1 /* 2 * Copyright (c) 2000-2012 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * @OSF_COPYRIGHT@ 30 */ 31 /* 32 * Mach Operating System 33 * Copyright (c) 1991,1990 Carnegie Mellon University 34 * All Rights Reserved. 35 * 36 * Permission to use, copy, modify and distribute this software and its 37 * documentation is hereby granted, provided that both the copyright 38 * notice and this permission notice appear in all copies of the 39 * software, derivative works or modified versions, and any portions 40 * thereof, and that both notices appear in supporting documentation. 41 * 42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 43 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 45 * 46 * Carnegie Mellon requests users of this software to return to 47 * 48 * Software Distribution Coordinator or [email protected] 49 * School of Computer Science 50 * Carnegie Mellon University 51 * Pittsburgh PA 15213-3890 52 * 53 * any improvements or extensions that they make and grant Carnegie Mellon 54 * the rights to redistribute these changes. 55 */ 56 /* 57 */ 58 59 #ifndef _I386_TRAP_H_ 60 #define _I386_TRAP_H_ 61 62 /* 63 * Hardware trap vectors for i386. 64 */ 65 #define T_DIVIDE_ERROR 0 66 #define T_DEBUG 1 67 #define T_NMI 2 /* non-maskable interrupt */ 68 #define T_INT3 3 /* int 3 instruction */ 69 #define T_OVERFLOW 4 /* overflow test */ 70 #define T_OUT_OF_BOUNDS 5 /* bounds check */ 71 #define T_INVALID_OPCODE 6 /* invalid op code */ 72 #define T_NO_FPU 7 /* no floating point */ 73 #define T_DOUBLE_FAULT 8 /* double fault */ 74 #define T_FPU_FAULT 9 75 #define T_INVALID_TSS 10 76 #define T_SEGMENT_NOT_PRESENT 11 77 #define T_STACK_FAULT 12 78 #define T_GENERAL_PROTECTION 13 79 #define T_PAGE_FAULT 14 80 /* 15 */ 81 #define T_FLOATING_POINT_ERROR 16 82 #define T_WATCHPOINT 17 83 #define T_MACHINE_CHECK 18 84 #define T_SSE_FLOAT_ERROR 19 85 /* 20-126 */ 86 #define T_DTRACE_RET 127 87 88 /* The SYSENTER and SYSCALL trap numbers are software constructs. 89 * These exceptions are dispatched directly to the system call handlers. 90 * See also the "software interrupt codes" section of 91 * osfmk/mach/i386/syscall_sw.h 92 */ 93 #define T_SYSENTER 0x84 94 #define T_SYSCALL 0x85 95 96 #define T_PREEMPT 255 97 98 #define TRAP_NAMES "divide error", "debug trap", "NMI", "breakpoint", \ 99 "overflow", "bounds check", "invalid opcode", \ 100 "no coprocessor", "double fault", "coprocessor overrun", \ 101 "invalid TSS", "segment not present", "stack bounds", \ 102 "general protection", "page fault", "(reserved)", \ 103 "coprocessor error", "watchpoint", "machine check", "SSE floating point" 104 105 /* 106 * Page-fault trap codes. 107 */ 108 #define T_PF_PROT 0x1 /* protection violation */ 109 #define T_PF_WRITE 0x2 /* write access */ 110 #define T_PF_USER 0x4 /* from user state */ 111 112 #define T_PF_RSVD 0x8 /* reserved bit set to 1 */ 113 #define T_PF_EXECUTE 0x10 /* instruction fetch when NX */ 114 115 #if defined(MACH_KERNEL_PRIVATE) 116 117 #if !defined(ASSEMBLER) && defined(MACH_KERNEL) 118 119 #include <i386/thread.h> 120 121 #define DEFAULT_PANIC_ON_TRAP_MASK ((1U << T_INVALID_OPCODE) | \ 122 (1U << T_GENERAL_PROTECTION) | \ 123 (1U << T_PAGE_FAULT) | \ 124 (1U << T_SEGMENT_NOT_PRESENT) | \ 125 (1U << T_STACK_FAULT)) 126 127 128 extern void i386_exception( 129 int exc, 130 mach_exception_code_t code, 131 mach_exception_subcode_t subcode); 132 133 extern void sync_iss_to_iks(x86_saved_state_t *regs); 134 135 extern void sync_iss_to_iks_unconditionally( 136 x86_saved_state_t *regs); 137 138 extern void kernel_trap(x86_saved_state_t *regs, uintptr_t *lo_spp); 139 140 extern void user_trap(x86_saved_state_t *regs); 141 142 extern void interrupt(x86_saved_state_t *regs); 143 144 extern void panic_double_fault64(x86_saved_state_t *regs) __abortlike; 145 extern void panic_machine_check64(x86_saved_state_t *regs) __abortlike; 146 147 typedef kern_return_t (*perfCallback)( 148 int trapno, 149 void *regs, 150 uintptr_t *lo_spp, 151 int); 152 153 extern void panic_i386_backtrace(void *, int, const char *, boolean_t, x86_saved_state_t *); 154 extern void print_one_backtrace(pmap_t pmap, vm_offset_t topfp, const char *cur_marker, boolean_t is_64_bit); 155 extern void print_thread_num_that_crashed(task_t task); 156 extern void print_tasks_user_threads(task_t task); 157 extern void print_threads_registers(thread_t thread); 158 extern void print_uuid_info(task_t task); 159 extern void print_launchd_info(void); 160 161 #if MACH_KDP 162 extern boolean_t kdp_i386_trap( 163 unsigned int, 164 x86_saved_state64_t *, 165 kern_return_t, 166 vm_offset_t); 167 #endif /* MACH_KDP */ 168 #endif /* !ASSEMBLER && MACH_KERNEL */ 169 170 #endif /* MACH_KERNEL_PRIVATE */ 171 172 #endif /* _I386_TRAP_H_ */ 173