diff options
Diffstat (limited to 'compiler/oat_writer.cc')
| -rw-r--r-- | compiler/oat_writer.cc | 906 |
1 files changed, 906 insertions, 0 deletions
diff --git a/compiler/oat_writer.cc b/compiler/oat_writer.cc new file mode 100644 index 0000000..0bfa4ec --- /dev/null +++ b/compiler/oat_writer.cc @@ -0,0 +1,906 @@ +/* + * Copyright (C) 2011 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "oat_writer.h" + +#include <zlib.h> + +#include "base/stl_util.h" +#include "base/unix_file/fd_file.h" +#include "class_linker.h" +#include "dex_file-inl.h" +#include "gc/space/space.h" +#include "mirror/abstract_method-inl.h" +#include "mirror/array.h" +#include "mirror/class_loader.h" +#include "mirror/object-inl.h" +#include "os.h" +#include "output_stream.h" +#include "safe_map.h" +#include "scoped_thread_state_change.h" +#include "verifier/method_verifier.h" + +namespace art { + +bool OatWriter::Create(OutputStream& output_stream, + const std::vector<const DexFile*>& dex_files, + uint32_t image_file_location_oat_checksum, + uint32_t image_file_location_oat_begin, + const std::string& image_file_location, + const CompilerDriver& driver) { + OatWriter oat_writer(dex_files, + image_file_location_oat_checksum, + image_file_location_oat_begin, + image_file_location, + &driver); + return oat_writer.Write(output_stream); +} + +OatWriter::OatWriter(const std::vector<const DexFile*>& dex_files, + uint32_t image_file_location_oat_checksum, + uint32_t image_file_location_oat_begin, + const std::string& image_file_location, + const CompilerDriver* compiler) + : compiler_driver_(compiler), + dex_files_(&dex_files), + image_file_location_oat_checksum_(image_file_location_oat_checksum), + image_file_location_oat_begin_(image_file_location_oat_begin), + image_file_location_(image_file_location), + oat_header_(NULL), + size_dex_file_alignment_(0), + size_executable_offset_alignment_(0), + size_oat_header_(0), + size_oat_header_image_file_location_(0), + size_dex_file_(0), + size_interpreter_to_interpreter_entry_(0), + size_interpreter_to_quick_entry_(0), + size_portable_resolution_trampoline_(0), + size_quick_resolution_trampoline_(0), + size_stubs_alignment_(0), + size_code_size_(0), + size_code_(0), + size_code_alignment_(0), + size_mapping_table_(0), + size_vmap_table_(0), + size_gc_map_(0), + size_oat_dex_file_location_size_(0), + size_oat_dex_file_location_data_(0), + size_oat_dex_file_location_checksum_(0), + size_oat_dex_file_offset_(0), + size_oat_dex_file_methods_offsets_(0), + size_oat_class_status_(0), + size_oat_class_method_offsets_(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()); + CHECK(image_file_location.empty() == compiler->IsImage()); +} + +OatWriter::~OatWriter() { + delete oat_header_; + STLDeleteElements(&oat_dex_files_); + STLDeleteElements(&oat_classes_); +} + +size_t OatWriter::InitOatHeader() { + // create the OatHeader + oat_header_ = new OatHeader(compiler_driver_->GetInstructionSet(), + dex_files_, + image_file_location_oat_checksum_, + image_file_location_oat_begin_, + image_file_location_); + size_t offset = sizeof(*oat_header_); + offset += image_file_location_.size(); + 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(offset, *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 + size_t original_offset = offset; + offset = RoundUp(offset, 4); + size_dex_file_alignment_ += offset - original_offset; + + // 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 + 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++) { + 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; + } + + ClassReference class_ref(dex_file, class_def_index); + CompiledClass* compiled_class = compiler_driver_->GetCompiledClass(class_ref); + mirror::Class::Status status; + if (compiled_class != NULL) { + status = compiled_class->GetStatus(); + } else if (verifier::MethodVerifier::IsClassRejected(class_ref)) { + status = mirror::Class::kStatusError; + } else { + status = mirror::Class::kStatusNotReady; + } + + OatClass* oat_class = new OatClass(offset, 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); + size_executable_offset_alignment_ = offset - old_offset; + if (compiler_driver_->IsImage()) { + InstructionSet instruction_set = compiler_driver_->GetInstructionSet(); + oat_header_->SetInterpreterToInterpreterEntryOffset(offset); + interpreter_to_interpreter_entry_.reset(compiler_driver_->CreateInterpreterToInterpreterEntry()); + offset += interpreter_to_interpreter_entry_->size(); + + offset = CompiledCode::AlignCode(offset, instruction_set); + oat_header_->SetInterpreterToQuickEntryOffset(offset); + interpreter_to_quick_entry_.reset(compiler_driver_->CreateInterpreterToQuickEntry()); + offset += interpreter_to_quick_entry_->size(); + + offset = CompiledCode::AlignCode(offset, instruction_set); + oat_header_->SetPortableResolutionTrampolineOffset(offset); + portable_resolution_trampoline_.reset(compiler_driver_->CreatePortableResolutionTrampoline()); + offset += portable_resolution_trampoline_->size(); + + offset = CompiledCode::AlignCode(offset, instruction_set); + oat_header_->SetQuickResolutionTrampolineOffset(offset); + quick_resolution_trampoline_.reset(compiler_driver_->CreateQuickResolutionTrampoline()); + offset += quick_resolution_trampoline_->size(); + } else { + oat_header_->SetInterpreterToInterpreterEntryOffset(0); + oat_header_->SetInterpreterToQuickEntryOffset(0); + oat_header_->SetPortableResolutionTrampolineOffset(0); + oat_header_->SetQuickResolutionTrampolineOffset(0); + } + 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, class_def_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, size_t class_def_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_native = (it.GetMemberAccessFlags() & kAccNative) != 0; + offset = InitOatCodeMethod(offset, oat_class_index, class_def_index, class_def_method_index, + is_native, it.GetMethodInvokeType(class_def), it.GetMemberIndex(), + &dex_file); + class_def_method_index++; + it.Next(); + } + while (it.HasNextVirtualMethod()) { + bool is_native = (it.GetMemberAccessFlags() & kAccNative) != 0; + offset = InitOatCodeMethod(offset, oat_class_index, class_def_index, class_def_method_index, + is_native, it.GetMethodInvokeType(class_def), 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 __attribute__((unused)) class_def_index, + size_t class_def_method_index, + bool __attribute__((unused)) is_native, + InvokeType invoke_type, + 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; + uint32_t gc_map_offset = 0; + + OatClass* oat_class = oat_classes_[oat_class_index]; +#if defined(ART_USE_PORTABLE_COMPILER) + size_t oat_method_offsets_offset = + oat_class->GetOatMethodOffsetsOffsetFromOatHeader(class_def_method_index); +#endif + + CompiledMethod* compiled_method = + compiler_driver_->GetCompiledMethod(MethodReference(dex_file, method_idx)); + if (compiled_method != NULL) { +#if defined(ART_USE_PORTABLE_COMPILER) + compiled_method->AddOatdataOffsetToCompliledCodeOffset( + oat_method_offsets_offset + OFFSETOF_MEMBER(OatMethodOffsets, code_offset_)); +#else + const std::vector<uint8_t>& code = compiled_method->GetCode(); + offset = compiled_method->AlignCode(offset); + DCHECK_ALIGNED(offset, kArmAlignment); + uint32_t code_size = code.size() * sizeof(code[0]); + CHECK_NE(code_size, 0U); + uint32_t thumb_offset = compiled_method->CodeDelta(); + code_offset = offset + sizeof(code_size) + thumb_offset; + + // Deduplicate code arrays + SafeMap<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_.Put(&code, code_offset); + offset += sizeof(code_size); // code size is prepended before code + offset += code_size; + oat_header_->UpdateChecksum(&code[0], code_size); + } +#endif + frame_size_in_bytes = compiled_method->GetFrameSizeInBytes(); + core_spill_mask = compiled_method->GetCoreSpillMask(); + fp_spill_mask = compiled_method->GetFpSpillMask(); + + 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 + SafeMap<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_.Put(&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 + SafeMap<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_.Put(&vmap_table, vmap_table_offset); + offset += vmap_table_size; + oat_header_->UpdateChecksum(&vmap_table[0], vmap_table_size); + } + + const std::vector<uint8_t>& gc_map = compiled_method->GetGcMap(); + size_t gc_map_size = gc_map.size() * sizeof(gc_map[0]); + gc_map_offset = (gc_map_size == 0) ? 0 : offset; + +#if !defined(NDEBUG) + // We expect GC maps except when the class hasn't been verified or the method is native + ClassReference class_ref(dex_file, class_def_index); + CompiledClass* compiled_class = compiler_driver_->GetCompiledClass(class_ref); + mirror::Class::Status status; + if (compiled_class != NULL) { + status = compiled_class->GetStatus(); + } else if (verifier::MethodVerifier::IsClassRejected(class_ref)) { + status = mirror::Class::kStatusError; + } else { + status = mirror::Class::kStatusNotReady; + } + CHECK(gc_map_size != 0 || is_native || status < mirror::Class::kStatusVerified) + << &gc_map << " " << gc_map_size << " " << (is_native ? "true" : "false") << " " + << (status < mirror::Class::kStatusVerified) << " " << status << " " + << PrettyMethod(method_idx, *dex_file); +#endif + + // Deduplicate GC maps + SafeMap<const std::vector<uint8_t>*, uint32_t>::iterator gc_map_iter = gc_map_offsets_.find(&gc_map); + if (gc_map_iter != gc_map_offsets_.end()) { + gc_map_offset = gc_map_iter->second; + } else { + gc_map_offsets_.Put(&gc_map, gc_map_offset); + offset += gc_map_size; + oat_header_->UpdateChecksum(&gc_map[0], gc_map_size); + } + } + + oat_class->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, + gc_map_offset + ); + + if (compiler_driver_->IsImage()) { + ClassLinker* linker = Runtime::Current()->GetClassLinker(); + mirror::DexCache* dex_cache = linker->FindDexCache(*dex_file); + // Unchecked as we hold mutator_lock_ on entry. + ScopedObjectAccessUnchecked soa(Thread::Current()); + mirror::AbstractMethod* method = linker->ResolveMethod(*dex_file, method_idx, dex_cache, + NULL, NULL, invoke_type); + CHECK(method != NULL); + method->SetFrameSizeInBytes(frame_size_in_bytes); + method->SetCoreSpillMask(core_spill_mask); + method->SetFpSpillMask(fp_spill_mask); + method->SetOatMappingTableOffset(mapping_table_offset); + // Don't overwrite static method trampoline + if (!method->IsStatic() || method->IsConstructor() || + method->GetDeclaringClass()->IsInitialized()) { + method->SetOatCodeOffset(code_offset); + } else { + method->SetEntryPointFromCompiledCode(NULL); + } + method->SetOatVmapTableOffset(vmap_table_offset); + method->SetOatNativeGcMapOffset(gc_map_offset); + } + + return offset; +} + +#define DCHECK_OFFSET() \ + DCHECK_EQ(static_cast<off_t>(offset), out.Seek(0, kSeekCurrent)) + +#define DCHECK_OFFSET_() \ + DCHECK_EQ(static_cast<off_t>(offset_), out.Seek(0, kSeekCurrent)) + +bool OatWriter::Write(OutputStream& out) { + if (!out.WriteFully(oat_header_, sizeof(*oat_header_))) { + PLOG(ERROR) << "Failed to write oat header to " << out.GetLocation(); + return false; + } + size_oat_header_ += sizeof(*oat_header_); + + if (!out.WriteFully(image_file_location_.data(), image_file_location_.size())) { + PLOG(ERROR) << "Failed to write oat header image file location to " << out.GetLocation(); + return false; + } + size_oat_header_image_file_location_ += image_file_location_.size(); + + if (!WriteTables(out)) { + LOG(ERROR) << "Failed to write oat tables to " << out.GetLocation(); + return false; + } + + size_t code_offset = WriteCode(out); + if (code_offset == 0) { + LOG(ERROR) << "Failed to write oat code to " << out.GetLocation(); + return false; + } + + code_offset = WriteCodeDexFiles(out, code_offset); + if (code_offset == 0) { + LOG(ERROR) << "Failed to write oat code for dex files to " << out.GetLocation(); + return false; + } + + if (kIsDebugBuild) { + uint32_t size_total = 0; + #define DO_STAT(x) \ + LOG(INFO) << #x "=" << PrettySize(x) << " (" << x << "B)"; \ + size_total += x; + + DO_STAT(size_dex_file_alignment_); + DO_STAT(size_executable_offset_alignment_); + DO_STAT(size_oat_header_); + DO_STAT(size_oat_header_image_file_location_); + DO_STAT(size_dex_file_); + DO_STAT(size_interpreter_to_interpreter_entry_); + DO_STAT(size_interpreter_to_quick_entry_); + DO_STAT(size_portable_resolution_trampoline_); + DO_STAT(size_quick_resolution_trampoline_); + DO_STAT(size_stubs_alignment_); + DO_STAT(size_code_size_); + DO_STAT(size_code_); + DO_STAT(size_code_alignment_); + DO_STAT(size_mapping_table_); + DO_STAT(size_vmap_table_); + DO_STAT(size_gc_map_); + DO_STAT(size_oat_dex_file_location_size_); + DO_STAT(size_oat_dex_file_location_data_); + DO_STAT(size_oat_dex_file_location_checksum_); + DO_STAT(size_oat_dex_file_offset_); + DO_STAT(size_oat_dex_file_methods_offsets_); + DO_STAT(size_oat_class_status_); + DO_STAT(size_oat_class_method_offsets_); + #undef DO_STAT + + LOG(INFO) << "size_total=" << PrettySize(size_total) << " (" << size_total << "B)"; \ + CHECK_EQ(size_total, static_cast<uint32_t>(out.Seek(0, kSeekCurrent))); + } + + return true; +} + +bool OatWriter::WriteTables(OutputStream& out) { + for (size_t i = 0; i != oat_dex_files_.size(); ++i) { + if (!oat_dex_files_[i]->Write(this, out)) { + PLOG(ERROR) << "Failed to write oat dex information to " << out.GetLocation(); + 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 = out.Seek(expected_offset, kSeekSet); + 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 (!out.WriteFully(&dex_file->GetHeader(), dex_file->GetHeader().file_size_)) { + PLOG(ERROR) << "Failed to write dex file " << dex_file->GetLocation() << " to " << out.GetLocation(); + return false; + } + size_dex_file_ += dex_file->GetHeader().file_size_; + } + for (size_t i = 0; i != oat_classes_.size(); ++i) { + if (!oat_classes_[i]->Write(this, out)) { + PLOG(ERROR) << "Failed to write oat methods information to " << out.GetLocation(); + return false; + } + } + return true; +} + +size_t OatWriter::WriteCode(OutputStream& out) { + uint32_t offset = oat_header_->GetExecutableOffset(); + off_t new_offset = out.Seek(size_executable_offset_alignment_, kSeekCurrent); + if (static_cast<uint32_t>(new_offset) != offset) { + PLOG(ERROR) << "Failed to seek to oat code section. Actual: " << new_offset + << " Expected: " << offset << " File: " << out.GetLocation(); + return 0; + } + DCHECK_OFFSET(); + if (compiler_driver_->IsImage()) { + InstructionSet instruction_set = compiler_driver_->GetInstructionSet(); + if (!out.WriteFully(&(*interpreter_to_interpreter_entry_)[0], interpreter_to_interpreter_entry_->size())) { + PLOG(ERROR) << "Failed to write interpreter to interpreter entry to " << out.GetLocation(); + return false; + } + size_interpreter_to_interpreter_entry_ += interpreter_to_interpreter_entry_->size(); + offset += interpreter_to_interpreter_entry_->size(); + DCHECK_OFFSET(); + + uint32_t aligned_offset = CompiledCode::AlignCode(offset, instruction_set); + uint32_t alignment_padding = aligned_offset - offset; + out.Seek(alignment_padding, kSeekCurrent); + size_stubs_alignment_ += alignment_padding; + if (!out.WriteFully(&(*interpreter_to_quick_entry_)[0], interpreter_to_quick_entry_->size())) { + PLOG(ERROR) << "Failed to write interpreter to quick entry to " << out.GetLocation(); + return false; + } + size_interpreter_to_quick_entry_ += interpreter_to_quick_entry_->size(); + offset += alignment_padding + interpreter_to_quick_entry_->size(); + DCHECK_OFFSET(); + + aligned_offset = CompiledCode::AlignCode(offset, instruction_set); + alignment_padding = aligned_offset - offset; + out.Seek(alignment_padding, kSeekCurrent); + size_stubs_alignment_ += alignment_padding; + if (!out.WriteFully(&(*portable_resolution_trampoline_)[0], portable_resolution_trampoline_->size())) { + PLOG(ERROR) << "Failed to write portable resolution trampoline to " << out.GetLocation(); + return false; + } + size_portable_resolution_trampoline_ += portable_resolution_trampoline_->size(); + offset += alignment_padding + portable_resolution_trampoline_->size(); + DCHECK_OFFSET(); + + aligned_offset = CompiledCode::AlignCode(offset, instruction_set); + alignment_padding = aligned_offset - offset; + out.Seek(alignment_padding, kSeekCurrent); + size_stubs_alignment_ += alignment_padding; + if (!out.WriteFully(&(*quick_resolution_trampoline_)[0], quick_resolution_trampoline_->size())) { + PLOG(ERROR) << "Failed to write quick resolution trampoline to " << out.GetLocation(); + return false; + } + size_quick_resolution_trampoline_ += quick_resolution_trampoline_->size(); + offset += alignment_padding + quick_resolution_trampoline_->size(); + DCHECK_OFFSET(); + } + return offset; +} + +size_t OatWriter::WriteCodeDexFiles(OutputStream& out, 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(out, code_offset, oat_class_index, *dex_file); + if (code_offset == 0) { + return 0; + } + } + return code_offset; +} + +size_t OatWriter::WriteCodeDexFile(OutputStream& out, 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(out, 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, OutputStream& out) const { + PLOG(ERROR) << "Failed to write " << what << " for " << PrettyMethod(method_idx, dex_file) + << " to " << out.GetLocation(); +} + +size_t OatWriter::WriteCodeClassDef(OutputStream& out, + 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(out, 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(out, 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(OutputStream& out, size_t 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_driver_->GetCompiledMethod(MethodReference(&dex_file, method_idx)); + + OatMethodOffsets method_offsets = + oat_classes_[oat_class_index]->method_offsets_[class_def_method_index]; + + + if (compiled_method != NULL) { // ie. not an abstract method +#if !defined(ART_USE_PORTABLE_COMPILER) + uint32_t aligned_offset = compiled_method->AlignCode(offset); + uint32_t aligned_code_delta = aligned_offset - offset; + if (aligned_code_delta != 0) { + off_t new_offset = out.Seek(aligned_code_delta, kSeekCurrent); + size_code_alignment_ += aligned_code_delta; + if (static_cast<uint32_t>(new_offset) != aligned_offset) { + PLOG(ERROR) << "Failed to seek to align oat code. Actual: " << new_offset + << " Expected: " << aligned_offset << " File: " << out.GetLocation(); + return 0; + } + offset += aligned_code_delta; + DCHECK_OFFSET(); + } + DCHECK_ALIGNED(offset, kArmAlignment); + const std::vector<uint8_t>& code = compiled_method->GetCode(); + uint32_t code_size = code.size() * sizeof(code[0]); + CHECK_NE(code_size, 0U); + + // Deduplicate code arrays + size_t code_offset = offset + sizeof(code_size) + compiled_method->CodeDelta(); + SafeMap<const std::vector<uint8_t>*, uint32_t>::iterator code_iter = code_offsets_.find(&code); + if (code_iter != code_offsets_.end() && code_offset != method_offsets.code_offset_) { + DCHECK(code_iter->second == method_offsets.code_offset_) + << PrettyMethod(method_idx, dex_file); + } else { + DCHECK(code_offset == method_offsets.code_offset_) << PrettyMethod(method_idx, dex_file); + if (!out.WriteFully(&code_size, sizeof(code_size))) { + ReportWriteFailure("method code size", method_idx, dex_file, out); + return 0; + } + size_code_size_ += sizeof(code_size); + offset += sizeof(code_size); + DCHECK_OFFSET(); + if (!out.WriteFully(&code[0], code_size)) { + ReportWriteFailure("method code", method_idx, dex_file, out); + return 0; + } + size_code_ += code_size; + offset += code_size; + } + DCHECK_OFFSET(); +#endif + + 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 + SafeMap<const std::vector<uint32_t>*, uint32_t>::iterator mapping_iter = + mapping_table_offsets_.find(&mapping_table); + if (mapping_iter != mapping_table_offsets_.end() && + 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) + || offset == method_offsets.mapping_table_offset_) + << PrettyMethod(method_idx, dex_file); + if (!out.WriteFully(&mapping_table[0], mapping_table_size)) { + ReportWriteFailure("mapping table", method_idx, dex_file, out); + return 0; + } + size_mapping_table_ += mapping_table_size; + offset += mapping_table_size; + } + DCHECK_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 + SafeMap<const std::vector<uint16_t>*, uint32_t>::iterator vmap_iter = + vmap_table_offsets_.find(&vmap_table); + if (vmap_iter != vmap_table_offsets_.end() && + 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) + || offset == method_offsets.vmap_table_offset_) + << PrettyMethod(method_idx, dex_file); + if (!out.WriteFully(&vmap_table[0], vmap_table_size)) { + ReportWriteFailure("vmap table", method_idx, dex_file, out); + return 0; + } + size_vmap_table_ += vmap_table_size; + offset += vmap_table_size; + } + DCHECK_OFFSET(); + + const std::vector<uint8_t>& gc_map = compiled_method->GetGcMap(); + size_t gc_map_size = gc_map.size() * sizeof(gc_map[0]); + + // Deduplicate GC maps + SafeMap<const std::vector<uint8_t>*, uint32_t>::iterator gc_map_iter = + gc_map_offsets_.find(&gc_map); + if (gc_map_iter != gc_map_offsets_.end() && + offset != method_offsets.gc_map_offset_) { + DCHECK((gc_map_size == 0 && method_offsets.gc_map_offset_ == 0) + || gc_map_iter->second == method_offsets.gc_map_offset_) + << PrettyMethod(method_idx, dex_file); + } else { + DCHECK((gc_map_size == 0 && method_offsets.gc_map_offset_ == 0) + || offset == method_offsets.gc_map_offset_) + << PrettyMethod(method_idx, dex_file); + if (!out.WriteFully(&gc_map[0], gc_map_size)) { + ReportWriteFailure("GC map", method_idx, dex_file, out); + return 0; + } + size_gc_map_ += gc_map_size; + offset += gc_map_size; + } + DCHECK_OFFSET(); + } + + return offset; +} + +OatWriter::OatDexFile::OatDexFile(size_t offset, const DexFile& dex_file) { + offset_ = offset; + 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_location_checksum_ = dex_file.GetLocationChecksum(); + 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_location_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_location_checksum_, sizeof(dex_file_location_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(OatWriter* oat_writer, OutputStream& out) const { + DCHECK_OFFSET_(); + if (!out.WriteFully(&dex_file_location_size_, sizeof(dex_file_location_size_))) { + PLOG(ERROR) << "Failed to write dex file location length to " << out.GetLocation(); + return false; + } + oat_writer->size_oat_dex_file_location_size_ += sizeof(dex_file_location_size_); + if (!out.WriteFully(dex_file_location_data_, dex_file_location_size_)) { + PLOG(ERROR) << "Failed to write dex file location data to " << out.GetLocation(); + return false; + } + oat_writer->size_oat_dex_file_location_data_ += dex_file_location_size_; + if (!out.WriteFully(&dex_file_location_checksum_, sizeof(dex_file_location_checksum_))) { + PLOG(ERROR) << "Failed to write dex file location checksum to " << out.GetLocation(); + return false; + } + oat_writer->size_oat_dex_file_location_checksum_ += sizeof(dex_file_location_checksum_); + if (!out.WriteFully(&dex_file_offset_, sizeof(dex_file_offset_))) { + PLOG(ERROR) << "Failed to write dex file offset to " << out.GetLocation(); + return false; + } + oat_writer->size_oat_dex_file_offset_ += sizeof(dex_file_offset_); + if (!out.WriteFully(&methods_offsets_[0], + sizeof(methods_offsets_[0]) * methods_offsets_.size())) { + PLOG(ERROR) << "Failed to write methods offsets to " << out.GetLocation(); + return false; + } + oat_writer->size_oat_dex_file_methods_offsets_ += + sizeof(methods_offsets_[0]) * methods_offsets_.size(); + return true; +} + +OatWriter::OatClass::OatClass(size_t offset, mirror::Class::Status status, uint32_t methods_count) { + offset_ = offset; + status_ = status; + method_offsets_.resize(methods_count); +} + +size_t OatWriter::OatClass::GetOatMethodOffsetsOffsetFromOatHeader( + size_t class_def_method_index_) const { + return offset_ + GetOatMethodOffsetsOffsetFromOatClass(class_def_method_index_); +} + +size_t OatWriter::OatClass::GetOatMethodOffsetsOffsetFromOatClass( + size_t class_def_method_index_) const { + return sizeof(status_) + + (sizeof(method_offsets_[0]) * class_def_method_index_); +} + +size_t OatWriter::OatClass::SizeOf() const { + return GetOatMethodOffsetsOffsetFromOatClass(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(OatWriter* oat_writer, OutputStream& out) const { + DCHECK_OFFSET_(); + if (!out.WriteFully(&status_, sizeof(status_))) { + PLOG(ERROR) << "Failed to write class status to " << out.GetLocation(); + return false; + } + oat_writer->size_oat_class_status_ += sizeof(status_); + DCHECK_EQ(static_cast<off_t>(GetOatMethodOffsetsOffsetFromOatHeader(0)), + out.Seek(0, kSeekCurrent)); + if (!out.WriteFully(&method_offsets_[0], + sizeof(method_offsets_[0]) * method_offsets_.size())) { + PLOG(ERROR) << "Failed to write method offsets to " << out.GetLocation(); + return false; + } + oat_writer->size_oat_class_method_offsets_ += sizeof(method_offsets_[0]) * method_offsets_.size(); + DCHECK_EQ(static_cast<off_t>(GetOatMethodOffsetsOffsetFromOatHeader(method_offsets_.size())), + out.Seek(0, kSeekCurrent)); + return true; +} + +} // namespace art |