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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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80 | 80 |
81 HeapObject* object = HeapObject::cast(*p); | 81 HeapObject* object = HeapObject::cast(*p); |
82 if (IncrementalMarking::IsWhite(object)) { | 82 if (IncrementalMarking::IsWhite(object)) { |
83 IncrementalMarking::WhiteToGrey(object); | 83 IncrementalMarking::WhiteToGrey(object); |
84 } | 84 } |
85 } | 85 } |
86 }; | 86 }; |
87 | 87 |
88 | 88 |
89 static void ClearMarkbits(PagedSpace* space) { | 89 static void ClearMarkbits(PagedSpace* space) { |
90 PageIterator it(space, PageIterator::PAGES_IN_USE); | 90 PageIterator it(space); |
91 | 91 |
92 while (it.has_next()) { | 92 while (it.has_next()) { |
93 Page* p = it.next(); | 93 Page* p = it.next(); |
94 p->markbits()->Clear(); | 94 p->markbits()->Clear(); |
95 } | 95 } |
96 } | 96 } |
97 | 97 |
98 | 98 |
99 static void ClearMarkbits() { | 99 static void ClearMarkbits() { |
100 // We are sweeping code and map spaces precisely so clearing is not required. | 100 // TODO: Clear the mark bits in the sweeper. |
101 ClearMarkbits(Heap::old_pointer_space()); | 101 ClearMarkbits(Heap::old_pointer_space()); |
102 ClearMarkbits(Heap::old_data_space()); | 102 ClearMarkbits(Heap::old_data_space()); |
103 ClearMarkbits(Heap::cell_space()); | 103 ClearMarkbits(Heap::cell_space()); |
| 104 ClearMarkbits(Heap::map_space()); |
| 105 ClearMarkbits(Heap::code_space()); |
104 } | 106 } |
105 | 107 |
106 | 108 |
107 #ifdef DEBUG | 109 #ifdef DEBUG |
108 static void VerifyMarkbitsAreClean(PagedSpace* space) { | 110 static void VerifyMarkbitsAreClean(PagedSpace* space) { |
109 PageIterator it(space, PageIterator::PAGES_IN_USE); | 111 PageIterator it(space); |
110 | 112 |
111 while (it.has_next()) { | 113 while (it.has_next()) { |
112 Page* p = it.next(); | 114 Page* p = it.next(); |
113 ASSERT(p->markbits()->IsClean()); | 115 ASSERT(p->markbits()->IsClean()); |
114 } | 116 } |
115 } | 117 } |
116 | 118 |
117 static void VerifyMarkbitsAreClean() { | 119 static void VerifyMarkbitsAreClean() { |
118 VerifyMarkbitsAreClean(Heap::old_pointer_space()); | 120 VerifyMarkbitsAreClean(Heap::old_pointer_space()); |
119 VerifyMarkbitsAreClean(Heap::old_data_space()); | 121 VerifyMarkbitsAreClean(Heap::old_data_space()); |
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279 static_cast<int>(end - start)); | 281 static_cast<int>(end - start)); |
280 } | 282 } |
281 allocated = 0; | 283 allocated = 0; |
282 if (marking_stack_.is_empty()) MarkingComplete(); | 284 if (marking_stack_.is_empty()) MarkingComplete(); |
283 } | 285 } |
284 } | 286 } |
285 } | 287 } |
286 | 288 |
287 | 289 |
288 } } // namespace v8::internal | 290 } } // namespace v8::internal |
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