diff options
| author | Masami Hiramatsu <mhiramat@kernel.org> | 2016-10-05 20:58:15 +0900 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2016-11-14 16:42:58 -0500 |
| commit | 60f1d5e3bac44b598f67d36062da96c095d2b700 (patch) | |
| tree | 87990c058f734d14b446e99772548971138e1192 /kernel/trace/trace.c | |
| parent | 546fece4eae871f033925ccf0ff2b740725ae915 (diff) | |
| download | linux-60f1d5e3bac44b598f67d36062da96c095d2b700.tar.gz | |
ftrace: Support full glob matching
Use glob_match() to support flexible glob wildcards (*,?) and character classes ([) for ftrace. Since the full glob matching is slower than the current partial matching routines(*pat, pat*, *pat*), this leaves those routines and just add MATCH_GLOB for complex glob expression. e.g. ---- [root@localhost tracing]# echo 'sched*group' > set_ftrace_filter [root@localhost tracing]# cat set_ftrace_filter sched_free_group sched_change_group sched_create_group sched_online_group sched_destroy_group sched_offline_group [root@localhost tracing]# echo '[Ss]y[Ss]_*' > set_ftrace_filter [root@localhost tracing]# head set_ftrace_filter sys_arch_prctl sys_rt_sigreturn sys_ioperm SyS_iopl sys_modify_ldt SyS_mmap SyS_set_thread_area SyS_get_thread_area SyS_set_tid_address sys_fork ---- Link: http://lkml.kernel.org/r/147566869501.29136.6462645009894738056.stgit@devbox Acked-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 8696ce6bf2f6..d904516dfdab 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4065,7 +4065,7 @@ static const char readme_msg[] = "\n available_filter_functions - list of functions that can be filtered on\n" " set_ftrace_filter\t- echo function name in here to only trace these\n" "\t\t\t functions\n" - "\t accepts: func_full_name, *func_end, func_begin*, *func_middle*\n" + "\t accepts: func_full_name or glob-matching-pattern\n" "\t modules: Can select a group via module\n" "\t Format: :mod:<module-name>\n" "\t example: echo :mod:ext3 > set_ftrace_filter\n" |