| /* |
| * 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/bit_vector.h" |
| #include "base/stl_util.h" |
| #include "base/unix_file/fd_file.h" |
| #include "class_linker.h" |
| #include "compiled_class.h" |
| #include "dex_file-inl.h" |
| #include "dex/verification_results.h" |
| #include "gc/space/space.h" |
| #include "mirror/art_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 "handle_scope-inl.h" |
| #include "verifier/method_verifier.h" |
| |
| namespace art { |
| |
| #define DCHECK_OFFSET() \ |
| DCHECK_EQ(static_cast<off_t>(file_offset + relative_offset), out->Seek(0, kSeekCurrent)) \ |
| << "file_offset=" << file_offset << " relative_offset=" << relative_offset |
| |
| #define DCHECK_OFFSET_() \ |
| DCHECK_EQ(static_cast<off_t>(file_offset + offset_), out->Seek(0, kSeekCurrent)) \ |
| << "file_offset=" << file_offset << " offset_=" << offset_ |
| |
| OatWriter::OatWriter(const std::vector<const DexFile*>& dex_files, |
| uint32_t image_file_location_oat_checksum, |
| uintptr_t image_file_location_oat_begin, |
| int32_t image_patch_delta, |
| const CompilerDriver* compiler, |
| TimingLogger* timings, |
| SafeMap<std::string, std::string>* key_value_store) |
| : 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_patch_delta_(image_patch_delta), |
| key_value_store_(key_value_store), |
| oat_header_(NULL), |
| size_dex_file_alignment_(0), |
| size_executable_offset_alignment_(0), |
| size_oat_header_(0), |
| size_oat_header_key_value_store_(0), |
| size_dex_file_(0), |
| size_interpreter_to_interpreter_bridge_(0), |
| size_interpreter_to_compiled_code_bridge_(0), |
| size_jni_dlsym_lookup_(0), |
| size_portable_imt_conflict_trampoline_(0), |
| size_portable_resolution_trampoline_(0), |
| size_portable_to_interpreter_bridge_(0), |
| size_quick_generic_jni_trampoline_(0), |
| size_quick_imt_conflict_trampoline_(0), |
| size_quick_resolution_trampoline_(0), |
| size_quick_to_interpreter_bridge_(0), |
| size_trampoline_alignment_(0), |
| size_method_header_(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_type_(0), |
| size_oat_class_status_(0), |
| size_oat_class_method_bitmaps_(0), |
| size_oat_class_method_offsets_(0) { |
| CHECK(key_value_store != nullptr); |
| |
| size_t offset; |
| { |
| TimingLogger::ScopedTiming split("InitOatHeader", timings); |
| offset = InitOatHeader(); |
| } |
| { |
| TimingLogger::ScopedTiming split("InitOatDexFiles", timings); |
| offset = InitOatDexFiles(offset); |
| } |
| { |
| TimingLogger::ScopedTiming split("InitDexFiles", timings); |
| offset = InitDexFiles(offset); |
| } |
| { |
| TimingLogger::ScopedTiming split("InitOatClasses", timings); |
| offset = InitOatClasses(offset); |
| } |
| { |
| TimingLogger::ScopedTiming split("InitOatMaps", timings); |
| offset = InitOatMaps(offset); |
| } |
| { |
| TimingLogger::ScopedTiming split("InitOatCode", timings); |
| offset = InitOatCode(offset); |
| } |
| { |
| TimingLogger::ScopedTiming split("InitOatCodeDexFiles", timings); |
| offset = InitOatCodeDexFiles(offset); |
| } |
| size_ = offset; |
| |
| CHECK_EQ(dex_files_->size(), oat_dex_files_.size()); |
| CHECK_EQ(compiler->IsImage(), |
| key_value_store_->find(OatHeader::kImageLocationKey) == key_value_store_->end()); |
| CHECK_ALIGNED(image_patch_delta_, kPageSize); |
| } |
| |
| OatWriter::~OatWriter() { |
| delete oat_header_; |
| STLDeleteElements(&oat_dex_files_); |
| STLDeleteElements(&oat_classes_); |
| } |
| |
| struct OatWriter::GcMapDataAccess { |
| static const std::vector<uint8_t>* GetData(const CompiledMethod* compiled_method) ALWAYS_INLINE { |
| return &compiled_method->GetGcMap(); |
| } |
| |
| static uint32_t GetOffset(OatClass* oat_class, size_t method_offsets_index) ALWAYS_INLINE { |
| return oat_class->method_offsets_[method_offsets_index].gc_map_offset_; |
| } |
| |
| static void SetOffset(OatClass* oat_class, size_t method_offsets_index, uint32_t offset) |
| ALWAYS_INLINE { |
| oat_class->method_offsets_[method_offsets_index].gc_map_offset_ = offset; |
| } |
| |
| static const char* Name() ALWAYS_INLINE { |
| return "GC map"; |
| } |
| }; |
| |
| struct OatWriter::MappingTableDataAccess { |
| static const std::vector<uint8_t>* GetData(const CompiledMethod* compiled_method) ALWAYS_INLINE { |
| return &compiled_method->GetMappingTable(); |
| } |
| |
| static uint32_t GetOffset(OatClass* oat_class, size_t method_offsets_index) ALWAYS_INLINE { |
| uint32_t offset = oat_class->method_headers_[method_offsets_index].mapping_table_offset_; |
| return offset == 0u ? 0u : |
| (oat_class->method_offsets_[method_offsets_index].code_offset_ & ~1) - offset; |
| } |
| |
| static void SetOffset(OatClass* oat_class, size_t method_offsets_index, uint32_t offset) |
| ALWAYS_INLINE { |
| oat_class->method_headers_[method_offsets_index].mapping_table_offset_ = |
| (oat_class->method_offsets_[method_offsets_index].code_offset_ & ~1) - offset; |
| } |
| |
| static const char* Name() ALWAYS_INLINE { |
| return "mapping table"; |
| } |
| }; |
| |
| struct OatWriter::VmapTableDataAccess { |
| static const std::vector<uint8_t>* GetData(const CompiledMethod* compiled_method) ALWAYS_INLINE { |
| return &compiled_method->GetVmapTable(); |
| } |
| |
| static uint32_t GetOffset(OatClass* oat_class, size_t method_offsets_index) ALWAYS_INLINE { |
| uint32_t offset = oat_class->method_headers_[method_offsets_index].vmap_table_offset_; |
| return offset == 0u ? 0u : |
| (oat_class->method_offsets_[method_offsets_index].code_offset_ & ~1) - offset; |
| } |
| |
| static void SetOffset(OatClass* oat_class, size_t method_offsets_index, uint32_t offset) |
| ALWAYS_INLINE { |
| oat_class->method_headers_[method_offsets_index].vmap_table_offset_ = |
| (oat_class->method_offsets_[method_offsets_index].code_offset_ & ~1) - offset; |
| } |
| |
| static const char* Name() ALWAYS_INLINE { |
| return "vmap table"; |
| } |
| }; |
| |
| class OatWriter::DexMethodVisitor { |
| public: |
| DexMethodVisitor(OatWriter* writer, size_t offset) |
| : writer_(writer), |
| offset_(offset), |
| dex_file_(nullptr), |
| class_def_index_(DexFile::kDexNoIndex) { |
| } |
| |
| virtual bool StartClass(const DexFile* dex_file, size_t class_def_index) { |
| DCHECK(dex_file_ == nullptr); |
| DCHECK_EQ(class_def_index_, DexFile::kDexNoIndex); |
| dex_file_ = dex_file; |
| class_def_index_ = class_def_index; |
| return true; |
| } |
| |
| virtual bool VisitMethod(size_t class_def_method_index, const ClassDataItemIterator& it) = 0; |
| |
| virtual bool EndClass() { |
| if (kIsDebugBuild) { |
| dex_file_ = nullptr; |
| class_def_index_ = DexFile::kDexNoIndex; |
| } |
| return true; |
| } |
| |
| size_t GetOffset() const { |
| return offset_; |
| } |
| |
| protected: |
| virtual ~DexMethodVisitor() { } |
| |
| OatWriter* const writer_; |
| |
| // The offset is usually advanced for each visited method by the derived class. |
| size_t offset_; |
| |
| // The dex file and class def index are set in StartClass(). |
| const DexFile* dex_file_; |
| size_t class_def_index_; |
| }; |
| |
| class OatWriter::OatDexMethodVisitor : public DexMethodVisitor { |
| public: |
| OatDexMethodVisitor(OatWriter* writer, size_t offset) |
| : DexMethodVisitor(writer, offset), |
| oat_class_index_(0u), |
| method_offsets_index_(0u) { |
| } |
| |
| bool StartClass(const DexFile* dex_file, size_t class_def_index) { |
| DexMethodVisitor::StartClass(dex_file, class_def_index); |
| DCHECK_LT(oat_class_index_, writer_->oat_classes_.size()); |
| method_offsets_index_ = 0u; |
| return true; |
| } |
| |
| bool EndClass() { |
| ++oat_class_index_; |
| return DexMethodVisitor::EndClass(); |
| } |
| |
| protected: |
| size_t oat_class_index_; |
| size_t method_offsets_index_; |
| }; |
| |
| class OatWriter::InitOatClassesMethodVisitor : public DexMethodVisitor { |
| public: |
| InitOatClassesMethodVisitor(OatWriter* writer, size_t offset) |
| : DexMethodVisitor(writer, offset), |
| compiled_methods_(), |
| num_non_null_compiled_methods_(0u) { |
| compiled_methods_.reserve(256u); |
| } |
| |
| bool StartClass(const DexFile* dex_file, size_t class_def_index) { |
| DexMethodVisitor::StartClass(dex_file, class_def_index); |
| compiled_methods_.clear(); |
| num_non_null_compiled_methods_ = 0u; |
| return true; |
| } |
| |
| bool VisitMethod(size_t class_def_method_index, const ClassDataItemIterator& it) { |
| // Fill in the compiled_methods_ array for methods that have a |
| // CompiledMethod. We track the number of non-null entries in |
| // num_non_null_compiled_methods_ since we only want to allocate |
| // OatMethodOffsets for the compiled methods. |
| uint32_t method_idx = it.GetMemberIndex(); |
| CompiledMethod* compiled_method = |
| writer_->compiler_driver_->GetCompiledMethod(MethodReference(dex_file_, method_idx)); |
| compiled_methods_.push_back(compiled_method); |
| if (compiled_method != nullptr) { |
| ++num_non_null_compiled_methods_; |
| } |
| return true; |
| } |
| |
| bool EndClass() { |
| ClassReference class_ref(dex_file_, class_def_index_); |
| CompiledClass* compiled_class = writer_->compiler_driver_->GetCompiledClass(class_ref); |
| mirror::Class::Status status; |
| if (compiled_class != NULL) { |
| status = compiled_class->GetStatus(); |
| } else if (writer_->compiler_driver_->GetVerificationResults()->IsClassRejected(class_ref)) { |
| status = mirror::Class::kStatusError; |
| } else { |
| status = mirror::Class::kStatusNotReady; |
| } |
| |
| OatClass* oat_class = new OatClass(offset_, compiled_methods_, |
| num_non_null_compiled_methods_, status); |
| writer_->oat_classes_.push_back(oat_class); |
| offset_ += oat_class->SizeOf(); |
| return DexMethodVisitor::EndClass(); |
| } |
| |
| private: |
| std::vector<CompiledMethod*> compiled_methods_; |
| size_t num_non_null_compiled_methods_; |
| }; |
| |
| class OatWriter::InitCodeMethodVisitor : public OatDexMethodVisitor { |
| public: |
| InitCodeMethodVisitor(OatWriter* writer, size_t offset) |
| : OatDexMethodVisitor(writer, offset) { |
| } |
| |
| bool VisitMethod(size_t class_def_method_index, const ClassDataItemIterator& it) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| OatClass* oat_class = writer_->oat_classes_[oat_class_index_]; |
| CompiledMethod* compiled_method = oat_class->GetCompiledMethod(class_def_method_index); |
| |
| if (compiled_method != nullptr) { |
| // Derived from CompiledMethod. |
| uint32_t quick_code_offset = 0; |
| |
| const std::vector<uint8_t>* portable_code = compiled_method->GetPortableCode(); |
| const std::vector<uint8_t>* quick_code = compiled_method->GetQuickCode(); |
| if (portable_code != nullptr) { |
| CHECK(quick_code == nullptr); |
| size_t oat_method_offsets_offset = |
| oat_class->GetOatMethodOffsetsOffsetFromOatHeader(class_def_method_index); |
| compiled_method->AddOatdataOffsetToCompliledCodeOffset( |
| oat_method_offsets_offset + OFFSETOF_MEMBER(OatMethodOffsets, code_offset_)); |
| } else { |
| CHECK(quick_code != nullptr); |
| offset_ = compiled_method->AlignCode(offset_); |
| DCHECK_ALIGNED_PARAM(offset_, |
| GetInstructionSetAlignment(compiled_method->GetInstructionSet())); |
| uint32_t code_size = quick_code->size() * sizeof(uint8_t); |
| CHECK_NE(code_size, 0U); |
| uint32_t thumb_offset = compiled_method->CodeDelta(); |
| quick_code_offset = offset_ + sizeof(OatQuickMethodHeader) + thumb_offset; |
| |
| bool force_debug_capture = false; |
| bool deduped = false; |
| |
| // Deduplicate code arrays. |
| auto lb = dedupe_map_.lower_bound(compiled_method); |
| if (lb != dedupe_map_.end() && !dedupe_map_.key_comp()(compiled_method, lb->first)) { |
| quick_code_offset = lb->second; |
| deduped = true; |
| } else { |
| dedupe_map_.PutBefore(lb, compiled_method, quick_code_offset); |
| } |
| |
| // Update quick method header. |
| DCHECK_LT(method_offsets_index_, oat_class->method_headers_.size()); |
| OatQuickMethodHeader* method_header = &oat_class->method_headers_[method_offsets_index_]; |
| uint32_t mapping_table_offset = method_header->mapping_table_offset_; |
| uint32_t vmap_table_offset = method_header->vmap_table_offset_; |
| // The code offset was 0 when the mapping/vmap table offset was set, so it's set |
| // to 0-offset and we need to adjust it by code_offset. |
| uint32_t code_offset = quick_code_offset - thumb_offset; |
| if (mapping_table_offset != 0u) { |
| mapping_table_offset += code_offset; |
| DCHECK_LT(mapping_table_offset, code_offset); |
| } |
| if (vmap_table_offset != 0u) { |
| vmap_table_offset += code_offset; |
| DCHECK_LT(vmap_table_offset, code_offset); |
| } |
| uint32_t frame_size_in_bytes = compiled_method->GetFrameSizeInBytes(); |
| uint32_t core_spill_mask = compiled_method->GetCoreSpillMask(); |
| uint32_t fp_spill_mask = compiled_method->GetFpSpillMask(); |
| *method_header = OatQuickMethodHeader(mapping_table_offset, vmap_table_offset, |
| frame_size_in_bytes, core_spill_mask, fp_spill_mask, |
| code_size); |
| |
| // Update checksum if this wasn't a duplicate. |
| if (!deduped) { |
| writer_->oat_header_->UpdateChecksum(method_header, sizeof(*method_header)); |
| offset_ += sizeof(*method_header); // Method header is prepended before code. |
| writer_->oat_header_->UpdateChecksum(&(*quick_code)[0], code_size); |
| offset_ += code_size; |
| } |
| |
| uint32_t quick_code_start = quick_code_offset - writer_->oat_header_->GetExecutableOffset(); |
| std::vector<uint8_t>* cfi_info = writer_->compiler_driver_->GetCallFrameInformation(); |
| if (cfi_info != nullptr) { |
| // Copy in the FDE, if present |
| const std::vector<uint8_t>* fde = compiled_method->GetCFIInfo(); |
| if (fde != nullptr) { |
| // Copy the information into cfi_info and then fix the address in the new copy. |
| int cur_offset = cfi_info->size(); |
| cfi_info->insert(cfi_info->end(), fde->begin(), fde->end()); |
| |
| // Set the 'CIE_pointer' field to cur_offset+4. |
| uint32_t CIE_pointer = cur_offset + 4; |
| uint32_t offset_to_update = cur_offset + sizeof(uint32_t); |
| (*cfi_info)[offset_to_update+0] = CIE_pointer; |
| (*cfi_info)[offset_to_update+1] = CIE_pointer >> 8; |
| (*cfi_info)[offset_to_update+2] = CIE_pointer >> 16; |
| (*cfi_info)[offset_to_update+3] = CIE_pointer >> 24; |
| |
| // Set the 'initial_location' field to address the start of the method. |
| offset_to_update = cur_offset + 2*sizeof(uint32_t); |
| (*cfi_info)[offset_to_update+0] = quick_code_start; |
| (*cfi_info)[offset_to_update+1] = quick_code_start >> 8; |
| (*cfi_info)[offset_to_update+2] = quick_code_start >> 16; |
| (*cfi_info)[offset_to_update+3] = quick_code_start >> 24; |
| force_debug_capture = true; |
| } |
| } |
| |
| |
| if (writer_->compiler_driver_->DidIncludeDebugSymbols() || force_debug_capture) { |
| // Record debug information for this function if we are doing that or |
| // we have CFI and so need it. |
| std::string name = PrettyMethod(it.GetMemberIndex(), *dex_file_, true); |
| if (deduped) { |
| // TODO We should place the DEDUPED tag on the first instance of a |
| // deduplicated symbol so that it will show up in a debuggerd crash |
| // report. |
| name += " [ DEDUPED ]"; |
| } |
| writer_->method_info_.push_back(DebugInfo(name, quick_code_start, |
| quick_code_start + code_size)); |
| } |
| } |
| |
| if (kIsDebugBuild) { |
| // We expect GC maps except when the class hasn't been verified or the method is native. |
| const CompilerDriver* compiler_driver = writer_->compiler_driver_; |
| 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 (compiler_driver->GetVerificationResults()->IsClassRejected(class_ref)) { |
| status = mirror::Class::kStatusError; |
| } else { |
| status = mirror::Class::kStatusNotReady; |
| } |
| const std::vector<uint8_t>& gc_map = compiled_method->GetGcMap(); |
| size_t gc_map_size = gc_map.size() * sizeof(gc_map[0]); |
| bool is_native = it.MemberIsNative(); |
| 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(it.GetMemberIndex(), *dex_file_); |
| } |
| |
| DCHECK_LT(method_offsets_index_, oat_class->method_offsets_.size()); |
| OatMethodOffsets* offsets = &oat_class->method_offsets_[method_offsets_index_]; |
| offsets->code_offset_ = quick_code_offset; |
| ++method_offsets_index_; |
| } |
| |
| return true; |
| } |
| |
| private: |
| // Deduplication is already done on a pointer basis by the compiler driver, |
| // so we can simply compare the pointers to find out if things are duplicated. |
| SafeMap<const CompiledMethod*, uint32_t, CodeOffsetsKeyComparator> dedupe_map_; |
| }; |
| |
| template <typename DataAccess> |
| class OatWriter::InitMapMethodVisitor : public OatDexMethodVisitor { |
| public: |
| InitMapMethodVisitor(OatWriter* writer, size_t offset) |
| : OatDexMethodVisitor(writer, offset) { |
| } |
| |
| bool VisitMethod(size_t class_def_method_index, const ClassDataItemIterator& it) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| OatClass* oat_class = writer_->oat_classes_[oat_class_index_]; |
| CompiledMethod* compiled_method = oat_class->GetCompiledMethod(class_def_method_index); |
| |
| if (compiled_method != nullptr) { |
| DCHECK_LT(method_offsets_index_, oat_class->method_offsets_.size()); |
| DCHECK_EQ(DataAccess::GetOffset(oat_class, method_offsets_index_), 0u); |
| |
| const std::vector<uint8_t>* map = DataAccess::GetData(compiled_method); |
| uint32_t map_size = map->size() * sizeof((*map)[0]); |
| if (map_size != 0u) { |
| auto lb = dedupe_map_.lower_bound(map); |
| if (lb != dedupe_map_.end() && !dedupe_map_.key_comp()(map, lb->first)) { |
| DataAccess::SetOffset(oat_class, method_offsets_index_, lb->second); |
| } else { |
| DataAccess::SetOffset(oat_class, method_offsets_index_, offset_); |
| dedupe_map_.PutBefore(lb, map, offset_); |
| offset_ += map_size; |
| writer_->oat_header_->UpdateChecksum(&(*map)[0], map_size); |
| } |
| } |
| ++method_offsets_index_; |
| } |
| |
| return true; |
| } |
| |
| private: |
| // Deduplication is already done on a pointer basis by the compiler driver, |
| // so we can simply compare the pointers to find out if things are duplicated. |
| SafeMap<const std::vector<uint8_t>*, uint32_t> dedupe_map_; |
| }; |
| |
| class OatWriter::InitImageMethodVisitor : public OatDexMethodVisitor { |
| public: |
| InitImageMethodVisitor(OatWriter* writer, size_t offset) |
| : OatDexMethodVisitor(writer, offset) { |
| } |
| |
| bool VisitMethod(size_t class_def_method_index, const ClassDataItemIterator& it) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| OatClass* oat_class = writer_->oat_classes_[oat_class_index_]; |
| CompiledMethod* compiled_method = oat_class->GetCompiledMethod(class_def_method_index); |
| |
| OatMethodOffsets offsets(0u, 0u); |
| if (compiled_method != nullptr) { |
| DCHECK_LT(method_offsets_index_, oat_class->method_offsets_.size()); |
| offsets = oat_class->method_offsets_[method_offsets_index_]; |
| ++method_offsets_index_; |
| } |
| |
| ClassLinker* linker = Runtime::Current()->GetClassLinker(); |
| InvokeType invoke_type = it.GetMethodInvokeType(dex_file_->GetClassDef(class_def_index_)); |
| // Unchecked as we hold mutator_lock_ on entry. |
| ScopedObjectAccessUnchecked soa(Thread::Current()); |
| StackHandleScope<2> hs(soa.Self()); |
| Handle<mirror::DexCache> dex_cache(hs.NewHandle(linker->FindDexCache(*dex_file_))); |
| mirror::ArtMethod* method = linker->ResolveMethod(*dex_file_, it.GetMemberIndex(), dex_cache, |
| NullHandle<mirror::ClassLoader>(), |
| NullHandle<mirror::ArtMethod>(), |
| invoke_type); |
| CHECK(method != NULL) << PrettyMethod(it.GetMemberIndex(), *dex_file_, true); |
| // Portable code offsets are set by ElfWriterMclinker::FixupCompiledCodeOffset after linking. |
| method->SetQuickOatCodeOffset(offsets.code_offset_); |
| method->SetOatNativeGcMapOffset(offsets.gc_map_offset_); |
| |
| return true; |
| } |
| }; |
| |
| class OatWriter::WriteCodeMethodVisitor : public OatDexMethodVisitor { |
| public: |
| WriteCodeMethodVisitor(OatWriter* writer, OutputStream* out, const size_t file_offset, |
| size_t relative_offset) |
| : OatDexMethodVisitor(writer, relative_offset), |
| out_(out), |
| file_offset_(file_offset) { |
| } |
| |
| bool VisitMethod(size_t class_def_method_index, const ClassDataItemIterator& it) { |
| OatClass* oat_class = writer_->oat_classes_[oat_class_index_]; |
| const CompiledMethod* compiled_method = oat_class->GetCompiledMethod(class_def_method_index); |
| |
| if (compiled_method != NULL) { // ie. not an abstract method |
| size_t file_offset = file_offset_; |
| OutputStream* out = out_; |
| |
| const std::vector<uint8_t>* quick_code = compiled_method->GetQuickCode(); |
| if (quick_code != nullptr) { |
| CHECK(compiled_method->GetPortableCode() == nullptr); |
| uint32_t aligned_offset = compiled_method->AlignCode(offset_); |
| uint32_t aligned_code_delta = aligned_offset - offset_; |
| if (aligned_code_delta != 0) { |
| static const uint8_t kPadding[] = { |
| 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u |
| }; |
| DCHECK_LE(aligned_code_delta, sizeof(kPadding)); |
| if (UNLIKELY(!out->WriteFully(kPadding, aligned_code_delta))) { |
| ReportWriteFailure("code alignment padding", it); |
| return false; |
| } |
| writer_->size_code_alignment_ += aligned_code_delta; |
| offset_ += aligned_code_delta; |
| DCHECK_OFFSET_(); |
| } |
| DCHECK_ALIGNED_PARAM(offset_, |
| GetInstructionSetAlignment(compiled_method->GetInstructionSet())); |
| uint32_t code_size = quick_code->size() * sizeof(uint8_t); |
| CHECK_NE(code_size, 0U); |
| |
| // Deduplicate code arrays. |
| const OatMethodOffsets& method_offsets = oat_class->method_offsets_[method_offsets_index_]; |
| DCHECK(method_offsets.code_offset_ < offset_ || method_offsets.code_offset_ == |
| offset_ + sizeof(OatQuickMethodHeader) + compiled_method->CodeDelta()) |
| << PrettyMethod(it.GetMemberIndex(), *dex_file_); |
| if (method_offsets.code_offset_ >= offset_) { |
| const OatQuickMethodHeader& method_header = oat_class->method_headers_[method_offsets_index_]; |
| if (!out->WriteFully(&method_header, sizeof(method_header))) { |
| ReportWriteFailure("method header", it); |
| return false; |
| } |
| writer_->size_method_header_ += sizeof(method_header); |
| offset_ += sizeof(method_header); |
| DCHECK_OFFSET_(); |
| if (!out->WriteFully(&(*quick_code)[0], code_size)) { |
| ReportWriteFailure("method code", it); |
| return false; |
| } |
| writer_->size_code_ += code_size; |
| offset_ += code_size; |
| } |
| DCHECK_OFFSET_(); |
| } |
| ++method_offsets_index_; |
| } |
| |
| return true; |
| } |
| |
| private: |
| OutputStream* const out_; |
| size_t const file_offset_; |
| |
| void ReportWriteFailure(const char* what, const ClassDataItemIterator& it) { |
| PLOG(ERROR) << "Failed to write " << what << " for " |
| << PrettyMethod(it.GetMemberIndex(), *dex_file_) << " to " << out_->GetLocation(); |
| } |
| }; |
| |
| template <typename DataAccess> |
| class OatWriter::WriteMapMethodVisitor : public OatDexMethodVisitor { |
| public: |
| WriteMapMethodVisitor(OatWriter* writer, OutputStream* out, const size_t file_offset, |
| size_t relative_offset) |
| : OatDexMethodVisitor(writer, relative_offset), |
| out_(out), |
| file_offset_(file_offset) { |
| } |
| |
| bool VisitMethod(size_t class_def_method_index, const ClassDataItemIterator& it) { |
| OatClass* oat_class = writer_->oat_classes_[oat_class_index_]; |
| const CompiledMethod* compiled_method = oat_class->GetCompiledMethod(class_def_method_index); |
| |
| if (compiled_method != NULL) { // ie. not an abstract method |
| size_t file_offset = file_offset_; |
| OutputStream* out = out_; |
| |
| uint32_t map_offset = DataAccess::GetOffset(oat_class, method_offsets_index_); |
| ++method_offsets_index_; |
| |
| // Write deduplicated map. |
| const std::vector<uint8_t>* map = DataAccess::GetData(compiled_method); |
| size_t map_size = map->size() * sizeof((*map)[0]); |
| DCHECK((map_size == 0u && map_offset == 0u) || |
| (map_size != 0u && map_offset != 0u && map_offset <= offset_)) |
| << PrettyMethod(it.GetMemberIndex(), *dex_file_); |
| if (map_size != 0u && map_offset == offset_) { |
| if (UNLIKELY(!out->WriteFully(&(*map)[0], map_size))) { |
| ReportWriteFailure(it); |
| return false; |
| } |
| offset_ += map_size; |
| } |
| DCHECK_OFFSET_(); |
| } |
| |
| return true; |
| } |
| |
| private: |
| OutputStream* const out_; |
| size_t const file_offset_; |
| |
| void ReportWriteFailure(const ClassDataItemIterator& it) { |
| PLOG(ERROR) << "Failed to write " << DataAccess::Name() << " for " |
| << PrettyMethod(it.GetMemberIndex(), *dex_file_) << " to " << out_->GetLocation(); |
| } |
| }; |
| |
| // Visit all methods from all classes in all dex files with the specified visitor. |
| bool OatWriter::VisitDexMethods(DexMethodVisitor* visitor) { |
| for (const DexFile* dex_file : *dex_files_) { |
| const size_t class_def_count = dex_file->NumClassDefs(); |
| for (size_t class_def_index = 0; class_def_index != class_def_count; ++class_def_index) { |
| if (UNLIKELY(!visitor->StartClass(dex_file, class_def_index))) { |
| return false; |
| } |
| const DexFile::ClassDef& class_def = dex_file->GetClassDef(class_def_index); |
| const byte* class_data = dex_file->GetClassData(class_def); |
| if (class_data != NULL) { // ie not an empty class, such as a marker interface |
| ClassDataItemIterator it(*dex_file, class_data); |
| while (it.HasNextStaticField()) { |
| it.Next(); |
| } |
| while (it.HasNextInstanceField()) { |
| it.Next(); |
| } |
| size_t class_def_method_index = 0u; |
| while (it.HasNextDirectMethod()) { |
| if (!visitor->VisitMethod(class_def_method_index, it)) { |
| return false; |
| } |
| ++class_def_method_index; |
| it.Next(); |
| } |
| while (it.HasNextVirtualMethod()) { |
| if (UNLIKELY(!visitor->VisitMethod(class_def_method_index, it))) { |
| return false; |
| } |
| ++class_def_method_index; |
| it.Next(); |
| } |
| } |
| if (UNLIKELY(!visitor->EndClass())) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| size_t OatWriter::InitOatHeader() { |
| oat_header_ = OatHeader::Create(compiler_driver_->GetInstructionSet(), |
| compiler_driver_->GetInstructionSetFeatures(), |
| dex_files_, |
| image_file_location_oat_checksum_, |
| image_file_location_oat_begin_, |
| key_value_store_); |
| |
| return oat_header_->GetHeaderSize(); |
| } |
| |
| 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) { |
| // calculate the offsets within OatDexFiles to OatClasses |
| InitOatClassesMethodVisitor visitor(this, offset); |
| bool success = VisitDexMethods(&visitor); |
| CHECK(success); |
| offset = visitor.GetOffset(); |
| |
| // Update oat_dex_files_. |
| auto oat_class_it = oat_classes_.begin(); |
| for (OatDexFile* oat_dex_file : oat_dex_files_) { |
| for (uint32_t& offset : oat_dex_file->methods_offsets_) { |
| DCHECK(oat_class_it != oat_classes_.end()); |
| offset = (*oat_class_it)->offset_; |
| ++oat_class_it; |
| } |
| oat_dex_file->UpdateChecksum(oat_header_); |
| } |
| CHECK(oat_class_it == oat_classes_.end()); |
| |
| return offset; |
| } |
| |
| size_t OatWriter::InitOatMaps(size_t offset) { |
| #define VISIT(VisitorType) \ |
| do { \ |
| VisitorType visitor(this, offset); \ |
| bool success = VisitDexMethods(&visitor); \ |
| DCHECK(success); \ |
| offset = visitor.GetOffset(); \ |
| } while (false) |
| |
| VISIT(InitMapMethodVisitor<GcMapDataAccess>); |
| VISIT(InitMapMethodVisitor<MappingTableDataAccess>); |
| VISIT(InitMapMethodVisitor<VmapTableDataAccess>); |
| |
| #undef VISIT |
| |
| return offset; |
| } |
| |
| size_t OatWriter::InitOatCode(size_t offset) { |
| // calculate the offsets within OatHeader to executable code |
| size_t old_offset = offset; |
| size_t adjusted_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()) { |
| CHECK_EQ(image_patch_delta_, 0); |
| InstructionSet instruction_set = compiler_driver_->GetInstructionSet(); |
| |
| #define DO_TRAMPOLINE(field, fn_name) \ |
| offset = CompiledCode::AlignCode(offset, instruction_set); \ |
| adjusted_offset = offset + CompiledCode::CodeDelta(instruction_set); \ |
| oat_header_->Set ## fn_name ## Offset(adjusted_offset); \ |
| field.reset(compiler_driver_->Create ## fn_name()); \ |
| offset += field->size(); |
| |
| DO_TRAMPOLINE(interpreter_to_interpreter_bridge_, InterpreterToInterpreterBridge); |
| DO_TRAMPOLINE(interpreter_to_compiled_code_bridge_, InterpreterToCompiledCodeBridge); |
| DO_TRAMPOLINE(jni_dlsym_lookup_, JniDlsymLookup); |
| DO_TRAMPOLINE(portable_imt_conflict_trampoline_, PortableImtConflictTrampoline); |
| DO_TRAMPOLINE(portable_resolution_trampoline_, PortableResolutionTrampoline); |
| DO_TRAMPOLINE(portable_to_interpreter_bridge_, PortableToInterpreterBridge); |
| DO_TRAMPOLINE(quick_generic_jni_trampoline_, QuickGenericJniTrampoline); |
| DO_TRAMPOLINE(quick_imt_conflict_trampoline_, QuickImtConflictTrampoline); |
| DO_TRAMPOLINE(quick_resolution_trampoline_, QuickResolutionTrampoline); |
| DO_TRAMPOLINE(quick_to_interpreter_bridge_, QuickToInterpreterBridge); |
| |
| #undef DO_TRAMPOLINE |
| } else { |
| oat_header_->SetInterpreterToInterpreterBridgeOffset(0); |
| oat_header_->SetInterpreterToCompiledCodeBridgeOffset(0); |
| oat_header_->SetJniDlsymLookupOffset(0); |
| oat_header_->SetPortableImtConflictTrampolineOffset(0); |
| oat_header_->SetPortableResolutionTrampolineOffset(0); |
| oat_header_->SetPortableToInterpreterBridgeOffset(0); |
| oat_header_->SetQuickGenericJniTrampolineOffset(0); |
| oat_header_->SetQuickImtConflictTrampolineOffset(0); |
| oat_header_->SetQuickResolutionTrampolineOffset(0); |
| oat_header_->SetQuickToInterpreterBridgeOffset(0); |
| oat_header_->SetImagePatchDelta(image_patch_delta_); |
| } |
| return offset; |
| } |
| |
| size_t OatWriter::InitOatCodeDexFiles(size_t offset) { |
| #define VISIT(VisitorType) \ |
| do { \ |
| VisitorType visitor(this, offset); \ |
| bool success = VisitDexMethods(&visitor); \ |
| DCHECK(success); \ |
| offset = visitor.GetOffset(); \ |
| } while (false) |
| |
| VISIT(InitCodeMethodVisitor); |
| if (compiler_driver_->IsImage()) { |
| VISIT(InitImageMethodVisitor); |
| } |
| |
| #undef VISIT |
| |
| return offset; |
| } |
| |
| bool OatWriter::Write(OutputStream* out) { |
| const size_t file_offset = out->Seek(0, kSeekCurrent); |
| |
| size_t header_size = oat_header_->GetHeaderSize(); |
| if (!out->WriteFully(oat_header_, header_size)) { |
| PLOG(ERROR) << "Failed to write oat header to " << out->GetLocation(); |
| return false; |
| } |
| size_oat_header_ += sizeof(OatHeader); |
| size_oat_header_key_value_store_ += oat_header_->GetHeaderSize() - sizeof(OatHeader); |
| |
| if (!WriteTables(out, file_offset)) { |
| LOG(ERROR) << "Failed to write oat tables to " << out->GetLocation(); |
| return false; |
| } |
| |
| size_t relative_offset = out->Seek(0, kSeekCurrent) - file_offset; |
| relative_offset = WriteMaps(out, file_offset, relative_offset); |
| if (relative_offset == 0) { |
| LOG(ERROR) << "Failed to write oat code to " << out->GetLocation(); |
| return false; |
| } |
| |
| relative_offset = WriteCode(out, file_offset, relative_offset); |
| if (relative_offset == 0) { |
| LOG(ERROR) << "Failed to write oat code to " << out->GetLocation(); |
| return false; |
| } |
| |
| relative_offset = WriteCodeDexFiles(out, file_offset, relative_offset); |
| if (relative_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) \ |
| VLOG(compiler) << #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_key_value_store_); |
| DO_STAT(size_dex_file_); |
| DO_STAT(size_interpreter_to_interpreter_bridge_); |
| DO_STAT(size_interpreter_to_compiled_code_bridge_); |
| DO_STAT(size_jni_dlsym_lookup_); |
| DO_STAT(size_portable_imt_conflict_trampoline_); |
| DO_STAT(size_portable_resolution_trampoline_); |
| DO_STAT(size_portable_to_interpreter_bridge_); |
| DO_STAT(size_quick_generic_jni_trampoline_); |
| DO_STAT(size_quick_imt_conflict_trampoline_); |
| DO_STAT(size_quick_resolution_trampoline_); |
| DO_STAT(size_quick_to_interpreter_bridge_); |
| DO_STAT(size_trampoline_alignment_); |
| DO_STAT(size_method_header_); |
| 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_type_); |
| DO_STAT(size_oat_class_status_); |
| DO_STAT(size_oat_class_method_bitmaps_); |
| DO_STAT(size_oat_class_method_offsets_); |
| #undef DO_STAT |
| |
| VLOG(compiler) << "size_total=" << PrettySize(size_total) << " (" << size_total << "B)"; \ |
| CHECK_EQ(file_offset + size_total, static_cast<uint32_t>(out->Seek(0, kSeekCurrent))); |
| CHECK_EQ(size_, size_total); |
| } |
| |
| CHECK_EQ(file_offset + size_, static_cast<uint32_t>(out->Seek(0, kSeekCurrent))); |
| CHECK_EQ(size_, relative_offset); |
| |
| return true; |
| } |
| |
| bool OatWriter::WriteTables(OutputStream* out, const size_t file_offset) { |
| for (size_t i = 0; i != oat_dex_files_.size(); ++i) { |
| if (!oat_dex_files_[i]->Write(this, out, file_offset)) { |
| 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 = file_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, file_offset)) { |
| PLOG(ERROR) << "Failed to write oat methods information to " << out->GetLocation(); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| size_t OatWriter::WriteMaps(OutputStream* out, const size_t file_offset, size_t relative_offset) { |
| #define VISIT(VisitorType) \ |
| do { \ |
| VisitorType visitor(this, out, file_offset, relative_offset); \ |
| if (UNLIKELY(!VisitDexMethods(&visitor))) { \ |
| return 0; \ |
| } \ |
| relative_offset = visitor.GetOffset(); \ |
| } while (false) |
| |
| size_t gc_maps_offset = relative_offset; |
| VISIT(WriteMapMethodVisitor<GcMapDataAccess>); |
| size_gc_map_ = relative_offset - gc_maps_offset; |
| |
| size_t mapping_tables_offset = relative_offset; |
| VISIT(WriteMapMethodVisitor<MappingTableDataAccess>); |
| size_mapping_table_ = relative_offset - mapping_tables_offset; |
| |
| size_t vmap_tables_offset = relative_offset; |
| VISIT(WriteMapMethodVisitor<VmapTableDataAccess>); |
| size_vmap_table_ = relative_offset - vmap_tables_offset; |
| |
| #undef VISIT |
| |
| return relative_offset; |
| } |
| |
| size_t OatWriter::WriteCode(OutputStream* out, const size_t file_offset, size_t relative_offset) { |
| off_t new_offset = out->Seek(size_executable_offset_alignment_, kSeekCurrent); |
| relative_offset += size_executable_offset_alignment_; |
| DCHECK_EQ(relative_offset, oat_header_->GetExecutableOffset()); |
| size_t expected_file_offset = file_offset + relative_offset; |
| if (static_cast<uint32_t>(new_offset) != expected_file_offset) { |
| PLOG(ERROR) << "Failed to seek to oat code section. Actual: " << new_offset |
| << " Expected: " << expected_file_offset << " File: " << out->GetLocation(); |
| return 0; |
| } |
| DCHECK_OFFSET(); |
| if (compiler_driver_->IsImage()) { |
| InstructionSet instruction_set = compiler_driver_->GetInstructionSet(); |
| |
| #define DO_TRAMPOLINE(field) \ |
| do { \ |
| uint32_t aligned_offset = CompiledCode::AlignCode(relative_offset, instruction_set); \ |
| uint32_t alignment_padding = aligned_offset - relative_offset; \ |
| out->Seek(alignment_padding, kSeekCurrent); \ |
| size_trampoline_alignment_ += alignment_padding; \ |
| if (!out->WriteFully(&(*field)[0], field->size())) { \ |
| PLOG(ERROR) << "Failed to write " # field " to " << out->GetLocation(); \ |
| return false; \ |
| } \ |
| size_ ## field += field->size(); \ |
| relative_offset += alignment_padding + field->size(); \ |
| DCHECK_OFFSET(); \ |
| } while (false) |
| |
| DO_TRAMPOLINE(interpreter_to_interpreter_bridge_); |
| DO_TRAMPOLINE(interpreter_to_compiled_code_bridge_); |
| DO_TRAMPOLINE(jni_dlsym_lookup_); |
| DO_TRAMPOLINE(portable_imt_conflict_trampoline_); |
| DO_TRAMPOLINE(portable_resolution_trampoline_); |
| DO_TRAMPOLINE(portable_to_interpreter_bridge_); |
| DO_TRAMPOLINE(quick_generic_jni_trampoline_); |
| DO_TRAMPOLINE(quick_imt_conflict_trampoline_); |
| DO_TRAMPOLINE(quick_resolution_trampoline_); |
| DO_TRAMPOLINE(quick_to_interpreter_bridge_); |
| #undef DO_TRAMPOLINE |
| } |
| return relative_offset; |
| } |
| |
| size_t OatWriter::WriteCodeDexFiles(OutputStream* out, |
| const size_t file_offset, |
| size_t relative_offset) { |
| #define VISIT(VisitorType) \ |
| do { \ |
| VisitorType visitor(this, out, file_offset, relative_offset); \ |
| if (UNLIKELY(!VisitDexMethods(&visitor))) { \ |
| return 0; \ |
| } \ |
| relative_offset = visitor.GetOffset(); \ |
| } while (false) |
| |
| VISIT(WriteCodeMethodVisitor); |
| |
| #undef VISIT |
| |
| return relative_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 size_t file_offset) 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, |
| const std::vector<CompiledMethod*>& compiled_methods, |
| uint32_t num_non_null_compiled_methods, |
| mirror::Class::Status status) |
| : compiled_methods_(compiled_methods) { |
| uint32_t num_methods = compiled_methods.size(); |
| CHECK_LE(num_non_null_compiled_methods, num_methods); |
| |
| offset_ = offset; |
| oat_method_offsets_offsets_from_oat_class_.resize(num_methods); |
| |
| // Since both kOatClassNoneCompiled and kOatClassAllCompiled could |
| // apply when there are 0 methods, we just arbitrarily say that 0 |
| // methods means kOatClassNoneCompiled and that we won't use |
| // kOatClassAllCompiled unless there is at least one compiled |
| // method. This means in an interpretter only system, we can assert |
| // that all classes are kOatClassNoneCompiled. |
| if (num_non_null_compiled_methods == 0) { |
| type_ = kOatClassNoneCompiled; |
| } else if (num_non_null_compiled_methods == num_methods) { |
| type_ = kOatClassAllCompiled; |
| } else { |
| type_ = kOatClassSomeCompiled; |
| } |
| |
| status_ = status; |
| method_offsets_.resize(num_non_null_compiled_methods); |
| method_headers_.resize(num_non_null_compiled_methods); |
| |
| uint32_t oat_method_offsets_offset_from_oat_class = sizeof(type_) + sizeof(status_); |
| if (type_ == kOatClassSomeCompiled) { |
| method_bitmap_ = new BitVector(num_methods, false, Allocator::GetMallocAllocator()); |
| method_bitmap_size_ = method_bitmap_->GetSizeOf(); |
| oat_method_offsets_offset_from_oat_class += sizeof(method_bitmap_size_); |
| oat_method_offsets_offset_from_oat_class += method_bitmap_size_; |
| } else { |
| method_bitmap_ = NULL; |
| method_bitmap_size_ = 0; |
| } |
| |
| for (size_t i = 0; i < num_methods; i++) { |
| CompiledMethod* compiled_method = compiled_methods_[i]; |
| if (compiled_method == NULL) { |
| oat_method_offsets_offsets_from_oat_class_[i] = 0; |
| } else { |
| oat_method_offsets_offsets_from_oat_class_[i] = oat_method_offsets_offset_from_oat_class; |
| oat_method_offsets_offset_from_oat_class += sizeof(OatMethodOffsets); |
| if (type_ == kOatClassSomeCompiled) { |
| method_bitmap_->SetBit(i); |
| } |
| } |
| } |
| } |
| |
| OatWriter::OatClass::~OatClass() { |
| delete method_bitmap_; |
| } |
| |
| size_t OatWriter::OatClass::GetOatMethodOffsetsOffsetFromOatHeader( |
| size_t class_def_method_index_) const { |
| uint32_t method_offset = GetOatMethodOffsetsOffsetFromOatClass(class_def_method_index_); |
| if (method_offset == 0) { |
| return 0; |
| } |
| return offset_ + method_offset; |
| } |
| |
| size_t OatWriter::OatClass::GetOatMethodOffsetsOffsetFromOatClass( |
| size_t class_def_method_index_) const { |
| return oat_method_offsets_offsets_from_oat_class_[class_def_method_index_]; |
| } |
| |
| size_t OatWriter::OatClass::SizeOf() const { |
| return sizeof(status_) |
| + sizeof(type_) |
| + ((method_bitmap_size_ == 0) ? 0 : sizeof(method_bitmap_size_)) |
| + method_bitmap_size_ |
| + (sizeof(method_offsets_[0]) * method_offsets_.size()); |
| } |
| |
| void OatWriter::OatClass::UpdateChecksum(OatHeader* oat_header) const { |
| oat_header->UpdateChecksum(&status_, sizeof(status_)); |
| oat_header->UpdateChecksum(&type_, sizeof(type_)); |
| if (method_bitmap_size_ != 0) { |
| CHECK_EQ(kOatClassSomeCompiled, type_); |
| oat_header->UpdateChecksum(&method_bitmap_size_, sizeof(method_bitmap_size_)); |
| oat_header->UpdateChecksum(method_bitmap_->GetRawStorage(), method_bitmap_size_); |
| } |
| oat_header->UpdateChecksum(&method_offsets_[0], |
| sizeof(method_offsets_[0]) * method_offsets_.size()); |
| } |
| |
| bool OatWriter::OatClass::Write(OatWriter* oat_writer, |
| OutputStream* out, |
| const size_t file_offset) 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_); |
| if (!out->WriteFully(&type_, sizeof(type_))) { |
| PLOG(ERROR) << "Failed to write oat class type to " << out->GetLocation(); |
| return false; |
| } |
| oat_writer->size_oat_class_type_ += sizeof(type_); |
| if (method_bitmap_size_ != 0) { |
| CHECK_EQ(kOatClassSomeCompiled, type_); |
| if (!out->WriteFully(&method_bitmap_size_, sizeof(method_bitmap_size_))) { |
| PLOG(ERROR) << "Failed to write method bitmap size to " << out->GetLocation(); |
| return false; |
| } |
| oat_writer->size_oat_class_method_bitmaps_ += sizeof(method_bitmap_size_); |
| if (!out->WriteFully(method_bitmap_->GetRawStorage(), method_bitmap_size_)) { |
| PLOG(ERROR) << "Failed to write method bitmap to " << out->GetLocation(); |
| return false; |
| } |
| oat_writer->size_oat_class_method_bitmaps_ += method_bitmap_size_; |
| } |
| 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(); |
| return true; |
| } |
| |
| } // namespace art |
