linux_util.h revision 177997 
1/*-
2 * Copyright (c) 1994 Christos Zoulas
3 * Copyright (c) 1995 Frank van der Linden
4 * Copyright (c) 1995 Scott Bartram
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, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * from: svr4_util.h,v 1.5 1994/11/18 02:54:31 christos Exp
30 * from: linux_util.h,v 1.2 1995/03/05 23:23:50 fvdl Exp
31 * $FreeBSD: head/sys/compat/linux/linux_util.h 177997 2008-04-08 09:45:49Z kib $
32 */
33
34/*
35 * This file is pretty much the same as Christos' svr4_util.h
36 * (for now).
37 */
38
39#ifndef	_LINUX_UTIL_H_
40#define	_LINUX_UTIL_H_
41
42#include <vm/vm.h>
43#include <vm/vm_param.h>
44#include <vm/pmap.h>
45#include <machine/vmparam.h>
46#include <sys/exec.h>
47#include <sys/sysent.h>
48#include <sys/syslog.h>
49#include <sys/cdefs.h>
50#include <sys/uio.h>
51
52extern const char linux_emul_path[];
53
54int linux_emul_convpath(struct thread *, const char *, enum uio_seg, char **, int, int);
55
56#define LCONVPATH_AT(td, upath, pathp, i, dfd)				\
57	do {								\
58		int _error;						\
59									\
60		_error = linux_emul_convpath(td, upath, UIO_USERSPACE,	\
61		    pathp, i, dfd);					\
62		if (*(pathp) == NULL)					\
63			return (_error);				\
64	} while (0)
65
66#define LCONVPATH(td, upath, pathp, i) 	\
67   LCONVPATH_AT(td, upath, pathp, i, AT_FDCWD)
68
69#define LCONVPATHEXIST(td, upath, pathp) LCONVPATH(td, upath, pathp, 0)
70#define LCONVPATHEXIST_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 0, dfd)
71#define LCONVPATHCREAT(td, upath, pathp) LCONVPATH(td, upath, pathp, 1)
72#define LCONVPATHCREAT_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 1, dfd)
73#define LFREEPATH(path)	free(path, M_TEMP)
74
75#define DUMMY(s)							\
76int									\
77linux_ ## s(struct thread *td, struct linux_ ## s ## _args *args)	\
78{									\
79	static pid_t pid;						\
80									\
81	if (pid != td->td_proc->p_pid) {				\
82		linux_msg(td, "syscall %s not implemented", #s);	\
83		pid = td->td_proc->p_pid;				\
84	};								\
85	return (ENOSYS);						\
86}									\
87struct __hack
88
89void linux_msg(const struct thread *td, const char *fmt, ...)
90	__printflike(2, 3);
91
92struct linux_device_handler {
93	char	*bsd_driver_name;
94	char	*linux_driver_name;
95	char	*bsd_device_name;
96	char	*linux_device_name;
97	int	linux_major;
98	int	linux_minor;
99	int	linux_char_device;
100};
101
102int	linux_device_register_handler(struct linux_device_handler *h);
103int	linux_device_unregister_handler(struct linux_device_handler *h);
104char	*linux_driver_get_name_dev(device_t dev);
105int	linux_driver_get_major_minor(char *node, int *major, int *minor);
106char	*linux_get_char_devices(void);
107void	linux_free_get_char_devices(char *string);
108
109#endif /* !_LINUX_UTIL_H_ */
110