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Issue 94993004: Move heap profiler state flags to HeapProfiler (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years ago
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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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2761 // to encounter pointers to dead new space objects during traversal of pointers 2761 // to encounter pointers to dead new space objects during traversal of pointers
2762 // to new space. We should clear them to avoid encountering them during next 2762 // to new space. We should clear them to avoid encountering them during next
2763 // pointer iteration. This is an issue if the store buffer overflows and we 2763 // pointer iteration. This is an issue if the store buffer overflows and we
2764 // have to scan the entire old space, including dead objects, looking for 2764 // have to scan the entire old space, including dead objects, looking for
2765 // pointers to new space. 2765 // pointers to new space.
2766 void MarkCompactCollector::MigrateObject(Address dst, 2766 void MarkCompactCollector::MigrateObject(Address dst,
2767 Address src, 2767 Address src,
2768 int size, 2768 int size,
2769 AllocationSpace dest) { 2769 AllocationSpace dest) {
2770 HeapProfiler* heap_profiler = heap()->isolate()->heap_profiler(); 2770 HeapProfiler* heap_profiler = heap()->isolate()->heap_profiler();
2771 if (heap_profiler->is_profiling()) { 2771 if (heap_profiler->is_tracking_object_moves()) {
2772 heap_profiler->ObjectMoveEvent(src, dst, size); 2772 heap_profiler->ObjectMoveEvent(src, dst, size);
2773 } 2773 }
2774 ASSERT(heap()->AllowedToBeMigrated(HeapObject::FromAddress(src), dest)); 2774 ASSERT(heap()->AllowedToBeMigrated(HeapObject::FromAddress(src), dest));
2775 ASSERT(dest != LO_SPACE && size <= Page::kMaxNonCodeHeapObjectSize); 2775 ASSERT(dest != LO_SPACE && size <= Page::kMaxNonCodeHeapObjectSize);
2776 if (dest == OLD_POINTER_SPACE) { 2776 if (dest == OLD_POINTER_SPACE) {
2777 Address src_slot = src; 2777 Address src_slot = src;
2778 Address dst_slot = dst; 2778 Address dst_slot = dst;
2779 ASSERT(IsAligned(size, kPointerSize)); 2779 ASSERT(IsAligned(size, kPointerSize));
2780 2780
2781 for (int remaining = size / kPointerSize; remaining > 0; remaining--) { 2781 for (int remaining = size / kPointerSize; remaining > 0; remaining--) {
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4367 while (buffer != NULL) { 4367 while (buffer != NULL) {
4368 SlotsBuffer* next_buffer = buffer->next(); 4368 SlotsBuffer* next_buffer = buffer->next();
4369 DeallocateBuffer(buffer); 4369 DeallocateBuffer(buffer);
4370 buffer = next_buffer; 4370 buffer = next_buffer;
4371 } 4371 }
4372 *buffer_address = NULL; 4372 *buffer_address = NULL;
4373 } 4373 }
4374 4374
4375 4375
4376 } } // namespace v8::internal 4376 } } // namespace v8::internal
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