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perf trace: Introduce function to set the base timestamp

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That is used in both live runs, i.e.:

  # trace ls

As when processing events recorded in a perf.data file:

  # trace -i perf.data

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-901l6yebnzeqg7z8mbaf49xb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2016-03-31 15:16:28 -03:00
parent ac0e2cd555
commit e6001980c6
1 changed files with 11 additions and 5 deletions
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16
tools/perf/builtin-trace.c
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@ -2400,6 +2400,14 @@ static bool skip_sample(struct trace *trace, struct perf_sample *sample)
return false;
}
static void trace__set_base_time(struct trace *trace,
struct perf_evsel *evsel __maybe_unused,
struct perf_sample *sample)
{
if (trace->base_time == 0 && !trace->full_time)
trace->base_time = sample->time;
}
static int trace__process_sample(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
@ -2414,8 +2422,7 @@ static int trace__process_sample(struct perf_tool *tool,
if (skip_sample(trace, sample))
return 0;
if (!trace->full_time && trace->base_time == 0)
trace->base_time = sample->time;
trace__set_base_time(trace, evsel, sample);
if (handler) {
++trace->nr_events;
@ -2553,9 +2560,6 @@ static void trace__handle_event(struct trace *trace, union perf_event *event, st
const u32 type = event->header.type;
struct perf_evsel *evsel;
if (!trace->full_time && trace->base_time == 0)
trace->base_time = sample->time;
if (type != PERF_RECORD_SAMPLE) {
trace__process_event(trace, trace->host, event, sample);
return;
@ -2567,6 +2571,8 @@ static void trace__handle_event(struct trace *trace, union perf_event *event, st
return;
}
trace__set_base_time(trace, evsel, sample);
if (evsel->attr.type == PERF_TYPE_TRACEPOINT &&
sample->raw_data == NULL) {
fprintf(trace->output, "%s sample with no payload for tid: %d, cpu %d, raw_size=%d, skipping...\n",