2 * Copyright (c) 2006 Roman Divacky
3 * Copyright (c) 2013 Dmitry Chagin
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer
11 * in this position and unchanged.
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
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.
32 #ifndef _LINUX_EMUL_H_
33 #define _LINUX_EMUL_H_
36 * modeled after similar structure in NetBSD
37 * this will be extended as we need more functionality
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 */
43 int pdeath_signal; /* parent death signal */
44 int flags; /* thread emuldata flags */
45 int em_tid; /* thread id */
47 struct linux_robust_list_head *robust_futexes;
50 struct linux_emuldata *em_find(struct thread *);
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 *);
60 /* process emuldata flags */
61 #define LINUX_XDEPR_REQUEUEOP 0x00000001 /* uses deprecated
63 #define LINUX_XUNSUP_EPOLL 0x00000002 /* unsupported epoll events */
64 #define LINUX_XUNSUP_FUTEXPIOP 0x00000004 /* uses unsupported pi futex */
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 */
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)
78 struct linux_pemuldata *pem_find(struct proc *);
80 #endif /* !_LINUX_EMUL_H_ */