osfmk/mach/arm/exception.h

   1 /*
   2  * Copyright (c) 2007 Apple 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,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifndef _MACH_ARM_EXCEPTION_H_
  30 #define _MACH_ARM_EXCEPTION_H_
  31
  32 #define EXC_TYPES_COUNT         14      /* incl. illegal exception 0 */
  33
  34 #define EXC_MASK_MACHINE         0
  35
  36 #define EXCEPTION_CODE_MAX       2      /*  code and subcode */
  37
  38 #if XNU_KERNEL_PRIVATE
  39 #if __has_feature(ptrauth_calls)
  40 #define EXC_PTRAUTH_BIT         0x200  /* bit set if exception could have been caused by ptrauth failure */
  41 #endif /* __has_feature(ptrauth_calls) */
  42 #endif /* XNU_KERNEL_PRIVATE */
  43
  44 /*
  45  *      Trap numbers as defined by the hardware exception vectors.
  46  */
  47
  48 /*
  49  *      EXC_BAD_INSTRUCTION
  50  */
  51
  52 #define EXC_ARM_UNDEFINED       1       /* Undefined */
  53
  54 /*
  55  *      EXC_ARITHMETIC
  56  */
  57
  58 #define EXC_ARM_FP_UNDEFINED    0       /* Undefined Floating Point Exception */
  59 #define EXC_ARM_FP_IO           1       /* Invalid Floating Point Operation */
  60 #define EXC_ARM_FP_DZ           2       /* Floating Point Divide by Zero */
  61 #define EXC_ARM_FP_OF           3       /* Floating Point Overflow */
  62 #define EXC_ARM_FP_UF           4       /* Floating Point Underflow */
  63 #define EXC_ARM_FP_IX           5       /* Inexact Floating Point Result */
  64 #define EXC_ARM_FP_ID           6       /* Floating Point Denormal Input */
  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_ARM_DA_ALIGN        0x101   /* Alignment Fault */
  72 #define EXC_ARM_DA_DEBUG        0x102   /* Debug (watch/break) Fault */
  73 #define EXC_ARM_SP_ALIGN        0x103   /* SP Alignment Fault */
  74 #define EXC_ARM_SWP             0x104   /* SWP instruction */
  75 #define EXC_ARM_PAC_FAIL        0x105   /* PAC authentication failure */
  76
  77 /*
  78  *      EXC_BREAKPOINT
  79  */
  80
  81 #define EXC_ARM_BREAKPOINT      1       /* breakpoint trap */
  82
  83
  84 #endif  /* _MACH_ARM_EXCEPTION_H_ */