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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 #ifndef V8_ZONE_INL_H_ | 28 #ifndef V8_ZONE_INL_H_ |
29 #define V8_ZONE_INL_H_ | 29 #define V8_ZONE_INL_H_ |
30 | 30 |
31 #include "zone.h" | 31 #include "zone.h" |
32 | 32 |
33 #ifdef ADDRESS_SANITIZER | 33 #ifdef V8_USE_ADDRESS_SANITIZER |
34 #include <sanitizer/asan_interface.h> | 34 #include <sanitizer/asan_interface.h> |
35 #else | 35 #else |
36 #define ASAN_UNPOISON_MEMORY_REGION(start, size) ((void) 0) | 36 #define ASAN_UNPOISON_MEMORY_REGION(start, size) ((void) 0) |
37 #endif | 37 #endif |
38 | 38 |
39 #include "counters.h" | 39 #include "counters.h" |
40 #include "isolate.h" | 40 #include "isolate.h" |
41 #include "utils.h" | 41 #include "utils.h" |
42 #include "v8-counters.h" | 42 #include "v8-counters.h" |
43 | 43 |
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57 if (kPointerSize == 4 && kAlignment == 4) { | 57 if (kPointerSize == 4 && kAlignment == 4) { |
58 position_ += ((~size) & 4) & (reinterpret_cast<intptr_t>(position_) & 4); | 58 position_ += ((~size) & 4) & (reinterpret_cast<intptr_t>(position_) & 4); |
59 } else { | 59 } else { |
60 ASSERT(kAlignment >= kPointerSize); | 60 ASSERT(kAlignment >= kPointerSize); |
61 } | 61 } |
62 | 62 |
63 // Check if the requested size is available without expanding. | 63 // Check if the requested size is available without expanding. |
64 Address result = position_; | 64 Address result = position_; |
65 | 65 |
66 int size_with_redzone = | 66 int size_with_redzone = |
67 #ifdef ADDRESS_SANITIZER | 67 #ifdef V8_USE_ADDRESS_SANITIZER |
68 size + kASanRedzoneBytes; | 68 size + kASanRedzoneBytes; |
69 #else | 69 #else |
70 size; | 70 size; |
71 #endif | 71 #endif |
72 | 72 |
73 if (size_with_redzone > limit_ - position_) { | 73 if (size_with_redzone > limit_ - position_) { |
74 result = NewExpand(size_with_redzone); | 74 result = NewExpand(size_with_redzone); |
75 } else { | 75 } else { |
76 position_ += size_with_redzone; | 76 position_ += size_with_redzone; |
77 } | 77 } |
78 | 78 |
79 #ifdef ADDRESS_SANITIZER | 79 #ifdef V8_USE_ADDRESS_SANITIZER |
80 Address redzone_position = result + size; | 80 Address redzone_position = result + size; |
81 ASSERT(redzone_position + kASanRedzoneBytes == position_); | 81 ASSERT(redzone_position + kASanRedzoneBytes == position_); |
82 ASAN_POISON_MEMORY_REGION(redzone_position, kASanRedzoneBytes); | 82 ASAN_POISON_MEMORY_REGION(redzone_position, kASanRedzoneBytes); |
83 #endif | 83 #endif |
84 | 84 |
85 // Check that the result has the proper alignment and return it. | 85 // Check that the result has the proper alignment and return it. |
86 ASSERT(IsAddressAligned(result, kAlignment, 0)); | 86 ASSERT(IsAddressAligned(result, kAlignment, 0)); |
87 allocation_size_ += size; | 87 allocation_size_ += size; |
88 return reinterpret_cast<void*>(result); | 88 return reinterpret_cast<void*>(result); |
89 } | 89 } |
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134 | 134 |
135 template <typename T> | 135 template <typename T> |
136 void* ZoneSplayTree<T>::operator new(size_t size, Zone* zone) { | 136 void* ZoneSplayTree<T>::operator new(size_t size, Zone* zone) { |
137 return zone->New(static_cast<int>(size)); | 137 return zone->New(static_cast<int>(size)); |
138 } | 138 } |
139 | 139 |
140 | 140 |
141 } } // namespace v8::internal | 141 } } // namespace v8::internal |
142 | 142 |
143 #endif // V8_ZONE_INL_H_ | 143 #endif // V8_ZONE_INL_H_ |
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