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| author | Adrian Hunter <adrian.hunter@intel.com> | 2015-09-25 16:15:39 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-09-28 16:53:44 -0300 |
| commit | 601897b54c7ed492a89b262dccd7c6f7faf12b30 (patch) | |
| tree | f7044554d8941c84f3aaba56a93122d59d5a7f20 /tools/perf/util/auxtrace.h | |
| parent | 35ca01c117da9b8e5b60204f730cdde414735596 (diff) | |
| download | lwn-601897b54c7ed492a89b262dccd7c6f7faf12b30.tar.gz lwn-601897b54c7ed492a89b262dccd7c6f7faf12b30.zip | |
perf auxtrace: Add option to synthesize branch stacks on samples
Add AUX area tracing option 'l' to synthesize branch stacks on samples
just like sample type PERF_SAMPLE_BRANCH_STACK. This is taken into use
by Intel PT in a subsequent patch.
Based-on-patch-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-9-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/auxtrace.h')
| -rw-r--r-- | tools/perf/util/auxtrace.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index bf72b77a588a..b86f90db1352 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -63,7 +63,9 @@ enum itrace_period_type { * @calls: limit branch samples to calls (can be combined with @returns) * @returns: limit branch samples to returns (can be combined with @calls) * @callchain: add callchain to 'instructions' events + * @last_branch: add branch context to 'instruction' events * @callchain_sz: maximum callchain size + * @last_branch_sz: branch context size * @period: 'instructions' events period * @period_type: 'instructions' events period type */ @@ -79,7 +81,9 @@ struct itrace_synth_opts { bool calls; bool returns; bool callchain; + bool last_branch; unsigned int callchain_sz; + unsigned int last_branch_sz; unsigned long long period; enum itrace_period_type period_type; }; |