diff --git a/components/cplusplus/crt_init.c b/components/cplusplus/crt_init.c
old mode 100644
new mode 100755
index 8641f93f40..ebcc4af37d
--- a/components/cplusplus/crt_init.c
+++ b/components/cplusplus/crt_init.c
@@ -43,6 +43,9 @@ void _init()
 void _fini()
 {
 }
+
+WEAK void *__dso_handle = 0;
+
 #endif
 
 WEAK