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 19 #define _GNU_SOURCE 20 #include <sched.h> 21 #include <assert.h> 22 #include <stdlib.h> 23 #include <sys/types.h> 24 #include <sys/wait.h> 25 #include <unistd.h> 26 27 #define STACK_SIZE 0x1000 28 29 int clone_pid; 30 31 static int 32 clone_fn (void *unused) 33 { 34 /* Wait for alarm. */ 35 while (1) 36 sleep (1); 37 return 0; 38 } 39 40 int 41 main (int argc, char **argv) 42 { 43 unsigned char *stack; 44 int res; 45 46 alarm (300); 47 48 stack = malloc (STACK_SIZE); 49 assert (stack != NULL); 50 51 #define CLONE_FLAGS (CLONE_THREAD | CLONE_SIGHAND | CLONE_VM) 52 53 #ifdef __ia64__ 54 clone_pid = __clone2 (clone_fn, stack, STACK_SIZE, CLONE_FLAGS, NULL); 55 #else 56 clone_pid = clone (clone_fn, stack + STACK_SIZE, CLONE_FLAGS, NULL); 57 #endif 58 59 assert (clone_pid > 0); 60 61 /* Wait for alarm. */ 62 while (1) 63 sleep (1); 64 65 return 0; 66 } 67