bfd/libcoff.h

   1 /* DO NOT EDIT!  -*- buffer-read-only: t -*-  This file is automatically
   2    generated from "libcoff-in.h" and "coffcode.h".
   3    Run "make headers" in your build bfd/ to regenerate.  */
   4
   5 /* BFD COFF object file private structure.
   6    Copyright (C) 1990-2019 Free Software Foundation, Inc.
   7    Written by Cygnus Support.
   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 3 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., 51 Franklin Street - Fifth Floor, Boston,
  24    MA 02110-1301, USA.  */
  25
  26 #ifndef _LIBCOFF_H
  27 #define _LIBCOFF_H 1
  28
  29 #include "bfdlink.h"
  30 #include "coff-bfd.h"
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 /* Object file tdata; access macros.  */
  37
  38 #define coff_data(bfd)                ((bfd)->tdata.coff_obj_data)
  39 #define obj_pe(bfd)                   (coff_data (bfd)->pe)
  40 #define obj_symbols(bfd)              (coff_data (bfd)->symbols)
  41 #define obj_sym_filepos(bfd)          (coff_data (bfd)->sym_filepos)
  42 #define obj_relocbase(bfd)            (coff_data (bfd)->relocbase)
  43 #define obj_raw_syments(bfd)          (coff_data (bfd)->raw_syments)
  44 #define obj_raw_syment_count(bfd)     (coff_data (bfd)->raw_syment_count)
  45 #define obj_convert(bfd)              (coff_data (bfd)->conversion_table)
  46 #define obj_conv_table_size(bfd)      (coff_data (bfd)->conv_table_size)
  47 #define obj_coff_external_syms(bfd)   (coff_data (bfd)->external_syms)
  48 #define obj_coff_keep_syms(bfd)       (coff_data (bfd)->keep_syms)
  49 #define obj_coff_strings(bfd)         (coff_data (bfd)->strings)
  50 #define obj_coff_strings_len(bfd)     (coff_data (bfd)->strings_len)
  51 #define obj_coff_keep_strings(bfd)    (coff_data (bfd)->keep_strings)
  52 #define obj_coff_sym_hashes(bfd)      (coff_data (bfd)->sym_hashes)
  53 #define obj_coff_strings_written(bfd) (coff_data (bfd)->strings_written)
  54 #define obj_coff_local_toc_table(bfd) (coff_data (bfd)->local_toc_sym_map)
  55
  56 /* `Tdata' information kept for COFF files.  */
  57
  58 typedef struct coff_tdata
  59 {
  60   struct coff_symbol_struct *symbols;   /* Symtab for input bfd.  */
  61   unsigned int *conversion_table;
  62   int conv_table_size;
  63   file_ptr sym_filepos;
  64
  65   struct coff_ptr_struct *raw_syments;
  66   unsigned long raw_syment_count;
  67
  68   /* These are only valid once writing has begun.  */
  69   unsigned long int relocbase;
  70
  71   /* These members communicate important constants about the symbol table
  72      to GDB's symbol-reading code.  These `constants' unfortunately vary
  73      from coff implementation to implementation...  */
  74   unsigned local_n_btmask;
  75   unsigned local_n_btshft;
  76   unsigned local_n_tmask;
  77   unsigned local_n_tshift;
  78   unsigned local_symesz;
  79   unsigned local_auxesz;
  80   unsigned local_linesz;
  81
  82   /* The unswapped external symbols.  May be NULL.  Read by
  83      _bfd_coff_get_external_symbols.  */
  84   void * external_syms;
  85   /* If this is TRUE, the external_syms may not be freed.  */
  86   bfd_boolean keep_syms;
  87
  88   /* The string table.  May be NULL.  Read by
  89      _bfd_coff_read_string_table.  */
  90   char *strings;
  91   /* The length of the strings table.  For error checking.  */
  92   bfd_size_type strings_len;
  93   /* If this is TRUE, the strings may not be freed.  */
  94   bfd_boolean keep_strings;
  95   /* If this is TRUE, the strings have been written out already.  */
  96   bfd_boolean strings_written;
  97
  98   /* Is this a PE format coff file?  */
  99   int pe;
 100   /* Used by the COFF backend linker.  */
 101   struct coff_link_hash_entry **sym_hashes;
 102
 103   /* Used by the pe linker for PowerPC.  */
 104   int *local_toc_sym_map;
 105
 106   struct bfd_link_info *link_info;
 107
 108   /* Used by coff_find_nearest_line.  */
 109   void * line_info;
 110
 111   /* A place to stash dwarf2 info for this bfd.  */
 112   void * dwarf2_find_line_info;
 113
 114   /* The timestamp from the COFF file header.  */
 115   long timestamp;
 116
 117   /* Copy of some of the f_flags bits in the COFF filehdr structure,
 118      used by ARM code.  */
 119   flagword flags;
 120
 121   /* coff-stgo32 EXE stub header after BFD tdata has been allocated.  Its data
 122      is kept in internal_filehdr.go32stub beforehand.  */
 123   char *go32stub;
 124 } coff_data_type;
 125
 126 /* Tdata for pe image files.  */
 127 typedef struct pe_tdata
 128 {
 129   coff_data_type coff;
 130   struct internal_extra_pe_aouthdr pe_opthdr;
 131   int dll;
 132   int has_reloc_section;
 133   int dont_strip_reloc;
 134   bfd_boolean insert_timestamp;
 135   bfd_boolean (*in_reloc_p) (bfd *, reloc_howto_type *);
 136   flagword real_flags;
 137
 138   /* Build-id info.  */
 139   struct
 140   {
 141     bfd_boolean (*after_write_object_contents) (bfd *);
 142     const char *style;
 143     asection *sec;
 144   } build_id;
 145 } pe_data_type;
 146
 147 #define pe_data(bfd)            ((bfd)->tdata.pe_obj_data)
 148
 149 /* Tdata for XCOFF files.  */
 150
 151 struct xcoff_tdata
 152 {
 153   /* Basic COFF information.  */
 154   coff_data_type coff;
 155
 156   /* TRUE if this is an XCOFF64 file. */
 157   bfd_boolean xcoff64;
 158
 159   /* TRUE if a large a.out header should be generated.  */
 160   bfd_boolean full_aouthdr;
 161
 162   /* TOC value.  */
 163   bfd_vma toc;
 164
 165   /* Index of section holding TOC.  */
 166   int sntoc;
 167
 168   /* Index of section holding entry point.  */
 169   int snentry;
 170
 171   /* .text alignment from optional header.  */
 172   int text_align_power;
 173
 174   /* .data alignment from optional header.  */
 175   int data_align_power;
 176
 177   /* modtype from optional header.  */
 178   short modtype;
 179
 180   /* cputype from optional header.  */
 181   short cputype;
 182
 183   /* maxdata from optional header.  */
 184   bfd_vma maxdata;
 185
 186   /* maxstack from optional header.  */
 187   bfd_vma maxstack;
 188
 189   /* Used by the XCOFF backend linker.  */
 190   asection **csects;
 191   long *debug_indices;
 192   unsigned int *lineno_counts;
 193   unsigned int import_file_id;
 194 };
 195
 196 #define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data)
 197
 198 /* We take the address of the first element of an asymbol to ensure that the
 199    macro is only ever applied to an asymbol.  */
 200 #define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
 201
 202 /* Tdata for sections in XCOFF files.  This is used by the linker.  */
 203
 204 struct xcoff_section_tdata
 205 {
 206   /* Used for XCOFF csects created by the linker; points to the real
 207      XCOFF section which contains this csect.  */
 208   asection *enclosing;
 209   /* The lineno_count field for the enclosing section, because we are
 210      going to clobber it there.  */
 211   unsigned int lineno_count;
 212   /* The first and last symbol indices for symbols used by this csect.  */
 213   unsigned long first_symndx;
 214   unsigned long last_symndx;
 215 };
 216
 217 /* An accessor macro the xcoff_section_tdata structure.  */
 218 #define xcoff_section_data(abfd, sec) \
 219   ((struct xcoff_section_tdata *) coff_section_data ((abfd), (sec))->tdata)
 220
 221 /* Tdata for sections in PE files.  */
 222
 223 struct pei_section_tdata
 224 {
 225   /* The virtual size of the section.  */
 226   bfd_size_type virt_size;
 227   /* The PE section flags.  */
 228   long pe_flags;
 229 };
 230
 231 /* An accessor macro for the pei_section_tdata structure.  */
 232 #define pei_section_data(abfd, sec) \
 233   ((struct pei_section_tdata *) coff_section_data ((abfd), (sec))->tdata)
 234
 235 /* COFF linker hash table entries.  */
 236
 237 struct coff_link_hash_entry
 238 {
 239   struct bfd_link_hash_entry root;
 240
 241   /* Symbol index in output file.  Set to -1 initially.  Set to -2 if
 242      there is a reloc against this symbol.  */
 243   long indx;
 244
 245   /* Symbol type.  */
 246   unsigned short type;
 247
 248   /* Symbol class.  */
 249   unsigned char symbol_class;
 250
 251   /* Number of auxiliary entries.  */
 252   char numaux;
 253
 254   /* BFD to take auxiliary entries from.  */
 255   bfd *auxbfd;
 256
 257   /* Pointer to array of auxiliary entries, if any.  */
 258   union internal_auxent *aux;
 259
 260   /* Flag word; legal values follow.  */
 261   unsigned short coff_link_hash_flags;
 262   /* Symbol is a PE section symbol.  */
 263 #define COFF_LINK_HASH_PE_SECTION_SYMBOL (01)
 264 };
 265
 266 /* COFF linker hash table.  */
 267
 268 struct coff_link_hash_table
 269 {
 270   struct bfd_link_hash_table root;
 271   /* A pointer to information used to link stabs in sections.  */
 272   struct stab_info stab_info;
 273 };
 274
 275 struct coff_reloc_cookie
 276 {
 277   struct internal_reloc *         rels;
 278   struct internal_reloc *         rel;
 279   struct internal_reloc *         relend;
 280   struct coff_symbol_struct *     symbols;      /* Symtab for input bfd.  */
 281   bfd *                           abfd;
 282   struct coff_link_hash_entry **  sym_hashes;
 283 };
 284
 285 /* Look up an entry in a COFF linker hash table.  */
 286
 287 #define coff_link_hash_lookup(table, string, create, copy, follow)      \
 288   ((struct coff_link_hash_entry *)                                      \
 289    bfd_link_hash_lookup (&(table)->root, (string), (create),            \
 290                          (copy), (follow)))
 291
 292 /* Traverse a COFF linker hash table.  */
 293
 294 #define coff_link_hash_traverse(table, func, info)                      \
 295   (bfd_link_hash_traverse                                               \
 296    (&(table)->root,                                                     \
 297     (bfd_boolean (*) (struct bfd_link_hash_entry *, void *)) (func), \
 298     (info)))
 299
 300 /* Get the COFF linker hash table from a link_info structure.  */
 301
 302 #define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
 303
 304 /* Functions in coffgen.c.  */
 305 extern const bfd_target *coff_object_p
 306   (bfd *);
 307 extern struct bfd_section *coff_section_from_bfd_index
 308   (bfd *, int);
 309 extern long coff_get_symtab_upper_bound
 310   (bfd *);
 311 extern long coff_canonicalize_symtab
 312   (bfd *, asymbol **);
 313 extern int coff_count_linenumbers
 314   (bfd *);
 315 extern bfd_boolean coff_renumber_symbols
 316   (bfd *, int *);
 317 extern void coff_mangle_symbols
 318   (bfd *);
 319 extern bfd_boolean coff_write_symbols
 320   (bfd *);
 321 extern bfd_boolean coff_write_alien_symbol
 322   (bfd *, asymbol *, struct internal_syment *, union internal_auxent *,
 323    bfd_vma *, bfd_size_type *, asection **, bfd_size_type *);
 324 extern bfd_boolean coff_write_linenumbers
 325   (bfd *);
 326 extern alent *coff_get_lineno
 327   (bfd *, asymbol *);
 328 extern asymbol *coff_section_symbol
 329   (bfd *, char *);
 330 extern bfd_boolean _bfd_coff_get_external_symbols
 331   (bfd *);
 332 extern const char *_bfd_coff_read_string_table
 333   (bfd *);
 334 extern bfd_boolean _bfd_coff_free_symbols
 335   (bfd *);
 336 extern struct coff_ptr_struct *coff_get_normalized_symtab
 337   (bfd *);
 338 extern long coff_get_reloc_upper_bound
 339   (bfd *, sec_ptr);
 340 extern asymbol *coff_make_empty_symbol
 341   (bfd *);
 342 extern void coff_print_symbol
 343   (bfd *, void * filep, asymbol *, bfd_print_symbol_type);
 344 extern void coff_get_symbol_info
 345   (bfd *, asymbol *, symbol_info *ret);
 346 #define coff_get_symbol_version_string \
 347   _bfd_nosymbols_get_symbol_version_string
 348 extern bfd_boolean _bfd_coff_is_local_label_name
 349   (bfd *, const char *);
 350 extern asymbol *coff_bfd_make_debug_symbol
 351   (bfd *, void *, unsigned long);
 352 extern bfd_boolean coff_find_nearest_line
 353   (bfd *, asymbol **, asection *, bfd_vma,
 354    const char **, const char **, unsigned int *, unsigned int *);
 355 #define coff_find_line _bfd_nosymbols_find_line
 356 struct dwarf_debug_section;
 357 extern bfd_boolean coff_find_nearest_line_with_names
 358   (bfd *, asymbol **, asection *, bfd_vma, const char **, const char **,
 359    unsigned int *, const struct dwarf_debug_section *);
 360 extern bfd_boolean coff_find_inliner_info
 361   (bfd *, const char **, const char **, unsigned int *);
 362 extern int coff_sizeof_headers
 363   (bfd *, struct bfd_link_info *);
 364 extern bfd_boolean bfd_coff_reloc16_relax_section
 365   (bfd *, asection *, struct bfd_link_info *, bfd_boolean *);
 366 extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
 367   (bfd *, struct bfd_link_info *, struct bfd_link_order *,
 368    bfd_byte *, bfd_boolean, asymbol **);
 369 extern bfd_vma bfd_coff_reloc16_get_value
 370   (arelent *, struct bfd_link_info *, asection *);
 371 extern void bfd_perform_slip
 372   (bfd *, unsigned int, asection *, bfd_vma);
 373
 374 /* Functions and types in cofflink.c.  */
 375
 376 #define STRING_SIZE_SIZE 4
 377
 378 /* We use a hash table to merge identical enum, struct, and union
 379    definitions in the linker.  */
 380
 381 /* Information we keep for a single element (an enum value, a
 382    structure or union field) in the debug merge hash table.  */
 383
 384 struct coff_debug_merge_element
 385 {
 386   /* Next element.  */
 387   struct coff_debug_merge_element *next;
 388
 389   /* Name.  */
 390   const char *name;
 391
 392   /* Type.  */
 393   unsigned int type;
 394
 395   /* Symbol index for complex type.  */
 396   long tagndx;
 397 };
 398
 399 /* A linked list of debug merge entries for a given name.  */
 400
 401 struct coff_debug_merge_type
 402 {
 403   /* Next type with the same name.  */
 404   struct coff_debug_merge_type *next;
 405
 406   /* Class of type.  */
 407   int type_class;
 408
 409   /* Symbol index where this type is defined.  */
 410   long indx;
 411
 412   /* List of elements.  */
 413   struct coff_debug_merge_element *elements;
 414 };
 415
 416 /* Information we store in the debug merge hash table.  */
 417
 418 struct coff_debug_merge_hash_entry
 419 {
 420   struct bfd_hash_entry root;
 421
 422   /* A list of types with this name.  */
 423   struct coff_debug_merge_type *types;
 424 };
 425
 426 /* The debug merge hash table.  */
 427
 428 struct coff_debug_merge_hash_table
 429 {
 430   struct bfd_hash_table root;
 431 };
 432
 433 /* Initialize a COFF debug merge hash table.  */
 434
 435 #define coff_debug_merge_hash_table_init(table) \
 436   (bfd_hash_table_init (&(table)->root, _bfd_coff_debug_merge_hash_newfunc, \
 437                         sizeof (struct coff_debug_merge_hash_entry)))
 438
 439 /* Free a COFF debug merge hash table.  */
 440
 441 #define coff_debug_merge_hash_table_free(table) \
 442   (bfd_hash_table_free (&(table)->root))
 443
 444 /* Look up an entry in a COFF debug merge hash table.  */
 445
 446 #define coff_debug_merge_hash_lookup(table, string, create, copy) \
 447   ((struct coff_debug_merge_hash_entry *) \
 448    bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
 449
 450 /* Information we keep for each section in the output file when doing
 451    a relocatable link.  */
 452
 453 struct coff_link_section_info
 454 {
 455   /* The relocs to be output.  */
 456   struct internal_reloc *relocs;
 457   /* For each reloc against a global symbol whose index was not known
 458      when the reloc was handled, the global hash table entry.  */
 459   struct coff_link_hash_entry **rel_hashes;
 460 };
 461
 462 /* Information that we pass around while doing the final link step.  */
 463
 464 struct coff_final_link_info
 465 {
 466   /* General link information.  */
 467   struct bfd_link_info *info;
 468   /* Output BFD.  */
 469   bfd *output_bfd;
 470   /* Used to indicate failure in traversal routine.  */
 471   bfd_boolean failed;
 472   /* If doing "task linking" set only during the time when we want the
 473      global symbol writer to convert the storage class of defined global
 474      symbols from global to static. */
 475   bfd_boolean global_to_static;
 476   /* Hash table for long symbol names.  */
 477   struct bfd_strtab_hash *strtab;
 478   /* When doing a relocatable link, an array of information kept for
 479      each output section, indexed by the target_index field.  */
 480   struct coff_link_section_info *section_info;
 481   /* Symbol index of last C_FILE symbol (-1 if none).  */
 482   long last_file_index;
 483   /* Contents of last C_FILE symbol.  */
 484   struct internal_syment last_file;
 485   /* Symbol index of first aux entry of last .bf symbol with an empty
 486      endndx field (-1 if none).  */
 487   long last_bf_index;
 488   /* Contents of last_bf_index aux entry.  */
 489   union internal_auxent last_bf;
 490   /* Hash table used to merge debug information.  */
 491   struct coff_debug_merge_hash_table debug_merge;
 492   /* Buffer large enough to hold swapped symbols of any input file.  */
 493   struct internal_syment *internal_syms;
 494   /* Buffer large enough to hold sections of symbols of any input file.  */
 495   asection **sec_ptrs;
 496   /* Buffer large enough to hold output indices of symbols of any
 497      input file.  */
 498   long *sym_indices;
 499   /* Buffer large enough to hold output symbols for any input file.  */
 500   bfd_byte *outsyms;
 501   /* Buffer large enough to hold external line numbers for any input
 502      section.  */
 503   bfd_byte *linenos;
 504   /* Buffer large enough to hold any input section.  */
 505   bfd_byte *contents;
 506   /* Buffer large enough to hold external relocs of any input section.  */
 507   bfd_byte *external_relocs;
 508   /* Buffer large enough to hold swapped relocs of any input section.  */
 509   struct internal_reloc *internal_relocs;
 510 };
 511
 512 /* Most COFF variants have no way to record the alignment of a
 513    section.  This struct is used to set a specific alignment based on
 514    the name of the section.  */
 515
 516 struct coff_section_alignment_entry
 517 {
 518   /* The section name.  */
 519   const char *name;
 520
 521   /* This is either (unsigned int) -1, indicating that the section
 522      name must match exactly, or it is the number of letters which
 523      must match at the start of the name.  */
 524   unsigned int comparison_length;
 525
 526   /* These macros may be used to fill in the first two fields in a
 527      structure initialization.  */
 528 #define COFF_SECTION_NAME_EXACT_MATCH(name) (name), ((unsigned int) -1)
 529 #define COFF_SECTION_NAME_PARTIAL_MATCH(name) (name), (sizeof (name) - 1)
 530
 531   /* Only use this entry if the default section alignment for this
 532      target is at least that much (as a power of two).  If this field
 533      is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
 534   unsigned int default_alignment_min;
 535
 536   /* Only use this entry if the default section alignment for this
 537      target is no greater than this (as a power of two).  If this
 538      field is COFF_ALIGNMENT_FIELD_EMPTY, it should be ignored.  */
 539   unsigned int default_alignment_max;
 540
 541 #define COFF_ALIGNMENT_FIELD_EMPTY ((unsigned int) -1)
 542
 543   /* The desired alignment for this section (as a power of two).  */
 544   unsigned int alignment_power;
 545 };
 546
 547 extern struct bfd_hash_entry *_bfd_coff_link_hash_newfunc
 548   (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 549 extern bfd_boolean _bfd_coff_link_hash_table_init
 550   (struct coff_link_hash_table *, bfd *,
 551    struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
 552                                struct bfd_hash_table *,
 553                                const char *),
 554    unsigned int);
 555 extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
 556   (bfd *);
 557 extern const char *_bfd_coff_internal_syment_name
 558   (bfd *, const struct internal_syment *, char *);
 559 extern bfd_boolean _bfd_coff_section_already_linked
 560   (bfd *, asection *, struct bfd_link_info *);
 561 extern bfd_boolean _bfd_coff_link_add_symbols
 562   (bfd *, struct bfd_link_info *);
 563 extern bfd_boolean _bfd_coff_final_link
 564   (bfd *, struct bfd_link_info *);
 565 extern struct internal_reloc *_bfd_coff_read_internal_relocs
 566   (bfd *, asection *, bfd_boolean, bfd_byte *, bfd_boolean,
 567    struct internal_reloc *);
 568 extern bfd_boolean _bfd_coff_generic_relocate_section
 569   (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
 570    struct internal_reloc *, struct internal_syment *, asection **);
 571 extern struct bfd_hash_entry *_bfd_coff_debug_merge_hash_newfunc
 572   (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
 573 extern bfd_boolean _bfd_coff_write_global_sym
 574   (struct bfd_hash_entry *, void *);
 575 extern bfd_boolean _bfd_coff_write_task_globals
 576   (struct coff_link_hash_entry *, void *);
 577 extern bfd_boolean _bfd_coff_link_input_bfd
 578   (struct coff_final_link_info *, bfd *);
 579 extern bfd_boolean _bfd_coff_reloc_link_order
 580   (bfd *, struct coff_final_link_info *, asection *,
 581    struct bfd_link_order *);
 582 extern bfd_boolean bfd_coff_gc_sections
 583   (bfd *, struct bfd_link_info *);
 584
 585
 586 #define coff_get_section_contents_in_window \
 587   _bfd_generic_get_section_contents_in_window
 588
 589 /* Functions in xcofflink.c.  */
 590
 591 extern long _bfd_xcoff_get_dynamic_symtab_upper_bound
 592   (bfd *);
 593 extern long _bfd_xcoff_canonicalize_dynamic_symtab
 594   (bfd *, asymbol **);
 595 extern long _bfd_xcoff_get_dynamic_reloc_upper_bound
 596   (bfd *);
 597 extern long _bfd_xcoff_canonicalize_dynamic_reloc
 598   (bfd *, arelent **, asymbol **);
 599 extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create
 600   (bfd *);
 601 extern bfd_boolean _bfd_xcoff_bfd_link_add_symbols
 602   (bfd *, struct bfd_link_info *);
 603 extern bfd_boolean _bfd_xcoff_bfd_final_link
 604   (bfd *, struct bfd_link_info *);
 605 extern bfd_boolean _bfd_xcoff_define_common_symbol
 606   (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *);
 607 extern bfd_boolean _bfd_ppc_xcoff_relocate_section
 608   (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
 609    struct internal_reloc *, struct internal_syment *, asection **);
 610
 611 /* Functions in coff-ppc.c.  FIXME: These are called by pe.em in the
 612    linker, and so should start with bfd and be declared in bfd.h.  */
 613
 614 extern bfd_boolean ppc_allocate_toc_section
 615   (struct bfd_link_info *);
 616 extern bfd_boolean ppc_process_before_allocation
 617   (bfd *, struct bfd_link_info *);
 618 /* Extracted from coffcode.h.  */
 619
 620 typedef struct coff_ptr_struct
 621 {
 622   /* Remembers the offset from the first symbol in the file for
 623      this symbol. Generated by coff_renumber_symbols.  */
 624   unsigned int offset;
 625
 626   /* Should the value of this symbol be renumbered.  Used for
 627      XCOFF C_BSTAT symbols.  Set by coff_slurp_symbol_table.  */
 628   unsigned int fix_value : 1;
 629
 630   /* Should the tag field of this symbol be renumbered.
 631      Created by coff_pointerize_aux.  */
 632   unsigned int fix_tag : 1;
 633
 634   /* Should the endidx field of this symbol be renumbered.
 635      Created by coff_pointerize_aux.  */
 636   unsigned int fix_end : 1;
 637
 638   /* Should the x_csect.x_scnlen field be renumbered.
 639      Created by coff_pointerize_aux.  */
 640   unsigned int fix_scnlen : 1;
 641
 642   /* Fix up an XCOFF C_BINCL/C_EINCL symbol.  The value is the
 643      index into the line number entries.  Set by coff_slurp_symbol_table.  */
 644   unsigned int fix_line : 1;
 645
 646   /* The container for the symbol structure as read and translated
 647      from the file.  */
 648   union
 649   {
 650     union internal_auxent auxent;
 651     struct internal_syment syment;
 652   } u;
 653
 654  /* Selector for the union above.  */
 655  bfd_boolean is_sym;
 656 } combined_entry_type;
 657
 658
 659 /* Each canonical asymbol really looks like this: */
 660
 661 typedef struct coff_symbol_struct
 662 {
 663   /* The actual symbol which the rest of BFD works with */
 664   asymbol symbol;
 665
 666   /* A pointer to the hidden information for this symbol */
 667   combined_entry_type *native;
 668
 669   /* A pointer to the linenumber information for this symbol */
 670   struct lineno_cache_entry *lineno;
 671
 672   /* Have the line numbers been relocated yet ? */
 673   bfd_boolean done_lineno;
 674 } coff_symbol_type;
 675 /* COFF symbol classifications.  */
 676
 677 enum coff_symbol_classification
 678 {
 679   /* Global symbol.  */
 680   COFF_SYMBOL_GLOBAL,
 681   /* Common symbol.  */
 682   COFF_SYMBOL_COMMON,
 683   /* Undefined symbol.  */
 684   COFF_SYMBOL_UNDEFINED,
 685   /* Local symbol.  */
 686   COFF_SYMBOL_LOCAL,
 687   /* PE section symbol.  */
 688   COFF_SYMBOL_PE_SECTION
 689 };
 690
 691 typedef asection * (*coff_gc_mark_hook_fn)
 692   (asection *, struct bfd_link_info *, struct internal_reloc *,
 693    struct coff_link_hash_entry *, struct internal_syment *);
 694
 695 typedef struct
 696 {
 697   void (*_bfd_coff_swap_aux_in)
 698     (bfd *, void *, int, int, int, int, void *);
 699
 700   void (*_bfd_coff_swap_sym_in)
 701     (bfd *, void *, void *);
 702
 703   void (*_bfd_coff_swap_lineno_in)
 704     (bfd *, void *, void *);
 705
 706   unsigned int (*_bfd_coff_swap_aux_out)
 707     (bfd *, void *, int, int, int, int, void *);
 708
 709   unsigned int (*_bfd_coff_swap_sym_out)
 710     (bfd *, void *, void *);
 711
 712   unsigned int (*_bfd_coff_swap_lineno_out)
 713     (bfd *, void *, void *);
 714
 715   unsigned int (*_bfd_coff_swap_reloc_out)
 716     (bfd *, void *, void *);
 717
 718   unsigned int (*_bfd_coff_swap_filehdr_out)
 719     (bfd *, void *, void *);
 720
 721   unsigned int (*_bfd_coff_swap_aouthdr_out)
 722     (bfd *, void *, void *);
 723
 724   unsigned int (*_bfd_coff_swap_scnhdr_out)
 725     (bfd *, void *, void *);
 726
 727   unsigned int _bfd_filhsz;
 728   unsigned int _bfd_aoutsz;
 729   unsigned int _bfd_scnhsz;
 730   unsigned int _bfd_symesz;
 731   unsigned int _bfd_auxesz;
 732   unsigned int _bfd_relsz;
 733   unsigned int _bfd_linesz;
 734   unsigned int _bfd_filnmlen;
 735   bfd_boolean _bfd_coff_long_filenames;
 736
 737   bfd_boolean _bfd_coff_long_section_names;
 738   bfd_boolean (*_bfd_coff_set_long_section_names)
 739     (bfd *, int);
 740
 741   unsigned int _bfd_coff_default_section_alignment_power;
 742   bfd_boolean _bfd_coff_force_symnames_in_strings;
 743   unsigned int _bfd_coff_debug_string_prefix_length;
 744   unsigned int _bfd_coff_max_nscns;
 745
 746   void (*_bfd_coff_swap_filehdr_in)
 747     (bfd *, void *, void *);
 748
 749   void (*_bfd_coff_swap_aouthdr_in)
 750     (bfd *, void *, void *);
 751
 752   void (*_bfd_coff_swap_scnhdr_in)
 753     (bfd *, void *, void *);
 754
 755   void (*_bfd_coff_swap_reloc_in)
 756     (bfd *abfd, void *, void *);
 757
 758   bfd_boolean (*_bfd_coff_bad_format_hook)
 759     (bfd *, void *);
 760
 761   bfd_boolean (*_bfd_coff_set_arch_mach_hook)
 762     (bfd *, void *);
 763
 764   void * (*_bfd_coff_mkobject_hook)
 765     (bfd *, void *, void *);
 766
 767   bfd_boolean (*_bfd_styp_to_sec_flags_hook)
 768     (bfd *, void *, const char *, asection *, flagword *);
 769
 770   void (*_bfd_set_alignment_hook)
 771     (bfd *, asection *, void *);
 772
 773   bfd_boolean (*_bfd_coff_slurp_symbol_table)
 774     (bfd *);
 775
 776   bfd_boolean (*_bfd_coff_symname_in_debug)
 777     (bfd *, struct internal_syment *);
 778
 779   bfd_boolean (*_bfd_coff_pointerize_aux_hook)
 780     (bfd *, combined_entry_type *, combined_entry_type *,
 781      unsigned int, combined_entry_type *);
 782
 783   bfd_boolean (*_bfd_coff_print_aux)
 784     (bfd *, FILE *, combined_entry_type *, combined_entry_type *,
 785      combined_entry_type *, unsigned int);
 786
 787   void (*_bfd_coff_reloc16_extra_cases)
 788     (bfd *, struct bfd_link_info *, struct bfd_link_order *, arelent *,
 789      bfd_byte *, unsigned int *, unsigned int *);
 790
 791   int (*_bfd_coff_reloc16_estimate)
 792     (bfd *, asection *, arelent *, unsigned int,
 793      struct bfd_link_info *);
 794
 795   enum coff_symbol_classification (*_bfd_coff_classify_symbol)
 796     (bfd *, struct internal_syment *);
 797
 798   bfd_boolean (*_bfd_coff_compute_section_file_positions)
 799     (bfd *);
 800
 801   bfd_boolean (*_bfd_coff_start_final_link)
 802     (bfd *, struct bfd_link_info *);
 803
 804   bfd_boolean (*_bfd_coff_relocate_section)
 805     (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
 806      struct internal_reloc *, struct internal_syment *, asection **);
 807
 808   reloc_howto_type *(*_bfd_coff_rtype_to_howto)
 809     (bfd *, asection *, struct internal_reloc *,
 810      struct coff_link_hash_entry *, struct internal_syment *, bfd_vma *);
 811
 812   bfd_boolean (*_bfd_coff_adjust_symndx)
 813     (bfd *, struct bfd_link_info *, bfd *, asection *,
 814      struct internal_reloc *, bfd_boolean *);
 815
 816   bfd_boolean (*_bfd_coff_link_add_one_symbol)
 817     (struct bfd_link_info *, bfd *, const char *, flagword,
 818      asection *, bfd_vma, const char *, bfd_boolean, bfd_boolean,
 819      struct bfd_link_hash_entry **);
 820
 821   bfd_boolean (*_bfd_coff_link_output_has_begun)
 822     (bfd *, struct coff_final_link_info *);
 823
 824   bfd_boolean (*_bfd_coff_final_link_postscript)
 825     (bfd *, struct coff_final_link_info *);
 826
 827   bfd_boolean (*_bfd_coff_print_pdata)
 828     (bfd *, void *);
 829
 830 } bfd_coff_backend_data;
 831
 832 #define coff_backend_info(abfd) \
 833   ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
 834
 835 #define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
 836   ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
 837
 838 #define bfd_coff_swap_sym_in(a,e,i) \
 839   ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
 840
 841 #define bfd_coff_swap_lineno_in(a,e,i) \
 842   ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
 843
 844 #define bfd_coff_swap_reloc_out(abfd, i, o) \
 845   ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
 846
 847 #define bfd_coff_swap_lineno_out(abfd, i, o) \
 848   ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
 849
 850 #define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
 851   ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
 852
 853 #define bfd_coff_swap_sym_out(abfd, i,o) \
 854   ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
 855
 856 #define bfd_coff_swap_scnhdr_out(abfd, i,o) \
 857   ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
 858
 859 #define bfd_coff_swap_filehdr_out(abfd, i,o) \
 860   ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
 861
 862 #define bfd_coff_swap_aouthdr_out(abfd, i,o) \
 863   ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
 864
 865 #define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
 866 #define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
 867 #define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
 868 #define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
 869 #define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
 870 #define bfd_coff_relsz(abfd)  (coff_backend_info (abfd)->_bfd_relsz)
 871 #define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
 872 #define bfd_coff_filnmlen(abfd) (coff_backend_info (abfd)->_bfd_filnmlen)
 873 #define bfd_coff_long_filenames(abfd) \
 874   (coff_backend_info (abfd)->_bfd_coff_long_filenames)
 875 #define bfd_coff_long_section_names(abfd) \
 876   (coff_backend_info (abfd)->_bfd_coff_long_section_names)
 877 #define bfd_coff_set_long_section_names(abfd, enable) \
 878   ((coff_backend_info (abfd)->_bfd_coff_set_long_section_names) (abfd, enable))
 879 #define bfd_coff_default_section_alignment_power(abfd) \
 880   (coff_backend_info (abfd)->_bfd_coff_default_section_alignment_power)
 881 #define bfd_coff_max_nscns(abfd) \
 882   (coff_backend_info (abfd)->_bfd_coff_max_nscns)
 883
 884 #define bfd_coff_swap_filehdr_in(abfd, i,o) \
 885   ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
 886
 887 #define bfd_coff_swap_aouthdr_in(abfd, i,o) \
 888   ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
 889
 890 #define bfd_coff_swap_scnhdr_in(abfd, i,o) \
 891   ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
 892
 893 #define bfd_coff_swap_reloc_in(abfd, i, o) \
 894   ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
 895
 896 #define bfd_coff_bad_format_hook(abfd, filehdr) \
 897   ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
 898
 899 #define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
 900   ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
 901 #define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
 902   ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook)\
 903    (abfd, filehdr, aouthdr))
 904
 905 #define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name, section, flags_ptr)\
 906   ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook)\
 907    (abfd, scnhdr, name, section, flags_ptr))
 908
 909 #define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
 910   ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
 911
 912 #define bfd_coff_slurp_symbol_table(abfd)\
 913   ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
 914
 915 #define bfd_coff_symname_in_debug(abfd, sym)\
 916   ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
 917
 918 #define bfd_coff_force_symnames_in_strings(abfd)\
 919   (coff_backend_info (abfd)->_bfd_coff_force_symnames_in_strings)
 920
 921 #define bfd_coff_debug_string_prefix_length(abfd)\
 922   (coff_backend_info (abfd)->_bfd_coff_debug_string_prefix_length)
 923
 924 #define bfd_coff_print_aux(abfd, file, base, symbol, aux, indaux)\
 925   ((coff_backend_info (abfd)->_bfd_coff_print_aux)\
 926    (abfd, file, base, symbol, aux, indaux))
 927
 928 #define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order,\
 929                                      reloc, data, src_ptr, dst_ptr)\
 930   ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
 931    (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
 932
 933 #define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
 934   ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
 935    (abfd, section, reloc, shrink, link_info))
 936
 937 #define bfd_coff_classify_symbol(abfd, sym)\
 938   ((coff_backend_info (abfd)->_bfd_coff_classify_symbol)\
 939    (abfd, sym))
 940
 941 #define bfd_coff_compute_section_file_positions(abfd)\
 942   ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
 943    (abfd))
 944
 945 #define bfd_coff_start_final_link(obfd, info)\
 946   ((coff_backend_info (obfd)->_bfd_coff_start_final_link)\
 947    (obfd, info))
 948 #define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
 949   ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
 950    (obfd, info, ibfd, o, con, rel, isyms, secs))
 951 #define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
 952   ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
 953    (abfd, sec, rel, h, sym, addendp))
 954 #define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
 955   ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
 956    (obfd, info, ibfd, sec, rel, adjustedp))
 957 #define bfd_coff_link_add_one_symbol(info, abfd, name, flags, section,\
 958                                      value, string, cp, coll, hashp)\
 959   ((coff_backend_info (abfd)->_bfd_coff_link_add_one_symbol)\
 960    (info, abfd, name, flags, section, value, string, cp, coll, hashp))
 961
 962 #define bfd_coff_link_output_has_begun(a,p) \
 963   ((coff_backend_info (a)->_bfd_coff_link_output_has_begun) (a, p))
 964 #define bfd_coff_final_link_postscript(a,p) \
 965   ((coff_backend_info (a)->_bfd_coff_final_link_postscript) (a, p))
 966
 967 #define bfd_coff_have_print_pdata(a) \
 968   (coff_backend_info (a)->_bfd_coff_print_pdata)
 969 #define bfd_coff_print_pdata(a,p) \
 970   ((coff_backend_info (a)->_bfd_coff_print_pdata) (a, p))
 971
 972 /* Macro: Returns true if the bfd is a PE executable as opposed to a
 973    PE object file.  */
 974 #define bfd_pei_p(abfd) \
 975   (CONST_STRNEQ ((abfd)->xvec->name, "pei-"))
 976 #ifdef __cplusplus
 977 }
 978 #endif
 979 #endif