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perf tests: Add event parsing test for '*:*' tracepoints 

Adding event parsing test for '*:*' tracepoints. Checking the count
matches all the tracepoints available plus current standard tracepoint
perf_event_attr check.

This test exposes warnings from traceevent lib about not being able to
parse some tracepoints' format data. Exposing these messages in the
automated test suite will probably speed up the fix ;-)

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1355749718-4355-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2012-12-17 14:08:38 +01:00 committed by Arnaldo Carvalho de Melo
parent f35488f97b
commit 82ce75d933
1 changed files with 62 additions and 0 deletions
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62
tools/perf/tests/parse-events.c
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@ -3,6 +3,7 @@
#include "evsel.h"
#include "evlist.h"
#include "sysfs.h"
#include "debugfs.h"
#include "tests.h"
#include <linux/hw_breakpoint.h>
@ -782,6 +783,63 @@ static int test__group5(struct perf_evlist *evlist __maybe_unused)
return 0;
}
static int count_tracepoints(void)
{
char events_path[PATH_MAX];
struct dirent *events_ent;
DIR *events_dir;
int cnt = 0;
scnprintf(events_path, PATH_MAX, "%s/tracing/events",
debugfs_find_mountpoint());
events_dir = opendir(events_path);
TEST_ASSERT_VAL("Can't open events dir", events_dir);
while ((events_ent = readdir(events_dir))) {
char sys_path[PATH_MAX];
struct dirent *sys_ent;
DIR *sys_dir;
if (!strcmp(events_ent->d_name, ".")
|| !strcmp(events_ent->d_name, "..")
|| !strcmp(events_ent->d_name, "enable")
|| !strcmp(events_ent->d_name, "header_event")
|| !strcmp(events_ent->d_name, "header_page"))
continue;
scnprintf(sys_path, PATH_MAX, "%s/%s",
events_path, events_ent->d_name);
sys_dir = opendir(sys_path);
TEST_ASSERT_VAL("Can't open sys dir", sys_dir);
while ((sys_ent = readdir(sys_dir))) {
if (!strcmp(sys_ent->d_name, ".")
|| !strcmp(sys_ent->d_name, "..")
|| !strcmp(sys_ent->d_name, "enable")
|| !strcmp(sys_ent->d_name, "filter"))
continue;
cnt++;
}
closedir(sys_dir);
}
closedir(events_dir);
return cnt;
}
static int test__all_tracepoints(struct perf_evlist *evlist)
{
TEST_ASSERT_VAL("wrong events count",
count_tracepoints() == evlist->nr_entries);
return test__checkevent_tracepoint_multi(evlist);
}
struct test__event_st {
const char *name;
__u32 type;
@ -921,6 +979,10 @@ static struct test__event_st test__events[] = {
.name = "{cycles,instructions}:G,{cycles:G,instructions:G},cycles",
.check = test__group5,
},
[33] = {
.name = "*:*",
.check = test__all_tracepoints,
},
};
static struct test__event_st test__events_pmu[] = {