1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2008-2020 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 /* Test handling thread control across an execl. */ 19 20 /* The original image loads a thread library and has several threads, 21 while the new image does not load a thread library. */ 22 23 #include <unistd.h> 24 #include <pthread.h> 25 #include <stdio.h> 26 #include <string.h> 27 #include <stdlib.h> 28 29 void * 30 thread_function (void *arg) 31 { 32 while (1) 33 sleep (100); 34 return NULL; 35 } 36 37 int 38 main (int argc, char* argv[]) 39 { 40 pthread_t thread1; 41 pthread_t thread2; 42 char *new_image; 43 44 pthread_create (&thread1, NULL, thread_function, NULL); 45 pthread_create (&thread2, NULL, thread_function, NULL); 46 47 new_image = malloc (strlen (argv[0]) + 2); 48 strcpy (new_image, argv[0]); 49 strcat (new_image, "1"); 50 51 if (execl (new_image, new_image, NULL) == -1) /* set breakpoint here */ 52 return 1; 53 54 return 0; 55 } 56