diff options
Diffstat (limited to 'tools/lib/api/fs/tracing_path.c')
| -rw-r--r-- | tools/lib/api/fs/tracing_path.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/tools/lib/api/fs/tracing_path.c b/tools/lib/api/fs/tracing_path.c index 38aca2dd1946..0406a7d5c891 100644 --- a/tools/lib/api/fs/tracing_path.c +++ b/tools/lib/api/fs/tracing_path.c @@ -12,12 +12,14 @@ #include "tracing_path.h" +char tracing_mnt[PATH_MAX + 1] = "/sys/kernel/debug"; char tracing_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing"; char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events"; static void __tracing_path_set(const char *tracing, const char *mountpoint) { + snprintf(tracing_mnt, sizeof(tracing_mnt), "%s", mountpoint); snprintf(tracing_path, sizeof(tracing_path), "%s/%s", mountpoint, tracing); snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s%s", @@ -109,19 +111,10 @@ static int strerror_open(int err, char *buf, size_t size, const char *filename) "Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'"); break; case EACCES: { - const char *mountpoint = debugfs__mountpoint(); - - if (!access(mountpoint, R_OK) && strncmp(filename, "tracing/", 8) == 0) { - const char *tracefs_mntpoint = tracefs__mountpoint(); - - if (tracefs_mntpoint) - mountpoint = tracefs__mountpoint(); - } - snprintf(buf, size, "Error:\tNo permissions to read %s/%s\n" "Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n", - tracing_events_path, filename, mountpoint); + tracing_events_path, filename, tracing_mnt); } break; default: |