perf tools: Reconstruct sw event with modifiers from perf_event_attr

  [root@sandy ~]# perf record -e task-clock:u -a usleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.482 MB perf.data (~21073 samples) ]
  [root@sandy ~]#

Before:

  [root@sandy ~]# perf evlist
  task-clock
  [root@sandy ~]#

After:

  [root@sandy ~]# perf evlist
  task-clock:u
  [root@sandy ~]#

Ditto for other tools.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-97ltkmj7v23kyhflltf6iz5n@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 3 insertions, 16 deletions

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index c8f8cf4a6920..641c4ac8a838 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -62,18 +62,6 @@ static struct event_symbol event_symbols[] = {
 #define PERF_EVENT_TYPE(config)         __PERF_EVENT_FIELD(config, TYPE)
 #define PERF_EVENT_ID(config)           __PERF_EVENT_FIELD(config, EVENT)
 
-static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
-        "cpu-clock",
-        "task-clock",
-        "page-faults",
-        "context-switches",
-        "CPU-migrations",
-        "minor-faults",
-        "major-faults",
-        "alignment-faults",
-        "emulation-faults",
-};
-
 #define for_each_subsystem(sys_dir, sys_dirent, sys_next)              \
         while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next)        \
         if (sys_dirent.d_type == DT_DIR &&                                     \
@@ -218,7 +206,8 @@ const char *event_name(struct perf_evsel *evsel)
         u64 config = evsel->attr.config;
         int type = evsel->attr.type;
 
-        if (type == PERF_TYPE_RAW || type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE) {
+        if (type == PERF_TYPE_RAW || type == PERF_TYPE_HARDWARE ||
+            type == PERF_TYPE_SOFTWARE || type == PERF_TYPE_HW_CACHE) {
                 /*
                  * XXX minimal fix, see comment on perf_evsen__name, this static buffer
                  * will go away together with event_name in the next devel cycle.
@@ -252,9 +241,7 @@ const char *__event_name(int type, u64 config)
                 return buf;
 
         case PERF_TYPE_SOFTWARE:
-                if (config < PERF_COUNT_SW_MAX && sw_event_names[config])
-                        return sw_event_names[config];
-                return "unknown-software";
+                return __perf_evsel__sw_name(config);
 
         case PERF_TYPE_TRACEPOINT:
                 return tracepoint_id_to_name(config);