int main (void)
{
	/* invoke rtthread_startup */
	rtthread_startup();

	return 0;
}

/* re-define main function */
int $Sub$$main(void)
{
    rt_hw_interrupt_disable();
    rtthread_startup();
    
    return 0;
}

int __low_level_init(void)
{   
	// call IAR table copy function.
	__iar_data_init3();
    rt_hw_interrupt_disable();
    rtthread_startup();
    return 0;
}

int main(void)
{
    /* disable interrupt first */
    rt_hw_interrupt_disable();

    /* startup RT-Thread RTOS */
    rtthread_startup();
    return 0;
}

int main(void)
{
	/* disable interrupt first */
	rt_hw_interrupt_disable();

	/* invoke rtthread_startup */
	rtthread_startup();
	
	return 0;
}

int main(void)
{
	rt_uint32_t level UNUSED;

	/* disable interrupt first */
	level = rt_hw_interrupt_disable();
	rtthread_startup();

	return 0;
}

int main(void)
{
    /* C++ global class init */
    cplusplus_system_init();

    /* disable interrupt first */
    rt_hw_interrupt_disable();

    /* startup RT-Thread RTOS */
    rtthread_startup();

    return 0;
}

/***************************************************************************//**
 * @brief
 *  Program entry point
 *
 * @details
 *
 * @note
 *
 ******************************************************************************/
int main(void)
{
    /* disable interrupt first */
    rt_hw_interrupt_disable();

    /* init system setting */
    SystemInit();

    /* startup RT-Thread RTOS */
    rtthread_startup();

    return 0;
}

int main(void)
{
	rtthread_startup();
	return 0;
}

/* Add -eentry to arm-none-eabi-gcc argument */
int entry(void)
{
    rt_hw_interrupt_disable();
    rtthread_startup();
    return 0;
}

/* re-define main function */
int $Sub$$main(void)    // 此函数取代工程中的main函数，system_init初始化之后跳转到此处
{
    rt_hw_interrupt_disable();  // 系统关中断，直接调用汇编代码
    rtthread_startup();         //  rtt的所有初始化代码在此被执行
    return 0;    
}