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/* Return the next shared object initializer function not yet run.
Copyright (C) 1995, 1996, 1998, 1999 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stddef.h>
#include <elf/ldsodefs.h>
/* Run initializers for MAP and its dependencies, in inverse dependency
order (that is, leaf nodes first). */
ElfW(Addr)
internal_function
_dl_init_next (struct r_scope_elem *searchlist)
{
unsigned int i;
/* The search list for symbol lookup is a flat list in top-down
dependency order, so processing that list from back to front gets us
breadth-first leaf-to-root order. */
i = searchlist->r_nlist;
while (i-- > 0)
{
struct link_map *l = searchlist->r_list[i];
ElfW(Addr) *array;
if (l->l_init_called)
/* This object is all done. */
continue;
/* Check for object which constructors we do not run here.
XXX Maybe this should be pre-computed, but where? */
if (l->l_name[0] == '\0' && l->l_type == lt_executable)
{
l->l_init_called = 1;
continue;
}
/* Account for running next constructor. */
++l->l_runcount;
if (l->l_runcount == 1)
{
/* Try running the DT_INIT constructor. */
if (l->l_info[DT_INIT])
{
/* Print a debug message if wanted. */
if (_dl_debug_impcalls)
_dl_debug_message (1, "\ncalling init: ",
l->l_name[0] ? l->l_name : _dl_argv[0],
"\n\n", NULL);
return l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr;
}
/* No DT_INIT, so go on with the array. */
++l->l_runcount;
}
if (l->l_runcount > l->l_initcount)
{
/* That were all of the constructors. */
l->l_runcount = 0;
l->l_init_called = 1;
continue;
}
/* Print a debug message if wanted. */
if (_dl_debug_impcalls && l->l_info[DT_INIT] == NULL
&& l->l_runcount == 2)
_dl_debug_message (1, "\ncalling init: ",
l->l_name[0] ? l->l_name : _dl_argv[0],
"\n\n", NULL);
array = (ElfW(Addr) *) l->l_info[DT_INIT_ARRAY]->d_un.d_ptr;
return l->l_addr + array[l->l_runcount - 2];
/* NOTREACHED */
}
/* Notify the debugger all new objects are now ready to go. */
_r_debug.r_state = RT_CONSISTENT;
_dl_debug_state ();
return 0;
}
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