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/* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* do_global_dtors - invoke global destructors
*
* Copyright (c) 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
* 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 ``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 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 <stdint.h>
#include <_ansi.h>
#include "syscall.h"
extern void *__fini_array_start;
extern void *__fini_array_end;
/*
* _do_global_dtors
*/
void
_do_global_dtors (void)
{
/* ABI dictates pointers in init/fini arrays are 16-bit. */
const uint16_t *end = (uint16_t *)&__fini_array_end;
const uint16_t *begin = (uint16_t *)&__fini_array_start;
const uint16_t *p;
void (**dtor) (void);
/* call destructors in reverse order */
for (p = end; p > begin; ) {
p--;
dtor = (void *)p;
(*dtor) ();
}
}
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