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authorLeo Yan <leo.yan@linaro.org>2018-07-11 10:45:44 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-07-31 17:22:11 +0300
commitd603b4e9f9c3181f2dacb989bba60081b99befe4 (patch)
tree45084842670b183559127220cbd5ed84ad3381aa /tools/perf/util/cs-etm.c
parent6035b6804bdfd662c8ee6226dc90f3764060ec73 (diff)
downloadlinux-d603b4e9f9c3181f2dacb989bba60081b99befe4.tar.xz
perf cs-etm: Generate branch sample when receiving a CS_ETM_TRACE_ON packet
If one CS_ETM_TRACE_ON packet is inserted, we miss to generate branch sample for the previous CS_ETM_RANGE packet. This patch is to generate branch sample when receiving a CS_ETM_TRACE_ON packet, so this can save complete info for the previous CS_ETM_RANGE packet just before CS_ETM_TRACE_ON packet. Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Walker <robert.walker@arm.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1531295145-596-6-git-send-email-leo.yan@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/cs-etm.c')
-rw-r--r--tools/perf/util/cs-etm.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 976db8483478..d3b794286bca 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -935,6 +935,7 @@ static int cs_etm__sample(struct cs_etm_queue *etmq)
static int cs_etm__flush(struct cs_etm_queue *etmq)
{
int err = 0;
+ struct cs_etm_auxtrace *etm = etmq->etm;
struct cs_etm_packet *tmp;
if (!etmq->prev_packet)
@@ -965,6 +966,13 @@ static int cs_etm__flush(struct cs_etm_queue *etmq)
}
+ if (etm->sample_branches &&
+ etmq->prev_packet->sample_type == CS_ETM_RANGE) {
+ err = cs_etm__synth_branch_sample(etmq);
+ if (err)
+ return err;
+ }
+
swap_packet:
if (etmq->etm->synth_opts.last_branch) {
/*