Merge GDB 7.5.1

gdb/windows-nat.h

 /* Copyright 2008-2012 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.
 
    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, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef WINDOWS_NAT_H
 #define WINDOWS_NAT_H
 
 extern void windows_set_context_register_offsets (const int *offsets);
 
+/* A pointer to a function that should return non-zero iff REGNUM
+   corresponds to one of the segment registers.  */
+typedef int (segment_register_p_ftype) (int regnum);
+
+/* Set the function that should be used by this module to determine
+   whether a given register is a segment register or not.  */
+extern void windows_set_segment_register_p (segment_register_p_ftype *fun);
+
 #endif