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-rw-r--r--tools/perf/builtin-stat.c33
1 files changed, 29 insertions, 4 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index c941bb640f49..4532a789fbe3 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -283,6 +283,8 @@ static int create_perf_stat_counter(struct perf_evsel *evsel,
283{ 283{
284 struct perf_event_attr *attr = &evsel->attr; 284 struct perf_event_attr *attr = &evsel->attr;
285 struct xyarray *group_fd = NULL; 285 struct xyarray *group_fd = NULL;
286 bool exclude_guest_missing = false;
287 int ret;
286 288
287 if (group && evsel != first) 289 if (group && evsel != first)
288 group_fd = first->fd; 290 group_fd = first->fd;
@@ -293,16 +295,39 @@ static int create_perf_stat_counter(struct perf_evsel *evsel,
293 295
294 attr->inherit = !no_inherit; 296 attr->inherit = !no_inherit;
295 297
296 if (system_wide) 298retry:
297 return perf_evsel__open_per_cpu(evsel, evsel_list->cpus, 299 if (exclude_guest_missing)
300 evsel->attr.exclude_guest = evsel->attr.exclude_host = 0;
301
302 if (system_wide) {
303 ret = perf_evsel__open_per_cpu(evsel, evsel_list->cpus,
298 group, group_fd); 304 group, group_fd);
305 if (ret)
306 goto check_ret;
307 return 0;
308 }
309
299 if (!target_pid && !target_tid && (!group || evsel == first)) { 310 if (!target_pid && !target_tid && (!group || evsel == first)) {
300 attr->disabled = 1; 311 attr->disabled = 1;
301 attr->enable_on_exec = 1; 312 attr->enable_on_exec = 1;
302 } 313 }
303 314
304 return perf_evsel__open_per_thread(evsel, evsel_list->threads, 315 ret = perf_evsel__open_per_thread(evsel, evsel_list->threads,
305 group, group_fd); 316 group, group_fd);
317 if (!ret)
318 return 0;
319 /* fall through */
320check_ret:
321 if (ret && errno == EINVAL) {
322 if (!exclude_guest_missing &&
323 (evsel->attr.exclude_guest || evsel->attr.exclude_host)) {
324 pr_debug("Old kernel, cannot exclude "
325 "guest or host samples.\n");
326 exclude_guest_missing = true;
327 goto retry;
328 }
329 }
330 return ret;
306} 331}
307 332
308/* 333/*