config.gcc: Add avr-*-rtems*.

2004-11-23  Ralf Corsepius <ralf.corsepius@rtems.org>

	* config.gcc: Add avr-*-rtems*.
	* config/avr/t-rtems: New.
	* config/avr/rtems.h: New.

From-SVN: r91071

gcc/ChangeLog

+2004-11-23  Ralf Corsepius <ralf.corsepius@rtems.org>
+
+	* config.gcc: Add avr-*-rtems*.
+	* config/avr/t-rtems: New.
+	* config/avr/rtems.h: New.
+
 2004-11-22  Daniel Berlin  <dberlin@dberlin.org>
 
 	* df.c (dataflow_set_a_op_b): Remove reslt parameter, since it's

gcc/config.gcc

@@ -695,6 +695,10 @@ arm*-*-kaos*)
 	tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h kaos.h arm/kaos-arm.h"
 	tmake_file="arm/t-arm arm/t-arm-elf"
 	;;
+avr-*-rtems*)
+	tm_file="avr/avr.h dbxelf.h avr/rtems.h rtems.h"
+	tmake_files="avr/t-avr t-rtems avr/t-rtems"
+	;;
 avr-*-*)
 	tm_file="avr/avr.h dbxelf.h"
 	use_fixproto=yes

gcc/config/avr/rtems.h

+/* Definitions for rtems targeting a AVR using ELF.
+   Copyright (C) 2004 Free Software Foundation, Inc.
+   Contributed by Ralf Corsepius (ralf.corsepius@rtems.org).
+
+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 2, 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 COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Specify predefined symbols in preprocessor.  */
+
+#define TARGET_OS_CPP_BUILTINS()	\
+do {					\
+  builtin_define ("__rtems__");		\
+  builtin_define ("__USE_INIT_FINI__");	\
+  builtin_assert ("system=rtems");	\
+} while (0)

gcc/config/avr/t-rtems

+# Multilibs for avr RTEMS targets.
+
+# ATM, this is just a stub