| /* |
| * 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 "runtime.h" |
| |
| // sys/mount.h has to come before linux/fs.h due to redefinition of MS_RDONLY, MS_BIND, etc |
| #include <sys/mount.h> |
| #ifdef __linux__ |
| #include <linux/fs.h> |
| #endif |
| |
| #include <signal.h> |
| #include <sys/syscall.h> |
| #include <valgrind.h> |
| |
| #include <cstdio> |
| #include <cstdlib> |
| #include <limits> |
| #include <memory> |
| #include <vector> |
| #include <fcntl.h> |
| |
| #include "arch/arm/quick_method_frame_info_arm.h" |
| #include "arch/arm/registers_arm.h" |
| #include "arch/arm64/quick_method_frame_info_arm64.h" |
| #include "arch/arm64/registers_arm64.h" |
| #include "arch/mips/quick_method_frame_info_mips.h" |
| #include "arch/mips/registers_mips.h" |
| #include "arch/x86/quick_method_frame_info_x86.h" |
| #include "arch/x86/registers_x86.h" |
| #include "arch/x86_64/quick_method_frame_info_x86_64.h" |
| #include "arch/x86_64/registers_x86_64.h" |
| #include "atomic.h" |
| #include "class_linker.h" |
| #include "debugger.h" |
| #include "elf_file.h" |
| #include "fault_handler.h" |
| #include "gc/accounting/card_table-inl.h" |
| #include "gc/heap.h" |
| #include "gc/space/image_space.h" |
| #include "gc/space/space.h" |
| #include "image.h" |
| #include "instrumentation.h" |
| #include "intern_table.h" |
| #include "jni_internal.h" |
| #include "mirror/art_field-inl.h" |
| #include "mirror/art_method-inl.h" |
| #include "mirror/array.h" |
| #include "mirror/class-inl.h" |
| #include "mirror/class_loader.h" |
| #include "mirror/stack_trace_element.h" |
| #include "mirror/throwable.h" |
| #include "monitor.h" |
| #include "native_bridge_art_interface.h" |
| #include "parsed_options.h" |
| #include "oat_file.h" |
| #include "os.h" |
| #include "quick/quick_method_frame_info.h" |
| #include "reflection.h" |
| #include "ScopedLocalRef.h" |
| #include "scoped_thread_state_change.h" |
| #include "signal_catcher.h" |
| #include "signal_set.h" |
| #include "handle_scope-inl.h" |
| #include "thread.h" |
| #include "thread_list.h" |
| #include "trace.h" |
| #include "transaction.h" |
| #include "profiler.h" |
| #include "verifier/method_verifier.h" |
| #include "well_known_classes.h" |
| |
| #include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art. |
| |
| #ifdef HAVE_ANDROID_OS |
| #include "cutils/properties.h" |
| #endif |
| |
| namespace art { |
| |
| static constexpr bool kEnableJavaStackTraceHandler = true; |
| const char* Runtime::kDefaultInstructionSetFeatures = |
| STRINGIFY(ART_DEFAULT_INSTRUCTION_SET_FEATURES); |
| Runtime* Runtime::instance_ = NULL; |
| |
| Runtime::Runtime() |
| : instruction_set_(kNone), |
| compiler_callbacks_(nullptr), |
| is_zygote_(false), |
| must_relocate_(false), |
| is_concurrent_gc_enabled_(true), |
| is_explicit_gc_disabled_(false), |
| dex2oat_enabled_(true), |
| image_dex2oat_enabled_(true), |
| default_stack_size_(0), |
| heap_(nullptr), |
| max_spins_before_thin_lock_inflation_(Monitor::kDefaultMaxSpinsBeforeThinLockInflation), |
| monitor_list_(nullptr), |
| monitor_pool_(nullptr), |
| thread_list_(nullptr), |
| intern_table_(nullptr), |
| class_linker_(nullptr), |
| signal_catcher_(nullptr), |
| java_vm_(nullptr), |
| fault_message_lock_("Fault message lock"), |
| fault_message_(""), |
| method_verifier_lock_("Method verifiers lock"), |
| threads_being_born_(0), |
| shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)), |
| shutting_down_(false), |
| shutting_down_started_(false), |
| started_(false), |
| finished_starting_(false), |
| vfprintf_(nullptr), |
| exit_(nullptr), |
| abort_(nullptr), |
| stats_enabled_(false), |
| running_on_valgrind_(RUNNING_ON_VALGRIND > 0), |
| profiler_started_(false), |
| method_trace_(false), |
| method_trace_file_size_(0), |
| instrumentation_(), |
| use_compile_time_class_path_(false), |
| main_thread_group_(nullptr), |
| system_thread_group_(nullptr), |
| system_class_loader_(nullptr), |
| dump_gc_performance_on_shutdown_(false), |
| preinitialization_transaction_(nullptr), |
| null_pointer_handler_(nullptr), |
| suspend_handler_(nullptr), |
| stack_overflow_handler_(nullptr), |
| verify_(false), |
| target_sdk_version_(0), |
| implicit_null_checks_(false), |
| implicit_so_checks_(false), |
| implicit_suspend_checks_(false), |
| native_bridge_art_callbacks_({GetMethodShorty, GetNativeMethodCount, GetNativeMethods}) { |
| } |
| |
| Runtime::~Runtime() { |
| if (dump_gc_performance_on_shutdown_) { |
| // This can't be called from the Heap destructor below because it |
| // could call RosAlloc::InspectAll() which needs the thread_list |
| // to be still alive. |
| heap_->DumpGcPerformanceInfo(LOG(INFO)); |
| } |
| |
| Thread* self = Thread::Current(); |
| { |
| MutexLock mu(self, *Locks::runtime_shutdown_lock_); |
| shutting_down_started_ = true; |
| while (threads_being_born_ > 0) { |
| shutdown_cond_->Wait(self); |
| } |
| shutting_down_ = true; |
| } |
| // Shut down background profiler before the runtime exits. |
| if (profiler_started_) { |
| BackgroundMethodSamplingProfiler::Shutdown(); |
| } |
| |
| // Shutdown the fault manager if it was initialized. |
| fault_manager.Shutdown(); |
| |
| Trace::Shutdown(); |
| |
| // Make sure to let the GC complete if it is running. |
| heap_->WaitForGcToComplete(gc::kGcCauseBackground, self); |
| heap_->DeleteThreadPool(); |
| |
| // Make sure our internal threads are dead before we start tearing down things they're using. |
| Dbg::StopJdwp(); |
| delete signal_catcher_; |
| |
| // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended. |
| delete thread_list_; |
| delete monitor_list_; |
| delete monitor_pool_; |
| delete class_linker_; |
| delete heap_; |
| delete intern_table_; |
| delete java_vm_; |
| Thread::Shutdown(); |
| QuasiAtomic::Shutdown(); |
| verifier::MethodVerifier::Shutdown(); |
| // TODO: acquire a static mutex on Runtime to avoid racing. |
| CHECK(instance_ == nullptr || instance_ == this); |
| instance_ = nullptr; |
| |
| delete null_pointer_handler_; |
| delete suspend_handler_; |
| delete stack_overflow_handler_; |
| } |
| |
| struct AbortState { |
| void Dump(std::ostream& os) NO_THREAD_SAFETY_ANALYSIS { |
| if (gAborting > 1) { |
| os << "Runtime aborting --- recursively, so no thread-specific detail!\n"; |
| return; |
| } |
| gAborting++; |
| os << "Runtime aborting...\n"; |
| if (Runtime::Current() == NULL) { |
| os << "(Runtime does not yet exist!)\n"; |
| return; |
| } |
| Thread* self = Thread::Current(); |
| if (self == nullptr) { |
| os << "(Aborting thread was not attached to runtime!)\n"; |
| DumpKernelStack(os, GetTid(), " kernel: ", false); |
| DumpNativeStack(os, GetTid(), " native: ", nullptr); |
| } else { |
| os << "Aborting thread:\n"; |
| if (Locks::mutator_lock_->IsExclusiveHeld(self) || Locks::mutator_lock_->IsSharedHeld(self)) { |
| DumpThread(os, self); |
| } else { |
| if (Locks::mutator_lock_->SharedTryLock(self)) { |
| DumpThread(os, self); |
| Locks::mutator_lock_->SharedUnlock(self); |
| } |
| } |
| } |
| DumpAllThreads(os, self); |
| } |
| |
| void DumpThread(std::ostream& os, Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| self->Dump(os); |
| if (self->IsExceptionPending()) { |
| ThrowLocation throw_location; |
| mirror::Throwable* exception = self->GetException(&throw_location); |
| os << "Pending exception " << PrettyTypeOf(exception) |
| << " thrown by '" << throw_location.Dump() << "'\n" |
| << exception->Dump(); |
| } |
| } |
| |
| void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS { |
| Runtime* runtime = Runtime::Current(); |
| if (runtime != nullptr) { |
| ThreadList* thread_list = runtime->GetThreadList(); |
| if (thread_list != nullptr) { |
| bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self); |
| bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self); |
| if (!tll_already_held || !ml_already_held) { |
| os << "Dumping all threads without appropriate locks held:" |
| << (!tll_already_held ? " thread list lock" : "") |
| << (!ml_already_held ? " mutator lock" : "") |
| << "\n"; |
| } |
| os << "All threads:\n"; |
| thread_list->DumpLocked(os); |
| } |
| } |
| } |
| }; |
| |
| void Runtime::Abort() { |
| gAborting++; // set before taking any locks |
| |
| // Ensure that we don't have multiple threads trying to abort at once, |
| // which would result in significantly worse diagnostics. |
| MutexLock mu(Thread::Current(), *Locks::abort_lock_); |
| |
| // Get any pending output out of the way. |
| fflush(NULL); |
| |
| // Many people have difficulty distinguish aborts from crashes, |
| // so be explicit. |
| AbortState state; |
| LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state); |
| |
| // Call the abort hook if we have one. |
| if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) { |
| LOG(INTERNAL_FATAL) << "Calling abort hook..."; |
| Runtime::Current()->abort_(); |
| // notreached |
| LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!"; |
| } |
| |
| #if defined(__GLIBC__) |
| // TODO: we ought to be able to use pthread_kill(3) here (or abort(3), |
| // which POSIX defines in terms of raise(3), which POSIX defines in terms |
| // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through |
| // libpthread, which means the stacks we dump would be useless. Calling |
| // tgkill(2) directly avoids that. |
| syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT); |
| // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM? |
| // If not, we could use sigaction(3) before calling tgkill(2) and lose this call to exit(3). |
| exit(1); |
| #else |
| abort(); |
| #endif |
| // notreached |
| } |
| |
| void Runtime::PreZygoteFork() { |
| heap_->PreZygoteFork(); |
| } |
| |
| void Runtime::CallExitHook(jint status) { |
| if (exit_ != NULL) { |
| ScopedThreadStateChange tsc(Thread::Current(), kNative); |
| exit_(status); |
| LOG(WARNING) << "Exit hook returned instead of exiting!"; |
| } |
| } |
| |
| void Runtime::SweepSystemWeaks(IsMarkedCallback* visitor, void* arg) { |
| GetInternTable()->SweepInternTableWeaks(visitor, arg); |
| GetMonitorList()->SweepMonitorList(visitor, arg); |
| GetJavaVM()->SweepJniWeakGlobals(visitor, arg); |
| } |
| |
| bool Runtime::Create(const RuntimeOptions& options, bool ignore_unrecognized) { |
| // TODO: acquire a static mutex on Runtime to avoid racing. |
| if (Runtime::instance_ != NULL) { |
| return false; |
| } |
| InitLogging(NULL); // Calls Locks::Init() as a side effect. |
| instance_ = new Runtime; |
| if (!instance_->Init(options, ignore_unrecognized)) { |
| delete instance_; |
| instance_ = NULL; |
| return false; |
| } |
| return true; |
| } |
| |
| jobject CreateSystemClassLoader() { |
| if (Runtime::Current()->UseCompileTimeClassPath()) { |
| return NULL; |
| } |
| |
| ScopedObjectAccess soa(Thread::Current()); |
| ClassLinker* cl = Runtime::Current()->GetClassLinker(); |
| |
| StackHandleScope<2> hs(soa.Self()); |
| Handle<mirror::Class> class_loader_class( |
| hs.NewHandle(soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader))); |
| CHECK(cl->EnsureInitialized(class_loader_class, true, true)); |
| |
| mirror::ArtMethod* getSystemClassLoader = |
| class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;"); |
| CHECK(getSystemClassLoader != NULL); |
| |
| JValue result = InvokeWithJValues(soa, nullptr, soa.EncodeMethod(getSystemClassLoader), nullptr); |
| JNIEnv* env = soa.Self()->GetJniEnv(); |
| ScopedLocalRef<jobject> system_class_loader(env, |
| soa.AddLocalReference<jobject>(result.GetL())); |
| CHECK(system_class_loader.get() != nullptr); |
| |
| soa.Self()->SetClassLoaderOverride(system_class_loader.get()); |
| |
| Handle<mirror::Class> thread_class( |
| hs.NewHandle(soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread))); |
| CHECK(cl->EnsureInitialized(thread_class, true, true)); |
| |
| mirror::ArtField* contextClassLoader = |
| thread_class->FindDeclaredInstanceField("contextClassLoader", "Ljava/lang/ClassLoader;"); |
| CHECK(contextClassLoader != NULL); |
| |
| // We can't run in a transaction yet. |
| contextClassLoader->SetObject<false>(soa.Self()->GetPeer(), |
| soa.Decode<mirror::ClassLoader*>(system_class_loader.get())); |
| |
| return env->NewGlobalRef(system_class_loader.get()); |
| } |
| |
| std::string Runtime::GetPatchoatExecutable() const { |
| if (!patchoat_executable_.empty()) { |
| return patchoat_executable_; |
| } |
| std::string patchoat_executable_(GetAndroidRoot()); |
| patchoat_executable_ += (kIsDebugBuild ? "/bin/patchoatd" : "/bin/patchoat"); |
| return patchoat_executable_; |
| } |
| |
| std::string Runtime::GetCompilerExecutable() const { |
| if (!compiler_executable_.empty()) { |
| return compiler_executable_; |
| } |
| std::string compiler_executable(GetAndroidRoot()); |
| compiler_executable += (kIsDebugBuild ? "/bin/dex2oatd" : "/bin/dex2oat"); |
| return compiler_executable; |
| } |
| |
| bool Runtime::Start() { |
| VLOG(startup) << "Runtime::Start entering"; |
| |
| // Restore main thread state to kNative as expected by native code. |
| Thread* self = Thread::Current(); |
| |
| self->TransitionFromRunnableToSuspended(kNative); |
| |
| started_ = true; |
| |
| if (!IsImageDex2OatEnabled() || !Runtime::Current()->GetHeap()->HasImageSpace()) { |
| ScopedObjectAccess soa(Thread::Current()); |
| StackHandleScope<1> hs(soa.Self()); |
| auto klass(hs.NewHandle<mirror::Class>(mirror::Class::GetJavaLangClass())); |
| class_linker_->EnsureInitialized(klass, true, true); |
| } |
| |
| // InitNativeMethods needs to be after started_ so that the classes |
| // it touches will have methods linked to the oat file if necessary. |
| InitNativeMethods(); |
| |
| // Initialize well known thread group values that may be accessed threads while attaching. |
| InitThreadGroups(self); |
| |
| Thread::FinishStartup(); |
| |
| if (is_zygote_) { |
| if (!InitZygote()) { |
| return false; |
| } |
| } else { |
| DidForkFromZygote(); |
| } |
| |
| StartDaemonThreads(); |
| |
| system_class_loader_ = CreateSystemClassLoader(); |
| |
| { |
| ScopedObjectAccess soa(self); |
| self->GetJniEnv()->locals.AssertEmpty(); |
| } |
| |
| VLOG(startup) << "Runtime::Start exiting"; |
| finished_starting_ = true; |
| |
| if (profiler_options_.IsEnabled() && !profile_output_filename_.empty()) { |
| // User has asked for a profile using -Xenable-profiler. |
| // Create the profile file if it doesn't exist. |
| int fd = open(profile_output_filename_.c_str(), O_RDWR|O_CREAT|O_EXCL, 0660); |
| if (fd >= 0) { |
| close(fd); |
| } else if (errno != EEXIST) { |
| LOG(INFO) << "Failed to access the profile file. Profiler disabled."; |
| return true; |
| } |
| StartProfiler(profile_output_filename_.c_str()); |
| } |
| |
| return true; |
| } |
| |
| void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) { |
| DCHECK_GT(threads_being_born_, 0U); |
| threads_being_born_--; |
| if (shutting_down_started_ && threads_being_born_ == 0) { |
| shutdown_cond_->Broadcast(Thread::Current()); |
| } |
| } |
| |
| // Do zygote-mode-only initialization. |
| bool Runtime::InitZygote() { |
| #ifdef __linux__ |
| // zygote goes into its own process group |
| setpgid(0, 0); |
| |
| // See storage config details at http://source.android.com/tech/storage/ |
| // Create private mount namespace shared by all children |
| if (unshare(CLONE_NEWNS) == -1) { |
| PLOG(WARNING) << "Failed to unshare()"; |
| return false; |
| } |
| |
| // Mark rootfs as being a slave so that changes from default |
| // namespace only flow into our children. |
| if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) { |
| PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE"; |
| return false; |
| } |
| |
| // Create a staging tmpfs that is shared by our children; they will |
| // bind mount storage into their respective private namespaces, which |
| // are isolated from each other. |
| const char* target_base = getenv("EMULATED_STORAGE_TARGET"); |
| if (target_base != NULL) { |
| if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV, |
| "uid=0,gid=1028,mode=0751") == -1) { |
| LOG(WARNING) << "Failed to mount tmpfs to " << target_base; |
| return false; |
| } |
| } |
| |
| return true; |
| #else |
| UNIMPLEMENTED(FATAL); |
| return false; |
| #endif |
| } |
| |
| void Runtime::DidForkFromZygote() { |
| is_zygote_ = false; |
| |
| // Create the thread pool. |
| heap_->CreateThreadPool(); |
| |
| StartSignalCatcher(); |
| |
| // Start the JDWP thread. If the command-line debugger flags specified "suspend=y", |
| // this will pause the runtime, so we probably want this to come last. |
| Dbg::StartJdwp(); |
| } |
| |
| void Runtime::StartSignalCatcher() { |
| if (!is_zygote_) { |
| signal_catcher_ = new SignalCatcher(stack_trace_file_); |
| } |
| } |
| |
| bool Runtime::IsShuttingDown(Thread* self) { |
| MutexLock mu(self, *Locks::runtime_shutdown_lock_); |
| return IsShuttingDownLocked(); |
| } |
| |
| void Runtime::StartDaemonThreads() { |
| VLOG(startup) << "Runtime::StartDaemonThreads entering"; |
| |
| Thread* self = Thread::Current(); |
| |
| // Must be in the kNative state for calling native methods. |
| CHECK_EQ(self->GetState(), kNative); |
| |
| JNIEnv* env = self->GetJniEnv(); |
| env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons, |
| WellKnownClasses::java_lang_Daemons_start); |
| if (env->ExceptionCheck()) { |
| env->ExceptionDescribe(); |
| LOG(FATAL) << "Error starting java.lang.Daemons"; |
| } |
| |
| VLOG(startup) << "Runtime::StartDaemonThreads exiting"; |
| } |
| |
| static bool OpenDexFilesFromImage(const std::vector<std::string>& dex_filenames, |
| const std::string& image_location, |
| std::vector<const DexFile*>& dex_files, |
| size_t* failures) { |
| std::string system_filename; |
| bool has_system = false; |
| std::string cache_filename_unused; |
| bool dalvik_cache_exists_unused; |
| bool has_cache_unused; |
| bool found_image = gc::space::ImageSpace::FindImageFilename(image_location.c_str(), |
| kRuntimeISA, |
| &system_filename, |
| &has_system, |
| &cache_filename_unused, |
| &dalvik_cache_exists_unused, |
| &has_cache_unused); |
| *failures = 0; |
| if (!found_image || !has_system) { |
| return false; |
| } |
| std::string error_msg; |
| // We are falling back to non-executable use of the oat file because patching failed, presumably |
| // due to lack of space. |
| std::string oat_filename = ImageHeader::GetOatLocationFromImageLocation(system_filename.c_str()); |
| std::string oat_location = ImageHeader::GetOatLocationFromImageLocation(image_location.c_str()); |
| std::unique_ptr<File> file(OS::OpenFileForReading(oat_filename.c_str())); |
| if (file.get() == nullptr) { |
| return false; |
| } |
| std::unique_ptr<ElfFile> elf_file(ElfFile::Open(file.release(), false, false, &error_msg)); |
| if (elf_file.get() == nullptr) { |
| return false; |
| } |
| std::unique_ptr<OatFile> oat_file(OatFile::OpenWithElfFile(elf_file.release(), oat_location, |
| &error_msg)); |
| if (oat_file.get() == nullptr) { |
| LOG(INFO) << "Unable to use '" << oat_filename << "' because " << error_msg; |
| return false; |
| } |
| |
| std::vector<const OatFile::OatDexFile*> oat_dex_files = oat_file->GetOatDexFiles(); |
| for (size_t i = 0; i < oat_dex_files.size(); i++) { |
| const OatFile::OatDexFile* oat_dex_file = oat_dex_files[i]; |
| if (oat_dex_file == nullptr) { |
| *failures += 1; |
| continue; |
| } |
| const DexFile* dex_file = oat_dex_file->OpenDexFile(&error_msg); |
| if (dex_file == nullptr) { |
| *failures += 1; |
| } else { |
| dex_files.push_back(dex_file); |
| } |
| } |
| Runtime::Current()->GetClassLinker()->RegisterOatFile(oat_file.release()); |
| return true; |
| } |
| |
| |
| static size_t OpenDexFiles(const std::vector<std::string>& dex_filenames, |
| const std::string& image_location, |
| std::vector<const DexFile*>& dex_files) { |
| size_t failure_count = 0; |
| if (!image_location.empty() && OpenDexFilesFromImage(dex_filenames, image_location, dex_files, |
| &failure_count)) { |
| return failure_count; |
| } |
| failure_count = 0; |
| for (size_t i = 0; i < dex_filenames.size(); i++) { |
| const char* dex_filename = dex_filenames[i].c_str(); |
| std::string error_msg; |
| if (!OS::FileExists(dex_filename)) { |
| LOG(WARNING) << "Skipping non-existent dex file '" << dex_filename << "'"; |
| continue; |
| } |
| if (!DexFile::Open(dex_filename, dex_filename, &error_msg, &dex_files)) { |
| LOG(WARNING) << "Failed to open .dex from file '" << dex_filename << "': " << error_msg; |
| ++failure_count; |
| } |
| } |
| return failure_count; |
| } |
| |
| bool Runtime::Init(const RuntimeOptions& raw_options, bool ignore_unrecognized) { |
| CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize); |
| |
| std::unique_ptr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized)); |
| if (options.get() == NULL) { |
| LOG(ERROR) << "Failed to parse options"; |
| return false; |
| } |
| VLOG(startup) << "Runtime::Init -verbose:startup enabled"; |
| |
| QuasiAtomic::Startup(); |
| |
| Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_); |
| |
| boot_class_path_string_ = options->boot_class_path_string_; |
| class_path_string_ = options->class_path_string_; |
| properties_ = options->properties_; |
| |
| compiler_callbacks_ = options->compiler_callbacks_; |
| patchoat_executable_ = options->patchoat_executable_; |
| must_relocate_ = options->must_relocate_; |
| is_zygote_ = options->is_zygote_; |
| is_explicit_gc_disabled_ = options->is_explicit_gc_disabled_; |
| dex2oat_enabled_ = options->dex2oat_enabled_; |
| image_dex2oat_enabled_ = options->image_dex2oat_enabled_; |
| |
| vfprintf_ = options->hook_vfprintf_; |
| exit_ = options->hook_exit_; |
| abort_ = options->hook_abort_; |
| |
| default_stack_size_ = options->stack_size_; |
| stack_trace_file_ = options->stack_trace_file_; |
| |
| compiler_executable_ = options->compiler_executable_; |
| compiler_options_ = options->compiler_options_; |
| image_compiler_options_ = options->image_compiler_options_; |
| |
| max_spins_before_thin_lock_inflation_ = options->max_spins_before_thin_lock_inflation_; |
| |
| monitor_list_ = new MonitorList; |
| monitor_pool_ = MonitorPool::Create(); |
| thread_list_ = new ThreadList; |
| intern_table_ = new InternTable; |
| |
| verify_ = options->verify_; |
| |
| if (options->interpreter_only_) { |
| GetInstrumentation()->ForceInterpretOnly(); |
| } |
| |
| heap_ = new gc::Heap(options->heap_initial_size_, |
| options->heap_growth_limit_, |
| options->heap_min_free_, |
| options->heap_max_free_, |
| options->heap_target_utilization_, |
| options->foreground_heap_growth_multiplier_, |
| options->heap_maximum_size_, |
| options->heap_non_moving_space_capacity_, |
| options->image_, |
| options->image_isa_, |
| options->collector_type_, |
| options->background_collector_type_, |
| options->parallel_gc_threads_, |
| options->conc_gc_threads_, |
| options->low_memory_mode_, |
| options->long_pause_log_threshold_, |
| options->long_gc_log_threshold_, |
| options->ignore_max_footprint_, |
| options->use_tlab_, |
| options->verify_pre_gc_heap_, |
| options->verify_pre_sweeping_heap_, |
| options->verify_post_gc_heap_, |
| options->verify_pre_gc_rosalloc_, |
| options->verify_pre_sweeping_rosalloc_, |
| options->verify_post_gc_rosalloc_, |
| options->use_homogeneous_space_compaction_for_oom_, |
| options->min_interval_homogeneous_space_compaction_by_oom_); |
| |
| dump_gc_performance_on_shutdown_ = options->dump_gc_performance_on_shutdown_; |
| |
| BlockSignals(); |
| InitPlatformSignalHandlers(); |
| |
| // Change the implicit checks flags based on runtime architecture. |
| switch (kRuntimeISA) { |
| case kArm: |
| case kThumb2: |
| case kX86: |
| case kArm64: |
| case kX86_64: |
| implicit_null_checks_ = true; |
| implicit_so_checks_ = true; |
| break; |
| default: |
| // Keep the defaults. |
| break; |
| } |
| |
| if (implicit_null_checks_ || implicit_so_checks_ || implicit_suspend_checks_) { |
| fault_manager.Init(); |
| |
| // These need to be in a specific order. The null point check handler must be |
| // after the suspend check and stack overflow check handlers. |
| if (implicit_suspend_checks_) { |
| suspend_handler_ = new SuspensionHandler(&fault_manager); |
| } |
| |
| if (implicit_so_checks_) { |
| stack_overflow_handler_ = new StackOverflowHandler(&fault_manager); |
| } |
| |
| if (implicit_null_checks_) { |
| null_pointer_handler_ = new NullPointerHandler(&fault_manager); |
| } |
| |
| if (kEnableJavaStackTraceHandler) { |
| new JavaStackTraceHandler(&fault_manager); |
| } |
| } |
| |
| java_vm_ = new JavaVMExt(this, options.get()); |
| |
| Thread::Startup(); |
| |
| // ClassLinker needs an attached thread, but we can't fully attach a thread without creating |
| // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main |
| // thread, we do not get a java peer. |
| Thread* self = Thread::Attach("main", false, NULL, false); |
| CHECK_EQ(self->GetThreadId(), ThreadList::kMainThreadId); |
| CHECK(self != NULL); |
| |
| // Set us to runnable so tools using a runtime can allocate and GC by default |
| self->TransitionFromSuspendedToRunnable(); |
| |
| // Now we're attached, we can take the heap locks and validate the heap. |
| GetHeap()->EnableObjectValidation(); |
| |
| CHECK_GE(GetHeap()->GetContinuousSpaces().size(), 1U); |
| class_linker_ = new ClassLinker(intern_table_); |
| if (GetHeap()->HasImageSpace()) { |
| class_linker_->InitFromImage(); |
| if (kIsDebugBuild) { |
| GetHeap()->GetImageSpace()->VerifyImageAllocations(); |
| } |
| } else if (!IsCompiler() || !image_dex2oat_enabled_) { |
| std::vector<std::string> dex_filenames; |
| Split(boot_class_path_string_, ':', dex_filenames); |
| std::vector<const DexFile*> boot_class_path; |
| OpenDexFiles(dex_filenames, options->image_, boot_class_path); |
| class_linker_->InitWithoutImage(boot_class_path); |
| // TODO: Should we move the following to InitWithoutImage? |
| SetInstructionSet(kRuntimeISA); |
| for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { |
| Runtime::CalleeSaveType type = Runtime::CalleeSaveType(i); |
| if (!HasCalleeSaveMethod(type)) { |
| SetCalleeSaveMethod(CreateCalleeSaveMethod(type), type); |
| } |
| } |
| } else { |
| CHECK(options->boot_class_path_ != NULL); |
| CHECK_NE(options->boot_class_path_->size(), 0U); |
| class_linker_->InitWithoutImage(*options->boot_class_path_); |
| } |
| CHECK(class_linker_ != NULL); |
| verifier::MethodVerifier::Init(); |
| |
| method_trace_ = options->method_trace_; |
| method_trace_file_ = options->method_trace_file_; |
| method_trace_file_size_ = options->method_trace_file_size_; |
| |
| profile_output_filename_ = options->profile_output_filename_; |
| profiler_options_ = options->profiler_options_; |
| |
| // TODO: move this to just be an Trace::Start argument |
| Trace::SetDefaultClockSource(options->profile_clock_source_); |
| |
| if (options->method_trace_) { |
| ScopedThreadStateChange tsc(self, kWaitingForMethodTracingStart); |
| Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0, |
| false, false, 0); |
| } |
| |
| // Pre-allocate an OutOfMemoryError for the double-OOME case. |
| self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;", |
| "OutOfMemoryError thrown while trying to throw OutOfMemoryError; " |
| "no stack available"); |
| pre_allocated_OutOfMemoryError_ = GcRoot<mirror::Throwable>(self->GetException(NULL)); |
| self->ClearException(); |
| |
| // Look for a native bridge. |
| native_bridge_library_filename_ = options->native_bridge_library_filename_; |
| android::SetupNativeBridge(native_bridge_library_filename_.c_str(), &native_bridge_art_callbacks_); |
| VLOG(startup) << "Runtime::Setup native bridge library: " |
| << (native_bridge_library_filename_.empty() ? |
| "(empty)" : native_bridge_library_filename_); |
| |
| VLOG(startup) << "Runtime::Init exiting"; |
| return true; |
| } |
| |
| void Runtime::InitNativeMethods() { |
| VLOG(startup) << "Runtime::InitNativeMethods entering"; |
| Thread* self = Thread::Current(); |
| JNIEnv* env = self->GetJniEnv(); |
| |
| // Must be in the kNative state for calling native methods (JNI_OnLoad code). |
| CHECK_EQ(self->GetState(), kNative); |
| |
| // First set up JniConstants, which is used by both the runtime's built-in native |
| // methods and libcore. |
| JniConstants::init(env); |
| WellKnownClasses::Init(env); |
| |
| // Then set up the native methods provided by the runtime itself. |
| RegisterRuntimeNativeMethods(env); |
| |
| // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad. |
| // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's |
| // the library that implements System.loadLibrary! |
| { |
| std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore")); |
| std::string reason; |
| if (!instance_->java_vm_->LoadNativeLibrary(env, mapped_name, nullptr, &reason)) { |
| LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason; |
| } |
| } |
| |
| // Initialize well known classes that may invoke runtime native methods. |
| WellKnownClasses::LateInit(env); |
| |
| VLOG(startup) << "Runtime::InitNativeMethods exiting"; |
| } |
| |
| void Runtime::InitThreadGroups(Thread* self) { |
| JNIEnvExt* env = self->GetJniEnv(); |
| ScopedJniEnvLocalRefState env_state(env); |
| main_thread_group_ = |
| env->NewGlobalRef(env->GetStaticObjectField( |
| WellKnownClasses::java_lang_ThreadGroup, |
| WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup)); |
| CHECK(main_thread_group_ != NULL || IsCompiler()); |
| system_thread_group_ = |
| env->NewGlobalRef(env->GetStaticObjectField( |
| WellKnownClasses::java_lang_ThreadGroup, |
| WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup)); |
| CHECK(system_thread_group_ != NULL || IsCompiler()); |
| } |
| |
| jobject Runtime::GetMainThreadGroup() const { |
| CHECK(main_thread_group_ != NULL || IsCompiler()); |
| return main_thread_group_; |
| } |
| |
| jobject Runtime::GetSystemThreadGroup() const { |
| CHECK(system_thread_group_ != NULL || IsCompiler()); |
| return system_thread_group_; |
| } |
| |
| jobject Runtime::GetSystemClassLoader() const { |
| CHECK(system_class_loader_ != NULL || IsCompiler()); |
| return system_class_loader_; |
| } |
| |
| void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) { |
| #define REGISTER(FN) extern void FN(JNIEnv*); FN(env) |
| // Register Throwable first so that registration of other native methods can throw exceptions |
| REGISTER(register_java_lang_Throwable); |
| REGISTER(register_dalvik_system_DexFile); |
| REGISTER(register_dalvik_system_VMDebug); |
| REGISTER(register_dalvik_system_VMRuntime); |
| REGISTER(register_dalvik_system_VMStack); |
| REGISTER(register_dalvik_system_ZygoteHooks); |
| REGISTER(register_java_lang_Class); |
| REGISTER(register_java_lang_DexCache); |
| REGISTER(register_java_lang_Object); |
| REGISTER(register_java_lang_Runtime); |
| REGISTER(register_java_lang_String); |
| REGISTER(register_java_lang_System); |
| REGISTER(register_java_lang_Thread); |
| REGISTER(register_java_lang_VMClassLoader); |
| REGISTER(register_java_lang_ref_Reference); |
| REGISTER(register_java_lang_reflect_Array); |
| REGISTER(register_java_lang_reflect_Constructor); |
| REGISTER(register_java_lang_reflect_Field); |
| REGISTER(register_java_lang_reflect_Method); |
| REGISTER(register_java_lang_reflect_Proxy); |
| REGISTER(register_java_util_concurrent_atomic_AtomicLong); |
| REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer); |
| REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal); |
| REGISTER(register_sun_misc_Unsafe); |
| #undef REGISTER |
| } |
| |
| void Runtime::DumpForSigQuit(std::ostream& os) { |
| GetClassLinker()->DumpForSigQuit(os); |
| GetInternTable()->DumpForSigQuit(os); |
| GetJavaVM()->DumpForSigQuit(os); |
| GetHeap()->DumpForSigQuit(os); |
| TrackedAllocators::Dump(os); |
| os << "\n"; |
| |
| thread_list_->DumpForSigQuit(os); |
| BaseMutex::DumpAll(os); |
| } |
| |
| void Runtime::DumpLockHolders(std::ostream& os) { |
| uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid(); |
| pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner(); |
| pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner(); |
| pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner(); |
| if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) { |
| os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n" |
| << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n" |
| << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n" |
| << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n"; |
| } |
| } |
| |
| void Runtime::SetStatsEnabled(bool new_state) { |
| if (new_state == true) { |
| GetStats()->Clear(~0); |
| // TODO: wouldn't it make more sense to clear _all_ threads' stats? |
| Thread::Current()->GetStats()->Clear(~0); |
| GetInstrumentation()->InstrumentQuickAllocEntryPoints(); |
| } else { |
| GetInstrumentation()->UninstrumentQuickAllocEntryPoints(); |
| } |
| stats_enabled_ = new_state; |
| } |
| |
| void Runtime::ResetStats(int kinds) { |
| GetStats()->Clear(kinds & 0xffff); |
| // TODO: wouldn't it make more sense to clear _all_ threads' stats? |
| Thread::Current()->GetStats()->Clear(kinds >> 16); |
| } |
| |
| int32_t Runtime::GetStat(int kind) { |
| RuntimeStats* stats; |
| if (kind < (1<<16)) { |
| stats = GetStats(); |
| } else { |
| stats = Thread::Current()->GetStats(); |
| kind >>= 16; |
| } |
| switch (kind) { |
| case KIND_ALLOCATED_OBJECTS: |
| return stats->allocated_objects; |
| case KIND_ALLOCATED_BYTES: |
| return stats->allocated_bytes; |
| case KIND_FREED_OBJECTS: |
| return stats->freed_objects; |
| case KIND_FREED_BYTES: |
| return stats->freed_bytes; |
| case KIND_GC_INVOCATIONS: |
| return stats->gc_for_alloc_count; |
| case KIND_CLASS_INIT_COUNT: |
| return stats->class_init_count; |
| case KIND_CLASS_INIT_TIME: |
| // Convert ns to us, reduce to 32 bits. |
| return static_cast<int>(stats->class_init_time_ns / 1000); |
| case KIND_EXT_ALLOCATED_OBJECTS: |
| case KIND_EXT_ALLOCATED_BYTES: |
| case KIND_EXT_FREED_OBJECTS: |
| case KIND_EXT_FREED_BYTES: |
| return 0; // backward compatibility |
| default: |
| LOG(FATAL) << "Unknown statistic " << kind; |
| return -1; // unreachable |
| } |
| } |
| |
| void Runtime::BlockSignals() { |
| SignalSet signals; |
| signals.Add(SIGPIPE); |
| // SIGQUIT is used to dump the runtime's state (including stack traces). |
| signals.Add(SIGQUIT); |
| // SIGUSR1 is used to initiate a GC. |
| signals.Add(SIGUSR1); |
| signals.Block(); |
| } |
| |
| bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group, |
| bool create_peer) { |
| return Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL; |
| } |
| |
| void Runtime::DetachCurrentThread() { |
| Thread* self = Thread::Current(); |
| if (self == NULL) { |
| LOG(FATAL) << "attempting to detach thread that is not attached"; |
| } |
| if (self->HasManagedStack()) { |
| LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code"; |
| } |
| thread_list_->Unregister(self); |
| } |
| |
| mirror::Throwable* Runtime::GetPreAllocatedOutOfMemoryError() { |
| mirror::Throwable* oome = pre_allocated_OutOfMemoryError_.Read(); |
| if (oome == NULL) { |
| LOG(ERROR) << "Failed to return pre-allocated OOME"; |
| } |
| return oome; |
| } |
| |
| void Runtime::VisitConstantRoots(RootCallback* callback, void* arg) { |
| // Visit the classes held as static in mirror classes, these can be visited concurrently and only |
| // need to be visited once per GC since they never change. |
| mirror::ArtField::VisitRoots(callback, arg); |
| mirror::ArtMethod::VisitRoots(callback, arg); |
| mirror::Class::VisitRoots(callback, arg); |
| mirror::Reference::VisitRoots(callback, arg); |
| mirror::StackTraceElement::VisitRoots(callback, arg); |
| mirror::String::VisitRoots(callback, arg); |
| mirror::Throwable::VisitRoots(callback, arg); |
| // Visit all the primitive array types classes. |
| mirror::PrimitiveArray<uint8_t>::VisitRoots(callback, arg); // BooleanArray |
| mirror::PrimitiveArray<int8_t>::VisitRoots(callback, arg); // ByteArray |
| mirror::PrimitiveArray<uint16_t>::VisitRoots(callback, arg); // CharArray |
| mirror::PrimitiveArray<double>::VisitRoots(callback, arg); // DoubleArray |
| mirror::PrimitiveArray<float>::VisitRoots(callback, arg); // FloatArray |
| mirror::PrimitiveArray<int32_t>::VisitRoots(callback, arg); // IntArray |
| mirror::PrimitiveArray<int64_t>::VisitRoots(callback, arg); // LongArray |
| mirror::PrimitiveArray<int16_t>::VisitRoots(callback, arg); // ShortArray |
| } |
| |
| void Runtime::VisitConcurrentRoots(RootCallback* callback, void* arg, VisitRootFlags flags) { |
| intern_table_->VisitRoots(callback, arg, flags); |
| class_linker_->VisitRoots(callback, arg, flags); |
| if ((flags & kVisitRootFlagNewRoots) == 0) { |
| // Guaranteed to have no new roots in the constant roots. |
| VisitConstantRoots(callback, arg); |
| } |
| } |
| |
| void Runtime::VisitNonThreadRoots(RootCallback* callback, void* arg) { |
| java_vm_->VisitRoots(callback, arg); |
| if (!pre_allocated_OutOfMemoryError_.IsNull()) { |
| pre_allocated_OutOfMemoryError_.VisitRoot(callback, arg, 0, kRootVMInternal); |
| DCHECK(!pre_allocated_OutOfMemoryError_.IsNull()); |
| } |
| resolution_method_.VisitRoot(callback, arg, 0, kRootVMInternal); |
| DCHECK(!resolution_method_.IsNull()); |
| if (HasImtConflictMethod()) { |
| imt_conflict_method_.VisitRoot(callback, arg, 0, kRootVMInternal); |
| } |
| if (HasDefaultImt()) { |
| default_imt_.VisitRoot(callback, arg, 0, kRootVMInternal); |
| } |
| for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { |
| if (!callee_save_methods_[i].IsNull()) { |
| callee_save_methods_[i].VisitRoot(callback, arg, 0, kRootVMInternal); |
| } |
| } |
| { |
| MutexLock mu(Thread::Current(), method_verifier_lock_); |
| for (verifier::MethodVerifier* verifier : method_verifiers_) { |
| verifier->VisitRoots(callback, arg); |
| } |
| } |
| if (preinitialization_transaction_ != nullptr) { |
| preinitialization_transaction_->VisitRoots(callback, arg); |
| } |
| instrumentation_.VisitRoots(callback, arg); |
| } |
| |
| void Runtime::VisitNonConcurrentRoots(RootCallback* callback, void* arg) { |
| thread_list_->VisitRoots(callback, arg); |
| VisitNonThreadRoots(callback, arg); |
| } |
| |
| void Runtime::VisitRoots(RootCallback* callback, void* arg, VisitRootFlags flags) { |
| VisitNonConcurrentRoots(callback, arg); |
| VisitConcurrentRoots(callback, arg, flags); |
| } |
| |
| mirror::ObjectArray<mirror::ArtMethod>* Runtime::CreateDefaultImt(ClassLinker* cl) { |
| Thread* self = Thread::Current(); |
| StackHandleScope<1> hs(self); |
| Handle<mirror::ObjectArray<mirror::ArtMethod>> imtable( |
| hs.NewHandle(cl->AllocArtMethodArray(self, 64))); |
| mirror::ArtMethod* imt_conflict_method = Runtime::Current()->GetImtConflictMethod(); |
| for (size_t i = 0; i < static_cast<size_t>(imtable->GetLength()); i++) { |
| imtable->Set<false>(i, imt_conflict_method); |
| } |
| return imtable.Get(); |
| } |
| |
| mirror::ArtMethod* Runtime::CreateImtConflictMethod() { |
| Thread* self = Thread::Current(); |
| Runtime* runtime = Runtime::Current(); |
| ClassLinker* class_linker = runtime->GetClassLinker(); |
| StackHandleScope<1> hs(self); |
| Handle<mirror::ArtMethod> method(hs.NewHandle(class_linker->AllocArtMethod(self))); |
| method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod()); |
| // TODO: use a special method for imt conflict method saves. |
| method->SetDexMethodIndex(DexFile::kDexNoIndex); |
| // When compiling, the code pointer will get set later when the image is loaded. |
| if (runtime->IsCompiler()) { |
| method->SetEntryPointFromPortableCompiledCode(nullptr); |
| method->SetEntryPointFromQuickCompiledCode(nullptr); |
| } else { |
| method->SetEntryPointFromPortableCompiledCode(class_linker->GetPortableImtConflictTrampoline()); |
| method->SetEntryPointFromQuickCompiledCode(class_linker->GetQuickImtConflictTrampoline()); |
| } |
| return method.Get(); |
| } |
| |
| mirror::ArtMethod* Runtime::CreateResolutionMethod() { |
| Thread* self = Thread::Current(); |
| Runtime* runtime = Runtime::Current(); |
| ClassLinker* class_linker = runtime->GetClassLinker(); |
| StackHandleScope<1> hs(self); |
| Handle<mirror::ArtMethod> method(hs.NewHandle(class_linker->AllocArtMethod(self))); |
| method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod()); |
| // TODO: use a special method for resolution method saves |
| method->SetDexMethodIndex(DexFile::kDexNoIndex); |
| // When compiling, the code pointer will get set later when the image is loaded. |
| if (runtime->IsCompiler()) { |
| method->SetEntryPointFromPortableCompiledCode(nullptr); |
| method->SetEntryPointFromQuickCompiledCode(nullptr); |
| } else { |
| method->SetEntryPointFromPortableCompiledCode(class_linker->GetPortableResolutionTrampoline()); |
| method->SetEntryPointFromQuickCompiledCode(class_linker->GetQuickResolutionTrampoline()); |
| } |
| return method.Get(); |
| } |
| |
| mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(CalleeSaveType type) { |
| Thread* self = Thread::Current(); |
| Runtime* runtime = Runtime::Current(); |
| ClassLinker* class_linker = runtime->GetClassLinker(); |
| StackHandleScope<1> hs(self); |
| Handle<mirror::ArtMethod> method(hs.NewHandle(class_linker->AllocArtMethod(self))); |
| method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod()); |
| // TODO: use a special method for callee saves |
| method->SetDexMethodIndex(DexFile::kDexNoIndex); |
| method->SetEntryPointFromPortableCompiledCode(nullptr); |
| method->SetEntryPointFromQuickCompiledCode(nullptr); |
| DCHECK_NE(instruction_set_, kNone); |
| return method.Get(); |
| } |
| |
| void Runtime::DisallowNewSystemWeaks() { |
| monitor_list_->DisallowNewMonitors(); |
| intern_table_->DisallowNewInterns(); |
| java_vm_->DisallowNewWeakGlobals(); |
| } |
| |
| void Runtime::AllowNewSystemWeaks() { |
| monitor_list_->AllowNewMonitors(); |
| intern_table_->AllowNewInterns(); |
| java_vm_->AllowNewWeakGlobals(); |
| } |
| |
| void Runtime::SetInstructionSet(InstructionSet instruction_set) { |
| instruction_set_ = instruction_set; |
| if ((instruction_set_ == kThumb2) || (instruction_set_ == kArm)) { |
| for (int i = 0; i != kLastCalleeSaveType; ++i) { |
| CalleeSaveType type = static_cast<CalleeSaveType>(i); |
| callee_save_method_frame_infos_[i] = arm::ArmCalleeSaveMethodFrameInfo(type); |
| } |
| } else if (instruction_set_ == kMips) { |
| for (int i = 0; i != kLastCalleeSaveType; ++i) { |
| CalleeSaveType type = static_cast<CalleeSaveType>(i); |
| callee_save_method_frame_infos_[i] = mips::MipsCalleeSaveMethodFrameInfo(type); |
| } |
| } else if (instruction_set_ == kX86) { |
| for (int i = 0; i != kLastCalleeSaveType; ++i) { |
| CalleeSaveType type = static_cast<CalleeSaveType>(i); |
| callee_save_method_frame_infos_[i] = x86::X86CalleeSaveMethodFrameInfo(type); |
| } |
| } else if (instruction_set_ == kX86_64) { |
| for (int i = 0; i != kLastCalleeSaveType; ++i) { |
| CalleeSaveType type = static_cast<CalleeSaveType>(i); |
| callee_save_method_frame_infos_[i] = x86_64::X86_64CalleeSaveMethodFrameInfo(type); |
| } |
| } else if (instruction_set_ == kArm64) { |
| for (int i = 0; i != kLastCalleeSaveType; ++i) { |
| CalleeSaveType type = static_cast<CalleeSaveType>(i); |
| callee_save_method_frame_infos_[i] = arm64::Arm64CalleeSaveMethodFrameInfo(type); |
| } |
| } else { |
| UNIMPLEMENTED(FATAL) << instruction_set_; |
| } |
| } |
| |
| void Runtime::SetCalleeSaveMethod(mirror::ArtMethod* method, CalleeSaveType type) { |
| DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType)); |
| callee_save_methods_[type] = GcRoot<mirror::ArtMethod>(method); |
| } |
| |
| const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) { |
| if (class_loader == NULL) { |
| return GetClassLinker()->GetBootClassPath(); |
| } |
| CHECK(UseCompileTimeClassPath()); |
| CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader); |
| CHECK(it != compile_time_class_paths_.end()); |
| return it->second; |
| } |
| |
| void Runtime::SetCompileTimeClassPath(jobject class_loader, |
| std::vector<const DexFile*>& class_path) { |
| CHECK(!IsStarted()); |
| use_compile_time_class_path_ = true; |
| compile_time_class_paths_.Put(class_loader, class_path); |
| } |
| |
| void Runtime::AddMethodVerifier(verifier::MethodVerifier* verifier) { |
| DCHECK(verifier != nullptr); |
| MutexLock mu(Thread::Current(), method_verifier_lock_); |
| method_verifiers_.insert(verifier); |
| } |
| |
| void Runtime::RemoveMethodVerifier(verifier::MethodVerifier* verifier) { |
| DCHECK(verifier != nullptr); |
| MutexLock mu(Thread::Current(), method_verifier_lock_); |
| auto it = method_verifiers_.find(verifier); |
| CHECK(it != method_verifiers_.end()); |
| method_verifiers_.erase(it); |
| } |
| |
| void Runtime::StartProfiler(const char* profile_output_filename) { |
| profile_output_filename_ = profile_output_filename; |
| profiler_started_ = |
| BackgroundMethodSamplingProfiler::Start(profile_output_filename_, profiler_options_); |
| } |
| |
| // Transaction support. |
| void Runtime::EnterTransactionMode(Transaction* transaction) { |
| DCHECK(IsCompiler()); |
| DCHECK(transaction != nullptr); |
| DCHECK(!IsActiveTransaction()); |
| preinitialization_transaction_ = transaction; |
| } |
| |
| void Runtime::ExitTransactionMode() { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_ = nullptr; |
| } |
| |
| void Runtime::RecordWriteFieldBoolean(mirror::Object* obj, MemberOffset field_offset, |
| uint8_t value, bool is_volatile) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordWriteFieldBoolean(obj, field_offset, value, is_volatile); |
| } |
| |
| void Runtime::RecordWriteFieldByte(mirror::Object* obj, MemberOffset field_offset, |
| int8_t value, bool is_volatile) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordWriteFieldByte(obj, field_offset, value, is_volatile); |
| } |
| |
| void Runtime::RecordWriteFieldChar(mirror::Object* obj, MemberOffset field_offset, |
| uint16_t value, bool is_volatile) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordWriteFieldChar(obj, field_offset, value, is_volatile); |
| } |
| |
| void Runtime::RecordWriteFieldShort(mirror::Object* obj, MemberOffset field_offset, |
| int16_t value, bool is_volatile) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordWriteFieldShort(obj, field_offset, value, is_volatile); |
| } |
| |
| void Runtime::RecordWriteField32(mirror::Object* obj, MemberOffset field_offset, |
| uint32_t value, bool is_volatile) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordWriteField32(obj, field_offset, value, is_volatile); |
| } |
| |
| void Runtime::RecordWriteField64(mirror::Object* obj, MemberOffset field_offset, |
| uint64_t value, bool is_volatile) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordWriteField64(obj, field_offset, value, is_volatile); |
| } |
| |
| void Runtime::RecordWriteFieldReference(mirror::Object* obj, MemberOffset field_offset, |
| mirror::Object* value, bool is_volatile) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordWriteFieldReference(obj, field_offset, value, is_volatile); |
| } |
| |
| void Runtime::RecordWriteArray(mirror::Array* array, size_t index, uint64_t value) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordWriteArray(array, index, value); |
| } |
| |
| void Runtime::RecordStrongStringInsertion(mirror::String* s, uint32_t hash_code) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordStrongStringInsertion(s, hash_code); |
| } |
| |
| void Runtime::RecordWeakStringInsertion(mirror::String* s, uint32_t hash_code) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordWeakStringInsertion(s, hash_code); |
| } |
| |
| void Runtime::RecordStrongStringRemoval(mirror::String* s, uint32_t hash_code) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordStrongStringRemoval(s, hash_code); |
| } |
| |
| void Runtime::RecordWeakStringRemoval(mirror::String* s, uint32_t hash_code) const { |
| DCHECK(IsCompiler()); |
| DCHECK(IsActiveTransaction()); |
| preinitialization_transaction_->RecordWeakStringRemoval(s, hash_code); |
| } |
| |
| void Runtime::SetFaultMessage(const std::string& message) { |
| MutexLock mu(Thread::Current(), fault_message_lock_); |
| fault_message_ = message; |
| } |
| |
| void Runtime::AddCurrentRuntimeFeaturesAsDex2OatArguments(std::vector<std::string>* argv) |
| const { |
| if (GetInstrumentation()->InterpretOnly()) { |
| argv->push_back("--compiler-filter=interpret-only"); |
| } |
| |
| // Make the dex2oat instruction set match that of the launching runtime. If we have multiple |
| // architecture support, dex2oat may be compiled as a different instruction-set than that |
| // currently being executed. |
| std::string instruction_set("--instruction-set="); |
| instruction_set += GetInstructionSetString(kRuntimeISA); |
| argv->push_back(instruction_set); |
| |
| std::string features("--instruction-set-features="); |
| features += GetDefaultInstructionSetFeatures(); |
| argv->push_back(features); |
| } |
| |
| void Runtime::UpdateProfilerState(int state) { |
| VLOG(profiler) << "Profiler state updated to " << state; |
| } |
| } // namespace art |