bfd/cpu-i386.c

   1 /* BFD support for the Intel 386 architecture.
   2    Copyright 1992, 1994, 1995, 1996, 1998, 2000, 2001, 2002, 2004, 2005,
   3    2007, 2009, 2010, 2011
   4    Free Software Foundation, Inc.
   5
   6    This file is part of BFD, the Binary File Descriptor library.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22
  23 #include "sysdep.h"
  24 #include "bfd.h"
  25 #include "libbfd.h"
  26
  27 static const bfd_arch_info_type *
  28 bfd_i386_compatible (const bfd_arch_info_type *a,
  29                      const bfd_arch_info_type *b)
  30 {
  31   const bfd_arch_info_type *compat = bfd_default_compatible (a, b);
  32
  33   /* Don't allow mixing x64_32 with x86_64.  */
  34   if (compat && a->bits_per_address != b->bits_per_address)
  35     compat = NULL;
  36
  37   return compat;
  38 }
  39
  40 static const bfd_arch_info_type bfd_x64_32_arch_intel_syntax =
  41 {
  42   64, /* 64 bits in a word */
  43   32, /* 32 bits in an address */
  44   8,  /* 8 bits in a byte */
  45   bfd_arch_i386,
  46   bfd_mach_x64_32_intel_syntax,
  47   "i386:intel",
  48   "i386:x64-32:intel",
  49   3,
  50   FALSE,
  51   bfd_i386_compatible,
  52   bfd_default_scan,
  53   0
  54 };
  55
  56 static const bfd_arch_info_type bfd_x86_64_arch_intel_syntax =
  57 {
  58   64, /* 64 bits in a word */
  59   64, /* 64 bits in an address */
  60   8,  /* 8 bits in a byte */
  61   bfd_arch_i386,
  62   bfd_mach_x86_64_intel_syntax,
  63   "i386:intel",
  64   "i386:x86-64:intel",
  65   3,
  66   FALSE,
  67   bfd_i386_compatible,
  68   bfd_default_scan,
  69   &bfd_x64_32_arch_intel_syntax,
  70 };
  71
  72 static const bfd_arch_info_type bfd_i386_arch_intel_syntax =
  73 {
  74   32,   /* 32 bits in a word */
  75   32,   /* 32 bits in an address */
  76   8,    /* 8 bits in a byte */
  77   bfd_arch_i386,
  78   bfd_mach_i386_i386_intel_syntax,
  79   "i386:intel",
  80   "i386:intel",
  81   3,
  82   TRUE,
  83   bfd_i386_compatible,
  84   bfd_default_scan,
  85   &bfd_x86_64_arch_intel_syntax
  86 };
  87
  88 static const bfd_arch_info_type i8086_arch =
  89 {
  90   32,   /* 32 bits in a word */
  91   32,   /* 32 bits in an address (well, not really) */
  92   8,    /* 8 bits in a byte */
  93   bfd_arch_i386,
  94   bfd_mach_i386_i8086,
  95   "i8086",
  96   "i8086",
  97   3,
  98   FALSE,
  99   bfd_i386_compatible,
 100   bfd_default_scan,
 101   &bfd_i386_arch_intel_syntax
 102 };
 103
 104 static const bfd_arch_info_type bfd_x64_32_arch =
 105 {
 106   64, /* 64 bits in a word */
 107   32, /* 32 bits in an address */
 108   8,  /* 8 bits in a byte */
 109   bfd_arch_i386,
 110   bfd_mach_x64_32,
 111   "i386",
 112   "i386:x64-32",
 113   3,
 114   FALSE,
 115   bfd_i386_compatible,
 116   bfd_default_scan,
 117   &i8086_arch
 118 };
 119
 120 static const bfd_arch_info_type bfd_x86_64_arch =
 121 {
 122   64, /* 64 bits in a word */
 123   64, /* 64 bits in an address */
 124   8,  /* 8 bits in a byte */
 125   bfd_arch_i386,
 126   bfd_mach_x86_64,
 127   "i386",
 128   "i386:x86-64",
 129   3,
 130   FALSE,
 131   bfd_i386_compatible,
 132   bfd_default_scan,
 133   &bfd_x64_32_arch
 134 };
 135
 136 const bfd_arch_info_type bfd_i386_arch =
 137 {
 138   32,   /* 32 bits in a word */
 139   32,   /* 32 bits in an address */
 140   8,    /* 8 bits in a byte */
 141   bfd_arch_i386,
 142   bfd_mach_i386_i386,
 143   "i386",
 144   "i386",
 145   3,
 146   TRUE,
 147   bfd_i386_compatible,
 148   bfd_default_scan,
 149   &bfd_x86_64_arch
 150 };