[patch committed] Add new DWARF 4 values to dwarf2.h

[Cary Coutant]

I'm committing this patch to add all the remaining new values from
DWARF 4 to include/dwarf2.h. (Copying from a binutils patch.)

This was preapproved by Ian Lance Taylor.

(There is an overlap with a recent commit by Dodji Seketeli -- the
DWARF 4 DW_TAG_template_alias and his DW_TAG_template_parameter_pack
both have the value 0x43. This won't cause an immediate problem, since
DW_TAG_template_alias isn't yet implemented anywhere, and I've asked
Dodji to renumber his new tags.)

-cary

include/

        Add rest of new values from DWARF Version 4.
        * dwarf2.h (DW_TAG_rvalue_reference_type, DW_TAG_template_alias):
        New tags.
        (DW_FORM_ref_sig8): New name for DW_FORM_sig8.
        (DW_AT_main_subprogram, DW_AT_data_bit_offset, DW_AT_const_expr,
        DW_AT_enum_class, DW_AT_linkage_name, DW_AT_GNU_guarded_by,
        DW_AT_GNU_pt_guarded_by, DW_AT_GNU_guarded, DW_AT_GNU_pt_guarded,
        DW_AT_GNU_locks_excluded, DW_AT_GNU_exclusive_locks_required,
        DW_AT_GNU_shared_locks_required, DW_AT_GNU_odr_signature): New
        attributes.
        (DW_LANG_Python): New language.


Index: dwarf2.h
===================================================================
--- dwarf2.h	(revision 152180)
+++ dwarf2.h	(working copy)
@@ -196,6 +196,8 @@ enum dwarf_tag
     DW_TAG_shared_type = 0x40,
     /* DWARF 4.  */
     DW_TAG_type_unit = 0x41,
+    DW_TAG_rvalue_reference_type = 0x42,
+    DW_TAG_template_alias = 0x43,

     DW_TAG_lo_user = 0x4080,
     DW_TAG_hi_user = 0xffff,
@@ -262,7 +264,8 @@ enum dwarf_form
     DW_FORM_sec_offset = 0x17,
     DW_FORM_exprloc = 0x18,
     DW_FORM_flag_present = 0x19,
-    DW_FORM_sig8 = 0x20
+    DW_FORM_ref_sig8 = 0x20
+#define DW_FORM_sig8  DW_FORM_ref_sig8  /* Note: The use of
DW_FORM_sig8 is deprecated.  */
   };

 /* Attribute names and codes.  */
@@ -361,7 +364,12 @@ enum dwarf_attribute
     DW_AT_pure          = 0x67,
     DW_AT_recursive     = 0x68,
     /* DWARF 4.  */
-    DW_AT_signature     = 0x69,
+    DW_AT_signature       = 0x69,
+    DW_AT_main_subprogram = 0x6a,
+    DW_AT_data_bit_offset = 0x6b,
+    DW_AT_const_expr      = 0x6c,
+    DW_AT_enum_class      = 0x6d,
+    DW_AT_linkage_name    = 0x6e,

     DW_AT_lo_user = 0x2000,	/* Implementation-defined range start.  */
     DW_AT_hi_user = 0x3ff0,	/* Implementation-defined range end.  */
@@ -401,6 +409,18 @@ enum dwarf_attribute
     DW_AT_body_begin = 0x2105,
     DW_AT_body_end   = 0x2106,
     DW_AT_GNU_vector = 0x2107,
+    /* Thread-safety annotations.
+       See http://gcc.gnu.org/wiki/ThreadSafetyAnnotation .  */
+    DW_AT_GNU_guarded_by    = 0x2108,
+    DW_AT_GNU_pt_guarded_by = 0x2109,
+    DW_AT_GNU_guarded       = 0x210a,
+    DW_AT_GNU_pt_guarded    = 0x210b,
+    DW_AT_GNU_locks_excluded = 0x210c,
+    DW_AT_GNU_exclusive_locks_required = 0x210d,
+    DW_AT_GNU_shared_locks_required = 0x210e,
+    /* One-definition rule violation detection.
+       See http://gcc.gnu.org/wiki/DwarfSeparateTypeInfo .  */
+    DW_AT_GNU_odr_signature = 0x210f,
     /* Template template argument name.
        See http://gcc.gnu.org/wiki/TemplateParmsDwarf .  */
     DW_AT_GNU_template_name = 0x2110,
@@ -839,6 +859,7 @@ enum dwarf_source_language
     DW_LANG_ObjC_plus_plus = 0x0011,
     DW_LANG_UPC = 0x0012,
     DW_LANG_D = 0x0013,
+    DW_LANG_Python = 0x0014,

     DW_LANG_lo_user = 0x8000,	/* Implementation-defined range start.  */
     DW_LANG_hi_user = 0xffff,	/* Implementation-defined range start.  */