PATCH: S/390: don't use uninitialized data to guess frame's old SP

[Jim Blandy]

2001-12-03  Jim Blandy  <jimb@redhat.com>

	* s390-tdep.c (s390_get_frame_info): Don't used fextra_info to set
 	orig_sp if it's not initialized.

Index: gdb/s390-tdep.c
===================================================================
RCS file: /cvs/cvsfiles/devo/gdb/s390-tdep.c,v
retrieving revision 2.23
diff -c -r2.23 s390-tdep.c
*** gdb/s390-tdep.c	2001/11/29 22:25:13	2.23
--- gdb/s390-tdep.c	2001/12/03 17:38:09
***************
*** 242,248 ****
      {
        if (fi && fi->frame)
  	{
! 	  orig_sp = fi->frame + fextra_info->stack_bought;
  	  saved_regs = fi->saved_regs;
  	}
        if (init_extra_info || !fextra_info->initialised)
--- 242,249 ----
      {
        if (fi && fi->frame)
  	{
!           if (! init_extra_info && fextra_info->initialised)
!             orig_sp = fi->frame + fextra_info->stack_bought;
  	  saved_regs = fi->saved_regs;
  	}
        if (init_extra_info || !fextra_info->initialised)