From f07a4c844da9f0ecae5bbee1ab94be56505f26f7 Mon Sep 17 00:00:00 2001 From: Thomas Bushnell Date: Tue, 25 Feb 1997 21:28:37 +0000 Subject: Initial source --- kern/syscall_emulation.h | 61 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 kern/syscall_emulation.h (limited to 'kern/syscall_emulation.h') diff --git a/kern/syscall_emulation.h b/kern/syscall_emulation.h new file mode 100644 index 00000000..91b3ed71 --- /dev/null +++ b/kern/syscall_emulation.h @@ -0,0 +1,61 @@ +/* + * 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 +#include + +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_ -- cgit v1.2.3