sysdeps/hppa/dl-symaddr.c

   1 /* Get the symbol address.  HPPA version.
   2    Copyright (C) 1999-2018 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 #include <dl-machine.h>
  21
  22 void *
  23 _dl_symbol_address (struct link_map *map, const ElfW(Sym) *ref)
  24 {
  25   /* Find the "ip" from the "map" and symbol "ref" */
  26   Elf32_Addr value = SYMBOL_ADDRESS (map, ref, false);
  27
  28   /* On hppa, we have to return the pointer to function descriptor.
  29      This involves an "| 2" to inform $$dyncall that this is a plabel32  */
  30   if (ELFW(ST_TYPE) (ref->st_info) == STT_FUNC){
  31     return (void *)((unsigned long)_dl_make_fptr (map, ref, value) | 2);
  32   }
  33   else
  34     return (void *) value;
  35 }
  36 rtld_hidden_def (_dl_symbol_address)