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 20 extern __thread void *so_extern; 21 extern __thread void *so_extern2; 22 23 static void * 24 tls_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 32 int 33 main (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