bfd/targets.c

   1 /* Generic target-file-type support for the BFD library.
   2    Copyright 1990-2013 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22 #include "sysdep.h"
  23 #include "bfd.h"
  24 #include "libbfd.h"
  25 #include "fnmatch.h"
  26
  27 /*
  28    It's okay to see some:
  29 #if 0
  30    directives in this source file, as targets.c uses them to exclude
  31    certain BFD vectors.  This comment is specially formatted to catch
  32    users who grep for ^#if 0, so please keep it this way!
  33 */
  34
  35 /*
  36 SECTION
  37         Targets
  38
  39 DESCRIPTION
  40         Each port of BFD to a different machine requires the creation
  41         of a target back end. All the back end provides to the root
  42         part of BFD is a structure containing pointers to functions
  43         which perform certain low level operations on files. BFD
  44         translates the applications's requests through a pointer into
  45         calls to the back end routines.
  46
  47         When a file is opened with <<bfd_openr>>, its format and
  48         target are unknown. BFD uses various mechanisms to determine
  49         how to interpret the file. The operations performed are:
  50
  51         o Create a BFD by calling the internal routine
  52         <<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
  53         target string supplied to <<bfd_openr>> and the new BFD pointer.
  54
  55         o If a null target string was provided to <<bfd_find_target>>,
  56         look up the environment variable <<GNUTARGET>> and use
  57         that as the target string.
  58
  59         o If the target string is still <<NULL>>, or the target string is
  60         <<default>>, then use the first item in the target vector
  61         as the target type, and set <<target_defaulted>> in the BFD to
  62         cause <<bfd_check_format>> to loop through all the targets.
  63         @xref{bfd_target}.  @xref{Formats}.
  64
  65         o Otherwise, inspect the elements in the target vector
  66         one by one, until a match on target name is found. When found,
  67         use it.
  68
  69         o Otherwise return the error <<bfd_error_invalid_target>> to
  70         <<bfd_openr>>.
  71
  72         o <<bfd_openr>> attempts to open the file using
  73         <<bfd_open_file>>, and returns the BFD.
  74
  75         Once the BFD has been opened and the target selected, the file
  76         format may be determined. This is done by calling
  77         <<bfd_check_format>> on the BFD with a suggested format.
  78         If <<target_defaulted>> has been set, each possible target
  79         type is tried to see if it recognizes the specified format.
  80         <<bfd_check_format>> returns <<TRUE>> when the caller guesses right.
  81 @menu
  82 @* bfd_target::
  83 @end menu
  84 */
  85
  86 /*
  87
  88 INODE
  89         bfd_target,  , Targets, Targets
  90 DOCDD
  91 SUBSECTION
  92         bfd_target
  93
  94 DESCRIPTION
  95         This structure contains everything that BFD knows about a
  96         target. It includes things like its byte order, name, and which
  97         routines to call to do various operations.
  98
  99         Every BFD points to a target structure with its <<xvec>>
 100         member.
 101
 102         The macros below are used to dispatch to functions through the
 103         <<bfd_target>> vector. They are used in a number of macros further
 104         down in @file{bfd.h}, and are also used when calling various
 105         routines by hand inside the BFD implementation.  The @var{arglist}
 106         argument must be parenthesized; it contains all the arguments
 107         to the called function.
 108
 109         They make the documentation (more) unpleasant to read, so if
 110         someone wants to fix this and not break the above, please do.
 111
 112 .#define BFD_SEND(bfd, message, arglist) \
 113 .  ((*((bfd)->xvec->message)) arglist)
 114 .
 115 .#ifdef DEBUG_BFD_SEND
 116 .#undef BFD_SEND
 117 .#define BFD_SEND(bfd, message, arglist) \
 118 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
 119 .    ((*((bfd)->xvec->message)) arglist) : \
 120 .    (bfd_assert (__FILE__,__LINE__), NULL))
 121 .#endif
 122
 123         For operations which index on the BFD format:
 124
 125 .#define BFD_SEND_FMT(bfd, message, arglist) \
 126 .  (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
 127 .
 128 .#ifdef DEBUG_BFD_SEND
 129 .#undef BFD_SEND_FMT
 130 .#define BFD_SEND_FMT(bfd, message, arglist) \
 131 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
 132 .   (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
 133 .   (bfd_assert (__FILE__,__LINE__), NULL))
 134 .#endif
 135 .
 136         This is the structure which defines the type of BFD this is.  The
 137         <<xvec>> member of the struct <<bfd>> itself points here.  Each
 138         module that implements access to a different target under BFD,
 139         defines one of these.
 140
 141         FIXME, these names should be rationalised with the names of
 142         the entry points which call them. Too bad we can't have one
 143         macro to define them both!
 144
 145 .enum bfd_flavour
 146 .{
 147 .  bfd_target_unknown_flavour,
 148 .  bfd_target_aout_flavour,
 149 .  bfd_target_coff_flavour,
 150 .  bfd_target_ecoff_flavour,
 151 .  bfd_target_xcoff_flavour,
 152 .  bfd_target_elf_flavour,
 153 .  bfd_target_ieee_flavour,
 154 .  bfd_target_nlm_flavour,
 155 .  bfd_target_oasys_flavour,
 156 .  bfd_target_tekhex_flavour,
 157 .  bfd_target_srec_flavour,
 158 .  bfd_target_verilog_flavour,
 159 .  bfd_target_ihex_flavour,
 160 .  bfd_target_som_flavour,
 161 .  bfd_target_os9k_flavour,
 162 .  bfd_target_versados_flavour,
 163 .  bfd_target_msdos_flavour,
 164 .  bfd_target_ovax_flavour,
 165 .  bfd_target_evax_flavour,
 166 .  bfd_target_mmo_flavour,
 167 .  bfd_target_mach_o_flavour,
 168 .  bfd_target_pef_flavour,
 169 .  bfd_target_pef_xlib_flavour,
 170 .  bfd_target_sym_flavour
 171 .};
 172 .
 173 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
 174 .
 175 .{* Forward declaration.  *}
 176 .typedef struct bfd_link_info _bfd_link_info;
 177 .
 178 .{* Forward declaration.  *}
 179 .typedef struct flag_info flag_info;
 180 .
 181 .typedef struct bfd_target
 182 .{
 183 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
 184 .  char *name;
 185 .
 186 . {* The "flavour" of a back end is a general indication about
 187 .    the contents of a file.  *}
 188 .  enum bfd_flavour flavour;
 189 .
 190 .  {* The order of bytes within the data area of a file.  *}
 191 .  enum bfd_endian byteorder;
 192 .
 193 . {* The order of bytes within the header parts of a file.  *}
 194 .  enum bfd_endian header_byteorder;
 195 .
 196 .  {* A mask of all the flags which an executable may have set -
 197 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
 198 .  flagword object_flags;
 199 .
 200 . {* A mask of all the flags which a section may have set - from
 201 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
 202 .  flagword section_flags;
 203 .
 204 . {* The character normally found at the front of a symbol.
 205 .    (if any), perhaps `_'.  *}
 206 .  char symbol_leading_char;
 207 .
 208 . {* The pad character for file names within an archive header.  *}
 209 .  char ar_pad_char;
 210 .
 211 .  {* The maximum number of characters in an archive header.  *}
 212 .  unsigned char ar_max_namelen;
 213 .
 214 .  {* How well this target matches, used to select between various
 215 .     possible targets when more than one target matches.  *}
 216 .  unsigned char match_priority;
 217 .
 218 .  {* Entries for byte swapping for data. These are different from the
 219 .     other entry points, since they don't take a BFD as the first argument.
 220 .     Certain other handlers could do the same.  *}
 221 .  bfd_uint64_t   (*bfd_getx64) (const void *);
 222 .  bfd_int64_t    (*bfd_getx_signed_64) (const void *);
 223 .  void           (*bfd_putx64) (bfd_uint64_t, void *);
 224 .  bfd_vma        (*bfd_getx32) (const void *);
 225 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
 226 .  void           (*bfd_putx32) (bfd_vma, void *);
 227 .  bfd_vma        (*bfd_getx16) (const void *);
 228 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
 229 .  void           (*bfd_putx16) (bfd_vma, void *);
 230 .
 231 .  {* Byte swapping for the headers.  *}
 232 .  bfd_uint64_t   (*bfd_h_getx64) (const void *);
 233 .  bfd_int64_t    (*bfd_h_getx_signed_64) (const void *);
 234 .  void           (*bfd_h_putx64) (bfd_uint64_t, void *);
 235 .  bfd_vma        (*bfd_h_getx32) (const void *);
 236 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
 237 .  void           (*bfd_h_putx32) (bfd_vma, void *);
 238 .  bfd_vma        (*bfd_h_getx16) (const void *);
 239 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
 240 .  void           (*bfd_h_putx16) (bfd_vma, void *);
 241 .
 242 .  {* Format dependent routines: these are vectors of entry points
 243 .     within the target vector structure, one for each format to check.  *}
 244 .
 245 .  {* Check the format of a file being read.  Return a <<bfd_target *>> or zero.  *}
 246 .  const struct bfd_target *(*_bfd_check_format[bfd_type_end]) (bfd *);
 247 .
 248 .  {* Set the format of a file being written.  *}
 249 .  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
 250 .
 251 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
 252 .  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
 253 .
 254 The general target vector.  These vectors are initialized using the
 255 BFD_JUMP_TABLE macros.
 256 .
 257 .  {* Generic entry points.  *}
 258 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
 259 .  NAME##_close_and_cleanup, \
 260 .  NAME##_bfd_free_cached_info, \
 261 .  NAME##_new_section_hook, \
 262 .  NAME##_get_section_contents, \
 263 .  NAME##_get_section_contents_in_window
 264 .
 265 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
 266 .  bfd_boolean (*_close_and_cleanup) (bfd *);
 267 .  {* Ask the BFD to free all cached information.  *}
 268 .  bfd_boolean (*_bfd_free_cached_info) (bfd *);
 269 .  {* Called when a new section is created.  *}
 270 .  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
 271 .  {* Read the contents of a section.  *}
 272 .  bfd_boolean (*_bfd_get_section_contents)
 273 .    (bfd *, sec_ptr, void *, file_ptr, bfd_size_type);
 274 .  bfd_boolean (*_bfd_get_section_contents_in_window)
 275 .    (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type);
 276 .
 277 .  {* Entry points to copy private data.  *}
 278 .#define BFD_JUMP_TABLE_COPY(NAME) \
 279 .  NAME##_bfd_copy_private_bfd_data, \
 280 .  NAME##_bfd_merge_private_bfd_data, \
 281 .  _bfd_generic_init_private_section_data, \
 282 .  NAME##_bfd_copy_private_section_data, \
 283 .  NAME##_bfd_copy_private_symbol_data, \
 284 .  NAME##_bfd_copy_private_header_data, \
 285 .  NAME##_bfd_set_private_flags, \
 286 .  NAME##_bfd_print_private_bfd_data
 287 .
 288 .  {* Called to copy BFD general private data from one object file
 289 .     to another.  *}
 290 .  bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
 291 .  {* Called to merge BFD general private data from one object file
 292 .     to a common output file when linking.  *}
 293 .  bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, bfd *);
 294 .  {* Called to initialize BFD private section data from one object file
 295 .     to another.  *}
 296 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
 297 .  BFD_SEND (obfd, _bfd_init_private_section_data, (ibfd, isec, obfd, osec, link_info))
 298 .  bfd_boolean (*_bfd_init_private_section_data)
 299 .    (bfd *, sec_ptr, bfd *, sec_ptr, struct bfd_link_info *);
 300 .  {* Called to copy BFD private section data from one object file
 301 .     to another.  *}
 302 .  bfd_boolean (*_bfd_copy_private_section_data)
 303 .    (bfd *, sec_ptr, bfd *, sec_ptr);
 304 .  {* Called to copy BFD private symbol data from one symbol
 305 .     to another.  *}
 306 .  bfd_boolean (*_bfd_copy_private_symbol_data)
 307 .    (bfd *, asymbol *, bfd *, asymbol *);
 308 .  {* Called to copy BFD private header data from one object file
 309 .     to another.  *}
 310 .  bfd_boolean (*_bfd_copy_private_header_data)
 311 .    (bfd *, bfd *);
 312 .  {* Called to set private backend flags.  *}
 313 .  bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword);
 314 .
 315 .  {* Called to print private BFD data.  *}
 316 .  bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *);
 317 .
 318 .  {* Core file entry points.  *}
 319 .#define BFD_JUMP_TABLE_CORE(NAME) \
 320 .  NAME##_core_file_failing_command, \
 321 .  NAME##_core_file_failing_signal, \
 322 .  NAME##_core_file_matches_executable_p, \
 323 .  NAME##_core_file_pid
 324 .
 325 .  char *      (*_core_file_failing_command) (bfd *);
 326 .  int         (*_core_file_failing_signal) (bfd *);
 327 .  bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *);
 328 .  int         (*_core_file_pid) (bfd *);
 329 .
 330 .  {* Archive entry points.  *}
 331 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
 332 .  NAME##_slurp_armap, \
 333 .  NAME##_slurp_extended_name_table, \
 334 .  NAME##_construct_extended_name_table, \
 335 .  NAME##_truncate_arname, \
 336 .  NAME##_write_armap, \
 337 .  NAME##_read_ar_hdr, \
 338 .  NAME##_write_ar_hdr, \
 339 .  NAME##_openr_next_archived_file, \
 340 .  NAME##_get_elt_at_index, \
 341 .  NAME##_generic_stat_arch_elt, \
 342 .  NAME##_update_armap_timestamp
 343 .
 344 .  bfd_boolean (*_bfd_slurp_armap) (bfd *);
 345 .  bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *);
 346 .  bfd_boolean (*_bfd_construct_extended_name_table)
 347 .    (bfd *, char **, bfd_size_type *, const char **);
 348 .  void        (*_bfd_truncate_arname) (bfd *, const char *, char *);
 349 .  bfd_boolean (*write_armap)
 350 .    (bfd *, unsigned int, struct orl *, unsigned int, int);
 351 .  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
 352 .  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
 353 .  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
 354 .#define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
 355 .  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
 356 .  int         (*_bfd_stat_arch_elt) (bfd *, struct stat *);
 357 .  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
 358 .
 359 .  {* Entry points used for symbols.  *}
 360 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
 361 .  NAME##_get_symtab_upper_bound, \
 362 .  NAME##_canonicalize_symtab, \
 363 .  NAME##_make_empty_symbol, \
 364 .  NAME##_print_symbol, \
 365 .  NAME##_get_symbol_info, \
 366 .  NAME##_bfd_is_local_label_name, \
 367 .  NAME##_bfd_is_target_special_symbol, \
 368 .  NAME##_get_lineno, \
 369 .  NAME##_find_nearest_line, \
 370 .  _bfd_generic_find_nearest_line_discriminator, \
 371 .  _bfd_generic_find_line, \
 372 .  NAME##_find_inliner_info, \
 373 .  NAME##_bfd_make_debug_symbol, \
 374 .  NAME##_read_minisymbols, \
 375 .  NAME##_minisymbol_to_symbol
 376 .
 377 .  long        (*_bfd_get_symtab_upper_bound) (bfd *);
 378 .  long        (*_bfd_canonicalize_symtab)
 379 .    (bfd *, struct bfd_symbol **);
 380 .  struct bfd_symbol *
 381 .              (*_bfd_make_empty_symbol) (bfd *);
 382 .  void        (*_bfd_print_symbol)
 383 .    (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type);
 384 .#define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
 385 .  void        (*_bfd_get_symbol_info)
 386 .    (bfd *, struct bfd_symbol *, symbol_info *);
 387 .#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
 388 .  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
 389 .  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
 390 .  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
 391 .  bfd_boolean (*_bfd_find_nearest_line)
 392 .    (bfd *, struct bfd_section *, struct bfd_symbol **, bfd_vma,
 393 .     const char **, const char **, unsigned int *);
 394 .  bfd_boolean (*_bfd_find_nearest_line_discriminator)
 395 .    (bfd *, struct bfd_section *, struct bfd_symbol **, bfd_vma,
 396 .     const char **, const char **, unsigned int *, unsigned int *);
 397 .  bfd_boolean (*_bfd_find_line)
 398 .    (bfd *, struct bfd_symbol **, struct bfd_symbol *,
 399 .     const char **, unsigned int *);
 400 .  bfd_boolean (*_bfd_find_inliner_info)
 401 .    (bfd *, const char **, const char **, unsigned int *);
 402 . {* Back-door to allow format-aware applications to create debug symbols
 403 .    while using BFD for everything else.  Currently used by the assembler
 404 .    when creating COFF files.  *}
 405 .  asymbol *   (*_bfd_make_debug_symbol)
 406 .    (bfd *, void *, unsigned long size);
 407 .#define bfd_read_minisymbols(b, d, m, s) \
 408 .  BFD_SEND (b, _read_minisymbols, (b, d, m, s))
 409 .  long        (*_read_minisymbols)
 410 .    (bfd *, bfd_boolean, void **, unsigned int *);
 411 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
 412 .  BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
 413 .  asymbol *   (*_minisymbol_to_symbol)
 414 .    (bfd *, bfd_boolean, const void *, asymbol *);
 415 .
 416 .  {* Routines for relocs.  *}
 417 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
 418 .  NAME##_get_reloc_upper_bound, \
 419 .  NAME##_canonicalize_reloc, \
 420 .  NAME##_bfd_reloc_type_lookup, \
 421 .  NAME##_bfd_reloc_name_lookup
 422 .
 423 .  long        (*_get_reloc_upper_bound) (bfd *, sec_ptr);
 424 .  long        (*_bfd_canonicalize_reloc)
 425 .    (bfd *, sec_ptr, arelent **, struct bfd_symbol **);
 426 .  {* See documentation on reloc types.  *}
 427 .  reloc_howto_type *
 428 .              (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
 429 .  reloc_howto_type *
 430 .              (*reloc_name_lookup) (bfd *, const char *);
 431 .
 432 .
 433 .  {* Routines used when writing an object file.  *}
 434 .#define BFD_JUMP_TABLE_WRITE(NAME) \
 435 .  NAME##_set_arch_mach, \
 436 .  NAME##_set_section_contents
 437 .
 438 .  bfd_boolean (*_bfd_set_arch_mach)
 439 .    (bfd *, enum bfd_architecture, unsigned long);
 440 .  bfd_boolean (*_bfd_set_section_contents)
 441 .    (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type);
 442 .
 443 .  {* Routines used by the linker.  *}
 444 .#define BFD_JUMP_TABLE_LINK(NAME) \
 445 .  NAME##_sizeof_headers, \
 446 .  NAME##_bfd_get_relocated_section_contents, \
 447 .  NAME##_bfd_relax_section, \
 448 .  NAME##_bfd_link_hash_table_create, \
 449 .  NAME##_bfd_link_hash_table_free, \
 450 .  NAME##_bfd_link_add_symbols, \
 451 .  NAME##_bfd_link_just_syms, \
 452 .  NAME##_bfd_copy_link_hash_symbol_type, \
 453 .  NAME##_bfd_final_link, \
 454 .  NAME##_bfd_link_split_section, \
 455 .  NAME##_bfd_gc_sections, \
 456 .  NAME##_bfd_lookup_section_flags, \
 457 .  NAME##_bfd_merge_sections, \
 458 .  NAME##_bfd_is_group_section, \
 459 .  NAME##_bfd_discard_group, \
 460 .  NAME##_section_already_linked, \
 461 .  NAME##_bfd_define_common_symbol
 462 .
 463 .  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
 464 .  bfd_byte *  (*_bfd_get_relocated_section_contents)
 465 .    (bfd *, struct bfd_link_info *, struct bfd_link_order *,
 466 .     bfd_byte *, bfd_boolean, struct bfd_symbol **);
 467 .
 468 .  bfd_boolean (*_bfd_relax_section)
 469 .    (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
 470 .
 471 .  {* Create a hash table for the linker.  Different backends store
 472 .     different information in this table.  *}
 473 .  struct bfd_link_hash_table *
 474 .              (*_bfd_link_hash_table_create) (bfd *);
 475 .
 476 .  {* Release the memory associated with the linker hash table.  *}
 477 .  void        (*_bfd_link_hash_table_free) (struct bfd_link_hash_table *);
 478 .
 479 .  {* Add symbols from this object file into the hash table.  *}
 480 .  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
 481 .
 482 .  {* Indicate that we are only retrieving symbol values from this section.  *}
 483 .  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
 484 .
 485 .  {* Copy the symbol type of a linker hash table entry.  *}
 486 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
 487 .  BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
 488 .  void (*_bfd_copy_link_hash_symbol_type)
 489 .    (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
 490 .
 491 .  {* Do a link based on the link_order structures attached to each
 492 .     section of the BFD.  *}
 493 .  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
 494 .
 495 .  {* Should this section be split up into smaller pieces during linking.  *}
 496 .  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
 497 .
 498 .  {* Remove sections that are not referenced from the output.  *}
 499 .  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
 500 .
 501 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
 502 .  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
 503 .                                            struct flag_info *,
 504 .                                            asection *);
 505 .
 506 .  {* Attempt to merge SEC_MERGE sections.  *}
 507 .  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
 508 .
 509 .  {* Is this section a member of a group?  *}
 510 .  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
 511 .
 512 .  {* Discard members of a group.  *}
 513 .  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
 514 .
 515 .  {* Check if SEC has been already linked during a reloceatable or
 516 .     final link.  *}
 517 .  bfd_boolean (*_section_already_linked) (bfd *, asection *,
 518 .                                          struct bfd_link_info *);
 519 .
 520 .  {* Define a common symbol.  *}
 521 .  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
 522 .                                            struct bfd_link_hash_entry *);
 523 .
 524 .  {* Routines to handle dynamic symbols and relocs.  *}
 525 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
 526 .  NAME##_get_dynamic_symtab_upper_bound, \
 527 .  NAME##_canonicalize_dynamic_symtab, \
 528 .  NAME##_get_synthetic_symtab, \
 529 .  NAME##_get_dynamic_reloc_upper_bound, \
 530 .  NAME##_canonicalize_dynamic_reloc
 531 .
 532 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
 533 .  long        (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
 534 .  {* Read in the dynamic symbols.  *}
 535 .  long        (*_bfd_canonicalize_dynamic_symtab)
 536 .    (bfd *, struct bfd_symbol **);
 537 .  {* Create synthetized symbols.  *}
 538 .  long        (*_bfd_get_synthetic_symtab)
 539 .    (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **,
 540 .     struct bfd_symbol **);
 541 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
 542 .  long        (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
 543 .  {* Read in the dynamic relocs.  *}
 544 .  long        (*_bfd_canonicalize_dynamic_reloc)
 545 .    (bfd *, arelent **, struct bfd_symbol **);
 546 .
 547
 548 A pointer to an alternative bfd_target in case the current one is not
 549 satisfactory.  This can happen when the target cpu supports both big
 550 and little endian code, and target chosen by the linker has the wrong
 551 endianness.  The function open_output() in ld/ldlang.c uses this field
 552 to find an alternative output format that is suitable.
 553
 554 .  {* Opposite endian version of this target.  *}
 555 .  const struct bfd_target * alternative_target;
 556 .
 557
 558 .  {* Data for use by back-end routines, which isn't
 559 .     generic enough to belong in this structure.  *}
 560 .  const void *backend_data;
 561 .
 562 .} bfd_target;
 563 .
 564 */
 565
 566 /* All known xvecs (even those that don't compile on all systems).
 567    Alphabetized for easy reference.
 568    They are listed a second time below, since
 569    we can't intermix extern's and initializers.  */
 570 extern const bfd_target a_out_adobe_vec;
 571 extern const bfd_target aix5coff64_vec;
 572 extern const bfd_target aout0_big_vec;
 573 extern const bfd_target aout_arm_big_vec;
 574 extern const bfd_target aout_arm_little_vec;
 575 extern const bfd_target aout_mips_big_vec;
 576 extern const bfd_target aout_mips_little_vec;
 577 extern const bfd_target apollocoff_vec;
 578 extern const bfd_target arm_epoc_pe_big_vec;
 579 extern const bfd_target arm_epoc_pe_little_vec;
 580 extern const bfd_target arm_epoc_pei_big_vec;
 581 extern const bfd_target arm_epoc_pei_little_vec;
 582 extern const bfd_target arm_wince_pe_big_vec;
 583 extern const bfd_target arm_wince_pe_little_vec;
 584 extern const bfd_target arm_wince_pei_big_vec;
 585 extern const bfd_target arm_wince_pei_little_vec;
 586 extern const bfd_target armcoff_big_vec;
 587 extern const bfd_target armcoff_little_vec;
 588 extern const bfd_target armnetbsd_vec;
 589 extern const bfd_target armpe_big_vec;
 590 extern const bfd_target armpe_little_vec;
 591 extern const bfd_target armpei_big_vec;
 592 extern const bfd_target armpei_little_vec;
 593 extern const bfd_target b_out_vec_big_host;
 594 extern const bfd_target b_out_vec_little_host;
 595 extern const bfd_target bfd_pei_ia64_vec;
 596 extern const bfd_target bfd_elf32_avr_vec;
 597 extern const bfd_target bfd_elf32_bfin_vec;
 598 extern const bfd_target bfd_elf32_bfinfdpic_vec;
 599 extern const bfd_target bfd_elf32_big_generic_vec;
 600 extern const bfd_target bfd_elf32_bigarc_vec;
 601 extern const bfd_target bfd_elf32_bigarm_vec;
 602 extern const bfd_target bfd_elf32_bigarm_nacl_vec;
 603 extern const bfd_target bfd_elf32_bigarm_symbian_vec;
 604 extern const bfd_target bfd_elf32_bigarm_vxworks_vec;
 605 extern const bfd_target bfd_elf32_bigmips_vec;
 606 extern const bfd_target bfd_elf32_bigmips_vxworks_vec;
 607 extern const bfd_target bfd_elf32_bigmoxie_vec;
 608 extern const bfd_target bfd_elf32_bignios2_vec;
 609 extern const bfd_target bfd_elf32_cr16_vec;
 610 extern const bfd_target bfd_elf32_cr16c_vec;
 611 extern const bfd_target bfd_elf32_cris_vec;
 612 extern const bfd_target bfd_elf32_crx_vec;
 613 extern const bfd_target bfd_elf32_d10v_vec;
 614 extern const bfd_target bfd_elf32_d30v_vec;
 615 extern const bfd_target bfd_elf32_dlx_big_vec;
 616 extern const bfd_target bfd_elf32_epiphany_vec;
 617 extern const bfd_target bfd_elf32_fr30_vec;
 618 extern const bfd_target bfd_elf32_frv_vec;
 619 extern const bfd_target bfd_elf32_frvfdpic_vec;
 620 extern const bfd_target bfd_elf32_h8300_vec;
 621 extern const bfd_target bfd_elf32_hppa_linux_vec;
 622 extern const bfd_target bfd_elf32_hppa_nbsd_vec;
 623 extern const bfd_target bfd_elf32_hppa_vec;
 624 extern const bfd_target bfd_elf32_i370_vec;
 625 extern const bfd_target bfd_elf32_i386_freebsd_vec;
 626 extern const bfd_target bfd_elf32_i386_nacl_vec;
 627 extern const bfd_target bfd_elf32_i386_sol2_vec;
 628 extern const bfd_target bfd_elf32_i386_vxworks_vec;
 629 extern const bfd_target bfd_elf32_i386_vec;
 630 extern const bfd_target bfd_elf32_i860_little_vec;
 631 extern const bfd_target bfd_elf32_i860_vec;
 632 extern const bfd_target bfd_elf32_i960_vec;
 633 extern const bfd_target bfd_elf32_ia64_big_vec;
 634 extern const bfd_target bfd_elf32_ia64_hpux_big_vec;
 635 extern const bfd_target bfd_elf32_ip2k_vec;
 636 extern const bfd_target bfd_elf32_iq2000_vec;
 637 extern const bfd_target bfd_elf32_lm32_vec;
 638 extern const bfd_target bfd_elf32_lm32fdpic_vec;
 639 extern const bfd_target bfd_elf32_little_generic_vec;
 640 extern const bfd_target bfd_elf32_littlearc_vec;
 641 extern const bfd_target bfd_elf32_littlearm_vec;
 642 extern const bfd_target bfd_elf32_littlearm_nacl_vec;
 643 extern const bfd_target bfd_elf32_littlearm_symbian_vec;
 644 extern const bfd_target bfd_elf32_littlearm_vxworks_vec;
 645 extern const bfd_target bfd_elf32_littlemips_vec;
 646 extern const bfd_target bfd_elf32_littlemips_vxworks_vec;
 647 extern const bfd_target bfd_elf32_littlemoxie_vec;
 648 extern const bfd_target bfd_elf32_littlenios2_vec;
 649 extern const bfd_target bfd_elf32_m32c_vec;
 650 extern const bfd_target bfd_elf32_m32r_vec;
 651 extern const bfd_target bfd_elf32_m32rle_vec;
 652 extern const bfd_target bfd_elf32_m32rlin_vec;
 653 extern const bfd_target bfd_elf32_m32rlelin_vec;
 654 extern const bfd_target bfd_elf32_m68hc11_vec;
 655 extern const bfd_target bfd_elf32_m68hc12_vec;
 656 extern const bfd_target bfd_elf32_m68k_vec;
 657 extern const bfd_target bfd_elf32_m88k_vec;
 658 extern const bfd_target bfd_elf32_mcore_big_vec;
 659 extern const bfd_target bfd_elf32_mcore_little_vec;
 660 extern const bfd_target bfd_elf32_mep_vec;
 661 extern const bfd_target bfd_elf32_mep_little_vec;
 662 extern const bfd_target bfd_elf32_metag_vec;
 663 extern const bfd_target bfd_elf32_microblazeel_vec;
 664 extern const bfd_target bfd_elf32_microblaze_vec;
 665 extern const bfd_target bfd_elf32_mn10200_vec;
 666 extern const bfd_target bfd_elf32_mn10300_vec;
 667 extern const bfd_target bfd_elf32_mt_vec;
 668 extern const bfd_target bfd_elf32_msp430_vec;
 669 extern const bfd_target bfd_elf32_msp430_ti_vec;
 670 extern const bfd_target bfd_elf32_nbigmips_vec;
 671 extern const bfd_target bfd_elf32_nlittlemips_vec;
 672 extern const bfd_target bfd_elf32_ntradbigmips_vec;
 673 extern const bfd_target bfd_elf32_ntradlittlemips_vec;
 674 extern const bfd_target bfd_elf32_ntradbigmips_freebsd_vec;
 675 extern const bfd_target bfd_elf32_ntradlittlemips_freebsd_vec;
 676 extern const bfd_target bfd_elf32_nds32be_vec;
 677 extern const bfd_target bfd_elf32_nds32le_vec;
 678 extern const bfd_target bfd_elf32_nds32belin_vec;
 679 extern const bfd_target bfd_elf32_nds32lelin_vec;
 680 extern const bfd_target bfd_elf32_openrisc_vec;
 681 extern const bfd_target bfd_elf32_or32_big_vec;
 682 extern const bfd_target bfd_elf32_pj_vec;
 683 extern const bfd_target bfd_elf32_pjl_vec;
 684 extern const bfd_target bfd_elf32_powerpc_vec;
 685 extern const bfd_target bfd_elf32_powerpcle_vec;
 686 extern const bfd_target bfd_elf32_powerpc_freebsd_vec;
 687 extern const bfd_target bfd_elf32_powerpc_vxworks_vec;
 688 extern const bfd_target bfd_elf32_rl78_vec;
 689 extern const bfd_target bfd_elf32_rx_le_vec;
 690 extern const bfd_target bfd_elf32_rx_be_vec;
 691 extern const bfd_target bfd_elf32_rx_be_ns_vec;
 692 extern const bfd_target bfd_elf32_s390_vec;
 693 extern const bfd_target bfd_elf32_bigscore_vec;
 694 extern const bfd_target bfd_elf32_littlescore_vec;
 695 extern const bfd_target bfd_elf32_sh64_vec;
 696 extern const bfd_target bfd_elf32_sh64l_vec;
 697 extern const bfd_target bfd_elf32_sh64lin_vec;
 698 extern const bfd_target bfd_elf32_sh64blin_vec;
 699 extern const bfd_target bfd_elf32_sh64lnbsd_vec;
 700 extern const bfd_target bfd_elf32_sh64nbsd_vec;
 701 extern const bfd_target bfd_elf32_sh_vec;
 702 extern const bfd_target bfd_elf32_shbfd_vec;
 703 extern const bfd_target bfd_elf32_shblin_vec;
 704 extern const bfd_target bfd_elf32_shfd_vec;
 705 extern const bfd_target bfd_elf32_shl_vec;
 706 extern const bfd_target bfd_elf32_shl_symbian_vec;
 707 extern const bfd_target bfd_elf32_shlin_vec;
 708 extern const bfd_target bfd_elf32_shlnbsd_vec;
 709 extern const bfd_target bfd_elf32_shlvxworks_vec;
 710 extern const bfd_target bfd_elf32_shnbsd_vec;
 711 extern const bfd_target bfd_elf32_shvxworks_vec;
 712 extern const bfd_target bfd_elf32_sparc_vec;
 713 extern const bfd_target bfd_elf32_sparc_sol2_vec;
 714 extern const bfd_target bfd_elf32_sparc_vxworks_vec;
 715 extern const bfd_target bfd_elf32_spu_vec;
 716 extern const bfd_target bfd_elf32_tic6x_be_vec;
 717 extern const bfd_target bfd_elf32_tic6x_le_vec;
 718 extern const bfd_target bfd_elf32_tic6x_elf_be_vec;
 719 extern const bfd_target bfd_elf32_tic6x_elf_le_vec;
 720 extern const bfd_target bfd_elf32_tic6x_linux_be_vec;
 721 extern const bfd_target bfd_elf32_tic6x_linux_le_vec;
 722 extern const bfd_target bfd_elf32_tilegx_be_vec;
 723 extern const bfd_target bfd_elf32_tilegx_le_vec;
 724 extern const bfd_target bfd_elf32_tilepro_vec;
 725 extern const bfd_target bfd_elf32_tradbigmips_vec;
 726 extern const bfd_target bfd_elf32_tradlittlemips_vec;
 727 extern const bfd_target bfd_elf32_tradbigmips_freebsd_vec;
 728 extern const bfd_target bfd_elf32_tradlittlemips_freebsd_vec;
 729 extern const bfd_target bfd_elf32_us_cris_vec;
 730 extern const bfd_target bfd_elf32_v850_vec;
 731 extern const bfd_target bfd_elf32_v850_rh850_vec;
 732 extern const bfd_target bfd_elf32_vax_vec;
 733 extern const bfd_target bfd_elf32_xc16x_vec;
 734 extern const bfd_target bfd_elf32_xgate_vec;
 735 extern const bfd_target bfd_elf32_xstormy16_vec;
 736 extern const bfd_target bfd_elf32_xtensa_be_vec;
 737 extern const bfd_target bfd_elf32_xtensa_le_vec;
 738 extern const bfd_target bfd_elf64_alpha_freebsd_vec;
 739 extern const bfd_target bfd_elf64_alpha_vec;
 740 extern const bfd_target bfd_elf64_big_generic_vec;
 741 extern const bfd_target bfd_elf64_bigmips_vec;
 742 extern const bfd_target bfd_elf64_bigaarch64_vec;
 743 extern const bfd_target bfd_elf32_bigaarch64_vec;
 744 extern const bfd_target bfd_elf64_hppa_linux_vec;
 745 extern const bfd_target bfd_elf64_hppa_vec;
 746 extern const bfd_target bfd_elf64_ia64_big_vec;
 747 extern const bfd_target bfd_elf64_ia64_hpux_big_vec;
 748 extern const bfd_target bfd_elf64_ia64_little_vec;
 749 extern const bfd_target bfd_elf64_ia64_vms_vec;
 750 extern const bfd_target bfd_elf64_little_generic_vec;
 751 extern const bfd_target bfd_elf64_littlemips_vec;
 752 extern const bfd_target bfd_elf64_littleaarch64_vec;
 753 extern const bfd_target bfd_elf32_littleaarch64_vec;
 754 extern const bfd_target bfd_elf64_mmix_vec;
 755 extern const bfd_target bfd_elf64_powerpc_vec;
 756 extern const bfd_target bfd_elf64_powerpcle_vec;
 757 extern const bfd_target bfd_elf64_powerpc_freebsd_vec;
 758 extern const bfd_target bfd_elf64_s390_vec;
 759 extern const bfd_target bfd_elf64_sh64_vec;
 760 extern const bfd_target bfd_elf64_sh64l_vec;
 761 extern const bfd_target bfd_elf64_sh64lin_vec;
 762 extern const bfd_target bfd_elf64_sh64blin_vec;
 763 extern const bfd_target bfd_elf64_sh64lnbsd_vec;
 764 extern const bfd_target bfd_elf64_sh64nbsd_vec;
 765 extern const bfd_target bfd_elf64_sparc_vec;
 766 extern const bfd_target bfd_elf64_sparc_freebsd_vec;
 767 extern const bfd_target bfd_elf64_sparc_sol2_vec;
 768 extern const bfd_target bfd_elf64_tilegx_be_vec;
 769 extern const bfd_target bfd_elf64_tilegx_le_vec;
 770 extern const bfd_target bfd_elf64_tradbigmips_vec;
 771 extern const bfd_target bfd_elf64_tradlittlemips_vec;
 772 extern const bfd_target bfd_elf64_tradbigmips_freebsd_vec;
 773 extern const bfd_target bfd_elf64_tradlittlemips_freebsd_vec;
 774 extern const bfd_target bfd_elf64_x86_64_freebsd_vec;
 775 extern const bfd_target bfd_elf64_x86_64_nacl_vec;
 776 extern const bfd_target bfd_elf64_x86_64_sol2_vec;
 777 extern const bfd_target bfd_elf64_x86_64_vec;
 778 extern const bfd_target bfd_elf32_x86_64_nacl_vec;
 779 extern const bfd_target bfd_elf32_x86_64_vec;
 780 extern const bfd_target bfd_elf64_l1om_freebsd_vec;
 781 extern const bfd_target bfd_elf64_l1om_vec;
 782 extern const bfd_target bfd_elf64_k1om_freebsd_vec;
 783 extern const bfd_target bfd_elf64_k1om_vec;
 784 extern const bfd_target bfd_mmo_vec;
 785 extern const bfd_target bfd_powerpc_pe_vec;
 786 extern const bfd_target bfd_powerpc_pei_vec;
 787 extern const bfd_target bfd_powerpcle_pe_vec;
 788 extern const bfd_target bfd_powerpcle_pei_vec;
 789 extern const bfd_target cris_aout_vec;
 790 extern const bfd_target demo_64_vec;
 791 extern const bfd_target ecoff_big_vec;
 792 extern const bfd_target ecoff_biglittle_vec;
 793 extern const bfd_target ecoff_little_vec;
 794 extern const bfd_target ecoffalpha_little_vec;
 795 extern const bfd_target go32coff_vec;
 796 extern const bfd_target go32stubbedcoff_vec;
 797 extern const bfd_target h8300coff_vec;
 798 extern const bfd_target h8500coff_vec;
 799 extern const bfd_target host_aout_vec;
 800 extern const bfd_target hp300bsd_vec;
 801 extern const bfd_target hp300hpux_vec;
 802 extern const bfd_target i386aout_vec;
 803 extern const bfd_target i386bsd_vec;
 804 extern const bfd_target i386coff_vec;
 805 extern const bfd_target i386dynix_vec;
 806 extern const bfd_target i386freebsd_vec;
 807 extern const bfd_target i386linux_vec;
 808 extern const bfd_target i386lynx_aout_vec;
 809 extern const bfd_target i386lynx_coff_vec;
 810 extern const bfd_target i386mach3_vec;
 811 extern const bfd_target i386msdos_vec;
 812 extern const bfd_target i386netbsd_vec;
 813 extern const bfd_target i386os9k_vec;
 814 extern const bfd_target i386pe_vec;
 815 extern const bfd_target i386pei_vec;
 816 extern const bfd_target i860coff_vec;
 817 extern const bfd_target icoff_big_vec;
 818 extern const bfd_target icoff_little_vec;
 819 extern const bfd_target ieee_vec;
 820 extern const bfd_target m68k4knetbsd_vec;
 821 extern const bfd_target m68kaux_coff_vec;
 822 extern const bfd_target m68kcoff_vec;
 823 extern const bfd_target m68kcoffun_vec;
 824 extern const bfd_target m68klinux_vec;
 825 extern const bfd_target m68knetbsd_vec;
 826 extern const bfd_target m68ksysvcoff_vec;
 827 extern const bfd_target m88kbcs_vec;
 828 extern const bfd_target m88kmach3_vec;
 829 extern const bfd_target m88kopenbsd_vec;
 830 extern const bfd_target mach_o_be_vec;
 831 extern const bfd_target mach_o_le_vec;
 832 extern const bfd_target mach_o_fat_vec;
 833 extern const bfd_target mach_o_i386_vec;
 834 extern const bfd_target mach_o_x86_64_vec;
 835 extern const bfd_target mcore_pe_big_vec;
 836 extern const bfd_target mcore_pe_little_vec;
 837 extern const bfd_target mcore_pei_big_vec;
 838 extern const bfd_target mcore_pei_little_vec;
 839 extern const bfd_target mipslpe_vec;
 840 extern const bfd_target mipslpei_vec;
 841 extern const bfd_target newsos3_vec;
 842 extern const bfd_target nlm32_alpha_vec;
 843 extern const bfd_target nlm32_i386_vec;
 844 extern const bfd_target nlm32_powerpc_vec;
 845 extern const bfd_target nlm32_sparc_vec;
 846 extern const bfd_target oasys_vec;
 847 extern const bfd_target or32coff_big_vec;
 848 extern const bfd_target pc532machaout_vec;
 849 extern const bfd_target pc532netbsd_vec;
 850 extern const bfd_target pdp11_aout_vec;
 851 extern const bfd_target pef_vec;
 852 extern const bfd_target pef_xlib_vec;
 853 extern const bfd_target plugin_vec;
 854 extern const bfd_target pmac_xcoff_vec;
 855 extern const bfd_target ppcboot_vec;
 856 extern const bfd_target riscix_vec;
 857 extern const bfd_target rs6000coff64_vec;
 858 extern const bfd_target rs6000coff_vec;
 859 extern const bfd_target shcoff_small_vec;
 860 extern const bfd_target shcoff_vec;
 861 extern const bfd_target shlcoff_small_vec;
 862 extern const bfd_target shlcoff_vec;
 863 extern const bfd_target shlpe_vec;
 864 extern const bfd_target shlpei_vec;
 865 extern const bfd_target som_vec;
 866 extern const bfd_target sparccoff_vec;
 867 extern const bfd_target sparcle_aout_vec;
 868 extern const bfd_target sparclinux_vec;
 869 extern const bfd_target sparclynx_aout_vec;
 870 extern const bfd_target sparclynx_coff_vec;
 871 extern const bfd_target sparcnetbsd_vec;
 872 extern const bfd_target sunos_big_vec;
 873 extern const bfd_target sym_vec;
 874 extern const bfd_target tic30_aout_vec;
 875 extern const bfd_target tic30_coff_vec;
 876 extern const bfd_target tic4x_coff0_beh_vec;
 877 extern const bfd_target tic4x_coff0_vec;
 878 extern const bfd_target tic4x_coff1_beh_vec;
 879 extern const bfd_target tic4x_coff1_vec;
 880 extern const bfd_target tic4x_coff2_beh_vec;
 881 extern const bfd_target tic4x_coff2_vec;
 882 extern const bfd_target tic54x_coff0_beh_vec;
 883 extern const bfd_target tic54x_coff0_vec;
 884 extern const bfd_target tic54x_coff1_beh_vec;
 885 extern const bfd_target tic54x_coff1_vec;
 886 extern const bfd_target tic54x_coff2_beh_vec;
 887 extern const bfd_target tic54x_coff2_vec;
 888 extern const bfd_target tic80coff_vec;
 889 extern const bfd_target vaxbsd_vec;
 890 extern const bfd_target vaxnetbsd_vec;
 891 extern const bfd_target vax1knetbsd_vec;
 892 extern const bfd_target versados_vec;
 893 extern const bfd_target vms_alpha_vec;
 894 extern const bfd_target vms_lib_txt_vec;
 895 extern const bfd_target w65_vec;
 896 extern const bfd_target we32kcoff_vec;
 897 extern const bfd_target x86_64pe_vec;
 898 extern const bfd_target x86_64pei_vec;
 899 extern const bfd_target x86_64coff_vec;
 900 extern const bfd_target z80coff_vec;
 901 extern const bfd_target z8kcoff_vec;
 902
 903 /* These are always included.  */
 904 extern const bfd_target srec_vec;
 905 extern const bfd_target verilog_vec;
 906 extern const bfd_target symbolsrec_vec;
 907 extern const bfd_target tekhex_vec;
 908 extern const bfd_target binary_vec;
 909 extern const bfd_target ihex_vec;
 910
 911 /* All of the xvecs for core files.  */
 912 extern const bfd_target aix386_core_vec;
 913 extern const bfd_target cisco_core_big_vec;
 914 extern const bfd_target cisco_core_little_vec;
 915 extern const bfd_target hppabsd_core_vec;
 916 extern const bfd_target hpux_core_vec;
 917 extern const bfd_target irix_core_vec;
 918 extern const bfd_target netbsd_core_vec;
 919 extern const bfd_target osf_core_vec;
 920 extern const bfd_target ptrace_core_vec;
 921 extern const bfd_target sco5_core_vec;
 922 extern const bfd_target trad_core_vec;
 923
 924 extern const bfd_target bfd_elf32_am33lin_vec;
 925 static const bfd_target * const _bfd_target_vector[] =
 926 {
 927 #ifdef SELECT_VECS
 928
 929         SELECT_VECS,
 930
 931 #else /* not SELECT_VECS */
 932
 933 #ifdef DEFAULT_VECTOR
 934         &DEFAULT_VECTOR,
 935 #endif
 936         /* This list is alphabetized to make it easy to compare
 937            with other vector lists -- the decls above and
 938            the case statement in configure.in.
 939            Vectors that don't compile on all systems, or aren't finished,
 940            should have an entry here with #if 0 around it, to show that
 941            it wasn't omitted by mistake.  */
 942         &a_out_adobe_vec,
 943 #ifdef BFD64
 944         &aix5coff64_vec,
 945 #endif
 946         &aout0_big_vec,
 947 #if 0
 948         /* We have no way of distinguishing these from other a.out variants.  */
 949         &aout_arm_big_vec,
 950         &aout_arm_little_vec,
 951         /* No one seems to use this.  */
 952         &aout_mips_big_vec,
 953 #endif
 954         &aout_mips_little_vec,
 955 #if 0
 956         &apollocoff_vec,
 957 #endif
 958         &arm_epoc_pe_big_vec,
 959         &arm_epoc_pe_little_vec,
 960         &arm_epoc_pei_big_vec,
 961         &arm_epoc_pei_little_vec,
 962         &arm_wince_pe_big_vec,
 963         &arm_wince_pe_little_vec,
 964         &arm_wince_pei_big_vec,
 965         &arm_wince_pei_little_vec,
 966         &armcoff_big_vec,
 967         &armcoff_little_vec,
 968         &armnetbsd_vec,
 969         &armpe_big_vec,
 970         &armpe_little_vec,
 971         &armpei_big_vec,
 972         &armpei_little_vec,
 973         &b_out_vec_big_host,
 974         &b_out_vec_little_host,
 975 #ifdef BFD64
 976         &bfd_pei_ia64_vec,
 977 #endif
 978         &bfd_elf32_avr_vec,
 979         &bfd_elf32_bfin_vec,
 980         &bfd_elf32_bfinfdpic_vec,
 981
 982         /* This, and other vectors, may not be used in any *.mt configuration.
 983            But that does not mean they are unnecessary.  If configured with
 984            --enable-targets=all, objdump or gdb should be able to examine
 985            the file even if we don't recognize the machine type.  */
 986         &bfd_elf32_big_generic_vec,
 987         &bfd_elf32_bigarc_vec,
 988         &bfd_elf32_bigarm_vec,
 989         &bfd_elf32_bigarm_symbian_vec,
 990         &bfd_elf32_bigarm_vxworks_vec,
 991 #ifdef BFD64
 992         &bfd_elf32_bigmips_vec,
 993         &bfd_elf32_bigmips_vxworks_vec,
 994 #endif
 995         &bfd_elf32_bigmoxie_vec,
 996         &bfd_elf32_bignios2_vec,
 997         &bfd_elf32_cr16_vec,
 998         &bfd_elf32_cr16c_vec,
 999         &bfd_elf32_cris_vec,
1000         &bfd_elf32_crx_vec,
1001         &bfd_elf32_d10v_vec,
1002         &bfd_elf32_d30v_vec,
1003         &bfd_elf32_dlx_big_vec,
1004         &bfd_elf32_epiphany_vec,
1005         &bfd_elf32_fr30_vec,
1006         &bfd_elf32_frv_vec,
1007         &bfd_elf32_frvfdpic_vec,
1008         &bfd_elf32_h8300_vec,
1009         &bfd_elf32_hppa_linux_vec,
1010         &bfd_elf32_hppa_nbsd_vec,
1011         &bfd_elf32_hppa_vec,
1012         &bfd_elf32_i370_vec,
1013         &bfd_elf32_i386_freebsd_vec,
1014         &bfd_elf32_i386_nacl_vec,
1015         &bfd_elf32_i386_sol2_vec,
1016         &bfd_elf32_i386_vxworks_vec,
1017         &bfd_elf32_i386_vec,
1018         &bfd_elf32_i860_little_vec,
1019         &bfd_elf32_i860_vec,
1020         &bfd_elf32_i960_vec,
1021 #if 0
1022         &bfd_elf32_ia64_big_vec,
1023 #endif
1024 #ifdef BFD64
1025         &bfd_elf32_ia64_hpux_big_vec,
1026 #endif
1027         &bfd_elf32_ip2k_vec,
1028         &bfd_elf32_iq2000_vec,
1029         &bfd_elf32_lm32_vec,
1030         &bfd_elf32_little_generic_vec,
1031         &bfd_elf32_littlearc_vec,
1032         &bfd_elf32_littlearm_vec,
1033         &bfd_elf32_littlearm_symbian_vec,
1034         &bfd_elf32_littlearm_vxworks_vec,
1035 #ifdef BFD64
1036         &bfd_elf32_littlemips_vec,
1037         &bfd_elf32_littlemips_vxworks_vec,
1038 #endif
1039         &bfd_elf32_littlemoxie_vec,
1040         &bfd_elf32_littlenios2_vec,
1041         &bfd_elf32_m32c_vec,
1042         &bfd_elf32_m32r_vec,
1043         &bfd_elf32_m32rle_vec,
1044         &bfd_elf32_m32rlin_vec,
1045         &bfd_elf32_m32rlelin_vec,
1046         &bfd_elf32_m68hc11_vec,
1047         &bfd_elf32_m68hc12_vec,
1048         &bfd_elf32_m68k_vec,
1049         &bfd_elf32_m88k_vec,
1050         &bfd_elf32_mcore_big_vec,
1051         &bfd_elf32_mcore_little_vec,
1052         &bfd_elf32_mep_vec,
1053         &bfd_elf32_metag_vec,
1054         &bfd_elf32_microblaze_vec,
1055         &bfd_elf32_mn10200_vec,
1056         &bfd_elf32_mn10300_vec,
1057         &bfd_elf32_mt_vec,
1058         &bfd_elf32_msp430_vec,
1059         &bfd_elf32_msp430_ti_vec,
1060 #ifdef BFD64
1061         &bfd_elf32_nbigmips_vec,
1062         &bfd_elf32_nlittlemips_vec,
1063         &bfd_elf32_ntradbigmips_vec,
1064         &bfd_elf32_ntradlittlemips_vec,
1065         &bfd_elf32_ntradbigmips_freebsd_vec,
1066         &bfd_elf32_ntradlittlemips_freebsd_vec,
1067 #endif
1068         &bfd_elf32_nds32be_vec,
1069         &bfd_elf32_nds32le_vec,
1070         &bfd_elf32_nds32belin_vec,
1071         &bfd_elf32_nds32lelin_vec,
1072         &bfd_elf32_openrisc_vec,
1073         &bfd_elf32_or32_big_vec,
1074         &bfd_elf32_pj_vec,
1075         &bfd_elf32_pjl_vec,
1076         &bfd_elf32_powerpc_vec,
1077         &bfd_elf32_powerpc_vxworks_vec,
1078         &bfd_elf32_powerpcle_vec,
1079         &bfd_elf32_powerpc_freebsd_vec,
1080         &bfd_elf32_rl78_vec,
1081         &bfd_elf32_rx_be_vec,
1082         &bfd_elf32_rx_be_ns_vec,
1083         &bfd_elf32_rx_le_vec,
1084         &bfd_elf32_s390_vec,
1085 #ifdef BFD64
1086         &bfd_elf32_bigscore_vec,
1087         &bfd_elf32_littlescore_vec,
1088 #endif
1089         &bfd_elf32_sh_vec,
1090         &bfd_elf32_shbfd_vec,
1091         &bfd_elf32_shblin_vec,
1092         &bfd_elf32_shfd_vec,
1093         &bfd_elf32_shl_vec,
1094         &bfd_elf32_shl_symbian_vec,
1095         &bfd_elf32_shlin_vec,
1096         &bfd_elf32_shlnbsd_vec,
1097         &bfd_elf32_shlvxworks_vec,
1098         &bfd_elf32_shnbsd_vec,
1099         &bfd_elf32_shvxworks_vec,
1100 #ifdef BFD64
1101         &bfd_elf32_sh64_vec,
1102         &bfd_elf32_sh64l_vec,
1103         &bfd_elf32_sh64lnbsd_vec,
1104         &bfd_elf32_sh64nbsd_vec,
1105         &bfd_elf32_sh64lin_vec,
1106         &bfd_elf32_sh64blin_vec,
1107 #endif
1108         &bfd_elf32_sparc_vec,
1109         &bfd_elf32_sparc_sol2_vec,
1110         &bfd_elf32_sparc_vxworks_vec,
1111         &bfd_elf32_spu_vec,
1112         &bfd_elf32_tic6x_be_vec,
1113         &bfd_elf32_tic6x_le_vec,
1114         &bfd_elf32_tilegx_be_vec,
1115         &bfd_elf32_tilegx_le_vec,
1116         &bfd_elf32_tilepro_vec,
1117 #ifdef BFD64
1118         &bfd_elf32_tradbigmips_vec,
1119         &bfd_elf32_tradlittlemips_vec,
1120         &bfd_elf32_tradbigmips_freebsd_vec,
1121         &bfd_elf32_tradlittlemips_freebsd_vec,
1122 #endif
1123         &bfd_elf32_us_cris_vec,
1124         &bfd_elf32_v850_vec,
1125         &bfd_elf32_v850_rh850_vec,
1126         &bfd_elf32_vax_vec,
1127         &bfd_elf32_xc16x_vec,
1128         &bfd_elf32_xgate_vec,
1129         &bfd_elf32_xstormy16_vec,
1130         &bfd_elf32_xtensa_be_vec,
1131         &bfd_elf32_xtensa_le_vec,
1132 #ifdef BFD64
1133         &bfd_elf64_alpha_freebsd_vec,
1134         &bfd_elf64_alpha_vec,
1135         &bfd_elf64_big_generic_vec,
1136         &bfd_elf64_bigmips_vec,
1137         &bfd_elf64_bigaarch64_vec,
1138         &bfd_elf32_bigaarch64_vec,
1139         &bfd_elf64_hppa_linux_vec,
1140         &bfd_elf64_hppa_vec,
1141         &bfd_elf64_ia64_big_vec,
1142         &bfd_elf64_ia64_hpux_big_vec,
1143         &bfd_elf64_ia64_little_vec,
1144         &bfd_elf64_ia64_vms_vec,
1145         &bfd_elf64_little_generic_vec,
1146         &bfd_elf64_littlemips_vec,
1147         &bfd_elf64_littleaarch64_vec,
1148         &bfd_elf32_littleaarch64_vec,
1149         &bfd_elf64_mmix_vec,
1150         &bfd_elf64_powerpc_vec,
1151         &bfd_elf64_powerpcle_vec,
1152         &bfd_elf64_powerpc_freebsd_vec,
1153         &bfd_elf64_s390_vec,
1154         &bfd_elf64_sh64_vec,
1155         &bfd_elf64_sh64l_vec,
1156         &bfd_elf64_sh64lnbsd_vec,
1157         &bfd_elf64_sh64nbsd_vec,
1158         &bfd_elf64_sh64lin_vec,
1159         &bfd_elf64_sh64blin_vec,
1160         &bfd_elf64_sparc_vec,
1161         &bfd_elf64_sparc_freebsd_vec,
1162         &bfd_elf64_sparc_sol2_vec,
1163         &bfd_elf64_tilegx_be_vec,
1164         &bfd_elf64_tilegx_le_vec,
1165         &bfd_elf64_tradbigmips_vec,
1166         &bfd_elf64_tradlittlemips_vec,
1167         &bfd_elf64_tradbigmips_freebsd_vec,
1168         &bfd_elf64_tradlittlemips_freebsd_vec,
1169         &bfd_elf64_x86_64_freebsd_vec,
1170         &bfd_elf64_x86_64_nacl_vec,
1171         &bfd_elf64_x86_64_sol2_vec,
1172         &bfd_elf64_x86_64_vec,
1173         &bfd_elf32_x86_64_nacl_vec,
1174         &bfd_elf32_x86_64_vec,
1175         &bfd_elf64_l1om_freebsd_vec,
1176         &bfd_elf64_l1om_vec,
1177         &bfd_elf64_k1om_freebsd_vec,
1178         &bfd_elf64_k1om_vec,
1179         &bfd_mmo_vec,
1180 #endif
1181         &bfd_powerpc_pe_vec,
1182         &bfd_powerpc_pei_vec,
1183         &bfd_powerpcle_pe_vec,
1184         &bfd_powerpcle_pei_vec,
1185         &cris_aout_vec,
1186 #ifdef BFD64
1187         &demo_64_vec,   /* Only compiled if host has long-long support.  */
1188 #endif
1189         &ecoff_big_vec,
1190         &ecoff_biglittle_vec,
1191         &ecoff_little_vec,
1192 #ifdef BFD64
1193         &ecoffalpha_little_vec,
1194 #endif
1195         &go32coff_vec,
1196         &go32stubbedcoff_vec,
1197         &h8300coff_vec,
1198         &h8500coff_vec,
1199 #if 0
1200         /* Since a.out files lack decent magic numbers, no way to recognize
1201            which kind of a.out file it is.  */
1202         &host_aout_vec,
1203         /* Clashes with sunos_big_vec magic no.  */
1204         &hp300bsd_vec,
1205 #endif
1206         &hp300hpux_vec,
1207         &i386aout_vec,
1208         &i386bsd_vec,
1209         &i386coff_vec,
1210 #if 0
1211         &i386dynix_vec,
1212 #endif
1213         &i386freebsd_vec,
1214 #if 0
1215         /* Since a.out files lack decent magic numbers, no way to recognize
1216            which kind of a.out file it is.  */
1217         &i386linux_vec,
1218 #endif
1219         &i386lynx_aout_vec,
1220         &i386lynx_coff_vec,
1221 #if 0
1222         /* No distinguishing features for Mach 3 executables.  */
1223         &i386mach3_vec,
1224 #endif
1225         &i386msdos_vec,
1226         &i386netbsd_vec,
1227         &i386os9k_vec,
1228         &i386pe_vec,
1229         &i386pei_vec,
1230 #ifdef BFD64
1231         &x86_64coff_vec,
1232         &x86_64pe_vec,
1233         &x86_64pei_vec,
1234 #endif
1235         &i860coff_vec,
1236         &icoff_big_vec,
1237         &icoff_little_vec,
1238         &ieee_vec,
1239 #if 0
1240         &m68k4knetbsd_vec,
1241         &m68kaux_coff_vec,
1242 #endif
1243         &m68kcoff_vec,
1244         &m68kcoffun_vec,
1245 #if 0
1246         /* Since a.out files lack decent magic numbers, no way to recognize
1247            which kind of a.out file it is.  */
1248         &m68klinux_vec,
1249 #endif
1250         &m68knetbsd_vec,
1251         &m68ksysvcoff_vec,
1252         &m88kbcs_vec,
1253         &m88kmach3_vec,
1254         &m88kopenbsd_vec,
1255         &mach_o_be_vec,
1256         &mach_o_le_vec,
1257         &mach_o_fat_vec,
1258         &mach_o_i386_vec,
1259 #ifdef BFD64
1260         &mach_o_x86_64_vec,
1261 #endif
1262         &mcore_pe_big_vec,
1263         &mcore_pe_little_vec,
1264         &mcore_pei_big_vec,
1265         &mcore_pei_little_vec,
1266         &mipslpe_vec,
1267         &mipslpei_vec,
1268         &newsos3_vec,
1269 #ifdef BFD64
1270         &nlm32_alpha_vec,
1271 #endif
1272         &nlm32_i386_vec,
1273         &nlm32_powerpc_vec,
1274         &nlm32_sparc_vec,
1275 #if 0
1276         /* We have no oasys tools anymore, so we can't test any of this
1277            anymore. If you want to test the stuff yourself, go ahead...
1278            steve@cygnus.com
1279            Worse, since there is no magic number for archives, there
1280            can be annoying target mis-matches.  */
1281         &oasys_vec,
1282 #endif
1283         /* Entry for the OpenRISC family.  */
1284         &or32coff_big_vec,
1285
1286         &pc532machaout_vec,
1287         &pc532netbsd_vec,
1288         &pdp11_aout_vec,
1289         &pef_vec,
1290         &pef_xlib_vec,
1291 #if BFD_SUPPORTS_PLUGINS
1292         &plugin_vec,
1293 #endif
1294 #if 0
1295         /* This has the same magic number as RS/6000.  */
1296         &pmac_xcoff_vec,
1297 #endif
1298         &ppcboot_vec,
1299 #if 0
1300         /* We have no way of distinguishing these from other a.out variants.  */
1301         &riscix_vec,
1302 #endif
1303 #ifdef BFD64
1304         &rs6000coff64_vec,
1305 #endif
1306         &rs6000coff_vec,
1307         &shcoff_small_vec,
1308         &shcoff_vec,
1309         &shlcoff_small_vec,
1310         &shlcoff_vec,
1311         &shlpe_vec,
1312         &shlpei_vec,
1313         &som_vec,
1314         &sparccoff_vec,
1315         &sparcle_aout_vec,
1316         &sparclinux_vec,
1317         &sparclynx_aout_vec,
1318         &sparclynx_coff_vec,
1319         &sparcnetbsd_vec,
1320         &sunos_big_vec,
1321         &sym_vec,
1322         &tic30_aout_vec,
1323         &tic30_coff_vec,
1324         &tic54x_coff0_beh_vec,
1325         &tic54x_coff0_vec,
1326         &tic54x_coff1_beh_vec,
1327         &tic54x_coff1_vec,
1328         &tic54x_coff2_beh_vec,
1329         &tic54x_coff2_vec,
1330         &tic80coff_vec,
1331         &vaxbsd_vec,
1332         &vaxnetbsd_vec,
1333         &vax1knetbsd_vec,
1334         &versados_vec,
1335 #ifdef BFD64
1336         &vms_alpha_vec,
1337 #endif
1338         &vms_lib_txt_vec,
1339         &w65_vec,
1340         &we32kcoff_vec,
1341         &z80coff_vec,
1342         &z8kcoff_vec,
1343         &bfd_elf32_am33lin_vec,
1344 #endif /* not SELECT_VECS */
1345
1346 /* Always support S-records, for convenience.  */
1347         &srec_vec,
1348         &symbolsrec_vec,
1349 /* And verilog.  */
1350         &verilog_vec,
1351 /* And tekhex */
1352         &tekhex_vec,
1353 /* Likewise for binary output.  */
1354         &binary_vec,
1355 /* Likewise for ihex.  */
1356         &ihex_vec,
1357
1358 /* Add any required traditional-core-file-handler.  */
1359
1360 #ifdef AIX386_CORE
1361         &aix386_core_vec,
1362 #endif
1363 #if 0
1364         /* We don't include cisco_core_*_vec.  Although it has a magic number,
1365            the magic number isn't at the beginning of the file, and thus
1366            might spuriously match other kinds of files.  */
1367         &cisco_core_big_vec,
1368         &cisco_core_little_vec,
1369 #endif
1370 #ifdef HPPABSD_CORE
1371         &hppabsd_core_vec,
1372 #endif
1373 #ifdef HPUX_CORE
1374         &hpux_core_vec,
1375 #endif
1376 #ifdef IRIX_CORE
1377         &irix_core_vec,
1378 #endif
1379 #ifdef NETBSD_CORE
1380         &netbsd_core_vec,
1381 #endif
1382 #ifdef OSF_CORE
1383         &osf_core_vec,
1384 #endif
1385 #ifdef PTRACE_CORE
1386         &ptrace_core_vec,
1387 #endif
1388 #ifdef SCO5_CORE
1389         &sco5_core_vec,
1390 #endif
1391 #ifdef TRAD_CORE
1392         &trad_core_vec,
1393 #endif
1394
1395         NULL /* end of list marker */
1396 };
1397 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1398
1399 /* bfd_default_vector[0] contains either the address of the default vector,
1400    if there is one, or zero if there isn't.  */
1401
1402 const bfd_target *bfd_default_vector[] = {
1403 #ifdef DEFAULT_VECTOR
1404         &DEFAULT_VECTOR,
1405 #endif
1406         NULL
1407 };
1408
1409 /* bfd_associated_vector[] contains the associated target vectors used
1410    to reduce the ambiguity in bfd_check_format_matches.  */
1411
1412 static const bfd_target *_bfd_associated_vector[] = {
1413 #ifdef ASSOCIATED_VECS
1414         ASSOCIATED_VECS,
1415 #endif
1416         NULL
1417 };
1418 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
1419
1420 /* When there is an ambiguous match, bfd_check_format_matches puts the
1421    names of the matching targets in an array.  This variable is the maximum
1422    number of entries that the array could possibly need.  */
1423 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1424 \f
1425 /* This array maps configuration triplets onto BFD vectors.  */
1426
1427 struct targmatch
1428 {
1429   /* The configuration triplet.  */
1430   const char *triplet;
1431   /* The BFD vector.  If this is NULL, then the vector is found by
1432      searching forward for the next structure with a non NULL vector
1433      field.  */
1434   const bfd_target *vector;
1435 };
1436
1437 /* targmatch.h is built by Makefile out of config.bfd.  */
1438 static const struct targmatch bfd_target_match[] = {
1439 #include "targmatch.h"
1440   { NULL, NULL }
1441 };
1442
1443 /* Find a target vector, given a name or configuration triplet.  */
1444
1445 static const bfd_target *
1446 find_target (const char *name)
1447 {
1448   const bfd_target * const *target;
1449   const struct targmatch *match;
1450
1451   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1452     if (strcmp (name, (*target)->name) == 0)
1453       return *target;
1454
1455   /* If we couldn't match on the exact name, try matching on the
1456      configuration triplet.  FIXME: We should run the triplet through
1457      config.sub first, but that is hard.  */
1458   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1459     {
1460       if (fnmatch (match->triplet, name, 0) == 0)
1461         {
1462           while (match->vector == NULL)
1463             ++match;
1464           return match->vector;
1465         }
1466     }
1467
1468   bfd_set_error (bfd_error_invalid_target);
1469   return NULL;
1470 }
1471
1472 /*
1473 FUNCTION
1474         bfd_set_default_target
1475
1476 SYNOPSIS
1477         bfd_boolean bfd_set_default_target (const char *name);
1478
1479 DESCRIPTION
1480         Set the default target vector to use when recognizing a BFD.
1481         This takes the name of the target, which may be a BFD target
1482         name or a configuration triplet.
1483 */
1484
1485 bfd_boolean
1486 bfd_set_default_target (const char *name)
1487 {
1488   const bfd_target *target;
1489
1490   if (bfd_default_vector[0] != NULL
1491       && strcmp (name, bfd_default_vector[0]->name) == 0)
1492     return TRUE;
1493
1494   target = find_target (name);
1495   if (target == NULL)
1496     return FALSE;
1497
1498   bfd_default_vector[0] = target;
1499   return TRUE;
1500 }
1501
1502 /*
1503 FUNCTION
1504         bfd_find_target
1505
1506 SYNOPSIS
1507         const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1508
1509 DESCRIPTION
1510         Return a pointer to the transfer vector for the object target
1511         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1512         choose the one in the environment variable <<GNUTARGET>>; if
1513         that is null or not defined, then choose the first entry in the
1514         target list.  Passing in the string "default" or setting the
1515         environment variable to "default" will cause the first entry in
1516         the target list to be returned, and "target_defaulted" will be
1517         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1518         <<bfd_check_format>> to loop over all the targets to find the
1519         one that matches the file being read.
1520 */
1521
1522 const bfd_target *
1523 bfd_find_target (const char *target_name, bfd *abfd)
1524 {
1525   const char *targname;
1526   const bfd_target *target;
1527
1528   if (target_name != NULL)
1529     targname = target_name;
1530   else
1531     targname = getenv ("GNUTARGET");
1532
1533   /* This is safe; the vector cannot be null.  */
1534   if (targname == NULL || strcmp (targname, "default") == 0)
1535     {
1536       if (bfd_default_vector[0] != NULL)
1537         target = bfd_default_vector[0];
1538       else
1539         target = bfd_target_vector[0];
1540       if (abfd)
1541         {
1542           abfd->xvec = target;
1543           abfd->target_defaulted = TRUE;
1544         }
1545       return target;
1546     }
1547
1548   if (abfd)
1549     abfd->target_defaulted = FALSE;
1550
1551   target = find_target (targname);
1552   if (target == NULL)
1553     return NULL;
1554
1555   if (abfd)
1556     abfd->xvec = target;
1557   return target;
1558 }
1559
1560 /* Helper function for bfd_get_target_info to determine the target's
1561    architecture.  This method handles bfd internal target names as
1562    tuples and triplets.  */
1563 static bfd_boolean
1564 _bfd_find_arch_match (const char *tname, const char **arch,
1565                       const char **def_target_arch)
1566 {
1567   if (!arch)
1568     return FALSE;
1569
1570   while (*arch != NULL)
1571     {
1572       const char *in_a = strstr (*arch, tname);
1573       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1574
1575       if (in_a && (in_a == *arch || in_a[-1] == ':')
1576           && end_ch == 0)
1577         {
1578           *def_target_arch = *arch;
1579           return TRUE;
1580         }
1581       arch++;
1582     }
1583   return FALSE;
1584 }
1585
1586 /*
1587 FUNCTION
1588         bfd_get_target_info
1589 SYNOPSIS
1590         const bfd_target *bfd_get_target_info (const char *target_name,
1591                                                bfd *abfd,
1592                                                bfd_boolean *is_bigendian,
1593                                                int *underscoring,
1594                                                const char **def_target_arch);
1595 DESCRIPTION
1596         Return a pointer to the transfer vector for the object target
1597         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1598         choose the one in the environment variable <<GNUTARGET>>; if
1599         that is null or not defined, then choose the first entry in the
1600         target list.  Passing in the string "default" or setting the
1601         environment variable to "default" will cause the first entry in
1602         the target list to be returned, and "target_defaulted" will be
1603         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1604         <<bfd_check_format>> to loop over all the targets to find the
1605         one that matches the file being read.
1606         If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1607         endian mode. True for big-endian, FALSE for little-endian or for
1608         invalid target.
1609         If @var{underscoring} is not <<NULL>>, then set this value to target's
1610         underscoring mode. Zero for none-underscoring, -1 for invalid target,
1611         else the value of target vector's symbol underscoring.
1612         If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1613         string specified by the target_name.
1614 */
1615 const bfd_target *
1616 bfd_get_target_info (const char *target_name, bfd *abfd,
1617                      bfd_boolean *is_bigendian,
1618                      int *underscoring, const char **def_target_arch)
1619 {
1620   const bfd_target *target_vec;
1621
1622   if (is_bigendian)
1623     *is_bigendian = FALSE;
1624   if (underscoring)
1625     *underscoring = -1;
1626   if (def_target_arch)
1627     *def_target_arch = NULL;
1628   target_vec = bfd_find_target (target_name, abfd);
1629   if (! target_vec)
1630     return NULL;
1631   if (is_bigendian)
1632     *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
1633                                                                : FALSE);
1634   if (underscoring)
1635     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1636
1637   if (def_target_arch)
1638     {
1639       const char *tname = target_vec->name;
1640       const char **arches = bfd_arch_list ();
1641
1642       if (arches && tname)
1643         {
1644           char *hyp = strchr (tname, '-');
1645
1646           if (hyp != NULL)
1647             {
1648               tname = ++hyp;
1649
1650               /* Make sure we detect architecture names
1651                  for triplets like "pe-arm-wince-little".  */
1652               if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1653                 {
1654                   char new_tname[50];
1655
1656                   strcpy (new_tname, hyp);
1657                   while ((hyp = strrchr (new_tname, '-')) != NULL)
1658                     {
1659                       *hyp = 0;
1660                       if (_bfd_find_arch_match (new_tname, arches,
1661                                                 def_target_arch))
1662                         break;
1663                     }
1664                 }
1665             }
1666           else
1667             _bfd_find_arch_match (tname, arches, def_target_arch);
1668         }
1669
1670       if (arches)
1671         free (arches);
1672     }
1673   return target_vec;
1674 }
1675
1676 /*
1677 FUNCTION
1678         bfd_target_list
1679
1680 SYNOPSIS
1681         const char ** bfd_target_list (void);
1682
1683 DESCRIPTION
1684         Return a freshly malloced NULL-terminated
1685         vector of the names of all the valid BFD targets. Do not
1686         modify the names.
1687
1688 */
1689
1690 const char **
1691 bfd_target_list (void)
1692 {
1693   int vec_length = 0;
1694   bfd_size_type amt;
1695   const bfd_target * const *target;
1696   const  char **name_list, **name_ptr;
1697
1698   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1699     vec_length++;
1700
1701   amt = (vec_length + 1) * sizeof (char **);
1702   name_ptr = name_list = (const  char **) bfd_malloc (amt);
1703
1704   if (name_list == NULL)
1705     return NULL;
1706
1707   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1708     if (target == &bfd_target_vector[0]
1709         || *target != bfd_target_vector[0])
1710       *name_ptr++ = (*target)->name;
1711
1712   *name_ptr = NULL;
1713   return name_list;
1714 }
1715
1716 /*
1717 FUNCTION
1718         bfd_seach_for_target
1719
1720 SYNOPSIS
1721         const bfd_target *bfd_search_for_target
1722           (int (*search_func) (const bfd_target *, void *),
1723            void *);
1724
1725 DESCRIPTION
1726         Return a pointer to the first transfer vector in the list of
1727         transfer vectors maintained by BFD that produces a non-zero
1728         result when passed to the function @var{search_func}.  The
1729         parameter @var{data} is passed, unexamined, to the search
1730         function.
1731 */
1732
1733 const bfd_target *
1734 bfd_search_for_target (int (*search_func) (const bfd_target *, void *),
1735                        void *data)
1736 {
1737   const bfd_target * const *target;
1738
1739   for (target = bfd_target_vector; *target != NULL; target ++)
1740     if (search_func (*target, data))
1741       return *target;
1742
1743   return NULL;
1744 }