--- Libc/Libc-391/stdlib/FreeBSD/atexit.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/*-
- * Copyright (c) 1990, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)atexit.c	8.2 (Berkeley) 7/3/94";
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/stdlib/atexit.c,v 1.7 2003/12/19 17:11:20 kan Exp $");
-
-#include "namespace.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <pthread.h>
-#include "atexit.h"
-#include "un-namespace.h"
-
-#include "libc_private.h"
-
-#define	ATEXIT_FN_EMPTY	0
-#define	ATEXIT_FN_STD	1
-#define	ATEXIT_FN_CXA	2
-
-static pthread_mutex_t atexit_mutex = PTHREAD_MUTEX_INITIALIZER;
-
-#define _MUTEX_LOCK(x)		if (__isthreaded) _pthread_mutex_lock(x)
-#define _MUTEX_UNLOCK(x)	if (__isthreaded) _pthread_mutex_unlock(x)
-
-struct atexit {
-	struct atexit *next;			/* next in list */
-	int ind;				/* next index in this table */
-	struct atexit_fn {
-		int fn_type;			/* ATEXIT_? from above */
-		union {
-			void (*std_func)(void);
-			void (*cxa_func)(void *);
-		} fn_ptr;			/* function pointer */
-		void *fn_arg;			/* argument for CXA callback */
-		void *fn_dso;			/* shared module handle */
-	} fns[ATEXIT_SIZE];			/* the table itself */
-};
-
-static struct atexit *__atexit;		/* points to head of LIFO stack */
-
-/*
- * Register the function described by 'fptr' to be called at application
- * exit or owning shared object unload time. This is a helper function
- * for atexit and __cxa_atexit.
- */
-static int
-atexit_register(struct atexit_fn *fptr)
-{
-	static struct atexit __atexit0;	/* one guaranteed table */
-	struct atexit *p;
-
-	_MUTEX_LOCK(&atexit_mutex);
-	if ((p = __atexit) == NULL)
-		__atexit = p = &__atexit0;
-	else while (p->ind >= ATEXIT_SIZE) {
-		struct atexit *old__atexit;
-		old__atexit = __atexit;
-	        _MUTEX_UNLOCK(&atexit_mutex);
-		if ((p = (struct atexit *)malloc(sizeof(*p))) == NULL)
-			return (-1);
-		_MUTEX_LOCK(&atexit_mutex);
-		if (old__atexit != __atexit) {
-			/* Lost race, retry operation */
-			_MUTEX_UNLOCK(&atexit_mutex);
-			free(p);
-			_MUTEX_LOCK(&atexit_mutex);
-			p = __atexit;
-			continue;
-		}
-		p->ind = 0;
-		p->next = __atexit;
-		__atexit = p;
-	}
-	p->fns[p->ind++] = *fptr;
-	_MUTEX_UNLOCK(&atexit_mutex);
-	return 0;
-}
-
-/*
- * Register a function to be performed at exit.
- */
-int
-atexit(void (*func)(void))
-{
-	struct atexit_fn fn;
-	int error;
-
-	fn.fn_type = ATEXIT_FN_STD;
-	fn.fn_ptr.std_func = func;;
-	fn.fn_arg = NULL;
-	fn.fn_dso = NULL;
-
- 	error = atexit_register(&fn);	
-	return (error);
-}
-
-/*
- * Register a function to be performed at exit or when an shared object
- * with given dso handle is unloaded dynamically.
- */
-int
-__cxa_atexit(void (*func)(void *), void *arg, void *dso)
-{
-	struct atexit_fn fn;
-	int error;
-
-	fn.fn_type = ATEXIT_FN_CXA;
-	fn.fn_ptr.cxa_func = func;;
-	fn.fn_arg = arg;
-	fn.fn_dso = dso;
-
- 	error = atexit_register(&fn);	
-	return (error);
-}
-
-/*
- * Call all handlers registered with __cxa_atexit for the shared
- * object owning 'dso'.  Note: if 'dso' is NULL, then all remaining
- * handlers are called.
- */
-void
-__cxa_finalize(void *dso)
-{
-	struct atexit *p;
-	struct atexit_fn fn;
-	int n;
-
-	_MUTEX_LOCK(&atexit_mutex);
-	for (p = __atexit; p; p = p->next) {
-		for (n = p->ind; --n >= 0;) {
-			if (p->fns[n].fn_type == ATEXIT_FN_EMPTY)
-				continue; /* already been called */
-			if (dso != NULL && dso != p->fns[n].fn_dso)
-				continue; /* wrong DSO */
-			fn = p->fns[n];
-			/*
-			  Mark entry to indicate that this particular handler
-			  has already been called.
-			*/
-			p->fns[n].fn_type = ATEXIT_FN_EMPTY;
-		        _MUTEX_UNLOCK(&atexit_mutex);
-		
-			/* Call the function of correct type. */
-			if (fn.fn_type == ATEXIT_FN_CXA)
-				fn.fn_ptr.cxa_func(fn.fn_arg);
-			else if (fn.fn_type == ATEXIT_FN_STD)
-				fn.fn_ptr.std_func();
-			_MUTEX_LOCK(&atexit_mutex);
-		}
-	}
-	_MUTEX_UNLOCK(&atexit_mutex);
-}