From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gary Thomas <gthomas@cambridge.redhat.com>
To: james chen <james_ch1@sina.com>
Cc: ecos-discuss@sources.redhat.com
Subject: RE: [ECOS] Memory Layout
Date: Wed, 18 Apr 2001 05:24:00 -0000
Message-id: <XFMail.20010418062421.gthomas@cambridge.redhat.com>
References: <000701c0c7e6$2c620240$c408aa0a@inc.inventec>
X-SW-Source: 2001-04/msg00163.html

On 18-Apr-2001 james chen wrote:
> Hello,
> 
>        From memory layout, I find that Redboot( startup in ROM) and
> Applications( startup in RAM ) both share the same memory address and size.
> When I use GDB debugging applications through redboot's gdb stub. Will
> redboot's memory  be cracked by Applications? Thanks in advance!

Memory used by RedBoot and "normal" applications do not overlap.  The MLT
files imply that they do, but this is because RedBoot is just a ROM 
application and the MLT setup is to allow for any application to use all
available resources.

In general, RedBoot uses a chunk of low memory (128k is typical) and
RAM based applications are set up to load just above that and use the
remaining memory.