Add a description of the %return suffix option for kprobe tracer. Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx> --- Documentation/trace/kprobetrace.rst | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/trace/kprobetrace.rst b/Documentation/trace/kprobetrace.rst index c1709165c553..d29d1f9e6721 100644 --- a/Documentation/trace/kprobetrace.rst +++ b/Documentation/trace/kprobetrace.rst @@ -30,6 +30,7 @@ Synopsis of kprobe_events p[:[GRP/]EVENT] [MOD:]SYM[+offs]|MEMADDR [FETCHARGS] : Set a probe r[MAXACTIVE][:[GRP/]EVENT] [MOD:]SYM[+0] [FETCHARGS] : Set a return probe + p:[GRP/]EVENT] [MOD:]SYM[+0]%return [FETCHARGS] : Set a return probe -:[GRP/]EVENT : Clear a probe GRP : Group name. If omitted, use "kprobes" for it. @@ -37,6 +38,7 @@ Synopsis of kprobe_events based on SYM+offs or MEMADDR. MOD : Module name which has given SYM. SYM[+offs] : Symbol+offset where the probe is inserted. + SYM%return : Return address of the symbol MEMADDR : Address where the probe is inserted. MAXACTIVE : Maximum number of instances of the specified function that can be probed simultaneously, or 0 for the default value
