Re: [RFA] use frame IDs to detect function calls while stepping

[Elena Zannoni <ezannoni@redhat.com>]

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.