[PATCH 25/25] perf session: Add perf_session__deliver_synth_event()

From: Arnaldo Carvalho de Melo
Date: Wed Oct 29 2014 - 10:09:09 EST


From: Adrian Hunter <adrian.hunter@xxxxxxxxx>

Add a function to deliver synthesized events from within a session.

Intel PT decoding works by synthesizing events (primarily branch events)
that can then be consumed by existing tools. This function will be used
to deliver those events.

Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1414417770-18602-3-git-send-email-adrian.hunter@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/session.c | 13 +++++++++++++
tools/perf/util/session.h | 5 +++++
2 files changed, 18 insertions(+)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 58dd5ceb8bef..f4478ce72fdb 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -907,6 +907,19 @@ static s64 perf_session__process_user_event(struct perf_session *session,
}
}

+int perf_session__deliver_synth_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_tool *tool)
+{
+ events_stats__inc(&session->stats, event->header.type);
+
+ if (event->header.type >= PERF_RECORD_USER_TYPE_START)
+ return perf_session__process_user_event(session, event, tool, 0);
+
+ return perf_session__deliver_event(session, event, sample, tool, 0);
+}
+
static void event_swap(union perf_event *event, bool sample_id_all)
{
perf_event__swap_op swap;
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index d8521ac73a10..dc26ebf60fe4 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -127,6 +127,11 @@ extern volatile int session_done;

#define session_done() ACCESS_ONCE(session_done)

+int perf_session__deliver_synth_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_tool *tool);
+
int perf_event__process_id_index(struct perf_tool *tool,
union perf_event *event,
struct perf_session *session);
--
1.9.3

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