1/* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2011-2023 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 <unistd.h> 19 20static void 21marker () {} 22 23int 24main (void) 25{ 26 int pid; 27 28 pid = vfork (); 29 if (pid == -1) 30 { 31 return 1; 32 } 33 else if (pid != 0) 34 { 35 } 36 else 37 { 38 _exit (0); 39 } 40 41 pid = vfork (); 42 if (pid == -1) 43 { 44 return 1; 45 } 46 else if (pid != 0) 47 { 48 } 49 else 50 { 51 _exit (0); 52 } 53 54 pid = vfork (); 55 if (pid == -1) 56 { 57 return 1; 58 } 59 else if (pid != 0) 60 { 61 } 62 else 63 { 64 _exit (0); 65 } 66 67 marker (); 68 return 0; 69 70} 71