Reland "Remove fields from Isolate in Product mode"

runtime/vm/isolate.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/isolate.h"
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 #include "platform/assert.h"
 #include "platform/text_buffer.h"
@@ skipping 126 matching lines @@
 NoOOBMessageScope::NoOOBMessageScope(Thread* thread) : StackResource(thread) {
   thread->DeferOOBMessageInterrupts();
 }
 
 NoOOBMessageScope::~NoOOBMessageScope() {
   thread()->RestoreOOBMessageInterrupts();
 }
 
 NoReloadScope::NoReloadScope(Isolate* isolate, Thread* thread)
     : StackResource(thread), isolate_(isolate) {
+#if !defined(PRODUCT)
   ASSERT(isolate_ != NULL);
   AtomicOperations::FetchAndIncrement(&(isolate_->no_reload_scope_depth_));
   ASSERT(AtomicOperations::LoadRelaxed(&(isolate_->no_reload_scope_depth_)) >=
          0);
+#endif  // !defined(PRODUCT)
 }
 
 NoReloadScope::~NoReloadScope() {
+#if !defined(PRODUCT)
   AtomicOperations::FetchAndDecrement(&(isolate_->no_reload_scope_depth_));
   ASSERT(AtomicOperations::LoadRelaxed(&(isolate_->no_reload_scope_depth_)) >=
          0);
+#endif  // !defined(PRODUCT)
 }
 
 void Isolate::RegisterClass(const Class& cls) {
 #if !defined(PRODUCT)
   if (IsReloading()) {
     reload_context()->RegisterClass(cls);
     return;
   }
 #endif  // !defined(PRODUCT)
   class_table()->Register(cls);
@@ skipping 560 matching lines @@
   reusable_##object##_handle_scope_active_(false),
 #else
 #define REUSABLE_HANDLE_SCOPE_INIT(object)
 #endif  // defined(DEBUG)
 
 #define REUSABLE_HANDLE_INITIALIZERS(object) object##_handle_(NULL),
 
 // TODO(srdjan): Some Isolate monitors can be shared. Replace their usage with
 // that shared monitor.
 Isolate::Isolate(const Dart_IsolateFlags& api_flags)
-    : store_buffer_(new StoreBuffer()),
+    : BaseIsolate(),
+      store_buffer_(new StoreBuffer()),
       heap_(NULL),
       user_tag_(0),
       current_tag_(UserTag::null()),
       default_tag_(UserTag::null()),
+      ic_miss_code_(Code::null()),
       object_store_(NULL),
       class_table_(),
       single_step_(false),
+      errors_fatal_(true),
+      is_runnable_(false),
+      is_service_isolate_(false),
+      compilation_allowed_(true),
+      all_classes_finalized_(false),
+      remapping_cids_(false),
+#if !defined(PRODUCT)
+      resume_request_(false),
+      has_attempted_reload_(false),
+      should_pause_post_service_request_(false),
+      debugger_name_(NULL),
+      start_time_micros_(OS::GetCurrentMonotonicMicros()),
+      debugger_(NULL),
+      last_resume_timestamp_(OS::GetCurrentTimeMillis()),
+      last_allocationprofile_accumulator_reset_timestamp_(0),
+      last_allocationprofile_gc_timestamp_(0),
+      vm_tag_counters_(),
+      pending_service_extension_calls_(GrowableObjectArray::null()),
+      registered_service_extension_handlers_(GrowableObjectArray::null()),
+      metrics_list_head_(NULL),
+      pause_loop_monitor_(NULL),
+#define ISOLATE_METRIC_CONSTRUCTORS(type, variable, name, unit)                \
+  metric_##variable##_(),
+      ISOLATE_METRIC_LIST(ISOLATE_METRIC_CONSTRUCTORS)
+#undef ISOLATE_METRIC_CONSTRUCTORS
+          no_reload_scope_depth_(0),
+      reload_every_n_stack_overflow_checks_(FLAG_reload_every),
+      reload_context_(NULL),
+      last_reload_timestamp_(OS::GetCurrentTimeMillis()),
+      object_id_ring_(NULL),
+#endif  // !defined(PRODUCT)
       thread_registry_(new ThreadRegistry()),
       safepoint_handler_(new SafepointHandler(this)),
       message_notify_callback_(NULL),
       name_(NULL),
-      debugger_name_(NULL),
-      start_time_micros_(OS::GetCurrentMonotonicMicros()),
       main_port_(0),
       origin_id_(0),
       pause_capability_(0),
       terminate_capability_(0),
-      errors_fatal_(true),
       init_callback_data_(NULL),
       environment_callback_(NULL),
       library_tag_handler_(NULL),
       api_state_(NULL),
-#if !defined(PRODUCT)
-      debugger_(NULL),
-      resume_request_(false),
-      last_resume_timestamp_(OS::GetCurrentTimeMillis()),
-#endif
       random_(),
       simulator_(NULL),
       mutex_(new Mutex()),
       symbols_mutex_(new Mutex()),
       type_canonicalization_mutex_(new Mutex()),
       constant_canonicalization_mutex_(new Mutex()),
       megamorphic_lookup_mutex_(new Mutex()),
       message_handler_(NULL),
       spawn_state_(NULL),
-      is_runnable_(false),
       gc_prologue_callback_(NULL),
       gc_epilogue_callback_(NULL),
       defer_finalization_count_(0),
       pending_deopts_(new MallocGrowableArray<PendingLazyDeopt>),
       deopt_context_(NULL),
-      is_service_isolate_(false),
-      last_allocationprofile_accumulator_reset_timestamp_(0),
-      last_allocationprofile_gc_timestamp_(0),
-      object_id_ring_(NULL),
       tag_table_(GrowableObjectArray::null()),
       deoptimized_code_array_(GrowableObjectArray::null()),
       sticky_error_(Error::null()),
       background_compiler_(NULL),
       background_compiler_disabled_depth_(0),
-      pending_service_extension_calls_(GrowableObjectArray::null()),
-      registered_service_extension_handlers_(GrowableObjectArray::null()),
-      metrics_list_head_(NULL),
-      compilation_allowed_(true),
-      all_classes_finalized_(false),
-      remapping_cids_(false),
       next_(NULL),
-      pause_loop_monitor_(NULL),
       loading_invalidation_gen_(kInvalidGen),
       top_level_parsing_count_(0),
       field_list_mutex_(new Mutex()),
       boxed_field_list_(GrowableObjectArray::null()),
       spawn_count_monitor_(new Monitor()),
       spawn_count_(0),
-#define ISOLATE_METRIC_CONSTRUCTORS(type, variable, name, unit)                \
-  metric_##variable##_(),
-      ISOLATE_METRIC_LIST(ISOLATE_METRIC_CONSTRUCTORS)
-#undef ISOLATE_METRIC_CONSTRUCTORS
-          has_attempted_reload_(false),
-      no_reload_scope_depth_(0),
-      reload_every_n_stack_overflow_checks_(FLAG_reload_every),
-      reload_context_(NULL),
-      last_reload_timestamp_(OS::GetCurrentTimeMillis()),
-      should_pause_post_service_request_(false),
-      handler_info_cache_() {
+      handler_info_cache_(),
+      catch_entry_state_cache_() {
   NOT_IN_PRODUCT(FlagsCopyFrom(api_flags));
   // TODO(asiva): A Thread is not available here, need to figure out
   // how the vm_tag (kEmbedderTagId) can be set, these tags need to
   // move to the OSThread structure.
   set_user_tag(UserTags::kDefaultUserTag);
 }
 
 #undef REUSABLE_HANDLE_SCOPE_INIT
 #undef REUSABLE_HANDLE_INITIALIZERS
 
 Isolate::~Isolate() {
+#if !defined(PRODUCT)
+  free(debugger_name_);
+  delete debugger_;
+  if (FLAG_support_service) {
+    delete object_id_ring_;
+  }
+  object_id_ring_ = NULL;
+  delete pause_loop_monitor_;
+  pause_loop_monitor_ = NULL;
+#endif  // !defined(PRODUCT)
+
   free(name_);
-  free(debugger_name_);
   delete store_buffer_;
   delete heap_;
   delete object_store_;
   delete api_state_;
-#ifndef PRODUCT
-  delete debugger_;
-#endif  // !PRODUCT
 #if defined(USING_SIMULATOR)
   delete simulator_;
 #endif
   delete mutex_;
   mutex_ = NULL;  // Fail fast if interrupts are scheduled on a dead isolate.
   delete symbols_mutex_;
   symbols_mutex_ = NULL;
   delete type_canonicalization_mutex_;
   type_canonicalization_mutex_ = NULL;
   delete constant_canonicalization_mutex_;
   constant_canonicalization_mutex_ = NULL;
   delete megamorphic_lookup_mutex_;
   megamorphic_lookup_mutex_ = NULL;
   delete pending_deopts_;
   pending_deopts_ = NULL;
   delete message_handler_;
   message_handler_ = NULL;  // Fail fast if we send messages to a dead isolate.
   ASSERT(deopt_context_ == NULL);  // No deopt in progress when isolate deleted.
   delete spawn_state_;
-#ifndef PRODUCT
-  if (FLAG_support_service) {
-    delete object_id_ring_;
-  }
-#endif  // !PRODUCT
-  object_id_ring_ = NULL;
-  delete pause_loop_monitor_;
-  pause_loop_monitor_ = NULL;
   delete field_list_mutex_;
   field_list_mutex_ = NULL;
   ASSERT(spawn_count_ == 0);
   delete spawn_count_monitor_;
   delete safepoint_handler_;
   delete thread_registry_;
 }
 
 void Isolate::InitOnce() {
   create_callback_ = NULL;
   isolates_list_monitor_ = new Monitor();
   ASSERT(isolates_list_monitor_ != NULL);
   EnableIsolateCreation();
 }
 
 Isolate* Isolate::Init(const char* name_prefix,
                        const Dart_IsolateFlags& api_flags,
                        bool is_vm_isolate) {
   Isolate* result = new Isolate(api_flags);
   ASSERT(result != NULL);
 
+#if !defined(PRODUCT)
 // Initialize metrics.
 #define ISOLATE_METRIC_INIT(type, variable, name, unit)                        \
   result->metric_##variable##_.Init(result, name, NULL, Metric::unit);
   ISOLATE_METRIC_LIST(ISOLATE_METRIC_INIT);
 #undef ISOLATE_METRIC_INIT
+#endif  // !defined(PRODUCT)
 
   Heap::Init(result,
              is_vm_isolate
                  ? 0  // New gen size 0; VM isolate should only allocate in old.
                  : FLAG_new_gen_semi_max_size * MBInWords,
              FLAG_old_gen_heap_size * MBInWords,
              FLAG_external_max_size * MBInWords);
 
   // TODO(5411455): For now just set the recently created isolate as
   // the current isolate.
@@ skipping 69 matching lines @@
 void Isolate::ScheduleMessageInterrupts() {
   // We take the threads lock here to ensure that the mutator thread does not
   // exit the isolate while we are trying to schedule interrupts on it.
   MonitorLocker ml(threads_lock());
   Thread* mthread = mutator_thread();
   if (mthread != NULL) {
     mthread->ScheduleInterrupts(Thread::kMessageInterrupt);
   }
 }
 
+#if !defined(PRODUCT)
 void Isolate::set_debugger_name(const char* name) {
   free(debugger_name_);
   debugger_name_ = strdup(name);
 }
 
 int64_t Isolate::UptimeMicros() const {
   return OS::GetCurrentMonotonicMicros() - start_time_micros_;
 }
+#endif  // !defined(PRODUCT)
 
 bool Isolate::IsPaused() const {
 #if defined(PRODUCT)
   return false;
 #else
   return (debugger_ != NULL) && (debugger_->PauseEvent() != NULL);
-#endif
+#endif  // !defined(PRODUCT)
 }
 
 RawError* Isolate::PausePostRequest() {
 #if !defined(PRODUCT)
   if (debugger_ == NULL) {
     return Error::null();
   }
   ASSERT(!IsPaused());
   const Error& error = Error::Handle(debugger_->PausePostRequest());
   if (!error.IsNull()) {
     if (Thread::Current()->top_exit_frame_info() == 0) {
       return error.raw();
     } else {
       Exceptions::PropagateError(error);
       UNREACHABLE();
     }
   }
 #endif
   return Error::null();
 }
 
 void Isolate::BuildName(const char* name_prefix) {
   ASSERT(name_ == NULL);
   if (name_prefix == NULL) {
     name_prefix = "isolate";
   }
-  set_debugger_name(name_prefix);
+  NOT_IN_PRODUCT(set_debugger_name(name_prefix));
   if (ServiceIsolate::NameEquals(name_prefix)) {
     name_ = strdup(name_prefix);
     return;
   }
   name_ = OS::SCreate(NULL, "%s-%" Pd64 "", name_prefix, main_port());
 }
 
 void Isolate::DoneLoading() {
   GrowableObjectArray& libs =
       GrowableObjectArray::Handle(current_zone(), object_store()->libraries());
   Library& lib = Library::Handle(current_zone());
   intptr_t num_libs = libs.Length();
   for (intptr_t i = 0; i < num_libs; i++) {
     lib ^= libs.At(i);
     // If this library was loaded with Dart_LoadLibrary, it was marked
     // as 'load in progres'. Set the status to 'loaded'.
     if (lib.LoadInProgress()) {
       lib.SetLoaded();
     }
   }
   TokenStream::CloseSharedTokenList(this);
 }
 
+#if !defined(PRODUCT)
 bool Isolate::CanReload() const {
-#ifndef PRODUCT
   return !ServiceIsolate::IsServiceIsolateDescendant(this) && is_runnable() &&
          !IsReloading() &&
          (AtomicOperations::LoadRelaxed(&no_reload_scope_depth_) == 0) &&
          IsolateCreationEnabled();
-#else
-  return false;
-#endif
 }
 
-#ifndef PRODUCT
 bool Isolate::ReloadSources(JSONStream* js,
                             bool force_reload,
                             const char* root_script_url,
                             const char* packages_url,
                             bool dont_delete_reload_context) {
   ASSERT(!IsReloading());
   has_attempted_reload_ = true;
   reload_context_ = new IsolateReloadContext(this, js);
   reload_context_->Reload(force_reload, root_script_url, packages_url);
   bool success = !reload_context_->reload_aborted();
   if (!dont_delete_reload_context) {
     DeleteReloadContext();
   }
   return success;
 }
 
 void Isolate::DeleteReloadContext() {
   // Another thread may be in the middle of GetClassForHeapWalkAt.
   Thread* thread = Thread::Current();
   SafepointOperationScope safepoint_scope(thread);
 
   delete reload_context_;
   reload_context_ = NULL;
 }
-#endif  // !PRODUCT
+#endif  // !defined(PRODUCT)
 
 void Isolate::DoneFinalizing() {
 #if !defined(PRODUCT)
   if (IsReloading()) {
     reload_context_->FinalizeLoading();
   }
 #endif  // !defined(PRODUCT)
 }
 
 bool Isolate::MakeRunnable() {
@@ skipping 28 matching lines @@
     TimelineEvent* event = stream->StartEvent();
     if (event != NULL) {
       event->Instant("Runnable");
       event->Complete();
     }
   }
   if (FLAG_support_service && Service::isolate_stream.enabled()) {
     ServiceEvent runnableEvent(this, ServiceEvent::kIsolateRunnable);
     Service::HandleEvent(&runnableEvent);
   }
-#endif  // !PRODUCT
   GetRunnableLatencyMetric()->set_value(UptimeMicros());
   if (FLAG_print_benchmarking_metrics) {
     {
       StartIsolateScope scope(this);
       heap()->CollectAllGarbage();
     }
     int64_t heap_size = (heap()->UsedInWords(Heap::kNew) * kWordSize) +
                         (heap()->UsedInWords(Heap::kOld) * kWordSize);
     GetRunnableHeapSizeMetric()->set_value(heap_size);
   }
+#endif  // !PRODUCT
   return true;
 }
 
 bool Isolate::VerifyPauseCapability(const Object& capability) const {
   return !capability.IsNull() && capability.IsCapability() &&
          (pause_capability() == Capability::Cast(capability).Id());
 }
 
 bool Isolate::VerifyTerminateCapability(const Object& capability) const {
   return !capability.IsNull() && capability.IsCapability() &&
@@ skipping 443 matching lines @@
   if (FLAG_support_timeline && FLAG_timing) {
     TimelinePauseTrace tpt;
     tpt.Print();
   }
 #endif  // !PRODUCT
 
   // Finalize any weak persistent handles with a non-null referent.
   FinalizeWeakPersistentHandlesVisitor visitor;
   api_state()->weak_persistent_handles().VisitHandles(&visitor);
 
+#if !defined(PRODUCT)
   if (FLAG_dump_megamorphic_stats) {
     MegamorphicCacheTable::PrintSizes(this);
   }
   if (FLAG_dump_symbol_stats) {
     Symbols::DumpStats(this);
   }
   if (FLAG_trace_isolates) {
     heap()->PrintSizes();
     OS::Print(
         "[-] Stopping isolate:\n"
         "\tisolate:    %s\n",
         name());
   }
   if (FLAG_print_metrics || FLAG_print_benchmarking_metrics) {
     LogBlock lb;
     OS::PrintErr("Printing metrics for %s\n", name());
 #define ISOLATE_METRIC_PRINT(type, variable, name, unit)                       \
   OS::PrintErr("%s\n", metric_##variable##_.ToString());
     ISOLATE_METRIC_LIST(ISOLATE_METRIC_PRINT)
 #undef ISOLATE_METRIC_PRINT
     OS::PrintErr("\n");
   }
+#endif  // !defined(PRODUCT)
 }
 
 void Isolate::StopBackgroundCompiler() {
   // Wait until all background compilation has finished.
   if (background_compiler_ != NULL) {
     BackgroundCompiler::Stop(this);
   }
 }
 
+#if !defined(PRODUCT)
 void Isolate::MaybeIncreaseReloadEveryNStackOverflowChecks() {
   if (FLAG_reload_every_back_off) {
     if (reload_every_n_stack_overflow_checks_ < 5000) {
       reload_every_n_stack_overflow_checks_ += 99;
     } else {
       reload_every_n_stack_overflow_checks_ *= 2;
     }
     // Cap the value.
     if (reload_every_n_stack_overflow_checks_ > 1000000) {
       reload_every_n_stack_overflow_checks_ = 1000000;
     }
   }
 }
+#endif  // !defined(PRODUCT)
 
 void Isolate::Shutdown() {
   ASSERT(this == Isolate::Current());
   StopBackgroundCompiler();
 
 #if defined(DEBUG)
   if (heap_ != NULL && FLAG_verify_on_transition) {
     // The VM isolate keeps all objects marked.
     heap_->Verify(this == Dart::vm_isolate() ? kRequireMarked : kForbidMarked);
   }
@@ skipping 25 matching lines @@
   if (heap_ != NULL) {
     // Wait for any concurrent GC tasks to finish before shutting down.
     // TODO(koda): Support faster sweeper shutdown (e.g., after current page).
     PageSpace* old_space = heap_->old_space();
     MonitorLocker ml(old_space->tasks_lock());
     while (old_space->tasks() > 0) {
       ml.Wait();
     }
   }
 
+#if !defined(PRODUCT)
   if (FLAG_check_reloaded && is_runnable() && (this != Dart::vm_isolate()) &&
       !ServiceIsolate::IsServiceIsolateDescendant(this)) {
     if (!HasAttemptedReload()) {
       FATAL(
           "Isolate did not reload before exiting and "
           "--check-reloaded is enabled.\n");
     }
   }
+#endif  // !defined(PRODUCT)
 
   // Then, proceed with low-level teardown.
   LowLevelShutdown();
 
 #if defined(DEBUG)
   // No concurrent sweeper tasks should be running at this point.
   if (heap_ != NULL) {
     PageSpace* old_space = heap_->old_space();
     MonitorLocker ml(old_space->tasks_lock());
     ASSERT(old_space->tasks() == 0);
@@ skipping 60 matching lines @@
   if (background_compiler() != NULL) {
     background_compiler()->VisitPointers(visitor);
   }
 
   // Visit the deoptimized code array which is stored in the isolate.
   visitor->VisitPointer(
       reinterpret_cast<RawObject**>(&deoptimized_code_array_));
 
   visitor->VisitPointer(reinterpret_cast<RawObject**>(&sticky_error_));
 
+#if !defined(PRODUCT)
   // Visit the pending service extension calls.
   visitor->VisitPointer(
       reinterpret_cast<RawObject**>(&pending_service_extension_calls_));
 
   // Visit the registered service extension handlers.
   visitor->VisitPointer(
       reinterpret_cast<RawObject**>(&registered_service_extension_handlers_));
+#endif  // !defined(PRODUCT)
 
   // Visit the boxed_field_list_.
   // 'boxed_field_list_' access via mutator and background compilation threads
   // is guarded with a monitor. This means that we can visit it only
   // when at safepoint or the field_list_mutex_ lock has been taken.
   visitor->VisitPointer(reinterpret_cast<RawObject**>(&boxed_field_list_));
 
 #if !defined(PRODUCT)
   // Visit objects in the debugger.
   debugger()->VisitObjectPointers(visitor);
@@ skipping 268 matching lines @@
   }
   // TODO(johnmccutchan): Scan this array and the isolate's profile before
   // old space GC and remove the keep_code flag.
   deoptimized_code.Add(code);
 }
 
 void Isolate::clear_sticky_error() {
   sticky_error_ = Error::null();
 }
 
+#if !defined(PRODUCT)
 void Isolate::set_pending_service_extension_calls(
     const GrowableObjectArray& value) {
   pending_service_extension_calls_ = value.raw();
 }
 
 void Isolate::set_registered_service_extension_handlers(
     const GrowableObjectArray& value) {
   registered_service_extension_handlers_ = value.raw();
 }
+#endif  // !defined(PRODUCT)
 
 void Isolate::AddDeoptimizingBoxedField(const Field& field) {
   ASSERT(Compiler::IsBackgroundCompilation());
   ASSERT(!field.IsOriginal());
   // The enclosed code allocates objects and can potentially trigger a GC,
   // ensure that we account for safepoints when grabbing the lock.
   SafepointMutexLocker ml(field_list_mutex_);
   if (boxed_field_list_ == GrowableObjectArray::null()) {
     boxed_field_list_ = GrowableObjectArray::New(Heap::kOld);
   }
@@ skipping 745 matching lines @@
 void IsolateSpawnState::DecrementSpawnCount() {
   ASSERT(spawn_count_monitor_ != NULL);
   ASSERT(spawn_count_ != NULL);
   MonitorLocker ml(spawn_count_monitor_);
   ASSERT(*spawn_count_ > 0);
   *spawn_count_ = *spawn_count_ - 1;
   ml.Notify();
 }
 
 }  // namespace dart