1 files changed, 26 insertions, 0 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index a67cc3f2fa74..9a30ccb7b104 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2724,6 +2724,32 @@ int evsel__parse_sample_timestamp(struct evsel *evsel, union perf_event *event,
 	return 0;
 }
 
+u16 evsel__id_hdr_size(struct evsel *evsel)
+{
+	u64 sample_type = evsel->core.attr.sample_type;
+	u16 size = 0;
+
+	if (sample_type & PERF_SAMPLE_TID)
+		size += sizeof(u64);
+
+	if (sample_type & PERF_SAMPLE_TIME)
+		size += sizeof(u64);
+
+	if (sample_type & PERF_SAMPLE_ID)
+		size += sizeof(u64);
+
+	if (sample_type & PERF_SAMPLE_STREAM_ID)
+		size += sizeof(u64);
+
+	if (sample_type & PERF_SAMPLE_CPU)
+		size += sizeof(u64);
+
+	if (sample_type & PERF_SAMPLE_IDENTIFIER)
+		size += sizeof(u64);
+
+	return size;
+}
+
 struct tep_format_field *evsel__field(struct evsel *evsel, const char *name)
 {
 	return tep_find_field(evsel->tp_format, name);