sysdeps/hppa/dl-symaddr.c

   1 /* Get the symbol address.  HPPA version.
   2    Copyright (C) 1999, 2000 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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <ldsodefs.h>
  21 #include <dl-machine.h>
  22
  23 void *
  24 _dl_symbol_address (struct link_map *map, const ElfW(Sym) *ref)
  25 {
  26   /* Find the "ip" from the "map" and symbol "ref" */
  27   Elf32_Addr value = (map ? map->l_addr : 0) + ref->st_value;
  28
  29   /* On hppa, we have to return the pointer to function descriptor.
  30      This involves an "| 2" to inform $$dyncall that this is a plabel32  */
  31   if (ELFW(ST_TYPE) (ref->st_info) == STT_FUNC){
  32     return (void *)((unsigned long)_dl_make_fptr (map, ref, value) | 2);
  33   }
  34   else
  35     return (void *) value;
  36 }