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Diffstat (limited to 'src/object.h')
| -rw-r--r-- | src/object.h | 2748 |
1 files changed, 0 insertions, 2748 deletions
diff --git a/src/object.h b/src/object.h deleted file mode 100644 index f02e312dd6..0000000000 --- a/src/object.h +++ /dev/null @@ -1,2748 +0,0 @@ -/* - * 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. - */ - -#ifndef ART_SRC_OBJECT_H_ -#define ART_SRC_OBJECT_H_ - -#include <iosfwd> -#include <vector> - -#include "atomic.h" -#include "base/casts.h" -#include "base/logging.h" -#include "base/macros.h" -#include "base/stringpiece.h" -#include "globals.h" -#include "heap.h" -#include "invoke_type.h" -#include "modifiers.h" -#include "offsets.h" -#include "primitive.h" -#include "runtime.h" -#include "thread.h" -#include "UniquePtr.h" -#include "utf.h" - -namespace art { - -class Array; -class Class; -class ClassLoader; -class CodeAndDirectMethods; -class DexCache; -class Field; -class IfTable; -class Monitor; -class Member; -class AbstractMethod; -class Object; -class StaticStorageBase; -class String; -template<class T> class ObjectArray; -template<class T> class PrimitiveArray; -typedef PrimitiveArray<uint8_t> BooleanArray; -typedef PrimitiveArray<int8_t> ByteArray; -typedef PrimitiveArray<uint16_t> CharArray; -typedef PrimitiveArray<double> DoubleArray; -typedef PrimitiveArray<float> FloatArray; -typedef PrimitiveArray<int32_t> IntArray; -typedef PrimitiveArray<int64_t> LongArray; -typedef PrimitiveArray<int16_t> ShortArray; -union JValue; - -#if defined(ART_USE_LLVM_COMPILER) -namespace compiler_llvm { - class InferredRegCategoryMap; -} // namespace compiler_llvm -#endif - -/* - * Definitions for packing refOffsets in Class. - */ -/* - * A magic value for refOffsets. Ignore the bits and walk the super - * chain when this is the value. - * [This is an unlikely "natural" value, since it would be 30 non-ref instance - * fields followed by 2 ref instance fields.] - */ -#define CLASS_WALK_SUPER ((unsigned int)(3)) -#define CLASS_BITS_PER_WORD (sizeof(unsigned long int) * 8) -#define CLASS_OFFSET_ALIGNMENT 4 -#define CLASS_HIGH_BIT ((unsigned int)1 << (CLASS_BITS_PER_WORD - 1)) -/* - * Given an offset, return the bit number which would encode that offset. - * Local use only. - */ -#define _CLASS_BIT_NUMBER_FROM_OFFSET(byteOffset) \ - ((unsigned int)(byteOffset) / \ - CLASS_OFFSET_ALIGNMENT) -/* - * Is the given offset too large to be encoded? - */ -#define CLASS_CAN_ENCODE_OFFSET(byteOffset) \ - (_CLASS_BIT_NUMBER_FROM_OFFSET(byteOffset) < CLASS_BITS_PER_WORD) -/* - * Return a single bit, encoding the offset. - * Undefined if the offset is too large, as defined above. - */ -#define CLASS_BIT_FROM_OFFSET(byteOffset) \ - (CLASS_HIGH_BIT >> _CLASS_BIT_NUMBER_FROM_OFFSET(byteOffset)) -/* - * Return an offset, given a bit number as returned from CLZ. - */ -#define CLASS_OFFSET_FROM_CLZ(rshift) \ - MemberOffset((static_cast<int>(rshift) * CLASS_OFFSET_ALIGNMENT)) - -#define OFFSET_OF_OBJECT_MEMBER(type, field) \ - MemberOffset(OFFSETOF_MEMBER(type, field)) - -// Classes shared with the managed side of the world need to be packed -// so that they don't have extra platform specific padding. -#define MANAGED PACKED(4) - -// C++ mirror of java.lang.Object -class MANAGED Object { - public: - static MemberOffset ClassOffset() { - return OFFSET_OF_OBJECT_MEMBER(Object, klass_); - } - - Class* GetClass() const { - return GetFieldObject<Class*>(OFFSET_OF_OBJECT_MEMBER(Object, klass_), false); - } - - void SetClass(Class* new_klass); - - bool InstanceOf(const Class* klass) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - size_t SizeOf() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - Object* Clone(Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - int32_t IdentityHashCode() const { - #ifdef MOVING_GARBAGE_COLLECTOR - // TODO: we'll need to use the Object's internal concept of identity - UNIMPLEMENTED(FATAL); - #endif - return reinterpret_cast<int32_t>(this); - } - - static MemberOffset MonitorOffset() { - return OFFSET_OF_OBJECT_MEMBER(Object, monitor_); - } - - volatile int32_t* GetRawLockWordAddress() { - byte* raw_addr = reinterpret_cast<byte*>(this) + - OFFSET_OF_OBJECT_MEMBER(Object, monitor_).Int32Value(); - int32_t* word_addr = reinterpret_cast<int32_t*>(raw_addr); - return const_cast<volatile int32_t*>(word_addr); - } - - uint32_t GetThinLockId(); - - void MonitorEnter(Thread* thread) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) - EXCLUSIVE_LOCK_FUNCTION(monitor_lock_); - - bool MonitorExit(Thread* thread) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) - UNLOCK_FUNCTION(monitor_lock_); - - void Notify() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - void NotifyAll() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - void Wait() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - void Wait(int64_t timeout) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - void Wait(int64_t timeout, int32_t nanos) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - bool IsClass() const; - - Class* AsClass() { - DCHECK(IsClass()); - return down_cast<Class*>(this); - } - - const Class* AsClass() const { - DCHECK(IsClass()); - return down_cast<const Class*>(this); - } - - bool IsObjectArray() const; - - template<class T> - ObjectArray<T>* AsObjectArray(); - - template<class T> - const ObjectArray<T>* AsObjectArray() const; - - bool IsArrayInstance() const; - - Array* AsArray() { - DCHECK(IsArrayInstance()); - return down_cast<Array*>(this); - } - - const Array* AsArray() const { - DCHECK(IsArrayInstance()); - return down_cast<const Array*>(this); - } - - BooleanArray* AsBooleanArray(); - ByteArray* AsByteArray(); - CharArray* AsCharArray(); - ShortArray* AsShortArray(); - IntArray* AsIntArray(); - LongArray* AsLongArray(); - - String* AsString(); - - Throwable* AsThrowable() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - bool IsMethod() const; - - AbstractMethod* AsMethod() { - DCHECK(IsMethod()); - return down_cast<AbstractMethod*>(this); - } - - const AbstractMethod* AsMethod() const { - DCHECK(IsMethod()); - return down_cast<const AbstractMethod*>(this); - } - - bool IsField() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - Field* AsField() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(IsField()); - return down_cast<Field*>(this); - } - - const Field* AsField() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(IsField()); - return down_cast<const Field*>(this); - } - - bool IsReferenceInstance() const; - - bool IsWeakReferenceInstance() const; - - bool IsSoftReferenceInstance() const; - - bool IsFinalizerReferenceInstance() const; - - bool IsPhantomReferenceInstance() const; - - // Accessors for Java type fields - template<class T> - T GetFieldObject(MemberOffset field_offset, bool is_volatile) const { - T result = reinterpret_cast<T>(GetField32(field_offset, is_volatile)); - Runtime::Current()->GetHeap()->VerifyObject(result); - return result; - } - - void SetFieldObject(MemberOffset field_offset, const Object* new_value, bool is_volatile, - bool this_is_valid = true) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - Runtime::Current()->GetHeap()->VerifyObject(new_value); - SetField32(field_offset, reinterpret_cast<uint32_t>(new_value), is_volatile, this_is_valid); - if (new_value != NULL) { - CheckFieldAssignment(field_offset, new_value); - Runtime::Current()->GetHeap()->WriteBarrierField(this, field_offset, new_value); - } - } - - uint32_t GetField32(MemberOffset field_offset, bool is_volatile) const { - Runtime::Current()->GetHeap()->VerifyObject(this); - const byte* raw_addr = reinterpret_cast<const byte*>(this) + field_offset.Int32Value(); - const int32_t* word_addr = reinterpret_cast<const int32_t*>(raw_addr); - if (UNLIKELY(is_volatile)) { - return android_atomic_acquire_load(word_addr); - } else { - return *word_addr; - } - } - - void SetField32(MemberOffset field_offset, uint32_t new_value, bool is_volatile, bool this_is_valid = true) { - if (this_is_valid) { - Runtime::Current()->GetHeap()->VerifyObject(this); - } - byte* raw_addr = reinterpret_cast<byte*>(this) + field_offset.Int32Value(); - uint32_t* word_addr = reinterpret_cast<uint32_t*>(raw_addr); - if (UNLIKELY(is_volatile)) { - /* - * TODO: add an android_atomic_synchronization_store() function and - * use it in the 32-bit volatile set handlers. On some platforms we - * can use a fast atomic instruction and avoid the barriers. - */ - ANDROID_MEMBAR_STORE(); - *word_addr = new_value; - ANDROID_MEMBAR_FULL(); - } else { - *word_addr = new_value; - } - } - - uint64_t GetField64(MemberOffset field_offset, bool is_volatile) const { - Runtime::Current()->GetHeap()->VerifyObject(this); - const byte* raw_addr = reinterpret_cast<const byte*>(this) + field_offset.Int32Value(); - const int64_t* addr = reinterpret_cast<const int64_t*>(raw_addr); - if (UNLIKELY(is_volatile)) { - uint64_t result = QuasiAtomic::Read64(addr); - ANDROID_MEMBAR_FULL(); - return result; - } else { - return *addr; - } - } - - void SetField64(MemberOffset field_offset, uint64_t new_value, bool is_volatile) { - Runtime::Current()->GetHeap()->VerifyObject(this); - byte* raw_addr = reinterpret_cast<byte*>(this) + field_offset.Int32Value(); - int64_t* addr = reinterpret_cast<int64_t*>(raw_addr); - if (UNLIKELY(is_volatile)) { - ANDROID_MEMBAR_STORE(); - QuasiAtomic::Write64(addr, new_value); - // Post-store barrier not required due to use of atomic op or mutex. - } else { - *addr = new_value; - } - } - - protected: - // Accessors for non-Java type fields - template<class T> - T GetFieldPtr(MemberOffset field_offset, bool is_volatile) const { - return reinterpret_cast<T>(GetField32(field_offset, is_volatile)); - } - - template<typename T> - void SetFieldPtr(MemberOffset field_offset, T new_value, bool is_volatile, bool this_is_valid = true) { - SetField32(field_offset, reinterpret_cast<uint32_t>(new_value), is_volatile, this_is_valid); - } - - private: -#if VERIFY_OBJECT_ENABLED - void CheckFieldAssignment(MemberOffset field_offset, const Object* new_value) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); -#else - void CheckFieldAssignment(MemberOffset, const Object*) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {} -#endif - - Class* klass_; - - uint32_t monitor_; - - friend class ImageWriter; // for abusing monitor_ directly - friend struct ObjectOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(Object); -}; - -// C++ mirror of java.lang.reflect.Field -class MANAGED Field : public Object { - public: - Class* GetDeclaringClass() const; - - void SetDeclaringClass(Class *new_declaring_class) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - uint32_t GetAccessFlags() const; - - void SetAccessFlags(uint32_t new_access_flags) { - SetField32(OFFSET_OF_OBJECT_MEMBER(Field, access_flags_), new_access_flags, false); - } - - bool IsPublic() const { - return (GetAccessFlags() & kAccPublic) != 0; - } - - bool IsStatic() const { - return (GetAccessFlags() & kAccStatic) != 0; - } - - bool IsFinal() const { - return (GetAccessFlags() & kAccFinal) != 0; - } - - uint32_t GetDexFieldIndex() const { - return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, field_dex_idx_), false); - } - - void SetDexFieldIndex(uint32_t new_idx) { - SetField32(OFFSET_OF_OBJECT_MEMBER(Field, field_dex_idx_), new_idx, false); - } - - // Offset to field within an Object - MemberOffset GetOffset() const; - - static MemberOffset OffsetOffset() { - return MemberOffset(OFFSETOF_MEMBER(Field, offset_)); - } - - MemberOffset GetOffsetDuringLinking() const; - - void SetOffset(MemberOffset num_bytes); - - // field access, null object for static fields - bool GetBoolean(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void SetBoolean(Object* object, bool z) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - int8_t GetByte(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void SetByte(Object* object, int8_t b) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - uint16_t GetChar(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void SetChar(Object* object, uint16_t c) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - int16_t GetShort(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void SetShort(Object* object, int16_t s) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - int32_t GetInt(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void SetInt(Object* object, int32_t i) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - int64_t GetLong(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void SetLong(Object* object, int64_t j) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - float GetFloat(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void SetFloat(Object* object, float f) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - double GetDouble(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void SetDouble(Object* object, double d) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - Object* GetObject(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void SetObject(Object* object, const Object* l) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // raw field accesses - uint32_t Get32(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void Set32(Object* object, uint32_t new_value) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - uint64_t Get64(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void Set64(Object* object, uint64_t new_value) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - Object* GetObj(const Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - void SetObj(Object* object, const Object* new_value) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static Class* GetJavaLangReflectField() { - DCHECK(java_lang_reflect_Field_ != NULL); - return java_lang_reflect_Field_; - } - - static void SetClass(Class* java_lang_reflect_Field); - static void ResetClass(); - - bool IsVolatile() const { - return (GetAccessFlags() & kAccVolatile) != 0; - } - - private: - // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". - // The class we are a part of - Class* declaring_class_; - - uint32_t access_flags_; - - // Dex cache index of field id - uint32_t field_dex_idx_; - - // Offset of field within an instance or in the Class' static fields - uint32_t offset_; - - static Class* java_lang_reflect_Field_; - - friend struct FieldOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(Field); -}; - -// C++ mirror of java.lang.reflect.Method and java.lang.reflect.Constructor -class MANAGED AbstractMethod : public Object { - public: - // A function that invokes a method with an array of its arguments. - typedef void InvokeStub(const AbstractMethod* method, - Object* obj, - Thread* thread, - JValue* args, - JValue* result); - - Class* GetDeclaringClass() const; - - void SetDeclaringClass(Class *new_declaring_class) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static MemberOffset DeclaringClassOffset() { - return MemberOffset(OFFSETOF_MEMBER(AbstractMethod, declaring_class_)); - } - - uint32_t GetAccessFlags() const; - - void SetAccessFlags(uint32_t new_access_flags) { - SetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, access_flags_), new_access_flags, false); - } - - // Approximate what kind of method call would be used for this method. - InvokeType GetInvokeType() const; - - // Returns true if the method is declared public. - bool IsPublic() const { - return (GetAccessFlags() & kAccPublic) != 0; - } - - // Returns true if the method is declared private. - bool IsPrivate() const { - return (GetAccessFlags() & kAccPrivate) != 0; - } - - // Returns true if the method is declared static. - bool IsStatic() const { - return (GetAccessFlags() & kAccStatic) != 0; - } - - // Returns true if the method is a constructor. - bool IsConstructor() const { - return (GetAccessFlags() & kAccConstructor) != 0; - } - - // Returns true if the method is static, private, or a constructor. - bool IsDirect() const { - return IsDirect(GetAccessFlags()); - } - - static bool IsDirect(uint32_t access_flags) { - return (access_flags & (kAccStatic | kAccPrivate | kAccConstructor)) != 0; - } - - // Returns true if the method is declared synchronized. - bool IsSynchronized() const { - uint32_t synchonized = kAccSynchronized | kAccDeclaredSynchronized; - return (GetAccessFlags() & synchonized) != 0; - } - - bool IsFinal() const { - return (GetAccessFlags() & kAccFinal) != 0; - } - - bool IsMiranda() const { - return (GetAccessFlags() & kAccMiranda) != 0; - } - - bool IsNative() const { - return (GetAccessFlags() & kAccNative) != 0; - } - - bool IsAbstract() const { - return (GetAccessFlags() & kAccAbstract) != 0; - } - - bool IsSynthetic() const { - return (GetAccessFlags() & kAccSynthetic) != 0; - } - - bool IsProxyMethod() const; - - bool CheckIncompatibleClassChange(InvokeType type); - - uint16_t GetMethodIndex() const; - - size_t GetVtableIndex() const { - return GetMethodIndex(); - } - - void SetMethodIndex(uint16_t new_method_index) { - SetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, method_index_), new_method_index, false); - } - - static MemberOffset MethodIndexOffset() { - return OFFSET_OF_OBJECT_MEMBER(AbstractMethod, method_index_); - } - - uint32_t GetCodeItemOffset() const { - return GetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, code_item_offset_), false); - } - - void SetCodeItemOffset(uint32_t new_code_off) { - SetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, code_item_offset_), new_code_off, false); - } - - // Number of 32bit registers that would be required to hold all the arguments - static size_t NumArgRegisters(const StringPiece& shorty); - - uint32_t GetDexMethodIndex() const; - - void SetDexMethodIndex(uint32_t new_idx) { - SetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, method_dex_index_), new_idx, false); - } - - ObjectArray<String>* GetDexCacheStrings() const; - void SetDexCacheStrings(ObjectArray<String>* new_dex_cache_strings) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static MemberOffset DexCacheStringsOffset() { - return OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_strings_); - } - - static MemberOffset DexCacheResolvedMethodsOffset() { - return OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_resolved_methods_); - } - - static MemberOffset DexCacheResolvedTypesOffset() { - return OFFSET_OF_OBJECT_MEMBER(AbstractMethod, dex_cache_resolved_types_); - } - - static MemberOffset DexCacheInitializedStaticStorageOffset() { - return OFFSET_OF_OBJECT_MEMBER(AbstractMethod, - dex_cache_initialized_static_storage_); - } - - ObjectArray<AbstractMethod>* GetDexCacheResolvedMethods() const; - void SetDexCacheResolvedMethods(ObjectArray<AbstractMethod>* new_dex_cache_methods) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - ObjectArray<Class>* GetDexCacheResolvedTypes() const; - void SetDexCacheResolvedTypes(ObjectArray<Class>* new_dex_cache_types) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - ObjectArray<StaticStorageBase>* GetDexCacheInitializedStaticStorage() const; - void SetDexCacheInitializedStaticStorage(ObjectArray<StaticStorageBase>* new_value) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Find the method that this method overrides - AbstractMethod* FindOverriddenMethod() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - void Invoke(Thread* self, Object* receiver, JValue* args, JValue* result) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - const void* GetCode() const { - return GetFieldPtr<const void*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, code_), false); - } - - void SetCode(const void* code) { - SetFieldPtr<const void*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, code_), code, false); - } - - uint32_t GetCodeSize() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(!IsRuntimeMethod() && !IsProxyMethod()) << PrettyMethod(this); - uintptr_t code = reinterpret_cast<uintptr_t>(GetCode()); - if (code == 0) { - return 0; - } - // TODO: make this Thumb2 specific - code &= ~0x1; - return reinterpret_cast<uint32_t*>(code)[-1]; - } - - bool IsWithinCode(uintptr_t pc) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - uintptr_t code = reinterpret_cast<uintptr_t>(GetCode()); - if (code == 0) { - return pc == 0; - } - /* - * During a stack walk, a return PC may point to the end of the code + 1 - * (in the case that the last instruction is a call that isn't expected to - * return. Thus, we check <= code + GetCodeSize(). - */ - return (code <= pc && pc <= code + GetCodeSize()); - } - - void AssertPcIsWithinCode(uintptr_t pc) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - uint32_t GetOatCodeOffset() const { - DCHECK(!Runtime::Current()->IsStarted()); - return reinterpret_cast<uint32_t>(GetCode()); - } - - void SetOatCodeOffset(uint32_t code_offset) { - DCHECK(!Runtime::Current()->IsStarted()); - SetCode(reinterpret_cast<void*>(code_offset)); - } - - static MemberOffset GetCodeOffset() { - return OFFSET_OF_OBJECT_MEMBER(AbstractMethod, code_); - } - - const uint32_t* GetMappingTable() const { - const uint32_t* map = GetMappingTableRaw(); - if (map == NULL) { - return map; - } - return map + 1; - } - - uint32_t GetPcToDexMappingTableLength() const { - const uint32_t* map = GetMappingTableRaw(); - if (map == NULL) { - return 0; - } - return map[2]; - } - - const uint32_t* GetPcToDexMappingTable() const { - const uint32_t* map = GetMappingTableRaw(); - if (map == NULL) { - return map; - } - return map + 3; - } - - - uint32_t GetDexToPcMappingTableLength() const { - const uint32_t* map = GetMappingTableRaw(); - if (map == NULL) { - return 0; - } - return map[1] - map[2]; - } - - const uint32_t* GetDexToPcMappingTable() const { - const uint32_t* map = GetMappingTableRaw(); - if (map == NULL) { - return map; - } - return map + 3 + map[2]; - } - - - const uint32_t* GetMappingTableRaw() const { - return GetFieldPtr<const uint32_t*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, mapping_table_), false); - } - - void SetMappingTable(const uint32_t* mapping_table) { - SetFieldPtr<const uint32_t*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, mapping_table_), - mapping_table, false); - } - - uint32_t GetOatMappingTableOffset() const { - DCHECK(!Runtime::Current()->IsStarted()); - return reinterpret_cast<uint32_t>(GetMappingTableRaw()); - } - - void SetOatMappingTableOffset(uint32_t mapping_table_offset) { - DCHECK(!Runtime::Current()->IsStarted()); - SetMappingTable(reinterpret_cast<const uint32_t*>(mapping_table_offset)); - } - - // Callers should wrap the uint16_t* in a VmapTable instance for convenient access. - const uint16_t* GetVmapTableRaw() const { - return GetFieldPtr<const uint16_t*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, vmap_table_), false); - } - - void SetVmapTable(const uint16_t* vmap_table) { - SetFieldPtr<const uint16_t*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, vmap_table_), vmap_table, false); - } - - uint32_t GetOatVmapTableOffset() const { - DCHECK(!Runtime::Current()->IsStarted()); - return reinterpret_cast<uint32_t>(GetVmapTableRaw()); - } - - void SetOatVmapTableOffset(uint32_t vmap_table_offset) { - DCHECK(!Runtime::Current()->IsStarted()); - SetVmapTable(reinterpret_cast<uint16_t*>(vmap_table_offset)); - } - - const uint8_t* GetNativeGcMap() const { - return GetFieldPtr<uint8_t*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, native_gc_map_), false); - } - void SetNativeGcMap(const uint8_t* data) { - SetFieldPtr<const uint8_t*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, native_gc_map_), data, - false); - } - - // When building the oat need a convenient place to stuff the offset of the native GC map. - void SetOatNativeGcMapOffset(uint32_t gc_map_offset) { - DCHECK(!Runtime::Current()->IsStarted()); - SetNativeGcMap(reinterpret_cast<uint8_t*>(gc_map_offset)); - } - - uint32_t GetOatNativeGcMapOffset() const { - DCHECK(!Runtime::Current()->IsStarted()); - return reinterpret_cast<uint32_t>(GetNativeGcMap()); - } - - size_t GetFrameSizeInBytes() const { - DCHECK_EQ(sizeof(size_t), sizeof(uint32_t)); - size_t result = GetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, frame_size_in_bytes_), false); - DCHECK_LE(static_cast<size_t>(kStackAlignment), result); - return result; - } - - void SetFrameSizeInBytes(size_t new_frame_size_in_bytes) { - DCHECK_EQ(sizeof(size_t), sizeof(uint32_t)); - SetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, frame_size_in_bytes_), - new_frame_size_in_bytes, false); - } - - size_t GetReturnPcOffsetInBytes() const { - return GetFrameSizeInBytes() - kPointerSize; - } - - bool IsRegistered() const; - - void RegisterNative(Thread* self, const void* native_method) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - void UnregisterNative(Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static MemberOffset NativeMethodOffset() { - return OFFSET_OF_OBJECT_MEMBER(AbstractMethod, native_method_); - } - - const void* GetNativeMethod() const { - return reinterpret_cast<const void*>(GetField32(NativeMethodOffset(), false)); - } - - // Native to managed invocation stub entry point - InvokeStub* GetInvokeStub() const { - InvokeStub* result = GetFieldPtr<InvokeStub*>( - OFFSET_OF_OBJECT_MEMBER(AbstractMethod, invoke_stub_), false); - // TODO: DCHECK(result != NULL); should be ahead of time compiled - return result; - } - - void SetInvokeStub(InvokeStub* invoke_stub) { - SetFieldPtr<InvokeStub*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, invoke_stub_), - invoke_stub, false); - } - - uint32_t GetInvokeStubSize() const { - uintptr_t invoke_stub = reinterpret_cast<uintptr_t>(GetInvokeStub()); - if (invoke_stub == 0) { - return 0; - } - // TODO: make this Thumb2 specific - invoke_stub &= ~0x1; - return reinterpret_cast<const uint32_t*>(invoke_stub)[-1]; - } - - uint32_t GetOatInvokeStubOffset() const { - DCHECK(!Runtime::Current()->IsStarted()); - return reinterpret_cast<uint32_t>(GetInvokeStub()); - } - - void SetOatInvokeStubOffset(uint32_t invoke_stub_offset) { - DCHECK(!Runtime::Current()->IsStarted()); - SetInvokeStub(reinterpret_cast<InvokeStub*>(invoke_stub_offset)); - } - - static MemberOffset GetInvokeStubOffset() { - return OFFSET_OF_OBJECT_MEMBER(AbstractMethod, invoke_stub_); - } - - static MemberOffset GetMethodIndexOffset() { - return OFFSET_OF_OBJECT_MEMBER(AbstractMethod, method_index_); - } - - uint32_t GetCoreSpillMask() const { - return GetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, core_spill_mask_), false); - } - - void SetCoreSpillMask(uint32_t core_spill_mask) { - // Computed during compilation - SetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, core_spill_mask_), core_spill_mask, false); - } - - uint32_t GetFpSpillMask() const { - return GetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, fp_spill_mask_), false); - } - - void SetFpSpillMask(uint32_t fp_spill_mask) { - // Computed during compilation - SetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, fp_spill_mask_), fp_spill_mask, false); - } - - // Is this a CalleSaveMethod or ResolutionMethod and therefore doesn't adhere to normal - // conventions for a method of managed code. Returns false for Proxy methods. - bool IsRuntimeMethod() const { - return GetDexMethodIndex() == DexFile::kDexNoIndex16; - } - - // Is this a hand crafted method used for something like describing callee saves? - bool IsCalleeSaveMethod() const { - if (!IsRuntimeMethod()) { - return false; - } - Runtime* runtime = Runtime::Current(); - bool result = false; - for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { - if (this == runtime->GetCalleeSaveMethod(Runtime::CalleeSaveType(i))) { - result = true; - break; - } - } - return result; - } - - bool IsResolutionMethod() const { - bool result = this == Runtime::Current()->GetResolutionMethod(); - // Check that if we do think it is phony it looks like the resolution method - DCHECK(!result || GetDexMethodIndex() == DexFile::kDexNoIndex16); - return result; - } - - uintptr_t NativePcOffset(const uintptr_t pc) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Converts a native PC to a dex PC. - uint32_t ToDexPc(const uintptr_t pc) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Converts a dex PC to a native PC. - uintptr_t ToNativePc(const uint32_t dex_pc) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Converts a dex PC to the first corresponding safepoint PC. - uintptr_t ToFirstNativeSafepointPc(const uint32_t dex_pc) - const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Find the catch block for the given exception type and dex_pc - uint32_t FindCatchBlock(Class* exception_type, uint32_t dex_pc) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static void SetClasses(Class* java_lang_reflect_Constructor, Class* java_lang_reflect_Method); - - static Class* GetConstructorClass() { - return java_lang_reflect_Constructor_; - } - - static Class* GetMethodClass() { - return java_lang_reflect_Method_; - } - - static void ResetClasses(); - - protected: - // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". - // The class we are a part of - Class* declaring_class_; - - // short cuts to declaring_class_->dex_cache_ member for fast compiled code access - ObjectArray<StaticStorageBase>* dex_cache_initialized_static_storage_; - - // short cuts to declaring_class_->dex_cache_ member for fast compiled code access - ObjectArray<AbstractMethod>* dex_cache_resolved_methods_; - - // short cuts to declaring_class_->dex_cache_ member for fast compiled code access - ObjectArray<Class>* dex_cache_resolved_types_; - - // short cuts to declaring_class_->dex_cache_ member for fast compiled code access - ObjectArray<String>* dex_cache_strings_; - - // Access flags; low 16 bits are defined by spec. - uint32_t access_flags_; - - // Compiled code associated with this method for callers from managed code. - // May be compiled managed code or a bridge for invoking a native method. - const void* code_; - - // Offset to the CodeItem. - uint32_t code_item_offset_; - - // Architecture-dependent register spill mask - uint32_t core_spill_mask_; - - // Architecture-dependent register spill mask - uint32_t fp_spill_mask_; - - // Total size in bytes of the frame - size_t frame_size_in_bytes_; - - // Garbage collection map of native PC offsets to reference bitmaps. - const uint8_t* native_gc_map_; - - // Native invocation stub entry point for calling from native to managed code. - InvokeStub* invoke_stub_; - - // Mapping from native pc to dex pc - const uint32_t* mapping_table_; - - // Index into method_ids of the dex file associated with this method - uint32_t method_dex_index_; - - // For concrete virtual methods, this is the offset of the method in Class::vtable_. - // - // For abstract methods in an interface class, this is the offset of the method in - // "iftable_->Get(n)->GetMethodArray()". - // - // For static and direct methods this is the index in the direct methods table. - uint32_t method_index_; - - // The target native method registered with this method - const void* native_method_; - - // When a register is promoted into a register, the spill mask holds which registers hold dex - // registers. The first promoted register's corresponding dex register is vmap_table_[1], the Nth - // is vmap_table_[N]. vmap_table_[0] holds the length of the table. - const uint16_t* vmap_table_; - - static Class* java_lang_reflect_Constructor_; - static Class* java_lang_reflect_Method_; - - friend class ImageWriter; // for relocating code_ and invoke_stub_ - friend struct AbstractMethodOffsets; // for verifying offset information - friend struct ConstructorMethodOffsets; // for verifying offset information - friend struct MethodOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(AbstractMethod); -}; - -class MANAGED Method : public AbstractMethod { - -}; - -class MANAGED Constructor : public AbstractMethod { - -}; - -class MANAGED Array : public Object { - public: - // A convenience for code that doesn't know the component size, - // and doesn't want to have to work it out itself. - static Array* Alloc(Thread* self, Class* array_class, int32_t component_count) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static Array* Alloc(Thread* self, Class* array_class, int32_t component_count, - size_t component_size) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static Array* CreateMultiArray(Thread* self, Class* element_class, IntArray* dimensions) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - size_t SizeOf() const; - - int32_t GetLength() const { - return GetField32(OFFSET_OF_OBJECT_MEMBER(Array, length_), false); - } - - void SetLength(int32_t length) { - CHECK_GE(length, 0); - SetField32(OFFSET_OF_OBJECT_MEMBER(Array, length_), length, false); - } - - static MemberOffset LengthOffset() { - return OFFSET_OF_OBJECT_MEMBER(Array, length_); - } - - static MemberOffset DataOffset(size_t component_size) { - if (component_size != sizeof(int64_t)) { - return OFFSET_OF_OBJECT_MEMBER(Array, first_element_); - } else { - // Align longs and doubles. - return MemberOffset(OFFSETOF_MEMBER(Array, first_element_) + 4); - } - } - - void* GetRawData(size_t component_size) { - intptr_t data = reinterpret_cast<intptr_t>(this) + DataOffset(component_size).Int32Value(); - return reinterpret_cast<void*>(data); - } - - const void* GetRawData(size_t component_size) const { - intptr_t data = reinterpret_cast<intptr_t>(this) + DataOffset(component_size).Int32Value(); - return reinterpret_cast<const void*>(data); - } - - protected: - bool IsValidIndex(int32_t index) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - if (UNLIKELY(index < 0 || index >= GetLength())) { - return ThrowArrayIndexOutOfBoundsException(index); - } - return true; - } - - protected: - bool ThrowArrayIndexOutOfBoundsException(int32_t index) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - bool ThrowArrayStoreException(Object* object) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - private: - // The number of array elements. - int32_t length_; - // Marker for the data (used by generated code) - uint32_t first_element_[0]; - - DISALLOW_IMPLICIT_CONSTRUCTORS(Array); -}; - -template<class T> -class MANAGED ObjectArray : public Array { - public: - static ObjectArray<T>* Alloc(Thread* self, Class* object_array_class, int32_t length) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - T* Get(int32_t i) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - void Set(int32_t i, T* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Set element without bound and element type checks, to be used in limited - // circumstances, such as during boot image writing - void SetWithoutChecks(int32_t i, T* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Set element without bound and element type checks, to be used in limited circumstances, such - // as during boot image writing. Does not do write barrier. - void SetPtrWithoutChecks(int32_t i, T* object) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - T* GetWithoutChecks(int32_t i) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static void Copy(const ObjectArray<T>* src, int src_pos, - ObjectArray<T>* dst, int dst_pos, - size_t length) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - ObjectArray<T>* CopyOf(Thread* self, int32_t new_length) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - private: - DISALLOW_IMPLICIT_CONSTRUCTORS(ObjectArray); -}; - -template<class T> -ObjectArray<T>* ObjectArray<T>::Alloc(Thread* self, Class* object_array_class, int32_t length) { - Array* array = Array::Alloc(self, object_array_class, length, sizeof(Object*)); - if (UNLIKELY(array == NULL)) { - return NULL; - } else { - return array->AsObjectArray<T>(); - } -} - -template<class T> -inline T* ObjectArray<T>::Get(int32_t i) const { - if (UNLIKELY(!IsValidIndex(i))) { - return NULL; - } - MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*)); - return GetFieldObject<T*>(data_offset, false); -} - -template<class T> -ObjectArray<T>* ObjectArray<T>::CopyOf(Thread* self, int32_t new_length) { - ObjectArray<T>* new_array = Alloc(self, GetClass(), new_length); - Copy(this, 0, new_array, 0, std::min(GetLength(), new_length)); - return new_array; -} - -class MANAGED IfTable : public ObjectArray<Object> { - public: - Class* GetInterface(int32_t i) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - Class* interface = Get((i * kMax) + kInterface)->AsClass(); - DCHECK(interface != NULL); - return interface; - } - - void SetInterface(int32_t i, Class* interface) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - ObjectArray<AbstractMethod>* GetMethodArray(int32_t i) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - ObjectArray<AbstractMethod>* method_array = - down_cast<ObjectArray<AbstractMethod>*>(Get((i * kMax) + kMethodArray)); - DCHECK(method_array != NULL); - return method_array; - } - - size_t GetMethodArrayCount(int32_t i) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - ObjectArray<AbstractMethod>* method_array = - down_cast<ObjectArray<AbstractMethod>*>(Get((i * kMax) + kMethodArray)); - if (method_array == NULL) { - return 0; - } - return method_array->GetLength(); - } - - void SetMethodArray(int32_t i, ObjectArray<AbstractMethod>* new_ma) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(new_ma != NULL); - DCHECK(Get((i * kMax) + kMethodArray) == NULL); - Set((i * kMax) + kMethodArray, new_ma); - } - - size_t Count() const { - return GetLength() / kMax; - } - - enum { - // Points to the interface class. - kInterface = 0, - // Method pointers into the vtable, allow fast map from interface method index to concrete - // instance method. - kMethodArray = 1, - kMax = 2, - }; - - private: - DISALLOW_IMPLICIT_CONSTRUCTORS(IfTable); -}; - -// Type for the InitializedStaticStorage table. Currently the Class -// provides the static storage. However, this might change to an Array -// to improve image sharing, so we use this type to avoid assumptions -// on the current storage. -class MANAGED StaticStorageBase : public Object { -}; - -// C++ mirror of java.lang.Class -class MANAGED Class : public StaticStorageBase { - public: - // Class Status - // - // kStatusNotReady: If a Class cannot be found in the class table by - // FindClass, it allocates an new one with AllocClass in the - // kStatusNotReady and calls LoadClass. Note if it does find a - // class, it may not be kStatusResolved and it will try to push it - // forward toward kStatusResolved. - // - // kStatusIdx: LoadClass populates with Class with information from - // the DexFile, moving the status to kStatusIdx, indicating that the - // Class value in super_class_ has not been populated. The new Class - // can then be inserted into the classes table. - // - // kStatusLoaded: After taking a lock on Class, the ClassLinker will - // attempt to move a kStatusIdx class forward to kStatusLoaded by - // using ResolveClass to initialize the super_class_ and ensuring the - // interfaces are resolved. - // - // kStatusResolved: Still holding the lock on Class, the ClassLinker - // shows linking is complete and fields of the Class populated by making - // it kStatusResolved. Java allows circularities of the form where a super - // class has a field that is of the type of the sub class. We need to be able - // to fully resolve super classes while resolving types for fields. - // - // kStatusRetryVerificationAtRuntime: The verifier sets a class to - // this state if it encounters a soft failure at compile time. This - // often happens when there are unresolved classes in other dex - // files, and this status marks a class as needing to be verified - // again at runtime. - // - // TODO: Explain the other states - enum Status { - kStatusError = -1, - kStatusNotReady = 0, - kStatusIdx = 1, // Loaded, DEX idx in super_class_type_idx_ and interfaces_type_idx_. - kStatusLoaded = 2, // DEX idx values resolved. - kStatusResolved = 3, // Part of linking. - kStatusVerifying = 4, // In the process of being verified. - kStatusRetryVerificationAtRuntime = 5, // Compile time verification failed, retry at runtime. - kStatusVerifyingAtRuntime = 6, // Retrying verification at runtime. - kStatusVerified = 7, // Logically part of linking; done pre-init. - kStatusInitializing = 8, // Class init in progress. - kStatusInitialized = 9, // Ready to go. - }; - - Status GetStatus() const { - DCHECK_EQ(sizeof(Status), sizeof(uint32_t)); - return static_cast<Status>(GetField32(OFFSET_OF_OBJECT_MEMBER(Class, status_), false)); - } - - void SetStatus(Status new_status) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Returns true if the class has failed to link. - bool IsErroneous() const { - return GetStatus() == kStatusError; - } - - // Returns true if the class has been loaded. - bool IsIdxLoaded() const { - return GetStatus() >= kStatusIdx; - } - - // Returns true if the class has been loaded. - bool IsLoaded() const { - return GetStatus() >= kStatusLoaded; - } - - // Returns true if the class has been linked. - bool IsResolved() const { - return GetStatus() >= kStatusResolved; - } - - // Returns true if the class was compile-time verified. - bool IsCompileTimeVerified() const { - return GetStatus() >= kStatusRetryVerificationAtRuntime; - } - - // Returns true if the class has been verified. - bool IsVerified() const { - return GetStatus() >= kStatusVerified; - } - - // Returns true if the class is initializing. - bool IsInitializing() const { - return GetStatus() >= kStatusInitializing; - } - - // Returns true if the class is initialized. - bool IsInitialized() const { - return GetStatus() == kStatusInitialized; - } - - uint32_t GetAccessFlags() const; - - void SetAccessFlags(uint32_t new_access_flags) { - SetField32(OFFSET_OF_OBJECT_MEMBER(Class, access_flags_), new_access_flags, false); - } - - // Returns true if the class is an interface. - bool IsInterface() const { - return (GetAccessFlags() & kAccInterface) != 0; - } - - // Returns true if the class is declared public. - bool IsPublic() const { - return (GetAccessFlags() & kAccPublic) != 0; - } - - // Returns true if the class is declared final. - bool IsFinal() const { - return (GetAccessFlags() & kAccFinal) != 0; - } - - bool IsFinalizable() const { - return (GetAccessFlags() & kAccClassIsFinalizable) != 0; - } - - void SetFinalizable() { - uint32_t flags = GetField32(OFFSET_OF_OBJECT_MEMBER(Class, access_flags_), false); - SetAccessFlags(flags | kAccClassIsFinalizable); - } - - // Returns true if the class is abstract. - bool IsAbstract() const { - return (GetAccessFlags() & kAccAbstract) != 0; - } - - // Returns true if the class is an annotation. - bool IsAnnotation() const { - return (GetAccessFlags() & kAccAnnotation) != 0; - } - - // Returns true if the class is synthetic. - bool IsSynthetic() const { - return (GetAccessFlags() & kAccSynthetic) != 0; - } - - bool IsReferenceClass() const { - return (GetAccessFlags() & kAccClassIsReference) != 0; - } - - bool IsWeakReferenceClass() const { - return (GetAccessFlags() & kAccClassIsWeakReference) != 0; - } - - bool IsSoftReferenceClass() const { - return (GetAccessFlags() & kAccReferenceFlagsMask) == kAccClassIsReference; - } - - bool IsFinalizerReferenceClass() const { - return (GetAccessFlags() & kAccClassIsFinalizerReference) != 0; - } - - bool IsPhantomReferenceClass() const { - return (GetAccessFlags() & kAccClassIsPhantomReference) != 0; - } - - - String* GetName() const; // Returns the cached name. - void SetName(String* name) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); // Sets the cached name. - // Computes the name, then sets the cached value. - String* ComputeName() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - bool IsProxyClass() const { - // Read access flags without using getter as whether something is a proxy can be check in - // any loaded state - // TODO: switch to a check if the super class is java.lang.reflect.Proxy? - uint32_t access_flags = GetField32(OFFSET_OF_OBJECT_MEMBER(Class, access_flags_), false); - return (access_flags & kAccClassIsProxy) != 0; - } - - Primitive::Type GetPrimitiveType() const { - DCHECK_EQ(sizeof(Primitive::Type), sizeof(int32_t)); - return static_cast<Primitive::Type>( - GetField32(OFFSET_OF_OBJECT_MEMBER(Class, primitive_type_), false)); - } - - void SetPrimitiveType(Primitive::Type new_type) { - DCHECK_EQ(sizeof(Primitive::Type), sizeof(int32_t)); - SetField32(OFFSET_OF_OBJECT_MEMBER(Class, primitive_type_), new_type, false); - } - - // Returns true if the class is a primitive type. - bool IsPrimitive() const { - return GetPrimitiveType() != Primitive::kPrimNot; - } - - bool IsPrimitiveBoolean() const { - return GetPrimitiveType() == Primitive::kPrimBoolean; - } - - bool IsPrimitiveByte() const { - return GetPrimitiveType() == Primitive::kPrimByte; - } - - bool IsPrimitiveChar() const { - return GetPrimitiveType() == Primitive::kPrimChar; - } - - bool IsPrimitiveShort() const { - return GetPrimitiveType() == Primitive::kPrimShort; - } - - bool IsPrimitiveInt() const { - return GetPrimitiveType() == Primitive::kPrimInt; - } - - bool IsPrimitiveLong() const { - return GetPrimitiveType() == Primitive::kPrimLong; - } - - bool IsPrimitiveFloat() const { - return GetPrimitiveType() == Primitive::kPrimFloat; - } - - bool IsPrimitiveDouble() const { - return GetPrimitiveType() == Primitive::kPrimDouble; - } - - bool IsPrimitiveVoid() const { - return GetPrimitiveType() == Primitive::kPrimVoid; - } - - bool IsPrimitiveArray() const { - return IsArrayClass() && GetComponentType()->IsPrimitive(); - } - - // Depth of class from java.lang.Object - size_t Depth() { - size_t depth = 0; - for (Class* klass = this; klass->GetSuperClass() != NULL; klass = klass->GetSuperClass()) { - depth++; - } - return depth; - } - - bool IsArrayClass() const { - return GetComponentType() != NULL; - } - - bool IsClassClass() const; - - bool IsStringClass() const; - - bool IsThrowableClass() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - bool IsFieldClass() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - bool IsMethodClass() const; - - Class* GetComponentType() const { - return GetFieldObject<Class*>(OFFSET_OF_OBJECT_MEMBER(Class, component_type_), false); - } - - void SetComponentType(Class* new_component_type) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(GetComponentType() == NULL); - DCHECK(new_component_type != NULL); - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Class, component_type_), new_component_type, false); - } - - size_t GetComponentSize() const { - return Primitive::ComponentSize(GetComponentType()->GetPrimitiveType()); - } - - bool IsObjectClass() const { - return !IsPrimitive() && GetSuperClass() == NULL; - } - bool IsInstantiable() const { - return !IsPrimitive() && !IsInterface() && !IsAbstract(); - } - - bool IsObjectArrayClass() const { - return GetComponentType() != NULL && !GetComponentType()->IsPrimitive(); - } - - // Creates a raw object instance but does not invoke the default constructor. - Object* AllocObject(Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - bool IsVariableSize() const { - // Classes and arrays vary in size, and so the object_size_ field cannot - // be used to get their instance size - return IsClassClass() || IsArrayClass(); - } - - size_t SizeOf() const { - DCHECK_EQ(sizeof(size_t), sizeof(int32_t)); - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, class_size_), false); - } - - size_t GetClassSize() const { - DCHECK_EQ(sizeof(size_t), sizeof(uint32_t)); - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, class_size_), false); - } - - void SetClassSize(size_t new_class_size) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - size_t GetObjectSize() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - CHECK(!IsVariableSize()) << " class=" << PrettyTypeOf(this); - DCHECK_EQ(sizeof(size_t), sizeof(int32_t)); - size_t result = GetField32(OFFSET_OF_OBJECT_MEMBER(Class, object_size_), false); - CHECK_GE(result, sizeof(Object)) << " class=" << PrettyTypeOf(this); - return result; - } - - void SetObjectSize(size_t new_object_size) { - DCHECK(!IsVariableSize()); - DCHECK_EQ(sizeof(size_t), sizeof(int32_t)); - return SetField32(OFFSET_OF_OBJECT_MEMBER(Class, object_size_), new_object_size, false); - } - - // Returns true if this class is in the same packages as that class. - bool IsInSamePackage(const Class* that) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static bool IsInSamePackage(const StringPiece& descriptor1, const StringPiece& descriptor2); - - // Returns true if this class can access that class. - bool CanAccess(Class* that) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - return that->IsPublic() || this->IsInSamePackage(that); - } - - // Can this class access a member in the provided class with the provided member access flags? - // Note that access to the class isn't checked in case the declaring class is protected and the - // method has been exposed by a public sub-class - bool CanAccessMember(Class* access_to, uint32_t member_flags) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - // Classes can access all of their own members - if (this == access_to) { - return true; - } - // Public members are trivially accessible - if (member_flags & kAccPublic) { - return true; - } - // Private members are trivially not accessible - if (member_flags & kAccPrivate) { - return false; - } - // Check for protected access from a sub-class, which may or may not be in the same package. - if (member_flags & kAccProtected) { - if (this->IsSubClass(access_to)) { - return true; - } - } - // Allow protected access from other classes in the same package. - return this->IsInSamePackage(access_to); - } - - bool IsSubClass(const Class* klass) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Can src be assigned to this class? For example, String can be assigned to Object (by an - // upcast), however, an Object cannot be assigned to a String as a potentially exception throwing - // downcast would be necessary. Similarly for interfaces, a class that implements (or an interface - // that extends) another can be assigned to its parent, but not vice-versa. All Classes may assign - // to themselves. Classes for primitive types may not assign to each other. - bool IsAssignableFrom(const Class* src) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(src != NULL); - if (this == src) { - // Can always assign to things of the same type. - return true; - } else if (IsObjectClass()) { - // Can assign any reference to java.lang.Object. - return !src->IsPrimitive(); - } else if (IsInterface()) { - return src->Implements(this); - } else if (src->IsArrayClass()) { - return IsAssignableFromArray(src); - } else { - return !src->IsInterface() && src->IsSubClass(this); - } - } - - Class* GetSuperClass() const { - // Can only get super class for loaded classes (hack for when runtime is - // initializing) - DCHECK(IsLoaded() || !Runtime::Current()->IsStarted()) << IsLoaded(); - return GetFieldObject<Class*>(OFFSET_OF_OBJECT_MEMBER(Class, super_class_), false); - } - - void SetSuperClass(Class *new_super_class) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - // super class is assigned once, except during class linker initialization - Class* old_super_class = GetFieldObject<Class*>( - OFFSET_OF_OBJECT_MEMBER(Class, super_class_), false); - DCHECK(old_super_class == NULL || old_super_class == new_super_class); - DCHECK(new_super_class != NULL); - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Class, super_class_), new_super_class, false); - } - - bool HasSuperClass() const { - return GetSuperClass() != NULL; - } - - static MemberOffset SuperClassOffset() { - return MemberOffset(OFFSETOF_MEMBER(Class, super_class_)); - } - - ClassLoader* GetClassLoader() const; - - void SetClassLoader(ClassLoader* new_cl) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static MemberOffset DexCacheOffset() { - return MemberOffset(OFFSETOF_MEMBER(Class, dex_cache_)); - } - - enum { - kDumpClassFullDetail = 1, - kDumpClassClassLoader = (1 << 1), - kDumpClassInitialized = (1 << 2), - }; - - void DumpClass(std::ostream& os, int flags) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - DexCache* GetDexCache() const; - - void SetDexCache(DexCache* new_dex_cache) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - ObjectArray<AbstractMethod>* GetDirectMethods() const { - DCHECK(IsLoaded() || IsErroneous()); - return GetFieldObject<ObjectArray<AbstractMethod>*>( - OFFSET_OF_OBJECT_MEMBER(Class, direct_methods_), false); - } - - void SetDirectMethods(ObjectArray<AbstractMethod>* new_direct_methods) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(NULL == GetFieldObject<ObjectArray<AbstractMethod>*>( - OFFSET_OF_OBJECT_MEMBER(Class, direct_methods_), false)); - DCHECK_NE(0, new_direct_methods->GetLength()); - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Class, direct_methods_), - new_direct_methods, false); - } - - AbstractMethod* GetDirectMethod(int32_t i) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - return GetDirectMethods()->Get(i); - } - - void SetDirectMethod(uint32_t i, AbstractMethod* f) // TODO: uint16_t - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_){ - ObjectArray<AbstractMethod>* direct_methods = - GetFieldObject<ObjectArray<AbstractMethod>*>( - OFFSET_OF_OBJECT_MEMBER(Class, direct_methods_), false); - direct_methods->Set(i, f); - } - - // Returns the number of static, private, and constructor methods. - size_t NumDirectMethods() const { - return (GetDirectMethods() != NULL) ? GetDirectMethods()->GetLength() : 0; - } - - ObjectArray<AbstractMethod>* GetVirtualMethods() const { - DCHECK(IsLoaded() || IsErroneous()); - return GetFieldObject<ObjectArray<AbstractMethod>*>( - OFFSET_OF_OBJECT_MEMBER(Class, virtual_methods_), false); - } - - void SetVirtualMethods(ObjectArray<AbstractMethod>* new_virtual_methods) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - // TODO: we reassign virtual methods to grow the table for miranda - // methods.. they should really just be assigned once - DCHECK_NE(0, new_virtual_methods->GetLength()); - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Class, virtual_methods_), - new_virtual_methods, false); - } - - // Returns the number of non-inherited virtual methods. - size_t NumVirtualMethods() const { - return (GetVirtualMethods() != NULL) ? GetVirtualMethods()->GetLength() : 0; - } - - AbstractMethod* GetVirtualMethod(uint32_t i) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(IsResolved() || IsErroneous()); - return GetVirtualMethods()->Get(i); - } - - AbstractMethod* GetVirtualMethodDuringLinking(uint32_t i) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(IsLoaded() || IsErroneous()); - return GetVirtualMethods()->Get(i); - } - - void SetVirtualMethod(uint32_t i, AbstractMethod* f) // TODO: uint16_t - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - ObjectArray<AbstractMethod>* virtual_methods = - GetFieldObject<ObjectArray<AbstractMethod>*>( - OFFSET_OF_OBJECT_MEMBER(Class, virtual_methods_), false); - virtual_methods->Set(i, f); - } - - ObjectArray<AbstractMethod>* GetVTable() const { - DCHECK(IsResolved() || IsErroneous()); - return GetFieldObject<ObjectArray<AbstractMethod>*>(OFFSET_OF_OBJECT_MEMBER(Class, vtable_), false); - } - - ObjectArray<AbstractMethod>* GetVTableDuringLinking() const { - DCHECK(IsLoaded() || IsErroneous()); - return GetFieldObject<ObjectArray<AbstractMethod>*>(OFFSET_OF_OBJECT_MEMBER(Class, vtable_), false); - } - - void SetVTable(ObjectArray<AbstractMethod>* new_vtable) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Class, vtable_), new_vtable, false); - } - - static MemberOffset VTableOffset() { - return OFFSET_OF_OBJECT_MEMBER(Class, vtable_); - } - - // Given a method implemented by this class but potentially from a - // super class, return the specific implementation - // method for this class. - AbstractMethod* FindVirtualMethodForVirtual(AbstractMethod* method) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(!method->GetDeclaringClass()->IsInterface()); - // The argument method may from a super class. - // Use the index to a potentially overridden one for this instance's class. - return GetVTable()->Get(method->GetMethodIndex()); - } - - // Given a method implemented by this class' super class, return the specific implementation - // method for this class. - AbstractMethod* FindVirtualMethodForSuper(AbstractMethod* method) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(!method->GetDeclaringClass()->IsInterface()); - return GetSuperClass()->GetVTable()->Get(method->GetMethodIndex()); - } - - // Given a method implemented by this class, but potentially from a - // super class or interface, return the specific implementation - // method for this class. - AbstractMethod* FindVirtualMethodForInterface(AbstractMethod* method) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - AbstractMethod* FindInterfaceMethod(const StringPiece& name, const StringPiece& descriptor) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - AbstractMethod* FindInterfaceMethod(const DexCache* dex_cache, uint32_t dex_method_idx) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - AbstractMethod* FindVirtualMethodForVirtualOrInterface(AbstractMethod* method) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - if (method->IsDirect()) { - return method; - } - if (method->GetDeclaringClass()->IsInterface()) { - return FindVirtualMethodForInterface(method); - } - return FindVirtualMethodForVirtual(method); - } - - AbstractMethod* FindDeclaredVirtualMethod(const StringPiece& name, const StringPiece& signature) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - AbstractMethod* FindDeclaredVirtualMethod(const DexCache* dex_cache, uint32_t dex_method_idx) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - AbstractMethod* FindVirtualMethod(const StringPiece& name, const StringPiece& descriptor) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - AbstractMethod* FindVirtualMethod(const DexCache* dex_cache, uint32_t dex_method_idx) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - AbstractMethod* FindDeclaredDirectMethod(const StringPiece& name, const StringPiece& signature) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - AbstractMethod* FindDeclaredDirectMethod(const DexCache* dex_cache, uint32_t dex_method_idx) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - AbstractMethod* FindDirectMethod(const StringPiece& name, const StringPiece& signature) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - AbstractMethod* FindDirectMethod(const DexCache* dex_cache, uint32_t dex_method_idx) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - int32_t GetIfTableCount() const { - IfTable* iftable = GetIfTable(); - if (iftable == NULL) { - return 0; - } - return iftable->Count(); - } - - IfTable* GetIfTable() const { - return GetFieldObject<IfTable*>(OFFSET_OF_OBJECT_MEMBER(Class, iftable_), false); - } - - void SetIfTable(IfTable* new_iftable) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Class, iftable_), new_iftable, false); - } - - // Get instance fields of the class (See also GetSFields). - ObjectArray<Field>* GetIFields() const { - DCHECK(IsLoaded() || IsErroneous()); - return GetFieldObject<ObjectArray<Field>*>(OFFSET_OF_OBJECT_MEMBER(Class, ifields_), false); - } - - void SetIFields(ObjectArray<Field>* new_ifields) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(NULL == GetFieldObject<ObjectArray<Field>*>( - OFFSET_OF_OBJECT_MEMBER(Class, ifields_), false)); - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Class, ifields_), new_ifields, false); - } - - size_t NumInstanceFields() const { - return (GetIFields() != NULL) ? GetIFields()->GetLength() : 0; - } - - Field* GetInstanceField(uint32_t i) const // TODO: uint16_t - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_){ - DCHECK_NE(NumInstanceFields(), 0U); - return GetIFields()->Get(i); - } - - void SetInstanceField(uint32_t i, Field* f) // TODO: uint16_t - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_){ - ObjectArray<Field>* ifields= GetFieldObject<ObjectArray<Field>*>( - OFFSET_OF_OBJECT_MEMBER(Class, ifields_), false); - ifields->Set(i, f); - } - - // Returns the number of instance fields containing reference types. - size_t NumReferenceInstanceFields() const { - DCHECK(IsResolved() || IsErroneous()); - DCHECK_EQ(sizeof(size_t), sizeof(int32_t)); - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, num_reference_instance_fields_), false); - } - - size_t NumReferenceInstanceFieldsDuringLinking() const { - DCHECK(IsLoaded() || IsErroneous()); - DCHECK_EQ(sizeof(size_t), sizeof(int32_t)); - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, num_reference_instance_fields_), false); - } - - void SetNumReferenceInstanceFields(size_t new_num) { - DCHECK_EQ(sizeof(size_t), sizeof(int32_t)); - SetField32(OFFSET_OF_OBJECT_MEMBER(Class, num_reference_instance_fields_), new_num, false); - } - - uint32_t GetReferenceInstanceOffsets() const { - DCHECK(IsResolved() || IsErroneous()); - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, reference_instance_offsets_), false); - } - - void SetReferenceInstanceOffsets(uint32_t new_reference_offsets); - - // Beginning of static field data - static MemberOffset FieldsOffset() { - return OFFSET_OF_OBJECT_MEMBER(Class, fields_); - } - - // Returns the number of static fields containing reference types. - size_t NumReferenceStaticFields() const { - DCHECK(IsResolved() || IsErroneous()); - DCHECK_EQ(sizeof(size_t), sizeof(int32_t)); - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, num_reference_static_fields_), false); - } - - size_t NumReferenceStaticFieldsDuringLinking() const { - DCHECK(IsLoaded() || IsErroneous()); - DCHECK_EQ(sizeof(size_t), sizeof(int32_t)); - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, num_reference_static_fields_), false); - } - - void SetNumReferenceStaticFields(size_t new_num) { - DCHECK_EQ(sizeof(size_t), sizeof(int32_t)); - SetField32(OFFSET_OF_OBJECT_MEMBER(Class, num_reference_static_fields_), new_num, false); - } - - // Gets the static fields of the class. - ObjectArray<Field>* GetSFields() const { - DCHECK(IsLoaded() || IsErroneous()); - return GetFieldObject<ObjectArray<Field>*>(OFFSET_OF_OBJECT_MEMBER(Class, sfields_), false); - } - - void SetSFields(ObjectArray<Field>* new_sfields) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(NULL == GetFieldObject<ObjectArray<Field>*>( - OFFSET_OF_OBJECT_MEMBER(Class, sfields_), false)); - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Class, sfields_), new_sfields, false); - } - - size_t NumStaticFields() const { - return (GetSFields() != NULL) ? GetSFields()->GetLength() : 0; - } - - Field* GetStaticField(uint32_t i) const // TODO: uint16_t - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - return GetSFields()->Get(i); - } - - void SetStaticField(uint32_t i, Field* f) // TODO: uint16_t - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - ObjectArray<Field>* sfields= GetFieldObject<ObjectArray<Field>*>( - OFFSET_OF_OBJECT_MEMBER(Class, sfields_), false); - sfields->Set(i, f); - } - - uint32_t GetReferenceStaticOffsets() const { - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, reference_static_offsets_), false); - } - - void SetReferenceStaticOffsets(uint32_t new_reference_offsets); - - // Find a static or instance field using the JLS resolution order - Field* FindField(const StringPiece& name, const StringPiece& type) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Finds the given instance field in this class or a superclass. - Field* FindInstanceField(const StringPiece& name, const StringPiece& type) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Finds the given instance field in this class or a superclass, only searches classes that - // have the same dex cache. - Field* FindInstanceField(const DexCache* dex_cache, uint32_t dex_field_idx) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - Field* FindDeclaredInstanceField(const StringPiece& name, const StringPiece& type) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - Field* FindDeclaredInstanceField(const DexCache* dex_cache, uint32_t dex_field_idx) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Finds the given static field in this class or a superclass. - Field* FindStaticField(const StringPiece& name, const StringPiece& type) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Finds the given static field in this class or superclass, only searches classes that - // have the same dex cache. - Field* FindStaticField(const DexCache* dex_cache, uint32_t dex_field_idx) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - Field* FindDeclaredStaticField(const StringPiece& name, const StringPiece& type) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - Field* FindDeclaredStaticField(const DexCache* dex_cache, uint32_t dex_field_idx) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - pid_t GetClinitThreadId() const { - DCHECK(IsIdxLoaded() || IsErroneous()); - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, clinit_thread_id_), false); - } - - void SetClinitThreadId(pid_t new_clinit_thread_id) { - SetField32(OFFSET_OF_OBJECT_MEMBER(Class, clinit_thread_id_), new_clinit_thread_id, false); - } - - Class* GetVerifyErrorClass() const { - // DCHECK(IsErroneous()); - return GetFieldObject<Class*>(OFFSET_OF_OBJECT_MEMBER(Class, verify_error_class_), false); - } - - uint16_t GetDexTypeIndex() const { - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, dex_type_idx_), false); - } - - void SetDexTypeIndex(uint16_t type_idx) { - SetField32(OFFSET_OF_OBJECT_MEMBER(Class, dex_type_idx_), type_idx, false); - } - - static Class* GetJavaLangClass() { - DCHECK(java_lang_Class_ != NULL); - return java_lang_Class_; - } - - // Can't call this SetClass or else gets called instead of Object::SetClass in places. - static void SetClassClass(Class* java_lang_Class); - static void ResetClass(); - - private: - void SetVerifyErrorClass(Class* klass) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - CHECK(klass != NULL) << PrettyClass(this); - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Class, verify_error_class_), klass, false); - } - - bool Implements(const Class* klass) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - bool IsArrayAssignableFromArray(const Class* klass) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - bool IsAssignableFromArray(const Class* klass) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // defining class loader, or NULL for the "bootstrap" system loader - ClassLoader* class_loader_; - - // For array classes, the component class object for instanceof/checkcast - // (for String[][][], this will be String[][]). NULL for non-array classes. - Class* component_type_; - - // DexCache of resolved constant pool entries (will be NULL for classes generated by the - // runtime such as arrays and primitive classes). - DexCache* dex_cache_; - - // static, private, and <init> methods - ObjectArray<AbstractMethod>* direct_methods_; - - // instance fields - // - // These describe the layout of the contents of an Object. - // Note that only the fields directly declared by this class are - // listed in ifields; fields declared by a superclass are listed in - // the superclass's Class.ifields. - // - // All instance fields that refer to objects are guaranteed to be at - // the beginning of the field list. num_reference_instance_fields_ - // specifies the number of reference fields. - ObjectArray<Field>* ifields_; - - // The interface table (iftable_) contains pairs of a interface class and an array of the - // interface methods. There is one pair per interface supported by this class. That means one - // pair for each interface we support directly, indirectly via superclass, or indirectly via a - // superinterface. This will be null if neither we nor our superclass implement any interfaces. - // - // Why we need this: given "class Foo implements Face", declare "Face faceObj = new Foo()". - // Invoke faceObj.blah(), where "blah" is part of the Face interface. We can't easily use a - // single vtable. - // - // For every interface a concrete class implements, we create an array of the concrete vtable_ - // methods for the methods in the interface. - IfTable* iftable_; - - // descriptor for the class such as "java.lang.Class" or "[C". Lazily initialized by ComputeName - String* name_; - - // Static fields - ObjectArray<Field>* sfields_; - - // The superclass, or NULL if this is java.lang.Object, an interface or primitive type. - Class* super_class_; - - // If class verify fails, we must return same error on subsequent tries. - Class* verify_error_class_; - - // virtual methods defined in this class; invoked through vtable - ObjectArray<AbstractMethod>* virtual_methods_; - - // Virtual method table (vtable), for use by "invoke-virtual". The vtable from the superclass is - // copied in, and virtual methods from our class either replace those from the super or are - // appended. For abstract classes, methods may be created in the vtable that aren't in - // virtual_ methods_ for miranda methods. - ObjectArray<AbstractMethod>* vtable_; - - // access flags; low 16 bits are defined by VM spec - uint32_t access_flags_; - - // Total size of the Class instance; used when allocating storage on gc heap. - // See also object_size_. - size_t class_size_; - - // tid used to check for recursive <clinit> invocation - pid_t clinit_thread_id_; - - // type index from dex file - // TODO: really 16bits - uint32_t dex_type_idx_; - - // number of instance fields that are object refs - size_t num_reference_instance_fields_; - - // number of static fields that are object refs - size_t num_reference_static_fields_; - - // Total object size; used when allocating storage on gc heap. - // (For interfaces and abstract classes this will be zero.) - // See also class_size_. - size_t object_size_; - - // primitive type value, or Primitive::kPrimNot (0); set for generated prim classes - Primitive::Type primitive_type_; - - // Bitmap of offsets of ifields. - uint32_t reference_instance_offsets_; - - // Bitmap of offsets of sfields. - uint32_t reference_static_offsets_; - - // state of class initialization - Status status_; - - // TODO: ? - // initiating class loader list - // NOTE: for classes with low serialNumber, these are unused, and the - // values are kept in a table in gDvm. - // InitiatingLoaderList initiating_loader_list_; - - // Location of first static field. - uint32_t fields_[0]; - - // java.lang.Class - static Class* java_lang_Class_; - - friend struct ClassOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(Class); -}; - -std::ostream& operator<<(std::ostream& os, const Class::Status& rhs); - -inline void Object::SetClass(Class* new_klass) { - // new_klass may be NULL prior to class linker initialization - // We don't mark the card since the class is guaranteed to be referenced from another location. - // Proxy classes are held live by the class loader, and other classes are roots of the class - // linker. - SetFieldPtr(OFFSET_OF_OBJECT_MEMBER(Object, klass_), new_klass, false, false); -} - -inline bool Object::InstanceOf(const Class* klass) const { - DCHECK(klass != NULL); - DCHECK(GetClass() != NULL); - return klass->IsAssignableFrom(GetClass()); -} - -inline bool Object::IsClass() const { - Class* java_lang_Class = GetClass()->GetClass(); - return GetClass() == java_lang_Class; -} - -inline bool Object::IsObjectArray() const { - return IsArrayInstance() && !GetClass()->GetComponentType()->IsPrimitive(); -} - -template<class T> -inline ObjectArray<T>* Object::AsObjectArray() { - DCHECK(IsObjectArray()); - return down_cast<ObjectArray<T>*>(this); -} - -template<class T> -inline const ObjectArray<T>* Object::AsObjectArray() const { - DCHECK(IsObjectArray()); - return down_cast<const ObjectArray<T>*>(this); -} - -inline bool Object::IsArrayInstance() const { - return GetClass()->IsArrayClass(); -} - -inline bool Object::IsField() const { - return GetClass()->IsFieldClass(); -} - -inline bool Object::IsMethod() const { - return GetClass()->IsMethodClass(); -} - -inline bool Object::IsReferenceInstance() const { - return GetClass()->IsReferenceClass(); -} - -inline bool Object::IsWeakReferenceInstance() const { - return GetClass()->IsWeakReferenceClass(); -} - -inline bool Object::IsSoftReferenceInstance() const { - return GetClass()->IsSoftReferenceClass(); -} - -inline bool Object::IsFinalizerReferenceInstance() const { - return GetClass()->IsFinalizerReferenceClass(); -} - -inline bool Object::IsPhantomReferenceInstance() const { - return GetClass()->IsPhantomReferenceClass(); -} - -inline size_t Object::SizeOf() const { - size_t result; - if (IsArrayInstance()) { - result = AsArray()->SizeOf(); - } else if (IsClass()) { - result = AsClass()->SizeOf(); - } else { - result = GetClass()->GetObjectSize(); - } - DCHECK(!IsField() || result == sizeof(Field)); - DCHECK(!IsMethod() || result == sizeof(AbstractMethod)); - return result; -} - -inline Class* Field::GetDeclaringClass() const { - Class* result = GetFieldObject<Class*>(OFFSET_OF_OBJECT_MEMBER(Field, declaring_class_), false); - DCHECK(result != NULL); - DCHECK(result->IsLoaded() || result->IsErroneous()); - return result; -} - -inline void Field::SetDeclaringClass(Class *new_declaring_class) { - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Field, declaring_class_), new_declaring_class, false); -} - -inline Class* AbstractMethod::GetDeclaringClass() const { - Class* result = GetFieldObject<Class*>(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, declaring_class_), false); - DCHECK(result != NULL) << this; - DCHECK(result->IsIdxLoaded() || result->IsErroneous()) << this; - return result; -} - -inline void AbstractMethod::SetDeclaringClass(Class *new_declaring_class) { - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, declaring_class_), new_declaring_class, false); -} - -inline size_t Array::SizeOf() const { - // This is safe from overflow because the array was already allocated, so we know it's sane. - size_t component_size = GetClass()->GetComponentSize(); - int32_t component_count = GetLength(); - size_t header_size = sizeof(Object) + (component_size == sizeof(int64_t) ? 8 : 4); - size_t data_size = component_count * component_size; - return header_size + data_size; -} - -template<class T> -void ObjectArray<T>::Set(int32_t i, T* object) { - if (LIKELY(IsValidIndex(i))) { - if (object != NULL) { - Class* element_class = GetClass()->GetComponentType(); - if (UNLIKELY(!object->InstanceOf(element_class))) { - ThrowArrayStoreException(object); - return; - } - } - MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*)); - SetFieldObject(data_offset, object, false); - } -} - -template<class T> -void ObjectArray<T>::SetWithoutChecks(int32_t i, T* object) { - DCHECK(IsValidIndex(i)); - MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*)); - SetFieldObject(data_offset, object, false); -} - -template<class T> -void ObjectArray<T>::SetPtrWithoutChecks(int32_t i, T* object) { - DCHECK(IsValidIndex(i)); - MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*)); - SetFieldPtr(data_offset, object, false); -} - -template<class T> -T* ObjectArray<T>::GetWithoutChecks(int32_t i) const { - DCHECK(IsValidIndex(i)); - MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*)); - return GetFieldObject<T*>(data_offset, false); -} - -template<class T> -void ObjectArray<T>::Copy(const ObjectArray<T>* src, int src_pos, - ObjectArray<T>* dst, int dst_pos, - size_t length) { - if (src->IsValidIndex(src_pos) && - src->IsValidIndex(src_pos+length-1) && - dst->IsValidIndex(dst_pos) && - dst->IsValidIndex(dst_pos+length-1)) { - MemberOffset src_offset(DataOffset(sizeof(Object*)).Int32Value() + src_pos * sizeof(Object*)); - MemberOffset dst_offset(DataOffset(sizeof(Object*)).Int32Value() + dst_pos * sizeof(Object*)); - Class* array_class = dst->GetClass(); - Heap* heap = Runtime::Current()->GetHeap(); - if (array_class == src->GetClass()) { - // No need for array store checks if arrays are of the same type - for (size_t i = 0; i < length; i++) { - Object* object = src->GetFieldObject<Object*>(src_offset, false); - heap->VerifyObject(object); - // directly set field, we do a bulk write barrier at the end - dst->SetField32(dst_offset, reinterpret_cast<uint32_t>(object), false, true); - src_offset = MemberOffset(src_offset.Uint32Value() + sizeof(Object*)); - dst_offset = MemberOffset(dst_offset.Uint32Value() + sizeof(Object*)); - } - } else { - Class* element_class = array_class->GetComponentType(); - CHECK(!element_class->IsPrimitive()); - for (size_t i = 0; i < length; i++) { - Object* object = src->GetFieldObject<Object*>(src_offset, false); - if (object != NULL && !object->InstanceOf(element_class)) { - dst->ThrowArrayStoreException(object); - return; - } - heap->VerifyObject(object); - // directly set field, we do a bulk write barrier at the end - dst->SetField32(dst_offset, reinterpret_cast<uint32_t>(object), false, true); - src_offset = MemberOffset(src_offset.Uint32Value() + sizeof(Object*)); - dst_offset = MemberOffset(dst_offset.Uint32Value() + sizeof(Object*)); - } - } - heap->WriteBarrierArray(dst, dst_pos, length); - } -} - -inline void IfTable::SetInterface(int32_t i, Class* interface) { - DCHECK(interface != NULL); - DCHECK(interface->IsInterface()); - DCHECK(Get((i * kMax) + kInterface) == NULL); - Set((i * kMax) + kInterface, interface); -} - -class MANAGED ClassClass : public Class { - private: - int32_t padding_; - int64_t serialVersionUID_; - friend struct ClassClassOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(ClassClass); -}; - -class MANAGED StringClass : public Class { - private: - CharArray* ASCII_; - Object* CASE_INSENSITIVE_ORDER_; - uint32_t REPLACEMENT_CHAR_; - int64_t serialVersionUID_; - friend struct StringClassOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(StringClass); -}; - -class MANAGED FieldClass : public Class { - private: - Object* ORDER_BY_NAME_AND_DECLARING_CLASS_; - friend struct FieldClassOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(FieldClass); -}; - -class MANAGED MethodClass : public Class { - private: - Object* ORDER_BY_SIGNATURE_; - friend struct MethodClassOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(MethodClass); -}; - -template<class T> -class MANAGED PrimitiveArray : public Array { - public: - typedef T ElementType; - - static PrimitiveArray<T>* Alloc(Thread* self, size_t length) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - const T* GetData() const { - intptr_t data = reinterpret_cast<intptr_t>(this) + DataOffset(sizeof(T)).Int32Value(); - return reinterpret_cast<T*>(data); - } - - T* GetData() { - intptr_t data = reinterpret_cast<intptr_t>(this) + DataOffset(sizeof(T)).Int32Value(); - return reinterpret_cast<T*>(data); - } - - T Get(int32_t i) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - if (!IsValidIndex(i)) { - return T(0); - } - return GetData()[i]; - } - - void Set(int32_t i, T value) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - if (IsValidIndex(i)) { - GetData()[i] = value; - } - } - - static void SetArrayClass(Class* array_class) { - CHECK(array_class_ == NULL); - CHECK(array_class != NULL); - array_class_ = array_class; - } - - static void ResetArrayClass() { - CHECK(array_class_ != NULL); - array_class_ = NULL; - } - - private: - static Class* array_class_; - - DISALLOW_IMPLICIT_CONSTRUCTORS(PrimitiveArray); -}; - -// C++ mirror of java.lang.String -class MANAGED String : public Object { - public: - static MemberOffset CountOffset() { - return OFFSET_OF_OBJECT_MEMBER(String, count_); - } - - static MemberOffset ValueOffset() { - return OFFSET_OF_OBJECT_MEMBER(String, array_); - } - - static MemberOffset OffsetOffset() { - return OFFSET_OF_OBJECT_MEMBER(String, offset_); - } - - const CharArray* GetCharArray() const { - return GetFieldObject<const CharArray*>(ValueOffset(), false); - } - - int32_t GetOffset() const { - int32_t result = GetField32(OffsetOffset(), false); - DCHECK_LE(0, result); - return result; - } - - int32_t GetLength() const; - - int32_t GetHashCode() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - void ComputeHashCode() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - SetHashCode(ComputeUtf16Hash(GetCharArray(), GetOffset(), GetLength())); - } - - int32_t GetUtfLength() const { - return CountUtf8Bytes(GetCharArray()->GetData() + GetOffset(), GetLength()); - } - - uint16_t CharAt(int32_t index) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - String* Intern() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static String* AllocFromUtf16(Thread* self, - int32_t utf16_length, - const uint16_t* utf16_data_in, - int32_t hash_code = 0) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static String* AllocFromModifiedUtf8(Thread* self, const char* utf) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static String* AllocFromModifiedUtf8(Thread* self, int32_t utf16_length, - const char* utf8_data_in) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static String* Alloc(Thread* self, Class* java_lang_String, int32_t utf16_length) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static String* Alloc(Thread* self, Class* java_lang_String, CharArray* array) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - bool Equals(const char* modified_utf8) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // TODO: do we need this overload? give it a more intention-revealing name. - bool Equals(const StringPiece& modified_utf8) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - bool Equals(const String* that) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Compare UTF-16 code point values not in a locale-sensitive manner - int Compare(int32_t utf16_length, const char* utf8_data_in); - - // TODO: do we need this overload? give it a more intention-revealing name. - bool Equals(const uint16_t* that_chars, int32_t that_offset, - int32_t that_length) const - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // Create a modified UTF-8 encoded std::string from a java/lang/String object. - std::string ToModifiedUtf8() const; - - int32_t FastIndexOf(int32_t ch, int32_t start) { - int32_t count = GetLength(); - if (start < 0) { - start = 0; - } else if (start > count) { - start = count; - } - const uint16_t* chars = GetCharArray()->GetData() + GetOffset(); - const uint16_t* p = chars + start; - const uint16_t* end = chars + count; - while (p < end) { - if (*p++ == ch) { - return (p - 1) - chars; - } - } - return -1; - } - - int32_t CompareTo(String* other) const; - - static Class* GetJavaLangString() { - DCHECK(java_lang_String_ != NULL); - return java_lang_String_; - } - - static void SetClass(Class* java_lang_String); - static void ResetClass(); - - private: - void SetHashCode(int32_t new_hash_code) { - DCHECK_EQ(0u, - GetField32(OFFSET_OF_OBJECT_MEMBER(String, hash_code_), false)); - SetField32(OFFSET_OF_OBJECT_MEMBER(String, hash_code_), - new_hash_code, false); - } - - void SetCount(int32_t new_count) { - DCHECK_LE(0, new_count); - SetField32(OFFSET_OF_OBJECT_MEMBER(String, count_), new_count, false); - } - - void SetOffset(int32_t new_offset) { - DCHECK_LE(0, new_offset); - DCHECK_GE(GetLength(), new_offset); - SetField32(OFFSET_OF_OBJECT_MEMBER(String, offset_), new_offset, false); - } - - void SetArray(CharArray* new_array) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - DCHECK(new_array != NULL); - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(String, array_), new_array, false); - } - - // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". - CharArray* array_; - - int32_t count_; - - uint32_t hash_code_; - - int32_t offset_; - - static Class* java_lang_String_; - - friend struct StringOffsets; // for verifying offset information - FRIEND_TEST(ObjectTest, StringLength); // for SetOffset and SetCount - DISALLOW_IMPLICIT_CONSTRUCTORS(String); -}; - -// TODO: remove? only used in a unit test of itself. -struct StringHashCode { - int32_t operator()(String* string) const { - return string->GetHashCode(); - } -}; - -inline uint32_t Field::GetAccessFlags() const { - DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous()); - return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, access_flags_), false); -} - -inline MemberOffset Field::GetOffset() const { - DCHECK(GetDeclaringClass()->IsResolved() || GetDeclaringClass()->IsErroneous()); - return MemberOffset(GetField32(OFFSET_OF_OBJECT_MEMBER(Field, offset_), false)); -} - -inline MemberOffset Field::GetOffsetDuringLinking() const { - DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous()); - return MemberOffset(GetField32(OFFSET_OF_OBJECT_MEMBER(Field, offset_), false)); -} - -inline uint32_t Class::GetAccessFlags() const { - // Check class is loaded or this is java.lang.String that has a - // circularity issue during loading the names of its members - DCHECK(IsLoaded() || IsErroneous() || - this == String::GetJavaLangString() || - this == Field::GetJavaLangReflectField() || - this == AbstractMethod::GetConstructorClass() || - this == AbstractMethod::GetMethodClass()); - return GetField32(OFFSET_OF_OBJECT_MEMBER(Class, access_flags_), false); -} - -inline uint32_t AbstractMethod::GetAccessFlags() const { - DCHECK(GetDeclaringClass()->IsIdxLoaded() || GetDeclaringClass()->IsErroneous()); - return GetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, access_flags_), false); -} - -inline uint16_t AbstractMethod::GetMethodIndex() const { - DCHECK(GetDeclaringClass()->IsResolved() || GetDeclaringClass()->IsErroneous()); - return GetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, method_index_), false); -} - -inline uint32_t AbstractMethod::GetDexMethodIndex() const { - DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous()); - return GetField32(OFFSET_OF_OBJECT_MEMBER(AbstractMethod, method_dex_index_), false); -} - -inline bool AbstractMethod::CheckIncompatibleClassChange(InvokeType type) { - switch (type) { - case kStatic: - return !IsStatic(); - case kDirect: - return !IsDirect() || IsStatic(); - case kVirtual: { - Class* methods_class = GetDeclaringClass(); - return IsDirect() || (methods_class->IsInterface() && !IsMiranda()); - } - case kSuper: - return false; // TODO: appropriate checks for call to super class. - case kInterface: { - Class* methods_class = GetDeclaringClass(); - return IsDirect() || !(methods_class->IsInterface() || methods_class->IsObjectClass()); - } - default: - LOG(FATAL) << "Unreachable - invocation type: " << type; - return true; - } -} - -inline void AbstractMethod::AssertPcIsWithinCode(uintptr_t pc) const { - if (!kIsDebugBuild) { - return; - } - if (IsNative() || IsRuntimeMethod() || IsProxyMethod()) { - return; - } - Runtime* runtime = Runtime::Current(); - if (GetCode() == runtime->GetResolutionStubArray(Runtime::kStaticMethod)->GetData()) { - return; - } - DCHECK(IsWithinCode(pc)) - << PrettyMethod(this) - << " pc=" << std::hex << pc - << " code=" << GetCode() - << " size=" << GetCodeSize(); -} - -inline String* Class::GetName() const { - return GetFieldObject<String*>(OFFSET_OF_OBJECT_MEMBER(Class, name_), false); -} -inline void Class::SetName(String* name) { - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Class, name_), name, false); -} - -// C++ mirror of java.lang.Throwable -class MANAGED Throwable : public Object { - public: - void SetDetailMessage(String* new_detail_message) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { - SetFieldObject(OFFSET_OF_OBJECT_MEMBER(Throwable, detail_message_), new_detail_message, false); - } - String* GetDetailMessage() const { - return GetFieldObject<String*>(OFFSET_OF_OBJECT_MEMBER(Throwable, detail_message_), false); - } - std::string Dump() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - // This is a runtime version of initCause, you shouldn't use it if initCause may have been - // overridden. Also it asserts rather than throwing exceptions. Currently this is only used - // in cases like the verifier where the checks cannot fail and initCause isn't overridden. - void SetCause(Throwable* cause) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - bool IsCheckedException() const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static Class* GetJavaLangThrowable() { - DCHECK(java_lang_Throwable_ != NULL); - return java_lang_Throwable_; - } - - static void SetClass(Class* java_lang_Throwable); - static void ResetClass(); - - private: - Object* GetStackState() const { - return GetFieldObject<Object*>(OFFSET_OF_OBJECT_MEMBER(Throwable, stack_state_), true); - } - - // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". - Throwable* cause_; - String* detail_message_; - Object* stack_state_; // Note this is Java volatile: - Object* stack_trace_; - Object* suppressed_exceptions_; - - static Class* java_lang_Throwable_; - - friend struct ThrowableOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(Throwable); -}; - -// C++ mirror of java.lang.StackTraceElement -class MANAGED StackTraceElement : public Object { - public: - const String* GetDeclaringClass() const { - return GetFieldObject<const String*>( - OFFSET_OF_OBJECT_MEMBER(StackTraceElement, declaring_class_), false); - } - - const String* GetMethodName() const { - return GetFieldObject<const String*>( - OFFSET_OF_OBJECT_MEMBER(StackTraceElement, method_name_), false); - } - - const String* GetFileName() const { - return GetFieldObject<const String*>( - OFFSET_OF_OBJECT_MEMBER(StackTraceElement, file_name_), false); - } - - int32_t GetLineNumber() const { - return GetField32( - OFFSET_OF_OBJECT_MEMBER(StackTraceElement, line_number_), false); - } - - static StackTraceElement* Alloc(Thread* self, - String* declaring_class, - String* method_name, - String* file_name, - int32_t line_number) - SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); - - static void SetClass(Class* java_lang_StackTraceElement); - - static void ResetClass(); - - private: - // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". - String* declaring_class_; - String* file_name_; - String* method_name_; - int32_t line_number_; - - static Class* GetStackTraceElement() { - DCHECK(java_lang_StackTraceElement_ != NULL); - return java_lang_StackTraceElement_; - } - - static Class* java_lang_StackTraceElement_; - - friend struct StackTraceElementOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(StackTraceElement); -}; - -class MANAGED SynthesizedProxyClass : public Class { - public: - ObjectArray<Class>* GetInterfaces() { - return interfaces_; - } - - ObjectArray<ObjectArray<Class> >* GetThrows() { - return throws_; - } - - private: - ObjectArray<Class>* interfaces_; - ObjectArray<ObjectArray<Class> >* throws_; - DISALLOW_IMPLICIT_CONSTRUCTORS(SynthesizedProxyClass); -}; - -class MANAGED Proxy : public Object { - private: - Object* h_; - - friend struct ProxyOffsets; // for verifying offset information - DISALLOW_IMPLICIT_CONSTRUCTORS(Proxy); -}; - -} // namespace art - -#endif // ART_SRC_OBJECT_H_ |