2 * 43BSD_VM.C - 4.3BSD compatibility virtual memory syscalls
4 * Copyright (c) 1988 University of Utah.
5 * Copyright (c) 1991, 1993
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
9 * the Systems Programming Group of the University of Utah Computer
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 * must display the following acknowledgement:
22 * This product includes software developed by the University of
23 * California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * $DragonFly: src/sys/emulation/43bsd/43bsd_vm.c,v 1.4 2006/09/17 21:07:25 dillon Exp $
41 * from: DragonFly vm/vm_unix.c,v 1.3
42 * from: DragonFly vm/vm_mmap.c,v 1.15
45 #include "opt_compat.h"
47 #include <sys/param.h>
48 #include <sys/sysproto.h>
49 #include <sys/kern_syscall.h>
52 #include <sys/thread2.h>
55 sys_ovadvise(struct ovadvise_args *uap)
61 sys_ogetpagesize(struct getpagesize_args *uap)
63 uap->sysmsg_result = PAGE_SIZE;
68 sys_ommap(struct ommap_args *uap)
70 static const char cvtbsdprot[8] = {
74 PROT_EXEC | PROT_WRITE,
76 PROT_EXEC | PROT_READ,
77 PROT_WRITE | PROT_READ,
78 PROT_EXEC | PROT_WRITE | PROT_READ,
80 int error, flags, prot;
82 #define OMAP_ANON 0x0002
83 #define OMAP_COPY 0x0020
84 #define OMAP_SHARED 0x0010
85 #define OMAP_FIXED 0x0100
86 #define OMAP_INHERIT 0x0800
88 prot = cvtbsdprot[uap->prot & 0x7];
90 if (uap->flags & OMAP_ANON)
92 if (uap->flags & OMAP_COPY)
94 if (uap->flags & OMAP_SHARED)
98 if (uap->flags & OMAP_FIXED)
100 if (uap->flags & OMAP_INHERIT)
101 flags |= MAP_INHERIT;
103 error = kern_mmap(curproc->p_vmspace, uap->addr, uap->len,
104 prot, flags, uap->fd, uap->pos,
105 &uap->sysmsg_resultp);