bfd/targets.c

   1 /* Generic target-file-type support for the BFD library.
   2    Copyright (C) 1990-2017 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 .  {* N.B. Update bfd_flavour_name if you change this.  *}
 148 .  bfd_target_unknown_flavour,
 149 .  bfd_target_aout_flavour,
 150 .  bfd_target_coff_flavour,
 151 .  bfd_target_ecoff_flavour,
 152 .  bfd_target_xcoff_flavour,
 153 .  bfd_target_elf_flavour,
 154 .  bfd_target_ieee_flavour,
 155 .  bfd_target_nlm_flavour,
 156 .  bfd_target_oasys_flavour,
 157 .  bfd_target_tekhex_flavour,
 158 .  bfd_target_srec_flavour,
 159 .  bfd_target_verilog_flavour,
 160 .  bfd_target_ihex_flavour,
 161 .  bfd_target_som_flavour,
 162 .  bfd_target_os9k_flavour,
 163 .  bfd_target_versados_flavour,
 164 .  bfd_target_msdos_flavour,
 165 .  bfd_target_ovax_flavour,
 166 .  bfd_target_evax_flavour,
 167 .  bfd_target_mmo_flavour,
 168 .  bfd_target_mach_o_flavour,
 169 .  bfd_target_pef_flavour,
 170 .  bfd_target_pef_xlib_flavour,
 171 .  bfd_target_sym_flavour
 172 .};
 173 .
 174 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
 175 .
 176 .{* Forward declaration.  *}
 177 .typedef struct bfd_link_info _bfd_link_info;
 178 .
 179 .{* Forward declaration.  *}
 180 .typedef struct flag_info flag_info;
 181 .
 182 .typedef struct bfd_target
 183 .{
 184 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
 185 .  char *name;
 186 .
 187 . {* The "flavour" of a back end is a general indication about
 188 .    the contents of a file.  *}
 189 .  enum bfd_flavour flavour;
 190 .
 191 .  {* The order of bytes within the data area of a file.  *}
 192 .  enum bfd_endian byteorder;
 193 .
 194 . {* The order of bytes within the header parts of a file.  *}
 195 .  enum bfd_endian header_byteorder;
 196 .
 197 .  {* A mask of all the flags which an executable may have set -
 198 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
 199 .  flagword object_flags;
 200 .
 201 . {* A mask of all the flags which a section may have set - from
 202 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
 203 .  flagword section_flags;
 204 .
 205 . {* The character normally found at the front of a symbol.
 206 .    (if any), perhaps `_'.  *}
 207 .  char symbol_leading_char;
 208 .
 209 . {* The pad character for file names within an archive header.  *}
 210 .  char ar_pad_char;
 211 .
 212 .  {* The maximum number of characters in an archive header.  *}
 213 .  unsigned char ar_max_namelen;
 214 .
 215 .  {* How well this target matches, used to select between various
 216 .     possible targets when more than one target matches.  *}
 217 .  unsigned char match_priority;
 218 .
 219 .  {* Entries for byte swapping for data. These are different from the
 220 .     other entry points, since they don't take a BFD as the first argument.
 221 .     Certain other handlers could do the same.  *}
 222 .  bfd_uint64_t   (*bfd_getx64) (const void *);
 223 .  bfd_int64_t    (*bfd_getx_signed_64) (const void *);
 224 .  void           (*bfd_putx64) (bfd_uint64_t, void *);
 225 .  bfd_vma        (*bfd_getx32) (const void *);
 226 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
 227 .  void           (*bfd_putx32) (bfd_vma, void *);
 228 .  bfd_vma        (*bfd_getx16) (const void *);
 229 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
 230 .  void           (*bfd_putx16) (bfd_vma, void *);
 231 .
 232 .  {* Byte swapping for the headers.  *}
 233 .  bfd_uint64_t   (*bfd_h_getx64) (const void *);
 234 .  bfd_int64_t    (*bfd_h_getx_signed_64) (const void *);
 235 .  void           (*bfd_h_putx64) (bfd_uint64_t, void *);
 236 .  bfd_vma        (*bfd_h_getx32) (const void *);
 237 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
 238 .  void           (*bfd_h_putx32) (bfd_vma, void *);
 239 .  bfd_vma        (*bfd_h_getx16) (const void *);
 240 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
 241 .  void           (*bfd_h_putx16) (bfd_vma, void *);
 242 .
 243 .  {* Format dependent routines: these are vectors of entry points
 244 .     within the target vector structure, one for each format to check.  *}
 245 .
 246 .  {* Check the format of a file being read.  Return a <<bfd_target *>> or zero.  *}
 247 .  const struct bfd_target *(*_bfd_check_format[bfd_type_end]) (bfd *);
 248 .
 249 .  {* Set the format of a file being written.  *}
 250 .  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
 251 .
 252 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
 253 .  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
 254 .
 255 The general target vector.  These vectors are initialized using the
 256 BFD_JUMP_TABLE macros.
 257 .
 258 .  {* Generic entry points.  *}
 259 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
 260 .  NAME##_close_and_cleanup, \
 261 .  NAME##_bfd_free_cached_info, \
 262 .  NAME##_new_section_hook, \
 263 .  NAME##_get_section_contents, \
 264 .  NAME##_get_section_contents_in_window
 265 .
 266 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
 267 .  bfd_boolean (*_close_and_cleanup) (bfd *);
 268 .  {* Ask the BFD to free all cached information.  *}
 269 .  bfd_boolean (*_bfd_free_cached_info) (bfd *);
 270 .  {* Called when a new section is created.  *}
 271 .  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
 272 .  {* Read the contents of a section.  *}
 273 .  bfd_boolean (*_bfd_get_section_contents)
 274 .    (bfd *, sec_ptr, void *, file_ptr, bfd_size_type);
 275 .  bfd_boolean (*_bfd_get_section_contents_in_window)
 276 .    (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type);
 277 .
 278 .  {* Entry points to copy private data.  *}
 279 .#define BFD_JUMP_TABLE_COPY(NAME) \
 280 .  NAME##_bfd_copy_private_bfd_data, \
 281 .  NAME##_bfd_merge_private_bfd_data, \
 282 .  _bfd_generic_init_private_section_data, \
 283 .  NAME##_bfd_copy_private_section_data, \
 284 .  NAME##_bfd_copy_private_symbol_data, \
 285 .  NAME##_bfd_copy_private_header_data, \
 286 .  NAME##_bfd_set_private_flags, \
 287 .  NAME##_bfd_print_private_bfd_data
 288 .
 289 .  {* Called to copy BFD general private data from one object file
 290 .     to another.  *}
 291 .  bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
 292 .  {* Called to merge BFD general private data from one object file
 293 .     to a common output file when linking.  *}
 294 .  bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *);
 295 .  {* Called to initialize BFD private section data from one object file
 296 .     to another.  *}
 297 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
 298 .  BFD_SEND (obfd, _bfd_init_private_section_data, (ibfd, isec, obfd, osec, link_info))
 299 .  bfd_boolean (*_bfd_init_private_section_data)
 300 .    (bfd *, sec_ptr, bfd *, sec_ptr, struct bfd_link_info *);
 301 .  {* Called to copy BFD private section data from one object file
 302 .     to another.  *}
 303 .  bfd_boolean (*_bfd_copy_private_section_data)
 304 .    (bfd *, sec_ptr, bfd *, sec_ptr);
 305 .  {* Called to copy BFD private symbol data from one symbol
 306 .     to another.  *}
 307 .  bfd_boolean (*_bfd_copy_private_symbol_data)
 308 .    (bfd *, asymbol *, bfd *, asymbol *);
 309 .  {* Called to copy BFD private header data from one object file
 310 .     to another.  *}
 311 .  bfd_boolean (*_bfd_copy_private_header_data)
 312 .    (bfd *, bfd *);
 313 .  {* Called to set private backend flags.  *}
 314 .  bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword);
 315 .
 316 .  {* Called to print private BFD data.  *}
 317 .  bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *);
 318 .
 319 .  {* Core file entry points.  *}
 320 .#define BFD_JUMP_TABLE_CORE(NAME) \
 321 .  NAME##_core_file_failing_command, \
 322 .  NAME##_core_file_failing_signal, \
 323 .  NAME##_core_file_matches_executable_p, \
 324 .  NAME##_core_file_pid
 325 .
 326 .  char *      (*_core_file_failing_command) (bfd *);
 327 .  int         (*_core_file_failing_signal) (bfd *);
 328 .  bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *);
 329 .  int         (*_core_file_pid) (bfd *);
 330 .
 331 .  {* Archive entry points.  *}
 332 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
 333 .  NAME##_slurp_armap, \
 334 .  NAME##_slurp_extended_name_table, \
 335 .  NAME##_construct_extended_name_table, \
 336 .  NAME##_truncate_arname, \
 337 .  NAME##_write_armap, \
 338 .  NAME##_read_ar_hdr, \
 339 .  NAME##_write_ar_hdr, \
 340 .  NAME##_openr_next_archived_file, \
 341 .  NAME##_get_elt_at_index, \
 342 .  NAME##_generic_stat_arch_elt, \
 343 .  NAME##_update_armap_timestamp
 344 .
 345 .  bfd_boolean (*_bfd_slurp_armap) (bfd *);
 346 .  bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *);
 347 .  bfd_boolean (*_bfd_construct_extended_name_table)
 348 .    (bfd *, char **, bfd_size_type *, const char **);
 349 .  void        (*_bfd_truncate_arname) (bfd *, const char *, char *);
 350 .  bfd_boolean (*write_armap)
 351 .    (bfd *, unsigned int, struct orl *, unsigned int, int);
 352 .  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
 353 .  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
 354 .  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
 355 .#define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
 356 .  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
 357 .  int         (*_bfd_stat_arch_elt) (bfd *, struct stat *);
 358 .  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
 359 .
 360 .  {* Entry points used for symbols.  *}
 361 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
 362 .  NAME##_get_symtab_upper_bound, \
 363 .  NAME##_canonicalize_symtab, \
 364 .  NAME##_make_empty_symbol, \
 365 .  NAME##_print_symbol, \
 366 .  NAME##_get_symbol_info, \
 367 .  NAME##_get_symbol_version_string, \
 368 .  NAME##_bfd_is_local_label_name, \
 369 .  NAME##_bfd_is_target_special_symbol, \
 370 .  NAME##_get_lineno, \
 371 .  NAME##_find_nearest_line, \
 372 .  NAME##_find_line, \
 373 .  NAME##_find_inliner_info, \
 374 .  NAME##_bfd_make_debug_symbol, \
 375 .  NAME##_read_minisymbols, \
 376 .  NAME##_minisymbol_to_symbol
 377 .
 378 .  long        (*_bfd_get_symtab_upper_bound) (bfd *);
 379 .  long        (*_bfd_canonicalize_symtab)
 380 .    (bfd *, struct bfd_symbol **);
 381 .  struct bfd_symbol *
 382 .              (*_bfd_make_empty_symbol) (bfd *);
 383 .  void        (*_bfd_print_symbol)
 384 .    (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type);
 385 .#define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
 386 .  void        (*_bfd_get_symbol_info)
 387 .    (bfd *, struct bfd_symbol *, symbol_info *);
 388 .#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
 389 .  const char *(*_bfd_get_symbol_version_string)
 390 .    (bfd *, struct bfd_symbol *, bfd_boolean *);
 391 .#define bfd_get_symbol_version_string(b,s,h) BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h))
 392 .  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
 393 .  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
 394 .  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
 395 .  bfd_boolean (*_bfd_find_nearest_line)
 396 .    (bfd *, struct bfd_symbol **, struct bfd_section *, bfd_vma,
 397 .     const char **, const char **, unsigned int *, unsigned int *);
 398 .  bfd_boolean (*_bfd_find_line)
 399 .    (bfd *, struct bfd_symbol **, struct bfd_symbol *,
 400 .     const char **, unsigned int *);
 401 .  bfd_boolean (*_bfd_find_inliner_info)
 402 .    (bfd *, const char **, const char **, unsigned int *);
 403 . {* Back-door to allow format-aware applications to create debug symbols
 404 .    while using BFD for everything else.  Currently used by the assembler
 405 .    when creating COFF files.  *}
 406 .  asymbol *   (*_bfd_make_debug_symbol)
 407 .    (bfd *, void *, unsigned long size);
 408 .#define bfd_read_minisymbols(b, d, m, s) \
 409 .  BFD_SEND (b, _read_minisymbols, (b, d, m, s))
 410 .  long        (*_read_minisymbols)
 411 .    (bfd *, bfd_boolean, void **, unsigned int *);
 412 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
 413 .  BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
 414 .  asymbol *   (*_minisymbol_to_symbol)
 415 .    (bfd *, bfd_boolean, const void *, asymbol *);
 416 .
 417 .  {* Routines for relocs.  *}
 418 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
 419 .  NAME##_get_reloc_upper_bound, \
 420 .  NAME##_canonicalize_reloc, \
 421 .  NAME##_bfd_reloc_type_lookup, \
 422 .  NAME##_bfd_reloc_name_lookup
 423 .
 424 .  long        (*_get_reloc_upper_bound) (bfd *, sec_ptr);
 425 .  long        (*_bfd_canonicalize_reloc)
 426 .    (bfd *, sec_ptr, arelent **, struct bfd_symbol **);
 427 .  {* See documentation on reloc types.  *}
 428 .  reloc_howto_type *
 429 .              (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
 430 .  reloc_howto_type *
 431 .              (*reloc_name_lookup) (bfd *, const char *);
 432 .
 433 .
 434 .  {* Routines used when writing an object file.  *}
 435 .#define BFD_JUMP_TABLE_WRITE(NAME) \
 436 .  NAME##_set_arch_mach, \
 437 .  NAME##_set_section_contents
 438 .
 439 .  bfd_boolean (*_bfd_set_arch_mach)
 440 .    (bfd *, enum bfd_architecture, unsigned long);
 441 .  bfd_boolean (*_bfd_set_section_contents)
 442 .    (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type);
 443 .
 444 .  {* Routines used by the linker.  *}
 445 .#define BFD_JUMP_TABLE_LINK(NAME) \
 446 .  NAME##_sizeof_headers, \
 447 .  NAME##_bfd_get_relocated_section_contents, \
 448 .  NAME##_bfd_relax_section, \
 449 .  NAME##_bfd_link_hash_table_create, \
 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_link_check_relocs, \
 456 .  NAME##_bfd_gc_sections, \
 457 .  NAME##_bfd_lookup_section_flags, \
 458 .  NAME##_bfd_merge_sections, \
 459 .  NAME##_bfd_is_group_section, \
 460 .  NAME##_bfd_discard_group, \
 461 .  NAME##_section_already_linked, \
 462 .  NAME##_bfd_define_common_symbol
 463 .
 464 .  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
 465 .  bfd_byte *  (*_bfd_get_relocated_section_contents)
 466 .    (bfd *, struct bfd_link_info *, struct bfd_link_order *,
 467 .     bfd_byte *, bfd_boolean, struct bfd_symbol **);
 468 .
 469 .  bfd_boolean (*_bfd_relax_section)
 470 .    (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
 471 .
 472 .  {* Create a hash table for the linker.  Different backends store
 473 .     different information in this table.  *}
 474 .  struct bfd_link_hash_table *
 475 .              (*_bfd_link_hash_table_create) (bfd *);
 476 .
 477 .  {* Add symbols from this object file into the hash table.  *}
 478 .  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
 479 .
 480 .  {* Indicate that we are only retrieving symbol values from this section.  *}
 481 .  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
 482 .
 483 .  {* Copy the symbol type and other attributes for a linker script
 484 .     assignment of one symbol to another.  *}
 485 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
 486 .  BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
 487 .  void (*_bfd_copy_link_hash_symbol_type)
 488 .    (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
 489 .
 490 .  {* Do a link based on the link_order structures attached to each
 491 .     section of the BFD.  *}
 492 .  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
 493 .
 494 .  {* Should this section be split up into smaller pieces during linking.  *}
 495 .  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
 496 .
 497 .  {* Check the relocations in the bfd for validity.  *}
 498 .  bfd_boolean (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
 499 .
 500 .  {* Remove sections that are not referenced from the output.  *}
 501 .  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
 502 .
 503 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
 504 .  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
 505 .                                            struct flag_info *,
 506 .                                            asection *);
 507 .
 508 .  {* Attempt to merge SEC_MERGE sections.  *}
 509 .  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
 510 .
 511 .  {* Is this section a member of a group?  *}
 512 .  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
 513 .
 514 .  {* Discard members of a group.  *}
 515 .  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
 516 .
 517 .  {* Check if SEC has been already linked during a reloceatable or
 518 .     final link.  *}
 519 .  bfd_boolean (*_section_already_linked) (bfd *, asection *,
 520 .                                          struct bfd_link_info *);
 521 .
 522 .  {* Define a common symbol.  *}
 523 .  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
 524 .                                            struct bfd_link_hash_entry *);
 525 .
 526 .  {* Routines to handle dynamic symbols and relocs.  *}
 527 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
 528 .  NAME##_get_dynamic_symtab_upper_bound, \
 529 .  NAME##_canonicalize_dynamic_symtab, \
 530 .  NAME##_get_synthetic_symtab, \
 531 .  NAME##_get_dynamic_reloc_upper_bound, \
 532 .  NAME##_canonicalize_dynamic_reloc
 533 .
 534 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
 535 .  long        (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
 536 .  {* Read in the dynamic symbols.  *}
 537 .  long        (*_bfd_canonicalize_dynamic_symtab)
 538 .    (bfd *, struct bfd_symbol **);
 539 .  {* Create synthetized symbols.  *}
 540 .  long        (*_bfd_get_synthetic_symtab)
 541 .    (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **,
 542 .     struct bfd_symbol **);
 543 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
 544 .  long        (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
 545 .  {* Read in the dynamic relocs.  *}
 546 .  long        (*_bfd_canonicalize_dynamic_reloc)
 547 .    (bfd *, arelent **, struct bfd_symbol **);
 548 .
 549
 550 A pointer to an alternative bfd_target in case the current one is not
 551 satisfactory.  This can happen when the target cpu supports both big
 552 and little endian code, and target chosen by the linker has the wrong
 553 endianness.  The function open_output() in ld/ldlang.c uses this field
 554 to find an alternative output format that is suitable.
 555
 556 .  {* Opposite endian version of this target.  *}
 557 .  const struct bfd_target * alternative_target;
 558 .
 559
 560 .  {* Data for use by back-end routines, which isn't
 561 .     generic enough to belong in this structure.  *}
 562 .  const void *backend_data;
 563 .
 564 .} bfd_target;
 565 .
 566 */
 567
 568 /* All known xvecs (even those that don't compile on all systems).
 569    Alphabetized for easy reference.
 570    They are listed a second time below, since
 571    we can't intermix extern's and initializers.  */
 572 extern const bfd_target aarch64_elf32_be_vec;
 573 extern const bfd_target aarch64_elf32_le_vec;
 574 extern const bfd_target aarch64_elf64_be_vec;
 575 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
 576 extern const bfd_target aarch64_elf64_le_vec;
 577 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
 578 extern const bfd_target aarch64_mach_o_vec;
 579 extern const bfd_target alpha_ecoff_le_vec;
 580 extern const bfd_target alpha_elf64_vec;
 581 extern const bfd_target alpha_elf64_fbsd_vec;
 582 extern const bfd_target alpha_nlm32_vec;
 583 extern const bfd_target alpha_vms_vec;
 584 extern const bfd_target alpha_vms_lib_txt_vec;
 585 extern const bfd_target am33_elf32_linux_vec;
 586 extern const bfd_target aout0_be_vec;
 587 extern const bfd_target aout64_vec;
 588 extern const bfd_target aout_vec;
 589 extern const bfd_target aout_adobe_vec;
 590 extern const bfd_target arc_elf32_be_vec;
 591 extern const bfd_target arc_elf32_le_vec;
 592 extern const bfd_target arm_aout_be_vec;
 593 extern const bfd_target arm_aout_le_vec;
 594 extern const bfd_target arm_aout_nbsd_vec;
 595 extern const bfd_target arm_aout_riscix_vec;
 596 extern const bfd_target arm_coff_be_vec;
 597 extern const bfd_target arm_coff_le_vec;
 598 extern const bfd_target arm_elf32_be_vec;
 599 extern const bfd_target arm_elf32_le_vec;
 600 extern const bfd_target arm_elf32_nacl_be_vec;
 601 extern const bfd_target arm_elf32_nacl_le_vec;
 602 extern const bfd_target arm_elf32_symbian_be_vec;
 603 extern const bfd_target arm_elf32_symbian_le_vec;
 604 extern const bfd_target arm_elf32_vxworks_be_vec;
 605 extern const bfd_target arm_elf32_vxworks_le_vec;
 606 extern const bfd_target arm_mach_o_vec;
 607 extern const bfd_target arm_pe_be_vec;
 608 extern const bfd_target arm_pe_le_vec;
 609 extern const bfd_target arm_pe_epoc_be_vec;
 610 extern const bfd_target arm_pe_epoc_le_vec;
 611 extern const bfd_target arm_pe_wince_be_vec;
 612 extern const bfd_target arm_pe_wince_le_vec;
 613 extern const bfd_target arm_pei_be_vec;
 614 extern const bfd_target arm_pei_le_vec;
 615 extern const bfd_target arm_pei_epoc_be_vec;
 616 extern const bfd_target arm_pei_epoc_le_vec;
 617 extern const bfd_target arm_pei_wince_be_vec;
 618 extern const bfd_target arm_pei_wince_le_vec;
 619 extern const bfd_target avr_elf32_vec;
 620 extern const bfd_target bfin_elf32_vec;
 621 extern const bfd_target bfin_elf32_fdpic_vec;
 622 extern const bfd_target bout_be_vec;
 623 extern const bfd_target bout_le_vec;
 624 extern const bfd_target cr16_elf32_vec;
 625 extern const bfd_target cr16c_elf32_vec;
 626 extern const bfd_target cris_aout_vec;
 627 extern const bfd_target cris_elf32_vec;
 628 extern const bfd_target cris_elf32_us_vec;
 629 extern const bfd_target crx_elf32_vec;
 630 extern const bfd_target d10v_elf32_vec;
 631 extern const bfd_target d30v_elf32_vec;
 632 extern const bfd_target dlx_elf32_be_vec;
 633 extern const bfd_target elf32_be_vec;
 634 extern const bfd_target elf32_le_vec;
 635 extern const bfd_target elf64_be_vec;
 636 extern const bfd_target elf64_le_vec;
 637 extern const bfd_target epiphany_elf32_vec;
 638 extern const bfd_target fr30_elf32_vec;
 639 extern const bfd_target frv_elf32_vec;
 640 extern const bfd_target frv_elf32_fdpic_vec;
 641 extern const bfd_target h8300_coff_vec;
 642 extern const bfd_target h8300_elf32_vec;
 643 extern const bfd_target h8300_elf32_linux_vec;
 644 extern const bfd_target h8500_coff_vec;
 645 extern const bfd_target hppa_elf32_vec;
 646 extern const bfd_target hppa_elf32_linux_vec;
 647 extern const bfd_target hppa_elf32_nbsd_vec;
 648 extern const bfd_target hppa_elf64_vec;
 649 extern const bfd_target hppa_elf64_linux_vec;
 650 extern const bfd_target hppa_som_vec;
 651 extern const bfd_target i370_elf32_vec;
 652 extern const bfd_target i386_aout_vec;
 653 extern const bfd_target i386_aout_bsd_vec;
 654 extern const bfd_target i386_aout_dynix_vec;
 655 extern const bfd_target i386_aout_fbsd_vec;
 656 extern const bfd_target i386_aout_linux_vec;
 657 extern const bfd_target i386_aout_lynx_vec;
 658 extern const bfd_target i386_aout_mach3_vec;
 659 extern const bfd_target i386_aout_nbsd_vec;
 660 extern const bfd_target i386_aout_os9k_vec;
 661 extern const bfd_target i386_coff_vec;
 662 extern const bfd_target i386_coff_go32_vec;
 663 extern const bfd_target i386_coff_go32stubbed_vec;
 664 extern const bfd_target i386_coff_lynx_vec;
 665 extern const bfd_target i386_elf32_vec;
 666 extern const bfd_target i386_elf32_fbsd_vec;
 667 extern const bfd_target i386_elf32_nacl_vec;
 668 extern const bfd_target i386_elf32_sol2_vec;
 669 extern const bfd_target i386_elf32_vxworks_vec;
 670 extern const bfd_target i386_mach_o_vec;
 671 extern const bfd_target i386_msdos_vec;
 672 extern const bfd_target i386_nlm32_vec;
 673 extern const bfd_target i386_pe_vec;
 674 extern const bfd_target i386_pei_vec;
 675 extern const bfd_target iamcu_elf32_vec;
 676 extern const bfd_target i860_coff_vec;
 677 extern const bfd_target i860_elf32_vec;
 678 extern const bfd_target i860_elf32_le_vec;
 679 extern const bfd_target i960_elf32_vec;
 680 extern const bfd_target ia64_elf32_be_vec;
 681 extern const bfd_target ia64_elf32_hpux_be_vec;
 682 extern const bfd_target ia64_elf64_be_vec;
 683 extern const bfd_target ia64_elf64_le_vec;
 684 extern const bfd_target ia64_elf64_hpux_be_vec;
 685 extern const bfd_target ia64_elf64_vms_vec;
 686 extern const bfd_target ia64_pei_vec;
 687 extern const bfd_target icoff_be_vec;
 688 extern const bfd_target icoff_le_vec;
 689 extern const bfd_target ieee_vec;
 690 extern const bfd_target ip2k_elf32_vec;
 691 extern const bfd_target iq2000_elf32_vec;
 692 extern const bfd_target k1om_elf64_vec;
 693 extern const bfd_target k1om_elf64_fbsd_vec;
 694 extern const bfd_target l1om_elf64_vec;
 695 extern const bfd_target l1om_elf64_fbsd_vec;
 696 extern const bfd_target lm32_elf32_vec;
 697 extern const bfd_target lm32_elf32_fdpic_vec;
 698 extern const bfd_target m32c_elf32_vec;
 699 extern const bfd_target m32r_elf32_vec;
 700 extern const bfd_target m32r_elf32_le_vec;
 701 extern const bfd_target m32r_elf32_linux_vec;
 702 extern const bfd_target m32r_elf32_linux_le_vec;
 703 extern const bfd_target m68hc11_elf32_vec;
 704 extern const bfd_target m68hc12_elf32_vec;
 705 extern const bfd_target m68k_aout_4knbsd_vec;
 706 extern const bfd_target m68k_aout_hp300bsd_vec;
 707 extern const bfd_target m68k_aout_hp300hpux_vec;
 708 extern const bfd_target m68k_aout_linux_vec;
 709 extern const bfd_target m68k_aout_nbsd_vec;
 710 extern const bfd_target m68k_aout_newsos3_vec;
 711 extern const bfd_target m68k_coff_vec;
 712 extern const bfd_target m68k_coff_apollo_vec;
 713 extern const bfd_target m68k_coff_aux_vec;
 714 extern const bfd_target m68k_coff_sysv_vec;
 715 extern const bfd_target m68k_coff_un_vec;
 716 extern const bfd_target m68k_elf32_vec;
 717 extern const bfd_target m68k_versados_vec;
 718 extern const bfd_target m88k_aout_mach3_vec;
 719 extern const bfd_target m88k_aout_obsd_vec;
 720 extern const bfd_target m88k_coff_bcs_vec;
 721 extern const bfd_target m88k_elf32_vec;
 722 extern const bfd_target mach_o_be_vec;
 723 extern const bfd_target mach_o_le_vec;
 724 extern const bfd_target mach_o_fat_vec;
 725 extern const bfd_target mcore_elf32_be_vec;
 726 extern const bfd_target mcore_elf32_le_vec;
 727 extern const bfd_target mcore_pe_be_vec;
 728 extern const bfd_target mcore_pe_le_vec;
 729 extern const bfd_target mcore_pei_be_vec;
 730 extern const bfd_target mcore_pei_le_vec;
 731 extern const bfd_target mep_elf32_vec;
 732 extern const bfd_target mep_elf32_le_vec;
 733 extern const bfd_target metag_elf32_vec;
 734 extern const bfd_target microblaze_elf32_vec;
 735 extern const bfd_target microblaze_elf32_le_vec;
 736 extern const bfd_target mips_aout_be_vec;
 737 extern const bfd_target mips_aout_le_vec;
 738 extern const bfd_target mips_ecoff_be_vec;
 739 extern const bfd_target mips_ecoff_le_vec;
 740 extern const bfd_target mips_ecoff_bele_vec;
 741 extern const bfd_target mips_elf32_be_vec;
 742 extern const bfd_target mips_elf32_le_vec;
 743 extern const bfd_target mips_elf32_n_be_vec;
 744 extern const bfd_target mips_elf32_n_le_vec;
 745 extern const bfd_target mips_elf32_ntrad_be_vec;
 746 extern const bfd_target mips_elf32_ntrad_le_vec;
 747 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
 748 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
 749 extern const bfd_target mips_elf32_trad_be_vec;
 750 extern const bfd_target mips_elf32_trad_le_vec;
 751 extern const bfd_target mips_elf32_tradfbsd_be_vec;
 752 extern const bfd_target mips_elf32_tradfbsd_le_vec;
 753 extern const bfd_target mips_elf32_vxworks_be_vec;
 754 extern const bfd_target mips_elf32_vxworks_le_vec;
 755 extern const bfd_target mips_elf64_be_vec;
 756 extern const bfd_target mips_elf64_le_vec;
 757 extern const bfd_target mips_elf64_trad_be_vec;
 758 extern const bfd_target mips_elf64_trad_le_vec;
 759 extern const bfd_target mips_elf64_tradfbsd_be_vec;
 760 extern const bfd_target mips_elf64_tradfbsd_le_vec;
 761 extern const bfd_target mips_pe_le_vec;
 762 extern const bfd_target mips_pei_le_vec;
 763 extern const bfd_target mmix_elf64_vec;
 764 extern const bfd_target mmix_mmo_vec;
 765 extern const bfd_target mn10200_elf32_vec;
 766 extern const bfd_target mn10300_elf32_vec;
 767 extern const bfd_target moxie_elf32_be_vec;
 768 extern const bfd_target moxie_elf32_le_vec;
 769 extern const bfd_target msp430_elf32_vec;
 770 extern const bfd_target msp430_elf32_ti_vec;
 771 extern const bfd_target mt_elf32_vec;
 772 extern const bfd_target nds32_elf32_be_vec;
 773 extern const bfd_target nds32_elf32_le_vec;
 774 extern const bfd_target nds32_elf32_linux_be_vec;
 775 extern const bfd_target nds32_elf32_linux_le_vec;
 776 extern const bfd_target nios2_elf32_be_vec;
 777 extern const bfd_target nios2_elf32_le_vec;
 778 extern const bfd_target ns32k_aout_pc532mach_vec;
 779 extern const bfd_target ns32k_aout_pc532nbsd_vec;
 780 extern const bfd_target oasys_vec;
 781 extern const bfd_target or1k_elf32_vec;
 782 extern const bfd_target pdp11_aout_vec;
 783 extern const bfd_target pef_vec;
 784 extern const bfd_target pef_xlib_vec;
 785 extern const bfd_target pj_elf32_vec;
 786 extern const bfd_target pj_elf32_le_vec;
 787 extern const bfd_target plugin_vec;
 788 extern const bfd_target powerpc_boot_vec;
 789 extern const bfd_target powerpc_elf32_vec;
 790 extern const bfd_target powerpc_elf32_le_vec;
 791 extern const bfd_target powerpc_elf32_fbsd_vec;
 792 extern const bfd_target powerpc_elf32_vxworks_vec;
 793 extern const bfd_target powerpc_elf64_vec;
 794 extern const bfd_target powerpc_elf64_le_vec;
 795 extern const bfd_target powerpc_elf64_fbsd_vec;
 796 extern const bfd_target powerpc_nlm32_vec;
 797 extern const bfd_target powerpc_pe_vec;
 798 extern const bfd_target powerpc_pe_le_vec;
 799 extern const bfd_target powerpc_pei_vec;
 800 extern const bfd_target powerpc_pei_le_vec;
 801 extern const bfd_target powerpc_xcoff_vec;
 802 extern const bfd_target pru_elf32_vec;
 803 extern const bfd_target riscv_elf32_vec;
 804 extern const bfd_target riscv_elf64_vec;
 805 extern const bfd_target rl78_elf32_vec;
 806 extern const bfd_target rs6000_xcoff64_vec;
 807 extern const bfd_target rs6000_xcoff64_aix_vec;
 808 extern const bfd_target rs6000_xcoff_vec;
 809 extern const bfd_target rx_elf32_be_vec;
 810 extern const bfd_target rx_elf32_be_ns_vec;
 811 extern const bfd_target rx_elf32_le_vec;
 812 extern const bfd_target s390_elf32_vec;
 813 extern const bfd_target s390_elf64_vec;
 814 extern const bfd_target score_elf32_be_vec;
 815 extern const bfd_target score_elf32_le_vec;
 816 extern const bfd_target sh64_elf32_vec;
 817 extern const bfd_target sh64_elf32_le_vec;
 818 extern const bfd_target sh64_elf32_linux_vec;
 819 extern const bfd_target sh64_elf32_linux_be_vec;
 820 extern const bfd_target sh64_elf32_nbsd_vec;
 821 extern const bfd_target sh64_elf32_nbsd_le_vec;
 822 extern const bfd_target sh64_elf64_vec;
 823 extern const bfd_target sh64_elf64_le_vec;
 824 extern const bfd_target sh64_elf64_linux_vec;
 825 extern const bfd_target sh64_elf64_linux_be_vec;
 826 extern const bfd_target sh64_elf64_nbsd_vec;
 827 extern const bfd_target sh64_elf64_nbsd_le_vec;
 828 extern const bfd_target sh_coff_vec;
 829 extern const bfd_target sh_coff_le_vec;
 830 extern const bfd_target sh_coff_small_vec;
 831 extern const bfd_target sh_coff_small_le_vec;
 832 extern const bfd_target sh_elf32_vec;
 833 extern const bfd_target sh_elf32_le_vec;
 834 extern const bfd_target sh_elf32_fdpic_be_vec;
 835 extern const bfd_target sh_elf32_fdpic_le_vec;
 836 extern const bfd_target sh_elf32_linux_vec;
 837 extern const bfd_target sh_elf32_linux_be_vec;
 838 extern const bfd_target sh_elf32_nbsd_vec;
 839 extern const bfd_target sh_elf32_nbsd_le_vec;
 840 extern const bfd_target sh_elf32_symbian_le_vec;
 841 extern const bfd_target sh_elf32_vxworks_vec;
 842 extern const bfd_target sh_elf32_vxworks_le_vec;
 843 extern const bfd_target sh_pe_le_vec;
 844 extern const bfd_target sh_pei_le_vec;
 845 extern const bfd_target sparc_aout_le_vec;
 846 extern const bfd_target sparc_aout_linux_vec;
 847 extern const bfd_target sparc_aout_lynx_vec;
 848 extern const bfd_target sparc_aout_nbsd_vec;
 849 extern const bfd_target sparc_aout_sunos_be_vec;
 850 extern const bfd_target sparc_coff_vec;
 851 extern const bfd_target sparc_coff_lynx_vec;
 852 extern const bfd_target sparc_elf32_vec;
 853 extern const bfd_target sparc_elf32_sol2_vec;
 854 extern const bfd_target sparc_elf32_vxworks_vec;
 855 extern const bfd_target sparc_elf64_vec;
 856 extern const bfd_target sparc_elf64_fbsd_vec;
 857 extern const bfd_target sparc_elf64_sol2_vec;
 858 extern const bfd_target sparc_nlm32_vec;
 859 extern const bfd_target spu_elf32_vec;
 860 extern const bfd_target sym_vec;
 861 extern const bfd_target tic30_aout_vec;
 862 extern const bfd_target tic30_coff_vec;
 863 extern const bfd_target tic4x_coff0_vec;
 864 extern const bfd_target tic4x_coff0_beh_vec;
 865 extern const bfd_target tic4x_coff1_vec;
 866 extern const bfd_target tic4x_coff1_beh_vec;
 867 extern const bfd_target tic4x_coff2_vec;
 868 extern const bfd_target tic4x_coff2_beh_vec;
 869 extern const bfd_target tic54x_coff0_vec;
 870 extern const bfd_target tic54x_coff0_beh_vec;
 871 extern const bfd_target tic54x_coff1_vec;
 872 extern const bfd_target tic54x_coff1_beh_vec;
 873 extern const bfd_target tic54x_coff2_vec;
 874 extern const bfd_target tic54x_coff2_beh_vec;
 875 extern const bfd_target tic6x_elf32_be_vec;
 876 extern const bfd_target tic6x_elf32_le_vec;
 877 extern const bfd_target tic6x_elf32_c6000_be_vec;
 878 extern const bfd_target tic6x_elf32_c6000_le_vec;
 879 extern const bfd_target tic6x_elf32_linux_be_vec;
 880 extern const bfd_target tic6x_elf32_linux_le_vec;
 881 extern const bfd_target tic80_coff_vec;
 882 extern const bfd_target tilegx_elf32_be_vec;
 883 extern const bfd_target tilegx_elf32_le_vec;
 884 extern const bfd_target tilegx_elf64_be_vec;
 885 extern const bfd_target tilegx_elf64_le_vec;
 886 extern const bfd_target tilepro_elf32_vec;
 887 extern const bfd_target v800_elf32_vec;
 888 extern const bfd_target v850_elf32_vec;
 889 extern const bfd_target ft32_elf32_vec;
 890 extern const bfd_target vax_aout_1knbsd_vec;
 891 extern const bfd_target vax_aout_bsd_vec;
 892 extern const bfd_target vax_aout_nbsd_vec;
 893 extern const bfd_target vax_elf32_vec;
 894 extern const bfd_target visium_elf32_vec;
 895 extern const bfd_target w65_coff_vec;
 896 extern const bfd_target wasm32_elf32_vec;
 897 extern const bfd_target we32k_coff_vec;
 898 extern const bfd_target x86_64_coff_vec;
 899 extern const bfd_target x86_64_elf32_vec;
 900 extern const bfd_target x86_64_elf32_nacl_vec;
 901 extern const bfd_target x86_64_elf64_vec;
 902 extern const bfd_target x86_64_elf64_cloudabi_vec;
 903 extern const bfd_target x86_64_elf64_fbsd_vec;
 904 extern const bfd_target x86_64_elf64_nacl_vec;
 905 extern const bfd_target x86_64_elf64_sol2_vec;
 906 extern const bfd_target x86_64_mach_o_vec;
 907 extern const bfd_target x86_64_pe_vec;
 908 extern const bfd_target x86_64_pe_be_vec;
 909 extern const bfd_target x86_64_pei_vec;
 910 extern const bfd_target xc16x_elf32_vec;
 911 extern const bfd_target xgate_elf32_vec;
 912 extern const bfd_target xstormy16_elf32_vec;
 913 extern const bfd_target xtensa_elf32_be_vec;
 914 extern const bfd_target xtensa_elf32_le_vec;
 915 extern const bfd_target z80_coff_vec;
 916 extern const bfd_target z8k_coff_vec;
 917
 918 /* These are always included.  */
 919 extern const bfd_target srec_vec;
 920 extern const bfd_target symbolsrec_vec;
 921 extern const bfd_target verilog_vec;
 922 extern const bfd_target tekhex_vec;
 923 extern const bfd_target binary_vec;
 924 extern const bfd_target ihex_vec;
 925
 926 /* All of the xvecs for core files.  */
 927 extern const bfd_target core_aix386_vec;
 928 extern const bfd_target core_cisco_be_vec;
 929 extern const bfd_target core_cisco_le_vec;
 930 extern const bfd_target core_hppabsd_vec;
 931 extern const bfd_target core_hpux_vec;
 932 extern const bfd_target core_irix_vec;
 933 extern const bfd_target core_netbsd_vec;
 934 extern const bfd_target core_osf_vec;
 935 extern const bfd_target core_ptrace_vec;
 936 extern const bfd_target core_sco5_vec;
 937 extern const bfd_target core_trad_vec;
 938
 939 static const bfd_target * const _bfd_target_vector[] =
 940 {
 941 #ifdef SELECT_VECS
 942
 943         SELECT_VECS,
 944
 945 #else /* not SELECT_VECS */
 946
 947 #ifdef DEFAULT_VECTOR
 948         &DEFAULT_VECTOR,
 949 #endif
 950         /* This list is alphabetized to make it easy to compare
 951            with other vector lists -- the decls above and
 952            the case statement in configure.ac.
 953            Try to keep it in order when adding new targets, and
 954            use a name of the form <cpu>_<format>_<other>_<endian>_vec.
 955            Note that sorting is done as if _<endian>_vec wasn't present.
 956            Vectors that don't compile on all systems, or aren't finished,
 957            should have an entry here with #if 0 around it, to show that
 958            it wasn't omitted by mistake.  */
 959 #ifdef BFD64
 960         &aarch64_elf32_be_vec,
 961         &aarch64_elf32_le_vec,
 962         &aarch64_elf64_be_vec,
 963         &aarch64_elf64_be_cloudabi_vec,
 964         &aarch64_elf64_le_vec,
 965         &aarch64_elf64_le_cloudabi_vec,
 966         &aarch64_mach_o_vec,
 967 #endif
 968
 969 #ifdef BFD64
 970         &alpha_ecoff_le_vec,
 971         &alpha_elf64_vec,
 972         &alpha_elf64_fbsd_vec,
 973         &alpha_nlm32_vec,
 974         &alpha_vms_vec,
 975 #endif
 976         &alpha_vms_lib_txt_vec,
 977
 978         &am33_elf32_linux_vec,
 979
 980         &aout0_be_vec,
 981 #ifdef BFD64
 982         &aout64_vec,    /* Only compiled if host has long-long support.  */
 983 #endif
 984 #if 0
 985         /* Since a.out files lack decent magic numbers, no way to recognize
 986            which kind of a.out file it is.  */
 987         &aout_vec,
 988 #endif
 989         &aout_adobe_vec,
 990
 991         &arc_elf32_be_vec,
 992         &arc_elf32_le_vec,
 993
 994 #if 0
 995         /* We have no way of distinguishing these from other a.out variants.  */
 996         &arm_aout_be_vec,
 997         &arm_aout_le_vec,
 998 #endif
 999         &arm_aout_nbsd_vec,
1000 #if 0
1001         /* We have no way of distinguishing these from other a.out variants.  */
1002         &arm_aout_riscix_vec,
1003 #endif
1004         &arm_coff_be_vec,
1005         &arm_coff_le_vec,
1006         &arm_elf32_be_vec,
1007         &arm_elf32_le_vec,
1008         &arm_elf32_symbian_be_vec,
1009         &arm_elf32_symbian_le_vec,
1010         &arm_elf32_vxworks_be_vec,
1011         &arm_elf32_vxworks_le_vec,
1012         &arm_mach_o_vec,
1013         &arm_pe_be_vec,
1014         &arm_pe_le_vec,
1015         &arm_pe_epoc_be_vec,
1016         &arm_pe_epoc_le_vec,
1017         &arm_pe_wince_be_vec,
1018         &arm_pe_wince_le_vec,
1019         &arm_pei_be_vec,
1020         &arm_pei_le_vec,
1021         &arm_pei_epoc_be_vec,
1022         &arm_pei_epoc_le_vec,
1023         &arm_pei_wince_be_vec,
1024         &arm_pei_wince_le_vec,
1025
1026         &avr_elf32_vec,
1027
1028         &bfin_elf32_vec,
1029         &bfin_elf32_fdpic_vec,
1030
1031         &bout_be_vec,
1032         &bout_le_vec,
1033
1034         &cr16_elf32_vec,
1035         &cr16c_elf32_vec,
1036
1037         &cris_aout_vec,
1038         &cris_elf32_vec,
1039         &cris_elf32_us_vec,
1040
1041         &crx_elf32_vec,
1042
1043         &d10v_elf32_vec,
1044         &d30v_elf32_vec,
1045
1046         &dlx_elf32_be_vec,
1047
1048         /* This, and other vectors, may not be used in any *.mt configuration.
1049            But that does not mean they are unnecessary.  If configured with
1050            --enable-targets=all, objdump or gdb should be able to examine
1051            the file even if we don't recognize the machine type.  */
1052         &elf32_be_vec,
1053         &elf32_le_vec,
1054 #ifdef BFD64
1055         &elf64_be_vec,
1056         &elf64_le_vec,
1057 #endif
1058
1059         &epiphany_elf32_vec,
1060
1061         &fr30_elf32_vec,
1062
1063         &frv_elf32_vec,
1064         &frv_elf32_fdpic_vec,
1065
1066         &h8300_coff_vec,
1067         &h8300_elf32_vec,
1068         &h8300_elf32_linux_vec,
1069         &h8500_coff_vec,
1070
1071         &hppa_elf32_vec,
1072         &hppa_elf32_linux_vec,
1073         &hppa_elf32_nbsd_vec,
1074 #ifdef BFD64
1075         &hppa_elf64_vec,
1076         &hppa_elf64_linux_vec,
1077 #endif
1078         &hppa_som_vec,
1079
1080         &i370_elf32_vec,
1081
1082         &i386_aout_vec,
1083         &i386_aout_bsd_vec,
1084 #if 0
1085         &i386_aout_dynix_vec,
1086 #endif
1087         &i386_aout_fbsd_vec,
1088 #if 0
1089         /* Since a.out files lack decent magic numbers, no way to recognize
1090            which kind of a.out file it is.  */
1091         &i386_aout_linux_vec,
1092 #endif
1093         &i386_aout_lynx_vec,
1094 #if 0
1095         /* No distinguishing features for Mach 3 executables.  */
1096         &i386_aout_mach3_vec,
1097 #endif
1098         &i386_aout_nbsd_vec,
1099         &i386_aout_os9k_vec,
1100         &i386_coff_vec,
1101         &i386_coff_go32_vec,
1102         &i386_coff_go32stubbed_vec,
1103         &i386_coff_lynx_vec,
1104         &i386_elf32_vec,
1105         &i386_elf32_fbsd_vec,
1106         &i386_elf32_nacl_vec,
1107         &i386_elf32_sol2_vec,
1108         &i386_elf32_vxworks_vec,
1109         &i386_mach_o_vec,
1110         &i386_msdos_vec,
1111         &i386_nlm32_vec,
1112         &i386_pe_vec,
1113         &i386_pei_vec,
1114
1115         &iamcu_elf32_vec,
1116
1117         &i860_coff_vec,
1118         &i860_elf32_vec,
1119         &i860_elf32_le_vec,
1120
1121         &i960_elf32_vec,
1122
1123 #ifdef BFD64
1124 #if 0
1125         &ia64_elf32_be_vec,
1126 #endif
1127         &ia64_elf32_hpux_be_vec,
1128         &ia64_elf64_be_vec,
1129         &ia64_elf64_le_vec,
1130         &ia64_elf64_hpux_be_vec,
1131         &ia64_elf64_vms_vec,
1132         &ia64_pei_vec,
1133 #endif
1134
1135         &icoff_be_vec,
1136         &icoff_le_vec,
1137
1138         &ieee_vec,
1139
1140         &ip2k_elf32_vec,
1141         &iq2000_elf32_vec,
1142
1143 #ifdef BFD64
1144         &k1om_elf64_vec,
1145         &k1om_elf64_fbsd_vec,
1146         &l1om_elf64_vec,
1147         &l1om_elf64_fbsd_vec,
1148 #endif
1149
1150         &lm32_elf32_vec,
1151
1152         &m32c_elf32_vec,
1153
1154         &m32r_elf32_vec,
1155         &m32r_elf32_le_vec,
1156         &m32r_elf32_linux_vec,
1157         &m32r_elf32_linux_le_vec,
1158
1159         &m68hc11_elf32_vec,
1160         &m68hc12_elf32_vec,
1161
1162 #if 0
1163         &m68k_aout_4knbsd_vec,
1164         /* Clashes with sparc_aout_sunos_be_vec magic no.  */
1165         &m68k_aout_hp300bsd_vec,
1166 #endif
1167         &m68k_aout_hp300hpux_vec,
1168 #if 0
1169         /* Since a.out files lack decent magic numbers, no way to recognize
1170            which kind of a.out file it is.  */
1171         &m68k_aout_linux_vec,
1172 #endif
1173         &m68k_aout_nbsd_vec,
1174         &m68k_aout_newsos3_vec,
1175         &m68k_coff_vec,
1176 #if 0
1177         &m68k_coff_apollo_vec,
1178         &m68k_coff_aux_vec,
1179 #endif
1180         &m68k_coff_sysv_vec,
1181         &m68k_coff_un_vec,
1182         &m68k_elf32_vec,
1183         &m68k_versados_vec,
1184
1185         &m88k_aout_mach3_vec,
1186         &m88k_aout_obsd_vec,
1187         &m88k_coff_bcs_vec,
1188         &m88k_elf32_vec,
1189
1190         &mach_o_be_vec,
1191         &mach_o_le_vec,
1192         &mach_o_fat_vec,
1193
1194         &mcore_elf32_be_vec,
1195         &mcore_elf32_le_vec,
1196         &mcore_pe_be_vec,
1197         &mcore_pe_le_vec,
1198         &mcore_pei_be_vec,
1199         &mcore_pei_le_vec,
1200
1201         &mep_elf32_vec,
1202
1203         &metag_elf32_vec,
1204
1205         &microblaze_elf32_vec,
1206
1207 #if 0
1208         /* No one seems to use this.  */
1209         &mips_aout_be_vec,
1210 #endif
1211         &mips_aout_le_vec,
1212         &mips_ecoff_be_vec,
1213         &mips_ecoff_le_vec,
1214         &mips_ecoff_bele_vec,
1215 #ifdef BFD64
1216         &mips_elf32_be_vec,
1217         &mips_elf32_le_vec,
1218         &mips_elf32_n_be_vec,
1219         &mips_elf32_n_le_vec,
1220         &mips_elf32_ntrad_be_vec,
1221         &mips_elf32_ntrad_le_vec,
1222         &mips_elf32_ntradfbsd_be_vec,
1223         &mips_elf32_ntradfbsd_le_vec,
1224         &mips_elf32_trad_be_vec,
1225         &mips_elf32_trad_le_vec,
1226         &mips_elf32_tradfbsd_be_vec,
1227         &mips_elf32_tradfbsd_le_vec,
1228         &mips_elf32_vxworks_be_vec,
1229         &mips_elf32_vxworks_le_vec,
1230         &mips_elf64_be_vec,
1231         &mips_elf64_le_vec,
1232         &mips_elf64_trad_be_vec,
1233         &mips_elf64_trad_le_vec,
1234         &mips_elf64_tradfbsd_be_vec,
1235         &mips_elf64_tradfbsd_le_vec,
1236 #endif
1237         &mips_pe_le_vec,
1238         &mips_pei_le_vec,
1239
1240 #ifdef BFD64
1241         &mmix_elf64_vec,
1242         &mmix_mmo_vec,
1243 #endif
1244
1245         &mn10200_elf32_vec,
1246         &mn10300_elf32_vec,
1247
1248         &moxie_elf32_be_vec,
1249         &moxie_elf32_le_vec,
1250
1251         &msp430_elf32_vec,
1252         &msp430_elf32_ti_vec,
1253
1254         &mt_elf32_vec,
1255
1256         &nds32_elf32_be_vec,
1257         &nds32_elf32_le_vec,
1258         &nds32_elf32_linux_be_vec,
1259         &nds32_elf32_linux_le_vec,
1260
1261         &nios2_elf32_be_vec,
1262         &nios2_elf32_le_vec,
1263
1264         &ns32k_aout_pc532mach_vec,
1265         &ns32k_aout_pc532nbsd_vec,
1266
1267 #if 0
1268         /* We have no oasys tools anymore, so we can't test any of this
1269            anymore. If you want to test the stuff yourself, go ahead...
1270            steve@cygnus.com
1271            Worse, since there is no magic number for archives, there
1272            can be annoying target mis-matches.  */
1273         &oasys_vec,
1274 #endif
1275
1276         &or1k_elf32_vec,
1277
1278         &pdp11_aout_vec,
1279
1280         &pef_vec,
1281         &pef_xlib_vec,
1282
1283         &pj_elf32_vec,
1284         &pj_elf32_le_vec,
1285
1286 #if BFD_SUPPORTS_PLUGINS
1287         &plugin_vec,
1288 #endif
1289
1290         &powerpc_boot_vec,
1291         &powerpc_elf32_vec,
1292         &powerpc_elf32_le_vec,
1293         &powerpc_elf32_fbsd_vec,
1294         &powerpc_elf32_vxworks_vec,
1295 #ifdef BFD64
1296         &powerpc_elf64_vec,
1297         &powerpc_elf64_le_vec,
1298         &powerpc_elf64_fbsd_vec,
1299 #endif
1300         &powerpc_nlm32_vec,
1301         &powerpc_pe_vec,
1302         &powerpc_pe_le_vec,
1303         &powerpc_pei_vec,
1304         &powerpc_pei_le_vec,
1305 #if 0
1306         /* This has the same magic number as RS/6000.  */
1307         &powerpc_xcoff_vec,
1308 #endif
1309
1310         &pru_elf32_vec,
1311
1312 #ifdef BFD64
1313         &riscv_elf32_vec,
1314         &riscv_elf64_vec,
1315 #endif
1316         &rl78_elf32_vec,
1317
1318 #ifdef BFD64
1319         &rs6000_xcoff64_vec,
1320         &rs6000_xcoff64_aix_vec,
1321 #endif
1322         &rs6000_xcoff_vec,
1323
1324         &rx_elf32_be_vec,
1325         &rx_elf32_be_ns_vec,
1326         &rx_elf32_le_vec,
1327
1328         &s390_elf32_vec,
1329 #ifdef BFD64
1330         &s390_elf64_vec,
1331 #endif
1332
1333 #ifdef BFD64
1334         &score_elf32_be_vec,
1335         &score_elf32_le_vec,
1336 #endif
1337
1338 #ifdef BFD64
1339         &sh64_elf32_vec,
1340         &sh64_elf32_le_vec,
1341         &sh64_elf32_linux_vec,
1342         &sh64_elf32_linux_be_vec,
1343         &sh64_elf32_nbsd_vec,
1344         &sh64_elf32_nbsd_le_vec,
1345         &sh64_elf64_vec,
1346         &sh64_elf64_le_vec,
1347         &sh64_elf64_linux_vec,
1348         &sh64_elf64_linux_be_vec,
1349         &sh64_elf64_nbsd_vec,
1350         &sh64_elf64_nbsd_le_vec,
1351 #endif
1352         &sh_coff_vec,
1353         &sh_coff_le_vec,
1354         &sh_coff_small_vec,
1355         &sh_coff_small_le_vec,
1356         &sh_elf32_vec,
1357         &sh_elf32_le_vec,
1358         &sh_elf32_fdpic_be_vec,
1359         &sh_elf32_fdpic_le_vec,
1360         &sh_elf32_linux_vec,
1361         &sh_elf32_linux_be_vec,
1362         &sh_elf32_nbsd_vec,
1363         &sh_elf32_nbsd_le_vec,
1364         &sh_elf32_symbian_le_vec,
1365         &sh_elf32_vxworks_vec,
1366         &sh_elf32_vxworks_le_vec,
1367         &sh_pe_le_vec,
1368         &sh_pei_le_vec,
1369
1370         &sparc_aout_le_vec,
1371         &sparc_aout_linux_vec,
1372         &sparc_aout_lynx_vec,
1373         &sparc_aout_nbsd_vec,
1374         &sparc_aout_sunos_be_vec,
1375         &sparc_coff_vec,
1376         &sparc_coff_lynx_vec,
1377         &sparc_elf32_vec,
1378         &sparc_elf32_sol2_vec,
1379         &sparc_elf32_vxworks_vec,
1380 #ifdef BFD64
1381         &sparc_elf64_vec,
1382         &sparc_elf64_fbsd_vec,
1383         &sparc_elf64_sol2_vec,
1384 #endif
1385         &sparc_nlm32_vec,
1386
1387         &spu_elf32_vec,
1388
1389         &sym_vec,
1390
1391         &tic30_aout_vec,
1392         &tic30_coff_vec,
1393         &tic54x_coff0_beh_vec,
1394         &tic54x_coff0_vec,
1395         &tic54x_coff1_beh_vec,
1396         &tic54x_coff1_vec,
1397         &tic54x_coff2_beh_vec,
1398         &tic54x_coff2_vec,
1399         &tic6x_elf32_be_vec,
1400         &tic6x_elf32_le_vec,
1401         &tic80_coff_vec,
1402
1403         &tilegx_elf32_be_vec,
1404         &tilegx_elf32_le_vec,
1405 #ifdef BFD64
1406         &tilegx_elf64_be_vec,
1407         &tilegx_elf64_le_vec,
1408 #endif
1409         &tilepro_elf32_vec,
1410
1411         &ft32_elf32_vec,
1412
1413         &v800_elf32_vec,
1414         &v850_elf32_vec,
1415
1416         &vax_aout_1knbsd_vec,
1417         &vax_aout_bsd_vec,
1418         &vax_aout_nbsd_vec,
1419         &vax_elf32_vec,
1420
1421         &visium_elf32_vec,
1422
1423         &w65_coff_vec,
1424
1425         &wasm32_elf32_vec,
1426
1427         &we32k_coff_vec,
1428
1429 #ifdef BFD64
1430         &x86_64_coff_vec,
1431         &x86_64_elf32_vec,
1432         &x86_64_elf32_nacl_vec,
1433         &x86_64_elf64_vec,
1434         &x86_64_elf64_cloudabi_vec,
1435         &x86_64_elf64_fbsd_vec,
1436         &x86_64_elf64_nacl_vec,
1437         &x86_64_elf64_sol2_vec,
1438         &x86_64_mach_o_vec,
1439         &x86_64_pe_vec,
1440         &x86_64_pe_be_vec,
1441         &x86_64_pei_vec,
1442 #endif
1443
1444         &xc16x_elf32_vec,
1445
1446         &xgate_elf32_vec,
1447
1448         &xstormy16_elf32_vec,
1449
1450         &xtensa_elf32_be_vec,
1451         &xtensa_elf32_le_vec,
1452
1453         &z80_coff_vec,
1454
1455         &z8k_coff_vec,
1456 #endif /* not SELECT_VECS */
1457
1458 /* Always support S-records, for convenience.  */
1459         &srec_vec,
1460         &symbolsrec_vec,
1461 /* And verilog.  */
1462         &verilog_vec,
1463 /* And tekhex */
1464         &tekhex_vec,
1465 /* Likewise for binary output.  */
1466         &binary_vec,
1467 /* Likewise for ihex.  */
1468         &ihex_vec,
1469
1470 /* Add any required traditional-core-file-handler.  */
1471
1472 #ifdef AIX386_CORE
1473         &core_aix386_vec,
1474 #endif
1475 #if 0
1476         /* We don't include cisco_core_*_vec.  Although it has a magic number,
1477            the magic number isn't at the beginning of the file, and thus
1478            might spuriously match other kinds of files.  */
1479         &core_cisco_be_vec,
1480         &core_cisco_le_vec,
1481 #endif
1482 #ifdef HPPABSD_CORE
1483         &core_hppabsd_vec,
1484 #endif
1485 #ifdef HPUX_CORE
1486         &core_hpux_vec,
1487 #endif
1488 #ifdef IRIX_CORE
1489         &core_irix_vec,
1490 #endif
1491 #ifdef NETBSD_CORE
1492         &core_netbsd_vec,
1493 #endif
1494 #ifdef OSF_CORE
1495         &core_osf_vec,
1496 #endif
1497 #ifdef PTRACE_CORE
1498         &core_ptrace_vec,
1499 #endif
1500 #ifdef SCO5_CORE
1501         &core_sco5_vec,
1502 #endif
1503 #ifdef TRAD_CORE
1504         &core_trad_vec,
1505 #endif
1506
1507         NULL /* end of list marker */
1508 };
1509 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1510
1511 /* bfd_default_vector[0] contains either the address of the default vector,
1512    if there is one, or zero if there isn't.  */
1513
1514 const bfd_target *bfd_default_vector[] = {
1515 #ifdef DEFAULT_VECTOR
1516         &DEFAULT_VECTOR,
1517 #endif
1518         NULL
1519 };
1520
1521 /* bfd_associated_vector[] contains the associated target vectors used
1522    to reduce the ambiguity in bfd_check_format_matches.  */
1523
1524 static const bfd_target *_bfd_associated_vector[] = {
1525 #ifdef ASSOCIATED_VECS
1526         ASSOCIATED_VECS,
1527 #endif
1528         NULL
1529 };
1530 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
1531
1532 /* When there is an ambiguous match, bfd_check_format_matches puts the
1533    names of the matching targets in an array.  This variable is the maximum
1534    number of entries that the array could possibly need.  */
1535 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1536 \f
1537 /* This array maps configuration triplets onto BFD vectors.  */
1538
1539 struct targmatch
1540 {
1541   /* The configuration triplet.  */
1542   const char *triplet;
1543   /* The BFD vector.  If this is NULL, then the vector is found by
1544      searching forward for the next structure with a non NULL vector
1545      field.  */
1546   const bfd_target *vector;
1547 };
1548
1549 /* targmatch.h is built by Makefile out of config.bfd.  */
1550 static const struct targmatch bfd_target_match[] = {
1551 #include "targmatch.h"
1552   { NULL, NULL }
1553 };
1554
1555 /* Find a target vector, given a name or configuration triplet.  */
1556
1557 static const bfd_target *
1558 find_target (const char *name)
1559 {
1560   const bfd_target * const *target;
1561   const struct targmatch *match;
1562
1563   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1564     if (strcmp (name, (*target)->name) == 0)
1565       return *target;
1566
1567   /* If we couldn't match on the exact name, try matching on the
1568      configuration triplet.  FIXME: We should run the triplet through
1569      config.sub first, but that is hard.  */
1570   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1571     {
1572       if (fnmatch (match->triplet, name, 0) == 0)
1573         {
1574           while (match->vector == NULL)
1575             ++match;
1576           return match->vector;
1577         }
1578     }
1579
1580   bfd_set_error (bfd_error_invalid_target);
1581   return NULL;
1582 }
1583
1584 /*
1585 FUNCTION
1586         bfd_set_default_target
1587
1588 SYNOPSIS
1589         bfd_boolean bfd_set_default_target (const char *name);
1590
1591 DESCRIPTION
1592         Set the default target vector to use when recognizing a BFD.
1593         This takes the name of the target, which may be a BFD target
1594         name or a configuration triplet.
1595 */
1596
1597 bfd_boolean
1598 bfd_set_default_target (const char *name)
1599 {
1600   const bfd_target *target;
1601
1602   if (bfd_default_vector[0] != NULL
1603       && strcmp (name, bfd_default_vector[0]->name) == 0)
1604     return TRUE;
1605
1606   target = find_target (name);
1607   if (target == NULL)
1608     return FALSE;
1609
1610   bfd_default_vector[0] = target;
1611   return TRUE;
1612 }
1613
1614 /*
1615 FUNCTION
1616         bfd_find_target
1617
1618 SYNOPSIS
1619         const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1620
1621 DESCRIPTION
1622         Return a pointer to the transfer vector for the object target
1623         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1624         choose the one in the environment variable <<GNUTARGET>>; if
1625         that is null or not defined, then choose the first entry in the
1626         target list.  Passing in the string "default" or setting the
1627         environment variable to "default" will cause the first entry in
1628         the target list to be returned, and "target_defaulted" will be
1629         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1630         <<bfd_check_format>> to loop over all the targets to find the
1631         one that matches the file being read.
1632 */
1633
1634 const bfd_target *
1635 bfd_find_target (const char *target_name, bfd *abfd)
1636 {
1637   const char *targname;
1638   const bfd_target *target;
1639
1640   if (target_name != NULL)
1641     targname = target_name;
1642   else
1643     targname = getenv ("GNUTARGET");
1644
1645   /* This is safe; the vector cannot be null.  */
1646   if (targname == NULL || strcmp (targname, "default") == 0)
1647     {
1648       if (bfd_default_vector[0] != NULL)
1649         target = bfd_default_vector[0];
1650       else
1651         target = bfd_target_vector[0];
1652       if (abfd)
1653         {
1654           abfd->xvec = target;
1655           abfd->target_defaulted = TRUE;
1656         }
1657       return target;
1658     }
1659
1660   if (abfd)
1661     abfd->target_defaulted = FALSE;
1662
1663   target = find_target (targname);
1664   if (target == NULL)
1665     return NULL;
1666
1667   if (abfd)
1668     abfd->xvec = target;
1669   return target;
1670 }
1671
1672 /* Helper function for bfd_get_target_info to determine the target's
1673    architecture.  This method handles bfd internal target names as
1674    tuples and triplets.  */
1675 static bfd_boolean
1676 _bfd_find_arch_match (const char *tname, const char **arch,
1677                       const char **def_target_arch)
1678 {
1679   if (!arch)
1680     return FALSE;
1681
1682   while (*arch != NULL)
1683     {
1684       const char *in_a = strstr (*arch, tname);
1685       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1686
1687       if (in_a && (in_a == *arch || in_a[-1] == ':')
1688           && end_ch == 0)
1689         {
1690           *def_target_arch = *arch;
1691           return TRUE;
1692         }
1693       arch++;
1694     }
1695   return FALSE;
1696 }
1697
1698 /*
1699 FUNCTION
1700         bfd_get_target_info
1701 SYNOPSIS
1702         const bfd_target *bfd_get_target_info (const char *target_name,
1703                                                bfd *abfd,
1704                                                bfd_boolean *is_bigendian,
1705                                                int *underscoring,
1706                                                const char **def_target_arch);
1707 DESCRIPTION
1708         Return a pointer to the transfer vector for the object target
1709         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1710         choose the one in the environment variable <<GNUTARGET>>; if
1711         that is null or not defined, then choose the first entry in the
1712         target list.  Passing in the string "default" or setting the
1713         environment variable to "default" will cause the first entry in
1714         the target list to be returned, and "target_defaulted" will be
1715         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1716         <<bfd_check_format>> to loop over all the targets to find the
1717         one that matches the file being read.
1718         If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1719         endian mode. True for big-endian, FALSE for little-endian or for
1720         invalid target.
1721         If @var{underscoring} is not <<NULL>>, then set this value to target's
1722         underscoring mode. Zero for none-underscoring, -1 for invalid target,
1723         else the value of target vector's symbol underscoring.
1724         If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1725         string specified by the target_name.
1726 */
1727 const bfd_target *
1728 bfd_get_target_info (const char *target_name, bfd *abfd,
1729                      bfd_boolean *is_bigendian,
1730                      int *underscoring, const char **def_target_arch)
1731 {
1732   const bfd_target *target_vec;
1733
1734   if (is_bigendian)
1735     *is_bigendian = FALSE;
1736   if (underscoring)
1737     *underscoring = -1;
1738   if (def_target_arch)
1739     *def_target_arch = NULL;
1740   target_vec = bfd_find_target (target_name, abfd);
1741   if (! target_vec)
1742     return NULL;
1743   if (is_bigendian)
1744     *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
1745                                                                : FALSE);
1746   if (underscoring)
1747     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1748
1749   if (def_target_arch)
1750     {
1751       const char *tname = target_vec->name;
1752       const char **arches = bfd_arch_list ();
1753
1754       if (arches && tname)
1755         {
1756           char *hyp = strchr (tname, '-');
1757
1758           if (hyp != NULL)
1759             {
1760               tname = ++hyp;
1761
1762               /* Make sure we detect architecture names
1763                  for triplets like "pe-arm-wince-little".  */
1764               if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1765                 {
1766                   char new_tname[50];
1767
1768                   strcpy (new_tname, hyp);
1769                   while ((hyp = strrchr (new_tname, '-')) != NULL)
1770                     {
1771                       *hyp = 0;
1772                       if (_bfd_find_arch_match (new_tname, arches,
1773                                                 def_target_arch))
1774                         break;
1775                     }
1776                 }
1777             }
1778           else
1779             _bfd_find_arch_match (tname, arches, def_target_arch);
1780         }
1781
1782       if (arches)
1783         free (arches);
1784     }
1785   return target_vec;
1786 }
1787
1788 /*
1789 FUNCTION
1790         bfd_target_list
1791
1792 SYNOPSIS
1793         const char ** bfd_target_list (void);
1794
1795 DESCRIPTION
1796         Return a freshly malloced NULL-terminated
1797         vector of the names of all the valid BFD targets. Do not
1798         modify the names.
1799
1800 */
1801
1802 const char **
1803 bfd_target_list (void)
1804 {
1805   int vec_length = 0;
1806   bfd_size_type amt;
1807   const bfd_target * const *target;
1808   const  char **name_list, **name_ptr;
1809
1810   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1811     vec_length++;
1812
1813   amt = (vec_length + 1) * sizeof (char **);
1814   name_ptr = name_list = (const  char **) bfd_malloc (amt);
1815
1816   if (name_list == NULL)
1817     return NULL;
1818
1819   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1820     if (target == &bfd_target_vector[0]
1821         || *target != bfd_target_vector[0])
1822       *name_ptr++ = (*target)->name;
1823
1824   *name_ptr = NULL;
1825   return name_list;
1826 }
1827
1828 /*
1829 FUNCTION
1830         bfd_iterate_over_targets
1831
1832 SYNOPSIS
1833         const bfd_target *bfd_iterate_over_targets
1834           (int (*func) (const bfd_target *, void *),
1835            void *data);
1836
1837 DESCRIPTION
1838         Call @var{func} for each target in the list of BFD target
1839         vectors, passing @var{data} to @var{func}.  Stop iterating if
1840         @var{func} returns a non-zero result, and return that target
1841         vector.  Return NULL if @var{func} always returns zero.
1842 */
1843
1844 const bfd_target *
1845 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
1846                           void *data)
1847 {
1848   const bfd_target *const *target;
1849
1850   for (target = bfd_target_vector; *target != NULL; ++target)
1851     if (func (*target, data))
1852       return *target;
1853
1854   return NULL;
1855 }
1856
1857 /*
1858 FUNCTION
1859         bfd_flavour_name
1860
1861 SYNOPSIS
1862         const char *bfd_flavour_name (enum bfd_flavour flavour);
1863
1864 DESCRIPTION
1865         Return the string form of @var{flavour}.
1866 */
1867
1868 const char *
1869 bfd_flavour_name (enum bfd_flavour flavour)
1870 {
1871   switch (flavour)
1872     {
1873     case bfd_target_unknown_flavour: return "unknown file format";
1874     case bfd_target_aout_flavour: return "a.out";
1875     case bfd_target_coff_flavour: return "COFF";
1876     case bfd_target_ecoff_flavour: return "ECOFF";
1877     case bfd_target_xcoff_flavour: return "XCOFF";
1878     case bfd_target_elf_flavour: return "ELF";
1879     case bfd_target_ieee_flavour: return "IEEE";
1880     case bfd_target_nlm_flavour: return "NLM";
1881     case bfd_target_oasys_flavour: return "Oasys";
1882     case bfd_target_tekhex_flavour: return "Tekhex";
1883     case bfd_target_srec_flavour: return "Srec";
1884     case bfd_target_verilog_flavour: return "Verilog";
1885     case bfd_target_ihex_flavour: return "Ihex";
1886     case bfd_target_som_flavour: return "SOM";
1887     case bfd_target_os9k_flavour: return "OS9K";
1888     case bfd_target_versados_flavour: return "Versados";
1889     case bfd_target_msdos_flavour: return "MSDOS";
1890     case bfd_target_ovax_flavour: return "Ovax";
1891     case bfd_target_evax_flavour: return "Evax";
1892     case bfd_target_mmo_flavour: return "mmo";
1893     case bfd_target_mach_o_flavour: return "MACH_O";
1894     case bfd_target_pef_flavour: return "PEF";
1895     case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
1896     case bfd_target_sym_flavour: return "SYM";
1897     /* There is no "default" case here so that -Wswitch (part of -Wall)
1898        catches missing entries.  */
1899     }
1900
1901   abort ();
1902 }