linux-kernel - [PATCH 1/8] perf inject: Hit all DSOs for AUX data in JIT and other cases

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Date:	Thu,  3 Mar 2016 13:50:49 +0200
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org,
	Stephane Eranian <eranian@...gle.com>
Subject: [PATCH 1/8] perf inject: Hit all DSOs for AUX data in JIT and other cases

Currently, when injecting build ids, if there is AUX data
then 'perf inject' hits all DSOs because it is not known
which DSOs the trace data would hit.

That needs to be done for JIT injection also, and in fact
there is no reason to distinguish what kind of injection
is being done.  That is, any time there is AUX data and
the HEADER_BUID_ID feature flag is set, and the AUX data
is not being processed, then hit all DSOs.  This patch
does that.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 tools/perf/builtin-inject.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index b38445f08c2f..c6a4f2f94ab1 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -679,12 +679,16 @@ static int __cmd_inject(struct perf_inject *inject)
 	ret = perf_session__process_events(session);
 
 	if (!file_out->is_pipe) {
-		if (inject->build_ids) {
+		if (inject->build_ids)
 			perf_header__set_feat(&session->header,
 					      HEADER_BUILD_ID);
-			if (inject->have_auxtrace)
-				dsos__hit_all(session);
-		}
+		/*
+		 * Keep all buildids when there is unprocessed AUX data because
+		 * it is not known which ones the AUX trace hits.
+		 */
+		if (perf_header__has_feat(&session->header, HEADER_BUILD_ID) &&
+		    inject->have_auxtrace && !inject->itrace_synth_opts.set)
+			dsos__hit_all(session);
 		/*
 		 * The AUX areas have been removed and replaced with
 		 * synthesized hardware events, so clear the feature flag and
-- 
1.9.1