Restore DW_AT_abstract_origin for cross-unit call sites

PR debug/66503

gcc/ChangeLog:
	* debug.h (struct gcc_debug_hooks): Add a
	register_main_translation_unit hook.
	* debug.c (do_nothing_debug_hooks): Provide a function for this
	new hook.
	* dbxout.c (dbx_debug_hooks): Likewise.
	* sdbout.c (sdb_debug_hooks): Likewise.
	* vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
	* dwarf2out.c (main_translation_unit): New global variable.
	(dwarf2out_register_main_translation_unit): New function
	implementing the new hook.
	(dwarf2_debug_hooks): Assign
	dwarf2out_register_main_translation_unit to this new hook.
	(dwarf2out_init): Associate any main translation unit to
	comp_unit_die ().
	* c/c-decl.c (pop_scope): Register the main translation unit
	through the new debug hook.
	* cp/decl.c (cxx_init_decl_processing): Likewise.

gcc/ada/ChangeLog:
	* gcc-interface/utils.c (get_global_context): Register the main
	translation unit through the new debug hook.

gcc/fortran/ChangeLog:
	* f95-lang.c (gfc_create_decls): Register the main translation
	unit through the new debug hook.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@224371 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 2 insertions, 0 deletions

diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index 3bed5382600..ffd068aadeb 100644
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -3831,6 +3831,8 @@ cxx_init_decl_processing (void)
   global_namespace = build_lang_decl (NAMESPACE_DECL, global_scope_name,
 				      void_type_node);
   DECL_CONTEXT (global_namespace) = build_translation_unit_decl (NULL_TREE);
+  debug_hooks->register_main_translation_unit
+    (DECL_CONTEXT (global_namespace));
   TREE_PUBLIC (global_namespace) = 1;
   begin_scope (sk_namespace, global_namespace);