Add LEON multilibs for sparc-zephyr-elf

Adds the necessary bits for building libraries for the LEON -mcpu
targets.

Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>

Author: Martin Aberg

gcc/config.gcc

@@ -3372,6 +3372,9 @@ sh-wrs-vxworks)
 sparc-*-elf*)
 	tm_file="${tm_file} dbxelf.h elfos.h newlib-stdint.h sparc/sysv4.h sparc/sp-elf.h"
 	case ${target} in
+	    sparc-zephyr*)
+		tmake_file="sparc/t-sparc sparc/t-zephyr"
+		;;
 	    *-leon-*)
 		tmake_file="sparc/t-sparc sparc/t-leon"
 		;;

gcc/config/sparc/t-zephyr

@@ -0,0 +1,55 @@
+# Copyright (C) 2012-2014 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/>.
+
+# Multilibs for Zephyr
+MULTILIB_OPTIONS         =
+MULTILIB_DIRNAMES        =
+
+MULTILIB_OPTIONS        += mcpu=leon/mcpu=leon3/mcpu=leon3v7
+MULTILIB_DIRNAMES       += leon      leon3      leon3v7
+
+MULTILIB_OPTIONS        += msoft-float
+MULTILIB_DIRNAMES       += soft
+
+MULTILIB_OPTIONS        += mflat
+MULTILIB_DIRNAMES       += flat
+
+MULTILIB_MATCHES         = msoft-float=mno-fpu
+
+
+# This is the complete list of multilibs to build
+MULTILIB_REQUIRED       =
+
+
+MULTILIB_REQUIRED += msoft-float
+
+MULTILIB_REQUIRED += mcpu=leon
+MULTILIB_REQUIRED += mcpu=leon/msoft-float
+MULTILIB_REQUIRED += mcpu=leon/mflat
+MULTILIB_REQUIRED += mcpu=leon/msoft-float/mflat
+
+
+MULTILIB_REQUIRED += mcpu=leon3
+MULTILIB_REQUIRED += mcpu=leon3/msoft-float
+MULTILIB_REQUIRED += mcpu=leon3/mflat
+MULTILIB_REQUIRED += mcpu=leon3/msoft-float/mflat
+
+MULTILIB_REQUIRED += mcpu=leon3v7
+MULTILIB_REQUIRED += mcpu=leon3v7/msoft-float
+MULTILIB_REQUIRED += mcpu=leon3v7/mflat
+MULTILIB_REQUIRED += mcpu=leon3v7/msoft-float/mflat