1 /*
2 * Copyright (c) 2004, 2006 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23 #ifndef NO_SYSCALL_LEGACY
24
25 #define _NONSTD_SOURCE
26 #include <sys/cdefs.h>
27
28 #include <sys/types.h>
29 #include <sys/mman.h>
30 #include <mach/vm_param.h>
31
32 int __msync_nocancel(void *, size_t, int);
33
34 /*
35 * Stub function for legacy version
36 */
37 int
msync(void * addr,size_t len,int flags)38 msync(void *addr, size_t len, int flags)
39 {
40 size_t offset;
41
42 /*
43 * Page-align "addr" since the system now requires it
44 * for standards compliance.
45 * Update "len" to reflect the alignment.
46 */
47 offset = ((uintptr_t) addr) & PAGE_MASK;
48 addr = (void *) (((uintptr_t) addr) & ~PAGE_MASK);
49 len += offset;
50 return __msync_nocancel(addr, len, flags);
51 }
52
53 #endif /* NO_SYSCALL_LEGACY */
54