SYS.h revision 1.12
1/* $NetBSD: SYS.h,v 1.12 2013/08/01 05:32:33 matt 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 */ 36 37#include <machine/asm.h> 38#include <sys/syscall.h> 39#include <arm/swi.h> 40 41#ifdef __STDC__ 42#define SYSTRAP(x) swi SWI_OS_NETBSD | SYS_ ## x 43#else 44#define SYSTRAP(x) swi SWI_OS_NETBSD | SYS_/**/x 45#endif 46 47#define CERROR _C_LABEL(__cerror) 48#define CURBRK _C_LABEL(__curbrk) 49 50#define _SYSCALL_NOERROR(x,y) \ 51 ENTRY(x); \ 52 SYSTRAP(y) 53 54#define _SYSCALL(x, y) \ 55 _SYSCALL_NOERROR(x,y); \ 56 bcs CERROR 57 58#define SYSCALL_NOERROR(x) \ 59 _SYSCALL_NOERROR(x,x) 60 61#define SYSCALL(x) \ 62 _SYSCALL(x,x) 63 64 65#define PSEUDO_NOERROR(x,y) \ 66 _SYSCALL_NOERROR(x,y); \ 67 RET 68 69#define PSEUDO(x,y) \ 70 _SYSCALL(x,y); \ 71 RET 72 73 74#define RSYSCALL_NOERROR(x) \ 75 PSEUDO_NOERROR(x,x) 76 77#define RSYSCALL(x) \ 78 PSEUDO(x,x) 79 80#ifdef WEAK_ALIAS 81#define WSYSCALL(weak,strong) \ 82 WEAK_ALIAS(weak,strong); \ 83 PSEUDO(strong,weak) 84#else 85#define WSYSCALL(weak,strong) \ 86 PSEUDO(weak,weak) 87#endif 88 89 .hidden CERROR 90 .globl CERROR 91