linux-kernel - Re: [PATCH] Documentation/llvm: add Chimera Linux, Google and Meta datacenters

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Message-ID: <CA+icZUVFjpZBL-kNJFkU+-L_23DuErcFKMhsquNmMSwFS+eEWA@mail.gmail.com>
Date:   Thu, 2 Feb 2023 00:28:10 +0100
From:   Sedat Dilek <sedat.dilek@...il.com>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Tom Rix <trix@...hat.com>, Nicolas Schier <nicolas@...sle.eu>,
        Jonathan Corbet <corbet@....net>, llvm@...ts.linux.dev,
        linux-kbuild@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, Bill Wendling <morbo@...gle.com>,
        Yonghong Song <yhs@...com>,
        Daniel Kolesa <q66@...mera-linux.org>,
        Chris Mason <clm@...a.com>
Subject: Re: [PATCH] Documentation/llvm: add Chimera Linux, Google and Meta datacenters

On Wed, Feb 1, 2023 at 8:47 PM Nick Desaulniers <ndesaulniers@...gle.com> wrote:
>
> Chimera Linux is a Linux distribution from 2021 that builds its kernels
> with Clang.
>
> Google transitioned its data center fleet to run Clang built kernels in
> 2021, and Meta did so as well in 2022.  Meta talked about this at LPC
> 2022 at a talk titled Kernel Live Patching at Scale.
>
> These were important milestones for building the kernel with Clang.
> Making note of them helps improve confidence in the project.
>
> Signed-off-by: Yonghong Song <yhs@...com>
> Signed-off-by: Nick Desaulniers <ndesaulniers@...gle.com>
> ---
> Cc: Daniel Kolesa <q66@...mera-linux.org>
> Cc: Chris Mason <clm@...a.com>
> ---
>  Documentation/kbuild/llvm.rst | 15 +++++++++------
>  1 file changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/Documentation/kbuild/llvm.rst b/Documentation/kbuild/llvm.rst
> index 6b2bac8e9ce0..6a37ab903e45 100644
> --- a/Documentation/kbuild/llvm.rst
> +++ b/Documentation/kbuild/llvm.rst
> @@ -15,12 +15,15 @@ such as GCC and binutils. Ongoing work has allowed for `Clang
>  <https://clang.llvm.org/>`_ and `LLVM <https://llvm.org/>`_ utilities to be
>  used as viable substitutes. Distributions such as `Android
>  <https://www.android.com/>`_, `ChromeOS
> -<https://www.chromium.org/chromium-os>`_, and `OpenMandriva
> -<https://www.openmandriva.org/>`_ use Clang built kernels.  `LLVM is a
> -collection of toolchain components implemented in terms of C++ objects
> -<https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM that
> -supports C and the GNU C extensions required by the kernel, and is pronounced
> -"klang," not "see-lang."
> +https://www.chromium.org/chromium-os>`_, `OpenMandriva
> +<https://www.openmandriva.org/>`_, and `Chimera Linux
> +<https://chimera-linux.org/>`_ use Clang built kernels. Google's and Meta's
> +datacenter fleets also run kernels built with Clang.
> +
> +`LLVM is a collection of toolchain components implemented in terms of C++
> +objects <https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM
> +that supports C and the GNU C extensions required by the kernel, and is
> +pronounced "klang," not "see-lang."
>

Nick thanks for the patch!

My ex-colleague Bernd Helmle corrected me - it's not "See-Lang" it's
"Klang" and encouraged me to work on ClangBuiltLinux.

"Klang" means German tone, sound, etc. like vocal tone.

That "sounds" nice (shrillness):
clangor (AE) / clangour (BE) - schriller Klang (DE)

For Bernd:

Reviewed-by: Sedat Dilek <sedat.dilek@...il.com>

BR,
-Sedat-

[1] https://dict.leo.org/englisch-deutsch/Klang

>  Clang
>  -----
> --
> 2.39.1.456.gfc5497dd1b-goog
>