1 /* Internal format of XCOFF object file data structures for BFD. 2 3 Copyright (C) 1995-2024 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 /* x_ftype values: */ 194 #define XFT_FN 0 /* Specifies the source-file name */ 195 #define XFT_CT 1 /* Specifies the compiler time stamp */ 196 #define XFT_CV 2 /* Specifies the compiler version number */ 197 #define XFT_CD 128 /*Specifies compiler-defined information */ 198 199 /* The ldhdr structure. This appears at the start of the .loader 200 section. */ 201 202 struct internal_ldhdr 203 { 204 /* The version number: 205 1 : 32 bit 206 2 : 64 bit */ 207 unsigned long l_version; 208 209 /* The number of symbol table entries. */ 210 bfd_size_type l_nsyms; 211 212 /* The number of relocation table entries. */ 213 bfd_size_type l_nreloc; 214 215 /* The length of the import file string table. */ 216 bfd_size_type l_istlen; 217 218 /* The number of import files. */ 219 bfd_size_type l_nimpid; 220 221 /* The offset from the start of the .loader section to the first 222 entry in the import file table. */ 223 bfd_size_type l_impoff; 224 225 /* The length of the string table. */ 226 bfd_size_type l_stlen; 227 228 /* The offset from the start of the .loader section to the first 229 entry in the string table. */ 230 bfd_size_type l_stoff; 231 232 /* The offset to start of the symbol table, only in XCOFF64 */ 233 bfd_vma l_symoff; 234 235 /* The offset to the start of the relocation table, only in XCOFF64 */ 236 bfd_vma l_rldoff; 237 }; 238 239 /* The ldsym structure. This is used to represent a symbol in the 240 .loader section. */ 241 242 struct internal_ldsym 243 { 244 union 245 { 246 /* The symbol name if <= SYMNMLEN characters. */ 247 char _l_name[SYMNMLEN]; 248 struct 249 { 250 /* Zero if the symbol name is more than SYMNMLEN characters. */ 251 long _l_zeroes; 252 253 /* The offset in the string table if the symbol name is more 254 than SYMNMLEN characters. */ 255 long _l_offset; 256 } 257 _l_l; 258 } 259 _l; 260 261 /* The symbol value. */ 262 bfd_vma l_value; 263 264 /* The symbol section number. */ 265 short l_scnum; 266 267 /* The symbol type and flags. */ 268 char l_smtype; 269 270 /* The symbol storage class. */ 271 char l_smclas; 272 273 /* The import file ID. */ 274 bfd_size_type l_ifile; 275 276 /* Offset to the parameter type check string. */ 277 bfd_size_type l_parm; 278 }; 279 280 /* These flags are for the l_smtype field (the lower three bits are an 281 XTY_* value). */ 282 283 /* Imported symbol. */ 284 #define L_IMPORT (0x40) 285 /* Entry point. */ 286 #define L_ENTRY (0x20) 287 /* Exported symbol. */ 288 #define L_EXPORT (0x10) 289 /* Weak symbol. */ 290 #define L_WEAK (0x08) 291 292 /* The ldrel structure. This is used to represent a reloc in the 293 .loader section. */ 294 295 struct internal_ldrel 296 { 297 /* The reloc address. */ 298 bfd_vma l_vaddr; 299 300 /* The symbol table index in the .loader section symbol table. */ 301 bfd_size_type l_symndx; 302 303 /* The relocation type and size. */ 304 short l_rtype; 305 306 /* The section number this relocation applies to. */ 307 short l_rsecnm; 308 }; 309 310 /* An entry in the XCOFF linker hash table. */ 311 struct xcoff_link_hash_entry 312 { 313 struct bfd_link_hash_entry root; 314 315 /* Symbol index in output file. Set to -1 initially. Set to -2 if 316 there is a reloc against this symbol. */ 317 long indx; 318 319 /* If we have created a TOC entry for this symbol, this is the .tc 320 section which holds it. */ 321 asection *toc_section; 322 323 union 324 { 325 /* If we have created a TOC entry (the XCOFF_SET_TOC flag is 326 set), this is the offset in toc_section. */ 327 bfd_vma toc_offset; 328 329 /* If the TOC entry comes from an input file, this is set to the 330 symbol index of the C_HIDEXT XMC_TC or XMC_TD symbol. */ 331 long toc_indx; 332 } 333 u; 334 335 /* If this symbol is a function entry point which is called, this 336 field holds a pointer to the function descriptor. If this symbol 337 is a function descriptor, this field holds a pointer to the 338 function entry point. */ 339 struct xcoff_link_hash_entry *descriptor; 340 341 /* The .loader symbol table entry, if there is one. */ 342 struct internal_ldsym *ldsym; 343 344 /* If XCOFF_BUILT_LDSYM is set, this is the .loader symbol table 345 index. If XCOFF_BUILD_LDSYM is clear, and XCOFF_IMPORT is set, 346 this is the l_ifile value. */ 347 long ldindx; 348 349 /* Some linker flags. */ 350 unsigned long flags; 351 352 /* Symbol visibility, using the same define than n_type. */ 353 unsigned short visibility; 354 355 /* The storage mapping class. */ 356 unsigned char smclas; 357 }; 358 359 /* Flags for xcoff_link_hash_entry. */ 360 361 /* Symbol is referenced by a regular object. */ 362 #define XCOFF_REF_REGULAR 0x00000001 363 /* Symbol is defined by a regular object. */ 364 #define XCOFF_DEF_REGULAR 0x00000002 365 /* Symbol is defined by a dynamic object. */ 366 #define XCOFF_DEF_DYNAMIC 0x00000004 367 /* Symbol is used in a reloc being copied into the .loader section. */ 368 #define XCOFF_LDREL 0x00000008 369 /* Symbol is the entry point. */ 370 #define XCOFF_ENTRY 0x00000010 371 /* Symbol is for a function and is the target of a relocation. 372 The relocation may or may not be a branch-type relocation. */ 373 #define XCOFF_CALLED 0x00000020 374 /* Symbol needs the TOC entry filled in. */ 375 #define XCOFF_SET_TOC 0x00000040 376 /* Symbol is implicitly or explicitly imported. */ 377 #define XCOFF_IMPORT 0x00000080 378 /* Symbol is explicitly exported. */ 379 #define XCOFF_EXPORT 0x00000100 380 /* Symbol has been processed by xcoff_build_ldsyms. */ 381 #define XCOFF_BUILT_LDSYM 0x00000200 382 /* Symbol is mentioned by a section which was not garbage collected. */ 383 #define XCOFF_MARK 0x00000400 384 /* Symbol size is recorded in size_list list from hash table. */ 385 #define XCOFF_HAS_SIZE 0x00000800 386 /* Symbol is a function descriptor. */ 387 #define XCOFF_DESCRIPTOR 0x00001000 388 /* Multiple definitions have been for the symbol. */ 389 #define XCOFF_MULTIPLY_DEFINED 0x00002000 390 /* Symbol is the __rtinit symbol. */ 391 #define XCOFF_RTINIT 0x00004000 392 /* Symbol is an imported 32 bit syscall. */ 393 #define XCOFF_SYSCALL32 0x00008000 394 /* Symbol is an imported 64 bit syscall. */ 395 #define XCOFF_SYSCALL64 0x00010000 396 /* Symbol was not explicitly defined by the time it was marked. */ 397 #define XCOFF_WAS_UNDEFINED 0x00020000 398 /* We have assigned an output XCOFF entry to this symbol. */ 399 #define XCOFF_ALLOCATED 0x00040000 400 401 /* The XCOFF linker hash table. */ 402 403 #define XCOFF_NUMBER_OF_SPECIAL_SECTIONS 6 404 #define XCOFF_SPECIAL_SECTION_TEXT 0 405 #define XCOFF_SPECIAL_SECTION_ETEXT 1 406 #define XCOFF_SPECIAL_SECTION_DATA 2 407 #define XCOFF_SPECIAL_SECTION_EDATA 3 408 #define XCOFF_SPECIAL_SECTION_END 4 409 #define XCOFF_SPECIAL_SECTION_END2 5 410 411 /* These flags indicate which of -bexpall and -bexpfull are in effect. */ 412 #define XCOFF_EXPALL 1 413 #define XCOFF_EXPFULL 2 414 415 /* This structure is used to pass information through 416 xcoff_link_hash_traverse. */ 417 418 struct xcoff_loader_info 419 { 420 /* Set if a problem occurred. */ 421 bool failed; 422 423 /* Output BFD. */ 424 bfd *output_bfd; 425 426 /* Link information structure. */ 427 struct bfd_link_info *info; 428 429 /* A mask of XCOFF_EXPALL and XCOFF_EXPFULL flags. */ 430 unsigned int auto_export_flags; 431 432 /* Number of ldsym structures. */ 433 size_t ldsym_count; 434 435 /* A count of non TOC relative relocs which will need to be 436 allocated in the .loader section. */ 437 size_t ldrel_count; 438 439 /* Size of string table. */ 440 size_t string_size; 441 442 /* String table. */ 443 char *strings; 444 445 /* Allocated size of string table. */ 446 size_t string_alc; 447 448 /* The libpath being used. */ 449 const char *libpath; 450 }; 451 452 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value 453 from smaller values. Start with zero, widen, *then* decrement. */ 454 #define MINUS_ONE (((bfd_vma) 0) - 1) 455 456 /* __rtinit, from /usr/include/rtinit.h. */ 457 struct __rtinit 458 { 459 /* Pointer to runtime linker. 460 XXX: Is the parameter really void? */ 461 int (*rtl) (void); 462 463 /* Offset to array of init functions, 0 if none. */ 464 int init_offset; 465 466 /* Offset to array of fini functions, 0 if none. */ 467 int fini_offset; 468 469 /* Size of __RTINIT_DESCRIPTOR. This value should be used instead of 470 sizeof(__RTINIT_DESCRIPTOR). */ 471 int __rtinit_descriptor_size; 472 }; 473 474 #define RTINIT_DESCRIPTOR_SIZE (12) 475 476 struct __rtinit_descriptor 477 { 478 /* Init/fini function. */ 479 int f; 480 481 /* Offset, relative to the start of the __rtinit symbol, to name of the 482 function. */ 483 484 int name_offset; 485 486 /* Flags */ 487 unsigned char flags; 488 }; 489 490 /* Archive */ 491 492 #define XCOFFARMAG "<aiaff>\012" 493 #define XCOFFARMAGBIG "<bigaf>\012" 494 #define SXCOFFARMAG 8 495 496 /* The size of the ascii archive elements */ 497 #define XCOFFARMAG_ELEMENT_SIZE 12 498 #define XCOFFARMAGBIG_ELEMENT_SIZE 20 499 500 /* This terminates an XCOFF archive member name. */ 501 502 #define XCOFFARFMAG "`\012" 503 #define SXCOFFARFMAG 2 504 505 /* XCOFF archives start with this (printable) structure. */ 506 507 struct xcoff_ar_file_hdr 508 { 509 /* Magic string. */ 510 char magic[SXCOFFARMAG]; 511 512 /* Offset of the member table (decimal ASCII string). */ 513 char memoff[XCOFFARMAG_ELEMENT_SIZE]; 514 515 /* Offset of the global symbol table (decimal ASCII string). */ 516 char symoff[XCOFFARMAG_ELEMENT_SIZE]; 517 518 /* Offset of the first member in the archive (decimal ASCII string). */ 519 char firstmemoff[XCOFFARMAG_ELEMENT_SIZE]; 520 521 /* Offset of the last member in the archive (decimal ASCII string). */ 522 char lastmemoff[XCOFFARMAG_ELEMENT_SIZE]; 523 524 /* Offset of the first member on the free list (decimal ASCII 525 string). */ 526 char freeoff[XCOFFARMAG_ELEMENT_SIZE]; 527 }; 528 529 #define SIZEOF_AR_FILE_HDR (sizeof (struct xcoff_ar_file_hdr)) 530 531 /* This is the equivalent data structure for the big archive format. */ 532 533 struct xcoff_ar_file_hdr_big 534 { 535 /* Magic string. */ 536 char magic[SXCOFFARMAG]; 537 538 /* Offset of the member table (decimal ASCII string). */ 539 char memoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 540 541 /* Offset of the global symbol table for 32-bit objects (decimal ASCII 542 string). */ 543 char symoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 544 545 /* Offset of the global symbol table for 64-bit objects (decimal ASCII 546 string). */ 547 char symoff64[XCOFFARMAGBIG_ELEMENT_SIZE]; 548 549 /* Offset of the first member in the archive (decimal ASCII string). */ 550 char firstmemoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 551 552 /* Offset of the last member in the archive (decimal ASCII string). */ 553 char lastmemoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 554 555 /* Offset of the first member on the free list (decimal ASCII 556 string). */ 557 char freeoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 558 }; 559 560 #define SIZEOF_AR_FILE_HDR_BIG (sizeof (struct xcoff_ar_file_hdr_big)) 561 562 /* Each XCOFF archive member starts with this (printable) structure. */ 563 564 struct xcoff_ar_hdr 565 { 566 /* File size not including the header (decimal ASCII string). */ 567 char size[XCOFFARMAG_ELEMENT_SIZE]; 568 569 /* File offset of next archive member (decimal ASCII string). */ 570 char nextoff[XCOFFARMAG_ELEMENT_SIZE]; 571 572 /* File offset of previous archive member (decimal ASCII string). */ 573 char prevoff[XCOFFARMAG_ELEMENT_SIZE]; 574 575 /* File mtime (decimal ASCII string). */ 576 char date[12]; 577 578 /* File UID (decimal ASCII string). */ 579 char uid[12]; 580 581 /* File GID (decimal ASCII string). */ 582 char gid[12]; 583 584 /* File mode (octal ASCII string). */ 585 char mode[12]; 586 587 /* Length of file name (decimal ASCII string). */ 588 char namlen[4]; 589 590 /* This structure is followed by the file name. The length of the 591 name is given in the namlen field. If the length of the name is 592 odd, the name is followed by a null byte. The name and optional 593 null byte are followed by XCOFFARFMAG, which is not included in 594 namlen. The contents of the archive member follow; the number of 595 bytes is given in the size field. */ 596 }; 597 598 #define SIZEOF_AR_HDR (sizeof (struct xcoff_ar_hdr)) 599 600 /* The equivalent for the big archive format. */ 601 602 struct xcoff_ar_hdr_big 603 { 604 /* File size not including the header (decimal ASCII string). */ 605 char size[XCOFFARMAGBIG_ELEMENT_SIZE]; 606 607 /* File offset of next archive member (decimal ASCII string). */ 608 char nextoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 609 610 /* File offset of previous archive member (decimal ASCII string). */ 611 char prevoff[XCOFFARMAGBIG_ELEMENT_SIZE]; 612 613 /* File mtime (decimal ASCII string). */ 614 char date[12]; 615 616 /* File UID (decimal ASCII string). */ 617 char uid[12]; 618 619 /* File GID (decimal ASCII string). */ 620 char gid[12]; 621 622 /* File mode (octal ASCII string). */ 623 char mode[12]; 624 625 /* Length of file name (decimal ASCII string). */ 626 char namlen[4]; 627 628 /* This structure is followed by the file name. The length of the 629 name is given in the namlen field. If the length of the name is 630 odd, the name is followed by a null byte. The name and optional 631 null byte are followed by XCOFFARFMAG, which is not included in 632 namlen. The contents of the archive member follow; the number of 633 bytes is given in the size field. */ 634 }; 635 636 #define SIZEOF_AR_HDR_BIG (sizeof (struct xcoff_ar_hdr_big)) 637 638 /* Track archive file offsets used by elements and the header. */ 639 struct ar_ranges 640 { 641 ufile_ptr start, end; 642 struct ar_ranges *next; 643 }; 644 645 /* An archive bfd has tdata pointing to a struct artdata. The xcoff 646 backend has artdata.tdata pointing to the following. */ 647 struct xcoff_artdata 648 { 649 union 650 { 651 struct xcoff_ar_file_hdr hdr; 652 struct xcoff_ar_file_hdr_big bhdr; 653 } u; 654 struct ar_ranges ranges; 655 /* Anything less than this size can't hold an archive element. */ 656 unsigned int ar_hdr_size; 657 }; 658 659 #define x_artdata(abfd) ((struct xcoff_artdata *) bfd_ardata (abfd)->tdata) 660 661 /* We often have to distinguish between the old and big file format. 662 u.hdr.magic and u.bhdr.magic have the same size and position. */ 663 #ifndef SMALL_ARCHIVE 664 /* Creates big archives by default */ 665 #define xcoff_big_format_p(abfd) \ 666 (bfd_ardata (abfd) == NULL \ 667 || x_artdata (abfd) == NULL \ 668 || x_artdata (abfd)->u.hdr.magic[1] != 'a') 669 #else 670 /* Creates small archives by default. */ 671 #define xcoff_big_format_p(abfd) \ 672 (bfd_ardata (abfd) != NULL \ 673 && x_artdata (abfd) != NULL \ 674 && x_artdata (abfd)->u.hdr.magic[1] == 'b') 675 #endif 676 677 /* We store a copy of the xcoff_ar_hdr in the arelt_data field of an 678 archive element. Similar for the big archive. */ 679 #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data)) 680 #define arch_xhdr(bfd) \ 681 ((struct xcoff_ar_hdr *) arch_eltdata (bfd)->arch_header) 682 #define arch_xhdr_big(bfd) \ 683 ((struct xcoff_ar_hdr_big *) arch_eltdata (bfd)->arch_header) 684 685 /* True if symbols of class CLASS are external. */ 686 #define EXTERN_SYM_P(CLASS) \ 687 ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT) 688 689 #endif /* _INTERNAL_XCOFF_H */ 690