gdb/i386-windows-nat.c

/* Copyright (C) 2008-2023 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/>.  */

#include "defs.h"
#include "windows-nat.h"
#include "x86-nat.h"
#include "i386-tdep.h"

#include <windows.h>

#ifdef __x86_64__
#define CONTEXT WOW64_CONTEXT
#endif
#define context_offset(x) ((int) (size_t) & (((CONTEXT *) NULL)->x))
const int i386_mappings[]
  = { context_offset (Eax), context_offset (Ecx), context_offset (Edx),
      context_offset (Ebx), context_offset (Esp), context_offset (Ebp),
      context_offset (Esi), context_offset (Edi), context_offset (Eip),
      context_offset (EFlags), context_offset (SegCs), context_offset (SegSs),
      context_offset (SegDs), context_offset (SegEs), context_offset (SegFs),
      context_offset (SegGs), context_offset (FloatSave.RegisterArea[0 * 10]),
      context_offset (FloatSave.RegisterArea[1 * 10]),
      context_offset (FloatSave.RegisterArea[2 * 10]),
      context_offset (FloatSave.RegisterArea[3 * 10]),
      context_offset (FloatSave.RegisterArea[4 * 10]),
      context_offset (FloatSave.RegisterArea[5 * 10]),
      context_offset (FloatSave.RegisterArea[6 * 10]),
      context_offset (FloatSave.RegisterArea[7 * 10]),
      context_offset (FloatSave.ControlWord),
      context_offset (FloatSave.StatusWord),
      context_offset (FloatSave.TagWord),
      context_offset (FloatSave.ErrorSelector),
      context_offset (FloatSave.ErrorOffset),
      context_offset (FloatSave.DataSelector),
      context_offset (FloatSave.DataOffset),
      context_offset (FloatSave.ErrorSelector)
      /* XMM0-7 */,
      context_offset (ExtendedRegisters[10 * 16]),
      context_offset (ExtendedRegisters[11 * 16]),
      context_offset (ExtendedRegisters[12 * 16]),
      context_offset (ExtendedRegisters[13 * 16]),
      context_offset (ExtendedRegisters[14 * 16]),
      context_offset (ExtendedRegisters[15 * 16]),
      context_offset (ExtendedRegisters[16 * 16]),
      context_offset (ExtendedRegisters[17 * 16]),
      /* MXCSR */
      context_offset (ExtendedRegisters[24]) };
#undef context_offset
#undef CONTEXT

/* segment_register_p_ftype implementation for x86.  */

int
i386_windows_segment_register_p (int regnum)
{
  return regnum >= I386_CS_REGNUM && regnum <= I386_GS_REGNUM;
}

void _initialize_i386_windows_nat ();

void
_initialize_i386_windows_nat ()
{
#ifndef __x86_64__
  x86_set_debug_register_length (4);
#endif
}