elf/dl-symaddr.c

   1 /* Get the symbol address.  Generic version.
   2    Copyright (C) 1999-2017 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-fptr.h>
  21
  22 void *
  23 _dl_symbol_address (struct link_map *map, const ElfW(Sym) *ref)
  24 {
  25   ElfW(Addr) value = (map ? map->l_addr : 0) + ref->st_value;
  26
  27   /* Return the pointer to function descriptor. */
  28   if (ELFW(ST_TYPE) (ref->st_info) == STT_FUNC)
  29     return (void *) _dl_make_fptr (map, ref, value);
  30   else
  31     return (void *) value;
  32 }
  33 rtld_hidden_def (_dl_symbol_address)