xref: /freebsd/sys/i386/include/stack.h (revision fcb560670601b2a4d87bb31d7531c8dcc37ee71b)
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 
38 struct i386_frame {
39 	struct i386_frame	*f_frame;
40 	int			 f_retaddr;
41 	int			 f_arg0;
42 };
43 
44 #endif /* !_MACHINE_STACK_H_ */
45