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/*
* Mach Operating System
* Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University.
* Copyright (c) 1993,1994 The University of Utah and
* the Computer Systems Laboratory (CSL).
* 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, THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF
* THIS SOFTWARE IN ITS "AS IS" CONDITION, AND DISCLAIM 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_EMULATION_H_
#define _KERN_SYSCALL_EMULATION_H_
#ifndef __ASSEMBLER__
#include <mach/machine/vm_types.h>
#include <kern/lock.h>
#include <kern/task.h>
typedef vm_offset_t eml_routine_t;
typedef struct eml_dispatch {
decl_simple_lock_data(, lock) /* lock for reference count */
int ref_count; /* reference count */
int disp_count; /* count of entries in vector */
int disp_min; /* index of lowest entry in vector */
eml_routine_t disp_vector[1]; /* first entry in array of dispatch */
/* routines (array has disp_count */
/* elements) */
} *eml_dispatch_t;
typedef vm_offset_t *emulation_vector_t; /* Variable-length array */
#define EML_ROUTINE_NULL (eml_routine_t)0
#define EML_DISPATCH_NULL (eml_dispatch_t)0
#define EML_SUCCESS (0)
#define EML_MOD (err_kern|err_sub(2))
#define EML_BAD_TASK (EML_MOD|0x0001)
#define EML_BAD_CNT (EML_MOD|0x0002)
extern void eml_init(void);
extern void eml_task_reference(task_t task, task_t parent);
extern void eml_task_deallocate(task_t task);
#endif /* __ASSEMBLER__ */
#endif /* _KERN_SYSCALL_EMULATION_H_ */
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