Merge GDB 7.5.1

gdb/gdbserver/linux-s390-low.c

 /* GNU/Linux S/390 specific low level interface, for the remote server
    for GDB.
    Copyright (C) 2001-2002, 2005-2012 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 3 of the License, or
    (at your option) any later version.
@@ skipping 443 matching lines @@
   unsigned char c[s390_breakpoint_len];
   read_inferior_memory (pc, c, s390_breakpoint_len);
   return memcmp (c, s390_breakpoint, s390_breakpoint_len) == 0;
 }
 
 
 struct linux_target_ops the_low_target = {
   s390_arch_setup,
   s390_num_regs,
   s390_regmap,
+  NULL,
   s390_cannot_fetch_register,
   s390_cannot_store_register,
+  NULL, /* fetch_register */
   s390_get_pc,
   s390_set_pc,
   s390_breakpoint,
   s390_breakpoint_len,
   NULL,
   s390_breakpoint_len,
   s390_breakpoint_at,
   NULL,
   NULL,
   NULL,
   NULL,
   s390_collect_ptrace_register,
   s390_supply_ptrace_register,
 };