Do not segfault if the event cannot be found for some reason and
tep_find_event_by_record() returns NULL.
No extra warning is added since there are others ("UNKNOWN EVENT") which
already make it clear that something is wrong:
kworker/u8:0-7 [003] 1.245773: sched_stat_runtime: comm=kworker/u8:...
[UNKNOWN EVENT][UNKNOWN EVENT][UNKNOWN EVENT]
kworker/u8:0-7 [003] 1.245776: sched_switch: kworker/u8:0:7 [120] W...
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@xxxxxxxx>
---
tracecmd/trace-read.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tracecmd/trace-read.c b/tracecmd/trace-read.c
index 6f43c1d..145c823 100644
--- a/tracecmd/trace-read.c
+++ b/tracecmd/trace-read.c
@@ -890,7 +890,8 @@ void trace_show_data(struct tracecmd_input *handle, struct tep_record *record)
trace_seq_printf(&s, " %-8s", buf);
}
- print_event_name(&s, event);
+ if (event)
+ print_event_name(&s, event);
tep_print_event(pevent, &s, record, "%s", format_type);
if (s.len && *(s.buffer + s.len - 1) == '\n')
--
2.20.1
|