[PATCH v2 2/2] kbuild: Disable CONFIG_LD_ORPHAN_WARN for ld.lld 10.0.1

[Kees Cook]

On Thu, Nov 19, 2020 at 01:13:27PM -0800, Nick Desaulniers wrote:
> On Thu, Nov 19, 2020 at 12:57 PM Nathan Chancellor
> <natechancellor at gmail.com> wrote:
> >
> > ld.lld 10.0.1 spews a bunch of various warnings about .rela sections,
> > along with a few others. Newer versions of ld.lld do not have these
> > warnings. As a result, do not add '--orphan-handling=warn' to
> > LDFLAGS_vmlinux if ld.lld's version is not new enough.
> >
> > Link: https://github.com/ClangBuiltLinux/linux/issues/1187
> > Link: https://github.com/ClangBuiltLinux/linux/issues/1193
> > Reported-by: Arvind Sankar <nivedita at alum.mit.edu>
> > Reported-by: kernelci.org bot <bot at kernelci.org>
> > Reported-by: Mark Brown <broonie at kernel.org>
> > Reviewed-by: Kees Cook <keescook at chromium.org>
> > Signed-off-by: Nathan Chancellor <natechancellor at gmail.com>
> 
> Thanks for the additions in v2.
> Reviewed-by: Nick Desaulniers <ndesaulniers at google.com>

I'm going to carry this for a few days in -next, and if no one screams,
ask Linus to pull it for v5.10-rc6.

Thanks!

-- 
Kees Cook