The following reply was made to PR sim/2181; it has been noted by GNATS.
From: Daniel Jacobowitz <drow@xxxxxxxxx>
To: muhavid@xxxxxx
Cc: gdb-gnats@xxxxxxxxxxxxxxxxxx
Subject: Re: sim/2181: powerpcsim crt0 could not initialize register "sp" for
MPC555
Date: Fri, 6 Oct 2006 10:31:19 -0400
On Thu, Oct 05, 2006 at 09:27:57PM -0000, muhavid@xxxxxx wrote:
> I hav a problem with setting register "sp". This always happens:
>
> Cannot access memory at address 0x3fb814
>
> I've looked on the internet to find some hint but still without sucess. Can
> somebody tell me what's wrong with my code.
Are you using GDB or the sim directly? Have you configured the sim? I
don't think it comes configured to a memory layout that looks like
this:
> MEMORY
> {
> vector : org = 0x0000000, len = 0x001EFF
> rom : org = 0x0002000, len = 0x06FFFF
> ram : org = 0x03f9800, len = 0x0067FF
> }
at all.
I don't know much about psim but I think you have to give it a
configuration telling it where your RAM is, in the Open Firmware device
tree.
--
Daniel Jacobowitz
CodeSourcery
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