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 | unsigned long f_timdat; /* time & date stamp */
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29 | unsigned long f_symptr; /* file pointer to symtab */
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30 | unsigned long 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 | unsigned long tsize; /* text size in bytes, padded to FW bdry*/
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76 | unsigned long dsize; /* initialized data " " */
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77 | unsigned long bsize; /* uninitialized data " " */
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78 | unsigned long entry; /* entry pt. */
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79 | unsigned long text_start; /* base of text used for this file */
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80 | unsigned long 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 | unsigned long s_paddr; /* physical address, offset
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107 | of last addr in scn */
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108 | unsigned long s_vaddr; /* virtual address */
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109 | unsigned long s_size; /* section size */
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110 | unsigned long s_scnptr; /* file ptr to raw data for section */
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111 | unsigned long s_relptr; /* file ptr to relocation */
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112 | unsigned long 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 | unsigned long 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 | unsigned long l_symndx; /* function name symbol index, iff l_lnno 0 */
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140 | unsigned long 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 | unsigned long e_zeroes;
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160 | unsigned long e_offset;
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161 | } e;
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162 | } e;
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163 | unsigned long 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 | unsigned long 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 | unsigned long 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 | unsigned long x_lnnoptr;/* ptr to fcn line # */
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188 | unsigned long 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 | unsigned long x_zeroes;
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201 | unsigned long 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 | unsigned long 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 | unsigned long 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 | unsigned long 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 cacheable. */
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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 | unsigned long 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 | unsigned long f_timdat; /* time & date stamp */
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356 | unsigned long f_symptr; /* file pointer to symtab */
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357 | unsigned long 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 | unsigned long tsize; /* text size in bytes, padded to FW bdry*/
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374 | unsigned long dsize; /* initialized data " " */
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375 | unsigned long bsize; /* uninitialized data " " */
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376 | unsigned long entry; /* entry pt. */
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377 | unsigned long text_start; /* base of text used for this file */
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378 | unsigned long 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 | unsigned long ImageBase;
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382 | unsigned long SectionAlignment;
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383 | unsigned long 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 | unsigned long SizeOfImage;
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392 | unsigned long SizeOfHeaders;
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393 | unsigned long CheckSum;
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394 | unsigned short Subsystem;
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395 | unsigned short DllCharacteristics;
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396 | unsigned long SizeOfStackReserve;
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397 | unsigned long SizeOfStackCommit;
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398 | unsigned long SizeOfHeapReserve;
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399 | unsigned long SizeOfHeapCommit;
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400 | unsigned long LoaderFlags;
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401 | unsigned long 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_ */
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431 |
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