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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 // 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 #ifndef V8_HEAP_SPACES_INL_H_ | 5 #ifndef V8_HEAP_SPACES_INL_H_ |
6 #define V8_HEAP_SPACES_INL_H_ | 6 #define V8_HEAP_SPACES_INL_H_ |
7 | 7 |
8 #include "src/heap/incremental-marking.h" | 8 #include "src/heap/incremental-marking.h" |
9 #include "src/heap/spaces.h" | 9 #include "src/heap/spaces.h" |
10 #include "src/isolate.h" | 10 #include "src/isolate.h" |
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587 return AllocateRaw(size_in_bytes, alignment); | 587 return AllocateRaw(size_in_bytes, alignment); |
588 } | 588 } |
589 | 589 |
590 LargePage* LargePage::Initialize(Heap* heap, MemoryChunk* chunk, | 590 LargePage* LargePage::Initialize(Heap* heap, MemoryChunk* chunk, |
591 Executability executable, Space* owner) { | 591 Executability executable, Space* owner) { |
592 if (executable && chunk->size() > LargePage::kMaxCodePageSize) { | 592 if (executable && chunk->size() > LargePage::kMaxCodePageSize) { |
593 STATIC_ASSERT(LargePage::kMaxCodePageSize <= TypedSlotSet::kMaxOffset); | 593 STATIC_ASSERT(LargePage::kMaxCodePageSize <= TypedSlotSet::kMaxOffset); |
594 FATAL("Code page is too large."); | 594 FATAL("Code page is too large."); |
595 } | 595 } |
596 heap->incremental_marking()->SetOldSpacePageFlags(chunk); | 596 heap->incremental_marking()->SetOldSpacePageFlags(chunk); |
| 597 |
| 598 MSAN_ALLOCATED_UNINITIALIZED_MEMORY(chunk->area_start(), chunk->area_size()); |
| 599 |
| 600 // Initialize the owner field for each contained page (except the first, which |
| 601 // is initialized by MemoryChunk::Initialize). |
| 602 for (Address addr = chunk->address() + Page::kPageSize + Page::kOwnerOffset; |
| 603 addr < chunk->area_end(); addr += Page::kPageSize) { |
| 604 // Clear out kPageHeaderTag. |
| 605 Memory::Address_at(addr) = 0; |
| 606 } |
| 607 |
597 return static_cast<LargePage*>(chunk); | 608 return static_cast<LargePage*>(chunk); |
598 } | 609 } |
599 | 610 |
600 size_t LargeObjectSpace::Available() { | 611 size_t LargeObjectSpace::Available() { |
601 return ObjectSizeFor(heap()->memory_allocator()->Available()); | 612 return ObjectSizeFor(heap()->memory_allocator()->Available()); |
602 } | 613 } |
603 | 614 |
604 | 615 |
605 LocalAllocationBuffer LocalAllocationBuffer::InvalidBuffer() { | 616 LocalAllocationBuffer LocalAllocationBuffer::InvalidBuffer() { |
606 return LocalAllocationBuffer(nullptr, AllocationInfo(nullptr, nullptr)); | 617 return LocalAllocationBuffer(nullptr, AllocationInfo(nullptr, nullptr)); |
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626 other->allocation_info_.Reset(nullptr, nullptr); | 637 other->allocation_info_.Reset(nullptr, nullptr); |
627 return true; | 638 return true; |
628 } | 639 } |
629 return false; | 640 return false; |
630 } | 641 } |
631 | 642 |
632 } // namespace internal | 643 } // namespace internal |
633 } // namespace v8 | 644 } // namespace v8 |
634 | 645 |
635 #endif // V8_HEAP_SPACES_INL_H_ | 646 #endif // V8_HEAP_SPACES_INL_H_ |
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