debugging program on ARM target

[Benjamin Tze-Kit Lee]

Hi all,

I would like to debug a program on a board that's using the ARM cpu.  In
order to do that I think I would need the "rdi" option for target.  How
can I get that option to work?

I've also seen some examples in the web that I can do the remote debugging
on the ARM by using a program called arm-elf-gdb ........ but I am not
sure where I can get it.  Is that Linux based?  Or it actually runs on
Unix too?

Please give me some help on this.
Thank you very much.

Benjamin Lee