porting GCC & GCC backends

[Paul Brook]

On Tuesday 26 September 2006 20:09, Dave Korn wrote:
> On 26 September 2006 20:01, max blomme wrote:
> > I'm attempting to port GCC to our companys 32bit microprocessor, and I'm
> > a bit overwhelmed.
> >
> > Looking through some of the documentation (there's quite a lot of it!) I
> > can't seem to find the answers to a few questions.  Pardon me if they
> > seem basic and obvious.
> >
> > We already have an assembler and linker for the processor.  Should I (or
> > can I) use them as the back end of GCC?
>
>   Yes, you can.  Gcc is designed to interoperate with system-native
> toolchains whereever possible.

Depending how crappy the existing assembler/linker are it may be easier to do 
a gas/binutils/ld ELF port. Non-elf ports are generally a pain and I'd advise 
avoiding them wherever possible.

You can always write a postlinker to convert an elf image into whatever format 
your loader is expecting. This is what uClinux and SymbianOS do.

Paul