Understanding GDB frames

[Jim Blandy]

Ross Morley <ross@tensilica.com> writes:
> We need to remember, though, that one goal is to minimize the overhead
> for the MI front end of having to re-create varobjs. As we get better
> at detecting a frame change (reduce false positives) we actually increase
> the overhead for the FE because it then (to be correct) needs to recreate
> its varobjs. We should think about solving that problem before we get too
> much better at detecting frame changes.

If you don't detect a frame change, then you're displaying garbage,
aren't you?  I'd expect fewer false positives should always be good...