linux-hardening - Re: [PATCH 0/2] gcc-plugins: Explicitly document purpose and deprecation schedule

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Date:   Thu, 21 Oct 2021 12:28:09 +0200
From:   Ard Biesheuvel <ardb@...nel.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Dan Li <ashimida@...ux.alibaba.com>,
        Miguel Ojeda <ojeda@...nel.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Jonathan Corbet <corbet@....net>,
        James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-hardening@...r.kernel.org,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        linux-security-module@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH 0/2] gcc-plugins: Explicitly document purpose and
 deprecation schedule

On Wed, 20 Oct 2021 at 19:35, Kees Cook <keescook@...omium.org> wrote:
>
> Hi,
>
> GCC plugins should only exist when some compiler feature needs to be
> proven but does not exist in either GCC nor Clang. For example, if a
> desired feature is already in Clang, it should be added to GCC upstream.
> Document this explicitly.
>
> I'll put this in -next unless there are objections. :)
>
> Thanks!
>
> -Kees
>
>
> Kees Cook (2):
>   gcc-plugins: Explicitly document purpose and deprecation schedule
>   gcc-plugins: Remove cyc_complexity
>

Acked-by: Ard Biesheuvel <ardb@...nel.org>

>  Documentation/kbuild/gcc-plugins.rst        | 28 ++++++++-
>  scripts/Makefile.gcc-plugins                |  2 -
>  scripts/gcc-plugins/Kconfig                 | 20 +-----
>  scripts/gcc-plugins/cyc_complexity_plugin.c | 69 ---------------------
>  security/Kconfig.hardening                  |  9 ++-
>  5 files changed, 34 insertions(+), 94 deletions(-)
>  delete mode 100644 scripts/gcc-plugins/cyc_complexity_plugin.c
>
> --
> 2.30.2
>