linux-kernel - Re: [PATCH v2 2/2] powerpc/boot: Set target when cross-compiling for clang

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Message-ID: <CAKwvOd=Sck9MMyq4sBe24iNbcVd=KX7enfxN=+Y7uvL-YrxHrg@mail.gmail.com>
Date:   Mon, 12 Nov 2018 11:03:11 -0800
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     joel@....id.au
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        mpe@...erman.id.au, Michal Marek <michal.lkml@...kovi.net>,
        dja@...ens.net,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v2 2/2] powerpc/boot: Set target when cross-compiling for clang

On Sun, Nov 11, 2018 at 8:21 PM Joel Stanley <joel@....id.au> wrote:
>
> Clang needs to be told which target it is building for when cross
> compiling.

Neat! This will help us for continuous integration.
https://github.com/ClangBuiltLinux/continuous-integration

>
> Link: https://github.com/ClangBuiltLinux/linux/issues/259
> Signed-off-by: Joel Stanley <joel@....id.au>

Assuming patch 1/2 gets fixed up (or is fine) and doesn't radically change:
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>

> ---
>  arch/powerpc/boot/Makefile | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
> index 39354365f54a..111f97b1ccec 100644
> --- a/arch/powerpc/boot/Makefile
> +++ b/arch/powerpc/boot/Makefile
> @@ -55,6 +55,11 @@ BOOTAFLAGS   := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
>
>  BOOTARFLAGS    := -cr$(KBUILD_ARFLAGS)
>
> +ifdef CONFIG_CC_IS_CLANG
> +BOOTCFLAGS += $(CLANG_FLAGS)
> +BOOTAFLAGS += $(CLANG_FLAGS)
> +endif
> +
>  ifdef CONFIG_DEBUG_INFO
>  BOOTCFLAGS     += -g
>  endif
> --
> 2.19.1
>


-- 
Thanks,
~Nick Desaulniers