Initial source

1 files changed, 61 insertions, 0 deletions

diff --git a/kern/syscall_emulation.h b/kern/syscall_emulation.h
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+++ b/kern/syscall_emulation.h
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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>
+
+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)
+#endif	ASSEMBLER
+
+#endif	_KERN_SYSCALL_EMULATION_H_