1 /* Internal format of XCOFF object file data structures for BFD. 2 3 Copyright (C) 1995-2021 Free Software Foundation, Inc. 4 Written by Ian Lance Taylor <ian@cygnus.com>, Cygnus Support. 5 6 This file is part of BFD, the Binary File Descriptor library. 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program; if not, write to the Free Software 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 21 MA 02110-1301, USA. */ 22 23 #ifndef _INTERNAL_XCOFF_H 24 #define _INTERNAL_XCOFF_H 25 26 /* XCOFF specific f_flags. */ 27 28 /* File was profiled with fdpr. */ 29 #define F_FDPR_PROF 0x0010 30 31 /* File was reordered with fdpr. */ 32 #define F_FDPR_OPTI 0x0020 33 34 /* File use very large program support. */ 35 #define F_DSA 0x0040 36 37 /* One aux header specifying medium page sizes is non-zero. */ 38 #define F_VARPG 0x0100 39 40 /* Read/write sections are non-executable. */ 41 #define F_NONEXEC 0x8000 42 43 /* Linker */ 44 45 /* Names of "special" sections. */ 46 #define _TEXT ".text" 47 #define _DATA ".data" 48 #define _BSS ".bss" 49 #define _TDATA ".tdata" 50 #define _TBSS ".tbss" 51 #define _PAD ".pad" 52 #define _LOADER ".loader" 53 #define _EXCEPT ".except" 54 #define _TYPCHK ".typchk" 55 56 /* XCOFF uses special .dwXXX sections with the type STYP_DWARF. */ 57 #define STYP_DWARF 0x0010 58 59 /* High-order 16-bits dwarf subtypes. */ 60 #define SSUBTYP_DWINFO 0x10000 61 #define SSUBTYP_DWLINE 0x20000 62 #define SSUBTYP_DWPBNMS 0x30000 63 #define SSUBTYP_DWPBTYP 0x40000 64 #define SSUBTYP_DWARNGE 0x50000 65 #define SSUBTYP_DWABREV 0x60000 66 #define SSUBTYP_DWSTR 0x70000 67 #define SSUBTYP_DWRNGES 0x80000 68 #define SSUBTYP_DWLOC 0x90000 69 #define SSUBTYP_DWFRAME 0xA0000 70 #define SSUBTYP_DWMAC 0xB0000 71 72 /* XCOFF uses a special .loader section with type STYP_LOADER. */ 73 #define STYP_LOADER 0x1000 74 75 /* Specifies an exception section. A section of this type provides 76 information to identify the reason that a trap or ececptin occured within 77 and executable object program */ 78 #define STYP_EXCEPT 0x0100 79 80 /* Specifies an initialized thread-local data section. */ 81 #define STYP_TDATA 0x0400 82 83 /* Specifies an uninitialized thread-local data section. */ 84 #define STYP_TBSS 0x0800 85 86 /* XCOFF uses a special .debug section with type STYP_DEBUG. */ 87 #define STYP_DEBUG 0x2000 88 89 /* Specifies a type check section. A section of this type contains parameter 90 argument type check strings used by the AIX binder. */ 91 #define STYP_TYPCHK 0x4000 92 93 /* XCOFF handles line number or relocation overflow by creating 94 another section header with STYP_OVRFLO set. */ 95 #define STYP_OVRFLO 0x8000 96 97 #define RS6K_AOUTHDR_OMAGIC 0x0107 /* old: text & data writeable */ 98 #define RS6K_AOUTHDR_NMAGIC 0x0108 /* new: text r/o, data r/w */ 99 #define RS6K_AOUTHDR_ZMAGIC 0x010B /* paged: text r/o, both page-aligned */ 100 101 /* Flags for aouthdr o_flags */ 102 #define RS6K_AOUTHDR_TLS_LE 0x80 /* TLS local-exec code was generated */ 103 #define RS6K_AOUTHDR_RAS 0x40 /* kernel module is key & recovery safe */ 104 #define RS6K_AOUTHDR_ALGNTDATA 0xf /* TLS alignment */ 105 106 /* Flags for aouthdr o_x64flags */ 107 #define RS6K_AOUTHDR_SHR_SYMTAB 0x8000 108 #define RS6K_AOUTHDR_FORK_POLICY 0x4000 109 #define RS6K_AOUTHDR_FORK_COR 0x2000 110 111 112 /* XCOFF relocation types. 113 The relocations are described in the function 114 xcoff[64]_ppc_relocate_section in coff64-rs6000.c and coff-rs6000.c */ 115 116 #define R_POS (0x00) 117 #define R_NEG (0x01) 118 #define R_REL (0x02) 119 #define R_TOC (0x03) 120 #define R_TRL (0x04) 121 #define R_GL (0x05) 122 #define R_TCL (0x06) 123 #define R_BA (0x08) 124 #define R_BR (0x0a) 125 #define R_RL (0x0c) 126 #define R_RLA (0x0d) 127 #define R_REF (0x0f) 128 #define R_TRLA (0x13) 129 #define R_RRTBI (0x14) 130 #define R_RRTBA (0x15) 131 #define R_CAI (0x16) 132 #define R_CREL (0x17) 133 #define R_RBA (0x18) 134 #define R_RBAC (0x19) 135 #define R_RBR (0x1a) 136 #define R_RBRC (0x1b) 137 #define R_TLS (0x20) 138 #define R_TLS_IE (0x21) 139 #define R_TLS_LD (0x22) 140 #define R_TLS_LE (0x23) 141 #define R_TLSM (0x24) 142 #define R_TLSML (0x25) 143 #define R_TOCU (0x30) 144 #define R_TOCL (0x31) 145 146 /* Storage class #defines, from /usr/include/storclass.h that are not already 147 defined in internal.h */ 148 149 /* Comment string in .info section */ 150 #define C_INFO 110 151 152 /* Dwarf symbol. */ 153 #define C_DWARF 112 154 155 /* Auxillary Symbol Entries */ 156 157 /* x_smtyp values: */ 158 #define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */ 159 #define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */ 160 /* Symbol type values: */ 161 #define XTY_ER 0 /* External reference */ 162 #define XTY_SD 1 /* Csect definition */ 163 #define XTY_LD 2 /* Label definition */ 164 #define XTY_CM 3 /* .BSS */ 165 #define XTY_EM 4 /* Error message */ 166 #define XTY_US 5 /* "Reserved for internal use" */ 167 168 /* x_smclas values: */ 169 #define XMC_PR 0 /* Read-only program code */ 170 #define XMC_RO 1 /* Read-only constant */ 171 #define XMC_DB 2 /* Read-only debug dictionary table */ 172 #define XMC_TC 3 /* Read-write general TOC entry */ 173 #define XMC_UA 4 /* Read-write unclassified */ 174 #define XMC_RW 5 /* Read-write data */ 175 #define XMC_GL 6 /* Read-only global linkage */ 176 #define XMC_XO 7 /* Read-only extended operation */ 177 #define XMC_SV 8 /* Read-only supervisor call */ 178 #define XMC_BS 9 /* Read-write BSS */ 179 #define XMC_DS 10 /* Read-write descriptor csect */ 180 #define XMC_UC 11 /* Read-write unnamed Fortran common */ 181 #define XMC_TI 12 /* Read-only traceback index csect */ 182 #define XMC_TB 13 /* Read-only traceback table csect */ 183 /* 14 ??? */ 184 #define XMC_TC0 15 /* Read-write TOC anchor */ 185 #define XMC_TD 16 /* Read-write data in TOC */ 186 #define XMC_SV64 17 /* Read-only 64 bit supervisor call */ 187 #define XMC_SV3264 18 /* Read-only 32 or 64 bit supervisor call */ 188 /* 19 ??? */ 189 #define XMC_TL 20 /* Read-write initialized TLS data */ 190 #define XMC_UL 21 /* Read-write uninitialized TLS data */ 191 #define XMC_TE 22 /* Same as XMC_TC but mapped after it */ 192 193 /* The ldhdr structure. This appears at the start of the .loader 194 section. */ 195 196 struct internal_ldhdr 197 { 198 /* The version number: 199 1 : 32 bit 200 2 : 64 bit */ 201 unsigned long l_version; 202 203 /* The number of symbol table entries. */ 204 bfd_size_type l_nsyms; 205 206 /* The number of relocation table entries. */ 207 bfd_size_type l_nreloc; 208 209 /* The length of the import file string table. */ 210 bfd_size_type l_istlen; 211 212 /* The number of import files. */ 213 bfd_size_type l_nimpid; 214 215 /* The offset from the start of the .loader section to the first 216 entry in the import file table. */ 217 bfd_size_type l_impoff; 218 219 /* The length of the string table. */ 220 bfd_size_type l_stlen; 221 222 /* The offset from the start of the .loader section to the first 223 entry in the string table. */ 224 bfd_size_type l_stoff; 225 226 /* The offset to start of the symbol table, only in XCOFF64 */ 227 bfd_vma l_symoff; 228 229 /* The offset to the start of the relocation table, only in XCOFF64 */ 230 bfd_vma l_rldoff; 231 }; 232 233 /* The ldsym structure. This is used to represent a symbol in the 234 .loader section. */ 235 236 struct internal_ldsym 237 { 238 union 239 { 240 /* The symbol name if <= SYMNMLEN characters. */ 241 char _l_name[SYMNMLEN]; 242 struct 243 { 244 /* Zero if the symbol name is more than SYMNMLEN characters. */ 245 long _l_zeroes; 246 247 /* The offset in the string table if the symbol name is more 248 than SYMNMLEN characters. */ 249 long _l_offset; 250 } 251 _l_l; 252 } 253 _l; 254 255 /* The symbol value. */ 256 bfd_vma l_value; 257 258 /* The symbol section number. */ 259 short l_scnum; 260 261 /* The symbol type and flags. */ 262 char l_smtype; 263 264 /* The symbol storage class. */ 265 char l_smclas; 266 267 /* The import file ID. */ 268 bfd_size_type l_ifile; 269 270 /* Offset to the parameter type check string. */ 271 bfd_size_type l_parm; 272 }; 273 274 /* These flags are for the l_smtype field (the lower three bits are an 275 XTY_* value). */ 276 277 /* Imported symbol. */ 278 #define L_IMPORT (0x40) 279 /* Entry point. */ 280 #define L_ENTRY (0x20) 281 /* Exported symbol. */ 282 #define L_EXPORT (0x10) 283 /* Weak symbol. */ 284 #define L_WEAK (0x08) 285 286 /* The ldrel structure. This is used to represent a reloc in the 287 .loader section. */ 288 289 struct internal_ldrel 290 { 291 /* The reloc address. */ 292 bfd_vma l_vaddr; 293 294 /* The symbol table index in the .loader section symbol table. */ 295 bfd_size_type l_symndx; 296 297 /* The relocation type and size. */ 298 short l_rtype; 299 300 /* The section number this relocation applies to. */ 301 short l_rsecnm; 302 }; 303 304 /* An entry in the XCOFF linker hash table. */ 305 struct xcoff_link_hash_entry 306 { 307 struct bfd_link_hash_entry root; 308 309 /* Symbol index in output file. Set to -1 initially. Set to -2 if 310 there is a reloc against this symbol. */ 311 long indx; 312 313 /* If we have created a TOC entry for this symbol, this is the .tc 314 section which holds it. */ 315 asection *toc_section; 316 317 union 318 { 319 /* If we have created a TOC entry (the XCOFF_SET_TOC flag is 320 set), this is the offset in toc_section. */ 321 bfd_vma toc_offset; 322 323 /* If the TOC entry comes from an input file, this is set to the 324 symbol index of the C_HIDEXT XMC_TC or XMC_TD symbol. */ 325 long toc_indx; 326 } 327 u; 328 329 /* If this symbol is a function entry point which is called, this 330 field holds a pointer to the function descriptor. If this symbol 331 is a function descriptor, this field holds a pointer to the 332 function entry point. */ 333 struct xcoff_link_hash_entry *descriptor; 334 335 /* The .loader symbol table entry, if there is one. */ 336 struct internal_ldsym *ldsym; 337 338 /* If XCOFF_BUILT_LDSYM is set, this is the .loader symbol table 339 index. If XCOFF_BUILD_LDSYM is clear, and XCOFF_IMPORT is set, 340 this is the l_ifile value. */ 341 long ldindx; 342 343 /* Some linker flags. */ 344 unsigned long flags; 345 346 /* The storage mapping class. */ 347 unsigned char smclas; 348 }; 349 350 /* Flags for xcoff_link_hash_entry. */ 351 352 /* Symbol is referenced by a regular object. */ 353 #define XCOFF_REF_REGULAR 0x00000001 354 /* Symbol is defined by a regular object. */ 355 #define XCOFF_DEF_REGULAR 0x00000002 356 /* Symbol is defined by a dynamic object. */ 357 #define XCOFF_DEF_DYNAMIC 0x00000004 358 /* Symbol is used in a reloc being copied into the .loader section. */ 359 #define XCOFF_LDREL 0x00000008 360 /* Symbol is the entry point. */ 361 #define XCOFF_ENTRY 0x00000010 362 /* Symbol is for a function and is the target of a relocation. 363 The relocation may or may not be a branch-type relocation. */ 364 #define XCOFF_CALLED 0x00000020 365 /* Symbol needs the TOC entry filled in. */ 366 #define XCOFF_SET_TOC 0x00000040 367 /* Symbol is implicitly or explicitly imported. */ 368 #define XCOFF_IMPORT 0x00000080 369 /* Symbol is explicitly exported. */ 370 #define XCOFF_EXPORT 0x00000100 371 /* Symbol has been processed by xcoff_build_ldsyms. */ 372 #define XCOFF_BUILT_LDSYM 0x00000200 373 /* Symbol is mentioned by a section which was not garbage collected. */ 374 #define XCOFF_MARK 0x00000400 375 /* Symbol size is recorded in size_list list from hash table. */ 376 #define XCOFF_HAS_SIZE 0x00000800 377 /* Symbol is a function descriptor. */ 378 #define XCOFF_DESCRIPTOR 0x00001000 379 /* Multiple definitions have been for the symbol. */ 380 #define XCOFF_MULTIPLY_DEFINED 0x00002000 381 /* Symbol is the __rtinit symbol. */ 382 #define XCOFF_RTINIT 0x00004000 383 /* Symbol is an imported 32 bit syscall. */ 384 #define XCOFF_SYSCALL32 0x00008000 385 /* Symbol is an imported 64 bit syscall. */ 386 #define XCOFF_SYSCALL64 0x00010000 387 /* Symbol was not explicitly defined by the time it was marked. */ 388 #define XCOFF_WAS_UNDEFINED 0x00020000 389 /* We have assigned an output XCOFF entry to this symbol. */ 390 #define XCOFF_ALLOCATED 0x00040000 391 392 /* The XCOFF linker hash table. */ 393 394 #define XCOFF_NUMBER_OF_SPECIAL_SECTIONS 6 395 #define XCOFF_SPECIAL_SECTION_TEXT 0 396 #define XCOFF_SPECIAL_SECTION_ETEXT 1 397 #define XCOFF_SPECIAL_SECTION_DATA 2 398 #define XCOFF_SPECIAL_SECTION_EDATA 3 399 #define XCOFF_SPECIAL_SECTION_END 4 400 #define XCOFF_SPECIAL_SECTION_END2 5 401 402 /* These flags indicate which of -bexpall and -bexpfull are in effect. */ 403 #define XCOFF_EXPALL 1 404 #define XCOFF_EXPFULL 2 405 406 /* This structure is used to pass information through 407 xcoff_link_hash_traverse. */ 408 409 struct xcoff_loader_info 410 { 411 /* Set if a problem occurred. */ 412 bool failed; 413 414 /* Output BFD. */ 415 bfd *output_bfd; 416 417 /* Link information structure. */ 418 struct bfd_link_info *info; 419 420 /* A mask of XCOFF_EXPALL and XCOFF_EXPFULL flags. */ 421 unsigned int auto_export_flags; 422 423 /* Number of ldsym structures. */ 424 size_t ldsym_count; 425 426 /* Size of string table. */ 427 size_t string_size; 428 429 /* String table. */ 430 char *strings; 431 432 /* Allocated size of string table. */ 433 size_t string_alc; 434 }; 435 436 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value 437 from smaller values. Start with zero, widen, *then* decrement. */ 438 #define MINUS_ONE (((bfd_vma) 0) - 1) 439 440 /* __rtinit, from /usr/include/rtinit.h. */ 441 struct __rtinit 442 { 443 /* Pointer to runtime linker. 444 XXX: Is the parameter really void? */ 445 int (*rtl) (void); 446 447 /* Offset to array of init functions, 0 if none. */ 448 int init_offset; 449 450 /* Offset to array of fini functions, 0 if none. */ 451 int fini_offset; 452 453 /* Size of __RTINIT_DESCRIPTOR. This value should be used instead of 454 sizeof(__RTINIT_DESCRIPTOR). */ 455 int __rtinit_descriptor_size; 456 }; 457 458 #define RTINIT_DESCRIPTOR_SIZE (12) 459 460 struct __rtinit_descriptor 461 { 462 /* Init/fini function. */ 463 int f; 464 465 /* Offset, relative to the start of the __rtinit symbol, to name of the 466 function. */ 467 468 int name_offset; 469 470 /* Flags */ 471 unsigned char flags; 472 }; 473 474 /* Archive */ 475 476 #define XCOFFARMAG "<aiaff>\012" 477 #define XCOFFARMAGBIG "<bigaf>\012" 478 #define SXCOFFARMAG 8 479 480 /* The size of the ascii archive elements */ 481 #define XCOFFARMAG_ELEMENT_SIZE 12 482 #define XCOFFARMAGBIG_ELEMENT_SIZE 20 483 484 /* This terminates an XCOFF archive member name. */ 485 486 #define XCOFFARFMAG "`\012" 487 #define SXCOFFARFMAG 2 488 489 /* XCOFF archives start with this (printable) structure. */ 490 491 struct xcoff_ar_file_hdr 492 { 493 /* Magic string. */ 494 char magic[SXCOFFARMAG]; 495 496 /* Offset of the member table (decimal ASCII string). */ 497 char memoff[XCOFFARMAG_ELEMENT_SIZE]; 498 499 /* Offset of the global symbol table (decimal ASCII string). */ 500 char symoff[XCOFFARMAG_ELEMENT_SIZE]; 501 502 /* Offset of the first member in the archive (decimal ASCII string). */ 503 char firstmemoff[XCOFFARMAG_ELEMENT_SIZE]; 504 505 /* Offset of the last member in the archive (decimal ASCII string). */ 506 char lastmemoff[XCOFFARMAG_ELEMENT_SIZE]; 507 508 /* Offset of the first member on the free list (decimal ASCII 509 string). */ 510 char freeoff[XCOFFARMAG_ELEMENT_SIZE]; 511 }; 512 513 #define SIZEOF_AR_FILE_HDR (SXCOFFARMAG + 5 * XCOFFARMAG_ELEMENT_SIZE) 514 515 /* This is the equivalent data structure for the big archive format. */ 516 517 struct xcoff_ar_file_hdr_big 518 { 519 /* Magic string. */ 520 char magic[SXCOFFARMAG]; 521 522 /* Offset of the member table (decimal ASCII string). */ 523 char memoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 524 525 /* Offset of the global symbol table for 32-bit objects (decimal ASCII 526 string). */ 527 char symoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 528 529 /* Offset of the global symbol table for 64-bit objects (decimal ASCII 530 string). */ 531 char symoff64[XCOFFARMAGBIG_ELEMENT_SIZE]; 532 533 /* Offset of the first member in the archive (decimal ASCII string). */ 534 char firstmemoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 535 536 /* Offset of the last member in the archive (decimal ASCII string). */ 537 char lastmemoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 538 539 /* Offset of the first member on the free list (decimal ASCII 540 string). */ 541 char freeoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 542 }; 543 544 #define SIZEOF_AR_FILE_HDR_BIG (SXCOFFARMAG + 6 * XCOFFARMAGBIG_ELEMENT_SIZE) 545 546 /* Each XCOFF archive member starts with this (printable) structure. */ 547 548 struct xcoff_ar_hdr 549 { 550 /* File size not including the header (decimal ASCII string). */ 551 char size[XCOFFARMAG_ELEMENT_SIZE]; 552 553 /* File offset of next archive member (decimal ASCII string). */ 554 char nextoff[XCOFFARMAG_ELEMENT_SIZE]; 555 556 /* File offset of previous archive member (decimal ASCII string). */ 557 char prevoff[XCOFFARMAG_ELEMENT_SIZE]; 558 559 /* File mtime (decimal ASCII string). */ 560 char date[12]; 561 562 /* File UID (decimal ASCII string). */ 563 char uid[12]; 564 565 /* File GID (decimal ASCII string). */ 566 char gid[12]; 567 568 /* File mode (octal ASCII string). */ 569 char mode[12]; 570 571 /* Length of file name (decimal ASCII string). */ 572 char namlen[4]; 573 574 /* This structure is followed by the file name. The length of the 575 name is given in the namlen field. If the length of the name is 576 odd, the name is followed by a null byte. The name and optional 577 null byte are followed by XCOFFARFMAG, which is not included in 578 namlen. The contents of the archive member follow; the number of 579 bytes is given in the size field. */ 580 }; 581 582 #define SIZEOF_AR_HDR (3 * XCOFFARMAG_ELEMENT_SIZE + 4 * 12 + 4) 583 584 /* The equivalent for the big archive format. */ 585 586 struct xcoff_ar_hdr_big 587 { 588 /* File size not including the header (decimal ASCII string). */ 589 char size[XCOFFARMAGBIG_ELEMENT_SIZE]; 590 591 /* File offset of next archive member (decimal ASCII string). */ 592 char nextoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 593 594 /* File offset of previous archive member (decimal ASCII string). */ 595 char prevoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 596 597 /* File mtime (decimal ASCII string). */ 598 char date[12]; 599 600 /* File UID (decimal ASCII string). */ 601 char uid[12]; 602 603 /* File GID (decimal ASCII string). */ 604 char gid[12]; 605 606 /* File mode (octal ASCII string). */ 607 char mode[12]; 608 609 /* Length of file name (decimal ASCII string). */ 610 char namlen[4]; 611 612 /* This structure is followed by the file name. The length of the 613 name is given in the namlen field. If the length of the name is 614 odd, the name is followed by a null byte. The name and optional 615 null byte are followed by XCOFFARFMAG, which is not included in 616 namlen. The contents of the archive member follow; the number of 617 bytes is given in the size field. */ 618 }; 619 620 #define SIZEOF_AR_HDR_BIG (3 * XCOFFARMAGBIG_ELEMENT_SIZE + 4 * 12 + 4) 621 622 /* We often have to distinguish between the old and big file format. 623 Make it a bit cleaner. We can use `xcoff_ardata' here because the 624 `hdr' member has the same size and position in both formats. 625 <bigaf> is the default format, return TRUE even when xcoff_ardata is 626 NULL. */ 627 #ifndef SMALL_ARCHIVE 628 /* Creates big archives by default */ 629 #define xcoff_big_format_p(abfd) \ 630 ((NULL != bfd_ardata (abfd) && NULL == xcoff_ardata (abfd)) || \ 631 ((NULL != bfd_ardata (abfd)) && \ 632 (NULL != xcoff_ardata (abfd)) && \ 633 (xcoff_ardata (abfd)->magic[1] == 'b'))) 634 #else 635 /* Creates small archives by default. */ 636 #define xcoff_big_format_p(abfd) \ 637 (((NULL != bfd_ardata (abfd)) && \ 638 (NULL != xcoff_ardata (abfd)) && \ 639 (xcoff_ardata (abfd)->magic[1] == 'b'))) 640 #endif 641 642 /* We store a copy of the xcoff_ar_file_hdr in the tdata field of the 643 artdata structure. Similar for the big archive. */ 644 #define xcoff_ardata(abfd) \ 645 ((struct xcoff_ar_file_hdr *) bfd_ardata (abfd)->tdata) 646 #define xcoff_ardata_big(abfd) \ 647 ((struct xcoff_ar_file_hdr_big *) bfd_ardata (abfd)->tdata) 648 649 /* We store a copy of the xcoff_ar_hdr in the arelt_data field of an 650 archive element. Similar for the big archive. */ 651 #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data)) 652 #define arch_xhdr(bfd) \ 653 ((struct xcoff_ar_hdr *) arch_eltdata (bfd)->arch_header) 654 #define arch_xhdr_big(bfd) \ 655 ((struct xcoff_ar_hdr_big *) arch_eltdata (bfd)->arch_header) 656 657 /* True if symbols of class CLASS are external. */ 658 #define EXTERN_SYM_P(CLASS) \ 659 ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT) 660 661 #endif /* _INTERNAL_XCOFF_H */ 662