osfmk/mach/ppc/exception.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, 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,
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  23  * Please see the License for the specific language governing rights and
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  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31 /*
  32  * Copyright (c) 1990, 1991, 1992, The University of Utah and
  33  * the Center for Software Science at the University of Utah (CSS).
  34  * All rights reserved.
  35  *
  36  * Permission to use, copy, modify and distribute this software is hereby
  37  * granted provided that (1) source code retains these copyright, permission,
  38  * and disclaimer notices, and (2) redistributions including binaries
  39  * reproduce the notices in supporting documentation, and (3) all advertising
  40  * materials mentioning features or use of this software display the following
  41  * acknowledgement: ``This product includes software developed by the Center
  42  * for Software Science at the University of Utah.''
  43  *
  44  * THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
  45  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF
  46  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  47  *
  48  * CSS requests users of this software to return to css-dist@cs.utah.edu any
  49  * improvements that they make and grant CSS redistribution rights.
  50  *
  51  *      Utah $Hdr: $
  52  */
  53
  54 #ifndef _MACH_PPC_EXCEPTION_H_
  55 #define _MACH_PPC_EXCEPTION_H_
  56
  57 #define EXC_TYPES_COUNT 11      /* incl. illegal exception 0 */
  58
  59 #define EXCEPTION_CODE_MAX 2    /* elements in vector (code+subcode) */
  60 /*
  61  *      EXC_BAD_INSTRUCTION
  62  */
  63
  64 #define EXC_PPC_INVALID_SYSCALL 1    /* invalid syscall number */
  65 #define EXC_PPC_UNIPL_INST      2    /* unimplemented instruction */
  66 #define EXC_PPC_PRIVINST        3    /* priviledged instruction */
  67 #define EXC_PPC_PRIVREG         4    /* priviledged register */
  68 #define EXC_PPC_TRACE           5    /* trace/single-step */
  69 #define EXC_PPC_PERFMON     6    /* performance monitor */
  70
  71 /*
  72  *      EXC_BAD_ACCESS
  73  *      Note: do not conflict with kern_return_t values returned by vm_fault
  74  */
  75
  76 #define EXC_PPC_VM_PROT_READ            0x101 /* error reading syscall args */
  77 #define EXC_PPC_BADSPACE                0x102 /* bad space referenced */
  78 #define EXC_PPC_UNALIGNED               0x103 /* unaligned data reference */
  79
  80 /*
  81  *      EXC_ARITHMETIC
  82  */
  83
  84 #define EXC_PPC_OVERFLOW                1    /* integer overflow */
  85 #define EXC_PPC_ZERO_DIVIDE             2    /* integer divide by zero */
  86 #define EXC_PPC_FLT_INEXACT             3    /* IEEE inexact exception */
  87 #define EXC_PPC_FLT_ZERO_DIVIDE         4    /* IEEE zero divide */
  88 #define EXC_PPC_FLT_UNDERFLOW           5    /* IEEE floating underflow */
  89 #define EXC_PPC_FLT_OVERFLOW            6    /* IEEE floating overflow */
  90 #define EXC_PPC_FLT_NOT_A_NUMBER        7    /* IEEE not a number */
  91
  92 /*
  93  * EXC_PPC_NOEMULATION should go away when we add software emulation
  94  * for floating point. Right now we don't support this.
  95  */
  96
  97 #define EXC_PPC_NOEMULATION             8       /* no floating point emulation */
  98 #define EXC_PPC_ALTIVECASSIST   9       /* Altivec Denorm Assist */
  99
 100 /*
 101  *      EXC_SOFTWARE
 102  *      Note: 0x10000-0x10003 in use for unix signal
 103  */
 104 #define EXC_PPC_TRAP            1               /* Program trap */
 105 #define EXC_PPC_MIGRATE         0x10100         /* Time to bolt */
 106
 107
 108 /*
 109  *      EXC_BREAKPOINT
 110  */
 111
 112 #define EXC_PPC_BREAKPOINT              EXC_PPC_TRAP    /* breakpoint trap */
 113
 114 /*
 115  *      machine dependent exception masks
 116  */
 117 #define EXC_MASK_MACHINE        0
 118
 119 #endif  /* _MACH_PPC_EXCEPTION_H_ */