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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>
#include "android-base/stringprintf.h"
#include "arch/instruction_set.h"
#include "arch/instruction_set_features.h"
#include "base/runtime_debug.h"
#include "base/variant_map.h"
#include "cmdline_parser.h"
#include "compiler_options_map-inl.h"
#include "runtime.h"
#include "simple_compiler_options_map.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),
instruction_set_(kRuntimeISA == InstructionSet::kArm ? InstructionSet::kThumb2 : kRuntimeISA),
instruction_set_features_(nullptr),
no_inline_from_(),
dex_files_for_oat_file_(),
image_classes_(),
boot_image_(false),
core_image_(false),
app_image_(false),
baseline_(false),
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),
dump_timings_(false),
dump_pass_timings_(false),
dump_stats_(false),
top_k_profile_threshold_(kDefaultTopKProfileThreshold),
verbose_methods_(),
abort_on_hard_verifier_failure_(false),
abort_on_soft_verifier_failure_(false),
init_failure_output_(nullptr),
dump_cfg_file_name_(""),
dump_cfg_append_(false),
force_determinism_(false),
deduplicate_code_(true),
count_hotness_in_compiled_code_(false),
register_allocation_strategy_(RegisterAllocator::kRegisterAllocatorDefault),
passes_to_run_(nullptr) {
}
CompilerOptions::~CompilerOptions() {
// Everything done by member destructors.
// The definitions of classes forward-declared in the header have now been #included.
}
namespace {
bool kEmitRuntimeReadBarrierChecks = kIsDebugBuild &&
RegisterRuntimeDebugFlag(&kEmitRuntimeReadBarrierChecks);
} // namespace
bool CompilerOptions::EmitRunTimeChecksInDebugMode() const {
// Run-time checks (e.g. Marking Register checks) are only emitted in slow-debug mode.
return kEmitRuntimeReadBarrierChecks;
}
bool CompilerOptions::ParseDumpInitFailures(const std::string& option, std::string* error_msg) {
init_failure_output_.reset(new std::ofstream(option));
if (init_failure_output_.get() == nullptr) {
*error_msg = "Failed to construct std::ofstream";
return false;
} else if (init_failure_output_->fail()) {
*error_msg = android::base::StringPrintf(
"Failed to open %s for writing the initialization failures.", option.c_str());
init_failure_output_.reset();
return false;
}
return true;
}
bool CompilerOptions::ParseRegisterAllocationStrategy(const std::string& option,
std::string* error_msg) {
if (option == "linear-scan") {
register_allocation_strategy_ = RegisterAllocator::Strategy::kRegisterAllocatorLinearScan;
} else if (option == "graph-color") {
register_allocation_strategy_ = RegisterAllocator::Strategy::kRegisterAllocatorGraphColor;
} else {
*error_msg = "Unrecognized register allocation strategy. Try linear-scan, or graph-color.";
return false;
}
return true;
}
bool CompilerOptions::ParseCompilerOptions(const std::vector<std::string>& options,
bool ignore_unrecognized,
std::string* error_msg) {
auto parser = CreateSimpleParser(ignore_unrecognized);
CmdlineResult parse_result = parser.Parse(options);
if (!parse_result.IsSuccess()) {
*error_msg = parse_result.GetMessage();
return false;
}
SimpleParseArgumentMap args = parser.ReleaseArgumentsMap();
return ReadCompilerOptions(args, this, error_msg);
}
bool CompilerOptions::IsImageClass(const char* descriptor) const {
// Historical note: We used to hold the set indirectly and there was a distinction between an
// empty set and a null, null meaning to include all classes. However, the distiction has been
// removed; if we don't have a profile, we treat it as an empty set of classes. b/77340429
return image_classes_.find(StringPiece(descriptor)) != image_classes_.end();
}
} // namespace art
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