diff options
Diffstat (limited to 'tools/perf/util/util.c')
-rw-r--r-- | tools/perf/util/util.c | 56 |
1 files changed, 4 insertions, 52 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index f7adf1203df1..d33c34196a5a 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -34,6 +34,7 @@ bool test_attr__enabled; bool perf_host = true; bool perf_guest = false; +char tracing_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing"; char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events"; void event_attr_init(struct perf_event_attr *attr) @@ -391,6 +392,8 @@ void set_term_quiet_input(struct termios *old) static void set_tracing_events_path(const char *tracing, const char *mountpoint) { + snprintf(tracing_path, sizeof(tracing_path), "%s/%s", + mountpoint, tracing); snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s%s", mountpoint, tracing, "events"); } @@ -440,62 +443,11 @@ void perf_debugfs_set_path(const char *mntpt) set_tracing_events_path("tracing/", mntpt); } -static const char *find_tracefs(void) -{ - const char *path = __perf_tracefs_mount(NULL); - - return path; -} - -static const char *find_debugfs(void) -{ - const char *path = __perf_debugfs_mount(NULL); - - if (!path) - fprintf(stderr, "Your kernel does not support the debugfs filesystem"); - - return path; -} - -/* - * Finds the path to the debugfs/tracing - * Allocates the string and stores it. - */ -const char *find_tracing_dir(void) -{ - const char *tracing_dir = ""; - static char *tracing; - static int tracing_found; - const char *debugfs; - - if (tracing_found) - return tracing; - - debugfs = find_tracefs(); - if (!debugfs) { - tracing_dir = "/tracing"; - debugfs = find_debugfs(); - if (!debugfs) - return NULL; - } - - if (asprintf(&tracing, "%s%s", debugfs, tracing_dir) < 0) - return NULL; - - tracing_found = 1; - return tracing; -} - char *get_tracing_file(const char *name) { - const char *tracing; char *file; - tracing = find_tracing_dir(); - if (!tracing) - return NULL; - - if (asprintf(&file, "%s/%s", tracing, name) < 0) + if (asprintf(&file, "%s/%s", tracing_path, name) < 0) return NULL; return file; |