| /* |
| * Copyright (C) 2015 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_options.h" |
| |
| #include <fstream> |
| |
| #include "runtime.h" |
| |
| namespace art { |
| |
| CompilerOptions::CompilerOptions() |
| : compiler_filter_(CompilerFilter::kDefaultCompilerFilter), |
| huge_method_threshold_(kDefaultHugeMethodThreshold), |
| large_method_threshold_(kDefaultLargeMethodThreshold), |
| small_method_threshold_(kDefaultSmallMethodThreshold), |
| tiny_method_threshold_(kDefaultTinyMethodThreshold), |
| num_dex_methods_threshold_(kDefaultNumDexMethodsThreshold), |
| inline_max_code_units_(kUnsetInlineMaxCodeUnits), |
| no_inline_from_(nullptr), |
| boot_image_(false), |
| core_image_(false), |
| app_image_(false), |
| top_k_profile_threshold_(kDefaultTopKProfileThreshold), |
| debuggable_(false), |
| generate_debug_info_(kDefaultGenerateDebugInfo), |
| generate_mini_debug_info_(kDefaultGenerateMiniDebugInfo), |
| generate_build_id_(false), |
| implicit_null_checks_(true), |
| implicit_so_checks_(true), |
| implicit_suspend_checks_(false), |
| compile_pic_(false), |
| verbose_methods_(), |
| abort_on_hard_verifier_failure_(false), |
| init_failure_output_(nullptr), |
| dump_cfg_file_name_(""), |
| dump_cfg_append_(false), |
| force_determinism_(false), |
| register_allocation_strategy_(RegisterAllocator::kRegisterAllocatorDefault), |
| passes_to_run_(nullptr) { |
| } |
| |
| CompilerOptions::~CompilerOptions() { |
| // The destructor looks empty but it destroys a PassManagerOptions object. We keep it here |
| // because we don't want to include the PassManagerOptions definition from the header file. |
| } |
| |
| bool CompilerOptions::EmitRunTimeChecksInDebugMode() const { |
| // Run-time checks (e.g. Marking Register checks) are only emitted |
| // in debug mode, and |
| // - when running on device; or |
| // - when running on host, but only |
| // - when compiling the core image (which is used only for testing); or |
| // - when JIT compiling (only relevant for non-native methods). |
| // This is to prevent these checks from being emitted into pre-opted |
| // boot image or apps, as these are compiled with dex2oatd. |
| return kIsDebugBuild && |
| (kIsTargetBuild || IsCoreImage() || Runtime::Current()->UseJitCompilation()); |
| } |
| |
| void CompilerOptions::ParseHugeMethodMax(const StringPiece& option, UsageFn Usage) { |
| ParseUintOption(option, "--huge-method-max", &huge_method_threshold_, Usage); |
| } |
| |
| void CompilerOptions::ParseLargeMethodMax(const StringPiece& option, UsageFn Usage) { |
| ParseUintOption(option, "--large-method-max", &large_method_threshold_, Usage); |
| } |
| |
| void CompilerOptions::ParseSmallMethodMax(const StringPiece& option, UsageFn Usage) { |
| ParseUintOption(option, "--small-method-max", &small_method_threshold_, Usage); |
| } |
| |
| void CompilerOptions::ParseTinyMethodMax(const StringPiece& option, UsageFn Usage) { |
| ParseUintOption(option, "--tiny-method-max", &tiny_method_threshold_, Usage); |
| } |
| |
| void CompilerOptions::ParseNumDexMethods(const StringPiece& option, UsageFn Usage) { |
| ParseUintOption(option, "--num-dex-methods", &num_dex_methods_threshold_, Usage); |
| } |
| |
| void CompilerOptions::ParseInlineMaxCodeUnits(const StringPiece& option, UsageFn Usage) { |
| ParseUintOption(option, "--inline-max-code-units", &inline_max_code_units_, Usage); |
| } |
| |
| void CompilerOptions::ParseDumpInitFailures(const StringPiece& option, |
| UsageFn Usage ATTRIBUTE_UNUSED) { |
| DCHECK(option.starts_with("--dump-init-failures=")); |
| std::string file_name = option.substr(strlen("--dump-init-failures=")).data(); |
| init_failure_output_.reset(new std::ofstream(file_name)); |
| if (init_failure_output_.get() == nullptr) { |
| LOG(ERROR) << "Failed to allocate ofstream"; |
| } else if (init_failure_output_->fail()) { |
| LOG(ERROR) << "Failed to open " << file_name << " for writing the initialization " |
| << "failures."; |
| init_failure_output_.reset(); |
| } |
| } |
| |
| void CompilerOptions::ParseRegisterAllocationStrategy(const StringPiece& option, |
| UsageFn Usage) { |
| DCHECK(option.starts_with("--register-allocation-strategy=")); |
| StringPiece choice = option.substr(strlen("--register-allocation-strategy=")).data(); |
| if (choice == "linear-scan") { |
| register_allocation_strategy_ = RegisterAllocator::Strategy::kRegisterAllocatorLinearScan; |
| } else if (choice == "graph-color") { |
| register_allocation_strategy_ = RegisterAllocator::Strategy::kRegisterAllocatorGraphColor; |
| } else { |
| Usage("Unrecognized register allocation strategy. Try linear-scan, or graph-color."); |
| } |
| } |
| |
| bool CompilerOptions::ParseCompilerOption(const StringPiece& option, UsageFn Usage) { |
| if (option.starts_with("--compiler-filter=")) { |
| const char* compiler_filter_string = option.substr(strlen("--compiler-filter=")).data(); |
| if (!CompilerFilter::ParseCompilerFilter(compiler_filter_string, &compiler_filter_)) { |
| Usage("Unknown --compiler-filter value %s", compiler_filter_string); |
| } |
| } else if (option == "--compile-pic") { |
| compile_pic_ = true; |
| } else if (option.starts_with("--huge-method-max=")) { |
| ParseHugeMethodMax(option, Usage); |
| } else if (option.starts_with("--large-method-max=")) { |
| ParseLargeMethodMax(option, Usage); |
| } else if (option.starts_with("--small-method-max=")) { |
| ParseSmallMethodMax(option, Usage); |
| } else if (option.starts_with("--tiny-method-max=")) { |
| ParseTinyMethodMax(option, Usage); |
| } else if (option.starts_with("--num-dex-methods=")) { |
| ParseNumDexMethods(option, Usage); |
| } else if (option.starts_with("--inline-max-code-units=")) { |
| ParseInlineMaxCodeUnits(option, Usage); |
| } else if (option == "--generate-debug-info" || option == "-g") { |
| generate_debug_info_ = true; |
| } else if (option == "--no-generate-debug-info") { |
| generate_debug_info_ = false; |
| } else if (option == "--generate-mini-debug-info") { |
| generate_mini_debug_info_ = true; |
| } else if (option == "--no-generate-mini-debug-info") { |
| generate_mini_debug_info_ = false; |
| } else if (option == "--generate-build-id") { |
| generate_build_id_ = true; |
| } else if (option == "--no-generate-build-id") { |
| generate_build_id_ = false; |
| } else if (option == "--debuggable") { |
| debuggable_ = true; |
| } else if (option.starts_with("--top-k-profile-threshold=")) { |
| ParseDouble(option.data(), '=', 0.0, 100.0, &top_k_profile_threshold_, Usage); |
| } else if (option == "--abort-on-hard-verifier-error") { |
| abort_on_hard_verifier_failure_ = true; |
| } else if (option == "--no-abort-on-hard-verifier-error") { |
| abort_on_hard_verifier_failure_ = false; |
| } else if (option.starts_with("--dump-init-failures=")) { |
| ParseDumpInitFailures(option, Usage); |
| } else if (option.starts_with("--dump-cfg=")) { |
| dump_cfg_file_name_ = option.substr(strlen("--dump-cfg=")).data(); |
| } else if (option == "--dump-cfg-append") { |
| dump_cfg_append_ = true; |
| } else if (option.starts_with("--register-allocation-strategy=")) { |
| ParseRegisterAllocationStrategy(option, Usage); |
| } else if (option.starts_with("--verbose-methods=")) { |
| // TODO: rather than switch off compiler logging, make all VLOG(compiler) messages |
| // conditional on having verbose methods. |
| gLogVerbosity.compiler = false; |
| Split(option.substr(strlen("--verbose-methods=")).ToString(), ',', &verbose_methods_); |
| } else { |
| // Option not recognized. |
| return false; |
| } |
| return true; |
| } |
| |
| } // namespace art |