perf list: Honour 'event_glob' whem printing selectable PMUs

Commit-ID:  fa52ceabc2a3e70431a82bca2bc547a15eaf19df
Gitweb:     http://git.kernel.org/tip/fa52ceabc2a3e70431a82bca2bc547a15eaf19df
Author:     Arnaldo Carvalho de Melo <[email protected]>
AuthorDate: Fri, 2 Oct 2015 15:28:16 -0300
Committer:  Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Fri, 2 Oct 2015 15:28:16 -0300

perf list: Honour 'event_glob' whem printing selectable PMUs

Some PMUs, like the 'intel_bts' one can be used as an event name, i.e.:

	$ perf record -e intel_bts:// usleep 1

Is a valid event name.

But the code printing such PMUs was not honouring the 'event_glob' parameter, so the following line was always appearing:

  $ intel_bts//                                        [Kernel PMU event]

Fix it:

  $ [acme@felicio linux]$ perf list data

List of pre-defined events (to be used in -e):

uncore_imc/data_reads/ [Kernel PMU event]
uncore_imc/data_writes/ [Kernel PMU event]

$

---
 tools/perf/util/pmu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

index 41a356b..e4b173d 100644
@@ -1008,7 +1008,8 @@ void print_pmu_events(const char *event_glob, bool name_only)
 				goto out_enomem;
 			j++;
 		}
-		if (pmu->selectable) {
+		if (pmu->selectable &&
+		    (event_glob == NULL || strglobmatch(pmu->name, event_glob))) {
 			char *s;
 			if (asprintf(&s, "%s//", pmu->name) < 0)
 				goto out_enomem;