Messages in this thread Patch in this message | | | From | renhai_lenovo <> | Date | Tue, 31 Oct 2023 10:45:54 +0800 | Subject | Update objtrace usage in Documentation/trace/events.rst |
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Documentation: trace/objtrace: Move the line entering the trace directory to the first step, so that the commands in the first step can be executed smoothly.
Signed-off-by: Renhai <rh_king@163.com>
diff --git a/Documentation/trace/events.rst b/Documentation/trace/events.rst index 52ac8ca8ab64..d5fadf7966de 100644 --- a/Documentation/trace/events.rst +++ b/Documentation/trace/events.rst @@ -583,6 +583,7 @@ The following commands are supported:
.. code-block::
+ # cd /sys/kernel/debug/tracing/ # echo 'p bio_add_page arg1=$arg1' > ./kprobe_events
Secondly, we can get the value dynamically based on the object: @@ -597,7 +598,6 @@ The following commands are supported: # echo 'objtrace:add:arg1,0x28:u32:1 if comm == "cat"' > ./events/kprobes/ \ p_bio_add_page_0/trigger
- # cd /sys/kernel/debug/tracing/ # echo 'p bio_add_page arg1=$arg1' > ./kprobe_events # echo 'objtrace:add:arg1,0x28:u32:1 if comm == "cat"' > ./events/kprobes/p_bio_add_page_0/trigger
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