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 32int __msync_nocancel(void *, size_t, int); 33 34/* 35 * Stub function for legacy version 36 */ 37int 38msync(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