First commit XiUOS

lib/libcpp/cppinit.c

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+* Change Logs:
+* Date           Author       Notes
+* 2014-12-03     Bernard      Add copyright header.
+* 2014-12-29     Bernard      Add cplusplus initialization for ARMCC.
+* 2016-06-28     Bernard      Add _init/_fini routines for GCC.
+* 2016-10-02     Bernard      Add WEAK for cplusplus_system_init routine.
+*/
+
+/**
+* @file:    cppinit.c
+* @brief:   cplusplus initialzation
+* @version: 1.0
+* @author:  AIIT XUOS Lab
+* @date:    2021/4/25
+*/
+
+/*************************************************
+File name: cppinit.c
+Description: support cppinit function
+Others: take RT-Thread v4.0.2/components/cplusplus/crt_init.c for references
+                https://github.com/RT-Thread/rt-thread/tree/v4.0.2
+History: 
+1. Date: 2021-04-25
+Author: AIIT XUOS Lab
+Modification: 
+1. support cppinit function
+*************************************************/
+
+int cplusplus_system_init(void)   
+
+{
+    typedef void(*pfunc)();
+    extern pfunc __ctors_start__[];
+    extern pfunc __ctors_end__[];
+    pfunc *p;
+
+    for (p = __ctors_start__; p < __ctors_end__; p++)
+        (*p)();
+
+    return 0;
+}