1/* Test relocation ordering if the main executable is libc.so.6 (bug 20972).
2 Copyright (C) 2020-2024 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
24int
25main (void)
26{
27 char *libc = xasprintf (format: "%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 (path: libc, argv: argv, envp: envp);
34 printf (format: "execve of %s failed: %m\n", libc);
35 return 1;
36}
37

source code of glibc/elf/tst-preload-pthread-libc.c