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.c,v 1.5 1995/01/22 23:44:50 christos Exp
30 */
31
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD: releng/6.1/sys/compat/linux/linux_util.c 142939 2005-03-01 17:57:45Z jhb $");
34
35 #include <sys/param.h>
36 #include <sys/lock.h>
37 #include <sys/malloc.h>
38 #include <sys/mutex.h>
39 #include <sys/namei.h>
40 #include <sys/proc.h>
41 #include <sys/syscallsubr.h>
42 #include <sys/systm.h>
43 #include <sys/vnode.h>
44
45 #include <machine/stdarg.h>
46
47 #include <compat/linux/linux_util.h>
48
49 const char linux_emul_path[] = "/compat/linux";
50
51 /*
52 * Search an alternate path before passing pathname arguments on
53 * to system calls. Useful for keeping a separate 'emulation tree'.
54 *
55 * If cflag is set, we check if an attempt can be made to create
56 * the named file, i.e. we check if the directory it should
57 * be in exists.
58 */
59 int
60 linux_emul_convpath(td, path, pathseg, pbuf, cflag)
61 struct thread *td;
62 char *path;
63 enum uio_seg pathseg;
64 char **pbuf;
65 int cflag;
66 {
67
68 return (kern_alternate_path(td, linux_emul_path, path, pathseg, pbuf,
69 cflag));
70 }
71
72 void
73 linux_msg(const struct thread *td, const char *fmt, ...)
74 {
75 va_list ap;
76 struct proc *p;
77
78 p = td->td_proc;
79 printf("linux: pid %d (%s): ", (int)p->p_pid, p->p_comm);
80 va_start(ap, fmt);
81 vprintf(fmt, ap);
82 va_end(ap);
83 printf("\n");
84 }
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