[tip:perf/urgent] perf buildid-list: Requires ordered events

From: tip-bot for Adrian Hunter
Date: Wed Nov 18 2015 - 01:19:28 EST

Commit-ID: 1216b65c502e0f130cc9984dfd5f9e1968c1eb46
Gitweb: http://git.kernel.org/tip/1216b65c502e0f130cc9984dfd5f9e1968c1eb46
Author: Adrian Hunter <adrian.hunter@xxxxxxxxx>
AuthorDate: Fri, 13 Nov 2015 11:48:31 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 13 Nov 2015 12:22:04 -0300

perf buildid-list: Requires ordered events

'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 d909459..217b5a6 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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