54 lines
1.9 KiB
C
54 lines
1.9 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* do_global_dtors - invoke global destructors
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*
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* Copyright (c) 2018-2019 Dimitar Dimitrov <dimitar@dinux.eu>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdint.h>
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#include <_ansi.h>
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#include "syscall.h"
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extern void *__fini_array_start;
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extern void *__fini_array_end;
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/*
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* _do_global_dtors
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*/
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void
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_do_global_dtors (void)
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{
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/* ABI dictates pointers in init/fini arrays are 16-bit. */
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const uint16_t *end = (uint16_t *)&__fini_array_end;
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const uint16_t *begin = (uint16_t *)&__fini_array_start;
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const uint16_t *p;
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void (**dtor) (void);
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/* call destructors in reverse order */
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for (p = end; p > begin; ) {
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p--;
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dtor = (void *)p;
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(*dtor) ();
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}
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}
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