| // Copyright 2011 Google Inc. All Rights Reserved. |
| |
| #include "oat_writer.h" |
| |
| #include "class_linker.h" |
| #include "class_loader.h" |
| #include "file.h" |
| #include "os.h" |
| #include "stl_util.h" |
| |
| namespace art { |
| |
| bool OatWriter::Create(File* file, |
| const ClassLoader* class_loader, |
| const Compiler& compiler) { |
| const std::vector<const DexFile*>& dex_files = ClassLoader::GetCompileTimeClassPath(class_loader); |
| OatWriter oat_writer(dex_files, class_loader, compiler); |
| return oat_writer.Write(file); |
| } |
| |
| OatWriter::OatWriter(const std::vector<const DexFile*>& dex_files, |
| const ClassLoader* class_loader, |
| const Compiler& compiler) { |
| compiler_ = &compiler; |
| class_loader_ = class_loader; |
| dex_files_ = &dex_files; |
| oat_header_ = NULL; |
| executable_offset_padding_length_ = 0; |
| |
| size_t offset = InitOatHeader(); |
| offset = InitOatDexFiles(offset); |
| offset = InitDexFiles(offset); |
| offset = InitOatClasses(offset); |
| offset = InitOatCode(offset); |
| offset = InitOatCodeDexFiles(offset); |
| |
| CHECK_EQ(dex_files_->size(), oat_dex_files_.size()); |
| } |
| |
| OatWriter::~OatWriter() { |
| delete oat_header_; |
| STLDeleteElements(&oat_dex_files_); |
| STLDeleteElements(&oat_classes_); |
| } |
| |
| size_t OatWriter::InitOatHeader() { |
| // create the OatHeader |
| oat_header_ = new OatHeader(dex_files_); |
| size_t offset = sizeof(*oat_header_); |
| return offset; |
| } |
| |
| size_t OatWriter::InitOatDexFiles(size_t offset) { |
| // create the OatDexFiles |
| for (size_t i = 0; i != dex_files_->size(); ++i) { |
| const DexFile* dex_file = (*dex_files_)[i]; |
| CHECK(dex_file != NULL); |
| OatDexFile* oat_dex_file = new OatDexFile(*dex_file); |
| oat_dex_files_.push_back(oat_dex_file); |
| offset += oat_dex_file->SizeOf(); |
| } |
| return offset; |
| } |
| |
| size_t OatWriter::InitDexFiles(size_t offset) { |
| // calculate the offsets within OatDexFiles to the DexFiles |
| for (size_t i = 0; i != dex_files_->size(); ++i) { |
| // dex files are required to be 4 byte aligned |
| offset = RoundUp(offset, 4); |
| |
| // set offset in OatDexFile to DexFile |
| oat_dex_files_[i]->dex_file_offset_ = offset; |
| |
| const DexFile* dex_file = (*dex_files_)[i]; |
| offset += dex_file->GetHeader().file_size_; |
| } |
| return offset; |
| } |
| |
| size_t OatWriter::InitOatClasses(size_t offset) { |
| // create the OatClasses |
| // calculate the offsets within OatDexFiles to OatClasses |
| size_t class_index = 0; |
| for (size_t i = 0; i != dex_files_->size(); ++i) { |
| const DexFile* dex_file = (*dex_files_)[i]; |
| for (size_t class_def_index = 0; |
| class_def_index < dex_file->NumClassDefs(); |
| class_def_index++, class_index++) { |
| oat_dex_files_[i]->methods_offsets_[class_def_index] = offset; |
| const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); |
| const byte* class_data = dex_file->GetClassData(class_def); |
| uint32_t num_methods = 0; |
| if (class_data != NULL) { // ie not an empty class, such as a marker interface |
| ClassDataItemIterator it(*dex_file, class_data); |
| size_t num_direct_methods = it.NumDirectMethods(); |
| size_t num_virtual_methods = it.NumVirtualMethods(); |
| num_methods = num_direct_methods + num_virtual_methods; |
| } |
| |
| CompiledClass* compiled_class = |
| compiler_->GetCompiledClass(art::Compiler::MethodReference(dex_file, class_def_index)); |
| Class::Status status = |
| (compiled_class != NULL) ? compiled_class->GetStatus() : Class::kStatusNotReady; |
| |
| OatClass* oat_class = new OatClass(status, num_methods); |
| oat_classes_.push_back(oat_class); |
| offset += oat_class->SizeOf(); |
| } |
| oat_dex_files_[i]->UpdateChecksum(*oat_header_); |
| } |
| return offset; |
| } |
| |
| size_t OatWriter::InitOatCode(size_t offset) { |
| // calculate the offsets within OatHeader to executable code |
| size_t old_offset = offset; |
| // required to be on a new page boundary |
| offset = RoundUp(offset, kPageSize); |
| oat_header_->SetExecutableOffset(offset); |
| executable_offset_padding_length_ = offset - old_offset; |
| return offset; |
| } |
| |
| size_t OatWriter::InitOatCodeDexFiles(size_t offset) { |
| size_t oat_class_index = 0; |
| for (size_t i = 0; i != dex_files_->size(); ++i) { |
| const DexFile* dex_file = (*dex_files_)[i]; |
| CHECK(dex_file != NULL); |
| offset = InitOatCodeDexFile(offset, oat_class_index, *dex_file); |
| } |
| return offset; |
| } |
| |
| size_t OatWriter::InitOatCodeDexFile(size_t offset, |
| size_t& oat_class_index, |
| const DexFile& dex_file) { |
| for (size_t class_def_index = 0; |
| class_def_index < dex_file.NumClassDefs(); |
| class_def_index++, oat_class_index++) { |
| const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| offset = InitOatCodeClassDef(offset, oat_class_index, dex_file, class_def); |
| oat_classes_[oat_class_index]->UpdateChecksum(*oat_header_); |
| } |
| return offset; |
| } |
| |
| size_t OatWriter::InitOatCodeClassDef(size_t offset, |
| size_t oat_class_index, |
| const DexFile& dex_file, |
| const DexFile::ClassDef& class_def) { |
| const byte* class_data = dex_file.GetClassData(class_def); |
| if (class_data == NULL) { |
| // empty class, such as a marker interface |
| return offset; |
| } |
| ClassDataItemIterator it(dex_file, class_data); |
| CHECK_EQ(oat_classes_[oat_class_index]->method_offsets_.size(), |
| it.NumDirectMethods() + it.NumVirtualMethods()); |
| // Skip fields |
| while (it.HasNextStaticField()) { |
| it.Next(); |
| } |
| while (it.HasNextInstanceField()) { |
| it.Next(); |
| } |
| // Process methods |
| size_t class_def_method_index = 0; |
| while (it.HasNextDirectMethod()) { |
| bool is_static = (it.GetMemberAccessFlags() & kAccStatic) != 0; |
| offset = InitOatCodeMethod(offset, oat_class_index, class_def_method_index, is_static, true, |
| it.GetMemberIndex(), &dex_file); |
| class_def_method_index++; |
| it.Next(); |
| } |
| while (it.HasNextVirtualMethod()) { |
| CHECK_EQ(it.GetMemberAccessFlags() & kAccStatic, 0U); |
| offset = InitOatCodeMethod(offset, oat_class_index, class_def_method_index, false, false, |
| it.GetMemberIndex(), &dex_file); |
| class_def_method_index++; |
| it.Next(); |
| } |
| DCHECK(!it.HasNext()); |
| return offset; |
| } |
| |
| size_t OatWriter::InitOatCodeMethod(size_t offset, size_t oat_class_index, |
| size_t class_def_method_index, bool is_static, bool is_direct, |
| uint32_t method_idx, const DexFile* dex_file) { |
| // derived from CompiledMethod if available |
| uint32_t code_offset = 0; |
| uint32_t frame_size_in_bytes = kStackAlignment; |
| uint32_t core_spill_mask = 0; |
| uint32_t fp_spill_mask = 0; |
| uint32_t mapping_table_offset = 0; |
| uint32_t vmap_table_offset = 0; |
| // derived from CompiledInvokeStub if available |
| uint32_t invoke_stub_offset = 0; |
| |
| CompiledMethod* compiled_method = |
| compiler_->GetCompiledMethod(art::Compiler::MethodReference(dex_file, method_idx)); |
| if (compiled_method != NULL) { |
| offset = compiled_method->AlignCode(offset); |
| DCHECK_ALIGNED(offset, kArmAlignment); |
| const std::vector<uint8_t>& code = compiled_method->GetCode(); |
| size_t code_size = code.size() * sizeof(code[0]); |
| uint32_t thumb_offset = compiled_method->CodeDelta(); |
| code_offset = (code_size == 0) ? 0 : offset + thumb_offset; |
| |
| // Deduplicate code arrays |
| std::map<const std::vector<uint8_t>*, uint32_t>::iterator code_iter = code_offsets_.find(&code); |
| if (code_iter != code_offsets_.end()) { |
| code_offset = code_iter->second; |
| } else { |
| code_offsets_.insert(std::pair<const std::vector<uint8_t>*, uint32_t>(&code, code_offset)); |
| offset += code_size; |
| oat_header_->UpdateChecksum(&code[0], code_size); |
| } |
| |
| frame_size_in_bytes = compiled_method->GetFrameSizeInBytes(); |
| core_spill_mask = compiled_method->GetCoreSpillMask(); |
| fp_spill_mask = compiled_method->GetFpSpillMask(); |
| } |
| |
| offset += sizeof(frame_size_in_bytes); |
| oat_header_->UpdateChecksum(&frame_size_in_bytes, sizeof(frame_size_in_bytes)); |
| |
| offset += sizeof(core_spill_mask); |
| oat_header_->UpdateChecksum(&core_spill_mask, sizeof(core_spill_mask)); |
| |
| offset += sizeof(fp_spill_mask); |
| oat_header_->UpdateChecksum(&fp_spill_mask, sizeof(fp_spill_mask)); |
| |
| if (compiled_method != NULL) { |
| const std::vector<uint32_t>& mapping_table = compiled_method->GetMappingTable(); |
| size_t mapping_table_size = mapping_table.size() * sizeof(mapping_table[0]); |
| mapping_table_offset = (mapping_table_size == 0) ? 0 : offset; |
| |
| // Deduplicate mapping tables |
| std::map<const std::vector<uint32_t>*, uint32_t>::iterator mapping_iter = mapping_table_offsets_.find(&mapping_table); |
| if (mapping_iter != mapping_table_offsets_.end()) { |
| mapping_table_offset = mapping_iter->second; |
| } else { |
| mapping_table_offsets_.insert(std::pair<const std::vector<uint32_t>*, uint32_t>(&mapping_table, mapping_table_offset)); |
| offset += mapping_table_size; |
| oat_header_->UpdateChecksum(&mapping_table[0], mapping_table_size); |
| } |
| |
| const std::vector<uint16_t>& vmap_table = compiled_method->GetVmapTable(); |
| size_t vmap_table_size = vmap_table.size() * sizeof(vmap_table[0]); |
| vmap_table_offset = (vmap_table_size == 0) ? 0 : offset; |
| |
| // Deduplicate vmap tables |
| std::map<const std::vector<uint16_t>*, uint32_t>::iterator vmap_iter = vmap_table_offsets_.find(&vmap_table); |
| if (vmap_iter != vmap_table_offsets_.end()) { |
| vmap_table_offset = vmap_iter->second; |
| } else { |
| vmap_table_offsets_.insert(std::pair<const std::vector<uint16_t>*, uint32_t>(&vmap_table, vmap_table_offset)); |
| offset += vmap_table_size; |
| oat_header_->UpdateChecksum(&vmap_table[0], vmap_table_size); |
| } |
| } |
| |
| const char* shorty = dex_file->GetMethodShorty(dex_file->GetMethodId(method_idx)); |
| const CompiledInvokeStub* compiled_invoke_stub = compiler_->FindInvokeStub(is_static, shorty); |
| if (compiled_invoke_stub != NULL) { |
| offset = CompiledMethod::AlignCode(offset, compiler_->GetInstructionSet()); |
| DCHECK_ALIGNED(offset, kArmAlignment); |
| const std::vector<uint8_t>& invoke_stub = compiled_invoke_stub->GetCode(); |
| size_t invoke_stub_size = invoke_stub.size() * sizeof(invoke_stub[0]); |
| invoke_stub_offset = (invoke_stub_size == 0) ? 0 : offset; |
| |
| // Deduplicate invoke stubs |
| std::map<const std::vector<uint8_t>*, uint32_t>::iterator stub_iter = code_offsets_.find(&invoke_stub); |
| if (stub_iter != code_offsets_.end()) { |
| invoke_stub_offset = stub_iter->second; |
| } else { |
| code_offsets_.insert(std::pair<const std::vector<uint8_t>*, uint32_t>(&invoke_stub, invoke_stub_offset)); |
| offset += invoke_stub_size; |
| oat_header_->UpdateChecksum(&invoke_stub[0], invoke_stub_size); |
| } |
| } |
| |
| oat_classes_[oat_class_index]->method_offsets_[class_def_method_index] |
| = OatMethodOffsets(code_offset, |
| frame_size_in_bytes, |
| core_spill_mask, |
| fp_spill_mask, |
| mapping_table_offset, |
| vmap_table_offset, |
| invoke_stub_offset); |
| |
| if (compiler_->IsImage()) { |
| ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| DexCache* dex_cache = linker->FindDexCache(*dex_file); |
| Method* method = linker->ResolveMethod(*dex_file, method_idx, dex_cache, class_loader_, |
| is_direct); |
| CHECK(method != NULL); |
| method->SetFrameSizeInBytes(frame_size_in_bytes); |
| method->SetCoreSpillMask(core_spill_mask); |
| method->SetFpSpillMask(fp_spill_mask); |
| method->SetOatMappingTableOffset(mapping_table_offset); |
| method->SetOatCodeOffset(code_offset); |
| method->SetOatVmapTableOffset(vmap_table_offset); |
| method->SetOatInvokeStubOffset(invoke_stub_offset); |
| } |
| return offset; |
| } |
| |
| #define DCHECK_CODE_OFFSET() \ |
| DCHECK_EQ(static_cast<off_t>(code_offset), lseek(file->Fd(), 0, SEEK_CUR)) |
| |
| bool OatWriter::Write(File* file) { |
| if (!file->WriteFully(oat_header_, sizeof(*oat_header_))) { |
| PLOG(ERROR) << "Failed to write oat header to " << file->name(); |
| return false; |
| } |
| |
| if (!WriteTables(file)) { |
| LOG(ERROR) << "Failed to write oat tables to " << file->name(); |
| return false; |
| } |
| |
| size_t code_offset = WriteCode(file); |
| if (code_offset == 0) { |
| LOG(ERROR) << "Failed to write oat code to " << file->name(); |
| return false; |
| } |
| |
| code_offset = WriteCodeDexFiles(file, code_offset); |
| if (code_offset == 0) { |
| LOG(ERROR) << "Failed to write oat code for dex files to " << file->name(); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool OatWriter::WriteTables(File* file) { |
| for (size_t i = 0; i != oat_dex_files_.size(); ++i) { |
| if (!oat_dex_files_[i]->Write(file)) { |
| PLOG(ERROR) << "Failed to write oat dex information to " << file->name(); |
| return false; |
| } |
| } |
| for (size_t i = 0; i != oat_dex_files_.size(); ++i) { |
| uint32_t expected_offset = oat_dex_files_[i]->dex_file_offset_; |
| off_t actual_offset = lseek(file->Fd(), expected_offset, SEEK_SET); |
| if (static_cast<uint32_t>(actual_offset) != expected_offset) { |
| const DexFile* dex_file = (*dex_files_)[i]; |
| PLOG(ERROR) << "Failed to seek to dex file section. Actual: " << actual_offset |
| << " Expected: " << expected_offset << " File: " << dex_file->GetLocation(); |
| return false; |
| } |
| const DexFile* dex_file = (*dex_files_)[i]; |
| if (!file->WriteFully(&dex_file->GetHeader(), dex_file->GetHeader().file_size_)) { |
| PLOG(ERROR) << "Failed to write dex file " << dex_file->GetLocation() << " to " << file->name(); |
| return false; |
| } |
| } |
| for (size_t i = 0; i != oat_classes_.size(); ++i) { |
| if (!oat_classes_[i]->Write(file)) { |
| PLOG(ERROR) << "Failed to write oat methods information to " << file->name(); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| size_t OatWriter::WriteCode(File* file) { |
| uint32_t code_offset = oat_header_->GetExecutableOffset(); |
| off_t new_offset = lseek(file->Fd(), executable_offset_padding_length_, SEEK_CUR); |
| if (static_cast<uint32_t>(new_offset) != code_offset) { |
| PLOG(ERROR) << "Failed to seek to oat code section. Actual: " << new_offset |
| << " Expected: " << code_offset << " File: " << file->name(); |
| return 0; |
| } |
| DCHECK_CODE_OFFSET(); |
| return code_offset; |
| } |
| |
| size_t OatWriter::WriteCodeDexFiles(File* file, size_t code_offset) { |
| size_t oat_class_index = 0; |
| for (size_t i = 0; i != oat_dex_files_.size(); ++i) { |
| const DexFile* dex_file = (*dex_files_)[i]; |
| CHECK(dex_file != NULL); |
| code_offset = WriteCodeDexFile(file, code_offset, oat_class_index, *dex_file); |
| if (code_offset == 0) { |
| return 0; |
| } |
| } |
| return code_offset; |
| } |
| |
| size_t OatWriter::WriteCodeDexFile(File* file, size_t code_offset, size_t& oat_class_index, |
| const DexFile& dex_file) { |
| for (size_t class_def_index = 0; class_def_index < dex_file.NumClassDefs(); |
| class_def_index++, oat_class_index++) { |
| const DexFile::ClassDef& class_def = dex_file.GetClassDef(class_def_index); |
| code_offset = WriteCodeClassDef(file, code_offset, oat_class_index, dex_file, class_def); |
| if (code_offset == 0) { |
| return 0; |
| } |
| } |
| return code_offset; |
| } |
| |
| void OatWriter::ReportWriteFailure(const char* what, uint32_t method_idx, |
| const DexFile& dex_file, File* f) const { |
| PLOG(ERROR) << "Failed to write " << what << " for " << PrettyMethod(method_idx, dex_file) |
| << " to " << f->name(); |
| } |
| |
| size_t OatWriter::WriteCodeClassDef(File* file, |
| size_t code_offset, size_t oat_class_index, |
| const DexFile& dex_file, |
| const DexFile::ClassDef& class_def) { |
| const byte* class_data = dex_file.GetClassData(class_def); |
| if (class_data == NULL) { |
| // ie. an empty class such as a marker interface |
| return code_offset; |
| } |
| ClassDataItemIterator it(dex_file, class_data); |
| // Skip fields |
| while (it.HasNextStaticField()) { |
| it.Next(); |
| } |
| while (it.HasNextInstanceField()) { |
| it.Next(); |
| } |
| // Process methods |
| size_t class_def_method_index = 0; |
| while (it.HasNextDirectMethod()) { |
| bool is_static = (it.GetMemberAccessFlags() & kAccStatic) != 0; |
| code_offset = WriteCodeMethod(file, code_offset, oat_class_index, class_def_method_index, |
| is_static, it.GetMemberIndex(), dex_file); |
| if (code_offset == 0) { |
| return 0; |
| } |
| class_def_method_index++; |
| it.Next(); |
| } |
| while (it.HasNextVirtualMethod()) { |
| code_offset = WriteCodeMethod(file, code_offset, oat_class_index, class_def_method_index, |
| false, it.GetMemberIndex(), dex_file); |
| if (code_offset == 0) { |
| return 0; |
| } |
| class_def_method_index++; |
| it.Next(); |
| } |
| return code_offset; |
| } |
| |
| size_t OatWriter::WriteCodeMethod(File* file, size_t code_offset, size_t oat_class_index, |
| size_t class_def_method_index, bool is_static, |
| uint32_t method_idx, const DexFile& dex_file) { |
| const CompiledMethod* compiled_method = |
| compiler_->GetCompiledMethod(art::Compiler::MethodReference(&dex_file, method_idx)); |
| |
| uint32_t frame_size_in_bytes = 0; |
| uint32_t core_spill_mask = 0; |
| uint32_t fp_spill_mask = 0; |
| |
| OatMethodOffsets method_offsets = |
| oat_classes_[oat_class_index]->method_offsets_[class_def_method_index]; |
| |
| |
| if (compiled_method != NULL) { // ie. not an abstract method |
| uint32_t aligned_code_offset = compiled_method->AlignCode(code_offset); |
| uint32_t aligned_code_delta = aligned_code_offset - code_offset; |
| if (aligned_code_delta != 0) { |
| off_t new_offset = lseek(file->Fd(), aligned_code_delta, SEEK_CUR); |
| if (static_cast<uint32_t>(new_offset) != aligned_code_offset) { |
| PLOG(ERROR) << "Failed to seek to align oat code. Actual: " << new_offset |
| << " Expected: " << aligned_code_offset << " File: " << file->name(); |
| return false; |
| } |
| code_offset += aligned_code_delta; |
| DCHECK_CODE_OFFSET(); |
| } |
| DCHECK_ALIGNED(code_offset, kArmAlignment); |
| const std::vector<uint8_t>& code = compiled_method->GetCode(); |
| size_t code_size = code.size() * sizeof(code[0]); |
| |
| // Deduplicate code arrays |
| size_t offset = code_offset + compiled_method->CodeDelta(); |
| std::map<const std::vector<uint8_t>*, uint32_t>::iterator code_iter = code_offsets_.find(&code); |
| if (code_iter != code_offsets_.end() && offset != method_offsets.code_offset_) { |
| DCHECK((code_size == 0 && method_offsets.code_offset_ == 0) |
| || code_iter->second == method_offsets.code_offset_) |
| << PrettyMethod(method_idx, dex_file); |
| } else { |
| DCHECK((code_size == 0 && method_offsets.code_offset_ == 0) |
| || offset == method_offsets.code_offset_) |
| << PrettyMethod(method_idx, dex_file); |
| if (!file->WriteFully(&code[0], code_size)) { |
| ReportWriteFailure("method code", method_idx, dex_file, file); |
| return false; |
| } |
| code_offset += code_size; |
| } |
| DCHECK_CODE_OFFSET(); |
| frame_size_in_bytes = compiled_method->GetFrameSizeInBytes(); |
| core_spill_mask = compiled_method->GetCoreSpillMask(); |
| fp_spill_mask = compiled_method->GetFpSpillMask(); |
| } |
| |
| if (!file->WriteFully(&frame_size_in_bytes, sizeof(frame_size_in_bytes))) { |
| ReportWriteFailure("method frame size", method_idx, dex_file, file); |
| return false; |
| } |
| code_offset += sizeof(frame_size_in_bytes); |
| if (!file->WriteFully(&core_spill_mask, sizeof(core_spill_mask))) { |
| ReportWriteFailure("method core spill mask", method_idx, dex_file, file); |
| return false; |
| } |
| code_offset += sizeof(core_spill_mask); |
| if (!file->WriteFully(&fp_spill_mask, sizeof(fp_spill_mask))) { |
| ReportWriteFailure("method fp spill mask", method_idx, dex_file, file); |
| return false; |
| } |
| code_offset += sizeof(fp_spill_mask); |
| |
| if (compiled_method != NULL) { |
| const std::vector<uint32_t>& mapping_table = compiled_method->GetMappingTable(); |
| size_t mapping_table_size = mapping_table.size() * sizeof(mapping_table[0]); |
| |
| // Deduplicate mapping tables |
| std::map<const std::vector<uint32_t>*, uint32_t>::iterator mapping_iter = |
| mapping_table_offsets_.find(&mapping_table); |
| if (mapping_iter != mapping_table_offsets_.end() && |
| code_offset != method_offsets.mapping_table_offset_) { |
| DCHECK((mapping_table_size == 0 && method_offsets.mapping_table_offset_ == 0) |
| || mapping_iter->second == method_offsets.mapping_table_offset_) |
| << PrettyMethod(method_idx, dex_file); |
| } else { |
| DCHECK((mapping_table_size == 0 && method_offsets.mapping_table_offset_ == 0) |
| || code_offset == method_offsets.mapping_table_offset_) |
| << PrettyMethod(method_idx, dex_file); |
| if (!file->WriteFully(&mapping_table[0], mapping_table_size)) { |
| ReportWriteFailure("mapping table", method_idx, dex_file, file); |
| return false; |
| } |
| code_offset += mapping_table_size; |
| } |
| DCHECK_CODE_OFFSET(); |
| |
| const std::vector<uint16_t>& vmap_table = compiled_method->GetVmapTable(); |
| size_t vmap_table_size = vmap_table.size() * sizeof(vmap_table[0]); |
| |
| // Deduplicate vmap tables |
| std::map<const std::vector<uint16_t>*, uint32_t>::iterator vmap_iter = |
| vmap_table_offsets_.find(&vmap_table); |
| if (vmap_iter != vmap_table_offsets_.end() && |
| code_offset != method_offsets.vmap_table_offset_) { |
| DCHECK((vmap_table_size == 0 && method_offsets.vmap_table_offset_ == 0) |
| || vmap_iter->second == method_offsets.vmap_table_offset_) |
| << PrettyMethod(method_idx, dex_file); |
| } else { |
| DCHECK((vmap_table_size == 0 && method_offsets.vmap_table_offset_ == 0) |
| || code_offset == method_offsets.vmap_table_offset_) |
| << PrettyMethod(method_idx, dex_file); |
| if (!file->WriteFully(&vmap_table[0], vmap_table_size)) { |
| ReportWriteFailure("vmap table", method_idx, dex_file, file); |
| return false; |
| } |
| code_offset += vmap_table_size; |
| } |
| DCHECK_CODE_OFFSET(); |
| } |
| const char* shorty = dex_file.GetMethodShorty(dex_file.GetMethodId(method_idx)); |
| const CompiledInvokeStub* compiled_invoke_stub = compiler_->FindInvokeStub(is_static, shorty); |
| if (compiled_invoke_stub != NULL) { |
| uint32_t aligned_code_offset = CompiledMethod::AlignCode(code_offset, |
| compiler_->GetInstructionSet()); |
| uint32_t aligned_code_delta = aligned_code_offset - code_offset; |
| if (aligned_code_delta != 0) { |
| off_t new_offset = lseek(file->Fd(), aligned_code_delta, SEEK_CUR); |
| if (static_cast<uint32_t>(new_offset) != aligned_code_offset) { |
| PLOG(ERROR) << "Failed to seek to align invoke stub code. Actual: " << new_offset |
| << " Expected: " << aligned_code_offset; |
| return false; |
| } |
| code_offset += aligned_code_delta; |
| DCHECK_CODE_OFFSET(); |
| } |
| DCHECK_ALIGNED(code_offset, kArmAlignment); |
| const std::vector<uint8_t>& invoke_stub = compiled_invoke_stub->GetCode(); |
| size_t invoke_stub_size = invoke_stub.size() * sizeof(invoke_stub[0]); |
| |
| // Deduplicate invoke stubs |
| std::map<const std::vector<uint8_t>*, uint32_t>::iterator stub_iter = |
| code_offsets_.find(&invoke_stub); |
| if (stub_iter != code_offsets_.end() && |
| code_offset != method_offsets.invoke_stub_offset_) { |
| DCHECK((invoke_stub_size == 0 && method_offsets.invoke_stub_offset_ == 0) |
| || stub_iter->second == method_offsets.invoke_stub_offset_) |
| << PrettyMethod(method_idx, dex_file); |
| } else { |
| DCHECK((invoke_stub_size == 0 && method_offsets.invoke_stub_offset_ == 0) |
| || code_offset == method_offsets.invoke_stub_offset_) |
| << PrettyMethod(method_idx, dex_file); |
| if (!file->WriteFully(&invoke_stub[0], invoke_stub_size)) { |
| ReportWriteFailure("invoke stub code", method_idx, dex_file, file); |
| return false; |
| } |
| code_offset += invoke_stub_size; |
| } |
| DCHECK_CODE_OFFSET(); |
| } |
| return code_offset; |
| } |
| |
| OatWriter::OatDexFile::OatDexFile(const DexFile& dex_file) { |
| const std::string& location(dex_file.GetLocation()); |
| dex_file_location_size_ = location.size(); |
| dex_file_location_data_ = reinterpret_cast<const uint8_t*>(location.data()); |
| dex_file_checksum_ = dex_file.GetHeader().checksum_; |
| dex_file_offset_ = 0; |
| methods_offsets_.resize(dex_file.NumClassDefs()); |
| } |
| |
| size_t OatWriter::OatDexFile::SizeOf() const { |
| return sizeof(dex_file_location_size_) |
| + dex_file_location_size_ |
| + sizeof(dex_file_checksum_) |
| + sizeof(dex_file_offset_) |
| + (sizeof(methods_offsets_[0]) * methods_offsets_.size()); |
| } |
| |
| void OatWriter::OatDexFile::UpdateChecksum(OatHeader& oat_header) const { |
| oat_header.UpdateChecksum(&dex_file_location_size_, sizeof(dex_file_location_size_)); |
| oat_header.UpdateChecksum(dex_file_location_data_, dex_file_location_size_); |
| oat_header.UpdateChecksum(&dex_file_checksum_, sizeof(dex_file_checksum_)); |
| oat_header.UpdateChecksum(&dex_file_offset_, sizeof(dex_file_offset_)); |
| oat_header.UpdateChecksum(&methods_offsets_[0], |
| sizeof(methods_offsets_[0]) * methods_offsets_.size()); |
| } |
| |
| bool OatWriter::OatDexFile::Write(File* file) const { |
| if (!file->WriteFully(&dex_file_location_size_, sizeof(dex_file_location_size_))) { |
| PLOG(ERROR) << "Failed to write dex file location length to " << file->name(); |
| return false; |
| } |
| if (!file->WriteFully(dex_file_location_data_, dex_file_location_size_)) { |
| PLOG(ERROR) << "Failed to write dex file location data to " << file->name(); |
| return false; |
| } |
| if (!file->WriteFully(&dex_file_checksum_, sizeof(dex_file_checksum_))) { |
| PLOG(ERROR) << "Failed to write dex file checksum to " << file->name(); |
| return false; |
| } |
| if (!file->WriteFully(&dex_file_offset_, sizeof(dex_file_offset_))) { |
| PLOG(ERROR) << "Failed to write dex file offset to " << file->name(); |
| return false; |
| } |
| if (!file->WriteFully(&methods_offsets_[0], |
| sizeof(methods_offsets_[0]) * methods_offsets_.size())) { |
| PLOG(ERROR) << "Failed to write methods offsets to " << file->name(); |
| return false; |
| } |
| return true; |
| } |
| |
| OatWriter::OatClass::OatClass(Class::Status status, uint32_t methods_count) { |
| status_ = status; |
| method_offsets_.resize(methods_count); |
| } |
| |
| size_t OatWriter::OatClass::SizeOf() const { |
| return sizeof(status_) |
| + (sizeof(method_offsets_[0]) * method_offsets_.size()); |
| } |
| |
| void OatWriter::OatClass::UpdateChecksum(OatHeader& oat_header) const { |
| oat_header.UpdateChecksum(&status_, sizeof(status_)); |
| oat_header.UpdateChecksum(&method_offsets_[0], |
| sizeof(method_offsets_[0]) * method_offsets_.size()); |
| } |
| |
| bool OatWriter::OatClass::Write(File* file) const { |
| if (!file->WriteFully(&status_, sizeof(status_))) { |
| PLOG(ERROR) << "Failed to write class status to " << file->name(); |
| return false; |
| } |
| if (!file->WriteFully(&method_offsets_[0], |
| sizeof(method_offsets_[0]) * method_offsets_.size())) { |
| PLOG(ERROR) << "Failed to write method offsets to " << file->name(); |
| return false; |
| } |
| return true; |
| } |
| |
| } // namespace art |
