[apple/xnu.git] / osfmk / kern / syscall_sw.h

/*
 * Copyright (c) 2000-2004 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  Software.Distribution@CS.CMU.EDU
 *  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	_KERN_SYSCALL_SW_H_
#define	_KERN_SYSCALL_SW_H_

#include <mach_assert.h>

/*
 *	mach_trap_stack indicates the trap may discard
 *	its kernel stack.  Some architectures may need
 *	to save more state in the pcb for these traps.
 */
#if CONFIG_REQUIRES_U32_MUNGING
typedef	void	mach_munge_t(void *);
#elif __arm__ && (__BIGGEST_ALIGNMENT__ > 4)
typedef	int	mach_munge_t(const void *, void *);
#endif

typedef struct {
	int			mach_trap_arg_count; /* Number of trap arguments (Arch independant) */
	kern_return_t		(*mach_trap_function)(void *);
#if CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4))
	mach_munge_t		*mach_trap_arg_munge32; /* system call argument munger routine for 32-bit */
#endif
	int			mach_trap_u32_words; /* number of 32-bit words to copyin for U32 */
#if	MACH_ASSERT
	const char*		mach_trap_name;
#endif /* MACH_ASSERT */
} mach_trap_t;

#define MACH_TRAP_TABLE_COUNT   128


extern const mach_trap_t	mach_trap_table[];
extern int			mach_trap_count;

#if CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4))

#if	!MACH_ASSERT
#define	MACH_TRAP(name, arg_count, u32_arg_words, munge32)	\
	{ (arg_count), (kern_return_t (*)(void *)) (name), munge32, (u32_arg_words)  }
#else /* !MACH_ASSERT */
#define	MACH_TRAP(name, arg_count, u32_arg_words, munge32)	\
	{ (arg_count), (kern_return_t (*)(void *)) (name), munge32, (u32_arg_words), #name  }
#endif /* !MACH_ASSERT */


#else /* !CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4)) */

#if	!MACH_ASSERT
#define	MACH_TRAP(name, arg_count, u32_arg_words, munge32)	\
	{ (arg_count), (kern_return_t (*)(void *)) (name), (u32_arg_words)  }
#else /* !MACH_ASSERT */
#define	MACH_TRAP(name, arg_count, u32_arg_words, munge32)	\
	{ (arg_count), (kern_return_t (*)(void *)) (name), (u32_arg_words), #name  }
#endif /* !MACH_ASSERT */

#endif /* !CONFIG_REQUIRES_U32_MUNGING */

#endif	/* _KERN_SYSCALL_SW_H_ */
Commit	Line	Data
1c79356b	1	/*
91447636	2	* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
1c79356b	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	/*
	29	* @OSF_COPYRIGHT@
	30	*/
	31	/*
	32	* Mach Operating System
	33	* Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
	34	* All Rights Reserved.
	35	*
	36	* Permission to use, copy, modify and distribute this software and its
	37	* documentation is hereby granted, provided that both the copyright
	38	* notice and this permission notice appear in all copies of the
	39	* software, derivative works or modified versions, and any portions
	40	* thereof, and that both notices appear in supporting documentation.
	41	*
	42	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	43	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	44	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	45	*
	46	* Carnegie Mellon requests users of this software to return to
	47	*
	48	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	49	* School of Computer Science
	50	* Carnegie Mellon University
	51	* Pittsburgh PA 15213-3890
	52	*
	53	* any improvements or extensions that they make and grant Carnegie Mellon
	54	* the rights to redistribute these changes.
	55	*/
	56	/*
	57	*/
	58
	59	#ifndef _KERN_SYSCALL_SW_H_
	60	#define _KERN_SYSCALL_SW_H_
	61
	62	#include <mach_assert.h>
	63
	64	/*
	65	* mach_trap_stack indicates the trap may discard
	66	* its kernel stack. Some architectures may need
	67	* to save more state in the pcb for these traps.
	68	*/
fe8ab488 A	69	#if CONFIG_REQUIRES_U32_MUNGING
fe8ab488 A	70	typedef void mach_munge_t(void *);
5ba3f43e A	71	#elif __arm__ && (__BIGGEST_ALIGNMENT__ > 4)
5ba3f43e A	72	typedef int mach_munge_t(const void , void );
fe8ab488	73	#endif
1c79356b A	74
1c79356b A	75	typedef struct {
39236c6e	76	int mach_trap_arg_count; /* Number of trap arguments (Arch independant) */
316670eb	77	kern_return_t (mach_trap_function)(void );
3e170ce0	78	#if CONFIG_REQUIRES_U32_MUNGING \|\| (__arm__ && (__BIGGEST_ALIGNMENT__ > 4))
39236c6e A	79	mach_munge_t mach_trap_arg_munge32; / system call argument munger routine for 32-bit */
	80	#endif
	81	int mach_trap_u32_words; /* number of 32-bit words to copyin for U32 */
6d2010ae	82	#if MACH_ASSERT
91447636	83	const char* mach_trap_name;
6d2010ae	84	#endif /* MACH_ASSERT */
1c79356b A	85	} mach_trap_t;
1c79356b A	86
55e303ae A	87	#define MACH_TRAP_TABLE_COUNT 128
	88
	89
316670eb	90	extern const mach_trap_t mach_trap_table[];
91447636	91	extern int mach_trap_count;
1c79356b	92
3e170ce0	93	#if CONFIG_REQUIRES_U32_MUNGING \|\| (__arm__ && (__BIGGEST_ALIGNMENT__ > 4))
39236c6e	94
91447636	95	#if !MACH_ASSERT
39236c6e A	96	#define MACH_TRAP(name, arg_count, u32_arg_words, munge32) \
	97	{ (arg_count), (kern_return_t ()(void )) (name), munge32, (u32_arg_words) }
	98	#else /* !MACH_ASSERT */
	99	#define MACH_TRAP(name, arg_count, u32_arg_words, munge32) \
	100	{ (arg_count), (kern_return_t ()(void )) (name), munge32, (u32_arg_words), #name }
91447636	101	#endif /* !MACH_ASSERT */
39236c6e A	102
39236c6e A	103
3e170ce0	104	#else /* !CONFIG_REQUIRES_U32_MUNGING \|\| (__arm__ && (__BIGGEST_ALIGNMENT__ > 4)) */
39236c6e A	105
	106	#if !MACH_ASSERT
	107	#define MACH_TRAP(name, arg_count, u32_arg_words, munge32) \
	108	{ (arg_count), (kern_return_t ()(void )) (name), (u32_arg_words) }
	109	#else /* !MACH_ASSERT */
	110	#define MACH_TRAP(name, arg_count, u32_arg_words, munge32) \
	111	{ (arg_count), (kern_return_t ()(void )) (name), (u32_arg_words), #name }
	112	#endif /* !MACH_ASSERT */
	113
fe8ab488	114	#endif /* !CONFIG_REQUIRES_U32_MUNGING */
1c79356b A	115
1c79356b A	116	#endif /* _KERN_SYSCALL_SW_H_ */