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Re: [RFA] use frame IDs to detect function calls while stepping
On Thu, Feb 05, 2004 at 02:20:10PM -0500, Elena Zannoni wrote:
> Daniel Jacobowitz writes:
>
> > > + if (IN_SOLIB_CALL_TRAMPOLINE (stop_pc, ecs->stop_func_name))
> > > + {
> > > + /* We landed in a shared library call trampoline, so it
> > > + is a subroutine call. */
> > > + handle_step_into_function (ecs);
> > > + return;
> > > + }
> > > +
> > > + if (frame_id_eq (get_frame_id (get_prev_frame (get_current_frame ())),
> > > + step_frame_id))
> > > + {
> > > + /* It's a subroutine call. */
> > > + handle_step_into_function (ecs);
> > > + return;
> > > + }
> > > +
> >
> > get_prev_frame can return NULL. In fact, it generally does in main.
> >
>
> I don't think it matters, frame_id_eq will handle a comparison with
> null_frame_id.
Oh, you're right - I was expecting get_frame_id (NULL) to be a problem,
but it isn't.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer