1/* $NetBSD$ */
2
3/*-
4 * Copyright (c) 2012 Jared D. McNeill <jmcneill@invisible.ca>
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 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef _HAVE_SYSCALLEMU_H
30#define _HAVE_SYSCALLEMU_H
31
32#include <sys/cdefs.h>
33#include <sys/syscall.h>
34#include <sys/syscallargs.h>
35
36struct proc;
37
38/*
39 * Process specific syscallemu configuration
40 */
41struct syscallemu_data {
42	vaddr_t		sce_user_start;
43	vaddr_t		sce_user_end;
44	void		*sce_md_syscall;
45};
46
47/*
48 * Get process specific syscallemu data
49 */
50struct syscallemu_data *	syscallemu_getsce(struct proc *);
51
52/*
53 * Set process specific syscallemu data
54 */
55void	syscallemu_setsce(struct proc *, struct syscallemu_data *);
56
57/*
58 * MD specific syscallemu syscall setup (in syscallemu_${MACHINE_ARCH}.c)
59 */
60void *	md_syscallemu(struct proc *);
61
62/* syscall: "syscallemu" ret: "int" args: "uintptr_t" "uintptr_t" */
63#define	SYS_syscallemu		511
64
65struct sys_syscallemu_args {
66	syscallarg(uintptr_t)	user_start;
67	syscallarg(uintptr_t)	user_end;
68};
69check_syscall_args(sys_syscallemu);
70
71int	sys_syscallemu(struct lwp *, const struct sys_syscallemu_args *,
72		       register_t *);
73
74__CTASSERT(SYS_syscallemu >= SYS_MAXSYSCALL);
75__CTASSERT(SYS_syscallemu < SYS_NSYSENT);
76
77#endif /* !_HAVE_SYSCALLEMU_H */
78