Implement Atomics API

src/bootstrapper.cc

 // Copyright 2014 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.
 
 #include "src/bootstrapper.h"
 
 #include "src/accessors.h"
 #include "src/api-natives.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/code-stubs.h"
@@ skipping 212 matching lines @@
   bool InstallNatives();
 
   void InstallTypedArray(
       const char* name,
       ElementsKind elements_kind,
       Handle<JSFunction>* fun,
       Handle<Map>* external_map);
   bool InstallExperimentalNatives();
   bool InstallExtraNatives();
   void InstallBuiltinFunctionIds();
+  void InstallExperimentalBuiltinFunctionIds();
   void InstallJSFunctionResultCaches();
   void InitializeNormalizedMapCaches();
 
   enum ExtensionTraversalState {
     UNVISITED, VISITED, INSTALLED
   };
 
   class ExtensionStates {
    public:
     ExtensionStates();
@@ skipping 1514 matching lines @@
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_unicode)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_unicode_regexps)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_computed_property_names)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_rest_parameters)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_reflect)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_spreadcalls)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_destructuring)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_object)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_spread_arrays)
 EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_sharedarraybuffer)
+EMPTY_NATIVE_FUNCTIONS_FOR_FEATURE(harmony_atomics)
 
 
 void Genesis::InstallNativeFunctions_harmony_proxies() {
   if (FLAG_harmony_proxies) {
     INSTALL_NATIVE(JSFunction, "$proxyDerivedHasTrap", derived_has_trap);
     INSTALL_NATIVE(JSFunction, "$proxyDerivedGetTrap", derived_get_trap);
     INSTALL_NATIVE(JSFunction, "$proxyDerivedSetTrap", derived_set_trap);
     INSTALL_NATIVE(JSFunction, "$proxyEnumerate", proxy_enumerate);
   }
 }
 
+
 #undef INSTALL_NATIVE
 
 #define EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(id) \
   void Genesis::InitializeGlobal_##id() {}
 
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_modules)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_arrays)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_array_includes)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_classes)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_object_literals)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_arrow_functions)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_proxies)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_sloppy)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_unicode)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_computed_property_names)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_rest_parameters)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_spreadcalls)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_destructuring)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_object)
 EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_spread_arrays)
+EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_atomics)
 
 void Genesis::InitializeGlobal_harmony_regexps() {
   Handle<JSObject> builtins(native_context()->builtins());
 
   Handle<HeapObject> flag(FLAG_harmony_regexps ? heap()->true_value()
                                                : heap()->false_value());
   Runtime::SetObjectProperty(isolate(), builtins,
                              factory()->harmony_regexps_string(), flag,
                              STRICT).Assert();
 }
@@ skipping 624 matching lines @@
   static const char* harmony_reflect_natives[] = {"native harmony-reflect.js",
                                                   nullptr};
   static const char* harmony_spreadcalls_natives[] = {
       "native harmony-spread.js", nullptr};
   static const char* harmony_destructuring_natives[] = {nullptr};
   static const char* harmony_object_natives[] = {"native harmony-object.js",
                                                  NULL};
   static const char* harmony_spread_arrays_natives[] = {nullptr};
   static const char* harmony_sharedarraybuffer_natives[] = {
       "native harmony-sharedarraybuffer.js", NULL};
+  static const char* harmony_atomics_natives[] = {"native harmony-atomics.js",
+                                                  nullptr};
 
   for (int i = ExperimentalNatives::GetDebuggerCount();
        i < ExperimentalNatives::GetBuiltinsCount(); i++) {
 #define INSTALL_EXPERIMENTAL_NATIVES(id, desc)                                \
   if (FLAG_##id) {                                                            \
     for (size_t j = 0; id##_natives[j] != NULL; j++) {                        \
       Vector<const char> script_name = ExperimentalNatives::GetScriptName(i); \
       if (strncmp(script_name.start(), id##_natives[j],                       \
                   script_name.length()) == 0) {                               \
         if (!CompileExperimentalBuiltin(isolate(), i)) return false;          \
       }                                                                       \
     }                                                                         \
   }
     HARMONY_INPROGRESS(INSTALL_EXPERIMENTAL_NATIVES);
     HARMONY_STAGED(INSTALL_EXPERIMENTAL_NATIVES);
     HARMONY_SHIPPING(INSTALL_EXPERIMENTAL_NATIVES);
 #undef INSTALL_EXPERIMENTAL_NATIVES
   }
 
   CallUtilsFunction(isolate(), "PostExperimentals");
 
   InstallExperimentalNativeFunctions();
+  InstallExperimentalBuiltinFunctionIds();
   return true;
 }
 
 
 bool Genesis::InstallExtraNatives() {
   for (int i = ExtraNatives::GetDebuggerCount();
        i < ExtraNatives::GetBuiltinsCount(); i++) {
     if (!CompileExtraBuiltin(isolate(), i)) return false;
   }
 
   return true;
 }
 
 
 static void InstallBuiltinFunctionId(Handle<JSObject> holder,
                                      const char* function_name,
                                      BuiltinFunctionId id) {
   Isolate* isolate = holder->GetIsolate();
   Handle<Object> function_object =
       Object::GetProperty(isolate, holder, function_name).ToHandleChecked();
   Handle<JSFunction> function = Handle<JSFunction>::cast(function_object);
   function->shared()->set_function_data(Smi::FromInt(id));
 }
 
 
+#define INSTALL_BUILTIN_ID(holder_expr, fun_name, name) \
+  { #holder_expr, #fun_name, k##name }                  \
+  ,
+
+
 void Genesis::InstallBuiltinFunctionIds() {
   HandleScope scope(isolate());
   struct BuiltinFunctionIds {
     const char* holder_expr;
     const char* fun_name;
     BuiltinFunctionId id;
   };
 
-#define INSTALL_BUILTIN_ID(holder_expr, fun_name, name) \
-  { #holder_expr, #fun_name, k##name }                  \
-  ,
   const BuiltinFunctionIds builtins[] = {
       FUNCTIONS_WITH_ID_LIST(INSTALL_BUILTIN_ID)};
-#undef INSTALL_BUILTIN_ID
 
   for (const BuiltinFunctionIds& builtin : builtins) {
     Handle<JSObject> holder =
         ResolveBuiltinIdHolder(native_context(), builtin.holder_expr);
     InstallBuiltinFunctionId(holder, builtin.fun_name, builtin.id);
   }
 }
 
 
+void Genesis::InstallExperimentalBuiltinFunctionIds() {
+  if (FLAG_harmony_atomics) {
+    struct BuiltinFunctionIds {
+      const char* holder_expr;
+      const char* fun_name;
+      BuiltinFunctionId id;
+    };
+
+    const BuiltinFunctionIds atomic_builtins[] = {
+        ATOMIC_FUNCTIONS_WITH_ID_LIST(INSTALL_BUILTIN_ID)};
+
+    for (const BuiltinFunctionIds& builtin : atomic_builtins) {
+      Handle<JSObject> holder =
+          ResolveBuiltinIdHolder(native_context(), builtin.holder_expr);
+      InstallBuiltinFunctionId(holder, builtin.fun_name, builtin.id);
+    }
+  }
+}
+
+
+#undef INSTALL_BUILTIN_ID
+
+
 // Do not forget to update macros.py with named constant
 // of cache id.
 #define JSFUNCTION_RESULT_CACHE_LIST(F) \
   F(16, native_context()->regexp_function())
 
 
 static FixedArray* CreateCache(int size, Handle<JSFunction> factory_function) {
   Factory* factory = factory_function->GetIsolate()->factory();
   // Caches are supposed to live for a long time, allocate in old space.
   int array_size = JSFunctionResultCache::kEntriesIndex + 2 * size;
@@ skipping 560 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   DCHECK(!IsActive());
 }
 
 } }  // namespace v8::internal