[PATCH 1/6] perf tools: Add clockid_name function

[Jiri Olsa <jolsa@kernel.org>]

Adding clockid_name function to get the clock name based
on its clockid. It will be used in following changes.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/builtin-record.c | 11 +++++++++++
 tools/perf/util/util.h      |  2 ++
 2 files changed, 13 insertions(+)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index b6bdccd875bc..468c669519a6 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -2121,6 +2121,17 @@ static const struct clockid_map clockids[] = {
 	CLOCKID_END,
 };
 
+const char *clockid_name(clockid_t clk_id)
+{
+	const struct clockid_map *cm;
+
+	for (cm = clockids; cm->name; cm++) {
+		if (cm->clockid == clk_id)
+			return cm->name;
+	}
+	return "(not found)";
+}
+
 static int get_clockid_res(clockid_t clk_id, u64 *res_ns)
 {
 	struct timespec res;
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index f486fdd3a538..126dad238ee3 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -62,4 +62,6 @@ char *perf_exe(char *buf, int len);
 #endif
 #endif
 
+const char *clockid_name(clockid_t clk_id);
+
 #endif /* GIT_COMPAT_UTIL_H */
-- 
2.25.4