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 * $FreeBSD$ 36 */ 37 38 #include <machine/asm.h> 39 #include <sys/syscall.h> 40 #include <machine/swi.h> 41 42 #ifdef __ARM_EABI__ 43 #define SYSTRAP(x) \ 44 mov ip, r7; \ 45 ldr r7, =SYS_ ## x; \ 46 swi 0; \ 47 mov r7, ip 48 #else 49 #define SYSTRAP(x) swi 0 | SYS_ ## x 50 #endif 51 52 #define CERROR _C_LABEL(cerror) 53 #define CURBRK _C_LABEL(curbrk) 54 55 #define _SYSCALL_NOERROR(x) \ 56 ENTRY(__CONCAT(__sys_, x)); \ 57 .weak _C_LABEL(x); \ 58 .set _C_LABEL(x), _C_LABEL(__CONCAT(__sys_,x)); \ 59 .weak _C_LABEL(__CONCAT(_,x)); \ 60 .set _C_LABEL(__CONCAT(_,x)),_C_LABEL(__CONCAT(__sys_,x)); \ 61 SYSTRAP(x) 62 63 #define _SYSCALL(x) \ 64 _SYSCALL_NOERROR(x); \ 65 bcs PIC_SYM(CERROR, PLT) 66 67 #define SYSCALL(x) \ 68 _SYSCALL(x) 69 70 #define PSEUDO(x) \ 71 ENTRY(__CONCAT(__sys_, x)); \ 72 .weak _C_LABEL(__CONCAT(_,x)); \ 73 .set _C_LABEL(__CONCAT(_,x)),_C_LABEL(__CONCAT(__sys_,x)); \ 74 SYSTRAP(x); \ 75 bcs PIC_SYM(CERROR, PLT); \ 76 RET 77 78 #define RSYSCALL(x) \ 79 _SYSCALL(x); \ 80 RET 81 82 .globl CERROR 83