xref: /xnu-12377.81.4/osfmk/mach/exception_types.h (revision 043036a2b3718f7f0be807e2870f8f47d3fa0796)

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 *
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 *
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
/*
 * Mach Operating System
 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
 * All Rights Reserved.
 *
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  [email protected]
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */
/*
 */

#ifndef _MACH_EXCEPTION_TYPES_H_
#define _MACH_EXCEPTION_TYPES_H_

#include <mach/machine/exception.h>

/*
 *	Machine-independent exception definitions.
 */

#define EXC_BAD_ACCESS          1       /* Could not access memory */
/* Code contains kern_return_t describing error. */
/* Subcode contains bad memory address. */

#define EXC_BAD_INSTRUCTION     2       /* Instruction failed */
/* Illegal or undefined instruction or operand */

#define EXC_ARITHMETIC          3       /* Arithmetic exception */
/* Exact nature of exception is in code field */

#define EXC_EMULATION           4       /* Emulation instruction */
/* Emulation support instruction encountered */
/* Details in code and subcode fields	*/

#define EXC_SOFTWARE            5       /* Software generated exception */
/* Exact exception is in code field. */
/* Codes 0 - 0xFFFF reserved to hardware */
/* Codes 0x10000 - 0x1FFFF reserved for OS emulation (Unix) */

#define EXC_BREAKPOINT          6       /* Trace, breakpoint, etc. */
/* Details in code field. */

#define EXC_SYSCALL             7       /* System calls. */

#define EXC_MACH_SYSCALL        8       /* Mach system calls. */

#define EXC_RPC_ALERT           9       /* RPC alert */

#define EXC_CRASH               10      /* Abnormal process exit */

#define EXC_RESOURCE            11      /* Hit resource consumption limit */
/* Exact resource is in code field. */

#define EXC_GUARD               12      /* Violated guarded resource protections */

#define EXC_CORPSE_NOTIFY       13      /* Abnormal process exited to corpse state */


/*
 *	Machine-independent exception behaviors
 */

#define EXCEPTION_DEFAULT              1
/*	Send a catch_exception_raise message including the identity.
 */

#define EXCEPTION_STATE                2
/*	Send a catch_exception_raise_state message including the
 *	thread state.
 */

#define EXCEPTION_STATE_IDENTITY       3
/*	Send a catch_exception_raise_state_identity message including
 *	the thread identity and state.
 */

#define EXCEPTION_IDENTITY_PROTECTED   4
/*	Send a catch_exception_raise_identity_protected message including protected task
 *  and thread identity.
 */

#define EXCEPTION_STATE_IDENTITY_PROTECTED   5
/*	Send a catch_exception_raise_state_identity_protected message including protected task
 *  and thread identity plus the thread state.
 */

#define MACH_EXCEPTION_BACKTRACE_PREFERRED   0x20000000
/* Prefer sending a catch_exception_raise_backtrace message, if applicable */

#define MACH_EXCEPTION_ERRORS           0x40000000
/*	include additional exception specific errors, not used yet.  */

#define MACH_EXCEPTION_CODES            0x80000000
/*	Send 64-bit code and subcode in the exception header */

#define MACH_EXCEPTION_MASK             (MACH_EXCEPTION_CODES | \
	                                    MACH_EXCEPTION_ERRORS | \
	                                    MACH_EXCEPTION_BACKTRACE_PREFERRED)
/*
 * Masks for exception definitions, above
 * bit zero is unused, therefore 1 word = 31 exception types
 */

#define EXC_MASK_BAD_ACCESS             (1 << EXC_BAD_ACCESS)
#define EXC_MASK_BAD_INSTRUCTION        (1 << EXC_BAD_INSTRUCTION)
#define EXC_MASK_ARITHMETIC             (1 << EXC_ARITHMETIC)
#define EXC_MASK_EMULATION              (1 << EXC_EMULATION)
#define EXC_MASK_SOFTWARE               (1 << EXC_SOFTWARE)
#define EXC_MASK_BREAKPOINT             (1 << EXC_BREAKPOINT)
#define EXC_MASK_SYSCALL                (1 << EXC_SYSCALL)
#define EXC_MASK_MACH_SYSCALL           (1 << EXC_MACH_SYSCALL)
#define EXC_MASK_RPC_ALERT              (1 << EXC_RPC_ALERT)
#define EXC_MASK_CRASH                  (1 << EXC_CRASH)
#define EXC_MASK_RESOURCE               (1 << EXC_RESOURCE)
#define EXC_MASK_GUARD                  (1 << EXC_GUARD)
#define EXC_MASK_CORPSE_NOTIFY          (1 << EXC_CORPSE_NOTIFY)

#define EXC_MASK_ALL    (EXC_MASK_BAD_ACCESS |                  \
	                 EXC_MASK_BAD_INSTRUCTION |             \
	                 EXC_MASK_ARITHMETIC |                  \
	                 EXC_MASK_EMULATION |                   \
	                 EXC_MASK_SOFTWARE |                    \
	                 EXC_MASK_BREAKPOINT |                  \
	                 EXC_MASK_SYSCALL |                     \
	                 EXC_MASK_MACH_SYSCALL |                \
	                 EXC_MASK_RPC_ALERT |                   \
	                 EXC_MASK_RESOURCE |                    \
	                 EXC_MASK_GUARD |                       \
	                 EXC_MASK_MACHINE)

#ifdef  KERNEL_PRIVATE
#define EXC_MASK_VALID  (EXC_MASK_ALL | EXC_MASK_CRASH | EXC_MASK_CORPSE_NOTIFY)

/*
 * Additional mask for use with EXC_BREAKPOINT.
 * Note this is used just while the exception is shuffled around within xnu.
 * It's wiped off before we reach exception_triage_thread().
 */
#define EXC_MAY_BE_UNRECOVERABLE_BIT    0x400   /* Set if this exception may be uncatchable by userspace */
#endif /* KERNEL_PRIVATE */

#define FIRST_EXCEPTION         1       /* ZERO is illegal */

/*
 * Machine independent codes for EXC_SOFTWARE
 * Codes 0x10000 - 0x1FFFF reserved for OS emulation (Unix)
 * 0x10000 - 0x10002 in use for unix signals
 * 0x20000 - 0x2FFFF reserved for MACF
 */
#define EXC_SOFT_SIGNAL         0x10003 /* Unix signal exceptions */

#define EXC_MACF_MIN            0x20000 /* MACF exceptions */
#define EXC_MACF_MAX            0x2FFFF

#ifndef ASSEMBLER

#include <mach/port.h>
#include <mach/thread_status.h>
#include <mach/machine/vm_types.h>
#include <mach_debug/ipc_info.h>
/*
 * Exported types
 */

typedef int                             exception_type_t;
typedef integer_t                       exception_data_type_t;
typedef int64_t                         mach_exception_data_type_t;
typedef int                             exception_behavior_t;
typedef exception_data_type_t           *exception_data_t;
typedef mach_exception_data_type_t      *mach_exception_data_t;
typedef unsigned int                    exception_mask_t;
typedef exception_mask_t                *exception_mask_array_t;
typedef exception_behavior_t            *exception_behavior_array_t;
typedef thread_state_flavor_t           *exception_flavor_array_t;
typedef mach_port_t                     *exception_port_array_t;
typedef ipc_info_port_t                 *exception_port_info_array_t;
typedef mach_exception_data_type_t      mach_exception_code_t;
typedef mach_exception_data_type_t      mach_exception_subcode_t;

#endif  /* ASSEMBLER */

#endif  /* _MACH_EXCEPTION_TYPES_H_ */