xref: /freebsd/lib/libsys/powerpc/SYS.h (revision e2257b3168fc1697518265527e5d817eca6c43b8)
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  */
33 
34 #include <sys/syscall.h>
35 #include <machine/asm.h>
36 
37 #define	_SYSCALL(name)						\
38 	.text;							\
39 	.align 2;						\
40 	li	0,(SYS_##name);					\
41 	sc
42 
43 #ifndef _SYSCALL_BODY
44 #define	_SYSCALL_BODY(name)					\
45 	_SYSCALL(name);						\
46 	bnslr;							\
47 	b	CNAME(HIDENAME(cerror))
48 #endif
49 
50 #define	PSEUDO(name)						\
51 	.text;							\
52 	.align 2;						\
53 ENTRY(__sys_##name);						\
54 	WEAK_REFERENCE(__sys_##name, _##name);			\
55 	_SYSCALL_BODY(name);					\
56 END(__sys_##name)
57 
58 #define	RSYSCALL(name)						\
59 	.text;							\
60 	.align 2;						\
61 ENTRY(__sys_##name);						\
62 	WEAK_REFERENCE(__sys_##name, name);			\
63 	WEAK_REFERENCE(__sys_##name, _##name);			\
64 	_SYSCALL_BODY(name);					\
65 END(__sys_##name)
66