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From: Steve Munroe <sjmunroe@us.ibm.com>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Ulrich Drepper <drepper@redhat.com>,
	Glibc hackers <libc-hacker@sources.redhat.com>,
	libc-hacker-owner@sourceware.org
Subject: Re: [PATCH] Fix tst-addr1 on ppc64 and ia64
Date: Thu, 31 Aug 2006 15:56:00 -0000	[thread overview]
Message-ID: <OFB91F90C4.0EB126ED-ON862571DB.00571B32-862571DB.00573C73@us.ibm.com> (raw)
In-Reply-To: <20060831153800.GQ4556@sunsite.mff.cuni.cz>



Jakub Jelinek <jakub@redhat.com> wrote on 08/31/2006 10:38:00 AM:

> Hi!
>
> On ppc64 and ia64 &printf is put into GOT, so the SHN_UNDEF printf
> symbol has zero st_value and thus dladdr (&printf, ...) returns
> a symbol in libc.so.  But, unfortunately, in libc.so _IO_printf
> is an alias to printf, both are global symbols and have the same
> address and size.  Which one comes first in the hash table depends
> on the linker.
>

Thanks I have been scratching my head over that one :)

Steven J. Munroe

      reply	other threads:[~2006-08-31 15:56 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-31 15:38 Jakub Jelinek
2006-08-31 15:56 ` Steve Munroe [this message]

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