linux-kernel - Re: [PATCH v2 1/1] x86/Makefile: make -stack-alignment conditional on LLD

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Message-Id: <162336538453.1311648.12615336165738957417.b4-ty@chromium.org>
Date:   Thu, 10 Jun 2021 15:49:47 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Nathan Chancellor <nathan@...nel.org>,
        "ndesaulniers@...gle.com" <ndesaulniers@...gle.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        Tor Vic <torvic9@...lbox.org>,
        "mingo@...hat.com" <mingo@...hat.com>
Cc:     Kees Cook <keescook@...omium.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "clang-built-linux@...glegroups.com" 
        <clang-built-linux@...glegroups.com>
Subject: Re: [PATCH v2 1/1] x86/Makefile: make -stack-alignment conditional on LLD < 13.0.0

On Thu, 10 Jun 2021 20:58:06 +0000, Tor Vic wrote:
> Since LLVM commit 3787ee4, the '-stack-alignment' flag has been dropped
> [1], leading to the following error message when building a LTO kernel
> with Clang-13 and LLD-13:
> 
>     ld.lld: error: -plugin-opt=-: ld.lld: Unknown command line argument
>     '-stack-alignment=8'.  Try 'ld.lld --help'
>     ld.lld: Did you mean '--stackrealign=8'?
> 
> [...]

Applied to for-next/clang/features, thanks!

[1/1] x86/Makefile: make -stack-alignment conditional on LLD < 13.0.0
      https://git.kernel.org/kees/c/e6c00f0b33ad

-- 
Kees Cook