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,
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23   * Please see the License for the specific language governing rights and
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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  	struct label            * XNU_PTRAUTH_SIGNED_PTR("exception_action.label") label; /* MAC label associated with action */
51  };
52  
53  /* Initialize global state needed for exceptions. */
54  extern void exception_init(void);
55  
56  /* Make an up-call to a thread's exception server */
57  extern kern_return_t exception_triage(
58  	exception_type_t        exception,
59  	mach_exception_data_t   code,
60  	mach_msg_type_number_t  codeCnt);
61  
62  extern kern_return_t exception_triage_thread(
63  	exception_type_t        exception,
64  	mach_exception_data_t   code,
65  	mach_msg_type_number_t  codeCnt,
66  	thread_t                thread);
67  
68  /* Notify system performance monitor */
69  extern kern_return_t sys_perf_notify(thread_t thread, int pid);
70  
71  /* Notify crash reporter */
72  extern kern_return_t task_exception_notify(exception_type_t exception,
73      mach_exception_data_type_t code, mach_exception_data_type_t subcode);
74  
75  #endif  /* _KERN_EXCEPTION_H_ */