The perf_evlist__event2evsel() is changed to handle
non-sample events (such as mmap events) that have no
id sample appended i.e. when sample_id_all is not set.
Note that such events have a fixed format, so that
the selected event (evsel) they are associated with
is immaterial.
Signed-off-by: Adrian Hunter <adrian.hun...@intel.com>
---
tools/perf/util/evlist.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index b8727ae..7101283 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -446,20 +446,25 @@ static int perf_evlist__event2id(struct perf_evlist
*evlist,
static struct perf_evsel *perf_evlist__event2evsel(struct perf_evlist *evlist,
union perf_event *event)
{
+ struct perf_evsel *first = perf_evlist__first(evlist);
struct hlist_head *head;
struct perf_sample_id *sid;
int hash;
u64 id;
if (evlist->nr_entries == 1)
- return perf_evlist__first(evlist);
+ return first;
+
+ if (!first->attr.sample_id_all &&
+ event->header.type != PERF_RECORD_SAMPLE)
+ return first;
if (perf_evlist__event2id(evlist, event, &id))
return NULL;
/* Synthesized events have an id of zero */
if (!id)
- return perf_evlist__first(evlist);
+ return first;
hash = hash_64(id, PERF_EVLIST__HLIST_BITS);
head = &evlist->heads[hash];
--
1.7.11.7
--
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