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-rw-r--r--tools/perf/util/header.c52
1 files changed, 51 insertions, 1 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 7454cf4..69374de 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1556,6 +1556,56 @@ static int process_build_id(struct perf_file_section *section,
return 0;
}
+static struct perf_evsel *
+perf_evlist__find_by_index(struct perf_evlist *evlist, int idx)
+{
+ struct perf_evsel *evsel;
+
+ list_for_each_entry(evsel, &evlist->entries, node) {
+ if (evsel->idx == idx)
+ return evsel;
+ }
+
+ return NULL;
+}
+
+static void
+perf_evlist__set_event_name(struct perf_evlist *evlist, struct perf_evsel *event)
+{
+ struct perf_evsel *evsel;
+
+ if (!event->name)
+ return;
+
+ evsel = perf_evlist__find_by_index(evlist, event->idx);
+ if (!evsel)
+ return;
+
+ if (evsel->name)
+ return;
+
+ evsel->name = strdup(event->name);
+}
+
+static int
+process_event_desc(struct perf_file_section *section __unused,
+ struct perf_header *header, int feat __unused, int fd,
+ void *data __used)
+{
+ struct perf_session *session = container_of(header, struct perf_session, header);
+ struct perf_evsel *evsel, *events = read_event_desc(header, fd);
+
+ if (!events)
+ return 0;
+
+ for (evsel = events; evsel->attr.size; evsel++)
+ perf_evlist__set_event_name(session->evlist, evsel);
+
+ free_event_desc(events);
+
+ return 0;
+}
+
struct feature_ops {
int (*write)(int fd, struct perf_header *h, struct perf_evlist *evlist);
void (*print)(struct perf_header *h, int fd, FILE *fp);
@@ -1589,7 +1639,7 @@ static const struct feature_ops feat_ops[HEADER_LAST_FEATURE] = {
FEAT_OPA(HEADER_CPUDESC, cpudesc),
FEAT_OPA(HEADER_CPUID, cpuid),
FEAT_OPA(HEADER_TOTAL_MEM, total_mem),
- FEAT_OPA(HEADER_EVENT_DESC, event_desc),
+ FEAT_OPP(HEADER_EVENT_DESC, event_desc),
FEAT_OPA(HEADER_CMDLINE, cmdline),
FEAT_OPF(HEADER_CPU_TOPOLOGY, cpu_topology),
FEAT_OPF(HEADER_NUMA_TOPOLOGY, numa_topology),
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