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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 // 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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1340 | 1340 |
1341 if (logging_and_profiling_mode == LOGGING_AND_PROFILING_ENABLED) { | 1341 if (logging_and_profiling_mode == LOGGING_AND_PROFILING_ENABLED) { |
1342 #if defined(DEBUG) || defined(ENABLE_LOGGING_AND_PROFILING) | 1342 #if defined(DEBUG) || defined(ENABLE_LOGGING_AND_PROFILING) |
1343 // Update NewSpace stats if necessary. | 1343 // Update NewSpace stats if necessary. |
1344 RecordCopiedObject(heap, target); | 1344 RecordCopiedObject(heap, target); |
1345 #endif | 1345 #endif |
1346 HEAP_PROFILE(heap, ObjectMoveEvent(source->address(), target->address())); | 1346 HEAP_PROFILE(heap, ObjectMoveEvent(source->address(), target->address())); |
1347 #if defined(ENABLE_LOGGING_AND_PROFILING) | 1347 #if defined(ENABLE_LOGGING_AND_PROFILING) |
1348 Isolate* isolate = heap->isolate(); | 1348 Isolate* isolate = heap->isolate(); |
1349 if (isolate->logger()->is_logging() || | 1349 if (isolate->logger()->is_logging() || |
1350 isolate->cpu_profiler()->is_profiling()) { | 1350 CpuProfiler::is_profiling(isolate)) { |
1351 if (target->IsSharedFunctionInfo()) { | 1351 if (target->IsSharedFunctionInfo()) { |
1352 PROFILE(isolate, SharedFunctionInfoMoveEvent( | 1352 PROFILE(isolate, SharedFunctionInfoMoveEvent( |
1353 source->address(), target->address())); | 1353 source->address(), target->address())); |
1354 } | 1354 } |
1355 } | 1355 } |
1356 #endif | 1356 #endif |
1357 } | 1357 } |
1358 | 1358 |
1359 return target; | 1359 return target; |
1360 } | 1360 } |
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1515 scavenging_visitors_table_mode_ = LOGGING_AND_PROFILING_DISABLED; | 1515 scavenging_visitors_table_mode_ = LOGGING_AND_PROFILING_DISABLED; |
1516 } | 1516 } |
1517 | 1517 |
1518 | 1518 |
1519 void Heap::SwitchScavengingVisitorsTableIfProfilingWasEnabled() { | 1519 void Heap::SwitchScavengingVisitorsTableIfProfilingWasEnabled() { |
1520 if (scavenging_visitors_table_mode_ == LOGGING_AND_PROFILING_ENABLED) { | 1520 if (scavenging_visitors_table_mode_ == LOGGING_AND_PROFILING_ENABLED) { |
1521 // Table was already updated by some isolate. | 1521 // Table was already updated by some isolate. |
1522 return; | 1522 return; |
1523 } | 1523 } |
1524 | 1524 |
1525 if (isolate()->logger()->is_logging() || | 1525 if (isolate()->logger()->is_logging() | |
1526 isolate()->cpu_profiler()->is_profiling() || | 1526 CpuProfiler::is_profiling(isolate()) || |
1527 (isolate()->heap_profiler() != NULL && | 1527 (isolate()->heap_profiler() != NULL && |
1528 isolate()->heap_profiler()->is_profiling())) { | 1528 isolate()->heap_profiler()->is_profiling())) { |
1529 // If one of the isolates is doing scavenge at this moment of time | 1529 // If one of the isolates is doing scavenge at this moment of time |
1530 // it might see this table in an inconsitent state when | 1530 // it might see this table in an inconsitent state when |
1531 // some of the callbacks point to | 1531 // some of the callbacks point to |
1532 // ScavengingVisitor<LOGGING_AND_PROFILING_ENABLED> and others | 1532 // ScavengingVisitor<LOGGING_AND_PROFILING_ENABLED> and others |
1533 // to ScavengingVisitor<LOGGING_AND_PROFILING_DISABLED>. | 1533 // to ScavengingVisitor<LOGGING_AND_PROFILING_DISABLED>. |
1534 // However this does not lead to any bugs as such isolate does not have | 1534 // However this does not lead to any bugs as such isolate does not have |
1535 // profiling enabled and any isolate with enabled profiling is guaranteed | 1535 // profiling enabled and any isolate with enabled profiling is guaranteed |
1536 // to see the table in the consistent state. | 1536 // to see the table in the consistent state. |
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1587 map->set_instance_type(instance_type); | 1587 map->set_instance_type(instance_type); |
1588 map->set_visitor_id( | 1588 map->set_visitor_id( |
1589 StaticVisitorBase::GetVisitorId(instance_type, instance_size)); | 1589 StaticVisitorBase::GetVisitorId(instance_type, instance_size)); |
1590 map->set_prototype(null_value()); | 1590 map->set_prototype(null_value()); |
1591 map->set_constructor(null_value()); | 1591 map->set_constructor(null_value()); |
1592 map->set_instance_size(instance_size); | 1592 map->set_instance_size(instance_size); |
1593 map->set_inobject_properties(0); | 1593 map->set_inobject_properties(0); |
1594 map->set_pre_allocated_property_fields(0); | 1594 map->set_pre_allocated_property_fields(0); |
1595 map->set_instance_descriptors(empty_descriptor_array()); | 1595 map->set_instance_descriptors(empty_descriptor_array()); |
1596 map->set_code_cache(empty_fixed_array()); | 1596 map->set_code_cache(empty_fixed_array()); |
| 1597 map->set_prototype_transitions(empty_fixed_array()); |
1597 map->set_unused_property_fields(0); | 1598 map->set_unused_property_fields(0); |
1598 map->set_bit_field(0); | 1599 map->set_bit_field(0); |
1599 map->set_bit_field2((1 << Map::kIsExtensible) | (1 << Map::kHasFastElements)); | 1600 map->set_bit_field2((1 << Map::kIsExtensible) | (1 << Map::kHasFastElements)); |
1600 | 1601 |
1601 // If the map object is aligned fill the padding area with Smi 0 objects. | 1602 // If the map object is aligned fill the padding area with Smi 0 objects. |
1602 if (Map::kPadStart < Map::kSize) { | 1603 if (Map::kPadStart < Map::kSize) { |
1603 memset(reinterpret_cast<byte*>(map) + Map::kPadStart - kHeapObjectTag, | 1604 memset(reinterpret_cast<byte*>(map) + Map::kPadStart - kHeapObjectTag, |
1604 0, | 1605 0, |
1605 Map::kSize - Map::kPadStart); | 1606 Map::kSize - Map::kPadStart); |
1606 } | 1607 } |
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1679 | 1680 |
1680 // Allocate the empty descriptor array. | 1681 // Allocate the empty descriptor array. |
1681 { MaybeObject* maybe_obj = AllocateEmptyFixedArray(); | 1682 { MaybeObject* maybe_obj = AllocateEmptyFixedArray(); |
1682 if (!maybe_obj->ToObject(&obj)) return false; | 1683 if (!maybe_obj->ToObject(&obj)) return false; |
1683 } | 1684 } |
1684 set_empty_descriptor_array(DescriptorArray::cast(obj)); | 1685 set_empty_descriptor_array(DescriptorArray::cast(obj)); |
1685 | 1686 |
1686 // Fix the instance_descriptors for the existing maps. | 1687 // Fix the instance_descriptors for the existing maps. |
1687 meta_map()->set_instance_descriptors(empty_descriptor_array()); | 1688 meta_map()->set_instance_descriptors(empty_descriptor_array()); |
1688 meta_map()->set_code_cache(empty_fixed_array()); | 1689 meta_map()->set_code_cache(empty_fixed_array()); |
| 1690 meta_map()->set_prototype_transitions(empty_fixed_array()); |
1689 | 1691 |
1690 fixed_array_map()->set_instance_descriptors(empty_descriptor_array()); | 1692 fixed_array_map()->set_instance_descriptors(empty_descriptor_array()); |
1691 fixed_array_map()->set_code_cache(empty_fixed_array()); | 1693 fixed_array_map()->set_code_cache(empty_fixed_array()); |
| 1694 fixed_array_map()->set_prototype_transitions(empty_fixed_array()); |
1692 | 1695 |
1693 oddball_map()->set_instance_descriptors(empty_descriptor_array()); | 1696 oddball_map()->set_instance_descriptors(empty_descriptor_array()); |
1694 oddball_map()->set_code_cache(empty_fixed_array()); | 1697 oddball_map()->set_code_cache(empty_fixed_array()); |
| 1698 oddball_map()->set_prototype_transitions(empty_fixed_array()); |
1695 | 1699 |
1696 // Fix prototype object for existing maps. | 1700 // Fix prototype object for existing maps. |
1697 meta_map()->set_prototype(null_value()); | 1701 meta_map()->set_prototype(null_value()); |
1698 meta_map()->set_constructor(null_value()); | 1702 meta_map()->set_constructor(null_value()); |
1699 | 1703 |
1700 fixed_array_map()->set_prototype(null_value()); | 1704 fixed_array_map()->set_prototype(null_value()); |
1701 fixed_array_map()->set_constructor(null_value()); | 1705 fixed_array_map()->set_constructor(null_value()); |
1702 | 1706 |
1703 oddball_map()->set_prototype(null_value()); | 1707 oddball_map()->set_prototype(null_value()); |
1704 oddball_map()->set_constructor(null_value()); | 1708 oddball_map()->set_constructor(null_value()); |
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1793 if (!maybe_obj->ToObject(&obj)) return false; | 1797 if (!maybe_obj->ToObject(&obj)) return false; |
1794 } | 1798 } |
1795 set_external_unsigned_int_array_map(Map::cast(obj)); | 1799 set_external_unsigned_int_array_map(Map::cast(obj)); |
1796 | 1800 |
1797 { MaybeObject* maybe_obj = AllocateMap(EXTERNAL_FLOAT_ARRAY_TYPE, | 1801 { MaybeObject* maybe_obj = AllocateMap(EXTERNAL_FLOAT_ARRAY_TYPE, |
1798 ExternalArray::kAlignedSize); | 1802 ExternalArray::kAlignedSize); |
1799 if (!maybe_obj->ToObject(&obj)) return false; | 1803 if (!maybe_obj->ToObject(&obj)) return false; |
1800 } | 1804 } |
1801 set_external_float_array_map(Map::cast(obj)); | 1805 set_external_float_array_map(Map::cast(obj)); |
1802 | 1806 |
| 1807 { MaybeObject* maybe_obj = AllocateMap(EXTERNAL_DOUBLE_ARRAY_TYPE, |
| 1808 ExternalArray::kAlignedSize); |
| 1809 if (!maybe_obj->ToObject(&obj)) return false; |
| 1810 } |
| 1811 set_external_double_array_map(Map::cast(obj)); |
| 1812 |
1803 { MaybeObject* maybe_obj = AllocateMap(CODE_TYPE, kVariableSizeSentinel); | 1813 { MaybeObject* maybe_obj = AllocateMap(CODE_TYPE, kVariableSizeSentinel); |
1804 if (!maybe_obj->ToObject(&obj)) return false; | 1814 if (!maybe_obj->ToObject(&obj)) return false; |
1805 } | 1815 } |
1806 set_code_map(Map::cast(obj)); | 1816 set_code_map(Map::cast(obj)); |
1807 | 1817 |
1808 { MaybeObject* maybe_obj = AllocateMap(JS_GLOBAL_PROPERTY_CELL_TYPE, | 1818 { MaybeObject* maybe_obj = AllocateMap(JS_GLOBAL_PROPERTY_CELL_TYPE, |
1809 JSGlobalPropertyCell::kSize); | 1819 JSGlobalPropertyCell::kSize); |
1810 if (!maybe_obj->ToObject(&obj)) return false; | 1820 if (!maybe_obj->ToObject(&obj)) return false; |
1811 } | 1821 } |
1812 set_global_property_cell_map(Map::cast(obj)); | 1822 set_global_property_cell_map(Map::cast(obj)); |
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2281 case kExternalShortArray: | 2291 case kExternalShortArray: |
2282 return kExternalShortArrayMapRootIndex; | 2292 return kExternalShortArrayMapRootIndex; |
2283 case kExternalUnsignedShortArray: | 2293 case kExternalUnsignedShortArray: |
2284 return kExternalUnsignedShortArrayMapRootIndex; | 2294 return kExternalUnsignedShortArrayMapRootIndex; |
2285 case kExternalIntArray: | 2295 case kExternalIntArray: |
2286 return kExternalIntArrayMapRootIndex; | 2296 return kExternalIntArrayMapRootIndex; |
2287 case kExternalUnsignedIntArray: | 2297 case kExternalUnsignedIntArray: |
2288 return kExternalUnsignedIntArrayMapRootIndex; | 2298 return kExternalUnsignedIntArrayMapRootIndex; |
2289 case kExternalFloatArray: | 2299 case kExternalFloatArray: |
2290 return kExternalFloatArrayMapRootIndex; | 2300 return kExternalFloatArrayMapRootIndex; |
| 2301 case kExternalDoubleArray: |
| 2302 return kExternalDoubleArrayMapRootIndex; |
2291 case kExternalPixelArray: | 2303 case kExternalPixelArray: |
2292 return kExternalPixelArrayMapRootIndex; | 2304 return kExternalPixelArrayMapRootIndex; |
2293 default: | 2305 default: |
2294 UNREACHABLE(); | 2306 UNREACHABLE(); |
2295 return kUndefinedValueRootIndex; | 2307 return kUndefinedValueRootIndex; |
2296 } | 2308 } |
2297 } | 2309 } |
2298 | 2310 |
2299 | 2311 |
2300 MaybeObject* Heap::NumberFromDouble(double value, PretenureFlag pretenure) { | 2312 MaybeObject* Heap::NumberFromDouble(double value, PretenureFlag pretenure) { |
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5847 } | 5859 } |
5848 | 5860 |
5849 | 5861 |
5850 void ExternalStringTable::TearDown() { | 5862 void ExternalStringTable::TearDown() { |
5851 new_space_strings_.Free(); | 5863 new_space_strings_.Free(); |
5852 old_space_strings_.Free(); | 5864 old_space_strings_.Free(); |
5853 } | 5865 } |
5854 | 5866 |
5855 | 5867 |
5856 } } // namespace v8::internal | 5868 } } // namespace v8::internal |
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