compat_lr
return regs->compat_lr;
lr = regs->compat_lr;
__get_user_error(regs->compat_lr, &sf->uc.uc_mcontext.arm_lr, err);
regs->compat_lr = retcode;
__put_user_error(regs->compat_lr, &sf->uc.uc_mcontext.arm_lr, err);