perf annotate was missing the handler for tracing data records. Prior to this patch we obtained "unhandled" records when piping trace events to perf annotate (using -D option to show the dump_printf messages in process_event_synth_tracing_data_stub):
$ perf record -o - -e block:bio_free sleep 2 | perf annotate -D --stdio ... 0x78 [0xc]: PERF_RECORD_TRACING_DATA: unhandled! ... Signed-off-by: David Carrillo-Cisneros <davi...@google.com> --- tools/perf/builtin-annotate.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 7a5dc7e5c577..ce44edc30c71 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -397,6 +397,7 @@ int cmd_annotate(int argc, const char **argv) .namespaces = perf_event__process_namespaces, .attr = perf_event__process_attr, .build_id = perf_event__process_build_id, + .tracing_data = perf_event__process_tracing_data, .ordered_events = true, .ordering_requires_timestamps = true, }, -- 2.13.0.303.g4ebf302169-goog