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 */
45struct 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 *label; /* MAC label associated with action */
51};
52
53/* Initialize global state needed for exceptions. */
54extern void exception_init(void);
55
56extern ipc_port_t exception_port_copy_send(ipc_port_t port);
57
58/* Make an up-call to a thread's exception server */
59extern kern_return_t exception_triage(
60 exception_type_t exception,
61 mach_exception_data_t code,
62 mach_msg_type_number_t codeCnt);
63
64extern kern_return_t exception_triage_thread(
65 exception_type_t exception,
66 mach_exception_data_t code,
67 mach_msg_type_number_t codeCnt,
68 thread_t thread);
69
70#define BT_EXC_PORTS_COUNT 3
71extern void exception_deliver_backtrace(
72 kcdata_object_t bt_object,
73 ipc_port_t exc_ports[static BT_EXC_PORTS_COUNT],
74 exception_type_t exception);
75
76/* Notify system performance monitor */
77extern kern_return_t sys_perf_notify(thread_t thread, int pid);
78
79/* Notify crash reporter */
80extern kern_return_t task_exception_notify(exception_type_t exception,
81 mach_exception_data_type_t code, mach_exception_data_type_t subcode, const bool fatal);
82
83#endif /* _KERN_EXCEPTION_H_ */
84