1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2016 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 #define _GNU_SOURCE 19 #include <stdlib.h> 20 #include <unistd.h> 21 #include <sched.h> 22 23 static void 24 marker () 25 {} 26 27 #define STACK_SIZE 0x1000 28 29 static int 30 clone_fn (void *unused) 31 { 32 return 0; 33 } 34 35 int 36 main (void) 37 { 38 int i, pid; 39 unsigned char *stack[6]; 40 41 for (i = 0; i < (sizeof (stack) / sizeof (stack[0])); i++) 42 stack[i] = malloc (STACK_SIZE); 43 44 for (i = 0; i < (sizeof (stack) / sizeof (stack[0])); i++) 45 { 46 pid = clone (clone_fn, stack[i] + STACK_SIZE, CLONE_FILES | CLONE_VM, 47 NULL); 48 } 49 50 for (i = 0; i < (sizeof (stack) / sizeof (stack[0])); i++) 51 free (stack[i]); 52 53 marker (); 54 } 55