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/* Invoke DT_FINI and DT_FINI_ARRAY callbacks.
Copyright (C) 1996-2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <ldsodefs.h>
#include <sysdep.h>
void
_dl_call_fini (void *closure_map)
{
struct link_map *map = closure_map;
/* When debugging print a message first. */
if (__glibc_unlikely (GLRO(dl_debug_mask) & DL_DEBUG_IMPCALLS))
_dl_debug_printf ("\ncalling fini: %s [%lu]\n\n", map->l_name, map->l_ns);
/* Make sure nothing happens if we are called twice. */
map->l_init_called = 0;
ElfW(Dyn) *fini_array = map->l_info[DT_FINI_ARRAY];
if (fini_array != NULL)
{
ElfW(Addr) *array = (ElfW(Addr) *) (map->l_addr
+ fini_array->d_un.d_ptr);
size_t sz = (map->l_info[DT_FINI_ARRAYSZ]->d_un.d_val
/ sizeof (ElfW(Addr)));
while (sz-- > 0)
((fini_t) array[sz]) ();
}
/* Next try the old-style destructor. */
ElfW(Dyn) *fini = map->l_info[DT_FINI];
if (fini != NULL)
DL_CALL_DT_FINI (map, ((void *) map->l_addr + fini->d_un.d_ptr));
}
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