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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "src/heap/heap.h" | 5 #include "src/heap/heap.h" |
| 6 | 6 |
| 7 #include "src/accessors.h" | 7 #include "src/accessors.h" |
| 8 #include "src/api.h" | 8 #include "src/api.h" |
| 9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
| 10 #include "src/base/once.h" | 10 #include "src/base/once.h" |
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| 2917 #undef ALLOCATE_MAP | 2917 #undef ALLOCATE_MAP |
| 2918 } | 2918 } |
| 2919 | 2919 |
| 2920 { // Empty arrays | 2920 { // Empty arrays |
| 2921 { | 2921 { |
| 2922 ByteArray* byte_array; | 2922 ByteArray* byte_array; |
| 2923 if (!AllocateByteArray(0, TENURED).To(&byte_array)) return false; | 2923 if (!AllocateByteArray(0, TENURED).To(&byte_array)) return false; |
| 2924 set_empty_byte_array(byte_array); | 2924 set_empty_byte_array(byte_array); |
| 2925 | 2925 |
| 2926 BytecodeArray* bytecode_array; | 2926 BytecodeArray* bytecode_array; |
| 2927 AllocationResult allocation = AllocateBytecodeArray(0, nullptr, 0, 0); | 2927 AllocationResult allocation = |
| 2928 AllocateBytecodeArray(0, nullptr, 0, 0, empty_fixed_array()); |
| 2928 if (!allocation.To(&bytecode_array)) { | 2929 if (!allocation.To(&bytecode_array)) { |
| 2929 return false; | 2930 return false; |
| 2930 } | 2931 } |
| 2931 set_empty_bytecode_array(bytecode_array); | 2932 set_empty_bytecode_array(bytecode_array); |
| 2932 } | 2933 } |
| 2933 | 2934 |
| 2934 #define ALLOCATE_EMPTY_FIXED_TYPED_ARRAY(Type, type, TYPE, ctype, size) \ | 2935 #define ALLOCATE_EMPTY_FIXED_TYPED_ARRAY(Type, type, TYPE, ctype, size) \ |
| 2935 { \ | 2936 { \ |
| 2936 FixedTypedArrayBase* obj; \ | 2937 FixedTypedArrayBase* obj; \ |
| 2937 if (!AllocateEmptyFixedTypedArray(kExternal##Type##Array).To(&obj)) \ | 2938 if (!AllocateEmptyFixedTypedArray(kExternal##Type##Array).To(&obj)) \ |
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| 3517 | 3518 |
| 3518 result->set_map_no_write_barrier(byte_array_map()); | 3519 result->set_map_no_write_barrier(byte_array_map()); |
| 3519 ByteArray::cast(result)->set_length(length); | 3520 ByteArray::cast(result)->set_length(length); |
| 3520 return result; | 3521 return result; |
| 3521 } | 3522 } |
| 3522 | 3523 |
| 3523 | 3524 |
| 3524 AllocationResult Heap::AllocateBytecodeArray(int length, | 3525 AllocationResult Heap::AllocateBytecodeArray(int length, |
| 3525 const byte* const raw_bytecodes, | 3526 const byte* const raw_bytecodes, |
| 3526 int frame_size, | 3527 int frame_size, |
| 3527 int parameter_count) { | 3528 int parameter_count, |
| 3529 FixedArray* constant_pool) { |
| 3528 if (length < 0 || length > BytecodeArray::kMaxLength) { | 3530 if (length < 0 || length > BytecodeArray::kMaxLength) { |
| 3529 v8::internal::Heap::FatalProcessOutOfMemory("invalid array length", true); | 3531 v8::internal::Heap::FatalProcessOutOfMemory("invalid array length", true); |
| 3530 } | 3532 } |
| 3533 // Bytecode array is pretenured, so constant pool array should be to. |
| 3534 DCHECK(!InNewSpace(constant_pool)); |
| 3531 | 3535 |
| 3532 int size = BytecodeArray::SizeFor(length); | 3536 int size = BytecodeArray::SizeFor(length); |
| 3533 HeapObject* result; | 3537 HeapObject* result; |
| 3534 { | 3538 { |
| 3535 AllocationResult allocation = AllocateRaw(size, OLD_SPACE, OLD_SPACE); | 3539 AllocationResult allocation = AllocateRaw(size, OLD_SPACE, OLD_SPACE); |
| 3536 if (!allocation.To(&result)) return allocation; | 3540 if (!allocation.To(&result)) return allocation; |
| 3537 } | 3541 } |
| 3538 | 3542 |
| 3539 result->set_map_no_write_barrier(bytecode_array_map()); | 3543 result->set_map_no_write_barrier(bytecode_array_map()); |
| 3540 BytecodeArray* instance = BytecodeArray::cast(result); | 3544 BytecodeArray* instance = BytecodeArray::cast(result); |
| 3541 instance->set_length(length); | 3545 instance->set_length(length); |
| 3542 instance->set_frame_size(frame_size); | 3546 instance->set_frame_size(frame_size); |
| 3543 instance->set_parameter_count(parameter_count); | 3547 instance->set_parameter_count(parameter_count); |
| 3548 instance->set_constant_pool(constant_pool); |
| 3544 CopyBytes(instance->GetFirstBytecodeAddress(), raw_bytecodes, length); | 3549 CopyBytes(instance->GetFirstBytecodeAddress(), raw_bytecodes, length); |
| 3545 | 3550 |
| 3546 return result; | 3551 return result; |
| 3547 } | 3552 } |
| 3548 | 3553 |
| 3549 | 3554 |
| 3550 void Heap::CreateFillerObjectAt(Address addr, int size) { | 3555 void Heap::CreateFillerObjectAt(Address addr, int size) { |
| 3551 if (size == 0) return; | 3556 if (size == 0) return; |
| 3552 HeapObject* filler = HeapObject::FromAddress(addr); | 3557 HeapObject* filler = HeapObject::FromAddress(addr); |
| 3553 if (size == kPointerSize) { | 3558 if (size == kPointerSize) { |
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| 6783 *object_type = "CODE_TYPE"; \ | 6788 *object_type = "CODE_TYPE"; \ |
| 6784 *object_sub_type = "CODE_AGE/" #name; \ | 6789 *object_sub_type = "CODE_AGE/" #name; \ |
| 6785 return true; | 6790 return true; |
| 6786 CODE_AGE_LIST_COMPLETE(COMPARE_AND_RETURN_NAME) | 6791 CODE_AGE_LIST_COMPLETE(COMPARE_AND_RETURN_NAME) |
| 6787 #undef COMPARE_AND_RETURN_NAME | 6792 #undef COMPARE_AND_RETURN_NAME |
| 6788 } | 6793 } |
| 6789 return false; | 6794 return false; |
| 6790 } | 6795 } |
| 6791 } // namespace internal | 6796 } // namespace internal |
| 6792 } // namespace v8 | 6797 } // namespace v8 |
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