linux-kernel - [PATCH 26/40] perf annotate: Process tracing data in pipe mode

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Date:   Wed, 26 Jul 2017 11:17:16 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        David Carrillo-Cisneros <davidcc@...gle.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Elena Reshetova <elena.reshetova@...el.com>,
        Kees Kook <keescook@...omium.org>,
        Paul Turner <pjt@...gle.com>,
        Stephane Eranian <eranian@...gle.com>,
        Sudeep Holla <sudeep.holla@....com>,
        Wang Nan <wangnan0@...wei.com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 26/40] perf annotate: Process tracing data in pipe mode

From: David Carrillo-Cisneros <davidcc@...gle.com>

'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 <davidcc@...gle.com>
Tested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Elena Reshetova <elena.reshetova@...el.com>
Cc: Kees Kook <keescook@...omium.org>
Cc: Paul Turner <pjt@...gle.com>
Cc: Stephane Eranian <eranian@...gle.com>
Cc: Sudeep Holla <sudeep.holla@....com>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/r/20170719011839.99399-4-davidcc@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.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 7e33278eff67..6db782dfce96 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -396,6 +396,7 @@ 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,
 			.feature	= perf_event__process_feature,
 			.ordered_events = true,
 			.ordering_requires_timestamps = true,
-- 
2.9.4