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
|
/*
* Copyright (C) 2017-2021 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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 APPLE INC. ``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 APPLE INC. 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.
*/
#pragma once
#include <wtf/FastMalloc.h>
#include <wtf/StdLibExtras.h>
#include <wtf/text/ASCIILiteral.h>
WTF_ALLOW_UNSAFE_BUFFER_USAGE_BEGIN
#if USE(SYSTEM_MALLOC)
#define GIGACAGE_ENABLED 0
namespace Gigacage {
constexpr bool hasCapacityToUseLargeGigacage = OS_CONSTANT(EFFECTIVE_ADDRESS_WIDTH) > 36;
const size_t primitiveGigacageMask = 0;
enum Kind {
Primitive,
NumberOfKinds
};
inline void ensureGigacage() { }
inline void disablePrimitiveGigacage() { }
inline bool shouldBeEnabled() { return false; }
inline void addPrimitiveDisableCallback(void (*)(void*), void*) { }
inline void removePrimitiveDisableCallback(void (*)(void*), void*) { }
inline void forbidDisablingPrimitiveGigacage() { }
ALWAYS_INLINE bool contains(const void*) { return false; }
ALWAYS_INLINE bool disablingPrimitiveGigacageIsForbidden() { return false; }
ALWAYS_INLINE bool isEnabled() { return false; }
ALWAYS_INLINE bool isEnabled(Kind) { return false; }
ALWAYS_INLINE size_t mask(Kind) { return 0; }
ALWAYS_INLINE size_t footprint(Kind) { return 0; }
ALWAYS_INLINE size_t maxSize(Kind) { return 0; }
ALWAYS_INLINE size_t size(Kind) { return 0; }
template<typename T>
inline T* caged(Kind, T* ptr) { return ptr; }
template<typename T>
inline T* cagedMayBeNull(Kind, T* ptr) { return ptr; }
inline bool isCaged(Kind, const void*) { return false; }
inline void* tryAlignedMalloc(Kind, size_t alignment, size_t size) { return tryFastAlignedMalloc(alignment, size); }
inline void alignedFree(Kind, void* p) { fastAlignedFree(p); }
WTF_EXPORT_PRIVATE void* tryMalloc(Kind, size_t size);
WTF_EXPORT_PRIVATE void* tryZeroedMalloc(Kind, size_t);
WTF_EXPORT_PRIVATE void* tryRealloc(Kind, void*, size_t);
inline void free(Kind, void* p) { fastFree(p); }
WTF_EXPORT_PRIVATE void* tryAllocateZeroedVirtualPages(Kind, size_t size);
WTF_EXPORT_PRIVATE void freeVirtualPages(Kind, void* basePtr, size_t size);
} // namespace Gigacage
#else
#include <bmalloc/Gigacage.h>
namespace Gigacage {
WTF_EXPORT_PRIVATE void* tryAlignedMalloc(Kind, size_t alignment, size_t size);
WTF_EXPORT_PRIVATE void alignedFree(Kind, void*);
WTF_EXPORT_PRIVATE void* tryMalloc(Kind, size_t);
WTF_EXPORT_PRIVATE void* tryZeroedMalloc(Kind, size_t);
WTF_EXPORT_PRIVATE void* tryRealloc(Kind, void*, size_t);
WTF_EXPORT_PRIVATE void free(Kind, void*);
WTF_EXPORT_PRIVATE void* tryAllocateZeroedVirtualPages(Kind, size_t size);
WTF_EXPORT_PRIVATE void freeVirtualPages(Kind, void* basePtr, size_t size);
} // namespace Gigacage
#endif
namespace Gigacage {
WTF_EXPORT_PRIVATE void* tryMallocArray(Kind, size_t numElements, size_t elementSize);
WTF_EXPORT_PRIVATE void* malloc(Kind, size_t);
WTF_EXPORT_PRIVATE void* zeroedMalloc(Kind, size_t);
WTF_EXPORT_PRIVATE void* mallocArray(Kind, size_t numElements, size_t elementSize);
} // namespace Gigacage
WTF_ALLOW_UNSAFE_BUFFER_USAGE_END
|
