text: static void
  arch_sigreturn(struct tcb *tcp)
  {
  	unsigned long mask[NSIG_BYTES / sizeof(long)];
  	const unsigned long addr = *s390_frame_ptr + __SIGNAL_FRAMESIZE;
  
  	if (umove(tcp, addr, &mask) < 0) {
  		tprintf("{mask=%#lx}", addr);
  	} else {
  		tprintsigmask_addr("{mask=", mask);
  		tprints("}");
  	}
  }
  