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Re: [PATCH v2 1/4] kbuild: Add cc-option-raw macro

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On Wed, Jun 14, 2017 at 3:27 AM, Masahiro Yamada
<yamada.masahiro@socionext.com> wrote:
> 2017-06-14 8:08 GMT+09:00 Matthias Kaehlcke <mka@chromium.org>:
>> cc-option uses KBUILD_CFLAGS and KBUILD_CPPFLAGS when it determines
>> whether an option is supported or not. This is fine for options used to
>> build the kernel itself, however some components like the x86 boot code
>> use a different set of flags.
>>
>> Add the new macro cc-option-raw which serves the same purpose as
>> cc-option but has additional parameters. One parameter is the compiler
>> with which the check should be performed, the other the compiler options
>> to be used instead KBUILD_C*FLAGS. The compiler parameter allows other
>> macros like hostcc-option to be implemented on top of cc-option-raw.
>>
>> Also rework cc-option to make use of cc-option-raw.
>>
>> Suggested-by: Arnd Bergmann <arnd@arndb.de>
>> Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
>> Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
>> ---
>> Changes in v2:
>> - Changed macro name from Add cc-option-no-kbuild to cc-option-raw
>> - Added compiler as parameter to the macro
>> - Reworked cc-option to make use of cc-option-raw
>> - Updated commit message
>>
>>  scripts/Kbuild.include | 9 +++++++--
>>  1 file changed, 7 insertions(+), 2 deletions(-)
>>
>
> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> (if nothing better pops up)

Acked-by: Arnd Bergmann <arnd@arndb.de>

Regarding the naming, __cc-option might be better than cc-option-raw,
but the current version is fine too.

          Arnd

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[PATCH v2 0/4] x86: stack alignment for boot code and clang Matthias Kaehlcke <mka@chromium.org> - 2017-06-14 01:20 +0200
  [PATCH v2 3/4] x86/build: Use cc-option-raw for boot code compiler options Matthias Kaehlcke <mka@chromium.org> - 2017-06-14 01:20 +0200
  [PATCH v2 2/4] kbuild: Add hostcc-option macro Matthias Kaehlcke <mka@chromium.org> - 2017-06-14 01:20 +0200
    Re: [PATCH v2 2/4] kbuild: Add hostcc-option macro Masahiro Yamada <yamada.masahiro@socionext.com> - 2017-06-14 03:30 +0200
    Re: [PATCH v2 2/4] kbuild: Add hostcc-option macro Arnd Bergmann <arnd@arndb.de> - 2017-06-14 09:30 +0200
      Re: [PATCH v2 2/4] kbuild: Add hostcc-option macro Masahiro Yamada <yamada.masahiro@socionext.com> - 2017-06-14 09:50 +0200
  [PATCH v2 4/4] x86/build: Specify stack alignment for clang Matthias Kaehlcke <mka@chromium.org> - 2017-06-14 01:20 +0200
  [PATCH v2 1/4] kbuild: Add cc-option-raw macro Matthias Kaehlcke <mka@chromium.org> - 2017-06-14 01:20 +0200
    Re: [PATCH v2 1/4] kbuild: Add cc-option-raw macro Masahiro Yamada <yamada.masahiro@socionext.com> - 2017-06-14 03:30 +0200
      Re: [PATCH v2 1/4] kbuild: Add cc-option-raw macro Arnd Bergmann <arnd@arndb.de> - 2017-06-14 09:40 +0200
        Re: [PATCH v2 1/4] kbuild: Add cc-option-raw macro Masahiro Yamada <yamada.masahiro@socionext.com> - 2017-06-14 09:50 +0200
        Re: [PATCH v2 1/4] kbuild: Add cc-option-raw macro Michal Marek <mmarek@suse.com> - 2017-06-14 10:40 +0200
          Re: [PATCH v2 1/4] kbuild: Add cc-option-raw macro Matthias Kaehlcke <mka@chromium.org> - 2017-06-14 18:50 +0200
  Re: [PATCH v2 0/4] x86: stack alignment for boot code and clang Masahiro Yamada <yamada.masahiro@socionext.com> - 2017-06-14 03:40 +0200

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