1/* This testcase is part of GDB, the GNU debugger.
2
3   Copyright 2015-2023 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program 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
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18#include <pthread.h>
19
20extern __thread void *so_extern;
21extern __thread void *so_extern2;
22
23static void *
24tls_ptr (void *p)
25{
26   so_extern = &so_extern;
27   so_extern2 = &so_extern2; /* break here to check result */
28
29   return NULL;
30}
31
32int
33main (void)
34{
35   pthread_t threads[2];
36
37   tls_ptr (NULL);
38
39   pthread_create (&threads[0], NULL, tls_ptr, NULL);
40   pthread_create (&threads[1], NULL, tls_ptr, NULL);
41
42   pthread_join (threads[0], NULL);
43   pthread_join (threads[1], NULL);
44
45   tls_ptr (NULL);
46
47   return 0;
48}
49
50