linux-kernel - Re: [PATCH 00/13] [RFC] Rust support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAFLxGvzzmytRewN+tnepyKDY6f1yYUUtXVtnV+ozDzdfOwVN6g@mail.gmail.com>
Date:   Sat, 17 Apr 2021 22:42:06 +0200
From:   Richard Weinberger <richard.weinberger@...il.com>
To:     ojeda@...nel.org
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        rust-for-linux@...r.kernel.org,
        linux-kbuild <linux-kbuild@...r.kernel.org>,
        linux-doc@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 00/13] [RFC] Rust support

On Thu, Apr 15, 2021 at 2:41 AM <ojeda@...nel.org> wrote:
> Regarding compilers, we support Clang-built kernels as well as
> `LLVM=1` builds where possible (i.e. as long as supported by
> the ClangBuiltLinux project). We also maintain some configurations
> of GCC-built kernels working, but they are not intended to be used
> at the present time. Having a `bindgen` backend for GCC would be
> ideal to improve support for those builds.

Sp this effectively means gcc is a second class citizen and even if
gcc is supported
at some point one needs a super recent gcc *and* rust toolchain to build
a rust-enabeled kernel?
I understand that this is right now not a big deal, but as soon a
non-trival subsystem
is rust-only people are forced to upgrade.

Don't get me wrong, I'm all for having rust support in Linux.
But I'm a bit worried about new dependencies on compiler toolchains.
As someone who works a lot with long supported embedded systems I learned that
as soon an application gains a hard dependency on clang or rust I'm in trouble.

-- 
Thanks,
//richard