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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "sky/engine/config.h" | |
6 #include "sky/engine/wtf/AddressSpaceRandomization.h" | 5 #include "sky/engine/wtf/AddressSpaceRandomization.h" |
7 | 6 |
8 #include "sky/engine/wtf/PageAllocator.h" | 7 #include "sky/engine/wtf/PageAllocator.h" |
9 #include "sky/engine/wtf/ProcessID.h" | 8 #include "sky/engine/wtf/ProcessID.h" |
10 #include "sky/engine/wtf/SpinLock.h" | 9 #include "sky/engine/wtf/SpinLock.h" |
11 | 10 |
12 namespace WTF { | 11 namespace WTF { |
13 | 12 |
14 namespace { | 13 namespace { |
15 | 14 |
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90 // This is a good range on Windows, Linux and Mac. | 89 // This is a good range on Windows, Linux and Mac. |
91 // Allocates in the 0.5-1.5GB region. | 90 // Allocates in the 0.5-1.5GB region. |
92 random &= 0x3fffffff; | 91 random &= 0x3fffffff; |
93 random += 0x20000000; | 92 random += 0x20000000; |
94 #endif // CPU(X86_64) | 93 #endif // CPU(X86_64) |
95 random &= kPageAllocationGranularityBaseMask; | 94 random &= kPageAllocationGranularityBaseMask; |
96 return reinterpret_cast<void*>(random); | 95 return reinterpret_cast<void*>(random); |
97 } | 96 } |
98 | 97 |
99 } | 98 } |
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