Re: Seeking for pointers about creating a custom GNAT runtime

[Lucretia <laguest9000@googlemail.com>]

On Wednesday, April 25, 2012 9:44:13 AM UTC+1, Hibou57 (Yannick Duchêne) wrote:
> Hi all happy Ada prose authors,
> 
> I am seeking for some pointers, basic advices, about creating a custom  
> runtime for GNAT.
> 
> That's basically for a kind of toy for me: a minimal bootable environment  
> in which I will mainly play with some assembly and run some experiment.  
> However, I will also need a minimal environment, like a minimal text  
> editor and a minimal terminal emulation, among others fundamental stuff,  
> and don't feel OK doing this in either assembly or C. Note that I am not  
> announcing a new OS in Ada, I'm not that silly, that's just planed to be a  
> toy for some personal experiments.
> 
> Any pointers welcome. I am not expecting anyone to do the stuff for me,  
> just pointers.

I have done this on an ARM board, see the "blink" directory of https://github.com/Lucretia/tamp, it does nothing but boot on a board. You can apply the same idea for x86, you can use the --RTS flag to point to your new custom RTS.

Luke.