freebsd32_util.h revision 205014 
1/*-
2 * Copyright (c) 1998-1999 Andrew Gallatin
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 *    in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software withough specific prior written permission
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/compat/freebsd32/freebsd32_util.h 205014 2010-03-11 14:49:06Z nwhitehorn $
29 */
30
31#ifndef _COMPAT_FREEBSD32_FREEBSD32_UTIL_H_
32#define _COMPAT_FREEBSD32_FREEBSD32_UTIL_H_
33
34#include <sys/cdefs.h>
35#include <sys/exec.h>
36#include <sys/sysent.h>
37
38#include <vm/vm.h>
39#include <vm/vm_param.h>
40#include <vm/pmap.h>
41
42struct freebsd32_ps_strings {
43	u_int32_t ps_argvstr;	/* first of 0 or more argument strings */
44	int	ps_nargvstr;	/* the number of argument strings */
45	u_int32_t ps_envstr;	/* first of 0 or more environment strings */
46	int	ps_nenvstr;	/* the number of environment strings */
47};
48
49#if defined(__amd64__) || defined(__ia64__)
50#include <compat/ia32/ia32_util.h>
51#endif
52
53#define FREEBSD32_PS_STRINGS	\
54	(FREEBSD32_USRSTACK - sizeof(struct freebsd32_ps_strings))
55
56extern struct sysent freebsd32_sysent[];
57
58#define SYSCALL32_MODULE(name, offset, new_sysent, evh, arg)   \
59static struct syscall_module_data name##_syscall32_mod = {     \
60       evh, arg, offset, new_sysent, { 0, NULL }               \
61};                                                             \
62                                                               \
63static moduledata_t name##32_mod = {                           \
64       #name,                                                  \
65       syscall32_module_handler,                               \
66       &name##_syscall32_mod                                   \
67};                                                             \
68DECLARE_MODULE(name##32, name##32_mod, SI_SUB_SYSCALLS, SI_ORDER_MIDDLE)
69
70#define SYSCALL32_MODULE_HELPER(syscallname)            \
71static int syscallname##_syscall32 = FREEBSD32_SYS_##syscallname; \
72static struct sysent syscallname##_sysent32 = {         \
73    (sizeof(struct syscallname ## _args )               \
74     / sizeof(register_t)),                             \
75    (sy_call_t *)& syscallname                          \
76};                                                      \
77SYSCALL32_MODULE(syscallname,                           \
78    & syscallname##_syscall32, & syscallname##_sysent32,\
79    NULL, NULL);
80
81int    syscall32_register(int *offset, struct sysent *new_sysent,
82	    struct sysent *old_sysent);
83int    syscall32_deregister(int *offset, struct sysent *old_sysent);
84int    syscall32_module_handler(struct module *mod, int what, void *arg);
85
86register_t *freebsd32_copyout_strings(struct image_params *imgp);
87
88#endif /* !_COMPAT_FREEBSD32_FREEBSD32_UTIL_H_ */
89