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Annotation of XNU/osfmk/i386/trap.h, revision 1.1.1.1

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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