1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "compiler_options.h" 18 19 #include <fstream> 20 21 namespace art { 22 23 CompilerOptions::CompilerOptions() 24 : compiler_filter_(CompilerFilter::kDefaultCompilerFilter), 25 huge_method_threshold_(kDefaultHugeMethodThreshold), 26 large_method_threshold_(kDefaultLargeMethodThreshold), 27 small_method_threshold_(kDefaultSmallMethodThreshold), 28 tiny_method_threshold_(kDefaultTinyMethodThreshold), 29 num_dex_methods_threshold_(kDefaultNumDexMethodsThreshold), 30 inline_max_code_units_(kUnsetInlineMaxCodeUnits), 31 no_inline_from_(nullptr), 32 boot_image_(false), 33 app_image_(false), 34 top_k_profile_threshold_(kDefaultTopKProfileThreshold), 35 debuggable_(false), 36 generate_debug_info_(kDefaultGenerateDebugInfo), 37 generate_mini_debug_info_(kDefaultGenerateMiniDebugInfo), 38 generate_build_id_(false), 39 implicit_null_checks_(true), 40 implicit_so_checks_(true), 41 implicit_suspend_checks_(false), 42 compile_pic_(false), 43 verbose_methods_(), 44 abort_on_hard_verifier_failure_(false), 45 init_failure_output_(nullptr), 46 dump_cfg_file_name_(""), 47 dump_cfg_append_(false), 48 force_determinism_(false), 49 register_allocation_strategy_(RegisterAllocator::kRegisterAllocatorDefault), 50 passes_to_run_(nullptr) { 51 } 52 53 CompilerOptions::~CompilerOptions() { 54 // The destructor looks empty but it destroys a PassManagerOptions object. We keep it here 55 // because we don't want to include the PassManagerOptions definition from the header file. 56 } 57 58 void CompilerOptions::ParseHugeMethodMax(const StringPiece& option, UsageFn Usage) { 59 ParseUintOption(option, "--huge-method-max", &huge_method_threshold_, Usage); 60 } 61 62 void CompilerOptions::ParseLargeMethodMax(const StringPiece& option, UsageFn Usage) { 63 ParseUintOption(option, "--large-method-max", &large_method_threshold_, Usage); 64 } 65 66 void CompilerOptions::ParseSmallMethodMax(const StringPiece& option, UsageFn Usage) { 67 ParseUintOption(option, "--small-method-max", &small_method_threshold_, Usage); 68 } 69 70 void CompilerOptions::ParseTinyMethodMax(const StringPiece& option, UsageFn Usage) { 71 ParseUintOption(option, "--tiny-method-max", &tiny_method_threshold_, Usage); 72 } 73 74 void CompilerOptions::ParseNumDexMethods(const StringPiece& option, UsageFn Usage) { 75 ParseUintOption(option, "--num-dex-methods", &num_dex_methods_threshold_, Usage); 76 } 77 78 void CompilerOptions::ParseInlineMaxCodeUnits(const StringPiece& option, UsageFn Usage) { 79 ParseUintOption(option, "--inline-max-code-units", &inline_max_code_units_, Usage); 80 } 81 82 void CompilerOptions::ParseDumpInitFailures(const StringPiece& option, 83 UsageFn Usage ATTRIBUTE_UNUSED) { 84 DCHECK(option.starts_with("--dump-init-failures=")); 85 std::string file_name = option.substr(strlen("--dump-init-failures=")).data(); 86 init_failure_output_.reset(new std::ofstream(file_name)); 87 if (init_failure_output_.get() == nullptr) { 88 LOG(ERROR) << "Failed to allocate ofstream"; 89 } else if (init_failure_output_->fail()) { 90 LOG(ERROR) << "Failed to open " << file_name << " for writing the initialization " 91 << "failures."; 92 init_failure_output_.reset(); 93 } 94 } 95 96 void CompilerOptions::ParseRegisterAllocationStrategy(const StringPiece& option, 97 UsageFn Usage) { 98 DCHECK(option.starts_with("--register-allocation-strategy=")); 99 StringPiece choice = option.substr(strlen("--register-allocation-strategy=")).data(); 100 if (choice == "linear-scan") { 101 register_allocation_strategy_ = RegisterAllocator::Strategy::kRegisterAllocatorLinearScan; 102 } else if (choice == "graph-color") { 103 register_allocation_strategy_ = RegisterAllocator::Strategy::kRegisterAllocatorGraphColor; 104 } else { 105 Usage("Unrecognized register allocation strategy. Try linear-scan, or graph-color."); 106 } 107 } 108 109 bool CompilerOptions::ParseCompilerOption(const StringPiece& option, UsageFn Usage) { 110 if (option.starts_with("--compiler-filter=")) { 111 const char* compiler_filter_string = option.substr(strlen("--compiler-filter=")).data(); 112 if (!CompilerFilter::ParseCompilerFilter(compiler_filter_string, &compiler_filter_)) { 113 Usage("Unknown --compiler-filter value %s", compiler_filter_string); 114 } 115 } else if (option == "--compile-pic") { 116 compile_pic_ = true; 117 } else if (option.starts_with("--huge-method-max=")) { 118 ParseHugeMethodMax(option, Usage); 119 } else if (option.starts_with("--large-method-max=")) { 120 ParseLargeMethodMax(option, Usage); 121 } else if (option.starts_with("--small-method-max=")) { 122 ParseSmallMethodMax(option, Usage); 123 } else if (option.starts_with("--tiny-method-max=")) { 124 ParseTinyMethodMax(option, Usage); 125 } else if (option.starts_with("--num-dex-methods=")) { 126 ParseNumDexMethods(option, Usage); 127 } else if (option.starts_with("--inline-max-code-units=")) { 128 ParseInlineMaxCodeUnits(option, Usage); 129 } else if (option == "--generate-debug-info" || option == "-g") { 130 generate_debug_info_ = true; 131 } else if (option == "--no-generate-debug-info") { 132 generate_debug_info_ = false; 133 } else if (option == "--generate-mini-debug-info") { 134 generate_mini_debug_info_ = true; 135 } else if (option == "--no-generate-mini-debug-info") { 136 generate_mini_debug_info_ = false; 137 } else if (option == "--generate-build-id") { 138 generate_build_id_ = true; 139 } else if (option == "--no-generate-build-id") { 140 generate_build_id_ = false; 141 } else if (option == "--debuggable") { 142 debuggable_ = true; 143 } else if (option.starts_with("--top-k-profile-threshold=")) { 144 ParseDouble(option.data(), '=', 0.0, 100.0, &top_k_profile_threshold_, Usage); 145 } else if (option == "--abort-on-hard-verifier-error") { 146 abort_on_hard_verifier_failure_ = true; 147 } else if (option.starts_with("--dump-init-failures=")) { 148 ParseDumpInitFailures(option, Usage); 149 } else if (option.starts_with("--dump-cfg=")) { 150 dump_cfg_file_name_ = option.substr(strlen("--dump-cfg=")).data(); 151 } else if (option == "--dump-cfg-append") { 152 dump_cfg_append_ = true; 153 } else if (option.starts_with("--register-allocation-strategy=")) { 154 ParseRegisterAllocationStrategy(option, Usage); 155 } else if (option.starts_with("--verbose-methods=")) { 156 // TODO: rather than switch off compiler logging, make all VLOG(compiler) messages 157 // conditional on having verbose methods. 158 gLogVerbosity.compiler = false; 159 Split(option.substr(strlen("--verbose-methods=")).ToString(), ',', &verbose_methods_); 160 } else { 161 // Option not recognized. 162 return false; 163 } 164 return true; 165 } 166 167 } // namespace art 168
