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 "libiberty.h"
  24 #include "bfd.h"
  25 #include "libbfd.h"
  26 #include "fnmatch.h"
  27
  28 /*
  29    It's okay to see some:
  30 #if 0
  31    directives in this source file, as targets.c uses them to exclude
  32    certain BFD vectors.  This comment is specially formatted to catch
  33    users who grep for ^#if 0, so please keep it this way!
  34 */
  35
  36 /*
  37 SECTION
  38         Targets
  39
  40 DESCRIPTION
  41         Each port of BFD to a different machine requires the creation
  42         of a target back end. All the back end provides to the root
  43         part of BFD is a structure containing pointers to functions
  44         which perform certain low level operations on files. BFD
  45         translates the applications's requests through a pointer into
  46         calls to the back end routines.
  47
  48         When a file is opened with <<bfd_openr>>, its format and
  49         target are unknown. BFD uses various mechanisms to determine
  50         how to interpret the file. The operations performed are:
  51
  52         o Create a BFD by calling the internal routine
  53         <<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
  54         target string supplied to <<bfd_openr>> and the new BFD pointer.
  55
  56         o If a null target string was provided to <<bfd_find_target>>,
  57         look up the environment variable <<GNUTARGET>> and use
  58         that as the target string.
  59
  60         o If the target string is still <<NULL>>, or the target string is
  61         <<default>>, then use the first item in the target vector
  62         as the target type, and set <<target_defaulted>> in the BFD to
  63         cause <<bfd_check_format>> to loop through all the targets.
  64         @xref{bfd_target}.  @xref{Formats}.
  65
  66         o Otherwise, inspect the elements in the target vector
  67         one by one, until a match on target name is found. When found,
  68         use it.
  69
  70         o Otherwise return the error <<bfd_error_invalid_target>> to
  71         <<bfd_openr>>.
  72
  73         o <<bfd_openr>> attempts to open the file using
  74         <<bfd_open_file>>, and returns the BFD.
  75
  76         Once the BFD has been opened and the target selected, the file
  77         format may be determined. This is done by calling
  78         <<bfd_check_format>> on the BFD with a suggested format.
  79         If <<target_defaulted>> has been set, each possible target
  80         type is tried to see if it recognizes the specified format.
  81         <<bfd_check_format>> returns <<TRUE>> when the caller guesses right.
  82 @menu
  83 @* bfd_target::
  84 @end menu
  85 */
  86
  87 /*
  88
  89 INODE
  90         bfd_target,  , Targets, Targets
  91 DOCDD
  92 SUBSECTION
  93         bfd_target
  94
  95 DESCRIPTION
  96         This structure contains everything that BFD knows about a
  97         target. It includes things like its byte order, name, and which
  98         routines to call to do various operations.
  99
 100         Every BFD points to a target structure with its <<xvec>>
 101         member.
 102
 103         The macros below are used to dispatch to functions through the
 104         <<bfd_target>> vector. They are used in a number of macros further
 105         down in @file{bfd.h}, and are also used when calling various
 106         routines by hand inside the BFD implementation.  The @var{arglist}
 107         argument must be parenthesized; it contains all the arguments
 108         to the called function.
 109
 110         They make the documentation (more) unpleasant to read, so if
 111         someone wants to fix this and not break the above, please do.
 112
 113 .#define BFD_SEND(bfd, message, arglist) \
 114 .  ((*((bfd)->xvec->message)) arglist)
 115 .
 116 .#ifdef DEBUG_BFD_SEND
 117 .#undef BFD_SEND
 118 .#define BFD_SEND(bfd, message, arglist) \
 119 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
 120 .    ((*((bfd)->xvec->message)) arglist) : \
 121 .    (bfd_assert (__FILE__,__LINE__), NULL))
 122 .#endif
 123
 124         For operations which index on the BFD format:
 125
 126 .#define BFD_SEND_FMT(bfd, message, arglist) \
 127 .  (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
 128 .
 129 .#ifdef DEBUG_BFD_SEND
 130 .#undef BFD_SEND_FMT
 131 .#define BFD_SEND_FMT(bfd, message, arglist) \
 132 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
 133 .   (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
 134 .   (bfd_assert (__FILE__,__LINE__), NULL))
 135 .#endif
 136 .
 137 .{* Defined to TRUE if unused section symbol should be kept.  *}
 138 .#ifndef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
 139 .#define TARGET_KEEP_UNUSED_SECTION_SYMBOLS true
 140 .#endif
 141 .
 142         This is the structure which defines the type of BFD this is.  The
 143         <<xvec>> member of the struct <<bfd>> itself points here.  Each
 144         module that implements access to a different target under BFD,
 145         defines one of these.
 146
 147         FIXME, these names should be rationalised with the names of
 148         the entry points which call them. Too bad we can't have one
 149         macro to define them both!
 150
 151 .enum bfd_flavour
 152 .{
 153 .  {* N.B. Update bfd_flavour_name if you change this.  *}
 154 .  bfd_target_unknown_flavour,
 155 .  bfd_target_aout_flavour,
 156 .  bfd_target_coff_flavour,
 157 .  bfd_target_ecoff_flavour,
 158 .  bfd_target_xcoff_flavour,
 159 .  bfd_target_elf_flavour,
 160 .  bfd_target_tekhex_flavour,
 161 .  bfd_target_srec_flavour,
 162 .  bfd_target_verilog_flavour,
 163 .  bfd_target_ihex_flavour,
 164 .  bfd_target_som_flavour,
 165 .  bfd_target_os9k_flavour,
 166 .  bfd_target_versados_flavour,
 167 .  bfd_target_msdos_flavour,
 168 .  bfd_target_ovax_flavour,
 169 .  bfd_target_evax_flavour,
 170 .  bfd_target_mmo_flavour,
 171 .  bfd_target_mach_o_flavour,
 172 .  bfd_target_pef_flavour,
 173 .  bfd_target_pef_xlib_flavour,
 174 .  bfd_target_sym_flavour
 175 .};
 176 .
 177 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
 178 .
 179 .{* Forward declaration.  *}
 180 .typedef struct bfd_link_info _bfd_link_info;
 181 .
 182 .{* Forward declaration.  *}
 183 .typedef struct flag_info flag_info;
 184 .
 185 .typedef void (*bfd_cleanup) (bfd *);
 186 .
 187 .typedef struct bfd_target
 188 .{
 189 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
 190 .  const char *name;
 191 .
 192 . {* The "flavour" of a back end is a general indication about
 193 .    the contents of a file.  *}
 194 .  enum bfd_flavour flavour;
 195 .
 196 .  {* The order of bytes within the data area of a file.  *}
 197 .  enum bfd_endian byteorder;
 198 .
 199 . {* The order of bytes within the header parts of a file.  *}
 200 .  enum bfd_endian header_byteorder;
 201 .
 202 .  {* A mask of all the flags which an executable may have set -
 203 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
 204 .  flagword object_flags;
 205 .
 206 . {* A mask of all the flags which a section may have set - from
 207 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
 208 .  flagword section_flags;
 209 .
 210 . {* The character normally found at the front of a symbol.
 211 .    (if any), perhaps `_'.  *}
 212 .  char symbol_leading_char;
 213 .
 214 . {* The pad character for file names within an archive header.  *}
 215 .  char ar_pad_char;
 216 .
 217 .  {* The maximum number of characters in an archive header.  *}
 218 .  unsigned char ar_max_namelen;
 219 .
 220 .  {* How well this target matches, used to select between various
 221 .     possible targets when more than one target matches.  *}
 222 .  unsigned char match_priority;
 223 .
 224 . {* TRUE if unused section symbols should be kept.  *}
 225 .  bool keep_unused_section_symbols;
 226 .
 227 .  {* Entries for byte swapping for data. These are different from the
 228 .     other entry points, since they don't take a BFD as the first argument.
 229 .     Certain other handlers could do the same.  *}
 230 .  uint64_t       (*bfd_getx64) (const void *);
 231 .  int64_t        (*bfd_getx_signed_64) (const void *);
 232 .  void           (*bfd_putx64) (uint64_t, void *);
 233 .  bfd_vma        (*bfd_getx32) (const void *);
 234 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
 235 .  void           (*bfd_putx32) (bfd_vma, void *);
 236 .  bfd_vma        (*bfd_getx16) (const void *);
 237 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
 238 .  void           (*bfd_putx16) (bfd_vma, void *);
 239 .
 240 .  {* Byte swapping for the headers.  *}
 241 .  uint64_t       (*bfd_h_getx64) (const void *);
 242 .  int64_t        (*bfd_h_getx_signed_64) (const void *);
 243 .  void           (*bfd_h_putx64) (uint64_t, void *);
 244 .  bfd_vma        (*bfd_h_getx32) (const void *);
 245 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
 246 .  void           (*bfd_h_putx32) (bfd_vma, void *);
 247 .  bfd_vma        (*bfd_h_getx16) (const void *);
 248 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
 249 .  void           (*bfd_h_putx16) (bfd_vma, void *);
 250 .
 251 .  {* Format dependent routines: these are vectors of entry points
 252 .     within the target vector structure, one for each format to check.  *}
 253 .
 254 .  {* Check the format of a file being read.  Return a <<bfd_cleanup>> on
 255 .     success or zero on failure.  *}
 256 .  bfd_cleanup (*_bfd_check_format[bfd_type_end]) (bfd *);
 257 .
 258 .  {* Set the format of a file being written.  *}
 259 .  bool (*_bfd_set_format[bfd_type_end]) (bfd *);
 260 .
 261 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
 262 .  bool (*_bfd_write_contents[bfd_type_end]) (bfd *);
 263 .
 264 The general target vector.  These vectors are initialized using the
 265 BFD_JUMP_TABLE macros.
 266 .
 267 .  {* Generic entry points.  *}
 268 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
 269 .  NAME##_close_and_cleanup, \
 270 .  NAME##_bfd_free_cached_info, \
 271 .  NAME##_new_section_hook, \
 272 .  NAME##_get_section_contents, \
 273 .  NAME##_get_section_contents_in_window
 274 .
 275 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
 276 .  bool (*_close_and_cleanup) (bfd *);
 277 .  {* Ask the BFD to free all cached information.  *}
 278 .  bool (*_bfd_free_cached_info) (bfd *);
 279 .  {* Called when a new section is created.  *}
 280 .  bool (*_new_section_hook) (bfd *, sec_ptr);
 281 .  {* Read the contents of a section.  *}
 282 .  bool (*_bfd_get_section_contents) (bfd *, sec_ptr, void *, file_ptr,
 283 .                                     bfd_size_type);
 284 .  bool (*_bfd_get_section_contents_in_window) (bfd *, sec_ptr, bfd_window *,
 285 .                                               file_ptr, bfd_size_type);
 286 .
 287 .  {* Entry points to copy private data.  *}
 288 .#define BFD_JUMP_TABLE_COPY(NAME) \
 289 .  NAME##_bfd_copy_private_bfd_data, \
 290 .  NAME##_bfd_merge_private_bfd_data, \
 291 .  _bfd_generic_init_private_section_data, \
 292 .  NAME##_bfd_copy_private_section_data, \
 293 .  NAME##_bfd_copy_private_symbol_data, \
 294 .  NAME##_bfd_copy_private_header_data, \
 295 .  NAME##_bfd_set_private_flags, \
 296 .  NAME##_bfd_print_private_bfd_data
 297 .
 298 .  {* Called to copy BFD general private data from one object file
 299 .     to another.  *}
 300 .  bool (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
 301 .  {* Called to merge BFD general private data from one object file
 302 .     to a common output file when linking.  *}
 303 .  bool (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *);
 304 .  {* Called to initialize BFD private section data from one object file
 305 .     to another.  *}
 306 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
 307 .       BFD_SEND (obfd, _bfd_init_private_section_data, \
 308 .                 (ibfd, isec, obfd, osec, link_info))
 309 .  bool (*_bfd_init_private_section_data) (bfd *, sec_ptr, bfd *, sec_ptr,
 310 .                                          struct bfd_link_info *);
 311 .  {* Called to copy BFD private section data from one object file
 312 .     to another.  *}
 313 .  bool (*_bfd_copy_private_section_data) (bfd *, sec_ptr, bfd *, sec_ptr);
 314 .  {* Called to copy BFD private symbol data from one symbol
 315 .     to another.  *}
 316 .  bool (*_bfd_copy_private_symbol_data) (bfd *, asymbol *,
 317 .                                         bfd *, asymbol *);
 318 .  {* Called to copy BFD private header data from one object file
 319 .     to another.  *}
 320 .  bool (*_bfd_copy_private_header_data) (bfd *, bfd *);
 321 .  {* Called to set private backend flags.  *}
 322 .  bool (*_bfd_set_private_flags) (bfd *, flagword);
 323 .
 324 .  {* Called to print private BFD data.  *}
 325 .  bool (*_bfd_print_private_bfd_data) (bfd *, void *);
 326 .
 327 .  {* Core file entry points.  *}
 328 .#define BFD_JUMP_TABLE_CORE(NAME) \
 329 .  NAME##_core_file_failing_command, \
 330 .  NAME##_core_file_failing_signal, \
 331 .  NAME##_core_file_matches_executable_p, \
 332 .  NAME##_core_file_pid
 333 .
 334 .  char *(*_core_file_failing_command) (bfd *);
 335 .  int   (*_core_file_failing_signal) (bfd *);
 336 .  bool  (*_core_file_matches_executable_p) (bfd *, bfd *);
 337 .  int   (*_core_file_pid) (bfd *);
 338 .
 339 .  {* Archive entry points.  *}
 340 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
 341 .  NAME##_slurp_armap, \
 342 .  NAME##_slurp_extended_name_table, \
 343 .  NAME##_construct_extended_name_table, \
 344 .  NAME##_truncate_arname, \
 345 .  NAME##_write_armap, \
 346 .  NAME##_read_ar_hdr, \
 347 .  NAME##_write_ar_hdr, \
 348 .  NAME##_openr_next_archived_file, \
 349 .  NAME##_get_elt_at_index, \
 350 .  NAME##_generic_stat_arch_elt, \
 351 .  NAME##_update_armap_timestamp
 352 .
 353 .  bool (*_bfd_slurp_armap) (bfd *);
 354 .  bool (*_bfd_slurp_extended_name_table) (bfd *);
 355 .  bool (*_bfd_construct_extended_name_table) (bfd *, char **,
 356 .                                              bfd_size_type *,
 357 .                                              const char **);
 358 .  void (*_bfd_truncate_arname) (bfd *, const char *, char *);
 359 .  bool (*write_armap) (bfd *, unsigned, struct orl *, unsigned, int);
 360 .  void *(*_bfd_read_ar_hdr_fn) (bfd *);
 361 .  bool (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
 362 .  bfd *(*openr_next_archived_file) (bfd *, bfd *);
 363 .#define bfd_get_elt_at_index(b,i) \
 364 .       BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
 365 .  bfd *(*_bfd_get_elt_at_index) (bfd *, symindex);
 366 .  int  (*_bfd_stat_arch_elt) (bfd *, struct stat *);
 367 .  bool (*_bfd_update_armap_timestamp) (bfd *);
 368 .
 369 .  {* Entry points used for symbols.  *}
 370 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
 371 .  NAME##_get_symtab_upper_bound, \
 372 .  NAME##_canonicalize_symtab, \
 373 .  NAME##_make_empty_symbol, \
 374 .  NAME##_print_symbol, \
 375 .  NAME##_get_symbol_info, \
 376 .  NAME##_get_symbol_version_string, \
 377 .  NAME##_bfd_is_local_label_name, \
 378 .  NAME##_bfd_is_target_special_symbol, \
 379 .  NAME##_get_lineno, \
 380 .  NAME##_find_nearest_line, \
 381 .  NAME##_find_nearest_line_with_alt, \
 382 .  NAME##_find_line, \
 383 .  NAME##_find_inliner_info, \
 384 .  NAME##_bfd_make_debug_symbol, \
 385 .  NAME##_read_minisymbols, \
 386 .  NAME##_minisymbol_to_symbol
 387 .
 388 .  long (*_bfd_get_symtab_upper_bound) (bfd *);
 389 .  long (*_bfd_canonicalize_symtab) (bfd *, struct bfd_symbol **);
 390 .  struct bfd_symbol *
 391 .       (*_bfd_make_empty_symbol) (bfd *);
 392 .  void (*_bfd_print_symbol) (bfd *, void *, struct bfd_symbol *,
 393 .                             bfd_print_symbol_type);
 394 .#define bfd_print_symbol(b,p,s,e) \
 395 .       BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
 396 .  void  (*_bfd_get_symbol_info) (bfd *, struct bfd_symbol *, symbol_info *);
 397 .#define bfd_get_symbol_info(b,p,e) \
 398 .       BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
 399 .  const char *
 400 .       (*_bfd_get_symbol_version_string) (bfd *, struct bfd_symbol *,
 401 .                                          bool, bool *);
 402 .#define bfd_get_symbol_version_string(b,s,p,h) \
 403 .       BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,p,h))
 404 .  bool (*_bfd_is_local_label_name) (bfd *, const char *);
 405 .  bool (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
 406 .  alent *
 407 .       (*_get_lineno) (bfd *, struct bfd_symbol *);
 408 .  bool (*_bfd_find_nearest_line) (bfd *, struct bfd_symbol **,
 409 .                                  struct bfd_section *, bfd_vma,
 410 .                                  const char **, const char **,
 411 .                                  unsigned int *, unsigned int *);
 412 .  bool (*_bfd_find_nearest_line_with_alt) (bfd *, const char *,
 413 .                                           struct bfd_symbol **,
 414 .                                           struct bfd_section *, bfd_vma,
 415 .                                           const char **, const char **,
 416 .                                           unsigned int *, unsigned int *);
 417 .  bool (*_bfd_find_line) (bfd *, struct bfd_symbol **,
 418 .                          struct bfd_symbol *, const char **,
 419 .                          unsigned int *);
 420 .  bool (*_bfd_find_inliner_info)
 421 .    (bfd *, const char **, const char **, unsigned int *);
 422 . {* Back-door to allow format-aware applications to create debug symbols
 423 .    while using BFD for everything else.  Currently used by the assembler
 424 .    when creating COFF files.  *}
 425 .  asymbol *
 426 .       (*_bfd_make_debug_symbol) (bfd *, void *, unsigned long size);
 427 .#define bfd_read_minisymbols(b, d, m, s) \
 428 .       BFD_SEND (b, _read_minisymbols, (b, d, m, s))
 429 .  long (*_read_minisymbols) (bfd *, bool, void **, unsigned int *);
 430 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
 431 .       BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
 432 .  asymbol *
 433 .       (*_minisymbol_to_symbol) (bfd *, bool, const void *, asymbol *);
 434 .
 435 .  {* Routines for relocs.  *}
 436 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
 437 .  NAME##_get_reloc_upper_bound, \
 438 .  NAME##_canonicalize_reloc, \
 439 .  NAME##_set_reloc, \
 440 .  NAME##_bfd_reloc_type_lookup, \
 441 .  NAME##_bfd_reloc_name_lookup
 442 .
 443 .  long (*_get_reloc_upper_bound) (bfd *, sec_ptr);
 444 .  long (*_bfd_canonicalize_reloc) (bfd *, sec_ptr, arelent **,
 445 .                                   struct bfd_symbol **);
 446 .  void (*_bfd_set_reloc) (bfd *, sec_ptr, arelent **, unsigned int);
 447 .  {* See documentation on reloc types.  *}
 448 .  reloc_howto_type *
 449 .       (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
 450 .  reloc_howto_type *
 451 .       (*reloc_name_lookup) (bfd *, const char *);
 452 .
 453 .  {* Routines used when writing an object file.  *}
 454 .#define BFD_JUMP_TABLE_WRITE(NAME) \
 455 .  NAME##_set_arch_mach, \
 456 .  NAME##_set_section_contents
 457 .
 458 .  bool (*_bfd_set_arch_mach) (bfd *, enum bfd_architecture,
 459 .                                     unsigned long);
 460 .  bool (*_bfd_set_section_contents) (bfd *, sec_ptr, const void *,
 461 .                                     file_ptr, bfd_size_type);
 462 .
 463 .  {* Routines used by the linker.  *}
 464 .#define BFD_JUMP_TABLE_LINK(NAME) \
 465 .  NAME##_sizeof_headers, \
 466 .  NAME##_bfd_get_relocated_section_contents, \
 467 .  NAME##_bfd_relax_section, \
 468 .  NAME##_bfd_link_hash_table_create, \
 469 .  NAME##_bfd_link_add_symbols, \
 470 .  NAME##_bfd_link_just_syms, \
 471 .  NAME##_bfd_copy_link_hash_symbol_type, \
 472 .  NAME##_bfd_final_link, \
 473 .  NAME##_bfd_link_split_section, \
 474 .  NAME##_bfd_link_check_relocs, \
 475 .  NAME##_bfd_gc_sections, \
 476 .  NAME##_bfd_lookup_section_flags, \
 477 .  NAME##_bfd_merge_sections, \
 478 .  NAME##_bfd_is_group_section, \
 479 .  NAME##_bfd_group_name, \
 480 .  NAME##_bfd_discard_group, \
 481 .  NAME##_section_already_linked, \
 482 .  NAME##_bfd_define_common_symbol, \
 483 .  NAME##_bfd_link_hide_symbol, \
 484 .  NAME##_bfd_define_start_stop
 485 .
 486 .  int  (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
 487 .  bfd_byte *
 488 .       (*_bfd_get_relocated_section_contents) (bfd *,
 489 .                                               struct bfd_link_info *,
 490 .                                               struct bfd_link_order *,
 491 .                                               bfd_byte *, bool,
 492 .                                               struct bfd_symbol **);
 493 .
 494 .  bool (*_bfd_relax_section) (bfd *, struct bfd_section *,
 495 .                              struct bfd_link_info *, bool *);
 496 .
 497 .  {* Create a hash table for the linker.  Different backends store
 498 .     different information in this table.  *}
 499 .  struct bfd_link_hash_table *
 500 .       (*_bfd_link_hash_table_create) (bfd *);
 501 .
 502 .  {* Add symbols from this object file into the hash table.  *}
 503 .  bool (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
 504 .
 505 .  {* Indicate that we are only retrieving symbol values from this section.  *}
 506 .  void (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
 507 .
 508 .  {* Copy the symbol type and other attributes for a linker script
 509 .     assignment of one symbol to another.  *}
 510 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
 511 .       BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
 512 .  void (*_bfd_copy_link_hash_symbol_type) (bfd *,
 513 .                                           struct bfd_link_hash_entry *,
 514 .                                           struct bfd_link_hash_entry *);
 515 .
 516 .  {* Do a link based on the link_order structures attached to each
 517 .     section of the BFD.  *}
 518 .  bool (*_bfd_final_link) (bfd *, struct bfd_link_info *);
 519 .
 520 .  {* Should this section be split up into smaller pieces during linking.  *}
 521 .  bool (*_bfd_link_split_section) (bfd *, struct bfd_section *);
 522 .
 523 .  {* Check the relocations in the bfd for validity.  *}
 524 .  bool (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
 525 .
 526 .  {* Remove sections that are not referenced from the output.  *}
 527 .  bool (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
 528 .
 529 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
 530 .  bool (*_bfd_lookup_section_flags) (struct bfd_link_info *,
 531 .                                     struct flag_info *, asection *);
 532 .
 533 .  {* Attempt to merge SEC_MERGE sections.  *}
 534 .  bool (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
 535 .
 536 .  {* Is this section a member of a group?  *}
 537 .  bool (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
 538 .
 539 .  {* The group name, if section is a member of a group.  *}
 540 .  const char *(*_bfd_group_name) (bfd *, const struct bfd_section *);
 541 .
 542 .  {* Discard members of a group.  *}
 543 .  bool (*_bfd_discard_group) (bfd *, struct bfd_section *);
 544 .
 545 .  {* Check if SEC has been already linked during a reloceatable or
 546 .     final link.  *}
 547 .  bool (*_section_already_linked) (bfd *, asection *,
 548 .                                   struct bfd_link_info *);
 549 .
 550 .  {* Define a common symbol.  *}
 551 .  bool (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
 552 .                                     struct bfd_link_hash_entry *);
 553 .
 554 .  {* Hide a symbol.  *}
 555 .  void (*_bfd_link_hide_symbol) (bfd *, struct bfd_link_info *,
 556 .                                 struct bfd_link_hash_entry *);
 557 .
 558 .  {* Define a __start, __stop, .startof. or .sizeof. symbol.  *}
 559 .  struct bfd_link_hash_entry *
 560 .       (*_bfd_define_start_stop) (struct bfd_link_info *, const char *,
 561 .                                  asection *);
 562 .
 563 .  {* Routines to handle dynamic symbols and relocs.  *}
 564 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
 565 .  NAME##_get_dynamic_symtab_upper_bound, \
 566 .  NAME##_canonicalize_dynamic_symtab, \
 567 .  NAME##_get_synthetic_symtab, \
 568 .  NAME##_get_dynamic_reloc_upper_bound, \
 569 .  NAME##_canonicalize_dynamic_reloc
 570 .
 571 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
 572 .  long (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
 573 .  {* Read in the dynamic symbols.  *}
 574 .  long (*_bfd_canonicalize_dynamic_symtab) (bfd *, struct bfd_symbol **);
 575 .  {* Create synthetized symbols.  *}
 576 .  long (*_bfd_get_synthetic_symtab) (bfd *, long, struct bfd_symbol **,
 577 .                                     long, struct bfd_symbol **,
 578 .                                     struct bfd_symbol **);
 579 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
 580 .  long (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
 581 .  {* Read in the dynamic relocs.  *}
 582 .  long (*_bfd_canonicalize_dynamic_reloc) (bfd *, arelent **,
 583 .                                           struct bfd_symbol **);
 584 .
 585
 586 A pointer to an alternative bfd_target in case the current one is not
 587 satisfactory.  This can happen when the target cpu supports both big
 588 and little endian code, and target chosen by the linker has the wrong
 589 endianness.  The function open_output() in ld/ldlang.c uses this field
 590 to find an alternative output format that is suitable.
 591
 592 .  {* Opposite endian version of this target.  *}
 593 .  const struct bfd_target *alternative_target;
 594 .
 595
 596 .  {* Data for use by back-end routines, which isn't
 597 .     generic enough to belong in this structure.  *}
 598 .  const void *backend_data;
 599 .
 600 .} bfd_target;
 601 .
 602 .static inline const char *
 603 .bfd_get_target (const bfd *abfd)
 604 .{
 605 .  return abfd->xvec->name;
 606 .}
 607 .
 608 .static inline enum bfd_flavour
 609 .bfd_get_flavour (const bfd *abfd)
 610 .{
 611 .  return abfd->xvec->flavour;
 612 .}
 613 .
 614 .static inline flagword
 615 .bfd_applicable_file_flags (const bfd *abfd)
 616 .{
 617 .  return abfd->xvec->object_flags;
 618 .}
 619 .
 620 .static inline bool
 621 .bfd_family_coff (const bfd *abfd)
 622 .{
 623 .  return (bfd_get_flavour (abfd) == bfd_target_coff_flavour
 624 .          || bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
 625 .}
 626 .
 627 .static inline bool
 628 .bfd_big_endian (const bfd *abfd)
 629 .{
 630 .  return abfd->xvec->byteorder == BFD_ENDIAN_BIG;
 631 .}
 632 .static inline bool
 633 .bfd_little_endian (const bfd *abfd)
 634 .{
 635 .  return abfd->xvec->byteorder == BFD_ENDIAN_LITTLE;
 636 .}
 637 .
 638 .static inline bool
 639 .bfd_header_big_endian (const bfd *abfd)
 640 .{
 641 .  return abfd->xvec->header_byteorder == BFD_ENDIAN_BIG;
 642 .}
 643 .
 644 .static inline bool
 645 .bfd_header_little_endian (const bfd *abfd)
 646 .{
 647 .  return abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE;
 648 .}
 649 .
 650 .static inline flagword
 651 .bfd_applicable_section_flags (const bfd *abfd)
 652 .{
 653 .  return abfd->xvec->section_flags;
 654 .}
 655 .
 656 .static inline char
 657 .bfd_get_symbol_leading_char (const bfd *abfd)
 658 .{
 659 .  return abfd->xvec->symbol_leading_char;
 660 .}
 661 .
 662 .static inline enum bfd_flavour
 663 .bfd_asymbol_flavour (const asymbol *sy)
 664 .{
 665 .  if ((sy->flags & BSF_SYNTHETIC) != 0)
 666 .    return bfd_target_unknown_flavour;
 667 .  return sy->the_bfd->xvec->flavour;
 668 .}
 669 .
 670 .static inline bool
 671 .bfd_keep_unused_section_symbols (const bfd *abfd)
 672 .{
 673 .  return abfd->xvec->keep_unused_section_symbols;
 674 .}
 675 .
 676 */
 677
 678 /* All known xvecs (even those that don't compile on all systems).
 679    Alphabetized for easy reference.
 680    They are listed a second time below, since
 681    we can't intermix extern's and initializers.  */
 682 extern const bfd_target aarch64_elf32_be_vec;
 683 extern const bfd_target aarch64_elf32_le_vec;
 684 extern const bfd_target aarch64_elf64_be_vec;
 685 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
 686 extern const bfd_target aarch64_elf64_le_vec;
 687 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
 688 extern const bfd_target aarch64_mach_o_vec;
 689 extern const bfd_target aarch64_pei_le_vec;
 690 extern const bfd_target aarch64_pe_le_vec;
 691 extern const bfd_target alpha_ecoff_le_vec;
 692 extern const bfd_target alpha_elf64_vec;
 693 extern const bfd_target alpha_elf64_fbsd_vec;
 694 extern const bfd_target alpha_vms_vec;
 695 extern const bfd_target alpha_vms_lib_txt_vec;
 696 extern const bfd_target am33_elf32_linux_vec;
 697 extern const bfd_target amdgcn_elf64_le_vec;
 698 extern const bfd_target aout_vec;
 699 extern const bfd_target arc_elf32_be_vec;
 700 extern const bfd_target arc_elf32_le_vec;
 701 extern const bfd_target arm_elf32_be_vec;
 702 extern const bfd_target arm_elf32_le_vec;
 703 extern const bfd_target arm_elf32_fdpic_be_vec;
 704 extern const bfd_target arm_elf32_fdpic_le_vec;
 705 extern const bfd_target arm_elf32_nacl_be_vec;
 706 extern const bfd_target arm_elf32_nacl_le_vec;
 707 extern const bfd_target arm_elf32_vxworks_be_vec;
 708 extern const bfd_target arm_elf32_vxworks_le_vec;
 709 extern const bfd_target arm_mach_o_vec;
 710 extern const bfd_target arm_pe_be_vec;
 711 extern const bfd_target arm_pe_le_vec;
 712 extern const bfd_target arm_pe_wince_be_vec;
 713 extern const bfd_target arm_pe_wince_le_vec;
 714 extern const bfd_target arm_pei_be_vec;
 715 extern const bfd_target arm_pei_le_vec;
 716 extern const bfd_target arm_pei_wince_be_vec;
 717 extern const bfd_target arm_pei_wince_le_vec;
 718 extern const bfd_target avr_elf32_vec;
 719 extern const bfd_target bfin_elf32_vec;
 720 extern const bfd_target bfin_elf32_fdpic_vec;
 721 extern const bfd_target cr16_elf32_vec;
 722 extern const bfd_target cris_aout_vec;
 723 extern const bfd_target cris_elf32_vec;
 724 extern const bfd_target cris_elf32_us_vec;
 725 extern const bfd_target crx_elf32_vec;
 726 extern const bfd_target csky_elf32_be_vec;
 727 extern const bfd_target csky_elf32_le_vec;
 728 extern const bfd_target d10v_elf32_vec;
 729 extern const bfd_target d30v_elf32_vec;
 730 extern const bfd_target dlx_elf32_be_vec;
 731 extern const bfd_target elf32_be_vec;
 732 extern const bfd_target elf32_le_vec;
 733 extern const bfd_target elf64_be_vec;
 734 extern const bfd_target elf64_le_vec;
 735 extern const bfd_target bpf_elf64_le_vec;
 736 extern const bfd_target bpf_elf64_be_vec;
 737 extern const bfd_target epiphany_elf32_vec;
 738 extern const bfd_target fr30_elf32_vec;
 739 extern const bfd_target frv_elf32_vec;
 740 extern const bfd_target frv_elf32_fdpic_vec;
 741 extern const bfd_target h8300_elf32_vec;
 742 extern const bfd_target h8300_elf32_linux_vec;
 743 extern const bfd_target hppa_elf32_vec;
 744 extern const bfd_target hppa_elf32_linux_vec;
 745 extern const bfd_target hppa_elf32_nbsd_vec;
 746 extern const bfd_target hppa_elf64_vec;
 747 extern const bfd_target hppa_elf64_linux_vec;
 748 extern const bfd_target hppa_som_vec;
 749 extern const bfd_target i386_aout_vec;
 750 extern const bfd_target i386_aout_bsd_vec;
 751 extern const bfd_target i386_aout_lynx_vec;
 752 extern const bfd_target i386_coff_vec;
 753 extern const bfd_target i386_coff_go32_vec;
 754 extern const bfd_target i386_coff_go32stubbed_vec;
 755 extern const bfd_target i386_coff_lynx_vec;
 756 extern const bfd_target i386_elf32_vec;
 757 extern const bfd_target i386_elf32_fbsd_vec;
 758 extern const bfd_target i386_elf32_sol2_vec;
 759 extern const bfd_target i386_elf32_vxworks_vec;
 760 extern const bfd_target i386_mach_o_vec;
 761 extern const bfd_target i386_msdos_vec;
 762 extern const bfd_target i386_pe_vec;
 763 extern const bfd_target i386_pe_big_vec;
 764 extern const bfd_target i386_pei_vec;
 765 extern const bfd_target iamcu_elf32_vec;
 766 extern const bfd_target ia64_elf32_be_vec;
 767 extern const bfd_target ia64_elf32_hpux_be_vec;
 768 extern const bfd_target ia64_elf64_be_vec;
 769 extern const bfd_target ia64_elf64_le_vec;
 770 extern const bfd_target ia64_elf64_hpux_be_vec;
 771 extern const bfd_target ia64_elf64_vms_vec;
 772 extern const bfd_target ia64_pei_vec;
 773 extern const bfd_target ip2k_elf32_vec;
 774 extern const bfd_target iq2000_elf32_vec;
 775 extern const bfd_target lm32_elf32_vec;
 776 extern const bfd_target lm32_elf32_fdpic_vec;
 777 extern const bfd_target loongarch_elf64_vec;
 778 extern const bfd_target loongarch_elf32_vec;
 779 extern const bfd_target loongarch64_pei_vec;
 780 extern const bfd_target m32c_elf32_vec;
 781 extern const bfd_target m32r_elf32_vec;
 782 extern const bfd_target m32r_elf32_le_vec;
 783 extern const bfd_target m32r_elf32_linux_vec;
 784 extern const bfd_target m32r_elf32_linux_le_vec;
 785 extern const bfd_target m68hc11_elf32_vec;
 786 extern const bfd_target m68hc12_elf32_vec;
 787 extern const bfd_target m68k_elf32_vec;
 788 extern const bfd_target s12z_elf32_vec;
 789 extern const bfd_target mach_o_be_vec;
 790 extern const bfd_target mach_o_le_vec;
 791 extern const bfd_target mach_o_fat_vec;
 792 extern const bfd_target mcore_elf32_be_vec;
 793 extern const bfd_target mcore_elf32_le_vec;
 794 extern const bfd_target mcore_pe_be_vec;
 795 extern const bfd_target mcore_pe_le_vec;
 796 extern const bfd_target mcore_pei_be_vec;
 797 extern const bfd_target mcore_pei_le_vec;
 798 extern const bfd_target mep_elf32_vec;
 799 extern const bfd_target mep_elf32_le_vec;
 800 extern const bfd_target metag_elf32_vec;
 801 extern const bfd_target microblaze_elf32_vec;
 802 extern const bfd_target microblaze_elf32_le_vec;
 803 extern const bfd_target mips_ecoff_be_vec;
 804 extern const bfd_target mips_ecoff_le_vec;
 805 extern const bfd_target mips_ecoff_bele_vec;
 806 extern const bfd_target mips_elf32_be_vec;
 807 extern const bfd_target mips_elf32_le_vec;
 808 extern const bfd_target mips_elf32_n_be_vec;
 809 extern const bfd_target mips_elf32_n_le_vec;
 810 extern const bfd_target mips_elf32_ntrad_be_vec;
 811 extern const bfd_target mips_elf32_ntrad_le_vec;
 812 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
 813 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
 814 extern const bfd_target mips_elf32_trad_be_vec;
 815 extern const bfd_target mips_elf32_trad_le_vec;
 816 extern const bfd_target mips_elf32_tradfbsd_be_vec;
 817 extern const bfd_target mips_elf32_tradfbsd_le_vec;
 818 extern const bfd_target mips_elf32_vxworks_be_vec;
 819 extern const bfd_target mips_elf32_vxworks_le_vec;
 820 extern const bfd_target mips_elf64_be_vec;
 821 extern const bfd_target mips_elf64_le_vec;
 822 extern const bfd_target mips_elf64_trad_be_vec;
 823 extern const bfd_target mips_elf64_trad_le_vec;
 824 extern const bfd_target mips_elf64_tradfbsd_be_vec;
 825 extern const bfd_target mips_elf64_tradfbsd_le_vec;
 826 extern const bfd_target mmix_elf64_vec;
 827 extern const bfd_target mmix_mmo_vec;
 828 extern const bfd_target mn10200_elf32_vec;
 829 extern const bfd_target mn10300_elf32_vec;
 830 extern const bfd_target moxie_elf32_be_vec;
 831 extern const bfd_target moxie_elf32_le_vec;
 832 extern const bfd_target msp430_elf32_vec;
 833 extern const bfd_target msp430_elf32_ti_vec;
 834 extern const bfd_target mt_elf32_vec;
 835 extern const bfd_target nds32_elf32_be_vec;
 836 extern const bfd_target nds32_elf32_le_vec;
 837 extern const bfd_target nds32_elf32_linux_be_vec;
 838 extern const bfd_target nds32_elf32_linux_le_vec;
 839 extern const bfd_target nfp_elf64_vec;
 840 extern const bfd_target nios2_elf32_be_vec;
 841 extern const bfd_target nios2_elf32_le_vec;
 842 extern const bfd_target ns32k_aout_pc532mach_vec;
 843 extern const bfd_target ns32k_aout_pc532nbsd_vec;
 844 extern const bfd_target or1k_elf32_vec;
 845 extern const bfd_target pdb_vec;
 846 extern const bfd_target pdp11_aout_vec;
 847 extern const bfd_target pef_vec;
 848 extern const bfd_target pef_xlib_vec;
 849 extern const bfd_target pj_elf32_vec;
 850 extern const bfd_target pj_elf32_le_vec;
 851 extern const bfd_target plugin_vec;
 852 extern const bfd_target powerpc_boot_vec;
 853 extern const bfd_target powerpc_elf32_vec;
 854 extern const bfd_target powerpc_elf32_le_vec;
 855 extern const bfd_target powerpc_elf32_fbsd_vec;
 856 extern const bfd_target powerpc_elf32_vxworks_vec;
 857 extern const bfd_target powerpc_elf64_vec;
 858 extern const bfd_target powerpc_elf64_le_vec;
 859 extern const bfd_target powerpc_elf64_fbsd_vec;
 860 extern const bfd_target powerpc_elf64_fbsd_le_vec;
 861 extern const bfd_target powerpc_xcoff_vec;
 862 extern const bfd_target pru_elf32_vec;
 863 extern const bfd_target riscv_elf32_vec;
 864 extern const bfd_target riscv_elf64_vec;
 865 extern const bfd_target riscv_elf32_be_vec;
 866 extern const bfd_target riscv_elf64_be_vec;
 867 extern const bfd_target rl78_elf32_vec;
 868 extern const bfd_target rs6000_xcoff64_vec;
 869 extern const bfd_target rs6000_xcoff64_aix_vec;
 870 extern const bfd_target rs6000_xcoff_vec;
 871 extern const bfd_target rx_elf32_be_vec;
 872 extern const bfd_target rx_elf32_be_ns_vec;
 873 extern const bfd_target rx_elf32_le_vec;
 874 extern const bfd_target rx_elf32_linux_le_vec;
 875 extern const bfd_target s390_elf32_vec;
 876 extern const bfd_target s390_elf64_vec;
 877 extern const bfd_target score_elf32_be_vec;
 878 extern const bfd_target score_elf32_le_vec;
 879 extern const bfd_target sh_coff_vec;
 880 extern const bfd_target sh_coff_le_vec;
 881 extern const bfd_target sh_coff_small_vec;
 882 extern const bfd_target sh_coff_small_le_vec;
 883 extern const bfd_target sh_elf32_vec;
 884 extern const bfd_target sh_elf32_le_vec;
 885 extern const bfd_target sh_elf32_fdpic_be_vec;
 886 extern const bfd_target sh_elf32_fdpic_le_vec;
 887 extern const bfd_target sh_elf32_linux_vec;
 888 extern const bfd_target sh_elf32_linux_be_vec;
 889 extern const bfd_target sh_elf32_nbsd_vec;
 890 extern const bfd_target sh_elf32_nbsd_le_vec;
 891 extern const bfd_target sh_elf32_vxworks_vec;
 892 extern const bfd_target sh_elf32_vxworks_le_vec;
 893 extern const bfd_target sh_pe_le_vec;
 894 extern const bfd_target sh_pei_le_vec;
 895 extern const bfd_target sparc_elf32_vec;
 896 extern const bfd_target sparc_elf32_sol2_vec;
 897 extern const bfd_target sparc_elf32_vxworks_vec;
 898 extern const bfd_target sparc_elf64_vec;
 899 extern const bfd_target sparc_elf64_fbsd_vec;
 900 extern const bfd_target sparc_elf64_sol2_vec;
 901 extern const bfd_target spu_elf32_vec;
 902 extern const bfd_target sym_vec;
 903 extern const bfd_target tic30_coff_vec;
 904 extern const bfd_target tic4x_coff0_vec;
 905 extern const bfd_target tic4x_coff0_beh_vec;
 906 extern const bfd_target tic4x_coff1_vec;
 907 extern const bfd_target tic4x_coff1_beh_vec;
 908 extern const bfd_target tic4x_coff2_vec;
 909 extern const bfd_target tic4x_coff2_beh_vec;
 910 extern const bfd_target tic54x_coff0_vec;
 911 extern const bfd_target tic54x_coff0_beh_vec;
 912 extern const bfd_target tic54x_coff1_vec;
 913 extern const bfd_target tic54x_coff1_beh_vec;
 914 extern const bfd_target tic54x_coff2_vec;
 915 extern const bfd_target tic54x_coff2_beh_vec;
 916 extern const bfd_target tic6x_elf32_be_vec;
 917 extern const bfd_target tic6x_elf32_le_vec;
 918 extern const bfd_target tic6x_elf32_c6000_be_vec;
 919 extern const bfd_target tic6x_elf32_c6000_le_vec;
 920 extern const bfd_target tic6x_elf32_linux_be_vec;
 921 extern const bfd_target tic6x_elf32_linux_le_vec;
 922 extern const bfd_target tilegx_elf32_be_vec;
 923 extern const bfd_target tilegx_elf32_le_vec;
 924 extern const bfd_target tilegx_elf64_be_vec;
 925 extern const bfd_target tilegx_elf64_le_vec;
 926 extern const bfd_target tilepro_elf32_vec;
 927 extern const bfd_target v800_elf32_vec;
 928 extern const bfd_target v850_elf32_vec;
 929 extern const bfd_target ft32_elf32_vec;
 930 extern const bfd_target vax_aout_1knbsd_vec;
 931 extern const bfd_target vax_aout_nbsd_vec;
 932 extern const bfd_target vax_elf32_vec;
 933 extern const bfd_target visium_elf32_vec;
 934 extern const bfd_target wasm_vec;
 935 extern const bfd_target wasm32_elf32_vec;
 936 extern const bfd_target x86_64_coff_vec;
 937 extern const bfd_target x86_64_elf32_vec;
 938 extern const bfd_target x86_64_elf64_vec;
 939 extern const bfd_target x86_64_elf64_cloudabi_vec;
 940 extern const bfd_target x86_64_elf64_fbsd_vec;
 941 extern const bfd_target x86_64_elf64_sol2_vec;
 942 extern const bfd_target x86_64_mach_o_vec;
 943 extern const bfd_target x86_64_pe_vec;
 944 extern const bfd_target x86_64_pe_big_vec;
 945 extern const bfd_target x86_64_pei_vec;
 946 extern const bfd_target xgate_elf32_vec;
 947 extern const bfd_target xstormy16_elf32_vec;
 948 extern const bfd_target xtensa_elf32_be_vec;
 949 extern const bfd_target xtensa_elf32_le_vec;
 950 extern const bfd_target z80_coff_vec;
 951 extern const bfd_target z80_elf32_vec;
 952 extern const bfd_target z8k_coff_vec;
 953
 954 /* These are always included.  */
 955 extern const bfd_target srec_vec;
 956 extern const bfd_target symbolsrec_vec;
 957 extern const bfd_target verilog_vec;
 958 extern const bfd_target tekhex_vec;
 959 extern const bfd_target binary_vec;
 960 extern const bfd_target ihex_vec;
 961
 962 /* All of the xvecs for core files.  */
 963 extern const bfd_target core_aix386_vec;
 964 extern const bfd_target core_cisco_be_vec;
 965 extern const bfd_target core_cisco_le_vec;
 966 extern const bfd_target core_hppabsd_vec;
 967 extern const bfd_target core_hpux_vec;
 968 extern const bfd_target core_irix_vec;
 969 extern const bfd_target core_netbsd_vec;
 970 extern const bfd_target core_osf_vec;
 971 extern const bfd_target core_ptrace_vec;
 972 extern const bfd_target core_sco5_vec;
 973 extern const bfd_target core_trad_vec;
 974
 975 static const bfd_target * const _bfd_target_vector[] =
 976 {
 977 #ifdef SELECT_VECS
 978
 979         SELECT_VECS,
 980
 981 #else /* not SELECT_VECS */
 982
 983 #ifdef DEFAULT_VECTOR
 984         &DEFAULT_VECTOR,
 985 #endif
 986         /* This list is alphabetized to make it easy to compare
 987            with other vector lists -- the decls above and
 988            the case statement in configure.ac.
 989            Try to keep it in order when adding new targets, and
 990            use a name of the form <cpu>_<format>_<other>_<endian>_vec.
 991            Note that sorting is done as if _<endian>_vec wasn't present.
 992            Vectors that don't compile on all systems, or aren't finished,
 993            should have an entry here with #if 0 around it, to show that
 994            it wasn't omitted by mistake.  */
 995 #ifdef BFD64
 996         &aarch64_elf32_be_vec,
 997         &aarch64_elf32_le_vec,
 998         &aarch64_elf64_be_vec,
 999         &aarch64_elf64_be_cloudabi_vec,
1000         &aarch64_elf64_le_vec,
1001         &aarch64_elf64_le_cloudabi_vec,
1002         &aarch64_mach_o_vec,
1003         &aarch64_pe_le_vec,
1004         &aarch64_pei_le_vec,
1005 #endif
1006
1007 #ifdef BFD64
1008         &amdgcn_elf64_le_vec,
1009 #endif
1010
1011 #ifdef BFD64
1012         &alpha_ecoff_le_vec,
1013         &alpha_elf64_vec,
1014         &alpha_elf64_fbsd_vec,
1015         &alpha_vms_vec,
1016 #endif
1017         &alpha_vms_lib_txt_vec,
1018
1019         &am33_elf32_linux_vec,
1020
1021 #if 0
1022         /* Since a.out files lack decent magic numbers, no way to recognize
1023            which kind of a.out file it is.  */
1024         &aout_vec,
1025 #endif
1026
1027         &arc_elf32_be_vec,
1028         &arc_elf32_le_vec,
1029
1030         &arm_elf32_be_vec,
1031         &arm_elf32_le_vec,
1032         &arm_elf32_fdpic_be_vec,
1033         &arm_elf32_fdpic_le_vec,
1034         &arm_elf32_vxworks_be_vec,
1035         &arm_elf32_vxworks_le_vec,
1036         &arm_mach_o_vec,
1037         &arm_pe_be_vec,
1038         &arm_pe_le_vec,
1039         &arm_pe_wince_be_vec,
1040         &arm_pe_wince_le_vec,
1041         &arm_pei_be_vec,
1042         &arm_pei_le_vec,
1043         &arm_pei_wince_be_vec,
1044         &arm_pei_wince_le_vec,
1045
1046         &avr_elf32_vec,
1047
1048         &bfin_elf32_vec,
1049         &bfin_elf32_fdpic_vec,
1050
1051         &cr16_elf32_vec,
1052
1053         &cris_aout_vec,
1054         &cris_elf32_vec,
1055         &cris_elf32_us_vec,
1056
1057         &crx_elf32_vec,
1058
1059         &csky_elf32_be_vec,
1060         &csky_elf32_le_vec,
1061
1062         &d10v_elf32_vec,
1063         &d30v_elf32_vec,
1064
1065         &dlx_elf32_be_vec,
1066
1067         /* This, and other vectors, may not be used in any *.mt configuration.
1068            But that does not mean they are unnecessary.  If configured with
1069            --enable-targets=all, objdump or gdb should be able to examine
1070            the file even if we don't recognize the machine type.  */
1071         &elf32_be_vec,
1072         &elf32_le_vec,
1073 #ifdef BFD64
1074         &elf64_be_vec,
1075         &elf64_le_vec,
1076 #endif
1077
1078         &epiphany_elf32_vec,
1079
1080         &fr30_elf32_vec,
1081
1082         &frv_elf32_vec,
1083         &frv_elf32_fdpic_vec,
1084
1085         &h8300_elf32_vec,
1086         &h8300_elf32_linux_vec,
1087
1088         &hppa_elf32_vec,
1089         &hppa_elf32_linux_vec,
1090         &hppa_elf32_nbsd_vec,
1091 #ifdef BFD64
1092         &hppa_elf64_vec,
1093         &hppa_elf64_linux_vec,
1094 #endif
1095         &hppa_som_vec,
1096
1097         &i386_aout_vec,
1098         &i386_aout_bsd_vec,
1099         &i386_aout_lynx_vec,
1100         &i386_coff_vec,
1101         &i386_coff_go32_vec,
1102         &i386_coff_go32stubbed_vec,
1103         &i386_coff_lynx_vec,
1104         &i386_elf32_vec,
1105         &i386_elf32_fbsd_vec,
1106         &i386_elf32_sol2_vec,
1107         &i386_elf32_vxworks_vec,
1108         &i386_mach_o_vec,
1109         &i386_msdos_vec,
1110         &i386_pe_vec,
1111         &i386_pe_big_vec,
1112         &i386_pei_vec,
1113
1114         &iamcu_elf32_vec,
1115
1116 #ifdef BFD64
1117         &bpf_elf64_be_vec,
1118         &bpf_elf64_le_vec,
1119 #endif
1120
1121 #ifdef BFD64
1122 #if 0
1123         &ia64_elf32_be_vec,
1124 #endif
1125         &ia64_elf32_hpux_be_vec,
1126         &ia64_elf64_be_vec,
1127         &ia64_elf64_le_vec,
1128         &ia64_elf64_hpux_be_vec,
1129         &ia64_elf64_vms_vec,
1130         &ia64_pei_vec,
1131 #endif
1132
1133         &ip2k_elf32_vec,
1134         &iq2000_elf32_vec,
1135
1136         &lm32_elf32_vec,
1137
1138         &m32c_elf32_vec,
1139
1140         &m32r_elf32_vec,
1141         &m32r_elf32_le_vec,
1142         &m32r_elf32_linux_vec,
1143         &m32r_elf32_linux_le_vec,
1144
1145         &m68hc11_elf32_vec,
1146         &m68hc12_elf32_vec,
1147
1148         &m68k_elf32_vec,
1149
1150         &s12z_elf32_vec,
1151
1152         &mach_o_be_vec,
1153         &mach_o_le_vec,
1154         &mach_o_fat_vec,
1155
1156         &mcore_elf32_be_vec,
1157         &mcore_elf32_le_vec,
1158         &mcore_pe_be_vec,
1159         &mcore_pe_le_vec,
1160         &mcore_pei_be_vec,
1161         &mcore_pei_le_vec,
1162
1163         &mep_elf32_vec,
1164
1165         &metag_elf32_vec,
1166
1167         &microblaze_elf32_vec,
1168
1169         &mips_ecoff_be_vec,
1170         &mips_ecoff_le_vec,
1171         &mips_ecoff_bele_vec,
1172 #ifdef BFD64
1173         &mips_elf32_be_vec,
1174         &mips_elf32_le_vec,
1175         &mips_elf32_n_be_vec,
1176         &mips_elf32_n_le_vec,
1177         &mips_elf32_ntrad_be_vec,
1178         &mips_elf32_ntrad_le_vec,
1179         &mips_elf32_ntradfbsd_be_vec,
1180         &mips_elf32_ntradfbsd_le_vec,
1181         &mips_elf32_trad_be_vec,
1182         &mips_elf32_trad_le_vec,
1183         &mips_elf32_tradfbsd_be_vec,
1184         &mips_elf32_tradfbsd_le_vec,
1185         &mips_elf32_vxworks_be_vec,
1186         &mips_elf32_vxworks_le_vec,
1187         &mips_elf64_be_vec,
1188         &mips_elf64_le_vec,
1189         &mips_elf64_trad_be_vec,
1190         &mips_elf64_trad_le_vec,
1191         &mips_elf64_tradfbsd_be_vec,
1192         &mips_elf64_tradfbsd_le_vec,
1193 #endif
1194
1195 #ifdef BFD64
1196         &mmix_elf64_vec,
1197         &mmix_mmo_vec,
1198 #endif
1199
1200         &mn10200_elf32_vec,
1201         &mn10300_elf32_vec,
1202
1203         &moxie_elf32_be_vec,
1204         &moxie_elf32_le_vec,
1205
1206         &msp430_elf32_vec,
1207         &msp430_elf32_ti_vec,
1208
1209         &mt_elf32_vec,
1210
1211         &nds32_elf32_be_vec,
1212         &nds32_elf32_le_vec,
1213         &nds32_elf32_linux_be_vec,
1214         &nds32_elf32_linux_le_vec,
1215
1216 #ifdef BFD64
1217         &nfp_elf64_vec,
1218 #endif
1219
1220         &nios2_elf32_be_vec,
1221         &nios2_elf32_le_vec,
1222
1223         &ns32k_aout_pc532mach_vec,
1224         &ns32k_aout_pc532nbsd_vec,
1225
1226         &or1k_elf32_vec,
1227
1228         &pdb_vec,
1229
1230         &pdp11_aout_vec,
1231
1232         &pef_vec,
1233         &pef_xlib_vec,
1234
1235         &pj_elf32_vec,
1236         &pj_elf32_le_vec,
1237
1238         &powerpc_boot_vec,
1239         &powerpc_elf32_vec,
1240         &powerpc_elf32_le_vec,
1241         &powerpc_elf32_fbsd_vec,
1242         &powerpc_elf32_vxworks_vec,
1243 #ifdef BFD64
1244         &powerpc_elf64_vec,
1245         &powerpc_elf64_le_vec,
1246         &powerpc_elf64_fbsd_vec,
1247         &powerpc_elf64_fbsd_le_vec,
1248 #endif
1249 #if 0
1250         /* This has the same magic number as RS/6000.  */
1251         &powerpc_xcoff_vec,
1252 #endif
1253
1254         &pru_elf32_vec,
1255
1256 #ifdef BFD64
1257         &riscv_elf32_vec,
1258         &riscv_elf64_vec,
1259         &riscv_elf32_be_vec,
1260         &riscv_elf64_be_vec,
1261 #endif
1262         &rl78_elf32_vec,
1263
1264 #ifdef BFD64
1265         &rs6000_xcoff64_vec,
1266         &rs6000_xcoff64_aix_vec,
1267 #endif
1268         &rs6000_xcoff_vec,
1269
1270         &rx_elf32_be_vec,
1271         &rx_elf32_be_ns_vec,
1272         &rx_elf32_le_vec,
1273
1274         &s390_elf32_vec,
1275 #ifdef BFD64
1276         &s390_elf64_vec,
1277 #endif
1278
1279 #ifdef BFD64
1280         &score_elf32_be_vec,
1281         &score_elf32_le_vec,
1282 #endif
1283
1284         &sh_coff_vec,
1285         &sh_coff_le_vec,
1286         &sh_coff_small_vec,
1287         &sh_coff_small_le_vec,
1288         &sh_elf32_vec,
1289         &sh_elf32_le_vec,
1290         &sh_elf32_fdpic_be_vec,
1291         &sh_elf32_fdpic_le_vec,
1292         &sh_elf32_linux_vec,
1293         &sh_elf32_linux_be_vec,
1294         &sh_elf32_nbsd_vec,
1295         &sh_elf32_nbsd_le_vec,
1296         &sh_elf32_vxworks_vec,
1297         &sh_elf32_vxworks_le_vec,
1298         &sh_pe_le_vec,
1299         &sh_pei_le_vec,
1300
1301         &sparc_elf32_vec,
1302         &sparc_elf32_sol2_vec,
1303         &sparc_elf32_vxworks_vec,
1304 #ifdef BFD64
1305         &sparc_elf64_vec,
1306         &sparc_elf64_fbsd_vec,
1307         &sparc_elf64_sol2_vec,
1308 #endif
1309
1310         &spu_elf32_vec,
1311
1312         &sym_vec,
1313
1314         &tic30_coff_vec,
1315         &tic54x_coff0_beh_vec,
1316         &tic54x_coff0_vec,
1317         &tic54x_coff1_beh_vec,
1318         &tic54x_coff1_vec,
1319         &tic54x_coff2_beh_vec,
1320         &tic54x_coff2_vec,
1321         &tic6x_elf32_be_vec,
1322         &tic6x_elf32_le_vec,
1323
1324         &tilegx_elf32_be_vec,
1325         &tilegx_elf32_le_vec,
1326 #ifdef BFD64
1327         &tilegx_elf64_be_vec,
1328         &tilegx_elf64_le_vec,
1329 #endif
1330         &tilepro_elf32_vec,
1331
1332         &ft32_elf32_vec,
1333
1334         &v800_elf32_vec,
1335         &v850_elf32_vec,
1336
1337         &vax_aout_1knbsd_vec,
1338         &vax_aout_nbsd_vec,
1339         &vax_elf32_vec,
1340
1341         &visium_elf32_vec,
1342
1343         &wasm_vec,
1344         &wasm32_elf32_vec,
1345
1346 #ifdef BFD64
1347         &x86_64_coff_vec,
1348         &x86_64_elf32_vec,
1349         &x86_64_elf64_vec,
1350         &x86_64_elf64_cloudabi_vec,
1351         &x86_64_elf64_fbsd_vec,
1352         &x86_64_elf64_sol2_vec,
1353         &x86_64_mach_o_vec,
1354         &x86_64_pe_vec,
1355         &x86_64_pe_big_vec,
1356         &x86_64_pei_vec,
1357 #endif
1358
1359         &xgate_elf32_vec,
1360
1361         &xstormy16_elf32_vec,
1362
1363         &xtensa_elf32_be_vec,
1364         &xtensa_elf32_le_vec,
1365
1366         &z80_coff_vec,
1367         &z80_elf32_vec,
1368
1369         &z8k_coff_vec,
1370
1371 #ifdef BFD64
1372         &loongarch_elf32_vec,
1373         &loongarch_elf64_vec,
1374         &loongarch64_pei_vec,
1375 #endif
1376
1377 #endif /* not SELECT_VECS */
1378
1379 /* Always support S-records, for convenience.  */
1380         &srec_vec,
1381         &symbolsrec_vec,
1382 /* And verilog.  */
1383         &verilog_vec,
1384 /* And tekhex */
1385         &tekhex_vec,
1386 /* Likewise for binary output.  */
1387         &binary_vec,
1388 /* Likewise for ihex.  */
1389         &ihex_vec,
1390
1391 #if BFD_SUPPORTS_PLUGINS
1392         &plugin_vec,
1393 #endif
1394
1395 /* Add any required traditional-core-file-handler.  */
1396
1397 #ifdef AIX386_CORE
1398         &core_aix386_vec,
1399 #endif
1400 #if 0
1401         /* We don't include cisco_core_*_vec.  Although it has a magic number,
1402            the magic number isn't at the beginning of the file, and thus
1403            might spuriously match other kinds of files.  */
1404         &core_cisco_be_vec,
1405         &core_cisco_le_vec,
1406 #endif
1407 #ifdef HPPABSD_CORE
1408         &core_hppabsd_vec,
1409 #endif
1410 #ifdef HPUX_CORE
1411         &core_hpux_vec,
1412 #endif
1413 #ifdef IRIX_CORE
1414         &core_irix_vec,
1415 #endif
1416 #ifdef NETBSD_CORE
1417         &core_netbsd_vec,
1418 #endif
1419 #ifdef OSF_CORE
1420         &core_osf_vec,
1421 #endif
1422 #ifdef PTRACE_CORE
1423         &core_ptrace_vec,
1424 #endif
1425 #ifdef SCO5_CORE
1426         &core_sco5_vec,
1427 #endif
1428 #ifdef TRAD_CORE
1429         &core_trad_vec,
1430 #endif
1431
1432         NULL /* end of list marker */
1433 };
1434 const bfd_target *const *const bfd_target_vector = _bfd_target_vector;
1435
1436 /* bfd_default_vector[0] contains either the address of the default vector,
1437    if there is one, or zero if there isn't.  */
1438
1439 const bfd_target *bfd_default_vector[] = {
1440 #ifdef DEFAULT_VECTOR
1441         &DEFAULT_VECTOR,
1442 #endif
1443         NULL
1444 };
1445
1446 /* bfd_associated_vector[] contains the associated target vectors used
1447    to reduce the ambiguity in bfd_check_format_matches.  */
1448
1449 static const bfd_target *const _bfd_associated_vector[] = {
1450 #ifdef ASSOCIATED_VECS
1451         ASSOCIATED_VECS,
1452 #endif
1453         NULL
1454 };
1455 const bfd_target *const *const bfd_associated_vector = _bfd_associated_vector;
1456
1457 /* When there is an ambiguous match, bfd_check_format_matches puts the
1458    names of the matching targets in an array.  This variable is the maximum
1459    number of entries that the array could possibly need.  */
1460 const size_t _bfd_target_vector_entries = ARRAY_SIZE (_bfd_target_vector);
1461
1462 /* A place to stash a warning from _bfd_check_format.  */
1463 static const char *per_xvec_warn[ARRAY_SIZE (_bfd_target_vector) + 1];
1464 \f
1465 /* This array maps configuration triplets onto BFD vectors.  */
1466
1467 struct targmatch
1468 {
1469   /* The configuration triplet.  */
1470   const char *triplet;
1471   /* The BFD vector.  If this is NULL, then the vector is found by
1472      searching forward for the next structure with a non NULL vector
1473      field.  */
1474   const bfd_target *vector;
1475 };
1476
1477 /* targmatch.h is built by Makefile out of config.bfd.  */
1478 static const struct targmatch bfd_target_match[] = {
1479 #include "targmatch.h"
1480   { NULL, NULL }
1481 };
1482
1483 /*
1484 INTERNAL_FUNCTION
1485         _bfd_per_xvec_warn
1486
1487 SYNOPSIS
1488         const char **_bfd_per_xvec_warn (const bfd_target *);
1489
1490 DESCRIPTION
1491         Return a location for the given target xvec to use for
1492         warnings specific to that target.
1493 */
1494
1495 const char **
1496 _bfd_per_xvec_warn (const bfd_target *targ)
1497 {
1498   size_t idx;
1499
1500   for (idx = 0; idx < ARRAY_SIZE (_bfd_target_vector); idx++)
1501     if (_bfd_target_vector[idx] == targ)
1502       break;
1503   return per_xvec_warn + idx;
1504 }
1505
1506 /* Find a target vector, given a name or configuration triplet.  */
1507
1508 static const bfd_target *
1509 find_target (const char *name)
1510 {
1511   const bfd_target * const *target;
1512   const struct targmatch *match;
1513
1514   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1515     if (strcmp (name, (*target)->name) == 0)
1516       return *target;
1517
1518   /* If we couldn't match on the exact name, try matching on the
1519      configuration triplet.  FIXME: We should run the triplet through
1520      config.sub first, but that is hard.  */
1521   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1522     {
1523       if (fnmatch (match->triplet, name, 0) == 0)
1524         {
1525           while (match->vector == NULL)
1526             ++match;
1527           return match->vector;
1528         }
1529     }
1530
1531   bfd_set_error (bfd_error_invalid_target);
1532   return NULL;
1533 }
1534
1535 /*
1536 FUNCTION
1537         bfd_set_default_target
1538
1539 SYNOPSIS
1540         bool bfd_set_default_target (const char *name);
1541
1542 DESCRIPTION
1543         Set the default target vector to use when recognizing a BFD.
1544         This takes the name of the target, which may be a BFD target
1545         name or a configuration triplet.
1546 */
1547
1548 bool
1549 bfd_set_default_target (const char *name)
1550 {
1551   const bfd_target *target;
1552
1553   if (bfd_default_vector[0] != NULL
1554       && strcmp (name, bfd_default_vector[0]->name) == 0)
1555     return true;
1556
1557   target = find_target (name);
1558   if (target == NULL)
1559     return false;
1560
1561   bfd_default_vector[0] = target;
1562   return true;
1563 }
1564
1565 /*
1566 FUNCTION
1567         bfd_find_target
1568
1569 SYNOPSIS
1570         const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1571
1572 DESCRIPTION
1573         Return a pointer to the transfer vector for the object target
1574         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1575         choose the one in the environment variable <<GNUTARGET>>; if
1576         that is null or not defined, then choose the first entry in the
1577         target list.  Passing in the string "default" or setting the
1578         environment variable to "default" will cause the first entry in
1579         the target list to be returned, and "target_defaulted" will be
1580         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1581         <<bfd_check_format>> to loop over all the targets to find the
1582         one that matches the file being read.
1583 */
1584
1585 const bfd_target *
1586 bfd_find_target (const char *target_name, bfd *abfd)
1587 {
1588   const char *targname;
1589   const bfd_target *target;
1590
1591   if (target_name != NULL)
1592     targname = target_name;
1593   else
1594     targname = getenv ("GNUTARGET");
1595
1596   /* This is safe; the vector cannot be null.  */
1597   if (targname == NULL || strcmp (targname, "default") == 0)
1598     {
1599       if (bfd_default_vector[0] != NULL)
1600         target = bfd_default_vector[0];
1601       else
1602         target = bfd_target_vector[0];
1603       if (abfd)
1604         {
1605           abfd->xvec = target;
1606           abfd->target_defaulted = true;
1607         }
1608       return target;
1609     }
1610
1611   if (abfd)
1612     abfd->target_defaulted = false;
1613
1614   target = find_target (targname);
1615   if (target == NULL)
1616     return NULL;
1617
1618   if (abfd)
1619     abfd->xvec = target;
1620   return target;
1621 }
1622
1623 /* Helper function for bfd_get_target_info to determine the target's
1624    architecture.  This method handles bfd internal target names as
1625    tuples and triplets.  */
1626 static bool
1627 _bfd_find_arch_match (const char *tname, const char **arch,
1628                       const char **def_target_arch)
1629 {
1630   if (!arch)
1631     return false;
1632
1633   while (*arch != NULL)
1634     {
1635       const char *in_a = strstr (*arch, tname);
1636       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1637
1638       if (in_a && (in_a == *arch || in_a[-1] == ':')
1639           && end_ch == 0)
1640         {
1641           *def_target_arch = *arch;
1642           return true;
1643         }
1644       arch++;
1645     }
1646   return false;
1647 }
1648
1649 /*
1650 FUNCTION
1651         bfd_get_target_info
1652 SYNOPSIS
1653         const bfd_target *bfd_get_target_info (const char *target_name,
1654                                                bfd *abfd,
1655                                                bool *is_bigendian,
1656                                                int *underscoring,
1657                                                const char **def_target_arch);
1658 DESCRIPTION
1659         Return a pointer to the transfer vector for the object target
1660         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1661         choose the one in the environment variable <<GNUTARGET>>; if
1662         that is null or not defined, then choose the first entry in the
1663         target list.  Passing in the string "default" or setting the
1664         environment variable to "default" will cause the first entry in
1665         the target list to be returned, and "target_defaulted" will be
1666         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1667         <<bfd_check_format>> to loop over all the targets to find the
1668         one that matches the file being read.
1669         If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1670         endian mode. True for big-endian, FALSE for little-endian or for
1671         invalid target.
1672         If @var{underscoring} is not <<NULL>>, then set this value to target's
1673         underscoring mode. Zero for none-underscoring, -1 for invalid target,
1674         else the value of target vector's symbol underscoring.
1675         If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1676         string specified by the target_name.
1677 */
1678 const bfd_target *
1679 bfd_get_target_info (const char *target_name, bfd *abfd,
1680                      bool *is_bigendian,
1681                      int *underscoring, const char **def_target_arch)
1682 {
1683   const bfd_target *target_vec;
1684
1685   if (is_bigendian)
1686     *is_bigendian = false;
1687   if (underscoring)
1688     *underscoring = -1;
1689   if (def_target_arch)
1690     *def_target_arch = NULL;
1691   target_vec = bfd_find_target (target_name, abfd);
1692   if (! target_vec)
1693     return NULL;
1694   if (is_bigendian)
1695     *is_bigendian = target_vec->byteorder == BFD_ENDIAN_BIG;
1696   if (underscoring)
1697     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1698
1699   if (def_target_arch)
1700     {
1701       const char *tname = target_vec->name;
1702       const char **arches = bfd_arch_list ();
1703
1704       if (arches && tname)
1705         {
1706           char *hyp = strchr (tname, '-');
1707
1708           if (hyp != NULL)
1709             {
1710               tname = ++hyp;
1711
1712               /* Make sure we detect architecture names
1713                  for triplets like "pe-arm-wince-little".  */
1714               if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1715                 {
1716                   char new_tname[50];
1717
1718                   strcpy (new_tname, hyp);
1719                   while ((hyp = strrchr (new_tname, '-')) != NULL)
1720                     {
1721                       *hyp = 0;
1722                       if (_bfd_find_arch_match (new_tname, arches,
1723                                                 def_target_arch))
1724                         break;
1725                     }
1726                 }
1727             }
1728           else
1729             _bfd_find_arch_match (tname, arches, def_target_arch);
1730         }
1731
1732       free (arches);
1733     }
1734   return target_vec;
1735 }
1736
1737 /*
1738 FUNCTION
1739         bfd_target_list
1740
1741 SYNOPSIS
1742         const char ** bfd_target_list (void);
1743
1744 DESCRIPTION
1745         Return a freshly malloced NULL-terminated
1746         vector of the names of all the valid BFD targets. Do not
1747         modify the names.
1748
1749 */
1750
1751 const char **
1752 bfd_target_list (void)
1753 {
1754   int vec_length = 0;
1755   size_t amt;
1756   const bfd_target * const *target;
1757   const  char **name_list, **name_ptr;
1758
1759   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1760     vec_length++;
1761
1762   amt = (vec_length + 1) * sizeof (char **);
1763   name_ptr = name_list = (const  char **) bfd_malloc (amt);
1764
1765   if (name_list == NULL)
1766     return NULL;
1767
1768   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1769     if (target == &bfd_target_vector[0]
1770         || *target != bfd_target_vector[0])
1771       *name_ptr++ = (*target)->name;
1772
1773   *name_ptr = NULL;
1774   return name_list;
1775 }
1776
1777 /*
1778 FUNCTION
1779         bfd_iterate_over_targets
1780
1781 SYNOPSIS
1782         const bfd_target *bfd_iterate_over_targets
1783           (int (*func) (const bfd_target *, void *),
1784            void *data);
1785
1786 DESCRIPTION
1787         Call @var{func} for each target in the list of BFD target
1788         vectors, passing @var{data} to @var{func}.  Stop iterating if
1789         @var{func} returns a non-zero result, and return that target
1790         vector.  Return NULL if @var{func} always returns zero.
1791 */
1792
1793 const bfd_target *
1794 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
1795                           void *data)
1796 {
1797   const bfd_target *const *target;
1798
1799   for (target = bfd_target_vector; *target != NULL; ++target)
1800     if (func (*target, data))
1801       return *target;
1802
1803   return NULL;
1804 }
1805
1806 /*
1807 FUNCTION
1808         bfd_flavour_name
1809
1810 SYNOPSIS
1811         const char *bfd_flavour_name (enum bfd_flavour flavour);
1812
1813 DESCRIPTION
1814         Return the string form of @var{flavour}.
1815 */
1816
1817 const char *
1818 bfd_flavour_name (enum bfd_flavour flavour)
1819 {
1820   switch (flavour)
1821     {
1822     case bfd_target_unknown_flavour: return "unknown file format";
1823     case bfd_target_aout_flavour: return "a.out";
1824     case bfd_target_coff_flavour: return "COFF";
1825     case bfd_target_ecoff_flavour: return "ECOFF";
1826     case bfd_target_xcoff_flavour: return "XCOFF";
1827     case bfd_target_elf_flavour: return "ELF";
1828     case bfd_target_tekhex_flavour: return "Tekhex";
1829     case bfd_target_srec_flavour: return "Srec";
1830     case bfd_target_verilog_flavour: return "Verilog";
1831     case bfd_target_ihex_flavour: return "Ihex";
1832     case bfd_target_som_flavour: return "SOM";
1833     case bfd_target_os9k_flavour: return "OS9K";
1834     case bfd_target_versados_flavour: return "Versados";
1835     case bfd_target_msdos_flavour: return "MSDOS";
1836     case bfd_target_ovax_flavour: return "Ovax";
1837     case bfd_target_evax_flavour: return "Evax";
1838     case bfd_target_mmo_flavour: return "mmo";
1839     case bfd_target_mach_o_flavour: return "MACH_O";
1840     case bfd_target_pef_flavour: return "PEF";
1841     case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
1842     case bfd_target_sym_flavour: return "SYM";
1843     /* There is no "default" case here so that -Wswitch (part of -Wall)
1844        catches missing entries.  */
1845     }
1846
1847   abort ();
1848 }