1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2006 Roman Divacky
5 * Copyright (c) 2013 Dmitry Chagin
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 */
31
32 #ifndef _LINUX_EMUL_H_
33 #define _LINUX_EMUL_H_
34
35 /*
36 * modeled after similar structure in NetBSD
37 * this will be extended as we need more functionality
38 */
39 struct linux_emuldata {
40 int *child_set_tid; /* in clone(): Child's TID to set on clone */
41 int *child_clear_tid;/* in clone(): Child's TID to clear on exit */
42
43 int flags; /* thread emuldata flags */
44 int em_tid; /* thread id */
45
46 struct linux_robust_list_head *robust_futexes;
47 };
48
49 struct linux_emuldata *em_find(struct thread *);
50
51 int linux_exec_imgact_try(struct image_params *);
52 void linux_proc_init(struct thread *, struct thread *, int);
53 void linux_proc_exit(void *, struct proc *);
54 void linux_schedtail(struct thread *);
55 void linux_proc_exec(void *, struct proc *, struct image_params *);
56 void linux_thread_dtor(void *arg __unused, struct thread *);
57 void linux_thread_detach(struct thread *);
58 int linux_common_execve(struct thread *, struct image_args *);
59
60 /* process emuldata flags */
61 #define LINUX_XDEPR_REQUEUEOP 0x00000001 /* uses deprecated
62 futex REQUEUE op*/
63 #define LINUX_XUNSUP_EPOLL 0x00000002 /* unsupported epoll events */
64 #define LINUX_XUNSUP_FUTEXPIOP 0x00000004 /* uses unsupported pi futex */
65
66 struct linux_pemuldata {
67 uint32_t flags; /* process emuldata flags */
68 struct sx pem_sx; /* lock for this struct */
69 void *epoll; /* epoll data */
70 uint32_t persona; /* process execution domain */
71 };
72
73 #define LINUX_PEM_XLOCK(p) sx_xlock(&(p)->pem_sx)
74 #define LINUX_PEM_XUNLOCK(p) sx_xunlock(&(p)->pem_sx)
75 #define LINUX_PEM_SLOCK(p) sx_slock(&(p)->pem_sx)
76 #define LINUX_PEM_SUNLOCK(p) sx_sunlock(&(p)->pem_sx)
77
78 struct linux_pemuldata *pem_find(struct proc *);
79
80 extern const int linux_errtbl[];
81
82 #endif /* !_LINUX_EMUL_H_ */
Cache object: 8cb9f74b72219545dcee0e2c9d324a82
|