18.3.26日报

1，给window.scrollX设置值会导致堆栈溢出，看堆栈是反复进入js的访问器回调导致。但发现github上最新代码反而没问题。一开始以为是v8-5-7和miniblink49哪个代码不兼容。但看起来不是。

2，修改v8 5.7开启devtools失效的bug。原因是getv8version这函数找不到。新v8确实移除了，但不知道为何debug.js这个v8自带的js却用到了。

给window对象的scrollX设置访问器 > minichrome.exe!v8::internal::Factory::NewAccessorPair() 行 229 C++ minichrome.exe!v8::internal::LookupIterator::TransitionToAccessorProperty(v8::internal::Handle<v8::internal::Object> getter={...}, v8::internal::Handle<v8::internal::Object> setter={...}, v8::internal::PropertyAttributes attributes=NONE) 行 502 C++ minichrome.exe!v8::internal::JSObject::DefineAccessor(v8::internal::LookupIterator * it=0x0c03ad00, v8::internal::Handle<v8::internal::Object> getter={...}, v8::internal::Handle<v8::internal::Object> setter={...}, v8::internal::PropertyAttributes attributes=NONE) 行 8873 C++ minichrome.exe!v8::internal::JSObject::DefineAccessor(v8::internal::Handle<v8::internal::JSObject> object={...}, v8::internal::Handle<v8::internal::Name> name={...}, v8::internal::Handle<v8::internal::Object> getter={...}, v8::internal::Handle<v8::internal::Object> setter={...}, v8::internal::PropertyAttributes attributes=NONE) 行 8840 C++ minichrome.exe!v8::internal::`anonymous namespace'::DefineAccessorProperty(v8::internal::Isolate * isolate=0x00556420, v8::internal::Handle<v8::internal::JSObject> object={...}, v8::internal::Handle<v8::internal::Name> name={...}, v8::internal::Handle<v8::internal::Object> getter={...}, v8::internal::Handle<v8::internal::Object> setter={...}, v8::internal::PropertyAttributes attributes=NONE, bool force_instantiate=false) 行 95 C++ minichrome.exe!v8::internal::`anonymous namespace'::ConfigureInstance<v8::internal::ObjectTemplateInfo>(v8::internal::Isolate * isolate=0x00556420, v8::internal::Handle<v8::internal::JSObject> obj={...}, v8::internal::Handle<v8::internal::ObjectTemplateInfo> data={...}, bool is_hidden_prototype=false) 行 252 C++ minichrome.exe!v8::internal::`anonymous namespace'::InstantiateObject(v8::internal::Isolate * isolate=0x00556420, v8::internal::Handle<v8::internal::ObjectTemplateInfo> info={...}, v8::internal::Handle<v8::internal::JSReceiver> new_target={...}, bool is_hidden_prototype=false) 行 395 C++ minichrome.exe!v8::internal::`anonymous namespace'::InstantiateFunction(v8::internal::Isolate * isolate=0x00556420, v8::internal::Handle<v8::internal::FunctionTemplateInfo> data={...}, v8::internal::Handle<v8::internal::Name> name={...}) 行 457 C++ minichrome.exe!v8::internal::`anonymous namespace'::InstantiateObject(v8::internal::Isolate * isolate=0x00556420, v8::internal::Handle<v8::internal::ObjectTemplateInfo> info={...}, v8::internal::Handle<v8::internal::JSReceiver> new_target={...}, bool is_hidden_prototype=false) 行 383 C++ minichrome.exe!v8::internal::ApiNatives::InstantiateObject(v8::internal::Handle<v8::internal::ObjectTemplateInfo> data={...}, v8::internal::Handle<v8::internal::JSReceiver> new_target={...}) 行 530 C++ minichrome.exe!v8::internal::Genesis::ConfigureApiObject(v8::internal::Handle<v8::internal::JSObject> object={...}, v8::internal::Handle<v8::internal::ObjectTemplateInfo> object_template={...}) 行 4295 C++ minichrome.exe!v8::internal::Genesis::ConfigureGlobalObjects(v8::Local<v8::ObjectTemplate> global_proxy_template={...}) 行 4262 C++ minichrome.exe!v8::internal::Genesis::Genesis(v8::internal::Isolate * isolate=0x00556420, v8::internal::MaybeHandle<v8::internal::JSGlobalProxy> maybe_global_proxy={...}, v8::Local<v8::ObjectTemplate> global_proxy_template={...}, unsigned int context_snapshot_index=0, v8::internal::GlobalContextType context_type=FULL_CONTEXT) 行 4563 C++ minichrome.exe!v8::internal::Bootstrapper::CreateEnvironment(v8::internal::MaybeHandle<v8::internal::JSGlobalProxy> maybe_global_proxy={...}, v8::Local<v8::ObjectTemplate> global_proxy_template={...}, v8::ExtensionConfiguration * extensions=0x0c03b744, unsigned int context_snapshot_index=0, v8::internal::GlobalContextType context_type=FULL_CONTEXT) 行 314 C++ minichrome.exe!v8::InvokeBootstrapper<v8::internal::Context>::Invoke(v8::internal::Isolate * isolate=0x00556420, v8::internal::MaybeHandle<v8::internal::JSGlobalProxy> maybe_global_proxy={...}, v8::Local<v8::ObjectTemplate> global_object_template={...}, v8::ExtensionConfiguration * extensions=0x0c03b744, unsigned int context_snapshot_index=0) 行 6112 C++ minichrome.exe!v8::CreateEnvironment<v8::internal::Context>(v8::internal::Isolate * isolate=0x00556420, v8::ExtensionConfiguration * extensions=0x0c03b744, v8::MaybeLocal<v8::ObjectTemplate> maybe_global_template={...}, v8::MaybeLocal<v8::Value> maybe_global_proxy={...}, unsigned int context_snapshot_index=0) 行 6185 C++ minichrome.exe!v8::NewContext(v8::Isolate * external_isolate=0x00556420, v8::ExtensionConfiguration * extensions=0x0c03b744, v8::MaybeLocal<v8::ObjectTemplate> global_template={...}, v8::MaybeLocal<v8::Value> global_object={...}, unsigned int context_snapshot_index=0) 行 6214 C++ minichrome.exe!v8::Context::New(v8::Isolate * external_isolate=0x00556420, v8::ExtensionConfiguration * extensions=0x0c03b744, v8::MaybeLocal<v8::ObjectTemplate> global_template={...}, v8::MaybeLocal<v8::Value> global_object={...}) 行 6230 C++ minichrome.exe!blink::LocalWindowProxy::createContext() 行 158 C++ minichrome.exe!blink::LocalWindowProxy::initialize() 行 93 C++ minichrome.exe!blink::WindowProxy::initializeIfNeeded() 行 175 C++ > node.dll!v8::internal::Factory::NewAccessorInfo() 行 1058 C++ node.dll!v8::`anonymous namespace'::MakeAccessorInfo<void (__cdecl*)(v8::Local<v8::Name>,v8::PropertyCallbackInfo<v8::Value> const &),void (__cdecl*)(v8::Local<v8::Name>,v8::Local<v8::Value>,v8::PropertyCallbackInfo<void> const &)>(v8::Local<v8::Name> name={...}, void (v8::Local<v8::Name>, const v8::PropertyCallbackInfo<v8::Value> &) * getter=0x0f79f5a2, void (v8::Local<v8::Name>, v8::Local<v8::Value>, const v8::PropertyCallbackInfo<void> &) * setter=0x0f7a0d83, v8::Local<v8::Value> data={...}, v8::AccessControl settings=DEFAULT, v8::PropertyAttribute attributes=None, v8::Local<v8::AccessorSignature> signature={...}, bool is_special_data_property=false, bool replace_on_access=false) 行 1384 C++ node.dll!v8::TemplateSetAccessor<void (__cdecl*)(v8::Local<v8::String>,v8::PropertyCallbackInfo<v8::Value> const &),void (__cdecl*)(v8::Local<v8::String>,v8::Local<v8::Value>,v8::PropertyCallbackInfo<void> const &),v8::Local<v8::Value>,v8::ObjectTemplate>(v8::ObjectTemplate * template_obj=0x009d5aa0, v8::Local<v8::Name> name={...}, void (v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value> &) * getter=0x0f79f5a2, void (v8::Local<v8::String>, v8::Local<v8::Value>, const v8::PropertyCallbackInfo<void> &) * setter=0x0f7a0d83, v8::Local<v8::Value> data={...}, v8::AccessControl settings=DEFAULT, v8::PropertyAttribute attribute=None, v8::Local<v8::AccessorSignature> signature={...}, bool is_special_data_property=false, bool replace_on_access=false) 行 1563 C++ node.dll!v8::ObjectTemplate::SetAccessor(v8::Local<v8::Name> name={...}, void (v8::Local<v8::Name>, const v8::PropertyCallbackInfo<v8::Value> &) * getter=0x0f79f5a2, void (v8::Local<v8::Name>, v8::Local<v8::Value>, const v8::PropertyCallbackInfo<void> &) * setter=0x0f7a0d83, v8::Local<v8::Value> data={...}, v8::AccessControl settings=DEFAULT, v8::PropertyAttribute attribute=None, v8::Local<v8::AccessorSignature> signature={...}) 行 1632 C++ node.dll!blink::`anonymous namespace'::installAttributeInternal(v8::Isolate * isolate=0x009a9060, v8::Local<v8::ObjectTemplate> instanceTemplate={...}, v8::Local<v8::ObjectTemplate> prototypeTemplate={...}, const blink::V8DOMConfiguration::AttributeConfiguration & attribute={...}, const blink::DOMWrapperWorld & world={...}) 行 59 C++ node.dll!blink::V8DOMConfiguration::installAttributes(v8::Isolate * isolate=0x009a9060, v8::Local<v8::ObjectTemplate> instanceTemplate={...}, v8::Local<v8::ObjectTemplate> prototypeTemplate={...}, const blink::V8DOMConfiguration::AttributeConfiguration * attributes=0x10b786a0, unsigned int attributeCount=383) 行 196 C++ node.dll!blink::V8DOMConfiguration::installDOMClassTemplate(v8::Isolate * isolate=0x009a9060, v8::Local<v8::FunctionTemplate> functionDescriptor={...}, const char * interfaceName=0x10576fd0, v8::Local<v8::FunctionTemplate> parentClass={...}, unsigned int fieldCount=3, const blink::V8DOMConfiguration::AttributeConfiguration * attributes=0x10b786a0, unsigned int attributeCount=404, const blink::V8DOMConfiguration::AccessorConfiguration * accessors=0x00000000, unsigned int accessorCount=0, const blink::V8DOMConfiguration::MethodConfiguration * callbacks=0x10b7bf70, unsigned int callbackCount=28) 行 288 C++ node.dll!blink::V8Window::installV8WindowTemplate(v8::Local<v8::FunctionTemplate> functionTemplate={...}, v8::Isolate * isolate=0x009a9060) 行 7624 C++ node.dll!blink::V8WindowPartial::installV8WindowTemplate(v8::Local<v8::FunctionTemplate> functionTemplate={...}, v8::Isolate * isolate=0x009a9060) 行 1712 C++ node.dll!blink::V8DOMConfiguration::domClassTemplate(v8::Isolate * isolate=0x009a9060, blink::WrapperTypeInfo * wrapperTypeInfo=0x10b785e0, void (v8::Local<v8::FunctionTemplate>, v8::Isolate *) * configureDOMClassTemplate=0x0f7bbadd) 行 305 C++ node.dll!blink::V8Window::domTemplate(v8::Isolate * isolate=0x009a9060) 行 8203 C++