2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2006 Roman Divacky
5 * Copyright (c) 2013 Dmitry Chagin
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
32 #ifndef _LINUX_EMUL_H_
33 #define _LINUX_EMUL_H_
38 * modeled after similar structure in NetBSD
39 * this will be extended as we need more functionality
41 struct linux_emuldata {
42 int *child_set_tid; /* in clone(): Child's TID to set on clone */
43 int *child_clear_tid;/* in clone(): Child's TID to clear on exit */
45 int flags; /* thread emuldata flags */
46 int em_tid; /* thread id */
48 struct linux_robust_list_head *robust_futexes;
51 struct linux_emuldata *em_find(struct thread *);
53 int linux_exec_imgact_try(struct image_params *);
54 void linux_proc_init(struct thread *, struct thread *, int);
55 void linux_proc_exit(void *, struct proc *);
56 void linux_schedtail(struct thread *);
57 void linux_proc_exec(void *, struct proc *, struct image_params *);
58 void linux_thread_dtor(void *arg __unused, struct thread *);
59 void linux_thread_detach(struct thread *);
60 int linux_common_execve(struct thread *, struct image_args *);
62 /* process emuldata flags */
63 #define LINUX_XDEPR_REQUEUEOP 0x00000001 /* uses deprecated
65 #define LINUX_XUNSUP_EPOLL 0x00000002 /* unsupported epoll events */
66 #define LINUX_XUNSUP_FUTEXPIOP 0x00000004 /* uses unsupported pi futex */
68 struct linux_pemuldata {
69 uint32_t flags; /* process emuldata flags */
70 struct sx pem_sx; /* lock for this struct */
71 void *epoll; /* epoll data */
72 uint32_t persona; /* process execution domain */
73 uint32_t ptrace_flags; /* used by ptrace(2) */
76 #define LINUX_PEM_XLOCK(p) sx_xlock(&(p)->pem_sx)
77 #define LINUX_PEM_XUNLOCK(p) sx_xunlock(&(p)->pem_sx)
78 #define LINUX_PEM_SLOCK(p) sx_slock(&(p)->pem_sx)
79 #define LINUX_PEM_SUNLOCK(p) sx_sunlock(&(p)->pem_sx)
81 struct linux_pemuldata *pem_find(struct proc *);
83 extern const int linux_errtbl[];
85 #endif /* !_LINUX_EMUL_H_ */