diff options
Diffstat (limited to 'tools/perf/util/pmus.c')
| -rw-r--r-- | tools/perf/util/pmus.c | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/tools/perf/util/pmus.c b/tools/perf/util/pmus.c index d891d72c824e..0866dee3fc62 100644 --- a/tools/perf/util/pmus.c +++ b/tools/perf/util/pmus.c @@ -137,8 +137,10 @@ static void pmu_read_sysfs(bool core_only) return; dir = fdopendir(fd); - if (!dir) + if (!dir) { + close(fd); return; + } while ((dent = readdir(dir))) { if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, "..")) @@ -524,6 +526,39 @@ bool perf_pmus__supports_extended_type(void) return perf_pmus__do_support_extended_type; } +char *perf_pmus__default_pmu_name(void) +{ + int fd; + DIR *dir; + struct dirent *dent; + char *result = NULL; + + if (!list_empty(&core_pmus)) + return strdup(list_first_entry(&core_pmus, struct perf_pmu, list)->name); + + fd = perf_pmu__event_source_devices_fd(); + if (fd < 0) + return strdup("cpu"); + + dir = fdopendir(fd); + if (!dir) { + close(fd); + return strdup("cpu"); + } + + while ((dent = readdir(dir))) { + if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, "..")) + continue; + if (is_pmu_core(dent->d_name)) { + result = strdup(dent->d_name); + break; + } + } + + closedir(dir); + return result ?: strdup("cpu"); +} + struct perf_pmu *evsel__find_pmu(const struct evsel *evsel) { struct perf_pmu *pmu = evsel->pmu; |