perf report: Name events in stats for pipe mode

In stats mode PERF_RECORD_EVENT_UPDATE isn't being handled meaning the
evsels aren't named when handling pipe mode output.

Before:

  $ perf record -e inst_retired.any -a -o - sleep 0.1|perf report --stats -i -
  ...
  Aggregated stats:
             TOTAL events:      23358
              COMM events:       2608  (11.2%)
              EXIT events:          1  ( 0.0%)
              FORK events:       2607  (11.2%)
            SAMPLE events:        174  ( 0.7%)
             MMAP2 events:      17936  (76.8%)
              ATTR events:          2  ( 0.0%)
    FINISHED_ROUND events:          2  ( 0.0%)
          ID_INDEX events:          1  ( 0.0%)
        THREAD_MAP events:          1  ( 0.0%)
           CPU_MAP events:          1  ( 0.0%)
      EVENT_UPDATE events:          3  ( 0.0%)
         TIME_CONV events:          1  ( 0.0%)
           FEATURE events:         20  ( 0.1%)
     FINISHED_INIT events:          1  ( 0.0%)
  raw 0xc0 stats:
            SAMPLE events:        174

After:

  $ perf record -e inst_retired.any -a -o - sleep 0.1|perf report --stats -i -
  ...
  Aggregated stats:
             TOTAL events:      23742
              COMM events:       2620  (11.0%)
              EXIT events:          2  ( 0.0%)
              FORK events:       2619  (11.0%)
            SAMPLE events:        165  ( 0.7%)
             MMAP2 events:      18304  (77.1%)
              ATTR events:          2  ( 0.0%)
    FINISHED_ROUND events:          2  ( 0.0%)
          ID_INDEX events:          1  ( 0.0%)
        THREAD_MAP events:          1  ( 0.0%)
           CPU_MAP events:          1  ( 0.0%)
      EVENT_UPDATE events:          3  ( 0.0%)
         TIME_CONV events:          1  ( 0.0%)
           FEATURE events:         20  ( 0.1%)
     FINISHED_INIT events:          1  ( 0.0%)
  inst_retired.any stats:
            SAMPLE events:        165

This makes the pipe output match the regular output.

Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

1 files changed, 1 insertions, 0 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index c304d9b06190..5dc17ffee27a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -816,6 +816,7 @@ static void stats_setup(struct report *rep)
 	rep->tool.attr = process_attr;
 	rep->tool.sample = count_sample_event;
 	rep->tool.lost_samples = count_lost_samples_event;
+	rep->tool.event_update = perf_event__process_event_update;
 	rep->tool.no_warn = true;
 }