#include <linux/types.h>
#include <asm/ptrace.h>
-asmlinkage long sys_ptrace(long request, long pid,
- unsigned long addr, long data);
asmlinkage long sys_iopl(unsigned int level, struct pt_regs *regs);
asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on);
struct sigaction;