1/*-
2 * Copyright (c) 2002 Benno Rice.  All rights reserved.
3 * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of any contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	$NetBSD: SYS.h,v 1.8 2002/01/14 00:55:56 thorpej Exp $
30 * $FreeBSD$
31 */
32
33#include <sys/syscall.h>
34#include <machine/asm.h>
35
36#define	_SYSCALL(name)						\
37	.text;							\
38	.align 2;						\
39	li	0,(SYS_##name);					\
40	sc
41
42#define	SYSCALL(name)						\
43	.text;							\
44	.align 2;						\
452:	mflr	%r0;						\
46	std	%r0,16(%r1);					\
47	stdu	%r1,-48(%r1);					\
48	bl	CNAME(HIDENAME(cerror));			\
49	nop;							\
50	addi	%r1,%r1,48;					\
51	ld	%r0,16(%r1);					\
52	mtlr	%r0;						\
53	blr;							\
54ENTRY(__sys_##name);						\
55	WEAK_REFERENCE(__sys_##name, name);			\
56	WEAK_REFERENCE(__sys_##name, _##name);			\
57	_SYSCALL(name);						\
58	bso	2b
59
60#define	PSEUDO(name)						\
61	.text;							\
62	.align 2;						\
63ENTRY(__sys_##name);						\
64	WEAK_REFERENCE(__sys_##name, _##name);			\
65	_SYSCALL(name);						\
66	bnslr;							\
67	mflr	%r0;						\
68	std	%r0,16(%r1);					\
69	stdu	%r1,-48(%r1);					\
70	bl	CNAME(HIDENAME(cerror));			\
71	nop;							\
72	addi	%r1,%r1,48;					\
73	ld	%r0,16(%r1);					\
74	mtlr	%r0;						\
75	blr;
76
77#define	RSYSCALL(name)						\
78	.text;							\
79	.align 2;						\
80ENTRY(__sys_##name);						\
81	WEAK_REFERENCE(__sys_##name, name);			\
82	WEAK_REFERENCE(__sys_##name, _##name);			\
83	_SYSCALL(name);						\
84	bnslr;							\
85								\
86	mflr	%r0;						\
87	std	%r0,16(%r1);					\
88	stdu	%r1,-48(%r1);					\
89	bl	CNAME(HIDENAME(cerror));			\
90	nop;							\
91	addi	%r1,%r1,48;					\
92	ld	%r0,16(%r1);					\
93	mtlr	%r0;						\
94	blr;
95