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Issue 214051: Pushed 1.3.12 to trunk. (Closed) Base URL: http://v8.googlecode.com/svn/trunk/
Patch Set: Created 11 years, 3 months ago
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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 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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820 // Perform space-specific object verification. 820 // Perform space-specific object verification.
821 VerifyObject(object); 821 VerifyObject(object);
822 822
823 // The object itself should look OK. 823 // The object itself should look OK.
824 object->Verify(); 824 object->Verify();
825 825
826 // All the interior pointers should be contained in the heap and 826 // All the interior pointers should be contained in the heap and
827 // have their remembered set bits set if required as determined 827 // have their remembered set bits set if required as determined
828 // by the visitor. 828 // by the visitor.
829 int size = object->Size(); 829 int size = object->Size();
830 if (object->IsCode()) { 830 object->IterateBody(map->instance_type(), size, visitor);
831 Code::cast(object)->ConvertICTargetsFromAddressToObject();
832 object->IterateBody(map->instance_type(), size, visitor);
833 Code::cast(object)->ConvertICTargetsFromObjectToAddress();
834 } else {
835 object->IterateBody(map->instance_type(), size, visitor);
836 }
837 831
838 current += size; 832 current += size;
839 } 833 }
840 834
841 // The allocation pointer should not be in the middle of an object. 835 // The allocation pointer should not be in the middle of an object.
842 ASSERT(current == top); 836 ASSERT(current == top);
843 } 837 }
844 838
845 current_page = current_page->next_page(); 839 current_page = current_page->next_page();
846 } 840 }
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1899 PageIterator page_it(this, PageIterator::PAGES_IN_USE); 1893 PageIterator page_it(this, PageIterator::PAGES_IN_USE);
1900 while (page_it.has_next()) { 1894 while (page_it.has_next()) {
1901 Page* p = page_it.next(); 1895 Page* p = page_it.next();
1902 1896
1903 for (Address rset_addr = p->RSetStart(); 1897 for (Address rset_addr = p->RSetStart();
1904 rset_addr < p->RSetEnd(); 1898 rset_addr < p->RSetEnd();
1905 rset_addr += kIntSize) { 1899 rset_addr += kIntSize) {
1906 int rset = Memory::int_at(rset_addr); 1900 int rset = Memory::int_at(rset_addr);
1907 if (rset != 0) { 1901 if (rset != 0) {
1908 // Bits were set 1902 // Bits were set
1909 int intoff = rset_addr - p->address(); 1903 int intoff = rset_addr - p->address() - Page::kRSetOffset;
1910 int bitoff = 0; 1904 int bitoff = 0;
1911 for (; bitoff < kBitsPerInt; ++bitoff) { 1905 for (; bitoff < kBitsPerInt; ++bitoff) {
1912 if ((rset & (1 << bitoff)) != 0) { 1906 if ((rset & (1 << bitoff)) != 0) {
1913 int bitpos = intoff*kBitsPerByte + bitoff; 1907 int bitpos = intoff*kBitsPerByte + bitoff;
1914 Address slot = p->OffsetToAddress(bitpos << kObjectAlignmentBits); 1908 Address slot = p->OffsetToAddress(bitpos << kObjectAlignmentBits);
1915 Object** obj = reinterpret_cast<Object**>(slot); 1909 Object** obj = reinterpret_cast<Object**>(slot);
1916 if (*obj == Heap::raw_unchecked_fixed_array_map()) { 1910 if (*obj == Heap::raw_unchecked_fixed_array_map()) {
1917 rset_marked_arrays++; 1911 rset_marked_arrays++;
1918 FixedArray* fa = FixedArray::cast(HeapObject::FromAddress(slot)); 1912 FixedArray* fa = FixedArray::cast(HeapObject::FromAddress(slot));
1919 1913
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2164 PageIterator page_it(this, PageIterator::PAGES_IN_USE); 2158 PageIterator page_it(this, PageIterator::PAGES_IN_USE);
2165 while (page_it.has_next()) { 2159 while (page_it.has_next()) {
2166 Page* p = page_it.next(); 2160 Page* p = page_it.next();
2167 2161
2168 for (Address rset_addr = p->RSetStart(); 2162 for (Address rset_addr = p->RSetStart();
2169 rset_addr < p->RSetEnd(); 2163 rset_addr < p->RSetEnd();
2170 rset_addr += kIntSize) { 2164 rset_addr += kIntSize) {
2171 int rset = Memory::int_at(rset_addr); 2165 int rset = Memory::int_at(rset_addr);
2172 if (rset != 0) { 2166 if (rset != 0) {
2173 // Bits were set 2167 // Bits were set
2174 int intoff = rset_addr - p->address(); 2168 int intoff = rset_addr - p->address() - Page::kRSetOffset;
2175 int bitoff = 0; 2169 int bitoff = 0;
2176 for (; bitoff < kBitsPerInt; ++bitoff) { 2170 for (; bitoff < kBitsPerInt; ++bitoff) {
2177 if ((rset & (1 << bitoff)) != 0) { 2171 if ((rset & (1 << bitoff)) != 0) {
2178 int bitpos = intoff*kBitsPerByte + bitoff; 2172 int bitpos = intoff*kBitsPerByte + bitoff;
2179 Address slot = p->OffsetToAddress(bitpos << kObjectAlignmentBits); 2173 Address slot = p->OffsetToAddress(bitpos << kObjectAlignmentBits);
2180 Object** obj = reinterpret_cast<Object**>(slot); 2174 Object** obj = reinterpret_cast<Object**>(slot);
2181 rset_marked_pointers++; 2175 rset_marked_pointers++;
2182 if (Heap::InNewSpace(*obj)) 2176 if (Heap::InNewSpace(*obj))
2183 cross_gen_pointers++; 2177 cross_gen_pointers++;
2184 } 2178 }
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2567 ASSERT(object->IsCode() || object->IsSeqString() || 2561 ASSERT(object->IsCode() || object->IsSeqString() ||
2568 object->IsExternalString() || object->IsFixedArray() || 2562 object->IsExternalString() || object->IsFixedArray() ||
2569 object->IsByteArray()); 2563 object->IsByteArray());
2570 2564
2571 // The object itself should look OK. 2565 // The object itself should look OK.
2572 object->Verify(); 2566 object->Verify();
2573 2567
2574 // Byte arrays and strings don't have interior pointers. 2568 // Byte arrays and strings don't have interior pointers.
2575 if (object->IsCode()) { 2569 if (object->IsCode()) {
2576 VerifyPointersVisitor code_visitor; 2570 VerifyPointersVisitor code_visitor;
2577 Code::cast(object)->ConvertICTargetsFromAddressToObject();
2578 object->IterateBody(map->instance_type(), 2571 object->IterateBody(map->instance_type(),
2579 object->Size(), 2572 object->Size(),
2580 &code_visitor); 2573 &code_visitor);
2581 Code::cast(object)->ConvertICTargetsFromObjectToAddress();
2582 } else if (object->IsFixedArray()) { 2574 } else if (object->IsFixedArray()) {
2583 // We loop over fixed arrays ourselves, rather then using the visitor, 2575 // We loop over fixed arrays ourselves, rather then using the visitor,
2584 // because the visitor doesn't support the start/offset iteration 2576 // because the visitor doesn't support the start/offset iteration
2585 // needed for IsRSetSet. 2577 // needed for IsRSetSet.
2586 FixedArray* array = FixedArray::cast(object); 2578 FixedArray* array = FixedArray::cast(object);
2587 for (int j = 0; j < array->length(); j++) { 2579 for (int j = 0; j < array->length(); j++) {
2588 Object* element = array->get(j); 2580 Object* element = array->get(j);
2589 if (element->IsHeapObject()) { 2581 if (element->IsHeapObject()) {
2590 HeapObject* element_object = HeapObject::cast(element); 2582 HeapObject* element_object = HeapObject::cast(element);
2591 ASSERT(Heap::Contains(element_object)); 2583 ASSERT(Heap::Contains(element_object));
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2658 reinterpret_cast<Object**>(object->address() 2650 reinterpret_cast<Object**>(object->address()
2659 + Page::kObjectAreaSize), 2651 + Page::kObjectAreaSize),
2660 allocation_top); 2652 allocation_top);
2661 PrintF("\n"); 2653 PrintF("\n");
2662 } 2654 }
2663 } 2655 }
2664 } 2656 }
2665 #endif // DEBUG 2657 #endif // DEBUG
2666 2658
2667 } } // namespace v8::internal 2659 } } // namespace v8::internal
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