perf stat report: Process event update events

Adding processing of event update events, so perf stat report can store
additional info for events - unit,scale,name.

Committer note:

Before:

  # perf stat record -e power/energy-cores/ -a
  ^C
  Performance counter stats for 'system wide':

             77.41 Joules power/energy-cores/

       1.597176695 seconds time elapsed

  # perf stat report

  Performance counter stats for '/home/acme/bin/perf stat record -e power/energy-cores/ -a':

   332,488,114,176      power/energy-cores/

       1.597176695 seconds time elapsed

  #

After, using the same perf.data file generated in the "Before" case
above:

  # perf stat report

  Performance counter stats for '/home/acme/bin/perf stat record -e power/energy-cores/ -a':

             77.41 Joules power/energy-cores/

       1.597176695 seconds time elapsed

  #

Reported-by: Kan Liang <[email protected]>
Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index d27d1b921efa89513e16f5c58ad0030a436c662e..3ccf5a9dab335be1608c3e652909ae7ad841d161 100644 (file)
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1736,6 +1736,7 @@ static const char * const report_usage[] = {
 static struct perf_stat perf_stat = {
        .tool = {
                .attr           = perf_event__process_attr,
+               .event_update   = perf_event__process_event_update,
                .thread_map     = process_thread_map_event,
                .cpu_map        = process_cpu_map_event,
                .stat_config    = process_stat_config_event,