extern void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
size_t frame_size);
extern void restore_sigmask(sigset_t *set);
extern void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
size_t frame_size);
extern void restore_sigmask(sigset_t *set);