glibc/sysdeps/unix/sysv/linux/ia64/dl-static.c

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/* Variable initialization. IA-64 version.
Copyright (C) 2001 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 <ldsodefs.h>
extern int _dl_clktck;
#ifdef SHARED
void
_dl_var_init (void *array[])
{
/* It has to match "variables" below. */
enum
{
DL_PAGESIZE = 0,
DL_CLKTCK
};
_dl_pagesize = *((size_t *) array[DL_PAGESIZE]);
_dl_clktck = *((int *) array[DL_CLKTCK]);
}
#else
#include <bits/libc-lock.h>
__libc_lock_define_initialized_recursive (static, _dl_static_lock)
static void *variables[] =
{
&_dl_pagesize,
&_dl_clktck
};
void
_dl_static_init (struct link_map *map)
{
const ElfW(Sym) *ref;
lookup_t loadbase;
void (*f) (void *[]);
__libc_lock_lock (_dl_static_lock);
loadbase = _dl_lookup_symbol ("_dl_var_init", map, &ref,
map->l_local_scope, 0, 1);
if (ref != NULL)
{
f = (void (*) (void *[])) DL_SYMBOL_ADDRESS (loadbase, ref);
f (variables);
}
__libc_lock_unlock (_dl_static_lock);
}
#endif