osfmk/mach/ppc/exception.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * @OSF_COPYRIGHT@
  25  */
  26 /*
  27  * Copyright (c) 1990, 1991, 1992, The University of Utah and
  28  * the Center for Software Science at the University of Utah (CSS).
  29  * All rights reserved.
  30  *
  31  * Permission to use, copy, modify and distribute this software is hereby
  32  * granted provided that (1) source code retains these copyright, permission,
  33  * and disclaimer notices, and (2) redistributions including binaries
  34  * reproduce the notices in supporting documentation, and (3) all advertising
  35  * materials mentioning features or use of this software display the following
  36  * acknowledgement: ``This product includes software developed by the Center
  37  * for Software Science at the University of Utah.''
  38  *
  39  * THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
  40  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF
  41  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  42  *
  43  * CSS requests users of this software to return to css-dist@cs.utah.edu any
  44  * improvements that they make and grant CSS redistribution rights.
  45  *
  46  *      Utah $Hdr: $
  47  */
  48
  49 #ifndef _MACH_PPC_EXCEPTION_H_
  50 #define _MACH_PPC_EXCEPTION_H_
  51
  52 #define EXC_TYPES_COUNT 10      /* incl. illegal exception 0 */
  53
  54 #define EXCEPTION_CODE_MAX 2    /* elements in vector (code+subcode) */
  55 /*
  56  *      EXC_BAD_INSTRUCTION
  57  */
  58
  59 #define EXC_PPC_INVALID_SYSCALL 1    /* invalid syscall number */
  60 #define EXC_PPC_UNIPL_INST      2    /* unimplemented instruction */
  61 #define EXC_PPC_PRIVINST        3    /* priviledged instruction */
  62 #define EXC_PPC_PRIVREG         4    /* priviledged register */
  63 #define EXC_PPC_TRACE           5    /* trace/single-step */
  64 #define EXC_PPC_PERFMON     6    /* performance monitor */
  65
  66 /*
  67  *      EXC_BAD_ACCESS
  68  *      Note: do not conflict with kern_return_t values returned by vm_fault
  69  */
  70
  71 #define EXC_PPC_VM_PROT_READ            0x101 /* error reading syscall args */
  72 #define EXC_PPC_BADSPACE                0x102 /* bad space referenced */
  73 #define EXC_PPC_UNALIGNED               0x103 /* unaligned data reference */
  74
  75 /*
  76  *      EXC_ARITHMETIC
  77  */
  78
  79 #define EXC_PPC_OVERFLOW                1    /* integer overflow */
  80 #define EXC_PPC_ZERO_DIVIDE             2    /* integer divide by zero */
  81 #define EXC_PPC_FLT_INEXACT             3    /* IEEE inexact exception */
  82 #define EXC_PPC_FLT_ZERO_DIVIDE         4    /* IEEE zero divide */
  83 #define EXC_PPC_FLT_UNDERFLOW           5    /* IEEE floating underflow */
  84 #define EXC_PPC_FLT_OVERFLOW            6    /* IEEE floating overflow */
  85 #define EXC_PPC_FLT_NOT_A_NUMBER        7    /* IEEE not a number */
  86
  87 /*
  88  * EXC_PPC_NOEMULATION should go away when we add software emulation
  89  * for floating point. Right now we don't support this.
  90  */
  91
  92 #define EXC_PPC_NOEMULATION             8       /* no floating point emulation */
  93 #define EXC_PPC_ALTIVECASSIST   9       /* Altivec Denorm Assist */
  94
  95 /*
  96  *      EXC_SOFTWARE
  97  *      Note: 0x10000-0x10003 in use for unix signal
  98  */
  99 #define EXC_PPC_TRAP            1               /* Program trap */
 100 #define EXC_PPC_MIGRATE         0x10100         /* Time to bolt */
 101
 102
 103 /*
 104  *      EXC_BREAKPOINT
 105  */
 106
 107 #define EXC_PPC_BREAKPOINT              EXC_PPC_TRAP    /* breakpoint trap */
 108
 109 /*
 110  *      machine dependent exception masks
 111  */
 112 #define EXC_MASK_MACHINE        0
 113
 114 #endif  /* _MACH_PPC_EXCEPTION_H_ */