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| author | Li Zefan <lizf@cn.fujitsu.com> | 2009-08-19 15:54:51 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-19 15:02:24 +0200 |
| commit | 540b7b8d65575c80162f2a0f38e1d313c92a6042 (patch) | |
| tree | 664bdd01ce8fce990e634a304f9b3ab51e50970c /include/linux/ftrace_event.h | |
| parent | e647d6b314266adb904d4b84973eda0afa856946 (diff) | |
| download | lwn-540b7b8d65575c80162f2a0f38e1d313c92a6042.tar.gz lwn-540b7b8d65575c80162f2a0f38e1d313c92a6042.zip | |
tracing/syscalls: Add filtering support
Add filtering support for syscall events:
# echo 'mode == 0666' > events/syscalls/sys_enter_open
# echo 'ret == 0' > events/syscalls/sys_exit_open
# echo 1 > events/syscalls/sys_enter_open
# echo 1 > events/syscalls/sys_exit_open
# cat trace
...
modprobe-3084 [001] 117.463140: sys_open(filename: 917d3e8, flags: 0, mode: 1b6)
modprobe-3084 [001] 117.463176: sys_open -> 0x0
less-3086 [001] 117.510455: sys_open(filename: 9c6bdb8, flags: 8000, mode: 1b6)
sendmail-2574 [001] 122.145840: sys_open(filename: b807a365, flags: 0, mode: 1b6)
...
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4A8BAFCB.1040006@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/ftrace_event.h')
| -rw-r--r-- | include/linux/ftrace_event.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index 427cbae47f84..df5b085c4150 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -140,8 +140,9 @@ extern int filter_current_check_discard(struct ftrace_event_call *call, void *rec, struct ring_buffer_event *event); -extern int trace_define_field(struct ftrace_event_call *call, char *type, - char *name, int offset, int size, int is_signed); +extern int trace_define_field(struct ftrace_event_call *call, + const char *type, const char *name, + int offset, int size, int is_signed); extern int trace_define_common_fields(struct ftrace_event_call *call); #define is_signed_type(type) (((type)(-1)) < 0) |