diff --git a/libc/machine/armv7-a/gnu/arch_memcpy.S b/libc/machine/armv7-a/gnu/arch_memcpy.S
index 4e1fa3f0a8b..d26e22c1cb3 100644
--- a/libc/machine/armv7-a/gnu/arch_memcpy.S
+++ b/libc/machine/armv7-a/gnu/arch_memcpy.S
@@ -1,9 +1,14 @@
 /************************************************************************************
  * nuttx/arch/arm/src/armv7-a/arm_memcpy.S
+ * ARMv7-A optimized memcpy.
  *
- * ARMv7-A optimised memcpy, based on the ARMv7-M version contributed by Mike Smith.
- * Apparently in the public domain and is re-released here under the modified BSD
- * license:
+ * Adapted for use with ARMv7-A and NuttX by:
+ *
+ *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Based on the ARMv7-M version contributed by Mike Smith.  Apparently in the public
+ * domain and is re-released here under the modified BSD license:
  *
  * Obtained via a posting on the Stellaris forum:
  *  http://e2e.ti.com/support/microcontrollers/\
@@ -57,9 +62,9 @@
  * Public Symbols
  ************************************************************************************/
 
-	.global		memcpy
-	.syntax		unified
-	.file		"arch_memcpy.S"
+	.global	memcpy
+	.syntax	unified
+	.file	"arch_memcpy.S"
 
 /************************************************************************************
  * .text
diff --git a/libc/machine/armv7-r/gnu/arch_memcpy.S b/libc/machine/armv7-r/gnu/arch_memcpy.S
index 1f6efcb8826..c20ab0a4ef7 100644
--- a/libc/machine/armv7-r/gnu/arch_memcpy.S
+++ b/libc/machine/armv7-r/gnu/arch_memcpy.S
@@ -1,9 +1,14 @@
 /************************************************************************************
  * nuttx/arch/arm/src/armv7-r/arm_memcpy.S
+ * ARMv7-R optimized memcpy.
  *
- * ARMv7-R optimised memcpy, based on the ARMv7-M version contributed by Mike Smith.
- * Apparently in the public domain and is re-released here under the modified BSD
- * license:
+ * Adapted for use with ARMv7-R and NuttX by:
+ *
+ *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Based on the ARMv7-M version contributed by Mike Smith.  Apparently in the public
+ * domain and is re-released here under the modified BSD license:
  *
  * Obtained via a posting on the Stellaris forum:
  *  http://e2e.ti.com/support/microcontrollers/\