SYS.h revision 1.3
1/* $NetBSD: SYS.h,v 1.3 2002/01/14 00:55:55 thorpej 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 44#ifdef __STDC__ 45#define SYSTRAP(x) swi SYS_ ## x 46#else 47#define SYSTRAP(x) swi SYS_/**/x 48#endif 49 50#ifdef __ELF__ 51#define CERROR _C_LABEL(__cerror) 52#define CURBRK _C_LABEL(__curbrk) 53#else 54#define CERROR _ASM_LABEL(cerror) 55#define CURBRK _ASM_LABEL(curbrk) 56#endif 57 58#define _SYSCALL_NOERROR(x,y) \ 59 ENTRY(x); \ 60 SYSTRAP(y) 61 62#define _SYSCALL(x, y) \ 63 _SYSCALL_NOERROR(x,y); \ 64 bcs PIC_SYM(CERROR, PLT) 65 66#define SYSCALL_NOERROR(x) \ 67 _SYSCALL_NOERROR(x,x) 68 69#define SYSCALL(x) \ 70 _SYSCALL(x,x) 71 72#ifdef __APCS_26__ 73 74#define PSEUDO_NOERROR(x,y) \ 75 _SYSCALL_NOERROR(x,y); \ 76 movs r15, r14 77 78#define PSEUDO(x,y) \ 79 _SYSCALL(x,y); \ 80 movs r15, r14 81 82#else /* !__APCS_26__ */ 83 84#define PSEUDO_NOERROR(x,y) \ 85 _SYSCALL_NOERROR(x,y); \ 86 mov r15, r14 87 88#define PSEUDO(x,y) \ 89 _SYSCALL(x,y); \ 90 mov r15, r14 91 92#endif /* !__APCS_26__ */ 93 94#define RSYSCALL_NOERROR(x) \ 95 PSEUDO_NOERROR(x,x) 96 97#define RSYSCALL(x) \ 98 PSEUDO(x,x) 99 100#ifdef WEAK_ALIAS 101#define WSYSCALL(weak,strong) \ 102 WEAK_ALIAS(weak,strong); \ 103 PSEUDO(strong,weak) 104#else 105#define WSYSCALL(weak,strong) \ 106 PSEUDO(weak,weak) 107#endif 108 109 .globl CERROR 110