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 2010 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 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 #ifndef GNU_COFF_INTERNAL_H 23 #define GNU_COFF_INTERNAL_H 1 24 25 /* First, make "signed char" work, even on old compilers. */ 26 #ifndef signed 27 #ifndef __STDC__ 28 #define signed /**/ 29 #endif 30 #endif 31 32 /********************** FILE HEADER **********************/ 33 34 /* extra stuff in a PE header. */ 35 36 struct internal_extra_pe_filehdr 37 { 38 /* DOS header data follows for PE stuff */ 39 unsigned short e_magic; /* Magic number, 0x5a4d */ 40 unsigned short e_cblp; /* Bytes on last page of file, 0x90 */ 41 unsigned short e_cp; /* Pages in file, 0x3 */ 42 unsigned short e_crlc; /* Relocations, 0x0 */ 43 unsigned short e_cparhdr; /* Size of header in paragraphs, 0x4 */ 44 unsigned short e_minalloc; /* Minimum extra paragraphs needed, 0x0 */ 45 unsigned short e_maxalloc; /* Maximum extra paragraphs needed, 0xFFFF */ 46 unsigned short e_ss; /* Initial (relative) SS value, 0x0 */ 47 unsigned short e_sp; /* Initial SP value, 0xb8 */ 48 unsigned short e_csum; /* Checksum, 0x0 */ 49 unsigned short e_ip; /* Initial IP value, 0x0 */ 50 unsigned short e_cs; /* Initial (relative) CS value, 0x0 */ 51 unsigned short e_lfarlc; /* File address of relocation table, 0x40 */ 52 unsigned short e_ovno; /* Overlay number, 0x0 */ 53 unsigned short e_res[4]; /* Reserved words, all 0x0 */ 54 unsigned short e_oemid; /* OEM identifier (for e_oeminfo), 0x0 */ 55 unsigned short e_oeminfo; /* OEM information; e_oemid specific, 0x0 */ 56 unsigned short e_res2[10]; /* Reserved words, all 0x0 */ 57 bfd_vma e_lfanew; /* File address of new exe header, 0x80 */ 58 unsigned long dos_message[16]; /* text which always follows dos header */ 59 bfd_vma nt_signature; /* required NT signature, 0x4550 */ 60 }; 61 62 #define GO32_STUBSIZE 2048 63 64 struct internal_filehdr 65 { 66 struct internal_extra_pe_filehdr pe; 67 68 /* coff-stgo32 EXE stub header before BFD tdata has been allocated. 69 Its data is kept in INTERNAL_FILEHDR.GO32STUB afterwards. 70 71 F_GO32STUB is set iff go32stub contains a valid data. Artifical headers 72 created in BFD have no pre-set go32stub. */ 73 char go32stub[GO32_STUBSIZE]; 74 75 /* Standard coff internal info. */ 76 unsigned short f_magic; /* magic number */ 77 unsigned short f_nscns; /* number of sections */ 78 long f_timdat; /* time & date stamp */ 79 bfd_vma f_symptr; /* file pointer to symtab */ 80 long f_nsyms; /* number of symtab entries */ 81 unsigned short f_opthdr; /* sizeof(optional hdr) */ 82 unsigned short f_flags; /* flags */ 83 unsigned short f_target_id; /* (TI COFF specific) */ 84 }; 85 86 87 /* Bits for f_flags: 88 F_RELFLG relocation info stripped from file 89 F_EXEC file is executable (no unresolved external references) 90 F_LNNO line numbers stripped from file 91 F_LSYMS local symbols stripped from file 92 F_AR16WR file is 16-bit little-endian 93 F_AR32WR file is 32-bit little-endian 94 F_AR32W file is 32-bit big-endian 95 F_DYNLOAD rs/6000 aix: dynamically loadable w/imports & exports 96 F_SHROBJ rs/6000 aix: file is a shared object 97 F_DLL PE format DLL 98 F_GO32STUB Field go32stub contains valid data. */ 99 100 #define F_RELFLG (0x0001) 101 #define F_EXEC (0x0002) 102 #define F_LNNO (0x0004) 103 #define F_LSYMS (0x0008) 104 #define F_AR16WR (0x0080) 105 #define F_AR32WR (0x0100) 106 #define F_AR32W (0x0200) 107 #define F_DYNLOAD (0x1000) 108 #define F_SHROBJ (0x2000) 109 #define F_DLL (0x2000) 110 #define F_GO32STUB (0x4000) 111 112 /* Extra structure which is used in the optional header. */ 113 typedef struct _IMAGE_DATA_DIRECTORY 114 { 115 bfd_vma VirtualAddress; 116 long Size; 117 } IMAGE_DATA_DIRECTORY; 118 #define PE_EXPORT_TABLE 0 119 #define PE_IMPORT_TABLE 1 120 #define PE_RESOURCE_TABLE 2 121 #define PE_EXCEPTION_TABLE 3 122 #define PE_CERTIFICATE_TABLE 4 123 #define PE_BASE_RELOCATION_TABLE 5 124 #define PE_DEBUG_DATA 6 125 #define PE_ARCHITECTURE 7 126 #define PE_GLOBAL_PTR 8 127 #define PE_TLS_TABLE 9 128 #define PE_LOAD_CONFIG_TABLE 10 129 #define PE_BOUND_IMPORT_TABLE 11 130 #define PE_IMPORT_ADDRESS_TABLE 12 131 #define PE_DELAY_IMPORT_DESCRIPTOR 13 132 #define PE_CLR_RUNTIME_HEADER 14 133 /* DataDirectory[15] is currently reserved, so no define. */ 134 #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16 135 136 /* Default image base for NT. */ 137 #define NT_EXE_IMAGE_BASE 0x400000 138 #define NT_DLL_IMAGE_BASE 0x10000000 139 140 /* Default image base for BeOS. */ 141 #define BEOS_EXE_IMAGE_BASE 0x80000000 142 #define BEOS_DLL_IMAGE_BASE 0x10000000 143 144 /* Extra stuff in a PE aouthdr */ 145 146 #define PE_DEF_SECTION_ALIGNMENT 0x1000 147 #ifndef PE_DEF_FILE_ALIGNMENT 148 # define PE_DEF_FILE_ALIGNMENT 0x200 149 #endif 150 151 struct internal_extra_pe_aouthdr 152 { 153 /* FIXME: The following entries are in AOUTHDR. But they aren't 154 available internally in bfd. We add them here so that objdump 155 can dump them. */ 156 /* The state of the image file */ 157 short Magic; 158 /* Linker major version number */ 159 char MajorLinkerVersion; 160 /* Linker minor version number */ 161 char MinorLinkerVersion; 162 /* Total size of all code sections */ 163 long SizeOfCode; 164 /* Total size of all initialized data sections */ 165 long SizeOfInitializedData; 166 /* Total size of all uninitialized data sections */ 167 long SizeOfUninitializedData; 168 /* Address of entry point relative to image base. */ 169 bfd_vma AddressOfEntryPoint; 170 /* Address of the first code section relative to image base. */ 171 bfd_vma BaseOfCode; 172 /* Address of the first data section relative to image base. */ 173 bfd_vma BaseOfData; 174 175 /* PE stuff */ 176 bfd_vma ImageBase; /* address of specific location in memory that 177 file is located, NT default 0x10000 */ 178 179 bfd_vma SectionAlignment; /* section alignment default 0x1000 */ 180 bfd_vma FileAlignment; /* file alignment default 0x200 */ 181 short MajorOperatingSystemVersion; /* minimum version of the operating */ 182 short MinorOperatingSystemVersion; /* system req'd for exe, default to 1*/ 183 short MajorImageVersion; /* user defineable field to store version of */ 184 short MinorImageVersion; /* exe or dll being created, default to 0 */ 185 short MajorSubsystemVersion; /* minimum subsystem version required to */ 186 short MinorSubsystemVersion; /* run exe; default to 3.1 */ 187 long Reserved1; /* seems to be 0 */ 188 long SizeOfImage; /* size of memory to allocate for prog */ 189 long SizeOfHeaders; /* size of PE header and section table */ 190 long CheckSum; /* set to 0 */ 191 short Subsystem; 192 193 /* type of subsystem exe uses for user interface, 194 possible values: 195 1 - NATIVE Doesn't require a subsystem 196 2 - WINDOWS_GUI runs in Windows GUI subsystem 197 3 - WINDOWS_CUI runs in Windows char sub. (console app) 198 5 - OS2_CUI runs in OS/2 character subsystem 199 7 - POSIX_CUI runs in Posix character subsystem */ 200 unsigned short DllCharacteristics; /* flags for DLL init */ 201 bfd_vma SizeOfStackReserve; /* amount of memory to reserve */ 202 bfd_vma SizeOfStackCommit; /* amount of memory initially committed for 203 initial thread's stack, default is 0x1000 */ 204 bfd_vma SizeOfHeapReserve; /* amount of virtual memory to reserve and */ 205 bfd_vma SizeOfHeapCommit; /* commit, don't know what to defaut it to */ 206 long LoaderFlags; /* can probably set to 0 */ 207 long NumberOfRvaAndSizes; /* number of entries in next entry, 16 */ 208 IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES]; 209 }; 210 211 /********************** AOUT "OPTIONAL HEADER" **********************/ 212 struct internal_aouthdr 213 { 214 short magic; /* type of file */ 215 short vstamp; /* version stamp */ 216 bfd_vma tsize; /* text size in bytes, padded to FW bdry*/ 217 bfd_vma dsize; /* initialized data " " */ 218 bfd_vma bsize; /* uninitialized data " " */ 219 bfd_vma entry; /* entry pt. */ 220 bfd_vma text_start; /* base of text used for this file */ 221 bfd_vma data_start; /* base of data used for this file */ 222 223 /* i960 stuff */ 224 unsigned long tagentries; /* number of tag entries to follow */ 225 226 /* RS/6000 stuff */ 227 bfd_vma o_toc; /* address of TOC */ 228 short o_snentry; /* section number for entry point */ 229 short o_sntext; /* section number for text */ 230 short o_sndata; /* section number for data */ 231 short o_sntoc; /* section number for toc */ 232 short o_snloader; /* section number for loader section */ 233 short o_snbss; /* section number for bss */ 234 short o_algntext; /* max alignment for text */ 235 short o_algndata; /* max alignment for data */ 236 short o_modtype; /* Module type field, 1R,RE,RO */ 237 short o_cputype; /* Encoded CPU type */ 238 bfd_vma o_maxstack; /* max stack size allowed. */ 239 bfd_vma o_maxdata; /* max data size allowed. */ 240 241 /* ECOFF stuff */ 242 bfd_vma bss_start; /* Base of bss section. */ 243 bfd_vma gp_value; /* GP register value. */ 244 unsigned long gprmask; /* General registers used. */ 245 unsigned long cprmask[4]; /* Coprocessor registers used. */ 246 unsigned long fprmask; /* Floating pointer registers used. */ 247 248 /* Apollo stuff */ 249 long o_inlib; /* inlib data */ 250 long o_sri; /* Static Resource Information */ 251 long vid[2]; /* Version id */ 252 253 struct internal_extra_pe_aouthdr pe; 254 }; 255 256 /********************** STORAGE CLASSES **********************/ 257 258 /* This used to be defined as -1, but now n_sclass is unsigned. */ 259 #define C_EFCN 0xff /* physical end of function */ 260 #define C_NULL 0 261 #define C_AUTO 1 /* automatic variable */ 262 #define C_EXT 2 /* external symbol */ 263 #define C_STAT 3 /* static */ 264 #define C_REG 4 /* register variable */ 265 #define C_EXTDEF 5 /* external definition */ 266 #define C_LABEL 6 /* label */ 267 #define C_ULABEL 7 /* undefined label */ 268 #define C_MOS 8 /* member of structure */ 269 #define C_ARG 9 /* function argument */ 270 #define C_STRTAG 10 /* structure tag */ 271 #define C_MOU 11 /* member of union */ 272 #define C_UNTAG 12 /* union tag */ 273 #define C_TPDEF 13 /* type definition */ 274 #define C_USTATIC 14 /* undefined static */ 275 #define C_ENTAG 15 /* enumeration tag */ 276 #define C_MOE 16 /* member of enumeration */ 277 #define C_REGPARM 17 /* register parameter */ 278 #define C_FIELD 18 /* bit field */ 279 #define C_AUTOARG 19 /* auto argument */ 280 #define C_LASTENT 20 /* dummy entry (end of block) */ 281 #define C_BLOCK 100 /* ".bb" or ".eb" */ 282 #define C_FCN 101 /* ".bf" or ".ef" */ 283 #define C_EOS 102 /* end of structure */ 284 #define C_FILE 103 /* file name */ 285 #define C_LINE 104 /* line # reformatted as symbol table entry */ 286 #define C_ALIAS 105 /* duplicate tag */ 287 #define C_HIDDEN 106 /* ext symbol in dmert public lib */ 288 #define C_WEAKEXT 127 /* weak symbol -- GNU extension. */ 289 290 /* New storage classes for TI COFF */ 291 #define C_UEXT 19 /* Tentative external definition */ 292 #define C_STATLAB 20 /* Static load time label */ 293 #define C_EXTLAB 21 /* External load time label */ 294 #define C_SYSTEM 23 /* System Wide variable */ 295 296 /* New storage classes for WINDOWS_NT */ 297 #define C_SECTION 104 /* section name */ 298 #define C_NT_WEAK 105 /* weak external */ 299 300 /* New storage classes for 80960 */ 301 302 /* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */ 303 #define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */ 304 305 #define C_SCALL 107 /* Procedure reachable via system call */ 306 #define C_LEAFEXT 108 /* External leaf */ 307 #define C_LEAFSTAT 113 /* Static leaf */ 308 #define C_OPTVAR 109 /* Optimized variable */ 309 #define C_DEFINE 110 /* Preprocessor #define */ 310 #define C_PRAGMA 111 /* Advice to compiler or linker */ 311 #define C_SEGMENT 112 /* 80960 segment name */ 312 313 /* Storage classes for m88k */ 314 #define C_SHADOW 107 /* shadow symbol */ 315 #define C_VERSION 108 /* coff version symbol */ 316 317 /* New storage classes for RS/6000 */ 318 #define C_HIDEXT 107 /* Un-named external symbol */ 319 #define C_BINCL 108 /* Marks beginning of include file */ 320 #define C_EINCL 109 /* Marks ending of include file */ 321 #define C_AIX_WEAKEXT 111 /* AIX definition of C_WEAKEXT. */ 322 323 #if defined _AIX52 || defined AIX_WEAK_SUPPORT 324 #undef C_WEAKEXT 325 #define C_WEAKEXT C_AIX_WEAKEXT 326 #endif 327 328 /* storage classes for stab symbols for RS/6000 */ 329 #define C_GSYM (0x80) 330 #define C_LSYM (0x81) 331 #define C_PSYM (0x82) 332 #define C_RSYM (0x83) 333 #define C_RPSYM (0x84) 334 #define C_STSYM (0x85) 335 #define C_TCSYM (0x86) 336 #define C_BCOMM (0x87) 337 #define C_ECOML (0x88) 338 #define C_ECOMM (0x89) 339 #define C_DECL (0x8c) 340 #define C_ENTRY (0x8d) 341 #define C_FUN (0x8e) 342 #define C_BSTAT (0x8f) 343 #define C_ESTAT (0x90) 344 345 /* Storage classes for Thumb symbols */ 346 #define C_THUMBEXT (128 + C_EXT) /* 130 */ 347 #define C_THUMBSTAT (128 + C_STAT) /* 131 */ 348 #define C_THUMBLABEL (128 + C_LABEL) /* 134 */ 349 #define C_THUMBEXTFUNC (C_THUMBEXT + 20) /* 150 */ 350 #define C_THUMBSTATFUNC (C_THUMBSTAT + 20) /* 151 */ 351 352 /* True if XCOFF symbols of class CLASS have auxillary csect information. */ 353 #define CSECT_SYM_P(CLASS) \ 354 ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT) 355 356 /********************** SECTION HEADER **********************/ 357 358 #define SCNNMLEN (8) 359 360 struct internal_scnhdr 361 { 362 char s_name[SCNNMLEN]; /* section name */ 363 364 /* Physical address, aliased s_nlib. 365 In the pei format, this field is the virtual section size 366 (the size of the section after being loaded int memory), 367 NOT the physical address. */ 368 bfd_vma s_paddr; 369 370 bfd_vma s_vaddr; /* virtual address */ 371 bfd_vma s_size; /* section size */ 372 bfd_vma s_scnptr; /* file ptr to raw data for section */ 373 bfd_vma s_relptr; /* file ptr to relocation */ 374 bfd_vma s_lnnoptr; /* file ptr to line numbers */ 375 unsigned long s_nreloc; /* number of relocation entries */ 376 unsigned long s_nlnno; /* number of line number entries*/ 377 long s_flags; /* flags */ 378 long s_align; /* used on I960 */ 379 unsigned char s_page; /* TI COFF load page */ 380 }; 381 382 /* s_flags "type". */ 383 #define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */ 384 #define STYP_DSECT (0x0001) /* "dummy": relocated only*/ 385 #define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */ 386 #define STYP_GROUP (0x0004) /* "grouped": formed of input sections */ 387 #define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */ 388 #define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated, 389 loaded; reloc & lineno entries processed normally */ 390 #define STYP_TEXT (0x0020) /* section contains text only */ 391 #define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile 392 will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will 393 update all process invocations. */ 394 #define STYP_DATA (0x0040) /* section contains data only */ 395 #define STYP_BSS (0x0080) /* section contains bss only */ 396 #define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */ 397 #define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */ 398 #define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */ 399 #define STYP_LIB (0x0800) /* for .lib: same as INFO */ 400 #define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */ 401 #define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions 402 wherever padding is necessary and there is a 403 word of contiguous bytes beginning on a word 404 boundary. */ 405 406 #define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */ 407 408 409 /********************** LINE NUMBERS **********************/ 410 411 /* 1 line number entry for every "breakpointable" source line in a section. 412 Line numbers are grouped on a per function basis; first entry in a function 413 grouping will have l_lnno = 0 and in place of physical address will be the 414 symbol table index of the function name. */ 415 416 struct internal_lineno 417 { 418 union 419 { 420 bfd_signed_vma l_symndx; /* function name symbol index, iff l_lnno == 0*/ 421 bfd_signed_vma l_paddr; /* (physical) address of line number */ 422 } l_addr; 423 unsigned long l_lnno; /* line number */ 424 }; 425 426 /********************** SYMBOLS **********************/ 427 428 #define SYMNMLEN 8 /* # characters in a symbol name */ 429 #define FILNMLEN 14 /* # characters in a file name */ 430 #define DIMNUM 4 /* # array dimensions in auxiliary entry */ 431 432 struct internal_syment 433 { 434 union 435 { 436 char _n_name[SYMNMLEN]; /* old COFF version */ 437 struct 438 { 439 bfd_hostptr_t _n_zeroes; /* new == 0 */ 440 bfd_hostptr_t _n_offset; /* offset into string table */ 441 } _n_n; 442 char *_n_nptr[2]; /* allows for overlaying */ 443 } _n; 444 bfd_vma n_value; /* value of symbol */ 445 short n_scnum; /* section number */ 446 unsigned short n_flags; /* copy of flags from filhdr */ 447 unsigned short n_type; /* type and derived type */ 448 unsigned char n_sclass; /* storage class */ 449 unsigned char n_numaux; /* number of aux. entries */ 450 }; 451 452 #define n_name _n._n_name 453 #define n_zeroes _n._n_n._n_zeroes 454 #define n_offset _n._n_n._n_offset 455 456 /* Relocatable symbols have number of the section in which they are defined, 457 or one of the following: */ 458 459 #define N_UNDEF ((short)0) /* undefined symbol */ 460 #define N_ABS ((short)-1) /* value of symbol is absolute */ 461 #define N_DEBUG ((short)-2) /* debugging symbol -- value is meaningless */ 462 #define N_TV ((short)-3) /* indicates symbol needs preload transfer vector */ 463 #define P_TV ((short)-4) /* indicates symbol needs postload transfer vector*/ 464 465 /* Type of a symbol, in low N bits of the word. */ 466 467 #define T_NULL 0 468 #define T_VOID 1 /* function argument (only used by compiler) */ 469 #define T_CHAR 2 /* character */ 470 #define T_SHORT 3 /* short integer */ 471 #define T_INT 4 /* integer */ 472 #define T_LONG 5 /* long integer */ 473 #define T_FLOAT 6 /* floating point */ 474 #define T_DOUBLE 7 /* double word */ 475 #define T_STRUCT 8 /* structure */ 476 #define T_UNION 9 /* union */ 477 #define T_ENUM 10 /* enumeration */ 478 #define T_MOE 11 /* member of enumeration*/ 479 #define T_UCHAR 12 /* unsigned character */ 480 #define T_USHORT 13 /* unsigned short */ 481 #define T_UINT 14 /* unsigned integer */ 482 #define T_ULONG 15 /* unsigned long */ 483 #define T_LNGDBL 16 /* long double */ 484 485 /* Derived types, in n_type. */ 486 487 #define DT_NON (0) /* no derived type */ 488 #define DT_PTR (1) /* pointer */ 489 #define DT_FCN (2) /* function */ 490 #define DT_ARY (3) /* array */ 491 492 #define BTYPE(x) ((x) & N_BTMASK) 493 #define DTYPE(x) (((x) & N_TMASK) >> N_BTSHFT) 494 495 #define ISPTR(x) \ 496 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT)) 497 #define ISFCN(x) \ 498 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT)) 499 #define ISARY(x) \ 500 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT)) 501 #define ISTAG(x) \ 502 ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG) 503 #define DECREF(x) \ 504 ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK)) 505 506 union internal_auxent 507 { 508 struct 509 { 510 511 union 512 { 513 long l; /* str, un, or enum tag indx */ 514 struct coff_ptr_struct *p; 515 } x_tagndx; 516 517 union 518 { 519 struct 520 { 521 unsigned short x_lnno; /* declaration line number */ 522 unsigned short x_size; /* str/union/array size */ 523 } x_lnsz; 524 long x_fsize; /* size of function */ 525 } x_misc; 526 527 union 528 { 529 struct 530 { /* if ISFCN, tag, or .bb */ 531 bfd_signed_vma x_lnnoptr; /* ptr to fcn line # */ 532 union 533 { /* entry ndx past block end */ 534 long l; 535 struct coff_ptr_struct *p; 536 } x_endndx; 537 } x_fcn; 538 539 struct 540 { /* if ISARY, up to 4 dimen. */ 541 unsigned short x_dimen[DIMNUM]; 542 } x_ary; 543 } x_fcnary; 544 545 unsigned short x_tvndx; /* tv index */ 546 } x_sym; 547 548 union 549 { 550 char x_fname[FILNMLEN]; 551 struct 552 { 553 long x_zeroes; 554 long x_offset; 555 } x_n; 556 } x_file; 557 558 struct 559 { 560 long x_scnlen; /* section length */ 561 unsigned short x_nreloc; /* # relocation entries */ 562 unsigned short x_nlinno; /* # line numbers */ 563 unsigned long x_checksum; /* section COMDAT checksum for PE */ 564 unsigned short x_associated; /* COMDAT associated section index for PE */ 565 unsigned char x_comdat; /* COMDAT selection number for PE */ 566 } x_scn; 567 568 struct 569 { 570 long x_tvfill; /* tv fill value */ 571 unsigned short x_tvlen; /* length of .tv */ 572 unsigned short x_tvran[2]; /* tv range */ 573 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ 574 575 /****************************************** 576 * RS/6000-specific auxent - last auxent for every external symbol 577 ******************************************/ 578 struct 579 { 580 union 581 { /* csect length or enclosing csect */ 582 bfd_signed_vma l; 583 struct coff_ptr_struct *p; 584 } x_scnlen; 585 long x_parmhash; /* parm type hash index */ 586 unsigned short x_snhash; /* sect num with parm hash */ 587 unsigned char x_smtyp; /* symbol align and type */ 588 /* 0-4 - Log 2 of alignment */ 589 /* 5-7 - symbol type */ 590 unsigned char x_smclas; /* storage mapping class */ 591 long x_stab; /* dbx stab info index */ 592 unsigned short x_snstab; /* sect num with dbx stab */ 593 } x_csect; /* csect definition information */ 594 595 /* x_smtyp values: */ 596 597 #define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */ 598 #define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */ 599 /* Symbol type values: */ 600 #define XTY_ER 0 /* External reference */ 601 #define XTY_SD 1 /* Csect definition */ 602 #define XTY_LD 2 /* Label definition */ 603 #define XTY_CM 3 /* .BSS */ 604 #define XTY_EM 4 /* Error message */ 605 #define XTY_US 5 /* "Reserved for internal use" */ 606 607 /* x_smclas values: */ 608 609 #define XMC_PR 0 /* Read-only program code */ 610 #define XMC_RO 1 /* Read-only constant */ 611 #define XMC_DB 2 /* Read-only debug dictionary table */ 612 #define XMC_TC 3 /* Read-write general TOC entry */ 613 #define XMC_UA 4 /* Read-write unclassified */ 614 #define XMC_RW 5 /* Read-write data */ 615 #define XMC_GL 6 /* Read-only global linkage */ 616 #define XMC_XO 7 /* Read-only extended operation */ 617 #define XMC_SV 8 /* Read-only supervisor call */ 618 #define XMC_BS 9 /* Read-write BSS */ 619 #define XMC_DS 10 /* Read-write descriptor csect */ 620 #define XMC_UC 11 /* Read-write unnamed Fortran common */ 621 #define XMC_TI 12 /* Read-only traceback index csect */ 622 #define XMC_TB 13 /* Read-only traceback table csect */ 623 /* 14 ??? */ 624 #define XMC_TC0 15 /* Read-write TOC anchor */ 625 #define XMC_TD 16 /* Read-write data in TOC */ 626 627 /****************************************** 628 * I960-specific *2nd* aux. entry formats 629 ******************************************/ 630 struct 631 { 632 /* This is a very old typo that keeps getting propagated. */ 633 #define x_stdindx x_stindx 634 long x_stindx; /* sys. table entry */ 635 } x_sc; /* system call entry */ 636 637 struct 638 { 639 unsigned long x_balntry; /* BAL entry point */ 640 } x_bal; /* BAL-callable function */ 641 642 struct 643 { 644 unsigned long x_timestamp; /* time stamp */ 645 char x_idstring[20]; /* producer identity string */ 646 } x_ident; /* Producer ident info */ 647 648 }; 649 650 /********************** RELOCATION DIRECTIVES **********************/ 651 652 struct internal_reloc 653 { 654 bfd_vma r_vaddr; /* Virtual address of reference */ 655 long r_symndx; /* Index into symbol table */ 656 unsigned short r_type; /* Relocation type */ 657 unsigned char r_size; /* Used by RS/6000 and ECOFF */ 658 unsigned char r_extern; /* Used by ECOFF */ 659 unsigned long r_offset; /* Used by Alpha ECOFF, SPARC, others */ 660 }; 661 662 /* X86-64 relocations. */ 663 #define R_AMD64_ABS 0 /* Reference is absolute, no relocation is necessary. */ 664 #define R_AMD64_DIR64 1 /* 64-bit address (VA). */ 665 #define R_AMD64_DIR32 2 /* 32-bit address (VA) R_DIR32. */ 666 #define R_AMD64_IMAGEBASE 3 /* 32-bit absolute ref w/o base R_IMAGEBASE. */ 667 #define R_AMD64_PCRLONG 4 /* 32-bit relative address from byte following reloc R_PCRLONG. */ 668 #define R_AMD64_PCRLONG_1 5 /* 32-bit relative address from byte distance 1 from reloc. */ 669 #define R_AMD64_PCRLONG_2 6 /* 32-bit relative address from byte distance 2 from reloc. */ 670 #define R_AMD64_PCRLONG_3 7 /* 32-bit relative address from byte distance 3 from reloc. */ 671 #define R_AMD64_PCRLONG_4 8 /* 32-bit relative address from byte distance 4 from reloc. */ 672 #define R_AMD64_PCRLONG_5 9 /* 32-bit relative address from byte distance 5 from reloc. */ 673 #define R_AMD64_SECTION 10 /* Section index. */ 674 #define R_AMD64_SECREL 11 /* 32 bit offset from base of section containing target R_SECREL. */ 675 #define R_AMD64_SECREL7 12 /* 7 bit unsigned offset from base of section containing target. */ 676 #define R_AMD64_TOKEN 13 /* 32 bit metadata token. */ 677 #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. */ 678 679 /* i386 Relocations. */ 680 681 #define R_DIR16 1 682 #define R_REL24 5 683 #define R_DIR32 6 684 #define R_IMAGEBASE 7 685 #define R_SECREL32 11 686 #define R_RELBYTE 15 687 #define R_RELWORD 16 688 #define R_RELLONG 17 689 #define R_PCRBYTE 18 690 #define R_PCRWORD 19 691 #define R_PCRLONG 20 692 #define R_PCR24 21 693 #define R_IPRSHORT 24 694 #define R_IPRLONG 26 695 #define R_GETSEG 29 696 #define R_GETPA 30 697 #define R_TAGWORD 31 698 #define R_JUMPTARG 32 /* strange 29k 00xx00xx reloc */ 699 #define R_PARTLS16 32 700 #define R_PARTMS8 33 701 702 #define R_PCR16L 128 703 #define R_PCR26L 129 704 #define R_VRT16 130 705 #define R_HVRT16 131 706 #define R_LVRT16 132 707 #define R_VRT32 133 708 709 710 /* This reloc identifies mov.b instructions with a 16bit absolute 711 address. The linker tries to turn insns with this reloc into 712 an absolute 8-bit address. */ 713 #define R_MOV16B1 0x41 714 715 /* This reloc identifies mov.b instructions which had a 16bit 716 absolute address which have been shortened into a 8-bit 717 absolute address. */ 718 #define R_MOV16B2 0x42 719 720 /* This reloc identifies jmp insns with a 16bit target address; 721 the linker tries to turn these insns into bra insns with 722 an 8bit pc-relative target. */ 723 #define R_JMP1 0x43 724 725 /* This reloc identifies a bra with an 8-bit pc-relative 726 target that was formerly a jmp insn with a 16bit target. */ 727 #define R_JMP2 0x44 728 729 /* ??? */ 730 #define R_RELLONG_NEG 0x45 731 732 /* This reloc identifies jmp insns with a 24bit target address; 733 the linker tries to turn these insns into bra insns with 734 an 8bit pc-relative target. */ 735 #define R_JMPL1 0x46 736 737 /* This reloc identifies a bra with an 8-bit pc-relative 738 target that was formerly a jmp insn with a 24bit target. */ 739 #define R_JMPL2 0x47 740 741 /* This reloc identifies mov.b instructions with a 24bit absolute 742 address. The linker tries to turn insns with this reloc into 743 an absolute 8-bit address. */ 744 745 #define R_MOV24B1 0x48 746 747 /* This reloc identifies mov.b instructions which had a 24bit 748 absolute address which have been shortened into a 8-bit 749 absolute address. */ 750 #define R_MOV24B2 0x49 751 752 /* An h8300 memory indirect jump/call. Forces the address of the jump/call 753 target into the function vector (in page zero), and the address of the 754 vector entry to be placed in the jump/call instruction. */ 755 #define R_MEM_INDIRECT 0x4a 756 757 /* This reloc identifies a 16bit pc-relative branch target which was 758 shortened into an 8bit pc-relative branch target. */ 759 #define R_PCRWORD_B 0x4b 760 761 /* This reloc identifies mov.[wl] instructions with a 32/24 bit 762 absolute address; the linker may turn this into a mov.[wl] 763 insn with a 16bit absolute address. */ 764 #define R_MOVL1 0x4c 765 766 /* This reloc identifies mov.[wl] insns which formerly had 767 a 32/24bit absolute address and now have a 16bit absolute address. */ 768 #define R_MOVL2 0x4d 769 770 /* This reloc identifies a bCC:8 which will have it's condition 771 inverted and its target redirected to the target of the branch 772 in the following insn. */ 773 #define R_BCC_INV 0x4e 774 775 /* This reloc identifies a jmp instruction that has been deleted. */ 776 #define R_JMP_DEL 0x4f 777 778 /* Z8k modes */ 779 #define R_IMM16 0x01 /* 16 bit abs */ 780 #define R_JR 0x02 /* jr 8 bit disp */ 781 #define R_IMM4L 0x23 /* low nibble */ 782 #define R_IMM8 0x22 /* 8 bit abs */ 783 #define R_IMM32 R_RELLONG /* 32 bit abs */ 784 #define R_CALL R_DA /* Absolute address which could be a callr */ 785 #define R_JP R_DA /* Absolute address which could be a jp */ 786 #define R_REL16 0x04 /* 16 bit PC rel */ 787 #define R_CALLR 0x05 /* callr 12 bit disp */ 788 #define R_SEG 0x10 /* set if in segmented mode */ 789 #define R_IMM4H 0x24 /* high nibble */ 790 #define R_DISP7 0x25 /* djnz displacement */ 791 792 /* Z80 modes */ 793 #define R_OFF8 0x32 /* 8 bit signed abs, for (i[xy]+d) */ 794 #define R_IMM24 0x33 /* 24 bit abs */ 795 /* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */ 796 797 /* H8500 modes */ 798 799 #define R_H8500_IMM8 1 /* 8 bit immediate */ 800 #define R_H8500_IMM16 2 /* 16 bit immediate */ 801 #define R_H8500_PCREL8 3 /* 8 bit pcrel */ 802 #define R_H8500_PCREL16 4 /* 16 bit pcrel */ 803 #define R_H8500_HIGH8 5 /* high 8 bits of 24 bit address */ 804 #define R_H8500_LOW16 7 /* low 16 bits of 24 bit immediate */ 805 #define R_H8500_IMM24 6 /* 24 bit immediate */ 806 #define R_H8500_IMM32 8 /* 32 bit immediate */ 807 #define R_H8500_HIGH16 9 /* high 16 bits of 32 bit immediate */ 808 809 /* W65 modes */ 810 811 #define R_W65_ABS8 1 /* addr & 0xff */ 812 #define R_W65_ABS16 2 /* addr & 0xffff */ 813 #define R_W65_ABS24 3 /* addr & 0xffffff */ 814 815 #define R_W65_ABS8S8 4 /* (addr >> 8) & 0xff */ 816 #define R_W65_ABS8S16 5 /* (addr >> 16) & 0xff */ 817 818 #define R_W65_ABS16S8 6 /* (addr >> 8) & 0ffff */ 819 #define R_W65_ABS16S16 7 /* (addr >> 16) & 0ffff */ 820 821 #define R_W65_PCR8 8 822 #define R_W65_PCR16 9 823 824 #define R_W65_DP 10 /* direct page 8 bits only */ 825 826 #endif /* GNU_COFF_INTERNAL_H */ 827