gdb/i386-windows-nat.c

   1 /* Copyright (C) 2008-2024 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 "windows-nat.h"
  19 #include "x86-nat.h"
  20 #include "i386-tdep.h"
  21
  22 #include <windows.h>
  23
  24 #ifdef __x86_64__
  25 #define CONTEXT WOW64_CONTEXT
  26 #endif
  27 #define context_offset(x) ((int)(size_t)&(((CONTEXT *)NULL)->x))
  28 const int i386_mappings[] =
  29 {
  30   context_offset (Eax),
  31   context_offset (Ecx),
  32   context_offset (Edx),
  33   context_offset (Ebx),
  34   context_offset (Esp),
  35   context_offset (Ebp),
  36   context_offset (Esi),
  37   context_offset (Edi),
  38   context_offset (Eip),
  39   context_offset (EFlags),
  40   context_offset (SegCs),
  41   context_offset (SegSs),
  42   context_offset (SegDs),
  43   context_offset (SegEs),
  44   context_offset (SegFs),
  45   context_offset (SegGs),
  46   context_offset (FloatSave.RegisterArea[0 * 10]),
  47   context_offset (FloatSave.RegisterArea[1 * 10]),
  48   context_offset (FloatSave.RegisterArea[2 * 10]),
  49   context_offset (FloatSave.RegisterArea[3 * 10]),
  50   context_offset (FloatSave.RegisterArea[4 * 10]),
  51   context_offset (FloatSave.RegisterArea[5 * 10]),
  52   context_offset (FloatSave.RegisterArea[6 * 10]),
  53   context_offset (FloatSave.RegisterArea[7 * 10]),
  54   context_offset (FloatSave.ControlWord),
  55   context_offset (FloatSave.StatusWord),
  56   context_offset (FloatSave.TagWord),
  57   context_offset (FloatSave.ErrorSelector),
  58   context_offset (FloatSave.ErrorOffset),
  59   context_offset (FloatSave.DataSelector),
  60   context_offset (FloatSave.DataOffset),
  61   context_offset (FloatSave.ErrorSelector)
  62   /* XMM0-7 */ ,
  63   context_offset (ExtendedRegisters[10*16]),
  64   context_offset (ExtendedRegisters[11*16]),
  65   context_offset (ExtendedRegisters[12*16]),
  66   context_offset (ExtendedRegisters[13*16]),
  67   context_offset (ExtendedRegisters[14*16]),
  68   context_offset (ExtendedRegisters[15*16]),
  69   context_offset (ExtendedRegisters[16*16]),
  70   context_offset (ExtendedRegisters[17*16]),
  71   /* MXCSR */
  72   context_offset (ExtendedRegisters[24])
  73 };
  74 #undef context_offset
  75 #undef CONTEXT
  76
  77 /* segment_register_p_ftype implementation for x86.  */
  78
  79 int
  80 i386_windows_segment_register_p (int regnum)
  81 {
  82   return regnum >= I386_CS_REGNUM && regnum <= I386_GS_REGNUM;
  83 }
  84
  85 void _initialize_i386_windows_nat ();
  86 void
  87 _initialize_i386_windows_nat ()
  88 {
  89 #ifndef __x86_64__
  90   x86_set_debug_register_length (4);
  91 #endif
  92 }