1 /* $NetBSD: fault.h,v 1.2 2020/06/30 16:28:17 maxv Exp $ */ 2 3 /* 4 * Copyright (c) 2020 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Maxime Villard. 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 #ifndef _SYS_FAULT_H_ 33 #define _SYS_FAULT_H_ 34 35 #ifdef _KERNEL_OPT 36 #include "opt_fault.h" 37 #endif 38 39 #if !defined(_KERNEL) || defined(FAULT) 40 41 #define FAULT_SCOPE_GLOBAL 0 42 #define FAULT_SCOPE_LWP 1 43 44 #define FAULT_MODE_NTH_ONESHOT 0 45 46 #define FAULT_NTH_MIN 2 47 48 struct fault_ioc_enable { 49 int scope; 50 int mode; 51 union { 52 unsigned long nth; 53 }; 54 }; 55 56 struct fault_ioc_disable { 57 int scope; 58 }; 59 60 struct fault_ioc_getinfo { 61 int scope; 62 unsigned long nfaults; 63 }; 64 65 #define FAULT_IOC_ENABLE _IOW ('F', 1, struct fault_ioc_enable) 66 #define FAULT_IOC_DISABLE _IOW ('F', 2, struct fault_ioc_disable) 67 #define FAULT_IOC_GETINFO _IOWR('F', 3, struct fault_ioc_getinfo) 68 69 #endif /* !_KERNEL || FAULT */ 70 71 #ifdef _KERNEL 72 #ifdef FAULT 73 bool fault_inject(void); 74 #else 75 #define fault_inject() false 76 #endif 77 #endif /* _KERNEL */ 78 79 #endif /* !_SYS_FAULT_H_ */ 80