bfd/libcoff.h

   1 /* BFD COFF object file private structure.
   2    Copyright (C) 1990, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
   3    Written by Cygnus Support.
   4
   5 This file is part of BFD, the Binary File Descriptor library.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #include "bfdlink.h"
  22
  23 /* Object file tdata; access macros */
  24
  25 #define coff_data(bfd)          ((bfd)->tdata.coff_obj_data)
  26 #define exec_hdr(bfd)           (coff_data(bfd)->hdr)
  27 #define obj_pe(bfd)             (coff_data(bfd)->pe)
  28 #define obj_symbols(bfd)        (coff_data(bfd)->symbols)
  29 #define obj_sym_filepos(bfd)    (coff_data(bfd)->sym_filepos)
  30
  31 #define obj_relocbase(bfd)      (coff_data(bfd)->relocbase)
  32 #define obj_raw_syments(bfd)    (coff_data(bfd)->raw_syments)
  33 #define obj_raw_syment_count(bfd)       (coff_data(bfd)->raw_syment_count)
  34 #define obj_convert(bfd)        (coff_data(bfd)->conversion_table)
  35 #define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
  36
  37 #define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
  38 #define obj_coff_keep_syms(bfd) (coff_data (bfd)->keep_syms)
  39 #define obj_coff_strings(bfd)   (coff_data (bfd)->strings)
  40 #define obj_coff_keep_strings(bfd) (coff_data (bfd)->keep_strings)
  41 #define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
  42
  43 /* `Tdata' information kept for COFF files.  */
  44
  45 typedef struct coff_tdata
  46 {
  47   struct   coff_symbol_struct *symbols; /* symtab for input bfd */
  48   unsigned int *conversion_table;
  49   int conv_table_size;
  50   file_ptr sym_filepos;
  51
  52   struct coff_ptr_struct *raw_syments;
  53   unsigned int raw_syment_count;
  54
  55   /* These are only valid once writing has begun */
  56   long int relocbase;
  57
  58   /* These members communicate important constants about the symbol table
  59      to GDB's symbol-reading code.  These `constants' unfortunately vary
  60      from coff implementation to implementation...  */
  61   unsigned local_n_btmask;
  62   unsigned local_n_btshft;
  63   unsigned local_n_tmask;
  64   unsigned local_n_tshift;
  65   unsigned local_symesz;
  66   unsigned local_auxesz;
  67   unsigned local_linesz;
  68
  69   /* The unswapped external symbols.  May be NULL.  Read by
  70      _bfd_coff_get_external_symbols.  */
  71   PTR external_syms;
  72   /* If this is true, the external_syms may not be freed.  */
  73   boolean keep_syms;
  74
  75   /* The string table.  May be NULL.  Read by
  76      _bfd_coff_read_string_table.  */
  77   char *strings;
  78   /* If this is true, the strings may not be freed.  */
  79   boolean keep_strings;
  80
  81   /* is this a PE format coff file */
  82   int pe;
  83   /* Used by the COFF backend linker.  */
  84   struct coff_link_hash_entry **sym_hashes;
  85
  86   struct bfd_link_info *link_info;
  87 } coff_data_type;
  88
  89 /* Tdata for pe image files. */
  90 typedef struct pe_tdata
  91 {
  92   coff_data_type coff;
  93   struct internal_extra_pe_aouthdr pe_opthdr;
  94   int dll;
  95   int has_reloc_section;
  96 } pe_data_type;
  97
  98 #define pe_data(bfd)            ((bfd)->tdata.pe_obj_data)
  99
 100
 101 /* We take the address of the first element of a asymbol to ensure that the
 102  * macro is only ever applied to an asymbol.  */
 103 #define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
 104
 105 /* The used_by_bfd field of a section may be set to a pointer to this
 106    structure.  */
 107
 108 struct coff_section_tdata
 109 {
 110   /* The relocs, swapped into COFF internal form.  This may be NULL.  */
 111   struct internal_reloc *relocs;
 112   /* If this is true, the relocs entry may not be freed.  */
 113   boolean keep_relocs;
 114   /* The section contents.  This may be NULL.  */
 115   bfd_byte *contents;
 116   /* If this is true, the contents entry may not be freed.  */
 117   boolean keep_contents;
 118 };
 119
 120 /* An accessor macro for the coff_section_tdata structure.  */
 121 #define coff_section_data(abfd, sec) \
 122   ((struct coff_section_tdata *) (sec)->used_by_bfd)
 123
 124 /* COFF linker hash table entries.  */
 125
 126 struct coff_link_hash_entry
 127 {
 128   struct bfd_link_hash_entry root;
 129
 130   /* Symbol index in output file.  Set to -1 initially.  Set to -2 if
 131      there is a reloc against this symbol.  */
 132   long indx;
 133
 134   /* Symbol type.  */
 135   unsigned short type;
 136
 137   /* Symbol class.  */
 138   unsigned char class;
 139
 140   /* Number of auxiliary entries.  */
 141   char numaux;
 142
 143   /* BFD to take auxiliary entries from.  */
 144   bfd *auxbfd;
 145
 146   /* Pointer to array of auxiliary entries, if any.  */
 147   union internal_auxent *aux;
 148 };
 149
 150 /* COFF linker hash table.  */
 151
 152 struct coff_link_hash_table
 153 {
 154   struct bfd_link_hash_table root;
 155 };
 156
 157 /* Look up an entry in a COFF linker hash table.  */
 158
 159 #define coff_link_hash_lookup(table, string, create, copy, follow)      \
 160   ((struct coff_link_hash_entry *)                                      \
 161    bfd_link_hash_lookup (&(table)->root, (string), (create),            \
 162                          (copy), (follow)))
 163
 164 /* Traverse a COFF linker hash table.  */
 165
 166 #define coff_link_hash_traverse(table, func, info)                      \
 167   (bfd_link_hash_traverse                                               \
 168    (&(table)->root,                                                     \
 169     (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func),  \
 170     (info)))
 171
 172 /* Get the COFF linker hash table from a link_info structure.  */
 173
 174 #define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
 175
 176 /* Functions in coffgen.c.  */
 177 extern const bfd_target *coff_object_p PARAMS ((bfd *));
 178 extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int));
 179 extern long coff_get_symtab_upper_bound PARAMS ((bfd *));
 180 extern long coff_get_symtab PARAMS ((bfd *, asymbol **));
 181 extern int coff_count_linenumbers PARAMS ((bfd *));
 182 extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *));
 183 extern boolean coff_renumber_symbols PARAMS ((bfd *, int *));
 184 extern void coff_mangle_symbols PARAMS ((bfd *));
 185 extern boolean coff_write_symbols PARAMS ((bfd *));
 186 extern boolean coff_write_linenumbers PARAMS ((bfd *));
 187 extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *));
 188 extern asymbol *coff_section_symbol PARAMS ((bfd *, char *));
 189 extern boolean _bfd_coff_get_external_symbols PARAMS ((bfd *));
 190 extern const char *_bfd_coff_read_string_table PARAMS ((bfd *));
 191 extern boolean _bfd_coff_free_symbols PARAMS ((bfd *));
 192 extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *));
 193 extern long coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
 194 extern asymbol *coff_make_empty_symbol PARAMS ((bfd *));
 195 extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *,
 196                                        bfd_print_symbol_type how));
 197 extern void coff_get_symbol_info PARAMS ((bfd *, asymbol *,
 198                                           symbol_info *ret));
 199 extern asymbol *coff_bfd_make_debug_symbol PARAMS ((bfd *, PTR,
 200                                                     unsigned long));
 201 extern boolean coff_find_nearest_line PARAMS ((bfd *,
 202                                                asection *,
 203                                                asymbol **,
 204                                                bfd_vma offset,
 205                                                CONST char **filename_ptr,
 206                                                CONST char **functionname_ptr,
 207                                                unsigned int *line_ptr));
 208 extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc));
 209 extern boolean bfd_coff_reloc16_relax_section
 210   PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
 211 extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
 212   PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
 213            bfd_byte *, boolean relocateable, asymbol **));
 214 extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *,
 215                                                    struct bfd_link_info *,
 216                                                    asection *));
 217 extern void bfd_perform_slip PARAMS ((bfd *abfd, unsigned int slip,
 218                                       asection *input_section,
 219                                       bfd_vma val));
 220
 221 /* Functions in cofflink.c.  */
 222
 223 extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
 224   PARAMS ((bfd *));
 225 extern boolean _bfd_coff_link_add_symbols
 226   PARAMS ((bfd *, struct bfd_link_info *));
 227 extern boolean _bfd_coff_final_link
 228   PARAMS ((bfd *, struct bfd_link_info *));
 229 extern struct internal_reloc *_bfd_coff_read_internal_relocs
 230   PARAMS ((bfd *, asection *, boolean, bfd_byte *, boolean,
 231            struct internal_reloc *));
 232 extern boolean _bfd_coff_generic_relocate_section
 233   PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
 234            struct internal_reloc *, struct internal_syment *, asection **));
 235
 236 /* And more taken from the source .. */
 237
 238 typedef struct coff_ptr_struct
 239 {
 240
 241         /* Remembers the offset from the first symbol in the file for
 242           this symbol. Generated by coff_renumber_symbols. */
 243 unsigned int offset;
 244
 245         /* Should the value of this symbol be renumbered.  Used for
 246           XCOFF C_BSTAT symbols.  Set by coff_slurp_symbol_table.  */
 247 unsigned int fix_value : 1;
 248
 249         /* Should the tag field of this symbol be renumbered.
 250           Created by coff_pointerize_aux. */
 251 unsigned int fix_tag : 1;
 252
 253         /* Should the endidx field of this symbol be renumbered.
 254           Created by coff_pointerize_aux. */
 255 unsigned int fix_end : 1;
 256
 257         /* Should the x_csect.x_scnlen field be renumbered.
 258           Created by coff_slurp_symbol_table. */
 259 unsigned int fix_scnlen : 1;
 260
 261         /* The container for the symbol structure as read and translated
 262            from the file. */
 263
 264 union {
 265    union internal_auxent auxent;
 266    struct internal_syment syment;
 267  } u;
 268 } combined_entry_type;
 269
 270
 271  /* Each canonical asymbol really looks like this: */
 272
 273 typedef struct coff_symbol_struct
 274 {
 275     /* The actual symbol which the rest of BFD works with */
 276 asymbol symbol;
 277
 278     /* A pointer to the hidden information for this symbol */
 279 combined_entry_type *native;
 280
 281     /* A pointer to the linenumber information for this symbol */
 282 struct lineno_cache_entry *lineno;
 283
 284     /* Have the line numbers been relocated yet ? */
 285 boolean done_lineno;
 286 } coff_symbol_type;
 287 typedef struct
 288 {
 289   void (*_bfd_coff_swap_aux_in) PARAMS ((
 290        bfd            *abfd,
 291        PTR             ext,
 292        int             type,
 293        int             class,
 294        int             indaux,
 295        int             numaux,
 296        PTR             in));
 297
 298   void (*_bfd_coff_swap_sym_in) PARAMS ((
 299        bfd            *abfd ,
 300        PTR             ext,
 301        PTR             in));
 302
 303   void (*_bfd_coff_swap_lineno_in) PARAMS ((
 304        bfd            *abfd,
 305        PTR            ext,
 306        PTR             in));
 307
 308  unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
 309        bfd      *abfd,
 310        PTR      in,
 311        int      type,
 312        int      class,
 313        int     indaux,
 314        int     numaux,
 315        PTR      ext));
 316
 317  unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
 318       bfd      *abfd,
 319       PTR       in,
 320       PTR       ext));
 321
 322  unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
 323         bfd     *abfd,
 324         PTR     in,
 325         PTR     ext));
 326
 327  unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
 328         bfd     *abfd,
 329         PTR     src,
 330         PTR     dst));
 331
 332  unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
 333         bfd     *abfd,
 334         PTR     in,
 335         PTR     out));
 336
 337  unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
 338         bfd     *abfd,
 339         PTR     in,
 340         PTR     out));
 341
 342  unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
 343         bfd     *abfd,
 344         PTR     in,
 345         PTR     out));
 346
 347  unsigned int _bfd_filhsz;
 348  unsigned int _bfd_aoutsz;
 349  unsigned int _bfd_scnhsz;
 350  unsigned int _bfd_symesz;
 351  unsigned int _bfd_auxesz;
 352  unsigned int _bfd_relsz;
 353  unsigned int _bfd_linesz;
 354  boolean _bfd_coff_long_filenames;
 355  void (*_bfd_coff_swap_filehdr_in) PARAMS ((
 356        bfd     *abfd,
 357        PTR     ext,
 358        PTR     in));
 359  void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
 360        bfd     *abfd,
 361        PTR     ext,
 362        PTR     in));
 363  void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
 364        bfd     *abfd,
 365        PTR     ext,
 366        PTR     in));
 367  void (*_bfd_coff_swap_reloc_in) PARAMS ((
 368        bfd     *abfd,
 369        PTR     ext,
 370        PTR     in));
 371  boolean (*_bfd_coff_bad_format_hook) PARAMS ((
 372        bfd     *abfd,
 373        PTR     internal_filehdr));
 374  boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
 375        bfd     *abfd,
 376        PTR     internal_filehdr));
 377  PTR (*_bfd_coff_mkobject_hook) PARAMS ((
 378        bfd     *abfd,
 379        PTR     internal_filehdr,
 380        PTR     internal_aouthdr));
 381  flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
 382        bfd     *abfd,
 383        PTR     internal_scnhdr,
 384        const char *name));
 385  asection *(*_bfd_make_section_hook) PARAMS ((
 386        bfd     *abfd,
 387        char    *name));
 388  void (*_bfd_set_alignment_hook) PARAMS ((
 389        bfd     *abfd,
 390        asection *sec,
 391        PTR     internal_scnhdr));
 392  boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
 393        bfd     *abfd));
 394  boolean (*_bfd_coff_symname_in_debug) PARAMS ((
 395        bfd     *abfd,
 396        struct internal_syment *sym));
 397  void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
 398        bfd     *abfd,
 399        struct bfd_link_info *link_info,
 400        struct bfd_link_order *link_order,
 401        arelent *reloc,
 402        bfd_byte *data,
 403        unsigned int *src_ptr,
 404        unsigned int *dst_ptr));
 405  int (*_bfd_coff_reloc16_estimate) PARAMS ((
 406        bfd *abfd,
 407        asection *input_section,
 408        arelent *r,
 409        unsigned int shrink,
 410        struct bfd_link_info *link_info));
 411  boolean (*_bfd_coff_sym_is_global) PARAMS ((
 412        bfd *abfd,
 413        struct internal_syment *));
 414  void (*_bfd_coff_compute_section_file_positions) PARAMS ((
 415        bfd *abfd));
 416  boolean (*_bfd_coff_relocate_section) PARAMS ((
 417        bfd *output_bfd,
 418        struct bfd_link_info *info,
 419        bfd *input_bfd,
 420        asection *input_section,
 421        bfd_byte *contents,
 422        struct internal_reloc *relocs,
 423        struct internal_syment *syms,
 424        asection **sections));
 425  reloc_howto_type *(*_bfd_coff_rtype_to_howto) PARAMS ((
 426        bfd *abfd,
 427        asection *sec,
 428        struct internal_reloc *rel,
 429        struct coff_link_hash_entry *h,
 430        struct internal_syment *sym,
 431        bfd_vma *addendp));
 432  boolean (*_bfd_coff_adjust_symndx) PARAMS ((
 433        bfd *obfd,
 434        struct bfd_link_info *info,
 435        bfd *ibfd,
 436        asection *sec,
 437        struct internal_reloc *reloc,
 438        boolean *adjustedp));
 439
 440 } bfd_coff_backend_data;
 441
 442 #define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
 443
 444 #define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
 445         ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
 446
 447 #define bfd_coff_swap_sym_in(a,e,i) \
 448         ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
 449
 450 #define bfd_coff_swap_lineno_in(a,e,i) \
 451         ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
 452
 453 #define bfd_coff_swap_reloc_out(abfd, i, o) \
 454         ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
 455
 456 #define bfd_coff_swap_lineno_out(abfd, i, o) \
 457         ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
 458
 459 #define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
 460         ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
 461
 462 #define bfd_coff_swap_sym_out(abfd, i,o) \
 463         ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
 464
 465 #define bfd_coff_swap_scnhdr_out(abfd, i,o) \
 466         ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
 467
 468 #define bfd_coff_swap_filehdr_out(abfd, i,o) \
 469         ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
 470
 471 #define bfd_coff_swap_aouthdr_out(abfd, i,o) \
 472         ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
 473
 474 #define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
 475 #define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
 476 #define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
 477 #define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
 478 #define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
 479 #define bfd_coff_relsz(abfd)  (coff_backend_info (abfd)->_bfd_relsz)
 480 #define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
 481 #define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
 482 #define bfd_coff_swap_filehdr_in(abfd, i,o) \
 483         ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
 484
 485 #define bfd_coff_swap_aouthdr_in(abfd, i,o) \
 486         ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
 487
 488 #define bfd_coff_swap_scnhdr_in(abfd, i,o) \
 489         ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
 490
 491 #define bfd_coff_swap_reloc_in(abfd, i, o) \
 492         ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_in) (abfd, i, o))
 493
 494 #define bfd_coff_bad_format_hook(abfd, filehdr) \
 495         ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
 496
 497 #define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
 498         ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
 499 #define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
 500         ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
 501
 502 #define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr, name)\
 503         ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr, name))
 504
 505 #define bfd_coff_make_section_hook(abfd, name)\
 506         ((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name))
 507
 508 #define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
 509         ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
 510
 511 #define bfd_coff_slurp_symbol_table(abfd)\
 512         ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
 513
 514 #define bfd_coff_symname_in_debug(abfd, sym)\
 515         ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
 516
 517 #define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
 518         ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
 519          (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
 520
 521 #define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
 522         ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
 523          (abfd, section, reloc, shrink, link_info))
 524
 525 #define bfd_coff_sym_is_global(abfd, sym)\
 526         ((coff_backend_info (abfd)->_bfd_coff_sym_is_global)\
 527          (abfd, sym))
 528
 529 #define bfd_coff_compute_section_file_positions(abfd)\
 530         ((coff_backend_info (abfd)->_bfd_coff_compute_section_file_positions)\
 531          (abfd))
 532
 533 #define bfd_coff_relocate_section(obfd,info,ibfd,o,con,rel,isyms,secs)\
 534         ((coff_backend_info (ibfd)->_bfd_coff_relocate_section)\
 535          (obfd, info, ibfd, o, con, rel, isyms, secs))
 536 #define bfd_coff_rtype_to_howto(abfd, sec, rel, h, sym, addendp)\
 537         ((coff_backend_info (abfd)->_bfd_coff_rtype_to_howto)\
 538          (abfd, sec, rel, h, sym, addendp))
 539 #define bfd_coff_adjust_symndx(obfd, info, ibfd, sec, rel, adjustedp)\
 540         ((coff_backend_info (abfd)->_bfd_coff_adjust_symndx)\
 541          (obfd, info, ibfd, sec, rel, adjustedp))
 542