99 lines
3.4 KiB
C
99 lines
3.4 KiB
C
/*
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* Copyright (C) 2009 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Contains declarations of types and constants used by malloc leak
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* detection code in both, libc and libc_malloc_debug libraries.
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*/
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#ifndef MALLOC_DEBUG_COMMON_H
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#define MALLOC_DEBUG_COMMON_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define HASHTABLE_SIZE 1543
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#define BACKTRACE_SIZE 32
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/* flag definitions, currently sharing storage with "size" */
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#define SIZE_FLAG_ZYGOTE_CHILD (1<<31)
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#define SIZE_FLAG_MASK (SIZE_FLAG_ZYGOTE_CHILD)
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#define MAX_SIZE_T (~(size_t)0)
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// =============================================================================
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// Structures
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// =============================================================================
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typedef struct HashEntry HashEntry;
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struct HashEntry {
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size_t slot;
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HashEntry* prev;
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HashEntry* next;
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size_t numEntries;
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// fields above "size" are NOT sent to the host
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size_t size;
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size_t allocations;
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intptr_t backtrace[0];
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};
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typedef struct HashTable HashTable;
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struct HashTable {
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size_t count;
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HashEntry* slots[HASHTABLE_SIZE];
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};
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/* Entry in malloc dispatch table. */
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typedef struct MallocDebug MallocDebug;
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struct MallocDebug {
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/* Address of the actual malloc routine. */
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void* (*malloc)(size_t bytes);
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/* Address of the actual free routine. */
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void (*free)(void* mem);
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/* Address of the actual calloc routine. */
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void* (*calloc)(size_t n_elements, size_t elem_size);
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/* Address of the actual realloc routine. */
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void* (*realloc)(void* oldMem, size_t bytes);
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/* Address of the actual memalign routine. */
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void* (*memalign)(size_t alignment, size_t bytes);
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};
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/* Malloc debugging initialization routine.
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* This routine must be implemented in .so modules that implement malloc
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* debugging. This routine is called once per process from malloc_init_impl
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* routine implemented in bionic/libc/bionic/malloc_debug_common.c when malloc
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* debugging gets initialized for the process.
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* Return:
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* 0 on success, -1 on failure.
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*/
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typedef int (*MallocDebugInit)(void);
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#ifdef __cplusplus
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}; /* end of extern "C" */
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#endif
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#endif // MALLOC_DEBUG_COMMON_H
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