+long sys_iopl(unsigned int, struct pt_regs *);
+
+/* kernel/process.c */
+int sys_fork(struct pt_regs *);
+int sys_vfork(struct pt_regs *);
+long sys_execve(char __user *, char __user * __user *,
+ char __user * __user *, struct pt_regs *);
+long sys_clone(unsigned long, unsigned long, void __user *,
+ void __user *, struct pt_regs *);