RFA/RFC: Change Sparc64 gdb.asm tests to use -gdwarf2 instead of -gstabs

[Nick Clifton <nickc@redhat.com>]

Hi Guys,

  I would like permission to apply the following patch.  It changes
  the switch used to generate debugging information for Sparc64
  targets from -gstabs to -gdwarf2.

  This patch might be controversial however since although DWARF2 is a
  more modern debug format when compared to STABS, there is also a
  second motive for the change: GAS does not generate correct relocs
  for Sparc64 STABS debug information.  So this patch works around a
  known failure in GAS, which means that possibly the problem might be
  forgotten.

Cheers
    Nick

gdb/testsuite/ChangeLog
2004-07-26  Nick Clifton  <nickc@redhat.com>

	* gdb.asm/asm-source.exp: Use -gdwarf2 in preference to
	-gstabs for Sparc64.

Index: gdb/testsuite/gdb.asm/asm-source.exp
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.asm/asm-source.exp,v
retrieving revision 1.50
diff -c -3 -p -r1.50 asm-source.exp
*** gdb/testsuite/gdb.asm/asm-source.exp	25 May 2004 04:07:05 -0000	1.50
--- gdb/testsuite/gdb.asm/asm-source.exp	26 Jul 2004 12:53:52 -0000
*************** switch -glob -- [istarget] {
*** 95,101 ****
      }
      "sparc64-*-*" {
          set asm-arch sparc64
!         set asm-flags "-xarch=v9 -gstabs -I${srcdir}/${subdir} -I${objdir}/${subdir}"
      }
      "xstormy16-*-*" {
          set asm-arch xstormy16
--- 95,101 ----
      }
      "sparc64-*-*" {
          set asm-arch sparc64
!         set asm-flags "-xarch=v9 -gdwarf2 -I${srcdir}/${subdir} -I${objdir}/${subdir}"
      }
      "xstormy16-*-*" {
          set asm-arch xstormy16