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authorJiri Olsa <jolsa@kernel.org>2019-07-21 13:24:33 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-07-29 18:34:45 -0300
commit63bd5dfa69658c459d08a6ee6bfebbd4a91cf24d (patch)
tree99a63d7a4b305151fee04dbec06bf89ac24731a4
parent634912d61ccc6bfeebb87716c276fbea20f63bdc (diff)
libperf: Add perf_evsel__new() function
Add a perf_evsel__new() function to create and init a perf_evsel struct dynamicaly. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20190721112506.12306-47-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/lib/evsel.c11
-rw-r--r--tools/perf/lib/include/perf/evsel.h1
-rw-r--r--tools/perf/lib/libperf.map1
3 files changed, 13 insertions, 0 deletions
diff --git a/tools/perf/lib/evsel.c b/tools/perf/lib/evsel.c
index 17cba35becc7..8e91738c5c38 100644
--- a/tools/perf/lib/evsel.c
+++ b/tools/perf/lib/evsel.c
@@ -2,9 +2,20 @@
#include <perf/evsel.h>
#include <linux/list.h>
#include <internal/evsel.h>
+#include <linux/zalloc.h>
void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr)
{
INIT_LIST_HEAD(&evsel->node);
evsel->attr = *attr;
}
+
+struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
+{
+ struct perf_evsel *evsel = zalloc(sizeof(*evsel));
+
+ if (evsel != NULL)
+ perf_evsel__init(evsel, attr);
+
+ return evsel;
+}
diff --git a/tools/perf/lib/include/perf/evsel.h b/tools/perf/lib/include/perf/evsel.h
index 295583b89f46..21b66fc1937f 100644
--- a/tools/perf/lib/include/perf/evsel.h
+++ b/tools/perf/lib/include/perf/evsel.h
@@ -9,5 +9,6 @@ struct perf_event_attr;
LIBPERF_API void perf_evsel__init(struct perf_evsel *evsel,
struct perf_event_attr *attr);
+LIBPERF_API struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr);
#endif /* __LIBPERF_EVSEL_H */
diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map
index 5e685d6c7a95..e3eac9b60726 100644
--- a/tools/perf/lib/libperf.map
+++ b/tools/perf/lib/libperf.map
@@ -11,6 +11,7 @@ LIBPERF_0.0.1 {
perf_thread_map__comm;
perf_thread_map__get;
perf_thread_map__put;
+ perf_evsel__new;
perf_evsel__init;
perf_evlist__new;
perf_evlist__init;