1 /* $NetBSD: SYS.h,v 1.4 2002/02/10 14:10:59 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 #ifdef __APCS_26__ 74 75 #define PSEUDO_NOERROR(x,y) \ 76 _SYSCALL_NOERROR(x,y); \ 77 movs r15, r14 78 79 #define PSEUDO(x,y) \ 80 _SYSCALL(x,y); \ 81 movs r15, r14 82 83 #else /* !__APCS_26__ */ 84 85 #define PSEUDO_NOERROR(x,y) \ 86 _SYSCALL_NOERROR(x,y); \ 87 mov r15, r14 88 89 #define PSEUDO(x,y) \ 90 _SYSCALL(x,y); \ 91 mov r15, r14 92 93 #endif /* !__APCS_26__ */ 94 95 #define RSYSCALL_NOERROR(x) \ 96 PSEUDO_NOERROR(x,x) 97 98 #define RSYSCALL(x) \ 99 PSEUDO(x,x) 100 101 #ifdef WEAK_ALIAS 102 #define WSYSCALL(weak,strong) \ 103 WEAK_ALIAS(weak,strong); \ 104 PSEUDO(strong,weak) 105 #else 106 #define WSYSCALL(weak,strong) \ 107 PSEUDO(weak,weak) 108 #endif 109 110 .globl CERROR 111