| /* |
| * 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 "mirror/array-inl.h" |
| #include "unstarted_runtime.h" |
| |
| namespace art { |
| namespace interpreter { |
| |
| void ThrowNullPointerExceptionFromInterpreter() { |
| ThrowNullPointerExceptionFromDexPC(); |
| } |
| |
| 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; |
| } |
| 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; |
| } |
| } |
| f->GetDeclaringClass()->AssertInitializedOrInitializingInThread(self); |
| // Report this field access to instrumentation if needed. |
| instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation(); |
| if (UNLIKELY(instrumentation->HasFieldReadListeners())) { |
| Object* this_object = f->IsStatic() ? nullptr : obj; |
| instrumentation->FieldReadEvent(self, this_object, shadow_frame.GetMethod(), |
| shadow_frame.GetDexPC(), f); |
| } |
| 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, f->GetBoolean(obj)); |
| break; |
| case Primitive::kPrimByte: |
| shadow_frame.SetVReg(vregA, f->GetByte(obj)); |
| break; |
| case Primitive::kPrimChar: |
| shadow_frame.SetVReg(vregA, f->GetChar(obj)); |
| break; |
| case Primitive::kPrimShort: |
| shadow_frame.SetVReg(vregA, f->GetShort(obj)); |
| break; |
| case Primitive::kPrimInt: |
| shadow_frame.SetVReg(vregA, f->GetInt(obj)); |
| break; |
| case Primitive::kPrimLong: |
| shadow_frame.SetVRegLong(vregA, f->GetLong(obj)); |
| break; |
| case Primitive::kPrimNot: |
| shadow_frame.SetVRegReference(vregA, f->GetObject(obj)); |
| 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 |
| |
| // 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) { |
| 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()); |
| instrumentation->FieldReadEvent(Thread::Current(), obj, 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 |
| |
| template<Primitive::Type field_type> |
| static JValue GetFieldValue(const ShadowFrame& shadow_frame, uint32_t vreg) |
| SHARED_LOCKS_REQUIRED(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<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) { |
| 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; |
| } |
| 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; |
| } |
| } |
| f->GetDeclaringClass()->AssertInitializedOrInitializingInThread(self); |
| uint32_t vregA = is_static ? inst->VRegA_21c(inst_data) : inst->VRegA_22c(inst_data); |
| // 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())) { |
| JValue field_value = GetFieldValue<field_type>(shadow_frame, vregA); |
| Object* this_object = f->IsStatic() ? nullptr : obj; |
| instrumentation->FieldWriteEvent(self, this_object, shadow_frame.GetMethod(), |
| shadow_frame.GetDexPC(), f, field_value); |
| } |
| switch (field_type) { |
| case Primitive::kPrimBoolean: |
| f->SetBoolean<transaction_active>(obj, shadow_frame.GetVReg(vregA)); |
| break; |
| case Primitive::kPrimByte: |
| f->SetByte<transaction_active>(obj, shadow_frame.GetVReg(vregA)); |
| break; |
| case Primitive::kPrimChar: |
| f->SetChar<transaction_active>(obj, shadow_frame.GetVReg(vregA)); |
| break; |
| case Primitive::kPrimShort: |
| f->SetShort<transaction_active>(obj, shadow_frame.GetVReg(vregA)); |
| break; |
| case Primitive::kPrimInt: |
| f->SetInt<transaction_active>(obj, shadow_frame.GetVReg(vregA)); |
| break; |
| case Primitive::kPrimLong: |
| f->SetLong<transaction_active>(obj, shadow_frame.GetVRegLong(vregA)); |
| break; |
| case Primitive::kPrimNot: { |
| Object* reg = shadow_frame.GetVRegReference(vregA); |
| if (do_assignability_check && reg != nullptr) { |
| // FieldHelper::GetType can resolve classes, use a handle wrapper which will restore the |
| // object in the destructor. |
| Class* field_class; |
| { |
| StackHandleScope<3> hs(self); |
| HandleWrapper<mirror::ArtField> h_f(hs.NewHandleWrapper(&f)); |
| HandleWrapper<mirror::Object> h_reg(hs.NewHandleWrapper(®)); |
| HandleWrapper<mirror::Object> h_obj(hs.NewHandleWrapper(&obj)); |
| field_class = h_f->GetType(true); |
| } |
| if (!reg->VerifierInstanceOf(field_class)) { |
| // 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; |
| } |
| |
| // 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 |
| |
| template<Primitive::Type field_type, bool transaction_active> |
| bool DoIPutQuick(const ShadowFrame& shadow_frame, const Instruction* inst, uint16_t inst_data) { |
| 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); |
| instrumentation->FieldWriteEvent(Thread::Current(), obj, 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 |
| |
| uint32_t FindNextInstructionFollowingException(Thread* self, |
| ShadowFrame& shadow_frame, |
| uint32_t dex_pc, |
| const instrumentation::Instrumentation* instrumentation) { |
| self->VerifyStack(); |
| StackHandleScope<3> hs(self); |
| Handle<mirror::Throwable> exception(hs.NewHandle(self->GetException())); |
| if (instrumentation->HasExceptionCaughtListeners() |
| && self->IsExceptionThrownByCurrentMethod(exception.Get())) { |
| instrumentation->ExceptionCaughtEvent(self, exception.Get()); |
| } |
| bool clear_exception = false; |
| uint32_t found_dex_pc; |
| { |
| Handle<mirror::Class> exception_class(hs.NewHandle(exception->GetClass())); |
| Handle<mirror::ArtMethod> h_method(hs.NewHandle(shadow_frame.GetMethod())); |
| found_dex_pc = mirror::ArtMethod::FindCatchBlock(h_method, exception_class, dex_pc, |
| &clear_exception); |
| } |
| if (found_dex_pc == DexFile::kDexNoIndex) { |
| // 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(); |
| } |
| |
| // Assign register 'src_reg' from shadow_frame to register 'dest_reg' into new_shadow_frame. |
| static inline void AssignRegister(ShadowFrame* new_shadow_frame, const ShadowFrame& shadow_frame, |
| size_t dest_reg, size_t src_reg) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| // If both register locations contains the same value, the register probably holds a reference. |
| // Uint required, so that sign extension does not make this wrong on 64b systems |
| uint32_t src_value = shadow_frame.GetVReg(src_reg); |
| mirror::Object* o = shadow_frame.GetVRegReference<kVerifyNone>(src_reg); |
| if (src_value == reinterpret_cast<uintptr_t>(o)) { |
| new_shadow_frame->SetVRegReference(dest_reg, o); |
| } else { |
| new_shadow_frame->SetVReg(dest_reg, src_value); |
| } |
| } |
| |
| void AbortTransaction(Thread* self, const char* fmt, ...) { |
| CHECK(Runtime::Current()->IsActiveTransaction()); |
| // Constructs abort message. |
| va_list args; |
| va_start(args, fmt); |
| std::string abort_msg; |
| StringAppendV(&abort_msg, fmt, args); |
| // Throws an exception so we can abort the transaction and rollback every change. |
| Runtime::Current()->AbortTransactionAndThrowInternalError(self, abort_msg); |
| va_end(args); |
| } |
| |
| 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) { |
| // Compute method information. |
| const DexFile::CodeItem* code_item = called_method->GetCodeItem(); |
| const uint16_t num_ins = (is_range) ? inst->VRegA_3rc(inst_data) : inst->VRegA_35c(inst_data); |
| uint16_t num_regs; |
| if (LIKELY(code_item != NULL)) { |
| num_regs = code_item->registers_size_; |
| DCHECK_EQ(num_ins, code_item->ins_size_); |
| } else { |
| DCHECK(called_method->IsNative() || called_method->IsProxyMethod()); |
| num_regs = num_ins; |
| } |
| |
| // Allocate shadow frame on the stack. |
| const char* old_cause = self->StartAssertNoThreadSuspension("DoCall"); |
| void* memory = alloca(ShadowFrame::ComputeSize(num_regs)); |
| ShadowFrame* new_shadow_frame(ShadowFrame::Create(num_regs, &shadow_frame, called_method, 0, |
| memory)); |
| |
| // Initialize new shadow frame. |
| const size_t first_dest_reg = num_regs - num_ins; |
| 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. |
| self->SetShadowFrameUnderConstruction(new_shadow_frame); |
| self->EndAssertNoThreadSuspension(old_cause); |
| |
| // 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 = new_shadow_frame->GetMethod()->GetParameterTypeList(); |
| uint32_t shorty_len = 0; |
| const char* shorty = new_shadow_frame->GetMethod()->GetShorty(&shorty_len); |
| |
| // TODO: find a cleaner way to separate non-range and range information without duplicating |
| // code. |
| uint32_t arg[5]; // only used in invoke-XXX. |
| uint32_t vregC; // only used in invoke-XXX-range. |
| if (is_range) { |
| vregC = inst->VRegC_3rc(); |
| } else { |
| inst->GetVarArgs(arg, inst_data); |
| } |
| |
| // Handle receiver apart since it's not part of the shorty. |
| size_t dest_reg = first_dest_reg; |
| size_t arg_offset = 0; |
| if (!new_shadow_frame->GetMethod()->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; |
| } |
| for (uint32_t shorty_pos = 0; dest_reg < num_regs; ++shorty_pos, ++dest_reg, ++arg_offset) { |
| DCHECK_LT(shorty_pos + 1, shorty_len); |
| const size_t src_reg = (is_range) ? vregC + arg_offset : arg[arg_offset]; |
| switch (shorty[shorty_pos + 1]) { |
| case 'L': { |
| Object* o = shadow_frame.GetVRegReference(src_reg); |
| if (do_assignability_check && o != NULL) { |
| Class* arg_type = |
| new_shadow_frame->GetMethod()->GetClassFromTypeIndex( |
| params->GetTypeItem(shorty_pos).type_idx_, true); |
| if (arg_type == NULL) { |
| 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); |
| break; |
| } |
| case 'J': case 'D': { |
| uint64_t wide_value = (static_cast<uint64_t>(shadow_frame.GetVReg(src_reg + 1)) << 32) | |
| static_cast<uint32_t>(shadow_frame.GetVReg(src_reg)); |
| new_shadow_frame->SetVRegLong(dest_reg, wide_value); |
| ++dest_reg; |
| ++arg_offset; |
| break; |
| } |
| default: |
| new_shadow_frame->SetVReg(dest_reg, shadow_frame.GetVReg(src_reg)); |
| break; |
| } |
| } |
| // We're done with the construction. |
| self->ClearShadowFrameUnderConstruction(); |
| } else { |
| // Fast path: no extra checks. |
| if (is_range) { |
| const uint16_t first_src_reg = inst->VRegC_3rc(); |
| for (size_t src_reg = first_src_reg, dest_reg = first_dest_reg; dest_reg < num_regs; |
| ++dest_reg, ++src_reg) { |
| AssignRegister(new_shadow_frame, shadow_frame, dest_reg, src_reg); |
| } |
| } else { |
| DCHECK_LE(num_ins, 5U); |
| uint16_t regList = inst->Fetch16(2); |
| uint16_t count = num_ins; |
| if (count == 5) { |
| AssignRegister(new_shadow_frame, shadow_frame, first_dest_reg + 4U, |
| (inst_data >> 8) & 0x0f); |
| --count; |
| } |
| for (size_t arg_index = 0; arg_index < count; ++arg_index, regList >>= 4) { |
| AssignRegister(new_shadow_frame, shadow_frame, first_dest_reg + arg_index, regList & 0x0f); |
| } |
| } |
| self->EndAssertNoThreadSuspension(old_cause); |
| } |
| |
| // Do the call now. |
| if (LIKELY(Runtime::Current()->IsStarted())) { |
| if (kIsDebugBuild && new_shadow_frame->GetMethod()->GetEntryPointFromInterpreter() == nullptr) { |
| LOG(FATAL) << "Attempt to invoke non-executable method: " |
| << PrettyMethod(new_shadow_frame->GetMethod()); |
| UNREACHABLE(); |
| } |
| if (kIsDebugBuild && Runtime::Current()->GetInstrumentation()->IsForcedInterpretOnly() && |
| !new_shadow_frame->GetMethod()->IsNative() && |
| !new_shadow_frame->GetMethod()->IsProxyMethod() && |
| new_shadow_frame->GetMethod()->GetEntryPointFromInterpreter() |
| == artInterpreterToCompiledCodeBridge) { |
| LOG(FATAL) << "Attempt to call compiled code when -Xint: " |
| << PrettyMethod(new_shadow_frame->GetMethod()); |
| UNREACHABLE(); |
| } |
| (new_shadow_frame->GetMethod()->GetEntryPointFromInterpreter())(self, code_item, |
| new_shadow_frame, result); |
| } else { |
| UnstartedRuntimeInvoke(self, code_item, new_shadow_frame, result, first_dest_reg); |
| } |
| return !self->IsExceptionPending(); |
| } |
| |
| 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(); |
| Class* arrayClass = ResolveVerifyAndClinit(type_idx, shadow_frame.GetMethod(), |
| self, false, do_access_check); |
| if (UNLIKELY(arrayClass == NULL)) { |
| DCHECK(self->IsExceptionPending()); |
| return false; |
| } |
| CHECK(arrayClass->IsArrayClass()); |
| Class* componentClass = arrayClass->GetComponentType(); |
| if (UNLIKELY(componentClass->IsPrimitive() && !componentClass->IsPrimitiveInt())) { |
| if (componentClass->IsPrimitiveLong() || componentClass->IsPrimitiveDouble()) { |
| ThrowRuntimeException("Bad filled array request for type %s", |
| PrettyDescriptor(componentClass).c_str()); |
| } else { |
| self->ThrowNewExceptionF("Ljava/lang/InternalError;", |
| "Found type %s; filled-new-array not implemented for anything but 'int'", |
| PrettyDescriptor(componentClass).c_str()); |
| } |
| return false; |
| } |
| Object* newArray = Array::Alloc<true>(self, arrayClass, length, |
| arrayClass->GetComponentSizeShift(), |
| Runtime::Current()->GetHeap()->GetCurrentAllocator()); |
| if (UNLIKELY(newArray == NULL)) { |
| DCHECK(self->IsExceptionPending()); |
| return false; |
| } |
| uint32_t arg[5]; // only used in filled-new-array. |
| uint32_t vregC; // only used in filled-new-array-range. |
| if (is_range) { |
| vregC = inst->VRegC_3rc(); |
| } else { |
| inst->GetVarArgs(arg); |
| } |
| const bool is_primitive_int_component = componentClass->IsPrimitiveInt(); |
| for (int32_t i = 0; i < length; ++i) { |
| size_t src_reg = is_range ? vregC + i : arg[i]; |
| if (is_primitive_int_component) { |
| newArray->AsIntArray()->SetWithoutChecks<transaction_active>(i, shadow_frame.GetVReg(src_reg)); |
| } else { |
| newArray->AsObjectArray<Object>()->SetWithoutChecks<transaction_active>(i, shadow_frame.GetVRegReference(src_reg)); |
| } |
| } |
| |
| result->SetL(newArray); |
| return true; |
| } |
| |
| // TODO fix thread analysis: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_). |
| template<typename T> |
| static void RecordArrayElementsInTransactionImpl(mirror::PrimitiveArray<T>* array, int32_t count) |
| NO_THREAD_SAFETY_ANALYSIS { |
| Runtime* runtime = Runtime::Current(); |
| for (int32_t i = 0; i < count; ++i) { |
| runtime->RecordWriteArray(array, i, array->GetWithoutChecks(i)); |
| } |
| } |
| |
| void RecordArrayElementsInTransaction(mirror::Array* array, int32_t count) |
| SHARED_LOCKS_REQUIRED(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: |
| case Primitive::kPrimFloat: |
| RecordArrayElementsInTransactionImpl(array->AsIntArray(), count); |
| break; |
| case Primitive::kPrimLong: |
| case Primitive::kPrimDouble: |
| RecordArrayElementsInTransactionImpl(array->AsLongArray(), 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 SHARED_LOCKS_REQUIRED(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 DoFilledNewArray template function declarations. |
| #define EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(_is_range_, _check, _transaction_active) \ |
| template SHARED_LOCKS_REQUIRED(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 |
