[libgloss]

* configure.in: Add rl78.
* configure: Regenerate.
* rl78: New directory

[newlib]
* configure.host: Add rl78.
* libc/include/machine/ieeefp.h: Add rl78 support.
* libc/include/machine/setjmp.h: Add rl78 support.
* libc/machine/configure.in: Add rl78.
* libc/machine/rl78: New directory.

libgloss/rl78/rl78-sys.h

@@ -0,0 +1,84 @@
+/*
+
+Copyright (c) 2011 Red Hat Incorporated.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without 
+modification, are permitted provided that the following conditions are met: 
+
+    Redistributions of source code must retain the above copyright 
+    notice, this list of conditions and the following disclaimer.
+
+    Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+
+    The name of Red Hat Incorporated may not be used to endorse 
+    or promote products derived from this software without specific 
+    prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED.  IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+
+*/
+
+#include "syscall.h"
+
+r8	=	0xffef0
+r9	=	0xffef1
+r10	=	0xffef2
+r11	=	0xffef3
+r12	=	0xffef4
+r13	=	0xffef5
+r14	=	0xffef6
+r15	=	0xffef7
+r16	=	0xffee8
+r17	=	0xffee9
+r18	=	0xffeea
+r19	=	0xffeeb
+r20	=	0xffeec
+r21	=	0xffeed
+r22	=	0xffeee
+r23	=	0xffeef
+
+#define SYS__exit  SYS_exit
+
+	.macro syscall_body  number
+	 /* The RL78 doesn't really have an "interrupt" upcode, just
+	    BRK, which we emulate exactly.  We use the STOP opcode,
+	    which is a breakpoint in the simulator.  */
+	mov	A, #\number
+	stop
+	ret
+	.endm
+      
+	.macro do_syscall  name number
+__\name:
+	.global __\name
+_\name:
+        .weak _\name
+	syscall_body \number
+	.endm
+
+   .macro	syscall_returns	name number
+__\name:
+	.global __\name
+_\name:
+        .weak _\name
+	mov	r8, #\number
+	ret
+	.endm
+
+#define S(name)         do_syscall	name, SYS_##name
+#define SYSCALL(number)	syscall_body	number
+#define ERR(name)	syscall_returns	name, -1
+#define OK(name)	syscall_returns	name, 0
+#define RET(name,val)	syscall_returns	name, val