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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/globals.h" | 5 #include "vm/globals.h" |
6 #if defined(TARGET_OS_LINUX) | 6 #if defined(TARGET_OS_LINUX) |
7 | 7 |
8 #include "vm/virtual_memory.h" | 8 #include "vm/virtual_memory.h" |
9 | 9 |
10 #include <sys/mman.h> // NOLINT | 10 #include <sys/mman.h> // NOLINT |
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45 return; | 45 return; |
46 } | 46 } |
47 | 47 |
48 if (munmap(address, size) != 0) { | 48 if (munmap(address, size) != 0) { |
49 FATAL("munmap failed\n"); | 49 FATAL("munmap failed\n"); |
50 } | 50 } |
51 } | 51 } |
52 | 52 |
53 | 53 |
54 VirtualMemory::~VirtualMemory() { | 54 VirtualMemory::~VirtualMemory() { |
55 unmap(address(), reserved_size_); | 55 if (!embedder_allocated()) { |
| 56 unmap(address(), reserved_size_); |
| 57 } |
56 } | 58 } |
57 | 59 |
58 | 60 |
59 bool VirtualMemory::FreeSubSegment(void* address, intptr_t size) { | 61 bool VirtualMemory::FreeSubSegment(void* address, intptr_t size) { |
60 unmap(address, size); | 62 unmap(address, size); |
61 return true; | 63 return true; |
62 } | 64 } |
63 | 65 |
64 | 66 |
65 bool VirtualMemory::Commit(uword addr, intptr_t size, bool executable) { | 67 bool VirtualMemory::Commit(uword addr, intptr_t size, bool executable) { |
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100 } | 102 } |
101 return (mprotect(reinterpret_cast<void*>(page_address), | 103 return (mprotect(reinterpret_cast<void*>(page_address), |
102 end_address - page_address, | 104 end_address - page_address, |
103 prot) == 0); | 105 prot) == 0); |
104 } | 106 } |
105 | 107 |
106 | 108 |
107 } // namespace dart | 109 } // namespace dart |
108 | 110 |
109 #endif // defined(TARGET_OS_LINUX) | 111 #endif // defined(TARGET_OS_LINUX) |
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