1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/*
* 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 <stdlib.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)
#define MAX_SIZE_T (~(size_t)0)
// This must match the alignment used by dlmalloc.
#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 {
size_t count;
HashEntry* slots[HASHTABLE_SIZE];
};
/* Entry in malloc dispatch table. */
typedef void* (*MallocDebugMalloc)(size_t);
typedef void (*MallocDebugFree)(void*);
typedef void* (*MallocDebugCalloc)(size_t, size_t);
typedef void* (*MallocDebugRealloc)(void*, size_t);
typedef void* (*MallocDebugMemalign)(size_t, size_t);
typedef size_t (*MallocDebugMallocUsableSize)(const void*);
struct MallocDebug {
MallocDebugMalloc malloc;
MallocDebugFree free;
MallocDebugCalloc calloc;
MallocDebugRealloc realloc;
MallocDebugMemalign memalign;
MallocDebugMallocUsableSize malloc_usable_size;
};
/* Malloc debugging initialization and finalization routines.
*
* These routines must be implemented in .so modules that implement malloc
* debugging. The are is called once per process from malloc_init_impl and
* malloc_fini_impl respectively.
*
* They are implemented in bionic/libc/bionic/malloc_debug_common.c when malloc
* debugging gets initialized for the process.
*
* MallocDebugInit returns:
* 0 on success, -1 on failure.
*/
typedef int (*MallocDebugInit)();
typedef void (*MallocDebugFini)();
// =============================================================================
// 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
|
