17 files changed, 131 insertions, 21 deletions
diff --git a/examples/libc/dirent.c b/examples/libc/dirent.c
index 06b72110e3..03fa94151d 100644
--- a/examples/libc/dirent.c
+++ b/examples/libc/dirent.c
@@ -1,8 +1,11 @@
 /*
- * dirent.c
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- *  Created on: 2010-11-17
- *      Author: bernard
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2010-11-17     Bernard      first version
  */
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/examples/libc/env.c b/examples/libc/env.c
index 6bc8ba4d7e..05005c2d1f 100644
--- a/examples/libc/env.c
+++ b/examples/libc/env.c
@@ -1,9 +1,13 @@
 /*
- * env.c
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- *  Created on: 2010-11-17
- *      Author: bernard
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2010-11-17     Bernard      first version
  */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <finsh.h>
diff --git a/examples/libc/ex1.c b/examples/libc/ex1.c
index f03fefbc00..8f0ccfff1c 100644
--- a/examples/libc/ex1.c
+++ b/examples/libc/ex1.c
@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
 /* Creates two threads, one printing 10000 "a"s, the other printing
    10000 "b"s.
    Illustrates: thread creation, thread joining. */
diff --git a/examples/libc/ex2.c b/examples/libc/ex2.c
index 925f4e1f23..df8f9a26a3 100644
--- a/examples/libc/ex2.c
+++ b/examples/libc/ex2.c
@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
 /* The classic producer-consumer example.
    Illustrates mutexes and conditions.
    All integers between 0 and 9999 should be printed exactly twice,
diff --git a/examples/libc/ex3.c b/examples/libc/ex3.c
index e4e3405d20..1697e7145b 100644
--- a/examples/libc/ex3.c
+++ b/examples/libc/ex3.c
@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
 /* Multi-thread searching.
    Illustrates: thread cancellation, cleanup handlers. */
 
diff --git a/examples/libc/ex4.c b/examples/libc/ex4.c
index eb79840372..ec1c533a98 100644
--- a/examples/libc/ex4.c
+++ b/examples/libc/ex4.c
@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
 /* Making a library function that uses static variables thread-safe.
    Illustrates: thread-specific data, pthread_once(). */
 
diff --git a/examples/libc/ex5.c b/examples/libc/ex5.c
index aa94c34063..cce5306894 100644
--- a/examples/libc/ex5.c
+++ b/examples/libc/ex5.c
@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
 /* The classic producer-consumer example, implemented with semaphores.
    All integers between 0 and 9999 should be printed exactly twice,
    once to the right of the arrow and once to the left. */
diff --git a/examples/libc/ex6.c b/examples/libc/ex6.c
index ecf813fef8..ac6319d74c 100644
--- a/examples/libc/ex6.c
+++ b/examples/libc/ex6.c
@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/examples/libc/ex7.c b/examples/libc/ex7.c
index e6473d48c2..e885f79c57 100644
--- a/examples/libc/ex7.c
+++ b/examples/libc/ex7.c
@@ -1,3 +1,11 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
 /* ex7
  *
  * Test case that illustrates a timed wait on a condition variable.
diff --git a/examples/libc/file.c b/examples/libc/file.c
index ea50e61628..79cdce3092 100644
--- a/examples/libc/file.c
+++ b/examples/libc/file.c
@@ -1,9 +1,13 @@
 /*
- * fstat.c
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- *  Created on: 2010-11-17
- *      Author: bernard
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2010-11-17     Bernard      first version
  */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <finsh.h>
diff --git a/examples/libc/memory.c b/examples/libc/memory.c
index d4f8e8dbde..063d90cfdc 100644
--- a/examples/libc/memory.c
+++ b/examples/libc/memory.c
@@ -1,9 +1,13 @@
 /*
- * memory.c
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- *  Created on: 2010-11-17
- *      Author: bernard
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2010-11-17     Bernard      first version
  */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <finsh.h>
diff --git a/examples/libc/mq.c b/examples/libc/mq.c
index 81ec6e35e8..a7f3f924dc 100644
--- a/examples/libc/mq.c
+++ b/examples/libc/mq.c
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2010-11-17     Bernard      first version
+ */
+
 #include <stdio.h>
 #include <fcntl.h>
 #include <stdlib.h>
diff --git a/examples/libc/printf.c b/examples/libc/printf.c
index 85e33671d6..c7968b9a0b 100644
--- a/examples/libc/printf.c
+++ b/examples/libc/printf.c
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2010-11-17     Bernard      first version
+ */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/fcntl.h>
diff --git a/examples/libc/rand.c b/examples/libc/rand.c
index 240519703b..96f5628bb8 100644
--- a/examples/libc/rand.c
+++ b/examples/libc/rand.c
@@ -1,9 +1,13 @@
 /*
- * rand.c
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- *  Created on: 2010-11-17
- *      Author: bernard
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2010-11-17     Bernard      first version
  */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <finsh.h>
diff --git a/examples/libc/sem.c b/examples/libc/sem.c
index 438a76b7f1..55b85114b8 100644
--- a/examples/libc/sem.c
+++ b/examples/libc/sem.c
@@ -1,3 +1,12 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
+
 #include <pthread.h>
 #include <semaphore.h>
 #include <stdio.h>
diff --git a/examples/libc/termios_test.c b/examples/libc/termios_test.c
index 192021b9ab..f65bff1a9f 100644
--- a/examples/libc/termios_test.c
+++ b/examples/libc/termios_test.c
@@ -1,8 +1,11 @@
 /*
- * termios_test.c
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- *  Created on: 2017-12-06
- *      Author: JasonJia
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-12-06     JasonJia     first version
  */
 
 #include <rtthread.h>
diff --git a/examples/libc/time.c b/examples/libc/time.c
index d9a6cb5b8e..5e91c1df80 100644
--- a/examples/libc/time.c
+++ b/examples/libc/time.c
@@ -1,8 +1,11 @@
 /*
- * time.c
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
- *  Created on: 2010-11-17
- *      Author: bernard
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2010-11-17     Bernard      first version
  */
 
 #include <stdio.h>