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// Copyright 2011 Google Inc. All Rights Reserved.
#include <stdio.h>
#include <iosfwd>
#include <string>
#include <utility>
#include <vector>
#include <jni.h>
#include "constants.h"
#include "heap.h"
#include "globals.h"
#include "macros.h"
#include "runtime_stats.h"
#include "stringpiece.h"
#include "unordered_set.h"
namespace art {
template<class T> class PrimitiveArray;
typedef PrimitiveArray<int8_t> ByteArray;
class ClassLinker;
class DexFile;
class Heap;
class InternTable;
class JavaVMExt;
class Method;
class SignalCatcher;
class String;
class ThreadList;
class Runtime {
typedef std::vector<std::pair<StringPiece, const void*> > Options;
class ParsedOptions {
// returns null if problem parsing and ignore_unrecognized is false
static ParsedOptions* Create(const Options& options, bool ignore_unrecognized);
std::string boot_class_path_string_;
std::vector<const DexFile*> boot_class_path_;
std::string class_path_string_;
std::vector<const DexFile*> class_path_;
const char* boot_image_;
std::vector<const char*> images_;
bool check_jni_;
std::string jni_trace_;
size_t heap_initial_size_;
size_t heap_maximum_size_;
size_t stack_size_;
jint (*hook_vfprintf_)(FILE* stream, const char* format, va_list ap);
void (*hook_exit_)(jint status);
void (*hook_abort_)();
std::tr1::unordered_set<std::string> verbose_;
std::vector<std::string> properties_;
bool IsVerbose(const std::string& key) const {
return verbose_.find(key) != verbose_.end();
ParsedOptions() {}
// Creates and initializes a new runtime.
static Runtime* Create(const Options& options, bool ignore_unrecognized);
// Starts a runtime, which may cause threads to be started and code to run.
void Start();
bool IsStarted();
static Runtime* Current() {
return instance_;
// Compiles a dex file.
static void Compile(const StringPiece& filename);
// Aborts semi-cleanly. Used in the implementation of LOG(FATAL), which most
// callers should prefer.
// This isn't marked ((noreturn)) because then gcc will merge multiple calls
// in a single function together. This reduces code size slightly, but means
// that the native stack trace we get may point at the wrong call site.
static void Abort(const char* file, int line);
// Attaches the current native thread to the runtime.
void AttachCurrentThread(const char* name, bool as_daemon);
void CallExitHook(jint status);
// Detaches the current native thread from the runtime.
void DetachCurrentThread();
void Dump(std::ostream& os);
const std::string& GetBootClassPath() const {
return boot_class_path_;
ClassLinker* GetClassLinker() const {
return class_linker_;
const std::string& GetClassPath() const {
return class_path_;
size_t GetDefaultStackSize() const {
return default_stack_size_;
InternTable* GetInternTable() const {
return intern_table_;
JavaVMExt* GetJavaVM() const {
return java_vm_;
const std::vector<std::string>& GetProperties() const {
return properties_;
ThreadList* GetThreadList() const {
return thread_list_;
const char* GetVersion() const {
return "2.0.0";
void VisitRoots(Heap::RootVisitor* visitor, void* arg) const;
bool HasJniStubArray() const {
return jni_stub_array_ != NULL;
ByteArray* GetJniStubArray() const {
CHECK(jni_stub_array_ != NULL);
return jni_stub_array_;
void SetJniStubArray(ByteArray* jni_stub_array) {
CHECK(jni_stub_array != NULL);
CHECK(jni_stub_array_ == NULL || jni_stub_array_ == jni_stub_array);
jni_stub_array_ = jni_stub_array;
Method* CreateCalleeSaveMethod(InstructionSet insns);
bool HasCalleeSaveMethod() const {
return callee_save_method_ != NULL;
// Returns a special method that describes all callee saves being spilled to the stack.
Method* GetCalleeSaveMethod() const {
return callee_save_method_;
void SetCalleeSaveMethod(Method* method) {
callee_save_method_ = method;
int32_t GetStat(int kind);
RuntimeStats* GetStats();
bool HasStatsEnabled() const {
return stats_enabled_;
void ResetStats(int kinds);
void SetStatsEnabled(bool new_state);
static void PlatformAbort(const char*, int);
void BlockSignals();
bool Init(const Options& options, bool ignore_unrecognized);
void InitNativeMethods();
void RegisterRuntimeNativeMethods(JNIEnv*);
void StartDaemonThreads();
std::string boot_class_path_;
std::string class_path_;
std::vector<std::string> properties_;
// The default stack size for managed threads created by the runtime.
size_t default_stack_size_;
ThreadList* thread_list_;
InternTable* intern_table_;
ClassLinker* class_linker_;
SignalCatcher* signal_catcher_;
JavaVMExt* java_vm_;
ByteArray* jni_stub_array_;
Method* callee_save_method_;
bool started_;
// Hooks supported by JNI_CreateJavaVM
jint (*vfprintf_)(FILE* stream, const char* format, va_list ap);
void (*exit_)(jint status);
void (*abort_)();
bool stats_enabled_;
RuntimeStats stats_;
// A pointer to the active runtime or NULL.
static Runtime* instance_;
} // namespace art
#endif // ART_SRC_RUNTIME_H_