Re: [PATCH] Add "needs_status_wrapper" feature to gdb testsuite.

[Michael Snyder <msnyder@redhat.com>]

Andrew Cagney wrote:
> 
> > This is a feature that has been being used in the GCC testsuite, but I was completely unaware of it before now.
> 
> Michael, this is _still_ broken.

Sorry -- I think there's a fix in-house: I've just been
too busy to push it out to sources.  I'll do it today.


> 
> > This enables tests that look for an exit status to succeed even
> > on targets that don't implement the exit status.  I think it's
> > pretty cool!
> >
> > I've modified two tests from gdb/testsuite to take advantage of it.
> > I'm not sure which other tests may also need modification, but
> > now there are a couple of examples to look at.
> >
> > Index: lib/gdb.exp
> > ===================================================================
> > RCS file: /cvs/src/src/gdb/testsuite/lib/gdb.exp,v
> > retrieving revision 1.15
> > diff -p -r1.15 gdb.exp
> > *** lib/gdb.exp    3 Apr 2002 16:17:11 -0000    1.15
> > --- lib/gdb.exp    7 May 2002 00:10:06 -0000
> > *************** proc gdb_preprocess {source dest args} {
> > *** 1092,1099 ****
> > --- 1092,1125 ----
> >       return $result;
> >   }
> >   + set gdb_wrapper_initialized 0
> > + + proc gdb_wrapper_init { args } {
> > +     global gdb_wrapper_initialized;
> > +     global gdb_wrapper_file;
> > +     global gdb_wrapper_flags;
> >
> > return;
> >
> > +     if { $gdb_wrapper_initialized == 1 } { return; }
> > + +     if {[target_info exists needs_status_wrapper] && \
> > +         [target_info needs_status_wrapper] != "0" && \
> > +         ![info exists gdb_wrapper_file]} {
> > +     set result [build_wrapper "testglue.o"];
> > +     if { $result != "" } {
> > +         set gdb_wrapper_file [lindex $result 0];
> > +         set gdb_wrapper_flags [lindex $result 1];
> > +     } else {
> > +         warning "Status wrapper failed to build."
> > +     }
> > +     }
> > +     set gdb_wrapper_initialized 1
> > + }
> > +