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/*
* Copyright (C) 2024 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 "interpreter/unstarted_runtime_test.h"
#include "class_root-inl.h"
#include "common_transaction_test.h"
#include "dex/descriptors_names.h"
#include "interpreter/interpreter_common.h"
#include "handle.h"
#include "handle_scope-inl.h"
#include "mirror/class-inl.h"
namespace art HIDDEN {
namespace interpreter {
class UnstartedRuntimeTransactionTest : public CommonTransactionTestBase<UnstartedRuntimeTestBase> {
protected:
// Prepare for aborts. Aborts assume that the exception class is already resolved, as the
// loading code doesn't work under transactions.
void PrepareForAborts() REQUIRES_SHARED(Locks::mutator_lock_) {
ObjPtr<mirror::Object> result =
FindClass(kTransactionAbortErrorDescriptor, ScopedNullHandle<mirror::ClassLoader>());
CHECK(result != nullptr);
}
};
TEST_F(UnstartedRuntimeTransactionTest, ToLowerUpper) {
Thread* self = Thread::Current();
ScopedObjectAccess soa(self);
UniqueDeoptShadowFramePtr tmp = CreateShadowFrame(10, nullptr, 0);
PrepareForAborts();
for (uint32_t i = 128; i < 256; ++i) {
{
JValue result;
tmp->SetVReg(0, static_cast<int32_t>(i));
EnterTransactionMode();
UnstartedCharacterToLowerCase(self, tmp.get(), &result, 0);
ASSERT_TRUE(IsTransactionAborted());
ExitTransactionMode();
ASSERT_TRUE(self->IsExceptionPending());
}
{
JValue result;
tmp->SetVReg(0, static_cast<int32_t>(i));
EnterTransactionMode();
UnstartedCharacterToUpperCase(self, tmp.get(), &result, 0);
ASSERT_TRUE(IsTransactionAborted());
ExitTransactionMode();
ASSERT_TRUE(self->IsExceptionPending());
}
}
for (uint64_t i = 256; i <= std::numeric_limits<uint32_t>::max(); i <<= 1) {
{
JValue result;
tmp->SetVReg(0, static_cast<int32_t>(i));
EnterTransactionMode();
UnstartedCharacterToLowerCase(self, tmp.get(), &result, 0);
ASSERT_TRUE(IsTransactionAborted());
ExitTransactionMode();
ASSERT_TRUE(self->IsExceptionPending());
}
{
JValue result;
tmp->SetVReg(0, static_cast<int32_t>(i));
EnterTransactionMode();
UnstartedCharacterToUpperCase(self, tmp.get(), &result, 0);
ASSERT_TRUE(IsTransactionAborted());
ExitTransactionMode();
ASSERT_TRUE(self->IsExceptionPending());
}
}
}
TEST_F(UnstartedRuntimeTransactionTest, ThreadLocalGet) {
Thread* self = Thread::Current();
ScopedObjectAccess soa(self);
UniqueDeoptShadowFramePtr shadow_frame = CreateShadowFrame(10, nullptr, 0);
// Negative test.
PrepareForAborts();
// Just use a method in Class.
ObjPtr<mirror::Class> class_class = GetClassRoot<mirror::Class>();
ArtMethod* caller_method =
&*class_class->GetDeclaredMethods(class_linker_->GetImagePointerSize()).begin();
UniqueDeoptShadowFramePtr caller_frame = CreateShadowFrame(10, caller_method, 0);
shadow_frame->SetLink(caller_frame.get());
JValue result;
EnterTransactionMode();
UnstartedThreadLocalGet(self, shadow_frame.get(), &result, 0);
ASSERT_TRUE(IsTransactionAborted());
ExitTransactionMode();
ASSERT_TRUE(self->IsExceptionPending());
self->ClearException();
shadow_frame->ClearLink();
}
TEST_F(UnstartedRuntimeTransactionTest, ThreadCurrentThread) {
Thread* self = Thread::Current();
ScopedObjectAccess soa(self);
UniqueDeoptShadowFramePtr shadow_frame = CreateShadowFrame(10, nullptr, 0);
// Negative test. In general, currentThread should fail (as we should not leak a peer that will
// be recreated at runtime).
PrepareForAborts();
JValue result;
EnterTransactionMode();
UnstartedThreadCurrentThread(self, shadow_frame.get(), &result, 0);
ASSERT_TRUE(IsTransactionAborted());
ExitTransactionMode();
ASSERT_TRUE(self->IsExceptionPending());
self->ClearException();
}
class UnstartedClassForNameTransactionTest : public UnstartedRuntimeTransactionTest {
public:
template <typename T>
void RunTest(T&& runner, bool should_succeed) {
Thread* self = Thread::Current();
ScopedObjectAccess soa(self);
// Ensure that Class is initialized.
CHECK(GetClassRoot<mirror::Class>()->IsInitialized());
// A selection of classes from different core classpath components.
constexpr const char* kTestCases[] = {
"java.net.CookieManager", // From libcore.
"dalvik.system.ClassExt", // From libart.
};
// For transaction mode, we cannot load any classes, as the pre-fence initialization of
// classes isn't transactional. Load them ahead of time.
for (const char* name : kTestCases) {
FindClass(DotToDescriptor(name).c_str(), ScopedNullHandle<mirror::ClassLoader>());
CHECK(!self->IsExceptionPending()) << self->GetException()->Dump();
}
if (!should_succeed) {
// Negative test. In general, currentThread should fail (as we should not leak a peer that will
// be recreated at runtime).
PrepareForAborts();
}
JValue result;
UniqueDeoptShadowFramePtr shadow_frame = CreateShadowFrame(10, nullptr, 0);
for (const char* name : kTestCases) {
EnterTransactionMode();
ObjPtr<mirror::String> name_string = mirror::String::AllocFromModifiedUtf8(self, name);
CHECK(name_string != nullptr);
CHECK(!self->IsExceptionPending());
runner(self, shadow_frame.get(), name_string, &result);
if (should_succeed) {
CHECK(!self->IsExceptionPending()) << name << " " << self->GetException()->Dump();
CHECK(result.GetL() != nullptr) << name;
} else {
CHECK(self->IsExceptionPending()) << name;
ASSERT_TRUE(IsTransactionAborted());
self->ClearException();
}
ExitTransactionMode();
}
}
};
TEST_F(UnstartedClassForNameTransactionTest, ClassForNameLongWithClassLoader) {
Thread* self = Thread::Current();
ScopedObjectAccess soa(self);
StackHandleScope<1> hs(self);
Handle<mirror::ClassLoader> boot_cp = hs.NewHandle(GetBootClassLoader());
auto runner = [&](Thread* th,
ShadowFrame* shadow_frame,
ObjPtr<mirror::String> name,
JValue* result)
REQUIRES_SHARED(Locks::mutator_lock_) {
shadow_frame->SetVRegReference(0, name);
shadow_frame->SetVReg(1, 0);
shadow_frame->SetVRegReference(2, boot_cp.Get());
UnstartedClassForNameLong(th, shadow_frame, result, 0);
};
RunTest(runner, /*should_succeed=*/ true);
}
TEST_F(UnstartedClassForNameTransactionTest, ClassForNameLongWithClassLoaderFail) {
Thread* self = Thread::Current();
ScopedObjectAccess soa(self);
StackHandleScope<2> hs(self);
jobject path_jobj = class_linker_->CreatePathClassLoader(self, {});
ASSERT_TRUE(path_jobj != nullptr);
Handle<mirror::ClassLoader> path_cp = hs.NewHandle<mirror::ClassLoader>(
self->DecodeJObject(path_jobj)->AsClassLoader());
auto runner = [&](Thread* th,
ShadowFrame* shadow_frame,
ObjPtr<mirror::String> name,
JValue* result) REQUIRES_SHARED(Locks::mutator_lock_) {
shadow_frame->SetVRegReference(0, name);
shadow_frame->SetVReg(1, 0);
shadow_frame->SetVRegReference(2, path_cp.Get());
UnstartedClassForNameLong(th, shadow_frame, result, 0);
};
RunTest(runner, /*should_succeed=*/ false);
}
} // namespace interpreter
} // namespace art
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