Commit-ID: d603b4e9f9c3181f2dacb989bba60081b99befe4
Gitweb: https://git.kernel.org/tip/d603b4e9f9c3181f2dacb989bba60081b99befe4
Author: Leo Yan <leo.yan@xxxxxxxxxx>
AuthorDate: Wed, 11 Jul 2018 15:45:44 +0800
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 31 Jul 2018 11:22:11 -0300
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@xxxxxxxxxx>
Reviewed-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Kim Phillips <kim.phillips@xxxxxxx>
Cc: Mike Leach <mike.leach@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Robert Walker <robert.walker@xxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/1531295145-596-6-git-send-email-leo.yan@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/cs-etm.c | 8 ++++++++
1 file changed, 8 insertions(+)
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) {
/*
--
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