long sys_execve(char __user *filename, char __user * __user *argv,
char __user * __user *envp, struct pt_regs *regs);
asmlinkage long sys_pipe(void);
-asmlinkage long sys_ptrace(long request, pid_t pid,
- unsigned long addr, unsigned long data);
asmlinkage long sys_rt_sigaction(int sig,
const struct sigaction __user *act,
struct sigaction __user *oact,