+struct pt_regs;
+extern void do_signal(struct pt_regs *regs);
+extern void do_signal32(struct pt_regs *regs);
+
+extern int setup_frame(struct k_sigaction * ka, struct pt_regs *regs,
+ int signr, sigset_t *set);
+extern int setup_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
+ int signr, sigset_t *set, siginfo_t *info);
+
+extern int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
+ int signr, sigset_t *set);
+extern int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
+ int signr, sigset_t *set, siginfo_t *info);
+
+extern int setup_rt_frame_n32(struct k_sigaction * ka, struct pt_regs *regs,
+ int signr, sigset_t *set, siginfo_t *info);
+