FreeBSD/Linux Kernel Cross Reference
sys/osfmk/mach/exception_types.h

     /*
      * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
      *
      * @APPLE_LICENSE_HEADER_START@
      * 
      * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
      * 
      * 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. 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_LICENSE_HEADER_END@
     */
    /*
     * @OSF_COPYRIGHT@
     */
    /* 
     * Mach Operating System
     * Copyright (c) 1991,1990,1989,1988,1987 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 _MACH_EXCEPTION_TYPES_H_
    #define _MACH_EXCEPTION_TYPES_H_
    
    #include <mach/machine/exception.h>
    
    /*
     *      Machine-independent exception definitions.
     */
    
    
    #define EXC_BAD_ACCESS          1       /* Could not access memory */
                    /* Code contains kern_return_t describing error. */
                    /* Subcode contains bad memory address. */
    
    #define EXC_BAD_INSTRUCTION     2       /* Instruction failed */
                    /* Illegal or undefined instruction or operand */
    
    #define EXC_ARITHMETIC          3       /* Arithmetic exception */
                    /* Exact nature of exception is in code field */
    
    #define EXC_EMULATION           4       /* Emulation instruction */
                    /* Emulation support instruction encountered */
                    /* Details in code and subcode fields   */
    
    #define EXC_SOFTWARE            5       /* Software generated exception */
                    /* Exact exception is in code field. */
                    /* Codes 0 - 0xFFFF reserved to hardware */
                    /* Codes 0x10000 - 0x1FFFF reserved for OS emulation (Unix) */
    
    #define EXC_BREAKPOINT          6       /* Trace, breakpoint, etc. */
                    /* Details in code field. */
    
    #define EXC_SYSCALL             7       /* System calls. */
    
    #define EXC_MACH_SYSCALL        8       /* Mach system calls. */
    
    #define EXC_RPC_ALERT           9       /* RPC alert */
    
    /*
     *      Machine-independent exception behaviors
     */
    
    # define EXCEPTION_DEFAULT              1
    /*      Send a catch_exception_raise message including the identity.
    */
   
   # define EXCEPTION_STATE                2
   /*      Send a catch_exception_raise_state message including the
    *      thread state.
    */
   
   # define EXCEPTION_STATE_IDENTITY       3
   /*      Send a catch_exception_raise_state_identity message including
    *      the thread identity and state.
    */
   
   /*
    * Masks for exception definitions, above
    * bit zero is unused, therefore 1 word = 31 exception types
    */
   
   #define EXC_MASK_BAD_ACCESS             (1 << EXC_BAD_ACCESS)
   #define EXC_MASK_BAD_INSTRUCTION        (1 << EXC_BAD_INSTRUCTION)
   #define EXC_MASK_ARITHMETIC             (1 << EXC_ARITHMETIC)
   #define EXC_MASK_EMULATION              (1 << EXC_EMULATION)
   #define EXC_MASK_SOFTWARE               (1 << EXC_SOFTWARE)
   #define EXC_MASK_BREAKPOINT             (1 << EXC_BREAKPOINT)
   #define EXC_MASK_SYSCALL                (1 << EXC_SYSCALL)
   #define EXC_MASK_MACH_SYSCALL           (1 << EXC_MACH_SYSCALL)
   #define EXC_MASK_RPC_ALERT              (1 << EXC_RPC_ALERT)
   
   #define EXC_MASK_ALL    (EXC_MASK_BAD_ACCESS |                  \
                            EXC_MASK_BAD_INSTRUCTION |             \
                            EXC_MASK_ARITHMETIC |                  \
                            EXC_MASK_EMULATION |                   \
                            EXC_MASK_SOFTWARE |                    \
                            EXC_MASK_BREAKPOINT |                  \
                            EXC_MASK_SYSCALL |                     \
                            EXC_MASK_MACH_SYSCALL |                \
                            EXC_MASK_RPC_ALERT |                   \
                            EXC_MASK_MACHINE)
   
   
   #define FIRST_EXCEPTION         1       /* ZERO is illegal */
   
   /*
    * Machine independent codes for EXC_SOFTWARE
    * Codes 0x10000 - 0x1FFFF reserved for OS emulation (Unix) 
    * 0x10000 - 0x10002 in use for unix signals
    */
   #define EXC_SOFT_SIGNAL         0x10003 /* Unix signal exceptions */
   
   #ifndef ASSEMBLER
   #include <mach/port.h>
   #include <mach/thread_status.h>
   #include <mach/machine/vm_types.h>
   /*
    * Exported types
    */
   
   typedef int                     exception_type_t;
   typedef integer_t               exception_data_type_t;
   typedef int                     exception_behavior_t;
   typedef integer_t               *exception_data_t;
   typedef unsigned int            exception_mask_t;
   typedef exception_mask_t        *exception_mask_array_t;
   typedef exception_behavior_t    *exception_behavior_array_t;
   typedef thread_state_flavor_t   *exception_flavor_array_t;
   typedef mach_port_t             *exception_port_array_t;
   
   #endif  /* ASSEMBLER */
   #endif  /* _MACH_EXCEPTION_TYPES_H_ */

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