From: Carlos O'Donell <carlos@redhat.com>
To: "Ludovic Courtès" <ludovic.courtes@inria.fr>
Cc: 41189@debbugs.gnu.org
Subject: [bug#41189] [PATCH 0/3] Add Fakechroot engine for 'guix pack -RR'
Date: Tue, 12 May 2020 08:09:53 -0400 [thread overview]
Message-ID: <ae8a5cbe-3a45-2f56-b7ed-9845f7f30215@redhat.com> (raw)
In-Reply-To: <87r1vpbhce.fsf@gnu.org>
On 5/12/20 6:03 AM, Ludovic Courtès wrote:
> One thing that won’t work is dlopen because our ‘--library-path’
> argument is computed statically based on the RUNPATH of the wrapped
> program. So for instance if you try to load guile-readline.so from
> Guile, it eventually fails because libreadline.so isn’t found
> (libreadline.so is in the RUNPATH of guile-readline.so, but the loader
> uses non-interposable calls here as well.) Probably no simple solution
> to that one.
There is a simple solution. You need to write a dynamic loader audit module
that handles la_objsearch() and inject your lookup path. See man 7 rtld-audit.
The dynamic loader audit modules allow you to alter the loader's core behaviour
with a plugin.
--
Cheers,
Carlos.
next prev parent reply other threads:[~2020-05-12 15:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-11 17:05 [bug#41189] [PATCH 0/3] Add Fakechroot engine for 'guix pack -RR' Ludovic Courtès
2020-05-11 17:11 ` [bug#41189] [PATCH 1/3] pack: Wrapper honors 'GUIX_EXECUTION_ENGINE' environment variable Ludovic Courtès
2020-05-11 17:11 ` [bug#41189] [PATCH 2/3] gnu: Add fakechroot Ludovic Courtès
2020-05-11 17:11 ` [bug#41189] [PATCH 3/3] pack: Add relocation via ld.so and fakechroot Ludovic Courtès
2020-05-11 21:18 ` [bug#41189] [PATCH 0/3] Add Fakechroot engine for 'guix pack -RR' Carlos O'Donell
2020-05-12 10:03 ` Ludovic Courtès
2020-05-12 12:09 ` Carlos O'Donell [this message]
2020-05-12 15:32 ` Ludovic Courtès
2020-05-13 12:52 ` [bug#41189] [PATCH v2 0/4] " Ludovic Courtès
2020-05-13 12:52 ` [bug#41189] [PATCH v2 1/4] pack: Wrapper honors 'GUIX_EXECUTION_ENGINE' environment variable Ludovic Courtès
2020-05-13 12:52 ` [bug#41189] [PATCH v2 2/4] pack: Factorize store references in wrapper Ludovic Courtès
2020-05-13 12:52 ` [bug#41189] [PATCH v2 3/4] gnu: Add fakechroot Ludovic Courtès
2020-05-13 12:52 ` [bug#41189] [PATCH v2 4/4] pack: Add relocation via ld.so and fakechroot Ludovic Courtès
2020-05-14 15:24 ` bug#41189: [PATCH v2 0/4] Add Fakechroot engine for 'guix pack -RR' Ludovic Courtès
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