diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-02-21 11:33:47 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-02-22 22:21:27 -0300 |
| commit | be199ada4fbbe5f742f854dce8e455cfcfcf7adb (patch) | |
| tree | f7b383d5c348dded6d18d196e23e69c0b81b0db3 | |
| parent | 241b057ce5c01a24c280f124fab60109cb562589 (diff) | |
perf evlist: Introduce set_filter_pids method
We need to filter multiple pids in trace, i.e. trace itself,
gnome-terminal, X.org, etc.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-frtpkg7qapqwf7asa35wf8am@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/evlist.c | 27 | ||||
| -rw-r--r-- | tools/perf/util/evlist.h | 1 |
2 files changed, 24 insertions, 4 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 39302a455a58..8d0b62361129 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1085,19 +1085,38 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter) return err; } -int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid) +int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids) { char *filter; - int ret; + int ret = -1; + size_t i; - if (asprintf(&filter, "common_pid != %d", pid) < 0) - return -1; + for (i = 0; i < npids; ++i) { + if (i == 0) { + if (asprintf(&filter, "common_pid != %d", pids[i]) < 0) + return -1; + } else { + char *tmp; + + if (asprintf(&tmp, "%s && common_pid != %d", filter, pids[i]) < 0) + goto out_free; + + free(filter); + filter = tmp; + } + } ret = perf_evlist__set_filter(evlist, filter); +out_free: free(filter); return ret; } +int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid) +{ + return perf_evlist__set_filter_pids(evlist, 1, &pid); +} + bool perf_evlist__valid_sample_type(struct perf_evlist *evlist) { struct perf_evsel *pos; diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 715fa3a296f4..c19ff45c9ad5 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -78,6 +78,7 @@ int perf_evlist__add_newtp(struct perf_evlist *evlist, int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter); int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid); +int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids); struct perf_evsel * perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id); |