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1 /* a.out.h |
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2 |
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3 Copyright 1997, 1998, 1999, 2001 Red Hat, Inc. |
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4 |
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5 This file is part of Cygwin. |
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6 |
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7 This software is a copyrighted work licensed under the terms of the |
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8 Cygwin license. Please consult the file "CYGWIN_LICENSE" for |
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9 details. */ |
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10 |
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11 #ifndef _A_OUT_H_ |
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12 #define _A_OUT_H_ |
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13 |
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14 #ifdef __cplusplus |
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15 extern "C" { |
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16 #endif |
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17 #define COFF_IMAGE_WITH_PE |
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18 #define COFF_LONG_SECTION_NAMES |
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19 |
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20 /*** coff information for Intel 386/486. */ |
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21 |
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22 |
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23 /********************** FILE HEADER **********************/ |
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24 |
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25 struct external_filehdr { |
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26 short f_magic; /* magic number */ |
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27 short f_nscns; /* number of sections */ |
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28 host_ulong f_timdat; /* time & date stamp */ |
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29 host_ulong f_symptr; /* file pointer to symtab */ |
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30 host_ulong f_nsyms; /* number of symtab entries */ |
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31 short f_opthdr; /* sizeof(optional hdr) */ |
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32 short f_flags; /* flags */ |
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33 }; |
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34 |
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35 /* Bits for f_flags: |
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36 * F_RELFLG relocation info stripped from file |
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37 * F_EXEC file is executable (no unresolved external references) |
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38 * F_LNNO line numbers stripped from file |
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39 * F_LSYMS local symbols stripped from file |
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40 * F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax) |
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41 */ |
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42 |
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43 #define F_RELFLG (0x0001) |
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44 #define F_EXEC (0x0002) |
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45 #define F_LNNO (0x0004) |
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46 #define F_LSYMS (0x0008) |
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47 |
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48 |
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49 |
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50 #define I386MAGIC 0x14c |
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51 #define I386PTXMAGIC 0x154 |
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52 #define I386AIXMAGIC 0x175 |
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53 |
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54 /* This is Lynx's all-platform magic number for executables. */ |
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55 |
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56 #define LYNXCOFFMAGIC 0415 |
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57 |
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58 #define I386BADMAG(x) (((x).f_magic != I386MAGIC) \ |
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59 && (x).f_magic != I386AIXMAGIC \ |
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60 && (x).f_magic != I386PTXMAGIC \ |
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61 && (x).f_magic != LYNXCOFFMAGIC) |
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62 |
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63 #define FILHDR struct external_filehdr |
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64 #define FILHSZ 20 |
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65 |
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66 |
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67 /********************** AOUT "OPTIONAL HEADER"= |
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68 **********************/ |
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69 |
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70 |
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71 typedef struct |
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72 { |
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73 unsigned short magic; /* type of file */ |
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74 unsigned short vstamp; /* version stamp */ |
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75 host_ulong tsize; /* text size in bytes, padded to FW bdry*/ |
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76 host_ulong dsize; /* initialized data " " */ |
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77 host_ulong bsize; /* uninitialized data " " */ |
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78 host_ulong entry; /* entry pt. */ |
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79 host_ulong text_start; /* base of text used for this file */ |
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80 host_ulong data_start; /* base of data used for this file= |
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81 */ |
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82 } |
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83 AOUTHDR; |
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84 |
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85 #define AOUTSZ 28 |
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86 #define AOUTHDRSZ 28 |
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87 |
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88 #define OMAGIC 0404 /* object files, eg as output */ |
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89 #define ZMAGIC 0413 /* demand load format, eg normal ld output */ |
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90 #define STMAGIC 0401 /* target shlib */ |
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91 #define SHMAGIC 0443 /* host shlib */ |
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92 |
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93 |
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94 /* define some NT default values */ |
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95 /* #define NT_IMAGE_BASE 0x400000 moved to internal.h */ |
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96 #define NT_SECTION_ALIGNMENT 0x1000 |
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97 #define NT_FILE_ALIGNMENT 0x200 |
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98 #define NT_DEF_RESERVE 0x100000 |
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99 #define NT_DEF_COMMIT 0x1000 |
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100 |
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101 /********************** SECTION HEADER **********************/ |
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102 |
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103 |
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104 struct external_scnhdr { |
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105 char s_name[8]; /* section name */ |
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106 host_ulong s_paddr; /* physical address, offset |
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107 of last addr in scn */ |
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108 host_ulong s_vaddr; /* virtual address */ |
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109 host_ulong s_size; /* section size */ |
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110 host_ulong s_scnptr; /* file ptr to raw data for section */ |
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111 host_ulong s_relptr; /* file ptr to relocation */ |
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112 host_ulong s_lnnoptr; /* file ptr to line numbers */ |
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113 unsigned short s_nreloc; /* number of relocation entries */ |
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114 unsigned short s_nlnno; /* number of line number entries*/ |
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115 host_ulong s_flags; /* flags */ |
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116 }; |
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117 |
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118 #define SCNHDR struct external_scnhdr |
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119 #define SCNHSZ 40 |
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120 |
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121 /* |
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122 * names of "special" sections |
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123 */ |
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124 #define _TEXT ".text" |
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125 #define _DATA ".data" |
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126 #define _BSS ".bss" |
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127 #define _COMMENT ".comment" |
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128 #define _LIB ".lib" |
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129 |
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130 /********************** LINE NUMBERS **********************/ |
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131 |
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132 /* 1 line number entry for every "breakpointable" source line in a section. |
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133 * Line numbers are grouped on a per function basis; first entry in a function |
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134 * grouping will have l_lnno = 0 and in place of physical address will be the |
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135 * symbol table index of the function name. |
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136 */ |
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137 struct external_lineno { |
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138 union { |
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139 host_ulong l_symndx; /* function name symbol index, iff l_lnno 0 */ |
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140 host_ulong l_paddr; /* (physical) address of line number */ |
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141 } l_addr; |
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142 unsigned short l_lnno; /* line number */ |
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143 }; |
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144 |
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145 #define LINENO struct external_lineno |
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146 #define LINESZ 6 |
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147 |
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148 /********************** SYMBOLS **********************/ |
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149 |
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150 #define E_SYMNMLEN 8 /* # characters in a symbol name */ |
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151 #define E_FILNMLEN 14 /* # characters in a file name */ |
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152 #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ |
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153 |
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154 struct __attribute__((packed)) external_syment |
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155 { |
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156 union { |
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157 char e_name[E_SYMNMLEN]; |
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158 struct { |
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159 host_ulong e_zeroes; |
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160 host_ulong e_offset; |
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161 } e; |
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162 } e; |
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163 host_ulong e_value; |
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164 unsigned short e_scnum; |
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165 unsigned short e_type; |
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166 char e_sclass[1]; |
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167 char e_numaux[1]; |
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168 }; |
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169 |
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170 #define N_BTMASK (0xf) |
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171 #define N_TMASK (0x30) |
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172 #define N_BTSHFT (4) |
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173 #define N_TSHIFT (2) |
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174 |
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175 union external_auxent { |
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176 struct { |
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177 host_ulong x_tagndx; /* str, un, or enum tag indx */ |
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178 union { |
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179 struct { |
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180 unsigned short x_lnno; /* declaration line number */ |
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181 unsigned short x_size; /* str/union/array size */ |
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182 } x_lnsz; |
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183 host_ulong x_fsize; /* size of function */ |
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184 } x_misc; |
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185 union { |
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186 struct { /* if ISFCN, tag, or .bb */ |
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187 host_ulong x_lnnoptr;/* ptr to fcn line # */ |
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188 host_ulong x_endndx; /* entry ndx past block end */ |
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189 } x_fcn; |
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190 struct { /* if ISARY, up to 4 dimen. */ |
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191 char x_dimen[E_DIMNUM][2]; |
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192 } x_ary; |
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193 } x_fcnary; |
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194 unsigned short x_tvndx; /* tv index */ |
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195 } x_sym; |
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196 |
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197 union { |
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198 char x_fname[E_FILNMLEN]; |
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199 struct { |
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200 host_ulong x_zeroes; |
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201 host_ulong x_offset; |
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202 } x_n; |
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203 } x_file; |
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204 |
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205 struct { |
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206 host_ulong x_scnlen; /* section length */ |
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207 unsigned short x_nreloc; /* # relocation entries */ |
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208 unsigned short x_nlinno; /* # line numbers */ |
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209 host_ulong x_checksum; /* section COMDAT checksum */ |
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210 unsigned short x_associated;/* COMDAT associated section index */ |
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211 char x_comdat[1]; /* COMDAT selection number */ |
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212 } x_scn; |
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213 |
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214 struct { |
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215 host_ulong x_tvfill; /* tv fill value */ |
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216 unsigned short x_tvlen; /* length of .tv */ |
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217 char x_tvran[2][2]; /* tv range */ |
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218 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ |
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219 |
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220 }; |
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221 |
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222 #define SYMENT struct external_syment |
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223 #define SYMESZ 18 |
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224 #define AUXENT union external_auxent |
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225 #define AUXESZ 18 |
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226 |
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227 #define _ETEXT "etext" |
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228 |
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229 /********************** RELOCATION DIRECTIVES **********************/ |
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230 |
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231 struct external_reloc { |
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232 char r_vaddr[4]; |
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233 char r_symndx[4]; |
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234 char r_type[2]; |
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235 }; |
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236 |
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237 #define RELOC struct external_reloc |
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238 #define RELSZ 10 |
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239 |
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240 /* end of coff/i386.h */ |
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241 |
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242 /* PE COFF header information */ |
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243 |
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244 #ifndef _PE_H |
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245 #define _PE_H |
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246 |
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247 /* NT specific file attributes */ |
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248 #define IMAGE_FILE_RELOCS_STRIPPED 0x0001 |
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249 #define IMAGE_FILE_EXECUTABLE_IMAGE 0x0002 |
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250 #define IMAGE_FILE_LINE_NUMS_STRIPPED 0x0004 |
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251 #define IMAGE_FILE_LOCAL_SYMS_STRIPPED 0x0008 |
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252 #define IMAGE_FILE_BYTES_REVERSED_LO 0x0080 |
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253 #define IMAGE_FILE_32BIT_MACHINE 0x0100 |
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254 #define IMAGE_FILE_DEBUG_STRIPPED 0x0200 |
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255 #define IMAGE_FILE_SYSTEM 0x1000 |
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256 #define IMAGE_FILE_DLL 0x2000 |
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257 #define IMAGE_FILE_BYTES_REVERSED_HI 0x8000 |
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258 |
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259 /* additional flags to be set for section headers to allow the NT loader to |
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260 read and write to the section data (to replace the addresses of data in |
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261 dlls for one thing); also to execute the section in .text's case= |
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262 */ |
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263 #define IMAGE_SCN_MEM_DISCARDABLE 0x02000000 |
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264 #define IMAGE_SCN_MEM_EXECUTE 0x20000000 |
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265 #define IMAGE_SCN_MEM_READ 0x40000000 |
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266 #define IMAGE_SCN_MEM_WRITE 0x80000000 |
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267 |
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268 /* |
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269 * Section characteristics added for ppc-nt |
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270 */ |
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271 |
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272 #define IMAGE_SCN_TYPE_NO_PAD 0x00000008 /* Reserved. */ |
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273 |
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274 #define IMAGE_SCN_CNT_CODE 0x00000020 /* Section contains code. */ |
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275 #define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040 /* Section contains initialized data. */ |
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276 #define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080 /* Section contains uninitialized data. */ |
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277 |
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278 #define IMAGE_SCN_LNK_OTHER 0x00000100 /* Reserved. */ |
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279 #define IMAGE_SCN_LNK_INFO 0x00000200 /* Section contains comments or some other type of information. */ |
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280 #define IMAGE_SCN_LNK_REMOVE 0x00000800 /* Section contents will not become part of image. */ |
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281 #define IMAGE_SCN_LNK_COMDAT 0x00001000 /* Section contents comdat. */ |
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282 |
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283 #define IMAGE_SCN_MEM_FARDATA 0x00008000 |
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284 |
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285 #define IMAGE_SCN_MEM_PURGEABLE 0x00020000 |
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286 #define IMAGE_SCN_MEM_16BIT 0x00020000 |
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287 #define IMAGE_SCN_MEM_LOCKED 0x00040000 |
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288 #define IMAGE_SCN_MEM_PRELOAD 0x00080000 |
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289 |
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290 #define IMAGE_SCN_ALIGN_1BYTES 0x00100000 |
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291 #define IMAGE_SCN_ALIGN_2BYTES 0x00200000 |
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292 #define IMAGE_SCN_ALIGN_4BYTES 0x00300000 |
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293 #define IMAGE_SCN_ALIGN_8BYTES 0x00400000 |
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294 #define IMAGE_SCN_ALIGN_16BYTES 0x00500000 /* Default alignment if no others are specified. */ |
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295 #define IMAGE_SCN_ALIGN_32BYTES 0x00600000 |
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296 #define IMAGE_SCN_ALIGN_64BYTES 0x00700000 |
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297 |
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298 |
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299 #define IMAGE_SCN_LNK_NRELOC_OVFL 0x01000000 /* Section contains extended relocations. */ |
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300 #define IMAGE_SCN_MEM_NOT_CACHED 0x04000000 /* Section is not cachable. */ |
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301 #define IMAGE_SCN_MEM_NOT_PAGED 0x08000000 /* Section is not pageable. */ |
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302 #define IMAGE_SCN_MEM_SHARED 0x10000000 /* Section is shareable. */ |
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303 |
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304 /* COMDAT selection codes. */ |
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305 |
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306 #define IMAGE_COMDAT_SELECT_NODUPLICATES (1) /* Warn if duplicates. */ |
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307 #define IMAGE_COMDAT_SELECT_ANY (2) /* No warning. */ |
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308 #define IMAGE_COMDAT_SELECT_SAME_SIZE (3) /* Warn if different size. */ |
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309 #define IMAGE_COMDAT_SELECT_EXACT_MATCH (4) /* Warn if different. */ |
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310 #define IMAGE_COMDAT_SELECT_ASSOCIATIVE (5) /* Base on other section. */ |
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311 |
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312 /* Magic values that are true for all dos/nt implementations */ |
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313 #define DOSMAGIC 0x5a4d |
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314 #define NT_SIGNATURE 0x00004550 |
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315 |
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316 /* NT allows long filenames, we want to accommodate this. This may break |
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317 some of the bfd functions */ |
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318 #undef FILNMLEN |
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319 #define FILNMLEN 18 /* # characters in a file name */ |
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320 |
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321 |
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322 #ifdef COFF_IMAGE_WITH_PE |
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323 /* The filehdr is only weired in images */ |
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324 |
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325 #undef FILHDR |
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326 struct external_PE_filehdr |
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327 { |
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328 /* DOS header fields */ |
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329 unsigned short e_magic; /* Magic number, 0x5a4d */ |
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330 unsigned short e_cblp; /* Bytes on last page of file, 0x90 */ |
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331 unsigned short e_cp; /* Pages in file, 0x3 */ |
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332 unsigned short e_crlc; /* Relocations, 0x0 */ |
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333 unsigned short e_cparhdr; /* Size of header in paragraphs, 0x4 */ |
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334 unsigned short e_minalloc; /* Minimum extra paragraphs needed, 0x0 */ |
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335 unsigned short e_maxalloc; /* Maximum extra paragraphs needed, 0xFFFF */ |
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336 unsigned short e_ss; /* Initial (relative) SS value, 0x0 */ |
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337 unsigned short e_sp; /* Initial SP value, 0xb8 */ |
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338 unsigned short e_csum; /* Checksum, 0x0 */ |
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339 unsigned short e_ip; /* Initial IP value, 0x0 */ |
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340 unsigned short e_cs; /* Initial (relative) CS value, 0x0 */ |
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341 unsigned short e_lfarlc; /* File address of relocation table, 0x40 */ |
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342 unsigned short e_ovno; /* Overlay number, 0x0 */ |
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343 char e_res[4][2]; /* Reserved words, all 0x0 */ |
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344 unsigned short e_oemid; /* OEM identifier (for e_oeminfo), 0x0 */ |
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345 unsigned short e_oeminfo; /* OEM information; e_oemid specific, 0x0 */ |
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346 char e_res2[10][2]; /* Reserved words, all 0x0 */ |
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347 host_ulong e_lfanew; /* File address of new exe header, 0x80 */ |
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348 char dos_message[16][4]; /* other stuff, always follow DOS header */ |
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349 unsigned int nt_signature; /* required NT signature, 0x4550 */ |
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350 |
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351 /* From standard header */ |
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352 |
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353 unsigned short f_magic; /* magic number */ |
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354 unsigned short f_nscns; /* number of sections */ |
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355 host_ulong f_timdat; /* time & date stamp */ |
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356 host_ulong f_symptr; /* file pointer to symtab */ |
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357 host_ulong f_nsyms; /* number of symtab entries */ |
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358 unsigned short f_opthdr; /* sizeof(optional hdr) */ |
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359 unsigned short f_flags; /* flags */ |
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360 }; |
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361 |
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362 |
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363 #define FILHDR struct external_PE_filehdr |
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364 #undef FILHSZ |
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365 #define FILHSZ 152 |
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366 |
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367 #endif |
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368 |
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369 typedef struct |
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370 { |
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371 unsigned short magic; /* type of file */ |
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372 unsigned short vstamp; /* version stamp */ |
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373 host_ulong tsize; /* text size in bytes, padded to FW bdry*/ |
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374 host_ulong dsize; /* initialized data " " */ |
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375 host_ulong bsize; /* uninitialized data " " */ |
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376 host_ulong entry; /* entry pt. */ |
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377 host_ulong text_start; /* base of text used for this file */ |
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378 host_ulong data_start; /* base of all data used for this file */ |
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379 |
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380 /* NT extra fields; see internal.h for descriptions */ |
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381 host_ulong ImageBase; |
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382 host_ulong SectionAlignment; |
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383 host_ulong FileAlignment; |
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384 unsigned short MajorOperatingSystemVersion; |
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385 unsigned short MinorOperatingSystemVersion; |
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386 unsigned short MajorImageVersion; |
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387 unsigned short MinorImageVersion; |
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388 unsigned short MajorSubsystemVersion; |
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389 unsigned short MinorSubsystemVersion; |
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390 char Reserved1[4]; |
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391 host_ulong SizeOfImage; |
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392 host_ulong SizeOfHeaders; |
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393 host_ulong CheckSum; |
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394 unsigned short Subsystem; |
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395 unsigned short DllCharacteristics; |
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396 host_ulong SizeOfStackReserve; |
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397 host_ulong SizeOfStackCommit; |
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398 host_ulong SizeOfHeapReserve; |
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399 host_ulong SizeOfHeapCommit; |
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400 host_ulong LoaderFlags; |
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401 host_ulong NumberOfRvaAndSizes; |
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402 /* IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES]; */ |
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403 char DataDirectory[16][2][4]; /* 16 entries, 2 elements/entry, 4 chars */ |
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404 |
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405 } PEAOUTHDR; |
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406 |
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407 |
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408 #undef AOUTSZ |
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409 #define AOUTSZ (AOUTHDRSZ + 196) |
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410 |
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411 #undef E_FILNMLEN |
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412 #define E_FILNMLEN 18 /* # characters in a file name */ |
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413 #endif |
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414 |
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415 /* end of coff/pe.h */ |
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416 |
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417 #define DT_NON (0) /* no derived type */ |
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418 #define DT_PTR (1) /* pointer */ |
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419 #define DT_FCN (2) /* function */ |
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420 #define DT_ARY (3) /* array */ |
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421 |
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422 #define ISPTR(x) (((x) & N_TMASK) == (DT_PTR << N_BTSHFT)) |
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423 #define ISFCN(x) (((x) & N_TMASK) == (DT_FCN << N_BTSHFT)) |
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424 #define ISARY(x) (((x) & N_TMASK) == (DT_ARY << N_BTSHFT)) |
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425 |
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426 #ifdef __cplusplus |
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427 } |
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428 #endif |
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429 |
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430 #endif /* _A_OUT_H_ */ |