xnu-1228.12.14.tar.gz

[apple/xnu.git] / osfmk / i386 / machdep_call.h

/*
 * Copyright (c) 2000-2006 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
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 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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/*
 * Copyright (c) 1992 NeXT Computer, Inc.
 *
 * Machine dependent kernel call table defines.
 *
 * HISTORY
 *
 * 17 June 1992 ? at NeXT
 *	Created.
 */

typedef union {
	kern_return_t		(*args_0)(void);
	kern_return_t		(*args_1)(uint32_t);
	kern_return_t		(*args64_1)(uint64_t);
	kern_return_t		(*args_2)(uint32_t,uint32_t);
	kern_return_t		(*args_3)(uint32_t,uint32_t,uint32_t);
	kern_return_t		(*args_4)(uint32_t,uint32_t,uint32_t,uint32_t);
	kern_return_t		(*args_var)(uint32_t,...);
	int			(*args_bsd_3)(uint32_t *, uint32_t,
					      uint32_t, uint32_t);
} machdep_call_routine_t;

#define MACHDEP_CALL_ROUTINE(func, args)	\
	{ { .args_ ## args = func }, args, 0 }
	
#define MACHDEP_CALL_ROUTINE64(func, args)	\
	{ { .args64_ ## args = func }, args, 0 }

#define MACHDEP_BSD_CALL_ROUTINE(func, args)	\
	{ { .args_bsd_ ## args = func }, args, 1 }

typedef struct {
    machdep_call_routine_t	routine;
    int				nargs;
    int				bsd_style;
} machdep_call_t;

extern machdep_call_t		machdep_call_table[];
extern machdep_call_t		machdep_call_table64[];

extern int			machdep_call_count;

extern kern_return_t		thread_get_cthread_self(void);
extern kern_return_t		thread_set_cthread_self(uint32_t);
extern kern_return_t		thread_fast_set_cthread_self(uint32_t);
extern kern_return_t		thread_fast_set_cthread_self64(uint64_t);
extern kern_return_t		thread_set_user_ldt(uint32_t,uint32_t,uint32_t);

extern int		i386_set_ldt(uint32_t *,uint32_t,uint32_t,uint32_t);
extern int		i386_get_ldt(uint32_t *,uint32_t,uint32_t,uint32_t);

extern void			machdep_syscall(x86_saved_state_t *);
extern void			machdep_syscall64(x86_saved_state_t *);