kernel/tools/perf/util/trace-event.h, branch linux-3.11.y

perf tools: Get rid of write_or_die() from trace-event-info.c

2013-03-21T16:15:42Z

Check return value of write and fail if error. Signed-off-by: Namhyung Kim Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1363850332-25297-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Remove unused tracing functions

2013-03-15T16:06:07Z

Leftovers from before libtraceevent integration. Signed-off-by: David Ahern Link: http://lkml.kernel.org/r/1363151248-16674-3-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Support for DWARF CFI unwinding on post processing

2012-08-11T18:06:56Z

This brings the support for DWARF cfi unwinding on perf post processing. Call frame informations are retrieved and then passed to libunwind that requests memory and register content from the applications. Adding unwind object to handle the user stack backtrace based on the user register values and user stack dump. The unwind object access the libunwind via remote interface and provides to it all the necessary data to unwind the stack. The unwind interface provides following function: unwind__get_entries And callback (specified in above function) to retrieve the backtrace entries: typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg); Signed-off-by: Jiri Olsa Original-patch-by: Frederic Weisbecker Cc: "Frank Ch. Eigler" Cc: Arun Sharma Cc: Benjamin Redelings Cc: Corey Ashford Cc: Cyrill Gorcunov Cc: Frank Ch. Eigler Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Masami Hiramatsu Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Robert Richter Cc: Stephane Eranian Cc: Tom Zanussi Cc: Ulrich Drepper Link: http://lkml.kernel.org/r/1344345647-11536-12-git-send-email-jolsa@redhat.com [ Replaced use of perf_session by usage of perf_evsel ] Signed-off-by: Arnaldo Carvalho de Melo

perf script: Replace "struct thread" with "struct addr_location" as a parameter for "process_event()"

2012-08-08T15:46:40Z

Both perl and python script start processing events other than trace points, and it's useful to pass the resolved symbol and the dso info to the event handler in script for better analysis and statistics. Struct thread is already a member of struct addr_location, using addr_location will keep the thread info, while providing additional symbol and dso info if exist, so that the script itself doesn't need to bother to do the symbol resolving and dso searching work. Tested-by: David Ahern Signed-off-by: Feng Tang Acked-by: David Ahern Cc: Andi Kleen Cc: David Ahern Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Robert Richter Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1344419875-21665-3-git-send-email-feng.tang@intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf script: Stop using pevent directly

2012-08-08T02:50:21Z

We can get all that is needed using just event_format, that is available via evsel->tp_format now. Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-2hsr1686epa9f0vx4yg7z2zj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf evsel: Cache associated event_format

2012-08-08T02:43:37Z

We already lookup the associated event_format when reading the perf.data header, so that we can cache the tracepoint name in evsel->name, so do it a little further and save the event_format itself, so that we can avoid relookups in tools that need to access it. Change the tools to take the most obvious advantage, when they were using pevent_find_event directly. More work is needed for further removing the need of a pointer to pevent, such as when asking for event field values ("common_pid" and the other common fields and per event_format fields). This is something that was planned but only got actually done when Andrey Wagin needed to do this lookup at perf_tool->sample() time, when we don't have access to pevent (session->pevent) to use with pevent_find_event(). Cc: Andrey Wagin Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Signed-off-by: Arnaldo Carvalho de Melo Link: http://lkml.kernel.org/n/tip-txkvew2ckko0b594ae8fbnyk@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Stop using a global trace events description list

2012-06-27T16:08:42Z

The pevent thing is per perf.data file, so I made it stop being static and become a perf_session member, so tools processing perf.data files use perf_session and _there_ we read the trace events description into session->pevent and then change everywhere to stop using that single global pevent variable and use the per session one. Note that it _doesn't_ fall backs to trace__event_id, as we're not interested at all in what is present in the /sys/kernel/debug/tracing/events in the workstation doing the analysis, just in what is in the perf.data file. This patch also introduces perf_session__set_tracepoints_handlers that is the perf perf.data/session way to associate handlers to tracepoint events by resolving their IDs using the events descriptions stored in a perf.data file. Make 'perf sched' use it. Reported-by: Dmitry Antipov Tested-by: Dmitry Antipov Cc: Frederic Weisbecker Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: linaro-dev@lists.linaro.org Cc: patches@linaro.org Link: http://lkml.kernel.org/r/20120625232016.GA28525@infradead.org Signed-off-by: Arnaldo Carvalho de Melo

parse-events: Rename struct record to struct pevent_record

2012-04-25T11:35:48Z

As libtraceevent will be a library, having struct record is far too generic of a name to use. Renaming it to be consistent with the rest of the functions will be a better long term solution. Signed-off-by: Steven Rostedt Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Steven Rostedt Cc: Borislav Petkov Cc: Jiri Olsa Cc: Arun Sharma Cc: Namhyung Kim Signed-off-by: Frederic Weisbecker

perf: Have perf use the new libtraceevent.a library

2012-04-25T11:28:48Z

The event parsing code in perf was originally copied from trace-cmd but never was kept up-to-date with the changes that was done there. The trace-cmd libtraceevent.a code is much more mature than what is currently in perf. This updates the code to use wrappers to handle the calls to the new event parsing code. The new code requires a handle to be pass around, which removes the global event variables and allows more than one event structure to be read from different files (and different machines). But perf still has the old global events and the code throughout perf does not yet have a nice way to pass around a handle. A global 'pevent' has been made for perf and the old calls have been created as wrappers to the new event parsing code that uses the global pevent. With this change, perf can later incorporate the pevent handle into the perf structures and allow more than one file to be read and compared, that contains different events. Signed-off-by: Steven Rostedt Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Steven Rostedt Cc: Borislav Petkov Cc: Jiri Olsa Cc: Arun Sharma Cc: Namhyung Kim Signed-off-by: Frederic Weisbecker

perf: Separate out trace-cmd parse-events from perf files

2012-04-25T10:28:18Z

Move the trace-event-parse.c code that originally came from trace-cmd into their own files. The new file will be called trace-parse-events.c, as the name of trace-cmd's file was parse-events.c too, but it conflicted with the parse-events.c file in perf that parses the command line. This tries to update the code with mimimal changes. Perf specific code stays in the trace-event-parse.[ch] files and the common parsing code is now in trace-parse-events.c and trace-parse-events.h. Signed-off-by: Steven Rostedt Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Steven Rostedt Cc: Borislav Petkov Cc: Jiri Olsa Cc: Arun Sharma Cc: Namhyung Kim Signed-off-by: Frederic Weisbecker