[NDS32] Add t-nds32-glibc file.

libgcc/
	* config/nds32/t-nds32-glibc: New file.

From-SVN: r264460

libgcc/ChangeLog

+2018-09-21  Kito Cheng  <kito.cheng@gmail.com>
+
+	* config/nds32/t-nds32-glibc: New file.
+
 2018-09-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* configure.ac (solaris_ld_v2_maps): New test.

libgcc/config/nds32/t-nds32-glibc

+# Rules of glibc library makefile of Andes NDS32 cpu for GNU compiler
+# Copyright (C) 2012-2015 Free Software Foundation, Inc.
+# Contributed by Andes Technology Corporation.
+#
+# 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/>.
+
+# Compiler flags to use when compiling 'libgcc2.c'
+HOST_LIBGCC2_CFLAGS = -O2 -fPIC -fwrapv
+LIB2ADD += $(srcdir)/config/nds32/linux-atomic.c
+
+#LIB1ASMSRC   = nds32/lib1asmsrc-newlib.S
+#LIB1ASMFUNCS = _divsi3 _modsi3 _udivsi3 _umodsi3
+
+# List of functions not to build from libgcc2.c.
+#LIB2FUNCS_EXCLUDE = _clzsi2
+
+# List of extra C and assembler files(*.S) to add to static libgcc2.
+#LIB2ADD_ST += $(srcdir)/config/nds32/lib2csrc-newlib/_clzsi2.c
+
+# ------------------------------------------------------------------------