| /* |
| * Copyright (C) 2014 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 "compiler_backend.h" |
| #include "elf_writer_quick.h" |
| #include "dex/quick/mir_to_lir.h" |
| #include "dex/mir_graph.h" |
| #include "driver/compiler_driver.h" |
| #include "mirror/art_method-inl.h" |
| |
| #ifdef ART_USE_PORTABLE_COMPILER |
| #include "dex/portable/mir_to_gbc.h" |
| #include "elf_writer_mclinker.h" |
| #endif |
| |
| namespace art { |
| |
| #ifdef ART_SEA_IR_MODE |
| extern "C" art::CompiledMethod* SeaIrCompileMethod(art::CompilerDriver& compiler, |
| const art::DexFile::CodeItem* code_item, |
| uint32_t access_flags, |
| art::InvokeType invoke_type, |
| uint16_t class_def_idx, |
| uint32_t method_idx, |
| jobject class_loader, |
| const art::DexFile& dex_file); |
| #endif |
| |
| extern "C" void ArtInitQuickCompilerContext(art::CompilerDriver& driver); |
| extern "C" void ArtUnInitQuickCompilerContext(art::CompilerDriver& driver); |
| extern "C" art::CompiledMethod* ArtQuickCompileMethod(art::CompilerDriver& compiler, |
| const art::DexFile::CodeItem* code_item, |
| uint32_t access_flags, |
| art::InvokeType invoke_type, |
| uint16_t class_def_idx, |
| uint32_t method_idx, |
| jobject class_loader, |
| const art::DexFile& dex_file); |
| |
| extern "C" art::CompiledMethod* ArtQuickJniCompileMethod(art::CompilerDriver& compiler, |
| uint32_t access_flags, uint32_t method_idx, |
| const art::DexFile& dex_file); |
| |
| |
| static CompiledMethod* TryCompileWithSeaIR(art::CompilerDriver& compiler, |
| const art::DexFile::CodeItem* code_item, |
| uint32_t access_flags, |
| art::InvokeType invoke_type, |
| uint16_t class_def_idx, |
| uint32_t method_idx, |
| jobject class_loader, |
| const art::DexFile& dex_file) { |
| #ifdef ART_SEA_IR_MODE |
| bool use_sea = Runtime::Current()->IsSeaIRMode(); |
| use_sea = use_sea && |
| (std::string::npos != PrettyMethod(method_idx, dex_file).find("fibonacci")); |
| if (use_sea) { |
| LOG(INFO) << "Using SEA IR to compile..." << std::endl; |
| return SeaIrCompileMethod(compiler, |
| code_item, |
| access_flags, |
| invoke_type, |
| class_def_idx, |
| method_idx, |
| class_loader, |
| dex_file); |
| } |
| #endif |
| return nullptr; |
| } |
| |
| |
| // Hack for CFI CIE initialization |
| extern std::vector<uint8_t>* X86CFIInitialization(); |
| |
| class QuickBackend : public CompilerBackend { |
| public: |
| QuickBackend() : CompilerBackend(100) {} |
| |
| void Init(CompilerDriver& driver) const { |
| ArtInitQuickCompilerContext(driver); |
| } |
| |
| void UnInit(CompilerDriver& driver) const { |
| ArtUnInitQuickCompilerContext(driver); |
| } |
| |
| CompiledMethod* Compile(CompilerDriver& compiler, |
| const DexFile::CodeItem* code_item, |
| uint32_t access_flags, |
| InvokeType invoke_type, |
| uint16_t class_def_idx, |
| uint32_t method_idx, |
| jobject class_loader, |
| const DexFile& dex_file) const { |
| CompiledMethod* method = TryCompileWithSeaIR(compiler, |
| code_item, |
| access_flags, |
| invoke_type, |
| class_def_idx, |
| method_idx, |
| class_loader, |
| dex_file); |
| if (method != nullptr) return method; |
| |
| return ArtQuickCompileMethod(compiler, |
| code_item, |
| access_flags, |
| invoke_type, |
| class_def_idx, |
| method_idx, |
| class_loader, |
| dex_file); |
| } |
| |
| CompiledMethod* JniCompile(CompilerDriver& driver, |
| uint32_t access_flags, |
| uint32_t method_idx, |
| const DexFile& dex_file) const { |
| return ArtQuickJniCompileMethod(driver, access_flags, method_idx, dex_file); |
| } |
| |
| uintptr_t GetEntryPointOf(mirror::ArtMethod* method) const { |
| return reinterpret_cast<uintptr_t>(method->GetEntryPointFromQuickCompiledCode()); |
| } |
| |
| bool WriteElf(art::File* file, |
| OatWriter* oat_writer, |
| const std::vector<const art::DexFile*>& dex_files, |
| const std::string& android_root, |
| bool is_host, const CompilerDriver& driver) const |
| OVERRIDE |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| return art::ElfWriterQuick::Create(file, oat_writer, dex_files, android_root, is_host, driver); |
| } |
| |
| Backend* GetCodeGenerator(CompilationUnit* cu, void* compilation_unit) const { |
| Mir2Lir* mir_to_lir = nullptr; |
| switch (cu->instruction_set) { |
| case kThumb2: |
| mir_to_lir = ArmCodeGenerator(cu, cu->mir_graph.get(), &cu->arena); |
| break; |
| case kMips: |
| mir_to_lir = MipsCodeGenerator(cu, cu->mir_graph.get(), &cu->arena); |
| break; |
| case kX86: |
| mir_to_lir = X86CodeGenerator(cu, cu->mir_graph.get(), &cu->arena); |
| break; |
| default: |
| LOG(FATAL) << "Unexpected instruction set: " << cu->instruction_set; |
| } |
| |
| /* The number of compiler temporaries depends on backend so set it up now if possible */ |
| if (mir_to_lir) { |
| size_t max_temps = mir_to_lir->GetMaxPossibleCompilerTemps(); |
| bool set_max = cu->mir_graph->SetMaxAvailableNonSpecialCompilerTemps(max_temps); |
| CHECK(set_max); |
| } |
| return mir_to_lir; |
| } |
| |
| void InitCompilationUnit(CompilationUnit& cu) const {} |
| |
| /* |
| * @brief Generate and return Dwarf CFI initialization, if supported by the |
| * backend. |
| * @param driver CompilerDriver for this compile. |
| * @returns nullptr if not supported by backend or a vector of bytes for CFI DWARF |
| * information. |
| * @note This is used for backtrace information in generated code. |
| */ |
| std::vector<uint8_t>* GetCallFrameInformationInitialization(const CompilerDriver& driver) const |
| OVERRIDE { |
| if (driver.GetInstructionSet() == kX86) { |
| return X86CFIInitialization(); |
| } |
| return nullptr; |
| } |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(QuickBackend); |
| }; |
| |
| #ifdef ART_USE_PORTABLE_COMPILER |
| |
| extern "C" void ArtInitCompilerContext(art::CompilerDriver& driver); |
| |
| extern "C" void ArtUnInitCompilerContext(art::CompilerDriver& driver); |
| |
| extern "C" art::CompiledMethod* ArtCompileMethod(art::CompilerDriver& driver, |
| const art::DexFile::CodeItem* code_item, |
| uint32_t access_flags, |
| art::InvokeType invoke_type, |
| uint16_t class_def_idx, |
| uint32_t method_idx, |
| jobject class_loader, |
| const art::DexFile& dex_file); |
| |
| extern "C" art::CompiledMethod* ArtLLVMJniCompileMethod(art::CompilerDriver& driver, |
| uint32_t access_flags, uint32_t method_idx, |
| const art::DexFile& dex_file); |
| |
| extern "C" void compilerLLVMSetBitcodeFileName(art::CompilerDriver& driver, |
| std::string const& filename); |
| |
| |
| class LLVMBackend : public CompilerBackend { |
| public: |
| LLVMBackend() : CompilerBackend(1000) {} |
| |
| void Init(CompilerDriver& driver) const { |
| ArtInitCompilerContext(driver); |
| } |
| |
| void UnInit(CompilerDriver& driver) const { |
| ArtUnInitCompilerContext(driver); |
| } |
| |
| CompiledMethod* Compile(CompilerDriver& compiler, |
| const DexFile::CodeItem* code_item, |
| uint32_t access_flags, |
| InvokeType invoke_type, |
| uint16_t class_def_idx, |
| uint32_t method_idx, |
| jobject class_loader, |
| const DexFile& dex_file) const { |
| CompiledMethod* method = TryCompileWithSeaIR(compiler, |
| code_item, |
| access_flags, |
| invoke_type, |
| class_def_idx, |
| method_idx, |
| class_loader, |
| dex_file); |
| if (method != nullptr) return method; |
| |
| return ArtCompileMethod(compiler, |
| code_item, |
| access_flags, |
| invoke_type, |
| class_def_idx, |
| method_idx, |
| class_loader, |
| dex_file); |
| } |
| |
| CompiledMethod* JniCompile(CompilerDriver& driver, |
| uint32_t access_flags, |
| uint32_t method_idx, |
| const DexFile& dex_file) const { |
| return ArtLLVMJniCompileMethod(driver, access_flags, method_idx, dex_file); |
| } |
| |
| uintptr_t GetEntryPointOf(mirror::ArtMethod* method) const { |
| return reinterpret_cast<uintptr_t>(method->GetEntryPointFromPortableCompiledCode()); |
| } |
| |
| bool WriteElf(art::File* file, |
| OatWriter* oat_writer, |
| const std::vector<const art::DexFile*>& dex_files, |
| const std::string& android_root, |
| bool is_host, const CompilerDriver& driver) const |
| OVERRIDE |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| return art::ElfWriterMclinker::Create( |
| file, oat_writer, dex_files, android_root, is_host, driver); |
| } |
| |
| Backend* GetCodeGenerator(CompilationUnit* cu, void* compilation_unit) const { |
| return PortableCodeGenerator( |
| cu, cu->mir_graph.get(), &cu->arena, |
| reinterpret_cast<art::llvm::LlvmCompilationUnit*>(compilation_unit)); |
| } |
| |
| void InitCompilationUnit(CompilationUnit& cu) const { |
| // Fused long branches not currently useful in bitcode. |
| cu.disable_opt |= |
| (1 << kBranchFusing) | |
| (1 << kSuppressExceptionEdges); |
| } |
| |
| bool IsPortable() const OVERRIDE { |
| return true; |
| } |
| |
| void SetBitcodeFileName(const CompilerDriver& driver, const std::string& filename) { |
| typedef void (*SetBitcodeFileNameFn)(const CompilerDriver&, const std::string&); |
| |
| SetBitcodeFileNameFn set_bitcode_file_name = |
| reinterpret_cast<SetBitcodeFileNameFn>(compilerLLVMSetBitcodeFileName); |
| |
| set_bitcode_file_name(driver, filename); |
| } |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(LLVMBackend); |
| }; |
| #endif |
| |
| CompilerBackend* CompilerBackend::Create(CompilerBackend::Kind kind) { |
| switch (kind) { |
| case kQuick: |
| return new QuickBackend(); |
| break; |
| case kPortable: |
| #ifdef ART_USE_PORTABLE_COMPILER |
| return new LLVMBackend(); |
| #else |
| LOG(FATAL) << "Portable compiler not compiled"; |
| #endif |
| break; |
| default: |
| LOG(FATAL) << "UNREACHABLE"; |
| } |
| return nullptr; |
| } |
| |
| } // namespace art |
