pcb.h revision 82906 
1/*-
2 * Copyright (c) 2001 Jake Burkholder.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/sparc64/include/pcb.h 82906 2001-09-03 23:10:45Z jake $
27 */
28
29#ifndef	_MACHINE_PCB_H_
30#define	_MACHINE_PCB_H_
31
32#include <machine/fp.h>
33#include <machine/frame.h>
34
35/*
36 * XXX: MAXWIN should probably be done dynamically, pcb_wscratch is therefore
37 * at the end of the pcb.
38 */
39#define	MAXWIN		8
40
41/* Used in pcb_fcwp to mark the wscratch stack as empty. */
42#define	PCB_CWP_EMPTY	0xff
43
44/* NOTE: pcb_fpstate must be aligned on a 64 byte boundary. */
45struct	pcb {
46	struct	fpstate	pcb_fpstate;
47	u_long	pcb_cwp;
48	u_long	pcb_fp;
49	u_long	pcb_pc;
50	u_long	pcb_y;
51	caddr_t	pcb_onfault;
52	u_long	pcb_nsaved;
53	u_long	pcb_rwsp[MAXWIN];
54	struct	rwindow pcb_rw[MAXWIN];
55};
56
57struct	md_coredump {
58};
59
60#ifdef _KERNEL
61int	savectx(struct pcb *pcb);
62#endif
63
64#endif /* !_MACHINE_PCB_H_ */
65