1/* Copyright (C) 2008-2020 Free Software Foundation, Inc.
2
3   This file is part of GDB.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18#include "defs.h"
19#include "windows-nat.h"
20#include "x86-nat.h"
21#include "i386-tdep.h"
22
23#include <windows.h>
24
25#ifdef __x86_64__
26#define CONTEXT WOW64_CONTEXT
27#endif
28#define context_offset(x) ((int)(size_t)&(((CONTEXT *)NULL)->x))
29const int i386_mappings[] =
30{
31  context_offset (Eax),
32  context_offset (Ecx),
33  context_offset (Edx),
34  context_offset (Ebx),
35  context_offset (Esp),
36  context_offset (Ebp),
37  context_offset (Esi),
38  context_offset (Edi),
39  context_offset (Eip),
40  context_offset (EFlags),
41  context_offset (SegCs),
42  context_offset (SegSs),
43  context_offset (SegDs),
44  context_offset (SegEs),
45  context_offset (SegFs),
46  context_offset (SegGs),
47  context_offset (FloatSave.RegisterArea[0 * 10]),
48  context_offset (FloatSave.RegisterArea[1 * 10]),
49  context_offset (FloatSave.RegisterArea[2 * 10]),
50  context_offset (FloatSave.RegisterArea[3 * 10]),
51  context_offset (FloatSave.RegisterArea[4 * 10]),
52  context_offset (FloatSave.RegisterArea[5 * 10]),
53  context_offset (FloatSave.RegisterArea[6 * 10]),
54  context_offset (FloatSave.RegisterArea[7 * 10]),
55  context_offset (FloatSave.ControlWord),
56  context_offset (FloatSave.StatusWord),
57  context_offset (FloatSave.TagWord),
58  context_offset (FloatSave.ErrorSelector),
59  context_offset (FloatSave.ErrorOffset),
60  context_offset (FloatSave.DataSelector),
61  context_offset (FloatSave.DataOffset),
62  context_offset (FloatSave.ErrorSelector)
63  /* XMM0-7 */ ,
64  context_offset (ExtendedRegisters[10*16]),
65  context_offset (ExtendedRegisters[11*16]),
66  context_offset (ExtendedRegisters[12*16]),
67  context_offset (ExtendedRegisters[13*16]),
68  context_offset (ExtendedRegisters[14*16]),
69  context_offset (ExtendedRegisters[15*16]),
70  context_offset (ExtendedRegisters[16*16]),
71  context_offset (ExtendedRegisters[17*16]),
72  /* MXCSR */
73  context_offset (ExtendedRegisters[24])
74};
75#undef context_offset
76#undef CONTEXT
77
78/* segment_register_p_ftype implementation for x86.  */
79
80int
81i386_windows_segment_register_p (int regnum)
82{
83  return regnum >= I386_CS_REGNUM && regnum <= I386_GS_REGNUM;
84}
85
86void _initialize_i386_windows_nat ();
87void
88_initialize_i386_windows_nat ()
89{
90#ifndef __x86_64__
91  x86_set_debug_register_length (4);
92#endif
93}
94