pax_global_header00006660000000000000000000000064135161752700014521gustar00rootroot0000000000000052 comment=138c70106835ee0f05879e7f2f46bca8dae7ca99 trace-cmd-2.8.3/000077500000000000000000000000001351617527000133725ustar00rootroot00000000000000trace-cmd-2.8.3/COPYING000066400000000000000000000004141351617527000144240ustar00rootroot00000000000000There are two main licenses that the tools in this directory are covered under. For the applications themselves, they are covered under GPL-2.0 (see LICENSES/GPL-2.0). 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(d) I understand and agree that this project and the contribution are public and that a record of the contribution (including all personal information I submit with it, including my sign-off) is maintained indefinitely and may be redistributed consistent with this project or the open source license(s) involved. then you just add a line saying:: Signed-off-by: Random J Developer using your real name (sorry, no pseudonyms or anonymous contributions.) Some people also put extra tags at the end. They'll just be ignored for now, but you can do this to mark internal company procedures or just point out some special detail about the sign-off. trace-cmd-2.8.3/Documentation/000077500000000000000000000000001351617527000162035ustar00rootroot00000000000000trace-cmd-2.8.3/Documentation/HTML/000077500000000000000000000000001351617527000167475ustar00rootroot00000000000000trace-cmd-2.8.3/Documentation/HTML/images/000077500000000000000000000000001351617527000202145ustar00rootroot00000000000000trace-cmd-2.8.3/Documentation/HTML/images/kshark-cursor-1.png000066400000000000000000001672661351617527000237000ustar00rootroot00000000000000PNG  IHDR+t+sBITOtEXtSoftwaregnome-screenshot> IDATxw|?~)$$@^B 4"#b+ Ҕ@BTAz!$$+r\Klnvv=w{)!J,xWB3 L5BEURZ_~=2M UXXؾ}{B\H#PJ!RB}ԊZ1NN:u/73??]Vt:ZmUe JDNZD晬 G& ;ytԋiJB !y,RJ  /P! 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KernelShark

Table of Contents

Introduction

The Graph View

  • Zooming In
  • Zooming Out
  • Graph Markers
  • Graph Cursor
  • Graph Plots
  • Task Plots
  • CPU Plots

    • The List View

  • Selecting an event
  • Graph follows toggle

    • Filters

  • Task Filter
  • Event Filter
  • Advance Event Filter

    • Introduction

    KernelShark is a front end reader of trace-cmd(1) output. "trace-cmd record" and "trace-cmd extract" create a trace.dat (trace-cmd.dat(5)) file. kernelshark can read this file and produce a graph and list view of its data.

    The application has two main viewing areas split by a paned divider. The top half is a graphical display of the data and the bottom half is a list view of each event. Underneath the menu bar is the graph information area:

    Graph Info Area

    The graph information line displays the timestamp of various locations. The Pointer: shows the timestamp of where the mouse pointer is. The Cursor: is the timestamp of the cursor location. To select a cursor location, double click on the graph. Marker A is set with a left mouse click and Marker B is set with a with a left mouse click while holding down the shift key.

    The graph is broken into two parts, the plot title section:

    Plot Title

    and the plot area:

    The plot area contains the data of the given plot, where plots can be per CPU or per task. The top of the plot area shows a timeline. The numbers in the timeline are seconds. The time in the timeline is taken from the timestamps within the trace.dat file which are architecture dependent. The time usually is the timestamp from when the system started.

    Below the graph is the list area.

    List Area

    The list area contains the Page of the list. The list can hold a maximum of 1 million entries per page. If the trace data contains more than a million entries, then the list will have more than one page.

    The list area also contains a search field to search for elements in the list.

    The Graph View

    The graph view of kernelshark shows graphical plots of the data stored in the trace.dat file. The data plots are per CPU or per task. When there are too many events within the resolution of the graph, the plots will appear as a rainbow colored bar. To make more sense out of the graphs, you need to zoom into a given location to see the details of that time frame more clearly.

    Zooming In

    To zoom in, left mouse click and hold and then drag the mouse right, release to zoom. When you click the left mouse button a line will appear and stay at that location. When you move the mouse to the right, another line appears and will follow the mouse. When you release the mouse button, the area between the two lines become the new width of the screen. That is, the graph zooms in until the lines match the width of the screen. This allows you to zoom into a specific location.

    The area that you selected will now become the new width of the viewable area. The smaller the selection, the deeper the zoom. Note, that you must select 10 pixels to zoom in. Less than 10 pixels will cancel the zoom. You can continue zooming in until you get more details.

    To save on resources, when zooming in, the beginning and end of the full trace may not be reachable with the horizontal scroll bar. If a plot contains no events within the reachable area, then the line will be empty, as CPU 1 is in the above image.

    CPU 0 shows two tasks that were running. One task is given a pink/red color and the other a green color. The think colored horizontal bar represents a task other than idle was running. The small lines that jet out of the bar are where events occur.

    If you zoom in enough such that a single event has enough room between itself and other events, the type of event and the name and PID of the task that was running will appear over the event.

    Zooming Out

    To zoom back out, left mouse click and hold and then drag the mouse left. This time the width between the two lines will become a single pixel. The farther apart the lines are, the farther the zoom out will be. Zoom out will stop at the width of the full trace.

    When the mouse is over an event, a tool tip will appear showing the event name, the latency data, the event info, the timestamp and the task name and task process ID.

    Graph Markers

    There are two markers that can be placed on the graph as well as a cursor. Marker A is set by a left mouse click. When a marker is set, the graph info area will be updated. Marker A is represented by a green line:

    To set Marker B, press and hold the shift key and click the left mouse button. Marker B will show up in red.

    When both the A and B markers are set, the graph info area will show the timestamp of where the A and B markers are, as well as the difference between the two. All timestamps are in seconds, with a resolution of microseconds.

    Graph Cursor

    Double clicking on the graph will set the cursor. The cursor is a blue line, and when it is set, it will also select the event in the list view that is the closest event at the timeline of where the cursor was selected.

    The above shows that list item 217448 (sys_exit) was the closest event to where the cursor was selected.

    Note that setting the cursor with double click will also set Marker A.

    Graph Plots

    The graph data is represented by plots. The data on the plots is either CPU specific or task specific. If it is CPU specific, then the data is the timeline of events that happened on a given CPU (which CPU is shown in the plot title area). If the plot is task specific, then the timeline of events is for the given task regardless of what CPU it was on at the time. The task name is also shown in the plot title area.

    By default, all the CPUs within the loaded trace.dat file are plotted. There are two ways to plot a task. One way is to right mouse click over a displayed task in the graph and select the plot option. This will add the task plot directly underneath the CPU plot that the task was on where the right mouse click took place. The other way is to use the Plots menu.

    Task Plots

    Selecting the "Tasks" menu item will bring up a dialog with all the tasks that were found in the trace data.

    Selecting a task in this dialog will add the task plot to the bottom of the graph area. Unselecting a task in this dialog will remove the plot.

    The colors in the task plots are different depending on which CPU the task was on at the time. The CPU plots change colors as different tasks run on the CPU, and the task plots change color depending on what CPU the task is running on. This makes it easy to see how much a task bounces around the CPUs. Zooming in on a task plot also shows some more characteristics of the task.

    The hollow green bar that is shown in front of some events in the task plot represents when the task was woken up from a sleeping state to when it actually ran. The hollow red bar between some events shows that the task was preempted by another task even though that task was still runnable.

    Since the hollow green bar shows the wake up latency of the task, the A,B markers can be used to measure that time.

    The above shows that the epiphany-browser with PID 28072 had a 479 microsecond wake up latency. The same can be done with the preemption latency.

    CPU Plots

    Selecting the "CPUs" plot menu item pops up a dialog that shows the available CPUs that can be plotted.

    Removing a selected CPU and hitting "Apply" will remove that CPU plot.

    The List View

    The list view is in the bottom half paned window and can be expanded or shortened with the paned handle.

    The top of the list view contains the list area which has the list page, list search, and "graph follows" toggle button. If more than a million events are stored in the list, then each set of million will be on a different page.

    The columns of the list are:

    • # - the index into the list.
    • CPU - the CPU that the event occurred on.
    • Time Stamp - The timestamp of the event. This is in seconds with microsecond resolution.
    • PID - The process ID of the task that was running when the event occurred.
    • Latency - The latency is broken into 5 fields:
      1. Interrupts disabled - 'd' if interrupts are disabled, otherwise '.'
      2. Need reschedule - 'N' if the kernel was notified that a schedule is needed, otherwise '.'
      3. In IRQ - 'h' if in a hard IRQ (hardware triggered), 's' if in a soft IRQ (context where the kernel initiated a the IRQ handler) or if soft IRQs are disabled, 'H' if in a hard IRQ and soft IRQs are disabled or the hard IRQ triggered while processing a soft IRQ, otherwise '.'
      4. Preemption counter - The index of the preemption counter. If it is other than zero, then the kernel will not preempt the running tasks, even if a schedule has been requested by some event. If the counter is zero, then '.' is shown.
      5. Lock depth - The depth of the big kernel lock being held. The big kernel lock is recursive (same task may acquire it multiple times). On the first acquisition, the depth is zero. This field will be zero or greater, or '.' if the big kernel lock is not held. When the big kernel lock is finally removed from the kernel, this field will go away as well.
    • Event - The name of the event.
    • Info - The data output of a particular event.

    The list search can find an event based on the contents in a row. Select a column, a match criteria and the content to match to find the next row that matches the search. The match criterion is one of the following:

    • contains - the row cell of the selected column contains the match data. This works with numbers as well.
    • full match - the row cell of the selected column matches exactly the match data.
    • does not have - the row cell of the selected column does not contain the match data.

    The search will find the next event that has the matching data within the column.

    Selecting an event

    A single click on a row will select the row, but a double click on a row will select that row as well as set the graph cursor to the location of that event. If the plot that the event is on is not visible then the graph will adjust its vertical view area to show the plot with the selected event. This has no effect on graph markers.

    Graph follows toggle

    When the "graph follows" toggle is set, then even a single click on a row will move the graph cursor. With the mouse focus on the list, using the keyboard up and down arrow keys will move the selection of the list as well as the graph cursor.

    Filters

    The amount of data that can be stored in a trace.dat file can be enormous. To make any sense out of some traces, it may be required to only display various events. The same can be true about tasks. Kernelshark has filters for tasks as well as for events.

    On start up of KernelShark, the task and event filters for the list and graph are kept synchronized. That is, any modification to the list filters will also update the graph filters, and vice versa. By selecting Filter->Unsync Graph and List Task Filters or Filter->Unsync Graph and List Event Filters will make the graph and list have their own task or event filters respectively.

    Task Filter

    The task filter can be set by either a right mouse click over an event on either the graph or the list view, and by selecting the option to add or remove the task to/from the task filter. A set of tasks may be added to the filters via the Filter menu in the menu bar.

    When tasks are selected from the menu bar the filter will be enabled automatically. When they are selected via the pop up menu, the filter needs to be enabled by the Enable menu also in the pop up menu.

    There are two types of task filters:

    • Task Filter - only show tasks that are in this filter
    • Hide Tasks - do not display the tasks within this filter

    If there are any tasks within the Task Filter then only those tasks will be displayed when the filter is enabled. Any task within the Hide Tasks filter will not be displayed, even if that same task is in the Task Filter.

    When either filter contains a task, the filter can be enabled.

    When a task is not in the "Task Filter", the pop up will show the menu item "Add task". When a task is in the "Task Filter" the pop up will show "Remove task".

    When a task is not in the "Hide Tasks", the pop up will show the menu item "Hide task". When a task is in the "Hide Tasks", the pop up will show "Show task".

    The scheduling events

    The events "sched_switch", "sched_wakeup", and "sched_wakeup_new" are treated differently by the task filter. Because these events deal with two tasks (previous and next, waker and wakee), if either of the tasks should be visible then that event is visible regardless if the other task should be hidden. This may seem confusing when an event that is hidden shows up in the Task column.

    Event Filter

    Like the task filter, the graph and list event filters start off synchronized. To make the list and graph have their own filter, just select the Filter->Unsync Graph and List Event Filters. The same can be done for task filters.

    Now the graph and list view will each have their own event filter. The event filters are enabled through the Filter menu on the top menu-bar.

    Notice that the menu changed after selecting Unsync Graph and List Event Filters. The events option was replaced by graph events and list events.

    Selecting either the "list events" or "graph events" will bring up the event dialog with the events that are visible selected.

    Note: these do not mean that the events exist in the trace.dat file. They are selected if the events are not to be hidden. Events that do not exist in the trace will not be displayed regardless of whether or not they are filtered.

    Clicking on "All" or any of the systems will either deselect all events underneath or select all events underneath depending on the previous state of the box being selected. By deselecting all events, it makes it easier to enable just a few individual events.

    To sync back the graph and list events, just select the Sync Graph and List Event Filters.

    If the selected events for the graph and list event filters are the same, then the two will become in-sync again. If not, a dialog will pop up asking how you want to sync the filters.

    • Sync List Filter with Graph Filter - will set the list event filter to be the same as what is in the graph filter.
    • Sync Graph Filter with List Filter - will set the graph event filter to be the same as what is in the list filter.

    By default the Keep the filters in sync is selected. If this is selected when OK is clicked, the graph and list filters will stay synchronized when one is changed. By unselecting the Keep option, the filters will by synchronized by the selected method, but a change to one of the filters will not affect the other.

    Advanced Event Filter

    Filtering on events may not be enough. The ability to filter on the content of individual events may be needed. In order to accomplish this, the advanced event filtering is used. Selecting the "list advanced event" or "graph advanced event" from the Filter menu will pop up the advanced event filtering dialog. The graph and list view each have their own advanced event filter.

    The "Filter:" entry at the bottom of the dialog is where the advanced filter is written. Above that is helper buttons to pick events, operations and event fields. The syntax of the filter is: 

       FILTER := EVENTS | EVENTS ':' EXPRESSION
   EVENTS := EVENTS ',' EVENTS | SYSTEM '/' EVENT | SYSTEM | EVENT
   SYSTEM := any system name
   EVENT  := any event name
   EXPRESSION := EXPRESSION BOOL EXPRESSION | '(' EXPRESSION ')' | OPERATION
   BOOL   := '&&' | '||'
   OPERATION := '!' EXPRESSION | LVALUE CMP RVALUE | LVALUE STRCMP STRVALUE
   CMP    := '>' | '<' | '==' | '>=' | '<=' | '!='
   STRCMP := '==' | '!=' | '=~' | '!~'
   RVALUE := integer | FIELD
   STRVALUE := string (double quoted value) | FIELD
   LVALUE := FIELD | EXPR
   EXPR   := FIELD OP RVALUE | '(' EXPR ')' | EXPR OP EXPR
   FIELD  := a field name of an event
   OP     := '+' | '-' | '*' | '/' | '<<' | '>>' | '&' | '!'

    Spaces are ignored. The example used in the dialog figure: 

      sched/sched_switch : next_prio < 100 && (prev_prio > 100 && prev_pid != 0)

    The sched/ is not necessary because without it, the filter will process all events named sched_switch, and since there is only one event that has that name, including the sched/ is redundant.

    The next_prio, prev_prio and prev_pid are all event fields of the sched_swich event.

    If just sched was used and the /sched_switch was omitted, it would still be a valid filter, but it would behave differently. By just specifying a system, the filter will run on all events within that system. When a field is encountered that does not belong to an event, then that compare will be set to false. 

       sched : prev_pid != 0
   sched : !(prev_pid == 0)

    The above two filters are not equivalent. They are for the sched_switch event, but not for the other events. The first filter will return false for all events that do not contain the prev_pid field, but the second filter would return true for all events that do not contain that field. Again, if the event does not contain a field, just that compare will be evaluated to false, not the entire expression. This means for events that do not have the prev_pid field, the above filters would be equivalent to: 

       sched : FALSE
   sched : !(FALSE)

    Letting filters contain fields that do not belong to an event be valid allows for various tricks where two events can share the same filter. 

       sched_switch, sched_wake.* : next_pid == 1 || pid == 1

    The schedule events that have next_pid and not pid as a field will just compare the first part of the || and those events with pid but without next_pid will be compared against the second part of the ||

    Notice that event names in the filter can be regular expressions.

    String fields can have regular expressions used in their comparing if =~ or !~ are used. 

       sched_switch : next_comm =~ "^events/[23]$"

    The available regular expressions are described in regex(7).

    Note: When adding an advanced filter, all non-advanced filters (added by the event filter dialog box) will be removed, and only the advanced filters will stay. But non-advanced filters may be added after advanced filters have been. The events that have advanced filters will be shaded in the event filter dialog:

    Just do not click on the advanced filter box and hit "Apply" unless you want to remove the advanced filter. Non-advanced filters can now be selected without affecting the advanced filters.

    When advanced filters already exist when the advanced filter dialog box pops up, they will be listed in the area at the top of the dialog. Although one filter may have been written, the list will be per event. A check box is to the left of the filter. When checked, the filter will be deleted if the "Apply" button is selected.

    trace-cmd-2.8.3/Documentation/Makefile000066400000000000000000000057751351617527000176610ustar00rootroot00000000000000 obj := $(obj)/Documentation src := $(src)/Documentation ifeq ($(VERBOSE),1) Q = print_asciidoc = print_xsltproc = print_install = hide_xsltproc_output = else Q = @ print_asciidoc = echo ' ASCIIDOC '`basename $@`; print_xsltproc = echo ' XSLTPROC '`basename $@`; print_install = echo ' INSTALL '`basename $1`' to $(DESTDIR_SQ)'$2; hide_xsltproc_output = 2> /dev/null endif define manpage.xsl if [ -z ${MANPAGE_DOCBOOK_XSL} ]; then \ echo "*********************************"; \ echo "** No docbook.xsl is installed **"; \ echo "** Can't make man pages **"; \ echo "*********************************"; \ exit 1; \ fi endef do_asciidoc_build = \ ($(print_asciidoc) \ asciidoc -d manpage -b docbook -o $@ $<) do_xsltproc_build = \ ($(print_xsltproc) \ xsltproc --nonet -o $@ ${MANPAGE_DOCBOOK_XSL} $< $(hide_xsltproc_output)) # # asciidoc requires a synopsis, but file format man pages (5) do # not require them. This removes it from the file in the final step. define remove_synopsis (sed -e '/^\.SH "SYNOPSIS"/,/ignore/d' $1 > $1.tmp;\ mv $1.tmp $1) endef # # Most likely a docbook.xsl is already installed on the users system # instead of creating a new wheel, lets reuse what's already there. # FIND_MANPAGE_DOCBOOK_XSL := $(shell find /usr -name docbook.xsl 2>/dev/null | grep manpages | head -1) MANPAGE_DOCBOOK_XSL ?= ${FIND_MANPAGE_DOCBOOK_XSL} $(obj)/%.xsl: $(src)/%.txt $(Q)mkdir -p $(obj) $(Q)$(do_asciidoc_build) $(obj)/%.1: $(obj)/%.1.xsl @$(call manpage.xsl) $(Q)$(do_xsltproc_build) $(obj)/%.5: $(obj)/%.5.xsl @$(call manpage.xsl) $(Q)$(do_xsltproc_build) $(Q)$(call remove_synopsis, $@) TEXT1 = $(wildcard *.1.txt) MAN1 = $(patsubst %.1.txt,$(obj)/%.1, ${TEXT1}) TEXT5 = $(wildcard *.5.txt) MAN5 = $(patsubst %.5.txt,$(obj)/%.5, ${TEXT5}) all: $(MAN1) $(MAN5) # Need to find out how to export a macro instead of # copying this from the main Makefile. define do_install_data $(print_install) \ if [ ! -d '$(DESTDIR_SQ)$2' ]; then \ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \ fi; \ $(INSTALL) -m 644 $1 '$(DESTDIR_SQ)$2' endef MAN1_INSTALL = $(MAN1:%.1=%.1.install) MAN5_INSTALL = $(MAN5:%.5=%.5.install) $(MAN1_INSTALL): %.1.install : %.1 force $(Q)$(call do_install_data,$<,$(man_dir_SQ)/man1) $(MAN5_INSTALL): %.5.install : %.5 force $(Q)$(call do_install_data,$<,$(man_dir_SQ)/man5) html_dir = $(src)/HTML image_dir = $(html_dir)/images HTML = $(wildcard $(html_dir)/*.html) IMGS = $(wildcard $(image_dir)/*.png) HTML_INSTALL = $(subst .html,.html.install,$(HTML)) IMGS_INSTALL = $(subst .png,.png.install,$(IMGS)) $(HTML_INSTALL): %.html.install : %.html force $(Q)$(call do_install_data,$<,'$(html_install_SQ)') $(IMGS_INSTALL): %.png.install : %.png force $(Q)$(call do_install_data,$<,'$(img_install_SQ)') GUI_INSTALL = $(HTML_INSTALL) $(IMGS_INSTALL) install: $(MAN1_INSTALL) $(MAN5_INSTALL) $(GUI_INSTALL) clean: (cd $(obj); \ $(RM) *.xml *.xsl *.1 *.5) .PHONE: force force: trace-cmd-2.8.3/Documentation/README.PythonPlugin000066400000000000000000000067431351617527000215340ustar00rootroot00000000000000 PYTHON PLUGIN DOCUMENTATION ============================= With the python plugin (make python-plugin) you can now write plugins in python. The API exported by the python plugin itself (written in C) allows you to access most information about a record from python. To write a python plugin, put a new .py file into a new ~/.trace-cmd/python/ directory. The most basic python plugin is this: --- %< --- def register(pevent): pass --- >% --- which obviously does nothing at all. To register a callback, use the pevent.register_event_handler function: --- %< --- import tracecmd def my_event_handler(trace_seq, event): pass def register(pevent): pevent.register_event_handler("subsys", "event_name", my_event_handler) --- >% --- There are four object types that you get, described below. tracecmd.PEvent ----------------- This is the class of the 'pevent' object above, you get one of those via your register callback. It has one method and one property: * register_event_handler() - example above, to register an event handler function * file_endian - either '<' or '>' indicating which endianness the file has, to be used with struct.unpack() tracecmd.TraceSeq ------------------- This is the class of the 'trace_seq' parameter to your callback function. It has only one method, puts(), to put data into the buffer. Formatting must be done in python. tracecmd.Event ---------------------- This is the class of the 'event' parameter to your callback function. Note that it doesn't just contain the format, but also the event data. As such, you can do much with this, and this is what you'll usually use. Each instance of this allows access to record items via the dict protocol, and you can get the items via its keys() methods. So for example, your callback could be --- %< --- def my_callback(trace_seq, event): for fieldname in event.keys(): field = event[fieldname] --- >% --- Each field returned from the dict protocol is an instance of the next (and last) class: tracecmd.Field ---------------------- This is an instance of a field, including its data. It affords numerous use cases and is what you'll be using most. * If this is an integer field, i.e. 1, 2, 4 or 8 bytes long, you can convert it to the number contained, according to the file's endianness, by simply casting it to a long: field = event['myint'] value = long(field) * You can access the field's data, as field.data, and if the data is really a "__data_loc" type that will be resolved automatically. (If you don't know what this means, don't worry about it and just use field.data) This is it. It's pretty simple. A fully-featured plugin could look like this: --- %< --- def my_event_handler(trace_seq, event): trace_seq.puts("myev: %u", long(event['myfield'])) def register(pevent): pevent.register_event_handler("subsys", "event_name", my_event_handler) --- >% --- Tips and tricks ----------------- Be familiar with the struct module and use it, always checking endianness and potentially using pevent.file_endian. If you need access to pevent in your callbacks, simply pass it in yourself: --- %< --- def my_event_handler(pevent, trace_seq, event): pass def register(pevent): pevent.register_event_handler("subsys", "event_name", lambda *args: my_event_handler(pevent, *args) ) --- >% --- trace-cmd-2.8.3/Documentation/kernelshark.1.txt000066400000000000000000000015341351617527000214170ustar00rootroot00000000000000KERNELSHARK(1) ============== NAME ---- kernelshark - graphical reader for trace-cmd(1) output SYNOPSIS -------- *kernelshark* ['OPTIONS'] DESCRIPTION ----------- KernelShark is a front end reader of trace-cmd(1) output. It reads a trace-cmd.dat(5) formatted file and produces a graph and list view of the data. OPTIONS ------- *-h*:: Display the help text. *-v*:: Display the kernelshark version and exit. *-i* 'input-file':: Read trace data from the file 'input-file'. By default input is read from 'trace.dat'. SEE ALSO -------- trace-cmd(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-check-events.1.txt000066400000000000000000000024011351617527000233140ustar00rootroot00000000000000TRACE-CMD-CHECK_EVENTS(1) ========================= NAME ---- trace-cmd-check-events - parse the event formats on local system SYNOPSIS -------- *trace-cmd check-events* ['OPTIONS'] DESCRIPTION ----------- The trace-cmd(1) check-events parses format strings for all the events on the local system. It returns whether all the format strings can be parsed correctly. It will load plugins unless specified otherwise. This is useful to check for any trace event format strings which may contain some internal kernel function references which cannot be decoded outside of the kernel. This may mean that either the unparsed format strings of the trace events need to be changed or that a plugin needs to be created to parse them. OPTIONS ------- *-N* - Don't load plugins SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1), trace-cmd-start(1) AUTHOR ------ Written by Vaibhav Nagarnaik, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2011 Google, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-extract.1.txt000066400000000000000000000062001351617527000224100ustar00rootroot00000000000000TRACE-CMD-EXTRACT(1) ==================== NAME ---- trace-cmd-extract - extract out the data from the Ftrace Linux tracer. SYNOPSIS -------- *trace-cmd extract ['OPTIONS']* DESCRIPTION ----------- The trace-cmd(1) extract is usually used after 'trace-cmd-start(1)' and 'trace-cmd-stop(1)'. It can be used after the Ftrace tracer has been started manually through the Ftrace pseudo file system. The extract command creates a trace.dat file that can be used by 'trace-cmd-report(1)' to read from. It reads the kernel internal ring buffer to produce the trace.dat file. OPTIONS ------- *-p* 'plugin':: Although *extract* does not start any traces, some of the plugins require just reading the output in ASCII format. These are the latency tracers, since the latency tracers have a separate internal buffer. The plugin option is therefore only necessary for the 'wakeup', 'wakeup-rt', 'irqsoff', 'preemptoff' and 'preemptirqsoff' plugins. With out this option, the extract command will extract from the internal Ftrace buffers. *-O* 'option':: If a latency tracer is being extracted, and the *-p* option is used, then there are some Ftrace options that can change the format. This will update those options before extracting. To see the list of options see 'trace-cmd-list'. To enable an option, write its name, to disable the option append the characters 'no' to it. For example: 'noprint-parent' will disable the 'print-parent' option that prints the parent function in printing a function event. *-o* 'outputfile':: By default, the extract command will create a 'trace.dat' file. This option will change where the file is written to. *-s*:: Extract from the snapshot buffer (if the kernel supports it). *--date*:: This is the same as the trace-cmd-record(1) --date option, but it does cause the extract routine to disable all tracing. That is, the end of the extract will perform something similar to trace-cmd-reset(1). *-B* 'buffer-name':: If the kernel supports multiple buffers, this will extract the trace for only the given buffer. It does not affect any other buffer. This may be used multiple times to specify different buffers. When this option is used, the top level instance will not be extracted unless *-t* is given. *-a*:: Extract all existing buffer instances. When this option is used, the top level instance will not be extracted unless *-t* is given. *-t*:: Extracts the top level instance buffer. Without the *-B* or *-a* option this is the same as the default. But if *-B* or *-a* is used, this is required if the top level instance buffer should also be extracted. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-hist.1.txt000066400000000000000000000027311351617527000217120ustar00rootroot00000000000000TRACE-CMD-HIST(1) ================= NAME ---- trace-cmd-hist - show histogram of events in trace.dat file SYNOPSIS -------- *trace-cmd hist* ['OPTIONS']['input-file'] DESCRIPTION ----------- The trace-cmd(1) hist displays a histogram form from the trace.dat file. Instead of showing the events as they were ordered, it creates a histogram that can be displayed per task or for all tasks where the most common events appear first. It uses the function tracer and call stacks that it finds to try to put together a call graph of the events. OPTIONS ------- *-i* 'input-file':: By default, trace-cmd hist will read the file 'trace.dat'. But the *-i* option open up the given 'input-file' instead. Note, the input file may also be specified as the last item on the command line. *-P*:: To compact all events and show the call graphs by ignoring tasks and different PIDs, add the *-P* to do so. Instead of showing the task name, it will group all chains together and show "". SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-list.1.txt000066400000000000000000000042261351617527000217170ustar00rootroot00000000000000TRACE-CMD-LIST(1) ================= NAME ---- trace-cmd-list - list available plugins, events or options for Ftrace. SYNOPSIS -------- *trace-cmd list* ['OPTIONS'] DESCRIPTION ----------- The trace-cmd(1) list displays the available plugins, events or Ftrace options that are configured on the current machine. If no option is given, then it lists all plugins, events and Ftrace options to standard output. OPTIONS ------- *-e* ['regex']:: This option will list the available events that are enabled on the local system. It takes an optional argument that uses 'regcomp(3)' expressions to seach. trace-cmd list -e '^sys.*' *-F*:: Used with *-e* 'regex' to show those events formats. *-l*:: Used with *-e* 'regex' to show those events filters. *-R*:: Used with *-e* 'regex' to show those events triggers. *-t*:: This option will list the available tracers that are enabled on the local system. *-p*:: Same as *-t* and only for legacy purposes. *-o*:: This option will list the available Ftrace options that are configured on the local system. *-f* ['regex']:: This option will list the available filter functions. These are the list of functions on the system that you can trace, or filter on. It takes an optional argument that uses 'regcomp(3)' expressions to seach. trace-cmd list -f '^sched.*' *-P*:: List the plugin files that get loaded on trace-cmd report. *-O*:: List plugin options that can be used by trace-cmd report *-O* option. *-B*:: List defined buffer instances (sub buffers). *-C*:: List defined clocks that can be used with trace-cmd record -C. The one in brackets ([]) is the active clock. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-listen.1.txt000066400000000000000000000030441351617527000222370ustar00rootroot00000000000000TRACE-CMD-LISTEN(1) =================== NAME ---- trace-cmd-listen - listen for incoming connection to record tracing. SYNOPSIS -------- *trace-cmd listen* -p 'port' ['OPTIONS'] DESCRIPTION ----------- The trace-cmd(1) listen sets up a port to listen to waiting for connections from other hosts that run 'trace-cmd-record(1)' with the *-N* option. When a connection is made, and the remote host sends data, it will create a file called 'trace.HOST:PORT.dat'. Where HOST is the name of the remote host, and PORT is the port that the remote host used to connect with. OPTIONS ------- *-p* 'port':: This option will specify the port to listen to. *-D*:: This options causes trace-cmd listen to go into a daemon mode and run in the background. *-d* 'dir':: This option specifies a directory to write the data files into. *-o* 'filename':: This option overrides the default 'trace' in the 'trace.HOST:PORT.dat' that is created when a remote host connects. *-l* 'filename':: This option writes the output messages to a log file instead of standard output. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-mem.1.txt000066400000000000000000000071251351617527000215230ustar00rootroot00000000000000TRACE-CMD-MEM(1) ================ NAME ---- trace-cmd-mem - show memory usage of certain kmem events SYNOPSIS -------- *trace-cmd mem* ['OPTIONS']['input-file'] DESCRIPTION ----------- The trace-cmd(1) mem requires a trace-cmd record that enabled the following events: kmalloc kmalloc_node kfree kmem_cache_alloc kmem_cache_alloc_node kmem_cache_alloc_free It then reads the amount requested and the ammount freed as well as the functions that called the allocation. It then reports the final amount of bytes requested and allocated, along with the total amount allocated and requested, as well as the max allocation and requested during the run. It reports the amount of wasted bytes (allocated - requested) that was not freed, as well as the max wasted amount during the run. The list is sorted by descending order of wasted bytes after the run. Function Waste Alloc req TotAlloc TotReq MaxAlloc MaxReq MaxWaste -------- ----- ----- --- -------- ------ -------- ------ -------- rb_allocate_cpu_buffer 768 2304 1536 2304 1536 2304 1536 768 alloc_pipe_info 400 1152 752 1152 752 1152 752 400 instance_mkdir 252 544 292 544 292 544 292 252 __d_alloc 215 1086560 1086345 1087208 1086993 1086560 1086345 215 get_empty_filp 72 2304 2232 4864 4712 4864 4712 152 mm_alloc 40 960 920 960 920 960 920 40 prepare_creds 32 192 160 1728 1440 1728 1440 288 tracing_buffers_open 8 32 24 32 24 32 24 8 do_brk 0 0 0 368 368 368 368 0 journal_add_journal_head 0 6048 6048 6048 6048 6048 6048 0 journal_start 0 0 0 1224 1224 48 48 0 __rb_allocate_pages 0 3289856 3289856 3289856 3289856 3289856 3289856 0 anon_vma_alloc 0 0 0 936 936 864 864 0 [...] OPTIONS ------- *-i* 'input-file':: By default, trace-cmd hist will read the file 'trace.dat'. But the *-i* option open up the given 'input-file' instead. Note, the input file may also be specified as the last item on the command line. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-hist(1), trace-cmd-split(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2013 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-options.1.txt000066400000000000000000000014321351617527000224330ustar00rootroot00000000000000TRACE-CMD-OPTIONS(1) ==================== NAME ---- trace-cmd-options - list available options from trace-cmd plugins SYNOPSIS -------- *trace-cmd options* DESCRIPTION ----------- The trace-cmd(1) options command will examine all the trace-cmd plugins that are used by *trace-cmd report(1)* and list them. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2011 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-profile.1.txt000066400000000000000000000761621351617527000224140ustar00rootroot00000000000000TRACE-CMD-PROFILE(1) ==================== NAME ---- trace-cmd-profile - profile tasks running live SYNOPSIS -------- *trace-cmd profile ['OPTIONS']* ['command'] DESCRIPTION ----------- The trace-cmd(1) profile will start tracing just like trace-cmd-record(1), with the *--profile* option, except that it does not write to a file, but instead, it will read the events as they happen and will update the accounting of the events. When the trace is finished, it will report the results just like trace-cmd-report(1) would do with its *--profile* option. In other words, the profile command does the work of trace-cmd record --profile, and trace-cmd report --profile without having to record the data to disk, in between. The advantage of using the profile command is that the profiling can be done over a long period of time where recording all events would take up too much disk space. This will enable several events as well as the function graph tracer with a depth of one (if the kernel supports it). This is to show where tasks enter and exit the kernel and how long they were in the kernel. To disable calling function graph, use the *-p* option to enable another tracer. To not enable any tracer, use *-p nop*. All timings are currently in nanoseconds. OPTIONS ------- These are the same as trace-cmd-record(1) with the *--profile* option. *-p* 'tracer':: Set a tracer plugin to run instead of function graph tracing set to depth of 1. To not run any tracer, use *-p nop*. *-S*:: Only enable the tracer or events speficied on the command line. With this option, the function_graph tracer is not enabled, nor are any events (like sched_switch), unless they are specifically specified on the command line (i.e. -p function -e sched_switch -e sched_wakeup) *-G*:: Set interrupt (soft and hard) events as global (associated to CPU instead of tasks). *-o* 'file':: Write the output of the profile to 'file'. This supersedes *--stderr* *-H* 'event-hooks':: Add custom event matching to connect any two events together. Format is: [:],[,]/ [:],[,] The start_system:start_event (start_system is optional), is the event that starts the timing. start_match is the field in the start event that is to match with the end_match in the end event. start_pid is optional, as matches are attached to the tasks that run the events, if another field should be used to find that task, then it is specified with start_pid. end_system:end_event is the event that ends the timing (end_system is optional). end_match is the field in end_match that wil match the start event field start_match. flags are optional and can be the following (case insensitive): p : The two events are pinned to the same CPU (start and end happen on the same CPU always). s : The event should have a stack traced with it (enable stack tracing for the start event). g : The event is global (not associated to a task). start_pid is not applicable with this flag. *--stderr*:: Redirect the output to stderr. The output of the command being executed is not changed. This allows watching the command execute and saving the output of the profile to another file. EXAMPLES -------- --- # trace-cmd profile -F sleep 1 [..] task: sleep-1121 Event: sched_switch:R (2) Total: 234559 Avg: 117279 Max: 129886 Min:104673 | + ftrace_raw_event_sched_switch (0xffffffff8109f310) 100% (2) time:234559 max:129886 min:104673 avg:117279 __schedule (0xffffffff816c1e81) preempt_schedule (0xffffffff816c236e) ___preempt_schedule (0xffffffff81351a59) | + unmap_single_vma (0xffffffff81198c05) | 55% (1) time:129886 max:129886 min:0 avg:129886 | stop_one_cpu (0xffffffff8110909a) | sched_exec (0xffffffff810a119b) | do_execveat_common.isra.31 (0xffffffff811de528) | do_execve (0xffffffff811dea8c) | SyS_execve (0xffffffff811ded1e) | return_to_handler (0xffffffff816c8458) | stub_execve (0xffffffff816c6929) | + unmap_single_vma (0xffffffff81198c05) 45% (1) time:104673 max:104673 min:0 avg:104673 unmap_vmas (0xffffffff81199174) exit_mmap (0xffffffff811a1f5b) mmput (0xffffffff8107699a) flush_old_exec (0xffffffff811ddb75) load_elf_binary (0xffffffff812287df) search_binary_handler (0xffffffff811dd3e0) do_execveat_common.isra.31 (0xffffffff811de8bd) do_execve (0xffffffff811dea8c) SyS_execve (0xffffffff811ded1e) return_to_handler (0xffffffff816c8458) stub_execve (0xffffffff816c6929) Event: sched_switch:S (1) Total: 1000513242 Avg: 1000513242 Max: 1000513242 Min:1000513242 | + ftrace_raw_event_sched_switch (0xffffffff8109f310) 100% (1) time:1000513242 max:1000513242 min:0 avg:1000513242 __schedule (0xffffffff816c1e81) schedule (0xffffffff816c23b9) do_nanosleep (0xffffffff816c4f1c) hrtimer_nanosleep (0xffffffff810dcd86) SyS_nanosleep (0xffffffff810dcea6) return_to_handler (0xffffffff816c8458) tracesys_phase2 (0xffffffff816c65b0) Event: sched_wakeup:1121 (1) Total: 43405 Avg: 43405 Max: 43405 Min:43405 | + ftrace_raw_event_sched_wakeup_template (0xffffffff8109d960) 100% (1) time:43405 max:43405 min:0 avg:43405 ttwu_do_wakeup (0xffffffff810a01a2) ttwu_do_activate.constprop.122 (0xffffffff810a0236) try_to_wake_up (0xffffffff810a3ec3) wake_up_process (0xffffffff810a4057) hrtimer_wakeup (0xffffffff810db772) __run_hrtimer (0xffffffff810dbd91) hrtimer_interrupt (0xffffffff810dc6b7) local_apic_timer_interrupt (0xffffffff810363e7) smp_trace_apic_timer_interrupt (0xffffffff816c8c6a) trace_apic_timer_interrupt (0xffffffff816c725a) finish_task_switch (0xffffffff8109c3a4) __schedule (0xffffffff816c1e01) schedule (0xffffffff816c23b9) ring_buffer_wait (0xffffffff811323a3) wait_on_pipe (0xffffffff81133d93) tracing_buffers_splice_read (0xffffffff811350b0) do_splice_to (0xffffffff8120476f) SyS_splice (0xffffffff81206c1f) tracesys_phase2 (0xffffffff816c65b0) Event: func: sys_nanosleep() (1) Total: 1000598016 Avg: 1000598016 Max: 1000598016 Min:1000598016 Event: func: sys_munmap() (1) Total: 14300 Avg: 14300 Max: 14300 Min:14300 Event: func: sys_arch_prctl() (1) Total: 571 Avg: 571 Max: 571 Min:571 Event: func: sys_mprotect() (4) Total: 14382 Avg: 3595 Max: 7196 Min:2190 Event: func: SyS_read() (1) Total: 2640 Avg: 2640 Max: 2640 Min:2640 Event: func: sys_close() (5) Total: 4001 Avg: 800 Max: 1252 Min:414 Event: func: sys_newfstat() (3) Total: 11684 Avg: 3894 Max: 10206 Min:636 Event: func: SyS_open() (3) Total: 23615 Avg: 7871 Max: 10535 Min:4743 Event: func: sys_access() (1) Total: 5924 Avg: 5924 Max: 5924 Min:5924 Event: func: SyS_mmap() (8) Total: 39153 Avg: 4894 Max: 12354 Min:1518 Event: func: smp_trace_apic_timer_interrupt() (1) Total: 10298 Avg: 10298 Max: 10298 Min:10298 Event: func: SyS_brk() (4) Total: 2407 Avg: 601 Max: 1564 Min:206 Event: func: do_notify_resume() (2) Total: 4095 Avg: 2047 Max: 2521 Min:1574 Event: func: sys_execve() (5) Total: 1625251 Avg: 325050 Max: 1605698 Min:3570 | + ftrace_raw_event_sched_wakeup_template (0xffffffff8109d960) 100% (1) time:1605698 max:1605698 min:0 avg:1605698 ttwu_do_wakeup (0xffffffff810a01a2) ttwu_do_activate.constprop.122 (0xffffffff810a0236) try_to_wake_up (0xffffffff810a3ec3) wake_up_process (0xffffffff810a4057) cpu_stop_queue_work (0xffffffff81108df8) stop_one_cpu (0xffffffff8110909a) sched_exec (0xffffffff810a119b) do_execveat_common.isra.31 (0xffffffff811de528) do_execve (0xffffffff811dea8c) SyS_execve (0xffffffff811ded1e) return_to_handler (0xffffffff816c8458) stub_execve (0xffffffff816c6929) stub_execve (0xffffffff816c6929) Event: func: syscall_trace_enter_phase2() (38) Total: 21544 Avg: 566 Max: 1066 Min:329 Event: func: syscall_trace_enter_phase1() (38) Total: 9202 Avg: 242 Max: 376 Min:150 Event: func: __do_page_fault() (53) Total: 257672 Avg: 4861 Max: 27745 Min:458 | + ftrace_raw_event_sched_wakeup_template (0xffffffff8109d960) 100% (1) time:27745 max:27745 min:0 avg:27745 ttwu_do_wakeup (0xffffffff810a01a2) ttwu_do_activate.constprop.122 (0xffffffff810a0236) try_to_wake_up (0xffffffff810a3ec3) default_wake_function (0xffffffff810a4002) autoremove_wake_function (0xffffffff810b50fd) __wake_up_common (0xffffffff810b4958) __wake_up (0xffffffff810b4cb8) rb_wake_up_waiters (0xffffffff8112f126) irq_work_run_list (0xffffffff81157d0f) irq_work_run (0xffffffff81157d5e) smp_trace_irq_work_interrupt (0xffffffff810082fc) trace_irq_work_interrupt (0xffffffff816c7aaa) return_to_handler (0xffffffff816c8458) trace_do_page_fault (0xffffffff810478b2) trace_page_fault (0xffffffff816c7dd2) Event: func: syscall_trace_leave() (38) Total: 26145 Avg: 688 Max: 1264 Min:381 Event: func: __sb_end_write() (1) Total: 373 Avg: 373 Max: 373 Min:373 Event: func: fsnotify() (1) Total: 598 Avg: 598 Max: 598 Min:598 Event: func: __fsnotify_parent() (1) Total: 286 Avg: 286 Max: 286 Min:286 Event: func: mutex_unlock() (2) Total: 39636 Avg: 19818 Max: 39413 Min:223 Event: func: smp_trace_irq_work_interrupt() (6) Total: 236459 Avg: 39409 Max: 100671 Min:634 | + ftrace_raw_event_sched_wakeup_template (0xffffffff8109d960) 100% (4) time:234348 max:100671 min:38745 avg:58587 ttwu_do_wakeup (0xffffffff810a01a2) ttwu_do_activate.constprop.122 (0xffffffff810a0236) try_to_wake_up (0xffffffff810a3ec3) default_wake_function (0xffffffff810a4002) autoremove_wake_function (0xffffffff810b50fd) __wake_up_common (0xffffffff810b4958) __wake_up (0xffffffff810b4cb8) rb_wake_up_waiters (0xffffffff8112f126) irq_work_run_list (0xffffffff81157d0f) irq_work_run (0xffffffff81157d5e) smp_trace_irq_work_interrupt (0xffffffff810082fc) return_to_handler (0xffffffff816c8458) trace_irq_work_interrupt (0xffffffff816c7aaa) | + ftrace_return_to_handler (0xffffffff81140840) | 84% (3) time:197396 max:100671 min:38745 avg:65798 | return_to_handler (0xffffffff816c846d) | trace_page_fault (0xffffffff816c7dd2) | + ftrace_return_to_handler (0xffffffff81140840) 16% (1) time:36952 max:36952 min:0 avg:36952 ftrace_graph_caller (0xffffffff816c8428) mutex_unlock (0xffffffff816c3f75) rb_simple_write (0xffffffff81133142) vfs_write (0xffffffff811d7727) SyS_write (0xffffffff811d7acf) tracesys_phase2 (0xffffffff816c65b0) Event: sys_enter:35 (1) Total: 1000599765 Avg: 1000599765 Max: 1000599765 Min:1000599765 Event: sys_enter:11 (1) Total: 55025 Avg: 55025 Max: 55025 Min:55025 Event: sys_enter:158 (1) Total: 1584 Avg: 1584 Max: 1584 Min:1584 Event: sys_enter:10 (4) Total: 18359 Avg: 4589 Max: 8764 Min:2933 Event: sys_enter:0 (1) Total: 4223 Avg: 4223 Max: 4223 Min:4223 Event: sys_enter:3 (5) Total: 9948 Avg: 1989 Max: 2606 Min:1203 Event: sys_enter:5 (3) Total: 15530 Avg: 5176 Max: 11840 Min:1405 Event: sys_enter:2 (3) Total: 28002 Avg: 9334 Max: 12035 Min:5656 Event: sys_enter:21 (1) Total: 7814 Avg: 7814 Max: 7814 Min:7814 Event: sys_enter:9 (8) Total: 49583 Avg: 6197 Max: 14137 Min:2362 Event: sys_enter:12 (4) Total: 108493 Avg: 27123 Max: 104079 Min:922 Event: sys_enter:59 (5) Total: 1631608 Avg: 326321 Max: 1607529 Min:4563 Event: page_fault_user:0x398d86b630 (1) Event: page_fault_user:0x398d844de0 (1) Event: page_fault_user:0x398d8d9020 (1) Event: page_fault_user:0x1d37008 (1) Event: page_fault_user:0x7f0b89e91074 (1) Event: page_fault_user:0x7f0b89d98ed0 (1) Event: page_fault_user:0x7f0b89ec8950 (1) Event: page_fault_user:0x7f0b89d83644 (1) Event: page_fault_user:0x7f0b89d622a8 (1) Event: page_fault_user:0x7f0b89d5a560 (1) Event: page_fault_user:0x7f0b89d34010 (1) Event: page_fault_user:0x1d36008 (1) Event: page_fault_user:0x398d900510 (1) Event: page_fault_user:0x398dbb3ae8 (1) Event: page_fault_user:0x398d87f490 (1) Event: page_fault_user:0x398d8eb660 (1) Event: page_fault_user:0x398d8bd730 (1) Event: page_fault_user:0x398d9625d9 (1) Event: page_fault_user:0x398d931810 (1) Event: page_fault_user:0x398dbb7114 (1) Event: page_fault_user:0x398d837610 (1) Event: page_fault_user:0x398d89e860 (1) Event: page_fault_user:0x398d8f23b0 (1) Event: page_fault_user:0x398dbb4510 (1) Event: page_fault_user:0x398dbad6f0 (1) Event: page_fault_user:0x398dbb1018 (1) Event: page_fault_user:0x398d977b37 (1) Event: page_fault_user:0x398d92eb60 (1) Event: page_fault_user:0x398d8abff0 (1) Event: page_fault_user:0x398dbb0d30 (1) Event: page_fault_user:0x398dbb6c24 (1) Event: page_fault_user:0x398d821c50 (1) Event: page_fault_user:0x398dbb6c20 (1) Event: page_fault_user:0x398d886350 (1) Event: page_fault_user:0x7f0b90125000 (1) Event: page_fault_user:0x7f0b90124740 (1) Event: page_fault_user:0x7f0b90126000 (1) Event: page_fault_user:0x398d816230 (1) Event: page_fault_user:0x398d8002b8 (1) Event: page_fault_user:0x398dbb0b40 (1) Event: page_fault_user:0x398dbb2880 (1) Event: page_fault_user:0x7f0b90141cc6 (1) Event: page_fault_user:0x7f0b9013b85c (1) Event: page_fault_user:0x7f0b90127000 (1) Event: page_fault_user:0x606e70 (1) Event: page_fault_user:0x7f0b90144010 (1) Event: page_fault_user:0x7fffcb31b038 (1) Event: page_fault_user:0x606da8 (1) Event: page_fault_user:0x400040 (1) Event: page_fault_user:0x398d222218 (1) Event: page_fault_user:0x398d015120 (1) Event: page_fault_user:0x398d220ce8 (1) Event: page_fault_user:0x398d220b80 (1) Event: page_fault_user:0x7fffcb2fcff8 (1) Event: page_fault_user:0x398d001590 (1) Event: page_fault_user:0x398d838490 (1) Event: softirq_raise:RCU (3) Total: 252931 Avg: 84310 Max: 243288 Min:4639 Event: softirq_raise:SCHED (2) Total: 241249 Avg: 120624 Max: 239076 Min:2173 | + ftrace_raw_event_sched_wakeup_template (0xffffffff8109d960) 100% (1) time:239076 max:239076 min:0 avg:239076 ttwu_do_wakeup (0xffffffff810a01a2) ttwu_do_activate.constprop.122 (0xffffffff810a0236) try_to_wake_up (0xffffffff810a3ec3) default_wake_function (0xffffffff810a4002) autoremove_wake_function (0xffffffff810b50fd) __wake_up_common (0xffffffff810b4958) __wake_up (0xffffffff810b4cb8) rb_wake_up_waiters (0xffffffff8112f126) irq_work_run_list (0xffffffff81157d0f) irq_work_run (0xffffffff81157d5e) smp_trace_irq_work_interrupt (0xffffffff810082fc) trace_irq_work_interrupt (0xffffffff816c7aaa) irq_exit (0xffffffff8107dd66) smp_trace_apic_timer_interrupt (0xffffffff816c8c7a) trace_apic_timer_interrupt (0xffffffff816c725a) prepare_ftrace_return (0xffffffff8103d4fd) ftrace_graph_caller (0xffffffff816c8428) mem_cgroup_begin_page_stat (0xffffffff811cfd25) page_remove_rmap (0xffffffff811a4fc5) stub_execve (0xffffffff816c6929) unmap_single_vma (0xffffffff81198b1c) unmap_vmas (0xffffffff81199174) exit_mmap (0xffffffff811a1f5b) mmput (0xffffffff8107699a) flush_old_exec (0xffffffff811ddb75) load_elf_binary (0xffffffff812287df) search_binary_handler (0xffffffff811dd3e0) do_execveat_common.isra.31 (0xffffffff811de8bd) do_execve (0xffffffff811dea8c) SyS_execve (0xffffffff811ded1e) return_to_handler (0xffffffff816c8458) Event: softirq_raise:HI (3) Total: 72472 Avg: 24157 Max: 64186 Min:3430 Event: softirq_entry:RCU (2) Total: 3191 Avg: 1595 Max: 1788 Min:1403 | + ftrace_raw_event_sched_wakeup_template (0xffffffff8109d960) 100% (1) time:1788 max:1788 min:0 avg:1788 ttwu_do_wakeup (0xffffffff810a01a2) ttwu_do_activate.constprop.122 (0xffffffff810a0236) try_to_wake_up (0xffffffff810a3ec3) default_wake_function (0xffffffff810a4002) autoremove_wake_function (0xffffffff810b50fd) __wake_up_common (0xffffffff810b4958) __wake_up (0xffffffff810b4cb8) rb_wake_up_waiters (0xffffffff8112f126) irq_work_run_list (0xffffffff81157d0f) irq_work_run (0xffffffff81157d5e) smp_trace_irq_work_interrupt (0xffffffff810082fc) trace_irq_work_interrupt (0xffffffff816c7aaa) irq_work_queue (0xffffffff81157e95) ring_buffer_unlock_commit (0xffffffff8113039f) __buffer_unlock_commit (0xffffffff811367d5) trace_buffer_unlock_commit (0xffffffff811376a2) ftrace_event_buffer_commit (0xffffffff81146d5f) ftrace_raw_event_sched_process_exec (0xffffffff8109c511) do_execveat_common.isra.31 (0xffffffff811de9a3) do_execve (0xffffffff811dea8c) SyS_execve (0xffffffff811ded1e) return_to_handler (0xffffffff816c8458) stub_execve (0xffffffff816c6929) Event: softirq_entry:SCHED (2) Total: 2289 Avg: 1144 Max: 1350 Min:939 Event: softirq_entry:HI (3) Total: 180146 Avg: 60048 Max: 178969 Min:499 | + ftrace_raw_event_sched_wakeup_template (0xffffffff8109d960) 100% (1) time:178969 max:178969 min:0 avg:178969 ttwu_do_wakeup (0xffffffff810a01a2) ttwu_do_activate.constprop.122 (0xffffffff810a0236) try_to_wake_up (0xffffffff810a3ec3) wake_up_process (0xffffffff810a4057) wake_up_worker (0xffffffff8108de74) insert_work (0xffffffff8108fca6) __queue_work (0xffffffff8108fe12) delayed_work_timer_fn (0xffffffff81090088) call_timer_fn (0xffffffff810d8f89) run_timer_softirq (0xffffffff810da8a1) __do_softirq (0xffffffff8107d8fa) irq_exit (0xffffffff8107dd66) smp_trace_apic_timer_interrupt (0xffffffff816c8c7a) trace_apic_timer_interrupt (0xffffffff816c725a) prepare_ftrace_return (0xffffffff8103d4fd) ftrace_graph_caller (0xffffffff816c8428) mem_cgroup_begin_page_stat (0xffffffff811cfd25) page_remove_rmap (0xffffffff811a4fc5) stub_execve (0xffffffff816c6929) unmap_single_vma (0xffffffff81198b1c) unmap_vmas (0xffffffff81199174) exit_mmap (0xffffffff811a1f5b) mmput (0xffffffff8107699a) flush_old_exec (0xffffffff811ddb75) load_elf_binary (0xffffffff812287df) search_binary_handler (0xffffffff811dd3e0) do_execveat_common.isra.31 (0xffffffff811de8bd) do_execve (0xffffffff811dea8c) SyS_execve (0xffffffff811ded1e) return_to_handler (0xffffffff816c8458) --- The above uses *-F* to follow the sleep task. It filters only on events that pertain to sleep. Note, in order to follow forks, you need to also include the *-c* flag. Other tasks will appear in the profile as well if events reference more than one task (like sched_switch and sched_wakeup do. The "prev_pid" and "next_pid" of sched_switch, and the "common_pid" and "pid" of sched_wakeup). Stack traces are attached to events that are related to them. Taking a look at the above output: Event: sched_switch:R (2) Total: 234559 Avg: 117279 Max: 129886 Min:104673 This shows that task was preempted (it's in the running 'R' state). It was preempted twice '(2)' for a total of 234,559 nanoseconds, with a average preempt time of 117,279 ns, and maximum of 128,886 ns and minimum of 104,673 ns. The tree shows where it was preempted: | + ftrace_raw_event_sched_switch (0xffffffff8109f310) 100% (2) time:234559 max:129886 min:104673 avg:117279 __schedule (0xffffffff816c1e81) preempt_schedule (0xffffffff816c236e) ___preempt_schedule (0xffffffff81351a59) | + unmap_single_vma (0xffffffff81198c05) | 55% (1) time:129886 max:129886 min:0 avg:129886 | stop_one_cpu (0xffffffff8110909a) | sched_exec (0xffffffff810a119b) | do_execveat_common.isra.31 (0xffffffff811de528) | do_execve (0xffffffff811dea8c) | SyS_execve (0xffffffff811ded1e) | return_to_handler (0xffffffff816c8458) | stub_execve (0xffffffff816c6929) | + unmap_single_vma (0xffffffff81198c05) 45% (1) time:104673 max:104673 min:0 avg:104673 unmap_vmas (0xffffffff81199174) exit_mmap (0xffffffff811a1f5b) mmput (0xffffffff8107699a) flush_old_exec (0xffffffff811ddb75) load_elf_binary (0xffffffff812287df) search_binary_handler (0xffffffff811dd3e0) do_execveat_common.isra.31 (0xffffffff811de8bd) do_execve (0xffffffff811dea8c) SyS_execve (0xffffffff811ded1e) return_to_handler (0xffffffff816c8458) stub_execve (0xffffffff816c6929) Event: sched_switch:S (1) Total: 1000513242 Avg: 1000513242 Max: 1000513242 Min:10005132 This shows that the task was scheduled out in the INTERRUPTIBLE state once for a total of 1,000,513,242 ns (~1s), which makes sense as the task was a "sleep 1". After the schedule events, the function events are shown. By default the profiler will use the function graph tracer if the depth setting is supported by the kernel. It will set the depth to one which will only trace the first function that enters the kernel. It will also record the amount of time it was in the kernel. Event: func: sys_nanosleep() (1) Total: 1000598016 Avg: 1000598016 Max: 1000598016 Min:1000598016 Event: func: sys_munmap() (1) Total: 14300 Avg: 14300 Max: 14300 Min:14300 Event: func: sys_arch_prctl() (1) Total: 571 Avg: 571 Max: 571 Min:571 Event: func: sys_mprotect() (4) Total: 14382 Avg: 3595 Max: 7196 Min:2190 Event: func: SyS_read() (1) Total: 2640 Avg: 2640 Max: 2640 Min:2640 Event: func: sys_close() (5) Total: 4001 Avg: 800 Max: 1252 Min:414 Event: func: sys_newfstat() (3) Total: 11684 Avg: 3894 Max: 10206 Min:636 Event: func: SyS_open() (3) Total: 23615 Avg: 7871 Max: 10535 Min:4743 Event: func: sys_access() (1) Total: 5924 Avg: 5924 Max: 5924 Min:5924 Event: func: SyS_mmap() (8) Total: 39153 Avg: 4894 Max: 12354 Min:1518 Event: func: smp_trace_apic_timer_interrupt() (1) Total: 10298 Avg: 10298 Max: 10298 Min:10298 Event: func: SyS_brk() (4) Total: 2407 Avg: 601 Max: 1564 Min:206 Event: func: do_notify_resume() (2) Total: 4095 Avg: 2047 Max: 2521 Min:1574 Event: func: sys_execve() (5) Total: 1625251 Avg: 325050 Max: 1605698 Min:3570 Count of times the event was hit is always in parenthesis '(5)'. The function graph trace may produce too much overhead as it is still triggering (just not tracing) on all functions. To limit functions just to system calls (not interrupts), add the following option: -l 'sys_*' -l 'SyS_*' To disable function graph tracing totally, use: -p nop To use function tracing instead (note, this will not record timings, but just the count of times a function is hit): -p function Following the functions are the events that are recorded. Event: sys_enter:35 (1) Total: 1000599765 Avg: 1000599765 Max: 1000599765 Min:1000599765 Event: sys_enter:11 (1) Total: 55025 Avg: 55025 Max: 55025 Min:55025 Event: sys_enter:158 (1) Total: 1584 Avg: 1584 Max: 1584 Min:1584 Event: sys_enter:10 (4) Total: 18359 Avg: 4589 Max: 8764 Min:2933 Event: sys_enter:0 (1) Total: 4223 Avg: 4223 Max: 4223 Min:4223 Event: sys_enter:3 (5) Total: 9948 Avg: 1989 Max: 2606 Min:1203 Event: sys_enter:5 (3) Total: 15530 Avg: 5176 Max: 11840 Min:1405 Event: sys_enter:2 (3) Total: 28002 Avg: 9334 Max: 12035 Min:5656 Event: sys_enter:21 (1) Total: 7814 Avg: 7814 Max: 7814 Min:7814 Event: sys_enter:9 (8) Total: 49583 Avg: 6197 Max: 14137 Min:2362 Event: sys_enter:12 (4) Total: 108493 Avg: 27123 Max: 104079 Min:922 Event: sys_enter:59 (5) Total: 1631608 Avg: 326321 Max: 1607529 Min:4563 These are the raw system call events, with the raw system call ID after the "sys_enter:" For example, "59" is execve(2). Why did it execute 5 times? Looking at a strace of this run, we can see: execve("/usr/lib64/ccache/sleep", ["sleep", "1"], [/* 27 vars */] <... execve resumed> ) = -1 ENOENT (No such file or directory) execve("/usr/local/sbin/sleep", ["sleep", "1"], [/* 27 vars */] <... execve resumed> ) = -1 ENOENT (No such file or directory) execve("/usr/local/bin/sleep", ["sleep", "1"], [/* 27 vars */] <... execve resumed> ) = -1 ENOENT (No such file or directory) execve("/usr/sbin/sleep", ["sleep", "1"], [/* 27 vars */] <... execve resumed> ) = -1 ENOENT (No such file or directory) execve("/usr/bin/sleep", ["sleep", "1"], [/* 27 vars */] <... execve resumed> ) = 0 It attempted to execve the "sleep" command for each path in $PATH until it found one. The page_fault_user events show what userspace address took a page fault. Event: softirq_raise:RCU (3) Total: 252931 Avg: 84310 Max: 243288 Min:4639 Event: softirq_raise:SCHED (2) Total: 241249 Avg: 120624 Max: 239076 Min:2173 | + ftrace_raw_event_sched_wakeup_template (0xffffffff8109d960) 100% (1) time:239076 max:239076 min:0 avg:239076 ttwu_do_wakeup (0xffffffff810a01a2) ttwu_do_activate.constprop.122 (0xffffffff810a0236) try_to_wake_up (0xffffffff810a3ec3) default_wake_function (0xffffffff810a4002) autoremove_wake_function (0xffffffff810b50fd) __wake_up_common (0xffffffff810b4958) __wake_up (0xffffffff810b4cb8) rb_wake_up_waiters (0xffffffff8112f126) irq_work_run_list (0xffffffff81157d0f) irq_work_run (0xffffffff81157d5e) smp_trace_irq_work_interrupt (0xffffffff810082fc) trace_irq_work_interrupt (0xffffffff816c7aaa) irq_exit (0xffffffff8107dd66) The timings for the softirq_raise events measure the time it took from the raised softirq to the time it executed. The timings for the softirq_entry events measure the time the softirq took to execute. The stack traces for the softirqs (and possibly other events) are used when an event has a stack attached to it. This can happen if the profile ran more stacks than just the sched events, or when events are dropped and stacks To have full control of what gets traced, use the *-S* option that will have trace-cmd not enable any events or the function_graph tracer. Only the events listed on the command line are shown. If only the time of kmalloc is needed to be seen, and where it was recorded, using the *-S* option and enabling function_graph and stack tracing for just the function needed will give the profile of only that function. --- # trace-cmd profile -S -p function_graph -l '*kmalloc*' -l '*kmalloc*:stacktrace' sleep 1 task: sshd-11786 Event: func: __kmalloc_reserve.isra.59() (2) Total: 149684 Avg: 74842 Max: 75598 Min:74086 | + __alloc_skb (0xffffffff815a8917) | 67% (2) time:149684 max:75598 min:74086 avg:74842 | __kmalloc_node_track_caller (0xffffffff811c6635) | __kmalloc_reserve.isra.59 (0xffffffff815a84ac) | return_to_handler (0xffffffff816c8458) | sk_stream_alloc_skb (0xffffffff81604ea1) | tcp_sendmsg (0xffffffff8160592c) | inet_sendmsg (0xffffffff8162fed1) | sock_aio_write (0xffffffff8159f9fc) | do_sync_write (0xffffffff811d694a) | vfs_write (0xffffffff811d7825) | SyS_write (0xffffffff811d7adf) | system_call_fastpath (0xffffffff816c63d2) | + __alloc_skb (0xffffffff815a8917) 33% (1) time:74086 max:74086 min:74086 avg:74086 __alloc_skb (0xffffffff815a8917) sk_stream_alloc_skb (0xffffffff81604ea1) tcp_sendmsg (0xffffffff8160592c) inet_sendmsg (0xffffffff8162fed1) sock_aio_write (0xffffffff8159f9fc) do_sync_write (0xffffffff811d694a) vfs_write (0xffffffff811d7825) SyS_write (0xffffffff811d7adf) system_call_fastpath (0xffffffff816c63d2) [..] --- To watch the command run but save the output of the profile to a file use --stderr, and redirect stderr to a file # trace-cmd profile --stderr cyclictest -p 80 -n -t1 2> profile.out Or simple use *-o* # trace-cmd profile -o profile.out cyclictest -p 80 -n -t1 SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2014 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-record.1.txt000066400000000000000000000500741351617527000222240ustar00rootroot00000000000000TRACE-CMD-RECORD(1) =================== NAME ---- trace-cmd-record - record a trace from the Ftrace Linux internal tracer SYNOPSIS -------- *trace-cmd record* ['OPTIONS'] ['command'] DESCRIPTION ----------- The trace-cmd(1) record command will set up the Ftrace Linux kernel tracer to record the specified plugins or events that happen while the 'command' executes. If no command is given, then it will record until the user hits Ctrl-C. The record command of trace-cmd will set up the Ftrace tracer to start tracing the various events or plugins that are given on the command line. It will then create a number of tracing processes (one per CPU) that will start recording from the kernel ring buffer straight into temporary files. When the command is complete (or Ctrl-C is hit) all the files will be combined into a trace.dat file that can later be read (see trace-cmd-report(1)). OPTIONS ------- *-p* 'tracer':: Specify a tracer. Tracers usually do more than just trace an event. Common tracers are: *function*, *function_graph*, *preemptirqsoff*, *irqsoff*, *preemptoff* and *wakeup*. A tracer must be supported by the running kernel. To see a list of available tracers, see trace-cmd-list(1). *-e* 'event':: Specify an event to trace. Various static trace points have been added to the Linux kernel. They are grouped by subsystem where you can enable all events of a given subsystem or specify specific events to be enabled. The 'event' is of the format "subsystem:event-name". You can also just specify the subsystem without the ':event-name' or the event-name without the "subsystem:". Using "-e sched_switch" will enable the "sched_switch" event where as, "-e sched" will enable all events under the "sched" subsystem. The 'event' can also contain glob expressions. That is, "*stat*" will select all events (or subsystems) that have the characters "stat" in their names. The keyword 'all' can be used to enable all events. *-a*:: Every event that is being recorded has its output format file saved in the output file to be able to display it later. But if other events are enabled in the trace without trace-cmd's knowledge, the formats of those events will not be recorded and trace-cmd report will not be able to display them. If this is the case, then specify the *-a* option and the format for all events in the system will be saved. *-T*:: Enable a stacktrace on each event. For example: -0 [003] 58549.289091: sched_switch: kworker/0:1:0 [120] R ==> trace-cmd:2603 [120] -0 [003] 58549.289092: kernel_stack: => schedule (ffffffff814b260e) => cpu_idle (ffffffff8100a38c) => start_secondary (ffffffff814ab828) *--func-stack*:: Enable a stack trace on all functions. Note this is only applicable for the "function" plugin tracer, and will only take effect if the -l option is used and succeeds in limiting functions. If the function tracer is not filtered, and the stack trace is enabled, you can live lock the machine. *-f* 'filter':: Specify a filter for the previous event. This must come after a *-e*. This will filter what events get recorded based on the content of the event. Filtering is passed to the kernel directly so what filtering is allowed may depend on what version of the kernel you have. Basically, it will let you use C notation to check if an event should be processed or not. ---------------------------------------- ==, >=, <=, >, <, &, |, && and || ---------------------------------------- The above are usually safe to use to compare fields. *--no-filter*:: Do not filter out the trace-cmd threads. By default, the threads are filtered out to not be traced by events. This option will have the trace-cmd threads also be traced. *-R* 'trigger':: Specify a trigger for the previous event. This must come after a *-e*. This will add a given trigger to the given event. To only enable the trigger and not the event itself, then place the event after the *-v* option. See Documentation/trace/events.txt in the Linux kernel source for more information on triggers. *-v*:: This will cause all events specified after it on the command line to not be traced. This is useful for selecting a subsystem to be traced but to leave out various events. For Example: "-e sched -v -e "\*stat\*"" will enable all events in the sched subsystem except those that have "stat" in their names. Note: the *-v* option was taken from the way grep(1) inverts the following matches. *-F*:: This will filter only the executable that is given on the command line. If no command is given, then it will filter itself (pretty pointless). Using *-F* will let you trace only events that are caused by the given command. *-P* 'pid':: Similar to *-F* but lets you specify a process ID to trace. *-c*:: Used with either *-F* (or *-P* if kernel supports it) to trace the process' children too. *-C* 'clock':: Set the trace clock to "clock". Use trace-cmd(1) list -C to see what clocks are available. *-o* 'output-file':: By default, trace-cmd report will create a 'trace.dat' file. You can specify a different file to write to with the *-o* option. *-l* 'function-name':: This will limit the 'function' and 'function_graph' tracers to only trace the given function name. More than one *-l* may be specified on the command line to trace more than one function. The limited use of glob expressions are also allowed. These are 'match\*' to only filter functions that start with 'match'. '\*match' to only filter functions that end with 'match'. '\*match\*' to only filter on functions that contain 'match'. *-g* 'function-name':: This option is for the function_graph plugin. It will graph the given function. That is, it will only trace the function and all functions that it calls. You can have more than one *-g* on the command line. *-n* 'function-name':: This has the opposite effect of *-l*. The function given with the *-n* option will not be traced. This takes precedence, that is, if you include the same function for both *-n* and *-l*, it will not be traced. *-d*:: Some tracer plugins enable the function tracer by default. Like the latency tracers. This option prevents the function tracer from being enabled at start up. *-D*:: The option *-d* will try to use the function-trace option to disable the function tracer (if available), otherwise it defaults to the proc file: /proc/sys/kernel/ftrace_enabled, but will not touch it if the function-trace option is available. The *-D* option will disable both the ftrace_enabled proc file as well as the function-trace option if it exists. Note, this disable function tracing for all users, which includes users outside of ftrace tracers (stack_tracer, perf, etc). *-O* 'option':: Ftrace has various options that can be enabled or disabled. This allows you to set them. Appending the text 'no' to an option disables it. For example: "-O nograph-time" will disable the "graph-time" Ftrace option. *-s* 'interval':: The processes that trace-cmd creates to record from the ring buffer need to wake up to do the recording. Setting the 'interval' to zero will cause the processes to wakeup every time new data is written into the buffer. But since Ftrace is recording kernel activity, the act of this processes going back to sleep may cause new events into the ring buffer which will wake the process back up. This will needlessly add extra data into the ring buffer. The 'interval' metric is microseconds. The default is set to 1000 (1 ms). This is the time each recording process will sleep before waking up to record any new data that was written to the ring buffer. *-r* 'priority':: The priority to run the capture threads at. In a busy system the trace capturing threads may be staved and events can be lost. This increases the priority of those threads to the real time (FIFO) priority. But use this option with care, it can also change the behaviour of the system being traced. *-b* 'size':: This sets the ring buffer size to 'size' kilobytes. Because the Ftrace ring buffer is per CPU, this size is the size of each per CPU ring buffer inside the kernel. Using "-b 10000" on a machine with 4 CPUs will make Ftrace have a total buffer size of 40 Megs. *-B* 'buffer-name':: If the kernel supports multiple buffers, this will add a buffer with the given name. If the buffer name already exists, that buffer is just reset and will not be deleted at the end of record execution. If the buffer is created, it will be removed at the end of execution (unless the *-k* is set, or 'start' command was used). After a buffer name is stated, all events added after that will be associated with that buffer. If no buffer is specified, or an event is specified before a buffer name, it will be associated with the main (toplevel) buffer. trace-cmd record -e sched -B block -e block -B time -e timer sleep 1 The above is will enable all sched events in the main buffer. It will then create a 'block' buffer instance and enable all block events within that buffer. A 'time' buffer instance is created and all timer events will be enabled for that event. *-m* 'size':: The max size in kilobytes that a per cpu buffer should be. Note, due to rounding to page size, the number may not be totally correct. Also, this is performed by switching between two buffers that are half the given size thus the output may not be of the given size even if much more was written. Use this to prevent running out of diskspace for long runs. *-M* 'cpumask':: Set the cpumask for to trace. It only affects the last buffer instance given. If supplied before any buffer instance, then it affects the main buffer. The value supplied must be a hex number. trace-cmd record -p function -M c -B events13 -e all -M 5 If the -M is left out, then the mask stays the same. To enable all CPUs, pass in a value of '-1'. *-k*:: By default, when trace-cmd is finished tracing, it will reset the buffers and disable all the tracing that it enabled. This option keeps trace-cmd from disabling the tracer and reseting the buffer. This option is useful for debugging trace-cmd. Note: usually trace-cmd will set the "tracing_on" file back to what it was before it was called. This option will leave that file set to zero. *-i*:: By default, if an event is listed that trace-cmd does not find, it will exit with an error. This option will just ignore events that are listed on the command line but are not found on the system. *-N* 'host:port':: If another machine is running "trace-cmd listen", this option is used to have the data sent to that machine with UDP packets. Instead of writing to an output file, the data is sent off to a remote box. This is ideal for embedded machines with little storage, or having a single machine that will keep all the data in a single repository. Note: This option is not supported with latency tracer plugins: wakeup, wakeup_rt, irqsoff, preemptoff and preemptirqsoff *-t*:: This option is used with *-N*, when there's a need to send the live data with TCP packets instead of UDP. Although TCP is not nearly as fast as sending the UDP packets, but it may be needed if the network is not that reliable, the amount of data is not that intensive, and a guarantee is needed that all traced information is transfered successfully. *-q* | *--quiet*:: For use with recording an application. Suppresses normal output (except for errors) to allow only the application's output to be displayed. *--date*:: With the *--date* option, "trace-cmd" will write timestamps into the trace buffer after it has finished recording. It will then map the timestamp to gettimeofday which will allow wall time output from the timestamps reading the created 'trace.dat' file. *--max-graph-depth* 'depth':: Set the maximum depth the function_graph tracer will trace into a function. A value of one will only show where userspace enters the kernel but not any functions called in the kernel. The default is zero, which means no limit. *--module* 'module':: Filter a module's name in function tracing. It is equivalent to adding ':mod:module' after all other functions being filtered. If no other function filter is listed, then all modules functions will be filtered in the filter. '--module snd' is equivalent to '-l :mod:snd' '--module snd -l "*jack*"' is equivalent to '-l "*jack*:mod:snd"' '--module snd -n "*"' is equivalent to '-n :mod:snd' *--profile*:: With the *--profile* option, "trace-cmd" will enable tracing that can be used with trace-cmd-report(1) --profile option. If a tracer *-p* is not set, and function graph depth is supported by the kernel, then the function_graph tracer will be enabled with a depth of one (only show where userspace enters into the kernel). It will also enable various tracepoints with stack tracing such that the report can show where tasks have been blocked for the longest time. See trace-cmd-profile(1) for more details and examples. *-H* 'event-hooks':: Add custom event matching to connect any two events together. When not used with *--profile*, it will save the parameter and this will be used by trace-cmd report --profile, too. That is: trace-cmd record -H hrtimer_expire_entry,hrtimer/hrtimer_expire_exit,hrtimer,sp trace-cmd report --profile Will profile hrtimer_expire_entry and hrtimer_expire_ext times. See trace-cmd-profile(1) for format. *-S*:: (for --profile only) Only enable the tracer or events speficied on the command line. With this option, the function_graph tracer is not enabled, nor are any events (like sched_switch), unless they are specifically specified on the command line (i.e. -p function -e sched_switch -e sched_wakeup) *--ts-offset offset*:: Add an offset for the timestamp in the trace.dat file. This will add a offset option into the trace.dat file such that a trace-cmd report will offset all the timestamps of the events by the given offset. The offset is in raw units. That is, if the event timestamps are in nanoseconds the offset will also be in nanoseconds even if the displayed units are in microseconds. *--stderr*:: Have output go to stderr instead of stdout, but the output of the command executed will not be changed. This is useful if you want to monitor the output of the command being executed, but not see the output from trace-cmd. EXAMPLES -------- The basic way to trace all events: ------------------------------ # trace-cmd record -e all ls > /dev/null # trace-cmd report trace-cmd-13541 [003] 106260.693809: filemap_fault: address=0x128122 offset=0xce trace-cmd-13543 [001] 106260.693809: kmalloc: call_site=81128dd4 ptr=0xffff88003dd83800 bytes_req=768 bytes_alloc=1024 gfp_flags=GFP_KERNEL|GFP_ZERO ls-13545 [002] 106260.693809: kfree: call_site=810a7abb ptr=0x0 ls-13545 [002] 106260.693818: sys_exit_write: 0x1 ------------------------------ To use the function tracer with sched switch tracing: ------------------------------ # trace-cmd record -p function -e sched_switch ls > /dev/null # trace-cmd report ls-13587 [002] 106467.860310: function: hrtick_start_fair <-- pick_next_task_fair ls-13587 [002] 106467.860313: sched_switch: prev_comm=trace-cmd prev_pid=13587 prev_prio=120 prev_state=R ==> next_comm=trace-cmd next_pid=13583 next_prio=120 trace-cmd-13585 [001] 106467.860314: function: native_set_pte_at <-- __do_fault trace-cmd-13586 [003] 106467.860314: function: up_read <-- do_page_fault ls-13587 [002] 106467.860317: function: __phys_addr <-- schedule trace-cmd-13585 [001] 106467.860318: function: _raw_spin_unlock <-- __do_fault ls-13587 [002] 106467.860320: function: native_load_sp0 <-- __switch_to trace-cmd-13586 [003] 106467.860322: function: down_read_trylock <-- do_page_fault ------------------------------ Here is a nice way to find what interrupts have the highest latency: ------------------------------------------ # trace-cmd record -p function_graph -e irq_handler_entry -l do_IRQ sleep 10 # trace-cmd report -0 [000] 157412.933969: funcgraph_entry: | do_IRQ() { -0 [000] 157412.933974: irq_handler_entry: irq=48 name=eth0 -0 [000] 157412.934004: funcgraph_exit: + 36.358 us | } -0 [000] 157413.895004: funcgraph_entry: | do_IRQ() { -0 [000] 157413.895011: irq_handler_entry: irq=48 name=eth0 -0 [000] 157413.895026: funcgraph_exit: + 24.014 us | } -0 [000] 157415.891762: funcgraph_entry: | do_IRQ() { -0 [000] 157415.891769: irq_handler_entry: irq=48 name=eth0 -0 [000] 157415.891784: funcgraph_exit: + 22.928 us | } -0 [000] 157415.934869: funcgraph_entry: | do_IRQ() { -0 [000] 157415.934874: irq_handler_entry: irq=48 name=eth0 -0 [000] 157415.934906: funcgraph_exit: + 37.512 us | } -0 [000] 157417.888373: funcgraph_entry: | do_IRQ() { -0 [000] 157417.888381: irq_handler_entry: irq=48 name=eth0 -0 [000] 157417.888398: funcgraph_exit: + 25.943 us | } ------------------------------------------ An example of the profile: ------------------------------------------ # trace-cmd record --profile sleep 1 # trace-cmd report --profile --comm sleep task: sleep-21611 Event: sched_switch:R (1) Total: 99442 Avg: 99442 Max: 99442 Min:99442 1 total:99442 min:99442 max:99442 avg=99442 => ftrace_raw_event_sched_switch (0xffffffff8105f812) => __schedule (0xffffffff8150810a) => preempt_schedule (0xffffffff8150842e) => ___preempt_schedule (0xffffffff81273354) => cpu_stop_queue_work (0xffffffff810b03c5) => stop_one_cpu (0xffffffff810b063b) => sched_exec (0xffffffff8106136d) => do_execve_common.isra.27 (0xffffffff81148c89) => do_execve (0xffffffff811490b0) => SyS_execve (0xffffffff811492c4) => return_to_handler (0xffffffff8150e3c8) => stub_execve (0xffffffff8150c699) Event: sched_switch:S (1) Total: 1000506680 Avg: 1000506680 Max: 1000506680 Min:1000506680 1 total:1000506680 min:1000506680 max:1000506680 avg=1000506680 => ftrace_raw_event_sched_switch (0xffffffff8105f812) => __schedule (0xffffffff8150810a) => schedule (0xffffffff815084b8) => do_nanosleep (0xffffffff8150b22c) => hrtimer_nanosleep (0xffffffff8108d647) => SyS_nanosleep (0xffffffff8108d72c) => return_to_handler (0xffffffff8150e3c8) => tracesys_phase2 (0xffffffff8150c304) Event: sched_wakeup:21611 (1) Total: 30326 Avg: 30326 Max: 30326 Min:30326 1 total:30326 min:30326 max:30326 avg=30326 => ftrace_raw_event_sched_wakeup_template (0xffffffff8105f653) => ttwu_do_wakeup (0xffffffff810606eb) => ttwu_do_activate.constprop.124 (0xffffffff810607c8) => try_to_wake_up (0xffffffff8106340a) ------------------------------------------ SEE ALSO -------- trace-cmd(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1), trace-cmd-profile(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-report.1.txt000066400000000000000000000542561351617527000222670ustar00rootroot00000000000000TRACE-CMD-REPORT(1) =================== NAME ---- trace-cmd-report - show in ASCII a trace created by trace-cmd record SYNOPSIS -------- *trace-cmd report* ['OPTIONS'] ['input-file'] DESCRIPTION ----------- The trace-cmd(1) report command will output a human readable report of a trace created by trace-cmd record. OPTIONS ------- *-i* 'input-file':: By default, trace-cmd report will read the file 'trace.dat'. But the *-i* option open up the given 'input-file' instead. Note, the input file may also be specified as the last item on the command line. *-e*:: This outputs the endianess of the file. trace-cmd report is smart enough to be able to read big endian files on little endian machines, and vise versa. *-f*:: This outputs the list of functions that have been recorded in the file. *-P*:: This outputs the list of "trace_printk()" data. The raw trace data points to static pointers in the kernel. This must be stored in the trace.dat file. *-E*:: This lists the possible events in the file (but this list is not necessarily the list of events in the file). *--events*:: This will list the event formats that are stored in the trace.dat file. *--event* regex:: This will print events that match the given regex. If a colon is specified, then the characters before the colon will be used to match the system and the characters after the colon will match the event. trace-cmd report --event sys:read The above will only match events where the system name contains "sys" and the event name contains "read". trace-cmd report --event read The above will match all events that contain "read" in its name. Also it may list all events of a system that contains "read" as well. *--check-events*:: This will parse the event format strings that are stored in the trace.dat file and return whether the formats can be parsed correctly. It will load plugins unless *-N* is specified. *-t*:: Print the full timestamp. The timestamps in the data file are usually recorded to the nanosecond. But the default display of the timestamp is only to the microsecond. To see the full timestamp, add the *-t* option. *-F* 'filter':: Add a filter to limit what events are displayed. The format of the filter is: ------------------------------------------ ':' = SYSTEM'/'EVENT | SYSTEM | EVENT | ',' = EVENT_FIELD | '&&' | '||' | '(' ')' | '!' = '==' | '!=' | '>=' | '<=' | '>' | '<' | '&' | '|' | '^' | '+' | '-' | '*' | '/' | '%' = NUM | STRING | EVENT_FIELD ------------------------------------------ SYSTEM is the name of the system to filter on. If the EVENT is left out, then it applies to all events under the SYSTEM. If only one string is used without the '/' to deliminate between SYSTEM and EVENT, then the filter will be applied to all systems and events that match the given string. Whitespace is ignored, such that "sched:next_pid==123" is equivalent to "sched : next_pid == 123". STRING is defined with single or double quotes (single quote must end with single quote, and double with double). Whitespace within quotes are not ignored. The representation of a SYSTEM or EVENT may also be a regular expression as defined by 'regcomp(3)'. The EVENT_FIELD is the name of the field of an event that is being filtered. If the event does not contain the EVENT_FIELD, that part of the equation will be considered false. ------------------------------------------ -F 'sched : bogus == 1 || common_pid == 2' ------------------------------------------ The "bogus == 1" will always evaluate to FALSE because no event has a field called "bogus", but the "common_pid == 2" will still be evaluated since all events have the field "common_pid". Any "sched" event that was traced by the process with the PID of 2 will be shown. Note, the EVENT_FIELD is the field name as shown by an events format (as displayed with *--events*), and not what is found in the output. If the output shows "ID:foo" but the field that "foo" belongs to was called "name" in the event format, then "name" must be used in the filter. The same is true about values. If the value that is displayed is converted by to a string symbol, the filter checks the original value and not the value displayed. For example, to filter on all tasks that were in the running state at a context switch: ------------------------------------------ -F 'sched/sched_switch : prev_state==0' ------------------------------------------ Although the output displays 'R', having 'prev_stat=="R"' will not work. Note: You can also specify 'COMM' as an EVENT_FIELD. This will use the task name (or comm) of the record to compare. For example, to filter out all of the "trace-cmd" tasks: ------------------------------------------ -F '.*:COMM != "trace-cmd"' ------------------------------------------ *-I*:: Do not print events where the HARDIRQ latency flag is set. This will filter out most events that are from interrupt context. Note, it may not filter out function traced functions that are in interrupt context but were called before the kernel "in interrupt" flag was set. *-S*:: Do not print events where the SOFTIRQ latency flag is set. This will filter out most events that are from soft interrupt context. *-v*:: This causes the following filters of *-F* to filter out the matching events. ------------------------------------------ -v -F 'sched/sched_switch : prev_state == 0' ------------------------------------------ Will not display any sched_switch events that have a prev_state of 0. Removing the *-v* will only print out those events. *-T*:: Test the filters of -F. After processing a filter string, the resulting filter will be displayed for each event. This is useful for using a filter for more than one event where a field may not exist in all events. Also it can be used to make sure there are no misspelled event field names, as they will simply be ignored. *-T* is ignored if *-F* is not specified. *-V*:: Show the plugins that are loaded. *-L*:: This will not load system wide plugins. It loads "local only". That is what it finds in the ~/.trace-cmd/plugins directory. *-N*:: This will not load any plugins. *-n* 'event-re':: This will cause all events that match the option to ignore any registered handler (by the plugins) to print the event. The normal event will be printed instead. The 'event-re' is a regular expression as defined by 'regcomp(3)'. *--profile*:: With the *--profile* option, "trace-cmd report" will process all the events first, and then output a format showing where tasks have spent their time in the kernel, as well as where they are blocked the most, and where wake up latencies are. See trace-cmd-profile(1) for more details and examples. *-G*:: Set interrupt (soft and hard) events as global (associated to CPU instead of tasks). Only works for --profile. *-H* 'event-hooks':: Add custom event matching to connect any two events together. See trace-cmd-profile(1) for format. *-R*:: This will show the events in "raw" format. That is, it will ignore the event's print formatting and just print the contents of each field. *-r* 'event-re':: This will cause all events that match the option to print its raw fields. The 'event-re' is a regular expression as defined by 'regcomp(3)'. *-l*:: This adds a "latency output" format. Information about interrupts being disabled, soft irq being disabled, the "need_resched" flag being set, preempt count, and big kernel lock are all being recorded with every event. But the default display does not show this information. This option will set display this information with 6 characters. When one of the fields is zero or N/A a \'.\' is shown. ------------------------------------------ -0 0d.h1. 106467.859747: function: ktime_get <-- tick_check_idle ------------------------------------------ The 0d.h1. denotes this information. The first character is never a '.' and represents what CPU the trace was recorded on (CPU 0). The 'd' denotes that interrupts were disabled. The 'h' means that this was called inside an interrupt handler. The '1' is the preemption disabled (preempt_count) was set to one. The two '.'s are "need_resched" flag and kernel lock counter. If the "need_resched" flag is set, then that character would be a 'N'. *-w*:: If both the 'sched_switch' and 'sched_wakeup' events are enabled, then this option will report the latency between the time the task was first woken, and the time it was scheduled in. *-q*:: Quiet non critical warnings. *-O*:: Pass options to the trace-cmd plugins that are loaded. -O plugin:var=value The 'plugin:' and '=value' are optional. Value may be left off for options that are boolean. If the 'plugin:' is left off, then any variable that matches in all plugins will be set. Example: -O fgraph:tailprint *--stat*:: If the trace.dat file recorded the final stats (outputed at the end of record) the *--stat* option can be used to retrieve them. *--uname*:: If the trace.dat file recorded uname during the run, this will retrieve that information. *--version*:: If the trace.dat file recorded the version of the executable used to create it, report that version. *--ts-offset* offset:: Add (or subtract if negative) an offset for all timestamps of the previous data file specified with *-i*. This is useful to merge sort multiple trace.dat files where the difference in the timestamp is known. For example if a trace is done on a virtual guest, and another trace is done on the host. If the host timestamp is 1000 units ahead of the guest, the following can be done: trace-cmd report -i host.dat --ts-offset -1000 -i guest.dat This will subtract 1000 timestamp units from all the host events as it merges with the guest.dat events. Note, the units is for the raw units recorded in the trace. If the units are nanoseconds, the addition (or subtraction) from the offset will be nanoseconds even if the displayed units are microseconds. *--ts2secs* HZ:: Convert the current clock source into a second (nanosecond resolution) output. When using clocks like x86-tsc, if the frequency is known, by passing in the clock frequency, this will convert the time to seconds. This option affects any trace.dat file given with *-i* proceeding it. If this option comes before any *-i* option, then that value becomes the default conversion for all other trace.dat files. If another --ts2secs option appears after a *-i* trace.dat file, than that option will override the default value. Example: On a 3.4 GHz machine trace-cmd record -p function -C x86-tsc trace-cmd report --ts2ns 3400000000 The report will convert the cycles timestamps into a readable second display. The default display resolution is microseconds, unless *-t* is used. The value of --ts-offset must still be in the raw timestamp units, even with this option. The offset will be converted as well. *--ts-diff*:: Show the time differences between events. The difference will appear in parenthesis just after the timestamp. EXAMPLES -------- Using a trace.dat file that was created with: ------------------------------------------ # trace-cmd record -p function -e all sleep 5 ------------------------------------------ The default report shows: ------------------------------------------ # trace-cmd report trace-cmd-16129 [002] 158126.498411: function: __mutex_unlock_slowpath <-- mutex_unlock trace-cmd-16131 [000] 158126.498411: kmem_cache_alloc: call_site=811223c5 ptr=0xffff88003ecf2b40 bytes_req=272 bytes_alloc=320 gfp_flags=GFP_KERNEL|GFP_ZERO trace-cmd-16130 [003] 158126.498411: function: do_splice_to <-- sys_splice sleep-16133 [001] 158126.498412: function: inotify_inode_queue_event <-- vfs_write trace-cmd-16129 [002] 158126.498420: lock_release: 0xffff88003f1fa4f8 &sb->s_type->i_mutex_key trace-cmd-16131 [000] 158126.498421: function: security_file_alloc <-- get_empty_filp sleep-16133 [001] 158126.498422: function: __fsnotify_parent <-- vfs_write trace-cmd-16130 [003] 158126.498422: function: rw_verify_area <-- do_splice_to trace-cmd-16131 [000] 158126.498424: function: cap_file_alloc_security <-- security_file_alloc trace-cmd-16129 [002] 158126.498425: function: syscall_trace_leave <-- int_check_syscall_exit_work sleep-16133 [001] 158126.498426: function: inotify_dentry_parent_queue_event <-- vfs_write trace-cmd-16130 [003] 158126.498426: function: security_file_permission <-- rw_verify_area trace-cmd-16129 [002] 158126.498428: function: audit_syscall_exit <-- syscall_trace_leave [...] ------------------------------------------ To see everything but the function traces: ------------------------------------------ # trace-cmd report -v -F 'function' trace-cmd-16131 [000] 158126.498411: kmem_cache_alloc: call_site=811223c5 ptr=0xffff88003ecf2b40 bytes_req=272 bytes_alloc=320 gfp_flags=GFP_KERNEL|GFP_ZERO trace-cmd-16129 [002] 158126.498420: lock_release: 0xffff88003f1fa4f8 &sb->s_type->i_mutex_key trace-cmd-16130 [003] 158126.498436: lock_acquire: 0xffffffff8166bf78 read all_cpu_access_lock trace-cmd-16131 [000] 158126.498438: lock_acquire: 0xffff88003df5b520 read &fs->lock trace-cmd-16129 [002] 158126.498446: kfree: call_site=810a7abb ptr=0x0 trace-cmd-16130 [003] 158126.498448: lock_acquire: 0xffff880002250a80 &per_cpu(cpu_access_lock, cpu) trace-cmd-16129 [002] 158126.498450: sys_exit_splice: 0xfffffff5 trace-cmd-16131 [000] 158126.498454: lock_release: 0xffff88003df5b520 &fs->lock sleep-16133 [001] 158126.498456: kfree: call_site=810a7abb ptr=0x0 sleep-16133 [001] 158126.498460: sys_exit_write: 0x1 trace-cmd-16130 [003] 158126.498462: kmalloc: call_site=810bf95b ptr=0xffff88003dedc040 bytes_req=24 bytes_alloc=32 gfp_flags=GFP_KERNEL|GFP_ZERO ------------------------------------------ To see only the kmalloc calls that were greater than 1000 bytes: ------------------------------------------ #trace-cmd report -F 'kmalloc: bytes_req > 1000' -0 [000] 158128.126641: kmalloc: call_site=81330635 ptr=0xffff88003c2fd000 bytes_req=2096 bytes_alloc=4096 gfp_flags=GFP_ATOMIC ------------------------------------------ To see wakeups and sched switches that left the previous task in the running state: ------------------------------------------ # trace-cmd report -F 'sched: prev_state == 0 || (success == 1)' trace-cmd-16132 [002] 158126.499951: sched_wakeup: comm=trace-cmd pid=16129 prio=120 success=1 target_cpu=002 trace-cmd-16132 [002] 158126.500401: sched_switch: prev_comm=trace-cmd prev_pid=16132 prev_prio=120 prev_state=R ==> next_comm=trace-cmd next_pid=16129 next_prio=120 -0 [003] 158126.500585: sched_wakeup: comm=trace-cmd pid=16130 prio=120 success=1 target_cpu=003 -0 [003] 158126.501241: sched_switch: prev_comm=swapper prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=trace-cmd next_pid=16130 next_prio=120 trace-cmd-16132 [000] 158126.502475: sched_wakeup: comm=trace-cmd pid=16131 prio=120 success=1 target_cpu=000 trace-cmd-16131 [002] 158126.506516: sched_wakeup: comm=trace-cmd pid=16129 prio=120 success=1 target_cpu=002 -0 [003] 158126.550110: sched_switch: prev_comm=swapper prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=trace-cmd next_pid=16130 next_prio=120 trace-cmd-16131 [003] 158126.570243: sched_wakeup: comm=trace-cmd pid=16129 prio=120 success=1 target_cpu=003 trace-cmd-16130 [002] 158126.618202: sched_switch: prev_comm=trace-cmd prev_pid=16130 prev_prio=120 prev_state=R ==> next_comm=yum-updatesd next_pid=3088 next_prio=1 20 trace-cmd-16129 [003] 158126.622379: sched_wakeup: comm=trace-cmd pid=16131 prio=120 success=1 target_cpu=003 trace-cmd-16129 [000] 158126.649287: sched_wakeup: comm=trace-cmd pid=16131 prio=120 success=1 target_cpu=000 ------------------------------------------ The above needs a little explanation. The filter specifies the "sched" subsystem, which includes both sched_switch and sched_wakeup events. Any event that does not have the format field "prev_state" or "success", will evaluate those expressions as FALSE, and will not produce a match. Using "||" will have the "prev_state" test happen for the "sched_switch" event and the "success" test happen for the "sched_wakeup" event. ------------------------------------------ # trace-cmd report -w -F 'sched_switch, sched_wakeup.*' [...] trace-cmd-16130 [003] 158131.580616: sched_wakeup: comm=trace-cmd pid=16131 prio=120 success=1 target_cpu=003 trace-cmd-16129 [000] 158131.581502: sched_switch: prev_comm=trace-cmd prev_pid=16129 prev_prio=120 prev_state=S ==> next_comm=trace-cmd next_pid=16131 next_prio=120 Latency: 885.901 usecs trace-cmd-16131 [000] 158131.582414: sched_wakeup: comm=trace-cmd pid=16129 prio=120 success=1 target_cpu=000 trace-cmd-16132 [001] 158131.583219: sched_switch: prev_comm=trace-cmd prev_pid=16132 prev_prio=120 prev_state=S ==> next_comm=trace-cmd next_pid=16129 next_prio=120 Latency: 804.809 usecs sleep-16133 [002] 158131.584121: sched_wakeup: comm=trace-cmd pid=16120 prio=120 success=1 target_cpu=002 trace-cmd-16129 [001] 158131.584128: sched_wakeup: comm=trace-cmd pid=16132 prio=120 success=1 target_cpu=001 sleep-16133 [002] 158131.584275: sched_switch: prev_comm=sleep prev_pid=16133 prev_prio=120 prev_state=R ==> next_comm=trace-cmd next_pid=16120 next_prio=120 Latency: 153.915 usecs trace-cmd-16130 [003] 158131.585284: sched_switch: prev_comm=trace-cmd prev_pid=16130 prev_prio=120 prev_state=S ==> next_comm=trace-cmd next_pid=16132 next_prio=120 Latency: 1155.677 usecs Average wakeup latency: 26626.656 usecs ------------------------------------------ The above trace produces the wakeup latencies of the tasks. The "sched_switch" event reports each individual latency after writing the event information. At the end of the report, the average wakeup latency is reported. ------------------------------------------ # trace-cmd report -w -F 'sched_switch, sched_wakeup.*: prio < 100 || next_prio < 100' -0 [003] 158131.516753: sched_wakeup: comm=ksoftirqd/3 pid=13 prio=49 success=1 target_cpu=003 -0 [003] 158131.516855: sched_switch: prev_comm=swapper prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=ksoftirqd/3 next_pid=13 next_prio=49 Latency: 101.244 usecs -0 [003] 158131.533781: sched_wakeup: comm=ksoftirqd/3 pid=13 prio=49 success=1 target_cpu=003 -0 [003] 158131.533897: sched_switch: prev_comm=swapper prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=ksoftirqd/3 next_pid=13 next_prio=49 Latency: 115.608 usecs -0 [003] 158131.569730: sched_wakeup: comm=ksoftirqd/3 pid=13 prio=49 success=1 target_cpu=003 -0 [003] 158131.569851: sched_switch: prev_comm=swapper prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=ksoftirqd/3 next_pid=13 next_prio=49 Latency: 121.024 usecs Average wakeup latency: 110.021 usecs ------------------------------------------ The above version will only show the wakeups and context switches of Real Time tasks. The 'prio' used inside the kernel starts at 0 for highest priority. That is 'prio' 0 is equivalent to user space real time priority 99, and priority 98 is equivalent to user space real time priority 1. Prios less than 100 represent Real Time tasks. An example of the profile: ------------------------------------------ # trace-cmd record --profile sleep 1 # trace-cmd report --profile --comm sleep task: sleep-21611 Event: sched_switch:R (1) Total: 99442 Avg: 99442 Max: 99442 Min:99442 1 total:99442 min:99442 max:99442 avg=99442 => ftrace_raw_event_sched_switch (0xffffffff8105f812) => __schedule (0xffffffff8150810a) => preempt_schedule (0xffffffff8150842e) => ___preempt_schedule (0xffffffff81273354) => cpu_stop_queue_work (0xffffffff810b03c5) => stop_one_cpu (0xffffffff810b063b) => sched_exec (0xffffffff8106136d) => do_execve_common.isra.27 (0xffffffff81148c89) => do_execve (0xffffffff811490b0) => SyS_execve (0xffffffff811492c4) => return_to_handler (0xffffffff8150e3c8) => stub_execve (0xffffffff8150c699) Event: sched_switch:S (1) Total: 1000506680 Avg: 1000506680 Max: 1000506680 Min:1000506680 1 total:1000506680 min:1000506680 max:1000506680 avg=1000506680 => ftrace_raw_event_sched_switch (0xffffffff8105f812) => __schedule (0xffffffff8150810a) => schedule (0xffffffff815084b8) => do_nanosleep (0xffffffff8150b22c) => hrtimer_nanosleep (0xffffffff8108d647) => SyS_nanosleep (0xffffffff8108d72c) => return_to_handler (0xffffffff8150e3c8) => tracesys_phase2 (0xffffffff8150c304) Event: sched_wakeup:21611 (1) Total: 30326 Avg: 30326 Max: 30326 Min:30326 1 total:30326 min:30326 max:30326 avg=30326 => ftrace_raw_event_sched_wakeup_template (0xffffffff8105f653) => ttwu_do_wakeup (0xffffffff810606eb) => ttwu_do_activate.constprop.124 (0xffffffff810607c8) => try_to_wake_up (0xffffffff8106340a) ------------------------------------------ SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1), trace-cmd-profile(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-reset.1.txt000066400000000000000000000074461351617527000220750ustar00rootroot00000000000000TRACE-CMD-RESET(1) ================== NAME ---- trace-cmd-reset - turn off all Ftrace tracing to bring back full performance SYNOPSIS -------- *trace-cmd reset* ['OPTIONS'] DESCRIPTION ----------- The trace-cmd(1) reset command turns off all tracing of Ftrace. This will bring back the performance of the system before tracing was enabled. This is necessary since 'trace-cmd-record(1)', 'trace-cmd-stop(1)' and 'trace-cmd-extract(1)' do not disable the tracer, event after the data has been pulled from the buffers. The rational is that the user may want to manually enable the tracer with the Ftrace pseudo file system, or examine other parts of Ftrace to see what trace-cmd did. After the reset command happens, the data in the ring buffer, and the options that were used are all lost. OPTIONS ------- Please note that the order that options are specified on the command line is significant. See EXAMPLES. *-b* 'buffer_size':: When the kernel boots, the Ftrace ring buffer is of a minimal size (3 pages per CPU). The first time the tracer is used, the ring buffer size expands to what it was set for (default 1.4 Megs per CPU). If no more tracing is to be done, this option allows you to shrink the ring buffer down to free up available memory. trace-cmd reset -b 1 The buffer instance affected is the one (or ones) specified by the most recently preceding *-B*, *-t*, or *-a* option: When used after *-B*, resizes the buffer instance that precedes it on the command line. When used after *-a*, resizes all buffer instances except the top one. When used after *-t* or before any *-B* or *-a*, resizes the top instance. *-B* 'buffer-name':: If the kernel supports multiple buffers, this will reset the trace for only the given buffer. It does not affect any other buffer. This may be used multiple times to specify different buffers. The top level buffer will not be reset if this option is given (unless the *-t* option is also supplied). *-a*:: Reset the trace for all existing buffer instances. When this option is used, the top level instance will not be reset unless *-t* is given. *-d*:: This option deletes the instance buffer(s) specified by the most recently preceding *-B* or *-a* option. Because the top-level instance buffer cannot be deleted, it is invalid to use this immediatly following *-t* or prior to any *-B* or *-a* option on the command line. *-t*:: Resets the top level instance buffer. Without the *-B* or *-a* option this is the same as the default. But if *-B* or *-a* is used, this is required if the top level instance buffer should also be reset. EXAMPLES -------- Reset tracing for instance-one and set its per-cpu buffer size to 4096kb. Also deletes instance-two. The top level instance and any other instances remain unaffected: trace-cmd reset -B instance-one -b 4096 -B instance-two -d Delete all instance buffers. Top level instance remains unaffected: trace-cmd reset -a -d Delete all instance buffers and also reset the top instance: trace-cmd reset -t -a -d Invalid. This command implies an attempt to delete the top instance: trace-cmd reset -a -t -d Reset the top instance and set its per-cpu buffer size to 1024kb. If any instance buffers exist, they will be unaffected: trace-cmd reset -b 1024 SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-restore.1.txt000066400000000000000000000077471351617527000224420ustar00rootroot00000000000000TRACE-CMD-RESTORE(1) ==================== NAME ---- trace-cmd-restore - restore a failed trace record SYNOPSIS -------- *trace-cmd restore* ['OPTIONS'] ['command'] cpu-file [cpu-file ...] DESCRIPTION ----------- The trace-cmd(1) restore command will restore a crashed trace-cmd-record(1) file. If for some reason a trace-cmd record fails, it will leave a the per-cpu data files and not create the final trace.dat file. The trace-cmd restore will append the files to create a working trace.dat file that can be read with trace-cmd-report(1). When trace-cmd record runs, it spawns off a process per CPU and writes to a per cpu file usually called 'trace.dat.cpuX', where X represents the CPU number that it is tracing. If the -o option was used in the trace-cmd record, then the CPU data files will have that name instead of the 'trace.dat' name. If a unexpected crash occurs before the tracing is finished, then the per CPU files will still exist but there will not be any trace.dat file to read from. trace-cmd restore will allow you to create a trace.dat file with the existing data files. OPTIONS ------- *-c*:: Create a partial trace.dat file from the machine, to be used with a full trace-cmd restore at another time. This option is useful for embedded devices. If a server contains the cpu files of a crashed trace-cmd record (or trace-cmd listen), trace-cmd restore can be executed on the embedded device with the -c option to get all the stored information of that embedded device. Then the file created could be copied to the server to run the trace-cmd restore there with the cpu files. If *-o* is not specified, then the file created will be called 'trace-partial.dat'. This is because the file is not a full version of something that trace-cmd-report(1) could use. *-t* tracing_dir:: Used with *-c*, it overrides the location to read the events from. By default, tracing information is read from the debugfs/tracing directory. *-t* will use that location instead. This can be useful if the trace.dat file to create is from another machine. Just tar -cvf events.tar debugfs/tracing and copy and untar that file locally, and use that directory instead. *-k* kallsyms:: Used with *-c*, it overrides where to read the kallsyms file from. By default, /proc/kallsyms is used. *-k* will override the file to read the kallsyms from. This can be useful if the trace.dat file to create is from another machine. Just copy the /proc/kallsyms file locally, and use *-k* to point to that file. *-o* output':: By default, trace-cmd restore will create a 'trace.dat' file (or 'trace-partial.dat' if *-c* is specified). You can specify a different file to write to with the *-o* option. *-i* input:: By default, trace-cmd restore will read the information of the current system to create the initial data stored in the 'trace.dat' file. If the crash was on another machine, then that machine should have the trace-cmd restore run with the *-c* option to create the trace.dat partial file. Then that file can be copied to the current machine where trace-cmd restore will use *-i* to load that file instead of reading from the current system. EXAMPLES -------- If a crash happened on another box, you could run: $ trace-cmd restore -c -o box-partial.dat Then on the server that has the cpu files: $ trace-cmd restore -i box-partial.dat trace.dat.cpu0 trace.dat.cpu1 This would create a trace.dat file for the embedded box. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-show.1.txt000066400000000000000000000053221351617527000217220ustar00rootroot00000000000000TRACE-CMD-SHOW(1) ================= NAME ---- trace-cmd-show - show the contents of the Ftrace Linux kernel tracing buffer. SYNOPSIS -------- *trace-cmd show* ['OPTIONS'] DESCRIPTION ----------- The trace-cmd(1) show displays the contents of one of the Ftrace Linux kernel tracing files: trace, snapshot, or trace_pipe. It is basically the equivalent of doing: cat /sys/kernel/debug/tracing/trace OPTIONS ------- *-p*:: Instead of displaying the contents of the "trace" file, use the "trace_pipe" file. The difference between the two is that the "trace" file is static. That is, if tracing is stopped, the "trace" file will show the same contents each time. The "trace_pipe" file is a consuming read, where a read of the file will consume the output of what was read and it will not read the same thing a second time even if tracing is stopped. This file als will block. If no data is available, trace-cmd show will stop and wait for data to appear. *-s*:: Instead of reading the "trace" file, read the snapshot file. The snapshot is made by an application writing into it and the kernel will perform as swap between the currently active buffer and the current snapshot buffer. If no more swaps are made, the snapshot will remain static. This is not a consuming read. *-c* 'cpu':: Read only the trace file for a specified CPU. *-f*:: Display the full path name of the file that is being displayed. *-B* 'buf':: If a buffer instance was created, then the *-B* option will access the files associated with the given buffer. *--tracing_on*:: Show if tracing is on for the given instance. *--current_tracer*:: Show what the current tracer is. *--buffer_size*:: Show the current buffer size (per-cpu) *--buffer_total_size*:: Show the total size of all buffers. *--ftrace_filter*:: Show what function filters are set. *--ftrace_notrace*:: Show what function disabled filters are set. *--ftrace_pid*:: Show the PIDs the function tracer is limited to (if any). *--graph_function*:: Show the functions that will be graphed. *--graph_notrace*:: Show the functions that will not be graphed. *--cpumask*:: Show the mask of CPUs that tracing will trace. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-snapshot.1.txt000066400000000000000000000032171351617527000226020ustar00rootroot00000000000000TRACE-CMD-SNAPSHOT(1) ===================== NAME ---- trace-cmd-snapshot - take, reset, free, or show a Ftrace kernel snapshot SYNOPSIS -------- *trace-cmd snapshot* ['OPTIONS'] DESCRIPTION ----------- The trace-cmd(1) snapshot controls or displays the Ftrace Linux kernel snapshot feature (if the kernel supports it). This is useful to "freeze" an instance of a live trace but without stopping the trace. trace-cmd start -p function trace-cmd snapshot -s trace-cmd snapshot [ dumps the content of buffer at 'trace-cmd snapshot -s' ] trace-cmd snapshot -s trace-cmd snapshot [ dumps the new content of the buffer at the last -s operation ] OPTIONS ------- *-s*:: Take a snapshot of the currently running buffer. *-r*:: Clear out the buffer. *-f*:: Free the snapshot buffer. The buffer takes up memory inside the kernel. It is best to free it when not in use. The first -s operation will allocate it if it is not already allocated. *-c* 'cpu':: Operate on a per cpu snapshot (may not be fully supported by all kernels) *-B* 'buf':: If a buffer instance was created, then the *-B* option will operate on the snapshot within the buffer. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-split.1.txt000066400000000000000000000062561351617527000221040ustar00rootroot00000000000000TRACE-CMD-SPLIT(1) ================== NAME ---- trace-cmd-split - split a trace.dat file into smaller files SYNOPSIS -------- *trace-cmd split* ['OPTIONS'] ['start-time' ['end-time']] DESCRIPTION ----------- The trace-cmd(1) split is used to break up a trace.dat into small files. The 'start-time' specifies where the new file will start at. Using 'trace-cmd-report(1)' and copying the time stamp given at a particular event, can be used as input for either 'start-time' or 'end-time'. The split will stop creating files when it reaches an event after 'end-time'. If only the end-time is needed, use 0.0 as the start-time. If start-time is left out, then the split will start at the beginning of the file. If end-time is left out, then split will continue to the end unless it meets one of the requirements specified by the options. OPTIONS ------- *-i* 'file':: If this option is not specified, then the split command will look for the file named 'trace.dat'. This options will allow the reading of another file other than 'trace.dat'. *-o* 'file':: By default, the split command will use the input file name as a basis of where to write the split files. The output file will be the input file with an attached \'.#\' to the end: trace.dat.1, trace.dat.2, etc. This option will change the name of the base file used. -o file will create file.1, file.2, etc. *-s* 'seconds':: This specifies how many seconds should be recorded before the new file should stop. *-m* 'milliseconds':: This specifies how many milliseconds should be recorded before the new file should stop. *-u* 'microseconds':: This specifies how many microseconds should be recorded before the new file should stop. *-e* 'events':: This specifies how many events should be recorded before the new file should stop. *-p* 'pages':: This specifies the number of pages that should be recorded before the new file should stop. Note: only one of *-p*, *-e*, *-u*, *-m*, *-s* may be specified at a time. If *-p* is specified, then *-c* is automatically set. *-r*:: This option causes the break up to repeat until end-time is reached (or end of the input if end-time is not specified). trace-cmd split -r -e 10000 This will break up trace.dat into several smaller files, each with at most 10,000 events in it. *-c*:: This option causes the above break up to be per CPU. trace-cmd split -c -p 10 This will create a file that has 10 pages per each CPU from the input. *-C* 'cpu':: This option will split for a single CPU. Only the cpu named will be extracted from the file. trace-cmd split -C 1 This will split out all the events for cpu 1 in the file. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-stack.1.txt000066400000000000000000000023001351617527000220400ustar00rootroot00000000000000TRACE-CMD-STACK(1) ================== NAME ---- trace-cmd-stack - read, enable or disable Ftrace Linux kernel stack tracing. SYNOPSIS -------- *trace-cmd stack* DESCRIPTION ----------- The trace-cmd(1) stack enables the Ftrace stack tracer within the kernel. The stack tracer enables the function tracer and at each function call within the kernel, the stack is checked. When a new maximum usage stack is discovered, it is recorded. When no option is used, the current stack is displayed. To enable the stack tracer, use the option *--start*, and to disable the stack tracer, use the option *--stop*. The output will be the maximum stack found since the start was enabled. Use *--reset* to reset the stack counter to zero. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-start.1.txt000066400000000000000000000023611351617527000220770ustar00rootroot00000000000000TRACE-CMD-START(1) ================== NAME ---- trace-cmd-start - start the Ftrace Linux kernel tracer without recording SYNOPSIS -------- *trace-cmd start* ['OPTIONS'] DESCRIPTION ----------- The trace-cmd(1) start enables all the Ftrace tracing the same way trace-cmd-record(1) does. The difference is that it does not run threads to create a trace.dat file. This is useful just to enable Ftrace and you are only interested in the trace after some event has occurred and the trace is stopped. Then the trace can be read straight from the Ftrace pseudo file system or can be extracted with trace-cmd-extract(1). OPTIONS ------- The options are the same as 'trace-cmd-record(1)', except that it does not take options specific to recording (*-s*, *-o*, *-F*, *-N*, and *-t*). SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-stat.1.txt000066400000000000000000000033571351617527000217230ustar00rootroot00000000000000TRACE-CMD-STAT(1) ================= NAME ---- trace-cmd-stat - show the status of the tracing (ftrace) system SYNOPSIS -------- *trace-cmd stat* DESCRIPTION ----------- The trace-cmd(1) stat displays the various status of the tracing (ftrace) system. The status that it shows is: *Tracer:* if one of the tracers (like function_graph) is active. Otherwise nothing is displayed. *Events:* Lists the events that are enable. *Event filters:* Shows any filters that are set for any events *Function filters:* Shows any filters for the function tracers *Graph functions:* Shows any functions that the function graph tracer should graph *Buffers:* Shows the trace buffer size if they have been expanded. By default, tracing buffers are in a compressed format until they are used. If they are compressed, the buffer display will not be shown. *Trace clock:* If the tracing clock is anything other than the default "local" it will be displayed. *Trace CPU mask:* If not all available CPUs are in the tracing CPU mask, then the tracing CPU mask will be displayed. *Trace max latency:* Shows the value of the trace max latency if it is other than zero. *Kprobes:* Shows any kprobes that are defined for tracing. *Uprobes:* Shows any uprobes that are defined for tracing. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2014 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-stop.1.txt000066400000000000000000000037711351617527000217350ustar00rootroot00000000000000TRACE-CMD-STOP(1) ================= NAME ---- trace-cmd-stop - stop the Ftrace Linux kernel tracer from writing to the ring buffer. SYNOPSIS -------- *trace-cmd stop* ['OPTIONS'] DESCRIPTION ----------- The trace-cmd(1) stop is a complement to 'trace-cmd-start(1)'. This will disable Ftrace from writing to the ring buffer. This does not stop the overhead that the tracing may incur. Only the updating of the ring buffer is disabled, the Ftrace tracing may still be inducing overhead. After stopping the trace, the 'trace-cmd-extract(1)' may strip out the data from the ring buffer and create a trace.dat file. The Ftrace pseudo file system may also be examined. To disable the tracing completely to remove the overhead it causes, use 'trace-cmd-reset(1)'. But after a reset is performed, the data that has been recorded is lost. OPTIONS ------- *-B* 'buffer-name':: If the kernel supports multiple buffers, this will stop the trace for only the given buffer. It does not affect any other buffer. This may be used multiple times to specify different buffers. When this option is used, the top level instance will not be stopped unless *-t* is given. *-a*:: Stop the trace for all existing buffer instances. When this option is used, the top level instance will not be stopped unless *-t* is given. *-t*:: Stops the top level instance buffer. Without the *-B* or *-a* option this is the same as the default. But if *-B* or *-a* is used, this is required if the top level instance buffer should also be stopped. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd-stream.1.txt000066400000000000000000000027031351617527000222350ustar00rootroot00000000000000TRACE-CMD-STREAM(1) =================== NAME ---- trace-cmd-stream - stream a trace to stdout as it is happening SYNOPSIS -------- *trace-cmd stream ['OPTIONS']* ['command'] DESCRIPTION ----------- The trace-cmd(1) stream will start tracing just like trace-cmd-record(1), except it will not record to a file and instead it will read the binary buffer as it is happening, convert it to a human readable format and write it to stdout. This is basically the same as trace-cmd-start(1) and then doing a trace-cmd-show(1) with the *-p* option. trace-cmd-stream is not as efficient as reading from the pipe file as most of the stream work is done in userspace. This is useful if it is needed to do the work mostly in userspace instead of the kernel, and stream also helps to debug trace-cmd-profile(1) which uses the stream code to perform the live data analysis for the profile. OPTIONS ------- These are the same as trace-cmd-record(1), except that it does not take the *-o* option. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2014 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd.1.txt000066400000000000000000000047121351617527000207460ustar00rootroot00000000000000TRACE-CMD(1) ============ NAME ---- trace-cmd - interacts with Ftrace Linux kernel internal tracer SYNOPSIS -------- *trace-cmd* 'COMMAND' ['OPTIONS'] DESCRIPTION ----------- The trace-cmd(1) command interacts with the Ftrace tracer that is built inside the Linux kernel. It interfaces with the Ftrace specific files found in the debugfs file system under the tracing directory. A 'COMMAND' must be specified to tell trace-cmd what to do. COMMANDS -------- record - record a live trace and write a trace.dat file to the local disk or to the network. report - reads a trace.dat file and converts the binary data to a ASCII text readable format. hist - show a histogram of the events. stat - show tracing (ftrace) status of the running system options - list the plugin options that are available to *report* start - start the tracing without recording to a trace.dat file. stop - stop tracing (only disables recording, overhead of tracer is still in effect) restart - restart tracing from a previous stop (only effects recording) extract - extract the data from the kernel buffer and create a trace.dat file. reset - disables all tracing and gives back the system performance. (clears all data from the kernel buffers) split - splits a trace.dat file into smaller files. list - list the available plugins or events that can be recorded. listen - open up a port to listen for remote tracing connections. restore - restore the data files of a crashed run of trace-cmd record stack - run and display the stack tracer check-events - parse format strings for all trace events and return whether all formats are parseable OPTIONS ------- *-h*, --help:: Display the help text. Other options see the man page for the corresponding command. SEE ALSO -------- trace-cmd-record(1), trace-cmd-report(1), trace-cmd-hist(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-restore(1), trace-cmd-stack(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1), trace-cmd.dat(5), trace-cmd-check-events(1) trace-cmd-stat(1) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). trace-cmd-2.8.3/Documentation/trace-cmd.dat.5.txt000066400000000000000000000167771351617527000215370ustar00rootroot00000000000000TRACE-CMD.DAT(5) ================ NAME ---- trace-cmd.dat - trace-cmd file format SYNOPSIS -------- *trace-cmd.dat* ignore DESCRIPTION ----------- The trace-cmd(1) utility produces a "trace.dat" file. The file may also be named anything depending if the user specifies a different output name, but it must have a certain binary format. The file is used by trace-cmd to save kernel traces into it and be able to extract the trace from it at a later point (see *trace-cmd-report(1)*). INITIAL FORMAT -------------- The first three bytes contain the magic value: 0x17 0x08 0x44 The next 7 bytes contain the characters: "tracing" The next set of characters contain a null '\0' terminated string that contains the version of the file (for example): "6\0" The next 1 byte contains the flags for the file endianess: 0 = little endian 1 = big endian The next byte contains the number of bytes per "long" value: 4 - 32-bit long values 8 - 64-bit long values Note: This is the long size of the target's userspace. Not the kernel space size. [ Now all numbers are written in file defined endianess. ] The next 4 bytes are a 32-bit word that defines what the traced host machine page size was. HEADER INFO FORMAT ------------------ Directly after the initial format comes information about the trace headers recorded from the target box. The next 12 bytes contain the string: "header_page\0" The next 8 bytes are a 64-bit word containing the size of the page header information stored next. The next set of data is of the size read from the previous 8 bytes, and contains the data retrieved from debugfs/tracing/events/header_page. Note: The size of the second field \fBcommit\fR contains the target kernel long size. For example: field: local_t commit; offset:8; \fBsize:8;\fR signed:1; shows the kernel has a 64-bit long. The next 13 bytes contain the string: "header_event\0" The next 8 bytes are a 64-bit word containing the size of the event header information stored next. The next set of data is of the size read from the previous 8 bytes and contains the data retrieved from debugfs/tracing/events/header_event. This data allows the trace-cmd tool to know if the ring buffer format of the kernel made any changes. FTRACE EVENT FORMATS -------------------- Directly after the header information comes the information about the Ftrace specific events. These are the events used by the Ftrace plugins and are not enabled by the event tracing. The next 4 bytes contain a 32-bit word of the number of Ftrace event format files that are stored in the file. For the number of times defined by the previous 4 bytes is the following: 8 bytes for the size of the Ftrace event format file. The Ftrace event format file copied from the target machine: debugfs/tracing/events/ftrace//format EVENT FORMATS ------------- Directly after the Ftrace formats comes the information about the event layout. The next 4 bytes are a 32-bit word containing the number of event systems that are stored in the file. These are the directories in debugfs/tracing/events excluding the \fBftrace\fR directory. For the number of times defined by the previous 4 bytes is the following: A null-terminated string containing the system name. 4 bytes containing a 32-bit word containing the number of events within the system. For the number of times defined in the previous 4 bytes is the following: 8 bytes for the size of the event format file. The event format file copied from the target machine: debugfs/tracing/events///format KALLSYMS INFORMATION -------------------- Directly after the event formats comes the information of the mapping of function addresses to the function names. The next 4 bytes are a 32-bit word containing the size of the data holding the function mappings. The next set of data is of the size defined by the previous 4 bytes and contains the information from the target machine's file: /proc/kallsyms TRACE_PRINTK INFORMATION ------------------------ If a developer used trace_printk() within the kernel, it may store the format string outside the ring buffer. This information can be found in: debugfs/tracing/printk_formats The next 4 bytes are a 32-bit word containing the size of the data holding the printk formats. The next set of data is of the size defined by the previous 4 bytes and contains the information from debugfs/tracing/printk_formats. PROCESS INFORMATION ------------------- Directly after the trace_printk formats comes the information mapping a PID to a process name. The next 8 bytes contain a 64-bit word that holds the size of the data mapping the PID to a process name. The next set of data is of the size defined by the previous 8 bytes and contains the information from debugfs/tracing/saved_cmdlines. REST OF TRACE-CMD HEADER ------------------------ Directly after the process information comes the last bit of the trace.dat file header. The next 4 bytes are a 32-bit word defining the number of CPUs that were discovered on the target machine (and has matching trace data for it). The next 10 bytes are one of the following: "options \0" "latency \0" "flyrecord\0" If it is "options \0" then: The next 2 bytes are a 16-bit word defining the current option. If the the value is zero then there are no more options. Otherwise, the next 4 bytes contain a 32-bit word containing the option size. If the reader does not know how to handle the option it can simply skip it. Currently there are no options defined, but this is here to extend the data. The next option will be directly after the previous option, and the options ends with a zero in the option type field. The next 10 bytes after the options are one of the following: "latency \0" "flyrecord\0" which would follow the same as if options were not present. If the value is "latency \0", then the rest of the file is simply ASCII text that was taken from the target's: debugfs/tracing/trace If the value is "flyrecord\0", the following is present: For the number of CPUs that were read earlier, the following is present: 8 bytes that are a 64-bit word containing the offset into the file that holds the data for the CPU. 8 bytes that are a 64-bit word containing the size of the CPU data at that offset. CPU DATA -------- The CPU data is located in the part of the file that is specified in the end of the header. Padding is placed between the header and the CPU data, placing the CPU data at a page aligned (target page) position in the file. This data is copied directly from the Ftrace ring buffer and is of the same format as the ring buffer specified by the event header files loaded in the header format file. The trace-cmd tool will try to \fBmmap(2)\fR the data page by page with the target's page size if possible. If it fails to mmap, it will just read the data instead. SEE ALSO -------- trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1), trace-cmd.dat(5) AUTHOR ------ Written by Steven Rostedt, RESOURCES --------- git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING ------- Copyright \(C) 2010 Red Hat, Inc. 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If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. trace-cmd-2.8.3/LICENSES/LGPL-2.1000066400000000000000000000654251351617527000155720ustar00rootroot00000000000000Valid-License-Identifier: LGPL-2.1 Valid-License-Identifier: LGPL-2.1+ SPDX-URL: https://spdx.org/licenses/LGPL-2.1.html Usage-Guide: To use this license in source code, put one of the following SPDX tag/value pairs into a comment according to the placement guidelines in the licensing rules documentation. 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To apply these terms, attach the following notices to the library. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. one line to give the library's name and an idea of what it does. Copyright (C) year name of author This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. 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Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the library `Frob' (a library for tweaking knobs) written by James Random Hacker. signature of Ty Coon, 1 April 1990 Ty Coon, President of Vice That's all there is to it! trace-cmd-2.8.3/Makefile000066400000000000000000000265231351617527000150420ustar00rootroot00000000000000# SPDX-License-Identifier: GPL-2.0 # trace-cmd version TC_VERSION = 2 TC_PATCHLEVEL = 8 TC_EXTRAVERSION = 3 TRACECMD_VERSION = $(TC_VERSION).$(TC_PATCHLEVEL).$(TC_EXTRAVERSION) export TC_VERSION export TC_PATCHLEVEL export TC_EXTRAVERSION export TRACECMD_VERSION # file format version FILE_VERSION = 6 MAKEFLAGS += --no-print-directory # Makefiles suck: This macro sets a default value of $(2) for the # variable named by $(1), unless the variable has been set by # environment or command line. This is necessary for CC and AR # because make sets default values, so the simpler ?= approach # won't work as expected. define allow-override $(if $(or $(findstring environment,$(origin $(1))),\ $(findstring command line,$(origin $(1)))),,\ $(eval $(1) = $(2))) endef # Allow setting CC and AR, or setting CROSS_COMPILE as a prefix. $(call allow-override,CC,$(CROSS_COMPILE)gcc) $(call allow-override,AR,$(CROSS_COMPILE)ar) EXT = -std=gnu99 INSTALL = install # Use DESTDIR for installing into a different root directory. # This is useful for building a package. The program will be # installed in this directory as if it was the root directory. # Then the build tool can move it later. DESTDIR ?= DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))' prefix ?= /usr/local bindir_relative = bin bindir = $(prefix)/$(bindir_relative) man_dir = $(prefix)/share/man man_dir_SQ = '$(subst ','\'',$(man_dir))' html_install = $(prefix)/share/kernelshark/html html_install_SQ = '$(subst ','\'',$(html_install))' img_install = $(prefix)/share/kernelshark/html/images img_install_SQ = '$(subst ','\'',$(img_install))' libdir ?= $(prefix)/lib libdir_SQ = '$(subst ','\'',$(libdir))' includedir = $(prefix)/include/trace-cmd includedir_SQ = '$(subst ','\'',$(includedir))' export man_dir man_dir_SQ html_install html_install_SQ INSTALL export img_install img_install_SQ export DESTDIR DESTDIR_SQ ifeq ($(prefix),$(HOME)) plugin_dir = $(HOME)/.trace-cmd/plugins python_dir = $(HOME)/.trace-cmd/python var_dir = $(HOME)/.trace-cmd/ else plugin_dir = $(libdir)/trace-cmd/plugins python_dir ?= $(libdir)/trace-cmd/python PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)" PYTHON_DIR = -DPYTHON_DIR="$(python_dir)" PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))' PYTHON_DIR_SQ = '$(subst ','\'',$(PYTHON_DIR))' var_dir = /var endif # Shell quotes bindir_SQ = $(subst ','\'',$(bindir)) bindir_relative_SQ = $(subst ','\'',$(bindir_relative)) plugin_dir_SQ = $(subst ','\'',$(plugin_dir)) python_dir_SQ = $(subst ','\'',$(python_dir)) VAR_DIR = -DVAR_DIR="$(var_dir)" VAR_DIR_SQ = '$(subst ','\'',$(VAR_DIR))' var_dir_SQ = '$(subst ','\'',$(var_dir))' HELP_DIR = -DHELP_DIR=$(html_install) HELP_DIR_SQ = '$(subst ','\'',$(HELP_DIR))' #' emacs highlighting gets confused by the above escaped quote. BASH_COMPLETE_DIR ?= /etc/bash_completion.d export PLUGIN_DIR export PYTHON_DIR export PYTHON_DIR_SQ export plugin_dir_SQ export python_dir_SQ export var_dir # copy a bit from Linux kbuild ifeq ("$(origin V)", "command line") VERBOSE = $(V) endif ifndef VERBOSE VERBOSE = 0 endif SWIG_DEFINED := $(shell if command -v swig; then echo 1; else echo 0; fi) ifeq ($(SWIG_DEFINED), 0) BUILD_PYTHON := report_noswig NO_PYTHON = 1 endif ifndef NO_PYTHON PYTHON := ctracecmd.so PYTHON_GUI := ctracecmd.so ctracecmdgui.so PYTHON_VERS ?= python # Can build python? ifeq ($(shell sh -c "pkg-config --cflags $(PYTHON_VERS) > /dev/null 2>&1 && echo y"), y) PYTHON_PLUGINS := plugin_python.so BUILD_PYTHON := $(PYTHON) $(PYTHON_PLUGINS) BUILD_PYTHON_WORKS := 1 else BUILD_PYTHON := report_nopythondev NO_PYTHON = 1 endif endif # NO_PYTHON export PYTHON_PLUGINS export BUILD_PYTHON_WORKS export NO_PYTHON # $(call test-build, snippet, ret) -> ret if snippet compiles # -> empty otherwise test-build = $(if $(shell sh -c 'echo "$(1)" | \ $(CC) -o /dev/null -c -x c - > /dev/null 2>&1 && echo y'), $2) UDIS86_AVAILABLE := $(call test-build,\#include , y) ifneq ($(strip $(UDIS86_AVAILABLE)), y) NO_UDIS86 := 1 endif ifndef NO_UDIS86 # have udis86 disassembler library? udis86-flags := -DHAVE_UDIS86 -ludis86 udis86-ldflags := -ludis86 endif # NO_UDIS86 define BLK_TC_FLUSH_SOURCE #include int main(void) { return BLK_TC_FLUSH; } endef # have flush/fua block layer instead of barriers? blk-flags := $(call test-build,$(BLK_TC_FLUSH_SOURCE),-DHAVE_BLK_TC_FLUSH) ifeq ("$(origin O)", "command line") saved-output := $(O) BUILD_OUTPUT := $(shell cd $(O) && /bin/pwd) $(if $(BUILD_OUTPUT),, \ $(error output directory "$(saved-output)" does not exist)) else BUILD_OUTPUT = $(CURDIR) endif srctree := $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR)) objtree := $(BUILD_OUTPUT) src := $(srctree) obj := $(objtree) kshark-dir = $(src)/kernel-shark export prefix bindir src obj LIBS = -ldl LIBTRACEEVENT_DIR = $(obj)/lib/traceevent LIBTRACEEVENT_STATIC = $(LIBTRACEEVENT_DIR)/libtraceevent.a LIBTRACEEVENT_SHARED = $(LIBTRACEEVENT_DIR)/libtraceevent.so LIBTRACECMD_DIR = $(obj)/lib/trace-cmd LIBTRACECMD_STATIC = $(LIBTRACECMD_DIR)/libtracecmd.a LIBTRACECMD_SHARED = $(LIBTRACECMD_DIR)/libtracecmd.so TRACE_LIBS = -L$(LIBTRACECMD_DIR) -ltracecmd -L$(LIBTRACEEVENT_DIR) -ltraceevent export LIBS TRACE_LIBS export LIBTRACEEVENT_DIR LIBTRACECMD_DIR export LIBTRACECMD_STATIC LIBTRACECMD_SHARED export LIBTRACEEVENT_STATIC LIBTRACEEVENT_SHARED export Q VERBOSE EXT # Include the utils include scripts/utils.mk INCLUDES = -I$(src)/include -I$(src)/../../include INCLUDES += -I$(src)/include/traceevent INCLUDES += -I$(src)/include/trace-cmd INCLUDES += -I$(src)/lib/traceevent/include INCLUDES += -I$(src)/lib/trace-cmd/include INCLUDES += -I$(src)/tracecmd/include INCLUDES += -I$(obj)/tracecmd/include include $(src)/features.mk # Set compile option CFLAGS if not set elsewhere CFLAGS ?= -g -Wall CPPFLAGS ?= LDFLAGS ?= export CFLAGS export INCLUDES # Required CFLAGS override CFLAGS += -D_GNU_SOURCE ifndef NO_PTRACE ifneq ($(call try-cc,$(SOURCE_PTRACE),),y) NO_PTRACE = 1 override CFLAGS += -DWARN_NO_PTRACE endif endif ifdef NO_PTRACE override CFLAGS += -DNO_PTRACE endif ifndef NO_AUDIT ifneq ($(call try-cc,$(SOURCE_AUDIT),-laudit),y) NO_AUDIT = 1 override CFLAGS += -DWARN_NO_AUDIT endif endif ifdef NO_AUDIT override CFLAGS += -DNO_AUDIT else LIBS += -laudit endif # Append required CFLAGS override CFLAGS += $(INCLUDES) $(PLUGIN_DIR_SQ) $(VAR_DIR) override CFLAGS += $(udis86-flags) $(blk-flags) override LDFLAGS += $(udis86-ldflags) CMD_TARGETS = trace-cmd $(BUILD_PYTHON) ### # Default we just build trace-cmd # # If you want kernelshark, then do: make gui ### all: all_cmd plugins show_gui_make all_cmd: $(CMD_TARGETS) CMAKE_COMMAND = /usr/bin/cmake $(kshark-dir)/build/Makefile: $(kshark-dir)/CMakeLists.txt $(Q) cd $(kshark-dir)/build && $(CMAKE_COMMAND) -D_INSTALL_PREFIX=$(prefix) .. gui: force $(CMD_TARGETS) $(kshark-dir)/build/Makefile $(Q)$(MAKE) $(S) -C $(kshark-dir)/build @echo "gui build complete" @echo " kernelshark located at $(kshark-dir)/bin" trace-cmd: force $(LIBTRACEEVENT_STATIC) $(LIBTRACECMD_STATIC) $(Q)$(MAKE) -C $(src)/tracecmd $(obj)/tracecmd/$@ $(LIBTRACEEVENT_SHARED): force $(Q)$(MAKE) -C $(src)/lib/traceevent $@ $(LIBTRACEEVENT_STATIC): force $(Q)$(MAKE) -C $(src)/lib/traceevent $@ $(LIBTRACECMD_STATIC): force $(obj)/plugins/trace_plugin_dir $(Q)$(MAKE) -C $(src)/lib/trace-cmd $@ $(LIBTRACECMD_SHARED): force $(obj)/plugins/trace_plugin_dir $(Q)$(MAKE) -C $(src)/lib/trace-cmd $@ libtraceevent.so: $(LIBTRACEEVENT_SHARED) libtraceevent.a: $(LIBTRACEEVENT_STATIC) libtracecmd.a: $(LIBTRACECMD_STATIC) libtracecmd.so: $(LIBTRACECMD_SHARED) libs: $(LIBTRACECMD_SHARED) $(LIBTRACEEVENT_SHARED) plugins: force $(obj)/plugins/trace_plugin_dir $(obj)/plugins/trace_python_dir $(Q)$(MAKE) -C $(src)/plugins $(obj)/plugins/trace_plugin_dir: force $(Q)$(MAKE) -C $(src)/plugins $@ $(obj)/plugins/trace_python_dir: force $(Q)$(MAKE) -C $(src)/plugins $@ show_gui_make: @echo "Note: to build the gui, type \"make gui\"" @echo " to build man pages, type \"make doc\"" PHONY += show_gui_make define find_tag_files find . -name '\.pc' -prune -o -name '*\.[ch]' -print -o -name '*\.[ch]pp' \ ! -name '\.#' -print endef tags: force $(RM) tags $(call find_tag_files) | xargs ctags --extra=+f --c-kinds=+px TAGS: force $(RM) TAGS $(call find_tag_files) | xargs etags cscope: force $(RM) cscope* $(call find_tag_files) | cscope -b -q install_plugins: force $(Q)$(MAKE) -C $(src)/plugins $@ install_python: force $(Q)$(MAKE) -C $(src)/python $@ install_bash_completion: force $(Q)$(call do_install_data,$(src)/tracecmd/trace-cmd.bash,$(BASH_COMPLETE_DIR)) install_cmd: all_cmd install_plugins install_python install_bash_completion $(Q)$(call do_install,$(obj)/tracecmd/trace-cmd,$(bindir_SQ)) install: install_cmd @echo "Note: to install the gui, type \"make install_gui\"" @echo " to install man pages, type \"make install_doc\"" install_gui: install_cmd gui $(Q)$(MAKE) $(S) -C $(kshark-dir)/build install install_libs: libs $(Q)$(call do_install,$(LIBTRACECMD_SHARED),$(libdir_SQ)) $(Q)$(call do_install,$(LIBTRACEEVENT_SHARED),$(libdir_SQ)) $(Q)$(call do_install,$(src)/include/traceevent/event-parse.h,$(includedir_SQ)/traceevent) $(Q)$(call do_install,$(src)/include/traceevent/trace-seq.h,$(includedir_SQ)/traceevent) $(Q)$(call do_install,$(src)/include/trace-cmd/trace-cmd.h,$(includedir_SQ)) $(Q)$(call do_install,$(src)/include/trace-cmd/trace-filter-hash.h,$(includedir_SQ)) doc: $(MAKE) -C $(src)/Documentation all doc_clean: $(MAKE) -C $(src)/Documentation clean install_doc: $(MAKE) -C $(src)/Documentation install clean: $(RM) *.o *~ *.a *.so .*.d $(RM) tags TAGS cscope* $(MAKE) -C $(src)/lib/traceevent clean $(MAKE) -C $(src)/lib/trace-cmd clean $(MAKE) -C $(src)/plugins clean $(MAKE) -C $(src)/python clean $(MAKE) -C $(src)/tracecmd clean if [ -f $(kshark-dir)/build/Makefile ]; then $(MAKE) -C $(kshark-dir)/build clean; fi ##### PYTHON STUFF ##### report_noswig: force $(Q)echo $(Q)echo " NO_PYTHON forced: swig not installed, not compiling python plugins" $(Q)echo report_nopythondev: force $(Q)echo $(Q)echo " python-dev is not installed, not compiling python plugins" $(Q)echo ifndef NO_PYTHON PYTHON_INCLUDES = `pkg-config --cflags $(PYTHON_VERS)` PYTHON_LDFLAGS = `pkg-config --libs $(PYTHON_VERS)` \ $(shell $(PYTHON_VERS)-config --ldflags) PYGTK_CFLAGS = `pkg-config --cflags pygtk-2.0` else PYTHON_INCLUDES = PYTHON_LDFLAGS = PYGTK_CFLAGS = endif export PYTHON_INCLUDES export PYTHON_LDFLAGS export PYGTK_CFLAGS ctracecmd.so: force $(LIBTRACECMD_STATIC) $(Q)$(MAKE) -C $(src)/python $@ ctracecmdgui.so: force $(LIBTRACECMD_STATIC) trace-view $(Q)$(MAKE) -C $(src)/python $@ PHONY += python python: $(PYTHON) PHONY += python-gui python-gui: $(PYTHON_GUI) PHONY += python-plugin python-plugin: $(PYTHON_PLUGINS) plugin_python.so: force $(obj)/plugins/trace_python_dir $(Q)$(MAKE) -C $(src)/plugins $(obj)/plugins/plugin_python.so dist: git archive --format=tar --prefix=trace-cmd-$(TRACECMD_VERSION)/ HEAD \ > ../trace-cmd-$(TRACECMD_VERSION).tar cat ../trace-cmd-$(TRACECMD_VERSION).tar | \ bzip2 -c9 > ../trace-cmd-$(TRACECMD_VERSION).tar.bz2 cat ../trace-cmd-$(TRACECMD_VERSION).tar | \ xz -e -c8 > ../trace-cmd-$(TRACECMD_VERSION).tar.xz PHONY += force force: # Declare the contents of the .PHONY variable as phony. We keep that # information in a variable so we can use it in if_changed and friends. .PHONY: $(PHONY) trace-cmd-2.8.3/README000066400000000000000000000022531351617527000142540ustar00rootroot00000000000000 Note: The official repositiory for trace-cmd and KernelShark is here: git://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git For bug reports and issues, please file it here: https://bugzilla.kernel.org/buglist.cgi?component=Trace-cmd%2FKernelshark&product=Tools&resolution=--- These files make up the code that create the trace-cmd programs. This includes the GUI interface application kernelshark as well as trace-graph and trace-view. These files also make up the code to create the libraries libtracecmd and libparsevent The applications are licensed under the GNU General Public License 2.0 (see COPYING) and the libraries are licensed under the GNU Lesser General Public License 2.1 (See COPYING.LIB). BUILDING: To make trace-cmd make To make the gui make gui INSTALL: To install trace-cmd make install To install the gui make install_gui Note: The default install is relative to /usr/local The default install directory is /usr/local/bin The default plugin directory is /usr/local/lib/trace-cmd/plugins To change the default, you can set 'prefix', eg mkdir $HOME/test-trace make prefix=$HOME/test-trace make prefix=$HOME/test-trace install trace-cmd-2.8.3/features.mk000066400000000000000000000023031351617527000155370ustar00rootroot00000000000000 # taken from perf which was based on Linux Kbuild # try-cc # Usage: option = $(call try-cc, source-to-build, cc-options) try-cc = $(shell sh -c \ 'TMP="$(BUILD_OUTPUT)$(TMPOUT).$$$$"; \ echo "$(1)" | \ $(CC) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y; \ rm -f "$$TMP"') define SOURCE_PTRACE #include #include int main (void) { int ret; ret = ptrace(PTRACE_ATTACH, 0, NULL, 0); ptrace(PTRACE_TRACEME, 0, NULL, 0); ptrace(PTRACE_GETSIGINFO, 0, NULL, NULL); ptrace(PTRACE_GETEVENTMSG, 0, NULL, NULL); ptrace(PTRACE_SETOPTIONS, NULL, NULL, PTRACE_O_TRACEFORK | PTRACE_O_TRACEVFORK | PTRACE_O_TRACECLONE | PTRACE_O_TRACEEXIT); ptrace(PTRACE_CONT, NULL, NULL, 0); ptrace(PTRACE_DETACH, 0, NULL, NULL); ptrace(PTRACE_SETOPTIONS, 0, NULL, PTRACE_O_TRACEFORK | PTRACE_O_TRACEVFORK | PTRACE_O_TRACECLONE | PTRACE_O_TRACEEXIT); return ret; } endef define SOURCE_AUDIT #include #include int main (void) { char *name; int ret; ret = audit_detect_machine(); if (ret < 0) return ret; name = audit_syscall_to_name(1, ret); if (!name) return -1; return ret; } endef trace-cmd-2.8.3/include/000077500000000000000000000000001351617527000150155ustar00rootroot00000000000000trace-cmd-2.8.3/include/linux/000077500000000000000000000000001351617527000161545ustar00rootroot00000000000000trace-cmd-2.8.3/include/linux/time64.h000066400000000000000000000004641351617527000174410ustar00rootroot00000000000000#ifndef _TOOLS_LINUX_TIME64_H #define _TOOLS_LINUX_TIME64_H #define MSEC_PER_SEC 1000L #define USEC_PER_MSEC 1000L #define NSEC_PER_USEC 1000L #define NSEC_PER_MSEC 1000000L #define USEC_PER_SEC 1000000L #define NSEC_PER_SEC 1000000000L #define FSEC_PER_SEC 1000000000000000LL #endif /* _LINUX_TIME64_H */ trace-cmd-2.8.3/include/trace-cmd/000077500000000000000000000000001351617527000166545ustar00rootroot00000000000000trace-cmd-2.8.3/include/trace-cmd/trace-cmd.h000066400000000000000000000354711351617527000206760ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2008, 2009, 2010 Red Hat Inc, Steven Rostedt * */ #ifndef _TRACE_CMD_H #define _TRACE_CMD_H #include "traceevent/event-parse.h" #define ARRAY_SIZE(_a) (sizeof(_a) / sizeof((_a)[0])) #define __weak __attribute__((weak)) #define __noreturn __attribute__((noreturn)) #define TRACECMD_ERR_MSK ((unsigned long)(-1) & ~((1UL << 14) - 1)) #define TRACECMD_ISERR(ptr) ((unsigned long)(ptr) > TRACECMD_ERR_MSK) #define TRACECMD_ERROR(ret) ((void *)((unsigned long)(ret) | TRACECMD_ERR_MSK)) #define TRACECMD_PTR2ERR(ptr) ((unisgned long)(ptr) & ~TRACECMD_ERR_MSK) void tracecmd_parse_cmdlines(struct tep_handle *pevent, char *file, int size); void tracecmd_parse_trace_clock(struct tep_handle *pevent, char *file, int size); void tracecmd_parse_proc_kallsyms(struct tep_handle *pevent, char *file, unsigned int size); void tracecmd_parse_ftrace_printk(struct tep_handle *pevent, char *file, unsigned int size); extern int tracecmd_disable_sys_plugins; extern int tracecmd_disable_plugins; struct tep_plugin_list; struct tep_plugin_list *tracecmd_load_plugins(struct tep_handle *pevent); void tracecmd_unload_plugins(struct tep_plugin_list *list, struct tep_handle *pevent); char **tracecmd_event_systems(const char *tracing_dir); char **tracecmd_system_events(const char *tracing_dir, const char *system); struct tep_handle *tracecmd_local_events(const char *tracing_dir); int tracecmd_fill_local_events(const char *tracing_dir, struct tep_handle *pevent, int *parsing_failures); char **tracecmd_local_plugins(const char *tracing_dir); char **tracecmd_add_list(char **list, const char *name, int len); void tracecmd_free_list(char **list); int *tracecmd_add_id(int *list, int id, int len); enum { RINGBUF_TYPE_PADDING = 29, RINGBUF_TYPE_TIME_EXTEND = 30, RINGBUF_TYPE_TIME_STAMP = 31, }; void tracecmd_record_ref(struct tep_record *record); void free_record(struct tep_record *record); struct tracecmd_input; struct tracecmd_output; struct tracecmd_recorder; struct hook_list; static inline int tracecmd_host_bigendian(void) { unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 }; unsigned int *ptr; ptr = (unsigned int *)str; return *ptr == 0x01020304; } /* tracecmd_get_tracing_dir must *not* be freed */ const char *tracecmd_get_tracing_dir(void); /* tracecmd_find_tracing_dir must be freed */ char *tracecmd_find_tracing_dir(void); /* --- Opening and Reading the trace.dat file --- */ enum { TRACECMD_OPTION_DONE, TRACECMD_OPTION_DATE, TRACECMD_OPTION_CPUSTAT, TRACECMD_OPTION_BUFFER, TRACECMD_OPTION_TRACECLOCK, TRACECMD_OPTION_UNAME, TRACECMD_OPTION_HOOK, TRACECMD_OPTION_OFFSET, TRACECMD_OPTION_CPUCOUNT, TRACECMD_OPTION_VERSION, }; enum { TRACECMD_FL_IGNORE_DATE = (1 << 0), TRACECMD_FL_BUFFER_INSTANCE = (1 << 1), TRACECMD_FL_LATENCY = (1 << 2), }; struct tracecmd_ftrace { struct tracecmd_input *handle; struct tep_event *fgraph_ret_event; int fgraph_ret_id; int long_size; }; typedef void (*tracecmd_show_data_func)(struct tracecmd_input *handle, struct tep_record *record); typedef void (*tracecmd_handle_init_func)(struct tracecmd_input *handle, struct hook_list *hook, int global); struct tracecmd_input *tracecmd_alloc(const char *file); struct tracecmd_input *tracecmd_alloc_fd(int fd); struct tracecmd_input *tracecmd_open(const char *file); struct tracecmd_input *tracecmd_open_fd(int fd); void tracecmd_ref(struct tracecmd_input *handle); void tracecmd_close(struct tracecmd_input *handle); int tracecmd_read_headers(struct tracecmd_input *handle); int tracecmd_get_parsing_failures(struct tracecmd_input *handle); int tracecmd_long_size(struct tracecmd_input *handle); int tracecmd_page_size(struct tracecmd_input *handle); int tracecmd_cpus(struct tracecmd_input *handle); int tracecmd_copy_headers(struct tracecmd_input *handle, int fd); void tracecmd_set_flag(struct tracecmd_input *handle, int flag); void tracecmd_clear_flag(struct tracecmd_input *handle, int flag); unsigned long tracecmd_get_flags(struct tracecmd_input *handle); int tracecmd_make_pipe(struct tracecmd_input *handle, int cpu, int fd, int cpus); int tracecmd_buffer_instances(struct tracecmd_input *handle); const char *tracecmd_buffer_instance_name(struct tracecmd_input *handle, int indx); struct tracecmd_input *tracecmd_buffer_instance_handle(struct tracecmd_input *handle, int indx); int tracecmd_is_buffer_instance(struct tracecmd_input *handle); void tracecmd_create_top_instance(char *name); void tracecmd_remove_instances(void); void tracecmd_set_ts_offset(struct tracecmd_input *handle, unsigned long long offset); void tracecmd_set_ts2secs(struct tracecmd_input *handle, unsigned long long hz); void tracecmd_print_events(struct tracecmd_input *handle, const char *regex); struct hook_list *tracecmd_hooks(struct tracecmd_input *handle); int tracecmd_init_data(struct tracecmd_input *handle); void tracecmd_print_stats(struct tracecmd_input *handle); void tracecmd_print_uname(struct tracecmd_input *handle); void tracecmd_print_version(struct tracecmd_input *handle); struct tep_record * tracecmd_read_page_record(struct tep_handle *pevent, void *page, int size, struct tep_record *last_record); struct tep_record * tracecmd_peek_data(struct tracecmd_input *handle, int cpu); static inline struct tep_record * tracecmd_peek_data_ref(struct tracecmd_input *handle, int cpu) { struct tep_record *rec = tracecmd_peek_data(handle, cpu); if (rec) rec->ref_count++; return rec; } struct tep_record * tracecmd_read_data(struct tracecmd_input *handle, int cpu); struct tep_record * tracecmd_read_prev(struct tracecmd_input *handle, struct tep_record *record); struct tep_record * tracecmd_read_next_data(struct tracecmd_input *handle, int *rec_cpu); struct tep_record * tracecmd_peek_next_data(struct tracecmd_input *handle, int *rec_cpu); struct tep_record * tracecmd_read_at(struct tracecmd_input *handle, unsigned long long offset, int *cpu); struct tep_record * tracecmd_translate_data(struct tracecmd_input *handle, void *ptr, int size); struct tep_record * tracecmd_read_cpu_first(struct tracecmd_input *handle, int cpu); struct tep_record * tracecmd_read_cpu_last(struct tracecmd_input *handle, int cpu); int tracecmd_refresh_record(struct tracecmd_input *handle, struct tep_record *record); int tracecmd_set_cpu_to_timestamp(struct tracecmd_input *handle, int cpu, unsigned long long ts); void tracecmd_set_all_cpus_to_timestamp(struct tracecmd_input *handle, unsigned long long time); int tracecmd_set_cursor(struct tracecmd_input *handle, int cpu, unsigned long long offset); unsigned long long tracecmd_get_cursor(struct tracecmd_input *handle, int cpu); int tracecmd_ftrace_overrides(struct tracecmd_input *handle, struct tracecmd_ftrace *finfo); struct tep_handle *tracecmd_get_pevent(struct tracecmd_input *handle); bool tracecmd_get_use_trace_clock(struct tracecmd_input *handle); tracecmd_show_data_func tracecmd_get_show_data_func(struct tracecmd_input *handle); void tracecmd_set_show_data_func(struct tracecmd_input *handle, tracecmd_show_data_func func); char *tracecmd_get_tracing_file(const char *name); void tracecmd_put_tracing_file(char *name); int tracecmd_record_at_buffer_start(struct tracecmd_input *handle, struct tep_record *record); unsigned long long tracecmd_page_ts(struct tracecmd_input *handle, struct tep_record *record); unsigned int tracecmd_record_ts_delta(struct tracecmd_input *handle, struct tep_record *record); #ifndef SWIG /* hack for function graph work around */ extern __thread struct tracecmd_input *tracecmd_curr_thread_handle; #endif /* --- Creating and Writing the trace.dat file --- */ struct tracecmd_event_list { struct tracecmd_event_list *next; const char *glob; }; struct tracecmd_option; struct tracecmd_msg_handle; struct tracecmd_output *tracecmd_create_file_latency(const char *output_file, int cpus); struct tracecmd_output *tracecmd_create_file(const char *output_file, int cpus, char * const *cpu_data_files); struct tracecmd_output * tracecmd_create_file_glob(const char *output_file, int cpus, char * const *cpu_data_files, struct tracecmd_event_list *event_globs); struct tracecmd_output * tracecmd_create_init_file_glob(const char *output_file, struct tracecmd_event_list *list); struct tracecmd_output *tracecmd_create_init_fd(int fd); struct tracecmd_output * tracecmd_create_init_fd_glob(int fd, struct tracecmd_event_list *list); struct tracecmd_output * tracecmd_create_init_fd_msg(struct tracecmd_msg_handle *msg_handle, struct tracecmd_event_list *list); struct tracecmd_output *tracecmd_create_init_file(const char *output_file); struct tracecmd_output *tracecmd_create_init_file_override(const char *output_file, const char *tracing_dir, const char *kallsyms); struct tracecmd_option *tracecmd_add_option(struct tracecmd_output *handle, unsigned short id, int size, const void *data); struct tracecmd_option *tracecmd_add_buffer_option(struct tracecmd_output *handle, const char *name, int cpus); int tracecmd_write_cpus(struct tracecmd_output *handle, int cpus); int tracecmd_write_options(struct tracecmd_output *handle); int tracecmd_update_option(struct tracecmd_output *handle, struct tracecmd_option *option, int size, const void *data); void tracecmd_output_close(struct tracecmd_output *handle); void tracecmd_output_free(struct tracecmd_output *handle); struct tracecmd_output *tracecmd_copy(struct tracecmd_input *ihandle, const char *file); int tracecmd_write_cpu_data(struct tracecmd_output *handle, int cpus, char * const *cpu_data_files); int tracecmd_append_cpu_data(struct tracecmd_output *handle, int cpus, char * const *cpu_data_files); int tracecmd_append_buffer_cpu_data(struct tracecmd_output *handle, struct tracecmd_option *option, int cpus, char * const *cpu_data_files); struct tracecmd_output *tracecmd_get_output_handle_fd(int fd); /* --- Reading the Fly Recorder Trace --- */ enum { TRACECMD_RECORD_NOSPLICE = (1 << 0), /* Use read instead of splice */ TRACECMD_RECORD_SNAPSHOT = (1 << 1), /* extract from snapshot */ TRACECMD_RECORD_BLOCK = (1 << 2), /* Block on splice write */ }; void tracecmd_free_recorder(struct tracecmd_recorder *recorder); struct tracecmd_recorder *tracecmd_create_recorder(const char *file, int cpu, unsigned flags); struct tracecmd_recorder *tracecmd_create_recorder_fd(int fd, int cpu, unsigned flags); struct tracecmd_recorder *tracecmd_create_recorder_maxkb(const char *file, int cpu, unsigned flags, int maxkb); struct tracecmd_recorder *tracecmd_create_buffer_recorder_fd(int fd, int cpu, unsigned flags, const char *buffer); struct tracecmd_recorder *tracecmd_create_buffer_recorder(const char *file, int cpu, unsigned flags, const char *buffer); struct tracecmd_recorder *tracecmd_create_buffer_recorder_maxkb(const char *file, int cpu, unsigned flags, const char *buffer, int maxkb); int tracecmd_start_recording(struct tracecmd_recorder *recorder, unsigned long sleep); void tracecmd_stop_recording(struct tracecmd_recorder *recorder); void tracecmd_stat_cpu(struct trace_seq *s, int cpu); long tracecmd_flush_recording(struct tracecmd_recorder *recorder); void tracecmd_filter_pid(int pid, int exclude); int tracecmd_add_event(const char *event_str, int stack); void tracecmd_enable_events(void); void tracecmd_disable_all_tracing(int disable_tracer); void tracecmd_disable_tracing(void); void tracecmd_enable_tracing(void); enum tracecmd_msg_flags { TRACECMD_MSG_FL_USE_TCP = 1 << 0, }; /* for both client and server */ struct tracecmd_msg_handle { int fd; short cpu_count; short version; /* Current protocol version */ unsigned long flags; bool done; }; struct tracecmd_msg_handle * tracecmd_msg_handle_alloc(int fd, unsigned long flags); /* Closes the socket and frees the handle */ void tracecmd_msg_handle_close(struct tracecmd_msg_handle *msg_handle); /* for clients */ int tracecmd_msg_send_init_data(struct tracecmd_msg_handle *msg_handle, unsigned int **client_ports); int tracecmd_msg_data_send(struct tracecmd_msg_handle *msg_handle, const char *buf, int size); int tracecmd_msg_finish_sending_data(struct tracecmd_msg_handle *msg_handle); int tracecmd_msg_send_close_msg(struct tracecmd_msg_handle *msg_handle); int tracecmd_msg_wait_close(struct tracecmd_msg_handle *msg_handle); /* for server */ int tracecmd_msg_initial_setting(struct tracecmd_msg_handle *msg_handle); int tracecmd_msg_send_port_array(struct tracecmd_msg_handle *msg_handle, int *ports); int tracecmd_msg_read_data(struct tracecmd_msg_handle *msg_handle, int ofd); int tracecmd_msg_collect_data(struct tracecmd_msg_handle *msg_handle, int ofd); bool tracecmd_msg_done(struct tracecmd_msg_handle *msg_handle); void tracecmd_msg_set_done(struct tracecmd_msg_handle *msg_handle); /* --- Plugin handling --- */ extern struct tep_plugin_option trace_ftrace_options[]; int trace_util_add_options(const char *name, struct tep_plugin_option *options); void trace_util_remove_options(struct tep_plugin_option *options); int trace_util_add_option(const char *name, const char *val); int trace_util_load_plugins(struct tep_handle *pevent, const char *suffix, int (*load_plugin)(struct tep_handle *pevent, const char *path, const char *name, void *data), void *data); struct tep_plugin_option *trace_util_read_plugin_options(void); void trace_util_free_options(struct tep_plugin_option *options); char **trace_util_find_plugin_files(const char *suffix); void trace_util_free_plugin_files(char **files); void trace_util_print_plugins(struct trace_seq *s, const char *prefix, const char *suffix, const struct tep_plugin_list *list); void trace_util_print_plugin_options(struct trace_seq *s); char **trace_util_list_plugin_options(void); void trace_util_free_plugin_options_list(char **list); const char *trace_util_plugin_option_value(const char *name); /* Used for trace-cmd list */ void tracecmd_ftrace_load_options(void); /* event hooks */ struct hook_list { struct hook_list *next; struct buffer_instance *instance; const char *hook; char *str; char *start_system; char *start_event; char *start_match; char *end_system; char *end_event; char *end_match; char *pid; int migrate; int global; int stack; }; struct hook_list *tracecmd_create_event_hook(const char *arg); void tracecmd_free_hooks(struct hook_list *hooks); /* --- Hack! --- */ int tracecmd_blk_hack(struct tracecmd_input *handle); /* --- Stack tracer functions --- */ int tracecmd_stack_tracer_status(int *status); /* --- Debugging --- */ struct kbuffer *tracecmd_record_kbuf(struct tracecmd_input *handle, struct tep_record *record); void *tracecmd_record_page(struct tracecmd_input *handle, struct tep_record *record); void *tracecmd_record_offset(struct tracecmd_input *handle, struct tep_record *record); #endif /* _TRACE_CMD_H */ trace-cmd-2.8.3/include/trace-cmd/trace-filter-hash.h000066400000000000000000000024171351617527000223330ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt * Copyright (C) 2018 VMware Inc, Steven Rostedt * */ #ifndef _TRACE_FILTER_HASH_H #define _TRACE_FILTER_HASH_H #include struct tracecmd_filter_id_item { struct tracecmd_filter_id_item *next; int id; }; struct tracecmd_filter_id { struct tracecmd_filter_id_item **hash; int count; }; struct tracecmd_filter_id_item * tracecmd_filter_id_find(struct tracecmd_filter_id *hash, int id); void tracecmd_filter_id_add(struct tracecmd_filter_id *hash, int id); void tracecmd_filter_id_remove(struct tracecmd_filter_id *hash, int id); void tracecmd_filter_id_clear(struct tracecmd_filter_id *hash); struct tracecmd_filter_id *tracecmd_filter_id_hash_alloc(void); void tracecmd_filter_id_hash_free(struct tracecmd_filter_id *hash); struct tracecmd_filter_id * tracecmd_filter_id_hash_copy(struct tracecmd_filter_id *hash); int *tracecmd_filter_ids(struct tracecmd_filter_id *hash); int tracecmd_filter_id_compare(struct tracecmd_filter_id *hash1, struct tracecmd_filter_id *hash2); static inline int tracecmd_filter_task_count(struct tracecmd_filter_id *hash) { return hash->count; } #endif /* _TRACE_FILTER_HASH_H */ trace-cmd-2.8.3/include/trace-cmd/trace-hash.h000066400000000000000000000027711351617527000210530ustar00rootroot00000000000000/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2014 Red Hat Inc, Steven Rostedt * */ #ifndef _TRACE_HASH_H #define _TRACE_HASH_H struct trace_hash_item { struct trace_hash_item *next; struct trace_hash_item *prev; unsigned long long key; }; struct trace_hash { struct trace_hash_item **buckets; int nr_buckets; int power; }; int trace_hash_init(struct trace_hash *hash, int buckets); void trace_hash_free(struct trace_hash *hash); int trace_hash_add(struct trace_hash *hash, struct trace_hash_item *item); int trace_hash_empty(struct trace_hash *hash); static inline void trace_hash_del(struct trace_hash_item *item) { struct trace_hash_item *prev = item->prev; prev->next = item->next; if (item->next) item->next->prev = prev; } #define trace_hash_for_each_bucket(bucket, hash) \ for (bucket = (hash)->buckets; \ (bucket) < (hash)->buckets + (hash)->nr_buckets; (bucket)++) #define trace_hash_for_each_item(item, bucket) \ for ((item = *(bucket)); item; item = (item)->next) #define trace_hash_for_each_item_safe(item, n, bucket) \ for ((item = *(bucket)), n = item ? item->next : NULL; item; \ item = n, n = item ? (item)->next : NULL) #define trace_hash_while_item(item, bucket) \ while ((item = *(bucket))) typedef int (*trace_hash_func)(struct trace_hash_item *item, void *data); struct trace_hash_item * trace_hash_find(struct trace_hash *hash, unsigned long long key, trace_hash_func match, void *data); #endif /* _TRACE_HASH_H */ trace-cmd-2.8.3/include/traceevent/000077500000000000000000000000001351617527000171555ustar00rootroot00000000000000trace-cmd-2.8.3/include/traceevent/event-parse.h000066400000000000000000000522101351617527000215570ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt * */ #ifndef _PARSE_EVENTS_H #define _PARSE_EVENTS_H #include #include #include #include #include #include "traceevent/trace-seq.h" #ifndef __maybe_unused #define __maybe_unused __attribute__((unused)) #endif #ifndef DEBUG_RECORD #define DEBUG_RECORD 0 #endif struct tep_record { unsigned long long ts; unsigned long long offset; long long missed_events; /* buffer dropped events before */ int record_size; /* size of binary record */ int size; /* size of data */ void *data; int cpu; int ref_count; int locked; /* Do not free, even if ref_count is zero */ void *priv; #if DEBUG_RECORD struct tep_record *prev; struct tep_record *next; long alloc_addr; #endif }; /* ----------------------- tep ----------------------- */ struct tep_handle; struct tep_event; typedef int (*tep_event_handler_func)(struct trace_seq *s, struct tep_record *record, struct tep_event *event, void *context); typedef int (*tep_plugin_load_func)(struct tep_handle *tep); typedef int (*tep_plugin_unload_func)(struct tep_handle *tep); struct tep_plugin_option { struct tep_plugin_option *next; void *handle; char *file; char *name; char *plugin_alias; char *description; const char *value; void *priv; int set; }; /* * Plugin hooks that can be called: * * TEP_PLUGIN_LOADER: (required) * The function name to initialized the plugin. * * int TEP_PLUGIN_LOADER(struct tep_handle *tep) * * TEP_PLUGIN_UNLOADER: (optional) * The function called just before unloading * * int TEP_PLUGIN_UNLOADER(struct tep_handle *tep) * * TEP_PLUGIN_OPTIONS: (optional) * Plugin options that can be set before loading * * struct tep_plugin_option TEP_PLUGIN_OPTIONS[] = { * { * .name = "option-name", * .plugin_alias = "override-file-name", (optional) * .description = "description of option to show users", * }, * { * .name = NULL, * }, * }; * * Array must end with .name = NULL; * * * .plugin_alias is used to give a shorter name to access * the vairable. Useful if a plugin handles more than one event. * * If .value is not set, then it is considered a boolean and only * .set will be processed. If .value is defined, then it is considered * a string option and .set will be ignored. * * TEP_PLUGIN_ALIAS: (optional) * The name to use for finding options (uses filename if not defined) */ #define TEP_PLUGIN_LOADER tep_plugin_loader #define TEP_PLUGIN_UNLOADER tep_plugin_unloader #define TEP_PLUGIN_OPTIONS tep_plugin_options #define TEP_PLUGIN_ALIAS tep_plugin_alias #define _MAKE_STR(x) #x #define MAKE_STR(x) _MAKE_STR(x) #define TEP_PLUGIN_LOADER_NAME MAKE_STR(TEP_PLUGIN_LOADER) #define TEP_PLUGIN_UNLOADER_NAME MAKE_STR(TEP_PLUGIN_UNLOADER) #define TEP_PLUGIN_OPTIONS_NAME MAKE_STR(TEP_PLUGIN_OPTIONS) #define TEP_PLUGIN_ALIAS_NAME MAKE_STR(TEP_PLUGIN_ALIAS) enum tep_format_flags { TEP_FIELD_IS_ARRAY = 1, TEP_FIELD_IS_POINTER = 2, TEP_FIELD_IS_SIGNED = 4, TEP_FIELD_IS_STRING = 8, TEP_FIELD_IS_DYNAMIC = 16, TEP_FIELD_IS_LONG = 32, TEP_FIELD_IS_FLAG = 64, TEP_FIELD_IS_SYMBOLIC = 128, }; struct tep_format_field { struct tep_format_field *next; struct tep_event *event; char *type; char *name; char *alias; int offset; int size; unsigned int arraylen; unsigned int elementsize; unsigned long flags; }; struct tep_format { int nr_common; int nr_fields; struct tep_format_field *common_fields; struct tep_format_field *fields; }; struct tep_print_arg_atom { char *atom; }; struct tep_print_arg_string { char *string; int offset; }; struct tep_print_arg_bitmask { char *bitmask; int offset; }; struct tep_print_arg_field { char *name; struct tep_format_field *field; }; struct tep_print_flag_sym { struct tep_print_flag_sym *next; char *value; char *str; }; struct tep_print_arg_typecast { char *type; struct tep_print_arg *item; }; struct tep_print_arg_flags { struct tep_print_arg *field; char *delim; struct tep_print_flag_sym *flags; }; struct tep_print_arg_symbol { struct tep_print_arg *field; struct tep_print_flag_sym *symbols; }; struct tep_print_arg_hex { struct tep_print_arg *field; struct tep_print_arg *size; }; struct tep_print_arg_int_array { struct tep_print_arg *field; struct tep_print_arg *count; struct tep_print_arg *el_size; }; struct tep_print_arg_dynarray { struct tep_format_field *field; struct tep_print_arg *index; }; struct tep_print_arg; struct tep_print_arg_op { char *op; int prio; struct tep_print_arg *left; struct tep_print_arg *right; }; struct tep_function_handler; struct tep_print_arg_func { struct tep_function_handler *func; struct tep_print_arg *args; }; enum tep_print_arg_type { TEP_PRINT_NULL, TEP_PRINT_ATOM, TEP_PRINT_FIELD, TEP_PRINT_FLAGS, TEP_PRINT_SYMBOL, TEP_PRINT_HEX, TEP_PRINT_INT_ARRAY, TEP_PRINT_TYPE, TEP_PRINT_STRING, TEP_PRINT_BSTRING, TEP_PRINT_DYNAMIC_ARRAY, TEP_PRINT_OP, TEP_PRINT_FUNC, TEP_PRINT_BITMASK, TEP_PRINT_DYNAMIC_ARRAY_LEN, TEP_PRINT_HEX_STR, }; struct tep_print_arg { struct tep_print_arg *next; enum tep_print_arg_type type; union { struct tep_print_arg_atom atom; struct tep_print_arg_field field; struct tep_print_arg_typecast typecast; struct tep_print_arg_flags flags; struct tep_print_arg_symbol symbol; struct tep_print_arg_hex hex; struct tep_print_arg_int_array int_array; struct tep_print_arg_func func; struct tep_print_arg_string string; struct tep_print_arg_bitmask bitmask; struct tep_print_arg_op op; struct tep_print_arg_dynarray dynarray; }; }; struct tep_print_fmt { char *format; struct tep_print_arg *args; }; struct tep_event { struct tep_handle *tep; char *name; int id; int flags; struct tep_format format; struct tep_print_fmt print_fmt; char *system; tep_event_handler_func handler; void *context; }; enum { TEP_EVENT_FL_ISFTRACE = 0x01, TEP_EVENT_FL_ISPRINT = 0x02, TEP_EVENT_FL_ISBPRINT = 0x04, TEP_EVENT_FL_ISFUNCENT = 0x10, TEP_EVENT_FL_ISFUNCRET = 0x20, TEP_EVENT_FL_NOHANDLE = 0x40, TEP_EVENT_FL_PRINTRAW = 0x80, TEP_EVENT_FL_FAILED = 0x80000000 }; enum tep_event_sort_type { TEP_EVENT_SORT_ID, TEP_EVENT_SORT_NAME, TEP_EVENT_SORT_SYSTEM, }; enum tep_event_type { TEP_EVENT_ERROR, TEP_EVENT_NONE, TEP_EVENT_SPACE, TEP_EVENT_NEWLINE, TEP_EVENT_OP, TEP_EVENT_DELIM, TEP_EVENT_ITEM, TEP_EVENT_DQUOTE, TEP_EVENT_SQUOTE, }; typedef unsigned long long (*tep_func_handler)(struct trace_seq *s, unsigned long long *args); enum tep_func_arg_type { TEP_FUNC_ARG_VOID, TEP_FUNC_ARG_INT, TEP_FUNC_ARG_LONG, TEP_FUNC_ARG_STRING, TEP_FUNC_ARG_PTR, TEP_FUNC_ARG_MAX_TYPES }; enum tep_flag { TEP_NSEC_OUTPUT = 1, /* output in NSECS */ TEP_DISABLE_SYS_PLUGINS = 1 << 1, TEP_DISABLE_PLUGINS = 1 << 2, }; #define TEP_ERRORS \ _PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \ _PE(PARSE_EVENT_FAILED, "failed to parse event"), \ _PE(READ_ID_FAILED, "failed to read event id"), \ _PE(READ_FORMAT_FAILED, "failed to read event format"), \ _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \ _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\ _PE(INVALID_ARG_TYPE, "invalid argument type"), \ _PE(INVALID_EXP_TYPE, "invalid expression type"), \ _PE(INVALID_OP_TYPE, "invalid operator type"), \ _PE(INVALID_EVENT_NAME, "invalid event name"), \ _PE(EVENT_NOT_FOUND, "no event found"), \ _PE(SYNTAX_ERROR, "syntax error"), \ _PE(ILLEGAL_RVALUE, "illegal rvalue"), \ _PE(ILLEGAL_LVALUE, "illegal lvalue for string comparison"), \ _PE(INVALID_REGEX, "regex did not compute"), \ _PE(ILLEGAL_STRING_CMP, "illegal comparison for string"), \ _PE(ILLEGAL_INTEGER_CMP,"illegal comparison for integer"), \ _PE(REPARENT_NOT_OP, "cannot reparent other than OP"), \ _PE(REPARENT_FAILED, "failed to reparent filter OP"), \ _PE(BAD_FILTER_ARG, "bad arg in filter tree"), \ _PE(UNEXPECTED_TYPE, "unexpected type (not a value)"), \ _PE(ILLEGAL_TOKEN, "illegal token"), \ _PE(INVALID_PAREN, "open parenthesis cannot come here"), \ _PE(UNBALANCED_PAREN, "unbalanced number of parenthesis"), \ _PE(UNKNOWN_TOKEN, "unknown token"), \ _PE(FILTER_NOT_FOUND, "no filter found"), \ _PE(NOT_A_NUMBER, "must have number field"), \ _PE(NO_FILTER, "no filters exists"), \ _PE(FILTER_MISS, "record does not match to filter") #undef _PE #define _PE(__code, __str) TEP_ERRNO__ ## __code enum tep_errno { TEP_ERRNO__SUCCESS = 0, TEP_ERRNO__FILTER_MATCH = TEP_ERRNO__SUCCESS, /* * Choose an arbitrary negative big number not to clash with standard * errno since SUS requires the errno has distinct positive values. * See 'Issue 6' in the link below. * * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html */ __TEP_ERRNO__START = -100000, TEP_ERRORS, __TEP_ERRNO__END, }; #undef _PE struct tep_plugin_list; #define INVALID_PLUGIN_LIST_OPTION ((char **)((unsigned long)-1)) struct tep_plugin_list *tep_load_plugins(struct tep_handle *tep); void tep_unload_plugins(struct tep_plugin_list *plugin_list, struct tep_handle *tep); char **tep_plugin_list_options(void); void tep_plugin_free_options_list(char **list); int tep_plugin_add_options(const char *name, struct tep_plugin_option *options); void tep_plugin_remove_options(struct tep_plugin_option *options); void tep_print_plugins(struct trace_seq *s, const char *prefix, const char *suffix, const struct tep_plugin_list *list); /* tep_handle */ typedef char *(tep_func_resolver_t)(void *priv, unsigned long long *addrp, char **modp); void tep_set_flag(struct tep_handle *tep, int flag); void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag); bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags); static inline int tep_is_bigendian(void) { unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 }; unsigned int val; memcpy(&val, str, 4); return val == 0x01020304; } /* taken from kernel/trace/trace.h */ enum trace_flag_type { TRACE_FLAG_IRQS_OFF = 0x01, TRACE_FLAG_IRQS_NOSUPPORT = 0x02, TRACE_FLAG_NEED_RESCHED = 0x04, TRACE_FLAG_HARDIRQ = 0x08, TRACE_FLAG_SOFTIRQ = 0x10, }; int tep_set_function_resolver(struct tep_handle *tep, tep_func_resolver_t *func, void *priv); void tep_reset_function_resolver(struct tep_handle *tep); int tep_register_comm(struct tep_handle *tep, const char *comm, int pid); int tep_override_comm(struct tep_handle *tep, const char *comm, int pid); int tep_register_trace_clock(struct tep_handle *tep, const char *trace_clock); int tep_register_function(struct tep_handle *tep, char *name, unsigned long long addr, char *mod); int tep_register_print_string(struct tep_handle *tep, const char *fmt, unsigned long long addr); bool tep_is_pid_registered(struct tep_handle *tep, int pid); void tep_print_event_task(struct tep_handle *tep, struct trace_seq *s, struct tep_event *event, struct tep_record *record); void tep_print_event_time(struct tep_handle *tep, struct trace_seq *s, struct tep_event *event, struct tep_record *record, bool use_trace_clock); void tep_print_event_data(struct tep_handle *tep, struct trace_seq *s, struct tep_event *event, struct tep_record *record); void tep_print_event(struct tep_handle *tep, struct trace_seq *s, struct tep_record *record, bool use_trace_clock); int tep_parse_header_page(struct tep_handle *tep, char *buf, unsigned long size, int long_size); enum tep_errno tep_parse_event(struct tep_handle *tep, const char *buf, unsigned long size, const char *sys); enum tep_errno tep_parse_format(struct tep_handle *tep, struct tep_event **eventp, const char *buf, unsigned long size, const char *sys); void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event, const char *name, struct tep_record *record, int *len, int err); int tep_get_field_val(struct trace_seq *s, struct tep_event *event, const char *name, struct tep_record *record, unsigned long long *val, int err); int tep_get_common_field_val(struct trace_seq *s, struct tep_event *event, const char *name, struct tep_record *record, unsigned long long *val, int err); int tep_get_any_field_val(struct trace_seq *s, struct tep_event *event, const char *name, struct tep_record *record, unsigned long long *val, int err); int tep_print_num_field(struct trace_seq *s, const char *fmt, struct tep_event *event, const char *name, struct tep_record *record, int err); int tep_print_func_field(struct trace_seq *s, const char *fmt, struct tep_event *event, const char *name, struct tep_record *record, int err); enum tep_reg_handler { TEP_REGISTER_SUCCESS = 0, TEP_REGISTER_SUCCESS_OVERWRITE, }; int tep_register_event_handler(struct tep_handle *tep, int id, const char *sys_name, const char *event_name, tep_event_handler_func func, void *context); int tep_unregister_event_handler(struct tep_handle *tep, int id, const char *sys_name, const char *event_name, tep_event_handler_func func, void *context); int tep_register_print_function(struct tep_handle *tep, tep_func_handler func, enum tep_func_arg_type ret_type, char *name, ...); int tep_unregister_print_function(struct tep_handle *tep, tep_func_handler func, char *name); struct tep_format_field *tep_find_common_field(struct tep_event *event, const char *name); struct tep_format_field *tep_find_field(struct tep_event *event, const char *name); struct tep_format_field *tep_find_any_field(struct tep_event *event, const char *name); const char *tep_find_function(struct tep_handle *tep, unsigned long long addr); unsigned long long tep_find_function_address(struct tep_handle *tep, unsigned long long addr); unsigned long long tep_read_number(struct tep_handle *tep, const void *ptr, int size); int tep_read_number_field(struct tep_format_field *field, const void *data, unsigned long long *value); struct tep_event *tep_get_first_event(struct tep_handle *tep); struct tep_event *tep_get_event(struct tep_handle *tep, int index); int tep_get_events_count(struct tep_handle *tep); struct tep_event *tep_find_event(struct tep_handle *tep, int id); struct tep_event * tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name); struct tep_event * tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record); void tep_data_latency_format(struct tep_handle *tep, struct trace_seq *s, struct tep_record *record); int tep_data_type(struct tep_handle *tep, struct tep_record *rec); int tep_data_pid(struct tep_handle *tep, struct tep_record *rec); int tep_data_preempt_count(struct tep_handle *tep, struct tep_record *rec); int tep_data_flags(struct tep_handle *tep, struct tep_record *rec); const char *tep_data_comm_from_pid(struct tep_handle *tep, int pid); struct tep_cmdline; struct tep_cmdline *tep_data_pid_from_comm(struct tep_handle *tep, const char *comm, struct tep_cmdline *next); int tep_cmdline_pid(struct tep_handle *tep, struct tep_cmdline *cmdline); void tep_print_field(struct trace_seq *s, void *data, struct tep_format_field *field); void tep_print_fields(struct trace_seq *s, void *data, int size __maybe_unused, struct tep_event *event); void tep_event_info(struct trace_seq *s, struct tep_event *event, struct tep_record *record); int tep_strerror(struct tep_handle *tep, enum tep_errno errnum, char *buf, size_t buflen); struct tep_event **tep_list_events(struct tep_handle *tep, enum tep_event_sort_type); struct tep_event **tep_list_events_copy(struct tep_handle *tep, enum tep_event_sort_type); struct tep_format_field **tep_event_common_fields(struct tep_event *event); struct tep_format_field **tep_event_fields(struct tep_event *event); enum tep_endian { TEP_LITTLE_ENDIAN = 0, TEP_BIG_ENDIAN }; int tep_get_cpus(struct tep_handle *tep); void tep_set_cpus(struct tep_handle *tep, int cpus); int tep_get_long_size(struct tep_handle *tep); void tep_set_long_size(struct tep_handle *tep, int long_size); int tep_get_page_size(struct tep_handle *tep); void tep_set_page_size(struct tep_handle *tep, int _page_size); bool tep_is_file_bigendian(struct tep_handle *tep); void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian); bool tep_is_local_bigendian(struct tep_handle *tep); void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian); bool tep_is_latency_format(struct tep_handle *tep); void tep_set_latency_format(struct tep_handle *tep, int lat); int tep_get_header_page_size(struct tep_handle *tep); int tep_get_header_timestamp_size(struct tep_handle *tep); bool tep_is_old_format(struct tep_handle *tep); void tep_set_print_raw(struct tep_handle *tep, int print_raw); void tep_set_test_filters(struct tep_handle *tep, int test_filters); struct tep_handle *tep_alloc(void); void tep_free(struct tep_handle *tep); void tep_ref(struct tep_handle *tep); void tep_unref(struct tep_handle *tep); int tep_get_ref(struct tep_handle *tep); /* access to the internal parser */ void tep_buffer_init(const char *buf, unsigned long long size); enum tep_event_type tep_read_token(char **tok); void tep_free_token(char *token); int tep_peek_char(void); const char *tep_get_input_buf(void); unsigned long long tep_get_input_buf_ptr(void); /* for debugging */ void tep_print_funcs(struct tep_handle *tep); void tep_print_printk(struct tep_handle *tep); /* ----------------------- filtering ----------------------- */ enum tep_filter_boolean_type { TEP_FILTER_FALSE, TEP_FILTER_TRUE, }; enum tep_filter_op_type { TEP_FILTER_OP_AND = 1, TEP_FILTER_OP_OR, TEP_FILTER_OP_NOT, }; enum tep_filter_cmp_type { TEP_FILTER_CMP_NONE, TEP_FILTER_CMP_EQ, TEP_FILTER_CMP_NE, TEP_FILTER_CMP_GT, TEP_FILTER_CMP_LT, TEP_FILTER_CMP_GE, TEP_FILTER_CMP_LE, TEP_FILTER_CMP_MATCH, TEP_FILTER_CMP_NOT_MATCH, TEP_FILTER_CMP_REGEX, TEP_FILTER_CMP_NOT_REGEX, }; enum tep_filter_exp_type { TEP_FILTER_EXP_NONE, TEP_FILTER_EXP_ADD, TEP_FILTER_EXP_SUB, TEP_FILTER_EXP_MUL, TEP_FILTER_EXP_DIV, TEP_FILTER_EXP_MOD, TEP_FILTER_EXP_RSHIFT, TEP_FILTER_EXP_LSHIFT, TEP_FILTER_EXP_AND, TEP_FILTER_EXP_OR, TEP_FILTER_EXP_XOR, TEP_FILTER_EXP_NOT, }; enum tep_filter_arg_type { TEP_FILTER_ARG_NONE, TEP_FILTER_ARG_BOOLEAN, TEP_FILTER_ARG_VALUE, TEP_FILTER_ARG_FIELD, TEP_FILTER_ARG_EXP, TEP_FILTER_ARG_OP, TEP_FILTER_ARG_NUM, TEP_FILTER_ARG_STR, }; enum tep_filter_value_type { TEP_FILTER_NUMBER, TEP_FILTER_STRING, TEP_FILTER_CHAR }; struct tep_filter_arg; struct tep_filter_arg_boolean { enum tep_filter_boolean_type value; }; struct tep_filter_arg_field { struct tep_format_field *field; }; struct tep_filter_arg_value { enum tep_filter_value_type type; union { char *str; unsigned long long val; }; }; struct tep_filter_arg_op { enum tep_filter_op_type type; struct tep_filter_arg *left; struct tep_filter_arg *right; }; struct tep_filter_arg_exp { enum tep_filter_exp_type type; struct tep_filter_arg *left; struct tep_filter_arg *right; }; struct tep_filter_arg_num { enum tep_filter_cmp_type type; struct tep_filter_arg *left; struct tep_filter_arg *right; }; struct tep_filter_arg_str { enum tep_filter_cmp_type type; struct tep_format_field *field; char *val; char *buffer; regex_t reg; }; struct tep_filter_arg { enum tep_filter_arg_type type; union { struct tep_filter_arg_boolean boolean; struct tep_filter_arg_field field; struct tep_filter_arg_value value; struct tep_filter_arg_op op; struct tep_filter_arg_exp exp; struct tep_filter_arg_num num; struct tep_filter_arg_str str; }; }; struct tep_filter_type { int event_id; struct tep_event *event; struct tep_filter_arg *filter; }; #define TEP_FILTER_ERROR_BUFSZ 1024 struct tep_event_filter { struct tep_handle *tep; int filters; struct tep_filter_type *event_filters; char error_buffer[TEP_FILTER_ERROR_BUFSZ]; }; struct tep_event_filter *tep_filter_alloc(struct tep_handle *tep); /* for backward compatibility */ #define FILTER_NONE TEP_ERRNO__NO_FILTER #define FILTER_NOEXIST TEP_ERRNO__FILTER_NOT_FOUND #define FILTER_MISS TEP_ERRNO__FILTER_MISS #define FILTER_MATCH TEP_ERRNO__FILTER_MATCH enum tep_errno tep_filter_add_filter_str(struct tep_event_filter *filter, const char *filter_str); enum tep_errno tep_filter_match(struct tep_event_filter *filter, struct tep_record *record); int tep_filter_strerror(struct tep_event_filter *filter, enum tep_errno err, char *buf, size_t buflen); int tep_event_filtered(struct tep_event_filter *filter, int event_id); void tep_filter_reset(struct tep_event_filter *filter); void tep_filter_free(struct tep_event_filter *filter); char *tep_filter_make_string(struct tep_event_filter *filter, int event_id); int tep_filter_remove_event(struct tep_event_filter *filter, int event_id); int tep_filter_copy(struct tep_event_filter *dest, struct tep_event_filter *source); int tep_filter_compare(struct tep_event_filter *filter1, struct tep_event_filter *filter2); #endif /* _PARSE_EVENTS_H */ trace-cmd-2.8.3/include/traceevent/kbuffer.h000066400000000000000000000034551351617527000207610ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2012 Red Hat Inc, Steven Rostedt * */ #ifndef _KBUFFER_H #define _KBUFFER_H #ifndef TS_SHIFT #define TS_SHIFT 27 #endif enum kbuffer_endian { KBUFFER_ENDIAN_BIG, KBUFFER_ENDIAN_LITTLE, }; enum kbuffer_long_size { KBUFFER_LSIZE_4, KBUFFER_LSIZE_8, }; enum { KBUFFER_TYPE_PADDING = 29, KBUFFER_TYPE_TIME_EXTEND = 30, KBUFFER_TYPE_TIME_STAMP = 31, }; struct kbuffer; struct kbuffer *kbuffer_alloc(enum kbuffer_long_size size, enum kbuffer_endian endian); void kbuffer_free(struct kbuffer *kbuf); int kbuffer_load_subbuffer(struct kbuffer *kbuf, void *subbuffer); void *kbuffer_read_event(struct kbuffer *kbuf, unsigned long long *ts); void *kbuffer_next_event(struct kbuffer *kbuf, unsigned long long *ts); unsigned long long kbuffer_timestamp(struct kbuffer *kbuf); unsigned long long kbuffer_subbuf_timestamp(struct kbuffer *kbuf, void *subbuf); unsigned int kbuffer_ptr_delta(struct kbuffer *kbuf, void *ptr); void *kbuffer_translate_data(int swap, void *data, unsigned int *size); void *kbuffer_read_at_offset(struct kbuffer *kbuf, int offset, unsigned long long *ts); int kbuffer_curr_index(struct kbuffer *kbuf); int kbuffer_curr_offset(struct kbuffer *kbuf); int kbuffer_curr_size(struct kbuffer *kbuf); int kbuffer_event_size(struct kbuffer *kbuf); int kbuffer_missed_events(struct kbuffer *kbuf); int kbuffer_subbuffer_size(struct kbuffer *kbuf); void kbuffer_set_old_format(struct kbuffer *kbuf); int kbuffer_start_of_data(struct kbuffer *kbuf); /* Debugging */ struct kbuffer_raw_info { int type; int length; unsigned long long delta; void *next; }; /* Read raw data */ struct kbuffer_raw_info *kbuffer_raw_get(struct kbuffer *kbuf, void *subbuf, struct kbuffer_raw_info *info); #endif /* _K_BUFFER_H */ trace-cmd-2.8.3/include/traceevent/trace-seq.h000066400000000000000000000026331351617527000212160ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt * */ #ifndef _TRACE_SEQ_H #define _TRACE_SEQ_H #include #include /* ----------------------- trace_seq ----------------------- */ #ifndef TRACE_SEQ_BUF_SIZE #define TRACE_SEQ_BUF_SIZE 4096 #endif enum trace_seq_fail { TRACE_SEQ__GOOD, TRACE_SEQ__BUFFER_POISONED, TRACE_SEQ__MEM_ALLOC_FAILED, }; /* * Trace sequences are used to allow a function to call several other functions * to create a string of data to use (up to a max of PAGE_SIZE). */ struct trace_seq { char *buffer; unsigned int buffer_size; unsigned int len; unsigned int readpos; enum trace_seq_fail state; }; void trace_seq_init(struct trace_seq *s); void trace_seq_reset(struct trace_seq *s); void trace_seq_destroy(struct trace_seq *s); extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...) __attribute__ ((format (printf, 2, 3))); extern int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args) __attribute__ ((format (printf, 2, 0))); extern int trace_seq_puts(struct trace_seq *s, const char *str); extern int trace_seq_putc(struct trace_seq *s, unsigned char c); extern void trace_seq_terminate(struct trace_seq *s); extern int trace_seq_do_fprintf(struct trace_seq *s, FILE *fp); extern int trace_seq_do_printf(struct trace_seq *s); #endif /* _TRACE_SEQ_H */ trace-cmd-2.8.3/include/version.h000066400000000000000000000004211351617527000166500ustar00rootroot00000000000000#ifndef _VERSION_H #define _VERSION_H #define VERSION(a, b) (((a) << 8) + (b)) #ifdef BUILDGUI #include "ks_version.h" #else #include "tc_version.h" #endif #define _STR(x) #x #define STR(x) _STR(x) #define FILE_VERSION_STRING STR(FILE_VERSION) #endif /* _VERSION_H */ trace-cmd-2.8.3/kernel-shark/000077500000000000000000000000001351617527000157605ustar00rootroot00000000000000trace-cmd-2.8.3/kernel-shark/CMakeLists.txt000066400000000000000000000051671351617527000205310ustar00rootroot00000000000000# Check if cmake has the required version cmake_minimum_required(VERSION 2.8.11 FATAL_ERROR) # Set the name and version of the project project(kernel-shark) set(KS_APP_NAME "kernelshark") set(KS_VERSION_MAJOR 0) set(KS_VERSION_MINOR 9) set(KS_VERSION_PATCH 8) set(KS_VERSION_STRING ${KS_VERSION_MAJOR}.${KS_VERSION_MINOR}.${KS_VERSION_PATCH}) message("\n project: Kernel Shark: (version: ${KS_VERSION_STRING})\n") set(KS_DIR ${CMAKE_SOURCE_DIR}) include(${KS_DIR}/build/FindTraceCmd.cmake) include(${KS_DIR}/build/FindJSONC.cmake) find_package(Doxygen) set(OpenGL_GL_PREFERENCE LEGACY) find_package(OpenGL) find_package(GLUT) find_package(Qt5Widgets 5.7.1) find_package(Qt5Network) if (Qt5Widgets_FOUND) message(STATUS "Found Qt5Widgets: (version ${Qt5Widgets_VERSION})") endif (Qt5Widgets_FOUND) set(LIBRARY_OUTPUT_PATH "${KS_DIR}/lib") set(EXECUTABLE_OUTPUT_PATH "${KS_DIR}/bin") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -g -pthread -fPIC") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -g -std=c++11 -pthread -fPIC") if(NOT _INSTALL_PREFIX) set(_INSTALL_PREFIX "/usr/local") endif() set(KS_PLUGIN_INSTALL_PREFIX ${_INSTALL_PREFIX}/lib/${KS_APP_NAME}/plugins/) set(KS_ICON ksharkicon.png) if (NOT _DEBUG) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2") endif (NOT _DEBUG) SET(CMAKE_INSTALL_RPATH "${_INSTALL_PREFIX}/lib/${KS_APP_NAME}/") SET(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE) include_directories(${KS_DIR}/src/ ${KS_DIR}/build/src/ ${JSONC_INCLUDE_DIR} ${TRACECMD_INCLUDE_DIR}) message("") message(STATUS "C flags : " ${CMAKE_C_FLAGS}) message(STATUS "CXX flags : " ${CMAKE_CXX_FLAGS}) message(STATUS "Linker flags : " ${CMAKE_EXE_LINKER_FLAGS}) add_subdirectory(${KS_DIR}/src) add_subdirectory(${KS_DIR}/examples) if (_DOXYGEN_DOC AND DOXYGEN_FOUND) message("\n doxygen documentation ...") add_custom_target(doc ALL) add_custom_command(TARGET doc COMMAND doxygen dox_config > dox_build.log WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/doc) set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES "${KS_DIR}/doc/dox_build.log" "${KS_DIR}/doc/html" "${KS_DIR}/doc/latex") endif () configure_file( ${KS_DIR}/build/ks.desktop.cmake ${KS_DIR}/${KS_APP_NAME}.desktop) configure_file( ${KS_DIR}/build/org.freedesktop.kshark-record.policy.cmake ${KS_DIR}/org.freedesktop.kshark-record.policy) message("") trace-cmd-2.8.3/kernel-shark/README000066400000000000000000000035701351617527000166450ustar00rootroot00000000000000 This directory contains the new Qt-based version of the KernelShark GUI. Third Party Software: ------------------------------------------------------------ KernelShark has the following external dependencies: Cmake, Json-C, OpenGL/Glut, Qt5Base. 1. In order to install the packages on Ubuntu do the following: sudo apt-get install build-essential git cmake libjson-c-dev -y sudo apt-get install freeglut3-dev libxmu-dev libxi-dev -y sudo apt-get install qtbase5-dev -y 1.1 I you want to be able to generate Doxygen documentation: sudo apt-get install graphviz doxygen-gui -y 2. In order to install the packages on Fedora, as root do the following: dnf install gcc gcc-c++ git cmake json-c-devel -y dnf install freeglut-devel redhat-rpm-config -y dnf install qt5-qtbase-devel -y 2.1 I you want to be able to generate Doxygen documentation: dnf install graphviz doxygen -y Building: ------------------------------------------------------------ 1. Follow the instructions given in trace-cmd/README and build the original trace-cmd end traceevent libraries. 2. Do: cd kernel-shark/build cmake ../ make 2.1.1 In order to create a Doxygen documentation add -D_DOXYGEN_DOC=1 as a CMake Command-Line option. 2.1.2 In order to generates complete debug information to be used by GDB add -D_DEBUG=1 as a CMake Command-Line option. 2.1.3 By default, installation prefix is "/usr/local". It can be changed using -D_INSTALL_PREFIX= as a CMake Command-Line option. Example: cmake -D_DOXYGEN_DOC=1 -D_DEBUG=1 -D_INSTALL_PREFIX=/usr ../ 2.2.1 Use "make clean" if you want to delete all already compiled objects. 2.2.2 Use the script "cmake_clean.sh" if you want to delete all already compiled objects and all files generated by CMake. 3. After building the code "kernel-shark/lib" will contain all libraries and "kernel-shark/bin" will contain all executables. trace-cmd-2.8.3/kernel-shark/bin/000077500000000000000000000000001351617527000165305ustar00rootroot00000000000000trace-cmd-2.8.3/kernel-shark/bin/kshark-su-record000077500000000000000000000002151351617527000216400ustar00rootroot00000000000000#!/bin/bash if [ $XDG_SESSION_TYPE = "wayland" ] then xhost +si:localuser:root &>/dev/null fi pkexec kshark-record -o ${PWD}/trace.dat trace-cmd-2.8.3/kernel-shark/build/000077500000000000000000000000001351617527000170575ustar00rootroot00000000000000trace-cmd-2.8.3/kernel-shark/build/FindJSONC.cmake000066400000000000000000000024171351617527000215420ustar00rootroot00000000000000# - Try to find json-c # https://cmake.org/Wiki/CMake:How_To_Find_Libraries # Once done this will define # JSONC_FOUND - System has json-c # JSONC_INCLUDE_DIRS - The json-c include directories # JSONC_LIBRARIES - The libraries needed to use json-c # JSONC_DEFINITIONS - Compiler switches required for using json-c find_package(PkgConfig) pkg_check_modules(PC_JSONC QUIET json-c) set(JSONC_DEFINITIONS ${PC_JSONC_CFLAGS_OTHER}) find_path(JSONC_INCLUDE_DIR json.h HINTS ${PC_JSONC_INCLUDEDIR} ${PC_JSONC_INCLUDE_DIRS} PATH_SUFFIXES json-c) find_library(JSONC_LIBRARY NAMES json-c libjson-c HINTS ${PC_JSONC_LIBDIR} ${PC_JSONC_LIBRARY_DIRS}) find_library(JSONC_LIBRARY NAMES json-c libjson-c HINTS ${PC_JSON-C_LIBDIR} ${PC_JSON-C_LIBRARY_DIRS}) include(FindPackageHandleStandardArgs) # handle the QUIETLY and REQUIRED arguments and set JSONC_FOUND to TRUE # if all listed variables are TRUE find_package_handle_standard_args(JSONC DEFAULT_MSG JSONC_LIBRARY JSONC_INCLUDE_DIR) if (NOT JSONC_FOUND) message(FATAL_ERROR "Json-C is Required!\n") endif (NOT JSONC_FOUND) mark_as_advanced(JSONC_INCLUDE_DIR JSONC_LIBRARY) set(JSONC_LIBRARIES ${JSONC_LIBRARY}) set(JSONC_INCLUDE_DIRS ${JSONC_INCLUDE_DIR}) trace-cmd-2.8.3/kernel-shark/build/FindTraceCmd.cmake000066400000000000000000000045551351617527000223550ustar00rootroot00000000000000# Find traceevent and trace-cmd # This module finds an installed trace-cmd package. # # It sets the following variables: # TRACEEVENT_LIBRARY, traceevent the library. # TRACEEVENT_FOUND, If false, do not try to use traceevent. # # TRACECMD_INCLUDE_DIR, where to find trace-cmd header. # TRACECMD_LIBRARY, the trace-cmd library. # TRACECMD_FOUND, If false, do not try to use trace-cmd. # MESSAGE(" Looking for trace-cmd ...") # First search in the user provided paths. find_path(TRACECMD_BIN_DIR NAMES trace-cmd PATHS $ENV{TRACE_CMD}/tracecmd/ ${CMAKE_SOURCE_DIR}/../tracecmd/ NO_DEFAULT_PATH) find_path(TRACECMD_INCLUDE_DIR NAMES trace-cmd/trace-cmd.h PATHS $ENV{TRACE_CMD}/include/ ${CMAKE_SOURCE_DIR}/../include/ NO_DEFAULT_PATH) find_library(TRACECMD_LIBRARY NAMES trace-cmd/libtracecmd.a PATHS $ENV{TRACE_CMD}/lib/ ${CMAKE_SOURCE_DIR}/../lib/ NO_DEFAULT_PATH) find_library(TRACEEVENT_LIBRARY NAMES traceevent/libtraceevent.a PATHS $ENV{TRACE_CMD}/lib/ ${CMAKE_SOURCE_DIR}/../lib/ NO_DEFAULT_PATH) # If not found, search in the default system paths. Note that if the previous # search was successful "find_path" will do nothing this time. find_path(TRACECMD_BIN_DIR NAMES trace-cmd) find_path(TRACECMD_INCLUDE_DIR NAMES trace-cmd/trace-cmd.h) find_library(TRACECMD_LIBRARY NAMES trace-cmd/libtracecmd.so) find_library(TRACEEVENT_LIBRARY NAMES traceevent/libtraceevent.so) IF (TRACECMD_INCLUDE_DIR AND TRACECMD_LIBRARY) SET(TRACECMD_FOUND TRUE) ENDIF (TRACECMD_INCLUDE_DIR AND TRACECMD_LIBRARY) IF (TRACECMD_FOUND) MESSAGE(STATUS "Found trace-cmd: ${TRACECMD_LIBRARY}") ELSE (TRACECMD_FOUND) MESSAGE(FATAL_ERROR "\nCould not find trace-cmd!\n") ENDIF (TRACECMD_FOUND) IF (TRACEEVENT_LIBRARY) SET(TRACEEVENT_FOUND TRUE) ENDIF (TRACEEVENT_LIBRARY) IF (TRACEEVENT_FOUND) MESSAGE(STATUS "Found traceevent: ${TRACEEVENT_LIBRARY}") ELSE (TRACEEVENT_FOUND) MESSAGE(FATAL_ERROR "\nCould not find libtraceevent!\n") ENDIF (TRACEEVENT_FOUND) trace-cmd-2.8.3/kernel-shark/build/cmake_clean.sh000077500000000000000000000004301351617527000216350ustar00rootroot00000000000000make clean rm CMakeCache.txt rm cmake_install.cmake rm Makefile rm -rf CMakeFiles/ rm -rf src/ rm -rf examples/ rm -f ../lib/* rm ../kernelshark.desktop rm ../org.freedesktop.kshark-record.policy rm -f ../src/KsCmakeDef.hpp rm -f CMakeDoxyfile.in rm -f CMakeDoxygenDefaults.cmake trace-cmd-2.8.3/kernel-shark/build/cmake_uninstall.sh000077500000000000000000000004771351617527000225770ustar00rootroot00000000000000#!/bin/bash CYAN='\e[36m' PURPLE='\e[35m' NC='\e[0m' # No Color if [[ $EUID -ne 0 ]]; then echo -e "${PURPLE}Permission denied${NC}" 1>&2 exit 100 fi if [ -e install_manifest.txt ] then echo -e "${CYAN}Uninstall the project...${NC}" xargs rm -v < install_manifest.txt rm -f install_manifest.txt fi trace-cmd-2.8.3/kernel-shark/build/deff.h.cmake000066400000000000000000000016671351617527000212250ustar00rootroot00000000000000 /** * \file KsCmakeDef.hpp * \brief This File is generated by CMAKE */ /* ! -- Do Not Hand Edit - This File is generated by CMAKE -- ! */ #ifndef _KS_CONFIG_H #define _KS_CONFIG_H /** KernelShark Version number. */ #cmakedefine KS_VERSION_STRING "@KS_VERSION_STRING@" /** KernelShark installation prefix path. */ #cmakedefine _INSTALL_PREFIX "@_INSTALL_PREFIX@" /** KernelShark plugins installation prefix path. */ #cmakedefine KS_PLUGIN_INSTALL_PREFIX "@KS_PLUGIN_INSTALL_PREFIX@" /** Location of the trace-cmd executable. */ #cmakedefine TRACECMD_BIN_DIR "@TRACECMD_BIN_DIR@" /** "pkexec" executable. */ #cmakedefine DO_AS_ROOT "@DO_AS_ROOT@" #ifdef __cplusplus #include /** * String containing semicolon-separated list of plugin names. * The plugins to be loaded when KernelShark starts are tagged * with "default". */ const QString plugins = "@PLUGINS@"; #endif /* __cplusplus */ #endif // _KS_CONFIG_H trace-cmd-2.8.3/kernel-shark/build/ks.desktop.cmake000066400000000000000000000003671351617527000221540ustar00rootroot00000000000000[Desktop Entry] Version=@KS_VERSION_STRING@ Type=Application Name=Kernel Shark GenericName=Kernel Shark Comment= Exec=@_INSTALL_PREFIX@/bin/@KS_APP_NAME@ Icon=@_INSTALL_PREFIX@/share/icons/@KS_APP_NAME@/@KS_ICON@ Categories=System; Terminal=false trace-cmd-2.8.3/kernel-shark/build/org.freedesktop.kshark-record.policy.cmake000066400000000000000000000013551351617527000272220ustar00rootroot00000000000000 Authentication is required to run KernelShark Record auth_admin auth_admin auth_admin @_INSTALL_PREFIX@/bin/kshark-record true trace-cmd-2.8.3/kernel-shark/doc/000077500000000000000000000000001351617527000165255ustar00rootroot00000000000000trace-cmd-2.8.3/kernel-shark/doc/dox_config000066400000000000000000000010511351617527000205640ustar00rootroot00000000000000# For detailed description of all Doxygen Configuration Parameters see: # http://www.doxygen.org/manual/config.html DOXYFILE_ENCODING = UTF-8 PROJECT_NAME = "kernel-shark" PROJECT_BRIEF = "Kernel Shark is a front-end reader of the Linux kernel tracing data." INPUT = ../src/ ../src/plugins/ SOURCE_BROWSER = YES QT_AUTOBRIEF = YES TAB_SIZE = 8 OPTIMIZE_OUTPUT_FOR_C = YES CASE_SENSE_NAMES = YES SORT_MEMBER_DOCS = NO STRICT_PROTO_MATCHING = YES DOT_MULTI_TARGETS = YES trace-cmd-2.8.3/kernel-shark/examples/000077500000000000000000000000001351617527000175765ustar00rootroot00000000000000trace-cmd-2.8.3/kernel-shark/examples/CMakeLists.txt000066400000000000000000000013141351617527000223350ustar00rootroot00000000000000message("\n examples ...") message(STATUS "dataload") add_executable(dload dataload.c) target_link_libraries(dload kshark) message(STATUS "datafilter") add_executable(dfilter datafilter.c) target_link_libraries(dfilter kshark) message(STATUS "datahisto") add_executable(dhisto datahisto.c) target_link_libraries(dhisto kshark) message(STATUS "confogio") add_executable(confio configio.c) target_link_libraries(confio kshark) message(STATUS "dataplot") add_executable(dplot dataplot.cpp) target_link_libraries(dplot kshark-plot) message(STATUS "widgetdemo") add_executable(widgetdemo widgetdemo.cpp) target_link_libraries(widgetdemo kshark-gui) trace-cmd-2.8.3/kernel-shark/examples/configio.c000066400000000000000000000032411351617527000215370ustar00rootroot00000000000000#include #include #include "libkshark.h" int main(int argc, char **argv) { struct kshark_config_doc *conf, *filter, *hello; struct kshark_context *kshark_ctx; int *ids = NULL, i; /* Create a new kshark session. */ kshark_ctx = NULL; if (!kshark_instance(&kshark_ctx)) return 1; if (argc == 1) { tracecmd_filter_id_add(kshark_ctx->show_task_filter, 314); tracecmd_filter_id_add(kshark_ctx->show_task_filter, 42); /* Create a new Confog. doc. */ conf = kshark_config_new("foo.bar.config", KS_CONFIG_JSON); /* Add filter's info. */ filter = kshark_export_all_filters(kshark_ctx, KS_CONFIG_JSON); kshark_config_doc_add(conf, "Filters" ,filter); /* Add "Hello Kernel" message. */ hello = kshark_string_config_alloc(); hello->conf_doc = "Hello Kernel"; kshark_config_doc_add(conf, "Message" ,hello); /* Save to file. */ kshark_save_config_file("conf.json", conf); } else { /* Open a Config. file. */ conf = kshark_open_config_file(argv[1], "foo.bar.config"); /* Retrieve the filter's info. */ filter = kshark_config_alloc(KS_CONFIG_JSON); if (kshark_config_doc_get(conf, "Filters" ,filter)) { kshark_import_all_filters(kshark_ctx, filter); /* Get the array of Ids to be fitered. */ ids = tracecmd_filter_ids(kshark_ctx->show_task_filter); for (i = 0; i < kshark_ctx->show_task_filter->count; ++i) printf("pid: %i\n", ids[i]); } /* Retrieve the message. */ hello = kshark_string_config_alloc(); if (kshark_config_doc_get(conf, "Message" ,hello)) puts((char *) hello->conf_doc); free(filter); free(hello); free(ids); } kshark_free_config_doc(conf); kshark_free(kshark_ctx); return 0; } trace-cmd-2.8.3/kernel-shark/examples/datafilter.c000066400000000000000000000066271351617527000220740ustar00rootroot00000000000000// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ // C #include #include // KernelShark #include "libkshark.h" const char *default_file = "trace.dat"; int main(int argc, char **argv) { ssize_t i, n_rows, n_tasks, n_evts, count; struct kshark_context *kshark_ctx; struct kshark_entry **data = NULL; struct tep_event_filter *adv_filter; struct tep_event *event; char *entry_str; bool status; int *pids; /* Create a new kshark session. */ kshark_ctx = NULL; if (!kshark_instance(&kshark_ctx)) return 1; /* Open a trace data file produced by trace-cmd. */ if (argc > 1) status = kshark_open(kshark_ctx, argv[1]); else status = kshark_open(kshark_ctx, default_file); if (!status) { kshark_free(kshark_ctx); return 1; } /* Load the content of the file into an array of entries. */ n_rows = kshark_load_data_entries(kshark_ctx, &data); if (n_rows < 1) { kshark_free(kshark_ctx); return 1; } /* Filter the trace data coming from trace-cmd. */ n_tasks = kshark_get_task_pids(kshark_ctx, &pids); for (i = 0; i < n_tasks; ++i) { const char *task_str = tep_data_comm_from_pid(kshark_ctx->pevent, pids[i]); if (strcmp(task_str, "trace-cmd") == 0) kshark_filter_add_id(kshark_ctx, KS_HIDE_TASK_FILTER, pids[i]); } free(pids); /* * Set the Filter Mask. In this case we want to avoid showing the * filterd entris in text format. */ kshark_ctx->filter_mask = KS_TEXT_VIEW_FILTER_MASK; kshark_filter_entries(kshark_ctx, data, n_rows); /* Print to the screen the first 10 visible entries. */ count = 0; i = 0; for (i = 0; i < n_rows; ++i) { if (data[i]->visible & KS_TEXT_VIEW_FILTER_MASK) { entry_str = kshark_dump_entry(data[i]); puts(entry_str); free(entry_str); if (++count > 10) break; } ++i; } puts("\n\n"); /* Show only "sched" events. */ n_evts = tep_get_events_count(kshark_ctx->pevent); for (i = 0; i < n_evts; ++i) { event = tep_get_event(kshark_ctx->pevent, i); if (strcmp(event->system, "sched") == 0) kshark_filter_add_id(kshark_ctx, KS_SHOW_EVENT_FILTER, event->id); } kshark_filter_entries(kshark_ctx, data, n_rows); /* Print to the screen the first 10 visible entries. */ count = 0; i = 0; for (i = 0; i < n_rows; ++i) { if (data[i]->visible & KS_TEXT_VIEW_FILTER_MASK) { entry_str = kshark_dump_entry(data[i]); puts(entry_str); free(entry_str); if (++count > 10) break; } ++i; } puts("\n\n"); /* Clear all filters. */ kshark_filter_clear(kshark_ctx, KS_HIDE_TASK_FILTER); kshark_filter_clear(kshark_ctx, KS_SHOW_EVENT_FILTER); /* Use the Advanced filter to do event content based filtering. */ adv_filter = kshark_ctx->advanced_event_filter; tep_filter_add_filter_str(adv_filter, "sched/sched_wakeup:target_cpu==1"); /* The Advanced filter requires reloading the data. */ for (i = 0; i < n_rows; ++i) free(data[i]); n_rows = kshark_load_data_entries(kshark_ctx, &data); count = 0; for (i = 0; i < n_rows; ++i) { if (data[i]->visible & KS_EVENT_VIEW_FILTER_MASK) { entry_str = kshark_dump_entry(data[i]); puts(entry_str); free(entry_str); if (++count > 10) break; } } /* Free the memory. */ for (i = 0; i < n_rows; ++i) free(data[i]); free(data); /* Close the file. */ kshark_close(kshark_ctx); /* Close the session. */ kshark_free(kshark_ctx); return 0; } trace-cmd-2.8.3/kernel-shark/examples/datahisto.c000066400000000000000000000067501351617527000217320ustar00rootroot00000000000000// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ // C #include #include // KernelShark #include "libkshark.h" #include "libkshark-model.h" #define N_BINS 5 const char *default_file = "trace.dat"; void dump_bin(struct kshark_trace_histo *histo, int bin, const char *type, int val) { const struct kshark_entry *e_front, *e_back; char *entry_str; ssize_t i_front, i_back; printf("bin %i {\n", bin); if (strcmp(type, "cpu") == 0) { e_front = ksmodel_get_entry_front(histo, bin, true, kshark_match_cpu, val, NULL, &i_front); e_back = ksmodel_get_entry_back(histo, bin, true, kshark_match_cpu, val, NULL, &i_back); } else if (strcmp(type, "task") == 0) { e_front = ksmodel_get_entry_front(histo, bin, true, kshark_match_pid, val, NULL, &i_front); e_back = ksmodel_get_entry_back(histo, bin, true, kshark_match_pid, val, NULL, &i_back); } else { i_front = ksmodel_first_index_at_bin(histo, bin); e_front = histo->data[i_front]; i_back = ksmodel_last_index_at_bin(histo, bin); e_back = histo->data[i_back]; } if (i_front == KS_EMPTY_BIN) { puts ("EMPTY BIN"); } else { entry_str = kshark_dump_entry(e_front); printf("%li -> %s\n", i_front, entry_str); free(entry_str); entry_str = kshark_dump_entry(e_back); printf("%li -> %s\n", i_back, entry_str); free(entry_str); } puts("}\n"); } void dump_histo(struct kshark_trace_histo *histo, const char *type, int val) { size_t bin; for (bin = 0; bin < histo->n_bins; ++bin) dump_bin(histo, bin, type, val); } int main(int argc, char **argv) { struct kshark_context *kshark_ctx; struct kshark_entry **data = NULL; struct kshark_trace_histo histo; ssize_t i, n_rows, n_tasks; bool status; int *pids; /* Create a new kshark session. */ kshark_ctx = NULL; if (!kshark_instance(&kshark_ctx)) return 1; /* Open a trace data file produced by trace-cmd. */ if (argc > 1) status = kshark_open(kshark_ctx, argv[1]); else status = kshark_open(kshark_ctx, default_file); if (!status) { kshark_free(kshark_ctx); return 1; } /* Load the content of the file into an array of entries. */ n_rows = kshark_load_data_entries(kshark_ctx, &data); if (n_rows < 1) { kshark_free(kshark_ctx); return 1; } /* Get a list of all tasks. */ n_tasks = kshark_get_task_pids(kshark_ctx, &pids); /* Initialize the Visualization Model. */ ksmodel_init(&histo); ksmodel_set_bining(&histo, N_BINS, data[0]->ts, data[n_rows - 1]->ts); /* Fill the model with data and calculate its state. */ ksmodel_fill(&histo, data, n_rows); /* Dump the raw bins. */ dump_histo(&histo, "", 0); puts("\n...\n\n"); /* * Change the state of the model. Do 50% Zoom-In and dump only CPU 0. */ ksmodel_zoom_in(&histo, .50, -1); dump_histo(&histo, "cpu", 0); puts("\n...\n\n"); /* Shift forward by two bins and this time dump only CPU 1. */ ksmodel_shift_forward(&histo, 2); dump_histo(&histo, "cpu", 1); puts("\n...\n\n"); /* * Do 10% Zoom-Out, using the last bin as a focal point. Dump the last * Task. */ ksmodel_zoom_out(&histo, .10, N_BINS - 1); dump_histo(&histo, "task", pids[n_tasks - 1]); /* Reset (clear) the model. */ ksmodel_clear(&histo); /* Free the memory. */ for (i = 0; i < n_rows; ++i) free(data[i]); free(data); /* Close the file. */ kshark_close(kshark_ctx); /* Close the session. */ kshark_free(kshark_ctx); return 0; } trace-cmd-2.8.3/kernel-shark/examples/dataload.c000066400000000000000000000033731351617527000215210ustar00rootroot00000000000000// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ // C #include #include // KernelShark #include "libkshark.h" const char *default_file = "trace.dat"; int main(int argc, char **argv) { struct kshark_context *kshark_ctx; struct kshark_entry **data = NULL; ssize_t r, n_rows, n_tasks; char *entry_str; bool status; int *pids; /* Create a new kshark session. */ kshark_ctx = NULL; if (!kshark_instance(&kshark_ctx)) return 1; /* Open a trace data file produced by trace-cmd. */ if (argc > 1) status = kshark_open(kshark_ctx, argv[1]); else status = kshark_open(kshark_ctx, default_file); if (!status) { kshark_free(kshark_ctx); return 1; } /* Load the content of the file into an array of entries. */ n_rows = kshark_load_data_entries(kshark_ctx, &data); if (n_rows < 1) { kshark_free(kshark_ctx); return 1; } /* Print to the screen the list of all tasks. */ n_tasks = kshark_get_task_pids(kshark_ctx, &pids); for (r = 0; r < n_tasks; ++r) { const char *task_str = tep_data_comm_from_pid(kshark_ctx->pevent, pids[r]); printf("task: %s-%i\n", task_str, pids[r]); } free(pids); puts("\n\n"); /* Print to the screen the first 10 entries. */ for (r = 0; r < 10; ++r) { entry_str = kshark_dump_entry(data[r]); puts(entry_str); free(entry_str); } puts("\n...\n"); /* Print the last 10 entries. */ for (r = n_rows - 10; r < n_rows; ++r) { entry_str = kshark_dump_entry(data[r]); puts(entry_str); free(entry_str); } /* Free the memory. */ for (r = 0; r < n_rows; ++r) free(data[r]); free(data); /* Close the file. */ kshark_close(kshark_ctx); /* Close the session. */ kshark_free(kshark_ctx); return 0; } trace-cmd-2.8.3/kernel-shark/examples/dataplot.cpp000066400000000000000000000116371351617527000221220ustar00rootroot00000000000000// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ // C #include // C++ #include #include // OpenGL #include // KernelShark #include "libkshark.h" #include "KsPlotTools.hpp" using namespace std; #define GRAPH_HEIGHT 40 // width of the graph in pixels #define GRAPH_H_MARGIN 50 // size of the white space surrounding the graph #define WINDOW_WIDTH 800 // width of the screen window in pixels #define WINDOW_HEIGHT 480 // height of the scrren window in pixels #define default_file (char*)"trace.dat" struct kshark_trace_histo histo; vector graphs; void usage(const char *prog) { cout << "Usage: " << prog << endl; cout << " -h Display this help message\n"; cout << " -s Draw shapes. This demonstrates how to draw simple " << "geom. shapes.\n"; cout << " -i Input file and draw animated graphs.\n"; cout << " No args. Import " << default_file << "and draw animated graphs.\n"; } /* An example function drawing something. */ void drawShapes() { /* Clear the screen. */ glClear(GL_COLOR_BUFFER_BIT); KsPlot::Triangle t; KsPlot::Point a(200, 100), b(200, 300), c(400, 100); t.setPoint(0, a); t.setPoint(1, b); t.setPoint(2, c); /* Set RGB color. */ t._color = {100, 200, 50}; t.draw(); KsPlot::Rectangle r; KsPlot::Point d(400, 200), e(400, 300), f(500, 300), g(500, 200); r.setPoint(0, d); r.setPoint(1, e); r.setPoint(2, f); r.setPoint(3, g); /* Set RGB color. */ r._color = {150, 50, 250}; r._size = 3; /* Do not fiil the rectangle. Draw the contour only. */ r.setFill(false); r.draw(); glFlush(); } /* An example function demonstrating Zoom In and Zoom Out. */ void play() { KsPlot::ColorTable taskColors = KsPlot::getTaskColorTable(); KsPlot::ColorTable cpuColors = KsPlot::getCPUColorTable(); vector::iterator it; vector CPUs, Tasks; bool zoomIn(true); int base; size_t i; CPUs = {3, 4, 6}; Tasks = {}; // Add valid pids here, if you want task plots. auto lamAddGraph = [&] (KsPlot::Graph *g) { /* Set the dimensions of the Graph. */ g->setHeight(GRAPH_HEIGHT); g->setHMargin(GRAPH_H_MARGIN); /* * Set the Y coordinate of the Graph's base. * Remember that the "Y" coordinate is inverted. */ base = 1.7 * GRAPH_HEIGHT * (i + 1); g->setBase(base); /* Add the Graph. */ graphs.push_back(g); }; for (i = 0; i < CPUs.size(); ++i) lamAddGraph(new KsPlot::Graph(&histo, &taskColors, &taskColors)); for (;i < CPUs.size() + Tasks.size(); ++i) lamAddGraph(new KsPlot::Graph(&histo, &taskColors, &cpuColors)); for (i = 1; i < 1000; ++i) { it = graphs.begin(); for (int const &cpu: CPUs) (*it++)->fillCPUGraph(cpu); for (int const &pid: Tasks) (*it++)->fillTaskGraph(pid); /* Clear the screen. */ glClear(GL_COLOR_BUFFER_BIT); /* Draw all graphs. */ for (auto &g: graphs) g->draw(); glFlush(); if (!(i % 250)) zoomIn = !zoomIn; if (zoomIn) ksmodel_zoom_in(&histo, .01, -1); else ksmodel_zoom_out(&histo, .01, -1); } } int main(int argc, char **argv) { struct kshark_context *kshark_ctx(nullptr); struct kshark_entry **data(nullptr); static char *input_file(nullptr); bool status, shapes(false); size_t r, nRows; int c, nBins; while ((c = getopt(argc, argv, "hsi:")) != -1) { switch(c) { case 'h': usage(argv[0]); return 1; case 'i': input_file = optarg; break; case 's': shapes = true; default: break; } } auto lamDraw = [&] (void (*func)(void)) { /* Initialize OpenGL/Glut. */ glutInit(&argc, argv); ksplot_make_scene(WINDOW_WIDTH, WINDOW_HEIGHT); ksplot_init_opengl(1); /* Display something. */ glutDisplayFunc(func); glutMainLoop(); }; if (shapes) { /* Draw simple shapes. */ lamDraw(drawShapes); return 0; } /* Create a new kshark session. */ if (!kshark_instance(&kshark_ctx)) return 1; /* Open a trace data file produced by trace-cmd. */ if (!input_file) input_file = default_file; status = kshark_open(kshark_ctx, input_file); if (!status) { kshark_free(kshark_ctx); usage(argv[0]); cerr << "\nFailed to open file " << input_file << endl; return 1; } /* Load the content of the file into an array of entries. */ nRows = kshark_load_data_entries(kshark_ctx, &data); /* Initialize the Visualization Model. */ ksmodel_init(&histo); nBins = WINDOW_WIDTH - 2 * GRAPH_HEIGHT; ksmodel_set_bining(&histo, nBins, data[0]->ts, data[nRows - 1]->ts); /* Fill the model with data and calculate its state. */ ksmodel_fill(&histo, data, nRows); /* Play animated Graph. */ lamDraw(play); /* Free the memory. */ for (auto &g: graphs) delete g; for (r = 0; r < nRows; ++r) free(data[r]); free(data); /* Reset (clear) the model. */ ksmodel_clear(&histo); /* Close the file. */ kshark_close(kshark_ctx); /* Close the session. */ kshark_free(kshark_ctx); return 0; } trace-cmd-2.8.3/kernel-shark/examples/widgetdemo.cpp000066400000000000000000000060211351617527000224310ustar00rootroot00000000000000// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ // C #include #include #include // C++ #include // Qt #include // KernelShark #include "KsUtils.hpp" #include "KsWidgetsLib.hpp" #define default_input_file (char*)"trace.dat" static char *input_file = nullptr; using namespace std; void usage(const char *prog) { cout << "Usage: " << prog << endl << " -h Display this help message\n" << " -v Display version and exit\n" << " -i input_file, default is " << default_input_file << endl << " -p register plugin, use plugin name, absolute or relative path\n" << " -u unregister plugin, use plugin name or absolute path\n"; } struct TaskPrint : public QObject { tep_handle *_pevent; void print(QVector pids) { for (auto const &pid: pids) cout << "task: " << tep_data_comm_from_pid(_pevent, pid) << " pid: " << pid << endl; } }; int main(int argc, char **argv) { kshark_context *kshark_ctx(nullptr); QApplication a(argc, argv); KsPluginManager plugins; KsDataStore data; size_t nRows(0); int c; if (!kshark_instance(&kshark_ctx)) return 1; while ((c = getopt(argc, argv, "hvi:p:u:")) != -1) { switch(c) { case 'v': printf("kshark-gui %s\n", KS_VERSION_STRING); return 0; case 'i': input_file = optarg; break; case 'p': plugins.registerPlugin(QString(optarg)); break; case 'u': plugins.unregisterPlugin(QString(optarg)); break; case 'h': usage(argv[0]); return 0; } } if (!input_file) { struct stat st; if (stat(default_input_file, &st) == 0) input_file = default_input_file; } if (input_file) { data.loadDataFile(input_file); nRows = data.size(); } else { cerr << "No input file is provided.\n"; } cout << nRows << " entries loaded\n"; auto lamPrintPl = [&]() { kshark_plugin_list *pl; for (pl = kshark_ctx->plugins; pl; pl = pl->next) cout << pl->file << endl; }; cout << "\n\n"; lamPrintPl(); sleep(1); QVector registeredPlugins; QStringList pluginsList; pluginsList << plugins._ksPluginList << plugins._userPluginList; registeredPlugins << plugins._registeredKsPlugins << plugins._registeredUserPlugins; KsCheckBoxWidget *pluginCBD = new KsPluginCheckBoxWidget(pluginsList); pluginCBD->set(registeredPlugins); KsCheckBoxDialog *dialog1 = new KsCheckBoxDialog(pluginCBD); QObject::connect(dialog1, &KsCheckBoxDialog::apply, &plugins, &KsPluginManager::updatePlugins); dialog1->show(); a.exec(); cout << "\n\nYou selected\n"; lamPrintPl(); sleep(1); if (!nRows) return 1; KsCheckBoxWidget *tasks_cbd = new KsTasksCheckBoxWidget(data.tep(), true); tasks_cbd->setDefault(false); TaskPrint p; p._pevent = data.tep(); KsCheckBoxDialog *dialog2 = new KsCheckBoxDialog(tasks_cbd); QObject::connect(dialog2, &KsCheckBoxDialog::apply, &p, &TaskPrint::print); cout << "\n\nYou selected\n"; dialog2->show(); a.exec(); return 0; } trace-cmd-2.8.3/kernel-shark/icons/000077500000000000000000000000001351617527000170735ustar00rootroot00000000000000trace-cmd-2.8.3/kernel-shark/icons/ksharkicon.png000066400000000000000000002351321351617527000217430ustar00rootroot00000000000000PNG  IHDR' 7bKGD pHYs  tIME %fiTXtCommentCreated with GIMPd.e IDATxyUY{ gs ZOOHDA]HJ;E)SB%񐸂I%8ƔcJD B$_o oOcsv'9oZwmI)`<Ɨ0s<߱b5'v7G6;Õ`3Kqa47Mnݩ4cDDJ)F/$97B2cGMMqm7^ן}TW'< _CX/XyX݅ƻ}Auv‘5z>1Fю' >l޾[4;ST㠍h4ZkJ)#H-҅#'XydzeO-RHaç_m<?up{?;UeY)JuTU0_]ZS.z.ڶ(to7Hm@DS D % DHłxTsS,^tc4 HS~Y>2S2}L?NM)= |$;uy*?Xz}v_cyBMD"1'),.yTi ʣK\#BE Q!!^!Khh4)%B (fJP/"R*V׏к1{s4i Ӏߙҍ;BkgL))W^y ~ ߹Zע1oTih" JGDC۶RC"jA$ZbR4Z[LG-1F-(ĈI%Jc1Z)і&vK׎穋V"uoH< V,UUх:^{nE [*y/Q}ˉsQw|[c iCg<`RDvYVtH"tQHPT e#b=>MRGYZlYB")hkL7S m!D) )H`J UP:A\PlY4V+k OJ}P1aPSJܥ/`<XÏ~pIv1MMVD:z^Ghр"ER m 0'3Zm={T=\ wı#N=5EO$X]\GJ#1ĄE(SfZ[&ô5 RN1eBPմQ8"$N7u:aZԪ:/p !5S6G_&H; 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)D d׶I)50&6 7k2px]vn}O/!n]+ow`!IENDB`trace-cmd-2.8.3/kernel-shark/src/000077500000000000000000000000001351617527000165475ustar00rootroot00000000000000trace-cmd-2.8.3/kernel-shark/src/CMakeLists.txt000066400000000000000000000102201351617527000213020ustar00rootroot00000000000000message("\n src ...") message(STATUS "libkshark") add_library(kshark SHARED libkshark.c libkshark-model.c libkshark-plugin.c libkshark-configio.c libkshark-collection.c) target_link_libraries(kshark ${CMAKE_DL_LIBS} ${JSONC_LIBRARY} ${TRACEEVENT_LIBRARY} ${TRACECMD_LIBRARY}) set_target_properties(kshark PROPERTIES SUFFIX ".so.${KS_VERSION_STRING}") if (OPENGL_FOUND AND GLUT_FOUND) message(STATUS "libkshark-plot") add_library(kshark-plot SHARED libkshark-plot.c KsPlotTools.cpp) target_link_libraries(kshark-plot kshark ${OPENGL_LIBRARIES} ${GLUT_LIBRARY}) set_target_properties(kshark-plot PROPERTIES SUFFIX ".so.${KS_VERSION_STRING}") endif (OPENGL_FOUND AND GLUT_FOUND) if (Qt5Widgets_FOUND AND Qt5Network_FOUND) message(STATUS "libkshark-gui") set (ks-guiLib_hdr KsUtils.hpp KsModels.hpp KsGLWidget.hpp KsSearchFSM.hpp KsDualMarker.hpp KsWidgetsLib.hpp KsTraceGraph.hpp KsTraceViewer.hpp KsMainWindow.hpp KsCaptureDialog.hpp KsQuickContextMenu.hpp KsAdvFilteringDialog.hpp) QT5_WRAP_CPP(ks-guiLib_hdr_moc ${ks-guiLib_hdr}) add_library(kshark-gui SHARED ${ks-guiLib_hdr_moc} KsUtils.cpp KsModels.cpp KsSession.cpp KsGLWidget.cpp KsSearchFSM.cpp KsDualMarker.cpp KsWidgetsLib.cpp KsTraceGraph.cpp KsTraceViewer.cpp KsMainWindow.cpp KsCaptureDialog.cpp KsQuickContextMenu.cpp KsAdvFilteringDialog.cpp) target_link_libraries(kshark-gui kshark-plot ${CMAKE_DL_LIBS} ${TRACEEVENT_LIBRARY} ${TRACECMD_LIBRARY} Qt5::Widgets Qt5::Network) set_target_properties(kshark-gui PROPERTIES SUFFIX ".so.${KS_VERSION_STRING}") message(STATUS ${KS_APP_NAME}) add_executable(${KS_APP_NAME} kernelshark.cpp) target_link_libraries(${KS_APP_NAME} kshark-gui) message(STATUS "kshark-record") add_executable(kshark-record kshark-record.cpp) target_link_libraries(kshark-record kshark-gui) install(TARGETS ${KS_APP_NAME} kshark-record kshark kshark-plot kshark-gui RUNTIME DESTINATION ${_INSTALL_PREFIX}/bin/ LIBRARY DESTINATION ${_INSTALL_PREFIX}/lib/${KS_APP_NAME}/) install(FILES "${KS_DIR}/${KS_APP_NAME}.desktop" DESTINATION ${_INSTALL_PREFIX}/share/applications/) install(FILES "${KS_DIR}/icons/${KS_ICON}" DESTINATION ${_INSTALL_PREFIX}/share/icons/${KS_APP_NAME}) install(FILES "${KS_DIR}/org.freedesktop.kshark-record.policy" DESTINATION ${_INSTALL_PREFIX}/share/polkit-1/actions/) install(PROGRAMS "${KS_DIR}/bin/kshark-su-record" DESTINATION ${_INSTALL_PREFIX}/bin/) endif (Qt5Widgets_FOUND AND Qt5Network_FOUND) add_subdirectory(plugins) find_program(DO_AS_ROOT pkexec) configure_file( ${KS_DIR}/build/deff.h.cmake ${KS_DIR}/src/KsCmakeDef.hpp) trace-cmd-2.8.3/kernel-shark/src/KsAdvFilteringDialog.cpp000066400000000000000000000242031351617527000232500ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsAdvFilteringDialog.cpp * @brief GUI Dialog for Advanced filtering settings. */ // KernelShark #include "KsAdvFilteringDialog.hpp" #include "libkshark.h" #include "KsUtils.hpp" /** Create dialog for Advanced Filtering. */ KsAdvFilteringDialog::KsAdvFilteringDialog(QWidget *parent) : QDialog(parent), _condToolBar1(this), _condToolBar2(this), _condToolBar3(this), _descrLabel(this), _sysEvLabel("System/Event: ", &_condToolBar1), _opsLabel("Operator: ", this), _fieldLabel("Field: ", this), _systemComboBox(&_condToolBar1), _eventComboBox(&_condToolBar1), _opsComboBox(&_condToolBar2), _fieldComboBox(&_condToolBar3), _filterEdit(this), _helpButton("Show Help", this), _insertEvtButton("Insert", this), _insertOpButton("Insert", this), _insertFieldButton("Insert", this), _applyButton("Apply", this), _cancelButton("Cancel", this) { struct kshark_context *kshark_ctx(NULL); int buttonWidth; if (!kshark_instance(&kshark_ctx)) return; auto lamAddLine = [&] { QFrame* line = new QFrame(); line->setFrameShape(QFrame::HLine); line->setFrameShadow(QFrame::Sunken); _topLayout.addWidget(line); }; setMinimumWidth(FONT_WIDTH * 80); buttonWidth = STRING_WIDTH("--Show Help--"); _helpButton.setFixedWidth(buttonWidth); _helpButton.setDefault(false); _topLayout.addWidget(&_helpButton); connect(&_helpButton, &QPushButton::pressed, this, &KsAdvFilteringDialog::_help); _descrLabel.setText(_description()); _topLayout.addWidget(&_descrLabel); /* * For the moment do not show the syntax description. It will be shown * only if the "Show Help" button is clicked. */ _descrLabel.hide(); lamAddLine(); _getFilters(kshark_ctx); if (_filters.count()) { _makeFilterTable(kshark_ctx); lamAddLine(); } _condToolBar1.addWidget(&_sysEvLabel); _condToolBar1.addWidget(&_systemComboBox); _condToolBar1.addWidget(&_eventComboBox); /* * Using the old Signal-Slot syntax because QComboBox::currentIndexChanged * has overloads. */ connect(&_systemComboBox, SIGNAL(currentIndexChanged(const QString&)), this, SLOT(_systemChanged(const QString&))); connect(&_eventComboBox, SIGNAL(currentIndexChanged(const QString&)), this, SLOT(_eventChanged(const QString&))); _setSystemCombo(kshark_ctx); _condToolBar1.addSeparator(); _condToolBar1.addWidget(&_insertEvtButton); _topLayout.addWidget(&_condToolBar1); _opsComboBox.addItems(_operators()); _condToolBar2.addWidget(&_opsLabel); _condToolBar2.addWidget(&_opsComboBox); _condToolBar2.addSeparator(); _condToolBar2.addWidget(&_insertOpButton); _topLayout.addWidget(&_condToolBar2); _condToolBar3.addWidget(&_fieldLabel); _condToolBar3.addWidget(&_fieldComboBox); _condToolBar3.addSeparator(); _condToolBar3.addWidget(&_insertFieldButton); _topLayout.addWidget(&_condToolBar3); lamAddLine(); _filterEdit.setMinimumWidth(50 * FONT_WIDTH); _topLayout.addWidget(&_filterEdit); this->setLayout(&_topLayout); buttonWidth = STRING_WIDTH("--Cancel--"); _applyButton.setFixedWidth(buttonWidth); _applyButton.setDefault(true); _cancelButton.setFixedWidth(buttonWidth); _buttonLayout.addWidget(&_applyButton); _buttonLayout.addWidget(&_cancelButton); _buttonLayout.setAlignment(Qt::AlignLeft); _topLayout.addLayout(&_buttonLayout); connect(&_insertEvtButton, &QPushButton::pressed, this, &KsAdvFilteringDialog::_insertEvt); connect(&_insertOpButton, &QPushButton::pressed, this, &KsAdvFilteringDialog::_insertOperator); connect(&_insertFieldButton, &QPushButton::pressed, this, &KsAdvFilteringDialog::_insertField); _applyButtonConnection = connect(&_applyButton, &QPushButton::pressed, this, &KsAdvFilteringDialog::_applyPress); connect(&_applyButton, &QPushButton::pressed, this, &QWidget::close); connect(&_cancelButton, &QPushButton::pressed, this, &QWidget::close); } void KsAdvFilteringDialog::_setSystemCombo(struct kshark_context *kshark_ctx) { QStringList sysList; tep_event **events; int i(0), nEvts(0); if (kshark_ctx->pevent) { nEvts = tep_get_events_count(kshark_ctx->pevent); events = tep_list_events(kshark_ctx->pevent, TEP_EVENT_SORT_SYSTEM); } while (i < nEvts) { QString sysName(events[i]->system); sysList << sysName; while (sysName == events[i]->system) { if (++i == nEvts) break; } } qSort(sysList); _systemComboBox.addItems(sysList); i = _systemComboBox.findText("ftrace"); if (i >= 0) _systemComboBox.setCurrentIndex(i); } QString KsAdvFilteringDialog::_description() { QString descrText = "Usage:\n"; descrText += " [,] : [!][(][)]"; descrText += "[&&/|| [(][)]]\n\n"; descrText += "Examples:\n\n"; descrText += " sched/sched_switch : next_prio < 100 && (prev_prio > 100"; descrText += "&& prev_pid != 0)\n\n"; descrText += " irq.* : irq != 38\n\n"; descrText += " .* : common_pid == 1234\n"; return descrText; } QStringList KsAdvFilteringDialog::_operators() { QStringList OpsList; OpsList << ":" << "," << "==" << "!=" << ">" << "<" << ">=" << "<="; OpsList << "=~" << "!~" << "!" << "(" << ")" << "+" << "-"; OpsList << "*" << "/" << "<<" << ">>" << "&&" << "||" << "&"; return OpsList; } void KsAdvFilteringDialog::_getFilters(struct kshark_context *kshark_ctx) { tep_event **events; char *str; events = tep_list_events(kshark_ctx->pevent, TEP_EVENT_SORT_SYSTEM); for (int i = 0; events[i]; i++) { str = tep_filter_make_string(kshark_ctx->advanced_event_filter, events[i]->id); if (!str) continue; _filters.insert(events[i]->id, QString("%1/%2:%3\n").arg(events[i]->system, events[i]->name, str)); free(str); } } void KsAdvFilteringDialog::_makeFilterTable(struct kshark_context *kshark_ctx) { QMapIterator f(_filters); QTableWidgetItem *i1, *i2, *i3; QStringList headers; int count(0); _table = new KsCheckBoxTable(this); _table->setSelectionMode(QAbstractItemView::SingleSelection); headers << "Delete" << "Event" << " Id" << "Filter"; _table->init(headers, _filters.count()); for(auto f : _filters.keys()) { QStringList thisFilter = _filters.value(f).split(":"); i1 = new QTableWidgetItem(thisFilter[0]); _table->setItem(count, 1, i1); i2 = new QTableWidgetItem(tr("%1").arg(f)); _table->setItem(count, 2, i2); i3 = new QTableWidgetItem(thisFilter[1]); _table->setItem(count, 3, i3); ++count; } _table->setVisible(false); _table->resizeColumnsToContents(); _table->setVisible(true); _topLayout.addWidget(_table); } void KsAdvFilteringDialog::_help() { if (_descrLabel.isVisible()) { _descrLabel.hide(); QApplication::processEvents(); _helpButton.setText("Show Help"); resize(width(), _noHelpHeight); } else { _helpButton.setText("Hide Help"); _noHelpHeight = height(); _descrLabel.show(); } } void KsAdvFilteringDialog::_systemChanged(const QString &sysName) { kshark_context *kshark_ctx(NULL); QStringList evtsList; tep_event **events; int i, nEvts; _eventComboBox.clear(); if (!kshark_instance(&kshark_ctx) || !kshark_ctx->pevent) return; nEvts = tep_get_events_count(kshark_ctx->pevent); events = tep_list_events(kshark_ctx->pevent, TEP_EVENT_SORT_SYSTEM); for (i = 0; i < nEvts; ++i) { if (sysName == events[i]->system) evtsList << events[i]->name; } qSort(evtsList); _eventComboBox.addItems(evtsList); i = _eventComboBox.findText("function"); if (i >= 0) _eventComboBox.setCurrentIndex(i); } QStringList KsAdvFilteringDialog::_getEventFormatFields(struct tep_event *event) { tep_format_field *field, **fields = tep_event_fields(event); QStringList fieldList; for (field = *fields; field; field = field->next) fieldList << field->name; free(fields); qSort(fieldList); return fieldList; } void KsAdvFilteringDialog::_eventChanged(const QString &evtName) { QString sysName = _systemComboBox.currentText(); kshark_context *kshark_ctx(NULL); QStringList fieldList; tep_event **events; int nEvts; _fieldComboBox.clear(); if (!kshark_instance(&kshark_ctx) || !kshark_ctx->pevent) return; nEvts = tep_get_events_count(kshark_ctx->pevent); events = tep_list_events(kshark_ctx->pevent, TEP_EVENT_SORT_SYSTEM); for (int i = 0; i < nEvts; ++i) { if (evtName == events[i]->name && sysName == events[i]->system) { fieldList = _getEventFormatFields(events[i]); _fieldComboBox.addItems(fieldList); return; } } } void KsAdvFilteringDialog::_insertEvt() { QString text = _filterEdit.text(); auto set_evt = [&] () { text += _systemComboBox.currentText(); text += "/"; text += _eventComboBox.currentText(); }; if (text == "") { set_evt(); text += ":"; } else { QString evt = text; text = ""; set_evt(); text += ","; text += evt; } _filterEdit.setText(text); } void KsAdvFilteringDialog::_insertOperator() { QString text = _filterEdit.text(); text += _opsComboBox.currentText(); _filterEdit.setText(text); } void KsAdvFilteringDialog::_insertField() { QString text = _filterEdit.text(); text += _fieldComboBox.currentText(); _filterEdit.setText(text); } void KsAdvFilteringDialog::_applyPress() { QMapIterator f(_filters); kshark_context *kshark_ctx(NULL); const char *text; tep_errno ret; char *filter; int i(0); if (!kshark_instance(&kshark_ctx)) return; while (f.hasNext()) { f.next(); if (_table->_cb[i]->checkState() == Qt::Checked) { tep_filter_remove_event(kshark_ctx->advanced_event_filter, f.key()); } ++i; } auto job_done = [&]() { /* * Disconnect Apply button. This is done in order to protect * against multiple clicks. */ disconnect(_applyButtonConnection); emit dataReload(); }; text = _filterEdit.text().toLocal8Bit().data(); if (strlen(text) == 0) { job_done(); return; } filter = (char*) malloc(strlen(text) + 1); strcpy(filter, text); ret = tep_filter_add_filter_str(kshark_ctx->advanced_event_filter, filter); if (ret < 0) { char error_str[200]; tep_strerror(kshark_ctx->pevent, ret, error_str, sizeof(error_str)); fprintf(stderr, "filter failed due to: %s\n", error_str); free(filter); return; } free(filter); job_done(); } trace-cmd-2.8.3/kernel-shark/src/KsAdvFilteringDialog.hpp000066400000000000000000000033601351617527000232560ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsAdvFilteringDialog.hpp * @brief GUI Dialog for Advanced filtering settings. */ #ifndef _KS_ADV_FILTERING_DIALOG_H #define _KS_ADV_FILTERING_DIALOG_H // Qt #include // KernelShark #include "KsWidgetsLib.hpp" /** * The KsAdvFilteringDialog class provides a dialog for Advanced filtering. */ class KsAdvFilteringDialog : public QDialog { Q_OBJECT public: explicit KsAdvFilteringDialog(QWidget *parent = nullptr); signals: /** Signal emitted when the _apply button of the dialog is pressed. */ void dataReload(); private: int _noHelpHeight; QMap _filters; KsCheckBoxTable *_table; QVBoxLayout _topLayout; QHBoxLayout _buttonLayout; QToolBar _condToolBar1, _condToolBar2, _condToolBar3; QLabel _descrLabel, _sysEvLabel, _opsLabel, _fieldLabel; QComboBox _systemComboBox, _eventComboBox; QComboBox _opsComboBox, _fieldComboBox; QLineEdit _filterEdit; QPushButton _helpButton; QPushButton _insertEvtButton, _insertOpButton, _insertFieldButton; QPushButton _applyButton, _cancelButton; QMetaObject::Connection _applyButtonConnection; void _help(); void _applyPress(); void _insertEvt(); void _insertOperator(); void _insertField(); QString _description(); QStringList _operators(); void _getFilters(struct kshark_context *kshark_ctx); void _makeFilterTable(struct kshark_context *kshark_ctx); QStringList _getEventFormatFields(struct tep_event *event); void _setSystemCombo(struct kshark_context *kshark_ctx); private slots: void _systemChanged(const QString&); void _eventChanged(const QString&); }; #endif // _KS_ADV_FILTERING_DIALOG_H trace-cmd-2.8.3/kernel-shark/src/KsCaptureDialog.cpp000066400000000000000000000342711351617527000223030ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsCaptureDialog.cpp * @brief Dialog for trace data recording. */ // Qt #include // KernelShark #include "libkshark.h" #include "KsUtils.hpp" #include "KsCmakeDef.hpp" #include "KsCaptureDialog.hpp" static inline tep_handle *local_events() { return tracecmd_local_events(tracecmd_get_tracing_dir()); } /** @brief Create KsCaptureControl widget. */ KsCaptureControl::KsCaptureControl(QWidget *parent) : QWidget(parent), _localTEP(local_events()), _eventsWidget(_localTEP, this), _pluginsLabel("Plugin: ", this), _outputLabel("Output file: ", this), _commandLabel("Command: ", this), _outputLineEdit("trace.dat", this), _commandLineEdit("sleep 0.1", this), _settingsToolBar(this), _controlToolBar(this), _pluginsComboBox(this), _importSettingsButton("Import Settings", this), _exportSettingsButton("Export Settings", this), _outputBrowseButton("Browse", this), _commandCheckBox("Display output", this), _captureButton("Capture", &_controlToolBar), _applyButton("Apply", &_controlToolBar), _closeButton("Close", &_controlToolBar) { QStringList pluginList = _getPlugins(); int row(0); auto lamAddLine = [&] { QFrame* line = new QFrame(); line->setFrameShape(QFrame::HLine); line->setFrameShadow(QFrame::Sunken); _topLayout.addWidget(line); }; if (pluginList.count() == 0) { /* * No plugins have been found. Most likely this is because * the process has no Root privileges. */ QString message("Error: No events or plugins found.\n"); message += "Root privileges are required."; QLabel *errorLabel = new QLabel(message); errorLabel->setStyleSheet("QLabel {color : red;}"); _topLayout.addWidget(errorLabel); lamAddLine(); } pluginList.prepend("nop"); _settingsToolBar.addWidget(&_importSettingsButton); _settingsToolBar.addSeparator(); _settingsToolBar.addWidget(&_exportSettingsButton); _topLayout.addWidget(&_settingsToolBar); lamAddLine(); _eventsWidget.setDefault(false); _eventsWidget.setMinimumHeight(25 * FONT_HEIGHT); _eventsWidget.removeSystem("ftrace"); _topLayout.addWidget(&_eventsWidget); _pluginsLabel.adjustSize(); _execLayout.addWidget(&_pluginsLabel, row, 0); _pluginsComboBox.addItems(pluginList); _execLayout.addWidget(&_pluginsComboBox, row++, 1); _outputLabel.adjustSize(); _execLayout.addWidget(&_outputLabel, row, 0); _outputLineEdit.setFixedWidth(FONT_WIDTH * 30); _execLayout.addWidget(&_outputLineEdit, row, 1); _outputBrowseButton.adjustSize(); _execLayout.addWidget(&_outputBrowseButton, row++, 2); _commandLabel.adjustSize(); _commandLabel.setFixedWidth(_outputLabel.width()); _execLayout.addWidget(&_commandLabel, row, 0); _commandLineEdit.setFixedWidth(FONT_WIDTH * 30); _execLayout.addWidget(&_commandLineEdit, row, 1); _commandCheckBox.setCheckState(Qt::Unchecked); _commandCheckBox.adjustSize(); _execLayout.addWidget(&_commandCheckBox, row++, 2); _topLayout.addLayout(&_execLayout); lamAddLine(); _captureButton.setFixedWidth(STRING_WIDTH("_Capture_") + FONT_WIDTH * 2); _applyButton.setFixedWidth(_captureButton.width()); _closeButton.setFixedWidth(_captureButton.width()); _controlToolBar.addWidget(&_captureButton); _controlToolBar.addWidget(&_applyButton); _controlToolBar.addWidget(&_closeButton); _topLayout.addWidget(&_controlToolBar); setLayout(&_topLayout); connect(&_importSettingsButton, &QPushButton::pressed, this, &KsCaptureControl::_importSettings); connect(&_exportSettingsButton, &QPushButton::pressed, this, &KsCaptureControl::_exportSettings); connect(&_outputBrowseButton, &QPushButton::pressed, this, &KsCaptureControl::_browse); connect(&_applyButton, &QPushButton::pressed, this, &KsCaptureControl::_apply); } /** * Use the settings of the Control panel to generate a list of command line * arguments for trace-cmd. */ QStringList KsCaptureControl::getArgs() { QStringList argv; argv << "record"; argv << "-p" << _pluginsComboBox.currentText(); if (_eventsWidget.all()) { argv << "-e" << "all"; } else { QVector evtIds = _eventsWidget.getCheckedIds(); tep_event *event; for (auto const &id: evtIds) { event = tep_find_event(_localTEP, id); if (!event) continue; argv << "-e" + QString(event->system) + ":" + QString(event->name); } } argv << "-o" << outputFileName(); argv << _commandLineEdit.text().split(" "); return argv; } QStringList KsCaptureControl::_getPlugins() { QStringList pluginList; char **all_plugins; all_plugins = tracecmd_local_plugins(tracecmd_get_tracing_dir()); if (!all_plugins) return pluginList; for (int i = 0; all_plugins[i]; ++i) { /* * TODO plugin selection here. * printf("plugin %i %s\n", i, all_plugins[i]); */ pluginList << all_plugins[i]; free(all_plugins[i]); } free (all_plugins); qSort(pluginList); return pluginList; } void KsCaptureControl::_importSettings() { int nEvts = tep_get_events_count(_localTEP); kshark_config_doc *conf, *jevents, *temp; QVector v(nEvts, false); tracecmd_filter_id *eventHash; tep_event **events; QString fileName; /** Get all available events. */ events = tep_list_events(_localTEP, TEP_EVENT_SORT_SYSTEM); /* Get the configuration document. */ fileName = KsUtils::getFile(this, "Import from Filter", "Kernel Shark Config files (*.json);;", _lastFilePath); if (fileName.isEmpty()) return; conf = kshark_open_config_file(fileName.toStdString().c_str(), "kshark.config.record"); if (!conf) return; /* * Load the hash table of selected events from the configuration * document. */ jevents = kshark_config_alloc(KS_CONFIG_JSON); if (!kshark_config_doc_get(conf, "Events", jevents)) return; eventHash = tracecmd_filter_id_hash_alloc(); kshark_import_event_filter(_localTEP, eventHash, "Events", jevents); for (int i = 0; i < nEvts; ++i) { if (tracecmd_filter_id_find(eventHash, events[i]->id)) v[i] = true; } _eventsWidget.set(v); tracecmd_filter_id_hash_free(eventHash); /** Get all available plugins. */ temp = kshark_string_config_alloc(); if (kshark_config_doc_get(conf, "Plugin", temp)) _pluginsComboBox.setCurrentText(KS_C_STR_CAST(temp->conf_doc)); if (kshark_config_doc_get(conf, "Output", temp)) _outputLineEdit.setText(KS_C_STR_CAST(temp->conf_doc)); if (kshark_config_doc_get(conf, "Command", temp)) _commandLineEdit.setText(KS_C_STR_CAST(temp->conf_doc)); } void KsCaptureControl::_exportSettings() { kshark_config_doc *conf, *events; json_object *jplugin; QString plugin, out, comm; QVector ids; QString fileName; fileName = KsUtils::getSaveFile(this, "Export to File", "Kernel Shark Config files (*.json);;", ".json", _lastFilePath); if (fileName.isEmpty()) return; /* Create a configuration document. */ conf = kshark_record_config_new(KS_CONFIG_JSON); events = kshark_filter_config_new(KS_CONFIG_JSON); /* * Use the tracecmd_filter_id to save all selected events in the * configuration file. */ ids = _eventsWidget.getCheckedIds(); tracecmd_filter_id *eventHash = tracecmd_filter_id_hash_alloc(); for (auto const &id: ids) tracecmd_filter_id_add(eventHash, id); kshark_export_event_filter(_localTEP, eventHash, "Events", events); kshark_config_doc_add(conf, "Events", events); tracecmd_filter_id_hash_free(eventHash); /* Save the plugin. */ plugin = _pluginsComboBox.currentText(); jplugin = json_object_new_string(plugin.toStdString().c_str()); kshark_config_doc_add(conf, "Plugin", kshark_json_to_conf(jplugin)); /* Save the output file. */ out = outputFileName(); json_object *jout = json_object_new_string(out.toStdString().c_str()); kshark_config_doc_add(conf, "Output", kshark_json_to_conf(jout)); /* Save the command. */ comm = _commandLineEdit.text(); json_object *jcomm = json_object_new_string(comm.toStdString().c_str()); kshark_config_doc_add(conf, "Command", kshark_json_to_conf(jcomm)); kshark_save_config_file(fileName.toStdString().c_str(), conf); } void KsCaptureControl::_browse() { QString fileName = KsUtils::getSaveFile(this, "Save File", "trace-cmd files (*.dat);;All files (*)", ".dat", _lastFilePath); if (!fileName.isEmpty()) _outputLineEdit.setText(fileName); } void KsCaptureControl::_apply() { emit argsReady(getArgs().join(" ")); } /** @brief Create KsCaptureMonitor widget. */ KsCaptureMonitor::KsCaptureMonitor(QWidget *parent) : QWidget(parent), _mergedChannels(false), _argsModified(false), _panel(this), _name("Output display", this), _space("max size ", this), _readOnlyCB("read only", this), _maxLinNumEdit(QString("%1").arg(KS_CAP_MON_MAX_LINE_NUM), this), _consolOutput("", this) { _panel.setMaximumHeight(FONT_HEIGHT * 1.75); _panel.addWidget(&_name); _space.setAlignment(Qt::AlignRight); _panel.addWidget(&_space); _maxLinNumEdit.setFixedWidth(FONT_WIDTH * 7); _panel.addWidget(&_maxLinNumEdit); _panel.addSeparator(); _readOnlyCB.setCheckState(Qt::Checked); _panel.addWidget(&_readOnlyCB); _layout.addWidget(&_panel); _consolOutput.setStyleSheet("QLabel {background-color : white;}"); _consolOutput.setMinimumWidth(FONT_WIDTH * 60); _consolOutput.setMinimumHeight(FONT_HEIGHT * 10); _consolOutput.setMaximumBlockCount(KS_CAP_MON_MAX_LINE_NUM); _space.setMinimumWidth(FONT_WIDTH * 50 - _name.width() - _readOnlyCB.width()); _consolOutput.setReadOnly(true); _layout.addWidget(&_consolOutput); this->setLayout(&_layout); connect(&_maxLinNumEdit, &QLineEdit::textChanged, this, &KsCaptureMonitor::_maxLineNumber); connect(&_readOnlyCB, &QCheckBox::stateChanged, this, &KsCaptureMonitor::_readOnly); connect(&_consolOutput, &QPlainTextEdit::textChanged, this, &KsCaptureMonitor::_argVModified); this->show(); } void KsCaptureMonitor::_maxLineNumber(const QString &test) { bool ok; int max = test.toInt(&ok); if (ok) _consolOutput.setMaximumBlockCount(max); } void KsCaptureMonitor::_readOnly(int state) { if (state == Qt::Checked) _consolOutput.setReadOnly(true); else _consolOutput.setReadOnly(false); } void KsCaptureMonitor::_argsReady(const QString &args) { _name.setText("Capture options:"); _consolOutput.setPlainText(args); _argsModified = false; } void KsCaptureMonitor::_argVModified() { _argsModified = true; } void KsCaptureMonitor::_printAllStandardError() { QProcess *_capture = (QProcess*) sender(); _consolOutput.moveCursor(QTextCursor::End); _consolOutput.insertPlainText(_capture->readAllStandardError()); _consolOutput.moveCursor(QTextCursor::End); QCoreApplication::processEvents(); } void KsCaptureMonitor::_printAllStandardOutput() { QProcess *_capture = (QProcess*) sender(); if (!_mergedChannels) return; _consolOutput.appendPlainText(_capture->readAllStandardOutput()); QCoreApplication::processEvents(); } /** * Connect the Capture monitor widget to the signals of the recording process. */ void KsCaptureMonitor::connectMe(QProcess *proc, KsCaptureControl *ctrl) { connect(proc, &QProcess::started, this, &KsCaptureMonitor::_captureStarted); /* Using the old Signal-Slot syntax because QProcess::finished has overloads. */ connect(proc, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(_captureFinished(int, QProcess::ExitStatus))); connect(proc, &QProcess::readyReadStandardError, this, &KsCaptureMonitor::_printAllStandardError); connect(proc, &QProcess::readyReadStandardOutput, this, &KsCaptureMonitor::_printAllStandardOutput); connect(ctrl, &KsCaptureControl::argsReady, this, &KsCaptureMonitor::_argsReady); } void KsCaptureMonitor::_captureStarted() { _name.setText("Terminal output:"); _readOnlyCB.setCheckState(Qt::Checked); QCoreApplication::processEvents(); } void KsCaptureMonitor::_captureFinished(int exit, QProcess::ExitStatus status) { QProcess *_capture = (QProcess *)sender(); if (exit != 0 || status != QProcess::NormalExit) { QString errMessage("Capture process failed: "); errMessage += _capture->errorString(); _consolOutput.appendPlainText(errMessage); QCoreApplication::processEvents(); } } /** Print a message. */ void KsCaptureMonitor::print(const QString &message) { _consolOutput.appendPlainText(message); } /** @brief Create KsCaptureDialog widget. */ KsCaptureDialog::KsCaptureDialog(QWidget *parent) : QWidget(parent), _captureCtrl(this), _captureMon(this), _captureProc(this) { QString captureExe; this->setWindowTitle("Capture"); _layout.addWidget(&_captureCtrl); _layout.addWidget(&_captureMon); this->setLayout(&_layout); connect(&_captureCtrl._commandCheckBox, &QCheckBox::stateChanged, this, &KsCaptureDialog::_setChannelMode); connect(&_captureCtrl._captureButton, &QPushButton::pressed, this, &KsCaptureDialog::_capture); connect(&_captureCtrl._closeButton, &QPushButton::pressed, this, &KsCaptureDialog::close); if (KsUtils::isInstalled()) captureExe = QString(_INSTALL_PREFIX) + QString("/bin"); else captureExe = TRACECMD_BIN_DIR; captureExe += "/trace-cmd"; _captureProc.setProgram(captureExe); _captureMon.connectMe(&_captureProc, &_captureCtrl); } void KsCaptureDialog::_capture() { QStringList argv; int argc; if(_captureMon._argsModified) { argv = _captureMon.text().split(" "); } else { argv = _captureCtrl.getArgs(); } _captureMon.print("\n"); _captureMon.print(QString("trace-cmd " + argv.join(" ") + "\n")); _captureProc.setArguments(argv); _captureProc.start(); _captureProc.waitForFinished(); argc = argv.count(); for (int i = 0; i < argc; ++i) { if (argv[i] == "-o") { _sendOpenReq(argv[i + 1]); break; } } /* Reset the _argsModified flag. */ _captureMon._argsModified = false; } void KsCaptureDialog::_setChannelMode(int state) { if (state > 0) { _captureMon._mergedChannels = true; } else { _captureMon._mergedChannels = false; } } void KsCaptureDialog::_sendOpenReq(const QString &fileName) { QLocalSocket *socket = new QLocalSocket(this); socket->connectToServer("KSCapture", QIODevice::WriteOnly); if (socket->waitForConnected()) { QByteArray block; QDataStream out(&block, QIODevice::WriteOnly); const QString message = fileName; out << quint32(message.size()); out << message; socket->write(block); socket->flush(); socket->disconnectFromServer(); } else { _captureMon.print(socket->errorString()); } } trace-cmd-2.8.3/kernel-shark/src/KsCaptureDialog.hpp000066400000000000000000000072631351617527000223110ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsCaptureDialog.hpp * @brief Dialog for trace data recording. */ #ifndef _KS_CAPTURE_H #define _KS_CAPTURE_H // Qt #include // KernelShark #include "KsWidgetsLib.hpp" /** * The KsCaptureControl class provides a control panel for the KernelShark * Capture dialog. */ class KsCaptureControl : public QWidget { Q_OBJECT public: explicit KsCaptureControl(QWidget *parent = 0); QStringList getArgs(); /** Get the name of the tracing data output file. */ QString outputFileName() const {return _outputLineEdit.text();} /** Set the name of the tracing data output file. */ void setOutputFileName(const QString &f) {_outputLineEdit.setText(f);} signals: /** This signal is emitted when the "Apply" button is pressed. */ void argsReady(const QString &args); private: tep_handle *_localTEP; KsEventsCheckBoxWidget _eventsWidget; QVBoxLayout _topLayout; QGridLayout _execLayout; QLabel _pluginsLabel, _outputLabel, _commandLabel; QLineEdit _outputLineEdit, _commandLineEdit; QToolBar _settingsToolBar, _controlToolBar; QComboBox _pluginsComboBox; QPushButton _importSettingsButton, _exportSettingsButton; QPushButton _outputBrowseButton; QString _lastFilePath; QStringList _getPlugins(); void _importSettings(); void _exportSettings(); void _browse(); void _apply(); public: /** * A Check box used to indicate if the output of the command needs to * be shown by the KsCaptureMonitor widget. */ QCheckBox _commandCheckBox; /** Capture button for the control panel. */ QPushButton _captureButton; /** Apply button for the control panel. */ QPushButton _applyButton; /** Close button for the control panel. */ QPushButton _closeButton; }; /** * The KsCaptureMonitor class provides a terminal-like widget for monitoring * the tracing data recording process. */ class KsCaptureMonitor : public QWidget { Q_OBJECT public: explicit KsCaptureMonitor(QWidget *parent = 0); /** Get the text shown by the widget. */ QString text() const {return _consolOutput.toPlainText();} /** Clear the text shown by the widget. */ void clear() {_consolOutput.clear();} void print(const QString &message); void connectMe(QProcess *proc, KsCaptureControl *ctrl); /** A flag indicating if the stdout and stderr channels are _merged. */ bool _mergedChannels; /** * A flag indicating, if the list of the command line arguments for trace-cmd * has been edited by the user. */ bool _argsModified; private: QVBoxLayout _layout; QToolBar _panel; QLabel _name, _space; QCheckBox _readOnlyCB; QLineEdit _maxLinNumEdit; QPlainTextEdit _consolOutput; void _argsReady(const QString &test); void _maxLineNumber(const QString &test); void _readOnly(int); void _argVModified(); void _captureStarted(); void _printAllStandardError(); void _printAllStandardOutput(); private slots: void _captureFinished(int, QProcess::ExitStatus); }; /** Default number of lines shown by the KsCaptureMonitor widget. */ #define KS_CAP_MON_MAX_LINE_NUM 200 /** * The KsCaptureDialog class provides a dialog for recording of tracing data. */ class KsCaptureDialog : public QWidget { Q_OBJECT public: explicit KsCaptureDialog(QWidget *parent = 0); /** Set the name of the tracing data output file. */ void setOutputFileName(const QString &f) { _captureCtrl.setOutputFileName(f); } private: QHBoxLayout _layout; KsCaptureControl _captureCtrl; KsCaptureMonitor _captureMon; QProcess _captureProc; void _capture(); void _setChannelMode(int state); void _sendOpenReq(const QString &fileName); }; #endif // _KS_CAPTURE_H trace-cmd-2.8.3/kernel-shark/src/KsDualMarker.cpp000066400000000000000000000211241351617527000216000ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsDualMarker.cpp * @brief KernelShark Dual Marker. */ #include "KsDualMarker.hpp" #include "KsGLWidget.hpp" /** * Reimplemented handler for mouse press events. Right mouse click events will * deselect the corresponding marker. */ void KsMarkerButton::mousePressEvent(QMouseEvent *e) { if(e->button() == Qt::RightButton) { emit deselect(); return; } QPushButton::mousePressEvent(e); } /** * @brief Create KsGraphMark object. * * @param s: The Identifier of the marker (state A or state B). */ KsGraphMark::KsGraphMark(DualMarkerState s) : _color(Qt::darkGreen), _state(s) { reset(); _mark._color << _color; } /** * @brief Create KsGraphMark object. * * @param s: The Identifier of the marker (state A or state B). * @param col: The color of the marker. */ KsGraphMark::KsGraphMark(DualMarkerState s, QColor col) : _color(col), _state(s) { reset(); _mark._color << _color; } /** Reset the marker. */ void KsGraphMark::reset() { _isSet = false; _bin = -1; _cpu = -1; _task = -1; _pos = 0; _mark._visible = false; } /** * @brief Set the marker. * * @param data: Input location for the Data Store object. * @param histo: Input location for the model descriptor. * @param pos: The index inside the data array this marker will points to. * @param cpuGraph: The index of the CPU Graph this marker points to. * @param taskGraph: The index of the Task Graph this marker points to. */ bool KsGraphMark::set(const KsDataStore &data, kshark_trace_histo *histo, size_t pos, int cpuGraph, int taskGraph) { uint8_t visFlags; _isSet = true; _pos = pos; _ts = data.rows()[_pos]->ts; visFlags = data.rows()[_pos]->visible; if ((visFlags & KS_TEXT_VIEW_FILTER_MASK) && (visFlags & KS_GRAPH_VIEW_FILTER_MASK)) _mark.setDashed(false); else _mark.setDashed(true); _cpu = cpuGraph; _task = taskGraph; if (_ts > histo->max || _ts < histo->min) { _bin = -1; _mark._visible = false; return false; } _bin = (_ts - histo->min)/histo->bin_size; setVisible(true); return true; } /** * @brief Use this function to update the marker when the state of the model * has changed. * * @param data: Input location for the Data Store object. * @param histo: Input location for the model descriptor. */ bool KsGraphMark::update(const KsDataStore &data, kshark_trace_histo *histo) { if (!_isSet) return false; return set(data, histo, this->_pos, this->_cpu, this->_task); } /** Unset the Marker and make it invisible. */ void KsGraphMark::remove() { _isSet = false; setVisible(false); } /** An operator for getting the opposite state of the marker identifier. */ DualMarkerState operator!(const DualMarkerState &state) { if (state == DualMarkerState::B) return DualMarkerState::A; return DualMarkerState::B; } /** @brief Create a Dual Marker State Machine. */ KsDualMarkerSM::KsDualMarkerSM(QWidget *parent) : QWidget(parent), _buttonA("Marker A", this), _buttonB("Marker B", this), _labelDeltaDescr(" A,B Delta: ", this), _markA(DualMarkerState::A, Qt::darkGreen), _markB(DualMarkerState::B, Qt::darkCyan), _scCtrlA(this), _scCtrlB(this) { QString styleSheetA, styleSheetB; _buttonA.setFixedWidth(STRING_WIDTH(" Marker A ")); _buttonB.setFixedWidth(STRING_WIDTH(" Marker B ")); for (auto const &l: {&_labelMA, &_labelMB, &_labelDelta}) { l->setFrameStyle(QFrame::Panel | QFrame::Sunken); l->setStyleSheet("QLabel {background-color : white;}"); l->setTextInteractionFlags(Qt::TextSelectableByMouse); l->setFixedWidth(FONT_WIDTH * 16); } styleSheetA = "background : " + _markA._color.name() + "; color : white"; _stateA = new QState; _stateA->setObjectName("A"); _stateA->assignProperty(&_buttonA, "styleSheet", styleSheetA); _stateA->assignProperty(&_buttonB, "styleSheet", "color : rgb(70, 70, 70)"); styleSheetB = "background : " + _markB._color.name() + "; color : white"; _stateB = new QState; _stateB->setObjectName("B"); _stateB->assignProperty(&_buttonA, "styleSheet", "color : rgb(70, 70, 70)"); _stateB->assignProperty(&_buttonB, "styleSheet", styleSheetB); /* Define transitions from State A to State B. */ _stateA->addTransition(this, &KsDualMarkerSM::machineToB, _stateB); _scCtrlA.setKey(Qt::CTRL + Qt::Key_A); _stateA->addTransition(&_scCtrlB, &QShortcut::activated, _stateB); connect(&_scCtrlA, &QShortcut::activated, this, &KsDualMarkerSM::_doStateA); _stateA->addTransition(&_buttonB, &QPushButton::clicked, _stateB); connect(&_buttonB, &QPushButton::clicked, this, &KsDualMarkerSM::_doStateB); connect(&_buttonB, &KsMarkerButton::deselect, this, &KsDualMarkerSM::deselectB); /* Define transitions from State B to State A. */ _stateB->addTransition(this, &KsDualMarkerSM::machineToA, _stateA); _scCtrlB.setKey(Qt::CTRL + Qt::Key_B); _stateB->addTransition(&_scCtrlA, &QShortcut::activated, _stateA); connect(&_scCtrlB, &QShortcut::activated, this, &KsDualMarkerSM::_doStateB); _stateB->addTransition(&_buttonA, &QPushButton::clicked, _stateA); connect(&_buttonA, &QPushButton::clicked, this, &KsDualMarkerSM::_doStateA); connect(&_buttonA, &KsMarkerButton::deselect, this, &KsDualMarkerSM::deselectA); _machine.addState(_stateA); _machine.addState(_stateB); _machine.setInitialState(_stateA); _markState = DualMarkerState::A; _machine.start(); } /** * Reset the Mark A and Mark B and clear the information shown by the Marker's * toolbar. */ void KsDualMarkerSM::reset() { _markA.reset(); _markB.reset(); _labelMA.setText(""); _labelMB.setText(""); _labelDelta.setText(""); } /** Restart the Dual Marker State Machine. */ void KsDualMarkerSM::restart() { _machine.stop(); reset(); _markState = DualMarkerState::A; _machine.start(); } void KsDualMarkerSM::_doStateA() { if (_markState != DualMarkerState::A) { _markState = DualMarkerState::A; emit markSwitchForView(); } else if (activeMarker()._isSet) { emit updateView(activeMarker()._pos, true); emit updateGraph(activeMarker()._pos); } } void KsDualMarkerSM::_doStateB() { if (_markState != DualMarkerState::B) { _markState = DualMarkerState::B; emit markSwitchForView(); } else if (activeMarker()._isSet) { emit updateView(activeMarker()._pos, true); emit updateGraph(activeMarker()._pos); } } /** Get the Graph marker associated with a given state. */ KsGraphMark &KsDualMarkerSM::getMarker(DualMarkerState s) { if (s == DualMarkerState::A) return _markA; return _markB; } /** Position all buttons and labels of the Dual Marker in a toolbar. */ void KsDualMarkerSM::placeInToolBar(QToolBar *tb) { tb->addWidget(new QLabel(" ")); tb->addWidget(&_buttonA); tb->addWidget(&_labelMA); tb->addSeparator(); tb->addWidget(new QLabel(" ")); tb->addWidget(&_buttonB); tb->addWidget(&_labelMB); tb->addSeparator(); tb->addWidget(&_labelDeltaDescr); tb->addWidget(&_labelDelta); } /** Set the state of the Dual Marker State Machine. */ void KsDualMarkerSM::setState(DualMarkerState st) { if (st == _markState) return; if (st == DualMarkerState::A) { emit machineToA(); _doStateA(); } if (st == DualMarkerState::B) { emit machineToB(); _doStateB(); } } /** * @brief Use this function to update the two marker when the state of the * model has changed. * * @param data: Input location for the Data Store object. * @param glw: Input location for the OpenGL widget object. */ void KsDualMarkerSM::updateMarkers(const KsDataStore &data, KsGLWidget *glw) { if(_markA.update(data, glw->model()->histo())) glw->setMark(&_markA); if(_markB.update(data, glw->model()->histo())) glw->setMark(&_markB); updateLabels(); } /** * @brief Use this function to update the labels when the state of the model * has changed. */ void KsDualMarkerSM::updateLabels() { char separator(' '); int precision(6); // 1 microsecond precision. auto lamSetTimeLabel = [&precision, &separator] (QLabel &l, int64_t t) { QString time = KsUtils::Ts2String(t, precision); int i = time.indexOf('.') + 4; /* Insert separators for milliseconds amd microseconds. */ while (i < time.size()) { time.insert(i, separator); i = i + 4; } l.setText(time); }; // Marker A if (_markA._isSet) lamSetTimeLabel(_labelMA, _markA._ts); else _labelMA.clear(); // Marker B if (_markB._isSet) lamSetTimeLabel(_labelMB, _markB._ts); else _labelMB.clear(); // Delta if (_markA._isSet && _markB._isSet) { precision = 9; // 1 nanoseconds precision. lamSetTimeLabel(_labelDelta, _markB._ts - _markA._ts); } else { _labelDelta.clear(); } } trace-cmd-2.8.3/kernel-shark/src/KsDualMarker.hpp000066400000000000000000000110321351617527000216020ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsDualMarker.hpp * @brief KernelShark Dual Marker. */ #ifndef _KS_DUAL_MARKER_H #define _KS_DUAL_MARKER_H // Qt #include // KernelShark #include "KsUtils.hpp" #include "KsPlotTools.hpp" /** * The Marker Button class provides a button that deselect the corresponding * marker in the case of a Right mouse click. */ class KsMarkerButton : public QPushButton { Q_OBJECT public: /** * @brief Create a default button. */ explicit KsMarkerButton(QWidget *parent = nullptr) : QPushButton(parent) {} /** * @brief Create a button with text. */ explicit KsMarkerButton(const QString &text, QWidget *parent = nullptr) : QPushButton(text, parent) {} void mousePressEvent(QMouseEvent *e); signals: /** * This signal is emitted when the button is click by the Right mouse * button. */ void deselect(); }; class KsGLWidget; /** The KsGraphMark represents a marker for KernelShark GUI. */ class KsGraphMark : public QObject { Q_OBJECT public: KsGraphMark() = delete; KsGraphMark(DualMarkerState s); KsGraphMark(DualMarkerState s, QColor col); void reset(); bool set(const KsDataStore &data, kshark_trace_histo *histo, size_t pos, int cpuGraph, int taskGraph); bool update(const KsDataStore &data, kshark_trace_histo *histo); /** Is this marker visible. */ bool isVisible() const {return _mark._visible;} /** Draw this marker. */ void draw() const {_mark.draw();} /** Set the visiblity of the marker. */ void setVisible(bool v) {_mark._visible = v;} void remove(); public: /** Is this marker set. */ bool _isSet; /** The number of the bin this marker points to. */ int _bin; /** The index of the CPU Graph this marker points to. */ int _cpu; /** The index of the Task Graph this marker points to. */ int _task; /** The index inside the data array this marker points to. */ size_t _pos; /** The timestamp of the marker. */ uint64_t _ts; /** The RGB color of the marker. */ QColor _color; /** The Identifier of the marker (A or B). */ const DualMarkerState _state; /** The graphical element of this marker. */ KsPlot::Mark _mark; }; DualMarkerState operator !(const DualMarkerState &state); /** * The DualMarkerState represents the State Machine of the KernelShark GUI * Dual Marker. */ class KsDualMarkerSM : public QWidget { Q_OBJECT public: explicit KsDualMarkerSM(QWidget *parent = nullptr); void reset(); void restart(); void placeInToolBar(QToolBar *tb); /** Get the Identifier of the current state of the State Machine. */ DualMarkerState getState() const {return _markState;} void setState(DualMarkerState st); KsGraphMark &getMarker(DualMarkerState s); /** Get the active marker. */ KsGraphMark &activeMarker() {return getMarker(_markState);} /** Get the passive marker. */ KsGraphMark &passiveMarker() {return getMarker(!_markState);} /** Get the marker A. */ KsGraphMark &markerA() {return _markA;} /** Get the marker B. */ KsGraphMark &markerB() {return _markB;} /** Get a pointer to the State A object. */ QState *stateAPtr() {return _stateA;} /** Get a pointer to the State B object. */ QState *stateBPtr() {return _stateB;} void updateMarkers(const KsDataStore &data, KsGLWidget *glw); void updateLabels(); signals: /** * This signal is emitted when the Table View has to switch the color * of the selected row. */ void markSwitchForView(); /** * This signal is emitted when the Table View has to show a different * entry (row). */ void updateView(size_t pos, bool mark); /** * This signal is emitted when the Graph mark has to show a different * entry. */ void updateGraph(size_t pos); /** * This signal is emitted when the State Machine has to switch to * state A. */ void machineToA(); /** * This signal is emitted when the State Machine has to switch to * state B. */ void machineToB(); /** * This signal is used to re-emitted the deselect signal of the * Marker A button. */ void deselectA(); /** * This signal is used to re-emitted the deselect signal of the * Marker B button. */ void deselectB(); private: KsMarkerButton _buttonA; KsMarkerButton _buttonB; QLabel _labelMA, _labelMB, _labelDelta; QLabel _labelDeltaDescr; QState *_stateA; QState *_stateB; QStateMachine _machine; DualMarkerState _markState; KsGraphMark _markA, _markB; QShortcut _scCtrlA, _scCtrlB; void _doStateA(); void _doStateB(); }; #endif trace-cmd-2.8.3/kernel-shark/src/KsGLWidget.cpp000066400000000000000000000523121351617527000212220ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsGLWidget.cpp * @brief OpenGL widget for plotting trace graphs. */ // OpenGL #include #include // KernelShark #include "KsGLWidget.hpp" #include "KsUtils.hpp" #include "KsPlugins.hpp" #include "KsDualMarker.hpp" /** Create a default (empty) OpenGL widget. */ KsGLWidget::KsGLWidget(QWidget *parent) : QOpenGLWidget(parent), _hMargin(20), _vMargin(30), _vSpacing(20), _mState(nullptr), _data(nullptr), _rubberBand(QRubberBand::Rectangle, this), _rubberBandOrigin(0, 0), _dpr(1) { setMouseTracking(true); /* * Using the old Signal-Slot syntax because QWidget::update has * overloads. */ connect(&_model, SIGNAL(modelReset()), this, SLOT(update())); } KsGLWidget::~KsGLWidget() { for (auto &g: _graphs) delete g; } /** Reimplemented function used to set up all required OpenGL resources. */ void KsGLWidget::initializeGL() { _dpr = QApplication::desktop()->devicePixelRatio(); ksplot_init_opengl(_dpr); } /** * Reimplemented function used to reprocess all graphs whene the widget has * been resized. */ void KsGLWidget::resizeGL(int w, int h) { ksplot_resize_opengl(w, h); if(!_data) return; /* * From the size of the widget, calculate the number of bins. * One bin will correspond to one pixel. */ int nBins = width() - _hMargin * 2; /* * Reload the data. The range of the histogram is the same * but the number of bins changes. */ ksmodel_set_bining(_model.histo(), nBins, _model.histo()->min, _model.histo()->max); _model.fill(_data->rows(), _data->size()); } /** Reimplemented function used to plot trace graphs. */ void KsGLWidget::paintGL() { float size = 1.5 * _dpr; glClear(GL_COLOR_BUFFER_BIT); /* Draw the time axis. */ if(_data) _drawAxisX(size); /* Process and draw all graphs by using the built-in logic. */ _makeGraphs(_cpuList, _taskList); for (auto const &g: _graphs) g->draw(size); /* Process and draw all plugin-specific shapes. */ _makePluginShapes(_cpuList, _taskList); while (!_shapes.empty()) { auto s = _shapes.front(); _shapes.pop_front(); s->_size = size; s->draw(); delete s; } /* * Update and draw the markers. Make sure that the active marker * is drawn on top. */ _mState->updateMarkers(*_data, this); _mState->passiveMarker().draw(); _mState->activeMarker().draw(); } /** Reset (empty) the widget. */ void KsGLWidget::reset() { _cpuList = {}; _taskList = {}; _data = nullptr; _model.reset(); } /** Reimplemented event handler used to receive mouse press events. */ void KsGLWidget::mousePressEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton) { _posMousePress = _posInRange(event->pos().x()); _rangeBoundInit(_posMousePress); } } int KsGLWidget::_getLastTask(struct kshark_trace_histo *histo, int bin, int cpu) { kshark_context *kshark_ctx(nullptr); kshark_entry_collection *col; int pid; if (!kshark_instance(&kshark_ctx)) return KS_EMPTY_BIN; col = kshark_find_data_collection(kshark_ctx->collections, KsUtils::matchCPUVisible, cpu); for (int b = bin; b >= 0; --b) { pid = ksmodel_get_pid_back(histo, b, cpu, false, col, nullptr); if (pid >= 0) return pid; } return ksmodel_get_pid_back(histo, LOWER_OVERFLOW_BIN, cpu, false, col, nullptr); } int KsGLWidget::_getLastCPU(struct kshark_trace_histo *histo, int bin, int pid) { kshark_context *kshark_ctx(nullptr); kshark_entry_collection *col; int cpu; if (!kshark_instance(&kshark_ctx)) return KS_EMPTY_BIN; col = kshark_find_data_collection(kshark_ctx->collections, kshark_match_pid, pid); for (int b = bin; b >= 0; --b) { cpu = ksmodel_get_cpu_back(histo, b, pid, false, col, nullptr); if (cpu >= 0) return cpu; } return ksmodel_get_cpu_back(histo, LOWER_OVERFLOW_BIN, pid, false, col, nullptr); } /** Reimplemented event handler used to receive mouse move events. */ void KsGLWidget::mouseMoveEvent(QMouseEvent *event) { int bin, cpu, pid; size_t row; bool ret; if (_rubberBand.isVisible()) _rangeBoundStretched(_posInRange(event->pos().x())); bin = event->pos().x() - _hMargin; cpu = getPlotCPU(event->pos()); pid = getPlotPid(event->pos()); ret = _find(bin, cpu, pid, 5, false, &row); if (ret) { emit found(row); } else { if (cpu >= 0) { pid = _getLastTask(_model.histo(), bin, cpu); } if (pid > 0) { cpu = _getLastCPU(_model.histo(), bin, pid); } emit notFound(ksmodel_bin_ts(_model.histo(), bin), cpu, pid); } } /** Reimplemented event handler used to receive mouse release events. */ void KsGLWidget::mouseReleaseEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton) { size_t posMouseRel = _posInRange(event->pos().x()); int min, max; if (_posMousePress < posMouseRel) { min = _posMousePress - _hMargin; max = posMouseRel - _hMargin; } else { max = _posMousePress - _hMargin; min = posMouseRel - _hMargin; } _rangeChanged(min, max); } } /** Reimplemented event handler used to receive mouse double click events. */ void KsGLWidget::mouseDoubleClickEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton) _findAndSelect(event); } /** Reimplemented event handler used to receive mouse wheel events. */ void KsGLWidget::wheelEvent(QWheelEvent * event) { int zoomFocus; if (_mState->activeMarker()._isSet && _mState->activeMarker().isVisible()) { /* * Use the position of the marker as a focus point for the * zoom. */ zoomFocus = _mState->activeMarker()._bin; } else { /* * Use the position of the mouse as a focus point for the * zoom. */ zoomFocus = event->pos().x() - _hMargin; } if (event->delta() > 0) { _model.zoomIn(.05, zoomFocus); } else { _model.zoomOut(.05, zoomFocus); } _mState->updateMarkers(*_data, this); } /** Reimplemented event handler used to receive key press events. */ void KsGLWidget::keyPressEvent(QKeyEvent *event) { if (event->isAutoRepeat()) return; switch (event->key()) { case Qt::Key_Plus: emit zoomIn(); return; case Qt::Key_Minus: emit zoomOut(); return; case Qt::Key_Left: emit scrollLeft(); return; case Qt::Key_Right: emit scrollRight(); return; default: QOpenGLWidget::keyPressEvent(event); return; } } /** Reimplemented event handler used to receive key release events. */ void KsGLWidget::keyReleaseEvent(QKeyEvent *event) { if (event->isAutoRepeat()) return; if(event->key() == Qt::Key_Plus || event->key() == Qt::Key_Minus || event->key() == Qt::Key_Left || event->key() == Qt::Key_Right) { emit stopUpdating(); return; } QOpenGLWidget::keyPressEvent(event); return; } /** * @brief Load and show trace data. * * @param data: Input location for the KsDataStore object. * KsDataStore::loadDataFile() must be called first. */ void KsGLWidget::loadData(KsDataStore *data) { uint64_t tMin, tMax; int nCPUs, nBins; _data = data; /* * From the size of the widget, calculate the number of bins. * One bin will correspond to one pixel. */ nBins = width() - _hMargin * 2; nCPUs = tep_get_cpus(_data->tep()); _model.reset(); /* Now load the entire set of trace data. */ tMin = _data->rows()[0]->ts; tMax = _data->rows()[_data->size() - 1]->ts; ksmodel_set_bining(_model.histo(), nBins, tMin, tMax); _model.fill(_data->rows(), _data->size()); /* Make a default CPU list. All CPUs will be plotted. */ _cpuList = {}; for (int i = 0; i < nCPUs; ++i) _cpuList.append(i); /* Make a default task list. No tasks will be plotted. */ _taskList = {}; loadColors(); _makeGraphs(_cpuList, _taskList); } /** * Create a Hash table of Rainbow colors. The sorted Pid values are mapped to * the palette of Rainbow colors. */ void KsGLWidget::loadColors() { _pidColors.clear(); _pidColors = KsPlot::getTaskColorTable(); _cpuColors.clear(); _cpuColors = KsPlot::getCPUColorTable(); } /** * Position the graphical elements of the marker according to the current * position of the graphs inside the GL widget. */ void KsGLWidget::setMark(KsGraphMark *mark) { mark->_mark.setDPR(_dpr); mark->_mark.setX(mark->_bin + _hMargin); mark->_mark.setY(_vMargin / 2 + 2, height() - _vMargin); if (mark->_cpu >= 0) { mark->_mark.setCPUY(_graphs[mark->_cpu]->getBase()); mark->_mark.setCPUVisible(true); } else { mark->_mark.setCPUVisible(false); } if (mark->_task >= 0) { mark->_mark.setTaskY(_graphs[mark->_task]->getBase()); mark->_mark.setTaskVisible(true); } else { mark->_mark.setTaskVisible(false); } } /** * @brief Check if a given KernelShark entry is ploted. * * @param e: Input location for the KernelShark entry. * @param graphCPU: Output location for index of the CPU graph to which this * entry belongs. If such a graph does not exist the outputted * value is "-1". * @param graphTask: Output location for index of the Task graph to which this * entry belongs. If such a graph does not exist the * outputted value is "-1". */ void KsGLWidget::findGraphIds(const kshark_entry &e, int *graphCPU, int *graphTask) { int graph(0); bool cpuFound(false), taskFound(false); /* * Loop over all CPU graphs and try to find the one that * contains the entry. */ for (auto const &c: _cpuList) { if (c == e.cpu) { cpuFound = true; break; } ++graph; } if (cpuFound) *graphCPU = graph; else *graphCPU = -1; /* * Loop over all Task graphs and try to find the one that * contains the entry. */ graph = _cpuList.count(); for (auto const &p: _taskList) { if (p == e.pid) { taskFound = true; break; } ++graph; } if (taskFound) *graphTask = graph; else *graphTask = -1; } void KsGLWidget::_drawAxisX(float size) { KsPlot::Point a0(_hMargin, _vMargin / 4), a1(_hMargin, _vMargin / 2); KsPlot::Point b0(width() / 2, _vMargin / 4), b1(width() / 2, _vMargin / 2); KsPlot::Point c0(width() - _hMargin, _vMargin / 4), c1(width() - _hMargin, _vMargin / 2); a0._size = c0._size = _dpr; a0.draw(); c0.draw(); KsPlot::drawLine(a0, a1, {}, size); KsPlot::drawLine(b0, b1, {}, size); KsPlot::drawLine(c0, c1, {}, size); KsPlot::drawLine(a0, c0, {}, size); } void KsGLWidget::_makeGraphs(QVector cpuList, QVector taskList) { /* The very first thing to do is to clean up. */ for (auto &g: _graphs) delete g; _graphs.resize(0); if (!_data || !_data->size()) return; auto lamAddGraph = [&](KsPlot::Graph *graph) { /* * Calculate the base level of the CPU graph inside the widget. * Remember that the "Y" coordinate is inverted. */ if (!graph) return; int base = _vMargin + _vSpacing * _graphs.count() + KS_GRAPH_HEIGHT * (_graphs.count() + 1); graph->setBase(base); _graphs.append(graph); }; /* Create CPU graphs according to the cpuList. */ for (auto const &cpu: cpuList) lamAddGraph(_newCPUGraph(cpu)); /* Create Task graphs taskList to the taskList. */ for (auto const &pid: taskList) lamAddGraph(_newTaskGraph(pid)); } void KsGLWidget::_makePluginShapes(QVector cpuList, QVector taskList) { kshark_context *kshark_ctx(nullptr); kshark_event_handler *evt_handlers; KsCppArgV cppArgv; if (!kshark_instance(&kshark_ctx)) return; cppArgv._histo = _model.histo(); cppArgv._shapes = &_shapes; for (int g = 0; g < cpuList.count(); ++g) { cppArgv._graph = _graphs[g]; evt_handlers = kshark_ctx->event_handlers; while (evt_handlers) { evt_handlers->draw_func(cppArgv.toC(), cpuList[g], KSHARK_PLUGIN_CPU_DRAW); evt_handlers = evt_handlers->next; } } for (int g = 0; g < taskList.count(); ++g) { cppArgv._graph = _graphs[cpuList.count() + g]; evt_handlers = kshark_ctx->event_handlers; while (evt_handlers) { evt_handlers->draw_func(cppArgv.toC(), taskList[g], KSHARK_PLUGIN_TASK_DRAW); evt_handlers = evt_handlers->next; } } } KsPlot::Graph *KsGLWidget::_newCPUGraph(int cpu) { /* The CPU graph needs to know only the colors of the tasks. */ KsPlot::Graph *graph = new KsPlot::Graph(_model.histo(), &_pidColors, &_pidColors); graph->setZeroSuppressed(true); kshark_context *kshark_ctx(nullptr); kshark_entry_collection *col; if (!kshark_instance(&kshark_ctx)) return nullptr; graph->setHMargin(_hMargin); graph->setHeight(KS_GRAPH_HEIGHT); col = kshark_find_data_collection(kshark_ctx->collections, KsUtils::matchCPUVisible, cpu); graph->setDataCollectionPtr(col); graph->fillCPUGraph(cpu); return graph; } KsPlot::Graph *KsGLWidget::_newTaskGraph(int pid) { /* * The Task graph needs to know the colors of the tasks and the colors * of the CPUs. */ KsPlot::Graph *graph = new KsPlot::Graph(_model.histo(), &_pidColors, &_cpuColors); kshark_context *kshark_ctx(nullptr); kshark_entry_collection *col; if (!kshark_instance(&kshark_ctx)) return nullptr; graph->setHMargin(_hMargin); graph->setHeight(KS_GRAPH_HEIGHT); col = kshark_find_data_collection(kshark_ctx->collections, kshark_match_pid, pid); if (!col) { /* * If a data collection for this task does not exist, * register a new one. */ col = kshark_register_data_collection(kshark_ctx, _data->rows(), _data->size(), kshark_match_pid, pid, 25); } /* * Data collections are efficient only when used on graphs, having a * lot of empty bins. * TODO: Determine the optimal criteria to decide whether to use or * not use data collection for this graph. */ if (_data->size() < 1e6 && col && col->size && _data->size() / col->size < 100) { /* * No need to use collection in this case. Free the collection * data, but keep the collection registered. This will prevent * from recalculating the same collection next time when this * task is ploted. */ kshark_reset_data_collection(col); } graph->setDataCollectionPtr(col); graph->fillTaskGraph(pid); return graph; } /** * @brief Find the KernelShark entry under the the cursor. * * @param point: The position of the cursor. * @param variance: The variance of the position (range) in which an entry will * be searched. * @param joined: It True, search also in the associated CPU/Task graph. * @param index: Output location for the index of the entry under the cursor. * If no entry has been found, the outputted value is zero. * * @returns True, if an entry has been found, otherwise False. */ bool KsGLWidget::find(const QPoint &point, int variance, bool joined, size_t *index) { /* * Get the bin, pid and cpu numbers. * Remember that one bin corresponds to one pixel. */ int bin = point.x() - _hMargin; int cpu = getPlotCPU(point); int pid = getPlotPid(point); return _find(bin, cpu, pid, variance, joined, index); } int KsGLWidget::_getNextCPU(int pid, int bin) { kshark_context *kshark_ctx(nullptr); kshark_entry_collection *col; int cpu; if (!kshark_instance(&kshark_ctx)) return KS_EMPTY_BIN; col = kshark_find_data_collection(kshark_ctx->collections, kshark_match_pid, pid); if (!col) return KS_EMPTY_BIN; for (int i = bin; i < _model.histo()->n_bins; ++i) { cpu = ksmodel_get_cpu_front(_model.histo(), i, pid, false, col, nullptr); if (cpu >= 0) return cpu; } return KS_EMPTY_BIN; } bool KsGLWidget::_find(int bin, int cpu, int pid, int variance, bool joined, size_t *row) { int hSize = _model.histo()->n_bins; ssize_t found; if (bin < 0 || bin > hSize || (cpu < 0 && pid < 0)) { /* * The click is outside of the range of the histogram. * Do nothing. */ *row = 0; return false; } auto lamGetEntryByCPU = [&](int b) { /* Get the first data entry in this bin. */ found = ksmodel_first_index_at_cpu(_model.histo(), b, cpu); if (found < 0) { /* * The bin is empty or the entire connect of the bin * has been filtered. */ return false; } *row = found; return true; }; auto lamGetEntryByPid = [&](int b) { /* Get the first data entry in this bin. */ found = ksmodel_first_index_at_pid(_model.histo(), b, pid); if (found < 0) { /* * The bin is empty or the entire connect of the bin * has been filtered. */ return false; } *row = found; return true; }; auto lamFindEntryByCPU = [&](int b) { /* * The click is over the CPU graphs. First try the exact * match. */ if (lamGetEntryByCPU(bin)) return true; /* Now look for a match, nearby the position of the click. */ for (int i = 1; i < variance; ++i) { if (bin + i <= hSize && lamGetEntryByCPU(bin + i)) return true; if (bin - i >= 0 && lamGetEntryByCPU(bin - i)) return true; } *row = 0; return false; }; auto lamFindEntryByPid = [&](int b) { /* * The click is over the Task graphs. First try the exact * match. */ if (lamGetEntryByPid(bin)) return true; /* Now look for a match, nearby the position of the click. */ for (int i = 1; i < variance; ++i) { if ((bin + i <= hSize) && lamGetEntryByPid(bin + i)) return true; if ((bin - i >= 0) && lamGetEntryByPid(bin - i)) return true; } *row = 0; return false; }; if (cpu >= 0) return lamFindEntryByCPU(bin); if (pid >= 0) { bool ret = lamFindEntryByPid(bin); /* * If no entry has been found and we have a joined search, look * for an entry on the next CPU used by this task. */ if (!ret && joined) { cpu = _getNextCPU(pid, bin); ret = lamFindEntryByCPU(bin); } return ret; } *row = 0; return false; } bool KsGLWidget::_findAndSelect(QMouseEvent *event) { size_t row; bool found = find(event->pos(), 10, true, &row); if (found) { emit select(row); emit updateView(row, true); } return found; } void KsGLWidget::_rangeBoundInit(int x) { /* * Set the origin of the rubber band that shows the new range. Only * the X coordinate of the origin matters. The Y coordinate will be * set to zero. */ _rubberBandOrigin.rx() = x; _rubberBandOrigin.ry() = 0; _rubberBand.setGeometry(_rubberBandOrigin.x(), _rubberBandOrigin.y(), 0, 0); /* Make the rubber band visible, although its size is zero. */ _rubberBand.show(); } void KsGLWidget::_rangeBoundStretched(int x) { QPoint pos; pos.rx() = x; pos.ry() = this->height(); /* * Stretch the rubber band between the origin position and the current * position of the mouse. Only the X coordinate matters. The Y * coordinate will be the height of the widget. */ if (_rubberBandOrigin.x() < pos.x()) { _rubberBand.setGeometry(QRect(_rubberBandOrigin.x(), _rubberBandOrigin.y(), pos.x() - _rubberBandOrigin.x(), pos.y() - _rubberBandOrigin.y())); } else { _rubberBand.setGeometry(QRect(pos.x(), _rubberBandOrigin.y(), _rubberBandOrigin.x() - pos.x(), pos.y() - _rubberBandOrigin.y())); } } void KsGLWidget::_rangeChanged(int binMin, int binMax) { size_t nBins = _model.histo()->n_bins; int binMark = _mState->activeMarker()._bin; uint64_t min, max; /* The rubber band is no longer needed. Make it invisible. */ _rubberBand.hide(); if ( (binMax - binMin) < 4) { /* Most likely this is an accidental click. Do nothing. */ return; } /* * Calculate the new range of the histogram. The number of bins will * stay the same. */ min = ksmodel_bin_ts(_model.histo(), binMin); max = ksmodel_bin_ts(_model.histo(), binMax); if (max - min < nBins) { /* * The range cannot be smaller than the number of bins. * Do nothing. */ return; } /* Recalculate the model and update the markers. */ ksmodel_set_bining(_model.histo(), nBins, min, max); _model.fill(_data->rows(), _data->size()); _mState->updateMarkers(*_data, this); /* * If the Marker is inside the new range, make sure that it will * be visible in the table. Note that for this check we use the * bin number of the marker, retrieved before its update. */ if (_mState->activeMarker()._isSet && binMark < binMax && binMark > binMin) { emit updateView(_mState->activeMarker()._pos, true); return; } /* * Find the first bin which contains unfiltered data and send a signal * to the View widget to make this data visible. */ for (int bin = 0; bin < _model.histo()->n_bins; ++bin) { int64_t row = ksmodel_first_index_at_bin(_model.histo(), bin); if (row != KS_EMPTY_BIN && (_data->rows()[row]->visible & KS_TEXT_VIEW_FILTER_MASK)) { emit updateView(row, false); return; } } } int KsGLWidget::_posInRange(int x) { int posX; if (x < _hMargin) posX = _hMargin; else if (x > (width() - _hMargin)) posX = width() - _hMargin; else posX = x; return posX; } /** Get the CPU Id of the Graph plotted at given position. */ int KsGLWidget::getPlotCPU(const QPoint &point) { int cpuId, y = point.y(); if (_cpuList.count() == 0) return -1; cpuId = (y - _vMargin + _vSpacing / 2) / (_vSpacing + KS_GRAPH_HEIGHT); if (cpuId < 0 || cpuId >= _cpuList.count()) return -1; return _cpuList[cpuId]; } /** Get the CPU Id of the Graph plotted at given position. */ int KsGLWidget::getPlotPid(const QPoint &point) { int pidId, y = point.y(); if (_taskList.count() == 0) return -1; pidId = (y - _vMargin - _cpuList.count()*(KS_GRAPH_HEIGHT + _vSpacing) + _vSpacing / 2) / (_vSpacing + KS_GRAPH_HEIGHT); if (pidId < 0 || pidId >= _taskList.count()) return -1; return _taskList[pidId]; } trace-cmd-2.8.3/kernel-shark/src/KsGLWidget.hpp000066400000000000000000000112301351617527000212210ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsGLWidget.hpp * @brief OpenGL widget for plotting trace graphs. */ #ifndef _KS_GLWIDGET_H #define _KS_GLWIDGET_H // Qt #include // KernelShark #include "KsUtils.hpp" #include "KsPlotTools.hpp" #include "KsModels.hpp" #include "KsDualMarker.hpp" /** * The KsGLWidget class provides a widget for rendering OpenGL graphics used * to plot trace graphs. */ class KsGLWidget : public QOpenGLWidget { Q_OBJECT public: explicit KsGLWidget(QWidget *parent = NULL); ~KsGLWidget(); void initializeGL() override; void resizeGL(int w, int h) override; void paintGL() override; void reset(); /** Reprocess all graphs. */ void update() {resizeGL(width(), height());} void mousePressEvent(QMouseEvent *event); void mouseMoveEvent(QMouseEvent *event); void mouseReleaseEvent(QMouseEvent *event); void mouseDoubleClickEvent(QMouseEvent *event); void wheelEvent(QWheelEvent * event); void keyPressEvent(QKeyEvent *event); void keyReleaseEvent(QKeyEvent *event); void loadData(KsDataStore *data); void loadColors(); /** * Provide the widget with a pointer to the Dual Marker state machine * object. */ void setMarkerSM(KsDualMarkerSM *m) {_mState = m;} /** Get the KsGraphModel object. */ KsGraphModel *model() {return &_model;} /** Get the number of CPU graphs. */ int cpuGraphCount() const {return _cpuList.count();} /** Get the number of Task graphs. */ int taskGraphCount() const {return _taskList.count();} /** Get the total number of graphs. */ int graphCount() const {return _cpuList.count() + _taskList.count();} /** Get the height of the widget. */ int height() const { return graphCount() * (KS_GRAPH_HEIGHT + _vSpacing) + _vMargin * 2; } /** Get the device pixel ratio. */ int dpr() const {return _dpr;} /** Get the size of the horizontal margin space. */ int hMargin() const {return _hMargin;} /** Get the size of the vertical margin space. */ int vMargin() const {return _vMargin;} /** Get the size of the vertical spaceing between the graphs. */ int vSpacing() const {return _vSpacing;} void setMark(KsGraphMark *mark); void findGraphIds(const kshark_entry &e, int *graphCPU, int *graphTask); bool find(const QPoint &point, int variance, bool joined, size_t *index); int getPlotCPU(const QPoint &point); int getPlotPid(const QPoint &point); /** CPUs to be plotted. */ QVector _cpuList; /** Tasks to be plotted. */ QVector _taskList; signals: /** * This signal is emitted when the mouse moves over a visible * KernelShark entry. */ void found(size_t pos); /** * This signal is emitted when the mouse moves but there is no visible * KernelShark entry under the cursor. */ void notFound(uint64_t ts, int cpu, int pid); /** This signal is emitted when the Plus key is pressed. */ void zoomIn(); /** This signal is emitted when the Minus key is pressed. */ void zoomOut(); /** This signal is emitted when the Left Arrow key is pressed. */ void scrollLeft(); /** This signal is emitted when the Right Arrow key is pressed. */ void scrollRight(); /** * This signal is emitted when one of the 4 Action keys is release * (after being pressed). */ void stopUpdating(); /** * This signal is emitted in the case of a double click over a visible * KernelShark entry. */ void select(size_t pos); /** * This signal is emitted when the KsTraceViewer widget needs to be * updated. */ void updateView(size_t pos, bool mark); private: QVector _graphs; KsPlot::PlotObjList _shapes; KsPlot::ColorTable _pidColors; KsPlot::ColorTable _cpuColors; int _hMargin, _vMargin; unsigned int _vSpacing; KsGraphModel _model; KsDualMarkerSM *_mState; KsDataStore *_data; QRubberBand _rubberBand; QPoint _rubberBandOrigin; size_t _posMousePress; bool _keyPressed; int _dpr; void _drawAxisX(float size); void _makeGraphs(QVector cpuMask, QVector taskMask); KsPlot::Graph *_newCPUGraph(int cpu); KsPlot::Graph *_newTaskGraph(int pid); void _makePluginShapes(QVector cpuMask, QVector taskMask); int _posInRange(int x); void _rangeBoundInit(int x); void _rangeBoundStretched(int x); void _rangeChanged(int binMin, int binMax); bool _findAndSelect(QMouseEvent *event); bool _find(int bin, int cpu, int pid, int variance, bool joined, size_t *row); int _getNextCPU(int pid, int bin); int _getLastTask(struct kshark_trace_histo *histo, int bin, int cpu); int _getLastCPU(struct kshark_trace_histo *histo, int bin, int pid); void _deselect(); }; #endif trace-cmd-2.8.3/kernel-shark/src/KsMainWindow.cpp000066400000000000000000000731261351617527000216360ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsMainWindow.cpp * @brief KernelShark GUI main window. */ // C #include #include #include // C++11 #include // Qt #include #include #include #include #include // KernelShark #include "libkshark.h" #include "KsCmakeDef.hpp" #include "KsMainWindow.hpp" #include "KsCaptureDialog.hpp" #include "KsAdvFilteringDialog.hpp" /** Create KernelShark Main window. */ KsMainWindow::KsMainWindow(QWidget *parent) : QMainWindow(parent), _splitter(Qt::Vertical, this), _data(this), _view(this), _graph(this), _mState(this), _plugins(this), _capture(this), _captureLocalServer(this), _openAction("Open", this), _restoreSessionAction("Restore Last Session", this), _importSessionAction("Import Session", this), _exportSessionAction("Export Sassion", this), _quitAction("Quit", this), _importFilterAction("Import Filter", this), _exportFilterAction("Export Filter", this), _graphFilterSyncCBox(nullptr), _listFilterSyncCBox(nullptr), _showEventsAction("Show events", this), _showTasksAction("Show tasks", this), _showCPUsAction("Show CPUs", this), _advanceFilterAction("Advance Filtering", this), _clearAllFilters("Clear all filters", this), _cpuSelectAction("CPUs", this), _taskSelectAction("Tasks", this), _managePluginsAction("Manage plugins", this), _addPluginsAction("Add plugins", this), _captureAction("Record", this), _colorAction(this), _colSlider(this), _colorPhaseSlider(Qt::Horizontal, this), _fullScreenModeAction("Full Screen Mode", this), _aboutAction("About", this), _contentsAction("Contents", this), _bugReportAction("Report a bug", this), _deselectShortcut(this), _settings("kernelshark.org", "Kernel Shark") // organization , application { setWindowTitle("Kernel Shark"); _createActions(); _createMenus(); _initCapture(); _splitter.addWidget(&_graph); _splitter.addWidget(&_view); setCentralWidget(&_splitter); connect(&_splitter, &QSplitter::splitterMoved, this, &KsMainWindow::_splitterMoved); _view.setMarkerSM(&_mState); connect(&_mState, &KsDualMarkerSM::markSwitchForView, &_view, &KsTraceViewer::markSwitch); _graph.setMarkerSM(&_mState); connect(&_mState, &KsDualMarkerSM::updateGraph, &_graph, &KsTraceGraph::markEntry); connect(&_mState, &KsDualMarkerSM::updateView, &_view, &KsTraceViewer::showRow); connect(&_view, &KsTraceViewer::select, &_graph, &KsTraceGraph::markEntry); connect(&_view, &KsTraceViewer::addTaskPlot, &_graph, &KsTraceGraph::addTaskPlot); connect(_graph.glPtr(), &KsGLWidget::updateView, &_view, &KsTraceViewer::showRow); connect(&_graph, &KsTraceGraph::deselect, this, &KsMainWindow::_deselectActive); connect(&_view, &KsTraceViewer::deselect, this, &KsMainWindow::_deselectActive); connect(&_data, &KsDataStore::updateWidgets, &_view, &KsTraceViewer::update); connect(&_data, &KsDataStore::updateWidgets, &_graph, &KsTraceGraph::update); connect(&_plugins, &KsPluginManager::dataReload, &_data, &KsDataStore::reload); _deselectShortcut.setKey(Qt::CTRL + Qt::Key_D); connect(&_deselectShortcut, &QShortcut::activated, this, &KsMainWindow::_deselectActive); connect(&_mState, &KsDualMarkerSM::deselectA, this, &KsMainWindow::_deselectA); connect(&_mState, &KsDualMarkerSM::deselectB, this, &KsMainWindow::_deselectB); _lastDataFilePath = _settings.value("dataPath").toString(); _lastConfFilePath = _settings.value("confPath").toString(); _lastPluginFilePath = _settings.value("pluginPath").toString(); _resizeEmpty(); } /** Destroy KernelShark Main window. */ KsMainWindow::~KsMainWindow() { kshark_context *kshark_ctx(nullptr); QString file = lastSessionFile(); if (!file.isEmpty()) { QByteArray fileBA = file.toLocal8Bit(); _updateSession(); kshark_save_config_file(fileBA.data(), _session.getConfDocPtr()); } _settings.setValue("dataPath", _lastDataFilePath); _settings.setValue("confPath", _lastConfFilePath); _settings.setValue("pluginPath", _lastPluginFilePath); _data.clear(); if (kshark_instance(&kshark_ctx)) kshark_free(kshark_ctx); } /** * Reimplemented event handler used to update the geometry of the window on * resize events. */ void KsMainWindow::resizeEvent(QResizeEvent* event) { QMainWindow::resizeEvent(event); _session.saveMainWindowSize(*this); _session.saveSplitterSize(_splitter); } void KsMainWindow::_createActions() { /* File menu */ _openAction.setIcon(QIcon::fromTheme("document-open")); _openAction.setShortcut(tr("Ctrl+O")); _openAction.setStatusTip("Open an existing data file"); connect(&_openAction, &QAction::triggered, this, &KsMainWindow::_open); _restoreSessionAction.setIcon(QIcon::fromTheme("document-open-recent")); connect(&_restoreSessionAction, &QAction::triggered, this, &KsMainWindow::_restoreSession); _importSessionAction.setIcon(QIcon::fromTheme("document-send")); _importSessionAction.setStatusTip("Load a session"); connect(&_importSessionAction, &QAction::triggered, this, &KsMainWindow::_importSession); _exportSessionAction.setIcon(QIcon::fromTheme("document-revert")); _exportSessionAction.setStatusTip("Export this session"); connect(&_exportSessionAction, &QAction::triggered, this, &KsMainWindow::_exportSession); _quitAction.setIcon(QIcon::fromTheme("window-close")); _quitAction.setShortcut(tr("Ctrl+Q")); _quitAction.setStatusTip("Exit KernelShark"); connect(&_quitAction, &QAction::triggered, this, &KsMainWindow::close); /* Filter menu */ _importFilterAction.setIcon(QIcon::fromTheme("document-send")); _importFilterAction.setStatusTip("Load a filter"); connect(&_importFilterAction, &QAction::triggered, this, &KsMainWindow::_importFilter); _exportFilterAction.setIcon(QIcon::fromTheme("document-revert")); _exportFilterAction.setStatusTip("Export a filter"); connect(&_exportFilterAction, &QAction::triggered, this, &KsMainWindow::_exportFilter); connect(&_showEventsAction, &QAction::triggered, this, &KsMainWindow::_showEvents); connect(&_showTasksAction, &QAction::triggered, this, &KsMainWindow::_showTasks); connect(&_showCPUsAction, &QAction::triggered, this, &KsMainWindow::_showCPUs); connect(&_advanceFilterAction, &QAction::triggered, this, &KsMainWindow::_advancedFiltering); connect(&_clearAllFilters, &QAction::triggered, this, &KsMainWindow::_clearFilters); /* Plot menu */ connect(&_cpuSelectAction, &QAction::triggered, this, &KsMainWindow::_cpuSelect); connect(&_taskSelectAction, &QAction::triggered, this, &KsMainWindow::_taskSelect); /* Tools menu */ _managePluginsAction.setShortcut(tr("Ctrl+P")); _managePluginsAction.setIcon(QIcon::fromTheme("preferences-system")); _managePluginsAction.setStatusTip("Manage plugins"); connect(&_managePluginsAction, &QAction::triggered, this, &KsMainWindow::_pluginSelect); _addPluginsAction.setIcon(QIcon::fromTheme("applications-engineering")); _addPluginsAction.setStatusTip("Add plugins"); connect(&_addPluginsAction, &QAction::triggered, this, &KsMainWindow::_pluginAdd); _captureAction.setIcon(QIcon::fromTheme("media-record")); _captureAction.setShortcut(tr("Ctrl+R")); _captureAction.setStatusTip("Capture trace data"); connect(&_captureAction, &QAction::triggered, this, &KsMainWindow::_record); _colorPhaseSlider.setMinimum(20); _colorPhaseSlider.setMaximum(180); _colorPhaseSlider.setValue(KsPlot::Color::getRainbowFrequency() * 100); _colorPhaseSlider.setFixedWidth(FONT_WIDTH * 15); connect(&_colorPhaseSlider, &QSlider::valueChanged, this, &KsMainWindow::_setColorPhase); _colSlider.setLayout(new QHBoxLayout); _colSlider.layout()->addWidget(new QLabel("Color scheme", this)); _colSlider.layout()->addWidget(&_colorPhaseSlider); _colorAction.setDefaultWidget(&_colSlider); _fullScreenModeAction.setIcon(QIcon::fromTheme("view-fullscreen")); _fullScreenModeAction.setShortcut(tr("Ctrl+Shift+F")); _fullScreenModeAction.setStatusTip("Full Screen Mode"); connect(&_fullScreenModeAction, &QAction::triggered, this, &KsMainWindow::_changeScreenMode); /* Help menu */ _aboutAction.setIcon(QIcon::fromTheme("help-about")); connect(&_aboutAction, &QAction::triggered, this, &KsMainWindow::_aboutInfo); _contentsAction.setIcon(QIcon::fromTheme("help-contents")); connect(&_contentsAction, &QAction::triggered, this, &KsMainWindow::_contents); connect(&_bugReportAction, &QAction::triggered, this, &KsMainWindow::_bugReport); } void KsMainWindow::_createMenus() { QMenu *file, *sessions, *filter, *plots, *tools, *help; kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; /* File menu */ file = menuBar()->addMenu("File"); file->addAction(&_openAction); sessions = file->addMenu("Sessions"); sessions->setIcon(QIcon::fromTheme("document-properties")); sessions->addAction(&_restoreSessionAction); sessions->addAction(&_importSessionAction); sessions->addAction(&_exportSessionAction); file->addAction(&_quitAction); /* Filter menu */ filter = menuBar()->addMenu("Filter"); connect(filter, &QMenu::aboutToShow, this, &KsMainWindow::_updateFilterMenu); filter->addAction(&_importFilterAction); filter->addAction(&_exportFilterAction); /* * Set the default filter mask. Filter will apply to both View and * Graph. */ kshark_ctx->filter_mask = KS_TEXT_VIEW_FILTER_MASK | KS_GRAPH_VIEW_FILTER_MASK; kshark_ctx->filter_mask |= KS_EVENT_VIEW_FILTER_MASK; _graphFilterSyncCBox = KsUtils::addCheckBoxToMenu(filter, "Apply filters to Graph"); _graphFilterSyncCBox->setChecked(true); connect(_graphFilterSyncCBox, &QCheckBox::stateChanged, this, &KsMainWindow::_graphFilterSync); _listFilterSyncCBox = KsUtils::addCheckBoxToMenu(filter, "Apply filters to List"); _listFilterSyncCBox->setChecked(true); connect(_listFilterSyncCBox, &QCheckBox::stateChanged, this, &KsMainWindow::_listFilterSync); filter->addAction(&_showEventsAction); filter->addAction(&_showTasksAction); filter->addAction(&_showCPUsAction); filter->addAction(&_advanceFilterAction); filter->addAction(&_clearAllFilters); /* Plot menu */ plots = menuBar()->addMenu("Plots"); plots->addAction(&_cpuSelectAction); plots->addAction(&_taskSelectAction); /* Tools menu */ tools = menuBar()->addMenu("Tools"); tools->addAction(&_managePluginsAction); tools->addAction(&_addPluginsAction); tools->addAction(&_captureAction); tools->addSeparator(); tools->addAction(&_colorAction); tools->addAction(&_fullScreenModeAction); /* Help menu */ help = menuBar()->addMenu("Help"); help->addAction(&_aboutAction); help->addAction(&_contentsAction); help->addAction(&_bugReportAction); } void KsMainWindow::_open() { QString fileName; fileName = KsUtils::getFile(this, "Open File", "trace-cmd files (*.dat);;All files (*)", _lastDataFilePath); if (!fileName.isEmpty()) loadDataFile(fileName); } QString KsMainWindow::_getCacheDir() { QString dir; auto lamMakePath = [&] (bool ask) { if (ask) { QMessageBox::StandardButton reply; QString err("KernelShark cache directory not found!\n"); QString question = QString("Do you want to create %1").arg(dir); reply = QMessageBox::question(this, "KernelShark", err + question, QMessageBox::Yes | QMessageBox::No); if (reply == QMessageBox::No) { dir.clear(); return; } } QDir().mkpath(dir); }; dir = getenv("KS_USER_CACHE_DIR"); if (!dir.isEmpty()) { if (!QDir(dir).exists()) lamMakePath(true); } else { auto appCachePath = QStandardPaths::GenericCacheLocation; dir = QStandardPaths::writableLocation(appCachePath); dir += "/kernelshark"; if (!QDir(dir).exists()) lamMakePath(false); } return dir; } /** Get the description file of the last session. */ QString KsMainWindow::lastSessionFile() { QString file; file = _getCacheDir(); if (!file.isEmpty()) file += "/lastsession.json"; return file; } void KsMainWindow::_restoreSession() { loadSession(lastSessionFile()); } void KsMainWindow::_importSession() { QString fileName; fileName = KsUtils::getFile(this, "Import Session", "Kernel Shark Config files (*.json);;", _lastConfFilePath); if (fileName.isEmpty()) return; loadSession(fileName); } void KsMainWindow::_updateSession() { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; _session.saveGraphs(*_graph.glPtr()); _session.saveVisModel(_graph.glPtr()->model()->histo()); _session.saveFilters(kshark_ctx); _session.saveDualMarker(&_mState); _session.saveTable(_view); _session.saveColorScheme(); _session.savePlugins(_plugins); } void KsMainWindow::_exportSession() { QString fileName; fileName = KsUtils::getSaveFile(this, "Export Filter", "Kernel Shark Config files (*.json);;", ".json", _lastConfFilePath); if (fileName.isEmpty()) return; _updateSession(); _session.exportToFile(fileName); } void KsMainWindow::_filterSyncCBoxUpdate(kshark_context *kshark_ctx) { if (kshark_ctx->filter_mask & KS_TEXT_VIEW_FILTER_MASK) _listFilterSyncCBox->setChecked(true); else _listFilterSyncCBox->setChecked(false); if (kshark_ctx->filter_mask & (KS_GRAPH_VIEW_FILTER_MASK | KS_EVENT_VIEW_FILTER_MASK)) _graphFilterSyncCBox->setChecked(true); else _graphFilterSyncCBox->setChecked(false); } void KsMainWindow::_updateFilterMenu() { kshark_context *kshark_ctx(nullptr); if (kshark_instance(&kshark_ctx)) _filterSyncCBoxUpdate(kshark_ctx); } void KsMainWindow::_importFilter() { kshark_context *kshark_ctx(nullptr); kshark_config_doc *conf; QString fileName; if (!kshark_instance(&kshark_ctx) || _data.size() < 1) return; fileName = KsUtils::getFile(this, "Import Filter", "Kernel Shark Config files (*.json);;", _lastConfFilePath); if (fileName.isEmpty()) return; conf = kshark_open_config_file(fileName.toStdString().c_str(), "kshark.config.filter"); if (!conf) return; kshark_import_all_event_filters(kshark_ctx, conf); kshark_free_config_doc(conf); kshark_filter_entries(kshark_ctx, _data.rows(), _data.size()); _filterSyncCBoxUpdate(kshark_ctx); emit _data.updateWidgets(&_data); } void KsMainWindow::_exportFilter() { kshark_context *kshark_ctx(nullptr); kshark_config_doc *conf(nullptr); QString fileName; if (!kshark_instance(&kshark_ctx)) return; fileName = KsUtils::getSaveFile(this, "Export Filter", "Kernel Shark Config files (*.json);;", ".json", _lastConfFilePath); if (fileName.isEmpty()) return; kshark_export_all_event_filters(kshark_ctx, &conf); kshark_save_config_file(fileName.toStdString().c_str(), conf); kshark_free_config_doc(conf); } void KsMainWindow::_listFilterSync(int state) { KsUtils::listFilterSync(state); _data.update(); } void KsMainWindow::_graphFilterSync(int state) { KsUtils::graphFilterSync(state); _data.update(); } void KsMainWindow::_showEvents() { kshark_context *kshark_ctx(nullptr); KsCheckBoxWidget *events_cb; KsCheckBoxDialog *dialog; if (!kshark_instance(&kshark_ctx)) return; events_cb = new KsEventsCheckBoxWidget(_data.tep(), this); dialog = new KsCheckBoxDialog(events_cb, this); if (!kshark_ctx->show_event_filter || !kshark_ctx->show_event_filter->count) { events_cb->setDefault(true); } else { /* * The event filter contains IDs. Make this visible in the * CheckBox Widget. */ tep_event **events = tep_list_events(_data.tep(), TEP_EVENT_SORT_SYSTEM); int nEvts = tep_get_events_count(_data.tep()); QVector v(nEvts, false); for (int i = 0; i < nEvts; ++i) { if (tracecmd_filter_id_find(kshark_ctx->show_event_filter, events[i]->id)) v[i] = true; } events_cb->set(v); } connect(dialog, &KsCheckBoxDialog::apply, &_data, &KsDataStore::applyPosEventFilter); dialog->show(); } void KsMainWindow::_showTasks() { kshark_context *kshark_ctx(nullptr); KsCheckBoxWidget *tasks_cbd; KsCheckBoxDialog *dialog; if (!kshark_instance(&kshark_ctx)) return; tasks_cbd = new KsTasksCheckBoxWidget(_data.tep(), true, this); dialog = new KsCheckBoxDialog(tasks_cbd, this); if (!kshark_ctx->show_task_filter || !kshark_ctx->show_task_filter->count) { tasks_cbd->setDefault(true); } else { QVector pids = KsUtils::getPidList(); int nPids = pids.count(); QVector v(nPids, false); for (int i = 0; i < nPids; ++i) { if (tracecmd_filter_id_find(kshark_ctx->show_task_filter, pids[i])) v[i] = true; } tasks_cbd->set(v); } connect(dialog, &KsCheckBoxDialog::apply, &_data, &KsDataStore::applyPosTaskFilter); dialog->show(); } void KsMainWindow::_hideTasks() { kshark_context *kshark_ctx(nullptr); KsCheckBoxWidget *tasks_cbd; KsCheckBoxDialog *dialog; if (!kshark_instance(&kshark_ctx)) return; tasks_cbd = new KsTasksCheckBoxWidget(_data.tep(), false, this); dialog = new KsCheckBoxDialog(tasks_cbd, this); if (!kshark_ctx->hide_task_filter || !kshark_ctx->hide_task_filter->count) { tasks_cbd->setDefault(false); } else { QVector pids = KsUtils::getPidList(); int nPids = pids.count(); QVector v(nPids, false); for (int i = 0; i < nPids; ++i) { if (tracecmd_filter_id_find(kshark_ctx->hide_task_filter, pids[i])) v[i] = true; } tasks_cbd->set(v); } connect(dialog, &KsCheckBoxDialog::apply, &_data, &KsDataStore::applyNegTaskFilter); dialog->show(); } void KsMainWindow::_showCPUs() { kshark_context *kshark_ctx(nullptr); KsCheckBoxWidget *cpu_cbd; KsCheckBoxDialog *dialog; if (!kshark_instance(&kshark_ctx)) return; cpu_cbd = new KsCPUCheckBoxWidget(_data.tep(), this); dialog = new KsCheckBoxDialog(cpu_cbd, this); if (!kshark_ctx->show_cpu_filter || !kshark_ctx->show_cpu_filter->count) { cpu_cbd->setDefault(true); } else { int nCPUs = tep_get_cpus(_data.tep()); QVector v(nCPUs, false); for (int i = 0; i < nCPUs; ++i) { if (tracecmd_filter_id_find(kshark_ctx->show_cpu_filter, i)) v[i] = true; } cpu_cbd->set(v); } connect(dialog, &KsCheckBoxDialog::apply, &_data, &KsDataStore::applyPosCPUFilter); dialog->show(); } void KsMainWindow::_hideCPUs() { kshark_context *kshark_ctx(nullptr); KsCheckBoxWidget *cpu_cbd; KsCheckBoxDialog *dialog; if (!kshark_instance(&kshark_ctx)) return; cpu_cbd = new KsCPUCheckBoxWidget(_data.tep(), this); dialog = new KsCheckBoxDialog(cpu_cbd, this); if (!kshark_ctx->hide_cpu_filter || !kshark_ctx->hide_cpu_filter->count) { cpu_cbd->setDefault(false); } else { int nCPUs = tep_get_cpus(_data.tep()); QVector v(nCPUs, false); for (int i = 0; i < nCPUs; ++i) { if (tracecmd_filter_id_find(kshark_ctx->hide_cpu_filter, i)) v[i] = true; } cpu_cbd->set(v); } connect(dialog, &KsCheckBoxDialog::apply, &_data, &KsDataStore::applyNegCPUFilter); dialog->show(); } void KsMainWindow::_advancedFiltering() { KsAdvFilteringDialog *dialog; if (!_data.tep()) { QErrorMessage *em = new QErrorMessage(this); QString text("Unable to open Advanced filtering dialog."); text += " Tracing data has to be loaded first."; em->showMessage(text, "advancedFiltering"); qCritical() << "ERROR: " << text; return; } dialog = new KsAdvFilteringDialog(this); connect(dialog, &KsAdvFilteringDialog::dataReload, &_data, &KsDataStore::reload); dialog->show(); } void KsMainWindow::_clearFilters() { _data.clearAllFilters(); } void KsMainWindow::_cpuSelect() { KsCheckBoxWidget *cpus_cbd = new KsCPUCheckBoxWidget(_data.tep(), this); KsCheckBoxDialog *dialog = new KsCheckBoxDialog(cpus_cbd, this); if(_data.tep()) { int nCPUs = tep_get_cpus(_data.tep()); if (nCPUs == _graph.glPtr()->cpuGraphCount()) { cpus_cbd->setDefault(true); } else { QVector v(nCPUs, false); for (auto const &cpu: _graph.glPtr()->_cpuList) v[cpu] = true; cpus_cbd->set(v); } } connect(dialog, &KsCheckBoxDialog::apply, &_graph, &KsTraceGraph::cpuReDraw); dialog->show(); } void KsMainWindow::_taskSelect() { KsCheckBoxWidget *tasks_cbd = new KsTasksCheckBoxWidget(_data.tep(), true, this); KsCheckBoxDialog *dialog = new KsCheckBoxDialog(tasks_cbd, this); QVector pids = KsUtils::getPidList(); int nPids = pids.count(); if (nPids == _graph.glPtr()->taskGraphCount()) { tasks_cbd->setDefault(true); } else { QVector v(nPids, false); for (int i = 0; i < nPids; ++i) { for (auto const &pid: _graph.glPtr()->_taskList) { if (pids[i] == pid) { v[i] = true; break; } } } tasks_cbd->set(v); } connect(dialog, &KsCheckBoxDialog::apply, &_graph, &KsTraceGraph::taskReDraw); dialog->show(); } void KsMainWindow::_pluginSelect() { KsCheckBoxWidget *plugin_cbd; KsCheckBoxDialog *dialog; QVector registeredPlugins; QStringList plugins; plugins << _plugins._ksPluginList << _plugins._userPluginList; registeredPlugins << _plugins._registeredKsPlugins << _plugins._registeredUserPlugins; plugin_cbd = new KsPluginCheckBoxWidget(plugins, this); plugin_cbd->set(registeredPlugins); dialog = new KsCheckBoxDialog(plugin_cbd, this); connect(dialog, &KsCheckBoxDialog::apply, &_plugins, &KsPluginManager::updatePlugins); dialog->show(); } void KsMainWindow::_pluginAdd() { QStringList fileNames; fileNames = KsUtils::getFiles(this, "Add KernelShark plugins", "KernelShark Plugins (*.so);;", _lastPluginFilePath); if (!fileNames.isEmpty()) _plugins.addPlugins(fileNames); } void KsMainWindow::_record() { #ifndef DO_AS_ROOT QErrorMessage *em = new QErrorMessage(this); QString message; message = "Record is currently not supported."; message += " Install \"pkexec\" and then do:
    "; message += " cd build
    sudo ./cmake_uninstall.sh
    "; message += " ./cmake_clean.sh
    cmake ..
    make
    "; message += " sudo make install"; em->showMessage(message); qCritical() << "ERROR: " << message; return; #endif _capture.start(); } void KsMainWindow::_setColorPhase(int f) { KsPlot::Color::setRainbowFrequency(f / 100.); _graph.glPtr()->model()->update(); } void KsMainWindow::_changeScreenMode() { if (isFullScreen()) { _fullScreenModeAction.setText("Full Screen Mode"); _fullScreenModeAction.setIcon(QIcon::fromTheme("view-fullscreen")); showNormal(); } else { _fullScreenModeAction.setText("Exit Full Screen Mode"); _fullScreenModeAction.setIcon(QIcon::fromTheme("view-restore")); showFullScreen(); } } void KsMainWindow::_aboutInfo() { KsMessageDialog *message; QString text; text.append(" KernelShark\n\n version: "); text.append(KS_VERSION_STRING); text.append("\n"); message = new KsMessageDialog(text); message->setWindowTitle("About"); message->show(); } void KsMainWindow::_contents() { QDesktopServices::openUrl(QUrl("http://kernelshark.org/", QUrl::TolerantMode)); } void KsMainWindow::_bugReport() { QUrl bugs("https://bugzilla.kernel.org/buglist.cgi?component=Trace-cmd%2FKernelshark&product=Tools&resolution=---", QUrl::TolerantMode); QDesktopServices::openUrl(bugs); } /** Load trace data for file. */ void KsMainWindow::loadDataFile(const QString& fileName) { char buff[FILENAME_MAX]; QString pbLabel("Loading "); bool loadDone = false; struct stat st; int ret; ret = stat(fileName.toStdString().c_str(), &st); if (ret != 0) { QString text("Unable to find file "); text.append(fileName); text.append("."); _error(text, "loadDataErr1", true, true); return; } qInfo() << "Loading " << fileName; _mState.reset(); _view.reset(); _graph.reset(); if (fileName.size() < 40) { pbLabel += fileName; } else { pbLabel += "..."; pbLabel += fileName.mid(fileName.size() - 37, 37); } setWindowTitle("Kernel Shark"); KsProgressBar pb(pbLabel); QApplication::processEvents(); auto lamLoadJob = [&](KsDataStore *d) { d->loadDataFile(fileName); loadDone = true; }; std::thread tload(lamLoadJob, &_data); for (int i = 0; i < 160; ++i) { /* * TODO: The way this progress bar gets updated here is a pure * cheat. See if this can be implemented better. */ if (loadDone) break; pb.setValue(i); usleep(150000); } tload.join(); if (_data.size() < 1) { QString text("No data was loaded from file "); text.append(fileName + "."); _error(text, "loadDataErr2", true, true); return; } pb.setValue(165); _view.loadData(&_data); pb.setValue(180); _graph.loadData(&_data); pb.setValue(195); setWindowTitle("Kernel Shark (" + fileName + ")"); if (realpath(fileName.toStdString().c_str(), buff)) { QString path(buff); _session.saveDataFile(path); } } void KsMainWindow::_error(const QString &text, const QString &errCode, bool resize, bool unloadPlugins) { QErrorMessage *em = new QErrorMessage(this); if (resize) _resizeEmpty(); if (unloadPlugins) _plugins.unloadAll(); qCritical().noquote() << "ERROR: " << text; em->showMessage(text, errCode); em->exec(); } /** * @brief Load user session. * * @param fileName: Json file containing the description of the session. */ void KsMainWindow::loadSession(const QString &fileName) { kshark_context *kshark_ctx(nullptr); struct stat st; int ret; if (!kshark_instance(&kshark_ctx)) return; ret = stat(fileName.toStdString().c_str(), &st); if (ret != 0) { QString text("Unable to find session file "); text.append(fileName); text.append("\n"); _error(text, "loadSessErr0", true, true); return; } if (!_session.importFromFile(fileName)) { QString text("Unable to open session description file "); text.append(fileName); text.append(".\n"); _error(text, "loadSessErr1", true, true); return; } _session.loadPlugins(kshark_ctx, &_plugins); QString dataFile(_session.getDataFile(kshark_ctx)); if (dataFile.isEmpty()) { QString text("Unable to open trace data file for session "); text.append(fileName); text.append("\n"); _error(text, "loadSessErr1", true, true); return; } loadDataFile(dataFile); if (!_data.tep()) { _plugins.unloadAll(); return; } KsProgressBar pb("Loading session settings ..."); pb.setValue(10); _session.loadGraphs(&_graph); pb.setValue(20); _session.loadFilters(kshark_ctx, &_data); _filterSyncCBoxUpdate(kshark_ctx); pb.setValue(130); _session.loadSplitterSize(&_splitter); _session.loadMainWindowSize(this); this->show(); pb.setValue(140); _session.loadDualMarker(&_mState, &_graph); _session.loadVisModel(_graph.glPtr()->model()); _mState.updateMarkers(_data, _graph.glPtr()); pb.setValue(170); _session.loadTable(&_view); _colorPhaseSlider.setValue(_session.getColorScheme() * 100); _graph.updateGeom(); } void KsMainWindow::_initCapture() { #ifdef DO_AS_ROOT _capture.setProgram("kshark-su-record"); connect(&_capture, &QProcess::started, this, &KsMainWindow::_captureStarted); /* * Using the old Signal-Slot syntax because QProcess::finished has * overloads. */ connect(&_capture, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(_captureFinished(int, QProcess::ExitStatus))); connect(&_capture, &QProcess::errorOccurred, this, &KsMainWindow::_captureError); connect(&_captureLocalServer, &QLocalServer::newConnection, this, &KsMainWindow::_readSocket); #endif } void KsMainWindow::_captureStarted() { _captureLocalServer.listen("KSCapture"); } /** * If the authorization could not be obtained because the user dismissed * the authentication dialog (clicked Cancel), pkexec exits with a return * value of 126. */ #define PKEXEC_DISMISS_RET 126 void KsMainWindow::_captureFinished(int ret, QProcess::ExitStatus st) { QProcess *capture = (QProcess *)sender(); _captureLocalServer.close(); if (ret == PKEXEC_DISMISS_RET) { /* * Authorization could not be obtained because the user * dismissed the authentication dialog. */ return; } if (ret != 0 || st != QProcess::NormalExit) { QString message = "Capture process failed:
    "; message += capture->errorString(); message += "
    Try doing:
    sudo make install"; _error(message, "captureFinishedErr", false, false); } } void KsMainWindow::_captureError(QProcess::ProcessError error) { QProcess *capture = (QProcess *)sender(); QString message = "Capture process failed:
    "; message += capture->errorString(); message += "
    Try doing:
    sudo make install"; _error(message, "captureFinishedErr", false, false); } void KsMainWindow::_readSocket() { QLocalSocket *socket; quint32 blockSize; QString fileName; auto lamSocketError = [&](QString message) { message = "ERROR from Local Server: " + message; _error(message, "readSocketErr", false, false); }; socket = _captureLocalServer.nextPendingConnection(); if (!socket) { lamSocketError("Pending connectio not found!"); return; } QDataStream in(socket); socket->waitForReadyRead(); if (socket->bytesAvailable() < (int)sizeof(quint32)) { lamSocketError("Message size is corrupted!"); return; }; in >> blockSize; if (socket->bytesAvailable() < blockSize || in.atEnd()) { lamSocketError("Message is corrupted!"); return; } in >> fileName; loadDataFile(fileName); } void KsMainWindow::_splitterMoved(int pos, int index) { _session.saveSplitterSize(_splitter); } void KsMainWindow::_deselectActive() { _view.clearSelection(); _mState.activeMarker().remove(); _mState.updateLabels(); _graph.glPtr()->model()->update(); } void KsMainWindow::_deselectA() { if (_mState.getState() == DualMarkerState::A) _view.clearSelection(); else _view.passiveMarkerSelectRow(KS_NO_ROW_SELECTED); _mState.markerA().remove(); _mState.updateLabels(); _graph.glPtr()->model()->update(); } void KsMainWindow::_deselectB() { if (_mState.getState() == DualMarkerState::B) _view.clearSelection(); else _view.passiveMarkerSelectRow(KS_NO_ROW_SELECTED); _mState.markerB().remove(); _mState.updateLabels(); _graph.glPtr()->model()->update(); } trace-cmd-2.8.3/kernel-shark/src/KsMainWindow.hpp000066400000000000000000000102271351617527000216340ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsMainWindow.hpp * @brief KernelShark GUI main window. */ #ifndef _KS_MAINWINDOW_H #define _KS_MAINWINDOW_H // Qt #include #include // KernelShark #include "KsTraceViewer.hpp" #include "KsTraceGraph.hpp" #include "KsSession.hpp" #include "KsUtils.hpp" /** * The KsMainWindow class provides Main window for the KernelShark GUI. */ class KsMainWindow : public QMainWindow { Q_OBJECT public: explicit KsMainWindow(QWidget *parent = nullptr); ~KsMainWindow(); void loadDataFile(const QString &fileName); void loadSession(const QString &fileName); QString lastSessionFile(); /** * @brief * * @param plugin: can be the name of the plugin or the plugin's library * file (including absolute or relative path). */ void registerPlugin(const QString &plugin) { _plugins.registerPlugin(plugin); } /** * @brief * * @param plugin: can be the name of the plugin or the plugin's library * file (including absolute path). */ void unregisterPlugin(const QString &plugin) { _plugins.unregisterPlugin(plugin); } void resizeEvent(QResizeEvent* event); /** Set the Full Screen mode. */ void setFullScreenMode(bool f) { if ((!isFullScreen() && f) || (isFullScreen() && !f) ) _changeScreenMode(); } private: QSplitter _splitter; /** GUI session. */ KsSession _session; /** Data Manager. */ KsDataStore _data; /** Widget for reading and searching in the trace data. */ KsTraceViewer _view; /** Widget for graphical visualization of the trace data. */ KsTraceGraph _graph; /** Dual Marker State Machine. */ KsDualMarkerSM _mState; /** Plugin manager. */ KsPluginManager _plugins; /** The process used to record trace data. */ QProcess _capture; /** Local Server used for comunucation with the Capture process. */ QLocalServer _captureLocalServer; // File menu. QAction _openAction; QAction _restoreSessionAction; QAction _importSessionAction; QAction _exportSessionAction; QAction _quitAction; // Filter menu. QAction _importFilterAction; QAction _exportFilterAction; QCheckBox *_graphFilterSyncCBox; QCheckBox *_listFilterSyncCBox; QAction _showEventsAction; QAction _showTasksAction; QAction _showCPUsAction; QAction _advanceFilterAction; QAction _clearAllFilters; // Plots menu. QAction _cpuSelectAction; QAction _taskSelectAction; // Tools menu. QAction _managePluginsAction; QAction _addPluginsAction; QAction _captureAction; QWidgetAction _colorAction; QWidget _colSlider; QSlider _colorPhaseSlider; QAction _fullScreenModeAction; // Help menu. QAction _aboutAction; QAction _contentsAction; QAction _bugReportAction; QShortcut _deselectShortcut; QString _lastDataFilePath, _lastConfFilePath, _lastPluginFilePath; QSettings _settings; void _open(); void _restoreSession(); void _importSession(); void _exportSession(); void _importFilter(); void _exportFilter(); void _listFilterSync(int state); void _graphFilterSync(int state); void _showEvents(); void _showTasks(); void _hideTasks(); void _showCPUs(); void _hideCPUs(); void _advancedFiltering(); void _clearFilters(); void _cpuSelect(); void _taskSelect(); void _pluginSelect(); void _pluginAdd(); void _record(); void _setColorPhase(int); void _changeScreenMode(); void _aboutInfo(); void _contents(); void _bugReport(); void _captureStarted(); void _captureError(QProcess::ProcessError error); void _readSocket(); void _splitterMoved(int pos, int index); void _createActions(); void _createMenus(); void _initCapture(); void _updateSession(); inline void _resizeEmpty() {resize(SCREEN_WIDTH * .5, FONT_HEIGHT * 3);} void _error(const QString &text, const QString &errCode, bool resize, bool unloadPlugins); void _deselectActive(); void _deselectA(); void _deselectB(); void _updateFilterMenu(); void _filterSyncCBoxUpdate(kshark_context *kshark_ctx); QString _getCacheDir(); private slots: void _captureFinished(int, QProcess::ExitStatus); }; #endif // _KS_MAINWINDOW_H trace-cmd-2.8.3/kernel-shark/src/KsModels.cpp000066400000000000000000000303751351617527000210040ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsModels.cpp * @brief Models for data representation. */ // KernelShark #include "KsModels.hpp" #include "KsWidgetsLib.hpp" #include "KsUtils.hpp" /** Create a default (empty) KsFilterProxyModel object. */ KsFilterProxyModel::KsFilterProxyModel(QObject *parent) : QSortFilterProxyModel(parent), _searchStop(false), _source(nullptr) {} /** * Returns False if the item in the row indicated by the sourceRow and * sourceParentshould be filtered out. Otherwise returns True. */ bool KsFilterProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const { if (_data[sourceRow]->visible & KS_TEXT_VIEW_FILTER_MASK) return true; return false; } /** Provide the Proxy model with data. */ void KsFilterProxyModel::fill(KsDataStore *data) { _data = data->rows(); } /** Set the source model for this Proxy model. */ void KsFilterProxyModel::setSource(KsViewModel *s) { QSortFilterProxyModel::setSourceModel(s); _source = s; } size_t KsFilterProxyModel::_search(int column, const QString &searchText, search_condition_func cond, QList *matchList, int first, int last, QProgressBar *pb, QLabel *l, bool notify) { int index, row, nRows(last - first + 1); int pbCount(1); QString item; if (nRows > KS_PROGRESS_BAR_MAX) pbCount = nRows / (KS_PROGRESS_BAR_MAX - _searchProgress); else _searchProgress = KS_PROGRESS_BAR_MAX - nRows; /* Loop over the items of the proxy model. */ for (index = first; index <= last; ++index) { /* * Use the index of the proxy model to retrieve the value * of the row number in the base model. */ row = mapRowFromSource(index); item = _source->getValueStr(column, row); if (cond(searchText, item)) matchList->append(row); if (_searchStop) { if (notify) { _searchProgress = KS_PROGRESS_BAR_MAX; _pbCond.notify_one(); } break; } /* Deal with the Progress bar of the seatch. */ if ((index - first) % pbCount == 0) { if (notify) { std::lock_guard lk(_mutex); ++_searchProgress; _pbCond.notify_one(); } else { if (pb) { pb->setValue(pb->value() + 1); ++_searchProgress; } if (l) l->setText(QString(" %1").arg(matchList->count())); QApplication::processEvents(); } } } return index; } /** @brief Search the content of the table for a data satisfying an abstract * condition. * * @param column: The number of the column to search in. * @param searchText: The text to search for. * @param cond: Matching condition function. * @param matchList: Output location for a list containing the row indexes of * the cells satisfying matching condition. * @param pb: Input location for a Progressbar used to visualize the progress * of the search. * @param l: Input location for a label used to show the number of cells found. * * @returns The number of cells satisfying the matching condition. */ size_t KsFilterProxyModel::search(int column, const QString &searchText, search_condition_func cond, QList *matchList, QProgressBar *pb, QLabel *l) { int nRows = rowCount({}); _search(column, searchText, cond, matchList, 0, nRows - 1, pb, l, false); return matchList->count(); } /** @brief Search the content of the table for a data satisfying an abstract * condition. * * @param sm: Input location for the Search State machine object. * @param matchList: Output location for a list containing the row indexes of * * @returns The number of cells satisfying the matching condition. */ size_t KsFilterProxyModel::search(KsSearchFSM *sm, QList *matchList) { int nRows = rowCount({}); sm->_lastRowSearched = _search(sm->column(), sm->searchText(), sm->condition(), matchList, sm->_lastRowSearched + 1, nRows - 1, &sm->_searchProgBar, &sm->_searchCountLabel, false); return matchList->count(); } /** @brief Search the content of the table for a data satisfying an abstract * condition. * * @param column: The number of the column to search in. * @param searchText: The text to search for. * @param cond: Matching condition function. * @param first: Row index specifying the position inside the table from * where the search starts. * @param last: Row index specifying the position inside the table from * where the search ends. * @param notify: Input location for flag specifying if the search has to * notify the main thread when to update the progress bar. * * @returns A list containing the row indexes of the cells satisfying matching * condition. */ QList KsFilterProxyModel::searchMap(int column, const QString &searchText, search_condition_func cond, int first, int last, bool notify) { QList matchList; _search(column, searchText, cond, &matchList, first, last, nullptr, nullptr, notify); return matchList; } /** Create default (empty) KsViewModel object. */ KsViewModel::KsViewModel(QObject *parent) : QAbstractTableModel(parent), _data(nullptr), _nRows(0), _header({"#", "CPU", "Time Stamp", "Task", "PID", "Latency", "Event", "Info"}), _markA(KS_NO_ROW_SELECTED), _markB(KS_NO_ROW_SELECTED) {} /** * Get the data stored under the given role for the item referred to by * the index. This is an implementation of the pure virtual method of the * abstract model class. */ QVariant KsViewModel::data(const QModelIndex &index, int role) const { if (role == Qt::ForegroundRole) { if (index.row() == _markA) return QVariant::fromValue(QColor(Qt::white)); if (index.row() == _markB) return QVariant::fromValue(QColor(Qt::white)); } if (role == Qt::BackgroundRole) { if (index.row() == _markA) return QVariant::fromValue(QColor(_colorMarkA)); if (index.row() == _markB) return QVariant::fromValue(QColor(_colorMarkB)); } if (role == Qt::DisplayRole) return this->getValue(index.column(), index.row()); return {}; } /** Get the string data stored in a given cell of the table. */ QString KsViewModel::getValueStr(int column, int row) const { int pid; switch (column) { case TRACE_VIEW_COL_INDEX : return QString("%1").arg(row); case TRACE_VIEW_COL_CPU: return QString("%1").arg(_data[row]->cpu); case TRACE_VIEW_COL_TS: return KsUtils::Ts2String(_data[row]->ts, 6); case TRACE_VIEW_COL_COMM: return kshark_get_task_easy(_data[row]); case TRACE_VIEW_COL_PID: pid = kshark_get_pid_easy(_data[row]); return QString("%1").arg(pid); case TRACE_VIEW_COL_LAT: return kshark_get_latency_easy(_data[row]); case TRACE_VIEW_COL_EVENT: return kshark_get_event_name_easy(_data[row]); case TRACE_VIEW_COL_INFO : return kshark_get_info_easy(_data[row]); default: return {}; } } /** Get the data stored in a given cell of the table. */ QVariant KsViewModel::getValue(int column, int row) const { return getValueStr(column, row); } /** * Get the header of a column. This is an implementation of the pure virtual * method of the abstract model class. */ QVariant KsViewModel::headerData(int column, Qt::Orientation orientation, int role) const { if (orientation != Qt::Horizontal || role != Qt::DisplayRole) return {}; if (column < _header.count()) return _header.at(column); return {}; } /** Provide the model with data. */ void KsViewModel::fill(KsDataStore *data) { beginInsertRows(QModelIndex(), 0, data->size() - 1); _data = data->rows(); _nRows = data->size(); endInsertRows(); } /** @brief Select a row in the table. * * @param state: Identifier of the marker used to select the row. * @param row: Row index. */ void KsViewModel::selectRow(DualMarkerState state, int row) { if (state == DualMarkerState::A) { _markA = row; _markB = KS_NO_ROW_SELECTED; } else { _markB = row; _markA = KS_NO_ROW_SELECTED; } } /** Reset the model. */ void KsViewModel::reset() { beginResetModel(); _data = nullptr; _nRows = 0; endResetModel(); } /** Update the model. Use this function if the data has changed. */ void KsViewModel::update(KsDataStore *data) { /* * Do not try to skip the reset(). The row count has to be set to * zero before you full. */ reset(); fill(data); } /** @brief Search the content of the table for a data satisfying an abstract * condition. * * @param column: The number of the column to search in. * @param searchText: The text to search for. * @param cond: Matching condition function. * @param matchList: Output location for a list containing the row indexes of * the cells satisfying the matching condition. * * @returns The number of cells satisfying the matching condition. */ size_t KsViewModel::search(int column, const QString &searchText, search_condition_func cond, QList *matchList) { int nRows = rowCount({}); QVariant item; for (int r = 0; r < nRows; ++r) { item = getValue(r, column); if (cond(searchText, item.toString())) { matchList->append(r); } } return matchList->count(); } /** Create a default (empty) KsFilterProxyModel object. */ KsGraphModel::KsGraphModel(QObject *parent) : QAbstractTableModel(parent) { ksmodel_init(&_histo); } /** Destroy KsFilterProxyModel object. */ KsGraphModel::~KsGraphModel() { ksmodel_clear(&_histo); } /** * @brief Provide the Visualization model with data. Calculate the current * state of the model. * * @param entries: Input location for the trace data. * @param n: Number of bins. */ void KsGraphModel::fill(kshark_entry **entries, size_t n) { if (n == 0) return; beginResetModel(); if (_histo.n_bins == 0) ksmodel_set_bining(&_histo, KS_DEFAULT_NBUNS, entries[0]->ts, entries[n-1]->ts); ksmodel_fill(&_histo, entries, n); endResetModel(); } /** * @brief Shift the time-window of the model forward. Recalculate the current * state of the model. * * @param n: Number of bins to shift. */ void KsGraphModel::shiftForward(size_t n) { beginResetModel(); ksmodel_shift_forward(&_histo, n); endResetModel(); } /** * @brief Shift the time-window of the model backward. Recalculate the current * state of the model. * * @param n: Number of bins to shift. */ void KsGraphModel::shiftBackward(size_t n) { beginResetModel(); ksmodel_shift_backward(&_histo, n); endResetModel(); } /** * @brief Move the time-window of the model to a given location. Recalculate * the current state of the model. * * @param ts: position in time to be visualized. */ void KsGraphModel::jumpTo(size_t ts) { beginResetModel(); ksmodel_jump_to(&_histo, ts); endResetModel(); } /** * @brief Extend the time-window of the model. Recalculate the current state * of the model. * * @param r: Scale factor of the zoom-out. * @param mark: Focus point of the zoom-out. */ void KsGraphModel::zoomOut(double r, int mark) { beginResetModel(); ksmodel_zoom_out(&_histo, r, mark); endResetModel(); } /** * @brief Shrink the time-window of the model. Recalculate the current state * of the model. * * @param r: Scale factor of the zoom-in. * @param mark: Focus point of the zoom-in. */ void KsGraphModel::zoomIn(double r, int mark) { beginResetModel(); ksmodel_zoom_in(&_histo, r, mark); endResetModel(); } /** Quick zoom out. The entire data-set will be visualized. */ void KsGraphModel::quickZoomOut() { beginResetModel(); ksmodel_set_bining(&_histo, _histo.n_bins, _histo.data[0]->ts, _histo.data[_histo.data_size - 1]->ts); ksmodel_fill(&_histo, _histo.data, _histo.data_size); endResetModel(); } /** * @brief Quick zoom in to a state of the Visualization model which has the * given bin size. The actual value of the bin size may en up being slightly * different because of the fine tuning performed by the model. * * @param binSize: an approximate value for the new size of the bins. */ void KsGraphModel::quickZoomIn(uint64_t binSize) { double range, r; range = _histo.max - _histo.min; r = 1 - (binSize * _histo.n_bins) / range; zoomIn(r); } /** Reset the model. */ void KsGraphModel::reset() { beginResetModel(); ksmodel_clear(&_histo); endResetModel(); } /** Update the model. Use this function if the data has changed. */ void KsGraphModel::update(KsDataStore *data) { beginResetModel(); if (data) ksmodel_fill(&_histo, data->rows(), data->size()); endResetModel(); } trace-cmd-2.8.3/kernel-shark/src/KsModels.hpp000066400000000000000000000151071351617527000210050ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsModels.hpp * @brief Models for data representation. */ #ifndef _KS_MODELS_H #define _KS_MODELS_H // C++11 #include #include // Qt #include #include #include #include #include // KernelShark #include "libkshark.h" #include "libkshark-model.h" #include "KsSearchFSM.hpp" /** A negative row index, to be used for deselecting the Passive Marker. */ #define KS_NO_ROW_SELECTED -1 enum class DualMarkerState; class KsDataStore; /** * Class KsViewModel provides models for trace data representation in a * table view. */ class KsViewModel : public QAbstractTableModel { public: explicit KsViewModel(QObject *parent = nullptr); /** Set the colors of the two markers. */ void setColors(const QColor &colA, const QColor &colB) { _colorMarkA = colA; _colorMarkB = colB; }; /** * Get the number of rows. This is an implementation of the pure * virtual method of the abstract model class. */ int rowCount(const QModelIndex &) const override {return _nRows;} /** * Get the number of columns. This is an implementation of the pure * virtual method of the abstract model class. */ int columnCount(const QModelIndex &) const override { return _header.count(); } QVariant headerData(int section, Qt::Orientation orientation, int role) const override; QVariant data(const QModelIndex &index, int role) const override; void fill(KsDataStore *data); void selectRow(DualMarkerState state, int row); void reset(); void update(KsDataStore *data); /** Get the list of column's headers. */ QStringList header() const {return _header;} QString getValueStr(int column, int row) const; QVariant getValue(int column, int row) const; size_t search(int column, const QString &searchText, search_condition_func cond, QList *matchList); /** Table columns Identifiers. */ enum { /** Identifier of the Index column. */ TRACE_VIEW_COL_INDEX, /** Identifier of the CPU column. */ TRACE_VIEW_COL_CPU, /** Identifier of the Timestamp column. */ TRACE_VIEW_COL_TS, /** Identifier of the Task name (command) column. */ TRACE_VIEW_COL_COMM, /** Identifier of the Process Id column. */ TRACE_VIEW_COL_PID, /** Identifier of the Latency Id column. */ TRACE_VIEW_COL_LAT, /** Identifier of the Event name Id column. */ TRACE_VIEW_COL_EVENT, /** Identifier of the Event name Id column. */ TRACE_VIEW_COL_INFO, /** Number of column. */ TRACE_VIEW_N_COLUMNS, }; private: /** Trace data array. */ kshark_entry **_data; /** The size of the data array. */ size_t _nRows; /** The headers of the individual columns. */ QStringList _header; /** The index of marker A inside the data array. */ int _markA; /** The index of marker A inside the data array. */ int _markB; /** The color of the row selected by marker A. */ QColor _colorMarkA; /** The color of the row selected by marker B. */ QColor _colorMarkB; }; /** * Class KsFilterProxyModel provides support for filtering trace data in * table view. */ class KsFilterProxyModel : public QSortFilterProxyModel { Q_OBJECT public: explicit KsFilterProxyModel(QObject *parent = nullptr); bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override; void fill(KsDataStore *data); void setSource(KsViewModel *s); size_t search(int column, const QString &searchText, search_condition_func cond, QList *matchList, QProgressBar *pb = nullptr, QLabel *l = nullptr); size_t search(KsSearchFSM *sm, QList *matchList); QList searchMap(int column, const QString &searchText, search_condition_func cond, int first, int last, bool notify); /** Get the progress of the search. */ int searchProgress() const {return _searchProgress;} /** Reset the progress value of the search. */ void searchReset() { _searchProgress = 0; _searchStop = false; } /** * Use the "row" index in the Proxy model to retrieve the "row" index * in the source model. */ int mapRowFromSource(int r) const { /*This works because the row number is shown in column "0". */ return this->data(this->index(r, 0)).toInt(); } /** Get the source model. */ KsViewModel *source() {return _source;} /** * A condition variable used to notify the main thread to update the * search progressbar. */ std::condition_variable _pbCond; /** A mutex used by the condition variable. */ std::mutex _mutex; /** A flag used to stop the serch for all threads. */ bool _searchStop; private: int _searchProgress; /** Trace data array. */ kshark_entry **_data; KsViewModel *_source; size_t _search(int column, const QString &searchText, search_condition_func cond, QList *matchList, int first, int last, QProgressBar *pb, QLabel *l, bool notify); }; /** * Class KsGraphModel provides a model for visualization of trace data. This * class is a wrapper of kshark_trace_histo and is needed only because we want * to use the signals defined in QAbstractTableModel. */ class KsGraphModel : public QAbstractTableModel { public: explicit KsGraphModel(QObject *parent = nullptr); virtual ~KsGraphModel(); /** * This dummy function is an implementation of the pure * virtual method of the abstract model class. */ int rowCount(const QModelIndex &) const override { return _histo.n_bins; } /** * This dummy function is an implementation of the pure * virtual method of the abstract model class. */ int columnCount(const QModelIndex &) const override {return 0;} /** * This dummy function is an implementation of the pure * virtual method of the abstract model class. */ QVariant data(const QModelIndex &index, int role) const override { return {}; } /** Get the kshark_trace_histo object. */ kshark_trace_histo *histo() {return &_histo;} void fill(kshark_entry **entries, size_t n); void shiftForward(size_t n); void shiftBackward(size_t n); void jumpTo(size_t ts); void zoomOut(double r, int mark = -1); void zoomIn(double r, int mark = -1); void quickZoomOut(); void quickZoomIn(uint64_t binSize); void reset(); void update(KsDataStore *data = nullptr); private: kshark_trace_histo _histo; }; /** Defines a default number of bins to be used by the visualization model. */ #define KS_DEFAULT_NBUNS 1024 #endif // _KS_MODELS_H trace-cmd-2.8.3/kernel-shark/src/KsPlotTools.cpp000066400000000000000000000621731351617527000215210ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsPlotTools.cpp * @brief KernelShark Plot tools. */ // C #include // C++ #include #include // OpenGL #include #include // KernelShark #include "KsPlotTools.hpp" namespace KsPlot { float Color::_frequency = .75; /** * @brief Create a default color (black). */ Color::Color() { _col_c.red = _col_c.green = _col_c.blue = 0; } /** * @brief Constructs a RGB color object. * * @param r: The red component of the color. * @param g: The green component of the color. * @param b: The blue component of the color */ Color::Color(uint8_t r, uint8_t g, uint8_t b) { set(r, g, b); } /** * @brief Constructs a RGB color object. * * @param rgb: RGB value. */ Color::Color(int rgb) { set(rgb); } /** * @brief Sets the color. * * @param r: The red component of the color. * @param g: The green component of the color. * @param b: The blue component of the color */ void Color::set(uint8_t r, uint8_t g, uint8_t b) { _col_c.red = r; _col_c.green = g; _col_c.blue = b; } /** * @brief Sets the color. * * @param rgb: RGB value. */ void Color::set(int rgb) { int r = rgb & 0xFF; int g = (rgb >> 8) & 0xFF; int b = (rgb >> 16) & 0xFF; set(r, g, b); } /** * @brief The color is selected from the Rainbow palette. * * @param n: index of the color inside the Rainbow palette. */ void Color::setRainbowColor(int n) { int r = sin(_frequency * n + 0) * 127 + 128; int g = sin(_frequency * n + 2) * 127 + 128; int b = sin(_frequency * n + 4) * 127 + 128; set(r, g, b); } /** * @brief Create a Hash table of Rainbow colors. The sorted Pid values are * mapped to the palette of Rainbow colors. * * @returns ColorTable instance. */ ColorTable getTaskColorTable() { struct kshark_context *kshark_ctx(nullptr); ColorTable colors; int nTasks, pid, *pids, i(0); if (!kshark_instance(&kshark_ctx)) return colors; nTasks = kshark_get_task_pids(kshark_ctx, &pids); if (!nTasks) return colors; std::vector temp_pids(pids, pids + nTasks); std::sort(temp_pids.begin(), temp_pids.end()); free(pids); if (temp_pids[i] == 0) { /* The "Idle" process (pid = 0) will be plotted in black. */ colors[i++] = {}; } for (; i < nTasks; ++i) { pid = temp_pids[i]; colors[pid].setRainbowColor(i - 1); } return colors; } /** * @brief Create a Hash table of Rainbow colors. The CPU Ids are * mapped to the palette of Rainbow colors. * * @returns ColorTable instance. */ ColorTable getCPUColorTable() { struct kshark_context *kshark_ctx(nullptr); ColorTable colors; int nCPUs; if (!kshark_instance(&kshark_ctx)) return colors; nCPUs = tep_get_cpus(kshark_ctx->pevent); for (int i = 0; i < nCPUs; ++i) colors[i].setRainbowColor(i); return colors; } /** * @brief Search the Hash table of Rainbow colors for a particular key (pid). * * @param colors: Input location for the ColorTable instance. * @param pid: the Process Id to search for. * * @returns The Rainbow color of the key "pid". If "pid" does not exist, the * returned color is Black. */ Color getColor(ColorTable *colors, int pid) { auto item = colors->find(pid); if (item != colors->end()) return item->second; return {}; } /** * @brief Create a default Shape. */ Shape::Shape() : _nPoints(0), _points(nullptr) {} /** * @brief Create a Shape defined by "n" points. All points are initialized * at (0, 0). */ Shape::Shape(int n) : _nPoints(n), _points(new(std::nothrow) ksplot_point[n]()) { if (!_points) { _size = 0; fprintf(stderr, "Failed to allocate memory for ksplot_points.\n"); } } /** Copy constructor. */ Shape::Shape(const Shape &s) : _nPoints(0), _points(nullptr) { *this = s; } /** Move constructor. */ Shape::Shape(Shape &&s) : _nPoints(s._nPoints), _points(s._points) { s._nPoints = 0; s._points = nullptr; } /** * @brief Destroy the Shape object. */ Shape::~Shape() { delete[] _points; } /** Assignment operator. */ void Shape::operator=(const Shape &s) { PlotObject::operator=(s); if (s._nPoints != _nPoints) { delete[] _points; _points = new(std::nothrow) ksplot_point[s._nPoints]; } if (_points) { _nPoints = s._nPoints; memcpy(_points, s._points, sizeof(_points) * _nPoints); } else { _nPoints = 0; fprintf(stderr, "Failed to allocate memory for ksplot_points.\n"); } } /** * @brief Set the point of the polygon indexed by "i". * * @param i: the index of the point to be set. * @param x: X coordinate of the point in pixels. * @param y: Y coordinate of the point in pixels. */ void Shape::setPoint(size_t i, int x, int y) { if (i < _nPoints) { _points[i].x = x; _points[i].y = y; } } /** * @brief Set the point of the polygon indexed by "i". * * @param i: the index of the point to be set. * @param p: A ksplot_point object used to provide coordinate values. */ void Shape::setPoint(size_t i, const ksplot_point &p) { setPoint(i, p.x, p.y); } /** * @brief Set the point of the polygon indexed by "i". * * @param i: the index of the point to be set. * @param p: A Point object used to provide coordinate values. */ void Shape::setPoint(size_t i, const Point &p) { setPoint(i, p.x(), p.y()); } /** * @brief Get the point "i". If the point does not exist, the function returns * nullptr. */ const ksplot_point *Shape::getPoint(size_t i) const { if (i < _nPoints) return &_points[i]; return nullptr; } /** * @brief Set the horizontal coordinate of the point "i". * * @param i: the index of the point to be set. * @param x: X coordinate of the point in pixels. */ void Shape::setPointX(size_t i, int x) { if (i < _nPoints) _points[i].x = x; } /** * @brief Set the vertical coordinate of the point "i". * * @param i: the index of the point to be set. * @param y: Y coordinate of the point in pixels. */ void Shape::setPointY(size_t i, int y) { if (i < _nPoints) _points[i].y = y; } /** * @brief Get the horizontal coordinate of the point "i". If the point does * not exist, the function returns 0. */ int Shape::getPointX(size_t i) const { if (i < _nPoints) return _points[i].x; return 0; } /** * @brief Get the vertical coordinate of the point "i". If the point does * not exist, the function returns 0. */ int Shape::getPointY(size_t i) const { if (i < _nPoints) return _points[i].y; return 0; } /** @brief Create a default Point. The point is initialized at (0, 0). */ Point::Point() : Shape(1) {} /** * @brief Create a point. * * @param x: X coordinate of the point in pixels. * @param y: Y coordinate of the point in pixels. */ Point::Point(int x, int y) : Shape(1) { setPoint(0, x, y); } void Point::_draw(const Color &col, float size) const { if (_nPoints == 1) ksplot_draw_point(_points, col.color_c_ptr(), size); } /** * @brief Draw a line between point "a" and point "b". * * @param a: The first finishing point of the line. * @param b: The second finishing point of the line. * @param col: The color of the line. * @param size: The size of the line. */ void drawLine(const Point &a, const Point &b, const Color &col, float size) { ksplot_draw_line(a.point_c_ptr(), b.point_c_ptr(), col.color_c_ptr(), size); } /** * @brief Draw a dashed line between point "a" and point "b". * * @param a: The first finishing point of the line. * @param b: The second finishing point of the line. * @param col: The color of the line. * @param size: The size of the line. * @param period: The period of the dashed line. */ void drawDashedLine(const Point &a, const Point &b, const Color &col, float size, float period) { int dx = b.x() - a.x(), dy = b.y() - a.y(); float mod = sqrt(dx * dx + dy * dy); int n = mod / period; Point p1, p2; for (int i = 0; i < n; ++i) { p1.setX(a.x() + (i + .25) * dx / n); p1.setY(a.y() + (i + .25) * dy / n); p2.setX(a.x() + (i + .75) * dx / n); p2.setY(a.y() + (i + .75) * dy / n); drawLine(p1, p2, col, size); } } /** @brief Create a default line. The two points are initialized at (0, 0). */ Line::Line() : Shape(2) {} /** * @brief Create a line between the point "a" and point "b". * * @param a: first finishing point of the line. * @param b: second finishing point of the line. */ Line::Line(const Point &a, const Point &b) : Shape(2) { setPoint(0, a.x(), a.y()); setPoint(1, b.x(), b.y()); } void Line::_draw(const Color &col, float size) const { if (_nPoints == 2) ksplot_draw_line(&_points[0], &_points[1], col.color_c_ptr(), size); } /** * @brief Create a default polygon. All points are initialized at (0, 0). * * @param n: The number of edges of the polygon. */ Polygon::Polygon(size_t n) : Shape(n), _fill(true) {} void Polygon::_draw(const Color &col, float size) const { if (_fill) ksplot_draw_polygon(_points, _nPoints, col.color_c_ptr(), size); else ksplot_draw_polygon_contour(_points, _nPoints, col.color_c_ptr(), size); } /** * @brief Create a default Mark. */ Mark::Mark() : _dashed(false) { _visible = false; _cpu._color = Color(225, 255, 100); _cpu._size = 5.5f; _task._color = Color(0, 255, 0); _task._size = 5.5f; } void Mark::_draw(const Color &col, float size) const { if (_dashed) drawDashedLine(_a, _b, col, size, 3 * _cpu._size / size); else drawLine(_a, _b, col, size); _cpu.draw(); _task.draw(); } /** * @brief Set the device pixel ratio. * * @param dpr: device pixel ratio value. */ void Mark::setDPR(int dpr) { _size = 1.5 * dpr; _task._size = _cpu._size = 1.5 + 4.0 * dpr; } /** * @brief Set the X coordinate (horizontal) of the Mark. * * @param x: X coordinate of the Makr in pixels. */ void Mark::setX(int x) { _a.setX(x); _b.setX(x); _cpu.setX(x); _task.setX(x); } /** * @brief Set the Y coordinates (vertical) of the Mark's finishing points. * * @param yA: Y coordinate of the first finishing point of the Mark's line. * @param yB: Y coordinate of the second finishing point of the Mark's line. */ void Mark::setY(int yA, int yB) { _a.setY(yA); _b.setY(yB); } /** * @brief Set the Y coordinates (vertical) of the Mark's CPU points. * * @param yCPU: Y coordinate of the Mark's CPU point. */ void Mark::setCPUY(int yCPU) { _cpu.setY(yCPU); } /** * @brief Set the visiblity of the Mark's CPU points. * * @param v: If True, the CPU point will be visible. */ void Mark::setCPUVisible(bool v) { _cpu._visible = v; } /** * @brief Set the Y coordinates (vertical) of the Mark's Task points. * * @param yTask: Y coordinate of the Mark's Task point. */ void Mark::setTaskY(int yTask) { _task.setY(yTask); } /** * @brief Set the visiblity of the Mark's Task points. * * @param v: If True, the Task point will be visible. */ void Mark::setTaskVisible(bool v) { _task._visible = v; } /** * @brief Create a default Bin. */ Bin::Bin() : _idFront(KS_EMPTY_BIN), _idBack(KS_EMPTY_BIN) {} void Bin::_draw(const Color &col, float size) const { drawLine(_base, _val, col, size); } /** * @brief Draw only the "val" Point og the Bin. * * @param size: The size of the point. */ void Bin::drawVal(float size) { _val._size = size; _val.draw(); } /** * @brief Create a default (empty) Graph. */ Graph::Graph() : _histoPtr(nullptr), _bins(nullptr), _size(0), _hMargin(30), _collectionPtr(nullptr), _binColors(nullptr), _ensembleColors(nullptr), _zeroSuppress(false) {} /** * @brief Create a Graph to represent the state of the Vis. model. * * @param histo: Input location for the model descriptor. * @param bct: Input location for the Hash table of bin's colors. * @param ect: Input location for the Hash table of ensemble's colors. */ Graph::Graph(kshark_trace_histo *histo, KsPlot::ColorTable *bct, KsPlot::ColorTable *ect) : _histoPtr(histo), _bins(new(std::nothrow) Bin[histo->n_bins]), _size(histo->n_bins), _hMargin(30), _collectionPtr(nullptr), _binColors(bct), _ensembleColors(ect), _zeroSuppress(false) { if (!_bins) { _size = 0; fprintf(stderr, "Failed to allocate memory graph's bins.\n"); } _initBins(); } /** * @brief Destroy the Graph object. */ Graph::~Graph() { delete[] _bins; } void Graph::_initBins() { for (int i = 0; i < _size; ++i) { _bins[i]._base.setX(i + _hMargin); _bins[i]._base.setY(0); _bins[i]._val.setX(_bins[i]._base.x()); _bins[i]._val.setY(_bins[i]._base.y()); } } /** * Get the number of bins. */ int Graph::size() { return _size; } /** * @brief Reinitialize the Graph according to the Vis. model. * * @param histo: Input location for the model descriptor. */ void Graph::setModelPtr(kshark_trace_histo *histo) { if (_size != histo->n_bins) { delete[] _bins; _size = histo->n_bins; _bins = new(std::nothrow) Bin[_size]; if (!_bins) { _size = 0; fprintf(stderr, "Failed to allocate memory graph's bins.\n"); } } _histoPtr = histo; _initBins(); } /** * @brief This function will set the Y (vertical) coordinate of the Graph's * base. It is safe to use this function even if the Graph contains * data. * * @param b: Y coordinate of the Graph's base in pixels. */ void Graph::setBase(int b) { int mod; if (!_size) return; if (b == _bins[0]._base.y()) // Nothing to do. return; for (int i = 0; i < _size; ++i) { mod = _bins[i].mod(); _bins[i]._base.setY(b); _bins[i]._val.setY(b + mod); } } /** * @brief Set the vertical size (height) of the Graph. * * @param h: the height of the Graph in pixels. */ void Graph::setHeight(int h) { _height = h; } /** * @brief Set the size of the white space added on both sides of the Graph. * * @param hMargin: the size of the white space in pixels. */ void Graph::setHMargin(int hMargin) { if (!_size) return; if (hMargin == _bins[0]._base.x()) // Nothing to do. return; for (int i = 0; i < _size; ++i) { _bins[i]._base.setX(i + hMargin); _bins[i]._val.setX(_bins[i]._base.x()); } _hMargin = hMargin; } /** * @brief Set the value of a given bin. * * @param bin: Bin Id. * @param val: Bin height in pixels. */ void Graph::setBinValue(int bin, int val) { _bins[bin].setVal(val); } /** * @brief Set the Process Id (Front and Back) a given bin. * * @param bin: Bin Id. * @param pidF: The Process Id detected at the from (first in time) edge of * the bin. * @param pidB: The Process Id detected at the back (last in time) edge of * the bin. */ void Graph::setBinPid(int bin, int pidF, int pidB) { _bins[bin]._idFront = pidF; _bins[bin]._idBack = pidB; } /** * @brief Set the color of a given bin. * * @param bin: Bin Id. * @param col: the color of the bin. */ void Graph::setBinColor(int bin, const Color &col) { _bins[bin]._color = col; } /** * @brief Set the visiblity mask of a given bin. * * @param bin: Bin Id. * @param m: the visiblity mask. */ void Graph::setBinVisMask(int bin, uint8_t m) { _bins[bin]._visMask = m; } /** * @brief Set all fields of a given bin. * * @param bin: Bin Id. * @param pidF: The Process Id detected at the from (first in time) edge of * the bin. * @param pidB: The Process Id detected at the back (last in time) edge of * the bin. * @param col: the color of the bin. * @param m: the visiblity mask. */ void Graph::setBin(int bin, int pidF, int pidB, const Color &col, uint8_t m) { setBinPid(bin, pidF, pidB); setBinValue(bin, _height * .7); setBinColor(bin, col); setBinVisMask(bin, m); } /** * @brief Process a CPU Graph. * * @param cpu: The CPU core. */ void Graph::fillCPUGraph(int cpu) { struct kshark_entry *eFront; int pidFront(0), pidBack(0); int pidBackNoFilter; uint8_t visMask; ssize_t index; int bin; auto lamGetPid = [&] (int bin) { eFront = nullptr; pidFront = ksmodel_get_pid_front(_histoPtr, bin, cpu, true, _collectionPtr, &index); if (index >= 0) eFront = _histoPtr->data[index]; pidBack = ksmodel_get_pid_back(_histoPtr, bin, cpu, true, _collectionPtr, nullptr); pidBackNoFilter = ksmodel_get_pid_back(_histoPtr, bin, cpu, false, _collectionPtr, nullptr); if (pidBack != pidBackNoFilter) pidBack = KS_FILTERED_BIN; visMask = 0x0; if (ksmodel_cpu_visible_event_exist(_histoPtr, bin, cpu, _collectionPtr, &index)) visMask = _histoPtr->data[index]->visible; else if (eFront) visMask = eFront->visible; }; auto lamSetBin = [&] (int bin) { if (pidFront != KS_EMPTY_BIN || pidBack != KS_EMPTY_BIN) { /* This is a regular process. */ setBin(bin, pidFront, pidBack, getColor(_binColors, pidFront), visMask); } else { /* The bin contens no data from this CPU. */ setBinPid(bin, KS_EMPTY_BIN, KS_EMPTY_BIN); } }; /* * Check the content of the very first bin and see if the CPU is * active. */ bin = 0; lamGetPid(bin); if (pidFront >= 0) { /* * The CPU is active and this is a regular process. * Set this bin. */ lamSetBin(bin); } else { /* * No data from this CPU in the very first bin. Use the Lower * Overflow Bin to retrieve the Process Id (if any). First * get the Pid back, ignoring the filters. */ pidBackNoFilter = ksmodel_get_pid_back(_histoPtr, LOWER_OVERFLOW_BIN, cpu, false, _collectionPtr, nullptr); /* Now get the Pid back, applying filters. */ pidBack = ksmodel_get_pid_back(_histoPtr, LOWER_OVERFLOW_BIN, cpu, true, _collectionPtr, nullptr); if (pidBack != pidBackNoFilter) { /* The Lower Overflow Bin ends with filtered data. */ setBinPid(bin, KS_FILTERED_BIN, KS_FILTERED_BIN); } else { /* * The Lower Overflow Bin ends with data which has * to be plotted. */ setBinPid(bin, pidBack, pidBack); } } /* * The first bin is already processed. The loop starts from the second * bin. */ for (bin = 1; bin < _histoPtr->n_bins; ++bin) { /* * Check the content of this bin and see if the CPU is active. * If yes, retrieve the Process Id. */ lamGetPid(bin); lamSetBin(bin); } } /** * @brief Process a Task Graph. * * @param pid: The Process Id of the Task. */ void Graph::fillTaskGraph(int pid) { int cpuFront, cpuBack(0), pidFront(0), pidBack(0), lastCpu(-1), bin(0); uint8_t visMask; ssize_t index; auto lamSetBin = [&] (int bin) { if (cpuFront >= 0) { KsPlot::Color col = getColor(_binColors, pid); /* Data from the Task has been found in this bin. */ if (pid == pidFront && pid == pidBack) { /* No data from other tasks in this bin. */ setBin(bin, cpuFront, cpuBack, col, visMask); } else if (pid != pidFront && pid != pidBack) { /* * There is some data from other tasks at both * front and back sides of this bin. But we * still want to see this bin drawn. */ setBin(bin, cpuFront, KS_FILTERED_BIN, col, visMask); } else { if (pidFront != pid) { /* * There is some data from another * task at the front side of this bin. */ cpuFront = KS_FILTERED_BIN; } if (pidBack != pid) { /* * There is some data from another * task at the back side of this bin. */ cpuBack = KS_FILTERED_BIN; } setBin(bin, cpuFront, cpuBack, col, visMask); } lastCpu = cpuBack; } else { /* * No data from the Task in this bin. Check the CPU, * previously used by the task. We are looking for * data from another task running on the same CPU, * hence we cannot use the collection of this task. */ int cpuPid = ksmodel_get_pid_back(_histoPtr, bin, lastCpu, false, nullptr, // No collection nullptr); if (cpuPid != KS_EMPTY_BIN) { /* * If the CPU is active and works on another * task break the graph here. */ setBinPid(bin, KS_FILTERED_BIN, KS_EMPTY_BIN); } else { /* * No data from this CPU in the bin. * Continue the graph. */ setBinPid(bin, KS_EMPTY_BIN, KS_EMPTY_BIN); } } }; auto lamGetPidCPU = [&] (int bin) { /* Get the CPU used by this task. */ cpuFront = ksmodel_get_cpu_front(_histoPtr, bin, pid, false, _collectionPtr, nullptr); cpuBack = ksmodel_get_cpu_back(_histoPtr, bin, pid, false, _collectionPtr, nullptr); if (cpuFront < 0) { pidFront = pidBack = cpuFront; } else { /* * Get the process Id at the begining and at the end * of the bin. */ pidFront = ksmodel_get_pid_front(_histoPtr, bin, cpuFront, false, _collectionPtr, nullptr); pidBack = ksmodel_get_pid_back(_histoPtr, bin, cpuBack, false, _collectionPtr, nullptr); visMask = 0x0; if (ksmodel_task_visible_event_exist(_histoPtr, bin, pid, _collectionPtr, &index)) { visMask = _histoPtr->data[index]->visible; } } }; /* * Check the content of the very first bin and see if the Task is * active. */ lamGetPidCPU(bin); if (cpuFront >= 0) { /* The Task is active. Set this bin. */ lamSetBin(bin); } else { /* * No data from this Task in the very first bin. Use the Lower * Overflow Bin to retrieve the CPU used by the task (if any). */ cpuFront = ksmodel_get_cpu_back(_histoPtr, LOWER_OVERFLOW_BIN, pid, false, _collectionPtr, nullptr); if (cpuFront >= 0) { /* * The Lower Overflow Bin contains data from this Task. * Now look again in the Lower Overflow Bin and Bim 0 * and find the Pid of the last active task on the same * CPU. */ int pidCpu0, pidCpuLOB; pidCpu0 = ksmodel_get_pid_back(_histoPtr, 0, cpuFront, false, _collectionPtr, nullptr); pidCpuLOB = ksmodel_get_pid_back(_histoPtr, LOWER_OVERFLOW_BIN, cpuFront, false, _collectionPtr, nullptr); if (pidCpu0 < 0 && pidCpuLOB == pid) { /* * The Task is the last one running on this * CPU. Set the Pid of the bin. In this case * the very first bin is empty but we derive * the Process Id from the Lower Overflow Bin. */ setBinPid(bin, cpuFront, cpuFront); lastCpu = cpuFront; } else { setBinPid(bin, KS_EMPTY_BIN, KS_EMPTY_BIN); } } } /* * The first bin is already processed. The loop starts from the second * bin. */ for (bin = 1; bin < _histoPtr->n_bins; ++bin) { lamGetPidCPU(bin); /* Set the bin accordingly. */ lamSetBin(bin); } } /** * @brief Draw the Graph * * @param size: The size of the lines of the individual Bins. */ void Graph::draw(float size) { int lastPid(-1), b(0), boxH(_height * .3); Rectangle taskBox; /* * Start by drawing a line between the base points of the first and * the last bin. */ drawLine(_bins[0]._base, _bins[_size - 1]._base, {}, size); /* Draw as vartical lines all bins containing data. */ for (int i = 0; i < _size; ++i) if (_bins[i]._idFront >= 0 || _bins[i]._idBack >= 0) if (_bins[i]._visMask & KS_EVENT_VIEW_FILTER_MASK) { _bins[i]._size = size; _bins[i].draw(); } auto lamCheckEnsblVal = [this] (int v) { return v > 0 || (v == 0 && !this->_zeroSuppress); }; /* * Draw colored boxes for processes. First find the first bin, which * contains data and determine its PID. */ for (; b < _size; ++b) { if (lamCheckEnsblVal(_bins[b]._idBack)) { lastPid = _bins[b]._idFront; /* * Initialize a box starting from this bin. * The color of the taskBox corresponds to the Pid * of the process. */ taskBox._color = getColor(_ensembleColors, lastPid); taskBox.setPoint(0, _bins[b]._base.x(), _bins[b]._base.y() - boxH); taskBox.setPoint(1, _bins[b]._base.x(), _bins[b]._base.y()); break; } } for (; b < _size; ++b) { if (_bins[b]._idFront == KS_EMPTY_BIN && _bins[b]._idBack == KS_EMPTY_BIN) { /* * This bin is empty. If a colored taskBox is already * initialized, it will be extended. */ continue; } if (_bins[b]._idFront != _bins[b]._idBack || _bins[b]._idFront != lastPid || _bins[b]._idBack != lastPid) { /* A new process starts here. */ if (b > 0 && lamCheckEnsblVal(lastPid)) { /* * There is another process running up to this * point. Close its colored box here and draw. */ taskBox.setPoint(3, _bins[b]._base.x() - 1, _bins[b]._base.y() - boxH); taskBox.setPoint(2, _bins[b]._base.x() - 1, _bins[b]._base.y()); taskBox.draw(); } if (lamCheckEnsblVal(_bins[b]._idBack)) { /* * This is a regular process. Initialize * colored box starting from this bin. */ taskBox._color = getColor(_ensembleColors, _bins[b]._idBack); taskBox.setPoint(0, _bins[b]._base.x() - 1, _bins[b]._base.y() - boxH); taskBox.setPoint(1, _bins[b]._base.x() - 1, _bins[b]._base.y()); } lastPid = _bins[b]._idBack; } } if (lamCheckEnsblVal(lastPid) > 0) { /* * This is the end of the Graph and we have a process running. * Close its colored box and draw. */ taskBox.setPoint(3, _bins[_size - 1]._base.x(), _bins[_size - 1]._base.y() - boxH); taskBox.setPoint(2, _bins[_size - 1]._base.x(), _bins[_size - 1]._base.y()); taskBox.draw(); } } }; // KsPlot trace-cmd-2.8.3/kernel-shark/src/KsPlotTools.hpp000066400000000000000000000262701351617527000215240ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsPlotTools.hpp * @brief KernelShark Plot tools. */ #ifndef _KS_PLOT_TOOLS_H #define _KS_PLOT_TOOLS_H // C++ #include #include // KernelShark #include "libkshark.h" #include "libkshark-plot.h" #include "libkshark-model.h" namespace KsPlot { /** This class represents a RGB color. */ class Color { public: Color(); Color(uint8_t r, uint8_t g, uint8_t b); Color(int rgb); /** @brief Get the Red coordinate of the color. */ uint8_t r() const {return _col_c.red;} /** @brief Get the Green coordinate of the color. */ uint8_t g() const {return _col_c.green;} /** @brief Get the Blue coordinate of the color. */ uint8_t b() const {return _col_c.blue;} void set(uint8_t r, uint8_t g, uint8_t b); void set(int rgb); void setRainbowColor(int n); /** * @brief Get the C struct defining the RGB color. */ const ksplot_color *color_c_ptr() const {return &_col_c;} /** * @brief Set the frequency value used to generate the Rainbow * palette. */ static void setRainbowFrequency(float f) {_frequency = f;} /** * @brief Get the frequency value used to generate the Rainbow * palette. */ static float getRainbowFrequency() {return _frequency;} private: ksplot_color _col_c; /** The frequency value used to generate the Rainbow palette. */ static float _frequency; }; /** Hash table of colors. */ typedef std::unordered_map ColorTable; ColorTable getTaskColorTable(); ColorTable getCPUColorTable(); Color getColor(ColorTable *colors, int pid); /** Represents an abstract graphical element. */ class PlotObject { public: /** * @brief Create a default object. */ PlotObject() : _visible(true), _size(2.) {} /** * @brief Destroy the object. Keep this destructor virtual. */ virtual ~PlotObject() {} /** Generic function used to draw different objects. */ void draw() const { if (_visible) _draw(_color, _size); } /** Is this object visible. */ bool _visible; /** The color of the object. */ Color _color; /** The size of the object. */ float _size; private: virtual void _draw(const Color &col, float s) const = 0; }; /** List of graphical element. */ typedef std::forward_list PlotObjList; class Point; /** Represents an abstract shape. */ class Shape : public PlotObject { public: Shape(); Shape(int n); Shape(const Shape &); Shape(Shape &&); /* Keep this destructor virtual. */ virtual ~Shape(); void operator=(const Shape &s); void setPoint(size_t i, int x, int y); void setPoint(size_t i, const ksplot_point &p); void setPoint(size_t i, const Point &p); const ksplot_point *getPoint(size_t i) const; void setPointX(size_t i, int x); void setPointY(size_t i, int y); int getPointX(size_t i) const; int getPointY(size_t i) const; /** * @brief Get the number of point used to define the polygon. */ size_t pointCount() const {return _nPoints;} protected: /** The number of point used to define the polygon. */ size_t _nPoints; /** The array of point used to define the polygon. */ ksplot_point *_points; }; /** This class represents a 2D poin. */ class Point : public Shape { public: Point(); Point(int x, int y); /** * @brief Destroy the Point object. Keep this destructor virtual. */ virtual ~Point() {} /** @brief Get the horizontal coordinate of the point. */ int x() const {return getPointX(0);} /** @brief Get the vertical coordinate of the point. */ int y() const {return getPointY(0);} /** @brief Set the horizontal coordinate of the point. */ void setX(int x) {setPointX(0, x);} /** @brief Set the vertical coordinate of the point. */ void setY(int y) {setPointY(0, y);} /** * @brief Set the coordinats of the point. * * @param x: horizontal coordinate of the point in pixels. * @param y: vertical coordinate of the point in pixels. */ void set(int x, int y) {setPoint(0, x, y);} /** * @brief Get the C struct defining the point. */ const ksplot_point *point_c_ptr() const {return getPoint(0);} private: void _draw(const Color &col, float size = 1.) const override; }; void drawLine(const Point &a, const Point &b, const Color &col, float size); void drawDashedLine(const Point &a, const Point &b, const Color &col, float size, float period); /** This class represents a straight line. */ class Line : public Shape { public: Line(); Line(const Point &a, const Point &b); /** * @brief Destroy the Line object. Keep this destructor virtual. */ virtual ~Line() {} /** * @brief Set the coordinats of the first finishing point of the * line. * * @param x: horizontal coordinate of the point in pixels. * @param y: vertical coordinate of the point in pixels. */ void setA(int x, int y) { setPoint(0, x, y);} /** @brief Get the first finishing point of the line. */ const ksplot_point *getA() const {return getPoint(0);} /** * @brief Set the coordinats of the second finishing point of the * line. * * @param x: horizontal coordinate of the point in pixels. * @param y: vertical coordinate of the point in pixels. */ void setB(int x, int y) {setPoint(1, x, y);} /** @brief Get the second finishing point of the line. */ const ksplot_point *getB() const {return getPoint(1);} private: void _draw(const Color &col, float size = 1.) const override; }; /** This class represents a polygon. */ class Polygon : public Shape { public: Polygon(size_t n); /** * @brief Destroy the polygon object. Keep this destructor virtual. */ virtual ~Polygon() {} /** * @brief Specify the way the polygon will be drawn. * * @param f: If True, the area of the polygon will be colored. * Otherwise only the contour of the polygon will be plotted. */ void setFill(bool f) {_fill = f;} private: Polygon() = delete; void _draw(const Color &, float size = 1.) const override; /** * If True, the area of the polygon will be colored. Otherwise only * the contour of the polygon will be plotted. */ bool _fill; }; /** This class represents a triangle. */ class Triangle : public Polygon { public: /** * Create a default triangle. All points are initialized at (0, 0). */ Triangle() : Polygon(3) {} /** Destroy the Triangle object. Keep this destructor virtual. */ virtual ~Triangle() {} }; /** This class represents a rectangle. */ class Rectangle : public Polygon { public: /** * Create a default Rectangle. All points are initialized at (0, 0). */ Rectangle() : Polygon(4) {} /** Destroy the Rectangle object. Keep this destructor virtual. */ virtual ~Rectangle() {} }; /** * This class represents the graphical element of the KernelShark GUI marker. */ class Mark : public PlotObject { public: Mark(); /** * @brief Destroy the Mark object. Keep this destructor virtual. */ virtual ~Mark() {} void setDPR(int dpr); void setX(int x); void setY(int yA, int yB); void setCPUY(int yCPU); void setCPUVisible(bool v); void setTaskY(int yTask); void setTaskVisible(bool v); /** If True, the Mark will be plotted as a dashed line. */ void setDashed(bool d) {_dashed = d;} private: void _draw(const Color &col, float size = 1.) const override; /** First finishing point of the Mark's line. */ Point _a; /** Second finishing point of the Mark's line. */ Point _b; /** A point indicating the position of the Mark in a CPU graph. */ Point _cpu; /** A point indicating the position of the Mark in a Task graph. */ Point _task; /* If True, plot the Mark as a dashed line. */ bool _dashed; }; /** This class represents a KernelShark graph's bin. */ class Bin : public PlotObject { public: Bin(); /** * @brief Destroy the Bin object. Keep this destructor virtual. */ virtual ~Bin() {} void drawVal(float size = 2.); /** Get the height (module) of the line, representing the Bin. */ int mod() {return _val.y() - _base.y();} /** @brief Set the vertical coordinate of the "val" Point. */ void setVal(int v) {_val.setY(_base.y() - v); } /** * The Id value (pid or cpu) detected at the front (first in time) edge * of the bin. */ int _idFront; /** * The Id value (pid or cpu) detected at the back (last in time) edge * of the bin. */ int _idBack; /** Lower finishing point of the line, representing the Bin. */ Point _base; /** Upper finishing point of the line, representing the Bin. */ Point _val; /** A bit mask controlling the visibility of the Bin. */ uint8_t _visMask; private: void _draw(const Color &col, float size = 1.) const override; }; /** This class represents a KernelShark graph. */ class Graph { public: Graph(); /* * Disable copying. We can enable the Copy Constructor in the future, * but only if we really need it for some reason. */ Graph(const Graph &) = delete; /* Disable moving. Same as copying.*/ Graph(Graph &&) = delete; Graph(kshark_trace_histo *histo, KsPlot::ColorTable *bct, KsPlot::ColorTable *ect); /* Keep this destructor virtual. */ virtual ~Graph(); int size(); void setModelPtr(kshark_trace_histo *histo); /** * @brief Provide the Graph with a Data Collection. The collection * will be used to optimise the processing of the content of * the bins. * * @param col: Input location for the data collection descriptor. */ void setDataCollectionPtr(kshark_entry_collection *col) { _collectionPtr = col; } /** @brief Set the Hash table of Task's colors. */ void setBinColorTablePtr(KsPlot::ColorTable *ct) {_binColors = ct;} void fillCPUGraph(int cpu); void fillTaskGraph(int pid); void draw(float s = 1); void setBase(int b); /** @brief Get the vertical coordinate of the Graph's base. */ int getBase() const {return _bins[0]._base.y();} void setHeight(int h); /** @brief Get the vertical size (height) of the Graph. */ int getHeight() const {return _height;} void setBinValue(int bin, int val); void setBinPid(int bin, int pidF, int pidB); void setBinColor(int bin, const Color &col); void setBinVisMask(int bin, uint8_t m); void setBin(int bin, int pidF, int pidB, const Color &col, uint8_t m); /** @brief Get a particular bin. */ const Bin &getBin(int bin) const {return _bins[bin];} void setHMargin(int hMargin); /** * Check if this graph is Zero Suppressed. Zero Suppressed means that * bins having Id value = 0 (Idle task records) are not grouped * together. */ bool zeroSuppressed(bool zs) {return _zeroSuppress;} /** * Set Zero Suppression. If True, the bins having Id value = 0 (Idle * task records) are not grouped together. */ void setZeroSuppressed(bool zs) {_zeroSuppress = zs;} private: /** Pointer to the model descriptor object. */ kshark_trace_histo *_histoPtr; /** An array of Bins. */ Bin *_bins; /** The number of Bins. */ int _size; /** * The size (in pixels) of the white space added on both sides of * the Graph. */ int _hMargin; /** The vertical size (height) of the Graph. */ int _height; /** Pointer to the data collection object. */ kshark_entry_collection *_collectionPtr; /** Hash table of bin's colors. */ ColorTable *_binColors; /** Hash table of ensemble's colors. */ ColorTable *_ensembleColors; bool _zeroSuppress; void _initBins(); }; }; // KsPlot #endif /* _KS_PLOT_TOOLS_H */ trace-cmd-2.8.3/kernel-shark/src/KsPlugins.hpp000066400000000000000000000020471351617527000212020ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file KsPlugins.hpp * @brief KernelShark C++ plugin declarations. */ #ifndef _KS_PLUGINS_H #define _KS_PLUGINS_H // KernelShark #include "libkshark-model.h" #include "KsPlotTools.hpp" /** * Structure representing the vector of C++ arguments of the drawing function * of a plugin. */ struct KsCppArgV { /** Pointer to the model descriptor object. */ kshark_trace_histo *_histo; /** Pointer to the graph object. */ KsPlot::Graph *_graph; /** * Pointer to the list of shapes. All shapes created by the plugin * will be added to this list. */ KsPlot::PlotObjList *_shapes; /** * Convert the "this" pointer of the C++ argument vector into a * C pointer. */ kshark_cpp_argv *toC() { return reinterpret_cast(this); } }; /** * Macro used to convert a C pointer into a pointer to KsCppArgV (C++ struct). */ #define KS_ARGV_TO_CPP(a) (reinterpret_cast(a)) #endif trace-cmd-2.8.3/kernel-shark/src/KsQuickContextMenu.cpp000066400000000000000000000173741351617527000230330ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file KsQuickContextMenu.cpp * @brief Quick Context Menus for KernelShark. */ #include "KsQuickContextMenu.hpp" #include "KsTraceGraph.hpp" /** * @brief Create KsQuickMarkerMenu. * * @param dm: The State machine of the Dual marker. * @param parent: The parent of this widget. */ KsQuickMarkerMenu::KsQuickMarkerMenu(KsDualMarkerSM *dm, QWidget *parent) : QMenu("Context Menu", parent), _dm(dm), _deselectAction(this) { if (dm->activeMarker()._isSet) { addSection("Marker menu"); _deselectAction.setText("Deselect"); _deselectAction.setShortcut(tr("Ctrl+D")); _deselectAction.setStatusTip(tr("Deselect marker")); connect(&_deselectAction, &QAction::triggered, this, &KsQuickMarkerMenu::deselect); addAction(&_deselectAction); } } /** * @brief Create KsQuickContextMenu. * * @param data: Input location for the KsDataStore object. * @param row: The index of the entry used to initialize the menu. * @param dm: The State machine of the Dual marker. * @param parent: The parent of this widget. */ KsQuickContextMenu::KsQuickContextMenu(KsDataStore *data, size_t row, KsDualMarkerSM *dm, QWidget *parent) : KsQuickMarkerMenu(dm, parent), _data(data), _row(row), _graphSyncCBox(nullptr), _listSyncCBox(nullptr), _hideTaskAction(this), _showTaskAction(this), _hideEventAction(this), _showEventAction(this), _hideCPUAction(this), _showCPUAction(this), _addCPUPlotAction(this), _addTaskPlotAction(this), _removeCPUPlotAction(this), _removeTaskPlotAction(this), _clearAllFilters(this) { typedef void (KsQuickContextMenu::*mfp)(); QString taskName, parentName, descr; KsTraceGraph *graphs; int pid, cpu; if (!parent || !_data) return; taskName = kshark_get_task_easy(_data->rows()[_row]); pid = kshark_get_pid_easy(_data->rows()[_row]); cpu = _data->rows()[_row]->cpu; auto lamAddAction = [this, &descr] (QAction *action, mfp mf) { action->setText(descr); connect(action, &QAction::triggered, this, mf); addAction(action); }; parentName = parent->metaObject()->className(); addSection("Pointer filter menu"); descr = "Show task ["; descr += taskName; descr += "-"; descr += QString("%1").arg(pid); descr += "] only"; lamAddAction(&_showTaskAction, &KsQuickContextMenu::_showTask); descr = "Hide task ["; descr += taskName; descr += "-"; descr += QString("%1").arg(pid); descr += "]"; lamAddAction(&_hideTaskAction, &KsQuickContextMenu::_hideTask); descr = "Show event ["; descr += kshark_get_event_name_easy(_data->rows()[_row]); descr += "] only"; lamAddAction(&_showEventAction, &KsQuickContextMenu::_showEvent); descr = "Hide event ["; descr += kshark_get_event_name_easy(_data->rows()[_row]); descr += "]"; lamAddAction(&_hideEventAction, &KsQuickContextMenu::_hideEvent); if (parentName == "KsTraceViewer") { descr = QString("Show CPU [%1] only").arg(cpu); lamAddAction(&_showCPUAction, &KsQuickContextMenu::_showCPU); } descr = QString("Hide CPU [%1]").arg(_data->rows()[_row]->cpu); lamAddAction(&_hideCPUAction, &KsQuickContextMenu::_hideCPU); descr = "Clear all filters"; lamAddAction(&_clearAllFilters, &KsQuickContextMenu::_clearFilters); addSection("Pointer plot menu"); if (parentName == "KsTraceViewer") { descr = "Add ["; descr += taskName; descr += "-"; descr += QString("%1").arg(pid); descr += "] plot"; lamAddAction(&_addTaskPlotAction, &KsQuickContextMenu::_addTaskPlot); } if (parentName == "KsTraceGraph" && (graphs = dynamic_cast(parent))) { if (graphs->glPtr()->_taskList.contains(pid)) { descr = "Remove ["; descr += taskName; descr += "-"; descr += QString("%1").arg(_data->rows()[_row]->pid); descr += "] plot"; lamAddAction(&_removeTaskPlotAction, &KsQuickContextMenu::_removeTaskPlot); } else { descr = "Add ["; descr += taskName; descr += "-"; descr += QString("%1").arg(_data->rows()[_row]->pid); descr += "] plot"; lamAddAction(&_addTaskPlotAction, &KsQuickContextMenu::_addTaskPlot); } if (graphs->glPtr()->_cpuList.contains(cpu)) { descr = "Remove [CPU "; descr += QString("%1").arg(cpu); descr += "] plot"; lamAddAction(&_removeCPUPlotAction, &KsQuickContextMenu::_removeCPUPlot); } else { descr = "Add [CPU "; descr += QString("%1").arg(cpu); descr += "] plot"; lamAddAction(&_addCPUPlotAction, &KsQuickContextMenu::_addCPUPlot); } } } void KsQuickContextMenu::_hideTask() { int pid = kshark_get_pid_easy(_data->rows()[_row]); kshark_context *kshark_ctx(nullptr); QVector vec; if (!kshark_instance(&kshark_ctx)) return; vec =_getFilterVector(kshark_ctx->hide_task_filter, pid); _data->applyNegTaskFilter(vec); } void KsQuickContextMenu::_showTask() { int pid = kshark_get_pid_easy(_data->rows()[_row]); _data->applyPosTaskFilter(QVector(1, pid)); } void KsQuickContextMenu::_hideEvent() { int eventId = kshark_get_event_id_easy(_data->rows()[_row]); kshark_context *kshark_ctx(nullptr); QVector vec; if (!kshark_instance(&kshark_ctx)) return; vec =_getFilterVector(kshark_ctx->hide_event_filter, eventId); _data->applyNegEventFilter(vec); } void KsQuickContextMenu::_showEvent() { int eventId = kshark_get_event_id_easy(_data->rows()[_row]); _data->applyPosEventFilter(QVector(1, eventId)); } void KsQuickContextMenu::_showCPU() { int cpu = _data->rows()[_row]->cpu; _data->applyPosCPUFilter(QVector(1, cpu)); } void KsQuickContextMenu::_hideCPU() { kshark_context *kshark_ctx(nullptr); QVector vec; if (!kshark_instance(&kshark_ctx)) return; vec =_getFilterVector(kshark_ctx->hide_cpu_filter, _data->rows()[_row]->cpu); _data->applyNegCPUFilter(vec); } QVector KsQuickContextMenu::_getFilterVector(tracecmd_filter_id *filter, int newId) { QVector vec = KsUtils::getFilterIds(filter); if (!vec.contains(newId)) vec.append(newId); return vec; } void KsQuickContextMenu::_addTaskPlot() { int pid = kshark_get_pid_easy(_data->rows()[_row]); emit addTaskPlot(pid); } void KsQuickContextMenu::_addCPUPlot() { emit addCPUPlot(_data->rows()[_row]->cpu); } void KsQuickContextMenu::_removeTaskPlot() { int pid = kshark_get_pid_easy(_data->rows()[_row]); emit removeTaskPlot(pid); } void KsQuickContextMenu::_removeCPUPlot() { emit removeCPUPlot(_data->rows()[_row]->cpu); } /** * @brief Create KsRmPlotContextMenu. * * @param dm: The State machine of the Dual marker. * @param parent: The parent of this widget. */ KsRmPlotContextMenu::KsRmPlotContextMenu(KsDualMarkerSM *dm, QWidget *parent) : KsQuickMarkerMenu(dm, parent), _removePlotAction(this) { addSection("Plots"); connect(&_removePlotAction, &QAction::triggered, this, &KsRmPlotContextMenu::removePlot); addAction(&_removePlotAction); } /** * @brief Create KsRmCPUPlotMenu. * * @param dm: The State machine of the Dual marker. * @param cpu : CPU Id. * @param parent: The parent of this widget. */ KsRmCPUPlotMenu::KsRmCPUPlotMenu(KsDualMarkerSM *dm, int cpu, QWidget *parent) : KsRmPlotContextMenu(dm, parent) { _removePlotAction.setText(QString("Remove [CPU %1]").arg(cpu)); } /** * @brief Create KsRmTaskPlotMenu. * * @param dm: The State machine of the Dual marker. * @param pid: Process Id. * @param parent: The parent of this widget. */ KsRmTaskPlotMenu::KsRmTaskPlotMenu(KsDualMarkerSM *dm, int pid, QWidget *parent) : KsRmPlotContextMenu(dm, parent) { kshark_context *kshark_ctx(nullptr); QString descr("Remove [ "); if (!kshark_instance(&kshark_ctx)) return; descr += tep_data_comm_from_pid(kshark_ctx->pevent, pid); descr += "-"; descr += QString("%1").arg(pid); descr += "] plot"; _removePlotAction.setText(descr); } trace-cmd-2.8.3/kernel-shark/src/KsQuickContextMenu.hpp000066400000000000000000000055761351617527000230410ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file KsQuickContextMenu.hpp * @brief Quick Context Menus for KernelShark. */ #ifndef _KS_QUICK_CTX_MENU_H #define _KS_QUICK_CTX_MENU_H #include "KsDualMarker.hpp" #include "KsUtils.hpp" #include "KsGLWidget.hpp" /** * The KsQuickMarkerMenu class provides menu for quick Dual Marker related * actions. */ class KsQuickMarkerMenu : public QMenu { Q_OBJECT public: KsQuickMarkerMenu(KsDualMarkerSM *dm, QWidget *parent = nullptr); signals: /** Signal to deselect the active marker. */ void deselect(); private: KsDualMarkerSM *_dm; QAction _deselectAction; }; /** * The KsQuickFilterMenu class provides a menu for easy filtering and plotting. * The menu is initialized from a single kshark_entry and uses the content of * this entry to provides quick actions for filtering and plottin. */ class KsQuickContextMenu : public KsQuickMarkerMenu { Q_OBJECT public: KsQuickContextMenu() = delete; KsQuickContextMenu(KsDataStore *data, size_t row, KsDualMarkerSM *dm, QWidget *parent = nullptr); signals: /** Signal to add a task plot. */ void addTaskPlot(int); /** Signal to add a CPU plot. */ void addCPUPlot(int); /** Signal to remove a task plot. */ void removeTaskPlot(int); /** Signal to remove a CPU plot. */ void removeCPUPlot(int); private: void _hideTask(); void _showTask(); void _hideEvent(); void _showEvent(); void _showCPU(); void _hideCPU(); void _addCPUPlot(); void _addTaskPlot(); void _removeCPUPlot(); void _removeTaskPlot(); QVector _getFilterVector(tracecmd_filter_id *filter, int newId); void _clearFilters() {_data->clearAllFilters();} KsDataStore *_data; size_t _row; QCheckBox *_graphSyncCBox, *_listSyncCBox; QAction _hideTaskAction, _showTaskAction; QAction _hideEventAction, _showEventAction; QAction _hideCPUAction, _showCPUAction; QAction _addCPUPlotAction; QAction _addTaskPlotAction; QAction _removeCPUPlotAction; QAction _removeTaskPlotAction; QAction _clearAllFilters; }; /** * The KsQuickMarkerMenu is a baser class for Remove Plot menus. */ class KsRmPlotContextMenu : public KsQuickMarkerMenu { Q_OBJECT public: KsRmPlotContextMenu() = delete; KsRmPlotContextMenu(KsDualMarkerSM *dm, QWidget *parent = nullptr); signals: /** Signal to remove a plot. */ void removePlot(int); protected: /** Menu action. */ QAction _removePlotAction; }; /** * The KsQuickMarkerMenu class provides CPU Plot remove menus. */ struct KsRmCPUPlotMenu : public KsRmPlotContextMenu { KsRmCPUPlotMenu(KsDualMarkerSM *dm, int cpu, QWidget *parent = nullptr); }; /** * The KsQuickMarkerMenu class provides Task Plot remove menus. */ struct KsRmTaskPlotMenu : public KsRmPlotContextMenu { KsRmTaskPlotMenu(KsDualMarkerSM *dm, int pid, QWidget *parent = nullptr); }; #endif trace-cmd-2.8.3/kernel-shark/src/KsSearchFSM.cpp000066400000000000000000000125361351617527000213330ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file KsSearchFSM.cpp * @brief Finite-state machine for searching in trace data. */ // KernelShark #include "KsSearchFSM.hpp" #include "KsUtils.hpp" #include "KsTraceViewer.hpp" #include "KsWidgetsLib.hpp" static bool notHaveCond(const QString &searchText, const QString &itemText) { return !itemText.contains(searchText, Qt::CaseInsensitive); } static bool containsCond(const QString &searchText, const QString &itemText) { return itemText.contains(searchText, Qt::CaseInsensitive); } static bool matchCond(const QString &searchText, const QString &itemText) { return (itemText.compare(searchText, Qt::CaseInsensitive) == 0); } static bool noCond(const QString &searchText, const QString &itemText) { return false; } /** Create a Finite-state machine for searching. */ KsSearchFSM::KsSearchFSM(QWidget *parent) : _currentState(new NotDone), _lastRowSearched(0), _searchProgBar(parent), _searchCountLabel("", parent), _columnComboBox(parent), _selectComboBox(parent), _searchLineEdit(parent), _prevButton("Prev", parent), _nextButton("Next", parent), _searchRestartButton(QIcon::fromTheme("media-playback-start"), "", parent), // _searchStopButton(QIcon::fromTheme("media-playback-pause"), "", parent), _searchStopButton(QIcon::fromTheme("process-stop"), "", parent), _cond(nullptr), _pbAction(nullptr), _searchStopAction(nullptr), _searchRestartAction(nullptr) { int bWidth = FONT_WIDTH * 6; _nextButton.setFixedWidth(bWidth); _prevButton.setFixedWidth(bWidth); _searchProgBar.setMaximumWidth(FONT_WIDTH * 10); _searchProgBar.setRange(0, KS_PROGRESS_BAR_MAX); _selectComboBox.addItem("contains"); _selectComboBox.addItem("full match"); _selectComboBox.addItem("does not have"); updateCondition(); } /** * Position all buttons and labels of the Finite-state machine for searching * in a toolbar. */ void KsSearchFSM::placeInToolBar(QToolBar *tb) { tb->addWidget(&_columnComboBox); tb->addWidget(&_selectComboBox); tb->addWidget(&_searchLineEdit); tb->addSeparator(); tb->addWidget(&_nextButton); tb->addWidget(&_prevButton); tb->addSeparator(); _pbAction = tb->addWidget(&_searchProgBar); _pbAction->setVisible(false); tb->addWidget(&_searchCountLabel); _searchStopAction = tb->addWidget(&_searchStopButton); _searchStopAction->setVisible(false); _searchRestartAction = tb->addWidget(&_searchRestartButton); _searchRestartAction->setVisible(false); tb->addSeparator(); } /** * Update the Matching condition function of the search according to the user * input. */ void KsSearchFSM::updateCondition() { int xSelect = _selectComboBox.currentIndex(); switch (xSelect) { case Condition::Containes: _cond = containsCond; return; case Condition::Match: _cond = matchCond; return; case Condition::NotHave: _cond = notHaveCond; return; default: _cond = noCond; return; } } void KsSearchFSM ::_lockSearchPanel(bool lock) { _columnComboBox.setEnabled(!lock); _selectComboBox.setEnabled(!lock); _searchLineEdit.setReadOnly(lock); _prevButton.setEnabled(!lock); _nextButton.setEnabled(!lock); // _graphFollowsCheckBox.setEnabled(!lock); } /** Act according to the provided input. */ void NotDone::handleInput(KsSearchFSM* sm, sm_input_t input) { switch(input) { case sm_input_t::Start: sm->_lastRowSearched = -1; sm->lockSearchPanel(); sm->updateCondition(); sm->progressBarVisible(true); if (sm->column() == KsViewModel::TRACE_VIEW_COL_INFO || sm->column() == KsViewModel::TRACE_VIEW_COL_LAT) sm->searchStopVisible(true); sm->changeState(std::shared_ptr(new InProgress)); break; case sm_input_t::Finish: sm->changeState(std::shared_ptr(new Done)); break; default: /* Ignore the input. */ break; } } /** Act according to the provided input. */ void Paused::handleInput(KsSearchFSM* sm, sm_input_t input) { switch(input) { case sm_input_t::Start: sm->lockSearchPanel(); sm->searchStopVisible(true); sm->searchRestartVisible(false); sm->changeState(std::shared_ptr(new InProgress)); break; case sm_input_t::Change: sm->_searchProgBar.setValue(0); sm->_searchCountLabel.setText(""); sm->progressBarVisible(false); sm->searchRestartVisible(false); sm->changeState(std::shared_ptr(new NotDone)); break; default: /* Ignore the input. */ break; } } /** Act according to the provided input. */ void InProgress::handleInput(KsSearchFSM* sm, sm_input_t input) { auto lamUnlock = [&sm] () { sm->searchStopVisible(false); sm->unlockSearchPanel(); }; switch(input) { case sm_input_t::Stop: lamUnlock(); sm->searchRestartVisible(true); sm->changeState(std::shared_ptr(new Paused)); break; case sm_input_t::Finish: lamUnlock(); sm->progressBarVisible(false); sm->changeState(std::shared_ptr(new Done)); break; default: /* Ignore the input. */ break; } } /** Act according to the provided input. */ void Done::handleInput(KsSearchFSM* sm, sm_input_t i) { switch(i) { case sm_input_t::Change: sm->_searchProgBar.setValue(0); sm->progressBarVisible(false); sm->_searchCountLabel.setText(""); sm->searchStopVisible(false); sm->searchRestartVisible(false); sm->changeState(std::shared_ptr(new NotDone)); break; default: /* Ignore the input. */ break; } } trace-cmd-2.8.3/kernel-shark/src/KsSearchFSM.hpp000066400000000000000000000111461351617527000213340ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file KsSearchFSM.hpp * @brief Finite-state machine for searching in trace data. */ #ifndef _KS_SEARCH_FSM_H #define _KS_SEARCH_FSM_H // C++11 #include // Qt #include /** Matching condition function type. To be user for searching. */ typedef bool (*search_condition_func)(const QString &, const QString &); /** State Identifiers of the Finite-state machine for searching. */ enum class search_state_t { /** Identifier of the "NotDone" state. */ NotDone_s = 0, /** Identifier of the "InProgress" state. */ InProgress_s = 1, /** Identifier of the "Paused" state. */ Paused_s = 2, /** Identifier of the "Done" state. */ Done_s = 3 }; /** Inputs of the Finite-state machine for searching. */ enum class sm_input_t { Start = 0, Stop = 1, Finish = 2, Change = 3 }; class KsSearchFSM; /** * State provides a base class for the states of the Finite-state machine for * searching. */ struct State { /** Virtual destructor. */ virtual ~State() {} /** * Act according to the provided input. This is a pure virtual * function. */ virtual void handleInput(KsSearchFSM* sm, sm_input_t i) = 0; /** * Get the identifier of this state. This is a pure virtual function. */ virtual search_state_t id() = 0; }; /** "NotDone" state. */ struct NotDone : public State { void handleInput(KsSearchFSM* sm, sm_input_t i) override; search_state_t id() override {return search_state_t::NotDone_s;} }; /** "InProgress" state. */ struct InProgress : public State { void handleInput(KsSearchFSM* sm, sm_input_t i) override; /** Get the identifier of this state. */ search_state_t id() override {return search_state_t::InProgress_s;} }; /** "Paused" state. */ struct Paused : public State { void handleInput(KsSearchFSM* sm, sm_input_t i) override; /** Get the identifier of this state. */ search_state_t id() override {return search_state_t::Paused_s;} }; /** "Done" state. */ struct Done : public State { void handleInput(KsSearchFSM* sm, sm_input_t i) override; /** Get the identifier of this state. */ search_state_t id() override {return search_state_t::Done_s;} }; /** Finite-state machine for searching. */ class KsSearchFSM : public QWidget { Q_OBJECT public: explicit KsSearchFSM(QWidget *parent = nullptr); void placeInToolBar(QToolBar *tb); /** Act according to the provided input. */ void handleInput(sm_input_t input) { _currentState->handleInput(this, input); } /** Switch the state. */ void changeState(std::shared_ptr newState) { _currentState = newState; } /** Get the identifier of the Current state. */ search_state_t getState() const {return _currentState->id();} /** Get the data column to search in. */ int column() const {return _columnComboBox.currentIndex();} /** Get the Matching condition function. */ search_condition_func condition() const {return _cond;} /** Get the text to search for. */ QString searchText() const {return _searchLineEdit.text();} /** Set the value of the Search Progress Bar. */ void setProgress(int v) {_searchProgBar.setValue(v);} /** Increment the value of the Search Progress Bar. */ void incrementProgress() { _searchProgBar.setValue(_searchProgBar.value() + 1); } void updateCondition(); /** Disable the user searching input (lock the panel). */ void lockSearchPanel() {_lockSearchPanel(true);} /** Enable the user searching input (unlock the panel). */ void unlockSearchPanel() {_lockSearchPanel(false);} /** Set the visibility of the Search Progress Bar. */ void progressBarVisible(bool v) {_pbAction->setVisible(v);} /** Set the visibility of the Search Stop button. */ void searchStopVisible(bool v) {_searchStopAction->setVisible(v);} /** Set the visibility of the Search Restart button. */ void searchRestartVisible(bool v) {_searchRestartAction->setVisible(v);} /** Current State of the Finite-state machine for searching. */ std::shared_ptr _currentState; /** * Last row, tested for matching. To be used when restarting the * search. */ ssize_t _lastRowSearched; //! @cond Doxygen_Suppress QProgressBar _searchProgBar; QLabel _searchCountLabel; QComboBox _columnComboBox; QComboBox _selectComboBox; QLineEdit _searchLineEdit; QPushButton _prevButton, _nextButton; QPushButton _searchRestartButton, _searchStopButton; //! @endcond private: search_condition_func _cond; QAction *_pbAction, *_searchStopAction, *_searchRestartAction; void _lockSearchPanel(bool lock); enum Condition { Containes = 0, Match = 1, NotHave = 2 }; }; #endif trace-cmd-2.8.3/kernel-shark/src/KsSession.cpp000066400000000000000000000362651351617527000212100ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsSession.cpp * @brief KernelShark Session. */ // KernelShark #include "libkshark.h" #include "KsSession.hpp" #include "KsMainWindow.hpp" /** Create a KsSession object. */ KsSession::KsSession() { _config = kshark_config_new("kshark.config.session", KS_CONFIG_JSON); } /** Destroy a KsSession object. */ KsSession::~KsSession() { kshark_free_config_doc(_config); } /** Import a user session from a Json file. */ bool KsSession::importFromFile(QString jfileName) { kshark_config_doc *configTmp = kshark_open_config_file(jfileName.toStdString().c_str(), "kshark.config.session"); if (configTmp) { kshark_free_config_doc(_config); _config = configTmp; return true; } return false; } /** Export the current user session from a Json file. */ void KsSession::exportToFile(QString jfileName) { kshark_save_config_file(jfileName.toStdString().c_str(), _config); } /** * @brief Save the state of the visualization model. * * @param histo: Input location for the model descriptor. */ void KsSession::saveVisModel(kshark_trace_histo *histo) { kshark_config_doc *model = kshark_export_model(histo, KS_CONFIG_JSON); kshark_config_doc_add(_config, "Model", model); } /** * @brief Load the state of the visualization model. * * @param model: Input location for the KsGraphModel object. */ void KsSession::loadVisModel(KsGraphModel *model) { kshark_config_doc *modelConf = kshark_config_alloc(KS_CONFIG_JSON); if (!kshark_config_doc_get(_config, "Model", modelConf)) return; kshark_import_model(model->histo(), modelConf); model->update(); } /** Save the trace data file. */ void KsSession::saveDataFile(QString fileName) { kshark_config_doc *file = kshark_export_trace_file(fileName.toStdString().c_str(), KS_CONFIG_JSON); kshark_config_doc_add(_config, "Data", file); } /** Get the trace data file. */ QString KsSession::getDataFile(kshark_context *kshark_ctx) { kshark_config_doc *file = kshark_config_alloc(KS_CONFIG_JSON); const char *file_str; if (!kshark_config_doc_get(_config, "Data", file)) return QString(); file_str = kshark_import_trace_file(kshark_ctx, file); if (file_str) return QString(file_str); return QString(); } /** * @brief Save the configuration of the filters. * * @param kshark_ctx: Input location for context pointer. */ void KsSession::saveFilters(kshark_context *kshark_ctx) { kshark_config_doc *filters = kshark_export_all_filters(kshark_ctx, KS_CONFIG_JSON); kshark_config_doc_add(_config, "Filters", filters); } /** * @brief Load the configuration of the filters and filter the data. * * @param kshark_ctx: Input location for context pointer. * @param data: Input location for KsDataStore object; */ void KsSession::loadFilters(kshark_context *kshark_ctx, KsDataStore *data) { kshark_config_doc *filters = kshark_config_alloc(KS_CONFIG_JSON); if (!kshark_config_doc_get(_config, "Filters", filters)) return; kshark_import_all_filters(kshark_ctx, filters); if (kshark_ctx->advanced_event_filter->filters) data->reload(); else kshark_filter_entries(kshark_ctx, data->rows(), data->size()); data->registerCPUCollections(); emit data->updateWidgets(data); } /** * @brief Save the state of the table. * * @param view: Input location for the KsTraceViewer widget. */ void KsSession::saveTable(const KsTraceViewer &view) { kshark_config_doc *topRow = kshark_config_alloc(KS_CONFIG_JSON); int64_t r = view.getTopRow(); topRow->conf_doc = json_object_new_int64(r); kshark_config_doc_add(_config, "ViewTop",topRow); } /** * @brief Load the state of the table. * * @param view: Input location for the KsTraceViewer widget. */ void KsSession::loadTable(KsTraceViewer *view) { kshark_config_doc *topRow = kshark_config_alloc(KS_CONFIG_JSON); size_t r = 0; if (!kshark_config_doc_get(_config, "ViewTop", topRow)) return; if (_config->format == KS_CONFIG_JSON) r = json_object_get_int64(KS_JSON_CAST(topRow->conf_doc)); view->setTopRow(r); } /** * @brief Save the KernelShark Main window size. * * @param window: Input location for the KsMainWindow widget. */ void KsSession::saveMainWindowSize(const QMainWindow &window) { kshark_config_doc *windowConf = kshark_config_alloc(KS_CONFIG_JSON); int width = window.width(), height = window.height(); json_object *jwindow; if (window.isFullScreen()) { jwindow = json_object_new_string("FullScreen"); } else { jwindow = json_object_new_array(); json_object_array_put_idx(jwindow, 0, json_object_new_int(width)); json_object_array_put_idx(jwindow, 1, json_object_new_int(height)); } windowConf->conf_doc = jwindow; kshark_config_doc_add(_config, "MainWindow", windowConf); } /** * @brief Load the KernelShark Main window size. * * @param window: Input location for the KsMainWindow widget. */ void KsSession::loadMainWindowSize(KsMainWindow *window) { kshark_config_doc *windowConf = kshark_config_alloc(KS_CONFIG_JSON); json_object *jwindow, *jwidth, *jheight; int width, height; if (!kshark_config_doc_get(_config, "MainWindow", windowConf)) return; if (_config->format == KS_CONFIG_JSON) { jwindow = KS_JSON_CAST(windowConf->conf_doc); if (json_object_get_type(jwindow) == json_type_string && QString(json_object_get_string(jwindow)) == "FullScreen") { window->setFullScreenMode(true); return; } jwidth = json_object_array_get_idx(jwindow, 0); jheight = json_object_array_get_idx(jwindow, 1); width = json_object_get_int(jwidth); height = json_object_get_int(jheight); window->setFullScreenMode(false); window->resize(width, height); } } /** * @brief Save the state of the Main window spliter. * * @param splitter: Input location for the splitter widget. */ void KsSession::saveSplitterSize(const QSplitter &splitter) { kshark_config_doc *spl = kshark_config_alloc(KS_CONFIG_JSON); json_object *jspl = json_object_new_array(); QList sizes = splitter.sizes(); json_object_array_put_idx(jspl, 0, json_object_new_int(sizes[0])); json_object_array_put_idx(jspl, 1, json_object_new_int(sizes[1])); spl->conf_doc = jspl; kshark_config_doc_add(_config, "Splitter", spl); } /** * @brief Load the state of the Main window spliter. * * @param splitter: Input location for the splitter widget. */ void KsSession::loadSplitterSize(QSplitter *splitter) { kshark_config_doc *spl = kshark_config_alloc(KS_CONFIG_JSON); json_object *jspl, *jgraphsize, *jviewsize; int graphSize(1), viewSize(1); QList sizes; if (!kshark_config_doc_get(_config, "Splitter", spl)) return; if (_config->format == KS_CONFIG_JSON) { jspl = KS_JSON_CAST(spl->conf_doc); jgraphsize = json_object_array_get_idx(jspl, 0); jviewsize = json_object_array_get_idx(jspl, 1); graphSize = json_object_get_int(jgraphsize); viewSize = json_object_get_int(jviewsize); if (graphSize == 0 && viewSize == 0) { /* 0/0 spliter ratio is undefined. Make it 1/1. */ viewSize = graphSize = 1; } } sizes << graphSize << viewSize; splitter->setSizes(sizes); } /** @brief Save the Color scheme used. */ void KsSession::saveColorScheme() { kshark_config_doc *colSch = kshark_config_alloc(KS_CONFIG_JSON); double s = KsPlot::Color::getRainbowFrequency(); colSch->conf_doc = json_object_new_double(s); kshark_config_doc_add(_config, "ColorScheme", colSch); } /** @brief Get the Color scheme used. */ float KsSession::getColorScheme() { kshark_config_doc *colSch = kshark_config_alloc(KS_CONFIG_JSON); /* Default color scheme. */ float s = 0.75; if (!kshark_config_doc_get(_config, "ColorScheme", colSch)) return s; if (_config->format == KS_CONFIG_JSON) s = json_object_get_double(KS_JSON_CAST(colSch->conf_doc)); return s; } /** * @brief Save the list of the graphs plotted. * * @param glw: Input location for the KsGLWidget widget. */ void KsSession::saveGraphs(const KsGLWidget &glw) { _saveCPUPlots(glw._cpuList); _saveTaskPlots(glw._taskList); } /** * @brief Load the list of the graphs and plot. * * @param graphs: Input location for the KsTraceGraph widget. */ void KsSession::loadGraphs(KsTraceGraph *graphs) { graphs->cpuReDraw(_getCPUPlots()); graphs->taskReDraw(_getTaskPlots()); } void KsSession::_saveCPUPlots(const QVector &cpus) { kshark_config_doc *cpuPlts = kshark_config_alloc(KS_CONFIG_JSON); json_object *jcpus = json_object_new_array(); for (int i = 0; i < cpus.count(); ++i) { json_object *jcpu = json_object_new_int(cpus[i]); json_object_array_put_idx(jcpus, i, jcpu); } cpuPlts->conf_doc = jcpus; kshark_config_doc_add(_config, "CPUPlots", cpuPlts); } QVector KsSession::_getCPUPlots() { kshark_config_doc *cpuPlts = kshark_config_alloc(KS_CONFIG_JSON); json_object *jcpus; QVector cpus; size_t length; if (!kshark_config_doc_get(_config, "CPUPlots", cpuPlts)) return cpus; if (_config->format == KS_CONFIG_JSON) { jcpus = KS_JSON_CAST(cpuPlts->conf_doc); length = json_object_array_length(jcpus); for (size_t i = 0; i < length; ++i) { int cpu = json_object_get_int(json_object_array_get_idx(jcpus, i)); cpus.append(cpu); } } return cpus; } void KsSession::_saveTaskPlots(const QVector &tasks) { kshark_config_doc *taskPlts = kshark_config_alloc(KS_CONFIG_JSON); json_object *jtasks = json_object_new_array(); for (int i = 0; i < tasks.count(); ++i) { json_object *jtask = json_object_new_int(tasks[i]); json_object_array_put_idx(jtasks, i, jtask); } taskPlts->conf_doc = jtasks; kshark_config_doc_add(_config, "TaskPlots", taskPlts); } QVector KsSession::_getTaskPlots() { kshark_config_doc *taskPlts = kshark_config_alloc(KS_CONFIG_JSON); json_object *jtasks; QVector tasks; size_t length; if (!kshark_config_doc_get(_config, "TaskPlots", taskPlts)) return tasks; if (_config->format == KS_CONFIG_JSON) { jtasks = KS_JSON_CAST(taskPlts->conf_doc); length = json_object_array_length(jtasks); for (size_t i = 0; i < length; ++i) { int pid = json_object_get_int(json_object_array_get_idx(jtasks, i)); tasks.append(pid); } } return tasks; } /** * @brief Save the state of the Dual marker. * * @param dm: Input location for the KsDualMarkerSM object. */ void KsSession::saveDualMarker(KsDualMarkerSM *dm) { struct kshark_config_doc *markers = kshark_config_new("kshark.config.markers", KS_CONFIG_JSON); json_object *jd_mark = KS_JSON_CAST(markers->conf_doc); auto save_mark = [&jd_mark] (KsGraphMark *m, const char *name) { json_object *jmark = json_object_new_object(); if (m->_isSet) { json_object_object_add(jmark, "isSet", json_object_new_boolean(true)); json_object_object_add(jmark, "row", json_object_new_int(m->_pos)); } else { json_object_object_add(jmark, "isSet", json_object_new_boolean(false)); } json_object_object_add(jd_mark, name, jmark); }; save_mark(&dm->markerA(), "markA"); save_mark(&dm->markerB(), "markB"); if (dm->getState() == DualMarkerState::A) json_object_object_add(jd_mark, "Active", json_object_new_string("A")); else json_object_object_add(jd_mark, "Active", json_object_new_string("B")); kshark_config_doc_add(_config, "Markers", markers); } /** * @brief Load the state of the Dual marker. * * @param dm: Input location for the KsDualMarkerSM object. * @param graphs: Input location for the KsTraceGraph widget. */ void KsSession::loadDualMarker(KsDualMarkerSM *dm, KsTraceGraph *graphs) { size_t pos; dm->reset(); dm->setState(DualMarkerState::A); if (_getMarker("markA", &pos)) { graphs->markEntry(pos); } else { dm->markerA().remove(); } dm->setState(DualMarkerState::B); if (_getMarker("markB", &pos)) { graphs->markEntry(pos); } else { dm->markerB().remove(); } dm->setState(_getMarkerState()); if (dm->activeMarker()._isSet) { pos = dm->activeMarker()._pos; emit graphs->glPtr()->updateView(pos, true); } } json_object *KsSession::_getMarkerJson() { struct kshark_config_doc *markers = kshark_config_alloc(KS_CONFIG_JSON); if (!kshark_config_doc_get(_config, "Markers", markers) || !kshark_type_check(markers, "kshark.config.markers")) return nullptr; return KS_JSON_CAST(markers->conf_doc); } bool KsSession::_getMarker(const char* name, size_t *pos) { json_object *jd_mark, *jmark; *pos = 0; jd_mark = _getMarkerJson(); if (!jd_mark) return false; if (json_object_object_get_ex(jd_mark, name, &jmark)) { json_object *jis_set; json_object_object_get_ex(jmark, "isSet", &jis_set); if (!json_object_get_boolean(jis_set)) return false; json_object *jpos; json_object_object_get_ex(jmark, "row", &jpos); *pos = json_object_get_int64(jpos); } return true; } DualMarkerState KsSession::_getMarkerState() { json_object *jd_mark, *jstate; const char* state; jd_mark = _getMarkerJson(); json_object_object_get_ex(jd_mark, "Active", &jstate); state = json_object_get_string(jstate); if (strcmp(state, "A") == 0) return DualMarkerState::A; return DualMarkerState::B; } /** * @brief Save the configuration of the plugins. * * @param pm: Input location for the KsPluginManager object. */ void KsSession::savePlugins(const KsPluginManager &pm) { struct kshark_config_doc *plugins = kshark_config_new("kshark.config.plugins", KS_CONFIG_JSON); json_object *jplugins = KS_JSON_CAST(plugins->conf_doc); const QVector ®isteredPlugins = pm._registeredKsPlugins; const QStringList &pluginList = pm._ksPluginList; int nPlugins = pluginList.length(); json_object *jlist, *jpl; QByteArray array; char* buffer; bool active; jlist = json_object_new_array(); for (int i = 0; i < nPlugins; ++i) { array = pluginList[i].toLocal8Bit(); buffer = array.data(); jpl = json_object_new_array(); json_object_array_put_idx(jpl, 0, json_object_new_string(buffer)); active = registeredPlugins[i]; json_object_array_put_idx(jpl, 1, json_object_new_boolean(active)); json_object_array_put_idx(jlist, i, jpl); } json_object_object_add(jplugins, "Plugin List", jlist); kshark_config_doc_add(_config, "Plugins", plugins); } /** * @brief Load the configuration of the plugins. * * @param kshark_ctx: Input location for context pointer. * @param pm: Input location for the KsPluginManager object. */ void KsSession::loadPlugins(kshark_context *kshark_ctx, KsPluginManager *pm) { kshark_config_doc *plugins = kshark_config_alloc(KS_CONFIG_JSON); json_object *jplugins, *jlist, *jpl; const char *pluginName; QVector pluginIds; int length, index; bool loaded; if (!kshark_config_doc_get(_config, "Plugins", plugins) || !kshark_type_check(plugins, "kshark.config.plugins")) return; if (plugins->format == KS_CONFIG_JSON) { jplugins = KS_JSON_CAST(plugins->conf_doc); json_object_object_get_ex(jplugins, "Plugin List", &jlist); if (!jlist || json_object_get_type(jlist) != json_type_array || !json_object_array_length(jlist)) return; length = json_object_array_length(jlist); for (int i = 0; i < length; ++i) { jpl = json_object_array_get_idx(jlist, i); pluginName = json_object_get_string(json_object_array_get_idx(jpl, 0)); index = pm->_ksPluginList.indexOf(pluginName); loaded = json_object_get_boolean(json_object_array_get_idx(jpl, 1)); if (index >= 0 && loaded) pluginIds.append(index); } } pm->updatePlugins(pluginIds); } trace-cmd-2.8.3/kernel-shark/src/KsSession.hpp000066400000000000000000000041261351617527000212040ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsSession.hpp * @brief KernelShark Session. */ #ifndef _KS_SESSION_H #define _KS_SESSION_H // Qt #include // KernelShark #include "KsDualMarker.hpp" #include "KsTraceGraph.hpp" #include "KsTraceViewer.hpp" class KsMainWindow; /** * The KsSession class provides instruments for importing/exporting the state * of the different components of the GUI from/to Json documents. These * instruments are used to save/load user session in the GUI. */ class KsSession { public: KsSession(); virtual ~KsSession(); /** Get the configuration document object. */ kshark_config_doc *getConfDocPtr() const {return _config;} bool importFromFile(QString jfileName); void exportToFile(QString jfileName); void saveDataFile(QString fileName); QString getDataFile(kshark_context *kshark_ctx); void saveVisModel(kshark_trace_histo *histo); void loadVisModel(KsGraphModel *model); void saveGraphs(const KsGLWidget &glw); void loadGraphs(KsTraceGraph *graphs); void saveFilters(kshark_context *kshark_ctx); void loadFilters(kshark_context *kshark_ctx, KsDataStore *data); void saveMainWindowSize(const QMainWindow &window); void loadMainWindowSize(KsMainWindow *window); void saveSplitterSize(const QSplitter &splitter); void loadSplitterSize(QSplitter *splitter); void saveDualMarker(KsDualMarkerSM *dm); void loadDualMarker(KsDualMarkerSM *dmm, KsTraceGraph *graphs); void savePlugins(const KsPluginManager &pm); void loadPlugins(kshark_context *kshark_ctx, KsPluginManager *pm); void saveTable(const KsTraceViewer &view); void loadTable(KsTraceViewer *view); void saveColorScheme(); float getColorScheme(); private: kshark_config_doc *_config; json_object *_getMarkerJson(); void _saveCPUPlots(const QVector &cpus); QVector _getCPUPlots(); void _saveTaskPlots(const QVector &tasks); QVector _getTaskPlots(); bool _getMarker(const char* name, size_t *pos); DualMarkerState _getMarkerState(); }; #endif trace-cmd-2.8.3/kernel-shark/src/KsTraceGraph.cpp000066400000000000000000000502551351617527000216000ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsTraceGraph.cpp * @brief KernelShark Trace Graph widget. */ // KernelShark #include "KsUtils.hpp" #include "KsDualMarker.hpp" #include "KsTraceGraph.hpp" #include "KsQuickContextMenu.hpp" /** Create a default (empty) Trace graph widget. */ KsTraceGraph::KsTraceGraph(QWidget *parent) : QWidget(parent), _pointerBar(this), _navigationBar(this), _zoomInButton("+", this), _quickZoomInButton("++", this), _zoomOutButton("-", this), _quickZoomOutButton("- -", this), _scrollLeftButton("<", this), _scrollRightButton(">", this), _labelP1("Pointer: ", this), _labelP2("", this), _labelI1("", this), _labelI2("", this), _labelI3("", this), _labelI4("", this), _labelI5("", this), _scrollArea(this), _drawWindow(&_scrollArea), _legendWindow(&_drawWindow), _legendAxisX(&_drawWindow), _labelXMin("", &_legendAxisX), _labelXMid("", &_legendAxisX), _labelXMax("", &_legendAxisX), _glWindow(&_drawWindow), _mState(nullptr), _data(nullptr), _keyPressed(false) { auto lamMakeNavButton = [&](QPushButton *b) { b->setMaximumWidth(FONT_WIDTH * 5); connect(b, &QPushButton::released, this, &KsTraceGraph::_stopUpdating); _navigationBar.addWidget(b); }; _pointerBar.setMaximumHeight(FONT_HEIGHT * 1.75); _pointerBar.setOrientation(Qt::Horizontal); _navigationBar.setMaximumHeight(FONT_HEIGHT * 1.75); _navigationBar.setMinimumWidth(FONT_WIDTH * 90); _navigationBar.setOrientation(Qt::Horizontal); _pointerBar.addWidget(&_labelP1); _labelP2.setFrameStyle(QFrame::Panel | QFrame::Sunken); _labelP2.setStyleSheet("QLabel { background-color : white;}"); _labelP2.setTextInteractionFlags(Qt::TextSelectableByMouse); _labelP2.setFixedWidth(FONT_WIDTH * 16); _pointerBar.addWidget(&_labelP2); _pointerBar.addSeparator(); _labelI1.setStyleSheet("QLabel {color : blue;}"); _labelI2.setStyleSheet("QLabel {color : green;}"); _labelI3.setStyleSheet("QLabel {color : red;}"); _labelI4.setStyleSheet("QLabel {color : blue;}"); _labelI5.setStyleSheet("QLabel {color : green;}"); _pointerBar.addWidget(&_labelI1); _pointerBar.addSeparator(); _pointerBar.addWidget(&_labelI2); _pointerBar.addSeparator(); _pointerBar.addWidget(&_labelI3); _pointerBar.addSeparator(); _pointerBar.addWidget(&_labelI4); _pointerBar.addSeparator(); _pointerBar.addWidget(&_labelI5); _legendAxisX.setFixedHeight(FONT_HEIGHT * 1.5); _legendAxisX.setLayout(new QHBoxLayout); _legendAxisX.layout()->setSpacing(0); _legendAxisX.layout()->setContentsMargins(0, 0, FONT_WIDTH, 0); _labelXMin.setAlignment(Qt::AlignLeft); _labelXMid.setAlignment(Qt::AlignHCenter); _labelXMax.setAlignment(Qt::AlignRight); _legendAxisX.layout()->addWidget(&_labelXMin); _legendAxisX.layout()->addWidget(&_labelXMid); _legendAxisX.layout()->addWidget(&_labelXMax); _drawWindow.setMinimumSize(100, 100); _drawWindow.setStyleSheet("QWidget {background-color : white;}"); _drawLayout.setContentsMargins(0, 0, 0, 0); _drawLayout.setSpacing(0); _drawLayout.addWidget(&_legendAxisX, 0, 1); _drawLayout.addWidget(&_legendWindow, 1, 0); _drawLayout.addWidget(&_glWindow, 1, 1); _drawWindow.setLayout(&_drawLayout); _drawWindow.installEventFilter(this); connect(&_glWindow, &KsGLWidget::select, this, &KsTraceGraph::markEntry); connect(&_glWindow, &KsGLWidget::found, this, &KsTraceGraph::_setPointerInfo); connect(&_glWindow, &KsGLWidget::notFound, this, &KsTraceGraph::_resetPointer); connect(&_glWindow, &KsGLWidget::zoomIn, this, &KsTraceGraph::_zoomIn); connect(&_glWindow, &KsGLWidget::zoomOut, this, &KsTraceGraph::_zoomOut); connect(&_glWindow, &KsGLWidget::scrollLeft, this, &KsTraceGraph::_scrollLeft); connect(&_glWindow, &KsGLWidget::scrollRight, this, &KsTraceGraph::_scrollRight); connect(&_glWindow, &KsGLWidget::stopUpdating, this, &KsTraceGraph::_stopUpdating); connect(_glWindow.model(), &KsGraphModel::modelReset, this, &KsTraceGraph::_updateTimeLegends); _glWindow.setContextMenuPolicy(Qt::CustomContextMenu); connect(&_glWindow, &QWidget::customContextMenuRequested, this, &KsTraceGraph::_onCustomContextMenu); _scrollArea.setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); _scrollArea.setWidget(&_drawWindow); lamMakeNavButton(&_scrollLeftButton); connect(&_scrollLeftButton, &QPushButton::pressed, this, &KsTraceGraph::_scrollLeft); lamMakeNavButton(&_zoomInButton); connect(&_zoomInButton, &QPushButton::pressed, this, &KsTraceGraph::_zoomIn); lamMakeNavButton(&_zoomOutButton); connect(&_zoomOutButton, &QPushButton::pressed, this, &KsTraceGraph::_zoomOut); lamMakeNavButton(&_scrollRightButton); connect(&_scrollRightButton, &QPushButton::pressed, this, &KsTraceGraph::_scrollRight); _navigationBar.addSeparator(); lamMakeNavButton(&_quickZoomInButton); connect(&_quickZoomInButton, &QPushButton::pressed, this, &KsTraceGraph::_quickZoomIn); lamMakeNavButton(&_quickZoomOutButton); connect(&_quickZoomOutButton, &QPushButton::pressed, this, &KsTraceGraph::_quickZoomOut); _layout.addWidget(&_pointerBar); _layout.addWidget(&_navigationBar); _layout.addWidget(&_scrollArea); this->setLayout(&_layout); updateGeom(); } /** * @brief Load and show trace data. * * @param data: Input location for the KsDataStore object. * KsDataStore::loadDataFile() must be called first. */ void KsTraceGraph::loadData(KsDataStore *data) { _data = data; _glWindow.loadData(data); _updateGraphLegends(); updateGeom(); } /** Connect the KsGLWidget widget and the State machine of the Dual marker. */ void KsTraceGraph::setMarkerSM(KsDualMarkerSM *m) { _mState = m; _navigationBar.addSeparator(); _mState->placeInToolBar(&_navigationBar); _glWindow.setMarkerSM(m); } /** Reset (empty) the widget. */ void KsTraceGraph::reset() { /* Reset (empty) the OpenGL widget. */ _glWindow.reset(); _labelP2.setText(""); for (auto l1: {&_labelI1, &_labelI2, &_labelI3, &_labelI4, &_labelI5}) l1->setText(""); _selfUpdate(); for (auto l2: {&_labelXMin, &_labelXMid, &_labelXMax}) l2->setText(""); } void KsTraceGraph::_selfUpdate() { _updateGraphLegends(); _updateTimeLegends(); _markerReDraw(); _glWindow.model()->update(); updateGeom(); } void KsTraceGraph::_zoomIn() { _updateGraphs(GraphActions::ZoomIn); } void KsTraceGraph::_zoomOut() { _updateGraphs(GraphActions::ZoomOut); } void KsTraceGraph::_quickZoomIn() { /* Bin size will be 100 ns. */ _glWindow.model()->quickZoomIn(100); if (_mState->activeMarker()._isSet && _mState->activeMarker().isVisible()) { /* * Use the position of the active marker as * a focus point of the zoom. */ uint64_t ts = _mState->activeMarker()._ts; _glWindow.model()->jumpTo(ts); } } void KsTraceGraph::_quickZoomOut() { _glWindow.model()->quickZoomOut(); } void KsTraceGraph::_scrollLeft() { _updateGraphs(GraphActions::ScrollLeft); } void KsTraceGraph::_scrollRight() { _updateGraphs(GraphActions::ScrollRight); } void KsTraceGraph::_stopUpdating() { /* * The user is no longer pressing the action button. Reset the * "Key Pressed" flag. This will stop the ongoing user action. */ _keyPressed = false; } void KsTraceGraph::_resetPointer(uint64_t ts, int cpu, int pid) { uint64_t sec, usec; QString pointer; kshark_convert_nano(ts, &sec, &usec); pointer.sprintf("%lu.%06lu", sec, usec); _labelP2.setText(pointer); if (pid > 0 && cpu >= 0) { struct kshark_context *kshark_ctx(NULL); if (!kshark_instance(&kshark_ctx)) return; QString comm(tep_data_comm_from_pid(kshark_ctx->pevent, pid)); comm.append("-"); comm.append(QString("%1").arg(pid)); _labelI1.setText(comm); _labelI2.setText(QString("CPU %1").arg(cpu)); } else { _labelI1.setText(""); _labelI2.setText(""); } for (auto const &l: {&_labelI3, &_labelI4, &_labelI5}) { l->setText(""); } } void KsTraceGraph::_setPointerInfo(size_t i) { kshark_entry *e = _data->rows()[i]; QString event(kshark_get_event_name_easy(e)); QString lat(kshark_get_latency_easy(e)); QString info(kshark_get_info_easy(e)); QString comm(kshark_get_task_easy(e)); QString pointer, elidedText; int labelWidth, width; uint64_t sec, usec; kshark_convert_nano(e->ts, &sec, &usec); pointer.sprintf("%lu.%06lu", sec, usec); _labelP2.setText(pointer); comm.append("-"); comm.append(QString("%1").arg(kshark_get_pid_easy(e))); _labelI1.setText(comm); _labelI2.setText(QString("CPU %1").arg(e->cpu)); _labelI3.setText(lat); _labelI4.setText(event); _labelI5.setText(info); QCoreApplication::processEvents(); labelWidth = _pointerBar.geometry().right() - _labelI4.geometry().right(); if (labelWidth > STRING_WIDTH(info) + FONT_WIDTH * 5) return; /* * The Info string is too long and cannot be displayed on the toolbar. * Try to fit the text in the available space. */ QFontMetrics metrix(_labelI5.font()); width = labelWidth - FONT_WIDTH * 3; elidedText = metrix.elidedText(info, Qt::ElideRight, width); while(labelWidth < STRING_WIDTH(elidedText) + FONT_WIDTH * 5) { width -= FONT_WIDTH * 3; elidedText = metrix.elidedText(info, Qt::ElideRight, width); } _labelI5.setText(elidedText); _labelI5.setVisible(true); QCoreApplication::processEvents(); } /** * @brief Use the active marker to select particular entry. * * @param row: The index of the entry to be selected by the marker. */ void KsTraceGraph::markEntry(size_t row) { int graph, cpuGrId, taskGrId; _glWindow.findGraphIds(*_data->rows()[row], &cpuGrId, &taskGrId); /* * If a Task graph has been found, this Task graph will be * visible. If no Task graph has been found, make visible * the corresponding CPU graph. */ if (taskGrId >= 0) graph = taskGrId; else graph = cpuGrId; _scrollArea.ensureVisible(0, _legendAxisX.height() + _glWindow.vMargin() + KS_GRAPH_HEIGHT / 2 + graph*(KS_GRAPH_HEIGHT + _glWindow.vSpacing()), 50, KS_GRAPH_HEIGHT / 2 + _glWindow.vSpacing() / 2); _glWindow.model()->jumpTo(_data->rows()[row]->ts); _mState->activeMarker().set(*_data, _glWindow.model()->histo(), row, cpuGrId, taskGrId); _mState->updateMarkers(*_data, &_glWindow); } void KsTraceGraph::_markerReDraw() { int cpuGrId, taskGrId; size_t row; if (_mState->markerA()._isSet) { row = _mState->markerA()._pos; _glWindow.findGraphIds(*_data->rows()[row], &cpuGrId, &taskGrId); _mState->markerA().set(*_data, _glWindow.model()->histo(), row, cpuGrId, taskGrId); } if (_mState->markerB()._isSet) { row = _mState->markerB()._pos; _glWindow.findGraphIds(*_data->rows()[row], &cpuGrId, &taskGrId); _mState->markerB().set(*_data, _glWindow.model()->histo(), row, cpuGrId, taskGrId); } } /** * @brief Redreaw all CPU graphs. * * @param v: CPU ids to be plotted. */ void KsTraceGraph::cpuReDraw(QVector v) { _glWindow._cpuList = v; _selfUpdate(); } /** * @brief Redreaw all Task graphs. * * @param v: Process ids of the tasks to be plotted. */ void KsTraceGraph::taskReDraw(QVector v) { _glWindow._taskList = v; _selfUpdate(); } /** Add (and plot) a CPU graph to the existing list of CPU graphs. */ void KsTraceGraph::addCPUPlot(int cpu) { if (_glWindow._cpuList.contains(cpu)) return; _glWindow._cpuList.append(cpu); qSort(_glWindow._cpuList); _selfUpdate(); } /** Add (and plot) a Task graph to the existing list of Task graphs. */ void KsTraceGraph::addTaskPlot(int pid) { if (_glWindow._taskList.contains(pid)) return; _glWindow._taskList.append(pid); qSort(_glWindow._taskList); _selfUpdate(); } /** Remove a CPU graph from the existing list of CPU graphs. */ void KsTraceGraph::removeCPUPlot(int cpu) { if (!_glWindow._cpuList.contains(cpu)) return; _glWindow._cpuList.removeAll(cpu); _selfUpdate(); } /** Remove a Task graph from the existing list of Task graphs. */ void KsTraceGraph::removeTaskPlot(int pid) { if (!_glWindow._taskList.contains(pid)) return; _glWindow._taskList.removeAll(pid); _selfUpdate(); } /** Update the content of all graphs. */ void KsTraceGraph::update(KsDataStore *data) { _glWindow.model()->update(data); _selfUpdate(); } /** Update the geometry of the widget. */ void KsTraceGraph::updateGeom() { int saWidth, saHeight, dwWidth, hMin; /* Set the size of the Scroll Area. */ saWidth = width() - _layout.contentsMargins().left() - _layout.contentsMargins().right(); saHeight = height() - _pointerBar.height() - _navigationBar.height() - _layout.spacing() * 2 - _layout.contentsMargins().top() - _layout.contentsMargins().bottom(); _scrollArea.resize(saWidth, saHeight); /* * Calculate the width of the Draw Window, taking into account the size * of the scroll bar. */ dwWidth = _scrollArea.width(); if (_glWindow.height() + _legendAxisX.height() > _scrollArea.height()) dwWidth -= qApp->style()->pixelMetric(QStyle::PM_ScrollBarExtent); /* * Set the height of the Draw window according to the number of * plotted graphs. */ _drawWindow.resize(dwWidth, _glWindow.height() + _legendAxisX.height()); /* Set the minimum height of the Graph widget. */ hMin = _drawWindow.height() + _pointerBar.height() + _navigationBar.height() + _layout.contentsMargins().top() + _layout.contentsMargins().bottom(); if (hMin > KS_GRAPH_HEIGHT * 8) hMin = KS_GRAPH_HEIGHT * 8; setMinimumHeight(hMin); /* * Now use the height of the Draw Window to fix the maximum height * of the Graph widget. */ setMaximumHeight(_drawWindow.height() + _pointerBar.height() + _navigationBar.height() + _layout.spacing() * 2 + _layout.contentsMargins().top() + _layout.contentsMargins().bottom() + 2); /* Just a little bit of extra space. This will * allow the scroll bar to disappear when the * widget is extended to maximum. */ _glWindow.update(); } void KsTraceGraph::_updateGraphLegends() { QString graphLegends, graphName; QVBoxLayout *layout; int width = 0; if (_legendWindow.layout()) { /* * Remove and delete the existing layout of the legend window. */ QLayoutItem *child; while ((child = _legendWindow.layout()->takeAt(0)) != 0) { delete child->widget(); delete child; } delete _legendWindow.layout(); } layout = new QVBoxLayout; layout->setContentsMargins(FONT_WIDTH, 0, 0, 0); layout->setSpacing(_glWindow.vSpacing()); layout->setAlignment(Qt::AlignTop); layout->addSpacing(_glWindow.vMargin()); auto lamMakeName = [&]() { QLabel *name = new QLabel(graphName); if (width < STRING_WIDTH(graphName)) width = STRING_WIDTH(graphName); name->setAlignment(Qt::AlignBottom); name->setStyleSheet("QLabel {background-color : white;}"); name->setFixedHeight(KS_GRAPH_HEIGHT); layout->addWidget(name); }; for (auto const &cpu: _glWindow._cpuList) { graphName = QString("CPU %1").arg(cpu); lamMakeName(); } for (auto const &pid: _glWindow._taskList) { graphName = QString(tep_data_comm_from_pid(_data->tep(), pid)); graphName.append(QString("-%1").arg(pid)); lamMakeName(); } _legendWindow.setLayout(layout); _legendWindow.setMaximumWidth(width + FONT_WIDTH); } void KsTraceGraph::_updateTimeLegends() { uint64_t sec, usec, tsMid; QString tMin, tMid, tMax; kshark_convert_nano(_glWindow.model()->histo()->min, &sec, &usec); tMin.sprintf("%lu.%06lu", sec, usec); _labelXMin.setText(tMin); tsMid = (_glWindow.model()->histo()->min + _glWindow.model()->histo()->max) / 2; kshark_convert_nano(tsMid, &sec, &usec); tMid.sprintf("%lu.%06lu", sec, usec); _labelXMid.setText(tMid); kshark_convert_nano(_glWindow.model()->histo()->max, &sec, &usec); tMax.sprintf("%lu.%06lu", sec, usec); _labelXMax.setText(tMax); } /** * Reimplemented event handler used to update the geometry of the widget on * resize events. */ void KsTraceGraph::resizeEvent(QResizeEvent* event) { updateGeom(); } /** * Reimplemented event handler (overriding a virtual function from QObject) * used to detect the position of the mouse with respect to the Draw window and * according to this position to grab / release the focus of the keyboard. The * function has nothing to do with the filtering of the trace events. */ bool KsTraceGraph::eventFilter(QObject* obj, QEvent* evt) { if (obj == &_drawWindow && evt->type() == QEvent::Enter) _glWindow.setFocus(); if (obj == &_drawWindow && evt->type() == QEvent::Leave) _glWindow.clearFocus(); return QWidget::eventFilter(obj, evt); } void KsTraceGraph::_updateGraphs(GraphActions action) { double k; int bin; /* * Set the "Key Pressed" flag. The flag will stay set as long as the user * keeps the corresponding action button pressed. */ _keyPressed = true; /* Initialize the zooming factor with a small value. */ k = .01; while (_keyPressed) { switch (action) { case GraphActions::ZoomIn: if (_mState->activeMarker()._isSet && _mState->activeMarker().isVisible()) { /* * Use the position of the active marker as * a focus point of the zoom. */ bin = _mState->activeMarker()._bin; _glWindow.model()->zoomIn(k, bin); } else { /* * The default focus point is the center of the * range interval of the model. */ _glWindow.model()->zoomIn(k); } break; case GraphActions::ZoomOut: if (_mState->activeMarker()._isSet && _mState->activeMarker().isVisible()) { /* * Use the position of the active marker as * a focus point of the zoom. */ bin = _mState->activeMarker()._bin; _glWindow.model()->zoomOut(k, bin); } else { /* * The default focus point is the center of the * range interval of the model. */ _glWindow.model()->zoomOut(k); } break; case GraphActions::ScrollLeft: _glWindow.model()->shiftBackward(10); break; case GraphActions::ScrollRight: _glWindow.model()->shiftForward(10); break; } /* * As long as the action button is pressed, the zooming factor * will grow smoothly until it reaches a maximum value. This * will have a visible effect of an accelerating zoom. */ if (k < .25) k *= 1.02; _mState->updateMarkers(*_data, &_glWindow); _updateTimeLegends(); QCoreApplication::processEvents(); } } void KsTraceGraph::_onCustomContextMenu(const QPoint &point) { KsQuickMarkerMenu *menu(nullptr); int cpu, pid; size_t row; bool found; found = _glWindow.find(point, 20, true, &row); if (found) { /* KernelShark entry has been found under the cursor. */ KsQuickContextMenu *entryMenu; menu = entryMenu = new KsQuickContextMenu(_data, row, _mState, this); connect(entryMenu, &KsQuickContextMenu::addTaskPlot, this, &KsTraceGraph::addTaskPlot); connect(entryMenu, &KsQuickContextMenu::addCPUPlot, this, &KsTraceGraph::addCPUPlot); connect(entryMenu, &KsQuickContextMenu::removeTaskPlot, this, &KsTraceGraph::removeTaskPlot); connect(entryMenu, &KsQuickContextMenu::removeCPUPlot, this, &KsTraceGraph::removeCPUPlot); } else { cpu = _glWindow.getPlotCPU(point); if (cpu >= 0) { /* * This is a CPU plot, but we do not have an entry * under the cursor. */ KsRmCPUPlotMenu *rmMenu; menu = rmMenu = new KsRmCPUPlotMenu(_mState, cpu, this); auto lamRmPlot = [&cpu, this] () { removeCPUPlot(cpu); }; connect(rmMenu, &KsRmPlotContextMenu::removePlot, lamRmPlot); } pid = _glWindow.getPlotPid(point); if (pid >= 0) { /* * This is a Task plot, but we do not have an entry * under the cursor. */ KsRmTaskPlotMenu *rmMenu; menu = rmMenu = new KsRmTaskPlotMenu(_mState, pid, this); auto lamRmPlot = [&pid, this] () { removeTaskPlot(pid); }; connect(rmMenu, &KsRmPlotContextMenu::removePlot, lamRmPlot); } } if (menu) { connect(menu, &KsQuickMarkerMenu::deselect, this, &KsTraceGraph::deselect); /* * Note that this slot was connected to the * customContextMenuRequested signal of the OpenGL widget. * Because of this the coordinates of the point are given with * respect to the frame of this widget. */ QPoint global = _glWindow.mapToGlobal(point); global.ry() -= menu->sizeHint().height() / 2; /* * Shift the menu so that it is not positioned under the mouse. * This will prevent from an accidental selection of the menu * item under the mouse. */ global.rx() += FONT_WIDTH; menu->exec(global); } } trace-cmd-2.8.3/kernel-shark/src/KsTraceGraph.hpp000066400000000000000000000054171351617527000216050ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsTraceGraph.hpp * @brief KernelShark Trace Graph widget. */ #ifndef _KS_TRACEGRAPH_H #define _KS_TRACEGRAPH_H // KernelShark #include "KsGLWidget.hpp" /** * Scroll Area class, needed in order to reimplemented the handler for mouse * wheel events. */ class KsGraphScrollArea : public QScrollArea { public: /** Create a default Scroll Area. */ explicit KsGraphScrollArea(QWidget *parent = nullptr) : QScrollArea(parent) {} /** * Reimplemented handler for mouse wheel events. All mouse wheel * events will be ignored. */ void wheelEvent(QWheelEvent *evt) {evt->ignore();} }; /** * The KsTraceViewer class provides a widget for interactive visualization of * trace data shown as time-series. */ class KsTraceGraph : public QWidget { Q_OBJECT public: explicit KsTraceGraph(QWidget *parent = nullptr); void loadData(KsDataStore *data); void setMarkerSM(KsDualMarkerSM *m); void reset(); /** Get the KsGLWidget object. */ KsGLWidget *glPtr() {return &_glWindow;} void markEntry(size_t); void cpuReDraw(QVector); void taskReDraw(QVector); void addCPUPlot(int); void addTaskPlot(int); void removeCPUPlot(int); void removeTaskPlot(int); void update(KsDataStore *data); void updateGeom(); void resizeEvent(QResizeEvent* event) override; bool eventFilter(QObject* obj, QEvent* evt) override; signals: /** * This signal is emitted in the case of a right mouse button click or * in the case of a double click over an empty area (no visible * KernelShark entries). */ void deselect(); private: void _zoomIn(); void _zoomOut(); void _quickZoomIn(); void _quickZoomOut(); void _scrollLeft(); void _scrollRight(); void _stopUpdating(); void _resetPointer(uint64_t ts, int cpu, int pid); void _setPointerInfo(size_t); void _updateTimeLegends(); void _updateGraphLegends(); void _selfUpdate(); void _markerReDraw(); enum class GraphActions { ZoomIn, ZoomOut, ScrollLeft, ScrollRight }; void _updateGraphs(GraphActions action); void _onCustomContextMenu(const QPoint &point); QToolBar _pointerBar, _navigationBar; QPushButton _zoomInButton, _quickZoomInButton; QPushButton _zoomOutButton, _quickZoomOutButton; QPushButton _scrollLeftButton, _scrollRightButton; QLabel _labelP1, _labelP2, // Pointer _labelI1, _labelI2, _labelI3, _labelI4, _labelI5; // Proc. info KsGraphScrollArea _scrollArea; QWidget _drawWindow, _legendWindow, _legendAxisX; QLabel _labelXMin, _labelXMid, _labelXMax; KsGLWidget _glWindow; QGridLayout _drawLayout; QVBoxLayout _layout; KsDualMarkerSM *_mState; KsDataStore *_data; bool _keyPressed; }; #endif // _KS_TRACEGRAPH_H trace-cmd-2.8.3/kernel-shark/src/KsTraceViewer.cpp000066400000000000000000000453761351617527000220100ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsTraceViewer.cpp * @brief KernelShark Trace Viewer widget. */ // C++11 #include #include // KernelShark #include "KsQuickContextMenu.hpp" #include "KsTraceViewer.hpp" #include "KsWidgetsLib.hpp" /** * Reimplemented handler for mouse press events. Right mouse click events will * be ignored. This is done because we want the Right click is being used to * open a Context menu. */ void KsTableView::mousePressEvent(QMouseEvent *e) { if(e->button() == Qt::RightButton) return; QTableView::mousePressEvent(e); } /** * Reimplemented the handler for Auto-scrolling. With this we disable * the Horizontal Auto-scrolling. */ void KsTableView::scrollTo(const QModelIndex &index, ScrollHint hint) { int bottomMargin(2); if (hint == QAbstractItemView::EnsureVisible && index.row() > indexAt(rect().topLeft()).row() && index.row() < indexAt(rect().bottomLeft()).row() - bottomMargin) return; QTableView::scrollTo(index, hint); } /** Create a default (empty) Trace viewer widget. */ KsTraceViewer::KsTraceViewer(QWidget *parent) : QWidget(parent), _view(this), _model(this), _proxyModel(this), _tableHeader(_model.header()), _toolbar(this), _labelSearch("Search: Column", this), _labelGrFollows("Graph follows ", this), _searchFSM(this), _graphFollowsCheckBox(this), _graphFollows(true), _mState(nullptr), _data(nullptr) { this->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Maximum); /* Make a search toolbar. */ _toolbar.setOrientation(Qt::Horizontal); _toolbar.setMaximumHeight(FONT_HEIGHT * 1.75); /* On the toolbar make two Combo boxes for the search settings. */ _toolbar.addWidget(&_labelSearch); _searchFSM._columnComboBox.addItems(_tableHeader); /* * Using the old Signal-Slot syntax because * QComboBox::currentIndexChanged has overloads. */ connect(&_searchFSM._columnComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(_searchEdit(int))); /* * Using the old Signal-Slot syntax because * QComboBox::currentIndexChanged has overloads. */ connect(&_searchFSM._selectComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(_searchEdit(int))); /* On the toolbar, make a Line edit field for search. */ _searchFSM._searchLineEdit.setMaximumWidth(FONT_WIDTH * 20); connect(&_searchFSM._searchLineEdit, &QLineEdit::returnPressed, this, &KsTraceViewer::_search); connect(&_searchFSM._searchLineEdit, &QLineEdit::textEdited, this, &KsTraceViewer::_searchEditText); /* On the toolbar, add Prev & Next buttons. */ connect(&_searchFSM._nextButton, &QPushButton::pressed, this, &KsTraceViewer::_next); connect(&_searchFSM._prevButton, &QPushButton::pressed, this, &KsTraceViewer::_prev); connect(&_searchFSM._searchStopButton, &QPushButton::pressed, this, &KsTraceViewer::_searchStop); connect(&_searchFSM._searchRestartButton, &QPushButton::pressed, this, &KsTraceViewer::_searchContinue); _searchFSM.placeInToolBar(&_toolbar); /* * On the toolbar, make a Check box for connecting the search pannel * to the Graph widget. */ _toolbar.addWidget(&_graphFollowsCheckBox); _toolbar.addWidget(&_labelGrFollows); _graphFollowsCheckBox.setCheckState(Qt::Checked); connect(&_graphFollowsCheckBox, &QCheckBox::stateChanged, this, &KsTraceViewer::_graphFollowsChanged); /* Initialize the trace viewer. */ _view.horizontalHeader()->setDefaultAlignment(Qt::AlignLeft); _view.verticalHeader()->setVisible(false); _view.setEditTriggers(QAbstractItemView::NoEditTriggers); _view.setSelectionBehavior(QAbstractItemView::SelectRows); _view.setSelectionMode(QAbstractItemView::SingleSelection); _view.verticalHeader()->setDefaultSectionSize(FONT_HEIGHT * 1.25); _proxyModel.setSource(&_model); _view.setModel(&_proxyModel); connect(&_proxyModel, &QAbstractItemModel::modelReset, this, &KsTraceViewer::_searchReset); _view.setContextMenuPolicy(Qt::CustomContextMenu); connect(&_view, &QWidget::customContextMenuRequested, this, &KsTraceViewer::_onCustomContextMenu); connect(&_view, &QTableView::clicked, this, &KsTraceViewer::_clicked); /* Set the layout. */ _layout.addWidget(&_toolbar); _layout.addWidget(&_view); this->setLayout(&_layout); } /** * @brief Load and show trace data. * * @param data: Input location for the KsDataStore object. * KsDataStore::loadDataFile() must be called first. */ void KsTraceViewer::loadData(KsDataStore *data) { _data = data; _model.reset(); _proxyModel.fill(data); _model.fill(data); this->_resizeToContents(); this->setMinimumHeight(SCREEN_HEIGHT / 5); } /** Connect the QTableView widget and the State machine of the Dual marker. */ void KsTraceViewer::setMarkerSM(KsDualMarkerSM *m) { QString styleSheetA, styleSheetB; _mState = m; _model.setColors(_mState->markerA()._color, _mState->markerB()._color); /* * Assign a property to State A of the Dual marker state machine. When * the marker is in State A the background color of the selected row * will be the same as the color of Marker A. */ styleSheetA = "selection-background-color : " + _mState->markerA()._color.name() + ";"; _mState->stateAPtr()->assignProperty(&_view, "styleSheet", styleSheetA); /* * Assign a property to State B. When the marker is in State B the * background color of the selected row will be the same as the color * of Marker B. */ styleSheetB = "selection-background-color : " + _mState->markerB()._color.name() + ";"; _mState->stateBPtr()->assignProperty(&_view, "styleSheet", styleSheetB); } /** Reset (empty) the table. */ void KsTraceViewer::reset() { this->setMinimumHeight(FONT_HEIGHT * 10); _model.reset(); _resizeToContents(); } void KsTraceViewer::_searchReset() { _searchFSM.handleInput(sm_input_t::Change); _proxyModel.searchReset(); } /** Get the index of the first (top) visible row. */ size_t KsTraceViewer::getTopRow() const { return _view.indexAt(_view.rect().topLeft()).row(); } /** Position given row at the top of the table. */ void KsTraceViewer::setTopRow(size_t r) { _view.scrollTo(_proxyModel.index(r, 0), QAbstractItemView::PositionAtTop); } /** Update the content of the table. */ void KsTraceViewer::update(KsDataStore *data) { /* The Proxy model has to be updated first! */ _proxyModel.fill(data); _model.update(data); _data = data; if (_mState->activeMarker()._isSet) showRow(_mState->activeMarker()._pos, true); } void KsTraceViewer::_onCustomContextMenu(const QPoint &point) { QModelIndex i = _view.indexAt(point); if (i.isValid()) { /* * Use the index of the proxy model to retrieve the value * of the row number in the source model. */ size_t row = _proxyModel.mapRowFromSource(i.row()); KsQuickContextMenu menu(_data, row, _mState, this); /* * Note that this slot was connected to the * customContextMenuRequested signal of the Table widget. * Because of this the coordinates of the point are given with * respect to the frame of this widget. */ QPoint global = _view.mapToGlobal(point); global.ry() -= menu.sizeHint().height() / 2; /* * Shift the menu so that it is not positioned under the mouse. * This will prevent from an accidental selection of the menu * item under the mouse. */ global.rx() += FONT_WIDTH; connect(&menu, &KsQuickContextMenu::addTaskPlot, this, &KsTraceViewer::addTaskPlot); connect(&menu, &KsQuickMarkerMenu::deselect, this, &KsTraceViewer::deselect); menu.exec(global); } } void KsTraceViewer::_searchEdit(int index) { _searchReset(); // The search has been modified. } void KsTraceViewer::_searchEditText(const QString &text) { _searchReset(); // The search has been modified. } void KsTraceViewer::_graphFollowsChanged(int state) { _graphFollows = (bool) state; if (_graphFollows && _searchDone()) emit select(*_it); // Send a signal to the Graph widget. } void KsTraceViewer::_search() { if (!_searchDone()) { /* * The search is not done. This means that the search settings * have been modified since the last time we searched. */ _matchList.clear(); _searchItems(); if (!_matchList.empty()) { showRow(*_it, true); if (_graphFollows) emit select(*_it); // Send a signal to the Graph widget. } } else { /* * If the search is done, pressing "Enter" is equivalent * to pressing "Next" button. */ this->_next(); } } void KsTraceViewer::_next() { if (!_searchDone()) { _search(); return; } if (!_matchList.empty()) { // Items have been found. int row = selectedRow(); /* * The iterator can only be at the selected row or if the * selected row is not a match at the first matching row after * the selected one. */ if (*_it == row) { ++_it; // Move the iterator. if (_it == _matchList.end()) { /* * This is the last item of the list. * Go back to the beginning. */ _it = _matchList.begin(); } } // Select the row of the item. showRow(*_it, true); if (_graphFollows) emit select(*_it); // Send a signal to the Graph widget. } _updateSearchCount(); } void KsTraceViewer::_prev() { if (!_searchDone()) { _search(); return; } if (!_matchList.empty()) { // Items have been found. if (_it == _matchList.begin()) { // This is the first item of the list. Go to the last item. _it = _matchList.end() - 1; } else { --_it; // Move the iterator. } // Select the row of the item. showRow(*_it, true); if (_graphFollows) emit select(*_it); // Send a signal to the Graph widget. } _updateSearchCount(); } void KsTraceViewer::_updateSearchCount() { int index, total; QString countText; if (_matchList.isEmpty()) return; index = _it - _matchList.begin(); total =_matchList.count(); countText = QString(" %1 / %2").arg(index + 1).arg(total); _searchFSM._searchCountLabel.setText(countText); } void KsTraceViewer::_searchStop() { _proxyModel._searchStop = true; _searchFSM.handleInput(sm_input_t::Stop); } void KsTraceViewer::_searchContinue() { _proxyModel._searchStop = false; _searchItems(); } void KsTraceViewer::_clicked(const QModelIndex& i) { /* * Use the index of the proxy model to retrieve the value * of the row number in the base model. */ size_t row = _proxyModel.mapRowFromSource(i.row()); if (_searchDone() && _matchList.count()) { _setSearchIterator(row); _updateSearchCount(); } if (_graphFollows) emit select(row); // Send a signal to the Graph widget. } /** Make a given row of the table visible. */ void KsTraceViewer::showRow(size_t r, bool mark) { /* * Use the index in the source model to retrieve the value of the row number * in the proxy model. */ QModelIndex index = _proxyModel.mapFromSource(_model.index(r, 0)); if (mark) { // The row will be selected (colored). /* Get the first and the last visible rows of the table. */ int visiTot = _view.indexAt(_view.rect().topLeft()).row(); int visiBottom = _view.indexAt(_view.rect().bottomLeft()).row() - 2; /* Scroll only if the row to be shown in not vizible. */ if (index.row() < visiTot || index.row() > visiBottom) _view.scrollTo(index, QAbstractItemView::PositionAtCenter); _view.selectRow(index.row()); } else { /* * Just make sure that the row is visible. It will show up at * the top of the visible part of the table. */ _view.scrollTo(index, QAbstractItemView::PositionAtTop); } } /** Deselects the selected items (row) if any. */ void KsTraceViewer::clearSelection() { _view.clearSelection(); } /** Switch the Dual marker. */ void KsTraceViewer::markSwitch() { int row; /* The state of the Dual marker has changed. Get the new active marker. */ DualMarkerState state = _mState->getState(); /* First deal with the passive marker. */ if (_mState->getMarker(!state)._isSet) { /* * The passive marker is set. Use the model to color the row of * the passive marker. */ _model.selectRow(!state, _mState->getMarker(!state)._pos); } else { /* * The passive marker is not set. * Make sure that the model colors nothing. */ _model.selectRow(!state, KS_NO_ROW_SELECTED); } /* * Now deal with the active marker. This has to be done after dealing * with the model, because changing the model clears the selection. */ if (_mState->getMarker(state)._isSet) { /* * The active marker is set. Use QTableView to select its row. * The index in the source model is used to retrieve the value * of the row number in the proxy model. */ size_t row =_mState->getMarker(state)._pos; QModelIndex index = _proxyModel.mapFromSource(_model.index(row, 0)); if (index.isValid()) { /* * The row of the active marker will be colored according to * the assigned property of the current state of the Dual * marker. Auto-scrolling is temporarily disabled because we * do not want to scroll to the position of the marker yet. */ _view.setAutoScroll(false); _view.selectRow(index.row()); _view.setAutoScroll(true); } else { _view.clearSelection(); } } else { _view.clearSelection(); } row = selectedRow(); if (row >= 0) { _setSearchIterator(row); _updateSearchCount(); } } /** * Reimplemented event handler used to update the geometry of the widget on * resize events. */ void KsTraceViewer::resizeEvent(QResizeEvent* event) { int nColumns = _tableHeader.count(); int tableSize(0), viewSize, freeSpace; _resizeToContents(); for (int c = 0; c < nColumns; ++c) { tableSize += _view.columnWidth(c); } viewSize = _view.width() - qApp->style()->pixelMetric(QStyle::PM_ScrollBarExtent); if ((freeSpace = viewSize - tableSize) > 0) { _view.setColumnWidth(nColumns - 1, _view.columnWidth(nColumns - 1) + freeSpace - 2); /* Just a little bit less space. * This will allow the scroll bar * to disappear when the widget * is extended to maximum. */ } } /** * Reimplemented event handler used to move the active marker. */ void KsTraceViewer::keyReleaseEvent(QKeyEvent *event) { if (event->key() == Qt::Key_Up || event->key() == Qt::Key_Down) { int row = selectedRow(); if (row >= 0) emit select(row); // Send a signal to the Graph widget. return; } QWidget::keyReleaseEvent(event); } void KsTraceViewer::_resizeToContents() { int rows, columnSize; _view.setVisible(false); _view.resizeColumnsToContents(); _view.setVisible(true); /* * Because of some unknown reason the first column doesn't get * resized properly by the code above. We will resize this * column by hand. */ rows = _model.rowCount({}); columnSize = STRING_WIDTH(QString("%1").arg(rows)) + FONT_WIDTH; _view.setColumnWidth(0, columnSize); } //! @cond Doxygen_Suppress #define KS_SEARCH_SHOW_PROGRESS_MIN 100000 //! @endcond size_t KsTraceViewer::_searchItems() { int column = _searchFSM._columnComboBox.currentIndex(); QString searchText = _searchFSM._searchLineEdit.text(); int count, dataRow; if (searchText.isEmpty()) { /* * No text is provided by the user. Most probably this * is an accidental key press. */ return 0; } if (_proxyModel.rowCount({}) < KS_SEARCH_SHOW_PROGRESS_MIN) { /* * This is a small data-set. Do a single-threaded search * without showing the progress. We will bypass the state * switching, hence the search condition has to be updated * by hand. */ _searchFSM.updateCondition(); _proxyModel.search(column, searchText, _searchFSM.condition(), &_matchList, nullptr, nullptr); } else { _searchFSM.handleInput(sm_input_t::Start); if (column == KsViewModel::TRACE_VIEW_COL_INFO || column == KsViewModel::TRACE_VIEW_COL_LAT) _proxyModel.search(&_searchFSM, &_matchList); else _searchItemsMapReduce(column, searchText, _searchFSM.condition()); } count = _matchList.count(); _searchFSM.handleInput(sm_input_t::Finish); if (count == 0) // No items have been found. Do nothing. return 0; dataRow = selectedRow(); if (dataRow >= 0) { _view.clearSelection(); _setSearchIterator(dataRow); showRow(*_it, true); if (_graphFollows) emit select(*_it); // Send a signal to the Graph widget. } else { /* Move the iterator to the beginning of the match list. */ _it = _matchList.begin(); } _updateSearchCount(); return count; } void KsTraceViewer::_setSearchIterator(int row) { _it = _matchList.begin(); if (_matchList.isEmpty()) return; /* * Move the iterator to the first element of the match list * after the selected one. */ while (*_it < row) { ++_it; // Move the iterator. if (_it == _matchList.end()) { /* * This is the last item of the list. Go back * to the beginning. */ _it = _matchList.begin(); break; } } } void KsTraceViewer::_searchItemsMapReduce(int column, const QString &searchText, search_condition_func cond) { int nThreads = std::thread::hardware_concurrency(); std::vector> ranges(nThreads); std::vector>> maps; int i(0), nRows(_proxyModel.rowCount({})); int delta(nRows / nThreads); auto lamSearchMap = [&] (const QPair &range, bool notify) { return _proxyModel.searchMap(column, searchText, cond, range.first, range.second, notify); }; auto lamSearchReduce = [&] (QList &resultList, const QList &mapList) { resultList << mapList; _searchFSM.incrementProgress(); }; for (auto &r: ranges) { r.first = (i++) * delta; r.second = r.first + delta - 1; } /* * If the range is not multiple of the number of threads, adjust * the last range interval. */ ranges.back().second = nRows - 1; maps.push_back(std::async(lamSearchMap, ranges[0], true)); for (int r = 1; r < nThreads; ++r) maps.push_back(std::async(lamSearchMap, ranges[r], false)); while (_proxyModel.searchProgress() < KS_PROGRESS_BAR_MAX - nThreads) { std::unique_lock lk(_proxyModel._mutex); _proxyModel._pbCond.wait(lk); _searchFSM.setProgress(_proxyModel.searchProgress()); QApplication::processEvents(); } for (auto &m: maps) lamSearchReduce(_matchList, m.get()); } /** * @brief Color (select) the given row in the table, by using the color of the * Passive marker. * * @param row: The row index. If the Passive marker is selected and the input * value is negative, the Passive marker will be deselected. */ void KsTraceViewer::passiveMarkerSelectRow(int row) { DualMarkerState state = _mState->getState(); _view.setVisible(false); _model.selectRow(!state, row); _view.setVisible(true); } /** * Get the currently selected row. If no row is selected the function * returns KS_NO_ROW_SELECTED (-1). */ int KsTraceViewer::selectedRow() { QItemSelectionModel *sm = _view.selectionModel(); int dataRow = KS_NO_ROW_SELECTED; if (sm->hasSelection()) { /* Only one row at the time can be selected. */ QModelIndex i = sm->selectedRows()[0]; dataRow = _proxyModel.mapRowFromSource(i.row()); } return dataRow; } trace-cmd-2.8.3/kernel-shark/src/KsTraceViewer.hpp000066400000000000000000000056321351617527000220040ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsTraceViewer.hpp * @brief KernelShark Trace Viewer widget. */ #ifndef _KS_TRACEVIEW_H #define _KS_TRACEVIEW_H // Qt #include // KernelShark #include "KsUtils.hpp" #include "KsModels.hpp" #include "KsSearchFSM.hpp" #include "KsDualMarker.hpp" /** * Table View class, needed in order to reimplemented the handler for mouse * press events. */ class KsTableView : public QTableView { Q_OBJECT public: /** Create KsTableView. */ explicit KsTableView(QWidget *parent = nullptr) : QTableView(parent) {}; void mousePressEvent(QMouseEvent *event) override; void scrollTo(const QModelIndex &index, ScrollHint hint) override; }; /** * The KsTraceViewer class provides a widget for browsing in the trace data * shown in a text form. */ class KsTraceViewer : public QWidget { Q_OBJECT public: explicit KsTraceViewer(QWidget *parent = nullptr); void loadData(KsDataStore *data); void setMarkerSM(KsDualMarkerSM *m); void reset(); size_t getTopRow() const; void setTopRow(size_t r); void resizeEvent(QResizeEvent* event) override; void keyReleaseEvent(QKeyEvent *event); void markSwitch(); void showRow(size_t r, bool mark); void clearSelection(); void passiveMarkerSelectRow(int row); int selectedRow(); void update(KsDataStore *data); signals: /** Signal emitted when new row is selected. */ void select(size_t); /** * This signal is used to re-emitted the addTaskPlot signal of the * KsQuickContextMenu. */ void addTaskPlot(int pid); /** * This signal is used to re-emitted the deselect signal of the * KsQuickMarkerMenu. */ void deselect(); private: QVBoxLayout _layout; KsTableView _view; KsViewModel _model; KsFilterProxyModel _proxyModel; QStringList _tableHeader; QToolBar _toolbar; QLabel _labelSearch, _labelGrFollows; KsSearchFSM _searchFSM; QCheckBox _graphFollowsCheckBox; bool _graphFollows; QList _matchList; QList::iterator _it; KsDualMarkerSM *_mState; KsDataStore *_data; enum Condition { Containes = 0, Match = 1, NotHave = 2 }; void _searchReset(); void _resizeToContents(); size_t _searchItems(); void _searchItemsMapReduce(int column, const QString &searchText, search_condition_func cond); void _searchEditText(const QString &); void _graphFollowsChanged(int); void _lockSearchPanel(bool lock); void _search(); void _next(); void _prev(); void _updateSearchCount(); void _searchStop(); void _searchContinue(); void _clicked(const QModelIndex& i); void _onCustomContextMenu(const QPoint &); void _setSearchIterator(int row); bool _searchDone() { return _searchFSM.getState() == search_state_t::Done_s || _searchFSM.getState() == search_state_t::Paused_s; } private slots: void _searchEdit(int); }; #endif // _KS_TRACEVIEW_H trace-cmd-2.8.3/kernel-shark/src/KsUtils.cpp000066400000000000000000000454361351617527000206650ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsUtils.cpp * @brief KernelShark Utils. */ // KernelShark #include "KsUtils.hpp" #include "KsWidgetsLib.hpp" namespace KsUtils { /** @brief Get a sorted vector of Task's Pids. */ QVector getPidList() { kshark_context *kshark_ctx(nullptr); int nTasks, *tempPids; QVector pids; if (!kshark_instance(&kshark_ctx)) return pids; nTasks = kshark_get_task_pids(kshark_ctx, &tempPids); for (int r = 0; r < nTasks; ++r) { pids.append(tempPids[r]); } free(tempPids); qSort(pids); return pids; } /** @brief Get a sorted vector of Id values of a filter. */ QVector getFilterIds(tracecmd_filter_id *filter) { kshark_context *kshark_ctx(nullptr); int *cpuFilter, n; QVector v; if (!kshark_instance(&kshark_ctx)) return v; cpuFilter = tracecmd_filter_ids(filter); n = filter->count; for (int i = 0; i < n; ++i) v.append(cpuFilter[i]); qSort(v); free(cpuFilter); return v; } /** * Set the bit of the filter mask of the kshark session context responsible * for the visibility of the events in the Table View. */ void listFilterSync(bool state) { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; if (state) { kshark_ctx->filter_mask |= KS_TEXT_VIEW_FILTER_MASK; } else { kshark_ctx->filter_mask &= ~KS_TEXT_VIEW_FILTER_MASK; } } /** * Set the bit of the filter mask of the kshark session context responsible * for the visibility of the events in the Graph View. */ void graphFilterSync(bool state) { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; if (state) { kshark_ctx->filter_mask |= KS_GRAPH_VIEW_FILTER_MASK; kshark_ctx->filter_mask |= KS_EVENT_VIEW_FILTER_MASK; } else { kshark_ctx->filter_mask &= ~KS_GRAPH_VIEW_FILTER_MASK; kshark_ctx->filter_mask &= ~KS_EVENT_VIEW_FILTER_MASK; } } /** * @brief Add a checkbox to a menu. * * @param menu: Input location for the menu object, to which the checkbox will be added. * @param name: The name of the checkbox. * * @returns The checkbox object; */ QCheckBox *addCheckBoxToMenu(QMenu *menu, QString name) { QWidget *containerWidget = new QWidget(menu); containerWidget->setLayout(new QHBoxLayout()); containerWidget->layout()->setContentsMargins(FONT_WIDTH, FONT_HEIGHT/5, FONT_WIDTH, FONT_HEIGHT/5); QCheckBox *checkBox = new QCheckBox(name, menu); containerWidget->layout()->addWidget(checkBox); QWidgetAction *action = new QWidgetAction(menu); action->setDefaultWidget(containerWidget); menu->addAction(action); return checkBox; } /** * @brief Simple CPU matching function to be user for data collections. * * @param kshark_ctx: Input location for the session context pointer. * @param e: kshark_entry to be checked. * @param cpu: Matching condition value. * * @returns True if the CPU of the entry matches the value of "cpu" and * the entry is visibility in Graph. Otherwise false. */ bool matchCPUVisible(struct kshark_context *kshark_ctx, struct kshark_entry *e, int cpu) { return (e->cpu == cpu && (e->visible & KS_GRAPH_VIEW_FILTER_MASK)); } /** * @brief Check if the application runs from its installation location. */ bool isInstalled() { QString appPath = QCoreApplication::applicationDirPath(); QString installPath(_INSTALL_PREFIX); installPath += "/bin"; installPath = QDir::cleanPath(installPath); return appPath == installPath; } static QString getFileDialog(QWidget *parent, const QString &windowName, const QString &filter, QString &lastFilePath, bool forSave) { QString fileName; if (lastFilePath.isEmpty()) { lastFilePath = isInstalled() ? QDir::homePath() : QDir::currentPath(); } if (forSave) { fileName = QFileDialog::getSaveFileName(parent, windowName, lastFilePath, filter); } else { fileName = QFileDialog::getOpenFileName(parent, windowName, lastFilePath, filter); } if (!fileName.isEmpty()) lastFilePath = QFileInfo(fileName).path(); return fileName; } static QStringList getFilesDialog(QWidget *parent, const QString &windowName, const QString &filter, QString &lastFilePath) { QStringList fileNames; if (lastFilePath.isEmpty()) { lastFilePath = isInstalled() ? QDir::homePath() : QDir::currentPath(); } fileNames = QFileDialog::getOpenFileNames(parent, windowName, lastFilePath, filter); if (!fileNames.isEmpty()) lastFilePath = QFileInfo(fileNames[0]).path(); return fileNames; } /** * @brief Open a standard Qt getFileName dialog and return the name of the * selected file. Only one file can be selected. */ QString getFile(QWidget *parent, const QString &windowName, const QString &filter, QString &lastFilePath) { return getFileDialog(parent, windowName, filter, lastFilePath, false); } /** * @brief Open a standard Qt getFileName dialog and return the names of the * selected files. Multiple files can be selected. */ QStringList getFiles(QWidget *parent, const QString &windowName, const QString &filter, QString &lastFilePath) { return getFilesDialog(parent, windowName, filter, lastFilePath); } /** * @brief Open a standard Qt getFileName dialog and return the name of the * selected file. Only one file can be selected. */ QString getSaveFile(QWidget *parent, const QString &windowName, const QString &filter, const QString &extension, QString &lastFilePath) { QString fileName = getFileDialog(parent, windowName, filter, lastFilePath, true); if (!fileName.isEmpty() && !fileName.endsWith(extension)) { fileName += extension; if (QFileInfo(fileName).exists()) { if (!KsWidgetsLib::fileExistsDialog(fileName)) fileName.clear(); } } return fileName; } }; // KsUtils /** A stream operator for converting QColor into KsPlot::Color. */ KsPlot::Color& operator <<(KsPlot::Color &thisColor, const QColor &c) { thisColor.set(c.red(), c.green(), c.blue()); return thisColor; } /** Create a default (empty) KsDataStore. */ KsDataStore::KsDataStore(QWidget *parent) : QObject(parent), _tep(nullptr), _rows(nullptr), _dataSize(0) {} /** Destroy the KsDataStore object. */ KsDataStore::~KsDataStore() {} /** Load trace data for file. */ void KsDataStore::loadDataFile(const QString &file) { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; clear(); if (!kshark_open(kshark_ctx, file.toStdString().c_str())) { qCritical() << "ERROR Loading file " << file; return; } _tep = kshark_ctx->pevent; if (kshark_ctx->event_handlers == nullptr) kshark_handle_plugins(kshark_ctx, KSHARK_PLUGIN_INIT); else kshark_handle_plugins(kshark_ctx, KSHARK_PLUGIN_UPDATE); _dataSize = kshark_load_data_entries(kshark_ctx, &_rows); } void KsDataStore::_freeData() { if (_dataSize > 0) { for (ssize_t r = 0; r < _dataSize; ++r) free(_rows[r]); free(_rows); } _rows = nullptr; _dataSize = 0; } /** Reload the trace data. */ void KsDataStore::reload() { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; _freeData(); _dataSize = kshark_load_data_entries(kshark_ctx, &_rows); _tep = kshark_ctx->pevent; emit updateWidgets(this); } /** Free the loaded trace data and close the file. */ void KsDataStore::clear() { kshark_context *kshark_ctx(nullptr); _freeData(); _tep = nullptr; if (kshark_instance(&kshark_ctx) && kshark_ctx->handle) kshark_close(kshark_ctx); } /** Update the visibility of the entries (filter). */ void KsDataStore::update() { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; _unregisterCPUCollections(); if (kshark_filter_is_set(kshark_ctx)) { kshark_filter_entries(kshark_ctx, _rows, _dataSize); emit updateWidgets(this); } registerCPUCollections(); } /** Register a collection of visible entries for each CPU. */ void KsDataStore::registerCPUCollections() { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx) || !kshark_filter_is_set(kshark_ctx)) return; int nCPUs = tep_get_cpus(_tep); for (int cpu = 0; cpu < nCPUs; ++cpu) { kshark_register_data_collection(kshark_ctx, _rows, _dataSize, KsUtils::matchCPUVisible, cpu, 0); } } void KsDataStore::_unregisterCPUCollections() { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; int nCPUs = tep_get_cpus(_tep); for (int cpu = 0; cpu < nCPUs; ++cpu) { kshark_unregister_data_collection(&kshark_ctx->collections, KsUtils::matchCPUVisible, cpu); } } void KsDataStore::_applyIdFilter(int filterId, QVector vec) { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; switch (filterId) { case KS_SHOW_EVENT_FILTER: case KS_HIDE_EVENT_FILTER: kshark_filter_clear(kshark_ctx, KS_SHOW_EVENT_FILTER); kshark_filter_clear(kshark_ctx, KS_HIDE_EVENT_FILTER); break; case KS_SHOW_TASK_FILTER: case KS_HIDE_TASK_FILTER: kshark_filter_clear(kshark_ctx, KS_SHOW_TASK_FILTER); kshark_filter_clear(kshark_ctx, KS_HIDE_TASK_FILTER); break; case KS_SHOW_CPU_FILTER: case KS_HIDE_CPU_FILTER: kshark_filter_clear(kshark_ctx, KS_SHOW_CPU_FILTER); kshark_filter_clear(kshark_ctx, KS_HIDE_CPU_FILTER); break; default: return; } for (auto &&val: vec) kshark_filter_add_id(kshark_ctx, filterId, val); if (!_tep) return; _unregisterCPUCollections(); /* * If the advanced event filter is set, the data has to be reloaded, * because the advanced filter uses tep_records. */ if (kshark_ctx->advanced_event_filter->filters) reload(); else kshark_filter_entries(kshark_ctx, _rows, _dataSize); registerCPUCollections(); emit updateWidgets(this); } /** Apply Show Task filter. */ void KsDataStore::applyPosTaskFilter(QVector vec) { _applyIdFilter(KS_SHOW_TASK_FILTER, vec); } /** Apply Hide Task filter. */ void KsDataStore::applyNegTaskFilter(QVector vec) { _applyIdFilter(KS_HIDE_TASK_FILTER, vec); } /** Apply Show Event filter. */ void KsDataStore::applyPosEventFilter(QVector vec) { _applyIdFilter(KS_SHOW_EVENT_FILTER, vec); } /** Apply Hide Event filter. */ void KsDataStore::applyNegEventFilter(QVector vec) { _applyIdFilter(KS_HIDE_EVENT_FILTER, vec); } /** Apply Show CPU filter. */ void KsDataStore::applyPosCPUFilter(QVector vec) { _applyIdFilter(KS_SHOW_CPU_FILTER, vec); } /** Apply Hide CPU filter. */ void KsDataStore::applyNegCPUFilter(QVector vec) { _applyIdFilter(KS_HIDE_CPU_FILTER, vec); } /** Disable all filters. */ void KsDataStore::clearAllFilters() { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx) || !_tep) return; _unregisterCPUCollections(); kshark_filter_clear(kshark_ctx, KS_SHOW_TASK_FILTER); kshark_filter_clear(kshark_ctx, KS_HIDE_TASK_FILTER); kshark_filter_clear(kshark_ctx, KS_SHOW_EVENT_FILTER); kshark_filter_clear(kshark_ctx, KS_HIDE_EVENT_FILTER); kshark_filter_clear(kshark_ctx, KS_SHOW_CPU_FILTER); kshark_filter_clear(kshark_ctx, KS_HIDE_CPU_FILTER); tep_filter_reset(kshark_ctx->advanced_event_filter); kshark_clear_all_filters(kshark_ctx, _rows, _dataSize); emit updateWidgets(this); } /** * @brief Create Plugin Manager. Use list of plugins declared in the * CMake-generated header file. */ KsPluginManager::KsPluginManager(QWidget *parent) : QObject(parent) { kshark_context *kshark_ctx(nullptr); _parsePluginList(); if (!kshark_instance(&kshark_ctx)) return; registerFromList(kshark_ctx); } /** Parse the plugin list declared in the CMake-generated header file. */ void KsPluginManager::_parsePluginList() { _ksPluginList = KsUtils::getPluginList(); int nPlugins = _ksPluginList.count(); _registeredKsPlugins.resize(nPlugins); for (int i = 0; i < nPlugins; ++i) { if (_ksPluginList[i].contains(" default", Qt::CaseInsensitive)) { _ksPluginList[i].remove(" default", Qt::CaseInsensitive); _registeredKsPlugins[i] = true; } else { _registeredKsPlugins[i] = false; } } } /** * Register the plugins by using the information in "_ksPluginList" and * "_registeredKsPlugins". */ void KsPluginManager::registerFromList(kshark_context *kshark_ctx) { auto lamRegBuiltIn = [&kshark_ctx, this](const QString &plugin) { char *lib; int n; lib = _pluginLibFromName(plugin, n); if (n <= 0) return; kshark_register_plugin(kshark_ctx, lib); free(lib); }; auto lamRegUser = [&kshark_ctx](const QString &plugin) { std::string lib = plugin.toStdString(); kshark_register_plugin(kshark_ctx, lib.c_str()); }; _forEachInList(_ksPluginList, _registeredKsPlugins, lamRegBuiltIn); _forEachInList(_userPluginList, _registeredUserPlugins, lamRegUser); } /** * Unegister the plugins by using the information in "_ksPluginList" and * "_registeredKsPlugins". */ void KsPluginManager::unregisterFromList(kshark_context *kshark_ctx) { auto lamUregBuiltIn = [&kshark_ctx, this](const QString &plugin) { char *lib; int n; lib = _pluginLibFromName(plugin, n); if (n <= 0) return; kshark_unregister_plugin(kshark_ctx, lib); free(lib); }; auto lamUregUser = [&kshark_ctx](const QString &plugin) { std::string lib = plugin.toStdString(); kshark_unregister_plugin(kshark_ctx, lib.c_str()); }; _forEachInList(_ksPluginList, _registeredKsPlugins, lamUregBuiltIn); _forEachInList(_userPluginList, _registeredUserPlugins, lamUregUser); } char *KsPluginManager::_pluginLibFromName(const QString &plugin, int &n) { QString appPath = QCoreApplication::applicationDirPath(); QString libPath = appPath + "/../../kernel-shark/lib"; std::string pluginStr = plugin.toStdString(); char *lib; libPath = QDir::cleanPath(libPath); if (!KsUtils::isInstalled() && QDir(libPath).exists()) { std::string pathStr = libPath.toStdString(); n = asprintf(&lib, "%s/plugin-%s.so", pathStr.c_str(), pluginStr.c_str()); } else { n = asprintf(&lib, "%s/plugin-%s.so", KS_PLUGIN_INSTALL_PREFIX, pluginStr.c_str()); } return lib; } /** * @brief Register a Plugin. * * @param plugin: provide here the name of the plugin (as in the CMake-generated * header file) of a name of the plugin's library file (.so). */ void KsPluginManager::registerPlugin(const QString &plugin) { kshark_context *kshark_ctx(nullptr); char *lib; int n; if (!kshark_instance(&kshark_ctx)) return; for (int i = 0; i < _ksPluginList.count(); ++i) { if (_ksPluginList[i] == plugin) { /* * The argument is the name of the plugin. From the * name get the library .so file. */ lib = _pluginLibFromName(plugin, n); if (n > 0) { kshark_register_plugin(kshark_ctx, lib); _registeredKsPlugins[i] = true; free(lib); } return; } else if (plugin.contains("/lib/plugin-" + _ksPluginList[i], Qt::CaseInsensitive)) { /* * The argument is the name of the library .so file. */ n = asprintf(&lib, "%s", plugin.toStdString().c_str()); if (n > 0) { kshark_register_plugin(kshark_ctx, lib); _registeredKsPlugins[i] = true; free(lib); } return; } } /* No plugin with this name in the list. Try to add it anyway. */ if (plugin.endsWith(".so") && QFileInfo::exists(plugin)) { kshark_register_plugin(kshark_ctx, plugin.toStdString().c_str()); _userPluginList.append(plugin); _registeredUserPlugins.append(true); } else { qCritical() << "ERROR: " << plugin << "cannot be registered!"; } } /** @brief Unregister a Built in KernelShark plugin. *
    * WARNING: Do not use this function to unregister User plugins. * Instead use directly kshark_unregister_plugin(). * * @param plugin: provide here the name of the plugin (as in the CMake-generated * header file) or a name of the plugin's library file (.so). * */ void KsPluginManager::unregisterPlugin(const QString &plugin) { kshark_context *kshark_ctx(nullptr); char *lib; int n; if (!kshark_instance(&kshark_ctx)) return; for (int i = 0; i < _ksPluginList.count(); ++i) { if (_ksPluginList[i] == plugin) { /* * The argument is the name of the plugin. From the * name get the library .so file. */ lib = _pluginLibFromName(plugin, n); if (n > 0) { kshark_unregister_plugin(kshark_ctx, lib); _registeredKsPlugins[i] = false; free(lib); } return; } else if (plugin.contains("/lib/plugin-" + _ksPluginList[i], Qt::CaseInsensitive)) { /* * The argument is the name of the library .so file. */ n = asprintf(&lib, "%s", plugin.toStdString().c_str()); if (n > 0) { kshark_unregister_plugin(kshark_ctx, lib); _registeredKsPlugins[i] = false; free(lib); } return; } } } /** @brief Add to the list and initialize user-provided plugins. All other * previously loaded plugins will be reinitialized and the data will be * reloaded. * * @param fileNames: the library files (.so) of the plugins. */ void KsPluginManager::addPlugins(const QStringList &fileNames) { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; kshark_handle_plugins(kshark_ctx, KSHARK_PLUGIN_CLOSE); for (auto const &p: fileNames) registerPlugin(p); kshark_handle_plugins(kshark_ctx, KSHARK_PLUGIN_INIT); emit dataReload(); } /** Unload all plugins. */ void KsPluginManager::unloadAll() { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; kshark_handle_plugins(kshark_ctx, KSHARK_PLUGIN_CLOSE); kshark_free_plugin_list(kshark_ctx->plugins); kshark_ctx->plugins = nullptr; kshark_free_event_handler_list(kshark_ctx->event_handlers); unregisterFromList(kshark_ctx); } /** @brief Update (change) the Plugins. * * @param pluginIds: The indexes of the plugins to be loaded. */ void KsPluginManager::updatePlugins(QVector pluginIds) { kshark_context *kshark_ctx(nullptr); if (!kshark_instance(&kshark_ctx)) return; auto register_plugins = [&] (QVector ids) { int nKsPlugins = _registeredKsPlugins.count(); /* First clear all registered plugins. */ for (auto &p: _registeredKsPlugins) p = false; for (auto &p: _registeredUserPlugins) p = false; /* The vector contains the indexes of those to register. */ for (auto const &p: ids) { if (p < nKsPlugins) _registeredKsPlugins[p] = true; else _registeredUserPlugins[p - nKsPlugins] = true; } registerFromList(kshark_ctx); }; if (!kshark_ctx->pevent) { kshark_free_plugin_list(kshark_ctx->plugins); kshark_ctx->plugins = nullptr; /* * No data is loaded. For the moment, just register the * plugins. Handling of the plugins will be done after * we load a data file. */ register_plugins(pluginIds); return; } /* Clean up all old plugins first. */ unloadAll(); /* Now load. */ register_plugins(pluginIds); kshark_handle_plugins(kshark_ctx, KSHARK_PLUGIN_INIT); emit dataReload(); } trace-cmd-2.8.3/kernel-shark/src/KsUtils.hpp000066400000000000000000000131361351617527000206620ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsUtils.hpp * @brief KernelShark Utils. */ #ifndef _KS_UTILS_H #define _KS_UTILS_H // C++ 11 #include // Qt #include // KernelShark #include "libkshark.h" #include "libkshark-model.h" #include "KsCmakeDef.hpp" #include "KsPlotTools.hpp" /** Macro providing the height of the screen in pixels. */ #define SCREEN_HEIGHT QApplication::desktop()->screenGeometry().height() /** Macro providing the width of the screen in pixels. */ #define SCREEN_WIDTH QApplication::desktop()->screenGeometry().width() //! @cond Doxygen_Suppress auto fontHeight = []() { QFont font; QFontMetrics fm(font); return fm.height(); }; auto stringWidth = [](QString s) { QFont font; QFontMetrics fm(font); return fm.width(s); }; //! @endcond /** Macro providing the height of the font in pixels. */ #define FONT_HEIGHT fontHeight() /** Macro providing the width of the font in pixels. */ #define FONT_WIDTH stringWidth("4") /** Macro providing the width of a string in pixels. */ #define STRING_WIDTH(s) stringWidth(s) /** Macro providing the height of the KernelShark graphs in pixels. */ #define KS_GRAPH_HEIGHT (FONT_HEIGHT*2) //! @cond Doxygen_Suppress #define KS_JSON_CAST(doc) \ reinterpret_cast(doc) #define KS_C_STR_CAST(doc) \ reinterpret_cast(doc) typedef std::chrono::high_resolution_clock::time_point hd_time; #define GET_TIME std::chrono::high_resolution_clock::now() #define GET_DURATION(t0) \ std::chrono::duration_cast>( \ std::chrono::high_resolution_clock::now() - t0).count() //! @endcond namespace KsUtils { QVector getPidList(); QVector getFilterIds(tracecmd_filter_id *filter); /** @brief Geat the list of plugins. */ inline QStringList getPluginList() {return plugins.split(";");} void listFilterSync(bool state); void graphFilterSync(bool state); QCheckBox *addCheckBoxToMenu(QMenu *menu, QString name); /** @brief Convert the timestamp of the trace record into a string showing * the time in seconds. * * @param ts: Input location for the timestamp. * @param prec: the number of digits after the decimal point in the return * string. * * @returns String showing the time in seconds. */ inline QString Ts2String(int64_t ts, int prec) { return QString::number(ts * 1e-9, 'f', prec); } bool matchCPUVisible(struct kshark_context *kshark_ctx, struct kshark_entry *e, int cpu); bool isInstalled(); QString getFile(QWidget *parent, const QString &windowName, const QString &filter, QString &lastFilePath); QStringList getFiles(QWidget *parent, const QString &windowName, const QString &filter, QString &lastFilePath); QString getSaveFile(QWidget *parent, const QString &windowName, const QString &filter, const QString &extension, QString &lastFilePath); }; // KsUtils /** Identifier of the Dual Marker active state. */ enum class DualMarkerState { A, B }; /** * The KsDataStore class provides the access to trace data for all KernelShark * widgets. */ class KsDataStore : public QObject { Q_OBJECT public: explicit KsDataStore(QWidget *parent = nullptr); ~KsDataStore(); void loadDataFile(const QString &file); void clear(); /** Get the trace event parser. */ tep_handle *tep() const {return _tep;} /** Get the trace data array.. */ struct kshark_entry **rows() const {return _rows;} /** Get the size of the data array. */ ssize_t size() const {return _dataSize;} void reload(); void update(); void registerCPUCollections(); void applyPosTaskFilter(QVector); void applyNegTaskFilter(QVector); void applyPosEventFilter(QVector); void applyNegEventFilter(QVector); void applyPosCPUFilter(QVector); void applyNegCPUFilter(QVector); void clearAllFilters(); signals: /** * This signal is emitted when the data has changed and the View * widgets have to update. */ void updateWidgets(KsDataStore *); private: /** Page event used to parse the page. */ tep_handle *_tep; /** Trace data array. */ struct kshark_entry **_rows; /** The size of the data array. */ ssize_t _dataSize; void _freeData(); void _unregisterCPUCollections(); void _applyIdFilter(int filterId, QVector vec); }; /** A Plugin Manage class. */ class KsPluginManager : public QObject { Q_OBJECT public: explicit KsPluginManager(QWidget *parent = nullptr); /** A list of available built-in plugins. */ QStringList _ksPluginList; /** A list of registered built-in plugins. */ QVector _registeredKsPlugins; /** A list of available user plugins. */ QStringList _userPluginList; /** A list of registered user plugins. */ QVector _registeredUserPlugins; void registerFromList(kshark_context *kshark_ctx); void unregisterFromList(kshark_context *kshark_ctx); void registerPlugin(const QString &plugin); void unregisterPlugin(const QString &plugin); void addPlugins(const QStringList &fileNames); void unloadAll(); void updatePlugins(QVector pluginId); signals: /** This signal is emitted when a plugin is loaded or unloaded. */ void dataReload(); private: void _parsePluginList(); char *_pluginLibFromName(const QString &plugin, int &n); template void _forEachInList(const QStringList &pl, const QVector ®, T action) { int nPlugins; nPlugins = pl.count(); for (int i = 0; i < nPlugins; ++i) { if (reg[i]) { action(pl[i]); } } } }; KsPlot::Color& operator <<(KsPlot::Color &thisColor, const QColor &c); #endif trace-cmd-2.8.3/kernel-shark/src/KsWidgetsLib.cpp000066400000000000000000000443321351617527000216140ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsWidgetsLib.cpp * @brief Defines small widgets and dialogues used by the KernelShark GUI. */ // KernelShark #include "libkshark.h" #include "KsUtils.hpp" #include "KsCmakeDef.hpp" #include "KsPlotTools.hpp" #include "KsWidgetsLib.hpp" /** * @brief Create KsProgressBar. * * @param message: Text to be shown. * @param parent: The parent of this widget. */ KsProgressBar::KsProgressBar(QString message, QWidget *parent) : QWidget(parent), _sb(this), _pb(&_sb) { resize(KS_BROGBAR_WIDTH, KS_BROGBAR_HEIGHT); setWindowTitle("KernelShark"); setLayout(new QVBoxLayout); _pb.setOrientation(Qt::Horizontal); _pb.setTextVisible(false); _pb.setRange(0, KS_PROGRESS_BAR_MAX); _pb.setValue(1); _sb.addPermanentWidget(&_pb, 1); layout()->addWidget(new QLabel(message)); layout()->addWidget(&_sb); setWindowFlags(Qt::WindowStaysOnTopHint); show(); } /** @brief Set the state of the progressbar. * * @param i: A value ranging from 0 to KS_PROGRESS_BAR_MAX. */ void KsProgressBar::setValue(int i) { _pb.setValue(i); QApplication::processEvents(); } /** * @brief Create KsMessageDialog. * * @param message: Text to be shown. * @param parent: The parent of this widget. */ KsMessageDialog::KsMessageDialog(QString message, QWidget *parent) : QDialog(parent), _text(message, this), _closeButton("Close", this) { resize(KS_MSG_DIALOG_WIDTH, KS_MSG_DIALOG_HEIGHT); _layout.addWidget(&_text); _layout.addWidget(&_closeButton); connect(&_closeButton, &QPushButton::pressed, this, &QWidget::close); this->setLayout(&_layout); } namespace KsWidgetsLib { /** * @brief Launch a File exists dialog. Use this function to ask the user * before overwriting an existing file. * * @param fileName: the name of the file. * * @returns True if the user wants to overwrite the file. Otherwise */ bool fileExistsDialog(QString fileName) { QString msg("A file "); QMessageBox msgBox; msg += fileName; msg += " already exists."; msgBox.setText(msg); msgBox.setInformativeText("Do you want to replace it?"); msgBox.setStandardButtons(QMessageBox::Save | QMessageBox::Cancel); msgBox.setDefaultButton(QMessageBox::Cancel); return (msgBox.exec() == QMessageBox::Save); } }; // KsWidgetsLib /** * @brief Create KsCheckBoxWidget. * * @param name: The name of this widget. * @param parent: The parent of this widget. */ KsCheckBoxWidget::KsCheckBoxWidget(const QString &name, QWidget *parent) : QWidget(parent), _tb(this), _allCb("all", &_tb), _cbWidget(this), _cbLayout(&_cbWidget), _topLayout(this), _name(name), _nameLabel(name + ": ",&_tb) { setWindowTitle(_name); setMinimumHeight(SCREEN_HEIGHT / 2); connect(&_allCb, &QCheckBox::clicked, this, &KsCheckBoxWidget::_checkAll); _cbWidget.setLayout(&_cbLayout); _tb.addWidget(&_nameLabel); _tb.addWidget(&_allCb); _topLayout.addWidget(&_tb); _topLayout.addWidget(&_cbWidget); _topLayout.setContentsMargins(0, 0, 0, 0); setLayout(&_topLayout); _allCb.setCheckState(Qt::Checked); } /** * Set the default state for all checkboxes (including the "all" checkbox). */ void KsCheckBoxWidget::setDefault(bool st) { Qt::CheckState state = Qt::Unchecked; if (st) state = Qt::Checked; _allCb.setCheckState(state); _checkAll(state); } /** Get a vector containing the indexes of all checked boxes. */ QVector KsCheckBoxWidget::getCheckedIds() { QVector vec; int n = _id.size(); for (int i = 0; i < n; ++i) if (_checkState(i) == Qt::Checked) vec.append(_id[i]); return vec; } /** * @brief Set the state of the checkboxes. * * @param v: Vector containing the bool values for all checkboxes. */ void KsCheckBoxWidget::set(QVector v) { Qt::CheckState state; int nChecks; nChecks = (v.size() < _id.size()) ? v.size() : _id.size(); /* Start with the "all" checkbox being checked. */ _allCb.setCheckState(Qt::Checked); for (int i = 0; i < nChecks; ++i) { if (v[i]) { state = Qt::Checked; } else { /* * At least one checkbox is unchecked. Uncheck * "all" as well. */ state = Qt::Unchecked; _allCb.setCheckState(state); } _setCheckState(i, state); } _verify(); } void KsCheckBoxWidget::_checkAll(bool st) { Qt::CheckState state = Qt::Unchecked; int n = _id.size(); if (st) state = Qt::Checked; for (int i = 0; i < n; ++i) { _setCheckState(i, state); } _verify(); } /** * @brief Create KsCheckBoxDialog. * * @param cbw: A KsCheckBoxWidget to be nested in this dialog. * @param parent: The parent of this widget. */ KsCheckBoxDialog::KsCheckBoxDialog(KsCheckBoxWidget *cbw, QWidget *parent) : QDialog(parent), _checkBoxWidget(cbw), _applyButton("Apply", this), _cancelButton("Cancel", this) { int buttonWidth; setWindowTitle(cbw->name()); _topLayout.addWidget(_checkBoxWidget); buttonWidth = STRING_WIDTH("--Cancel--"); _applyButton.setFixedWidth(buttonWidth); _cancelButton.setFixedWidth(buttonWidth); _buttonLayout.addWidget(&_applyButton); _applyButton.setAutoDefault(false); _buttonLayout.addWidget(&_cancelButton); _cancelButton.setAutoDefault(false); _buttonLayout.setAlignment(Qt::AlignLeft); _topLayout.addLayout(&_buttonLayout); _applyButtonConnection = connect(&_applyButton, &QPushButton::pressed, this, &KsCheckBoxDialog::_applyPress); connect(&_applyButton, &QPushButton::pressed, this, &QWidget::close); connect(&_cancelButton, &QPushButton::pressed, this, &QWidget::close); this->setLayout(&_topLayout); } void KsCheckBoxDialog::_applyPress() { QVector vec = _checkBoxWidget->getCheckedIds(); emit apply(vec); /* * Disconnect _applyButton. This is done in order to protect * against multiple clicks. */ disconnect(_applyButtonConnection); } /** * @brief Create KsCheckBoxTable. * * @param parent: The parent of this widget. */ KsCheckBoxTable::KsCheckBoxTable(QWidget *parent) : QTableWidget(parent) { setShowGrid(false); horizontalHeader()->setDefaultAlignment(Qt::AlignLeft); horizontalHeader()->setStretchLastSection(true); setSelectionBehavior(QAbstractItemView::SelectRows); setEditTriggers(QAbstractItemView::NoEditTriggers); setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); verticalHeader()->setVisible(false); connect(this, &QTableWidget::cellDoubleClicked, this, &KsCheckBoxTable::_doubleClicked); } /** * @brief Initialize the table. * * @param headers: The headers of the individual columns. * @param size: The number of rows. */ void KsCheckBoxTable::init(QStringList headers, int size) { QHBoxLayout *cbLayout; QWidget *cbWidget; setColumnCount(headers.count()); setRowCount(size); setHorizontalHeaderLabels(headers); _cb.resize(size); for (int i = 0; i < size; ++i) { cbWidget = new QWidget(); _cb[i] = new QCheckBox(cbWidget); cbLayout = new QHBoxLayout(cbWidget); cbLayout->addWidget(_cb[i]); cbLayout->setAlignment(Qt::AlignCenter); cbLayout->setContentsMargins(0, 0, 0, 0); cbWidget->setLayout(cbLayout); setCellWidget(i, 0, cbWidget); } } /** Reimplemented event handler used to receive key press events. */ void KsCheckBoxTable::keyPressEvent(QKeyEvent *event) { if (event->key() == Qt::Key_Return) { for (auto &s: selectedItems()) { if (s->column() == 1) emit changeState(s->row()); } } QApplication::processEvents(); QTableWidget::keyPressEvent(event); } /** Reimplemented event handler used to receive mouse press events. */ void KsCheckBoxTable::mousePressEvent(QMouseEvent *event) { if (event->button() == Qt::RightButton) { for (auto &i: selectedItems()) i->setSelected(false); return; } QApplication::processEvents(); QTableWidget::mousePressEvent(event); } void KsCheckBoxTable::_doubleClicked(int row, int col) { emit changeState(row); for (auto &i: selectedItems()) i->setSelected(false); } /** * @brief Create KsCheckBoxTableWidget. * * @param name: The name of this widget. * @param parent: The parent of this widget. */ KsCheckBoxTableWidget::KsCheckBoxTableWidget(const QString &name, QWidget *parent) : KsCheckBoxWidget(name, parent), _table(this) { connect(&_table, &KsCheckBoxTable::changeState, this, &KsCheckBoxTableWidget::_changeState); } /** Initialize the KsCheckBoxTable and its layout. */ void KsCheckBoxTableWidget::_initTable(QStringList headers, int size) { _table.init(headers, size); for (auto const & cb: _table._cb) { connect(cb, &QCheckBox::clicked, this, &KsCheckBoxTableWidget::_update); } _cbLayout.setContentsMargins(1, 1, 1, 1); _cbLayout.addWidget(&_table); } /** Adjust the size of this widget according to its content. */ void KsCheckBoxTableWidget::_adjustSize() { int width; _table.setVisible(false); _table.resizeColumnsToContents(); _table.setVisible(true); width = _table.horizontalHeader()->length() + FONT_WIDTH * 3 + style()->pixelMetric(QStyle::PM_ScrollBarExtent); _cbWidget.resize(width, _cbWidget.height()); setMinimumWidth(_cbWidget.width() + _cbLayout.contentsMargins().left() + _cbLayout.contentsMargins().right() + _topLayout.contentsMargins().left() + _topLayout.contentsMargins().right()); } void KsCheckBoxTableWidget::_update(bool state) { /* If a Checkbox is being unchecked. Unchecked "all" as well. */ if (!state) _allCb.setCheckState(Qt::Unchecked); } void KsCheckBoxTableWidget::_changeState(int row) { if (_table._cb[row]->checkState() == Qt::Checked) _table._cb[row]->setCheckState(Qt::Unchecked); else _table._cb[row]->setCheckState(Qt::Checked); _allCb.setCheckState(Qt::Checked); for (auto &c: _table._cb) { if (c->checkState() == Qt::Unchecked) { _allCb.setCheckState(Qt::Unchecked); break; } } } static void update_r(QTreeWidgetItem *item, Qt::CheckState state) { int n; item->setCheckState(0, state); n = item->childCount(); for (int i = 0; i < n; ++i) update_r(item->child(i), state); } /** * @brief Create KsCheckBoxTree. * * @param parent: The parent of this widget. */ KsCheckBoxTree::KsCheckBoxTree(QWidget *parent) : QTreeWidget(parent) { setColumnCount(2); setHeaderHidden(true); setSelectionBehavior(QAbstractItemView::SelectRows); setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); connect(this, &KsCheckBoxTree::itemDoubleClicked, this, &KsCheckBoxTree::_doubleClicked); } /** Reimplemented event handler used to receive key press events. */ void KsCheckBoxTree::keyPressEvent(QKeyEvent *event) { if (event->key() == Qt::Key_Return) { /* Loop over all selected child items and change * there states. */ for (auto &s: selectedItems()) { if(s->childCount()) { if (s->isExpanded()) continue; } if (s->checkState(0) == Qt::Unchecked) s->setCheckState(0, Qt::Checked); else s->setCheckState(0, Qt::Unchecked); if(s->childCount()) { update_r(s, s->checkState(0)); } } } emit verify(); QTreeWidget::keyPressEvent(event); } void KsCheckBoxTree::_doubleClicked(QTreeWidgetItem *item, int col) { if (item->checkState(0) == Qt::Unchecked) item->setCheckState(0, Qt::Checked); else item->setCheckState(0, Qt::Unchecked); for (auto &i: selectedItems()) i->setSelected(false); emit itemClicked(item, col); } /** Reimplemented event handler used to receive mouse press events. */ void KsCheckBoxTree::mousePressEvent(QMouseEvent *event) { if (event->button() == Qt::RightButton) { for (auto &i: selectedItems()) i->setSelected(false); return; } QApplication::processEvents(); QTreeWidget::mousePressEvent(event); } /** * @brief Create KsCheckBoxTreeWidget. * * @param name: The name of this widget. * @param parent: The parent of this widget. */ KsCheckBoxTreeWidget::KsCheckBoxTreeWidget(const QString &name, QWidget *parent) : KsCheckBoxWidget(name, parent), _tree(this) { connect(&_tree, &KsCheckBoxTree::verify, this, &KsCheckBoxTreeWidget::_verify); } /** Initialize the KsCheckBoxTree and its layout. */ void KsCheckBoxTreeWidget::_initTree() { _tree.setSelectionMode(QAbstractItemView::MultiSelection); connect(&_tree, &QTreeWidget::itemClicked, this, &KsCheckBoxTreeWidget::_update); _cbLayout.setContentsMargins(1, 1, 1, 1); _cbLayout.addWidget(&_tree); } /** Adjust the size of this widget according to its content. */ void KsCheckBoxTreeWidget::_adjustSize() { int width, n = _tree.topLevelItemCount(); if (n == 0) return; for (int i = 0; i < n; ++i) _tree.topLevelItem(i)->setExpanded(true); _tree.resizeColumnToContents(0); if (_tree.topLevelItem(0)->child(0)) { width = _tree.visualItemRect(_tree.topLevelItem(0)->child(0)).width(); } else { width = _tree.visualItemRect(_tree.topLevelItem(0)).width(); } width += FONT_WIDTH*3 + style()->pixelMetric(QStyle::PM_ScrollBarExtent); _cbWidget.resize(width, _cbWidget.height()); for (int i = 0; i < n; ++i) _tree.topLevelItem(i)->setExpanded(false); setMinimumWidth(_cbWidget.width() + _cbLayout.contentsMargins().left() + _cbLayout.contentsMargins().right() + _topLayout.contentsMargins().left() + _topLayout.contentsMargins().right()); } void KsCheckBoxTreeWidget::_update(QTreeWidgetItem *item, int column) { /* Get the new state of the item. */ Qt::CheckState state = item->checkState(0); /* Recursively update all items below this one. */ update_r(item, state); /* * Update all items above this one including the "all" * check box. */ _verify(); } void KsCheckBoxTreeWidget::_verify() { /* * Set the state of the top level items according to the * state of the childs. */ QTreeWidgetItem *topItem, *childItem; for(int t = 0; t < _tree.topLevelItemCount(); ++t) { topItem = _tree.topLevelItem(t); if (topItem->childCount() == 0) continue; topItem->setCheckState(0, Qt::Checked); for (int c = 0; c < topItem->childCount(); ++c) { childItem = topItem->child(c); if (childItem->checkState(0) == Qt::Unchecked) topItem->setCheckState(0, Qt::Unchecked); } } _allCb.setCheckState(Qt::Checked); for (auto &c: _cb) { if (c->checkState(0) == Qt::Unchecked) { _allCb.setCheckState(Qt::Unchecked); break; } } } /** * @brief Create KsCPUCheckBoxWidget. * * @param tep: Trace event parseer. * @param parent: The parent of this widget. */ KsCPUCheckBoxWidget::KsCPUCheckBoxWidget(struct tep_handle *tep, QWidget *parent) : KsCheckBoxTreeWidget("CPUs", parent) { int nCPUs(0), height(FONT_HEIGHT * 1.5); KsPlot::ColorTable colors; QString style; style = QString("QTreeView::item { height: %1 ;}").arg(height); _tree.setStyleSheet(style); _initTree(); if (tep) nCPUs = tep_get_cpus(tep); _id.resize(nCPUs); _cb.resize(nCPUs); colors = KsPlot::getCPUColorTable(); for (int i = 0; i < nCPUs; ++i) { QTreeWidgetItem *cpuItem = new QTreeWidgetItem; cpuItem->setText(0, " "); cpuItem->setText(1, QString("CPU %1").arg(i)); cpuItem->setCheckState(0, Qt::Checked); cpuItem->setBackgroundColor(0, QColor(colors[i].r(), colors[i].g(), colors[i].b())); _tree.addTopLevelItem(cpuItem); _id[i] = i; _cb[i] = cpuItem; } _adjustSize(); } /** * @brief Create KsEventsCheckBoxWidget. * * @param tep: Trace event parseer. * @param parent: The parent of this widget. */ KsEventsCheckBoxWidget::KsEventsCheckBoxWidget(struct tep_handle *tep, QWidget *parent) : KsCheckBoxTreeWidget("Events", parent) { QTreeWidgetItem *sysItem, *evtItem; tep_event **events(nullptr); QString sysName, evtName; int nEvts(0), i(0); if (tep) { nEvts = tep_get_events_count(tep); events = tep_list_events(tep, TEP_EVENT_SORT_SYSTEM); } _initTree(); _id.resize(nEvts); _cb.resize(nEvts); while (i < nEvts) { sysName = events[i]->system; sysItem = new QTreeWidgetItem; sysItem->setText(0, sysName); sysItem->setCheckState(0, Qt::Checked); _tree.addTopLevelItem(sysItem); while (sysName == events[i]->system) { evtName = events[i]->name; evtItem = new QTreeWidgetItem; evtItem->setText(0, evtName); evtItem->setCheckState(0, Qt::Checked); evtItem->setFlags(evtItem->flags() | Qt::ItemIsUserCheckable); sysItem->addChild(evtItem); _id[i] = events[i]->id; _cb[i] = evtItem; if (++i == nEvts) break; } } _tree.sortItems(0, Qt::AscendingOrder); _adjustSize(); } /** Remove a System from the Checkbox tree. */ void KsEventsCheckBoxWidget::removeSystem(QString name) { QTreeWidgetItem *item = _tree.findItems(name, Qt::MatchFixedString, 0)[0]; int index = _tree.indexOfTopLevelItem(item); if (index >= 0) _tree.takeTopLevelItem(index); } /** * @brief Create KsTasksCheckBoxWidget. * * @param pevent: Page event used to parse the page. * @param cond: If True make a "Show Task" widget. Otherwise make "Hide Task". * @param parent: The parent of this widget. */ KsTasksCheckBoxWidget::KsTasksCheckBoxWidget(struct tep_handle *pevent, bool cond, QWidget *parent) : KsCheckBoxTableWidget("Tasks", parent) { kshark_context *kshark_ctx(nullptr); QTableWidgetItem *pidItem, *comItem; KsPlot::ColorTable colors; QStringList headers; const char *comm; int nTasks, pid; if (!kshark_instance(&kshark_ctx)) return; if (_cond) headers << "Show" << "Pid" << "Task"; else headers << "Hide" << "Pid" << "Task"; _id = KsUtils::getPidList(); nTasks = _id.count(); _initTable(headers, nTasks); colors = KsPlot::getTaskColorTable(); for (int i = 0; i < nTasks; ++i) { pid = _id[i]; pidItem = new QTableWidgetItem(tr("%1").arg(pid)); _table.setItem(i, 1, pidItem); comm = tep_data_comm_from_pid(kshark_ctx->pevent, pid); comItem = new QTableWidgetItem(tr(comm)); pidItem->setBackgroundColor(QColor(colors[pid].r(), colors[pid].g(), colors[pid].b())); if (_id[i] == 0) pidItem->setTextColor(Qt::white); _table.setItem(i, 2, comItem); } _adjustSize(); } /** * @brief Create KsPluginCheckBoxWidget. * * @param pluginList: A list of plugin names. * @param parent: The parent of this widget. */ KsPluginCheckBoxWidget::KsPluginCheckBoxWidget(QStringList pluginList, QWidget *parent) : KsCheckBoxTableWidget("Plugins", parent) { QTableWidgetItem *nameItem, *infoItem; QStringList headers; int nPlgins; headers << "Load" << "Name" << "Info"; nPlgins = pluginList.count(); _initTable(headers, nPlgins); _id.resize(nPlgins); for (int i = 0; i < nPlgins; ++i) { nameItem = new QTableWidgetItem(pluginList[i]); _table.setItem(i, 1, nameItem); infoItem = new QTableWidgetItem(" -- "); _table.setItem(i, 2, infoItem); _id[i] = i; } _adjustSize(); } trace-cmd-2.8.3/kernel-shark/src/KsWidgetsLib.hpp000066400000000000000000000160211351617527000216130ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file KsWidgetsLib.hpp * @brief Defines small widgets and dialogues used by the KernelShark GUI. */ #ifndef _KS_WIDGETS_LIB_H #define _KS_WIDGETS_LIB_H // Qt #include /** * The KsProgressBar class provides a visualization of the progress of a * running job. */ class KsProgressBar : public QWidget { Q_OBJECT QStatusBar _sb; QProgressBar _pb; public: KsProgressBar(QString message, QWidget *parent = nullptr); void setValue(int i); }; /** Defines the progress bar's maximum value. */ #define KS_PROGRESS_BAR_MAX 200 /** The height of the KsProgressBar widget. */ #define KS_BROGBAR_HEIGHT (FONT_HEIGHT * 5) /** The width of the KsProgressBar widget. */ #define KS_BROGBAR_WIDTH (FONT_WIDTH * 50) /** * The KsMessageDialog class provides a widget showing a message and having * a "Close" button. */ class KsMessageDialog : public QDialog { QVBoxLayout _layout; QLabel _text; QPushButton _closeButton; public: explicit KsMessageDialog(QWidget *parent) = delete; KsMessageDialog(QString message, QWidget *parent = nullptr); }; /** The height of the KsMessageDialog widget. */ #define KS_MSG_DIALOG_HEIGHT (FONT_HEIGHT * 8) /** The width of the KsMessageDialog widget. */ #define KS_MSG_DIALOG_WIDTH (SCREEN_WIDTH / 10) namespace KsWidgetsLib { bool fileExistsDialog(QString fileName); }; // KsWidgetsLib /** * The KsCheckBoxWidget class is the base class of all CheckBox widget used * by KernelShark. */ class KsCheckBoxWidget : public QWidget { Q_OBJECT public: KsCheckBoxWidget(const QString &name = "", QWidget *parent = nullptr); /** Get the name of the widget. */ QString name() const {return _name;} /** Get the state of the "all" checkboxe. */ bool all() const { if(_allCb.checkState() == Qt::Checked) return true; return false; } void setDefault(bool); void set(QVector v); QVector getCheckedIds(); private: QToolBar _tb; protected: /** The "all" checkboxe. */ QCheckBox _allCb; /** A vector of Id numbers coupled to each checkboxe. */ QVector _id; /** A nested widget used to position the checkboxes. */ QWidget _cbWidget; /** The layout of the nested widget. */ QVBoxLayout _cbLayout; /** The top level layout of this widget. */ QVBoxLayout _topLayout; /** The name of this widget. */ QString _name; /** A label to show the name of the widget. */ QLabel _nameLabel; private: virtual void _setCheckState(int i, Qt::CheckState st) = 0; virtual Qt::CheckState _checkState(int i) const = 0; virtual void _verify() {}; void _checkAll(bool); }; /** * The KsCheckBoxDialog class is the base class of all CheckBox dialogs * used by KernelShark. */ class KsCheckBoxDialog : public QDialog { Q_OBJECT public: KsCheckBoxDialog() = delete; KsCheckBoxDialog(KsCheckBoxWidget *cbw, QWidget *parent = nullptr); signals: /** Signal emitted when the "Apply" button is pressed. */ void apply(QVector); private: void _applyPress(); QVBoxLayout _topLayout; QHBoxLayout _buttonLayout; KsCheckBoxWidget *_checkBoxWidget; QPushButton _applyButton, _cancelButton; QMetaObject::Connection _applyButtonConnection; }; /** The KsCheckBoxTable class provides a table of checkboxes. */ class KsCheckBoxTable : public QTableWidget { Q_OBJECT public: explicit KsCheckBoxTable(QWidget *parent = nullptr); void init(QStringList headers, int size); /** A vector of checkboxes. */ QVector _cb; signals: /** Signal emitted when a checkboxes changes state. */ void changeState(int row); protected: void keyPressEvent(QKeyEvent *event) override; void mousePressEvent(QMouseEvent *event) override; private: void _doubleClicked(int row, int col); }; /** * The KsCheckBoxTableWidget class provides a widget to hold a table of * checkboxes. */ class KsCheckBoxTableWidget : public KsCheckBoxWidget { Q_OBJECT public: KsCheckBoxTableWidget(const QString &name = "", QWidget *parent = nullptr); protected: void _adjustSize(); void _initTable(QStringList headers, int size); /** The KsCheckBoxTable, shown by this widget. */ KsCheckBoxTable _table; private: void _setCheckState(int i, Qt::CheckState st) override { _table._cb[i]->setCheckState(st); } Qt::CheckState _checkState(int i) const override { return _table._cb[i]->checkState(); } void _update(bool); void _changeState(int row); }; /** The KsCheckBoxTree class provides a tree of checkboxes. */ class KsCheckBoxTree : public QTreeWidget { Q_OBJECT public: explicit KsCheckBoxTree(QWidget *parent = nullptr); signals: /** * Signal emitted when a checkboxes of the tree changes its state * and the state of all toplevel and child checkboxes has to be * reprocesed. */ void verify(); protected: void keyPressEvent(QKeyEvent *event) override; void mousePressEvent(QMouseEvent *event) override; private: void _doubleClicked(QTreeWidgetItem *item, int col); }; /** * The KsCheckBoxTreeWidget class provides a widget to hold a tree of * checkboxes. */ class KsCheckBoxTreeWidget : public KsCheckBoxWidget { Q_OBJECT public: KsCheckBoxTreeWidget() = delete; KsCheckBoxTreeWidget(const QString &name = "", QWidget *parent = nullptr); protected: void _adjustSize(); void _initTree(); /** The KsCheckBoxTree, shown by this widget. */ KsCheckBoxTree _tree; /** A vector of Tree items (checkboxes). */ QVector _cb; private: void _setCheckState(int i, Qt::CheckState st) override { _cb[i]->setCheckState(0, st); } Qt::CheckState _checkState(int i) const override { return _cb[i]->checkState(0); } void _update(QTreeWidgetItem *item, int column); void _verify(); }; /** * The KsCPUCheckBoxWidget class provides a widget for selecting CPU plots to * show. */ struct KsCPUCheckBoxWidget : public KsCheckBoxTreeWidget { KsCPUCheckBoxWidget() = delete; KsCPUCheckBoxWidget(struct tep_handle *pe, QWidget *parent = nullptr); }; /** * The KsTasksCheckBoxWidget class provides a widget for selecting Tasks * to show or hide. */ struct KsTasksCheckBoxWidget : public KsCheckBoxTableWidget { KsTasksCheckBoxWidget() = delete; KsTasksCheckBoxWidget(struct tep_handle *pe, bool cond = true, QWidget *parent = nullptr); private: /** * A positive condition means that you want to show Tasks and * a negative condition means that you want to hide Tasks. */ bool _cond; }; /** * The KsEventsCheckBoxWidget class provides a widget for selecting Trace * events to show or hide. */ struct KsEventsCheckBoxWidget : public KsCheckBoxTreeWidget { KsEventsCheckBoxWidget() = delete; KsEventsCheckBoxWidget(struct tep_handle *pe, QWidget *parent = nullptr); void removeSystem(QString name); }; /** * The KsPluginCheckBoxWidget class provides a widget for selecting plugins. */ struct KsPluginCheckBoxWidget : public KsCheckBoxTableWidget { KsPluginCheckBoxWidget() = delete; KsPluginCheckBoxWidget(QStringList pluginList, QWidget *parent = nullptr); }; #endif trace-cmd-2.8.3/kernel-shark/src/kernelshark.cpp000066400000000000000000000035331351617527000215700ustar00rootroot00000000000000// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ // C #include #include // Qt #include // KernelShark #include "KsCmakeDef.hpp" #include "KsMainWindow.hpp" #define default_input_file (char*)"trace.dat" static char *input_file; void usage(const char *prog) { printf("Usage: %s\n", prog); printf(" -h Display this help message\n"); printf(" -v Display version and exit\n"); printf(" -i input_file, default is %s\n", default_input_file); printf(" -p register plugin, use plugin name, absolute or relative path\n"); printf(" -u unregister plugin, use plugin name or absolute path\n"); printf(" -s import a session\n"); printf(" -l import the last session\n"); } int main(int argc, char **argv) { QApplication::setAttribute(Qt::AA_EnableHighDpiScaling); QApplication a(argc, argv); KsMainWindow ks; int c; bool fromSession = false; while ((c = getopt(argc, argv, "hvi:p:u:s:l")) != -1) { switch(c) { case 'h': usage(argv[0]); return 0; case 'v': printf("%s - %s\n", basename(argv[0]), KS_VERSION_STRING); return 0; case 'i': input_file = optarg; break; case 'p': ks.registerPlugin(QString(optarg)); break; case 'u': ks.unregisterPlugin(QString(optarg)); break; case 's': ks.loadSession(QString(optarg)); fromSession = true; break; case 'l': ks.loadSession(ks.lastSessionFile()); fromSession = true; break; default: break; } } if (!fromSession) { if ((argc - optind) >= 1) { if (input_file) usage(argv[0]); input_file = argv[optind]; } if (!input_file) { struct stat st; if (stat(default_input_file, &st) == 0) input_file = default_input_file; } if (input_file) ks.loadDataFile(QString(input_file)); } ks.show(); return a.exec(); } trace-cmd-2.8.3/kernel-shark/src/kshark-record.cpp000066400000000000000000000007011351617527000220100ustar00rootroot00000000000000// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ // C #include // KernelShark #include "KsCaptureDialog.hpp" int main(int argc, char **argv) { QApplication a(argc, argv); KsCaptureDialog cd; int c; while ((c = getopt(argc, argv, "o:")) != -1) { switch(c) { case 'o': cd.setOutputFileName(QString(optarg)); break; } } cd.show(); return a.exec(); } trace-cmd-2.8.3/kernel-shark/src/libkshark-collection.c000066400000000000000000000562511351617527000230270ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file libkshark-collection.c * @brief Data Collections. */ // C #include #include #include #include // KernelShark #include "libkshark.h" /* Quiet warnings over documenting simple structures */ //! @cond Doxygen_Suppress enum collection_point_type { COLLECTION_IGNORE = 0, COLLECTION_RESUME, COLLECTION_BREAK, }; #define LAST_BIN -3 struct entry_list { struct entry_list *next; size_t index; uint8_t type; }; enum map_flags { COLLECTION_BEFORE = -1, COLLECTION_INSIDE = 0, COLLECTION_AFTER = 1, }; //! @endcond /* * If the type of the last added entry is COLLECTION_IGNORE, overwrite this * entry (ignore the old entry values). Else add a new entry to the list. */ static bool collection_add_entry(struct entry_list **list, size_t i, uint8_t type) { struct entry_list *entry = *list; if (entry->type != COLLECTION_IGNORE) { entry->next = malloc(sizeof(*entry)); if (!entry->next) return false; entry = entry->next; *list = entry; } entry->index = i; entry->type = type; return true; } static struct kshark_entry_collection * kshark_data_collection_alloc(struct kshark_context *kshark_ctx, struct kshark_entry **data, ssize_t first, size_t n_rows, matching_condition_func cond, int val, size_t margin) { struct kshark_entry_collection *col_ptr = NULL; struct kshark_entry *last_vis_entry = NULL; struct entry_list *col_list, *temp; size_t resume_count = 0, break_count = 0; size_t i, j, last_added = 0; ssize_t end; bool good_data = false; /* Create the collection. */ col_ptr = calloc(1, sizeof(*col_ptr)); if (!col_ptr) goto fail; end = first + n_rows - margin; if (first >= end) return col_ptr; col_list = malloc(sizeof(*col_list)); if (!col_list) goto fail; temp = col_list; if (margin != 0) { /* * If this collection includes margin data, add a margin data * interval at the very beginning of the data-set. */ temp->index = first; temp->type = COLLECTION_RESUME; ++resume_count; collection_add_entry(&temp, first + margin - 1, COLLECTION_BREAK); ++break_count; } else { temp->type = COLLECTION_IGNORE; } for (i = first + margin; i < end; ++i) { if (!cond(kshark_ctx, data[i], val)) { /* * The entry is irrelevant for this collection. * Do nothing. */ continue; } /* The Matching condition is satisfed. */ if (!good_data) { /* * Resume the collection here. Add some margin data * in front of the data of interest. */ good_data = true; if (last_added == 0 || last_added < i - margin) { collection_add_entry(&temp, i - margin, COLLECTION_RESUME); ++resume_count; } else { /* * Ignore the last collection Break point. * Continue extending the previous data * interval. */ temp->type = COLLECTION_IGNORE; --break_count; } } else if (good_data && data[i]->next && !cond(kshark_ctx, data[i]->next, val)) { /* * Break the collection here. Add some margin data * after the data of interest. */ good_data = false; last_vis_entry = data[i]; /* Keep adding entries until the "next" record. */ for (j = i + 1; j != end && last_vis_entry->next != data[j]; j++) ; /* * If the number of added entries is smaller than the * number of margin entries requested, keep adding * until you fill the margin. */ if (i + margin >= j) { for (;j < i + margin; ++j) { if (cond(kshark_ctx, data[j], val)) { /* * Good data has been found. * Continue extending the * previous data interval. */ good_data = true; break; } } } last_added = i = j; if (!good_data) { collection_add_entry(&temp, i, COLLECTION_BREAK); ++break_count; } } } if (good_data) { collection_add_entry(&temp, end - 1, COLLECTION_BREAK); ++break_count; } if (margin != 0) { /* * If this collection includes margin data, add a margin data * interval at the very end of the data-set. */ collection_add_entry(&temp, first + n_rows - margin, COLLECTION_RESUME); ++resume_count; collection_add_entry(&temp, first + n_rows - 1, COLLECTION_BREAK); ++break_count; } /* * If everything is OK, we must have pairs of COLLECTION_RESUME * and COLLECTION_BREAK points. */ assert(break_count == resume_count); col_ptr->next = NULL; col_ptr->resume_points = calloc(resume_count, sizeof(*col_ptr->resume_points)); if (!col_ptr->resume_points) goto fail; col_ptr->break_points = calloc(break_count, sizeof(*col_ptr->break_points)); if (!col_ptr->break_points) { free(col_ptr->resume_points); goto fail; } col_ptr->cond = cond; col_ptr->val = val; col_ptr->size = resume_count; for (i = 0; i < col_ptr->size; ++i) { assert(col_list->type == COLLECTION_RESUME); col_ptr->resume_points[i] = col_list->index; temp = col_list; col_list = col_list->next; free(temp); assert(col_list->type == COLLECTION_BREAK); col_ptr->break_points[i] = col_list->index; temp = col_list; col_list = col_list->next; free(temp); } return col_ptr; fail: fprintf(stderr, "Failed to allocate memory for Data collection.\n"); free(col_ptr); for (i = 0; i < resume_count + break_count; ++i) { temp = col_list; col_list = col_list->next; free(temp); } return NULL; } /* * This function provides mapping between the index inside the data-set and * the index of the collection interval. Additional output flag is used to * resolve the ambiguity of the mapping. If the value of the flag is * COLLECTION_INSIDE, the "source_index" is inside the returned interval. If * the value of the flag is COLLECTION_BEFORE, the "source_index" is inside * the gap before the returned interval. If the value of the flag is * COLLECTION_AFTER, the "source_index" is inside the gap after the returned * interval. */ static ssize_t map_collection_index_from_source(const struct kshark_entry_collection *col, size_t source_index, int *flag) { size_t l, h, mid; if (!col->size) return KS_EMPTY_BIN; l = 0; h = col->size - 1; if (source_index < col->resume_points[l]) { *flag = COLLECTION_BEFORE; return l; } if (source_index >= col->resume_points[h]) { if (source_index < col->break_points[h]) *flag = COLLECTION_INSIDE; else *flag = COLLECTION_AFTER; return h; } BSEARCH(h, l, source_index > col->resume_points[mid]); if (source_index <= col->break_points[l]) *flag = COLLECTION_INSIDE; else *flag = COLLECTION_AFTER; return l; } static ssize_t map_collection_request_init(const struct kshark_entry_collection *col, struct kshark_entry_request **req, bool front, size_t *end) { struct kshark_entry_request *req_tmp = *req; int col_index_flag; ssize_t col_index; size_t req_end; if (req_tmp->next || col->size == 0) { fprintf(stderr, "Unexpected input in "); fprintf(stderr, "map_collection_request_init()\n"); goto do_nothing; } req_end = front ? req_tmp->first + req_tmp->n - 1 : req_tmp->first - req_tmp->n + 1; /* * Find the first Resume Point of the collection which is equal or * greater than the first index of this request. */ col_index = map_collection_index_from_source(col, req_tmp->first, &col_index_flag); /* * The value of "col_index" is ambiguous. Use the "col_index_flag" to * deal with all possible cases. */ if (col_index == KS_EMPTY_BIN) { /* Empty collection. */ goto do_nothing; } if (col_index_flag == COLLECTION_AFTER) { /* * This request starts after the end of interval "col_index". */ if (front && (col_index == col->size - 1 || req_end < col->resume_points[col_index + 1])) { /* * No overlap between the collection and this front * request. Do nothing. */ goto do_nothing; } else if (!front && req_end > col->break_points[col_index]) { /* * No overlap between the collection and this back * request. Do nothing. */ goto do_nothing; } /* Remember that the initial request starts in the gap between * the end of "col_index" interval and the beginning of * "col_index + 1" interval. If we process a Front request, we * have to go forwards, so the proper place for starting our * search will be the Resume point of the "col_index + 1" * interval. However, if we process a Back request, we will be * going backwards, so the proper place to start will be the * Break point of "col_index". */ req_tmp->first = front ? col->resume_points[++col_index] : col->break_points[col_index]; } if (col_index_flag == COLLECTION_BEFORE) { /* * This request starts before the beginning of interval * "col_index". */ if (!front && (col_index == 0 || req_end > col->break_points[col_index - 1])) { /* * No overlap between the collection and this back * request. Do nothing. */ goto do_nothing; } else if (front && req_end < col->resume_points[col_index]) { /* * No overlap between the collection and this front * request. Do nothing. */ goto do_nothing; } /* Remember that the initial request starts in the gap between * the end of "col_index - 1" interval and the beginning of * "col_index" interval. If we process a Front request, we have * to go forwards, so the proper place for starting our search * will be the Resume point of the "col_index" interval. * However, if we process a Back request, we will be going * backwards, so the proper place to start will be the Break * point of "col_index - 1". */ req_tmp->first = front ? col->resume_points[col_index] : col->break_points[--col_index]; } *end = req_end; return col_index; do_nothing: kshark_free_entry_request(*req); *req = NULL; *end = KS_EMPTY_BIN; return KS_EMPTY_BIN; } /* * This function uses the intervals of the Data collection to transform the * inputted single data request into a list of data requests. The new list of * request will ignore the data outside of the intervals of the collection. */ static int map_collection_back_request(const struct kshark_entry_collection *col, struct kshark_entry_request **req) { struct kshark_entry_request *req_tmp; size_t req_first, req_end; ssize_t col_index; int req_count; col_index = map_collection_request_init(col, req, false, &req_end); if (col_index == KS_EMPTY_BIN) return 0; /* * Now loop over the intervals of the collection going backwards till * the end of the inputted request and create a separate request for * each of those interest. */ req_tmp = *req; req_count = 1; while (col_index >= 0 && req_end <= col->break_points[col_index]) { if (req_end >= col->resume_points[col_index]) { /* * The last entry of the original request is inside * the "col_index" collection interval. Close the * collection request here and return. */ req_tmp->n = req_tmp->first - req_end + 1; break; } /* * The last entry of the original request is outside of the * "col_index" interval. Close the collection request at the * end of this interval and move to the next one. Try to make * another request there. */ req_tmp->n = req_tmp->first - col->resume_points[col_index] + 1; --col_index; if (req_end > col->break_points[col_index]) { /* * The last entry of the original request comes before * the end of the next collection interval. Stop here. */ break; } if (col_index > 0) { /* Make a new request. */ req_first = col->break_points[col_index]; req_tmp->next = kshark_entry_request_alloc(req_first, 0, req_tmp->cond, req_tmp->val, req_tmp->vis_only, req_tmp->vis_mask); if (!req_tmp->next) goto fail; req_tmp = req_tmp->next; ++req_count; } } return req_count; fail: fprintf(stderr, "Failed to allocate memory for "); fprintf(stderr, "Collection data request.\n"); kshark_free_entry_request(*req); *req = NULL; return -ENOMEM; } /* * This function uses the intervals of the Data collection to transform the * inputted single data request into a list of data requests. The new list of * requests will ignore the data outside of the intervals of the collection. */ static int map_collection_front_request(const struct kshark_entry_collection *col, struct kshark_entry_request **req) { struct kshark_entry_request *req_tmp; size_t req_first, req_end; ssize_t col_index; int req_count; col_index = map_collection_request_init(col, req, true, &req_end); if (col_index == KS_EMPTY_BIN) return 0; /* * Now loop over the intervals of the collection going forwards till * the end of the inputted request and create a separate request for * each of those interest. */ req_count = 1; req_tmp = *req; while (col_index < col->size && req_end >= col->resume_points[col_index]) { if (req_end <= col->break_points[col_index]) { /* * The last entry of the original request is inside * the "col_index" collection interval. * Close the collection request here and return. */ req_tmp->n = req_end - req_tmp->first + 1; break; } /* * The last entry of the original request is outside this * collection interval (col_index). Close the collection * request at the end of the interval and move to the next * interval. Try to make another request there. */ req_tmp->n = col->break_points[col_index] - req_tmp->first + 1; ++col_index; if (req_end < col->resume_points[col_index]) { /* * The last entry of the original request comes before * the beginning of next collection interval. * Stop here. */ break; } if (col_index < col->size) { /* Make a new request. */ req_first = col->resume_points[col_index]; req_tmp->next = kshark_entry_request_alloc(req_first, 0, req_tmp->cond, req_tmp->val, req_tmp->vis_only, req_tmp->vis_mask); if (!req_tmp->next) goto fail; req_tmp = req_tmp->next; ++req_count; } } return req_count; fail: fprintf(stderr, "Failed to allocate memory for "); fprintf(stderr, "Collection data request.\n"); kshark_free_entry_request(*req); *req = NULL; return -ENOMEM; } /** * @brief Search for an entry satisfying the requirements of a given Data * request. Start from the position provided by the request and go * searching in the direction of the increasing timestamps (front). * The search is performed only inside the intervals, defined by * the data collection. * * @param req: Input location for a single Data request. The imputted request * will be transformed into a list of requests. This new list of * requests will ignore the data outside of the intervals of the * collection. * @param data: Input location for the trace data. * @param col: Input location for the Data collection. * @param index: Optional output location for the index of the returned * entry inside the array. * * @returns Pointer to the first entry satisfying the matching condition on * success, or NULL on failure. * In the special case when some entries, satisfying the Matching * condition function have been found, but all these entries have * been discarded because of the visibility criteria (filtered * entries), the function returns a pointer to a special * "Dummy entry". */ const struct kshark_entry * kshark_get_collection_entry_front(struct kshark_entry_request **req, struct kshark_entry **data, const struct kshark_entry_collection *col, ssize_t *index) { const struct kshark_entry *entry = NULL; int req_count; /* * Use the intervals of the Data collection to redefine the data * request in a way which will ignore the data outside of the * intervals of the collection. */ req_count = map_collection_front_request(col, req); if (index && !req_count) *index = KS_EMPTY_BIN; /* * Loop over the list of redefined requests and search until you find * the first matching entry. */ while (*req) { entry = kshark_get_entry_front(*req, data, index); if (entry) break; *req = (*req)->next; } return entry; } /** * @brief Search for an entry satisfying the requirements of a given Data * request. Start from the position provided by the request and go * searching in the direction of the decreasing timestamps (back). * The search is performed only inside the intervals, defined by * the data collection. * * @param req: Input location for Data request. The imputed request * will be transformed into a list of requests. This new list of * requests will ignore the data outside of the intervals of the * collection. * @param data: Input location for the trace data. * @param col: Input location for the Data collection. * @param index: Optional output location for the index of the returned * entry inside the array. * * @returns Pointer to the first entry satisfying the matching condition on * success, or NULL on failure. * In the special case when some entries, satisfying the Matching * condition function have been found, but all these entries have * been discarded because of the visibility criteria (filtered * entries), the function returns a pointer to a special * "Dummy entry". */ const struct kshark_entry * kshark_get_collection_entry_back(struct kshark_entry_request **req, struct kshark_entry **data, const struct kshark_entry_collection *col, ssize_t *index) { const struct kshark_entry *entry = NULL; int req_count; /* * Use the intervals of the Data collection to redefine the data * request in a way which will ignore the data outside of the * intervals of the collection. */ req_count = map_collection_back_request(col, req); if (index && !req_count) *index = KS_EMPTY_BIN; /* * Loop over the list of redefined requests and search until you find * the first matching entry. */ while (*req) { entry = kshark_get_entry_back(*req, data, index); if (entry) break; *req = (*req)->next; } return entry; } /** * @brief Search the list of Data collections and find the collection defined * with a given Matching condition function and value. * * @param col: Input location for the Data collection list. * @param cond: Matching condition function. * @param val: Matching condition value, used by the Matching condition * function. * * @returns Pointer to a Data collections on success, or NULL on failure. */ struct kshark_entry_collection * kshark_find_data_collection(struct kshark_entry_collection *col, matching_condition_func cond, int val) { while (col) { if (col->cond == cond && col->val == val) return col; col = col->next; } return NULL; } /** * @brief Clear all data intervals of the given Data collection. * * @param col: Input location for the Data collection. */ void kshark_reset_data_collection(struct kshark_entry_collection *col) { free(col->resume_points); col->resume_points = NULL; free(col->break_points); col->break_points = NULL; col->size = 0; } static void kshark_free_data_collection(struct kshark_entry_collection *col) { free(col->resume_points); free(col->break_points); free(col); } /** * @brief Allocate and process data collection, defined with a given Matching * condition function and value. Add this collection to the list of * collections used by the session. * * @param kshark_ctx: Input location for the session context pointer. * @param data: Input location for the trace data. * @param n_rows: The size of the inputted data. * @param cond: Matching condition function for the collection to be * registered. * @param val: Matching condition value of for collection to be registered. * @param margin: The size of the additional (margin) data which do not * satisfy the matching condition, but is added at the * beginning and at the end of each interval of the collection * as well as at the beginning and at the end of data-set. If * "0", no margin data is added. * * @returns Pointer to the registered Data collections on success, or NULL * on failure. */ struct kshark_entry_collection * kshark_register_data_collection(struct kshark_context *kshark_ctx, struct kshark_entry **data, size_t n_rows, matching_condition_func cond, int val, size_t margin) { struct kshark_entry_collection *col; col = kshark_add_collection_to_list(kshark_ctx, &kshark_ctx->collections, data, n_rows, cond, val, margin); return col; } /** * @brief Allocate and process data collection, defined with a given Matching * condition function and value. Add this collection to a given list of * collections. * * @param kshark_ctx: Input location for the session context pointer. * @param col_list: Input location for the list of collections. * @param data: Input location for the trace data. * @param n_rows: The size of the inputted data. * @param cond: Matching condition function for the collection to be * registered. * @param val: Matching condition value of for collection to be registered. * @param margin: The size of the additional (margin) data which do not * satisfy the matching condition, but is added at the * beginning and at the end of each interval of the collection * as well as at the beginning and at the end of data-set. If * "0", no margin data is added. * * @returns Pointer to the registered Data collections on success, or NULL * on failure. */ struct kshark_entry_collection * kshark_add_collection_to_list(struct kshark_context *kshark_ctx, struct kshark_entry_collection **col_list, struct kshark_entry **data, size_t n_rows, matching_condition_func cond, int val, size_t margin) { struct kshark_entry_collection *col; col = kshark_data_collection_alloc(kshark_ctx, data, 0, n_rows, cond, val, margin); if (col) { col->next = *col_list; *col_list = col; } return col; } /** * @brief Search the list of Data collections for a collection defined * with a given Matching condition function and value. If such a * collection exists, unregister (remove and free) this collection * from the list. * * @param col: Input location for the Data collection list. * @param cond: Matching condition function of the collection to be * unregistered. * * @param val: Matching condition value of the collection to be unregistered. */ void kshark_unregister_data_collection(struct kshark_entry_collection **col, matching_condition_func cond, int val) { struct kshark_entry_collection **last = col; struct kshark_entry_collection *list; for (list = *col; list; list = list->next) { if (list->cond == cond && list->val == val) { *last = list->next; kshark_free_data_collection(list); return; } last = &list->next; } } /** * @brief Free all Data collections in a given list. * * @param col: Input location for the Data collection list. */ void kshark_free_collection_list(struct kshark_entry_collection *col) { struct kshark_entry_collection *last; while (col) { last = col; col = col->next; kshark_free_data_collection(last); } } trace-cmd-2.8.3/kernel-shark/src/libkshark-configio.c000066400000000000000000001255161351617527000224720ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file libkshark-configio.c * @brief Json Configuration I/O. */ // C #ifndef _GNU_SOURCE /** Use GNU C Library. */ #define _GNU_SOURCE #endif #include #include // KernelShark #include "libkshark.h" #include "libkshark-model.h" static struct json_object *kshark_json_config_alloc(const char *type) { json_object *jobj, *jtype; jobj = json_object_new_object(); jtype = json_object_new_string(type); if (!jobj || !jtype) goto fail; /* Set the type of this Json document. */ json_object_object_add(jobj, "type", jtype); return jobj; fail: fprintf(stderr, "Failed to allocate memory for json_object.\n"); json_object_put(jobj); json_object_put(jtype); return NULL; } /** * @brief Allocate kshark_config_doc and set its format. * * @param format: Input location for the Configuration format identifier. * Currently only Json and String formats are supported. * * @returns kshark_config_doc instance on success, otherwise NULL. Use * free() to free the object. */ struct kshark_config_doc * kshark_config_alloc(enum kshark_config_formats format) { struct kshark_config_doc *doc; switch (format) { case KS_CONFIG_AUTO: case KS_CONFIG_JSON: case KS_CONFIG_STRING: doc = malloc(sizeof(*doc)); if (!doc) goto fail; doc->format = format; doc->conf_doc = NULL; return doc; default: fprintf(stderr, "Document format %d not supported\n", format); } return NULL; fail: fprintf(stderr, "Failed to allocate memory for kshark_config_doc.\n"); return NULL; } /** * @brief Create an empty Configuration document and set its format and type. * * @param type: String describing the type of the document, * e.g. "kshark.config.record" or "kshark.config.filter". * @param format: Input location for the Configuration format identifier. * Currently only Json format is supported. * * @returns kshark_config_doc instance on success, otherwise NULL. Use * kshark_free_config_doc() to free the object. */ struct kshark_config_doc * kshark_config_new(const char *type, enum kshark_config_formats format) { struct kshark_config_doc *doc = NULL; if (format == KS_CONFIG_AUTO) format = KS_CONFIG_JSON; switch (format) { case KS_CONFIG_JSON: doc = kshark_config_alloc(format); if (doc) { doc->conf_doc = kshark_json_config_alloc(type); if (!doc->conf_doc) { free(doc); doc = NULL; } } break; case KS_CONFIG_STRING: doc = kshark_config_alloc(format); break; default: fprintf(stderr, "Document format %d not supported\n", format); return NULL; } return doc; } /** * @brief Free the Configuration document. * * @param conf: Input location for the kshark_config_doc instance. It is safe * to pass a NULL value. */ void kshark_free_config_doc(struct kshark_config_doc *conf) { if (!conf) return; switch (conf->format) { case KS_CONFIG_JSON: json_object_put(conf->conf_doc); break; case KS_CONFIG_STRING: free(conf->conf_doc); break; } free(conf); } /** * @brief Use an existing Json document to create a new KernelShark * Configuration document. * * @param jobj: Input location for the json_object instance. * * @returns shark_config_doc instance on success, otherwise NULL. Use * kshark_free_config_doc() to free the object. */ struct kshark_config_doc *kshark_json_to_conf(struct json_object *jobj) { struct kshark_config_doc *conf = kshark_config_alloc(KS_CONFIG_JSON); if (conf) conf->conf_doc = jobj; return conf; } /** * @brief Use an existing string to create a new KernelShark Configuration * document. * * @param val: Input location for the string. * * @returns shark_config_doc instance on success, otherwise NULL. Use * kshark_free_config_doc() to free the object. */ struct kshark_config_doc *kshark_string_to_conf(const char* val) { struct kshark_config_doc *conf; char *str; conf = kshark_config_alloc(KS_CONFIG_STRING); if (conf) { if (asprintf(&str, "%s", val) > 0) { conf->conf_doc = str; } else { fprintf(stderr, "Failed to allocate string conf. doc.\n"); free(conf); conf = NULL; } } return conf; } /** * @brief Add a field to a KernelShark Configuration document. * * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * @param key: The name of the field. * @param val: Input location for the kshark_config_doc to be added. Currently * only Json and String formats are supported. Pass KS_CONFIG_AUTO * if you want "val" to have the same fornat as "conf". Upon * calling this function, the ownership of "val" transfers to * "conf". * * @returns True on success, otherwise False. */ bool kshark_config_doc_add(struct kshark_config_doc *conf, const char *key, struct kshark_config_doc *val) { struct json_object *jobj = NULL; if (!conf || !val) return false; if (val->format == KS_CONFIG_AUTO) val->format = conf->format; switch (conf->format) { case KS_CONFIG_JSON: switch (val->format) { case KS_CONFIG_JSON: json_object_object_add(conf->conf_doc, key, val->conf_doc); break; case KS_CONFIG_STRING: jobj = json_object_new_string(val->conf_doc); if (!jobj) goto fail; json_object_object_add(conf->conf_doc, key, jobj); break; default: fprintf(stderr, "Value format %d not supported\n", val->format); return false; } free(val); break; default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } return true; fail: fprintf(stderr, "Failed to allocate memory for json_object.\n"); json_object_put(jobj); return false; } static bool get_jval(struct kshark_config_doc *conf, const char *key, void **val) { return json_object_object_get_ex(conf->conf_doc, key, (json_object **) val); } /** * @brief Get the KernelShark Configuration document associate with a given * field name. * * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * @param key: The name of the field. * @param val: Output location for the kshark_config_doc instance containing * the field. Currently only Json and String formats are supported. * * @returns True, if the key exists, otherwise False. */ bool kshark_config_doc_get(struct kshark_config_doc *conf, const char *key, struct kshark_config_doc *val) { struct kshark_config_doc *tmp; if (!conf || !val) return false; if (val->format == KS_CONFIG_AUTO) val->format = conf->format; switch (conf->format) { case KS_CONFIG_JSON: switch (val->format) { case KS_CONFIG_JSON: json_object_put(val->conf_doc); if (!get_jval(conf, key, &val->conf_doc)) goto fail; return true; case KS_CONFIG_STRING: tmp = kshark_config_alloc(KS_CONFIG_AUTO); if (!tmp) goto fail; if (!get_jval(conf, key, &tmp->conf_doc)) goto fail; free(val->conf_doc); val->conf_doc = (char *) json_object_get_string(tmp->conf_doc); free(tmp); return true; default: fprintf(stderr, "Value format %d not supported\n", val->format); return false; } break; default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } return true; fail: fprintf(stderr, "Failed to get config. document.\n"); return false; } /** * @brief Create an empty Record Configuration document. The type description * is set to "kshark.config.record". * * @returns kshark_config_doc instance on success, otherwise NULL. Use * kshark_free_config_doc() to free the object. */ struct kshark_config_doc * kshark_record_config_new(enum kshark_config_formats format) { return kshark_config_new("kshark.config.record", format); } /** * @brief Create an empty Filter Configuration document. The type description * is set to "kshark.config.filter". * * @returns kshark_config_doc instance on success, otherwise NULL. Use * kshark_free_config_doc() to free the object. */ struct kshark_config_doc * kshark_filter_config_new(enum kshark_config_formats format) { return kshark_config_new("kshark.config.filter", format); } /** * @brief Create an empty Text Configuration document. The Text Configuration * documents do not use type descriptions. * * @returns kshark_config_doc instance on success, otherwise NULL. Use free() * to free the object. */ struct kshark_config_doc *kshark_string_config_alloc(void) { return kshark_config_alloc(KS_CONFIG_STRING); } static void json_del_if_exist(struct json_object *jobj, const char *key) { struct json_object *temp; if (json_object_object_get_ex(jobj, key, &temp)) json_object_object_del(jobj, key); } static bool kshark_json_type_check(struct json_object *jobj, const char *type) { struct json_object *jtype; const char *type_str; if (!json_object_object_get_ex(jobj, "type", &jtype)) return false; type_str = json_object_get_string(jtype); if (strcmp(type_str, type) != 0) return false; return true; } /** * @brief Check the type of a Configuration document and compare with an * expected value. * * @param conf: Input location for the kshark_config_doc instance. * @param type: Input location for the expected value of the Configuration * document type, e.g. "kshark.config.record" or * "kshark.config.filter". * * @returns True, if the document has the expected type, otherwise False. */ bool kshark_type_check(struct kshark_config_doc *conf, const char *type) { switch (conf->format) { case KS_CONFIG_JSON: return kshark_json_type_check(conf->conf_doc, type); default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } } static bool kshark_trace_file_to_json(const char *file, struct json_object *jobj) { struct json_object *jfile_name, *jtime; struct stat st; if (!file || !jobj) return false; if (stat(file, &st) != 0) { fprintf(stderr, "Unable to find file %s\n", file); return false; } jfile_name = json_object_new_string(file); jtime = json_object_new_int64(st.st_mtime); if (!jfile_name || !jtime) goto fail; json_object_object_add(jobj, "file", jfile_name); json_object_object_add(jobj, "time", jtime); return true; fail: fprintf(stderr, "Failed to allocate memory for json_object.\n"); json_object_put(jobj); json_object_put(jfile_name); json_object_put(jtime); return false; } /** * @brief Record the name of a trace data file and its timestamp into a * Configuration document. * * @param file: The name of the file. * @param format: Input location for the Configuration format identifier. * Currently only Json format is supported. * * @returns True on success, otherwise False. */ struct kshark_config_doc * kshark_export_trace_file(const char *file, enum kshark_config_formats format) { /* Create a new Configuration document. */ struct kshark_config_doc *conf = kshark_config_new("kshark.config.data", format); if (!conf) return NULL; switch (format) { case KS_CONFIG_JSON: kshark_trace_file_to_json(file, conf->conf_doc); return conf; default: fprintf(stderr, "Document format %d not supported\n", conf->format); return NULL; } } static bool kshark_trace_file_from_json(const char **file, struct json_object *jobj) { struct json_object *jfile_name, *jtime; const char *file_str; struct stat st; int64_t time; if (!jobj) return false; if (!kshark_json_type_check(jobj, "kshark.config.data") || !json_object_object_get_ex(jobj, "file", &jfile_name) || !json_object_object_get_ex(jobj, "time", &jtime)) { fprintf(stderr, "Failed to retrieve data file from json_object.\n"); return false; } file_str = json_object_get_string(jfile_name); time = json_object_get_int64(jtime); if (stat(file_str, &st) != 0) { fprintf(stderr, "Unable to find file %s\n", file_str); return false; } if (st.st_mtime != time) { fprintf(stderr,"Timestamp mismatch!\nFile %s", file_str); return false; } *file = file_str; return true; } /** * @brief Read the name of a trace data file and its timestamp from a * Configuration document and check if such a file exists. * If the file exists, open it. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns The name of the file on success, otherwise NULL. "conf" has * the ownership over the returned string. */ const char* kshark_import_trace_file(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf) { const char *file = NULL; switch (conf->format) { case KS_CONFIG_JSON: if (kshark_trace_file_from_json(&file, conf->conf_doc)) kshark_open(kshark_ctx, file); break; default: fprintf(stderr, "Document format %d not supported\n", conf->format); return NULL; } return file; } static bool kshark_model_to_json(struct kshark_trace_histo *histo, struct json_object *jobj) { struct json_object *jrange, *jmin, *jmax, *jn_bins; if (!histo || !jobj) return false; jrange = json_object_new_array(); jmin = json_object_new_int64(histo->min); jmax = json_object_new_int64(histo->max); jn_bins = json_object_new_int(histo->n_bins); if (!jrange || !jmin || !jmax || !jn_bins) goto fail; json_object_array_put_idx(jrange, 0, jmin); json_object_array_put_idx(jrange, 1, jmax); json_object_object_add(jobj, "range", jrange); json_object_object_add(jobj, "bins", jn_bins); return true; fail: fprintf(stderr, "Failed to allocate memory for json_object.\n"); json_object_put(jobj); json_object_put(jrange); json_object_put(jmin); json_object_put(jmax); json_object_put(jn_bins); return false; } /** * @brief Record the current configuration of the Vis. model into a * Configuration document. * Load the configuration of the Vis. model from a Configuration * document. * * @param histo: Input location for the Vis. model descriptor. * @param format: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True on success, otherwise False. */ struct kshark_config_doc * kshark_export_model(struct kshark_trace_histo *histo, enum kshark_config_formats format) { /* Create a new Configuration document. */ struct kshark_config_doc *conf = kshark_config_new("kshark.config.model", format); if (!conf) return NULL; switch (format) { case KS_CONFIG_JSON: kshark_model_to_json(histo, conf->conf_doc); return conf; default: fprintf(stderr, "Document format %d not supported\n", format); return NULL; } } static bool kshark_model_from_json(struct kshark_trace_histo *histo, struct json_object *jobj) { struct json_object *jrange, *jmin, *jmax, *jn_bins; uint64_t min, max; int n_bins; if (!histo || !jobj) return false; if (!kshark_json_type_check(jobj, "kshark.config.model") || !json_object_object_get_ex(jobj, "range", &jrange) || !json_object_object_get_ex(jobj, "bins", &jn_bins) || json_object_get_type(jrange) != json_type_array || json_object_array_length(jrange) != 2) goto fail; jmin = json_object_array_get_idx(jrange, 0); jmax = json_object_array_get_idx(jrange, 1); if (!jmin || !jmax) goto fail; min = json_object_get_int64(jmin); max = json_object_get_int64(jmax); n_bins = json_object_get_int(jn_bins); ksmodel_set_bining(histo, n_bins, min, max); if (histo->data && histo->data_size) ksmodel_fill(histo, histo->data, histo->data_size); return true; fail: fprintf(stderr, "Failed to load event filter from json_object.\n"); return false; } /** * @brief Load the configuration of the Vis. model from a Configuration * document. * * @param histo: Input location for the Vis. model descriptor. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True, if the model has been loaded. If the model configuration * document contains no data or in a case of an error, the function * returns False. */ bool kshark_import_model(struct kshark_trace_histo *histo, struct kshark_config_doc *conf) { switch (conf->format) { case KS_CONFIG_JSON: return kshark_model_from_json(histo, conf->conf_doc); default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } } static bool kshark_event_filter_to_json(struct tep_handle *pevent, struct tracecmd_filter_id *filter, const char *filter_name, struct json_object *jobj) { json_object *jfilter_data, *jevent, *jsystem, *jname; struct tep_event *event; int i, evt, *ids, nr_events; char *temp; jevent = jsystem = jname = NULL; /* * If this Json document already contains a description of the filter, * delete this description. */ json_del_if_exist(jobj, filter_name); /* Get the array of Ids to be fitered. */ ids = tracecmd_filter_ids(filter); if (!ids) return true; /* Create a Json array and fill the Id values into it. */ jfilter_data = json_object_new_array(); if (!jfilter_data) goto fail; nr_events = tep_get_events_count(pevent); for (i = 0; i < filter->count; ++i) { for (evt = 0; evt < nr_events; ++evt) { event = tep_get_event(pevent, evt); if (event->id == ids[i]) { jevent = json_object_new_object(); temp = event->system; jsystem = json_object_new_string(temp); temp = event->name; jname = json_object_new_string(temp); if (!jevent || !jsystem || !jname) goto fail; json_object_object_add(jevent, "system", jsystem); json_object_object_add(jevent, "name", jname); json_object_array_add(jfilter_data, jevent); break; } } } free(ids); /* Add the array of Ids to the filter config document. */ json_object_object_add(jobj, filter_name, jfilter_data); return true; fail: fprintf(stderr, "Failed to allocate memory for json_object.\n"); json_object_put(jfilter_data); json_object_put(jevent); json_object_put(jsystem); json_object_put(jname); free(ids); return false; } /** * @brief Record the current configuration of an Event Id filter into a * Configuration document. * * @param pevent: Input location for the Page event. * @param filter: Input location for an Id filter. * @param filter_name: The name of the filter to show up in the Json document. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True on success, otherwise False. */ bool kshark_export_event_filter(struct tep_handle *pevent, struct tracecmd_filter_id *filter, const char *filter_name, struct kshark_config_doc *conf) { switch (conf->format) { case KS_CONFIG_JSON: return kshark_event_filter_to_json(pevent, filter, filter_name, conf->conf_doc); default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } } static bool kshark_event_filter_from_json(struct tep_handle *pevent, struct tracecmd_filter_id *filter, const char *filter_name, struct json_object *jobj) { json_object *jfilter, *jevent, *jsystem, *jname; const char *system_str, *name_str; struct tep_event *event; int i, length; /* * Use the name of the filter to find the array of events associated * with this filter. Notice that the filter config document may * contain no data for this particular filter. */ if (!json_object_object_get_ex(jobj, filter_name, &jfilter)) return false; if (!kshark_json_type_check(jobj, "kshark.config.filter") || json_object_get_type(jfilter) != json_type_array) goto fail; /* Set the filter. */ length = json_object_array_length(jfilter); for (i = 0; i < length; ++i) { jevent = json_object_array_get_idx(jfilter, i); if (!json_object_object_get_ex(jevent, "system", &jsystem) || !json_object_object_get_ex(jevent, "name", &jname)) goto fail; system_str = json_object_get_string(jsystem); name_str = json_object_get_string(jname); event = tep_find_event_by_name(pevent, system_str, name_str); if (!event) goto fail; tracecmd_filter_id_add(filter, event->id); } return true; fail: fprintf(stderr, "Failed to load event filter from json_object.\n"); return false; } /** * @brief Load from Configuration document the configuration of an Event Id filter. * * @param pevent: Input location for the Page event. * @param filter: Input location for an Id filter. * @param filter_name: The name of the filter as showing up in the Config. * document. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True, if a filter has been loaded. If the filter configuration * document contains no data for this particular filter or in a case * of an error, the function returns False. */ bool kshark_import_event_filter(struct tep_handle *pevent, struct tracecmd_filter_id *filter, const char *filter_name, struct kshark_config_doc *conf) { switch (conf->format) { case KS_CONFIG_JSON: return kshark_event_filter_from_json(pevent, filter, filter_name, conf->conf_doc); default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } } static bool kshark_filter_array_to_json(struct tracecmd_filter_id *filter, const char *filter_name, struct json_object *jobj) { json_object *jfilter_data, *jpid = NULL; int i, *ids; /* * If this Json document already contains a description of the filter, * delete this description. */ json_del_if_exist(jobj, filter_name); /* Get the array of Ids to be filtered. */ ids = tracecmd_filter_ids(filter); if (!ids) return true; /* Create a Json array and fill the Id values into it. */ jfilter_data = json_object_new_array(); if (!jfilter_data) goto fail; for (i = 0; i < filter->count; ++i) { jpid = json_object_new_int(ids[i]); if (!jpid) goto fail; json_object_array_add(jfilter_data, jpid); } free(ids); /* Add the array of Ids to the filter config document. */ json_object_object_add(jobj, filter_name, jfilter_data); return true; fail: fprintf(stderr, "Failed to allocate memory for json_object.\n"); json_object_put(jfilter_data); json_object_put(jpid); free(ids); return false; } /** * @brief Record the current configuration of a simple Id filter into a * Configuration document. * * @param filter: Input location for an Id filter. * @param filter_name: The name of the filter to show up in the Json document. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True on success, otherwise False. */ bool kshark_export_filter_array(struct tracecmd_filter_id *filter, const char *filter_name, struct kshark_config_doc *conf) { switch (conf->format) { case KS_CONFIG_JSON: return kshark_filter_array_to_json(filter, filter_name, conf->conf_doc); default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } } static bool kshark_filter_array_from_json(struct tracecmd_filter_id *filter, const char *filter_name, struct json_object *jobj) { json_object *jfilter, *jpid; int i, length; /* * Use the name of the filter to find the array of events associated * with this filter. Notice that the filter config document may * contain no data for this particular filter. */ if (!json_object_object_get_ex(jobj, filter_name, &jfilter)) return false; if (!kshark_json_type_check(jobj, "kshark.config.filter") || json_object_get_type(jfilter) != json_type_array) goto fail; /* Set the filter. */ length = json_object_array_length(jfilter); for (i = 0; i < length; ++i) { jpid = json_object_array_get_idx(jfilter, i); if (!jpid) goto fail; tracecmd_filter_id_add(filter, json_object_get_int(jpid)); } return true; fail: fprintf(stderr, "Failed to load task filter from json_object.\n"); return false; } /** * @brief Load from Configuration document the configuration of a simple * Id filter. * * @param filter: Input location for an Id filter. * @param filter_name: The name of the filter as showing up in the Config. * document. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True, if a filter has been loaded. If the filter configuration * document contains no data for this particular filter or in a case * of an error, the function returns False. */ bool kshark_import_filter_array(struct tracecmd_filter_id *filter, const char *filter_name, struct kshark_config_doc *conf) { switch (conf->format) { case KS_CONFIG_JSON: return kshark_filter_array_from_json(filter, filter_name, conf->conf_doc); default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } } static bool kshark_adv_filters_to_json(struct kshark_context *kshark_ctx, struct json_object *jobj) { struct tep_event_filter *adv_filter = kshark_ctx->advanced_event_filter; json_object *jfilter_data, *jevent, *jsystem, *jname, *jfilter; struct tep_event **events; char *str; int i; jevent = jsystem = jname = jfilter = NULL; /* * If this Json document already contains a description of the model, * delete this description. */ json_del_if_exist(jobj, KS_ADV_EVENT_FILTER_NAME); if (!kshark_ctx->advanced_event_filter || !kshark_ctx->advanced_event_filter->filters) return true; /* Create a Json array and fill the Id values into it. */ jfilter_data = json_object_new_array(); if (!jfilter_data) goto fail; events = tep_list_events(kshark_ctx->pevent, TEP_EVENT_SORT_SYSTEM); if (!events) return false; for (i = 0; events[i]; i++) { str = tep_filter_make_string(adv_filter, events[i]->id); if (!str) continue; jevent = json_object_new_object(); jsystem = json_object_new_string(events[i]->system); jname = json_object_new_string(events[i]->name); jfilter = json_object_new_string(str); if (!jevent || !jsystem || !jname || !jfilter) goto fail; json_object_object_add(jevent, "system", jsystem); json_object_object_add(jevent, "name", jname); json_object_object_add(jevent, "condition", jfilter); json_object_array_add(jfilter_data, jevent); } /* Add the array of advanced filters to the filter config document. */ json_object_object_add(jobj, KS_ADV_EVENT_FILTER_NAME, jfilter_data); return true; fail: fprintf(stderr, "Failed to allocate memory for json_object.\n"); json_object_put(jfilter_data); json_object_put(jevent); json_object_put(jsystem); json_object_put(jname); json_object_put(jfilter); return false; } /** * @brief Record the current configuration of the advanced filter into a * Configuration document. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. If NULL, a new Adv. Filter * Configuration document will be created. * * @returns True on success, otherwise False. */ bool kshark_export_adv_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc **conf) { if (!*conf) *conf = kshark_filter_config_new(KS_CONFIG_JSON); if (!*conf) return false; switch ((*conf)->format) { case KS_CONFIG_JSON: return kshark_adv_filters_to_json(kshark_ctx, (*conf)->conf_doc); default: fprintf(stderr, "Document format %d not supported\n", (*conf)->format); return false; } } static bool kshark_adv_filters_from_json(struct kshark_context *kshark_ctx, struct json_object *jobj) { struct tep_event_filter *adv_filter = kshark_ctx->advanced_event_filter; json_object *jfilter, *jsystem, *jname, *jcond; int i, length, n, ret = 0; char *filter_str = NULL; /* * Use the name of the filter to find the array of events associated * with this filter. Notice that the filter config document may * contain no data for this particular filter. */ if (!json_object_object_get_ex(jobj, KS_ADV_EVENT_FILTER_NAME, &jfilter)) return false; if (!kshark_json_type_check(jobj, "kshark.config.filter") || json_object_get_type(jfilter) != json_type_array) goto fail; /* Set the filter. */ length = json_object_array_length(jfilter); for (i = 0; i < length; ++i) { jfilter = json_object_array_get_idx(jfilter, i); if (!json_object_object_get_ex(jfilter, "system", &jsystem) || !json_object_object_get_ex(jfilter, "name", &jname) || !json_object_object_get_ex(jfilter, "condition", &jcond)) goto fail; n = asprintf(&filter_str, "%s/%s:%s", json_object_get_string(jsystem), json_object_get_string(jname), json_object_get_string(jcond)); if (n <= 0) { filter_str = NULL; goto fail; } ret = tep_filter_add_filter_str(adv_filter, filter_str); if (ret < 0) goto fail; } return true; fail: fprintf(stderr, "Failed to laod Advanced filters.\n"); if (ret < 0) { char error_str[200]; int error_status = tep_strerror(kshark_ctx->pevent, ret, error_str, sizeof(error_str)); if (error_status == 0) fprintf(stderr, "filter failed due to: %s\n", error_str); } free(filter_str); return false; } /** * @brief Load from Configuration document the configuration of the advanced * filter. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True, if a filter has been loaded. If the filter configuration * document contains no data for the Adv. filter or in a case of * an error, the function returns False. */ bool kshark_import_adv_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf) { switch (conf->format) { case KS_CONFIG_JSON: return kshark_adv_filters_from_json(kshark_ctx, conf->conf_doc); default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } } static bool kshark_user_mask_to_json(struct kshark_context *kshark_ctx, struct json_object *jobj) { uint8_t mask = kshark_ctx->filter_mask; json_object *jmask; jmask = json_object_new_int((int) mask); if (!jmask) return false; /* Add the mask to the filter config document. */ json_object_object_add(jobj, KS_USER_FILTER_MASK_NAME, jmask); return true; } /** * @brief Record the current value of the the user-specified filter mask into * a Configuration document. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. If NULL, a new Adv. Filter * Configuration document will be created. * * @returns True on success, otherwise False. */ bool kshark_export_user_mask(struct kshark_context *kshark_ctx, struct kshark_config_doc **conf) { if (!*conf) *conf = kshark_filter_config_new(KS_CONFIG_JSON); if (!*conf) return false; switch ((*conf)->format) { case KS_CONFIG_JSON: return kshark_user_mask_to_json(kshark_ctx, (*conf)->conf_doc); default: fprintf(stderr, "Document format %d not supported\n", (*conf)->format); return false; } } static bool kshark_user_mask_from_json(struct kshark_context *kshark_ctx, struct json_object *jobj) { json_object *jmask; uint8_t mask; if (!kshark_json_type_check(jobj, "kshark.config.filter")) return false; /* * Use the name of the filter to find the value of the filter maks. * Notice that the filter config document may contain no data for * the mask. */ if (!json_object_object_get_ex(jobj, KS_USER_FILTER_MASK_NAME, &jmask)) return false; mask = json_object_get_int(jmask); kshark_ctx->filter_mask = mask; return true; } /** * @brief Load from Configuration document the value of the user-specified * filter mask. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True, if a mask has been loaded. If the filter configuration * document contains no data for the mask or in a case of an error, * the function returns False. */ bool kshark_import_user_mask(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf) { switch (conf->format) { case KS_CONFIG_JSON: return kshark_user_mask_from_json(kshark_ctx, conf->conf_doc); default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } } static bool filter_is_set(struct tracecmd_filter_id *filter) { return filter && filter->count; } /** * @brief Record the current configuration of "show task" and "hide task" * filters into a Json document. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. If NULL, a new Filter * Configuration document will be created. * * @returns True, if a filter has been recorded. If both filters contain * no Id values or in a case of an error, the function returns False. */ bool kshark_export_all_event_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc **conf) { bool ret = true; if (!*conf) *conf = kshark_filter_config_new(KS_CONFIG_JSON); if (!*conf) return false; /* Save a filter only if it contains Id values. */ if (filter_is_set(kshark_ctx->show_event_filter)) ret &= kshark_export_event_filter(kshark_ctx->pevent, kshark_ctx->show_event_filter, KS_SHOW_EVENT_FILTER_NAME, *conf); if (filter_is_set(kshark_ctx->hide_event_filter)) ret &= kshark_export_event_filter(kshark_ctx->pevent, kshark_ctx->hide_event_filter, KS_HIDE_EVENT_FILTER_NAME, *conf); return ret; } /** * @brief Record the current configuration of "show task" and "hide task" * filters into a Configuration document. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. If NULL, a new Filter * Configuration document will be created. * * @returns True, if a filter has been recorded. If both filters contain * no Id values or in a case of an error, the function returns False. */ bool kshark_export_all_task_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc **conf) { bool ret = true; if (!*conf) *conf = kshark_filter_config_new(KS_CONFIG_JSON); if (!*conf) return false; /* Save a filter only if it contains Id values. */ if (filter_is_set(kshark_ctx->show_task_filter)) ret &= kshark_export_filter_array(kshark_ctx->show_task_filter, KS_SHOW_TASK_FILTER_NAME, *conf); if (filter_is_set(kshark_ctx->hide_task_filter)) ret &= kshark_export_filter_array(kshark_ctx->hide_task_filter, KS_HIDE_TASK_FILTER_NAME, *conf); return ret; } /** * @brief Record the current configuration of "show cpu" and "hide cpu" * filters into a Configuration document. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. If NULL, a new Filter * Configuration document will be created. * * @returns True, if a filter has been recorded. If both filters contain * no Id values or in a case of an error, the function returns False. */ bool kshark_export_all_cpu_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc **conf) { bool ret = true; if (!*conf) *conf = kshark_filter_config_new(KS_CONFIG_JSON); if (!*conf) return false; /* Save a filter only if it contains Id values. */ if (filter_is_set(kshark_ctx->show_task_filter)) ret &= kshark_export_filter_array(kshark_ctx->show_cpu_filter, KS_SHOW_CPU_FILTER_NAME, *conf); if (filter_is_set(kshark_ctx->hide_task_filter)) ret &= kshark_export_filter_array(kshark_ctx->hide_cpu_filter, KS_HIDE_CPU_FILTER_NAME, *conf); return ret; } /** * @brief Load from a Configuration document the configuration of "show event" * and "hide event" filters. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True, if a filter has been loaded. If the filter configuration * document contains no data for any event filter or in a case * of an error, the function returns False. */ bool kshark_import_all_event_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf) { bool ret = false; ret |= kshark_import_event_filter(kshark_ctx->pevent, kshark_ctx->hide_event_filter, KS_HIDE_EVENT_FILTER_NAME, conf); ret |= kshark_import_event_filter(kshark_ctx->pevent, kshark_ctx->show_event_filter, KS_SHOW_EVENT_FILTER_NAME, conf); return ret; } /** * @brief Load from Configuration document the configuration of "show task" * and "hide task" filters. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True, if a filter has been loaded. If the filter configuration * document contains no data for any task filter or in a case of an * error, the function returns False. */ bool kshark_import_all_task_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf) { bool ret = false; ret |= kshark_import_filter_array(kshark_ctx->hide_task_filter, KS_HIDE_TASK_FILTER_NAME, conf); ret |= kshark_import_filter_array(kshark_ctx->show_task_filter, KS_SHOW_TASK_FILTER_NAME, conf); return ret; } /** * @brief Load from Configuration document the configuration of "show cpu" * and "hide cpu" filters. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True, if a filter has been loaded. If the filter configuration * document contains no data for any cpu filter or in a case of an * error, the function returns False. */ bool kshark_import_all_cpu_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf) { bool ret = false; ret |= kshark_import_filter_array(kshark_ctx->hide_cpu_filter, KS_HIDE_CPU_FILTER_NAME, conf); ret |= kshark_import_filter_array(kshark_ctx->show_cpu_filter, KS_SHOW_CPU_FILTER_NAME, conf); return ret; } /** * @brief Create a Filter Configuration document containing the current * configuration of all filters. * * @param kshark_ctx: Input location for session context pointer. * @param format: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns kshark_config_doc instance on success, otherwise NULL. Use * kshark_free_config_doc() to free the object. */ struct kshark_config_doc * kshark_export_all_filters(struct kshark_context *kshark_ctx, enum kshark_config_formats format) { /* Create a new Configuration document. */ struct kshark_config_doc *conf = kshark_filter_config_new(format); /* Save a filter only if it contains Id values. */ if (!conf || !kshark_export_all_event_filters(kshark_ctx, &conf) || !kshark_export_all_task_filters(kshark_ctx, &conf) || !kshark_export_all_cpu_filters(kshark_ctx, &conf) || !kshark_export_user_mask(kshark_ctx, &conf) || !kshark_export_adv_filters(kshark_ctx, &conf)) { kshark_free_config_doc(conf); return NULL; } return conf; } /** * @brief Load from a Configuration document the configuration of all filters. * * @param kshark_ctx: Input location for session context pointer. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True, if a filter has been loaded. If the filter configuration * document contains no data for any filter or in a case of an error, * the function returns False. */ bool kshark_import_all_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf) { bool ret; ret = kshark_import_all_task_filters(kshark_ctx, conf); ret |= kshark_import_all_cpu_filters(kshark_ctx, conf); ret |= kshark_import_all_event_filters(kshark_ctx, conf); ret |= kshark_import_user_mask(kshark_ctx, conf); ret |= kshark_import_adv_filters(kshark_ctx, conf); return ret; } static bool kshark_save_json_file(const char *file_name, struct json_object *jobj) { int flags; /* Save the file in a human-readable form. */ flags = JSON_C_TO_STRING_SPACED | JSON_C_TO_STRING_PRETTY; if (json_object_to_file_ext(file_name, jobj, flags) == 0) return true; return false; } /** * @brief Save a Configuration document into a file. * * @param file_name: The name of the file. * @param conf: Input location for the kshark_config_doc instance. Currently * only Json format is supported. * * @returns True on success, otherwise False. */ bool kshark_save_config_file(const char *file_name, struct kshark_config_doc *conf) { switch (conf->format) { case KS_CONFIG_JSON: return kshark_save_json_file(file_name, conf->conf_doc); default: fprintf(stderr, "Document format %d not supported\n", conf->format); return false; } } static struct json_object *kshark_open_json_file(const char *file_name, const char *type) { struct json_object *jobj, *var; const char *type_var; jobj = json_object_from_file(file_name); if (!jobj) return NULL; /* Get the type of the document. */ if (!json_object_object_get_ex(jobj, "type", &var)) goto fail; type_var = json_object_get_string(var); if (strcmp(type, type_var) != 0) goto fail; return jobj; fail: /* The document has a wrong type. */ fprintf(stderr, "Failed to open Json file %s.\n", file_name); fprintf(stderr, "The document has a wrong type.\n"); json_object_put(jobj); return NULL; } static const char *get_ext(const char *filename) { const char *dot = strrchr(filename, '.'); if(!dot) return "unknown"; return dot + 1; } /** * @brief Open for read a Configuration file and check if it has the * expected type. * * @param file_name: The name of the file. Currently only Json files are * supported. * @param type: String describing the expected type of the document, * e.g. "kshark.config.record" or "kshark.config.filter". * * @returns kshark_config_doc instance on success, or NULL on failure. Use * kshark_free_config_doc() to free the object. */ struct kshark_config_doc *kshark_open_config_file(const char *file_name, const char *type) { struct kshark_config_doc *conf = NULL; if (strcmp(get_ext(file_name), "json") == 0) { struct json_object *jobj = kshark_open_json_file(file_name, type); if (jobj) { conf = malloc(sizeof(*conf)); conf->conf_doc = jobj; conf->format = KS_CONFIG_JSON; } } return conf; } trace-cmd-2.8.3/kernel-shark/src/libkshark-model.c000066400000000000000000001050721351617527000217700ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file libkshark-model.c * @brief Visualization model for FTRACE (trace-cmd) data. */ // C #include #include // KernelShark #include "libkshark-model.h" /** The index of the Upper Overflow bin. */ #define UOB(histo) (histo->n_bins) /** The index of the Lower Overflow bin. */ #define LOB(histo) (histo->n_bins + 1) /** For all bins. */ # define ALLB(histo) LOB(histo) /** * @brief Initialize the Visualization model. * * @param histo: Input location for the model descriptor. */ void ksmodel_init(struct kshark_trace_histo *histo) { /* * Initialize an empty histo. The histo will have no bins and will * contain no data. */ histo->bin_size = 0; histo->min = 0; histo->max = 0; histo->n_bins = 0; histo->bin_count = NULL; histo->map = NULL; } /** * @brief Clear (reset) the Visualization model. * * @param histo: Input location for the model descriptor. */ void ksmodel_clear(struct kshark_trace_histo *histo) { /* Reset the histo. It will have no bins and will contain no data. */ free(histo->map); free(histo->bin_count); ksmodel_init(histo); } static void ksmodel_reset_bins(struct kshark_trace_histo *histo, size_t first, size_t last) { /* * Reset the content of the bins. * Be careful here! Resetting the entire array of signed integers with * memset() will work only for values of "0" and "-1". Hence * KS_EMPTY_BIN is expected to be "-1". */ memset(&histo->map[first], KS_EMPTY_BIN, (last - first + 1) * sizeof(histo->map[0])); memset(&histo->bin_count[first], 0, (last - first + 1) * sizeof(histo->bin_count[0])); } static bool ksmodel_histo_alloc(struct kshark_trace_histo *histo, size_t n) { free(histo->bin_count); free(histo->map); /* Create bins. Two overflow bins are added. */ histo->map = calloc(n + 2, sizeof(*histo->map)); histo->bin_count = calloc(n + 2, sizeof(*histo->bin_count)); if (!histo->map || !histo->bin_count) { ksmodel_clear(histo); fprintf(stderr, "Failed to allocate memory for a histo.\n"); return false; } histo->n_bins = n; return true; } static void ksmodel_set_in_range_bining(struct kshark_trace_histo *histo, size_t n, uint64_t min, uint64_t max, bool force_in_range) { uint64_t corrected_range, delta_range, range = max - min; struct kshark_entry *last; /* The size of the bin must be >= 1, hence the range must be >= n. */ if (n == 0 || range < n) { range = n; max = min + n; } /* * If the number of bins changes, allocate memory for the descriptor of * the model. */ if (n != histo->n_bins) { if (!ksmodel_histo_alloc(histo, n)) { ksmodel_clear(histo); return; } } /* Reset the content of all bins (including overflow bins) to zero. */ ksmodel_reset_bins(histo, 0, ALLB(histo)); if (range % n == 0) { /* * The range is multiple of the number of bin and needs no * adjustment. This is very unlikely to happen but still ... */ histo->min = min; histo->max = max; histo->bin_size = range / n; } else { /* * The range needs adjustment. The new range will be slightly * bigger, compared to the requested one. */ histo->bin_size = range / n + 1; corrected_range = histo->bin_size * n; delta_range = corrected_range - range; histo->min = min - delta_range / 2; histo->max = histo->min + corrected_range; if (!force_in_range) return; /* * Make sure that the new range doesn't go outside of the time * interval of the dataset. */ last = histo->data[histo->data_size - 1]; if (histo->min < histo->data[0]->ts) { histo->min = histo->data[0]->ts; histo->max = histo->min + corrected_range; } else if (histo->max > last->ts) { histo->max = last->ts; histo->min = histo->max - corrected_range; } } } /** * @brief Prepare the bining of the Visualization model. * * @param histo: Input location for the model descriptor. * @param n: Number of bins. * @param min: Lower edge of the time-window to be visualized. * @param max: Upper edge of the time-window to be visualized. */ void ksmodel_set_bining(struct kshark_trace_histo *histo, size_t n, uint64_t min, uint64_t max) { ksmodel_set_in_range_bining(histo, n, min, max, false); } static size_t ksmodel_set_lower_edge(struct kshark_trace_histo *histo) { /* * Find the index of the first entry inside the range * (timestamp >= min). Note that the value of "min" is considered * inside the range. */ ssize_t row = kshark_find_entry_by_time(histo->min, histo->data, 0, histo->data_size - 1); assert(row != BSEARCH_ALL_SMALLER); if (row == BSEARCH_ALL_GREATER || row == 0) { /* Lower Overflow bin is empty. */ histo->map[LOB(histo)] = KS_EMPTY_BIN; histo->bin_count[LOB(histo)] = 0; row = 0; } else { /* * The first entry inside the range is not the first entry of * the dataset. This means that the Lower Overflow bin contains * data. */ /* Lower Overflow bin starts at "0". */ histo->map[LOB(histo)] = 0; /* * The number of entries inside the Lower Overflow bin is equal * to the index of the first entry inside the range. */ histo->bin_count[LOB(histo)] = row; } /* * Now check if the first entry inside the range falls into the first * bin. */ if (histo->data[row]->ts < histo->min + histo->bin_size) { /* * It is inside the first bin. Set the beginning * of the first bin. */ histo->map[0] = row; } else { /* The first bin is empty. */ histo->map[0] = KS_EMPTY_BIN; } return row; } static size_t ksmodel_set_upper_edge(struct kshark_trace_histo *histo) { /* * Find the index of the first entry outside the range * (timestamp > max). Note that the value of "max" is considered inside * the range. Remember that kshark_find_entry_by_time returns the first * entry which is equal or greater than the reference time. */ ssize_t row = kshark_find_entry_by_time(histo->max + 1, histo->data, 0, histo->data_size - 1); assert(row != BSEARCH_ALL_GREATER); if (row == BSEARCH_ALL_SMALLER) { /* Upper Overflow bin is empty. */ histo->map[UOB(histo)] = KS_EMPTY_BIN; histo->bin_count[UOB(histo)] = 0; } else { /* * The Upper Overflow bin contains data. Set its beginning and * the number of entries. */ histo->map[UOB(histo)] = row; histo->bin_count[UOB(histo)] = histo->data_size - row; } return row; } static void ksmodel_set_next_bin_edge(struct kshark_trace_histo *histo, size_t bin, size_t last_row) { size_t time, next_bin = bin + 1; ssize_t row; /* Calculate the beginning of the next bin. */ time = histo->min + next_bin * histo->bin_size; /* * Find the index of the first entry inside * the next bin (timestamp > time). */ row = kshark_find_entry_by_time(time, histo->data, last_row, histo->data_size - 1); if (row < 0 || histo->data[row]->ts >= time + histo->bin_size) { /* The bin is empty. */ histo->map[next_bin] = KS_EMPTY_BIN; return; } /* Set the index of the first entry. */ histo->map[next_bin] = row; } /* * Fill in the bin_count array, which maps the number of entries within each * bin. */ static void ksmodel_set_bin_counts(struct kshark_trace_histo *histo) { int i = 0, prev_not_empty; ssize_t count_tmp = 0; histo->tot_count = 0; memset(&histo->bin_count[0], 0, (histo->n_bins) * sizeof(histo->bin_count[0])); /* * Find the first bin which contains data. Start by checking the Lower * Overflow bin. */ if (histo->map[LOB(histo)] != KS_EMPTY_BIN) { prev_not_empty = LOB(histo); } else { /* Loop till the first non-empty bin. */ while (histo->map[i] < 0 && i < histo->n_bins) { ++i; } prev_not_empty = i++; } /* * Starting from the first not empty bin, loop over all bins and fill * in the bin_count array to hold the number of entries in each bin. */ for (; i < histo->n_bins; ++i) { if (histo->map[i] != KS_EMPTY_BIN) { /* * The current bin is not empty, take its data row and * subtract it from the data row of the previous not * empty bin, which will give us the number of data * rows in the "prev_not_empty" bin. */ count_tmp = histo->map[i] - histo->map[prev_not_empty]; /* * We will do a sanity check. The number of data rows * in the previous not empty bin must be greater than * zero. */ assert(count_tmp > 0); histo->bin_count[prev_not_empty] = count_tmp; if (prev_not_empty != LOB(histo)) histo->tot_count += count_tmp; prev_not_empty = i; } } /* Check if the Upper Overflow bin contains data. */ if (histo->map[UOB(histo)] == KS_EMPTY_BIN) { /* * The Upper Overflow bin is empty. Use the size of the dataset * to calculate the content of the previouse not empty bin. */ count_tmp = histo->data_size - histo->map[prev_not_empty]; } else { /* * Use the index of the first entry inside the Upper Overflow * bin to calculate the content of the previouse not empty * bin. */ count_tmp = histo->map[UOB(histo)] - histo->map[prev_not_empty]; } /* * We will do a sanity check. The number of data rows in the last not * empty bin must be greater than zero. */ assert(count_tmp >= 0); histo->tot_count += histo->bin_count[prev_not_empty] = count_tmp; } /** * @brief Provide the Visualization model with data. Calculate the current * state of the model. * * @param histo: Input location for the model descriptor. * @param data: Input location for the trace data. * @param n: Number of bins. */ void ksmodel_fill(struct kshark_trace_histo *histo, struct kshark_entry **data, size_t n) { size_t last_row = 0; int bin; histo->data_size = n; histo->data = data; if (histo->n_bins == 0 || histo->bin_size == 0 || histo->data_size == 0) { /* * Something is wrong with this histo. * Most likely the binning is not set. */ ksmodel_clear(histo); fprintf(stderr, "Unable to fill the model with data.\n"); fprintf(stderr, "Try to set the bining of the model first.\n"); return; } /* Set the Lower Overflow bin */ ksmodel_set_lower_edge(histo); /* * Loop over the dataset and set the beginning of all individual bins. */ for (bin = 0; bin < histo->n_bins; ++bin) { ksmodel_set_next_bin_edge(histo, bin, last_row); if (histo->map[bin + 1] > 0) last_row = histo->map[bin + 1]; } /* Set the Upper Overflow bin. */ ksmodel_set_upper_edge(histo); /* Calculate the number of entries in each bin. */ ksmodel_set_bin_counts(histo); } /** * @brief Get the total number of entries in a given bin. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * * @returns The number of entries in this bin. */ size_t ksmodel_bin_count(struct kshark_trace_histo *histo, int bin) { if (bin >= 0 && bin < histo->n_bins) return histo->bin_count[bin]; if (bin == UPPER_OVERFLOW_BIN) return histo->bin_count[UOB(histo)]; if (bin == LOWER_OVERFLOW_BIN) return histo->bin_count[LOB(histo)]; return 0; } /** * @brief Shift the time-window of the model forward. Recalculate the current * state of the model. * * @param histo: Input location for the model descriptor. * @param n: Number of bins to shift. */ void ksmodel_shift_forward(struct kshark_trace_histo *histo, size_t n) { size_t last_row = 0; int bin; if (!histo->data_size) return; if (histo->map[UOB(histo)] == KS_EMPTY_BIN) { /* * The Upper Overflow bin is empty. This means that we are at * the upper edge of the dataset already. Do nothing in this * case. */ return; } histo->min += n * histo->bin_size; histo->max += n * histo->bin_size; if (n >= histo->n_bins) { /* * No overlap between the new and the old ranges. Recalculate * all bins from scratch. First calculate the new range. */ ksmodel_set_bining(histo, histo->n_bins, histo->min, histo->max); ksmodel_fill(histo, histo->data, histo->data_size); return; } /* Set the new Lower Overflow bin. */ ksmodel_set_lower_edge(histo); /* * Copy the the mapping indexes of all overlaping bins starting from * bin "0" of the new histo. Note that the number of overlaping bins * is histo->n_bins - n. * We will do a sanity check. ksmodel_set_lower_edge() sets map[0] * index of the new histo. This index should then be equal to map[n] * index of the old histo. */ assert (histo->map[0] == histo->map[n]); memmove(&histo->map[0], &histo->map[n], sizeof(histo->map[0]) * (histo->n_bins - n)); /* * Calculate only the content of the new (non-overlapping) bins. * Start from the last copied bin and set the edge of each consecutive * bin. */ bin = histo->n_bins - n - 1; for (; bin < histo->n_bins - 1; ++bin) { /* * Note that this function will set the bin having index * "bin + 1". */ ksmodel_set_next_bin_edge(histo, bin, last_row); if (histo->map[bin + 1] > 0) last_row = histo->map[bin + 1]; } /* * Set the new Upper Overflow bin and calculate the number of entries * in each bin. */ ksmodel_set_upper_edge(histo); ksmodel_set_bin_counts(histo); } /** * @brief Shift the time-window of the model backward. Recalculate the current * state of the model. * * @param histo: Input location for the model descriptor. * @param n: Number of bins to shift. */ void ksmodel_shift_backward(struct kshark_trace_histo *histo, size_t n) { size_t last_row = 0; int bin; if (!histo->data_size) return; if (histo->map[LOB(histo)] == KS_EMPTY_BIN) { /* * The Lower Overflow bin is empty. This means that we are at * the Lower edge of the dataset already. Do nothing in this * case. */ return; } histo->min -= n * histo->bin_size; histo->max -= n * histo->bin_size; if (n >= histo->n_bins) { /* * No overlap between the new and the old range. Recalculate * all bins from scratch. First calculate the new range. */ ksmodel_set_bining(histo, histo->n_bins, histo->min, histo->max); ksmodel_fill(histo, histo->data, histo->data_size); return; } /* * Copy the mapping indexes of all overlaping bins starting from * bin "0" of the old histo. Note that the number of overlaping bins * is histo->n_bins - n. */ memmove(&histo->map[n], &histo->map[0], sizeof(histo->map[0]) * (histo->n_bins - n)); /* Set the new Lower Overflow bin. */ ksmodel_set_lower_edge(histo); /* Calculate only the content of the new (non-overlapping) bins. */ for (bin = 0; bin < n - 1; ++bin) { /* * Note that this function will set the bin having index * "bin + 1". */ ksmodel_set_next_bin_edge(histo, bin, last_row); if (histo->map[bin + 1] > 0) last_row = histo->map[bin + 1]; } /* * Set the new Upper Overflow bin and calculate the number of entries * in each bin. */ ksmodel_set_upper_edge(histo); ksmodel_set_bin_counts(histo); } /** * @brief Move the time-window of the model to a given location. Recalculate * the current state of the model. * * @param histo: Input location for the model descriptor. * @param ts: position in time to be visualized. */ void ksmodel_jump_to(struct kshark_trace_histo *histo, size_t ts) { size_t min, max, range_min; if (ts > histo->min && ts < histo->max) { /* * The new position is already inside the range. * Do nothing in this case. */ return; } /* * Calculate the new range without changing the size and the number * of bins. */ min = ts - histo->n_bins * histo->bin_size / 2; /* Make sure that the range does not go outside of the dataset. */ if (min < histo->data[0]->ts) { min = histo->data[0]->ts; } else { range_min = histo->data[histo->data_size - 1]->ts - histo->n_bins * histo->bin_size; if (min > range_min) min = range_min; } max = min + histo->n_bins * histo->bin_size; /* Use the new range to recalculate all bins from scratch. */ ksmodel_set_bining(histo, histo->n_bins, min, max); ksmodel_fill(histo, histo->data, histo->data_size); } static void ksmodel_zoom(struct kshark_trace_histo *histo, double r, int mark, bool zoom_in) { size_t range, min, max, delta_min; double delta_tot; if (!histo->data_size) return; /* * If the marker is not set, assume that the focal point of the zoom * is the center of the range. */ if (mark < 0) mark = histo->n_bins / 2; range = histo->max - histo->min; /* * Avoid overzooming. If needed, adjust the Scale factor to a the value * which provides bin_size >= 5. */ if (zoom_in && (size_t) (range * (1. - r)) < histo->n_bins * 5) r = 1. - (histo->n_bins * 5.) / range; /* * Now calculate the new range of the histo. Use the bin of the marker * as a focal point for the zoomout. With this the maker will stay * inside the same bin in the new histo. * * First we set delta_tot to increase by the percentage requested (r). * Then we make delta_min equal to a percentage of delta_tot based on * where the position of the mark is. After this we add / subtract the * original min by the delta_min and subtract / add the max by * delta_tot - delta_min. */ delta_tot = range * r; if (mark == (int)histo->n_bins - 1) delta_min = delta_tot; else delta_min = delta_tot * mark / histo->n_bins; min = zoom_in ? histo->min + delta_min : histo->min - delta_min; max = zoom_in ? histo->max - (size_t) delta_tot + delta_min : histo->max + (size_t) delta_tot - delta_min; /* Make sure the new range doesn't go outside of the dataset. */ if (min < histo->data[0]->ts) min = histo->data[0]->ts; if (max > histo->data[histo->data_size - 1]->ts) max = histo->data[histo->data_size - 1]->ts; /* * Use the new range to recalculate all bins from scratch. Enforce * "In Range" adjustment of the range of the model, in order to avoid * slowly drifting outside of the data-set in the case when the very * first or the very last entry is used as a focal point. */ ksmodel_set_in_range_bining(histo, histo->n_bins, min, max, true); ksmodel_fill(histo, histo->data, histo->data_size); } /** * @brief Extend the time-window of the model. Recalculate the current state * of the model. * * @param histo: Input location for the model descriptor. * @param r: Scale factor of the zoom-out. * @param mark: Focus point of the zoom-out. */ void ksmodel_zoom_out(struct kshark_trace_histo *histo, double r, int mark) { ksmodel_zoom(histo, r, mark, false); } /** * @brief Shrink the time-window of the model. Recalculate the current state * of the model. * * @param histo: Input location for the model descriptor. * @param r: Scale factor of the zoom-in. * @param mark: Focus point of the zoom-in. */ void ksmodel_zoom_in(struct kshark_trace_histo *histo, double r, int mark) { ksmodel_zoom(histo, r, mark, true); } /** * @brief Get the index of the first entry in a given bin. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * * @returns Index of the first entry in this bin. If the bin is empty the * function returns negative error identifier (KS_EMPTY_BIN). */ ssize_t ksmodel_first_index_at_bin(struct kshark_trace_histo *histo, int bin) { if (bin >= 0 && bin < (int) histo->n_bins) return histo->map[bin]; if (bin == UPPER_OVERFLOW_BIN) return histo->map[UOB(histo)]; if (bin == LOWER_OVERFLOW_BIN) return histo->map[LOB(histo)]; return KS_EMPTY_BIN; } /** * @brief Get the index of the last entry in a given bin. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * * @returns Index of the last entry in this bin. If the bin is empty the * function returns negative error identifier (KS_EMPTY_BIN). */ ssize_t ksmodel_last_index_at_bin(struct kshark_trace_histo *histo, int bin) { ssize_t index = ksmodel_first_index_at_bin(histo, bin); size_t count = ksmodel_bin_count(histo, bin); if (index >= 0 && count) index += count - 1; return index; } static bool ksmodel_is_visible(struct kshark_entry *e) { if ((e->visible & KS_GRAPH_VIEW_FILTER_MASK) && (e->visible & KS_EVENT_VIEW_FILTER_MASK)) return true; return false; } static struct kshark_entry_request * ksmodel_entry_front_request_alloc(struct kshark_trace_histo *histo, int bin, bool vis_only, matching_condition_func func, int val) { size_t first, n; /* Get the number of entries in this bin. */ n = ksmodel_bin_count(histo, bin); if (!n) return NULL; first = ksmodel_first_index_at_bin(histo, bin); return kshark_entry_request_alloc(first, n, func, val, vis_only, KS_GRAPH_VIEW_FILTER_MASK); } static struct kshark_entry_request * ksmodel_entry_back_request_alloc(struct kshark_trace_histo *histo, int bin, bool vis_only, matching_condition_func func, int val) { size_t first, n; /* Get the number of entries in this bin. */ n = ksmodel_bin_count(histo, bin); if (!n) return NULL; first = ksmodel_last_index_at_bin(histo, bin); return kshark_entry_request_alloc(first, n, func, val, vis_only, KS_GRAPH_VIEW_FILTER_MASK); } /** * @brief Get the index of the first entry from a given Cpu in a given bin. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param cpu: Cpu Id. * * @returns Index of the first entry from a given Cpu in this bin. */ ssize_t ksmodel_first_index_at_cpu(struct kshark_trace_histo *histo, int bin, int cpu) { size_t i, n, first, not_found = KS_EMPTY_BIN; n = ksmodel_bin_count(histo, bin); if (!n) return not_found; first = ksmodel_first_index_at_bin(histo, bin); for (i = first; i < first + n; ++i) { if (histo->data[i]->cpu == cpu) { if (ksmodel_is_visible(histo->data[i])) return i; else not_found = KS_FILTERED_BIN; } } return not_found; } /** * @brief Get the index of the first entry from a given Task in a given bin. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param pid: Process Id of a task. * * @returns Index of the first entry from a given Task in this bin. */ ssize_t ksmodel_first_index_at_pid(struct kshark_trace_histo *histo, int bin, int pid) { size_t i, n, first, not_found = KS_EMPTY_BIN; n = ksmodel_bin_count(histo, bin); if (!n) return not_found; first = ksmodel_first_index_at_bin(histo, bin); for (i = first; i < first + n; ++i) { if (histo->data[i]->pid == pid) { if (ksmodel_is_visible(histo->data[i])) return i; else not_found = KS_FILTERED_BIN; } } return not_found; } /** * @brief In a given bin, start from the front end of the bin and go towards * the back end, searching for an entry satisfying the Matching * condition defined by a Matching condition function. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param vis_only: If true, a visible entry is requested. * @param func: Matching condition function. * @param val: Matching condition value, used by the Matching condition * function. * @param col: Optional input location for Data collection. * @param index: Optional output location for the index of the requested * entry inside the array. * * @returns Pointer ot a kshark_entry, if an entry has been found. Else NULL. */ const struct kshark_entry * ksmodel_get_entry_front(struct kshark_trace_histo *histo, int bin, bool vis_only, matching_condition_func func, int val, struct kshark_entry_collection *col, ssize_t *index) { struct kshark_entry_request *req; const struct kshark_entry *entry; if (index) *index = KS_EMPTY_BIN; /* Set the position at the beginning of the bin and go forward. */ req = ksmodel_entry_front_request_alloc(histo, bin, vis_only, func, val); if (!req) return NULL; if (col && col->size) entry = kshark_get_collection_entry_front(&req, histo->data, col, index); else entry = kshark_get_entry_front(req, histo->data, index); kshark_free_entry_request(req); return entry; } /** * @brief In a given bin, start from the back end of the bin and go towards * the front end, searching for an entry satisfying the Matching * condition defined by a Matching condition function. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param vis_only: If true, a visible entry is requested. * @param func: Matching condition function. * @param val: Matching condition value, used by the Matching condition * function. * @param col: Optional input location for Data collection. * @param index: Optional output location for the index of the requested * entry inside the array. * * @returns Pointer ot a kshark_entry, if an entry has been found. Else NULL. */ const struct kshark_entry * ksmodel_get_entry_back(struct kshark_trace_histo *histo, int bin, bool vis_only, matching_condition_func func, int val, struct kshark_entry_collection *col, ssize_t *index) { struct kshark_entry_request *req; const struct kshark_entry *entry; if (index) *index = KS_EMPTY_BIN; /* Set the position at the end of the bin and go backwards. */ req = ksmodel_entry_back_request_alloc(histo, bin, vis_only, func, val); if (!req) return NULL; if (col && col->size) entry = kshark_get_collection_entry_back(&req, histo->data, col, index); else entry = kshark_get_entry_back(req, histo->data, index); kshark_free_entry_request(req); return entry; } static int ksmodel_get_entry_pid(const struct kshark_entry *entry) { if (!entry) { /* No data has been found. */ return KS_EMPTY_BIN; } /* * Note that if some data has been found, but this data is * filtered-outa, the Dummy entry is returned. The PID of the Dummy * entry is KS_FILTERED_BIN. */ return entry->pid; } /** * @brief In a given bin, start from the front end of the bin and go towards * the back end, searching for an entry from a given CPU. Return * the Process Id of the task of the entry found. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param cpu: CPU Id. * @param vis_only: If true, a visible entry is requested. * @param col: Optional input location for Data collection. * @param index: Optional output location for the index of the requested * entry inside the array. * * @returns Process Id of the task if an entry has been found. Else a negative * Identifier (KS_EMPTY_BIN or KS_FILTERED_BIN). */ int ksmodel_get_pid_front(struct kshark_trace_histo *histo, int bin, int cpu, bool vis_only, struct kshark_entry_collection *col, ssize_t *index) { const struct kshark_entry *entry; if (cpu < 0) return KS_EMPTY_BIN; entry = ksmodel_get_entry_front(histo, bin, vis_only, kshark_match_cpu, cpu, col, index); return ksmodel_get_entry_pid(entry); } /** * @brief In a given bin, start from the back end of the bin and go towards * the front end, searching for an entry from a given CPU. Return * the Process Id of the task of the entry found. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param cpu: CPU Id. * @param vis_only: If true, a visible entry is requested. * @param col: Optional input location for Data collection. * @param index: Optional output location for the index of the requested * entry inside the array. * * @returns Process Id of the task if an entry has been found. Else a negative * Identifier (KS_EMPTY_BIN or KS_FILTERED_BIN). */ int ksmodel_get_pid_back(struct kshark_trace_histo *histo, int bin, int cpu, bool vis_only, struct kshark_entry_collection *col, ssize_t *index) { const struct kshark_entry *entry; if (cpu < 0) return KS_EMPTY_BIN; entry = ksmodel_get_entry_back(histo, bin, vis_only, kshark_match_cpu, cpu, col, index); return ksmodel_get_entry_pid(entry); } static int ksmodel_get_entry_cpu(const struct kshark_entry *entry) { if (!entry) { /* No data has been found. */ return KS_EMPTY_BIN; } /* * Note that if some data has been found, but this data is * filtered-outa, the Dummy entry is returned. The CPU Id of the Dummy * entry is KS_FILTERED_BIN. */ return entry->cpu; } /** * @brief In a given bin, start from the front end of the bin and go towards * the back end, searching for an entry from a given PID. Return * the CPU Id of the entry found. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param pid: Process Id. * @param vis_only: If true, a visible entry is requested. * @param col: Optional input location for Data collection. * @param index: Optional output location for the index of the requested * entry inside the array. * * @returns The CPU Id of the task if an entry has been found. Else a negative * Identifier (KS_EMPTY_BIN or KS_FILTERED_BIN). */ int ksmodel_get_cpu_front(struct kshark_trace_histo *histo, int bin, int pid, bool vis_only, struct kshark_entry_collection *col, ssize_t *index) { const struct kshark_entry *entry; if (pid < 0) return KS_EMPTY_BIN; entry = ksmodel_get_entry_front(histo, bin, vis_only, kshark_match_pid, pid, col, index); return ksmodel_get_entry_cpu(entry); } /** * @brief In a given bin, start from the back end of the bin and go towards * the front end, searching for an entry from a given PID. Return * the CPU Id of the entry found. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param pid: Process Id. * @param vis_only: If true, a visible entry is requested. * @param col: Optional input location for Data collection. * @param index: Optional output location for the index of the requested * entry inside the array. * * @returns The CPU Id of the task if an entry has been found. Else a negative * Identifier (KS_EMPTY_BIN or KS_FILTERED_BIN). */ int ksmodel_get_cpu_back(struct kshark_trace_histo *histo, int bin, int pid, bool vis_only, struct kshark_entry_collection *col, ssize_t *index) { const struct kshark_entry *entry; if (pid < 0) return KS_EMPTY_BIN; entry = ksmodel_get_entry_back(histo, bin, vis_only, kshark_match_pid, pid, col, index); return ksmodel_get_entry_cpu(entry); } /** * @brief Check if a visible trace event from a given Cpu exists in this bin. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param cpu: Cpu Id. * @param col: Optional input location for Data collection. * @param index: Optional output location for the index of the requested * entry inside the array. * * @returns True, if a visible entry exists in this bin. Else false. */ bool ksmodel_cpu_visible_event_exist(struct kshark_trace_histo *histo, int bin, int cpu, struct kshark_entry_collection *col, ssize_t *index) { struct kshark_entry_request *req; const struct kshark_entry *entry; if (index) *index = KS_EMPTY_BIN; /* Set the position at the beginning of the bin and go forward. */ req = ksmodel_entry_front_request_alloc(histo, bin, true, kshark_match_cpu, cpu); if (!req) return false; /* * The default visibility mask of the Model Data request is * KS_GRAPH_VIEW_FILTER_MASK. Change the mask to * KS_EVENT_VIEW_FILTER_MASK because we want to find a visible event. */ req->vis_mask = KS_EVENT_VIEW_FILTER_MASK; if (col && col->size) entry = kshark_get_collection_entry_front(&req, histo->data, col, index); else entry = kshark_get_entry_front(req, histo->data, index); kshark_free_entry_request(req); if (!entry || !entry->visible) { /* No visible entry has been found. */ return false; } return true; } /** * @brief Check if a visible trace event from a given Task exists in this bin. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param pid: Process Id of the task. * @param col: Optional input location for Data collection. * @param index: Optional output location for the index of the requested * entry inside the array. * * @returns True, if a visible entry exists in this bin. Else false. */ bool ksmodel_task_visible_event_exist(struct kshark_trace_histo *histo, int bin, int pid, struct kshark_entry_collection *col, ssize_t *index) { struct kshark_entry_request *req; const struct kshark_entry *entry; if (index) *index = KS_EMPTY_BIN; /* Set the position at the beginning of the bin and go forward. */ req = ksmodel_entry_front_request_alloc(histo, bin, true, kshark_match_pid, pid); if (!req) return false; /* * The default visibility mask of the Model Data request is * KS_GRAPH_VIEW_FILTER_MASK. Change the mask to * KS_EVENT_VIEW_FILTER_MASK because we want to find a visible event. */ req->vis_mask = KS_EVENT_VIEW_FILTER_MASK; if (col && col->size) entry = kshark_get_collection_entry_front(&req, histo->data, col, index); else entry = kshark_get_entry_front(req, histo->data, index); kshark_free_entry_request(req); if (!entry || !entry->visible) { /* No visible entry has been found. */ return false; } return true; } static bool match_cpu_missed_events(struct kshark_context *kshark_ctx, struct kshark_entry *e, int cpu) { return e->event_id == -EOVERFLOW && e->cpu == cpu; } static bool match_pid_missed_events(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid) { return e->event_id == -EOVERFLOW && e->pid == pid; } /** * @brief In a given CPU and bin, start from the front end of the bin and go towards * the back end, searching for a Missed Events entry. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param cpu: CPU Id. * @param col: Optional input location for Data collection. * @param index: Optional output location for the index of the requested * entry inside the array. * * @returns Pointer ot a kshark_entry, if an entry has been found. Else NULL. */ const struct kshark_entry * ksmodel_get_cpu_missed_events(struct kshark_trace_histo *histo, int bin, int cpu, struct kshark_entry_collection *col, ssize_t *index) { return ksmodel_get_entry_front(histo, bin, true, match_cpu_missed_events, cpu, col, index); } /** * @brief In a given task and bin, start from the front end of the bin and go towards * the back end, searching for a Missed Events entry. * * @param histo: Input location for the model descriptor. * @param bin: Bin id. * @param pid: Process Id of the task. * @param col: Optional input location for Data collection. * @param index: Optional output location for the index of the requested * entry inside the array. * * @returns Pointer ot a kshark_entry, if an entry has been found. Else NULL. */ const struct kshark_entry * ksmodel_get_task_missed_events(struct kshark_trace_histo *histo, int bin, int pid, struct kshark_entry_collection *col, ssize_t *index) { return ksmodel_get_entry_front(histo, bin, true, match_pid_missed_events, pid, col, index); } trace-cmd-2.8.3/kernel-shark/src/libkshark-model.h000066400000000000000000000115471351617527000220000ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file libkshark-model.h * @brief Visualization model for FTRACE (trace-cmd) data. */ #ifndef _LIB_KSHARK_MODEL_H #define _LIB_KSHARK_MODEL_H // KernelShark #include "libkshark.h" #ifdef __cplusplus extern "C" { #endif // __cplusplus /** * Overflow Bin identifiers. The two overflow bins are used to hold the data * outside the visualized range. */ enum OverflowBin { /** * Identifier of the Upper Overflow Bin. This bin is used to hold the * data after (in time) the end of the visualized range. */ UPPER_OVERFLOW_BIN = -1, /** * Identifier of the Lower Overflow Bin. This bin is used to hold the * data before (in time) the beginning of the visualized range. */ LOWER_OVERFLOW_BIN = -2, }; /** Structure describing the current state of the visualization model. */ struct kshark_trace_histo { /** Trace data array. */ struct kshark_entry **data; /** The size of the data array. */ size_t data_size; /** The first entry (index of data array) in each bin. */ ssize_t *map; /** Number of entries in each bin. */ size_t *bin_count; /** Total number of entries in all bin except the overflow bins. */ int tot_count; /** * Lower edge of the time-window to be visualized. Only entries having * timestamp >= min will be visualized. */ uint64_t min; /** * Upper edge of the time-window to be visualized. Only entries having * timestamp <= max will be visualized. */ uint64_t max; /** The size in time for each bin. */ uint64_t bin_size; /** Number of bins. */ int n_bins; }; void ksmodel_init(struct kshark_trace_histo *histo); void ksmodel_clear(struct kshark_trace_histo *histo); void ksmodel_set_bining(struct kshark_trace_histo *histo, size_t n, uint64_t min, uint64_t max); void ksmodel_fill(struct kshark_trace_histo *histo, struct kshark_entry **data, size_t n); size_t ksmodel_bin_count(struct kshark_trace_histo *histo, int bin); void ksmodel_shift_forward(struct kshark_trace_histo *histo, size_t n); void ksmodel_shift_backward(struct kshark_trace_histo *histo, size_t n); void ksmodel_jump_to(struct kshark_trace_histo *histo, size_t ts); void ksmodel_zoom_out(struct kshark_trace_histo *histo, double r, int mark); void ksmodel_zoom_in(struct kshark_trace_histo *histo, double r, int mark); ssize_t ksmodel_first_index_at_bin(struct kshark_trace_histo *histo, int bin); ssize_t ksmodel_last_index_at_bin(struct kshark_trace_histo *histo, int bin); ssize_t ksmodel_first_index_at_cpu(struct kshark_trace_histo *histo, int bin, int cpu); ssize_t ksmodel_first_index_at_pid(struct kshark_trace_histo *histo, int bin, int pid); const struct kshark_entry * ksmodel_get_entry_front(struct kshark_trace_histo *histo, int bin, bool vis_only, matching_condition_func func, int val, struct kshark_entry_collection *col, ssize_t *index); const struct kshark_entry * ksmodel_get_entry_back(struct kshark_trace_histo *histo, int bin, bool vis_only, matching_condition_func func, int val, struct kshark_entry_collection *col, ssize_t *index); int ksmodel_get_pid_front(struct kshark_trace_histo *histo, int bin, int cpu, bool vis_only, struct kshark_entry_collection *col, ssize_t *index); int ksmodel_get_pid_back(struct kshark_trace_histo *histo, int bin, int cpu, bool vis_only, struct kshark_entry_collection *col, ssize_t *index); int ksmodel_get_cpu_front(struct kshark_trace_histo *histo, int bin, int pid, bool vis_only, struct kshark_entry_collection *col, ssize_t *index); int ksmodel_get_cpu_back(struct kshark_trace_histo *histo, int bin, int pid, bool vis_only, struct kshark_entry_collection *col, ssize_t *index); bool ksmodel_cpu_visible_event_exist(struct kshark_trace_histo *histo, int bin, int cpu, struct kshark_entry_collection *col, ssize_t *index); bool ksmodel_task_visible_event_exist(struct kshark_trace_histo *histo, int bin, int pid, struct kshark_entry_collection *col, ssize_t *index); const struct kshark_entry * ksmodel_get_cpu_missed_events(struct kshark_trace_histo *histo, int bin, int cpu, struct kshark_entry_collection *col, ssize_t *index); const struct kshark_entry * ksmodel_get_task_missed_events(struct kshark_trace_histo *histo, int bin, int pid, struct kshark_entry_collection *col, ssize_t *index); static inline double ksmodel_bin_time(struct kshark_trace_histo *histo, int bin) { return (histo->min + bin*histo->bin_size) * 1e-9; } static inline uint64_t ksmodel_bin_ts(struct kshark_trace_histo *histo, int bin) { return (histo->min + bin*histo->bin_size); } #ifdef __cplusplus } #endif // __cplusplus #endif trace-cmd-2.8.3/kernel-shark/src/libkshark-plot.c000066400000000000000000000116371351617527000216510ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file libkshark-plot.c * @brief Basic tools for OpenGL plotting. */ // OpenGL #include #include // KernelShark #include "libkshark-plot.h" /** * @brief Create an empty scene for drawing. * * @param width: Width of the screen window in pixels. * @param height: Height of the screen window in pixels. */ void ksplot_make_scene(int width, int height) { /* Set Display mode. */ glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB); /* Prevent the program from exiting when a window is closed. */ glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE, GLUT_ACTION_GLUTMAINLOOP_RETURNS); /* Set window size. */ glutInitWindowSize(width, height); /* Set window position on screen. */ glutInitWindowPosition(50, 50); /* Open the screen window. */ glutCreateWindow("KernelShark Plot"); /* * Set the origin of the coordinate system to be the top left corner. * The "Y" coordinate is inverted. */ gluOrtho2D(0, width, height, 0); glViewport(0, 0, width, height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); } /** * @brief Initialize OpenGL. * * @param dpr: Device Pixel Ratio. */ void ksplot_init_opengl(int dpr) { glDisable(GL_TEXTURE_2D); glDisable(GL_DEPTH_TEST); glDisable(GL_COLOR_MATERIAL); glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glEnable(GL_POLYGON_SMOOTH); glLineWidth(1.5 * dpr); glPointSize(2.5 * dpr); glClearColor(1, 1, 1, 1); } /** * @brief To be called whenever the OpenGL window has been resized. * * @param width: Width of the screen window in pixels. * @param height: Height of the screen window in pixels. */ void ksplot_resize_opengl(int width, int height) { glViewport(0, 0, width, height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); /* * Set the origin of the coordinate system to be the top left corner. * The "Y" coordinate is inverted. */ gluOrtho2D(0, width, height, 0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } /** * @brief Draw a point. * * @param p: Input location for the point object. * @param col: The color of the point. * @param size: The size of the point. */ void ksplot_draw_point(const struct ksplot_point *p, const struct ksplot_color *col, float size) { if (!p || !col || size < .5f) return; glPointSize(size); glBegin(GL_POINTS); glColor3ub(col->red, col->green, col->blue); glVertex2i(p->x, p->y); glEnd(); } /** * @brief Draw a line. * * @param a: Input location for the first finishing point of the line. * @param b: Input location for the second finishing point of the line. * @param col: The color of the line. * @param size: The size of the line. */ void ksplot_draw_line(const struct ksplot_point *a, const struct ksplot_point *b, const struct ksplot_color *col, float size) { if (!a || !b || !col || size < .5f) return; glLineWidth(size); glBegin(GL_LINES); glColor3ub(col->red, col->green, col->blue); glVertex2i(a->x, a->y); glVertex2i(b->x, b->y); glEnd(); } /** * @brief Draw a polygon. * * @param points: Input location for the array of points defining the polygon. * @param n_points: The size of the array of points. * @param col: The color of the polygon. * @param size: The size of the polygon. */ void ksplot_draw_polygon(const struct ksplot_point *points, size_t n_points, const struct ksplot_color *col, float size) { if (!points || !n_points || !col || size < .5f) return; if (n_points == 1) { ksplot_draw_point(points, col, size); return; } if (n_points == 2) { ksplot_draw_line(points, points + 1, col, size); return; } /* Obtain a point inside the surface of the polygon. */ struct ksplot_point in_point; in_point.x = (points[0].x + points[2].x) / 2; in_point.y = (points[0].y + points[2].y) / 2; /* * Draw a Triangle Fan using the internal point as a central * vertex. */ glBegin(GL_TRIANGLE_FAN); glColor3ub(col->red, col->green, col->blue); glVertex2i(in_point.x, in_point.y); for (size_t i = 0; i < n_points; ++i) glVertex2i(points[i].x, points[i].y); glVertex2i(points[0].x, points[0].y); glEnd(); } /** * @brief Draw the contour of a polygon. * * @param points: Input location for the array of points defining the polygon. * @param n_points: The size of the array of points. * @param col: The color of the polygon. * @param size: The size of the polygon. */ void ksplot_draw_polygon_contour(const struct ksplot_point *points, size_t n_points, const struct ksplot_color *col, float size) { if (!points || !n_points || !col || size < .5f) return; /* Loop over the points of the polygon and draw connecting lines. */ for(size_t i = 1; i < n_points; ++i) ksplot_draw_line(&points[i - 1], &points[i], col, size); /* Close the contour. */ ksplot_draw_line(&points[0], &points[n_points - 1], col, size); } trace-cmd-2.8.3/kernel-shark/src/libkshark-plot.h000066400000000000000000000026611351617527000216530ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file libkshark-plot.h * @brief Basic tools for OpenGL plotting. */ #ifndef _LIB_KSHARK_PLOT_H #define _LIB_KSHARK_PLOT_H #ifdef __cplusplus extern "C" { #endif /** Structure defining a RGB color. */ struct ksplot_color { /** The Red component of the color. */ uint8_t red; /** The Green component of the color. */ uint8_t green; /** The Blue component of the color. */ uint8_t blue; }; /** Structure defining a 2D point. */ struct ksplot_point { /** The horizontal coordinate of the point in pixels. */ int x; /** The vertical coordinate of the pointin in pixels. */ int y; }; void ksplot_make_scene(int width, int height); void ksplot_init_opengl(int dpr); void ksplot_resize_opengl(int width, int height); void ksplot_draw_point(const struct ksplot_point *p, const struct ksplot_color *col, float size); void ksplot_draw_line(const struct ksplot_point *a, const struct ksplot_point *b, const struct ksplot_color *col, float size); void ksplot_draw_polygon(const struct ksplot_point *points, size_t n_points, const struct ksplot_color *col, float size); void ksplot_draw_polygon_contour(const struct ksplot_point *points, size_t n_points, const struct ksplot_color *col, float size); #ifdef __cplusplus } #endif #endif trace-cmd-2.8.3/kernel-shark/src/libkshark-plugin.c000066400000000000000000000154621351617527000221710ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file libkshark-plugin.c * @brief KernelShark plugins. */ // C #ifndef _GNU_SOURCE /** Use GNU C Library. */ #define _GNU_SOURCE #endif #include #include #include #include #include #include // KernelShark #include "libkshark-plugin.h" #include "libkshark.h" static struct kshark_event_handler * gui_event_handler_alloc(int event_id, kshark_plugin_event_handler_func evt_func, kshark_plugin_draw_handler_func dw_func) { struct kshark_event_handler *handler = malloc(sizeof(*handler)); if (!handler) { fprintf(stderr, "failed to allocate memory for gui eventhandler"); return NULL; } handler->next = NULL; handler->id = event_id; handler->event_func = evt_func; handler->draw_func = dw_func; return handler; } /** * @brief Search the list of event handlers for a handle associated with a * given event type. * * @param handlers: Input location for the Event handler list. * @param event_id: Event Id to search for. */ struct kshark_event_handler * kshark_find_event_handler(struct kshark_event_handler *handlers, int event_id) { for (; handlers; handlers = handlers->next) if (handlers->id == event_id) return handlers; return NULL; } /** * @brief Add new event handler to an existing list of handlers. * * @param handlers: Input location for the Event handler list. * @param event_id: Event Id. * @param evt_func: Input location for an Event action provided by the plugin. * @param dw_func: Input location for a Draw action provided by the plugin. * * @returns Zero on success, or a negative error code on failure. */ int kshark_register_event_handler(struct kshark_event_handler **handlers, int event_id, kshark_plugin_event_handler_func evt_func, kshark_plugin_draw_handler_func dw_func) { struct kshark_event_handler *handler = gui_event_handler_alloc(event_id, evt_func, dw_func); if(!handler) return -ENOMEM; handler->next = *handlers; *handlers = handler; return 0; } /** * @brief Search the list for a specific plugin handle. If such a plugin handle * exists, unregister (remove and free) this handle from the list. * * @param handlers: Input location for the Event handler list. * @param event_id: Event Id of the plugin handler to be unregistered. * @param evt_func: Event action function of the handler to be unregistered. * @param dw_func: Draw action function of the handler to be unregistered. */ void kshark_unregister_event_handler(struct kshark_event_handler **handlers, int event_id, kshark_plugin_event_handler_func evt_func, kshark_plugin_draw_handler_func dw_func) { struct kshark_event_handler **last; for (last = handlers; *last; last = &(*last)->next) { if ((*last)->id == event_id && (*last)->event_func == evt_func && (*last)->draw_func == dw_func) { struct kshark_event_handler *this_handler; this_handler = *last; *last = this_handler->next; free(this_handler); return; } } } /** * @brief Free all Event handlers in a given list. * * @param handlers: Input location for the Event handler list. */ void kshark_free_event_handler_list(struct kshark_event_handler *handlers) { struct kshark_event_handler *last; while (handlers) { last = handlers; handlers = handlers->next; free(last); } } /** * @brief Allocate memory for a new plugin. Add this plugin to the list of * plugins used by the session. * * @param kshark_ctx: Input location for the session context pointer. * @param file: The plugin object file to load. * * @returns Zero on success, or a negative error code on failure. */ int kshark_register_plugin(struct kshark_context *kshark_ctx, const char *file) { struct kshark_plugin_list *plugin = kshark_ctx->plugins; struct stat st; int ret; while (plugin) { if (strcmp(plugin->file, file) == 0) return -EEXIST; plugin = plugin->next; } ret = stat(file, &st); if (ret < 0) { fprintf(stderr, "plugin %s not found\n", file); return -ENODEV; } plugin = calloc(sizeof(struct kshark_plugin_list), 1); if (!plugin) { fprintf(stderr, "failed to allocate memory for plugin\n"); return -ENOMEM; } if (asprintf(&plugin->file, "%s", file) <= 0) { fprintf(stderr, "failed to allocate memory for plugin file name"); return -ENOMEM; } plugin->handle = dlopen(plugin->file, RTLD_NOW | RTLD_GLOBAL); if (!plugin->handle) goto fail; plugin->init = dlsym(plugin->handle, KSHARK_PLUGIN_INITIALIZER_NAME); plugin->close = dlsym(plugin->handle, KSHARK_PLUGIN_DEINITIALIZER_NAME); if (!plugin->init || !plugin->close) goto fail; plugin->next = kshark_ctx->plugins; kshark_ctx->plugins = plugin; return 0; fail: fprintf(stderr, "cannot load plugin '%s'\n%s\n", plugin->file, dlerror()); if (plugin->handle) { dlclose(plugin->handle); plugin->handle = NULL; } free(plugin); return EFAULT; } /** * @brief Unrgister a plugin. * * @param kshark_ctx: Input location for context pointer. * @param file: The plugin object file to unregister. */ void kshark_unregister_plugin(struct kshark_context *kshark_ctx, const char *file) { struct kshark_plugin_list **last; for (last = &kshark_ctx->plugins; *last; last = &(*last)->next) { if (strcmp((*last)->file, file) == 0) { struct kshark_plugin_list *this_plugin; this_plugin = *last; *last = this_plugin->next; dlclose(this_plugin->handle); free(this_plugin); return; } } } /** * @brief Free all plugins in a given list. * * @param plugins: Input location for the plugins list. */ void kshark_free_plugin_list(struct kshark_plugin_list *plugins) { struct kshark_plugin_list *last; while (plugins) { last = plugins; plugins = plugins->next; free(last->file); dlclose(last->handle); free(last); } } /** * @brief Use this function to initialize/update/deinitialize all registered * plugins. * * @param kshark_ctx: Input location for context pointer. * @param task_id: Action identifier specifying the action to be executed. * * @returns The number of successful added/removed plugin handlers on success, * or a negative error code on failure. */ int kshark_handle_plugins(struct kshark_context *kshark_ctx, enum kshark_plugin_actions task_id) { struct kshark_plugin_list *plugin; int handler_count = 0; for (plugin = kshark_ctx->plugins; plugin; plugin = plugin->next) { switch (task_id) { case KSHARK_PLUGIN_INIT: handler_count += plugin->init(kshark_ctx); break; case KSHARK_PLUGIN_UPDATE: plugin->close(kshark_ctx); handler_count += plugin->init(kshark_ctx); break; case KSHARK_PLUGIN_CLOSE: handler_count += plugin->close(kshark_ctx); break; default: return -EINVAL; } } return handler_count; } trace-cmd-2.8.3/kernel-shark/src/libkshark-plugin.h000066400000000000000000000105341351617527000221710ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2016 Red Hat Inc, Steven Rostedt */ /** * @file libkshark-plugin.h * @brief KernelShark plugins. */ #ifndef _KSHARK_PLUGIN_H #define _KSHARK_PLUGIN_H #ifdef __cplusplus extern "C" { #endif // __cplusplus // trace-cmd #include "traceevent/event-parse.h" /* Quiet warnings over documenting simple structures */ //! @cond Doxygen_Suppress #define KSHARK_PLUGIN_INITIALIZER kshark_plugin_initializer #define KSHARK_PLUGIN_DEINITIALIZER kshark_plugin_deinitializer #define _MAKE_STR(x) #x #define MAKE_STR(x) _MAKE_STR(x) #define KSHARK_PLUGIN_INITIALIZER_NAME MAKE_STR(KSHARK_PLUGIN_INITIALIZER) #define KSHARK_PLUGIN_DEINITIALIZER_NAME MAKE_STR(KSHARK_PLUGIN_DEINITIALIZER) struct kshark_context; struct kshark_entry; //! @endcond /** * A function type to be used when defining load/reload/unload plugin * functions. */ typedef int (*kshark_plugin_load_func)(struct kshark_context *); struct kshark_trace_histo; /** * Structure representing the C arguments of the drawing function of * a plugin. */ struct kshark_cpp_argv { /** Pointer to the model descriptor object. */ struct kshark_trace_histo *histo; }; /** A function type to be used when defining plugin functions for drawing. */ typedef void (*kshark_plugin_draw_handler_func)(struct kshark_cpp_argv *argv, int val, int draw_action); /** * A function type to be used when defining plugin functions for data * manipulation. */ typedef void (*kshark_plugin_event_handler_func)(struct kshark_context *kshark_ctx, struct tep_record *rec, struct kshark_entry *e); /** Plugin action identifier. */ enum kshark_plugin_actions { /** * Load plugins action. This action identifier is used when handling * plugins. */ KSHARK_PLUGIN_INIT, /** * Reload plugins action. This action identifier is used when handling * plugins. */ KSHARK_PLUGIN_UPDATE, /** * Unload plugins action. This action identifier is used when handling * plugins. */ KSHARK_PLUGIN_CLOSE, /** * Task draw action. This action identifier is used by the plugin draw * function. */ KSHARK_PLUGIN_TASK_DRAW, /** * CPU draw action. This action identifier is used by the plugin draw * function. */ KSHARK_PLUGIN_CPU_DRAW, }; /** * Plugin Event handler structure, defining the properties of the required * kshark_entry. */ struct kshark_event_handler { /** Pointer to the next Plugin Event handler. */ struct kshark_event_handler *next; /** Unique Id ot the trace event type. */ int id; /** * Event action function. This action can be used to modify the content * of all kshark_entries having Event Ids equal to "id". */ kshark_plugin_event_handler_func event_func; /** * Draw action function. This action can be used to draw additional * graphical elements (shapes) for all kshark_entries having Event Ids * equal to "id". */ kshark_plugin_draw_handler_func draw_func; }; struct kshark_event_handler * kshark_find_event_handler(struct kshark_event_handler *handlers, int event_id); int kshark_register_event_handler(struct kshark_event_handler **handlers, int event_id, kshark_plugin_event_handler_func evt_func, kshark_plugin_draw_handler_func dw_func); void kshark_unregister_event_handler(struct kshark_event_handler **handlers, int event_id, kshark_plugin_event_handler_func evt_func, kshark_plugin_draw_handler_func dw_func); void kshark_free_event_handler_list(struct kshark_event_handler *handlers); /** Linked list of plugins. */ struct kshark_plugin_list { /** Pointer to the next Plugin. */ struct kshark_plugin_list *next; /** The plugin object file to load. */ char *file; /** Plugin Event handler. */ void *handle; /** Callback function for initialization of the plugin. */ kshark_plugin_load_func init; /** Callback function for deinitialization of the plugin. */ kshark_plugin_load_func close; }; int kshark_register_plugin(struct kshark_context *kshark_ctx, const char *file); void kshark_unregister_plugin(struct kshark_context *kshark_ctx, const char *file); void kshark_free_plugin_list(struct kshark_plugin_list *plugins); int kshark_handle_plugins(struct kshark_context *kshark_ctx, enum kshark_plugin_actions task_id); #ifdef __cplusplus } #endif // __cplusplus #endif // _KSHARK_PLUGIN_H trace-cmd-2.8.3/kernel-shark/src/libkshark.c000066400000000000000000001356341351617527000207010ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file libkshark.c * @brief API for processing of FTRACE (trace-cmd) data. */ /** Use GNU C Library. */ #define _GNU_SOURCE 1 // C #include #include #include // KernelShark #include "libkshark.h" static __thread struct trace_seq seq; static struct kshark_context *kshark_context_handler = NULL; static bool kshark_default_context(struct kshark_context **context) { struct kshark_context *kshark_ctx; kshark_ctx = calloc(1, sizeof(*kshark_ctx)); if (!kshark_ctx) return false; kshark_ctx->event_handlers = NULL; kshark_ctx->collections = NULL; kshark_ctx->plugins = NULL; kshark_ctx->show_task_filter = tracecmd_filter_id_hash_alloc(); kshark_ctx->hide_task_filter = tracecmd_filter_id_hash_alloc(); kshark_ctx->show_event_filter = tracecmd_filter_id_hash_alloc(); kshark_ctx->hide_event_filter = tracecmd_filter_id_hash_alloc(); kshark_ctx->show_cpu_filter = tracecmd_filter_id_hash_alloc(); kshark_ctx->hide_cpu_filter = tracecmd_filter_id_hash_alloc(); kshark_ctx->filter_mask = 0x0; /* Will free kshark_context_handler. */ kshark_free(NULL); /* Will do nothing if *context is NULL. */ kshark_free(*context); *context = kshark_context_handler = kshark_ctx; return true; } static bool init_thread_seq(void) { if (!seq.buffer) trace_seq_init(&seq); return seq.buffer != NULL; } /** * @brief Initialize a kshark session. This function must be called before * calling any other kshark function. If the session has been * initialized, this function can be used to obtain the session's * context. * * @param kshark_ctx: Optional input/output location for context pointer. * If it points to a context, that context will become * the new session. If it points to NULL, it will obtain * the current (or new) session. The result is only * valid on return of true. * * @returns True on success, or false on failure. */ bool kshark_instance(struct kshark_context **kshark_ctx) { if (*kshark_ctx != NULL) { /* Will free kshark_context_handler */ kshark_free(NULL); /* Use the context provided by the user. */ kshark_context_handler = *kshark_ctx; } else { if (kshark_context_handler) { /* * No context is provided by the user, but the context * handler is already set. Use the context handler. */ *kshark_ctx = kshark_context_handler; } else { /* No kshark_context exists. Create a default one. */ if (!kshark_default_context(kshark_ctx)) return false; } } if (!init_thread_seq()) return false; return true; } static void kshark_free_task_list(struct kshark_context *kshark_ctx) { struct kshark_task_list *task; int i; if (!kshark_ctx) return; for (i = 0; i < KS_TASK_HASH_SIZE; ++i) { while (kshark_ctx->tasks[i]) { task = kshark_ctx->tasks[i]; kshark_ctx->tasks[i] = task->next; free(task); } } } /** * @brief Open and prepare for reading a trace data file specified by "file". * If the specified file does not exist, or contains no trace data, * the function returns false. * * @param kshark_ctx: Input location for context pointer. * @param file: The file to load. * * @returns True on success, or false on failure. */ bool kshark_open(struct kshark_context *kshark_ctx, const char *file) { struct tracecmd_input *handle; kshark_free_task_list(kshark_ctx); handle = tracecmd_open(file); if (!handle) return false; if (pthread_mutex_init(&kshark_ctx->input_mutex, NULL) != 0) { tracecmd_close(handle); return false; } kshark_ctx->handle = handle; kshark_ctx->pevent = tracecmd_get_pevent(handle); kshark_ctx->advanced_event_filter = tep_filter_alloc(kshark_ctx->pevent); /* * Turn off function trace indent and turn on show parent * if possible. */ trace_util_add_option("ftrace:parent", "1"); trace_util_add_option("ftrace:indent", "0"); return true; } /** * @brief Close the trace data file and free the trace data handle. * * @param kshark_ctx: Input location for the session context pointer. */ void kshark_close(struct kshark_context *kshark_ctx) { if (!kshark_ctx || !kshark_ctx->handle) return; /* * All filters are file specific. Make sure that the Pids and Event Ids * from this file are not going to be used with another file. */ tracecmd_filter_id_clear(kshark_ctx->show_task_filter); tracecmd_filter_id_clear(kshark_ctx->hide_task_filter); tracecmd_filter_id_clear(kshark_ctx->show_event_filter); tracecmd_filter_id_clear(kshark_ctx->hide_event_filter); tracecmd_filter_id_clear(kshark_ctx->show_cpu_filter); tracecmd_filter_id_clear(kshark_ctx->hide_cpu_filter); if (kshark_ctx->advanced_event_filter) { tep_filter_reset(kshark_ctx->advanced_event_filter); tep_filter_free(kshark_ctx->advanced_event_filter); kshark_ctx->advanced_event_filter = NULL; } /* * All data collections are file specific. Make sure that collections * from this file are not going to be used with another file. */ kshark_free_collection_list(kshark_ctx->collections); kshark_ctx->collections = NULL; tracecmd_close(kshark_ctx->handle); kshark_ctx->handle = NULL; kshark_ctx->pevent = NULL; pthread_mutex_destroy(&kshark_ctx->input_mutex); } /** * @brief Deinitialize kshark session. Should be called after closing all * open trace data files and before your application terminates. * * @param kshark_ctx: Optional input location for session context pointer. * If it points to a context of a sessuin, that sessuin * will be deinitialize. If it points to NULL, it will * deinitialize the current session. */ void kshark_free(struct kshark_context *kshark_ctx) { if (kshark_ctx == NULL) { if (kshark_context_handler == NULL) return; kshark_ctx = kshark_context_handler; /* kshark_ctx_handler will be set to NULL below. */ } tracecmd_filter_id_hash_free(kshark_ctx->show_task_filter); tracecmd_filter_id_hash_free(kshark_ctx->hide_task_filter); tracecmd_filter_id_hash_free(kshark_ctx->show_event_filter); tracecmd_filter_id_hash_free(kshark_ctx->hide_event_filter); tracecmd_filter_id_hash_free(kshark_ctx->show_cpu_filter); tracecmd_filter_id_hash_free(kshark_ctx->hide_cpu_filter); if (kshark_ctx->plugins) { kshark_handle_plugins(kshark_ctx, KSHARK_PLUGIN_CLOSE); kshark_free_plugin_list(kshark_ctx->plugins); kshark_free_event_handler_list(kshark_ctx->event_handlers); } kshark_free_task_list(kshark_ctx); if (seq.buffer) trace_seq_destroy(&seq); if (kshark_ctx == kshark_context_handler) kshark_context_handler = NULL; free(kshark_ctx); } static inline uint8_t knuth_hash8(uint32_t val) { /* * Hashing functions, based on Donald E. Knuth's Multiplicative * hashing. See The Art of Computer Programming (TAOCP). * Multiplication by the Prime number, closest to the golden * ratio of 2^8. */ return UINT8_C(val) * UINT8_C(157); } static struct kshark_task_list * kshark_find_task(struct kshark_context *kshark_ctx, uint8_t key, int pid) { struct kshark_task_list *list; for (list = kshark_ctx->tasks[key]; list; list = list->next) { if (list->pid == pid) return list; } return NULL; } static struct kshark_task_list * kshark_add_task(struct kshark_context *kshark_ctx, int pid) { struct kshark_task_list *list; uint8_t key; key = knuth_hash8(pid); list = kshark_find_task(kshark_ctx, key, pid); if (list) return list; list = malloc(sizeof(*list)); if (!list) return NULL; list->pid = pid; list->next = kshark_ctx->tasks[key]; kshark_ctx->tasks[key] = list; return list; } /** * @brief Get an array containing the Process Ids of all tasks presented in * the loaded trace data file. * * @param kshark_ctx: Input location for context pointer. * @param pids: Output location for the Pids of the tasks. The user is * responsible for freeing the elements of the outputted array. * * @returns The size of the outputted array of Pids in the case of success, * or a negative error code on failure. */ ssize_t kshark_get_task_pids(struct kshark_context *kshark_ctx, int **pids) { size_t i, pid_count = 0, pid_size = KS_TASK_HASH_SIZE; struct kshark_task_list *list; int *temp_pids; *pids = calloc(pid_size, sizeof(int)); if (!*pids) goto fail; for (i = 0; i < KS_TASK_HASH_SIZE; ++i) { list = kshark_ctx->tasks[i]; while (list) { (*pids)[pid_count] = list->pid; list = list->next; if (++pid_count >= pid_size) { pid_size *= 2; temp_pids = realloc(*pids, pid_size * sizeof(int)); if (!temp_pids) { goto fail; } *pids = temp_pids; } } } if (pid_count) { temp_pids = realloc(*pids, pid_count * sizeof(int)); if (!temp_pids) goto fail; /* Paranoid: In the unlikely case of shrinking *pids, realloc moves it */ *pids = temp_pids; } else { free(*pids); *pids = NULL; } return pid_count; fail: fprintf(stderr, "Failed to allocate memory for Task Pids.\n"); free(*pids); *pids = NULL; return -ENOMEM; } static bool filter_find(struct tracecmd_filter_id *filter, int pid, bool test) { return !filter || !filter->count || !!(unsigned long)tracecmd_filter_id_find(filter, pid) == test; } static bool kshark_show_task(struct kshark_context *kshark_ctx, int pid) { return filter_find(kshark_ctx->show_task_filter, pid, true) && filter_find(kshark_ctx->hide_task_filter, pid, false); } static bool kshark_show_event(struct kshark_context *kshark_ctx, int pid) { return filter_find(kshark_ctx->show_event_filter, pid, true) && filter_find(kshark_ctx->hide_event_filter, pid, false); } static bool kshark_show_cpu(struct kshark_context *kshark_ctx, int cpu) { return filter_find(kshark_ctx->show_cpu_filter, cpu, true) && filter_find(kshark_ctx->hide_cpu_filter, cpu, false); } /** * @brief Add an Id value to the filster specified by "filter_id". * * @param kshark_ctx: Input location for the session context pointer. * @param filter_id: Identifier of the filter. * @param id: Id value to be added to the filter. */ void kshark_filter_add_id(struct kshark_context *kshark_ctx, int filter_id, int id) { struct tracecmd_filter_id *filter; switch (filter_id) { case KS_SHOW_CPU_FILTER: filter = kshark_ctx->show_cpu_filter; break; case KS_HIDE_CPU_FILTER: filter = kshark_ctx->hide_cpu_filter; break; case KS_SHOW_EVENT_FILTER: filter = kshark_ctx->show_event_filter; break; case KS_HIDE_EVENT_FILTER: filter = kshark_ctx->hide_event_filter; break; case KS_SHOW_TASK_FILTER: filter = kshark_ctx->show_task_filter; break; case KS_HIDE_TASK_FILTER: filter = kshark_ctx->hide_task_filter; break; default: return; } tracecmd_filter_id_add(filter, id); } /** * @brief Clear (reset) the filster specified by "filter_id". * * @param kshark_ctx: Input location for the session context pointer. * @param filter_id: Identifier of the filter. */ void kshark_filter_clear(struct kshark_context *kshark_ctx, int filter_id) { struct tracecmd_filter_id *filter; switch (filter_id) { case KS_SHOW_CPU_FILTER: filter = kshark_ctx->show_cpu_filter; break; case KS_HIDE_CPU_FILTER: filter = kshark_ctx->hide_cpu_filter; break; case KS_SHOW_EVENT_FILTER: filter = kshark_ctx->show_event_filter; break; case KS_HIDE_EVENT_FILTER: filter = kshark_ctx->hide_event_filter; break; case KS_SHOW_TASK_FILTER: filter = kshark_ctx->show_task_filter; break; case KS_HIDE_TASK_FILTER: filter = kshark_ctx->hide_task_filter; break; default: return; } tracecmd_filter_id_clear(filter); } static bool filter_is_set(struct tracecmd_filter_id *filter) { return filter && filter->count; } /** * @brief Check if an Id filter is set. * * @param kshark_ctx: Input location for the session context pointer. * * @returns True if at least one Id filter is set, otherwise False. */ bool kshark_filter_is_set(struct kshark_context *kshark_ctx) { return filter_is_set(kshark_ctx->show_task_filter) || filter_is_set(kshark_ctx->hide_task_filter) || filter_is_set(kshark_ctx->show_cpu_filter) || filter_is_set(kshark_ctx->hide_cpu_filter) || filter_is_set(kshark_ctx->show_event_filter) || filter_is_set(kshark_ctx->hide_event_filter); } static inline void unset_event_filter_flag(struct kshark_context *kshark_ctx, struct kshark_entry *e) { /* * All entries, filtered-out by the event filters, will be treated * differently, when visualized. Because of this, ignore the value * of the GRAPH_VIEW flag provided by the user via * kshark_ctx->filter_mask. The value of the EVENT_VIEW flag in * kshark_ctx->filter_mask will be used instead. */ int event_mask = kshark_ctx->filter_mask & ~KS_GRAPH_VIEW_FILTER_MASK; e->visible &= ~event_mask; } /** * @brief This function loops over the array of entries specified by "data" * and "n_entries" and sets the "visible" fields of each entry * according to the criteria provided by the filters of the session's * context. The field "filter_mask" of the session's context is used to * control the level of visibility/invisibility of the entries which * are filtered-out. * WARNING: Do not use this function if the advanced filter is set. * Applying the advanced filter requires access to prevent_record, * hence the data has to be reloaded using kshark_load_data_entries(). * * @param kshark_ctx: Input location for the session context pointer. * @param data: Input location for the trace data to be filtered. * @param n_entries: The size of the inputted data. */ void kshark_filter_entries(struct kshark_context *kshark_ctx, struct kshark_entry **data, size_t n_entries) { int i; if (kshark_ctx->advanced_event_filter->filters) { /* The advanced filter is set. */ fprintf(stderr, "Failed to filter!\n"); fprintf(stderr, "Reset the Advanced filter or reload the data.\n"); return; } if (!kshark_filter_is_set(kshark_ctx)) return; /* Apply only the Id filters. */ for (i = 0; i < n_entries; ++i) { /* Start with and entry which is visible everywhere. */ data[i]->visible = 0xFF; /* Apply event filtering. */ if (!kshark_show_event(kshark_ctx, data[i]->event_id)) unset_event_filter_flag(kshark_ctx, data[i]); /* Apply CPU filtering. */ if (!kshark_show_cpu(kshark_ctx, data[i]->cpu)) data[i]->visible &= ~kshark_ctx->filter_mask; /* Apply task filtering. */ if (!kshark_show_task(kshark_ctx, data[i]->pid)) data[i]->visible &= ~kshark_ctx->filter_mask; } } /** * @brief This function loops over the array of entries specified by "data" * and "n_entries" and resets the "visible" fields of each entry to * the default value of "0xFF" (visible everywhere). * * @param kshark_ctx: Input location for the session context pointer. * @param data: Input location for the trace data to be unfiltered. * @param n_entries: The size of the inputted data. */ void kshark_clear_all_filters(struct kshark_context *kshark_ctx, struct kshark_entry **data, size_t n_entries) { int i; for (i = 0; i < n_entries; ++i) data[i]->visible = 0xFF; } static void kshark_set_entry_values(struct kshark_context *kshark_ctx, struct tep_record *record, struct kshark_entry *entry) { /* Offset of the record */ entry->offset = record->offset; /* CPU Id of the record */ entry->cpu = record->cpu; /* Time stamp of the record */ entry->ts = record->ts; /* Event Id of the record */ entry->event_id = tep_data_type(kshark_ctx->pevent, record); /* * Is visible mask. This default value means that the entry * is visible everywhere. */ entry->visible = 0xFF; /* Process Id of the record */ entry->pid = tep_data_pid(kshark_ctx->pevent, record); } /** Prior time offset of the "missed_events" entry. */ #define ME_ENTRY_TIME_SHIFT 10 static void missed_events_action(struct kshark_context *kshark_ctx, struct tep_record *record, struct kshark_entry *entry) { /* * Use the offset field of the entry to store the number of missed * events. */ entry->offset = record->missed_events; entry->cpu = record->cpu; /* * Position the "missed_events" entry a bit before (in time) * the original record. */ entry->ts = record->ts - ME_ENTRY_TIME_SHIFT; /* All custom entries must have negative event Identifiers. */ entry->event_id = KS_EVENT_OVERFLOW; entry->visible = 0xFF; entry->pid = tep_data_pid(kshark_ctx->pevent, record); } static const char* missed_events_dump(struct kshark_context *kshark_ctx, const struct kshark_entry *entry, bool get_info) { int size = 0; static char *buffer; if (get_info) size = asprintf(&buffer, "missed_events=%i", (int) entry->offset); else size = asprintf(&buffer, "missed_events"); if (size > 0) return buffer; return NULL; } /** * rec_list is used to pass the data to the load functions. * The rec_list will contain the list of entries from the source, * and will be a link list of per CPU entries. */ struct rec_list { union { /* Used by kshark_load_data_records */ struct { /** next pointer, matches entry->next */ struct rec_list *next; /** pointer to the raw record data */ struct tep_record *rec; }; /** entry - Used for kshark_load_data_entries() */ struct kshark_entry entry; }; }; /** * rec_type defines what type of rec_list is being used. */ enum rec_type { REC_RECORD, REC_ENTRY, }; static void free_rec_list(struct rec_list **rec_list, int n_cpus, enum rec_type type) { struct rec_list *temp_rec; int cpu; for (cpu = 0; cpu < n_cpus; ++cpu) { while (rec_list[cpu]) { temp_rec = rec_list[cpu]; rec_list[cpu] = temp_rec->next; if (type == REC_RECORD) free_record(temp_rec->rec); free(temp_rec); } } free(rec_list); } static ssize_t get_records(struct kshark_context *kshark_ctx, struct rec_list ***rec_list, enum rec_type type) { struct kshark_event_handler *evt_handler; struct tep_event_filter *adv_filter; struct kshark_task_list *task; struct tep_record *rec; struct rec_list **temp_next; struct rec_list **cpu_list; struct rec_list *temp_rec; size_t count, total = 0; int n_cpus; int pid; int cpu; n_cpus = tracecmd_cpus(kshark_ctx->handle); cpu_list = calloc(n_cpus, sizeof(*cpu_list)); if (!cpu_list) return -ENOMEM; /* Just to shorten the name */ if (type == REC_ENTRY) adv_filter = kshark_ctx->advanced_event_filter; for (cpu = 0; cpu < n_cpus; ++cpu) { count = 0; cpu_list[cpu] = NULL; temp_next = &cpu_list[cpu]; rec = tracecmd_read_cpu_first(kshark_ctx->handle, cpu); while (rec) { *temp_next = temp_rec = calloc(1, sizeof(*temp_rec)); if (!temp_rec) goto fail; temp_rec->next = NULL; switch (type) { case REC_RECORD: temp_rec->rec = rec; pid = tep_data_pid(kshark_ctx->pevent, rec); break; case REC_ENTRY: { struct kshark_entry *entry; int ret; if (rec->missed_events) { /* * Insert a custom "missed_events" entry just * befor this record. */ entry = &temp_rec->entry; missed_events_action(kshark_ctx, rec, entry); temp_next = &temp_rec->next; ++count; /* Now allocate a new rec_list node and comtinue. */ *temp_next = temp_rec = calloc(1, sizeof(*temp_rec)); } entry = &temp_rec->entry; kshark_set_entry_values(kshark_ctx, rec, entry); /* Execute all plugin-provided actions (if any). */ evt_handler = kshark_ctx->event_handlers; while ((evt_handler = kshark_find_event_handler(evt_handler, entry->event_id))) { evt_handler->event_func(kshark_ctx, rec, entry); evt_handler = evt_handler->next; entry->visible &= ~KS_PLUGIN_UNTOUCHED_MASK; } pid = entry->pid; /* Apply event filtering. */ ret = FILTER_MATCH; if (adv_filter->filters) ret = tep_filter_match(adv_filter, rec); if (!kshark_show_event(kshark_ctx, entry->event_id) || ret != FILTER_MATCH) { unset_event_filter_flag(kshark_ctx, entry); } /* Apply CPU filtering. */ if (!kshark_show_cpu(kshark_ctx, entry->pid)) { entry->visible &= ~kshark_ctx->filter_mask; } /* Apply task filtering. */ if (!kshark_show_task(kshark_ctx, entry->pid)) { entry->visible &= ~kshark_ctx->filter_mask; } free_record(rec); break; } /* REC_ENTRY */ } task = kshark_add_task(kshark_ctx, pid); if (!task) { free_record(rec); goto fail; } temp_next = &temp_rec->next; ++count; rec = tracecmd_read_data(kshark_ctx->handle, cpu); } total += count; } *rec_list = cpu_list; return total; fail: free_rec_list(cpu_list, n_cpus, type); return -ENOMEM; } static int pick_next_cpu(struct rec_list **rec_list, int n_cpus, enum rec_type type) { uint64_t ts = 0; uint64_t rec_ts; int next_cpu = -1; int cpu; for (cpu = 0; cpu < n_cpus; ++cpu) { if (!rec_list[cpu]) continue; switch (type) { case REC_RECORD: rec_ts = rec_list[cpu]->rec->ts; break; case REC_ENTRY: rec_ts = rec_list[cpu]->entry.ts; break; } if (!ts || rec_ts < ts) { ts = rec_ts; next_cpu = cpu; } } return next_cpu; } /** * @brief Load the content of the trace data file into an array of * kshark_entries. This function provides an abstraction of the * entries from the raw data that is read, however the "latency" * and the "info" fields can be accessed only via the offset * into the file. This makes the access to these two fields much * slower. * If one or more filters are set, the "visible" fields of each entry * is updated according to the criteria provided by the filters. The * field "filter_mask" of the session's context is used to control the * level of visibility/invisibility of the filtered entries. * * @param kshark_ctx: Input location for context pointer. * @param data_rows: Output location for the trace data. The user is * responsible for freeing the elements of the outputted * array. * * @returns The size of the outputted data in the case of success, or a * negative error code on failure. */ ssize_t kshark_load_data_entries(struct kshark_context *kshark_ctx, struct kshark_entry ***data_rows) { struct kshark_entry **rows; struct rec_list **rec_list; enum rec_type type = REC_ENTRY; ssize_t count, total = 0; int n_cpus; if (*data_rows) free(*data_rows); total = get_records(kshark_ctx, &rec_list, type); if (total < 0) goto fail; n_cpus = tracecmd_cpus(kshark_ctx->handle); rows = calloc(total, sizeof(struct kshark_entry *)); if (!rows) goto fail_free; for (count = 0; count < total; count++) { int next_cpu; next_cpu = pick_next_cpu(rec_list, n_cpus, type); if (next_cpu >= 0) { rows[count] = &rec_list[next_cpu]->entry; rec_list[next_cpu] = rec_list[next_cpu]->next; } } free_rec_list(rec_list, n_cpus, type); *data_rows = rows; return total; fail_free: free_rec_list(rec_list, n_cpus, type); fail: fprintf(stderr, "Failed to allocate memory during data loading.\n"); return -ENOMEM; } /** * @brief Load the content of the trace data file into an array of * tep_records. Use this function only if you need fast access * to all fields of the record. * * @param kshark_ctx: Input location for the session context pointer. * @param data_rows: Output location for the trace data. Use free_record() * to free the elements of the outputted array. * * @returns The size of the outputted data in the case of success, or a * negative error code on failure. */ ssize_t kshark_load_data_records(struct kshark_context *kshark_ctx, struct tep_record ***data_rows) { struct tep_record **rows; struct tep_record *rec; struct rec_list **rec_list; struct rec_list *temp_rec; enum rec_type type = REC_RECORD; ssize_t count, total = 0; int n_cpus; total = get_records(kshark_ctx, &rec_list, type); if (total < 0) goto fail; n_cpus = tracecmd_cpus(kshark_ctx->handle); rows = calloc(total, sizeof(struct tep_record *)); if (!rows) goto fail_free; for (count = 0; count < total; count++) { int next_cpu; next_cpu = pick_next_cpu(rec_list, n_cpus, type); if (next_cpu >= 0) { rec = rec_list[next_cpu]->rec; rows[count] = rec; temp_rec = rec_list[next_cpu]; rec_list[next_cpu] = rec_list[next_cpu]->next; free(temp_rec); /* The record is still referenced in rows */ } } /* There should be no records left in rec_list */ free_rec_list(rec_list, n_cpus, type); *data_rows = rows; return total; fail_free: free_rec_list(rec_list, n_cpus, type); fail: fprintf(stderr, "Failed to allocate memory during data loading.\n"); return -ENOMEM; } static inline void free_ptr(void *ptr) { if (ptr) free(*(void **)ptr); } static bool data_matrix_alloc(size_t n_rows, uint64_t **offset_array, uint16_t **cpu_array, uint64_t **ts_array, uint16_t **pid_array, int **event_array) { if (offset_array) { *offset_array = calloc(n_rows, sizeof(**offset_array)); if (!*offset_array) return false; } if (cpu_array) { *cpu_array = calloc(n_rows, sizeof(**cpu_array)); if (!*cpu_array) goto free_offset; } if (ts_array) { *ts_array = calloc(n_rows, sizeof(**ts_array)); if (!*ts_array) goto free_cpu; } if (pid_array) { *pid_array = calloc(n_rows, sizeof(**pid_array)); if (!*pid_array) goto free_ts; } if (event_array) { *event_array = calloc(n_rows, sizeof(**event_array)); if (!*event_array) goto free_pid; } return true; free_pid: free_ptr(pid_array); free_ts: free_ptr(ts_array); free_cpu: free_ptr(cpu_array); free_offset: free_ptr(offset_array); fprintf(stderr, "Failed to allocate memory during data loading.\n"); return false; } /** * @brief Load the content of the trace data file into a table / matrix made * of columns / arrays of data. The user is responsible for freeing the * elements of the outputted array * * @param kshark_ctx: Input location for the session context pointer. * @param offset_array: Output location for the array of record offsets. * @param cpu_array: Output location for the array of CPU Ids. * @param ts_array: Output location for the array of timestamps. * @param pid_array: Output location for the array of Process Ids. * @param event_array: Output location for the array of Event Ids. * * @returns The size of the outputted arrays in the case of success, or a * negative error code on failure. */ size_t kshark_load_data_matrix(struct kshark_context *kshark_ctx, uint64_t **offset_array, uint16_t **cpu_array, uint64_t **ts_array, uint16_t **pid_array, int **event_array) { enum rec_type type = REC_ENTRY; struct rec_list **rec_list; ssize_t count, total = 0; bool status; int n_cpus; total = get_records(kshark_ctx, &rec_list, type); if (total < 0) goto fail; n_cpus = tracecmd_cpus(kshark_ctx->handle); status = data_matrix_alloc(total, offset_array, cpu_array, ts_array, pid_array, event_array); if (!status) goto fail_free; for (count = 0; count < total; count++) { int next_cpu; next_cpu = pick_next_cpu(rec_list, n_cpus, type); if (next_cpu >= 0) { struct rec_list *rec = rec_list[next_cpu]; struct kshark_entry *e = &rec->entry; if (offset_array) (*offset_array)[count] = e->offset; if (cpu_array) (*cpu_array)[count] = e->cpu; if (ts_array) (*ts_array)[count] = e->ts; if (pid_array) (*pid_array)[count] = e->pid; if (event_array) (*event_array)[count] = e->event_id; rec_list[next_cpu] = rec_list[next_cpu]->next; free(rec); } } /* There should be no entries left in rec_list. */ free_rec_list(rec_list, n_cpus, type); return total; fail_free: free_rec_list(rec_list, n_cpus, type); fail: fprintf(stderr, "Failed to allocate memory during data loading.\n"); return -ENOMEM; } static const char *kshark_get_latency(struct tep_handle *pe, struct tep_record *record) { if (!record) return NULL; trace_seq_reset(&seq); tep_data_latency_format(pe, &seq, record); return seq.buffer; } static const char *kshark_get_info(struct tep_handle *pe, struct tep_record *record, struct tep_event *event) { char *pos; if (!record || !event) return NULL; trace_seq_reset(&seq); tep_event_info(&seq, event, record); /* * The event info string contains a trailing newline. * Remove this newline. */ if ((pos = strchr(seq.buffer, '\n')) != NULL) *pos = '\0'; return seq.buffer; } /** * @brief This function allows for an easy access to the original value of the * Process Id as recorded in the tep_record object. The record is read * from the file only in the case of an entry being touched by a plugin. * Be aware that using the kshark_get_X_easy functions can be * inefficient if you need an access to more than one of the data fields * of the record. * * @param entry: Input location for the KernelShark entry. * * @returns The original value of the Process Id as recorded in the * tep_record object on success, otherwise negative error code. */ int kshark_get_pid_easy(struct kshark_entry *entry) { struct kshark_context *kshark_ctx = NULL; struct tep_record *data; int pid; if (!kshark_instance(&kshark_ctx)) return -ENODEV; if (entry->visible & KS_PLUGIN_UNTOUCHED_MASK) { pid = entry->pid; } else { /* * The entry has been touched by a plugin callback function. * Because of this we do not trust the value of "entry->pid". * * Currently the data reading operations are not thread-safe. * Use a mutex to protect the access. */ pthread_mutex_lock(&kshark_ctx->input_mutex); data = tracecmd_read_at(kshark_ctx->handle, entry->offset, NULL); pid = tep_data_pid(kshark_ctx->pevent, data); free_record(data); pthread_mutex_unlock(&kshark_ctx->input_mutex); } return pid; } /** * @brief This function allows for an easy access to the original value of the * Task name as recorded in the tep_record object. The record is read * from the file only in the case of an entry being touched by a plugin. * Be aware that using the kshark_get_X_easy functions can be * inefficient if you need an access to more than one of the data fields * of the record. * * @param entry: Input location for the KernelShark entry. * * @returns The original name of the task, retrieved from the Process Id * recorded in the tep_record object on success, otherwise NULL. */ const char *kshark_get_task_easy(struct kshark_entry *entry) { struct kshark_context *kshark_ctx = NULL; int pid = kshark_get_pid_easy(entry); if (pid < 0) return NULL; kshark_instance(&kshark_ctx); return tep_data_comm_from_pid(kshark_ctx->pevent, pid); } /** * @brief This function allows for an easy access to the latency information * recorded in the tep_record object. The record is read from the file * using the offset field of kshark_entry. Be aware that using the * kshark_get_X_easy functions can be inefficient if you need an access * to more than one of the data fields of the record. * * @param entry: Input location for the KernelShark entry. * * @returns On success the function returns a string showing the latency * information, coded into 5 fields: * interrupts disabled, need rescheduling, hard/soft interrupt, * preempt count and lock depth. On failure it returns NULL. */ const char *kshark_get_latency_easy(struct kshark_entry *entry) { struct kshark_context *kshark_ctx = NULL; struct tep_record *data; const char *lat; if (!kshark_instance(&kshark_ctx)) return NULL; if (entry->event_id < 0) return NULL; /* * Currently the data reading operations are not thread-safe. * Use a mutex to protect the access. */ pthread_mutex_lock(&kshark_ctx->input_mutex); data = tracecmd_read_at(kshark_ctx->handle, entry->offset, NULL); lat = kshark_get_latency(kshark_ctx->pevent, data); free_record(data); pthread_mutex_unlock(&kshark_ctx->input_mutex); return lat; } /** * @brief This function allows for an easy access to the original value of the * Event Id as recorded in the tep_record object. The record is read * from the file only in the case of an entry being touched by a plugin. * Be aware that using the kshark_get_X_easy functions can be * inefficient if you need an access to more than one of the data fields * of the record. * * @param entry: Input location for the KernelShark entry. * * @returns The original value of the Event Id as recorded in the * tep_record object on success, otherwise negative error code. */ int kshark_get_event_id_easy(struct kshark_entry *entry) { struct kshark_context *kshark_ctx = NULL; struct tep_record *data; int event_id; if (!kshark_instance(&kshark_ctx)) return -ENODEV; if (entry->visible & KS_PLUGIN_UNTOUCHED_MASK) { event_id = entry->event_id; } else { /* * The entry has been touched by a plugin callback function. * Because of this we do not trust the value of * "entry->event_id". * * Currently the data reading operations are not thread-safe. * Use a mutex to protect the access. */ pthread_mutex_lock(&kshark_ctx->input_mutex); data = tracecmd_read_at(kshark_ctx->handle, entry->offset, NULL); event_id = tep_data_type(kshark_ctx->pevent, data); free_record(data); pthread_mutex_unlock(&kshark_ctx->input_mutex); } return (event_id == -1)? -EFAULT : event_id; } /** * @brief This function allows for an easy access to the original name of the * trace event as recorded in the tep_record object. The record is read * from the file only in the case of an entry being touched by a plugin. * Be aware that using the kshark_get_X_easy functions can be * inefficient if you need an access to more than one of the data fields * of the record. * * @param entry: Input location for the KernelShark entry. * * @returns The mane of the trace event recorded in the tep_record object on * success, otherwise "[UNKNOWN EVENT]" or NULL. */ const char *kshark_get_event_name_easy(struct kshark_entry *entry) { struct kshark_context *kshark_ctx = NULL; struct tep_event *event; int event_id = kshark_get_event_id_easy(entry); if (event_id == -EFAULT) return NULL; kshark_instance(&kshark_ctx); if (event_id < 0) { switch (event_id) { case KS_EVENT_OVERFLOW: return missed_events_dump(kshark_ctx, entry, false); default: return NULL; } } /* * Currently the data reading operations are not thread-safe. * Use a mutex to protect the access. */ pthread_mutex_lock(&kshark_ctx->input_mutex); event = tep_find_event(kshark_ctx->pevent, event_id); pthread_mutex_unlock(&kshark_ctx->input_mutex); if (event) return event->name; return "[UNKNOWN EVENT]"; } /** * @brief This function allows for an easy access to the tep_record's info * streang. The record is read from the file using the offset field of * kshark_entry. Be aware that using the kshark_get_X_easy functions can * be inefficient if you need an access to more than one of the data * fields of the record. * * @param entry: Input location for the KernelShark entry. * * @returns A string showing the data output of the trace event on success, * otherwise NULL. */ const char *kshark_get_info_easy(struct kshark_entry *entry) { struct kshark_context *kshark_ctx = NULL; struct tep_event *event; struct tep_record *data; const char *info = NULL; int event_id; if (!kshark_instance(&kshark_ctx)) return NULL; if (entry->event_id < 0) { switch (entry->event_id) { case KS_EVENT_OVERFLOW: return missed_events_dump(kshark_ctx, entry, true); default: return NULL; } } /* * Currently the data reading operations are not thread-safe. * Use a mutex to protect the access. */ pthread_mutex_lock(&kshark_ctx->input_mutex); data = tracecmd_read_at(kshark_ctx->handle, entry->offset, NULL); event_id = tep_data_type(kshark_ctx->pevent, data); event = tep_find_event(kshark_ctx->pevent, event_id); if (event) info = kshark_get_info(kshark_ctx->pevent, data, event); free_record(data); pthread_mutex_unlock(&kshark_ctx->input_mutex); return info; } /** * @brief Convert the timestamp of the trace record (nanosecond precision) into * seconds and microseconds. * * @param time: Input location for the timestamp. * @param sec: Output location for the value of the seconds. * @param usec: Output location for the value of the microseconds. */ void kshark_convert_nano(uint64_t time, uint64_t *sec, uint64_t *usec) { uint64_t s; *sec = s = time / 1000000000ULL; *usec = (time - s * 1000000000ULL) / 1000; } /** * @brief Dump into a string the content a custom entry. The function allocates * a null terminated string and returns a pointer to this string. * * @param kshark_ctx: Input location for the session context pointer. * @param entry: A Kernel Shark entry to be printed. * @param info_func: * * @returns The returned string contains a semicolon-separated list of data * fields. The user has to free the returned string. */ char* kshark_dump_custom_entry(struct kshark_context *kshark_ctx, const struct kshark_entry *entry, kshark_custom_info_func info_func) { const char *event_name, *task, *info; char *entry_str; int size = 0; task = tep_data_comm_from_pid(kshark_ctx->pevent, entry->pid); event_name = info_func(kshark_ctx, entry, false); info = info_func(kshark_ctx, entry, true); size = asprintf(&entry_str, "%li; %s-%i; CPU %i; ; %s; %s", entry->ts, task, entry->pid, entry->cpu, event_name, info); if (size > 0) return entry_str; return NULL; } /** * @brief Dump into a string the content of one entry. The function allocates * a null terminated string and returns a pointer to this string. The * user has to free the returned string. * * @param entry: A Kernel Shark entry to be printed. * * @returns The returned string contains a semicolon-separated list of data * fields. */ char* kshark_dump_entry(const struct kshark_entry *entry) { const char *event_name, *task, *lat, *info; struct kshark_context *kshark_ctx; char *temp_str, *entry_str; int size = 0; kshark_ctx = NULL; if (!kshark_instance(&kshark_ctx) || !init_thread_seq()) return NULL; task = tep_data_comm_from_pid(kshark_ctx->pevent, entry->pid); if (entry->event_id >= 0) { struct tep_event *event; struct tep_record *data; data = tracecmd_read_at(kshark_ctx->handle, entry->offset, NULL); event = tep_find_event(kshark_ctx->pevent, entry->event_id); event_name = event? event->name : "[UNKNOWN EVENT]"; lat = kshark_get_latency(kshark_ctx->pevent, data); size = asprintf(&temp_str, "%li; %s-%i; CPU %i; %s;", entry->ts, task, entry->pid, entry->cpu, lat); info = kshark_get_info(kshark_ctx->pevent, data, event); if (size > 0) { size = asprintf(&entry_str, "%s %s; %s; 0x%x", temp_str, event_name, info, entry->visible); free(temp_str); } free_record(data); if (size < 1) entry_str = NULL; } else { switch (entry->event_id) { case KS_EVENT_OVERFLOW: entry_str = kshark_dump_custom_entry(kshark_ctx, entry, missed_events_dump); default: entry_str = NULL; } } return entry_str; } /** * @brief Binary search inside a time-sorted array of kshark_entries. * * @param time: The value of time to search for. * @param data: Input location for the trace data. * @param l: Array index specifying the lower edge of the range to search in. * @param h: Array index specifying the upper edge of the range to search in. * * @returns On success, the first kshark_entry inside the range, having a timestamp equal or bigger than "time". If all entries inside the range have timestamps greater than "time" the function returns BSEARCH_ALL_GREATER (negative value). If all entries inside the range have timestamps smaller than "time" the function returns BSEARCH_ALL_SMALLER (negative value). */ ssize_t kshark_find_entry_by_time(uint64_t time, struct kshark_entry **data, size_t l, size_t h) { size_t mid; if (data[l]->ts > time) return BSEARCH_ALL_GREATER; if (data[h]->ts < time) return BSEARCH_ALL_SMALLER; /* * After executing the BSEARCH macro, "l" will be the index of the last * entry having timestamp < time and "h" will be the index of the first * entry having timestamp >= time. */ BSEARCH(h, l, data[mid]->ts < time); return h; } /** * @brief Binary search inside a time-sorted array of tep_records. * * @param time: The value of time to search for. * @param data: Input location for the trace data. * @param l: Array index specifying the lower edge of the range to search in. * @param h: Array index specifying the upper edge of the range to search in. * * @returns On success, the first tep_record inside the range, having a timestamp equal or bigger than "time". If all entries inside the range have timestamps greater than "time" the function returns BSEARCH_ALL_GREATER (negative value). If all entries inside the range have timestamps smaller than "time" the function returns BSEARCH_ALL_SMALLER (negative value). */ ssize_t kshark_find_record_by_time(uint64_t time, struct tep_record **data, size_t l, size_t h) { size_t mid; if (data[l]->ts > time) return BSEARCH_ALL_GREATER; if (data[h]->ts < time) return BSEARCH_ALL_SMALLER; /* * After executing the BSEARCH macro, "l" will be the index of the last * record having timestamp < time and "h" will be the index of the * first record having timestamp >= time. */ BSEARCH(h, l, data[mid]->ts < time); return h; } /** * @brief Simple Pid matching function to be user for data requests. * * @param kshark_ctx: Input location for the session context pointer. * @param e: kshark_entry to be checked. * @param pid: Matching condition value. * * @returns True if the Pid of the entry matches the value of "pid". * Else false. */ bool kshark_match_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid) { if (e->pid == pid) return true; return false; } /** * @brief Simple Cpu matching function to be user for data requests. * * @param kshark_ctx: Input location for the session context pointer. * @param e: kshark_entry to be checked. * @param cpu: Matching condition value. * * @returns True if the Cpu of the entry matches the value of "cpu". * Else false. */ bool kshark_match_cpu(struct kshark_context *kshark_ctx, struct kshark_entry *e, int cpu) { if (e->cpu == cpu) return true; return false; } /** * @brief Create Data request. The request defines the properties of the * requested kshark_entry. * * @param first: Array index specifying the position inside the array from * where the search starts. * @param n: Number of array elements to search in. * @param cond: Matching condition function. * @param val: Matching condition value, used by the Matching condition * function. * @param vis_only: If true, a visible entry is requested. * @param vis_mask: If "vis_only" is true, use this mask to specify the level * of visibility of the requested entry. * * @returns Pointer to kshark_entry_request on success, or NULL on failure. * The user is responsible for freeing the returned * kshark_entry_request. */ struct kshark_entry_request * kshark_entry_request_alloc(size_t first, size_t n, matching_condition_func cond, int val, bool vis_only, int vis_mask) { struct kshark_entry_request *req = malloc(sizeof(*req)); if (!req) { fprintf(stderr, "Failed to allocate memory for entry request.\n"); return NULL; } req->next = NULL; req->first = first; req->n = n; req->cond = cond; req->val = val; req->vis_only = vis_only; req->vis_mask = vis_mask; return req; } /** * @brief Free all Data requests in a given list. * @param req: Intput location for the Data request list. */ void kshark_free_entry_request(struct kshark_entry_request *req) { struct kshark_entry_request *last; while (req) { last = req; req = req->next; free(last); } } /** Dummy entry, used to indicate the existence of filtered entries. */ const struct kshark_entry dummy_entry = { .next = NULL, .visible = 0x00, .cpu = KS_FILTERED_BIN, .pid = KS_FILTERED_BIN, .event_id = -1, .offset = 0, .ts = 0 }; static const struct kshark_entry * get_entry(const struct kshark_entry_request *req, struct kshark_entry **data, ssize_t *index, ssize_t start, ssize_t end, int inc) { struct kshark_context *kshark_ctx = NULL; const struct kshark_entry *e = NULL; ssize_t i; if (index) *index = KS_EMPTY_BIN; if (!kshark_instance(&kshark_ctx)) return e; /* * We will do a sanity check in order to protect against infinite * loops. */ assert((inc > 0 && start < end) || (inc < 0 && start > end)); for (i = start; i != end; i += inc) { if (req->cond(kshark_ctx, data[i], req->val)) { /* * Data satisfying the condition has been found. */ if (req->vis_only && !(data[i]->visible & req->vis_mask)) { /* This data entry has been filtered. */ e = &dummy_entry; } else { e = data[i]; break; } } } if (index) { if (e) *index = (e->cpu != KS_FILTERED_BIN)? i : KS_FILTERED_BIN; else *index = KS_EMPTY_BIN; } return e; } /** * @brief Search for an entry satisfying the requirements of a given Data * request. Start from the position provided by the request and go * searching in the direction of the increasing timestamps (front). * * @param req: Input location for Data request. * @param data: Input location for the trace data. * @param index: Optional output location for the index of the returned * entry inside the array. * * @returns Pointer to the first entry satisfying the matching conditionon * success, or NULL on failure. * In the special case when some entries, satisfying the Matching * condition function have been found, but all these entries have * been discarded because of the visibility criteria (filtered * entries), the function returns a pointer to a special * "Dummy entry". */ const struct kshark_entry * kshark_get_entry_front(const struct kshark_entry_request *req, struct kshark_entry **data, ssize_t *index) { ssize_t end = req->first + req->n; return get_entry(req, data, index, req->first, end, +1); } /** * @brief Search for an entry satisfying the requirements of a given Data * request. Start from the position provided by the request and go * searching in the direction of the decreasing timestamps (back). * * @param req: Input location for Data request. * @param data: Input location for the trace data. * @param index: Optional output location for the index of the returned * entry inside the array. * * @returns Pointer to the first entry satisfying the matching conditionon * success, or NULL on failure. * In the special case when some entries, satisfying the Matching * condition function have been found, but all these entries have * been discarded because of the visibility criteria (filtered * entries), the function returns a pointer to a special * "Dummy entry". */ const struct kshark_entry * kshark_get_entry_back(const struct kshark_entry_request *req, struct kshark_entry **data, ssize_t *index) { ssize_t end = req->first - req->n; if (end < 0) end = -1; return get_entry(req, data, index, req->first, end, -1); } trace-cmd-2.8.3/kernel-shark/src/libkshark.h000066400000000000000000000434011351617527000206740ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file libkshark.h * @brief API for processing of FTRACE (trace-cmd) data. */ #ifndef _LIB_KSHARK_H #define _LIB_KSHARK_H // C #include #include #include // Json-C #include #ifdef __cplusplus extern "C" { #endif // trace-cmd #include "trace-cmd/trace-cmd.h" #include "trace-cmd/trace-filter-hash.h" #include "traceevent/event-parse.h" // KernelShark #include "libkshark-plugin.h" /** * Kernel Shark entry contains all information from one trace record needed * in order to visualize the time-series of trace records. The part of the * data which is not directly required for the visualization (latency, record * info etc.) is available on-demand via the offset into the trace file. */ struct kshark_entry { /** Pointer to the next (in time) kshark_entry on the same CPU core. */ struct kshark_entry *next; /* MUST BE FIRST ENTRY */ /** * A bit mask controlling the visibility of the entry. A value of OxFF * would mean that the entry is visible everywhere. Use * kshark_filter_masks to check the level of visibility/invisibility * of the entry. */ uint16_t visible; /** The CPU core of the record. */ int16_t cpu; /** The PID of the task the record was generated. */ int32_t pid; /** Unique Id ot the trace event type. */ int32_t event_id; /** The offset into the trace file, used to find the record. */ uint64_t offset; /** * The time of the record in nano seconds. The value is taken from * the timestamps within the trace data file, which are architecture * dependent. The time usually is the timestamp from when the system * started. */ uint64_t ts; }; /** Size of the task's hash table. */ #define KS_TASK_HASH_SIZE 256 /** Linked list of tasks. */ struct kshark_task_list { /** Pointer to the next task's PID. */ struct kshark_task_list *next; /** PID of a task. */ int pid; }; /** Structure representing a kshark session. */ struct kshark_context { /** Input handle for the trace data file. */ struct tracecmd_input *handle; /** Page event used to parse the page. */ struct tep_handle *pevent; /** Hash table of task PIDs. */ struct kshark_task_list *tasks[KS_TASK_HASH_SIZE]; /** A mutex, used to protect the access to the input file. */ pthread_mutex_t input_mutex; /** Hash of tasks to filter on. */ struct tracecmd_filter_id *show_task_filter; /** Hash of tasks to not display. */ struct tracecmd_filter_id *hide_task_filter; /** Hash of events to filter on. */ struct tracecmd_filter_id *show_event_filter; /** Hash of events to not display. */ struct tracecmd_filter_id *hide_event_filter; /** Hash of CPUs to filter on. */ struct tracecmd_filter_id *show_cpu_filter; /** Hash of CPUs to not display. */ struct tracecmd_filter_id *hide_cpu_filter; /** * Bit mask, controlling the visibility of the entries after filtering. * If given bit is set here, all entries which are filtered-out will * have this bit unset in their "visible" fields. */ uint8_t filter_mask; /** * Filter allowing sophisticated filtering based on the content of * the event. */ struct tep_event_filter *advanced_event_filter; /** List of Data collections. */ struct kshark_entry_collection *collections; /** List of Plugins. */ struct kshark_plugin_list *plugins; /** List of Plugin Event handlers. */ struct kshark_event_handler *event_handlers; }; bool kshark_instance(struct kshark_context **kshark_ctx); bool kshark_open(struct kshark_context *kshark_ctx, const char *file); ssize_t kshark_load_data_entries(struct kshark_context *kshark_ctx, struct kshark_entry ***data_rows); ssize_t kshark_load_data_records(struct kshark_context *kshark_ctx, struct tep_record ***data_rows); size_t kshark_load_data_matrix(struct kshark_context *kshark_ctx, uint64_t **offset_array, uint16_t **cpu_array, uint64_t **ts_array, uint16_t **pid_array, int **event_array); ssize_t kshark_get_task_pids(struct kshark_context *kshark_ctx, int **pids); void kshark_close(struct kshark_context *kshark_ctx); void kshark_free(struct kshark_context *kshark_ctx); int kshark_get_pid_easy(struct kshark_entry *entry); const char *kshark_get_task_easy(struct kshark_entry *entry); const char *kshark_get_latency_easy(struct kshark_entry *entry); int kshark_get_event_id_easy(struct kshark_entry *entry); const char *kshark_get_event_name_easy(struct kshark_entry *entry); const char *kshark_get_info_easy(struct kshark_entry *entry); void kshark_convert_nano(uint64_t time, uint64_t *sec, uint64_t *usec); char* kshark_dump_entry(const struct kshark_entry *entry); /** * Custom entry info function type. To be user for dumping info for custom * KernelShark entryes. */ typedef const char *(kshark_custom_info_func)(struct kshark_context *, const struct kshark_entry *, bool); char* kshark_dump_custom_entry(struct kshark_context *kshark_ctx, const struct kshark_entry *entry, kshark_custom_info_func info_func); /** Bit masks used to control the visibility of the entry after filtering. */ enum kshark_filter_masks { /** * Use this mask to check the visibility of the entry in the text * view. */ KS_TEXT_VIEW_FILTER_MASK = 1 << 0, /** * Use this mask to check the visibility of the entry in the graph * view. */ KS_GRAPH_VIEW_FILTER_MASK = 1 << 1, /** Special mask used whene filtering events. */ KS_EVENT_VIEW_FILTER_MASK = 1 << 2, /* The next 4 bits are reserved for more KS_X_VIEW_FILTER_MASKs. */ /** * Use this mask to check if the content of the entry has been accessed * by a plugin-defined function. */ KS_PLUGIN_UNTOUCHED_MASK = 1 << 7 }; /** Filter type identifier. */ enum kshark_filter_type { /** Dummy filter identifier reserved for future use. */ KS_NO_FILTER, /** * Identifier of the filter, used to specified the events to be shown. */ KS_SHOW_EVENT_FILTER, /** * Identifier of the filter, used to specified the events to be * filtered-out. */ KS_HIDE_EVENT_FILTER, /** * Identifier of the filter, used to specified the tasks to be shown. */ KS_SHOW_TASK_FILTER, /** * Identifier of the filter, used to specified the tasks to be * filtered-out. */ KS_HIDE_TASK_FILTER, /** * Identifier of the filter, used to specified the CPUs to be shown. */ KS_SHOW_CPU_FILTER, /** * Identifier of the filter, used to specified the CPUs to be * filtered-out. */ KS_HIDE_CPU_FILTER, }; void kshark_filter_add_id(struct kshark_context *kshark_ctx, int filter_id, int id); void kshark_filter_clear(struct kshark_context *kshark_ctx, int filter_id); bool kshark_filter_is_set(struct kshark_context *kshark_ctx); void kshark_filter_entries(struct kshark_context *kshark_ctx, struct kshark_entry **data, size_t n_entries); void kshark_clear_all_filters(struct kshark_context *kshark_ctx, struct kshark_entry **data, size_t n_entries); /** Search failed identifiers. */ enum kshark_search_failed { /** All entries have timestamps greater timestamps. */ BSEARCH_ALL_GREATER = -1, /** All entries have timestamps smaller timestamps. */ BSEARCH_ALL_SMALLER = -2, }; /** General purpose Binary search macro. */ #define BSEARCH(h, l, cond) \ ({ \ while (h - l > 1) { \ mid = (l + h) / 2; \ if (cond) \ l = mid; \ else \ h = mid; \ } \ }) ssize_t kshark_find_entry_by_time(uint64_t time, struct kshark_entry **data_rows, size_t l, size_t h); ssize_t kshark_find_record_by_time(uint64_t time, struct tep_record **data_rows, size_t l, size_t h); bool kshark_match_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid); bool kshark_match_cpu(struct kshark_context *kshark_ctx, struct kshark_entry *e, int cpu); /** * Empty bin identifier. * KS_EMPTY_BIN is used to reset entire arrays to empty with memset(), thus it * must be -1 for that to work. */ #define KS_EMPTY_BIN -1 /** Filtered bin identifier. */ #define KS_FILTERED_BIN -2 /** Overflow Event identifier. */ #define KS_EVENT_OVERFLOW (-EOVERFLOW) /** Matching condition function type. To be user for data requests */ typedef bool (matching_condition_func)(struct kshark_context*, struct kshark_entry*, int); /** * Data request structure, defining the properties of the required * kshark_entry. */ struct kshark_entry_request { /** Pointer to the next Data request. */ struct kshark_entry_request *next; /** * Array index specifying the position inside the array from where * the search starts. */ size_t first; /** Number of array elements to search in. */ size_t n; /** Matching condition function. */ matching_condition_func *cond; /** * Matching condition value, used by the Matching condition function. */ int val; /** If true, a visible entry is requested. */ bool vis_only; /** * If "vis_only" is true, use this mask to specify the level of * visibility of the requested entry. */ uint8_t vis_mask; }; struct kshark_entry_request * kshark_entry_request_alloc(size_t first, size_t n, matching_condition_func cond, int val, bool vis_only, int vis_mask); void kshark_free_entry_request(struct kshark_entry_request *req); const struct kshark_entry * kshark_get_entry_front(const struct kshark_entry_request *req, struct kshark_entry **data, ssize_t *index); const struct kshark_entry * kshark_get_entry_back(const struct kshark_entry_request *req, struct kshark_entry **data, ssize_t *index); /** * Data collections are used to optimize the search for an entry having an * abstract property, defined by a Matching condition function and a value. * When a collection is processed, the data which is relevant for the * collection is enclosed in "Data intervals", defined by pairs of "Resume" and * "Break" points. It is guaranteed that the data outside of the intervals * contains no entries satisfying the abstract matching condition. However, the * intervals may (will) contain data that do not satisfy the matching condition. * Once defined, the Data collection can be used when searching for an entry * having the same (ore related) abstract property. The collection allows to * ignore the irrelevant data, thus it eliminates the linear worst-case time * complexity of the search. */ struct kshark_entry_collection { /** Pointer to the next Data collection. */ struct kshark_entry_collection *next; /** Matching condition function, used to define the collections. */ matching_condition_func *cond; /** * Matching condition value, used by the Matching condition finction * to define the collections. */ int val; /** * Array of indexes defining the beginning of each individual data * interval. */ size_t *resume_points; /** * Array of indexes defining the end of each individual data interval. */ size_t *break_points; /** Number of data intervals in this collection. */ size_t size; }; struct kshark_entry_collection * kshark_add_collection_to_list(struct kshark_context *kshark_ctx, struct kshark_entry_collection **col_list, struct kshark_entry **data, size_t n_rows, matching_condition_func cond, int val, size_t margin); struct kshark_entry_collection * kshark_register_data_collection(struct kshark_context *kshark_ctx, struct kshark_entry **data, size_t n_rows, matching_condition_func cond, int val, size_t margin); void kshark_unregister_data_collection(struct kshark_entry_collection **col, matching_condition_func cond, int val); struct kshark_entry_collection * kshark_find_data_collection(struct kshark_entry_collection *col, matching_condition_func cond, int val); void kshark_reset_data_collection(struct kshark_entry_collection *col); void kshark_free_collection_list(struct kshark_entry_collection *col); const struct kshark_entry * kshark_get_collection_entry_front(struct kshark_entry_request **req, struct kshark_entry **data, const struct kshark_entry_collection *col, ssize_t *index); const struct kshark_entry * kshark_get_collection_entry_back(struct kshark_entry_request **req, struct kshark_entry **data, const struct kshark_entry_collection *col, ssize_t *index); /** Structure representing a KernelShark Configuration document. */ struct kshark_config_doc { /** Document format identifier. */ int format; /** Configuration document instance. */ void *conf_doc; }; /** Configuration format identifiers. */ enum kshark_config_formats { /** Unformatted Configuration document identifier. */ KS_CONFIG_AUTO = 0, /** * String Configuration document identifier. The String format is * meant to be used only by kshark_config_doc_add() and * kshark_config_doc_get(), when adding/getting simple string fields. */ KS_CONFIG_STRING, /** Json Configuration document identifier. */ KS_CONFIG_JSON, }; /** * Field name for the Configuration document describing the Hide Event filter. */ #define KS_HIDE_EVENT_FILTER_NAME "hide event filter" /** * Field name for the Configuration document describing the Show Event filter. */ #define KS_SHOW_EVENT_FILTER_NAME "show event filter" /** * Field name for the Configuration document describing the Hide Task filter. */ #define KS_HIDE_TASK_FILTER_NAME "hide task filter" /** * Field name for the Configuration document describing the Show Task filter. */ #define KS_SHOW_TASK_FILTER_NAME "show task filter" /** * Field name for the Configuration document describing the Hide Task filter. */ #define KS_HIDE_CPU_FILTER_NAME "hide cpu filter" /** * Field name for the Configuration document describing the Show Task filter. */ #define KS_SHOW_CPU_FILTER_NAME "show cpu filter" /** * Field name for the Configuration document describing the Advanced event * filter. */ #define KS_ADV_EVENT_FILTER_NAME "adv event filter" /** * Field name for the Configuration document describing user-specified filter * mask. */ #define KS_USER_FILTER_MASK_NAME "filter mask" /** * Field name for the Configuration document describing the state of the Vis. * model. */ #define KS_HISTO_NAME "vis. model" /** * Field name for the Configuration document describing the currently loaded * trace data file. */ #define KS_DATA_SOURCE_NAME "trace data" struct kshark_config_doc * kshark_config_alloc(enum kshark_config_formats); struct kshark_config_doc * kshark_config_new(const char *type, enum kshark_config_formats); void kshark_free_config_doc(struct kshark_config_doc *conf); struct kshark_config_doc * kshark_record_config_new(enum kshark_config_formats); struct kshark_config_doc * kshark_filter_config_new(enum kshark_config_formats); struct kshark_config_doc *kshark_string_config_alloc(void); bool kshark_type_check(struct kshark_config_doc *conf, const char *type); bool kshark_config_doc_add(struct kshark_config_doc *conf, const char *key, struct kshark_config_doc *val); bool kshark_config_doc_get(struct kshark_config_doc *conf, const char *key, struct kshark_config_doc *val); struct kshark_trace_histo; struct kshark_config_doc * kshark_export_trace_file(const char *file, enum kshark_config_formats format); const char *kshark_import_trace_file(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf); struct kshark_config_doc * kshark_export_model(struct kshark_trace_histo *histo, enum kshark_config_formats format); bool kshark_import_model(struct kshark_trace_histo *histo, struct kshark_config_doc *conf); bool kshark_export_adv_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc **conf); bool kshark_import_adv_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf); bool kshark_export_event_filter(struct tep_handle *pevent, struct tracecmd_filter_id *filter, const char *filter_name, struct kshark_config_doc *conf); bool kshark_import_event_filter(struct tep_handle *pevent, struct tracecmd_filter_id *filter, const char *filter_name, struct kshark_config_doc *conf); bool kshark_export_user_mask(struct kshark_context *kshark_ctx, struct kshark_config_doc **conf); bool kshark_import_user_mask(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf); bool kshark_export_filter_array(struct tracecmd_filter_id *filter, const char *filter_name, struct kshark_config_doc *conf); bool kshark_import_filter_array(struct tracecmd_filter_id *filter, const char *filter_name, struct kshark_config_doc *conf); bool kshark_export_all_event_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc **conf); bool kshark_export_all_task_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc **conf); bool kshark_export_all_cpu_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc **conf); struct kshark_config_doc * kshark_export_all_filters(struct kshark_context *kshark_ctx, enum kshark_config_formats format); bool kshark_import_all_event_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf); bool kshark_import_all_task_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf); bool kshark_import_all_cpu_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf); bool kshark_import_all_filters(struct kshark_context *kshark_ctx, struct kshark_config_doc *conf); bool kshark_save_config_file(const char *file_name, struct kshark_config_doc *conf); struct kshark_config_doc *kshark_open_config_file(const char *file_name, const char *type); struct kshark_config_doc *kshark_json_to_conf(struct json_object *jobj); #ifdef __cplusplus } #endif #endif // _LIB_KSHARK_H trace-cmd-2.8.3/kernel-shark/src/plugins/000077500000000000000000000000001351617527000202305ustar00rootroot00000000000000trace-cmd-2.8.3/kernel-shark/src/plugins/CMakeLists.txt000066400000000000000000000022241351617527000227700ustar00rootroot00000000000000message("\n src/plugins ...") function(BUILD_PLUGIN) set(options ) set(oneValueArgs NAME) set(multiValueArgs SOURCE) cmake_parse_arguments(ADD_PLUGIN "${options}" ${oneValueArgs} ${multiValueArgs} ${ARGN}) message(STATUS ${ADD_PLUGIN_NAME}) add_library(${ADD_PLUGIN_NAME} SHARED ${ADD_PLUGIN_SOURCE}) set_target_properties(${ADD_PLUGIN_NAME} PROPERTIES PREFIX "plugin-") target_link_libraries(${ADD_PLUGIN_NAME} kshark) endfunction() set(PLUGIN_LIST "") BUILD_PLUGIN(NAME sched_events SOURCE sched_events.c SchedEvents.cpp) list(APPEND PLUGIN_LIST "sched_events default") # This plugin will be loaded by default # list(APPEND PLUGIN_LIST "sched_events") # This plugin isn't loaded by default BUILD_PLUGIN(NAME missed_events SOURCE missed_events.c MissedEvents.cpp) list(APPEND PLUGIN_LIST "missed_events default") # This plugin will be loaded by default install(TARGETS sched_events missed_events LIBRARY DESTINATION ${KS_PLUGIN_INSTALL_PREFIX}) set(PLUGINS ${PLUGIN_LIST} PARENT_SCOPE) trace-cmd-2.8.3/kernel-shark/src/plugins/MissedEvents.cpp000066400000000000000000000070251351617527000233510ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file MissedEvents.cpp * @brief Plugin for visualization of events, missed due to overflow of the ring buffer. */ // C++ #include // KernelShark #include "libkshark.h" #include "plugins/missed_events.h" #include "KsPlotTools.hpp" #include "KsPlugins.hpp" using namespace KsPlot; /** * This class represents the graphical element of the KernelShark marker for * Missed events. */ class MissedEventsMark : public PlotObject { public: /** Create a default Missed events marker. */ MissedEventsMark() : _base(0, 0), _height(0) { _color = {0, 0, 255}; _size = 2; } /** * @brief Create and position a Missed events marker. * * @param p: Base point of the marker. * @param h: vertical size (height) of the marker. */ MissedEventsMark(const Point &p, int h) : _base(p.x(), p.y()), _height(h) { _color = {0, 0, 255}; _size = 2; } /** Set the Base point of the marker. */ void setBase(const Point &p) {_base.set(p.x(), p.y());} /** Set the vertical size (height) point of the marker. */ void setHeight(int h) {_height = h;} private: /** Base point of the Mark's line. */ Point _base; /** The vertical size (height) of the Mark. */ int _height; void _draw(const Color &col, float size = 1.) const override; }; void MissedEventsMark::_draw(const Color &col, float size) const { Point p(_base.x(), _base.y() - _height); drawLine(_base, p, col, size); Rectangle rec; rec.setPoint(0, p.x(), p.y()); rec.setPoint(1, p.x() - _height / 4, p.y()); rec.setPoint(2, p.x() - _height / 4, p.y() + _height / 4); rec.setPoint(3, p.x(), p.y() + _height / 4); rec._color = col; rec.draw(); } //! @cond Doxygen_Suppress #define PLUGIN_MAX_ENTRIES 10000 #define KS_TASK_COLLECTION_MARGIN 25 //! @endcond static void pluginDraw(kshark_context *kshark_ctx, KsCppArgV *argvCpp, int val, int draw_action) { int height = argvCpp->_graph->getHeight(); const kshark_entry *entry(nullptr); MissedEventsMark *mark; ssize_t index; int nBins = argvCpp->_graph->size(); for (int bin = 0; bin < nBins; ++bin) { if (draw_action == KSHARK_PLUGIN_TASK_DRAW) entry = ksmodel_get_task_missed_events(argvCpp->_histo, bin, val, nullptr, &index); if (draw_action == KSHARK_PLUGIN_CPU_DRAW) entry = ksmodel_get_cpu_missed_events(argvCpp->_histo, bin, val, nullptr, &index); if (entry) { mark = new MissedEventsMark(argvCpp->_graph->getBin(bin)._base, height); argvCpp->_shapes->push_front(mark); } } } /** * @brief Plugin's draw function. * * @param argv_c: A C pointer to be converted to KsCppArgV (C++ struct). * @param val: Process or CPU Id value. * @param draw_action: Draw action identifier. */ void draw_missed_events(kshark_cpp_argv *argv_c, int val, int draw_action) { kshark_context *kshark_ctx(NULL); if (!kshark_instance(&kshark_ctx)) return; KsCppArgV *argvCpp = KS_ARGV_TO_CPP(argv_c); /* * Plotting the "Missed events" makes sense only in the case of a deep * zoom. Here we set a threshold based on the total number of entries * being visualized by the model. * Don't be afraid to play with different values for this threshold. */ if (argvCpp->_histo->tot_count > PLUGIN_MAX_ENTRIES) return; try { pluginDraw(kshark_ctx, argvCpp, val, draw_action); } catch (const std::exception &exc) { std::cerr << "Exception in MissedEvents\n" << exc.what(); } } trace-cmd-2.8.3/kernel-shark/src/plugins/SchedEvents.cpp000066400000000000000000000175561351617527000231650ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file SchedEvents.cpp * @brief Defines a callback function for Sched events used to plot in green * the wake up latency of the task and in red the time the task was * preempted by another task. */ // C++ #include // C++ 11 #include #include // KernelShark #include "libkshark.h" #include "plugins/sched_events.h" #include "KsPlotTools.hpp" #include "KsPlugins.hpp" //! @cond Doxygen_Suppress #define PLUGIN_MIN_BOX_SIZE 4 #define KS_TASK_COLLECTION_MARGIN 25 //! @endcond extern struct plugin_sched_context *plugin_sched_context_handler; /** Sched Event identifier. */ enum class SchedEvent { /** Sched Switch Event. */ Switch, /** Sched Wakeup Event. */ Wakeup, }; static void pluginDraw(plugin_sched_context *plugin_ctx, kshark_context *kshark_ctx, kshark_trace_histo *histo, kshark_entry_collection *col, SchedEvent e, int pid, KsPlot::Graph *graph, KsPlot::PlotObjList *shapes) { const kshark_entry *entryClose, *entryOpen, *entryME; ssize_t indexClose(0), indexOpen(0), indexME(0); std::function ifSchedBack; KsPlot::Rectangle *rec = nullptr; int height = graph->getHeight() * .3; auto openBox = [&] (const KsPlot::Point &p) { /* * First check if we already have an open box. If we don't * have, open a new one. */ if (!rec) rec = new KsPlot::Rectangle; if (e == SchedEvent::Switch) { /* Red box. */ rec->_color = KsPlot::Color(255, 0, 0); } else { /* Green box. */ rec->_color = KsPlot::Color(0, 255, 0); } rec->setFill(false); rec->setPoint(0, p.x() - 1, p.y() - height); rec->setPoint(1, p.x() - 1, p.y() - 1); }; auto closeBox = [&] (const KsPlot::Point &p) { if (rec == nullptr) return; int boxSize = p.x() - rec->getPoint(0)->x; if (boxSize < PLUGIN_MIN_BOX_SIZE) { /* This box is too small. Don't try to plot it. */ delete rec; rec = nullptr; return; } rec->setPoint(3, p.x() - 1, p.y() - height); rec->setPoint(2, p.x() - 1, p.y() - 1); shapes->push_front(rec); rec = nullptr; }; for (int bin = 0; bin < graph->size(); ++bin) { /* * Starting from the first element in this bin, go forward * in time until you find a trace entry that satisfies the * condition defined by kshark_match_pid. */ entryClose = ksmodel_get_entry_back(histo, bin, false, plugin_switch_match_entry_pid, pid, col, &indexClose); entryME = ksmodel_get_task_missed_events(histo, bin, pid, col, &indexME); if (e == SchedEvent::Switch) { /* * Starting from the last element in this bin, go backward * in time until you find a trace entry that satisfies the * condition defined by plugin_switch_match_rec_pid. */ entryOpen = ksmodel_get_entry_back(histo, bin, false, plugin_switch_match_rec_pid, pid, col, &indexOpen); } else { /* * Starting from the last element in this bin, go backward * in time until you find a trace entry that satisfies the * condition defined by plugin_wakeup_match_rec_pid. */ entryOpen = ksmodel_get_entry_back(histo, bin, false, plugin_wakeup_match_rec_pid, pid, col, &indexOpen); if (entryOpen) { int cpu = ksmodel_get_cpu_back(histo, bin, pid, false, col, nullptr); if (cpu >= 0) { /* * The task is already running. Ignore * this wakeup event. */ entryOpen = nullptr; } } } if (rec) { if (entryME || entryClose) { /* Close the box in this bin. */ closeBox(graph->getBin(bin)._base); if (entryOpen && indexME < indexOpen && indexClose < indexOpen) { /* * We have a Sched switch entry that * comes after (in time) the closure of * the previous box. We have to open a * new box in this bin. */ openBox(graph->getBin(bin)._base); } } } else { if (entryOpen && (!entryClose || indexClose < indexOpen)) { /* Open a new box in this bin. */ openBox(graph->getBin(bin)._base); } } } if (rec) delete rec; return; } /* * Ideally, the sched_switch has to be the last trace event recorded before the * task is preempted. Because of this, when the data is loaded (the first pass), * the "pid" field of the sched_switch entries gets edited by this plugin to be * equal to the "next pid" of the sched_switch event. However, in reality the * sched_switch event may be followed by some trailing events from the same task * (printk events for example). This has the effect of extending the graph of * the task outside of the actual duration of the task. The "second pass" over * the data is used to fix this problem. It takes advantage of the "next" field * of the entry (this field is set during the first pass) to search for trailing * events after the "sched_switch". */ static void secondPass(kshark_entry **data, kshark_entry_collection *col, int pid) { if (!col) return; const kshark_entry *e; kshark_entry *last; int first, n; ssize_t index; /* Loop over the intervals of the data collection. */ for (size_t i = 0; i < col->size; ++i) { first = col->break_points[i]; n = first - col->resume_points[i]; kshark_entry_request *req = kshark_entry_request_alloc(first, n, plugin_switch_match_rec_pid, pid, false, KS_GRAPH_VIEW_FILTER_MASK); e = kshark_get_entry_back(req, data, &index); free(req); if (!e || index < 0) { /* No sched_switch event in this interval. */ continue; } /* Find the very last trailing event. */ for (last = data[index]; last->next; last = last->next) { if (last->next->pid != pid) { /* * This is the last trailing event. Change the * "pid" to be equal to the "next pid" of the * sched_switch event and leave a sign that you * edited this entry. */ last->pid = data[index]->pid; last->visible &= ~KS_PLUGIN_UNTOUCHED_MASK; break; } } } } /** * @brief Plugin's draw function. * * @param argv_c: A C pointer to be converted to KsCppArgV (C++ struct). * @param pid: Process Id. * @param draw_action: Draw action identifier. */ void plugin_draw(kshark_cpp_argv *argv_c, int pid, int draw_action) { plugin_sched_context *plugin_ctx; kshark_context *kshark_ctx(NULL); kshark_entry_collection *col; if (draw_action != KSHARK_PLUGIN_TASK_DRAW || pid == 0) return; plugin_ctx = plugin_sched_context_handler; if (!plugin_ctx || !kshark_instance(&kshark_ctx)) return; KsCppArgV *argvCpp = KS_ARGV_TO_CPP(argv_c); /* * Try to find a collections for this task. It is OK if * coll = NULL. */ col = kshark_find_data_collection(plugin_ctx->collections, plugin_match_pid, pid); if (!col) { /* * If a data collection for this task does not exist, * register a new one. */ kshark_entry **data = argvCpp->_histo->data; int size = argvCpp->_histo->data_size; col = kshark_add_collection_to_list(kshark_ctx, &plugin_ctx->collections, data, size, plugin_match_pid, pid, KS_TASK_COLLECTION_MARGIN); } if (!tracecmd_filter_id_find(plugin_ctx->second_pass_hash, pid)) { /* The second pass for this task is not done yet. */ secondPass(argvCpp->_histo->data, col, pid); tracecmd_filter_id_add(plugin_ctx->second_pass_hash, pid); } try { pluginDraw(plugin_ctx, kshark_ctx, argvCpp->_histo, col, SchedEvent::Wakeup, pid, argvCpp->_graph, argvCpp->_shapes); pluginDraw(plugin_ctx, kshark_ctx, argvCpp->_histo, col, SchedEvent::Switch, pid, argvCpp->_graph, argvCpp->_shapes); } catch (const std::exception &exc) { std::cerr << "Exception in SchedEvents\n" << exc.what(); } } trace-cmd-2.8.3/kernel-shark/src/plugins/missed_events.c000066400000000000000000000016321351617527000232460ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file missed_events.c * @brief Plugin for visualization of missed events due to overflow of the * ring buffer. */ // KernelShark #include "plugins/missed_events.h" static void nop_action(struct kshark_context *kshark_ctx, struct tep_record *record, struct kshark_entry *entry) {} /** Load this plugin. */ int KSHARK_PLUGIN_INITIALIZER(struct kshark_context *kshark_ctx) { kshark_register_event_handler(&kshark_ctx->event_handlers, KS_EVENT_OVERFLOW, nop_action, draw_missed_events); return 1; } /** Unload this plugin. */ int KSHARK_PLUGIN_DEINITIALIZER(struct kshark_context *kshark_ctx) { kshark_unregister_event_handler(&kshark_ctx->event_handlers, KS_EVENT_OVERFLOW, nop_action, draw_missed_events); return 1; } trace-cmd-2.8.3/kernel-shark/src/plugins/missed_events.h000066400000000000000000000010051351617527000232450ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file missed_events.h * @brief Plugin for visualization of missed events due to overflow of the * ring buffer. */ #ifndef _KS_PLUGIN_M_EVTS_H #define _KS_PLUGIN_M_EVTS_H // KernelShark #include "libkshark.h" #ifdef __cplusplus extern "C" { #endif void draw_missed_events(struct kshark_cpp_argv *argv, int pid, int draw_action); #ifdef __cplusplus } #endif #endif trace-cmd-2.8.3/kernel-shark/src/plugins/sched_events.c000066400000000000000000000226751351617527000230620ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2018 VMware Inc, Yordan Karadzhov */ /** * @file sched_events.c * @brief Defines a callback function for Sched events used to registers the * "next" task (if not registered already) and to changes the value * of the "pid" field of the "sched_switch" entries such that, it * will be ploted as part of the "next" task. */ // C #include #include #include // KernelShark #include "plugins/sched_events.h" /** Plugin context instance. */ struct plugin_sched_context *plugin_sched_context_handler = NULL; static bool define_wakeup_event(struct tep_handle *tep, const char *wakeup_name, struct tep_event **wakeup_event, struct tep_format_field **pid_field) { struct tep_event *event; event = tep_find_event_by_name(tep, "sched", wakeup_name); if (!event) return false; *wakeup_event = event; *pid_field = tep_find_any_field(event, "pid"); return true; } static void plugin_free_context(struct plugin_sched_context *plugin_ctx) { if (!plugin_ctx) return; tracecmd_filter_id_hash_free(plugin_ctx->second_pass_hash); kshark_free_collection_list(plugin_ctx->collections); free(plugin_ctx); } static bool plugin_sched_init_context(struct kshark_context *kshark_ctx) { struct plugin_sched_context *plugin_ctx; struct tep_event *event; bool wakeup_found; /* No context should exist when we initialize the plugin. */ assert(plugin_sched_context_handler == NULL); plugin_sched_context_handler = calloc(1, sizeof(*plugin_sched_context_handler)); if (!plugin_sched_context_handler) { fprintf(stderr, "Failed to allocate memory for plugin_sched_context.\n"); return false; } plugin_ctx = plugin_sched_context_handler; plugin_ctx->handle = kshark_ctx->handle; plugin_ctx->pevent = kshark_ctx->pevent; plugin_ctx->collections = NULL; event = tep_find_event_by_name(plugin_ctx->pevent, "sched", "sched_switch"); if (!event) { plugin_free_context(plugin_ctx); plugin_sched_context_handler = NULL; return false; } plugin_ctx->sched_switch_event = event; plugin_ctx->sched_switch_next_field = tep_find_any_field(event, "next_pid"); plugin_ctx->sched_switch_comm_field = tep_find_field(event, "next_comm"); plugin_ctx->sched_switch_prev_state_field = tep_find_field(event, "prev_state"); wakeup_found = define_wakeup_event(kshark_ctx->pevent, "sched_wakeup", &plugin_ctx->sched_wakeup_event, &plugin_ctx->sched_wakeup_pid_field); wakeup_found |= define_wakeup_event(kshark_ctx->pevent, "sched_wakeup_new", &plugin_ctx->sched_wakeup_new_event, &plugin_ctx->sched_wakeup_new_pid_field); wakeup_found |= define_wakeup_event(kshark_ctx->pevent, "sched_waking", &plugin_ctx->sched_waking_event, &plugin_ctx->sched_waking_pid_field); plugin_ctx->second_pass_hash = tracecmd_filter_id_hash_alloc(); return true; } /** * @brief Get the Process Id of the next scheduled task. * * @param record: Input location for a sched_switch record. */ int plugin_get_next_pid(struct tep_record *record) { struct plugin_sched_context *plugin_ctx = plugin_sched_context_handler; unsigned long long val; int ret; ret = tep_read_number_field(plugin_ctx->sched_switch_next_field, record->data, &val); return ret ? : val; } static void plugin_register_command(struct kshark_context *kshark_ctx, struct tep_record *record, int pid) { struct plugin_sched_context *plugin_ctx = plugin_sched_context_handler; const char *comm; if (!plugin_ctx->sched_switch_comm_field) return; comm = record->data + plugin_ctx->sched_switch_comm_field->offset; /* * TODO: The retrieve of the name of the command above needs to be * implemented as a wrapper function in libtracevent. */ if (!tep_is_pid_registered(kshark_ctx->pevent, pid)) tep_register_comm(kshark_ctx->pevent, comm, pid); } static int find_wakeup_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, struct tep_event *wakeup_event, struct tep_format_field *pid_field) { struct tep_record *record; unsigned long long val; int ret; if (!wakeup_event || e->event_id != wakeup_event->id) return -1; record = tracecmd_read_at(kshark_ctx->handle, e->offset, NULL); ret = tep_read_number_field(pid_field, record->data, &val); free_record(record); if (ret) return -1; return val; } static bool wakeup_match_rec_pid(struct plugin_sched_context *plugin_ctx, struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid) { struct tep_event *wakeup_events[] = { plugin_ctx->sched_waking_event, plugin_ctx->sched_wakeup_event, plugin_ctx->sched_wakeup_new_event, }; struct tep_format_field *wakeup_fields[] = { plugin_ctx->sched_waking_pid_field, plugin_ctx->sched_wakeup_pid_field, plugin_ctx->sched_wakeup_new_pid_field, }; int i, wakeup_pid = -1; for (i = 0; i < sizeof(wakeup_events) / sizeof(wakeup_events[0]); i++) { wakeup_pid = find_wakeup_pid(kshark_ctx, e, wakeup_events[i], wakeup_fields[i]); if (wakeup_pid >= 0) break; } if (wakeup_pid >= 0 && wakeup_pid == pid) return true; return false; } /** * @brief Process Id matching function adapted for sched_wakeup and * sched_wakeup_new events. * * @param kshark_ctx: Input location for the session context pointer. * @param e: kshark_entry to be checked. * @param pid: Matching condition value. * * @returns True if the Pid of the record matches the value of "pid". * Otherwise false. */ bool plugin_wakeup_match_rec_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid) { struct plugin_sched_context *plugin_ctx; plugin_ctx = plugin_sched_context_handler; if (!plugin_ctx) return false; return wakeup_match_rec_pid(plugin_ctx, kshark_ctx, e, pid); } /** * @brief Process Id matching function adapted for sched_switch events. * * @param kshark_ctx: Input location for the session context pointer. * @param e: kshark_entry to be checked. * @param pid: Matching condition value. * * @returns True if the Pid of the record matches the value of "pid". * Otherwise false. */ bool plugin_switch_match_rec_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid) { struct plugin_sched_context *plugin_ctx; unsigned long long val; int ret, switch_pid = -1; plugin_ctx = plugin_sched_context_handler; if (plugin_ctx->sched_switch_event && e->event_id == plugin_ctx->sched_switch_event->id) { struct tep_record *record; record = tracecmd_read_at(kshark_ctx->handle, e->offset, NULL); ret = tep_read_number_field(plugin_ctx->sched_switch_prev_state_field, record->data, &val); if (ret == 0 && !(val & 0x7f)) switch_pid = tep_data_pid(plugin_ctx->pevent, record); free_record(record); } if (switch_pid >= 0 && switch_pid == pid) return true; return false; } /** * @brief Process Id matching function adapted for sched_switch events. * * @param kshark_ctx: Input location for the session context pointer. * @param e: kshark_entry to be checked. * @param pid: Matching condition value. * * @returns True if the Pid of the entry matches the value of "pid". * Otherwise false. */ bool plugin_switch_match_entry_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid) { struct plugin_sched_context *plugin_ctx; plugin_ctx = plugin_sched_context_handler; if (plugin_ctx->sched_switch_event && e->event_id == plugin_ctx->sched_switch_event->id && e->pid == pid) return true; return false; } /** * @brief A match function to be used to process a data collections for * the Sched events plugin. * * @param kshark_ctx: Input location for the session context pointer. * @param e: kshark_entry to be checked. * @param pid: Matching condition value. * * @returns True if the entry is relevant for the Sched events plugin. * Otherwise false. */ bool plugin_match_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid) { return plugin_switch_match_entry_pid(kshark_ctx, e, pid) || plugin_switch_match_rec_pid(kshark_ctx, e, pid) || plugin_wakeup_match_rec_pid(kshark_ctx, e, pid); } static void plugin_sched_action(struct kshark_context *kshark_ctx, struct tep_record *rec, struct kshark_entry *entry) { int pid = plugin_get_next_pid(rec); if (pid >= 0) { entry->pid = pid; plugin_register_command(kshark_ctx, rec, entry->pid); } } static int plugin_sched_init(struct kshark_context *kshark_ctx) { struct plugin_sched_context *plugin_ctx; if (!plugin_sched_init_context(kshark_ctx)) return 0; plugin_ctx = plugin_sched_context_handler; kshark_register_event_handler(&kshark_ctx->event_handlers, plugin_ctx->sched_switch_event->id, plugin_sched_action, plugin_draw); return 1; } static int plugin_sched_close(struct kshark_context *kshark_ctx) { struct plugin_sched_context *plugin_ctx; if (!plugin_sched_context_handler) return 0; plugin_ctx = plugin_sched_context_handler; kshark_unregister_event_handler(&kshark_ctx->event_handlers, plugin_ctx->sched_switch_event->id, plugin_sched_action, plugin_draw); plugin_free_context(plugin_ctx); plugin_sched_context_handler = NULL; return 1; } /** Load this plugin. */ int KSHARK_PLUGIN_INITIALIZER(struct kshark_context *kshark_ctx) { return plugin_sched_init(kshark_ctx); } /** Unload this plugin. */ int KSHARK_PLUGIN_DEINITIALIZER(struct kshark_context *kshark_ctx) { return plugin_sched_close(kshark_ctx); } trace-cmd-2.8.3/kernel-shark/src/plugins/sched_events.h000066400000000000000000000046621351617527000230630ustar00rootroot00000000000000/* SPDX-License-Identifier: LGPL-2.1 */ /* * Copyright (C) 2017 VMware Inc, Yordan Karadzhov */ /** * @file sched_events.h * @brief Plugin for Sched events. */ #ifndef _KS_PLUGIN_SHED_H #define _KS_PLUGIN_SHED_H // KernelShark #include "libkshark.h" #ifdef __cplusplus extern "C" { #endif /** Structure representing a plugin-specific context. */ struct plugin_sched_context { /** Input handle for the trace data file. */ struct tracecmd_input *handle; /** Page event used to parse the page. */ struct tep_handle *pevent; /** Pointer to the sched_switch_event object. */ struct tep_event *sched_switch_event; /** Pointer to the sched_switch_next_field format descriptor. */ struct tep_format_field *sched_switch_next_field; /** Pointer to the sched_switch_comm_field format descriptor. */ struct tep_format_field *sched_switch_comm_field; /** Pointer to the sched_switch_prev_state_field format descriptor. */ struct tep_format_field *sched_switch_prev_state_field; /** Pointer to the sched_wakeup_event object. */ struct tep_event *sched_wakeup_event; /** Pointer to the sched_wakeup_pid_field format descriptor. */ struct tep_format_field *sched_wakeup_pid_field; /** Pointer to the sched_wakeup_new_event object. */ struct tep_event *sched_wakeup_new_event; /** Pointer to the sched_wakeup_new_pid_field format descriptor. */ struct tep_format_field *sched_wakeup_new_pid_field; /** Pointer to the sched_waking_event object. */ struct tep_event *sched_waking_event; /** Pointer to the sched_waking_pid_field format descriptor. */ struct tep_format_field *sched_waking_pid_field; /** List of Data collections used by this plugin. */ struct kshark_entry_collection *collections; /** Hash of the tasks for which the second pass is already done. */ struct tracecmd_filter_id *second_pass_hash; }; int plugin_get_next_pid(struct tep_record *record); bool plugin_wakeup_match_rec_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid); bool plugin_switch_match_rec_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid); bool plugin_switch_match_entry_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid); bool plugin_match_pid(struct kshark_context *kshark_ctx, struct kshark_entry *e, int pid); void plugin_draw(struct kshark_cpp_argv *argv, int pid, int draw_action); #ifdef __cplusplus } #endif #endif trace-cmd-2.8.3/lib/000077500000000000000000000000001351617527000141405ustar00rootroot00000000000000trace-cmd-2.8.3/lib/trace-cmd/000077500000000000000000000000001351617527000157775ustar00rootroot00000000000000trace-cmd-2.8.3/lib/trace-cmd/Makefile000066400000000000000000000017651351617527000174500ustar00rootroot00000000000000 include $(src)/scripts/utils.mk bdir:=$(obj)/lib/trace-cmd DEFAULT_TARGET = $(bdir)/libtracecmd.a OBJS = OBJS += trace-hash.o OBJS += trace-hooks.o OBJS += trace-input.o OBJS += trace-recorder.o OBJS += trace-util.o OBJS += trace-filter-hash.o # Additional util objects OBJS += trace-blk-hack.o OBJS += trace-ftrace.o OBJS := $(OBJS:%.o=$(bdir)/%.o) DEPS := $(OBJS:$(bdir)/%.o=$(bdir)/.%.d) all: $(DEFAULT_TARGET) $(bdir): @mkdir -p $(bdir) $(OBJS): | $(bdir) $(DEPS): | $(bdir) $(bdir)/libtracecmd.a: $(OBJS) $(Q)$(call do_build_static_lib) $(bdir)/libtracecmd.so: $(OBJS) $(Q)$(call do_compile_shared_library) $(bdir)/%.o: %.c $(Q)$(call do_fpic_compile) $(bdir)/trace-util.o: $(obj)/plugins/trace_plugin_dir $(DEPS): $(bdir)/.%.d: %.c $(Q)$(CC) -M $(CPPFLAGS) $(CFLAGS) $< > $@ $(OBJS): $(bdir)/%.o : $(bdir)/.%.d dep_includes := $(wildcard $(DEPS)) ifneq ($(dep_includes),) include $(dep_includes) endif clean: $(RM) $(bdir)/*.a $(bdir)/*.so $(bdir)/*.o $(bdir)/.*.d .PHONY: clean trace-cmd-2.8.3/lib/trace-cmd/include/000077500000000000000000000000001351617527000174225ustar00rootroot00000000000000trace-cmd-2.8.3/lib/trace-cmd/include/trace-hash-local.h000066400000000000000000000017371351617527000227120ustar00rootroot00000000000000/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2009, Steven Rostedt * */ #ifndef _TRACE_HASH_LOCAL_H #define _TRACE_HASH_LOCAL_H static inline unsigned int trace_hash(unsigned int val) { unsigned int hash, tmp; hash = 12546869; /* random prime */ /* * The following hash is based off of Paul Hsieh's super fast hash: * http://www.azillionmonkeys.com/qed/hash.html * Note, he released this code unde the GPL 2.0 license, which * is the same as the license for the programs that use it here. */ hash += (val & 0xffff); tmp = (val >> 16) ^ hash; hash = (hash << 16) ^ tmp; hash += hash >> 11; hash ^= hash << 3; hash += hash >> 5; hash ^= hash << 4; hash += hash >> 17; hash ^= hash << 25; hash += hash >> 6; return hash; } static inline unsigned int trace_hash_str(char *str) { int val = 0; int i; for (i = 0; str[i]; i++) val += ((int)str[i]) << (i & 0xf); return trace_hash(val); } #endif /* _TRACE_HASH_LOCAL_H */ trace-cmd-2.8.3/lib/trace-cmd/trace-blk-hack.c000066400000000000000000000077621351617527000207270ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2009 Red Hat Inc, Steven Rostedt * */ #include #include "trace-cmd.h" #include "trace-local.h" static const char blk_event_start[] = "name: blktrace\n" "ID: %d\n" "format:\n" "\tfield:unsigned short common_type;\toffset:0;\tsize:2;\n" "\tfield:unsigned char common_flags;\toffset:2;\tsize:1;\n" "\tfield:unsigned char common_preempt_count;\toffset:3;\tsize:1;\n" "\tfield:int common_pid;\toffset:4;\tsize:4;\n"; static const char blk_body[] = "\n" "\tfield:u64 sector;\toffset:16;\tsize:8;\n" "\tfield:int bytes;\toffset:24;\tsize:4;\n" "\tfield:int action;\toffset:28;\tsize:4;\n" "\tfield:int pid;\toffset:32;\tsize:4;\n" "\tfield:int device;\toffset:36;\tsize:4;\n" "\tfield:int cpu;\toffset:40;\tsize:4;\n" "\tfield:short error;\toffset:44;\tsize:2;\n" "\tfield:short pdu_len;\toffset:46;\tsize:2;\n" "\tfield:void data;\toffset:48;\tsize:0;\n" "\n" "print fmt: \"%%d\", REC->pid\n"; int tracecmd_blk_hack(struct tracecmd_input *handle) { struct tep_handle *pevent; struct tep_event *event; struct tep_format_field *field; char buf[4096]; /* way more than enough! */ int id; int l; int r; pevent = tracecmd_get_pevent(handle); /* * Unfortunately, the TRACE_BLK has changed a bit. * We need to test if various events exist to try * to guess what event id TRACE_BLK would be. */ /* It was originally behind the "power" event */ event = tep_find_event_by_name(pevent, "ftrace", "power"); if (event) { id = event->id + 1; goto found; } /* * But the power tracer is now in perf. * Then it was after kmem_free */ event = tep_find_event_by_name(pevent, "ftrace", "kmem_free"); if (event) { id = event->id + 1; goto found; } /* * But that then went away. * Currently it should be behind the user stack. */ event = tep_find_event_by_name(pevent, "ftrace", "user_stack"); if (event) { id = event->id + 1; goto found; } /* Give up :( */ return -1; found: /* * Blk events are not exported in the events directory. * This is a hack to attempt to create a block event * that we can read. * * We'll make a format file to look like this: * * name: blktrace * ID: 13 * format: * field:unsigned short common_type; offset:0; size:2; * field:unsigned char common_flags; offset:2; size:1; * field:unsigned char common_preempt_count; offset:3; size:1; * field:int common_pid; offset:4; size:4; * field:int common_lock_depth; offset:8; size:4; * * field:u64 sector; offset:16; size:8; * field:int bytes; offset:32; size:4; * field:int action; offset:36; size:4; * field:int pid; offset:40; size:4; * field:int device; offset:44; size:4; * field:int cpu; offset:48; size:4; * field:short error; offset:52; size:2; * field:short pdu_len; offset:54; size:2; * field:void data; offset:60; size:0; * * print fmt: "%d", REC->pid * * Note: the struct blk_io_trace is used directly and * just the first parts of the struct are not used in order * to not write over the ftrace data. */ /* Make sure the common fields exist */ field = tep_find_common_field(event, "common_type"); if (!field || field->offset != 0 || field->size != 2) goto fail; field = tep_find_common_field(event, "common_flags"); if (!field || field->offset != 2 || field->size != 1) goto fail; field = tep_find_common_field(event, "common_preempt_count"); if (!field || field->offset != 3 || field->size != 1) goto fail; field = tep_find_common_field(event, "common_pid"); if (!field || field->offset != 4 || field->size != 4) goto fail; r = sprintf(buf, blk_event_start, id); l = r; /* lock depth is optional */ field = tep_find_common_field(event, "common_lock_depth"); if (field) { if (field->offset != 8 || field->size != 4) return -1; r = sprintf(buf+l, "\tfield:int common_lock_depth;\toffset:8;\tsize:4;\n"); l += r; } r = sprintf(buf+l, blk_body); /* Parse this event */ l += r; tep_parse_event(pevent, buf, l, "ftrace"); return 0; fail: return -1; } trace-cmd-2.8.3/lib/trace-cmd/trace-filter-hash.c000066400000000000000000000111001351617527000214360ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2009, Steven Rostedt * Copyright (C) 2018 VMware Inc, Steven Rostedt * */ #include #include #include #include #include #include "trace-filter-hash.h" #define FILTER_HASH_SIZE 256 /* * Hashing functions, based on Donald E. Knuth's Multiplicative hashing. * See The Art of Computer Programming (TAOCP). */ static inline uint8_t knuth_hash8(uint32_t val) { /* * Multiplicative hashing function. * Multiplication by the Prime number, closest to the golden * ratio of 2^8. */ return UINT8_C(val) * UINT8_C(157); } static inline uint16_t knuth_hash16(uint32_t val) { /* * Multiplicative hashing function. * Multiplication by the Prime number, closest to the golden * ratio of 2^16. */ return UINT16_C(val) * UINT16_C(40507); } static inline uint32_t knuth_hash(uint32_t val) { /* * Multiplicative hashing function. * Multiplication by the Prime number, closest to the golden * ratio of 2^32. */ return val * UINT32_C(2654435761); } struct tracecmd_filter_id_item * tracecmd_filter_id_find(struct tracecmd_filter_id *hash, int id) { int key = knuth_hash8(id); struct tracecmd_filter_id_item *item = hash->hash[key]; while (item) { if (item->id == id) break; item = item->next; } return item; } void tracecmd_filter_id_add(struct tracecmd_filter_id *hash, int id) { int key = knuth_hash8(id); struct tracecmd_filter_id_item *item; item = calloc(1, sizeof(*item)); assert(item); item->id = id; item->next = hash->hash[key]; hash->hash[key] = item; hash->count++; } void tracecmd_filter_id_remove(struct tracecmd_filter_id *hash, int id) { int key = knuth_hash8(id); struct tracecmd_filter_id_item **next = &hash->hash[key]; struct tracecmd_filter_id_item *item; while (*next) { if ((*next)->id == id) break; next = &(*next)->next; } if (!*next) return; assert(hash->count); hash->count--; item = *next; *next = item->next; free(item); } void tracecmd_filter_id_clear(struct tracecmd_filter_id *hash) { struct tracecmd_filter_id_item *item, *next; int i; for (i = 0; i < FILTER_HASH_SIZE; i++) { next = hash->hash[i]; if (!next) continue; hash->hash[i] = NULL; while (next) { item = next; next = item->next; free(item); } } hash->count = 0; } struct tracecmd_filter_id *tracecmd_filter_id_hash_alloc(void) { struct tracecmd_filter_id *hash; hash = calloc(1, sizeof(*hash)); assert(hash); hash->hash = calloc(FILTER_HASH_SIZE, sizeof(*hash->hash)); hash->count = 0; return hash; } void tracecmd_filter_id_hash_free(struct tracecmd_filter_id *hash) { if (!hash) return; tracecmd_filter_id_clear(hash); free(hash->hash); free(hash); } struct tracecmd_filter_id * tracecmd_filter_id_hash_copy(struct tracecmd_filter_id *hash) { struct tracecmd_filter_id *new_hash; struct tracecmd_filter_id_item *item, **pitem; int i; if (!hash) return NULL; new_hash = tracecmd_filter_id_hash_alloc(); assert(new_hash); for (i = 0; i < FILTER_HASH_SIZE; i++) { item = hash->hash[i]; if (!item) continue; pitem = &new_hash->hash[i]; while (item) { *pitem = calloc(1, sizeof(*item)); assert(*pitem); **pitem = *item; pitem = &(*pitem)->next; item = item->next; } } new_hash->count = hash->count; return new_hash; } int *tracecmd_filter_ids(struct tracecmd_filter_id *hash) { struct tracecmd_filter_id_item *item; int *ids; int count = 0; int i; if (!hash->count) return NULL; ids = malloc(sizeof(*ids) * (hash->count + 1)); if (!ids) return NULL; for (i = 0; i < FILTER_HASH_SIZE; i++) { item = hash->hash[i]; while (item) { ids[count++] = item->id; item = item->next; } } ids[count] = -1; return ids; } /** * filter_id_compare - compare two id hashes to see if they are equal * @hash1: one hash to compare * @hash2: another hash to compare to @hash1 * * Returns 1 if the two hashes are the same, 0 otherwise. */ int tracecmd_filter_id_compare(struct tracecmd_filter_id *hash1, struct tracecmd_filter_id *hash2) { int *ids; int ret = 0; int i; /* If counts don't match, then they obviously are not the same */ if (hash1->count != hash2->count) return 0; /* If both hashes are empty, they are the same */ if (!hash1->count && !hash2->count) return 1; /* Now compare the pids of one hash with the other */ ids = tracecmd_filter_ids(hash1); for (i = 0; ids[i] >= 0; i++) { if (!tracecmd_filter_id_find(hash2, ids[i])) break; } if (ids[i] == -1) ret = 1; free(ids); return ret; } trace-cmd-2.8.3/lib/trace-cmd/trace-ftrace.c000066400000000000000000000254731351617527000205160ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt * */ #include #include #include #include #include "trace-cmd.h" struct tep_plugin_option trace_ftrace_options[] = { { .name = "tailprint", .plugin_alias = "fgraph", .description = "Print function name at function exit in function graph", }, { .name = "depth", .plugin_alias = "fgraph", .description = "Show the depth of each entry", }, { .name = NULL, } }; static struct tep_plugin_option *fgraph_tail = &trace_ftrace_options[0]; static struct tep_plugin_option *fgraph_depth = &trace_ftrace_options[1]; static void find_long_size(struct tracecmd_ftrace *finfo) { finfo->long_size = tracecmd_long_size(finfo->handle); } #define long_size_check(handle) \ do { \ if (!finfo->long_size) \ find_long_size(finfo); \ } while (0) static int find_ret_event(struct tracecmd_ftrace *finfo, struct tep_handle *pevent) { struct tep_event *event; /* Store the func ret id and event for later use */ event = tep_find_event_by_name(pevent, "ftrace", "funcgraph_exit"); if (!event) return -1; finfo->fgraph_ret_id = event->id; finfo->fgraph_ret_event = event; return 0; } #define ret_event_check(finfo, pevent) \ do { \ if (!finfo->fgraph_ret_event && find_ret_event(finfo, pevent) < 0) \ return -1; \ } while (0) static int function_handler(struct trace_seq *s, struct tep_record *record, struct tep_event *event, void *context) { struct tep_handle *pevent = event->tep; unsigned long long function; const char *func; if (tep_get_field_val(s, event, "ip", record, &function, 1)) return trace_seq_putc(s, '!'); func = tep_find_function(pevent, function); if (func) trace_seq_printf(s, "%s <-- ", func); else trace_seq_printf(s, "0x%llx", function); if (tep_get_field_val(s, event, "parent_ip", record, &function, 1)) return trace_seq_putc(s, '!'); func = tep_find_function(pevent, function); if (func) trace_seq_printf(s, "%s", func); else trace_seq_printf(s, "0x%llx", function); return 0; } #define TRACE_GRAPH_INDENT 2 static struct tep_record * get_return_for_leaf(struct trace_seq *s, int cpu, int cur_pid, unsigned long long cur_func, struct tep_record *next, struct tracecmd_ftrace *finfo) { unsigned long long val; unsigned long long type; unsigned long long pid; /* Searching a common field, can use any event */ if (tep_get_common_field_val(s, finfo->fgraph_ret_event, "common_type", next, &type, 1)) return NULL; if (type != finfo->fgraph_ret_id) return NULL; if (tep_get_common_field_val(s, finfo->fgraph_ret_event, "common_pid", next, &pid, 1)) return NULL; if (cur_pid != pid) return NULL; /* We aleady know this is a funcgraph_ret_event */ if (tep_get_field_val(s, finfo->fgraph_ret_event, "func", next, &val, 1)) return NULL; if (cur_func != val) return NULL; /* this is a leaf, now advance the iterator */ return tracecmd_read_data(tracecmd_curr_thread_handle, cpu); } /* Signal a overhead of time execution to the output */ static void print_graph_overhead(struct trace_seq *s, unsigned long long duration) { /* Non nested entry or return */ if (duration == ~0ULL) return (void)trace_seq_printf(s, " "); /* Duration exceeded 1 sec */ if (duration > 1000000000ULL) return (void)trace_seq_printf(s, "$ "); /* Duration exceeded 1000 usecs */ if (duration > 1000000ULL) return (void)trace_seq_printf(s, "# "); /* Duration exceeded 100 usecs */ if (duration > 100000ULL) return (void)trace_seq_printf(s, "! "); /* Duration exceeded 10 usecs */ if (duration > 10000ULL) return (void)trace_seq_printf(s, "+ "); trace_seq_printf(s, " "); } static void print_graph_duration(struct trace_seq *s, unsigned long long duration) { unsigned long usecs = duration / 1000; unsigned long nsecs_rem = duration % 1000; /* log10(ULONG_MAX) + '\0' */ char msecs_str[21]; char nsecs_str[5]; int len; int i; sprintf(msecs_str, "%lu", usecs); /* Print msecs */ len = s->len; trace_seq_printf(s, "%lu", usecs); /* Print nsecs (we don't want to exceed 7 numbers) */ if ((s->len - len) < 7) { snprintf(nsecs_str, MIN(sizeof(nsecs_str), 8 - len), "%03lu", nsecs_rem); trace_seq_printf(s, ".%s", nsecs_str); } len = s->len - len; trace_seq_puts(s, " us "); /* Print remaining spaces to fit the row's width */ for (i = len; i < 7; i++) trace_seq_putc(s, ' '); trace_seq_puts(s, "| "); } static int print_graph_entry_leaf(struct trace_seq *s, struct tep_event *event, struct tep_record *record, struct tep_record *ret_rec, struct tracecmd_ftrace *finfo) { struct tep_handle *pevent = event->tep; unsigned long long rettime, calltime; unsigned long long duration, depth; unsigned long long val; const char *func; int ret; int i; if (tep_get_field_val(s, finfo->fgraph_ret_event, "rettime", ret_rec, &rettime, 1)) return trace_seq_putc(s, '!'); if (tep_get_field_val(s, finfo->fgraph_ret_event, "calltime", ret_rec, &calltime, 1)) return trace_seq_putc(s, '!'); duration = rettime - calltime; /* Overhead */ print_graph_overhead(s, duration); /* Duration */ print_graph_duration(s, duration); if (tep_get_field_val(s, event, "depth", record, &depth, 1)) return trace_seq_putc(s, '!'); /* Function */ for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) trace_seq_putc(s, ' '); if (tep_get_field_val(s, event, "func", record, &val, 1)) return trace_seq_putc(s, '!'); func = tep_find_function(pevent, val); if (func) ret = trace_seq_printf(s, "%s();", func); else ret = trace_seq_printf(s, "%llx();", val); if (ret && fgraph_depth->set) ret = trace_seq_printf(s, " (%lld)", depth); return ret; } static int print_graph_nested(struct trace_seq *s, struct tep_event *event, struct tep_record *record) { struct tep_handle *pevent = event->tep; unsigned long long depth; unsigned long long val; const char *func; int ret; int i; /* No overhead */ print_graph_overhead(s, -1); /* No time */ trace_seq_puts(s, " | "); if (tep_get_field_val(s, event, "depth", record, &depth, 1)) return trace_seq_putc(s, '!'); /* Function */ for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) trace_seq_putc(s, ' '); if (tep_get_field_val(s, event, "func", record, &val, 1)) return trace_seq_putc(s, '!'); func = tep_find_function(pevent, val); if (func) ret = trace_seq_printf(s, "%s() {", func); else ret = trace_seq_printf(s, "%llx() {", val); if (ret && fgraph_depth->set) ret = trace_seq_printf(s, " (%lld)", depth); return ret; } static int fgraph_ent_handler(struct trace_seq *s, struct tep_record *record, struct tep_event *event, void *context) { struct tracecmd_ftrace *finfo = context; struct tep_record *rec; unsigned long long val, pid; int cpu; ret_event_check(finfo, event->tep); if (tep_get_common_field_val(s, event, "common_pid", record, &pid, 1)) return trace_seq_putc(s, '!'); if (tep_get_field_val(s, event, "func", record, &val, 1)) return trace_seq_putc(s, '!'); rec = tracecmd_peek_next_data(tracecmd_curr_thread_handle, &cpu); if (rec) rec = get_return_for_leaf(s, cpu, pid, val, rec, finfo); if (rec) { /* * If this is a leaf function, then get_return_for_leaf * returns the return of the function */ print_graph_entry_leaf(s, event, record, rec, finfo); free_record(rec); } else print_graph_nested(s, event, record); return 0; } static int fgraph_ret_handler(struct trace_seq *s, struct tep_record *record, struct tep_event *event, void *context) { struct tracecmd_ftrace *finfo = context; unsigned long long rettime, calltime; unsigned long long duration, depth; unsigned long long val; const char *func; int i; ret_event_check(finfo, event->tep); if (tep_get_field_val(s, event, "rettime", record, &rettime, 1)) return trace_seq_putc(s, '!'); if (tep_get_field_val(s, event, "calltime", record, &calltime, 1)) return trace_seq_putc(s, '!'); duration = rettime - calltime; /* Overhead */ print_graph_overhead(s, duration); /* Duration */ print_graph_duration(s, duration); if (tep_get_field_val(s, event, "depth", record, &depth, 1)) return trace_seq_putc(s, '!'); /* Function */ for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) trace_seq_putc(s, ' '); trace_seq_putc(s, '}'); if (fgraph_tail->set) { if (tep_get_field_val(s, event, "func", record, &val, 0)) return 0; func = tep_find_function(event->tep, val); if (!func) return 0; trace_seq_printf(s, " /* %s */", func); } if (fgraph_depth->set) trace_seq_printf(s, " (%lld)", depth); return 0; } static int trace_stack_handler(struct trace_seq *s, struct tep_record *record, struct tep_event *event, void *context) { struct tracecmd_ftrace *finfo = context; struct tep_format_field *field; unsigned long long addr; const char *func; void *data = record->data; field = tep_find_any_field(event, "caller"); if (!field) { trace_seq_printf(s, "", "caller"); return 0; } trace_seq_puts(s, "\n"); long_size_check(finfo); for (data += field->offset; data < record->data + record->size; data += finfo->long_size) { addr = tep_read_number(event->tep, data, finfo->long_size); if ((finfo->long_size == 8 && addr == (unsigned long long)-1) || ((int)addr == -1)) break; func = tep_find_function(event->tep, addr); if (func) trace_seq_printf(s, "=> %s (%llx)\n", func, addr); else trace_seq_printf(s, "=> %llx\n", addr); } return 0; } /** * tracecmd_ftrace_load_options - load the ftrace options * * This routine is used for trace-cmd list, to load the builtin * ftrace options in order to list them. As the list command does * not load a trace.dat file where this would normally be loaded. */ void tracecmd_ftrace_load_options(void) { trace_util_add_options("ftrace", trace_ftrace_options); } int tracecmd_ftrace_overrides(struct tracecmd_input *handle, struct tracecmd_ftrace *finfo) { struct tep_handle *pevent; struct tep_event *event; finfo->handle = handle; pevent = tracecmd_get_pevent(handle); tep_register_event_handler(pevent, -1, "ftrace", "function", function_handler, NULL); tep_register_event_handler(pevent, -1, "ftrace", "funcgraph_entry", fgraph_ent_handler, finfo); tep_register_event_handler(pevent, -1, "ftrace", "funcgraph_exit", fgraph_ret_handler, finfo); tep_register_event_handler(pevent, -1, "ftrace", "kernel_stack", trace_stack_handler, finfo); trace_util_add_options("ftrace", trace_ftrace_options); /* Store the func ret id and event for later use */ event = tep_find_event_by_name(pevent, "ftrace", "funcgraph_exit"); if (!event) return 0; finfo->long_size = tracecmd_long_size(handle); finfo->fgraph_ret_id = event->id; finfo->fgraph_ret_event = event; return 0; } trace-cmd-2.8.3/lib/trace-cmd/trace-hash.c000066400000000000000000000032051351617527000201620ustar00rootroot00000000000000// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2014, Steven Rostedt * */ #include #include #include #include #include #include "trace-hash.h" int trace_hash_init(struct trace_hash *hash, int buckets) { memset(hash, 0, sizeof(*hash)); hash->buckets = calloc(sizeof(*hash->buckets), buckets); if (!hash->buckets) return -ENOMEM; hash->nr_buckets = buckets; /* If a power of two then we can shortcut */ if (!(buckets & (buckets - 1))) hash->power = buckets - 1; return 0; } void trace_hash_free(struct trace_hash *hash) { free(hash->buckets); } int trace_hash_empty(struct trace_hash *hash) { struct trace_hash_item **bucket; trace_hash_for_each_bucket(bucket, hash) if (*bucket) return 0; return 1; } int trace_hash_add(struct trace_hash *hash, struct trace_hash_item *item) { struct trace_hash_item *next; int bucket = hash->power ? item->key & hash->power : item->key % hash->nr_buckets; if (hash->buckets[bucket]) { next = hash->buckets[bucket]; next->prev = item; } else next = NULL; item->next = next; item->prev = (struct trace_hash_item *)&hash->buckets[bucket]; hash->buckets[bucket] = item; return 1; } struct trace_hash_item * trace_hash_find(struct trace_hash *hash, unsigned long long key, trace_hash_func match, void *data) { struct trace_hash_item *item; int bucket = hash->power ? key & hash->power : key % hash->nr_buckets; for (item = hash->buckets[bucket]; item; item = item->next) { if (item->key == key) { if (!match) return item; if (match(item, data)) return item; } } return NULL; } trace-cmd-2.8.3/lib/trace-cmd/trace-hooks.c000066400000000000000000000061351351617527000203670ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2015 Red Hat Inc, Steven Rostedt * */ #include #include #include #include "trace-cmd.h" #include "event-utils.h" struct hook_list *tracecmd_create_event_hook(const char *arg) { struct hook_list *hook; char *system = NULL; char *event; char *match; char *flags = NULL; char *pid = NULL; char *str; char *tok; int index; int ch; int i; hook = malloc(sizeof(*hook)); if (!hook) return NULL; memset(hook, 0, sizeof(*hook)); str = strdup(arg); if (!str) { free(hook); return NULL; } hook->str = str; hook->hook = arg; /* * Hooks are in the form of: * [:],[,]/ * [:],[,] * * Where start_system, start_pid, end_system, and flags are all * optional. * * Flags are (case insensitive): * P - pinned to cpu (wont migrate) * G - global, not hooked to task - currently ignored. * S - save stacks for this event. */ tok = strtok(str, ":,"); if (!tok) goto invalid_tok; /* See what the token was from the original arg */ index = strlen(tok); if (arg[index] == ':') { /* this is a system, the next token must be ',' */ system = tok; tok = strtok(NULL, ","); if (!tok) goto invalid_tok; } event = tok; tok = strtok(NULL, ",/"); if (!tok) goto invalid_tok; match = tok; index = strlen(tok) + tok - str; if (arg[index] == ',') { tok = strtok(NULL, "/"); if (!tok) goto invalid_tok; pid = tok; } hook->start_system = system; hook->start_event = event; hook->start_match = match; hook->pid = pid; /* Now process the end event */ system = NULL; tok = strtok(NULL, ":,"); if (!tok) goto invalid_tok; /* See what the token was from the original arg */ index = tok - str + strlen(tok); if (arg[index] == ':') { /* this is a system, the next token must be ',' */ system = tok; tok = strtok(NULL, ","); if (!tok) goto invalid_tok; } event = tok; tok = strtok(NULL, ","); if (!tok) goto invalid_tok; match = tok; index = strlen(tok) + tok - str; if (arg[index] == ',') { tok = strtok(NULL, ""); if (!tok) goto invalid_tok; flags = tok; } hook->end_system = system; hook->end_event = event; hook->end_match = match; hook->migrate = 1; if (flags) { for (i = 0; flags[i]; i++) { ch = tolower(flags[i]); switch (ch) { case 'p': hook->migrate = 0; break; case 'g': hook->global = 1; break; case 's': hook->stack = 1; break; default: warning("unknown flag %c\n", flags[i]); } } } printf("start %s:%s:%s (%s) end %s:%s:%s (%s)\n", hook->start_system, hook->start_event, hook->start_match, hook->pid, hook->end_system, hook->end_event, hook->end_match, flags); return hook; invalid_tok: warning("Invalid hook format '%s'", arg); return NULL; } void tracecmd_free_hooks(struct hook_list *hooks) { struct hook_list *hook; while (hooks) { hook = hooks; hooks = hooks->next; free(hook->str); free(hook); } } trace-cmd-2.8.3/lib/trace-cmd/trace-input.c000066400000000000000000002217511351617527000204060ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt * */ #define _LARGEFILE64_SOURCE #include #include #include #include #include #include #include #include #include #include "trace-cmd-local.h" #include "trace-local.h" #include "kbuffer.h" #include "list.h" #define MISSING_EVENTS (1 << 31) #define MISSING_STORED (1 << 30) #define COMMIT_MASK ((1 << 27) - 1) /* for debugging read instead of mmap */ static int force_read = 0; struct page_map { struct list_head list; off64_t offset; off64_t size; void *map; int ref_count; }; struct page { struct list_head list; off64_t offset; struct tracecmd_input *handle; struct page_map *page_map; void *map; int ref_count; int cpu; long long lost_events; #if DEBUG_RECORD struct tep_record *records; #endif }; struct cpu_data { /* the first two never change */ unsigned long long file_offset; unsigned long long file_size; unsigned long long offset; unsigned long long size; unsigned long long timestamp; struct list_head page_maps; struct page_map *page_map; struct page **pages; struct tep_record *next; struct page *page; struct kbuffer *kbuf; int nr_pages; int page_cnt; int cpu; int pipe_fd; }; struct input_buffer_instance { char *name; size_t offset; }; struct tracecmd_input { struct tep_handle *pevent; struct tep_plugin_list *plugin_list; struct tracecmd_input *parent; unsigned long flags; int fd; int long_size; int page_size; int page_map_size; int cpus; int ref; int nr_buffers; /* buffer instances */ bool use_trace_clock; bool read_page; bool use_pipe; struct cpu_data *cpu_data; unsigned long long ts_offset; double ts2secs; char * cpustats; char * uname; char * version; struct input_buffer_instance *buffers; int parsing_failures; struct tracecmd_ftrace finfo; struct hook_list *hooks; /* file information */ size_t header_files_start; size_t ftrace_files_start; size_t event_files_start; size_t total_file_size; /* For custom profilers. */ tracecmd_show_data_func show_data_func; }; __thread struct tracecmd_input *tracecmd_curr_thread_handle; void tracecmd_set_flag(struct tracecmd_input *handle, int flag) { handle->flags |= flag; } void tracecmd_clear_flag(struct tracecmd_input *handle, int flag) { handle->flags &= ~flag; } unsigned long tracecmd_get_flags(struct tracecmd_input *handle) { return handle->flags; } #if DEBUG_RECORD static void remove_record(struct page *page, struct tep_record *record) { if (record->prev) record->prev->next = record->next; else page->records = record->next; if (record->next) record->next->prev = record->prev; } static void add_record(struct page *page, struct tep_record *record) { if (page->records) page->records->prev = record; record->next = page->records; record->prev = NULL; page->records = record; } static const char *show_records(struct page **pages, int nr_pages) { static char buf[BUFSIZ + 1]; struct tep_record *record; struct page *page; int len; int i; memset(buf, 0, sizeof(buf)); len = 0; for (i = 0; i < nr_pages; i++) { page = pages[i]; if (!page) continue; for (record = page->records; record; record = record->next) { int n; n = snprintf(buf+len, BUFSIZ - len, " 0x%lx", record->alloc_addr); len += n; if (len >= BUFSIZ) break; } } return buf; } #else static inline void remove_record(struct page *page, struct tep_record *record) {} static inline void add_record(struct page *page, struct tep_record *record) {} static const char *show_records(struct page **pages, int nr_pages) { return ""; } #endif static int init_cpu(struct tracecmd_input *handle, int cpu); static ssize_t do_read(struct tracecmd_input *handle, void *data, size_t size) { ssize_t tot = 0; ssize_t r; do { r = read(handle->fd, data + tot, size - tot); tot += r; if (!r) break; if (r < 0) return r; } while (tot != size); return tot; } static ssize_t do_read_check(struct tracecmd_input *handle, void *data, size_t size) { ssize_t ret; ret = do_read(handle, data, size); if (ret < 0) return ret; if (ret != size) return -1; return 0; } static char *read_string(struct tracecmd_input *handle) { char buf[BUFSIZ]; char *str = NULL; size_t size = 0; ssize_t i; ssize_t r; for (;;) { r = do_read(handle, buf, BUFSIZ); if (r < 0) goto fail; if (!r) goto fail; for (i = 0; i < r; i++) { if (!buf[i]) break; } if (i < r) break; if (str) { size += BUFSIZ; str = realloc(str, size); if (!str) return NULL; memcpy(str + (size - BUFSIZ), buf, BUFSIZ); } else { size = BUFSIZ; str = malloc(size); if (!str) return NULL; memcpy(str, buf, size); } } /* move the file descriptor to the end of the string */ r = lseek(handle->fd, -(r - (i+1)), SEEK_CUR); if (r < 0) goto fail; if (str) { size += i + 1; str = realloc(str, size); if (!str) return NULL; memcpy(str + (size - i), buf, i); str[size] = 0; } else { size = i + 1; str = malloc(size); if (!str) return NULL; memcpy(str, buf, i); str[i] = 0; } return str; fail: if (str) free(str); return NULL; } static int read4(struct tracecmd_input *handle, unsigned int *size) { struct tep_handle *pevent = handle->pevent; unsigned int data; if (do_read_check(handle, &data, 4)) return -1; *size = tep_read_number(pevent, &data, 4); return 0; } static int read8(struct tracecmd_input *handle, unsigned long long *size) { struct tep_handle *pevent = handle->pevent; unsigned long long data; if (do_read_check(handle, &data, 8)) return -1; *size = tep_read_number(pevent, &data, 8); return 0; } static int read_header_files(struct tracecmd_input *handle) { struct tep_handle *pevent = handle->pevent; unsigned long long size; char *header; char buf[BUFSIZ]; if (do_read_check(handle, buf, 12)) return -1; if (memcmp(buf, "header_page", 12) != 0) return -1; if (read8(handle, &size) < 0) return -1; header = malloc(size); if (!header) return -1; if (do_read_check(handle, header, size)) goto failed_read; tep_parse_header_page(pevent, header, size, handle->long_size); free(header); /* * The size field in the page is of type long, * use that instead, since it represents the kernel. */ handle->long_size = tep_get_header_page_size(pevent); if (do_read_check(handle, buf, 13)) return -1; if (memcmp(buf, "header_event", 13) != 0) return -1; if (read8(handle, &size) < 0) return -1; header = malloc(size); if (!header) return -1; if (do_read_check(handle, header, size)) goto failed_read; free(header); handle->ftrace_files_start = lseek64(handle->fd, 0, SEEK_CUR); return 0; failed_read: free(header); return -1; } static int regex_event_buf(const char *file, int size, regex_t *epreg) { char *buf; char *line; int ret; buf = malloc(size + 1); if (!buf) { warning("Insufficient memory"); return 0; } strncpy(buf, file, size); buf[size] = 0; /* get the name from the first line */ line = strtok(buf, "\n"); if (!line) { warning("No newline found in '%s'", buf); return 0; } /* skip name if it is there */ if (strncmp(line, "name: ", 6) == 0) line += 6; ret = regexec(epreg, line, 0, NULL, 0) == 0; free(buf); return ret; } static int read_ftrace_file(struct tracecmd_input *handle, unsigned long long size, int print, regex_t *epreg) { struct tep_handle *pevent = handle->pevent; char *buf; buf = malloc(size); if (!buf) return -1; if (do_read_check(handle, buf, size)) { free(buf); return -1; } if (epreg) { if (print || regex_event_buf(buf, size, epreg)) printf("%.*s\n", (int)size, buf); } else { if (tep_parse_event(pevent, buf, size, "ftrace")) handle->parsing_failures++; } free(buf); return 0; } static int read_event_file(struct tracecmd_input *handle, char *system, unsigned long long size, int print, int *sys_printed, regex_t *epreg) { struct tep_handle *pevent = handle->pevent; char *buf; buf = malloc(size); if (!buf) return -1; if (do_read_check(handle, buf, size)) { free(buf); return -1; } if (epreg) { if (print || regex_event_buf(buf, size, epreg)) { if (!*sys_printed) { printf("\nsystem: %s\n", system); *sys_printed = 1; } printf("%.*s\n", (int)size, buf); } } else { if (tep_parse_event(pevent, buf, size, system)) handle->parsing_failures++; } free(buf); return 0; } static int make_preg_files(const char *regex, regex_t *system, regex_t *event, int *unique) { char *buf; char *sstr; char *estr; int ret; /* unique is set if a colon is found */ *unique = 0; /* split "system:event" into "system" and "event" */ buf = strdup(regex); if (!buf) return -ENOMEM; sstr = strtok(buf, ":"); estr = strtok(NULL, ":"); /* If no colon is found, set event == system */ if (!estr) estr = sstr; else *unique = 1; ret = regcomp(system, sstr, REG_ICASE|REG_NOSUB); if (ret) { warning("Bad regular expression '%s'", sstr); goto out; } ret = regcomp(event, estr, REG_ICASE|REG_NOSUB); if (ret) { warning("Bad regular expression '%s'", estr); goto out; } out: free(buf); return ret; } static int read_ftrace_files(struct tracecmd_input *handle, const char *regex) { unsigned long long size; regex_t spreg; regex_t epreg; regex_t *sreg = NULL; regex_t *ereg = NULL; unsigned int count, i; int print_all = 0; int unique; int ret; if (regex) { sreg = &spreg; ereg = &epreg; ret = make_preg_files(regex, sreg, ereg, &unique); if (ret) return -1; if (regexec(sreg, "ftrace", 0, NULL, 0) == 0) { /* * If the system matches a regex that did * not contain a colon, then print all events. */ if (!unique) print_all = 1; } else if (unique) { /* * The user specified a unique event that did * not match the ftrace system. Don't print any * events here. */ regfree(sreg); regfree(ereg); sreg = NULL; ereg = NULL; } } if (read4(handle, &count) < 0) return -1; for (i = 0; i < count; i++) { if (read8(handle, &size) < 0) return -1; ret = read_ftrace_file(handle, size, print_all, ereg); if (ret < 0) return -1; } handle->event_files_start = lseek64(handle->fd, 0, SEEK_CUR); if (sreg) { regfree(sreg); regfree(ereg); } return 0; } static int read_event_files(struct tracecmd_input *handle, const char *regex) { unsigned long long size; char *system; regex_t spreg; regex_t epreg; regex_t *sreg = NULL; regex_t *ereg = NULL; regex_t *reg; unsigned int systems; unsigned int count; unsigned int i, x; int print_all; int sys_printed; int unique; int ret; if (regex) { sreg = &spreg; ereg = &epreg; ret = make_preg_files(regex, sreg, ereg, &unique); if (ret) return -1; } if (read4(handle, &systems) < 0) return -1; for (i = 0; i < systems; i++) { system = read_string(handle); if (!system) return -1; sys_printed = 0; print_all = 0; reg = ereg; if (sreg) { if (regexec(sreg, system, 0, NULL, 0) == 0) { /* * If the user passed in a regex that * did not contain a colon, then we can * print all the events of this system. */ if (!unique) print_all = 1; } else if (unique) { /* * The user passed in a unique event that * specified a specific system and event. * Since this system doesn't match this * event, then we don't print any events * for this system. */ reg = NULL; } } if (read4(handle, &count) < 0) goto failed; for (x=0; x < count; x++) { if (read8(handle, &size) < 0) goto failed; ret = read_event_file(handle, system, size, print_all, &sys_printed, reg); if (ret < 0) goto failed; } free(system); } if (sreg) { regfree(sreg); regfree(ereg); } return 0; failed: if (sreg) { regfree(sreg); regfree(ereg); } free(system); return -1; } static int read_proc_kallsyms(struct tracecmd_input *handle) { struct tep_handle *pevent = handle->pevent; unsigned int size; char *buf; if (read4(handle, &size) < 0) return -1; if (!size) return 0; /* OK? */ buf = malloc(size+1); if (!buf) return -1; if (do_read_check(handle, buf, size)){ free(buf); return -1; } buf[size] = 0; tracecmd_parse_proc_kallsyms(pevent, buf, size); free(buf); return 0; } static int read_ftrace_printk(struct tracecmd_input *handle) { unsigned int size; char *buf; if (read4(handle, &size) < 0) return -1; if (!size) return 0; /* OK? */ buf = malloc(size + 1); if (!buf) return -1; if (do_read_check(handle, buf, size)) { free(buf); return -1; } buf[size] = 0; tracecmd_parse_ftrace_printk(handle->pevent, buf, size); free(buf); return 0; } static int read_and_parse_cmdlines(struct tracecmd_input *handle); /** * tracecmd_get_parsing_failures - get the count of parsing failures * @handle: input handle for the trace.dat file * * This returns the count of failures while parsing the event files */ int tracecmd_get_parsing_failures(struct tracecmd_input *handle) { if (handle) return handle->parsing_failures; return 0; } /** * tracecmd_read_headers - read the header information from trace.dat * @handle: input handle for the trace.dat file * * This reads the trace.dat file for various information. Like the * format of the ring buffer, event formats, ftrace formats, kallsyms * and printk. */ int tracecmd_read_headers(struct tracecmd_input *handle) { int ret; handle->parsing_failures = 0; ret = read_header_files(handle); if (ret < 0) return -1; ret = read_ftrace_files(handle, NULL); if (ret < 0) return -1; ret = read_event_files(handle, NULL); if (ret < 0) return -1; ret = read_proc_kallsyms(handle); if (ret < 0) return -1; ret = read_ftrace_printk(handle); if (ret < 0) return -1; if (read_and_parse_cmdlines(handle) < 0) return -1; tep_set_long_size(handle->pevent, handle->long_size); return 0; } static unsigned long long calc_page_offset(struct tracecmd_input *handle, unsigned long long offset) { return offset & ~(handle->page_size - 1); } static int read_page(struct tracecmd_input *handle, off64_t offset, int cpu, void *map) { off64_t save_seek; off64_t ret; if (handle->use_pipe) { ret = read(handle->cpu_data[cpu].pipe_fd, map, handle->page_size); /* Set EAGAIN if the pipe is empty */ if (ret < 0) { errno = EAGAIN; return -1; } else if (ret == 0) { /* Set EINVAL when the pipe has closed */ errno = EINVAL; return -1; } return 0; } /* other parts of the code may expect the pointer to not move */ save_seek = lseek64(handle->fd, 0, SEEK_CUR); ret = lseek64(handle->fd, offset, SEEK_SET); if (ret < 0) return -1; ret = read(handle->fd, map, handle->page_size); if (ret < 0) return -1; /* reset the file pointer back */ lseek64(handle->fd, save_seek, SEEK_SET); return 0; } /* page_map_size must be a power of two */ static unsigned long long normalize_size(unsigned long long size) { /* From Hacker's Delight: or bits after first set bit to all 1s */ size |= (size >> 1); size |= (size >> 2); size |= (size >> 4); size |= (size >> 8); size |= (size >> 16); size |= (size >> 32); /* Clear all bits except first one for previous power of two */ return size - (size >> 1); } static void free_page_map(struct page_map *page_map) { page_map->ref_count--; if (page_map->ref_count) return; munmap(page_map->map, page_map->size); list_del(&page_map->list); free(page_map); } static void *allocate_page_map(struct tracecmd_input *handle, struct page *page, int cpu, off64_t offset) { struct cpu_data *cpu_data = &handle->cpu_data[cpu]; struct page_map *page_map; off64_t map_size; off64_t map_offset; void *map; int ret; if (handle->read_page) { map = malloc(handle->page_size); if (!map) return NULL; ret = read_page(handle, offset, cpu, map); if (ret < 0) { free(map); return NULL; } return map; } map_size = handle->page_map_size; map_offset = offset & ~(map_size - 1); if (map_offset < cpu_data->file_offset) { map_size -= cpu_data->file_offset - map_offset; map_offset = cpu_data->file_offset; } page_map = cpu_data->page_map; if (page_map && page_map->offset == map_offset) goto out; list_for_each_entry(page_map, &cpu_data->page_maps, list) { if (page_map->offset == map_offset) goto out; } page_map = calloc(1, sizeof(*page_map)); if (!page_map) return NULL; if (map_offset + map_size > cpu_data->file_offset + cpu_data->file_size) map_size -= map_offset + map_size - (cpu_data->file_offset + cpu_data->file_size); again: page_map->size = map_size; page_map->offset = map_offset; page_map->map = mmap(NULL, map_size, PROT_READ, MAP_PRIVATE, handle->fd, map_offset); if (page->map == MAP_FAILED) { /* Try a smaller map */ map_size >>= 1; if (map_size < handle->page_size) { free(page_map); return NULL; } handle->page_map_size = map_size; map_offset = offset & ~(map_size - 1); /* * Note, it is now possible to get duplicate memory * maps. But that's fine, the previous maps with * larger sizes will eventually be unmapped. */ goto again; } list_add(&page_map->list, &cpu_data->page_maps); out: if (cpu_data->page_map != page_map) { struct page_map *old_map = cpu_data->page_map; cpu_data->page_map = page_map; page_map->ref_count++; if (old_map) free_page_map(old_map); } page->page_map = page_map; page_map->ref_count++; return page_map->map + offset - page_map->offset; } static struct page *allocate_page(struct tracecmd_input *handle, int cpu, off64_t offset) { struct cpu_data *cpu_data = &handle->cpu_data[cpu]; struct page **pages; struct page *page; int index; index = (offset - cpu_data->file_offset) / handle->page_size; if (index >= cpu_data->nr_pages) { pages = realloc(cpu_data->pages, (index + 1) * sizeof(*cpu_data->pages)); if (!pages) return NULL; memset(pages + cpu_data->nr_pages, 0, (index + 1 - cpu_data->nr_pages) * sizeof(*cpu_data->pages)); cpu_data->pages = pages; cpu_data->nr_pages = index + 1; } if (cpu_data->pages[index]) { cpu_data->pages[index]->ref_count++; return cpu_data->pages[index]; } page = malloc(sizeof(*page)); if (!page) return NULL; memset(page, 0, sizeof(*page)); page->offset = offset; page->handle = handle; page->cpu = cpu; page->map = allocate_page_map(handle, page, cpu, offset); if (!page->map) { free(page); return NULL; } cpu_data->pages[index] = page; cpu_data->page_cnt++; page->ref_count = 1; return page; } static void __free_page(struct tracecmd_input *handle, struct page *page) { struct cpu_data *cpu_data = &handle->cpu_data[page->cpu]; struct page **pages; int index; if (!page->ref_count) die("Page ref count is zero!\n"); page->ref_count--; if (page->ref_count) return; if (handle->read_page) free(page->map); else free_page_map(page->page_map); index = (page->offset - cpu_data->file_offset) / handle->page_size; cpu_data->pages[index] = NULL; cpu_data->page_cnt--; free(page); if (handle->use_pipe) { for (index = cpu_data->nr_pages - 1; index > 0; index--) if (cpu_data->pages[index]) break; if (index < (cpu_data->nr_pages - 1)) { pages = realloc(cpu_data->pages, (index + 1) * sizeof(*cpu_data->pages)); if (!pages) return; cpu_data->pages = pages; cpu_data->nr_pages = index + 1; } } } static void free_page(struct tracecmd_input *handle, int cpu) { if (!handle->cpu_data || cpu >= handle->cpus || !handle->cpu_data[cpu].page) return; __free_page(handle, handle->cpu_data[cpu].page); handle->cpu_data[cpu].page = NULL; } static void __free_record(struct tep_record *record) { if (record->priv) { struct page *page = record->priv; remove_record(page, record); __free_page(page->handle, page); } free(record); } void free_record(struct tep_record *record) { if (!record) return; if (!record->ref_count) die("record ref count is zero!"); record->ref_count--; if (record->ref_count) return; if (record->locked) die("freeing record when it is locked!"); record->data = NULL; __free_record(record); } void tracecmd_record_ref(struct tep_record *record) { record->ref_count++; #if DEBUG_RECORD /* Update locating of last reference */ record->alloc_addr = (unsigned long)__builtin_return_address(0); #endif } static void free_next(struct tracecmd_input *handle, int cpu) { struct tep_record *record; if (!handle->cpu_data || cpu >= handle->cpus) return; record = handle->cpu_data[cpu].next; if (!record) return; handle->cpu_data[cpu].next = NULL; record->locked = 0; free_record(record); } /* * Page is mapped, now read in the page header info. */ static int update_page_info(struct tracecmd_input *handle, int cpu) { struct tep_handle *pevent = handle->pevent; void *ptr = handle->cpu_data[cpu].page->map; struct kbuffer *kbuf = handle->cpu_data[cpu].kbuf; /* FIXME: handle header page */ if (tep_get_header_timestamp_size(pevent) != 8) { warning("expected a long long type for timestamp"); return -1; } kbuffer_load_subbuffer(kbuf, ptr); if (kbuffer_subbuffer_size(kbuf) > handle->page_size) { warning("bad page read, with size of %d", kbuffer_subbuffer_size(kbuf)); return -1; } handle->cpu_data[cpu].timestamp = kbuffer_timestamp(kbuf) + handle->ts_offset; if (handle->ts2secs) handle->cpu_data[cpu].timestamp *= handle->ts2secs; return 0; } /* * get_page maps a page for a given cpu. * * Returns 1 if the page was already mapped, * 0 if it mapped successfully * -1 on error */ static int get_page(struct tracecmd_input *handle, int cpu, off64_t offset) { /* Don't map if the page is already where we want */ if (handle->cpu_data[cpu].offset == offset && handle->cpu_data[cpu].page) return 1; /* Do not map no data for CPU */ if (!handle->cpu_data[cpu].size) return -1; if (offset & (handle->page_size - 1)) { errno = -EINVAL; die("bad page offset %llx", offset); return -1; } if (offset < handle->cpu_data[cpu].file_offset || offset > handle->cpu_data[cpu].file_offset + handle->cpu_data[cpu].file_size) { errno = -EINVAL; die("bad page offset %llx", offset); return -1; } handle->cpu_data[cpu].offset = offset; handle->cpu_data[cpu].size = (handle->cpu_data[cpu].file_offset + handle->cpu_data[cpu].file_size) - offset; free_page(handle, cpu); handle->cpu_data[cpu].page = allocate_page(handle, cpu, offset); if (!handle->cpu_data[cpu].page) return -1; if (update_page_info(handle, cpu)) return -1; return 0; } static int get_next_page(struct tracecmd_input *handle, int cpu) { off64_t offset; if (!handle->cpu_data[cpu].page && !handle->use_pipe) return 0; free_page(handle, cpu); if (handle->cpu_data[cpu].size <= handle->page_size) { handle->cpu_data[cpu].offset = 0; return 0; } offset = handle->cpu_data[cpu].offset + handle->page_size; return get_page(handle, cpu, offset); } static struct tep_record * peek_event(struct tracecmd_input *handle, unsigned long long offset, int cpu) { struct tep_record *record = NULL; /* * Since the timestamp is calculated from the beginning * of the page and through each event, we reset the * page to the beginning. This is just used by * tracecmd_read_at. */ update_page_info(handle, cpu); do { free_next(handle, cpu); record = tracecmd_peek_data(handle, cpu); if (record && (record->offset + record->record_size) > offset) break; } while (record); return record; } static struct tep_record * read_event(struct tracecmd_input *handle, unsigned long long offset, int cpu) { struct tep_record *record; record = peek_event(handle, offset, cpu); if (record) record = tracecmd_read_data(handle, cpu); return record; } static struct tep_record * find_and_peek_event(struct tracecmd_input *handle, unsigned long long offset, int *pcpu) { unsigned long long page_offset; int cpu; /* find the cpu that this offset exists in */ for (cpu = 0; cpu < handle->cpus; cpu++) { if (offset >= handle->cpu_data[cpu].file_offset && offset < handle->cpu_data[cpu].file_offset + handle->cpu_data[cpu].file_size) break; } /* Not found? */ if (cpu == handle->cpus) return NULL; /* Move this cpu index to point to this offest */ page_offset = calc_page_offset(handle, offset); if (get_page(handle, cpu, page_offset) < 0) return NULL; if (pcpu) *pcpu = cpu; return peek_event(handle, offset, cpu); } static struct tep_record * find_and_read_event(struct tracecmd_input *handle, unsigned long long offset, int *pcpu) { struct tep_record *record; int cpu; record = find_and_peek_event(handle, offset, &cpu); if (record) { record = tracecmd_read_data(handle, cpu); if (pcpu) *pcpu = cpu; } return record; } /** * tracecmd_read_at - read a record from a specific offset * @handle: input handle for the trace.dat file * @offset: the offset into the file to find the record * @pcpu: pointer to a variable to store the CPU id the record was found in * * This function is useful when looking for a previous record. * You can store the offset of the record "record->offset" and use that * offset to retreive the record again without needing to store any * other information about the record. * * The record returned must be freed. */ struct tep_record * tracecmd_read_at(struct tracecmd_input *handle, unsigned long long offset, int *pcpu) { unsigned long long page_offset; int cpu; page_offset = calc_page_offset(handle, offset); /* check to see if we have this page already */ for (cpu = 0; cpu < handle->cpus; cpu++) { if (handle->cpu_data[cpu].offset == page_offset && handle->cpu_data[cpu].file_size) break; } if (cpu < handle->cpus) { if (pcpu) *pcpu = cpu; return read_event(handle, offset, cpu); } else return find_and_read_event(handle, offset, pcpu); } /** * tracecmd_refresh_record - remaps the records data * @handle: input handle for the trace.dat file * @record: the record to be refreshed * * A record data points to a mmap section of memory. * by reading new records the mmap section may be unmapped. * This will refresh the record's data mapping. * * ===== OBSOLETED BY PAGE REFERENCES ===== * * Returns 1 if page is still mapped (does not modify CPU iterator) * 0 on successful mapping (was not mapped before, * This will update CPU iterator to point to * the next record) * -1 on error. */ int tracecmd_refresh_record(struct tracecmd_input *handle, struct tep_record *record) { unsigned long long page_offset; int cpu = record->cpu; struct cpu_data *cpu_data = &handle->cpu_data[cpu]; int index; int ret; page_offset = calc_page_offset(handle, record->offset); index = record->offset & (handle->page_size - 1); ret = get_page(handle, record->cpu, page_offset); if (ret < 0) return -1; /* If the page is still mapped, there's nothing to do */ if (ret) return 1; record->data = kbuffer_read_at_offset(cpu_data->kbuf, index, &record->ts); cpu_data->timestamp = record->ts; return 0; } /** * tracecmd_read_cpu_first - get the first record in a CPU * @handle: input handle for the trace.dat file * @cpu: the CPU to search * * This returns the first (by time) record entry in a given CPU. * * The record returned must be freed. */ struct tep_record * tracecmd_read_cpu_first(struct tracecmd_input *handle, int cpu) { int ret; ret = get_page(handle, cpu, handle->cpu_data[cpu].file_offset); if (ret < 0) return NULL; /* If the page was already mapped, we need to reset it */ if (ret) update_page_info(handle, cpu); free_next(handle, cpu); return tracecmd_read_data(handle, cpu); } /** * tracecmd_read_cpu_last - get the last record in a CPU * @handle: input handle for the trace.dat file * @cpu: the CPU to search * * This returns the last (by time) record entry in a given CPU. * * The record returned must be freed. */ struct tep_record * tracecmd_read_cpu_last(struct tracecmd_input *handle, int cpu) { struct tep_record *record = NULL; off64_t offset, page_offset; offset = handle->cpu_data[cpu].file_offset + handle->cpu_data[cpu].file_size; if (offset & (handle->page_size - 1)) offset &= ~(handle->page_size - 1); else offset -= handle->page_size; page_offset = offset; again: if (get_page(handle, cpu, page_offset) < 0) return NULL; offset = page_offset; do { free_record(record); record = tracecmd_read_data(handle, cpu); if (record) offset = record->offset; } while (record); record = tracecmd_read_at(handle, offset, NULL); /* * It is possible that a page has just a timestamp * or just padding on it. */ if (!record) { if (page_offset == handle->cpu_data[cpu].file_offset) return NULL; page_offset -= handle->page_size; goto again; } return record; } /** * tracecmd_set_cpu_to_timestamp - set the CPU iterator to a given time * @handle: input handle for the trace.dat file * @cpu: the CPU pointer to set * @ts: the timestamp to set the CPU at. * * This sets the CPU iterator used by tracecmd_read_data and * tracecmd_peek_data to a location in the CPU storage near * a given timestamp. It will try to set the iterator to a time before * the time stamp and not actually at a given time. * * To use this to find a record in a time field, call this function * first, than iterate with tracecmd_read_data to find the records * you need. */ int tracecmd_set_cpu_to_timestamp(struct tracecmd_input *handle, int cpu, unsigned long long ts) { struct cpu_data *cpu_data = &handle->cpu_data[cpu]; off64_t start, end, next; if (cpu < 0 || cpu >= handle->cpus) { errno = -EINVAL; return -1; } if (!cpu_data->size) return -1; if (!cpu_data->page) { if (init_cpu(handle, cpu)) return -1; } if (cpu_data->timestamp == ts) { /* * If a record is cached, then that record is most * likely the matching timestamp. Otherwise we need * to start from the beginning of the index; */ if (!cpu_data->next || cpu_data->next->ts != ts) update_page_info(handle, cpu); return 0; } /* Set to the first record on current page */ update_page_info(handle, cpu); if (cpu_data->timestamp < ts) { start = cpu_data->offset; end = cpu_data->file_offset + cpu_data->file_size; if (end & (handle->page_size - 1)) end &= ~(handle->page_size - 1); else end -= handle->page_size; next = end; } else { end = cpu_data->offset; start = cpu_data->file_offset; next = start; } while (start < end) { if (get_page(handle, cpu, next) < 0) return -1; if (cpu_data->timestamp == ts) break; if (cpu_data->timestamp < ts) start = next; else end = next; next = start + (end - start) / 2; next = calc_page_offset(handle, next); /* Prevent an infinite loop if start and end are a page off */ if (next == start) start = next += handle->page_size; } /* * We need to end up on a page before the time stamp. * We go back even if the timestamp is the same. This is because * we want the event with the timestamp, not the page. The page * can start with the timestamp we are looking for, but the event * may be on the previous page. */ if (cpu_data->timestamp >= ts && cpu_data->offset > cpu_data->file_offset) get_page(handle, cpu, cpu_data->offset - handle->page_size); return 0; } /** * tracecmd_set_all_cpus_to_timestamp - set all CPUs iterator to a given time * @handle: input handle for the trace.dat file * @cpu: the CPU pointer to set * @ts: the timestamp to set the CPU at. * * This sets the CPU iterator used by tracecmd_read_data and * tracecmd_peek_data to a location in the CPU storage near * a given timestamp. It will try to set the iterator to a time before * the time stamp and not actually at a given time. * * To use this to find a record in a time field, call this function * first, than iterate with tracecmd_read_next_data to find the records * you need. */ void tracecmd_set_all_cpus_to_timestamp(struct tracecmd_input *handle, unsigned long long time) { int cpu; for (cpu = 0; cpu < handle->cpus; cpu++) tracecmd_set_cpu_to_timestamp(handle, cpu, time); } /** * tracecmd_set_cursor - set the offset for the next tracecmd_read_data * @handle: input handle for the trace.dat file * @cpu: the CPU pointer to set * @offset: the offset to place the cursor * * Set the pointer to the next read or peek. This is useful when * needing to read sequentially and then look at another record * out of sequence without breaking the iteration. This is done with: * * record = tracecmd_peek_data() * offset = record->offset; * record = tracecmd_read_at(); * - do what ever with record - * tracecmd_set_cursor(handle, cpu, offset); * * Now the next tracecmd_peek_data or tracecmd_read_data will return * the original record. */ int tracecmd_set_cursor(struct tracecmd_input *handle, int cpu, unsigned long long offset) { struct cpu_data *cpu_data = &handle->cpu_data[cpu]; unsigned long long page_offset; if (cpu < 0 || cpu >= handle->cpus) return -1; if (offset < cpu_data->file_offset || offset > cpu_data->file_offset + cpu_data->file_size) return -1; /* cpu does not have this offset. */ /* Move this cpu index to point to this offest */ page_offset = calc_page_offset(handle, offset); if (get_page(handle, cpu, page_offset) < 0) return -1; peek_event(handle, offset, cpu); return 0; } /** * tracecmd_get_cursor - get the offset for the next tracecmd_read_data * @handle: input handle for the trace.dat file * @cpu: the CPU pointer to get the cursor from * * Returns the offset of the next record that would be read. */ unsigned long long tracecmd_get_cursor(struct tracecmd_input *handle, int cpu) { struct cpu_data *cpu_data = &handle->cpu_data[cpu]; struct kbuffer *kbuf = cpu_data->kbuf; if (cpu < 0 || cpu >= handle->cpus) return 0; /* * Use the next pointer if it exists and matches the * current timestamp. */ if (cpu_data->next && cpu_data->next->ts == cpu_data->timestamp) return cpu_data->next->offset; /* * Either the next point does not exist, or it does * not match the timestamp. The next read will use the * current page. * * If the offset is at the end, then return that. */ if (cpu_data->offset >= cpu_data->file_offset + cpu_data->file_size) return cpu_data->offset; return cpu_data->offset + kbuffer_curr_offset(kbuf); } /** * tracecmd_translate_data - create a record from raw data * @handle: input handle for the trace.dat file * @ptr: raw data to read * @size: the size of the data * * This function tries to create a record from some given * raw data. The data does not need to be from the trace.dat file. * It can be stored from another location. * * Note, since the timestamp is calculated from within the trace * buffer, the timestamp for the record will be zero, since it * can't calculate it. * * The record returned must be freed. */ struct tep_record * tracecmd_translate_data(struct tracecmd_input *handle, void *ptr, int size) { struct tep_handle *pevent = handle->pevent; struct tep_record *record; unsigned int length; int swap = 1; /* minimum record read is 8, (warn?) (TODO: make 8 into macro) */ if (size < 8) return NULL; record = malloc(sizeof(*record)); if (!record) return NULL; memset(record, 0, sizeof(*record)); record->ref_count = 1; if (tep_is_local_bigendian(pevent) == tep_is_file_bigendian(pevent)) swap = 0; record->data = kbuffer_translate_data(swap, ptr, &length); record->size = length; if (record->data) record->record_size = record->size + (record->data - ptr); return record; } /** * tracecmd_read_page_record - read a record off of a page * @pevent: pevent used to parse the page * @page: the page to read * @size: the size of the page * @last_record: last record read from this page. * * If a ring buffer page is available, and the need to parse it * without having a handle, then this function can be used. * * The @pevent needs to be initialized to have the page header information * already available. * * The @last_record is used to know where to read the next record from. * If @last_record is NULL, the first record on the page will be read. * * Returns: * A newly allocated record that must be freed with free_record() if * a record is found. Otherwise NULL is returned if the record is bad * or no more records exist. */ struct tep_record * tracecmd_read_page_record(struct tep_handle *pevent, void *page, int size, struct tep_record *last_record) { unsigned long long ts; struct kbuffer *kbuf; struct tep_record *record = NULL; enum kbuffer_long_size long_size; enum kbuffer_endian endian; void *ptr; if (tep_is_file_bigendian(pevent)) endian = KBUFFER_ENDIAN_BIG; else endian = KBUFFER_ENDIAN_LITTLE; if (tep_get_header_page_size(pevent) == 8) long_size = KBUFFER_LSIZE_8; else long_size = KBUFFER_LSIZE_4; kbuf = kbuffer_alloc(long_size, endian); if (!kbuf) return NULL; kbuffer_load_subbuffer(kbuf, page); if (kbuffer_subbuffer_size(kbuf) > size) { warning("tracecmd_read_page_record: page_size > size"); goto out_free; } if (last_record) { if (last_record->data < page || last_record->data >= (page + size)) { warning("tracecmd_read_page_record: bad last record (size=%u)", last_record->size); goto out_free; } do { ptr = kbuffer_next_event(kbuf, NULL); if (!ptr) break; } while (ptr < last_record->data); if (ptr != last_record->data) { warning("tracecmd_read_page_record: could not find last_record"); goto out_free; } } ptr = kbuffer_read_event(kbuf, &ts); if (!ptr) goto out_free; record = malloc(sizeof(*record)); if (!record) return NULL; memset(record, 0, sizeof(*record)); record->ts = ts; record->size = kbuffer_event_size(kbuf); record->record_size = kbuffer_curr_size(kbuf); record->cpu = 0; record->data = ptr; record->ref_count = 1; out_free: kbuffer_free(kbuf); return record; } /** * tracecmd_peek_data - return the record at the current location. * @handle: input handle for the trace.dat file * @cpu: the CPU to pull from * * This returns the record at the current location of the CPU * iterator. It does not increment the CPU iterator. */ struct tep_record * tracecmd_peek_data(struct tracecmd_input *handle, int cpu) { struct tep_record *record; unsigned long long ts; struct kbuffer *kbuf; struct page *page; int index; void *data; if (cpu >= handle->cpus) return NULL; page = handle->cpu_data[cpu].page; kbuf = handle->cpu_data[cpu].kbuf; /* Hack to work around function graph read ahead */ tracecmd_curr_thread_handle = handle; if (handle->cpu_data[cpu].next) { record = handle->cpu_data[cpu].next; if (!record->data) die("Something freed the record"); if (handle->cpu_data[cpu].timestamp == record->ts) return record; /* * The timestamp changed, which means the cached * record is no longer valid. Reread a new record. */ free_next(handle, cpu); } read_again: if (!page) { if (handle->use_pipe) { get_next_page(handle, cpu); page = handle->cpu_data[cpu].page; } if (!page) return NULL; } data = kbuffer_read_event(kbuf, &ts); if (!data) { if (get_next_page(handle, cpu)) return NULL; page = handle->cpu_data[cpu].page; goto read_again; } handle->cpu_data[cpu].timestamp = ts + handle->ts_offset; if (handle->ts2secs) { handle->cpu_data[cpu].timestamp *= handle->ts2secs; ts *= handle->ts2secs; } index = kbuffer_curr_offset(kbuf); record = malloc(sizeof(*record)); if (!record) return NULL; memset(record, 0, sizeof(*record)); record->ts = handle->cpu_data[cpu].timestamp; record->size = kbuffer_event_size(kbuf); record->cpu = cpu; record->data = data; record->offset = handle->cpu_data[cpu].offset + index; record->missed_events = kbuffer_missed_events(kbuf); record->ref_count = 1; record->locked = 1; handle->cpu_data[cpu].next = record; record->record_size = kbuffer_curr_size(kbuf); record->priv = page; add_record(page, record); page->ref_count++; kbuffer_next_event(kbuf, NULL); return record; } /** * tracecmd_read_data - read the next record and increment * @handle: input handle for the trace.dat file * @cpu: the CPU to pull from * * This returns the record at the current location of the CPU * iterator and increments the CPU iterator. * * The record returned must be freed. */ struct tep_record * tracecmd_read_data(struct tracecmd_input *handle, int cpu) { struct tep_record *record; record = tracecmd_peek_data(handle, cpu); handle->cpu_data[cpu].next = NULL; if (record) { record->locked = 0; #if DEBUG_RECORD record->alloc_addr = (unsigned long)__builtin_return_address(0); #endif } return record; } /** * tracecmd_read_next_data - read the next record * @handle: input handle to the trace.dat file * @rec_cpu: return pointer to the CPU that the record belongs to * * This returns the next record by time. This is different than * tracecmd_read_data in that it looks at all CPUs. It does a peek * at each CPU and the record with the earliest time stame is * returned. If @rec_cpu is not NULL it gets the CPU id the record was * on. The CPU cursor of the returned record is moved to the * next record. * * Multiple reads of this function will return a serialized list * of all records for all CPUs in order of time stamp. * * The record returned must be freed. */ struct tep_record * tracecmd_read_next_data(struct tracecmd_input *handle, int *rec_cpu) { struct tep_record *record; int next_cpu; record = tracecmd_peek_next_data(handle, &next_cpu); if (!record) return NULL; if (rec_cpu) *rec_cpu = next_cpu; return tracecmd_read_data(handle, next_cpu); } /** * tracecmd_peek_next_data - return the next record * @handle: input handle to the trace.dat file * @rec_cpu: return pointer to the CPU that the record belongs to * * This returns the next record by time. This is different than * tracecmd_peek_data in that it looks at all CPUs. It does a peek * at each CPU and the record with the earliest time stame is * returned. If @rec_cpu is not NULL it gets the CPU id the record was * on. It does not increment the CPU iterator. */ struct tep_record * tracecmd_peek_next_data(struct tracecmd_input *handle, int *rec_cpu) { unsigned long long ts; struct tep_record *record, *next_record = NULL; int next_cpu; int cpu; if (rec_cpu) *rec_cpu = -1; next_cpu = -1; ts = 0; for (cpu = 0; cpu < handle->cpus; cpu++) { record = tracecmd_peek_data(handle, cpu); if (record && (!next_record || record->ts < ts)) { ts = record->ts; next_cpu = cpu; next_record = record; } } if (next_record) { if (rec_cpu) *rec_cpu = next_cpu; return next_record; } return NULL; } /** * tracecmd_read_prev - read the record before the given record * @handle: input handle to the trace.dat file * @record: the record to use to find the previous record. * * This returns the record before the @record on its CPU. If * @record is the first record, NULL is returned. The cursor is set * as if the previous record was read by tracecmd_read_data(). * * @record can not be NULL, otherwise NULL is returned; the * record ownership goes to this function. * * Note, this is not that fast of an algorithm, since it needs * to build the timestamp for the record. * * The record returned must be freed with free_record(). */ struct tep_record * tracecmd_read_prev(struct tracecmd_input *handle, struct tep_record *record) { unsigned long long offset, page_offset;; struct cpu_data *cpu_data; int index; int cpu; if (!record) return NULL; cpu = record->cpu; offset = record->offset; cpu_data = &handle->cpu_data[cpu]; page_offset = calc_page_offset(handle, offset); index = offset - page_offset; /* Note, the record passed in could have been a peek */ free_next(handle, cpu); /* Reset the cursor */ /* Should not happen */ if (get_page(handle, cpu, page_offset) < 0) return NULL; update_page_info(handle, cpu); /* Find the record before this record */ index = 0; for (;;) { record = tracecmd_read_data(handle, cpu); /* Should not happen! */ if (!record) return NULL; if (record->offset == offset) break; index = record->offset - page_offset; free_record(record); } free_record(record); if (index) /* we found our record */ return tracecmd_read_at(handle, page_offset + index, NULL); /* reset the index to start at the beginning of the page */ update_page_info(handle, cpu); /* The previous record is on the previous page */ for (;;) { /* check if this is the first page */ if (page_offset == cpu_data->file_offset) return NULL; page_offset -= handle->page_size; /* Updating page to a new page will reset index to 0 */ get_page(handle, cpu, page_offset); record = NULL; index = 0; do { if (record) { index = record->offset - page_offset; free_record(record); } record = tracecmd_read_data(handle, cpu); /* Should not happen */ if (!record) return NULL; } while (record->offset != offset); free_record(record); if (index) /* we found our record */ return tracecmd_read_at(handle, page_offset + index, NULL); } /* Not reached */ } static int init_cpu(struct tracecmd_input *handle, int cpu) { struct cpu_data *cpu_data = &handle->cpu_data[cpu]; int i; cpu_data->offset = cpu_data->file_offset; cpu_data->size = cpu_data->file_size; cpu_data->timestamp = 0; list_head_init(&cpu_data->page_maps); if (!cpu_data->size) { printf("CPU %d is empty\n", cpu); return 0; } cpu_data->nr_pages = (cpu_data->size + handle->page_size - 1) / handle->page_size; if (!cpu_data->nr_pages) cpu_data->nr_pages = 1; cpu_data->pages = calloc(cpu_data->nr_pages, sizeof(*cpu_data->pages)); if (!cpu_data->pages) return -1; if (handle->use_pipe) { /* Just make a page, it will be nuked later */ cpu_data->page = malloc(sizeof(*cpu_data->page)); if (!cpu_data->page) goto fail; memset(cpu_data->page, 0, sizeof(*cpu_data->page)); cpu_data->pages[0] = cpu_data->page; cpu_data->page_cnt = 1; cpu_data->page->ref_count = 1; return 0; } cpu_data->page = allocate_page(handle, cpu, cpu_data->offset); if (!cpu_data->page && !handle->read_page) { perror("mmap"); fprintf(stderr, "Can not mmap file, will read instead\n"); if (cpu) { /* * If the other CPUs had size and was able to mmap * then bail. */ for (i = 0; i < cpu; i++) { if (handle->cpu_data[i].size) goto fail; } } /* try again without mmapping, just read it directly */ handle->read_page = true; cpu_data->page = allocate_page(handle, cpu, cpu_data->offset); if (!cpu_data->page) /* Still no luck, bail! */ goto fail; } if (update_page_info(handle, cpu)) goto fail; return 0; fail: free(cpu_data->pages); cpu_data->pages = NULL; free(cpu_data->page); cpu_data->page = NULL; return -1; } void tracecmd_set_ts_offset(struct tracecmd_input *handle, unsigned long long offset) { handle->ts_offset = offset; } void tracecmd_set_ts2secs(struct tracecmd_input *handle, unsigned long long hz) { double ts2secs; ts2secs = (double)NSEC_PER_SEC / (double)hz; handle->ts2secs = ts2secs; handle->use_trace_clock = false; } static int handle_options(struct tracecmd_input *handle) { unsigned long long offset; unsigned short option; unsigned int size; char *cpustats = NULL; unsigned int cpustats_size = 0; struct input_buffer_instance *buffer; struct hook_list *hook; char *buf; int cpus; for (;;) { if (do_read_check(handle, &option, 2)) return -1; if (option == TRACECMD_OPTION_DONE) break; /* next 4 bytes is the size of the option */ if (do_read_check(handle, &size, 4)) return -1; size = tep_read_number(handle->pevent, &size, 4); buf = malloc(size); if (!buf) return -ENOMEM; if (do_read_check(handle, buf, size)) return -1; switch (option) { case TRACECMD_OPTION_DATE: /* * A time has been mapped that is the * difference between the timestamps and * gtod. It is stored as ASCII with '0x' * appended. */ if (handle->flags & TRACECMD_FL_IGNORE_DATE) break; offset = strtoll(buf, NULL, 0); /* Convert from micro to nano */ offset *= 1000; handle->ts_offset += offset; break; case TRACECMD_OPTION_OFFSET: /* * Similar to date option, but just adds an * offset to the timestamp. */ if (handle->flags & TRACECMD_FL_IGNORE_DATE) break; offset = strtoll(buf, NULL, 0); handle->ts_offset += offset; break; case TRACECMD_OPTION_CPUSTAT: buf[size-1] = '\n'; cpustats = realloc(cpustats, cpustats_size + size + 1); if (!cpustats) return -ENOMEM; memcpy(cpustats + cpustats_size, buf, size); cpustats_size += size; cpustats[cpustats_size] = 0; break; case TRACECMD_OPTION_BUFFER: /* A buffer instance is saved at the end of the file */ handle->nr_buffers++; handle->buffers = realloc(handle->buffers, sizeof(*handle->buffers) * handle->nr_buffers); if (!handle->buffers) return -ENOMEM; buffer = &handle->buffers[handle->nr_buffers - 1]; buffer->name = strdup(buf + 8); if (!buffer->name) { free(handle->buffers); handle->buffers = NULL; return -ENOMEM; } offset = *(unsigned long long *)buf; buffer->offset = tep_read_number(handle->pevent, &offset, 8); break; case TRACECMD_OPTION_TRACECLOCK: if (!handle->ts2secs) handle->use_trace_clock = true; break; case TRACECMD_OPTION_UNAME: handle->uname = strdup(buf); break; case TRACECMD_OPTION_VERSION: handle->version = strdup(buf); break; case TRACECMD_OPTION_HOOK: hook = tracecmd_create_event_hook(buf); hook->next = handle->hooks; handle->hooks = hook; break; case TRACECMD_OPTION_CPUCOUNT: cpus = *(int *)buf; handle->cpus = tep_read_number(handle->pevent, &cpus, 4); break; default: warning("unknown option %d", option); break; } free(buf); } handle->cpustats = cpustats; return 0; } static int read_cpu_data(struct tracecmd_input *handle) { struct tep_handle *pevent = handle->pevent; enum kbuffer_long_size long_size; enum kbuffer_endian endian; unsigned long long size; unsigned long long max_size = 0; unsigned long long pages; char buf[10]; int cpus; int cpu; if (do_read_check(handle, buf, 10)) return -1; cpus = handle->cpus; /* check if this handles options */ if (strncmp(buf, "options", 7) == 0) { if (handle_options(handle) < 0) return -1; if (do_read_check(handle, buf, 10)) return -1; } /* * Check if this is a latency report or not. */ if (strncmp(buf, "latency", 7) == 0) { handle->flags |= TRACECMD_FL_LATENCY; return 1; } /* We expect this to be flyrecord */ if (strncmp(buf, "flyrecord", 9) != 0) return -1; handle->cpu_data = malloc(sizeof(*handle->cpu_data) * handle->cpus); if (!handle->cpu_data) return -1; memset(handle->cpu_data, 0, sizeof(*handle->cpu_data) * handle->cpus); if (force_read) handle->read_page = true; if (handle->long_size == 8) long_size = KBUFFER_LSIZE_8; else long_size = KBUFFER_LSIZE_4; if (tep_is_file_bigendian(handle->pevent)) endian = KBUFFER_ENDIAN_BIG; else endian = KBUFFER_ENDIAN_LITTLE; for (cpu = 0; cpu < handle->cpus; cpu++) { unsigned long long offset; handle->cpu_data[cpu].cpu = cpu; handle->cpu_data[cpu].kbuf = kbuffer_alloc(long_size, endian); if (!handle->cpu_data[cpu].kbuf) goto out_free; if (tep_is_old_format(pevent)) kbuffer_set_old_format(handle->cpu_data[cpu].kbuf); read8(handle, &offset); read8(handle, &size); handle->cpu_data[cpu].file_offset = offset; handle->cpu_data[cpu].file_size = size; if (size > max_size) max_size = size; if (size && (offset + size > handle->total_file_size)) { /* this happens if the file got truncated */ printf("File possibly truncated. " "Need at least %llu, but file size is %zu.\n", offset + size, handle->total_file_size); errno = EINVAL; goto out_free; } } /* Calculate about a meg of pages for buffering */ pages = handle->page_size ? max_size / handle->page_size : 0; if (!pages) pages = 1; pages = normalize_size(pages); handle->page_map_size = handle->page_size * pages; if (handle->page_map_size < handle->page_size) handle->page_map_size = handle->page_size; for (cpu = 0; cpu < handle->cpus; cpu++) { if (init_cpu(handle, cpu)) goto out_free; } /* * It is possible that an option changed the number of CPUs. * If that happened, then there's "empty" cpu data saved for * backward compatibility. */ if (cpus < handle->cpus) { unsigned long long ignore; int once = 0; read8(handle, &ignore); /* offset */ read8(handle, &ignore); /* size */ if (ignore != 0) { if (!once) { warning("ignored CPU data not zero size"); once++; } } } return 0; out_free: for ( ; cpu >= 0; cpu--) { free_page(handle, cpu); kbuffer_free(handle->cpu_data[cpu].kbuf); handle->cpu_data[cpu].kbuf = NULL; } return -1; } static int read_data_and_size(struct tracecmd_input *handle, char **data, unsigned long long *size) { if (read8(handle, size) < 0) return -1; *data = malloc(*size + 1); if (!*data) return -1; if (do_read_check(handle, *data, *size)) { free(*data); return -1; } return 0; } static int read_and_parse_cmdlines(struct tracecmd_input *handle) { struct tep_handle *pevent = handle->pevent; unsigned long long size; char *cmdlines; if (read_data_and_size(handle, &cmdlines, &size) < 0) return -1; cmdlines[size] = 0; tracecmd_parse_cmdlines(pevent, cmdlines, size); free(cmdlines); return 0; } static int read_and_parse_trace_clock(struct tracecmd_input *handle, struct tep_handle *pevent) { unsigned long long size; char *trace_clock; if (read_data_and_size(handle, &trace_clock, &size) < 0) return -1; trace_clock[size] = 0; tracecmd_parse_trace_clock(pevent, trace_clock, size); free(trace_clock); return 0; } /** * tracecmd_init_data - prepare reading the data from trace.dat * @handle: input handle for the trace.dat file * * This prepares reading the data from trace.dat. This is called * after tracecmd_read_headers() and before tracecmd_read_data(). */ int tracecmd_init_data(struct tracecmd_input *handle) { struct tep_handle *pevent = handle->pevent; unsigned int cpus; int ret; if (read4(handle, &cpus) < 0) return -1; handle->cpus = cpus; tep_set_cpus(pevent, handle->cpus); ret = read_cpu_data(handle); if (ret < 0) return ret; if (handle->use_trace_clock) { /* * There was a bug in the original setting of * the trace_clock file which let it get * corrupted. If it fails to read, force local * clock. */ if (read_and_parse_trace_clock(handle, pevent) < 0) { char clock[] = "[local]"; warning("File has trace_clock bug, using local clock"); tracecmd_parse_trace_clock(pevent, clock, 8); } } tracecmd_blk_hack(handle); return ret; } /** * tracecmd_make_pipe - Have the handle read a pipe instead of a file * @handle: input handle to read from a pipe * @cpu: the cpu that the pipe represents * @fd: the read end of the pipe * @cpus: the total number of cpus for this handle * * In order to stream data from the binary trace files and produce * output or analyze the data, a tracecmd_input descriptor needs to * be created, and then converted into a form that can act on a * pipe. * * Note, there are limitations to what this descriptor can do. * Most notibly, it can not read backwards. Once a page is read * it can not be read at a later time (except if a record is attached * to it and is holding the page ref). * * It is expected that the handle has already been created and * tracecmd_read_headers() has run on it. */ int tracecmd_make_pipe(struct tracecmd_input *handle, int cpu, int fd, int cpus) { enum kbuffer_long_size long_size; enum kbuffer_endian endian; handle->read_page = true; handle->use_pipe = true; if (!handle->cpus) { handle->cpus = cpus; handle->cpu_data = malloc(sizeof(*handle->cpu_data) * handle->cpus); if (!handle->cpu_data) return -1; } if (cpu >= handle->cpus) return -1; if (handle->long_size == 8) long_size = KBUFFER_LSIZE_8; else long_size = KBUFFER_LSIZE_4; if (tep_is_file_bigendian(handle->pevent)) endian = KBUFFER_ENDIAN_BIG; else endian = KBUFFER_ENDIAN_LITTLE; memset(&handle->cpu_data[cpu], 0, sizeof(handle->cpu_data[cpu])); handle->cpu_data[cpu].pipe_fd = fd; handle->cpu_data[cpu].cpu = cpu; handle->cpu_data[cpu].kbuf = kbuffer_alloc(long_size, endian); if (!handle->cpu_data[cpu].kbuf) return -1; if (tep_is_old_format(handle->pevent)) kbuffer_set_old_format(handle->cpu_data[cpu].kbuf); handle->cpu_data[cpu].file_offset = 0; handle->cpu_data[cpu].file_size = -1; init_cpu(handle, cpu); return 0; } /** * tracecmd_print_events - print the events that are stored in trace.dat * @handle: input handle for the trace.dat file * @regex: regex of events to print (NULL is all events) * * This is a debugging routine to print out the events that * are stored in a given trace.dat file. */ void tracecmd_print_events(struct tracecmd_input *handle, const char *regex) { int ret; if (!regex) regex = ".*"; if (!handle->ftrace_files_start) { lseek64(handle->fd, handle->header_files_start, SEEK_SET); read_header_files(handle); } ret = read_ftrace_files(handle, regex); if (ret < 0) return; read_event_files(handle, regex); return; } /* Show the cpu data stats */ static void show_cpu_stats(struct tracecmd_input *handle) { struct cpu_data *cpu_data; int i; for (i = 0; i < handle->cpus; i++) { cpu_data = &handle->cpu_data[i]; printf("CPU%d data recorded at offset=0x%llx\n", i, cpu_data->file_offset); printf(" %lld bytes in size\n", cpu_data->file_size); } } /** * tracecmd_print_stats - prints the stats recorded in the options. * @handle: input handle for the trace.dat file * * Looks for the option TRACECMD_OPTION_CPUSTAT and prints out what's * stored there, if it is found. Otherwise it prints that none were found. */ void tracecmd_print_stats(struct tracecmd_input *handle) { if (handle->cpustats) printf("%s\n", handle->cpustats); else printf(" No stats in this file\n"); show_cpu_stats(handle); } /** * tracecmd_print_uname - prints the recorded uname if it was recorded * @handle: input handle for the trace.dat file * * Looks for the option TRACECMD_OPTION_UNAME and prints out what's * stored there, if it is found. Otherwise it prints that none were found. */ void tracecmd_print_uname(struct tracecmd_input *handle) { if (handle->uname) printf("%s\n", handle->uname); else printf(" uname was not recorded in this file\n"); } /** * tracecmd_print_uname - prints the recorded uname if it was recorded * @handle: input handle for the trace.dat file * * Looks for the option TRACECMD_OPTION_VERSION and prints out what's * stored there, if it is found. Otherwise it prints that none were found. */ void tracecmd_print_version(struct tracecmd_input *handle) { if (handle->version) printf("%s\n", handle->version); else printf(" version was not recorded in this file\n"); } /** * tracecmd_hooks - return the event hooks that were used in record * @handle: input handle for the trace.dat file * * If trace-cmd record used -H to save hooks, they are parsed and * presented as hooks here. * * Returns the hook list (do not free it, they are freed on close) */ struct hook_list *tracecmd_hooks(struct tracecmd_input *handle) { return handle->hooks; } /** * tracecmd_alloc_fd - create a tracecmd_input handle from a file descriptor * @fd: the file descriptor for the trace.dat file * * Allocate a tracecmd_input handle from a file descriptor and open the * file. This tests if the file is of trace-cmd format and allocates * a parse event descriptor. * * The returned pointer is not ready to be read yet. A tracecmd_read_headers() * and tracecmd_init_data() still need to be called on the descriptor. * * Unless you know what you are doing with this, you want to use * tracecmd_open_fd() instead. */ struct tracecmd_input *tracecmd_alloc_fd(int fd) { struct tracecmd_input *handle; char test[] = { 23, 8, 68 }; unsigned int page_size; char *version; char buf[BUFSIZ]; handle = malloc(sizeof(*handle)); if (!handle) return NULL; memset(handle, 0, sizeof(*handle)); handle->fd = fd; handle->ref = 1; if (do_read_check(handle, buf, 3)) goto failed_read; if (memcmp(buf, test, 3) != 0) goto failed_read; if (do_read_check(handle, buf, 7)) goto failed_read; if (memcmp(buf, "tracing", 7) != 0) goto failed_read; version = read_string(handle); if (!version) goto failed_read; pr_stat("version = %s\n", version); free(version); if (do_read_check(handle, buf, 1)) goto failed_read; handle->pevent = tep_alloc(); if (!handle->pevent) goto failed_read; /* register default ftrace functions first */ tracecmd_ftrace_overrides(handle, &handle->finfo); handle->plugin_list = tracecmd_load_plugins(handle->pevent); tep_set_file_bigendian(handle->pevent, buf[0]); tep_set_local_bigendian(handle->pevent, tracecmd_host_bigendian()); do_read_check(handle, buf, 1); handle->long_size = buf[0]; read4(handle, &page_size); handle->page_size = page_size; handle->header_files_start = lseek64(handle->fd, 0, SEEK_CUR); handle->total_file_size = lseek64(handle->fd, 0, SEEK_END); handle->header_files_start = lseek64(handle->fd, handle->header_files_start, SEEK_SET); return handle; failed_read: free(handle); return NULL; } /** * tracecmd_alloc_fd - create a tracecmd_input handle from a file name * @file: the file name of the file that is of tracecmd data type. * * Allocate a tracecmd_input handle from a given file name and open the * file. This tests if the file is of trace-cmd format and allocates * a parse event descriptor. * * The returned pointer is not ready to be read yet. A tracecmd_read_headers() * and tracecmd_init_data() still need to be called on the descriptor. * * Unless you know what you are doing with this, you want to use * tracecmd_open() instead. */ struct tracecmd_input *tracecmd_alloc(const char *file) { int fd; fd = open(file, O_RDONLY); if (fd < 0) return NULL; return tracecmd_alloc_fd(fd); } /** * tracecmd_open_fd - create a tracecmd_handle from the trace.dat file descriptor * @fd: the file descriptor for the trace.dat file */ struct tracecmd_input *tracecmd_open_fd(int fd) { struct tracecmd_input *handle; int ret; handle = tracecmd_alloc_fd(fd); if (!handle) return NULL; if (tracecmd_read_headers(handle) < 0) goto fail; if ((ret = tracecmd_init_data(handle)) < 0) goto fail; return handle; fail: tracecmd_close(handle); return NULL; } /** * tracecmd_open - create a tracecmd_handle from a given file * @file: the file name of the file that is of tracecmd data type. */ struct tracecmd_input *tracecmd_open(const char *file) { int fd; fd = open(file, O_RDONLY); if (fd < 0) return NULL; return tracecmd_open_fd(fd); } /** * tracecmd_ref - add a reference to the handle * @handle: input handle for the trace.dat file * * Some applications may share a handle between parts of * the application. Let those parts add reference counters * to the handle, and the last one to close it will free it. */ void tracecmd_ref(struct tracecmd_input *handle) { if (!handle) return; handle->ref++; } /** * tracecmd_close - close and free the trace.dat handle * @handle: input handle for the trace.dat file * * Close the file descriptor of the handle and frees * the resources allocated by the handle. */ void tracecmd_close(struct tracecmd_input *handle) { int cpu; if (!handle) return; if (handle->ref <= 0) { warning("tracecmd: bad ref count on handle\n"); return; } if (--handle->ref) return; for (cpu = 0; cpu < handle->cpus; cpu++) { /* The tracecmd_peek_data may have cached a record */ free_next(handle, cpu); free_page(handle, cpu); if (handle->cpu_data && handle->cpu_data[cpu].kbuf) { kbuffer_free(handle->cpu_data[cpu].kbuf); if (handle->cpu_data[cpu].page_map) free_page_map(handle->cpu_data[cpu].page_map); if (handle->cpu_data[cpu].page_cnt) warning("%d pages still allocated on cpu %d%s", handle->cpu_data[cpu].page_cnt, cpu, show_records(handle->cpu_data[cpu].pages, handle->cpu_data[cpu].nr_pages)); free(handle->cpu_data[cpu].pages); } } free(handle->cpustats); free(handle->cpu_data); free(handle->uname); close(handle->fd); tracecmd_free_hooks(handle->hooks); handle->hooks = NULL; if (handle->flags & TRACECMD_FL_BUFFER_INSTANCE) tracecmd_close(handle->parent); else { /* Only main handle frees plugins and pevent */ tracecmd_unload_plugins(handle->plugin_list, handle->pevent); tep_free(handle->pevent); } free(handle); } static int read_copy_size8(struct tracecmd_input *handle, int fd, unsigned long long *size) { /* read size */ if (do_read_check(handle, size, 8)) return -1; if (__do_write_check(fd, size, 8)) return -1; *size = tep_read_number(handle->pevent, size, 8); return 0; } static int read_copy_size4(struct tracecmd_input *handle, int fd, unsigned int *size) { /* read size */ if (do_read_check(handle, size, 4)) return -1; if (__do_write_check(fd, size, 4)) return -1; *size = tep_read_number(handle->pevent, size, 4); return 0; } static int read_copy_data(struct tracecmd_input *handle, unsigned long long size, int fd) { char *buf; buf = malloc(size); if (!buf) return -1; if (do_read_check(handle, buf, size)) goto failed_read; if (__do_write_check(fd, buf, size)) goto failed_read; free(buf); return 0; failed_read: free(buf); return -1; } static int copy_header_files(struct tracecmd_input *handle, int fd) { unsigned long long size; lseek64(handle->fd, handle->header_files_start, SEEK_SET); /* "header_page" */ if (read_copy_data(handle, 12, fd) < 0) return -1; if (read_copy_size8(handle, fd, &size) < 0) return -1; if (read_copy_data(handle, size, fd) < 0) return -1; /* "header_event" */ if (read_copy_data(handle, 13, fd) < 0) return -1; if (read_copy_size8(handle, fd, &size) < 0) return -1; if (read_copy_data(handle, size, fd) < 0) return -1; return 0; } static int copy_ftrace_files(struct tracecmd_input *handle, int fd) { unsigned long long size; unsigned int count; unsigned int i; if (read_copy_size4(handle, fd, &count) < 0) return -1; for (i = 0; i < count; i++) { if (read_copy_size8(handle, fd, &size) < 0) return -1; if (read_copy_data(handle, size, fd) < 0) return -1; } return 0; } static int copy_event_files(struct tracecmd_input *handle, int fd) { unsigned long long size; char *system; unsigned int systems; unsigned int count; unsigned int i,x; if (read_copy_size4(handle, fd, &systems) < 0) return -1; for (i = 0; i < systems; i++) { system = read_string(handle); if (!system) return -1; if (__do_write_check(fd, system, strlen(system) + 1)) { free(system); return -1; } free(system); if (read_copy_size4(handle, fd, &count) < 0) return -1; for (x=0; x < count; x++) { if (read_copy_size8(handle, fd, &size) < 0) return -1; if (read_copy_data(handle, size, fd) < 0) return -1; } } return 0; } static int copy_proc_kallsyms(struct tracecmd_input *handle, int fd) { unsigned int size; if (read_copy_size4(handle, fd, &size) < 0) return -1; if (!size) return 0; /* OK? */ if (read_copy_data(handle, size, fd) < 0) return -1; return 0; } static int copy_ftrace_printk(struct tracecmd_input *handle, int fd) { unsigned int size; if (read_copy_size4(handle, fd, &size) < 0) return -1; if (!size) return 0; /* OK? */ if (read_copy_data(handle, size, fd) < 0) return -1; return 0; } static int copy_command_lines(struct tracecmd_input *handle, int fd) { unsigned long long size; if (read_copy_size8(handle, fd, &size) < 0) return -1; if (!size) return 0; /* OK? */ if (read_copy_data(handle, size, fd) < 0) return -1; return 0; } int tracecmd_copy_headers(struct tracecmd_input *handle, int fd) { int ret; ret = copy_header_files(handle, fd); if (ret < 0) return -1; ret = copy_ftrace_files(handle, fd); if (ret < 0) return -1; ret = copy_event_files(handle, fd); if (ret < 0) return -1; ret = copy_proc_kallsyms(handle, fd); if (ret < 0) return -1; ret = copy_ftrace_printk(handle, fd); if (ret < 0) return -1; ret = copy_command_lines(handle, fd); if (ret < 0) return -1; return 0; } /** * tracecmd_record_at_buffer_start - return true if record is first on subbuffer * @handle: input handle for the trace.dat file * @record: The record to test if it is the first record on page * * Returns true if the record is the first record on the page. */ int tracecmd_record_at_buffer_start(struct tracecmd_input *handle, struct tep_record *record) { struct page *page = record->priv; struct kbuffer *kbuf = handle->cpu_data[record->cpu].kbuf; int offset; if (!page || !kbuf) return 0; offset = record->offset - page->offset; return offset == kbuffer_start_of_data(kbuf); } unsigned long long tracecmd_page_ts(struct tracecmd_input *handle, struct tep_record *record) { struct page *page = record->priv; struct kbuffer *kbuf = handle->cpu_data[record->cpu].kbuf; if (!page || !kbuf) return 0; return kbuffer_subbuf_timestamp(kbuf, page->map); } unsigned int tracecmd_record_ts_delta(struct tracecmd_input *handle, struct tep_record *record) { struct kbuffer *kbuf = handle->cpu_data[record->cpu].kbuf; struct page *page = record->priv; int offset; if (!page || !kbuf) return 0; offset = record->offset - page->offset; return kbuffer_ptr_delta(kbuf, page->map + offset); } struct kbuffer *tracecmd_record_kbuf(struct tracecmd_input *handle, struct tep_record *record) { return handle->cpu_data[record->cpu].kbuf; } void *tracecmd_record_page(struct tracecmd_input *handle, struct tep_record *record) { struct page *page = record->priv; return page ? page->map : NULL; } void *tracecmd_record_offset(struct tracecmd_input *handle, struct tep_record *record) { struct page *page = record->priv; int offset; if (!page) return NULL; offset = record->offset - page->offset; return page->map + offset; } int tracecmd_buffer_instances(struct tracecmd_input *handle) { return handle->nr_buffers; } const char *tracecmd_buffer_instance_name(struct tracecmd_input *handle, int indx) { if (indx >= handle->nr_buffers) return NULL; return handle->buffers[indx].name; } struct tracecmd_input * tracecmd_buffer_instance_handle(struct tracecmd_input *handle, int indx) { struct tracecmd_input *new_handle; struct input_buffer_instance *buffer = &handle->buffers[indx]; size_t offset; ssize_t ret; if (indx >= handle->nr_buffers) return NULL; /* * We make a copy of the current handle, but we substitute * the cpu data with the cpu data for this buffer. */ new_handle = malloc(sizeof(*handle)); if (!new_handle) return NULL; *new_handle = *handle; new_handle->cpu_data = NULL; new_handle->nr_buffers = 0; new_handle->buffers = NULL; new_handle->ref = 1; new_handle->parent = handle; new_handle->cpustats = NULL; new_handle->hooks = NULL; if (handle->uname) /* Ignore if fails to malloc, no biggy */ new_handle->uname = strdup(handle->uname); tracecmd_ref(handle); new_handle->fd = dup(handle->fd); new_handle->flags |= TRACECMD_FL_BUFFER_INSTANCE; /* Save where we currently are */ offset = lseek64(handle->fd, 0, SEEK_CUR); ret = lseek64(handle->fd, buffer->offset, SEEK_SET); if (ret < 0) { warning("could not seek to buffer %s offset %ld\n", buffer->name, buffer->offset); tracecmd_close(new_handle); return NULL; } ret = read_cpu_data(new_handle); if (ret < 0) { warning("failed to read sub buffer %s\n", buffer->name); tracecmd_close(new_handle); return NULL; } ret = lseek64(handle->fd, offset, SEEK_SET); if (ret < 0) { warning("could not seek to back to offset %ld\n", offset); tracecmd_close(new_handle); return NULL; } return new_handle; } int tracecmd_is_buffer_instance(struct tracecmd_input *handle) { return handle->flags & TRACECMD_FL_BUFFER_INSTANCE; } /** * tracecmd_long_size - return the size of "long" for the arch * @handle: input handle for the trace.dat file */ int tracecmd_long_size(struct tracecmd_input *handle) { return handle->long_size; } /** * tracecmd_page_size - return the PAGE_SIZE for the arch * @handle: input handle for the trace.dat file */ int tracecmd_page_size(struct tracecmd_input *handle) { return handle->page_size; } /** * tracecmd_page_size - return the number of CPUs recorded * @handle: input handle for the trace.dat file */ int tracecmd_cpus(struct tracecmd_input *handle) { return handle->cpus; } /** * tracecmd_get_pevent - return the pevent handle * @handle: input handle for the trace.dat file */ struct tep_handle *tracecmd_get_pevent(struct tracecmd_input *handle) { return handle->pevent; } /** * tracecmd_get_use_trace_clock - return use_trace_clock * @handle: input handle for the trace.dat file */ bool tracecmd_get_use_trace_clock(struct tracecmd_input *handle) { return handle->use_trace_clock; } /** * tracecmd_get_show_data_func - return the show data func * @handle: input handle for the trace.dat file */ tracecmd_show_data_func tracecmd_get_show_data_func(struct tracecmd_input *handle) { return handle->show_data_func; } /** * tracecmd_set_show_data_func - set the show data func * @handle: input handle for the trace.dat file */ void tracecmd_set_show_data_func(struct tracecmd_input *handle, tracecmd_show_data_func func) { handle->show_data_func = func; } trace-cmd-2.8.3/lib/trace-cmd/trace-recorder.c000066400000000000000000000243351351617527000210530ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt * */ #define _LARGEFILE64_SOURCE #include #include #include #include #include #include #include "trace-cmd.h" #include "event-utils.h" /* F_GETPIPE_SZ was introduced in 2.6.35, older systems don't have it */ #ifndef F_GETPIPE_SZ # define F_GETPIPE_SZ 1032 /* The Linux number for the option */ #endif #ifndef SPLICE_F_MOVE # define SPLICE_F_MOVE 1 # define SPLICE_F_NONBLOCK 2 # define SPLICE_F_MORE 4 # define SPLICE_F_GIFT 8 #endif struct tracecmd_recorder { int fd; int fd1; int fd2; int trace_fd; int brass[2]; int pipe_size; int page_size; int cpu; int stop; int max; int pages; int count; unsigned fd_flags; unsigned flags; }; static int append_file(int size, int dst, int src) { char buf[size]; int r; lseek64(src, 0, SEEK_SET); /* If there's an error, then we are pretty much screwed :-p */ do { r = read(src, buf, size); if (r < 0) return r; r = write(dst, buf, r); if (r < 0) return r; } while (r); return 0; } void tracecmd_free_recorder(struct tracecmd_recorder *recorder) { if (!recorder) return; if (recorder->max) { /* Need to put everything into fd1 */ if (recorder->fd == recorder->fd1) { int ret; /* * Crap, the older data is in fd2, and we need * to append fd1 onto it, and then copy over to fd1 */ ret = append_file(recorder->page_size, recorder->fd2, recorder->fd1); /* Error on copying, then just keep fd1 */ if (ret) { lseek64(recorder->fd1, 0, SEEK_END); goto close; } lseek64(recorder->fd1, 0, SEEK_SET); ftruncate(recorder->fd1, 0); } append_file(recorder->page_size, recorder->fd1, recorder->fd2); } close: if (recorder->brass[0] >= 0) close(recorder->brass[0]); if (recorder->brass[1] >= 0) close(recorder->brass[1]); if (recorder->trace_fd >= 0) close(recorder->trace_fd); if (recorder->fd1 >= 0) close(recorder->fd1); if (recorder->fd2 >= 0) close(recorder->fd2); free(recorder); } struct tracecmd_recorder * tracecmd_create_buffer_recorder_fd2(int fd, int fd2, int cpu, unsigned flags, const char *buffer, int maxkb) { struct tracecmd_recorder *recorder; char *path = NULL; int pipe_size = 0; int ret; recorder = malloc(sizeof(*recorder)); if (!recorder) return NULL; recorder->cpu = cpu; recorder->flags = flags; recorder->fd_flags = SPLICE_F_MOVE; if (!(recorder->flags & TRACECMD_RECORD_BLOCK)) recorder->fd_flags |= SPLICE_F_NONBLOCK; /* Init to know what to free and release */ recorder->trace_fd = -1; recorder->brass[0] = -1; recorder->brass[1] = -1; recorder->page_size = getpagesize(); if (maxkb) { int kb_per_page = recorder->page_size >> 10; if (!kb_per_page) kb_per_page = 1; recorder->max = maxkb / kb_per_page; /* keep max half */ recorder->max >>= 1; if (!recorder->max) recorder->max = 1; } else recorder->max = 0; recorder->count = 0; recorder->pages = 0; /* fd always points to what to write to */ recorder->fd = fd; recorder->fd1 = fd; recorder->fd2 = fd2; if (flags & TRACECMD_RECORD_SNAPSHOT) ret = asprintf(&path, "%s/per_cpu/cpu%d/snapshot_raw", buffer, cpu); else ret = asprintf(&path, "%s/per_cpu/cpu%d/trace_pipe_raw", buffer, cpu); if (ret < 0) goto out_free; recorder->trace_fd = open(path, O_RDONLY); if (recorder->trace_fd < 0) goto out_free; if ((recorder->flags & TRACECMD_RECORD_NOSPLICE) == 0) { ret = pipe(recorder->brass); if (ret < 0) goto out_free; ret = fcntl(recorder->brass[0], F_GETPIPE_SZ, &pipe_size); /* * F_GETPIPE_SZ was introduced in 2.6.35, ftrace was introduced * in 2.6.31. If we are running on an older kernel, just fall * back to using page_size for splice(). It could also return * success, but not modify pipe_size. */ if (ret < 0 || !pipe_size) pipe_size = recorder->page_size; recorder->pipe_size = pipe_size; } free(path); return recorder; out_free: free(path); tracecmd_free_recorder(recorder); return NULL; } struct tracecmd_recorder * tracecmd_create_buffer_recorder_fd(int fd, int cpu, unsigned flags, const char *buffer) { return tracecmd_create_buffer_recorder_fd2(fd, -1, cpu, flags, buffer, 0); } struct tracecmd_recorder * tracecmd_create_buffer_recorder(const char *file, int cpu, unsigned flags, const char *buffer) { struct tracecmd_recorder *recorder; int fd; fd = open(file, O_WRONLY | O_CREAT | O_TRUNC | O_LARGEFILE, 0644); if (fd < 0) return NULL; recorder = tracecmd_create_buffer_recorder_fd(fd, cpu, flags, buffer); if (!recorder) { close(fd); unlink(file); } return recorder; } struct tracecmd_recorder * tracecmd_create_buffer_recorder_maxkb(const char *file, int cpu, unsigned flags, const char *buffer, int maxkb) { struct tracecmd_recorder *recorder = NULL; char *file2; int len; int fd; int fd2; if (!maxkb) return tracecmd_create_buffer_recorder(file, cpu, flags, buffer); len = strlen(file); file2 = malloc(len + 3); if (!file2) return NULL; sprintf(file2, "%s.1", file); fd = open(file, O_RDWR | O_CREAT | O_TRUNC | O_LARGEFILE, 0644); if (fd < 0) goto out; fd2 = open(file2, O_RDWR | O_CREAT | O_TRUNC | O_LARGEFILE, 0644); if (fd < 0) goto err; recorder = tracecmd_create_buffer_recorder_fd2(fd, fd2, cpu, flags, buffer, maxkb); if (!recorder) goto err2; out: /* Unlink file2, we need to add everything to file at the end */ unlink(file2); free(file2); return recorder; err2: close(fd2); err: close(fd); unlink(file); goto out; } struct tracecmd_recorder *tracecmd_create_recorder_fd(int fd, int cpu, unsigned flags) { const char *tracing; tracing = tracecmd_get_tracing_dir(); if (!tracing) { errno = ENODEV; return NULL; } return tracecmd_create_buffer_recorder_fd(fd, cpu, flags, tracing); } struct tracecmd_recorder *tracecmd_create_recorder(const char *file, int cpu, unsigned flags) { const char *tracing; tracing = tracecmd_get_tracing_dir(); if (!tracing) { errno = ENODEV; return NULL; } return tracecmd_create_buffer_recorder(file, cpu, flags, tracing); } struct tracecmd_recorder * tracecmd_create_recorder_maxkb(const char *file, int cpu, unsigned flags, int maxkb) { const char *tracing; tracing = tracecmd_get_tracing_dir(); if (!tracing) { errno = ENODEV; return NULL; } return tracecmd_create_buffer_recorder_maxkb(file, cpu, flags, tracing, maxkb); } static inline void update_fd(struct tracecmd_recorder *recorder, int size) { int fd; if (!recorder->max) return; recorder->count += size; if (recorder->count >= recorder->page_size) { recorder->count = 0; recorder->pages++; } if (recorder->pages < recorder->max) return; recorder->pages = 0; fd = recorder->fd; /* Swap fd to next file. */ if (fd == recorder->fd1) fd = recorder->fd2; else fd = recorder->fd1; /* Zero out the new file we are writing to */ lseek64(fd, 0, SEEK_SET); ftruncate(fd, 0); recorder->fd = fd; } /* * Returns -1 on error. * or bytes of data read. */ static long splice_data(struct tracecmd_recorder *recorder) { long total_read = 0; long read; long ret; read = splice(recorder->trace_fd, NULL, recorder->brass[1], NULL, recorder->pipe_size, SPLICE_F_MOVE); if (read < 0) { if (errno != EAGAIN && errno != EINTR) { warning("recorder error in splice input"); return -1; } return 0; } else if (read == 0) return 0; again: ret = splice(recorder->brass[0], NULL, recorder->fd, NULL, read, recorder->fd_flags); if (ret < 0) { if (errno != EAGAIN && errno != EINTR) { warning("recorder error in splice output"); return -1; } return total_read; } else update_fd(recorder, ret); total_read = ret; read -= ret; if (read) goto again; return total_read; } /* * Returns -1 on error. * or bytes of data read. */ static long read_data(struct tracecmd_recorder *recorder) { char buf[recorder->page_size]; long left; long r, w; r = read(recorder->trace_fd, buf, recorder->page_size); if (r < 0) { if (errno != EAGAIN && errno != EINTR) { warning("recorder error in read output"); return -1; } return 0; } left = r; do { w = write(recorder->fd, buf + (r - left), left); if (w > 0) { left -= w; update_fd(recorder, w); } } while (w >= 0 && left); if (w < 0) r = w; return r; } static void set_nonblock(struct tracecmd_recorder *recorder) { long flags; /* Do not block on reads for flushing */ flags = fcntl(recorder->trace_fd, F_GETFL); fcntl(recorder->trace_fd, F_SETFL, flags | O_NONBLOCK); /* Do not block on streams for write */ recorder->fd_flags |= SPLICE_F_NONBLOCK; } long tracecmd_flush_recording(struct tracecmd_recorder *recorder) { char buf[recorder->page_size]; long total = 0; long wrote = 0; long ret; set_nonblock(recorder); do { if (recorder->flags & TRACECMD_RECORD_NOSPLICE) ret = read_data(recorder); else ret = splice_data(recorder); if (ret < 0) return ret; total += ret; } while (ret); /* splice only reads full pages */ do { ret = read(recorder->trace_fd, buf, recorder->page_size); if (ret > 0) { write(recorder->fd, buf, ret); wrote += ret; } } while (ret > 0); /* Make sure we finish off with a page size boundary */ wrote &= recorder->page_size - 1; if (wrote) { memset(buf, 0, recorder->page_size); write(recorder->fd, buf, recorder->page_size - wrote); total += recorder->page_size; } return total; } int tracecmd_start_recording(struct tracecmd_recorder *recorder, unsigned long sleep) { struct timespec req = { .tv_sec = sleep / 1000000, .tv_nsec = (sleep % 1000000) * 1000, }; long read = 1; long ret; recorder->stop = 0; do { /* Only sleep if we did not read anything last time */ if (!read && sleep) nanosleep(&req, NULL); read = 0; do { if (recorder->flags & TRACECMD_RECORD_NOSPLICE) ret = read_data(recorder); else ret = splice_data(recorder); if (ret < 0) return ret; read += ret; } while (ret); } while (!recorder->stop); /* Flush out the rest */ ret = tracecmd_flush_recording(recorder); if (ret < 0) return ret; return 0; } void tracecmd_stop_recording(struct tracecmd_recorder *recorder) { if (!recorder) return; set_nonblock(recorder); recorder->stop = 1; } trace-cmd-2.8.3/lib/trace-cmd/trace-util.c000066400000000000000000001026461351617527000202250ustar00rootroot00000000000000// SPDX-License-Identifier: LGPL-2.1 /* * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "trace-cmd.h" #include "event-utils.h" #define LOCAL_PLUGIN_DIR ".trace-cmd/plugins" #define TRACEFS_PATH "/sys/kernel/tracing" #define DEBUGFS_PATH "/sys/kernel/debug" int tracecmd_disable_sys_plugins; int tracecmd_disable_plugins; static struct registered_plugin_options { struct registered_plugin_options *next; struct tep_plugin_option *options; } *registered_options; static struct trace_plugin_options { struct trace_plugin_options *next; char *plugin; char *option; char *value; } *trace_plugin_options; #define _STR(x) #x #define STR(x) _STR(x) struct tep_plugin_list { struct tep_plugin_list *next; char *name; void *handle; }; /** * trace_util_list_plugin_options - get list of plugin options * * Returns an array of char strings that list the currently registered * plugin options in the format of :