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Annotation of XNU/osfmk/i386/trap.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * @OSF_COPYRIGHT@
        !            24:  */
        !            25: /* 
        !            26:  * Mach Operating System
        !            27:  * Copyright (c) 1991,1990 Carnegie Mellon University
        !            28:  * All Rights Reserved.
        !            29:  * 
        !            30:  * Permission to use, copy, modify and distribute this software and its
        !            31:  * documentation is hereby granted, provided that both the copyright
        !            32:  * notice and this permission notice appear in all copies of the
        !            33:  * software, derivative works or modified versions, and any portions
        !            34:  * thereof, and that both notices appear in supporting documentation.
        !            35:  * 
        !            36:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            37:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            38:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            39:  * 
        !            40:  * Carnegie Mellon requests users of this software to return to
        !            41:  * 
        !            42:  *  Software Distribution Coordinator  or  [email protected]
        !            43:  *  School of Computer Science
        !            44:  *  Carnegie Mellon University
        !            45:  *  Pittsburgh PA 15213-3890
        !            46:  * 
        !            47:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            48:  * the rights to redistribute these changes.
        !            49:  */
        !            50: /*
        !            51:  */
        !            52: 
        !            53: #ifndef        _I386_TRAP_H_
        !            54: #define        _I386_TRAP_H_
        !            55: 
        !            56: /*
        !            57:  * Hardware trap vectors for i386.
        !            58:  */
        !            59: #define        T_DIVIDE_ERROR          0
        !            60: #define        T_DEBUG                 1
        !            61: #define        T_NMI                   2               /* non-maskable interrupt */
        !            62: #define        T_INT3                  3               /* int 3 instruction */
        !            63: #define        T_OVERFLOW              4               /* overflow test */
        !            64: #define        T_OUT_OF_BOUNDS         5               /* bounds check */
        !            65: #define        T_INVALID_OPCODE        6               /* invalid op code */
        !            66: #define        T_NO_FPU                7               /* no floating point */
        !            67: #define        T_DOUBLE_FAULT          8               /* double fault */
        !            68: #define        T_FPU_FAULT             9
        !            69: /*                             10 */
        !            70: #define        T_SEGMENT_NOT_PRESENT   11
        !            71: #define        T_STACK_FAULT           12
        !            72: #define        T_GENERAL_PROTECTION    13
        !            73: #define        T_PAGE_FAULT            14
        !            74: /*                             15 */
        !            75: #define        T_FLOATING_POINT_ERROR  16
        !            76: #define        T_WATCHPOINT            17
        !            77: #define T_PREEMPT              255
        !            78: 
        !            79: #define TRAP_NAMES "divide error", "debug trap", "NMI", "breakpoint", \
        !            80:                   "overflow", "bounds check", "invalid opcode", \
        !            81:                   "no coprocessor", "double fault", "coprocessor overrun", \
        !            82:                   "invalid TSS", "segment not present", "stack bounds", \
        !            83:                   "general protection", "page fault", "(reserved)", \
        !            84:                   "coprocessor error", "watchpoint"
        !            85: 
        !            86: /*
        !            87:  * Page-fault trap codes.
        !            88:  */
        !            89: #define        T_PF_PROT               0x1             /* protection violation */
        !            90: #define        T_PF_WRITE              0x2             /* write access */
        !            91: #define        T_PF_USER               0x4             /* from user state */
        !            92: 
        !            93: #if !defined(ASSEMBLER) && defined(MACH_KERNEL)
        !            94: 
        !            95: #include <i386/thread.h>
        !            96: 
        !            97: extern void            i386_exception(
        !            98:                                int             exc,
        !            99:                                int             code,
        !           100:                                int             subcode);
        !           101: 
        !           102: extern void            thread_exception_return(void);
        !           103: 
        !           104: extern boolean_t       kernel_trap(
        !           105:                                struct i386_saved_state *regs);
        !           106: 
        !           107: extern void            panic_trap(
        !           108:                                struct i386_saved_state *regs);
        !           109: 
        !           110: extern void            user_trap(
        !           111:                                struct i386_saved_state *regs);
        !           112: 
        !           113: extern void            i386_astintr(int preemption);
        !           114: 
        !           115: #endif /* !ASSEMBLER && MACH_KERNEL */
        !           116: 
        !           117: #endif /* _I386_TRAP_H_ */

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