diff --git a/include/libc/libc_dirent.h b/include/libc/libc_dirent.h
index c3a19878ec..a86332e633 100644
--- a/include/libc/libc_dirent.h
+++ b/include/libc/libc_dirent.h
@@ -1,7 +1,10 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
  */
 
 #ifndef LIBC_DIRENT_H__
diff --git a/include/libc/libc_errno.h b/include/libc/libc_errno.h
index 9143c841f2..30d6092e33 100644
--- a/include/libc/libc_errno.h
+++ b/include/libc/libc_errno.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -161,7 +161,7 @@ defined in armcc/errno.h
 #define EPROTONOSUPPORT (ERROR_BASE_NO + 93)
 #define ESOCKTNOSUPPORT (ERROR_BASE_NO + 94)
 #define EOPNOTSUPP      (ERROR_BASE_NO + 95)
-#define ENOTSUP         EOPNOTSUPP         
+#define ENOTSUP         EOPNOTSUPP
 #define EPFNOSUPPORT    (ERROR_BASE_NO + 96)
 #define EAFNOSUPPORT    (ERROR_BASE_NO + 97)
 #define EADDRINUSE      (ERROR_BASE_NO + 98)
diff --git a/include/libc/libc_fcntl.h b/include/libc/libc_fcntl.h
index d149d86964..945e674d35 100644
--- a/include/libc/libc_fcntl.h
+++ b/include/libc/libc_fcntl.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -38,7 +38,7 @@
 #ifdef  _O_BINARY
 #define O_BINARY _O_BINARY
 #else
-#define O_BINARY	     0
+#define O_BINARY         0
 #endif
 #endif
 
diff --git a/include/libc/libc_fdset.h b/include/libc/libc_fdset.h
index 9700c7e83e..c542e6855c 100644
--- a/include/libc/libc_fdset.h
+++ b/include/libc/libc_fdset.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/include/libc/libc_ioctl.h b/include/libc/libc_ioctl.h
index 516c56b1f4..05f0daa238 100644
--- a/include/libc/libc_ioctl.h
+++ b/include/libc/libc_ioctl.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/include/libc/libc_limits.h b/include/libc/libc_limits.h
index b8368160df..36b8dbb202 100644
--- a/include/libc/libc_limits.h
+++ b/include/libc/libc_limits.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
- * Date                 Author             Notes
- * 2020-09-05     Meco Manthe  first version
+ * Date           Author       Notes
+ * 2020-09-05     Meco Man     the first version
  */
 
 #ifndef LIBC_LIMITS_H__
diff --git a/include/libc/libc_signal.h b/include/libc/libc_signal.h
index 539685de3e..8a4cc0d738 100644
--- a/include/libc/libc_signal.h
+++ b/include/libc/libc_signal.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -57,11 +57,11 @@ typedef struct siginfo siginfo_t;
 
 #define SI_USER     0x01    /* Signal sent by kill(). */
 #define SI_QUEUE    0x02    /* Signal sent by sigqueue(). */
-#define SI_TIMER    0x03    /* Signal generated by expiration of a 
+#define SI_TIMER    0x03    /* Signal generated by expiration of a
                                timer set by timer_settime(). */
-#define SI_ASYNCIO  0x04    /* Signal generated by completion of an 
+#define SI_ASYNCIO  0x04    /* Signal generated by completion of an
                                asynchronous I/O request. */
-#define SI_MESGQ    0x05    /* Signal generated by arrival of a 
+#define SI_MESGQ    0x05    /* Signal generated by arrival of a
                                message on an empty message queue. */
 
 #if !defined(RT_USING_NEWLIB)
diff --git a/include/libc/libc_stat.h b/include/libc/libc_stat.h
index 6497cfe12c..f680de4e06 100644
--- a/include/libc/libc_stat.h
+++ b/include/libc/libc_stat.h
@@ -1,7 +1,10 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
  */
 
 #ifndef LIBC_STAT_H__
diff --git a/include/libc/libc_stdio.h b/include/libc/libc_stdio.h
index 85ba509852..565e1bfd32 100644
--- a/include/libc/libc_stdio.h
+++ b/include/libc/libc_stdio.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
- * Date                 Author             Notes
- * 2020-09-05     Meco Manthe  first version
+ * Date           Author       Notes
+ * 2020-09-05     Meco Man     the first version
  */
 
 #ifndef LIBC_STDIO_H__
diff --git a/include/rtdbg.h b/include/rtdbg.h
index be5a57f312..c0a4e68222 100644
--- a/include/rtdbg.h
+++ b/include/rtdbg.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/include/rtdebug.h b/include/rtdebug.h
index b66cd6fc69..8c7d450ad4 100644
--- a/include/rtdebug.h
+++ b/include/rtdebug.h
@@ -1,7 +1,10 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date                 Author             Notes
  */
 
 #ifndef __RTDEBUG_H__
diff --git a/include/rtdef.h b/include/rtdef.h
index 44328b5447..a0d964bcb5 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/include/rthw.h b/include/rthw.h
index 89877faf90..5672a8f992 100644
--- a/include/rthw.h
+++ b/include/rthw.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -181,7 +181,7 @@ void rt_hw_secondary_cpu_up(void);
 void rt_hw_secondary_cpu_idle_exec(void);
 #else
 
-#define RT_DEFINE_SPINLOCK(x)  
+#define RT_DEFINE_SPINLOCK(x)
 #define RT_DECLARE_SPINLOCK(x)    rt_ubase_t x
 
 #define rt_hw_spin_lock(lock)     *(lock) = rt_hw_interrupt_disable()
diff --git a/include/rtlibc.h b/include/rtlibc.h
index fb8c782095..5a260d250d 100644
--- a/include/rtlibc.h
+++ b/include/rtlibc.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/include/rtm.h b/include/rtm.h
index 9da3a6b8b2..ec05662416 100644
--- a/include/rtm.h
+++ b/include/rtm.h
@@ -1,7 +1,10 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
  */
 
 #ifndef __RTM_H__
diff --git a/include/rtservice.h b/include/rtservice.h
index 5bd2b1c23b..d0bad85de1 100644
--- a/include/rtservice.h
+++ b/include/rtservice.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
diff --git a/include/rtthread.h b/include/rtthread.h
index 1e0094e73b..9bcf05820c 100644
--- a/include/rtthread.h
+++ b/include/rtthread.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *