perf cs-etm: Print auxtrace info even if OpenCSD isn't linked

Printing the info doesn't have any dependency on OpenCSD, and neither
does recording Coresight data. Because it's sometimes useful to look at
the info for debugging, it makes sense to be able to see it on the same
platform that the recording was made on.

So pull the auxtrace info printing parts into a new file that is always
compiled into Perf.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Al Grant <Al.Grant@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20221212155513.2259623-6-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 9 insertions, 3 deletions

diff --git a/tools/perf/util/cs-etm.h b/tools/perf/util/cs-etm.h
index 401f74be98d6..5da50d5dae6b 100644
--- a/tools/perf/util/cs-etm.h
+++ b/tools/perf/util/cs-etm.h
@@ -202,9 +202,13 @@ struct cs_etm_packet_queue {
 #define CS_ETMV4_PRIV_SIZE (CS_ETMV4_PRIV_MAX * sizeof(u64))
 #define CS_ETE_PRIV_SIZE (CS_ETE_PRIV_MAX * sizeof(u64))
 
-#ifdef HAVE_CSTRACE_SUPPORT
+#define INFO_HEADER_SIZE (sizeof(((struct perf_record_auxtrace_info *)0)->type) + \
+			  sizeof(((struct perf_record_auxtrace_info *)0)->reserved__))
+
 int cs_etm__process_auxtrace_info(union perf_event *event,
 				  struct perf_session *session);
+
+#ifdef HAVE_CSTRACE_SUPPORT
 int cs_etm__get_cpu(u8 trace_chan_id, int *cpu);
 int cs_etm__get_pid_fmt(u8 trace_chan_id, u64 *pid_fmt);
 int cs_etm__etmq_set_tid(struct cs_etm_queue *etmq,
@@ -214,10 +218,12 @@ void cs_etm__etmq_set_traceid_queue_timestamp(struct cs_etm_queue *etmq,
 					      u8 trace_chan_id);
 struct cs_etm_packet_queue
 *cs_etm__etmq_get_packet_queue(struct cs_etm_queue *etmq, u8 trace_chan_id);
+int cs_etm__process_auxtrace_info_full(union perf_event *event __maybe_unused,
+				       struct perf_session *session __maybe_unused);
 #else
 static inline int
-cs_etm__process_auxtrace_info(union perf_event *event __maybe_unused,
-			      struct perf_session *session __maybe_unused)
+cs_etm__process_auxtrace_info_full(union perf_event *event __maybe_unused,
+				   struct perf_session *session __maybe_unused)
 {
 	pr_err("\nCS ETM Trace: OpenCSD is not linked in, please recompile with CORESIGHT=1\n");
 	return -1;