linux-mips
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Re: edata alignment

To: Pete Popov <ppopov@pacbell.net>, "linux-mips@oss.sgi.com" <linux-mips@oss.sgi.com>
Subject: Re: edata alignment
From: Justin Carlson <carlson@sibyte.com>
Date: Fri, 6 Apr 2001 10:01:25 -0700
In-reply-to: <3ACD42DD.A9E0A0E7@pacbell.net>
Organization: Sibyte
References: <3ACD42DD.A9E0A0E7@pacbell.net>
Reply-to: carlson@sibyte.com
Sender: owner-linux-mips@oss.sgi.com
On Thu, 05 Apr 2001, Pete Popov wrote:
> In arch/mips/kernel/head.S, there is this code in kernel_entry:
> 
>    la      t0, _edata
>    sw      zero, (t0)
> 
> What guarantees that edata will be word aligned? I don't see a .ALIGN
> directive in the ld.script so is it safe to assume that edata will
> always be at least word aligned?  I've linked into the kernel a very
> large ramdisk, and edata ends up being an odd address, causing a cpu
> fault. 

This was fixed between revs 1.4 and 1.5 in cvs @ oss.sgi.com

-Justin

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