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From: Brian Drummond <brian@shapes.demon.co.uk>
Newsgroups: comp.lang.ada
Subject: Re: Bootstrapping a null procedure. Seriously?!
Date: Tue, 12 Mar 2013 12:09:08 +0000 (UTC)
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Date: 2013-03-12T12:09:08+00:00
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On Mon, 11 Mar 2013 14:14:37 -0700, Diogenes wrote:

> Actually I just need to figure out how to write a crt0.o file just for
> bootstrapping the Runtime.
> 
> That shouldn't be too hard. Really, all the machine needs is a _start
> point. I can gradually add parts of the runtime/kernel from there.
> 
> I'd like to build a runtime/profile that's slightly less rigorous than
> the Ravenscar profile. It would allow Generics and allow Dynamic Memory
> allocation only through the use of explicitly declared Storage Pools.
> Suspect I'll have to do some in depth compiler hacking for that though.

This tutorial on a minimal RTS may be useful (thanks to Luke Guest).

http://wiki.osdev.org/Ada_Bare_bones

Or see the RTS component of the AVR-Ada project on Sourceforge for 
another minimal RTS.

- Brian