1 /*-
2 * Copyright (c) 2006 Roman Divacky
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 without 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: src/sys/compat/linux/linux_emul.h,v 1.8 2008/05/13 20:01:27 rdivacky Exp $
29 */
30
31 #ifndef _LINUX_EMUL_H_
32 #define _LINUX_EMUL_H_
33
34 #include <compat/linux/linux_futex.h>
35
36 struct linux_emuldata_shared {
37 int refs;
38 pid_t group_pid;
39
40 LIST_HEAD(, linux_emuldata) threads; /* head of list of linux threads */
41 };
42
43 /*
44 * modeled after similar structure in NetBSD
45 * this will be extended as we need more functionality
46 */
47 struct linux_emuldata {
48 pid_t pid;
49
50 int *child_set_tid; /* in clone(): Child's TID to set on clone */
51 int *child_clear_tid;/* in clone(): Child's TID to clear on exit */
52
53 struct linux_emuldata_shared *shared;
54
55 int pdeath_signal; /* parent death signal */
56
57 struct linux_robust_list_head *robust_futexes;
58
59 LIST_ENTRY(linux_emuldata) threads; /* list of linux threads */
60 };
61
62 struct linux_emuldata *em_find(struct proc *, int locked);
63
64 #define EMUL_LOCK(l) mtx_lock(l)
65 #define EMUL_UNLOCK(l) mtx_unlock(l)
66
67 #define EMUL_SHARED_RLOCK(l) sx_slock(l)
68 #define EMUL_SHARED_RUNLOCK(l) sx_sunlock(l)
69 #define EMUL_SHARED_WLOCK(l) sx_xlock(l)
70 #define EMUL_SHARED_WUNLOCK(l) sx_xunlock(l)
71
72 /* for em_find use */
73 #define EMUL_DOLOCK 1
74 #define EMUL_DONTLOCK 0
75
76 int linux_proc_init(struct thread *, pid_t, int);
77 void linux_proc_exit(void *, struct proc *);
78 void linux_schedtail(void *, struct proc *);
79 void linux_proc_exec(void *, struct proc *, struct image_params *);
80
81 extern struct sx emul_shared_lock;
82 extern struct mtx emul_lock;
83
84 #endif /* !_LINUX_EMUL_H_ */
85 Cache object: e432f42617eb795e30cf3b623c97cc59
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