linux-kernel - Re: [PATCH v2] arm64: vdso32: Allow ld.lld to properly link the VDSO

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Date:   Mon, 26 Oct 2020 14:22:06 +0000
From:   Will Deacon <will@...nel.org>
To:     Catalin Marinas <catalin.marinas@....com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nathan Chancellor <natechancellor@...il.com>
Cc:     kernel-team@...roid.com, Will Deacon <will@...nel.org>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        clang-built-linux@...glegroups.com,
        linux-arm-kernel@...ts.infradead.org, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: Re: [PATCH v2] arm64: vdso32: Allow ld.lld to properly link the VDSO

On Mon, 19 Oct 2020 18:14:07 -0700, Nathan Chancellor wrote:
> As it stands now, the vdso32 Makefile hardcodes the linker to ld.bfd
> using -fuse-ld=bfd with $(CC). This was taken from the arm vDSO
> Makefile, as the comment notes, done in commit d2b30cd4b722 ("ARM:
> 8384/1: VDSO: force use of BFD linker").
> 
> Commit fe00e50b2db8 ("ARM: 8858/1: vdso: use $(LD) instead of $(CC) to
> link VDSO") changed that Makefile to use $(LD) directly instead of
> through $(CC), which matches how the rest of the kernel operates. Since
> then, LD=ld.lld means that the arm vDSO will be linked with ld.lld,
> which has shown no problems so far.
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: vdso32: Allow ld.lld to properly link the VDSO
      https://git.kernel.org/arm64/c/0fa97e9403c7

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev