xref: /netbsd-src/lib/libc/arch/i386/SYS.h (revision 76dfffe33547c37f8bdd446e3e4ab0f3c16cea4b)
1 /*-
2  * Copyright (c) 1990 The Regents of the University of California.
3  * All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * William Jolitz.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by the University of
19  *	California, Berkeley and its contributors.
20  * 4. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  *	from: @(#)SYS.h	5.5 (Berkeley) 5/7/91
37  *	$Id: SYS.h,v 1.10 1996/10/17 18:14:56 jtc Exp $
38  */
39 
40 #include <machine/asm.h>
41 #include <sys/syscall.h>
42 
43 #ifdef __STDC__
44 #define SYSTRAP(x)	movl $(SYS_ ## x),%eax; int $0x80
45 #else
46 #define SYSTRAP(x)	movl $(SYS_/**/x),%eax; int $0x80
47 #endif
48 
49 #define	SYSCALL(x)	.text; .align 2; 2: jmp PIC_PLT(cerror); ENTRY(x); SYSTRAP(x); jc 2b
50 
51 #define SYSCALL_NOERROR(x) \
52 	ENTRY(x); \
53 	SYSTRAP(x)
54 
55 #define	RSYSCALL(x) \
56 	SYSCALL(x); \
57 	ret
58 
59 #define RSYSCALL_NOERROR(x) \
60 	SYSCALL_NOERROR(x); \
61 	ret
62 
63 #define	PSEUDO(x,y) \
64 	ENTRY(x); \
65 	SYSTRAP(y); \
66 	ret
67 
68 	.globl	cerror
69