Return a stub service in the event that a service interface is not implemented, instead of reporting to the caller that GetServiceHandle itself is unimplemented (which games seem to dislike).

src/core/hle/service/service.cpp

@@ -57,6 +57,8 @@ namespace Service {
 std::unordered_map<std::string, Kernel::SharedPtr<Interface>> g_kernel_named_ports;
 std::unordered_map<std::string, Kernel::SharedPtr<Interface>> g_srv_services;
 
+Interface g_stub_service;
+
 ////////////////////////////////////////////////////////////////////////////////////////////////////
 // Module interface
 

src/core/hle/service/service.h

@@ -119,5 +119,7 @@ void Shutdown();
 extern std::unordered_map<std::string, Kernel::SharedPtr<Interface>> g_kernel_named_ports;
 /// Map of services registered with the "srv:" service, retrieved using GetServiceHandle.
 extern std::unordered_map<std::string, Kernel::SharedPtr<Interface>> g_srv_services;
+/// Returned to callers when the requested service is not yet implemented
+extern Interface g_stub_service;
 
 } // namespace

src/core/hle/service/srv.cpp

@@ -42,8 +42,14 @@ static void GetServiceHandle(Service::Interface* self) {
         LOG_TRACE(Service_SRV, "called port=%s, handle=0x%08X", port_name.c_str(), cmd_buff[3]);
     } else {
         LOG_ERROR(Service_SRV, "(UNIMPLEMENTED) called port=%s", port_name.c_str());
-        res = UnimplementedFunction(ErrorModule::SRV);
+
+        // Note: developers should add the corresponding service interface implementation when this is hit
+        UNIMPLEMENTED();
+
+        // Return the stubbed (empty) service so that applications can continue
+        cmd_buff[3] = Kernel::g_handle_table.Create(&Service::g_stub_service).MoveFrom();
     }
+    
     cmd_buff[1] = res.raw;
 }