new file mode 100644
--- /dev/null
+++ b/packages/language/c/libc/current/src/string/strlen.cxx
@@ -0,0 +1,128 @@
+//===========================================================================
+//
+//      strlen.cxx
+//
+//      ANSI standard strlen() routine
+//
+//===========================================================================
+//####COPYRIGHTBEGIN####
+//
+// -------------------------------------------
+// The contents of this file are subject to the Cygnus eCos Public License
+// Version 1.0 (the "License"); you may not use this file except in
+// compliance with the License.  You may obtain a copy of the License at
+// http://sourceware.cygnus.com/ecos
+// 
+// Software distributed under the License is distributed on an "AS IS"
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+// License for the specific language governing rights and limitations under
+// the License.
+// 
+// The Original Code is eCos - Embedded Cygnus Operating System, released
+// September 30, 1998.
+// 
+// The Initial Developer of the Original Code is Cygnus.  Portions created
+// by Cygnus are Copyright (C) 1998 Cygnus Solutions.  All Rights Reserved.
+// -------------------------------------------
+//
+//####COPYRIGHTEND####
+//===========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):   jlarmour
+// Contributors:  jlarmour@cygnus.co.uk
+// Date:        1998-02-13
+// Purpose:     
+// Description: 
+// Usage:       
+//
+//####DESCRIPTIONEND####
+//
+//===========================================================================
+
+// CONFIGURATION
+
+#include <pkgconf/libc.h>   // Configuration header
+
+// Include the C library?
+#ifdef CYGPKG_LIBC     
+
+// INCLUDES
+
+#include <cyg/infra/cyg_type.h>    // Common type definitions
+#include <cyg/infra/cyg_trac.h>    // Tracing support
+#include <cyg/infra/cyg_ass.h>     // Assertion support
+#include <string.h>                // Header for this file
+#include <stddef.h>         // Compiler definitions such as size_t, NULL etc.
+#include "clibincl/stringsupp.hxx" // Useful string function support and
+                                   // prototypes
+
+// EXPORTED SYMBOLS
+
+externC size_t
+strlen( const char *s ) CYGPRI_LIBC_WEAK_ALIAS("_strlen");
+
+// FUNCTIONS
+
+size_t
+_strlen( const char *s )
+{
+    int retval;
+    
+    CYG_REPORT_FUNCNAMETYPE( "_strlen", "returning length %d" );
+    CYG_REPORT_FUNCARG1( "s=%08x", s );
+
+    CYG_CHECK_DATA_PTR( s, "s is not a valid pointer!" );
+
+#if defined(CYGIMP_LIBC_STRING_PREFER_SMALL_TO_FAST) || defined(__OPTIMIZE_SIZE__)
+    const char *start = s;
+    
+    while (*s)
+        s++;
+    
+    retval = s - start;
+
+    CYG_REPORT_RETVAL( retval );
+
+    return retval;
+
+#else
+
+    const char *start = s;
+    CYG_WORD *aligned_addr;
+    
+    if (CYG_LIBC_STR_UNALIGNED (s))
+    {
+        while (*s)
+            s++;
+        retval = s - start;
+
+        CYG_REPORT_RETVAL( retval );
+    
+        return retval;
+    }
+    
+    // If the string is word-aligned, we can check for the presence of 
+    // a null in each word-sized block.
+    
+    aligned_addr = (CYG_WORD *)s;
+    while (!CYG_LIBC_STR_DETECTNULL (*aligned_addr))
+        aligned_addr++;
+    
+    // Once a null is detected, we check each byte in that block for a
+    // precise position of the null.
+    s = (char*)aligned_addr; 
+    while (*s)
+        s++;
+    retval = s - start;
+
+    CYG_REPORT_RETVAL( retval );
+    
+    return retval;
+#endif // not defined(CYGIMP_LIBC_STRING_PREFER_SMALL_TO_FAST) ||
+       //     defined(__OPTIMIZE_SIZE__)
+} // _strlen()
+
+#endif // ifdef CYGPKG_LIBC     
+
+// EOF strlen.cxx