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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/base/atomicops.h" | 7 #include "src/base/atomicops.h" |
8 #include "src/base/bits.h" | 8 #include "src/base/bits.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/compilation-cache.h" | 10 #include "src/compilation-cache.h" |
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2217 if (marking_deque_memory_committed_) { | 2217 if (marking_deque_memory_committed_) { |
2218 bool success = marking_deque_memory_->Uncommit( | 2218 bool success = marking_deque_memory_->Uncommit( |
2219 reinterpret_cast<Address>(marking_deque_memory_->address()), | 2219 reinterpret_cast<Address>(marking_deque_memory_->address()), |
2220 marking_deque_memory_->size()); | 2220 marking_deque_memory_->size()); |
2221 CHECK(success); | 2221 CHECK(success); |
2222 marking_deque_memory_committed_ = false; | 2222 marking_deque_memory_committed_ = false; |
2223 } | 2223 } |
2224 } | 2224 } |
2225 | 2225 |
2226 | 2226 |
2227 void MarkCompactCollector::OverApproximateWeakClosure() { | |
2228 GCTracer::Scope gc_scope(heap()->tracer(), | |
2229 GCTracer::Scope::MC_INCREMENTAL_WEAKCLOSURE); | |
2230 | |
2231 RootMarkingVisitor root_visitor(heap()); | |
2232 isolate()->global_handles()->IterateObjectGroups( | |
2233 &root_visitor, &IsUnmarkedHeapObjectWithHeap); | |
2234 MarkImplicitRefGroups(); | |
2235 | |
2236 // Remove object groups after marking phase. | |
2237 heap()->isolate()->global_handles()->RemoveObjectGroups(); | |
2238 heap()->isolate()->global_handles()->RemoveImplicitRefGroups(); | |
2239 } | |
2240 | |
2241 | |
2242 void MarkCompactCollector::MarkLiveObjects() { | 2227 void MarkCompactCollector::MarkLiveObjects() { |
2243 GCTracer::Scope gc_scope(heap()->tracer(), GCTracer::Scope::MC_MARK); | 2228 GCTracer::Scope gc_scope(heap()->tracer(), GCTracer::Scope::MC_MARK); |
2244 double start_time = 0.0; | 2229 double start_time = 0.0; |
2245 if (FLAG_print_cumulative_gc_stat) { | 2230 if (FLAG_print_cumulative_gc_stat) { |
2246 start_time = base::OS::TimeCurrentMillis(); | 2231 start_time = base::OS::TimeCurrentMillis(); |
2247 } | 2232 } |
2248 // The recursive GC marker detects when it is nearing stack overflow, | 2233 // The recursive GC marker detects when it is nearing stack overflow, |
2249 // and switches to a different marking system. JS interrupts interfere | 2234 // and switches to a different marking system. JS interrupts interfere |
2250 // with the C stack limit check. | 2235 // with the C stack limit check. |
2251 PostponeInterruptsScope postpone(isolate()); | 2236 PostponeInterruptsScope postpone(isolate()); |
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4656 SlotsBuffer* buffer = *buffer_address; | 4641 SlotsBuffer* buffer = *buffer_address; |
4657 while (buffer != NULL) { | 4642 while (buffer != NULL) { |
4658 SlotsBuffer* next_buffer = buffer->next(); | 4643 SlotsBuffer* next_buffer = buffer->next(); |
4659 DeallocateBuffer(buffer); | 4644 DeallocateBuffer(buffer); |
4660 buffer = next_buffer; | 4645 buffer = next_buffer; |
4661 } | 4646 } |
4662 *buffer_address = NULL; | 4647 *buffer_address = NULL; |
4663 } | 4648 } |
4664 } | 4649 } |
4665 } // namespace v8::internal | 4650 } // namespace v8::internal |
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