为什么rt_components_init(void)中代码都没有执行？

发布于 2015-03-13 17:31:20 浏览：4514 订阅该版

想问问什么原因，为什么rt_components_init(void)中代码都没有执行？
也参考了帖子  [post17908.html?hilit=_MSC_VER#p17908](http://www.rt-thread.org/phpBB3/post17908.html?hilit=_MSC_VER#p17908) 
发现在linker的选项中添加" --keep __rt_init* " 已经添加好了，不知道具体原因是什么，下面附上具体的代码：
```void rt_components_init(void)
{
#ifndef _MSC_VER
#if RT_DEBUG_INIT
	int result;
	const struct rt_init_desc *desc;

rt_kprintf("do components intialization.
");
	for (desc = &__rt_init_desc_rti_board_end; desc < &__rt_init_desc_rti_end; desc ++)
	{
		rt_kprintf("initialize %s", desc->fn_name);
		result = desc->fn();
		rt_kprintf(":%d done
", result);
	}
#else
    const init_fn_t *fn_ptr;

for (fn_ptr = &__rt_init_rti_board_end; fn_ptr < &__rt_init_rti_end; fn_ptr ++)
    {
        (*fn_ptr)();
    }
#endif
#else
#ifdef RT_USING_MODULE
    rt_system_module_init();
#endif   //RT_USING_FINSH

#ifdef RT_USING_FINSH
	/* initialize finsh */
	finsh_system_init();
	finsh_set_device(RT_CONSOLE_DEVICE_NAME);
#endif     //RT_USING_FINSH

#ifdef RT_USING_LWIP
	/* initialize lwip stack */
	/* register ethernetif device */
	eth_system_device_init();
	
	/* initialize lwip system */
	lwip_system_init();
	rt_kprintf("TCP/IP initialized!
");
#endif     //RT_USING_LWIP
                                      
#ifdef RT_USING_DFS
	/* initialize the device file system */
	dfs_init();
	rt_kprintf("dfs execute
");  
#ifdef RT_USING_SPI        // ???í   ??????????????????
	rt_hw_spi_init();        //
	rt_kprintf("spi execute
");   //////////////////////////////  ????????????           
#endif                        //RT_USING_SPI

#ifdef RT_USING_DFS_ELMFAT
	/* initialize the elm chan FatFS file system*/
	elm_init();
#endif  //RT_USING_DFS_ELMFAT

#if defined(RT_USING_DFS_NFS) && defined(RT_USING_LWIP)
	/* initialize NFSv3 client file system */
	nfs_init();
#endif   //defined(RT_USING_DFS_NFS) && defined(RT_USING_LWIP)

#ifdef RT_USING_DFS_YAFFS2
	dfs_yaffs2_init();
#endif    //RT_USING_DFS_YAFFS2

#ifdef RT_USING_DFS_UFFS
	dfs_uffs_init();
#endif     //RT_USING_DFS_UFFS

#ifdef RT_USING_DFS_JFFS2
	dfs_jffs2_init();
#endif    //RT_USING_DFS_JFFS2

#ifdef RT_USING_DFS_ROMFS
	dfs_romfs_init();
#endif    //RT_USING_DFS_ROMFS
 
#ifdef RT_USING_DFS_DEVFS
	devfs_init();
#endif   //RT_USING_DFS_DEVFS
#endif /* end of RT_USING_DFS */

#ifdef RT_USING_NEWLIB
	libc_system_init(RT_CONSOLE_DEVICE_NAME);
#else
	/* the pthread system initialization will be initiallized in libc */
#ifdef RT_USING_PTHREADS 
	pthread_system_init();
#endif     //RT_USING_PTHREADS 
#endif     ///////RT_USING_NEWLIB

#ifdef RT_USING_RTGUI
	rtgui_system_server_init();
#endif      //RT_USING_RTGUI
> 
#ifdef RT_USING_USB_HOST
	rt_usb_host_init();
#endif      //  RT_USING_USB_HOST
#endif     //   _MSC_VER
}```
而且在void rt_init_thread_entry(void* parameter)中
#ifdef RT_USING_COMPONENTS_INIT
	/* initialization RT-Thread Components */
	rt_components_init();
#endif
已调用。
谢谢大家解答。