libperf: Add perf_evsel__init function

Add the perf_evsel__init() function to initialize perf_evsel struct.

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/20190721112506.12306-38-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

3 files changed, 10 insertions, 0 deletions

diff --git a/tools/perf/lib/evsel.c b/tools/perf/lib/evsel.c
index 12e86de1994b..9a87e867a7ec 100644
--- a/tools/perf/lib/evsel.c
+++ b/tools/perf/lib/evsel.c
@@ -2,3 +2,8 @@
 #include <perf/evsel.h>
 #include <linux/list.h>
 #include <internal/evsel.h>
+
+void perf_evsel__init(struct perf_evsel *evsel)
+{
+        INIT_LIST_HEAD(&evsel->node);
+}
diff --git a/tools/perf/lib/include/perf/evsel.h b/tools/perf/lib/include/perf/evsel.h
index 162bffd43409..b4d074a3684b 100644
--- a/tools/perf/lib/include/perf/evsel.h
+++ b/tools/perf/lib/include/perf/evsel.h
@@ -2,6 +2,10 @@
 #ifndef __LIBPERF_EVSEL_H
 #define __LIBPERF_EVSEL_H
 
+#include <perf/core.h>
+
 struct perf_evsel;
 
+LIBPERF_API void perf_evsel__init(struct perf_evsel *evsel);
+
 #endif /* __LIBPERF_EVSEL_H */
diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map
index c4f611010ccc..54f8503c6d82 100644
--- a/tools/perf/lib/libperf.map
+++ b/tools/perf/lib/libperf.map
@@ -9,6 +9,7 @@ LIBPERF_0.0.1 {
                 perf_thread_map__comm;
                 perf_thread_map__get;
                 perf_thread_map__put;
+                perf_evsel__init;
         local:
                 *;
 };