mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-29 08:11:13 +00:00
a60ecea16a
Prior to funcref, a partial chunk of an invalid module was never needed, but funcref allows a partially instantiated module to modify imported tables with references to its own functions, which means we need to keep the second module alive while that function reference is present within the imported table. This was tested by the spectests, but very rarely caught as our GC does not behave particularly predictably, making it so the offending module remains in memory just long enough to let the tests pass. This commit makes it so all function references keep their respective modules alive.
445 lines
21 KiB
C++
445 lines
21 KiB
C++
/*
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* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/MemoryStream.h>
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#include <LibTest/JavaScriptTestRunner.h>
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#include <LibWasm/AbstractMachine/BytecodeInterpreter.h>
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#include <LibWasm/Types.h>
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#include <string.h>
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TEST_ROOT("Userland/Libraries/LibWasm/Tests");
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TESTJS_GLOBAL_FUNCTION(read_binary_wasm_file, readBinaryWasmFile)
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{
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auto& realm = *vm.current_realm();
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auto error_code_to_string = [](int code) {
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auto const* error_string = strerror(code);
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return StringView { error_string, strlen(error_string) };
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};
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auto filename = TRY(vm.argument(0).to_byte_string(vm));
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auto file = Core::File::open(filename, Core::File::OpenMode::Read);
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if (file.is_error())
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return vm.throw_completion<JS::TypeError>(error_code_to_string(file.error().code()));
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auto file_size = file.value()->size();
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if (file_size.is_error())
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return vm.throw_completion<JS::TypeError>(error_code_to_string(file_size.error().code()));
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auto array = TRY(JS::Uint8Array::create(realm, file_size.value()));
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auto read = file.value()->read_until_filled(array->data());
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if (read.is_error())
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return vm.throw_completion<JS::TypeError>(error_code_to_string(read.error().code()));
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return JS::Value(array);
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}
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class WebAssemblyModule final : public JS::Object {
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JS_OBJECT(WebAssemblyModule, JS::Object);
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public:
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explicit WebAssemblyModule(JS::Object& prototype)
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: JS::Object(ConstructWithPrototypeTag::Tag, prototype)
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{
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m_machine.enable_instruction_count_limit();
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}
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static Wasm::AbstractMachine& machine() { return m_machine; }
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Wasm::Module& module() { return *m_module; }
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Wasm::ModuleInstance& module_instance() { return *m_module_instance; }
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static JS::ThrowCompletionOr<WebAssemblyModule*> create(JS::Realm& realm, NonnullRefPtr<Wasm::Module> module, HashMap<Wasm::Linker::Name, Wasm::ExternValue> const& imports)
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{
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auto& vm = realm.vm();
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auto instance = realm.heap().allocate<WebAssemblyModule>(realm, realm.intrinsics().object_prototype());
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instance->m_module = move(module);
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Wasm::Linker linker(*instance->m_module);
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linker.link(imports);
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linker.link(spec_test_namespace());
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auto link_result = linker.finish();
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if (link_result.is_error())
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return vm.throw_completion<JS::TypeError>("Link failed"sv);
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auto result = machine().instantiate(*instance->m_module, link_result.release_value());
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if (result.is_error())
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return vm.throw_completion<JS::TypeError>(result.release_error().error);
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instance->m_module_instance = result.release_value();
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return instance.ptr();
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}
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void initialize(JS::Realm&) override;
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~WebAssemblyModule() override = default;
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private:
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JS_DECLARE_NATIVE_FUNCTION(get_export);
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JS_DECLARE_NATIVE_FUNCTION(wasm_invoke);
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static HashMap<Wasm::Linker::Name, Wasm::ExternValue> const& spec_test_namespace()
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{
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Wasm::FunctionType print_type { {}, {} };
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auto address_print = alloc_noop_function(print_type);
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s_spec_test_namespace.set({ "spectest", "print", print_type }, Wasm::ExternValue { *address_print });
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Wasm::FunctionType print_i32_type { { Wasm::ValueType(Wasm::ValueType::I32) }, {} };
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auto address_i32 = alloc_noop_function(print_i32_type);
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s_spec_test_namespace.set({ "spectest", "print_i32", print_i32_type }, Wasm::ExternValue { *address_i32 });
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Wasm::FunctionType print_i64_type { { Wasm::ValueType(Wasm::ValueType::I64) }, {} };
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auto address_i64 = alloc_noop_function(print_i64_type);
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s_spec_test_namespace.set({ "spectest", "print_i64", print_i64_type }, Wasm::ExternValue { *address_i64 });
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Wasm::FunctionType print_f32_type { { Wasm::ValueType(Wasm::ValueType::F32) }, {} };
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auto address_f32 = alloc_noop_function(print_f32_type);
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s_spec_test_namespace.set({ "spectest", "print_f32", print_f32_type }, Wasm::ExternValue { *address_f32 });
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Wasm::FunctionType print_f64_type { { Wasm::ValueType(Wasm::ValueType::F64) }, {} };
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auto address_f64 = alloc_noop_function(print_f64_type);
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s_spec_test_namespace.set({ "spectest", "print_f64", print_f64_type }, Wasm::ExternValue { *address_f64 });
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Wasm::FunctionType print_i32_f32_type { { Wasm::ValueType(Wasm::ValueType::I32), Wasm::ValueType(Wasm::ValueType::F32) }, {} };
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auto address_i32_f32 = alloc_noop_function(print_i32_f32_type);
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s_spec_test_namespace.set({ "spectest", "print_i32_f32", print_i32_f32_type }, Wasm::ExternValue { *address_i32_f32 });
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Wasm::FunctionType print_f64_f64_type { { Wasm::ValueType(Wasm::ValueType::F64), Wasm::ValueType(Wasm::ValueType::F64) }, {} };
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auto address_f64_f64 = alloc_noop_function(print_f64_f64_type);
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s_spec_test_namespace.set({ "spectest", "print_f64_f64", print_f64_f64_type }, Wasm::ExternValue { *address_f64_f64 });
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Wasm::TableType table_type { Wasm::ValueType(Wasm::ValueType::FunctionReference), Wasm::Limits(10, 20) };
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auto table_address = m_machine.store().allocate(table_type);
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s_spec_test_namespace.set({ "spectest", "table", table_type }, Wasm::ExternValue { *table_address });
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Wasm::MemoryType memory_type { Wasm::Limits(1, 2) };
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auto memory_address = m_machine.store().allocate(memory_type);
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s_spec_test_namespace.set({ "spectest", "memory", memory_type }, Wasm::ExternValue { *memory_address });
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Wasm::GlobalType global_i32 { Wasm::ValueType(Wasm::ValueType::I32), false };
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auto global_i32_address = m_machine.store().allocate(global_i32, Wasm::Value(666));
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s_spec_test_namespace.set({ "spectest", "global_i32", global_i32 }, Wasm::ExternValue { *global_i32_address });
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Wasm::GlobalType global_i64 { Wasm::ValueType(Wasm::ValueType::I64), false };
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auto global_i64_address = m_machine.store().allocate(global_i64, Wasm::Value((i64)666));
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s_spec_test_namespace.set({ "spectest", "global_i64", global_i64 }, Wasm::ExternValue { *global_i64_address });
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Wasm::GlobalType global_f32 { Wasm::ValueType(Wasm::ValueType::F32), false };
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auto global_f32_address = m_machine.store().allocate(global_f32, Wasm::Value(666.6f));
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s_spec_test_namespace.set({ "spectest", "global_f32", global_f32 }, Wasm::ExternValue { *global_f32_address });
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Wasm::GlobalType global_f64 { Wasm::ValueType(Wasm::ValueType::F64), false };
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auto global_f64_address = m_machine.store().allocate(global_f64, Wasm::Value(666.6));
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s_spec_test_namespace.set({ "spectest", "global_f64", global_f64 }, Wasm::ExternValue { *global_f64_address });
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return s_spec_test_namespace;
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}
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static Optional<Wasm::FunctionAddress> alloc_noop_function(Wasm::FunctionType type)
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{
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return m_machine.store().allocate(Wasm::HostFunction {
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[](auto&, auto&) -> Wasm::Result {
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// Noop, this just needs to exist.
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return Wasm::Result { Vector<Wasm::Value> {} };
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},
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type,
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"__TEST" });
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}
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static HashMap<Wasm::Linker::Name, Wasm::ExternValue> s_spec_test_namespace;
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static Wasm::AbstractMachine m_machine;
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RefPtr<Wasm::Module> m_module;
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OwnPtr<Wasm::ModuleInstance> m_module_instance;
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};
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Wasm::AbstractMachine WebAssemblyModule::m_machine;
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HashMap<Wasm::Linker::Name, Wasm::ExternValue> WebAssemblyModule::s_spec_test_namespace;
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TESTJS_GLOBAL_FUNCTION(parse_webassembly_module, parseWebAssemblyModule)
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{
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auto& realm = *vm.current_realm();
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auto object = TRY(vm.argument(0).to_object(vm));
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if (!is<JS::Uint8Array>(*object))
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return vm.throw_completion<JS::TypeError>("Expected a Uint8Array argument to parse_webassembly_module"sv);
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auto& array = static_cast<JS::Uint8Array&>(*object);
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FixedMemoryStream stream { array.data() };
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auto result = Wasm::Module::parse(stream);
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if (result.is_error())
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return vm.throw_completion<JS::SyntaxError>(Wasm::parse_error_to_byte_string(result.error()));
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HashMap<Wasm::Linker::Name, Wasm::ExternValue> imports;
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auto import_value = vm.argument(1);
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if (import_value.is_object()) {
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auto& import_object = import_value.as_object();
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for (auto& property : import_object.shape().property_table()) {
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auto value = import_object.get_without_side_effects(property.key);
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if (!value.is_object() || !is<WebAssemblyModule>(value.as_object()))
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continue;
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auto& module_object = static_cast<WebAssemblyModule&>(value.as_object());
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for (auto& entry : module_object.module_instance().exports()) {
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// FIXME: Don't pretend that everything is a function
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imports.set({ property.key.as_string(), entry.name(), Wasm::TypeIndex(0) }, entry.value());
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}
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}
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}
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return JS::Value(TRY(WebAssemblyModule::create(realm, result.release_value(), imports)));
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}
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TESTJS_GLOBAL_FUNCTION(compare_typed_arrays, compareTypedArrays)
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{
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auto lhs = TRY(vm.argument(0).to_object(vm));
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if (!is<JS::TypedArrayBase>(*lhs))
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return vm.throw_completion<JS::TypeError>("Expected a TypedArray"sv);
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auto& lhs_array = static_cast<JS::TypedArrayBase&>(*lhs);
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auto rhs = TRY(vm.argument(1).to_object(vm));
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if (!is<JS::TypedArrayBase>(*rhs))
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return vm.throw_completion<JS::TypeError>("Expected a TypedArray"sv);
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auto& rhs_array = static_cast<JS::TypedArrayBase&>(*rhs);
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return JS::Value(lhs_array.viewed_array_buffer()->buffer() == rhs_array.viewed_array_buffer()->buffer());
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}
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static bool _is_canonical_nan32(u32 value)
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{
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return value == 0x7FC00000 || value == 0xFFC00000;
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}
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static bool _is_canonical_nan64(u64 value)
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{
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return value == 0x7FF8000000000000 || value == 0xFFF8000000000000;
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}
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TESTJS_GLOBAL_FUNCTION(is_canonical_nan32, isCanonicalNaN32)
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{
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auto value = TRY(vm.argument(0).to_u32(vm));
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return _is_canonical_nan32(value);
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}
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TESTJS_GLOBAL_FUNCTION(is_canonical_nan64, isCanonicalNaN64)
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{
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auto value = TRY(vm.argument(0).to_bigint_uint64(vm));
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return _is_canonical_nan64(value);
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}
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TESTJS_GLOBAL_FUNCTION(is_arithmetic_nan32, isArithmeticNaN32)
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{
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auto value = bit_cast<float>(TRY(vm.argument(0).to_u32(vm)));
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return isnan(value);
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}
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TESTJS_GLOBAL_FUNCTION(is_arithmetic_nan64, isArithmeticNaN64)
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{
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auto value = bit_cast<double>(TRY(vm.argument(0).to_bigint_uint64(vm)));
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return isnan(value);
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}
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TESTJS_GLOBAL_FUNCTION(test_simd_vector, testSIMDVector)
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{
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auto expected = TRY(vm.argument(0).to_object(vm));
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if (!is<JS::Array>(*expected))
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return vm.throw_completion<JS::TypeError>("Expected an Array"sv);
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auto& expected_array = static_cast<JS::Array&>(*expected);
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auto got = TRY(vm.argument(1).to_object(vm));
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if (!is<JS::TypedArrayBase>(*got))
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return vm.throw_completion<JS::TypeError>("Expected a TypedArray"sv);
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auto& got_array = static_cast<JS::TypedArrayBase&>(*got);
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auto element_size = 128 / TRY(TRY(expected_array.get("length")).to_u32(vm));
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size_t i = 0;
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for (auto it = expected_array.indexed_properties().begin(false); it != expected_array.indexed_properties().end(); ++it) {
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auto got_value = TRY(got_array.get(i++));
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u64 got = got_value.is_bigint() ? TRY(got_value.to_bigint_uint64(vm)) : (u64)TRY(got_value.to_index(vm));
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auto expect = TRY(expected_array.get(it.index()));
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if (expect.is_string()) {
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if (element_size != 32 && element_size != 64)
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return vm.throw_completion<JS::TypeError>("Expected element of size 32 or 64"sv);
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auto string = expect.as_string().utf8_string();
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if (string == "nan:canonical") {
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auto is_canonical = element_size == 32 ? _is_canonical_nan32(got) : _is_canonical_nan64(got);
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if (!is_canonical)
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return false;
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continue;
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}
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if (string == "nan:arithmetic") {
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auto is_arithmetic = element_size == 32 ? isnan(bit_cast<float>((u32)got)) : isnan(bit_cast<double>((u64)got));
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if (!is_arithmetic)
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return false;
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continue;
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}
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return vm.throw_completion<JS::TypeError>(ByteString::formatted("Bad SIMD float expectation: {}"sv, string));
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}
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u64 expect_value = expect.is_bigint() ? TRY(expect.to_bigint_uint64(vm)) : (u64)TRY(expect.to_index(vm));
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if (got != expect_value)
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return false;
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}
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return true;
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}
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void WebAssemblyModule::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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define_native_function(realm, "getExport", get_export, 1, JS::default_attributes);
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define_native_function(realm, "invoke", wasm_invoke, 1, JS::default_attributes);
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}
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JS_DEFINE_NATIVE_FUNCTION(WebAssemblyModule::get_export)
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{
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auto name = TRY(vm.argument(0).to_byte_string(vm));
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auto this_value = vm.this_value();
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auto object = TRY(this_value.to_object(vm));
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if (!is<WebAssemblyModule>(*object))
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return vm.throw_completion<JS::TypeError>("Not a WebAssemblyModule"sv);
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auto& instance = static_cast<WebAssemblyModule&>(*object);
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for (auto& entry : instance.module_instance().exports()) {
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if (entry.name() == name) {
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auto& value = entry.value();
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if (auto ptr = value.get_pointer<Wasm::FunctionAddress>())
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return JS::Value(static_cast<unsigned long>(ptr->value()));
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if (auto v = value.get_pointer<Wasm::GlobalAddress>()) {
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auto global = m_machine.store().get(*v);
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switch (global->type().type().kind()) {
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case Wasm::ValueType::I32:
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return JS::Value(static_cast<double>(global->value().to<i32>()));
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case Wasm::ValueType::I64:
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return JS::BigInt::create(vm, Crypto::SignedBigInteger { global->value().to<i64>() });
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case Wasm::ValueType::F32:
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return JS::Value(static_cast<double>(global->value().to<float>()));
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case Wasm::ValueType::F64:
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return JS::Value(global->value().to<double>());
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case Wasm::ValueType::V128: {
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auto value = global->value().to<u128>();
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return JS::BigInt::create(vm, Crypto::SignedBigInteger::import_data(bit_cast<u8 const*>(&value), sizeof(u128)));
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}
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case Wasm::ValueType::FunctionReference:
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case Wasm::ValueType::ExternReference:
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auto ref = global->value().to<Wasm::Reference>();
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return ref.ref().visit(
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[&](Wasm::Reference::Null const&) -> JS::Value { return JS::js_null(); },
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[&](auto const& ref) -> JS::Value { return JS::Value(static_cast<double>(ref.address.value())); });
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}
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}
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return vm.throw_completion<JS::TypeError>(TRY_OR_THROW_OOM(vm, String::formatted("'{}' does not refer to a function or a global", name)));
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}
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}
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return vm.throw_completion<JS::TypeError>(TRY_OR_THROW_OOM(vm, String::formatted("'{}' could not be found", name)));
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}
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JS_DEFINE_NATIVE_FUNCTION(WebAssemblyModule::wasm_invoke)
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{
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auto address = static_cast<unsigned long>(TRY(vm.argument(0).to_double(vm)));
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Wasm::FunctionAddress function_address { address };
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auto function_instance = WebAssemblyModule::machine().store().get(function_address);
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if (!function_instance)
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return vm.throw_completion<JS::TypeError>("Invalid function address"sv);
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Wasm::FunctionType const* type { nullptr };
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function_instance->visit([&](auto& value) { type = &value.type(); });
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if (!type)
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return vm.throw_completion<JS::TypeError>("Invalid function found at given address"sv);
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Vector<Wasm::Value> arguments;
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if (type->parameters().size() + 1 > vm.argument_count())
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return vm.throw_completion<JS::TypeError>(TRY_OR_THROW_OOM(vm, String::formatted("Expected {} arguments for call, but found {}", type->parameters().size() + 1, vm.argument_count())));
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size_t index = 1;
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for (auto& param : type->parameters()) {
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auto argument = vm.argument(index++);
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double double_value = 0;
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if (!argument.is_bigint() && !argument.is_object())
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double_value = TRY(argument.to_double(vm));
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switch (param.kind()) {
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case Wasm::ValueType::Kind::I32:
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arguments.append(Wasm::Value(static_cast<i64>(double_value)));
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break;
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case Wasm::ValueType::Kind::I64:
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if (argument.is_bigint()) {
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auto value = TRY(argument.to_bigint_int64(vm));
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arguments.append(Wasm::Value(value));
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} else {
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arguments.append(Wasm::Value(static_cast<i64>(double_value)));
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}
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break;
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case Wasm::ValueType::Kind::F32:
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arguments.append(Wasm::Value(bit_cast<float>(static_cast<u32>(double_value))));
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break;
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case Wasm::ValueType::Kind::F64:
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if (argument.is_bigint()) {
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auto value = TRY(argument.to_bigint_uint64(vm));
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arguments.append(Wasm::Value(bit_cast<double>(value)));
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} else {
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arguments.append(Wasm::Value(double_value));
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}
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break;
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case Wasm::ValueType::Kind::V128: {
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auto object = MUST(argument.to_object(vm));
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if (!is<JS::TypedArrayBase>(*object))
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return vm.throw_completion<JS::TypeError>("Expected typed array"sv);
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auto& array = static_cast<JS::TypedArrayBase&>(*object);
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u128 bits = 0;
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auto* ptr = bit_cast<u8*>(&bits);
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memcpy(ptr, array.viewed_array_buffer()->buffer().data(), 16);
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arguments.append(Wasm::Value(bits));
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break;
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}
|
|
case Wasm::ValueType::Kind::FunctionReference: {
|
|
if (argument.is_null()) {
|
|
arguments.append(Wasm::Value(Wasm::Reference { Wasm::Reference::Null { Wasm::ValueType(Wasm::ValueType::Kind::FunctionReference) } }));
|
|
break;
|
|
}
|
|
Wasm::FunctionAddress addr = static_cast<u64>(double_value);
|
|
arguments.append(Wasm::Value(Wasm::Reference { Wasm::Reference::Func { addr, machine().store().get_module_for(addr) } }));
|
|
break;
|
|
}
|
|
case Wasm::ValueType::Kind::ExternReference:
|
|
if (argument.is_null()) {
|
|
arguments.append(Wasm::Value(Wasm::Reference { Wasm::Reference::Null { Wasm::ValueType(Wasm::ValueType::Kind::ExternReference) } }));
|
|
break;
|
|
}
|
|
arguments.append(Wasm::Value(Wasm::Reference { Wasm::Reference::Extern { static_cast<u64>(double_value) } }));
|
|
break;
|
|
}
|
|
}
|
|
|
|
auto functype = WebAssemblyModule::machine().store().get(function_address)->visit([&](auto& func) { return func.type(); });
|
|
auto result = WebAssemblyModule::machine().invoke(function_address, arguments);
|
|
if (result.is_trap())
|
|
return vm.throw_completion<JS::TypeError>(TRY_OR_THROW_OOM(vm, String::formatted("Execution trapped: {}", result.trap().reason)));
|
|
|
|
if (result.is_completion())
|
|
return result.completion();
|
|
|
|
if (result.values().is_empty())
|
|
return JS::js_null();
|
|
|
|
auto to_js_value = [&](Wasm::Value const& value, Wasm::ValueType type) {
|
|
switch (type.kind()) {
|
|
case Wasm::ValueType::I32:
|
|
return JS::Value(static_cast<double>(value.to<i32>()));
|
|
case Wasm::ValueType::I64:
|
|
return JS::Value(JS::BigInt::create(vm, Crypto::SignedBigInteger { value.to<i64>() }));
|
|
case Wasm::ValueType::F32:
|
|
return JS::Value(static_cast<double>(bit_cast<u32>(value.to<float>())));
|
|
case Wasm::ValueType::F64:
|
|
return JS::Value(JS::BigInt::create(vm, Crypto::SignedBigInteger { Crypto::UnsignedBigInteger { bit_cast<u64>(value.to<double>()) } }));
|
|
case Wasm::ValueType::V128: {
|
|
u128 val = value.to<u128>();
|
|
// FIXME: remove the MUST here
|
|
auto buf = MUST(JS::ArrayBuffer::create(*vm.current_realm(), 16));
|
|
memcpy(buf->buffer().data(), val.bytes().data(), 16);
|
|
return JS::Value(buf);
|
|
}
|
|
case Wasm::ValueType::FunctionReference:
|
|
case Wasm::ValueType::ExternReference:
|
|
return (value.to<Wasm::Reference>()).ref().visit([&](Wasm::Reference::Null) { return JS::js_null(); }, [&](auto const& ref) { return JS::Value(static_cast<double>(ref.address.value())); });
|
|
}
|
|
VERIFY_NOT_REACHED();
|
|
};
|
|
|
|
if (result.values().size() == 1)
|
|
return to_js_value(result.values().first(), functype.results().first());
|
|
|
|
size_t i = 0;
|
|
return JS::Array::create_from<Wasm::Value>(*vm.current_realm(), result.values(), [&](Wasm::Value value) {
|
|
auto value_type = type->results()[i++];
|
|
return to_js_value(value, value_type);
|
|
});
|
|
}
|