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Re: FP aliases
Well, the trick is that tic4x-gcc assigns ar3 as an fp register (at all times),
What of -fomit-frame-pointer? GDB's past mistake was to assume, as your
suggesting, that $fp is always a hard register. Unfortunatly, GCC
eventually got better ideas (and eliminated that assumption) causing GDB
to fall apart.
> you wind up stuck in the middle here. You have an FP-like register,
yet it's not named FP.
But I've rough-ported the d10v unwind mechanisms to the tic4x port, and it seems like I am able to work it out without the fp register.
Yes, GDB's FP isn't a real register.
Andrew