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
CompilerOptions()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
~CompilerOptions()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
ParseHugeMethodMax(const StringPiece & option,UsageFn Usage)58 void CompilerOptions::ParseHugeMethodMax(const StringPiece& option, UsageFn Usage) {
59 ParseUintOption(option, "--huge-method-max", &huge_method_threshold_, Usage);
60 }
61
ParseLargeMethodMax(const StringPiece & option,UsageFn Usage)62 void CompilerOptions::ParseLargeMethodMax(const StringPiece& option, UsageFn Usage) {
63 ParseUintOption(option, "--large-method-max", &large_method_threshold_, Usage);
64 }
65
ParseSmallMethodMax(const StringPiece & option,UsageFn Usage)66 void CompilerOptions::ParseSmallMethodMax(const StringPiece& option, UsageFn Usage) {
67 ParseUintOption(option, "--small-method-max", &small_method_threshold_, Usage);
68 }
69
ParseTinyMethodMax(const StringPiece & option,UsageFn Usage)70 void CompilerOptions::ParseTinyMethodMax(const StringPiece& option, UsageFn Usage) {
71 ParseUintOption(option, "--tiny-method-max", &tiny_method_threshold_, Usage);
72 }
73
ParseNumDexMethods(const StringPiece & option,UsageFn Usage)74 void CompilerOptions::ParseNumDexMethods(const StringPiece& option, UsageFn Usage) {
75 ParseUintOption(option, "--num-dex-methods", &num_dex_methods_threshold_, Usage);
76 }
77
ParseInlineMaxCodeUnits(const StringPiece & option,UsageFn Usage)78 void CompilerOptions::ParseInlineMaxCodeUnits(const StringPiece& option, UsageFn Usage) {
79 ParseUintOption(option, "--inline-max-code-units", &inline_max_code_units_, Usage);
80 }
81
ParseDumpInitFailures(const StringPiece & option,UsageFn Usage ATTRIBUTE_UNUSED)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
ParseRegisterAllocationStrategy(const StringPiece & option,UsageFn Usage)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
ParseCompilerOption(const StringPiece & option,UsageFn Usage)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