174274Srwatson/* Internal format of COFF object file data structures, for GNU BFD. 274274Srwatson This file is part of BFD, the Binary File Descriptor library. 374274Srwatson 474274Srwatson Copyright 1999, 2000, 2001, 2002, 2003, 2004. 2005, 2006, 2007, 2009 574274Srwatson Free Software Foundation, Inc. 674274Srwatson 774274Srwatson This program is free software; you can redistribute it and/or modify 874274Srwatson it under the terms of the GNU General Public License as published by 974274Srwatson the Free Software Foundation; either version 2 of the License, or 1074274Srwatson (at your option) any later version. 1174274Srwatson 1274274Srwatson This program is distributed in the hope that it will be useful, 1374274Srwatson but WITHOUT ANY WARRANTY; without even the implied warranty of 1474274Srwatson MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1574274Srwatson GNU General Public License for more details. 1674274Srwatson 1774274Srwatson You should have received a copy of the GNU General Public License 1874274Srwatson along with this program; if not, write to the Free Software 1974274Srwatson Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 2074274Srwatson 2174274Srwatson#ifndef GNU_COFF_INTERNAL_H 2274274Srwatson#define GNU_COFF_INTERNAL_H 1 2374274Srwatson 2474274Srwatson/* First, make "signed char" work, even on old compilers. */ 2574274Srwatson#ifndef signed 2692986Sobrien#ifndef __STDC__ 2792986Sobrien#define signed /**/ 2892986Sobrien#endif 2984225Sdillon#endif 3084225Sdillon 3184225Sdillon/********************** FILE HEADER **********************/ 3284225Sdillon 3374274Srwatson/* extra stuff in a PE header. */ 3474274Srwatson 3574274Srwatsonstruct internal_extra_pe_filehdr 3674274Srwatson{ 37150065Sstefanf /* DOS header data follows for PE stuff */ 3874274Srwatson unsigned short e_magic; /* Magic number, 0x5a4d */ 3974274Srwatson unsigned short e_cblp; /* Bytes on last page of file, 0x90 */ 4074274Srwatson unsigned short e_cp; /* Pages in file, 0x3 */ 4174436Srwatson unsigned short e_crlc; /* Relocations, 0x0 */ 4274274Srwatson unsigned short e_cparhdr; /* Size of header in paragraphs, 0x4 */ 4374274Srwatson unsigned short e_minalloc; /* Minimum extra paragraphs needed, 0x0 */ 4474436Srwatson unsigned short e_maxalloc; /* Maximum extra paragraphs needed, 0xFFFF */ 4574274Srwatson unsigned short e_ss; /* Initial (relative) SS value, 0x0 */ 4691428Sgreen unsigned short e_sp; /* Initial SP value, 0xb8 */ 4774274Srwatson unsigned short e_csum; /* Checksum, 0x0 */ 4874274Srwatson unsigned short e_ip; /* Initial IP value, 0x0 */ 4974274Srwatson unsigned short e_cs; /* Initial (relative) CS value, 0x0 */ 5074274Srwatson unsigned short e_lfarlc; /* File address of relocation table, 0x40 */ 5191428Sgreen unsigned short e_ovno; /* Overlay number, 0x0 */ 5274274Srwatson unsigned short e_res[4]; /* Reserved words, all 0x0 */ 5374274Srwatson unsigned short e_oemid; /* OEM identifier (for e_oeminfo), 0x0 */ 5474274Srwatson unsigned short e_oeminfo; /* OEM information; e_oemid specific, 0x0 */ 5574274Srwatson unsigned short e_res2[10]; /* Reserved words, all 0x0 */ 5674274Srwatson bfd_vma e_lfanew; /* File address of new exe header, 0x80 */ 5774274Srwatson unsigned long dos_message[16]; /* text which always follows dos header */ 5874274Srwatson bfd_vma nt_signature; /* required NT signature, 0x4550 */ 5974274Srwatson}; 6074274Srwatson 6174274Srwatson#define GO32_STUBSIZE 2048 6274436Srwatson 6374274Srwatsonstruct internal_filehdr 6474274Srwatson{ 6574274Srwatson struct internal_extra_pe_filehdr pe; 6674436Srwatson 6774436Srwatson /* coff-stgo32 EXE stub header before BFD tdata has been allocated. 6874274Srwatson Its data is kept in INTERNAL_FILEHDR.GO32STUB afterwards. 6974274Srwatson 7074436Srwatson F_GO32STUB is set iff go32stub contains a valid data. Artifical headers 7174436Srwatson created in BFD have no pre-set go32stub. */ 7274274Srwatson char go32stub[GO32_STUBSIZE]; 7374274Srwatson 7474274Srwatson /* Standard coff internal info. */ 7574274Srwatson unsigned short f_magic; /* magic number */ 7674274Srwatson unsigned short f_nscns; /* number of sections */ 7774274Srwatson 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