config.gcc (microblaze*-*-rtems*): New target.

2012-10-25  Ralf Corsépius  <ralf.corsepius@rtems.org>

	* config.gcc (microblaze*-*-rtems*): New target.
	* config/microblaze/rtems.h: New.
	* config/microblaze/t-rtems: New.

From-SVN: r192815

gcc/ChangeLog

+2012-10-25  Ralf Corsépius  <ralf.corsepius@rtems.org>
+
+	* config.gcc (microblaze*-*-rtems*): New target.
+	* config/microblaze/rtems.h: New.
+	* config/microblaze/t-rtems: New.
+
 2012-10-25  Jan Hubicka  <jh@suse.cz>
 
 	PR tree-optimize/54980

gcc/config.gcc

@@ -1727,6 +1727,14 @@ microblaze*-linux*)
 	c_target_objs="${c_target_objs} microblaze-c.o"
 	cxx_target_objs="${cxx_target_objs} microblaze-c.o"
 	;;
+microblaze*-*-rtems*)
+	tm_file="${tm_file} dbxelf.h"
+	tm_file="${tm_file} microblaze/rtems.h rtems.h newlib-stdint.h"
+	c_target_objs="${c_target_objs} microblaze-c.o"
+	cxx_target_objs="${cxx_target_objs} microblaze-c.o"
+	tmake_file="${tmake_file} microblaze/t-microblaze"
+	tmake_file="${tmake_file} t-rtems microblaze/t-rtems"
+        ;;
 microblaze*-*-*)
         tm_file="${tm_file} dbxelf.h"
 	c_target_objs="${c_target_objs} microblaze-c.o"

gcc/config/microblaze/rtems.h

+/* Definitions for rtems targeting a microblaze using ELF.
+   Copyright (C) 2012 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/>.  */
+
+/* Specify predefined symbols in preprocessor.  */
+
+#define TARGET_OS_CPP_BUILTINS() do {		\
+  builtin_define( "__rtems__" );		\
+  builtin_assert( "system=rtems" );		\
+} while (0)

gcc/config/microblaze/t-rtems

+# Custom multilibs for RTEMS