extmod: if debug build is used, disable LoadDevice, wipe storage on start, draw red square in corner

embed/extmod/modtrezorconfig/modtrezorconfig.c

@@ -21,6 +21,10 @@
 ///     '''
 STATIC mp_obj_t mod_trezorconfig_init(void) {
     storage_init();
+    // wipe storage when debug build is used
+    if (MP_STATE_VM(mp_optimise_value) == 0) {
+        storage_wipe();
+    }
     return mp_const_none;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_trezorconfig_init_obj, mod_trezorconfig_init);

embed/extmod/modtrezorui/modtrezorui-display.h

@@ -43,6 +43,10 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_trezorui_Display_clear_obj, mod_trezorui_Di
 ///     Refresh display (update screen).
 ///     '''
 STATIC mp_obj_t mod_trezorui_Display_refresh(mp_obj_t self) {
+    // draw red square in upper-right corner when debug build is used
+    if (MP_STATE_VM(mp_optimise_value) == 0) {
+        display_bar(DISPLAY_RESX - 8, 0, 8, 8, 0xF800);
+    }
     display_refresh();
     return mp_const_none;
 }

src/apps/management/__init__.py

@@ -41,7 +41,9 @@ def dispatch_ChangePin(*args, **kwargs):
 
 
 def boot():
-    register(LoadDevice, protobuf_workflow, dispatch_LoadDevice)
+    # only enable LoadDevice in debug builds
+    if __debug__:
+        register(LoadDevice, protobuf_workflow, dispatch_LoadDevice)
     register(ResetDevice, protobuf_workflow, dispatch_ResetDevice)
     register(WipeDevice, protobuf_workflow, dispatch_WipeDevice)
     register(RecoveryDevice, protobuf_workflow, dispatch_RecoveryDevice)