SYS.h revision 1.7 
1/*	$NetBSD: SYS.h,v 1.7 2003/04/05 23:08:50 bjh21 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. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *	This product includes software developed by the University of
21 *	California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 *	from: @(#)SYS.h	5.5 (Berkeley) 5/7/91
39 */
40
41#include <machine/asm.h>
42#include <sys/syscall.h>
43#include <arm/swi.h>
44
45#ifdef __STDC__
46#define SYSTRAP(x)	swi SWI_OS_NETBSD | SYS_ ## x
47#else
48#define SYSTRAP(x)	swi SWI_OS_NETBSD | SYS_/**/x
49#endif
50
51#ifdef __ELF__
52#define	CERROR		_C_LABEL(__cerror)
53#define	CURBRK		_C_LABEL(__curbrk)
54#else
55#define	CERROR		_ASM_LABEL(cerror)
56#define	CURBRK		_ASM_LABEL(curbrk)
57#endif
58
59#define _SYSCALL_NOERROR(x,y)						\
60	ENTRY(x);							\
61	SYSTRAP(y)
62
63#define _SYSCALL(x, y)							\
64	_SYSCALL_NOERROR(x,y);						\
65	bcs PIC_SYM(CERROR, PLT)
66
67#define SYSCALL_NOERROR(x)						\
68	_SYSCALL_NOERROR(x,x)
69
70#define SYSCALL(x)							\
71	_SYSCALL(x,x)
72
73
74#define PSEUDO_NOERROR(x,y)						\
75	_SYSCALL_NOERROR(x,y);						\
76	mov r15, r14
77
78#define PSEUDO(x,y)							\
79	_SYSCALL(x,y);							\
80	mov r15, r14
81
82
83#define RSYSCALL_NOERROR(x)						\
84	PSEUDO_NOERROR(x,x)
85
86#define RSYSCALL(x)							\
87	PSEUDO(x,x)
88
89#ifdef WEAK_ALIAS
90#define	WSYSCALL(weak,strong)						\
91	WEAK_ALIAS(weak,strong);					\
92	PSEUDO(strong,weak)
93#else
94#define	WSYSCALL(weak,strong)						\
95	PSEUDO(weak,weak)
96#endif
97
98	.globl	CERROR
99