Re: [PATCH v3 18/39] x86/ibt,ftrace: Make function-graph play nice
From: Josh Poimboeuf
Date: Fri Mar 04 2022 - 12:52:21 EST
On Thu, Mar 03, 2022 at 12:23:39PM +0100, Peter Zijlstra wrote:
> +
> + addq $16, %rsp
> + ANNOTATE_INTRA_FUNCTION_CALL
> + call .Ldo_rop
> + int3
> +.Ldo_rop:
> + mov %rdi, (%rsp)
> + UNWIND_HINT_FUNC
> + RET
Why the int3?
--
Josh