1/*-
2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify and distribute this software and its
7 * documentation is hereby granted, provided that both the copyright
8 * notice and this permission notice appear in all copies of the
9 * software, derivative works or modified versions, and any portions
10 * thereof, and that both notices appear in supporting documentation.
11 *
12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
13 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15 *
16 * Carnegie Mellon requests users of this software to return to
17 *
18 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
19 *  School of Computer Science
20 *  Carnegie Mellon University
21 *  Pittsburgh PA 15213-3890
22 *
23 * any improvements or extensions that they make and grant Carnegie the
24 * rights to redistribute these changes.
25 *
26 * $FreeBSD$
27 */
28
29#ifndef _MACHINE_STACK_H_
30#define	_MACHINE_STACK_H_
31
32/*
33 * Stack trace.
34 */
35#define INKERNEL(va)	(((vm_offset_t)(va)) >= USRSTACK && \
36	    ((vm_offset_t)(va)) < VM_MAX_KERNEL_ADDRESS)
37
38struct i386_frame {
39	struct i386_frame	*f_frame;
40	int			 f_retaddr;
41	int			 f_arg0;
42};
43
44#endif /* !_MACHINE_STACK_H_ */
45