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From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Wed, 14 Jun 2017 10:30:08 +0900
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Subject: Re: [PATCH v2 0/4] x86: stack alignment for boot code and clang
To: Matthias Kaehlcke <mka@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        "H . Peter Anvin" <hpa@zytor.com>, "H . J . Lu" <hjl.tools@gmail.com>,
        David Woodhouse <dwmw2@infradead.org>, Michal Marek <mmarek@suse.com>,
        X86 ML <x86@kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Michael Davidson <md@google.com>, Greg Hackmann <ghackmann@google.com>,
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        Stephen Hines <srhines@google.com>, Kees Cook <keescook@chromium.org>,
        Arnd Bergmann <arnd@arndb.de>,
        =?UTF-8?Q?Bernhard_Rosenkr=C3=A4nzer?= 
        <Bernhard.Rosenkranzer@linaro.org>,
        Peter Foley <pefoley2@pefoley.com>,
        Behan Webster <behanw@converseincode.com>,
        Douglas Anderson <dianders@chromium.org>
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2017-06-14 8:08 GMT+09:00 Matthias Kaehlcke <mka@chromium.org>:
> This series fixes an issue with the stack of the x86 boot code not
> being aligned as intended. Further it adapts the Makefile to account
> for the fact that clang uses a different option to configure the
> stack alignment than gcc (-mstack-alignment=N vs
> -mpreferred-stack-boundary=N)
>
> Collaterally the series adds the new kbuild macros cc-option-raw and
> hostcc-option, it also reworks cc-option to make use of cc-option-raw.
>
> Matthias Kaehlcke (4):
>   kbuild: Add cc-option-raw macro
>   kbuild: Add hostcc-option macro
>   x86/build: Use cc-option-raw for boot code compiler options
>   x86/build: Specify stack alignment for clang
>
>  Makefile               |  2 +-
>  arch/x86/Makefile      | 33 +++++++++++++++++++++++++--------
>  scripts/Kbuild.include | 13 +++++++++++--
>  3 files changed, 37 insertions(+), 11 deletions(-)


I gave Acked-by to 1/4 and 2/4
so that the whole series can go to x86 tree.

Thanks!

-- 
Best Regards
Masahiro Yamada