runtime.cc revision 82558acbca3eae5b7e47748bcfb8070855266676
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "runtime.h" 18 19// sys/mount.h has to come before linux/fs.h due to redefinition of MS_RDONLY, MS_BIND, etc 20#include <sys/mount.h> 21#ifdef __linux__ 22#include <linux/fs.h> 23#endif 24 25#include <signal.h> 26#include <sys/syscall.h> 27#include <valgrind.h> 28 29#include <cstdio> 30#include <cstdlib> 31#include <limits> 32#include <memory> 33#include <vector> 34#include <fcntl.h> 35 36#include "arch/arm/quick_method_frame_info_arm.h" 37#include "arch/arm/registers_arm.h" 38#include "arch/arm64/quick_method_frame_info_arm64.h" 39#include "arch/arm64/registers_arm64.h" 40#include "arch/mips/quick_method_frame_info_mips.h" 41#include "arch/mips/registers_mips.h" 42#include "arch/x86/quick_method_frame_info_x86.h" 43#include "arch/x86/registers_x86.h" 44#include "arch/x86_64/quick_method_frame_info_x86_64.h" 45#include "arch/x86_64/registers_x86_64.h" 46#include "atomic.h" 47#include "class_linker.h" 48#include "debugger.h" 49#include "fault_handler.h" 50#include "gc/accounting/card_table-inl.h" 51#include "gc/heap.h" 52#include "gc/space/space.h" 53#include "image.h" 54#include "instrumentation.h" 55#include "intern_table.h" 56#include "jni_internal.h" 57#include "mirror/art_field-inl.h" 58#include "mirror/art_method-inl.h" 59#include "mirror/array.h" 60#include "mirror/class-inl.h" 61#include "mirror/class_loader.h" 62#include "mirror/stack_trace_element.h" 63#include "mirror/throwable.h" 64#include "monitor.h" 65#include "parsed_options.h" 66#include "oat_file.h" 67#include "quick/quick_method_frame_info.h" 68#include "reflection.h" 69#include "ScopedLocalRef.h" 70#include "scoped_thread_state_change.h" 71#include "signal_catcher.h" 72#include "signal_set.h" 73#include "handle_scope-inl.h" 74#include "thread.h" 75#include "thread_list.h" 76#include "trace.h" 77#include "transaction.h" 78#include "profiler.h" 79#include "verifier/method_verifier.h" 80#include "well_known_classes.h" 81 82#include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art. 83 84#ifdef HAVE_ANDROID_OS 85#include "cutils/properties.h" 86#endif 87 88namespace art { 89 90static constexpr bool kEnableJavaStackTraceHandler = true; 91const char* Runtime::kDefaultInstructionSetFeatures = 92 STRINGIFY(ART_DEFAULT_INSTRUCTION_SET_FEATURES); 93Runtime* Runtime::instance_ = NULL; 94 95Runtime::Runtime() 96 : pre_allocated_OutOfMemoryError_(nullptr), 97 resolution_method_(nullptr), 98 imt_conflict_method_(nullptr), 99 default_imt_(nullptr), 100 instruction_set_(kNone), 101 compiler_callbacks_(nullptr), 102 is_zygote_(false), 103 is_concurrent_gc_enabled_(true), 104 is_explicit_gc_disabled_(false), 105 default_stack_size_(0), 106 heap_(nullptr), 107 max_spins_before_thin_lock_inflation_(Monitor::kDefaultMaxSpinsBeforeThinLockInflation), 108 monitor_list_(nullptr), 109 monitor_pool_(nullptr), 110 thread_list_(nullptr), 111 intern_table_(nullptr), 112 class_linker_(nullptr), 113 signal_catcher_(nullptr), 114 java_vm_(nullptr), 115 fault_message_lock_("Fault message lock"), 116 fault_message_(""), 117 method_verifier_lock_("Method verifiers lock"), 118 threads_being_born_(0), 119 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)), 120 shutting_down_(false), 121 shutting_down_started_(false), 122 started_(false), 123 finished_starting_(false), 124 vfprintf_(nullptr), 125 exit_(nullptr), 126 abort_(nullptr), 127 stats_enabled_(false), 128 running_on_valgrind_(RUNNING_ON_VALGRIND > 0), 129 profiler_started_(false), 130 method_trace_(false), 131 method_trace_file_size_(0), 132 instrumentation_(), 133 use_compile_time_class_path_(false), 134 main_thread_group_(nullptr), 135 system_thread_group_(nullptr), 136 system_class_loader_(nullptr), 137 dump_gc_performance_on_shutdown_(false), 138 preinitialization_transaction_(nullptr), 139 null_pointer_handler_(nullptr), 140 suspend_handler_(nullptr), 141 stack_overflow_handler_(nullptr), 142 verify_(false), 143 target_sdk_version_(0), 144 implicit_null_checks_(false), 145 implicit_so_checks_(false), 146 implicit_suspend_checks_(false) { 147 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { 148 callee_save_methods_[i] = nullptr; 149 } 150} 151 152Runtime::~Runtime() { 153 if (method_trace_ && Thread::Current() == nullptr) { 154 // We need a current thread to shutdown method tracing: re-attach it now. 155 JNIEnv* unused_env; 156 if (GetJavaVM()->AttachCurrentThread(&unused_env, nullptr) != JNI_OK) { 157 LOG(ERROR) << "Could not attach current thread before runtime shutdown."; 158 } 159 } 160 if (dump_gc_performance_on_shutdown_) { 161 // This can't be called from the Heap destructor below because it 162 // could call RosAlloc::InspectAll() which needs the thread_list 163 // to be still alive. 164 heap_->DumpGcPerformanceInfo(LOG(INFO)); 165 } 166 167 Thread* self = Thread::Current(); 168 { 169 MutexLock mu(self, *Locks::runtime_shutdown_lock_); 170 shutting_down_started_ = true; 171 while (threads_being_born_ > 0) { 172 shutdown_cond_->Wait(self); 173 } 174 shutting_down_ = true; 175 } 176 // Shut down background profiler before the runtime exits. 177 if (profiler_started_) { 178 BackgroundMethodSamplingProfiler::Shutdown(); 179 } 180 181 Trace::Shutdown(); 182 183 // Make sure to let the GC complete if it is running. 184 heap_->WaitForGcToComplete(gc::kGcCauseBackground, self); 185 heap_->DeleteThreadPool(); 186 187 // Make sure our internal threads are dead before we start tearing down things they're using. 188 Dbg::StopJdwp(); 189 delete signal_catcher_; 190 191 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended. 192 delete thread_list_; 193 delete monitor_list_; 194 delete monitor_pool_; 195 delete class_linker_; 196 delete heap_; 197 delete intern_table_; 198 delete java_vm_; 199 Thread::Shutdown(); 200 QuasiAtomic::Shutdown(); 201 verifier::MethodVerifier::Shutdown(); 202 // TODO: acquire a static mutex on Runtime to avoid racing. 203 CHECK(instance_ == nullptr || instance_ == this); 204 instance_ = nullptr; 205 206 delete null_pointer_handler_; 207 delete suspend_handler_; 208 delete stack_overflow_handler_; 209} 210 211struct AbortState { 212 void Dump(std::ostream& os) NO_THREAD_SAFETY_ANALYSIS { 213 if (gAborting > 1) { 214 os << "Runtime aborting --- recursively, so no thread-specific detail!\n"; 215 return; 216 } 217 gAborting++; 218 os << "Runtime aborting...\n"; 219 if (Runtime::Current() == NULL) { 220 os << "(Runtime does not yet exist!)\n"; 221 return; 222 } 223 Thread* self = Thread::Current(); 224 if (self == nullptr) { 225 os << "(Aborting thread was not attached to runtime!)\n"; 226 DumpKernelStack(os, GetTid(), " kernel: ", false); 227 DumpNativeStack(os, GetTid(), " native: ", nullptr); 228 } else { 229 os << "Aborting thread:\n"; 230 if (Locks::mutator_lock_->IsExclusiveHeld(self) || Locks::mutator_lock_->IsSharedHeld(self)) { 231 DumpThread(os, self); 232 } else { 233 if (Locks::mutator_lock_->SharedTryLock(self)) { 234 DumpThread(os, self); 235 Locks::mutator_lock_->SharedUnlock(self); 236 } 237 } 238 } 239 DumpAllThreads(os, self); 240 } 241 242 void DumpThread(std::ostream& os, Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 243 self->Dump(os); 244 if (self->IsExceptionPending()) { 245 ThrowLocation throw_location; 246 mirror::Throwable* exception = self->GetException(&throw_location); 247 os << "Pending exception " << PrettyTypeOf(exception) 248 << " thrown by '" << throw_location.Dump() << "'\n" 249 << exception->Dump(); 250 } 251 } 252 253 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS { 254 Runtime* runtime = Runtime::Current(); 255 if (runtime != nullptr) { 256 ThreadList* thread_list = runtime->GetThreadList(); 257 if (thread_list != nullptr) { 258 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self); 259 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self); 260 if (!tll_already_held || !ml_already_held) { 261 os << "Dumping all threads without appropriate locks held:" 262 << (!tll_already_held ? " thread list lock" : "") 263 << (!ml_already_held ? " mutator lock" : "") 264 << "\n"; 265 } 266 os << "All threads:\n"; 267 thread_list->DumpLocked(os); 268 } 269 } 270 } 271}; 272 273void Runtime::Abort() { 274 gAborting++; // set before taking any locks 275 276 // Ensure that we don't have multiple threads trying to abort at once, 277 // which would result in significantly worse diagnostics. 278 MutexLock mu(Thread::Current(), *Locks::abort_lock_); 279 280 // Get any pending output out of the way. 281 fflush(NULL); 282 283 // Many people have difficulty distinguish aborts from crashes, 284 // so be explicit. 285 AbortState state; 286 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state); 287 288 // Call the abort hook if we have one. 289 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) { 290 LOG(INTERNAL_FATAL) << "Calling abort hook..."; 291 Runtime::Current()->abort_(); 292 // notreached 293 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!"; 294 } 295 296#if defined(__GLIBC__) 297 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3), 298 // which POSIX defines in terms of raise(3), which POSIX defines in terms 299 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through 300 // libpthread, which means the stacks we dump would be useless. Calling 301 // tgkill(2) directly avoids that. 302 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT); 303 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM? 304 // If not, we could use sigaction(3) before calling tgkill(2) and lose this call to exit(3). 305 exit(1); 306#else 307 abort(); 308#endif 309 // notreached 310} 311 312void Runtime::PreZygoteFork() { 313 heap_->PreZygoteFork(); 314} 315 316void Runtime::CallExitHook(jint status) { 317 if (exit_ != NULL) { 318 ScopedThreadStateChange tsc(Thread::Current(), kNative); 319 exit_(status); 320 LOG(WARNING) << "Exit hook returned instead of exiting!"; 321 } 322} 323 324void Runtime::SweepSystemWeaks(IsMarkedCallback* visitor, void* arg) { 325 GetInternTable()->SweepInternTableWeaks(visitor, arg); 326 GetMonitorList()->SweepMonitorList(visitor, arg); 327 GetJavaVM()->SweepJniWeakGlobals(visitor, arg); 328} 329 330bool Runtime::Create(const Options& options, bool ignore_unrecognized) { 331 // TODO: acquire a static mutex on Runtime to avoid racing. 332 if (Runtime::instance_ != NULL) { 333 return false; 334 } 335 InitLogging(NULL); // Calls Locks::Init() as a side effect. 336 instance_ = new Runtime; 337 if (!instance_->Init(options, ignore_unrecognized)) { 338 delete instance_; 339 instance_ = NULL; 340 return false; 341 } 342 return true; 343} 344 345jobject CreateSystemClassLoader() { 346 if (Runtime::Current()->UseCompileTimeClassPath()) { 347 return NULL; 348 } 349 350 ScopedObjectAccess soa(Thread::Current()); 351 ClassLinker* cl = Runtime::Current()->GetClassLinker(); 352 353 StackHandleScope<3> hs(soa.Self()); 354 Handle<mirror::Class> class_loader_class( 355 hs.NewHandle(soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader))); 356 CHECK(cl->EnsureInitialized(class_loader_class, true, true)); 357 358 mirror::ArtMethod* getSystemClassLoader = 359 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;"); 360 CHECK(getSystemClassLoader != NULL); 361 362 JValue result = InvokeWithJValues(soa, nullptr, soa.EncodeMethod(getSystemClassLoader), nullptr); 363 Handle<mirror::ClassLoader> class_loader( 364 hs.NewHandle(down_cast<mirror::ClassLoader*>(result.GetL()))); 365 CHECK(class_loader.Get() != nullptr); 366 JNIEnv* env = soa.Self()->GetJniEnv(); 367 ScopedLocalRef<jobject> system_class_loader(env, 368 soa.AddLocalReference<jobject>(class_loader.Get())); 369 CHECK(system_class_loader.get() != nullptr); 370 371 soa.Self()->SetClassLoaderOverride(class_loader.Get()); 372 373 Handle<mirror::Class> thread_class( 374 hs.NewHandle(soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread))); 375 CHECK(cl->EnsureInitialized(thread_class, true, true)); 376 377 mirror::ArtField* contextClassLoader = 378 thread_class->FindDeclaredInstanceField("contextClassLoader", "Ljava/lang/ClassLoader;"); 379 CHECK(contextClassLoader != NULL); 380 381 // We can't run in a transaction yet. 382 contextClassLoader->SetObject<false>(soa.Self()->GetPeer(), class_loader.Get()); 383 384 return env->NewGlobalRef(system_class_loader.get()); 385} 386 387std::string Runtime::GetCompilerExecutable() const { 388 if (!compiler_executable_.empty()) { 389 return compiler_executable_; 390 } 391 std::string compiler_executable(GetAndroidRoot()); 392 compiler_executable += (kIsDebugBuild ? "/bin/dex2oatd" : "/bin/dex2oat"); 393 return compiler_executable; 394} 395 396bool Runtime::Start() { 397 VLOG(startup) << "Runtime::Start entering"; 398 399 // Restore main thread state to kNative as expected by native code. 400 Thread* self = Thread::Current(); 401 self->TransitionFromRunnableToSuspended(kNative); 402 403 started_ = true; 404 405 // InitNativeMethods needs to be after started_ so that the classes 406 // it touches will have methods linked to the oat file if necessary. 407 InitNativeMethods(); 408 409 // Initialize well known thread group values that may be accessed threads while attaching. 410 InitThreadGroups(self); 411 412 Thread::FinishStartup(); 413 414 if (is_zygote_) { 415 if (!InitZygote()) { 416 return false; 417 } 418 } else { 419 DidForkFromZygote(); 420 } 421 422 StartDaemonThreads(); 423 424 system_class_loader_ = CreateSystemClassLoader(); 425 426 { 427 ScopedObjectAccess soa(self); 428 self->GetJniEnv()->locals.AssertEmpty(); 429 } 430 431 VLOG(startup) << "Runtime::Start exiting"; 432 finished_starting_ = true; 433 434 if (profiler_options_.IsEnabled() && !profile_output_filename_.empty()) { 435 // User has asked for a profile using -Xenable-profiler. 436 // Create the profile file if it doesn't exist. 437 int fd = open(profile_output_filename_.c_str(), O_RDWR|O_CREAT|O_EXCL, 0660); 438 if (fd >= 0) { 439 close(fd); 440 } else if (errno != EEXIST) { 441 LOG(INFO) << "Failed to access the profile file. Profiler disabled."; 442 return true; 443 } 444 StartProfiler(profile_output_filename_.c_str()); 445 } 446 447 return true; 448} 449 450void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) { 451 DCHECK_GT(threads_being_born_, 0U); 452 threads_being_born_--; 453 if (shutting_down_started_ && threads_being_born_ == 0) { 454 shutdown_cond_->Broadcast(Thread::Current()); 455 } 456} 457 458// Do zygote-mode-only initialization. 459bool Runtime::InitZygote() { 460#ifdef __linux__ 461 // zygote goes into its own process group 462 setpgid(0, 0); 463 464 // See storage config details at http://source.android.com/tech/storage/ 465 // Create private mount namespace shared by all children 466 if (unshare(CLONE_NEWNS) == -1) { 467 PLOG(WARNING) << "Failed to unshare()"; 468 return false; 469 } 470 471 // Mark rootfs as being a slave so that changes from default 472 // namespace only flow into our children. 473 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) { 474 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE"; 475 return false; 476 } 477 478 // Create a staging tmpfs that is shared by our children; they will 479 // bind mount storage into their respective private namespaces, which 480 // are isolated from each other. 481 const char* target_base = getenv("EMULATED_STORAGE_TARGET"); 482 if (target_base != NULL) { 483 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV, 484 "uid=0,gid=1028,mode=0751") == -1) { 485 LOG(WARNING) << "Failed to mount tmpfs to " << target_base; 486 return false; 487 } 488 } 489 490 return true; 491#else 492 UNIMPLEMENTED(FATAL); 493 return false; 494#endif 495} 496 497void Runtime::DidForkFromZygote() { 498 is_zygote_ = false; 499 500 // Create the thread pool. 501 heap_->CreateThreadPool(); 502 503 StartSignalCatcher(); 504 505 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y", 506 // this will pause the runtime, so we probably want this to come last. 507 Dbg::StartJdwp(); 508} 509 510void Runtime::StartSignalCatcher() { 511 if (!is_zygote_) { 512 signal_catcher_ = new SignalCatcher(stack_trace_file_); 513 } 514} 515 516bool Runtime::IsShuttingDown(Thread* self) { 517 MutexLock mu(self, *Locks::runtime_shutdown_lock_); 518 return IsShuttingDownLocked(); 519} 520 521void Runtime::StartDaemonThreads() { 522 VLOG(startup) << "Runtime::StartDaemonThreads entering"; 523 524 Thread* self = Thread::Current(); 525 526 // Must be in the kNative state for calling native methods. 527 CHECK_EQ(self->GetState(), kNative); 528 529 JNIEnv* env = self->GetJniEnv(); 530 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons, 531 WellKnownClasses::java_lang_Daemons_start); 532 if (env->ExceptionCheck()) { 533 env->ExceptionDescribe(); 534 LOG(FATAL) << "Error starting java.lang.Daemons"; 535 } 536 537 VLOG(startup) << "Runtime::StartDaemonThreads exiting"; 538} 539 540bool Runtime::Init(const Options& raw_options, bool ignore_unrecognized) { 541 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize); 542 543 std::unique_ptr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized)); 544 if (options.get() == NULL) { 545 LOG(ERROR) << "Failed to parse options"; 546 return false; 547 } 548 VLOG(startup) << "Runtime::Init -verbose:startup enabled"; 549 550 QuasiAtomic::Startup(); 551 552 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_); 553 554 boot_class_path_string_ = options->boot_class_path_string_; 555 class_path_string_ = options->class_path_string_; 556 properties_ = options->properties_; 557 558 compiler_callbacks_ = options->compiler_callbacks_; 559 is_zygote_ = options->is_zygote_; 560 is_explicit_gc_disabled_ = options->is_explicit_gc_disabled_; 561 562 vfprintf_ = options->hook_vfprintf_; 563 exit_ = options->hook_exit_; 564 abort_ = options->hook_abort_; 565 566 default_stack_size_ = options->stack_size_; 567 stack_trace_file_ = options->stack_trace_file_; 568 569 compiler_executable_ = options->compiler_executable_; 570 compiler_options_ = options->compiler_options_; 571 image_compiler_options_ = options->image_compiler_options_; 572 573 max_spins_before_thin_lock_inflation_ = options->max_spins_before_thin_lock_inflation_; 574 575 monitor_list_ = new MonitorList; 576 monitor_pool_ = MonitorPool::Create(); 577 thread_list_ = new ThreadList; 578 intern_table_ = new InternTable; 579 580 verify_ = options->verify_; 581 582 if (options->interpreter_only_) { 583 GetInstrumentation()->ForceInterpretOnly(); 584 } 585 586 heap_ = new gc::Heap(options->heap_initial_size_, 587 options->heap_growth_limit_, 588 options->heap_min_free_, 589 options->heap_max_free_, 590 options->heap_target_utilization_, 591 options->foreground_heap_growth_multiplier_, 592 options->heap_maximum_size_, 593 options->image_, 594 options->image_isa_, 595 options->collector_type_, 596 options->background_collector_type_, 597 options->parallel_gc_threads_, 598 options->conc_gc_threads_, 599 options->low_memory_mode_, 600 options->long_pause_log_threshold_, 601 options->long_gc_log_threshold_, 602 options->ignore_max_footprint_, 603 options->use_tlab_, 604 options->verify_pre_gc_heap_, 605 options->verify_pre_sweeping_heap_, 606 options->verify_post_gc_heap_, 607 options->verify_pre_gc_rosalloc_, 608 options->verify_pre_sweeping_rosalloc_, 609 options->verify_post_gc_rosalloc_, 610 options->use_homogeneous_space_compaction_for_oom_, 611 options->min_interval_homogeneous_space_compaction_by_oom_); 612 613 dump_gc_performance_on_shutdown_ = options->dump_gc_performance_on_shutdown_; 614 615 BlockSignals(); 616 InitPlatformSignalHandlers(); 617 618 // Change the implicit checks flags based on runtime architecture. 619 switch (kRuntimeISA) { 620 case kArm: 621 case kThumb2: 622 case kX86: 623 implicit_null_checks_ = true; 624 implicit_so_checks_ = true; 625 break; 626 default: 627 // Keep the defaults. 628 break; 629 } 630 631 if (!options->interpreter_only_ && 632 (implicit_null_checks_ || implicit_so_checks_ || implicit_suspend_checks_)) { 633 fault_manager.Init(); 634 635 // These need to be in a specific order. The null point check handler must be 636 // after the suspend check and stack overflow check handlers. 637 if (implicit_suspend_checks_) { 638 suspend_handler_ = new SuspensionHandler(&fault_manager); 639 } 640 641 if (implicit_so_checks_) { 642 stack_overflow_handler_ = new StackOverflowHandler(&fault_manager); 643 } 644 645 if (implicit_null_checks_) { 646 null_pointer_handler_ = new NullPointerHandler(&fault_manager); 647 } 648 649 if (kEnableJavaStackTraceHandler) { 650 new JavaStackTraceHandler(&fault_manager); 651 } 652 } 653 654 java_vm_ = new JavaVMExt(this, options.get()); 655 656 Thread::Startup(); 657 658 // ClassLinker needs an attached thread, but we can't fully attach a thread without creating 659 // objects. We can't supply a thread group yet; it will be fixed later. Since we are the main 660 // thread, we do not get a java peer. 661 Thread* self = Thread::Attach("main", false, NULL, false); 662 CHECK_EQ(self->GetThreadId(), ThreadList::kMainThreadId); 663 CHECK(self != NULL); 664 665 // Set us to runnable so tools using a runtime can allocate and GC by default 666 self->TransitionFromSuspendedToRunnable(); 667 668 // Now we're attached, we can take the heap locks and validate the heap. 669 GetHeap()->EnableObjectValidation(); 670 671 CHECK_GE(GetHeap()->GetContinuousSpaces().size(), 1U); 672 class_linker_ = new ClassLinker(intern_table_); 673 if (GetHeap()->HasImageSpace()) { 674 class_linker_->InitFromImage(); 675 if (kIsDebugBuild) { 676 GetHeap()->GetImageSpace()->VerifyImageAllocations(); 677 } 678 } else { 679 CHECK(options->boot_class_path_ != NULL); 680 CHECK_NE(options->boot_class_path_->size(), 0U); 681 class_linker_->InitFromCompiler(*options->boot_class_path_); 682 } 683 CHECK(class_linker_ != NULL); 684 verifier::MethodVerifier::Init(); 685 686 method_trace_ = options->method_trace_; 687 method_trace_file_ = options->method_trace_file_; 688 method_trace_file_size_ = options->method_trace_file_size_; 689 690 profile_output_filename_ = options->profile_output_filename_; 691 profiler_options_ = options->profiler_options_; 692 693 // TODO: move this to just be an Trace::Start argument 694 Trace::SetDefaultClockSource(options->profile_clock_source_); 695 696 if (options->method_trace_) { 697 ScopedThreadStateChange tsc(self, kWaitingForMethodTracingStart); 698 Trace::Start(options->method_trace_file_.c_str(), -1, options->method_trace_file_size_, 0, 699 false, false, 0); 700 } 701 702 // Pre-allocate an OutOfMemoryError for the double-OOME case. 703 self->ThrowNewException(ThrowLocation(), "Ljava/lang/OutOfMemoryError;", 704 "OutOfMemoryError thrown while trying to throw OutOfMemoryError; " 705 "no stack available"); 706 pre_allocated_OutOfMemoryError_ = self->GetException(NULL); 707 self->ClearException(); 708 709 VLOG(startup) << "Runtime::Init exiting"; 710 return true; 711} 712 713void Runtime::InitNativeMethods() { 714 VLOG(startup) << "Runtime::InitNativeMethods entering"; 715 Thread* self = Thread::Current(); 716 JNIEnv* env = self->GetJniEnv(); 717 718 // Must be in the kNative state for calling native methods (JNI_OnLoad code). 719 CHECK_EQ(self->GetState(), kNative); 720 721 // First set up JniConstants, which is used by both the runtime's built-in native 722 // methods and libcore. 723 JniConstants::init(env); 724 WellKnownClasses::Init(env); 725 726 // Then set up the native methods provided by the runtime itself. 727 RegisterRuntimeNativeMethods(env); 728 729 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad. 730 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's 731 // the library that implements System.loadLibrary! 732 { 733 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore")); 734 std::string reason; 735 self->TransitionFromSuspendedToRunnable(); 736 StackHandleScope<1> hs(self); 737 auto class_loader(hs.NewHandle<mirror::ClassLoader>(nullptr)); 738 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, class_loader, &reason)) { 739 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason; 740 } 741 self->TransitionFromRunnableToSuspended(kNative); 742 } 743 744 // Initialize well known classes that may invoke runtime native methods. 745 WellKnownClasses::LateInit(env); 746 747 VLOG(startup) << "Runtime::InitNativeMethods exiting"; 748} 749 750void Runtime::InitThreadGroups(Thread* self) { 751 JNIEnvExt* env = self->GetJniEnv(); 752 ScopedJniEnvLocalRefState env_state(env); 753 main_thread_group_ = 754 env->NewGlobalRef(env->GetStaticObjectField( 755 WellKnownClasses::java_lang_ThreadGroup, 756 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup)); 757 CHECK(main_thread_group_ != NULL || IsCompiler()); 758 system_thread_group_ = 759 env->NewGlobalRef(env->GetStaticObjectField( 760 WellKnownClasses::java_lang_ThreadGroup, 761 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup)); 762 CHECK(system_thread_group_ != NULL || IsCompiler()); 763} 764 765jobject Runtime::GetMainThreadGroup() const { 766 CHECK(main_thread_group_ != NULL || IsCompiler()); 767 return main_thread_group_; 768} 769 770jobject Runtime::GetSystemThreadGroup() const { 771 CHECK(system_thread_group_ != NULL || IsCompiler()); 772 return system_thread_group_; 773} 774 775jobject Runtime::GetSystemClassLoader() const { 776 CHECK(system_class_loader_ != NULL || IsCompiler()); 777 return system_class_loader_; 778} 779 780void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) { 781#define REGISTER(FN) extern void FN(JNIEnv*); FN(env) 782 // Register Throwable first so that registration of other native methods can throw exceptions 783 REGISTER(register_java_lang_Throwable); 784 REGISTER(register_dalvik_system_DexFile); 785 REGISTER(register_dalvik_system_VMDebug); 786 REGISTER(register_dalvik_system_VMRuntime); 787 REGISTER(register_dalvik_system_VMStack); 788 REGISTER(register_dalvik_system_ZygoteHooks); 789 REGISTER(register_java_lang_Class); 790 REGISTER(register_java_lang_DexCache); 791 REGISTER(register_java_lang_Object); 792 REGISTER(register_java_lang_Runtime); 793 REGISTER(register_java_lang_String); 794 REGISTER(register_java_lang_System); 795 REGISTER(register_java_lang_Thread); 796 REGISTER(register_java_lang_VMClassLoader); 797 REGISTER(register_java_lang_ref_Reference); 798 REGISTER(register_java_lang_reflect_Array); 799 REGISTER(register_java_lang_reflect_Constructor); 800 REGISTER(register_java_lang_reflect_Field); 801 REGISTER(register_java_lang_reflect_Method); 802 REGISTER(register_java_lang_reflect_Proxy); 803 REGISTER(register_java_util_concurrent_atomic_AtomicLong); 804 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer); 805 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal); 806 REGISTER(register_sun_misc_Unsafe); 807#undef REGISTER 808} 809 810void Runtime::DumpForSigQuit(std::ostream& os) { 811 GetClassLinker()->DumpForSigQuit(os); 812 GetInternTable()->DumpForSigQuit(os); 813 GetJavaVM()->DumpForSigQuit(os); 814 GetHeap()->DumpForSigQuit(os); 815 os << "\n"; 816 817 thread_list_->DumpForSigQuit(os); 818 BaseMutex::DumpAll(os); 819} 820 821void Runtime::DumpLockHolders(std::ostream& os) { 822 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid(); 823 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner(); 824 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner(); 825 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner(); 826 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) { 827 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n" 828 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n" 829 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n" 830 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n"; 831 } 832} 833 834void Runtime::SetStatsEnabled(bool new_state) { 835 if (new_state == true) { 836 GetStats()->Clear(~0); 837 // TODO: wouldn't it make more sense to clear _all_ threads' stats? 838 Thread::Current()->GetStats()->Clear(~0); 839 GetInstrumentation()->InstrumentQuickAllocEntryPoints(); 840 } else { 841 GetInstrumentation()->UninstrumentQuickAllocEntryPoints(); 842 } 843 stats_enabled_ = new_state; 844} 845 846void Runtime::ResetStats(int kinds) { 847 GetStats()->Clear(kinds & 0xffff); 848 // TODO: wouldn't it make more sense to clear _all_ threads' stats? 849 Thread::Current()->GetStats()->Clear(kinds >> 16); 850} 851 852int32_t Runtime::GetStat(int kind) { 853 RuntimeStats* stats; 854 if (kind < (1<<16)) { 855 stats = GetStats(); 856 } else { 857 stats = Thread::Current()->GetStats(); 858 kind >>= 16; 859 } 860 switch (kind) { 861 case KIND_ALLOCATED_OBJECTS: 862 return stats->allocated_objects; 863 case KIND_ALLOCATED_BYTES: 864 return stats->allocated_bytes; 865 case KIND_FREED_OBJECTS: 866 return stats->freed_objects; 867 case KIND_FREED_BYTES: 868 return stats->freed_bytes; 869 case KIND_GC_INVOCATIONS: 870 return stats->gc_for_alloc_count; 871 case KIND_CLASS_INIT_COUNT: 872 return stats->class_init_count; 873 case KIND_CLASS_INIT_TIME: 874 // Convert ns to us, reduce to 32 bits. 875 return static_cast<int>(stats->class_init_time_ns / 1000); 876 case KIND_EXT_ALLOCATED_OBJECTS: 877 case KIND_EXT_ALLOCATED_BYTES: 878 case KIND_EXT_FREED_OBJECTS: 879 case KIND_EXT_FREED_BYTES: 880 return 0; // backward compatibility 881 default: 882 LOG(FATAL) << "Unknown statistic " << kind; 883 return -1; // unreachable 884 } 885} 886 887void Runtime::BlockSignals() { 888 SignalSet signals; 889 signals.Add(SIGPIPE); 890 // SIGQUIT is used to dump the runtime's state (including stack traces). 891 signals.Add(SIGQUIT); 892 // SIGUSR1 is used to initiate a GC. 893 signals.Add(SIGUSR1); 894 signals.Block(); 895} 896 897bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group, 898 bool create_peer) { 899 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL; 900 if (thread_name == NULL) { 901 LOG(WARNING) << *Thread::Current() << " attached without supplying a name"; 902 } 903 return success; 904} 905 906void Runtime::DetachCurrentThread() { 907 Thread* self = Thread::Current(); 908 if (self == NULL) { 909 LOG(FATAL) << "attempting to detach thread that is not attached"; 910 } 911 if (self->HasManagedStack()) { 912 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code"; 913 } 914 thread_list_->Unregister(self); 915} 916 917 mirror::Throwable* Runtime::GetPreAllocatedOutOfMemoryError() const { 918 if (pre_allocated_OutOfMemoryError_ == NULL) { 919 LOG(ERROR) << "Failed to return pre-allocated OOME"; 920 } 921 return pre_allocated_OutOfMemoryError_; 922} 923 924void Runtime::VisitConstantRoots(RootCallback* callback, void* arg) { 925 // Visit the classes held as static in mirror classes, these can be visited concurrently and only 926 // need to be visited once per GC since they never change. 927 mirror::ArtField::VisitRoots(callback, arg); 928 mirror::ArtMethod::VisitRoots(callback, arg); 929 mirror::Class::VisitRoots(callback, arg); 930 mirror::Reference::VisitRoots(callback, arg); 931 mirror::StackTraceElement::VisitRoots(callback, arg); 932 mirror::String::VisitRoots(callback, arg); 933 mirror::Throwable::VisitRoots(callback, arg); 934 // Visit all the primitive array types classes. 935 mirror::PrimitiveArray<uint8_t>::VisitRoots(callback, arg); // BooleanArray 936 mirror::PrimitiveArray<int8_t>::VisitRoots(callback, arg); // ByteArray 937 mirror::PrimitiveArray<uint16_t>::VisitRoots(callback, arg); // CharArray 938 mirror::PrimitiveArray<double>::VisitRoots(callback, arg); // DoubleArray 939 mirror::PrimitiveArray<float>::VisitRoots(callback, arg); // FloatArray 940 mirror::PrimitiveArray<int32_t>::VisitRoots(callback, arg); // IntArray 941 mirror::PrimitiveArray<int64_t>::VisitRoots(callback, arg); // LongArray 942 mirror::PrimitiveArray<int16_t>::VisitRoots(callback, arg); // ShortArray 943} 944 945void Runtime::VisitConcurrentRoots(RootCallback* callback, void* arg, VisitRootFlags flags) { 946 intern_table_->VisitRoots(callback, arg, flags); 947 class_linker_->VisitRoots(callback, arg, flags); 948 if ((flags & kVisitRootFlagNewRoots) == 0) { 949 // Guaranteed to have no new roots in the constant roots. 950 VisitConstantRoots(callback, arg); 951 } 952} 953 954void Runtime::VisitNonThreadRoots(RootCallback* callback, void* arg) { 955 java_vm_->VisitRoots(callback, arg); 956 if (pre_allocated_OutOfMemoryError_ != nullptr) { 957 callback(reinterpret_cast<mirror::Object**>(&pre_allocated_OutOfMemoryError_), arg, 0, 958 kRootVMInternal); 959 DCHECK(pre_allocated_OutOfMemoryError_ != nullptr); 960 } 961 callback(reinterpret_cast<mirror::Object**>(&resolution_method_), arg, 0, kRootVMInternal); 962 DCHECK(resolution_method_ != nullptr); 963 if (HasImtConflictMethod()) { 964 callback(reinterpret_cast<mirror::Object**>(&imt_conflict_method_), arg, 0, kRootVMInternal); 965 } 966 if (HasDefaultImt()) { 967 callback(reinterpret_cast<mirror::Object**>(&default_imt_), arg, 0, kRootVMInternal); 968 } 969 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { 970 if (callee_save_methods_[i] != nullptr) { 971 callback(reinterpret_cast<mirror::Object**>(&callee_save_methods_[i]), arg, 0, 972 kRootVMInternal); 973 } 974 } 975 { 976 MutexLock mu(Thread::Current(), method_verifier_lock_); 977 for (verifier::MethodVerifier* verifier : method_verifiers_) { 978 verifier->VisitRoots(callback, arg); 979 } 980 } 981 if (preinitialization_transaction_ != nullptr) { 982 preinitialization_transaction_->VisitRoots(callback, arg); 983 } 984 instrumentation_.VisitRoots(callback, arg); 985} 986 987void Runtime::VisitNonConcurrentRoots(RootCallback* callback, void* arg) { 988 thread_list_->VisitRoots(callback, arg); 989 VisitNonThreadRoots(callback, arg); 990} 991 992void Runtime::VisitRoots(RootCallback* callback, void* arg, VisitRootFlags flags) { 993 VisitNonConcurrentRoots(callback, arg); 994 VisitConcurrentRoots(callback, arg, flags); 995} 996 997mirror::ObjectArray<mirror::ArtMethod>* Runtime::CreateDefaultImt(ClassLinker* cl) { 998 Thread* self = Thread::Current(); 999 StackHandleScope<1> hs(self); 1000 Handle<mirror::ObjectArray<mirror::ArtMethod>> imtable( 1001 hs.NewHandle(cl->AllocArtMethodArray(self, 64))); 1002 mirror::ArtMethod* imt_conflict_method = Runtime::Current()->GetImtConflictMethod(); 1003 for (size_t i = 0; i < static_cast<size_t>(imtable->GetLength()); i++) { 1004 imtable->Set<false>(i, imt_conflict_method); 1005 } 1006 return imtable.Get(); 1007} 1008 1009mirror::ArtMethod* Runtime::CreateImtConflictMethod() { 1010 Thread* self = Thread::Current(); 1011 Runtime* runtime = Runtime::Current(); 1012 ClassLinker* class_linker = runtime->GetClassLinker(); 1013 StackHandleScope<1> hs(self); 1014 Handle<mirror::ArtMethod> method(hs.NewHandle(class_linker->AllocArtMethod(self))); 1015 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod()); 1016 // TODO: use a special method for imt conflict method saves. 1017 method->SetDexMethodIndex(DexFile::kDexNoIndex); 1018 // When compiling, the code pointer will get set later when the image is loaded. 1019 if (runtime->IsCompiler()) { 1020 method->SetEntryPointFromPortableCompiledCode(nullptr); 1021 method->SetEntryPointFromQuickCompiledCode(nullptr); 1022 } else { 1023 method->SetEntryPointFromPortableCompiledCode(class_linker->GetPortableImtConflictTrampoline()); 1024 method->SetEntryPointFromQuickCompiledCode(class_linker->GetQuickImtConflictTrampoline()); 1025 } 1026 return method.Get(); 1027} 1028 1029mirror::ArtMethod* Runtime::CreateResolutionMethod() { 1030 Thread* self = Thread::Current(); 1031 Runtime* runtime = Runtime::Current(); 1032 ClassLinker* class_linker = runtime->GetClassLinker(); 1033 StackHandleScope<1> hs(self); 1034 Handle<mirror::ArtMethod> method(hs.NewHandle(class_linker->AllocArtMethod(self))); 1035 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod()); 1036 // TODO: use a special method for resolution method saves 1037 method->SetDexMethodIndex(DexFile::kDexNoIndex); 1038 // When compiling, the code pointer will get set later when the image is loaded. 1039 if (runtime->IsCompiler()) { 1040 method->SetEntryPointFromPortableCompiledCode(nullptr); 1041 method->SetEntryPointFromQuickCompiledCode(nullptr); 1042 } else { 1043 method->SetEntryPointFromPortableCompiledCode(class_linker->GetPortableResolutionTrampoline()); 1044 method->SetEntryPointFromQuickCompiledCode(class_linker->GetQuickResolutionTrampoline()); 1045 } 1046 return method.Get(); 1047} 1048 1049mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(CalleeSaveType type) { 1050 Thread* self = Thread::Current(); 1051 Runtime* runtime = Runtime::Current(); 1052 ClassLinker* class_linker = runtime->GetClassLinker(); 1053 StackHandleScope<1> hs(self); 1054 Handle<mirror::ArtMethod> method(hs.NewHandle(class_linker->AllocArtMethod(self))); 1055 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod()); 1056 // TODO: use a special method for callee saves 1057 method->SetDexMethodIndex(DexFile::kDexNoIndex); 1058 method->SetEntryPointFromPortableCompiledCode(nullptr); 1059 method->SetEntryPointFromQuickCompiledCode(nullptr); 1060 DCHECK_NE(instruction_set_, kNone); 1061 return method.Get(); 1062} 1063 1064void Runtime::DisallowNewSystemWeaks() { 1065 monitor_list_->DisallowNewMonitors(); 1066 intern_table_->DisallowNewInterns(); 1067 java_vm_->DisallowNewWeakGlobals(); 1068} 1069 1070void Runtime::AllowNewSystemWeaks() { 1071 monitor_list_->AllowNewMonitors(); 1072 intern_table_->AllowNewInterns(); 1073 java_vm_->AllowNewWeakGlobals(); 1074} 1075 1076void Runtime::SetInstructionSet(InstructionSet instruction_set) { 1077 instruction_set_ = instruction_set; 1078 if ((instruction_set_ == kThumb2) || (instruction_set_ == kArm)) { 1079 for (int i = 0; i != kLastCalleeSaveType; ++i) { 1080 CalleeSaveType type = static_cast<CalleeSaveType>(i); 1081 callee_save_method_frame_infos_[i] = arm::ArmCalleeSaveMethodFrameInfo(type); 1082 } 1083 } else if (instruction_set_ == kMips) { 1084 for (int i = 0; i != kLastCalleeSaveType; ++i) { 1085 CalleeSaveType type = static_cast<CalleeSaveType>(i); 1086 callee_save_method_frame_infos_[i] = mips::MipsCalleeSaveMethodFrameInfo(type); 1087 } 1088 } else if (instruction_set_ == kX86) { 1089 for (int i = 0; i != kLastCalleeSaveType; ++i) { 1090 CalleeSaveType type = static_cast<CalleeSaveType>(i); 1091 callee_save_method_frame_infos_[i] = x86::X86CalleeSaveMethodFrameInfo(type); 1092 } 1093 } else if (instruction_set_ == kX86_64) { 1094 for (int i = 0; i != kLastCalleeSaveType; ++i) { 1095 CalleeSaveType type = static_cast<CalleeSaveType>(i); 1096 callee_save_method_frame_infos_[i] = x86_64::X86_64CalleeSaveMethodFrameInfo(type); 1097 } 1098 } else if (instruction_set_ == kArm64) { 1099 for (int i = 0; i != kLastCalleeSaveType; ++i) { 1100 CalleeSaveType type = static_cast<CalleeSaveType>(i); 1101 callee_save_method_frame_infos_[i] = arm64::Arm64CalleeSaveMethodFrameInfo(type); 1102 } 1103 } else { 1104 UNIMPLEMENTED(FATAL) << instruction_set_; 1105 } 1106} 1107 1108void Runtime::SetCalleeSaveMethod(mirror::ArtMethod* method, CalleeSaveType type) { 1109 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType)); 1110 callee_save_methods_[type] = method; 1111} 1112 1113const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) { 1114 if (class_loader == NULL) { 1115 return GetClassLinker()->GetBootClassPath(); 1116 } 1117 CHECK(UseCompileTimeClassPath()); 1118 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader); 1119 CHECK(it != compile_time_class_paths_.end()); 1120 return it->second; 1121} 1122 1123void Runtime::SetCompileTimeClassPath(jobject class_loader, 1124 std::vector<const DexFile*>& class_path) { 1125 CHECK(!IsStarted()); 1126 use_compile_time_class_path_ = true; 1127 compile_time_class_paths_.Put(class_loader, class_path); 1128} 1129 1130void Runtime::AddMethodVerifier(verifier::MethodVerifier* verifier) { 1131 DCHECK(verifier != nullptr); 1132 MutexLock mu(Thread::Current(), method_verifier_lock_); 1133 method_verifiers_.insert(verifier); 1134} 1135 1136void Runtime::RemoveMethodVerifier(verifier::MethodVerifier* verifier) { 1137 DCHECK(verifier != nullptr); 1138 MutexLock mu(Thread::Current(), method_verifier_lock_); 1139 auto it = method_verifiers_.find(verifier); 1140 CHECK(it != method_verifiers_.end()); 1141 method_verifiers_.erase(it); 1142} 1143 1144void Runtime::StartProfiler(const char* profile_output_filename) { 1145 profile_output_filename_ = profile_output_filename; 1146 profiler_started_ = 1147 BackgroundMethodSamplingProfiler::Start(profile_output_filename_, profiler_options_); 1148} 1149 1150// Transaction support. 1151void Runtime::EnterTransactionMode(Transaction* transaction) { 1152 DCHECK(IsCompiler()); 1153 DCHECK(transaction != nullptr); 1154 DCHECK(!IsActiveTransaction()); 1155 preinitialization_transaction_ = transaction; 1156} 1157 1158void Runtime::ExitTransactionMode() { 1159 DCHECK(IsCompiler()); 1160 DCHECK(IsActiveTransaction()); 1161 preinitialization_transaction_ = nullptr; 1162} 1163 1164void Runtime::RecordWriteField32(mirror::Object* obj, MemberOffset field_offset, 1165 uint32_t value, bool is_volatile) const { 1166 DCHECK(IsCompiler()); 1167 DCHECK(IsActiveTransaction()); 1168 preinitialization_transaction_->RecordWriteField32(obj, field_offset, value, is_volatile); 1169} 1170 1171void Runtime::RecordWriteField64(mirror::Object* obj, MemberOffset field_offset, 1172 uint64_t value, bool is_volatile) const { 1173 DCHECK(IsCompiler()); 1174 DCHECK(IsActiveTransaction()); 1175 preinitialization_transaction_->RecordWriteField64(obj, field_offset, value, is_volatile); 1176} 1177 1178void Runtime::RecordWriteFieldReference(mirror::Object* obj, MemberOffset field_offset, 1179 mirror::Object* value, bool is_volatile) const { 1180 DCHECK(IsCompiler()); 1181 DCHECK(IsActiveTransaction()); 1182 preinitialization_transaction_->RecordWriteFieldReference(obj, field_offset, value, is_volatile); 1183} 1184 1185void Runtime::RecordWriteArray(mirror::Array* array, size_t index, uint64_t value) const { 1186 DCHECK(IsCompiler()); 1187 DCHECK(IsActiveTransaction()); 1188 preinitialization_transaction_->RecordWriteArray(array, index, value); 1189} 1190 1191void Runtime::RecordStrongStringInsertion(mirror::String* s, uint32_t hash_code) const { 1192 DCHECK(IsCompiler()); 1193 DCHECK(IsActiveTransaction()); 1194 preinitialization_transaction_->RecordStrongStringInsertion(s, hash_code); 1195} 1196 1197void Runtime::RecordWeakStringInsertion(mirror::String* s, uint32_t hash_code) const { 1198 DCHECK(IsCompiler()); 1199 DCHECK(IsActiveTransaction()); 1200 preinitialization_transaction_->RecordWeakStringInsertion(s, hash_code); 1201} 1202 1203void Runtime::RecordStrongStringRemoval(mirror::String* s, uint32_t hash_code) const { 1204 DCHECK(IsCompiler()); 1205 DCHECK(IsActiveTransaction()); 1206 preinitialization_transaction_->RecordStrongStringRemoval(s, hash_code); 1207} 1208 1209void Runtime::RecordWeakStringRemoval(mirror::String* s, uint32_t hash_code) const { 1210 DCHECK(IsCompiler()); 1211 DCHECK(IsActiveTransaction()); 1212 preinitialization_transaction_->RecordWeakStringRemoval(s, hash_code); 1213} 1214 1215void Runtime::SetFaultMessage(const std::string& message) { 1216 MutexLock mu(Thread::Current(), fault_message_lock_); 1217 fault_message_ = message; 1218} 1219 1220void Runtime::AddCurrentRuntimeFeaturesAsDex2OatArguments(std::vector<std::string>* argv) 1221 const { 1222 if (GetInstrumentation()->InterpretOnly()) { 1223 argv->push_back("--compiler-filter=interpret-only"); 1224 } 1225 1226 // Make the dex2oat instruction set match that of the launching runtime. If we have multiple 1227 // architecture support, dex2oat may be compiled as a different instruction-set than that 1228 // currently being executed. 1229 std::string instruction_set("--instruction-set="); 1230 instruction_set += GetInstructionSetString(kRuntimeISA); 1231 argv->push_back(instruction_set); 1232 1233 std::string features("--instruction-set-features="); 1234 features += GetDefaultInstructionSetFeatures(); 1235 argv->push_back(features); 1236} 1237 1238void Runtime::UpdateProfilerState(int state) { 1239 VLOG(profiler) << "Profiler state updated to " << state; 1240} 1241} // namespace art 1242