Re: [patch/rfc] Use frame_type for sigtramp test in infrun.c

[Andrew Cagney <cagney at gnu dot org>]

> > > based on other discussion, I suspect the test will need to be:
> > >
> > > > if (frame_id_inner (this_frame_id, step_frame_id)
> > > >     || frame_id_eq (....))
> > > >
> > > > the former is to handle a signal delivery that resumed the inferior at the signal handler and not the signal trampoline.
> >
> >
> >
> > Won't anywhere you do that frame_id_inner test add another breakage for
> > sigaltstack?
>
>
> Hmm, true.  Sigaltstack will break any inner test.

Ok (talked this through with jeff).  The id_inner test isn't needed. 
The case of GDB doing a nexti and ending up in a signal handler should 
have been handled earlier (in time).  At the point where the signal 
first arrives - GDB should have set a breakpoint at the signal return 
address and then continued the inferior with the signal.

Time to turn infrun.c into a state machine :-/

Andrew