xref: /netbsd/sys/arch/m68k/include/pcb.h (revision 8ac3875a)
1 /*	$NetBSD: pcb.h,v 1.10 2011/02/08 20:20:16 rmind Exp $	*/
2 
3 /*
4  * Copyright (c) 1988 University of Utah.
5  * Copyright (c) 1982, 1986, 1990, 1993
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * This code is derived from software contributed to Berkeley by
9  * the Systems Programming Group of the University of Utah Computer
10  * Science Department.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  * from: Utah $Hdr: pcb.h 1.14 91/03/25$
37  *
38  *	@(#)pcb.h	8.1 (Berkeley) 6/10/93
39  */
40 
41 #ifndef _M68K_PCB_H_
42 #define _M68K_PCB_H_
43 
44 #include <machine/frame.h>
45 #include <machine/reg.h>
46 
47 /*
48  * m68k process control block
49  */
50 struct pcb {
51 	short	pcb_flags;	/* misc. process flags */
52 	short	pcb_ps; 	/* processor status word */
53 	int	__pcb_spare0;
54 	int	pcb_usp;	/* user stack pointer */
55 	int	pcb_regs[12];	/* D2-D7, A2-A7 */
56 	void *	pcb_onfault;	/* for copyin/out faults */
57 	struct	fpframe pcb_fpregs; /* 68881/2 context save area */
58 };
59 
60 /* Positions within pcb_regs[] of A6 and A7 (FP and SP). For m68k DDB. */
61 #define PCB_REGS_FP	10
62 #define PCB_REGS_SP	11
63 
64 /*
65  * The pcb is augmented with machine-dependent additional data for
66  * core dumps. For the hp300, this includes an HP-UX exec header
67  * which is dumped for HP-UX processes.
68  */
69 struct md_coredump {
70 	int	md_exec[16];	/* exec structure for HP-UX core dumps */
71 };
72 
73 extern struct pcb *curpcb;
74 
75 #endif /* _M68K_PCB_H_ */
76