linux-kernel - Re: [PATCH] x86/build: Raise the minimum LLVM version to 15.0.0

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Message-ID: <CAMzpN2gnYM8VhmHafBmh5+6+WWH+caWoMTssud_+H2_GvGbGzw@mail.gmail.com>
Date: Fri, 21 Feb 2025 05:43:59 -0500
From: Brian Gerst <brgerst@...il.com>
To: Nathan Chancellor <nathan@...nel.org>
Cc: Ingo Molnar <mingo@...nel.org>, x86@...nel.org, 
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>, Bill Wendling <morbo@...gle.com>, 
	Justin Stitt <justinstitt@...gle.com>, Ard Biesheuvel <ardb@...nel.org>, 
	Uros Bizjak <ubizjak@...il.com>, linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH] x86/build: Raise the minimum LLVM version to 15.0.0

On Thu, Feb 20, 2025 at 3:08 PM Nathan Chancellor <nathan@...nel.org> wrote:
>
> In a similar vein as commit a3e8fe814ad1 ("x86/build: Raise the minimum
> GCC version to 8.1"), bump the minimum supported version of LLVM for
> building x86 kernels to 15.0.0, as that is the first version that has
> support for '-mstack-protector-guard-symbol', which is used
> unconditionally after commit 80d47defddc0 ("x86/stackprotector/64:
> Convert to normal per-CPU variable"):
>
>   clang-14: error: unknown argument: '-mstack-protector-guard-symbol=__ref_stack_chk_guard'
>
> Fixes: 80d47defddc0 ("x86/stackprotector/64: Convert to normal per-CPU variable")
> Link: https://github.com/llvm/llvm-project/commit/efbaad1c4a526e91b034e56386e98a9268cd87b2
> Signed-off-by: Nathan Chancellor <nathan@...nel.org>
> ---
>  scripts/min-tool-version.sh | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>

Reviewed-by: Brian Gerst <brgerst@...il.com>