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perf trace: Separate routine that handles an event from the one that reads it 

Because we need to use ordered_events in some cases, so we will need to
first have them in a queue, order that queue, and then process the
event.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-cmkw9zgoh0z4r218957ftp1a@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hifive-unleashed-5.1
Arnaldo Carvalho de Melo 2015-02-21 12:10:29 -08:00
parent 77c92582a5
commit ddbb1b1310
1 changed files with 31 additions and 27 deletions
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58
tools/perf/builtin-trace.c
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@ -2092,10 +2092,39 @@ static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
return 0;
}
static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample)
{
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;
}
evsel = perf_evlist__id2evsel(trace->evlist, sample->id);
if (evsel == NULL) {
fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample->id);
return;
}
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",
perf_evsel__name(evsel), sample->tid,
sample->cpu, sample->raw_size);
} else {
tracepoint_handler handler = evsel->handler;
handler(trace, evsel, event, sample);
}
}
static int trace__run(struct trace *trace, int argc, const char **argv)
{
struct perf_evlist *evlist = trace->evlist;
struct perf_evsel *evsel;
int err = -1, i;
unsigned long before;
const bool forks = argc > 0;
@ -2190,8 +2219,6 @@ again:
union perf_event *event;
while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) {
const u32 type = event->header.type;
tracepoint_handler handler;
struct perf_sample sample;
++trace->nr_events;
@ -2202,30 +2229,7 @@ again:
goto next_event;
}
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);
continue;
}
evsel = perf_evlist__id2evsel(evlist, sample.id);
if (evsel == NULL) {
fprintf(trace->output, "Unknown tp ID %" PRIu64 ", skipping...\n", sample.id);
goto next_event;
}
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",
perf_evsel__name(evsel), sample.tid,
sample.cpu, sample.raw_size);
goto next_event;
}
handler = evsel->handler;
handler(trace, evsel, event, &sample);
trace__handle_event(trace, event, &sample);
next_event:
perf_evlist__mmap_consume(evlist, i);