new file mode 100644
--- /dev/null
+++ b/packages/language/c/libc/current/src/stdlib/atexit.cxx
@@ -0,0 +1,134 @@
+//========================================================================
+//
+//      atexit.cxx
+//
+//      Implementation of the atexit() function
+//
+//========================================================================
+//####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:        1998-08-31
+// 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 and support
+#include <cyg/infra/cyg_trac.h>    // Common tracing support
+#include <cyg/infra/cyg_ass.h>     // Common assertion support
+#include <stdlib.h>                // Header for all stdlib functions
+                                   // (like this one)
+#include "clibincl/stdlibsupp.hxx" // Support for stdlib functions
+
+// SYMBOLS
+
+externC int
+atexit( Cyg_atexit_fn_t ) CYGPRI_LIBC_WEAK_ALIAS("_atexit");
+
+
+// STATICS
+
+// cyg_libc_atexit_handlers contains the functions to call.
+// cyg_libc_atexit_handlers_count contains the number of valid handlers
+// or you can consider the next free handler slot in
+// cyg_libc_atexit_handlers.
+
+static Cyg_atexit_fn_t
+cyg_libc_atexit_handlers[ CYGNUM_LIBC_ATEXIT_HANDLERS ];
+
+static cyg_ucount32 cyg_libc_atexit_handlers_count;
+
+
+// FUNCTIONS
+
+externC void
+cyg_libc_invoke_atexit_handlers( void )
+{
+    CYG_REPORT_FUNCNAMETYPE( "cyg_libc_invoke_atexit_handlers",
+                             "returning" );
+    CYG_REPORT_FUNCARGVOID();
+    
+    cyg_ucount32 i;
+
+    for (i=cyg_libc_atexit_handlers_count; i>0; --i) {
+
+        CYG_TRACE1( true,
+                    "Calling function registered with atexit at addr %08x",
+                    cyg_libc_atexit_handlers[i-1] );
+        CYG_CHECK_FUNC_PTR( cyg_libc_atexit_handlers[i-1],
+                            "Function to call in atexit handler list "
+                            "isn't valid! Even though it was when "
+                            "entered!" );
+
+        (*cyg_libc_atexit_handlers[i-1])();
+
+    } // for
+        
+    CYG_REPORT_RETURN();
+} // cyg_libc_invoke_atexit_handlers()
+
+
+externC int
+_atexit( Cyg_atexit_fn_t func_to_register )
+{
+    CYG_REPORT_FUNCNAMETYPE( "_atexit", "returning %d" );
+    CYG_REPORT_FUNCARG1XV( func_to_register );
+
+    CYG_CHECK_FUNC_PTR( func_to_register,
+                       "_atexit() not passed a valid function argument!" );
+
+    // have we any slots left?
+    if (cyg_libc_atexit_handlers_count >=
+        sizeof(cyg_libc_atexit_handlers)/sizeof(Cyg_atexit_fn_t) ) {
+
+        CYG_REPORT_RETVAL( 1 ); 
+        return 1; // failure
+    } // if
+
+    cyg_libc_atexit_handlers[cyg_libc_atexit_handlers_count++] =
+        func_to_register;
+
+    CYG_REPORT_RETVAL(0);
+    return 0;
+} // _atexit()
+
+
+#endif // ifdef CYGPKG_LIBC     
+
+// EOF atexit.cxx