1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2019-2020 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 <stdio.h> 19 #include <unistd.h> 20 #include <stdlib.h> 21 #include <pthread.h> 22 23 #define NUM 2 24 25 static pthread_barrier_t threads_started_barrier; 26 27 static void * 28 thread_function (void *arg) 29 { 30 pthread_barrier_wait (&threads_started_barrier); 31 32 while (1) 33 { 34 /* Sleep a bit to give the other threads a chance to run. */ 35 usleep (1); /* set breakpoint here */ 36 } 37 38 pthread_exit (NULL); 39 } 40 41 static void 42 all_started (void) 43 { 44 } 45 46 int 47 main () 48 { 49 pthread_t threads[NUM]; 50 long i; 51 52 pthread_barrier_init (&threads_started_barrier, NULL, NUM + 1); 53 54 for (i = 1; i <= NUM; i++) 55 { 56 int res; 57 58 res = pthread_create (&threads[i - 1], 59 NULL, 60 thread_function, NULL); 61 } 62 63 pthread_barrier_wait (&threads_started_barrier); 64 65 all_started (); 66 67 sleep (180); 68 69 exit (EXIT_SUCCESS); 70 } 71