Re: [PATCH v2] rust: alloc: satisfy `aligned_alloc` requirements

Miguel Ojeda
2025-02-08T23:51:15Z

On Sun, Feb 9, 2025 at 12:35 AM Alejandro Colomar <alx@kernel.org> wrote:
>
> Your manual page is too old. :)
>
> commit 7fd1e0f2be216a5e7f7aef0d03304bdf81bca9e0
> Author: DJ Delorie <dj@redhat.com>
> Date: Mon May 8 20:43:35 2023 -0400
>
> posix_memalign.3: Update aligned_alloc(3) to match C17

Thanks -- good to know it is fixed! Confirming in the VM where I found
the 2023 glibc change, it does have the man pages is updated there
too, so that is great.

> If the implementation in glibc has changed over time, we should probably
> add a HISTORY section documenting historic behavior.

At the very least, glibc made it stricter in d1417176a35d
("aligned_alloc: conform to C17") -- that is the 2023 change I
referred to the other day. Before that, you could pretty much pass any
alignment/size pair and it would succeed (small values).

Cheers,
Miguel