--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/csky/t-csky	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,29 @@
+# Make rules for all C-SKY targets.
+#
+# Copyright (C) 2018 Free Software Foundation, Inc.
+# Contributed by C-SKY Microsystems and Mentor Graphics.
+#
+# 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/>.
+
+TM_H += $(srcdir)/config/csky/csky_cores.def
+OPTIONS_H_EXTRA += $(srcdir)/config/csky/csky_cores.def
+
+
+$(srcdir)/config/csky/csky_tables.opt: $(srcdir)/config/csky/csky_genopt.sh \
+  $(srcdir)/config/csky/csky_cores.def
+	$(SHELL) $(srcdir)/config/csky/csky_genopt.sh $(srcdir)/config/csky > \
+		$(srcdir)/config/csky/csky_tables.opt