text: /* Locate the shared object symbol nearest a given address.
     Copyright (C) 2003, 2004 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
  
     The GNU C Library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.
  
     The GNU C Library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public
     License along with the GNU C Library; if not, write to the Free
     Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     02111-1307 USA.  */
  
  #include <dlfcn.h>
  
  #if !defined SHARED && defined IS_IN_libdl
  
  int
  dladdr1 (const void *address, Dl_info *info, void **extra, int flags)
  {
    return __dladdr1 (address, info, extra, flags);
  }
  
  #else
  
  int
  __dladdr1 (const void *address, Dl_info *info, void **extra, int flags)
  {
  # ifdef SHARED
    if (__builtin_expect (_dlfcn_hook != NULL, 0))
      return _dlfcn_hook->dladdr1 (address, info, extra, flags);
  # endif
  
    switch (flags)
      {
      default:			/* Make this an error?  */
      case 0:
        return _dl_addr (address, info, NULL, NULL);
      case RTLD_DL_SYMENT:
        return _dl_addr (address, info, NULL, (const ElfW(Sym) **) extra);
      case RTLD_DL_LINKMAP:
        return _dl_addr (address, info, (struct link_map **) extra, NULL);
      }
  }
  # ifdef SHARED
  strong_alias (__dladdr1, dladdr1)
  # endif
  #endif
  