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From:   Mariusz Ceier <mceier+kernel@gmail.com>
Date:   Thu, 29 Apr 2021 05:20:45 +0000
Message-ID: <CAJTyqKNsh1UgpuZYoqR6BshxaEEh55WMs=S87U=jYbhQfzvF3g@mail.gmail.com>
Subject: Re: [PATCH 00/13] [RFC] Rust support
To:     David Laight <David.Laight@aculab.com>
Cc:     "ojeda@kernel.org" <ojeda@kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "rust-for-linux@vger.kernel.org" <rust-for-linux@vger.kernel.org>,
        "linux-kbuild@vger.kernel.org" <linux-kbuild@vger.kernel.org>,
        "linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On 28/04/2021, David Laight <David.Laight@aculab.com> wrote:
> From: Mariusz Ceier
>> Sent: 28 April 2021 19:34
> ....
>>
>> I suggest to wait until featureful GPL implementation of rust language
>> is made (assuming GNU Rust is on the way) before merging any rust code
>> in the kernel and when that implementation is done make a requirement
>> that all rust code must be buildable by at least GPL implementation.
>>
>> Maybe it would also be worthwhile to make the requirement that the
>> kernel must be buildable with free software (not just open source
>> software) explicit ?
>
> Or put the version of the compiler that works in the source tree
> with the kernel and then build it as part of the full build.
>
That is an overkill :)
Even hosting a copy of all required tools at kernel.org might be an
overkill (but who knows);
I think having links at
https://www.kernel.org/doc/html/latest/process/changes.html#getting-updated-software
is enough.

> It is enough of a PITA having to find libelf-devel in order to
> build objtool, never mind having to find the correct version
> of something else.
>
> gcc tends to be available and the version doesn't matter too much.
> But ever that gives problems.
>
>       David
>
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