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stdlib/FreeBSD/quick_exit.c Libc-1725.40.4 /dev/null
--- Libc/Libc-1725.40.4/stdlib/FreeBSD/quick_exit.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2011 David Chisnall
- * Copyright (c) 2023 Klara, Inc.
- * All rights reserved.
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- */
-
-#include <sys/types.h>
-
-#include <stdatomic.h>
-#include <stdlib.h>
-
-/**
- * Linked list of quick exit handlers.  These will be invoked in reverse
- * order of insertion when quick_exit() is called.  This is simpler than
- * the atexit() version, because it is not required to support C++
- * destructors or DSO-specific cleanups.
- */
-struct quick_exit_handler {
-	struct quick_exit_handler *next;
-	void (*cleanup)(void);
-};
-
-static _Atomic(struct quick_exit_handler *) handlers;
-
-int
-at_quick_exit(void (*func)(void))
-{
-	struct quick_exit_handler *h;
-
-	if ((h = calloc(1, sizeof(*h))) == NULL) {
-		return (-1);
-	}
-	h->cleanup = func;
-	while (!atomic_compare_exchange_strong(&handlers, &h->next, h)) {
-		/* nothing */ ;
-	}
-	return (0);
-}
-
-void
-quick_exit(int status)
-{
-	struct quick_exit_handler *h;
-
-	/*
-	 * XXX: The C++ spec requires us to call std::terminate if there is an
-	 * exception here.
-	 */
-	for (h = atomic_load_explicit(&handlers, memory_order_acquire);
-	     h != NULL; h = h->next) {
-		h->cleanup();
-	}
-	_Exit(status);
-}