1  /* Test relocation ordering if the main executable is libc.so.6 (bug 20972).
       2     Copyright (C) 2020-2023 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     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <gnu/lib-names.h>
      20  #include <stdio.h>
      21  #include <support/support.h>
      22  #include <unistd.h>
      23  
      24  int
      25  main (void)
      26  {
      27    char *libc = xasprintf ("%s/%s", support_slibdir_prefix, LIBC_SO);
      28    char *argv[] = { libc, NULL };
      29    char *envp[] = { (char *) "LD_PRELOAD=" LIBPTHREAD_SO,
      30      /* Relocation ordering matters most without lazy binding.  */
      31      (char *) "LD_BIND_NOW=1",
      32      NULL };
      33    execve (libc, argv, envp);
      34    printf ("execve of %s failed: %m\n", libc);
      35    return 1;
      36  }