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aosp12/art/runtime/transaction_test.cc

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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "transaction.h"
#include "art_field-inl.h"
#include "art_method-inl.h"
#include "class_linker-inl.h"
#include "common_runtime_test.h"
#include "dex/dex_file.h"
#include "mirror/array-alloc-inl.h"
#include "mirror/class-alloc-inl.h"
#include "scoped_thread_state_change-inl.h"
namespace art {
class TransactionTest : public CommonRuntimeTest {
protected:
void SetUpRuntimeOptions(/*out*/RuntimeOptions* options) override {
// Set up the image location.
options->emplace_back("-Ximage:" + GetImageLocation(), nullptr);
}
// Tests failing class initialization due to native call with transaction rollback.
void testTransactionAbort(const char* tested_class_signature) {
ScopedObjectAccess soa(Thread::Current());
jobject jclass_loader = LoadDex("Transaction");
StackHandleScope<2> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader(
hs.NewHandle(soa.Decode<mirror::ClassLoader>(jclass_loader)));
ASSERT_TRUE(class_loader != nullptr);
// Load and initialize java.lang.ExceptionInInitializerError and the exception class used
// to abort transaction so they can be thrown during class initialization if the transaction
// aborts.
MutableHandle<mirror::Class> h_klass(
hs.NewHandle(class_linker_->FindSystemClass(soa.Self(),
"Ljava/lang/ExceptionInInitializerError;")));
ASSERT_TRUE(h_klass != nullptr);
class_linker_->EnsureInitialized(soa.Self(), h_klass, true, true);
ASSERT_TRUE(h_klass->IsInitialized());
h_klass.Assign(class_linker_->FindSystemClass(soa.Self(),
Transaction::kAbortExceptionDescriptor));
ASSERT_TRUE(h_klass != nullptr);
class_linker_->EnsureInitialized(soa.Self(), h_klass, true, true);
ASSERT_TRUE(h_klass->IsInitialized());
// Load and verify utility class.
h_klass.Assign(class_linker_->FindClass(soa.Self(), "LTransaction$AbortHelperClass;",
class_loader));
ASSERT_TRUE(h_klass != nullptr);
class_linker_->VerifyClass(soa.Self(), /* verifier_deps= */ nullptr, h_klass);
ASSERT_TRUE(h_klass->IsVerified());
// Load and verify tested class.
h_klass.Assign(class_linker_->FindClass(soa.Self(), tested_class_signature, class_loader));
ASSERT_TRUE(h_klass != nullptr);
class_linker_->VerifyClass(soa.Self(), /* verifier_deps= */ nullptr, h_klass);
ASSERT_TRUE(h_klass->IsVerified());
ClassStatus old_status = h_klass->GetStatus();
LockWord old_lock_word = h_klass->GetLockWord(false);
EnterTransactionMode();
bool success = class_linker_->EnsureInitialized(soa.Self(), h_klass, true, true);
ASSERT_TRUE(IsTransactionAborted());
ASSERT_FALSE(success);
ASSERT_TRUE(h_klass->IsErroneous());
ASSERT_TRUE(soa.Self()->IsExceptionPending());
// Check class's monitor get back to its original state without rolling back changes.
LockWord new_lock_word = h_klass->GetLockWord(false);
EXPECT_TRUE(LockWord::Equal<false>(old_lock_word, new_lock_word));
// Check class status is rolled back properly.
soa.Self()->ClearException();
RollbackAndExitTransactionMode();
ASSERT_EQ(old_status, h_klass->GetStatus());
}
};
// Tests object's class is preserved after transaction rollback.
TEST_F(TransactionTest, Object_class) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<2> hs(soa.Self());
Handle<mirror::Class> h_klass(
hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;")));
ASSERT_TRUE(h_klass != nullptr);
EnterTransactionMode();
Handle<mirror::Object> h_obj(hs.NewHandle(h_klass->AllocObject(soa.Self())));
ASSERT_TRUE(h_obj != nullptr);
ASSERT_OBJ_PTR_EQ(h_obj->GetClass(), h_klass.Get());
// Rolling back transaction's changes must not clear the Object::class field.
RollbackAndExitTransactionMode();
EXPECT_OBJ_PTR_EQ(h_obj->GetClass(), h_klass.Get());
}
// Tests object's monitor state is preserved after transaction rollback.
TEST_F(TransactionTest, Object_monitor) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<2> hs(soa.Self());
Handle<mirror::Class> h_klass(
hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;")));
ASSERT_TRUE(h_klass != nullptr);
Handle<mirror::Object> h_obj(hs.NewHandle(h_klass->AllocObject(soa.Self())));
ASSERT_TRUE(h_obj != nullptr);
ASSERT_OBJ_PTR_EQ(h_obj->GetClass(), h_klass.Get());
// Lock object's monitor outside the transaction.
h_obj->MonitorEnter(soa.Self());
LockWord old_lock_word = h_obj->GetLockWord(false);
EnterTransactionMode();
// Unlock object's monitor inside the transaction.
h_obj->MonitorExit(soa.Self());
LockWord new_lock_word = h_obj->GetLockWord(false);
// Rolling back transaction's changes must not change monitor's state.
RollbackAndExitTransactionMode();
LockWord aborted_lock_word = h_obj->GetLockWord(false);
EXPECT_FALSE(LockWord::Equal<false>(old_lock_word, new_lock_word));
EXPECT_TRUE(LockWord::Equal<false>(aborted_lock_word, new_lock_word));
}
// Tests array's length is preserved after transaction rollback.
TEST_F(TransactionTest, Array_length) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<2> hs(soa.Self());
Handle<mirror::Class> h_klass(
hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;")));
ASSERT_TRUE(h_klass != nullptr);
constexpr int32_t kArraySize = 2;
EnterTransactionMode();
// Allocate an array during transaction.
Handle<mirror::Array> h_obj = hs.NewHandle(
mirror::Array::Alloc(soa.Self(),
h_klass.Get(),
kArraySize,
h_klass->GetComponentSizeShift(),
Runtime::Current()->GetHeap()->GetCurrentAllocator()));
ASSERT_TRUE(h_obj != nullptr);
ASSERT_OBJ_PTR_EQ(h_obj->GetClass(), h_klass.Get());
RollbackAndExitTransactionMode();
// Rolling back transaction's changes must not reset array's length.
EXPECT_EQ(h_obj->GetLength(), kArraySize);
}
// Tests static fields are reset to their default value after transaction rollback.
TEST_F(TransactionTest, StaticFieldsTest) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<4> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader(
hs.NewHandle(soa.Decode<mirror::ClassLoader>(LoadDex("Transaction"))));
ASSERT_TRUE(class_loader != nullptr);
Handle<mirror::Class> h_klass(
hs.NewHandle(class_linker_->FindClass(soa.Self(), "LStaticFieldsTest;", class_loader)));
ASSERT_TRUE(h_klass != nullptr);
bool success = class_linker_->EnsureInitialized(soa.Self(), h_klass, true, true);
ASSERT_TRUE(success);
ASSERT_TRUE(h_klass->IsInitialized());
ASSERT_FALSE(soa.Self()->IsExceptionPending());
// Lookup fields.
ArtField* booleanField = h_klass->FindDeclaredStaticField("booleanField", "Z");
ASSERT_TRUE(booleanField != nullptr);
ASSERT_EQ(booleanField->GetTypeAsPrimitiveType(), Primitive::kPrimBoolean);
ASSERT_EQ(booleanField->GetBoolean(h_klass.Get()), false);
ArtField* byteField = h_klass->FindDeclaredStaticField("byteField", "B");
ASSERT_TRUE(byteField != nullptr);
ASSERT_EQ(byteField->GetTypeAsPrimitiveType(), Primitive::kPrimByte);
ASSERT_EQ(byteField->GetByte(h_klass.Get()), 0);
ArtField* charField = h_klass->FindDeclaredStaticField("charField", "C");
ASSERT_TRUE(charField != nullptr);
ASSERT_EQ(charField->GetTypeAsPrimitiveType(), Primitive::kPrimChar);
ASSERT_EQ(charField->GetChar(h_klass.Get()), 0u);
ArtField* shortField = h_klass->FindDeclaredStaticField("shortField", "S");
ASSERT_TRUE(shortField != nullptr);
ASSERT_EQ(shortField->GetTypeAsPrimitiveType(), Primitive::kPrimShort);
ASSERT_EQ(shortField->GetShort(h_klass.Get()), 0);
ArtField* intField = h_klass->FindDeclaredStaticField("intField", "I");
ASSERT_TRUE(intField != nullptr);
ASSERT_EQ(intField->GetTypeAsPrimitiveType(), Primitive::kPrimInt);
ASSERT_EQ(intField->GetInt(h_klass.Get()), 0);
ArtField* longField = h_klass->FindDeclaredStaticField("longField", "J");
ASSERT_TRUE(longField != nullptr);
ASSERT_EQ(longField->GetTypeAsPrimitiveType(), Primitive::kPrimLong);
ASSERT_EQ(longField->GetLong(h_klass.Get()), static_cast<int64_t>(0));
ArtField* floatField = h_klass->FindDeclaredStaticField("floatField", "F");
ASSERT_TRUE(floatField != nullptr);
ASSERT_EQ(floatField->GetTypeAsPrimitiveType(), Primitive::kPrimFloat);
ASSERT_FLOAT_EQ(floatField->GetFloat(h_klass.Get()), static_cast<float>(0.0f));
ArtField* doubleField = h_klass->FindDeclaredStaticField("doubleField", "D");
ASSERT_TRUE(doubleField != nullptr);
ASSERT_EQ(doubleField->GetTypeAsPrimitiveType(), Primitive::kPrimDouble);
ASSERT_DOUBLE_EQ(doubleField->GetDouble(h_klass.Get()), static_cast<double>(0.0));
ArtField* objectField = h_klass->FindDeclaredStaticField("objectField",
"Ljava/lang/Object;");
ASSERT_TRUE(objectField != nullptr);
ASSERT_EQ(objectField->GetTypeAsPrimitiveType(), Primitive::kPrimNot);
ASSERT_EQ(objectField->GetObject(h_klass.Get()), nullptr);
// Create a java.lang.Object instance to set objectField.
Handle<mirror::Class> object_klass(
hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;")));
ASSERT_TRUE(object_klass != nullptr);
Handle<mirror::Object> h_obj(hs.NewHandle(h_klass->AllocObject(soa.Self())));
ASSERT_TRUE(h_obj != nullptr);
ASSERT_OBJ_PTR_EQ(h_obj->GetClass(), h_klass.Get());
// Modify fields inside transaction then rollback changes.
EnterTransactionMode();
booleanField->SetBoolean<true>(h_klass.Get(), true);
byteField->SetByte<true>(h_klass.Get(), 1);
charField->SetChar<true>(h_klass.Get(), 1u);
shortField->SetShort<true>(h_klass.Get(), 1);
intField->SetInt<true>(h_klass.Get(), 1);
longField->SetLong<true>(h_klass.Get(), 1);
floatField->SetFloat<true>(h_klass.Get(), 1.0);
doubleField->SetDouble<true>(h_klass.Get(), 1.0);
objectField->SetObject<true>(h_klass.Get(), h_obj.Get());
RollbackAndExitTransactionMode();
// Check values have properly been restored to their original (default) value.
EXPECT_EQ(booleanField->GetBoolean(h_klass.Get()), false);
EXPECT_EQ(byteField->GetByte(h_klass.Get()), 0);
EXPECT_EQ(charField->GetChar(h_klass.Get()), 0u);
EXPECT_EQ(shortField->GetShort(h_klass.Get()), 0);
EXPECT_EQ(intField->GetInt(h_klass.Get()), 0);
EXPECT_EQ(longField->GetLong(h_klass.Get()), static_cast<int64_t>(0));
EXPECT_FLOAT_EQ(floatField->GetFloat(h_klass.Get()), static_cast<float>(0.0f));
EXPECT_DOUBLE_EQ(doubleField->GetDouble(h_klass.Get()), static_cast<double>(0.0));
EXPECT_EQ(objectField->GetObject(h_klass.Get()), nullptr);
}
// Tests instance fields are reset to their default value after transaction rollback.
TEST_F(TransactionTest, InstanceFieldsTest) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<5> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader(
hs.NewHandle(soa.Decode<mirror::ClassLoader>(LoadDex("Transaction"))));
ASSERT_TRUE(class_loader != nullptr);
Handle<mirror::Class> h_klass(
hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInstanceFieldsTest;", class_loader)));
ASSERT_TRUE(h_klass != nullptr);
bool success = class_linker_->EnsureInitialized(soa.Self(), h_klass, true, true);
ASSERT_TRUE(success);
ASSERT_TRUE(h_klass->IsInitialized());
ASSERT_FALSE(soa.Self()->IsExceptionPending());
// Allocate an InstanceFieldTest object.
Handle<mirror::Object> h_instance(hs.NewHandle(h_klass->AllocObject(soa.Self())));
ASSERT_TRUE(h_instance != nullptr);
// Lookup fields.
ArtField* booleanField = h_klass->FindDeclaredInstanceField("booleanField", "Z");
ASSERT_TRUE(booleanField != nullptr);
ASSERT_EQ(booleanField->GetTypeAsPrimitiveType(), Primitive::kPrimBoolean);
ASSERT_EQ(booleanField->GetBoolean(h_instance.Get()), false);
ArtField* byteField = h_klass->FindDeclaredInstanceField("byteField", "B");
ASSERT_TRUE(byteField != nullptr);
ASSERT_EQ(byteField->GetTypeAsPrimitiveType(), Primitive::kPrimByte);
ASSERT_EQ(byteField->GetByte(h_instance.Get()), 0);
ArtField* charField = h_klass->FindDeclaredInstanceField("charField", "C");
ASSERT_TRUE(charField != nullptr);
ASSERT_EQ(charField->GetTypeAsPrimitiveType(), Primitive::kPrimChar);
ASSERT_EQ(charField->GetChar(h_instance.Get()), 0u);
ArtField* shortField = h_klass->FindDeclaredInstanceField("shortField", "S");
ASSERT_TRUE(shortField != nullptr);
ASSERT_EQ(shortField->GetTypeAsPrimitiveType(), Primitive::kPrimShort);
ASSERT_EQ(shortField->GetShort(h_instance.Get()), 0);
ArtField* intField = h_klass->FindDeclaredInstanceField("intField", "I");
ASSERT_TRUE(intField != nullptr);
ASSERT_EQ(intField->GetTypeAsPrimitiveType(), Primitive::kPrimInt);
ASSERT_EQ(intField->GetInt(h_instance.Get()), 0);
ArtField* longField = h_klass->FindDeclaredInstanceField("longField", "J");
ASSERT_TRUE(longField != nullptr);
ASSERT_EQ(longField->GetTypeAsPrimitiveType(), Primitive::kPrimLong);
ASSERT_EQ(longField->GetLong(h_instance.Get()), static_cast<int64_t>(0));
ArtField* floatField = h_klass->FindDeclaredInstanceField("floatField", "F");
ASSERT_TRUE(floatField != nullptr);
ASSERT_EQ(floatField->GetTypeAsPrimitiveType(), Primitive::kPrimFloat);
ASSERT_FLOAT_EQ(floatField->GetFloat(h_instance.Get()), static_cast<float>(0.0f));
ArtField* doubleField = h_klass->FindDeclaredInstanceField("doubleField", "D");
ASSERT_TRUE(doubleField != nullptr);
ASSERT_EQ(doubleField->GetTypeAsPrimitiveType(), Primitive::kPrimDouble);
ASSERT_DOUBLE_EQ(doubleField->GetDouble(h_instance.Get()), static_cast<double>(0.0));
ArtField* objectField = h_klass->FindDeclaredInstanceField("objectField",
"Ljava/lang/Object;");
ASSERT_TRUE(objectField != nullptr);
ASSERT_EQ(objectField->GetTypeAsPrimitiveType(), Primitive::kPrimNot);
ASSERT_EQ(objectField->GetObject(h_instance.Get()), nullptr);
// Create a java.lang.Object instance to set objectField.
Handle<mirror::Class> object_klass(
hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;")));
ASSERT_TRUE(object_klass != nullptr);
Handle<mirror::Object> h_obj(hs.NewHandle(h_klass->AllocObject(soa.Self())));
ASSERT_TRUE(h_obj != nullptr);
ASSERT_OBJ_PTR_EQ(h_obj->GetClass(), h_klass.Get());
// Modify fields inside transaction then rollback changes.
EnterTransactionMode();
booleanField->SetBoolean<true>(h_instance.Get(), true);
byteField->SetByte<true>(h_instance.Get(), 1);
charField->SetChar<true>(h_instance.Get(), 1u);
shortField->SetShort<true>(h_instance.Get(), 1);
intField->SetInt<true>(h_instance.Get(), 1);
longField->SetLong<true>(h_instance.Get(), 1);
floatField->SetFloat<true>(h_instance.Get(), 1.0);
doubleField->SetDouble<true>(h_instance.Get(), 1.0);
objectField->SetObject<true>(h_instance.Get(), h_obj.Get());
RollbackAndExitTransactionMode();
// Check values have properly been restored to their original (default) value.
EXPECT_EQ(booleanField->GetBoolean(h_instance.Get()), false);
EXPECT_EQ(byteField->GetByte(h_instance.Get()), 0);
EXPECT_EQ(charField->GetChar(h_instance.Get()), 0u);
EXPECT_EQ(shortField->GetShort(h_instance.Get()), 0);
EXPECT_EQ(intField->GetInt(h_instance.Get()), 0);
EXPECT_EQ(longField->GetLong(h_instance.Get()), static_cast<int64_t>(0));
EXPECT_FLOAT_EQ(floatField->GetFloat(h_instance.Get()), static_cast<float>(0.0f));
EXPECT_DOUBLE_EQ(doubleField->GetDouble(h_instance.Get()), static_cast<double>(0.0));
EXPECT_EQ(objectField->GetObject(h_instance.Get()), nullptr);
}
// Tests static array fields are reset to their default value after transaction rollback.
TEST_F(TransactionTest, StaticArrayFieldsTest) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<13> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader(
hs.NewHandle(soa.Decode<mirror::ClassLoader>(LoadDex("Transaction"))));
ASSERT_TRUE(class_loader != nullptr);
Handle<mirror::Class> h_klass(
hs.NewHandle(class_linker_->FindClass(soa.Self(), "LStaticArrayFieldsTest;", class_loader)));
ASSERT_TRUE(h_klass != nullptr);
bool success = class_linker_->EnsureInitialized(soa.Self(), h_klass, true, true);
ASSERT_TRUE(success);
ASSERT_TRUE(h_klass->IsInitialized());
ASSERT_FALSE(soa.Self()->IsExceptionPending());
// Lookup fields.
ArtField* booleanArrayField = h_klass->FindDeclaredStaticField("booleanArrayField", "[Z");
ASSERT_TRUE(booleanArrayField != nullptr);
Handle<mirror::BooleanArray> booleanArray = hs.NewHandle(
booleanArrayField->GetObject(h_klass.Get())->AsBooleanArray());
ASSERT_TRUE(booleanArray != nullptr);
ASSERT_EQ(booleanArray->GetLength(), 1);
ASSERT_EQ(booleanArray->GetWithoutChecks(0), false);
ArtField* byteArrayField = h_klass->FindDeclaredStaticField("byteArrayField", "[B");
ASSERT_TRUE(byteArrayField != nullptr);
Handle<mirror::ByteArray> byteArray =
hs.NewHandle(byteArrayField->GetObject(h_klass.Get())->AsByteArray());
ASSERT_TRUE(byteArray != nullptr);
ASSERT_EQ(byteArray->GetLength(), 1);
ASSERT_EQ(byteArray->GetWithoutChecks(0), 0);
ArtField* charArrayField = h_klass->FindDeclaredStaticField("charArrayField", "[C");
ASSERT_TRUE(charArrayField != nullptr);
Handle<mirror::CharArray> charArray =
hs.NewHandle(charArrayField->GetObject(h_klass.Get())->AsCharArray());
ASSERT_TRUE(charArray != nullptr);
ASSERT_EQ(charArray->GetLength(), 1);
ASSERT_EQ(charArray->GetWithoutChecks(0), 0u);
ArtField* shortArrayField = h_klass->FindDeclaredStaticField("shortArrayField", "[S");
ASSERT_TRUE(shortArrayField != nullptr);
Handle<mirror::ShortArray> shortArray =
hs.NewHandle(shortArrayField->GetObject(h_klass.Get())->AsShortArray());
ASSERT_TRUE(shortArray != nullptr);
ASSERT_EQ(shortArray->GetLength(), 1);
ASSERT_EQ(shortArray->GetWithoutChecks(0), 0);
ArtField* intArrayField = h_klass->FindDeclaredStaticField("intArrayField", "[I");
ASSERT_TRUE(intArrayField != nullptr);
Handle<mirror::IntArray> intArray =
hs.NewHandle(intArrayField->GetObject(h_klass.Get())->AsIntArray());
ASSERT_TRUE(intArray != nullptr);
ASSERT_EQ(intArray->GetLength(), 1);
ASSERT_EQ(intArray->GetWithoutChecks(0), 0);
ArtField* longArrayField = h_klass->FindDeclaredStaticField("longArrayField", "[J");
ASSERT_TRUE(longArrayField != nullptr);
Handle<mirror::LongArray> longArray =
hs.NewHandle(longArrayField->GetObject(h_klass.Get())->AsLongArray());
ASSERT_TRUE(longArray != nullptr);
ASSERT_EQ(longArray->GetLength(), 1);
ASSERT_EQ(longArray->GetWithoutChecks(0), static_cast<int64_t>(0));
ArtField* floatArrayField = h_klass->FindDeclaredStaticField("floatArrayField", "[F");
ASSERT_TRUE(floatArrayField != nullptr);
Handle<mirror::FloatArray> floatArray =
hs.NewHandle(floatArrayField->GetObject(h_klass.Get())->AsFloatArray());
ASSERT_TRUE(floatArray != nullptr);
ASSERT_EQ(floatArray->GetLength(), 1);
ASSERT_FLOAT_EQ(floatArray->GetWithoutChecks(0), static_cast<float>(0.0f));
ArtField* doubleArrayField = h_klass->FindDeclaredStaticField("doubleArrayField", "[D");
ASSERT_TRUE(doubleArrayField != nullptr);
Handle<mirror::DoubleArray> doubleArray =
hs.NewHandle(doubleArrayField->GetObject(h_klass.Get())->AsDoubleArray());
ASSERT_TRUE(doubleArray != nullptr);
ASSERT_EQ(doubleArray->GetLength(), 1);
ASSERT_DOUBLE_EQ(doubleArray->GetWithoutChecks(0), static_cast<double>(0.0f));
ArtField* objectArrayField =
h_klass->FindDeclaredStaticField("objectArrayField", "[Ljava/lang/Object;");
ASSERT_TRUE(objectArrayField != nullptr);
Handle<mirror::ObjectArray<mirror::Object>> objectArray =
hs.NewHandle(objectArrayField->GetObject(h_klass.Get())->AsObjectArray<mirror::Object>());
ASSERT_TRUE(objectArray != nullptr);
ASSERT_EQ(objectArray->GetLength(), 1);
ASSERT_EQ(objectArray->GetWithoutChecks(0), nullptr);
// Create a java.lang.Object instance to set objectField.
Handle<mirror::Class> object_klass(
hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;")));
ASSERT_TRUE(object_klass != nullptr);
Handle<mirror::Object> h_obj(hs.NewHandle(h_klass->AllocObject(soa.Self())));
ASSERT_TRUE(h_obj != nullptr);
ASSERT_OBJ_PTR_EQ(h_obj->GetClass(), h_klass.Get());
// Modify fields inside transaction then rollback changes.
EnterTransactionMode();
booleanArray->SetWithoutChecks<true>(0, true);
byteArray->SetWithoutChecks<true>(0, 1);
charArray->SetWithoutChecks<true>(0, 1u);
shortArray->SetWithoutChecks<true>(0, 1);
intArray->SetWithoutChecks<true>(0, 1);
longArray->SetWithoutChecks<true>(0, 1);
floatArray->SetWithoutChecks<true>(0, 1.0);
doubleArray->SetWithoutChecks<true>(0, 1.0);
objectArray->SetWithoutChecks<true>(0, h_obj.Get());
RollbackAndExitTransactionMode();
// Check values have properly been restored to their original (default) value.
EXPECT_EQ(booleanArray->GetWithoutChecks(0), false);
EXPECT_EQ(byteArray->GetWithoutChecks(0), 0);
EXPECT_EQ(charArray->GetWithoutChecks(0), 0u);
EXPECT_EQ(shortArray->GetWithoutChecks(0), 0);
EXPECT_EQ(intArray->GetWithoutChecks(0), 0);
EXPECT_EQ(longArray->GetWithoutChecks(0), static_cast<int64_t>(0));
EXPECT_FLOAT_EQ(floatArray->GetWithoutChecks(0), static_cast<float>(0.0f));
EXPECT_DOUBLE_EQ(doubleArray->GetWithoutChecks(0), static_cast<double>(0.0f));
EXPECT_EQ(objectArray->GetWithoutChecks(0), nullptr);
}
// Tests rolling back interned strings and resolved strings.
TEST_F(TransactionTest, ResolveString) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<3> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader(
hs.NewHandle(soa.Decode<mirror::ClassLoader>(LoadDex("Transaction"))));
ASSERT_TRUE(class_loader != nullptr);
Handle<mirror::Class> h_klass(
hs.NewHandle(class_linker_->FindClass(soa.Self(), "LTransaction$ResolveString;",
class_loader)));
ASSERT_TRUE(h_klass != nullptr);
Handle<mirror::DexCache> h_dex_cache(hs.NewHandle(h_klass->GetDexCache()));
ASSERT_TRUE(h_dex_cache != nullptr);
const DexFile* const dex_file = h_dex_cache->GetDexFile();
ASSERT_TRUE(dex_file != nullptr);
// Go search the dex file to find the string id of our string.
static const char* kResolvedString = "ResolvedString";
const dex::StringId* string_id = dex_file->FindStringId(kResolvedString);
ASSERT_TRUE(string_id != nullptr);
dex::StringIndex string_idx = dex_file->GetIndexForStringId(*string_id);
ASSERT_TRUE(string_idx.IsValid());
// String should only get resolved by the initializer.
EXPECT_TRUE(class_linker_->LookupString(string_idx, h_dex_cache.Get()) == nullptr);
EXPECT_TRUE(h_dex_cache->GetResolvedString(string_idx) == nullptr);
// Do the transaction, then roll back.
EnterTransactionMode();
bool success = class_linker_->EnsureInitialized(soa.Self(), h_klass, true, true);
ASSERT_TRUE(success);
ASSERT_TRUE(h_klass->IsInitialized());
// Make sure the string got resolved by the transaction.
{
ObjPtr<mirror::String> s =
class_linker_->LookupString(string_idx, h_dex_cache.Get());
ASSERT_TRUE(s != nullptr);
EXPECT_STREQ(s->ToModifiedUtf8().c_str(), kResolvedString);
EXPECT_OBJ_PTR_EQ(s, h_dex_cache->GetResolvedString(string_idx));
}
RollbackAndExitTransactionMode();
// Check that the string did not stay resolved.
EXPECT_TRUE(class_linker_->LookupString(string_idx, h_dex_cache.Get()) == nullptr);
EXPECT_TRUE(h_dex_cache->GetResolvedString(string_idx) == nullptr);
ASSERT_FALSE(h_klass->IsInitialized());
ASSERT_FALSE(soa.Self()->IsExceptionPending());
}
// Tests successful class initialization without class initializer.
TEST_F(TransactionTest, EmptyClass) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<2> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader(
hs.NewHandle(soa.Decode<mirror::ClassLoader>(LoadDex("Transaction"))));
ASSERT_TRUE(class_loader != nullptr);
Handle<mirror::Class> h_klass(
hs.NewHandle(class_linker_->FindClass(soa.Self(), "LTransaction$EmptyStatic;",
class_loader)));
ASSERT_TRUE(h_klass != nullptr);
class_linker_->VerifyClass(soa.Self(), /* verifier_deps= */ nullptr, h_klass);
ASSERT_TRUE(h_klass->IsVerified());
EnterTransactionMode();
bool success = class_linker_->EnsureInitialized(soa.Self(), h_klass, true, true);
ExitTransactionMode();
ASSERT_TRUE(success);
ASSERT_TRUE(h_klass->IsInitialized());
ASSERT_FALSE(soa.Self()->IsExceptionPending());
}
// Tests successful class initialization with class initializer.
TEST_F(TransactionTest, StaticFieldClass) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<2> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader(
hs.NewHandle(soa.Decode<mirror::ClassLoader>(LoadDex("Transaction"))));
ASSERT_TRUE(class_loader != nullptr);
Handle<mirror::Class> h_klass(
hs.NewHandle(class_linker_->FindClass(soa.Self(), "LTransaction$StaticFieldClass;",
class_loader)));
ASSERT_TRUE(h_klass != nullptr);
class_linker_->VerifyClass(soa.Self(), /* verifier_deps= */ nullptr, h_klass);
ASSERT_TRUE(h_klass->IsVerified());
EnterTransactionMode();
bool success = class_linker_->EnsureInitialized(soa.Self(), h_klass, true, true);
ExitTransactionMode();
ASSERT_TRUE(success);
ASSERT_TRUE(h_klass->IsInitialized());
ASSERT_FALSE(soa.Self()->IsExceptionPending());
}
// Tests failing class initialization due to native call.
TEST_F(TransactionTest, NativeCallAbortClass) {
testTransactionAbort("LTransaction$NativeCallAbortClass;");
}
// Tests failing class initialization due to native call in a "synchronized" statement
// (which must catch any exception, do the monitor-exit then re-throw the caught exception).
TEST_F(TransactionTest, SynchronizedNativeCallAbortClass) {
testTransactionAbort("LTransaction$SynchronizedNativeCallAbortClass;");
}
// Tests failing class initialization due to native call, even if an "all" catch handler
// catches the exception thrown when aborting the transaction.
TEST_F(TransactionTest, CatchNativeCallAbortClass) {
testTransactionAbort("LTransaction$CatchNativeCallAbortClass;");
}
// Tests failing class initialization with multiple transaction aborts.
TEST_F(TransactionTest, MultipleNativeCallAbortClass) {
testTransactionAbort("LTransaction$MultipleNativeCallAbortClass;");
}
// Tests failing class initialization due to Class.forName() not finding the class,
// even if an "all" catch handler catches the exception thrown when aborting the transaction.
TEST_F(TransactionTest, CatchClassForNameAbortClass) {
testTransactionAbort("LTransaction$CatchClassForNameAbortClass;");
}
// Same as CatchClassForNameAbortClass but the class initializer tries to do the work twice.
// This would trigger a DCHECK() if we continued executing bytecode with an aborted transaction.
TEST_F(TransactionTest, CatchClassForNameAbortClassTwice) {
testTransactionAbort("LTransaction$CatchClassForNameAbortClassTwice;");
}
// Tests failing class initialization due to allocating instance of finalizable class.
TEST_F(TransactionTest, FinalizableAbortClass) {
testTransactionAbort("LTransaction$FinalizableAbortClass;");
}
TEST_F(TransactionTest, Constraints) {
ScopedObjectAccess soa(Thread::Current());
StackHandleScope<11> hs(soa.Self());
Handle<mirror::ClassLoader> class_loader(
hs.NewHandle(soa.Decode<mirror::ClassLoader>(LoadDex("Transaction"))));
gc::Heap* heap = Runtime::Current()->GetHeap();
Handle<mirror::Class> boolean_class = hs.NewHandle(
class_linker_->FindClass(soa.Self(), "Ljava/lang/Boolean;", class_loader));
ASSERT_TRUE(boolean_class != nullptr);
ASSERT_TRUE(heap->ObjectIsInBootImageSpace(boolean_class.Get()));
ArtField* true_field =
mirror::Class::FindField(soa.Self(), boolean_class.Get(), "TRUE", "Ljava/lang/Boolean;");
ASSERT_TRUE(true_field != nullptr);
ASSERT_TRUE(true_field->IsStatic());
Handle<mirror::Object> true_value = hs.NewHandle(true_field->GetObject(boolean_class.Get()));
ASSERT_TRUE(true_value != nullptr);
ASSERT_TRUE(heap->ObjectIsInBootImageSpace(true_value.Get()));
ArtField* value_field =
mirror::Class::FindField(soa.Self(), boolean_class.Get(), "value", "Z");
ASSERT_TRUE(value_field != nullptr);
ASSERT_FALSE(value_field->IsStatic());
Handle<mirror::Class> static_field_class(hs.NewHandle(
class_linker_->FindClass(soa.Self(), "LTransaction$StaticFieldClass;", class_loader)));
ASSERT_TRUE(static_field_class != nullptr);
ASSERT_FALSE(heap->ObjectIsInBootImageSpace(static_field_class.Get()));
ArtField* int_field =
mirror::Class::FindField(soa.Self(), static_field_class.Get(), "intField", "I");
ASSERT_TRUE(int_field != nullptr);
Handle<mirror::Class> static_fields_test_class(hs.NewHandle(
class_linker_->FindClass(soa.Self(), "LStaticFieldsTest;", class_loader)));
ASSERT_TRUE(static_fields_test_class != nullptr);
ASSERT_FALSE(heap->ObjectIsInBootImageSpace(static_fields_test_class.Get()));
ArtField* static_fields_test_int_field =
mirror::Class::FindField(soa.Self(), static_fields_test_class.Get(), "intField", "I");
ASSERT_TRUE(static_fields_test_int_field != nullptr);
Handle<mirror::Class> instance_fields_test_class(hs.NewHandle(
class_linker_->FindClass(soa.Self(), "LInstanceFieldsTest;", class_loader)));
ASSERT_TRUE(instance_fields_test_class != nullptr);
ASSERT_FALSE(heap->ObjectIsInBootImageSpace(instance_fields_test_class.Get()));
ArtField* instance_fields_test_int_field =
mirror::Class::FindField(soa.Self(), instance_fields_test_class.Get(), "intField", "I");
ASSERT_TRUE(instance_fields_test_int_field != nullptr);
Handle<mirror::Object> instance_fields_test_object = hs.NewHandle(
instance_fields_test_class->Alloc(soa.Self(), heap->GetCurrentAllocator()));
ASSERT_TRUE(instance_fields_test_object != nullptr);
ASSERT_FALSE(heap->ObjectIsInBootImageSpace(instance_fields_test_object.Get()));
// The `long[].class` should be in the boot image but `long[][][].class` should not.
// (We have seen `long[][].class` both present and missing from the boot image,
// depending on the libcore code, so we do not use it for this test.)
Handle<mirror::Class> long_array_dim3_class = hs.NewHandle(
class_linker_->FindClass(soa.Self(), "[[[J", class_loader));
ASSERT_TRUE(long_array_dim3_class != nullptr);
ASSERT_FALSE(heap->ObjectIsInBootImageSpace(long_array_dim3_class.Get()));
ASSERT_TRUE(heap->ObjectIsInBootImageSpace(
long_array_dim3_class->GetComponentType()->GetComponentType()));
Handle<mirror::Array> long_array_dim3 = hs.NewHandle(mirror::Array::Alloc(
soa.Self(),
long_array_dim3_class.Get(),
/*component_count=*/ 1,
long_array_dim3_class->GetComponentSizeShift(),
heap->GetCurrentAllocator()));
ASSERT_TRUE(long_array_dim3 != nullptr);
ASSERT_FALSE(heap->ObjectIsInBootImageSpace(long_array_dim3.Get()));
Handle<mirror::Array> long_array = hs.NewHandle(mirror::Array::Alloc(
soa.Self(),
long_array_dim3_class->GetComponentType()->GetComponentType(),
/*component_count=*/ 1,
long_array_dim3_class->GetComponentType()->GetComponentType()->GetComponentSizeShift(),
heap->GetCurrentAllocator()));
ASSERT_TRUE(long_array != nullptr);
ASSERT_FALSE(heap->ObjectIsInBootImageSpace(long_array.Get()));
// Use the Array's IfTable as an array from the boot image.
Handle<mirror::ObjectArray<mirror::Object>> array_iftable =
hs.NewHandle(long_array_dim3_class->GetIfTable());
ASSERT_TRUE(array_iftable != nullptr);
ASSERT_TRUE(heap->ObjectIsInBootImageSpace(array_iftable.Get()));
// Test non-strict transaction.
Transaction transaction(/*strict=*/ false, /*root=*/ nullptr);
// Static field in boot image.
EXPECT_TRUE(transaction.WriteConstraint(soa.Self(), boolean_class.Get()));
EXPECT_FALSE(transaction.ReadConstraint(soa.Self(), boolean_class.Get()));
// Instance field or array element in boot image.
// Do not check ReadConstraint(), it expects only static fields (checks for class object).
EXPECT_TRUE(transaction.WriteConstraint(soa.Self(), true_value.Get()));
EXPECT_TRUE(transaction.WriteConstraint(soa.Self(), array_iftable.Get()));
// Static field not in boot image.
EXPECT_FALSE(transaction.WriteConstraint(soa.Self(), static_fields_test_class.Get()));
EXPECT_FALSE(transaction.ReadConstraint(soa.Self(), static_fields_test_class.Get()));
// Instance field or array element not in boot image.
// Do not check ReadConstraint(), it expects only static fields (checks for class object).
EXPECT_FALSE(transaction.WriteConstraint(soa.Self(), instance_fields_test_object.Get()));
EXPECT_FALSE(transaction.WriteConstraint(soa.Self(), long_array_dim3.Get()));
// Write value constraints.
EXPECT_FALSE(transaction.WriteValueConstraint(soa.Self(), static_fields_test_class.Get()));
EXPECT_FALSE(transaction.WriteValueConstraint(soa.Self(), instance_fields_test_object.Get()));
EXPECT_TRUE(transaction.WriteValueConstraint(soa.Self(), long_array_dim3->GetClass()));
EXPECT_TRUE(transaction.WriteValueConstraint(soa.Self(), long_array_dim3.Get()));
EXPECT_FALSE(transaction.WriteValueConstraint(soa.Self(), long_array->GetClass()));
EXPECT_FALSE(transaction.WriteValueConstraint(soa.Self(), long_array.Get()));
// Test strict transaction.
Transaction strict_transaction(/*strict=*/ true, /*root=*/ static_field_class.Get());
// Static field in boot image.
EXPECT_TRUE(strict_transaction.WriteConstraint(soa.Self(), boolean_class.Get()));
EXPECT_TRUE(strict_transaction.ReadConstraint(soa.Self(), boolean_class.Get()));
// Instance field or array element in boot image.
// Do not check ReadConstraint(), it expects only static fields (checks for class object).
EXPECT_TRUE(strict_transaction.WriteConstraint(soa.Self(), true_value.Get()));
EXPECT_TRUE(strict_transaction.WriteConstraint(soa.Self(), array_iftable.Get()));
// Static field in another class not in boot image.
EXPECT_TRUE(strict_transaction.WriteConstraint(soa.Self(), static_fields_test_class.Get()));
EXPECT_TRUE(strict_transaction.ReadConstraint(soa.Self(), static_fields_test_class.Get()));
// Instance field or array element not in boot image.
// Do not check ReadConstraint(), it expects only static fields (checks for class object).
EXPECT_FALSE(strict_transaction.WriteConstraint(soa.Self(), instance_fields_test_object.Get()));
EXPECT_FALSE(strict_transaction.WriteConstraint(soa.Self(), long_array_dim3.Get()));
// Static field in the same class.
EXPECT_FALSE(strict_transaction.WriteConstraint(soa.Self(), static_field_class.Get()));
EXPECT_FALSE(strict_transaction.ReadConstraint(soa.Self(), static_field_class.Get()));
// Write value constraints.
EXPECT_FALSE(strict_transaction.WriteValueConstraint(soa.Self(), static_fields_test_class.Get()));
EXPECT_FALSE(
strict_transaction.WriteValueConstraint(soa.Self(), instance_fields_test_object.Get()));
// TODO: The following may be revised, see a TODO in Transaction::WriteValueConstraint().
EXPECT_FALSE(strict_transaction.WriteValueConstraint(soa.Self(), long_array_dim3->GetClass()));
EXPECT_FALSE(strict_transaction.WriteValueConstraint(soa.Self(), long_array_dim3.Get()));
EXPECT_FALSE(strict_transaction.WriteValueConstraint(soa.Self(), long_array->GetClass()));
EXPECT_FALSE(strict_transaction.WriteValueConstraint(soa.Self(), long_array.Get()));
}
} // namespace art
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