| /* |
| * Copyright (C) 2011 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 "class_linker.h" |
| |
| #include <memory> |
| #include <string> |
| |
| #include "class_linker-inl.h" |
| #include "common_runtime_test.h" |
| #include "dex_file.h" |
| #include "entrypoints/entrypoint_utils-inl.h" |
| #include "gc/heap.h" |
| #include "mirror/art_field-inl.h" |
| #include "mirror/art_method.h" |
| #include "mirror/art_method-inl.h" |
| #include "mirror/class-inl.h" |
| #include "mirror/dex_cache.h" |
| #include "mirror/object-inl.h" |
| #include "mirror/object_array-inl.h" |
| #include "mirror/proxy.h" |
| #include "mirror/reference.h" |
| #include "mirror/stack_trace_element.h" |
| #include "mirror/string-inl.h" |
| #include "handle_scope-inl.h" |
| #include "scoped_thread_state_change.h" |
| #include "thread-inl.h" |
| |
| namespace art { |
| |
| class ClassLinkerTest : public CommonRuntimeTest { |
| protected: |
| void AssertNonExistentClass(const std::string& descriptor) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| Thread* self = Thread::Current(); |
| EXPECT_TRUE(class_linker_->FindSystemClass(self, descriptor.c_str()) == nullptr); |
| EXPECT_TRUE(self->IsExceptionPending()); |
| mirror::Object* exception = self->GetException(nullptr); |
| self->ClearException(); |
| mirror::Class* exception_class = |
| class_linker_->FindSystemClass(self, "Ljava/lang/NoClassDefFoundError;"); |
| EXPECT_TRUE(exception->InstanceOf(exception_class)); |
| } |
| |
| void AssertPrimitiveClass(const std::string& descriptor) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| Thread* self = Thread::Current(); |
| AssertPrimitiveClass(descriptor, class_linker_->FindSystemClass(self, descriptor.c_str())); |
| } |
| |
| void AssertPrimitiveClass(const std::string& descriptor, mirror::Class* primitive) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| ASSERT_TRUE(primitive != nullptr); |
| ASSERT_TRUE(primitive->GetClass() != nullptr); |
| ASSERT_EQ(primitive->GetClass(), primitive->GetClass()->GetClass()); |
| EXPECT_TRUE(primitive->GetClass()->GetSuperClass() != nullptr); |
| std::string temp; |
| ASSERT_STREQ(descriptor.c_str(), primitive->GetDescriptor(&temp)); |
| EXPECT_TRUE(primitive->GetSuperClass() == nullptr); |
| EXPECT_FALSE(primitive->HasSuperClass()); |
| EXPECT_TRUE(primitive->GetClassLoader() == nullptr); |
| EXPECT_EQ(mirror::Class::kStatusInitialized, primitive->GetStatus()); |
| EXPECT_FALSE(primitive->IsErroneous()); |
| EXPECT_TRUE(primitive->IsLoaded()); |
| EXPECT_TRUE(primitive->IsResolved()); |
| EXPECT_TRUE(primitive->IsVerified()); |
| EXPECT_TRUE(primitive->IsInitialized()); |
| EXPECT_FALSE(primitive->IsArrayInstance()); |
| EXPECT_FALSE(primitive->IsArrayClass()); |
| EXPECT_TRUE(primitive->GetComponentType() == nullptr); |
| EXPECT_FALSE(primitive->IsInterface()); |
| EXPECT_TRUE(primitive->IsPublic()); |
| EXPECT_TRUE(primitive->IsFinal()); |
| EXPECT_TRUE(primitive->IsPrimitive()); |
| EXPECT_FALSE(primitive->IsSynthetic()); |
| EXPECT_EQ(0U, primitive->NumDirectMethods()); |
| EXPECT_EQ(0U, primitive->NumVirtualMethods()); |
| EXPECT_EQ(0U, primitive->NumInstanceFields()); |
| EXPECT_EQ(0U, primitive->NumStaticFields()); |
| EXPECT_EQ(0U, primitive->NumDirectInterfaces()); |
| EXPECT_FALSE(primitive->HasVTable()); |
| EXPECT_EQ(0, primitive->GetIfTableCount()); |
| EXPECT_TRUE(primitive->GetIfTable() == nullptr); |
| EXPECT_EQ(kAccPublic | kAccFinal | kAccAbstract, primitive->GetAccessFlags()); |
| } |
| |
| void AssertArrayClass(const std::string& array_descriptor, |
| const std::string& component_type, |
| mirror::ClassLoader* class_loader) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| Thread* self = Thread::Current(); |
| StackHandleScope<2> hs(self); |
| Handle<mirror::ClassLoader> loader(hs.NewHandle(class_loader)); |
| Handle<mirror::Class> array( |
| hs.NewHandle(class_linker_->FindClass(self, array_descriptor.c_str(), loader))); |
| std::string temp; |
| EXPECT_STREQ(component_type.c_str(), array->GetComponentType()->GetDescriptor(&temp)); |
| EXPECT_EQ(class_loader, array->GetClassLoader()); |
| EXPECT_EQ(kAccFinal | kAccAbstract, (array->GetAccessFlags() & (kAccFinal | kAccAbstract))); |
| AssertArrayClass(array_descriptor, array); |
| } |
| |
| void AssertArrayClass(const std::string& array_descriptor, Handle<mirror::Class> array) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| ASSERT_TRUE(array.Get() != nullptr); |
| ASSERT_TRUE(array->GetClass() != nullptr); |
| ASSERT_EQ(array->GetClass(), array->GetClass()->GetClass()); |
| EXPECT_TRUE(array->GetClass()->GetSuperClass() != nullptr); |
| std::string temp; |
| ASSERT_STREQ(array_descriptor.c_str(), array->GetDescriptor(&temp)); |
| EXPECT_TRUE(array->GetSuperClass() != nullptr); |
| Thread* self = Thread::Current(); |
| EXPECT_EQ(class_linker_->FindSystemClass(self, "Ljava/lang/Object;"), array->GetSuperClass()); |
| EXPECT_TRUE(array->HasSuperClass()); |
| ASSERT_TRUE(array->GetComponentType() != nullptr); |
| ASSERT_GT(strlen(array->GetComponentType()->GetDescriptor(&temp)), 0U); |
| EXPECT_EQ(mirror::Class::kStatusInitialized, array->GetStatus()); |
| EXPECT_FALSE(array->IsErroneous()); |
| EXPECT_TRUE(array->IsLoaded()); |
| EXPECT_TRUE(array->IsResolved()); |
| EXPECT_TRUE(array->IsVerified()); |
| EXPECT_TRUE(array->IsInitialized()); |
| EXPECT_FALSE(array->IsArrayInstance()); |
| EXPECT_TRUE(array->IsArrayClass()); |
| EXPECT_FALSE(array->IsInterface()); |
| EXPECT_EQ(array->GetComponentType()->IsPublic(), array->IsPublic()); |
| EXPECT_TRUE(array->IsFinal()); |
| EXPECT_FALSE(array->IsPrimitive()); |
| EXPECT_FALSE(array->IsSynthetic()); |
| EXPECT_EQ(0U, array->NumDirectMethods()); |
| EXPECT_EQ(0U, array->NumVirtualMethods()); |
| EXPECT_EQ(0U, array->NumInstanceFields()); |
| EXPECT_EQ(0U, array->NumStaticFields()); |
| EXPECT_EQ(2U, array->NumDirectInterfaces()); |
| EXPECT_TRUE(array->ShouldHaveEmbeddedImtAndVTable()); |
| EXPECT_EQ(2, array->GetIfTableCount()); |
| ASSERT_TRUE(array->GetIfTable() != nullptr); |
| mirror::Class* direct_interface0 = mirror::Class::GetDirectInterface(self, array, 0); |
| EXPECT_TRUE(direct_interface0 != nullptr); |
| EXPECT_STREQ(direct_interface0->GetDescriptor(&temp), "Ljava/lang/Cloneable;"); |
| mirror::Class* direct_interface1 = mirror::Class::GetDirectInterface(self, array, 1); |
| EXPECT_STREQ(direct_interface1->GetDescriptor(&temp), "Ljava/io/Serializable;"); |
| mirror::Class* array_ptr = array->GetComponentType(); |
| EXPECT_EQ(class_linker_->FindArrayClass(self, &array_ptr), array.Get()); |
| } |
| |
| void AssertMethod(mirror::ArtMethod* method) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| EXPECT_TRUE(method != nullptr); |
| EXPECT_TRUE(method->GetClass() != nullptr); |
| EXPECT_TRUE(method->GetName() != nullptr); |
| EXPECT_TRUE(method->GetSignature() != Signature::NoSignature()); |
| |
| EXPECT_TRUE(method->HasDexCacheResolvedMethods()); |
| EXPECT_TRUE(method->HasDexCacheResolvedTypes()); |
| EXPECT_TRUE(method->HasSameDexCacheResolvedMethods( |
| method->GetDeclaringClass()->GetDexCache()->GetResolvedMethods())); |
| EXPECT_TRUE(method->HasSameDexCacheResolvedTypes( |
| method->GetDeclaringClass()->GetDexCache()->GetResolvedTypes())); |
| } |
| |
| void AssertField(mirror::Class* klass, mirror::ArtField* field) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| EXPECT_TRUE(field != nullptr); |
| EXPECT_TRUE(field->GetClass() != nullptr); |
| EXPECT_EQ(klass, field->GetDeclaringClass()); |
| EXPECT_TRUE(field->GetName() != nullptr); |
| EXPECT_TRUE(field->GetType(true) != nullptr); |
| } |
| |
| void AssertClass(const std::string& descriptor, Handle<mirror::Class> klass) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| std::string temp; |
| EXPECT_STREQ(descriptor.c_str(), klass->GetDescriptor(&temp)); |
| if (descriptor == "Ljava/lang/Object;") { |
| EXPECT_FALSE(klass->HasSuperClass()); |
| } else { |
| EXPECT_TRUE(klass->HasSuperClass()); |
| EXPECT_TRUE(klass->GetSuperClass() != nullptr); |
| } |
| EXPECT_TRUE(klass->GetClass() != nullptr); |
| EXPECT_EQ(klass->GetClass(), klass->GetClass()->GetClass()); |
| EXPECT_TRUE(klass->GetDexCache() != nullptr); |
| EXPECT_TRUE(klass->IsLoaded()); |
| EXPECT_TRUE(klass->IsResolved()); |
| EXPECT_FALSE(klass->IsErroneous()); |
| EXPECT_FALSE(klass->IsArrayClass()); |
| EXPECT_TRUE(klass->GetComponentType() == nullptr); |
| EXPECT_TRUE(klass->IsInSamePackage(klass.Get())); |
| EXPECT_TRUE(klass->GetDexCacheStrings() != nullptr); |
| EXPECT_EQ(klass->GetDexCacheStrings(), klass->GetDexCache()->GetStrings()); |
| std::string temp2; |
| EXPECT_TRUE(mirror::Class::IsInSamePackage(klass->GetDescriptor(&temp), |
| klass->GetDescriptor(&temp2))); |
| if (klass->IsInterface()) { |
| EXPECT_TRUE(klass->IsAbstract()); |
| if (klass->NumDirectMethods() == 1) { |
| EXPECT_TRUE(klass->GetDirectMethod(0)->IsClassInitializer()); |
| EXPECT_TRUE(klass->GetDirectMethod(0)->IsDirect()); |
| } else { |
| EXPECT_EQ(0U, klass->NumDirectMethods()); |
| } |
| } else { |
| if (!klass->IsSynthetic()) { |
| EXPECT_NE(0U, klass->NumDirectMethods()); |
| } |
| } |
| EXPECT_EQ(klass->IsInterface(), !klass->HasVTable()); |
| mirror::IfTable* iftable = klass->GetIfTable(); |
| for (int i = 0; i < klass->GetIfTableCount(); i++) { |
| mirror::Class* interface = iftable->GetInterface(i); |
| ASSERT_TRUE(interface != nullptr); |
| if (klass->IsInterface()) { |
| EXPECT_EQ(0U, iftable->GetMethodArrayCount(i)); |
| } else { |
| EXPECT_EQ(interface->NumVirtualMethods(), iftable->GetMethodArrayCount(i)); |
| } |
| } |
| if (klass->IsAbstract()) { |
| EXPECT_FALSE(klass->IsFinal()); |
| } else { |
| EXPECT_FALSE(klass->IsAnnotation()); |
| } |
| if (klass->IsFinal()) { |
| EXPECT_FALSE(klass->IsAbstract()); |
| EXPECT_FALSE(klass->IsAnnotation()); |
| } |
| if (klass->IsAnnotation()) { |
| EXPECT_FALSE(klass->IsFinal()); |
| EXPECT_TRUE(klass->IsAbstract()); |
| } |
| |
| EXPECT_FALSE(klass->IsPrimitive()); |
| EXPECT_TRUE(klass->CanAccess(klass.Get())); |
| |
| for (size_t i = 0; i < klass->NumDirectMethods(); i++) { |
| mirror::ArtMethod* method = klass->GetDirectMethod(i); |
| AssertMethod(method); |
| EXPECT_TRUE(method->IsDirect()); |
| EXPECT_EQ(klass.Get(), method->GetDeclaringClass()); |
| } |
| |
| for (size_t i = 0; i < klass->NumVirtualMethods(); i++) { |
| mirror::ArtMethod* method = klass->GetVirtualMethod(i); |
| AssertMethod(method); |
| EXPECT_FALSE(method->IsDirect()); |
| EXPECT_TRUE(method->GetDeclaringClass()->IsAssignableFrom(klass.Get())); |
| } |
| |
| for (size_t i = 0; i < klass->NumInstanceFields(); i++) { |
| mirror::ArtField* field = klass->GetInstanceField(i); |
| AssertField(klass.Get(), field); |
| EXPECT_FALSE(field->IsStatic()); |
| } |
| |
| for (size_t i = 0; i < klass->NumStaticFields(); i++) { |
| mirror::ArtField* field = klass->GetStaticField(i); |
| AssertField(klass.Get(), field); |
| EXPECT_TRUE(field->IsStatic()); |
| } |
| |
| // Confirm that all instances field offsets are packed together at the start. |
| EXPECT_GE(klass->NumInstanceFields(), klass->NumReferenceInstanceFields()); |
| StackHandleScope<1> hs(Thread::Current()); |
| MutableHandle<mirror::ArtField> fhandle = hs.NewHandle<mirror::ArtField>(nullptr); |
| MemberOffset start_ref_offset = klass->GetFirstReferenceInstanceFieldOffset(); |
| MemberOffset end_ref_offset(start_ref_offset.Uint32Value() + |
| klass->NumReferenceInstanceFields() * |
| sizeof(mirror::HeapReference<mirror::Object>)); |
| MemberOffset current_ref_offset = start_ref_offset; |
| for (size_t i = 0; i < klass->NumInstanceFields(); i++) { |
| mirror::ArtField* field = klass->GetInstanceField(i); |
| fhandle.Assign(field); |
| mirror::Class* field_type = fhandle->GetType(true); |
| ASSERT_TRUE(field_type != nullptr); |
| if (!field->IsPrimitiveType()) { |
| ASSERT_TRUE(!field_type->IsPrimitive()); |
| ASSERT_EQ(current_ref_offset.Uint32Value(), field->GetOffset().Uint32Value()); |
| if (current_ref_offset.Uint32Value() == end_ref_offset.Uint32Value()) { |
| // While Reference.referent is not primitive, the ClassLinker |
| // treats it as such so that the garbage collector won't scan it. |
| EXPECT_EQ(PrettyField(fhandle.Get()), |
| "java.lang.Object java.lang.ref.Reference.referent"); |
| } else { |
| current_ref_offset = MemberOffset(current_ref_offset.Uint32Value() + |
| sizeof(mirror::HeapReference<mirror::Object>)); |
| } |
| } else { |
| if (field->GetOffset().Uint32Value() < end_ref_offset.Uint32Value()) { |
| // Shuffled before references. |
| ASSERT_LT(field->GetOffset().Uint32Value(), start_ref_offset.Uint32Value()); |
| CHECK(!IsAligned<4>(field->GetOffset().Uint32Value())); |
| } |
| } |
| } |
| ASSERT_EQ(end_ref_offset.Uint32Value(), current_ref_offset.Uint32Value()); |
| |
| uint32_t total_num_reference_instance_fields = 0; |
| mirror::Class* k = klass.Get(); |
| while (k != nullptr) { |
| total_num_reference_instance_fields += k->NumReferenceInstanceFields(); |
| k = k->GetSuperClass(); |
| } |
| EXPECT_GE(total_num_reference_instance_fields, 1U); // Should always have Object's class. |
| if (klass->GetReferenceInstanceOffsets() != mirror::Class::kClassWalkSuper) { |
| // The reference instance offsets have a bit set for each reference offset. |
| // +1 for Object's class. |
| EXPECT_EQ(static_cast<uint32_t>(POPCOUNT(klass->GetReferenceInstanceOffsets())) + 1, |
| total_num_reference_instance_fields); |
| } |
| } |
| |
| void AssertDexFileClass(mirror::ClassLoader* class_loader, const std::string& descriptor) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| ASSERT_TRUE(descriptor != nullptr); |
| Thread* self = Thread::Current(); |
| StackHandleScope<1> hs(self); |
| Handle<mirror::Class> klass( |
| hs.NewHandle(class_linker_->FindSystemClass(self, descriptor.c_str()))); |
| ASSERT_TRUE(klass.Get() != nullptr); |
| std::string temp; |
| EXPECT_STREQ(descriptor.c_str(), klass.Get()->GetDescriptor(&temp)); |
| EXPECT_EQ(class_loader, klass->GetClassLoader()); |
| if (klass->IsPrimitive()) { |
| AssertPrimitiveClass(descriptor, klass.Get()); |
| } else if (klass->IsArrayClass()) { |
| AssertArrayClass(descriptor, klass); |
| } else { |
| AssertClass(descriptor, klass); |
| } |
| } |
| |
| void AssertDexFile(const DexFile& dex, mirror::ClassLoader* class_loader) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| // Verify all the classes defined in this file |
| for (size_t i = 0; i < dex.NumClassDefs(); i++) { |
| const DexFile::ClassDef& class_def = dex.GetClassDef(i); |
| const char* descriptor = dex.GetClassDescriptor(class_def); |
| AssertDexFileClass(class_loader, descriptor); |
| } |
| // Verify all the types referenced by this file |
| for (size_t i = 0; i < dex.NumTypeIds(); i++) { |
| const DexFile::TypeId& type_id = dex.GetTypeId(i); |
| const char* descriptor = dex.GetTypeDescriptor(type_id); |
| AssertDexFileClass(class_loader, descriptor); |
| } |
| class_linker_->VisitRoots(TestRootVisitor, nullptr, kVisitRootFlagAllRoots); |
| // Verify the dex cache has resolution methods in all resolved method slots |
| mirror::DexCache* dex_cache = class_linker_->FindDexCache(dex); |
| mirror::ObjectArray<mirror::ArtMethod>* resolved_methods = dex_cache->GetResolvedMethods(); |
| for (size_t i = 0; i < static_cast<size_t>(resolved_methods->GetLength()); i++) { |
| EXPECT_TRUE(resolved_methods->Get(i) != nullptr) << dex.GetLocation() << " i=" << i; |
| } |
| } |
| |
| static void TestRootVisitor(mirror::Object** root, void*, const RootInfo&) { |
| EXPECT_TRUE(*root != nullptr); |
| } |
| }; |
| |
| struct CheckOffset { |
| size_t cpp_offset; |
| const char* java_name; |
| CheckOffset(size_t c, const char* j) : cpp_offset(c), java_name(j) {} |
| }; |
| |
| template <typename T> |
| struct CheckOffsets { |
| CheckOffsets(bool is_static_in, const char* class_descriptor_in) |
| : is_static(is_static_in), class_descriptor(class_descriptor_in) {} |
| bool is_static; |
| std::string class_descriptor; |
| std::vector<CheckOffset> offsets; |
| |
| bool Check() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| Thread* self = Thread::Current(); |
| mirror::Class* klass = |
| Runtime::Current()->GetClassLinker()->FindSystemClass(self, class_descriptor.c_str()); |
| CHECK(klass != nullptr) << class_descriptor; |
| |
| bool error = false; |
| |
| // Art method have a different size due to the padding field. |
| if (!klass->IsArtMethodClass() && !klass->IsClassClass() && !is_static) { |
| size_t expected_size = is_static ? klass->GetClassSize(): klass->GetObjectSize(); |
| if (sizeof(T) != expected_size) { |
| LOG(ERROR) << "Class size mismatch:" |
| << " class=" << class_descriptor |
| << " Java=" << expected_size |
| << " C++=" << sizeof(T); |
| error = true; |
| } |
| } |
| |
| size_t num_fields = is_static ? klass->NumStaticFields() : klass->NumInstanceFields(); |
| if (offsets.size() != num_fields) { |
| LOG(ERROR) << "Field count mismatch:" |
| << " class=" << class_descriptor |
| << " Java=" << num_fields |
| << " C++=" << offsets.size(); |
| error = true; |
| } |
| |
| for (size_t i = 0; i < offsets.size(); i++) { |
| mirror::ArtField* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i); |
| StringPiece field_name(field->GetName()); |
| if (field_name != offsets[i].java_name) { |
| error = true; |
| } |
| } |
| if (error) { |
| for (size_t i = 0; i < offsets.size(); i++) { |
| CheckOffset& offset = offsets[i]; |
| mirror::ArtField* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i); |
| StringPiece field_name(field->GetName()); |
| if (field_name != offsets[i].java_name) { |
| LOG(ERROR) << "JAVA FIELD ORDER MISMATCH NEXT LINE:"; |
| } |
| LOG(ERROR) << "Java field order:" |
| << " i=" << i << " class=" << class_descriptor |
| << " Java=" << field_name |
| << " CheckOffsets=" << offset.java_name; |
| } |
| } |
| |
| for (size_t i = 0; i < offsets.size(); i++) { |
| CheckOffset& offset = offsets[i]; |
| mirror::ArtField* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i); |
| if (field->GetOffset().Uint32Value() != offset.cpp_offset) { |
| error = true; |
| } |
| } |
| if (error) { |
| for (size_t i = 0; i < offsets.size(); i++) { |
| CheckOffset& offset = offsets[i]; |
| mirror::ArtField* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i); |
| if (field->GetOffset().Uint32Value() != offset.cpp_offset) { |
| LOG(ERROR) << "OFFSET MISMATCH NEXT LINE:"; |
| } |
| LOG(ERROR) << "Offset: class=" << class_descriptor << " field=" << offset.java_name |
| << " Java=" << field->GetOffset().Uint32Value() << " C++=" << offset.cpp_offset; |
| } |
| } |
| |
| return !error; |
| }; |
| |
| private: |
| DISALLOW_IMPLICIT_CONSTRUCTORS(CheckOffsets); |
| }; |
| |
| // Note that ClassLinkerTest.ValidateFieldOrderOfJavaCppUnionClasses |
| // is first since if it is failing, others are unlikely to succeed. |
| |
| struct ObjectOffsets : public CheckOffsets<mirror::Object> { |
| ObjectOffsets() : CheckOffsets<mirror::Object>(false, "Ljava/lang/Object;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Object, klass_), "shadow$_klass_")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Object, monitor_), "shadow$_monitor_")); |
| #ifdef USE_BAKER_OR_BROOKS_READ_BARRIER |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Object, x_rb_ptr_), "shadow$_x_rb_ptr_")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Object, x_xpadding_), "shadow$_x_xpadding_")); |
| #endif |
| }; |
| }; |
| |
| struct ArtFieldOffsets : public CheckOffsets<mirror::ArtField> { |
| ArtFieldOffsets() : CheckOffsets<mirror::ArtField>(false, "Ljava/lang/reflect/ArtField;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtField, access_flags_), "accessFlags")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtField, declaring_class_), "declaringClass")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtField, field_dex_idx_), "fieldDexIndex")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtField, offset_), "offset")); |
| }; |
| }; |
| |
| struct ArtMethodOffsets : public CheckOffsets<mirror::ArtMethod> { |
| ArtMethodOffsets() : CheckOffsets<mirror::ArtMethod>(false, "Ljava/lang/reflect/ArtMethod;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, access_flags_), "accessFlags")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, declaring_class_), "declaringClass")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, dex_cache_resolved_methods_), "dexCacheResolvedMethods")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, dex_cache_resolved_types_), "dexCacheResolvedTypes")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, dex_code_item_offset_), "dexCodeItemOffset")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, dex_method_index_), "dexMethodIndex")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, method_index_), "methodIndex")); |
| }; |
| }; |
| |
| struct ClassOffsets : public CheckOffsets<mirror::Class> { |
| ClassOffsets() : CheckOffsets<mirror::Class>(false, "Ljava/lang/Class;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, access_flags_), "accessFlags")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, class_loader_), "classLoader")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, class_size_), "classSize")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, clinit_thread_id_), "clinitThreadId")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, component_type_), "componentType")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, dex_cache_), "dexCache")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, dex_cache_strings_), "dexCacheStrings")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, dex_class_def_idx_), "dexClassDefIndex")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, dex_type_idx_), "dexTypeIndex")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, direct_methods_), "directMethods")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, ifields_), "iFields")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, iftable_), "ifTable")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, name_), "name")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, num_reference_instance_fields_), "numReferenceInstanceFields")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, num_reference_static_fields_), "numReferenceStaticFields")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, object_size_), "objectSize")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, primitive_type_), "primitiveType")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, reference_instance_offsets_), "referenceInstanceOffsets")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, sfields_), "sFields")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, status_), "status")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, super_class_), "superClass")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, verify_error_class_), "verifyErrorClass")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, virtual_methods_), "virtualMethods")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, vtable_), "vtable")); |
| }; |
| }; |
| |
| struct StringOffsets : public CheckOffsets<mirror::String> { |
| StringOffsets() : CheckOffsets<mirror::String>(false, "Ljava/lang/String;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::String, count_), "count")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::String, hash_code_), "hashCode")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::String, offset_), "offset")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::String, array_), "value")); |
| }; |
| }; |
| |
| struct ThrowableOffsets : public CheckOffsets<mirror::Throwable> { |
| ThrowableOffsets() : CheckOffsets<mirror::Throwable>(false, "Ljava/lang/Throwable;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Throwable, cause_), "cause")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Throwable, detail_message_), "detailMessage")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Throwable, stack_state_), "stackState")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Throwable, stack_trace_), "stackTrace")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Throwable, suppressed_exceptions_), "suppressedExceptions")); |
| }; |
| }; |
| |
| struct StackTraceElementOffsets : public CheckOffsets<mirror::StackTraceElement> { |
| StackTraceElementOffsets() : CheckOffsets<mirror::StackTraceElement>(false, "Ljava/lang/StackTraceElement;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::StackTraceElement, declaring_class_), "declaringClass")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::StackTraceElement, file_name_), "fileName")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::StackTraceElement, line_number_), "lineNumber")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::StackTraceElement, method_name_), "methodName")); |
| }; |
| }; |
| |
| struct ClassLoaderOffsets : public CheckOffsets<mirror::ClassLoader> { |
| ClassLoaderOffsets() : CheckOffsets<mirror::ClassLoader>(false, "Ljava/lang/ClassLoader;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ClassLoader, packages_), "packages")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ClassLoader, parent_), "parent")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ClassLoader, proxyCache_), "proxyCache")); |
| }; |
| }; |
| |
| struct ProxyOffsets : public CheckOffsets<mirror::Proxy> { |
| ProxyOffsets() : CheckOffsets<mirror::Proxy>(false, "Ljava/lang/reflect/Proxy;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Proxy, h_), "h")); |
| }; |
| }; |
| |
| struct DexCacheOffsets : public CheckOffsets<mirror::DexCache> { |
| DexCacheOffsets() : CheckOffsets<mirror::DexCache>(false, "Ljava/lang/DexCache;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, dex_), "dex")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, dex_file_), "dexFile")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, location_), "location")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, resolved_fields_), "resolvedFields")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, resolved_methods_), "resolvedMethods")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, resolved_types_), "resolvedTypes")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, strings_), "strings")); |
| }; |
| }; |
| |
| struct ReferenceOffsets : public CheckOffsets<mirror::Reference> { |
| ReferenceOffsets() : CheckOffsets<mirror::Reference>(false, "Ljava/lang/ref/Reference;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Reference, pending_next_), "pendingNext")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Reference, queue_), "queue")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Reference, queue_next_), "queueNext")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Reference, referent_), "referent")); |
| }; |
| }; |
| |
| struct FinalizerReferenceOffsets : public CheckOffsets<mirror::FinalizerReference> { |
| FinalizerReferenceOffsets() : CheckOffsets<mirror::FinalizerReference>(false, "Ljava/lang/ref/FinalizerReference;") { |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::FinalizerReference, next_), "next")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::FinalizerReference, prev_), "prev")); |
| offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::FinalizerReference, zombie_), "zombie")); |
| }; |
| }; |
| |
| // C++ fields must exactly match the fields in the Java classes. If this fails, |
| // reorder the fields in the C++ class. Managed class fields are ordered by |
| // ClassLinker::LinkFields. |
| TEST_F(ClassLinkerTest, ValidateFieldOrderOfJavaCppUnionClasses) { |
| ScopedObjectAccess soa(Thread::Current()); |
| EXPECT_TRUE(ObjectOffsets().Check()); |
| EXPECT_TRUE(ArtFieldOffsets().Check()); |
| EXPECT_TRUE(ArtMethodOffsets().Check()); |
| EXPECT_TRUE(ClassOffsets().Check()); |
| EXPECT_TRUE(StringOffsets().Check()); |
| EXPECT_TRUE(ThrowableOffsets().Check()); |
| EXPECT_TRUE(StackTraceElementOffsets().Check()); |
| EXPECT_TRUE(ClassLoaderOffsets().Check()); |
| EXPECT_TRUE(ProxyOffsets().Check()); |
| EXPECT_TRUE(DexCacheOffsets().Check()); |
| EXPECT_TRUE(ReferenceOffsets().Check()); |
| EXPECT_TRUE(FinalizerReferenceOffsets().Check()); |
| } |
| |
| TEST_F(ClassLinkerTest, FindClassNonexistent) { |
| ScopedObjectAccess soa(Thread::Current()); |
| AssertNonExistentClass("NoSuchClass;"); |
| AssertNonExistentClass("LNoSuchClass;"); |
| } |
| |
| TEST_F(ClassLinkerTest, FindClassNested) { |
| ScopedObjectAccess soa(Thread::Current()); |
| StackHandleScope<1> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("Nested")))); |
| |
| mirror::Class* outer = class_linker_->FindClass(soa.Self(), "LNested;", class_loader); |
| ASSERT_TRUE(outer != nullptr); |
| EXPECT_EQ(0U, outer->NumVirtualMethods()); |
| EXPECT_EQ(1U, outer->NumDirectMethods()); |
| |
| mirror::Class* inner = class_linker_->FindClass(soa.Self(), "LNested$Inner;", class_loader); |
| ASSERT_TRUE(inner != nullptr); |
| EXPECT_EQ(0U, inner->NumVirtualMethods()); |
| EXPECT_EQ(1U, inner->NumDirectMethods()); |
| } |
| |
| TEST_F(ClassLinkerTest, FindClass_Primitives) { |
| ScopedObjectAccess soa(Thread::Current()); |
| const std::string expected("BCDFIJSZV"); |
| for (int ch = 1; ch < 256; ++ch) { |
| std::string descriptor; |
| descriptor.push_back(ch); |
| if (expected.find(ch) == std::string::npos) { |
| AssertNonExistentClass(descriptor); |
| } else { |
| AssertPrimitiveClass(descriptor); |
| } |
| } |
| } |
| |
| TEST_F(ClassLinkerTest, FindClass) { |
| ScopedObjectAccess soa(Thread::Current()); |
| mirror::Class* JavaLangObject = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;"); |
| ASSERT_TRUE(JavaLangObject != nullptr); |
| ASSERT_TRUE(JavaLangObject->GetClass() != nullptr); |
| ASSERT_EQ(JavaLangObject->GetClass(), JavaLangObject->GetClass()->GetClass()); |
| EXPECT_EQ(JavaLangObject, JavaLangObject->GetClass()->GetSuperClass()); |
| std::string temp; |
| ASSERT_STREQ(JavaLangObject->GetDescriptor(&temp), "Ljava/lang/Object;"); |
| EXPECT_TRUE(JavaLangObject->GetSuperClass() == nullptr); |
| EXPECT_FALSE(JavaLangObject->HasSuperClass()); |
| EXPECT_TRUE(JavaLangObject->GetClassLoader() == nullptr); |
| EXPECT_EQ(mirror::Class::kStatusInitialized, JavaLangObject->GetStatus()); |
| EXPECT_FALSE(JavaLangObject->IsErroneous()); |
| EXPECT_TRUE(JavaLangObject->IsLoaded()); |
| EXPECT_TRUE(JavaLangObject->IsResolved()); |
| EXPECT_TRUE(JavaLangObject->IsVerified()); |
| EXPECT_TRUE(JavaLangObject->IsInitialized()); |
| EXPECT_FALSE(JavaLangObject->IsArrayInstance()); |
| EXPECT_FALSE(JavaLangObject->IsArrayClass()); |
| EXPECT_TRUE(JavaLangObject->GetComponentType() == nullptr); |
| EXPECT_FALSE(JavaLangObject->IsInterface()); |
| EXPECT_TRUE(JavaLangObject->IsPublic()); |
| EXPECT_FALSE(JavaLangObject->IsFinal()); |
| EXPECT_FALSE(JavaLangObject->IsPrimitive()); |
| EXPECT_FALSE(JavaLangObject->IsSynthetic()); |
| EXPECT_EQ(2U, JavaLangObject->NumDirectMethods()); |
| EXPECT_EQ(11U, JavaLangObject->NumVirtualMethods()); |
| if (!kUseBakerOrBrooksReadBarrier) { |
| EXPECT_EQ(2U, JavaLangObject->NumInstanceFields()); |
| } else { |
| EXPECT_EQ(4U, JavaLangObject->NumInstanceFields()); |
| } |
| EXPECT_STREQ(JavaLangObject->GetInstanceField(0)->GetName(), "shadow$_klass_"); |
| EXPECT_STREQ(JavaLangObject->GetInstanceField(1)->GetName(), "shadow$_monitor_"); |
| if (kUseBakerOrBrooksReadBarrier) { |
| EXPECT_STREQ(JavaLangObject->GetInstanceField(2)->GetName(), "shadow$_x_rb_ptr_"); |
| EXPECT_STREQ(JavaLangObject->GetInstanceField(3)->GetName(), "shadow$_x_xpadding_"); |
| } |
| |
| EXPECT_EQ(0U, JavaLangObject->NumStaticFields()); |
| EXPECT_EQ(0U, JavaLangObject->NumDirectInterfaces()); |
| |
| StackHandleScope<1> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("MyClass")))); |
| AssertNonExistentClass("LMyClass;"); |
| mirror::Class* MyClass = class_linker_->FindClass(soa.Self(), "LMyClass;", class_loader); |
| ASSERT_TRUE(MyClass != nullptr); |
| ASSERT_TRUE(MyClass->GetClass() != nullptr); |
| ASSERT_EQ(MyClass->GetClass(), MyClass->GetClass()->GetClass()); |
| EXPECT_EQ(JavaLangObject, MyClass->GetClass()->GetSuperClass()); |
| ASSERT_STREQ(MyClass->GetDescriptor(&temp), "LMyClass;"); |
| EXPECT_TRUE(MyClass->GetSuperClass() == JavaLangObject); |
| EXPECT_TRUE(MyClass->HasSuperClass()); |
| EXPECT_EQ(class_loader.Get(), MyClass->GetClassLoader()); |
| EXPECT_EQ(mirror::Class::kStatusResolved, MyClass->GetStatus()); |
| EXPECT_FALSE(MyClass->IsErroneous()); |
| EXPECT_TRUE(MyClass->IsLoaded()); |
| EXPECT_TRUE(MyClass->IsResolved()); |
| EXPECT_FALSE(MyClass->IsVerified()); |
| EXPECT_FALSE(MyClass->IsInitialized()); |
| EXPECT_FALSE(MyClass->IsArrayInstance()); |
| EXPECT_FALSE(MyClass->IsArrayClass()); |
| EXPECT_TRUE(MyClass->GetComponentType() == nullptr); |
| EXPECT_FALSE(MyClass->IsInterface()); |
| EXPECT_FALSE(MyClass->IsPublic()); |
| EXPECT_FALSE(MyClass->IsFinal()); |
| EXPECT_FALSE(MyClass->IsPrimitive()); |
| EXPECT_FALSE(MyClass->IsSynthetic()); |
| EXPECT_EQ(1U, MyClass->NumDirectMethods()); |
| EXPECT_EQ(0U, MyClass->NumVirtualMethods()); |
| EXPECT_EQ(0U, MyClass->NumInstanceFields()); |
| EXPECT_EQ(0U, MyClass->NumStaticFields()); |
| EXPECT_EQ(0U, MyClass->NumDirectInterfaces()); |
| |
| EXPECT_EQ(JavaLangObject->GetClass()->GetClass(), MyClass->GetClass()->GetClass()); |
| |
| // created by class_linker |
| AssertArrayClass("[C", "C", nullptr); |
| AssertArrayClass("[Ljava/lang/Object;", "Ljava/lang/Object;", nullptr); |
| // synthesized on the fly |
| AssertArrayClass("[[C", "[C", nullptr); |
| AssertArrayClass("[[[LMyClass;", "[[LMyClass;", class_loader.Get()); |
| // or not available at all |
| AssertNonExistentClass("[[[[LNonExistentClass;"); |
| } |
| |
| TEST_F(ClassLinkerTest, LibCore) { |
| ScopedObjectAccess soa(Thread::Current()); |
| ASSERT_TRUE(java_lang_dex_file_ != nullptr); |
| AssertDexFile(*java_lang_dex_file_, nullptr); |
| } |
| |
| // The first reference array element must be a multiple of 4 bytes from the |
| // start of the object |
| TEST_F(ClassLinkerTest, ValidateObjectArrayElementsOffset) { |
| ScopedObjectAccess soa(Thread::Current()); |
| mirror::Class* array_class = class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/String;"); |
| mirror::ObjectArray<mirror::String>* array = |
| mirror::ObjectArray<mirror::String>::Alloc(soa.Self(), array_class, 0); |
| uintptr_t data_offset = |
| reinterpret_cast<uintptr_t>(array->GetRawData(sizeof(mirror::HeapReference<mirror::String>), |
| 0)); |
| if (sizeof(mirror::HeapReference<mirror::String>) == sizeof(int32_t)) { |
| EXPECT_TRUE(IsAligned<4>(data_offset)); // Check 4 byte alignment. |
| } else { |
| EXPECT_TRUE(IsAligned<8>(data_offset)); // Check 8 byte alignment. |
| } |
| } |
| |
| TEST_F(ClassLinkerTest, ValidatePrimitiveArrayElementsOffset) { |
| ScopedObjectAccess soa(Thread::Current()); |
| StackHandleScope<5> hs(soa.Self()); |
| Handle<mirror::LongArray> long_array(hs.NewHandle(mirror::LongArray::Alloc(soa.Self(), 0))); |
| EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "[J"), long_array->GetClass()); |
| uintptr_t data_offset = reinterpret_cast<uintptr_t>(long_array->GetData()); |
| EXPECT_TRUE(IsAligned<8>(data_offset)); // Longs require 8 byte alignment |
| |
| Handle<mirror::DoubleArray> double_array(hs.NewHandle(mirror::DoubleArray::Alloc(soa.Self(), 0))); |
| EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "[D"), double_array->GetClass()); |
| data_offset = reinterpret_cast<uintptr_t>(double_array->GetData()); |
| EXPECT_TRUE(IsAligned<8>(data_offset)); // Doubles require 8 byte alignment |
| |
| Handle<mirror::IntArray> int_array(hs.NewHandle(mirror::IntArray::Alloc(soa.Self(), 0))); |
| EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "[I"), int_array->GetClass()); |
| data_offset = reinterpret_cast<uintptr_t>(int_array->GetData()); |
| EXPECT_TRUE(IsAligned<4>(data_offset)); // Ints require 4 byte alignment |
| |
| Handle<mirror::CharArray> char_array(hs.NewHandle(mirror::CharArray::Alloc(soa.Self(), 0))); |
| EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "[C"), char_array->GetClass()); |
| data_offset = reinterpret_cast<uintptr_t>(char_array->GetData()); |
| EXPECT_TRUE(IsAligned<2>(data_offset)); // Chars require 2 byte alignment |
| |
| Handle<mirror::ShortArray> short_array(hs.NewHandle(mirror::ShortArray::Alloc(soa.Self(), 0))); |
| EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "[S"), short_array->GetClass()); |
| data_offset = reinterpret_cast<uintptr_t>(short_array->GetData()); |
| EXPECT_TRUE(IsAligned<2>(data_offset)); // Shorts require 2 byte alignment |
| |
| // Take it as given that bytes and booleans have byte alignment |
| } |
| |
| TEST_F(ClassLinkerTest, ValidateBoxedTypes) { |
| // Validate that the "value" field is always the 0th field in each of java.lang's box classes. |
| // This lets UnboxPrimitive avoid searching for the field by name at runtime. |
| ScopedObjectAccess soa(Thread::Current()); |
| NullHandle<mirror::ClassLoader> class_loader; |
| mirror::Class* c; |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Boolean;", class_loader); |
| EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName()); |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Byte;", class_loader); |
| EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName()); |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Character;", class_loader); |
| EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName()); |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Double;", class_loader); |
| EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName()); |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Float;", class_loader); |
| EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName()); |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Integer;", class_loader); |
| EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName()); |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Long;", class_loader); |
| EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName()); |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Short;", class_loader); |
| EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName()); |
| } |
| |
| TEST_F(ClassLinkerTest, TwoClassLoadersOneClass) { |
| ScopedObjectAccess soa(Thread::Current()); |
| StackHandleScope<2> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader_1( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("MyClass")))); |
| Handle<mirror::ClassLoader> class_loader_2( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("MyClass")))); |
| mirror::Class* MyClass_1 = class_linker_->FindClass(soa.Self(), "LMyClass;", class_loader_1); |
| mirror::Class* MyClass_2 = class_linker_->FindClass(soa.Self(), "LMyClass;", class_loader_2); |
| EXPECT_TRUE(MyClass_1 != nullptr); |
| EXPECT_TRUE(MyClass_2 != nullptr); |
| EXPECT_NE(MyClass_1, MyClass_2); |
| } |
| |
| TEST_F(ClassLinkerTest, StaticFields) { |
| ScopedObjectAccess soa(Thread::Current()); |
| StackHandleScope<2> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("Statics")))); |
| Handle<mirror::Class> statics( |
| hs.NewHandle(class_linker_->FindClass(soa.Self(), "LStatics;", class_loader))); |
| class_linker_->EnsureInitialized(soa.Self(), statics, true, true); |
| |
| // Static final primitives that are initialized by a compile-time constant |
| // expression resolve to a copy of a constant value from the constant pool. |
| // So <clinit> should be null. |
| mirror::ArtMethod* clinit = statics->FindDirectMethod("<clinit>", "()V"); |
| EXPECT_TRUE(clinit == nullptr); |
| |
| EXPECT_EQ(9U, statics->NumStaticFields()); |
| |
| mirror::ArtField* s0 = mirror::Class::FindStaticField(soa.Self(), statics, "s0", "Z"); |
| std::string temp; |
| EXPECT_STREQ(s0->GetClass()->GetDescriptor(&temp), "Ljava/lang/reflect/ArtField;"); |
| EXPECT_EQ(s0->GetTypeAsPrimitiveType(), Primitive::kPrimBoolean); |
| EXPECT_EQ(true, s0->GetBoolean(statics.Get())); |
| s0->SetBoolean<false>(statics.Get(), false); |
| |
| mirror::ArtField* s1 = mirror::Class::FindStaticField(soa.Self(), statics, "s1", "B"); |
| EXPECT_EQ(s1->GetTypeAsPrimitiveType(), Primitive::kPrimByte); |
| EXPECT_EQ(5, s1->GetByte(statics.Get())); |
| s1->SetByte<false>(statics.Get(), 6); |
| |
| mirror::ArtField* s2 = mirror::Class::FindStaticField(soa.Self(), statics, "s2", "C"); |
| EXPECT_EQ(s2->GetTypeAsPrimitiveType(), Primitive::kPrimChar); |
| EXPECT_EQ('a', s2->GetChar(statics.Get())); |
| s2->SetChar<false>(statics.Get(), 'b'); |
| |
| mirror::ArtField* s3 = mirror::Class::FindStaticField(soa.Self(), statics, "s3", "S"); |
| EXPECT_EQ(s3->GetTypeAsPrimitiveType(), Primitive::kPrimShort); |
| EXPECT_EQ(-536, s3->GetShort(statics.Get())); |
| s3->SetShort<false>(statics.Get(), -535); |
| |
| mirror::ArtField* s4 = mirror::Class::FindStaticField(soa.Self(), statics, "s4", "I"); |
| EXPECT_EQ(s4->GetTypeAsPrimitiveType(), Primitive::kPrimInt); |
| EXPECT_EQ(2000000000, s4->GetInt(statics.Get())); |
| s4->SetInt<false>(statics.Get(), 2000000001); |
| |
| mirror::ArtField* s5 = mirror::Class::FindStaticField(soa.Self(), statics, "s5", "J"); |
| EXPECT_EQ(s5->GetTypeAsPrimitiveType(), Primitive::kPrimLong); |
| EXPECT_EQ(0x1234567890abcdefLL, s5->GetLong(statics.Get())); |
| s5->SetLong<false>(statics.Get(), INT64_C(0x34567890abcdef12)); |
| |
| mirror::ArtField* s6 = mirror::Class::FindStaticField(soa.Self(), statics, "s6", "F"); |
| EXPECT_EQ(s6->GetTypeAsPrimitiveType(), Primitive::kPrimFloat); |
| EXPECT_DOUBLE_EQ(0.5, s6->GetFloat(statics.Get())); |
| s6->SetFloat<false>(statics.Get(), 0.75); |
| |
| mirror::ArtField* s7 = mirror::Class::FindStaticField(soa.Self(), statics, "s7", "D"); |
| EXPECT_EQ(s7->GetTypeAsPrimitiveType(), Primitive::kPrimDouble); |
| EXPECT_DOUBLE_EQ(16777217.0, s7->GetDouble(statics.Get())); |
| s7->SetDouble<false>(statics.Get(), 16777219); |
| |
| mirror::ArtField* s8 = mirror::Class::FindStaticField(soa.Self(), statics, "s8", |
| "Ljava/lang/String;"); |
| EXPECT_EQ(s8->GetTypeAsPrimitiveType(), Primitive::kPrimNot); |
| EXPECT_TRUE(s8->GetObject(statics.Get())->AsString()->Equals("android")); |
| s8->SetObject<false>(s8->GetDeclaringClass(), |
| mirror::String::AllocFromModifiedUtf8(soa.Self(), "robot")); |
| |
| // TODO: Remove EXPECT_FALSE when GCC can handle EXPECT_EQ |
| // http://code.google.com/p/googletest/issues/detail?id=322 |
| EXPECT_FALSE(s0->GetBoolean(statics.Get())); |
| EXPECT_EQ(6, s1->GetByte(statics.Get())); |
| EXPECT_EQ('b', s2->GetChar(statics.Get())); |
| EXPECT_EQ(-535, s3->GetShort(statics.Get())); |
| EXPECT_EQ(2000000001, s4->GetInt(statics.Get())); |
| EXPECT_EQ(INT64_C(0x34567890abcdef12), s5->GetLong(statics.Get())); |
| EXPECT_FLOAT_EQ(0.75, s6->GetFloat(statics.Get())); |
| EXPECT_DOUBLE_EQ(16777219.0, s7->GetDouble(statics.Get())); |
| EXPECT_TRUE(s8->GetObject(statics.Get())->AsString()->Equals("robot")); |
| } |
| |
| TEST_F(ClassLinkerTest, Interfaces) { |
| ScopedObjectAccess soa(Thread::Current()); |
| StackHandleScope<6> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("Interfaces")))); |
| Handle<mirror::Class> I( |
| hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInterfaces$I;", class_loader))); |
| Handle<mirror::Class> J( |
| hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInterfaces$J;", class_loader))); |
| Handle<mirror::Class> K( |
| hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInterfaces$K;", class_loader))); |
| Handle<mirror::Class> A( |
| hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInterfaces$A;", class_loader))); |
| Handle<mirror::Class> B( |
| hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInterfaces$B;", class_loader))); |
| EXPECT_TRUE(I->IsAssignableFrom(A.Get())); |
| EXPECT_TRUE(J->IsAssignableFrom(A.Get())); |
| EXPECT_TRUE(J->IsAssignableFrom(K.Get())); |
| EXPECT_TRUE(K->IsAssignableFrom(B.Get())); |
| EXPECT_TRUE(J->IsAssignableFrom(B.Get())); |
| |
| const Signature void_sig = I->GetDexCache()->GetDexFile()->CreateSignature("()V"); |
| mirror::ArtMethod* Ii = I->FindVirtualMethod("i", void_sig); |
| mirror::ArtMethod* Jj1 = J->FindVirtualMethod("j1", void_sig); |
| mirror::ArtMethod* Jj2 = J->FindVirtualMethod("j2", void_sig); |
| mirror::ArtMethod* Kj1 = K->FindInterfaceMethod("j1", void_sig); |
| mirror::ArtMethod* Kj2 = K->FindInterfaceMethod("j2", void_sig); |
| mirror::ArtMethod* Kk = K->FindInterfaceMethod("k", void_sig); |
| mirror::ArtMethod* Ai = A->FindVirtualMethod("i", void_sig); |
| mirror::ArtMethod* Aj1 = A->FindVirtualMethod("j1", void_sig); |
| mirror::ArtMethod* Aj2 = A->FindVirtualMethod("j2", void_sig); |
| ASSERT_TRUE(Ii != nullptr); |
| ASSERT_TRUE(Jj1 != nullptr); |
| ASSERT_TRUE(Jj2 != nullptr); |
| ASSERT_TRUE(Kj1 != nullptr); |
| ASSERT_TRUE(Kj2 != nullptr); |
| ASSERT_TRUE(Kk != nullptr); |
| ASSERT_TRUE(Ai != nullptr); |
| ASSERT_TRUE(Aj1 != nullptr); |
| ASSERT_TRUE(Aj2 != nullptr); |
| EXPECT_NE(Ii, Ai); |
| EXPECT_NE(Jj1, Aj1); |
| EXPECT_NE(Jj2, Aj2); |
| EXPECT_EQ(Kj1, Jj1); |
| EXPECT_EQ(Kj2, Jj2); |
| EXPECT_EQ(Ai, A->FindVirtualMethodForInterface(Ii)); |
| EXPECT_EQ(Aj1, A->FindVirtualMethodForInterface(Jj1)); |
| EXPECT_EQ(Aj2, A->FindVirtualMethodForInterface(Jj2)); |
| EXPECT_EQ(Ai, A->FindVirtualMethodForVirtualOrInterface(Ii)); |
| EXPECT_EQ(Aj1, A->FindVirtualMethodForVirtualOrInterface(Jj1)); |
| EXPECT_EQ(Aj2, A->FindVirtualMethodForVirtualOrInterface(Jj2)); |
| |
| mirror::ArtField* Afoo = mirror::Class::FindStaticField(soa.Self(), A, "foo", |
| "Ljava/lang/String;"); |
| mirror::ArtField* Bfoo = mirror::Class::FindStaticField(soa.Self(), B, "foo", |
| "Ljava/lang/String;"); |
| mirror::ArtField* Jfoo = mirror::Class::FindStaticField(soa.Self(), J, "foo", |
| "Ljava/lang/String;"); |
| mirror::ArtField* Kfoo = mirror::Class::FindStaticField(soa.Self(), K, "foo", |
| "Ljava/lang/String;"); |
| ASSERT_TRUE(Afoo != nullptr); |
| EXPECT_EQ(Afoo, Bfoo); |
| EXPECT_EQ(Afoo, Jfoo); |
| EXPECT_EQ(Afoo, Kfoo); |
| } |
| |
| TEST_F(ClassLinkerTest, ResolveVerifyAndClinit) { |
| // pretend we are trying to get the static storage for the StaticsFromCode class. |
| |
| // case 1, get the uninitialized storage from StaticsFromCode.<clinit> |
| // case 2, get the initialized storage from StaticsFromCode.getS0 |
| |
| ScopedObjectAccess soa(Thread::Current()); |
| jobject jclass_loader = LoadDex("StaticsFromCode"); |
| StackHandleScope<1> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader))); |
| const DexFile* dex_file = Runtime::Current()->GetCompileTimeClassPath(jclass_loader)[0]; |
| CHECK(dex_file != nullptr); |
| mirror::Class* klass = class_linker_->FindClass(soa.Self(), "LStaticsFromCode;", class_loader); |
| mirror::ArtMethod* clinit = klass->FindClassInitializer(); |
| mirror::ArtMethod* getS0 = klass->FindDirectMethod("getS0", "()Ljava/lang/Object;"); |
| const DexFile::StringId* string_id = dex_file->FindStringId("LStaticsFromCode;"); |
| ASSERT_TRUE(string_id != nullptr); |
| const DexFile::TypeId* type_id = dex_file->FindTypeId(dex_file->GetIndexForStringId(*string_id)); |
| ASSERT_TRUE(type_id != nullptr); |
| uint32_t type_idx = dex_file->GetIndexForTypeId(*type_id); |
| mirror::Class* uninit = ResolveVerifyAndClinit(type_idx, clinit, Thread::Current(), true, false); |
| EXPECT_TRUE(uninit != nullptr); |
| EXPECT_FALSE(uninit->IsInitialized()); |
| mirror::Class* init = ResolveVerifyAndClinit(type_idx, getS0, Thread::Current(), true, false); |
| EXPECT_TRUE(init != nullptr); |
| EXPECT_TRUE(init->IsInitialized()); |
| } |
| |
| TEST_F(ClassLinkerTest, FinalizableBit) { |
| ScopedObjectAccess soa(Thread::Current()); |
| mirror::Class* c; |
| |
| // Object has a finalize method, but we know it's empty. |
| c = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;"); |
| EXPECT_FALSE(c->IsFinalizable()); |
| |
| // Enum has a finalize method to prevent its subclasses from implementing one. |
| c = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Enum;"); |
| EXPECT_FALSE(c->IsFinalizable()); |
| |
| // RoundingMode is an enum. |
| c = class_linker_->FindSystemClass(soa.Self(), "Ljava/math/RoundingMode;"); |
| EXPECT_FALSE(c->IsFinalizable()); |
| |
| // RandomAccessFile extends Object and overrides finalize. |
| c = class_linker_->FindSystemClass(soa.Self(), "Ljava/io/RandomAccessFile;"); |
| EXPECT_TRUE(c->IsFinalizable()); |
| |
| // FileInputStream is finalizable and extends InputStream which isn't. |
| c = class_linker_->FindSystemClass(soa.Self(), "Ljava/io/InputStream;"); |
| EXPECT_FALSE(c->IsFinalizable()); |
| c = class_linker_->FindSystemClass(soa.Self(), "Ljava/io/FileInputStream;"); |
| EXPECT_TRUE(c->IsFinalizable()); |
| |
| // ScheduledThreadPoolExecutor doesn't have a finalize method but |
| // extends ThreadPoolExecutor which does. |
| c = class_linker_->FindSystemClass(soa.Self(), "Ljava/util/concurrent/ThreadPoolExecutor;"); |
| EXPECT_TRUE(c->IsFinalizable()); |
| c = class_linker_->FindSystemClass(soa.Self(), "Ljava/util/concurrent/ScheduledThreadPoolExecutor;"); |
| EXPECT_TRUE(c->IsFinalizable()); |
| } |
| |
| TEST_F(ClassLinkerTest, ClassRootDescriptors) { |
| ScopedObjectAccess soa(Thread::Current()); |
| std::string temp; |
| for (int i = 0; i < ClassLinker::kClassRootsMax; i++) { |
| mirror::Class* klass = class_linker_->GetClassRoot(ClassLinker::ClassRoot(i)); |
| EXPECT_GT(strlen(klass->GetDescriptor(&temp)), 0U); |
| EXPECT_STREQ(klass->GetDescriptor(&temp), |
| class_linker_->GetClassRootDescriptor(ClassLinker::ClassRoot(i))) << " i = " << i; |
| } |
| } |
| |
| TEST_F(ClassLinkerTest, ValidatePredefinedClassSizes) { |
| ScopedObjectAccess soa(Thread::Current()); |
| NullHandle<mirror::ClassLoader> class_loader; |
| mirror::Class* c; |
| |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Class;", class_loader); |
| EXPECT_EQ(c->GetClassSize(), mirror::Class::ClassClassSize()); |
| |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Object;", class_loader); |
| EXPECT_EQ(c->GetClassSize(), mirror::Object::ClassSize()); |
| |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/String;", class_loader); |
| EXPECT_EQ(c->GetClassSize(), mirror::String::ClassSize()); |
| |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/DexCache;", class_loader); |
| EXPECT_EQ(c->GetClassSize(), mirror::DexCache::ClassSize()); |
| |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/reflect/ArtField;", class_loader); |
| EXPECT_EQ(c->GetClassSize(), mirror::ArtField::ClassSize()); |
| |
| c = class_linker_->FindClass(soa.Self(), "Ljava/lang/reflect/ArtMethod;", class_loader); |
| EXPECT_EQ(c->GetClassSize(), mirror::ArtMethod::ClassSize()); |
| } |
| |
| static void CheckMethod(mirror::ArtMethod* method, bool verified) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| if (!method->IsNative() && !method->IsAbstract()) { |
| EXPECT_EQ((method->GetAccessFlags() & kAccPreverified) != 0U, verified) |
| << PrettyMethod(method, true); |
| } |
| } |
| |
| static void CheckPreverified(mirror::Class* c, bool preverified) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| EXPECT_EQ((c->GetAccessFlags() & kAccPreverified) != 0U, preverified) |
| << "Class " << PrettyClass(c) << " not as expected"; |
| for (uint32_t i = 0; i < c->NumDirectMethods(); ++i) { |
| CheckMethod(c->GetDirectMethod(i), preverified); |
| } |
| for (uint32_t i = 0; i < c->NumVirtualMethods(); ++i) { |
| CheckMethod(c->GetVirtualMethod(i), preverified); |
| } |
| } |
| |
| TEST_F(ClassLinkerTest, Preverified_InitializedBoot) { |
| ScopedObjectAccess soa(Thread::Current()); |
| |
| mirror::Class* JavaLangObject = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;"); |
| ASSERT_TRUE(JavaLangObject != nullptr); |
| EXPECT_TRUE(JavaLangObject->IsInitialized()) << "Not testing already initialized class from the " |
| "core"; |
| CheckPreverified(JavaLangObject, true); |
| } |
| |
| TEST_F(ClassLinkerTest, Preverified_UninitializedBoot) { |
| ScopedObjectAccess soa(Thread::Current()); |
| |
| StackHandleScope<1> hs(soa.Self()); |
| |
| Handle<mirror::Class> security_manager(hs.NewHandle(class_linker_->FindSystemClass( |
| soa.Self(), "Ljava/lang/SecurityManager;"))); |
| EXPECT_FALSE(security_manager->IsInitialized()) << "Not testing uninitialized class from the " |
| "core"; |
| |
| CheckPreverified(security_manager.Get(), false); |
| |
| class_linker_->EnsureInitialized(soa.Self(), security_manager, true, true); |
| CheckPreverified(security_manager.Get(), true); |
| } |
| |
| TEST_F(ClassLinkerTest, Preverified_App) { |
| ScopedObjectAccess soa(Thread::Current()); |
| |
| StackHandleScope<2> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("Statics")))); |
| Handle<mirror::Class> statics( |
| hs.NewHandle(class_linker_->FindClass(soa.Self(), "LStatics;", class_loader))); |
| |
| CheckPreverified(statics.Get(), false); |
| |
| class_linker_->EnsureInitialized(soa.Self(), statics, true, true); |
| CheckPreverified(statics.Get(), true); |
| } |
| |
| TEST_F(ClassLinkerTest, IsBootStrapClassLoaded) { |
| ScopedObjectAccess soa(Thread::Current()); |
| |
| StackHandleScope<3> hs(soa.Self()); |
| Handle<mirror::ClassLoader> class_loader( |
| hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("Statics")))); |
| |
| // java.lang.Object is a bootstrap class. |
| Handle<mirror::Class> jlo_class( |
| hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;"))); |
| ASSERT_TRUE(jlo_class.Get() != nullptr); |
| EXPECT_TRUE(jlo_class.Get()->IsBootStrapClassLoaded()); |
| |
| // Statics is not a bootstrap class. |
| Handle<mirror::Class> statics( |
| hs.NewHandle(class_linker_->FindClass(soa.Self(), "LStatics;", class_loader))); |
| ASSERT_TRUE(statics.Get() != nullptr); |
| EXPECT_FALSE(statics.Get()->IsBootStrapClassLoaded()); |
| } |
| |
| } // namespace art |