Directory restructuring of object.h
Break object.h into constituent files.
Reduce number of #includes in other GC header files.
Introduce -inl.h files to avoid mirror files #include-ing each other.
Check invariants of verifier RegTypes for all constructors.
Change-Id: Iecf1171c02910ac152d52947330ef456df4043bc
diff --git a/src/mirror/abstract_method.cc b/src/mirror/abstract_method.cc
new file mode 100644
index 0000000..4641941
--- /dev/null
+++ b/src/mirror/abstract_method.cc
@@ -0,0 +1,376 @@
+/*
+ * 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 "abstract_method.h"
+
+#include "abstract_method-inl.h"
+#include "class-inl.h"
+#include "base/stringpiece.h"
+#include "gc/card_table-inl.h"
+#include "interpreter/interpreter.h"
+#include "jni_internal.h"
+#include "object-inl.h"
+#include "object_array.h"
+#include "object_array-inl.h"
+#include "string.h"
+#include "object_utils.h"
+
+namespace art {
+namespace mirror {
+
+// TODO: get global references for these
+Class* AbstractMethod::java_lang_reflect_Constructor_ = NULL;
+Class* AbstractMethod::java_lang_reflect_Method_ = NULL;
+
+InvokeType AbstractMethod::GetInvokeType() const {
+ // TODO: kSuper?
+ if (GetDeclaringClass()->IsInterface()) {
+ return kInterface;
+ } else if (IsStatic()) {
+ return kStatic;
+ } else if (IsDirect()) {
+ return kDirect;
+ } else {
+ return kVirtual;
+ }
+}
+
+void AbstractMethod::SetClasses(Class* java_lang_reflect_Constructor, Class* java_lang_reflect_Method) {
+ CHECK(java_lang_reflect_Constructor_ == NULL);
+ CHECK(java_lang_reflect_Constructor != NULL);
+ java_lang_reflect_Constructor_ = java_lang_reflect_Constructor;
+
+ CHECK(java_lang_reflect_Method_ == NULL);
+ CHECK(java_lang_reflect_Method != NULL);
+ java_lang_reflect_Method_ = java_lang_reflect_Method;
+}
+
+void AbstractMethod::ResetClasses() {
+ CHECK(java_lang_reflect_Constructor_ != NULL);
+ java_lang_reflect_Constructor_ = NULL;
+
+ CHECK(java_lang_reflect_Method_ != NULL);
+ java_lang_reflect_Method_ = NULL;
+}
+
+ObjectArray<String>* AbstractMethod::GetDexCacheStrings() const {
+ return GetFieldObject<ObjectArray<String>*>(
+ OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_strings_), false);
+}
+
+void AbstractMethod::SetDexCacheStrings(ObjectArray<String>* new_dex_cache_strings) {
+ SetFieldObject(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_strings_),
+ new_dex_cache_strings, false);
+}
+
+ObjectArray<AbstractMethod>* AbstractMethod::GetDexCacheResolvedMethods() const {
+ return GetFieldObject<ObjectArray<AbstractMethod>*>(
+ OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_resolved_methods_), false);
+}
+
+void AbstractMethod::SetDexCacheResolvedMethods(ObjectArray<AbstractMethod>* new_dex_cache_methods) {
+ SetFieldObject(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_resolved_methods_),
+ new_dex_cache_methods, false);
+}
+
+ObjectArray<Class>* AbstractMethod::GetDexCacheResolvedTypes() const {
+ return GetFieldObject<ObjectArray<Class>*>(
+ OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_resolved_types_), false);
+}
+
+void AbstractMethod::SetDexCacheResolvedTypes(ObjectArray<Class>* new_dex_cache_classes) {
+ SetFieldObject(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_resolved_types_),
+ new_dex_cache_classes, false);
+}
+
+ObjectArray<StaticStorageBase>* AbstractMethod::GetDexCacheInitializedStaticStorage() const {
+ return GetFieldObject<ObjectArray<StaticStorageBase>*>(
+ OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_initialized_static_storage_),
+ false);
+}
+
+void AbstractMethod::SetDexCacheInitializedStaticStorage(ObjectArray<StaticStorageBase>* new_value) {
+ SetFieldObject(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_initialized_static_storage_),
+ new_value, false);
+}
+
+size_t AbstractMethod::NumArgRegisters(const StringPiece& shorty) {
+ CHECK_LE(1, shorty.length());
+ uint32_t num_registers = 0;
+ for (int i = 1; i < shorty.length(); ++i) {
+ char ch = shorty[i];
+ if (ch == 'D' || ch == 'J') {
+ num_registers += 2;
+ } else {
+ num_registers += 1;
+ }
+ }
+ return num_registers;
+}
+
+bool AbstractMethod::IsProxyMethod() const {
+ return GetDeclaringClass()->IsProxyClass();
+}
+
+AbstractMethod* AbstractMethod::FindOverriddenMethod() const {
+ if (IsStatic()) {
+ return NULL;
+ }
+ Class* declaring_class = GetDeclaringClass();
+ Class* super_class = declaring_class->GetSuperClass();
+ uint16_t method_index = GetMethodIndex();
+ ObjectArray<AbstractMethod>* super_class_vtable = super_class->GetVTable();
+ AbstractMethod* result = NULL;
+ // Did this method override a super class method? If so load the result from the super class'
+ // vtable
+ if (super_class_vtable != NULL && method_index < super_class_vtable->GetLength()) {
+ result = super_class_vtable->Get(method_index);
+ } else {
+ // Method didn't override superclass method so search interfaces
+ if (IsProxyMethod()) {
+ result = GetDexCacheResolvedMethods()->Get(GetDexMethodIndex());
+ CHECK_EQ(result,
+ Runtime::Current()->GetClassLinker()->FindMethodForProxy(GetDeclaringClass(), this));
+ } else {
+ MethodHelper mh(this);
+ MethodHelper interface_mh;
+ IfTable* iftable = GetDeclaringClass()->GetIfTable();
+ for (size_t i = 0; i < iftable->Count() && result == NULL; i++) {
+ Class* interface = iftable->GetInterface(i);
+ for (size_t j = 0; j < interface->NumVirtualMethods(); ++j) {
+ AbstractMethod* interface_method = interface->GetVirtualMethod(j);
+ interface_mh.ChangeMethod(interface_method);
+ if (mh.HasSameNameAndSignature(&interface_mh)) {
+ result = interface_method;
+ break;
+ }
+ }
+ }
+ }
+ }
+#ifndef NDEBUG
+ MethodHelper result_mh(result);
+ DCHECK(result == NULL || MethodHelper(this).HasSameNameAndSignature(&result_mh));
+#endif
+ return result;
+}
+
+static const void* GetOatCode(const AbstractMethod* m)
+ SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+ Runtime* runtime = Runtime::Current();
+ const void* code = m->GetCode();
+ // Peel off any method tracing trampoline.
+ if (runtime->IsMethodTracingActive() && runtime->GetInstrumentation()->GetSavedCodeFromMap(m) != NULL) {
+ code = runtime->GetInstrumentation()->GetSavedCodeFromMap(m);
+ }
+ // Peel off any resolution stub.
+ if (code == runtime->GetResolutionStubArray(Runtime::kStaticMethod)->GetData()) {
+ code = runtime->GetClassLinker()->GetOatCodeFor(m);
+ }
+ return code;
+}
+
+uintptr_t AbstractMethod::NativePcOffset(const uintptr_t pc) const {
+ return pc - reinterpret_cast<uintptr_t>(GetOatCode(this));
+}
+
+// Find the lowest-address native safepoint pc for a given dex pc
+uintptr_t AbstractMethod::ToFirstNativeSafepointPc(const uint32_t dex_pc) const {
+#if !defined(ART_USE_LLVM_COMPILER)
+ const uint32_t* mapping_table = GetPcToDexMappingTable();
+ if (mapping_table == NULL) {
+ DCHECK(IsNative() || IsCalleeSaveMethod() || IsProxyMethod()) << PrettyMethod(this);
+ return DexFile::kDexNoIndex; // Special no mapping case
+ }
+ size_t mapping_table_length = GetPcToDexMappingTableLength();
+ for (size_t i = 0; i < mapping_table_length; i += 2) {
+ if (mapping_table[i + 1] == dex_pc) {
+ return mapping_table[i] + reinterpret_cast<uintptr_t>(GetOatCode(this));
+ }
+ }
+ LOG(FATAL) << "Failed to find native offset for dex pc 0x" << std::hex << dex_pc
+ << " in " << PrettyMethod(this);
+ return 0;
+#else
+ // Compiler LLVM doesn't use the machine pc, we just use dex pc instead.
+ return static_cast<uint32_t>(dex_pc);
+#endif
+}
+
+uint32_t AbstractMethod::ToDexPc(const uintptr_t pc) const {
+#if !defined(ART_USE_LLVM_COMPILER)
+ const uint32_t* mapping_table = GetPcToDexMappingTable();
+ if (mapping_table == NULL) {
+ DCHECK(IsNative() || IsCalleeSaveMethod() || IsProxyMethod()) << PrettyMethod(this);
+ return DexFile::kDexNoIndex; // Special no mapping case
+ }
+ size_t mapping_table_length = GetPcToDexMappingTableLength();
+ uint32_t sought_offset = pc - reinterpret_cast<uintptr_t>(GetOatCode(this));
+ for (size_t i = 0; i < mapping_table_length; i += 2) {
+ if (mapping_table[i] == sought_offset) {
+ return mapping_table[i + 1];
+ }
+ }
+ LOG(ERROR) << "Failed to find Dex offset for PC offset " << reinterpret_cast<void*>(sought_offset)
+ << "(PC " << reinterpret_cast<void*>(pc) << ") in " << PrettyMethod(this);
+ return DexFile::kDexNoIndex;
+#else
+ // Compiler LLVM doesn't use the machine pc, we just use dex pc instead.
+ return static_cast<uint32_t>(pc);
+#endif
+}
+
+uintptr_t AbstractMethod::ToNativePc(const uint32_t dex_pc) const {
+ const uint32_t* mapping_table = GetDexToPcMappingTable();
+ if (mapping_table == NULL) {
+ DCHECK_EQ(dex_pc, 0U);
+ return 0; // Special no mapping/pc == 0 case
+ }
+ size_t mapping_table_length = GetDexToPcMappingTableLength();
+ for (size_t i = 0; i < mapping_table_length; i += 2) {
+ uint32_t map_offset = mapping_table[i];
+ uint32_t map_dex_offset = mapping_table[i + 1];
+ if (map_dex_offset == dex_pc) {
+ return reinterpret_cast<uintptr_t>(GetOatCode(this)) + map_offset;
+ }
+ }
+ LOG(FATAL) << "Looking up Dex PC not contained in method, 0x" << std::hex << dex_pc
+ << " in " << PrettyMethod(this);
+ return 0;
+}
+
+uint32_t AbstractMethod::FindCatchBlock(Class* exception_type, uint32_t dex_pc) const {
+ MethodHelper mh(this);
+ const DexFile::CodeItem* code_item = mh.GetCodeItem();
+ // Iterate over the catch handlers associated with dex_pc
+ for (CatchHandlerIterator it(*code_item, dex_pc); it.HasNext(); it.Next()) {
+ uint16_t iter_type_idx = it.GetHandlerTypeIndex();
+ // Catch all case
+ if (iter_type_idx == DexFile::kDexNoIndex16) {
+ return it.GetHandlerAddress();
+ }
+ // Does this catch exception type apply?
+ Class* iter_exception_type = mh.GetDexCacheResolvedType(iter_type_idx);
+ if (iter_exception_type == NULL) {
+ // The verifier should take care of resolving all exception classes early
+ LOG(WARNING) << "Unresolved exception class when finding catch block: "
+ << mh.GetTypeDescriptorFromTypeIdx(iter_type_idx);
+ } else if (iter_exception_type->IsAssignableFrom(exception_type)) {
+ return it.GetHandlerAddress();
+ }
+ }
+ // Handler not found
+ return DexFile::kDexNoIndex;
+}
+
+void AbstractMethod::Invoke(Thread* self, Object* receiver, JValue* args, JValue* result) {
+ if (kIsDebugBuild) {
+ self->AssertThreadSuspensionIsAllowable();
+ CHECK_EQ(kRunnable, self->GetState());
+ }
+
+ // Push a transition back into managed code onto the linked list in thread.
+ ManagedStack fragment;
+ self->PushManagedStackFragment(&fragment);
+
+ // Call the invoke stub associated with the method.
+ // Pass everything as arguments.
+ AbstractMethod::InvokeStub* stub = GetInvokeStub();
+
+ if (UNLIKELY(!Runtime::Current()->IsStarted())){
+ LOG(INFO) << "Not invoking " << PrettyMethod(this) << " for a runtime that isn't started";
+ if (result != NULL) {
+ result->SetJ(0);
+ }
+ } else {
+ bool interpret = self->ReadFlag(kEnterInterpreter) && !IsNative() && !IsProxyMethod();
+ const bool kLogInvocationStartAndReturn = false;
+ if (!interpret && GetCode() != NULL && stub != NULL) {
+ if (kLogInvocationStartAndReturn) {
+ LOG(INFO) << StringPrintf("Invoking '%s' code=%p stub=%p",
+ PrettyMethod(this).c_str(), GetCode(), stub);
+ }
+ (*stub)(this, receiver, self, args, result);
+ if (kLogInvocationStartAndReturn) {
+ LOG(INFO) << StringPrintf("Returned '%s' code=%p stub=%p",
+ PrettyMethod(this).c_str(), GetCode(), stub);
+ }
+ } else {
+ const bool kInterpretMethodsWithNoCode = false;
+ if (interpret || kInterpretMethodsWithNoCode) {
+ if (kLogInvocationStartAndReturn) {
+ LOG(INFO) << "Interpreting " << PrettyMethod(this) << "'";
+ }
+ art::interpreter::EnterInterpreterFromInvoke(self, this, receiver, args, result);
+ if (kLogInvocationStartAndReturn) {
+ LOG(INFO) << "Returned '" << PrettyMethod(this) << "'";
+ }
+ } else {
+ LOG(INFO) << "Not invoking '" << PrettyMethod(this)
+ << "' code=" << reinterpret_cast<const void*>(GetCode())
+ << " stub=" << reinterpret_cast<void*>(stub);
+ if (result != NULL) {
+ result->SetJ(0);
+ }
+ }
+ }
+ }
+
+ // Pop transition.
+ self->PopManagedStackFragment(fragment);
+}
+
+bool AbstractMethod::IsRegistered() const {
+ void* native_method = GetFieldPtr<void*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, native_method_), false);
+ CHECK(native_method != NULL);
+ void* jni_stub = Runtime::Current()->GetJniDlsymLookupStub()->GetData();
+ return native_method != jni_stub;
+}
+
+void AbstractMethod::RegisterNative(Thread* self, const void* native_method) {
+ DCHECK(Thread::Current() == self);
+ CHECK(IsNative()) << PrettyMethod(this);
+ CHECK(native_method != NULL) << PrettyMethod(this);
+ if (!self->GetJniEnv()->vm->work_around_app_jni_bugs) {
+ SetNativeMethod(native_method);
+ } else {
+ // We've been asked to associate this method with the given native method but are working
+ // around JNI bugs, that include not giving Object** SIRT references to native methods. Direct
+ // the native method to runtime support and store the target somewhere runtime support will
+ // find it.
+#if defined(__arm__) && !defined(ART_USE_LLVM_COMPILER)
+ SetNativeMethod(native_method);
+#else
+ UNIMPLEMENTED(FATAL);
+#endif
+ SetFieldPtr<const uint8_t*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, native_gc_map_),
+ reinterpret_cast<const uint8_t*>(native_method), false);
+ }
+}
+
+void AbstractMethod::UnregisterNative(Thread* self) {
+ CHECK(IsNative()) << PrettyMethod(this);
+ // restore stub to lookup native pointer via dlsym
+ RegisterNative(self, Runtime::Current()->GetJniDlsymLookupStub()->GetData());
+}
+
+void AbstractMethod::SetNativeMethod(const void* native_method) {
+ SetFieldPtr<const void*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, native_method_),
+ native_method, false);
+}
+
+} // namespace mirror
+} // namespace art