1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef LIBC_BIONIC_DLMALLOC_H_ 18 #define LIBC_BIONIC_DLMALLOC_H_ 19 20 #include <sys/cdefs.h> 21 #include <stddef.h> 22 23 /* Configure dlmalloc. */ 24 #define HAVE_GETPAGESIZE 1 25 #define MALLOC_INSPECT_ALL 1 26 #define MSPACES 0 27 #define REALLOC_ZERO_BYTES_FREES 1 28 #define USE_DL_PREFIX 1 29 #define USE_LOCKS 1 30 #define LOCK_AT_FORK 1 31 #define USE_RECURSIVE_LOCK 0 32 #define USE_SPIN_LOCKS 0 33 #define DEFAULT_MMAP_THRESHOLD (64U * 1024U) 34 35 #define malloc_getpagesize getpagesize() 36 37 #if !defined(__LP64__) 38 /* dlmalloc_usable_size and dlmalloc were exposed in the NDK and some 39 * apps actually used them. Rename these functions out of the way 40 * for 32 bit architectures so that ndk_cruft.cpp can expose 41 * compatibility shims with these names. 42 */ 43 #define dlmalloc_usable_size dlmalloc_usable_size_real 44 #define dlmalloc dlmalloc_real 45 #endif 46 47 /* These two symbols are exported on devices that use dlmalloc. 48 * In order to be consistent across all devices, they will 49 * be exported everywhere. Move the real symbols out of the way 50 * so that ndk_cruft.cpp can export these symbols. 51 */ 52 #define dlmalloc_inspect_all dlmalloc_inspect_all_real 53 #define dlmalloc_trim dlmalloc_trim_real 54 55 /* Include the proper definitions. */ 56 #include "../upstream-dlmalloc/malloc.h" 57 58 #endif // LIBC_BIONIC_DLMALLOC_H_ 59