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 42 #if __has_feature(ptrauth_calls) 43 /* 44 * Note that while this bit can show up in the reported exception code, 45 * it also does double-duty by being set just while the exception is temporarily shuffled around 46 * within xnu, and it can be cleared before we reached exception_triage_thread(). 47 */ 48 #define EXC_PTRAUTH_BIT 0x200 /* Set if the exception was caused by a ptrauth failure */ 49 #endif /* __has_feature(ptrauth_calls) */ 50 #endif /* XNU_KERNEL_PRIVATE */ 51 52 /* 53 * Trap numbers as defined by the hardware exception vectors. 54 */ 55 56 /* 57 * EXC_BAD_INSTRUCTION 58 */ 59 60 #define EXC_ARM_UNDEFINED 1 /* Undefined */ 61 #define EXC_ARM_SME_DISALLOWED 2 /* Current thread state prohibits use of SME resources */ 62 63 /* 64 * EXC_ARITHMETIC 65 */ 66 67 #define EXC_ARM_FP_UNDEFINED 0 /* Undefined Floating Point Exception */ 68 #define EXC_ARM_FP_IO 1 /* Invalid Floating Point Operation */ 69 #define EXC_ARM_FP_DZ 2 /* Floating Point Divide by Zero */ 70 #define EXC_ARM_FP_OF 3 /* Floating Point Overflow */ 71 #define EXC_ARM_FP_UF 4 /* Floating Point Underflow */ 72 #define EXC_ARM_FP_IX 5 /* Inexact Floating Point Result */ 73 #define EXC_ARM_FP_ID 6 /* Floating Point Denormal Input */ 74 75 /* 76 * EXC_BAD_ACCESS 77 * Note: do not conflict with kern_return_t values returned by vm_fault 78 */ 79 80 #define EXC_ARM_DA_ALIGN 0x101 /* Alignment Fault */ 81 #define EXC_ARM_DA_DEBUG 0x102 /* Debug (watch/break) Fault */ 82 #define EXC_ARM_SP_ALIGN 0x103 /* SP Alignment Fault */ 83 #define EXC_ARM_SWP 0x104 /* SWP instruction */ 84 #define EXC_ARM_PAC_FAIL 0x105 /* PAC authentication failure */ 85 86 #define EXC_ARM_MTE_TAGCHECK_FAIL 0x106 /* MTE Tag Check failure */ 87 #define EXC_ARM_MTE_CANONICAL_FAIL 0x107 /* MTE Canonical Tag access fail */ 88 89 /* 90 * EXC_BREAKPOINT 91 */ 92 93 #define EXC_ARM_BREAKPOINT 1 /* breakpoint trap */ 94 95 #endif /* defined (__arm__) || defined (__arm64__) */ 96 97 #endif /* _MACH_ARM_EXCEPTION_H_ */ 98