Messages in this thread Patch in this message | | | Subject | [PATCH -v2] perf: Don't list tracepoints without an id | From | Peter Zijlstra <> | Date | Thu, 06 Aug 2009 16:48:54 +0200 |
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Stop perf list from displaying tracepoints without an id file.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> --- tools/perf/util/parse-events.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-)
Index: linux-2.6/tools/perf/util/parse-events.c =================================================================== --- linux-2.6.orig/tools/perf/util/parse-events.c +++ linux-2.6/tools/perf/util/parse-events.c @@ -121,13 +121,29 @@ static unsigned long hw_cache_stat[C(MAX (strcmp(sys_dirent.d_name, ".")) && \ (strcmp(sys_dirent.d_name, ".."))) +static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir) +{ + char evt_path[MAXPATHLEN]; + int fd; + + snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", debugfs_path, + sys_dir->d_name, evt_dir->d_name); + fd = open(evt_path, O_RDONLY); + if (fd < 0) + return -EINVAL; + close(fd); + + return 0; +} + #define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next, file, st) \ while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \ if (snprintf(file, MAXPATHLEN, "%s/%s/%s", debugfs_path, \ sys_dirent.d_name, evt_dirent.d_name) && \ (!stat(file, &st)) && (S_ISDIR(st.st_mode)) && \ (strcmp(evt_dirent.d_name, ".")) && \ - (strcmp(evt_dirent.d_name, ".."))) + (strcmp(evt_dirent.d_name, "..")) && \ + (!tp_event_has_id(&sys_dirent, &evt_dirent))) #define MAX_EVENT_LENGTH 30
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