1 /* $NetBSD: SYS.h,v 1.1 2014/08/10 05:47:36 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Matt Thomas of 3am Software Foundry. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <machine/asm.h> 33 #include <sys/syscall.h> 34 35 #ifndef __STDC__ 36 #error __STDC__ not defined 37 #endif 38 39 #define SYSTRAP(x) svc #(SYS_ ## x) 40 41 #define _SYSCALL_NOERROR(x,y) \ 42 ENTRY(x); \ 43 SYSTRAP(y) 44 45 #define _INVOKE_CERROR() \ 46 b.cs _C_LABEL(__cerror) 47 48 #define _SYSCALL(x, y) \ 49 _SYSCALL_NOERROR(x,y); \ 50 _INVOKE_CERROR() 51 52 #define SYSCALL_NOERROR(x) \ 53 _SYSCALL_NOERROR(x,x) 54 55 #define SYSCALL(x) \ 56 _SYSCALL(x,x) 57 58 #define PSEUDO_NOERROR(x,y) \ 59 _SYSCALL_NOERROR(x,y); \ 60 ret; \ 61 END(x) 62 63 #define PSEUDO(x,y) \ 64 _SYSCALL(x,y); \ 65 ret; \ 66 END(x) 67 68 #define RSYSCALL_NOERROR(x) \ 69 PSEUDO_NOERROR(x,x) 70 71 #define RSYSCALL(x) \ 72 PSEUDO(x,x) 73 74 #define WSYSCALL(weak,strong) \ 75 WEAK_ALIAS(weak,strong); \ 76 PSEUDO(strong,weak) 77 78 .hidden __cerror 79 .globl __cerror 80