From: Joseph Myers <joseph@codesourcery.com>
To: Bruno Haible <bruno@clisp.org>
Cc: Florian Weimer <fweimer@redhat.com>,
bug-gnulib@gnu.org, libc-alpha@sourceware.org
Subject: Re: Undefined use of weak symbols in gnulib
Date: Tue, 27 Jul 2021 20:02:51 +0000 [thread overview]
Message-ID: <alpine.DEB.2.22.394.2107271957410.403014@digraph.polyomino.org.uk> (raw)
In-Reply-To: <1882380.6EOZElgKgl@omega>
On Sat, 17 Jul 2021, Bruno Haible wrote:
> 2) /usr/include/gnu/lib-names.h still defines LIBPTHREAD_SO.
> How about not defining LIBPTHREAD_SO, since linking with it is supposed
> to be a no-op in these newer glibc versions?
I think LIBPTHREAD_SO is really for use with dlopen (followed by e.g.
using dlsym to look up a function by name at runtime), not linking against
(in general you need to link against the *.so name which might be a linker
script, not directly against the shared library's SONAME).
So if there's any change regarding LIBPTHREAD_SO, I think the natural one
would be to define it to LIBC_SO (I hope the dlopen/dlsym case works
regardless of whether that change is made or not).
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2021-07-27 20:04 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-27 5:53 Undefined use of weak symbols in gnulib Florian Weimer via Libc-alpha
2021-04-27 6:50 ` Paul Eggert
2021-04-27 6:58 ` Florian Weimer via Libc-alpha
2021-04-27 7:13 ` Paul Eggert
2021-04-27 7:24 ` Andreas Schwab
2021-04-27 11:06 ` Florian Weimer via Libc-alpha
2021-04-28 0:09 ` Bruno Haible
2021-04-28 2:10 ` H.J. Lu via Libc-alpha
2021-04-28 2:13 ` H.J. Lu via Libc-alpha
2021-05-05 20:31 ` Fangrui Song
2021-04-28 8:35 ` Florian Weimer via Libc-alpha
2021-04-28 13:15 ` Michael Matz
2021-04-28 7:44 ` Florian Weimer via Libc-alpha
2021-04-28 14:48 ` Bruno Haible
2021-04-28 17:44 ` Florian Weimer via Libc-alpha
2021-07-17 14:38 ` Bruno Haible
2021-07-17 14:55 ` Florian Weimer via Libc-alpha
2021-07-17 16:39 ` Bruno Haible
2021-07-27 20:02 ` Joseph Myers [this message]
2021-07-27 20:19 ` Florian Weimer via Libc-alpha
2021-07-27 23:38 ` Paul Eggert
2021-04-27 23:22 ` Bruno Haible
2021-04-27 23:47 ` Bruno Haible
2021-04-28 7:57 ` Florian Weimer via Libc-alpha
2021-04-28 14:40 ` Bruno Haible
2021-04-28 17:43 ` Florian Weimer via Libc-alpha
2021-04-29 15:15 ` Bruno Haible
2021-04-30 9:55 ` Florian Weimer via Libc-alpha
2021-04-29 6:33 ` Ben Pfaff via Libc-alpha
2021-05-03 1:44 ` Alan Modra via Libc-alpha
2021-07-12 10:04 ` Michael Hudson-Doyle via Libc-alpha
2021-07-12 15:03 ` Florian Weimer via Libc-alpha
2021-07-12 15:30 ` Matthias Klose
2021-07-12 15:37 ` Florian Weimer via Libc-alpha
2021-07-13 0:22 ` Michael Hudson-Doyle via Libc-alpha
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