linux-kernel - Re: [PATCH v3] arm64: vdso32: drop -no-integrated-as flag

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Message-ID: <20210422103603.GB1442@willie-the-truck>
Date:   Thu, 22 Apr 2021 11:36:03 +0100
From:   Will Deacon <will@...nel.org>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        vincenzo.frascino@....com, Nathan Chancellor <nathan@...nel.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        clang-built-linux@...glegroups.com
Subject: Re: [PATCH v3] arm64: vdso32: drop -no-integrated-as flag

On Tue, Apr 20, 2021 at 10:44:25AM -0700, Nick Desaulniers wrote:
> Clang can assemble these files just fine; this is a relic from the top
> level Makefile conditionally adding this. We no longer need --prefix,
> --gcc-toolchain, or -Qunused-arguments flags either with this change, so
> remove those too.
> 
> To test building:
> $ ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- \
>   CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make LLVM=1 LLVM_IAS=1 \
>   defconfig arch/arm64/kernel/vdso32/
> 
> Suggested-by: Nathan Chancellor <nathan@...nel.org>
> Signed-off-by: Nick Desaulniers <ndesaulniers@...gle.com>
> Reviewed-by: Nathan Chancellor <nathan@...nel.org>
> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@....com>
> ---

Acked-by: Will Deacon <will@...nel.org>

Will