GNU bug report logs - #65486
[PATCH] syscalls: Add support for musl libc

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Message #23 received at 65486 <at> debbugs.gnu.org (full text, mbox):

From: Sören Tempel <soeren <at> soeren-tempel.net>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 65486 <at> debbugs.gnu.org
Subject: Re: bug#65486: [PATCH] syscalls: Add support for musl libc
Date: Fri, 15 Sep 2023 12:57:29 +0200

[Message part 1 (text/plain, inline)]

Hi Ludovic,

Ludovic Courtès <ludo <at> gnu.org> wrote:
> You could call it ‘musl?’ instead, to (hopefully) convey we’re
> interested in the C library specifically.

I used musl-libc? instead to make it more clear that we are interested
in the C library for this case-distinction. This is implemented in the
attached git-format-patch(1). Would that be suitable for inclusion in
Guix?

> No no, I meant something like:
> 
>   (or (false-if-exception (dynamic-func "readdir64" (dynamic-link)))
>       (dynamic-func "readdir" (dynamic-link)))
> 
> Of course, it’s not as simple as this because we’d rather have it
> integrated with ‘syscall->procedure’ (maybe by adding an
> #:alternative-name argument for the Musl name?), but you get the idea.

Also this check doesn't ensure struct layout compatibility, e.g. if
readdir uses 32-bit types so not sure if this is necessarily better
than the musl libc check I proposed above.

Let me know what you think.

Greetings
Sören

[0002-syscalls-Add-support-for-musl-libc.patch (text/plain, attachment)]

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