76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/* Call the termination functions of loaded shared objects.
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Copyright (C) 1995, 1996, 1998, 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <elf/ldsodefs.h>
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void
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internal_function
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_dl_fini (void)
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{
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struct link_map *l;
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for (l = _dl_loaded; l; l = l->l_next)
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if (l->l_init_called)
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{
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int first = 1;
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/* Make sure nothing happens if we are called twice. */
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l->l_init_called = 0;
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/* Don't call the destructors for objects we are not supposed to. */
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if (l->l_name[0] == '\0' && l->l_type == lt_executable)
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continue;
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/* First see whether an array is given. */
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if (l->l_info[DT_FINI_ARRAY] != NULL)
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{
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ElfW(Addr) *array =
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(ElfW(Addr) *) (l->l_addr
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+ l->l_info[DT_FINI_ARRAY]->d_un.d_ptr);
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unsigned int sz = (l->l_info[DT_FINI_ARRAYSZ]->d_un.d_val
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/ sizeof (ElfW(Addr)));
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unsigned int cnt;
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for (cnt = 0; cnt < sz; ++cnt)
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{
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/* When debugging print a message first. */
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if (_dl_debug_impcalls && first)
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_dl_debug_message (1, "\ncalling fini: ",
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l->l_name[0] ? l->l_name : _dl_argv[0],
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"\n\n", NULL);
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first = 0;
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(*(void (*) (void)) (l->l_addr + array[cnt])) ();
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}
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}
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/* Next try the old-style destructor. */
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if (l->l_info[DT_FINI])
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{
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/* When debugging print a message first. */
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if (_dl_debug_impcalls && first)
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_dl_debug_message (1, "\ncalling fini: ",
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l->l_name[0] ? l->l_name : _dl_argv[0],
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"\n\n", NULL);
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(*(void (*) (void)) (l->l_addr + l->l_info[DT_FINI]->d_un.d_ptr)) ();
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}
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}
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}
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