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: releng/8.2/sys/compat/linux/linux_util.h 213975 2010-10-17 13:47:03Z kib $
32 */
33
34 #ifndef _LINUX_UTIL_H_
35 #define _LINUX_UTIL_H_
36
37 #include <vm/vm.h>
38 #include <vm/vm_param.h>
39 #include <vm/pmap.h>
40 #include <machine/vmparam.h>
41 #include <sys/exec.h>
42 #include <sys/sysent.h>
43 #include <sys/syslog.h>
44 #include <sys/cdefs.h>
45 #include <sys/uio.h>
46
47 extern const char linux_emul_path[];
48
49 int linux_emul_convpath(struct thread *, const char *, enum uio_seg, char **, int, int);
50
51 #define LCONVPATH_AT(td, upath, pathp, i, dfd) \
52 do { \
53 int _error; \
54 \
55 _error = linux_emul_convpath(td, upath, UIO_USERSPACE, \
56 pathp, i, dfd); \
57 if (*(pathp) == NULL) \
58 return (_error); \
59 } while (0)
60
61 #define LCONVPATH(td, upath, pathp, i) \
62 LCONVPATH_AT(td, upath, pathp, i, AT_FDCWD)
63
64 #define LCONVPATHEXIST(td, upath, pathp) LCONVPATH(td, upath, pathp, 0)
65 #define LCONVPATHEXIST_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 0, dfd)
66 #define LCONVPATHCREAT(td, upath, pathp) LCONVPATH(td, upath, pathp, 1)
67 #define LCONVPATHCREAT_AT(td, upath, pathp, dfd) LCONVPATH_AT(td, upath, pathp, 1, dfd)
68 #define LFREEPATH(path) free(path, M_TEMP)
69
70 #define DUMMY(s) \
71 int \
72 linux_ ## s(struct thread *td, struct linux_ ## s ## _args *args) \
73 { \
74 static pid_t pid; \
75 \
76 if (pid != td->td_proc->p_pid) { \
77 linux_msg(td, "syscall %s not implemented", #s); \
78 pid = td->td_proc->p_pid; \
79 }; \
80 return (ENOSYS); \
81 } \
82 struct __hack
83
84 void linux_msg(const struct thread *td, const char *fmt, ...)
85 __printflike(2, 3);
86
87 struct linux_device_handler {
88 char *bsd_driver_name;
89 char *linux_driver_name;
90 char *bsd_device_name;
91 char *linux_device_name;
92 int linux_major;
93 int linux_minor;
94 int linux_char_device;
95 };
96
97 int linux_device_register_handler(struct linux_device_handler *h);
98 int linux_device_unregister_handler(struct linux_device_handler *h);
99 char *linux_driver_get_name_dev(device_t dev);
100 int linux_driver_get_major_minor(char *node, int *major, int *minor);
101 char *linux_get_char_devices(void);
102 void linux_free_get_char_devices(char *string);
103
104 #if defined(KTR)
105
106 #define KTR_LINUX KTR_SUBSYS
107 #define LINUX_CTRFMT(nm, fmt) #nm"("fmt")"
108
109 #define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6) do { \
110 if (ldebug(f)) \
111 CTR6(KTR_LINUX, LINUX_CTRFMT(f, m), \
112 p1, p2, p3, p4, p5, p6); \
113 } while (0)
114
115 #define LINUX_CTR(f) LINUX_CTR6(f, "", 0, 0, 0, 0, 0, 0)
116 #define LINUX_CTR0(f, m) LINUX_CTR6(f, m, 0, 0, 0, 0, 0, 0)
117 #define LINUX_CTR1(f, m, p1) LINUX_CTR6(f, m, p1, 0, 0, 0, 0, 0)
118 #define LINUX_CTR2(f, m, p1, p2) LINUX_CTR6(f, m, p1, p2, 0, 0, 0, 0)
119 #define LINUX_CTR3(f, m, p1, p2, p3) LINUX_CTR6(f, m, p1, p2, p3, 0, 0, 0)
120 #define LINUX_CTR4(f, m, p1, p2, p3, p4) LINUX_CTR6(f, m, p1, p2, p3, p4, 0, 0)
121 #define LINUX_CTR5(f, m, p1, p2, p3, p4, p5) LINUX_CTR6(f, m, p1, p2, p3, p4, p5, 0)
122 #else
123 #define LINUX_CTR(f)
124 #define LINUX_CTR0(f, m)
125 #define LINUX_CTR1(f, m, p1)
126 #define LINUX_CTR2(f, m, p1, p2)
127 #define LINUX_CTR3(f, m, p1, p2, p3)
128 #define LINUX_CTR4(f, m, p1, p2, p3, p4)
129 #define LINUX_CTR5(f, m, p1, p2, p3, p4, p5)
130 #define LINUX_CTR6(f, m, p1, p2, p3, p4, p5, p6)
131 #endif
132
133 #endif /* !_LINUX_UTIL_H_ */
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