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e28bacf578
* elf/Makefile (dl-routines): Add preinit. * elf/Versions [ld.so] (GLIBC_2.2): Export _dl_preinit_next. * elf/link.h (struct link_map): Add new field l_preinitcount. * elf/dl-preinit.c: New file. * elf/dynamic-link.h: Initialize l_preinitcount. * sysdeps/i386/dl-machine.h (RTLD_START): Call pre-init functions.
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
/* Return the next shared object pre-initializer function not yet run.
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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 <stddef.h>
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#include <elf/ldsodefs.h>
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/* Run initializers for MAP and its dependencies, in inverse dependency
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order (that is, leaf nodes first). */
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ElfW(Addr)
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internal_function
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_dl_preinit_next (struct r_scope_elem *searchlist)
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{
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struct link_map *l = searchlist->r_list[0];
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ElfW(Addr) *array;
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if (l->l_runcount >= l->l_preinitcount)
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{
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/* That were all of the constructors. */
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l->l_runcount = 0;
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return 0;
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}
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/* Print a debug message if wanted. */
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if (_dl_debug_impcalls && l->l_runcount == 0)
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_dl_debug_message (1, "\ncalling preinit: ",
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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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array = (ElfW(Addr) *) l->l_info[DT_PREINIT_ARRAY]->d_un.d_ptr;
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return l->l_addr + array[l->l_runcount++];
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}
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