You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
213 lines
8.1 KiB
213 lines
8.1 KiB
4 months ago
|
/*
|
||
|
|
* Copyright 2014 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 "jit_compiler.h"
|
||
|
|
|
||
|
|
#include "android-base/stringprintf.h"
|
||
|
|
|
||
|
|
#include "arch/instruction_set.h"
|
||
|
|
#include "arch/instruction_set_features.h"
|
||
|
|
#include "art_method-inl.h"
|
||
|
|
#include "base/logging.h" // For VLOG
|
||
|
|
#include "base/string_view_cpp20.h"
|
||
|
|
#include "base/systrace.h"
|
||
|
|
#include "base/time_utils.h"
|
||
|
|
#include "base/timing_logger.h"
|
||
|
|
#include "compiler.h"
|
||
|
|
#include "debug/elf_debug_writer.h"
|
||
|
|
#include "driver/compiler_options.h"
|
||
|
|
#include "jit/debugger_interface.h"
|
||
|
|
#include "jit/jit.h"
|
||
|
|
#include "jit/jit_code_cache.h"
|
||
|
|
#include "jit/jit_logger.h"
|
||
|
|
|
||
|
|
namespace art {
|
||
|
|
namespace jit {
|
||
|
|
|
||
|
|
JitCompiler* JitCompiler::Create() {
|
||
|
|
return new JitCompiler();
|
||
|
|
}
|
||
|
|
|
||
|
|
void JitCompiler::ParseCompilerOptions() {
|
||
|
|
// Special case max code units for inlining, whose default is "unset" (implictly
|
||
|
|
// meaning no limit). Do this before parsing the actual passed options.
|
||
|
|
compiler_options_->SetInlineMaxCodeUnits(CompilerOptions::kDefaultInlineMaxCodeUnits);
|
||
|
|
Runtime* runtime = Runtime::Current();
|
||
|
|
{
|
||
|
|
std::string error_msg;
|
||
|
|
if (!compiler_options_->ParseCompilerOptions(runtime->GetCompilerOptions(),
|
||
|
|
/*ignore_unrecognized=*/ true,
|
||
|
|
&error_msg)) {
|
||
|
|
LOG(FATAL) << error_msg;
|
||
|
|
UNREACHABLE();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Set to appropriate JIT compiler type.
|
||
|
|
compiler_options_->compiler_type_ = runtime->IsZygote()
|
||
|
|
? CompilerOptions::CompilerType::kSharedCodeJitCompiler
|
||
|
|
: CompilerOptions::CompilerType::kJitCompiler;
|
||
|
|
// JIT is never PIC, no matter what the runtime compiler options specify.
|
||
|
|
compiler_options_->SetNonPic();
|
||
|
|
|
||
|
|
// If the options don't provide whether we generate debuggable code, set
|
||
|
|
// debuggability based on the runtime value.
|
||
|
|
if (!compiler_options_->GetDebuggable()) {
|
||
|
|
compiler_options_->SetDebuggable(runtime->IsJavaDebuggable());
|
||
|
|
}
|
||
|
|
|
||
|
|
const InstructionSet instruction_set = compiler_options_->GetInstructionSet();
|
||
|
|
if (kRuntimeISA == InstructionSet::kArm) {
|
||
|
|
DCHECK_EQ(instruction_set, InstructionSet::kThumb2);
|
||
|
|
} else {
|
||
|
|
DCHECK_EQ(instruction_set, kRuntimeISA);
|
||
|
|
}
|
||
|
|
std::unique_ptr<const InstructionSetFeatures> instruction_set_features;
|
||
|
|
for (const std::string& option : runtime->GetCompilerOptions()) {
|
||
|
|
VLOG(compiler) << "JIT compiler option " << option;
|
||
|
|
std::string error_msg;
|
||
|
|
if (StartsWith(option, "--instruction-set-variant=")) {
|
||
|
|
const char* str = option.c_str() + strlen("--instruction-set-variant=");
|
||
|
|
VLOG(compiler) << "JIT instruction set variant " << str;
|
||
|
|
instruction_set_features = InstructionSetFeatures::FromVariant(
|
||
|
|
instruction_set, str, &error_msg);
|
||
|
|
if (instruction_set_features == nullptr) {
|
||
|
|
LOG(WARNING) << "Error parsing " << option << " message=" << error_msg;
|
||
|
|
}
|
||
|
|
} else if (StartsWith(option, "--instruction-set-features=")) {
|
||
|
|
const char* str = option.c_str() + strlen("--instruction-set-features=");
|
||
|
|
VLOG(compiler) << "JIT instruction set features " << str;
|
||
|
|
if (instruction_set_features == nullptr) {
|
||
|
|
instruction_set_features = InstructionSetFeatures::FromVariant(
|
||
|
|
instruction_set, "default", &error_msg);
|
||
|
|
if (instruction_set_features == nullptr) {
|
||
|
|
LOG(WARNING) << "Error parsing " << option << " message=" << error_msg;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
instruction_set_features =
|
||
|
|
instruction_set_features->AddFeaturesFromString(str, &error_msg);
|
||
|
|
if (instruction_set_features == nullptr) {
|
||
|
|
LOG(WARNING) << "Error parsing " << option << " message=" << error_msg;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (instruction_set_features == nullptr) {
|
||
|
|
// '--instruction-set-features/--instruction-set-variant' were not used.
|
||
|
|
// Use build-time defined features.
|
||
|
|
instruction_set_features = InstructionSetFeatures::FromCppDefines();
|
||
|
|
}
|
||
|
|
compiler_options_->instruction_set_features_ = std::move(instruction_set_features);
|
||
|
|
|
||
|
|
if (compiler_options_->GetGenerateDebugInfo()) {
|
||
|
|
jit_logger_.reset(new JitLogger());
|
||
|
|
jit_logger_->OpenLog();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
extern "C" JitCompilerInterface* jit_load() {
|
||
|
|
VLOG(jit) << "Create jit compiler";
|
||
|
|
auto* const jit_compiler = JitCompiler::Create();
|
||
|
|
CHECK(jit_compiler != nullptr);
|
||
|
|
VLOG(jit) << "Done creating jit compiler";
|
||
|
|
return jit_compiler;
|
||
|
|
}
|
||
|
|
|
||
|
|
void JitCompiler::TypesLoaded(mirror::Class** types, size_t count) {
|
||
|
|
const CompilerOptions& compiler_options = GetCompilerOptions();
|
||
|
|
if (compiler_options.GetGenerateDebugInfo()) {
|
||
|
|
InstructionSet isa = compiler_options.GetInstructionSet();
|
||
|
|
const InstructionSetFeatures* features = compiler_options.GetInstructionSetFeatures();
|
||
|
|
const ArrayRef<mirror::Class*> types_array(types, count);
|
||
|
|
std::vector<uint8_t> elf_file =
|
||
|
|
debug::WriteDebugElfFileForClasses(isa, features, types_array);
|
||
|
|
|
||
|
|
// NB: Don't allow packing since it would remove non-backtrace data.
|
||
|
|
MutexLock mu(Thread::Current(), *Locks::jit_lock_);
|
||
|
|
AddNativeDebugInfoForJit(/*code_ptr=*/ nullptr, elf_file, /*allow_packing=*/ false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
bool JitCompiler::GenerateDebugInfo() {
|
||
|
|
return GetCompilerOptions().GetGenerateDebugInfo();
|
||
|
|
}
|
||
|
|
|
||
|
|
std::vector<uint8_t> JitCompiler::PackElfFileForJIT(ArrayRef<const JITCodeEntry*> elf_files,
|
||
|
|
ArrayRef<const void*> removed_symbols,
|
||
|
|
bool compress,
|
||
|
|
/*out*/ size_t* num_symbols) {
|
||
|
|
return debug::PackElfFileForJIT(elf_files, removed_symbols, compress, num_symbols);
|
||
|
|
}
|
||
|
|
|
||
|
|
JitCompiler::JitCompiler() {
|
||
|
|
compiler_options_.reset(new CompilerOptions());
|
||
|
|
ParseCompilerOptions();
|
||
|
|
compiler_.reset(
|
||
|
|
Compiler::Create(*compiler_options_, /*storage=*/ nullptr, Compiler::kOptimizing));
|
||
|
|
}
|
||
|
|
|
||
|
|
JitCompiler::~JitCompiler() {
|
||
|
|
if (compiler_options_->GetGenerateDebugInfo()) {
|
||
|
|
jit_logger_->CloseLog();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
bool JitCompiler::CompileMethod(
|
||
|
|
Thread* self, JitMemoryRegion* region, ArtMethod* method, CompilationKind compilation_kind) {
|
||
|
|
SCOPED_TRACE << "JIT compiling "
|
||
|
|
<< method->PrettyMethod()
|
||
|
|
<< " (kind=" << compilation_kind << ")";
|
||
|
|
|
||
|
|
DCHECK(!method->IsProxyMethod());
|
||
|
|
DCHECK(method->GetDeclaringClass()->IsResolved());
|
||
|
|
|
||
|
|
TimingLogger logger(
|
||
|
|
"JIT compiler timing logger", true, VLOG_IS_ON(jit), TimingLogger::TimingKind::kThreadCpu);
|
||
|
|
self->AssertNoPendingException();
|
||
|
|
Runtime* runtime = Runtime::Current();
|
||
|
|
|
||
|
|
// Do the compilation.
|
||
|
|
bool success = false;
|
||
|
|
{
|
||
|
|
TimingLogger::ScopedTiming t2(compilation_kind == CompilationKind::kOsr
|
||
|
|
? "Compiling OSR"
|
||
|
|
: compilation_kind == CompilationKind::kOptimized
|
||
|
|
? "Compiling optimized"
|
||
|
|
: "Compiling baseline",
|
||
|
|
&logger);
|
||
|
|
JitCodeCache* const code_cache = runtime->GetJit()->GetCodeCache();
|
||
|
|
metrics::AutoTimer timer{runtime->GetMetrics()->JitMethodCompileTotalTime()};
|
||
|
|
success = compiler_->JitCompile(
|
||
|
|
self, code_cache, region, method, compilation_kind, jit_logger_.get());
|
||
|
|
uint64_t duration_us = timer.Stop();
|
||
|
|
VLOG(jit) << "Compilation of " << method->PrettyMethod() << " took "
|
||
|
|
<< PrettyDuration(UsToNs(duration_us));
|
||
|
|
runtime->GetMetrics()->JitMethodCompileCount()->AddOne();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Trim maps to reduce memory usage.
|
||
|
|
// TODO: move this to an idle phase.
|
||
|
|
{
|
||
|
|
TimingLogger::ScopedTiming t2("TrimMaps", &logger);
|
||
|
|
runtime->GetJitArenaPool()->TrimMaps();
|
||
|
|
}
|
||
|
|
|
||
|
|
runtime->GetJit()->AddTimingLogger(logger);
|
||
|
|
return success;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace jit
|
||
|
|
} // namespace art
|