bfd/targets.c

   1 /* Generic target-file-type support for the BFD library.
   2    Copyright (C) 1990-2019 Free Software Foundation, Inc.
   3    Written by Cygnus Support.
   4
   5    This file is part of BFD, the Binary File Descriptor library.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22 #include "sysdep.h"
  23 #include "bfd.h"
  24 #include "libbfd.h"
  25 #include "fnmatch.h"
  26
  27 /*
  28    It's okay to see some:
  29 #if 0
  30    directives in this source file, as targets.c uses them to exclude
  31    certain BFD vectors.  This comment is specially formatted to catch
  32    users who grep for ^#if 0, so please keep it this way!
  33 */
  34
  35 /*
  36 SECTION
  37         Targets
  38
  39 DESCRIPTION
  40         Each port of BFD to a different machine requires the creation
  41         of a target back end. All the back end provides to the root
  42         part of BFD is a structure containing pointers to functions
  43         which perform certain low level operations on files. BFD
  44         translates the applications's requests through a pointer into
  45         calls to the back end routines.
  46
  47         When a file is opened with <<bfd_openr>>, its format and
  48         target are unknown. BFD uses various mechanisms to determine
  49         how to interpret the file. The operations performed are:
  50
  51         o Create a BFD by calling the internal routine
  52         <<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
  53         target string supplied to <<bfd_openr>> and the new BFD pointer.
  54
  55         o If a null target string was provided to <<bfd_find_target>>,
  56         look up the environment variable <<GNUTARGET>> and use
  57         that as the target string.
  58
  59         o If the target string is still <<NULL>>, or the target string is
  60         <<default>>, then use the first item in the target vector
  61         as the target type, and set <<target_defaulted>> in the BFD to
  62         cause <<bfd_check_format>> to loop through all the targets.
  63         @xref{bfd_target}.  @xref{Formats}.
  64
  65         o Otherwise, inspect the elements in the target vector
  66         one by one, until a match on target name is found. When found,
  67         use it.
  68
  69         o Otherwise return the error <<bfd_error_invalid_target>> to
  70         <<bfd_openr>>.
  71
  72         o <<bfd_openr>> attempts to open the file using
  73         <<bfd_open_file>>, and returns the BFD.
  74
  75         Once the BFD has been opened and the target selected, the file
  76         format may be determined. This is done by calling
  77         <<bfd_check_format>> on the BFD with a suggested format.
  78         If <<target_defaulted>> has been set, each possible target
  79         type is tried to see if it recognizes the specified format.
  80         <<bfd_check_format>> returns <<TRUE>> when the caller guesses right.
  81 @menu
  82 @* bfd_target::
  83 @end menu
  84 */
  85
  86 /*
  87
  88 INODE
  89         bfd_target,  , Targets, Targets
  90 DOCDD
  91 SUBSECTION
  92         bfd_target
  93
  94 DESCRIPTION
  95         This structure contains everything that BFD knows about a
  96         target. It includes things like its byte order, name, and which
  97         routines to call to do various operations.
  98
  99         Every BFD points to a target structure with its <<xvec>>
 100         member.
 101
 102         The macros below are used to dispatch to functions through the
 103         <<bfd_target>> vector. They are used in a number of macros further
 104         down in @file{bfd.h}, and are also used when calling various
 105         routines by hand inside the BFD implementation.  The @var{arglist}
 106         argument must be parenthesized; it contains all the arguments
 107         to the called function.
 108
 109         They make the documentation (more) unpleasant to read, so if
 110         someone wants to fix this and not break the above, please do.
 111
 112 .#define BFD_SEND(bfd, message, arglist) \
 113 .  ((*((bfd)->xvec->message)) arglist)
 114 .
 115 .#ifdef DEBUG_BFD_SEND
 116 .#undef BFD_SEND
 117 .#define BFD_SEND(bfd, message, arglist) \
 118 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
 119 .    ((*((bfd)->xvec->message)) arglist) : \
 120 .    (bfd_assert (__FILE__,__LINE__), NULL))
 121 .#endif
 122
 123         For operations which index on the BFD format:
 124
 125 .#define BFD_SEND_FMT(bfd, message, arglist) \
 126 .  (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
 127 .
 128 .#ifdef DEBUG_BFD_SEND
 129 .#undef BFD_SEND_FMT
 130 .#define BFD_SEND_FMT(bfd, message, arglist) \
 131 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
 132 .   (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
 133 .   (bfd_assert (__FILE__,__LINE__), NULL))
 134 .#endif
 135 .
 136         This is the structure which defines the type of BFD this is.  The
 137         <<xvec>> member of the struct <<bfd>> itself points here.  Each
 138         module that implements access to a different target under BFD,
 139         defines one of these.
 140
 141         FIXME, these names should be rationalised with the names of
 142         the entry points which call them. Too bad we can't have one
 143         macro to define them both!
 144
 145 .enum bfd_flavour
 146 .{
 147 .  {* N.B. Update bfd_flavour_name if you change this.  *}
 148 .  bfd_target_unknown_flavour,
 149 .  bfd_target_aout_flavour,
 150 .  bfd_target_coff_flavour,
 151 .  bfd_target_ecoff_flavour,
 152 .  bfd_target_xcoff_flavour,
 153 .  bfd_target_elf_flavour,
 154 .  bfd_target_tekhex_flavour,
 155 .  bfd_target_srec_flavour,
 156 .  bfd_target_verilog_flavour,
 157 .  bfd_target_ihex_flavour,
 158 .  bfd_target_som_flavour,
 159 .  bfd_target_os9k_flavour,
 160 .  bfd_target_versados_flavour,
 161 .  bfd_target_msdos_flavour,
 162 .  bfd_target_ovax_flavour,
 163 .  bfd_target_evax_flavour,
 164 .  bfd_target_mmo_flavour,
 165 .  bfd_target_mach_o_flavour,
 166 .  bfd_target_pef_flavour,
 167 .  bfd_target_pef_xlib_flavour,
 168 .  bfd_target_sym_flavour
 169 .};
 170 .
 171 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
 172 .
 173 .{* Forward declaration.  *}
 174 .typedef struct bfd_link_info _bfd_link_info;
 175 .
 176 .{* Forward declaration.  *}
 177 .typedef struct flag_info flag_info;
 178 .
 179 .typedef struct bfd_target
 180 .{
 181 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
 182 .  const char *name;
 183 .
 184 . {* The "flavour" of a back end is a general indication about
 185 .    the contents of a file.  *}
 186 .  enum bfd_flavour flavour;
 187 .
 188 .  {* The order of bytes within the data area of a file.  *}
 189 .  enum bfd_endian byteorder;
 190 .
 191 . {* The order of bytes within the header parts of a file.  *}
 192 .  enum bfd_endian header_byteorder;
 193 .
 194 .  {* A mask of all the flags which an executable may have set -
 195 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
 196 .  flagword object_flags;
 197 .
 198 . {* A mask of all the flags which a section may have set - from
 199 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
 200 .  flagword section_flags;
 201 .
 202 . {* The character normally found at the front of a symbol.
 203 .    (if any), perhaps `_'.  *}
 204 .  char symbol_leading_char;
 205 .
 206 . {* The pad character for file names within an archive header.  *}
 207 .  char ar_pad_char;
 208 .
 209 .  {* The maximum number of characters in an archive header.  *}
 210 .  unsigned char ar_max_namelen;
 211 .
 212 .  {* How well this target matches, used to select between various
 213 .     possible targets when more than one target matches.  *}
 214 .  unsigned char match_priority;
 215 .
 216 .  {* Entries for byte swapping for data. These are different from the
 217 .     other entry points, since they don't take a BFD as the first argument.
 218 .     Certain other handlers could do the same.  *}
 219 .  bfd_uint64_t   (*bfd_getx64) (const void *);
 220 .  bfd_int64_t    (*bfd_getx_signed_64) (const void *);
 221 .  void           (*bfd_putx64) (bfd_uint64_t, void *);
 222 .  bfd_vma        (*bfd_getx32) (const void *);
 223 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
 224 .  void           (*bfd_putx32) (bfd_vma, void *);
 225 .  bfd_vma        (*bfd_getx16) (const void *);
 226 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
 227 .  void           (*bfd_putx16) (bfd_vma, void *);
 228 .
 229 .  {* Byte swapping for the headers.  *}
 230 .  bfd_uint64_t   (*bfd_h_getx64) (const void *);
 231 .  bfd_int64_t    (*bfd_h_getx_signed_64) (const void *);
 232 .  void           (*bfd_h_putx64) (bfd_uint64_t, void *);
 233 .  bfd_vma        (*bfd_h_getx32) (const void *);
 234 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
 235 .  void           (*bfd_h_putx32) (bfd_vma, void *);
 236 .  bfd_vma        (*bfd_h_getx16) (const void *);
 237 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
 238 .  void           (*bfd_h_putx16) (bfd_vma, void *);
 239 .
 240 .  {* Format dependent routines: these are vectors of entry points
 241 .     within the target vector structure, one for each format to check.  *}
 242 .
 243 .  {* Check the format of a file being read.  Return a <<bfd_target *>> or zero.  *}
 244 .  const struct bfd_target *
 245 .              (*_bfd_check_format[bfd_type_end]) (bfd *);
 246 .
 247 .  {* Set the format of a file being written.  *}
 248 .  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
 249 .
 250 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
 251 .  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
 252 .
 253 The general target vector.  These vectors are initialized using the
 254 BFD_JUMP_TABLE macros.
 255 .
 256 .  {* Generic entry points.  *}
 257 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
 258 .  NAME##_close_and_cleanup, \
 259 .  NAME##_bfd_free_cached_info, \
 260 .  NAME##_new_section_hook, \
 261 .  NAME##_get_section_contents, \
 262 .  NAME##_get_section_contents_in_window
 263 .
 264 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
 265 .  bfd_boolean (*_close_and_cleanup) (bfd *);
 266 .  {* Ask the BFD to free all cached information.  *}
 267 .  bfd_boolean (*_bfd_free_cached_info) (bfd *);
 268 .  {* Called when a new section is created.  *}
 269 .  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
 270 .  {* Read the contents of a section.  *}
 271 .  bfd_boolean (*_bfd_get_section_contents) (bfd *, sec_ptr, void *, file_ptr,
 272 .                                            bfd_size_type);
 273 .  bfd_boolean (*_bfd_get_section_contents_in_window) (bfd *, sec_ptr,
 274 .                                                      bfd_window *, file_ptr,
 275 .                                                      bfd_size_type);
 276 .
 277 .  {* Entry points to copy private data.  *}
 278 .#define BFD_JUMP_TABLE_COPY(NAME) \
 279 .  NAME##_bfd_copy_private_bfd_data, \
 280 .  NAME##_bfd_merge_private_bfd_data, \
 281 .  _bfd_generic_init_private_section_data, \
 282 .  NAME##_bfd_copy_private_section_data, \
 283 .  NAME##_bfd_copy_private_symbol_data, \
 284 .  NAME##_bfd_copy_private_header_data, \
 285 .  NAME##_bfd_set_private_flags, \
 286 .  NAME##_bfd_print_private_bfd_data
 287 .
 288 .  {* Called to copy BFD general private data from one object file
 289 .     to another.  *}
 290 .  bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
 291 .  {* Called to merge BFD general private data from one object file
 292 .     to a common output file when linking.  *}
 293 .  bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *);
 294 .  {* Called to initialize BFD private section data from one object file
 295 .     to another.  *}
 296 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
 297 .       BFD_SEND (obfd, _bfd_init_private_section_data, \
 298 .                 (ibfd, isec, obfd, osec, link_info))
 299 .  bfd_boolean (*_bfd_init_private_section_data) (bfd *, sec_ptr, bfd *,
 300 .                                                 sec_ptr,
 301 .                                                 struct bfd_link_info *);
 302 .  {* Called to copy BFD private section data from one object file
 303 .     to another.  *}
 304 .  bfd_boolean (*_bfd_copy_private_section_data) (bfd *, sec_ptr, bfd *,
 305 .                                                 sec_ptr);
 306 .  {* Called to copy BFD private symbol data from one symbol
 307 .     to another.  *}
 308 .  bfd_boolean (*_bfd_copy_private_symbol_data) (bfd *, asymbol *, bfd *,
 309 .                                                asymbol *);
 310 .  {* Called to copy BFD private header data from one object file
 311 .     to another.  *}
 312 .  bfd_boolean (*_bfd_copy_private_header_data) (bfd *, bfd *);
 313 .  {* Called to set private backend flags.  *}
 314 .  bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword);
 315 .
 316 .  {* Called to print private BFD data.  *}
 317 .  bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *);
 318 .
 319 .  {* Core file entry points.  *}
 320 .#define BFD_JUMP_TABLE_CORE(NAME) \
 321 .  NAME##_core_file_failing_command, \
 322 .  NAME##_core_file_failing_signal, \
 323 .  NAME##_core_file_matches_executable_p, \
 324 .  NAME##_core_file_pid
 325 .
 326 .  char *      (*_core_file_failing_command) (bfd *);
 327 .  int         (*_core_file_failing_signal) (bfd *);
 328 .  bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *);
 329 .  int         (*_core_file_pid) (bfd *);
 330 .
 331 .  {* Archive entry points.  *}
 332 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
 333 .  NAME##_slurp_armap, \
 334 .  NAME##_slurp_extended_name_table, \
 335 .  NAME##_construct_extended_name_table, \
 336 .  NAME##_truncate_arname, \
 337 .  NAME##_write_armap, \
 338 .  NAME##_read_ar_hdr, \
 339 .  NAME##_write_ar_hdr, \
 340 .  NAME##_openr_next_archived_file, \
 341 .  NAME##_get_elt_at_index, \
 342 .  NAME##_generic_stat_arch_elt, \
 343 .  NAME##_update_armap_timestamp
 344 .
 345 .  bfd_boolean (*_bfd_slurp_armap) (bfd *);
 346 .  bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *);
 347 .  bfd_boolean (*_bfd_construct_extended_name_table) (bfd *, char **,
 348 .                                                     bfd_size_type *,
 349 .                                                     const char **);
 350 .  void        (*_bfd_truncate_arname) (bfd *, const char *, char *);
 351 .  bfd_boolean (*write_armap) (bfd *, unsigned int, struct orl *,
 352 .                              unsigned int, int);
 353 .  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
 354 .  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
 355 .  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
 356 .#define bfd_get_elt_at_index(b,i) \
 357 .       BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
 358 .  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
 359 .  int         (*_bfd_stat_arch_elt) (bfd *, struct stat *);
 360 .  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
 361 .
 362 .  {* Entry points used for symbols.  *}
 363 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
 364 .  NAME##_get_symtab_upper_bound, \
 365 .  NAME##_canonicalize_symtab, \
 366 .  NAME##_make_empty_symbol, \
 367 .  NAME##_print_symbol, \
 368 .  NAME##_get_symbol_info, \
 369 .  NAME##_get_symbol_version_string, \
 370 .  NAME##_bfd_is_local_label_name, \
 371 .  NAME##_bfd_is_target_special_symbol, \
 372 .  NAME##_get_lineno, \
 373 .  NAME##_find_nearest_line, \
 374 .  NAME##_find_line, \
 375 .  NAME##_find_inliner_info, \
 376 .  NAME##_bfd_make_debug_symbol, \
 377 .  NAME##_read_minisymbols, \
 378 .  NAME##_minisymbol_to_symbol
 379 .
 380 .  long        (*_bfd_get_symtab_upper_bound) (bfd *);
 381 .  long        (*_bfd_canonicalize_symtab) (bfd *, struct bfd_symbol **);
 382 .  struct bfd_symbol *
 383 .              (*_bfd_make_empty_symbol) (bfd *);
 384 .  void        (*_bfd_print_symbol) (bfd *, void *, struct bfd_symbol *,
 385 .                                    bfd_print_symbol_type);
 386 .#define bfd_print_symbol(b,p,s,e) \
 387 .       BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
 388 .  void        (*_bfd_get_symbol_info) (bfd *, struct bfd_symbol *,
 389 .                                       symbol_info *);
 390 .#define bfd_get_symbol_info(b,p,e) \
 391 .       BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
 392 .  const char *(*_bfd_get_symbol_version_string) (bfd *, struct bfd_symbol *,
 393 .                                                 bfd_boolean *);
 394 .#define bfd_get_symbol_version_string(b,s,h) \
 395 .       BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h))
 396 .  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
 397 .  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
 398 .  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
 399 .  bfd_boolean (*_bfd_find_nearest_line) (bfd *, struct bfd_symbol **,
 400 .                                         struct bfd_section *, bfd_vma,
 401 .                                         const char **, const char **,
 402 .                                         unsigned int *, unsigned int *);
 403 .  bfd_boolean (*_bfd_find_line) (bfd *, struct bfd_symbol **,
 404 .                                 struct bfd_symbol *, const char **,
 405 .                                 unsigned int *);
 406 .  bfd_boolean (*_bfd_find_inliner_info)
 407 .    (bfd *, const char **, const char **, unsigned int *);
 408 . {* Back-door to allow format-aware applications to create debug symbols
 409 .    while using BFD for everything else.  Currently used by the assembler
 410 .    when creating COFF files.  *}
 411 .  asymbol *   (*_bfd_make_debug_symbol) (bfd *, void *, unsigned long size);
 412 .#define bfd_read_minisymbols(b, d, m, s) \
 413 .       BFD_SEND (b, _read_minisymbols, (b, d, m, s))
 414 .  long        (*_read_minisymbols) (bfd *, bfd_boolean, void **,
 415 .                                    unsigned int *);
 416 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
 417 .       BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
 418 .  asymbol *   (*_minisymbol_to_symbol) (bfd *, bfd_boolean, const void *,
 419 .                                        asymbol *);
 420 .
 421 .  {* Routines for relocs.  *}
 422 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
 423 .  NAME##_get_reloc_upper_bound, \
 424 .  NAME##_canonicalize_reloc, \
 425 .  NAME##_set_reloc, \
 426 .  NAME##_bfd_reloc_type_lookup, \
 427 .  NAME##_bfd_reloc_name_lookup
 428 .
 429 .  long        (*_get_reloc_upper_bound) (bfd *, sec_ptr);
 430 .  long        (*_bfd_canonicalize_reloc) (bfd *, sec_ptr, arelent **,
 431 .                                          struct bfd_symbol **);
 432 .  void        (*_bfd_set_reloc) (bfd *, sec_ptr, arelent **, unsigned int);
 433 .  {* See documentation on reloc types.  *}
 434 .  reloc_howto_type *
 435 .              (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
 436 .  reloc_howto_type *
 437 .              (*reloc_name_lookup) (bfd *, const char *);
 438 .
 439 .  {* Routines used when writing an object file.  *}
 440 .#define BFD_JUMP_TABLE_WRITE(NAME) \
 441 .  NAME##_set_arch_mach, \
 442 .  NAME##_set_section_contents
 443 .
 444 .  bfd_boolean (*_bfd_set_arch_mach) (bfd *, enum bfd_architecture,
 445 .                                     unsigned long);
 446 .  bfd_boolean (*_bfd_set_section_contents) (bfd *, sec_ptr, const void *,
 447 .                                            file_ptr, bfd_size_type);
 448 .
 449 .  {* Routines used by the linker.  *}
 450 .#define BFD_JUMP_TABLE_LINK(NAME) \
 451 .  NAME##_sizeof_headers, \
 452 .  NAME##_bfd_get_relocated_section_contents, \
 453 .  NAME##_bfd_relax_section, \
 454 .  NAME##_bfd_link_hash_table_create, \
 455 .  NAME##_bfd_link_add_symbols, \
 456 .  NAME##_bfd_link_just_syms, \
 457 .  NAME##_bfd_copy_link_hash_symbol_type, \
 458 .  NAME##_bfd_final_link, \
 459 .  NAME##_bfd_link_split_section, \
 460 .  NAME##_bfd_link_check_relocs, \
 461 .  NAME##_bfd_gc_sections, \
 462 .  NAME##_bfd_lookup_section_flags, \
 463 .  NAME##_bfd_merge_sections, \
 464 .  NAME##_bfd_is_group_section, \
 465 .  NAME##_bfd_group_name, \
 466 .  NAME##_bfd_discard_group, \
 467 .  NAME##_section_already_linked, \
 468 .  NAME##_bfd_define_common_symbol, \
 469 .  NAME##_bfd_link_hide_symbol, \
 470 .  NAME##_bfd_define_start_stop
 471 .
 472 .  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
 473 .  bfd_byte *  (*_bfd_get_relocated_section_contents) (bfd *,
 474 .                                                      struct bfd_link_info *,
 475 .                                                      struct bfd_link_order *,
 476 .                                                      bfd_byte *, bfd_boolean,
 477 .                                                      struct bfd_symbol **);
 478 .
 479 .  bfd_boolean (*_bfd_relax_section) (bfd *, struct bfd_section *,
 480 .                                     struct bfd_link_info *, bfd_boolean *);
 481 .
 482 .  {* Create a hash table for the linker.  Different backends store
 483 .     different information in this table.  *}
 484 .  struct bfd_link_hash_table *
 485 .              (*_bfd_link_hash_table_create) (bfd *);
 486 .
 487 .  {* Add symbols from this object file into the hash table.  *}
 488 .  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
 489 .
 490 .  {* Indicate that we are only retrieving symbol values from this section.  *}
 491 .  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
 492 .
 493 .  {* Copy the symbol type and other attributes for a linker script
 494 .     assignment of one symbol to another.  *}
 495 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
 496 .       BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
 497 .  void        (*_bfd_copy_link_hash_symbol_type) (bfd *,
 498 .                                                  struct bfd_link_hash_entry *,
 499 .                                                  struct bfd_link_hash_entry *);
 500 .
 501 .  {* Do a link based on the link_order structures attached to each
 502 .     section of the BFD.  *}
 503 .  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
 504 .
 505 .  {* Should this section be split up into smaller pieces during linking.  *}
 506 .  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
 507 .
 508 .  {* Check the relocations in the bfd for validity.  *}
 509 .  bfd_boolean (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
 510 .
 511 .  {* Remove sections that are not referenced from the output.  *}
 512 .  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
 513 .
 514 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
 515 .  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
 516 .                                            struct flag_info *, asection *);
 517 .
 518 .  {* Attempt to merge SEC_MERGE sections.  *}
 519 .  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
 520 .
 521 .  {* Is this section a member of a group?  *}
 522 .  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
 523 .
 524 .  {* The group name, if section is a member of a group.  *}
 525 .  const char *(*_bfd_group_name) (bfd *, const struct bfd_section *);
 526 .
 527 .  {* Discard members of a group.  *}
 528 .  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
 529 .
 530 .  {* Check if SEC has been already linked during a reloceatable or
 531 .     final link.  *}
 532 .  bfd_boolean (*_section_already_linked) (bfd *, asection *,
 533 .                                          struct bfd_link_info *);
 534 .
 535 .  {* Define a common symbol.  *}
 536 .  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
 537 .                                            struct bfd_link_hash_entry *);
 538 .
 539 .  {* Hide a symbol.  *}
 540 .  void (*_bfd_link_hide_symbol) (bfd *, struct bfd_link_info *,
 541 .                                 struct bfd_link_hash_entry *);
 542 .
 543 .  {* Define a __start, __stop, .startof. or .sizeof. symbol.  *}
 544 .  struct bfd_link_hash_entry *
 545 .              (*_bfd_define_start_stop) (struct bfd_link_info *, const char *,
 546 .                                         asection *);
 547 .
 548 .  {* Routines to handle dynamic symbols and relocs.  *}
 549 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
 550 .  NAME##_get_dynamic_symtab_upper_bound, \
 551 .  NAME##_canonicalize_dynamic_symtab, \
 552 .  NAME##_get_synthetic_symtab, \
 553 .  NAME##_get_dynamic_reloc_upper_bound, \
 554 .  NAME##_canonicalize_dynamic_reloc
 555 .
 556 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
 557 .  long        (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
 558 .  {* Read in the dynamic symbols.  *}
 559 .  long        (*_bfd_canonicalize_dynamic_symtab) (bfd *, struct bfd_symbol **);
 560 .  {* Create synthetized symbols.  *}
 561 .  long        (*_bfd_get_synthetic_symtab) (bfd *, long, struct bfd_symbol **,
 562 .                                            long, struct bfd_symbol **,
 563 .                                            struct bfd_symbol **);
 564 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
 565 .  long        (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
 566 .  {* Read in the dynamic relocs.  *}
 567 .  long        (*_bfd_canonicalize_dynamic_reloc) (bfd *, arelent **,
 568 .                                                  struct bfd_symbol **);
 569 .
 570
 571 A pointer to an alternative bfd_target in case the current one is not
 572 satisfactory.  This can happen when the target cpu supports both big
 573 and little endian code, and target chosen by the linker has the wrong
 574 endianness.  The function open_output() in ld/ldlang.c uses this field
 575 to find an alternative output format that is suitable.
 576
 577 .  {* Opposite endian version of this target.  *}
 578 .  const struct bfd_target *alternative_target;
 579 .
 580
 581 .  {* Data for use by back-end routines, which isn't
 582 .     generic enough to belong in this structure.  *}
 583 .  const void *backend_data;
 584 .
 585 .} bfd_target;
 586 .
 587 .static inline const char *
 588 .bfd_get_target (const bfd *abfd)
 589 .{
 590 .  return abfd->xvec->name;
 591 .}
 592 .
 593 .static inline enum bfd_flavour
 594 .bfd_get_flavour (const bfd *abfd)
 595 .{
 596 .  return abfd->xvec->flavour;
 597 .}
 598 .
 599 .static inline flagword
 600 .bfd_applicable_file_flags (const bfd *abfd)
 601 .{
 602 .  return abfd->xvec->object_flags;
 603 .}
 604 .
 605 .static inline bfd_boolean
 606 .bfd_family_coff (const bfd *abfd)
 607 .{
 608 .  return (bfd_get_flavour (abfd) == bfd_target_coff_flavour
 609 .          || bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
 610 .}
 611 .
 612 .static inline bfd_boolean
 613 .bfd_big_endian (const bfd *abfd)
 614 .{
 615 .  return abfd->xvec->byteorder == BFD_ENDIAN_BIG;
 616 .}
 617 .static inline bfd_boolean
 618 .bfd_little_endian (const bfd *abfd)
 619 .{
 620 .  return abfd->xvec->byteorder == BFD_ENDIAN_LITTLE;
 621 .}
 622 .
 623 .static inline bfd_boolean
 624 .bfd_header_big_endian (const bfd *abfd)
 625 .{
 626 .  return abfd->xvec->header_byteorder == BFD_ENDIAN_BIG;
 627 .}
 628 .
 629 .static inline bfd_boolean
 630 .bfd_header_little_endian (const bfd *abfd)
 631 .{
 632 .  return abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE;
 633 .}
 634 .
 635 .static inline flagword
 636 .bfd_applicable_section_flags (const bfd *abfd)
 637 .{
 638 .  return abfd->xvec->section_flags;
 639 .}
 640 .
 641 .static inline char
 642 .bfd_get_symbol_leading_char (const bfd *abfd)
 643 .{
 644 .  return abfd->xvec->symbol_leading_char;
 645 .}
 646 .
 647 */
 648
 649 /* All known xvecs (even those that don't compile on all systems).
 650    Alphabetized for easy reference.
 651    They are listed a second time below, since
 652    we can't intermix extern's and initializers.  */
 653 extern const bfd_target aarch64_elf32_be_vec;
 654 extern const bfd_target aarch64_elf32_le_vec;
 655 extern const bfd_target aarch64_elf64_be_vec;
 656 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
 657 extern const bfd_target aarch64_elf64_le_vec;
 658 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
 659 extern const bfd_target aarch64_mach_o_vec;
 660 extern const bfd_target alpha_ecoff_le_vec;
 661 extern const bfd_target alpha_elf64_vec;
 662 extern const bfd_target alpha_elf64_fbsd_vec;
 663 extern const bfd_target alpha_vms_vec;
 664 extern const bfd_target alpha_vms_lib_txt_vec;
 665 extern const bfd_target am33_elf32_linux_vec;
 666 extern const bfd_target aout_vec;
 667 extern const bfd_target arc_elf32_be_vec;
 668 extern const bfd_target arc_elf32_le_vec;
 669 extern const bfd_target arm_elf32_be_vec;
 670 extern const bfd_target arm_elf32_le_vec;
 671 extern const bfd_target arm_elf32_fdpic_be_vec;
 672 extern const bfd_target arm_elf32_fdpic_le_vec;
 673 extern const bfd_target arm_elf32_nacl_be_vec;
 674 extern const bfd_target arm_elf32_nacl_le_vec;
 675 extern const bfd_target arm_elf32_symbian_be_vec;
 676 extern const bfd_target arm_elf32_symbian_le_vec;
 677 extern const bfd_target arm_elf32_vxworks_be_vec;
 678 extern const bfd_target arm_elf32_vxworks_le_vec;
 679 extern const bfd_target arm_mach_o_vec;
 680 extern const bfd_target arm_pe_be_vec;
 681 extern const bfd_target arm_pe_le_vec;
 682 extern const bfd_target arm_pe_wince_be_vec;
 683 extern const bfd_target arm_pe_wince_le_vec;
 684 extern const bfd_target arm_pei_be_vec;
 685 extern const bfd_target arm_pei_le_vec;
 686 extern const bfd_target arm_pei_wince_be_vec;
 687 extern const bfd_target arm_pei_wince_le_vec;
 688 extern const bfd_target avr_elf32_vec;
 689 extern const bfd_target bfin_elf32_vec;
 690 extern const bfd_target bfin_elf32_fdpic_vec;
 691 extern const bfd_target cr16_elf32_vec;
 692 extern const bfd_target cr16c_elf32_vec;
 693 extern const bfd_target cris_aout_vec;
 694 extern const bfd_target cris_elf32_vec;
 695 extern const bfd_target cris_elf32_us_vec;
 696 extern const bfd_target crx_elf32_vec;
 697 extern const bfd_target csky_elf32_be_vec;
 698 extern const bfd_target csky_elf32_le_vec;
 699 extern const bfd_target d10v_elf32_vec;
 700 extern const bfd_target d30v_elf32_vec;
 701 extern const bfd_target dlx_elf32_be_vec;
 702 extern const bfd_target elf32_be_vec;
 703 extern const bfd_target elf32_le_vec;
 704 extern const bfd_target elf64_be_vec;
 705 extern const bfd_target elf64_le_vec;
 706 extern const bfd_target bpf_elf64_le_vec;
 707 extern const bfd_target bpf_elf64_be_vec;
 708 extern const bfd_target epiphany_elf32_vec;
 709 extern const bfd_target fr30_elf32_vec;
 710 extern const bfd_target frv_elf32_vec;
 711 extern const bfd_target frv_elf32_fdpic_vec;
 712 extern const bfd_target h8300_elf32_vec;
 713 extern const bfd_target h8300_elf32_linux_vec;
 714 extern const bfd_target hppa_elf32_vec;
 715 extern const bfd_target hppa_elf32_linux_vec;
 716 extern const bfd_target hppa_elf32_nbsd_vec;
 717 extern const bfd_target hppa_elf64_vec;
 718 extern const bfd_target hppa_elf64_linux_vec;
 719 extern const bfd_target hppa_som_vec;
 720 extern const bfd_target i386_aout_vec;
 721 extern const bfd_target i386_aout_bsd_vec;
 722 extern const bfd_target i386_aout_lynx_vec;
 723 extern const bfd_target i386_coff_vec;
 724 extern const bfd_target i386_coff_go32_vec;
 725 extern const bfd_target i386_coff_go32stubbed_vec;
 726 extern const bfd_target i386_coff_lynx_vec;
 727 extern const bfd_target i386_elf32_vec;
 728 extern const bfd_target i386_elf32_fbsd_vec;
 729 extern const bfd_target i386_elf32_nacl_vec;
 730 extern const bfd_target i386_elf32_sol2_vec;
 731 extern const bfd_target i386_elf32_vxworks_vec;
 732 extern const bfd_target i386_mach_o_vec;
 733 extern const bfd_target i386_msdos_vec;
 734 extern const bfd_target i386_pe_vec;
 735 extern const bfd_target i386_pei_vec;
 736 extern const bfd_target iamcu_elf32_vec;
 737 extern const bfd_target ia64_elf32_be_vec;
 738 extern const bfd_target ia64_elf32_hpux_be_vec;
 739 extern const bfd_target ia64_elf64_be_vec;
 740 extern const bfd_target ia64_elf64_le_vec;
 741 extern const bfd_target ia64_elf64_hpux_be_vec;
 742 extern const bfd_target ia64_elf64_vms_vec;
 743 extern const bfd_target ia64_pei_vec;
 744 extern const bfd_target ip2k_elf32_vec;
 745 extern const bfd_target iq2000_elf32_vec;
 746 extern const bfd_target k1om_elf64_vec;
 747 extern const bfd_target k1om_elf64_fbsd_vec;
 748 extern const bfd_target l1om_elf64_vec;
 749 extern const bfd_target l1om_elf64_fbsd_vec;
 750 extern const bfd_target lm32_elf32_vec;
 751 extern const bfd_target lm32_elf32_fdpic_vec;
 752 extern const bfd_target m32c_elf32_vec;
 753 extern const bfd_target m32r_elf32_vec;
 754 extern const bfd_target m32r_elf32_le_vec;
 755 extern const bfd_target m32r_elf32_linux_vec;
 756 extern const bfd_target m32r_elf32_linux_le_vec;
 757 extern const bfd_target m68hc11_elf32_vec;
 758 extern const bfd_target m68hc12_elf32_vec;
 759 extern const bfd_target m68k_elf32_vec;
 760 extern const bfd_target s12z_elf32_vec;
 761 extern const bfd_target mach_o_be_vec;
 762 extern const bfd_target mach_o_le_vec;
 763 extern const bfd_target mach_o_fat_vec;
 764 extern const bfd_target mcore_elf32_be_vec;
 765 extern const bfd_target mcore_elf32_le_vec;
 766 extern const bfd_target mcore_pe_be_vec;
 767 extern const bfd_target mcore_pe_le_vec;
 768 extern const bfd_target mcore_pei_be_vec;
 769 extern const bfd_target mcore_pei_le_vec;
 770 extern const bfd_target mep_elf32_vec;
 771 extern const bfd_target mep_elf32_le_vec;
 772 extern const bfd_target metag_elf32_vec;
 773 extern const bfd_target microblaze_elf32_vec;
 774 extern const bfd_target microblaze_elf32_le_vec;
 775 extern const bfd_target mips_ecoff_be_vec;
 776 extern const bfd_target mips_ecoff_le_vec;
 777 extern const bfd_target mips_ecoff_bele_vec;
 778 extern const bfd_target mips_elf32_be_vec;
 779 extern const bfd_target mips_elf32_le_vec;
 780 extern const bfd_target mips_elf32_n_be_vec;
 781 extern const bfd_target mips_elf32_n_le_vec;
 782 extern const bfd_target mips_elf32_ntrad_be_vec;
 783 extern const bfd_target mips_elf32_ntrad_le_vec;
 784 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
 785 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
 786 extern const bfd_target mips_elf32_trad_be_vec;
 787 extern const bfd_target mips_elf32_trad_le_vec;
 788 extern const bfd_target mips_elf32_tradfbsd_be_vec;
 789 extern const bfd_target mips_elf32_tradfbsd_le_vec;
 790 extern const bfd_target mips_elf32_vxworks_be_vec;
 791 extern const bfd_target mips_elf32_vxworks_le_vec;
 792 extern const bfd_target mips_elf64_be_vec;
 793 extern const bfd_target mips_elf64_le_vec;
 794 extern const bfd_target mips_elf64_trad_be_vec;
 795 extern const bfd_target mips_elf64_trad_le_vec;
 796 extern const bfd_target mips_elf64_tradfbsd_be_vec;
 797 extern const bfd_target mips_elf64_tradfbsd_le_vec;
 798 extern const bfd_target mmix_elf64_vec;
 799 extern const bfd_target mmix_mmo_vec;
 800 extern const bfd_target mn10200_elf32_vec;
 801 extern const bfd_target mn10300_elf32_vec;
 802 extern const bfd_target moxie_elf32_be_vec;
 803 extern const bfd_target moxie_elf32_le_vec;
 804 extern const bfd_target msp430_elf32_vec;
 805 extern const bfd_target msp430_elf32_ti_vec;
 806 extern const bfd_target mt_elf32_vec;
 807 extern const bfd_target nds32_elf32_be_vec;
 808 extern const bfd_target nds32_elf32_le_vec;
 809 extern const bfd_target nds32_elf32_linux_be_vec;
 810 extern const bfd_target nds32_elf32_linux_le_vec;
 811 extern const bfd_target nfp_elf64_vec;
 812 extern const bfd_target nios2_elf32_be_vec;
 813 extern const bfd_target nios2_elf32_le_vec;
 814 extern const bfd_target ns32k_aout_pc532mach_vec;
 815 extern const bfd_target ns32k_aout_pc532nbsd_vec;
 816 extern const bfd_target or1k_elf32_vec;
 817 extern const bfd_target pdp11_aout_vec;
 818 extern const bfd_target pef_vec;
 819 extern const bfd_target pef_xlib_vec;
 820 extern const bfd_target pj_elf32_vec;
 821 extern const bfd_target pj_elf32_le_vec;
 822 extern const bfd_target plugin_vec;
 823 extern const bfd_target powerpc_boot_vec;
 824 extern const bfd_target powerpc_elf32_vec;
 825 extern const bfd_target powerpc_elf32_le_vec;
 826 extern const bfd_target powerpc_elf32_fbsd_vec;
 827 extern const bfd_target powerpc_elf32_vxworks_vec;
 828 extern const bfd_target powerpc_elf64_vec;
 829 extern const bfd_target powerpc_elf64_le_vec;
 830 extern const bfd_target powerpc_elf64_fbsd_vec;
 831 extern const bfd_target powerpc_pe_vec;
 832 extern const bfd_target powerpc_pe_le_vec;
 833 extern const bfd_target powerpc_pei_vec;
 834 extern const bfd_target powerpc_pei_le_vec;
 835 extern const bfd_target powerpc_xcoff_vec;
 836 extern const bfd_target pru_elf32_vec;
 837 extern const bfd_target riscv_elf32_vec;
 838 extern const bfd_target riscv_elf64_vec;
 839 extern const bfd_target rl78_elf32_vec;
 840 extern const bfd_target rs6000_xcoff64_vec;
 841 extern const bfd_target rs6000_xcoff64_aix_vec;
 842 extern const bfd_target rs6000_xcoff_vec;
 843 extern const bfd_target rx_elf32_be_vec;
 844 extern const bfd_target rx_elf32_be_ns_vec;
 845 extern const bfd_target rx_elf32_le_vec;
 846 extern const bfd_target rx_elf32_linux_le_vec;
 847 extern const bfd_target s390_elf32_vec;
 848 extern const bfd_target s390_elf64_vec;
 849 extern const bfd_target score_elf32_be_vec;
 850 extern const bfd_target score_elf32_le_vec;
 851 extern const bfd_target sh_coff_vec;
 852 extern const bfd_target sh_coff_le_vec;
 853 extern const bfd_target sh_coff_small_vec;
 854 extern const bfd_target sh_coff_small_le_vec;
 855 extern const bfd_target sh_elf32_vec;
 856 extern const bfd_target sh_elf32_le_vec;
 857 extern const bfd_target sh_elf32_fdpic_be_vec;
 858 extern const bfd_target sh_elf32_fdpic_le_vec;
 859 extern const bfd_target sh_elf32_linux_vec;
 860 extern const bfd_target sh_elf32_linux_be_vec;
 861 extern const bfd_target sh_elf32_nbsd_vec;
 862 extern const bfd_target sh_elf32_nbsd_le_vec;
 863 extern const bfd_target sh_elf32_vxworks_vec;
 864 extern const bfd_target sh_elf32_vxworks_le_vec;
 865 extern const bfd_target sh_pe_le_vec;
 866 extern const bfd_target sh_pei_le_vec;
 867 extern const bfd_target sparc_elf32_vec;
 868 extern const bfd_target sparc_elf32_sol2_vec;
 869 extern const bfd_target sparc_elf32_vxworks_vec;
 870 extern const bfd_target sparc_elf64_vec;
 871 extern const bfd_target sparc_elf64_fbsd_vec;
 872 extern const bfd_target sparc_elf64_sol2_vec;
 873 extern const bfd_target spu_elf32_vec;
 874 extern const bfd_target sym_vec;
 875 extern const bfd_target tic30_aout_vec;
 876 extern const bfd_target tic30_coff_vec;
 877 extern const bfd_target tic4x_coff0_vec;
 878 extern const bfd_target tic4x_coff0_beh_vec;
 879 extern const bfd_target tic4x_coff1_vec;
 880 extern const bfd_target tic4x_coff1_beh_vec;
 881 extern const bfd_target tic4x_coff2_vec;
 882 extern const bfd_target tic4x_coff2_beh_vec;
 883 extern const bfd_target tic54x_coff0_vec;
 884 extern const bfd_target tic54x_coff0_beh_vec;
 885 extern const bfd_target tic54x_coff1_vec;
 886 extern const bfd_target tic54x_coff1_beh_vec;
 887 extern const bfd_target tic54x_coff2_vec;
 888 extern const bfd_target tic54x_coff2_beh_vec;
 889 extern const bfd_target tic6x_elf32_be_vec;
 890 extern const bfd_target tic6x_elf32_le_vec;
 891 extern const bfd_target tic6x_elf32_c6000_be_vec;
 892 extern const bfd_target tic6x_elf32_c6000_le_vec;
 893 extern const bfd_target tic6x_elf32_linux_be_vec;
 894 extern const bfd_target tic6x_elf32_linux_le_vec;
 895 extern const bfd_target tic80_coff_vec;
 896 extern const bfd_target tilegx_elf32_be_vec;
 897 extern const bfd_target tilegx_elf32_le_vec;
 898 extern const bfd_target tilegx_elf64_be_vec;
 899 extern const bfd_target tilegx_elf64_le_vec;
 900 extern const bfd_target tilepro_elf32_vec;
 901 extern const bfd_target v800_elf32_vec;
 902 extern const bfd_target v850_elf32_vec;
 903 extern const bfd_target ft32_elf32_vec;
 904 extern const bfd_target vax_aout_1knbsd_vec;
 905 extern const bfd_target vax_aout_nbsd_vec;
 906 extern const bfd_target vax_elf32_vec;
 907 extern const bfd_target visium_elf32_vec;
 908 extern const bfd_target wasm_vec;
 909 extern const bfd_target wasm32_elf32_vec;
 910 extern const bfd_target x86_64_coff_vec;
 911 extern const bfd_target x86_64_elf32_vec;
 912 extern const bfd_target x86_64_elf32_nacl_vec;
 913 extern const bfd_target x86_64_elf64_vec;
 914 extern const bfd_target x86_64_elf64_cloudabi_vec;
 915 extern const bfd_target x86_64_elf64_fbsd_vec;
 916 extern const bfd_target x86_64_elf64_nacl_vec;
 917 extern const bfd_target x86_64_elf64_sol2_vec;
 918 extern const bfd_target x86_64_mach_o_vec;
 919 extern const bfd_target x86_64_pe_vec;
 920 extern const bfd_target x86_64_pe_be_vec;
 921 extern const bfd_target x86_64_pei_vec;
 922 extern const bfd_target xc16x_elf32_vec;
 923 extern const bfd_target xgate_elf32_vec;
 924 extern const bfd_target xstormy16_elf32_vec;
 925 extern const bfd_target xtensa_elf32_be_vec;
 926 extern const bfd_target xtensa_elf32_le_vec;
 927 extern const bfd_target z80_coff_vec;
 928 extern const bfd_target z8k_coff_vec;
 929
 930 /* These are always included.  */
 931 extern const bfd_target srec_vec;
 932 extern const bfd_target symbolsrec_vec;
 933 extern const bfd_target verilog_vec;
 934 extern const bfd_target tekhex_vec;
 935 extern const bfd_target binary_vec;
 936 extern const bfd_target ihex_vec;
 937
 938 /* All of the xvecs for core files.  */
 939 extern const bfd_target core_aix386_vec;
 940 extern const bfd_target core_cisco_be_vec;
 941 extern const bfd_target core_cisco_le_vec;
 942 extern const bfd_target core_hppabsd_vec;
 943 extern const bfd_target core_hpux_vec;
 944 extern const bfd_target core_irix_vec;
 945 extern const bfd_target core_netbsd_vec;
 946 extern const bfd_target core_osf_vec;
 947 extern const bfd_target core_ptrace_vec;
 948 extern const bfd_target core_sco5_vec;
 949 extern const bfd_target core_trad_vec;
 950
 951 static const bfd_target * const _bfd_target_vector[] =
 952 {
 953 #ifdef SELECT_VECS
 954
 955         SELECT_VECS,
 956
 957 #else /* not SELECT_VECS */
 958
 959 #ifdef DEFAULT_VECTOR
 960         &DEFAULT_VECTOR,
 961 #endif
 962         /* This list is alphabetized to make it easy to compare
 963            with other vector lists -- the decls above and
 964            the case statement in configure.ac.
 965            Try to keep it in order when adding new targets, and
 966            use a name of the form <cpu>_<format>_<other>_<endian>_vec.
 967            Note that sorting is done as if _<endian>_vec wasn't present.
 968            Vectors that don't compile on all systems, or aren't finished,
 969            should have an entry here with #if 0 around it, to show that
 970            it wasn't omitted by mistake.  */
 971 #ifdef BFD64
 972         &aarch64_elf32_be_vec,
 973         &aarch64_elf32_le_vec,
 974         &aarch64_elf64_be_vec,
 975         &aarch64_elf64_be_cloudabi_vec,
 976         &aarch64_elf64_le_vec,
 977         &aarch64_elf64_le_cloudabi_vec,
 978         &aarch64_mach_o_vec,
 979 #endif
 980
 981 #ifdef BFD64
 982         &alpha_ecoff_le_vec,
 983         &alpha_elf64_vec,
 984         &alpha_elf64_fbsd_vec,
 985         &alpha_vms_vec,
 986 #endif
 987         &alpha_vms_lib_txt_vec,
 988
 989         &am33_elf32_linux_vec,
 990
 991 #if 0
 992         /* Since a.out files lack decent magic numbers, no way to recognize
 993            which kind of a.out file it is.  */
 994         &aout_vec,
 995 #endif
 996
 997         &arc_elf32_be_vec,
 998         &arc_elf32_le_vec,
 999
1000         &arm_elf32_be_vec,
1001         &arm_elf32_le_vec,
1002         &arm_elf32_fdpic_be_vec,
1003         &arm_elf32_fdpic_le_vec,
1004         &arm_elf32_symbian_be_vec,
1005         &arm_elf32_symbian_le_vec,
1006         &arm_elf32_vxworks_be_vec,
1007         &arm_elf32_vxworks_le_vec,
1008         &arm_mach_o_vec,
1009         &arm_pe_be_vec,
1010         &arm_pe_le_vec,
1011         &arm_pe_wince_be_vec,
1012         &arm_pe_wince_le_vec,
1013         &arm_pei_be_vec,
1014         &arm_pei_le_vec,
1015         &arm_pei_wince_be_vec,
1016         &arm_pei_wince_le_vec,
1017
1018         &avr_elf32_vec,
1019
1020         &bfin_elf32_vec,
1021         &bfin_elf32_fdpic_vec,
1022
1023         &cr16_elf32_vec,
1024         &cr16c_elf32_vec,
1025
1026         &cris_aout_vec,
1027         &cris_elf32_vec,
1028         &cris_elf32_us_vec,
1029
1030         &crx_elf32_vec,
1031
1032         &csky_elf32_be_vec,
1033         &csky_elf32_le_vec,
1034
1035         &d10v_elf32_vec,
1036         &d30v_elf32_vec,
1037
1038         &dlx_elf32_be_vec,
1039
1040         /* This, and other vectors, may not be used in any *.mt configuration.
1041            But that does not mean they are unnecessary.  If configured with
1042            --enable-targets=all, objdump or gdb should be able to examine
1043            the file even if we don't recognize the machine type.  */
1044         &elf32_be_vec,
1045         &elf32_le_vec,
1046 #ifdef BFD64
1047         &elf64_be_vec,
1048         &elf64_le_vec,
1049 #endif
1050
1051         &epiphany_elf32_vec,
1052
1053         &fr30_elf32_vec,
1054
1055         &frv_elf32_vec,
1056         &frv_elf32_fdpic_vec,
1057
1058         &h8300_elf32_vec,
1059         &h8300_elf32_linux_vec,
1060
1061         &hppa_elf32_vec,
1062         &hppa_elf32_linux_vec,
1063         &hppa_elf32_nbsd_vec,
1064 #ifdef BFD64
1065         &hppa_elf64_vec,
1066         &hppa_elf64_linux_vec,
1067 #endif
1068         &hppa_som_vec,
1069
1070         &i386_aout_vec,
1071         &i386_aout_bsd_vec,
1072         &i386_aout_lynx_vec,
1073         &i386_coff_vec,
1074         &i386_coff_go32_vec,
1075         &i386_coff_go32stubbed_vec,
1076         &i386_coff_lynx_vec,
1077         &i386_elf32_vec,
1078         &i386_elf32_fbsd_vec,
1079         &i386_elf32_nacl_vec,
1080         &i386_elf32_sol2_vec,
1081         &i386_elf32_vxworks_vec,
1082         &i386_mach_o_vec,
1083         &i386_msdos_vec,
1084         &i386_pe_vec,
1085         &i386_pei_vec,
1086
1087         &iamcu_elf32_vec,
1088
1089 #ifdef BFD64
1090         &bpf_elf64_be_vec,
1091         &bpf_elf64_le_vec,
1092 #endif
1093
1094 #ifdef BFD64
1095 #if 0
1096         &ia64_elf32_be_vec,
1097 #endif
1098         &ia64_elf32_hpux_be_vec,
1099         &ia64_elf64_be_vec,
1100         &ia64_elf64_le_vec,
1101         &ia64_elf64_hpux_be_vec,
1102         &ia64_elf64_vms_vec,
1103         &ia64_pei_vec,
1104 #endif
1105
1106         &ip2k_elf32_vec,
1107         &iq2000_elf32_vec,
1108
1109 #ifdef BFD64
1110         &k1om_elf64_vec,
1111         &k1om_elf64_fbsd_vec,
1112         &l1om_elf64_vec,
1113         &l1om_elf64_fbsd_vec,
1114 #endif
1115
1116         &lm32_elf32_vec,
1117
1118         &m32c_elf32_vec,
1119
1120         &m32r_elf32_vec,
1121         &m32r_elf32_le_vec,
1122         &m32r_elf32_linux_vec,
1123         &m32r_elf32_linux_le_vec,
1124
1125         &m68hc11_elf32_vec,
1126         &m68hc12_elf32_vec,
1127
1128         &m68k_elf32_vec,
1129
1130         &s12z_elf32_vec,
1131
1132         &mach_o_be_vec,
1133         &mach_o_le_vec,
1134         &mach_o_fat_vec,
1135
1136         &mcore_elf32_be_vec,
1137         &mcore_elf32_le_vec,
1138         &mcore_pe_be_vec,
1139         &mcore_pe_le_vec,
1140         &mcore_pei_be_vec,
1141         &mcore_pei_le_vec,
1142
1143         &mep_elf32_vec,
1144
1145         &metag_elf32_vec,
1146
1147         &microblaze_elf32_vec,
1148
1149         &mips_ecoff_be_vec,
1150         &mips_ecoff_le_vec,
1151         &mips_ecoff_bele_vec,
1152 #ifdef BFD64
1153         &mips_elf32_be_vec,
1154         &mips_elf32_le_vec,
1155         &mips_elf32_n_be_vec,
1156         &mips_elf32_n_le_vec,
1157         &mips_elf32_ntrad_be_vec,
1158         &mips_elf32_ntrad_le_vec,
1159         &mips_elf32_ntradfbsd_be_vec,
1160         &mips_elf32_ntradfbsd_le_vec,
1161         &mips_elf32_trad_be_vec,
1162         &mips_elf32_trad_le_vec,
1163         &mips_elf32_tradfbsd_be_vec,
1164         &mips_elf32_tradfbsd_le_vec,
1165         &mips_elf32_vxworks_be_vec,
1166         &mips_elf32_vxworks_le_vec,
1167         &mips_elf64_be_vec,
1168         &mips_elf64_le_vec,
1169         &mips_elf64_trad_be_vec,
1170         &mips_elf64_trad_le_vec,
1171         &mips_elf64_tradfbsd_be_vec,
1172         &mips_elf64_tradfbsd_le_vec,
1173 #endif
1174
1175 #ifdef BFD64
1176         &mmix_elf64_vec,
1177         &mmix_mmo_vec,
1178 #endif
1179
1180         &mn10200_elf32_vec,
1181         &mn10300_elf32_vec,
1182
1183         &moxie_elf32_be_vec,
1184         &moxie_elf32_le_vec,
1185
1186         &msp430_elf32_vec,
1187         &msp430_elf32_ti_vec,
1188
1189         &mt_elf32_vec,
1190
1191         &nds32_elf32_be_vec,
1192         &nds32_elf32_le_vec,
1193         &nds32_elf32_linux_be_vec,
1194         &nds32_elf32_linux_le_vec,
1195
1196 #ifdef BFD64
1197         &nfp_elf64_vec,
1198 #endif
1199
1200         &nios2_elf32_be_vec,
1201         &nios2_elf32_le_vec,
1202
1203         &ns32k_aout_pc532mach_vec,
1204         &ns32k_aout_pc532nbsd_vec,
1205
1206         &or1k_elf32_vec,
1207
1208         &pdp11_aout_vec,
1209
1210         &pef_vec,
1211         &pef_xlib_vec,
1212
1213         &pj_elf32_vec,
1214         &pj_elf32_le_vec,
1215
1216         &powerpc_boot_vec,
1217         &powerpc_elf32_vec,
1218         &powerpc_elf32_le_vec,
1219         &powerpc_elf32_fbsd_vec,
1220         &powerpc_elf32_vxworks_vec,
1221 #ifdef BFD64
1222         &powerpc_elf64_vec,
1223         &powerpc_elf64_le_vec,
1224         &powerpc_elf64_fbsd_vec,
1225 #endif
1226         &powerpc_pe_vec,
1227         &powerpc_pe_le_vec,
1228         &powerpc_pei_vec,
1229         &powerpc_pei_le_vec,
1230 #if 0
1231         /* This has the same magic number as RS/6000.  */
1232         &powerpc_xcoff_vec,
1233 #endif
1234
1235         &pru_elf32_vec,
1236
1237 #ifdef BFD64
1238         &riscv_elf32_vec,
1239         &riscv_elf64_vec,
1240 #endif
1241         &rl78_elf32_vec,
1242
1243 #ifdef BFD64
1244         &rs6000_xcoff64_vec,
1245         &rs6000_xcoff64_aix_vec,
1246 #endif
1247         &rs6000_xcoff_vec,
1248
1249         &rx_elf32_be_vec,
1250         &rx_elf32_be_ns_vec,
1251         &rx_elf32_le_vec,
1252
1253         &s390_elf32_vec,
1254 #ifdef BFD64
1255         &s390_elf64_vec,
1256 #endif
1257
1258 #ifdef BFD64
1259         &score_elf32_be_vec,
1260         &score_elf32_le_vec,
1261 #endif
1262
1263         &sh_coff_vec,
1264         &sh_coff_le_vec,
1265         &sh_coff_small_vec,
1266         &sh_coff_small_le_vec,
1267         &sh_elf32_vec,
1268         &sh_elf32_le_vec,
1269         &sh_elf32_fdpic_be_vec,
1270         &sh_elf32_fdpic_le_vec,
1271         &sh_elf32_linux_vec,
1272         &sh_elf32_linux_be_vec,
1273         &sh_elf32_nbsd_vec,
1274         &sh_elf32_nbsd_le_vec,
1275         &sh_elf32_vxworks_vec,
1276         &sh_elf32_vxworks_le_vec,
1277         &sh_pe_le_vec,
1278         &sh_pei_le_vec,
1279
1280         &sparc_elf32_vec,
1281         &sparc_elf32_sol2_vec,
1282         &sparc_elf32_vxworks_vec,
1283 #ifdef BFD64
1284         &sparc_elf64_vec,
1285         &sparc_elf64_fbsd_vec,
1286         &sparc_elf64_sol2_vec,
1287 #endif
1288
1289         &spu_elf32_vec,
1290
1291         &sym_vec,
1292
1293         &tic30_aout_vec,
1294         &tic30_coff_vec,
1295         &tic54x_coff0_beh_vec,
1296         &tic54x_coff0_vec,
1297         &tic54x_coff1_beh_vec,
1298         &tic54x_coff1_vec,
1299         &tic54x_coff2_beh_vec,
1300         &tic54x_coff2_vec,
1301         &tic6x_elf32_be_vec,
1302         &tic6x_elf32_le_vec,
1303         &tic80_coff_vec,
1304
1305         &tilegx_elf32_be_vec,
1306         &tilegx_elf32_le_vec,
1307 #ifdef BFD64
1308         &tilegx_elf64_be_vec,
1309         &tilegx_elf64_le_vec,
1310 #endif
1311         &tilepro_elf32_vec,
1312
1313         &ft32_elf32_vec,
1314
1315         &v800_elf32_vec,
1316         &v850_elf32_vec,
1317
1318         &vax_aout_1knbsd_vec,
1319         &vax_aout_nbsd_vec,
1320         &vax_elf32_vec,
1321
1322         &visium_elf32_vec,
1323
1324         &wasm_vec,
1325         &wasm32_elf32_vec,
1326
1327 #ifdef BFD64
1328         &x86_64_coff_vec,
1329         &x86_64_elf32_vec,
1330         &x86_64_elf32_nacl_vec,
1331         &x86_64_elf64_vec,
1332         &x86_64_elf64_cloudabi_vec,
1333         &x86_64_elf64_fbsd_vec,
1334         &x86_64_elf64_nacl_vec,
1335         &x86_64_elf64_sol2_vec,
1336         &x86_64_mach_o_vec,
1337         &x86_64_pe_vec,
1338         &x86_64_pe_be_vec,
1339         &x86_64_pei_vec,
1340 #endif
1341
1342         &xc16x_elf32_vec,
1343
1344         &xgate_elf32_vec,
1345
1346         &xstormy16_elf32_vec,
1347
1348         &xtensa_elf32_be_vec,
1349         &xtensa_elf32_le_vec,
1350
1351         &z80_coff_vec,
1352
1353         &z8k_coff_vec,
1354 #endif /* not SELECT_VECS */
1355
1356 /* Always support S-records, for convenience.  */
1357         &srec_vec,
1358         &symbolsrec_vec,
1359 /* And verilog.  */
1360         &verilog_vec,
1361 /* And tekhex */
1362         &tekhex_vec,
1363 /* Likewise for binary output.  */
1364         &binary_vec,
1365 /* Likewise for ihex.  */
1366         &ihex_vec,
1367
1368 #if BFD_SUPPORTS_PLUGINS
1369         &plugin_vec,
1370 #endif
1371
1372 /* Add any required traditional-core-file-handler.  */
1373
1374 #ifdef AIX386_CORE
1375         &core_aix386_vec,
1376 #endif
1377 #if 0
1378         /* We don't include cisco_core_*_vec.  Although it has a magic number,
1379            the magic number isn't at the beginning of the file, and thus
1380            might spuriously match other kinds of files.  */
1381         &core_cisco_be_vec,
1382         &core_cisco_le_vec,
1383 #endif
1384 #ifdef HPPABSD_CORE
1385         &core_hppabsd_vec,
1386 #endif
1387 #ifdef HPUX_CORE
1388         &core_hpux_vec,
1389 #endif
1390 #ifdef IRIX_CORE
1391         &core_irix_vec,
1392 #endif
1393 #ifdef NETBSD_CORE
1394         &core_netbsd_vec,
1395 #endif
1396 #ifdef OSF_CORE
1397         &core_osf_vec,
1398 #endif
1399 #ifdef PTRACE_CORE
1400         &core_ptrace_vec,
1401 #endif
1402 #ifdef SCO5_CORE
1403         &core_sco5_vec,
1404 #endif
1405 #ifdef TRAD_CORE
1406         &core_trad_vec,
1407 #endif
1408
1409         NULL /* end of list marker */
1410 };
1411 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
1412
1413 /* bfd_default_vector[0] contains either the address of the default vector,
1414    if there is one, or zero if there isn't.  */
1415
1416 const bfd_target *bfd_default_vector[] = {
1417 #ifdef DEFAULT_VECTOR
1418         &DEFAULT_VECTOR,
1419 #endif
1420         NULL
1421 };
1422
1423 /* bfd_associated_vector[] contains the associated target vectors used
1424    to reduce the ambiguity in bfd_check_format_matches.  */
1425
1426 static const bfd_target *_bfd_associated_vector[] = {
1427 #ifdef ASSOCIATED_VECS
1428         ASSOCIATED_VECS,
1429 #endif
1430         NULL
1431 };
1432 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
1433
1434 /* When there is an ambiguous match, bfd_check_format_matches puts the
1435    names of the matching targets in an array.  This variable is the maximum
1436    number of entries that the array could possibly need.  */
1437 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
1438 \f
1439 /* This array maps configuration triplets onto BFD vectors.  */
1440
1441 struct targmatch
1442 {
1443   /* The configuration triplet.  */
1444   const char *triplet;
1445   /* The BFD vector.  If this is NULL, then the vector is found by
1446      searching forward for the next structure with a non NULL vector
1447      field.  */
1448   const bfd_target *vector;
1449 };
1450
1451 /* targmatch.h is built by Makefile out of config.bfd.  */
1452 static const struct targmatch bfd_target_match[] = {
1453 #include "targmatch.h"
1454   { NULL, NULL }
1455 };
1456
1457 /* Find a target vector, given a name or configuration triplet.  */
1458
1459 static const bfd_target *
1460 find_target (const char *name)
1461 {
1462   const bfd_target * const *target;
1463   const struct targmatch *match;
1464
1465   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1466     if (strcmp (name, (*target)->name) == 0)
1467       return *target;
1468
1469   /* If we couldn't match on the exact name, try matching on the
1470      configuration triplet.  FIXME: We should run the triplet through
1471      config.sub first, but that is hard.  */
1472   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
1473     {
1474       if (fnmatch (match->triplet, name, 0) == 0)
1475         {
1476           while (match->vector == NULL)
1477             ++match;
1478           return match->vector;
1479         }
1480     }
1481
1482   bfd_set_error (bfd_error_invalid_target);
1483   return NULL;
1484 }
1485
1486 /*
1487 FUNCTION
1488         bfd_set_default_target
1489
1490 SYNOPSIS
1491         bfd_boolean bfd_set_default_target (const char *name);
1492
1493 DESCRIPTION
1494         Set the default target vector to use when recognizing a BFD.
1495         This takes the name of the target, which may be a BFD target
1496         name or a configuration triplet.
1497 */
1498
1499 bfd_boolean
1500 bfd_set_default_target (const char *name)
1501 {
1502   const bfd_target *target;
1503
1504   if (bfd_default_vector[0] != NULL
1505       && strcmp (name, bfd_default_vector[0]->name) == 0)
1506     return TRUE;
1507
1508   target = find_target (name);
1509   if (target == NULL)
1510     return FALSE;
1511
1512   bfd_default_vector[0] = target;
1513   return TRUE;
1514 }
1515
1516 /*
1517 FUNCTION
1518         bfd_find_target
1519
1520 SYNOPSIS
1521         const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
1522
1523 DESCRIPTION
1524         Return a pointer to the transfer vector for the object target
1525         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1526         choose the one in the environment variable <<GNUTARGET>>; if
1527         that is null or not defined, then choose the first entry in the
1528         target list.  Passing in the string "default" or setting the
1529         environment variable to "default" will cause the first entry in
1530         the target list to be returned, and "target_defaulted" will be
1531         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1532         <<bfd_check_format>> to loop over all the targets to find the
1533         one that matches the file being read.
1534 */
1535
1536 const bfd_target *
1537 bfd_find_target (const char *target_name, bfd *abfd)
1538 {
1539   const char *targname;
1540   const bfd_target *target;
1541
1542   if (target_name != NULL)
1543     targname = target_name;
1544   else
1545     targname = getenv ("GNUTARGET");
1546
1547   /* This is safe; the vector cannot be null.  */
1548   if (targname == NULL || strcmp (targname, "default") == 0)
1549     {
1550       if (bfd_default_vector[0] != NULL)
1551         target = bfd_default_vector[0];
1552       else
1553         target = bfd_target_vector[0];
1554       if (abfd)
1555         {
1556           abfd->xvec = target;
1557           abfd->target_defaulted = TRUE;
1558         }
1559       return target;
1560     }
1561
1562   if (abfd)
1563     abfd->target_defaulted = FALSE;
1564
1565   target = find_target (targname);
1566   if (target == NULL)
1567     return NULL;
1568
1569   if (abfd)
1570     abfd->xvec = target;
1571   return target;
1572 }
1573
1574 /* Helper function for bfd_get_target_info to determine the target's
1575    architecture.  This method handles bfd internal target names as
1576    tuples and triplets.  */
1577 static bfd_boolean
1578 _bfd_find_arch_match (const char *tname, const char **arch,
1579                       const char **def_target_arch)
1580 {
1581   if (!arch)
1582     return FALSE;
1583
1584   while (*arch != NULL)
1585     {
1586       const char *in_a = strstr (*arch, tname);
1587       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
1588
1589       if (in_a && (in_a == *arch || in_a[-1] == ':')
1590           && end_ch == 0)
1591         {
1592           *def_target_arch = *arch;
1593           return TRUE;
1594         }
1595       arch++;
1596     }
1597   return FALSE;
1598 }
1599
1600 /*
1601 FUNCTION
1602         bfd_get_target_info
1603 SYNOPSIS
1604         const bfd_target *bfd_get_target_info (const char *target_name,
1605                                                bfd *abfd,
1606                                                bfd_boolean *is_bigendian,
1607                                                int *underscoring,
1608                                                const char **def_target_arch);
1609 DESCRIPTION
1610         Return a pointer to the transfer vector for the object target
1611         named @var{target_name}.  If @var{target_name} is <<NULL>>,
1612         choose the one in the environment variable <<GNUTARGET>>; if
1613         that is null or not defined, then choose the first entry in the
1614         target list.  Passing in the string "default" or setting the
1615         environment variable to "default" will cause the first entry in
1616         the target list to be returned, and "target_defaulted" will be
1617         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
1618         <<bfd_check_format>> to loop over all the targets to find the
1619         one that matches the file being read.
1620         If @var{is_bigendian} is not <<NULL>>, then set this value to target's
1621         endian mode. True for big-endian, FALSE for little-endian or for
1622         invalid target.
1623         If @var{underscoring} is not <<NULL>>, then set this value to target's
1624         underscoring mode. Zero for none-underscoring, -1 for invalid target,
1625         else the value of target vector's symbol underscoring.
1626         If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
1627         string specified by the target_name.
1628 */
1629 const bfd_target *
1630 bfd_get_target_info (const char *target_name, bfd *abfd,
1631                      bfd_boolean *is_bigendian,
1632                      int *underscoring, const char **def_target_arch)
1633 {
1634   const bfd_target *target_vec;
1635
1636   if (is_bigendian)
1637     *is_bigendian = FALSE;
1638   if (underscoring)
1639     *underscoring = -1;
1640   if (def_target_arch)
1641     *def_target_arch = NULL;
1642   target_vec = bfd_find_target (target_name, abfd);
1643   if (! target_vec)
1644     return NULL;
1645   if (is_bigendian)
1646     *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
1647                                                                : FALSE);
1648   if (underscoring)
1649     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
1650
1651   if (def_target_arch)
1652     {
1653       const char *tname = target_vec->name;
1654       const char **arches = bfd_arch_list ();
1655
1656       if (arches && tname)
1657         {
1658           char *hyp = strchr (tname, '-');
1659
1660           if (hyp != NULL)
1661             {
1662               tname = ++hyp;
1663
1664               /* Make sure we detect architecture names
1665                  for triplets like "pe-arm-wince-little".  */
1666               if (!_bfd_find_arch_match (tname, arches, def_target_arch))
1667                 {
1668                   char new_tname[50];
1669
1670                   strcpy (new_tname, hyp);
1671                   while ((hyp = strrchr (new_tname, '-')) != NULL)
1672                     {
1673                       *hyp = 0;
1674                       if (_bfd_find_arch_match (new_tname, arches,
1675                                                 def_target_arch))
1676                         break;
1677                     }
1678                 }
1679             }
1680           else
1681             _bfd_find_arch_match (tname, arches, def_target_arch);
1682         }
1683
1684       if (arches)
1685         free (arches);
1686     }
1687   return target_vec;
1688 }
1689
1690 /*
1691 FUNCTION
1692         bfd_target_list
1693
1694 SYNOPSIS
1695         const char ** bfd_target_list (void);
1696
1697 DESCRIPTION
1698         Return a freshly malloced NULL-terminated
1699         vector of the names of all the valid BFD targets. Do not
1700         modify the names.
1701
1702 */
1703
1704 const char **
1705 bfd_target_list (void)
1706 {
1707   int vec_length = 0;
1708   bfd_size_type amt;
1709   const bfd_target * const *target;
1710   const  char **name_list, **name_ptr;
1711
1712   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1713     vec_length++;
1714
1715   amt = (vec_length + 1) * sizeof (char **);
1716   name_ptr = name_list = (const  char **) bfd_malloc (amt);
1717
1718   if (name_list == NULL)
1719     return NULL;
1720
1721   for (target = &bfd_target_vector[0]; *target != NULL; target++)
1722     if (target == &bfd_target_vector[0]
1723         || *target != bfd_target_vector[0])
1724       *name_ptr++ = (*target)->name;
1725
1726   *name_ptr = NULL;
1727   return name_list;
1728 }
1729
1730 /*
1731 FUNCTION
1732         bfd_iterate_over_targets
1733
1734 SYNOPSIS
1735         const bfd_target *bfd_iterate_over_targets
1736           (int (*func) (const bfd_target *, void *),
1737            void *data);
1738
1739 DESCRIPTION
1740         Call @var{func} for each target in the list of BFD target
1741         vectors, passing @var{data} to @var{func}.  Stop iterating if
1742         @var{func} returns a non-zero result, and return that target
1743         vector.  Return NULL if @var{func} always returns zero.
1744 */
1745
1746 const bfd_target *
1747 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
1748                           void *data)
1749 {
1750   const bfd_target *const *target;
1751
1752   for (target = bfd_target_vector; *target != NULL; ++target)
1753     if (func (*target, data))
1754       return *target;
1755
1756   return NULL;
1757 }
1758
1759 /*
1760 FUNCTION
1761         bfd_flavour_name
1762
1763 SYNOPSIS
1764         const char *bfd_flavour_name (enum bfd_flavour flavour);
1765
1766 DESCRIPTION
1767         Return the string form of @var{flavour}.
1768 */
1769
1770 const char *
1771 bfd_flavour_name (enum bfd_flavour flavour)
1772 {
1773   switch (flavour)
1774     {
1775     case bfd_target_unknown_flavour: return "unknown file format";
1776     case bfd_target_aout_flavour: return "a.out";
1777     case bfd_target_coff_flavour: return "COFF";
1778     case bfd_target_ecoff_flavour: return "ECOFF";
1779     case bfd_target_xcoff_flavour: return "XCOFF";
1780     case bfd_target_elf_flavour: return "ELF";
1781     case bfd_target_tekhex_flavour: return "Tekhex";
1782     case bfd_target_srec_flavour: return "Srec";
1783     case bfd_target_verilog_flavour: return "Verilog";
1784     case bfd_target_ihex_flavour: return "Ihex";
1785     case bfd_target_som_flavour: return "SOM";
1786     case bfd_target_os9k_flavour: return "OS9K";
1787     case bfd_target_versados_flavour: return "Versados";
1788     case bfd_target_msdos_flavour: return "MSDOS";
1789     case bfd_target_ovax_flavour: return "Ovax";
1790     case bfd_target_evax_flavour: return "Evax";
1791     case bfd_target_mmo_flavour: return "mmo";
1792     case bfd_target_mach_o_flavour: return "MACH_O";
1793     case bfd_target_pef_flavour: return "PEF";
1794     case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
1795     case bfd_target_sym_flavour: return "SYM";
1796     /* There is no "default" case here so that -Wswitch (part of -Wall)
1797        catches missing entries.  */
1798     }
1799
1800   abort ();
1801 }