From 0ad21f6869222fd7fd7c63f02febea082e801fc2 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 30 Apr 2015 17:37:30 +0300 Subject: perf tools: Add support for PERF_RECORD_ITRACE_START Add support for the PERF_RECORD_ITRACE_START event type. This event can be used to determine the pid and tid that are running when Instruction Tracing starts. Generally that information would come from a sched_switch event but, at the start, no sched_switch events may yet have been recorded. Signed-off-by: Adrian Hunter Acked-by: Jiri Olsa Cc: David Ahern Cc: Frederic Weisbecker Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1430404667-10593-8-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/machine.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'tools/perf/util/machine.c') diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index a7ad511..2f47110 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -494,6 +494,14 @@ int machine__process_aux_event(struct machine *machine __maybe_unused, return 0; } +int machine__process_itrace_start_event(struct machine *machine __maybe_unused, + union perf_event *event) +{ + if (dump_trace) + perf_event__fprintf_itrace_start(event, stdout); + return 0; +} + struct map *machine__new_module(struct machine *machine, u64 start, const char *filename) { @@ -1341,6 +1349,9 @@ int machine__process_event(struct machine *machine, union perf_event *event, ret = machine__process_lost_event(machine, event, sample); break; case PERF_RECORD_AUX: ret = machine__process_aux_event(machine, event); break; + case PERF_RECORD_ITRACE_START: + ret = machine__process_itrace_start_event(machine, event); + break; default: ret = -1; break; -- cgit v1.1