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Issue 9190001: Backport @10366 to 3.6 Base URL: http://v8.googlecode.com/svn/branches/3.6/
Patch Set: '' Created 8 years, 11 months ago
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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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72 V(Map, meta_map, MetaMap) \ 72 V(Map, meta_map, MetaMap) \
73 V(Map, hash_table_map, HashTableMap) \ 73 V(Map, hash_table_map, HashTableMap) \
74 V(Smi, stack_limit, StackLimit) \ 74 V(Smi, stack_limit, StackLimit) \
75 V(FixedArray, number_string_cache, NumberStringCache) \ 75 V(FixedArray, number_string_cache, NumberStringCache) \
76 V(Object, instanceof_cache_function, InstanceofCacheFunction) \ 76 V(Object, instanceof_cache_function, InstanceofCacheFunction) \
77 V(Object, instanceof_cache_map, InstanceofCacheMap) \ 77 V(Object, instanceof_cache_map, InstanceofCacheMap) \
78 V(Object, instanceof_cache_answer, InstanceofCacheAnswer) \ 78 V(Object, instanceof_cache_answer, InstanceofCacheAnswer) \
79 V(FixedArray, single_character_string_cache, SingleCharacterStringCache) \ 79 V(FixedArray, single_character_string_cache, SingleCharacterStringCache) \
80 V(FixedArray, string_split_cache, StringSplitCache) \ 80 V(FixedArray, string_split_cache, StringSplitCache) \
81 V(Object, termination_exception, TerminationException) \ 81 V(Object, termination_exception, TerminationException) \
82 V(Smi, string_hash_seed, StringHashSeed) \ 82 V(Smi, hash_seed, HashSeed) \
83 V(FixedArray, empty_fixed_array, EmptyFixedArray) \ 83 V(FixedArray, empty_fixed_array, EmptyFixedArray) \
84 V(ByteArray, empty_byte_array, EmptyByteArray) \ 84 V(ByteArray, empty_byte_array, EmptyByteArray) \
85 V(FixedDoubleArray, empty_fixed_double_array, EmptyFixedDoubleArray) \ 85 V(FixedDoubleArray, empty_fixed_double_array, EmptyFixedDoubleArray) \
86 V(String, empty_string, EmptyString) \ 86 V(String, empty_string, EmptyString) \
87 V(DescriptorArray, empty_descriptor_array, EmptyDescriptorArray) \ 87 V(DescriptorArray, empty_descriptor_array, EmptyDescriptorArray) \
88 V(Map, string_map, StringMap) \ 88 V(Map, string_map, StringMap) \
89 V(Map, ascii_string_map, AsciiStringMap) \ 89 V(Map, ascii_string_map, AsciiStringMap) \
90 V(Map, symbol_map, SymbolMap) \ 90 V(Map, symbol_map, SymbolMap) \
91 V(Map, cons_string_map, ConsStringMap) \ 91 V(Map, cons_string_map, ConsStringMap) \
92 V(Map, cons_ascii_string_map, ConsAsciiStringMap) \ 92 V(Map, cons_ascii_string_map, ConsAsciiStringMap) \
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121 V(Map, oddball_map, OddballMap) \ 121 V(Map, oddball_map, OddballMap) \
122 V(Map, global_property_cell_map, GlobalPropertyCellMap) \ 122 V(Map, global_property_cell_map, GlobalPropertyCellMap) \
123 V(Map, shared_function_info_map, SharedFunctionInfoMap) \ 123 V(Map, shared_function_info_map, SharedFunctionInfoMap) \
124 V(Map, message_object_map, JSMessageObjectMap) \ 124 V(Map, message_object_map, JSMessageObjectMap) \
125 V(Map, foreign_map, ForeignMap) \ 125 V(Map, foreign_map, ForeignMap) \
126 V(Object, nan_value, NanValue) \ 126 V(Object, nan_value, NanValue) \
127 V(Object, minus_zero_value, MinusZeroValue) \ 127 V(Object, minus_zero_value, MinusZeroValue) \
128 V(Map, neander_map, NeanderMap) \ 128 V(Map, neander_map, NeanderMap) \
129 V(JSObject, message_listeners, MessageListeners) \ 129 V(JSObject, message_listeners, MessageListeners) \
130 V(Foreign, prototype_accessors, PrototypeAccessors) \ 130 V(Foreign, prototype_accessors, PrototypeAccessors) \
131 V(NumberDictionary, code_stubs, CodeStubs) \ 131 V(UnseededNumberDictionary, code_stubs, CodeStubs) \
132 V(NumberDictionary, non_monomorphic_cache, NonMonomorphicCache) \ 132 V(UnseededNumberDictionary, non_monomorphic_cache, NonMonomorphicCache) \
133 V(PolymorphicCodeCache, polymorphic_code_cache, PolymorphicCodeCache) \ 133 V(PolymorphicCodeCache, polymorphic_code_cache, PolymorphicCodeCache) \
134 V(Code, js_entry_code, JsEntryCode) \ 134 V(Code, js_entry_code, JsEntryCode) \
135 V(Code, js_construct_entry_code, JsConstructEntryCode) \ 135 V(Code, js_construct_entry_code, JsConstructEntryCode) \
136 V(FixedArray, natives_source_cache, NativesSourceCache) \ 136 V(FixedArray, natives_source_cache, NativesSourceCache) \
137 V(Object, last_script_id, LastScriptId) \ 137 V(Object, last_script_id, LastScriptId) \
138 V(Script, empty_script, EmptyScript) \ 138 V(Script, empty_script, EmptyScript) \
139 V(Smi, real_stack_limit, RealStackLimit) \ 139 V(Smi, real_stack_limit, RealStackLimit) \
140 V(StringDictionary, intrinsic_function_names, IntrinsicFunctionNames) \ 140 V(StringDictionary, intrinsic_function_names, IntrinsicFunctionNames) \
141 141
142 #define ROOT_LIST(V) \ 142 #define ROOT_LIST(V) \
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1030 // Checks whether an address/object in a space. 1030 // Checks whether an address/object in a space.
1031 // Currently used by tests, serialization and heap verification only. 1031 // Currently used by tests, serialization and heap verification only.
1032 bool InSpace(Address addr, AllocationSpace space); 1032 bool InSpace(Address addr, AllocationSpace space);
1033 bool InSpace(HeapObject* value, AllocationSpace space); 1033 bool InSpace(HeapObject* value, AllocationSpace space);
1034 1034
1035 // Finds out which space an object should get promoted to based on its type. 1035 // Finds out which space an object should get promoted to based on its type.
1036 inline OldSpace* TargetSpace(HeapObject* object); 1036 inline OldSpace* TargetSpace(HeapObject* object);
1037 inline AllocationSpace TargetSpaceId(InstanceType type); 1037 inline AllocationSpace TargetSpaceId(InstanceType type);
1038 1038
1039 // Sets the stub_cache_ (only used when expanding the dictionary). 1039 // Sets the stub_cache_ (only used when expanding the dictionary).
1040 void public_set_code_stubs(NumberDictionary* value) { 1040 void public_set_code_stubs(UnseededNumberDictionary* value) {
1041 roots_[kCodeStubsRootIndex] = value; 1041 roots_[kCodeStubsRootIndex] = value;
1042 } 1042 }
1043 1043
1044 // Support for computing object sizes for old objects during GCs. Returns 1044 // Support for computing object sizes for old objects during GCs. Returns
1045 // a function that is guaranteed to be safe for computing object sizes in 1045 // a function that is guaranteed to be safe for computing object sizes in
1046 // the current GC phase. 1046 // the current GC phase.
1047 HeapObjectCallback GcSafeSizeOfOldObjectFunction() { 1047 HeapObjectCallback GcSafeSizeOfOldObjectFunction() {
1048 return gc_safe_size_of_old_object_; 1048 return gc_safe_size_of_old_object_;
1049 } 1049 }
1050 1050
1051 // Sets the non_monomorphic_cache_ (only used when expanding the dictionary). 1051 // Sets the non_monomorphic_cache_ (only used when expanding the dictionary).
1052 void public_set_non_monomorphic_cache(NumberDictionary* value) { 1052 void public_set_non_monomorphic_cache(UnseededNumberDictionary* value) {
1053 roots_[kNonMonomorphicCacheRootIndex] = value; 1053 roots_[kNonMonomorphicCacheRootIndex] = value;
1054 } 1054 }
1055 1055
1056 void public_set_empty_script(Script* script) { 1056 void public_set_empty_script(Script* script) {
1057 roots_[kEmptyScriptRootIndex] = script; 1057 roots_[kEmptyScriptRootIndex] = script;
1058 } 1058 }
1059 1059
1060 // Update the next script id. 1060 // Update the next script id.
1061 inline void SetLastScriptId(Object* last_script_id); 1061 inline void SetLastScriptId(Object* last_script_id);
1062 1062
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1294 bool is_safe_to_read_maps() { return is_safe_to_read_maps_; } 1294 bool is_safe_to_read_maps() { return is_safe_to_read_maps_; }
1295 1295
1296 void CallGlobalGCPrologueCallback() { 1296 void CallGlobalGCPrologueCallback() {
1297 if (global_gc_prologue_callback_ != NULL) global_gc_prologue_callback_(); 1297 if (global_gc_prologue_callback_ != NULL) global_gc_prologue_callback_();
1298 } 1298 }
1299 1299
1300 void CallGlobalGCEpilogueCallback() { 1300 void CallGlobalGCEpilogueCallback() {
1301 if (global_gc_epilogue_callback_ != NULL) global_gc_epilogue_callback_(); 1301 if (global_gc_epilogue_callback_ != NULL) global_gc_epilogue_callback_();
1302 } 1302 }
1303 1303
1304 uint32_t StringHashSeed() { 1304 uint32_t HashSeed() {
1305 uint32_t seed = static_cast<uint32_t>(string_hash_seed()->value()); 1305 uint32_t seed = static_cast<uint32_t>(hash_seed()->value());
1306 ASSERT(FLAG_randomize_string_hashes || seed == 0); 1306 ASSERT(FLAG_randomize_hashes || seed == 0);
1307 return seed; 1307 return seed;
1308 } 1308 }
1309 1309
1310 private: 1310 private:
1311 Heap(); 1311 Heap();
1312 1312
1313 // This can be calculated directly from a pointer to the heap; however, it is 1313 // This can be calculated directly from a pointer to the heap; however, it is
1314 // more expedient to get at the isolate directly from within Heap methods. 1314 // more expedient to get at the isolate directly from within Heap methods.
1315 Isolate* isolate_; 1315 Isolate* isolate_;
1316 1316
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2355 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); 2355 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
2356 }; 2356 };
2357 #endif // DEBUG || LIVE_OBJECT_LIST 2357 #endif // DEBUG || LIVE_OBJECT_LIST
2358 2358
2359 2359
2360 } } // namespace v8::internal 2360 } } // namespace v8::internal
2361 2361
2362 #undef HEAP 2362 #undef HEAP
2363 2363
2364 #endif // V8_HEAP_H_ 2364 #endif // V8_HEAP_H_
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