diff --git a/porting/liteos_m/kernel/include/stdlib.h b/porting/liteos_m/kernel/include/stdlib.h
index d292fb0a8dcf58af1d9799b39db8e102096821e2..434ba64954468f6343e172519a35b6a5ae57cb75 100644
--- a/porting/liteos_m/kernel/include/stdlib.h
+++ b/porting/liteos_m/kernel/include/stdlib.h
@@ -44,6 +44,7 @@ void *calloc (size_t, size_t);
 void *realloc (void *, size_t);
 void free (void *);
 void *aligned_alloc(size_t, size_t);
+void *zalloc(size_t size);
 
 _Noreturn void abort (void);
 int atexit (void (*) (void));
diff --git a/porting/liteos_m/kernel/include/string.h b/porting/liteos_m/kernel/include/string.h
index 8d9190d53920288374fa5a0a6be27771821c20ec..2bbfbd7c4eef9061c99e1e19ed60f03fcc65bdd0 100644
--- a/porting/liteos_m/kernel/include/string.h
+++ b/porting/liteos_m/kernel/include/string.h
@@ -98,7 +98,7 @@ void *memmem(const void *, size_t, const void *, size_t);
 void *memrchr(const void *, int, size_t);
 void *mempcpy(void *, const void *, size_t);
 #ifndef __cplusplus
-char *basename();
+char *basename(void);
 #endif
 #endif
 
diff --git a/porting/liteos_m/kernel/src/misc/realpath.c b/porting/liteos_m/kernel/src/misc/realpath.c
index 3a916b8b2a20d78bf76fdb4f13bd46f5e5e74b95..c15dbe9c42b19bd16860bd647dffdecb2926e111 100755
--- a/porting/liteos_m/kernel/src/misc/realpath.c
+++ b/porting/liteos_m/kernel/src/misc/realpath.c
@@ -35,6 +35,7 @@
 #include <limits.h>
 #include <errno.h>
 #include <sys/stat.h>
+#include <securec.h>
 
 /*
  * LiteOS-M file system uses abs path