--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/aarch64/biarchilp32.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,29 @@
+/* Make configure files to produce biarch compiler defaulting to ilp32 ABI.
+   This file must be included very first, while the OS specific file later
+   to overwrite otherwise wrong defaults.
+   Copyright (C) 2013-2017 Free Software Foundation, Inc.
+   Contributed by ARM Ltd.
+
+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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#define AARCH64_ABI_DEFAULT AARCH64_ABI_ILP32
+#define TARGET_DATA_MODEL 2