1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2017-2023 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 <stdlib.h> 19 #include <unistd.h> 20 21 /* GDB reads this to figure out the child's PID. */ 22 pid_t child_pid; 23 24 void 25 marker (void) 26 { 27 } 28 29 int 30 main () 31 { 32 alarm (60); 33 34 child_pid = fork (); 35 if (child_pid == -1) 36 return 1; 37 38 while (1) 39 { 40 marker (); 41 usleep (1000); 42 } 43 44 return 0; 45 } 46