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Message-ID: <20261022123154.GC23438@brightrain.aerifal.cx>
Date: Thu, 22 Oct 2026 08:31:55 -0400
From: Rich Felker <dalias@...c.org>
To: mark.yang@....com
Cc: Szabolcs Nagy <nsz@...t70.net>, musl@...ts.openwall.com
Subject: Re: Re: [PATCH] configure: add --sysconfdir for the dynamic
linker path file
On Thu, Oct 22, 2026 at 08:23:50PM +0900, mark.yang@....com wrote:
> From: "mark.yang" <mark.yang@....com>
>
> * Szabolcs Nagy <nsz@...t70.net> [2026-10-22 11:42:53 +0200]:
> > why would you place ld.so in /usr/lib? that's an unusual setup.
> > what are you trying to do?
>
> This comes from OpenEmbedded (Yocto) with the usrmerge distro feature.
> It is the distro default, not a test or isolation setup.
>
> With usrmerge /lib is a symlink to usr/lib. The gcc recipe carries a
> patch that takes the musl dynamic linker path from the system library
> directory, /usr/lib there, so gcc writes /usr/lib/ld-musl-$ARCH.so.1
> into PT_INTERP.
This is a broken patch. The dynamic linker path is ABI and always
needs to be /lib/ld-musl-$ARCH.so.1. This works fine with usrmerge
because /lib exists and is either a symlink to /usr/lib or vice versa.
Rich
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