[avr-chat] Preferred debugging/executable format (ELF vs. DWARF)?

[Rick Mann]

I'm toying with the idea of writing a debugger for AVR development  
(don't ask why).

I'd like to know a little about ELF vs. DWARF formats. Are these two  
mutually exclusive? I currently build and debug with ELF, but I get  
the idea that DWARF is preferred. Is this the case? How well is it  
supported in the current toolchain?

Thanks!

--
Rick