Re: [RFC/RFT 0/3] Add compiler support for Control Flow Integrity

Dan Li
2023-02-10T16:20:47Z

On 02/08, Peter Collingbourne wrote:
> On Sun, Dec 18, 2022 at 10:06 PM Dan Li <ashimida.1990@gmail.com> wrote:
> >
> > This series of patches is mainly used to support the control flow
> > integrity protection of the linux kernel [1], which is similar to
> > -fsanitize=kcfi in clang 16.0 [2,3].
> >
> > I hope that this feature will also support user-mode CFI in the
> > future (at least for developers who can recompile the runtime),
> > so I use -fsanitize=cfi as a compilation option here.
>
> Please don't. The various CFI-related build flags are confusing enough
> without also having this inconsistency between Clang and GCC.

Hi Peter,

Got it, as discussed before[1], in the next version I will use the same
compile option.

[1]. https://patchwork.kernel.org/project/linux-arm-kernel/patch/20221219061758.23321-1-ashimida.1990@gmail.com/

Thanks,
Dan.

>
> Peter