[RFA] Reverse Debugging, 1/5

[Joel Brobecker]

> >My own view was a little simpler: Delete the target_set_execdir method,
> 
> I'm guessing you meant "get" here?

Ooops! yes, that' right.

> 
> >and replace all the calls with a reference to the infrun global. I would
> >keep the target_set_execdir more or less as is; otherwise, you'll need
> >some kind of observer to notice when the execdir changes. The
> >"to_can_go_backwards" is an interesting idea, but in my opinion only
> >makes sense if the target_set_execdir method is removed.  Otherwise,
> >we can treat target_set_execdir == NULL as cannot-go-backwards.
> 
> OK, so you're saying that "target_set_execdir" will set the
> global infrun variable, not a target-defined variable?

Not quite, actually. Roughly, when the user changes the exec direction,
we call target_set_execdir and, if the call succeeded, then update the
direction known in infrun. Or perhaps you or others have better ideas?

-- 
Joel