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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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53 #include "arm/regexp-macro-assembler-arm.h" | 53 #include "arm/regexp-macro-assembler-arm.h" |
54 #endif | 54 #endif |
55 #if V8_TARGET_ARCH_MIPS && !V8_INTERPRETED_REGEXP | 55 #if V8_TARGET_ARCH_MIPS && !V8_INTERPRETED_REGEXP |
56 #include "regexp-macro-assembler.h" | 56 #include "regexp-macro-assembler.h" |
57 #include "mips/regexp-macro-assembler-mips.h" | 57 #include "mips/regexp-macro-assembler-mips.h" |
58 #endif | 58 #endif |
59 | 59 |
60 namespace v8 { | 60 namespace v8 { |
61 namespace internal { | 61 namespace internal { |
62 | 62 |
63 static LazyMutex gc_initializer_mutex = LAZY_MUTEX_INITIALIZER; | 63 |
| 64 static Mutex* gc_initializer_mutex = OS::CreateMutex(); |
64 | 65 |
65 | 66 |
66 Heap::Heap() | 67 Heap::Heap() |
67 : isolate_(NULL), | 68 : isolate_(NULL), |
68 // semispace_size_ should be a power of 2 and old_generation_size_ should be | 69 // semispace_size_ should be a power of 2 and old_generation_size_ should be |
69 // a multiple of Page::kPageSize. | 70 // a multiple of Page::kPageSize. |
70 #if defined(ANDROID) | 71 #if defined(ANDROID) |
71 #define LUMP_OF_MEMORY (128 * KB) | 72 #define LUMP_OF_MEMORY (128 * KB) |
72 code_range_size_(0), | 73 code_range_size_(0), |
73 #elif defined(V8_TARGET_ARCH_X64) | 74 #elif defined(V8_TARGET_ARCH_X64) |
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5858 // call Heap::TearDown() to release allocated memory. | 5859 // call Heap::TearDown() to release allocated memory. |
5859 // | 5860 // |
5860 // If the heap is not yet configured (e.g. through the API), configure it. | 5861 // If the heap is not yet configured (e.g. through the API), configure it. |
5861 // Configuration is based on the flags new-space-size (really the semispace | 5862 // Configuration is based on the flags new-space-size (really the semispace |
5862 // size) and old-space-size if set or the initial values of semispace_size_ | 5863 // size) and old-space-size if set or the initial values of semispace_size_ |
5863 // and old_generation_size_ otherwise. | 5864 // and old_generation_size_ otherwise. |
5864 if (!configured_) { | 5865 if (!configured_) { |
5865 if (!ConfigureHeapDefault()) return false; | 5866 if (!ConfigureHeapDefault()) return false; |
5866 } | 5867 } |
5867 | 5868 |
5868 gc_initializer_mutex.Pointer()->Lock(); | 5869 gc_initializer_mutex->Lock(); |
5869 static bool initialized_gc = false; | 5870 static bool initialized_gc = false; |
5870 if (!initialized_gc) { | 5871 if (!initialized_gc) { |
5871 initialized_gc = true; | 5872 initialized_gc = true; |
5872 InitializeScavengingVisitorsTables(); | 5873 InitializeScavengingVisitorsTables(); |
5873 NewSpaceScavenger::Initialize(); | 5874 NewSpaceScavenger::Initialize(); |
5874 MarkCompactCollector::Initialize(); | 5875 MarkCompactCollector::Initialize(); |
5875 } | 5876 } |
5876 gc_initializer_mutex.Pointer()->Unlock(); | 5877 gc_initializer_mutex->Unlock(); |
5877 | 5878 |
5878 MarkMapPointersAsEncoded(false); | 5879 MarkMapPointersAsEncoded(false); |
5879 | 5880 |
5880 // Set up memory allocator. | 5881 // Set up memory allocator. |
5881 if (!isolate_->memory_allocator()->SetUp(MaxReserved(), MaxExecutableSize())) | 5882 if (!isolate_->memory_allocator()->SetUp(MaxReserved(), MaxExecutableSize())) |
5882 return false; | 5883 return false; |
5883 | 5884 |
5884 // Set up new space. | 5885 // Set up new space. |
5885 if (!new_space_.SetUp(reserved_semispace_size_, max_semispace_size_)) { | 5886 if (!new_space_.SetUp(reserved_semispace_size_, max_semispace_size_)) { |
5886 return false; | 5887 return false; |
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6977 } else { | 6978 } else { |
6978 p ^= 0x1d1ed & (Page::kPageSize - 1); // I died. | 6979 p ^= 0x1d1ed & (Page::kPageSize - 1); // I died. |
6979 } | 6980 } |
6980 remembered_unmapped_pages_[remembered_unmapped_pages_index_] = | 6981 remembered_unmapped_pages_[remembered_unmapped_pages_index_] = |
6981 reinterpret_cast<Address>(p); | 6982 reinterpret_cast<Address>(p); |
6982 remembered_unmapped_pages_index_++; | 6983 remembered_unmapped_pages_index_++; |
6983 remembered_unmapped_pages_index_ %= kRememberedUnmappedPages; | 6984 remembered_unmapped_pages_index_ %= kRememberedUnmappedPages; |
6984 } | 6985 } |
6985 | 6986 |
6986 } } // namespace v8::internal | 6987 } } // namespace v8::internal |
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