Re: [RFC] gdb.base/args.exp: Invoke gdb_load for simulator targets

[Michael Snyder <msnyder@redhat.com>]

Andrew Cagney wrote:
> 
> > On Apr 9, 10:21am, Andrew Cagney wrote:
> >
> >
> >> >    * gdb.base/args.exp: Invoke gdb_load for simulator targets.
> >> >    Modify regexps to match extra output after program exit in a
> >> >    simulator.
> >
> >>
> >> What's the extra output?  That part may be a bug.
> >
> >
> > When running on a simulator, I see:
> >
> >     (gdb) target sim
> >     Connected to the simulator.
> >     (gdb) load gdb.base/args
> >     (gdb) run
> >     Starting program: .../gdb.base/args 1 3
> >     3
> >     .../gdb.base/args
> >     1
> >     3
> >
> >     Program exited normally.
> >     [Switching to process 0]
> >     Current language:  auto; currently asm
> >     (gdb)
> >
> > When running with a native gdb, I see:
> >
> >     (gdb) run
> >     Starting program: .../gdb.base/args 1 3
> >     3
> >     .../gdb.base/args
> >     1
> >     3
> >
> >     Program exited normally.
> >     (gdb)
> >
> > The extra output is the bit about switching to process 0 and reporting
> > the current language.  I figured it was a feature, but it may well be
> > a bug.  (It seems pretty harmless...)
> 
> I recall that mysteriously appearing at some stage.  I don't think it is
> a feature since `Switching to process 0' doesn't make any sense - if the
> program exited normally then there are no processes.
> 
> I suspect that it is related to the SIM trying to simultaneously be an
> embedded board (which can't exit) and a normal UNIX process (which does
> exit).

I'd be more inclined to attribute it to some recent change
in infrun or close associates.  It thinks the inferior_pid
has changed.