1 /* 2 * Copyright (C) 2023 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS 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; LOSS 22 * 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 OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #pragma once 30 31 #include <sys/cdefs.h> 32 33 __BEGIN_DECLS 34 35 // PAGE_SIZE is going away in Android. Prefer getpagesize() instead. 36 // 37 // For more info, see https://developer.android.com/16kb-page-size. 38 // 39 // To restore the original behavior, use __BIONIC_DEPRECATED_PAGE_SIZE_MACRO. 40 41 #if (defined(__NDK_MAJOR__) && __NDK_MAJOR__ <= 27 && !defined(__BIONIC_NO_PAGE_SIZE_MACRO)) \ 42 || defined(__BIONIC_DEPRECATED_PAGE_SIZE_MACRO) \ 43 || defined(__arm__) \ 44 || defined(__i386__) 45 #define PAGE_SIZE 4096 46 #define PAGE_MASK (~(PAGE_SIZE - 1)) 47 #endif 48 49 __END_DECLS 50