| From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 08/43] perf report: Fix regression when decoding intel_pt traces | Date | Tue, 23 Jan 2018 10:12:16 -0300 |
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From: Mathieu Poirier <mathieu.poirier@linaro.org>
Commit (93d10af26bb7 perf tools: Optimize sample parsing for ordered events) breaks intelPT trace decoding by invariably returning an error if the event type isn't a PERF_SAMPLE_TIME.
With this patch the timestamp is initialised and processing is allowed to continue if the error returned by function perf_evlist__parse_sample_timestamp() is not a fault.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Fixes: 93d10af26bb7 ("perf tools: Optimize sample parsing for ordered events") Link: http://lkml.kernel.org/r/1515616312-27645-1-git-send-email-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/session.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 8d0fa2f8da16..c71ced7db152 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1508,10 +1508,10 @@ static s64 perf_session__process_event(struct perf_session *session, return perf_session__process_user_event(session, event, file_offset); if (tool->ordered_events) { - u64 timestamp; + u64 timestamp = -1ULL; ret = perf_evlist__parse_sample_timestamp(evlist, event, ×tamp); - if (ret) + if (ret && ret != -1) return ret; ret = perf_session__queue_event(session, event, timestamp, file_offset); -- 2.14.3
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