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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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1658 if (frame->is_optimized()) { | 1658 if (frame->is_optimized()) { |
1659 MarkInlinedFunctionsCode(frame->LookupCode()); | 1659 MarkInlinedFunctionsCode(frame->LookupCode()); |
1660 } | 1660 } |
1661 } | 1661 } |
1662 } | 1662 } |
1663 | 1663 |
1664 | 1664 |
1665 void MarkCompactCollector::PrepareForCodeFlushing() { | 1665 void MarkCompactCollector::PrepareForCodeFlushing() { |
1666 ASSERT(heap() == Isolate::Current()->heap()); | 1666 ASSERT(heap() == Isolate::Current()->heap()); |
1667 | 1667 |
1668 // TODO(1609) Currently incremental marker does not support code flushing. | |
1669 if (!FLAG_flush_code || was_marked_incrementally_) { | |
1670 EnableCodeFlushing(false); | |
1671 return; | |
1672 } | |
1673 | |
1674 #ifdef ENABLE_DEBUGGER_SUPPORT | 1668 #ifdef ENABLE_DEBUGGER_SUPPORT |
1675 if (heap()->isolate()->debug()->IsLoaded() || | 1669 if (heap()->isolate()->debug()->IsLoaded() || |
1676 heap()->isolate()->debug()->has_break_points()) { | 1670 heap()->isolate()->debug()->has_break_points()) { |
1677 EnableCodeFlushing(false); | 1671 EnableCodeFlushing(false); |
1678 return; | 1672 return; |
1679 } | 1673 } |
1680 #endif | 1674 #endif |
1681 | 1675 |
1682 EnableCodeFlushing(true); | 1676 EnableCodeFlushing(true); |
1683 | 1677 |
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1968 if (marking_deque->IsFull()) return; | 1962 if (marking_deque->IsFull()) return; |
1969 } | 1963 } |
1970 } | 1964 } |
1971 } | 1965 } |
1972 | 1966 |
1973 | 1967 |
1974 static inline int MarkWordToObjectStarts(uint32_t mark_bits, int* starts); | 1968 static inline int MarkWordToObjectStarts(uint32_t mark_bits, int* starts); |
1975 | 1969 |
1976 | 1970 |
1977 static void DiscoverGreyObjectsOnPage(MarkingDeque* marking_deque, Page* p) { | 1971 static void DiscoverGreyObjectsOnPage(MarkingDeque* marking_deque, Page* p) { |
| 1972 ASSERT(!marking_deque->IsFull()); |
1978 ASSERT(strcmp(Marking::kWhiteBitPattern, "00") == 0); | 1973 ASSERT(strcmp(Marking::kWhiteBitPattern, "00") == 0); |
1979 ASSERT(strcmp(Marking::kBlackBitPattern, "10") == 0); | 1974 ASSERT(strcmp(Marking::kBlackBitPattern, "10") == 0); |
1980 ASSERT(strcmp(Marking::kGreyBitPattern, "11") == 0); | 1975 ASSERT(strcmp(Marking::kGreyBitPattern, "11") == 0); |
1981 ASSERT(strcmp(Marking::kImpossibleBitPattern, "01") == 0); | 1976 ASSERT(strcmp(Marking::kImpossibleBitPattern, "01") == 0); |
1982 | 1977 |
1983 MarkBit::CellType* cells = p->markbits()->cells(); | 1978 MarkBit::CellType* cells = p->markbits()->cells(); |
1984 | 1979 |
1985 int last_cell_index = | 1980 int last_cell_index = |
1986 Bitmap::IndexToCell( | 1981 Bitmap::IndexToCell( |
1987 Bitmap::CellAlignIndex( | 1982 Bitmap::CellAlignIndex( |
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4141 while (buffer != NULL) { | 4136 while (buffer != NULL) { |
4142 SlotsBuffer* next_buffer = buffer->next(); | 4137 SlotsBuffer* next_buffer = buffer->next(); |
4143 DeallocateBuffer(buffer); | 4138 DeallocateBuffer(buffer); |
4144 buffer = next_buffer; | 4139 buffer = next_buffer; |
4145 } | 4140 } |
4146 *buffer_address = NULL; | 4141 *buffer_address = NULL; |
4147 } | 4142 } |
4148 | 4143 |
4149 | 4144 |
4150 } } // namespace v8::internal | 4145 } } // namespace v8::internal |
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