linux-kernel - Re: [PATCH 4/4] gcov: clang: pick GCC vs Clang format depending on compiler

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Message-ID: <CAKwvOd=RD0UgRo4WXKzBQ84q1P3Xmreb58_dfxLLYBoqHSStLA@mail.gmail.com>
Date:   Mon, 14 Jan 2019 13:11:52 -0800
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Tri Vo <trong@...roid.com>
Cc:     oberpar@...ux.ibm.com, ghackmann@...roid.com,
        LKML <linux-kernel@...r.kernel.org>, kernel-team@...roid.com,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Subject: Re: [PATCH 4/4] gcov: clang: pick GCC vs Clang format depending on compiler

On Mon, Jan 14, 2019 at 1:05 PM Tri Vo <trong@...roid.com> wrote:
>
> Clang gcov format is only supported by Clang compiler, and Clang
> compiler only supports Clang format.
>
> We set gcov format to depend on which compiler (GCC or Clang) is used.
>
> Automatic format detection behavior is preserved because:
> If GCC is used, one of the GCC gcov formats is selected.
> If Clang is used, Clang gcov format is selected.
>
> Signed-off-by: Tri Vo <trong@...roid.com>

Thanks for sending the series Tri.  I think this config change on the
end is a nice little touch!
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>

> ---
>  kernel/gcov/Kconfig | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig
> index eb428e570923..37ec551d4039 100644
> --- a/kernel/gcov/Kconfig
> +++ b/kernel/gcov/Kconfig
> @@ -60,6 +60,8 @@ choice
>         In such a case, change this option to adjust the format used in the
>         kernel accordingly.
>
> +       Select Clang gcov format if building with Clang compiler.
> +
>  config GCOV_FORMAT_3_4
>         bool "GCC 3.4 format"
>         depends on CC_IS_GCC && GCC_VERSION < 40700
> @@ -68,11 +70,13 @@ config GCOV_FORMAT_3_4
>
>  config GCOV_FORMAT_4_7
>         bool "GCC 4.7 format"
> +       depends on CC_IS_GCC
>         ---help---
>         Select this option to use the format defined by GCC 4.7.
>
>  config GCOV_FORMAT_CLANG
>         bool "Clang format"
> +       depends on CC_IS_CLANG
>         ---help---
>         Select this option to use the format defined by Clang.
>
> --
> 2.20.1.97.g81188d93c3-goog
>


-- 
Thanks,
~Nick Desaulniers