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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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1406 | 1406 |
1407 | 1407 |
1408 bool Heap::CreateInitialMaps() { | 1408 bool Heap::CreateInitialMaps() { |
1409 Object* obj = AllocatePartialMap(MAP_TYPE, Map::kSize); | 1409 Object* obj = AllocatePartialMap(MAP_TYPE, Map::kSize); |
1410 if (obj->IsFailure()) return false; | 1410 if (obj->IsFailure()) return false; |
1411 // Map::cast cannot be used due to uninitialized map field. | 1411 // Map::cast cannot be used due to uninitialized map field. |
1412 Map* new_meta_map = reinterpret_cast<Map*>(obj); | 1412 Map* new_meta_map = reinterpret_cast<Map*>(obj); |
1413 set_meta_map(new_meta_map); | 1413 set_meta_map(new_meta_map); |
1414 new_meta_map->set_map(new_meta_map); | 1414 new_meta_map->set_map(new_meta_map); |
1415 | 1415 |
1416 obj = AllocatePartialMap(FIXED_ARRAY_TYPE, FixedArray::kHeaderSize); | 1416 obj = AllocatePartialMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel); |
1417 if (obj->IsFailure()) return false; | 1417 if (obj->IsFailure()) return false; |
1418 set_fixed_array_map(Map::cast(obj)); | 1418 set_fixed_array_map(Map::cast(obj)); |
1419 | 1419 |
1420 obj = AllocatePartialMap(ODDBALL_TYPE, Oddball::kSize); | 1420 obj = AllocatePartialMap(ODDBALL_TYPE, Oddball::kSize); |
1421 if (obj->IsFailure()) return false; | 1421 if (obj->IsFailure()) return false; |
1422 set_oddball_map(Map::cast(obj)); | 1422 set_oddball_map(Map::cast(obj)); |
1423 | 1423 |
1424 // Allocate the empty array. | 1424 // Allocate the empty array. |
1425 obj = AllocateEmptyFixedArray(); | 1425 obj = AllocateEmptyFixedArray(); |
1426 if (obj->IsFailure()) return false; | 1426 if (obj->IsFailure()) return false; |
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1448 // Fix prototype object for existing maps. | 1448 // Fix prototype object for existing maps. |
1449 meta_map()->set_prototype(null_value()); | 1449 meta_map()->set_prototype(null_value()); |
1450 meta_map()->set_constructor(null_value()); | 1450 meta_map()->set_constructor(null_value()); |
1451 | 1451 |
1452 fixed_array_map()->set_prototype(null_value()); | 1452 fixed_array_map()->set_prototype(null_value()); |
1453 fixed_array_map()->set_constructor(null_value()); | 1453 fixed_array_map()->set_constructor(null_value()); |
1454 | 1454 |
1455 oddball_map()->set_prototype(null_value()); | 1455 oddball_map()->set_prototype(null_value()); |
1456 oddball_map()->set_constructor(null_value()); | 1456 oddball_map()->set_constructor(null_value()); |
1457 | 1457 |
1458 obj = AllocateMap(FIXED_ARRAY_TYPE, FixedArray::kHeaderSize); | 1458 obj = AllocateMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel); |
1459 if (obj->IsFailure()) return false; | 1459 if (obj->IsFailure()) return false; |
1460 set_fixed_cow_array_map(Map::cast(obj)); | 1460 set_fixed_cow_array_map(Map::cast(obj)); |
1461 ASSERT(fixed_array_map() != fixed_cow_array_map()); | 1461 ASSERT(fixed_array_map() != fixed_cow_array_map()); |
1462 | 1462 |
1463 obj = AllocateMap(HEAP_NUMBER_TYPE, HeapNumber::kSize); | 1463 obj = AllocateMap(HEAP_NUMBER_TYPE, HeapNumber::kSize); |
1464 if (obj->IsFailure()) return false; | 1464 if (obj->IsFailure()) return false; |
1465 set_heap_number_map(Map::cast(obj)); | 1465 set_heap_number_map(Map::cast(obj)); |
1466 | 1466 |
1467 obj = AllocateMap(PROXY_TYPE, Proxy::kSize); | 1467 obj = AllocateMap(PROXY_TYPE, Proxy::kSize); |
1468 if (obj->IsFailure()) return false; | 1468 if (obj->IsFailure()) return false; |
1469 set_proxy_map(Map::cast(obj)); | 1469 set_proxy_map(Map::cast(obj)); |
1470 | 1470 |
1471 for (unsigned i = 0; i < ARRAY_SIZE(string_type_table); i++) { | 1471 for (unsigned i = 0; i < ARRAY_SIZE(string_type_table); i++) { |
1472 const StringTypeTable& entry = string_type_table[i]; | 1472 const StringTypeTable& entry = string_type_table[i]; |
1473 obj = AllocateMap(entry.type, entry.size); | 1473 obj = AllocateMap(entry.type, entry.size); |
1474 if (obj->IsFailure()) return false; | 1474 if (obj->IsFailure()) return false; |
1475 roots_[entry.index] = Map::cast(obj); | 1475 roots_[entry.index] = Map::cast(obj); |
1476 } | 1476 } |
1477 | 1477 |
1478 obj = AllocateMap(STRING_TYPE, SeqTwoByteString::kAlignedSize); | 1478 obj = AllocateMap(STRING_TYPE, kVariableSizeSentinel); |
1479 if (obj->IsFailure()) return false; | 1479 if (obj->IsFailure()) return false; |
1480 set_undetectable_string_map(Map::cast(obj)); | 1480 set_undetectable_string_map(Map::cast(obj)); |
1481 Map::cast(obj)->set_is_undetectable(); | 1481 Map::cast(obj)->set_is_undetectable(); |
1482 | 1482 |
1483 obj = AllocateMap(ASCII_STRING_TYPE, SeqAsciiString::kAlignedSize); | 1483 obj = AllocateMap(ASCII_STRING_TYPE, kVariableSizeSentinel); |
1484 if (obj->IsFailure()) return false; | 1484 if (obj->IsFailure()) return false; |
1485 set_undetectable_ascii_string_map(Map::cast(obj)); | 1485 set_undetectable_ascii_string_map(Map::cast(obj)); |
1486 Map::cast(obj)->set_is_undetectable(); | 1486 Map::cast(obj)->set_is_undetectable(); |
1487 | 1487 |
1488 obj = AllocateMap(BYTE_ARRAY_TYPE, ByteArray::kAlignedSize); | 1488 obj = AllocateMap(BYTE_ARRAY_TYPE, kVariableSizeSentinel); |
1489 if (obj->IsFailure()) return false; | 1489 if (obj->IsFailure()) return false; |
1490 set_byte_array_map(Map::cast(obj)); | 1490 set_byte_array_map(Map::cast(obj)); |
1491 | 1491 |
1492 obj = AllocateMap(PIXEL_ARRAY_TYPE, PixelArray::kAlignedSize); | 1492 obj = AllocateMap(PIXEL_ARRAY_TYPE, PixelArray::kAlignedSize); |
1493 if (obj->IsFailure()) return false; | 1493 if (obj->IsFailure()) return false; |
1494 set_pixel_array_map(Map::cast(obj)); | 1494 set_pixel_array_map(Map::cast(obj)); |
1495 | 1495 |
1496 obj = AllocateMap(EXTERNAL_BYTE_ARRAY_TYPE, | 1496 obj = AllocateMap(EXTERNAL_BYTE_ARRAY_TYPE, |
1497 ExternalArray::kAlignedSize); | 1497 ExternalArray::kAlignedSize); |
1498 if (obj->IsFailure()) return false; | 1498 if (obj->IsFailure()) return false; |
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1521 obj = AllocateMap(EXTERNAL_UNSIGNED_INT_ARRAY_TYPE, | 1521 obj = AllocateMap(EXTERNAL_UNSIGNED_INT_ARRAY_TYPE, |
1522 ExternalArray::kAlignedSize); | 1522 ExternalArray::kAlignedSize); |
1523 if (obj->IsFailure()) return false; | 1523 if (obj->IsFailure()) return false; |
1524 set_external_unsigned_int_array_map(Map::cast(obj)); | 1524 set_external_unsigned_int_array_map(Map::cast(obj)); |
1525 | 1525 |
1526 obj = AllocateMap(EXTERNAL_FLOAT_ARRAY_TYPE, | 1526 obj = AllocateMap(EXTERNAL_FLOAT_ARRAY_TYPE, |
1527 ExternalArray::kAlignedSize); | 1527 ExternalArray::kAlignedSize); |
1528 if (obj->IsFailure()) return false; | 1528 if (obj->IsFailure()) return false; |
1529 set_external_float_array_map(Map::cast(obj)); | 1529 set_external_float_array_map(Map::cast(obj)); |
1530 | 1530 |
1531 obj = AllocateMap(CODE_TYPE, Code::kHeaderSize); | 1531 obj = AllocateMap(CODE_TYPE, kVariableSizeSentinel); |
1532 if (obj->IsFailure()) return false; | 1532 if (obj->IsFailure()) return false; |
1533 set_code_map(Map::cast(obj)); | 1533 set_code_map(Map::cast(obj)); |
1534 | 1534 |
1535 obj = AllocateMap(JS_GLOBAL_PROPERTY_CELL_TYPE, | 1535 obj = AllocateMap(JS_GLOBAL_PROPERTY_CELL_TYPE, |
1536 JSGlobalPropertyCell::kSize); | 1536 JSGlobalPropertyCell::kSize); |
1537 if (obj->IsFailure()) return false; | 1537 if (obj->IsFailure()) return false; |
1538 set_global_property_cell_map(Map::cast(obj)); | 1538 set_global_property_cell_map(Map::cast(obj)); |
1539 | 1539 |
1540 obj = AllocateMap(FILLER_TYPE, kPointerSize); | 1540 obj = AllocateMap(FILLER_TYPE, kPointerSize); |
1541 if (obj->IsFailure()) return false; | 1541 if (obj->IsFailure()) return false; |
1542 set_one_pointer_filler_map(Map::cast(obj)); | 1542 set_one_pointer_filler_map(Map::cast(obj)); |
1543 | 1543 |
1544 obj = AllocateMap(FILLER_TYPE, 2 * kPointerSize); | 1544 obj = AllocateMap(FILLER_TYPE, 2 * kPointerSize); |
1545 if (obj->IsFailure()) return false; | 1545 if (obj->IsFailure()) return false; |
1546 set_two_pointer_filler_map(Map::cast(obj)); | 1546 set_two_pointer_filler_map(Map::cast(obj)); |
1547 | 1547 |
1548 for (unsigned i = 0; i < ARRAY_SIZE(struct_table); i++) { | 1548 for (unsigned i = 0; i < ARRAY_SIZE(struct_table); i++) { |
1549 const StructTable& entry = struct_table[i]; | 1549 const StructTable& entry = struct_table[i]; |
1550 obj = AllocateMap(entry.type, entry.size); | 1550 obj = AllocateMap(entry.type, entry.size); |
1551 if (obj->IsFailure()) return false; | 1551 if (obj->IsFailure()) return false; |
1552 roots_[entry.index] = Map::cast(obj); | 1552 roots_[entry.index] = Map::cast(obj); |
1553 } | 1553 } |
1554 | 1554 |
1555 obj = AllocateMap(FIXED_ARRAY_TYPE, HeapObject::kHeaderSize); | 1555 obj = AllocateMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel); |
1556 if (obj->IsFailure()) return false; | 1556 if (obj->IsFailure()) return false; |
1557 set_hash_table_map(Map::cast(obj)); | 1557 set_hash_table_map(Map::cast(obj)); |
1558 | 1558 |
1559 obj = AllocateMap(FIXED_ARRAY_TYPE, HeapObject::kHeaderSize); | 1559 obj = AllocateMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel); |
1560 if (obj->IsFailure()) return false; | 1560 if (obj->IsFailure()) return false; |
1561 set_context_map(Map::cast(obj)); | 1561 set_context_map(Map::cast(obj)); |
1562 | 1562 |
1563 obj = AllocateMap(FIXED_ARRAY_TYPE, HeapObject::kHeaderSize); | 1563 obj = AllocateMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel); |
1564 if (obj->IsFailure()) return false; | 1564 if (obj->IsFailure()) return false; |
1565 set_catch_context_map(Map::cast(obj)); | 1565 set_catch_context_map(Map::cast(obj)); |
1566 | 1566 |
1567 obj = AllocateMap(FIXED_ARRAY_TYPE, HeapObject::kHeaderSize); | 1567 obj = AllocateMap(FIXED_ARRAY_TYPE, kVariableSizeSentinel); |
1568 if (obj->IsFailure()) return false; | 1568 if (obj->IsFailure()) return false; |
1569 set_global_context_map(Map::cast(obj)); | 1569 set_global_context_map(Map::cast(obj)); |
1570 | 1570 |
1571 obj = AllocateMap(SHARED_FUNCTION_INFO_TYPE, | 1571 obj = AllocateMap(SHARED_FUNCTION_INFO_TYPE, |
1572 SharedFunctionInfo::kAlignedSize); | 1572 SharedFunctionInfo::kAlignedSize); |
1573 if (obj->IsFailure()) return false; | 1573 if (obj->IsFailure()) return false; |
1574 set_shared_function_info_map(Map::cast(obj)); | 1574 set_shared_function_info_map(Map::cast(obj)); |
1575 | 1575 |
1576 ASSERT(!Heap::InNewSpace(Heap::empty_fixed_array())); | 1576 ASSERT(!Heap::InNewSpace(Heap::empty_fixed_array())); |
1577 return true; | 1577 return true; |
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4859 void ExternalStringTable::TearDown() { | 4859 void ExternalStringTable::TearDown() { |
4860 new_space_strings_.Free(); | 4860 new_space_strings_.Free(); |
4861 old_space_strings_.Free(); | 4861 old_space_strings_.Free(); |
4862 } | 4862 } |
4863 | 4863 |
4864 | 4864 |
4865 List<Object*> ExternalStringTable::new_space_strings_; | 4865 List<Object*> ExternalStringTable::new_space_strings_; |
4866 List<Object*> ExternalStringTable::old_space_strings_; | 4866 List<Object*> ExternalStringTable::old_space_strings_; |
4867 | 4867 |
4868 } } // namespace v8::internal | 4868 } } // namespace v8::internal |
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