1 /* 2 * Copyright (c) 2000-2004 Apple Computer, 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 * @OSF_COPYRIGHT@ 30 */ 31 32 #ifndef _KERN_EXCEPTION_H_ 33 #define _KERN_EXCEPTION_H_ 34 35 #include <mach/mach_types.h> 36 #include <mach/thread_status.h> 37 #include <mach/exception_types.h> 38 #include <kern/kern_types.h> 39 #include <security/_label.h> 40 41 /* 42 * Common storage for exception actions. 43 * There are arrays of these maintained at the activation, task, and host. 44 */ 45 struct exception_action { 46 struct ipc_port * XNU_PTRAUTH_SIGNED_PTR("exception_action.port") port; /* exception port */ 47 thread_state_flavor_t flavor; /* state flavor to send */ 48 exception_behavior_t behavior; /* exception type to raise */ 49 boolean_t privileged; /* survives ipc_task_reset */ 50 boolean_t hardened; /* associated with the task's hardened_exception_action */ 51 struct label *label; /* MAC label associated with action */ 52 }; 53 struct hardened_exception_action { 54 struct exception_action ea; 55 uint32_t signed_pc_key; 56 exception_mask_t exception; 57 }; 58 59 /* Initialize global state needed for exceptions. */ 60 extern void exception_init(void); 61 62 extern ipc_port_t exception_port_copy_send(ipc_port_t port); 63 64 /* Make an up-call to a thread's exception server */ 65 extern kern_return_t exception_triage( 66 exception_type_t exception, 67 mach_exception_data_t code, 68 mach_msg_type_number_t codeCnt); 69 70 extern kern_return_t exception_triage_thread( 71 exception_type_t exception, 72 mach_exception_data_t code, 73 mach_msg_type_number_t codeCnt, 74 thread_t thread); 75 76 #define BT_EXC_PORTS_COUNT 3 77 extern void exception_deliver_backtrace( 78 kcdata_object_t bt_object, 79 ipc_port_t exc_ports[static BT_EXC_PORTS_COUNT], 80 exception_type_t exception); 81 82 /* Notify system performance monitor */ 83 extern kern_return_t sys_perf_notify(thread_t thread, int pid); 84 85 /* Notify crash reporter */ 86 extern kern_return_t task_exception_notify(exception_type_t exception, 87 mach_exception_data_type_t code, mach_exception_data_type_t subcode, const bool fatal); 88 89 #endif /* _KERN_EXCEPTION_H_ */ 90