osfmk/kern/exception.h

   1 /*
   2  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  * @OSF_COPYRIGHT@
  32  */
  33
  34 #ifndef _KERN_EXCEPTION_H_
  35 #define _KERN_EXCEPTION_H_
  36
  37 #include <mach/mach_types.h>
  38 #include <mach/thread_status.h>
  39 #include <mach/exception_types.h>
  40 #include <kern/kern_types.h>
  41
  42 /*
  43  * Common storage for exception actions.
  44  * There are arrays of these maintained at the activation, task, and host.
  45  */
  46 struct exception_action {
  47         struct ipc_port         *port;          /* exception port */
  48         thread_state_flavor_t   flavor;         /* state flavor to send */
  49         exception_behavior_t    behavior;       /* exception type to raise */
  50         boolean_t               privileged;     /* survives ipc_task_reset */
  51 };
  52
  53 /* Make an up-call to a thread's exception server */
  54 extern void exception_triage(
  55         exception_type_t        exception,
  56         exception_data_t        code,
  57         mach_msg_type_number_t  codeCnt);
  58
  59 /* Notify system performance monitor */
  60 extern kern_return_t sys_perf_notify(struct task *task,
  61         exception_data_t        code,
  62         mach_msg_type_number_t  codeCnt);
  63
  64 #endif  /* _KERN_EXCEPTION_H_ */