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 * $FreeBSD$
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#include <sys/uio.h>
38
39#include <vm/vm.h>
40#include <vm/vm_param.h>
41#include <vm/pmap.h>
42
43struct freebsd32_ps_strings {
44	u_int32_t ps_argvstr;	/* first of 0 or more argument strings */
45	int	ps_nargvstr;	/* the number of argument strings */
46	u_int32_t ps_envstr;	/* first of 0 or more environment strings */
47	int	ps_nenvstr;	/* the number of environment strings */
48};
49
50#if defined(__amd64__) || defined(__ia64__)
51#include <compat/ia32/ia32_util.h>
52#endif
53
54#define FREEBSD32_PS_STRINGS	\
55	(FREEBSD32_USRSTACK - sizeof(struct freebsd32_ps_strings))
56
57extern struct sysent freebsd32_sysent[];
58
59#define SYSCALL32_MODULE(name, offset, new_sysent, evh, arg)   \
60static struct syscall_module_data name##_syscall32_mod = {     \
61       evh, arg, offset, new_sysent, { 0, NULL }               \
62};                                                             \
63                                                               \
64static moduledata_t name##32_mod = {                           \
65       "sys32/" #name,                                         \
66       syscall32_module_handler,                               \
67       &name##_syscall32_mod                                   \
68};                                                             \
69DECLARE_MODULE(name##32, name##32_mod, SI_SUB_SYSCALLS, SI_ORDER_MIDDLE)
70
71#define SYSCALL32_MODULE_HELPER(syscallname)            \
72static int syscallname##_syscall32 = FREEBSD32_SYS_##syscallname; \
73static struct sysent syscallname##_sysent32 = {         \
74    (sizeof(struct syscallname ## _args )               \
75     / sizeof(register_t)),                             \
76    (sy_call_t *)& syscallname                          \
77};                                                      \
78SYSCALL32_MODULE(syscallname,                           \
79    & syscallname##_syscall32, & syscallname##_sysent32,\
80    NULL, NULL);
81
82#define SYSCALL32_INIT_HELPER(syscallname) {			\
83    .new_sysent = {						\
84	.sy_narg = (sizeof(struct syscallname ## _args )	\
85	    / sizeof(register_t)),				\
86	.sy_call = (sy_call_t *)& syscallname,			\
87    },								\
88    .syscall_no = FREEBSD32_SYS_##syscallname			\
89}
90
91#define SYSCALL32_INIT_HELPER_COMPAT(syscallname) {		\
92    .new_sysent = {						\
93	.sy_narg = (sizeof(struct syscallname ## _args )	\
94	    / sizeof(register_t)),				\
95	.sy_call = (sy_call_t *)& sys_ ## syscallname,		\
96    },								\
97    .syscall_no = FREEBSD32_SYS_##syscallname			\
98}
99
100int    syscall32_register(int *offset, struct sysent *new_sysent,
101	    struct sysent *old_sysent);
102int    syscall32_deregister(int *offset, struct sysent *old_sysent);
103int    syscall32_module_handler(struct module *mod, int what, void *arg);
104int    syscall32_helper_register(struct syscall_helper_data *sd);
105int    syscall32_helper_unregister(struct syscall_helper_data *sd);
106
107struct iovec32;
108struct rusage32;
109register_t *freebsd32_copyout_strings(struct image_params *imgp);
110int	freebsd32_copyiniov(struct iovec32 *iovp, u_int iovcnt,
111	    struct iovec **iov, int error);
112void	freebsd32_rusage_out(const struct rusage *s, struct rusage32 *s32);
113
114struct image_args;
115int freebsd32_exec_copyin_args(struct image_args *args, char *fname,
116	    enum uio_seg segflg, u_int32_t *argv, u_int32_t *envv);
117
118#endif /* !_COMPAT_FREEBSD32_FREEBSD32_UTIL_H_ */
119