Commit-ID: 64ec84f5f96ea1d043c01e32e49e45286c6f4160 Gitweb: http://git.kernel.org/tip/64ec84f5f96ea1d043c01e32e49e45286c6f4160 Author: Arnaldo Carvalho de Melo <[email protected]> AuthorDate: Sat, 4 Jul 2015 12:19:13 -0300 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Mon, 6 Jul 2015 08:57:51 -0300
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 <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/util/evsel.c | 17 +++++++++++++++++ tools/perf/util/evsel.h | 2 ++ 2 files changed, 19 insertions(+) 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); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
