SYS.h revision 137464 
1/*	$NetBSD: SYS.h,v 1.8 2003/08/07 16:42:02 agc Exp $	*/
2
3/*-
4 * Copyright (c) 1990 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * William Jolitz.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 *	from: @(#)SYS.h	5.5 (Berkeley) 5/7/91
35 * $FreeBSD: head/lib/libc/arm/SYS.h 137464 2004-11-09 16:49:14Z cognet $
36 */
37
38#include <machine/asm.h>
39#include <sys/syscall.h>
40#include <machine/swi.h>
41
42#ifdef __STDC__
43#define SYSTRAP(x)	swi 0 | SYS_ ## x
44#else
45#define SYSTRAP(x)	swi 0 | SYS_/**/x
46#endif
47
48#ifdef __ELF__
49#define	CERROR		_C_LABEL(cerror)
50#define	CURBRK		_C_LABEL(curbrk)
51#else
52#define	CERROR		_ASM_LABEL(cerror)
53#define	CURBRK		_ASM_LABEL(curbrk)
54#endif
55
56#define _SYSCALL_NOERROR(x)						\
57	ENTRY(__CONCAT(__sys_, x));					\
58	.weak _C_LABEL(x);						\
59	.set _C_LABEL(x), _C_LABEL(__CONCAT(__sys_,x));			\
60	.weak _C_LABEL(__CONCAT(_,x));					\
61	.set _C_LABEL(__CONCAT(_,x)),_C_LABEL(__CONCAT(__sys_,x));	\
62	SYSTRAP(x)
63
64#define _SYSCALL(x)							\
65	_SYSCALL_NOERROR(x);						\
66	bcs PIC_SYM(CERROR, PLT)
67
68#define SYSCALL_NOERROR(x)						\
69	_SYSCALL_NOERROR(x)
70
71#define SYSCALL(x)							\
72	_SYSCALL(x)
73
74
75#define PSEUDO_NOERROR(x)						\
76	_SYSCALL_NOERROR(x);						\
77	RET
78
79#define PSEUDO(x)							\
80	_SYSCALL(x);							\
81	RET
82
83
84#define RSYSCALL_NOERROR(x)						\
85	PSEUDO_NOERROR(x)
86
87#define RSYSCALL(x)							\
88	PSEUDO(x)
89
90	.globl  CERROR
91