osfmk/mach/ppc/exception.h

   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  * Copyright (c) 1990, 1991, 1992, The University of Utah and
  27  * the Center for Software Science at the University of Utah (CSS).
  28  * All rights reserved.
  29  *
  30  * Permission to use, copy, modify and distribute this software is hereby
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  32  * and disclaimer notices, and (2) redistributions including binaries
  33  * reproduce the notices in supporting documentation, and (3) all advertising
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  36  * for Software Science at the University of Utah.''
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  38  * THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
  39  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF
  40  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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  42  * CSS requests users of this software to return to css-dist@cs.utah.edu any
  43  * improvements that they make and grant CSS redistribution rights.
  44  *
  45  *      Utah $Hdr: $
  46  */
  47
  48 #ifndef _MACH_PPC_EXCEPTION_H_
  49 #define _MACH_PPC_EXCEPTION_H_
  50
  51
  52 /* STATUS - TODO - this is just transcribed from hp stuff */
  53
  54 #define EXC_TYPES_COUNT 10      /* incl. illegal exception 0 */
  55
  56 #define EXCEPTION_CODE_MAX 2    /* elements in vector (code+subcode) */
  57 /*
  58  *      EXC_BAD_INSTRUCTION
  59  */
  60
  61 #define EXC_PPC_INVALID_SYSCALL 1    /* invalid syscall number */
  62 #define EXC_PPC_UNIPL_INST      2    /* unimplemented instruction */
  63 #define EXC_PPC_PRIVINST        3    /* priviledged instruction */
  64 #define EXC_PPC_PRIVREG         4    /* priviledged register */
  65 #define EXC_PPC_TRACE           5    /* trace/single-step */
  66
  67 /*
  68  *      EXC_BAD_ACCESS
  69  *      Note: do not conflict with kern_return_t values returned by vm_fault
  70  */
  71
  72 #define EXC_PPC_VM_PROT_READ            0x101 /* error reading syscall args */
  73 #define EXC_PPC_BADSPACE                0x102 /* bad space referenced */
  74 #define EXC_PPC_UNALIGNED               0x103 /* unaligned data reference */
  75
  76 /*
  77  *      EXC_ARITHMETIC
  78  */
  79
  80 #define EXC_PPC_OVERFLOW                1    /* integer overflow */
  81 #define EXC_PPC_ZERO_DIVIDE             2    /* integer divide by zero */
  82 #define EXC_PPC_FLT_INEXACT             3    /* IEEE inexact exception */
  83 #define EXC_PPC_FLT_ZERO_DIVIDE         4    /* IEEE zero divide */
  84 #define EXC_PPC_FLT_UNDERFLOW           5    /* IEEE floating underflow */
  85 #define EXC_PPC_FLT_OVERFLOW            6    /* IEEE floating overflow */
  86 #define EXC_PPC_FLT_NOT_A_NUMBER        7    /* IEEE not a number */
  87
  88 /*
  89  * EXC_PPC_NOEMULATION should go away when we add software emulation
  90  * for floating point. Right now we don't support this.
  91  */
  92
  93 #define EXC_PPC_NOEMULATION             8       /* no floating point emulation */
  94 #define EXC_PPC_ALTIVECASSIST   9       /* Altivec Denorm Assist */
  95
  96 /*
  97  *      EXC_SOFTWARE
  98  *      Note: 0x10000-0x10003 in use for unix signal
  99  */
 100 #define EXC_PPC_TRAP            1               /* Program trap */
 101 #define EXC_PPC_MIGRATE         0x10100         /* Time to bolt */
 102
 103
 104 /*
 105  *      EXC_BREAKPOINT
 106  */
 107
 108 #define EXC_PPC_BREAKPOINT              EXC_PPC_TRAP    /* breakpoint trap */
 109
 110 /*
 111  *      machine dependent exception masks
 112  */
 113 #define EXC_MASK_MACHINE        0
 114
 115 #endif  /* _MACH_PPC_EXCEPTION_H_ */