diff --git a/components/cplusplus/crt_init.c b/components/cplusplus/crt_init.c
index e67939feeb..3294b51a40 100755
--- a/components/cplusplus/crt_init.c
+++ b/components/cplusplus/crt_init.c
@@ -13,10 +13,10 @@
 
 #include <rtthread.h>
 
-#ifdef __CC_ARM
+#if defined(__CC_ARM) || defined(__CLANG_ARM)
 extern void $Super$$__cpp_initialize__aeabi_(void);
 /* we need to change the cpp_initialize order */
-void $Sub$$__cpp_initialize__aeabi_(void)
+RT_WEAK void $Sub$$__cpp_initialize__aeabi_(void)
 {
     /* empty */
 }
@@ -34,19 +34,9 @@ RT_WEAK void *__dso_handle = 0;
 
 #endif
 
-RT_WEAK
-int cplusplus_system_init(void)
+RT_WEAK int cplusplus_system_init(void)
 {
-#if defined(__GNUC__) && !defined(__CC_ARM)
-    typedef void (*pfunc) ();
-    extern pfunc __ctors_start__[];
-    extern pfunc __ctors_end__[];
-    pfunc *p;
-
-    for (p = __ctors_start__; p < __ctors_end__; p++)
-        (*p)();
-
-#elif defined(__CC_ARM)
+#if defined(__CC_ARM) || defined(__CLANG_ARM)
     /* If there is no SHT$$INIT_ARRAY, calling
      * $Super$$__cpp_initialize__aeabi_() will cause fault. At least until Keil5.12
      * the problem still exists. So we have to initialize the C++ runtime by ourself.
@@ -63,9 +53,16 @@ int cplusplus_system_init(void)
         PROC *proc = (PROC*)((const char*)base + *base);
         (*proc)();
     }
+#elif defined(__GNUC__)
+    typedef void(*pfunc) ();
+    extern pfunc __ctors_start__[];
+    extern pfunc __ctors_end__[];
+    pfunc *p;
+
+    for (p = __ctors_start__; p < __ctors_end__; p++)
+        (*p)();
 #endif
 
     return 0;
 }
 INIT_COMPONENT_EXPORT(cplusplus_system_init);
-