1/* Internal format of COFF object file data structures, for GNU BFD. 2 This file is part of BFD, the Binary File Descriptor library. 3 4 Copyright (C) 1999-2017 Free Software Foundation, Inc. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 19 MA 02110-1301, USA. */ 20 21#ifndef GNU_COFF_INTERNAL_H 22#define GNU_COFF_INTERNAL_H 1 23 24/* First, make "signed char" work, even on old compilers. */ 25#ifndef signed 26#ifndef __STDC__ 27#define signed /**/ 28#endif 29#endif 30 31/********************** FILE HEADER **********************/ 32 33/* extra stuff in a PE header. */ 34 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 int f_nscns; /* number of sections */ 77 long f_timdat; /* time & date stamp */ 78 bfd_vma f_symptr; /* file pointer to symtab */ 79 long f_nsyms; /* number of symtab entries */ 80 unsigned short f_opthdr; /* sizeof(optional hdr) */ 81 unsigned short f_flags; /* flags */ 82 unsigned short f_target_id; /* (TI COFF specific) */ 83}; 84 85 86/* Bits for f_flags: 87 F_RELFLG relocation info stripped from file 88 F_EXEC file is executable (no unresolved external references) 89 F_LNNO line numbers stripped from file 90 F_LSYMS local symbols stripped from file 91 F_AR16WR file is 16-bit little-endian 92 F_AR32WR file is 32-bit little-endian 93 F_AR32W file is 32-bit big-endian 94 F_DYNLOAD rs/6000 aix: dynamically loadable w/imports & exports 95 F_SHROBJ rs/6000 aix: file is a shared object 96 F_DLL PE format DLL 97 F_GO32STUB Field go32stub contains valid data. */ 98 99#define F_RELFLG (0x0001) 100#define F_EXEC (0x0002) 101#define F_LNNO (0x0004) 102#define F_LSYMS (0x0008) 103#define F_AR16WR (0x0080) 104#define F_AR32WR (0x0100) 105#define F_AR32W (0x0200) 106#define F_DYNLOAD (0x1000) 107#define F_SHROBJ (0x2000) 108#define F_DLL (0x2000) 109#define F_GO32STUB (0x4000) 110 111/* Extra structure which is used in the optional header. */ 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/* Extra structure used in debug directory. */ 136struct internal_IMAGE_DEBUG_DIRECTORY 137{ 138 unsigned long Characteristics; 139 unsigned long TimeDateStamp; 140 unsigned short MajorVersion; 141 unsigned short MinorVersion; 142 unsigned long Type; 143 unsigned long SizeOfData; 144 unsigned long AddressOfRawData; 145 unsigned long PointerToRawData; 146}; 147 148#define PE_IMAGE_DEBUG_TYPE_UNKNOWN 0 149#define PE_IMAGE_DEBUG_TYPE_COFF 1 150#define PE_IMAGE_DEBUG_TYPE_CODEVIEW 2 151#define PE_IMAGE_DEBUG_TYPE_FPO 3 152#define PE_IMAGE_DEBUG_TYPE_MISC 4 153#define PE_IMAGE_DEBUG_TYPE_EXCEPTION 5 154#define PE_IMAGE_DEBUG_TYPE_FIXUP 6 155#define PE_IMAGE_DEBUG_TYPE_OMAP_TO_SRC 7 156#define PE_IMAGE_DEBUG_TYPE_OMAP_FROM_SRC 8 157#define PE_IMAGE_DEBUG_TYPE_BORLAND 9 158#define PE_IMAGE_DEBUG_TYPE_RESERVED10 10 159#define PE_IMAGE_DEBUG_TYPE_CLSID 11 160 161/* Extra structure for a codeview debug record */ 162#define CV_INFO_SIGNATURE_LENGTH 16 163 164typedef struct _CODEVIEW_INFO 165{ 166 unsigned long CVSignature; 167 char Signature[CV_INFO_SIGNATURE_LENGTH]; 168 unsigned int SignatureLength; 169 unsigned long Age; 170 // char PdbFileName[]; 171} CODEVIEW_INFO; 172 173/* Default image base for NT. */ 174#define NT_EXE_IMAGE_BASE 0x400000 175#define NT_DLL_IMAGE_BASE 0x10000000 176 177/* Default image base for BeOS. */ 178#define BEOS_EXE_IMAGE_BASE 0x80000000 179#define BEOS_DLL_IMAGE_BASE 0x10000000 180 181/* Extra stuff in a PE aouthdr */ 182 183#define PE_DEF_SECTION_ALIGNMENT 0x1000 184#ifndef PE_DEF_FILE_ALIGNMENT 185# define PE_DEF_FILE_ALIGNMENT 0x200 186#endif 187 188struct internal_extra_pe_aouthdr 189{ 190 /* FIXME: The following entries are in AOUTHDR. But they aren't 191 available internally in bfd. We add them here so that objdump 192 can dump them. */ 193 /* The state of the image file. */ 194 short Magic; 195 /* Linker major version number. */ 196 char MajorLinkerVersion; 197 /* Linker minor version number. */ 198 char MinorLinkerVersion; 199 /* Total size of all code sections. */ 200 long SizeOfCode; 201 /* Total size of all initialized data sections. */ 202 long SizeOfInitializedData; 203 /* Total size of all uninitialized data sections. */ 204 long SizeOfUninitializedData; 205 /* Address of entry point relative to image base. */ 206 bfd_vma AddressOfEntryPoint; 207 /* Address of the first code section relative to image base. */ 208 bfd_vma BaseOfCode; 209 /* Address of the first data section relative to image base. */ 210 bfd_vma BaseOfData; 211 212 /* PE stuff */ 213 bfd_vma ImageBase; /* Address of specific location in memory that 214 file is located, NT default 0x10000. */ 215 216 bfd_vma SectionAlignment; /* Section alignment default 0x1000. */ 217 bfd_vma FileAlignment; /* File alignment default 0x200. */ 218 short MajorOperatingSystemVersion; /* Minimum version of the operating. */ 219 short MinorOperatingSystemVersion; /* System req'd for exe, default to 1. */ 220 short MajorImageVersion; /* User defineable field to store version of */ 221 short MinorImageVersion; /* exe or dll being created, default to 0. */ 222 short MajorSubsystemVersion; /* Minimum subsystem version required to */ 223 short MinorSubsystemVersion; /* run exe; default to 3.1. */ 224 long Reserved1; /* Seems to be 0. */ 225 long SizeOfImage; /* Size of memory to allocate for prog. */ 226 long SizeOfHeaders; /* Size of PE header and section table. */ 227 long CheckSum; /* Set to 0. */ 228 short Subsystem; 229 230 /* Type of subsystem exe uses for user interface, 231 possible values: 232 1 - NATIVE Doesn't require a subsystem 233 2 - WINDOWS_GUI runs in Windows GUI subsystem 234 3 - WINDOWS_CUI runs in Windows char sub. (console app) 235 5 - OS2_CUI runs in OS/2 character subsystem 236 7 - POSIX_CUI runs in Posix character subsystem. */ 237 unsigned short DllCharacteristics; /* flags for DLL init. */ 238 bfd_vma SizeOfStackReserve; /* Amount of memory to reserve. */ 239 bfd_vma SizeOfStackCommit; /* Amount of memory initially committed for 240 initial thread's stack, default is 0x1000. */ 241 bfd_vma SizeOfHeapReserve; /* Amount of virtual memory to reserve and */ 242 bfd_vma SizeOfHeapCommit; /* commit, don't know what to defaut it to. */ 243 long LoaderFlags; /* Can probably set to 0. */ 244 long NumberOfRvaAndSizes; /* Number of entries in next entry, 16. */ 245 IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES]; 246}; 247 248/********************** AOUT "OPTIONAL HEADER" **********************/ 249struct internal_aouthdr 250{ 251 short magic; /* type of file */ 252 short vstamp; /* version stamp */ 253 bfd_vma tsize; /* text size in bytes, padded to FW bdry*/ 254 bfd_vma dsize; /* initialized data " " */ 255 bfd_vma bsize; /* uninitialized data " " */ 256 bfd_vma entry; /* entry pt. */ 257 bfd_vma text_start; /* base of text used for this file */ 258 bfd_vma data_start; /* base of data used for this file */ 259 260 /* i960 stuff */ 261 unsigned long tagentries; /* number of tag entries to follow */ 262 263 /* RS/6000 stuff */ 264 bfd_vma o_toc; /* address of TOC */ 265 short o_snentry; /* section number for entry point */ 266 short o_sntext; /* section number for text */ 267 short o_sndata; /* section number for data */ 268 short o_sntoc; /* section number for toc */ 269 short o_snloader; /* section number for loader section */ 270 short o_snbss; /* section number for bss */ 271 short o_algntext; /* max alignment for text */ 272 short o_algndata; /* max alignment for data */ 273 short o_modtype; /* Module type field, 1R,RE,RO */ 274 short o_cputype; /* Encoded CPU type */ 275 bfd_vma o_maxstack; /* max stack size allowed. */ 276 bfd_vma o_maxdata; /* max data size allowed. */ 277 278 /* ECOFF stuff */ 279 bfd_vma bss_start; /* Base of bss section. */ 280 bfd_vma gp_value; /* GP register value. */ 281 unsigned long gprmask; /* General registers used. */ 282 unsigned long cprmask[4]; /* Coprocessor registers used. */ 283 unsigned long fprmask; /* Floating pointer registers used. */ 284 285 /* Apollo stuff */ 286 long o_inlib; /* inlib data */ 287 long o_sri; /* Static Resource Information */ 288 long vid[2]; /* Version id */ 289 290 struct internal_extra_pe_aouthdr pe; 291}; 292 293/********************** STORAGE CLASSES **********************/ 294 295/* This used to be defined as -1, but now n_sclass is unsigned. */ 296#define C_EFCN 0xff /* physical end of function */ 297#define C_NULL 0 298#define C_AUTO 1 /* automatic variable */ 299#define C_EXT 2 /* external symbol */ 300#define C_STAT 3 /* static */ 301#define C_REG 4 /* register variable */ 302#define C_EXTDEF 5 /* external definition */ 303#define C_LABEL 6 /* label */ 304#define C_ULABEL 7 /* undefined label */ 305#define C_MOS 8 /* member of structure */ 306#define C_ARG 9 /* function argument */ 307#define C_STRTAG 10 /* structure tag */ 308#define C_MOU 11 /* member of union */ 309#define C_UNTAG 12 /* union tag */ 310#define C_TPDEF 13 /* type definition */ 311#define C_USTATIC 14 /* undefined static */ 312#define C_ENTAG 15 /* enumeration tag */ 313#define C_MOE 16 /* member of enumeration */ 314#define C_REGPARM 17 /* register parameter */ 315#define C_FIELD 18 /* bit field */ 316#define C_AUTOARG 19 /* auto argument */ 317#define C_LASTENT 20 /* dummy entry (end of block) */ 318#define C_BLOCK 100 /* ".bb" or ".eb" */ 319#define C_FCN 101 /* ".bf" or ".ef" */ 320#define C_EOS 102 /* end of structure */ 321#define C_FILE 103 /* file name */ 322#define C_LINE 104 /* line # reformatted as symbol table entry */ 323#define C_ALIAS 105 /* duplicate tag */ 324#define C_HIDDEN 106 /* ext symbol in dmert public lib */ 325#define C_WEAKEXT 127 /* weak symbol -- GNU extension. */ 326 327/* New storage classes for TI COFF */ 328#define C_UEXT 19 /* Tentative external definition */ 329#define C_STATLAB 20 /* Static load time label */ 330#define C_EXTLAB 21 /* External load time label */ 331#define C_SYSTEM 23 /* System Wide variable */ 332 333/* New storage classes for WINDOWS_NT */ 334#define C_SECTION 104 /* section name */ 335#define C_NT_WEAK 105 /* weak external */ 336 337 /* New storage classes for 80960 */ 338 339/* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */ 340#define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */ 341 342#define C_SCALL 107 /* Procedure reachable via system call */ 343#define C_LEAFEXT 108 /* External leaf */ 344#define C_LEAFSTAT 113 /* Static leaf */ 345#define C_OPTVAR 109 /* Optimized variable */ 346#define C_DEFINE 110 /* Preprocessor #define */ 347#define C_PRAGMA 111 /* Advice to compiler or linker */ 348#define C_SEGMENT 112 /* 80960 segment name */ 349 350 /* Storage classes for m88k */ 351#define C_SHADOW 107 /* shadow symbol */ 352#define C_VERSION 108 /* coff version symbol */ 353 354 /* New storage classes for RS/6000 */ 355#define C_HIDEXT 107 /* Un-named external symbol */ 356#define C_BINCL 108 /* Marks beginning of include file */ 357#define C_EINCL 109 /* Marks ending of include file */ 358#define C_AIX_WEAKEXT 111 /* AIX definition of C_WEAKEXT. */ 359 360#define C_NULL_VALUE 0x00de1e00 /* Value for a C_NULL deleted entry. */ 361 362#if defined _AIX52 || defined AIX_WEAK_SUPPORT 363#undef C_WEAKEXT 364#define C_WEAKEXT C_AIX_WEAKEXT 365#endif 366 367 /* storage classes for stab symbols for RS/6000 */ 368#define C_GSYM (0x80) 369#define C_LSYM (0x81) 370#define C_PSYM (0x82) 371#define C_RSYM (0x83) 372#define C_RPSYM (0x84) 373#define C_STSYM (0x85) 374#define C_TCSYM (0x86) 375#define C_BCOMM (0x87) 376#define C_ECOML (0x88) 377#define C_ECOMM (0x89) 378#define C_DECL (0x8c) 379#define C_ENTRY (0x8d) 380#define C_FUN (0x8e) 381#define C_BSTAT (0x8f) 382#define C_ESTAT (0x90) 383#define C_GTLS (0x97) 384#define C_STTLS (0x98) 385 386/* Storage classes for Thumb symbols */ 387#define C_THUMBEXT (128 + C_EXT) /* 130 */ 388#define C_THUMBSTAT (128 + C_STAT) /* 131 */ 389#define C_THUMBLABEL (128 + C_LABEL) /* 134 */ 390#define C_THUMBEXTFUNC (C_THUMBEXT + 20) /* 150 */ 391#define C_THUMBSTATFUNC (C_THUMBSTAT + 20) /* 151 */ 392 393/* True if XCOFF symbols of class CLASS have auxillary csect information. */ 394#define CSECT_SYM_P(CLASS) \ 395 ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT) 396 397/********************** SECTION HEADER **********************/ 398 399#define SCNNMLEN (8) 400 401struct internal_scnhdr 402{ 403 char s_name[SCNNMLEN]; /* section name */ 404 405 /* Physical address, aliased s_nlib. 406 In the pei format, this field is the virtual section size 407 (the size of the section after being loaded int memory), 408 NOT the physical address. */ 409 bfd_vma s_paddr; 410 411 bfd_vma s_vaddr; /* virtual address */ 412 bfd_vma s_size; /* section size */ 413 bfd_vma s_scnptr; /* file ptr to raw data for section */ 414 bfd_vma s_relptr; /* file ptr to relocation */ 415 bfd_vma s_lnnoptr; /* file ptr to line numbers */ 416 unsigned long s_nreloc; /* number of relocation entries */ 417 unsigned long s_nlnno; /* number of line number entries*/ 418 long s_flags; /* flags */ 419 long s_align; /* used on I960 */ 420 unsigned char s_page; /* TI COFF load page */ 421}; 422 423/* s_flags "type". */ 424#define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */ 425#define STYP_DSECT (0x0001) /* "dummy": relocated only*/ 426#define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */ 427#define STYP_GROUP (0x0004) /* "grouped": formed of input sections */ 428#define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */ 429#define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated, 430 loaded; reloc & lineno entries processed normally */ 431#define STYP_TEXT (0x0020) /* section contains text only */ 432#define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile 433 will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will 434 update all process invocations. */ 435#define STYP_DATA (0x0040) /* section contains data only */ 436#define STYP_BSS (0x0080) /* section contains bss only */ 437#define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */ 438#define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */ 439#define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */ 440#define STYP_LIB (0x0800) /* for .lib: same as INFO */ 441#define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */ 442#define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions 443 wherever padding is necessary and there is a 444 word of contiguous bytes beginning on a word 445 boundary. */ 446 447#define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */ 448 449 450/********************** LINE NUMBERS **********************/ 451 452/* 1 line number entry for every "breakpointable" source line in a section. 453 Line numbers are grouped on a per function basis; first entry in a function 454 grouping will have l_lnno = 0 and in place of physical address will be the 455 symbol table index of the function name. */ 456 457struct internal_lineno 458{ 459 union 460 { 461 bfd_signed_vma l_symndx; /* function name symbol index, iff l_lnno == 0*/ 462 bfd_signed_vma l_paddr; /* (physical) address of line number */ 463 } l_addr; 464 unsigned long l_lnno; /* line number */ 465}; 466 467/********************** SYMBOLS **********************/ 468 469#define SYMNMLEN 8 /* # characters in a symbol name */ 470#define FILNMLEN 14 /* # characters in a file name */ 471#define DIMNUM 4 /* # array dimensions in auxiliary entry */ 472 473struct internal_syment 474{ 475 union 476 { 477 char _n_name[SYMNMLEN]; /* old COFF version */ 478 struct 479 { 480 bfd_hostptr_t _n_zeroes; /* new == 0 */ 481 bfd_hostptr_t _n_offset; /* offset into string table */ 482 } _n_n; 483 char *_n_nptr[2]; /* allows for overlaying */ 484 } _n; 485 bfd_vma n_value; /* value of symbol */ 486 int n_scnum; /* section number */ 487 unsigned short n_flags; /* copy of flags from filhdr */ 488 unsigned short n_type; /* type and derived type */ 489 unsigned char n_sclass; /* storage class */ 490 unsigned char n_numaux; /* number of aux. entries */ 491}; 492 493#define n_name _n._n_name 494#define n_zeroes _n._n_n._n_zeroes 495#define n_offset _n._n_n._n_offset 496 497/* Relocatable symbols have number of the section in which they are defined, 498 or one of the following: */ 499 500#define N_UNDEF ((int)0) /* undefined symbol */ 501#define N_ABS ((int)-1) /* value of symbol is absolute */ 502#define N_DEBUG ((int)-2) /* debugging symbol -- value is meaningless */ 503#define N_TV ((int)-3) /* indicates symbol needs preload transfer vector */ 504#define P_TV ((int)-4) /* indicates symbol needs postload transfer vector*/ 505 506/* Type of a symbol, in low N bits of the word. */ 507 508#define T_NULL 0 509#define T_VOID 1 /* function argument (only used by compiler) */ 510#define T_CHAR 2 /* character */ 511#define T_SHORT 3 /* short integer */ 512#define T_INT 4 /* integer */ 513#define T_LONG 5 /* long integer */ 514#define T_FLOAT 6 /* floating point */ 515#define T_DOUBLE 7 /* double word */ 516#define T_STRUCT 8 /* structure */ 517#define T_UNION 9 /* union */ 518#define T_ENUM 10 /* enumeration */ 519#define T_MOE 11 /* member of enumeration*/ 520#define T_UCHAR 12 /* unsigned character */ 521#define T_USHORT 13 /* unsigned short */ 522#define T_UINT 14 /* unsigned integer */ 523#define T_ULONG 15 /* unsigned long */ 524#define T_LNGDBL 16 /* long double */ 525 526/* Derived types, in n_type. */ 527 528#define DT_NON (0) /* no derived type */ 529#define DT_PTR (1) /* pointer */ 530#define DT_FCN (2) /* function */ 531#define DT_ARY (3) /* array */ 532 533#define BTYPE(x) ((x) & N_BTMASK) 534#define DTYPE(x) (((x) & N_TMASK) >> N_BTSHFT) 535 536#define ISPTR(x) \ 537 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT)) 538#define ISFCN(x) \ 539 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT)) 540#define ISARY(x) \ 541 (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT)) 542#define ISTAG(x) \ 543 ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG) 544#define DECREF(x) \ 545 ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK)) 546 547union internal_auxent 548{ 549 struct 550 { 551 552 union 553 { 554 long l; /* str, un, or enum tag indx */ 555 struct coff_ptr_struct *p; 556 } x_tagndx; 557 558 union 559 { 560 struct 561 { 562 unsigned short x_lnno; /* declaration line number */ 563 unsigned short x_size; /* str/union/array size */ 564 } x_lnsz; 565 long x_fsize; /* size of function */ 566 } x_misc; 567 568 union 569 { 570 struct 571 { /* if ISFCN, tag, or .bb */ 572 bfd_signed_vma x_lnnoptr; /* ptr to fcn line # */ 573 union 574 { /* entry ndx past block end */ 575 long l; 576 struct coff_ptr_struct *p; 577 } x_endndx; 578 } x_fcn; 579 580 struct 581 { /* if ISARY, up to 4 dimen. */ 582 unsigned short x_dimen[DIMNUM]; 583 } x_ary; 584 } x_fcnary; 585 586 unsigned short x_tvndx; /* tv index */ 587 } x_sym; 588 589 union 590 { 591 /* PR 17754: We use to FILNMLEN for the size of the x_fname 592 array, but that cause problems as PE targets use a larger 593 value. We cannot use their definition of EFILNMLEN as this 594 header can be used without including any PE headers. */ 595 char x_fname[20]; 596 struct 597 { 598 long x_zeroes; 599 long x_offset; 600 } x_n; 601 } x_file; 602 603 struct 604 { 605 long x_scnlen; /* section length */ 606 unsigned short x_nreloc; /* # relocation entries */ 607 unsigned short x_nlinno; /* # line numbers */ 608 unsigned long x_checksum; /* section COMDAT checksum for PE */ 609 unsigned short x_associated; /* COMDAT associated section index for PE */ 610 unsigned char x_comdat; /* COMDAT selection number for PE */ 611 } x_scn; 612 613 struct 614 { 615 long x_tvfill; /* tv fill value */ 616 unsigned short x_tvlen; /* length of .tv */ 617 unsigned short x_tvran[2]; /* tv range */ 618 } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ 619 620 /****************************************** 621 * RS/6000-specific auxent - last auxent for every external symbol 622 ******************************************/ 623 struct 624 { 625 union 626 { /* csect length or enclosing csect */ 627 bfd_signed_vma l; 628 struct coff_ptr_struct *p; 629 } x_scnlen; 630 long x_parmhash; /* parm type hash index */ 631 unsigned short x_snhash; /* sect num with parm hash */ 632 unsigned char x_smtyp; /* symbol align and type */ 633 /* 0-4 - Log 2 of alignment */ 634 /* 5-7 - symbol type */ 635 unsigned char x_smclas; /* storage mapping class */ 636 long x_stab; /* dbx stab info index */ 637 unsigned short x_snstab; /* sect num with dbx stab */ 638 } x_csect; /* csect definition information */ 639 640/* x_smtyp values: */ 641 642#define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */ 643#define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */ 644/* Symbol type values: */ 645#define XTY_ER 0 /* External reference */ 646#define XTY_SD 1 /* Csect definition */ 647#define XTY_LD 2 /* Label definition */ 648#define XTY_CM 3 /* .BSS */ 649#define XTY_EM 4 /* Error message */ 650#define XTY_US 5 /* "Reserved for internal use" */ 651 652/* x_smclas values: */ 653 654#define XMC_PR 0 /* Read-only program code */ 655#define XMC_RO 1 /* Read-only constant */ 656#define XMC_DB 2 /* Read-only debug dictionary table */ 657#define XMC_TC 3 /* Read-write general TOC entry */ 658#define XMC_UA 4 /* Read-write unclassified */ 659#define XMC_RW 5 /* Read-write data */ 660#define XMC_GL 6 /* Read-only global linkage */ 661#define XMC_XO 7 /* Read-only extended operation */ 662#define XMC_SV 8 /* Read-only supervisor call */ 663#define XMC_BS 9 /* Read-write BSS */ 664#define XMC_DS 10 /* Read-write descriptor csect */ 665#define XMC_UC 11 /* Read-write unnamed Fortran common */ 666#define XMC_TI 12 /* Read-only traceback index csect */ 667#define XMC_TB 13 /* Read-only traceback table csect */ 668/* 14 ??? */ 669#define XMC_TC0 15 /* Read-write TOC anchor */ 670#define XMC_TD 16 /* Read-write data in TOC */ 671 672 /****************************************** 673 * I960-specific *2nd* aux. entry formats 674 ******************************************/ 675 struct 676 { 677 /* This is a very old typo that keeps getting propagated. */ 678#define x_stdindx x_stindx 679 long x_stindx; /* sys. table entry */ 680 } x_sc; /* system call entry */ 681 682 struct 683 { 684 unsigned long x_balntry; /* BAL entry point */ 685 } x_bal; /* BAL-callable function */ 686 687 struct 688 { 689 unsigned long x_timestamp; /* time stamp */ 690 char x_idstring[20]; /* producer identity string */ 691 } x_ident; /* Producer ident info */ 692 693}; 694 695/********************** RELOCATION DIRECTIVES **********************/ 696 697struct internal_reloc 698{ 699 bfd_vma r_vaddr; /* Virtual address of reference */ 700 long r_symndx; /* Index into symbol table */ 701 unsigned short r_type; /* Relocation type */ 702 unsigned char r_size; /* Used by RS/6000 and ECOFF */ 703 unsigned char r_extern; /* Used by ECOFF */ 704 unsigned long r_offset; /* Used by Alpha ECOFF, SPARC, others */ 705}; 706 707/* X86-64 relocations. */ 708#define R_AMD64_ABS 0 /* Reference is absolute, no relocation is necessary. */ 709#define R_AMD64_DIR64 1 /* 64-bit address (VA). */ 710#define R_AMD64_DIR32 2 /* 32-bit address (VA) R_DIR32. */ 711#define R_AMD64_IMAGEBASE 3 /* 32-bit absolute ref w/o base R_IMAGEBASE. */ 712#define R_AMD64_PCRLONG 4 /* 32-bit relative address from byte following reloc R_PCRLONG. */ 713#define R_AMD64_PCRLONG_1 5 /* 32-bit relative address from byte distance 1 from reloc. */ 714#define R_AMD64_PCRLONG_2 6 /* 32-bit relative address from byte distance 2 from reloc. */ 715#define R_AMD64_PCRLONG_3 7 /* 32-bit relative address from byte distance 3 from reloc. */ 716#define R_AMD64_PCRLONG_4 8 /* 32-bit relative address from byte distance 4 from reloc. */ 717#define R_AMD64_PCRLONG_5 9 /* 32-bit relative address from byte distance 5 from reloc. */ 718#define R_AMD64_SECTION 10 /* Section index. */ 719#define R_AMD64_SECREL 11 /* 32 bit offset from base of section containing target R_SECREL. */ 720#define R_AMD64_SECREL7 12 /* 7 bit unsigned offset from base of section containing target. */ 721#define R_AMD64_TOKEN 13 /* 32 bit metadata token. */ 722#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. */ 723 724/* i386 Relocations. */ 725 726#define R_DIR16 1 727#define R_REL24 5 728#define R_DIR32 6 729#define R_IMAGEBASE 7 730#define R_SECREL32 11 731#define R_RELBYTE 15 732#define R_RELWORD 16 733#define R_RELLONG 17 734#define R_PCRBYTE 18 735#define R_PCRWORD 19 736#define R_PCRLONG 20 737#define R_PCR24 21 738#define R_IPRSHORT 24 739#define R_IPRLONG 26 740#define R_GETSEG 29 741#define R_GETPA 30 742#define R_TAGWORD 31 743#define R_JUMPTARG 32 /* strange 29k 00xx00xx reloc */ 744#define R_PARTLS16 32 745#define R_PARTMS8 33 746 747#define R_PCR16L 128 748#define R_PCR26L 129 749#define R_VRT16 130 750#define R_HVRT16 131 751#define R_LVRT16 132 752#define R_VRT32 133 753 754 755/* This reloc identifies mov.b instructions with a 16bit absolute 756 address. The linker tries to turn insns with this reloc into 757 an absolute 8-bit address. */ 758#define R_MOV16B1 0x41 759 760/* This reloc identifies mov.b instructions which had a 16bit 761 absolute address which have been shortened into a 8-bit 762 absolute address. */ 763#define R_MOV16B2 0x42 764 765/* This reloc identifies jmp insns with a 16bit target address; 766 the linker tries to turn these insns into bra insns with 767 an 8bit pc-relative target. */ 768#define R_JMP1 0x43 769 770/* This reloc identifies a bra with an 8-bit pc-relative 771 target that was formerly a jmp insn with a 16bit target. */ 772#define R_JMP2 0x44 773 774/* ??? */ 775#define R_RELLONG_NEG 0x45 776 777/* This reloc identifies jmp insns with a 24bit target address; 778 the linker tries to turn these insns into bra insns with 779 an 8bit pc-relative target. */ 780#define R_JMPL1 0x46 781 782/* This reloc identifies a bra with an 8-bit pc-relative 783 target that was formerly a jmp insn with a 24bit target. */ 784#define R_JMPL2 0x47 785 786/* This reloc identifies mov.b instructions with a 24bit absolute 787 address. The linker tries to turn insns with this reloc into 788 an absolute 8-bit address. */ 789 790#define R_MOV24B1 0x48 791 792/* This reloc identifies mov.b instructions which had a 24bit 793 absolute address which have been shortened into a 8-bit 794 absolute address. */ 795#define R_MOV24B2 0x49 796 797/* An h8300 memory indirect jump/call. Forces the address of the jump/call 798 target into the function vector (in page zero), and the address of the 799 vector entry to be placed in the jump/call instruction. */ 800#define R_MEM_INDIRECT 0x4a 801 802/* This reloc identifies a 16bit pc-relative branch target which was 803 shortened into an 8bit pc-relative branch target. */ 804#define R_PCRWORD_B 0x4b 805 806/* This reloc identifies mov.[wl] instructions with a 32/24 bit 807 absolute address; the linker may turn this into a mov.[wl] 808 insn with a 16bit absolute address. */ 809#define R_MOVL1 0x4c 810 811/* This reloc identifies mov.[wl] insns which formerly had 812 a 32/24bit absolute address and now have a 16bit absolute address. */ 813#define R_MOVL2 0x4d 814 815/* This reloc identifies a bCC:8 which will have it's condition 816 inverted and its target redirected to the target of the branch 817 in the following insn. */ 818#define R_BCC_INV 0x4e 819 820/* This reloc identifies a jmp instruction that has been deleted. */ 821#define R_JMP_DEL 0x4f 822 823/* Z8k modes */ 824#define R_IMM16 0x01 /* 16 bit abs */ 825#define R_JR 0x02 /* jr 8 bit disp */ 826#define R_IMM4L 0x23 /* low nibble */ 827#define R_IMM8 0x22 /* 8 bit abs */ 828#define R_IMM32 R_RELLONG /* 32 bit abs */ 829#define R_CALL R_DA /* Absolute address which could be a callr */ 830#define R_JP R_DA /* Absolute address which could be a jp */ 831#define R_REL16 0x04 /* 16 bit PC rel */ 832#define R_CALLR 0x05 /* callr 12 bit disp */ 833#define R_SEG 0x10 /* set if in segmented mode */ 834#define R_IMM4H 0x24 /* high nibble */ 835#define R_DISP7 0x25 /* djnz displacement */ 836 837/* Z80 modes */ 838#define R_OFF8 0x32 /* 8 bit signed abs, for (i[xy]+d) */ 839#define R_IMM24 0x33 /* 24 bit abs */ 840/* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */ 841 842/* H8500 modes */ 843 844#define R_H8500_IMM8 1 /* 8 bit immediate */ 845#define R_H8500_IMM16 2 /* 16 bit immediate */ 846#define R_H8500_PCREL8 3 /* 8 bit pcrel */ 847#define R_H8500_PCREL16 4 /* 16 bit pcrel */ 848#define R_H8500_HIGH8 5 /* high 8 bits of 24 bit address */ 849#define R_H8500_LOW16 7 /* low 16 bits of 24 bit immediate */ 850#define R_H8500_IMM24 6 /* 24 bit immediate */ 851#define R_H8500_IMM32 8 /* 32 bit immediate */ 852#define R_H8500_HIGH16 9 /* high 16 bits of 32 bit immediate */ 853 854/* W65 modes */ 855 856#define R_W65_ABS8 1 /* addr & 0xff */ 857#define R_W65_ABS16 2 /* addr & 0xffff */ 858#define R_W65_ABS24 3 /* addr & 0xffffff */ 859 860#define R_W65_ABS8S8 4 /* (addr >> 8) & 0xff */ 861#define R_W65_ABS8S16 5 /* (addr >> 16) & 0xff */ 862 863#define R_W65_ABS16S8 6 /* (addr >> 8) & 0ffff */ 864#define R_W65_ABS16S16 7 /* (addr >> 16) & 0ffff */ 865 866#define R_W65_PCR8 8 867#define R_W65_PCR16 9 868 869#define R_W65_DP 10 /* direct page 8 bits only */ 870 871#endif /* GNU_COFF_INTERNAL_H */ 872