strace/test/clone.c

#include <stdio.h>
#include <sched.h>

int child(void* arg) {
    write(1, "clone\n", 6);
    return 0;
}

int
main()
{
    	char	stack[4096];
	clone(child, stack+4000, CLONE_VM|CLONE_FS|CLONE_FILES, NULL);
	write(1, "original\n", 9);
	exit(0);
}