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v8/test/cctest/wasm/test-run-wasm-module.cc
Ben L. Titzer 3b64a340c7 [wasm] grow_memory(0) should detach the underlying ArrayBuffer 
The WebAssembly JS API specification [1] covers the JS-visible side-effects
of executing a grow_memory operation and states that a successful
grow operation should always detach any prior array buffer.

[1] https://github.com/WebAssembly/spec/blob/master/document/js-api/index.bs

R=mstarzinger@chromium.org,gdeepti@chromium.org

Bug: 
Change-Id: Ib9232e01209ba546c0bba1c9408c92da60ff6d92
Reviewed-on: https://chromium-review.googlesource.com/860011
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50627}
2018-01-16 19:07:59 +00:00

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// Copyright 2015 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.
#include <stdlib.h>
#include <string.h>
#include "src/api.h"
#include "src/objects-inl.h"
#include "src/snapshot/code-serializer.h"
#include "src/version.h"
#include "src/wasm/module-compiler.h"
#include "src/wasm/module-decoder.h"
#include "src/wasm/wasm-memory.h"
#include "src/wasm/wasm-module-builder.h"
#include "src/wasm/wasm-module.h"
#include "src/wasm/wasm-objects-inl.h"
#include "src/wasm/wasm-opcodes.h"
#include "test/cctest/cctest.h"
#include "test/common/wasm/flag-utils.h"
#include "test/common/wasm/test-signatures.h"
#include "test/common/wasm/wasm-macro-gen.h"
#include "test/common/wasm/wasm-module-runner.h"
namespace v8 {
namespace internal {
namespace wasm {
namespace {
void Cleanup(Isolate* isolate = nullptr) {
// By sending a low memory notifications, we will try hard to collect all
// garbage and will therefore also invoke all weak callbacks of actually
// unreachable persistent handles.
if (!isolate) {
isolate = CcTest::InitIsolateOnce();
}
reinterpret_cast<v8::Isolate*>(isolate)->LowMemoryNotification();
}
void TestModule(Zone* zone, WasmModuleBuilder* builder,
int32_t expected_result) {
ZoneBuffer buffer(zone);
builder->WriteTo(buffer);
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
testing::SetupIsolateForWasmModule(isolate);
int32_t result =
testing::CompileAndRunWasmModule(isolate, buffer.begin(), buffer.end());
CHECK_EQ(expected_result, result);
}
void TestModuleException(Zone* zone, WasmModuleBuilder* builder) {
ZoneBuffer buffer(zone);
builder->WriteTo(buffer);
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
testing::SetupIsolateForWasmModule(isolate);
v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
testing::CompileAndRunWasmModule(isolate, buffer.begin(), buffer.end());
CHECK(try_catch.HasCaught());
isolate->clear_pending_exception();
}
void ExportAsMain(WasmFunctionBuilder* f) {
f->builder()->AddExport(CStrVector("main"), f);
}
#define EMIT_CODE_WITH_END(f, code) \
do { \
f->EmitCode(code, sizeof(code)); \
f->Emit(kExprEnd); \
} while (false)
} // namespace
TEST(Run_WasmModule_Return114) {
{
static const int32_t kReturnValue = 114;
TestSignatures sigs;
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
ExportAsMain(f);
byte code[] = {WASM_I32V_2(kReturnValue)};
EMIT_CODE_WITH_END(f, code);
TestModule(&zone, builder, kReturnValue);
}
Cleanup();
}
TEST(Run_WasmModule_CallAdd) {
{
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
TestSignatures sigs;
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f1 = builder->AddFunction(sigs.i_ii());
uint16_t param1 = 0;
uint16_t param2 = 1;
byte code1[] = {
WASM_I32_ADD(WASM_GET_LOCAL(param1), WASM_GET_LOCAL(param2))};
EMIT_CODE_WITH_END(f1, code1);
WasmFunctionBuilder* f2 = builder->AddFunction(sigs.i_v());
ExportAsMain(f2);
byte code2[] = {
WASM_CALL_FUNCTION(f1->func_index(), WASM_I32V_2(77), WASM_I32V_1(22))};
EMIT_CODE_WITH_END(f2, code2);
TestModule(&zone, builder, 99);
}
Cleanup();
}
TEST(Run_WasmModule_ReadLoadedDataSegment) {
{
static const byte kDataSegmentDest0 = 12;
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
TestSignatures sigs;
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
ExportAsMain(f);
byte code[] = {
WASM_LOAD_MEM(MachineType::Int32(), WASM_I32V_1(kDataSegmentDest0))};
EMIT_CODE_WITH_END(f, code);
byte data[] = {0xAA, 0xBB, 0xCC, 0xDD};
builder->AddDataSegment(data, sizeof(data), kDataSegmentDest0);
TestModule(&zone, builder, 0xDDCCBBAA);
}
Cleanup();
}
TEST(Run_WasmModule_CheckMemoryIsZero) {
{
static const int kCheckSize = 16 * 1024;
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
TestSignatures sigs;
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
uint16_t localIndex = f->AddLocal(kWasmI32);
ExportAsMain(f);
byte code[] = {WASM_BLOCK_I(
WASM_WHILE(
WASM_I32_LTS(WASM_GET_LOCAL(localIndex), WASM_I32V_3(kCheckSize)),
WASM_IF_ELSE(
WASM_LOAD_MEM(MachineType::Int32(), WASM_GET_LOCAL(localIndex)),
WASM_BRV(3, WASM_I32V_1(-1)),
WASM_INC_LOCAL_BY(localIndex, 4))),
WASM_I32V_1(11))};
EMIT_CODE_WITH_END(f, code);
TestModule(&zone, builder, 11);
}
Cleanup();
}
TEST(Run_WasmModule_CallMain_recursive) {
{
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
TestSignatures sigs;
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
uint16_t localIndex = f->AddLocal(kWasmI32);
ExportAsMain(f);
byte code[] = {
WASM_SET_LOCAL(localIndex,
WASM_LOAD_MEM(MachineType::Int32(), WASM_ZERO)),
WASM_IF_ELSE_I(WASM_I32_LTS(WASM_GET_LOCAL(localIndex), WASM_I32V_1(5)),
WASM_SEQ(WASM_STORE_MEM(MachineType::Int32(), WASM_ZERO,
WASM_INC_LOCAL(localIndex)),
WASM_CALL_FUNCTION0(0)),
WASM_I32V_1(55))};
EMIT_CODE_WITH_END(f, code);
TestModule(&zone, builder, 55);
}
Cleanup();
}
TEST(Run_WasmModule_Global) {
{
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
TestSignatures sigs;
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
uint32_t global1 = builder->AddGlobal(kWasmI32, 0);
uint32_t global2 = builder->AddGlobal(kWasmI32, 0);
WasmFunctionBuilder* f1 = builder->AddFunction(sigs.i_v());
byte code1[] = {
WASM_I32_ADD(WASM_GET_GLOBAL(global1), WASM_GET_GLOBAL(global2))};
EMIT_CODE_WITH_END(f1, code1);
WasmFunctionBuilder* f2 = builder->AddFunction(sigs.i_v());
ExportAsMain(f2);
byte code2[] = {WASM_SET_GLOBAL(global1, WASM_I32V_1(56)),
WASM_SET_GLOBAL(global2, WASM_I32V_1(41)),
WASM_RETURN1(WASM_CALL_FUNCTION0(f1->func_index()))};
EMIT_CODE_WITH_END(f2, code2);
TestModule(&zone, builder, 97);
}
Cleanup();
}
// Approximate gtest TEST_F style, in case we adopt gtest.
class WasmSerializationTest {
public:
WasmSerializationTest() : zone_(&allocator_, ZONE_NAME) {
// Don't call here if we move to gtest.
SetUp();
}
static void BuildWireBytes(Zone* zone, ZoneBuffer* buffer) {
WasmModuleBuilder* builder = new (zone) WasmModuleBuilder(zone);
TestSignatures sigs;
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_i());
byte code[] = {WASM_GET_LOCAL(0), kExprI32Const, 1, kExprI32Add};
EMIT_CODE_WITH_END(f, code);
builder->AddExport(CStrVector(kFunctionName), f);
builder->WriteTo(*buffer);
}
void ClearSerializedData() {
serialized_bytes_.first = nullptr;
serialized_bytes_.second = 0;
}
void InvalidateVersion() {
uint32_t* slot = reinterpret_cast<uint32_t*>(
const_cast<uint8_t*>(serialized_bytes_.first) +
SerializedCodeData::kVersionHashOffset);
*slot = Version::Hash() + 1;
}
void InvalidateWireBytes() {
memset(const_cast<uint8_t*>(wire_bytes_.first), '\0',
wire_bytes_.second / 2);
}
void InvalidateLength() {
uint32_t* slot = reinterpret_cast<uint32_t*>(
const_cast<uint8_t*>(serialized_bytes_.first) +
SerializedCodeData::kPayloadLengthOffset);
*slot = FLAG_wasm_jit_to_native ? 0u : 0xFEFEFEFEu;
}
v8::MaybeLocal<v8::WasmCompiledModule> Deserialize() {
ErrorThrower thrower(current_isolate(), "");
v8::MaybeLocal<v8::WasmCompiledModule> deserialized =
v8::WasmCompiledModule::DeserializeOrCompile(
current_isolate_v8(), serialized_bytes(), wire_bytes());
return deserialized;
}
void DeserializeAndRun() {
ErrorThrower thrower(current_isolate(), "");
v8::Local<v8::WasmCompiledModule> deserialized_module;
CHECK(Deserialize().ToLocal(&deserialized_module));
Handle<WasmModuleObject> module_object = Handle<WasmModuleObject>::cast(
v8::Utils::OpenHandle(*deserialized_module));
{
DisallowHeapAllocation assume_no_gc;
Handle<WasmCompiledModule> compiled_part(module_object->compiled_module(),
current_isolate());
CHECK_EQ(
memcmp(compiled_part->shared()->module_bytes()->GetCharsAddress(),
wire_bytes().first, wire_bytes().second),
0);
}
Handle<WasmInstanceObject> instance =
SyncInstantiate(current_isolate(), &thrower, module_object,
Handle<JSReceiver>::null(),
MaybeHandle<JSArrayBuffer>())
.ToHandleChecked();
Handle<Object> params[1] = {
Handle<Object>(Smi::FromInt(41), current_isolate())};
int32_t result = testing::CallWasmFunctionForTesting(
current_isolate(), instance, &thrower, kFunctionName, 1, params);
CHECK_EQ(42, result);
}
Isolate* current_isolate() {
return reinterpret_cast<Isolate*>(current_isolate_v8_);
}
~WasmSerializationTest() {
// Don't call from here if we move to gtest
TearDown();
}
v8::Isolate* current_isolate_v8() { return current_isolate_v8_; }
private:
static const char* kFunctionName;
Zone* zone() { return &zone_; }
const v8::WasmCompiledModule::CallerOwnedBuffer& wire_bytes() const {
return wire_bytes_;
}
const v8::WasmCompiledModule::CallerOwnedBuffer& serialized_bytes() const {
return serialized_bytes_;
}
void SetUp() {
ZoneBuffer buffer(&zone_);
WasmSerializationTest::BuildWireBytes(zone(), &buffer);
Isolate* serialization_isolate = CcTest::InitIsolateOnce();
ErrorThrower thrower(serialization_isolate, "");
uint8_t* bytes = nullptr;
size_t bytes_size = 0;
{
HandleScope scope(serialization_isolate);
testing::SetupIsolateForWasmModule(serialization_isolate);
MaybeHandle<WasmModuleObject> module_object =
SyncCompile(serialization_isolate, &thrower,
ModuleWireBytes(buffer.begin(), buffer.end()));
MaybeHandle<WasmCompiledModule> compiled_module(
module_object.ToHandleChecked()->compiled_module(),
serialization_isolate);
CHECK(!compiled_module.is_null());
Handle<JSObject> module_obj = WasmModuleObject::New(
serialization_isolate, compiled_module.ToHandleChecked());
v8::Local<v8::Object> v8_module_obj = v8::Utils::ToLocal(module_obj);
CHECK(v8_module_obj->IsWebAssemblyCompiledModule());
v8::Local<v8::WasmCompiledModule> v8_compiled_module =
v8_module_obj.As<v8::WasmCompiledModule>();
v8::Local<v8::String> uncompiled_bytes =
v8_compiled_module->GetWasmWireBytes();
bytes_size = static_cast<size_t>(uncompiled_bytes->Length());
bytes = zone()->NewArray<uint8_t>(bytes_size);
uncompiled_bytes->WriteOneByte(bytes, 0, uncompiled_bytes->Length(),
v8::String::NO_NULL_TERMINATION);
// keep alive data_ until the end
data_ = v8_compiled_module->Serialize();
}
wire_bytes_ = {const_cast<const uint8_t*>(bytes), bytes_size};
serialized_bytes_ = {data_.first.get(), data_.second};
v8::Isolate::CreateParams create_params;
create_params.array_buffer_allocator =
serialization_isolate->array_buffer_allocator();
current_isolate_v8_ = v8::Isolate::New(create_params);
v8::HandleScope new_scope(current_isolate_v8());
v8::Local<v8::Context> deserialization_context =
v8::Context::New(current_isolate_v8());
deserialization_context->Enter();
testing::SetupIsolateForWasmModule(current_isolate());
}
void TearDown() {
current_isolate_v8()->Dispose();
current_isolate_v8_ = nullptr;
}
v8::internal::AccountingAllocator allocator_;
Zone zone_;
v8::WasmCompiledModule::SerializedModule data_;
v8::WasmCompiledModule::CallerOwnedBuffer wire_bytes_;
v8::WasmCompiledModule::CallerOwnedBuffer serialized_bytes_;
v8::Isolate* current_isolate_v8_;
};
const char* WasmSerializationTest::kFunctionName = "increment";
TEST(DeserializeValidModule) {
WasmSerializationTest test;
{
HandleScope scope(test.current_isolate());
test.DeserializeAndRun();
}
Cleanup(test.current_isolate());
Cleanup();
}
TEST(DeserializeMismatchingVersion) {
WasmSerializationTest test;
{
HandleScope scope(test.current_isolate());
test.InvalidateVersion();
test.DeserializeAndRun();
}
Cleanup(test.current_isolate());
Cleanup();
}
TEST(DeserializeNoSerializedData) {
WasmSerializationTest test;
{
HandleScope scope(test.current_isolate());
test.ClearSerializedData();
test.DeserializeAndRun();
}
Cleanup(test.current_isolate());
Cleanup();
}
TEST(DeserializeInvalidLength) {
WasmSerializationTest test;
{
HandleScope scope(test.current_isolate());
test.InvalidateLength();
test.DeserializeAndRun();
}
Cleanup(test.current_isolate());
Cleanup();
}
TEST(DeserializeWireBytesAndSerializedDataInvalid) {
WasmSerializationTest test;
{
HandleScope scope(test.current_isolate());
test.InvalidateVersion();
test.InvalidateWireBytes();
test.Deserialize();
}
Cleanup(test.current_isolate());
Cleanup();
}
std::unique_ptr<const uint8_t[]> CreatePayload(const uint8_t* start,
size_t size) {
uint8_t* ret = new uint8_t[size];
memcpy(ret, start, size);
return std::unique_ptr<const uint8_t[]>(const_cast<const uint8_t*>(ret));
}
TEST(ModuleBuilder) {
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
ZoneBuffer buffer(&zone);
WasmSerializationTest::BuildWireBytes(&zone, &buffer);
CHECK_GT(buffer.size(), 0);
size_t third = buffer.size() / 3;
size_t first_mark = third - 2;
size_t second_mark = buffer.size() - 2 - third;
CHECK_LT(0, first_mark);
CHECK(first_mark < second_mark);
CHECK(second_mark < buffer.size());
Isolate* i_isolate = CcTest::InitIsolateOnce();
v8::WasmModuleObjectBuilder builder(CcTest::isolate());
std::unique_ptr<const uint8_t[]> first_part =
CreatePayload(buffer.begin(), first_mark);
std::unique_ptr<const uint8_t[]> second_part =
CreatePayload(buffer.begin() + first_mark, second_mark - first_mark);
std::unique_ptr<const uint8_t[]> third_part =
CreatePayload(buffer.begin() + second_mark, buffer.size() - second_mark);
builder.OnBytesReceived(first_part.get(), first_mark);
builder.OnBytesReceived(second_part.get(), second_mark - first_mark);
builder.OnBytesReceived(third_part.get(), buffer.size() - second_mark);
{
HandleScope scope(i_isolate);
v8::MaybeLocal<v8::WasmCompiledModule> maybe_module = builder.Finish();
CHECK(!maybe_module.IsEmpty());
}
}
TEST(FailingModuleBuilder) {
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
ZoneBuffer buffer(&zone);
WasmSerializationTest::BuildWireBytes(&zone, &buffer);
CHECK_GT(buffer.size(), 0);
size_t third = buffer.size() / 3;
size_t first_mark = third - 2;
size_t second_mark = buffer.size() - 2 - third;
CHECK_LT(0, first_mark);
CHECK(first_mark < second_mark);
CHECK(second_mark < buffer.size());
Isolate* i_isolate = CcTest::InitIsolateOnce();
v8::WasmModuleObjectBuilder builder(CcTest::isolate());
std::unique_ptr<const uint8_t[]> first_part =
CreatePayload(buffer.begin(), first_mark);
builder.OnBytesReceived(first_part.get(), first_mark);
{
HandleScope scope(i_isolate);
v8::MaybeLocal<v8::WasmCompiledModule> maybe_module = builder.Finish();
CHECK(maybe_module.IsEmpty());
}
}
bool False(v8::Local<v8::Context> context, v8::Local<v8::String> source) {
return false;
}
TEST(BlockWasmCodeGenAtDeserialization) {
WasmSerializationTest test;
{
HandleScope scope(test.current_isolate());
test.current_isolate_v8()->SetAllowCodeGenerationFromStringsCallback(False);
v8::MaybeLocal<v8::WasmCompiledModule> nothing = test.Deserialize();
CHECK(nothing.IsEmpty());
}
Cleanup(test.current_isolate());
Cleanup();
}
TEST(TransferrableWasmModules) {
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
ZoneBuffer buffer(&zone);
WasmSerializationTest::BuildWireBytes(&zone, &buffer);
Isolate* from_isolate = CcTest::InitIsolateOnce();
ErrorThrower thrower(from_isolate, "");
std::vector<v8::WasmCompiledModule::TransferrableModule> store;
{
HandleScope scope(from_isolate);
testing::SetupIsolateForWasmModule(from_isolate);
MaybeHandle<WasmModuleObject> module_object = SyncCompile(
from_isolate, &thrower, ModuleWireBytes(buffer.begin(), buffer.end()));
v8::Local<v8::WasmCompiledModule> v8_module =
v8::Local<v8::WasmCompiledModule>::Cast(v8::Utils::ToLocal(
Handle<JSObject>::cast(module_object.ToHandleChecked())));
store.push_back(v8_module->GetTransferrableModule());
}
{
v8::Isolate::CreateParams create_params;
create_params.array_buffer_allocator =
from_isolate->array_buffer_allocator();
v8::Isolate* to_isolate = v8::Isolate::New(create_params);
{
v8::HandleScope new_scope(to_isolate);
v8::Local<v8::Context> deserialization_context =
v8::Context::New(to_isolate);
deserialization_context->Enter();
v8::MaybeLocal<v8::WasmCompiledModule> mod =
v8::WasmCompiledModule::FromTransferrableModule(to_isolate, store[0]);
CHECK(!mod.IsEmpty());
}
to_isolate->Dispose();
}
}
TEST(MemorySize) {
{
// Initial memory size is 16, see wasm-module-builder.cc
static const int kExpectedValue = 16;
TestSignatures sigs;
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
ExportAsMain(f);
byte code[] = {WASM_MEMORY_SIZE};
EMIT_CODE_WITH_END(f, code);
TestModule(&zone, builder, kExpectedValue);
}
Cleanup();
}
TEST(Run_WasmModule_MemSize_GrowMem) {
{
// Initial memory size = 16 + GrowMemory(10)
static const int kExpectedValue = 26;
TestSignatures sigs;
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
ExportAsMain(f);
byte code[] = {WASM_GROW_MEMORY(WASM_I32V_1(10)), WASM_DROP,
WASM_MEMORY_SIZE};
EMIT_CODE_WITH_END(f, code);
TestModule(&zone, builder, kExpectedValue);
}
Cleanup();
}
TEST(GrowMemoryZero) {
{
// Initial memory size is 16, see wasm-module-builder.cc
static const int kExpectedValue = 16;
TestSignatures sigs;
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
ExportAsMain(f);
byte code[] = {WASM_GROW_MEMORY(WASM_I32V(0))};
EMIT_CODE_WITH_END(f, code);
TestModule(&zone, builder, kExpectedValue);
}
Cleanup();
}
class InterruptThread : public v8::base::Thread {
public:
explicit InterruptThread(Isolate* isolate, int32_t* memory)
: Thread(Options("TestInterruptLoop")),
isolate_(isolate),
memory_(memory) {}
static void OnInterrupt(v8::Isolate* isolate, void* data) {
int32_t* m = reinterpret_cast<int32_t*>(data);
// Set the interrupt location to 0 to break the loop in {TestInterruptLoop}.
int32_t* ptr = &m[interrupt_location_];
WriteLittleEndianValue<int32_t>(ptr, interrupt_value_);
}
virtual void Run() {
// Wait for the main thread to write the signal value.
int32_t val = 0;
do {
val = memory_[0];
val = ReadLittleEndianValue<int32_t>(&val);
} while (val != signal_value_);
isolate_->RequestInterrupt(&OnInterrupt, const_cast<int32_t*>(memory_));
}
Isolate* isolate_;
volatile int32_t* memory_;
static const int32_t interrupt_location_ = 10;
static const int32_t interrupt_value_ = 154;
static const int32_t signal_value_ = 1221;
};
TEST(TestInterruptLoop) {
{
// Do not dump the module of this test because it contains an infinite loop.
if (FLAG_dump_wasm_module) return;
// This test tests that WebAssembly loops can be interrupted, i.e. that if
// an
// InterruptCallback is registered by {Isolate::RequestInterrupt}, then the
// InterruptCallback is eventually called even if a loop in WebAssembly code
// is executed.
// Test setup:
// The main thread executes a WebAssembly function with a loop. In the loop
// {signal_value_} is written to memory to signal a helper thread that the
// main thread reached the loop in the WebAssembly program. When the helper
// thread reads {signal_value_} from memory, it registers the
// InterruptCallback. Upon exeution, the InterruptCallback write into the
// WebAssemblyMemory to end the loop in the WebAssembly program.
TestSignatures sigs;
Isolate* isolate = CcTest::InitIsolateOnce();
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
ExportAsMain(f);
byte code[] = {
WASM_LOOP(
WASM_IFB(WASM_NOT(WASM_LOAD_MEM(
MachineType::Int32(),
WASM_I32V(InterruptThread::interrupt_location_ * 4))),
WASM_STORE_MEM(MachineType::Int32(), WASM_ZERO,
WASM_I32V(InterruptThread::signal_value_)),
WASM_BR(1))),
WASM_I32V(121)};
EMIT_CODE_WITH_END(f, code);
ZoneBuffer buffer(&zone);
builder->WriteTo(buffer);
HandleScope scope(isolate);
testing::SetupIsolateForWasmModule(isolate);
ErrorThrower thrower(isolate, "Test");
const Handle<WasmInstanceObject> instance =
SyncCompileAndInstantiate(isolate, &thrower,
ModuleWireBytes(buffer.begin(), buffer.end()),
{}, {})
.ToHandleChecked();
Handle<JSArrayBuffer> memory(instance->memory_object()->array_buffer(),
isolate);
int32_t* memory_array = reinterpret_cast<int32_t*>(memory->backing_store());
InterruptThread thread(isolate, memory_array);
thread.Start();
testing::RunWasmModuleForTesting(isolate, instance, 0, nullptr);
int32_t val = memory_array[InterruptThread::interrupt_location_];
CHECK_EQ(InterruptThread::interrupt_value_,
ReadLittleEndianValue<int32_t>(&val));
}
Cleanup();
}
TEST(Run_WasmModule_GrowMemoryInIf) {
{
TestSignatures sigs;
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
ExportAsMain(f);
byte code[] = {WASM_IF_ELSE_I(WASM_I32V(0), WASM_GROW_MEMORY(WASM_I32V(1)),
WASM_I32V(12))};
EMIT_CODE_WITH_END(f, code);
TestModule(&zone, builder, 12);
}
Cleanup();
}
TEST(Run_WasmModule_GrowMemOobOffset) {
{
static const int kPageSize = 0x10000;
// Initial memory size = 16 + GrowMemory(10)
static const int index = kPageSize * 17 + 4;
int value = 0xACED;
TestSignatures sigs;
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
ExportAsMain(f);
byte code[] = {WASM_GROW_MEMORY(WASM_I32V_1(1)),
WASM_STORE_MEM(MachineType::Int32(), WASM_I32V(index),
WASM_I32V(value))};
EMIT_CODE_WITH_END(f, code);
TestModuleException(&zone, builder);
}
Cleanup();
}
TEST(Run_WasmModule_GrowMemOobFixedIndex) {
{
static const int kPageSize = 0x10000;
// Initial memory size = 16 + GrowMemory(10)
static const int index = kPageSize * 26 + 4;
int value = 0xACED;
TestSignatures sigs;
Isolate* isolate = CcTest::InitIsolateOnce();
Zone zone(isolate->allocator(), ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_i());
ExportAsMain(f);
byte code[] = {WASM_GROW_MEMORY(WASM_GET_LOCAL(0)), WASM_DROP,
WASM_STORE_MEM(MachineType::Int32(), WASM_I32V(index),
WASM_I32V(value)),
WASM_LOAD_MEM(MachineType::Int32(), WASM_I32V(index))};
EMIT_CODE_WITH_END(f, code);
HandleScope scope(isolate);
ZoneBuffer buffer(&zone);
builder->WriteTo(buffer);
testing::SetupIsolateForWasmModule(isolate);
ErrorThrower thrower(isolate, "Test");
Handle<WasmInstanceObject> instance =
SyncCompileAndInstantiate(isolate, &thrower,
ModuleWireBytes(buffer.begin(), buffer.end()),
{}, {})
.ToHandleChecked();
// Initial memory size is 16 pages, should trap till index > MemSize on
// consecutive GrowMem calls
for (uint32_t i = 1; i < 5; i++) {
Handle<Object> params[1] = {Handle<Object>(Smi::FromInt(i), isolate)};
v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
testing::RunWasmModuleForTesting(isolate, instance, 1, params);
CHECK(try_catch.HasCaught());
isolate->clear_pending_exception();
}
Handle<Object> params[1] = {Handle<Object>(Smi::FromInt(1), isolate)};
int32_t result =
testing::RunWasmModuleForTesting(isolate, instance, 1, params);
CHECK_EQ(0xACED, result);
}
Cleanup();
}
TEST(Run_WasmModule_GrowMemOobVariableIndex) {
{
static const int kPageSize = 0x10000;
int value = 0xACED;
TestSignatures sigs;
Isolate* isolate = CcTest::InitIsolateOnce();
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_i());
ExportAsMain(f);
byte code[] = {WASM_GROW_MEMORY(WASM_I32V_1(1)), WASM_DROP,
WASM_STORE_MEM(MachineType::Int32(), WASM_GET_LOCAL(0),
WASM_I32V(value)),
WASM_LOAD_MEM(MachineType::Int32(), WASM_GET_LOCAL(0))};
EMIT_CODE_WITH_END(f, code);
HandleScope scope(isolate);
ZoneBuffer buffer(&zone);
builder->WriteTo(buffer);
testing::SetupIsolateForWasmModule(isolate);
ErrorThrower thrower(isolate, "Test");
Handle<WasmInstanceObject> instance =
SyncCompileAndInstantiate(isolate, &thrower,
ModuleWireBytes(buffer.begin(), buffer.end()),
{}, {})
.ToHandleChecked();
// Initial memory size is 16 pages, should trap till index > MemSize on
// consecutive GrowMem calls
for (int i = 1; i < 5; i++) {
Handle<Object> params[1] = {
Handle<Object>(Smi::FromInt((16 + i) * kPageSize - 3), isolate)};
v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
testing::RunWasmModuleForTesting(isolate, instance, 1, params);
CHECK(try_catch.HasCaught());
isolate->clear_pending_exception();
}
for (int i = 1; i < 5; i++) {
Handle<Object> params[1] = {
Handle<Object>(Smi::FromInt((20 + i) * kPageSize - 4), isolate)};
int32_t result =
testing::RunWasmModuleForTesting(isolate, instance, 1, params);
CHECK_EQ(0xACED, result);
}
v8::TryCatch try_catch(reinterpret_cast<v8::Isolate*>(isolate));
Handle<Object> params[1] = {
Handle<Object>(Smi::FromInt(25 * kPageSize), isolate)};
testing::RunWasmModuleForTesting(isolate, instance, 1, params);
CHECK(try_catch.HasCaught());
isolate->clear_pending_exception();
}
Cleanup();
}
TEST(Run_WasmModule_Global_init) {
{
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
TestSignatures sigs;
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
uint32_t global1 =
builder->AddGlobal(kWasmI32, false, false, WasmInitExpr(777777));
uint32_t global2 =
builder->AddGlobal(kWasmI32, false, false, WasmInitExpr(222222));
WasmFunctionBuilder* f1 = builder->AddFunction(sigs.i_v());
byte code[] = {
WASM_I32_ADD(WASM_GET_GLOBAL(global1), WASM_GET_GLOBAL(global2))};
EMIT_CODE_WITH_END(f1, code);
ExportAsMain(f1);
TestModule(&zone, builder, 999999);
}
Cleanup();
}
template <typename CType>
static void RunWasmModuleGlobalInitTest(ValueType type, CType expected) {
{
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
TestSignatures sigs;
ValueType types[] = {type};
FunctionSig sig(1, 0, types);
for (int padding = 0; padding < 5; padding++) {
// Test with a simple initializer
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
for (int i = 0; i < padding; i++) { // pad global before
builder->AddGlobal(kWasmI32, false, false, WasmInitExpr(i + 20000));
}
uint32_t global =
builder->AddGlobal(type, false, false, WasmInitExpr(expected));
for (int i = 0; i < padding; i++) { // pad global after
builder->AddGlobal(kWasmI32, false, false, WasmInitExpr(i + 30000));
}
WasmFunctionBuilder* f1 = builder->AddFunction(&sig);
byte code[] = {WASM_GET_GLOBAL(global)};
EMIT_CODE_WITH_END(f1, code);
ExportAsMain(f1);
TestModule(&zone, builder, expected);
}
}
Cleanup();
}
TEST(Run_WasmModule_Global_i32) {
RunWasmModuleGlobalInitTest<int32_t>(kWasmI32, -983489);
RunWasmModuleGlobalInitTest<int32_t>(kWasmI32, 11223344);
}
TEST(Run_WasmModule_Global_f32) {
RunWasmModuleGlobalInitTest<float>(kWasmF32, -983.9f);
RunWasmModuleGlobalInitTest<float>(kWasmF32, 1122.99f);
}
TEST(Run_WasmModule_Global_f64) {
RunWasmModuleGlobalInitTest<double>(kWasmF64, -833.9);
RunWasmModuleGlobalInitTest<double>(kWasmF64, 86374.25);
}
TEST(InitDataAtTheUpperLimit) {
{
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
testing::SetupIsolateForWasmModule(isolate);
ErrorThrower thrower(isolate, "Run_WasmModule_InitDataAtTheUpperLimit");
const byte data[] = {
WASM_MODULE_HEADER, // --
kMemorySectionCode, // --
U32V_1(4), // section size
ENTRY_COUNT(1), // --
kHasMaximumFlag, // --
1, // initial size
2, // maximum size
kDataSectionCode, // --
U32V_1(9), // section size
ENTRY_COUNT(1), // --
0, // linear memory index
WASM_I32V_3(0xFFFF), // destination offset
kExprEnd,
U32V_1(1), // source size
'c' // data bytes
};
SyncCompileAndInstantiate(isolate, &thrower,
ModuleWireBytes(data, data + arraysize(data)), {},
{});
if (thrower.error()) {
thrower.Reify()->Print();
FATAL("compile or instantiate error");
}
}
Cleanup();
}
TEST(EmptyMemoryNonEmptyDataSegment) {
{
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
testing::SetupIsolateForWasmModule(isolate);
ErrorThrower thrower(isolate, "Run_WasmModule_InitDataAtTheUpperLimit");
const byte data[] = {
WASM_MODULE_HEADER, // --
kMemorySectionCode, // --
U32V_1(4), // section size
ENTRY_COUNT(1), // --
kHasMaximumFlag, // --
0, // initial size
0, // maximum size
kDataSectionCode, // --
U32V_1(7), // section size
ENTRY_COUNT(1), // --
0, // linear memory index
WASM_I32V_1(8), // destination offset
kExprEnd,
U32V_1(1), // source size
'c' // data bytes
};
SyncCompileAndInstantiate(isolate, &thrower,
ModuleWireBytes(data, data + arraysize(data)), {},
{});
// It should not be possible to instantiate this module.
CHECK(thrower.error());
}
Cleanup();
}
TEST(EmptyMemoryEmptyDataSegment) {
{
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
testing::SetupIsolateForWasmModule(isolate);
ErrorThrower thrower(isolate, "Run_WasmModule_InitDataAtTheUpperLimit");
const byte data[] = {
WASM_MODULE_HEADER, // --
kMemorySectionCode, // --
U32V_1(4), // section size
ENTRY_COUNT(1), // --
kHasMaximumFlag, // --
0, // initial size
0, // maximum size
kDataSectionCode, // --
U32V_1(6), // section size
ENTRY_COUNT(1), // --
0, // linear memory index
WASM_I32V_1(0), // destination offset
kExprEnd,
U32V_1(0), // source size
};
SyncCompileAndInstantiate(isolate, &thrower,
ModuleWireBytes(data, data + arraysize(data)), {},
{});
// It should be possible to instantiate this module.
CHECK(!thrower.error());
}
Cleanup();
}
TEST(MemoryWithOOBEmptyDataSegment) {
{
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
testing::SetupIsolateForWasmModule(isolate);
ErrorThrower thrower(isolate, "Run_WasmModule_InitDataAtTheUpperLimit");
const byte data[] = {
WASM_MODULE_HEADER, // --
kMemorySectionCode, // --
U32V_1(4), // section size
ENTRY_COUNT(1), // --
kHasMaximumFlag, // --
1, // initial size
1, // maximum size
kDataSectionCode, // --
U32V_1(9), // section size
ENTRY_COUNT(1), // --
0, // linear memory index
WASM_I32V_4(0x2468ACE), // destination offset
kExprEnd,
U32V_1(0), // source size
};
SyncCompileAndInstantiate(isolate, &thrower,
ModuleWireBytes(data, data + arraysize(data)), {},
{});
// It should not be possible to instantiate this module.
CHECK(thrower.error());
}
Cleanup();
}
// Utility to free the allocated memory for a buffer that is manually
// externalized in a test.
struct ManuallyExternalizedBuffer {
Isolate* isolate_;
Handle<JSArrayBuffer> buffer_;
void* allocation_base_;
size_t allocation_length_;
ManuallyExternalizedBuffer(JSArrayBuffer* buffer, Isolate* isolate)
: isolate_(isolate),
buffer_(buffer, isolate),
allocation_base_(buffer->allocation_base()),
allocation_length_(buffer->allocation_length()) {
if (!buffer->has_guard_region()) {
v8::Utils::ToLocal(buffer_)->Externalize();
}
}
~ManuallyExternalizedBuffer() {
if (!buffer_->has_guard_region()) {
isolate_->array_buffer_allocator()->Free(
allocation_base_, allocation_length_, buffer_->allocation_mode());
}
}
};
TEST(Run_WasmModule_Buffer_Externalized_GrowMem) {
{
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
TestSignatures sigs;
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_v());
ExportAsMain(f);
byte code[] = {WASM_GROW_MEMORY(WASM_I32V_1(6)), WASM_DROP,
WASM_MEMORY_SIZE};
EMIT_CODE_WITH_END(f, code);
ZoneBuffer buffer(&zone);
builder->WriteTo(buffer);
testing::SetupIsolateForWasmModule(isolate);
ErrorThrower thrower(isolate, "Test");
const Handle<WasmInstanceObject> instance =
SyncCompileAndInstantiate(isolate, &thrower,
ModuleWireBytes(buffer.begin(), buffer.end()),
{}, {})
.ToHandleChecked();
Handle<WasmMemoryObject> memory_object(instance->memory_object(), isolate);
// Fake the Embedder flow by externalizing the array buffer.
ManuallyExternalizedBuffer buffer1(memory_object->array_buffer(), isolate);
// Grow using the API.
uint32_t result = WasmMemoryObject::Grow(isolate, memory_object, 4);
CHECK_EQ(16, result);
CHECK(buffer1.buffer_->was_neutered()); // growing always neuters
CHECK_EQ(0, buffer1.buffer_->byte_length()->Number());
CHECK_NE(*buffer1.buffer_, memory_object->array_buffer());
// Fake the Embedder flow by externalizing the array buffer.
ManuallyExternalizedBuffer buffer2(memory_object->array_buffer(), isolate);
// Grow using an internal WASM bytecode.
result = testing::RunWasmModuleForTesting(isolate, instance, 0, nullptr);
CHECK_EQ(26, result);
CHECK(buffer2.buffer_->was_neutered()); // growing always neuters
CHECK_EQ(0, buffer2.buffer_->byte_length()->Number());
CHECK_NE(*buffer2.buffer_, memory_object->array_buffer());
}
Cleanup();
}
TEST(Run_WasmModule_Buffer_Externalized_GrowMemMemSize) {
{
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
void* backing_store =
isolate->array_buffer_allocator()->Allocate(16 * kWasmPageSize);
Handle<JSArrayBuffer> buffer =
wasm::SetupArrayBuffer(isolate, backing_store, 16 * kWasmPageSize,
backing_store, 16 * kWasmPageSize, false, false);
Handle<WasmMemoryObject> mem_obj =
WasmMemoryObject::New(isolate, buffer, 100);
v8::Utils::ToLocal(buffer)->Externalize();
int32_t result = WasmMemoryObject::Grow(isolate, mem_obj, 0);
CHECK_EQ(16, result);
isolate->array_buffer_allocator()->Free(backing_store, 16 * kWasmPageSize);
}
Cleanup();
}
TEST(Run_WasmModule_Buffer_Externalized_Detach) {
{
// Regression test for
// https://bugs.chromium.org/p/chromium/issues/detail?id=731046
Isolate* isolate = CcTest::InitIsolateOnce();
HandleScope scope(isolate);
void* backing_store =
isolate->array_buffer_allocator()->Allocate(16 * kWasmPageSize);
Handle<JSArrayBuffer> buffer =
wasm::SetupArrayBuffer(isolate, backing_store, 16 * kWasmPageSize,
backing_store, 16 * kWasmPageSize, false, false);
v8::Utils::ToLocal(buffer)->Externalize();
wasm::DetachMemoryBuffer(isolate, buffer, true);
isolate->array_buffer_allocator()->Free(backing_store, 16 * kWasmPageSize);
}
Cleanup();
}
TEST(AtomicOpDisassembly) {
{
EXPERIMENTAL_FLAG_SCOPE(threads);
TestSignatures sigs;
Isolate* isolate = CcTest::InitIsolateOnce();
v8::internal::AccountingAllocator allocator;
Zone zone(&allocator, ZONE_NAME);
WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
builder->SetHasSharedMemory();
builder->SetMaxMemorySize(16);
WasmFunctionBuilder* f = builder->AddFunction(sigs.i_i());
ExportAsMain(f);
byte code[] = {
WASM_ATOMICS_STORE_OP(kExprI32AtomicStore, WASM_ZERO, WASM_GET_LOCAL(0),
MachineRepresentation::kWord32),
WASM_ATOMICS_LOAD_OP(kExprI32AtomicLoad, WASM_ZERO,
MachineRepresentation::kWord32)};
EMIT_CODE_WITH_END(f, code);
HandleScope scope(isolate);
ZoneBuffer buffer(&zone);
builder->WriteTo(buffer);
testing::SetupIsolateForWasmModule(isolate);
ErrorThrower thrower(isolate, "Test");
MaybeHandle<WasmModuleObject> module_object = SyncCompile(
isolate, &thrower, ModuleWireBytes(buffer.begin(), buffer.end()));
Handle<WasmCompiledModule> compiled_module(
module_object.ToHandleChecked()->compiled_module(), isolate);
compiled_module->shared()->DisassembleFunction(0);
}
Cleanup();
}
#undef EMIT_CODE_WITH_END
} // namespace wasm
} // namespace internal
} // namespace v8
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