1 /* $NetBSD: vm_12.c,v 1.21 2019/01/27 02:08:39 pgoyette Exp $ */
2
3 /*
4 * Copyright (c) 1997 Matthew R. Green
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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: vm_12.c,v 1.21 2019/01/27 02:08:39 pgoyette Exp $");
31
32 #if defined(_KERNEL_OPT)
33 #include "opt_compat_netbsd.h"
34 #endif
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/syscall.h>
39 #include <sys/syscallvar.h>
40 #include <sys/syscallargs.h>
41
42 #include <sys/swap.h>
43 #include <sys/mman.h>
44
45 #include <compat/common/compat_mod.h>
46
47 static const struct syscall_package vm_12_syscalls[] = {
48 { SYS_compat_12_msync, 0, (sy_call_t *)compat_12_sys_msync },
49 { SYS_compat_12_oswapon, 0, (sy_call_t *)compat_12_sys_swapon },
50 { 0, 0, NULL }
51 };
52
53 int
compat_12_sys_swapon(struct lwp * l,const struct compat_12_sys_swapon_args * uap,register_t * retval)54 compat_12_sys_swapon(struct lwp *l,
55 const struct compat_12_sys_swapon_args *uap, register_t *retval)
56 {
57 /* {
58 syscallarg(const char *) name;
59 } */
60 struct sys_swapctl_args ua;
61
62 SCARG(&ua, cmd) = SWAP_ON;
63 /*XXXUNCONST*/
64 SCARG(&ua, arg) = __UNCONST(SCARG(uap, name));
65 SCARG(&ua, misc) = 0; /* priority */
66 return (sys_swapctl(l, &ua, retval));
67 }
68
69 int
compat_12_sys_msync(struct lwp * l,const struct compat_12_sys_msync_args * uap,register_t * retval)70 compat_12_sys_msync(struct lwp *l,
71 const struct compat_12_sys_msync_args *uap, register_t *retval)
72 {
73 /* {
74 syscallarg(void *) addr;
75 syscallarg(size_t) len;
76 } */
77 struct sys___msync13_args ua;
78
79 SCARG(&ua, addr) = SCARG(uap, addr);
80 SCARG(&ua, len) = SCARG(uap, len);
81 SCARG(&ua, flags) = MS_SYNC | MS_INVALIDATE;
82 return (sys___msync13(l, &ua, retval));
83 }
84
85 int
vm_12_init(void)86 vm_12_init(void)
87 {
88
89 return syscall_establish(NULL, vm_12_syscalls);
90 }
91
92 int
vm_12_fini(void)93 vm_12_fini(void)
94 {
95
96 return syscall_disestablish(NULL, vm_12_syscalls);
97 }
98