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  1. 20 6月, 2015 1 次提交
  3. 17 1月, 2015 1 次提交
    • N
      perf tools: Fix segfault for symbol annotation on TUI · 813ccd15
      由 Namhyung Kim 提交于 
      Currently the symbol structure is allocated with symbol_conf.priv_size
to carry sideband information like annotation, map browser on TUI and
sort-by-name tree node.  So retrieving these information from symbol
needs to care about the details of such placement.

However the annotation code just assumes that the symbol is placed after
the struct annotation.  But actually there's other info between them.
So accessing those struct will lead to an undefined behavior (usually a
crash) after they write their info to the same location.

To reproduce the problem, please follow the steps below:

  1. run perf report (TUI of course) with -v option
  2. open map browser (by pressing right arrow key for any entry)
  3. search any function (by pressing '/' key and input whatever..)
  4. return to the hist browser (by pressing 'q' or left arrow key)
  5. open annotation window for the same entry (by pressing 'a' key)
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1421234288-22758-1-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      813ccd15
  5. 19 11月, 2014 1 次提交
    • A
      perf annotate: Support source line numbers in annotate · e592488c
      由 Andi Kleen 提交于 
      With srcline key/sort'ing it's useful to have line numbers in the
annotate window. This patch implements this.

Use objdump -l to request the line numbers and save them in the line
structure. Then the browser displays them for source lines.

The line numbers are not displayed by default, but can be toggled on
with 'k'

There is one unfortunate problem with this setup. For lines not
containing source and which are outside functions objdump -l reports
line numbers off by a few: it always reports the first line number in
the next function even for lines that are outside the function.

I haven't found a nice way to detect/correct this. Probably objdump has
to be fixed.

See https://sourceware.org/bugzilla/show_bug.cgi?id=16433

The line numbers are still useful even with these problems, as most are
correct and the ones which are not are nearby.

v2: Fix help text. Handle (discriminator...) output in objdump.
Left align the line numbers.
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1415844328-4884-9-git-send-email-andi@firstfloor.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      e592488c
  7. 02 5月, 2014 1 次提交
  9. 24 2月, 2014 1 次提交
  11. 19 12月, 2013 3 次提交
  13. 10 10月, 2013 1 次提交
  15. 09 10月, 2013 1 次提交
  17. 01 4月, 2013 1 次提交
  19. 16 3月, 2013 4 次提交
  21. 15 2月, 2013 2 次提交
  23. 10 11月, 2012 1 次提交
    • N
      perf annotate: Merge same lines in summary view · 41127965
      由 Namhyung Kim 提交于 
      The --print-line option of perf annotate command shows summary for
each source line.  But it didn't merge same lines so that it can
appear multiple times.

* before:

  Sorted summary for file /home/namhyung/bin/mcol
  ----------------------------------------------
     21.71 /home/namhyung/tmp/mcol.c:26
     20.66 /home/namhyung/tmp/mcol.c:25
      9.53 /home/namhyung/tmp/mcol.c:24
      7.68 /home/namhyung/tmp/mcol.c:25
      7.67 /home/namhyung/tmp/mcol.c:25
      7.66 /home/namhyung/tmp/mcol.c:26
      7.49 /home/namhyung/tmp/mcol.c:26
      6.92 /home/namhyung/tmp/mcol.c:25
      6.81 /home/namhyung/tmp/mcol.c:25
      1.07 /home/namhyung/tmp/mcol.c:26
      0.52 /home/namhyung/tmp/mcol.c:25
      0.51 /home/namhyung/tmp/mcol.c:25
      0.51 /home/namhyung/tmp/mcol.c:24

* after:

  Sorted summary for file /home/namhyung/bin/mcol
  ----------------------------------------------
     50.77 /home/namhyung/tmp/mcol.c:25
     37.94 /home/namhyung/tmp/mcol.c:26
     10.04 /home/namhyung/tmp/mcol.c:24

To do that, introduce percent_sum field so that the normal
line-by-line output doesn't get changed.
Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1352440729-21848-1-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      41127965
  25. 06 11月, 2012 1 次提交
  27. 25 10月, 2012 1 次提交
  29. 03 10月, 2012 1 次提交
  31. 11 9月, 2012 1 次提交
    • I
      perf tools: Use __maybe_used for unused variables · 1d037ca1
      由 Irina Tirdea 提交于 
      perf defines both __used and __unused variables to use for marking
unused variables. The variable __used is defined to
__attribute__((__unused__)), which contradicts the kernel definition to
__attribute__((__used__)) for new gcc versions. On Android, __used is
also defined in system headers and this leads to warnings like: warning:
'__used__' attribute ignored

__unused is not defined in the kernel and is not a standard definition.
If __unused is included everywhere instead of __used, this leads to
conflicts with glibc headers, since glibc has a variables with this name
in its headers.

The best approach is to use __maybe_unused, the definition used in the
kernel for __attribute__((unused)). In this way there is only one
definition in perf sources (instead of 2 definitions that point to the
same thing: __used and __unused) and it works on both Linux and Android.
This patch simply replaces all instances of __used and __unused with
__maybe_unused.
Signed-off-by: NIrina Tirdea <irina.tirdea@intel.com>
Acked-by: NPekka Enberg <penberg@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347315303-29906-7-git-send-email-irina.tirdea@intel.com
[ committer note: fixed up conflict with a116e05d in builtin-sched.c ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      1d037ca1
  33. 08 9月, 2012 1 次提交
  35. 06 9月, 2012 1 次提交
  37. 13 5月, 2012 2 次提交
  39. 12 5月, 2012 1 次提交
  41. 08 5月, 2012 1 次提交
  43. 26 4月, 2012 1 次提交
  45. 25 4月, 2012 1 次提交
  47. 21 4月, 2012 2 次提交
  49. 19 4月, 2012 3 次提交
  51. 16 4月, 2012 2 次提交
  53. 28 11月, 2011 1 次提交
  55. 08 10月, 2011 1 次提交
  57. 07 10月, 2011 1 次提交