bfd/targets.c

   1 /* Generic target-file-type support for the BFD library.
   2    Copyright (C) 1990-2022 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 .{* Defined to TRUE if unused section symbol should be kept.  *}
 137 .#ifndef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
 138 .#define TARGET_KEEP_UNUSED_SECTION_SYMBOLS true
 139 .#endif
 140 .
 141         This is the structure which defines the type of BFD this is.  The
 142         <<xvec>> member of the struct <<bfd>> itself points here.  Each
 143         module that implements access to a different target under BFD,
 144         defines one of these.
 145
 146         FIXME, these names should be rationalised with the names of
 147         the entry points which call them. Too bad we can't have one
 148         macro to define them both!
 149
 150 .enum bfd_flavour
 151 .{
 152 .  {* N.B. Update bfd_flavour_name if you change this.  *}
 153 .  bfd_target_unknown_flavour,
 154 .  bfd_target_aout_flavour,
 155 .  bfd_target_coff_flavour,
 156 .  bfd_target_ecoff_flavour,
 157 .  bfd_target_xcoff_flavour,
 158 .  bfd_target_elf_flavour,
 159 .  bfd_target_tekhex_flavour,
 160 .  bfd_target_srec_flavour,
 161 .  bfd_target_verilog_flavour,
 162 .  bfd_target_ihex_flavour,
 163 .  bfd_target_som_flavour,
 164 .  bfd_target_os9k_flavour,
 165 .  bfd_target_versados_flavour,
 166 .  bfd_target_msdos_flavour,
 167 .  bfd_target_ovax_flavour,
 168 .  bfd_target_evax_flavour,
 169 .  bfd_target_mmo_flavour,
 170 .  bfd_target_mach_o_flavour,
 171 .  bfd_target_pef_flavour,
 172 .  bfd_target_pef_xlib_flavour,
 173 .  bfd_target_sym_flavour
 174 .};
 175 .
 176 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
 177 .
 178 .{* Forward declaration.  *}
 179 .typedef struct bfd_link_info _bfd_link_info;
 180 .
 181 .{* Forward declaration.  *}
 182 .typedef struct flag_info flag_info;
 183 .
 184 .typedef void (*bfd_cleanup) (bfd *);
 185 .
 186 .typedef struct bfd_target
 187 .{
 188 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
 189 .  const char *name;
 190 .
 191 . {* The "flavour" of a back end is a general indication about
 192 .    the contents of a file.  *}
 193 .  enum bfd_flavour flavour;
 194 .
 195 .  {* The order of bytes within the data area of a file.  *}
 196 .  enum bfd_endian byteorder;
 197 .
 198 . {* The order of bytes within the header parts of a file.  *}
 199 .  enum bfd_endian header_byteorder;
 200 .
 201 .  {* A mask of all the flags which an executable may have set -
 202 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
 203 .  flagword object_flags;
 204 .
 205 . {* A mask of all the flags which a section may have set - from
 206 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
 207 .  flagword section_flags;
 208 .
 209 . {* The character normally found at the front of a symbol.
 210 .    (if any), perhaps `_'.  *}
 211 .  char symbol_leading_char;
 212 .
 213 . {* The pad character for file names within an archive header.  *}
 214 .  char ar_pad_char;
 215 .
 216 .  {* The maximum number of characters in an archive header.  *}
 217 .  unsigned char ar_max_namelen;
 218 .
 219 .  {* How well this target matches, used to select between various
 220 .     possible targets when more than one target matches.  *}
 221 .  unsigned char match_priority;
 222 .
 223 . {* TRUE if unused section symbols should be kept.  *}
 224 .  bool keep_unused_section_symbols;
 225 .
 226 .  {* Entries for byte swapping for data. These are different from the
 227 .     other entry points, since they don't take a BFD as the first argument.
 228 .     Certain other handlers could do the same.  *}
 229 .  uint64_t       (*bfd_getx64) (const void *);
 230 .  int64_t        (*bfd_getx_signed_64) (const void *);
 231 .  void           (*bfd_putx64) (uint64_t, void *);
 232 .  bfd_vma        (*bfd_getx32) (const void *);
 233 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
 234 .  void           (*bfd_putx32) (bfd_vma, void *);
 235 .  bfd_vma        (*bfd_getx16) (const void *);
 236 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
 237 .  void           (*bfd_putx16) (bfd_vma, void *);
 238 .
 239 .  {* Byte swapping for the headers.  *}
 240 .  uint64_t       (*bfd_h_getx64) (const void *);
 241 .  int64_t        (*bfd_h_getx_signed_64) (const void *);
 242 .  void           (*bfd_h_putx64) (uint64_t, void *);
 243 .  bfd_vma        (*bfd_h_getx32) (const void *);
 244 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
 245 .  void           (*bfd_h_putx32) (bfd_vma, void *);
 246 .  bfd_vma        (*bfd_h_getx16) (const void *);
 247 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
 248 .  void           (*bfd_h_putx16) (bfd_vma, void *);
 249 .
 250 .  {* Format dependent routines: these are vectors of entry points
 251 .     within the target vector structure, one for each format to check.  *}
 252 .
 253 .  {* Check the format of a file being read.  Return a <<bfd_cleanup>> on
 254 .     success or zero on failure.  *}
 255 .  bfd_cleanup (*_bfd_check_format[bfd_type_end]) (bfd *);
 256 .
 257 .  {* Set the format of a file being written.  *}
 258 .  bool (*_bfd_set_format[bfd_type_end]) (bfd *);
 259 .
 260 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
 261 .  bool (*_bfd_write_contents[bfd_type_end]) (bfd *);
 262 .
 263 The general target vector.  These vectors are initialized using the
 264 BFD_JUMP_TABLE macros.
 265 .
 266 .  {* Generic entry points.  *}
 267 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
 268 .  NAME##_close_and_cleanup, \
 269 .  NAME##_bfd_free_cached_info, \
 270 .  NAME##_new_section_hook, \
 271 .  NAME##_get_section_contents, \
 272 .  NAME##_get_section_contents_in_window
 273 .
 274 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
 275 .  bool (*_close_and_cleanup) (bfd *);
 276 .  {* Ask the BFD to free all cached information.  *}
 277 .  bool (*_bfd_free_cached_info) (bfd *);
 278 .  {* Called when a new section is created.  *}
 279 .  bool (*_new_section_hook) (bfd *, sec_ptr);
 280 .  {* Read the contents of a section.  *}
 281 .  bool (*_bfd_get_section_contents) (bfd *, sec_ptr, void *, file_ptr,
 282 .                                     bfd_size_type);
 283 .  bool (*_bfd_get_section_contents_in_window) (bfd *, sec_ptr, bfd_window *,
 284 .                                               file_ptr, bfd_size_type);
 285 .
 286 .  {* Entry points to copy private data.  *}
 287 .#define BFD_JUMP_TABLE_COPY(NAME) \
 288 .  NAME##_bfd_copy_private_bfd_data, \
 289 .  NAME##_bfd_merge_private_bfd_data, \
 290 .  _bfd_generic_init_private_section_data, \
 291 .  NAME##_bfd_copy_private_section_data, \
 292 .  NAME##_bfd_copy_private_symbol_data, \
 293 .  NAME##_bfd_copy_private_header_data, \
 294 .  NAME##_bfd_set_private_flags, \
 295 .  NAME##_bfd_print_private_bfd_data
 296 .
 297 .  {* Called to copy BFD general private data from one object file
 298 .     to another.  *}
 299 .  bool (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
 300 .  {* Called to merge BFD general private data from one object file
 301 .     to a common output file when linking.  *}
 302 .  bool (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *);
 303 .  {* Called to initialize BFD private section data from one object file
 304 .     to another.  *}
 305 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
 306 .       BFD_SEND (obfd, _bfd_init_private_section_data, \
 307 .                 (ibfd, isec, obfd, osec, link_info))
 308 .  bool (*_bfd_init_private_section_data) (bfd *, sec_ptr, bfd *, sec_ptr,
 309 .                                          struct bfd_link_info *);
 310 .  {* Called to copy BFD private section data from one object file
 311 .     to another.  *}
 312 .  bool (*_bfd_copy_private_section_data) (bfd *, sec_ptr, bfd *, sec_ptr);
 313 .  {* Called to copy BFD private symbol data from one symbol
 314 .     to another.  *}
 315 .  bool (*_bfd_copy_private_symbol_data) (bfd *, asymbol *,
 316 .                                         bfd *, asymbol *);
 317 .  {* Called to copy BFD private header data from one object file
 318 .     to another.  *}
 319 .  bool (*_bfd_copy_private_header_data) (bfd *, bfd *);
 320 .  {* Called to set private backend flags.  *}
 321 .  bool (*_bfd_set_private_flags) (bfd *, flagword);
 322 .
 323 .  {* Called to print private BFD data.  *}
 324 .  bool (*_bfd_print_private_bfd_data) (bfd *, void *);
 325 .
 326 .  {* Core file entry points.  *}
 327 .#define BFD_JUMP_TABLE_CORE(NAME) \
 328 .  NAME##_core_file_failing_command, \
 329 .  NAME##_core_file_failing_signal, \
 330 .  NAME##_core_file_matches_executable_p, \
 331 .  NAME##_core_file_pid
 332 .
 333 .  char *(*_core_file_failing_command) (bfd *);
 334 .  int   (*_core_file_failing_signal) (bfd *);
 335 .  bool  (*_core_file_matches_executable_p) (bfd *, bfd *);
 336 .  int   (*_core_file_pid) (bfd *);
 337 .
 338 .  {* Archive entry points.  *}
 339 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
 340 .  NAME##_slurp_armap, \
 341 .  NAME##_slurp_extended_name_table, \
 342 .  NAME##_construct_extended_name_table, \
 343 .  NAME##_truncate_arname, \
 344 .  NAME##_write_armap, \
 345 .  NAME##_read_ar_hdr, \
 346 .  NAME##_write_ar_hdr, \
 347 .  NAME##_openr_next_archived_file, \
 348 .  NAME##_get_elt_at_index, \
 349 .  NAME##_generic_stat_arch_elt, \
 350 .  NAME##_update_armap_timestamp
 351 .
 352 .  bool (*_bfd_slurp_armap) (bfd *);
 353 .  bool (*_bfd_slurp_extended_name_table) (bfd *);
 354 .  bool (*_bfd_construct_extended_name_table) (bfd *, char **,
 355 .                                              bfd_size_type *,
 356 .                                              const char **);
 357 .  void (*_bfd_truncate_arname) (bfd *, const char *, char *);
 358 .  bool (*write_armap) (bfd *, unsigned, struct orl *, unsigned, int);
 359 .  void *(*_bfd_read_ar_hdr_fn) (bfd *);
 360 .  bool (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
 361 .  bfd *(*openr_next_archived_file) (bfd *, bfd *);
 362 .#define bfd_get_elt_at_index(b,i) \
 363 .       BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
 364 .  bfd *(*_bfd_get_elt_at_index) (bfd *, symindex);
 365 .  int  (*_bfd_stat_arch_elt) (bfd *, struct stat *);
 366 .  bool (*_bfd_update_armap_timestamp) (bfd *);
 367 .
 368 .  {* Entry points used for symbols.  *}
 369 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
 370 .  NAME##_get_symtab_upper_bound, \
 371 .  NAME##_canonicalize_symtab, \
 372 .  NAME##_make_empty_symbol, \
 373 .  NAME##_print_symbol, \
 374 .  NAME##_get_symbol_info, \
 375 .  NAME##_get_symbol_version_string, \
 376 .  NAME##_bfd_is_local_label_name, \
 377 .  NAME##_bfd_is_target_special_symbol, \
 378 .  NAME##_get_lineno, \
 379 .  NAME##_find_nearest_line, \
 380 .  NAME##_find_nearest_line_with_alt, \
 381 .  NAME##_find_line, \
 382 .  NAME##_find_inliner_info, \
 383 .  NAME##_bfd_make_debug_symbol, \
 384 .  NAME##_read_minisymbols, \
 385 .  NAME##_minisymbol_to_symbol
 386 .
 387 .  long (*_bfd_get_symtab_upper_bound) (bfd *);
 388 .  long (*_bfd_canonicalize_symtab) (bfd *, struct bfd_symbol **);
 389 .  struct bfd_symbol *
 390 .       (*_bfd_make_empty_symbol) (bfd *);
 391 .  void (*_bfd_print_symbol) (bfd *, void *, struct bfd_symbol *,
 392 .                             bfd_print_symbol_type);
 393 .#define bfd_print_symbol(b,p,s,e) \
 394 .       BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
 395 .  void  (*_bfd_get_symbol_info) (bfd *, struct bfd_symbol *, symbol_info *);
 396 .#define bfd_get_symbol_info(b,p,e) \
 397 .       BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
 398 .  const char *
 399 .       (*_bfd_get_symbol_version_string) (bfd *, struct bfd_symbol *,
 400 .                                          bool, bool *);
 401 .#define bfd_get_symbol_version_string(b,s,p,h) \
 402 .       BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,p,h))
 403 .  bool (*_bfd_is_local_label_name) (bfd *, const char *);
 404 .  bool (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
 405 .  alent *
 406 .       (*_get_lineno) (bfd *, struct bfd_symbol *);
 407 .  bool (*_bfd_find_nearest_line) (bfd *, struct bfd_symbol **,
 408 .                                  struct bfd_section *, bfd_vma,
 409 .                                  const char **, const char **,
 410 .                                  unsigned int *, unsigned int *);
 411 .  bool (*_bfd_find_nearest_line_with_alt) (bfd *, const char *,
 412 .                                           struct bfd_symbol **,
 413 .                                           struct bfd_section *, bfd_vma,
 414 .                                           const char **, const char **,
 415 .                                           unsigned int *, unsigned int *);
 416 .  bool (*_bfd_find_line) (bfd *, struct bfd_symbol **,
 417 .                          struct bfd_symbol *, const char **,
 418 .                          unsigned int *);
 419 .  bool (*_bfd_find_inliner_info)
 420 .    (bfd *, const char **, const char **, unsigned int *);
 421 . {* Back-door to allow format-aware applications to create debug symbols
 422 .    while using BFD for everything else.  Currently used by the assembler
 423 .    when creating COFF files.  *}
 424 .  asymbol *
 425 .       (*_bfd_make_debug_symbol) (bfd *, void *, unsigned long size);
 426 .#define bfd_read_minisymbols(b, d, m, s) \
 427 .       BFD_SEND (b, _read_minisymbols, (b, d, m, s))
 428 .  long (*_read_minisymbols) (bfd *, bool, void **, unsigned int *);
 429 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
 430 .       BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
 431 .  asymbol *
 432 .       (*_minisymbol_to_symbol) (bfd *, bool, const void *, asymbol *);
 433 .
 434 .  {* Routines for relocs.  *}
 435 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
 436 .  NAME##_get_reloc_upper_bound, \
 437 .  NAME##_canonicalize_reloc, \
 438 .  NAME##_set_reloc, \
 439 .  NAME##_bfd_reloc_type_lookup, \
 440 .  NAME##_bfd_reloc_name_lookup
 441 .
 442 .  long (*_get_reloc_upper_bound) (bfd *, sec_ptr);
 443 .  long (*_bfd_canonicalize_reloc) (bfd *, sec_ptr, arelent **,
 444 .                                   struct bfd_symbol **);
 445 .  void (*_bfd_set_reloc) (bfd *, sec_ptr, arelent **, unsigned int);
 446 .  {* See documentation on reloc types.  *}
 447 .  reloc_howto_type *
 448 .       (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
 449 .  reloc_howto_type *
 450 .       (*reloc_name_lookup) (bfd *, const char *);
 451 .
 452 .  {* Routines used when writing an object file.  *}
 453 .#define BFD_JUMP_TABLE_WRITE(NAME) \
 454 .  NAME##_set_arch_mach, \
 455 .  NAME##_set_section_contents
 456 .
 457 .  bool (*_bfd_set_arch_mach) (bfd *, enum bfd_architecture,
 458 .                                     unsigned long);
 459 .  bool (*_bfd_set_section_contents) (bfd *, sec_ptr, const void *,
 460 .                                     file_ptr, bfd_size_type);
 461 .
 462 .  {* Routines used by the linker.  *}
 463 .#define BFD_JUMP_TABLE_LINK(NAME) \
 464 .  NAME##_sizeof_headers, \
 465 .  NAME##_bfd_get_relocated_section_contents, \
 466 .  NAME##_bfd_relax_section, \
 467 .  NAME##_bfd_link_hash_table_create, \
 468 .  NAME##_bfd_link_add_symbols, \
 469 .  NAME##_bfd_link_just_syms, \
 470 .  NAME##_bfd_copy_link_hash_symbol_type, \
 471 .  NAME##_bfd_final_link, \
 472 .  NAME##_bfd_link_split_section, \
 473 .  NAME##_bfd_link_check_relocs, \
 474 .  NAME##_bfd_gc_sections, \
 475 .  NAME##_bfd_lookup_section_flags, \
 476 .  NAME##_bfd_merge_sections, \
 477 .  NAME##_bfd_is_group_section, \
 478 .  NAME##_bfd_group_name, \
 479 .  NAME##_bfd_discard_group, \
 480 .  NAME##_section_already_linked, \
 481 .  NAME##_bfd_define_common_symbol, \
 482 .  NAME##_bfd_link_hide_symbol, \
 483 .  NAME##_bfd_define_start_stop
 484 .
 485 .  int  (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
 486 .  bfd_byte *
 487 .       (*_bfd_get_relocated_section_contents) (bfd *,
 488 .                                               struct bfd_link_info *,
 489 .                                               struct bfd_link_order *,
 490 .                                               bfd_byte *, bool,
 491 .                                               struct bfd_symbol **);
 492 .
 493 .  bool (*_bfd_relax_section) (bfd *, struct bfd_section *,
 494 .                              struct bfd_link_info *, bool *);
 495 .
 496 .  {* Create a hash table for the linker.  Different backends store
 497 .     different information in this table.  *}
 498 .  struct bfd_link_hash_table *
 499 .       (*_bfd_link_hash_table_create) (bfd *);
 500 .
 501 .  {* Add symbols from this object file into the hash table.  *}
 502 .  bool (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
 503 .
 504 .  {* Indicate that we are only retrieving symbol values from this section.  *}
 505 .  void (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
 506 .
 507 .  {* Copy the symbol type and other attributes for a linker script
 508 .     assignment of one symbol to another.  *}
 509 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
 510 .       BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
 511 .  void (*_bfd_copy_link_hash_symbol_type) (bfd *,
 512 .                                           struct bfd_link_hash_entry *,
 513 .                                           struct bfd_link_hash_entry *);
 514 .
 515 .  {* Do a link based on the link_order structures attached to each
 516 .     section of the BFD.  *}
 517 .  bool (*_bfd_final_link) (bfd *, struct bfd_link_info *);
 518 .
 519 .  {* Should this section be split up into smaller pieces during linking.  *}
 520 .  bool (*_bfd_link_split_section) (bfd *, struct bfd_section *);
 521 .
 522 .  {* Check the relocations in the bfd for validity.  *}
 523 .  bool (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
 524 .
 525 .  {* Remove sections that are not referenced from the output.  *}
 526 .  bool (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
 527 .
 528 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
 529 .  bool (*_bfd_lookup_section_flags) (struct bfd_link_info *,
 530 .                                     struct flag_info *, asection *);
 531 .
 532 .  {* Attempt to merge SEC_MERGE sections.  *}
 533 .  bool (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
 534 .
 535 .  {* Is this section a member of a group?  *}
 536 .  bool (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
 537 .
 538 .  {* The group name, if section is a member of a group.  *}
 539 .  const char *(*_bfd_group_name) (bfd *, const struct bfd_section *);
 540 .
 541 .  {* Discard members of a group.  *}
 542 .  bool (*_bfd_discard_group) (bfd *, struct bfd_section *);
 543 .
 544 .  {* Check if SEC has been already linked during a reloceatable or
 545 .     final link.  *}
 546 .  bool (*_section_already_linked) (bfd *, asection *,
 547 .                                   struct bfd_link_info *);
 548 .
 549 .  {* Define a common symbol.  *}
 550 .  bool (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
 551 .                                     struct bfd_link_hash_entry *);
 552 .
 553 .  {* Hide a symbol.  *}
 554 .  void (*_bfd_link_hide_symbol) (bfd *, struct bfd_link_info *,
 555 .                                 struct bfd_link_hash_entry *);
 556 .
 557 .  {* Define a __start, __stop, .startof. or .sizeof. symbol.  *}
 558 .  struct bfd_link_hash_entry *
 559 .       (*_bfd_define_start_stop) (struct bfd_link_info *, const char *,
 560 .                                  asection *);
 561 .
 562 .  {* Routines to handle dynamic symbols and relocs.  *}
 563 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
 564 .  NAME##_get_dynamic_symtab_upper_bound, \
 565 .  NAME##_canonicalize_dynamic_symtab, \
 566 .  NAME##_get_synthetic_symtab, \
 567 .  NAME##_get_dynamic_reloc_upper_bound, \
 568 .  NAME##_canonicalize_dynamic_reloc
 569 .
 570 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
 571 .  long (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
 572 .  {* Read in the dynamic symbols.  *}
 573 .  long (*_bfd_canonicalize_dynamic_symtab) (bfd *, struct bfd_symbol **);
 574 .  {* Create synthetized symbols.  *}
 575 .  long (*_bfd_get_synthetic_symtab) (bfd *, long, struct bfd_symbol **,
 576 .                                     long, struct bfd_symbol **,
 577 .                                     struct bfd_symbol **);
 578 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
 579 .  long (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
 580 .  {* Read in the dynamic relocs.  *}
 581 .  long (*_bfd_canonicalize_dynamic_reloc) (bfd *, arelent **,
 582 .                                           struct bfd_symbol **);
 583 .
 584
 585 A pointer to an alternative bfd_target in case the current one is not
 586 satisfactory.  This can happen when the target cpu supports both big
 587 and little endian code, and target chosen by the linker has the wrong
 588 endianness.  The function open_output() in ld/ldlang.c uses this field
 589 to find an alternative output format that is suitable.
 590
 591 .  {* Opposite endian version of this target.  *}
 592 .  const struct bfd_target *alternative_target;
 593 .
 594
 595 .  {* Data for use by back-end routines, which isn't
 596 .     generic enough to belong in this structure.  *}
 597 .  const void *backend_data;
 598 .
 599 .} bfd_target;
 600 .
 601 .static inline const char *
 602 .bfd_get_target (const bfd *abfd)
 603 .{
 604 .  return abfd->xvec->name;
 605 .}
 606 .
 607 .static inline enum bfd_flavour
 608 .bfd_get_flavour (const bfd *abfd)
 609 .{
 610 .  return abfd->xvec->flavour;
 611 .}
 612 .
 613 .static inline flagword
 614 .bfd_applicable_file_flags (const bfd *abfd)
 615 .{
 616 .  return abfd->xvec->object_flags;
 617 .}
 618 .
 619 .static inline bool
 620 .bfd_family_coff (const bfd *abfd)
 621 .{
 622 .  return (bfd_get_flavour (abfd) == bfd_target_coff_flavour
 623 .          || bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
 624 .}
 625 .
 626 .static inline bool
 627 .bfd_big_endian (const bfd *abfd)
 628 .{
 629 .  return abfd->xvec->byteorder == BFD_ENDIAN_BIG;
 630 .}
 631 .static inline bool
 632 .bfd_little_endian (const bfd *abfd)
 633 .{
 634 .  return abfd->xvec->byteorder == BFD_ENDIAN_LITTLE;
 635 .}
 636 .
 637 .static inline bool
 638 .bfd_header_big_endian (const bfd *abfd)
 639 .{
 640 .  return abfd->xvec->header_byteorder == BFD_ENDIAN_BIG;
 641 .}
 642 .
 643 .static inline bool
 644 .bfd_header_little_endian (const bfd *abfd)
 645 .{
 646 .  return abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE;
 647 .}
 648 .
 649 .static inline flagword
 650 .bfd_applicable_section_flags (const bfd *abfd)
 651 .{
 652 .  return abfd->xvec->section_flags;
 653 .}
 654 .
 655 .static inline char
 656 .bfd_get_symbol_leading_char (const bfd *abfd)
 657 .{
 658 .  return abfd->xvec->symbol_leading_char;
 659 .}
 660 .
 661 .static inline enum bfd_flavour
 662 .bfd_asymbol_flavour (const asymbol *sy)
 663 .{
 664 .  if ((sy->flags & BSF_SYNTHETIC) != 0)
 665 .    return bfd_target_unknown_flavour;
 666 .  return sy->the_bfd->xvec->flavour;
 667 .}
 668 .
 669 .static inline bool
 670 .bfd_keep_unused_section_symbols (const bfd *abfd)
 671 .{
 672 .  return abfd->xvec->keep_unused_section_symbols;
 673 .}
 674 .
 675 */
 676
 677 /* All known xvecs (even those that don't compile on all systems).
 678    Alphabetized for easy reference.
 679    They are listed a second time below, since
 680    we can't intermix extern's and initializers.  */
 681 extern const bfd_target aarch64_elf32_be_vec;
 682 extern const bfd_target aarch64_elf32_le_vec;
 683 extern const bfd_target aarch64_elf64_be_vec;
 684 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
 685 extern const bfd_target aarch64_elf64_le_vec;
 686 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
 687 extern const bfd_target aarch64_mach_o_vec;
 688 extern const bfd_target aarch64_pei_vec;
 689 extern const bfd_target alpha_ecoff_le_vec;
 690 extern const bfd_target alpha_elf64_vec;
 691 extern const bfd_target alpha_elf64_fbsd_vec;
 692 extern const bfd_target alpha_vms_vec;
 693 extern const bfd_target alpha_vms_lib_txt_vec;
 694 extern const bfd_target am33_elf32_linux_vec;
 695 extern const bfd_target amdgcn_elf64_le_vec;
 696 extern const bfd_target aout_vec;
 697 extern const bfd_target arc_elf32_be_vec;
 698 extern const bfd_target arc_elf32_le_vec;
 699 extern const bfd_target arm_elf32_be_vec;
 700 extern const bfd_target arm_elf32_le_vec;
 701 extern const bfd_target arm_elf32_fdpic_be_vec;
 702 extern const bfd_target arm_elf32_fdpic_le_vec;
 703 extern const bfd_target arm_elf32_nacl_be_vec;
 704 extern const bfd_target arm_elf32_nacl_le_vec;
 705 extern const bfd_target arm_elf32_vxworks_be_vec;
 706 extern const bfd_target arm_elf32_vxworks_le_vec;
 707 extern const bfd_target arm_mach_o_vec;
 708 extern const bfd_target arm_pe_be_vec;
 709 extern const bfd_target arm_pe_le_vec;
 710 extern const bfd_target arm_pe_wince_be_vec;
 711 extern const bfd_target arm_pe_wince_le_vec;
 712 extern const bfd_target arm_pei_be_vec;
 713 extern const bfd_target arm_pei_le_vec;
 714 extern const bfd_target arm_pei_wince_be_vec;
 715 extern const bfd_target arm_pei_wince_le_vec;
 716 extern const bfd_target avr_elf32_vec;
 717 extern const bfd_target bfin_elf32_vec;
 718 extern const bfd_target bfin_elf32_fdpic_vec;
 719 extern const bfd_target cr16_elf32_vec;
 720 extern const bfd_target cris_aout_vec;
 721 extern const bfd_target cris_elf32_vec;
 722 extern const bfd_target cris_elf32_us_vec;
 723 extern const bfd_target crx_elf32_vec;
 724 extern const bfd_target csky_elf32_be_vec;
 725 extern const bfd_target csky_elf32_le_vec;
 726 extern const bfd_target d10v_elf32_vec;
 727 extern const bfd_target d30v_elf32_vec;
 728 extern const bfd_target dlx_elf32_be_vec;
 729 extern const bfd_target elf32_be_vec;
 730 extern const bfd_target elf32_le_vec;
 731 extern const bfd_target elf64_be_vec;
 732 extern const bfd_target elf64_le_vec;
 733 extern const bfd_target bpf_elf64_le_vec;
 734 extern const bfd_target bpf_elf64_be_vec;
 735 extern const bfd_target epiphany_elf32_vec;
 736 extern const bfd_target fr30_elf32_vec;
 737 extern const bfd_target frv_elf32_vec;
 738 extern const bfd_target frv_elf32_fdpic_vec;
 739 extern const bfd_target h8300_elf32_vec;
 740 extern const bfd_target h8300_elf32_linux_vec;
 741 extern const bfd_target hppa_elf32_vec;
 742 extern const bfd_target hppa_elf32_linux_vec;
 743 extern const bfd_target hppa_elf32_nbsd_vec;
 744 extern const bfd_target hppa_elf64_vec;
 745 extern const bfd_target hppa_elf64_linux_vec;
 746 extern const bfd_target hppa_som_vec;
 747 extern const bfd_target i386_aout_vec;
 748 extern const bfd_target i386_aout_bsd_vec;
 749 extern const bfd_target i386_aout_lynx_vec;
 750 extern const bfd_target i386_coff_vec;
 751 extern const bfd_target i386_coff_go32_vec;
 752 extern const bfd_target i386_coff_go32stubbed_vec;
 753 extern const bfd_target i386_coff_lynx_vec;
 754 extern const bfd_target i386_elf32_vec;
 755 extern const bfd_target i386_elf32_fbsd_vec;
 756 extern const bfd_target i386_elf32_sol2_vec;
 757 extern const bfd_target i386_elf32_vxworks_vec;
 758 extern const bfd_target i386_mach_o_vec;
 759 extern const bfd_target i386_msdos_vec;
 760 extern const bfd_target i386_pe_vec;
 761 extern const bfd_target i386_pe_big_vec;
 762 extern const bfd_target i386_pei_vec;
 763 extern const bfd_target iamcu_elf32_vec;
 764 extern const bfd_target ia64_elf32_be_vec;
 765 extern const bfd_target ia64_elf32_hpux_be_vec;
 766 extern const bfd_target ia64_elf64_be_vec;
 767 extern const bfd_target ia64_elf64_le_vec;
 768 extern const bfd_target ia64_elf64_hpux_be_vec;
 769 extern const bfd_target ia64_elf64_vms_vec;
 770 extern const bfd_target ia64_pei_vec;
 771 extern const bfd_target ip2k_elf32_vec;
 772 extern const bfd_target iq2000_elf32_vec;
 773 extern const bfd_target lm32_elf32_vec;
 774 extern const bfd_target lm32_elf32_fdpic_vec;
 775 extern const bfd_target loongarch_elf64_vec;
 776 extern const bfd_target loongarch_elf32_vec;
 777 extern const bfd_target loongarch64_pei_vec;
 778 extern const bfd_target m32c_elf32_vec;
 779 extern const bfd_target m32r_elf32_vec;
 780 extern const bfd_target m32r_elf32_le_vec;
 781 extern const bfd_target m32r_elf32_linux_vec;
 782 extern const bfd_target m32r_elf32_linux_le_vec;
 783 extern const bfd_target m68hc11_elf32_vec;
 784 extern const bfd_target m68hc12_elf32_vec;
 785 extern const bfd_target m68k_elf32_vec;
 786 extern const bfd_target s12z_elf32_vec;
 787 extern const bfd_target mach_o_be_vec;
 788 extern const bfd_target mach_o_le_vec;
 789 extern const bfd_target mach_o_fat_vec;
 790 extern const bfd_target mcore_elf32_be_vec;
 791 extern const bfd_target mcore_elf32_le_vec;
 792 extern const bfd_target mcore_pe_be_vec;
 793 extern const bfd_target mcore_pe_le_vec;
 794 extern const bfd_target mcore_pei_be_vec;
 795 extern const bfd_target mcore_pei_le_vec;
 796 extern const bfd_target mep_elf32_vec;
 797 extern const bfd_target mep_elf32_le_vec;
 798 extern const bfd_target metag_elf32_vec;
 799 extern const bfd_target microblaze_elf32_vec;
 800 extern const bfd_target microblaze_elf32_le_vec;
 801 extern const bfd_target mips_ecoff_be_vec;
 802 extern const bfd_target mips_ecoff_le_vec;
 803 extern const bfd_target mips_ecoff_bele_vec;
 804 extern const bfd_target mips_elf32_be_vec;
 805 extern const bfd_target mips_elf32_le_vec;
 806 extern const bfd_target mips_elf32_n_be_vec;
 807 extern const bfd_target mips_elf32_n_le_vec;
 808 extern const bfd_target mips_elf32_ntrad_be_vec;
 809 extern const bfd_target mips_elf32_ntrad_le_vec;
 810 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
 811 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
 812 extern const bfd_target mips_elf32_trad_be_vec;
 813 extern const bfd_target mips_elf32_trad_le_vec;
 814 extern const bfd_target mips_elf32_tradfbsd_be_vec;
 815 extern const bfd_target mips_elf32_tradfbsd_le_vec;
 816 extern const bfd_target mips_elf32_vxworks_be_vec;
 817 extern const bfd_target mips_elf32_vxworks_le_vec;
 818 extern const bfd_target mips_elf64_be_vec;
 819 extern const bfd_target mips_elf64_le_vec;
 820 extern const bfd_target mips_elf64_trad_be_vec;
 821 extern const bfd_target mips_elf64_trad_le_vec;
 822 extern const bfd_target mips_elf64_tradfbsd_be_vec;
 823 extern const bfd_target mips_elf64_tradfbsd_le_vec;
 824 extern const bfd_target mmix_elf64_vec;
 825 extern const bfd_target mmix_mmo_vec;
 826 extern const bfd_target mn10200_elf32_vec;
 827 extern const bfd_target mn10300_elf32_vec;
 828 extern const bfd_target moxie_elf32_be_vec;
 829 extern const bfd_target moxie_elf32_le_vec;
 830 extern const bfd_target msp430_elf32_vec;
 831 extern const bfd_target msp430_elf32_ti_vec;
 832 extern const bfd_target mt_elf32_vec;
 833 extern const bfd_target nds32_elf32_be_vec;
 834 extern const bfd_target nds32_elf32_le_vec;
 835 extern const bfd_target nds32_elf32_linux_be_vec;
 836 extern const bfd_target nds32_elf32_linux_le_vec;
 837 extern const bfd_target nfp_elf64_vec;
 838 extern const bfd_target nios2_elf32_be_vec;
 839 extern const bfd_target nios2_elf32_le_vec;
 840 extern const bfd_target ns32k_aout_pc532mach_vec;
 841 extern const bfd_target ns32k_aout_pc532nbsd_vec;
 842 extern const bfd_target or1k_elf32_vec;
 843 extern const bfd_target pdb_vec;
 844 extern const bfd_target pdp11_aout_vec;
 845 extern const bfd_target pef_vec;
 846 extern const bfd_target pef_xlib_vec;
 847 extern const bfd_target pj_elf32_vec;
 848 extern const bfd_target pj_elf32_le_vec;
 849 extern const bfd_target plugin_vec;
 850 extern const bfd_target powerpc_boot_vec;
 851 extern const bfd_target powerpc_elf32_vec;
 852 extern const bfd_target powerpc_elf32_le_vec;
 853 extern const bfd_target powerpc_elf32_fbsd_vec;
 854 extern const bfd_target powerpc_elf32_vxworks_vec;
 855 extern const bfd_target powerpc_elf64_vec;
 856 extern const bfd_target powerpc_elf64_le_vec;
 857 extern const bfd_target powerpc_elf64_fbsd_vec;
 858 extern const bfd_target powerpc_elf64_fbsd_le_vec;
 859 extern const bfd_target powerpc_xcoff_vec;
 860 extern const bfd_target pru_elf32_vec;
 861 extern const bfd_target riscv_elf32_vec;
 862 extern const bfd_target riscv_elf64_vec;
 863 extern const bfd_target riscv_elf32_be_vec;
 864 extern const bfd_target riscv_elf64_be_vec;
 865 extern const bfd_target rl78_elf32_vec;
 866 extern const bfd_target rs6000_xcoff64_vec;
 867 extern const bfd_target rs6000_xcoff64_aix_vec;
 868 extern const bfd_target rs6000_xcoff_vec;
 869 extern const bfd_target rx_elf32_be_vec;
 870 extern const bfd_target rx_elf32_be_ns_vec;
 871 extern const bfd_target rx_elf32_le_vec;
 872 extern const bfd_target rx_elf32_linux_le_vec;
 873 extern const bfd_target s390_elf32_vec;
 874 extern const bfd_target s390_elf64_vec;
 875 extern const bfd_target score_elf32_be_vec;
 876 extern const bfd_target score_elf32_le_vec;
 877 extern const bfd_target sh_coff_vec;
 878 extern const bfd_target sh_coff_le_vec;
 879 extern const bfd_target sh_coff_small_vec;
 880 extern const bfd_target sh_coff_small_le_vec;
 881 extern const bfd_target sh_elf32_vec;
 882 extern const bfd_target sh_elf32_le_vec;
 883 extern const bfd_target sh_elf32_fdpic_be_vec;
 884 extern const bfd_target sh_elf32_fdpic_le_vec;
 885 extern const bfd_target sh_elf32_linux_vec;
 886 extern const bfd_target sh_elf32_linux_be_vec;
 887 extern const bfd_target sh_elf32_nbsd_vec;
 888 extern const bfd_target sh_elf32_nbsd_le_vec;
 889 extern const bfd_target sh_elf32_vxworks_vec;
 890 extern const bfd_target sh_elf32_vxworks_le_vec;
 891 extern const bfd_target sh_pe_le_vec;
 892 extern const bfd_target sh_pei_le_vec;
 893 extern const bfd_target sparc_elf32_vec;
 894 extern const bfd_target sparc_elf32_sol2_vec;
 895 extern const bfd_target sparc_elf32_vxworks_vec;
 896 extern const bfd_target sparc_elf64_vec;
 897 extern const bfd_target sparc_elf64_fbsd_vec;
 898 extern const bfd_target sparc_elf64_sol2_vec;
 899 extern const bfd_target spu_elf32_vec;
 900 extern const bfd_target sym_vec;
 901 extern const bfd_target tic30_coff_vec;
 902 extern const bfd_target tic4x_coff0_vec;
 903 extern const bfd_target tic4x_coff0_beh_vec;
 904 extern const bfd_target tic4x_coff1_vec;
 905 extern const bfd_target tic4x_coff1_beh_vec;
 906 extern const bfd_target tic4x_coff2_vec;
 907 extern const bfd_target tic4x_coff2_beh_vec;
 908 extern const bfd_target tic54x_coff0_vec;
 909 extern const bfd_target tic54x_coff0_beh_vec;
 910 extern const bfd_target tic54x_coff1_vec;
 911 extern const bfd_target tic54x_coff1_beh_vec;
 912 extern const bfd_target tic54x_coff2_vec;
 913 extern const bfd_target tic54x_coff2_beh_vec;
 914 extern const bfd_target tic6x_elf32_be_vec;
 915 extern const bfd_target tic6x_elf32_le_vec;
 916 extern const bfd_target tic6x_elf32_c6000_be_vec;
 917 extern const bfd_target tic6x_elf32_c6000_le_vec;
 918 extern const bfd_target tic6x_elf32_linux_be_vec;
 919 extern const bfd_target tic6x_elf32_linux_le_vec;
 920 extern const bfd_target tilegx_elf32_be_vec;
 921 extern const bfd_target tilegx_elf32_le_vec;
 922 extern const bfd_target tilegx_elf64_be_vec;
 923 extern const bfd_target tilegx_elf64_le_vec;
 924 extern const bfd_target tilepro_elf32_vec;
 925 extern const bfd_target v800_elf32_vec;
 926 extern const bfd_target v850_elf32_vec;
 927 extern const bfd_target ft32_elf32_vec;
 928 extern const bfd_target vax_aout_1knbsd_vec;
 929 extern const bfd_target vax_aout_nbsd_vec;
 930 extern const bfd_target vax_elf32_vec;
 931 extern const bfd_target visium_elf32_vec;
 932 extern const bfd_target wasm_vec;
 933 extern const bfd_target wasm32_elf32_vec;
 934 extern const bfd_target x86_64_coff_vec;
 935 extern const bfd_target x86_64_elf32_vec;
 936 extern const bfd_target x86_64_elf64_vec;
 937 extern const bfd_target x86_64_elf64_cloudabi_vec;
 938 extern const bfd_target x86_64_elf64_fbsd_vec;
 939 extern const bfd_target x86_64_elf64_sol2_vec;
 940 extern const bfd_target x86_64_mach_o_vec;
 941 extern const bfd_target x86_64_pe_vec;
 942 extern const bfd_target x86_64_pe_big_vec;
 943 extern const bfd_target x86_64_pei_vec;
 944 extern const bfd_target xgate_elf32_vec;
 945 extern const bfd_target xstormy16_elf32_vec;
 946 extern const bfd_target xtensa_elf32_be_vec;
 947 extern const bfd_target xtensa_elf32_le_vec;
 948 extern const bfd_target z80_coff_vec;
 949 extern const bfd_target z80_elf32_vec;
 950 extern const bfd_target z8k_coff_vec;
 951
 952 /* These are always included.  */
 953 extern const bfd_target srec_vec;
 954 extern const bfd_target symbolsrec_vec;
 955 extern const bfd_target verilog_vec;
 956 extern const bfd_target tekhex_vec;
 957 extern const bfd_target binary_vec;
 958 extern const bfd_target ihex_vec;
 959
 960 /* All of the xvecs for core files.  */
 961 extern const bfd_target core_aix386_vec;
 962 extern const bfd_target core_cisco_be_vec;
 963 extern const bfd_target core_cisco_le_vec;
 964 extern const bfd_target core_hppabsd_vec;
 965 extern const bfd_target core_hpux_vec;
 966 extern const bfd_target core_irix_vec;
 967 extern const bfd_target core_netbsd_vec;
 968 extern const bfd_target core_osf_vec;
 969 extern const bfd_target core_ptrace_vec;
 970 extern const bfd_target core_sco5_vec;
 971 extern const bfd_target core_trad_vec;
 972
 973 static const bfd_target * const _bfd_target_vector[] =
 974 {
 975 #ifdef SELECT_VECS
 976
 977         SELECT_VECS,
 978
 979 #else /* not SELECT_VECS */
 980
 981 #ifdef DEFAULT_VECTOR
 982         &DEFAULT_VECTOR,
 983 #endif
 984         /* This list is alphabetized to make it easy to compare
 985            with other vector lists -- the decls above and
 986            the case statement in configure.ac.
 987            Try to keep it in order when adding new targets, and
 988            use a name of the form <cpu>_<format>_<other>_<endian>_vec.
 989            Note that sorting is done as if _<endian>_vec wasn't present.
 990            Vectors that don't compile on all systems, or aren't finished,
 991            should have an entry here with #if 0 around it, to show that
 992            it wasn't omitted by mistake.  */
 993 #ifdef BFD64
 994         &aarch64_elf32_be_vec,
 995         &aarch64_elf32_le_vec,
 996         &aarch64_elf64_be_vec,
 997         &aarch64_elf64_be_cloudabi_vec,
 998         &aarch64_elf64_le_vec,
 999         &aarch64_elf64_le_cloudabi_vec,
1000         &aarch64_mach_o_vec,
1001         &aarch64_pei_vec,
1002 #endif
1003
1004 #ifdef BFD64
1005         &amdgcn_elf64_le_vec,
1006 #endif
1007
1008 #ifdef BFD64
1009         &alpha_ecoff_le_vec,
1010         &alpha_elf64_vec,
1011         &alpha_elf64_fbsd_vec,
1012         &alpha_vms_vec,
1013 #endif
1014         &alpha_vms_lib_txt_vec,
1015
1016         &am33_elf32_linux_vec,
1017
1018 #if 0
1019         /* Since a.out files lack decent magic numbers, no way to recognize
1020            which kind of a.out file it is.  */
1021         &aout_vec,
1022 #endif
1023
1024         &arc_elf32_be_vec,
1025         &arc_elf32_le_vec,
1026
1027         &arm_elf32_be_vec,
1028         &arm_elf32_le_vec,
1029         &arm_elf32_fdpic_be_vec,
1030         &arm_elf32_fdpic_le_vec,
1031         &arm_elf32_vxworks_be_vec,
1032         &arm_elf32_vxworks_le_vec,
1033         &arm_mach_o_vec,
1034         &arm_pe_be_vec,
1035         &arm_pe_le_vec,
1036         &arm_pe_wince_be_vec,
1037         &arm_pe_wince_le_vec,
1038         &arm_pei_be_vec,
1039         &arm_pei_le_vec,
1040         &arm_pei_wince_be_vec,
1041         &arm_pei_wince_le_vec,
1042
1043         &avr_elf32_vec,
1044
1045         &bfin_elf32_vec,
1046         &bfin_elf32_fdpic_vec,
1047
1048         &cr16_elf32_vec,
1049
1050         &cris_aout_vec,
1051         &cris_elf32_vec,
1052         &cris_elf32_us_vec,
1053
1054         &crx_elf32_vec,
1055
1056         &csky_elf32_be_vec,
1057         &csky_elf32_le_vec,
1058
1059         &d10v_elf32_vec,
1060         &d30v_elf32_vec,
1061
1062         &dlx_elf32_be_vec,
1063
1064         /* This, and other vectors, may not be used in any *.mt configuration.
1065            But that does not mean they are unnecessary.  If configured with
1066            --enable-targets=all, objdump or gdb should be able to examine
1067            the file even if we don't recognize the machine type.  */
1068         &elf32_be_vec,
1069         &elf32_le_vec,
1070 #ifdef BFD64
1071         &elf64_be_vec,
1072         &elf64_le_vec,
1073 #endif
1074
1075         &epiphany_elf32_vec,
1076
1077         &fr30_elf32_vec,
1078
1079         &frv_elf32_vec,
1080         &frv_elf32_fdpic_vec,
1081
1082         &h8300_elf32_vec,
1083         &h8300_elf32_linux_vec,
1084
1085         &hppa_elf32_vec,
1086         &hppa_elf32_linux_vec,
1087         &hppa_elf32_nbsd_vec,
1088 #ifdef BFD64
1089         &hppa_elf64_vec,
1090         &hppa_elf64_linux_vec,
1091 #endif
1092         &hppa_som_vec,
1093
1094         &i386_aout_vec,
1095         &i386_aout_bsd_vec,
1096         &i386_aout_lynx_vec,
1097         &i386_coff_vec,
1098         &i386_coff_go32_vec,
1099         &i386_coff_go32stubbed_vec,
1100         &i386_coff_lynx_vec,
1101         &i386_elf32_vec,
1102         &i386_elf32_fbsd_vec,
1103         &i386_elf32_sol2_vec,
1104         &i386_elf32_vxworks_vec,
1105         &i386_mach_o_vec,
1106         &i386_msdos_vec,
1107         &i386_pe_vec,
1108         &i386_pe_big_vec,
1109         &i386_pei_vec,
1110
1111         &iamcu_elf32_vec,
1112
1113 #ifdef BFD64
1114         &bpf_elf64_be_vec,
1115         &bpf_elf64_le_vec,
1116 #endif
1117
1118 #ifdef BFD64
1119 #if 0
1120         &ia64_elf32_be_vec,
1121 #endif
1122         &ia64_elf32_hpux_be_vec,
1123         &ia64_elf64_be_vec,
1124         &ia64_elf64_le_vec,
1125         &ia64_elf64_hpux_be_vec,
1126         &ia64_elf64_vms_vec,
1127         &ia64_pei_vec,
1128 #endif
1129
1130         &ip2k_elf32_vec,
1131         &iq2000_elf32_vec,
1132
1133         &lm32_elf32_vec,
1134
1135         &m32c_elf32_vec,
1136
1137         &m32r_elf32_vec,
1138         &m32r_elf32_le_vec,
1139         &m32r_elf32_linux_vec,
1140         &m32r_elf32_linux_le_vec,
1141
1142         &m68hc11_elf32_vec,
1143         &m68hc12_elf32_vec,
1144
1145         &m68k_elf32_vec,
1146
1147         &s12z_elf32_vec,
1148
1149         &mach_o_be_vec,
1150         &mach_o_le_vec,
1151         &mach_o_fat_vec,
1152
1153         &mcore_elf32_be_vec,
1154         &mcore_elf32_le_vec,
1155         &mcore_pe_be_vec,
1156         &mcore_pe_le_vec,
1157         &mcore_pei_be_vec,
1158         &mcore_pei_le_vec,
1159
1160         &mep_elf32_vec,
1161
1162         &metag_elf32_vec,
1163
1164         &microblaze_elf32_vec,
1165
1166         &mips_ecoff_be_vec,
1167         &mips_ecoff_le_vec,
1168         &mips_ecoff_bele_vec,
1169 #ifdef BFD64
1170         &mips_elf32_be_vec,
1171         &mips_elf32_le_vec,
1172         &mips_elf32_n_be_vec,
1173         &mips_elf32_n_le_vec,
1174         &mips_elf32_ntrad_be_vec,
1175         &mips_elf32_ntrad_le_vec,
1176         &mips_elf32_ntradfbsd_be_vec,
1177         &mips_elf32_ntradfbsd_le_vec,
1178         &mips_elf32_trad_be_vec,
1179         &mips_elf32_trad_le_vec,
1180         &mips_elf32_tradfbsd_be_vec,
1181         &mips_elf32_tradfbsd_le_vec,
1182         &mips_elf32_vxworks_be_vec,
1183         &mips_elf32_vxworks_le_vec,
1184         &mips_elf64_be_vec,
1185         &mips_elf64_le_vec,
1186         &mips_elf64_trad_be_vec,
1187         &mips_elf64_trad_le_vec,
1188         &mips_elf64_tradfbsd_be_vec,
1189         &mips_elf64_tradfbsd_le_vec,
1190 #endif
1191
1192 #ifdef BFD64
1193         &mmix_elf64_vec,
1194         &mmix_mmo_vec,
1195 #endif
1196
1197         &mn10200_elf32_vec,
1198         &mn10300_elf32_vec,
1199
1200         &moxie_elf32_be_vec,
1201         &moxie_elf32_le_vec,
1202
1203         &msp430_elf32_vec,
1204         &msp430_elf32_ti_vec,
1205
1206         &mt_elf32_vec,
1207
1208         &nds32_elf32_be_vec,
1209         &nds32_elf32_le_vec,
1210         &nds32_elf32_linux_be_vec,
1211         &nds32_elf32_linux_le_vec,
1212
1213 #ifdef BFD64
1214         &nfp_elf64_vec,
1215 #endif
1216
1217         &nios2_elf32_be_vec,
1218         &nios2_elf32_le_vec,
1219
1220         &ns32k_aout_pc532mach_vec,
1221         &ns32k_aout_pc532nbsd_vec,
1222
1223         &or1k_elf32_vec,
1224
1225         &pdb_vec,
1226
1227         &pdp11_aout_vec,
1228
1229         &pef_vec,
1230         &pef_xlib_vec,
1231
1232         &pj_elf32_vec,
1233         &pj_elf32_le_vec,
1234
1235         &powerpc_boot_vec,
1236         &powerpc_elf32_vec,
1237         &powerpc_elf32_le_vec,
1238         &powerpc_elf32_fbsd_vec,
1239         &powerpc_elf32_vxworks_vec,
1240 #ifdef BFD64
1241         &powerpc_elf64_vec,
1242         &powerpc_elf64_le_vec,
1243         &powerpc_elf64_fbsd_vec,
1244         &powerpc_elf64_fbsd_le_vec,
1245 #endif
1246 #if 0
1247         /* This has the same magic number as RS/6000.  */
1248         &powerpc_xcoff_vec,
1249 #endif
1250
1251         &pru_elf32_vec,
1252
1253 #ifdef BFD64
1254         &riscv_elf32_vec,
1255         &riscv_elf64_vec,
1256         &riscv_elf32_be_vec,
1257         &riscv_elf64_be_vec,
1258 #endif
1259         &rl78_elf32_vec,
1260
1261 #ifdef BFD64
1262         &rs6000_xcoff64_vec,
1263         &rs6000_xcoff64_aix_vec,
1264 #endif
1265         &rs6000_xcoff_vec,
1266
1267         &rx_elf32_be_vec,
1268         &rx_elf32_be_ns_vec,
1269         &rx_elf32_le_vec,
1270
1271         &s390_elf32_vec,
1272 #ifdef BFD64
1273         &s390_elf64_vec,
1274 #endif
1275
1276 #ifdef BFD64
1277         &score_elf32_be_vec,
1278         &score_elf32_le_vec,
1279 #endif
1280
1281         &sh_coff_vec,
1282         &sh_coff_le_vec,
1283         &sh_coff_small_vec,
1284         &sh_coff_small_le_vec,
1285         &sh_elf32_vec,
1286         &sh_elf32_le_vec,
1287         &sh_elf32_fdpic_be_vec,
1288         &sh_elf32_fdpic_le_vec,
1289         &sh_elf32_linux_vec,
1290         &sh_elf32_linux_be_vec,
1291         &sh_elf32_nbsd_vec,
1292         &sh_elf32_nbsd_le_vec,
1293         &sh_elf32_vxworks_vec,
1294         &sh_elf32_vxworks_le_vec,
1295         &sh_pe_le_vec,
1296         &sh_pei_le_vec,
1297
1298         &sparc_elf32_vec,
1299         &sparc_elf32_sol2_vec,
1300         &sparc_elf32_vxworks_vec,
1301 #ifdef BFD64
1302         &sparc_elf64_vec,
1303         &sparc_elf64_fbsd_vec,
1304         &sparc_elf64_sol2_vec,
1305 #endif
1306
1307         &spu_elf32_vec,
1308
1309         &sym_vec,
1310
1311         &tic30_coff_vec,
1312         &tic54x_coff0_beh_vec,
1313         &tic54x_coff0_vec,
1314         &tic54x_coff1_beh_vec,
1315         &tic54x_coff1_vec,
1316         &tic54x_coff2_beh_vec,
1317         &tic54x_coff2_vec,
1318         &tic6x_elf32_be_vec,
1319         &tic6x_elf32_le_vec,
1320
1321         &tilegx_elf32_be_vec,
1322         &tilegx_elf32_le_vec,
1323 #ifdef BFD64
1324         &tilegx_elf64_be_vec,
1325         &tilegx_elf64_le_vec,
1326 #endif
1327         &tilepro_elf32_vec,
1328
1329         &ft32_elf32_vec,
1330
1331         &v800_elf32_vec,
1332         &v850_elf32_vec,
1333
1334         &vax_aout_1knbsd_vec,
1335         &vax_aout_nbsd_vec,
1336         &vax_elf32_vec,
1337
1338         &visium_elf32_vec,
1339
1340         &wasm_vec,
1341         &wasm32_elf32_vec,
1342
1343 #ifdef BFD64
1344         &x86_64_coff_vec,
1345         &x86_64_elf32_vec,
1346         &x86_64_elf64_vec,
1347         &x86_64_elf64_cloudabi_vec,
1348         &x86_64_elf64_fbsd_vec,
1349         &x86_64_elf64_sol2_vec,
1350         &x86_64_mach_o_vec,
1351         &x86_64_pe_vec,
1352         &x86_64_pe_big_vec,
1353         &x86_64_pei_vec,
1354 #endif
1355
1356         &xgate_elf32_vec,
1357
1358         &xstormy16_elf32_vec,
1359
1360         &xtensa_elf32_be_vec,
1361         &xtensa_elf32_le_vec,
1362
1363         &z80_coff_vec,
1364         &z80_elf32_vec,
1365
1366         &z8k_coff_vec,
1367
1368 #ifdef BFD64
1369         &loongarch_elf32_vec,
1370         &loongarch_elf64_vec,
1371         &loongarch64_pei_vec,
1372 #endif
1373
1374 #endif /* not SELECT_VECS */
1375
1376 /* Always support S-records, for convenience.  */
1377         &srec_vec,
1378         &symbolsrec_vec,
1379 /* And verilog.  */
1380         &verilog_vec,
1381 /* And tekhex */
1382         &tekhex_vec,
1383 /* Likewise for binary output.  */
1384         &binary_vec,
1385 /* Likewise for ihex.  */
1386         &ihex_vec,
1387
1388 #if BFD_SUPPORTS_PLUGINS
1389         &plugin_vec,
1390 #endif
1391
1392 /* Add any required traditional-core-file-handler.  */
1393
1394 #ifdef AIX386_CORE
1395         &core_aix386_vec,
1396 #endif
1397 #if 0
1398         /* We don't include cisco_core_*_vec.  Although it has a magic number,
1399            the magic number isn't at the beginning of the file, and thus
1400            might spuriously match other kinds of files.  */
1401         &core_cisco_be_vec,
1402         &core_cisco_le_vec,
1403 #endif
1404 #ifdef HPPABSD_CORE
1405         &core_hppabsd_vec,
1406 #endif
1407 #ifdef HPUX_CORE
1408         &core_hpux_vec,
1409 #endif
1410 #ifdef IRIX_CORE
1411         &core_irix_vec,
1412 #endif
1413 #ifdef NETBSD_CORE
1414         &core_netbsd_vec,
1415 #endif
1416 #ifdef OSF_CORE
1417         &core_osf_vec,
1418 #endif
1419 #ifdef PTRACE_CORE
1420         &core_ptrace_vec,
1421 #endif
1422 #ifdef SCO5_CORE
1423         &core_sco5_vec,
1424 #endif
1425 #ifdef TRAD_CORE
1426         &core_trad_vec,
1427 #endif
1428
1429         NULL /* end of list marker */
1430 };
1431 const bfd_target *const *const bfd_target_vector = _bfd_target_vector;
1432
1433 /* bfd_default_vector[0] contains either the address of the default vector,
1434    if there is one, or zero if there isn't.  */
1435
1436 const bfd_target *bfd_default_vector[] = {
1437 #ifdef DEFAULT_VECTOR
1438         &DEFAULT_VECTOR,
1439 #endif
1440         NULL
1441 };
1442
1443 /* bfd_associated_vector[] contains the associated target vectors used
1444    to reduce the ambiguity in bfd_check_format_matches.  */
1445
1446 static const bfd_target *const _bfd_associated_vector[] = {
1447 #ifdef ASSOCIATED_VECS
1448         ASSOCIATED_VECS,
1449 #endif
1450         NULL
1451 };
1452 const bfd_target *const *const bfd_associated_vector = _bfd_associated_vector;
1453
1454 /* When there is an ambiguous match, bfd_check_format_matches puts the
1455    names of the matching targets in an array.  This variable is the maximum
1456    number of entries that the array could possibly need.  */
1457 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1458 \f
1459 /* This array maps configuration triplets onto BFD vectors.  */
1460
1461 struct targmatch
1462 {
1463   /* The configuration triplet.  */
1464   const char *triplet;
1465   /* The BFD vector.  If this is NULL, then the vector is found by
1466      searching forward for the next structure with a non NULL vector
1467      field.  */
1468   const bfd_target *vector;
1469 };
1470
1471 /* targmatch.h is built by Makefile out of config.bfd.  */
1472 static const struct targmatch bfd_target_match[] = {
1473 #include "targmatch.h"
1474   { NULL, NULL }
1475 };
1476
1477 /* Find a target vector, given a name or configuration triplet.  */
1478
1479 static const bfd_target *
1480 find_target (const char *name)
1481 {
1482   const bfd_target * const *target;
1483   const struct targmatch *match;
1484
1485   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1486     if (strcmp (name, (*target)->name) == 0)
1487       return *target;
1488
1489   /* If we couldn't match on the exact name, try matching on the
1490      configuration triplet.  FIXME: We should run the triplet through
1491      config.sub first, but that is hard.  */
1492   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1493     {
1494       if (fnmatch (match->triplet, name, 0) == 0)
1495         {
1496           while (match->vector == NULL)
1497             ++match;
1498           return match->vector;
1499         }
1500     }
1501
1502   bfd_set_error (bfd_error_invalid_target);
1503   return NULL;
1504 }
1505
1506 /*
1507 FUNCTION
1508         bfd_set_default_target
1509
1510 SYNOPSIS
1511         bool bfd_set_default_target (const char *name);
1512
1513 DESCRIPTION
1514         Set the default target vector to use when recognizing a BFD.
1515         This takes the name of the target, which may be a BFD target
1516         name or a configuration triplet.
1517 */
1518
1519 bool
1520 bfd_set_default_target (const char *name)
1521 {
1522   const bfd_target *target;
1523
1524   if (bfd_default_vector[0] != NULL
1525       && strcmp (name, bfd_default_vector[0]->name) == 0)
1526     return true;
1527
1528   target = find_target (name);
1529   if (target == NULL)
1530     return false;
1531
1532   bfd_default_vector[0] = target;
1533   return true;
1534 }
1535
1536 /*
1537 FUNCTION
1538         bfd_find_target
1539
1540 SYNOPSIS
1541         const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1542
1543 DESCRIPTION
1544         Return a pointer to the transfer vector for the object target
1545         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1546         choose the one in the environment variable <<GNUTARGET>>; if
1547         that is null or not defined, then choose the first entry in the
1548         target list.  Passing in the string "default" or setting the
1549         environment variable to "default" will cause the first entry in
1550         the target list to be returned, and "target_defaulted" will be
1551         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1552         <<bfd_check_format>> to loop over all the targets to find the
1553         one that matches the file being read.
1554 */
1555
1556 const bfd_target *
1557 bfd_find_target (const char *target_name, bfd *abfd)
1558 {
1559   const char *targname;
1560   const bfd_target *target;
1561
1562   if (target_name != NULL)
1563     targname = target_name;
1564   else
1565     targname = getenv ("GNUTARGET");
1566
1567   /* This is safe; the vector cannot be null.  */
1568   if (targname == NULL || strcmp (targname, "default") == 0)
1569     {
1570       if (bfd_default_vector[0] != NULL)
1571         target = bfd_default_vector[0];
1572       else
1573         target = bfd_target_vector[0];
1574       if (abfd)
1575         {
1576           abfd->xvec = target;
1577           abfd->target_defaulted = true;
1578         }
1579       return target;
1580     }
1581
1582   if (abfd)
1583     abfd->target_defaulted = false;
1584
1585   target = find_target (targname);
1586   if (target == NULL)
1587     return NULL;
1588
1589   if (abfd)
1590     abfd->xvec = target;
1591   return target;
1592 }
1593
1594 /* Helper function for bfd_get_target_info to determine the target's
1595    architecture.  This method handles bfd internal target names as
1596    tuples and triplets.  */
1597 static bool
1598 _bfd_find_arch_match (const char *tname, const char **arch,
1599                       const char **def_target_arch)
1600 {
1601   if (!arch)
1602     return false;
1603
1604   while (*arch != NULL)
1605     {
1606       const char *in_a = strstr (*arch, tname);
1607       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1608
1609       if (in_a && (in_a == *arch || in_a[-1] == ':')
1610           && end_ch == 0)
1611         {
1612           *def_target_arch = *arch;
1613           return true;
1614         }
1615       arch++;
1616     }
1617   return false;
1618 }
1619
1620 /*
1621 FUNCTION
1622         bfd_get_target_info
1623 SYNOPSIS
1624         const bfd_target *bfd_get_target_info (const char *target_name,
1625                                                bfd *abfd,
1626                                                bool *is_bigendian,
1627                                                int *underscoring,
1628                                                const char **def_target_arch);
1629 DESCRIPTION
1630         Return a pointer to the transfer vector for the object target
1631         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1632         choose the one in the environment variable <<GNUTARGET>>; if
1633         that is null or not defined, then choose the first entry in the
1634         target list.  Passing in the string "default" or setting the
1635         environment variable to "default" will cause the first entry in
1636         the target list to be returned, and "target_defaulted" will be
1637         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1638         <<bfd_check_format>> to loop over all the targets to find the
1639         one that matches the file being read.
1640         If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1641         endian mode. True for big-endian, FALSE for little-endian or for
1642         invalid target.
1643         If @var{underscoring} is not <<NULL>>, then set this value to target's
1644         underscoring mode. Zero for none-underscoring, -1 for invalid target,
1645         else the value of target vector's symbol underscoring.
1646         If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1647         string specified by the target_name.
1648 */
1649 const bfd_target *
1650 bfd_get_target_info (const char *target_name, bfd *abfd,
1651                      bool *is_bigendian,
1652                      int *underscoring, const char **def_target_arch)
1653 {
1654   const bfd_target *target_vec;
1655
1656   if (is_bigendian)
1657     *is_bigendian = false;
1658   if (underscoring)
1659     *underscoring = -1;
1660   if (def_target_arch)
1661     *def_target_arch = NULL;
1662   target_vec = bfd_find_target (target_name, abfd);
1663   if (! target_vec)
1664     return NULL;
1665   if (is_bigendian)
1666     *is_bigendian = target_vec->byteorder == BFD_ENDIAN_BIG;
1667   if (underscoring)
1668     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1669
1670   if (def_target_arch)
1671     {
1672       const char *tname = target_vec->name;
1673       const char **arches = bfd_arch_list ();
1674
1675       if (arches && tname)
1676         {
1677           char *hyp = strchr (tname, '-');
1678
1679           if (hyp != NULL)
1680             {
1681               tname = ++hyp;
1682
1683               /* Make sure we detect architecture names
1684                  for triplets like "pe-arm-wince-little".  */
1685               if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1686                 {
1687                   char new_tname[50];
1688
1689                   strcpy (new_tname, hyp);
1690                   while ((hyp = strrchr (new_tname, '-')) != NULL)
1691                     {
1692                       *hyp = 0;
1693                       if (_bfd_find_arch_match (new_tname, arches,
1694                                                 def_target_arch))
1695                         break;
1696                     }
1697                 }
1698             }
1699           else
1700             _bfd_find_arch_match (tname, arches, def_target_arch);
1701         }
1702
1703       free (arches);
1704     }
1705   return target_vec;
1706 }
1707
1708 /*
1709 FUNCTION
1710         bfd_target_list
1711
1712 SYNOPSIS
1713         const char ** bfd_target_list (void);
1714
1715 DESCRIPTION
1716         Return a freshly malloced NULL-terminated
1717         vector of the names of all the valid BFD targets. Do not
1718         modify the names.
1719
1720 */
1721
1722 const char **
1723 bfd_target_list (void)
1724 {
1725   int vec_length = 0;
1726   size_t amt;
1727   const bfd_target * const *target;
1728   const  char **name_list, **name_ptr;
1729
1730   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1731     vec_length++;
1732
1733   amt = (vec_length + 1) * sizeof (char **);
1734   name_ptr = name_list = (const  char **) bfd_malloc (amt);
1735
1736   if (name_list == NULL)
1737     return NULL;
1738
1739   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1740     if (target == &bfd_target_vector[0]
1741         || *target != bfd_target_vector[0])
1742       *name_ptr++ = (*target)->name;
1743
1744   *name_ptr = NULL;
1745   return name_list;
1746 }
1747
1748 /*
1749 FUNCTION
1750         bfd_iterate_over_targets
1751
1752 SYNOPSIS
1753         const bfd_target *bfd_iterate_over_targets
1754           (int (*func) (const bfd_target *, void *),
1755            void *data);
1756
1757 DESCRIPTION
1758         Call @var{func} for each target in the list of BFD target
1759         vectors, passing @var{data} to @var{func}.  Stop iterating if
1760         @var{func} returns a non-zero result, and return that target
1761         vector.  Return NULL if @var{func} always returns zero.
1762 */
1763
1764 const bfd_target *
1765 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
1766                           void *data)
1767 {
1768   const bfd_target *const *target;
1769
1770   for (target = bfd_target_vector; *target != NULL; ++target)
1771     if (func (*target, data))
1772       return *target;
1773
1774   return NULL;
1775 }
1776
1777 /*
1778 FUNCTION
1779         bfd_flavour_name
1780
1781 SYNOPSIS
1782         const char *bfd_flavour_name (enum bfd_flavour flavour);
1783
1784 DESCRIPTION
1785         Return the string form of @var{flavour}.
1786 */
1787
1788 const char *
1789 bfd_flavour_name (enum bfd_flavour flavour)
1790 {
1791   switch (flavour)
1792     {
1793     case bfd_target_unknown_flavour: return "unknown file format";
1794     case bfd_target_aout_flavour: return "a.out";
1795     case bfd_target_coff_flavour: return "COFF";
1796     case bfd_target_ecoff_flavour: return "ECOFF";
1797     case bfd_target_xcoff_flavour: return "XCOFF";
1798     case bfd_target_elf_flavour: return "ELF";
1799     case bfd_target_tekhex_flavour: return "Tekhex";
1800     case bfd_target_srec_flavour: return "Srec";
1801     case bfd_target_verilog_flavour: return "Verilog";
1802     case bfd_target_ihex_flavour: return "Ihex";
1803     case bfd_target_som_flavour: return "SOM";
1804     case bfd_target_os9k_flavour: return "OS9K";
1805     case bfd_target_versados_flavour: return "Versados";
1806     case bfd_target_msdos_flavour: return "MSDOS";
1807     case bfd_target_ovax_flavour: return "Ovax";
1808     case bfd_target_evax_flavour: return "Evax";
1809     case bfd_target_mmo_flavour: return "mmo";
1810     case bfd_target_mach_o_flavour: return "MACH_O";
1811     case bfd_target_pef_flavour: return "PEF";
1812     case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
1813     case bfd_target_sym_flavour: return "SYM";
1814     /* There is no "default" case here so that -Wswitch (part of -Wall)
1815        catches missing entries.  */
1816     }
1817
1818   abort ();
1819 }