diff --git a/build/systemMenu_tools/common/ARM9/include/common_utility.h b/build/systemMenu_tools/common/ARM9/include/common_utility.h
new file mode 100644
index 00000000..f1a03d77
--- /dev/null
+++ b/build/systemMenu_tools/common/ARM9/include/common_utility.h
@@ -0,0 +1,47 @@
+/*---------------------------------------------------------------------------*
+  Project:  TwlIPL - Tools
+  File:     common_utility.h
+
+  Copyright 2008 Nintendo.  All rights reserved.
+
+  These coded instructions, statements, and computer programs contain
+  proprietary information of Nintendo of America Inc. and/or Nintendo
+  Company Ltd., and are protected by Federal copyright law.  They may
+  not be disclosed to third parties or copied or duplicated in any form,
+  in whole or in part, without the prior written consent of Nintendo.
+
+  $Date::            $
+  $Rev$
+  $Author$
+ *---------------------------------------------------------------------------*/
+#ifndef COMMON_UTILITY_H_
+#define COMMON_UTILITY_H_
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/*---------------------------------------------------------------------------*
+  Name:         MakeFullPathForSD
+
+  Description:  SDアーカイブ用のフルパスを作成します。
+
+  Arguments:    
+
+  Returns:      None
+ *---------------------------------------------------------------------------*/
+static inline void MakeFullPathForSD(char* file_name, char* full_path)
+{
+	STD_CopyString( full_path, "sdmc:/" );
+	STD_ConcatenateString( full_path, file_name );
+}
+
+#ifdef  __cplusplus
+}          /* extern "C" */
+#endif
+
+#endif /* COMMON_UTILITY_H_ */
+
+/*---------------------------------------------------------------------------*
+  End of file
+ *---------------------------------------------------------------------------*/