runtime.cc revision 7204c04dd86ae8ce05690e38737b2abf017a0a69
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/image_space.h" 53#include "gc/space/space.h" 54#include "image.h" 55#include "instrumentation.h" 56#include "intern_table.h" 57#include "jni_internal.h" 58#include "mirror/art_field-inl.h" 59#include "mirror/art_method-inl.h" 60#include "mirror/array.h" 61#include "mirror/class-inl.h" 62#include "mirror/class_loader.h" 63#include "mirror/stack_trace_element.h" 64#include "mirror/throwable.h" 65#include "monitor.h" 66#include "native_bridge.h" 67#include "parsed_options.h" 68#include "oat_file.h" 69#include "quick/quick_method_frame_info.h" 70#include "reflection.h" 71#include "ScopedLocalRef.h" 72#include "scoped_thread_state_change.h" 73#include "signal_catcher.h" 74#include "signal_set.h" 75#include "handle_scope-inl.h" 76#include "thread.h" 77#include "thread_list.h" 78#include "trace.h" 79#include "transaction.h" 80#include "profiler.h" 81#include "verifier/method_verifier.h" 82#include "well_known_classes.h" 83 84#include "JniConstants.h" // Last to avoid LOG redefinition in ics-mr1-plus-art. 85 86#ifdef HAVE_ANDROID_OS 87#include "cutils/properties.h" 88#endif 89 90namespace art { 91 92static constexpr bool kEnableJavaStackTraceHandler = true; 93const char* Runtime::kDefaultInstructionSetFeatures = 94 STRINGIFY(ART_DEFAULT_INSTRUCTION_SET_FEATURES); 95Runtime* Runtime::instance_ = NULL; 96 97Runtime::Runtime() 98 : instruction_set_(kNone), 99 compiler_callbacks_(nullptr), 100 is_zygote_(false), 101 must_relocate_(false), 102 is_concurrent_gc_enabled_(true), 103 is_explicit_gc_disabled_(false), 104 default_stack_size_(0), 105 heap_(nullptr), 106 max_spins_before_thin_lock_inflation_(Monitor::kDefaultMaxSpinsBeforeThinLockInflation), 107 monitor_list_(nullptr), 108 monitor_pool_(nullptr), 109 thread_list_(nullptr), 110 intern_table_(nullptr), 111 class_linker_(nullptr), 112 signal_catcher_(nullptr), 113 java_vm_(nullptr), 114 fault_message_lock_("Fault message lock"), 115 fault_message_(""), 116 method_verifier_lock_("Method verifiers lock"), 117 threads_being_born_(0), 118 shutdown_cond_(new ConditionVariable("Runtime shutdown", *Locks::runtime_shutdown_lock_)), 119 shutting_down_(false), 120 shutting_down_started_(false), 121 started_(false), 122 finished_starting_(false), 123 vfprintf_(nullptr), 124 exit_(nullptr), 125 abort_(nullptr), 126 stats_enabled_(false), 127 running_on_valgrind_(RUNNING_ON_VALGRIND > 0), 128 profiler_started_(false), 129 method_trace_(false), 130 method_trace_file_size_(0), 131 instrumentation_(), 132 use_compile_time_class_path_(false), 133 main_thread_group_(nullptr), 134 system_thread_group_(nullptr), 135 system_class_loader_(nullptr), 136 dump_gc_performance_on_shutdown_(false), 137 preinitialization_transaction_(nullptr), 138 null_pointer_handler_(nullptr), 139 suspend_handler_(nullptr), 140 stack_overflow_handler_(nullptr), 141 verify_(false), 142 target_sdk_version_(0), 143 implicit_null_checks_(false), 144 implicit_so_checks_(false), 145 implicit_suspend_checks_(false) { 146} 147 148Runtime::~Runtime() { 149 if (dump_gc_performance_on_shutdown_) { 150 // This can't be called from the Heap destructor below because it 151 // could call RosAlloc::InspectAll() which needs the thread_list 152 // to be still alive. 153 heap_->DumpGcPerformanceInfo(LOG(INFO)); 154 } 155 156 Thread* self = Thread::Current(); 157 { 158 MutexLock mu(self, *Locks::runtime_shutdown_lock_); 159 shutting_down_started_ = true; 160 while (threads_being_born_ > 0) { 161 shutdown_cond_->Wait(self); 162 } 163 shutting_down_ = true; 164 } 165 // Shut down background profiler before the runtime exits. 166 if (profiler_started_) { 167 BackgroundMethodSamplingProfiler::Shutdown(); 168 } 169 170 Trace::Shutdown(); 171 172 // Make sure to let the GC complete if it is running. 173 heap_->WaitForGcToComplete(gc::kGcCauseBackground, self); 174 heap_->DeleteThreadPool(); 175 176 // Make sure our internal threads are dead before we start tearing down things they're using. 177 Dbg::StopJdwp(); 178 delete signal_catcher_; 179 180 // Make sure all other non-daemon threads have terminated, and all daemon threads are suspended. 181 delete thread_list_; 182 delete monitor_list_; 183 delete monitor_pool_; 184 delete class_linker_; 185 delete heap_; 186 delete intern_table_; 187 delete java_vm_; 188 Thread::Shutdown(); 189 QuasiAtomic::Shutdown(); 190 verifier::MethodVerifier::Shutdown(); 191 // TODO: acquire a static mutex on Runtime to avoid racing. 192 CHECK(instance_ == nullptr || instance_ == this); 193 instance_ = nullptr; 194 195 delete null_pointer_handler_; 196 delete suspend_handler_; 197 delete stack_overflow_handler_; 198} 199 200struct AbortState { 201 void Dump(std::ostream& os) NO_THREAD_SAFETY_ANALYSIS { 202 if (gAborting > 1) { 203 os << "Runtime aborting --- recursively, so no thread-specific detail!\n"; 204 return; 205 } 206 gAborting++; 207 os << "Runtime aborting...\n"; 208 if (Runtime::Current() == NULL) { 209 os << "(Runtime does not yet exist!)\n"; 210 return; 211 } 212 Thread* self = Thread::Current(); 213 if (self == nullptr) { 214 os << "(Aborting thread was not attached to runtime!)\n"; 215 DumpKernelStack(os, GetTid(), " kernel: ", false); 216 DumpNativeStack(os, GetTid(), " native: ", nullptr); 217 } else { 218 os << "Aborting thread:\n"; 219 if (Locks::mutator_lock_->IsExclusiveHeld(self) || Locks::mutator_lock_->IsSharedHeld(self)) { 220 DumpThread(os, self); 221 } else { 222 if (Locks::mutator_lock_->SharedTryLock(self)) { 223 DumpThread(os, self); 224 Locks::mutator_lock_->SharedUnlock(self); 225 } 226 } 227 } 228 DumpAllThreads(os, self); 229 } 230 231 void DumpThread(std::ostream& os, Thread* self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { 232 self->Dump(os); 233 if (self->IsExceptionPending()) { 234 ThrowLocation throw_location; 235 mirror::Throwable* exception = self->GetException(&throw_location); 236 os << "Pending exception " << PrettyTypeOf(exception) 237 << " thrown by '" << throw_location.Dump() << "'\n" 238 << exception->Dump(); 239 } 240 } 241 242 void DumpAllThreads(std::ostream& os, Thread* self) NO_THREAD_SAFETY_ANALYSIS { 243 Runtime* runtime = Runtime::Current(); 244 if (runtime != nullptr) { 245 ThreadList* thread_list = runtime->GetThreadList(); 246 if (thread_list != nullptr) { 247 bool tll_already_held = Locks::thread_list_lock_->IsExclusiveHeld(self); 248 bool ml_already_held = Locks::mutator_lock_->IsSharedHeld(self); 249 if (!tll_already_held || !ml_already_held) { 250 os << "Dumping all threads without appropriate locks held:" 251 << (!tll_already_held ? " thread list lock" : "") 252 << (!ml_already_held ? " mutator lock" : "") 253 << "\n"; 254 } 255 os << "All threads:\n"; 256 thread_list->DumpLocked(os); 257 } 258 } 259 } 260}; 261 262void Runtime::Abort() { 263 gAborting++; // set before taking any locks 264 265 // Ensure that we don't have multiple threads trying to abort at once, 266 // which would result in significantly worse diagnostics. 267 MutexLock mu(Thread::Current(), *Locks::abort_lock_); 268 269 // Get any pending output out of the way. 270 fflush(NULL); 271 272 // Many people have difficulty distinguish aborts from crashes, 273 // so be explicit. 274 AbortState state; 275 LOG(INTERNAL_FATAL) << Dumpable<AbortState>(state); 276 277 // Call the abort hook if we have one. 278 if (Runtime::Current() != NULL && Runtime::Current()->abort_ != NULL) { 279 LOG(INTERNAL_FATAL) << "Calling abort hook..."; 280 Runtime::Current()->abort_(); 281 // notreached 282 LOG(INTERNAL_FATAL) << "Unexpectedly returned from abort hook!"; 283 } 284 285#if defined(__GLIBC__) 286 // TODO: we ought to be able to use pthread_kill(3) here (or abort(3), 287 // which POSIX defines in terms of raise(3), which POSIX defines in terms 288 // of pthread_kill(3)). On Linux, though, libcorkscrew can't unwind through 289 // libpthread, which means the stacks we dump would be useless. Calling 290 // tgkill(2) directly avoids that. 291 syscall(__NR_tgkill, getpid(), GetTid(), SIGABRT); 292 // TODO: LLVM installs it's own SIGABRT handler so exit to be safe... Can we disable that in LLVM? 293 // If not, we could use sigaction(3) before calling tgkill(2) and lose this call to exit(3). 294 exit(1); 295#else 296 abort(); 297#endif 298 // notreached 299} 300 301void Runtime::PreZygoteFork() { 302 heap_->PreZygoteFork(); 303} 304 305void Runtime::CallExitHook(jint status) { 306 if (exit_ != NULL) { 307 ScopedThreadStateChange tsc(Thread::Current(), kNative); 308 exit_(status); 309 LOG(WARNING) << "Exit hook returned instead of exiting!"; 310 } 311} 312 313void Runtime::SweepSystemWeaks(IsMarkedCallback* visitor, void* arg) { 314 GetInternTable()->SweepInternTableWeaks(visitor, arg); 315 GetMonitorList()->SweepMonitorList(visitor, arg); 316 GetJavaVM()->SweepJniWeakGlobals(visitor, arg); 317} 318 319bool Runtime::Create(const RuntimeOptions& options, bool ignore_unrecognized) { 320 // TODO: acquire a static mutex on Runtime to avoid racing. 321 if (Runtime::instance_ != NULL) { 322 return false; 323 } 324 InitLogging(NULL); // Calls Locks::Init() as a side effect. 325 instance_ = new Runtime; 326 if (!instance_->Init(options, ignore_unrecognized)) { 327 delete instance_; 328 instance_ = NULL; 329 return false; 330 } 331 return true; 332} 333 334jobject CreateSystemClassLoader() { 335 if (Runtime::Current()->UseCompileTimeClassPath()) { 336 return NULL; 337 } 338 339 ScopedObjectAccess soa(Thread::Current()); 340 ClassLinker* cl = Runtime::Current()->GetClassLinker(); 341 342 StackHandleScope<3> hs(soa.Self()); 343 Handle<mirror::Class> class_loader_class( 344 hs.NewHandle(soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_ClassLoader))); 345 CHECK(cl->EnsureInitialized(class_loader_class, true, true)); 346 347 mirror::ArtMethod* getSystemClassLoader = 348 class_loader_class->FindDirectMethod("getSystemClassLoader", "()Ljava/lang/ClassLoader;"); 349 CHECK(getSystemClassLoader != NULL); 350 351 JValue result = InvokeWithJValues(soa, nullptr, soa.EncodeMethod(getSystemClassLoader), nullptr); 352 Handle<mirror::ClassLoader> class_loader( 353 hs.NewHandle(down_cast<mirror::ClassLoader*>(result.GetL()))); 354 CHECK(class_loader.Get() != nullptr); 355 JNIEnv* env = soa.Self()->GetJniEnv(); 356 ScopedLocalRef<jobject> system_class_loader(env, 357 soa.AddLocalReference<jobject>(class_loader.Get())); 358 CHECK(system_class_loader.get() != nullptr); 359 360 soa.Self()->SetClassLoaderOverride(class_loader.Get()); 361 362 Handle<mirror::Class> thread_class( 363 hs.NewHandle(soa.Decode<mirror::Class*>(WellKnownClasses::java_lang_Thread))); 364 CHECK(cl->EnsureInitialized(thread_class, true, true)); 365 366 mirror::ArtField* contextClassLoader = 367 thread_class->FindDeclaredInstanceField("contextClassLoader", "Ljava/lang/ClassLoader;"); 368 CHECK(contextClassLoader != NULL); 369 370 // We can't run in a transaction yet. 371 contextClassLoader->SetObject<false>(soa.Self()->GetPeer(), class_loader.Get()); 372 373 return env->NewGlobalRef(system_class_loader.get()); 374} 375 376std::string Runtime::GetPatchoatExecutable() const { 377 if (!patchoat_executable_.empty()) { 378 return patchoat_executable_; 379 } 380 std::string patchoat_executable_(GetAndroidRoot()); 381 patchoat_executable_ += (kIsDebugBuild ? "/bin/patchoatd" : "/bin/patchoat"); 382 return patchoat_executable_; 383} 384 385std::string Runtime::GetCompilerExecutable() const { 386 if (!compiler_executable_.empty()) { 387 return compiler_executable_; 388 } 389 std::string compiler_executable(GetAndroidRoot()); 390 compiler_executable += (kIsDebugBuild ? "/bin/dex2oatd" : "/bin/dex2oat"); 391 return compiler_executable; 392} 393 394bool Runtime::Start() { 395 VLOG(startup) << "Runtime::Start entering"; 396 397 // Restore main thread state to kNative as expected by native code. 398 Thread* self = Thread::Current(); 399 self->TransitionFromRunnableToSuspended(kNative); 400 401 started_ = true; 402 403 // InitNativeMethods needs to be after started_ so that the classes 404 // it touches will have methods linked to the oat file if necessary. 405 InitNativeMethods(); 406 407 // Initialize well known thread group values that may be accessed threads while attaching. 408 InitThreadGroups(self); 409 410 Thread::FinishStartup(); 411 412 if (is_zygote_) { 413 if (!InitZygote()) { 414 return false; 415 } 416 } else { 417 DidForkFromZygote(); 418 } 419 420 StartDaemonThreads(); 421 422 system_class_loader_ = CreateSystemClassLoader(); 423 424 { 425 ScopedObjectAccess soa(self); 426 self->GetJniEnv()->locals.AssertEmpty(); 427 } 428 429 VLOG(startup) << "Runtime::Start exiting"; 430 finished_starting_ = true; 431 432 if (profiler_options_.IsEnabled() && !profile_output_filename_.empty()) { 433 // User has asked for a profile using -Xenable-profiler. 434 // Create the profile file if it doesn't exist. 435 int fd = open(profile_output_filename_.c_str(), O_RDWR|O_CREAT|O_EXCL, 0660); 436 if (fd >= 0) { 437 close(fd); 438 } else if (errno != EEXIST) { 439 LOG(INFO) << "Failed to access the profile file. Profiler disabled."; 440 return true; 441 } 442 StartProfiler(profile_output_filename_.c_str()); 443 } 444 445 return true; 446} 447 448void Runtime::EndThreadBirth() EXCLUSIVE_LOCKS_REQUIRED(Locks::runtime_shutdown_lock_) { 449 DCHECK_GT(threads_being_born_, 0U); 450 threads_being_born_--; 451 if (shutting_down_started_ && threads_being_born_ == 0) { 452 shutdown_cond_->Broadcast(Thread::Current()); 453 } 454} 455 456// Do zygote-mode-only initialization. 457bool Runtime::InitZygote() { 458#ifdef __linux__ 459 // zygote goes into its own process group 460 setpgid(0, 0); 461 462 // See storage config details at http://source.android.com/tech/storage/ 463 // Create private mount namespace shared by all children 464 if (unshare(CLONE_NEWNS) == -1) { 465 PLOG(WARNING) << "Failed to unshare()"; 466 return false; 467 } 468 469 // Mark rootfs as being a slave so that changes from default 470 // namespace only flow into our children. 471 if (mount("rootfs", "/", NULL, (MS_SLAVE | MS_REC), NULL) == -1) { 472 PLOG(WARNING) << "Failed to mount() rootfs as MS_SLAVE"; 473 return false; 474 } 475 476 // Create a staging tmpfs that is shared by our children; they will 477 // bind mount storage into their respective private namespaces, which 478 // are isolated from each other. 479 const char* target_base = getenv("EMULATED_STORAGE_TARGET"); 480 if (target_base != NULL) { 481 if (mount("tmpfs", target_base, "tmpfs", MS_NOSUID | MS_NODEV, 482 "uid=0,gid=1028,mode=0751") == -1) { 483 LOG(WARNING) << "Failed to mount tmpfs to " << target_base; 484 return false; 485 } 486 } 487 488 return true; 489#else 490 UNIMPLEMENTED(FATAL); 491 return false; 492#endif 493} 494 495void Runtime::DidForkFromZygote() { 496 is_zygote_ = false; 497 498 // Create the thread pool. 499 heap_->CreateThreadPool(); 500 501 StartSignalCatcher(); 502 503 // Start the JDWP thread. If the command-line debugger flags specified "suspend=y", 504 // this will pause the runtime, so we probably want this to come last. 505 Dbg::StartJdwp(); 506} 507 508void Runtime::StartSignalCatcher() { 509 if (!is_zygote_) { 510 signal_catcher_ = new SignalCatcher(stack_trace_file_); 511 } 512} 513 514bool Runtime::IsShuttingDown(Thread* self) { 515 MutexLock mu(self, *Locks::runtime_shutdown_lock_); 516 return IsShuttingDownLocked(); 517} 518 519void Runtime::StartDaemonThreads() { 520 VLOG(startup) << "Runtime::StartDaemonThreads entering"; 521 522 Thread* self = Thread::Current(); 523 524 // Must be in the kNative state for calling native methods. 525 CHECK_EQ(self->GetState(), kNative); 526 527 JNIEnv* env = self->GetJniEnv(); 528 env->CallStaticVoidMethod(WellKnownClasses::java_lang_Daemons, 529 WellKnownClasses::java_lang_Daemons_start); 530 if (env->ExceptionCheck()) { 531 env->ExceptionDescribe(); 532 LOG(FATAL) << "Error starting java.lang.Daemons"; 533 } 534 535 VLOG(startup) << "Runtime::StartDaemonThreads exiting"; 536} 537 538bool Runtime::Init(const RuntimeOptions& raw_options, bool ignore_unrecognized) { 539 CHECK_EQ(sysconf(_SC_PAGE_SIZE), kPageSize); 540 541 std::unique_ptr<ParsedOptions> options(ParsedOptions::Create(raw_options, ignore_unrecognized)); 542 if (options.get() == NULL) { 543 LOG(ERROR) << "Failed to parse options"; 544 return false; 545 } 546 VLOG(startup) << "Runtime::Init -verbose:startup enabled"; 547 548 QuasiAtomic::Startup(); 549 550 Monitor::Init(options->lock_profiling_threshold_, options->hook_is_sensitive_thread_); 551 552 boot_class_path_string_ = options->boot_class_path_string_; 553 class_path_string_ = options->class_path_string_; 554 properties_ = options->properties_; 555 556 compiler_callbacks_ = options->compiler_callbacks_; 557 patchoat_executable_ = options->patchoat_executable_; 558 must_relocate_ = options->must_relocate_; 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 case kArm64: 624 implicit_null_checks_ = true; 625 implicit_so_checks_ = true; 626 break; 627 default: 628 // Keep the defaults. 629 break; 630 } 631 632 if (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_ = GcRoot<mirror::Throwable>(self->GetException(NULL)); 707 self->ClearException(); 708 709 // Look for a native bridge. 710 NativeBridge::SetNativeBridgeLibraryString(options->native_bridge_library_string_); 711 712 VLOG(startup) << "Runtime::Init exiting"; 713 return true; 714} 715 716void Runtime::InitNativeMethods() { 717 VLOG(startup) << "Runtime::InitNativeMethods entering"; 718 Thread* self = Thread::Current(); 719 JNIEnv* env = self->GetJniEnv(); 720 721 // Must be in the kNative state for calling native methods (JNI_OnLoad code). 722 CHECK_EQ(self->GetState(), kNative); 723 724 // First set up JniConstants, which is used by both the runtime's built-in native 725 // methods and libcore. 726 JniConstants::init(env); 727 WellKnownClasses::Init(env); 728 729 // Then set up the native methods provided by the runtime itself. 730 RegisterRuntimeNativeMethods(env); 731 732 // Then set up libcore, which is just a regular JNI library with a regular JNI_OnLoad. 733 // Most JNI libraries can just use System.loadLibrary, but libcore can't because it's 734 // the library that implements System.loadLibrary! 735 { 736 std::string mapped_name(StringPrintf(OS_SHARED_LIB_FORMAT_STR, "javacore")); 737 std::string reason; 738 self->TransitionFromSuspendedToRunnable(); 739 StackHandleScope<1> hs(self); 740 auto class_loader(hs.NewHandle<mirror::ClassLoader>(nullptr)); 741 if (!instance_->java_vm_->LoadNativeLibrary(mapped_name, class_loader, &reason)) { 742 LOG(FATAL) << "LoadNativeLibrary failed for \"" << mapped_name << "\": " << reason; 743 } 744 self->TransitionFromRunnableToSuspended(kNative); 745 } 746 747 // Initialize well known classes that may invoke runtime native methods. 748 WellKnownClasses::LateInit(env); 749 750 VLOG(startup) << "Runtime::InitNativeMethods exiting"; 751} 752 753void Runtime::InitThreadGroups(Thread* self) { 754 JNIEnvExt* env = self->GetJniEnv(); 755 ScopedJniEnvLocalRefState env_state(env); 756 main_thread_group_ = 757 env->NewGlobalRef(env->GetStaticObjectField( 758 WellKnownClasses::java_lang_ThreadGroup, 759 WellKnownClasses::java_lang_ThreadGroup_mainThreadGroup)); 760 CHECK(main_thread_group_ != NULL || IsCompiler()); 761 system_thread_group_ = 762 env->NewGlobalRef(env->GetStaticObjectField( 763 WellKnownClasses::java_lang_ThreadGroup, 764 WellKnownClasses::java_lang_ThreadGroup_systemThreadGroup)); 765 CHECK(system_thread_group_ != NULL || IsCompiler()); 766} 767 768jobject Runtime::GetMainThreadGroup() const { 769 CHECK(main_thread_group_ != NULL || IsCompiler()); 770 return main_thread_group_; 771} 772 773jobject Runtime::GetSystemThreadGroup() const { 774 CHECK(system_thread_group_ != NULL || IsCompiler()); 775 return system_thread_group_; 776} 777 778jobject Runtime::GetSystemClassLoader() const { 779 CHECK(system_class_loader_ != NULL || IsCompiler()); 780 return system_class_loader_; 781} 782 783void Runtime::RegisterRuntimeNativeMethods(JNIEnv* env) { 784#define REGISTER(FN) extern void FN(JNIEnv*); FN(env) 785 // Register Throwable first so that registration of other native methods can throw exceptions 786 REGISTER(register_java_lang_Throwable); 787 REGISTER(register_dalvik_system_DexFile); 788 REGISTER(register_dalvik_system_VMDebug); 789 REGISTER(register_dalvik_system_VMRuntime); 790 REGISTER(register_dalvik_system_VMStack); 791 REGISTER(register_dalvik_system_ZygoteHooks); 792 REGISTER(register_java_lang_Class); 793 REGISTER(register_java_lang_DexCache); 794 REGISTER(register_java_lang_Object); 795 REGISTER(register_java_lang_Runtime); 796 REGISTER(register_java_lang_String); 797 REGISTER(register_java_lang_System); 798 REGISTER(register_java_lang_Thread); 799 REGISTER(register_java_lang_VMClassLoader); 800 REGISTER(register_java_lang_ref_Reference); 801 REGISTER(register_java_lang_reflect_Array); 802 REGISTER(register_java_lang_reflect_Constructor); 803 REGISTER(register_java_lang_reflect_Field); 804 REGISTER(register_java_lang_reflect_Method); 805 REGISTER(register_java_lang_reflect_Proxy); 806 REGISTER(register_java_util_concurrent_atomic_AtomicLong); 807 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmServer); 808 REGISTER(register_org_apache_harmony_dalvik_ddmc_DdmVmInternal); 809 REGISTER(register_sun_misc_Unsafe); 810#undef REGISTER 811} 812 813void Runtime::DumpForSigQuit(std::ostream& os) { 814 GetClassLinker()->DumpForSigQuit(os); 815 GetInternTable()->DumpForSigQuit(os); 816 GetJavaVM()->DumpForSigQuit(os); 817 GetHeap()->DumpForSigQuit(os); 818 os << "\n"; 819 820 thread_list_->DumpForSigQuit(os); 821 BaseMutex::DumpAll(os); 822} 823 824void Runtime::DumpLockHolders(std::ostream& os) { 825 uint64_t mutator_lock_owner = Locks::mutator_lock_->GetExclusiveOwnerTid(); 826 pid_t thread_list_lock_owner = GetThreadList()->GetLockOwner(); 827 pid_t classes_lock_owner = GetClassLinker()->GetClassesLockOwner(); 828 pid_t dex_lock_owner = GetClassLinker()->GetDexLockOwner(); 829 if ((thread_list_lock_owner | classes_lock_owner | dex_lock_owner) != 0) { 830 os << "Mutator lock exclusive owner tid: " << mutator_lock_owner << "\n" 831 << "ThreadList lock owner tid: " << thread_list_lock_owner << "\n" 832 << "ClassLinker classes lock owner tid: " << classes_lock_owner << "\n" 833 << "ClassLinker dex lock owner tid: " << dex_lock_owner << "\n"; 834 } 835} 836 837void Runtime::SetStatsEnabled(bool new_state) { 838 if (new_state == true) { 839 GetStats()->Clear(~0); 840 // TODO: wouldn't it make more sense to clear _all_ threads' stats? 841 Thread::Current()->GetStats()->Clear(~0); 842 GetInstrumentation()->InstrumentQuickAllocEntryPoints(); 843 } else { 844 GetInstrumentation()->UninstrumentQuickAllocEntryPoints(); 845 } 846 stats_enabled_ = new_state; 847} 848 849void Runtime::ResetStats(int kinds) { 850 GetStats()->Clear(kinds & 0xffff); 851 // TODO: wouldn't it make more sense to clear _all_ threads' stats? 852 Thread::Current()->GetStats()->Clear(kinds >> 16); 853} 854 855int32_t Runtime::GetStat(int kind) { 856 RuntimeStats* stats; 857 if (kind < (1<<16)) { 858 stats = GetStats(); 859 } else { 860 stats = Thread::Current()->GetStats(); 861 kind >>= 16; 862 } 863 switch (kind) { 864 case KIND_ALLOCATED_OBJECTS: 865 return stats->allocated_objects; 866 case KIND_ALLOCATED_BYTES: 867 return stats->allocated_bytes; 868 case KIND_FREED_OBJECTS: 869 return stats->freed_objects; 870 case KIND_FREED_BYTES: 871 return stats->freed_bytes; 872 case KIND_GC_INVOCATIONS: 873 return stats->gc_for_alloc_count; 874 case KIND_CLASS_INIT_COUNT: 875 return stats->class_init_count; 876 case KIND_CLASS_INIT_TIME: 877 // Convert ns to us, reduce to 32 bits. 878 return static_cast<int>(stats->class_init_time_ns / 1000); 879 case KIND_EXT_ALLOCATED_OBJECTS: 880 case KIND_EXT_ALLOCATED_BYTES: 881 case KIND_EXT_FREED_OBJECTS: 882 case KIND_EXT_FREED_BYTES: 883 return 0; // backward compatibility 884 default: 885 LOG(FATAL) << "Unknown statistic " << kind; 886 return -1; // unreachable 887 } 888} 889 890void Runtime::BlockSignals() { 891 SignalSet signals; 892 signals.Add(SIGPIPE); 893 // SIGQUIT is used to dump the runtime's state (including stack traces). 894 signals.Add(SIGQUIT); 895 // SIGUSR1 is used to initiate a GC. 896 signals.Add(SIGUSR1); 897 signals.Block(); 898} 899 900bool Runtime::AttachCurrentThread(const char* thread_name, bool as_daemon, jobject thread_group, 901 bool create_peer) { 902 bool success = Thread::Attach(thread_name, as_daemon, thread_group, create_peer) != NULL; 903 if (thread_name == NULL) { 904 LOG(WARNING) << *Thread::Current() << " attached without supplying a name"; 905 } 906 return success; 907} 908 909void Runtime::DetachCurrentThread() { 910 Thread* self = Thread::Current(); 911 if (self == NULL) { 912 LOG(FATAL) << "attempting to detach thread that is not attached"; 913 } 914 if (self->HasManagedStack()) { 915 LOG(FATAL) << *Thread::Current() << " attempting to detach while still running code"; 916 } 917 thread_list_->Unregister(self); 918} 919 920mirror::Throwable* Runtime::GetPreAllocatedOutOfMemoryError() { 921 mirror::Throwable* oome = pre_allocated_OutOfMemoryError_.Read(); 922 if (oome == NULL) { 923 LOG(ERROR) << "Failed to return pre-allocated OOME"; 924 } 925 return oome; 926} 927 928void Runtime::VisitConstantRoots(RootCallback* callback, void* arg) { 929 // Visit the classes held as static in mirror classes, these can be visited concurrently and only 930 // need to be visited once per GC since they never change. 931 mirror::ArtField::VisitRoots(callback, arg); 932 mirror::ArtMethod::VisitRoots(callback, arg); 933 mirror::Class::VisitRoots(callback, arg); 934 mirror::Reference::VisitRoots(callback, arg); 935 mirror::StackTraceElement::VisitRoots(callback, arg); 936 mirror::String::VisitRoots(callback, arg); 937 mirror::Throwable::VisitRoots(callback, arg); 938 // Visit all the primitive array types classes. 939 mirror::PrimitiveArray<uint8_t>::VisitRoots(callback, arg); // BooleanArray 940 mirror::PrimitiveArray<int8_t>::VisitRoots(callback, arg); // ByteArray 941 mirror::PrimitiveArray<uint16_t>::VisitRoots(callback, arg); // CharArray 942 mirror::PrimitiveArray<double>::VisitRoots(callback, arg); // DoubleArray 943 mirror::PrimitiveArray<float>::VisitRoots(callback, arg); // FloatArray 944 mirror::PrimitiveArray<int32_t>::VisitRoots(callback, arg); // IntArray 945 mirror::PrimitiveArray<int64_t>::VisitRoots(callback, arg); // LongArray 946 mirror::PrimitiveArray<int16_t>::VisitRoots(callback, arg); // ShortArray 947} 948 949void Runtime::VisitConcurrentRoots(RootCallback* callback, void* arg, VisitRootFlags flags) { 950 intern_table_->VisitRoots(callback, arg, flags); 951 class_linker_->VisitRoots(callback, arg, flags); 952 if ((flags & kVisitRootFlagNewRoots) == 0) { 953 // Guaranteed to have no new roots in the constant roots. 954 VisitConstantRoots(callback, arg); 955 } 956} 957 958void Runtime::VisitNonThreadRoots(RootCallback* callback, void* arg) { 959 java_vm_->VisitRoots(callback, arg); 960 if (!pre_allocated_OutOfMemoryError_.IsNull()) { 961 pre_allocated_OutOfMemoryError_.VisitRoot(callback, arg, 0, kRootVMInternal); 962 DCHECK(!pre_allocated_OutOfMemoryError_.IsNull()); 963 } 964 resolution_method_.VisitRoot(callback, arg, 0, kRootVMInternal); 965 DCHECK(!resolution_method_.IsNull()); 966 if (HasImtConflictMethod()) { 967 imt_conflict_method_.VisitRoot(callback, arg, 0, kRootVMInternal); 968 } 969 if (HasDefaultImt()) { 970 default_imt_.VisitRoot(callback, arg, 0, kRootVMInternal); 971 } 972 for (int i = 0; i < Runtime::kLastCalleeSaveType; i++) { 973 if (!callee_save_methods_[i].IsNull()) { 974 callee_save_methods_[i].VisitRoot(callback, arg, 0, kRootVMInternal); 975 } 976 } 977 { 978 MutexLock mu(Thread::Current(), method_verifier_lock_); 979 for (verifier::MethodVerifier* verifier : method_verifiers_) { 980 verifier->VisitRoots(callback, arg); 981 } 982 } 983 if (preinitialization_transaction_ != nullptr) { 984 preinitialization_transaction_->VisitRoots(callback, arg); 985 } 986 instrumentation_.VisitRoots(callback, arg); 987} 988 989void Runtime::VisitNonConcurrentRoots(RootCallback* callback, void* arg) { 990 thread_list_->VisitRoots(callback, arg); 991 VisitNonThreadRoots(callback, arg); 992} 993 994void Runtime::VisitRoots(RootCallback* callback, void* arg, VisitRootFlags flags) { 995 VisitNonConcurrentRoots(callback, arg); 996 VisitConcurrentRoots(callback, arg, flags); 997} 998 999mirror::ObjectArray<mirror::ArtMethod>* Runtime::CreateDefaultImt(ClassLinker* cl) { 1000 Thread* self = Thread::Current(); 1001 StackHandleScope<1> hs(self); 1002 Handle<mirror::ObjectArray<mirror::ArtMethod>> imtable( 1003 hs.NewHandle(cl->AllocArtMethodArray(self, 64))); 1004 mirror::ArtMethod* imt_conflict_method = Runtime::Current()->GetImtConflictMethod(); 1005 for (size_t i = 0; i < static_cast<size_t>(imtable->GetLength()); i++) { 1006 imtable->Set<false>(i, imt_conflict_method); 1007 } 1008 return imtable.Get(); 1009} 1010 1011mirror::ArtMethod* Runtime::CreateImtConflictMethod() { 1012 Thread* self = Thread::Current(); 1013 Runtime* runtime = Runtime::Current(); 1014 ClassLinker* class_linker = runtime->GetClassLinker(); 1015 StackHandleScope<1> hs(self); 1016 Handle<mirror::ArtMethod> method(hs.NewHandle(class_linker->AllocArtMethod(self))); 1017 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod()); 1018 // TODO: use a special method for imt conflict method saves. 1019 method->SetDexMethodIndex(DexFile::kDexNoIndex); 1020 // When compiling, the code pointer will get set later when the image is loaded. 1021 if (runtime->IsCompiler()) { 1022 method->SetEntryPointFromPortableCompiledCode(nullptr); 1023 method->SetEntryPointFromQuickCompiledCode(nullptr); 1024 } else { 1025 method->SetEntryPointFromPortableCompiledCode(class_linker->GetPortableImtConflictTrampoline()); 1026 method->SetEntryPointFromQuickCompiledCode(class_linker->GetQuickImtConflictTrampoline()); 1027 } 1028 return method.Get(); 1029} 1030 1031mirror::ArtMethod* Runtime::CreateResolutionMethod() { 1032 Thread* self = Thread::Current(); 1033 Runtime* runtime = Runtime::Current(); 1034 ClassLinker* class_linker = runtime->GetClassLinker(); 1035 StackHandleScope<1> hs(self); 1036 Handle<mirror::ArtMethod> method(hs.NewHandle(class_linker->AllocArtMethod(self))); 1037 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod()); 1038 // TODO: use a special method for resolution method saves 1039 method->SetDexMethodIndex(DexFile::kDexNoIndex); 1040 // When compiling, the code pointer will get set later when the image is loaded. 1041 if (runtime->IsCompiler()) { 1042 method->SetEntryPointFromPortableCompiledCode(nullptr); 1043 method->SetEntryPointFromQuickCompiledCode(nullptr); 1044 } else { 1045 method->SetEntryPointFromPortableCompiledCode(class_linker->GetPortableResolutionTrampoline()); 1046 method->SetEntryPointFromQuickCompiledCode(class_linker->GetQuickResolutionTrampoline()); 1047 } 1048 return method.Get(); 1049} 1050 1051mirror::ArtMethod* Runtime::CreateCalleeSaveMethod(CalleeSaveType type) { 1052 Thread* self = Thread::Current(); 1053 Runtime* runtime = Runtime::Current(); 1054 ClassLinker* class_linker = runtime->GetClassLinker(); 1055 StackHandleScope<1> hs(self); 1056 Handle<mirror::ArtMethod> method(hs.NewHandle(class_linker->AllocArtMethod(self))); 1057 method->SetDeclaringClass(mirror::ArtMethod::GetJavaLangReflectArtMethod()); 1058 // TODO: use a special method for callee saves 1059 method->SetDexMethodIndex(DexFile::kDexNoIndex); 1060 method->SetEntryPointFromPortableCompiledCode(nullptr); 1061 method->SetEntryPointFromQuickCompiledCode(nullptr); 1062 DCHECK_NE(instruction_set_, kNone); 1063 return method.Get(); 1064} 1065 1066void Runtime::DisallowNewSystemWeaks() { 1067 monitor_list_->DisallowNewMonitors(); 1068 intern_table_->DisallowNewInterns(); 1069 java_vm_->DisallowNewWeakGlobals(); 1070} 1071 1072void Runtime::AllowNewSystemWeaks() { 1073 monitor_list_->AllowNewMonitors(); 1074 intern_table_->AllowNewInterns(); 1075 java_vm_->AllowNewWeakGlobals(); 1076} 1077 1078void Runtime::SetInstructionSet(InstructionSet instruction_set) { 1079 instruction_set_ = instruction_set; 1080 if ((instruction_set_ == kThumb2) || (instruction_set_ == kArm)) { 1081 for (int i = 0; i != kLastCalleeSaveType; ++i) { 1082 CalleeSaveType type = static_cast<CalleeSaveType>(i); 1083 callee_save_method_frame_infos_[i] = arm::ArmCalleeSaveMethodFrameInfo(type); 1084 } 1085 } else if (instruction_set_ == kMips) { 1086 for (int i = 0; i != kLastCalleeSaveType; ++i) { 1087 CalleeSaveType type = static_cast<CalleeSaveType>(i); 1088 callee_save_method_frame_infos_[i] = mips::MipsCalleeSaveMethodFrameInfo(type); 1089 } 1090 } else if (instruction_set_ == kX86) { 1091 for (int i = 0; i != kLastCalleeSaveType; ++i) { 1092 CalleeSaveType type = static_cast<CalleeSaveType>(i); 1093 callee_save_method_frame_infos_[i] = x86::X86CalleeSaveMethodFrameInfo(type); 1094 } 1095 } else if (instruction_set_ == kX86_64) { 1096 for (int i = 0; i != kLastCalleeSaveType; ++i) { 1097 CalleeSaveType type = static_cast<CalleeSaveType>(i); 1098 callee_save_method_frame_infos_[i] = x86_64::X86_64CalleeSaveMethodFrameInfo(type); 1099 } 1100 } else if (instruction_set_ == kArm64) { 1101 for (int i = 0; i != kLastCalleeSaveType; ++i) { 1102 CalleeSaveType type = static_cast<CalleeSaveType>(i); 1103 callee_save_method_frame_infos_[i] = arm64::Arm64CalleeSaveMethodFrameInfo(type); 1104 } 1105 } else { 1106 UNIMPLEMENTED(FATAL) << instruction_set_; 1107 } 1108} 1109 1110void Runtime::SetCalleeSaveMethod(mirror::ArtMethod* method, CalleeSaveType type) { 1111 DCHECK_LT(static_cast<int>(type), static_cast<int>(kLastCalleeSaveType)); 1112 callee_save_methods_[type] = GcRoot<mirror::ArtMethod>(method); 1113} 1114 1115const std::vector<const DexFile*>& Runtime::GetCompileTimeClassPath(jobject class_loader) { 1116 if (class_loader == NULL) { 1117 return GetClassLinker()->GetBootClassPath(); 1118 } 1119 CHECK(UseCompileTimeClassPath()); 1120 CompileTimeClassPaths::const_iterator it = compile_time_class_paths_.find(class_loader); 1121 CHECK(it != compile_time_class_paths_.end()); 1122 return it->second; 1123} 1124 1125void Runtime::SetCompileTimeClassPath(jobject class_loader, 1126 std::vector<const DexFile*>& class_path) { 1127 CHECK(!IsStarted()); 1128 use_compile_time_class_path_ = true; 1129 compile_time_class_paths_.Put(class_loader, class_path); 1130} 1131 1132void Runtime::AddMethodVerifier(verifier::MethodVerifier* verifier) { 1133 DCHECK(verifier != nullptr); 1134 MutexLock mu(Thread::Current(), method_verifier_lock_); 1135 method_verifiers_.insert(verifier); 1136} 1137 1138void Runtime::RemoveMethodVerifier(verifier::MethodVerifier* verifier) { 1139 DCHECK(verifier != nullptr); 1140 MutexLock mu(Thread::Current(), method_verifier_lock_); 1141 auto it = method_verifiers_.find(verifier); 1142 CHECK(it != method_verifiers_.end()); 1143 method_verifiers_.erase(it); 1144} 1145 1146void Runtime::StartProfiler(const char* profile_output_filename) { 1147 profile_output_filename_ = profile_output_filename; 1148 profiler_started_ = 1149 BackgroundMethodSamplingProfiler::Start(profile_output_filename_, profiler_options_); 1150} 1151 1152// Transaction support. 1153void Runtime::EnterTransactionMode(Transaction* transaction) { 1154 DCHECK(IsCompiler()); 1155 DCHECK(transaction != nullptr); 1156 DCHECK(!IsActiveTransaction()); 1157 preinitialization_transaction_ = transaction; 1158} 1159 1160void Runtime::ExitTransactionMode() { 1161 DCHECK(IsCompiler()); 1162 DCHECK(IsActiveTransaction()); 1163 preinitialization_transaction_ = nullptr; 1164} 1165 1166void Runtime::RecordWriteField32(mirror::Object* obj, MemberOffset field_offset, 1167 uint32_t value, bool is_volatile) const { 1168 DCHECK(IsCompiler()); 1169 DCHECK(IsActiveTransaction()); 1170 preinitialization_transaction_->RecordWriteField32(obj, field_offset, value, is_volatile); 1171} 1172 1173void Runtime::RecordWriteField64(mirror::Object* obj, MemberOffset field_offset, 1174 uint64_t value, bool is_volatile) const { 1175 DCHECK(IsCompiler()); 1176 DCHECK(IsActiveTransaction()); 1177 preinitialization_transaction_->RecordWriteField64(obj, field_offset, value, is_volatile); 1178} 1179 1180void Runtime::RecordWriteFieldReference(mirror::Object* obj, MemberOffset field_offset, 1181 mirror::Object* value, bool is_volatile) const { 1182 DCHECK(IsCompiler()); 1183 DCHECK(IsActiveTransaction()); 1184 preinitialization_transaction_->RecordWriteFieldReference(obj, field_offset, value, is_volatile); 1185} 1186 1187void Runtime::RecordWriteArray(mirror::Array* array, size_t index, uint64_t value) const { 1188 DCHECK(IsCompiler()); 1189 DCHECK(IsActiveTransaction()); 1190 preinitialization_transaction_->RecordWriteArray(array, index, value); 1191} 1192 1193void Runtime::RecordStrongStringInsertion(mirror::String* s, uint32_t hash_code) const { 1194 DCHECK(IsCompiler()); 1195 DCHECK(IsActiveTransaction()); 1196 preinitialization_transaction_->RecordStrongStringInsertion(s, hash_code); 1197} 1198 1199void Runtime::RecordWeakStringInsertion(mirror::String* s, uint32_t hash_code) const { 1200 DCHECK(IsCompiler()); 1201 DCHECK(IsActiveTransaction()); 1202 preinitialization_transaction_->RecordWeakStringInsertion(s, hash_code); 1203} 1204 1205void Runtime::RecordStrongStringRemoval(mirror::String* s, uint32_t hash_code) const { 1206 DCHECK(IsCompiler()); 1207 DCHECK(IsActiveTransaction()); 1208 preinitialization_transaction_->RecordStrongStringRemoval(s, hash_code); 1209} 1210 1211void Runtime::RecordWeakStringRemoval(mirror::String* s, uint32_t hash_code) const { 1212 DCHECK(IsCompiler()); 1213 DCHECK(IsActiveTransaction()); 1214 preinitialization_transaction_->RecordWeakStringRemoval(s, hash_code); 1215} 1216 1217void Runtime::SetFaultMessage(const std::string& message) { 1218 MutexLock mu(Thread::Current(), fault_message_lock_); 1219 fault_message_ = message; 1220} 1221 1222void Runtime::AddCurrentRuntimeFeaturesAsDex2OatArguments(std::vector<std::string>* argv) 1223 const { 1224 if (GetInstrumentation()->InterpretOnly()) { 1225 argv->push_back("--compiler-filter=interpret-only"); 1226 } 1227 1228 // Make the dex2oat instruction set match that of the launching runtime. If we have multiple 1229 // architecture support, dex2oat may be compiled as a different instruction-set than that 1230 // currently being executed. 1231 std::string instruction_set("--instruction-set="); 1232 instruction_set += GetInstructionSetString(kRuntimeISA); 1233 argv->push_back(instruction_set); 1234 1235 std::string features("--instruction-set-features="); 1236 features += GetDefaultInstructionSetFeatures(); 1237 argv->push_back(features); 1238} 1239 1240void Runtime::UpdateProfilerState(int state) { 1241 VLOG(profiler) << "Profiler state updated to " << state; 1242} 1243} // namespace art 1244