1 /*- 2 * Copyright (c) 2014 Andrew Turner 3 * Copyright (c) 2015 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * This software was developed by Andrew Turner under 7 * sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 #include <sys/syscall.h> 34 #include <machine/asm.h> 35 36 #define _SYSCALL(name) \ 37 mov x8, SYS_ ## name; \ 38 svc 0 39 40 #define SYSCALL(name) \ 41 ENTRY(__sys_##name); \ 42 WEAK_REFERENCE(__sys_##name, name); \ 43 WEAK_REFERENCE(__sys_##name, _##name); \ 44 _SYSCALL(name); \ 45 ret; \ 46 END(__sys_##name) 47 48 #define PSEUDO(name) \ 49 ENTRY(__sys_##name); \ 50 WEAK_REFERENCE(__sys_##name, _##name); \ 51 _SYSCALL(name); \ 52 b.cs cerror; \ 53 ret; \ 54 END(__sys_##name) 55 56 #define RSYSCALL(name) \ 57 ENTRY(__sys_##name); \ 58 WEAK_REFERENCE(__sys_##name, name); \ 59 WEAK_REFERENCE(__sys_##name, _##name); \ 60 _SYSCALL(name); \ 61 b.cs cerror; \ 62 ret; \ 63 END(__sys_##name) 64