| /* |
| * 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 "UniquePtr.h" |
| #include "atomic.h" |
| #include "base/macros.h" |
| #include "casts.h" |
| #include "globals.h" |
| #include "heap.h" |
| #include "invoke_type.h" |
| #include "logging.h" |
| #include "modifiers.h" |
| #include "offsets.h" |
| #include "primitive.h" |
| #include "runtime.h" |
| #include "stringpiece.h" |
| #include "thread.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 { |
| // We default initialize JValue instances to all-zeros. |
| JValue() : j(0) {} |
| |
| int8_t GetB() const { return b; } |
| void SetB(int8_t new_b) { |
| i = ((static_cast<int32_t>(new_b) << 24) >> 24); // Sign-extend. |
| } |
| |
| uint16_t GetC() const { return c; } |
| void SetC(uint16_t new_c) { c = new_c; } |
| |
| double GetD() const { return d; } |
| void SetD(double new_d) { d = new_d; } |
| |
| float GetF() const { return f; } |
| void SetF(float new_f) { f = new_f; } |
| |
| int32_t GetI() const { return i; } |
| void SetI(int32_t new_i) { i = new_i; } |
| |
| int64_t GetJ() const { return j; } |
| void SetJ(int64_t new_j) { j = new_j; } |
| |
| Object* GetL() const { return l; } |
| void SetL(Object* new_l) { l = new_l; } |
| |
| int16_t GetS() const { return s; } |
| void SetS(int16_t new_s) { |
| i = ((static_cast<int32_t>(new_s) << 16) >> 16); // Sign-extend. |
| } |
| |
| uint8_t GetZ() const { return z; } |
| void SetZ(uint8_t new_z) { z = new_z; } |
| |
| private: |
| uint8_t z; |
| int8_t b; |
| uint16_t c; |
| int16_t s; |
| int32_t i; |
| int64_t j; |
| float f; |
| double d; |
| Object* l; |
| }; |
| |
| #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(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::Swap64(new_value, addr); |
| // 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<Class>* 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_ |