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Subject[PATCH 01/17] perf cs-etm: Print error for new PERF_RECORD_AUX_OUTPUT_HW_ID versions
Date
The likely fix for this is to update Perf so print a helpful message.

Signed-off-by: James Clark <james.clark@arm.com>
---
tools/perf/util/cs-etm.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index d65d7485886c..32818bd7cd17 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -335,8 +335,11 @@ static int cs_etm__process_aux_output_hw_id(struct perf_session *session,
trace_chan_id = FIELD_GET(CS_AUX_HW_ID_TRACE_ID_MASK, hw_id);

/* check that we can handle this version */
- if (version > CS_AUX_HW_ID_CURR_VERSION)
+ if (version > CS_AUX_HW_ID_CURR_VERSION) {
+ pr_err("CS ETM Trace: PERF_RECORD_AUX_OUTPUT_HW_ID version %d not supported. Please update Perf.\n",
+ version);
return -EINVAL;
+ }

/* get access to the etm metadata */
etm = container_of(session->auxtrace, struct cs_etm_auxtrace, auxtrace);
--
2.34.1

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