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Date: Tue, 10 Dec 2002 16:56:00 -0000
From: "H. J. Lu" <hjl@lucon.org>
To: Roland McGrath <roland@redhat.com>
Cc: Ulrich Drepper <drepper@redhat.com>,
	Jakub Jelinek <jakub@redhat.com>,
	Glibc hackers <libc-hacker@sources.redhat.com>
Subject: Re: [PATCH] Fix tst-array* on x86_64
Message-ID: <20021210165623.A5106@lucon.org>
References: <20021210154427.A4165@lucon.org> <200212110035.gBB0Zs029801@magilla.sf.frob.com>
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In-Reply-To: <200212110035.gBB0Zs029801@magilla.sf.frob.com>; from roland@redhat.com on Tue, Dec 10, 2002 at 04:35:54PM -0800
X-SW-Source: 2002-12/txt/msg00027.txt.bz2

On Tue, Dec 10, 2002 at 04:35:54PM -0800, Roland McGrath wrote:
> I already read the linker script of course.  I don't see how that explains
> it.  The ALIGN is done before the symbol or the section.  Ah, but you are
> saying that the section will have sh_addralign of 16 and that will skip the
> word after the symbol and before the section.  Of course, you didn't say
> that so I can only assume that having me just get lucky and guess what you
> meant was your way of being helpful.

The linker script shows that __preinit_array_start is aligned by
ALIGN(${ALIGNMENT}). It doesn't matter what alignment .preinit_array
uses. A target has to make sure all __*_array_start are aligned
properly. The current elf.sc assumes ALIGN(${ALIGNMENT}) will align
all __*_array_start correctly. It seems to work for ia32 and ia64.


H.J.