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 struct internal_filehdr 62 { 63 struct internal_extra_pe_filehdr pe; 64 65 /* Standard coff internal info. */ 66 unsigned short f_magic; /* magic number */ 67 unsigned int f_nscns; /* number of sections */ 68 long f_timdat; /* time & date stamp */ 69 bfd_vma f_symptr; /* file pointer to symtab */ 70 long f_nsyms; /* number of symtab entries */ 71 unsigned short f_opthdr; /* sizeof(optional hdr) */ 72 unsigned short f_flags; /* flags */ 73 unsigned short f_target_id; /* (TI COFF specific) */ 74 }; 75 76 77 /* Bits for f_flags: 78 F_RELFLG relocation info stripped from file 79 F_EXEC file is executable (no unresolved external references) 80 F_LNNO line numbers stripped from file 81 F_LSYMS local symbols stripped from file 82 F_AR16WR file is 16-bit little-endian 83 F_AR32WR file is 32-bit little-endian 84 F_AR32W file is 32-bit big-endian 85 F_DYNLOAD rs/6000 aix: dynamically loadable w/imports & exports 86 F_SHROBJ rs/6000 aix: file is a shared object 87 F_DLL PE format DLL */ 88 89 #define F_RELFLG (0x0001) 90 #define F_EXEC (0x0002) 91 #define F_LNNO (0x0004) 92 #define F_LSYMS (0x0008) 93 #define F_AR16WR (0x0080) 94 #define F_AR32WR (0x0100) 95 #define F_AR32W (0x0200) 96 #define F_DYNLOAD (0x1000) 97 #define F_SHROBJ (0x2000) 98 #define F_DLL (0x2000) 99 100 /* Extra structure which is used in the optional header. */ 101 typedef struct _IMAGE_DATA_DIRECTORY 102 { 103 bfd_vma VirtualAddress; 104 long Size; 105 } IMAGE_DATA_DIRECTORY; 106 #define PE_EXPORT_TABLE 0 107 #define PE_IMPORT_TABLE 1 108 #define PE_RESOURCE_TABLE 2 109 #define PE_EXCEPTION_TABLE 3 110 #define PE_CERTIFICATE_TABLE 4 111 #define PE_BASE_RELOCATION_TABLE 5 112 #define PE_DEBUG_DATA 6 113 #define PE_ARCHITECTURE 7 114 #define PE_GLOBAL_PTR 8 115 #define PE_TLS_TABLE 9 116 #define PE_LOAD_CONFIG_TABLE 10 117 #define PE_BOUND_IMPORT_TABLE 11 118 #define PE_IMPORT_ADDRESS_TABLE 12 119 #define PE_DELAY_IMPORT_DESCRIPTOR 13 120 #define PE_CLR_RUNTIME_HEADER 14 121 /* DataDirectory[15] is currently reserved, so no define. */ 122 #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16 123 124 /* Extra structure used in debug directory. */ 125 struct internal_IMAGE_DEBUG_DIRECTORY 126 { 127 unsigned long Characteristics; 128 unsigned long TimeDateStamp; 129 unsigned short MajorVersion; 130 unsigned short MinorVersion; 131 unsigned long Type; 132 unsigned long SizeOfData; 133 unsigned long AddressOfRawData; 134 unsigned long PointerToRawData; 135 }; 136 137 #define PE_IMAGE_DEBUG_TYPE_UNKNOWN 0 138 #define PE_IMAGE_DEBUG_TYPE_COFF 1 139 #define PE_IMAGE_DEBUG_TYPE_CODEVIEW 2 140 #define PE_IMAGE_DEBUG_TYPE_FPO 3 141 #define PE_IMAGE_DEBUG_TYPE_MISC 4 142 #define PE_IMAGE_DEBUG_TYPE_EXCEPTION 5 143 #define PE_IMAGE_DEBUG_TYPE_FIXUP 6 144 #define PE_IMAGE_DEBUG_TYPE_OMAP_TO_SRC 7 145 #define PE_IMAGE_DEBUG_TYPE_OMAP_FROM_SRC 8 146 #define PE_IMAGE_DEBUG_TYPE_BORLAND 9 147 #define PE_IMAGE_DEBUG_TYPE_RESERVED10 10 148 #define PE_IMAGE_DEBUG_TYPE_CLSID 11 149 #define PE_IMAGE_DEBUG_TYPE_VC_FEATURE 12 150 #define PE_IMAGE_DEBUG_TYPE_POGO 13 151 #define PE_IMAGE_DEBUG_TYPE_ILTCG 14 152 #define PE_IMAGE_DEBUG_TYPE_MPX 15 153 #define PE_IMAGE_DEBUG_TYPE_REPRO 16 154 155 /* Extra structure for a codeview debug record */ 156 #define CV_INFO_SIGNATURE_LENGTH 16 157 158 typedef struct _CODEVIEW_INFO 159 { 160 unsigned long CVSignature; 161 char Signature[CV_INFO_SIGNATURE_LENGTH]; 162 unsigned int SignatureLength; 163 unsigned long Age; 164 /* char PdbFileName[]; */ 165 } CODEVIEW_INFO; 166 167 /* Default image base for NT. */ 168 #define NT_EXE_IMAGE_BASE 0x400000 169 #define NT_DLL_IMAGE_BASE 0x10000000 170 171 /* Default image base for BeOS. */ 172 #define BEOS_EXE_IMAGE_BASE 0x80000000 173 #define BEOS_DLL_IMAGE_BASE 0x10000000 174 175 /* Extra stuff in a PE aouthdr */ 176 177 #define PE_DEF_SECTION_ALIGNMENT 0x1000 178 #ifndef PE_DEF_FILE_ALIGNMENT 179 # define PE_DEF_FILE_ALIGNMENT 0x200 180 #endif 181 182 struct internal_extra_pe_aouthdr 183 { 184 /* FIXME: The following entries are in AOUTHDR. But they aren't 185 available internally in bfd. We add them here so that objdump 186 can dump them. */ 187 /* The state of the image file. */ 188 short Magic; 189 /* Linker major version number. */ 190 char MajorLinkerVersion; 191 /* Linker minor version number. */ 192 char MinorLinkerVersion; 193 /* Total size of all code sections. */ 194 bfd_vma SizeOfCode; 195 /* Total size of all initialized data sections. */ 196 bfd_vma SizeOfInitializedData; 197 /* Total size of all uninitialized data sections. */ 198 bfd_vma SizeOfUninitializedData; 199 /* Address of entry point relative to image base. */ 200 bfd_vma AddressOfEntryPoint; 201 /* Address of the first code section relative to image base. */ 202 bfd_vma BaseOfCode; 203 /* Address of the first data section relative to image base. */ 204 bfd_vma BaseOfData; 205 206 /* PE stuff */ 207 bfd_vma ImageBase; /* Address of specific location in memory that 208 file is located, NT default 0x10000. */ 209 210 uint32_t SectionAlignment; /* Section alignment default 0x1000. */ 211 uint32_t FileAlignment; /* File alignment default 0x200. */ 212 short MajorOperatingSystemVersion; /* Minimum version of the operating. */ 213 short MinorOperatingSystemVersion; /* System req'd for exe, default 1. */ 214 short MajorImageVersion; /* User defineable field to store version of */ 215 short MinorImageVersion; /* exe or dll being created, default to 0. */ 216 short MajorSubsystemVersion; /* Minimum subsystem version required to */ 217 short MinorSubsystemVersion; /* run exe; default to 3.1. */ 218 uint32_t Reserved1; /* Seems to be 0. */ 219 uint32_t SizeOfImage; /* Size of memory to allocate for prog. */ 220 uint32_t SizeOfHeaders; /* Size of PE header and section table. */ 221 uint32_t CheckSum; /* Set to 0. */ 222 short Subsystem; 223 224 /* Type of subsystem exe uses for user interface, 225 possible values: 226 1 - NATIVE Doesn't require a subsystem 227 2 - WINDOWS_GUI runs in Windows GUI subsystem 228 3 - WINDOWS_CUI runs in Windows char sub. (console app) 229 5 - OS2_CUI runs in OS/2 character subsystem 230 7 - POSIX_CUI runs in Posix character subsystem. */ 231 unsigned short DllCharacteristics; /* flags for DLL init. */ 232 bfd_vma SizeOfStackReserve; /* Amount of memory to reserve. */ 233 bfd_vma SizeOfStackCommit; /* Amount of memory initially committed for 234 initial thread's stack, default 0x1000. */ 235 bfd_vma SizeOfHeapReserve; /* Amount of virtual memory to reserve and */ 236 bfd_vma SizeOfHeapCommit; /* commit, don't know what to defaut it to. */ 237 uint32_t LoaderFlags; /* Can probably set to 0. */ 238 uint32_t NumberOfRvaAndSizes; /* Number of entries in next entry, 16. */ 239 IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES]; 240 }; 241 242 /********************** AOUT "OPTIONAL HEADER" **********************/ 243 struct internal_aouthdr 244 { 245 short magic; /* type of file */ 246 short vstamp; /* version stamp */ 247 bfd_vma tsize; /* text size in bytes, padded to FW bdry*/ 248 bfd_vma dsize; /* initialized data " " */ 249 bfd_vma bsize; /* uninitialized data " " */ 250 bfd_vma entry; /* entry pt. */ 251 bfd_vma text_start; /* base of text used for this file */ 252 bfd_vma data_start; /* base of data used for this file */ 253 254 /* RS/6000 stuff */ 255 bfd_vma o_toc; /* address of TOC */ 256 short o_snentry; /* section number for entry point */ 257 short o_sntext; /* section number for text */ 258 short o_sndata; /* section number for data */ 259 short o_sntoc; /* section number for toc */ 260 short o_snloader; /* section number for loader section */ 261 short o_snbss; /* section number for bss */ 262 short o_algntext; /* max alignment for text */ 263 short o_algndata; /* max alignment for data */ 264 short o_modtype; /* Module type field, 1R,RE,RO */ 265 short o_cputype; /* Encoded CPU type */ 266 bfd_vma o_maxstack; /* max stack size allowed. */ 267 bfd_vma o_maxdata; /* max data size allowed. */ 268 269 /* ECOFF stuff */ 270 bfd_vma bss_start; /* Base of bss section. */ 271 bfd_vma gp_value; /* GP register value. */ 272 unsigned long gprmask; /* General registers used. */ 273 unsigned long cprmask[4]; /* Coprocessor registers used. */ 274 unsigned long fprmask; /* Floating pointer registers used. */ 275 276 /* Apollo stuff */ 277 long o_inlib; /* inlib data */ 278 long o_sri; /* Static Resource Information */ 279 long vid[2]; /* Version id */ 280 281 struct internal_extra_pe_aouthdr pe; 282 }; 283 284 /********************** STORAGE CLASSES **********************/ 285 286 /* This used to be defined as -1, but now n_sclass is unsigned. */ 287 #define C_EFCN 0xff /* physical end of function */ 288 #define C_NULL 0 289 #define C_AUTO 1 /* automatic variable */ 290 #define C_EXT 2 /* external symbol */ 291 #define C_STAT 3 /* static */ 292 #define C_REG 4 /* register variable */ 293 #define C_EXTDEF 5 /* external definition */ 294 #define C_LABEL 6 /* label */ 295 #define C_ULABEL 7 /* undefined label */ 296 #define C_MOS 8 /* member of structure */ 297 #define C_ARG 9 /* function argument */ 298 #define C_STRTAG 10 /* structure tag */ 299 #define C_MOU 11 /* member of union */ 300 #define C_UNTAG 12 /* union tag */ 301 #define C_TPDEF 13 /* type definition */ 302 #define C_USTATIC 14 /* undefined static */ 303 #define C_ENTAG 15 /* enumeration tag */ 304 #define C_MOE 16 /* member of enumeration */ 305 #define C_REGPARM 17 /* register parameter */ 306 #define C_FIELD 18 /* bit field */ 307 #define C_AUTOARG 19 /* auto argument */ 308 #define C_LASTENT 20 /* dummy entry (end of block) */ 309 #define C_BLOCK 100 /* ".bb" or ".eb" */ 310 #define C_FCN 101 /* ".bf" or ".ef" */ 311 #define C_EOS 102 /* end of structure */ 312 #define C_FILE 103 /* file name */ 313 #define C_LINE 104 /* line # reformatted as symbol table entry */ 314 #define C_ALIAS 105 /* duplicate tag */ 315 #define C_HIDDEN 106 /* ext symbol in dmert public lib */ 316 #define C_WEAKEXT 127 /* weak symbol -- GNU extension. */ 317 318 /* New storage classes for TI COFF */ 319 #define C_UEXT 19 /* Tentative external definition */ 320 #define C_STATLAB 20 /* Static load time label */ 321 #define C_EXTLAB 21 /* External load time label */ 322 #define C_SYSTEM 23 /* System Wide variable */ 323 324 /* New storage classes for WINDOWS_NT */ 325 #define C_SECTION 104 /* section name */ 326 #define C_NT_WEAK 105 /* weak external */ 327 328 /* New storage classes for 80960 */ 329 330 /* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */ 331 #define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */ 332 333 #define C_SCALL 107 /* Procedure reachable via system call */ 334 #define C_LEAFEXT 108 /* External leaf */ 335 #define C_LEAFSTAT 113 /* Static leaf */ 336 #define C_OPTVAR 109 /* Optimized variable */ 337 #define C_DEFINE 110 /* Preprocessor #define */ 338 #define C_PRAGMA 111 /* Advice to compiler or linker */ 339 #define C_SEGMENT 112 /* 80960 segment name */ 340 341 /* New storage classes for RS/6000 */ 342 #define C_HIDEXT 107 /* Un-named external symbol */ 343 #define C_BINCL 108 /* Marks beginning of include file */ 344 #define C_EINCL 109 /* Marks ending of include file */ 345 #define C_AIX_WEAKEXT 111 /* AIX definition of C_WEAKEXT. */ 346 347 #define C_NULL_VALUE 0x00de1e00 /* Value for a C_NULL deleted entry. */ 348 349 #if defined _AIX52 || defined AIX_WEAK_SUPPORT 350 #undef C_WEAKEXT 351 #define C_WEAKEXT C_AIX_WEAKEXT 352 #endif 353 354 /* storage classes for stab symbols for RS/6000 */ 355 #define C_GSYM (0x80) 356 #define C_LSYM (0x81) 357 #define C_PSYM (0x82) 358 #define C_RSYM (0x83) 359 #define C_RPSYM (0x84) 360 #define C_STSYM (0x85) 361 #define C_TCSYM (0x86) 362 #define C_BCOMM (0x87) 363 #define C_ECOML (0x88) 364 #define C_ECOMM (0x89) 365 #define C_DECL (0x8c) 366 #define C_ENTRY (0x8d) 367 #define C_FUN (0x8e) 368 #define C_BSTAT (0x8f) 369 #define C_ESTAT (0x90) 370 #define C_GTLS (0x97) 371 #define C_STTLS (0x98) 372 373 /* Storage classes for Thumb symbols */ 374 #define C_THUMBEXT (128 + C_EXT) /* 130 */ 375 #define C_THUMBSTAT (128 + C_STAT) /* 131 */ 376 #define C_THUMBLABEL (128 + C_LABEL) /* 134 */ 377 #define C_THUMBEXTFUNC (C_THUMBEXT + 20) /* 150 */ 378 #define C_THUMBSTATFUNC (C_THUMBSTAT + 20) /* 151 */ 379 380 /* True if XCOFF symbols of class CLASS have auxillary csect information. */ 381 #define CSECT_SYM_P(CLASS) \ 382 ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT) 383 384 /********************** SECTION HEADER **********************/ 385 386 #define SCNNMLEN (8) 387 388 struct internal_scnhdr 389 { 390 char s_name[SCNNMLEN] ATTRIBUTE_NONSTRING; /* section name */ 391 392 /* Physical address, aliased s_nlib. 393 In the pei format, this field is the virtual section size 394 (the size of the section after being loaded int memory), 395 NOT the physical address. */ 396 bfd_vma s_paddr; 397 398 bfd_vma s_vaddr; /* virtual address */ 399 bfd_vma s_size; /* section size */ 400 bfd_vma s_scnptr; /* file ptr to raw data for section */ 401 bfd_vma s_relptr; /* file ptr to relocation */ 402 bfd_vma s_lnnoptr; /* file ptr to line numbers */ 403 unsigned long s_nreloc; /* number of relocation entries */ 404 unsigned long s_nlnno; /* number of line number entries*/ 405 long s_flags; /* flags */ 406 unsigned char s_page; /* TI COFF load page */ 407 }; 408 409 /* s_flags "type". */ 410 #define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */ 411 #define STYP_DSECT (0x0001) /* "dummy": relocated only*/ 412 #define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */ 413 #define STYP_GROUP (0x0004) /* "grouped": formed of input sections */ 414 #define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */ 415 #define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated, 416 loaded; reloc & lineno entries processed normally */ 417 #define STYP_TEXT (0x0020) /* section contains text only */ 418 #define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile 419 will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will 420 update all process invocations. */ 421 #define STYP_DATA (0x0040) /* section contains data only */ 422 #define STYP_BSS (0x0080) /* section contains bss only */ 423 #define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */ 424 #define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */ 425 #define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */ 426 #define STYP_LIB (0x0800) /* for .lib: same as INFO */ 427 #define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */ 428 #define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions 429 wherever padding is necessary and there is a 430 word of contiguous bytes beginning on a word 431 boundary. */ 432 433 #define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */ 434 435 436 /********************** LINE NUMBERS **********************/ 437 438 /* 1 line number entry for every "breakpointable" source line in a section. 439 Line numbers are grouped on a per function basis; first entry in a function 440 grouping will have l_lnno = 0 and in place of physical address will be the 441 symbol table index of the function name. */ 442 443 struct internal_lineno 444 { 445 union 446 { 447 bfd_signed_vma l_symndx; /* function name symbol index, iff l_lnno == 0*/ 448 bfd_signed_vma l_paddr; /* (physical) address of line number */ 449 } l_addr; 450 unsigned long l_lnno; /* line number */ 451 }; 452 453 /********************** SYMBOLS **********************/ 454 455 #define SYMNMLEN 8 /* # characters in a symbol name */ 456 #define FILNMLEN 14 /* # characters in a file name */ 457 #define DIMNUM 4 /* # array dimensions in auxiliary entry */ 458 459 struct internal_syment 460 { 461 union 462 { 463 char _n_name[SYMNMLEN] ATTRIBUTE_NONSTRING; /* old COFF version */ 464 struct 465 { 466 bfd_hostptr_t _n_zeroes; /* new == 0 */ 467 bfd_hostptr_t _n_offset; /* offset into string table */ 468 } _n_n; 469 char *_n_nptr[2]; /* allows for overlaying */ 470 } _n; 471 bfd_vma n_value; /* value of symbol */ 472 int n_scnum; /* section number */ 473 unsigned short n_flags; /* copy of flags from filhdr */ 474 unsigned short n_type; /* type and derived type */ 475 unsigned char n_sclass; /* storage class */ 476 unsigned char n_numaux; /* number of aux. entries */ 477 }; 478 479 #define n_name _n._n_name 480 #define n_zeroes _n._n_n._n_zeroes 481 #define n_offset _n._n_n._n_offset 482 483 /* Relocatable symbols have number of the section in which they are defined, 484 or one of the following: */ 485 486 #define N_UNDEF ((int)0) /* undefined symbol */ 487 #define N_ABS ((int)-1) /* value of symbol is absolute */ 488 #define N_DEBUG ((int)-2) /* debugging symbol -- value is meaningless */ 489 #define N_TV ((int)-3) /* indicates symbol needs preload transfer vector */ 490 #define P_TV ((int)-4) /* indicates symbol needs postload transfer vector*/ 491 492 /* Type of a symbol, in low N bits of the word. */ 493 494 #define T_NULL 0 495 #define T_VOID 1 /* function argument (only used by compiler) */ 496 #define T_CHAR 2 /* character */ 497 #define T_SHORT 3 /* short integer */ 498 #define T_INT 4 /* integer */ 499 #define T_LONG 5 /* long integer */ 500 #define T_FLOAT 6 /* floating point */ 501 #define T_DOUBLE 7 /* double word */ 502 #define T_STRUCT 8 /* structure */ 503 #define T_UNION 9 /* union */ 504 #define T_ENUM 10 /* enumeration */ 505 #define T_MOE 11 /* member of enumeration*/ 506 #define T_UCHAR 12 /* unsigned character */ 507 #define T_USHORT 13 /* unsigned short */ 508 #define T_UINT 14 /* unsigned integer */ 509 #define T_ULONG 15 /* unsigned long */ 510 #define T_LNGDBL 16 /* long double */ 511 512 /* Derived types, in n_type. */ 513 514 #define DT_NON (0) /* no derived type */ 515 #define DT_PTR (1) /* pointer */ 516 #define DT_FCN (2) /* function */ 517 #define DT_ARY (3) /* array */ 518 519 #define BTYPE(x) ((x) & N_BTMASK) 520 #define DTYPE(x) (((x) & N_TMASK) >> N_BTSHFT) 521 522 #define ISPTR(x) \ 523 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT)) 524 #define ISFCN(x) \ 525 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT)) 526 #define ISARY(x) \ 527 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT)) 528 #define ISTAG(x) \ 529 ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG) 530 #define DECREF(x) \ 531 ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK)) 532 533 union internal_auxent 534 { 535 struct 536 { 537 538 union 539 { 540 long l; /* str, un, or enum tag indx */ 541 struct coff_ptr_struct *p; 542 } x_tagndx; 543 544 union 545 { 546 struct 547 { 548 unsigned short x_lnno; /* declaration line number */ 549 unsigned short x_size; /* str/union/array size */ 550 } x_lnsz; 551 long x_fsize; /* size of function */ 552 } x_misc; 553 554 union 555 { 556 struct 557 { /* if ISFCN, tag, or .bb */ 558 bfd_signed_vma x_lnnoptr; /* ptr to fcn line # */ 559 union 560 { /* entry ndx past block end */ 561 long l; 562 struct coff_ptr_struct *p; 563 } x_endndx; 564 } x_fcn; 565 566 struct 567 { /* if ISARY, up to 4 dimen. */ 568 unsigned short x_dimen[DIMNUM]; 569 } x_ary; 570 } x_fcnary; 571 572 unsigned short x_tvndx; /* tv index */ 573 } x_sym; 574 575 union 576 { 577 /* PR 17754: We use to FILNMLEN for the size of the x_fname 578 array, but that cause problems as PE targets use a larger 579 value. We cannot use their definition of EFILNMLEN as this 580 header can be used without including any PE headers. */ 581 char x_fname[20]; 582 struct 583 { 584 long x_zeroes; 585 long x_offset; 586 } x_n; 587 } x_file; 588 589 struct 590 { 591 long x_scnlen; /* section length */ 592 unsigned short x_nreloc; /* # relocation entries */ 593 unsigned short x_nlinno; /* # line numbers */ 594 unsigned long x_checksum; /* section COMDAT checksum for PE */ 595 unsigned short x_associated; /* COMDAT associated section index for PE */ 596 unsigned char x_comdat; /* COMDAT selection number for PE */ 597 } x_scn; 598 599 struct 600 { 601 long x_tvfill; /* tv fill value */ 602 unsigned short x_tvlen; /* length of .tv */ 603 unsigned short x_tvran[2]; /* tv range */ 604 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ 605 606 /****************************************** 607 * RS/6000-specific auxent - last auxent for every external symbol 608 ******************************************/ 609 struct 610 { 611 union 612 { /* csect length or enclosing csect */ 613 bfd_signed_vma l; 614 struct coff_ptr_struct *p; 615 } x_scnlen; 616 long x_parmhash; /* parm type hash index */ 617 unsigned short x_snhash; /* sect num with parm hash */ 618 unsigned char x_smtyp; /* symbol align and type */ 619 /* 0-4 - Log 2 of alignment */ 620 /* 5-7 - symbol type */ 621 unsigned char x_smclas; /* storage mapping class */ 622 long x_stab; /* dbx stab info index */ 623 unsigned short x_snstab; /* sect num with dbx stab */ 624 } x_csect; /* csect definition information */ 625 626 /* x_smtyp values: */ 627 628 #define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */ 629 #define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */ 630 /* Symbol type values: */ 631 #define XTY_ER 0 /* External reference */ 632 #define XTY_SD 1 /* Csect definition */ 633 #define XTY_LD 2 /* Label definition */ 634 #define XTY_CM 3 /* .BSS */ 635 #define XTY_EM 4 /* Error message */ 636 #define XTY_US 5 /* "Reserved for internal use" */ 637 638 /* x_smclas values: */ 639 640 #define XMC_PR 0 /* Read-only program code */ 641 #define XMC_RO 1 /* Read-only constant */ 642 #define XMC_DB 2 /* Read-only debug dictionary table */ 643 #define XMC_TC 3 /* Read-write general TOC entry */ 644 #define XMC_UA 4 /* Read-write unclassified */ 645 #define XMC_RW 5 /* Read-write data */ 646 #define XMC_GL 6 /* Read-only global linkage */ 647 #define XMC_XO 7 /* Read-only extended operation */ 648 #define XMC_SV 8 /* Read-only supervisor call */ 649 #define XMC_BS 9 /* Read-write BSS */ 650 #define XMC_DS 10 /* Read-write descriptor csect */ 651 #define XMC_UC 11 /* Read-write unnamed Fortran common */ 652 #define XMC_TI 12 /* Read-only traceback index csect */ 653 #define XMC_TB 13 /* Read-only traceback table csect */ 654 /* 14 ??? */ 655 #define XMC_TC0 15 /* Read-write TOC anchor */ 656 #define XMC_TD 16 /* Read-write data in TOC */ 657 }; 658 659 /********************** RELOCATION DIRECTIVES **********************/ 660 661 struct internal_reloc 662 { 663 bfd_vma r_vaddr; /* Virtual address of reference */ 664 long r_symndx; /* Index into symbol table */ 665 unsigned short r_type; /* Relocation type */ 666 unsigned char r_size; /* Used by RS/6000 and ECOFF */ 667 unsigned char r_extern; /* Used by ECOFF */ 668 unsigned long r_offset; /* Used by Alpha ECOFF, SPARC, others */ 669 }; 670 671 /* X86-64 relocations. */ 672 #define R_AMD64_ABS 0 /* Reference is absolute, no relocation is necessary. */ 673 #define R_AMD64_DIR64 1 /* 64-bit address (VA). */ 674 #define R_AMD64_DIR32 2 /* 32-bit address (VA) R_DIR32. */ 675 #define R_AMD64_IMAGEBASE 3 /* 32-bit absolute ref w/o base R_IMAGEBASE. */ 676 #define R_AMD64_PCRLONG 4 /* 32-bit relative address from byte following reloc R_PCRLONG. */ 677 #define R_AMD64_PCRLONG_1 5 /* 32-bit relative address from byte distance 1 from reloc. */ 678 #define R_AMD64_PCRLONG_2 6 /* 32-bit relative address from byte distance 2 from reloc. */ 679 #define R_AMD64_PCRLONG_3 7 /* 32-bit relative address from byte distance 3 from reloc. */ 680 #define R_AMD64_PCRLONG_4 8 /* 32-bit relative address from byte distance 4 from reloc. */ 681 #define R_AMD64_PCRLONG_5 9 /* 32-bit relative address from byte distance 5 from reloc. */ 682 #define R_AMD64_SECTION 10 /* Section index. */ 683 #define R_AMD64_SECREL 11 /* 32 bit offset from base of section containing target R_SECREL. */ 684 #define R_AMD64_SECREL7 12 /* 7 bit unsigned offset from base of section containing target. */ 685 #define R_AMD64_TOKEN 13 /* 32 bit metadata token. */ 686 #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. */ 687 688 /* i386 Relocations. */ 689 690 #define R_DIR16 1 691 #define R_REL24 5 692 #define R_DIR32 6 693 #define R_IMAGEBASE 7 694 #define R_SECREL32 11 695 #define R_RELBYTE 15 696 #define R_RELWORD 16 697 #define R_RELLONG 17 698 #define R_PCRBYTE 18 699 #define R_PCRWORD 19 700 #define R_PCRLONG 20 701 #define R_PCR24 21 702 #define R_IPRSHORT 24 703 #define R_IPRLONG 26 704 #define R_GETSEG 29 705 #define R_GETPA 30 706 #define R_TAGWORD 31 707 #define R_JUMPTARG 32 /* strange 29k 00xx00xx reloc */ 708 #define R_PARTLS16 32 709 #define R_PARTMS8 33 710 711 #define R_PCR16L 128 712 #define R_PCR26L 129 713 #define R_VRT16 130 714 #define R_HVRT16 131 715 #define R_LVRT16 132 716 #define R_VRT32 133 717 718 719 /* This reloc identifies mov.b instructions with a 16bit absolute 720 address. The linker tries to turn insns with this reloc into 721 an absolute 8-bit address. */ 722 #define R_MOV16B1 0x41 723 724 /* This reloc identifies mov.b instructions which had a 16bit 725 absolute address which have been shortened into a 8-bit 726 absolute address. */ 727 #define R_MOV16B2 0x42 728 729 /* This reloc identifies jmp insns with a 16bit target address; 730 the linker tries to turn these insns into bra insns with 731 an 8bit pc-relative target. */ 732 #define R_JMP1 0x43 733 734 /* This reloc identifies a bra with an 8-bit pc-relative 735 target that was formerly a jmp insn with a 16bit target. */ 736 #define R_JMP2 0x44 737 738 /* ??? */ 739 #define R_RELLONG_NEG 0x45 740 741 /* This reloc identifies jmp insns with a 24bit target address; 742 the linker tries to turn these insns into bra insns with 743 an 8bit pc-relative target. */ 744 #define R_JMPL1 0x46 745 746 /* This reloc identifies a bra with an 8-bit pc-relative 747 target that was formerly a jmp insn with a 24bit target. */ 748 #define R_JMPL2 0x47 749 750 /* This reloc identifies mov.b instructions with a 24bit absolute 751 address. The linker tries to turn insns with this reloc into 752 an absolute 8-bit address. */ 753 754 #define R_MOV24B1 0x48 755 756 /* This reloc identifies mov.b instructions which had a 24bit 757 absolute address which have been shortened into a 8-bit 758 absolute address. */ 759 #define R_MOV24B2 0x49 760 761 /* An h8300 memory indirect jump/call. Forces the address of the jump/call 762 target into the function vector (in page zero), and the address of the 763 vector entry to be placed in the jump/call instruction. */ 764 #define R_MEM_INDIRECT 0x4a 765 766 /* This reloc identifies a 16bit pc-relative branch target which was 767 shortened into an 8bit pc-relative branch target. */ 768 #define R_PCRWORD_B 0x4b 769 770 /* This reloc identifies mov.[wl] instructions with a 32/24 bit 771 absolute address; the linker may turn this into a mov.[wl] 772 insn with a 16bit absolute address. */ 773 #define R_MOVL1 0x4c 774 775 /* This reloc identifies mov.[wl] insns which formerly had 776 a 32/24bit absolute address and now have a 16bit absolute address. */ 777 #define R_MOVL2 0x4d 778 779 /* This reloc identifies a bCC:8 which will have it's condition 780 inverted and its target redirected to the target of the branch 781 in the following insn. */ 782 #define R_BCC_INV 0x4e 783 784 /* This reloc identifies a jmp instruction that has been deleted. */ 785 #define R_JMP_DEL 0x4f 786 787 /* Z8k modes */ 788 #define R_IMM16 0x01 /* 16 bit abs */ 789 #define R_JR 0x02 /* jr 8 bit disp */ 790 #define R_IMM4L 0x23 /* low nibble */ 791 #define R_IMM8 0x22 /* 8 bit abs */ 792 #define R_IMM32 R_RELLONG /* 32 bit abs */ 793 #define R_CALL R_DA /* Absolute address which could be a callr */ 794 #define R_JP R_DA /* Absolute address which could be a jp */ 795 #define R_REL16 0x04 /* 16 bit PC rel */ 796 #define R_CALLR 0x05 /* callr 12 bit disp */ 797 #define R_SEG 0x10 /* set if in segmented mode */ 798 #define R_IMM4H 0x24 /* high nibble */ 799 #define R_DISP7 0x25 /* djnz displacement */ 800 801 /* Z80 modes */ 802 #define R_OFF8 0x32 /* 8 bit signed abs, for (i[xy]+d) */ 803 #define R_IMM24 0x33 /* 24 bit abs */ 804 #define R_IMM16BE 0x3A /* 16 bit abs, big endian */ 805 /* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */ 806 #define R_BYTE0 0x34 /* first (lowest) 8 bits of multibyte value */ 807 #define R_BYTE1 0x35 /* second 8 bits of multibyte value */ 808 #define R_BYTE2 0x36 /* third 8 bits of multibyte value */ 809 #define R_BYTE3 0x37 /* fourth (highest) 8 bits of multibyte value */ 810 #define R_WORD0 0x38 /* lowest 16 bits of 32 or 24 bit value */ 811 #define R_WORD1 0x39 /* highest 16 bits of 32 or 24 bit value */ 812 813 #endif /* GNU_COFF_INTERNAL_H */ 814