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Commit 5f9468ce authored by Mathieu Desnoyers's avatar Mathieu Desnoyers Committed by Linus Torvalds
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Linux Kernel Markers: document format string 



Describes the format string standard further: Use of field names before the
type specifiers..

Signed-off-by: default avatarMathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 314de8a9

Documentation/markers.txt

+4 −2
Original line number Diff line number Diff line
@@ -35,12 +35,14 @@ In order to use the macro trace_mark, you should include linux/marker.h. 


And,



trace_mark(subsystem_event, "%d %s", someint, somestring);

trace_mark(subsystem_event, "myint %d mystring %s", someint, somestring);

Where :

- subsystem_event is an identifier unique to your event

    - subsystem is the name of your subsystem.

    - event is the name of the event to mark.

- "%d %s" is the formatted string for the serializer.

- "myint %d mystring %s" is the formatted string for the serializer. "myint" and

  "mystring" are repectively the field names associated with the first and

  second parameter.

- someint is an integer.

- somestring is a char pointer.