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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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46 return; | 46 return; |
47 } | 47 } |
48 | 48 |
49 if (munmap(address, size) != 0) { | 49 if (munmap(address, size) != 0) { |
50 FATAL("munmap failed\n"); | 50 FATAL("munmap failed\n"); |
51 } | 51 } |
52 } | 52 } |
53 | 53 |
54 | 54 |
55 VirtualMemory::~VirtualMemory() { | 55 VirtualMemory::~VirtualMemory() { |
56 if (!embedder_allocated()) { | 56 if (vm_owns_region()) { |
57 unmap(address(), reserved_size_); | 57 unmap(address(), reserved_size_); |
58 } | 58 } |
59 } | 59 } |
60 | 60 |
61 | 61 |
62 bool VirtualMemory::FreeSubSegment(int32_t handle, | 62 bool VirtualMemory::FreeSubSegment(int32_t handle, |
63 void* address, | 63 void* address, |
64 intptr_t size) { | 64 intptr_t size) { |
65 unmap(address, size); | 65 unmap(address, size); |
66 return true; | 66 return true; |
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105 break; | 105 break; |
106 } | 106 } |
107 return (mprotect(reinterpret_cast<void*>(page_address), | 107 return (mprotect(reinterpret_cast<void*>(page_address), |
108 end_address - page_address, prot) == 0); | 108 end_address - page_address, prot) == 0); |
109 } | 109 } |
110 | 110 |
111 | 111 |
112 } // namespace dart | 112 } // namespace dart |
113 | 113 |
114 #endif // defined(TARGET_OS_LINUX) | 114 #endif // defined(TARGET_OS_LINUX) |
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