Re: [PATCH v5 0/3] x86: stack alignment for boot code and clang

From	Masahiro Yamada <yamada.masahiro@socionext.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v5 0/3] x86: stack alignment for boot code and clang
Date	2017-06-25 06:10 +0200
Message-ID	<tW722-eq-11@gated-at.bofh.it> (permalink)
References	<tUXep-4FF-3@gated-at.bofh.it> <tV682-2hR-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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2017-06-22 17:58 GMT+09:00 Ingo Molnar <mingo@kernel.org>:
>
> * Matthias Kaehlcke <mka@chromium.org> wrote:
>
>> 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 macro __cc-option and
>> refactors the macros cc-option and hostcc-option to make use of
>> __cc-option.
>>
>> Matthias Kaehlcke (3):
>>   kbuild: Add __cc-option macro
>>   x86/build: Use __cc-option for boot code compiler options
>>   x86/build: Specify stack alignment for clang
>>
>>  Makefile               |  2 +-
>>  arch/x86/Makefile      | 33 +++++++++++++++++++++++++--------
>>  scripts/Kbuild.include | 14 ++++++++++++--
>>  scripts/Makefile.host  |  6 ------
>>  4 files changed, 38 insertions(+), 17 deletions(-)
>
> So given that there are non-trivial kbuild changes here, I'd suggest these patches
> might have a better home in the kbuild tree. For the x86 bits:
>
> Acked-by: Ingo Molnar <mingo@kernel.org>
>
> Thanks,
>
>         Ingo
> --
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Series applied to linux-kbuild/kbuild.




-- 
Best Regards
Masahiro Yamada

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[PATCH v5 0/3] x86: stack alignment for boot code and clang Matthias Kaehlcke <mka@chromium.org> - 2017-06-22 01:30 +0200
  [PATCH v5 1/3] kbuild: Add __cc-option macro Matthias Kaehlcke <mka@chromium.org> - 2017-06-22 01:30 +0200
  Re: [PATCH v5 0/3] x86: stack alignment for boot code and clang Ingo Molnar <mingo@kernel.org> - 2017-06-22 11:00 +0200
    Re: [PATCH v5 0/3] x86: stack alignment for boot code and clang Masahiro Yamada <yamada.masahiro@socionext.com> - 2017-06-25 06:10 +0200

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