Re: [PATCH -tip v7 10/13] x86/kprobes: Push a fake return address at kretprobe_trampoline

[Josh Poimboeuf]

On Thu, May 27, 2021 at 03:40:39PM +0900, Masami Hiramatsu wrote:
> This changes x86/kretprobe stack frame on kretprobe_trampoline
> a bit, which now push the kretprobe_trampoline as a fake return
> address at the bottom of the stack frame. With this fix, the ORC
> unwinder will see the kretprobe_trampoline as a return address.
> 
> Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> Suggested-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
> Tested-by: Andrii Nakryik <andrii@xxxxxxxxxx>

Acked-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>

-- 
Josh