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 HAVE_S390_COMPAT_REGS
       9  typedef struct {
      10  	uint32_t mask;
      11  	uint32_t addr;
      12  } ATTRIBUTE_ALIGNED(8) psw_compat_t;
      13  
      14  typedef struct {
      15  	psw_compat_t psw;
      16  	uint32_t gprs[NUM_GPRS];
      17  	uint32_t acrs[NUM_ACRS];
      18  	uint32_t orig_gpr2;
      19  } s390_compat_regs;
      20  #endif
      21  
      22  static union {
      23  	s390_compat_regs s390_regs;
      24  	s390_regs s390x_regs;
      25  } s390x_regs_union;
      26  
      27  #define s390_regset	s390x_regs_union.s390_regs
      28  #define s390x_regset	s390x_regs_union.s390x_regs
      29  
      30  static struct iovec s390x_io = {
      31  	.iov_base = &s390x_regs_union,
      32  };
      33  
      34  
      35  #define ARCH_REGS_FOR_GETREGSET  s390x_regs_union
      36  #define ARCH_IOVEC_FOR_GETREGSET s390x_io
      37  #define ARCH_PC_REG \
      38  	(s390x_io.iov_len == sizeof(s390_regset) ? \
      39  			     s390_regset.psw.addr : s390x_regset.psw.addr)
      40  #define ARCH_SP_REG \
      41  	(s390x_io.iov_len == sizeof(s390_regset) ? \
      42  			     s390_regset.gprs[15] : s390x_regset.gprs[15])
      43  
      44  #define ARCH_PERSONALITY_0_IOV_SIZE sizeof(s390x_regset)
      45  #define ARCH_PERSONALITY_1_IOV_SIZE sizeof(s390_regset)