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| author | Motohiro KOSAKI <kosaki.motohiro@jp.fujitsu.com> | 2010-01-18 21:35:12 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-01-20 07:18:15 +0100 |
| commit | df3ab708b787a2b35de5101452bd51d4a8ae0ded (patch) | |
| tree | 926bb3c653770e5f47c1b44f4f4b9e7b3026b963 /Documentation/trace | |
| parent | 580d9e00fdfb85e65c5097dcd739c6efcdbadc96 (diff) | |
| download | lwn-df3ab708b787a2b35de5101452bd51d4a8ae0ded.tar.gz lwn-df3ab708b787a2b35de5101452bd51d4a8ae0ded.zip | |
kprobetrace, doc: Add the explanation to remove probe points
Latest kprobetrace can remove probe points selectively, thus
the documentation should be updated too.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <20100119023512.31880.35535.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/trace')
| -rw-r--r-- | Documentation/trace/kprobetrace.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt index ab57f02e53bb..a9100b28eb84 100644 --- a/Documentation/trace/kprobetrace.txt +++ b/Documentation/trace/kprobetrace.txt @@ -24,6 +24,7 @@ Synopsis of kprobe_events ------------------------- p[:[GRP/]EVENT] SYMBOL[+offs]|MEMADDR [FETCHARGS] : Set a probe r[:[GRP/]EVENT] SYMBOL[+0] [FETCHARGS] : Set a return probe + -:[GRP/]EVENT : Clear a probe GRP : Group name. If omitted, use "kprobes" for it. EVENT : Event name. If omitted, the event name is generated @@ -122,6 +123,12 @@ REC->dfd, REC->filename, REC->flags, REC->mode This clears all probe points. + Or, + + echo -:myprobe >> kprobe_events + + This clears probe points selectively. + Right after definition, each event is disabled by default. For tracing these events, you need to enable it. |