diff options
Diffstat (limited to 'tools/perf/util/evlist.c')
| -rw-r--r-- | tools/perf/util/evlist.c | 43 |
1 files changed, 40 insertions, 3 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index d81f13de2476..86a03836a83f 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1181,12 +1181,12 @@ void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus, */ if (cpus != evlist->cpus) { cpu_map__put(evlist->cpus); - evlist->cpus = cpus; + evlist->cpus = cpu_map__get(cpus); } if (threads != evlist->threads) { thread_map__put(evlist->threads); - evlist->threads = threads; + evlist->threads = thread_map__get(threads); } perf_evlist__propagate_maps(evlist); @@ -1223,6 +1223,9 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter) int err = 0; evlist__for_each(evlist, evsel) { + if (evsel->attr.type != PERF_TYPE_TRACEPOINT) + continue; + err = perf_evsel__set_filter(evsel, filter); if (err) break; @@ -1624,7 +1627,7 @@ size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp) return printed + fprintf(fp, "\n"); } -int perf_evlist__strerror_open(struct perf_evlist *evlist __maybe_unused, +int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size) { int printed, value; @@ -1652,7 +1655,25 @@ int perf_evlist__strerror_open(struct perf_evlist *evlist __maybe_unused, "Hint:\tTry: 'sudo sh -c \"echo -1 > /proc/sys/kernel/perf_event_paranoid\"'\n" "Hint:\tThe current value is %d.", value); break; + case EINVAL: { + struct perf_evsel *first = perf_evlist__first(evlist); + int max_freq; + + if (sysctl__read_int("kernel/perf_event_max_sample_rate", &max_freq) < 0) + goto out_default; + + if (first->attr.sample_freq < (u64)max_freq) + goto out_default; + + printed = scnprintf(buf, size, + "Error:\t%s.\n" + "Hint:\tCheck /proc/sys/kernel/perf_event_max_sample_rate.\n" + "Hint:\tThe current value is %d and %" PRIu64 " is being requested.", + emsg, max_freq, first->attr.sample_freq); + break; + } default: +out_default: scnprintf(buf, size, "%s", emsg); break; } @@ -1723,3 +1744,19 @@ void perf_evlist__set_tracking_event(struct perf_evlist *evlist, tracking_evsel->tracking = true; } + +struct perf_evsel * +perf_evlist__find_evsel_by_str(struct perf_evlist *evlist, + const char *str) +{ + struct perf_evsel *evsel; + + evlist__for_each(evlist, evsel) { + if (!evsel->name) + continue; + if (strcmp(str, evsel->name) == 0) + return evsel; + } + + return NULL; +} |