linux-kernel - Re: [PATCH] Fix initramfs size calculation

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Message-ID: <4C7578A6.2080303@linux.intel.com>
Date:	Wed, 25 Aug 2010 13:10:14 -0700
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	holzheu@...ux.vnet.ibm.com
CC:	sam@...nborg.org, tabbott@...lice.com, vda.linux@...glemail.com,
	mmarek@...e.cz, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, heiko.carstens@...ibm.com,
	brueckner@...ux.vnet.ibm.com, schwidefsky@...ibm.com
Subject: Re: [PATCH] Fix initramfs size calculation

On 08/25/2010 08:57 AM, Michael Holzheu wrote:
> Certain s390 instructions, especially instructions for loading addresses
> (larl) or branch addresses must be on even addresses. 

I have to admit to finding this fairly disturbing, as this is likely to
come up again and again.  Is there any way to tell gcc (e.g. with an
alignment attribute) that a particular symbol is not safe to be loaded
with larl?

	-hpa
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