linux-kernel - [Patch 1/4] perf report: Add function for verbose dump of raw data

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Date:   Fri, 11 Jan 2019 12:52:56 +0100
From:   Thomas Richter <tmricht@...ux.ibm.com>
To:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        acme@...nel.org
Cc:     brueckner@...ux.vnet.ibm.com, schwidefsky@...ibm.com,
        heiko.carstens@...ibm.com, Thomas Richter <tmricht@...ux.ibm.com>
Subject: [Patch 1/4] perf report: Add function for verbose dump of raw data

Add support to call an architecture dependend function to interpret
raw data verbatim when dumping the perf.data file with
option -D.

This allows to display the event's raw data more verbatim
than just plain hex data.

Signed-off-by: Thomas Richter <tmricht@...ux.ibm.com>
---
 tools/perf/util/session.c | 7 +++++++
 tools/perf/util/session.h | 3 +++
 2 files changed, 10 insertions(+)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 7d2c8ce6cfad..1c8d6d0ef300 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1050,6 +1050,12 @@ static void sample_read__printf(struct perf_sample *sample, u64 read_format)
 			sample->read.one.id, sample->read.one.value);
 }
 
+void __weak arch__trace_event(struct perf_evlist *evlist __maybe_unused,
+			      union perf_event *event __maybe_unused,
+			      struct perf_sample *sample __maybe_unused)
+{
+}
+
 static void dump_event(struct perf_evlist *evlist, union perf_event *event,
 		       u64 file_offset, struct perf_sample *sample)
 {
@@ -1060,6 +1066,7 @@ static void dump_event(struct perf_evlist *evlist, union perf_event *event,
 	       file_offset, event->header.size, event->header.type);
 
 	trace_event(event);
+	arch__trace_event(evlist, event, sample);
 
 	if (sample)
 		perf_evlist__print_tstamp(evlist, event, sample);
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index d96eccd7d27f..160d9cd6a3ae 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -128,4 +128,7 @@ int perf_event__synthesize_id_index(struct perf_tool *tool,
 				    struct perf_evlist *evlist,
 				    struct machine *machine);
 
+void arch__trace_event(struct perf_evlist *evlist __maybe_unused,
+		       union perf_event *event __maybe_unused,
+		       struct perf_sample *sample __maybe_unused);
 #endif /* __PERF_SESSION_H */
-- 
2.14.3