| /* |
| * Copyright (C) 2016 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. |
| * |
| * Implementation file of the dexlayout utility. |
| * |
| * This is a tool to read dex files into an internal representation, |
| * reorganize the representation, and emit dex files with a better |
| * file layout. |
| */ |
| |
| #include "dex_ir.h" |
| #include "dex_instruction-inl.h" |
| #include "dex_ir_builder.h" |
| |
| namespace art { |
| namespace dex_ir { |
| |
| static uint64_t ReadVarWidth(const uint8_t** data, uint8_t length, bool sign_extend) { |
| uint64_t value = 0; |
| for (uint32_t i = 0; i <= length; i++) { |
| value |= static_cast<uint64_t>(*(*data)++) << (i * 8); |
| } |
| if (sign_extend) { |
| int shift = (7 - length) * 8; |
| return (static_cast<int64_t>(value) << shift) >> shift; |
| } |
| return value; |
| } |
| |
| static bool GetPositionsCb(void* context, const DexFile::PositionInfo& entry) { |
| DebugInfoItem* debug_info = reinterpret_cast<DebugInfoItem*>(context); |
| PositionInfoVector& positions = debug_info->GetPositionInfo(); |
| positions.push_back(std::unique_ptr<PositionInfo>(new PositionInfo(entry.address_, entry.line_))); |
| return false; |
| } |
| |
| static void GetLocalsCb(void* context, const DexFile::LocalInfo& entry) { |
| DebugInfoItem* debug_info = reinterpret_cast<DebugInfoItem*>(context); |
| LocalInfoVector& locals = debug_info->GetLocalInfo(); |
| const char* name = entry.name_ != nullptr ? entry.name_ : "(null)"; |
| const char* signature = entry.signature_ != nullptr ? entry.signature_ : ""; |
| locals.push_back(std::unique_ptr<LocalInfo>( |
| new LocalInfo(name, entry.descriptor_, signature, entry.start_address_, |
| entry.end_address_, entry.reg_))); |
| } |
| |
| static uint32_t GetCodeItemSize(const DexFile& dex_file, const DexFile::CodeItem& disk_code_item) { |
| uintptr_t code_item_start = reinterpret_cast<uintptr_t>(&disk_code_item); |
| uint32_t insns_size = disk_code_item.insns_size_in_code_units_; |
| uint32_t tries_size = disk_code_item.tries_size_; |
| if (tries_size == 0) { |
| uintptr_t insns_end = reinterpret_cast<uintptr_t>(&disk_code_item.insns_[insns_size]); |
| return insns_end - code_item_start; |
| } else { |
| uint32_t last_handler_off = 0; |
| for (uint32_t i = 0; i < tries_size; ++i) { |
| // Iterate over the try items to find the last catch handler. |
| const DexFile::TryItem* disk_try_item = dex_file.GetTryItems(disk_code_item, i); |
| uint16_t handler_off = disk_try_item->handler_off_; |
| if (handler_off > last_handler_off) { |
| last_handler_off = handler_off; |
| } |
| } |
| // Decode the final handler to see where it ends. |
| const uint8_t* handler_data = DexFile::GetCatchHandlerData(disk_code_item, last_handler_off); |
| int32_t uleb128_count = DecodeSignedLeb128(&handler_data) * 2; |
| if (uleb128_count <= 0) { |
| uleb128_count = -uleb128_count + 1; |
| } |
| for (int32_t i = 0; i < uleb128_count; ++i) { |
| DecodeUnsignedLeb128(&handler_data); |
| } |
| return reinterpret_cast<uintptr_t>(handler_data) - code_item_start; |
| } |
| } |
| |
| static uint32_t GetDebugInfoStreamSize(const uint8_t* debug_info_stream) { |
| const uint8_t* stream = debug_info_stream; |
| DecodeUnsignedLeb128(&stream); // line_start |
| uint32_t parameters_size = DecodeUnsignedLeb128(&stream); |
| for (uint32_t i = 0; i < parameters_size; ++i) { |
| DecodeUnsignedLeb128P1(&stream); // Parameter name. |
| } |
| |
| for (;;) { |
| uint8_t opcode = *stream++; |
| switch (opcode) { |
| case DexFile::DBG_END_SEQUENCE: |
| return stream - debug_info_stream; // end of stream. |
| case DexFile::DBG_ADVANCE_PC: |
| DecodeUnsignedLeb128(&stream); // addr_diff |
| break; |
| case DexFile::DBG_ADVANCE_LINE: |
| DecodeSignedLeb128(&stream); // line_diff |
| break; |
| case DexFile::DBG_START_LOCAL: |
| DecodeUnsignedLeb128(&stream); // register_num |
| DecodeUnsignedLeb128P1(&stream); // name_idx |
| DecodeUnsignedLeb128P1(&stream); // type_idx |
| break; |
| case DexFile::DBG_START_LOCAL_EXTENDED: |
| DecodeUnsignedLeb128(&stream); // register_num |
| DecodeUnsignedLeb128P1(&stream); // name_idx |
| DecodeUnsignedLeb128P1(&stream); // type_idx |
| DecodeUnsignedLeb128P1(&stream); // sig_idx |
| break; |
| case DexFile::DBG_END_LOCAL: |
| case DexFile::DBG_RESTART_LOCAL: |
| DecodeUnsignedLeb128(&stream); // register_num |
| break; |
| case DexFile::DBG_SET_PROLOGUE_END: |
| case DexFile::DBG_SET_EPILOGUE_BEGIN: |
| break; |
| case DexFile::DBG_SET_FILE: { |
| DecodeUnsignedLeb128P1(&stream); // name_idx |
| break; |
| } |
| default: { |
| break; |
| } |
| } |
| } |
| } |
| |
| static bool GetIdFromInstruction(Collections& collections, |
| const Instruction* dec_insn, |
| std::vector<TypeId*>* type_ids, |
| std::vector<StringId*>* string_ids, |
| std::vector<MethodId*>* method_ids, |
| std::vector<FieldId*>* field_ids) { |
| // Determine index and width of the string. |
| uint32_t index = 0; |
| switch (Instruction::FormatOf(dec_insn->Opcode())) { |
| // SOME NOT SUPPORTED: |
| // case Instruction::k20bc: |
| case Instruction::k21c: |
| case Instruction::k35c: |
| // case Instruction::k35ms: |
| case Instruction::k3rc: |
| // case Instruction::k3rms: |
| // case Instruction::k35mi: |
| // case Instruction::k3rmi: |
| case Instruction::k45cc: |
| case Instruction::k4rcc: |
| index = dec_insn->VRegB(); |
| break; |
| case Instruction::k31c: |
| index = dec_insn->VRegB(); |
| break; |
| case Instruction::k22c: |
| // case Instruction::k22cs: |
| index = dec_insn->VRegC(); |
| break; |
| default: |
| break; |
| } // switch |
| |
| // Determine index type, and add reference to the appropriate collection. |
| switch (Instruction::IndexTypeOf(dec_insn->Opcode())) { |
| case Instruction::kIndexTypeRef: |
| if (index < collections.TypeIdsSize()) { |
| type_ids->push_back(collections.GetTypeId(index)); |
| return true; |
| } |
| break; |
| case Instruction::kIndexStringRef: |
| if (index < collections.StringIdsSize()) { |
| string_ids->push_back(collections.GetStringId(index)); |
| return true; |
| } |
| break; |
| case Instruction::kIndexMethodRef: |
| case Instruction::kIndexMethodAndProtoRef: |
| if (index < collections.MethodIdsSize()) { |
| method_ids->push_back(collections.GetMethodId(index)); |
| return true; |
| } |
| break; |
| case Instruction::kIndexFieldRef: |
| if (index < collections.FieldIdsSize()) { |
| field_ids->push_back(collections.GetFieldId(index)); |
| return true; |
| } |
| break; |
| case Instruction::kIndexUnknown: |
| case Instruction::kIndexNone: |
| case Instruction::kIndexVtableOffset: |
| case Instruction::kIndexFieldOffset: |
| default: |
| break; |
| } // switch |
| return false; |
| } |
| |
| /* |
| * Get all the types, strings, methods, and fields referred to from bytecode. |
| */ |
| static bool GetIdsFromByteCode(Collections& collections, |
| const CodeItem* code, |
| std::vector<TypeId*>* type_ids, |
| std::vector<StringId*>* string_ids, |
| std::vector<MethodId*>* method_ids, |
| std::vector<FieldId*>* field_ids) { |
| bool has_id = false; |
| // Iterate over all instructions. |
| const uint16_t* insns = code->Insns(); |
| for (uint32_t insn_idx = 0; insn_idx < code->InsnsSize();) { |
| const Instruction* instruction = Instruction::At(&insns[insn_idx]); |
| const uint32_t insn_width = instruction->SizeInCodeUnits(); |
| if (insn_width == 0) { |
| break; |
| } |
| has_id |= GetIdFromInstruction(collections, |
| instruction, |
| type_ids, |
| string_ids, |
| method_ids, |
| field_ids); |
| insn_idx += insn_width; |
| } // for |
| return has_id; |
| } |
| |
| EncodedValue* Collections::ReadEncodedValue(const uint8_t** data) { |
| const uint8_t encoded_value = *(*data)++; |
| const uint8_t type = encoded_value & 0x1f; |
| EncodedValue* item = new EncodedValue(type); |
| ReadEncodedValue(data, type, encoded_value >> 5, item); |
| return item; |
| } |
| |
| EncodedValue* Collections::ReadEncodedValue(const uint8_t** data, uint8_t type, uint8_t length) { |
| EncodedValue* item = new EncodedValue(type); |
| ReadEncodedValue(data, type, length, item); |
| return item; |
| } |
| |
| void Collections::ReadEncodedValue( |
| const uint8_t** data, uint8_t type, uint8_t length, EncodedValue* item) { |
| switch (type) { |
| case DexFile::kDexAnnotationByte: |
| item->SetByte(static_cast<int8_t>(ReadVarWidth(data, length, false))); |
| break; |
| case DexFile::kDexAnnotationShort: |
| item->SetShort(static_cast<int16_t>(ReadVarWidth(data, length, true))); |
| break; |
| case DexFile::kDexAnnotationChar: |
| item->SetChar(static_cast<uint16_t>(ReadVarWidth(data, length, false))); |
| break; |
| case DexFile::kDexAnnotationInt: |
| item->SetInt(static_cast<int32_t>(ReadVarWidth(data, length, true))); |
| break; |
| case DexFile::kDexAnnotationLong: |
| item->SetLong(static_cast<int64_t>(ReadVarWidth(data, length, true))); |
| break; |
| case DexFile::kDexAnnotationFloat: { |
| // Fill on right. |
| union { |
| float f; |
| uint32_t data; |
| } conv; |
| conv.data = static_cast<uint32_t>(ReadVarWidth(data, length, false)) << (3 - length) * 8; |
| item->SetFloat(conv.f); |
| break; |
| } |
| case DexFile::kDexAnnotationDouble: { |
| // Fill on right. |
| union { |
| double d; |
| uint64_t data; |
| } conv; |
| conv.data = ReadVarWidth(data, length, false) << (7 - length) * 8; |
| item->SetDouble(conv.d); |
| break; |
| } |
| case DexFile::kDexAnnotationString: { |
| const uint32_t string_index = static_cast<uint32_t>(ReadVarWidth(data, length, false)); |
| item->SetStringId(GetStringId(string_index)); |
| break; |
| } |
| case DexFile::kDexAnnotationType: { |
| const uint32_t string_index = static_cast<uint32_t>(ReadVarWidth(data, length, false)); |
| item->SetTypeId(GetTypeId(string_index)); |
| break; |
| } |
| case DexFile::kDexAnnotationField: |
| case DexFile::kDexAnnotationEnum: { |
| const uint32_t field_index = static_cast<uint32_t>(ReadVarWidth(data, length, false)); |
| item->SetFieldId(GetFieldId(field_index)); |
| break; |
| } |
| case DexFile::kDexAnnotationMethod: { |
| const uint32_t method_index = static_cast<uint32_t>(ReadVarWidth(data, length, false)); |
| item->SetMethodId(GetMethodId(method_index)); |
| break; |
| } |
| case DexFile::kDexAnnotationArray: { |
| EncodedValueVector* values = new EncodedValueVector(); |
| const uint32_t size = DecodeUnsignedLeb128(data); |
| // Decode all elements. |
| for (uint32_t i = 0; i < size; i++) { |
| values->push_back(std::unique_ptr<EncodedValue>(ReadEncodedValue(data))); |
| } |
| item->SetEncodedArray(new EncodedArrayItem(values)); |
| break; |
| } |
| case DexFile::kDexAnnotationAnnotation: { |
| AnnotationElementVector* elements = new AnnotationElementVector(); |
| const uint32_t type_idx = DecodeUnsignedLeb128(data); |
| const uint32_t size = DecodeUnsignedLeb128(data); |
| // Decode all name=value pairs. |
| for (uint32_t i = 0; i < size; i++) { |
| const uint32_t name_index = DecodeUnsignedLeb128(data); |
| elements->push_back(std::unique_ptr<AnnotationElement>( |
| new AnnotationElement(GetStringId(name_index), ReadEncodedValue(data)))); |
| } |
| item->SetEncodedAnnotation(new EncodedAnnotation(GetTypeId(type_idx), elements)); |
| break; |
| } |
| case DexFile::kDexAnnotationNull: |
| break; |
| case DexFile::kDexAnnotationBoolean: |
| item->SetBoolean(length != 0); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| void Collections::CreateStringId(const DexFile& dex_file, uint32_t i) { |
| const DexFile::StringId& disk_string_id = dex_file.GetStringId(dex::StringIndex(i)); |
| StringData* string_data = new StringData(dex_file.GetStringData(disk_string_id)); |
| string_datas_.AddItem(string_data, disk_string_id.string_data_off_); |
| |
| StringId* string_id = new StringId(string_data); |
| string_ids_.AddIndexedItem(string_id, StringIdsOffset() + i * StringId::ItemSize(), i); |
| } |
| |
| void Collections::CreateTypeId(const DexFile& dex_file, uint32_t i) { |
| const DexFile::TypeId& disk_type_id = dex_file.GetTypeId(dex::TypeIndex(i)); |
| TypeId* type_id = new TypeId(GetStringId(disk_type_id.descriptor_idx_.index_)); |
| type_ids_.AddIndexedItem(type_id, TypeIdsOffset() + i * TypeId::ItemSize(), i); |
| } |
| |
| void Collections::CreateProtoId(const DexFile& dex_file, uint32_t i) { |
| const DexFile::ProtoId& disk_proto_id = dex_file.GetProtoId(i); |
| const DexFile::TypeList* type_list = dex_file.GetProtoParameters(disk_proto_id); |
| TypeList* parameter_type_list = CreateTypeList(type_list, disk_proto_id.parameters_off_); |
| |
| ProtoId* proto_id = new ProtoId(GetStringId(disk_proto_id.shorty_idx_.index_), |
| GetTypeId(disk_proto_id.return_type_idx_.index_), |
| parameter_type_list); |
| proto_ids_.AddIndexedItem(proto_id, ProtoIdsOffset() + i * ProtoId::ItemSize(), i); |
| } |
| |
| void Collections::CreateFieldId(const DexFile& dex_file, uint32_t i) { |
| const DexFile::FieldId& disk_field_id = dex_file.GetFieldId(i); |
| FieldId* field_id = new FieldId(GetTypeId(disk_field_id.class_idx_.index_), |
| GetTypeId(disk_field_id.type_idx_.index_), |
| GetStringId(disk_field_id.name_idx_.index_)); |
| field_ids_.AddIndexedItem(field_id, FieldIdsOffset() + i * FieldId::ItemSize(), i); |
| } |
| |
| void Collections::CreateMethodId(const DexFile& dex_file, uint32_t i) { |
| const DexFile::MethodId& disk_method_id = dex_file.GetMethodId(i); |
| MethodId* method_id = new MethodId(GetTypeId(disk_method_id.class_idx_.index_), |
| GetProtoId(disk_method_id.proto_idx_), |
| GetStringId(disk_method_id.name_idx_.index_)); |
| method_ids_.AddIndexedItem(method_id, MethodIdsOffset() + i * MethodId::ItemSize(), i); |
| } |
| |
| void Collections::CreateClassDef(const DexFile& dex_file, uint32_t i) { |
| const DexFile::ClassDef& disk_class_def = dex_file.GetClassDef(i); |
| const TypeId* class_type = GetTypeId(disk_class_def.class_idx_.index_); |
| uint32_t access_flags = disk_class_def.access_flags_; |
| const TypeId* superclass = GetTypeIdOrNullPtr(disk_class_def.superclass_idx_.index_); |
| |
| const DexFile::TypeList* type_list = dex_file.GetInterfacesList(disk_class_def); |
| TypeList* interfaces_type_list = CreateTypeList(type_list, disk_class_def.interfaces_off_); |
| |
| const StringId* source_file = GetStringIdOrNullPtr(disk_class_def.source_file_idx_.index_); |
| // Annotations. |
| AnnotationsDirectoryItem* annotations = nullptr; |
| const DexFile::AnnotationsDirectoryItem* disk_annotations_directory_item = |
| dex_file.GetAnnotationsDirectory(disk_class_def); |
| if (disk_annotations_directory_item != nullptr) { |
| annotations = CreateAnnotationsDirectoryItem( |
| dex_file, disk_annotations_directory_item, disk_class_def.annotations_off_); |
| } |
| // Static field initializers. |
| const uint8_t* static_data = dex_file.GetEncodedStaticFieldValuesArray(disk_class_def); |
| EncodedArrayItem* static_values = |
| CreateEncodedArrayItem(static_data, disk_class_def.static_values_off_); |
| ClassData* class_data = CreateClassData( |
| dex_file, dex_file.GetClassData(disk_class_def), disk_class_def.class_data_off_); |
| ClassDef* class_def = new ClassDef(class_type, access_flags, superclass, interfaces_type_list, |
| source_file, annotations, static_values, class_data); |
| class_defs_.AddIndexedItem(class_def, ClassDefsOffset() + i * ClassDef::ItemSize(), i); |
| } |
| |
| TypeList* Collections::CreateTypeList(const DexFile::TypeList* dex_type_list, uint32_t offset) { |
| if (dex_type_list == nullptr) { |
| return nullptr; |
| } |
| auto found_type_list = TypeLists().find(offset); |
| if (found_type_list != TypeLists().end()) { |
| return found_type_list->second.get(); |
| } |
| TypeIdVector* type_vector = new TypeIdVector(); |
| uint32_t size = dex_type_list->Size(); |
| for (uint32_t index = 0; index < size; ++index) { |
| type_vector->push_back(GetTypeId(dex_type_list->GetTypeItem(index).type_idx_.index_)); |
| } |
| TypeList* new_type_list = new TypeList(type_vector); |
| type_lists_.AddItem(new_type_list, offset); |
| return new_type_list; |
| } |
| |
| EncodedArrayItem* Collections::CreateEncodedArrayItem(const uint8_t* static_data, uint32_t offset) { |
| if (static_data == nullptr) { |
| return nullptr; |
| } |
| auto found_encoded_array_item = EncodedArrayItems().find(offset); |
| if (found_encoded_array_item != EncodedArrayItems().end()) { |
| return found_encoded_array_item->second.get(); |
| } |
| uint32_t size = DecodeUnsignedLeb128(&static_data); |
| EncodedValueVector* values = new EncodedValueVector(); |
| for (uint32_t i = 0; i < size; ++i) { |
| values->push_back(std::unique_ptr<EncodedValue>(ReadEncodedValue(&static_data))); |
| } |
| // TODO: Calculate the size of the encoded array. |
| EncodedArrayItem* encoded_array_item = new EncodedArrayItem(values); |
| encoded_array_items_.AddItem(encoded_array_item, offset); |
| return encoded_array_item; |
| } |
| |
| AnnotationItem* Collections::CreateAnnotationItem(const DexFile::AnnotationItem* annotation, |
| uint32_t offset) { |
| auto found_annotation_item = AnnotationItems().find(offset); |
| if (found_annotation_item != AnnotationItems().end()) { |
| return found_annotation_item->second.get(); |
| } |
| uint8_t visibility = annotation->visibility_; |
| const uint8_t* annotation_data = annotation->annotation_; |
| EncodedValue* encoded_value = |
| ReadEncodedValue(&annotation_data, DexFile::kDexAnnotationAnnotation, 0); |
| // TODO: Calculate the size of the annotation. |
| AnnotationItem* annotation_item = |
| new AnnotationItem(visibility, encoded_value->ReleaseEncodedAnnotation()); |
| annotation_items_.AddItem(annotation_item, offset); |
| return annotation_item; |
| } |
| |
| |
| AnnotationSetItem* Collections::CreateAnnotationSetItem(const DexFile& dex_file, |
| const DexFile::AnnotationSetItem* disk_annotations_item, uint32_t offset) { |
| if (disk_annotations_item == nullptr || (disk_annotations_item->size_ == 0 && offset == 0)) { |
| return nullptr; |
| } |
| auto found_anno_set_item = AnnotationSetItems().find(offset); |
| if (found_anno_set_item != AnnotationSetItems().end()) { |
| return found_anno_set_item->second.get(); |
| } |
| std::vector<AnnotationItem*>* items = new std::vector<AnnotationItem*>(); |
| for (uint32_t i = 0; i < disk_annotations_item->size_; ++i) { |
| const DexFile::AnnotationItem* annotation = |
| dex_file.GetAnnotationItem(disk_annotations_item, i); |
| if (annotation == nullptr) { |
| continue; |
| } |
| AnnotationItem* annotation_item = |
| CreateAnnotationItem(annotation, disk_annotations_item->entries_[i]); |
| items->push_back(annotation_item); |
| } |
| AnnotationSetItem* annotation_set_item = new AnnotationSetItem(items); |
| annotation_set_items_.AddItem(annotation_set_item, offset); |
| return annotation_set_item; |
| } |
| |
| AnnotationsDirectoryItem* Collections::CreateAnnotationsDirectoryItem(const DexFile& dex_file, |
| const DexFile::AnnotationsDirectoryItem* disk_annotations_item, uint32_t offset) { |
| auto found_anno_dir_item = AnnotationsDirectoryItems().find(offset); |
| if (found_anno_dir_item != AnnotationsDirectoryItems().end()) { |
| return found_anno_dir_item->second.get(); |
| } |
| const DexFile::AnnotationSetItem* class_set_item = |
| dex_file.GetClassAnnotationSet(disk_annotations_item); |
| AnnotationSetItem* class_annotation = nullptr; |
| if (class_set_item != nullptr) { |
| uint32_t offset = disk_annotations_item->class_annotations_off_; |
| class_annotation = CreateAnnotationSetItem(dex_file, class_set_item, offset); |
| } |
| const DexFile::FieldAnnotationsItem* fields = |
| dex_file.GetFieldAnnotations(disk_annotations_item); |
| FieldAnnotationVector* field_annotations = nullptr; |
| if (fields != nullptr) { |
| field_annotations = new FieldAnnotationVector(); |
| for (uint32_t i = 0; i < disk_annotations_item->fields_size_; ++i) { |
| FieldId* field_id = GetFieldId(fields[i].field_idx_); |
| const DexFile::AnnotationSetItem* field_set_item = |
| dex_file.GetFieldAnnotationSetItem(fields[i]); |
| uint32_t annotation_set_offset = fields[i].annotations_off_; |
| AnnotationSetItem* annotation_set_item = |
| CreateAnnotationSetItem(dex_file, field_set_item, annotation_set_offset); |
| field_annotations->push_back(std::unique_ptr<FieldAnnotation>( |
| new FieldAnnotation(field_id, annotation_set_item))); |
| } |
| } |
| const DexFile::MethodAnnotationsItem* methods = |
| dex_file.GetMethodAnnotations(disk_annotations_item); |
| MethodAnnotationVector* method_annotations = nullptr; |
| if (methods != nullptr) { |
| method_annotations = new MethodAnnotationVector(); |
| for (uint32_t i = 0; i < disk_annotations_item->methods_size_; ++i) { |
| MethodId* method_id = GetMethodId(methods[i].method_idx_); |
| const DexFile::AnnotationSetItem* method_set_item = |
| dex_file.GetMethodAnnotationSetItem(methods[i]); |
| uint32_t annotation_set_offset = methods[i].annotations_off_; |
| AnnotationSetItem* annotation_set_item = |
| CreateAnnotationSetItem(dex_file, method_set_item, annotation_set_offset); |
| method_annotations->push_back(std::unique_ptr<MethodAnnotation>( |
| new MethodAnnotation(method_id, annotation_set_item))); |
| } |
| } |
| const DexFile::ParameterAnnotationsItem* parameters = |
| dex_file.GetParameterAnnotations(disk_annotations_item); |
| ParameterAnnotationVector* parameter_annotations = nullptr; |
| if (parameters != nullptr) { |
| parameter_annotations = new ParameterAnnotationVector(); |
| for (uint32_t i = 0; i < disk_annotations_item->parameters_size_; ++i) { |
| MethodId* method_id = GetMethodId(parameters[i].method_idx_); |
| const DexFile::AnnotationSetRefList* list = |
| dex_file.GetParameterAnnotationSetRefList(¶meters[i]); |
| parameter_annotations->push_back(std::unique_ptr<ParameterAnnotation>( |
| GenerateParameterAnnotation(dex_file, method_id, list, parameters[i].annotations_off_))); |
| } |
| } |
| // TODO: Calculate the size of the annotations directory. |
| AnnotationsDirectoryItem* annotations_directory_item = new AnnotationsDirectoryItem( |
| class_annotation, field_annotations, method_annotations, parameter_annotations); |
| annotations_directory_items_.AddItem(annotations_directory_item, offset); |
| return annotations_directory_item; |
| } |
| |
| ParameterAnnotation* Collections::GenerateParameterAnnotation( |
| const DexFile& dex_file, MethodId* method_id, |
| const DexFile::AnnotationSetRefList* annotation_set_ref_list, uint32_t offset) { |
| AnnotationSetRefList* set_ref_list = nullptr; |
| auto found_set_ref_list = AnnotationSetRefLists().find(offset); |
| if (found_set_ref_list != AnnotationSetRefLists().end()) { |
| set_ref_list = found_set_ref_list->second.get(); |
| } |
| if (set_ref_list == nullptr) { |
| std::vector<AnnotationSetItem*>* annotations = new std::vector<AnnotationSetItem*>(); |
| for (uint32_t i = 0; i < annotation_set_ref_list->size_; ++i) { |
| const DexFile::AnnotationSetItem* annotation_set_item = |
| dex_file.GetSetRefItemItem(&annotation_set_ref_list->list_[i]); |
| uint32_t set_offset = annotation_set_ref_list->list_[i].annotations_off_; |
| annotations->push_back(CreateAnnotationSetItem(dex_file, annotation_set_item, set_offset)); |
| } |
| set_ref_list = new AnnotationSetRefList(annotations); |
| annotation_set_ref_lists_.AddItem(set_ref_list, offset); |
| } |
| return new ParameterAnnotation(method_id, set_ref_list); |
| } |
| |
| CodeItem* Collections::CreateCodeItem(const DexFile& dex_file, |
| const DexFile::CodeItem& disk_code_item, uint32_t offset) { |
| uint16_t registers_size = disk_code_item.registers_size_; |
| uint16_t ins_size = disk_code_item.ins_size_; |
| uint16_t outs_size = disk_code_item.outs_size_; |
| uint32_t tries_size = disk_code_item.tries_size_; |
| |
| // TODO: Calculate the size of the debug info. |
| const uint8_t* debug_info_stream = dex_file.GetDebugInfoStream(&disk_code_item); |
| DebugInfoItem* debug_info = nullptr; |
| if (debug_info_stream != nullptr) { |
| debug_info = debug_info_items_.GetExistingObject(disk_code_item.debug_info_off_); |
| if (debug_info == nullptr) { |
| uint32_t debug_info_size = GetDebugInfoStreamSize(debug_info_stream); |
| uint8_t* debug_info_buffer = new uint8_t[debug_info_size]; |
| memcpy(debug_info_buffer, debug_info_stream, debug_info_size); |
| debug_info = new DebugInfoItem(debug_info_size, debug_info_buffer); |
| debug_info_items_.AddItem(debug_info, disk_code_item.debug_info_off_); |
| } |
| } |
| |
| uint32_t insns_size = disk_code_item.insns_size_in_code_units_; |
| uint16_t* insns = new uint16_t[insns_size]; |
| memcpy(insns, disk_code_item.insns_, insns_size * sizeof(uint16_t)); |
| |
| TryItemVector* tries = nullptr; |
| CatchHandlerVector* handler_list = nullptr; |
| if (tries_size > 0) { |
| tries = new TryItemVector(); |
| handler_list = new CatchHandlerVector(); |
| for (uint32_t i = 0; i < tries_size; ++i) { |
| const DexFile::TryItem* disk_try_item = dex_file.GetTryItems(disk_code_item, i); |
| uint32_t start_addr = disk_try_item->start_addr_; |
| uint16_t insn_count = disk_try_item->insn_count_; |
| uint16_t handler_off = disk_try_item->handler_off_; |
| const CatchHandler* handlers = nullptr; |
| for (std::unique_ptr<const CatchHandler>& existing_handlers : *handler_list) { |
| if (handler_off == existing_handlers->GetListOffset()) { |
| handlers = existing_handlers.get(); |
| break; |
| } |
| } |
| if (handlers == nullptr) { |
| bool catch_all = false; |
| TypeAddrPairVector* addr_pairs = new TypeAddrPairVector(); |
| for (CatchHandlerIterator it(disk_code_item, *disk_try_item); it.HasNext(); it.Next()) { |
| const dex::TypeIndex type_index = it.GetHandlerTypeIndex(); |
| const TypeId* type_id = GetTypeIdOrNullPtr(type_index.index_); |
| catch_all |= type_id == nullptr; |
| addr_pairs->push_back(std::unique_ptr<const TypeAddrPair>( |
| new TypeAddrPair(type_id, it.GetHandlerAddress()))); |
| } |
| handlers = new CatchHandler(catch_all, handler_off, addr_pairs); |
| handler_list->push_back(std::unique_ptr<const CatchHandler>(handlers)); |
| } |
| TryItem* try_item = new TryItem(start_addr, insn_count, handlers); |
| tries->push_back(std::unique_ptr<const TryItem>(try_item)); |
| } |
| // Manually walk catch handlers list and add any missing handlers unreferenced by try items. |
| const uint8_t* handlers_base = DexFile::GetCatchHandlerData(disk_code_item, 0); |
| const uint8_t* handlers_data = handlers_base; |
| uint32_t handlers_size = DecodeUnsignedLeb128(&handlers_data); |
| while (handlers_size > handler_list->size()) { |
| bool already_added = false; |
| uint16_t handler_off = handlers_data - handlers_base; |
| for (std::unique_ptr<const CatchHandler>& existing_handlers : *handler_list) { |
| if (handler_off == existing_handlers->GetListOffset()) { |
| already_added = true; |
| break; |
| } |
| } |
| int32_t size = DecodeSignedLeb128(&handlers_data); |
| bool has_catch_all = size < 0; |
| if (has_catch_all) { |
| size = -size; |
| } |
| if (already_added) { |
| for (int32_t i = 0; i < size; i++) { |
| DecodeUnsignedLeb128(&handlers_data); |
| DecodeUnsignedLeb128(&handlers_data); |
| } |
| if (has_catch_all) { |
| DecodeUnsignedLeb128(&handlers_data); |
| } |
| continue; |
| } |
| TypeAddrPairVector* addr_pairs = new TypeAddrPairVector(); |
| for (int32_t i = 0; i < size; i++) { |
| const TypeId* type_id = GetTypeIdOrNullPtr(DecodeUnsignedLeb128(&handlers_data)); |
| uint32_t addr = DecodeUnsignedLeb128(&handlers_data); |
| addr_pairs->push_back( |
| std::unique_ptr<const TypeAddrPair>(new TypeAddrPair(type_id, addr))); |
| } |
| if (has_catch_all) { |
| uint32_t addr = DecodeUnsignedLeb128(&handlers_data); |
| addr_pairs->push_back( |
| std::unique_ptr<const TypeAddrPair>(new TypeAddrPair(nullptr, addr))); |
| } |
| const CatchHandler* handler = new CatchHandler(has_catch_all, handler_off, addr_pairs); |
| handler_list->push_back(std::unique_ptr<const CatchHandler>(handler)); |
| } |
| } |
| |
| uint32_t size = GetCodeItemSize(dex_file, disk_code_item); |
| CodeItem* code_item = new CodeItem( |
| registers_size, ins_size, outs_size, debug_info, insns_size, insns, tries, handler_list); |
| code_item->SetSize(size); |
| code_items_.AddItem(code_item, offset); |
| // Add "fixup" references to types, strings, methods, and fields. |
| // This is temporary, as we will probably want more detailed parsing of the |
| // instructions here. |
| std::unique_ptr<std::vector<TypeId*>> type_ids(new std::vector<TypeId*>()); |
| std::unique_ptr<std::vector<StringId*>> string_ids(new std::vector<StringId*>()); |
| std::unique_ptr<std::vector<MethodId*>> method_ids(new std::vector<MethodId*>()); |
| std::unique_ptr<std::vector<FieldId*>> field_ids(new std::vector<FieldId*>()); |
| if (GetIdsFromByteCode(*this, |
| code_item, |
| type_ids.get(), |
| string_ids.get(), |
| method_ids.get(), |
| field_ids.get())) { |
| CodeFixups* fixups = new CodeFixups(type_ids.release(), |
| string_ids.release(), |
| method_ids.release(), |
| field_ids.release()); |
| code_item->SetCodeFixups(fixups); |
| } |
| |
| return code_item; |
| } |
| |
| MethodItem* Collections::GenerateMethodItem(const DexFile& dex_file, ClassDataItemIterator& cdii) { |
| MethodId* method_item = GetMethodId(cdii.GetMemberIndex()); |
| uint32_t access_flags = cdii.GetRawMemberAccessFlags(); |
| const DexFile::CodeItem* disk_code_item = cdii.GetMethodCodeItem(); |
| CodeItem* code_item = nullptr; |
| DebugInfoItem* debug_info = nullptr; |
| if (disk_code_item != nullptr) { |
| code_item = CreateCodeItem(dex_file, *disk_code_item, cdii.GetMethodCodeItemOffset()); |
| debug_info = code_item->DebugInfo(); |
| } |
| if (debug_info != nullptr) { |
| bool is_static = (access_flags & kAccStatic) != 0; |
| dex_file.DecodeDebugLocalInfo( |
| disk_code_item, is_static, cdii.GetMemberIndex(), GetLocalsCb, debug_info); |
| dex_file.DecodeDebugPositionInfo(disk_code_item, GetPositionsCb, debug_info); |
| } |
| return new MethodItem(access_flags, method_item, code_item); |
| } |
| |
| ClassData* Collections::CreateClassData( |
| const DexFile& dex_file, const uint8_t* encoded_data, uint32_t offset) { |
| // Read the fields and methods defined by the class, resolving the circular reference from those |
| // to classes by setting class at the same time. |
| ClassData* class_data = class_datas_.GetExistingObject(offset); |
| if (class_data == nullptr && encoded_data != nullptr) { |
| ClassDataItemIterator cdii(dex_file, encoded_data); |
| // Static fields. |
| FieldItemVector* static_fields = new FieldItemVector(); |
| for (uint32_t i = 0; cdii.HasNextStaticField(); i++, cdii.Next()) { |
| FieldId* field_item = GetFieldId(cdii.GetMemberIndex()); |
| uint32_t access_flags = cdii.GetRawMemberAccessFlags(); |
| static_fields->push_back(std::unique_ptr<FieldItem>(new FieldItem(access_flags, field_item))); |
| } |
| // Instance fields. |
| FieldItemVector* instance_fields = new FieldItemVector(); |
| for (uint32_t i = 0; cdii.HasNextInstanceField(); i++, cdii.Next()) { |
| FieldId* field_item = GetFieldId(cdii.GetMemberIndex()); |
| uint32_t access_flags = cdii.GetRawMemberAccessFlags(); |
| instance_fields->push_back( |
| std::unique_ptr<FieldItem>(new FieldItem(access_flags, field_item))); |
| } |
| // Direct methods. |
| MethodItemVector* direct_methods = new MethodItemVector(); |
| for (uint32_t i = 0; cdii.HasNextDirectMethod(); i++, cdii.Next()) { |
| direct_methods->push_back( |
| std::unique_ptr<MethodItem>(GenerateMethodItem(dex_file, cdii))); |
| } |
| // Virtual methods. |
| MethodItemVector* virtual_methods = new MethodItemVector(); |
| for (uint32_t i = 0; cdii.HasNextVirtualMethod(); i++, cdii.Next()) { |
| virtual_methods->push_back( |
| std::unique_ptr<MethodItem>(GenerateMethodItem(dex_file, cdii))); |
| } |
| class_data = new ClassData(static_fields, instance_fields, direct_methods, virtual_methods); |
| class_data->SetSize(cdii.EndDataPointer() - encoded_data); |
| class_datas_.AddItem(class_data, offset); |
| } |
| return class_data; |
| } |
| |
| } // namespace dex_ir |
| } // namespace art |