diff options
| author | Stephane Eranian <[email protected]> | 2015-11-30 10:02:23 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2016-02-05 12:33:09 -0300 |
| commit | 598b7c6919c7bbcc1243009721a01bc12275ff3e (patch) | |
| tree | a774366184bc50f78d124bdb597965b378ec9a9d /tools/perf/scripts/python | |
| parent | 209045adc2bbdb2b315fa5539cec54d01cd3e7db (diff) | |
perf jit: add source line info support
This patch adds source line information support to perf for jitted code.
The source line info must be emitted by the runtime, such as JVMTI.
Perf injects extract the source line info from the jitdump file and adds
the corresponding .debug_lines section in the ELF image generated for
each jitted function.
The source line enables matching any address in the profile with a
source file and line number.
The improvement is visible in perf annotate with the source code
displayed alongside the assembly code.
The dwarf code leverages the support from OProfile which is also
released under GPLv2. Copyright 2007 OProfile authors.
Signed-off-by: Stephane Eranian <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Carl Love <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John McCutchan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Pawel Moll <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Sonny Rao <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions