From: Paul Mackerras <paulus@samba.org>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
linuxppc64-dev <linuxppc64-dev@lists.linuxppc.org>,
Ulrich Drepper <drepper@redhat.com>
Subject: Re: vDSO for ppc64 : Preliminary release #3
Date: Thu, 9 Sep 2004 21:22:28 +1000 [thread overview]
Message-ID: <16704.15604.289019.476483@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <20040909091208.GY31909@devserv.devel.redhat.com>
Jakub Jelinek writes:
> That is on purpose, even if vDSO location is randomized (e.g. on IA-32),
> no relocations should happen, so that the vDSO can be shared (unless
> written into by the debugger, that is). ld.so knows how to deal with
> .dynamic section relocation of vDSOs.
On 64-bit architectures which use procedure descriptors, the
descriptors will have to be relocated (unless you or Alan can come up
with some toolchain or ld.so magic or something). But the descriptors
are in the data section rather than the text, of course.
Paul.
next prev parent reply other threads:[~2004-09-09 11:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-09 8:43 Benjamin Herrenschmidt
2004-09-09 9:01 ` Benjamin Herrenschmidt
2004-09-09 9:12 ` Jakub Jelinek
2004-09-09 11:22 ` Paul Mackerras [this message]
2004-09-09 11:59 ` Benjamin Herrenschmidt
2004-09-09 12:15 ` Jakub Jelinek
2004-09-09 12:38 ` Benjamin Herrenschmidt
2004-09-09 11:55 ` Benjamin Herrenschmidt
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