/* * Copyright (c) 2000-2012 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* */ #ifndef _I386_TRAP_H_ #define _I386_TRAP_H_ /* * Hardware trap vectors for i386. */ #define T_DIVIDE_ERROR 0 #define T_DEBUG 1 #define T_NMI 2 /* non-maskable interrupt */ #define T_INT3 3 /* int 3 instruction */ #define T_OVERFLOW 4 /* overflow test */ #define T_OUT_OF_BOUNDS 5 /* bounds check */ #define T_INVALID_OPCODE 6 /* invalid op code */ #define T_NO_FPU 7 /* no floating point */ #define T_DOUBLE_FAULT 8 /* double fault */ #define T_FPU_FAULT 9 #define T_INVALID_TSS 10 #define T_SEGMENT_NOT_PRESENT 11 #define T_STACK_FAULT 12 #define T_GENERAL_PROTECTION 13 #define T_PAGE_FAULT 14 /* 15 */ #define T_FLOATING_POINT_ERROR 16 #define T_WATCHPOINT 17 #define T_MACHINE_CHECK 18 #define T_SSE_FLOAT_ERROR 19 /* 20-126 */ #define T_DTRACE_RET 127 /* The SYSENTER and SYSCALL trap numbers are software constructs. * These exceptions are dispatched directly to the system call handlers. * See also the "software interrupt codes" section of * osfmk/mach/i386/syscall_sw.h */ #define T_SYSENTER 0x84 #define T_SYSCALL 0x85 #define T_PREEMPT 255 #define TRAP_NAMES "divide error", "debug trap", "NMI", "breakpoint", \ "overflow", "bounds check", "invalid opcode", \ "no coprocessor", "double fault", "coprocessor overrun", \ "invalid TSS", "segment not present", "stack bounds", \ "general protection", "page fault", "(reserved)", \ "coprocessor error", "watchpoint", "machine check", "SSE floating point" /* * Page-fault trap codes. */ #define T_PF_PROT 0x1 /* protection violation */ #define T_PF_WRITE 0x2 /* write access */ #define T_PF_USER 0x4 /* from user state */ #ifdef PAE #define T_PF_RSVD 0x8 /* reserved bit set to 1 */ #define T_PF_EXECUTE 0x10 /* instruction fetch when NX */ #endif #if !defined(ASSEMBLER) && defined(MACH_KERNEL) #include <i386/thread.h> extern void i386_exception( int exc, mach_exception_code_t code, mach_exception_subcode_t subcode); extern void sync_iss_to_iks(x86_saved_state_t *regs); extern void sync_iss_to_iks_unconditionally( x86_saved_state_t *regs); extern void kernel_trap(x86_saved_state_t *regs, uintptr_t *lo_spp); extern void user_trap(x86_saved_state_t *regs); extern void interrupt(x86_saved_state_t *regs); extern void panic_double_fault64(x86_saved_state_t *regs); extern void panic_machine_check64(x86_saved_state_t *regs); extern void i386_astintr(int preemption); typedef kern_return_t (*perfCallback)( int trapno, void *regs, uintptr_t *lo_spp, int); typedef kern_return_t (*perfASTCallback)(ast_t reasons, ast_t *myast); extern volatile perfCallback perfTrapHook; extern volatile perfASTCallback perfASTHook; extern volatile perfCallback perfIntHook; extern void panic_i386_backtrace(void *, int, const char *, boolean_t, x86_saved_state_t *); #if MACH_KDP extern boolean_t kdp_i386_trap( unsigned int, x86_saved_state64_t *, kern_return_t, vm_offset_t); #endif /* MACH_KDP */ #endif /* !ASSEMBLER && MACH_KERNEL */ #endif /* _I386_TRAP_H_ */