diff options
Diffstat (limited to 'Documentation/trace/kprobetrace.rst')
| -rw-r--r-- | Documentation/trace/kprobetrace.rst | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/trace/kprobetrace.rst b/Documentation/trace/kprobetrace.rst index 3e0f971b12de..8bfc75c90806 100644 --- a/Documentation/trace/kprobetrace.rst +++ b/Documentation/trace/kprobetrace.rst @@ -18,7 +18,7 @@ To enable this feature, build your kernel with CONFIG_KPROBE_EVENTS=y. Similar to the events tracer, this doesn't need to be activated via current_tracer. Instead of that, add probe points via /sys/kernel/debug/tracing/kprobe_events, and enable it via -/sys/kernel/debug/tracing/events/kprobes/<EVENT>/enabled. +/sys/kernel/debug/tracing/events/kprobes/<EVENT>/enable. Synopsis of kprobe_events @@ -81,9 +81,9 @@ Per-probe event filtering feature allows you to set different filter on each probe and gives you what arguments will be shown in trace buffer. If an event name is specified right after 'p:' or 'r:' in kprobe_events, it adds an event under tracing/events/kprobes/<EVENT>, at the directory you can see 'id', -'enabled', 'format' and 'filter'. +'enable', 'format', 'filter' and 'trigger'. -enabled: +enable: You can enable/disable the probe by writing 1 or 0 on it. format: @@ -95,6 +95,9 @@ filter: id: This shows the id of this probe event. +trigger: + This allows to install trigger commands which are executed when the event is + hit (for details, see Documentation/trace/events.rst, section 6). Event Profiling --------------- |