linux.git/tools/perf/util/scripting-engines/trace-event-python.c, branch v4.15

perf script python: Generate hooks with additional argument

2017-07-26T01:43:21+00:00

Modify the signature of tracepoint specific and trace_unhandled hooks to
add the perf_sample dict as a new argument.
Create a python helper function to print a dictionary.

Signed-off-by: Arun Kalyanasundaram 
Acked-by: Jiri Olsa 
Cc: Alexander Shishkin 
Cc: Daniel Borkmann 
Cc: David Carrillo-Cisneros 
Cc: David S. Miller 
Cc: Peter Zijlstra 
Cc: Seongjae Park 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/20170721220422.63962-6-arunkaly@google.com
Signed-off-by: Arnaldo Carvalho de Melo

perf script python: Add perf_sample dict to tracepoint handlers

2017-07-26T01:43:20+00:00

The process_event python hook receives a dict with all perf_sample
entries, but the tracepoint specific and trace_unhandled hooks predate
the introduction of this dict, and do not receive it.

Add the aforementioned dict as an additional argument to the affected
handlers. To keep backwards compatibility (and avoid unnecessary work),
do not pass the dict if the number of arguments signals that handler
version predates this change.

Signed-off-by: Arun Kalyanasundaram 
Acked-by: Jiri Olsa 
Cc: Alexander Shishkin 
Cc: Daniel Borkmann 
Cc: David Carrillo-Cisneros 
Cc: David S. Miller 
Cc: Peter Zijlstra 
Cc: Seongjae Park 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/20170721220422.63962-5-arunkaly@google.com
Signed-off-by: Arnaldo Carvalho de Melo

perf script python: Add sample_read to dict

2017-07-26T01:43:19+00:00

Provide time_enabled, time_running and counter value in the perf_sample
dict.

Signed-off-by: Arun Kalyanasundaram 
Acked-by: Jiri Olsa 
Cc: Alexander Shishkin 
Cc: Daniel Borkmann 
Cc: David Carrillo-Cisneros 
Cc: David S. Miller 
Cc: Peter Zijlstra 
Cc: Seongjae Park 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/20170721220422.63962-4-arunkaly@google.com
Signed-off-by: Arnaldo Carvalho de Melo

perf script python: Refactor creation of perf sample dict

2017-07-26T01:43:19+00:00

Move the creation of the dict containing perf_sample entries into a
helper function to enable its reuse in other sample processing routines.

Signed-off-by: Arun Kalyanasundaram 
Acked-by: Jiri Olsa 
Cc: Alexander Shishkin 
Cc: Daniel Borkmann 
Cc: David Carrillo-Cisneros 
Cc: David S. Miller 
Cc: Peter Zijlstra 
Cc: Seongjae Park 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/20170721220422.63962-3-arunkaly@google.com
Signed-off-by: Arnaldo Carvalho de Melo

perf script python: Allocate memory only if handler exists

2017-07-26T01:43:18+00:00

Avoid allocating memory if hook handler is not available. This saves
unused memory allocation and simplifies error path.

Let handler in python_process_tracepoint point to either tracepoint
specific or trace_unhandled hook. Use dict to check if handler points to
trace_unhandled.

Remove the exit label in python_process_general_event and return when no
handler is available.

Signed-off-by: Arun Kalyanasundaram 
Acked-by: Jiri Olsa 
Cc: Alexander Shishkin 
Cc: Daniel Borkmann 
Cc: David Carrillo-Cisneros 
Cc: David S. Miller 
Cc: Peter Zijlstra 
Cc: Seongjae Park 
Cc: Stephane Eranian 
Link: http://lkml.kernel.org/r/20170721220422.63962-2-arunkaly@google.com
Signed-off-by: Arnaldo Carvalho de Melo

tools: Adopt __noreturn from kernel sources

2017-06-19T18:14:58+00:00

To have a more compact way to specify that a function doesn't return,
instead of the open coded:

	__attribute__((noreturn))

And use it instead of the tools/perf/ specific variation, NORETURN.

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: http://lkml.kernel.org/n/tip-l0y144qzixcy5t4c6i7pdiqj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf script: Fix outdated comment for perf-trace-python

2017-06-07T23:23:22+00:00

Script generated by the '--gen-script' option contains an outdated
comment. It mentions a 'perf-trace-python' document while it has been
renamed to 'perf-script-python'. Fix it.

Signed-off-by: SeongJae Park 
Cc: Alexander Shishkin 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Fixes: 133dc4c39c57 ("perf: Rename 'perf trace' to 'perf script'")
Link: http://lkml.kernel.org/r/20170530111827.21732-2-sj38.park@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move print_binary definitions to separate files

2017-04-19T16:01:50+00:00

Continuing the split of util.[ch] into more manageable bits.

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: http://lkml.kernel.org/n/tip-5eu367rwcwnvvn7fz09l7xpb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Including missing inttypes.h header

2017-04-19T16:01:46+00:00

Needed to use the PRI[xu](32,64) formatting macros.

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: http://lkml.kernel.org/n/tip-wkbho8kaw24q67dd11q0j39f@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-02-28T19:38:18+00:00

Pull perf fixes from Ingo Molnar:
 "Misc fixes on the kernel and tooling side - nothing in particular
  stands out"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
  perf/core: Fix the perf_cpu_time_max_percent check
  perf/core: Fix perf_event_enable_on_exec() timekeeping (again)
  perf/core: Remove confusing comment and move put_ctx()
  perf record: Honor --quiet option properly
  perf annotate: Add -q/--quiet option
  perf diff: Add -q/--quiet option
  perf report: Add -q/--quiet option
  perf utils: Check verbose flag properly
  perf utils: Add perf_quiet_option()
  perf record: Add -a as default target
  perf stat: Add -a as default target
  perf tools: Fail on using multiple bits long terms without value
  perf tools: Move new_term arguments into struct parse_events_term template
  perf build: Add special fixdep cleaning rule
  perf tools: Replace _SC_NPROCESSORS_CONF with max_present_cpu in cpu_topology_map
  perf header: Make build_cpu_topology skip offline/absent CPUs
  perf cpumap: Add cpu__max_present_cpu()
  perf session: Fix DEBUG=1 build with clang
  tools lib traceevent: It's preempt not prempt
  perf python: Filter out -specs=/a/b/c from the python binding cc options
  ...