V(Map, fixed_cow_array_map, FixedCOWArrayMap) \
V(Map, fixed_double_array_map, FixedDoubleArrayMap) \
V(Map, constant_pool_array_map, ConstantPoolArrayMap) \
+ V(Map, weak_cell_map, WeakCellMap) \
V(Oddball, no_interceptor_result_sentinel, NoInterceptorResultSentinel) \
V(Map, hash_table_map, HashTableMap) \
V(Map, ordered_hash_table_map, OrderedHashTableMap) \
V(Map, external_string_with_one_byte_data_map, \
ExternalStringWithOneByteDataMap) \
V(Map, external_one_byte_string_map, ExternalOneByteStringMap) \
+ V(Map, native_source_string_map, NativeSourceStringMap) \
V(Map, short_external_string_map, ShortExternalStringMap) \
V(Map, short_external_string_with_one_byte_data_map, \
ShortExternalStringWithOneByteDataMap) \
V(JSObject, observation_state, ObservationState) \
V(Map, external_map, ExternalMap) \
V(Object, symbol_registry, SymbolRegistry) \
- V(Symbol, frozen_symbol, FrozenSymbol) \
- V(Symbol, nonexistent_symbol, NonExistentSymbol) \
- V(Symbol, elements_transition_symbol, ElementsTransitionSymbol) \
V(SeededNumberDictionary, empty_slow_element_dictionary, \
EmptySlowElementDictionary) \
- V(Symbol, observed_symbol, ObservedSymbol) \
- V(Symbol, uninitialized_symbol, UninitializedSymbol) \
- V(Symbol, megamorphic_symbol, MegamorphicSymbol) \
- V(Symbol, premonomorphic_symbol, PremonomorphicSymbol) \
- V(Symbol, generic_symbol, GenericSymbol) \
- V(Symbol, stack_trace_symbol, StackTraceSymbol) \
- V(Symbol, detailed_stack_trace_symbol, DetailedStackTraceSymbol) \
- V(Symbol, normal_ic_symbol, NormalICSymbol) \
- V(Symbol, home_object_symbol, HomeObjectSymbol) \
V(FixedArray, materialized_objects, MaterializedObjects) \
V(FixedArray, allocation_sites_scratchpad, AllocationSitesScratchpad) \
V(FixedArray, microtask_queue, MicrotaskQueue)
SMI_ROOT_LIST(V) \
V(StringTable, string_table, StringTable)
+#define INTERNALIZED_STRING_LIST(V) \
+ V(Object_string, "Object") \
+ V(proto_string, "__proto__") \
+ V(arguments_string, "arguments") \
+ V(Arguments_string, "Arguments") \
+ V(caller_string, "caller") \
+ V(boolean_string, "boolean") \
+ V(Boolean_string, "Boolean") \
+ V(callee_string, "callee") \
+ V(constructor_string, "constructor") \
+ V(dot_result_string, ".result") \
+ V(dot_for_string, ".for.") \
+ V(eval_string, "eval") \
+ V(empty_string, "") \
+ V(function_string, "function") \
+ V(Function_string, "Function") \
+ V(length_string, "length") \
+ V(name_string, "name") \
+ V(null_string, "null") \
+ V(number_string, "number") \
+ V(Number_string, "Number") \
+ V(nan_string, "NaN") \
+ V(source_string, "source") \
+ V(source_url_string, "source_url") \
+ V(source_mapping_url_string, "source_mapping_url") \
+ V(global_string, "global") \
+ V(ignore_case_string, "ignoreCase") \
+ V(multiline_string, "multiline") \
+ V(sticky_string, "sticky") \
+ V(harmony_regexps_string, "harmony_regexps") \
+ V(input_string, "input") \
+ V(index_string, "index") \
+ V(last_index_string, "lastIndex") \
+ V(object_string, "object") \
+ V(prototype_string, "prototype") \
+ V(string_string, "string") \
+ V(String_string, "String") \
+ V(symbol_string, "symbol") \
+ V(Symbol_string, "Symbol") \
+ V(Map_string, "Map") \
+ V(Set_string, "Set") \
+ V(WeakMap_string, "WeakMap") \
+ V(WeakSet_string, "WeakSet") \
+ V(for_string, "for") \
+ V(for_api_string, "for_api") \
+ V(for_intern_string, "for_intern") \
+ V(private_api_string, "private_api") \
+ V(private_intern_string, "private_intern") \
+ V(Date_string, "Date") \
+ V(char_at_string, "CharAt") \
+ V(undefined_string, "undefined") \
+ V(value_of_string, "valueOf") \
+ V(stack_string, "stack") \
+ V(toJSON_string, "toJSON") \
+ V(KeyedLoadMonomorphic_string, "KeyedLoadMonomorphic") \
+ V(KeyedStoreMonomorphic_string, "KeyedStoreMonomorphic") \
+ V(stack_overflow_string, "kStackOverflowBoilerplate") \
+ V(illegal_access_string, "illegal access") \
+ V(cell_value_string, "%cell_value") \
+ V(illegal_argument_string, "illegal argument") \
+ V(identity_hash_string, "v8::IdentityHash") \
+ V(closure_string, "(closure)") \
+ V(dot_string, ".") \
+ V(compare_ic_string, "==") \
+ V(strict_compare_ic_string, "===") \
+ V(infinity_string, "Infinity") \
+ V(minus_infinity_string, "-Infinity") \
+ V(query_colon_string, "(?:)") \
+ V(Generator_string, "Generator") \
+ V(throw_string, "throw") \
+ V(done_string, "done") \
+ V(value_string, "value") \
+ V(next_string, "next") \
+ V(byte_length_string, "byteLength") \
+ V(byte_offset_string, "byteOffset") \
+ V(minus_zero_string, "-0") \
+ V(Array_string, "Array") \
+ V(Error_string, "Error") \
+ V(float32x4_string, "float32x4") \
+ V(float64x2_string, "float64x2") \
+ V(int32x4_string, "int32x4") \
+ V(signMask, "signMask") \
+ V(x, "x") \
+ V(y, "y") \
+ V(z, "z") \
+ V(w, "w") \
+ V(flagX, "flagX") \
+ V(flagY, "flagY") \
+ V(flagZ, "flagZ") \
+ V(flagW, "flagW") \
+ V(simd, "SIMD") \
+ V(RegExp_string, "RegExp")
+
+#define PRIVATE_SYMBOL_LIST(V) \
+ V(frozen_symbol) \
+ V(nonexistent_symbol) \
+ V(elements_transition_symbol) \
+ V(observed_symbol) \
+ V(uninitialized_symbol) \
+ V(megamorphic_symbol) \
+ V(premonomorphic_symbol) \
+ V(generic_symbol) \
+ V(stack_trace_symbol) \
+ V(detailed_stack_trace_symbol) \
+ V(normal_ic_symbol) \
+ V(home_object_symbol) \
+ V(intl_initialized_marker_symbol) \
+ V(intl_impl_object_symbol) \
+ V(promise_debug_marker_symbol) \
+ V(promise_has_handler_symbol) \
+ V(class_script_symbol) \
+ V(class_start_position_symbol) \
+ V(class_end_position_symbol)
+
// Heap roots that are known to be immortal immovable, for which we can safely
-// skip write barriers.
+// skip write barriers. This list is not complete and has omissions.
#define IMMORTAL_IMMOVABLE_ROOT_LIST(V) \
- V(byte_array_map) \
- V(free_space_map) \
- V(one_pointer_filler_map) \
- V(two_pointer_filler_map) \
- V(undefined_value) \
- V(the_hole_value) \
- V(null_value) \
- V(true_value) \
- V(false_value) \
- V(uninitialized_value) \
- V(cell_map) \
- V(global_property_cell_map) \
- V(shared_function_info_map) \
- V(meta_map) \
- V(heap_number_map) \
- V(mutable_heap_number_map) \
- V(native_context_map) \
- V(fixed_array_map) \
- V(code_map) \
- V(scope_info_map) \
- V(fixed_cow_array_map) \
- V(fixed_double_array_map) \
- V(constant_pool_array_map) \
- V(no_interceptor_result_sentinel) \
- V(hash_table_map) \
- V(ordered_hash_table_map) \
- V(empty_fixed_array) \
- V(empty_byte_array) \
- V(empty_descriptor_array) \
- V(empty_constant_pool_array) \
- V(arguments_marker) \
- V(symbol_map) \
- V(sloppy_arguments_elements_map) \
- V(function_context_map) \
- V(catch_context_map) \
- V(with_context_map) \
- V(block_context_map) \
- V(module_context_map) \
- V(global_context_map) \
- V(undefined_map) \
- V(the_hole_map) \
- V(null_map) \
- V(boolean_map) \
- V(uninitialized_map) \
- V(message_object_map) \
- V(foreign_map) \
- V(neander_map)
-
-#define INTERNALIZED_STRING_LIST(V) \
- V(Object_string, "Object") \
- V(proto_string, "__proto__") \
- V(arguments_string, "arguments") \
- V(Arguments_string, "Arguments") \
- V(caller_string, "caller") \
- V(boolean_string, "boolean") \
- V(Boolean_string, "Boolean") \
- V(callee_string, "callee") \
- V(constructor_string, "constructor") \
- V(dot_result_string, ".result") \
- V(dot_for_string, ".for.") \
- V(eval_string, "eval") \
- V(empty_string, "") \
- V(function_string, "function") \
- V(Function_string, "Function") \
- V(length_string, "length") \
- V(name_string, "name") \
- V(null_string, "null") \
- V(number_string, "number") \
- V(Number_string, "Number") \
- V(float32x4_string, "float32x4") \
- V(float64x2_string, "float64x2") \
- V(int32x4_string, "int32x4") \
- V(nan_string, "NaN") \
- V(source_string, "source") \
- V(source_url_string, "source_url") \
- V(source_mapping_url_string, "source_mapping_url") \
- V(global_string, "global") \
- V(ignore_case_string, "ignoreCase") \
- V(multiline_string, "multiline") \
- V(sticky_string, "sticky") \
- V(harmony_regexps_string, "harmony_regexps") \
- V(input_string, "input") \
- V(index_string, "index") \
- V(last_index_string, "lastIndex") \
- V(object_string, "object") \
- V(prototype_string, "prototype") \
- V(string_string, "string") \
- V(String_string, "String") \
- V(symbol_string, "symbol") \
- V(Symbol_string, "Symbol") \
- V(Map_string, "Map") \
- V(Set_string, "Set") \
- V(WeakMap_string, "WeakMap") \
- V(WeakSet_string, "WeakSet") \
- V(for_string, "for") \
- V(for_api_string, "for_api") \
- V(for_intern_string, "for_intern") \
- V(private_api_string, "private_api") \
- V(private_intern_string, "private_intern") \
- V(Date_string, "Date") \
- V(char_at_string, "CharAt") \
- V(undefined_string, "undefined") \
- V(value_of_string, "valueOf") \
- V(stack_string, "stack") \
- V(toJSON_string, "toJSON") \
- V(KeyedLoadMonomorphic_string, "KeyedLoadMonomorphic") \
- V(KeyedStoreMonomorphic_string, "KeyedStoreMonomorphic") \
- V(stack_overflow_string, "kStackOverflowBoilerplate") \
- V(illegal_access_string, "illegal access") \
- V(cell_value_string, "%cell_value") \
- V(illegal_argument_string, "illegal argument") \
- V(identity_hash_string, "v8::IdentityHash") \
- V(closure_string, "(closure)") \
- V(dot_string, ".") \
- V(compare_ic_string, "==") \
- V(strict_compare_ic_string, "===") \
- V(infinity_string, "Infinity") \
- V(minus_infinity_string, "-Infinity") \
- V(query_colon_string, "(?:)") \
- V(Generator_string, "Generator") \
- V(throw_string, "throw") \
- V(done_string, "done") \
- V(value_string, "value") \
- V(signMask, "signMask") \
- V(x, "x") \
- V(y, "y") \
- V(z, "z") \
- V(w, "w") \
- V(flagX, "flagX") \
- V(flagY, "flagY") \
- V(flagZ, "flagZ") \
- V(flagW, "flagW") \
- V(simd, "SIMD") \
- V(next_string, "next") \
- V(byte_length_string, "byteLength") \
- V(byte_offset_string, "byteOffset") \
- V(intl_initialized_marker_string, "v8::intl_initialized_marker") \
- V(intl_impl_object_string, "v8::intl_object")
+ V(ByteArrayMap) \
+ V(FreeSpaceMap) \
+ V(OnePointerFillerMap) \
+ V(TwoPointerFillerMap) \
+ V(UndefinedValue) \
+ V(TheHoleValue) \
+ V(NullValue) \
+ V(TrueValue) \
+ V(FalseValue) \
+ V(UninitializedValue) \
+ V(CellMap) \
+ V(GlobalPropertyCellMap) \
+ V(SharedFunctionInfoMap) \
+ V(MetaMap) \
+ V(HeapNumberMap) \
+ V(MutableHeapNumberMap) \
+ V(NativeContextMap) \
+ V(FixedArrayMap) \
+ V(CodeMap) \
+ V(ScopeInfoMap) \
+ V(FixedCOWArrayMap) \
+ V(FixedDoubleArrayMap) \
+ V(ConstantPoolArrayMap) \
+ V(WeakCellMap) \
+ V(NoInterceptorResultSentinel) \
+ V(HashTableMap) \
+ V(OrderedHashTableMap) \
+ V(EmptyFixedArray) \
+ V(EmptyByteArray) \
+ V(EmptyDescriptorArray) \
+ V(EmptyConstantPoolArray) \
+ V(ArgumentsMarker) \
+ V(SymbolMap) \
+ V(SloppyArgumentsElementsMap) \
+ V(FunctionContextMap) \
+ V(CatchContextMap) \
+ V(WithContextMap) \
+ V(BlockContextMap) \
+ V(ModuleContextMap) \
+ V(GlobalContextMap) \
+ V(UndefinedMap) \
+ V(TheHoleMap) \
+ V(NullMap) \
+ V(BooleanMap) \
+ V(UninitializedMap) \
+ V(ArgumentsMarkerMap) \
+ V(JSMessageObjectMap) \
+ V(ForeignMap) \
+ V(NeanderMap) \
+ PRIVATE_SYMBOL_LIST(V)
// Forward declarations.
class HeapStats;
// jslimit_/real_jslimit_ variable in the StackGuard.
void SetStackLimits();
+ // Notifies the heap that is ok to start marking or other activities that
+ // should not happen during deserialization.
+ void NotifyDeserializationComplete();
+
// Returns whether SetUp has been called.
bool HasBeenSetUp();
int MaxSemiSpaceSize() { return max_semi_space_size_; }
int ReservedSemiSpaceSize() { return reserved_semispace_size_; }
int InitialSemiSpaceSize() { return initial_semispace_size_; }
+ int TargetSemiSpaceSize() { return target_semispace_size_; }
intptr_t MaxOldGenerationSize() { return max_old_generation_size_; }
intptr_t MaxExecutableSize() { return max_executable_size_; }
INTERNALIZED_STRING_LIST(STRING_ACCESSOR)
#undef STRING_ACCESSOR
+#define SYMBOL_ACCESSOR(name) \
+ Symbol* name() { return Symbol::cast(roots_[k##name##RootIndex]); }
+ PRIVATE_SYMBOL_LIST(SYMBOL_ACCESSOR)
+#undef SYMBOL_ACCESSOR
+
// The hidden_string is special because it is the empty string, but does
// not match the empty string.
String* hidden_string() { return hidden_string_; }
return encountered_weak_collections_;
}
+ void set_encountered_weak_cells(Object* weak_cell) {
+ encountered_weak_cells_ = weak_cell;
+ }
+ Object* encountered_weak_cells() const { return encountered_weak_cells_; }
+
// Number of mark-sweeps.
unsigned int ms_count() { return ms_count_; }
return reinterpret_cast<Address*>(&roots_[kStoreBufferTopRootIndex]);
}
+ static bool RootIsImmortalImmovable(int root_index);
+
#ifdef VERIFY_HEAP
// Verify the heap is in its normal state before or after a GC.
void Verify();
// Support for partial snapshots. After calling this we have a linear
// space to write objects in each space.
- void ReserveSpace(int* sizes, Address* addresses);
+ struct Chunk {
+ uint32_t size;
+ Address start;
+ Address end;
+ };
+
+ typedef List<Chunk> Reservation;
+
+ // Returns false if not able to reserve.
+ bool ReserveSpace(Reservation* reservations);
//
// Support for the API.
INTERNALIZED_STRING_LIST(STRING_INDEX_DECLARATION)
#undef STRING_DECLARATION
+#define SYMBOL_INDEX_DECLARATION(name) k##name##RootIndex,
+ PRIVATE_SYMBOL_LIST(SYMBOL_INDEX_DECLARATION)
+#undef SYMBOL_INDEX_DECLARATION
+
// Utility type maps
#define DECLARE_STRUCT_MAP(NAME, Name, name) k##Name##MapRootIndex,
STRUCT_LIST(DECLARE_STRUCT_MAP)
kSmiRootsStart = kStringTableRootIndex + 1
};
+ Object* root(RootListIndex index) { return roots_[index]; }
+
STATIC_ASSERT(kUndefinedValueRootIndex ==
Internals::kUndefinedValueRootIndex);
STATIC_ASSERT(kNullValueRootIndex == Internals::kNullValueRootIndex);
inline void OnMoveEvent(HeapObject* target, HeapObject* source,
int size_in_bytes);
+ bool deserialization_complete() const { return deserialization_complete_; }
+
protected:
// Methods made available to tests.
int reserved_semispace_size_;
int max_semi_space_size_;
int initial_semispace_size_;
+ int target_semispace_size_;
intptr_t max_old_generation_size_;
intptr_t max_executable_size_;
intptr_t maximum_committed_;
// contains Smi(0) while marking is not active.
Object* encountered_weak_collections_;
+ Object* encountered_weak_cells_;
+
StoreBufferRebuilder store_buffer_rebuilder_;
struct StringTypeTable {
// Allocate a tenured JS global property cell initialized with the hole.
MUST_USE_RESULT AllocationResult AllocatePropertyCell();
+ MUST_USE_RESULT AllocationResult AllocateWeakCell(HeapObject* value);
+
// Allocates a new utility object in the old generation.
MUST_USE_RESULT AllocationResult AllocateStruct(InstanceType type);
void SelectScavengingVisitorsTable();
- void AdvanceIdleIncrementalMarking(intptr_t step_size);
+ void IdleMarkCompact(const char* message);
+
+ void TryFinalizeIdleIncrementalMarking(
+ size_t idle_time_in_ms, size_t size_of_objects,
+ size_t mark_compact_speed_in_bytes_per_ms);
bool WorthActivatingIncrementalMarking();
int gc_callbacks_depth_;
+ bool deserialization_complete_;
+
friend class AlwaysAllocateScope;
+ friend class Deserializer;
friend class Factory;
friend class GCCallbacksScope;
friend class GCTracer;
projects / platform / framework / web / crosswalk.git / blobdiff