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| author | Roberto Agostino Vitillo <ravitillo@lbl.gov> | 2012-02-09 23:21:01 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-03-09 08:26:04 +0100 |
| commit | b5387528f31d98acedf06e930554b563d87e2383 (patch) | |
| tree | 0a8fff59cc7d1392d7adfbbc0f9beacc9ca6d20b /tools/perf/util/evsel.c | |
| parent | d010b3326cf06b3406cdd88af16dcf4e4b6fec2e (diff) | |
| download | linux-b5387528f31d98acedf06e930554b563d87e2383.tar.gz linux-b5387528f31d98acedf06e930554b563d87e2383.tar.xz linux-b5387528f31d98acedf06e930554b563d87e2383.zip | |
perf tools: Add code to support PERF_SAMPLE_BRANCH_STACK
This patch adds:
- ability to parse samples with PERF_SAMPLE_BRANCH_STACK
- sort on branches (dso_from, symbol_from, dso_to, symbol_to, mispredict)
- build histograms on branches
Signed-off-by: Roberto Agostino Vitillo <ravitillo@lbl.gov>
Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: peterz@infradead.org
Cc: acme@redhat.com
Cc: robert.richter@amd.com
Cc: ming.m.lin@intel.com
Cc: andi@firstfloor.org
Cc: asharma@fb.com
Cc: vweaver1@eecs.utk.edu
Cc: khandual@linux.vnet.ibm.com
Cc: dsahern@gmail.com
Link: http://lkml.kernel.org/r/1328826068-11713-12-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util/evsel.c')
| -rw-r--r-- | tools/perf/util/evsel.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 302d49a9f985..a1fd1cd2a5af 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -576,6 +576,16 @@ int perf_event__parse_sample(const union perf_event *event, u64 type, data->raw_data = (void *) pdata; } + if (type & PERF_SAMPLE_BRANCH_STACK) { + u64 sz; + + data->branch_stack = (struct branch_stack *)array; + array++; /* nr */ + + sz = data->branch_stack->nr * sizeof(struct branch_entry); + sz /= sizeof(u64); + array += sz; + } return 0; } |