On Thu, Sep 28, 2023 at 6:21 PM Masami Hiramatsu [off-list ref] wrote:

Thus, what I need is to make fprobe to use function-graph tracer's shadow
stack and trampoline instead of rethook. This may need to generalize its
interface so that we can share it between fprobe and function-graph tracer,
but we don't need to involve rethook and kretprobes anymore.

...

And need to add patches

 - Introduce a generized function exit hook interface for ftrace.
 - Replace rethook in fprobe with the function exit hook interface.

you mean that rethook will be removed after that?