1  /*
       2   * Copyright (c) 2015-2021 The strace developers.
       3   * All rights reserved.
       4   *
       5   * SPDX-License-Identifier: LGPL-2.1-or-later
       6   */
       7  
       8  #ifndef SIGNAL_FRAMESIZE
       9  # define SIGNAL_FRAMESIZE 96
      10  #endif
      11  #ifndef PTR_TYPE
      12  # define PTR_TYPE unsigned long
      13  #endif
      14  
      15  static void
      16  arch_sigreturn(struct tcb *tcp)
      17  {
      18  	kernel_ulong_t addr;
      19  
      20  	if (!get_stack_pointer(tcp, &addr))
      21  		return;
      22  	addr += SIGNAL_FRAMESIZE;
      23  
      24  	PTR_TYPE mask[NSIG_BYTES / sizeof(PTR_TYPE)];
      25  	if (!umove_or_printaddr(tcp, addr, &mask)) {
      26  		tprintsigmask_addr(mask);
      27  	}
      28  }