[core] Print errors about starting main task

arduino/beken-72xx/cores/arduino/main.cpp

@@ -23,7 +23,7 @@ bool startMainTask() {
 		&mainThread,
 		THD_APPLICATION_PRIORITY,
 		"main",
-		(beken_thread_function_t)main_task,
+		(beken_thread_function_t)mainTask,
 		8192,
 		NULL
 	);

arduino/libretuya/common/main.cpp

@@ -21,7 +21,7 @@ void initVariant() __attribute__((weak));
 // Initialize C library
 extern "C" void __libc_init_array(void);
 
-void main_task(const void *arg) {
+void mainTask(const void *arg) {
 	setup();
 
 	for (;;) {
@@ -46,7 +46,9 @@ int main(void) {
 	// provide root partition
 	fal_root_part = (fal_partition_t)fal_partition_find("root");
 	// start the main task and OS kernel
-	startMainTask();
+	if (!startMainTask()) {
+		LT_E("Couldn't start the main task");
+	}
 
 	while (1) {}
 	return 0;

arduino/libretuya/core/LibreTuyaCustom.h

@@ -9,7 +9,9 @@ extern "C" {
 #endif
 
 /**
- * @brief Run main_task & start OS kernel (family-defined)
+ * @brief Run mainTask & start OS kernel (family-defined).
+ * Return false if an error occured; else do not return and
+ * and keep the OS kernel running.
  */
 extern bool startMainTask();
 
@@ -17,7 +19,7 @@ extern bool startMainTask();
  * @brief Main setup() and loop() task.
  * Not to be called directly.
  */
-extern void main_task(const void *arg);
+extern void mainTask(const void *arg);
 
 #define PIN_NONE (1 << 0)
 #define PIN_GPIO (1 << 1)

arduino/realtek-ambz/cores/arduino/main.cpp

@@ -23,8 +23,8 @@ void initArduino() {
 }
 
 bool startMainTask() {
-	osThreadDef(main_task, osPriorityRealtime, 1, 4096 * 4);
-	main_tid = osThreadCreate(osThread(main_task), NULL);
+	osThreadDef(mainTask, osPriorityRealtime, 1, 4096 * 4);
+	main_tid = osThreadCreate(osThread(mainTask), NULL);
 	osKernelStart();
 	return true;
 }