1/* 2 * Copyright (C) 2009 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/* 30 * Contains declarations of types and constants used by malloc leak 31 * detection code in both, libc and libc_malloc_debug libraries. 32 */ 33#ifndef MALLOC_DEBUG_COMMON_H 34#define MALLOC_DEBUG_COMMON_H 35 36#include <pthread.h> 37#include <stdint.h> 38#include <stdlib.h> 39 40#include "private/bionic_config.h" 41#include "private/libc_logging.h" 42 43#define HASHTABLE_SIZE 1543 44#define BACKTRACE_SIZE 32 45/* flag definitions, currently sharing storage with "size" */ 46#define SIZE_FLAG_ZYGOTE_CHILD (1<<31) 47#define SIZE_FLAG_MASK (SIZE_FLAG_ZYGOTE_CHILD) 48 49// This must match the alignment used by the malloc implementation. 50#ifndef MALLOC_ALIGNMENT 51#define MALLOC_ALIGNMENT ((size_t)(2 * sizeof(void *))) 52#endif 53 54// ============================================================================= 55// Structures 56// ============================================================================= 57 58struct HashEntry { 59 size_t slot; 60 HashEntry* prev; 61 HashEntry* next; 62 size_t numEntries; 63 // fields above "size" are NOT sent to the host 64 size_t size; 65 size_t allocations; 66 uintptr_t backtrace[0]; 67}; 68 69struct HashTable { 70 pthread_mutex_t lock; 71 size_t count; 72 HashEntry* slots[HASHTABLE_SIZE]; 73}; 74 75/* Entry in malloc dispatch table. */ 76typedef void* (*MallocDebugCalloc)(size_t, size_t); 77typedef void (*MallocDebugFree)(void*); 78typedef struct mallinfo (*MallocDebugMallinfo)(); 79typedef void* (*MallocDebugMalloc)(size_t); 80typedef size_t (*MallocDebugMallocUsableSize)(const void*); 81typedef void* (*MallocDebugMemalign)(size_t, size_t); 82typedef int (*MallocDebugPosixMemalign)(void**, size_t, size_t); 83#if defined(HAVE_DEPRECATED_MALLOC_FUNCS) 84typedef void* (*MallocDebugPvalloc)(size_t); 85#endif 86typedef void* (*MallocDebugRealloc)(void*, size_t); 87#if defined(HAVE_DEPRECATED_MALLOC_FUNCS) 88typedef void* (*MallocDebugValloc)(size_t); 89#endif 90 91struct MallocDebug { 92 MallocDebugCalloc calloc; 93 MallocDebugFree free; 94 MallocDebugMallinfo mallinfo; 95 MallocDebugMalloc malloc; 96 MallocDebugMallocUsableSize malloc_usable_size; 97 MallocDebugMemalign memalign; 98 MallocDebugPosixMemalign posix_memalign; 99#if defined(HAVE_DEPRECATED_MALLOC_FUNCS) 100 MallocDebugPvalloc pvalloc; 101#endif 102 MallocDebugRealloc realloc; 103#if defined(HAVE_DEPRECATED_MALLOC_FUNCS) 104 MallocDebugValloc valloc; 105#endif 106}; 107 108typedef bool (*MallocDebugInit)(HashTable*, const MallocDebug*); 109typedef void (*MallocDebugFini)(int); 110 111// ============================================================================= 112// log functions 113// ============================================================================= 114 115#define debug_log(format, ...) \ 116 __libc_format_log(ANDROID_LOG_DEBUG, "malloc_leak_check", (format), ##__VA_ARGS__ ) 117#define error_log(format, ...) \ 118 __libc_format_log(ANDROID_LOG_ERROR, "malloc_leak_check", (format), ##__VA_ARGS__ ) 119#define info_log(format, ...) \ 120 __libc_format_log(ANDROID_LOG_INFO, "malloc_leak_check", (format), ##__VA_ARGS__ ) 121 122#endif // MALLOC_DEBUG_COMMON_H 123