1/*	$NetBSD: linux_mmap.h,v 1.22 2021/09/23 06:56:27 ryo Exp $	*/
2
3/*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Frank van der Linden and Eric Haszlakiewicz.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _LINUX_MMAP_H
33#define _LINUX_MMAP_H
34
35#define LINUX_PROT_NONE		0x00
36#define LINUX_PROT_READ		0x01
37#define LINUX_PROT_WRITE	0x02
38#define LINUX_PROT_EXEC		0x04
39#define LINUX_PROT_GROWSDOWN	0x01000000
40#define LINUX_PROT_GROWSUP	0x02000000
41
42#define LINUX_MAP_SHARED	0x0001
43#define LINUX_MAP_PRIVATE	0x0002
44
45#if defined(__i386__)
46#include <compat/linux/arch/i386/linux_mmap.h>
47#elif defined(__m68k__)
48#include <compat/linux/arch/m68k/linux_mmap.h>
49#elif defined(__alpha__)
50#include <compat/linux/arch/alpha/linux_mmap.h>
51#elif defined(__powerpc__)
52#include <compat/linux/arch/powerpc/linux_mmap.h>
53#elif defined(__mips__)
54#include <compat/linux/arch/mips/linux_mmap.h>
55#elif defined(__aarch64__)
56#include <compat/linux/arch/aarch64/linux_mmap.h>
57#elif defined(__arm__)
58#include <compat/linux/arch/arm/linux_mmap.h>
59#elif defined(__amd64__)
60#include <compat/linux/arch/amd64/linux_mmap.h>
61/*
62 * XXX ERH: All below here are guesses.  The header
63 * XXX ERH: files are correct but the defined(*)
64 * XXX ERH: probably aren't
65 *
66 * XXX ERH: Can probably drop some of these headers: linux
67 * XXX ERH: is stupid about compat stuff.  It doesn't really
68 * XXX ERH: use all the defines, but I don't want to go looking
69 * XXX ERH: through all the kernel sources right now.
70 */
71#elif defined(__sparc__)
72#include <compat/linux/arch/sparc/linux_mmap.h>
73#else
74#error Undefined linux_mmap.h machine type.
75#endif
76
77/*
78 * Ensure the linux_sys_mmap syscall appears to exist:
79 */
80struct linux_sys_mmap_args;
81struct linux_sys_mmap_args {
82	syscallarg(unsigned long) addr;
83	syscallarg(size_t) len;
84	syscallarg(int) prot;
85	syscallarg(int) flags;
86	syscallarg(int) fd;
87	syscallarg(linux_off_t) offset;
88};
89
90/*
91 * Same arguments, but different meaning for "offset".
92 * See linux_misc.c:linux_sys_mmap2().
93 */
94#define linux_sys_mmap2_args linux_sys_mmap_args
95
96#ifdef _KERNEL
97__BEGIN_DECLS
98int linux_sys_mmap(struct lwp *p, const struct linux_sys_mmap_args *v, register_t *retval);
99int linux_sys_mmap2(struct lwp *p, const struct linux_sys_mmap2_args *v, register_t *retval);
100
101__END_DECLS
102#endif /* !_KERNEL */
103
104#endif /* !_LINUX_MMAP_H */
105