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Side by Side Diff: third_party/WebKit/Source/platform/heap/HeapPage.cpp

Issue 1840103004: Introduce ThreadHeapStats (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 8 months ago
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1 /* 1 /*
2 * Copyright (C) 2013 Google Inc. All rights reserved. 2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
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119 ASSERT(!m_firstUnsweptPage); 119 ASSERT(!m_firstUnsweptPage);
120 } 120 }
121 121
122 void BaseArena::cleanupPages() 122 void BaseArena::cleanupPages()
123 { 123 {
124 clearFreeLists(); 124 clearFreeLists();
125 125
126 ASSERT(!m_firstUnsweptPage); 126 ASSERT(!m_firstUnsweptPage);
127 // Add the BaseArena's pages to the orphanedPagePool. 127 // Add the BaseArena's pages to the orphanedPagePool.
128 for (BasePage* page = m_firstPage; page; page = page->next()) { 128 for (BasePage* page = m_firstPage; page; page = page->next()) {
129 Heap::decreaseAllocatedSpace(page->size()); 129 Heap::heapStats().decreaseAllocatedSpace(page->size());
130 Heap::getOrphanedPagePool()->addOrphanedPage(arenaIndex(), page); 130 Heap::getOrphanedPagePool()->addOrphanedPage(arenaIndex(), page);
131 } 131 }
132 m_firstPage = nullptr; 132 m_firstPage = nullptr;
133 } 133 }
134 134
135 void BaseArena::takeSnapshot(const String& dumpBaseName, ThreadState::GCSnapshot Info& info) 135 void BaseArena::takeSnapshot(const String& dumpBaseName, ThreadState::GCSnapshot Info& info)
136 { 136 {
137 // |dumpBaseName| at this point is "blink_gc/thread_X/heaps/HeapName" 137 // |dumpBaseName| at this point is "blink_gc/thread_X/heaps/HeapName"
138 WebMemoryAllocatorDump* allocatorDump = BlinkGCMemoryDumpProvider::instance( )->createMemoryAllocatorDumpForCurrentGC(dumpBaseName); 138 WebMemoryAllocatorDump* allocatorDump = BlinkGCMemoryDumpProvider::instance( )->createMemoryAllocatorDumpForCurrentGC(dumpBaseName);
139 size_t pageCount = 0; 139 size_t pageCount = 0;
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422 pageMemory = memory; 422 pageMemory = memory;
423 } else { 423 } else {
424 Heap::getFreePagePool()->addFreePage(arenaIndex(), memory); 424 Heap::getFreePagePool()->addFreePage(arenaIndex(), memory);
425 } 425 }
426 } 426 }
427 } 427 }
428 428
429 NormalPage* page = new (pageMemory->writableStart()) NormalPage(pageMemory, this); 429 NormalPage* page = new (pageMemory->writableStart()) NormalPage(pageMemory, this);
430 page->link(&m_firstPage); 430 page->link(&m_firstPage);
431 431
432 Heap::increaseAllocatedSpace(page->size()); 432 Heap::heapStats().increaseAllocatedSpace(page->size());
433 #if ENABLE(ASSERT) || defined(LEAK_SANITIZER) || defined(ADDRESS_SANITIZER) 433 #if ENABLE(ASSERT) || defined(LEAK_SANITIZER) || defined(ADDRESS_SANITIZER)
434 // Allow the following addToFreeList() to add the newly allocated memory 434 // Allow the following addToFreeList() to add the newly allocated memory
435 // to the free list. 435 // to the free list.
436 ASAN_UNPOISON_MEMORY_REGION(page->payload(), page->payloadSize()); 436 ASAN_UNPOISON_MEMORY_REGION(page->payload(), page->payloadSize());
437 Address address = page->payload(); 437 Address address = page->payload();
438 for (size_t i = 0; i < page->payloadSize(); i++) 438 for (size_t i = 0; i < page->payloadSize(); i++)
439 address[i] = reuseAllowedZapValue; 439 address[i] = reuseAllowedZapValue;
440 ASAN_POISON_MEMORY_REGION(page->payload(), page->payloadSize()); 440 ASAN_POISON_MEMORY_REGION(page->payload(), page->payloadSize());
441 #endif 441 #endif
442 addToFreeList(page->payload(), page->payloadSize()); 442 addToFreeList(page->payload(), page->payloadSize());
443 } 443 }
444 444
445 void NormalPageArena::freePage(NormalPage* page) 445 void NormalPageArena::freePage(NormalPage* page)
446 { 446 {
447 Heap::decreaseAllocatedSpace(page->size()); 447 Heap::heapStats().decreaseAllocatedSpace(page->size());
448 448
449 if (page->terminating()) { 449 if (page->terminating()) {
450 // The thread is shutting down and this page is being removed as a part 450 // The thread is shutting down and this page is being removed as a part
451 // of the thread local GC. In that case the object could be traced in 451 // of the thread local GC. In that case the object could be traced in
452 // the next global GC if there is a dangling pointer from a live thread 452 // the next global GC if there is a dangling pointer from a live thread
453 // heap to this dead thread heap. To guard against this, we put the 453 // heap to this dead thread heap. To guard against this, we put the
454 // page into the orphaned page pool and zap the page memory. This 454 // page into the orphaned page pool and zap the page memory. This
455 // ensures that tracing the dangling pointer in the next global GC just 455 // ensures that tracing the dangling pointer in the next global GC just
456 // crashes instead of causing use-after-frees. After the next global 456 // crashes instead of causing use-after-frees. After the next global
457 // GC, the orphaned pages are removed. 457 // GC, the orphaned pages are removed.
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810 ASSERT(!(reinterpret_cast<uintptr_t>(result) & allocationMask)); 810 ASSERT(!(reinterpret_cast<uintptr_t>(result) & allocationMask));
811 LargeObjectPage* largeObject = new (largeObjectAddress) LargeObjectPage(page Memory, this, allocationSize); 811 LargeObjectPage* largeObject = new (largeObjectAddress) LargeObjectPage(page Memory, this, allocationSize);
812 ASSERT(header->checkHeader()); 812 ASSERT(header->checkHeader());
813 813
814 // Poison the object header and allocationGranularity bytes after the object 814 // Poison the object header and allocationGranularity bytes after the object
815 ASAN_POISON_MEMORY_REGION(header, sizeof(*header)); 815 ASAN_POISON_MEMORY_REGION(header, sizeof(*header));
816 ASAN_POISON_MEMORY_REGION(largeObject->getAddress() + largeObject->size(), a llocationGranularity); 816 ASAN_POISON_MEMORY_REGION(largeObject->getAddress() + largeObject->size(), a llocationGranularity);
817 817
818 largeObject->link(&m_firstPage); 818 largeObject->link(&m_firstPage);
819 819
820 Heap::increaseAllocatedSpace(largeObject->size()); 820 Heap::heapStats().increaseAllocatedSpace(largeObject->size());
821 getThreadState()->increaseAllocatedObjectSize(largeObject->size()); 821 getThreadState()->increaseAllocatedObjectSize(largeObject->size());
822 return result; 822 return result;
823 } 823 }
824 824
825 void LargeObjectArena::freeLargeObjectPage(LargeObjectPage* object) 825 void LargeObjectArena::freeLargeObjectPage(LargeObjectPage* object)
826 { 826 {
827 ASAN_UNPOISON_MEMORY_REGION(object->payload(), object->payloadSize()); 827 ASAN_UNPOISON_MEMORY_REGION(object->payload(), object->payloadSize());
828 object->heapObjectHeader()->finalize(object->payload(), object->payloadSize( )); 828 object->heapObjectHeader()->finalize(object->payload(), object->payloadSize( ));
829 Heap::decreaseAllocatedSpace(object->size()); 829 Heap::heapStats().decreaseAllocatedSpace(object->size());
830 830
831 // Unpoison the object header and allocationGranularity bytes after the 831 // Unpoison the object header and allocationGranularity bytes after the
832 // object before freeing. 832 // object before freeing.
833 ASAN_UNPOISON_MEMORY_REGION(object->heapObjectHeader(), sizeof(HeapObjectHea der)); 833 ASAN_UNPOISON_MEMORY_REGION(object->heapObjectHeader(), sizeof(HeapObjectHea der));
834 ASAN_UNPOISON_MEMORY_REGION(object->getAddress() + object->size(), allocatio nGranularity); 834 ASAN_UNPOISON_MEMORY_REGION(object->getAddress() + object->size(), allocatio nGranularity);
835 835
836 if (object->terminating()) { 836 if (object->terminating()) {
837 ASSERT(ThreadState::current()->isTerminating()); 837 ASSERT(ThreadState::current()->isTerminating());
838 // The thread is shutting down and this page is being removed as a part 838 // The thread is shutting down and this page is being removed as a part
839 // of the thread local GC. In that case the object could be traced in 839 // of the thread local GC. In that case the object could be traced in
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1561 1561
1562 m_hasEntries = true; 1562 m_hasEntries = true;
1563 size_t index = hash(address); 1563 size_t index = hash(address);
1564 ASSERT(!(index & 1)); 1564 ASSERT(!(index & 1));
1565 Address cachePage = roundToBlinkPageStart(address); 1565 Address cachePage = roundToBlinkPageStart(address);
1566 m_entries[index + 1] = m_entries[index]; 1566 m_entries[index + 1] = m_entries[index];
1567 m_entries[index] = cachePage; 1567 m_entries[index] = cachePage;
1568 } 1568 }
1569 1569
1570 } // namespace blink 1570 } // namespace blink
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