3 files changed, 2 insertions, 70 deletions
diff --git a/components/libc/compilers/common/sys/ioctl.h b/components/libc/compilers/common/sys/ioctl.h
index 29ed3a8b84..a1642199b1 100644
--- a/components/libc/compilers/common/sys/ioctl.h
+++ b/components/libc/compilers/common/sys/ioctl.h
@@ -7,8 +7,8 @@
  * Date           Author       Notes
  * 2020-09-01     Meco Man     First Version
  */
-#ifndef _SYS_IOCTL_H
-#define _SYS_IOCTL_H
+#ifndef __SYS_IOCTL_H__
+#define __SYS_IOCTL_H__
 
 #include <rtconfig.h>
 #include <dfs_posix.h>
diff --git a/components/libc/compilers/common/sys/mman.h b/components/libc/compilers/common/sys/mman.h
deleted file mode 100644
index 2da2ddf716..0000000000
--- a/components/libc/compilers/common/sys/mman.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2017/11/30     Bernard      The first version.
- */
-
-#ifndef _SYS_MMAN_H
-#define _SYS_MMAN_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <sys/types.h>
-
-#define MAP_FAILED     ((void *) -1)
-
-#define MAP_SHARED     0x01
-#define MAP_PRIVATE    0x02
-#define MAP_TYPE       0x0f
-#define MAP_FIXED      0x10
-#define MAP_ANON       0x20
-#define MAP_ANONYMOUS  MAP_ANON
-#define MAP_NORESERVE  0x4000
-#define MAP_GROWSDOWN  0x0100
-#define MAP_DENYWRITE  0x0800
-#define MAP_EXECUTABLE 0x1000
-#define MAP_LOCKED     0x2000
-#define MAP_POPULATE   0x8000
-#define MAP_NONBLOCK   0x10000
-#define MAP_STACK      0x20000
-#define MAP_HUGETLB    0x40000
-#define MAP_FILE       0
-
-#define PROT_NONE      0
-#define PROT_READ      1
-#define PROT_WRITE     2
-#define PROT_EXEC      4
-#define PROT_GROWSDOWN 0x01000000
-#define PROT_GROWSUP   0x02000000
-
-#define MS_ASYNC       1
-#define MS_INVALIDATE  2
-#define MS_SYNC        4
-
-#define MCL_CURRENT    1
-#define MCL_FUTURE     2
-#define MCL_ONFAULT    4
-
-void *mmap (void *start, size_t len, int prot, int flags, int fd, off_t off);
-int munmap (void *start, size_t len);
-
-#ifdef __cplusplus
-}
-#endif
-#endif
diff --git a/components/libc/compilers/common/sys/termios.h b/components/libc/compilers/common/sys/termios.h
deleted file mode 100644
index c4b42083c4..0000000000
--- a/components/libc/compilers/common/sys/termios.h
+++ /dev/null
@@ -1,8 +0,0 @@
-/*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */