1 | ; $Id: bs3-first-common.mac 66054 2017-03-10 20:59:51Z vboxsync $
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2 | ;; @file
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3 | ; BS3Kit - First Object, common stuff.
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4 | ;
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5 |
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6 | ;
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7 | ; Copyright (C) 2007-2016 Oracle Corporation
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8 | ;
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9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
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10 | ; available from http://www.virtualbox.org. This file is free software;
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11 | ; you can redistribute it and/or modify it under the terms of the GNU
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12 | ; General Public License (GPL) as published by the Free Software
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13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | ;
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17 | ; The contents of this file may alternatively be used under the terms
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18 | ; of the Common Development and Distribution License Version 1.0
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19 | ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | ; VirtualBox OSE distribution, in which case the provisions of the
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21 | ; CDDL are applicable instead of those of the GPL.
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22 | ;
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23 | ; You may elect to license modified versions of this file under the
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24 | ; terms and conditions of either the GPL or the CDDL or both.
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25 | ;
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26 |
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27 |
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28 | %define BS3_BEGIN_TEXT16_WITHOUT_GROUP
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29 | %define BS3_BEGIN_DATA16_WITHOUT_GROUP
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30 | %define BS3_BEGIN_RMTEXT16_WITHOUT_GROUP
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31 | %define BS3_BEGIN_X0TEXT16_WITHOUT_GROUP
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32 | %define BS3_BEGIN_X1TEXT16_WITHOUT_GROUP
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33 |
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34 | %include "bs3kit.mac"
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35 |
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36 |
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37 | ;
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38 | ;
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39 | ; Define all the segments and their grouping, just to get that right once at
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40 | ; the start of everything.
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41 | ;
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42 | ;
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43 |
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44 | ;
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45 | ; 16-bit text
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46 | ;
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47 | %ifndef BS3_IS_DOS_EXE
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48 | BS3_BEGIN_TEXT16
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49 | %else
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50 | section BEGTEXT align=2 CLASS=BS3CLASS16CODE PUBLIC USE16
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51 | BS3_BEGIN_TEXT16
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52 | section BEGTEXT
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53 | %endif
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54 | BS3_GLOBAL_DATA Bs3Text16_StartOfSegment, 0
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55 |
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56 | ; Entry point with eye-catcher.
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57 | GLOBALNAME start
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58 | global __ImageBase ; for MS compiler - must be first!
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59 | __ImageBase:
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60 | global ___begtext ; for DOS EXEs (causes harmless duplicate symbol warning)
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61 | ___begtext:
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62 | %ifndef BS3_IS_DOS_EXE
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63 | jmp .after_eye_catcher
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64 | %else
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65 | int3
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66 | jmp __ImageBase
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67 | %endif
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68 | db 10,13,'eye-catcher: BS3TEXT16',10,13
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69 | BS3_BEGIN_TEXT16
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70 | .after_eye_catcher:
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71 |
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72 | section _TEXT align=2 CLASS=BS3CLASS16CODE PUBLIC USE16
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73 | section BS3TEXT16_NEARSTUBS align=1 CLASS=BS3CLASS16CODE PUBLIC USE16
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74 | section BS3TEXT16_FARSTUBS align=1 CLASS=BS3CLASS16CODE PUBLIC USE16
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75 | section BS3TEXT16_END align=1 CLASS=BS3CLASS16CODE PUBLIC USE16
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76 |
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77 | BS3_GLOBAL_DATA Bs3Text16_EndOfSegment, 0
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78 |
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79 | %ifndef BS3_IS_DOS_EXE
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80 | GROUP CGROUP16 BS3TEXT16 _TEXT BS3TEXT16_NEARSTUBS BS3TEXT16_FARSTUBS BS3TEXT16_END
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81 | %else
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82 | GROUP CGROUP16 BEGTEXT BS3TEXT16 _TEXT BS3TEXT16_NEARSTUBS BS3TEXT16_FARSTUBS BS3TEXT16_END
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83 | %endif
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84 |
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85 |
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86 | ;
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87 | ; 16-bit data
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88 | ;
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89 | BS3_BEGIN_DATA16
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90 | BS3_GLOBAL_DATA Bs3Data16_StartOfSegment, 0
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91 | db 10,13,'eye-catcher: BS3DATA16',10,13
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92 |
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93 | ALIGNDATA(16)
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94 | BS3_GLOBAL_DATA Bs3Data16_Size, 4
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95 | dd BS3_DATA_NM(Bs3Data16_EndOfSegment) wrt BS3KIT_GRPNM_DATA16
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96 | BS3_GLOBAL_DATA Bs3Data16Thru64Text32And64_TotalSize, 4
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97 | dd BS3_DATA_NM(Bs3Data64_EndOfSegment) wrt BS3KIT_GRPNM_DATA16
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98 | BS3_GLOBAL_DATA Bs3TotalImageSize, 4
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99 | dd BS3_DATA_NM(Bs3Text64_EndOfSegment) wrt CGROUP16 ; ASSUMES TEXT64 is last.
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100 |
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101 | BS3_GLOBAL_DATA Bs3Text16_Size, 2
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102 | dw BS3_DATA_NM(Bs3Text16_EndOfSegment) wrt CGROUP16
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103 | BS3_GLOBAL_DATA Bs3RmText16_Size, 2
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104 | dw BS3_DATA_NM(Bs3RmText16_EndOfSegment) wrt BS3GROUPRMTEXT16
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105 | BS3_GLOBAL_DATA Bs3X0Text16_Size, 2
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106 | dw BS3_DATA_NM(Bs3X0Text16_EndOfSegment) wrt BS3GROUPX0TEXT16
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107 | BS3_GLOBAL_DATA Bs3X1Text16_Size, 2
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108 | dw BS3_DATA_NM(Bs3X1Text16_EndOfSegment) wrt BS3GROUPX1TEXT16
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109 |
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110 | BS3_GLOBAL_DATA Bs3RmText16_FlatAddr, 4
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111 | dd BS3_DATA_NM(Bs3RmText16_StartOfSegment) wrt BS3FLAT
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112 | BS3_GLOBAL_DATA Bs3X0Text16_FlatAddr, 4
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113 | dd BS3_DATA_NM(Bs3X0Text16_StartOfSegment) wrt BS3FLAT
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114 | BS3_GLOBAL_DATA Bs3X1Text16_FlatAddr, 4
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115 | dd BS3_DATA_NM(Bs3X1Text16_StartOfSegment) wrt BS3FLAT
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116 |
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117 | section BS3DATA16CONST align=2 CLASS=BS3KIT_CLASS_DATA16 PUBLIC USE16
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118 | section BS3DATA16CONST2 align=2 CLASS=BS3KIT_CLASS_DATA16 PUBLIC USE16
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119 | section BS3DATA16_DATA align=2 CLASS=BS3KIT_CLASS_DATA16 PUBLIC USE16
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120 | %ifdef BS3_IS_DOS_EXE
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121 | section _NULL align=16 CLASS=BEGDATA PUBLIC USE16
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122 | section _AFTERNULL align=2 CLASS=BEGDATA PUBLIC USE16
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123 | %endif
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124 | section CONST align=2 CLASS=DATA PUBLIC USE16
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125 | section CONST2 align=2 CLASS=DATA PUBLIC USE16
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126 | section _DATA align=2 CLASS=DATA PUBLIC USE16
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127 | %ifdef BS3_IS_DOS_EXE
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128 | section XIB align=1 CLASS=DATA PUBLIC USE16
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129 | section XI align=1 CLASS=DATA PUBLIC USE16
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130 | section XIE align=1 CLASS=DATA PUBLIC USE16
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131 | section YIB align=1 CLASS=DATA PUBLIC USE16
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132 | section YI align=1 CLASS=DATA PUBLIC USE16
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133 | section YIE align=1 CLASS=DATA PUBLIC USE16
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134 | %endif
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135 | section STRINGS align=2 CLASS=DATA PUBLIC USE16
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136 | section DATA align=2 CLASS=DATA PUBLIC USE16
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137 | section _BSS align=2 CLASS=BS3KIT_CLASS_BSS16 PUBLIC USE16
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138 | section BSS align=2 CLASS=BS3KIT_CLASS_BSS16 PUBLIC USE16
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139 | %ifdef BS3_IS_DOS_EXE
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140 | section STACK align=16 CLASS=STACK STACK USE16
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141 | %endif
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142 | section BS3DATA16_END align=2 CLASS=BS3KIT_CLASS_BSS16 PUBLIC USE16
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143 |
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144 | BS3_GLOBAL_DATA Bs3Data16_EndOfSegment, 0
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145 |
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146 | %ifndef BS3_IS_DOS_EXE
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147 | GROUP BS3KIT_GRPNM_DATA16 BS3DATA16 BS3DATA16_DATA _DATA DATA BS3DATA16CONST CONST BS3DATA16CONST2 CONST2 STRINGS _BSS BSS BS3DATA16_END
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148 | %else
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149 | GROUP BS3KIT_GRPNM_DATA16 \
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150 | _NULL _AFTERNULL \
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151 | CONST BS3DATA16CONST CONST2 BS3DATA16CONST2 _DATA XIB XI XIE YIB YI YIE STRINGS DATA BS3DATA16 BS3DATA16_DATA \
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152 | _BSS BSS BS3DATA16_END \
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153 | STACK
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154 | %endif
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155 |
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156 | ;
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157 | ; 16-bit real-mode text
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158 | ;
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159 | section BS3RMTEXT16_START align=16 CLASS=BS3CLASS16RMCODE PUBLIC USE16
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160 | BS3_GLOBAL_DATA Bs3RmText16_StartOfSegment, 0
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161 | db 10,13,'eye-catcher: BS3RMTEXT16',10,13
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162 | BS3_BEGIN_RMTEXT16
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163 | section BS3RMTEXT16_END align=1 CLASS=BS3CLASS16RMCODE PUBLIC USE16
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164 | BS3_GLOBAL_DATA Bs3RmText16_EndOfSegment, 0
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165 | GROUP BS3GROUPRMTEXT16 BS3RMTEXT16_START BS3RMTEXT16 BS3RMTEXT16_END
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166 |
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167 |
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168 | ;
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169 | ; 16-bit extra text segment #0.
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170 | ;
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171 | section BS3X0TEXT16_START align=16 CLASS=BS3CLASS16X0CODE PUBLIC USE16
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172 | BS3_GLOBAL_DATA Bs3X0Text16_StartOfSegment, 0
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173 | db 10,13,'eye-catcher: BS3X0TEXT16',10,13
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174 | BS3_BEGIN_X0TEXT16 4
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175 | section BS3X0TEXT16_END align=16 CLASS=BS3CLASS16X0CODE PUBLIC USE16
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176 | BS3_GLOBAL_DATA Bs3X0Text16_EndOfSegment, 0
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177 | GROUP BS3GROUPX0TEXT16 BS3X0TEXT16_START BS3X0TEXT16 BS3X0TEXT16_END
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178 |
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179 |
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180 | ;
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181 | ; 16-bit extra text segment #1.
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182 | ;
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183 | section BS3X1TEXT16_START align=16 CLASS=BS3CLASS16X1CODE PUBLIC USE16
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184 | BS3_GLOBAL_DATA Bs3X1Text16_StartOfSegment, 0
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185 | db 10,13,'eye-catcher: BS3X1TEXT16',10,13
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186 | BS3_BEGIN_X1TEXT16 4
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187 | section BS3X1TEXT16_END align=16 CLASS=BS3CLASS16X1CODE PUBLIC USE16
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188 | BS3_GLOBAL_DATA Bs3X1Text16_EndOfSegment, 0
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189 | GROUP BS3GROUPX1TEXT16 BS3X1TEXT16_START BS3X1TEXT16 BS3X1TEXT16_END
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190 |
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191 |
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192 | ;
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193 | ; 32-bit text
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194 | ;
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195 | BS3_BEGIN_TEXT32
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196 | BS3_GLOBAL_DATA Bs3Text32_StartOfSegment, 0
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197 | db 10,13,'eye-catcher: BS3TEXT32',10,13
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198 | section BS3TEXT32_END align=1 CLASS=BS3CLASS32CODE PUBLIC USE32 FLAT
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199 | BS3_GLOBAL_DATA Bs3Text32_EndOfSegment, 0
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200 |
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201 |
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202 | ;
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203 | ; This is a hack to separate the 32-bit and 64-bit text segments when linking,
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204 | ; such that they don't share the same base frame because they're both assigned
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205 | ; to the AUTO group by the linker.
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206 | ;
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207 | section BS3SEPARATE32AND64BITCODE align=16 CLASS=BS3CLASSSEPARATE32AND64BITCODE PUBLIC USE16
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208 | BS3_GLOBAL_DATA Bs3Separate32And64BitCode_StartOfSegment, 0
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209 | db 10,13,'eye-catcher: 32-64 wedge',10,13
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210 | section BS3SEPARATE32AND64BITCODE_END align=16 CLASS=BS3CLASSSEPARATE32AND64BITCODE PUBLIC USE16
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211 | BS3_GLOBAL_DATA Bs3Separate32And64BitCode_EndOfSegment, 0
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212 | GROUP BS3SEPARATE32AND64BITCODEGROUP BS3SEPARATE32AND64BITCODE BS3SEPARATE32AND64BITCODE_END
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213 |
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214 |
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215 | ;
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216 | ; 64-bit text
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217 | ;
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218 | BS3_BEGIN_TEXT64
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219 | BS3_GLOBAL_DATA Bs3Text64_StartOfSegment, 0
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220 | db 10,13,'eye-catcher: BS3TEXT64',10,13
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221 | section BS3TEXT64_END align=1 CLASS=BS3CLASS64CODE PUBLIC USE32 FLAT
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222 | BS3_GLOBAL_DATA Bs3Text64_EndOfSegment, 0
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223 |
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224 |
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225 | ;
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226 | ; FAR_DATA segment in DOS EXEs should be near the other FAR_DATA class segments.
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227 | ;
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228 | %ifdef BS3_IS_DOS_EXE
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229 | section FAR_DATA align=1 CLASS=FAR_DATA PUBLIC USE16
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230 | %endif
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231 |
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232 | ;
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233 | ; 32-bit data
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234 | ;
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235 | BS3_BEGIN_DATA32
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236 | BS3_GLOBAL_DATA Bs3Data32_StartOfSegment, 0
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237 | db 10,13,'eye-catcher: BS3DATA32',10,13
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238 | section BS3DATA32CONST align=16 CLASS=FAR_DATA PUBLIC USE32
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239 | section BS3DATA32CONST2 align=16 CLASS=FAR_DATA PUBLIC USE32
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240 | section BS3DATA32_DATA align=16 CLASS=FAR_DATA PUBLIC USE32
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241 | section BS3DATA32_BSS align=16 CLASS=FAR_DATA PUBLIC USE32
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242 | section BS3DATA32_END align=16 CLASS=FAR_DATA PUBLIC USE32
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243 | BS3_GLOBAL_DATA Bs3Data32_EndOfSegment, 0
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244 | GROUP BS3DATA32_GROUP BS3DATA32 BS3DATA32_DATA BS3DATA32CONST BS3DATA32CONST2 BS3DATA32_BSS BS3DATA32_END
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245 |
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246 | ;
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247 | ; 64-bit data
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248 | ;
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249 | BS3_BEGIN_DATA64
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250 | BS3_GLOBAL_DATA Bs3Data64_StartOfSegment, 0
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251 | db 10,13,'eye-catcher: BS3DATA64',10,13
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252 | section BS3DATA64CONST align=16 CLASS=FAR_DATA PUBLIC USE32
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253 | section BS3DATA64_BSS align=16 CLASS=FAR_DATA PUBLIC USE32
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254 | section BS3DATA64_END align=16 CLASS=FAR_DATA PUBLIC USE32
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255 | BS3_GLOBAL_DATA Bs3Data64_EndOfSegment, 0
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256 | GROUP BS3DATA64_GROUP BS3DATA64 BS3DATA64CONST BS3DATA64_BSS BS3DATA64_END
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257 |
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258 |
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259 | ;
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260 | ; 16-bit accessible system data.
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261 | ; No need to do anything here.
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262 | ;
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263 | BS3_BEGIN_SYSTEM16
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264 |
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265 |
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266 | ;
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267 | ; Switch back to the 16-bit code segment and the startup code.
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268 | ;
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269 | BS3_BEGIN_TEXT16
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270 | BS3_GLOBAL_NAME_EX Bs3KitEntryPoint, function, 0
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271 |
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