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 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 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 86 vm_12_init(void) 87 { 88 89 return syscall_establish(NULL, vm_12_syscalls); 90 } 91 92 int 93 vm_12_fini(void) 94 { 95 96 return syscall_disestablish(NULL, vm_12_syscalls); 97 } 98