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authorMasami Hiramatsu <mhiramat@kernel.org>2020-09-10 11:55:56 +0300
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2020-09-22 04:06:03 +0300
commit638e476d1df6812fad0c700ee3e17727a4ff0d40 (patch)
tree4e3e54724bc0a16fee0105472f8a3e901f6c5ec3 /Documentation/trace/uprobetracer.rst
parent3dd3aae32dc91efab916b28cf95986186c6e8d6b (diff)
downloadlinux-638e476d1df6812fad0c700ee3e17727a4ff0d40.tar.xz
Documentation: tracing: Add %return suffix description
Add a description of the %return suffix option for kprobe event and uprobe event. Link: https://lkml.kernel.org/r/159972815624.428528.10450874184415697524.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'Documentation/trace/uprobetracer.rst')
-rw-r--r--Documentation/trace/uprobetracer.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/trace/uprobetracer.rst b/Documentation/trace/uprobetracer.rst
index 98cde99939d7..a8e5938f609e 100644
--- a/Documentation/trace/uprobetracer.rst
+++ b/Documentation/trace/uprobetracer.rst
@@ -28,6 +28,7 @@ Synopsis of uprobe_tracer
p[:[GRP/]EVENT] PATH:OFFSET [FETCHARGS] : Set a uprobe
r[:[GRP/]EVENT] PATH:OFFSET [FETCHARGS] : Set a return uprobe (uretprobe)
+ p[:[GRP/]EVENT] PATH:OFFSET%return [FETCHARGS] : Set a return uprobe (uretprobe)
-:[GRP/]EVENT : Clear uprobe or uretprobe event
GRP : Group name. If omitted, "uprobes" is the default value.
@@ -35,6 +36,7 @@ Synopsis of uprobe_tracer
on PATH+OFFSET.
PATH : Path to an executable or a library.
OFFSET : Offset where the probe is inserted.
+ OFFSET%return : Offset where the return probe is inserted.
FETCHARGS : Arguments. Each probe can have up to 128 args.
%REG : Fetch register REG