// Copyright 2018 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef V8_EXTERNAL_REFERENCE_H_ #define V8_EXTERNAL_REFERENCE_H_ #include "src/globals.h" #include "src/runtime/runtime.h" namespace v8 { class ApiFunction; namespace internal { class Isolate; class Page; class SCTableReference; class StatsCounter; //------------------------------------------------------------------------------ // External references #define EXTERNAL_REFERENCE_LIST_WITH_ISOLATE(V) \ V(isolate_address, "isolate") \ V(builtins_address, "builtins") \ V(handle_scope_implementer_address, \ "Isolate::handle_scope_implementer_address") \ V(address_of_interpreter_entry_trampoline_instruction_start, \ "Address of the InterpreterEntryTrampoline instruction start") \ V(interpreter_dispatch_counters, "Interpreter::dispatch_counters") \ V(interpreter_dispatch_table_address, "Interpreter::dispatch_table_address") \ V(date_cache_stamp, "date_cache_stamp") \ V(stress_deopt_count, "Isolate::stress_deopt_count_address()") \ V(force_slow_path, "Isolate::force_slow_path_address()") \ V(isolate_root, "Isolate::isolate_root()") \ V(allocation_sites_list_address, "Heap::allocation_sites_list_address()") \ V(address_of_stack_limit, "StackGuard::address_of_jslimit()") \ V(address_of_real_stack_limit, "StackGuard::address_of_real_jslimit()") \ V(store_buffer_top, "store_buffer_top") \ V(heap_is_marking_flag_address, "heap_is_marking_flag_address") \ V(new_space_allocation_top_address, "Heap::NewSpaceAllocationTopAddress()") \ V(new_space_allocation_limit_address, \ "Heap::NewSpaceAllocationLimitAddress()") \ V(old_space_allocation_top_address, "Heap::OldSpaceAllocationTopAddress") \ V(old_space_allocation_limit_address, \ "Heap::OldSpaceAllocationLimitAddress") \ V(handle_scope_level_address, "HandleScope::level") \ V(handle_scope_next_address, "HandleScope::next") \ V(handle_scope_limit_address, "HandleScope::limit") \ V(scheduled_exception_address, "Isolate::scheduled_exception") \ V(address_of_pending_message_obj, "address_of_pending_message_obj") \ V(promise_hook_address, "Isolate::promise_hook_address()") \ V(async_event_delegate_address, "Isolate::async_event_delegate_address()") \ V(promise_hook_or_async_event_delegate_address, \ "Isolate::promise_hook_or_async_event_delegate_address()") \ V(promise_hook_or_debug_is_active_or_async_event_delegate_address, \ "Isolate::promise_hook_or_debug_is_active_or_async_event_delegate_" \ "address()") \ V(debug_execution_mode_address, "Isolate::debug_execution_mode_address()") \ V(debug_is_active_address, "Debug::is_active_address()") \ V(debug_hook_on_function_call_address, \ "Debug::hook_on_function_call_address()") \ V(runtime_function_table_address, \ "Runtime::runtime_function_table_address()") \ V(is_profiling_address, "Isolate::is_profiling") \ V(debug_suspended_generator_address, \ "Debug::step_suspended_generator_address()") \ V(debug_restart_fp_address, "Debug::restart_fp_address()") \ V(fast_c_call_caller_fp_address, \ "IsolateData::fast_c_call_caller_fp_address") \ V(fast_c_call_caller_pc_address, \ "IsolateData::fast_c_call_caller_pc_address") \ V(address_of_regexp_stack_limit, "RegExpStack::limit_address()") \ V(address_of_regexp_stack_memory_address, "RegExpStack::memory_address()") \ V(address_of_regexp_stack_memory_size, "RegExpStack::memory_size()") \ V(address_of_static_offsets_vector, "OffsetsVector::static_offsets_vector") \ V(re_case_insensitive_compare_uc16, \ "NativeRegExpMacroAssembler::CaseInsensitiveCompareUC16()") \ V(re_check_stack_guard_state, \ "RegExpMacroAssembler*::CheckStackGuardState()") \ V(re_grow_stack, "NativeRegExpMacroAssembler::GrowStack()") \ V(re_word_character_map, "NativeRegExpMacroAssembler::word_character_map") #define EXTERNAL_REFERENCE_LIST(V) \ V(abort_with_reason, "abort_with_reason") \ V(address_of_double_abs_constant, "double_absolute_constant") \ V(address_of_double_neg_constant, "double_negate_constant") \ V(address_of_float_abs_constant, "float_absolute_constant") \ V(address_of_float_neg_constant, "float_negate_constant") \ V(address_of_harmony_await_optimization_flag, \ "FLAG_harmony_await_optimization") \ V(address_of_min_int, "LDoubleConstant::min_int") \ V(address_of_mock_arraybuffer_allocator_flag, \ "FLAG_mock_arraybuffer_allocator") \ V(address_of_one_half, "LDoubleConstant::one_half") \ V(address_of_runtime_stats_flag, "FLAG_runtime_stats") \ V(address_of_the_hole_nan, "the_hole_nan") \ V(address_of_uint32_bias, "uint32_bias") \ V(bytecode_size_table_address, "Bytecodes::bytecode_size_table_address") \ V(check_object_type, "check_object_type") \ V(compute_integer_hash, "ComputeSeededHash") \ V(compute_output_frames_function, "Deoptimizer::ComputeOutputFrames()") \ V(copy_fast_number_jsarray_elements_to_typed_array, \ "copy_fast_number_jsarray_elements_to_typed_array") \ V(copy_typed_array_elements_slice, "copy_typed_array_elements_slice") \ V(copy_typed_array_elements_to_typed_array, \ "copy_typed_array_elements_to_typed_array") \ V(cpu_features, "cpu_features") \ V(delete_handle_scope_extensions, "HandleScope::DeleteExtensions") \ V(f64_acos_wrapper_function, "f64_acos_wrapper") \ V(f64_asin_wrapper_function, "f64_asin_wrapper") \ V(f64_mod_wrapper_function, "f64_mod_wrapper") \ V(fixed_typed_array_base_data_offset, "fixed_typed_array_base_data_offset") \ V(get_date_field_function, "JSDate::GetField") \ V(get_or_create_hash_raw, "get_or_create_hash_raw") \ V(ieee754_acos_function, "base::ieee754::acos") \ V(ieee754_acosh_function, "base::ieee754::acosh") \ V(ieee754_asin_function, "base::ieee754::asin") \ V(ieee754_asinh_function, "base::ieee754::asinh") \ V(ieee754_atan_function, "base::ieee754::atan") \ V(ieee754_atan2_function, "base::ieee754::atan2") \ V(ieee754_atanh_function, "base::ieee754::atanh") \ V(ieee754_cbrt_function, "base::ieee754::cbrt") \ V(ieee754_cos_function, "base::ieee754::cos") \ V(ieee754_cosh_function, "base::ieee754::cosh") \ V(ieee754_exp_function, "base::ieee754::exp") \ V(ieee754_expm1_function, "base::ieee754::expm1") \ V(ieee754_log_function, "base::ieee754::log") \ V(ieee754_log10_function, "base::ieee754::log10") \ V(ieee754_log1p_function, "base::ieee754::log1p") \ V(ieee754_log2_function, "base::ieee754::log2") \ V(ieee754_pow_function, "base::ieee754::pow") \ V(ieee754_sin_function, "base::ieee754::sin") \ V(ieee754_sinh_function, "base::ieee754::sinh") \ V(ieee754_tan_function, "base::ieee754::tan") \ V(ieee754_tanh_function, "base::ieee754::tanh") \ V(incremental_marking_record_write_function, \ "IncrementalMarking::RecordWrite") \ V(invalidate_prototype_chains_function, \ "JSObject::InvalidatePrototypeChains()") \ V(invoke_accessor_getter_callback, "InvokeAccessorGetterCallback") \ V(invoke_function_callback, "InvokeFunctionCallback") \ V(jsarray_array_join_concat_to_sequential_string, \ "jsarray_array_join_concat_to_sequential_string") \ V(jsreceiver_create_identity_hash, "jsreceiver_create_identity_hash") \ V(libc_memchr_function, "libc_memchr") \ V(libc_memcpy_function, "libc_memcpy") \ V(libc_memmove_function, "libc_memmove") \ V(libc_memset_function, "libc_memset") \ V(log_enter_external_function, "Logger::EnterExternal") \ V(log_leave_external_function, "Logger::LeaveExternal") \ V(mod_two_doubles_operation, "mod_two_doubles") \ V(new_deoptimizer_function, "Deoptimizer::New()") \ V(orderedhashmap_gethash_raw, "orderedhashmap_gethash_raw") \ V(printf_function, "printf") \ V(refill_math_random, "MathRandom::RefillCache") \ V(search_string_raw_one_one, "search_string_raw_one_one") \ V(search_string_raw_one_two, "search_string_raw_one_two") \ V(search_string_raw_two_one, "search_string_raw_two_one") \ V(search_string_raw_two_two, "search_string_raw_two_two") \ V(smi_lexicographic_compare_function, "smi_lexicographic_compare_function") \ V(store_buffer_overflow_function, "StoreBuffer::StoreBufferOverflow") \ V(try_internalize_string_function, "try_internalize_string_function") \ V(wasm_call_trap_callback_for_testing, \ "wasm::call_trap_callback_for_testing") \ V(wasm_f32_ceil, "wasm::f32_ceil_wrapper") \ V(wasm_f32_floor, "wasm::f32_floor_wrapper") \ V(wasm_f32_nearest_int, "wasm::f32_nearest_int_wrapper") \ V(wasm_f32_trunc, "wasm::f32_trunc_wrapper") \ V(wasm_f64_ceil, "wasm::f64_ceil_wrapper") \ V(wasm_f64_floor, "wasm::f64_floor_wrapper") \ V(wasm_f64_nearest_int, "wasm::f64_nearest_int_wrapper") \ V(wasm_f64_trunc, "wasm::f64_trunc_wrapper") \ V(wasm_float32_to_int64, "wasm::float32_to_int64_wrapper") \ V(wasm_float32_to_uint64, "wasm::float32_to_uint64_wrapper") \ V(wasm_float64_pow, "wasm::float64_pow") \ V(wasm_float64_to_int64, "wasm::float64_to_int64_wrapper") \ V(wasm_float64_to_uint64, "wasm::float64_to_uint64_wrapper") \ V(wasm_int64_div, "wasm::int64_div") \ V(wasm_int64_mod, "wasm::int64_mod") \ V(wasm_int64_to_float32, "wasm::int64_to_float32_wrapper") \ V(wasm_int64_to_float64, "wasm::int64_to_float64_wrapper") \ V(wasm_uint64_div, "wasm::uint64_div") \ V(wasm_uint64_mod, "wasm::uint64_mod") \ V(wasm_uint64_to_float32, "wasm::uint64_to_float32_wrapper") \ V(wasm_uint64_to_float64, "wasm::uint64_to_float64_wrapper") \ V(wasm_word32_ctz, "wasm::word32_ctz") \ V(wasm_word32_popcnt, "wasm::word32_popcnt") \ V(wasm_word32_rol, "wasm::word32_rol") \ V(wasm_word32_ror, "wasm::word32_ror") \ V(wasm_word64_ctz, "wasm::word64_ctz") \ V(wasm_word64_popcnt, "wasm::word64_popcnt") \ V(wasm_memory_copy, "wasm::memory_copy") \ V(wasm_memory_fill, "wasm::memory_fill") \ V(call_enqueue_microtask_function, "MicrotaskQueue::CallEnqueueMicrotask") \ V(call_enter_context_function, "call_enter_context_function") \ V(atomic_pair_load_function, "atomic_pair_load_function") \ V(atomic_pair_store_function, "atomic_pair_store_function") \ V(atomic_pair_add_function, "atomic_pair_add_function") \ V(atomic_pair_sub_function, "atomic_pair_sub_function") \ V(atomic_pair_and_function, "atomic_pair_and_function") \ V(atomic_pair_or_function, "atomic_pair_or_function") \ V(atomic_pair_xor_function, "atomic_pair_xor_function") \ V(atomic_pair_exchange_function, "atomic_pair_exchange_function") \ V(atomic_pair_compare_exchange_function, \ "atomic_pair_compare_exchange_function") \ EXTERNAL_REFERENCE_LIST_INTL(V) #ifdef V8_INTL_SUPPORT #define EXTERNAL_REFERENCE_LIST_INTL(V) \ V(intl_convert_one_byte_to_lower, "intl_convert_one_byte_to_lower") \ V(intl_to_latin1_lower_table, "intl_to_latin1_lower_table") #else #define EXTERNAL_REFERENCE_LIST_INTL(V) #endif // V8_INTL_SUPPORT // An ExternalReference represents a C++ address used in the generated // code. All references to C++ functions and variables must be encapsulated // in an ExternalReference instance. This is done in order to track the // origin of all external references in the code so that they can be bound // to the correct addresses when deserializing a heap. class ExternalReference { public: // Used in the simulator to support different native api calls. enum Type { // Builtin call. // Address f(v8::internal::Arguments). BUILTIN_CALL, // default // Builtin call returning object pair. // ObjectPair f(v8::internal::Arguments). BUILTIN_CALL_PAIR, // Builtin that takes float arguments and returns an int. // int f(double, double). BUILTIN_COMPARE_CALL, // Builtin call that returns floating point. // double f(double, double). BUILTIN_FP_FP_CALL, // Builtin call that returns floating point. // double f(double). BUILTIN_FP_CALL, // Builtin call that returns floating point. // double f(double, int). BUILTIN_FP_INT_CALL, // Direct call to API function callback. // void f(v8::FunctionCallbackInfo&) DIRECT_API_CALL, // Call to function callback via InvokeFunctionCallback. // void f(v8::FunctionCallbackInfo&, v8::FunctionCallback) PROFILING_API_CALL, // Direct call to accessor getter callback. // void f(Local<Name> property, PropertyCallbackInfo& info) DIRECT_GETTER_CALL, // Call to accessor getter callback via InvokeAccessorGetterCallback. // void f(Local<Name> property, PropertyCallbackInfo& info, // AccessorNameGetterCallback callback) PROFILING_GETTER_CALL }; static constexpr int kExternalReferenceCount = #define COUNT_EXTERNAL_REFERENCE(name, desc) +1 EXTERNAL_REFERENCE_LIST(COUNT_EXTERNAL_REFERENCE) EXTERNAL_REFERENCE_LIST_WITH_ISOLATE(COUNT_EXTERNAL_REFERENCE); #undef COUNT_EXTERNAL_REFERENCE typedef Address ExternalReferenceRedirector(Address original, Type type); ExternalReference() : address_(kNullAddress) {} static ExternalReference Create(const SCTableReference& table_ref); static ExternalReference Create(StatsCounter* counter); static ExternalReference Create(ApiFunction* ptr, Type type); static ExternalReference Create(const Runtime::Function* f); static ExternalReference Create(IsolateAddressId id, Isolate* isolate); static ExternalReference Create(Runtime::FunctionId id); static V8_EXPORT_PRIVATE ExternalReference Create(Address address); template <typename SubjectChar, typename PatternChar> static ExternalReference search_string_raw(); static ExternalReference FromRawAddress(Address address); #define DECL_EXTERNAL_REFERENCE(name, desc) static ExternalReference name(); EXTERNAL_REFERENCE_LIST(DECL_EXTERNAL_REFERENCE) #undef DECL_EXTERNAL_REFERENCE #define DECL_EXTERNAL_REFERENCE(name, desc) \ static V8_EXPORT_PRIVATE ExternalReference name(Isolate* isolate); EXTERNAL_REFERENCE_LIST_WITH_ISOLATE(DECL_EXTERNAL_REFERENCE) #undef DECL_EXTERNAL_REFERENCE V8_EXPORT_PRIVATE V8_NOINLINE static ExternalReference runtime_function_table_address_for_unittests(Isolate* isolate); Address address() const { return address_; } private: explicit ExternalReference(Address address) : address_(address) {} explicit ExternalReference(void* address) : address_(reinterpret_cast<Address>(address)) {} static Address Redirect(Address address_arg, Type type = ExternalReference::BUILTIN_CALL); Address address_; }; ASSERT_TRIVIALLY_COPYABLE(ExternalReference); V8_EXPORT_PRIVATE bool operator==(ExternalReference, ExternalReference); bool operator!=(ExternalReference, ExternalReference); size_t hash_value(ExternalReference); V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream&, ExternalReference); void abort_with_reason(int reason); } // namespace internal } // namespace v8 #endif // V8_EXTERNAL_REFERENCE_H_