1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2002 Benno Rice.  All rights reserved.
5 * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the author nor the names of any contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	$NetBSD: SYS.h,v 1.8 2002/01/14 00:55:56 thorpej Exp $
32 * $FreeBSD$
33 */
34
35#include <sys/syscall.h>
36#include <machine/asm.h>
37
38#define	_SYSCALL(name)						\
39	.text;							\
40	.align 2;						\
41	li	0,(SYS_##name);					\
42	sc
43
44#define	SYSCALL(name)						\
45	.text;							\
46	.align 2;						\
472:	mflr	%r0;						\
48	std	%r0,16(%r1);					\
49	stdu	%r1,-48(%r1);					\
50	bl	CNAME(HIDENAME(cerror));			\
51	nop;							\
52	addi	%r1,%r1,48;					\
53	ld	%r0,16(%r1);					\
54	mtlr	%r0;						\
55	blr;							\
56ENTRY(__sys_##name);						\
57	WEAK_REFERENCE(__sys_##name, name);			\
58	WEAK_REFERENCE(__sys_##name, _##name);			\
59	_SYSCALL(name);						\
60	bso	2b
61
62#define	PSEUDO(name)						\
63	.text;							\
64	.align 2;						\
65ENTRY(__sys_##name);						\
66	WEAK_REFERENCE(__sys_##name, _##name);			\
67	_SYSCALL(name);						\
68	bnslr;							\
69	mflr	%r0;						\
70	std	%r0,16(%r1);					\
71	stdu	%r1,-48(%r1);					\
72	bl	CNAME(HIDENAME(cerror));			\
73	nop;							\
74	addi	%r1,%r1,48;					\
75	ld	%r0,16(%r1);					\
76	mtlr	%r0;						\
77	blr;
78
79#define	RSYSCALL(name)						\
80	.text;							\
81	.align 2;						\
82ENTRY(__sys_##name);						\
83	WEAK_REFERENCE(__sys_##name, name);			\
84	WEAK_REFERENCE(__sys_##name, _##name);			\
85	_SYSCALL(name);						\
86	bnslr;							\
87								\
88	mflr	%r0;						\
89	std	%r0,16(%r1);					\
90	stdu	%r1,-48(%r1);					\
91	bl	CNAME(HIDENAME(cerror));			\
92	nop;							\
93	addi	%r1,%r1,48;					\
94	ld	%r0,16(%r1);					\
95	mtlr	%r0;						\
96	blr;
97