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edata alignment

To: "linux-mips@oss.sgi.com" <linux-mips@oss.sgi.com>
Subject: edata alignment
From: Pete Popov <ppopov@pacbell.net>
Date: Thu, 05 Apr 2001 21:15:25 -0700
Sender: owner-linux-mips@oss.sgi.com
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. 

Pete

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