1 | /* Support for the generic parts of PE/PEI; common header information.
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2 | Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
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3 | Free Software Foundation, Inc.
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4 | Written by Cygnus Solutions.
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5 |
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6 | This file is part of BFD, the Binary File Descriptor library.
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7 |
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8 | This program is free software; you can redistribute it and/or modify
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9 | it under the terms of the GNU General Public License as published by
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10 | the Free Software Foundation; either version 2 of the License, or
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11 | (at your option) any later version.
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12 |
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13 | This program is distributed in the hope that it will be useful,
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14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 | GNU General Public License for more details.
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17 |
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18 | You should have received a copy of the GNU General Public License
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19 | along with this program; if not, write to the Free Software
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20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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21 |
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22 | /* Most of this hacked by Steve Chamberlain,
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23 | sac@cygnus.com
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24 |
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25 | PE/PEI rearrangement (and code added): Donn Terry
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26 | Softway Systems, Inc. */
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27 |
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28 | /* Hey look, some documentation [and in a place you expect to find it]!
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29 |
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30 | The main reference for the pei format is "Microsoft Portable Executable
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31 | and Common Object File Format Specification 4.1". Get it if you need to
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32 | do some serious hacking on this code.
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33 |
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34 | Another reference:
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35 | "Peering Inside the PE: A Tour of the Win32 Portable Executable
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36 | File Format", MSJ 1994, Volume 9.
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37 |
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38 | The *sole* difference between the pe format and the pei format is that the
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39 | latter has an MSDOS 2.0 .exe header on the front that prints the message
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40 | "This app must be run under Windows." (or some such).
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41 | (FIXME: Whether that statement is *really* true or not is unknown.
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42 | Are there more subtle differences between pe and pei formats?
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43 | For now assume there aren't. If you find one, then for God sakes
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44 | document it here!)
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45 |
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46 | The Microsoft docs use the word "image" instead of "executable" because
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47 | the former can also refer to a DLL (shared library). Confusion can arise
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48 | because the `i' in `pei' also refers to "image". The `pe' format can
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49 | also create images (i.e. executables), it's just that to run on a win32
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50 | system you need to use the pei format.
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51 |
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52 | FIXME: Please add more docs here so the next poor fool that has to hack
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53 | on this code has a chance of getting something accomplished without
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54 | wasting too much time. */
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55 |
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56 | #ifndef GET_FCN_LNNOPTR
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57 | #define GET_FCN_LNNOPTR(abfd, ext) \
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58 | H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
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59 | #endif
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60 |
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61 | #ifndef GET_FCN_ENDNDX
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62 | #define GET_FCN_ENDNDX(abfd, ext) \
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63 | H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx)
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64 | #endif
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65 |
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66 | #ifndef PUT_FCN_LNNOPTR
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67 | #define PUT_FCN_LNNOPTR(abfd, in, ext) \
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68 | H_PUT_32(abfd, in, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
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69 | #endif
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70 | #ifndef PUT_FCN_ENDNDX
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71 | #define PUT_FCN_ENDNDX(abfd, in, ext) \
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72 | H_PUT_32(abfd, in, ext->x_sym.x_fcnary.x_fcn.x_endndx)
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73 | #endif
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74 | #ifndef GET_LNSZ_LNNO
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75 | #define GET_LNSZ_LNNO(abfd, ext) \
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76 | H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno)
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77 | #endif
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78 | #ifndef GET_LNSZ_SIZE
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79 | #define GET_LNSZ_SIZE(abfd, ext) \
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80 | H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size)
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81 | #endif
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82 | #ifndef PUT_LNSZ_LNNO
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83 | #define PUT_LNSZ_LNNO(abfd, in, ext) \
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84 | H_PUT_16(abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno)
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85 | #endif
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86 | #ifndef PUT_LNSZ_SIZE
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87 | #define PUT_LNSZ_SIZE(abfd, in, ext) \
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88 | H_PUT_16(abfd, in, ext->x_sym.x_misc.x_lnsz.x_size)
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89 | #endif
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90 | #ifndef GET_SCN_SCNLEN
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91 | #define GET_SCN_SCNLEN(abfd, ext) \
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92 | H_GET_32 (abfd, ext->x_scn.x_scnlen)
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93 | #endif
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94 | #ifndef GET_SCN_NRELOC
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95 | #define GET_SCN_NRELOC(abfd, ext) \
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96 | H_GET_16 (abfd, ext->x_scn.x_nreloc)
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97 | #endif
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98 | #ifndef GET_SCN_NLINNO
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99 | #define GET_SCN_NLINNO(abfd, ext) \
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100 | H_GET_16 (abfd, ext->x_scn.x_nlinno)
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101 | #endif
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102 | #ifndef PUT_SCN_SCNLEN
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103 | #define PUT_SCN_SCNLEN(abfd, in, ext) \
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104 | H_PUT_32(abfd, in, ext->x_scn.x_scnlen)
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105 | #endif
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106 | #ifndef PUT_SCN_NRELOC
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107 | #define PUT_SCN_NRELOC(abfd, in, ext) \
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108 | H_PUT_16(abfd, in, ext->x_scn.x_nreloc)
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109 | #endif
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110 | #ifndef PUT_SCN_NLINNO
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111 | #define PUT_SCN_NLINNO(abfd, in, ext) \
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112 | H_PUT_16(abfd,in, ext->x_scn.x_nlinno)
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113 | #endif
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114 | #ifndef GET_LINENO_LNNO
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115 | #define GET_LINENO_LNNO(abfd, ext) \
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116 | H_GET_16 (abfd, ext->l_lnno);
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117 | #endif
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118 | #ifndef PUT_LINENO_LNNO
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119 | #define PUT_LINENO_LNNO(abfd, val, ext) \
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120 | H_PUT_16(abfd,val, ext->l_lnno);
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121 | #endif
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122 |
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123 | /* The f_symptr field in the filehdr is sometimes 64 bits. */
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124 | #ifndef GET_FILEHDR_SYMPTR
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125 | #define GET_FILEHDR_SYMPTR H_GET_32
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126 | #endif
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127 | #ifndef PUT_FILEHDR_SYMPTR
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128 | #define PUT_FILEHDR_SYMPTR H_PUT_32
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129 | #endif
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130 |
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131 | /* Some fields in the aouthdr are sometimes 64 bits. */
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132 | #ifndef GET_AOUTHDR_TSIZE
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133 | #define GET_AOUTHDR_TSIZE H_GET_32
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134 | #endif
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135 | #ifndef PUT_AOUTHDR_TSIZE
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136 | #define PUT_AOUTHDR_TSIZE H_PUT_32
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137 | #endif
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138 | #ifndef GET_AOUTHDR_DSIZE
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139 | #define GET_AOUTHDR_DSIZE H_GET_32
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140 | #endif
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141 | #ifndef PUT_AOUTHDR_DSIZE
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142 | #define PUT_AOUTHDR_DSIZE H_PUT_32
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143 | #endif
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144 | #ifndef GET_AOUTHDR_BSIZE
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145 | #define GET_AOUTHDR_BSIZE H_GET_32
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146 | #endif
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147 | #ifndef PUT_AOUTHDR_BSIZE
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148 | #define PUT_AOUTHDR_BSIZE H_PUT_32
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149 | #endif
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150 | #ifndef GET_AOUTHDR_ENTRY
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151 | #define GET_AOUTHDR_ENTRY H_GET_32
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152 | #endif
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153 | #ifndef PUT_AOUTHDR_ENTRY
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154 | #define PUT_AOUTHDR_ENTRY H_PUT_32
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155 | #endif
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156 | #ifndef GET_AOUTHDR_TEXT_START
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157 | #define GET_AOUTHDR_TEXT_START H_GET_32
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158 | #endif
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159 | #ifndef PUT_AOUTHDR_TEXT_START
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160 | #define PUT_AOUTHDR_TEXT_START H_PUT_32
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161 | #endif
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162 | #ifndef GET_AOUTHDR_DATA_START
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163 | #define GET_AOUTHDR_DATA_START H_GET_32
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164 | #endif
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165 | #ifndef PUT_AOUTHDR_DATA_START
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166 | #define PUT_AOUTHDR_DATA_START H_PUT_32
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167 | #endif
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168 |
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169 | /* Some fields in the scnhdr are sometimes 64 bits. */
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170 | #ifndef GET_SCNHDR_PADDR
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171 | #define GET_SCNHDR_PADDR H_GET_32
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172 | #endif
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173 | #ifndef PUT_SCNHDR_PADDR
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174 | #define PUT_SCNHDR_PADDR H_PUT_32
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175 | #endif
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176 | #ifndef GET_SCNHDR_VADDR
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177 | #define GET_SCNHDR_VADDR H_GET_32
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178 | #endif
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179 | #ifndef PUT_SCNHDR_VADDR
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180 | #define PUT_SCNHDR_VADDR H_PUT_32
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181 | #endif
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182 | #ifndef GET_SCNHDR_SIZE
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183 | #define GET_SCNHDR_SIZE H_GET_32
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184 | #endif
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185 | #ifndef PUT_SCNHDR_SIZE
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186 | #define PUT_SCNHDR_SIZE H_PUT_32
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187 | #endif
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188 | #ifndef GET_SCNHDR_SCNPTR
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189 | #define GET_SCNHDR_SCNPTR H_GET_32
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190 | #endif
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191 | #ifndef PUT_SCNHDR_SCNPTR
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192 | #define PUT_SCNHDR_SCNPTR H_PUT_32
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193 | #endif
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194 | #ifndef GET_SCNHDR_RELPTR
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195 | #define GET_SCNHDR_RELPTR H_GET_32
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196 | #endif
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197 | #ifndef PUT_SCNHDR_RELPTR
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198 | #define PUT_SCNHDR_RELPTR H_PUT_32
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199 | #endif
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200 | #ifndef GET_SCNHDR_LNNOPTR
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201 | #define GET_SCNHDR_LNNOPTR H_GET_32
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202 | #endif
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203 | #ifndef PUT_SCNHDR_LNNOPTR
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204 | #define PUT_SCNHDR_LNNOPTR H_PUT_32
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205 | #endif
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206 |
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207 | #ifdef COFF_WITH_pep
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208 |
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209 | #define GET_OPTHDR_IMAGE_BASE H_GET_64
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210 | #define PUT_OPTHDR_IMAGE_BASE H_PUT_64
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211 | #define GET_OPTHDR_SIZE_OF_STACK_RESERVE H_GET_64
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212 | #define PUT_OPTHDR_SIZE_OF_STACK_RESERVE H_PUT_64
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213 | #define GET_OPTHDR_SIZE_OF_STACK_COMMIT H_GET_64
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214 | #define PUT_OPTHDR_SIZE_OF_STACK_COMMIT H_PUT_64
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215 | #define GET_OPTHDR_SIZE_OF_HEAP_RESERVE H_GET_64
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216 | #define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE H_PUT_64
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217 | #define GET_OPTHDR_SIZE_OF_HEAP_COMMIT H_GET_64
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218 | #define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT H_PUT_64
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219 | #define GET_PDATA_ENTRY bfd_get_64
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220 |
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221 | #define _bfd_XX_bfd_copy_private_bfd_data_common _bfd_pep_bfd_copy_private_bfd_data_common
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222 | #define _bfd_XX_bfd_copy_private_section_data _bfd_pep_bfd_copy_private_section_data
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223 | #define _bfd_XX_get_symbol_info _bfd_pep_get_symbol_info
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224 | #define _bfd_XX_only_swap_filehdr_out _bfd_pep_only_swap_filehdr_out
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225 | #define _bfd_XX_print_private_bfd_data_common _bfd_pep_print_private_bfd_data_common
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226 | #define _bfd_XXi_final_link_postscript _bfd_pepi_final_link_postscript
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227 | #define _bfd_XXi_final_link_postscript _bfd_pepi_final_link_postscript
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228 | #define _bfd_XXi_only_swap_filehdr_out _bfd_pepi_only_swap_filehdr_out
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229 | #define _bfd_XXi_swap_aouthdr_in _bfd_pepi_swap_aouthdr_in
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230 | #define _bfd_XXi_swap_aouthdr_out _bfd_pepi_swap_aouthdr_out
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231 | #define _bfd_XXi_swap_aux_in _bfd_pepi_swap_aux_in
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232 | #define _bfd_XXi_swap_aux_out _bfd_pepi_swap_aux_out
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233 | #define _bfd_XXi_swap_lineno_in _bfd_pepi_swap_lineno_in
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234 | #define _bfd_XXi_swap_lineno_out _bfd_pepi_swap_lineno_out
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235 | #define _bfd_XXi_swap_scnhdr_out _bfd_pepi_swap_scnhdr_out
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236 | #define _bfd_XXi_swap_sym_in _bfd_pepi_swap_sym_in
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237 | #define _bfd_XXi_swap_sym_out _bfd_pepi_swap_sym_out
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238 |
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239 | #else /* !COFF_WITH_pep */
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240 |
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241 | #define GET_OPTHDR_IMAGE_BASE H_GET_32
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242 | #define PUT_OPTHDR_IMAGE_BASE H_PUT_32
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243 | #define GET_OPTHDR_SIZE_OF_STACK_RESERVE H_GET_32
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244 | #define PUT_OPTHDR_SIZE_OF_STACK_RESERVE H_PUT_32
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245 | #define GET_OPTHDR_SIZE_OF_STACK_COMMIT H_GET_32
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246 | #define PUT_OPTHDR_SIZE_OF_STACK_COMMIT H_PUT_32
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247 | #define GET_OPTHDR_SIZE_OF_HEAP_RESERVE H_GET_32
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248 | #define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE H_PUT_32
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249 | #define GET_OPTHDR_SIZE_OF_HEAP_COMMIT H_GET_32
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250 | #define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT H_PUT_32
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251 | #define GET_PDATA_ENTRY bfd_get_32
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252 |
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253 | #define _bfd_XX_bfd_copy_private_bfd_data_common _bfd_pe_bfd_copy_private_bfd_data_common
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254 | #define _bfd_XX_bfd_copy_private_section_data _bfd_pe_bfd_copy_private_section_data
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255 | #define _bfd_XX_get_symbol_info _bfd_pe_get_symbol_info
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256 | #define _bfd_XX_only_swap_filehdr_out _bfd_pe_only_swap_filehdr_out
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257 | #define _bfd_XX_print_private_bfd_data_common _bfd_pe_print_private_bfd_data_common
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258 | #define _bfd_XXi_final_link_postscript _bfd_pei_final_link_postscript
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259 | #define _bfd_XXi_final_link_postscript _bfd_pei_final_link_postscript
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260 | #define _bfd_XXi_only_swap_filehdr_out _bfd_pei_only_swap_filehdr_out
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261 | #define _bfd_XXi_swap_aouthdr_in _bfd_pei_swap_aouthdr_in
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262 | #define _bfd_XXi_swap_aouthdr_out _bfd_pei_swap_aouthdr_out
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263 | #define _bfd_XXi_swap_aux_in _bfd_pei_swap_aux_in
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264 | #define _bfd_XXi_swap_aux_out _bfd_pei_swap_aux_out
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265 | #define _bfd_XXi_swap_lineno_in _bfd_pei_swap_lineno_in
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266 | #define _bfd_XXi_swap_lineno_out _bfd_pei_swap_lineno_out
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267 | #define _bfd_XXi_swap_scnhdr_out _bfd_pei_swap_scnhdr_out
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268 | #define _bfd_XXi_swap_sym_in _bfd_pei_swap_sym_in
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269 | #define _bfd_XXi_swap_sym_out _bfd_pei_swap_sym_out
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270 |
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271 | #endif /* !COFF_WITH_pep */
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272 |
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273 | /* These functions are architecture dependent, and are in peicode.h:
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274 | coff_swap_reloc_in
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275 | int coff_swap_reloc_out
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276 | coff_swap_filehdr_in
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277 | coff_swap_scnhdr_in
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278 | pe_mkobject
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279 | pe_mkobject_hook */
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280 |
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281 | /* The functions described below are common across all PE/PEI
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282 | implementations architecture types, and actually appear in
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283 | peigen.c. */
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284 |
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285 | void _bfd_XXi_swap_sym_in PARAMS ((bfd*, PTR, PTR));
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286 | #define coff_swap_sym_in _bfd_XXi_swap_sym_in
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287 |
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288 | unsigned int _bfd_XXi_swap_sym_out PARAMS ((bfd*, PTR, PTR));
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289 | #define coff_swap_sym_out _bfd_XXi_swap_sym_out
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290 |
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291 | void _bfd_XXi_swap_aux_in PARAMS ((bfd *, PTR, int, int, int, int, PTR));
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292 | #define coff_swap_aux_in _bfd_XXi_swap_aux_in
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293 |
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294 | unsigned int _bfd_XXi_swap_aux_out \
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295 | PARAMS ((bfd *, PTR, int, int, int, int, PTR));
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296 | #define coff_swap_aux_out _bfd_XXi_swap_aux_out
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297 |
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298 | void _bfd_XXi_swap_lineno_in PARAMS ((bfd*, PTR, PTR));
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299 | #define coff_swap_lineno_in _bfd_XXi_swap_lineno_in
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300 |
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301 | unsigned int _bfd_XXi_swap_lineno_out PARAMS ((bfd*, PTR, PTR));
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302 | #define coff_swap_lineno_out _bfd_XXi_swap_lineno_out
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303 |
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304 | void _bfd_XXi_swap_aouthdr_in PARAMS ((bfd*, PTR, PTR));
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305 | #define coff_swap_aouthdr_in _bfd_XXi_swap_aouthdr_in
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306 |
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307 | unsigned int _bfd_XXi_swap_aouthdr_out PARAMS ((bfd *, PTR, PTR));
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308 | #define coff_swap_aouthdr_out _bfd_XXi_swap_aouthdr_out
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309 |
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310 | unsigned int _bfd_XXi_swap_scnhdr_out PARAMS ((bfd *, PTR, PTR));
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311 | #define coff_swap_scnhdr_out _bfd_XXi_swap_scnhdr_out
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312 |
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313 | bfd_boolean _bfd_XX_print_private_bfd_data_common PARAMS ((bfd *, PTR));
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314 |
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315 | bfd_boolean _bfd_XX_bfd_copy_private_bfd_data_common PARAMS ((bfd *, bfd *));
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316 |
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317 | void _bfd_XX_get_symbol_info PARAMS ((bfd *, asymbol *, symbol_info *));
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318 |
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319 | bfd_boolean _bfd_XXi_final_link_postscript
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320 | PARAMS ((bfd *, struct coff_final_link_info *));
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321 |
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322 | #ifndef coff_final_link_postscript
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323 | #define coff_final_link_postscript _bfd_XXi_final_link_postscript
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324 | #endif
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325 | /* The following are needed only for ONE of pe or pei, but don't
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326 | otherwise vary; peicode.h fixes up ifdefs but we provide the
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327 | prototype. */
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328 |
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329 | unsigned int _bfd_XX_only_swap_filehdr_out PARAMS ((bfd*, PTR, PTR));
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330 | unsigned int _bfd_XXi_only_swap_filehdr_out PARAMS ((bfd*, PTR, PTR));
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331 | bfd_boolean _bfd_XX_bfd_copy_private_section_data
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332 | PARAMS ((bfd *, asection *, bfd *, asection *));
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333 |
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334 | /* Macro: Returns true if the bfd is a PE executable as opposed to a PE object file. */
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335 | #define bfd_pe_executable_p(abfd) (strncmp ((abfd)->xvec->name, "pei-", 4) == 0)
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