perf tools: Propagate event parse error handling
Better handle event parsing error by propagating the details
in upper layers or by dumping some failure message. So that
the user knows he has some crazy events in the batch.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 7e3d6e3..74f533c 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -805,9 +805,14 @@
{
struct perf_sample sample;
union perf_event *event;
+ int ret;
while ((event = perf_evlist__read_on_cpu(top.evlist, cpu)) != NULL) {
- perf_session__parse_sample(self, event, &sample);
+ ret = perf_session__parse_sample(self, event, &sample);
+ if (ret) {
+ pr_err("Can't parse sample, err = %d\n", ret);
+ continue;
+ }
if (event->header.type == PERF_RECORD_SAMPLE)
perf_event__process_sample(event, &sample, self);