text: /* GNU/Linux S/390 specific low level interface, for the remote server
     for GDB.
     Copyright 2001, 2002
     Free Software Foundation, Inc.
  
     This file is part of GDB.
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.  */
  
  /* This file is used for both 31-bit and 64-bit S/390 systems.  */
  
  #include "server.h"
  #include "linux-low.h"
  
  #include <asm/ptrace.h>
  
  #define s390_num_regs 51
  
  static int s390_regmap[] = {
    PT_PSWMASK, PT_PSWADDR,
  
    PT_GPR0, PT_GPR1, PT_GPR2, PT_GPR3,
    PT_GPR4, PT_GPR5, PT_GPR6, PT_GPR7,
    PT_GPR8, PT_GPR9, PT_GPR10, PT_GPR11,
    PT_GPR12, PT_GPR13, PT_GPR14, PT_GPR15,
  
    PT_ACR0, PT_ACR1, PT_ACR2, PT_ACR3,
    PT_ACR4, PT_ACR5, PT_ACR6, PT_ACR7,
    PT_ACR8, PT_ACR9, PT_ACR10, PT_ACR11,
    PT_ACR12, PT_ACR13, PT_ACR14, PT_ACR15,
  
    PT_FPC,
  
  #ifndef __s390x__
    PT_FPR0_HI, PT_FPR1_HI, PT_FPR2_HI, PT_FPR3_HI,
    PT_FPR4_HI, PT_FPR5_HI, PT_FPR6_HI, PT_FPR7_HI,
    PT_FPR8_HI, PT_FPR9_HI, PT_FPR10_HI, PT_FPR11_HI,
    PT_FPR12_HI, PT_FPR13_HI, PT_FPR14_HI, PT_FPR15_HI,
  #else
    PT_FPR0, PT_FPR1, PT_FPR2, PT_FPR3,
    PT_FPR4, PT_FPR5, PT_FPR6, PT_FPR7,
    PT_FPR8, PT_FPR9, PT_FPR10, PT_FPR11,
    PT_FPR12, PT_FPR13, PT_FPR14, PT_FPR15,
  #endif
  };
  
  static int
  s390_cannot_fetch_register (int regno)
  {
    if (s390_regmap[regno] == -1)
      return 1;
  
    return 0;
  }
  
  static int
  s390_cannot_store_register (int regno)
  {
    if (s390_regmap[regno] == -1)
      return 1;
  
    return 0;
  }
  
  struct linux_target_ops the_low_target = {
    s390_num_regs,
    s390_regmap,
    s390_cannot_fetch_register,
    s390_cannot_store_register,
  };
  