blob: 1eb5e0d1c4603910574373cfead5944f88daaaf0 [file] [log] [blame]
/*
* 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 <string>
#include "UniquePtr.h"
#include "common_test.h"
#include "dex_cache.h"
#include "dex_file.h"
#include "heap.h"
#include "runtime_support.h"
namespace art {
class ClassLinkerTest : public CommonTest {
protected:
void AssertNonExistentClass(const std::string& descriptor)
SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
EXPECT_TRUE(class_linker_->FindSystemClass(descriptor.c_str()) == NULL);
Thread* self = Thread::Current();
EXPECT_TRUE(self->IsExceptionPending());
Object* exception = self->GetException();
self->ClearException();
Class* exception_class = class_linker_->FindSystemClass("Ljava/lang/NoClassDefFoundError;");
EXPECT_TRUE(exception->InstanceOf(exception_class));
}
void AssertPrimitiveClass(const std::string& descriptor)
SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
AssertPrimitiveClass(descriptor, class_linker_->FindSystemClass(descriptor.c_str()));
}
void AssertPrimitiveClass(const std::string& descriptor, const Class* primitive)
SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
ClassHelper primitive_ch(primitive);
ASSERT_TRUE(primitive != NULL);
ASSERT_TRUE(primitive->GetClass() != NULL);
ASSERT_EQ(primitive->GetClass(), primitive->GetClass()->GetClass());
EXPECT_TRUE(primitive->GetClass()->GetSuperClass() != NULL);
ASSERT_STREQ(descriptor.c_str(), primitive_ch.GetDescriptor());
EXPECT_TRUE(primitive->GetSuperClass() == NULL);
EXPECT_FALSE(primitive->HasSuperClass());
EXPECT_TRUE(primitive->GetClassLoader() == NULL);
EXPECT_EQ(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() == NULL);
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_ch.NumDirectInterfaces());
EXPECT_TRUE(primitive->GetVTable() == NULL);
EXPECT_EQ(0, primitive->GetIfTableCount());
EXPECT_TRUE(primitive->GetIfTable() == NULL);
}
void AssertArrayClass(const std::string& array_descriptor,
const std::string& component_type,
ClassLoader* class_loader)
SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
Class* array = class_linker_->FindClass(array_descriptor.c_str(), class_loader);
ClassHelper array_component_ch(array->GetComponentType());
EXPECT_STREQ(component_type.c_str(), array_component_ch.GetDescriptor());
EXPECT_EQ(class_loader, array->GetClassLoader());
AssertArrayClass(array_descriptor, array);
}
void AssertArrayClass(const std::string& array_descriptor, Class* array)
SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
ClassHelper kh(array);
ASSERT_TRUE(array != NULL);
ASSERT_TRUE(array->GetClass() != NULL);
ASSERT_EQ(array->GetClass(), array->GetClass()->GetClass());
EXPECT_TRUE(array->GetClass()->GetSuperClass() != NULL);
ASSERT_STREQ(array_descriptor.c_str(), kh.GetDescriptor());
EXPECT_TRUE(array->GetSuperClass() != NULL);
EXPECT_EQ(class_linker_->FindSystemClass("Ljava/lang/Object;"), array->GetSuperClass());
EXPECT_TRUE(array->HasSuperClass());
ASSERT_TRUE(array->GetComponentType() != NULL);
kh.ChangeClass(array->GetComponentType());
ASSERT_TRUE(kh.GetDescriptor() != NULL);
EXPECT_EQ(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());
kh.ChangeClass(array);
EXPECT_EQ(2U, kh.NumDirectInterfaces());
EXPECT_TRUE(array->GetVTable() != NULL);
EXPECT_EQ(2, array->GetIfTableCount());
ObjectArray<InterfaceEntry>* iftable = array->GetIfTable();
ASSERT_TRUE(iftable != NULL);
kh.ChangeClass(kh.GetDirectInterface(0));
EXPECT_STREQ(kh.GetDescriptor(), "Ljava/lang/Cloneable;");
kh.ChangeClass(array);
kh.ChangeClass(kh.GetDirectInterface(1));
EXPECT_STREQ(kh.GetDescriptor(), "Ljava/io/Serializable;");
}
void AssertMethod(Method* method) SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
MethodHelper mh(method);
EXPECT_TRUE(method != NULL);
EXPECT_TRUE(method->GetClass() != NULL);
EXPECT_TRUE(mh.GetName() != NULL);
EXPECT_TRUE(mh.GetSignature() != NULL);
EXPECT_TRUE(method->GetDexCacheStrings() != NULL);
EXPECT_TRUE(method->GetDexCacheResolvedMethods() != NULL);
EXPECT_TRUE(method->GetDexCacheResolvedTypes() != NULL);
EXPECT_TRUE(method->GetDexCacheInitializedStaticStorage() != NULL);
EXPECT_EQ(method->GetDeclaringClass()->GetDexCache()->GetStrings(),
method->GetDexCacheStrings());
EXPECT_EQ(method->GetDeclaringClass()->GetDexCache()->GetResolvedMethods(),
method->GetDexCacheResolvedMethods());
EXPECT_EQ(method->GetDeclaringClass()->GetDexCache()->GetResolvedTypes(),
method->GetDexCacheResolvedTypes());
EXPECT_EQ(method->GetDeclaringClass()->GetDexCache()->GetInitializedStaticStorage(),
method->GetDexCacheInitializedStaticStorage());
}
void AssertField(Class* klass, Field* field)
SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
FieldHelper fh(field);
EXPECT_TRUE(field != NULL);
EXPECT_TRUE(field->GetClass() != NULL);
EXPECT_EQ(klass, field->GetDeclaringClass());
EXPECT_TRUE(fh.GetName() != NULL);
EXPECT_TRUE(fh.GetType() != NULL);
}
void AssertClass(const std::string& descriptor, Class* klass)
SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
ClassHelper kh(klass);
EXPECT_STREQ(descriptor.c_str(), kh.GetDescriptor());
if (descriptor == "Ljava/lang/Object;") {
EXPECT_FALSE(klass->HasSuperClass());
} else {
EXPECT_TRUE(klass->HasSuperClass());
EXPECT_TRUE(klass->GetSuperClass() != NULL);
}
EXPECT_TRUE(klass->GetClass() != NULL);
EXPECT_EQ(klass->GetClass(), klass->GetClass()->GetClass());
EXPECT_TRUE(klass->GetDexCache() != NULL);
EXPECT_TRUE(klass->IsLoaded());
EXPECT_TRUE(klass->IsResolved());
EXPECT_FALSE(klass->IsErroneous());
EXPECT_FALSE(klass->IsArrayClass());
EXPECT_TRUE(klass->GetComponentType() == NULL);
EXPECT_TRUE(klass->IsInSamePackage(klass));
EXPECT_TRUE(Class::IsInSamePackage(kh.GetDescriptor(), kh.GetDescriptor()));
if (klass->IsInterface()) {
EXPECT_TRUE(klass->IsAbstract());
if (klass->NumDirectMethods() == 1) {
MethodHelper mh(klass->GetDirectMethod(0));
EXPECT_TRUE(mh.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->GetVTable() == NULL);
for (int i = 0; i < klass->GetIfTableCount(); i++) {
const InterfaceEntry* interface_entry = klass->GetIfTable()->Get(i);
ASSERT_TRUE(interface_entry != NULL);
Class* interface = interface_entry->GetInterface();
ASSERT_TRUE(interface != NULL);
EXPECT_TRUE(interface_entry->GetInterface() != NULL);
if (klass->IsInterface()) {
EXPECT_EQ(0U, interface_entry->GetMethodArrayCount());
} else {
CHECK_EQ(interface->NumVirtualMethods(), interface_entry->GetMethodArrayCount());
EXPECT_EQ(interface->NumVirtualMethods(), interface_entry->GetMethodArrayCount());
}
}
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));
for (size_t i = 0; i < klass->NumDirectMethods(); i++) {
Method* method = klass->GetDirectMethod(i);
AssertMethod(method);
EXPECT_TRUE(method->IsDirect());
EXPECT_EQ(klass, method->GetDeclaringClass());
}
for (size_t i = 0; i < klass->NumVirtualMethods(); i++) {
Method* method = klass->GetVirtualMethod(i);
AssertMethod(method);
EXPECT_FALSE(method->IsDirect());
EXPECT_TRUE(method->GetDeclaringClass()->IsAssignableFrom(klass));
}
for (size_t i = 0; i < klass->NumInstanceFields(); i++) {
Field* field = klass->GetInstanceField(i);
AssertField(klass, field);
EXPECT_FALSE(field->IsStatic());
}
for (size_t i = 0; i < klass->NumStaticFields(); i++) {
Field* field = klass->GetStaticField(i);
AssertField(klass, field);
EXPECT_TRUE(field->IsStatic());
}
// Confirm that all instances fields are packed together at the start
EXPECT_GE(klass->NumInstanceFields(), klass->NumReferenceInstanceFields());
FieldHelper fh;
for (size_t i = 0; i < klass->NumReferenceInstanceFields(); i++) {
Field* field = klass->GetInstanceField(i);
fh.ChangeField(field);
ASSERT_TRUE(!fh.IsPrimitiveType());
Class* field_type = fh.GetType();
ASSERT_TRUE(field_type != NULL);
ASSERT_TRUE(!field_type->IsPrimitive());
}
for (size_t i = klass->NumReferenceInstanceFields(); i < klass->NumInstanceFields(); i++) {
Field* field = klass->GetInstanceField(i);
fh.ChangeField(field);
Class* field_type = fh.GetType();
ASSERT_TRUE(field_type != NULL);
if (!fh.IsPrimitiveType() || !field_type->IsPrimitive()) {
// While Reference.referent is not primitive, the ClassLinker
// treats it as such so that the garbage collector won't scan it.
EXPECT_EQ(PrettyField(field), "java.lang.Object java.lang.ref.Reference.referent");
}
}
size_t total_num_reference_instance_fields = 0;
Class* k = klass;
while (k != NULL) {
total_num_reference_instance_fields += k->NumReferenceInstanceFields();
k = k->GetSuperClass();
}
EXPECT_EQ(klass->GetReferenceInstanceOffsets() == 0,
total_num_reference_instance_fields == 0);
}
void AssertDexFileClass(ClassLoader* class_loader, const std::string& descriptor)
SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
ASSERT_TRUE(descriptor != NULL);
Class* klass = class_linker_->FindSystemClass(descriptor.c_str());
ASSERT_TRUE(klass != NULL);
EXPECT_STREQ(descriptor.c_str(), ClassHelper(klass).GetDescriptor());
EXPECT_EQ(class_loader, klass->GetClassLoader());
if (klass->IsPrimitive()) {
AssertPrimitiveClass(descriptor, klass);
} else if (klass->IsArrayClass()) {
AssertArrayClass(descriptor, klass);
} else {
AssertClass(descriptor, klass);
}
}
void AssertDexFile(const DexFile* dex, ClassLoader* class_loader)
SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
ASSERT_TRUE(dex != NULL);
// 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, NULL);
// Verify the dex cache has resolution methods in all resolved method slots
DexCache* dex_cache = class_linker_->FindDexCache(*dex);
ObjectArray<Method>* 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) != NULL);
}
}
static void TestRootVisitor(const Object* root, void*) {
EXPECT_TRUE(root != NULL);
}
};
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, const char* class_descriptor)
: is_static(is_static), class_descriptor(class_descriptor) {}
bool is_static;
std::string class_descriptor;
std::vector<CheckOffset> offsets;
bool Check() SHARED_LOCKS_REQUIRED(GlobalSynchronization::mutator_lock_) {
Class* klass = Runtime::Current()->GetClassLinker()->FindSystemClass(class_descriptor.c_str());
CHECK(klass != NULL) << class_descriptor;
bool error = false;
if (!klass->IsClassClass() && !is_static) {
size_t expected_size = is_static ? klass->GetClassSize(): klass->GetObjectSize();
if (sizeof(T) != expected_size) {
LG << "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) {
LG << "Field count mismatch:"
<< " class=" << class_descriptor
<< " Java=" << num_fields
<< " C++=" << offsets.size();
error = true;
}
FieldHelper fh;
for (size_t i = 0; i < offsets.size(); i++) {
Field* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i);
fh.ChangeField(field);
StringPiece field_name(fh.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];
Field* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i);
fh.ChangeField(field);
StringPiece field_name(fh.GetName());
if (field_name != offsets[i].java_name) {
LG << "JAVA FIELD ORDER MISMATCH NEXT LINE:";
}
LG << "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];
Field* 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];
Field* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i);
if (field->GetOffset().Uint32Value() != offset.cpp_offset) {
LG << "OFFSET MISMATCH NEXT LINE:";
}
LG << "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<Object> {
ObjectOffsets() : CheckOffsets<Object>(false, "Ljava/lang/Object;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Object, klass_), "shadow$_klass_"));
// alphabetical 32-bit
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Object, monitor_), "shadow$_monitor_"));
};
};
struct FieldOffsets : public CheckOffsets<Field> {
FieldOffsets() : CheckOffsets<Field>(false, "Ljava/lang/reflect/Field;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Field, declaring_class_), "declaringClass"));
// alphabetical 32-bit
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Field, access_flags_), "accessFlags"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Field, field_dex_idx_), "fieldDexIndex"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Field, offset_), "offset"));
};
};
struct MethodOffsets : public CheckOffsets<Method> {
MethodOffsets() : CheckOffsets<Method>(false, "Ljava/lang/reflect/Method;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, declaring_class_), "declaringClass"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, dex_cache_initialized_static_storage_), "dexCacheInitializedStaticStorage"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, dex_cache_resolved_methods_), "dexCacheResolvedMethods"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, dex_cache_resolved_types_), "dexCacheResolvedTypes"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, dex_cache_strings_), "dexCacheStrings"));
// alphabetical 32-bit
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, access_flags_), "accessFlags"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, code_), "code"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, code_item_offset_), "codeItemOffset"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, core_spill_mask_), "coreSpillMask"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, fp_spill_mask_), "fpSpillMask"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, frame_size_in_bytes_), "frameSizeInBytes"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, gc_map_), "gcMap"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, invoke_stub_), "invokeStub"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, mapping_table_), "mappingTable"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, method_dex_index_), "methodDexIndex"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, method_index_), "methodIndex"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, native_method_), "nativeMethod"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Method, vmap_table_), "vmapTable"));
};
};
struct ConstructorOffsets : public MethodOffsets {
ConstructorOffsets() : MethodOffsets() {
// We use Method* for both java.lang.reflect.Constructor and java.lang.reflect.Method.
class_descriptor = "Ljava/lang/reflect/Constructor;";
}
};
struct ClassOffsets : public CheckOffsets<Class> {
ClassOffsets() : CheckOffsets<Class>(false, "Ljava/lang/Class;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, class_loader_), "classLoader"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, component_type_), "componentType"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, dex_cache_), "dexCache"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, direct_methods_), "directMethods"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, ifields_), "iFields"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, iftable_), "ifTable"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, name_), "name"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, sfields_), "sFields"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, super_class_), "superClass"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, verify_error_class_), "verifyErrorClass"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, virtual_methods_), "virtualMethods"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, vtable_), "vtable"));
// alphabetical 32-bit
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, access_flags_), "accessFlags"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, class_size_), "classSize"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, clinit_thread_id_), "clinitThreadId"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, dex_type_idx_), "dexTypeIndex"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, num_reference_instance_fields_), "numReferenceInstanceFields"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, num_reference_static_fields_), "numReferenceStaticFields"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, object_size_), "objectSize"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, primitive_type_), "primitiveType"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, reference_instance_offsets_), "referenceInstanceOffsets"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, reference_static_offsets_), "referenceStaticOffsets"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Class, status_), "status"));
};
};
struct StringOffsets : public CheckOffsets<String> {
StringOffsets() : CheckOffsets<String>(false, "Ljava/lang/String;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(String, array_), "value"));
// alphabetical 32-bit
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(String, count_), "count"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(String, hash_code_), "hashCode"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(String, offset_), "offset"));
};
};
struct ThrowableOffsets : public CheckOffsets<Throwable> {
ThrowableOffsets() : CheckOffsets<Throwable>(false, "Ljava/lang/Throwable;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Throwable, cause_), "cause"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Throwable, detail_message_), "detailMessage"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Throwable, stack_state_), "stackState"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Throwable, stack_trace_), "stackTrace"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Throwable, suppressed_exceptions_), "suppressedExceptions"));
};
};
struct StackTraceElementOffsets : public CheckOffsets<StackTraceElement> {
StackTraceElementOffsets() : CheckOffsets<StackTraceElement>(false, "Ljava/lang/StackTraceElement;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(StackTraceElement, declaring_class_), "declaringClass"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(StackTraceElement, file_name_), "fileName"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(StackTraceElement, method_name_), "methodName"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(StackTraceElement, line_number_), "lineNumber"));
};
};
struct ClassLoaderOffsets : public CheckOffsets<ClassLoader> {
ClassLoaderOffsets() : CheckOffsets<ClassLoader>(false, "Ljava/lang/ClassLoader;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(ClassLoader, packages_), "packages"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(ClassLoader, parent_), "parent"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(ClassLoader, proxyCache_), "proxyCache"));
};
};
struct ProxyOffsets : public CheckOffsets<Proxy> {
ProxyOffsets() : CheckOffsets<Proxy>(false, "Ljava/lang/reflect/Proxy;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(Proxy, h_), "h"));
};
};
struct ClassClassOffsets : public CheckOffsets<ClassClass> {
ClassClassOffsets() : CheckOffsets<ClassClass>(true, "Ljava/lang/Class;") {
// padding 32-bit
CHECK_EQ(OFFSETOF_MEMBER(ClassClass, padding_) + 4,
OFFSETOF_MEMBER(ClassClass, serialVersionUID_));
// alphabetical 64-bit
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(ClassClass, serialVersionUID_), "serialVersionUID"));
};
};
struct StringClassOffsets : public CheckOffsets<StringClass> {
StringClassOffsets() : CheckOffsets<StringClass>(true, "Ljava/lang/String;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(StringClass, ASCII_), "ASCII"));
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(StringClass, CASE_INSENSITIVE_ORDER_), "CASE_INSENSITIVE_ORDER"));
// padding 32-bit
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(StringClass, REPLACEMENT_CHAR_), "REPLACEMENT_CHAR"));
// alphabetical 64-bit
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(StringClass, serialVersionUID_), "serialVersionUID"));
};
};
struct FieldClassOffsets : public CheckOffsets<FieldClass> {
FieldClassOffsets() : CheckOffsets<FieldClass>(true, "Ljava/lang/reflect/Field;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(FieldClass, ORDER_BY_NAME_AND_DECLARING_CLASS_), "ORDER_BY_NAME_AND_DECLARING_CLASS"));
};
};
struct MethodClassOffsets : public CheckOffsets<MethodClass> {
MethodClassOffsets() : CheckOffsets<MethodClass>(true, "Ljava/lang/reflect/Method;") {
// alphabetical references
offsets.push_back(CheckOffset(OFFSETOF_MEMBER(MethodClass, ORDER_BY_SIGNATURE_), "ORDER_BY_SIGNATURE"));
};
};
// 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(ConstructorOffsets().Check());
EXPECT_TRUE(FieldOffsets().Check());
EXPECT_TRUE(MethodOffsets().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(ClassClassOffsets().Check());
EXPECT_TRUE(StringClassOffsets().Check());
EXPECT_TRUE(FieldClassOffsets().Check());
EXPECT_TRUE(MethodClassOffsets().Check());
}
TEST_F(ClassLinkerTest, FindClassNonexistent) {
ScopedObjectAccess soa(Thread::Current());
AssertNonExistentClass("NoSuchClass;");
AssertNonExistentClass("LNoSuchClass;");
}
TEST_F(ClassLinkerTest, FindClassNested) {
ScopedObjectAccess soa(Thread::Current());
SirtRef<ClassLoader> class_loader(soa.Decode<ClassLoader*>(LoadDex("Nested")));
Class* outer = class_linker_->FindClass("LNested;", class_loader.get());
ASSERT_TRUE(outer != NULL);
EXPECT_EQ(0U, outer->NumVirtualMethods());
EXPECT_EQ(1U, outer->NumDirectMethods());
Class* inner = class_linker_->FindClass("LNested$Inner;", class_loader.get());
ASSERT_TRUE(inner != NULL);
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());
Class* JavaLangObject = class_linker_->FindSystemClass("Ljava/lang/Object;");
ClassHelper kh(JavaLangObject);
ASSERT_TRUE(JavaLangObject != NULL);
ASSERT_TRUE(JavaLangObject->GetClass() != NULL);
ASSERT_EQ(JavaLangObject->GetClass(), JavaLangObject->GetClass()->GetClass());
EXPECT_EQ(JavaLangObject, JavaLangObject->GetClass()->GetSuperClass());
ASSERT_STREQ(kh.GetDescriptor(), "Ljava/lang/Object;");
EXPECT_TRUE(JavaLangObject->GetSuperClass() == NULL);
EXPECT_FALSE(JavaLangObject->HasSuperClass());
EXPECT_TRUE(JavaLangObject->GetClassLoader() == NULL);
EXPECT_EQ(Class::kStatusResolved, JavaLangObject->GetStatus());
EXPECT_FALSE(JavaLangObject->IsErroneous());
EXPECT_TRUE(JavaLangObject->IsLoaded());
EXPECT_TRUE(JavaLangObject->IsResolved());
EXPECT_FALSE(JavaLangObject->IsVerified());
EXPECT_FALSE(JavaLangObject->IsInitialized());
EXPECT_FALSE(JavaLangObject->IsArrayInstance());
EXPECT_FALSE(JavaLangObject->IsArrayClass());
EXPECT_TRUE(JavaLangObject->GetComponentType() == NULL);
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());
EXPECT_EQ(2U, JavaLangObject->NumInstanceFields());
FieldHelper fh(JavaLangObject->GetInstanceField(0));
EXPECT_STREQ(fh.GetName(), "shadow$_klass_");
fh.ChangeField(JavaLangObject->GetInstanceField(1));
EXPECT_STREQ(fh.GetName(), "shadow$_monitor_");
EXPECT_EQ(0U, JavaLangObject->NumStaticFields());
EXPECT_EQ(0U, kh.NumDirectInterfaces());
SirtRef<ClassLoader> class_loader(soa.Decode<ClassLoader*>(LoadDex("MyClass")));
AssertNonExistentClass("LMyClass;");
Class* MyClass = class_linker_->FindClass("LMyClass;", class_loader.get());
kh.ChangeClass(MyClass);
ASSERT_TRUE(MyClass != NULL);
ASSERT_TRUE(MyClass->GetClass() != NULL);
ASSERT_EQ(MyClass->GetClass(), MyClass->GetClass()->GetClass());
EXPECT_EQ(JavaLangObject, MyClass->GetClass()->GetSuperClass());
ASSERT_STREQ(kh.GetDescriptor(), "LMyClass;");
EXPECT_TRUE(MyClass->GetSuperClass() == JavaLangObject);
EXPECT_TRUE(MyClass->HasSuperClass());
EXPECT_EQ(class_loader.get(), MyClass->GetClassLoader());
EXPECT_EQ(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() == NULL);
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, kh.NumDirectInterfaces());
EXPECT_EQ(JavaLangObject->GetClass()->GetClass(), MyClass->GetClass()->GetClass());
// created by class_linker
AssertArrayClass("[C", "C", NULL);
AssertArrayClass("[Ljava/lang/Object;", "Ljava/lang/Object;", NULL);
// synthesized on the fly
AssertArrayClass("[[C", "[C", NULL);
AssertArrayClass("[[[LMyClass;", "[[LMyClass;", class_loader.get());
// or not available at all
AssertNonExistentClass("[[[[LNonExistentClass;");
}
TEST_F(ClassLinkerTest, LibCore) {
ScopedObjectAccess soa(Thread::Current());
AssertDexFile(java_lang_dex_file_, NULL);
}
// 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());
Class* array_class = class_linker_->FindSystemClass("[Ljava/lang/String;");
ObjectArray<String>* array = ObjectArray<String>::Alloc(array_class, 0);
uint32_t array_offset = reinterpret_cast<uint32_t>(array);
uint32_t data_offset =
array_offset + ObjectArray<String>::DataOffset(sizeof(String*)).Uint32Value();
if (sizeof(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());
SirtRef<LongArray> long_array(LongArray::Alloc(0));
EXPECT_EQ(class_linker_->FindSystemClass("[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
SirtRef<DoubleArray> double_array(DoubleArray::Alloc(0));
EXPECT_EQ(class_linker_->FindSystemClass("[D"), double_array->GetClass());
data_offset = reinterpret_cast<uintptr_t>(double_array->GetData());
EXPECT_TRUE(IsAligned<8>(data_offset)); // Doubles require 8 byte alignment
SirtRef<IntArray> int_array(IntArray::Alloc(0));
EXPECT_EQ(class_linker_->FindSystemClass("[I"), int_array->GetClass());
data_offset = reinterpret_cast<uintptr_t>(int_array->GetData());
EXPECT_TRUE(IsAligned<4>(data_offset)); // Ints require 4 byte alignment
SirtRef<CharArray> char_array(CharArray::Alloc(0));
EXPECT_EQ(class_linker_->FindSystemClass("[C"), char_array->GetClass());
data_offset = reinterpret_cast<uintptr_t>(char_array->GetData());
EXPECT_TRUE(IsAligned<2>(data_offset)); // Chars require 2 byte alignment
SirtRef<ShortArray> short_array(ShortArray::Alloc(0));
EXPECT_EQ(class_linker_->FindSystemClass("[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());
Class* c;
c = class_linker_->FindClass("Ljava/lang/Boolean;", NULL);
FieldHelper fh(c->GetIFields()->Get(0));
EXPECT_STREQ("value", fh.GetName());
c = class_linker_->FindClass("Ljava/lang/Byte;", NULL);
fh.ChangeField(c->GetIFields()->Get(0));
EXPECT_STREQ("value", fh.GetName());
c = class_linker_->FindClass("Ljava/lang/Character;", NULL);
fh.ChangeField(c->GetIFields()->Get(0));
EXPECT_STREQ("value", fh.GetName());
c = class_linker_->FindClass("Ljava/lang/Double;", NULL);
fh.ChangeField(c->GetIFields()->Get(0));
EXPECT_STREQ("value", fh.GetName());
c = class_linker_->FindClass("Ljava/lang/Float;", NULL);
fh.ChangeField(c->GetIFields()->Get(0));
EXPECT_STREQ("value", fh.GetName());
c = class_linker_->FindClass("Ljava/lang/Integer;", NULL);
fh.ChangeField(c->GetIFields()->Get(0));
EXPECT_STREQ("value", fh.GetName());
c = class_linker_->FindClass("Ljava/lang/Long;", NULL);
fh.ChangeField(c->GetIFields()->Get(0));
EXPECT_STREQ("value", fh.GetName());
c = class_linker_->FindClass("Ljava/lang/Short;", NULL);
fh.ChangeField(c->GetIFields()->Get(0));
EXPECT_STREQ("value", fh.GetName());
}
TEST_F(ClassLinkerTest, TwoClassLoadersOneClass) {
ScopedObjectAccess soa(Thread::Current());
SirtRef<ClassLoader> class_loader_1(soa.Decode<ClassLoader*>(LoadDex("MyClass")));
SirtRef<ClassLoader> class_loader_2(soa.Decode<ClassLoader*>(LoadDex("MyClass")));
Class* MyClass_1 = class_linker_->FindClass("LMyClass;", class_loader_1.get());
Class* MyClass_2 = class_linker_->FindClass("LMyClass;", class_loader_2.get());
EXPECT_TRUE(MyClass_1 != NULL);
EXPECT_TRUE(MyClass_2 != NULL);
EXPECT_NE(MyClass_1, MyClass_2);
}
TEST_F(ClassLinkerTest, StaticFields) {
ScopedObjectAccess soa(Thread::Current());
SirtRef<ClassLoader> class_loader(soa.Decode<ClassLoader*>(LoadDex("Statics")));
Class* statics = class_linker_->FindClass("LStatics;", class_loader.get());
class_linker_->EnsureInitialized(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.
Method* clinit = statics->FindDirectMethod("<clinit>", "()V");
EXPECT_TRUE(clinit == NULL);
EXPECT_EQ(9U, statics->NumStaticFields());
Field* s0 = statics->FindStaticField("s0", "Z");
FieldHelper fh(s0);
EXPECT_STREQ(ClassHelper(s0->GetClass()).GetDescriptor(), "Ljava/lang/reflect/Field;");
EXPECT_TRUE(fh.GetTypeAsPrimitiveType() == Primitive::kPrimBoolean);
EXPECT_EQ(true, s0->GetBoolean(NULL));
s0->SetBoolean(NULL, false);
Field* s1 = statics->FindStaticField("s1", "B");
fh.ChangeField(s1);
EXPECT_TRUE(fh.GetTypeAsPrimitiveType() == Primitive::kPrimByte);
EXPECT_EQ(5, s1->GetByte(NULL));
s1->SetByte(NULL, 6);
Field* s2 = statics->FindStaticField("s2", "C");
fh.ChangeField(s2);
EXPECT_TRUE(fh.GetTypeAsPrimitiveType() == Primitive::kPrimChar);
EXPECT_EQ('a', s2->GetChar(NULL));
s2->SetChar(NULL, 'b');
Field* s3 = statics->FindStaticField("s3", "S");
fh.ChangeField(s3);
EXPECT_TRUE(fh.GetTypeAsPrimitiveType() == Primitive::kPrimShort);
EXPECT_EQ(-536, s3->GetShort(NULL));
s3->SetShort(NULL, -535);
Field* s4 = statics->FindStaticField("s4", "I");
fh.ChangeField(s4);
EXPECT_TRUE(fh.GetTypeAsPrimitiveType() == Primitive::kPrimInt);
EXPECT_EQ(2000000000, s4->GetInt(NULL));
s4->SetInt(NULL, 2000000001);
Field* s5 = statics->FindStaticField("s5", "J");
fh.ChangeField(s5);
EXPECT_TRUE(fh.GetTypeAsPrimitiveType() == Primitive::kPrimLong);
EXPECT_EQ(0x1234567890abcdefLL, s5->GetLong(NULL));
s5->SetLong(NULL, 0x34567890abcdef12LL);
Field* s6 = statics->FindStaticField("s6", "F");
fh.ChangeField(s6);
EXPECT_TRUE(fh.GetTypeAsPrimitiveType() == Primitive::kPrimFloat);
EXPECT_EQ(0.5, s6->GetFloat(NULL));
s6->SetFloat(NULL, 0.75);
Field* s7 = statics->FindStaticField("s7", "D");
fh.ChangeField(s7);
EXPECT_TRUE(fh.GetTypeAsPrimitiveType() == Primitive::kPrimDouble);
EXPECT_EQ(16777217, s7->GetDouble(NULL));
s7->SetDouble(NULL, 16777219);
Field* s8 = statics->FindStaticField("s8", "Ljava/lang/String;");
fh.ChangeField(s8);
EXPECT_TRUE(fh.GetTypeAsPrimitiveType() == Primitive::kPrimNot);
EXPECT_TRUE(s8->GetObject(NULL)->AsString()->Equals("android"));
s8->SetObject(NULL, String::AllocFromModifiedUtf8("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(NULL));
EXPECT_EQ(6, s1->GetByte(NULL));
EXPECT_EQ('b', s2->GetChar(NULL));
EXPECT_EQ(-535, s3->GetShort(NULL));
EXPECT_EQ(2000000001, s4->GetInt(NULL));
EXPECT_EQ(0x34567890abcdef12LL, s5->GetLong(NULL));
EXPECT_EQ(0.75, s6->GetFloat(NULL));
EXPECT_EQ(16777219, s7->GetDouble(NULL));
EXPECT_TRUE(s8->GetObject(NULL)->AsString()->Equals("robot"));
}
TEST_F(ClassLinkerTest, Interfaces) {
ScopedObjectAccess soa(Thread::Current());
SirtRef<ClassLoader> class_loader(soa.Decode<ClassLoader*>(LoadDex("Interfaces")));
Class* I = class_linker_->FindClass("LInterfaces$I;", class_loader.get());
Class* J = class_linker_->FindClass("LInterfaces$J;", class_loader.get());
Class* K = class_linker_->FindClass("LInterfaces$K;", class_loader.get());
Class* A = class_linker_->FindClass("LInterfaces$A;", class_loader.get());
Class* B = class_linker_->FindClass("LInterfaces$B;", class_loader.get());
EXPECT_TRUE(I->IsAssignableFrom(A));
EXPECT_TRUE(J->IsAssignableFrom(A));
EXPECT_TRUE(J->IsAssignableFrom(K));
EXPECT_TRUE(K->IsAssignableFrom(B));
EXPECT_TRUE(J->IsAssignableFrom(B));
Method* Ii = I->FindVirtualMethod("i", "()V");
Method* Jj1 = J->FindVirtualMethod("j1", "()V");
Method* Jj2 = J->FindVirtualMethod("j2", "()V");
Method* Kj1 = K->FindInterfaceMethod("j1", "()V");
Method* Kj2 = K->FindInterfaceMethod("j2", "()V");
Method* Kk = K->FindInterfaceMethod("k", "()V");
Method* Ai = A->FindVirtualMethod("i", "()V");
Method* Aj1 = A->FindVirtualMethod("j1", "()V");
Method* Aj2 = A->FindVirtualMethod("j2", "()V");
ASSERT_TRUE(Ii != NULL);
ASSERT_TRUE(Jj1 != NULL);
ASSERT_TRUE(Jj2 != NULL);
ASSERT_TRUE(Kj1 != NULL);
ASSERT_TRUE(Kj2 != NULL);
ASSERT_TRUE(Kk != NULL);
ASSERT_TRUE(Ai != NULL);
ASSERT_TRUE(Aj1 != NULL);
ASSERT_TRUE(Aj2 != NULL);
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));
Field* Afoo = A->FindStaticField("foo", "Ljava/lang/String;");
Field* Bfoo = B->FindStaticField("foo", "Ljava/lang/String;");
Field* Jfoo = J->FindStaticField("foo", "Ljava/lang/String;");
Field* Kfoo = K->FindStaticField("foo", "Ljava/lang/String;");
ASSERT_TRUE(Afoo != NULL);
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");
SirtRef<ClassLoader> class_loader(soa.Decode<ClassLoader*>(jclass_loader));
const DexFile* dex_file = Runtime::Current()->GetCompileTimeClassPath(jclass_loader)[0];
CHECK(dex_file != NULL);
Class* klass = class_linker_->FindClass("LStaticsFromCode;", class_loader.get());
Method* clinit = klass->FindDirectMethod("<clinit>", "()V");
Method* getS0 = klass->FindDirectMethod("getS0", "()Ljava/lang/Object;");
const DexFile::StringId* string_id = dex_file->FindStringId("LStaticsFromCode;");
ASSERT_TRUE(string_id != NULL);
const DexFile::TypeId* type_id = dex_file->FindTypeId(dex_file->GetIndexForStringId(*string_id));
ASSERT_TRUE(type_id != NULL);
uint32_t type_idx = dex_file->GetIndexForTypeId(*type_id);
EXPECT_TRUE(clinit->GetDexCacheInitializedStaticStorage()->Get(type_idx) == NULL);
StaticStorageBase* uninit = ResolveVerifyAndClinit(type_idx, clinit, Thread::Current(), true, false);
EXPECT_TRUE(uninit != NULL);
EXPECT_TRUE(clinit->GetDexCacheInitializedStaticStorage()->Get(type_idx) == NULL);
StaticStorageBase* init = ResolveVerifyAndClinit(type_idx, getS0, Thread::Current(), true, false);
EXPECT_TRUE(init != NULL);
EXPECT_EQ(init, clinit->GetDexCacheInitializedStaticStorage()->Get(type_idx));
}
TEST_F(ClassLinkerTest, FinalizableBit) {
ScopedObjectAccess soa(Thread::Current());
Class* c;
// Object has a finalize method, but we know it's empty.
c = class_linker_->FindSystemClass("Ljava/lang/Object;");
EXPECT_FALSE(c->IsFinalizable());
// Enum has a finalize method to prevent its subclasses from implementing one.
c = class_linker_->FindSystemClass("Ljava/lang/Enum;");
EXPECT_FALSE(c->IsFinalizable());
// RoundingMode is an enum.
c = class_linker_->FindSystemClass("Ljava/math/RoundingMode;");
EXPECT_FALSE(c->IsFinalizable());
// RandomAccessFile extends Object and overrides finalize.
c = class_linker_->FindSystemClass("Ljava/io/RandomAccessFile;");
EXPECT_TRUE(c->IsFinalizable());
// FileInputStream is finalizable and extends InputStream which isn't.
c = class_linker_->FindSystemClass("Ljava/io/InputStream;");
EXPECT_FALSE(c->IsFinalizable());
c = class_linker_->FindSystemClass("Ljava/io/FileInputStream;");
EXPECT_TRUE(c->IsFinalizable());
// ScheduledThreadPoolExecutor doesn't have a finalize method but
// extends ThreadPoolExecutor which does.
c = class_linker_->FindSystemClass("Ljava/util/concurrent/ThreadPoolExecutor;");
EXPECT_TRUE(c->IsFinalizable());
c = class_linker_->FindSystemClass("Ljava/util/concurrent/ScheduledThreadPoolExecutor;");
EXPECT_TRUE(c->IsFinalizable());
}
TEST_F(ClassLinkerTest, ClassRootDescriptors) {
ScopedObjectAccess soa(Thread::Current());
ClassHelper kh;
for (int i = 0; i < ClassLinker::kClassRootsMax; i++) {
Class* klass = class_linker_->GetClassRoot(ClassLinker::ClassRoot(i));
kh.ChangeClass(klass);
EXPECT_TRUE(kh.GetDescriptor() != NULL);
EXPECT_STREQ(kh.GetDescriptor(),
class_linker_->GetClassRootDescriptor(ClassLinker::ClassRoot(i))) << " i = " << i;
}
}
} // namespace art