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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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332 number_of_pages, | 332 number_of_pages, |
333 static_cast<int>(free), | 333 static_cast<int>(free), |
334 static_cast<double>(free) * 100 / reserved); | 334 static_cast<double>(free) * 100 / reserved); |
335 } | 335 } |
336 | 336 |
337 | 337 |
338 bool MarkCompactCollector::StartCompaction(CompactionMode mode) { | 338 bool MarkCompactCollector::StartCompaction(CompactionMode mode) { |
339 if (!compacting_) { | 339 if (!compacting_) { |
340 ASSERT(evacuation_candidates_.length() == 0); | 340 ASSERT(evacuation_candidates_.length() == 0); |
341 | 341 |
| 342 #ifdef ENABLE_GDB_JIT_INTERFACE |
| 343 // If GDBJIT interface is active disable compaction. |
| 344 if (FLAG_gdbjit) return false; |
| 345 #endif |
| 346 |
342 CollectEvacuationCandidates(heap()->old_pointer_space()); | 347 CollectEvacuationCandidates(heap()->old_pointer_space()); |
343 CollectEvacuationCandidates(heap()->old_data_space()); | 348 CollectEvacuationCandidates(heap()->old_data_space()); |
344 | 349 |
345 if (FLAG_compact_code_space && | 350 if (FLAG_compact_code_space && |
346 (mode == NON_INCREMENTAL_COMPACTION || | 351 (mode == NON_INCREMENTAL_COMPACTION || |
347 FLAG_incremental_code_compaction)) { | 352 FLAG_incremental_code_compaction)) { |
348 CollectEvacuationCandidates(heap()->code_space()); | 353 CollectEvacuationCandidates(heap()->code_space()); |
349 } else if (FLAG_trace_fragmentation) { | 354 } else if (FLAG_trace_fragmentation) { |
350 TraceFragmentation(heap()->code_space()); | 355 TraceFragmentation(heap()->code_space()); |
351 } | 356 } |
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771 // variable. | 776 // variable. |
772 tracer_ = tracer; | 777 tracer_ = tracer; |
773 | 778 |
774 #ifdef DEBUG | 779 #ifdef DEBUG |
775 ASSERT(state_ == IDLE); | 780 ASSERT(state_ == IDLE); |
776 state_ = PREPARE_GC; | 781 state_ = PREPARE_GC; |
777 #endif | 782 #endif |
778 | 783 |
779 ASSERT(!FLAG_never_compact || !FLAG_always_compact); | 784 ASSERT(!FLAG_never_compact || !FLAG_always_compact); |
780 | 785 |
781 #ifdef ENABLE_GDB_JIT_INTERFACE | |
782 if (FLAG_gdbjit) { | |
783 // If GDBJIT interface is active disable compaction. | |
784 compacting_collection_ = false; | |
785 } | |
786 #endif | |
787 | |
788 // Clear marking bits if incremental marking is aborted. | 786 // Clear marking bits if incremental marking is aborted. |
789 if (was_marked_incrementally_ && abort_incremental_marking_) { | 787 if (was_marked_incrementally_ && abort_incremental_marking_) { |
790 heap()->incremental_marking()->Abort(); | 788 heap()->incremental_marking()->Abort(); |
791 ClearMarkbits(); | 789 ClearMarkbits(); |
792 AbortCompaction(); | 790 AbortCompaction(); |
793 was_marked_incrementally_ = false; | 791 was_marked_incrementally_ = false; |
794 } | 792 } |
795 | 793 |
796 // Don't start compaction if we are in the middle of incremental | 794 // Don't start compaction if we are in the middle of incremental |
797 // marking cycle. We did not collect any slots. | 795 // marking cycle. We did not collect any slots. |
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4141 while (buffer != NULL) { | 4139 while (buffer != NULL) { |
4142 SlotsBuffer* next_buffer = buffer->next(); | 4140 SlotsBuffer* next_buffer = buffer->next(); |
4143 DeallocateBuffer(buffer); | 4141 DeallocateBuffer(buffer); |
4144 buffer = next_buffer; | 4142 buffer = next_buffer; |
4145 } | 4143 } |
4146 *buffer_address = NULL; | 4144 *buffer_address = NULL; |
4147 } | 4145 } |
4148 | 4146 |
4149 | 4147 |
4150 } } // namespace v8::internal | 4148 } } // namespace v8::internal |
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