bfd/targets.c

   1 /* Generic target-file-type support for the BFD library.
   2    Copyright (C) 1990-2015 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##_get_symbol_version_string, \
 367 .  NAME##_bfd_is_local_label_name, \
 368 .  NAME##_bfd_is_target_special_symbol, \
 369 .  NAME##_get_lineno, \
 370 .  NAME##_find_nearest_line, \
 371 .  NAME##_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 .  const char *(*_bfd_get_symbol_version_string)
 389 .    (bfd *, struct bfd_symbol *, bfd_boolean *);
 390 .#define bfd_get_symbol_version_string(b,s,h) BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h))
 391 .  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
 392 .  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
 393 .  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
 394 .  bfd_boolean (*_bfd_find_nearest_line)
 395 .    (bfd *, struct bfd_symbol **, struct bfd_section *, 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_add_symbols, \
 450 .  NAME##_bfd_link_just_syms, \
 451 .  NAME##_bfd_copy_link_hash_symbol_type, \
 452 .  NAME##_bfd_final_link, \
 453 .  NAME##_bfd_link_split_section, \
 454 .  NAME##_bfd_gc_sections, \
 455 .  NAME##_bfd_lookup_section_flags, \
 456 .  NAME##_bfd_merge_sections, \
 457 .  NAME##_bfd_is_group_section, \
 458 .  NAME##_bfd_discard_group, \
 459 .  NAME##_section_already_linked, \
 460 .  NAME##_bfd_define_common_symbol
 461 .
 462 .  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
 463 .  bfd_byte *  (*_bfd_get_relocated_section_contents)
 464 .    (bfd *, struct bfd_link_info *, struct bfd_link_order *,
 465 .     bfd_byte *, bfd_boolean, struct bfd_symbol **);
 466 .
 467 .  bfd_boolean (*_bfd_relax_section)
 468 .    (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
 469 .
 470 .  {* Create a hash table for the linker.  Different backends store
 471 .     different information in this table.  *}
 472 .  struct bfd_link_hash_table *
 473 .              (*_bfd_link_hash_table_create) (bfd *);
 474 .
 475 .  {* Add symbols from this object file into the hash table.  *}
 476 .  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
 477 .
 478 .  {* Indicate that we are only retrieving symbol values from this section.  *}
 479 .  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
 480 .
 481 .  {* Copy the symbol type and other attributes for a linker script
 482 .     assignment of one symbol to another.  *}
 483 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
 484 .  BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
 485 .  void (*_bfd_copy_link_hash_symbol_type)
 486 .    (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
 487 .
 488 .  {* Do a link based on the link_order structures attached to each
 489 .     section of the BFD.  *}
 490 .  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
 491 .
 492 .  {* Should this section be split up into smaller pieces during linking.  *}
 493 .  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
 494 .
 495 .  {* Remove sections that are not referenced from the output.  *}
 496 .  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
 497 .
 498 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
 499 .  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
 500 .                                            struct flag_info *,
 501 .                                            asection *);
 502 .
 503 .  {* Attempt to merge SEC_MERGE sections.  *}
 504 .  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
 505 .
 506 .  {* Is this section a member of a group?  *}
 507 .  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
 508 .
 509 .  {* Discard members of a group.  *}
 510 .  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
 511 .
 512 .  {* Check if SEC has been already linked during a reloceatable or
 513 .     final link.  *}
 514 .  bfd_boolean (*_section_already_linked) (bfd *, asection *,
 515 .                                          struct bfd_link_info *);
 516 .
 517 .  {* Define a common symbol.  *}
 518 .  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
 519 .                                            struct bfd_link_hash_entry *);
 520 .
 521 .  {* Routines to handle dynamic symbols and relocs.  *}
 522 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
 523 .  NAME##_get_dynamic_symtab_upper_bound, \
 524 .  NAME##_canonicalize_dynamic_symtab, \
 525 .  NAME##_get_synthetic_symtab, \
 526 .  NAME##_get_dynamic_reloc_upper_bound, \
 527 .  NAME##_canonicalize_dynamic_reloc
 528 .
 529 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
 530 .  long        (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
 531 .  {* Read in the dynamic symbols.  *}
 532 .  long        (*_bfd_canonicalize_dynamic_symtab)
 533 .    (bfd *, struct bfd_symbol **);
 534 .  {* Create synthetized symbols.  *}
 535 .  long        (*_bfd_get_synthetic_symtab)
 536 .    (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **,
 537 .     struct bfd_symbol **);
 538 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
 539 .  long        (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
 540 .  {* Read in the dynamic relocs.  *}
 541 .  long        (*_bfd_canonicalize_dynamic_reloc)
 542 .    (bfd *, arelent **, struct bfd_symbol **);
 543 .
 544
 545 A pointer to an alternative bfd_target in case the current one is not
 546 satisfactory.  This can happen when the target cpu supports both big
 547 and little endian code, and target chosen by the linker has the wrong
 548 endianness.  The function open_output() in ld/ldlang.c uses this field
 549 to find an alternative output format that is suitable.
 550
 551 .  {* Opposite endian version of this target.  *}
 552 .  const struct bfd_target * alternative_target;
 553 .
 554
 555 .  {* Data for use by back-end routines, which isn't
 556 .     generic enough to belong in this structure.  *}
 557 .  const void *backend_data;
 558 .
 559 .} bfd_target;
 560 .
 561 */
 562
 563 /* All known xvecs (even those that don't compile on all systems).
 564    Alphabetized for easy reference.
 565    They are listed a second time below, since
 566    we can't intermix extern's and initializers.  */
 567 extern const bfd_target aarch64_elf32_be_vec;
 568 extern const bfd_target aarch64_elf32_le_vec;
 569 extern const bfd_target aarch64_elf64_be_vec;
 570 extern const bfd_target aarch64_elf64_le_vec;
 571 extern const bfd_target alpha_ecoff_le_vec;
 572 extern const bfd_target alpha_elf64_vec;
 573 extern const bfd_target alpha_elf64_fbsd_vec;
 574 extern const bfd_target alpha_nlm32_vec;
 575 extern const bfd_target alpha_vms_vec;
 576 extern const bfd_target alpha_vms_lib_txt_vec;
 577 extern const bfd_target am33_elf32_linux_vec;
 578 extern const bfd_target aout0_be_vec;
 579 extern const bfd_target aout64_vec;
 580 extern const bfd_target aout_vec;
 581 extern const bfd_target aout_adobe_vec;
 582 extern const bfd_target arc_elf32_be_vec;
 583 extern const bfd_target arc_elf32_le_vec;
 584 extern const bfd_target arm_aout_be_vec;
 585 extern const bfd_target arm_aout_le_vec;
 586 extern const bfd_target arm_aout_nbsd_vec;
 587 extern const bfd_target arm_aout_riscix_vec;
 588 extern const bfd_target arm_coff_be_vec;
 589 extern const bfd_target arm_coff_le_vec;
 590 extern const bfd_target arm_elf32_be_vec;
 591 extern const bfd_target arm_elf32_le_vec;
 592 extern const bfd_target arm_elf32_nacl_be_vec;
 593 extern const bfd_target arm_elf32_nacl_le_vec;
 594 extern const bfd_target arm_elf32_symbian_be_vec;
 595 extern const bfd_target arm_elf32_symbian_le_vec;
 596 extern const bfd_target arm_elf32_vxworks_be_vec;
 597 extern const bfd_target arm_elf32_vxworks_le_vec;
 598 extern const bfd_target arm_pe_be_vec;
 599 extern const bfd_target arm_pe_le_vec;
 600 extern const bfd_target arm_pe_epoc_be_vec;
 601 extern const bfd_target arm_pe_epoc_le_vec;
 602 extern const bfd_target arm_pe_wince_be_vec;
 603 extern const bfd_target arm_pe_wince_le_vec;
 604 extern const bfd_target arm_pei_be_vec;
 605 extern const bfd_target arm_pei_le_vec;
 606 extern const bfd_target arm_pei_epoc_be_vec;
 607 extern const bfd_target arm_pei_epoc_le_vec;
 608 extern const bfd_target arm_pei_wince_be_vec;
 609 extern const bfd_target arm_pei_wince_le_vec;
 610 extern const bfd_target avr_elf32_vec;
 611 extern const bfd_target bfin_elf32_vec;
 612 extern const bfd_target bfin_elf32_fdpic_vec;
 613 extern const bfd_target bout_be_vec;
 614 extern const bfd_target bout_le_vec;
 615 extern const bfd_target cr16_elf32_vec;
 616 extern const bfd_target cr16c_elf32_vec;
 617 extern const bfd_target cris_aout_vec;
 618 extern const bfd_target cris_elf32_vec;
 619 extern const bfd_target cris_elf32_us_vec;
 620 extern const bfd_target crx_elf32_vec;
 621 extern const bfd_target d10v_elf32_vec;
 622 extern const bfd_target d30v_elf32_vec;
 623 extern const bfd_target dlx_elf32_be_vec;
 624 extern const bfd_target elf32_be_vec;
 625 extern const bfd_target elf32_le_vec;
 626 extern const bfd_target elf64_be_vec;
 627 extern const bfd_target elf64_le_vec;
 628 extern const bfd_target epiphany_elf32_vec;
 629 extern const bfd_target fr30_elf32_vec;
 630 extern const bfd_target frv_elf32_vec;
 631 extern const bfd_target frv_elf32_fdpic_vec;
 632 extern const bfd_target h8300_coff_vec;
 633 extern const bfd_target h8300_elf32_vec;
 634 extern const bfd_target h8500_coff_vec;
 635 extern const bfd_target hppa_elf32_vec;
 636 extern const bfd_target hppa_elf32_linux_vec;
 637 extern const bfd_target hppa_elf32_nbsd_vec;
 638 extern const bfd_target hppa_elf64_vec;
 639 extern const bfd_target hppa_elf64_linux_vec;
 640 extern const bfd_target hppa_som_vec;
 641 extern const bfd_target i370_elf32_vec;
 642 extern const bfd_target i386_aout_vec;
 643 extern const bfd_target i386_aout_bsd_vec;
 644 extern const bfd_target i386_aout_dynix_vec;
 645 extern const bfd_target i386_aout_fbsd_vec;
 646 extern const bfd_target i386_aout_linux_vec;
 647 extern const bfd_target i386_aout_lynx_vec;
 648 extern const bfd_target i386_aout_mach3_vec;
 649 extern const bfd_target i386_aout_nbsd_vec;
 650 extern const bfd_target i386_aout_os9k_vec;
 651 extern const bfd_target i386_coff_vec;
 652 extern const bfd_target i386_coff_go32_vec;
 653 extern const bfd_target i386_coff_go32stubbed_vec;
 654 extern const bfd_target i386_coff_lynx_vec;
 655 extern const bfd_target i386_elf32_vec;
 656 extern const bfd_target i386_elf32_fbsd_vec;
 657 extern const bfd_target i386_elf32_nacl_vec;
 658 extern const bfd_target i386_elf32_sol2_vec;
 659 extern const bfd_target i386_elf32_vxworks_vec;
 660 extern const bfd_target i386_mach_o_vec;
 661 extern const bfd_target i386_msdos_vec;
 662 extern const bfd_target i386_nlm32_vec;
 663 extern const bfd_target i386_pe_vec;
 664 extern const bfd_target i386_pei_vec;
 665 extern const bfd_target i860_coff_vec;
 666 extern const bfd_target i860_elf32_vec;
 667 extern const bfd_target i860_elf32_le_vec;
 668 extern const bfd_target i960_elf32_vec;
 669 extern const bfd_target ia64_elf32_be_vec;
 670 extern const bfd_target ia64_elf32_hpux_be_vec;
 671 extern const bfd_target ia64_elf64_be_vec;
 672 extern const bfd_target ia64_elf64_le_vec;
 673 extern const bfd_target ia64_elf64_hpux_be_vec;
 674 extern const bfd_target ia64_elf64_vms_vec;
 675 extern const bfd_target ia64_pei_vec;
 676 extern const bfd_target icoff_be_vec;
 677 extern const bfd_target icoff_le_vec;
 678 extern const bfd_target ieee_vec;
 679 extern const bfd_target ip2k_elf32_vec;
 680 extern const bfd_target iq2000_elf32_vec;
 681 extern const bfd_target k1om_elf64_vec;
 682 extern const bfd_target k1om_elf64_fbsd_vec;
 683 extern const bfd_target l1om_elf64_vec;
 684 extern const bfd_target l1om_elf64_fbsd_vec;
 685 extern const bfd_target lm32_elf32_vec;
 686 extern const bfd_target lm32_elf32_fdpic_vec;
 687 extern const bfd_target m32c_elf32_vec;
 688 extern const bfd_target m32r_elf32_vec;
 689 extern const bfd_target m32r_elf32_le_vec;
 690 extern const bfd_target m32r_elf32_linux_vec;
 691 extern const bfd_target m32r_elf32_linux_le_vec;
 692 extern const bfd_target m68hc11_elf32_vec;
 693 extern const bfd_target m68hc12_elf32_vec;
 694 extern const bfd_target m68k_aout_4knbsd_vec;
 695 extern const bfd_target m68k_aout_hp300bsd_vec;
 696 extern const bfd_target m68k_aout_hp300hpux_vec;
 697 extern const bfd_target m68k_aout_linux_vec;
 698 extern const bfd_target m68k_aout_nbsd_vec;
 699 extern const bfd_target m68k_aout_newsos3_vec;
 700 extern const bfd_target m68k_coff_vec;
 701 extern const bfd_target m68k_coff_apollo_vec;
 702 extern const bfd_target m68k_coff_aux_vec;
 703 extern const bfd_target m68k_coff_sysv_vec;
 704 extern const bfd_target m68k_coff_un_vec;
 705 extern const bfd_target m68k_elf32_vec;
 706 extern const bfd_target m68k_versados_vec;
 707 extern const bfd_target m88k_aout_mach3_vec;
 708 extern const bfd_target m88k_aout_obsd_vec;
 709 extern const bfd_target m88k_coff_bcs_vec;
 710 extern const bfd_target m88k_elf32_vec;
 711 extern const bfd_target mach_o_be_vec;
 712 extern const bfd_target mach_o_le_vec;
 713 extern const bfd_target mach_o_fat_vec;
 714 extern const bfd_target mcore_elf32_be_vec;
 715 extern const bfd_target mcore_elf32_le_vec;
 716 extern const bfd_target mcore_pe_be_vec;
 717 extern const bfd_target mcore_pe_le_vec;
 718 extern const bfd_target mcore_pei_be_vec;
 719 extern const bfd_target mcore_pei_le_vec;
 720 extern const bfd_target mep_elf32_vec;
 721 extern const bfd_target mep_elf32_le_vec;
 722 extern const bfd_target metag_elf32_vec;
 723 extern const bfd_target microblaze_elf32_vec;
 724 extern const bfd_target microblaze_elf32_le_vec;
 725 extern const bfd_target mips_aout_be_vec;
 726 extern const bfd_target mips_aout_le_vec;
 727 extern const bfd_target mips_ecoff_be_vec;
 728 extern const bfd_target mips_ecoff_le_vec;
 729 extern const bfd_target mips_ecoff_bele_vec;
 730 extern const bfd_target mips_elf32_be_vec;
 731 extern const bfd_target mips_elf32_le_vec;
 732 extern const bfd_target mips_elf32_n_be_vec;
 733 extern const bfd_target mips_elf32_n_le_vec;
 734 extern const bfd_target mips_elf32_ntrad_be_vec;
 735 extern const bfd_target mips_elf32_ntrad_le_vec;
 736 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
 737 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
 738 extern const bfd_target mips_elf32_trad_be_vec;
 739 extern const bfd_target mips_elf32_trad_le_vec;
 740 extern const bfd_target mips_elf32_tradfbsd_be_vec;
 741 extern const bfd_target mips_elf32_tradfbsd_le_vec;
 742 extern const bfd_target mips_elf32_vxworks_be_vec;
 743 extern const bfd_target mips_elf32_vxworks_le_vec;
 744 extern const bfd_target mips_elf64_be_vec;
 745 extern const bfd_target mips_elf64_le_vec;
 746 extern const bfd_target mips_elf64_trad_be_vec;
 747 extern const bfd_target mips_elf64_trad_le_vec;
 748 extern const bfd_target mips_elf64_tradfbsd_be_vec;
 749 extern const bfd_target mips_elf64_tradfbsd_le_vec;
 750 extern const bfd_target mips_pe_le_vec;
 751 extern const bfd_target mips_pei_le_vec;
 752 extern const bfd_target mmix_elf64_vec;
 753 extern const bfd_target mmix_mmo_vec;
 754 extern const bfd_target mn10200_elf32_vec;
 755 extern const bfd_target mn10300_elf32_vec;
 756 extern const bfd_target moxie_elf32_be_vec;
 757 extern const bfd_target moxie_elf32_le_vec;
 758 extern const bfd_target msp430_elf32_vec;
 759 extern const bfd_target msp430_elf32_ti_vec;
 760 extern const bfd_target mt_elf32_vec;
 761 extern const bfd_target nds32_elf32_be_vec;
 762 extern const bfd_target nds32_elf32_le_vec;
 763 extern const bfd_target nds32_elf32_linux_be_vec;
 764 extern const bfd_target nds32_elf32_linux_le_vec;
 765 extern const bfd_target nios2_elf32_be_vec;
 766 extern const bfd_target nios2_elf32_le_vec;
 767 extern const bfd_target ns32k_aout_pc532mach_vec;
 768 extern const bfd_target ns32k_aout_pc532nbsd_vec;
 769 extern const bfd_target oasys_vec;
 770 extern const bfd_target or1k_elf32_vec;
 771 extern const bfd_target pdp11_aout_vec;
 772 extern const bfd_target pef_vec;
 773 extern const bfd_target pef_xlib_vec;
 774 extern const bfd_target pj_elf32_vec;
 775 extern const bfd_target pj_elf32_le_vec;
 776 extern const bfd_target plugin_vec;
 777 extern const bfd_target powerpc_boot_vec;
 778 extern const bfd_target powerpc_elf32_vec;
 779 extern const bfd_target powerpc_elf32_le_vec;
 780 extern const bfd_target powerpc_elf32_fbsd_vec;
 781 extern const bfd_target powerpc_elf32_vxworks_vec;
 782 extern const bfd_target powerpc_elf64_vec;
 783 extern const bfd_target powerpc_elf64_le_vec;
 784 extern const bfd_target powerpc_elf64_fbsd_vec;
 785 extern const bfd_target powerpc_nlm32_vec;
 786 extern const bfd_target powerpc_pe_vec;
 787 extern const bfd_target powerpc_pe_le_vec;
 788 extern const bfd_target powerpc_pei_vec;
 789 extern const bfd_target powerpc_pei_le_vec;
 790 extern const bfd_target powerpc_xcoff_vec;
 791 extern const bfd_target rl78_elf32_vec;
 792 extern const bfd_target rs6000_xcoff64_vec;
 793 extern const bfd_target rs6000_xcoff64_aix_vec;
 794 extern const bfd_target rs6000_xcoff_vec;
 795 extern const bfd_target rx_elf32_be_vec;
 796 extern const bfd_target rx_elf32_be_ns_vec;
 797 extern const bfd_target rx_elf32_le_vec;
 798 extern const bfd_target s390_elf32_vec;
 799 extern const bfd_target s390_elf64_vec;
 800 extern const bfd_target score_elf32_be_vec;
 801 extern const bfd_target score_elf32_le_vec;
 802 extern const bfd_target sh64_elf32_vec;
 803 extern const bfd_target sh64_elf32_le_vec;
 804 extern const bfd_target sh64_elf32_linux_vec;
 805 extern const bfd_target sh64_elf32_linux_be_vec;
 806 extern const bfd_target sh64_elf32_nbsd_vec;
 807 extern const bfd_target sh64_elf32_nbsd_le_vec;
 808 extern const bfd_target sh64_elf64_vec;
 809 extern const bfd_target sh64_elf64_le_vec;
 810 extern const bfd_target sh64_elf64_linux_vec;
 811 extern const bfd_target sh64_elf64_linux_be_vec;
 812 extern const bfd_target sh64_elf64_nbsd_vec;
 813 extern const bfd_target sh64_elf64_nbsd_le_vec;
 814 extern const bfd_target sh_coff_vec;
 815 extern const bfd_target sh_coff_le_vec;
 816 extern const bfd_target sh_coff_small_vec;
 817 extern const bfd_target sh_coff_small_le_vec;
 818 extern const bfd_target sh_elf32_vec;
 819 extern const bfd_target sh_elf32_le_vec;
 820 extern const bfd_target sh_elf32_fdpic_be_vec;
 821 extern const bfd_target sh_elf32_fdpic_le_vec;
 822 extern const bfd_target sh_elf32_linux_vec;
 823 extern const bfd_target sh_elf32_linux_be_vec;
 824 extern const bfd_target sh_elf32_nbsd_vec;
 825 extern const bfd_target sh_elf32_nbsd_le_vec;
 826 extern const bfd_target sh_elf32_symbian_le_vec;
 827 extern const bfd_target sh_elf32_vxworks_vec;
 828 extern const bfd_target sh_elf32_vxworks_le_vec;
 829 extern const bfd_target sh_pe_le_vec;
 830 extern const bfd_target sh_pei_le_vec;
 831 extern const bfd_target sparc_aout_le_vec;
 832 extern const bfd_target sparc_aout_linux_vec;
 833 extern const bfd_target sparc_aout_lynx_vec;
 834 extern const bfd_target sparc_aout_nbsd_vec;
 835 extern const bfd_target sparc_aout_sunos_be_vec;
 836 extern const bfd_target sparc_coff_vec;
 837 extern const bfd_target sparc_coff_lynx_vec;
 838 extern const bfd_target sparc_elf32_vec;
 839 extern const bfd_target sparc_elf32_sol2_vec;
 840 extern const bfd_target sparc_elf32_vxworks_vec;
 841 extern const bfd_target sparc_elf64_vec;
 842 extern const bfd_target sparc_elf64_fbsd_vec;
 843 extern const bfd_target sparc_elf64_sol2_vec;
 844 extern const bfd_target sparc_nlm32_vec;
 845 extern const bfd_target spu_elf32_vec;
 846 extern const bfd_target sym_vec;
 847 extern const bfd_target tic30_aout_vec;
 848 extern const bfd_target tic30_coff_vec;
 849 extern const bfd_target tic4x_coff0_vec;
 850 extern const bfd_target tic4x_coff0_beh_vec;
 851 extern const bfd_target tic4x_coff1_vec;
 852 extern const bfd_target tic4x_coff1_beh_vec;
 853 extern const bfd_target tic4x_coff2_vec;
 854 extern const bfd_target tic4x_coff2_beh_vec;
 855 extern const bfd_target tic54x_coff0_vec;
 856 extern const bfd_target tic54x_coff0_beh_vec;
 857 extern const bfd_target tic54x_coff1_vec;
 858 extern const bfd_target tic54x_coff1_beh_vec;
 859 extern const bfd_target tic54x_coff2_vec;
 860 extern const bfd_target tic54x_coff2_beh_vec;
 861 extern const bfd_target tic6x_elf32_be_vec;
 862 extern const bfd_target tic6x_elf32_le_vec;
 863 extern const bfd_target tic6x_elf32_c6000_be_vec;
 864 extern const bfd_target tic6x_elf32_c6000_le_vec;
 865 extern const bfd_target tic6x_elf32_linux_be_vec;
 866 extern const bfd_target tic6x_elf32_linux_le_vec;
 867 extern const bfd_target tic80_coff_vec;
 868 extern const bfd_target tilegx_elf32_be_vec;
 869 extern const bfd_target tilegx_elf32_le_vec;
 870 extern const bfd_target tilegx_elf64_be_vec;
 871 extern const bfd_target tilegx_elf64_le_vec;
 872 extern const bfd_target tilepro_elf32_vec;
 873 extern const bfd_target v800_elf32_vec;
 874 extern const bfd_target v850_elf32_vec;
 875 extern const bfd_target ft32_elf32_vec;
 876 extern const bfd_target vax_aout_1knbsd_vec;
 877 extern const bfd_target vax_aout_bsd_vec;
 878 extern const bfd_target vax_aout_nbsd_vec;
 879 extern const bfd_target vax_elf32_vec;
 880 extern const bfd_target visium_elf32_vec;
 881 extern const bfd_target w65_coff_vec;
 882 extern const bfd_target we32k_coff_vec;
 883 extern const bfd_target x86_64_coff_vec;
 884 extern const bfd_target x86_64_elf32_vec;
 885 extern const bfd_target x86_64_elf32_nacl_vec;
 886 extern const bfd_target x86_64_elf64_vec;
 887 extern const bfd_target x86_64_elf64_fbsd_vec;
 888 extern const bfd_target x86_64_elf64_nacl_vec;
 889 extern const bfd_target x86_64_elf64_sol2_vec;
 890 extern const bfd_target x86_64_mach_o_vec;
 891 extern const bfd_target x86_64_pe_vec;
 892 extern const bfd_target x86_64_pe_be_vec;
 893 extern const bfd_target x86_64_pei_vec;
 894 extern const bfd_target xc16x_elf32_vec;
 895 extern const bfd_target xgate_elf32_vec;
 896 extern const bfd_target xstormy16_elf32_vec;
 897 extern const bfd_target xtensa_elf32_be_vec;
 898 extern const bfd_target xtensa_elf32_le_vec;
 899 extern const bfd_target z80_coff_vec;
 900 extern const bfd_target z8k_coff_vec;
 901
 902 /* These are always included.  */
 903 extern const bfd_target srec_vec;
 904 extern const bfd_target symbolsrec_vec;
 905 extern const bfd_target verilog_vec;
 906 extern const bfd_target tekhex_vec;
 907 extern const bfd_target binary_vec;
 908 extern const bfd_target ihex_vec;
 909
 910 /* All of the xvecs for core files.  */
 911 extern const bfd_target core_aix386_vec;
 912 extern const bfd_target core_cisco_be_vec;
 913 extern const bfd_target core_cisco_le_vec;
 914 extern const bfd_target core_hppabsd_vec;
 915 extern const bfd_target core_hpux_vec;
 916 extern const bfd_target core_irix_vec;
 917 extern const bfd_target core_netbsd_vec;
 918 extern const bfd_target core_osf_vec;
 919 extern const bfd_target core_ptrace_vec;
 920 extern const bfd_target core_sco5_vec;
 921 extern const bfd_target core_trad_vec;
 922
 923 static const bfd_target * const _bfd_target_vector[] =
 924 {
 925 #ifdef SELECT_VECS
 926
 927         SELECT_VECS,
 928
 929 #else /* not SELECT_VECS */
 930
 931 #ifdef DEFAULT_VECTOR
 932         &DEFAULT_VECTOR,
 933 #endif
 934         /* This list is alphabetized to make it easy to compare
 935            with other vector lists -- the decls above and
 936            the case statement in configure.ac.
 937            Try to keep it in order when adding new targets, and
 938            use a name of the form <cpu>_<format>_<other>_<endian>_vec.
 939            Note that sorting is done as if _<endian>_vec wasn't present.
 940            Vectors that don't compile on all systems, or aren't finished,
 941            should have an entry here with #if 0 around it, to show that
 942            it wasn't omitted by mistake.  */
 943 #ifdef BFD64
 944         &aarch64_elf32_be_vec,
 945         &aarch64_elf32_le_vec,
 946         &aarch64_elf64_be_vec,
 947         &aarch64_elf64_le_vec,
 948 #endif
 949
 950 #ifdef BFD64
 951         &alpha_ecoff_le_vec,
 952         &alpha_elf64_vec,
 953         &alpha_elf64_fbsd_vec,
 954         &alpha_nlm32_vec,
 955         &alpha_vms_vec,
 956 #endif
 957         &alpha_vms_lib_txt_vec,
 958
 959         &am33_elf32_linux_vec,
 960
 961         &aout0_be_vec,
 962 #ifdef BFD64
 963         &aout64_vec,    /* Only compiled if host has long-long support.  */
 964 #endif
 965 #if 0
 966         /* Since a.out files lack decent magic numbers, no way to recognize
 967            which kind of a.out file it is.  */
 968         &aout_vec,
 969 #endif
 970         &aout_adobe_vec,
 971
 972         &arc_elf32_be_vec,
 973         &arc_elf32_le_vec,
 974
 975 #if 0
 976         /* We have no way of distinguishing these from other a.out variants.  */
 977         &arm_aout_be_vec,
 978         &arm_aout_le_vec,
 979 #endif
 980         &arm_aout_nbsd_vec,
 981 #if 0
 982         /* We have no way of distinguishing these from other a.out variants.  */
 983         &arm_aout_riscix_vec,
 984 #endif
 985         &arm_coff_be_vec,
 986         &arm_coff_le_vec,
 987         &arm_elf32_be_vec,
 988         &arm_elf32_le_vec,
 989         &arm_elf32_symbian_be_vec,
 990         &arm_elf32_symbian_le_vec,
 991         &arm_elf32_vxworks_be_vec,
 992         &arm_elf32_vxworks_le_vec,
 993         &arm_pe_be_vec,
 994         &arm_pe_le_vec,
 995         &arm_pe_epoc_be_vec,
 996         &arm_pe_epoc_le_vec,
 997         &arm_pe_wince_be_vec,
 998         &arm_pe_wince_le_vec,
 999         &arm_pei_be_vec,
1000         &arm_pei_le_vec,
1001         &arm_pei_epoc_be_vec,
1002         &arm_pei_epoc_le_vec,
1003         &arm_pei_wince_be_vec,
1004         &arm_pei_wince_le_vec,
1005
1006         &avr_elf32_vec,
1007
1008         &bfin_elf32_vec,
1009         &bfin_elf32_fdpic_vec,
1010
1011         &bout_be_vec,
1012         &bout_le_vec,
1013
1014         &cr16_elf32_vec,
1015         &cr16c_elf32_vec,
1016
1017         &cris_aout_vec,
1018         &cris_elf32_vec,
1019         &cris_elf32_us_vec,
1020
1021         &crx_elf32_vec,
1022
1023         &d10v_elf32_vec,
1024         &d30v_elf32_vec,
1025
1026         &dlx_elf32_be_vec,
1027
1028         /* This, and other vectors, may not be used in any *.mt configuration.
1029            But that does not mean they are unnecessary.  If configured with
1030            --enable-targets=all, objdump or gdb should be able to examine
1031            the file even if we don't recognize the machine type.  */
1032         &elf32_be_vec,
1033         &elf32_le_vec,
1034 #ifdef BFD64
1035         &elf64_be_vec,
1036         &elf64_le_vec,
1037 #endif
1038
1039         &epiphany_elf32_vec,
1040
1041         &fr30_elf32_vec,
1042
1043         &frv_elf32_vec,
1044         &frv_elf32_fdpic_vec,
1045
1046         &h8300_coff_vec,
1047         &h8300_elf32_vec,
1048         &h8500_coff_vec,
1049
1050         &hppa_elf32_vec,
1051         &hppa_elf32_linux_vec,
1052         &hppa_elf32_nbsd_vec,
1053 #ifdef BFD64
1054         &hppa_elf64_vec,
1055         &hppa_elf64_linux_vec,
1056 #endif
1057         &hppa_som_vec,
1058
1059         &i370_elf32_vec,
1060
1061         &i386_aout_vec,
1062         &i386_aout_bsd_vec,
1063 #if 0
1064         &i386_aout_dynix_vec,
1065 #endif
1066         &i386_aout_fbsd_vec,
1067 #if 0
1068         /* Since a.out files lack decent magic numbers, no way to recognize
1069            which kind of a.out file it is.  */
1070         &i386_aout_linux_vec,
1071 #endif
1072         &i386_aout_lynx_vec,
1073 #if 0
1074         /* No distinguishing features for Mach 3 executables.  */
1075         &i386_aout_mach3_vec,
1076 #endif
1077         &i386_aout_nbsd_vec,
1078         &i386_aout_os9k_vec,
1079         &i386_coff_vec,
1080         &i386_coff_go32_vec,
1081         &i386_coff_go32stubbed_vec,
1082         &i386_coff_lynx_vec,
1083         &i386_elf32_vec,
1084         &i386_elf32_fbsd_vec,
1085         &i386_elf32_nacl_vec,
1086         &i386_elf32_sol2_vec,
1087         &i386_elf32_vxworks_vec,
1088         &i386_mach_o_vec,
1089         &i386_msdos_vec,
1090         &i386_nlm32_vec,
1091         &i386_pe_vec,
1092         &i386_pei_vec,
1093
1094         &i860_coff_vec,
1095         &i860_elf32_vec,
1096         &i860_elf32_le_vec,
1097
1098         &i960_elf32_vec,
1099
1100 #ifdef BFD64
1101 #if 0
1102         &ia64_elf32_be_vec,
1103 #endif
1104         &ia64_elf32_hpux_be_vec,
1105         &ia64_elf64_be_vec,
1106         &ia64_elf64_le_vec,
1107         &ia64_elf64_hpux_be_vec,
1108         &ia64_elf64_vms_vec,
1109         &ia64_pei_vec,
1110 #endif
1111
1112         &icoff_be_vec,
1113         &icoff_le_vec,
1114
1115         &ieee_vec,
1116
1117         &ip2k_elf32_vec,
1118         &iq2000_elf32_vec,
1119
1120 #ifdef BFD64
1121         &k1om_elf64_vec,
1122         &k1om_elf64_fbsd_vec,
1123         &l1om_elf64_vec,
1124         &l1om_elf64_fbsd_vec,
1125 #endif
1126
1127         &lm32_elf32_vec,
1128
1129         &m32c_elf32_vec,
1130
1131         &m32r_elf32_vec,
1132         &m32r_elf32_le_vec,
1133         &m32r_elf32_linux_vec,
1134         &m32r_elf32_linux_le_vec,
1135
1136         &m68hc11_elf32_vec,
1137         &m68hc12_elf32_vec,
1138
1139 #if 0
1140         &m68k_aout_4knbsd_vec,
1141         /* Clashes with sparc_aout_sunos_be_vec magic no.  */
1142         &m68k_aout_hp300bsd_vec,
1143 #endif
1144         &m68k_aout_hp300hpux_vec,
1145 #if 0
1146         /* Since a.out files lack decent magic numbers, no way to recognize
1147            which kind of a.out file it is.  */
1148         &m68k_aout_linux_vec,
1149 #endif
1150         &m68k_aout_nbsd_vec,
1151         &m68k_aout_newsos3_vec,
1152         &m68k_coff_vec,
1153 #if 0
1154         &m68k_coff_apollo_vec,
1155         &m68k_coff_aux_vec,
1156 #endif
1157         &m68k_coff_sysv_vec,
1158         &m68k_coff_un_vec,
1159         &m68k_elf32_vec,
1160         &m68k_versados_vec,
1161
1162         &m88k_aout_mach3_vec,
1163         &m88k_aout_obsd_vec,
1164         &m88k_coff_bcs_vec,
1165         &m88k_elf32_vec,
1166
1167         &mach_o_be_vec,
1168         &mach_o_le_vec,
1169         &mach_o_fat_vec,
1170
1171         &mcore_elf32_be_vec,
1172         &mcore_elf32_le_vec,
1173         &mcore_pe_be_vec,
1174         &mcore_pe_le_vec,
1175         &mcore_pei_be_vec,
1176         &mcore_pei_le_vec,
1177
1178         &mep_elf32_vec,
1179
1180         &metag_elf32_vec,
1181
1182         &microblaze_elf32_vec,
1183
1184 #if 0
1185         /* No one seems to use this.  */
1186         &mips_aout_be_vec,
1187 #endif
1188         &mips_aout_le_vec,
1189         &mips_ecoff_be_vec,
1190         &mips_ecoff_le_vec,
1191         &mips_ecoff_bele_vec,
1192 #ifdef BFD64
1193         &mips_elf32_be_vec,
1194         &mips_elf32_le_vec,
1195         &mips_elf32_n_be_vec,
1196         &mips_elf32_n_le_vec,
1197         &mips_elf32_ntrad_be_vec,
1198         &mips_elf32_ntrad_le_vec,
1199         &mips_elf32_ntradfbsd_be_vec,
1200         &mips_elf32_ntradfbsd_le_vec,
1201         &mips_elf32_trad_be_vec,
1202         &mips_elf32_trad_le_vec,
1203         &mips_elf32_tradfbsd_be_vec,
1204         &mips_elf32_tradfbsd_le_vec,
1205         &mips_elf32_vxworks_be_vec,
1206         &mips_elf32_vxworks_le_vec,
1207         &mips_elf64_be_vec,
1208         &mips_elf64_le_vec,
1209         &mips_elf64_trad_be_vec,
1210         &mips_elf64_trad_le_vec,
1211         &mips_elf64_tradfbsd_be_vec,
1212         &mips_elf64_tradfbsd_le_vec,
1213 #endif
1214         &mips_pe_le_vec,
1215         &mips_pei_le_vec,
1216
1217 #ifdef BFD64
1218         &mmix_elf64_vec,
1219         &mmix_mmo_vec,
1220 #endif
1221
1222         &mn10200_elf32_vec,
1223         &mn10300_elf32_vec,
1224
1225         &moxie_elf32_be_vec,
1226         &moxie_elf32_le_vec,
1227
1228         &msp430_elf32_vec,
1229         &msp430_elf32_ti_vec,
1230
1231         &mt_elf32_vec,
1232
1233         &nds32_elf32_be_vec,
1234         &nds32_elf32_le_vec,
1235         &nds32_elf32_linux_be_vec,
1236         &nds32_elf32_linux_le_vec,
1237
1238         &nios2_elf32_be_vec,
1239         &nios2_elf32_le_vec,
1240
1241         &ns32k_aout_pc532mach_vec,
1242         &ns32k_aout_pc532nbsd_vec,
1243
1244 #if 0
1245         /* We have no oasys tools anymore, so we can't test any of this
1246            anymore. If you want to test the stuff yourself, go ahead...
1247            steve@cygnus.com
1248            Worse, since there is no magic number for archives, there
1249            can be annoying target mis-matches.  */
1250         &oasys_vec,
1251 #endif
1252
1253         &or1k_elf32_vec,
1254
1255         &pdp11_aout_vec,
1256
1257         &pef_vec,
1258         &pef_xlib_vec,
1259
1260         &pj_elf32_vec,
1261         &pj_elf32_le_vec,
1262
1263 #if BFD_SUPPORTS_PLUGINS
1264         &plugin_vec,
1265 #endif
1266
1267         &powerpc_boot_vec,
1268         &powerpc_elf32_vec,
1269         &powerpc_elf32_le_vec,
1270         &powerpc_elf32_fbsd_vec,
1271         &powerpc_elf32_vxworks_vec,
1272 #ifdef BFD64
1273         &powerpc_elf64_vec,
1274         &powerpc_elf64_le_vec,
1275         &powerpc_elf64_fbsd_vec,
1276 #endif
1277         &powerpc_nlm32_vec,
1278         &powerpc_pe_vec,
1279         &powerpc_pe_le_vec,
1280         &powerpc_pei_vec,
1281         &powerpc_pei_le_vec,
1282 #if 0
1283         /* This has the same magic number as RS/6000.  */
1284         &powerpc_xcoff_vec,
1285 #endif
1286
1287         &rl78_elf32_vec,
1288
1289 #ifdef BFD64
1290         &rs6000_xcoff64_vec,
1291         &rs6000_xcoff64_aix_vec,
1292 #endif
1293         &rs6000_xcoff_vec,
1294
1295         &rx_elf32_be_vec,
1296         &rx_elf32_be_ns_vec,
1297         &rx_elf32_le_vec,
1298
1299         &s390_elf32_vec,
1300 #ifdef BFD64
1301         &s390_elf64_vec,
1302 #endif
1303
1304 #ifdef BFD64
1305         &score_elf32_be_vec,
1306         &score_elf32_le_vec,
1307 #endif
1308
1309 #ifdef BFD64
1310         &sh64_elf32_vec,
1311         &sh64_elf32_le_vec,
1312         &sh64_elf32_linux_vec,
1313         &sh64_elf32_linux_be_vec,
1314         &sh64_elf32_nbsd_vec,
1315         &sh64_elf32_nbsd_le_vec,
1316         &sh64_elf64_vec,
1317         &sh64_elf64_le_vec,
1318         &sh64_elf64_linux_vec,
1319         &sh64_elf64_linux_be_vec,
1320         &sh64_elf64_nbsd_vec,
1321         &sh64_elf64_nbsd_le_vec,
1322 #endif
1323         &sh_coff_vec,
1324         &sh_coff_le_vec,
1325         &sh_coff_small_vec,
1326         &sh_coff_small_le_vec,
1327         &sh_elf32_vec,
1328         &sh_elf32_le_vec,
1329         &sh_elf32_fdpic_be_vec,
1330         &sh_elf32_fdpic_le_vec,
1331         &sh_elf32_linux_vec,
1332         &sh_elf32_linux_be_vec,
1333         &sh_elf32_nbsd_vec,
1334         &sh_elf32_nbsd_le_vec,
1335         &sh_elf32_symbian_le_vec,
1336         &sh_elf32_vxworks_vec,
1337         &sh_elf32_vxworks_le_vec,
1338         &sh_pe_le_vec,
1339         &sh_pei_le_vec,
1340
1341         &sparc_aout_le_vec,
1342         &sparc_aout_linux_vec,
1343         &sparc_aout_lynx_vec,
1344         &sparc_aout_nbsd_vec,
1345         &sparc_aout_sunos_be_vec,
1346         &sparc_coff_vec,
1347         &sparc_coff_lynx_vec,
1348         &sparc_elf32_vec,
1349         &sparc_elf32_sol2_vec,
1350         &sparc_elf32_vxworks_vec,
1351 #ifdef BFD64
1352         &sparc_elf64_vec,
1353         &sparc_elf64_fbsd_vec,
1354         &sparc_elf64_sol2_vec,
1355 #endif
1356         &sparc_nlm32_vec,
1357
1358         &spu_elf32_vec,
1359
1360         &sym_vec,
1361
1362         &tic30_aout_vec,
1363         &tic30_coff_vec,
1364         &tic54x_coff0_beh_vec,
1365         &tic54x_coff0_vec,
1366         &tic54x_coff1_beh_vec,
1367         &tic54x_coff1_vec,
1368         &tic54x_coff2_beh_vec,
1369         &tic54x_coff2_vec,
1370         &tic6x_elf32_be_vec,
1371         &tic6x_elf32_le_vec,
1372         &tic80_coff_vec,
1373
1374         &tilegx_elf32_be_vec,
1375         &tilegx_elf32_le_vec,
1376 #ifdef BFD64
1377         &tilegx_elf64_be_vec,
1378         &tilegx_elf64_le_vec,
1379 #endif
1380         &tilepro_elf32_vec,
1381
1382         &ft32_elf32_vec,
1383
1384         &v800_elf32_vec,
1385         &v850_elf32_vec,
1386
1387         &vax_aout_1knbsd_vec,
1388         &vax_aout_bsd_vec,
1389         &vax_aout_nbsd_vec,
1390         &vax_elf32_vec,
1391
1392         &visium_elf32_vec,
1393
1394         &w65_coff_vec,
1395
1396         &we32k_coff_vec,
1397
1398 #ifdef BFD64
1399         &x86_64_coff_vec,
1400         &x86_64_elf32_vec,
1401         &x86_64_elf32_nacl_vec,
1402         &x86_64_elf64_vec,
1403         &x86_64_elf64_fbsd_vec,
1404         &x86_64_elf64_nacl_vec,
1405         &x86_64_elf64_sol2_vec,
1406         &x86_64_mach_o_vec,
1407         &x86_64_pe_vec,
1408         &x86_64_pe_be_vec,
1409         &x86_64_pei_vec,
1410 #endif
1411
1412         &xc16x_elf32_vec,
1413
1414         &xgate_elf32_vec,
1415
1416         &xstormy16_elf32_vec,
1417
1418         &xtensa_elf32_be_vec,
1419         &xtensa_elf32_le_vec,
1420
1421         &z80_coff_vec,
1422
1423         &z8k_coff_vec,
1424 #endif /* not SELECT_VECS */
1425
1426 /* Always support S-records, for convenience.  */
1427         &srec_vec,
1428         &symbolsrec_vec,
1429 /* And verilog.  */
1430         &verilog_vec,
1431 /* And tekhex */
1432         &tekhex_vec,
1433 /* Likewise for binary output.  */
1434         &binary_vec,
1435 /* Likewise for ihex.  */
1436         &ihex_vec,
1437
1438 /* Add any required traditional-core-file-handler.  */
1439
1440 #ifdef AIX386_CORE
1441         &core_aix386_vec,
1442 #endif
1443 #if 0
1444         /* We don't include cisco_core_*_vec.  Although it has a magic number,
1445            the magic number isn't at the beginning of the file, and thus
1446            might spuriously match other kinds of files.  */
1447         &core_cisco_be_vec,
1448         &core_cisco_le_vec,
1449 #endif
1450 #ifdef HPPABSD_CORE
1451         &core_hppabsd_vec,
1452 #endif
1453 #ifdef HPUX_CORE
1454         &core_hpux_vec,
1455 #endif
1456 #ifdef IRIX_CORE
1457         &core_irix_vec,
1458 #endif
1459 #ifdef NETBSD_CORE
1460         &core_netbsd_vec,
1461 #endif
1462 #ifdef OSF_CORE
1463         &core_osf_vec,
1464 #endif
1465 #ifdef PTRACE_CORE
1466         &core_ptrace_vec,
1467 #endif
1468 #ifdef SCO5_CORE
1469         &core_sco5_vec,
1470 #endif
1471 #ifdef TRAD_CORE
1472         &core_trad_vec,
1473 #endif
1474
1475         NULL /* end of list marker */
1476 };
1477 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1478
1479 /* bfd_default_vector[0] contains either the address of the default vector,
1480    if there is one, or zero if there isn't.  */
1481
1482 const bfd_target *bfd_default_vector[] = {
1483 #ifdef DEFAULT_VECTOR
1484         &DEFAULT_VECTOR,
1485 #endif
1486         NULL
1487 };
1488
1489 /* bfd_associated_vector[] contains the associated target vectors used
1490    to reduce the ambiguity in bfd_check_format_matches.  */
1491
1492 static const bfd_target *_bfd_associated_vector[] = {
1493 #ifdef ASSOCIATED_VECS
1494         ASSOCIATED_VECS,
1495 #endif
1496         NULL
1497 };
1498 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
1499
1500 /* When there is an ambiguous match, bfd_check_format_matches puts the
1501    names of the matching targets in an array.  This variable is the maximum
1502    number of entries that the array could possibly need.  */
1503 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1504 \f
1505 /* This array maps configuration triplets onto BFD vectors.  */
1506
1507 struct targmatch
1508 {
1509   /* The configuration triplet.  */
1510   const char *triplet;
1511   /* The BFD vector.  If this is NULL, then the vector is found by
1512      searching forward for the next structure with a non NULL vector
1513      field.  */
1514   const bfd_target *vector;
1515 };
1516
1517 /* targmatch.h is built by Makefile out of config.bfd.  */
1518 static const struct targmatch bfd_target_match[] = {
1519 #include "targmatch.h"
1520   { NULL, NULL }
1521 };
1522
1523 /* Find a target vector, given a name or configuration triplet.  */
1524
1525 static const bfd_target *
1526 find_target (const char *name)
1527 {
1528   const bfd_target * const *target;
1529   const struct targmatch *match;
1530
1531   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1532     if (strcmp (name, (*target)->name) == 0)
1533       return *target;
1534
1535   /* If we couldn't match on the exact name, try matching on the
1536      configuration triplet.  FIXME: We should run the triplet through
1537      config.sub first, but that is hard.  */
1538   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1539     {
1540       if (fnmatch (match->triplet, name, 0) == 0)
1541         {
1542           while (match->vector == NULL)
1543             ++match;
1544           return match->vector;
1545         }
1546     }
1547
1548   bfd_set_error (bfd_error_invalid_target);
1549   return NULL;
1550 }
1551
1552 /*
1553 FUNCTION
1554         bfd_set_default_target
1555
1556 SYNOPSIS
1557         bfd_boolean bfd_set_default_target (const char *name);
1558
1559 DESCRIPTION
1560         Set the default target vector to use when recognizing a BFD.
1561         This takes the name of the target, which may be a BFD target
1562         name or a configuration triplet.
1563 */
1564
1565 bfd_boolean
1566 bfd_set_default_target (const char *name)
1567 {
1568   const bfd_target *target;
1569
1570   if (bfd_default_vector[0] != NULL
1571       && strcmp (name, bfd_default_vector[0]->name) == 0)
1572     return TRUE;
1573
1574   target = find_target (name);
1575   if (target == NULL)
1576     return FALSE;
1577
1578   bfd_default_vector[0] = target;
1579   return TRUE;
1580 }
1581
1582 /*
1583 FUNCTION
1584         bfd_find_target
1585
1586 SYNOPSIS
1587         const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1588
1589 DESCRIPTION
1590         Return a pointer to the transfer vector for the object target
1591         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1592         choose the one in the environment variable <<GNUTARGET>>; if
1593         that is null or not defined, then choose the first entry in the
1594         target list.  Passing in the string "default" or setting the
1595         environment variable to "default" will cause the first entry in
1596         the target list to be returned, and "target_defaulted" will be
1597         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1598         <<bfd_check_format>> to loop over all the targets to find the
1599         one that matches the file being read.
1600 */
1601
1602 const bfd_target *
1603 bfd_find_target (const char *target_name, bfd *abfd)
1604 {
1605   const char *targname;
1606   const bfd_target *target;
1607
1608   if (target_name != NULL)
1609     targname = target_name;
1610   else
1611     targname = getenv ("GNUTARGET");
1612
1613   /* This is safe; the vector cannot be null.  */
1614   if (targname == NULL || strcmp (targname, "default") == 0)
1615     {
1616       if (bfd_default_vector[0] != NULL)
1617         target = bfd_default_vector[0];
1618       else
1619         target = bfd_target_vector[0];
1620       if (abfd)
1621         {
1622           abfd->xvec = target;
1623           abfd->target_defaulted = TRUE;
1624         }
1625       return target;
1626     }
1627
1628   if (abfd)
1629     abfd->target_defaulted = FALSE;
1630
1631   target = find_target (targname);
1632   if (target == NULL)
1633     return NULL;
1634
1635   if (abfd)
1636     abfd->xvec = target;
1637   return target;
1638 }
1639
1640 /* Helper function for bfd_get_target_info to determine the target's
1641    architecture.  This method handles bfd internal target names as
1642    tuples and triplets.  */
1643 static bfd_boolean
1644 _bfd_find_arch_match (const char *tname, const char **arch,
1645                       const char **def_target_arch)
1646 {
1647   if (!arch)
1648     return FALSE;
1649
1650   while (*arch != NULL)
1651     {
1652       const char *in_a = strstr (*arch, tname);
1653       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1654
1655       if (in_a && (in_a == *arch || in_a[-1] == ':')
1656           && end_ch == 0)
1657         {
1658           *def_target_arch = *arch;
1659           return TRUE;
1660         }
1661       arch++;
1662     }
1663   return FALSE;
1664 }
1665
1666 /*
1667 FUNCTION
1668         bfd_get_target_info
1669 SYNOPSIS
1670         const bfd_target *bfd_get_target_info (const char *target_name,
1671                                                bfd *abfd,
1672                                                bfd_boolean *is_bigendian,
1673                                                int *underscoring,
1674                                                const char **def_target_arch);
1675 DESCRIPTION
1676         Return a pointer to the transfer vector for the object target
1677         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1678         choose the one in the environment variable <<GNUTARGET>>; if
1679         that is null or not defined, then choose the first entry in the
1680         target list.  Passing in the string "default" or setting the
1681         environment variable to "default" will cause the first entry in
1682         the target list to be returned, and "target_defaulted" will be
1683         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1684         <<bfd_check_format>> to loop over all the targets to find the
1685         one that matches the file being read.
1686         If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1687         endian mode. True for big-endian, FALSE for little-endian or for
1688         invalid target.
1689         If @var{underscoring} is not <<NULL>>, then set this value to target's
1690         underscoring mode. Zero for none-underscoring, -1 for invalid target,
1691         else the value of target vector's symbol underscoring.
1692         If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1693         string specified by the target_name.
1694 */
1695 const bfd_target *
1696 bfd_get_target_info (const char *target_name, bfd *abfd,
1697                      bfd_boolean *is_bigendian,
1698                      int *underscoring, const char **def_target_arch)
1699 {
1700   const bfd_target *target_vec;
1701
1702   if (is_bigendian)
1703     *is_bigendian = FALSE;
1704   if (underscoring)
1705     *underscoring = -1;
1706   if (def_target_arch)
1707     *def_target_arch = NULL;
1708   target_vec = bfd_find_target (target_name, abfd);
1709   if (! target_vec)
1710     return NULL;
1711   if (is_bigendian)
1712     *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
1713                                                                : FALSE);
1714   if (underscoring)
1715     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1716
1717   if (def_target_arch)
1718     {
1719       const char *tname = target_vec->name;
1720       const char **arches = bfd_arch_list ();
1721
1722       if (arches && tname)
1723         {
1724           char *hyp = strchr (tname, '-');
1725
1726           if (hyp != NULL)
1727             {
1728               tname = ++hyp;
1729
1730               /* Make sure we detect architecture names
1731                  for triplets like "pe-arm-wince-little".  */
1732               if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1733                 {
1734                   char new_tname[50];
1735
1736                   strcpy (new_tname, hyp);
1737                   while ((hyp = strrchr (new_tname, '-')) != NULL)
1738                     {
1739                       *hyp = 0;
1740                       if (_bfd_find_arch_match (new_tname, arches,
1741                                                 def_target_arch))
1742                         break;
1743                     }
1744                 }
1745             }
1746           else
1747             _bfd_find_arch_match (tname, arches, def_target_arch);
1748         }
1749
1750       if (arches)
1751         free (arches);
1752     }
1753   return target_vec;
1754 }
1755
1756 /*
1757 FUNCTION
1758         bfd_target_list
1759
1760 SYNOPSIS
1761         const char ** bfd_target_list (void);
1762
1763 DESCRIPTION
1764         Return a freshly malloced NULL-terminated
1765         vector of the names of all the valid BFD targets. Do not
1766         modify the names.
1767
1768 */
1769
1770 const char **
1771 bfd_target_list (void)
1772 {
1773   int vec_length = 0;
1774   bfd_size_type amt;
1775   const bfd_target * const *target;
1776   const  char **name_list, **name_ptr;
1777
1778   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1779     vec_length++;
1780
1781   amt = (vec_length + 1) * sizeof (char **);
1782   name_ptr = name_list = (const  char **) bfd_malloc (amt);
1783
1784   if (name_list == NULL)
1785     return NULL;
1786
1787   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1788     if (target == &bfd_target_vector[0]
1789         || *target != bfd_target_vector[0])
1790       *name_ptr++ = (*target)->name;
1791
1792   *name_ptr = NULL;
1793   return name_list;
1794 }
1795
1796 /*
1797 FUNCTION
1798         bfd_seach_for_target
1799
1800 SYNOPSIS
1801         const bfd_target *bfd_search_for_target
1802           (int (*search_func) (const bfd_target *, void *),
1803            void *);
1804
1805 DESCRIPTION
1806         Return a pointer to the first transfer vector in the list of
1807         transfer vectors maintained by BFD that produces a non-zero
1808         result when passed to the function @var{search_func}.  The
1809         parameter @var{data} is passed, unexamined, to the search
1810         function.
1811 */
1812
1813 const bfd_target *
1814 bfd_search_for_target (int (*search_func) (const bfd_target *, void *),
1815                        void *data)
1816 {
1817   const bfd_target * const *target;
1818
1819   for (target = bfd_target_vector; *target != NULL; target ++)
1820     if (search_func (*target, data))
1821       return *target;
1822
1823   return NULL;
1824 }