From a63d78e18413a855742c1d76467b90f455e3ed0e Mon Sep 17 00:00:00 2001
From: Alexandre Oliva <aoliva@redhat.com>
Date: Fri, 19 Feb 2016 19:55:46 -0200
Subject: support aliases and trampolines in dwarf2

for  gcc/ChangeLog

	* debug.h (struct gcc_debug_hooks): Add aliased_decl and
	trampoline_decl.
	* dwarf2out.c (dwarf2out_aliased_decl): New.
	(dwarf2out_trampoline_decl): New.
	(dwarf2_debug_hooks): Add them.
	(dwarf2_name): Skip leading '*' returned by langhook.
	(dwarf2_lineno_debug_hooks): Add dummies.
	* debug.c (do_nothing_debug_hooks): Likewise.
	* dbxout.c (dbx_debug_hooks, xcoff_debug_hooks): Likewise.
	* sdbout.c (sdb_debug_hooks): Likewise.
	* vmsdbgout.c (vmsdbg_debug_hooks): Likewise.
	* cgraph.h (cgraph_node::is_lang_trampoline): Declare.
	* cgraphunit.c: Include demangle.h.
	(cgraph_node::expand_thunk): Call function_decl debug_hook
	after assembly expansion.  Do not mark thunk as ignored in
	gimple expansion.
	(cxx_cdtor_trampoline_p): New.
	(cgraph_node::is_lang_trampoline): New.
	(cgraph_node::assemble_thunks_and_aliases): Call the new
	debug_hooks.
	(symbol_table::output_weakrefs): Likewise.
	* varpool.c (varpool_node::assemble_aliases): Likewise.

for  gcc/cp/ChangeLog

	* method.c (make_alias_for): Copy DECL_IGNORED_P.

for  gcc/testsuite/ChangeLog

	* g++.dg/debug/dwarf2/cdtor-1.C: Adjust linkage_name count.
	* g++.dg/debug/dwarf2/cdtor-2.C: New.
	* g++.dg/debug/dwarf2/cdtor-3.C: New.
	* g++.dg/debug/dwarf2/covariant-1.C: New.
	* gcc.dg/debug/dwarf2/attr-alias-1.c: New.
	* gcc.dg/debug/dwarf2/attr-alias-2.c: New.
	* gcc.dg/debug/dwarf2/attr-weakref-1.c: New.
	* gcc.dg/debug/dwarf2/attr-weakref-2.c: New.
---
 gcc/debug.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'gcc/debug.c')

diff --git a/gcc/debug.c b/gcc/debug.c
index 9c2caaea695..c9495c9a27c 100644
--- a/gcc/debug.c
+++ b/gcc/debug.c
@@ -50,6 +50,8 @@ const struct gcc_debug_hooks do_nothing_debug_hooks =
   debug_nothing_tree_tree_tree_bool,	 /* imported_module_or_decl */
   debug_nothing_tree,		         /* deferred_inline_function */
   debug_nothing_tree,		         /* outlining_inline_function */
+  debug_nothing_tree_tree,		 /* aliased_decl */
+  debug_nothing_tree_tree,		 /* trampoline_decl */
   debug_nothing_rtx_code_label,	         /* label */
   debug_nothing_int,		         /* handle_pch */
   debug_nothing_rtx_insn,	         /* var_location */
-- 
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