mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
65bf5fa317
Fri Dec 8 13:04:51 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * posix/glob.c: Implement new options GLOB_ALTDIRFUNC, GLOB_BRACE, GLOB_TILDE, GLOB_NOMAGIC. (glob): Use stat instead of lstat to determine directoriness. * posix/glob.h (GLOB_ALTDIRFUNC, GLOB_BRACE, GLOB_NOMAGIC, GLOB_TILDE): New flag bits. (__GLOB_FLAGS): Include them. (glob_t): New members gl_closedir, gl_readdir, gl_opendir, gl_lstat, gl_stat.
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/* Return the next shared object initializer function not yet run.
|
|
Copyright (C) 1995 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., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <stddef.h>
|
|
#include <link.h>
|
|
|
|
|
|
Elf32_Addr
|
|
_dl_init_next (void)
|
|
{
|
|
struct link_map *l;
|
|
Elf32_Addr init;
|
|
|
|
Elf32_Addr next_init (struct link_map *l)
|
|
{
|
|
if (l->l_init_called)
|
|
/* This object is all done. */
|
|
return 0;
|
|
if (l->l_init_running)
|
|
{
|
|
/* This object's initializer was just running.
|
|
Now mark it as having run, so this object
|
|
will be skipped in the future. */
|
|
l->l_init_called = 1;
|
|
l->l_init_running = 0;
|
|
return 0;
|
|
}
|
|
|
|
if (l->l_info[DT_NEEDED])
|
|
{
|
|
/* Find each dependency in order, and see if it
|
|
needs to run an initializer. */
|
|
const char *strtab
|
|
= ((void *) l->l_addr + l->l_info[DT_STRTAB]->d_un.d_ptr);
|
|
const Elf32_Dyn *d;
|
|
for (d = l->l_ld; d->d_tag != DT_NULL; ++d)
|
|
if (d->d_tag == DT_NEEDED)
|
|
{
|
|
struct link_map *needed
|
|
= _dl_map_object (l, strtab + d->d_un.d_val);
|
|
Elf32_Addr init;
|
|
--needed->l_opencount;
|
|
init = next_init (needed); /* Recurse on this dependency. */
|
|
if (init != 0)
|
|
return init;
|
|
}
|
|
}
|
|
|
|
if (l->l_info[DT_INIT] &&
|
|
!(l->l_name[0] == '\0' && l->l_type == lt_executable))
|
|
{
|
|
/* Run this object's initializer. */
|
|
l->l_init_running = 1;
|
|
return l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr;
|
|
}
|
|
|
|
/* No initializer for this object.
|
|
Mark it so we will skip it in the future. */
|
|
l->l_init_called = 1;
|
|
return 0;
|
|
}
|
|
|
|
/* Look for the first initializer not yet called. */
|
|
l = _dl_loaded;
|
|
do
|
|
{
|
|
init = next_init (l);
|
|
l = l->l_next;
|
|
}
|
|
while (init == 0 && l);
|
|
|
|
return init;
|
|
}
|