| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "interpreter_common.h" |
| |
| #include <cmath> |
| |
| #include "base/enums.h" |
| #include "debugger.h" |
| #include "entrypoints/runtime_asm_entrypoints.h" |
| #include "jit/jit.h" |
| #include "jvalue.h" |
| #include "method_handles.h" |
| #include "method_handles-inl.h" |
| #include "mirror/array-inl.h" |
| #include "mirror/class.h" |
| #include "mirror/emulated_stack_frame.h" |
| #include "mirror/method_handle_impl.h" |
| #include "reflection.h" |
| #include "reflection-inl.h" |
| #include "stack.h" |
| #include "unstarted_runtime.h" |
| #include "verifier/method_verifier.h" |
| #include "well_known_classes.h" |
| |
| namespace art { |
| namespace interpreter { |
| |
| void ThrowNullPointerExceptionFromInterpreter() { |
| ThrowNullPointerExceptionFromDexPC(); |
| } |
| |
| template<Primitive::Type field_type> |
| static ALWAYS_INLINE void DoFieldGetCommon(Thread* self, |
| const ShadowFrame& shadow_frame, |
| ObjPtr<mirror::Object>& obj, |
| ArtField* field, |
| JValue* result) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| field->GetDeclaringClass()->AssertInitializedOrInitializingInThread(self); |
| |
| // Report this field access to instrumentation if needed. |
| instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| if (UNLIKELY(instrumentation->HasFieldReadListeners())) { |
| StackHandleScope<1> hs(self); |
| // Wrap in handle wrapper in case the listener does thread suspension. |
| HandleWrapperObjPtr<mirror::Object> h(hs.NewHandleWrapper(&obj)); |
| ObjPtr<mirror::Object> this_object; |
| if (!field->IsStatic()) { |
| this_object = obj; |
| } |
| instrumentation->FieldReadEvent(self, |
| this_object.Ptr(), |
| shadow_frame.GetMethod(), |
| shadow_frame.GetDexPC(), |
| field); |
| } |
| |
| switch (field_type) { |
| case Primitive::kPrimBoolean: |
| result->SetZ(field->GetBoolean(obj)); |
| break; |
| case Primitive::kPrimByte: |
| result->SetB(field->GetByte(obj)); |
| break; |
| case Primitive::kPrimChar: |
| result->SetC(field->GetChar(obj)); |
| break; |
| case Primitive::kPrimShort: |
| result->SetS(field->GetShort(obj)); |
| break; |
| case Primitive::kPrimInt: |
| result->SetI(field->GetInt(obj)); |
| break; |
| case Primitive::kPrimLong: |
| result->SetJ(field->GetLong(obj)); |
| break; |
| case Primitive::kPrimNot: |
| result->SetL(field->GetObject(obj)); |
| break; |
| default: |
| LOG(FATAL) << "Unreachable: " << field_type; |
| UNREACHABLE(); |
| } |
| } |
| |
| template<FindFieldType find_type, Primitive::Type field_type, bool do_access_check> |
| bool DoFieldGet(Thread* self, ShadowFrame& shadow_frame, const Instruction* inst, |
| uint16_t inst_data) { |
| const bool is_static = (find_type == StaticObjectRead) || (find_type == StaticPrimitiveRead); |
| const uint32_t field_idx = is_static ? inst->VRegB_21c() : inst->VRegC_22c(); |
| ArtField* f = |
| FindFieldFromCode<find_type, do_access_check>(field_idx, shadow_frame.GetMethod(), self, |
| Primitive::ComponentSize(field_type)); |
| if (UNLIKELY(f == nullptr)) { |
| CHECK(self->IsExceptionPending()); |
| return false; |
| } |
| ObjPtr<mirror::Object> obj; |
| if (is_static) { |
| obj = f->GetDeclaringClass(); |
| } else { |
| obj = shadow_frame.GetVRegReference(inst->VRegB_22c(inst_data)); |
| if (UNLIKELY(obj == nullptr)) { |
| ThrowNullPointerExceptionForFieldAccess(f, true); |
| return false; |
| } |
| } |
| |
| JValue result; |
| DoFieldGetCommon<field_type>(self, shadow_frame, obj, f, &result); |
| uint32_t vregA = is_static ? inst->VRegA_21c(inst_data) : inst->VRegA_22c(inst_data); |
| switch (field_type) { |
| case Primitive::kPrimBoolean: |
| shadow_frame.SetVReg(vregA, result.GetZ()); |
| break; |
| case Primitive::kPrimByte: |
| shadow_frame.SetVReg(vregA, result.GetB()); |
| break; |
| case Primitive::kPrimChar: |
| shadow_frame.SetVReg(vregA, result.GetC()); |
| break; |
| case Primitive::kPrimShort: |
| shadow_frame.SetVReg(vregA, result.GetS()); |
| break; |
| case Primitive::kPrimInt: |
| shadow_frame.SetVReg(vregA, result.GetI()); |
| break; |
| case Primitive::kPrimLong: |
| shadow_frame.SetVRegLong(vregA, result.GetJ()); |
| break; |
| case Primitive::kPrimNot: |
| shadow_frame.SetVRegReference(vregA, result.GetL()); |
| break; |
| default: |
| LOG(FATAL) << "Unreachable: " << field_type; |
| UNREACHABLE(); |
| } |
| return true; |
| } |
| |
| // Explicitly instantiate all DoFieldGet functions. |
| #define EXPLICIT_DO_FIELD_GET_TEMPLATE_DECL(_find_type, _field_type, _do_check) \ |
| template bool DoFieldGet<_find_type, _field_type, _do_check>(Thread* self, \ |
| ShadowFrame& shadow_frame, \ |
| const Instruction* inst, \ |
| uint16_t inst_data) |
| |
| #define EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(_find_type, _field_type) \ |
| EXPLICIT_DO_FIELD_GET_TEMPLATE_DECL(_find_type, _field_type, false); \ |
| EXPLICIT_DO_FIELD_GET_TEMPLATE_DECL(_find_type, _field_type, true); |
| |
| // iget-XXX |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimBoolean) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimByte) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimChar) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimShort) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimInt) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimLong) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstanceObjectRead, Primitive::kPrimNot) |
| |
| // sget-XXX |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimBoolean) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimByte) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimChar) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimShort) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimInt) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimLong) |
| EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticObjectRead, Primitive::kPrimNot) |
| |
| #undef EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL |
| #undef EXPLICIT_DO_FIELD_GET_TEMPLATE_DECL |
| |
| // Helper for getters in invoke-polymorphic. |
| inline static void DoFieldGetForInvokePolymorphic(Thread* self, |
| const ShadowFrame& shadow_frame, |
| ObjPtr<mirror::Object>& obj, |
| ArtField* field, |
| Primitive::Type field_type, |
| JValue* result) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| switch (field_type) { |
| case Primitive::kPrimBoolean: |
| DoFieldGetCommon<Primitive::kPrimBoolean>(self, shadow_frame, obj, field, result); |
| break; |
| case Primitive::kPrimByte: |
| DoFieldGetCommon<Primitive::kPrimByte>(self, shadow_frame, obj, field, result); |
| break; |
| case Primitive::kPrimChar: |
| DoFieldGetCommon<Primitive::kPrimChar>(self, shadow_frame, obj, field, result); |
| break; |
| case Primitive::kPrimShort: |
| DoFieldGetCommon<Primitive::kPrimShort>(self, shadow_frame, obj, field, result); |
| break; |
| case Primitive::kPrimInt: |
| DoFieldGetCommon<Primitive::kPrimInt>(self, shadow_frame, obj, field, result); |
| break; |
| case Primitive::kPrimLong: |
| DoFieldGetCommon<Primitive::kPrimLong>(self, shadow_frame, obj, field, result); |
| break; |
| case Primitive::kPrimFloat: |
| DoFieldGetCommon<Primitive::kPrimInt>(self, shadow_frame, obj, field, result); |
| break; |
| case Primitive::kPrimDouble: |
| DoFieldGetCommon<Primitive::kPrimLong>(self, shadow_frame, obj, field, result); |
| break; |
| case Primitive::kPrimNot: |
| DoFieldGetCommon<Primitive::kPrimNot>(self, shadow_frame, obj, field, result); |
| break; |
| case Primitive::kPrimVoid: |
| LOG(FATAL) << "Unreachable: " << field_type; |
| UNREACHABLE(); |
| } |
| } |
| |
| // Handles iget-quick, iget-wide-quick and iget-object-quick instructions. |
| // Returns true on success, otherwise throws an exception and returns false. |
| template<Primitive::Type field_type> |
| bool DoIGetQuick(ShadowFrame& shadow_frame, const Instruction* inst, uint16_t inst_data) { |
| ObjPtr<mirror::Object> obj = shadow_frame.GetVRegReference(inst->VRegB_22c(inst_data)); |
| if (UNLIKELY(obj == nullptr)) { |
| // We lost the reference to the field index so we cannot get a more |
| // precised exception message. |
| ThrowNullPointerExceptionFromDexPC(); |
| return false; |
| } |
| MemberOffset field_offset(inst->VRegC_22c()); |
| // Report this field access to instrumentation if needed. Since we only have the offset of |
| // the field from the base of the object, we need to look for it first. |
| instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| if (UNLIKELY(instrumentation->HasFieldReadListeners())) { |
| ArtField* f = ArtField::FindInstanceFieldWithOffset(obj->GetClass(), |
| field_offset.Uint32Value()); |
| DCHECK(f != nullptr); |
| DCHECK(!f->IsStatic()); |
| StackHandleScope<1> hs(Thread::Current()); |
| // Save obj in case the instrumentation event has thread suspension. |
| HandleWrapperObjPtr<mirror::Object> h = hs.NewHandleWrapper(&obj); |
| instrumentation->FieldReadEvent(Thread::Current(), |
| obj.Ptr(), |
| shadow_frame.GetMethod(), |
| shadow_frame.GetDexPC(), |
| f); |
| } |
| // Note: iget-x-quick instructions are only for non-volatile fields. |
| const uint32_t vregA = inst->VRegA_22c(inst_data); |
| switch (field_type) { |
| case Primitive::kPrimInt: |
| shadow_frame.SetVReg(vregA, static_cast<int32_t>(obj->GetField32(field_offset))); |
| break; |
| case Primitive::kPrimBoolean: |
| shadow_frame.SetVReg(vregA, static_cast<int32_t>(obj->GetFieldBoolean(field_offset))); |
| break; |
| case Primitive::kPrimByte: |
| shadow_frame.SetVReg(vregA, static_cast<int32_t>(obj->GetFieldByte(field_offset))); |
| break; |
| case Primitive::kPrimChar: |
| shadow_frame.SetVReg(vregA, static_cast<int32_t>(obj->GetFieldChar(field_offset))); |
| break; |
| case Primitive::kPrimShort: |
| shadow_frame.SetVReg(vregA, static_cast<int32_t>(obj->GetFieldShort(field_offset))); |
| break; |
| case Primitive::kPrimLong: |
| shadow_frame.SetVRegLong(vregA, static_cast<int64_t>(obj->GetField64(field_offset))); |
| break; |
| case Primitive::kPrimNot: |
| shadow_frame.SetVRegReference(vregA, obj->GetFieldObject<mirror::Object>(field_offset)); |
| break; |
| default: |
| LOG(FATAL) << "Unreachable: " << field_type; |
| UNREACHABLE(); |
| } |
| return true; |
| } |
| |
| // Explicitly instantiate all DoIGetQuick functions. |
| #define EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(_field_type) \ |
| template bool DoIGetQuick<_field_type>(ShadowFrame& shadow_frame, const Instruction* inst, \ |
| uint16_t inst_data) |
| |
| EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(Primitive::kPrimInt); // iget-quick. |
| EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(Primitive::kPrimBoolean); // iget-boolean-quick. |
| EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(Primitive::kPrimByte); // iget-byte-quick. |
| EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(Primitive::kPrimChar); // iget-char-quick. |
| EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(Primitive::kPrimShort); // iget-short-quick. |
| EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(Primitive::kPrimLong); // iget-wide-quick. |
| EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(Primitive::kPrimNot); // iget-object-quick. |
| #undef EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL |
| |
| static JValue GetFieldValue(const ShadowFrame& shadow_frame, |
| Primitive::Type field_type, |
| uint32_t vreg) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| JValue field_value; |
| switch (field_type) { |
| case Primitive::kPrimBoolean: |
| field_value.SetZ(static_cast<uint8_t>(shadow_frame.GetVReg(vreg))); |
| break; |
| case Primitive::kPrimByte: |
| field_value.SetB(static_cast<int8_t>(shadow_frame.GetVReg(vreg))); |
| break; |
| case Primitive::kPrimChar: |
| field_value.SetC(static_cast<uint16_t>(shadow_frame.GetVReg(vreg))); |
| break; |
| case Primitive::kPrimShort: |
| field_value.SetS(static_cast<int16_t>(shadow_frame.GetVReg(vreg))); |
| break; |
| case Primitive::kPrimInt: |
| case Primitive::kPrimFloat: |
| field_value.SetI(shadow_frame.GetVReg(vreg)); |
| break; |
| case Primitive::kPrimLong: |
| case Primitive::kPrimDouble: |
| field_value.SetJ(shadow_frame.GetVRegLong(vreg)); |
| break; |
| case Primitive::kPrimNot: |
| field_value.SetL(shadow_frame.GetVRegReference(vreg)); |
| break; |
| case Primitive::kPrimVoid: |
| LOG(FATAL) << "Unreachable: " << field_type; |
| UNREACHABLE(); |
| } |
| return field_value; |
| } |
| |
| template<Primitive::Type field_type> |
| static JValue GetFieldValue(const ShadowFrame& shadow_frame, uint32_t vreg) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| JValue field_value; |
| switch (field_type) { |
| case Primitive::kPrimBoolean: |
| field_value.SetZ(static_cast<uint8_t>(shadow_frame.GetVReg(vreg))); |
| break; |
| case Primitive::kPrimByte: |
| field_value.SetB(static_cast<int8_t>(shadow_frame.GetVReg(vreg))); |
| break; |
| case Primitive::kPrimChar: |
| field_value.SetC(static_cast<uint16_t>(shadow_frame.GetVReg(vreg))); |
| break; |
| case Primitive::kPrimShort: |
| field_value.SetS(static_cast<int16_t>(shadow_frame.GetVReg(vreg))); |
| break; |
| case Primitive::kPrimInt: |
| field_value.SetI(shadow_frame.GetVReg(vreg)); |
| break; |
| case Primitive::kPrimLong: |
| field_value.SetJ(shadow_frame.GetVRegLong(vreg)); |
| break; |
| case Primitive::kPrimNot: |
| field_value.SetL(shadow_frame.GetVRegReference(vreg)); |
| break; |
| default: |
| LOG(FATAL) << "Unreachable: " << field_type; |
| UNREACHABLE(); |
| } |
| return field_value; |
| } |
| |
| template<Primitive::Type field_type, bool do_assignability_check, bool transaction_active> |
| static inline bool DoFieldPutCommon(Thread* self, |
| const ShadowFrame& shadow_frame, |
| ObjPtr<mirror::Object>& obj, |
| ArtField* f, |
| const JValue& value) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| f->GetDeclaringClass()->AssertInitializedOrInitializingInThread(self); |
| |
| // Report this field access to instrumentation if needed. Since we only have the offset of |
| // the field from the base of the object, we need to look for it first. |
| instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| if (UNLIKELY(instrumentation->HasFieldWriteListeners())) { |
| StackHandleScope<1> hs(self); |
| // Wrap in handle wrapper in case the listener does thread suspension. |
| HandleWrapperObjPtr<mirror::Object> h(hs.NewHandleWrapper(&obj)); |
| ObjPtr<mirror::Object> this_object = f->IsStatic() ? nullptr : obj; |
| instrumentation->FieldWriteEvent(self, this_object.Ptr(), |
| shadow_frame.GetMethod(), |
| shadow_frame.GetDexPC(), |
| f, |
| value); |
| } |
| |
| switch (field_type) { |
| case Primitive::kPrimBoolean: |
| f->SetBoolean<transaction_active>(obj, value.GetZ()); |
| break; |
| case Primitive::kPrimByte: |
| f->SetByte<transaction_active>(obj, value.GetB()); |
| break; |
| case Primitive::kPrimChar: |
| f->SetChar<transaction_active>(obj, value.GetC()); |
| break; |
| case Primitive::kPrimShort: |
| f->SetShort<transaction_active>(obj, value.GetS()); |
| break; |
| case Primitive::kPrimInt: |
| f->SetInt<transaction_active>(obj, value.GetI()); |
| break; |
| case Primitive::kPrimLong: |
| f->SetLong<transaction_active>(obj, value.GetJ()); |
| break; |
| case Primitive::kPrimNot: { |
| ObjPtr<mirror::Object> reg = value.GetL(); |
| if (do_assignability_check && reg != nullptr) { |
| // FieldHelper::GetType can resolve classes, use a handle wrapper which will restore the |
| // object in the destructor. |
| ObjPtr<mirror::Class> field_class; |
| { |
| StackHandleScope<2> hs(self); |
| HandleWrapperObjPtr<mirror::Object> h_reg(hs.NewHandleWrapper(®)); |
| HandleWrapperObjPtr<mirror::Object> h_obj(hs.NewHandleWrapper(&obj)); |
| field_class = f->GetType<true>(); |
| } |
| if (!reg->VerifierInstanceOf(field_class.Ptr())) { |
| // This should never happen. |
| std::string temp1, temp2, temp3; |
| self->ThrowNewExceptionF("Ljava/lang/VirtualMachineError;", |
| "Put '%s' that is not instance of field '%s' in '%s'", |
| reg->GetClass()->GetDescriptor(&temp1), |
| field_class->GetDescriptor(&temp2), |
| f->GetDeclaringClass()->GetDescriptor(&temp3)); |
| return false; |
| } |
| } |
| f->SetObj<transaction_active>(obj, reg); |
| break; |
| } |
| default: |
| LOG(FATAL) << "Unreachable: " << field_type; |
| UNREACHABLE(); |
| } |
| return true; |
| } |
| |
| template<FindFieldType find_type, Primitive::Type field_type, bool do_access_check, |
| bool transaction_active> |
| bool DoFieldPut(Thread* self, const ShadowFrame& shadow_frame, const Instruction* inst, |
| uint16_t inst_data) { |
| const bool do_assignability_check = do_access_check; |
| bool is_static = (find_type == StaticObjectWrite) || (find_type == StaticPrimitiveWrite); |
| uint32_t field_idx = is_static ? inst->VRegB_21c() : inst->VRegC_22c(); |
| ArtField* f = |
| FindFieldFromCode<find_type, do_access_check>(field_idx, shadow_frame.GetMethod(), self, |
| Primitive::ComponentSize(field_type)); |
| if (UNLIKELY(f == nullptr)) { |
| CHECK(self->IsExceptionPending()); |
| return false; |
| } |
| ObjPtr<mirror::Object> obj; |
| if (is_static) { |
| obj = f->GetDeclaringClass(); |
| } else { |
| obj = shadow_frame.GetVRegReference(inst->VRegB_22c(inst_data)); |
| if (UNLIKELY(obj == nullptr)) { |
| ThrowNullPointerExceptionForFieldAccess(f, false); |
| return false; |
| } |
| } |
| |
| uint32_t vregA = is_static ? inst->VRegA_21c(inst_data) : inst->VRegA_22c(inst_data); |
| JValue value = GetFieldValue<field_type>(shadow_frame, vregA); |
| return DoFieldPutCommon<field_type, do_assignability_check, transaction_active>(self, |
| shadow_frame, |
| obj, |
| f, |
| value); |
| } |
| |
| // Explicitly instantiate all DoFieldPut functions. |
| #define EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL(_find_type, _field_type, _do_check, _transaction_active) \ |
| template bool DoFieldPut<_find_type, _field_type, _do_check, _transaction_active>(Thread* self, \ |
| const ShadowFrame& shadow_frame, const Instruction* inst, uint16_t inst_data) |
| |
| #define EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(_find_type, _field_type) \ |
| EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL(_find_type, _field_type, false, false); \ |
| EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL(_find_type, _field_type, true, false); \ |
| EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL(_find_type, _field_type, false, true); \ |
| EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL(_find_type, _field_type, true, true); |
| |
| // iput-XXX |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimBoolean) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimByte) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimChar) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimShort) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimInt) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimLong) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstanceObjectWrite, Primitive::kPrimNot) |
| |
| // sput-XXX |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimBoolean) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimByte) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimChar) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimShort) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimInt) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimLong) |
| EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticObjectWrite, Primitive::kPrimNot) |
| |
| #undef EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL |
| #undef EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL |
| |
| // Helper for setters in invoke-polymorphic. |
| bool DoFieldPutForInvokePolymorphic(Thread* self, |
| ShadowFrame& shadow_frame, |
| ObjPtr<mirror::Object>& obj, |
| ArtField* field, |
| Primitive::Type field_type, |
| const JValue& value) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| static const bool kDoCheckAssignability = false; |
| static const bool kTransaction = false; |
| switch (field_type) { |
| case Primitive::kPrimBoolean: |
| return DoFieldPutCommon<Primitive::kPrimBoolean, kDoCheckAssignability, kTransaction>( |
| self, shadow_frame, obj, field, value); |
| case Primitive::kPrimByte: |
| return DoFieldPutCommon<Primitive::kPrimByte, kDoCheckAssignability, kTransaction>( |
| self, shadow_frame, obj, field, value); |
| case Primitive::kPrimChar: |
| return DoFieldPutCommon<Primitive::kPrimChar, kDoCheckAssignability, kTransaction>( |
| self, shadow_frame, obj, field, value); |
| case Primitive::kPrimShort: |
| return DoFieldPutCommon<Primitive::kPrimShort, kDoCheckAssignability, kTransaction>( |
| self, shadow_frame, obj, field, value); |
| case Primitive::kPrimInt: |
| case Primitive::kPrimFloat: |
| return DoFieldPutCommon<Primitive::kPrimInt, kDoCheckAssignability, kTransaction>( |
| self, shadow_frame, obj, field, value); |
| case Primitive::kPrimLong: |
| case Primitive::kPrimDouble: |
| return DoFieldPutCommon<Primitive::kPrimLong, kDoCheckAssignability, kTransaction>( |
| self, shadow_frame, obj, field, value); |
| case Primitive::kPrimNot: |
| return DoFieldPutCommon<Primitive::kPrimNot, kDoCheckAssignability, kTransaction>( |
| self, shadow_frame, obj, field, value); |
| case Primitive::kPrimVoid: |
| LOG(FATAL) << "Unreachable: " << field_type; |
| UNREACHABLE(); |
| } |
| } |
| |
| template<Primitive::Type field_type, bool transaction_active> |
| bool DoIPutQuick(const ShadowFrame& shadow_frame, const Instruction* inst, uint16_t inst_data) { |
| ObjPtr<mirror::Object> obj = shadow_frame.GetVRegReference(inst->VRegB_22c(inst_data)); |
| if (UNLIKELY(obj == nullptr)) { |
| // We lost the reference to the field index so we cannot get a more |
| // precised exception message. |
| ThrowNullPointerExceptionFromDexPC(); |
| return false; |
| } |
| MemberOffset field_offset(inst->VRegC_22c()); |
| const uint32_t vregA = inst->VRegA_22c(inst_data); |
| // Report this field modification to instrumentation if needed. Since we only have the offset of |
| // the field from the base of the object, we need to look for it first. |
| instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| if (UNLIKELY(instrumentation->HasFieldWriteListeners())) { |
| ArtField* f = ArtField::FindInstanceFieldWithOffset(obj->GetClass(), |
| field_offset.Uint32Value()); |
| DCHECK(f != nullptr); |
| DCHECK(!f->IsStatic()); |
| JValue field_value = GetFieldValue<field_type>(shadow_frame, vregA); |
| StackHandleScope<1> hs(Thread::Current()); |
| // Save obj in case the instrumentation event has thread suspension. |
| HandleWrapperObjPtr<mirror::Object> h = hs.NewHandleWrapper(&obj); |
| instrumentation->FieldWriteEvent(Thread::Current(), |
| obj.Ptr(), |
| shadow_frame.GetMethod(), |
| shadow_frame.GetDexPC(), |
| f, |
| field_value); |
| } |
| // Note: iput-x-quick instructions are only for non-volatile fields. |
| switch (field_type) { |
| case Primitive::kPrimBoolean: |
| obj->SetFieldBoolean<transaction_active>(field_offset, shadow_frame.GetVReg(vregA)); |
| break; |
| case Primitive::kPrimByte: |
| obj->SetFieldByte<transaction_active>(field_offset, shadow_frame.GetVReg(vregA)); |
| break; |
| case Primitive::kPrimChar: |
| obj->SetFieldChar<transaction_active>(field_offset, shadow_frame.GetVReg(vregA)); |
| break; |
| case Primitive::kPrimShort: |
| obj->SetFieldShort<transaction_active>(field_offset, shadow_frame.GetVReg(vregA)); |
| break; |
| case Primitive::kPrimInt: |
| obj->SetField32<transaction_active>(field_offset, shadow_frame.GetVReg(vregA)); |
| break; |
| case Primitive::kPrimLong: |
| obj->SetField64<transaction_active>(field_offset, shadow_frame.GetVRegLong(vregA)); |
| break; |
| case Primitive::kPrimNot: |
| obj->SetFieldObject<transaction_active>(field_offset, shadow_frame.GetVRegReference(vregA)); |
| break; |
| default: |
| LOG(FATAL) << "Unreachable: " << field_type; |
| UNREACHABLE(); |
| } |
| return true; |
| } |
| |
| // Explicitly instantiate all DoIPutQuick functions. |
| #define EXPLICIT_DO_IPUT_QUICK_TEMPLATE_DECL(_field_type, _transaction_active) \ |
| template bool DoIPutQuick<_field_type, _transaction_active>(const ShadowFrame& shadow_frame, \ |
| const Instruction* inst, \ |
| uint16_t inst_data) |
| |
| #define EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(_field_type) \ |
| EXPLICIT_DO_IPUT_QUICK_TEMPLATE_DECL(_field_type, false); \ |
| EXPLICIT_DO_IPUT_QUICK_TEMPLATE_DECL(_field_type, true); |
| |
| EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimInt) // iput-quick. |
| EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimBoolean) // iput-boolean-quick. |
| EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimByte) // iput-byte-quick. |
| EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimChar) // iput-char-quick. |
| EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimShort) // iput-short-quick. |
| EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimLong) // iput-wide-quick. |
| EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimNot) // iput-object-quick. |
| #undef EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL |
| #undef EXPLICIT_DO_IPUT_QUICK_TEMPLATE_DECL |
| |
| // We accept a null Instrumentation* meaning we must not report anything to the instrumentation. |
| uint32_t FindNextInstructionFollowingException( |
| Thread* self, ShadowFrame& shadow_frame, uint32_t dex_pc, |
| const instrumentation::Instrumentation* instrumentation) { |
| self->VerifyStack(); |
| StackHandleScope<2> hs(self); |
| Handle<mirror::Throwable> exception(hs.NewHandle(self->GetException())); |
| if (instrumentation != nullptr && instrumentation->HasExceptionCaughtListeners() |
| && self->IsExceptionThrownByCurrentMethod(exception.Get())) { |
| instrumentation->ExceptionCaughtEvent(self, exception.Get()); |
| } |
| bool clear_exception = false; |
| uint32_t found_dex_pc = shadow_frame.GetMethod()->FindCatchBlock( |
| hs.NewHandle(exception->GetClass()), dex_pc, &clear_exception); |
| if (found_dex_pc == DexFile::kDexNoIndex && instrumentation != nullptr) { |
| // Exception is not caught by the current method. We will unwind to the |
| // caller. Notify any instrumentation listener. |
| instrumentation->MethodUnwindEvent(self, shadow_frame.GetThisObject(), |
| shadow_frame.GetMethod(), dex_pc); |
| } else { |
| // Exception is caught in the current method. We will jump to the found_dex_pc. |
| if (clear_exception) { |
| self->ClearException(); |
| } |
| } |
| return found_dex_pc; |
| } |
| |
| void UnexpectedOpcode(const Instruction* inst, const ShadowFrame& shadow_frame) { |
| LOG(FATAL) << "Unexpected instruction: " |
| << inst->DumpString(shadow_frame.GetMethod()->GetDexFile()); |
| UNREACHABLE(); |
| } |
| |
| void AbortTransactionF(Thread* self, const char* fmt, ...) { |
| va_list args; |
| va_start(args, fmt); |
| AbortTransactionV(self, fmt, args); |
| va_end(args); |
| } |
| |
| void AbortTransactionV(Thread* self, const char* fmt, va_list args) { |
| CHECK(Runtime::Current()->IsActiveTransaction()); |
| // Constructs abort message. |
| std::string abort_msg; |
| StringAppendV(&abort_msg, fmt, args); |
| // Throws an exception so we can abort the transaction and rollback every change. |
| Runtime::Current()->AbortTransactionAndThrowAbortError(self, abort_msg); |
| } |
| |
| // START DECLARATIONS : |
| // |
| // These additional declarations are required because clang complains |
| // about ALWAYS_INLINE (-Werror, -Wgcc-compat) in definitions. |
| // |
| |
| template <bool is_range, bool do_assignability_check> |
| static ALWAYS_INLINE bool DoCallCommon(ArtMethod* called_method, |
| Thread* self, |
| ShadowFrame& shadow_frame, |
| JValue* result, |
| uint16_t number_of_inputs, |
| uint32_t (&arg)[Instruction::kMaxVarArgRegs], |
| uint32_t vregC) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| template <bool is_range> |
| static ALWAYS_INLINE bool DoCallPolymorphic(ArtMethod* called_method, |
| Handle<mirror::MethodType> callsite_type, |
| Handle<mirror::MethodType> target_type, |
| Thread* self, |
| ShadowFrame& shadow_frame, |
| JValue* result, |
| uint32_t (&arg)[Instruction::kMaxVarArgRegs], |
| uint32_t vregC, |
| const MethodHandleKind handle_kind) |
| REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| template <bool is_range> |
| static ALWAYS_INLINE bool DoCallTransform(ArtMethod* called_method, |
| Handle<mirror::MethodType> callsite_type, |
| Handle<mirror::MethodType> callee_type, |
| Thread* self, |
| ShadowFrame& shadow_frame, |
| Handle<mirror::MethodHandleImpl> receiver, |
| JValue* result, |
| uint32_t (&arg)[Instruction::kMaxVarArgRegs], |
| uint32_t vregC) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| ALWAYS_INLINE void PerformCall(Thread* self, |
| const DexFile::CodeItem* code_item, |
| ArtMethod* caller_method, |
| const size_t first_dest_reg, |
| ShadowFrame* callee_frame, |
| JValue* result) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| template <bool is_range> |
| ALWAYS_INLINE void CopyRegisters(ShadowFrame& caller_frame, |
| ShadowFrame* callee_frame, |
| const uint32_t (&arg)[Instruction::kMaxVarArgRegs], |
| const size_t first_src_reg, |
| const size_t first_dest_reg, |
| const size_t num_regs) REQUIRES_SHARED(Locks::mutator_lock_); |
| |
| // END DECLARATIONS. |
| |
| void ArtInterpreterToCompiledCodeBridge(Thread* self, |
| ArtMethod* caller, |
| const DexFile::CodeItem* code_item, |
| ShadowFrame* shadow_frame, |
| JValue* result) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| ArtMethod* method = shadow_frame->GetMethod(); |
| // Ensure static methods are initialized. |
| if (method->IsStatic()) { |
| ObjPtr<mirror::Class> declaringClass = method->GetDeclaringClass(); |
| if (UNLIKELY(!declaringClass->IsInitialized())) { |
| self->PushShadowFrame(shadow_frame); |
| StackHandleScope<1> hs(self); |
| Handle<mirror::Class> h_class(hs.NewHandle(declaringClass)); |
| if (UNLIKELY(!Runtime::Current()->GetClassLinker()->EnsureInitialized(self, h_class, true, |
| true))) { |
| self->PopShadowFrame(); |
| DCHECK(self->IsExceptionPending()); |
| return; |
| } |
| self->PopShadowFrame(); |
| CHECK(h_class->IsInitializing()); |
| // Reload from shadow frame in case the method moved, this is faster than adding a handle. |
| method = shadow_frame->GetMethod(); |
| } |
| } |
| uint16_t arg_offset = (code_item == nullptr) |
| ? 0 |
| : code_item->registers_size_ - code_item->ins_size_; |
| jit::Jit* jit = Runtime::Current()->GetJit(); |
| if (jit != nullptr && caller != nullptr) { |
| jit->NotifyInterpreterToCompiledCodeTransition(self, caller); |
| } |
| method->Invoke(self, shadow_frame->GetVRegArgs(arg_offset), |
| (shadow_frame->NumberOfVRegs() - arg_offset) * sizeof(uint32_t), |
| result, method->GetInterfaceMethodIfProxy(kRuntimePointerSize)->GetShorty()); |
| } |
| |
| void SetStringInitValueToAllAliases(ShadowFrame* shadow_frame, |
| uint16_t this_obj_vreg, |
| JValue result) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| ObjPtr<mirror::Object> existing = shadow_frame->GetVRegReference(this_obj_vreg); |
| if (existing == nullptr) { |
| // If it's null, we come from compiled code that was deoptimized. Nothing to do, |
| // as the compiler verified there was no alias. |
| // Set the new string result of the StringFactory. |
| shadow_frame->SetVRegReference(this_obj_vreg, result.GetL()); |
| return; |
| } |
| // Set the string init result into all aliases. |
| for (uint32_t i = 0, e = shadow_frame->NumberOfVRegs(); i < e; ++i) { |
| if (shadow_frame->GetVRegReference(i) == existing) { |
| DCHECK_EQ(shadow_frame->GetVRegReference(i), |
| reinterpret_cast<mirror::Object*>(shadow_frame->GetVReg(i))); |
| shadow_frame->SetVRegReference(i, result.GetL()); |
| DCHECK_EQ(shadow_frame->GetVRegReference(i), |
| reinterpret_cast<mirror::Object*>(shadow_frame->GetVReg(i))); |
| } |
| } |
| } |
| |
| inline static bool IsInvokeExact(const DexFile& dex_file, int invoke_method_idx) { |
| // This check uses string comparison as it needs less code and data |
| // to do than fetching the associated ArtMethod from the DexCache |
| // and checking against ArtMethods in the well known classes. The |
| // verifier needs to perform a more rigorous check. |
| const char* method_name = dex_file.GetMethodName(dex_file.GetMethodId(invoke_method_idx)); |
| bool is_invoke_exact = (0 == strcmp(method_name, "invokeExact")); |
| DCHECK(is_invoke_exact || (0 == strcmp(method_name, "invoke"))); |
| return is_invoke_exact; |
| } |
| |
| inline static ObjPtr<mirror::Class> GetAndInitializeDeclaringClass(Thread* self, ArtField* field) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| // Method handle invocations on static fields should ensure class is |
| // initialized. This usually happens when an instance is constructed |
| // or class members referenced, but this is not guaranteed when |
| // looking up method handles. |
| ObjPtr<mirror::Class> klass = field->GetDeclaringClass(); |
| if (UNLIKELY(!klass->IsInitialized())) { |
| StackHandleScope<1> hs(self); |
| HandleWrapperObjPtr<mirror::Class> h(hs.NewHandleWrapper(&klass)); |
| if (!Runtime::Current()->GetClassLinker()->EnsureInitialized(self, h, true, true)) { |
| DCHECK(self->IsExceptionPending()); |
| return nullptr; |
| } |
| } |
| return klass; |
| } |
| |
| template<bool is_range, bool do_access_check> |
| inline bool DoInvokePolymorphic(Thread* self, |
| ShadowFrame& shadow_frame, |
| const Instruction* inst, |
| uint16_t inst_data, |
| JValue* result) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| // Invoke-polymorphic instructions always take a receiver. i.e, they are never static. |
| const uint32_t vRegC = (is_range) ? inst->VRegC_4rcc() : inst->VRegC_45cc(); |
| const int invoke_method_idx = (is_range) ? inst->VRegB_4rcc() : inst->VRegB_45cc(); |
| |
| // Determine if this invocation is MethodHandle.invoke() or |
| // MethodHandle.invokeExact(). |
| bool is_invoke_exact = IsInvokeExact(shadow_frame.GetMethod()->GetDeclaringClass()->GetDexFile(), |
| invoke_method_idx); |
| |
| // The invoke_method_idx here is the name of the signature polymorphic method that |
| // was symbolically invoked in bytecode (say MethodHandle.invoke or MethodHandle.invokeExact) |
| // and not the method that we'll dispatch to in the end. |
| // |
| // TODO(narayan) We'll have to check in the verifier that this is in fact a |
| // signature polymorphic method so that we disallow calls via invoke-polymorphic |
| // to non sig-poly methods. This would also have the side effect of verifying |
| // that vRegC really is a reference type. |
| StackHandleScope<6> hs(self); |
| Handle<mirror::MethodHandleImpl> method_handle(hs.NewHandle( |
| ObjPtr<mirror::MethodHandleImpl>::DownCast( |
| MakeObjPtr(shadow_frame.GetVRegReference(vRegC))))); |
| if (UNLIKELY(method_handle.Get() == nullptr)) { |
| // Note that the invoke type is kVirtual here because a call to a signature |
| // polymorphic method is shaped like a virtual call at the bytecode level. |
| ThrowNullPointerExceptionForMethodAccess(invoke_method_idx, InvokeType::kVirtual); |
| result->SetJ(0); |
| return false; |
| } |
| |
| // The vRegH value gives the index of the proto_id associated with this |
| // signature polymorphic callsite. |
| const uint32_t callsite_proto_id = (is_range) ? inst->VRegH_4rcc() : inst->VRegH_45cc(); |
| |
| // Call through to the classlinker and ask it to resolve the static type associated |
| // with the callsite. This information is stored in the dex cache so it's |
| // guaranteed to be fast after the first resolution. |
| ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| Handle<mirror::Class> caller_class(hs.NewHandle(shadow_frame.GetMethod()->GetDeclaringClass())); |
| Handle<mirror::MethodType> callsite_type(hs.NewHandle(class_linker->ResolveMethodType( |
| caller_class->GetDexFile(), callsite_proto_id, |
| hs.NewHandle<mirror::DexCache>(caller_class->GetDexCache()), |
| hs.NewHandle<mirror::ClassLoader>(caller_class->GetClassLoader())))); |
| |
| // This implies we couldn't resolve one or more types in this method handle. |
| if (UNLIKELY(callsite_type.Get() == nullptr)) { |
| CHECK(self->IsExceptionPending()); |
| result->SetJ(0); |
| return false; |
| } |
| |
| const MethodHandleKind handle_kind = method_handle->GetHandleKind(); |
| Handle<mirror::MethodType> handle_type(hs.NewHandle(method_handle->GetMethodType())); |
| CHECK(handle_type.Get() != nullptr); |
| if (is_invoke_exact) { |
| // We need to check the nominal type of the handle in addition to the |
| // real type. The "nominal" type is present when MethodHandle.asType is |
| // called any handle, and results in the declared type of the handle |
| // changing. |
| ObjPtr<mirror::MethodType> nominal_type(method_handle->GetNominalType()); |
| ObjPtr<mirror::MethodType> check_type(nullptr); |
| if (LIKELY(nominal_type.Ptr() == nullptr)) { |
| check_type.Assign(handle_type.Get()); |
| } else { |
| check_type.Assign(nominal_type.Ptr()); |
| } |
| |
| if (UNLIKELY(!callsite_type->IsExactMatch(check_type.Ptr()))) { |
| ThrowWrongMethodTypeException(check_type.Ptr(), callsite_type.Get()); |
| return false; |
| } |
| } |
| |
| uint32_t arg[Instruction::kMaxVarArgRegs] = {}; |
| uint32_t first_src_reg = 0; |
| if (is_range) { |
| first_src_reg = (inst->VRegC_4rcc() + 1); |
| } else { |
| inst->GetVarArgs(arg, inst_data); |
| arg[0] = arg[1]; |
| arg[1] = arg[2]; |
| arg[2] = arg[3]; |
| arg[3] = arg[4]; |
| arg[4] = 0; |
| first_src_reg = arg[0]; |
| } |
| |
| if (IsInvoke(handle_kind)) { |
| // Get the method we're actually invoking along with the kind of |
| // invoke that is desired. We don't need to perform access checks at this |
| // point because they would have been performed on our behalf at the point |
| // of creation of the method handle. |
| ArtMethod* called_method = method_handle->GetTargetMethod(); |
| CHECK(called_method != nullptr); |
| |
| if (handle_kind == kInvokeVirtual || handle_kind == kInvokeInterface) { |
| // TODO: Unfortunately, we have to postpone dynamic receiver based checks |
| // because the receiver might be cast or might come from an emulated stack |
| // frame, which means that it is unknown at this point. We perform these |
| // checks inside DoCallPolymorphic right before we do the actualy invoke. |
| } else if (handle_kind == kInvokeDirect) { |
| // String constructors are a special case, they are replaced with StringFactory |
| // methods. |
| if (called_method->IsConstructor() && called_method->GetDeclaringClass()->IsStringClass()) { |
| DCHECK(handle_type->GetRType()->IsStringClass()); |
| called_method = WellKnownClasses::StringInitToStringFactory(called_method); |
| } |
| } else if (handle_kind == kInvokeSuper) { |
| ObjPtr<mirror::Class> declaring_class = called_method->GetDeclaringClass(); |
| |
| // Note that we're not dynamically dispatching on the type of the receiver |
| // here. We use the static type of the "receiver" object that we've |
| // recorded in the method handle's type, which will be the same as the |
| // special caller that was specified at the point of lookup. |
| ObjPtr<mirror::Class> referrer_class = handle_type->GetPTypes()->Get(0); |
| if (!declaring_class->IsInterface()) { |
| ObjPtr<mirror::Class> super_class = referrer_class->GetSuperClass(); |
| uint16_t vtable_index = called_method->GetMethodIndex(); |
| DCHECK(super_class != nullptr); |
| DCHECK(super_class->HasVTable()); |
| // Note that super_class is a super of referrer_class and called_method |
| // will always be declared by super_class (or one of its super classes). |
| DCHECK_LT(vtable_index, super_class->GetVTableLength()); |
| called_method = super_class->GetVTableEntry(vtable_index, kRuntimePointerSize); |
| } else { |
| called_method = referrer_class->FindVirtualMethodForInterfaceSuper( |
| called_method, kRuntimePointerSize); |
| } |
| |
| CHECK(called_method != nullptr); |
| } |
| |
| if (handle_kind == kInvokeTransform) { |
| return DoCallTransform<is_range>(called_method, |
| callsite_type, |
| handle_type, |
| self, |
| shadow_frame, |
| method_handle /* receiver */, |
| result, |
| arg, |
| first_src_reg); |
| } else { |
| return DoCallPolymorphic<is_range>(called_method, |
| callsite_type, |
| handle_type, |
| self, |
| shadow_frame, |
| result, |
| arg, |
| first_src_reg, |
| handle_kind); |
| } |
| } else { |
| DCHECK(!is_range); |
| ArtField* field = method_handle->GetTargetField(); |
| Primitive::Type field_type = field->GetTypeAsPrimitiveType();; |
| |
| if (!is_invoke_exact) { |
| if (handle_type->GetPTypes()->GetLength() != callsite_type->GetPTypes()->GetLength()) { |
| // Too many arguments to setter or getter. |
| ThrowWrongMethodTypeException(callsite_type.Get(), handle_type.Get()); |
| return false; |
| } |
| } |
| |
| switch (handle_kind) { |
| case kInstanceGet: { |
| ObjPtr<mirror::Object> obj = shadow_frame.GetVRegReference(first_src_reg); |
| DoFieldGetForInvokePolymorphic(self, shadow_frame, obj, field, field_type, result); |
| if (!ConvertReturnValue(callsite_type, handle_type, result)) { |
| DCHECK(self->IsExceptionPending()); |
| return false; |
| } |
| return true; |
| } |
| case kStaticGet: { |
| ObjPtr<mirror::Object> obj = GetAndInitializeDeclaringClass(self, field); |
| if (obj == nullptr) { |
| DCHECK(self->IsExceptionPending()); |
| return false; |
| } |
| DoFieldGetForInvokePolymorphic(self, shadow_frame, obj, field, field_type, result); |
| if (!ConvertReturnValue(callsite_type, handle_type, result)) { |
| DCHECK(self->IsExceptionPending()); |
| return false; |
| } |
| return true; |
| } |
| case kInstancePut: { |
| JValue value = GetFieldValue(shadow_frame, field_type, arg[1]); |
| if (!ConvertArgumentValue(callsite_type, handle_type, 1, &value)) { |
| DCHECK(self->IsExceptionPending()); |
| return false; |
| } |
| ObjPtr<mirror::Object> obj = shadow_frame.GetVRegReference(first_src_reg); |
| result->SetL(0); |
| return DoFieldPutForInvokePolymorphic(self, shadow_frame, obj, field, field_type, value); |
| } |
| case kStaticPut: { |
| JValue value = GetFieldValue(shadow_frame, field_type, arg[0]); |
| if (!ConvertArgumentValue(callsite_type, handle_type, 0, &value)) { |
| DCHECK(self->IsExceptionPending()); |
| return false; |
| } |
| ObjPtr<mirror::Object> obj = field->GetDeclaringClass(); |
| result->SetL(0); |
| return DoFieldPutForInvokePolymorphic(self, shadow_frame, obj, field, field_type, value); |
| } |
| default: |
| LOG(FATAL) << "Unreachable: " << handle_kind; |
| UNREACHABLE(); |
| } |
| } |
| } |
| |
| // Calculate the number of ins for a proxy or native method, where we |
| // can't just look at the code item. |
| static inline size_t GetInsForProxyOrNativeMethod(ArtMethod* method) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| DCHECK(method->IsNative() || method->IsProxyMethod()); |
| |
| method = method->GetInterfaceMethodIfProxy(kRuntimePointerSize); |
| size_t num_ins = 0; |
| // Separate accounting for the receiver, which isn't a part of the |
| // shorty. |
| if (!method->IsStatic()) { |
| ++num_ins; |
| } |
| |
| uint32_t shorty_len = 0; |
| const char* shorty = method->GetShorty(&shorty_len); |
| for (size_t i = 1; i < shorty_len; ++i) { |
| const char c = shorty[i]; |
| ++num_ins; |
| if (c == 'J' || c == 'D') { |
| ++num_ins; |
| } |
| } |
| |
| return num_ins; |
| } |
| |
| |
| inline void PerformCall(Thread* self, |
| const DexFile::CodeItem* code_item, |
| ArtMethod* caller_method, |
| const size_t first_dest_reg, |
| ShadowFrame* callee_frame, |
| JValue* result) { |
| if (LIKELY(Runtime::Current()->IsStarted())) { |
| ArtMethod* target = callee_frame->GetMethod(); |
| if (ClassLinker::ShouldUseInterpreterEntrypoint( |
| target, |
| target->GetEntryPointFromQuickCompiledCode())) { |
| ArtInterpreterToInterpreterBridge(self, code_item, callee_frame, result); |
| } else { |
| ArtInterpreterToCompiledCodeBridge( |
| self, caller_method, code_item, callee_frame, result); |
| } |
| } else { |
| UnstartedRuntime::Invoke(self, code_item, callee_frame, result, first_dest_reg); |
| } |
| } |
| |
| template <bool is_range> |
| inline void CopyRegisters(ShadowFrame& caller_frame, |
| ShadowFrame* callee_frame, |
| const uint32_t (&arg)[Instruction::kMaxVarArgRegs], |
| const size_t first_src_reg, |
| const size_t first_dest_reg, |
| const size_t num_regs) { |
| if (is_range) { |
| const size_t dest_reg_bound = first_dest_reg + num_regs; |
| for (size_t src_reg = first_src_reg, dest_reg = first_dest_reg; dest_reg < dest_reg_bound; |
| ++dest_reg, ++src_reg) { |
| AssignRegister(callee_frame, caller_frame, dest_reg, src_reg); |
| } |
| } else { |
| DCHECK_LE(num_regs, arraysize(arg)); |
| |
| for (size_t arg_index = 0; arg_index < num_regs; ++arg_index) { |
| AssignRegister(callee_frame, caller_frame, first_dest_reg + arg_index, arg[arg_index]); |
| } |
| } |
| } |
| |
| // Returns true iff. the callsite type for a polymorphic invoke is transformer |
| // like, i.e that it has a single input argument whose type is |
| // dalvik.system.EmulatedStackFrame. |
| static inline bool IsCallerTransformer(Handle<mirror::MethodType> callsite_type) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| ObjPtr<mirror::ObjectArray<mirror::Class>> param_types(callsite_type->GetPTypes()); |
| if (param_types->GetLength() == 1) { |
| ObjPtr<mirror::Class> param(param_types->GetWithoutChecks(0)); |
| return param == WellKnownClasses::ToClass(WellKnownClasses::dalvik_system_EmulatedStackFrame); |
| } |
| |
| return false; |
| } |
| |
| template <bool is_range> |
| static inline bool DoCallPolymorphic(ArtMethod* called_method, |
| Handle<mirror::MethodType> callsite_type, |
| Handle<mirror::MethodType> target_type, |
| Thread* self, |
| ShadowFrame& shadow_frame, |
| JValue* result, |
| uint32_t (&arg)[Instruction::kMaxVarArgRegs], |
| uint32_t first_src_reg, |
| const MethodHandleKind handle_kind) { |
| // TODO(narayan): Wire in the String.init hacks. |
| |
| // Compute method information. |
| const DexFile::CodeItem* code_item = called_method->GetCodeItem(); |
| |
| // Number of registers for the callee's call frame. Note that for non-exact |
| // invokes, we always derive this information from the callee method. We |
| // cannot guarantee during verification that the number of registers encoded |
| // in the invoke is equal to the number of ins for the callee. This is because |
| // some transformations (such as boxing a long -> Long or wideining an |
| // int -> long will change that number. |
| uint16_t num_regs; |
| size_t num_input_regs; |
| size_t first_dest_reg; |
| if (LIKELY(code_item != nullptr)) { |
| num_regs = code_item->registers_size_; |
| first_dest_reg = num_regs - code_item->ins_size_; |
| num_input_regs = code_item->ins_size_; |
| // Parameter registers go at the end of the shadow frame. |
| DCHECK_NE(first_dest_reg, (size_t)-1); |
| } else { |
| // No local regs for proxy and native methods. |
| DCHECK(called_method->IsNative() || called_method->IsProxyMethod()); |
| num_regs = num_input_regs = GetInsForProxyOrNativeMethod(called_method); |
| first_dest_reg = 0; |
| } |
| |
| // Allocate shadow frame on the stack. |
| ShadowFrameAllocaUniquePtr shadow_frame_unique_ptr = |
| CREATE_SHADOW_FRAME(num_regs, &shadow_frame, called_method, /* dex pc */ 0); |
| ShadowFrame* new_shadow_frame = shadow_frame_unique_ptr.get(); |
| |
| // Whether this polymorphic invoke was issued by a transformer method. |
| bool is_caller_transformer = false; |
| // Thread might be suspended during PerformArgumentConversions due to the |
| // allocations performed during boxing. |
| { |
| ScopedStackedShadowFramePusher pusher( |
| self, new_shadow_frame, StackedShadowFrameType::kShadowFrameUnderConstruction); |
| if (callsite_type->IsExactMatch(target_type.Get())) { |
| // This is an exact invoke, we can take the fast path of just copying all |
| // registers without performing any argument conversions. |
| CopyRegisters<is_range>(shadow_frame, |
| new_shadow_frame, |
| arg, |
| first_src_reg, |
| first_dest_reg, |
| num_input_regs); |
| } else { |
| // This includes the case where we're entering this invoke-polymorphic |
| // from a transformer method. In that case, the callsite_type will contain |
| // a single argument of type dalvik.system.EmulatedStackFrame. In that |
| // case, we'll have to unmarshal the EmulatedStackFrame into the |
| // new_shadow_frame and perform argument conversions on it. |
| if (IsCallerTransformer(callsite_type)) { |
| is_caller_transformer = true; |
| // The emulated stack frame is the first and only argument when we're coming |
| // through from a transformer. |
| ObjPtr<mirror::EmulatedStackFrame> emulated_stack_frame( |
| reinterpret_cast<mirror::EmulatedStackFrame*>( |
| shadow_frame.GetVRegReference(first_src_reg))); |
| if (!emulated_stack_frame->WriteToShadowFrame(self, |
| target_type, |
| first_dest_reg, |
| new_shadow_frame)) { |
| DCHECK(self->IsExceptionPending()); |
| result->SetL(0); |
| return false; |
| } |
| } else if (!ConvertAndCopyArgumentsFromCallerFrame<is_range>(self, |
| callsite_type, |
| target_type, |
| shadow_frame, |
| first_src_reg, |
| first_dest_reg, |
| arg, |
| new_shadow_frame)) { |
| DCHECK(self->IsExceptionPending()); |
| result->SetL(0); |
| return false; |
| } |
| } |
| } |
| |
| // See TODO in DoInvokePolymorphic : We need to perform this dynamic, receiver |
| // based dispatch right before we perform the actual call, because the |
| // receiver isn't known very early. |
| if (handle_kind == kInvokeVirtual || handle_kind == kInvokeInterface) { |
| ObjPtr<mirror::Object> receiver(new_shadow_frame->GetVRegReference(first_dest_reg)); |
| ObjPtr<mirror::Class> declaring_class(called_method->GetDeclaringClass()); |
| // Verify that _vRegC is an object reference and of the type expected by |
| // the receiver. |
| if (!VerifyObjectIsClass(receiver, declaring_class)) { |
| DCHECK(self->IsExceptionPending()); |
| return false; |
| } |
| |
| called_method = receiver->GetClass()->FindVirtualMethodForVirtualOrInterface( |
| called_method, kRuntimePointerSize); |
| } |
| |
| PerformCall(self, code_item, shadow_frame.GetMethod(), first_dest_reg, new_shadow_frame, result); |
| |
| // TODO(narayan): Perform return value conversions. |
| |
| // If the caller of this signature polymorphic method was a transformer, |
| // we need to copy the result back out to the emulated stack frame. |
| if (is_caller_transformer && !self->IsExceptionPending()) { |
| ObjPtr<mirror::EmulatedStackFrame> emulated_stack_frame( |
| reinterpret_cast<mirror::EmulatedStackFrame*>( |
| shadow_frame.GetVRegReference(first_src_reg))); |
| |
| emulated_stack_frame->SetReturnValue(self, *result); |
| } |
| |
| return !self->IsExceptionPending(); |
| } |
| |
| template <bool is_range> |
| static inline bool DoCallTransform(ArtMethod* called_method, |
| Handle<mirror::MethodType> callsite_type, |
| Handle<mirror::MethodType> callee_type, |
| Thread* self, |
| ShadowFrame& shadow_frame, |
| Handle<mirror::MethodHandleImpl> receiver, |
| JValue* result, |
| uint32_t (&arg)[Instruction::kMaxVarArgRegs], |
| uint32_t first_src_reg) { |
| // This can be fixed to two, because the method we're calling here |
| // (MethodHandle.transformInternal) doesn't have any locals and the signature |
| // is known : |
| // |
| // private MethodHandle.transformInternal(EmulatedStackFrame sf); |
| // |
| // This means we need only two vregs : |
| // - One for the receiver object. |
| // - One for the only method argument (an EmulatedStackFrame). |
| static constexpr size_t kNumRegsForTransform = 2; |
| |
| const DexFile::CodeItem* code_item = called_method->GetCodeItem(); |
| DCHECK(code_item != nullptr); |
| DCHECK_EQ(kNumRegsForTransform, code_item->registers_size_); |
| DCHECK_EQ(kNumRegsForTransform, code_item->ins_size_); |
| |
| ShadowFrameAllocaUniquePtr shadow_frame_unique_ptr = |
| CREATE_SHADOW_FRAME(kNumRegsForTransform, &shadow_frame, called_method, /* dex pc */ 0); |
| ShadowFrame* new_shadow_frame = shadow_frame_unique_ptr.get(); |
| |
| StackHandleScope<1> hs(self); |
| MutableHandle<mirror::EmulatedStackFrame> sf(hs.NewHandle<mirror::EmulatedStackFrame>(nullptr)); |
| if (IsCallerTransformer(callsite_type)) { |
| // If we're entering this transformer from another transformer, we can pass |
| // through the handle directly to the callee, instead of having to |
| // instantiate a new stack frame based on the shadow frame. |
| sf.Assign(reinterpret_cast<mirror::EmulatedStackFrame*>( |
| shadow_frame.GetVRegReference(first_src_reg))); |
| } else { |
| sf.Assign(mirror::EmulatedStackFrame::CreateFromShadowFrameAndArgs<is_range>( |
| self, |
| callsite_type, |
| callee_type, |
| shadow_frame, |
| first_src_reg, |
| arg)); |
| |
| // Something went wrong while creating the emulated stack frame, we should |
| // throw the pending exception. |
| if (sf.Get() == nullptr) { |
| DCHECK(self->IsExceptionPending()); |
| return false; |
| } |
| } |
| |
| new_shadow_frame->SetVRegReference(0, receiver.Get()); |
| new_shadow_frame->SetVRegReference(1, sf.Get()); |
| |
| PerformCall(self, |
| code_item, |
| shadow_frame.GetMethod(), |
| 0 /* first dest reg */, |
| new_shadow_frame, |
| result); |
| |
| // If the called transformer method we called has returned a value, then we |
| // need to copy it back to |result|. |
| if (!self->IsExceptionPending()) { |
| sf->GetReturnValue(self, result); |
| } |
| |
| return !self->IsExceptionPending(); |
| } |
| |
| template <bool is_range, |
| bool do_assignability_check> |
| static inline bool DoCallCommon(ArtMethod* called_method, |
| Thread* self, |
| ShadowFrame& shadow_frame, |
| JValue* result, |
| uint16_t number_of_inputs, |
| uint32_t (&arg)[Instruction::kMaxVarArgRegs], |
| uint32_t vregC) { |
| bool string_init = false; |
| // Replace calls to String.<init> with equivalent StringFactory call. |
| if (UNLIKELY(called_method->GetDeclaringClass()->IsStringClass() |
| && called_method->IsConstructor())) { |
| called_method = WellKnownClasses::StringInitToStringFactory(called_method); |
| string_init = true; |
| } |
| |
| // Compute method information. |
| const DexFile::CodeItem* code_item = called_method->GetCodeItem(); |
| |
| // Number of registers for the callee's call frame. |
| uint16_t num_regs; |
| if (LIKELY(code_item != nullptr)) { |
| num_regs = code_item->registers_size_; |
| DCHECK_EQ(string_init ? number_of_inputs - 1 : number_of_inputs, code_item->ins_size_); |
| } else { |
| DCHECK(called_method->IsNative() || called_method->IsProxyMethod()); |
| num_regs = number_of_inputs; |
| } |
| |
| // Hack for String init: |
| // |
| // Rewrite invoke-x java.lang.String.<init>(this, a, b, c, ...) into: |
| // invoke-x StringFactory(a, b, c, ...) |
| // by effectively dropping the first virtual register from the invoke. |
| // |
| // (at this point the ArtMethod has already been replaced, |
| // so we just need to fix-up the arguments) |
| // |
| // Note that FindMethodFromCode in entrypoint_utils-inl.h was also special-cased |
| // to handle the compiler optimization of replacing `this` with null without |
| // throwing NullPointerException. |
| uint32_t string_init_vreg_this = is_range ? vregC : arg[0]; |
| if (UNLIKELY(string_init)) { |
| DCHECK_GT(num_regs, 0u); // As the method is an instance method, there should be at least 1. |
| |
| // The new StringFactory call is static and has one fewer argument. |
| if (code_item == nullptr) { |
| DCHECK(called_method->IsNative() || called_method->IsProxyMethod()); |
| num_regs--; |
| } // else ... don't need to change num_regs since it comes up from the string_init's code item |
| number_of_inputs--; |
| |
| // Rewrite the var-args, dropping the 0th argument ("this") |
| for (uint32_t i = 1; i < arraysize(arg); ++i) { |
| arg[i - 1] = arg[i]; |
| } |
| arg[arraysize(arg) - 1] = 0; |
| |
| // Rewrite the non-var-arg case |
| vregC++; // Skips the 0th vreg in the range ("this"). |
| } |
| |
| // Parameter registers go at the end of the shadow frame. |
| DCHECK_GE(num_regs, number_of_inputs); |
| size_t first_dest_reg = num_regs - number_of_inputs; |
| DCHECK_NE(first_dest_reg, (size_t)-1); |
| |
| // Allocate shadow frame on the stack. |
| const char* old_cause = self->StartAssertNoThreadSuspension("DoCallCommon"); |
| ShadowFrameAllocaUniquePtr shadow_frame_unique_ptr = |
| CREATE_SHADOW_FRAME(num_regs, &shadow_frame, called_method, /* dex pc */ 0); |
| ShadowFrame* new_shadow_frame = shadow_frame_unique_ptr.get(); |
| |
| // Initialize new shadow frame by copying the registers from the callee shadow frame. |
| if (do_assignability_check) { |
| // Slow path. |
| // We might need to do class loading, which incurs a thread state change to kNative. So |
| // register the shadow frame as under construction and allow suspension again. |
| ScopedStackedShadowFramePusher pusher( |
| self, new_shadow_frame, StackedShadowFrameType::kShadowFrameUnderConstruction); |
| self->EndAssertNoThreadSuspension(old_cause); |
| |
| // ArtMethod here is needed to check type information of the call site against the callee. |
| // Type information is retrieved from a DexFile/DexCache for that respective declared method. |
| // |
| // As a special case for proxy methods, which are not dex-backed, |
| // we have to retrieve type information from the proxy's method |
| // interface method instead (which is dex backed since proxies are never interfaces). |
| ArtMethod* method = |
| new_shadow_frame->GetMethod()->GetInterfaceMethodIfProxy(kRuntimePointerSize); |
| |
| // We need to do runtime check on reference assignment. We need to load the shorty |
| // to get the exact type of each reference argument. |
| const DexFile::TypeList* params = method->GetParameterTypeList(); |
| uint32_t shorty_len = 0; |
| const char* shorty = method->GetShorty(&shorty_len); |
| |
| // Handle receiver apart since it's not part of the shorty. |
| size_t dest_reg = first_dest_reg; |
| size_t arg_offset = 0; |
| |
| if (!method->IsStatic()) { |
| size_t receiver_reg = is_range ? vregC : arg[0]; |
| new_shadow_frame->SetVRegReference(dest_reg, shadow_frame.GetVRegReference(receiver_reg)); |
| ++dest_reg; |
| ++arg_offset; |
| DCHECK(!string_init); // All StringFactory methods are static. |
| } |
| |
| // Copy the caller's invoke-* arguments into the callee's parameter registers. |
| for (uint32_t shorty_pos = 0; dest_reg < num_regs; ++shorty_pos, ++dest_reg, ++arg_offset) { |
| // Skip the 0th 'shorty' type since it represents the return type. |
| DCHECK_LT(shorty_pos + 1, shorty_len) << "for shorty '" << shorty << "'"; |
| const size_t src_reg = (is_range) ? vregC + arg_offset : arg[arg_offset]; |
| switch (shorty[shorty_pos + 1]) { |
| // Handle Object references. 1 virtual register slot. |
| case 'L': { |
| ObjPtr<mirror::Object> o = shadow_frame.GetVRegReference(src_reg); |
| if (do_assignability_check && o != nullptr) { |
| PointerSize pointer_size = Runtime::Current()->GetClassLinker()->GetImagePointerSize(); |
| const uint32_t type_idx = params->GetTypeItem(shorty_pos).type_idx_; |
| ObjPtr<mirror::Class> arg_type = method->GetDexCacheResolvedType(type_idx, |
| pointer_size); |
| if (arg_type == nullptr) { |
| StackHandleScope<1> hs(self); |
| // Preserve o since it is used below and GetClassFromTypeIndex may cause thread |
| // suspension. |
| HandleWrapperObjPtr<mirror::Object> h = hs.NewHandleWrapper(&o); |
| arg_type = method->GetClassFromTypeIndex(type_idx, true /* resolve */, pointer_size); |
| if (arg_type == nullptr) { |
| CHECK(self->IsExceptionPending()); |
| return false; |
| } |
| } |
| if (!o->VerifierInstanceOf(arg_type)) { |
| // This should never happen. |
| std::string temp1, temp2; |
| self->ThrowNewExceptionF("Ljava/lang/VirtualMachineError;", |
| "Invoking %s with bad arg %d, type '%s' not instance of '%s'", |
| new_shadow_frame->GetMethod()->GetName(), shorty_pos, |
| o->GetClass()->GetDescriptor(&temp1), |
| arg_type->GetDescriptor(&temp2)); |
| return false; |
| } |
| } |
| new_shadow_frame->SetVRegReference(dest_reg, o.Ptr()); |
| break; |
| } |
| // Handle doubles and longs. 2 consecutive virtual register slots. |
| case 'J': case 'D': { |
| uint64_t wide_value = |
| (static_cast<uint64_t>(shadow_frame.GetVReg(src_reg + 1)) << BitSizeOf<uint32_t>()) | |
| static_cast<uint32_t>(shadow_frame.GetVReg(src_reg)); |
| new_shadow_frame->SetVRegLong(dest_reg, wide_value); |
| // Skip the next virtual register slot since we already used it. |
| ++dest_reg; |
| ++arg_offset; |
| break; |
| } |
| // Handle all other primitives that are always 1 virtual register slot. |
| default: |
| new_shadow_frame->SetVReg(dest_reg, shadow_frame.GetVReg(src_reg)); |
| break; |
| } |
| } |
| } else { |
| if (is_range) { |
| DCHECK_EQ(num_regs, first_dest_reg + number_of_inputs); |
| } |
| |
| CopyRegisters<is_range>(shadow_frame, |
| new_shadow_frame, |
| arg, |
| vregC, |
| first_dest_reg, |
| number_of_inputs); |
| self->EndAssertNoThreadSuspension(old_cause); |
| } |
| |
| PerformCall(self, code_item, shadow_frame.GetMethod(), first_dest_reg, new_shadow_frame, result); |
| |
| if (string_init && !self->IsExceptionPending()) { |
| SetStringInitValueToAllAliases(&shadow_frame, string_init_vreg_this, *result); |
| } |
| |
| return !self->IsExceptionPending(); |
| } |
| |
| template<bool is_range, bool do_assignability_check> |
| bool DoCall(ArtMethod* called_method, Thread* self, ShadowFrame& shadow_frame, |
| const Instruction* inst, uint16_t inst_data, JValue* result) { |
| // Argument word count. |
| const uint16_t number_of_inputs = |
| (is_range) ? inst->VRegA_3rc(inst_data) : inst->VRegA_35c(inst_data); |
| |
| // TODO: find a cleaner way to separate non-range and range information without duplicating |
| // code. |
| uint32_t arg[Instruction::kMaxVarArgRegs] = {}; // only used in invoke-XXX. |
| uint32_t vregC = 0; |
| if (is_range) { |
| vregC = inst->VRegC_3rc(); |
| } else { |
| vregC = inst->VRegC_35c(); |
| inst->GetVarArgs(arg, inst_data); |
| } |
| |
| return DoCallCommon<is_range, do_assignability_check>( |
| called_method, self, shadow_frame, |
| result, number_of_inputs, arg, vregC); |
| } |
| |
| template <bool is_range, bool do_access_check, bool transaction_active> |
| bool DoFilledNewArray(const Instruction* inst, |
| const ShadowFrame& shadow_frame, |
| Thread* self, |
| JValue* result) { |
| DCHECK(inst->Opcode() == Instruction::FILLED_NEW_ARRAY || |
| inst->Opcode() == Instruction::FILLED_NEW_ARRAY_RANGE); |
| const int32_t length = is_range ? inst->VRegA_3rc() : inst->VRegA_35c(); |
| if (!is_range) { |
| // Checks FILLED_NEW_ARRAY's length does not exceed 5 arguments. |
| CHECK_LE(length, 5); |
| } |
| if (UNLIKELY(length < 0)) { |
| ThrowNegativeArraySizeException(length); |
| return false; |
| } |
| uint16_t type_idx = is_range ? inst->VRegB_3rc() : inst->VRegB_35c(); |
| ObjPtr<mirror::Class> array_class = ResolveVerifyAndClinit(type_idx, |
| shadow_frame.GetMethod(), |
| self, |
| false, |
| do_access_check); |
| if (UNLIKELY(array_class == nullptr)) { |
| DCHECK(self->IsExceptionPending()); |
| return false; |
| } |
| CHECK(array_class->IsArrayClass()); |
| ObjPtr<mirror::Class> component_class = array_class->GetComponentType(); |
| const bool is_primitive_int_component = component_class->IsPrimitiveInt(); |
| if (UNLIKELY(component_class->IsPrimitive() && !is_primitive_int_component)) { |
| if (component_class->IsPrimitiveLong() || component_class->IsPrimitiveDouble()) { |
| ThrowRuntimeException("Bad filled array request for type %s", |
| component_class->PrettyDescriptor().c_str()); |
| } else { |
| self->ThrowNewExceptionF("Ljava/lang/InternalError;", |
| "Found type %s; filled-new-array not implemented for anything but 'int'", |
| component_class->PrettyDescriptor().c_str()); |
| } |
| return false; |
| } |
| ObjPtr<mirror::Object> new_array = mirror::Array::Alloc<true>( |
| self, |
| array_class, |
| length, |
| array_class->GetComponentSizeShift(), |
| Runtime::Current()->GetHeap()->GetCurrentAllocator()); |
| if (UNLIKELY(new_array == nullptr)) { |
| self->AssertPendingOOMException(); |
| return false; |
| } |
| uint32_t arg[Instruction::kMaxVarArgRegs]; // only used in filled-new-array. |
| uint32_t vregC = 0; // only used in filled-new-array-range. |
| if (is_range) { |
| vregC = inst->VRegC_3rc(); |
| } else { |
| inst->GetVarArgs(arg); |
| } |
| for (int32_t i = 0; i < length; ++i) { |
| size_t src_reg = is_range ? vregC + i : arg[i]; |
| if (is_primitive_int_component) { |
| new_array->AsIntArray()->SetWithoutChecks<transaction_active>( |
| i, shadow_frame.GetVReg(src_reg)); |
| } else { |
| new_array->AsObjectArray<mirror::Object>()->SetWithoutChecks<transaction_active>( |
| i, shadow_frame.GetVRegReference(src_reg)); |
| } |
| } |
| |
| result->SetL(new_array); |
| return true; |
| } |
| |
| // TODO: Use ObjPtr here. |
| template<typename T> |
| static void RecordArrayElementsInTransactionImpl(mirror::PrimitiveArray<T>* array, |
| int32_t count) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| Runtime* runtime = Runtime::Current(); |
| for (int32_t i = 0; i < count; ++i) { |
| runtime->RecordWriteArray(array, i, array->GetWithoutChecks(i)); |
| } |
| } |
| |
| void RecordArrayElementsInTransaction(ObjPtr<mirror::Array> array, int32_t count) |
| REQUIRES_SHARED(Locks::mutator_lock_) { |
| DCHECK(Runtime::Current()->IsActiveTransaction()); |
| DCHECK(array != nullptr); |
| DCHECK_LE(count, array->GetLength()); |
| Primitive::Type primitive_component_type = array->GetClass()->GetComponentType()->GetPrimitiveType(); |
| switch (primitive_component_type) { |
| case Primitive::kPrimBoolean: |
| RecordArrayElementsInTransactionImpl(array->AsBooleanArray(), count); |
| break; |
| case Primitive::kPrimByte: |
| RecordArrayElementsInTransactionImpl(array->AsByteArray(), count); |
| break; |
| case Primitive::kPrimChar: |
| RecordArrayElementsInTransactionImpl(array->AsCharArray(), count); |
| break; |
| case Primitive::kPrimShort: |
| RecordArrayElementsInTransactionImpl(array->AsShortArray(), count); |
| break; |
| case Primitive::kPrimInt: |
| RecordArrayElementsInTransactionImpl(array->AsIntArray(), count); |
| break; |
| case Primitive::kPrimFloat: |
| RecordArrayElementsInTransactionImpl(array->AsFloatArray(), count); |
| break; |
| case Primitive::kPrimLong: |
| RecordArrayElementsInTransactionImpl(array->AsLongArray(), count); |
| break; |
| case Primitive::kPrimDouble: |
| RecordArrayElementsInTransactionImpl(array->AsDoubleArray(), count); |
| break; |
| default: |
| LOG(FATAL) << "Unsupported primitive type " << primitive_component_type |
| << " in fill-array-data"; |
| break; |
| } |
| } |
| |
| // Explicit DoCall template function declarations. |
| #define EXPLICIT_DO_CALL_TEMPLATE_DECL(_is_range, _do_assignability_check) \ |
| template REQUIRES_SHARED(Locks::mutator_lock_) \ |
| bool DoCall<_is_range, _do_assignability_check>(ArtMethod* method, Thread* self, \ |
| ShadowFrame& shadow_frame, \ |
| const Instruction* inst, uint16_t inst_data, \ |
| JValue* result) |
| EXPLICIT_DO_CALL_TEMPLATE_DECL(false, false); |
| EXPLICIT_DO_CALL_TEMPLATE_DECL(false, true); |
| EXPLICIT_DO_CALL_TEMPLATE_DECL(true, false); |
| EXPLICIT_DO_CALL_TEMPLATE_DECL(true, true); |
| #undef EXPLICIT_DO_CALL_TEMPLATE_DECL |
| |
| // Explicit DoInvokePolymorphic template function declarations. |
| #define EXPLICIT_DO_INVOKE_POLYMORPHIC_TEMPLATE_DECL(_is_range, _do_assignability_check) \ |
| template REQUIRES_SHARED(Locks::mutator_lock_) \ |
| bool DoInvokePolymorphic<_is_range, _do_assignability_check>( \ |
| Thread* self, ShadowFrame& shadow_frame, const Instruction* inst, \ |
| uint16_t inst_data, JValue* result) |
| |
| EXPLICIT_DO_INVOKE_POLYMORPHIC_TEMPLATE_DECL(false, false); |
| EXPLICIT_DO_INVOKE_POLYMORPHIC_TEMPLATE_DECL(false, true); |
| EXPLICIT_DO_INVOKE_POLYMORPHIC_TEMPLATE_DECL(true, false); |
| EXPLICIT_DO_INVOKE_POLYMORPHIC_TEMPLATE_DECL(true, true); |
| #undef EXPLICIT_DO_INVOKE_POLYMORPHIC_TEMPLATE_DECL |
| |
| // Explicit DoFilledNewArray template function declarations. |
| #define EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(_is_range_, _check, _transaction_active) \ |
| template REQUIRES_SHARED(Locks::mutator_lock_) \ |
| bool DoFilledNewArray<_is_range_, _check, _transaction_active>(const Instruction* inst, \ |
| const ShadowFrame& shadow_frame, \ |
| Thread* self, JValue* result) |
| #define EXPLICIT_DO_FILLED_NEW_ARRAY_ALL_TEMPLATE_DECL(_transaction_active) \ |
| EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(false, false, _transaction_active); \ |
| EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(false, true, _transaction_active); \ |
| EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(true, false, _transaction_active); \ |
| EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(true, true, _transaction_active) |
| EXPLICIT_DO_FILLED_NEW_ARRAY_ALL_TEMPLATE_DECL(false); |
| EXPLICIT_DO_FILLED_NEW_ARRAY_ALL_TEMPLATE_DECL(true); |
| #undef EXPLICIT_DO_FILLED_NEW_ARRAY_ALL_TEMPLATE_DECL |
| #undef EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL |
| |
| } // namespace interpreter |
| } // namespace art |