Re: How to load and execute COFF file

[Toralf Lund <toralf at procaptura dot com>]

> Hi Toralf,
>
> On Friday, September 12, 2003 3:42 PM Toralf wrote
>  
>
> > > If the target runs gdbstubs, then you could download and launch the 
> > > COFF file with gdb.
> > >      
> > It doesn't. It runs nothing as all, really, except for a very simple 
> > "bug rom" routine. That routine may be instructed via an externally 
> > generated interrupt to jump to a certain memory location, though, 
> > typically after the code has been written to the unit's memory by 
> > another board (it has dual-port RAM.)
> >
> > Essentially what I'm asking is how do I find the jump address, and do I 
> > have to do special relocation operations or anything before entering it?
> >    
>
> I have essentially the same problem with a SH target and what I have been doing is
> using objcopy to generate an S-Record file from the coff (or elf) file.
Yes, maybe that's a good idea.

> I have a
> simple loader that can get the S-Record file into RAM of Flash via a serial port
> (or I can use a programmer for production) and I use the S7/8/9 record to get the
> start address (which one depends on the address size).
>
> If you want I can send you my S record loader code and you can add it to your
> bug rom.
>  
Could be useful. Please do.

Thanks.
--
- Toralf


------
Want more information?  See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/
Want to unsubscribe? Send a note to crossgcc-unsubscribe@sources.redhat.com