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  static void
       9  arch_sigreturn(struct tcb *tcp)
      10  {
      11  	/* TODO: Verify that this is correct...  */
      12  
      13  	unsigned long addr;
      14  
      15  	/* Read r1, the stack pointer.  */
      16  	if (upeek(tcp, 1 * 4, &addr) < 0)
      17  		return;
      18  	addr += offsetof(struct sigcontext, oldmask);
      19  
      20  	print_sigset_addr(tcp, addr);
      21  }