linux-kernel - [PATCHv2 0/3] perf python: Add support to access tracepoint fields

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Date:	Fri, 15 Jul 2016 09:29:54 +0200
From:	Jiri Olsa <jolsa@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	"Steven Rostedt (Red Hat)" <rostedt@...dmis.org>,
	Jiri Pirko <jiri@...lanox.com>,
	Songshan Gong <gongss@...ux.vnet.ibm.com>,
	lkml <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: [PATCHv2 0/3] perf python: Add support to access tracepoint fields

hi,
adding support to access tracepoint fields in python scripts.

v2 changes:
  - most of the patches is already pulled in,
    this is just leftover
  - fixed is_printable_array [Steven]
  - making is_printable_array global
  - attached unrelated fix 3/3

With this patchset it's possible to access tracepoint fields
in event python object like:

  print "time %u prev_comm=%s prev_pid=%d prev_prio=%d prev_state=0x%x ==> next_comm=%s next_pid=%d next_prio=%d" % (
         event.sample_time,
         event.prev_comm,
         event.prev_pid,
         event.prev_prio,
         event.prev_state,
         event.next_comm,
         event.next_pid,
         event.next_prio)

Also available in:
  git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
  perf/fixes

thanks,
jirka


Cc: Steven Rostedt (Red Hat) <rostedt@...dmis.org>
Cc: Jiri Pirko <jiri@...lanox.com>
Cc: Songshan Gong <gongss@...ux.vnet.ibm.com>
---
Jiri Olsa (3):
      perf script python: Fix string vs byte array resolving
      perf tools: Make is_printable_array global
      tools lib api fs: Use base 0 in filename__read_ull

 tools/lib/api/fs/fs.c                                  |  7 ++++++-
 tools/perf/util/python.c                               | 12 ------------
 tools/perf/util/scripting-engines/trace-event-python.c | 25 ++++++++++++++++++-------
 tools/perf/util/util.c                                 | 14 ++++++++++++++
 tools/perf/util/util.h                                 |  1 +
 5 files changed, 39 insertions(+), 20 deletions(-)