Move most of the code from the constructor of the objects statically initialized in main() into Start()/Init() functions to avoid Static Initialization Order Fiasco (https://en.cppreference.com/w/cpp/language/siof). See https://github.com/JF002/InfiniTime/pull/415#issuecomment-859004238.

src/displayapp/DisplayApp.cpp

@@ -77,12 +77,14 @@ DisplayApp::DisplayApp(Drivers::St7789& lcd,
     motorController {motorController},
     motionController {motionController},
     timerController {timerController} {
-  msgQueue = xQueueCreate(queueSize, itemSize);
-  // Start clock when smartwatch boots
-  LoadApp(Apps::Clock, DisplayApp::FullRefreshDirections::None);
 }
 
 void DisplayApp::Start() {
+  msgQueue = xQueueCreate(queueSize, itemSize);
+
+  // Start clock when smartwatch boots
+  LoadApp(Apps::Clock, DisplayApp::FullRefreshDirections::None);
+
   if (pdPASS != xTaskCreate(DisplayApp::Process, "displayapp", 800, this, 0, &taskHandle)) {
     APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
   }

src/displayapp/DisplayAppRecovery.cpp

@@ -21,10 +21,11 @@ DisplayApp::DisplayApp(Drivers::St7789& lcd,
                        Pinetime::Controllers::MotionController& motionController,
                        Pinetime::Controllers::TimerController& timerController)
   : lcd {lcd}, bleController {bleController} {
-  msgQueue = xQueueCreate(queueSize, itemSize);
+
 }
 
 void DisplayApp::Start() {
+  msgQueue = xQueueCreate(queueSize, itemSize);
   if (pdPASS != xTaskCreate(DisplayApp::Process, "displayapp", 512, this, 0, &taskHandle))
     APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
 }

src/displayapp/LittleVgl.cpp

@@ -23,6 +23,10 @@ bool touchpad_read(lv_indev_drv_t* indev_drv, lv_indev_data_t* data) {
 
 LittleVgl::LittleVgl(Pinetime::Drivers::St7789& lcd, Pinetime::Drivers::Cst816S& touchPanel)
   : lcd {lcd}, touchPanel {touchPanel}, previousClick {0, 0} {
+
+}
+
+void LittleVgl::Init() {
   lv_init();
   InitTheme();
   InitDisplay();

src/displayapp/LittleVgl.h

@@ -19,6 +19,8 @@ namespace Pinetime {
       LittleVgl(LittleVgl&&) = delete;
       LittleVgl& operator=(LittleVgl&&) = delete;
 
+      void Init();
+
       void FlushDisplay(const lv_area_t* area, lv_color_t* color_p);
       bool GetTouchPadInfo(lv_indev_data_t* ptr);
       void SetFullRefresh(FullRefreshDirections direction);