From: Nick Desaulniers <ndesaulniers@google.com>
To: Mark Brown <broonie@kernel.org>
Cc: Tri Vo <trong@google.com>,
Catalin Marinas <catalin.marinas@arm.com>,
clang-built-linux <clang-built-linux@googlegroups.com>,
Nathan Chancellor <natechancellor@gmail.com>,
Will Deacon <will@kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] arm64: Disable big endian builds with clang
Date: Tue, 6 Aug 2019 14:25:45 -0700 [thread overview]
Message-ID: <CAKwvOdkvFowCWP6cpKoMOz+EWojBXJWs3TzuTvn4180sVu4ayw@mail.gmail.com> (raw)
In-Reply-To: <20190806183918.41078-1-broonie@kernel.org>
On Tue, Aug 6, 2019 at 11:39 AM Mark Brown <broonie@kernel.org> wrote:
>
> Current boot tests with clang built big endian kernels in KernelCI are
> showing problems with the kernel being unable to interpret big endian
> userspace. This is a bug and should be fixed but for now let's prevent
> these kernels being built, we may end up needing to add a version
> dependency on the compiler anyway.
>
> Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://github.com/ClangBuiltLinux/linux/issues/628
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
> ---
>
> The clang people (CCed) are aware and looking into this.
>
> arch/arm64/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 990fdcbf05c7..1c32d9889e0f 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -813,6 +813,7 @@ config ARM64_PA_BITS
>
> config CPU_BIG_ENDIAN
> bool "Build big-endian kernel"
> + depends on !CC_IS_CLANG
> help
> Say Y if you plan on running a kernel in big-endian mode.
>
> --
> 2.20.1
>
--
Thanks,
~Nick Desaulniers
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next prev parent reply other threads:[~2019-08-06 21:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-06 18:39 [PATCH] arm64: Disable big endian builds with clang Mark Brown
2019-08-06 21:25 ` Nick Desaulniers [this message]
2019-08-06 23:47 ` Nick Desaulniers
2019-08-07 12:38 ` Mark Brown
2019-08-07 14:41 ` Robin Murphy
2019-08-07 16:01 ` Mark Brown
2019-08-07 13:01 ` Mark Rutland
2019-08-07 13:05 ` Mark Brown
2019-08-07 13:56 ` Mark Rutland
2019-08-07 14:14 ` Mark Rutland
2019-08-07 15:29 ` Mark Brown
2019-08-07 15:43 ` Mark Rutland
2019-08-07 16:19 ` Mark Brown
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