[PATCH v2 04/16] perf: add minimal support for PERF_SAMPLE_WEIGHT

[Stephane Eranian <eranian@google.com>]

Ensure we grab the weight from  raw sample struct
and that we can dump it via perf report -D.

Signed-off-by: Stephane Eranian <eranian@google.com>
---
 tools/perf/util/event.h   |    1 +
 tools/perf/util/evsel.c   |    5 +++++
 tools/perf/util/session.c |    3 +++
 3 files changed, 9 insertions(+)

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 0d573ff..cf52977 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -90,6 +90,7 @@ struct perf_sample {
 	u64 period;
 	u32 cpu;
 	u32 raw_size;
+	u64 weight;
 	void *raw_data;
 	struct ip_callchain *callchain;
 	struct branch_stack *branch_stack;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 618d411..b6f3697 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1020,6 +1020,11 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
 		}
 	}
 
+	if (type & PERF_SAMPLE_WEIGHT) {
+		data->weight= *array;
+		array++;
+	}
+
 	return 0;
 }
 
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 15abe40..962c04f 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1006,6 +1006,9 @@ static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
 
 	if (sample_type & PERF_SAMPLE_STACK_USER)
 		stack_user__printf(&sample->user_stack);
+
+	if (sample_type & PERF_SAMPLE_WEIGHT)
+		printf(" ... weight: %"PRIu64"\n", sample->weight);
 }
 
 static struct machine *
-- 
1.7.9.5