Re: [PATCH v2 0/4] riscv: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION

From: Nick Desaulniers
Date: Fri Jun 23 2023 - 13:18:06 EST


On Thu, Jun 22, 2023 at 11:18:03PM +0000, Nathan Chancellor wrote:
> If you wanted to restrict it to just LD_IS_BFD in arch/riscv/Kconfig,
> that would be fine with me too.
>
> select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if LD_IS_BFD

Hi Jisheng, would you mind sending a v3 with the attached patch applied
on top / at the end of your series?

>
> Nick said he would work on a report for the LLVM side, so as long as
> this issue is handled in some way to avoid regressing LLD builds until
> it is resolved, I don't think there is anything else for the kernel to
> do. We like to have breadcrumbs via issue links, not sure if the report
> will be internal to Google or on LLVM's issue tracker though;
> regardless, we will have to touch this block to add a version check
> later, at which point we can add a link to the fix in LLD.

https://github.com/ClangBuiltLinux/linux/issues/1881