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/*
* 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>
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),
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.
}
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.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
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