This patch adds a function called by the perf auxtrace subsystem to process the auxtrace event for coresight etm. In particular it adds the event and trace data to the auxtrace queues for further processing. In the case where -D has been specified, the raw trace packets are dumped.
Signed-off-by: Tor Jeremiassen tor@ti.com --- tools/perf/util/cs-etm.c | 33 +++++++++++++++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 45a8a15..7f12406 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -224,9 +224,38 @@ static int cs_etm__process_auxtrace_event(struct perf_session *session, union perf_event *event, struct perf_tool *tool) { - (void) session; - (void) event; + struct cs_etm_auxtrace *etm = container_of(session->auxtrace, + struct cs_etm_auxtrace, + auxtrace); + (void) tool; + + if (!etm->data_queued) { + struct auxtrace_buffer *buffer; + off_t data_offset; + int fd = perf_data_file__fd(session->file); + bool is_pipe = perf_data_file__is_pipe(session->file); + int err; + + if (is_pipe) + data_offset = 0; + else { + data_offset = lseek(fd, 0, SEEK_CUR); + if (data_offset == -1) + return -errno; + } + + err = auxtrace_queues__add_event(&etm->queues, session, + event, data_offset, &buffer); + if (err) + return err; + + if (dump_trace) + if (auxtrace_buffer__get_data(buffer, fd)) { + cs_etm__dump_event(etm, buffer); + auxtrace_buffer__put_data(buffer); + } + } return 0; }