diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-07-04 15:19:13 (GMT) |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-07-06 11:57:51 (GMT) |
| commit | 64ec84f5f96ea1d043c01e32e49e45286c6f4160 (patch) | |
| tree | 2b8a7901fa56d7e5eb8d887745120ea93bcfe522 | |
| parent | 94ad89bc8a61b79c416c180c51b3e61ac16f6124 (diff) | |
| download | linux-64ec84f5f96ea1d043c01e32e49e45286c6f4160.tar.xz | |
perf evsel: Introduce append_filter() method
To allow building filters in evsel->filter, that will eventually be
applied via perf_evsel__apply_filter().
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: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-sjfoes3pycx7nlpmgedca13v@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/evsel.c | 17 | ||||
| -rw-r--r-- | tools/perf/util/evsel.h | 2 |
2 files changed, 19 insertions, 0 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index ae925b9..6cc97f3 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -836,6 +836,23 @@ int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter) return -1; } +int perf_evsel__append_filter(struct perf_evsel *evsel, + const char *op, const char *filter) +{ + char *new_filter; + + if (evsel->filter == NULL) + return perf_evsel__set_filter(evsel, filter); + + if (asprintf(&new_filter,"(%s) %s (%s)", evsel->filter, op, filter) > 0) { + free(evsel->filter); + evsel->filter = new_filter; + return 0; + } + + return -1; +} + int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads) { return perf_evsel__run_ioctl(evsel, ncpus, nthreads, diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 8aea4ba..fe9f327 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -183,6 +183,8 @@ void perf_evsel__set_sample_id(struct perf_evsel *evsel, bool use_sample_identifier); int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter); +int perf_evsel__append_filter(struct perf_evsel *evsel, + const char *op, const char *filter); int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads, const char *filter); int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads); |