From: Rich Felker <dalias@libc.org>
To: jane400 <jane400@postmarketos.org>
Cc: musl@lists.openwall.com
Subject: Re: [musl] [PATCH] sys/prctl.h: use linux uapi header
Date: Fri, 6 Sep 2024 08:45:35 -0400 [thread overview]
Message-ID: <20240906124533.GU10433@brightrain.aerifal.cx> (raw)
In-Reply-To: <20240906114930.17884-1-jane400@postmarketos.org>
On Fri, Sep 06, 2024 at 01:49:30PM +0200, jane400 wrote:
> The file also includes backports until 2023 for older kernels.
>
> There are no exisiting UAPI guards in the kernel for this header
> and as complex projects like systemd sometimes use both, it was
> easiest to just use the defintions from the kernel directly instead
> of copying in them. This way we're never redefining stuff in end-user
> applications and get the benefit of using the latest API that is
> available on this system.
Using both is not a supported usage. This comes up in multiple places
other than sys/prctl.h, like lots of network stuff, and the
applications doing it just need to be fixed. Generally we do not use
uapi headers at all from musl, and offer a working compilation
environment without uapi headers installed. This would also be a
breaking change if we ever needed to call prctls internally from libc,
as then building musl itself would depend on kernel headers.
next prev parent reply other threads:[~2024-09-06 12:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-06 11:49 jane400
2024-09-06 12:45 ` Rich Felker [this message]
[not found] ` <f205094d-d090-4a06-904a-d74bd244a7cb@postmarketos.org>
2024-09-06 16:42 ` Rich Felker
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