Version 5.5.228.1 (cherry-pick)

src/d8.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+
+// Defined when linking against shared lib on Windows.
+#if defined(USING_V8_SHARED) && !defined(V8_SHARED)
+#define V8_SHARED
+#endif
+
 #include <errno.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>
 
+#ifdef V8_SHARED
+#include <assert.h>
+#endif  // V8_SHARED
+
+#ifndef V8_SHARED
 #include <algorithm>
 #include <fstream>
 #include <vector>
+#endif  // !V8_SHARED
+
+#ifdef V8_SHARED
+#include "include/v8-testing.h"
+#endif  // V8_SHARED
 
 #ifdef ENABLE_VTUNE_JIT_INTERFACE
 #include "src/third_party/vtune/v8-vtune.h"
 #endif
 
 #include "src/d8.h"
 #include "src/ostreams.h"
 
 #include "include/libplatform/libplatform.h"
 #include "include/libplatform/v8-tracing.h"
+#ifndef V8_SHARED
 #include "src/api.h"
 #include "src/base/cpu.h"
 #include "src/base/debug/stack_trace.h"
 #include "src/base/logging.h"
 #include "src/base/platform/platform.h"
 #include "src/base/sys-info.h"
 #include "src/basic-block-profiler.h"
 #include "src/interpreter/interpreter.h"
 #include "src/snapshot/natives.h"
 #include "src/utils.h"
 #include "src/v8.h"
+#endif  // !V8_SHARED
 
 #if !defined(_WIN32) && !defined(_WIN64)
 #include <unistd.h>  // NOLINT
 #else
 #include <windows.h>  // NOLINT
 #if defined(_MSC_VER)
 #include <crtdbg.h>  // NOLINT
 #endif               // defined(_MSC_VER)
 #endif               // !defined(_WIN32) && !defined(_WIN64)
 
 #ifndef DCHECK
 #define DCHECK(condition) assert(condition)
 #endif
 
 #ifndef CHECK
 #define CHECK(condition) assert(condition)
 #endif
 
 namespace v8 {
 
 namespace {
 
 const int MB = 1024 * 1024;
+#ifndef V8_SHARED
 const int kMaxWorkers = 50;
+#endif
 
 
 class ShellArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
  public:
   virtual void* Allocate(size_t length) {
     void* data = AllocateUninitialized(length);
     return data == NULL ? data : memset(data, 0, length);
   }
   virtual void* AllocateUninitialized(size_t length) { return malloc(length); }
   virtual void Free(void* data, size_t) { free(data); }
 };
 
 
 class MockArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
  public:
   void* Allocate(size_t length) override {
     size_t actual_length = length > 10 * MB ? 1 : length;
     void* data = AllocateUninitialized(actual_length);
     return data == NULL ? data : memset(data, 0, actual_length);
   }
   void* AllocateUninitialized(size_t length) override {
     return length > 10 * MB ? malloc(1) : malloc(length);
   }
   void Free(void* p, size_t) override { free(p); }
 };
 
 
+#ifndef V8_SHARED
 // Predictable v8::Platform implementation. All background and foreground
 // tasks are run immediately, delayed tasks are not executed at all.
 class PredictablePlatform : public Platform {
  public:
   PredictablePlatform() {}
 
   void CallOnBackgroundThread(Task* task,
                               ExpectedRuntime expected_runtime) override {
     task->Run();
     delete task;
@@ skipping 40 matching lines @@
       const uint8_t* categoryEnabledFlag) override {
     static const char* dummy = "dummy";
     return dummy;
   }
 
  private:
   double synthetic_time_in_sec_ = 0.0;
 
   DISALLOW_COPY_AND_ASSIGN(PredictablePlatform);
 };
+#endif  // !V8_SHARED
 
 
 v8::Platform* g_platform = NULL;
 
 
 static Local<Value> Throw(Isolate* isolate, const char* message) {
   return isolate->ThrowException(
       String::NewFromUtf8(isolate, message, NewStringType::kNormal)
           .ToLocalChecked());
 }
 
 
+#ifndef V8_SHARED
 bool FindInObjectList(Local<Object> object, const Shell::ObjectList& list) {
   for (int i = 0; i < list.length(); ++i) {
     if (list[i]->StrictEquals(object)) {
       return true;
     }
   }
   return false;
 }
 
 
 Worker* GetWorkerFromInternalField(Isolate* isolate, Local<Object> object) {
   if (object->InternalFieldCount() != 1) {
     Throw(isolate, "this is not a Worker");
     return NULL;
   }
 
   Worker* worker =
       static_cast<Worker*>(object->GetAlignedPointerFromInternalField(0));
   if (worker == NULL) {
     Throw(isolate, "Worker is defunct because main thread is terminating");
     return NULL;
   }
 
   return worker;
 }
+#endif  // !V8_SHARED
 
 
 }  // namespace
 
 namespace tracing {
 
 namespace {
 
 // String options that can be used to initialize TraceOptions.
 const char kRecordUntilFull[] = "record-until-full";
@@ skipping 147 matching lines @@
   int realm_switch_;
   Global<Context>* realms_;
   Global<Value> realm_shared_;
 
   int RealmIndexOrThrow(const v8::FunctionCallbackInfo<v8::Value>& args,
                         int arg_offset);
   int RealmFind(Local<Context> context);
 };
 
 
+#ifndef V8_SHARED
 CounterMap* Shell::counter_map_;
 base::OS::MemoryMappedFile* Shell::counters_file_ = NULL;
 CounterCollection Shell::local_counters_;
 CounterCollection* Shell::counters_ = &local_counters_;
 base::LazyMutex Shell::context_mutex_;
 const base::TimeTicks Shell::kInitialTicks =
     base::TimeTicks::HighResolutionNow();
 Global<Function> Shell::stringify_function_;
 base::LazyMutex Shell::workers_mutex_;
 bool Shell::allow_new_workers_ = true;
 i::List<Worker*> Shell::workers_;
 i::List<SharedArrayBuffer::Contents> Shell::externalized_shared_contents_;
+#endif  // !V8_SHARED
 
 Global<Context> Shell::evaluation_context_;
 ArrayBuffer::Allocator* Shell::array_buffer_allocator;
 ShellOptions Shell::options;
 base::OnceType Shell::quit_once_ = V8_ONCE_INIT;
 
+#ifndef V8_SHARED
 bool CounterMap::Match(void* key1, void* key2) {
   const char* name1 = reinterpret_cast<const char*>(key1);
   const char* name2 = reinterpret_cast<const char*>(key2);
   return strcmp(name1, name2) == 0;
 }
+#endif  // !V8_SHARED
 
 
 // Converts a V8 value to a C string.
 const char* Shell::ToCString(const v8::String::Utf8Value& value) {
   return *value ? *value : "<string conversion failed>";
 }
 
 
 ScriptCompiler::CachedData* CompileForCachedData(
     Local<String> source, Local<Value> name,
@@ skipping 120 matching lines @@
   }
   Local<Value> result;
   if (!maybe_result.ToLocal(&result)) {
     DCHECK(try_catch.HasCaught());
     // Print errors that happened during execution.
     if (report_exceptions) ReportException(isolate, &try_catch);
     return false;
   }
   DCHECK(!try_catch.HasCaught());
   if (print_result) {
+#if !defined(V8_SHARED)
     if (options.test_shell) {
+#endif
       if (!result->IsUndefined()) {
         // If all went well and the result wasn't undefined then print
         // the returned value.
         v8::String::Utf8Value str(result);
         fwrite(*str, sizeof(**str), str.length(), stdout);
         printf("\n");
       }
+#if !defined(V8_SHARED)
     } else {
       v8::String::Utf8Value str(Stringify(isolate, result));
       fwrite(*str, sizeof(**str), str.length(), stdout);
       printf("\n");
     }
+#endif
   }
   return true;
 }
 
 
 PerIsolateData::RealmScope::RealmScope(PerIsolateData* data) : data_(data) {
   data_->realm_count_ = 1;
   data_->realm_current_ = 0;
   data_->realm_switch_ = 0;
   data_->realms_ = new Global<Context>[1];
@@ skipping 31 matching lines @@
                   ->Int32Value(args.GetIsolate()->GetCurrentContext())
                   .FromMaybe(-1);
   if (index < 0 || index >= realm_count_ || realms_[index].IsEmpty()) {
     Throw(args.GetIsolate(), "Invalid realm index");
     return -1;
   }
   return index;
 }
 
 
+#ifndef V8_SHARED
 // performance.now() returns a time stamp as double, measured in milliseconds.
 // When FLAG_verify_predictable mode is enabled it returns result of
 // v8::Platform::MonotonicallyIncreasingTime().
 void Shell::PerformanceNow(const v8::FunctionCallbackInfo<v8::Value>& args) {
   if (i::FLAG_verify_predictable) {
     args.GetReturnValue().Set(g_platform->MonotonicallyIncreasingTime());
   } else {
     base::TimeDelta delta =
         base::TimeTicks::HighResolutionNow() - kInitialTicks;
     args.GetReturnValue().Set(delta.InMillisecondsF());
   }
 }
+#endif  // !V8_SHARED
 
 
 // Realm.current() returns the index of the currently active realm.
 void Shell::RealmCurrent(const v8::FunctionCallbackInfo<v8::Value>& args) {
   Isolate* isolate = args.GetIsolate();
   PerIsolateData* data = PerIsolateData::Get(isolate);
   int index = data->RealmFind(isolate->GetEnteredContext());
   if (index == -1) return;
   args.GetReturnValue().Set(index);
 }
@@ skipping 250 matching lines @@
             String::NewFromUtf8(args.GetIsolate(), *file,
                                 NewStringType::kNormal).ToLocalChecked(),
             false, true)) {
       Throw(args.GetIsolate(), "Error executing file");
       return;
     }
   }
 }
 
 
+#ifndef V8_SHARED
 void Shell::WorkerNew(const v8::FunctionCallbackInfo<v8::Value>& args) {
   Isolate* isolate = args.GetIsolate();
   HandleScope handle_scope(isolate);
   if (args.Length() < 1 || !args[0]->IsString()) {
     Throw(args.GetIsolate(), "1st argument must be string");
     return;
   }
 
   if (!args.IsConstructCall()) {
     Throw(args.GetIsolate(), "Worker must be constructed with new");
@@ skipping 101 matching lines @@
 void Shell::WorkerTerminate(const v8::FunctionCallbackInfo<v8::Value>& args) {
   Isolate* isolate = args.GetIsolate();
   HandleScope handle_scope(isolate);
   Worker* worker = GetWorkerFromInternalField(isolate, args.Holder());
   if (!worker) {
     return;
   }
 
   worker->Terminate();
 }
+#endif  // !V8_SHARED
 
 
 void Shell::QuitOnce(v8::FunctionCallbackInfo<v8::Value>* args) {
   int exit_code = (*args)[0]
                       ->Int32Value(args->GetIsolate()->GetCurrentContext())
                       .FromMaybe(0);
+#ifndef V8_SHARED
   CleanupWorkers();
+#endif  // !V8_SHARED
   OnExit(args->GetIsolate());
   Exit(exit_code);
 }
 
 
 void Shell::Quit(const v8::FunctionCallbackInfo<v8::Value>& args) {
   base::CallOnce(&quit_once_, &QuitOnce,
                  const_cast<v8::FunctionCallbackInfo<v8::Value>*>(&args));
 }
 
 
 void Shell::Version(const v8::FunctionCallbackInfo<v8::Value>& args) {
   args.GetReturnValue().Set(
       String::NewFromUtf8(args.GetIsolate(), V8::GetVersion(),
                           NewStringType::kNormal).ToLocalChecked());
 }
 
 
 void Shell::ReportException(Isolate* isolate, v8::TryCatch* try_catch) {
   HandleScope handle_scope(isolate);
+#ifndef V8_SHARED
   Local<Context> context;
   bool enter_context = !isolate->InContext();
   if (enter_context) {
     context = Local<Context>::New(isolate, evaluation_context_);
     context->Enter();
   }
+#endif  // !V8_SHARED
   v8::String::Utf8Value exception(try_catch->Exception());
   const char* exception_string = ToCString(exception);
   Local<Message> message = try_catch->Message();
   if (message.IsEmpty()) {
     // V8 didn't provide any extra information about this error; just
     // print the exception.
     printf("%s\n", exception_string);
   } else {
     // Print (filename):(line number): (message).
     v8::String::Utf8Value filename(message->GetScriptOrigin().ResourceName());
@@ skipping 23 matching lines @@
     Local<Value> stack_trace_string;
     if (try_catch->StackTrace(isolate->GetCurrentContext())
             .ToLocal(&stack_trace_string) &&
         stack_trace_string->IsString()) {
       v8::String::Utf8Value stack_trace(
           Local<String>::Cast(stack_trace_string));
       printf("%s\n", ToCString(stack_trace));
     }
   }
   printf("\n");
+#ifndef V8_SHARED
   if (enter_context) context->Exit();
+#endif  // !V8_SHARED
 }
 
 
+#ifndef V8_SHARED
 int32_t* Counter::Bind(const char* name, bool is_histogram) {
   int i;
   for (i = 0; i < kMaxNameSize - 1 && name[i]; i++)
     name_[i] = static_cast<char>(name[i]);
   name_[i] = '\0';
   is_histogram_ = is_histogram;
   return ptr();
 }
 
 
@@ skipping 108 matching lines @@
     stringify_function_.Reset(
         isolate, script->Run(context).ToLocalChecked().As<Function>());
   }
   Local<Function> fun = Local<Function>::New(isolate, stringify_function_);
   Local<Value> argv[1] = {value};
   v8::TryCatch try_catch(isolate);
   MaybeLocal<Value> result = fun->Call(context, Undefined(isolate), 1, argv);
   if (result.IsEmpty()) return String::Empty(isolate);
   return result.ToLocalChecked().As<String>();
 }
+#endif  // !V8_SHARED
 
 
 Local<ObjectTemplate> Shell::CreateGlobalTemplate(Isolate* isolate) {
   Local<ObjectTemplate> global_template = ObjectTemplate::New(isolate);
   global_template->Set(
       String::NewFromUtf8(isolate, "print", NewStringType::kNormal)
           .ToLocalChecked(),
       FunctionTemplate::New(isolate, Print));
   global_template->Set(
       String::NewFromUtf8(isolate, "write", NewStringType::kNormal)
@@ skipping 70 matching lines @@
       FunctionTemplate::New(isolate, RealmEval));
   realm_template->SetAccessor(
       String::NewFromUtf8(isolate, "shared", NewStringType::kNormal)
           .ToLocalChecked(),
       RealmSharedGet, RealmSharedSet);
   global_template->Set(
       String::NewFromUtf8(isolate, "Realm", NewStringType::kNormal)
           .ToLocalChecked(),
       realm_template);
 
+#ifndef V8_SHARED
   Local<ObjectTemplate> performance_template = ObjectTemplate::New(isolate);
   performance_template->Set(
       String::NewFromUtf8(isolate, "now", NewStringType::kNormal)
           .ToLocalChecked(),
       FunctionTemplate::New(isolate, PerformanceNow));
   global_template->Set(
       String::NewFromUtf8(isolate, "performance", NewStringType::kNormal)
           .ToLocalChecked(),
       performance_template);
 
@@ skipping 18 matching lines @@
   worker_fun_template->PrototypeTemplate()->Set(
       String::NewFromUtf8(isolate, "getMessage", NewStringType::kNormal)
           .ToLocalChecked(),
       FunctionTemplate::New(isolate, WorkerGetMessage, Local<Value>(),
                             worker_signature));
   worker_fun_template->InstanceTemplate()->SetInternalFieldCount(1);
   global_template->Set(
       String::NewFromUtf8(isolate, "Worker", NewStringType::kNormal)
           .ToLocalChecked(),
       worker_fun_template);
+#endif  // !V8_SHARED
 
   Local<ObjectTemplate> os_templ = ObjectTemplate::New(isolate);
   AddOSMethods(isolate, os_templ);
   global_template->Set(
       String::NewFromUtf8(isolate, "os", NewStringType::kNormal)
           .ToLocalChecked(),
       os_templ);
 
   return global_template;
 }
 
 static void EmptyMessageCallback(Local<Message> message, Local<Value> error) {
   // Nothing to be done here, exceptions thrown up to the shell will be reported
   // separately by {Shell::ReportException} after they are caught.
 }
 
 void Shell::Initialize(Isolate* isolate) {
+#ifndef V8_SHARED
   // Set up counters
   if (i::StrLength(i::FLAG_map_counters) != 0)
     MapCounters(isolate, i::FLAG_map_counters);
+#endif  // !V8_SHARED
   // Disable default message reporting.
   isolate->AddMessageListener(EmptyMessageCallback);
 }
 
 
 Local<Context> Shell::CreateEvaluationContext(Isolate* isolate) {
+#ifndef V8_SHARED
   // This needs to be a critical section since this is not thread-safe
   base::LockGuard<base::Mutex> lock_guard(context_mutex_.Pointer());
+#endif  // !V8_SHARED
   // Initialize the global objects
   Local<ObjectTemplate> global_template = CreateGlobalTemplate(isolate);
   EscapableHandleScope handle_scope(isolate);
   Local<Context> context = Context::New(isolate, NULL, global_template);
   DCHECK(!context.IsEmpty());
   Context::Scope scope(context);
 
+#ifndef V8_SHARED
   i::Factory* factory = reinterpret_cast<i::Isolate*>(isolate)->factory();
   i::JSArguments js_args = i::FLAG_js_arguments;
   i::Handle<i::FixedArray> arguments_array =
       factory->NewFixedArray(js_args.argc);
   for (int j = 0; j < js_args.argc; j++) {
     i::Handle<i::String> arg =
         factory->NewStringFromUtf8(i::CStrVector(js_args[j])).ToHandleChecked();
     arguments_array->set(j, *arg);
   }
   i::Handle<i::JSArray> arguments_jsarray =
       factory->NewJSArrayWithElements(arguments_array);
   context->Global()
       ->Set(context,
             String::NewFromUtf8(isolate, "arguments", NewStringType::kNormal)
                 .ToLocalChecked(),
             Utils::ToLocal(arguments_jsarray))
       .FromJust();
+#endif  // !V8_SHARED
   return handle_scope.Escape(context);
 }
 
 
 void Shell::Exit(int exit_code) {
   // Use _exit instead of exit to avoid races between isolate
   // threads and static destructors.
   fflush(stdout);
   fflush(stderr);
   _exit(exit_code);
 }
 
 
+#ifndef V8_SHARED
 struct CounterAndKey {
   Counter* counter;
   const char* key;
 };
 
 
 inline bool operator<(const CounterAndKey& lhs, const CounterAndKey& rhs) {
   return strcmp(lhs.key, rhs.key) < 0;
 }
 
 void Shell::WriteIgnitionDispatchCountersFile(v8::Isolate* isolate) {
   HandleScope handle_scope(isolate);
   Local<Context> context = Context::New(isolate);
   Context::Scope context_scope(context);
 
   Local<Object> dispatch_counters = reinterpret_cast<i::Isolate*>(isolate)
                                         ->interpreter()
                                         ->GetDispatchCountersObject();
   std::ofstream dispatch_counters_stream(
       i::FLAG_trace_ignition_dispatches_output_file);
   dispatch_counters_stream << *String::Utf8Value(
       JSON::Stringify(context, dispatch_counters).ToLocalChecked());
 }
 
+#endif  // !V8_SHARED
+
 
 void Shell::OnExit(v8::Isolate* isolate) {
+#ifndef V8_SHARED
   if (i::FLAG_dump_counters) {
     int number_of_counters = 0;
     for (CounterMap::Iterator i(counter_map_); i.More(); i.Next()) {
       number_of_counters++;
     }
     CounterAndKey* counters = new CounterAndKey[number_of_counters];
     int j = 0;
     for (CounterMap::Iterator i(counter_map_); i.More(); i.Next(), j++) {
       counters[j].counter = i.CurrentValue();
       counters[j].key = i.CurrentKey();
@@ skipping 15 matching lines @@
         printf("| %-62s | %11i |\n", key, counter->count());
       }
     }
     printf("+----------------------------------------------------------------+"
            "-------------+\n");
     delete [] counters;
   }
 
   delete counters_file_;
   delete counter_map_;
+#endif  // !V8_SHARED
 }
 
 
 
 static FILE* FOpen(const char* path, const char* mode) {
 #if defined(_MSC_VER) && (defined(_WIN32) || defined(_WIN64))
   FILE* result;
   if (fopen_s(&result, path, mode) == 0) {
     return result;
   } else {
@@ skipping 113 matching lines @@
     printf("d8> ");
     Local<String> input = Shell::ReadFromStdin(isolate);
     if (input.IsEmpty()) break;
     ExecuteString(isolate, input, name, true, true);
   }
   printf("\n");
 }
 
 
 SourceGroup::~SourceGroup() {
+#ifndef V8_SHARED
   delete thread_;
   thread_ = NULL;
+#endif  // !V8_SHARED
 }
 
 
 void SourceGroup::Execute(Isolate* isolate) {
   bool exception_was_thrown = false;
   for (int i = begin_offset_; i < end_offset_; ++i) {
     const char* arg = argv_[i];
     Shell::SourceType source_type = Shell::SCRIPT;
     if (strcmp(arg, "-e") == 0 && i + 1 < end_offset_) {
       // Execute argument given to -e option directly.
@@ skipping 48 matching lines @@
   char* chars = ReadChars(isolate, name, &size);
   if (chars == NULL) return Local<String>();
   Local<String> result =
       String::NewFromUtf8(isolate, chars, NewStringType::kNormal, size)
           .ToLocalChecked();
   delete[] chars;
   return result;
 }
 
 
+#ifndef V8_SHARED
 base::Thread::Options SourceGroup::GetThreadOptions() {
   // On some systems (OSX 10.6) the stack size default is 0.5Mb or less
   // which is not enough to parse the big literal expressions used in tests.
   // The stack size should be at least StackGuard::kLimitSize + some
   // OS-specific padding for thread startup code.  2Mbytes seems to be enough.
   return base::Thread::Options("IsolateThread", 2 * MB);
 }
 
 
 void SourceGroup::ExecuteInThread() {
@@ skipping 303 matching lines @@
                             data)) {
     DCHECK(args.Data()->IsExternal());
     Local<External> this_value = Local<External>::Cast(args.Data());
     Worker* worker = static_cast<Worker*>(this_value->Value());
     worker->out_queue_.Enqueue(data);
     worker->out_semaphore_.Signal();
   } else {
     delete data;
   }
 }
+#endif  // !V8_SHARED
 
 
 void SetFlagsFromString(const char* flags) {
   v8::V8::SetFlagsFromString(flags, static_cast<int>(strlen(flags)));
 }
 
 
 bool Shell::SetOptions(int argc, char* argv[]) {
   bool logfile_per_isolate = false;
   for (int i = 0; i < argc; i++) {
@@ skipping 35 matching lines @@
       options.send_idle_notification = true;
       argv[i] = NULL;
     } else if (strcmp(argv[i], "--omit-quit") == 0) {
       options.omit_quit = true;
       argv[i] = NULL;
     } else if (strcmp(argv[i], "-f") == 0) {
       // Ignore any -f flags for compatibility with other stand-alone
       // JavaScript engines.
       continue;
     } else if (strcmp(argv[i], "--isolate") == 0) {
+#ifdef V8_SHARED
+      printf("D8 with shared library does not support multi-threading\n");
+      return false;
+#endif  // V8_SHARED
       options.num_isolates++;
     } else if (strcmp(argv[i], "--dump-heap-constants") == 0) {
+#ifdef V8_SHARED
+      printf("D8 with shared library does not support constant dumping\n");
+      return false;
+#else
       options.dump_heap_constants = true;
       argv[i] = NULL;
+#endif  // V8_SHARED
     } else if (strcmp(argv[i], "--throws") == 0) {
       options.expected_to_throw = true;
       argv[i] = NULL;
     } else if (strncmp(argv[i], "--icu-data-file=", 16) == 0) {
       options.icu_data_file = argv[i] + 16;
       argv[i] = NULL;
+#ifdef V8_SHARED
+    } else if (strcmp(argv[i], "--dump-counters") == 0) {
+      printf("D8 with shared library does not include counters\n");
+      return false;
+#endif  // V8_SHARED
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
     } else if (strncmp(argv[i], "--natives_blob=", 15) == 0) {
       options.natives_blob = argv[i] + 15;
       argv[i] = NULL;
     } else if (strncmp(argv[i], "--snapshot_blob=", 16) == 0) {
       options.snapshot_blob = argv[i] + 16;
       argv[i] = NULL;
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
     } else if (strcmp(argv[i], "--cache") == 0 ||
                strncmp(argv[i], "--cache=", 8) == 0) {
@@ skipping 45 matching lines @@
 
   if (!logfile_per_isolate && options.num_isolates) {
     SetFlagsFromString("--nologfile_per_isolate");
   }
 
   return true;
 }
 
 
 int Shell::RunMain(Isolate* isolate, int argc, char* argv[], bool last_run) {
+#ifndef V8_SHARED
   for (int i = 1; i < options.num_isolates; ++i) {
     options.isolate_sources[i].StartExecuteInThread();
   }
+#endif  // !V8_SHARED
   {
     HandleScope scope(isolate);
     Local<Context> context = CreateEvaluationContext(isolate);
     if (last_run && options.use_interactive_shell()) {
       // Keep using the same context in the interactive shell.
       evaluation_context_.Reset(isolate, context);
     }
     {
       Context::Scope cscope(context);
       PerIsolateData::RealmScope realm_scope(PerIsolateData::Get(isolate));
       options.isolate_sources[0].Execute(isolate);
     }
   }
   CollectGarbage(isolate);
+#ifndef V8_SHARED
   for (int i = 1; i < options.num_isolates; ++i) {
     if (last_run) {
       options.isolate_sources[i].JoinThread();
     } else {
       options.isolate_sources[i].WaitForThread();
     }
   }
   CleanupWorkers();
+#endif  // !V8_SHARED
   return 0;
 }
 
 
 void Shell::CollectGarbage(Isolate* isolate) {
   if (options.send_idle_notification) {
     const double kLongIdlePauseInSeconds = 1.0;
     isolate->ContextDisposedNotification();
     isolate->IdleNotificationDeadline(
         g_platform->MonotonicallyIncreasingTime() + kLongIdlePauseInSeconds);
   }
   if (options.invoke_weak_callbacks) {
     // By sending a low memory notifications, we will try hard to collect all
     // garbage and will therefore also invoke all weak callbacks of actually
     // unreachable persistent handles.
     isolate->LowMemoryNotification();
   }
 }
 
 
 void Shell::EmptyMessageQueues(Isolate* isolate) {
+#ifndef V8_SHARED
   if (!i::FLAG_verify_predictable) {
+#endif
     while (v8::platform::PumpMessageLoop(g_platform, isolate)) continue;
+#ifndef V8_SHARED
   }
+#endif
 }
 
 
+#ifndef V8_SHARED
 bool Shell::SerializeValue(Isolate* isolate, Local<Value> value,
                            const ObjectList& to_transfer,
                            ObjectList* seen_objects,
                            SerializationData* out_data) {
   DCHECK(out_data);
   Local<Context> context = isolate->GetCurrentContext();
 
   if (value->IsUndefined()) {
     out_data->WriteTag(kSerializationTagUndefined);
   } else if (value->IsNull()) {
@@ skipping 294 matching lines @@
       const char* n = NULL;
       intptr_t p = reinterpret_cast<intptr_t>(o) & 0xfffff;
       ROOT_LIST(ROOT_LIST_CASE)
       if (n == NULL) continue;
       printf("  (\"%s\", 0x%05" V8PRIxPTR "): \"%s\",\n", sname, p, n);
     }
   }
   printf("}\n");
 #undef ROOT_LIST_CASE
 }
+#endif  // !V8_SHARED
 
 
 int Shell::Main(int argc, char* argv[]) {
   std::ofstream trace_file;
+#ifndef V8_SHARED
   v8::base::debug::EnableInProcessStackDumping();
+#endif
 #if (defined(_WIN32) || defined(_WIN64))
   UINT new_flags =
       SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX | SEM_NOOPENFILEERRORBOX;
   UINT existing_flags = SetErrorMode(new_flags);
   SetErrorMode(existing_flags | new_flags);
 #if defined(_MSC_VER)
   _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_DEBUG | _CRTDBG_MODE_FILE);
   _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
   _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG | _CRTDBG_MODE_FILE);
   _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);
   _CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_DEBUG | _CRTDBG_MODE_FILE);
   _CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR);
   _set_error_mode(_OUT_TO_STDERR);
 #endif  // defined(_MSC_VER)
 #endif  // defined(_WIN32) || defined(_WIN64)
   if (!SetOptions(argc, argv)) return 1;
   v8::V8::InitializeICUDefaultLocation(argv[0], options.icu_data_file);
+#ifndef V8_SHARED
   g_platform = i::FLAG_verify_predictable
                    ? new PredictablePlatform()
                    : v8::platform::CreateDefaultPlatform();
+#else
+  g_platform = v8::platform::CreateDefaultPlatform();
+#endif  // !V8_SHARED
 
   v8::V8::InitializePlatform(g_platform);
   v8::V8::Initialize();
   if (options.natives_blob || options.snapshot_blob) {
     v8::V8::InitializeExternalStartupData(options.natives_blob,
                                           options.snapshot_blob);
   } else {
     v8::V8::InitializeExternalStartupData(argv[0]);
   }
   SetFlagsFromString("--trace-hydrogen-file=hydrogen.cfg");
   SetFlagsFromString("--trace-turbo-cfg-file=turbo.cfg");
   SetFlagsFromString("--redirect-code-traces-to=code.asm");
   int result = 0;
   Isolate::CreateParams create_params;
   ShellArrayBufferAllocator shell_array_buffer_allocator;
   MockArrayBufferAllocator mock_arraybuffer_allocator;
   if (options.mock_arraybuffer_allocator) {
     Shell::array_buffer_allocator = &mock_arraybuffer_allocator;
   } else {
     Shell::array_buffer_allocator = &shell_array_buffer_allocator;
   }
   create_params.array_buffer_allocator = Shell::array_buffer_allocator;
 #ifdef ENABLE_VTUNE_JIT_INTERFACE
   create_params.code_event_handler = vTune::GetVtuneCodeEventHandler();
 #endif
+#ifndef V8_SHARED
   create_params.constraints.ConfigureDefaults(
       base::SysInfo::AmountOfPhysicalMemory(),
       base::SysInfo::AmountOfVirtualMemory());
 
   Shell::counter_map_ = new CounterMap();
   if (i::FLAG_dump_counters || i::FLAG_track_gc_object_stats) {
     create_params.counter_lookup_callback = LookupCounter;
     create_params.create_histogram_callback = CreateHistogram;
     create_params.add_histogram_sample_callback = AddHistogramSample;
   }
+#endif
   Isolate* isolate = Isolate::New(create_params);
   {
     Isolate::Scope scope(isolate);
     Initialize(isolate);
     PerIsolateData data(isolate);
 
     if (options.trace_enabled) {
       trace_file.open("v8_trace.json");
       platform::tracing::TracingController* tracing_controller =
           new platform::tracing::TracingController();
       platform::tracing::TraceBuffer* trace_buffer =
           platform::tracing::TraceBuffer::CreateTraceBufferRingBuffer(
               platform::tracing::TraceBuffer::kRingBufferChunks,
               platform::tracing::TraceWriter::CreateJSONTraceWriter(
                   trace_file));
       platform::tracing::TraceConfig* trace_config;
       if (options.trace_config) {
         int size = 0;
         char* trace_config_json_str =
             ReadChars(nullptr, options.trace_config, &size);
         trace_config =
             tracing::CreateTraceConfigFromJSON(isolate, trace_config_json_str);
         delete[] trace_config_json_str;
       } else {
         trace_config =
             platform::tracing::TraceConfig::CreateDefaultTraceConfig();
       }
       tracing_controller->Initialize(trace_buffer);
       tracing_controller->StartTracing(trace_config);
+#ifndef V8_SHARED
       if (!i::FLAG_verify_predictable) {
         platform::SetTracingController(g_platform, tracing_controller);
       }
+#else
+      platform::SetTracingController(g_platform, tracing_controller);
+#endif
     }
 
+#ifndef V8_SHARED
     if (options.dump_heap_constants) {
       DumpHeapConstants(reinterpret_cast<i::Isolate*>(isolate));
       return 0;
     }
+#endif
 
     if (options.stress_opt || options.stress_deopt) {
       Testing::SetStressRunType(options.stress_opt
                                 ? Testing::kStressTypeOpt
                                 : Testing::kStressTypeDeopt);
       options.stress_runs = Testing::GetStressRuns();
       for (int i = 0; i < options.stress_runs && result == 0; i++) {
         printf("============ Stress %d/%d ============\n", i + 1,
                options.stress_runs);
         Testing::PrepareStressRun(i);
         bool last_run = i == options.stress_runs - 1;
         result = RunMain(isolate, argc, argv, last_run);
       }
       printf("======== Full Deoptimization =======\n");
       Testing::DeoptimizeAll(isolate);
+#if !defined(V8_SHARED)
     } else if (i::FLAG_stress_runs > 0) {
       options.stress_runs = i::FLAG_stress_runs;
       for (int i = 0; i < options.stress_runs && result == 0; i++) {
         printf("============ Run %d/%d ============\n", i + 1,
                options.stress_runs);
         bool last_run = i == options.stress_runs - 1;
         result = RunMain(isolate, argc, argv, last_run);
       }
+#endif
     } else {
       bool last_run = true;
       result = RunMain(isolate, argc, argv, last_run);
     }
 
     // Run interactive shell if explicitly requested or if no script has been
     // executed, but never on --test
     if (options.use_interactive_shell()) {
       RunShell(isolate);
     }
 
+#ifndef V8_SHARED
     if (i::FLAG_ignition && i::FLAG_trace_ignition_dispatches &&
         i::FLAG_trace_ignition_dispatches_output_file != nullptr) {
       WriteIgnitionDispatchCountersFile(isolate);
     }
+#endif
 
     // Shut down contexts and collect garbage.
     evaluation_context_.Reset();
+#ifndef V8_SHARED
     stringify_function_.Reset();
+#endif  // !V8_SHARED
     CollectGarbage(isolate);
   }
   OnExit(isolate);
+#ifndef V8_SHARED
   // Dump basic block profiling data.
   if (i::BasicBlockProfiler* profiler =
           reinterpret_cast<i::Isolate*>(isolate)->basic_block_profiler()) {
     i::OFStream os(stdout);
     os << *profiler;
   }
+#endif  // !V8_SHARED
   isolate->Dispose();
   V8::Dispose();
   V8::ShutdownPlatform();
   delete g_platform;
 
   return result;
 }
 
 }  // namespace v8
 
 
 #ifndef GOOGLE3
 int main(int argc, char* argv[]) {
   return v8::Shell::Main(argc, argv);
 }
 #endif