include/mach-o/external.h

   1 /* Mach-O support for BFD.
   2    Copyright 2011
   3    Free Software Foundation, Inc.
   4
   5    This file is part of BFD, the Binary File Descriptor library.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22 #ifndef _MACH_O_EXTERNAL_H
  23 #define _MACH_O_EXTERNAL_H
  24
  25 struct mach_o_header_external
  26 {
  27   unsigned char magic[4];       /* Magic number.  */
  28   unsigned char cputype[4];     /* CPU that this object is for.  */
  29   unsigned char cpusubtype[4];  /* CPU subtype.  */
  30   unsigned char filetype[4];    /* Type of file.  */
  31   unsigned char ncmds[4];       /* Number of load commands.  */
  32   unsigned char sizeofcmds[4];  /* Total size of load commands.  */
  33   unsigned char flags[4];       /* Flags.  */
  34   unsigned char reserved[4];    /* Reserved (on 64-bit version only).  */
  35 };
  36
  37 #define BFD_MACH_O_HEADER_SIZE 28
  38 #define BFD_MACH_O_HEADER_64_SIZE 32
  39
  40 /* 32-bit section header.  */
  41
  42 struct mach_o_section_32_external
  43 {
  44   unsigned char sectname[16];   /* Section name.  */
  45   unsigned char segname[16];    /* Segment that the section belongs to.  */
  46   unsigned char addr[4];        /* Address of this section in memory.  */
  47   unsigned char size[4];        /* Size in bytes of this section.  */
  48   unsigned char offset[4];      /* File offset of this section.  */
  49   unsigned char align[4];       /* log2 of this section's alignment.  */
  50   unsigned char reloff[4];      /* File offset of this section's relocs.  */
  51   unsigned char nreloc[4];      /* Number of relocs for this section.  */
  52   unsigned char flags[4];       /* Section flags/attributes.  */
  53   unsigned char reserved1[4];
  54   unsigned char reserved2[4];
  55 };
  56 #define BFD_MACH_O_SECTION_SIZE 68
  57
  58 /* 64-bit section header.  */
  59
  60 struct mach_o_section_64_external
  61 {
  62   unsigned char sectname[16];   /* Section name.  */
  63   unsigned char segname[16];    /* Segment that the section belongs to.  */
  64   unsigned char addr[8];        /* Address of this section in memory.  */
  65   unsigned char size[8];        /* Size in bytes of this section.  */
  66   unsigned char offset[4];      /* File offset of this section.  */
  67   unsigned char align[4];       /* log2 of this section's alignment.  */
  68   unsigned char reloff[4];      /* File offset of this section's relocs.  */
  69   unsigned char nreloc[4];      /* Number of relocs for this section.  */
  70   unsigned char flags[4];       /* Section flags/attributes.  */
  71   unsigned char reserved1[4];
  72   unsigned char reserved2[4];
  73   unsigned char reserved3[4];
  74 };
  75 #define BFD_MACH_O_SECTION_64_SIZE 80
  76
  77 struct mach_o_load_command_external
  78 {
  79   unsigned char cmd[4];         /* The type of load command.  */
  80   unsigned char cmdsize[4];     /* Size in bytes of entire command.  */
  81 };
  82 #define BFD_MACH_O_LC_SIZE 8
  83
  84 struct mach_o_segment_command_32_external
  85 {
  86   unsigned char segname[16];    /* Name of this segment.  */
  87   unsigned char vmaddr[4];      /* Virtual memory address of this segment.  */
  88   unsigned char vmsize[4];      /* Size there, in bytes.  */
  89   unsigned char fileoff[4];     /* Offset in bytes of the data to be mapped.  */
  90   unsigned char filesize[4];    /* Size in bytes on disk.  */
  91   unsigned char maxprot[4];     /* Maximum permitted vm protection.  */
  92   unsigned char initprot[4];    /* Initial vm protection.  */
  93   unsigned char nsects[4];      /* Number of sections in this segment.  */
  94   unsigned char flags[4];       /* Flags that affect the loading.  */
  95 };
  96 #define BFD_MACH_O_LC_SEGMENT_SIZE 56 /* Include the header.  */
  97
  98 struct mach_o_segment_command_64_external
  99 {
 100   unsigned char segname[16];    /* Name of this segment.  */
 101   unsigned char vmaddr[8];      /* Virtual memory address of this segment.  */
 102   unsigned char vmsize[8];      /* Size there, in bytes.  */
 103   unsigned char fileoff[8];     /* Offset in bytes of the data to be mapped.  */
 104   unsigned char filesize[8];    /* Size in bytes on disk.  */
 105   unsigned char maxprot[4];     /* Maximum permitted vm protection.  */
 106   unsigned char initprot[4];    /* Initial vm protection.  */
 107   unsigned char nsects[4];      /* Number of sections in this segment.  */
 108   unsigned char flags[4];       /* Flags that affect the loading.  */
 109 };
 110 #define BFD_MACH_O_LC_SEGMENT_64_SIZE 72 /* Include the header.  */
 111
 112 struct mach_o_reloc_info_external
 113 {
 114   unsigned char r_address[4];
 115   unsigned char r_symbolnum[4];
 116 };
 117 #define BFD_MACH_O_RELENT_SIZE 8
 118
 119 struct mach_o_symtab_command_external
 120 {
 121   unsigned char symoff[4];
 122   unsigned char nsyms[4];
 123   unsigned char stroff[4];
 124   unsigned char strsize[4];
 125 };
 126
 127 struct mach_o_nlist_external
 128 {
 129   unsigned char n_strx[4];
 130   unsigned char n_type[1];
 131   unsigned char n_sect[1];
 132   unsigned char n_desc[2];
 133   unsigned char n_value[4];
 134 };
 135 #define BFD_MACH_O_NLIST_SIZE 12
 136
 137 struct mach_o_nlist_64_external
 138 {
 139   unsigned char n_strx[4];
 140   unsigned char n_type[1];
 141   unsigned char n_sect[1];
 142   unsigned char n_desc[2];
 143   unsigned char n_value[8];
 144 };
 145 #define BFD_MACH_O_NLIST_64_SIZE 16
 146
 147 struct mach_o_thread_command_external
 148 {
 149   unsigned char flavour[4];
 150   unsigned char count[4];
 151 };
 152
 153 /* For commands that just have a string or a path.  */
 154 struct mach_o_str_command_external
 155 {
 156   unsigned char str[4];
 157 };
 158
 159 struct mach_o_dylib_command_external
 160 {
 161   unsigned char name[4];
 162   unsigned char timestamp[4];
 163   unsigned char current_version[4];
 164   unsigned char compatibility_version[4];
 165 };
 166
 167 struct mach_o_dysymtab_command_external
 168 {
 169   unsigned char ilocalsym[4];   /* Index of.  */
 170   unsigned char nlocalsym[4];   /* Number of.  */
 171   unsigned char iextdefsym[4];
 172   unsigned char nextdefsym[4];
 173   unsigned char iundefsym[4];
 174   unsigned char nundefsym[4];
 175   unsigned char tocoff[4];
 176   unsigned char ntoc[4];
 177   unsigned char modtaboff[4];
 178   unsigned char nmodtab[4];
 179   unsigned char extrefsymoff[4];
 180   unsigned char nextrefsyms[4];
 181   unsigned char indirectsymoff[4];
 182   unsigned char nindirectsyms[4];
 183   unsigned char extreloff[4];
 184   unsigned char nextrel[4];
 185   unsigned char locreloff[4];
 186   unsigned char nlocrel[4];
 187 };
 188
 189 struct mach_o_dylib_module_external
 190 {
 191   unsigned char module_name[4];
 192   unsigned char iextdefsym[4];
 193   unsigned char nextdefsym[4];
 194   unsigned char irefsym[4];
 195   unsigned char nrefsym[4];
 196   unsigned char ilocalsym[4];
 197   unsigned char nlocalsym[4];
 198   unsigned char iextrel[4];
 199   unsigned char nextrel[4];
 200   unsigned char iinit_iterm[4];
 201   unsigned char ninit_nterm[4];
 202   unsigned char objc_module_info_addr[4];
 203   unsigned char objc_module_info_size[4];
 204 };
 205 #define BFD_MACH_O_DYLIB_MODULE_SIZE 52
 206
 207 struct mach_o_dylib_module_64_external
 208 {
 209   unsigned char module_name[4];
 210   unsigned char iextdefsym[4];
 211   unsigned char nextdefsym[4];
 212   unsigned char irefsym[4];
 213   unsigned char nrefsym[4];
 214   unsigned char ilocalsym[4];
 215   unsigned char nlocalsym[4];
 216   unsigned char iextrel[4];
 217   unsigned char nextrel[4];
 218   unsigned char iinit_iterm[4];
 219   unsigned char ninit_nterm[4];
 220   unsigned char objc_module_info_size[4];
 221   unsigned char objc_module_info_addr[8];
 222 };
 223 #define BFD_MACH_O_DYLIB_MODULE_64_SIZE 56
 224
 225 struct mach_o_dylib_table_of_contents_external
 226 {
 227   unsigned char symbol_index[4];
 228   unsigned char module_index[4];
 229 };
 230 #define BFD_MACH_O_TABLE_OF_CONTENT_SIZE 8
 231
 232 struct mach_o_linkedit_data_command_external
 233 {
 234   unsigned char dataoff[4];
 235   unsigned char datasize[4];
 236 };
 237
 238 struct mach_o_dyld_info_command_external
 239 {
 240   unsigned char rebase_off[4];
 241   unsigned char rebase_size[4];
 242   unsigned char bind_off[4];
 243   unsigned char bind_size[4];
 244   unsigned char weak_bind_off[4];
 245   unsigned char weak_bind_size[4];
 246   unsigned char lazy_bind_off[4];
 247   unsigned char lazy_bind_size[4];
 248   unsigned char export_off[4];
 249   unsigned char export_size[4];
 250 };
 251
 252 struct mach_o_fat_header_external
 253 {
 254   unsigned char magic[4];
 255   unsigned char nfat_arch[4];   /* Number of components.  */
 256 };
 257
 258 struct mach_o_fat_arch_external
 259 {
 260   unsigned char cputype[4];
 261   unsigned char cpusubtype[4];
 262   unsigned char offset[4];      /* File offset of the member.  */
 263   unsigned char size[4];        /* Size of the member.  */
 264   unsigned char align[4];       /* Power of 2.  */
 265 };
 266
 267 #endif /* _MACH_O_EXTERNAL_H */