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  	kernel_ulong_t addr;
      12  	if (!get_stack_pointer(tcp, &addr))
      13  		return;
      14  
      15  	/* offset of ucontext in the kernel's sigframe structure */
      16  #define SIGFRAME_UC_OFFSET C_ABI_SAVE_AREA_SIZE + sizeof(siginfo_t)
      17  	addr += SIGFRAME_UC_OFFSET + offsetof(ucontext_t, uc_sigmask);
      18  
      19  	print_sigset_addr(tcp, addr);
      20  }