1 /* $NetBSD: SYS.h,v 1.8 2003/08/07 16:42:02 agc Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 * Copyright (c) 1990 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * William Jolitz. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 */ 36 37 #include <machine/asm.h> 38 #include <sys/syscall.h> 39 40 #define _SYSCALL(x) \ 41 mov ip, r7; \ 42 ldr r7, =SYS_ ## x; \ 43 swi 0; \ 44 mov r7, ip 45 46 #define CERROR _C_LABEL(cerror) 47 48 #ifndef _SYSCALL_BODY 49 #define _SYSCALL_BODY(x) \ 50 _SYSCALL(x); \ 51 it cs; \ 52 bcs PIC_SYM(CERROR, PLT); \ 53 RET 54 #endif 55 56 #define PSEUDO(x) \ 57 ENTRY(__CONCAT(__sys_, x)); \ 58 .weak _C_LABEL(__CONCAT(_,x)); \ 59 .set _C_LABEL(__CONCAT(_,x)),_C_LABEL(__CONCAT(__sys_,x)); \ 60 _SYSCALL_BODY(x) 61 62 #define RSYSCALL(x) \ 63 ENTRY(__CONCAT(__sys_, x)); \ 64 .weak _C_LABEL(x); \ 65 .set _C_LABEL(x), _C_LABEL(__CONCAT(__sys_,x)); \ 66 .weak _C_LABEL(__CONCAT(_,x)); \ 67 .set _C_LABEL(__CONCAT(_,x)),_C_LABEL(__CONCAT(__sys_,x)); \ 68 _SYSCALL_BODY(x); \ 69 70 .globl CERROR 71