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/*
* Copyright (C) 2009 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Contains declarations of types and constants used by malloc leak
* detection code in both, libc and libc_malloc_debug libraries.
*/
#ifndef MALLOC_DEBUG_COMMON_H
#define MALLOC_DEBUG_COMMON_H
#include <pthread.h>
#include <stdint.h>
#include <stdlib.h>
#include "private/bionic_config.h"
#include "private/libc_logging.h"
#define HASHTABLE_SIZE 1543
#define BACKTRACE_SIZE 32
/* flag definitions, currently sharing storage with "size" */
#define SIZE_FLAG_ZYGOTE_CHILD (1<<31)
#define SIZE_FLAG_MASK (SIZE_FLAG_ZYGOTE_CHILD)
// This must match the alignment used by the malloc implementation.
#ifndef MALLOC_ALIGNMENT
#define MALLOC_ALIGNMENT ((size_t)(2 * sizeof(void *)))
#endif
// =============================================================================
// Structures
// =============================================================================
struct HashEntry {
size_t slot;
HashEntry* prev;
HashEntry* next;
size_t numEntries;
// fields above "size" are NOT sent to the host
size_t size;
size_t allocations;
uintptr_t backtrace[0];
};
struct HashTable {
pthread_mutex_t lock;
size_t count;
HashEntry* slots[HASHTABLE_SIZE];
};
/* Entry in malloc dispatch table. */
typedef void* (*MallocDebugCalloc)(size_t, size_t);
typedef void (*MallocDebugFree)(void*);
typedef struct mallinfo (*MallocDebugMallinfo)();
typedef void* (*MallocDebugMalloc)(size_t);
typedef size_t (*MallocDebugMallocUsableSize)(const void*);
typedef void* (*MallocDebugMemalign)(size_t, size_t);
typedef int (*MallocDebugPosixMemalign)(void**, size_t, size_t);
#if defined(HAVE_DEPRECATED_MALLOC_FUNCS)
typedef void* (*MallocDebugPvalloc)(size_t);
#endif
typedef void* (*MallocDebugRealloc)(void*, size_t);
#if defined(HAVE_DEPRECATED_MALLOC_FUNCS)
typedef void* (*MallocDebugValloc)(size_t);
#endif
struct MallocDebug {
MallocDebugCalloc calloc;
MallocDebugFree free;
MallocDebugMallinfo mallinfo;
MallocDebugMalloc malloc;
MallocDebugMallocUsableSize malloc_usable_size;
MallocDebugMemalign memalign;
MallocDebugPosixMemalign posix_memalign;
#if defined(HAVE_DEPRECATED_MALLOC_FUNCS)
MallocDebugPvalloc pvalloc;
#endif
MallocDebugRealloc realloc;
#if defined(HAVE_DEPRECATED_MALLOC_FUNCS)
MallocDebugValloc valloc;
#endif
};
typedef bool (*MallocDebugInit)(HashTable*, const MallocDebug*);
typedef void (*MallocDebugFini)(int);
// =============================================================================
// log functions
// =============================================================================
#define debug_log(format, ...) \
__libc_format_log(ANDROID_LOG_DEBUG, "malloc_leak_check", (format), ##__VA_ARGS__ )
#define error_log(format, ...) \
__libc_format_log(ANDROID_LOG_ERROR, "malloc_leak_check", (format), ##__VA_ARGS__ )
#define info_log(format, ...) \
__libc_format_log(ANDROID_LOG_INFO, "malloc_leak_check", (format), ##__VA_ARGS__ )
#endif // MALLOC_DEBUG_COMMON_H
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