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Date: Mon, 19 Feb 2007 11:26:00 +1100
From: Paul Mackerras <paulus@samba.org>
To: David Gibson <david@gibson.dropbear.id.au>
Subject: Re: [PATCH 3/3] zImage: Cleanup and improve zImage entry point
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David Gibson writes:

> Err... isn't the called function responsible for setting up its own
> stack frame if necessary.  I thought all that was needed was for r1 to
> point to some free space.

The called function stores its return address in the caller's stack
frame.  So r1 does need to point to a stack frame.

Paul.