diff --git a/components/libc/compilers/dlib/fcntl.h b/components/libc/compilers/dlib/fcntl.h
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/components/libc/compilers/dlib/sys/stat.h b/components/libc/compilers/dlib/sys/stat.h
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/components/libc/compilers/dlib/sys/unistd.h b/components/libc/compilers/dlib/sys/unistd.h
index 06a46746c0..dbe4f3010d 100644
--- a/components/libc/compilers/dlib/sys/unistd.h
+++ b/components/libc/compilers/dlib/sys/unistd.h
@@ -2,6 +2,11 @@
 #define _SYS_UNISTD_H
 
 #ifdef RT_USING_DFS
+
+#define STDIN_FILENO    0       /* standard input file descriptor */
+#define STDOUT_FILENO   1       /* standard output file descriptor */
+#define STDERR_FILENO   2       /* standard error file descriptor */
+
 #include <dfs_posix.h>
 #else
 #define	_FREAD		0x0001	/* read enabled */
diff --git a/include/libc/libc_stat.h b/include/libc/libc_stat.h
index 69871dd101..26752393db 100644
--- a/include/libc/libc_stat.h
+++ b/include/libc/libc_stat.h
@@ -77,11 +77,23 @@
 
 struct stat
 {
-    struct rt_device* st_dev;
-    uint16_t st_mode;
-    uint32_t st_size;
-    time_t   st_mtime;
-    uint32_t st_blksize;
+    struct rt_device *st_dev;
+    uint16_t  st_ino;
+    uint16_t  st_mode;
+    uint16_t  st_nlink;
+    uint16_t  st_uid;
+    uint16_t  st_gid;
+    struct rt_device *st_rdev;
+    uint32_t  st_size;
+    time_t    st_atime;
+    long      st_spare1;
+    time_t    st_mtime;
+    long      st_spare2;
+    time_t    st_ctime;
+    long      st_spare3;
+    uint32_t  st_blksize;
+    uint32_t  st_blocks;
+    long      st_spare4[2];
 };
 
 #endif