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 1999, 2000, 2001, 2002, 2003, 2004. 2005, 2006, 2007, 2009 5 Free Software Foundation, Inc. 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 2 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, 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 long 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 short 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 /* Default image base for NT. */ 136 #define NT_EXE_IMAGE_BASE 0x400000 137 #define NT_DLL_IMAGE_BASE 0x10000000 138 139 /* Default image base for BeOS. */ 140 #define BEOS_EXE_IMAGE_BASE 0x80000000 141 #define BEOS_DLL_IMAGE_BASE 0x10000000 142 143 /* Extra stuff in a PE aouthdr */ 144 145 #define PE_DEF_SECTION_ALIGNMENT 0x1000 146 #ifndef PE_DEF_FILE_ALIGNMENT 147 # define PE_DEF_FILE_ALIGNMENT 0x200 148 #endif 149 150 struct internal_extra_pe_aouthdr 151 { 152 /* FIXME: The following entries are in AOUTHDR. But they aren't 153 available internally in bfd. We add them here so that objdump 154 can dump them. */ 155 /* The state of the image file */ 156 short Magic; 157 /* Linker major version number */ 158 char MajorLinkerVersion; 159 /* Linker minor version number */ 160 char MinorLinkerVersion; 161 /* Total size of all code sections */ 162 long SizeOfCode; 163 /* Total size of all initialized data sections */ 164 long SizeOfInitializedData; 165 /* Total size of all uninitialized data sections */ 166 long SizeOfUninitializedData; 167 /* Address of entry point relative to image base. */ 168 bfd_vma AddressOfEntryPoint; 169 /* Address of the first code section relative to image base. */ 170 bfd_vma BaseOfCode; 171 /* Address of the first data section relative to image base. */ 172 bfd_vma BaseOfData; 173 174 /* PE stuff */ 175 bfd_vma ImageBase; /* address of specific location in memory that 176 file is located, NT default 0x10000 */ 177 178 bfd_vma SectionAlignment; /* section alignment default 0x1000 */ 179 bfd_vma FileAlignment; /* file alignment default 0x200 */ 180 short MajorOperatingSystemVersion; /* minimum version of the operating */ 181 short MinorOperatingSystemVersion; /* system req'd for exe, default to 1*/ 182 short MajorImageVersion; /* user defineable field to store version of */ 183 short MinorImageVersion; /* exe or dll being created, default to 0 */ 184 short MajorSubsystemVersion; /* minimum subsystem version required to */ 185 short MinorSubsystemVersion; /* run exe; default to 3.1 */ 186 long Reserved1; /* seems to be 0 */ 187 long SizeOfImage; /* size of memory to allocate for prog */ 188 long SizeOfHeaders; /* size of PE header and section table */ 189 long CheckSum; /* set to 0 */ 190 short Subsystem; 191 192 /* type of subsystem exe uses for user interface, 193 possible values: 194 1 - NATIVE Doesn't require a subsystem 195 2 - WINDOWS_GUI runs in Windows GUI subsystem 196 3 - WINDOWS_CUI runs in Windows char sub. (console app) 197 5 - OS2_CUI runs in OS/2 character subsystem 198 7 - POSIX_CUI runs in Posix character subsystem */ 199 unsigned short DllCharacteristics; /* flags for DLL init */ 200 bfd_vma SizeOfStackReserve; /* amount of memory to reserve */ 201 bfd_vma SizeOfStackCommit; /* amount of memory initially committed for 202 initial thread's stack, default is 0x1000 */ 203 bfd_vma SizeOfHeapReserve; /* amount of virtual memory to reserve and */ 204 bfd_vma SizeOfHeapCommit; /* commit, don't know what to defaut it to */ 205 long LoaderFlags; /* can probably set to 0 */ 206 long NumberOfRvaAndSizes; /* number of entries in next entry, 16 */ 207 IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES]; 208 }; 209 210 /********************** AOUT "OPTIONAL HEADER" **********************/ 211 struct internal_aouthdr 212 { 213 short magic; /* type of file */ 214 short vstamp; /* version stamp */ 215 bfd_vma tsize; /* text size in bytes, padded to FW bdry*/ 216 bfd_vma dsize; /* initialized data " " */ 217 bfd_vma bsize; /* uninitialized data " " */ 218 bfd_vma entry; /* entry pt. */ 219 bfd_vma text_start; /* base of text used for this file */ 220 bfd_vma data_start; /* base of data used for this file */ 221 222 /* i960 stuff */ 223 unsigned long tagentries; /* number of tag entries to follow */ 224 225 /* RS/6000 stuff */ 226 bfd_vma o_toc; /* address of TOC */ 227 short o_snentry; /* section number for entry point */ 228 short o_sntext; /* section number for text */ 229 short o_sndata; /* section number for data */ 230 short o_sntoc; /* section number for toc */ 231 short o_snloader; /* section number for loader section */ 232 short o_snbss; /* section number for bss */ 233 short o_algntext; /* max alignment for text */ 234 short o_algndata; /* max alignment for data */ 235 short o_modtype; /* Module type field, 1R,RE,RO */ 236 short o_cputype; /* Encoded CPU type */ 237 bfd_vma o_maxstack; /* max stack size allowed. */ 238 bfd_vma o_maxdata; /* max data size allowed. */ 239 240 /* ECOFF stuff */ 241 bfd_vma bss_start; /* Base of bss section. */ 242 bfd_vma gp_value; /* GP register value. */ 243 unsigned long gprmask; /* General registers used. */ 244 unsigned long cprmask[4]; /* Coprocessor registers used. */ 245 unsigned long fprmask; /* Floating pointer registers used. */ 246 247 /* Apollo stuff */ 248 long o_inlib; /* inlib data */ 249 long o_sri; /* Static Resource Information */ 250 long vid[2]; /* Version id */ 251 252 struct internal_extra_pe_aouthdr pe; 253 }; 254 255 /********************** STORAGE CLASSES **********************/ 256 257 /* This used to be defined as -1, but now n_sclass is unsigned. */ 258 #define C_EFCN 0xff /* physical end of function */ 259 #define C_NULL 0 260 #define C_AUTO 1 /* automatic variable */ 261 #define C_EXT 2 /* external symbol */ 262 #define C_STAT 3 /* static */ 263 #define C_REG 4 /* register variable */ 264 #define C_EXTDEF 5 /* external definition */ 265 #define C_LABEL 6 /* label */ 266 #define C_ULABEL 7 /* undefined label */ 267 #define C_MOS 8 /* member of structure */ 268 #define C_ARG 9 /* function argument */ 269 #define C_STRTAG 10 /* structure tag */ 270 #define C_MOU 11 /* member of union */ 271 #define C_UNTAG 12 /* union tag */ 272 #define C_TPDEF 13 /* type definition */ 273 #define C_USTATIC 14 /* undefined static */ 274 #define C_ENTAG 15 /* enumeration tag */ 275 #define C_MOE 16 /* member of enumeration */ 276 #define C_REGPARM 17 /* register parameter */ 277 #define C_FIELD 18 /* bit field */ 278 #define C_AUTOARG 19 /* auto argument */ 279 #define C_LASTENT 20 /* dummy entry (end of block) */ 280 #define C_BLOCK 100 /* ".bb" or ".eb" */ 281 #define C_FCN 101 /* ".bf" or ".ef" */ 282 #define C_EOS 102 /* end of structure */ 283 #define C_FILE 103 /* file name */ 284 #define C_LINE 104 /* line # reformatted as symbol table entry */ 285 #define C_ALIAS 105 /* duplicate tag */ 286 #define C_HIDDEN 106 /* ext symbol in dmert public lib */ 287 #define C_WEAKEXT 127 /* weak symbol -- GNU extension. */ 288 289 /* New storage classes for TI COFF */ 290 #define C_UEXT 19 /* Tentative external definition */ 291 #define C_STATLAB 20 /* Static load time label */ 292 #define C_EXTLAB 21 /* External load time label */ 293 #define C_SYSTEM 23 /* System Wide variable */ 294 295 /* New storage classes for WINDOWS_NT */ 296 #define C_SECTION 104 /* section name */ 297 #define C_NT_WEAK 105 /* weak external */ 298 299 /* New storage classes for 80960 */ 300 301 /* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */ 302 #define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */ 303 304 #define C_SCALL 107 /* Procedure reachable via system call */ 305 #define C_LEAFEXT 108 /* External leaf */ 306 #define C_LEAFSTAT 113 /* Static leaf */ 307 #define C_OPTVAR 109 /* Optimized variable */ 308 #define C_DEFINE 110 /* Preprocessor #define */ 309 #define C_PRAGMA 111 /* Advice to compiler or linker */ 310 #define C_SEGMENT 112 /* 80960 segment name */ 311 312 /* Storage classes for m88k */ 313 #define C_SHADOW 107 /* shadow symbol */ 314 #define C_VERSION 108 /* coff version symbol */ 315 316 /* New storage classes for RS/6000 */ 317 #define C_HIDEXT 107 /* Un-named external symbol */ 318 #define C_BINCL 108 /* Marks beginning of include file */ 319 #define C_EINCL 109 /* Marks ending of include file */ 320 #define C_AIX_WEAKEXT 111 /* AIX definition of C_WEAKEXT. */ 321 322 #if defined _AIX52 || defined AIX_WEAK_SUPPORT 323 #undef C_WEAKEXT 324 #define C_WEAKEXT C_AIX_WEAKEXT 325 #endif 326 327 /* storage classes for stab symbols for RS/6000 */ 328 #define C_GSYM (0x80) 329 #define C_LSYM (0x81) 330 #define C_PSYM (0x82) 331 #define C_RSYM (0x83) 332 #define C_RPSYM (0x84) 333 #define C_STSYM (0x85) 334 #define C_TCSYM (0x86) 335 #define C_BCOMM (0x87) 336 #define C_ECOML (0x88) 337 #define C_ECOMM (0x89) 338 #define C_DECL (0x8c) 339 #define C_ENTRY (0x8d) 340 #define C_FUN (0x8e) 341 #define C_BSTAT (0x8f) 342 #define C_ESTAT (0x90) 343 344 /* Storage classes for Thumb symbols */ 345 #define C_THUMBEXT (128 + C_EXT) /* 130 */ 346 #define C_THUMBSTAT (128 + C_STAT) /* 131 */ 347 #define C_THUMBLABEL (128 + C_LABEL) /* 134 */ 348 #define C_THUMBEXTFUNC (C_THUMBEXT + 20) /* 150 */ 349 #define C_THUMBSTATFUNC (C_THUMBSTAT + 20) /* 151 */ 350 351 /* True if XCOFF symbols of class CLASS have auxillary csect information. */ 352 #define CSECT_SYM_P(CLASS) \ 353 ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT) 354 355 /********************** SECTION HEADER **********************/ 356 357 #define SCNNMLEN (8) 358 359 struct internal_scnhdr 360 { 361 char s_name[SCNNMLEN]; /* section name */ 362 363 /* Physical address, aliased s_nlib. 364 In the pei format, this field is the virtual section size 365 (the size of the section after being loaded int memory), 366 NOT the physical address. */ 367 bfd_vma s_paddr; 368 369 bfd_vma s_vaddr; /* virtual address */ 370 bfd_vma s_size; /* section size */ 371 bfd_vma s_scnptr; /* file ptr to raw data for section */ 372 bfd_vma s_relptr; /* file ptr to relocation */ 373 bfd_vma s_lnnoptr; /* file ptr to line numbers */ 374 unsigned long s_nreloc; /* number of relocation entries */ 375 unsigned long s_nlnno; /* number of line number entries*/ 376 long s_flags; /* flags */ 377 long s_align; /* used on I960 */ 378 unsigned char s_page; /* TI COFF load page */ 379 }; 380 381 /* s_flags "type". */ 382 #define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */ 383 #define STYP_DSECT (0x0001) /* "dummy": relocated only*/ 384 #define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */ 385 #define STYP_GROUP (0x0004) /* "grouped": formed of input sections */ 386 #define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */ 387 #define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated, 388 loaded; reloc & lineno entries processed normally */ 389 #define STYP_TEXT (0x0020) /* section contains text only */ 390 #define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile 391 will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will 392 update all process invocations. */ 393 #define STYP_DATA (0x0040) /* section contains data only */ 394 #define STYP_BSS (0x0080) /* section contains bss only */ 395 #define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */ 396 #define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */ 397 #define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */ 398 #define STYP_LIB (0x0800) /* for .lib: same as INFO */ 399 #define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */ 400 #define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions 401 wherever padding is necessary and there is a 402 word of contiguous bytes beginning on a word 403 boundary. */ 404 405 #define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */ 406 407 408 /********************** LINE NUMBERS **********************/ 409 410 /* 1 line number entry for every "breakpointable" source line in a section. 411 Line numbers are grouped on a per function basis; first entry in a function 412 grouping will have l_lnno = 0 and in place of physical address will be the 413 symbol table index of the function name. */ 414 415 struct internal_lineno 416 { 417 union 418 { 419 bfd_signed_vma l_symndx; /* function name symbol index, iff l_lnno == 0*/ 420 bfd_signed_vma l_paddr; /* (physical) address of line number */ 421 } l_addr; 422 unsigned long l_lnno; /* line number */ 423 }; 424 425 /********************** SYMBOLS **********************/ 426 427 #define SYMNMLEN 8 /* # characters in a symbol name */ 428 #define FILNMLEN 14 /* # characters in a file name */ 429 #define DIMNUM 4 /* # array dimensions in auxiliary entry */ 430 431 struct internal_syment 432 { 433 union 434 { 435 char _n_name[SYMNMLEN]; /* old COFF version */ 436 struct 437 { 438 bfd_hostptr_t _n_zeroes; /* new == 0 */ 439 bfd_hostptr_t _n_offset; /* offset into string table */ 440 } _n_n; 441 char *_n_nptr[2]; /* allows for overlaying */ 442 } _n; 443 bfd_vma n_value; /* value of symbol */ 444 short n_scnum; /* section number */ 445 unsigned short n_flags; /* copy of flags from filhdr */ 446 unsigned short n_type; /* type and derived type */ 447 unsigned char n_sclass; /* storage class */ 448 unsigned char n_numaux; /* number of aux. entries */ 449 }; 450 451 #define n_name _n._n_name 452 #define n_zeroes _n._n_n._n_zeroes 453 #define n_offset _n._n_n._n_offset 454 455 /* Relocatable symbols have number of the section in which they are defined, 456 or one of the following: */ 457 458 #define N_UNDEF ((short)0) /* undefined symbol */ 459 #define N_ABS ((short)-1) /* value of symbol is absolute */ 460 #define N_DEBUG ((short)-2) /* debugging symbol -- value is meaningless */ 461 #define N_TV ((short)-3) /* indicates symbol needs preload transfer vector */ 462 #define P_TV ((short)-4) /* indicates symbol needs postload transfer vector*/ 463 464 /* Type of a symbol, in low N bits of the word. */ 465 466 #define T_NULL 0 467 #define T_VOID 1 /* function argument (only used by compiler) */ 468 #define T_CHAR 2 /* character */ 469 #define T_SHORT 3 /* short integer */ 470 #define T_INT 4 /* integer */ 471 #define T_LONG 5 /* long integer */ 472 #define T_FLOAT 6 /* floating point */ 473 #define T_DOUBLE 7 /* double word */ 474 #define T_STRUCT 8 /* structure */ 475 #define T_UNION 9 /* union */ 476 #define T_ENUM 10 /* enumeration */ 477 #define T_MOE 11 /* member of enumeration*/ 478 #define T_UCHAR 12 /* unsigned character */ 479 #define T_USHORT 13 /* unsigned short */ 480 #define T_UINT 14 /* unsigned integer */ 481 #define T_ULONG 15 /* unsigned long */ 482 #define T_LNGDBL 16 /* long double */ 483 484 /* Derived types, in n_type. */ 485 486 #define DT_NON (0) /* no derived type */ 487 #define DT_PTR (1) /* pointer */ 488 #define DT_FCN (2) /* function */ 489 #define DT_ARY (3) /* array */ 490 491 #define BTYPE(x) ((x) & N_BTMASK) 492 #define DTYPE(x) (((x) & N_TMASK) >> N_BTSHFT) 493 494 #define ISPTR(x) \ 495 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT)) 496 #define ISFCN(x) \ 497 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT)) 498 #define ISARY(x) \ 499 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT)) 500 #define ISTAG(x) \ 501 ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG) 502 #define DECREF(x) \ 503 ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK)) 504 505 union internal_auxent 506 { 507 struct 508 { 509 510 union 511 { 512 long l; /* str, un, or enum tag indx */ 513 struct coff_ptr_struct *p; 514 } x_tagndx; 515 516 union 517 { 518 struct 519 { 520 unsigned short x_lnno; /* declaration line number */ 521 unsigned short x_size; /* str/union/array size */ 522 } x_lnsz; 523 long x_fsize; /* size of function */ 524 } x_misc; 525 526 union 527 { 528 struct 529 { /* if ISFCN, tag, or .bb */ 530 bfd_signed_vma x_lnnoptr; /* ptr to fcn line # */ 531 union 532 { /* entry ndx past block end */ 533 long l; 534 struct coff_ptr_struct *p; 535 } x_endndx; 536 } x_fcn; 537 538 struct 539 { /* if ISARY, up to 4 dimen. */ 540 unsigned short x_dimen[DIMNUM]; 541 } x_ary; 542 } x_fcnary; 543 544 unsigned short x_tvndx; /* tv index */ 545 } x_sym; 546 547 union 548 { 549 char x_fname[FILNMLEN]; 550 struct 551 { 552 long x_zeroes; 553 long x_offset; 554 } x_n; 555 } x_file; 556 557 struct 558 { 559 long x_scnlen; /* section length */ 560 unsigned short x_nreloc; /* # relocation entries */ 561 unsigned short x_nlinno; /* # line numbers */ 562 unsigned long x_checksum; /* section COMDAT checksum for PE */ 563 unsigned short x_associated; /* COMDAT associated section index for PE */ 564 unsigned char x_comdat; /* COMDAT selection number for PE */ 565 } x_scn; 566 567 struct 568 { 569 long x_tvfill; /* tv fill value */ 570 unsigned short x_tvlen; /* length of .tv */ 571 unsigned short x_tvran[2]; /* tv range */ 572 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ 573 574 /****************************************** 575 * RS/6000-specific auxent - last auxent for every external symbol 576 ******************************************/ 577 struct 578 { 579 union 580 { /* csect length or enclosing csect */ 581 bfd_signed_vma l; 582 struct coff_ptr_struct *p; 583 } x_scnlen; 584 long x_parmhash; /* parm type hash index */ 585 unsigned short x_snhash; /* sect num with parm hash */ 586 unsigned char x_smtyp; /* symbol align and type */ 587 /* 0-4 - Log 2 of alignment */ 588 /* 5-7 - symbol type */ 589 unsigned char x_smclas; /* storage mapping class */ 590 long x_stab; /* dbx stab info index */ 591 unsigned short x_snstab; /* sect num with dbx stab */ 592 } x_csect; /* csect definition information */ 593 594 /* x_smtyp values: */ 595 596 #define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */ 597 #define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */ 598 /* Symbol type values: */ 599 #define XTY_ER 0 /* External reference */ 600 #define XTY_SD 1 /* Csect definition */ 601 #define XTY_LD 2 /* Label definition */ 602 #define XTY_CM 3 /* .BSS */ 603 #define XTY_EM 4 /* Error message */ 604 #define XTY_US 5 /* "Reserved for internal use" */ 605 606 /* x_smclas values: */ 607 608 #define XMC_PR 0 /* Read-only program code */ 609 #define XMC_RO 1 /* Read-only constant */ 610 #define XMC_DB 2 /* Read-only debug dictionary table */ 611 #define XMC_TC 3 /* Read-write general TOC entry */ 612 #define XMC_UA 4 /* Read-write unclassified */ 613 #define XMC_RW 5 /* Read-write data */ 614 #define XMC_GL 6 /* Read-only global linkage */ 615 #define XMC_XO 7 /* Read-only extended operation */ 616 #define XMC_SV 8 /* Read-only supervisor call */ 617 #define XMC_BS 9 /* Read-write BSS */ 618 #define XMC_DS 10 /* Read-write descriptor csect */ 619 #define XMC_UC 11 /* Read-write unnamed Fortran common */ 620 #define XMC_TI 12 /* Read-only traceback index csect */ 621 #define XMC_TB 13 /* Read-only traceback table csect */ 622 /* 14 ??? */ 623 #define XMC_TC0 15 /* Read-write TOC anchor */ 624 #define XMC_TD 16 /* Read-write data in TOC */ 625 626 /****************************************** 627 * I960-specific *2nd* aux. entry formats 628 ******************************************/ 629 struct 630 { 631 /* This is a very old typo that keeps getting propagated. */ 632 #define x_stdindx x_stindx 633 long x_stindx; /* sys. table entry */ 634 } x_sc; /* system call entry */ 635 636 struct 637 { 638 unsigned long x_balntry; /* BAL entry point */ 639 } x_bal; /* BAL-callable function */ 640 641 struct 642 { 643 unsigned long x_timestamp; /* time stamp */ 644 char x_idstring[20]; /* producer identity string */ 645 } x_ident; /* Producer ident info */ 646 647 }; 648 649 /********************** RELOCATION DIRECTIVES **********************/ 650 651 struct internal_reloc 652 { 653 bfd_vma r_vaddr; /* Virtual address of reference */ 654 long r_symndx; /* Index into symbol table */ 655 unsigned short r_type; /* Relocation type */ 656 unsigned char r_size; /* Used by RS/6000 and ECOFF */ 657 unsigned char r_extern; /* Used by ECOFF */ 658 unsigned long r_offset; /* Used by Alpha ECOFF, SPARC, others */ 659 }; 660 661 /* X86-64 relocations. */ 662 #define R_AMD64_ABS 0 /* Reference is absolute, no relocation is necessary. */ 663 #define R_AMD64_DIR64 1 /* 64-bit address (VA). */ 664 #define R_AMD64_DIR32 2 /* 32-bit address (VA) R_DIR32. */ 665 #define R_AMD64_IMAGEBASE 3 /* 32-bit absolute ref w/o base R_IMAGEBASE. */ 666 #define R_AMD64_PCRLONG 4 /* 32-bit relative address from byte following reloc R_PCRLONG. */ 667 #define R_AMD64_PCRLONG_1 5 /* 32-bit relative address from byte distance 1 from reloc. */ 668 #define R_AMD64_PCRLONG_2 6 /* 32-bit relative address from byte distance 2 from reloc. */ 669 #define R_AMD64_PCRLONG_3 7 /* 32-bit relative address from byte distance 3 from reloc. */ 670 #define R_AMD64_PCRLONG_4 8 /* 32-bit relative address from byte distance 4 from reloc. */ 671 #define R_AMD64_PCRLONG_5 9 /* 32-bit relative address from byte distance 5 from reloc. */ 672 #define R_AMD64_SECTION 10 /* Section index. */ 673 #define R_AMD64_SECREL 11 /* 32 bit offset from base of section containing target R_SECREL. */ 674 #define R_AMD64_SECREL7 12 /* 7 bit unsigned offset from base of section containing target. */ 675 #define R_AMD64_TOKEN 13 /* 32 bit metadata token. */ 676 #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. */ 677 678 /* i386 Relocations. */ 679 680 #define R_DIR16 1 681 #define R_REL24 5 682 #define R_DIR32 6 683 #define R_IMAGEBASE 7 684 #define R_SECREL32 11 685 #define R_RELBYTE 15 686 #define R_RELWORD 16 687 #define R_RELLONG 17 688 #define R_PCRBYTE 18 689 #define R_PCRWORD 19 690 #define R_PCRLONG 20 691 #define R_PCR24 21 692 #define R_IPRSHORT 24 693 #define R_IPRLONG 26 694 #define R_GETSEG 29 695 #define R_GETPA 30 696 #define R_TAGWORD 31 697 #define R_JUMPTARG 32 /* strange 29k 00xx00xx reloc */ 698 #define R_PARTLS16 32 699 #define R_PARTMS8 33 700 701 #define R_PCR16L 128 702 #define R_PCR26L 129 703 #define R_VRT16 130 704 #define R_HVRT16 131 705 #define R_LVRT16 132 706 #define R_VRT32 133 707 708 709 /* This reloc identifies mov.b instructions with a 16bit absolute 710 address. The linker tries to turn insns with this reloc into 711 an absolute 8-bit address. */ 712 #define R_MOV16B1 0x41 713 714 /* This reloc identifies mov.b instructions which had a 16bit 715 absolute address which have been shortened into a 8-bit 716 absolute address. */ 717 #define R_MOV16B2 0x42 718 719 /* This reloc identifies jmp insns with a 16bit target address; 720 the linker tries to turn these insns into bra insns with 721 an 8bit pc-relative target. */ 722 #define R_JMP1 0x43 723 724 /* This reloc identifies a bra with an 8-bit pc-relative 725 target that was formerly a jmp insn with a 16bit target. */ 726 #define R_JMP2 0x44 727 728 /* ??? */ 729 #define R_RELLONG_NEG 0x45 730 731 /* This reloc identifies jmp insns with a 24bit target address; 732 the linker tries to turn these insns into bra insns with 733 an 8bit pc-relative target. */ 734 #define R_JMPL1 0x46 735 736 /* This reloc identifies a bra with an 8-bit pc-relative 737 target that was formerly a jmp insn with a 24bit target. */ 738 #define R_JMPL2 0x47 739 740 /* This reloc identifies mov.b instructions with a 24bit absolute 741 address. The linker tries to turn insns with this reloc into 742 an absolute 8-bit address. */ 743 744 #define R_MOV24B1 0x48 745 746 /* This reloc identifies mov.b instructions which had a 24bit 747 absolute address which have been shortened into a 8-bit 748 absolute address. */ 749 #define R_MOV24B2 0x49 750 751 /* An h8300 memory indirect jump/call. Forces the address of the jump/call 752 target into the function vector (in page zero), and the address of the 753 vector entry to be placed in the jump/call instruction. */ 754 #define R_MEM_INDIRECT 0x4a 755 756 /* This reloc identifies a 16bit pc-relative branch target which was 757 shortened into an 8bit pc-relative branch target. */ 758 #define R_PCRWORD_B 0x4b 759 760 /* This reloc identifies mov.[wl] instructions with a 32/24 bit 761 absolute address; the linker may turn this into a mov.[wl] 762 insn with a 16bit absolute address. */ 763 #define R_MOVL1 0x4c 764 765 /* This reloc identifies mov.[wl] insns which formerly had 766 a 32/24bit absolute address and now have a 16bit absolute address. */ 767 #define R_MOVL2 0x4d 768 769 /* This reloc identifies a bCC:8 which will have it's condition 770 inverted and its target redirected to the target of the branch 771 in the following insn. */ 772 #define R_BCC_INV 0x4e 773 774 /* This reloc identifies a jmp instruction that has been deleted. */ 775 #define R_JMP_DEL 0x4f 776 777 /* Z8k modes */ 778 #define R_IMM16 0x01 /* 16 bit abs */ 779 #define R_JR 0x02 /* jr 8 bit disp */ 780 #define R_IMM4L 0x23 /* low nibble */ 781 #define R_IMM8 0x22 /* 8 bit abs */ 782 #define R_IMM32 R_RELLONG /* 32 bit abs */ 783 #define R_CALL R_DA /* Absolute address which could be a callr */ 784 #define R_JP R_DA /* Absolute address which could be a jp */ 785 #define R_REL16 0x04 /* 16 bit PC rel */ 786 #define R_CALLR 0x05 /* callr 12 bit disp */ 787 #define R_SEG 0x10 /* set if in segmented mode */ 788 #define R_IMM4H 0x24 /* high nibble */ 789 #define R_DISP7 0x25 /* djnz displacement */ 790 791 /* Z80 modes */ 792 #define R_OFF8 0x32 /* 8 bit signed abs, for (i[xy]+d) */ 793 #define R_IMM24 0x33 /* 24 bit abs */ 794 /* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */ 795 796 /* H8500 modes */ 797 798 #define R_H8500_IMM8 1 /* 8 bit immediate */ 799 #define R_H8500_IMM16 2 /* 16 bit immediate */ 800 #define R_H8500_PCREL8 3 /* 8 bit pcrel */ 801 #define R_H8500_PCREL16 4 /* 16 bit pcrel */ 802 #define R_H8500_HIGH8 5 /* high 8 bits of 24 bit address */ 803 #define R_H8500_LOW16 7 /* low 16 bits of 24 bit immediate */ 804 #define R_H8500_IMM24 6 /* 24 bit immediate */ 805 #define R_H8500_IMM32 8 /* 32 bit immediate */ 806 #define R_H8500_HIGH16 9 /* high 16 bits of 32 bit immediate */ 807 808 /* W65 modes */ 809 810 #define R_W65_ABS8 1 /* addr & 0xff */ 811 #define R_W65_ABS16 2 /* addr & 0xffff */ 812 #define R_W65_ABS24 3 /* addr & 0xffffff */ 813 814 #define R_W65_ABS8S8 4 /* (addr >> 8) & 0xff */ 815 #define R_W65_ABS8S16 5 /* (addr >> 16) & 0xff */ 816 817 #define R_W65_ABS16S8 6 /* (addr >> 8) & 0ffff */ 818 #define R_W65_ABS16S16 7 /* (addr >> 16) & 0ffff */ 819 820 #define R_W65_PCR8 8 821 #define R_W65_PCR16 9 822 823 #define R_W65_DP 10 /* direct page 8 bits only */ 824 825 #endif /* GNU_COFF_INTERNAL_H */ 826