linux-kernel - Re: [PATCH] Documentation/llvm: Add a section about supported architectures

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Message-ID: <20210129203106.GA2658360@localhost>
Date:   Fri, 29 Jan 2021 13:31:06 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     Jonathan Corbet <corbet@....net>,
        Masahiro Yamada <masahiroy@...nel.org>
Cc:     Nick Desaulniers <ndesaulniers@...gle.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        clang-built-linux@...glegroups.com, linux-kbuild@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Miguel Ojeda <ojeda@...nel.org>
Subject: Re: [PATCH] Documentation/llvm: Add a section about supported
 architectures

On Wed, Jan 13, 2021 at 05:34:47PM -0700, Nathan Chancellor wrote:
> The most common question around building the Linux kernel with clang is
> "does it work?" and the answer has always been "it depends on your
> architecture, configuration, and LLVM version" with no hard answers for
> users wanting to experiment. LLVM support has significantly improved
> over the past couple of years, resulting in more architectures and
> configurations supported, and continuous integration has made it easier
> to see what works and what does not.
> 
> Add a section that goes over what architectures are supported in the
> current kernel version, how they should be built (with just clang or the
> LLVM utilities as well), and the level of support they receive. This
> will make it easier for people to try out building their kernel with
> LLVM and reporting issues that come about from it.
> 
> Suggested-by: Miguel Ojeda <ojeda@...nel.org>
> Signed-off-by: Nathan Chancellor <natechancellor@...il.com>

Jonathan, did you need anything else from me on this, or does Masahiro
need to pick this up?

Cheers,
Nathan