[PATCH 2/5] perf buildid-list: Requires ordered events

From: Arnaldo Carvalho de Melo
Date: Fri Nov 13 2015 - 15:58:37 EST

From: Adrian Hunter <adrian.hunter@xxxxxxxxx>

'perf buildid-list' processes events to determine hits (i.e. with-hits
option). That may not work if events are not sorted in order. i.e. MMAP
events must be processed before the samples that depend on them so that
sample processing can 'hit' the DSO to which the MMAP refers.

Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1447408112-1920-3-git-send-email-adrian.hunter@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
tools/perf/util/build-id.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index d909459fb54c..217b5a60e2ab 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -76,6 +76,7 @@ struct perf_tool build_id__mark_dso_hit_ops = {
.exit = perf_event__exit_del_thread,
.attr = perf_event__process_attr,
.build_id = perf_event__process_build_id,
+ .ordered_events = true,

int build_id__sprintf(const u8 *build_id, int len, char *bf)

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