bfd/targets.c

   1 /* Generic target-file-type support for the BFD library.
   2    Copyright (C) 1990-2019 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_tekhex_flavour,
 155 .  bfd_target_srec_flavour,
 156 .  bfd_target_verilog_flavour,
 157 .  bfd_target_ihex_flavour,
 158 .  bfd_target_som_flavour,
 159 .  bfd_target_os9k_flavour,
 160 .  bfd_target_versados_flavour,
 161 .  bfd_target_msdos_flavour,
 162 .  bfd_target_ovax_flavour,
 163 .  bfd_target_evax_flavour,
 164 .  bfd_target_mmo_flavour,
 165 .  bfd_target_mach_o_flavour,
 166 .  bfd_target_pef_flavour,
 167 .  bfd_target_pef_xlib_flavour,
 168 .  bfd_target_sym_flavour
 169 .};
 170 .
 171 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
 172 .
 173 .{* Forward declaration.  *}
 174 .typedef struct bfd_link_info _bfd_link_info;
 175 .
 176 .{* Forward declaration.  *}
 177 .typedef struct flag_info flag_info;
 178 .
 179 .typedef struct bfd_target
 180 .{
 181 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
 182 .  const char *name;
 183 .
 184 . {* The "flavour" of a back end is a general indication about
 185 .    the contents of a file.  *}
 186 .  enum bfd_flavour flavour;
 187 .
 188 .  {* The order of bytes within the data area of a file.  *}
 189 .  enum bfd_endian byteorder;
 190 .
 191 . {* The order of bytes within the header parts of a file.  *}
 192 .  enum bfd_endian header_byteorder;
 193 .
 194 .  {* A mask of all the flags which an executable may have set -
 195 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
 196 .  flagword object_flags;
 197 .
 198 . {* A mask of all the flags which a section may have set - from
 199 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
 200 .  flagword section_flags;
 201 .
 202 . {* The character normally found at the front of a symbol.
 203 .    (if any), perhaps `_'.  *}
 204 .  char symbol_leading_char;
 205 .
 206 . {* The pad character for file names within an archive header.  *}
 207 .  char ar_pad_char;
 208 .
 209 .  {* The maximum number of characters in an archive header.  *}
 210 .  unsigned char ar_max_namelen;
 211 .
 212 .  {* How well this target matches, used to select between various
 213 .     possible targets when more than one target matches.  *}
 214 .  unsigned char match_priority;
 215 .
 216 .  {* Entries for byte swapping for data. These are different from the
 217 .     other entry points, since they don't take a BFD as the first argument.
 218 .     Certain other handlers could do the same.  *}
 219 .  bfd_uint64_t   (*bfd_getx64) (const void *);
 220 .  bfd_int64_t    (*bfd_getx_signed_64) (const void *);
 221 .  void           (*bfd_putx64) (bfd_uint64_t, void *);
 222 .  bfd_vma        (*bfd_getx32) (const void *);
 223 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
 224 .  void           (*bfd_putx32) (bfd_vma, void *);
 225 .  bfd_vma        (*bfd_getx16) (const void *);
 226 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
 227 .  void           (*bfd_putx16) (bfd_vma, void *);
 228 .
 229 .  {* Byte swapping for the headers.  *}
 230 .  bfd_uint64_t   (*bfd_h_getx64) (const void *);
 231 .  bfd_int64_t    (*bfd_h_getx_signed_64) (const void *);
 232 .  void           (*bfd_h_putx64) (bfd_uint64_t, void *);
 233 .  bfd_vma        (*bfd_h_getx32) (const void *);
 234 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
 235 .  void           (*bfd_h_putx32) (bfd_vma, void *);
 236 .  bfd_vma        (*bfd_h_getx16) (const void *);
 237 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
 238 .  void           (*bfd_h_putx16) (bfd_vma, void *);
 239 .
 240 .  {* Format dependent routines: these are vectors of entry points
 241 .     within the target vector structure, one for each format to check.  *}
 242 .
 243 .  {* Check the format of a file being read.  Return a <<bfd_target *>> or zero.  *}
 244 .  const struct bfd_target *
 245 .              (*_bfd_check_format[bfd_type_end]) (bfd *);
 246 .
 247 .  {* Set the format of a file being written.  *}
 248 .  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
 249 .
 250 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
 251 .  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
 252 .
 253 The general target vector.  These vectors are initialized using the
 254 BFD_JUMP_TABLE macros.
 255 .
 256 .  {* Generic entry points.  *}
 257 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
 258 .  NAME##_close_and_cleanup, \
 259 .  NAME##_bfd_free_cached_info, \
 260 .  NAME##_new_section_hook, \
 261 .  NAME##_get_section_contents, \
 262 .  NAME##_get_section_contents_in_window
 263 .
 264 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
 265 .  bfd_boolean (*_close_and_cleanup) (bfd *);
 266 .  {* Ask the BFD to free all cached information.  *}
 267 .  bfd_boolean (*_bfd_free_cached_info) (bfd *);
 268 .  {* Called when a new section is created.  *}
 269 .  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
 270 .  {* Read the contents of a section.  *}
 271 .  bfd_boolean (*_bfd_get_section_contents) (bfd *, sec_ptr, void *, file_ptr,
 272 .                                            bfd_size_type);
 273 .  bfd_boolean (*_bfd_get_section_contents_in_window) (bfd *, sec_ptr,
 274 .                                                      bfd_window *, file_ptr,
 275 .                                                      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 *, struct bfd_link_info *);
 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, \
 298 .                 (ibfd, isec, obfd, osec, link_info))
 299 .  bfd_boolean (*_bfd_init_private_section_data) (bfd *, sec_ptr, bfd *,
 300 .                                                 sec_ptr,
 301 .                                                 struct bfd_link_info *);
 302 .  {* Called to copy BFD private section data from one object file
 303 .     to another.  *}
 304 .  bfd_boolean (*_bfd_copy_private_section_data) (bfd *, sec_ptr, bfd *,
 305 .                                                 sec_ptr);
 306 .  {* Called to copy BFD private symbol data from one symbol
 307 .     to another.  *}
 308 .  bfd_boolean (*_bfd_copy_private_symbol_data) (bfd *, asymbol *, bfd *,
 309 .                                                asymbol *);
 310 .  {* Called to copy BFD private header data from one object file
 311 .     to another.  *}
 312 .  bfd_boolean (*_bfd_copy_private_header_data) (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) (bfd *, char **,
 348 .                                                     bfd_size_type *,
 349 .                                                     const char **);
 350 .  void        (*_bfd_truncate_arname) (bfd *, const char *, char *);
 351 .  bfd_boolean (*write_armap) (bfd *, unsigned int, struct orl *,
 352 .                              unsigned int, int);
 353 .  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
 354 .  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
 355 .  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
 356 .#define bfd_get_elt_at_index(b,i) \
 357 .       BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
 358 .  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
 359 .  int         (*_bfd_stat_arch_elt) (bfd *, struct stat *);
 360 .  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
 361 .
 362 .  {* Entry points used for symbols.  *}
 363 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
 364 .  NAME##_get_symtab_upper_bound, \
 365 .  NAME##_canonicalize_symtab, \
 366 .  NAME##_make_empty_symbol, \
 367 .  NAME##_print_symbol, \
 368 .  NAME##_get_symbol_info, \
 369 .  NAME##_get_symbol_version_string, \
 370 .  NAME##_bfd_is_local_label_name, \
 371 .  NAME##_bfd_is_target_special_symbol, \
 372 .  NAME##_get_lineno, \
 373 .  NAME##_find_nearest_line, \
 374 .  NAME##_find_line, \
 375 .  NAME##_find_inliner_info, \
 376 .  NAME##_bfd_make_debug_symbol, \
 377 .  NAME##_read_minisymbols, \
 378 .  NAME##_minisymbol_to_symbol
 379 .
 380 .  long        (*_bfd_get_symtab_upper_bound) (bfd *);
 381 .  long        (*_bfd_canonicalize_symtab) (bfd *, struct bfd_symbol **);
 382 .  struct bfd_symbol *
 383 .              (*_bfd_make_empty_symbol) (bfd *);
 384 .  void        (*_bfd_print_symbol) (bfd *, void *, struct bfd_symbol *,
 385 .                                    bfd_print_symbol_type);
 386 .#define bfd_print_symbol(b,p,s,e) \
 387 .       BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
 388 .  void        (*_bfd_get_symbol_info) (bfd *, struct bfd_symbol *,
 389 .                                       symbol_info *);
 390 .#define bfd_get_symbol_info(b,p,e) \
 391 .       BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
 392 .  const char *(*_bfd_get_symbol_version_string) (bfd *, struct bfd_symbol *,
 393 .                                                 bfd_boolean *);
 394 .#define bfd_get_symbol_version_string(b,s,h) \
 395 .       BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h))
 396 .  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
 397 .  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
 398 .  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
 399 .  bfd_boolean (*_bfd_find_nearest_line) (bfd *, struct bfd_symbol **,
 400 .                                         struct bfd_section *, bfd_vma,
 401 .                                         const char **, const char **,
 402 .                                         unsigned int *, unsigned int *);
 403 .  bfd_boolean (*_bfd_find_line) (bfd *, struct bfd_symbol **,
 404 .                                 struct bfd_symbol *, const char **,
 405 .                                 unsigned int *);
 406 .  bfd_boolean (*_bfd_find_inliner_info)
 407 .    (bfd *, const char **, const char **, unsigned int *);
 408 . {* Back-door to allow format-aware applications to create debug symbols
 409 .    while using BFD for everything else.  Currently used by the assembler
 410 .    when creating COFF files.  *}
 411 .  asymbol *   (*_bfd_make_debug_symbol) (bfd *, void *, unsigned long size);
 412 .#define bfd_read_minisymbols(b, d, m, s) \
 413 .       BFD_SEND (b, _read_minisymbols, (b, d, m, s))
 414 .  long        (*_read_minisymbols) (bfd *, bfd_boolean, void **,
 415 .                                    unsigned int *);
 416 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
 417 .       BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
 418 .  asymbol *   (*_minisymbol_to_symbol) (bfd *, bfd_boolean, const void *,
 419 .                                        asymbol *);
 420 .
 421 .  {* Routines for relocs.  *}
 422 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
 423 .  NAME##_get_reloc_upper_bound, \
 424 .  NAME##_canonicalize_reloc, \
 425 .  NAME##_set_reloc, \
 426 .  NAME##_bfd_reloc_type_lookup, \
 427 .  NAME##_bfd_reloc_name_lookup
 428 .
 429 .  long        (*_get_reloc_upper_bound) (bfd *, sec_ptr);
 430 .  long        (*_bfd_canonicalize_reloc) (bfd *, sec_ptr, arelent **,
 431 .                                          struct bfd_symbol **);
 432 .  void        (*_bfd_set_reloc) (bfd *, sec_ptr, arelent **, unsigned int);
 433 .  {* See documentation on reloc types.  *}
 434 .  reloc_howto_type *
 435 .              (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
 436 .  reloc_howto_type *
 437 .              (*reloc_name_lookup) (bfd *, const char *);
 438 .
 439 .  {* Routines used when writing an object file.  *}
 440 .#define BFD_JUMP_TABLE_WRITE(NAME) \
 441 .  NAME##_set_arch_mach, \
 442 .  NAME##_set_section_contents
 443 .
 444 .  bfd_boolean (*_bfd_set_arch_mach) (bfd *, enum bfd_architecture,
 445 .                                     unsigned long);
 446 .  bfd_boolean (*_bfd_set_section_contents) (bfd *, sec_ptr, const void *,
 447 .                                            file_ptr, bfd_size_type);
 448 .
 449 .  {* Routines used by the linker.  *}
 450 .#define BFD_JUMP_TABLE_LINK(NAME) \
 451 .  NAME##_sizeof_headers, \
 452 .  NAME##_bfd_get_relocated_section_contents, \
 453 .  NAME##_bfd_relax_section, \
 454 .  NAME##_bfd_link_hash_table_create, \
 455 .  NAME##_bfd_link_add_symbols, \
 456 .  NAME##_bfd_link_just_syms, \
 457 .  NAME##_bfd_copy_link_hash_symbol_type, \
 458 .  NAME##_bfd_final_link, \
 459 .  NAME##_bfd_link_split_section, \
 460 .  NAME##_bfd_link_check_relocs, \
 461 .  NAME##_bfd_gc_sections, \
 462 .  NAME##_bfd_lookup_section_flags, \
 463 .  NAME##_bfd_merge_sections, \
 464 .  NAME##_bfd_is_group_section, \
 465 .  NAME##_bfd_group_name, \
 466 .  NAME##_bfd_discard_group, \
 467 .  NAME##_section_already_linked, \
 468 .  NAME##_bfd_define_common_symbol, \
 469 .  NAME##_bfd_link_hide_symbol, \
 470 .  NAME##_bfd_define_start_stop
 471 .
 472 .  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
 473 .  bfd_byte *  (*_bfd_get_relocated_section_contents) (bfd *,
 474 .                                                      struct bfd_link_info *,
 475 .                                                      struct bfd_link_order *,
 476 .                                                      bfd_byte *, bfd_boolean,
 477 .                                                      struct bfd_symbol **);
 478 .
 479 .  bfd_boolean (*_bfd_relax_section) (bfd *, struct bfd_section *,
 480 .                                     struct bfd_link_info *, bfd_boolean *);
 481 .
 482 .  {* Create a hash table for the linker.  Different backends store
 483 .     different information in this table.  *}
 484 .  struct bfd_link_hash_table *
 485 .              (*_bfd_link_hash_table_create) (bfd *);
 486 .
 487 .  {* Add symbols from this object file into the hash table.  *}
 488 .  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
 489 .
 490 .  {* Indicate that we are only retrieving symbol values from this section.  *}
 491 .  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
 492 .
 493 .  {* Copy the symbol type and other attributes for a linker script
 494 .     assignment of one symbol to another.  *}
 495 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
 496 .       BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
 497 .  void        (*_bfd_copy_link_hash_symbol_type) (bfd *,
 498 .                                                  struct bfd_link_hash_entry *,
 499 .                                                  struct bfd_link_hash_entry *);
 500 .
 501 .  {* Do a link based on the link_order structures attached to each
 502 .     section of the BFD.  *}
 503 .  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
 504 .
 505 .  {* Should this section be split up into smaller pieces during linking.  *}
 506 .  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
 507 .
 508 .  {* Check the relocations in the bfd for validity.  *}
 509 .  bfd_boolean (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
 510 .
 511 .  {* Remove sections that are not referenced from the output.  *}
 512 .  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
 513 .
 514 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
 515 .  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
 516 .                                            struct flag_info *, asection *);
 517 .
 518 .  {* Attempt to merge SEC_MERGE sections.  *}
 519 .  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
 520 .
 521 .  {* Is this section a member of a group?  *}
 522 .  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
 523 .
 524 .  {* The group name, if section is a member of a group.  *}
 525 .  const char *(*_bfd_group_name) (bfd *, const struct bfd_section *);
 526 .
 527 .  {* Discard members of a group.  *}
 528 .  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
 529 .
 530 .  {* Check if SEC has been already linked during a reloceatable or
 531 .     final link.  *}
 532 .  bfd_boolean (*_section_already_linked) (bfd *, asection *,
 533 .                                          struct bfd_link_info *);
 534 .
 535 .  {* Define a common symbol.  *}
 536 .  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
 537 .                                            struct bfd_link_hash_entry *);
 538 .
 539 .  {* Hide a symbol.  *}
 540 .  void (*_bfd_link_hide_symbol) (bfd *, struct bfd_link_info *,
 541 .                                 struct bfd_link_hash_entry *);
 542 .
 543 .  {* Define a __start, __stop, .startof. or .sizeof. symbol.  *}
 544 .  struct bfd_link_hash_entry *
 545 .              (*_bfd_define_start_stop) (struct bfd_link_info *, const char *,
 546 .                                         asection *);
 547 .
 548 .  {* Routines to handle dynamic symbols and relocs.  *}
 549 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
 550 .  NAME##_get_dynamic_symtab_upper_bound, \
 551 .  NAME##_canonicalize_dynamic_symtab, \
 552 .  NAME##_get_synthetic_symtab, \
 553 .  NAME##_get_dynamic_reloc_upper_bound, \
 554 .  NAME##_canonicalize_dynamic_reloc
 555 .
 556 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
 557 .  long        (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
 558 .  {* Read in the dynamic symbols.  *}
 559 .  long        (*_bfd_canonicalize_dynamic_symtab) (bfd *, struct bfd_symbol **);
 560 .  {* Create synthetized symbols.  *}
 561 .  long        (*_bfd_get_synthetic_symtab) (bfd *, long, struct bfd_symbol **,
 562 .                                            long, struct bfd_symbol **,
 563 .                                            struct bfd_symbol **);
 564 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
 565 .  long        (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
 566 .  {* Read in the dynamic relocs.  *}
 567 .  long        (*_bfd_canonicalize_dynamic_reloc) (bfd *, arelent **,
 568 .                                                  struct bfd_symbol **);
 569 .
 570
 571 A pointer to an alternative bfd_target in case the current one is not
 572 satisfactory.  This can happen when the target cpu supports both big
 573 and little endian code, and target chosen by the linker has the wrong
 574 endianness.  The function open_output() in ld/ldlang.c uses this field
 575 to find an alternative output format that is suitable.
 576
 577 .  {* Opposite endian version of this target.  *}
 578 .  const struct bfd_target *alternative_target;
 579 .
 580
 581 .  {* Data for use by back-end routines, which isn't
 582 .     generic enough to belong in this structure.  *}
 583 .  const void *backend_data;
 584 .
 585 .} bfd_target;
 586 .
 587 */
 588
 589 /* All known xvecs (even those that don't compile on all systems).
 590    Alphabetized for easy reference.
 591    They are listed a second time below, since
 592    we can't intermix extern's and initializers.  */
 593 extern const bfd_target aarch64_elf32_be_vec;
 594 extern const bfd_target aarch64_elf32_le_vec;
 595 extern const bfd_target aarch64_elf64_be_vec;
 596 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
 597 extern const bfd_target aarch64_elf64_le_vec;
 598 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
 599 extern const bfd_target aarch64_mach_o_vec;
 600 extern const bfd_target alpha_ecoff_le_vec;
 601 extern const bfd_target alpha_elf64_vec;
 602 extern const bfd_target alpha_elf64_fbsd_vec;
 603 extern const bfd_target alpha_vms_vec;
 604 extern const bfd_target alpha_vms_lib_txt_vec;
 605 extern const bfd_target am33_elf32_linux_vec;
 606 extern const bfd_target aout_vec;
 607 extern const bfd_target arc_elf32_be_vec;
 608 extern const bfd_target arc_elf32_le_vec;
 609 extern const bfd_target arm_elf32_be_vec;
 610 extern const bfd_target arm_elf32_le_vec;
 611 extern const bfd_target arm_elf32_fdpic_be_vec;
 612 extern const bfd_target arm_elf32_fdpic_le_vec;
 613 extern const bfd_target arm_elf32_nacl_be_vec;
 614 extern const bfd_target arm_elf32_nacl_le_vec;
 615 extern const bfd_target arm_elf32_symbian_be_vec;
 616 extern const bfd_target arm_elf32_symbian_le_vec;
 617 extern const bfd_target arm_elf32_vxworks_be_vec;
 618 extern const bfd_target arm_elf32_vxworks_le_vec;
 619 extern const bfd_target arm_mach_o_vec;
 620 extern const bfd_target arm_pe_be_vec;
 621 extern const bfd_target arm_pe_le_vec;
 622 extern const bfd_target arm_pe_wince_be_vec;
 623 extern const bfd_target arm_pe_wince_le_vec;
 624 extern const bfd_target arm_pei_be_vec;
 625 extern const bfd_target arm_pei_le_vec;
 626 extern const bfd_target arm_pei_wince_be_vec;
 627 extern const bfd_target arm_pei_wince_le_vec;
 628 extern const bfd_target avr_elf32_vec;
 629 extern const bfd_target bfin_elf32_vec;
 630 extern const bfd_target bfin_elf32_fdpic_vec;
 631 extern const bfd_target cr16_elf32_vec;
 632 extern const bfd_target cr16c_elf32_vec;
 633 extern const bfd_target cris_aout_vec;
 634 extern const bfd_target cris_elf32_vec;
 635 extern const bfd_target cris_elf32_us_vec;
 636 extern const bfd_target crx_elf32_vec;
 637 extern const bfd_target csky_elf32_be_vec;
 638 extern const bfd_target csky_elf32_le_vec;
 639 extern const bfd_target d10v_elf32_vec;
 640 extern const bfd_target d30v_elf32_vec;
 641 extern const bfd_target dlx_elf32_be_vec;
 642 extern const bfd_target elf32_be_vec;
 643 extern const bfd_target elf32_le_vec;
 644 extern const bfd_target elf64_be_vec;
 645 extern const bfd_target elf64_le_vec;
 646 extern const bfd_target bpf_elf64_le_vec;
 647 extern const bfd_target bpf_elf64_be_vec;
 648 extern const bfd_target epiphany_elf32_vec;
 649 extern const bfd_target fr30_elf32_vec;
 650 extern const bfd_target frv_elf32_vec;
 651 extern const bfd_target frv_elf32_fdpic_vec;
 652 extern const bfd_target h8300_elf32_vec;
 653 extern const bfd_target h8300_elf32_linux_vec;
 654 extern const bfd_target hppa_elf32_vec;
 655 extern const bfd_target hppa_elf32_linux_vec;
 656 extern const bfd_target hppa_elf32_nbsd_vec;
 657 extern const bfd_target hppa_elf64_vec;
 658 extern const bfd_target hppa_elf64_linux_vec;
 659 extern const bfd_target hppa_som_vec;
 660 extern const bfd_target i386_aout_vec;
 661 extern const bfd_target i386_aout_bsd_vec;
 662 extern const bfd_target i386_aout_lynx_vec;
 663 extern const bfd_target i386_coff_vec;
 664 extern const bfd_target i386_coff_go32_vec;
 665 extern const bfd_target i386_coff_go32stubbed_vec;
 666 extern const bfd_target i386_coff_lynx_vec;
 667 extern const bfd_target i386_elf32_vec;
 668 extern const bfd_target i386_elf32_fbsd_vec;
 669 extern const bfd_target i386_elf32_nacl_vec;
 670 extern const bfd_target i386_elf32_sol2_vec;
 671 extern const bfd_target i386_elf32_vxworks_vec;
 672 extern const bfd_target i386_mach_o_vec;
 673 extern const bfd_target i386_msdos_vec;
 674 extern const bfd_target i386_pe_vec;
 675 extern const bfd_target i386_pei_vec;
 676 extern const bfd_target iamcu_elf32_vec;
 677 extern const bfd_target ia64_elf32_be_vec;
 678 extern const bfd_target ia64_elf32_hpux_be_vec;
 679 extern const bfd_target ia64_elf64_be_vec;
 680 extern const bfd_target ia64_elf64_le_vec;
 681 extern const bfd_target ia64_elf64_hpux_be_vec;
 682 extern const bfd_target ia64_elf64_vms_vec;
 683 extern const bfd_target ia64_pei_vec;
 684 extern const bfd_target ip2k_elf32_vec;
 685 extern const bfd_target iq2000_elf32_vec;
 686 extern const bfd_target k1om_elf64_vec;
 687 extern const bfd_target k1om_elf64_fbsd_vec;
 688 extern const bfd_target l1om_elf64_vec;
 689 extern const bfd_target l1om_elf64_fbsd_vec;
 690 extern const bfd_target lm32_elf32_vec;
 691 extern const bfd_target lm32_elf32_fdpic_vec;
 692 extern const bfd_target m32c_elf32_vec;
 693 extern const bfd_target m32r_elf32_vec;
 694 extern const bfd_target m32r_elf32_le_vec;
 695 extern const bfd_target m32r_elf32_linux_vec;
 696 extern const bfd_target m32r_elf32_linux_le_vec;
 697 extern const bfd_target m68hc11_elf32_vec;
 698 extern const bfd_target m68hc12_elf32_vec;
 699 extern const bfd_target m68k_elf32_vec;
 700 extern const bfd_target s12z_elf32_vec;
 701 extern const bfd_target mach_o_be_vec;
 702 extern const bfd_target mach_o_le_vec;
 703 extern const bfd_target mach_o_fat_vec;
 704 extern const bfd_target mcore_elf32_be_vec;
 705 extern const bfd_target mcore_elf32_le_vec;
 706 extern const bfd_target mcore_pe_be_vec;
 707 extern const bfd_target mcore_pe_le_vec;
 708 extern const bfd_target mcore_pei_be_vec;
 709 extern const bfd_target mcore_pei_le_vec;
 710 extern const bfd_target mep_elf32_vec;
 711 extern const bfd_target mep_elf32_le_vec;
 712 extern const bfd_target metag_elf32_vec;
 713 extern const bfd_target microblaze_elf32_vec;
 714 extern const bfd_target microblaze_elf32_le_vec;
 715 extern const bfd_target mips_ecoff_be_vec;
 716 extern const bfd_target mips_ecoff_le_vec;
 717 extern const bfd_target mips_ecoff_bele_vec;
 718 extern const bfd_target mips_elf32_be_vec;
 719 extern const bfd_target mips_elf32_le_vec;
 720 extern const bfd_target mips_elf32_n_be_vec;
 721 extern const bfd_target mips_elf32_n_le_vec;
 722 extern const bfd_target mips_elf32_ntrad_be_vec;
 723 extern const bfd_target mips_elf32_ntrad_le_vec;
 724 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
 725 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
 726 extern const bfd_target mips_elf32_trad_be_vec;
 727 extern const bfd_target mips_elf32_trad_le_vec;
 728 extern const bfd_target mips_elf32_tradfbsd_be_vec;
 729 extern const bfd_target mips_elf32_tradfbsd_le_vec;
 730 extern const bfd_target mips_elf32_vxworks_be_vec;
 731 extern const bfd_target mips_elf32_vxworks_le_vec;
 732 extern const bfd_target mips_elf64_be_vec;
 733 extern const bfd_target mips_elf64_le_vec;
 734 extern const bfd_target mips_elf64_trad_be_vec;
 735 extern const bfd_target mips_elf64_trad_le_vec;
 736 extern const bfd_target mips_elf64_tradfbsd_be_vec;
 737 extern const bfd_target mips_elf64_tradfbsd_le_vec;
 738 extern const bfd_target mmix_elf64_vec;
 739 extern const bfd_target mmix_mmo_vec;
 740 extern const bfd_target mn10200_elf32_vec;
 741 extern const bfd_target mn10300_elf32_vec;
 742 extern const bfd_target moxie_elf32_be_vec;
 743 extern const bfd_target moxie_elf32_le_vec;
 744 extern const bfd_target msp430_elf32_vec;
 745 extern const bfd_target msp430_elf32_ti_vec;
 746 extern const bfd_target mt_elf32_vec;
 747 extern const bfd_target nds32_elf32_be_vec;
 748 extern const bfd_target nds32_elf32_le_vec;
 749 extern const bfd_target nds32_elf32_linux_be_vec;
 750 extern const bfd_target nds32_elf32_linux_le_vec;
 751 extern const bfd_target nfp_elf64_vec;
 752 extern const bfd_target nios2_elf32_be_vec;
 753 extern const bfd_target nios2_elf32_le_vec;
 754 extern const bfd_target ns32k_aout_pc532mach_vec;
 755 extern const bfd_target ns32k_aout_pc532nbsd_vec;
 756 extern const bfd_target or1k_elf32_vec;
 757 extern const bfd_target pdp11_aout_vec;
 758 extern const bfd_target pef_vec;
 759 extern const bfd_target pef_xlib_vec;
 760 extern const bfd_target pj_elf32_vec;
 761 extern const bfd_target pj_elf32_le_vec;
 762 extern const bfd_target plugin_vec;
 763 extern const bfd_target powerpc_boot_vec;
 764 extern const bfd_target powerpc_elf32_vec;
 765 extern const bfd_target powerpc_elf32_le_vec;
 766 extern const bfd_target powerpc_elf32_fbsd_vec;
 767 extern const bfd_target powerpc_elf32_vxworks_vec;
 768 extern const bfd_target powerpc_elf64_vec;
 769 extern const bfd_target powerpc_elf64_le_vec;
 770 extern const bfd_target powerpc_elf64_fbsd_vec;
 771 extern const bfd_target powerpc_pe_vec;
 772 extern const bfd_target powerpc_pe_le_vec;
 773 extern const bfd_target powerpc_pei_vec;
 774 extern const bfd_target powerpc_pei_le_vec;
 775 extern const bfd_target powerpc_xcoff_vec;
 776 extern const bfd_target pru_elf32_vec;
 777 extern const bfd_target riscv_elf32_vec;
 778 extern const bfd_target riscv_elf64_vec;
 779 extern const bfd_target rl78_elf32_vec;
 780 extern const bfd_target rs6000_xcoff64_vec;
 781 extern const bfd_target rs6000_xcoff64_aix_vec;
 782 extern const bfd_target rs6000_xcoff_vec;
 783 extern const bfd_target rx_elf32_be_vec;
 784 extern const bfd_target rx_elf32_be_ns_vec;
 785 extern const bfd_target rx_elf32_le_vec;
 786 extern const bfd_target rx_elf32_linux_le_vec;
 787 extern const bfd_target s390_elf32_vec;
 788 extern const bfd_target s390_elf64_vec;
 789 extern const bfd_target score_elf32_be_vec;
 790 extern const bfd_target score_elf32_le_vec;
 791 extern const bfd_target sh_coff_vec;
 792 extern const bfd_target sh_coff_le_vec;
 793 extern const bfd_target sh_coff_small_vec;
 794 extern const bfd_target sh_coff_small_le_vec;
 795 extern const bfd_target sh_elf32_vec;
 796 extern const bfd_target sh_elf32_le_vec;
 797 extern const bfd_target sh_elf32_fdpic_be_vec;
 798 extern const bfd_target sh_elf32_fdpic_le_vec;
 799 extern const bfd_target sh_elf32_linux_vec;
 800 extern const bfd_target sh_elf32_linux_be_vec;
 801 extern const bfd_target sh_elf32_nbsd_vec;
 802 extern const bfd_target sh_elf32_nbsd_le_vec;
 803 extern const bfd_target sh_elf32_vxworks_vec;
 804 extern const bfd_target sh_elf32_vxworks_le_vec;
 805 extern const bfd_target sh_pe_le_vec;
 806 extern const bfd_target sh_pei_le_vec;
 807 extern const bfd_target sparc_elf32_vec;
 808 extern const bfd_target sparc_elf32_sol2_vec;
 809 extern const bfd_target sparc_elf32_vxworks_vec;
 810 extern const bfd_target sparc_elf64_vec;
 811 extern const bfd_target sparc_elf64_fbsd_vec;
 812 extern const bfd_target sparc_elf64_sol2_vec;
 813 extern const bfd_target spu_elf32_vec;
 814 extern const bfd_target sym_vec;
 815 extern const bfd_target tic30_aout_vec;
 816 extern const bfd_target tic30_coff_vec;
 817 extern const bfd_target tic4x_coff0_vec;
 818 extern const bfd_target tic4x_coff0_beh_vec;
 819 extern const bfd_target tic4x_coff1_vec;
 820 extern const bfd_target tic4x_coff1_beh_vec;
 821 extern const bfd_target tic4x_coff2_vec;
 822 extern const bfd_target tic4x_coff2_beh_vec;
 823 extern const bfd_target tic54x_coff0_vec;
 824 extern const bfd_target tic54x_coff0_beh_vec;
 825 extern const bfd_target tic54x_coff1_vec;
 826 extern const bfd_target tic54x_coff1_beh_vec;
 827 extern const bfd_target tic54x_coff2_vec;
 828 extern const bfd_target tic54x_coff2_beh_vec;
 829 extern const bfd_target tic6x_elf32_be_vec;
 830 extern const bfd_target tic6x_elf32_le_vec;
 831 extern const bfd_target tic6x_elf32_c6000_be_vec;
 832 extern const bfd_target tic6x_elf32_c6000_le_vec;
 833 extern const bfd_target tic6x_elf32_linux_be_vec;
 834 extern const bfd_target tic6x_elf32_linux_le_vec;
 835 extern const bfd_target tic80_coff_vec;
 836 extern const bfd_target tilegx_elf32_be_vec;
 837 extern const bfd_target tilegx_elf32_le_vec;
 838 extern const bfd_target tilegx_elf64_be_vec;
 839 extern const bfd_target tilegx_elf64_le_vec;
 840 extern const bfd_target tilepro_elf32_vec;
 841 extern const bfd_target v800_elf32_vec;
 842 extern const bfd_target v850_elf32_vec;
 843 extern const bfd_target ft32_elf32_vec;
 844 extern const bfd_target vax_aout_1knbsd_vec;
 845 extern const bfd_target vax_aout_nbsd_vec;
 846 extern const bfd_target vax_elf32_vec;
 847 extern const bfd_target visium_elf32_vec;
 848 extern const bfd_target wasm_vec;
 849 extern const bfd_target wasm32_elf32_vec;
 850 extern const bfd_target x86_64_coff_vec;
 851 extern const bfd_target x86_64_elf32_vec;
 852 extern const bfd_target x86_64_elf32_nacl_vec;
 853 extern const bfd_target x86_64_elf64_vec;
 854 extern const bfd_target x86_64_elf64_cloudabi_vec;
 855 extern const bfd_target x86_64_elf64_fbsd_vec;
 856 extern const bfd_target x86_64_elf64_nacl_vec;
 857 extern const bfd_target x86_64_elf64_sol2_vec;
 858 extern const bfd_target x86_64_mach_o_vec;
 859 extern const bfd_target x86_64_pe_vec;
 860 extern const bfd_target x86_64_pe_be_vec;
 861 extern const bfd_target x86_64_pei_vec;
 862 extern const bfd_target xc16x_elf32_vec;
 863 extern const bfd_target xgate_elf32_vec;
 864 extern const bfd_target xstormy16_elf32_vec;
 865 extern const bfd_target xtensa_elf32_be_vec;
 866 extern const bfd_target xtensa_elf32_le_vec;
 867 extern const bfd_target z80_coff_vec;
 868 extern const bfd_target z8k_coff_vec;
 869
 870 /* These are always included.  */
 871 extern const bfd_target srec_vec;
 872 extern const bfd_target symbolsrec_vec;
 873 extern const bfd_target verilog_vec;
 874 extern const bfd_target tekhex_vec;
 875 extern const bfd_target binary_vec;
 876 extern const bfd_target ihex_vec;
 877
 878 /* All of the xvecs for core files.  */
 879 extern const bfd_target core_aix386_vec;
 880 extern const bfd_target core_cisco_be_vec;
 881 extern const bfd_target core_cisco_le_vec;
 882 extern const bfd_target core_hppabsd_vec;
 883 extern const bfd_target core_hpux_vec;
 884 extern const bfd_target core_irix_vec;
 885 extern const bfd_target core_netbsd_vec;
 886 extern const bfd_target core_osf_vec;
 887 extern const bfd_target core_ptrace_vec;
 888 extern const bfd_target core_sco5_vec;
 889 extern const bfd_target core_trad_vec;
 890
 891 static const bfd_target * const _bfd_target_vector[] =
 892 {
 893 #ifdef SELECT_VECS
 894
 895         SELECT_VECS,
 896
 897 #else /* not SELECT_VECS */
 898
 899 #ifdef DEFAULT_VECTOR
 900         &DEFAULT_VECTOR,
 901 #endif
 902         /* This list is alphabetized to make it easy to compare
 903            with other vector lists -- the decls above and
 904            the case statement in configure.ac.
 905            Try to keep it in order when adding new targets, and
 906            use a name of the form <cpu>_<format>_<other>_<endian>_vec.
 907            Note that sorting is done as if _<endian>_vec wasn't present.
 908            Vectors that don't compile on all systems, or aren't finished,
 909            should have an entry here with #if 0 around it, to show that
 910            it wasn't omitted by mistake.  */
 911 #ifdef BFD64
 912         &aarch64_elf32_be_vec,
 913         &aarch64_elf32_le_vec,
 914         &aarch64_elf64_be_vec,
 915         &aarch64_elf64_be_cloudabi_vec,
 916         &aarch64_elf64_le_vec,
 917         &aarch64_elf64_le_cloudabi_vec,
 918         &aarch64_mach_o_vec,
 919 #endif
 920
 921 #ifdef BFD64
 922         &alpha_ecoff_le_vec,
 923         &alpha_elf64_vec,
 924         &alpha_elf64_fbsd_vec,
 925         &alpha_vms_vec,
 926 #endif
 927         &alpha_vms_lib_txt_vec,
 928
 929         &am33_elf32_linux_vec,
 930
 931 #if 0
 932         /* Since a.out files lack decent magic numbers, no way to recognize
 933            which kind of a.out file it is.  */
 934         &aout_vec,
 935 #endif
 936
 937         &arc_elf32_be_vec,
 938         &arc_elf32_le_vec,
 939
 940         &arm_elf32_be_vec,
 941         &arm_elf32_le_vec,
 942         &arm_elf32_fdpic_be_vec,
 943         &arm_elf32_fdpic_le_vec,
 944         &arm_elf32_symbian_be_vec,
 945         &arm_elf32_symbian_le_vec,
 946         &arm_elf32_vxworks_be_vec,
 947         &arm_elf32_vxworks_le_vec,
 948         &arm_mach_o_vec,
 949         &arm_pe_be_vec,
 950         &arm_pe_le_vec,
 951         &arm_pe_wince_be_vec,
 952         &arm_pe_wince_le_vec,
 953         &arm_pei_be_vec,
 954         &arm_pei_le_vec,
 955         &arm_pei_wince_be_vec,
 956         &arm_pei_wince_le_vec,
 957
 958         &avr_elf32_vec,
 959
 960         &bfin_elf32_vec,
 961         &bfin_elf32_fdpic_vec,
 962
 963         &cr16_elf32_vec,
 964         &cr16c_elf32_vec,
 965
 966         &cris_aout_vec,
 967         &cris_elf32_vec,
 968         &cris_elf32_us_vec,
 969
 970         &crx_elf32_vec,
 971
 972         &csky_elf32_be_vec,
 973         &csky_elf32_le_vec,
 974
 975         &d10v_elf32_vec,
 976         &d30v_elf32_vec,
 977
 978         &dlx_elf32_be_vec,
 979
 980         /* This, and other vectors, may not be used in any *.mt configuration.
 981            But that does not mean they are unnecessary.  If configured with
 982            --enable-targets=all, objdump or gdb should be able to examine
 983            the file even if we don't recognize the machine type.  */
 984         &elf32_be_vec,
 985         &elf32_le_vec,
 986 #ifdef BFD64
 987         &elf64_be_vec,
 988         &elf64_le_vec,
 989 #endif
 990
 991         &epiphany_elf32_vec,
 992
 993         &fr30_elf32_vec,
 994
 995         &frv_elf32_vec,
 996         &frv_elf32_fdpic_vec,
 997
 998         &h8300_elf32_vec,
 999         &h8300_elf32_linux_vec,
1000
1001         &hppa_elf32_vec,
1002         &hppa_elf32_linux_vec,
1003         &hppa_elf32_nbsd_vec,
1004 #ifdef BFD64
1005         &hppa_elf64_vec,
1006         &hppa_elf64_linux_vec,
1007 #endif
1008         &hppa_som_vec,
1009
1010         &i386_aout_vec,
1011         &i386_aout_bsd_vec,
1012         &i386_aout_lynx_vec,
1013         &i386_coff_vec,
1014         &i386_coff_go32_vec,
1015         &i386_coff_go32stubbed_vec,
1016         &i386_coff_lynx_vec,
1017         &i386_elf32_vec,
1018         &i386_elf32_fbsd_vec,
1019         &i386_elf32_nacl_vec,
1020         &i386_elf32_sol2_vec,
1021         &i386_elf32_vxworks_vec,
1022         &i386_mach_o_vec,
1023         &i386_msdos_vec,
1024         &i386_pe_vec,
1025         &i386_pei_vec,
1026
1027         &iamcu_elf32_vec,
1028
1029 #ifdef BFD64
1030         &bpf_elf64_be_vec,
1031         &bpf_elf64_le_vec,
1032 #endif
1033
1034 #ifdef BFD64
1035 #if 0
1036         &ia64_elf32_be_vec,
1037 #endif
1038         &ia64_elf32_hpux_be_vec,
1039         &ia64_elf64_be_vec,
1040         &ia64_elf64_le_vec,
1041         &ia64_elf64_hpux_be_vec,
1042         &ia64_elf64_vms_vec,
1043         &ia64_pei_vec,
1044 #endif
1045
1046         &ip2k_elf32_vec,
1047         &iq2000_elf32_vec,
1048
1049 #ifdef BFD64
1050         &k1om_elf64_vec,
1051         &k1om_elf64_fbsd_vec,
1052         &l1om_elf64_vec,
1053         &l1om_elf64_fbsd_vec,
1054 #endif
1055
1056         &lm32_elf32_vec,
1057
1058         &m32c_elf32_vec,
1059
1060         &m32r_elf32_vec,
1061         &m32r_elf32_le_vec,
1062         &m32r_elf32_linux_vec,
1063         &m32r_elf32_linux_le_vec,
1064
1065         &m68hc11_elf32_vec,
1066         &m68hc12_elf32_vec,
1067
1068         &m68k_elf32_vec,
1069
1070         &s12z_elf32_vec,
1071
1072         &mach_o_be_vec,
1073         &mach_o_le_vec,
1074         &mach_o_fat_vec,
1075
1076         &mcore_elf32_be_vec,
1077         &mcore_elf32_le_vec,
1078         &mcore_pe_be_vec,
1079         &mcore_pe_le_vec,
1080         &mcore_pei_be_vec,
1081         &mcore_pei_le_vec,
1082
1083         &mep_elf32_vec,
1084
1085         &metag_elf32_vec,
1086
1087         &microblaze_elf32_vec,
1088
1089         &mips_ecoff_be_vec,
1090         &mips_ecoff_le_vec,
1091         &mips_ecoff_bele_vec,
1092 #ifdef BFD64
1093         &mips_elf32_be_vec,
1094         &mips_elf32_le_vec,
1095         &mips_elf32_n_be_vec,
1096         &mips_elf32_n_le_vec,
1097         &mips_elf32_ntrad_be_vec,
1098         &mips_elf32_ntrad_le_vec,
1099         &mips_elf32_ntradfbsd_be_vec,
1100         &mips_elf32_ntradfbsd_le_vec,
1101         &mips_elf32_trad_be_vec,
1102         &mips_elf32_trad_le_vec,
1103         &mips_elf32_tradfbsd_be_vec,
1104         &mips_elf32_tradfbsd_le_vec,
1105         &mips_elf32_vxworks_be_vec,
1106         &mips_elf32_vxworks_le_vec,
1107         &mips_elf64_be_vec,
1108         &mips_elf64_le_vec,
1109         &mips_elf64_trad_be_vec,
1110         &mips_elf64_trad_le_vec,
1111         &mips_elf64_tradfbsd_be_vec,
1112         &mips_elf64_tradfbsd_le_vec,
1113 #endif
1114
1115 #ifdef BFD64
1116         &mmix_elf64_vec,
1117         &mmix_mmo_vec,
1118 #endif
1119
1120         &mn10200_elf32_vec,
1121         &mn10300_elf32_vec,
1122
1123         &moxie_elf32_be_vec,
1124         &moxie_elf32_le_vec,
1125
1126         &msp430_elf32_vec,
1127         &msp430_elf32_ti_vec,
1128
1129         &mt_elf32_vec,
1130
1131         &nds32_elf32_be_vec,
1132         &nds32_elf32_le_vec,
1133         &nds32_elf32_linux_be_vec,
1134         &nds32_elf32_linux_le_vec,
1135
1136 #ifdef BFD64
1137         &nfp_elf64_vec,
1138 #endif
1139
1140         &nios2_elf32_be_vec,
1141         &nios2_elf32_le_vec,
1142
1143         &ns32k_aout_pc532mach_vec,
1144         &ns32k_aout_pc532nbsd_vec,
1145
1146         &or1k_elf32_vec,
1147
1148         &pdp11_aout_vec,
1149
1150         &pef_vec,
1151         &pef_xlib_vec,
1152
1153         &pj_elf32_vec,
1154         &pj_elf32_le_vec,
1155
1156         &powerpc_boot_vec,
1157         &powerpc_elf32_vec,
1158         &powerpc_elf32_le_vec,
1159         &powerpc_elf32_fbsd_vec,
1160         &powerpc_elf32_vxworks_vec,
1161 #ifdef BFD64
1162         &powerpc_elf64_vec,
1163         &powerpc_elf64_le_vec,
1164         &powerpc_elf64_fbsd_vec,
1165 #endif
1166         &powerpc_pe_vec,
1167         &powerpc_pe_le_vec,
1168         &powerpc_pei_vec,
1169         &powerpc_pei_le_vec,
1170 #if 0
1171         /* This has the same magic number as RS/6000.  */
1172         &powerpc_xcoff_vec,
1173 #endif
1174
1175         &pru_elf32_vec,
1176
1177 #ifdef BFD64
1178         &riscv_elf32_vec,
1179         &riscv_elf64_vec,
1180 #endif
1181         &rl78_elf32_vec,
1182
1183 #ifdef BFD64
1184         &rs6000_xcoff64_vec,
1185         &rs6000_xcoff64_aix_vec,
1186 #endif
1187         &rs6000_xcoff_vec,
1188
1189         &rx_elf32_be_vec,
1190         &rx_elf32_be_ns_vec,
1191         &rx_elf32_le_vec,
1192
1193         &s390_elf32_vec,
1194 #ifdef BFD64
1195         &s390_elf64_vec,
1196 #endif
1197
1198 #ifdef BFD64
1199         &score_elf32_be_vec,
1200         &score_elf32_le_vec,
1201 #endif
1202
1203         &sh_coff_vec,
1204         &sh_coff_le_vec,
1205         &sh_coff_small_vec,
1206         &sh_coff_small_le_vec,
1207         &sh_elf32_vec,
1208         &sh_elf32_le_vec,
1209         &sh_elf32_fdpic_be_vec,
1210         &sh_elf32_fdpic_le_vec,
1211         &sh_elf32_linux_vec,
1212         &sh_elf32_linux_be_vec,
1213         &sh_elf32_nbsd_vec,
1214         &sh_elf32_nbsd_le_vec,
1215         &sh_elf32_vxworks_vec,
1216         &sh_elf32_vxworks_le_vec,
1217         &sh_pe_le_vec,
1218         &sh_pei_le_vec,
1219
1220         &sparc_elf32_vec,
1221         &sparc_elf32_sol2_vec,
1222         &sparc_elf32_vxworks_vec,
1223 #ifdef BFD64
1224         &sparc_elf64_vec,
1225         &sparc_elf64_fbsd_vec,
1226         &sparc_elf64_sol2_vec,
1227 #endif
1228
1229         &spu_elf32_vec,
1230
1231         &sym_vec,
1232
1233         &tic30_aout_vec,
1234         &tic30_coff_vec,
1235         &tic54x_coff0_beh_vec,
1236         &tic54x_coff0_vec,
1237         &tic54x_coff1_beh_vec,
1238         &tic54x_coff1_vec,
1239         &tic54x_coff2_beh_vec,
1240         &tic54x_coff2_vec,
1241         &tic6x_elf32_be_vec,
1242         &tic6x_elf32_le_vec,
1243         &tic80_coff_vec,
1244
1245         &tilegx_elf32_be_vec,
1246         &tilegx_elf32_le_vec,
1247 #ifdef BFD64
1248         &tilegx_elf64_be_vec,
1249         &tilegx_elf64_le_vec,
1250 #endif
1251         &tilepro_elf32_vec,
1252
1253         &ft32_elf32_vec,
1254
1255         &v800_elf32_vec,
1256         &v850_elf32_vec,
1257
1258         &vax_aout_1knbsd_vec,
1259         &vax_aout_nbsd_vec,
1260         &vax_elf32_vec,
1261
1262         &visium_elf32_vec,
1263
1264         &wasm_vec,
1265         &wasm32_elf32_vec,
1266
1267 #ifdef BFD64
1268         &x86_64_coff_vec,
1269         &x86_64_elf32_vec,
1270         &x86_64_elf32_nacl_vec,
1271         &x86_64_elf64_vec,
1272         &x86_64_elf64_cloudabi_vec,
1273         &x86_64_elf64_fbsd_vec,
1274         &x86_64_elf64_nacl_vec,
1275         &x86_64_elf64_sol2_vec,
1276         &x86_64_mach_o_vec,
1277         &x86_64_pe_vec,
1278         &x86_64_pe_be_vec,
1279         &x86_64_pei_vec,
1280 #endif
1281
1282         &xc16x_elf32_vec,
1283
1284         &xgate_elf32_vec,
1285
1286         &xstormy16_elf32_vec,
1287
1288         &xtensa_elf32_be_vec,
1289         &xtensa_elf32_le_vec,
1290
1291         &z80_coff_vec,
1292
1293         &z8k_coff_vec,
1294 #endif /* not SELECT_VECS */
1295
1296 /* Always support S-records, for convenience.  */
1297         &srec_vec,
1298         &symbolsrec_vec,
1299 /* And verilog.  */
1300         &verilog_vec,
1301 /* And tekhex */
1302         &tekhex_vec,
1303 /* Likewise for binary output.  */
1304         &binary_vec,
1305 /* Likewise for ihex.  */
1306         &ihex_vec,
1307
1308 #if BFD_SUPPORTS_PLUGINS
1309         &plugin_vec,
1310 #endif
1311
1312 /* Add any required traditional-core-file-handler.  */
1313
1314 #ifdef AIX386_CORE
1315         &core_aix386_vec,
1316 #endif
1317 #if 0
1318         /* We don't include cisco_core_*_vec.  Although it has a magic number,
1319            the magic number isn't at the beginning of the file, and thus
1320            might spuriously match other kinds of files.  */
1321         &core_cisco_be_vec,
1322         &core_cisco_le_vec,
1323 #endif
1324 #ifdef HPPABSD_CORE
1325         &core_hppabsd_vec,
1326 #endif
1327 #ifdef HPUX_CORE
1328         &core_hpux_vec,
1329 #endif
1330 #ifdef IRIX_CORE
1331         &core_irix_vec,
1332 #endif
1333 #ifdef NETBSD_CORE
1334         &core_netbsd_vec,
1335 #endif
1336 #ifdef OSF_CORE
1337         &core_osf_vec,
1338 #endif
1339 #ifdef PTRACE_CORE
1340         &core_ptrace_vec,
1341 #endif
1342 #ifdef SCO5_CORE
1343         &core_sco5_vec,
1344 #endif
1345 #ifdef TRAD_CORE
1346         &core_trad_vec,
1347 #endif
1348
1349         NULL /* end of list marker */
1350 };
1351 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1352
1353 /* bfd_default_vector[0] contains either the address of the default vector,
1354    if there is one, or zero if there isn't.  */
1355
1356 const bfd_target *bfd_default_vector[] = {
1357 #ifdef DEFAULT_VECTOR
1358         &DEFAULT_VECTOR,
1359 #endif
1360         NULL
1361 };
1362
1363 /* bfd_associated_vector[] contains the associated target vectors used
1364    to reduce the ambiguity in bfd_check_format_matches.  */
1365
1366 static const bfd_target *_bfd_associated_vector[] = {
1367 #ifdef ASSOCIATED_VECS
1368         ASSOCIATED_VECS,
1369 #endif
1370         NULL
1371 };
1372 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
1373
1374 /* When there is an ambiguous match, bfd_check_format_matches puts the
1375    names of the matching targets in an array.  This variable is the maximum
1376    number of entries that the array could possibly need.  */
1377 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1378 \f
1379 /* This array maps configuration triplets onto BFD vectors.  */
1380
1381 struct targmatch
1382 {
1383   /* The configuration triplet.  */
1384   const char *triplet;
1385   /* The BFD vector.  If this is NULL, then the vector is found by
1386      searching forward for the next structure with a non NULL vector
1387      field.  */
1388   const bfd_target *vector;
1389 };
1390
1391 /* targmatch.h is built by Makefile out of config.bfd.  */
1392 static const struct targmatch bfd_target_match[] = {
1393 #include "targmatch.h"
1394   { NULL, NULL }
1395 };
1396
1397 /* Find a target vector, given a name or configuration triplet.  */
1398
1399 static const bfd_target *
1400 find_target (const char *name)
1401 {
1402   const bfd_target * const *target;
1403   const struct targmatch *match;
1404
1405   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1406     if (strcmp (name, (*target)->name) == 0)
1407       return *target;
1408
1409   /* If we couldn't match on the exact name, try matching on the
1410      configuration triplet.  FIXME: We should run the triplet through
1411      config.sub first, but that is hard.  */
1412   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1413     {
1414       if (fnmatch (match->triplet, name, 0) == 0)
1415         {
1416           while (match->vector == NULL)
1417             ++match;
1418           return match->vector;
1419         }
1420     }
1421
1422   bfd_set_error (bfd_error_invalid_target);
1423   return NULL;
1424 }
1425
1426 /*
1427 FUNCTION
1428         bfd_set_default_target
1429
1430 SYNOPSIS
1431         bfd_boolean bfd_set_default_target (const char *name);
1432
1433 DESCRIPTION
1434         Set the default target vector to use when recognizing a BFD.
1435         This takes the name of the target, which may be a BFD target
1436         name or a configuration triplet.
1437 */
1438
1439 bfd_boolean
1440 bfd_set_default_target (const char *name)
1441 {
1442   const bfd_target *target;
1443
1444   if (bfd_default_vector[0] != NULL
1445       && strcmp (name, bfd_default_vector[0]->name) == 0)
1446     return TRUE;
1447
1448   target = find_target (name);
1449   if (target == NULL)
1450     return FALSE;
1451
1452   bfd_default_vector[0] = target;
1453   return TRUE;
1454 }
1455
1456 /*
1457 FUNCTION
1458         bfd_find_target
1459
1460 SYNOPSIS
1461         const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1462
1463 DESCRIPTION
1464         Return a pointer to the transfer vector for the object target
1465         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1466         choose the one in the environment variable <<GNUTARGET>>; if
1467         that is null or not defined, then choose the first entry in the
1468         target list.  Passing in the string "default" or setting the
1469         environment variable to "default" will cause the first entry in
1470         the target list to be returned, and "target_defaulted" will be
1471         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1472         <<bfd_check_format>> to loop over all the targets to find the
1473         one that matches the file being read.
1474 */
1475
1476 const bfd_target *
1477 bfd_find_target (const char *target_name, bfd *abfd)
1478 {
1479   const char *targname;
1480   const bfd_target *target;
1481
1482   if (target_name != NULL)
1483     targname = target_name;
1484   else
1485     targname = getenv ("GNUTARGET");
1486
1487   /* This is safe; the vector cannot be null.  */
1488   if (targname == NULL || strcmp (targname, "default") == 0)
1489     {
1490       if (bfd_default_vector[0] != NULL)
1491         target = bfd_default_vector[0];
1492       else
1493         target = bfd_target_vector[0];
1494       if (abfd)
1495         {
1496           abfd->xvec = target;
1497           abfd->target_defaulted = TRUE;
1498         }
1499       return target;
1500     }
1501
1502   if (abfd)
1503     abfd->target_defaulted = FALSE;
1504
1505   target = find_target (targname);
1506   if (target == NULL)
1507     return NULL;
1508
1509   if (abfd)
1510     abfd->xvec = target;
1511   return target;
1512 }
1513
1514 /* Helper function for bfd_get_target_info to determine the target's
1515    architecture.  This method handles bfd internal target names as
1516    tuples and triplets.  */
1517 static bfd_boolean
1518 _bfd_find_arch_match (const char *tname, const char **arch,
1519                       const char **def_target_arch)
1520 {
1521   if (!arch)
1522     return FALSE;
1523
1524   while (*arch != NULL)
1525     {
1526       const char *in_a = strstr (*arch, tname);
1527       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1528
1529       if (in_a && (in_a == *arch || in_a[-1] == ':')
1530           && end_ch == 0)
1531         {
1532           *def_target_arch = *arch;
1533           return TRUE;
1534         }
1535       arch++;
1536     }
1537   return FALSE;
1538 }
1539
1540 /*
1541 FUNCTION
1542         bfd_get_target_info
1543 SYNOPSIS
1544         const bfd_target *bfd_get_target_info (const char *target_name,
1545                                                bfd *abfd,
1546                                                bfd_boolean *is_bigendian,
1547                                                int *underscoring,
1548                                                const char **def_target_arch);
1549 DESCRIPTION
1550         Return a pointer to the transfer vector for the object target
1551         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1552         choose the one in the environment variable <<GNUTARGET>>; if
1553         that is null or not defined, then choose the first entry in the
1554         target list.  Passing in the string "default" or setting the
1555         environment variable to "default" will cause the first entry in
1556         the target list to be returned, and "target_defaulted" will be
1557         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1558         <<bfd_check_format>> to loop over all the targets to find the
1559         one that matches the file being read.
1560         If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1561         endian mode. True for big-endian, FALSE for little-endian or for
1562         invalid target.
1563         If @var{underscoring} is not <<NULL>>, then set this value to target's
1564         underscoring mode. Zero for none-underscoring, -1 for invalid target,
1565         else the value of target vector's symbol underscoring.
1566         If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1567         string specified by the target_name.
1568 */
1569 const bfd_target *
1570 bfd_get_target_info (const char *target_name, bfd *abfd,
1571                      bfd_boolean *is_bigendian,
1572                      int *underscoring, const char **def_target_arch)
1573 {
1574   const bfd_target *target_vec;
1575
1576   if (is_bigendian)
1577     *is_bigendian = FALSE;
1578   if (underscoring)
1579     *underscoring = -1;
1580   if (def_target_arch)
1581     *def_target_arch = NULL;
1582   target_vec = bfd_find_target (target_name, abfd);
1583   if (! target_vec)
1584     return NULL;
1585   if (is_bigendian)
1586     *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
1587                                                                : FALSE);
1588   if (underscoring)
1589     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1590
1591   if (def_target_arch)
1592     {
1593       const char *tname = target_vec->name;
1594       const char **arches = bfd_arch_list ();
1595
1596       if (arches && tname)
1597         {
1598           char *hyp = strchr (tname, '-');
1599
1600           if (hyp != NULL)
1601             {
1602               tname = ++hyp;
1603
1604               /* Make sure we detect architecture names
1605                  for triplets like "pe-arm-wince-little".  */
1606               if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1607                 {
1608                   char new_tname[50];
1609
1610                   strcpy (new_tname, hyp);
1611                   while ((hyp = strrchr (new_tname, '-')) != NULL)
1612                     {
1613                       *hyp = 0;
1614                       if (_bfd_find_arch_match (new_tname, arches,
1615                                                 def_target_arch))
1616                         break;
1617                     }
1618                 }
1619             }
1620           else
1621             _bfd_find_arch_match (tname, arches, def_target_arch);
1622         }
1623
1624       if (arches)
1625         free (arches);
1626     }
1627   return target_vec;
1628 }
1629
1630 /*
1631 FUNCTION
1632         bfd_target_list
1633
1634 SYNOPSIS
1635         const char ** bfd_target_list (void);
1636
1637 DESCRIPTION
1638         Return a freshly malloced NULL-terminated
1639         vector of the names of all the valid BFD targets. Do not
1640         modify the names.
1641
1642 */
1643
1644 const char **
1645 bfd_target_list (void)
1646 {
1647   int vec_length = 0;
1648   bfd_size_type amt;
1649   const bfd_target * const *target;
1650   const  char **name_list, **name_ptr;
1651
1652   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1653     vec_length++;
1654
1655   amt = (vec_length + 1) * sizeof (char **);
1656   name_ptr = name_list = (const  char **) bfd_malloc (amt);
1657
1658   if (name_list == NULL)
1659     return NULL;
1660
1661   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1662     if (target == &bfd_target_vector[0]
1663         || *target != bfd_target_vector[0])
1664       *name_ptr++ = (*target)->name;
1665
1666   *name_ptr = NULL;
1667   return name_list;
1668 }
1669
1670 /*
1671 FUNCTION
1672         bfd_iterate_over_targets
1673
1674 SYNOPSIS
1675         const bfd_target *bfd_iterate_over_targets
1676           (int (*func) (const bfd_target *, void *),
1677            void *data);
1678
1679 DESCRIPTION
1680         Call @var{func} for each target in the list of BFD target
1681         vectors, passing @var{data} to @var{func}.  Stop iterating if
1682         @var{func} returns a non-zero result, and return that target
1683         vector.  Return NULL if @var{func} always returns zero.
1684 */
1685
1686 const bfd_target *
1687 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
1688                           void *data)
1689 {
1690   const bfd_target *const *target;
1691
1692   for (target = bfd_target_vector; *target != NULL; ++target)
1693     if (func (*target, data))
1694       return *target;
1695
1696   return NULL;
1697 }
1698
1699 /*
1700 FUNCTION
1701         bfd_flavour_name
1702
1703 SYNOPSIS
1704         const char *bfd_flavour_name (enum bfd_flavour flavour);
1705
1706 DESCRIPTION
1707         Return the string form of @var{flavour}.
1708 */
1709
1710 const char *
1711 bfd_flavour_name (enum bfd_flavour flavour)
1712 {
1713   switch (flavour)
1714     {
1715     case bfd_target_unknown_flavour: return "unknown file format";
1716     case bfd_target_aout_flavour: return "a.out";
1717     case bfd_target_coff_flavour: return "COFF";
1718     case bfd_target_ecoff_flavour: return "ECOFF";
1719     case bfd_target_xcoff_flavour: return "XCOFF";
1720     case bfd_target_elf_flavour: return "ELF";
1721     case bfd_target_tekhex_flavour: return "Tekhex";
1722     case bfd_target_srec_flavour: return "Srec";
1723     case bfd_target_verilog_flavour: return "Verilog";
1724     case bfd_target_ihex_flavour: return "Ihex";
1725     case bfd_target_som_flavour: return "SOM";
1726     case bfd_target_os9k_flavour: return "OS9K";
1727     case bfd_target_versados_flavour: return "Versados";
1728     case bfd_target_msdos_flavour: return "MSDOS";
1729     case bfd_target_ovax_flavour: return "Ovax";
1730     case bfd_target_evax_flavour: return "Evax";
1731     case bfd_target_mmo_flavour: return "mmo";
1732     case bfd_target_mach_o_flavour: return "MACH_O";
1733     case bfd_target_pef_flavour: return "PEF";
1734     case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
1735     case bfd_target_sym_flavour: return "SYM";
1736     /* There is no "default" case here so that -Wswitch (part of -Wall)
1737        catches missing entries.  */
1738     }
1739
1740   abort ();
1741 }