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fcf70d4114
1999-07-24 Ulrich Drepper <drepper@cygnus.com> * elf/dl-fini.c: Handle DT_FINI_ARRAY. * elf/link.h (struct link_map): Remove l_init_running. Add l_runcount and l_initcount. * elf/dl-init.c: Handle DT_INIT_ARRAY. * elf/dynamic-link.h: Change parameters. Now only get link_map pointer. Calculate l_initcount. * elf/link.h (struct link_map): Add l_runpath_dirs. * elf/dynamic-link.h: If RUNPATH is given, set RPATH to NULL. * elf/dl-load.c: Pretty print. (decompose_rpath): Take new parameter with info from where the path comes. Pass it the fillin_rpath. (_dl_init_paths): Initialize l_runpath_dirs. (_dl_map_object): Don't search using RPATHs if object has RUNPATH. Search using RUNPATH after LD_LIBRARY_PATH. * elf/dl-support.c: Adjust comment. * elf/rtld.c: Adjust help message.
103 lines
3.0 KiB
C
103 lines
3.0 KiB
C
/* Return the next shared object 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_init_next (struct r_scope_elem *searchlist)
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{
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unsigned int i;
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/* The search list for symbol lookup is a flat list in top-down
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dependency order, so processing that list from back to front gets us
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breadth-first leaf-to-root order. */
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i = searchlist->r_nlist;
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while (i-- > 0)
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{
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struct link_map *l = searchlist->r_list[i];
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ElfW(Addr) *array;
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if (l->l_init_called)
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/* This object is all done. */
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continue;
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/* Check for object which constructors we do not run here.
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XXX Maybe this should be pre-computed, but where? */
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if (l->l_name[0] == '\0' && l->l_type == lt_executable)
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{
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l->l_init_called = 1;
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continue;
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}
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/* Account for running next constructor. */
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++l->l_runcount;
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if (l->l_runcount == 1)
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{
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/* Try running the DT_INIT constructor. */
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if (l->l_info[DT_INIT])
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{
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/* Print a debug message if wanted. */
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if (_dl_debug_impcalls)
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_dl_debug_message (1, "\ncalling init: ",
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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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return l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr;
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}
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/* No DT_INIT, so go on with the array. */
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++l->l_runcount;
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}
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if (l->l_runcount > l->l_initcount)
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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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l->l_init_called = 1;
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continue;
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}
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/* Print a debug message if wanted. */
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if (_dl_debug_impcalls && l->l_info[DT_INIT] == NULL
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&& l->l_runcount == 2)
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_dl_debug_message (1, "\ncalling init: ",
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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_INIT_ARRAY]->d_un.d_ptr;
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return l->l_addr + array[l->l_runcount - 2];
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/* NOTREACHED */
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}
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/* Notify the debugger all new objects are now ready to go. */
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_r_debug.r_state = RT_CONSISTENT;
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_dl_debug_state ();
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return 0;
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}
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