1: /* Locate the shared object symbol nearest a given address.
    2:    Copyright (C) 1996, 1997, 1998, 1999, 2003, 2004
    3:    Free Software Foundation, Inc.
    4:    This file is part of the GNU C Library.
    5: 
    6:    The GNU C Library is free software; you can redistribute it and/or
    7:    modify it under the terms of the GNU Lesser General Public
    8:    License as published by the Free Software Foundation; either
    9:    version 2.1 of the License, or (at your option) any later version.
   10: 
   11:    The GNU C Library is distributed in the hope that it will be useful,
   12:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   13:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   14:    Lesser General Public License for more details.
   15: 
   16:    You should have received a copy of the GNU Lesser General Public
   17:    License along with the GNU C Library; if not, write to the Free
   18:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   19:    02111-1307 USA.  */
   20: 
   21: #include <dlfcn.h>
   22: 
   23: #if !defined SHARED && defined IS_IN_libdl
   24: 
   25: int
   26: dladdr (const void *address, Dl_info *info)
   27: {
   28:   return __dladdr (address, info);
   29: }
   30: 
   31: #else
   32: 
   33: int
   34: __dladdr (const void *address, Dl_info *info)
   35: {
   36: # ifdef SHARED
   37:   if (__builtin_expect (_dlfcn_hook != NULL, 0))
   38:     return _dlfcn_hook->dladdr (address, info);
   39: # endif
   40:   return _dl_addr (address, info, NULL, NULL);
   41: }
   42: # ifdef SHARED
   43: strong_alias (__dladdr, dladdr)
   44: # endif
   45: #endif