Re: [PATCH] x86: assemble with -Wa,--noexecstack to avoid BFD 2.39 warning

[Linus Torvalds]

On Mon, Aug 8, 2022 at 1:32 PM Nick Desaulniers <ndesaulniers@xxxxxxxxxx> wrote:
>
> Thanks for the link; I recall Ard mentioning the ELF segments are
> ignored by the kernels loader in another thread.

Yeah, the kernel loader is not some generic ELF loader thing.

> Perhaps we should be adding
> --no-warn-execstack
> wrapped in an ld-option check to KBUILD_LDFLAGS at the top level?

I think both the linker flag and the assembler flag are the "correct"
thing to do.

And yes, I don't think there is anything architecture-specific about
it, and the top-level Makefile is likely the right thing to modify.

I'm a tiny bit worried about "what versions of as/ld accept those
flags", though.

              Linus