[finsh] finsh组件可以选择是否包含内置命令

libcpu/arm/cortex-m3/cpuport.c

@@ -291,7 +291,9 @@ struct exception_info
  */
 void rt_hw_hard_fault_exception(struct exception_info * exception_info)
 {
+#if defined(RT_USING_FINSH) && defined(FINSH_USING_BUILT_IN_COMMANDS)
     extern long list_thread(void);
+#endif
     struct stack_frame* context = &exception_info->stack_frame;
 
     if (rt_exception_hook != RT_NULL)
@@ -325,9 +327,9 @@ void rt_hw_hard_fault_exception(struct exception_info * exception_info)
     {
         rt_kprintf("hard fault on thread: %s\r\n\r\n", rt_thread_self()->name);
 
-#ifdef RT_USING_FINSH
+#if defined(RT_USING_FINSH) && defined(FINSH_USING_BUILT_IN_COMMANDS)
         list_thread();
-#endif /* RT_USING_FINSH */
+#endif
     }
     else
     {