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);