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#if defined (__arm__) || defined (__arm64__)
33
34#define EXC_TYPES_COUNT 14 /* incl. illegal exception 0 */
35
36#define EXC_MASK_MACHINE 0
37
38#define EXCEPTION_CODE_MAX 2 /* code and subcode */
39
40#if XNU_KERNEL_PRIVATE
41#if __has_feature(ptrauth_calls)
42#define EXC_PTRAUTH_BIT 0x200 /* bit set if exception could have been caused by ptrauth failure */
43#endif /* __has_feature(ptrauth_calls) */
44#endif /* XNU_KERNEL_PRIVATE */
45
46/*
47 * Trap numbers as defined by the hardware exception vectors.
48 */
49
50/*
51 * EXC_BAD_INSTRUCTION
52 */
53
54#define EXC_ARM_UNDEFINED 1 /* Undefined */
55
56/*
57 * EXC_ARITHMETIC
58 */
59
60#define EXC_ARM_FP_UNDEFINED 0 /* Undefined Floating Point Exception */
61#define EXC_ARM_FP_IO 1 /* Invalid Floating Point Operation */
62#define EXC_ARM_FP_DZ 2 /* Floating Point Divide by Zero */
63#define EXC_ARM_FP_OF 3 /* Floating Point Overflow */
64#define EXC_ARM_FP_UF 4 /* Floating Point Underflow */
65#define EXC_ARM_FP_IX 5 /* Inexact Floating Point Result */
66#define EXC_ARM_FP_ID 6 /* Floating Point Denormal Input */
67
68/*
69 * EXC_BAD_ACCESS
70 * Note: do not conflict with kern_return_t values returned by vm_fault
71 */
72
73#define EXC_ARM_DA_ALIGN 0x101 /* Alignment Fault */
74#define EXC_ARM_DA_DEBUG 0x102 /* Debug (watch/break) Fault */
75#define EXC_ARM_SP_ALIGN 0x103 /* SP Alignment Fault */
76#define EXC_ARM_SWP 0x104 /* SWP instruction */
77#define EXC_ARM_PAC_FAIL 0x105 /* PAC authentication failure */
78
79
80/*
81 * EXC_BREAKPOINT
82 */
83
84#define EXC_ARM_BREAKPOINT 1 /* breakpoint trap */
85
86#endif /* defined (__arm__) || defined (__arm64__) */
87
88#endif /* _MACH_ARM_EXCEPTION_H_ */
89