[patch] Update DWARF codes for Fission

[Cary Coutant]

This patch to include/dwarf2.def updates the DW_FORM and DW_AT codes
for the Fission extensions. We've eliminated DW_FORM_GNU_ref_index,
and replaced DW_AT_GNU_ref_base with DW_AT_GNU_ranges_base. (The wiki
page at http://gcc.gnu.org/wiki/DebugFission has been updated.)

OK for binutils and gcc?

-cary


include/

2012-05-01  Cary Coutant  <ccoutant@google.com>

	* dwarf2.def: Remove DW_FORM_GNU_ref_index,
	replace DW_AT_GNU_ref_base with DW_AT_GNU_ranges_base.


commit bc45612d20fad44534b0efeeb821671d8e8c5b63
Author: Cary Coutant <ccoutant@google.com>
Date:   Tue May 1 16:08:08 2012 -0700

    Update DW_FORM and DW_AT codes for Fission.

diff --git a/include/dwarf2.def b/include/dwarf2.def
index 3ac3354..e36ae91 100644
--- a/include/dwarf2.def
+++ b/include/dwarf2.def
@@ -203,7 +203,6 @@ DW_FORM (DW_FORM_exprloc, 0x18)
 DW_FORM (DW_FORM_flag_present, 0x19)
 DW_FORM (DW_FORM_ref_sig8, 0x20)
 /* Extensions for Fission.  See http://gcc.gnu.org/wiki/DebugFission.  */
-DW_FORM (DW_FORM_GNU_ref_index, 0x1f00)
 DW_FORM (DW_FORM_GNU_addr_index, 0x1f01)
 DW_FORM (DW_FORM_GNU_str_index, 0x1f02)
 DW_END_FORM
@@ -383,7 +382,7 @@ DW_AT (DW_AT_GNU_macros, 0x2119)
 /* Extensions for Fission.  See http://gcc.gnu.org/wiki/DebugFission.  */
 DW_AT (DW_AT_GNU_dwo_name, 0x2130)
 DW_AT (DW_AT_GNU_dwo_id, 0x2131)
-DW_AT (DW_AT_GNU_ref_base, 0x2132)
+DW_AT (DW_AT_GNU_ranges_base, 0x2132)
 DW_AT (DW_AT_GNU_addr_base, 0x2133)
 DW_AT (DW_AT_GNU_pubnames, 0x2134)
 DW_AT (DW_AT_GNU_pubtypes, 0x2135)