signal_fault
void signal_fault(struct task_struct *tsk, struct pt_regs *regs,
signal_fault(current, regs, "sys_rt_sigreturn", rt_sf);
signal_fault(current, regs, "sys_debug_setcontext", ctx);
signal_fault(current, regs, "sys_sigreturn", sr);
signal_fault(current, regs, "sys_sigreturn", sc);
signal_fault(tsk, regs, "handle_rt_signal32", frame);
signal_fault(tsk, regs, "handle_signal32", frame);
signal_fault(current, regs, "rt_sigreturn", uc);
signal_fault(current, regs, "handle_rt_signal64", frame);
void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
signal_fault(regs, frame, "32bit sigreturn");
signal_fault(regs, frame, "32bit rt sigreturn");
signal_fault(regs, frame, "rt_sigreturn");
signal_fault(regs, frame, "x32 rt_sigreturn");