/*
* Copyright (C) 2011 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 "parsed_options.h"
#include <sstream>
#include "base/stringpiece.h"
#include "debugger.h"
#include "gc/heap.h"
#include "monitor.h"
#include "runtime.h"
#include "trace.h"
#include "utils.h"
#include "cmdline_parser.h"
#include "runtime_options.h"
namespace art {
using MemoryKiB = Memory<1024>;
ParsedOptions::ParsedOptions()
: hook_is_sensitive_thread_(nullptr),
hook_vfprintf_(vfprintf),
hook_exit_(exit),
hook_abort_(nullptr) { // We don't call abort(3) by default; see
// Runtime::Abort
}
ParsedOptions* ParsedOptions::Create(const RuntimeOptions& options, bool ignore_unrecognized,
RuntimeArgumentMap* runtime_options) {
CHECK(runtime_options != nullptr);
std::unique_ptr<ParsedOptions> parsed(new ParsedOptions());
if (parsed->Parse(options, ignore_unrecognized, runtime_options)) {
return parsed.release();
}
return nullptr;
}
using RuntimeParser = CmdlineParser<RuntimeArgumentMap, RuntimeArgumentMap::Key>;
// Yes, the stack frame is huge. But we get called super early on (and just once)
// to pass the command line arguments, so we'll probably be ok.
// Ideas to avoid suppressing this diagnostic are welcome!
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wframe-larger-than="
std::unique_ptr<RuntimeParser> ParsedOptions::MakeParser(bool ignore_unrecognized) {
using M = RuntimeArgumentMap;
std::unique_ptr<RuntimeParser::Builder> parser_builder =
std::unique_ptr<RuntimeParser::Builder>(new RuntimeParser::Builder());
parser_builder->
Define("-Xzygote")
.IntoKey(M::Zygote)
.Define("-help")
.IntoKey(M::Help)
.Define("-showversion")
.IntoKey(M::ShowVersion)
.Define("-Xbootclasspath:_")
.WithType<std::string>()
.IntoKey(M::BootClassPath)
.Define("-Xbootclasspath-locations:_")
.WithType<ParseStringList<':'>>() // std::vector<std::string>, split by :
.IntoKey(M::BootClassPathLocations)
.Define({"-classpath _", "-cp _"})
.WithType<std::string>()
.IntoKey(M::ClassPath)
.Define("-Ximage:_")
.WithType<std::string>()
.IntoKey(M::Image)
.Define("-Xcheck:jni")
.IntoKey(M::CheckJni)
.Define("-Xjniopts:forcecopy")
.IntoKey(M::JniOptsForceCopy)
.Define({"-Xrunjdwp:_", "-agentlib:jdwp=_"})
.WithType<JDWP::JdwpOptions>()
.IntoKey(M::JdwpOptions)
.Define("-Xms_")
.WithType<MemoryKiB>()
.IntoKey(M::MemoryInitialSize)
.Define("-Xmx_")
.WithType<MemoryKiB>()
.IntoKey(M::MemoryMaximumSize)
.Define("-XX:HeapGrowthLimit=_")
.WithType<MemoryKiB>()
.IntoKey(M::HeapGrowthLimit)
.Define("-XX:HeapMinFree=_")
.WithType<MemoryKiB>()
.IntoKey(M::HeapMinFree)
.Define("-XX:HeapMaxFree=_")
.WithType<MemoryKiB>()
.IntoKey(M::HeapMaxFree)
.Define("-XX:NonMovingSpaceCapacity=_")
.WithType<MemoryKiB>()
.IntoKey(M::NonMovingSpaceCapacity)
.Define("-XX:HeapTargetUtilization=_")
.WithType<double>().WithRange(0.1, 0.9)
.IntoKey(M::HeapTargetUtilization)
.Define("-XX:ForegroundHeapGrowthMultiplier=_")
.WithType<double>().WithRange(0.1, 1.0)
.IntoKey(M::ForegroundHeapGrowthMultiplier)
.Define("-XX:ParallelGCThreads=_")
.WithType<unsigned int>()
.IntoKey(M::ParallelGCThreads)
.Define("-XX:ConcGCThreads=_")
.WithType<unsigned int>()
.IntoKey(M::ConcGCThreads)
.Define("-Xss_")
.WithType<Memory<1>>()
.IntoKey(M::StackSize)
.Define("-XX:MaxSpinsBeforeThinLockInflation=_")
.WithType<unsigned int>()
.IntoKey(M::MaxSpinsBeforeThinLockInflation)
.Define("-XX:LongPauseLogThreshold=_") // in ms
.WithType<MillisecondsToNanoseconds>() // store as ns
.IntoKey(M::LongPauseLogThreshold)
.Define("-XX:LongGCLogThreshold=_") // in ms
.WithType<MillisecondsToNanoseconds>() // store as ns
.IntoKey(M::LongGCLogThreshold)
.Define("-XX:DumpGCPerformanceOnShutdown")
.IntoKey(M::DumpGCPerformanceOnShutdown)
.Define("-XX:DumpJITInfoOnShutdown")
.IntoKey(M::DumpJITInfoOnShutdown)
.Define("-XX:IgnoreMaxFootprint")
.IntoKey(M::IgnoreMaxFootprint)
.Define("-XX:LowMemoryMode")
.IntoKey(M::LowMemoryMode)
.Define("-XX:UseTLAB")
.WithValue(true)
.IntoKey(M::UseTLAB)
.Define({"-XX:EnableHSpaceCompactForOOM", "-XX:DisableHSpaceCompactForOOM"})
.WithValues({true, false})
.IntoKey(M::EnableHSpaceCompactForOOM)
.Define("-Xusejit:_")
.WithType<bool>()
.WithValueMap({{"false", false}, {"true", true}})
.IntoKey(M::UseJIT)
.Define("-Xjitcodecachesize:_")
.WithType<MemoryKiB>()
.IntoKey(M::JITCodeCacheCapacity)
.Define("-Xjitthreshold:_")
.WithType<unsigned int>()
.IntoKey(M::JITCompileThreshold)
.Define("-XX:HspaceCompactForOOMMinIntervalMs=_") // in ms
.WithType<MillisecondsToNanoseconds>() // store as ns
.IntoKey(M::HSpaceCompactForOOMMinIntervalsMs)
.Define("-D_")
.WithType<std::vector<std::string>>().AppendValues()
.IntoKey(M::PropertiesList)
.Define("-Xjnitrace:_")
.WithType<std::string>()
.IntoKey(M::JniTrace)
.Define("-Xpatchoat:_")
.WithType<std::string>()
.IntoKey(M::PatchOat)
.Define({"-Xrelocate", "-Xnorelocate"})
.WithValues({true, false})
.IntoKey(M::Relocate)
.Define({"-Xdex2oat", "-Xnodex2oat"})
.WithValues({true, false})
.IntoKey(M::Dex2Oat)
.Define({"-Ximage-dex2oat", "-Xnoimage-dex2oat"})
.WithValues({true, false})
.IntoKey(M::ImageDex2Oat)
.Define("-Xint")
.WithValue(true)
.IntoKey(M::Interpret)
.Define("-Xgc:_")
.WithType<XGcOption>()
.IntoKey(M::GcOption)
.Define("-XX:LargeObjectSpace=_")
.WithType<gc::space::LargeObjectSpaceType>()
.WithValueMap({{"disabled", gc::space::LargeObjectSpaceType::kDisabled},
{"freelist", gc::space::LargeObjectSpaceType::kFreeList},
{"map", gc::space::LargeObjectSpaceType::kMap}})
.IntoKey(M::LargeObjectSpace)
.Define("-XX:LargeObjectThreshold=_")
.WithType<Memory<1>>()
.IntoKey(M::LargeObjectThreshold)
.Define("-XX:BackgroundGC=_")
.WithType<BackgroundGcOption>()
.IntoKey(M::BackgroundGc)
.Define("-XX:+DisableExplicitGC")
.IntoKey(M::DisableExplicitGC)
.Define("-verbose:_")
.WithType<LogVerbosity>()
.IntoKey(M::Verbose)
.Define("-Xlockprofthreshold:_")
.WithType<unsigned int>()
.IntoKey(M::LockProfThreshold)
.Define("-Xstacktracefile:_")
.WithType<std::string>()
.IntoKey(M::StackTraceFile)
.Define("-Xmethod-trace")
.IntoKey(M::MethodTrace)
.Define("-Xmethod-trace-file:_")
.WithType<std::string>()
.IntoKey(M::MethodTraceFile)
.Define("-Xmethod-trace-file-size:_")
.WithType<unsigned int>()
.IntoKey(M::MethodTraceFileSize)
.Define("-Xmethod-trace-stream")
.IntoKey(M::MethodTraceStreaming)
.Define("-Xprofile:_")
.WithType<TraceClockSource>()
.WithValueMap({{"threadcpuclock", TraceClockSource::kThreadCpu},
{"wallclock", TraceClockSource::kWall},
{"dualclock", TraceClockSource::kDual}})
.IntoKey(M::ProfileClock)
.Define("-Xenable-profiler")
.WithType<TestProfilerOptions>()
.AppendValues()
.IntoKey(M::ProfilerOpts) // NOTE: Appends into same key as -Xprofile-*
.Define("-Xprofile-_") // -Xprofile-<key>:<value>
.WithType<TestProfilerOptions>()
.AppendValues()
.IntoKey(M::ProfilerOpts) // NOTE: Appends into same key as -Xenable-profiler
.Define("-Xcompiler:_")
.WithType<std::string>()
.IntoKey(M::Compiler)
.Define("-Xcompiler-option _")
.WithType<std::vector<std::string>>()
.AppendValues()
.IntoKey(M::CompilerOptions)
.Define("-Ximage-compiler-option _")
.WithType<std::vector<std::string>>()
.AppendValues()
.IntoKey(M::ImageCompilerOptions)
.Define("-Xverify:_")
.WithType<bool>()
.WithValueMap({{"none", false},
{"remote", true},
{"all", true}})
.IntoKey(M::Verify)
.Define("-XX:NativeBridge=_")
.WithType<std::string>()
.IntoKey(M::NativeBridge)
.Define("-Xzygote-max-boot-retry=_")
.WithType<unsigned int>()
.IntoKey(M::ZygoteMaxFailedBoots)
.Define("-Xno-dex-file-fallback")
.IntoKey(M::NoDexFileFallback)
.Define("--cpu-abilist=_")
.WithType<std::string>()
.IntoKey(M::CpuAbiList)
.Define("-Xfingerprint:_")
.WithType<std::string>()
.IntoKey(M::Fingerprint)
.Ignore({
"-ea", "-da", "-enableassertions", "-disableassertions", "--runtime-arg", "-esa",
"-dsa", "-enablesystemassertions", "-disablesystemassertions", "-Xrs", "-Xint:_",
"-Xdexopt:_", "-Xnoquithandler", "-Xjnigreflimit:_", "-Xgenregmap", "-Xnogenregmap",
"-Xverifyopt:_", "-Xcheckdexsum", "-Xincludeselectedop", "-Xjitop:_",
"-Xincludeselectedmethod", "-Xjitthreshold:_",
"-Xjitblocking", "-Xjitmethod:_", "-Xjitclass:_", "-Xjitoffset:_",
"-Xjitconfig:_", "-Xjitcheckcg", "-Xjitverbose", "-Xjitprofile",
"-Xjitdisableopt", "-Xjitsuspendpoll", "-XX:mainThreadStackSize=_"})
.IgnoreUnrecognized(ignore_unrecognized);
// TODO: Move Usage information into this DSL.
return std::unique_ptr<RuntimeParser>(new RuntimeParser(parser_builder->Build()));
}
#pragma GCC diagnostic pop
// Remove all the special options that have something in the void* part of the option.
// If runtime_options is not null, put the options in there.
// As a side-effect, populate the hooks from options.
bool ParsedOptions::ProcessSpecialOptions(const RuntimeOptions& options,
RuntimeArgumentMap* runtime_options,
std::vector<std::string>* out_options) {
using M = RuntimeArgumentMap;
// TODO: Move the below loop into JNI
// Handle special options that set up hooks
for (size_t i = 0; i < options.size(); ++i) {
const std::string option(options[i].first);
// TODO: support -Djava.class.path
if (option == "bootclasspath") {
auto boot_class_path
= reinterpret_cast<const std::vector<const DexFile*>*>(options[i].second);
if (runtime_options != nullptr) {
runtime_options->Set(M::BootClassPathDexList, boot_class_path);
}
} else if (option == "compilercallbacks") {
CompilerCallbacks* compiler_callbacks =
reinterpret_cast<CompilerCallbacks*>(const_cast<void*>(options[i].second));
if (runtime_options != nullptr) {
runtime_options->Set(M::CompilerCallbacksPtr, compiler_callbacks);
}
} else if (option == "imageinstructionset") {
const char* isa_str = reinterpret_cast<const char*>(options[i].second);
auto&& image_isa = GetInstructionSetFromString(isa_str);
if (image_isa == kNone) {
Usage("%s is not a valid instruction set.", isa_str);
return false;
}
if (runtime_options != nullptr) {
runtime_options->Set(M::ImageInstructionSet, image_isa);
}
} else if (option == "sensitiveThread") {
const void* hook = options[i].second;
bool (*hook_is_sensitive_thread)() = reinterpret_cast<bool (*)()>(const_cast<void*>(hook));
if (runtime_options != nullptr) {
runtime_options->Set(M::HookIsSensitiveThread, hook_is_sensitive_thread);
}
} else if (option == "vfprintf") {
const void* hook = options[i].second;
if (hook == nullptr) {
Usage("vfprintf argument was nullptr");
return false;
}
int (*hook_vfprintf)(FILE *, const char*, va_list) =
reinterpret_cast<int (*)(FILE *, const char*, va_list)>(const_cast<void*>(hook));
if (runtime_options != nullptr) {
runtime_options->Set(M::HookVfprintf, hook_vfprintf);
}
hook_vfprintf_ = hook_vfprintf;
} else if (option == "exit") {
const void* hook = options[i].second;
if (hook == nullptr) {
Usage("exit argument was nullptr");
return false;
}
void(*hook_exit)(jint) = reinterpret_cast<void(*)(jint)>(const_cast<void*>(hook));
if (runtime_options != nullptr) {
runtime_options->Set(M::HookExit, hook_exit);
}
hook_exit_ = hook_exit;
} else if (option == "abort") {
const void* hook = options[i].second;
if (hook == nullptr) {
Usage("abort was nullptr\n");
return false;
}
void(*hook_abort)() = reinterpret_cast<void(*)()>(const_cast<void*>(hook));
if (runtime_options != nullptr) {
runtime_options->Set(M::HookAbort, hook_abort);
}
hook_abort_ = hook_abort;
} else {
// It is a regular option, that doesn't have a known 'second' value.
// Push it on to the regular options which will be parsed by our parser.
if (out_options != nullptr) {
out_options->push_back(option);
}
}
}
return true;
}
bool ParsedOptions::Parse(const RuntimeOptions& options, bool ignore_unrecognized,
RuntimeArgumentMap* runtime_options) {
// gLogVerbosity.class_linker = true; // TODO: don't check this in!
// gLogVerbosity.compiler = true; // TODO: don't check this in!
// gLogVerbosity.gc = true; // TODO: don't check this in!
// gLogVerbosity.heap = true; // TODO: don't check this in!
// gLogVerbosity.jdwp = true; // TODO: don't check this in!
// gLogVerbosity.jit = true; // TODO: don't check this in!
// gLogVerbosity.jni = true; // TODO: don't check this in!
// gLogVerbosity.monitor = true; // TODO: don't check this in!
// gLogVerbosity.profiler = true; // TODO: don't check this in!
// gLogVerbosity.signals = true; // TODO: don't check this in!
// gLogVerbosity.startup = true; // TODO: don't check this in!
// gLogVerbosity.third_party_jni = true; // TODO: don't check this in!
// gLogVerbosity.threads = true; // TODO: don't check this in!
// gLogVerbosity.verifier = true; // TODO: don't check this in!
for (size_t i = 0; i < options.size(); ++i) {
if (true && options[0].first == "-Xzygote") {
LOG(INFO) << "option[" << i << "]=" << options[i].first;
}
}
auto parser = MakeParser(ignore_unrecognized);
// Convert to a simple string list (without the magic pointer options)
std::vector<std::string> argv_list;
if (!ProcessSpecialOptions(options, nullptr, &argv_list)) {
return false;
}
CmdlineResult parse_result = parser->Parse(argv_list);
// Handle parse errors by displaying the usage and potentially exiting.
if (parse_result.IsError()) {
if (parse_result.GetStatus() == CmdlineResult::kUsage) {
UsageMessage(stdout, "%s\n", parse_result.GetMessage().c_str());
Exit(0);
} else if (parse_result.GetStatus() == CmdlineResult::kUnknown && !ignore_unrecognized) {
Usage("%s\n", parse_result.GetMessage().c_str());
return false;
} else {
Usage("%s\n", parse_result.GetMessage().c_str());
Exit(0);
}
UNREACHABLE();
}
using M = RuntimeArgumentMap;
RuntimeArgumentMap args = parser->ReleaseArgumentsMap();
// -help, -showversion, etc.
if (args.Exists(M::Help)) {
Usage(nullptr);
return false;
} else if (args.Exists(M::ShowVersion)) {
UsageMessage(stdout, "ART version %s\n", Runtime::GetVersion());
Exit(0);
} else if (args.Exists(M::BootClassPath)) {
LOG(INFO) << "setting boot class path to " << *args.Get(M::BootClassPath);
}
// Set a default boot class path if we didn't get an explicit one via command line.
if (getenv("BOOTCLASSPATH") != nullptr) {
args.SetIfMissing(M::BootClassPath, std::string(getenv("BOOTCLASSPATH")));
}
// Set a default class path if we didn't get an explicit one via command line.
if (getenv("CLASSPATH") != nullptr) {
args.SetIfMissing(M::ClassPath, std::string(getenv("CLASSPATH")));
}
// Default to number of processors minus one since the main GC thread also does work.
args.SetIfMissing(M::ParallelGCThreads, gc::Heap::kDefaultEnableParallelGC ?
static_cast<unsigned int>(sysconf(_SC_NPROCESSORS_CONF) - 1u) : 0u);
// -Xverbose:
{
LogVerbosity *log_verbosity = args.Get(M::Verbose);
if (log_verbosity != nullptr) {
gLogVerbosity = *log_verbosity;
}
}
// -Xprofile:
Trace::SetDefaultClockSource(args.GetOrDefault(M::ProfileClock));
if (!ProcessSpecialOptions(options, &args, nullptr)) {
return false;
}
{
// If not set, background collector type defaults to homogeneous compaction.
// If foreground is GSS, use GSS as background collector.
// If not low memory mode, semispace otherwise.
gc::CollectorType background_collector_type_;
gc::CollectorType collector_type_ = (XGcOption{}).collector_type_; // NOLINT [whitespace/braces] [5]
bool low_memory_mode_ = args.Exists(M::LowMemoryMode);
background_collector_type_ = args.GetOrDefault(M::BackgroundGc);
{
XGcOption* xgc = args.Get(M::GcOption);
if (xgc != nullptr && xgc->collector_type_ != gc::kCollectorTypeNone) {
collector_type_ = xgc->collector_type_;
}
}
if (background_collector_type_ == gc::kCollectorTypeNone) {
if (collector_type_ != gc::kCollectorTypeGSS) {
background_collector_type_ = low_memory_mode_ ?
gc::kCollectorTypeSS : gc::kCollectorTypeHomogeneousSpaceCompact;
} else {
background_collector_type_ = collector_type_;
}
}
args.Set(M::BackgroundGc, BackgroundGcOption { background_collector_type_ });
}
// If a reference to the dalvik core.jar snuck in, replace it with
// the art specific version. This can happen with on device
// boot.art/boot.oat generation by GenerateImage which relies on the
// value of BOOTCLASSPATH.
#if defined(ART_TARGET)
std::string core_jar("/core.jar");
std::string core_libart_jar("/core-libart.jar");
#else
// The host uses hostdex files.
std::string core_jar("/core-hostdex.jar");
std::string core_libart_jar("/core-libart-hostdex.jar");
#endif
auto boot_class_path_string = args.GetOrDefault(M::BootClassPath);
size_t core_jar_pos = boot_class_path_string.find(core_jar);
if (core_jar_pos != std::string::npos) {
boot_class_path_string.replace(core_jar_pos, core_jar.size(), core_libart_jar);
args.Set(M::BootClassPath, boot_class_path_string);
}
{
auto&& boot_class_path = args.GetOrDefault(M::BootClassPath);
auto&& boot_class_path_locations = args.GetOrDefault(M::BootClassPathLocations);
if (args.Exists(M::BootClassPathLocations)) {
size_t boot_class_path_count = ParseStringList<':'>::Split(boot_class_path).Size();
if (boot_class_path_count != boot_class_path_locations.Size()) {
Usage("The number of boot class path files does not match"
" the number of boot class path locations given\n"
" boot class path files (%zu): %s\n"
" boot class path locations (%zu): %s\n",
boot_class_path.size(), boot_class_path_string.c_str(),
boot_class_path_locations.Size(), boot_class_path_locations.Join().c_str());
return false;
}
}
}
if (!args.Exists(M::CompilerCallbacksPtr) && !args.Exists(M::Image)) {
std::string image = GetAndroidRoot();
image += "/framework/boot.art";
args.Set(M::Image, image);
}
if (args.GetOrDefault(M::HeapGrowthLimit) == 0u) { // 0 means no growth limit
args.Set(M::HeapGrowthLimit, args.GetOrDefault(M::MemoryMaximumSize));
}
*runtime_options = std::move(args);
return true;
}
void ParsedOptions::Exit(int status) {
hook_exit_(status);
}
void ParsedOptions::Abort() {
hook_abort_();
}
void ParsedOptions::UsageMessageV(FILE* stream, const char* fmt, va_list ap) {
hook_vfprintf_(stream, fmt, ap);
}
void ParsedOptions::UsageMessage(FILE* stream, const char* fmt, ...) {
va_list ap;
va_start(ap, fmt);
UsageMessageV(stream, fmt, ap);
va_end(ap);
}
void ParsedOptions::Usage(const char* fmt, ...) {
bool error = (fmt != nullptr);
FILE* stream = error ? stderr : stdout;
if (fmt != nullptr) {
va_list ap;
va_start(ap, fmt);
UsageMessageV(stream, fmt, ap);
va_end(ap);
}
const char* program = "dalvikvm";
UsageMessage(stream, "%s: [options] class [argument ...]\n", program);
UsageMessage(stream, "\n");
UsageMessage(stream, "The following standard options are supported:\n");
UsageMessage(stream, " -classpath classpath (-cp classpath)\n");
UsageMessage(stream, " -Dproperty=value\n");
UsageMessage(stream, " -verbose:tag ('gc', 'jit', 'jni', or 'class')\n");
UsageMessage(stream, " -showversion\n");
UsageMessage(stream, " -help\n");
UsageMessage(stream, " -agentlib:jdwp=options\n");
UsageMessage(stream, "\n");
UsageMessage(stream, "The following extended options are supported:\n");
UsageMessage(stream, " -Xrunjdwp:<options>\n");
UsageMessage(stream, " -Xbootclasspath:bootclasspath\n");
UsageMessage(stream, " -Xcheck:tag (e.g. 'jni')\n");
UsageMessage(stream, " -XmsN (min heap, must be multiple of 1K, >= 1MB)\n");
UsageMessage(stream, " -XmxN (max heap, must be multiple of 1K, >= 2MB)\n");
UsageMessage(stream, " -XssN (stack size)\n");
UsageMessage(stream, " -Xint\n");
UsageMessage(stream, "\n");
UsageMessage(stream, "The following Dalvik options are supported:\n");
UsageMessage(stream, " -Xzygote\n");
UsageMessage(stream, " -Xjnitrace:substring (eg NativeClass or nativeMethod)\n");
UsageMessage(stream, " -Xstacktracefile:<filename>\n");
UsageMessage(stream, " -Xgc:[no]preverify\n");
UsageMessage(stream, " -Xgc:[no]postverify\n");
UsageMessage(stream, " -XX:HeapGrowthLimit=N\n");
UsageMessage(stream, " -XX:HeapMinFree=N\n");
UsageMessage(stream, " -XX:HeapMaxFree=N\n");
UsageMessage(stream, " -XX:NonMovingSpaceCapacity=N\n");
UsageMessage(stream, " -XX:HeapTargetUtilization=doublevalue\n");
UsageMessage(stream, " -XX:ForegroundHeapGrowthMultiplier=doublevalue\n");
UsageMessage(stream, " -XX:LowMemoryMode\n");
UsageMessage(stream, " -Xprofile:{threadcpuclock,wallclock,dualclock}\n");
UsageMessage(stream, " -Xjitcodecachesize:N\n");
UsageMessage(stream, " -Xjitthreshold:integervalue\n");
UsageMessage(stream, "\n");
UsageMessage(stream, "The following unique to ART options are supported:\n");
UsageMessage(stream, " -Xgc:[no]preverify_rosalloc\n");
UsageMessage(stream, " -Xgc:[no]postsweepingverify_rosalloc\n");
UsageMessage(stream, " -Xgc:[no]postverify_rosalloc\n");
UsageMessage(stream, " -Xgc:[no]presweepingverify\n");
UsageMessage(stream, " -Ximage:filename\n");
UsageMessage(stream, " -Xbootclasspath-locations:bootclasspath\n"
" (override the dex locations of the -Xbootclasspath files)\n");
UsageMessage(stream, " -XX:+DisableExplicitGC\n");
UsageMessage(stream, " -XX:ParallelGCThreads=integervalue\n");
UsageMessage(stream, " -XX:ConcGCThreads=integervalue\n");
UsageMessage(stream, " -XX:MaxSpinsBeforeThinLockInflation=integervalue\n");
UsageMessage(stream, " -XX:LongPauseLogThreshold=integervalue\n");
UsageMessage(stream, " -XX:LongGCLogThreshold=integervalue\n");
UsageMessage(stream, " -XX:DumpGCPerformanceOnShutdown\n");
UsageMessage(stream, " -XX:DumpJITInfoOnShutdown\n");
UsageMessage(stream, " -XX:IgnoreMaxFootprint\n");
UsageMessage(stream, " -XX:UseTLAB\n");
UsageMessage(stream, " -XX:BackgroundGC=none\n");
UsageMessage(stream, " -XX:LargeObjectSpace={disabled,map,freelist}\n");
UsageMessage(stream, " -XX:LargeObjectThreshold=N\n");
UsageMessage(stream, " -Xmethod-trace\n");
UsageMessage(stream, " -Xmethod-trace-file:filename");
UsageMessage(stream, " -Xmethod-trace-file-size:integervalue\n");
UsageMessage(stream, " -Xenable-profiler\n");
UsageMessage(stream, " -Xprofile-filename:filename\n");
UsageMessage(stream, " -Xprofile-period:integervalue\n");
UsageMessage(stream, " -Xprofile-duration:integervalue\n");
UsageMessage(stream, " -Xprofile-interval:integervalue\n");
UsageMessage(stream, " -Xprofile-backoff:doublevalue\n");
UsageMessage(stream, " -Xprofile-start-immediately\n");
UsageMessage(stream, " -Xprofile-top-k-threshold:doublevalue\n");
UsageMessage(stream, " -Xprofile-top-k-change-threshold:doublevalue\n");
UsageMessage(stream, " -Xprofile-type:{method,stack}\n");
UsageMessage(stream, " -Xprofile-max-stack-depth:integervalue\n");
UsageMessage(stream, " -Xcompiler:filename\n");
UsageMessage(stream, " -Xcompiler-option dex2oat-option\n");
UsageMessage(stream, " -Ximage-compiler-option dex2oat-option\n");
UsageMessage(stream, " -Xpatchoat:filename\n");
UsageMessage(stream, " -Xusejit:booleanvalue\n");
UsageMessage(stream, " -X[no]relocate\n");
UsageMessage(stream, " -X[no]dex2oat (Whether to invoke dex2oat on the application)\n");
UsageMessage(stream, " -X[no]image-dex2oat (Whether to create and use a boot image)\n");
UsageMessage(stream, " -Xno-dex-file-fallback "
"(Don't fall back to dex files without oat files)\n");
UsageMessage(stream, "\n");
UsageMessage(stream, "The following previously supported Dalvik options are ignored:\n");
UsageMessage(stream, " -ea[:<package name>... |:<class name>]\n");
UsageMessage(stream, " -da[:<package name>... |:<class name>]\n");
UsageMessage(stream, " (-enableassertions, -disableassertions)\n");
UsageMessage(stream, " -esa\n");
UsageMessage(stream, " -dsa\n");
UsageMessage(stream, " (-enablesystemassertions, -disablesystemassertions)\n");
UsageMessage(stream, " -Xverify:{none,remote,all}\n");
UsageMessage(stream, " -Xrs\n");
UsageMessage(stream, " -Xint:portable, -Xint:fast, -Xint:jit\n");
UsageMessage(stream, " -Xdexopt:{none,verified,all,full}\n");
UsageMessage(stream, " -Xnoquithandler\n");
UsageMessage(stream, " -Xjniopts:{warnonly,forcecopy}\n");
UsageMessage(stream, " -Xjnigreflimit:integervalue\n");
UsageMessage(stream, " -Xgc:[no]precise\n");
UsageMessage(stream, " -Xgc:[no]verifycardtable\n");
UsageMessage(stream, " -X[no]genregmap\n");
UsageMessage(stream, " -Xverifyopt:[no]checkmon\n");
UsageMessage(stream, " -Xcheckdexsum\n");
UsageMessage(stream, " -Xincludeselectedop\n");
UsageMessage(stream, " -Xjitop:hexopvalue[-endvalue][,hexopvalue[-endvalue]]*\n");
UsageMessage(stream, " -Xincludeselectedmethod\n");
UsageMessage(stream, " -Xjitblocking\n");
UsageMessage(stream, " -Xjitmethod:signature[,signature]* (eg Ljava/lang/String\\;replace)\n");
UsageMessage(stream, " -Xjitclass:classname[,classname]*\n");
UsageMessage(stream, " -Xjitoffset:offset[,offset]\n");
UsageMessage(stream, " -Xjitconfig:filename\n");
UsageMessage(stream, " -Xjitcheckcg\n");
UsageMessage(stream, " -Xjitverbose\n");
UsageMessage(stream, " -Xjitprofile\n");
UsageMessage(stream, " -Xjitdisableopt\n");
UsageMessage(stream, " -Xjitsuspendpoll\n");
UsageMessage(stream, " -XX:mainThreadStackSize=N\n");
UsageMessage(stream, "\n");
Exit((error) ? 1 : 0);
}
} // namespace art