--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/tree-diagnostic.c	Mon May 24 12:47:05 2010 +0900
@@ -0,0 +1,48 @@
+/* Language-independent diagnostic subroutines for the GNU Compiler
+   Collection that are only for use in the compilers proper and not
+   the driver or other programs.
+   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+   2009, 2010 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tree.h"
+#include "diagnostic.h"
+#include "tree-diagnostic.h"
+#include "langhooks.h"
+#include "langhooks-def.h"
+
+/* Prints out, if necessary, the name of the current function
+   that caused an error.  Called from all error and warning functions.  */
+void
+diagnostic_report_current_function (diagnostic_context *context,
+				    diagnostic_info *diagnostic)
+{
+  diagnostic_report_current_module (context);
+  lang_hooks.print_error_function (context, input_filename, diagnostic);
+}
+
+void
+default_tree_diagnostic_starter (diagnostic_context *context,
+				 diagnostic_info *diagnostic)
+{
+  diagnostic_report_current_function (context, diagnostic);
+  pp_set_prefix (context->printer, diagnostic_build_prefix (diagnostic));
+}