netbsd32_machdep.h revision 1.20 
1/*	$NetBSD: netbsd32_machdep.h,v 1.20 2006/02/11 17:57:31 cdi Exp $	*/
2
3/*
4 * Copyright (c) 1998, 2001 Matthew R. Green
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#ifndef _MACHINE_NETBSD32_H_
32#define _MACHINE_NETBSD32_H_
33
34#include <sys/types.h>
35
36struct proc;
37
38typedef	uint32_t netbsd32_pointer_t;
39
40/*
41 * Convert a pointer in the 32-bit world to a valid 64-bit pointer.
42 */
43#define	NETBSD32PTR64(p32)	((void *)(u_long)(u_int)(p32))
44
45/* from <arch/sparc/include/signal.h> */
46typedef uint32_t netbsd32_sigcontextp_t;
47
48struct netbsd32_sigcontext {
49	int		sc_onstack;	/* sigstack state to restore */
50	int		__sc_mask13;	/* signal mask to restore (old style) */
51	/* begin machine dependent portion */
52	int		sc_sp;		/* %sp to restore */
53	int		sc_pc;		/* pc to restore */
54	int		sc_npc;		/* npc to restore */
55	int		sc_psr;		/* pstate to restore */
56	int		sc_g1;		/* %g1 to restore */
57	int		sc_o0;		/* %o0 to restore */
58	sigset_t	sc_mask;	/* signal mask to restore (new style) */
59};
60
61struct netbsd32_sigcontext13 {
62	int	sc_onstack;		/* sigstack state to restore */
63	int	sc_mask;		/* signal mask to restore (old style) */
64	/* begin machine dependent portion */
65	int	sc_sp;			/* %sp to restore */
66	int	sc_pc;			/* pc to restore */
67	int	sc_npc;			/* npc to restore */
68	int	sc_psr;			/* pstate to restore */
69	int	sc_g1;			/* %g1 to restore */
70	int	sc_o0;			/* %o0 to restore */
71};
72
73/*
74 * Need to plug into get sparc specific ioctl's.
75 */
76#define	NETBSD32_MD_IOCTL	/* enable netbsd32_md_ioctl() */
77int netbsd32_md_ioctl(struct file *, netbsd32_u_long, void *, struct lwp *);
78
79#define NETBSD32_MID_MACHINE MID_SPARC
80
81/*
82 * When returning an off_t to userland, we need to modify the syscall
83 * retval array. We return a 64 bit value in %o0 (high) and %o1 (low)
84 * for 32bit userland.
85 */
86#define NETBSD32_OFF_T_RETURN(RV)	\
87	do {				\
88		(RV)[1] = (RV)[0];	\
89		(RV)[0] >>= 32;		\
90	} while (0)
91
92#endif /* _MACHINE_NETBSD32_H_ */
93