diff options
| author | Ingo Molnar <mingo@kernel.org> | 2015-05-06 04:42:12 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-06 04:42:12 +0200 |
| commit | 1836ac856e4fb446e48afa4f8cae897d4856b06c (patch) | |
| tree | 1b5da329b15a09e13189801c82266fb6805a90af /tools/perf/util/pstack.c | |
| parent | 5ebe6afaf0057ac3eaeb98defd5456894b446d22 (diff) | |
| parent | 3698dab1c849c7e1cd440df4fca24baa1973d53b (diff) | |
Merge tag 'perf-core-for-mingo-3' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
User visible changes:
- Improve --filter support for 'perf probe', allowing using its arguments
on other commands, as --add, --del, etc (Masami Hiramatsu)
- Show warning when running 'perf kmem stat' on a unsuitable perf.data file,
i.e. one with events that are not the ones required for the stat variant
used (Namhyung Kim).
Infrastructure changes:
- Auxtrace support patches, paving the way to support Intel PT and BTS (Adrian Hunter)
- hists browser (top, report) refactorings (Namhyung Kim)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/util/pstack.c')
| -rw-r--r-- | tools/perf/util/pstack.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/util/pstack.c b/tools/perf/util/pstack.c index a126e6cc6e73..b234a6e3d0d4 100644 --- a/tools/perf/util/pstack.c +++ b/tools/perf/util/pstack.c @@ -74,3 +74,10 @@ void *pstack__pop(struct pstack *pstack) pstack->entries[pstack->top] = NULL; return ret; } + +void *pstack__peek(struct pstack *pstack) +{ + if (pstack->top == 0) + return NULL; + return pstack->entries[pstack->top - 1]; +} |