perf inject: Do not inject BUILD_ID record if MMAP2 has it

When PERF_RECORD_MISC_MMAP_BUILD_ID is set, the event has a build-id
of the DSO already so no need to add it again.

Signed-off-by: Namhyung Kim <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

1 files changed, 24 insertions, 0 deletions

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 8bbaa46eb7e6..5d6f583e2cd3 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -399,6 +399,18 @@ static int perf_event__repipe_mmap2(struct perf_tool *tool,
 	err = perf_event__process_mmap2(tool, event, sample, machine);
 	perf_event__repipe(tool, event, sample, machine);
 
+	if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
+		struct dso *dso;
+
+		dso = findnew_dso(event->mmap2.pid, event->mmap2.tid,
+				  event->mmap2.filename, NULL, machine);
+		if (dso) {
+			/* mark it not to inject build-id */
+			dso->hit = 1;
+		}
+		dso__put(dso);
+	}
+
 	return err;
 }
 
@@ -440,6 +452,18 @@ static int perf_event__repipe_buildid_mmap2(struct perf_tool *tool,
 	};
 	struct dso *dso;
 
+	if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
+		/* cannot use dso_id since it'd have invalid info */
+		dso = findnew_dso(event->mmap2.pid, event->mmap2.tid,
+				  event->mmap2.filename, NULL, machine);
+		if (dso) {
+			/* mark it not to inject build-id */
+			dso->hit = 1;
+		}
+		dso__put(dso);
+		return 0;
+	}
+
 	dso = findnew_dso(event->mmap2.pid, event->mmap2.tid,
 			  event->mmap2.filename, &dso_id, machine);