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/util/python.c b/tools/perf/util/python.c
index 4174c09..3344d6e 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -675,6 +675,7 @@
union perf_event *event;
int sample_id_all = 1, cpu;
static char *kwlist[] = {"sample_id_all", NULL, NULL};
+ int err;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
&cpu, &sample_id_all))
@@ -690,12 +691,17 @@
return PyErr_NoMemory();
first = list_entry(evlist->entries.next, struct perf_evsel, node);
- perf_event__parse_sample(event, first->attr.sample_type,
- perf_sample_size(first->attr.sample_type),
- sample_id_all, &pevent->sample);
+ err = perf_event__parse_sample(event, first->attr.sample_type,
+ perf_sample_size(first->attr.sample_type),
+ sample_id_all, &pevent->sample);
+ if (err) {
+ pr_err("Can't parse sample, err = %d\n", err);
+ goto end;
+ }
+
return pyevent;
}
-
+end:
Py_INCREF(Py_None);
return Py_None;
}