1 /*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "class_linker.h"
18
19 #include <memory>
20 #include <string>
21
22 #include "class_linker-inl.h"
23 #include "common_runtime_test.h"
24 #include "dex_file.h"
25 #include "entrypoints/entrypoint_utils-inl.h"
26 #include "field_helper.h"
27 #include "gc/heap.h"
28 #include "mirror/art_field-inl.h"
29 #include "mirror/art_method.h"
30 #include "mirror/art_method-inl.h"
31 #include "mirror/class-inl.h"
32 #include "mirror/dex_cache.h"
33 #include "mirror/object-inl.h"
34 #include "mirror/object_array-inl.h"
35 #include "mirror/proxy.h"
36 #include "mirror/reference.h"
37 #include "mirror/stack_trace_element.h"
38 #include "mirror/string-inl.h"
39 #include "handle_scope-inl.h"
40 #include "scoped_thread_state_change.h"
41 #include "thread-inl.h"
42
43 namespace art {
44
45 class ClassLinkerTest : public CommonRuntimeTest {
46 protected:
AssertNonExistentClass(const std::string & descriptor)47 void AssertNonExistentClass(const std::string& descriptor)
48 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
49 Thread* self = Thread::Current();
50 EXPECT_TRUE(class_linker_->FindSystemClass(self, descriptor.c_str()) == NULL);
51 EXPECT_TRUE(self->IsExceptionPending());
52 mirror::Object* exception = self->GetException(NULL);
53 self->ClearException();
54 mirror::Class* exception_class =
55 class_linker_->FindSystemClass(self, "Ljava/lang/NoClassDefFoundError;");
56 EXPECT_TRUE(exception->InstanceOf(exception_class));
57 }
58
AssertPrimitiveClass(const std::string & descriptor)59 void AssertPrimitiveClass(const std::string& descriptor)
60 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
61 Thread* self = Thread::Current();
62 AssertPrimitiveClass(descriptor, class_linker_->FindSystemClass(self, descriptor.c_str()));
63 }
64
AssertPrimitiveClass(const std::string & descriptor,mirror::Class * primitive)65 void AssertPrimitiveClass(const std::string& descriptor, mirror::Class* primitive)
66 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
67 ASSERT_TRUE(primitive != NULL);
68 ASSERT_TRUE(primitive->GetClass() != NULL);
69 ASSERT_EQ(primitive->GetClass(), primitive->GetClass()->GetClass());
70 EXPECT_TRUE(primitive->GetClass()->GetSuperClass() != NULL);
71 std::string temp;
72 ASSERT_STREQ(descriptor.c_str(), primitive->GetDescriptor(&temp));
73 EXPECT_TRUE(primitive->GetSuperClass() == NULL);
74 EXPECT_FALSE(primitive->HasSuperClass());
75 EXPECT_TRUE(primitive->GetClassLoader() == NULL);
76 EXPECT_EQ(mirror::Class::kStatusInitialized, primitive->GetStatus());
77 EXPECT_FALSE(primitive->IsErroneous());
78 EXPECT_TRUE(primitive->IsLoaded());
79 EXPECT_TRUE(primitive->IsResolved());
80 EXPECT_TRUE(primitive->IsVerified());
81 EXPECT_TRUE(primitive->IsInitialized());
82 EXPECT_FALSE(primitive->IsArrayInstance());
83 EXPECT_FALSE(primitive->IsArrayClass());
84 EXPECT_TRUE(primitive->GetComponentType() == NULL);
85 EXPECT_FALSE(primitive->IsInterface());
86 EXPECT_TRUE(primitive->IsPublic());
87 EXPECT_TRUE(primitive->IsFinal());
88 EXPECT_TRUE(primitive->IsPrimitive());
89 EXPECT_FALSE(primitive->IsSynthetic());
90 EXPECT_EQ(0U, primitive->NumDirectMethods());
91 EXPECT_EQ(0U, primitive->NumVirtualMethods());
92 EXPECT_EQ(0U, primitive->NumInstanceFields());
93 EXPECT_EQ(0U, primitive->NumStaticFields());
94 EXPECT_EQ(0U, primitive->NumDirectInterfaces());
95 EXPECT_FALSE(primitive->HasVTable());
96 EXPECT_EQ(0, primitive->GetIfTableCount());
97 EXPECT_TRUE(primitive->GetIfTable() == NULL);
98 EXPECT_EQ(kAccPublic | kAccFinal | kAccAbstract, primitive->GetAccessFlags());
99 }
100
AssertArrayClass(const std::string & array_descriptor,const std::string & component_type,mirror::ClassLoader * class_loader)101 void AssertArrayClass(const std::string& array_descriptor,
102 const std::string& component_type,
103 mirror::ClassLoader* class_loader)
104 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
105 Thread* self = Thread::Current();
106 StackHandleScope<2> hs(self);
107 Handle<mirror::ClassLoader> loader(hs.NewHandle(class_loader));
108 Handle<mirror::Class> array(
109 hs.NewHandle(class_linker_->FindClass(self, array_descriptor.c_str(), loader)));
110 std::string temp;
111 EXPECT_STREQ(component_type.c_str(), array->GetComponentType()->GetDescriptor(&temp));
112 EXPECT_EQ(class_loader, array->GetClassLoader());
113 EXPECT_EQ(kAccFinal | kAccAbstract, (array->GetAccessFlags() & (kAccFinal | kAccAbstract)));
114 AssertArrayClass(array_descriptor, array);
115 }
116
AssertArrayClass(const std::string & array_descriptor,Handle<mirror::Class> array)117 void AssertArrayClass(const std::string& array_descriptor, Handle<mirror::Class> array)
118 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
119 ASSERT_TRUE(array.Get() != NULL);
120 ASSERT_TRUE(array->GetClass() != NULL);
121 ASSERT_EQ(array->GetClass(), array->GetClass()->GetClass());
122 EXPECT_TRUE(array->GetClass()->GetSuperClass() != NULL);
123 std::string temp;
124 ASSERT_STREQ(array_descriptor.c_str(), array->GetDescriptor(&temp));
125 EXPECT_TRUE(array->GetSuperClass() != NULL);
126 Thread* self = Thread::Current();
127 EXPECT_EQ(class_linker_->FindSystemClass(self, "Ljava/lang/Object;"), array->GetSuperClass());
128 EXPECT_TRUE(array->HasSuperClass());
129 ASSERT_TRUE(array->GetComponentType() != NULL);
130 ASSERT_GT(strlen(array->GetComponentType()->GetDescriptor(&temp)), 0U);
131 EXPECT_EQ(mirror::Class::kStatusInitialized, array->GetStatus());
132 EXPECT_FALSE(array->IsErroneous());
133 EXPECT_TRUE(array->IsLoaded());
134 EXPECT_TRUE(array->IsResolved());
135 EXPECT_TRUE(array->IsVerified());
136 EXPECT_TRUE(array->IsInitialized());
137 EXPECT_FALSE(array->IsArrayInstance());
138 EXPECT_TRUE(array->IsArrayClass());
139 EXPECT_FALSE(array->IsInterface());
140 EXPECT_EQ(array->GetComponentType()->IsPublic(), array->IsPublic());
141 EXPECT_TRUE(array->IsFinal());
142 EXPECT_FALSE(array->IsPrimitive());
143 EXPECT_FALSE(array->IsSynthetic());
144 EXPECT_EQ(0U, array->NumDirectMethods());
145 EXPECT_EQ(0U, array->NumVirtualMethods());
146 EXPECT_EQ(0U, array->NumInstanceFields());
147 EXPECT_EQ(0U, array->NumStaticFields());
148 EXPECT_EQ(2U, array->NumDirectInterfaces());
149 EXPECT_TRUE(array->ShouldHaveEmbeddedImtAndVTable());
150 EXPECT_EQ(2, array->GetIfTableCount());
151 ASSERT_TRUE(array->GetIfTable() != NULL);
152 mirror::Class* direct_interface0 = mirror::Class::GetDirectInterface(self, array, 0);
153 EXPECT_TRUE(direct_interface0 != nullptr);
154 EXPECT_STREQ(direct_interface0->GetDescriptor(&temp), "Ljava/lang/Cloneable;");
155 mirror::Class* direct_interface1 = mirror::Class::GetDirectInterface(self, array, 1);
156 EXPECT_STREQ(direct_interface1->GetDescriptor(&temp), "Ljava/io/Serializable;");
157 mirror::Class* array_ptr = array->GetComponentType();
158 EXPECT_EQ(class_linker_->FindArrayClass(self, &array_ptr), array.Get());
159 }
160
AssertMethod(mirror::ArtMethod * method)161 void AssertMethod(mirror::ArtMethod* method) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
162 EXPECT_TRUE(method != nullptr);
163 EXPECT_TRUE(method->GetClass() != nullptr);
164 EXPECT_TRUE(method->GetName() != nullptr);
165 EXPECT_TRUE(method->GetSignature() != Signature::NoSignature());
166
167 EXPECT_TRUE(method->GetDexCacheStrings() != nullptr);
168 EXPECT_TRUE(method->HasDexCacheResolvedMethods());
169 EXPECT_TRUE(method->HasDexCacheResolvedTypes());
170 EXPECT_EQ(method->GetDeclaringClass()->GetDexCache()->GetStrings(),
171 method->GetDexCacheStrings());
172 EXPECT_TRUE(method->HasSameDexCacheResolvedMethods(
173 method->GetDeclaringClass()->GetDexCache()->GetResolvedMethods()));
174 EXPECT_TRUE(method->HasSameDexCacheResolvedTypes(
175 method->GetDeclaringClass()->GetDexCache()->GetResolvedTypes()));
176 }
177
AssertField(mirror::Class * klass,mirror::ArtField * field)178 void AssertField(mirror::Class* klass, mirror::ArtField* field)
179 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
180 EXPECT_TRUE(field != NULL);
181 EXPECT_TRUE(field->GetClass() != NULL);
182 EXPECT_EQ(klass, field->GetDeclaringClass());
183 EXPECT_TRUE(field->GetName() != NULL);
184 StackHandleScope<1> hs(Thread::Current());
185 FieldHelper fh(hs.NewHandle(field));
186 EXPECT_TRUE(fh.GetType() != NULL);
187 }
188
AssertClass(const std::string & descriptor,Handle<mirror::Class> klass)189 void AssertClass(const std::string& descriptor, Handle<mirror::Class> klass)
190 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
191 std::string temp;
192 EXPECT_STREQ(descriptor.c_str(), klass->GetDescriptor(&temp));
193 if (descriptor == "Ljava/lang/Object;") {
194 EXPECT_FALSE(klass->HasSuperClass());
195 } else {
196 EXPECT_TRUE(klass->HasSuperClass());
197 EXPECT_TRUE(klass->GetSuperClass() != NULL);
198 }
199 EXPECT_TRUE(klass->GetClass() != NULL);
200 EXPECT_EQ(klass->GetClass(), klass->GetClass()->GetClass());
201 EXPECT_TRUE(klass->GetDexCache() != NULL);
202 EXPECT_TRUE(klass->IsLoaded());
203 EXPECT_TRUE(klass->IsResolved());
204 EXPECT_FALSE(klass->IsErroneous());
205 EXPECT_FALSE(klass->IsArrayClass());
206 EXPECT_TRUE(klass->GetComponentType() == NULL);
207 EXPECT_TRUE(klass->IsInSamePackage(klass.Get()));
208 std::string temp2;
209 EXPECT_TRUE(mirror::Class::IsInSamePackage(klass->GetDescriptor(&temp),
210 klass->GetDescriptor(&temp2)));
211 if (klass->IsInterface()) {
212 EXPECT_TRUE(klass->IsAbstract());
213 if (klass->NumDirectMethods() == 1) {
214 EXPECT_TRUE(klass->GetDirectMethod(0)->IsClassInitializer());
215 EXPECT_TRUE(klass->GetDirectMethod(0)->IsDirect());
216 } else {
217 EXPECT_EQ(0U, klass->NumDirectMethods());
218 }
219 } else {
220 if (!klass->IsSynthetic()) {
221 EXPECT_NE(0U, klass->NumDirectMethods());
222 }
223 }
224 EXPECT_EQ(klass->IsInterface(), !klass->HasVTable());
225 mirror::IfTable* iftable = klass->GetIfTable();
226 for (int i = 0; i < klass->GetIfTableCount(); i++) {
227 mirror::Class* interface = iftable->GetInterface(i);
228 ASSERT_TRUE(interface != NULL);
229 if (klass->IsInterface()) {
230 EXPECT_EQ(0U, iftable->GetMethodArrayCount(i));
231 } else {
232 EXPECT_EQ(interface->NumVirtualMethods(), iftable->GetMethodArrayCount(i));
233 }
234 }
235 if (klass->IsAbstract()) {
236 EXPECT_FALSE(klass->IsFinal());
237 } else {
238 EXPECT_FALSE(klass->IsAnnotation());
239 }
240 if (klass->IsFinal()) {
241 EXPECT_FALSE(klass->IsAbstract());
242 EXPECT_FALSE(klass->IsAnnotation());
243 }
244 if (klass->IsAnnotation()) {
245 EXPECT_FALSE(klass->IsFinal());
246 EXPECT_TRUE(klass->IsAbstract());
247 }
248
249 EXPECT_FALSE(klass->IsPrimitive());
250 EXPECT_TRUE(klass->CanAccess(klass.Get()));
251
252 for (size_t i = 0; i < klass->NumDirectMethods(); i++) {
253 mirror::ArtMethod* method = klass->GetDirectMethod(i);
254 AssertMethod(method);
255 EXPECT_TRUE(method->IsDirect());
256 EXPECT_EQ(klass.Get(), method->GetDeclaringClass());
257 }
258
259 for (size_t i = 0; i < klass->NumVirtualMethods(); i++) {
260 mirror::ArtMethod* method = klass->GetVirtualMethod(i);
261 AssertMethod(method);
262 EXPECT_FALSE(method->IsDirect());
263 EXPECT_TRUE(method->GetDeclaringClass()->IsAssignableFrom(klass.Get()));
264 }
265
266 for (size_t i = 0; i < klass->NumInstanceFields(); i++) {
267 mirror::ArtField* field = klass->GetInstanceField(i);
268 AssertField(klass.Get(), field);
269 EXPECT_FALSE(field->IsStatic());
270 }
271
272 for (size_t i = 0; i < klass->NumStaticFields(); i++) {
273 mirror::ArtField* field = klass->GetStaticField(i);
274 AssertField(klass.Get(), field);
275 EXPECT_TRUE(field->IsStatic());
276 }
277
278 // Confirm that all instances fields are packed together at the start
279 EXPECT_GE(klass->NumInstanceFields(), klass->NumReferenceInstanceFields());
280 StackHandleScope<1> hs(Thread::Current());
281 FieldHelper fh(hs.NewHandle<mirror::ArtField>(nullptr));
282 for (size_t i = 0; i < klass->NumReferenceInstanceFields(); i++) {
283 mirror::ArtField* field = klass->GetInstanceField(i);
284 fh.ChangeField(field);
285 ASSERT_TRUE(!field->IsPrimitiveType());
286 mirror::Class* field_type = fh.GetType();
287 ASSERT_TRUE(field_type != NULL);
288 ASSERT_TRUE(!field_type->IsPrimitive());
289 }
290 for (size_t i = klass->NumReferenceInstanceFields(); i < klass->NumInstanceFields(); i++) {
291 mirror::ArtField* field = klass->GetInstanceField(i);
292 fh.ChangeField(field);
293 mirror::Class* field_type = fh.GetType();
294 ASSERT_TRUE(field_type != NULL);
295 if (!fh.GetField()->IsPrimitiveType() || !field_type->IsPrimitive()) {
296 // While Reference.referent is not primitive, the ClassLinker
297 // treats it as such so that the garbage collector won't scan it.
298 EXPECT_EQ(PrettyField(fh.GetField()), "java.lang.Object java.lang.ref.Reference.referent");
299 }
300 }
301
302 size_t total_num_reference_instance_fields = 0;
303 mirror::Class* k = klass.Get();
304 while (k != NULL) {
305 total_num_reference_instance_fields += k->NumReferenceInstanceFields();
306 k = k->GetSuperClass();
307 }
308 EXPECT_EQ(klass->GetReferenceInstanceOffsets() == 0, total_num_reference_instance_fields == 0);
309 }
310
AssertDexFileClass(mirror::ClassLoader * class_loader,const std::string & descriptor)311 void AssertDexFileClass(mirror::ClassLoader* class_loader, const std::string& descriptor)
312 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
313 ASSERT_TRUE(descriptor != NULL);
314 Thread* self = Thread::Current();
315 StackHandleScope<1> hs(self);
316 Handle<mirror::Class> klass(
317 hs.NewHandle(class_linker_->FindSystemClass(self, descriptor.c_str())));
318 ASSERT_TRUE(klass.Get() != nullptr);
319 std::string temp;
320 EXPECT_STREQ(descriptor.c_str(), klass.Get()->GetDescriptor(&temp));
321 EXPECT_EQ(class_loader, klass->GetClassLoader());
322 if (klass->IsPrimitive()) {
323 AssertPrimitiveClass(descriptor, klass.Get());
324 } else if (klass->IsArrayClass()) {
325 AssertArrayClass(descriptor, klass);
326 } else {
327 AssertClass(descriptor, klass);
328 }
329 }
330
AssertDexFile(const DexFile * dex,mirror::ClassLoader * class_loader)331 void AssertDexFile(const DexFile* dex, mirror::ClassLoader* class_loader)
332 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
333 ASSERT_TRUE(dex != NULL);
334
335 // Verify all the classes defined in this file
336 for (size_t i = 0; i < dex->NumClassDefs(); i++) {
337 const DexFile::ClassDef& class_def = dex->GetClassDef(i);
338 const char* descriptor = dex->GetClassDescriptor(class_def);
339 AssertDexFileClass(class_loader, descriptor);
340 }
341 // Verify all the types referenced by this file
342 for (size_t i = 0; i < dex->NumTypeIds(); i++) {
343 const DexFile::TypeId& type_id = dex->GetTypeId(i);
344 const char* descriptor = dex->GetTypeDescriptor(type_id);
345 AssertDexFileClass(class_loader, descriptor);
346 }
347 class_linker_->VisitRoots(TestRootVisitor, NULL, kVisitRootFlagAllRoots);
348 // Verify the dex cache has resolution methods in all resolved method slots
349 mirror::DexCache* dex_cache = class_linker_->FindDexCache(*dex);
350 mirror::ObjectArray<mirror::ArtMethod>* resolved_methods = dex_cache->GetResolvedMethods();
351 for (size_t i = 0; i < static_cast<size_t>(resolved_methods->GetLength()); i++) {
352 EXPECT_TRUE(resolved_methods->Get(i) != NULL) << dex->GetLocation() << " i=" << i;
353 }
354 }
355
TestRootVisitor(mirror::Object ** root,void *,uint32_t,RootType)356 static void TestRootVisitor(mirror::Object** root, void*, uint32_t, RootType) {
357 EXPECT_TRUE(*root != NULL);
358 }
359 };
360
361 struct CheckOffset {
362 size_t cpp_offset;
363 const char* java_name;
CheckOffsetart::CheckOffset364 CheckOffset(size_t c, const char* j) : cpp_offset(c), java_name(j) {}
365 };
366
367 template <typename T>
368 struct CheckOffsets {
CheckOffsetsart::CheckOffsets369 CheckOffsets(bool is_static, const char* class_descriptor)
370 : is_static(is_static), class_descriptor(class_descriptor) {}
371 bool is_static;
372 std::string class_descriptor;
373 std::vector<CheckOffset> offsets;
374
Checkart::CheckOffsets375 bool Check() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
376 Thread* self = Thread::Current();
377 mirror::Class* klass =
378 Runtime::Current()->GetClassLinker()->FindSystemClass(self, class_descriptor.c_str());
379 CHECK(klass != NULL) << class_descriptor;
380
381 bool error = false;
382
383 if (!klass->IsClassClass() && !is_static) {
384 size_t expected_size = is_static ? klass->GetClassSize(): klass->GetObjectSize();
385 if (sizeof(T) != expected_size) {
386 LOG(ERROR) << "Class size mismatch:"
387 << " class=" << class_descriptor
388 << " Java=" << expected_size
389 << " C++=" << sizeof(T);
390 error = true;
391 }
392 }
393
394 size_t num_fields = is_static ? klass->NumStaticFields() : klass->NumInstanceFields();
395 if (offsets.size() != num_fields) {
396 LOG(ERROR) << "Field count mismatch:"
397 << " class=" << class_descriptor
398 << " Java=" << num_fields
399 << " C++=" << offsets.size();
400 error = true;
401 }
402
403 for (size_t i = 0; i < offsets.size(); i++) {
404 mirror::ArtField* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i);
405 StringPiece field_name(field->GetName());
406 if (field_name != offsets[i].java_name) {
407 error = true;
408 }
409 }
410 if (error) {
411 for (size_t i = 0; i < offsets.size(); i++) {
412 CheckOffset& offset = offsets[i];
413 mirror::ArtField* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i);
414 StringPiece field_name(field->GetName());
415 if (field_name != offsets[i].java_name) {
416 LOG(ERROR) << "JAVA FIELD ORDER MISMATCH NEXT LINE:";
417 }
418 LOG(ERROR) << "Java field order:"
419 << " i=" << i << " class=" << class_descriptor
420 << " Java=" << field_name
421 << " CheckOffsets=" << offset.java_name;
422 }
423 }
424
425 for (size_t i = 0; i < offsets.size(); i++) {
426 CheckOffset& offset = offsets[i];
427 mirror::ArtField* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i);
428 if (field->GetOffset().Uint32Value() != offset.cpp_offset) {
429 error = true;
430 }
431 }
432 if (error) {
433 for (size_t i = 0; i < offsets.size(); i++) {
434 CheckOffset& offset = offsets[i];
435 mirror::ArtField* field = is_static ? klass->GetStaticField(i) : klass->GetInstanceField(i);
436 if (field->GetOffset().Uint32Value() != offset.cpp_offset) {
437 LOG(ERROR) << "OFFSET MISMATCH NEXT LINE:";
438 }
439 LOG(ERROR) << "Offset: class=" << class_descriptor << " field=" << offset.java_name
440 << " Java=" << field->GetOffset().Uint32Value() << " C++=" << offset.cpp_offset;
441 }
442 }
443
444 return !error;
445 };
446
447 private:
448 DISALLOW_IMPLICIT_CONSTRUCTORS(CheckOffsets);
449 };
450
451 // Note that ClassLinkerTest.ValidateFieldOrderOfJavaCppUnionClasses
452 // is first since if it is failing, others are unlikely to succeed.
453
454 struct ObjectOffsets : public CheckOffsets<mirror::Object> {
ObjectOffsetsart::ObjectOffsets455 ObjectOffsets() : CheckOffsets<mirror::Object>(false, "Ljava/lang/Object;") {
456 // alphabetical references
457 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Object, klass_), "shadow$_klass_"));
458
459 // alphabetical 32-bit
460 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Object, monitor_), "shadow$_monitor_"));
461 #ifdef USE_BAKER_OR_BROOKS_READ_BARRIER
462 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Object, x_rb_ptr_), "shadow$_x_rb_ptr_"));
463 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Object, x_xpadding_), "shadow$_x_xpadding_"));
464 #endif
465 };
466 };
467
468 struct ArtFieldOffsets : public CheckOffsets<mirror::ArtField> {
ArtFieldOffsetsart::ArtFieldOffsets469 ArtFieldOffsets() : CheckOffsets<mirror::ArtField>(false, "Ljava/lang/reflect/ArtField;") {
470 // alphabetical references
471 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtField, declaring_class_), "declaringClass"));
472
473 // alphabetical 32-bit
474 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtField, access_flags_), "accessFlags"));
475 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtField, field_dex_idx_), "fieldDexIndex"));
476 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtField, offset_), "offset"));
477 };
478 };
479
480 struct ArtMethodOffsets : public CheckOffsets<mirror::ArtMethod> {
ArtMethodOffsetsart::ArtMethodOffsets481 ArtMethodOffsets() : CheckOffsets<mirror::ArtMethod>(false, "Ljava/lang/reflect/ArtMethod;") {
482 // alphabetical references
483 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, declaring_class_), "declaringClass"));
484 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, dex_cache_resolved_methods_), "dexCacheResolvedMethods"));
485 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, dex_cache_resolved_types_), "dexCacheResolvedTypes"));
486 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, dex_cache_strings_), "dexCacheStrings"));
487
488 // alphabetical 64-bit
489 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, entry_point_from_interpreter_), "entryPointFromInterpreter"));
490 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, entry_point_from_jni_), "entryPointFromJni"));
491 #if defined(ART_USE_PORTABLE_COMPILER)
492 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, entry_point_from_portable_compiled_code_), "entryPointFromPortableCompiledCode"));
493 #endif
494 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, entry_point_from_quick_compiled_code_), "entryPointFromQuickCompiledCode"));
495 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, gc_map_), "gcMap"));
496
497 // alphabetical 32-bit
498 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, access_flags_), "accessFlags"));
499 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, dex_code_item_offset_), "dexCodeItemOffset"));
500 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, dex_method_index_), "dexMethodIndex"));
501 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ArtMethod, method_index_), "methodIndex"));
502 };
503 };
504
505 struct ClassOffsets : public CheckOffsets<mirror::Class> {
ClassOffsetsart::ClassOffsets506 ClassOffsets() : CheckOffsets<mirror::Class>(false, "Ljava/lang/Class;") {
507 // alphabetical references
508 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, class_loader_), "classLoader"));
509 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, component_type_), "componentType"));
510 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, dex_cache_), "dexCache"));
511 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, direct_methods_), "directMethods"));
512 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, ifields_), "iFields"));
513 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, iftable_), "ifTable"));
514 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, imtable_), "imTable"));
515 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, name_), "name"));
516 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, sfields_), "sFields"));
517 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, super_class_), "superClass"));
518 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, verify_error_class_), "verifyErrorClass"));
519 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, virtual_methods_), "virtualMethods"));
520 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, vtable_), "vtable"));
521
522 // alphabetical 32-bit
523 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, access_flags_), "accessFlags"));
524 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, class_size_), "classSize"));
525 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, clinit_thread_id_), "clinitThreadId"));
526 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, dex_class_def_idx_), "dexClassDefIndex"));
527 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, dex_type_idx_), "dexTypeIndex"));
528 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, num_reference_instance_fields_), "numReferenceInstanceFields"));
529 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, num_reference_static_fields_), "numReferenceStaticFields"));
530 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, object_size_), "objectSize"));
531 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, primitive_type_), "primitiveType"));
532 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, reference_instance_offsets_), "referenceInstanceOffsets"));
533 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, reference_static_offsets_), "referenceStaticOffsets"));
534 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Class, status_), "status"));
535 };
536 };
537
538 struct StringOffsets : public CheckOffsets<mirror::String> {
StringOffsetsart::StringOffsets539 StringOffsets() : CheckOffsets<mirror::String>(false, "Ljava/lang/String;") {
540 // alphabetical references
541 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::String, array_), "value"));
542
543 // alphabetical 32-bit
544 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::String, count_), "count"));
545 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::String, hash_code_), "hashCode"));
546 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::String, offset_), "offset"));
547 };
548 };
549
550 struct ThrowableOffsets : public CheckOffsets<mirror::Throwable> {
ThrowableOffsetsart::ThrowableOffsets551 ThrowableOffsets() : CheckOffsets<mirror::Throwable>(false, "Ljava/lang/Throwable;") {
552 // alphabetical references
553 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Throwable, cause_), "cause"));
554 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Throwable, detail_message_), "detailMessage"));
555 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Throwable, stack_state_), "stackState"));
556 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Throwable, stack_trace_), "stackTrace"));
557 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Throwable, suppressed_exceptions_), "suppressedExceptions"));
558 };
559 };
560
561 struct StackTraceElementOffsets : public CheckOffsets<mirror::StackTraceElement> {
StackTraceElementOffsetsart::StackTraceElementOffsets562 StackTraceElementOffsets() : CheckOffsets<mirror::StackTraceElement>(false, "Ljava/lang/StackTraceElement;") {
563 // alphabetical references
564 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::StackTraceElement, declaring_class_), "declaringClass"));
565 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::StackTraceElement, file_name_), "fileName"));
566 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::StackTraceElement, method_name_), "methodName"));
567 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::StackTraceElement, line_number_), "lineNumber"));
568 };
569 };
570
571 struct ClassLoaderOffsets : public CheckOffsets<mirror::ClassLoader> {
ClassLoaderOffsetsart::ClassLoaderOffsets572 ClassLoaderOffsets() : CheckOffsets<mirror::ClassLoader>(false, "Ljava/lang/ClassLoader;") {
573 // alphabetical references
574 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ClassLoader, packages_), "packages"));
575 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ClassLoader, parent_), "parent"));
576 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::ClassLoader, proxyCache_), "proxyCache"));
577 };
578 };
579
580 struct ProxyOffsets : public CheckOffsets<mirror::Proxy> {
ProxyOffsetsart::ProxyOffsets581 ProxyOffsets() : CheckOffsets<mirror::Proxy>(false, "Ljava/lang/reflect/Proxy;") {
582 // alphabetical references
583 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Proxy, h_), "h"));
584 };
585 };
586
587 struct DexCacheOffsets : public CheckOffsets<mirror::DexCache> {
DexCacheOffsetsart::DexCacheOffsets588 DexCacheOffsets() : CheckOffsets<mirror::DexCache>(false, "Ljava/lang/DexCache;") {
589 // alphabetical references
590 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, dex_), "dex"));
591 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, location_), "location"));
592 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, resolved_fields_), "resolvedFields"));
593 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, resolved_methods_), "resolvedMethods"));
594 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, resolved_types_), "resolvedTypes"));
595 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, strings_), "strings"));
596 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::DexCache, dex_file_), "dexFile"));
597 };
598 };
599
600 struct ReferenceOffsets : public CheckOffsets<mirror::Reference> {
ReferenceOffsetsart::ReferenceOffsets601 ReferenceOffsets() : CheckOffsets<mirror::Reference>(false, "Ljava/lang/ref/Reference;") {
602 // alphabetical references
603 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Reference, pending_next_), "pendingNext"));
604 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Reference, queue_), "queue"));
605 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Reference, queue_next_), "queueNext"));
606 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::Reference, referent_), "referent"));
607 };
608 };
609
610 struct FinalizerReferenceOffsets : public CheckOffsets<mirror::FinalizerReference> {
FinalizerReferenceOffsetsart::FinalizerReferenceOffsets611 FinalizerReferenceOffsets() : CheckOffsets<mirror::FinalizerReference>(false, "Ljava/lang/ref/FinalizerReference;") {
612 // alphabetical references
613 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::FinalizerReference, next_), "next"));
614 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::FinalizerReference, prev_), "prev"));
615 offsets.push_back(CheckOffset(OFFSETOF_MEMBER(mirror::FinalizerReference, zombie_), "zombie"));
616 };
617 };
618
619 // C++ fields must exactly match the fields in the Java classes. If this fails,
620 // reorder the fields in the C++ class. Managed class fields are ordered by
621 // ClassLinker::LinkFields.
TEST_F(ClassLinkerTest,ValidateFieldOrderOfJavaCppUnionClasses)622 TEST_F(ClassLinkerTest, ValidateFieldOrderOfJavaCppUnionClasses) {
623 ScopedObjectAccess soa(Thread::Current());
624 EXPECT_TRUE(ObjectOffsets().Check());
625 EXPECT_TRUE(ArtFieldOffsets().Check());
626 EXPECT_TRUE(ArtMethodOffsets().Check());
627 EXPECT_TRUE(ClassOffsets().Check());
628 EXPECT_TRUE(StringOffsets().Check());
629 EXPECT_TRUE(ThrowableOffsets().Check());
630 EXPECT_TRUE(StackTraceElementOffsets().Check());
631 EXPECT_TRUE(ClassLoaderOffsets().Check());
632 EXPECT_TRUE(ProxyOffsets().Check());
633 EXPECT_TRUE(DexCacheOffsets().Check());
634 EXPECT_TRUE(ReferenceOffsets().Check());
635 EXPECT_TRUE(FinalizerReferenceOffsets().Check());
636 }
637
TEST_F(ClassLinkerTest,FindClassNonexistent)638 TEST_F(ClassLinkerTest, FindClassNonexistent) {
639 ScopedObjectAccess soa(Thread::Current());
640 AssertNonExistentClass("NoSuchClass;");
641 AssertNonExistentClass("LNoSuchClass;");
642 }
643
TEST_F(ClassLinkerTest,FindClassNested)644 TEST_F(ClassLinkerTest, FindClassNested) {
645 ScopedObjectAccess soa(Thread::Current());
646 StackHandleScope<1> hs(soa.Self());
647 Handle<mirror::ClassLoader> class_loader(
648 hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("Nested"))));
649
650 mirror::Class* outer = class_linker_->FindClass(soa.Self(), "LNested;", class_loader);
651 ASSERT_TRUE(outer != NULL);
652 EXPECT_EQ(0U, outer->NumVirtualMethods());
653 EXPECT_EQ(1U, outer->NumDirectMethods());
654
655 mirror::Class* inner = class_linker_->FindClass(soa.Self(), "LNested$Inner;", class_loader);
656 ASSERT_TRUE(inner != NULL);
657 EXPECT_EQ(0U, inner->NumVirtualMethods());
658 EXPECT_EQ(1U, inner->NumDirectMethods());
659 }
660
TEST_F(ClassLinkerTest,FindClass_Primitives)661 TEST_F(ClassLinkerTest, FindClass_Primitives) {
662 ScopedObjectAccess soa(Thread::Current());
663 const std::string expected("BCDFIJSZV");
664 for (int ch = 1; ch < 256; ++ch) {
665 std::string descriptor;
666 descriptor.push_back(ch);
667 if (expected.find(ch) == std::string::npos) {
668 AssertNonExistentClass(descriptor);
669 } else {
670 AssertPrimitiveClass(descriptor);
671 }
672 }
673 }
674
TEST_F(ClassLinkerTest,FindClass)675 TEST_F(ClassLinkerTest, FindClass) {
676 ScopedObjectAccess soa(Thread::Current());
677 mirror::Class* JavaLangObject = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;");
678 ASSERT_TRUE(JavaLangObject != NULL);
679 ASSERT_TRUE(JavaLangObject->GetClass() != NULL);
680 ASSERT_EQ(JavaLangObject->GetClass(), JavaLangObject->GetClass()->GetClass());
681 EXPECT_EQ(JavaLangObject, JavaLangObject->GetClass()->GetSuperClass());
682 std::string temp;
683 ASSERT_STREQ(JavaLangObject->GetDescriptor(&temp), "Ljava/lang/Object;");
684 EXPECT_TRUE(JavaLangObject->GetSuperClass() == NULL);
685 EXPECT_FALSE(JavaLangObject->HasSuperClass());
686 EXPECT_TRUE(JavaLangObject->GetClassLoader() == NULL);
687 EXPECT_EQ(mirror::Class::kStatusInitialized, JavaLangObject->GetStatus());
688 EXPECT_FALSE(JavaLangObject->IsErroneous());
689 EXPECT_TRUE(JavaLangObject->IsLoaded());
690 EXPECT_TRUE(JavaLangObject->IsResolved());
691 EXPECT_TRUE(JavaLangObject->IsVerified());
692 EXPECT_TRUE(JavaLangObject->IsInitialized());
693 EXPECT_FALSE(JavaLangObject->IsArrayInstance());
694 EXPECT_FALSE(JavaLangObject->IsArrayClass());
695 EXPECT_TRUE(JavaLangObject->GetComponentType() == NULL);
696 EXPECT_FALSE(JavaLangObject->IsInterface());
697 EXPECT_TRUE(JavaLangObject->IsPublic());
698 EXPECT_FALSE(JavaLangObject->IsFinal());
699 EXPECT_FALSE(JavaLangObject->IsPrimitive());
700 EXPECT_FALSE(JavaLangObject->IsSynthetic());
701 EXPECT_EQ(2U, JavaLangObject->NumDirectMethods());
702 EXPECT_EQ(11U, JavaLangObject->NumVirtualMethods());
703 if (!kUseBakerOrBrooksReadBarrier) {
704 EXPECT_EQ(2U, JavaLangObject->NumInstanceFields());
705 } else {
706 EXPECT_EQ(4U, JavaLangObject->NumInstanceFields());
707 }
708 EXPECT_STREQ(JavaLangObject->GetInstanceField(0)->GetName(), "shadow$_klass_");
709 EXPECT_STREQ(JavaLangObject->GetInstanceField(1)->GetName(), "shadow$_monitor_");
710 if (kUseBakerOrBrooksReadBarrier) {
711 EXPECT_STREQ(JavaLangObject->GetInstanceField(2)->GetName(), "shadow$_x_rb_ptr_");
712 EXPECT_STREQ(JavaLangObject->GetInstanceField(3)->GetName(), "shadow$_x_xpadding_");
713 }
714
715 EXPECT_EQ(0U, JavaLangObject->NumStaticFields());
716 EXPECT_EQ(0U, JavaLangObject->NumDirectInterfaces());
717
718 StackHandleScope<1> hs(soa.Self());
719 Handle<mirror::ClassLoader> class_loader(
720 hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("MyClass"))));
721 AssertNonExistentClass("LMyClass;");
722 mirror::Class* MyClass = class_linker_->FindClass(soa.Self(), "LMyClass;", class_loader);
723 ASSERT_TRUE(MyClass != NULL);
724 ASSERT_TRUE(MyClass->GetClass() != NULL);
725 ASSERT_EQ(MyClass->GetClass(), MyClass->GetClass()->GetClass());
726 EXPECT_EQ(JavaLangObject, MyClass->GetClass()->GetSuperClass());
727 ASSERT_STREQ(MyClass->GetDescriptor(&temp), "LMyClass;");
728 EXPECT_TRUE(MyClass->GetSuperClass() == JavaLangObject);
729 EXPECT_TRUE(MyClass->HasSuperClass());
730 EXPECT_EQ(class_loader.Get(), MyClass->GetClassLoader());
731 EXPECT_EQ(mirror::Class::kStatusResolved, MyClass->GetStatus());
732 EXPECT_FALSE(MyClass->IsErroneous());
733 EXPECT_TRUE(MyClass->IsLoaded());
734 EXPECT_TRUE(MyClass->IsResolved());
735 EXPECT_FALSE(MyClass->IsVerified());
736 EXPECT_FALSE(MyClass->IsInitialized());
737 EXPECT_FALSE(MyClass->IsArrayInstance());
738 EXPECT_FALSE(MyClass->IsArrayClass());
739 EXPECT_TRUE(MyClass->GetComponentType() == NULL);
740 EXPECT_FALSE(MyClass->IsInterface());
741 EXPECT_FALSE(MyClass->IsPublic());
742 EXPECT_FALSE(MyClass->IsFinal());
743 EXPECT_FALSE(MyClass->IsPrimitive());
744 EXPECT_FALSE(MyClass->IsSynthetic());
745 EXPECT_EQ(1U, MyClass->NumDirectMethods());
746 EXPECT_EQ(0U, MyClass->NumVirtualMethods());
747 EXPECT_EQ(0U, MyClass->NumInstanceFields());
748 EXPECT_EQ(0U, MyClass->NumStaticFields());
749 EXPECT_EQ(0U, MyClass->NumDirectInterfaces());
750
751 EXPECT_EQ(JavaLangObject->GetClass()->GetClass(), MyClass->GetClass()->GetClass());
752
753 // created by class_linker
754 AssertArrayClass("[C", "C", NULL);
755 AssertArrayClass("[Ljava/lang/Object;", "Ljava/lang/Object;", NULL);
756 // synthesized on the fly
757 AssertArrayClass("[[C", "[C", NULL);
758 AssertArrayClass("[[[LMyClass;", "[[LMyClass;", class_loader.Get());
759 // or not available at all
760 AssertNonExistentClass("[[[[LNonExistentClass;");
761 }
762
TEST_F(ClassLinkerTest,LibCore)763 TEST_F(ClassLinkerTest, LibCore) {
764 ScopedObjectAccess soa(Thread::Current());
765 AssertDexFile(java_lang_dex_file_, NULL);
766 }
767
768 // The first reference array element must be a multiple of 4 bytes from the
769 // start of the object
TEST_F(ClassLinkerTest,ValidateObjectArrayElementsOffset)770 TEST_F(ClassLinkerTest, ValidateObjectArrayElementsOffset) {
771 ScopedObjectAccess soa(Thread::Current());
772 mirror::Class* array_class = class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/String;");
773 mirror::ObjectArray<mirror::String>* array =
774 mirror::ObjectArray<mirror::String>::Alloc(soa.Self(), array_class, 0);
775 uintptr_t data_offset =
776 reinterpret_cast<uintptr_t>(array->GetRawData(sizeof(mirror::HeapReference<mirror::String>),
777 0));
778 if (sizeof(mirror::HeapReference<mirror::String>) == sizeof(int32_t)) {
779 EXPECT_TRUE(IsAligned<4>(data_offset)); // Check 4 byte alignment.
780 } else {
781 EXPECT_TRUE(IsAligned<8>(data_offset)); // Check 8 byte alignment.
782 }
783 }
784
TEST_F(ClassLinkerTest,ValidatePrimitiveArrayElementsOffset)785 TEST_F(ClassLinkerTest, ValidatePrimitiveArrayElementsOffset) {
786 ScopedObjectAccess soa(Thread::Current());
787 StackHandleScope<5> hs(soa.Self());
788 Handle<mirror::LongArray> long_array(hs.NewHandle(mirror::LongArray::Alloc(soa.Self(), 0)));
789 EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "[J"), long_array->GetClass());
790 uintptr_t data_offset = reinterpret_cast<uintptr_t>(long_array->GetData());
791 EXPECT_TRUE(IsAligned<8>(data_offset)); // Longs require 8 byte alignment
792
793 Handle<mirror::DoubleArray> double_array(hs.NewHandle(mirror::DoubleArray::Alloc(soa.Self(), 0)));
794 EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "[D"), double_array->GetClass());
795 data_offset = reinterpret_cast<uintptr_t>(double_array->GetData());
796 EXPECT_TRUE(IsAligned<8>(data_offset)); // Doubles require 8 byte alignment
797
798 Handle<mirror::IntArray> int_array(hs.NewHandle(mirror::IntArray::Alloc(soa.Self(), 0)));
799 EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "[I"), int_array->GetClass());
800 data_offset = reinterpret_cast<uintptr_t>(int_array->GetData());
801 EXPECT_TRUE(IsAligned<4>(data_offset)); // Ints require 4 byte alignment
802
803 Handle<mirror::CharArray> char_array(hs.NewHandle(mirror::CharArray::Alloc(soa.Self(), 0)));
804 EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "[C"), char_array->GetClass());
805 data_offset = reinterpret_cast<uintptr_t>(char_array->GetData());
806 EXPECT_TRUE(IsAligned<2>(data_offset)); // Chars require 2 byte alignment
807
808 Handle<mirror::ShortArray> short_array(hs.NewHandle(mirror::ShortArray::Alloc(soa.Self(), 0)));
809 EXPECT_EQ(class_linker_->FindSystemClass(soa.Self(), "[S"), short_array->GetClass());
810 data_offset = reinterpret_cast<uintptr_t>(short_array->GetData());
811 EXPECT_TRUE(IsAligned<2>(data_offset)); // Shorts require 2 byte alignment
812
813 // Take it as given that bytes and booleans have byte alignment
814 }
815
TEST_F(ClassLinkerTest,ValidateBoxedTypes)816 TEST_F(ClassLinkerTest, ValidateBoxedTypes) {
817 // Validate that the "value" field is always the 0th field in each of java.lang's box classes.
818 // This lets UnboxPrimitive avoid searching for the field by name at runtime.
819 ScopedObjectAccess soa(Thread::Current());
820 NullHandle<mirror::ClassLoader> class_loader;
821 mirror::Class* c;
822 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Boolean;", class_loader);
823 EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName());
824 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Byte;", class_loader);
825 EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName());
826 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Character;", class_loader);
827 EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName());
828 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Double;", class_loader);
829 EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName());
830 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Float;", class_loader);
831 EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName());
832 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Integer;", class_loader);
833 EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName());
834 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Long;", class_loader);
835 EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName());
836 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Short;", class_loader);
837 EXPECT_STREQ("value", c->GetIFields()->Get(0)->GetName());
838 }
839
TEST_F(ClassLinkerTest,TwoClassLoadersOneClass)840 TEST_F(ClassLinkerTest, TwoClassLoadersOneClass) {
841 ScopedObjectAccess soa(Thread::Current());
842 StackHandleScope<2> hs(soa.Self());
843 Handle<mirror::ClassLoader> class_loader_1(
844 hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("MyClass"))));
845 Handle<mirror::ClassLoader> class_loader_2(
846 hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("MyClass"))));
847 mirror::Class* MyClass_1 = class_linker_->FindClass(soa.Self(), "LMyClass;", class_loader_1);
848 mirror::Class* MyClass_2 = class_linker_->FindClass(soa.Self(), "LMyClass;", class_loader_2);
849 EXPECT_TRUE(MyClass_1 != nullptr);
850 EXPECT_TRUE(MyClass_2 != nullptr);
851 EXPECT_NE(MyClass_1, MyClass_2);
852 }
853
TEST_F(ClassLinkerTest,StaticFields)854 TEST_F(ClassLinkerTest, StaticFields) {
855 ScopedObjectAccess soa(Thread::Current());
856 StackHandleScope<2> hs(soa.Self());
857 Handle<mirror::ClassLoader> class_loader(
858 hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("Statics"))));
859 Handle<mirror::Class> statics(
860 hs.NewHandle(class_linker_->FindClass(soa.Self(), "LStatics;", class_loader)));
861 class_linker_->EnsureInitialized(statics, true, true);
862
863 // Static final primitives that are initialized by a compile-time constant
864 // expression resolve to a copy of a constant value from the constant pool.
865 // So <clinit> should be null.
866 mirror::ArtMethod* clinit = statics->FindDirectMethod("<clinit>", "()V");
867 EXPECT_TRUE(clinit == NULL);
868
869 EXPECT_EQ(9U, statics->NumStaticFields());
870
871 mirror::ArtField* s0 = mirror::Class::FindStaticField(soa.Self(), statics, "s0", "Z");
872 std::string temp;
873 EXPECT_STREQ(s0->GetClass()->GetDescriptor(&temp), "Ljava/lang/reflect/ArtField;");
874 EXPECT_EQ(s0->GetTypeAsPrimitiveType(), Primitive::kPrimBoolean);
875 EXPECT_EQ(true, s0->GetBoolean(statics.Get()));
876 s0->SetBoolean<false>(statics.Get(), false);
877
878 mirror::ArtField* s1 = mirror::Class::FindStaticField(soa.Self(), statics, "s1", "B");
879 EXPECT_EQ(s1->GetTypeAsPrimitiveType(), Primitive::kPrimByte);
880 EXPECT_EQ(5, s1->GetByte(statics.Get()));
881 s1->SetByte<false>(statics.Get(), 6);
882
883 mirror::ArtField* s2 = mirror::Class::FindStaticField(soa.Self(), statics, "s2", "C");
884 EXPECT_EQ(s2->GetTypeAsPrimitiveType(), Primitive::kPrimChar);
885 EXPECT_EQ('a', s2->GetChar(statics.Get()));
886 s2->SetChar<false>(statics.Get(), 'b');
887
888 mirror::ArtField* s3 = mirror::Class::FindStaticField(soa.Self(), statics, "s3", "S");
889 EXPECT_EQ(s3->GetTypeAsPrimitiveType(), Primitive::kPrimShort);
890 EXPECT_EQ(-536, s3->GetShort(statics.Get()));
891 s3->SetShort<false>(statics.Get(), -535);
892
893 mirror::ArtField* s4 = mirror::Class::FindStaticField(soa.Self(), statics, "s4", "I");
894 EXPECT_EQ(s4->GetTypeAsPrimitiveType(), Primitive::kPrimInt);
895 EXPECT_EQ(2000000000, s4->GetInt(statics.Get()));
896 s4->SetInt<false>(statics.Get(), 2000000001);
897
898 mirror::ArtField* s5 = mirror::Class::FindStaticField(soa.Self(), statics, "s5", "J");
899 EXPECT_EQ(s5->GetTypeAsPrimitiveType(), Primitive::kPrimLong);
900 EXPECT_EQ(0x1234567890abcdefLL, s5->GetLong(statics.Get()));
901 s5->SetLong<false>(statics.Get(), INT64_C(0x34567890abcdef12));
902
903 mirror::ArtField* s6 = mirror::Class::FindStaticField(soa.Self(), statics, "s6", "F");
904 EXPECT_EQ(s6->GetTypeAsPrimitiveType(), Primitive::kPrimFloat);
905 EXPECT_EQ(0.5, s6->GetFloat(statics.Get()));
906 s6->SetFloat<false>(statics.Get(), 0.75);
907
908 mirror::ArtField* s7 = mirror::Class::FindStaticField(soa.Self(), statics, "s7", "D");
909 EXPECT_EQ(s7->GetTypeAsPrimitiveType(), Primitive::kPrimDouble);
910 EXPECT_EQ(16777217, s7->GetDouble(statics.Get()));
911 s7->SetDouble<false>(statics.Get(), 16777219);
912
913 mirror::ArtField* s8 = mirror::Class::FindStaticField(soa.Self(), statics, "s8",
914 "Ljava/lang/String;");
915 EXPECT_EQ(s8->GetTypeAsPrimitiveType(), Primitive::kPrimNot);
916 EXPECT_TRUE(s8->GetObject(statics.Get())->AsString()->Equals("android"));
917 s8->SetObject<false>(s8->GetDeclaringClass(),
918 mirror::String::AllocFromModifiedUtf8(soa.Self(), "robot"));
919
920 // TODO: Remove EXPECT_FALSE when GCC can handle EXPECT_EQ
921 // http://code.google.com/p/googletest/issues/detail?id=322
922 EXPECT_FALSE(s0->GetBoolean(statics.Get()));
923 EXPECT_EQ(6, s1->GetByte(statics.Get()));
924 EXPECT_EQ('b', s2->GetChar(statics.Get()));
925 EXPECT_EQ(-535, s3->GetShort(statics.Get()));
926 EXPECT_EQ(2000000001, s4->GetInt(statics.Get()));
927 EXPECT_EQ(INT64_C(0x34567890abcdef12), s5->GetLong(statics.Get()));
928 EXPECT_EQ(0.75, s6->GetFloat(statics.Get()));
929 EXPECT_EQ(16777219, s7->GetDouble(statics.Get()));
930 EXPECT_TRUE(s8->GetObject(statics.Get())->AsString()->Equals("robot"));
931 }
932
TEST_F(ClassLinkerTest,Interfaces)933 TEST_F(ClassLinkerTest, Interfaces) {
934 ScopedObjectAccess soa(Thread::Current());
935 StackHandleScope<6> hs(soa.Self());
936 Handle<mirror::ClassLoader> class_loader(
937 hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("Interfaces"))));
938 Handle<mirror::Class> I(
939 hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInterfaces$I;", class_loader)));
940 Handle<mirror::Class> J(
941 hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInterfaces$J;", class_loader)));
942 Handle<mirror::Class> K(
943 hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInterfaces$K;", class_loader)));
944 Handle<mirror::Class> A(
945 hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInterfaces$A;", class_loader)));
946 Handle<mirror::Class> B(
947 hs.NewHandle(class_linker_->FindClass(soa.Self(), "LInterfaces$B;", class_loader)));
948 EXPECT_TRUE(I->IsAssignableFrom(A.Get()));
949 EXPECT_TRUE(J->IsAssignableFrom(A.Get()));
950 EXPECT_TRUE(J->IsAssignableFrom(K.Get()));
951 EXPECT_TRUE(K->IsAssignableFrom(B.Get()));
952 EXPECT_TRUE(J->IsAssignableFrom(B.Get()));
953
954 const Signature void_sig = I->GetDexCache()->GetDexFile()->CreateSignature("()V");
955 mirror::ArtMethod* Ii = I->FindVirtualMethod("i", void_sig);
956 mirror::ArtMethod* Jj1 = J->FindVirtualMethod("j1", void_sig);
957 mirror::ArtMethod* Jj2 = J->FindVirtualMethod("j2", void_sig);
958 mirror::ArtMethod* Kj1 = K->FindInterfaceMethod("j1", void_sig);
959 mirror::ArtMethod* Kj2 = K->FindInterfaceMethod("j2", void_sig);
960 mirror::ArtMethod* Kk = K->FindInterfaceMethod("k", void_sig);
961 mirror::ArtMethod* Ai = A->FindVirtualMethod("i", void_sig);
962 mirror::ArtMethod* Aj1 = A->FindVirtualMethod("j1", void_sig);
963 mirror::ArtMethod* Aj2 = A->FindVirtualMethod("j2", void_sig);
964 ASSERT_TRUE(Ii != NULL);
965 ASSERT_TRUE(Jj1 != NULL);
966 ASSERT_TRUE(Jj2 != NULL);
967 ASSERT_TRUE(Kj1 != NULL);
968 ASSERT_TRUE(Kj2 != NULL);
969 ASSERT_TRUE(Kk != NULL);
970 ASSERT_TRUE(Ai != NULL);
971 ASSERT_TRUE(Aj1 != NULL);
972 ASSERT_TRUE(Aj2 != NULL);
973 EXPECT_NE(Ii, Ai);
974 EXPECT_NE(Jj1, Aj1);
975 EXPECT_NE(Jj2, Aj2);
976 EXPECT_EQ(Kj1, Jj1);
977 EXPECT_EQ(Kj2, Jj2);
978 EXPECT_EQ(Ai, A->FindVirtualMethodForInterface(Ii));
979 EXPECT_EQ(Aj1, A->FindVirtualMethodForInterface(Jj1));
980 EXPECT_EQ(Aj2, A->FindVirtualMethodForInterface(Jj2));
981 EXPECT_EQ(Ai, A->FindVirtualMethodForVirtualOrInterface(Ii));
982 EXPECT_EQ(Aj1, A->FindVirtualMethodForVirtualOrInterface(Jj1));
983 EXPECT_EQ(Aj2, A->FindVirtualMethodForVirtualOrInterface(Jj2));
984
985 mirror::ArtField* Afoo = mirror::Class::FindStaticField(soa.Self(), A, "foo",
986 "Ljava/lang/String;");
987 mirror::ArtField* Bfoo = mirror::Class::FindStaticField(soa.Self(), B, "foo",
988 "Ljava/lang/String;");
989 mirror::ArtField* Jfoo = mirror::Class::FindStaticField(soa.Self(), J, "foo",
990 "Ljava/lang/String;");
991 mirror::ArtField* Kfoo = mirror::Class::FindStaticField(soa.Self(), K, "foo",
992 "Ljava/lang/String;");
993 ASSERT_TRUE(Afoo != NULL);
994 EXPECT_EQ(Afoo, Bfoo);
995 EXPECT_EQ(Afoo, Jfoo);
996 EXPECT_EQ(Afoo, Kfoo);
997 }
998
TEST_F(ClassLinkerTest,ResolveVerifyAndClinit)999 TEST_F(ClassLinkerTest, ResolveVerifyAndClinit) {
1000 // pretend we are trying to get the static storage for the StaticsFromCode class.
1001
1002 // case 1, get the uninitialized storage from StaticsFromCode.<clinit>
1003 // case 2, get the initialized storage from StaticsFromCode.getS0
1004
1005 ScopedObjectAccess soa(Thread::Current());
1006 jobject jclass_loader = LoadDex("StaticsFromCode");
1007 StackHandleScope<1> hs(soa.Self());
1008 Handle<mirror::ClassLoader> class_loader(
1009 hs.NewHandle(soa.Decode<mirror::ClassLoader*>(jclass_loader)));
1010 const DexFile* dex_file = Runtime::Current()->GetCompileTimeClassPath(jclass_loader)[0];
1011 CHECK(dex_file != NULL);
1012 mirror::Class* klass = class_linker_->FindClass(soa.Self(), "LStaticsFromCode;", class_loader);
1013 mirror::ArtMethod* clinit = klass->FindClassInitializer();
1014 mirror::ArtMethod* getS0 = klass->FindDirectMethod("getS0", "()Ljava/lang/Object;");
1015 const DexFile::StringId* string_id = dex_file->FindStringId("LStaticsFromCode;");
1016 ASSERT_TRUE(string_id != NULL);
1017 const DexFile::TypeId* type_id = dex_file->FindTypeId(dex_file->GetIndexForStringId(*string_id));
1018 ASSERT_TRUE(type_id != NULL);
1019 uint32_t type_idx = dex_file->GetIndexForTypeId(*type_id);
1020 mirror::Class* uninit = ResolveVerifyAndClinit(type_idx, clinit, Thread::Current(), true, false);
1021 EXPECT_TRUE(uninit != NULL);
1022 EXPECT_FALSE(uninit->IsInitialized());
1023 mirror::Class* init = ResolveVerifyAndClinit(type_idx, getS0, Thread::Current(), true, false);
1024 EXPECT_TRUE(init != NULL);
1025 EXPECT_TRUE(init->IsInitialized());
1026 }
1027
TEST_F(ClassLinkerTest,FinalizableBit)1028 TEST_F(ClassLinkerTest, FinalizableBit) {
1029 ScopedObjectAccess soa(Thread::Current());
1030 mirror::Class* c;
1031
1032 // Object has a finalize method, but we know it's empty.
1033 c = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;");
1034 EXPECT_FALSE(c->IsFinalizable());
1035
1036 // Enum has a finalize method to prevent its subclasses from implementing one.
1037 c = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Enum;");
1038 EXPECT_FALSE(c->IsFinalizable());
1039
1040 // RoundingMode is an enum.
1041 c = class_linker_->FindSystemClass(soa.Self(), "Ljava/math/RoundingMode;");
1042 EXPECT_FALSE(c->IsFinalizable());
1043
1044 // RandomAccessFile extends Object and overrides finalize.
1045 c = class_linker_->FindSystemClass(soa.Self(), "Ljava/io/RandomAccessFile;");
1046 EXPECT_TRUE(c->IsFinalizable());
1047
1048 // FileInputStream is finalizable and extends InputStream which isn't.
1049 c = class_linker_->FindSystemClass(soa.Self(), "Ljava/io/InputStream;");
1050 EXPECT_FALSE(c->IsFinalizable());
1051 c = class_linker_->FindSystemClass(soa.Self(), "Ljava/io/FileInputStream;");
1052 EXPECT_TRUE(c->IsFinalizable());
1053
1054 // ScheduledThreadPoolExecutor doesn't have a finalize method but
1055 // extends ThreadPoolExecutor which does.
1056 c = class_linker_->FindSystemClass(soa.Self(), "Ljava/util/concurrent/ThreadPoolExecutor;");
1057 EXPECT_TRUE(c->IsFinalizable());
1058 c = class_linker_->FindSystemClass(soa.Self(), "Ljava/util/concurrent/ScheduledThreadPoolExecutor;");
1059 EXPECT_TRUE(c->IsFinalizable());
1060 }
1061
TEST_F(ClassLinkerTest,ClassRootDescriptors)1062 TEST_F(ClassLinkerTest, ClassRootDescriptors) {
1063 ScopedObjectAccess soa(Thread::Current());
1064 std::string temp;
1065 for (int i = 0; i < ClassLinker::kClassRootsMax; i++) {
1066 mirror::Class* klass = class_linker_->GetClassRoot(ClassLinker::ClassRoot(i));
1067 EXPECT_GT(strlen(klass->GetDescriptor(&temp)), 0U);
1068 EXPECT_STREQ(klass->GetDescriptor(&temp),
1069 class_linker_->GetClassRootDescriptor(ClassLinker::ClassRoot(i))) << " i = " << i;
1070 }
1071 }
1072
TEST_F(ClassLinkerTest,ValidatePredefinedClassSizes)1073 TEST_F(ClassLinkerTest, ValidatePredefinedClassSizes) {
1074 ScopedObjectAccess soa(Thread::Current());
1075 NullHandle<mirror::ClassLoader> class_loader;
1076 mirror::Class* c;
1077
1078 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Class;", class_loader);
1079 EXPECT_EQ(c->GetClassSize(), mirror::Class::ClassClassSize());
1080
1081 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/Object;", class_loader);
1082 EXPECT_EQ(c->GetClassSize(), mirror::Object::ClassSize());
1083
1084 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/String;", class_loader);
1085 EXPECT_EQ(c->GetClassSize(), mirror::String::ClassSize());
1086
1087 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/DexCache;", class_loader);
1088 EXPECT_EQ(c->GetClassSize(), mirror::DexCache::ClassSize());
1089
1090 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/reflect/ArtField;", class_loader);
1091 EXPECT_EQ(c->GetClassSize(), mirror::ArtField::ClassSize());
1092
1093 c = class_linker_->FindClass(soa.Self(), "Ljava/lang/reflect/ArtMethod;", class_loader);
1094 EXPECT_EQ(c->GetClassSize(), mirror::ArtMethod::ClassSize());
1095 }
1096
CheckMethod(mirror::ArtMethod * method,bool verified)1097 static void CheckMethod(mirror::ArtMethod* method, bool verified)
1098 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
1099 if (!method->IsNative() && !method->IsAbstract()) {
1100 EXPECT_EQ((method->GetAccessFlags() & kAccPreverified) != 0U, verified)
1101 << PrettyMethod(method, true);
1102 }
1103 }
1104
CheckPreverified(mirror::Class * c,bool preverified)1105 static void CheckPreverified(mirror::Class* c, bool preverified)
1106 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
1107 EXPECT_EQ((c->GetAccessFlags() & kAccPreverified) != 0U, preverified)
1108 << "Class " << PrettyClass(c) << " not as expected";
1109 for (uint32_t i = 0; i < c->NumDirectMethods(); ++i) {
1110 CheckMethod(c->GetDirectMethod(i), preverified);
1111 }
1112 for (uint32_t i = 0; i < c->NumVirtualMethods(); ++i) {
1113 CheckMethod(c->GetVirtualMethod(i), preverified);
1114 }
1115 }
1116
TEST_F(ClassLinkerTest,Preverified_InitializedBoot)1117 TEST_F(ClassLinkerTest, Preverified_InitializedBoot) {
1118 ScopedObjectAccess soa(Thread::Current());
1119
1120 mirror::Class* JavaLangObject = class_linker_->FindSystemClass(soa.Self(), "Ljava/lang/Object;");
1121 ASSERT_TRUE(JavaLangObject != NULL);
1122 EXPECT_TRUE(JavaLangObject->IsInitialized()) << "Not testing already initialized class from the "
1123 "core";
1124 CheckPreverified(JavaLangObject, true);
1125 }
1126
TEST_F(ClassLinkerTest,Preverified_UninitializedBoot)1127 TEST_F(ClassLinkerTest, Preverified_UninitializedBoot) {
1128 ScopedObjectAccess soa(Thread::Current());
1129
1130 StackHandleScope<1> hs(soa.Self());
1131
1132 Handle<mirror::Class> security_manager(hs.NewHandle(class_linker_->FindSystemClass(
1133 soa.Self(), "Ljava/lang/SecurityManager;")));
1134 EXPECT_FALSE(security_manager->IsInitialized()) << "Not testing uninitialized class from the "
1135 "core";
1136
1137 CheckPreverified(security_manager.Get(), false);
1138
1139 class_linker_->EnsureInitialized(security_manager, true, true);
1140 CheckPreverified(security_manager.Get(), true);
1141 }
1142
TEST_F(ClassLinkerTest,Preverified_App)1143 TEST_F(ClassLinkerTest, Preverified_App) {
1144 ScopedObjectAccess soa(Thread::Current());
1145
1146 StackHandleScope<2> hs(soa.Self());
1147 Handle<mirror::ClassLoader> class_loader(
1148 hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("Statics"))));
1149 Handle<mirror::Class> statics(
1150 hs.NewHandle(class_linker_->FindClass(soa.Self(), "LStatics;", class_loader)));
1151
1152 CheckPreverified(statics.Get(), false);
1153
1154 class_linker_->EnsureInitialized(statics, true, true);
1155 CheckPreverified(statics.Get(), true);
1156 }
1157
1158 } // namespace art
1159