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

   1 /* Variable initialization.  IA-64 version.
   2    Copyright (C) 2001-2014 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <ldsodefs.h>
  20
  21 #ifdef SHARED
  22
  23 void
  24 _dl_var_init (void *array[])
  25 {
  26   /* It has to match "variables" below. */
  27   enum
  28     {
  29       DL_PAGESIZE = 0,
  30       DL_CLKTCK
  31     };
  32
  33   GLRO(dl_pagesize) = *((size_t *) array[DL_PAGESIZE]);
  34   GLRO(dl_clktck) = *((int *) array[DL_CLKTCK]);
  35 }
  36
  37 #else
  38
  39 static void *variables[] =
  40 {
  41   &GLRO(dl_pagesize),
  42   &GLRO(dl_clktck)
  43 };
  44
  45 void
  46 _dl_static_init (struct link_map *map)
  47 {
  48   const ElfW(Sym) *ref = NULL;
  49   lookup_t loadbase;
  50   void (*f) (void *[]);
  51
  52   loadbase = _dl_lookup_symbol_x ("_dl_var_init", map, &ref,
  53                                   map->l_local_scope, NULL, 0, 1, NULL);
  54   if (ref != NULL)
  55     {
  56       f = (void (*) (void *[])) DL_SYMBOL_ADDRESS (loadbase, ref);
  57       f (variables);
  58     }
  59 }
  60
  61 #endif