[apple/xnu.git] / bsd / i386 / setjmp.h

/*
 * Copyright (c) 2000-2002 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@
 */
/* Copyright (c) 1992 NeXT Computer, Inc.  All rights reserved.
 *
 *	File:	setjmp.h
 *
 *	Declaration of setjmp routines and data structures.
 */
#ifndef _BSD_I386_SETJMP_H
#define _BSD_I386_SETJMP_H

#include <sys/cdefs.h>

#if defined(__x86_64__)
/*
 * _JBLEN is number of ints required to save the following:
 * rflags, rip, rbp, rsp, rbx, r12, r13, r14, r15... these are 8 bytes each
 * mxcsr, fp control word, sigmask... these are 4 bytes each
 * add 16 ints for future expansion needs...
 */
#define _JBLEN ((9 * 2) + 3 + 16)
typedef int jmp_buf[_JBLEN];
typedef int sigjmp_buf[_JBLEN + 1];

#else

/*
 * _JBLEN is number of ints required to save the following:
 * eax, ebx, ecx, edx, edi, esi, ebp, esp, ss, eflags, eip,
 * cs, de, es, fs, gs == 16 ints
 * onstack, mask = 2 ints
 */

#if defined(KERNEL)

#define __need_struct_sigcontext
#include <i386/_structs.h>

typedef struct sigcontext jmp_buf[1];
#define _JBLEN ((sizeof(struct sigcontext)) / sizeof(int))
typedef int sigjmp_buf[_JBLEN+1];
#else
#define _JBLEN (18)
typedef int jmp_buf[_JBLEN];
typedef int sigjmp_buf[_JBLEN + 1];
#endif

#endif

__BEGIN_DECLS
int	setjmp(jmp_buf);
void	longjmp(jmp_buf, int);

#ifndef _ANSI_SOURCE
int	_setjmp(jmp_buf);
void	_longjmp(jmp_buf, int);
int	sigsetjmp(sigjmp_buf, int);
void	siglongjmp(sigjmp_buf, int);
#endif /* _ANSI_SOURCE  */

#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
void	longjmperror(void);
#endif /* neither ANSI nor POSIX */
__END_DECLS
#endif /* !_BSD_I386_SETJMP_H */
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
5d5c5d0d A	3	*
2d21ac55	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
2d21ac55 A	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.
8f6c56a5	14	*
2d21ac55 A	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
8f6c56a5 A	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
2d21ac55 A	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.
8f6c56a5	25	*
2d21ac55	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved.
	29	*
	30	* File: setjmp.h
	31	*
	32	* Declaration of setjmp routines and data structures.
	33	*/
	34	#ifndef _BSD_I386_SETJMP_H
	35	#define _BSD_I386_SETJMP_H
	36
	37	#include <sys/cdefs.h>
0c530ab8 A	38
	39	#if defined(__x86_64__)
	40	/*
	41	* _JBLEN is number of ints required to save the following:
	42	* rflags, rip, rbp, rsp, rbx, r12, r13, r14, r15... these are 8 bytes each
	43	* mxcsr, fp control word, sigmask... these are 4 bytes each
	44	* add 16 ints for future expansion needs...
	45	*/
	46	#define _JBLEN ((9 * 2) + 3 + 16)
	47	typedef int jmp_buf[_JBLEN];
	48	typedef int sigjmp_buf[_JBLEN + 1];
	49
	50	#else
	51
91447636 A	52	/*
	53	* _JBLEN is number of ints required to save the following:
	54	* eax, ebx, ecx, edx, edi, esi, ebp, esp, ss, eflags, eip,
	55	* cs, de, es, fs, gs == 16 ints
	56	* onstack, mask = 2 ints
	57	*/
1c79356b	58
91447636	59	#if defined(KERNEL)
2d21ac55 A	60
	61	#define __need_struct_sigcontext
	62	#include <i386/_structs.h>
	63
91447636	64	typedef struct sigcontext jmp_buf[1];
1c79356b A	65	#define _JBLEN ((sizeof(struct sigcontext)) / sizeof(int))
1c79356b A	66	typedef int sigjmp_buf[_JBLEN+1];
91447636 A	67	#else
	68	#define _JBLEN (18)
	69	typedef int jmp_buf[_JBLEN];
	70	typedef int sigjmp_buf[_JBLEN + 1];
	71	#endif
	72
0c530ab8	73	#endif
1c79356b A	74
1c79356b A	75	__BEGIN_DECLS
2d21ac55 A	76	int setjmp(jmp_buf);
2d21ac55 A	77	void longjmp(jmp_buf, int);
1c79356b A	78
1c79356b A	79	#ifndef _ANSI_SOURCE
2d21ac55 A	80	int _setjmp(jmp_buf);
	81	void _longjmp(jmp_buf, int);
	82	int sigsetjmp(sigjmp_buf, int);
	83	void siglongjmp(sigjmp_buf, int);
1c79356b A	84	#endif /* _ANSI_SOURCE */
1c79356b A	85
2d21ac55	86	#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) \|\| defined(_DARWIN_C_SOURCE))
91447636	87	void longjmperror(void);
1c79356b A	88	#endif /* neither ANSI nor POSIX */
	89	__END_DECLS
	90	#endif /* !_BSD_I386_SETJMP_H */