Commit e50891d6 authored by Andreas Ziegler's avatar Andreas Ziegler Committed by Jonathan Corbet
Browse files

Documentation: {u,k}probes: fix filename for event enabling 



The per-event files to enable or disable kprobes and uprobes
are named 'enable', not 'enabled'. Fix the corresponding
documentation.

Signed-off-by: default avatarAndreas Ziegler <andreas.ziegler@fau.de>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 655c75a2

Documentation/trace/kprobetrace.rst

+3 −3
Original line number Diff line number Diff line
@@ -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' and 'filter'.



enabled:

enable:

  You can enable/disable the probe by writing 1 or 0 on it.



format:

Documentation/trace/uprobetracer.rst

+1 −1
Original line number Diff line number Diff line
@@ -13,7 +13,7 @@ To enable this feature, build your kernel with CONFIG_UPROBE_EVENTS=y. 
Similar to the kprobe-event tracer, this doesn't need to be activated via

current_tracer. Instead of that, add probe points via

/sys/kernel/debug/tracing/uprobe_events, and enable it via

/sys/kernel/debug/tracing/events/uprobes/<EVENT>/enabled.

/sys/kernel/debug/tracing/events/uprobes/<EVENT>/enable.



However unlike kprobe-event tracer, the uprobe event interface expects the

user to calculate the offset of the probepoint in the object.

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