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 35struct 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 63struct 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. */ 112typedef 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 150struct 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" **********************/ 211struct 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 359struct 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 415struct 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 431struct internal_syment 432{ 433 union 434 { 435 char _n_name[SYMNMLEN]; /* old COFF version */ 436 struct 437 { 438 long _n_zeroes; /* new == 0 */ 439 long _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 505union 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 651struct 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