| 1 | /* Internal format of COFF object file data structures, for GNU BFD. |
| 2 | This file is part of BFD, the Binary File Descriptor library. |
| 3 | |
| 4 | Copyright (C) 1999-2020 Free Software Foundation, Inc. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 19 | MA 02110-1301, USA. */ |
| 20 | |
| 21 | #ifndef GNU_COFF_INTERNAL_H |
| 22 | #define GNU_COFF_INTERNAL_H 1 |
| 23 | |
| 24 | /* First, make "signed char" work, even on old compilers. */ |
| 25 | #ifndef signed |
| 26 | #ifndef __STDC__ |
| 27 | #define signed /**/ |
| 28 | #endif |
| 29 | #endif |
| 30 | |
| 31 | /********************** FILE HEADER **********************/ |
| 32 | |
| 33 | /* extra stuff in a PE header. */ |
| 34 | |
| 35 | struct internal_extra_pe_filehdr |
| 36 | { |
| 37 | /* DOS header data follows for PE stuff */ |
| 38 | unsigned short e_magic; /* Magic number, 0x5a4d */ |
| 39 | unsigned short e_cblp; /* Bytes on last page of file, 0x90 */ |
| 40 | unsigned short e_cp; /* Pages in file, 0x3 */ |
| 41 | unsigned short e_crlc; /* Relocations, 0x0 */ |
| 42 | unsigned short e_cparhdr; /* Size of header in paragraphs, 0x4 */ |
| 43 | unsigned short e_minalloc; /* Minimum extra paragraphs needed, 0x0 */ |
| 44 | unsigned short e_maxalloc; /* Maximum extra paragraphs needed, 0xFFFF */ |
| 45 | unsigned short e_ss; /* Initial (relative) SS value, 0x0 */ |
| 46 | unsigned short e_sp; /* Initial SP value, 0xb8 */ |
| 47 | unsigned short e_csum; /* Checksum, 0x0 */ |
| 48 | unsigned short e_ip; /* Initial IP value, 0x0 */ |
| 49 | unsigned short e_cs; /* Initial (relative) CS value, 0x0 */ |
| 50 | unsigned short e_lfarlc; /* File address of relocation table, 0x40 */ |
| 51 | unsigned short e_ovno; /* Overlay number, 0x0 */ |
| 52 | unsigned short e_res[4]; /* Reserved words, all 0x0 */ |
| 53 | unsigned short e_oemid; /* OEM identifier (for e_oeminfo), 0x0 */ |
| 54 | unsigned short e_oeminfo; /* OEM information; e_oemid specific, 0x0 */ |
| 55 | unsigned short e_res2[10]; /* Reserved words, all 0x0 */ |
| 56 | bfd_vma e_lfanew; /* File address of new exe header, 0x80 */ |
| 57 | unsigned int dos_message[16]; /* Text which always follows DOS header. */ |
| 58 | bfd_vma nt_signature; /* required NT signature, 0x4550 */ |
| 59 | }; |
| 60 | |
| 61 | #define GO32_STUBSIZE 2048 |
| 62 | |
| 63 | struct internal_filehdr |
| 64 | { |
| 65 | struct internal_extra_pe_filehdr pe; |
| 66 | |
| 67 | /* coff-stgo32 EXE stub header before BFD tdata has been allocated. |
| 68 | Its data is kept in INTERNAL_FILEHDR.GO32STUB afterwards. |
| 69 | |
| 70 | F_GO32STUB is set iff go32stub contains a valid data. Artifical headers |
| 71 | created in BFD have no pre-set go32stub. */ |
| 72 | char go32stub[GO32_STUBSIZE]; |
| 73 | |
| 74 | /* Standard coff internal info. */ |
| 75 | unsigned short f_magic; /* magic number */ |
| 76 | unsigned int f_nscns; /* number of sections */ |
| 77 | long f_timdat; /* time & date stamp */ |
| 78 | bfd_vma f_symptr; /* file pointer to symtab */ |
| 79 | long f_nsyms; /* number of symtab entries */ |
| 80 | unsigned short f_opthdr; /* sizeof(optional hdr) */ |
| 81 | unsigned short f_flags; /* flags */ |
| 82 | unsigned short f_target_id; /* (TI COFF specific) */ |
| 83 | }; |
| 84 | |
| 85 | |
| 86 | /* Bits for f_flags: |
| 87 | F_RELFLG relocation info stripped from file |
| 88 | F_EXEC file is executable (no unresolved external references) |
| 89 | F_LNNO line numbers stripped from file |
| 90 | F_LSYMS local symbols stripped from file |
| 91 | F_AR16WR file is 16-bit little-endian |
| 92 | F_AR32WR file is 32-bit little-endian |
| 93 | F_AR32W file is 32-bit big-endian |
| 94 | F_DYNLOAD rs/6000 aix: dynamically loadable w/imports & exports |
| 95 | F_SHROBJ rs/6000 aix: file is a shared object |
| 96 | F_DLL PE format DLL |
| 97 | F_GO32STUB Field go32stub contains valid data. */ |
| 98 | |
| 99 | #define F_RELFLG (0x0001) |
| 100 | #define F_EXEC (0x0002) |
| 101 | #define F_LNNO (0x0004) |
| 102 | #define F_LSYMS (0x0008) |
| 103 | #define F_AR16WR (0x0080) |
| 104 | #define F_AR32WR (0x0100) |
| 105 | #define F_AR32W (0x0200) |
| 106 | #define F_DYNLOAD (0x1000) |
| 107 | #define F_SHROBJ (0x2000) |
| 108 | #define F_DLL (0x2000) |
| 109 | #define F_GO32STUB (0x4000) |
| 110 | |
| 111 | /* Extra structure which is used in the optional header. */ |
| 112 | typedef struct _IMAGE_DATA_DIRECTORY |
| 113 | { |
| 114 | bfd_vma VirtualAddress; |
| 115 | long Size; |
| 116 | } IMAGE_DATA_DIRECTORY; |
| 117 | #define PE_EXPORT_TABLE 0 |
| 118 | #define PE_IMPORT_TABLE 1 |
| 119 | #define PE_RESOURCE_TABLE 2 |
| 120 | #define PE_EXCEPTION_TABLE 3 |
| 121 | #define PE_CERTIFICATE_TABLE 4 |
| 122 | #define PE_BASE_RELOCATION_TABLE 5 |
| 123 | #define PE_DEBUG_DATA 6 |
| 124 | #define PE_ARCHITECTURE 7 |
| 125 | #define PE_GLOBAL_PTR 8 |
| 126 | #define PE_TLS_TABLE 9 |
| 127 | #define PE_LOAD_CONFIG_TABLE 10 |
| 128 | #define PE_BOUND_IMPORT_TABLE 11 |
| 129 | #define PE_IMPORT_ADDRESS_TABLE 12 |
| 130 | #define PE_DELAY_IMPORT_DESCRIPTOR 13 |
| 131 | #define PE_CLR_RUNTIME_HEADER 14 |
| 132 | /* DataDirectory[15] is currently reserved, so no define. */ |
| 133 | #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16 |
| 134 | |
| 135 | /* Extra structure used in debug directory. */ |
| 136 | struct internal_IMAGE_DEBUG_DIRECTORY |
| 137 | { |
| 138 | unsigned long Characteristics; |
| 139 | unsigned long TimeDateStamp; |
| 140 | unsigned short MajorVersion; |
| 141 | unsigned short MinorVersion; |
| 142 | unsigned long Type; |
| 143 | unsigned long SizeOfData; |
| 144 | unsigned long AddressOfRawData; |
| 145 | unsigned long PointerToRawData; |
| 146 | }; |
| 147 | |
| 148 | #define PE_IMAGE_DEBUG_TYPE_UNKNOWN 0 |
| 149 | #define PE_IMAGE_DEBUG_TYPE_COFF 1 |
| 150 | #define PE_IMAGE_DEBUG_TYPE_CODEVIEW 2 |
| 151 | #define PE_IMAGE_DEBUG_TYPE_FPO 3 |
| 152 | #define PE_IMAGE_DEBUG_TYPE_MISC 4 |
| 153 | #define PE_IMAGE_DEBUG_TYPE_EXCEPTION 5 |
| 154 | #define PE_IMAGE_DEBUG_TYPE_FIXUP 6 |
| 155 | #define PE_IMAGE_DEBUG_TYPE_OMAP_TO_SRC 7 |
| 156 | #define PE_IMAGE_DEBUG_TYPE_OMAP_FROM_SRC 8 |
| 157 | #define PE_IMAGE_DEBUG_TYPE_BORLAND 9 |
| 158 | #define PE_IMAGE_DEBUG_TYPE_RESERVED10 10 |
| 159 | #define PE_IMAGE_DEBUG_TYPE_CLSID 11 |
| 160 | |
| 161 | /* Extra structure for a codeview debug record */ |
| 162 | #define CV_INFO_SIGNATURE_LENGTH 16 |
| 163 | |
| 164 | typedef struct _CODEVIEW_INFO |
| 165 | { |
| 166 | unsigned long CVSignature; |
| 167 | char Signature[CV_INFO_SIGNATURE_LENGTH]; |
| 168 | unsigned int SignatureLength; |
| 169 | unsigned long Age; |
| 170 | // char PdbFileName[]; |
| 171 | } CODEVIEW_INFO; |
| 172 | |
| 173 | /* Default image base for NT. */ |
| 174 | #define NT_EXE_IMAGE_BASE 0x400000 |
| 175 | #define NT_DLL_IMAGE_BASE 0x10000000 |
| 176 | |
| 177 | /* Default image base for BeOS. */ |
| 178 | #define BEOS_EXE_IMAGE_BASE 0x80000000 |
| 179 | #define BEOS_DLL_IMAGE_BASE 0x10000000 |
| 180 | |
| 181 | /* Extra stuff in a PE aouthdr */ |
| 182 | |
| 183 | #define PE_DEF_SECTION_ALIGNMENT 0x1000 |
| 184 | #ifndef PE_DEF_FILE_ALIGNMENT |
| 185 | # define PE_DEF_FILE_ALIGNMENT 0x200 |
| 186 | #endif |
| 187 | |
| 188 | struct internal_extra_pe_aouthdr |
| 189 | { |
| 190 | /* FIXME: The following entries are in AOUTHDR. But they aren't |
| 191 | available internally in bfd. We add them here so that objdump |
| 192 | can dump them. */ |
| 193 | /* The state of the image file. */ |
| 194 | short Magic; |
| 195 | /* Linker major version number. */ |
| 196 | char MajorLinkerVersion; |
| 197 | /* Linker minor version number. */ |
| 198 | char MinorLinkerVersion; |
| 199 | /* Total size of all code sections. */ |
| 200 | bfd_vma SizeOfCode; |
| 201 | /* Total size of all initialized data sections. */ |
| 202 | bfd_vma SizeOfInitializedData; |
| 203 | /* Total size of all uninitialized data sections. */ |
| 204 | bfd_vma SizeOfUninitializedData; |
| 205 | /* Address of entry point relative to image base. */ |
| 206 | bfd_vma AddressOfEntryPoint; |
| 207 | /* Address of the first code section relative to image base. */ |
| 208 | bfd_vma BaseOfCode; |
| 209 | /* Address of the first data section relative to image base. */ |
| 210 | bfd_vma BaseOfData; |
| 211 | |
| 212 | /* PE stuff */ |
| 213 | bfd_vma ImageBase; /* Address of specific location in memory that |
| 214 | file is located, NT default 0x10000. */ |
| 215 | |
| 216 | uint32_t SectionAlignment; /* Section alignment default 0x1000. */ |
| 217 | uint32_t FileAlignment; /* File alignment default 0x200. */ |
| 218 | short MajorOperatingSystemVersion; /* Minimum version of the operating. */ |
| 219 | short MinorOperatingSystemVersion; /* System req'd for exe, default 1. */ |
| 220 | short MajorImageVersion; /* User defineable field to store version of */ |
| 221 | short MinorImageVersion; /* exe or dll being created, default to 0. */ |
| 222 | short MajorSubsystemVersion; /* Minimum subsystem version required to */ |
| 223 | short MinorSubsystemVersion; /* run exe; default to 3.1. */ |
| 224 | uint32_t Reserved1; /* Seems to be 0. */ |
| 225 | uint32_t SizeOfImage; /* Size of memory to allocate for prog. */ |
| 226 | uint32_t SizeOfHeaders; /* Size of PE header and section table. */ |
| 227 | uint32_t CheckSum; /* Set to 0. */ |
| 228 | short Subsystem; |
| 229 | |
| 230 | /* Type of subsystem exe uses for user interface, |
| 231 | possible values: |
| 232 | 1 - NATIVE Doesn't require a subsystem |
| 233 | 2 - WINDOWS_GUI runs in Windows GUI subsystem |
| 234 | 3 - WINDOWS_CUI runs in Windows char sub. (console app) |
| 235 | 5 - OS2_CUI runs in OS/2 character subsystem |
| 236 | 7 - POSIX_CUI runs in Posix character subsystem. */ |
| 237 | unsigned short DllCharacteristics; /* flags for DLL init. */ |
| 238 | bfd_vma SizeOfStackReserve; /* Amount of memory to reserve. */ |
| 239 | bfd_vma SizeOfStackCommit; /* Amount of memory initially committed for |
| 240 | initial thread's stack, default 0x1000. */ |
| 241 | bfd_vma SizeOfHeapReserve; /* Amount of virtual memory to reserve and */ |
| 242 | bfd_vma SizeOfHeapCommit; /* commit, don't know what to defaut it to. */ |
| 243 | uint32_t LoaderFlags; /* Can probably set to 0. */ |
| 244 | uint32_t NumberOfRvaAndSizes; /* Number of entries in next entry, 16. */ |
| 245 | IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES]; |
| 246 | }; |
| 247 | |
| 248 | /********************** AOUT "OPTIONAL HEADER" **********************/ |
| 249 | struct internal_aouthdr |
| 250 | { |
| 251 | short magic; /* type of file */ |
| 252 | short vstamp; /* version stamp */ |
| 253 | bfd_vma tsize; /* text size in bytes, padded to FW bdry*/ |
| 254 | bfd_vma dsize; /* initialized data " " */ |
| 255 | bfd_vma bsize; /* uninitialized data " " */ |
| 256 | bfd_vma entry; /* entry pt. */ |
| 257 | bfd_vma text_start; /* base of text used for this file */ |
| 258 | bfd_vma data_start; /* base of data used for this file */ |
| 259 | |
| 260 | /* RS/6000 stuff */ |
| 261 | bfd_vma o_toc; /* address of TOC */ |
| 262 | short o_snentry; /* section number for entry point */ |
| 263 | short o_sntext; /* section number for text */ |
| 264 | short o_sndata; /* section number for data */ |
| 265 | short o_sntoc; /* section number for toc */ |
| 266 | short o_snloader; /* section number for loader section */ |
| 267 | short o_snbss; /* section number for bss */ |
| 268 | short o_algntext; /* max alignment for text */ |
| 269 | short o_algndata; /* max alignment for data */ |
| 270 | short o_modtype; /* Module type field, 1R,RE,RO */ |
| 271 | short o_cputype; /* Encoded CPU type */ |
| 272 | bfd_vma o_maxstack; /* max stack size allowed. */ |
| 273 | bfd_vma o_maxdata; /* max data size allowed. */ |
| 274 | |
| 275 | /* ECOFF stuff */ |
| 276 | bfd_vma bss_start; /* Base of bss section. */ |
| 277 | bfd_vma gp_value; /* GP register value. */ |
| 278 | unsigned long gprmask; /* General registers used. */ |
| 279 | unsigned long cprmask[4]; /* Coprocessor registers used. */ |
| 280 | unsigned long fprmask; /* Floating pointer registers used. */ |
| 281 | |
| 282 | /* Apollo stuff */ |
| 283 | long o_inlib; /* inlib data */ |
| 284 | long o_sri; /* Static Resource Information */ |
| 285 | long vid[2]; /* Version id */ |
| 286 | |
| 287 | struct internal_extra_pe_aouthdr pe; |
| 288 | }; |
| 289 | |
| 290 | /********************** STORAGE CLASSES **********************/ |
| 291 | |
| 292 | /* This used to be defined as -1, but now n_sclass is unsigned. */ |
| 293 | #define C_EFCN 0xff /* physical end of function */ |
| 294 | #define C_NULL 0 |
| 295 | #define C_AUTO 1 /* automatic variable */ |
| 296 | #define C_EXT 2 /* external symbol */ |
| 297 | #define C_STAT 3 /* static */ |
| 298 | #define C_REG 4 /* register variable */ |
| 299 | #define C_EXTDEF 5 /* external definition */ |
| 300 | #define C_LABEL 6 /* label */ |
| 301 | #define C_ULABEL 7 /* undefined label */ |
| 302 | #define C_MOS 8 /* member of structure */ |
| 303 | #define C_ARG 9 /* function argument */ |
| 304 | #define C_STRTAG 10 /* structure tag */ |
| 305 | #define C_MOU 11 /* member of union */ |
| 306 | #define C_UNTAG 12 /* union tag */ |
| 307 | #define C_TPDEF 13 /* type definition */ |
| 308 | #define C_USTATIC 14 /* undefined static */ |
| 309 | #define C_ENTAG 15 /* enumeration tag */ |
| 310 | #define C_MOE 16 /* member of enumeration */ |
| 311 | #define C_REGPARM 17 /* register parameter */ |
| 312 | #define C_FIELD 18 /* bit field */ |
| 313 | #define C_AUTOARG 19 /* auto argument */ |
| 314 | #define C_LASTENT 20 /* dummy entry (end of block) */ |
| 315 | #define C_BLOCK 100 /* ".bb" or ".eb" */ |
| 316 | #define C_FCN 101 /* ".bf" or ".ef" */ |
| 317 | #define C_EOS 102 /* end of structure */ |
| 318 | #define C_FILE 103 /* file name */ |
| 319 | #define C_LINE 104 /* line # reformatted as symbol table entry */ |
| 320 | #define C_ALIAS 105 /* duplicate tag */ |
| 321 | #define C_HIDDEN 106 /* ext symbol in dmert public lib */ |
| 322 | #define C_WEAKEXT 127 /* weak symbol -- GNU extension. */ |
| 323 | |
| 324 | /* New storage classes for TI COFF */ |
| 325 | #define C_UEXT 19 /* Tentative external definition */ |
| 326 | #define C_STATLAB 20 /* Static load time label */ |
| 327 | #define C_EXTLAB 21 /* External load time label */ |
| 328 | #define C_SYSTEM 23 /* System Wide variable */ |
| 329 | |
| 330 | /* New storage classes for WINDOWS_NT */ |
| 331 | #define C_SECTION 104 /* section name */ |
| 332 | #define C_NT_WEAK 105 /* weak external */ |
| 333 | |
| 334 | /* New storage classes for 80960 */ |
| 335 | |
| 336 | /* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */ |
| 337 | #define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */ |
| 338 | |
| 339 | #define C_SCALL 107 /* Procedure reachable via system call */ |
| 340 | #define C_LEAFEXT 108 /* External leaf */ |
| 341 | #define C_LEAFSTAT 113 /* Static leaf */ |
| 342 | #define C_OPTVAR 109 /* Optimized variable */ |
| 343 | #define C_DEFINE 110 /* Preprocessor #define */ |
| 344 | #define C_PRAGMA 111 /* Advice to compiler or linker */ |
| 345 | #define C_SEGMENT 112 /* 80960 segment name */ |
| 346 | |
| 347 | /* New storage classes for RS/6000 */ |
| 348 | #define C_HIDEXT 107 /* Un-named external symbol */ |
| 349 | #define C_BINCL 108 /* Marks beginning of include file */ |
| 350 | #define C_EINCL 109 /* Marks ending of include file */ |
| 351 | #define C_AIX_WEAKEXT 111 /* AIX definition of C_WEAKEXT. */ |
| 352 | |
| 353 | #define C_NULL_VALUE 0x00de1e00 /* Value for a C_NULL deleted entry. */ |
| 354 | |
| 355 | #if defined _AIX52 || defined AIX_WEAK_SUPPORT |
| 356 | #undef C_WEAKEXT |
| 357 | #define C_WEAKEXT C_AIX_WEAKEXT |
| 358 | #endif |
| 359 | |
| 360 | /* storage classes for stab symbols for RS/6000 */ |
| 361 | #define C_GSYM (0x80) |
| 362 | #define C_LSYM (0x81) |
| 363 | #define C_PSYM (0x82) |
| 364 | #define C_RSYM (0x83) |
| 365 | #define C_RPSYM (0x84) |
| 366 | #define C_STSYM (0x85) |
| 367 | #define C_TCSYM (0x86) |
| 368 | #define C_BCOMM (0x87) |
| 369 | #define C_ECOML (0x88) |
| 370 | #define C_ECOMM (0x89) |
| 371 | #define C_DECL (0x8c) |
| 372 | #define C_ENTRY (0x8d) |
| 373 | #define C_FUN (0x8e) |
| 374 | #define C_BSTAT (0x8f) |
| 375 | #define C_ESTAT (0x90) |
| 376 | #define C_GTLS (0x97) |
| 377 | #define C_STTLS (0x98) |
| 378 | |
| 379 | /* Storage classes for Thumb symbols */ |
| 380 | #define C_THUMBEXT (128 + C_EXT) /* 130 */ |
| 381 | #define C_THUMBSTAT (128 + C_STAT) /* 131 */ |
| 382 | #define C_THUMBLABEL (128 + C_LABEL) /* 134 */ |
| 383 | #define C_THUMBEXTFUNC (C_THUMBEXT + 20) /* 150 */ |
| 384 | #define C_THUMBSTATFUNC (C_THUMBSTAT + 20) /* 151 */ |
| 385 | |
| 386 | /* True if XCOFF symbols of class CLASS have auxillary csect information. */ |
| 387 | #define CSECT_SYM_P(CLASS) \ |
| 388 | ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT) |
| 389 | |
| 390 | /********************** SECTION HEADER **********************/ |
| 391 | |
| 392 | #define SCNNMLEN (8) |
| 393 | |
| 394 | struct internal_scnhdr |
| 395 | { |
| 396 | char s_name[SCNNMLEN] ATTRIBUTE_NONSTRING; /* section name */ |
| 397 | |
| 398 | /* Physical address, aliased s_nlib. |
| 399 | In the pei format, this field is the virtual section size |
| 400 | (the size of the section after being loaded int memory), |
| 401 | NOT the physical address. */ |
| 402 | bfd_vma s_paddr; |
| 403 | |
| 404 | bfd_vma s_vaddr; /* virtual address */ |
| 405 | bfd_vma s_size; /* section size */ |
| 406 | bfd_vma s_scnptr; /* file ptr to raw data for section */ |
| 407 | bfd_vma s_relptr; /* file ptr to relocation */ |
| 408 | bfd_vma s_lnnoptr; /* file ptr to line numbers */ |
| 409 | unsigned long s_nreloc; /* number of relocation entries */ |
| 410 | unsigned long s_nlnno; /* number of line number entries*/ |
| 411 | long s_flags; /* flags */ |
| 412 | unsigned char s_page; /* TI COFF load page */ |
| 413 | }; |
| 414 | |
| 415 | /* s_flags "type". */ |
| 416 | #define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */ |
| 417 | #define STYP_DSECT (0x0001) /* "dummy": relocated only*/ |
| 418 | #define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */ |
| 419 | #define STYP_GROUP (0x0004) /* "grouped": formed of input sections */ |
| 420 | #define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */ |
| 421 | #define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated, |
| 422 | loaded; reloc & lineno entries processed normally */ |
| 423 | #define STYP_TEXT (0x0020) /* section contains text only */ |
| 424 | #define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile |
| 425 | will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will |
| 426 | update all process invocations. */ |
| 427 | #define STYP_DATA (0x0040) /* section contains data only */ |
| 428 | #define STYP_BSS (0x0080) /* section contains bss only */ |
| 429 | #define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */ |
| 430 | #define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */ |
| 431 | #define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */ |
| 432 | #define STYP_LIB (0x0800) /* for .lib: same as INFO */ |
| 433 | #define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */ |
| 434 | #define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions |
| 435 | wherever padding is necessary and there is a |
| 436 | word of contiguous bytes beginning on a word |
| 437 | boundary. */ |
| 438 | |
| 439 | #define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */ |
| 440 | |
| 441 | |
| 442 | /********************** LINE NUMBERS **********************/ |
| 443 | |
| 444 | /* 1 line number entry for every "breakpointable" source line in a section. |
| 445 | Line numbers are grouped on a per function basis; first entry in a function |
| 446 | grouping will have l_lnno = 0 and in place of physical address will be the |
| 447 | symbol table index of the function name. */ |
| 448 | |
| 449 | struct internal_lineno |
| 450 | { |
| 451 | union |
| 452 | { |
| 453 | bfd_signed_vma l_symndx; /* function name symbol index, iff l_lnno == 0*/ |
| 454 | bfd_signed_vma l_paddr; /* (physical) address of line number */ |
| 455 | } l_addr; |
| 456 | unsigned long l_lnno; /* line number */ |
| 457 | }; |
| 458 | |
| 459 | /********************** SYMBOLS **********************/ |
| 460 | |
| 461 | #define SYMNMLEN 8 /* # characters in a symbol name */ |
| 462 | #define FILNMLEN 14 /* # characters in a file name */ |
| 463 | #define DIMNUM 4 /* # array dimensions in auxiliary entry */ |
| 464 | |
| 465 | struct internal_syment |
| 466 | { |
| 467 | union |
| 468 | { |
| 469 | char _n_name[SYMNMLEN] ATTRIBUTE_NONSTRING; /* old COFF version */ |
| 470 | struct |
| 471 | { |
| 472 | bfd_hostptr_t _n_zeroes; /* new == 0 */ |
| 473 | bfd_hostptr_t _n_offset; /* offset into string table */ |
| 474 | } _n_n; |
| 475 | char *_n_nptr[2]; /* allows for overlaying */ |
| 476 | } _n; |
| 477 | bfd_vma n_value; /* value of symbol */ |
| 478 | int n_scnum; /* section number */ |
| 479 | unsigned short n_flags; /* copy of flags from filhdr */ |
| 480 | unsigned short n_type; /* type and derived type */ |
| 481 | unsigned char n_sclass; /* storage class */ |
| 482 | unsigned char n_numaux; /* number of aux. entries */ |
| 483 | }; |
| 484 | |
| 485 | #define n_name _n._n_name |
| 486 | #define n_zeroes _n._n_n._n_zeroes |
| 487 | #define n_offset _n._n_n._n_offset |
| 488 | |
| 489 | /* Relocatable symbols have number of the section in which they are defined, |
| 490 | or one of the following: */ |
| 491 | |
| 492 | #define N_UNDEF ((int)0) /* undefined symbol */ |
| 493 | #define N_ABS ((int)-1) /* value of symbol is absolute */ |
| 494 | #define N_DEBUG ((int)-2) /* debugging symbol -- value is meaningless */ |
| 495 | #define N_TV ((int)-3) /* indicates symbol needs preload transfer vector */ |
| 496 | #define P_TV ((int)-4) /* indicates symbol needs postload transfer vector*/ |
| 497 | |
| 498 | /* Type of a symbol, in low N bits of the word. */ |
| 499 | |
| 500 | #define T_NULL 0 |
| 501 | #define T_VOID 1 /* function argument (only used by compiler) */ |
| 502 | #define T_CHAR 2 /* character */ |
| 503 | #define T_SHORT 3 /* short integer */ |
| 504 | #define T_INT 4 /* integer */ |
| 505 | #define T_LONG 5 /* long integer */ |
| 506 | #define T_FLOAT 6 /* floating point */ |
| 507 | #define T_DOUBLE 7 /* double word */ |
| 508 | #define T_STRUCT 8 /* structure */ |
| 509 | #define T_UNION 9 /* union */ |
| 510 | #define T_ENUM 10 /* enumeration */ |
| 511 | #define T_MOE 11 /* member of enumeration*/ |
| 512 | #define T_UCHAR 12 /* unsigned character */ |
| 513 | #define T_USHORT 13 /* unsigned short */ |
| 514 | #define T_UINT 14 /* unsigned integer */ |
| 515 | #define T_ULONG 15 /* unsigned long */ |
| 516 | #define T_LNGDBL 16 /* long double */ |
| 517 | |
| 518 | /* Derived types, in n_type. */ |
| 519 | |
| 520 | #define DT_NON (0) /* no derived type */ |
| 521 | #define DT_PTR (1) /* pointer */ |
| 522 | #define DT_FCN (2) /* function */ |
| 523 | #define DT_ARY (3) /* array */ |
| 524 | |
| 525 | #define BTYPE(x) ((x) & N_BTMASK) |
| 526 | #define DTYPE(x) (((x) & N_TMASK) >> N_BTSHFT) |
| 527 | |
| 528 | #define ISPTR(x) \ |
| 529 | (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT)) |
| 530 | #define ISFCN(x) \ |
| 531 | (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT)) |
| 532 | #define ISARY(x) \ |
| 533 | (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT)) |
| 534 | #define ISTAG(x) \ |
| 535 | ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG) |
| 536 | #define DECREF(x) \ |
| 537 | ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK)) |
| 538 | |
| 539 | union internal_auxent |
| 540 | { |
| 541 | struct |
| 542 | { |
| 543 | |
| 544 | union |
| 545 | { |
| 546 | long l; /* str, un, or enum tag indx */ |
| 547 | struct coff_ptr_struct *p; |
| 548 | } x_tagndx; |
| 549 | |
| 550 | union |
| 551 | { |
| 552 | struct |
| 553 | { |
| 554 | unsigned short x_lnno; /* declaration line number */ |
| 555 | unsigned short x_size; /* str/union/array size */ |
| 556 | } x_lnsz; |
| 557 | long x_fsize; /* size of function */ |
| 558 | } x_misc; |
| 559 | |
| 560 | union |
| 561 | { |
| 562 | struct |
| 563 | { /* if ISFCN, tag, or .bb */ |
| 564 | bfd_signed_vma x_lnnoptr; /* ptr to fcn line # */ |
| 565 | union |
| 566 | { /* entry ndx past block end */ |
| 567 | long l; |
| 568 | struct coff_ptr_struct *p; |
| 569 | } x_endndx; |
| 570 | } x_fcn; |
| 571 | |
| 572 | struct |
| 573 | { /* if ISARY, up to 4 dimen. */ |
| 574 | unsigned short x_dimen[DIMNUM]; |
| 575 | } x_ary; |
| 576 | } x_fcnary; |
| 577 | |
| 578 | unsigned short x_tvndx; /* tv index */ |
| 579 | } x_sym; |
| 580 | |
| 581 | union |
| 582 | { |
| 583 | /* PR 17754: We use to FILNMLEN for the size of the x_fname |
| 584 | array, but that cause problems as PE targets use a larger |
| 585 | value. We cannot use their definition of EFILNMLEN as this |
| 586 | header can be used without including any PE headers. */ |
| 587 | char x_fname[20]; |
| 588 | struct |
| 589 | { |
| 590 | long x_zeroes; |
| 591 | long x_offset; |
| 592 | } x_n; |
| 593 | } x_file; |
| 594 | |
| 595 | struct |
| 596 | { |
| 597 | long x_scnlen; /* section length */ |
| 598 | unsigned short x_nreloc; /* # relocation entries */ |
| 599 | unsigned short x_nlinno; /* # line numbers */ |
| 600 | unsigned long x_checksum; /* section COMDAT checksum for PE */ |
| 601 | unsigned short x_associated; /* COMDAT associated section index for PE */ |
| 602 | unsigned char x_comdat; /* COMDAT selection number for PE */ |
| 603 | } x_scn; |
| 604 | |
| 605 | struct |
| 606 | { |
| 607 | long x_tvfill; /* tv fill value */ |
| 608 | unsigned short x_tvlen; /* length of .tv */ |
| 609 | unsigned short x_tvran[2]; /* tv range */ |
| 610 | } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ |
| 611 | |
| 612 | /****************************************** |
| 613 | * RS/6000-specific auxent - last auxent for every external symbol |
| 614 | ******************************************/ |
| 615 | struct |
| 616 | { |
| 617 | union |
| 618 | { /* csect length or enclosing csect */ |
| 619 | bfd_signed_vma l; |
| 620 | struct coff_ptr_struct *p; |
| 621 | } x_scnlen; |
| 622 | long x_parmhash; /* parm type hash index */ |
| 623 | unsigned short x_snhash; /* sect num with parm hash */ |
| 624 | unsigned char x_smtyp; /* symbol align and type */ |
| 625 | /* 0-4 - Log 2 of alignment */ |
| 626 | /* 5-7 - symbol type */ |
| 627 | unsigned char x_smclas; /* storage mapping class */ |
| 628 | long x_stab; /* dbx stab info index */ |
| 629 | unsigned short x_snstab; /* sect num with dbx stab */ |
| 630 | } x_csect; /* csect definition information */ |
| 631 | |
| 632 | /* x_smtyp values: */ |
| 633 | |
| 634 | #define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */ |
| 635 | #define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */ |
| 636 | /* Symbol type values: */ |
| 637 | #define XTY_ER 0 /* External reference */ |
| 638 | #define XTY_SD 1 /* Csect definition */ |
| 639 | #define XTY_LD 2 /* Label definition */ |
| 640 | #define XTY_CM 3 /* .BSS */ |
| 641 | #define XTY_EM 4 /* Error message */ |
| 642 | #define XTY_US 5 /* "Reserved for internal use" */ |
| 643 | |
| 644 | /* x_smclas values: */ |
| 645 | |
| 646 | #define XMC_PR 0 /* Read-only program code */ |
| 647 | #define XMC_RO 1 /* Read-only constant */ |
| 648 | #define XMC_DB 2 /* Read-only debug dictionary table */ |
| 649 | #define XMC_TC 3 /* Read-write general TOC entry */ |
| 650 | #define XMC_UA 4 /* Read-write unclassified */ |
| 651 | #define XMC_RW 5 /* Read-write data */ |
| 652 | #define XMC_GL 6 /* Read-only global linkage */ |
| 653 | #define XMC_XO 7 /* Read-only extended operation */ |
| 654 | #define XMC_SV 8 /* Read-only supervisor call */ |
| 655 | #define XMC_BS 9 /* Read-write BSS */ |
| 656 | #define XMC_DS 10 /* Read-write descriptor csect */ |
| 657 | #define XMC_UC 11 /* Read-write unnamed Fortran common */ |
| 658 | #define XMC_TI 12 /* Read-only traceback index csect */ |
| 659 | #define XMC_TB 13 /* Read-only traceback table csect */ |
| 660 | /* 14 ??? */ |
| 661 | #define XMC_TC0 15 /* Read-write TOC anchor */ |
| 662 | #define XMC_TD 16 /* Read-write data in TOC */ |
| 663 | }; |
| 664 | |
| 665 | /********************** RELOCATION DIRECTIVES **********************/ |
| 666 | |
| 667 | struct internal_reloc |
| 668 | { |
| 669 | bfd_vma r_vaddr; /* Virtual address of reference */ |
| 670 | long r_symndx; /* Index into symbol table */ |
| 671 | unsigned short r_type; /* Relocation type */ |
| 672 | unsigned char r_size; /* Used by RS/6000 and ECOFF */ |
| 673 | unsigned char r_extern; /* Used by ECOFF */ |
| 674 | unsigned long r_offset; /* Used by Alpha ECOFF, SPARC, others */ |
| 675 | }; |
| 676 | |
| 677 | /* X86-64 relocations. */ |
| 678 | #define R_AMD64_ABS 0 /* Reference is absolute, no relocation is necessary. */ |
| 679 | #define R_AMD64_DIR64 1 /* 64-bit address (VA). */ |
| 680 | #define R_AMD64_DIR32 2 /* 32-bit address (VA) R_DIR32. */ |
| 681 | #define R_AMD64_IMAGEBASE 3 /* 32-bit absolute ref w/o base R_IMAGEBASE. */ |
| 682 | #define R_AMD64_PCRLONG 4 /* 32-bit relative address from byte following reloc R_PCRLONG. */ |
| 683 | #define R_AMD64_PCRLONG_1 5 /* 32-bit relative address from byte distance 1 from reloc. */ |
| 684 | #define R_AMD64_PCRLONG_2 6 /* 32-bit relative address from byte distance 2 from reloc. */ |
| 685 | #define R_AMD64_PCRLONG_3 7 /* 32-bit relative address from byte distance 3 from reloc. */ |
| 686 | #define R_AMD64_PCRLONG_4 8 /* 32-bit relative address from byte distance 4 from reloc. */ |
| 687 | #define R_AMD64_PCRLONG_5 9 /* 32-bit relative address from byte distance 5 from reloc. */ |
| 688 | #define R_AMD64_SECTION 10 /* Section index. */ |
| 689 | #define R_AMD64_SECREL 11 /* 32 bit offset from base of section containing target R_SECREL. */ |
| 690 | #define R_AMD64_SECREL7 12 /* 7 bit unsigned offset from base of section containing target. */ |
| 691 | #define R_AMD64_TOKEN 13 /* 32 bit metadata token. */ |
| 692 | #define R_AMD64_PCRQUAD 14 /* Pseude PC64 relocation - Note: not specified by MS/AMD but need for gas pc-relative 64bit wide relocation generated by ELF. */ |
| 693 | |
| 694 | /* i386 Relocations. */ |
| 695 | |
| 696 | #define R_DIR16 1 |
| 697 | #define R_REL24 5 |
| 698 | #define R_DIR32 6 |
| 699 | #define R_IMAGEBASE 7 |
| 700 | #define R_SECREL32 11 |
| 701 | #define R_RELBYTE 15 |
| 702 | #define R_RELWORD 16 |
| 703 | #define R_RELLONG 17 |
| 704 | #define R_PCRBYTE 18 |
| 705 | #define R_PCRWORD 19 |
| 706 | #define R_PCRLONG 20 |
| 707 | #define R_PCR24 21 |
| 708 | #define R_IPRSHORT 24 |
| 709 | #define R_IPRLONG 26 |
| 710 | #define R_GETSEG 29 |
| 711 | #define R_GETPA 30 |
| 712 | #define R_TAGWORD 31 |
| 713 | #define R_JUMPTARG 32 /* strange 29k 00xx00xx reloc */ |
| 714 | #define R_PARTLS16 32 |
| 715 | #define R_PARTMS8 33 |
| 716 | |
| 717 | #define R_PCR16L 128 |
| 718 | #define R_PCR26L 129 |
| 719 | #define R_VRT16 130 |
| 720 | #define R_HVRT16 131 |
| 721 | #define R_LVRT16 132 |
| 722 | #define R_VRT32 133 |
| 723 | |
| 724 | |
| 725 | /* This reloc identifies mov.b instructions with a 16bit absolute |
| 726 | address. The linker tries to turn insns with this reloc into |
| 727 | an absolute 8-bit address. */ |
| 728 | #define R_MOV16B1 0x41 |
| 729 | |
| 730 | /* This reloc identifies mov.b instructions which had a 16bit |
| 731 | absolute address which have been shortened into a 8-bit |
| 732 | absolute address. */ |
| 733 | #define R_MOV16B2 0x42 |
| 734 | |
| 735 | /* This reloc identifies jmp insns with a 16bit target address; |
| 736 | the linker tries to turn these insns into bra insns with |
| 737 | an 8bit pc-relative target. */ |
| 738 | #define R_JMP1 0x43 |
| 739 | |
| 740 | /* This reloc identifies a bra with an 8-bit pc-relative |
| 741 | target that was formerly a jmp insn with a 16bit target. */ |
| 742 | #define R_JMP2 0x44 |
| 743 | |
| 744 | /* ??? */ |
| 745 | #define R_RELLONG_NEG 0x45 |
| 746 | |
| 747 | /* This reloc identifies jmp insns with a 24bit target address; |
| 748 | the linker tries to turn these insns into bra insns with |
| 749 | an 8bit pc-relative target. */ |
| 750 | #define R_JMPL1 0x46 |
| 751 | |
| 752 | /* This reloc identifies a bra with an 8-bit pc-relative |
| 753 | target that was formerly a jmp insn with a 24bit target. */ |
| 754 | #define R_JMPL2 0x47 |
| 755 | |
| 756 | /* This reloc identifies mov.b instructions with a 24bit absolute |
| 757 | address. The linker tries to turn insns with this reloc into |
| 758 | an absolute 8-bit address. */ |
| 759 | |
| 760 | #define R_MOV24B1 0x48 |
| 761 | |
| 762 | /* This reloc identifies mov.b instructions which had a 24bit |
| 763 | absolute address which have been shortened into a 8-bit |
| 764 | absolute address. */ |
| 765 | #define R_MOV24B2 0x49 |
| 766 | |
| 767 | /* An h8300 memory indirect jump/call. Forces the address of the jump/call |
| 768 | target into the function vector (in page zero), and the address of the |
| 769 | vector entry to be placed in the jump/call instruction. */ |
| 770 | #define R_MEM_INDIRECT 0x4a |
| 771 | |
| 772 | /* This reloc identifies a 16bit pc-relative branch target which was |
| 773 | shortened into an 8bit pc-relative branch target. */ |
| 774 | #define R_PCRWORD_B 0x4b |
| 775 | |
| 776 | /* This reloc identifies mov.[wl] instructions with a 32/24 bit |
| 777 | absolute address; the linker may turn this into a mov.[wl] |
| 778 | insn with a 16bit absolute address. */ |
| 779 | #define R_MOVL1 0x4c |
| 780 | |
| 781 | /* This reloc identifies mov.[wl] insns which formerly had |
| 782 | a 32/24bit absolute address and now have a 16bit absolute address. */ |
| 783 | #define R_MOVL2 0x4d |
| 784 | |
| 785 | /* This reloc identifies a bCC:8 which will have it's condition |
| 786 | inverted and its target redirected to the target of the branch |
| 787 | in the following insn. */ |
| 788 | #define R_BCC_INV 0x4e |
| 789 | |
| 790 | /* This reloc identifies a jmp instruction that has been deleted. */ |
| 791 | #define R_JMP_DEL 0x4f |
| 792 | |
| 793 | /* Z8k modes */ |
| 794 | #define R_IMM16 0x01 /* 16 bit abs */ |
| 795 | #define R_JR 0x02 /* jr 8 bit disp */ |
| 796 | #define R_IMM4L 0x23 /* low nibble */ |
| 797 | #define R_IMM8 0x22 /* 8 bit abs */ |
| 798 | #define R_IMM32 R_RELLONG /* 32 bit abs */ |
| 799 | #define R_CALL R_DA /* Absolute address which could be a callr */ |
| 800 | #define R_JP R_DA /* Absolute address which could be a jp */ |
| 801 | #define R_REL16 0x04 /* 16 bit PC rel */ |
| 802 | #define R_CALLR 0x05 /* callr 12 bit disp */ |
| 803 | #define R_SEG 0x10 /* set if in segmented mode */ |
| 804 | #define R_IMM4H 0x24 /* high nibble */ |
| 805 | #define R_DISP7 0x25 /* djnz displacement */ |
| 806 | |
| 807 | /* Z80 modes */ |
| 808 | #define R_OFF8 0x32 /* 8 bit signed abs, for (i[xy]+d) */ |
| 809 | #define R_IMM24 0x33 /* 24 bit abs */ |
| 810 | /* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */ |
| 811 | #define R_BYTE0 0x34 /* first (lowest) 8 bits of multibyte value */ |
| 812 | #define R_BYTE1 0x35 /* second 8 bits of multibyte value */ |
| 813 | #define R_BYTE2 0x36 /* third 8 bits of multibyte value */ |
| 814 | #define R_BYTE3 0x37 /* fourth (highest) 8 bits of multibyte value */ |
| 815 | #define R_WORD0 0x38 /* lowest 16 bits of 32 or 24 bit value */ |
| 816 | #define R_WORD1 0x39 /* highest 16 bits of 32 or 24 bit value */ |
| 817 | |
| 818 | #endif /* GNU_COFF_INTERNAL_H */ |