Remove blacklist
Removes the class initialization blacklist and use transaction to detect and
revert class initialization attempting to invoke native method. This only
concerns class initialization happening at compilation time when generating an
image (like boot.art for the system).
In transactional mode, we log every object's field assignment and array update.
Therefore we're able to abort a transaction to restore values of fields and
array as they were before the transaction starts. We also log changes to the
intern string table so we can restore its state prior to transaction start.
Since transactional mode only happens at compilation time, we don't need to log
all these changes at runtime. In order to reduce the overhead of testing if
transactional mode is on/off, we templatize interfaces of mirror::Object and
mirror::Array, respectively responsible for setting a field and setting an
array element.
For various reasons, we skip some specific fields from transaction:
- Object's class and array's length must remain unchanged so garbage collector
can compute object's size.
- Immutable fields only set during class loading: list of fields, method,
dex caches, vtables, ... as all classes have been loaded and verified before a
transaction occurs.
- Object's monitor for performance reason.
Before generating the image, we browse the heap to collect objects that need to
be written into it. Since the heap may still holds references to unreachable
objects due to aborted transactions, we trigger one collection at the end of
the class preinitialization phase.
Since the transaction is held by the runtime and all compilation threads share
the same runtime, we need to ensure only one compilation thread has exclusive
access to the runtime. To workaround this issue, we force class initialization
phase to run with only one thread. Note this is only done when generating image
so application compilation is not impacted. This issue will be addressed in a
separate CL.
Bug: 9676614
Change-Id: I221910a9183a5ba6c2b99a277f5a5a68bc69b5f9
diff --git a/runtime/transaction_test.cc b/runtime/transaction_test.cc
new file mode 100644
index 0000000..dcfa24b
--- /dev/null
+++ b/runtime/transaction_test.cc
@@ -0,0 +1,472 @@
+/*
+ * 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 "common_test.h"
+#include "invoke_arg_array_builder.h"
+#include "mirror/array-inl.h"
+#include "mirror/art_field-inl.h"
+#include "mirror/art_method-inl.h"
+#include "transaction.h"
+
+namespace art {
+
+class TransactionTest : public CommonTest {
+};
+
+TEST_F(TransactionTest, Object_class) {
+ ScopedObjectAccess soa(Thread::Current());
+ SirtRef<mirror::Class> sirt_klass(soa.Self(),
+ class_linker_->FindSystemClass("Ljava/lang/Object;"));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+
+ Transaction transaction;
+ Runtime::Current()->EnterTransactionMode(&transaction);
+ SirtRef<mirror::Object> sirt_obj(soa.Self(), sirt_klass->AllocObject(soa.Self()));
+ ASSERT_TRUE(sirt_obj.get() != nullptr);
+ ASSERT_EQ(sirt_obj->GetClass(), sirt_klass.get());
+ Runtime::Current()->ExitTransactionMode();
+
+ // Aborting transaction must not clear the Object::class field.
+ transaction.Abort();
+ EXPECT_EQ(sirt_obj->GetClass(), sirt_klass.get());
+}
+
+TEST_F(TransactionTest, Object_monitor) {
+ ScopedObjectAccess soa(Thread::Current());
+ SirtRef<mirror::Class> sirt_klass(soa.Self(),
+ class_linker_->FindSystemClass("Ljava/lang/Object;"));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+ SirtRef<mirror::Object> sirt_obj(soa.Self(), sirt_klass->AllocObject(soa.Self()));
+ ASSERT_TRUE(sirt_obj.get() != nullptr);
+ ASSERT_EQ(sirt_obj->GetClass(), sirt_klass.get());
+
+ // Lock object's monitor outside the transaction.
+ sirt_obj->MonitorEnter(soa.Self());
+ uint32_t old_lock_word = sirt_obj->GetLockWord().GetValue();
+
+ Transaction transaction;
+ Runtime::Current()->EnterTransactionMode(&transaction);
+ // Unlock object's monitor inside the transaction.
+ sirt_obj->MonitorExit(soa.Self());
+ uint32_t new_lock_word = sirt_obj->GetLockWord().GetValue();
+ Runtime::Current()->ExitTransactionMode();
+
+ // Aborting transaction must not clear the Object::class field.
+ transaction.Abort();
+ uint32_t aborted_lock_word = sirt_obj->GetLockWord().GetValue();
+ EXPECT_NE(old_lock_word, new_lock_word);
+ EXPECT_EQ(aborted_lock_word, new_lock_word);
+}
+
+TEST_F(TransactionTest, Array_length) {
+ ScopedObjectAccess soa(Thread::Current());
+ SirtRef<mirror::Class> sirt_klass(soa.Self(),
+ class_linker_->FindSystemClass("[Ljava/lang/Object;"));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+
+ constexpr int32_t kArraySize = 2;
+
+ Transaction transaction;
+ Runtime::Current()->EnterTransactionMode(&transaction);
+
+ // Allocate an array during transaction.
+ SirtRef<mirror::Array> sirt_obj(soa.Self(),
+ mirror::Array::Alloc<false>(soa.Self(), sirt_klass.get(), kArraySize));
+ ASSERT_TRUE(sirt_obj.get() != nullptr);
+ ASSERT_EQ(sirt_obj->GetClass(), sirt_klass.get());
+ Runtime::Current()->ExitTransactionMode();
+
+ // Aborting transaction must not clear the Object::class field.
+ transaction.Abort();
+ EXPECT_EQ(sirt_obj->GetLength(), kArraySize);
+}
+
+TEST_F(TransactionTest, StaticFieldsTest) {
+ ScopedObjectAccess soa(Thread::Current());
+ SirtRef<mirror::ClassLoader> class_loader(
+ soa.Self(), soa.Decode<mirror::ClassLoader*>(LoadDex("Transaction")));
+ ASSERT_TRUE(class_loader.get() != nullptr);
+
+ SirtRef<mirror::Class> sirt_klass(soa.Self(),
+ class_linker_->FindClass("LStaticFieldsTest;", class_loader));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+ class_linker_->EnsureInitialized(sirt_klass, true, true);
+ ASSERT_TRUE(sirt_klass->IsInitialized());
+
+ // Lookup fields.
+ mirror::ArtField* booleanField = sirt_klass->FindDeclaredStaticField("booleanField", "Z");
+ ASSERT_TRUE(booleanField != nullptr);
+ ASSERT_EQ(FieldHelper(booleanField).GetTypeAsPrimitiveType(), Primitive::kPrimBoolean);
+ ASSERT_EQ(booleanField->GetBoolean(sirt_klass.get()), false);
+
+ mirror::ArtField* byteField = sirt_klass->FindDeclaredStaticField("byteField", "B");
+ ASSERT_TRUE(byteField != nullptr);
+ ASSERT_EQ(FieldHelper(byteField).GetTypeAsPrimitiveType(), Primitive::kPrimByte);
+ ASSERT_EQ(byteField->GetByte(sirt_klass.get()), 0);
+
+ mirror::ArtField* charField = sirt_klass->FindDeclaredStaticField("charField", "C");
+ ASSERT_TRUE(charField != nullptr);
+ ASSERT_EQ(FieldHelper(charField).GetTypeAsPrimitiveType(), Primitive::kPrimChar);
+ ASSERT_EQ(charField->GetChar(sirt_klass.get()), 0u);
+
+ mirror::ArtField* shortField = sirt_klass->FindDeclaredStaticField("shortField", "S");
+ ASSERT_TRUE(shortField != nullptr);
+ ASSERT_EQ(FieldHelper(shortField).GetTypeAsPrimitiveType(), Primitive::kPrimShort);
+ ASSERT_EQ(shortField->GetShort(sirt_klass.get()), 0);
+
+ mirror::ArtField* intField = sirt_klass->FindDeclaredStaticField("intField", "I");
+ ASSERT_TRUE(intField != nullptr);
+ ASSERT_EQ(FieldHelper(intField).GetTypeAsPrimitiveType(), Primitive::kPrimInt);
+ ASSERT_EQ(intField->GetInt(sirt_klass.get()), 0);
+
+ mirror::ArtField* longField = sirt_klass->FindDeclaredStaticField("longField", "J");
+ ASSERT_TRUE(longField != nullptr);
+ ASSERT_EQ(FieldHelper(longField).GetTypeAsPrimitiveType(), Primitive::kPrimLong);
+ ASSERT_EQ(longField->GetLong(sirt_klass.get()), static_cast<int64_t>(0));
+
+ mirror::ArtField* floatField = sirt_klass->FindDeclaredStaticField("floatField", "F");
+ ASSERT_TRUE(floatField != nullptr);
+ ASSERT_EQ(FieldHelper(floatField).GetTypeAsPrimitiveType(), Primitive::kPrimFloat);
+ ASSERT_EQ(floatField->GetFloat(sirt_klass.get()), static_cast<float>(0.0f));
+
+ mirror::ArtField* doubleField = sirt_klass->FindDeclaredStaticField("doubleField", "D");
+ ASSERT_TRUE(doubleField != nullptr);
+ ASSERT_EQ(FieldHelper(doubleField).GetTypeAsPrimitiveType(), Primitive::kPrimDouble);
+ ASSERT_EQ(doubleField->GetDouble(sirt_klass.get()), static_cast<double>(0.0));
+
+ mirror::ArtField* objectField = sirt_klass->FindDeclaredStaticField("objectField", "Ljava/lang/Object;");
+ ASSERT_TRUE(objectField != nullptr);
+ ASSERT_EQ(FieldHelper(objectField).GetTypeAsPrimitiveType(), Primitive::kPrimNot);
+ ASSERT_EQ(objectField->GetObject(sirt_klass.get()), nullptr);
+
+ // Create a java.lang.Object instance to set objectField.
+ SirtRef<mirror::Class> object_klass(soa.Self(), class_linker_->FindSystemClass("Ljava/lang/Object;"));
+ ASSERT_TRUE(object_klass.get() != nullptr);
+ SirtRef<mirror::Object> sirt_obj(soa.Self(), sirt_klass->AllocObject(soa.Self()));
+ ASSERT_TRUE(sirt_obj.get() != nullptr);
+ ASSERT_EQ(sirt_obj->GetClass(), sirt_klass.get());
+
+ // Modify fields inside transaction and abort it.
+ Transaction transaction;
+ Runtime::Current()->EnterTransactionMode(&transaction);
+ booleanField->SetBoolean<true>(sirt_klass.get(), true);
+ byteField->SetByte<true>(sirt_klass.get(), 1);
+ charField->SetChar<true>(sirt_klass.get(), 1u);
+ shortField->SetShort<true>(sirt_klass.get(), 1);
+ intField->SetInt<true>(sirt_klass.get(), 1);
+ longField->SetLong<true>(sirt_klass.get(), 1);
+ floatField->SetFloat<true>(sirt_klass.get(), 1.0);
+ doubleField->SetDouble<true>(sirt_klass.get(), 1.0);
+ objectField->SetObject<true>(sirt_klass.get(), sirt_obj.get());
+ Runtime::Current()->ExitTransactionMode();
+ transaction.Abort();
+
+ // Check values have properly been restored to their original (default) value.
+ EXPECT_EQ(booleanField->GetBoolean(sirt_klass.get()), false);
+ EXPECT_EQ(byteField->GetByte(sirt_klass.get()), 0);
+ EXPECT_EQ(charField->GetChar(sirt_klass.get()), 0u);
+ EXPECT_EQ(shortField->GetShort(sirt_klass.get()), 0);
+ EXPECT_EQ(intField->GetInt(sirt_klass.get()), 0);
+ EXPECT_EQ(longField->GetLong(sirt_klass.get()), static_cast<int64_t>(0));
+ EXPECT_EQ(floatField->GetFloat(sirt_klass.get()), static_cast<float>(0.0f));
+ EXPECT_EQ(doubleField->GetDouble(sirt_klass.get()), static_cast<double>(0.0));
+ EXPECT_EQ(objectField->GetObject(sirt_klass.get()), nullptr);
+}
+
+TEST_F(TransactionTest, InstanceFieldsTest) {
+ ScopedObjectAccess soa(Thread::Current());
+ SirtRef<mirror::ClassLoader> class_loader(
+ soa.Self(), soa.Decode<mirror::ClassLoader*>(LoadDex("Transaction")));
+ ASSERT_TRUE(class_loader.get() != nullptr);
+
+ SirtRef<mirror::Class> sirt_klass(soa.Self(),
+ class_linker_->FindClass("LInstanceFieldsTest;", class_loader));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+ class_linker_->EnsureInitialized(sirt_klass, true, true);
+ ASSERT_TRUE(sirt_klass->IsInitialized());
+
+ // Allocate an InstanceFieldTest object.
+ SirtRef<mirror::Object> sirt_instance(soa.Self(), sirt_klass->AllocObject(soa.Self()));
+ ASSERT_TRUE(sirt_instance.get() != nullptr);
+
+ // Lookup fields.
+ mirror::ArtField* booleanField = sirt_klass->FindDeclaredInstanceField("booleanField", "Z");
+ ASSERT_TRUE(booleanField != nullptr);
+ ASSERT_EQ(FieldHelper(booleanField).GetTypeAsPrimitiveType(), Primitive::kPrimBoolean);
+ ASSERT_EQ(booleanField->GetBoolean(sirt_instance.get()), false);
+
+ mirror::ArtField* byteField = sirt_klass->FindDeclaredInstanceField("byteField", "B");
+ ASSERT_TRUE(byteField != nullptr);
+ ASSERT_EQ(FieldHelper(byteField).GetTypeAsPrimitiveType(), Primitive::kPrimByte);
+ ASSERT_EQ(byteField->GetByte(sirt_instance.get()), 0);
+
+ mirror::ArtField* charField = sirt_klass->FindDeclaredInstanceField("charField", "C");
+ ASSERT_TRUE(charField != nullptr);
+ ASSERT_EQ(FieldHelper(charField).GetTypeAsPrimitiveType(), Primitive::kPrimChar);
+ ASSERT_EQ(charField->GetChar(sirt_instance.get()), 0u);
+
+ mirror::ArtField* shortField = sirt_klass->FindDeclaredInstanceField("shortField", "S");
+ ASSERT_TRUE(shortField != nullptr);
+ ASSERT_EQ(FieldHelper(shortField).GetTypeAsPrimitiveType(), Primitive::kPrimShort);
+ ASSERT_EQ(shortField->GetShort(sirt_instance.get()), 0);
+
+ mirror::ArtField* intField = sirt_klass->FindDeclaredInstanceField("intField", "I");
+ ASSERT_TRUE(intField != nullptr);
+ ASSERT_EQ(FieldHelper(intField).GetTypeAsPrimitiveType(), Primitive::kPrimInt);
+ ASSERT_EQ(intField->GetInt(sirt_instance.get()), 0);
+
+ mirror::ArtField* longField = sirt_klass->FindDeclaredInstanceField("longField", "J");
+ ASSERT_TRUE(longField != nullptr);
+ ASSERT_EQ(FieldHelper(longField).GetTypeAsPrimitiveType(), Primitive::kPrimLong);
+ ASSERT_EQ(longField->GetLong(sirt_instance.get()), static_cast<int64_t>(0));
+
+ mirror::ArtField* floatField = sirt_klass->FindDeclaredInstanceField("floatField", "F");
+ ASSERT_TRUE(floatField != nullptr);
+ ASSERT_EQ(FieldHelper(floatField).GetTypeAsPrimitiveType(), Primitive::kPrimFloat);
+ ASSERT_EQ(floatField->GetFloat(sirt_instance.get()), static_cast<float>(0.0f));
+
+ mirror::ArtField* doubleField = sirt_klass->FindDeclaredInstanceField("doubleField", "D");
+ ASSERT_TRUE(doubleField != nullptr);
+ ASSERT_EQ(FieldHelper(doubleField).GetTypeAsPrimitiveType(), Primitive::kPrimDouble);
+ ASSERT_EQ(doubleField->GetDouble(sirt_instance.get()), static_cast<double>(0.0));
+
+ mirror::ArtField* objectField = sirt_klass->FindDeclaredInstanceField("objectField", "Ljava/lang/Object;");
+ ASSERT_TRUE(objectField != nullptr);
+ ASSERT_EQ(FieldHelper(objectField).GetTypeAsPrimitiveType(), Primitive::kPrimNot);
+ ASSERT_EQ(objectField->GetObject(sirt_instance.get()), nullptr);
+
+ // Create a java.lang.Object instance to set objectField.
+ SirtRef<mirror::Class> object_klass(soa.Self(), class_linker_->FindSystemClass("Ljava/lang/Object;"));
+ ASSERT_TRUE(object_klass.get() != nullptr);
+ SirtRef<mirror::Object> sirt_obj(soa.Self(), sirt_klass->AllocObject(soa.Self()));
+ ASSERT_TRUE(sirt_obj.get() != nullptr);
+ ASSERT_EQ(sirt_obj->GetClass(), sirt_klass.get());
+
+ // Modify fields inside transaction and abort it.
+ Transaction transaction;
+ Runtime::Current()->EnterTransactionMode(&transaction);
+ booleanField->SetBoolean<true>(sirt_instance.get(), true);
+ byteField->SetByte<true>(sirt_instance.get(), 1);
+ charField->SetChar<true>(sirt_instance.get(), 1u);
+ shortField->SetShort<true>(sirt_instance.get(), 1);
+ intField->SetInt<true>(sirt_instance.get(), 1);
+ longField->SetLong<true>(sirt_instance.get(), 1);
+ floatField->SetFloat<true>(sirt_instance.get(), 1.0);
+ doubleField->SetDouble<true>(sirt_instance.get(), 1.0);
+ objectField->SetObject<true>(sirt_instance.get(), sirt_obj.get());
+ Runtime::Current()->ExitTransactionMode();
+ transaction.Abort();
+
+ // Check values have properly been restored to their original (default) value.
+ EXPECT_EQ(booleanField->GetBoolean(sirt_instance.get()), false);
+ EXPECT_EQ(byteField->GetByte(sirt_instance.get()), 0);
+ EXPECT_EQ(charField->GetChar(sirt_instance.get()), 0u);
+ EXPECT_EQ(shortField->GetShort(sirt_instance.get()), 0);
+ EXPECT_EQ(intField->GetInt(sirt_instance.get()), 0);
+ EXPECT_EQ(longField->GetLong(sirt_instance.get()), static_cast<int64_t>(0));
+ EXPECT_EQ(floatField->GetFloat(sirt_instance.get()), static_cast<float>(0.0f));
+ EXPECT_EQ(doubleField->GetDouble(sirt_instance.get()), static_cast<double>(0.0));
+ EXPECT_EQ(objectField->GetObject(sirt_instance.get()), nullptr);
+}
+
+
+TEST_F(TransactionTest, StaticArrayFieldsTest) {
+ ScopedObjectAccess soa(Thread::Current());
+ SirtRef<mirror::ClassLoader> class_loader(
+ soa.Self(), soa.Decode<mirror::ClassLoader*>(LoadDex("Transaction")));
+ ASSERT_TRUE(class_loader.get() != nullptr);
+
+ SirtRef<mirror::Class> sirt_klass(soa.Self(),
+ class_linker_->FindClass("LStaticArrayFieldsTest;", class_loader));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+ class_linker_->EnsureInitialized(sirt_klass, true, true);
+ ASSERT_TRUE(sirt_klass->IsInitialized());
+
+ // Lookup fields.
+ mirror::ArtField* booleanArrayField = sirt_klass->FindDeclaredStaticField("booleanArrayField", "[Z");
+ ASSERT_TRUE(booleanArrayField != nullptr);
+ mirror::BooleanArray* booleanArray = booleanArrayField->GetObject(sirt_klass.get())->AsBooleanArray();
+ ASSERT_TRUE(booleanArray != nullptr);
+ ASSERT_EQ(booleanArray->GetLength(), 1);
+ ASSERT_EQ(booleanArray->GetWithoutChecks(0), false);
+
+ mirror::ArtField* byteArrayField = sirt_klass->FindDeclaredStaticField("byteArrayField", "[B");
+ ASSERT_TRUE(byteArrayField != nullptr);
+ mirror::ByteArray* byteArray = byteArrayField->GetObject(sirt_klass.get())->AsByteArray();
+ ASSERT_TRUE(byteArray != nullptr);
+ ASSERT_EQ(byteArray->GetLength(), 1);
+ ASSERT_EQ(byteArray->GetWithoutChecks(0), 0);
+
+ mirror::ArtField* charArrayField = sirt_klass->FindDeclaredStaticField("charArrayField", "[C");
+ ASSERT_TRUE(charArrayField != nullptr);
+ mirror::CharArray* charArray = charArrayField->GetObject(sirt_klass.get())->AsCharArray();
+ ASSERT_TRUE(charArray != nullptr);
+ ASSERT_EQ(charArray->GetLength(), 1);
+ ASSERT_EQ(charArray->GetWithoutChecks(0), 0u);
+
+ mirror::ArtField* shortArrayField = sirt_klass->FindDeclaredStaticField("shortArrayField", "[S");
+ ASSERT_TRUE(shortArrayField != nullptr);
+ mirror::ShortArray* shortArray = shortArrayField->GetObject(sirt_klass.get())->AsShortArray();
+ ASSERT_TRUE(shortArray != nullptr);
+ ASSERT_EQ(shortArray->GetLength(), 1);
+ ASSERT_EQ(shortArray->GetWithoutChecks(0), 0);
+
+ mirror::ArtField* intArrayField = sirt_klass->FindDeclaredStaticField("intArrayField", "[I");
+ ASSERT_TRUE(intArrayField != nullptr);
+ mirror::IntArray* intArray = intArrayField->GetObject(sirt_klass.get())->AsIntArray();
+ ASSERT_TRUE(intArray != nullptr);
+ ASSERT_EQ(intArray->GetLength(), 1);
+ ASSERT_EQ(intArray->GetWithoutChecks(0), 0);
+
+ mirror::ArtField* longArrayField = sirt_klass->FindDeclaredStaticField("longArrayField", "[J");
+ ASSERT_TRUE(longArrayField != nullptr);
+ mirror::LongArray* longArray = longArrayField->GetObject(sirt_klass.get())->AsLongArray();
+ ASSERT_TRUE(longArray != nullptr);
+ ASSERT_EQ(longArray->GetLength(), 1);
+ ASSERT_EQ(longArray->GetWithoutChecks(0), static_cast<int64_t>(0));
+
+ mirror::ArtField* floatArrayField = sirt_klass->FindDeclaredStaticField("floatArrayField", "[F");
+ ASSERT_TRUE(floatArrayField != nullptr);
+ mirror::FloatArray* floatArray = floatArrayField->GetObject(sirt_klass.get())->AsFloatArray();
+ ASSERT_TRUE(floatArray != nullptr);
+ ASSERT_EQ(floatArray->GetLength(), 1);
+ ASSERT_EQ(floatArray->GetWithoutChecks(0), static_cast<float>(0.0f));
+
+ mirror::ArtField* doubleArrayField = sirt_klass->FindDeclaredStaticField("doubleArrayField", "[D");
+ ASSERT_TRUE(doubleArrayField != nullptr);
+ mirror::DoubleArray* doubleArray = doubleArrayField->GetObject(sirt_klass.get())->AsDoubleArray();
+ ASSERT_TRUE(doubleArray != nullptr);
+ ASSERT_EQ(doubleArray->GetLength(), 1);
+ ASSERT_EQ(doubleArray->GetWithoutChecks(0), static_cast<double>(0.0f));
+
+ mirror::ArtField* objectArrayField = sirt_klass->FindDeclaredStaticField("objectArrayField", "[Ljava/lang/Object;");
+ ASSERT_TRUE(objectArrayField != nullptr);
+ mirror::ObjectArray<mirror::Object>* objectArray = objectArrayField->GetObject(sirt_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.
+ SirtRef<mirror::Class> object_klass(soa.Self(), class_linker_->FindSystemClass("Ljava/lang/Object;"));
+ ASSERT_TRUE(object_klass.get() != nullptr);
+ SirtRef<mirror::Object> sirt_obj(soa.Self(), sirt_klass->AllocObject(soa.Self()));
+ ASSERT_TRUE(sirt_obj.get() != nullptr);
+ ASSERT_EQ(sirt_obj->GetClass(), sirt_klass.get());
+
+ // Modify fields inside transaction and abort it.
+ Transaction transaction;
+ Runtime::Current()->EnterTransactionMode(&transaction);
+ 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, sirt_obj.get());
+ Runtime::Current()->ExitTransactionMode();
+ transaction.Abort();
+
+ // 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_EQ(floatArray->GetWithoutChecks(0), static_cast<float>(0.0f));
+ EXPECT_EQ(doubleArray->GetWithoutChecks(0), static_cast<double>(0.0f));
+ EXPECT_EQ(objectArray->GetWithoutChecks(0), nullptr);
+}
+
+TEST_F(TransactionTest, EmptyClass) {
+ ScopedObjectAccess soa(Thread::Current());
+ SirtRef<mirror::ClassLoader> class_loader(
+ soa.Self(), soa.Decode<mirror::ClassLoader*>(LoadDex("Transaction")));
+ ASSERT_TRUE(class_loader.get() != nullptr);
+
+ SirtRef<mirror::Class> sirt_klass(soa.Self(),
+ class_linker_->FindClass("LTransaction$EmptyStatic;", class_loader));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+ class_linker_->VerifyClass(sirt_klass);
+ ASSERT_TRUE(sirt_klass->IsVerified());
+
+ Transaction transaction;
+ Runtime::Current()->EnterTransactionMode(&transaction);
+ class_linker_->EnsureInitialized(sirt_klass, true, true);
+ Runtime::Current()->ExitTransactionMode();
+ ASSERT_FALSE(soa.Self()->IsExceptionPending());
+}
+
+TEST_F(TransactionTest, StaticFieldClass) {
+ ScopedObjectAccess soa(Thread::Current());
+ SirtRef<mirror::ClassLoader> class_loader(
+ soa.Self(), soa.Decode<mirror::ClassLoader*>(LoadDex("Transaction")));
+ ASSERT_TRUE(class_loader.get() != nullptr);
+
+ SirtRef<mirror::Class> sirt_klass(soa.Self(),
+ class_linker_->FindClass("LTransaction$StaticFieldClass;", class_loader));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+ class_linker_->VerifyClass(sirt_klass);
+ ASSERT_TRUE(sirt_klass->IsVerified());
+
+ Transaction transaction;
+ Runtime::Current()->EnterTransactionMode(&transaction);
+ class_linker_->EnsureInitialized(sirt_klass, true, true);
+ Runtime::Current()->ExitTransactionMode();
+ ASSERT_FALSE(soa.Self()->IsExceptionPending());
+}
+
+TEST_F(TransactionTest, BlacklistedClass) {
+ ScopedObjectAccess soa(Thread::Current());
+ jobject jclass_loader = LoadDex("Transaction");
+ SirtRef<mirror::ClassLoader> class_loader(soa.Self(),
+ soa.Decode<mirror::ClassLoader*>(jclass_loader));
+ ASSERT_TRUE(class_loader.get() != nullptr);
+
+ // Load and verify java.lang.ExceptionInInitializerError and java.lang.InternalError which will
+ // be thrown by class initialization due to native call.
+ SirtRef<mirror::Class> sirt_klass(soa.Self(),
+ class_linker_->FindSystemClass("Ljava/lang/ExceptionInInitializerError;"));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+ class_linker_->VerifyClass(sirt_klass);
+ ASSERT_TRUE(sirt_klass->IsVerified());
+ sirt_klass.reset(class_linker_->FindSystemClass("Ljava/lang/InternalError;"));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+ class_linker_->VerifyClass(sirt_klass);
+ ASSERT_TRUE(sirt_klass->IsVerified());
+
+ // Load and verify Transaction$NativeSupport used in class initialization.
+ sirt_klass.reset(class_linker_->FindClass("LTransaction$NativeSupport;", class_loader));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+ class_linker_->VerifyClass(sirt_klass);
+ ASSERT_TRUE(sirt_klass->IsVerified());
+
+ sirt_klass.reset(class_linker_->FindClass("LTransaction$BlacklistedClass;", class_loader));
+ ASSERT_TRUE(sirt_klass.get() != nullptr);
+ class_linker_->VerifyClass(sirt_klass);
+ ASSERT_TRUE(sirt_klass->IsVerified());
+
+ Transaction transaction;
+ Runtime::Current()->EnterTransactionMode(&transaction);
+ class_linker_->EnsureInitialized(sirt_klass, true, true);
+ Runtime::Current()->ExitTransactionMode();
+ ASSERT_TRUE(soa.Self()->IsExceptionPending());
+}
+
+
+} // namespace art