bfd/libcoff.h

   1 /* BFD COFF object file private structure.
   2    Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999
   3    Free Software Foundation, Inc.
   4    Written by Cygnus Support.
   5
   6 ** NOTE: libcoff.h is a GENERATED file.  Don't change it; instead,
   7 ** change libcoff-in.h or coffcode.h.
   8
   9 This file is part of BFD, the Binary File Descriptor library.
  10
  11 This program is free software; you can redistribute it and/or modify
  12 it under the terms of the GNU General Public License as published by
  13 the Free Software Foundation; either version 2 of the License, or
  14 (at your option) any later version.
  15
  16 This program is distributed in the hope that it will be useful,
  17 but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 GNU General Public License for more details.
  20
  21 You should have received a copy of the GNU General Public License
  22 along with this program; if not, write to the Free Software
  23 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  24
  25 #include "bfdlink.h"
  26
  27 /* Object file tdata; access macros */
  28
  29 #define coff_data(bfd)          ((bfd)->tdata.coff_obj_data)
  30 #define exec_hdr(bfd)           (coff_data(bfd)->hdr)
  31 #define obj_pe(bfd)             (coff_data(bfd)->pe)
  32 #define obj_symbols(bfd)        (coff_data(bfd)->symbols)
  33 #define obj_sym_filepos(bfd)    (coff_data(bfd)->sym_filepos)
  34
  35 #define obj_relocbase(bfd)      (coff_data(bfd)->relocbase)
  36 #define obj_raw_syments(bfd)    (coff_data(bfd)->raw_syments)
  37 #define obj_raw_syment_count(bfd)       (coff_data(bfd)->raw_syment_count)
  38 #define obj_convert(bfd)        (coff_data(bfd)->conversion_table)
  39 #define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
  40
  41 #define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
  42 #define obj_coff_keep_syms(bfd) (coff_data (bfd)->keep_syms)
  43 #define obj_coff_strings(bfd)   (coff_data (bfd)->strings)
  44 #define obj_coff_keep_strings(bfd) (coff_data (bfd)->keep_strings)
  45 #define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
  46 #define obj_coff_strings_written(bfd) (coff_data (bfd)->strings_written)
  47
  48 #define obj_coff_local_toc_table(bfd) (coff_data(bfd)->local_toc_sym_map)
  49
  50 /* `Tdata' information kept for COFF files.  */
  51
  52 typedef struct coff_tdata
  53 {
  54   struct   coff_symbol_struct *symbols; /* symtab for input bfd */
  55   unsigned int *conversion_table;
  56   int conv_table_size;
  57   file_ptr sym_filepos;
  58
  59   struct coff_ptr_struct *raw_syments;
  60   unsigned long raw_syment_count;
  61
  62   /* These are only valid once writing has begun */
  63   long int relocbase;
  64
  65   /* These members communicate important constants about the symbol table
  66      to GDB's symbol-reading code.  These `constants' unfortunately vary
  67      from coff implementation to implementation...  */
  68   unsigned local_n_btmask;
  69   unsigned local_n_btshft;
  70   unsigned local_n_tmask;
  71   unsigned local_n_tshift;
  72   unsigned local_symesz;
  73   unsigned local_auxesz;
  74   unsigned local_linesz;
  75
  76   /* The unswapped external symbols.  May be NULL.  Read by
  77      _bfd_coff_get_external_symbols.  */
  78   PTR external_syms;
  79   /* If this is true, the external_syms may not be freed.  */
  80   boolean keep_syms;
  81
  82   /* The string table.  May be NULL.  Read by
  83      _bfd_coff_read_string_table.  */
  84   char *strings;
  85   /* If this is true, the strings may not be freed.  */
  86   boolean keep_strings;
  87   /* If this is true, the strings have been written out already.  */
  88   boolean strings_written;
  89
  90   /* is this a PE format coff file */
  91   int pe;
  92   /* Used by the COFF backend linker.  */
  93   struct coff_link_hash_entry **sym_hashes;
  94
  95   /* used by the pe linker for PowerPC */
  96   int *local_toc_sym_map;
  97
  98   struct bfd_link_info *link_info;
  99
 100   /* Used by coff_find_nearest_line.  */
 101   PTR line_info;
 102
 103   /* The timestamp from the COFF file header.  */
 104   long timestamp;
 105
 106   /* Copy of some of the f_flags bits in the COFF filehdr structure,
 107      used by ARM code.  */
 108   flagword flags;
 109
 110 } coff_data_type;
 111
 112 /* Tdata for pe image files. */
 113 typedef struct pe_tdata
 114 {
 115   coff_data_type coff;
 116   struct internal_extra_pe_aouthdr pe_opthdr;
 117   int dll;
 118   int has_reloc_section;
 119   boolean (*in_reloc_p) PARAMS((bfd *, reloc_howto_type *));
 120   flagword real_flags;
 121 } pe_data_type;
 122
 123 #define pe_data(bfd)            ((bfd)->tdata.pe_obj_data)
 124
 125 /* Tdata for XCOFF files.  */
 126
 127 struct xcoff_tdata
 128 {
 129   /* Basic COFF information.  */
 130   coff_data_type coff;
 131
 132   /* True if this is an XCOFF64 file. */
 133   boolean xcoff64;
 134
 135   /* True if a large a.out header should be generated.  */
 136   boolean full_aouthdr;
 137
 138   /* TOC value.  */
 139   bfd_vma toc;
 140
 141   /* Index of section holding TOC.  */
 142   int sntoc;
 143
 144   /* Index of section holding entry point.  */
 145   int snentry;
 146
 147   /* .text alignment from optional header.  */
 148   int text_align_power;
 149
 150   /* .data alignment from optional header.  */
 151   int data_align_power;
 152
 153   /* modtype from optional header.  */
 154   short modtype;
 155
 156   /* cputype from optional header.  */
 157   short cputype;
 158
 159   /* maxdata from optional header.  */
 160   bfd_size_type maxdata;
 161
 162   /* maxstack from optional header.  */
 163   bfd_size_type maxstack;
 164
 165   /* Used by the XCOFF backend linker.  */
 166   asection **csects;
 167   unsigned long *debug_indices;
 168   unsigned int import_file_id;
 169 };
 170
 171 #define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data)
 172
 173 /* We take the address of the first element of a asymbol to ensure that the
 174  * macro is only ever applied to an asymbol.  */
 175 #define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
 176
 177 /* The used_by_bfd field of a section may be set to a pointer to this
 178    structure.  */
 179
 180 struct coff_section_tdata
 181 {
 182   /* The relocs, swapped into COFF internal form.  This may be NULL.  */
 183   struct internal_reloc *relocs;
 184   /* If this is true, the relocs entry may not be freed.  */
 185   boolean keep_relocs;
 186   /* The section contents.  This may be NULL.  */
 187   bfd_byte *contents;
 188   /* If this is true, the contents entry may not be freed.  */
 189   boolean keep_contents;
 190   /* Information cached by coff_find_nearest_line.  */
 191   bfd_vma offset;
 192   unsigned int i;
 193   const char *function;
 194   int line_base;
 195   /* A pointer used for .stab linking optimizations.  */
 196   PTR stab_info;
 197   /* Available for individual backends.  */
 198   PTR tdata;
 199 };
 200
 201 /* An accessor macro for the coff_section_tdata structure.  */
 202 #define coff_section_data(abfd, sec) \
 203   ((struct coff_section_tdata *) (sec)->used_by_bfd)
 204
 205 /* Tdata for sections in XCOFF files.  This is used by the linker.  */
 206
 207 struct xcoff_section_tdata
 208 {
 209   /* Used for XCOFF csects created by the linker; points to the real
 210      XCOFF section which contains this csect.  */
 211   asection *enclosing;
 212   /* The lineno_count field for the enclosing section, because we are
 213      going to clobber it there.  */
 214   unsigned int lineno_count;
 215   /* The first and one past the last symbol indices for symbols used
 216      by this csect.  */
 217   unsigned long first_symndx;
 218   unsigned long last_symndx;
 219 };
 220
 221 /* An accessor macro the xcoff_section_tdata structure.  */
 222 #define xcoff_section_data(abfd, sec) \
 223   ((struct xcoff_section_tdata *) coff_section_data ((abfd), (sec))->tdata)
 224
 225 /* Tdata for sections in PE files.  */
 226
 227 struct pei_section_tdata
 228 {
 229   /* The virtual size of the section.  */
 230   bfd_size_type virt_size;
 231   /* The PE section flags.  */
 232   long pe_flags;
 233 };
 234
 235 /* An accessor macro for the pei_section_tdata structure.  */
 236 #define pei_section_data(abfd, sec) \
 237   ((struct pei_section_tdata *) coff_section_data ((abfd), (sec))->tdata)
 238
 239 /* COFF linker hash table entries.  */
 240
 241 struct coff_link_hash_entry
 242 {
 243   struct bfd_link_hash_entry root;
 244
 245   /* Symbol index in output file.  Set to -1 initially.  Set to -2 if
 246      there is a reloc against this symbol.  */
 247   long indx;
 248
 249   /* Symbol type.  */
 250   unsigned short type;
 251
 252   /* Symbol class.  */
 253   unsigned char class;
 254
 255   /* Number of auxiliary entries.  */
 256   char numaux;
 257
 258   /* BFD to take auxiliary entries from.  */
 259   bfd *auxbfd;
 260
 261   /* Pointer to array of auxiliary entries, if any.  */
 262   union internal_auxent *aux;
 263
 264   /* Flag word; legal values follow.  */
 265   unsigned short coff_link_hash_flags;
 266   /* Symbol is a PE section symbol.  */
 267 #define COFF_LINK_HASH_PE_SECTION_SYMBOL (01)
 268 };
 269
 270 /* COFF linker hash table.  */
 271
 272 struct coff_link_hash_table
 273 {
 274   struct bfd_link_hash_table root;
 275   /* A pointer to information used to link stabs in sections.  */
 276   PTR stab_info;
 277 };
 278
 279 /* Look up an entry in a COFF linker hash table.  */
 280
 281 #define coff_link_hash_lookup(table, string, create, copy, follow)      \
 282   ((struct coff_link_hash_entry *)                                      \
 283    bfd_link_hash_lookup (&(table)->root, (string), (create),            \
 284                          (copy), (follow)))
 285
 286 /* Traverse a COFF linker hash table.  */
 287
 288 #define coff_link_hash_traverse(table, func, info)                      \
 289   (bfd_link_hash_traverse                                               \
 290    (&(table)->root,                                                     \
 291     (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func),  \
 292     (info)))
 293
 294 /* Get the COFF linker hash table from a link_info structure.  */
 295
 296 #define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
 297
 298 /* Functions in coffgen.c.  */
 299 extern const bfd_target *coff_object_p PARAMS ((bfd *));
 300 extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int));
 301 extern long coff_get_symtab_upper_bound PARAMS ((bfd *));
 302 extern long coff_get_symtab PARAMS ((bfd *, asymbol **));
 303 extern int coff_count_linenumbers PARAMS ((bfd *));
 304 extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *));
 305 extern boolean coff_renumber_symbols PARAMS ((bfd *, int *));
 306 extern void coff_mangle_symbols PARAMS ((bfd *));
 307 extern boolean coff_write_symbols PARAMS ((bfd *));
 308 extern boolean coff_write_linenumbers PARAMS ((bfd *));
 309 extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *));
 310 extern asymbol *coff_section_symbol PARAMS ((bfd *, char *));
 311 extern boolean _bfd_coff_get_external_symbols PARAMS ((bfd *));
 312 extern const char *_bfd_coff_read_string_table PARAMS ((bfd *));
 313 extern boolean _bfd_coff_free_symbols PARAMS ((bfd *));
 314 extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *));
 315 extern long coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
 316 extern asymbol *coff_make_empty_symbol PARAMS ((bfd *));
 317 extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *,
 318                                        bfd_print_symbol_type how));
 319 extern void coff_get_symbol_info PARAMS ((bfd *, asymbol *,
 320                                           symbol_info *ret));
 321 extern boolean _bfd_coff_is_local_label_name PARAMS ((bfd *, const char *));
 322 extern asymbol *coff_bfd_make_debug_symbol PARAMS ((bfd *, PTR,
 323                                                     unsigned long));
 324 extern boolean coff_find_nearest_line PARAMS ((bfd *,
 325                                                asection *,
 326                                                asymbol **,
 327                                                bfd_vma offset,
 328                                                CONST char **filename_ptr,
 329                                                CONST char **functionname_ptr,
 330                                                unsigned int *line_ptr));
 331 extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc));
 332 extern boolean bfd_coff_reloc16_relax_section
 333   PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
 334 extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
 335   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
 336            bfd_byte *, boolean relocateable, asymbol **));
 337 extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *,
 338                                                    struct bfd_link_info *,
 339                                                    asection *));
 340 extern void bfd_perform_slip PARAMS ((bfd *abfd, unsigned int slip,
 341                                       asection *input_section,
 342                                       bfd_vma val));
 343
 344 /* Functions and types in cofflink.c.  */
 345
 346 #define STRING_SIZE_SIZE (4)
 347
 348 /* We use a hash table to merge identical enum, struct, and union
 349    definitions in the linker.  */
 350
 351 /* Information we keep for a single element (an enum value, a
 352    structure or union field) in the debug merge hash table.  */
 353
 354 struct coff_debug_merge_element
 355 {
 356   /* Next element.  */
 357   struct coff_debug_merge_element *next;
 358
 359   /* Name.  */
 360   const char *name;
 361
 362   /* Type.  */
 363   unsigned int type;
 364
 365   /* Symbol index for complex type.  */
 366   long tagndx;
 367 };
 368
 369 /* A linked list of debug merge entries for a given name.  */
 370
 371 struct coff_debug_merge_type
 372 {
 373   /* Next type with the same name.  */
 374   struct coff_debug_merge_type *next;
 375
 376   /* Class of type.  */
 377   int class;
 378
 379   /* Symbol index where this type is defined.  */
 380   long indx;
 381
 382   /* List of elements.  */
 383   struct coff_debug_merge_element *elements;
 384 };
 385
 386 /* Information we store in the debug merge hash table.  */
 387
 388 struct coff_debug_merge_hash_entry
 389 {
 390   struct bfd_hash_entry root;
 391
 392   /* A list of types with this name.  */
 393   struct coff_debug_merge_type *types;
 394 };
 395
 396 /* The debug merge hash table.  */
 397
 398 struct coff_debug_merge_hash_table
 399 {
 400   struct bfd_hash_table root;
 401 };
 402
 403 /* Initialize a COFF debug merge hash table.  */
 404
 405 #define coff_debug_merge_hash_table_init(table) \
 406   (bfd_hash_table_init (&(table)->root, _bfd_coff_debug_merge_hash_newfunc))
 407
 408 /* Free a COFF debug merge hash table.  */
 409
 410 #define coff_debug_merge_hash_table_free(table) \
 411   (bfd_hash_table_free (&(table)->root))
 412
 413 /* Look up an entry in a COFF debug merge hash table.  */
 414
 415 #define coff_debug_merge_hash_lookup(table, string, create, copy) \
 416   ((struct coff_debug_merge_hash_entry *) \
 417    bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
 418
 419 /* Information we keep for each section in the output file when doing
 420    a relocateable link.  */
 421
 422 struct coff_link_section_info
 423 {
 424   /* The relocs to be output.  */
 425   struct internal_reloc *relocs;
 426   /* For each reloc against a global symbol whose index was not known
 427      when the reloc was handled, the global hash table entry.  */
 428   struct coff_link_hash_entry **rel_hashes;
 429 };
 430
 431 /* Information that we pass around while doing the final link step.  */
 432
 433 struct coff_final_link_info
 434 {
 435   /* General link information.  */
 436   struct bfd_link_info *info;
 437   /* Output BFD.  */
 438   bfd *output_bfd;
 439   /* Used to indicate failure in traversal routine.  */
 440   boolean failed;
 441   /* If doing "task linking" set only during the time when we want the
 442      global symbol writer to convert the storage class of defined global
 443      symbols from global to static. */
 444   boolean global_to_static;
 445   /* Hash table for long symbol names.  */
 446   struct bfd_strtab_hash *strtab;
 447   /* When doing a relocateable link, an array of information kept for
 448      each output section, indexed by the target_index field.  */
 449   struct coff_link_section_info *section_info;
 450   /* Symbol index of last C_FILE symbol (-1 if none).  */
 451   long last_file_index;
 452   /* Contents of last C_FILE symbol.  */
 453   struct internal_syment last_file;
 454   /* Symbol index of first aux entry of last .bf symbol with an empty
 455      endndx field (-1 if none).  */
 456   long last_bf_index;
 457   /* Contents of last_bf_index aux entry.  */
 458   union internal_auxent last_bf;
 459   /* Hash table used to merge debug information.  */
 460   struct coff_debug_merge_hash_table debug_merge;
 461   /* Buffer large enough to hold swapped symbols of any input file.  */
 462   struct internal_syment *internal_syms;
 463   /* Buffer large enough to hold sections of symbols of any input file.  */
 464   asection **sec_ptrs;
 465   /* Buffer large enough to hold output indices of symbols of any
 466      input file.  */
 467   long *sym_indices;
 468   /* Buffer large enough to hold output symbols for any input file.  */
 469   bfd_byte *outsyms;
 470   /* Buffer large enough to hold external line numbers for any input
 471      section.  */
 472   bfd_byte *linenos;
 473   /* Buffer large enough to hold any input section.  */
 474   bfd_byte *contents;
 475   /* Buffer large enough to hold external relocs of any input section.  */
 476   bfd_byte *external_relocs;
 477   /* Buffer large enough to hold swapped relocs of any input section.  */
 478   struct internal_reloc *internal_relocs;
 479 };
 480
 481 /* Most COFF variants have no way to record the alignment of a
 482    section.  This struct is used to set a specific alignment based on
 483    the name of the section.  */
 484
 485 struct coff_section_alignment_entry
 486 {
 487   /* The section name.  */
 488   const char *name;
 489
 490   /* This is either (unsigned int) -1, indicating that the section
 491      name must match exactly, or it is the number of letters which
 492      must match at the start of the name.  */
 493   unsigned int comparison_length;
 494
 495   /* These macros may be used to fill in the first two fields in a
 496      structure initialization.  */
 497 #define COFF_SECTION_NAME_EXACT_MATCH(name) (name), ((unsigned int) -1)
 498 #define COFF_SECTION_NAME_PARTIAL_MATCH(name) (name), (sizeof (name) - 1)
 499
 500   /* Only use this entry if the default section alignment for this
 501      target is at least that much (as a power of two).  If this field
 502      is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
 503   unsigned int default_alignment_min;
 504
 505   /* Only use this entry if the default section alignment for this
 506      target is no greater than this (as a power of two).  If this
 507      field is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
 508   unsigned int default_alignment_max;
 509
 510 #define COFF_ALIGNMENT_FIELD_EMPTY ((unsigned int) -1)
 511
 512   /* The desired alignment for this section (as a power of two).  */
 513   unsigned int alignment_power;
 514 };
 515
 516 extern struct bfd_hash_entry *_bfd_coff_link_hash_newfunc
 517   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
 518 extern boolean _bfd_coff_link_hash_table_init
 519   PARAMS ((struct coff_link_hash_table *, bfd *,
 520            struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 521                                        struct bfd_hash_table *,
 522                                        const char *)));
 523 extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
 524   PARAMS ((bfd *));
 525 extern const char *_bfd_coff_internal_syment_name
 526   PARAMS ((bfd *, const struct internal_syment *, char *));
 527 extern boolean _bfd_coff_link_add_symbols
 528   PARAMS ((bfd *, struct bfd_link_info *));
 529 extern boolean _bfd_coff_final_link
 530   PARAMS ((bfd *, struct bfd_link_info *));
 531 extern struct internal_reloc *_bfd_coff_read_internal_relocs
 532   PARAMS ((bfd *, asection *, boolean, bfd_byte *, boolean,
 533            struct internal_reloc *));
 534 extern boolean _bfd_coff_generic_relocate_section
 535   PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
 536            struct internal_reloc *, struct internal_syment *, asection **));
 537
 538 extern struct bfd_hash_entry *_bfd_coff_debug_merge_hash_newfunc
 539   PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
 540 extern boolean _bfd_coff_write_global_sym
 541   PARAMS ((struct coff_link_hash_entry *, PTR));
 542 extern boolean _bfd_coff_write_task_globals
 543   PARAMS ((struct coff_link_hash_entry *, PTR));
 544 extern boolean _bfd_coff_link_input_bfd
 545   PARAMS ((struct coff_final_link_info *, bfd *));
 546 extern boolean _bfd_coff_reloc_link_order
 547   PARAMS ((bfd *, struct coff_final_link_info *, asection *,
 548            struct bfd_link_order *));
 549
 550
 551 #define coff_get_section_contents_in_window \
 552   _bfd_generic_get_section_contents_in_window
 553
 554 /* Functions in xcofflink.c.  */
 555
 556 extern long _bfd_xcoff_get_dynamic_symtab_upper_bound PARAMS ((bfd *));
 557 extern long _bfd_xcoff_canonicalize_dynamic_symtab
 558   PARAMS ((bfd *, asymbol **));
 559 extern long _bfd_xcoff_get_dynamic_reloc_upper_bound PARAMS ((bfd *));
 560 extern long _bfd_xcoff_canonicalize_dynamic_reloc
 561   PARAMS ((bfd *, arelent **, asymbol **));
 562 extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create
 563   PARAMS ((bfd *));
 564 extern boolean _bfd_xcoff_bfd_link_add_symbols
 565   PARAMS ((bfd *, struct bfd_link_info *));
 566 extern boolean _bfd_xcoff_bfd_final_link
 567   PARAMS ((bfd *, struct bfd_link_info *));
 568 extern boolean _bfd_ppc_xcoff_relocate_section
 569   PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
 570            struct internal_reloc *, struct internal_syment *, asection **));
 571
 572 /* Functions in coff-ppc.c.  FIXME: These are called be pe.em in the
 573    linker, and so should start with bfd and be declared in bfd.h.  */
 574
 575 extern boolean ppc_allocate_toc_section PARAMS ((struct bfd_link_info *));
 576 extern boolean ppc_process_before_allocation
 577   PARAMS ((bfd *, struct bfd_link_info *));
 578
 579 /* And more taken from the source .. */
 580
 581 typedef struct coff_ptr_struct
 582 {
 583
 584        /* Remembers the offset from the first symbol in the file for
 585           this symbol. Generated by coff_renumber_symbols. */
 586 unsigned int offset;
 587
 588        /* Should the value of this symbol be renumbered.  Used for
 589           XCOFF C_BSTAT symbols.  Set by coff_slurp_symbol_table.  */
 590 unsigned int fix_value : 1;
 591
 592        /* Should the tag field of this symbol be renumbered.
 593           Created by coff_pointerize_aux. */
 594 unsigned int fix_tag : 1;
 595
 596        /* Should the endidx field of this symbol be renumbered.
 597           Created by coff_pointerize_aux. */
 598 unsigned int fix_end : 1;
 599
 600        /* Should the x_csect.x_scnlen field be renumbered.
 601           Created by coff_pointerize_aux. */
 602 unsigned int fix_scnlen : 1;
 603
 604        /* Fix up an XCOFF C_BINCL/C_EINCL symbol.  The value is the
 605           index into the line number entries.  Set by
 606           coff_slurp_symbol_table.  */
 607 unsigned int fix_line : 1;
 608
 609        /* The container for the symbol structure as read and translated
 610            from the file. */
 611
 612 union {
 613    union internal_auxent auxent;
 614    struct internal_syment syment;
 615  } u;
 616 } combined_entry_type;
 617
 618
 619 /* Each canonical asymbol really looks like this: */
 620
 621 typedef struct coff_symbol_struct
 622 {
 623    /* The actual symbol which the rest of BFD works with */
 624 asymbol symbol;
 625
 626    /* A pointer to the hidden information for this symbol */
 627 combined_entry_type *native;
 628
 629    /* A pointer to the linenumber information for this symbol */
 630 struct lineno_cache_entry *lineno;
 631
 632    /* Have the line numbers been relocated yet ? */
 633 boolean done_lineno;
 634 } coff_symbol_type;
 635 /* COFF symbol classifications.  */
 636
 637 enum coff_symbol_classification
 638 {
 639   /* Global symbol.  */
 640   COFF_SYMBOL_GLOBAL,
 641   /* Common symbol.  */
 642   COFF_SYMBOL_COMMON,
 643   /* Undefined symbol.  */
 644   COFF_SYMBOL_UNDEFINED,
 645   /* Local symbol.  */
 646   COFF_SYMBOL_LOCAL,
 647   /* PE section symbol.  */
 648   COFF_SYMBOL_PE_SECTION
 649 };
 650
 651 typedef struct
 652 {
 653   void (*_bfd_coff_swap_aux_in) PARAMS ((
 654        bfd            *abfd,
 655        PTR             ext,
 656        int             type,
 657        int             class,
 658        int             indaux,
 659        int             numaux,
 660        PTR             in));
 661
 662   void (*_bfd_coff_swap_sym_in) PARAMS ((
 663        bfd            *abfd ,
 664        PTR             ext,
 665        PTR             in));
 666
 667   void (*_bfd_coff_swap_lineno_in) PARAMS ((
 668        bfd            *abfd,
 669        PTR            ext,
 670        PTR             in));
 671
 672  unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
 673        bfd     *abfd,
 674        PTR     in,
 675        int     type,
 676        int     class,
 677        int     indaux,
 678        int     numaux,
 679        PTR     ext));
 680
 681  unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
 682       bfd      *abfd,
 683       PTR      in,
 684       PTR      ext));
 685
 686  unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
 687        bfd     *abfd,
 688        PTR     in,
 689        PTR     ext));
 690
 691  unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
 692        bfd     *abfd,
 693        PTR     src,
 694        PTR     dst));
 695
 696  unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
 697        bfd     *abfd,
 698        PTR     in,
 699        PTR     out));
 700
 701  unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
 702        bfd     *abfd,
 703        PTR     in,
 704        PTR     out));
 705
 706  unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
 707        bfd     *abfd,
 708        PTR     in,
 709        PTR     out));
 710
 711  unsigned int _bfd_filhsz;
 712  unsigned int _bfd_aoutsz;
 713  unsigned int _bfd_scnhsz;
 714  unsigned int _bfd_symesz;
 715  unsigned int _bfd_auxesz;
 716  unsigned int _bfd_relsz;
 717  unsigned int _bfd_linesz;
 718  unsigned int _bfd_filnmlen;
 719  boolean _bfd_coff_long_filenames;
 720  boolean _bfd_coff_long_section_names;
 721  unsigned int _bfd_coff_default_section_alignment_power;
 722  boolean _bfd_coff_force_symnames_in_strings;
 723  unsigned int _bfd_coff_debug_string_prefix_length;
 724  void (*_bfd_coff_swap_filehdr_in) PARAMS ((
 725        bfd     *abfd,
 726        PTR     ext,
 727        PTR     in));
 728  void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
 729        bfd     *abfd,
 730        PTR     ext,
 731        PTR     in));
 732  void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
 733        bfd     *abfd,
 734        PTR     ext,
 735        PTR     in));
 736  void (*_bfd_coff_swap_reloc_in) PARAMS ((
 737        bfd     *abfd,
 738        PTR     ext,
 739        PTR     in));
 740  boolean (*_bfd_coff_bad_format_hook) PARAMS ((
 741        bfd     *abfd,
 742        PTR     internal_filehdr));
 743  boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
 744        bfd     *abfd,
 745        PTR     internal_filehdr));
 746  PTR (*_bfd_coff_mkobject_hook) PARAMS ((
 747        bfd     *abfd,
 748        PTR     internal_filehdr,
 749        PTR     internal_aouthdr));
 750  flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
 751        bfd     *abfd,
 752        PTR     internal_scnhdr,
 753        const char *name,
 754        asection *section));
 755  void (*_bfd_set_alignment_hook) PARAMS ((
 756        bfd     *abfd,
 757        asection *sec,
 758        PTR     internal_scnhdr));
 759  boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
 760        bfd     *abfd));
 761  boolean (*_bfd_coff_symname_in_debug) PARAMS ((
 762        bfd     *abfd,
 763        struct internal_syment *sym));
 764  boolean (*_bfd_coff_pointerize_aux_hook) PARAMS ((
 765        bfd *abfd,
 766        combined_entry_type *table_base,
 767        combined_entry_type *symbol,
 768        unsigned int indaux,
 769        combined_entry_type *aux));
 770  boolean (*_bfd_coff_print_aux) PARAMS ((
 771        bfd *abfd,
 772        FILE *file,
 773        combined_entry_type *table_base,
 774        combined_entry_type *symbol,
 775        combined_entry_type *aux,
 776        unsigned int indaux));
 777  void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
 778        bfd     *abfd,
 779        struct bfd_link_info *link_info,
 780        struct bfd_link_order *link_order,
 781        arelent *reloc,
 782        bfd_byte *data,
 783        unsigned int *src_ptr,
 784        unsigned int *dst_ptr));
 785  int (*_bfd_coff_reloc16_estimate) PARAMS ((
 786        bfd *abfd,
 787        asection *input_section,
 788        arelent *r,
 789        unsigned int shrink,
 790        struct bfd_link_info *link_info));
 791  enum coff_symbol_classification (*_bfd_coff_classify_symbol) PARAMS ((
 792        bfd *abfd,
 793        struct internal_syment *));
 794  boolean (*_bfd_coff_compute_section_file_positions) PARAMS ((
 795        bfd *abfd));
 796  boolean (*_bfd_coff_start_final_link) PARAMS ((
 797        bfd *output_bfd,
 798        struct bfd_link_info *info));
 799  boolean (*_bfd_coff_relocate_section) PARAMS ((
 800        bfd *output_bfd,
 801        struct bfd_link_info *info,
 802        bfd *input_bfd,
 803        asection *input_section,
 804        bfd_byte *contents,
 805        struct internal_reloc *relocs,
 806        struct internal_syment *syms,
 807        asection **sections));
 808  reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS ((
 809        bfd *abfd,
 810        asection *sec,
 811        struct internal_reloc *rel,
 812        struct coff_link_hash_entry *h,
 813        struct internal_syment *sym,
 814        bfd_vma *addendp));
 815  boolean (*_bfd_coff_adjust_symndx) PARAMS ((
 816        bfd *obfd,
 817        struct bfd_link_info *info,
 818        bfd *ibfd,
 819        asection *sec,
 820        struct internal_reloc *reloc,
 821        boolean *adjustedp));
 822  boolean (*_bfd_coff_link_add_one_symbol) PARAMS ((
 823        struct bfd_link_info *info,
 824        bfd *abfd,
 825        const char *name,
 826        flagword flags,
 827        asection *section,
 828        bfd_vma value,
 829        const char *string,
 830        boolean copy,
 831        boolean collect,
 832        struct bfd_link_hash_entry **hashp));
 833
 834  boolean (*_bfd_coff_link_output_has_begun) PARAMS ((
 835        bfd * abfd,
 836        struct coff_final_link_info * pfinfo));
 837  boolean (*_bfd_coff_final_link_postscript) PARAMS ((
 838        bfd * abfd,
 839        struct coff_final_link_info * pfinfo));
 840
 841 } bfd_coff_backend_data;
 842
 843 #define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
 844
 845 #define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
 846         ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
 847
 848 #define bfd_coff_swap_sym_in(a,e,i) \
 849         ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
 850
 851 #define bfd_coff_swap_lineno_in(a,e,i) \
 852         ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
 853
 854 #define bfd_coff_swap_reloc_out(abfd, i, o) \
 855         ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
 856
 857 #define bfd_coff_swap_lineno_out(abfd, i, o) \
 858         ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
 859
 860 #define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
 861         ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
 862
 863 #define bfd_coff_swap_sym_out(abfd, i,o) \
 864         ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
 865
 866 #define bfd_coff_swap_scnhdr_out(abfd, i,o) \
 867         ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
 868
 869 #define bfd_coff_swap_filehdr_out(abfd, i,o) \
 870         ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
 871
 872 #define bfd_coff_swap_aouthdr_out(abfd, i,o) \
 873         ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
 874
 875 #define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
 876 #define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
 877 #define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
 878 #define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
 879 #define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
 880 #define bfd_coff_relsz(abfd)  (coff_backend_info (abfd)->_bfd_relsz)
 881 #define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
 882 #define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
 883 #define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
 884 #define bfd_coff_long_section_names(abfd) \
 885         (coff_backend_info (abfd)->_bfd_coff_long_section_names)
 886 #define bfd_coff_default_section_alignment_power(abfd) \
 887         (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
 888 #define bfd_coff_swap_filehdr_in(abfd, i,o) \
 889         ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
 890
 891 #define bfd_coff_swap_aouthdr_in(abfd, i,o) \
 892         ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
 893
 894 #define bfd_coff_swap_scnhdr_in(abfd, i,o) \
 895         ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
 896
 897 #define bfd_coff_swap_reloc_in(abfd, i, o) \
 898         ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
 899
 900 #define bfd_coff_bad_format_hook(abfd, filehdr) \
 901         ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
 902
 903 #define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
 904         ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
 905 #define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
 906         ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
 907
 908 #define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section)\
 909         ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
 910          (abfd, scnhdr, name, section))
 911
 912 #define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
 913         ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
 914
 915 #define bfd_coff_slurp_symbol_table(abfd)\
 916         ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
 917
 918 #define bfd_coff_symname_in_debug(abfd, sym)\
 919         ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
 920
 921 #define bfd_coff_force_symnames_in_strings(abfd)\
 922        (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
 923
 924 #define bfd_coff_debug_string_prefix_length(abfd)\
 925        (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
 926
 927 #define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
 928         ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
 929          (abfd, file, base, symbol, aux, indaux))
 930
 931 #define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
 932         ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
 933          (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
 934
 935 #define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
 936         ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
 937          (abfd, section, reloc, shrink, link_info))
 938
 939 #define bfd_coff_classify_symbol(abfd, sym)\
 940         ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
 941          (abfd, sym))
 942
 943 #define bfd_coff_compute_section_file_positions(abfd)\
 944         ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
 945          (abfd))
 946
 947 #define bfd_coff_start_final_link(obfd, info)\
 948         ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
 949          (obfd, info))
 950 #define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
 951         ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
 952          (obfd, info, ibfd, o, con, rel, isyms, secs))
 953 #define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
 954         ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
 955          (abfd, sec, rel, h, sym, addendp))
 956 #define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
 957         ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
 958          (obfd, info, ibfd, sec, rel, adjustedp))
 959 #define bfd_coff_link_add_one_symbol(info,abfd,name,flags,section,value,string,cp,coll,hashp)\
 960         ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
 961          (info, abfd, name, flags, section, value, string, cp, coll, hashp))
 962
 963 #define bfd_coff_link_output_has_begun(a,p) \
 964         ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a,p))
 965 #define bfd_coff_final_link_postscript(a,p) \
 966         ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a,p))
 967