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targets.c revision 1.1.1.6
      1 /* Generic target-file-type support for the BFD library.
      2    Copyright (C) 1990-2018 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_ieee_flavour,
    155 .  bfd_target_nlm_flavour,
    156 .  bfd_target_oasys_flavour,
    157 .  bfd_target_tekhex_flavour,
    158 .  bfd_target_srec_flavour,
    159 .  bfd_target_verilog_flavour,
    160 .  bfd_target_ihex_flavour,
    161 .  bfd_target_som_flavour,
    162 .  bfd_target_os9k_flavour,
    163 .  bfd_target_versados_flavour,
    164 .  bfd_target_msdos_flavour,
    165 .  bfd_target_ovax_flavour,
    166 .  bfd_target_evax_flavour,
    167 .  bfd_target_mmo_flavour,
    168 .  bfd_target_mach_o_flavour,
    169 .  bfd_target_pef_flavour,
    170 .  bfd_target_pef_xlib_flavour,
    171 .  bfd_target_sym_flavour
    172 .};
    173 .
    174 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
    175 .
    176 .{* Forward declaration.  *}
    177 .typedef struct bfd_link_info _bfd_link_info;
    178 .
    179 .{* Forward declaration.  *}
    180 .typedef struct flag_info flag_info;
    181 .
    182 .typedef struct bfd_target
    183 .{
    184 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
    185 .  char *name;
    186 .
    187 . {* The "flavour" of a back end is a general indication about
    188 .    the contents of a file.  *}
    189 .  enum bfd_flavour flavour;
    190 .
    191 .  {* The order of bytes within the data area of a file.  *}
    192 .  enum bfd_endian byteorder;
    193 .
    194 . {* The order of bytes within the header parts of a file.  *}
    195 .  enum bfd_endian header_byteorder;
    196 .
    197 .  {* A mask of all the flags which an executable may have set -
    198 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
    199 .  flagword object_flags;
    200 .
    201 . {* A mask of all the flags which a section may have set - from
    202 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
    203 .  flagword section_flags;
    204 .
    205 . {* The character normally found at the front of a symbol.
    206 .    (if any), perhaps `_'.  *}
    207 .  char symbol_leading_char;
    208 .
    209 . {* The pad character for file names within an archive header.  *}
    210 .  char ar_pad_char;
    211 .
    212 .  {* The maximum number of characters in an archive header.  *}
    213 .  unsigned char ar_max_namelen;
    214 .
    215 .  {* How well this target matches, used to select between various
    216 .     possible targets when more than one target matches.  *}
    217 .  unsigned char match_priority;
    218 .
    219 .  {* Entries for byte swapping for data. These are different from the
    220 .     other entry points, since they don't take a BFD as the first argument.
    221 .     Certain other handlers could do the same.  *}
    222 .  bfd_uint64_t	  (*bfd_getx64) (const void *);
    223 .  bfd_int64_t	  (*bfd_getx_signed_64) (const void *);
    224 .  void		  (*bfd_putx64) (bfd_uint64_t, void *);
    225 .  bfd_vma	  (*bfd_getx32) (const void *);
    226 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
    227 .  void		  (*bfd_putx32) (bfd_vma, void *);
    228 .  bfd_vma	  (*bfd_getx16) (const void *);
    229 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
    230 .  void		  (*bfd_putx16) (bfd_vma, void *);
    231 .
    232 .  {* Byte swapping for the headers.  *}
    233 .  bfd_uint64_t	  (*bfd_h_getx64) (const void *);
    234 .  bfd_int64_t	  (*bfd_h_getx_signed_64) (const void *);
    235 .  void		  (*bfd_h_putx64) (bfd_uint64_t, void *);
    236 .  bfd_vma	  (*bfd_h_getx32) (const void *);
    237 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
    238 .  void		  (*bfd_h_putx32) (bfd_vma, void *);
    239 .  bfd_vma	  (*bfd_h_getx16) (const void *);
    240 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
    241 .  void		  (*bfd_h_putx16) (bfd_vma, void *);
    242 .
    243 .  {* Format dependent routines: these are vectors of entry points
    244 .     within the target vector structure, one for each format to check.  *}
    245 .
    246 .  {* Check the format of a file being read.  Return a <<bfd_target *>> or zero.  *}
    247 .  const struct bfd_target *
    248 .	       (*_bfd_check_format[bfd_type_end]) (bfd *);
    249 .
    250 .  {* Set the format of a file being written.  *}
    251 .  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
    252 .
    253 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
    254 .  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
    255 .
    256 The general target vector.  These vectors are initialized using the
    257 BFD_JUMP_TABLE macros.
    258 .
    259 .  {* Generic entry points.  *}
    260 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
    261 .  NAME##_close_and_cleanup, \
    262 .  NAME##_bfd_free_cached_info, \
    263 .  NAME##_new_section_hook, \
    264 .  NAME##_get_section_contents, \
    265 .  NAME##_get_section_contents_in_window
    266 .
    267 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
    268 .  bfd_boolean (*_close_and_cleanup) (bfd *);
    269 .  {* Ask the BFD to free all cached information.  *}
    270 .  bfd_boolean (*_bfd_free_cached_info) (bfd *);
    271 .  {* Called when a new section is created.  *}
    272 .  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
    273 .  {* Read the contents of a section.  *}
    274 .  bfd_boolean (*_bfd_get_section_contents) (bfd *, sec_ptr, void *, file_ptr,
    275 .					     bfd_size_type);
    276 .  bfd_boolean (*_bfd_get_section_contents_in_window) (bfd *, sec_ptr,
    277 .						       bfd_window *, file_ptr,
    278 .						       bfd_size_type);
    279 .
    280 .  {* Entry points to copy private data.  *}
    281 .#define BFD_JUMP_TABLE_COPY(NAME) \
    282 .  NAME##_bfd_copy_private_bfd_data, \
    283 .  NAME##_bfd_merge_private_bfd_data, \
    284 .  _bfd_generic_init_private_section_data, \
    285 .  NAME##_bfd_copy_private_section_data, \
    286 .  NAME##_bfd_copy_private_symbol_data, \
    287 .  NAME##_bfd_copy_private_header_data, \
    288 .  NAME##_bfd_set_private_flags, \
    289 .  NAME##_bfd_print_private_bfd_data
    290 .
    291 .  {* Called to copy BFD general private data from one object file
    292 .     to another.  *}
    293 .  bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
    294 .  {* Called to merge BFD general private data from one object file
    295 .     to a common output file when linking.  *}
    296 .  bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *);
    297 .  {* Called to initialize BFD private section data from one object file
    298 .     to another.  *}
    299 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
    300 .	BFD_SEND (obfd, _bfd_init_private_section_data, \
    301 .		  (ibfd, isec, obfd, osec, link_info))
    302 .  bfd_boolean (*_bfd_init_private_section_data) (bfd *, sec_ptr, bfd *,
    303 .						  sec_ptr,
    304 .						  struct bfd_link_info *);
    305 .  {* Called to copy BFD private section data from one object file
    306 .     to another.  *}
    307 .  bfd_boolean (*_bfd_copy_private_section_data) (bfd *, sec_ptr, bfd *,
    308 .						  sec_ptr);
    309 .  {* Called to copy BFD private symbol data from one symbol
    310 .     to another.  *}
    311 .  bfd_boolean (*_bfd_copy_private_symbol_data) (bfd *, asymbol *, bfd *,
    312 .						 asymbol *);
    313 .  {* Called to copy BFD private header data from one object file
    314 .     to another.  *}
    315 .  bfd_boolean (*_bfd_copy_private_header_data) (bfd *, bfd *);
    316 .  {* Called to set private backend flags.  *}
    317 .  bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword);
    318 .
    319 .  {* Called to print private BFD data.  *}
    320 .  bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *);
    321 .
    322 .  {* Core file entry points.  *}
    323 .#define BFD_JUMP_TABLE_CORE(NAME) \
    324 .  NAME##_core_file_failing_command, \
    325 .  NAME##_core_file_failing_signal, \
    326 .  NAME##_core_file_matches_executable_p, \
    327 .  NAME##_core_file_pid
    328 .
    329 .  char *      (*_core_file_failing_command) (bfd *);
    330 .  int	       (*_core_file_failing_signal) (bfd *);
    331 .  bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *);
    332 .  int	       (*_core_file_pid) (bfd *);
    333 .
    334 .  {* Archive entry points.  *}
    335 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
    336 .  NAME##_slurp_armap, \
    337 .  NAME##_slurp_extended_name_table, \
    338 .  NAME##_construct_extended_name_table, \
    339 .  NAME##_truncate_arname, \
    340 .  NAME##_write_armap, \
    341 .  NAME##_read_ar_hdr, \
    342 .  NAME##_write_ar_hdr, \
    343 .  NAME##_openr_next_archived_file, \
    344 .  NAME##_get_elt_at_index, \
    345 .  NAME##_generic_stat_arch_elt, \
    346 .  NAME##_update_armap_timestamp
    347 .
    348 .  bfd_boolean (*_bfd_slurp_armap) (bfd *);
    349 .  bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *);
    350 .  bfd_boolean (*_bfd_construct_extended_name_table) (bfd *, char **,
    351 .						      bfd_size_type *,
    352 .						      const char **);
    353 .  void	       (*_bfd_truncate_arname) (bfd *, const char *, char *);
    354 .  bfd_boolean (*write_armap) (bfd *, unsigned int, struct orl *,
    355 .			       unsigned int, int);
    356 .  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
    357 .  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
    358 .  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
    359 .#define bfd_get_elt_at_index(b,i) \
    360 .	BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
    361 .  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
    362 .  int	       (*_bfd_stat_arch_elt) (bfd *, struct stat *);
    363 .  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
    364 .
    365 .  {* Entry points used for symbols.  *}
    366 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
    367 .  NAME##_get_symtab_upper_bound, \
    368 .  NAME##_canonicalize_symtab, \
    369 .  NAME##_make_empty_symbol, \
    370 .  NAME##_print_symbol, \
    371 .  NAME##_get_symbol_info, \
    372 .  NAME##_get_symbol_version_string, \
    373 .  NAME##_bfd_is_local_label_name, \
    374 .  NAME##_bfd_is_target_special_symbol, \
    375 .  NAME##_get_lineno, \
    376 .  NAME##_find_nearest_line, \
    377 .  NAME##_find_line, \
    378 .  NAME##_find_inliner_info, \
    379 .  NAME##_bfd_make_debug_symbol, \
    380 .  NAME##_read_minisymbols, \
    381 .  NAME##_minisymbol_to_symbol
    382 .
    383 .  long	       (*_bfd_get_symtab_upper_bound) (bfd *);
    384 .  long	       (*_bfd_canonicalize_symtab) (bfd *, struct bfd_symbol **);
    385 .  struct bfd_symbol *
    386 .	       (*_bfd_make_empty_symbol) (bfd *);
    387 .  void	       (*_bfd_print_symbol) (bfd *, void *, struct bfd_symbol *,
    388 .				     bfd_print_symbol_type);
    389 .#define bfd_print_symbol(b,p,s,e) \
    390 .	BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
    391 .  void	       (*_bfd_get_symbol_info) (bfd *, struct bfd_symbol *,
    392 .					symbol_info *);
    393 .#define bfd_get_symbol_info(b,p,e) \
    394 .	BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
    395 .  const char *(*_bfd_get_symbol_version_string) (bfd *, struct bfd_symbol *,
    396 .						  bfd_boolean *);
    397 .#define bfd_get_symbol_version_string(b,s,h) \
    398 .	BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h))
    399 .  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
    400 .  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
    401 .  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
    402 .  bfd_boolean (*_bfd_find_nearest_line) (bfd *, struct bfd_symbol **,
    403 .					  struct bfd_section *, bfd_vma,
    404 .					  const char **, const char **,
    405 .					  unsigned int *, unsigned int *);
    406 .  bfd_boolean (*_bfd_find_line) (bfd *, struct bfd_symbol **,
    407 .				  struct bfd_symbol *, const char **,
    408 .				  unsigned int *);
    409 .  bfd_boolean (*_bfd_find_inliner_info)
    410 .    (bfd *, const char **, const char **, unsigned int *);
    411 . {* Back-door to allow format-aware applications to create debug symbols
    412 .    while using BFD for everything else.  Currently used by the assembler
    413 .    when creating COFF files.  *}
    414 .  asymbol *   (*_bfd_make_debug_symbol) (bfd *, void *, unsigned long size);
    415 .#define bfd_read_minisymbols(b, d, m, s) \
    416 .	BFD_SEND (b, _read_minisymbols, (b, d, m, s))
    417 .  long	       (*_read_minisymbols) (bfd *, bfd_boolean, void **,
    418 .				     unsigned int *);
    419 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
    420 .	BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
    421 .  asymbol *   (*_minisymbol_to_symbol) (bfd *, bfd_boolean, const void *,
    422 .					 asymbol *);
    423 .
    424 .  {* Routines for relocs.  *}
    425 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
    426 .  NAME##_get_reloc_upper_bound, \
    427 .  NAME##_canonicalize_reloc, \
    428 .  NAME##_set_reloc, \
    429 .  NAME##_bfd_reloc_type_lookup, \
    430 .  NAME##_bfd_reloc_name_lookup
    431 .
    432 .  long	       (*_get_reloc_upper_bound) (bfd *, sec_ptr);
    433 .  long	       (*_bfd_canonicalize_reloc) (bfd *, sec_ptr, arelent **,
    434 .					   struct bfd_symbol **);
    435 .  void	       (*_bfd_set_reloc) (bfd *, sec_ptr, arelent **, unsigned int);
    436 .  {* See documentation on reloc types.  *}
    437 .  reloc_howto_type *
    438 .	       (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
    439 .  reloc_howto_type *
    440 .	       (*reloc_name_lookup) (bfd *, const char *);
    441 .
    442 .  {* Routines used when writing an object file.  *}
    443 .#define BFD_JUMP_TABLE_WRITE(NAME) \
    444 .  NAME##_set_arch_mach, \
    445 .  NAME##_set_section_contents
    446 .
    447 .  bfd_boolean (*_bfd_set_arch_mach) (bfd *, enum bfd_architecture,
    448 .				      unsigned long);
    449 .  bfd_boolean (*_bfd_set_section_contents) (bfd *, sec_ptr, const void *,
    450 .					     file_ptr, bfd_size_type);
    451 .
    452 .  {* Routines used by the linker.  *}
    453 .#define BFD_JUMP_TABLE_LINK(NAME) \
    454 .  NAME##_sizeof_headers, \
    455 .  NAME##_bfd_get_relocated_section_contents, \
    456 .  NAME##_bfd_relax_section, \
    457 .  NAME##_bfd_link_hash_table_create, \
    458 .  NAME##_bfd_link_add_symbols, \
    459 .  NAME##_bfd_link_just_syms, \
    460 .  NAME##_bfd_copy_link_hash_symbol_type, \
    461 .  NAME##_bfd_final_link, \
    462 .  NAME##_bfd_link_split_section, \
    463 .  NAME##_bfd_link_check_relocs, \
    464 .  NAME##_bfd_gc_sections, \
    465 .  NAME##_bfd_lookup_section_flags, \
    466 .  NAME##_bfd_merge_sections, \
    467 .  NAME##_bfd_is_group_section, \
    468 .  NAME##_bfd_discard_group, \
    469 .  NAME##_section_already_linked, \
    470 .  NAME##_bfd_define_common_symbol, \
    471 .  NAME##_bfd_define_start_stop
    472 .
    473 .  int	       (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
    474 .  bfd_byte *  (*_bfd_get_relocated_section_contents) (bfd *,
    475 .						       struct bfd_link_info *,
    476 .						       struct bfd_link_order *,
    477 .						       bfd_byte *, bfd_boolean,
    478 .						       struct bfd_symbol **);
    479 .
    480 .  bfd_boolean (*_bfd_relax_section) (bfd *, struct bfd_section *,
    481 .				      struct bfd_link_info *, bfd_boolean *);
    482 .
    483 .  {* Create a hash table for the linker.  Different backends store
    484 .     different information in this table.  *}
    485 .  struct bfd_link_hash_table *
    486 .	       (*_bfd_link_hash_table_create) (bfd *);
    487 .
    488 .  {* Add symbols from this object file into the hash table.  *}
    489 .  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
    490 .
    491 .  {* Indicate that we are only retrieving symbol values from this section.  *}
    492 .  void	       (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
    493 .
    494 .  {* Copy the symbol type and other attributes for a linker script
    495 .     assignment of one symbol to another.  *}
    496 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
    497 .	BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
    498 .  void	       (*_bfd_copy_link_hash_symbol_type) (bfd *,
    499 .						   struct bfd_link_hash_entry *,
    500 .						   struct bfd_link_hash_entry *);
    501 .
    502 .  {* Do a link based on the link_order structures attached to each
    503 .     section of the BFD.  *}
    504 .  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
    505 .
    506 .  {* Should this section be split up into smaller pieces during linking.  *}
    507 .  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
    508 .
    509 .  {* Check the relocations in the bfd for validity.  *}
    510 .  bfd_boolean (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
    511 .
    512 .  {* Remove sections that are not referenced from the output.  *}
    513 .  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
    514 .
    515 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
    516 .  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
    517 .					     struct flag_info *, asection *);
    518 .
    519 .  {* Attempt to merge SEC_MERGE sections.  *}
    520 .  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
    521 .
    522 .  {* Is this section a member of a group?  *}
    523 .  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
    524 .
    525 .  {* Discard members of a group.  *}
    526 .  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
    527 .
    528 .  {* Check if SEC has been already linked during a reloceatable or
    529 .     final link.  *}
    530 .  bfd_boolean (*_section_already_linked) (bfd *, asection *,
    531 .					   struct bfd_link_info *);
    532 .
    533 .  {* Define a common symbol.  *}
    534 .  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
    535 .					     struct bfd_link_hash_entry *);
    536 .
    537 .  {* Define a __start, __stop, .startof. or .sizeof. symbol.  *}
    538 .  struct bfd_link_hash_entry *
    539 .	       (*_bfd_define_start_stop) (struct bfd_link_info *, const char *,
    540 .					  asection *);
    541 .
    542 .  {* Routines to handle dynamic symbols and relocs.  *}
    543 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
    544 .  NAME##_get_dynamic_symtab_upper_bound, \
    545 .  NAME##_canonicalize_dynamic_symtab, \
    546 .  NAME##_get_synthetic_symtab, \
    547 .  NAME##_get_dynamic_reloc_upper_bound, \
    548 .  NAME##_canonicalize_dynamic_reloc
    549 .
    550 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
    551 .  long	       (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
    552 .  {* Read in the dynamic symbols.  *}
    553 .  long	       (*_bfd_canonicalize_dynamic_symtab) (bfd *, struct bfd_symbol **);
    554 .  {* Create synthetized symbols.  *}
    555 .  long	       (*_bfd_get_synthetic_symtab) (bfd *, long, struct bfd_symbol **,
    556 .					     long, struct bfd_symbol **,
    557 .					     struct bfd_symbol **);
    558 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
    559 .  long	       (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
    560 .  {* Read in the dynamic relocs.  *}
    561 .  long	       (*_bfd_canonicalize_dynamic_reloc) (bfd *, arelent **,
    562 .						   struct bfd_symbol **);
    563 .
    564 
    565 A pointer to an alternative bfd_target in case the current one is not
    566 satisfactory.  This can happen when the target cpu supports both big
    567 and little endian code, and target chosen by the linker has the wrong
    568 endianness.  The function open_output() in ld/ldlang.c uses this field
    569 to find an alternative output format that is suitable.
    570 
    571 .  {* Opposite endian version of this target.  *}
    572 .  const struct bfd_target *alternative_target;
    573 .
    574 
    575 .  {* Data for use by back-end routines, which isn't
    576 .     generic enough to belong in this structure.  *}
    577 .  const void *backend_data;
    578 .
    579 .} bfd_target;
    580 .
    581 */
    582 
    583 /* All known xvecs (even those that don't compile on all systems).
    584    Alphabetized for easy reference.
    585    They are listed a second time below, since
    586    we can't intermix extern's and initializers.  */
    587 extern const bfd_target aarch64_elf32_be_vec;
    588 extern const bfd_target aarch64_elf32_le_vec;
    589 extern const bfd_target aarch64_elf64_be_vec;
    590 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
    591 extern const bfd_target aarch64_elf64_le_vec;
    592 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
    593 extern const bfd_target aarch64_mach_o_vec;
    594 extern const bfd_target alpha_ecoff_le_vec;
    595 extern const bfd_target alpha_elf64_vec;
    596 extern const bfd_target alpha_elf64_fbsd_vec;
    597 extern const bfd_target alpha_nlm32_vec;
    598 extern const bfd_target alpha_vms_vec;
    599 extern const bfd_target alpha_vms_lib_txt_vec;
    600 extern const bfd_target am33_elf32_linux_vec;
    601 extern const bfd_target aout0_be_vec;
    602 extern const bfd_target aout64_vec;
    603 extern const bfd_target aout_vec;
    604 extern const bfd_target aout_adobe_vec;
    605 extern const bfd_target arc_elf32_be_vec;
    606 extern const bfd_target arc_elf32_le_vec;
    607 extern const bfd_target arm_aout_be_vec;
    608 extern const bfd_target arm_aout_le_vec;
    609 extern const bfd_target arm_aout_nbsd_vec;
    610 extern const bfd_target arm_aout_riscix_vec;
    611 extern const bfd_target arm_coff_be_vec;
    612 extern const bfd_target arm_coff_le_vec;
    613 extern const bfd_target arm_elf32_be_vec;
    614 extern const bfd_target arm_elf32_le_vec;
    615 extern const bfd_target arm_elf32_nacl_be_vec;
    616 extern const bfd_target arm_elf32_nacl_le_vec;
    617 extern const bfd_target arm_elf32_symbian_be_vec;
    618 extern const bfd_target arm_elf32_symbian_le_vec;
    619 extern const bfd_target arm_elf32_vxworks_be_vec;
    620 extern const bfd_target arm_elf32_vxworks_le_vec;
    621 extern const bfd_target arm_mach_o_vec;
    622 extern const bfd_target arm_pe_be_vec;
    623 extern const bfd_target arm_pe_le_vec;
    624 extern const bfd_target arm_pe_epoc_be_vec;
    625 extern const bfd_target arm_pe_epoc_le_vec;
    626 extern const bfd_target arm_pe_wince_be_vec;
    627 extern const bfd_target arm_pe_wince_le_vec;
    628 extern const bfd_target arm_pei_be_vec;
    629 extern const bfd_target arm_pei_le_vec;
    630 extern const bfd_target arm_pei_epoc_be_vec;
    631 extern const bfd_target arm_pei_epoc_le_vec;
    632 extern const bfd_target arm_pei_wince_be_vec;
    633 extern const bfd_target arm_pei_wince_le_vec;
    634 extern const bfd_target avr_elf32_vec;
    635 extern const bfd_target bfin_elf32_vec;
    636 extern const bfd_target bfin_elf32_fdpic_vec;
    637 extern const bfd_target bout_be_vec;
    638 extern const bfd_target bout_le_vec;
    639 extern const bfd_target cr16_elf32_vec;
    640 extern const bfd_target cr16c_elf32_vec;
    641 extern const bfd_target cris_aout_vec;
    642 extern const bfd_target cris_elf32_vec;
    643 extern const bfd_target cris_elf32_us_vec;
    644 extern const bfd_target crx_elf32_vec;
    645 extern const bfd_target d10v_elf32_vec;
    646 extern const bfd_target d30v_elf32_vec;
    647 extern const bfd_target dlx_elf32_be_vec;
    648 extern const bfd_target elf32_be_vec;
    649 extern const bfd_target elf32_le_vec;
    650 extern const bfd_target elf64_be_vec;
    651 extern const bfd_target elf64_le_vec;
    652 extern const bfd_target epiphany_elf32_vec;
    653 extern const bfd_target fr30_elf32_vec;
    654 extern const bfd_target frv_elf32_vec;
    655 extern const bfd_target frv_elf32_fdpic_vec;
    656 extern const bfd_target h8300_coff_vec;
    657 extern const bfd_target h8300_elf32_vec;
    658 extern const bfd_target h8300_elf32_linux_vec;
    659 extern const bfd_target h8500_coff_vec;
    660 extern const bfd_target hppa_elf32_vec;
    661 extern const bfd_target hppa_elf32_linux_vec;
    662 extern const bfd_target hppa_elf32_nbsd_vec;
    663 extern const bfd_target hppa_elf64_vec;
    664 extern const bfd_target hppa_elf64_linux_vec;
    665 extern const bfd_target hppa_som_vec;
    666 extern const bfd_target i370_elf32_vec;
    667 extern const bfd_target i386_aout_vec;
    668 extern const bfd_target i386_aout_bsd_vec;
    669 extern const bfd_target i386_aout_dynix_vec;
    670 extern const bfd_target i386_aout_fbsd_vec;
    671 extern const bfd_target i386_aout_linux_vec;
    672 extern const bfd_target i386_aout_lynx_vec;
    673 extern const bfd_target i386_aout_mach3_vec;
    674 extern const bfd_target i386_aout_nbsd_vec;
    675 extern const bfd_target i386_aout_os9k_vec;
    676 extern const bfd_target i386_coff_vec;
    677 extern const bfd_target i386_coff_go32_vec;
    678 extern const bfd_target i386_coff_go32stubbed_vec;
    679 extern const bfd_target i386_coff_lynx_vec;
    680 extern const bfd_target i386_elf32_vec;
    681 extern const bfd_target i386_elf32_fbsd_vec;
    682 extern const bfd_target i386_elf32_nacl_vec;
    683 extern const bfd_target i386_elf32_sol2_vec;
    684 extern const bfd_target i386_elf32_vxworks_vec;
    685 extern const bfd_target i386_mach_o_vec;
    686 extern const bfd_target i386_msdos_vec;
    687 extern const bfd_target i386_nlm32_vec;
    688 extern const bfd_target i386_pe_vec;
    689 extern const bfd_target i386_pei_vec;
    690 extern const bfd_target iamcu_elf32_vec;
    691 extern const bfd_target i860_coff_vec;
    692 extern const bfd_target i860_elf32_vec;
    693 extern const bfd_target i860_elf32_le_vec;
    694 extern const bfd_target i960_elf32_vec;
    695 extern const bfd_target ia64_elf32_be_vec;
    696 extern const bfd_target ia64_elf32_hpux_be_vec;
    697 extern const bfd_target ia64_elf64_be_vec;
    698 extern const bfd_target ia64_elf64_le_vec;
    699 extern const bfd_target ia64_elf64_hpux_be_vec;
    700 extern const bfd_target ia64_elf64_vms_vec;
    701 extern const bfd_target ia64_pei_vec;
    702 extern const bfd_target icoff_be_vec;
    703 extern const bfd_target icoff_le_vec;
    704 extern const bfd_target ieee_vec;
    705 extern const bfd_target ip2k_elf32_vec;
    706 extern const bfd_target iq2000_elf32_vec;
    707 extern const bfd_target k1om_elf64_vec;
    708 extern const bfd_target k1om_elf64_fbsd_vec;
    709 extern const bfd_target l1om_elf64_vec;
    710 extern const bfd_target l1om_elf64_fbsd_vec;
    711 extern const bfd_target lm32_elf32_vec;
    712 extern const bfd_target lm32_elf32_fdpic_vec;
    713 extern const bfd_target m32c_elf32_vec;
    714 extern const bfd_target m32r_elf32_vec;
    715 extern const bfd_target m32r_elf32_le_vec;
    716 extern const bfd_target m32r_elf32_linux_vec;
    717 extern const bfd_target m32r_elf32_linux_le_vec;
    718 extern const bfd_target m68hc11_elf32_vec;
    719 extern const bfd_target m68hc12_elf32_vec;
    720 extern const bfd_target m68k_aout_4knbsd_vec;
    721 extern const bfd_target m68k_aout_hp300bsd_vec;
    722 extern const bfd_target m68k_aout_hp300hpux_vec;
    723 extern const bfd_target m68k_aout_linux_vec;
    724 extern const bfd_target m68k_aout_nbsd_vec;
    725 extern const bfd_target m68k_aout_newsos3_vec;
    726 extern const bfd_target m68k_coff_vec;
    727 extern const bfd_target m68k_coff_apollo_vec;
    728 extern const bfd_target m68k_coff_aux_vec;
    729 extern const bfd_target m68k_coff_sysv_vec;
    730 extern const bfd_target m68k_coff_un_vec;
    731 extern const bfd_target m68k_elf32_vec;
    732 extern const bfd_target m68k_versados_vec;
    733 extern const bfd_target m88k_aout_mach3_vec;
    734 extern const bfd_target m88k_aout_obsd_vec;
    735 extern const bfd_target m88k_coff_bcs_vec;
    736 extern const bfd_target m88k_elf32_vec;
    737 extern const bfd_target mach_o_be_vec;
    738 extern const bfd_target mach_o_le_vec;
    739 extern const bfd_target mach_o_fat_vec;
    740 extern const bfd_target mcore_elf32_be_vec;
    741 extern const bfd_target mcore_elf32_le_vec;
    742 extern const bfd_target mcore_pe_be_vec;
    743 extern const bfd_target mcore_pe_le_vec;
    744 extern const bfd_target mcore_pei_be_vec;
    745 extern const bfd_target mcore_pei_le_vec;
    746 extern const bfd_target mep_elf32_vec;
    747 extern const bfd_target mep_elf32_le_vec;
    748 extern const bfd_target metag_elf32_vec;
    749 extern const bfd_target microblaze_elf32_vec;
    750 extern const bfd_target microblaze_elf32_le_vec;
    751 extern const bfd_target mips_aout_be_vec;
    752 extern const bfd_target mips_aout_le_vec;
    753 extern const bfd_target mips_ecoff_be_vec;
    754 extern const bfd_target mips_ecoff_le_vec;
    755 extern const bfd_target mips_ecoff_bele_vec;
    756 extern const bfd_target mips_elf32_be_vec;
    757 extern const bfd_target mips_elf32_le_vec;
    758 extern const bfd_target mips_elf32_n_be_vec;
    759 extern const bfd_target mips_elf32_n_le_vec;
    760 extern const bfd_target mips_elf32_ntrad_be_vec;
    761 extern const bfd_target mips_elf32_ntrad_le_vec;
    762 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
    763 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
    764 extern const bfd_target mips_elf32_trad_be_vec;
    765 extern const bfd_target mips_elf32_trad_le_vec;
    766 extern const bfd_target mips_elf32_tradfbsd_be_vec;
    767 extern const bfd_target mips_elf32_tradfbsd_le_vec;
    768 extern const bfd_target mips_elf32_vxworks_be_vec;
    769 extern const bfd_target mips_elf32_vxworks_le_vec;
    770 extern const bfd_target mips_elf64_be_vec;
    771 extern const bfd_target mips_elf64_le_vec;
    772 extern const bfd_target mips_elf64_trad_be_vec;
    773 extern const bfd_target mips_elf64_trad_le_vec;
    774 extern const bfd_target mips_elf64_tradfbsd_be_vec;
    775 extern const bfd_target mips_elf64_tradfbsd_le_vec;
    776 extern const bfd_target mips_pe_le_vec;
    777 extern const bfd_target mips_pei_le_vec;
    778 extern const bfd_target mmix_elf64_vec;
    779 extern const bfd_target mmix_mmo_vec;
    780 extern const bfd_target mn10200_elf32_vec;
    781 extern const bfd_target mn10300_elf32_vec;
    782 extern const bfd_target moxie_elf32_be_vec;
    783 extern const bfd_target moxie_elf32_le_vec;
    784 extern const bfd_target msp430_elf32_vec;
    785 extern const bfd_target msp430_elf32_ti_vec;
    786 extern const bfd_target mt_elf32_vec;
    787 extern const bfd_target nds32_elf32_be_vec;
    788 extern const bfd_target nds32_elf32_le_vec;
    789 extern const bfd_target nds32_elf32_linux_be_vec;
    790 extern const bfd_target nds32_elf32_linux_le_vec;
    791 extern const bfd_target nios2_elf32_be_vec;
    792 extern const bfd_target nios2_elf32_le_vec;
    793 extern const bfd_target ns32k_aout_pc532mach_vec;
    794 extern const bfd_target ns32k_aout_pc532nbsd_vec;
    795 extern const bfd_target oasys_vec;
    796 extern const bfd_target or1k_elf32_vec;
    797 extern const bfd_target pdp11_aout_vec;
    798 extern const bfd_target pef_vec;
    799 extern const bfd_target pef_xlib_vec;
    800 extern const bfd_target pj_elf32_vec;
    801 extern const bfd_target pj_elf32_le_vec;
    802 extern const bfd_target plugin_vec;
    803 extern const bfd_target powerpc_boot_vec;
    804 extern const bfd_target powerpc_elf32_vec;
    805 extern const bfd_target powerpc_elf32_le_vec;
    806 extern const bfd_target powerpc_elf32_fbsd_vec;
    807 extern const bfd_target powerpc_elf32_vxworks_vec;
    808 extern const bfd_target powerpc_elf64_vec;
    809 extern const bfd_target powerpc_elf64_le_vec;
    810 extern const bfd_target powerpc_elf64_fbsd_vec;
    811 extern const bfd_target powerpc_nlm32_vec;
    812 extern const bfd_target powerpc_pe_vec;
    813 extern const bfd_target powerpc_pe_le_vec;
    814 extern const bfd_target powerpc_pei_vec;
    815 extern const bfd_target powerpc_pei_le_vec;
    816 extern const bfd_target powerpc_xcoff_vec;
    817 extern const bfd_target pru_elf32_vec;
    818 extern const bfd_target riscv_elf32_vec;
    819 extern const bfd_target riscv_elf64_vec;
    820 extern const bfd_target rl78_elf32_vec;
    821 extern const bfd_target rs6000_xcoff64_vec;
    822 extern const bfd_target rs6000_xcoff64_aix_vec;
    823 extern const bfd_target rs6000_xcoff_vec;
    824 extern const bfd_target rx_elf32_be_vec;
    825 extern const bfd_target rx_elf32_be_ns_vec;
    826 extern const bfd_target rx_elf32_le_vec;
    827 extern const bfd_target s390_elf32_vec;
    828 extern const bfd_target s390_elf64_vec;
    829 extern const bfd_target score_elf32_be_vec;
    830 extern const bfd_target score_elf32_le_vec;
    831 extern const bfd_target sh64_elf32_vec;
    832 extern const bfd_target sh64_elf32_le_vec;
    833 extern const bfd_target sh64_elf32_linux_vec;
    834 extern const bfd_target sh64_elf32_linux_be_vec;
    835 extern const bfd_target sh64_elf32_nbsd_vec;
    836 extern const bfd_target sh64_elf32_nbsd_le_vec;
    837 extern const bfd_target sh64_elf64_vec;
    838 extern const bfd_target sh64_elf64_le_vec;
    839 extern const bfd_target sh64_elf64_linux_vec;
    840 extern const bfd_target sh64_elf64_linux_be_vec;
    841 extern const bfd_target sh64_elf64_nbsd_vec;
    842 extern const bfd_target sh64_elf64_nbsd_le_vec;
    843 extern const bfd_target sh_coff_vec;
    844 extern const bfd_target sh_coff_le_vec;
    845 extern const bfd_target sh_coff_small_vec;
    846 extern const bfd_target sh_coff_small_le_vec;
    847 extern const bfd_target sh_elf32_vec;
    848 extern const bfd_target sh_elf32_le_vec;
    849 extern const bfd_target sh_elf32_fdpic_be_vec;
    850 extern const bfd_target sh_elf32_fdpic_le_vec;
    851 extern const bfd_target sh_elf32_linux_vec;
    852 extern const bfd_target sh_elf32_linux_be_vec;
    853 extern const bfd_target sh_elf32_nbsd_vec;
    854 extern const bfd_target sh_elf32_nbsd_le_vec;
    855 extern const bfd_target sh_elf32_symbian_le_vec;
    856 extern const bfd_target sh_elf32_vxworks_vec;
    857 extern const bfd_target sh_elf32_vxworks_le_vec;
    858 extern const bfd_target sh_pe_le_vec;
    859 extern const bfd_target sh_pei_le_vec;
    860 extern const bfd_target sparc_aout_le_vec;
    861 extern const bfd_target sparc_aout_linux_vec;
    862 extern const bfd_target sparc_aout_lynx_vec;
    863 extern const bfd_target sparc_aout_nbsd_vec;
    864 extern const bfd_target sparc_aout_sunos_be_vec;
    865 extern const bfd_target sparc_coff_vec;
    866 extern const bfd_target sparc_coff_lynx_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 sparc_nlm32_vec;
    874 extern const bfd_target spu_elf32_vec;
    875 extern const bfd_target sym_vec;
    876 extern const bfd_target tic30_aout_vec;
    877 extern const bfd_target tic30_coff_vec;
    878 extern const bfd_target tic4x_coff0_vec;
    879 extern const bfd_target tic4x_coff0_beh_vec;
    880 extern const bfd_target tic4x_coff1_vec;
    881 extern const bfd_target tic4x_coff1_beh_vec;
    882 extern const bfd_target tic4x_coff2_vec;
    883 extern const bfd_target tic4x_coff2_beh_vec;
    884 extern const bfd_target tic54x_coff0_vec;
    885 extern const bfd_target tic54x_coff0_beh_vec;
    886 extern const bfd_target tic54x_coff1_vec;
    887 extern const bfd_target tic54x_coff1_beh_vec;
    888 extern const bfd_target tic54x_coff2_vec;
    889 extern const bfd_target tic54x_coff2_beh_vec;
    890 extern const bfd_target tic6x_elf32_be_vec;
    891 extern const bfd_target tic6x_elf32_le_vec;
    892 extern const bfd_target tic6x_elf32_c6000_be_vec;
    893 extern const bfd_target tic6x_elf32_c6000_le_vec;
    894 extern const bfd_target tic6x_elf32_linux_be_vec;
    895 extern const bfd_target tic6x_elf32_linux_le_vec;
    896 extern const bfd_target tic80_coff_vec;
    897 extern const bfd_target tilegx_elf32_be_vec;
    898 extern const bfd_target tilegx_elf32_le_vec;
    899 extern const bfd_target tilegx_elf64_be_vec;
    900 extern const bfd_target tilegx_elf64_le_vec;
    901 extern const bfd_target tilepro_elf32_vec;
    902 extern const bfd_target v800_elf32_vec;
    903 extern const bfd_target v850_elf32_vec;
    904 extern const bfd_target ft32_elf32_vec;
    905 extern const bfd_target vax_aout_1knbsd_vec;
    906 extern const bfd_target vax_aout_bsd_vec;
    907 extern const bfd_target vax_aout_nbsd_vec;
    908 extern const bfd_target vax_elf32_vec;
    909 extern const bfd_target visium_elf32_vec;
    910 extern const bfd_target w65_coff_vec;
    911 extern const bfd_target wasm_vec;
    912 extern const bfd_target wasm32_elf32_vec;
    913 extern const bfd_target we32k_coff_vec;
    914 extern const bfd_target x86_64_coff_vec;
    915 extern const bfd_target x86_64_elf32_vec;
    916 extern const bfd_target x86_64_elf32_nacl_vec;
    917 extern const bfd_target x86_64_elf64_vec;
    918 extern const bfd_target x86_64_elf64_cloudabi_vec;
    919 extern const bfd_target x86_64_elf64_fbsd_vec;
    920 extern const bfd_target x86_64_elf64_nacl_vec;
    921 extern const bfd_target x86_64_elf64_sol2_vec;
    922 extern const bfd_target x86_64_mach_o_vec;
    923 extern const bfd_target x86_64_pe_vec;
    924 extern const bfd_target x86_64_pe_be_vec;
    925 extern const bfd_target x86_64_pei_vec;
    926 extern const bfd_target xc16x_elf32_vec;
    927 extern const bfd_target xgate_elf32_vec;
    928 extern const bfd_target xstormy16_elf32_vec;
    929 extern const bfd_target xtensa_elf32_be_vec;
    930 extern const bfd_target xtensa_elf32_le_vec;
    931 extern const bfd_target z80_coff_vec;
    932 extern const bfd_target z8k_coff_vec;
    933 
    934 /* These are always included.  */
    935 extern const bfd_target srec_vec;
    936 extern const bfd_target symbolsrec_vec;
    937 extern const bfd_target verilog_vec;
    938 extern const bfd_target tekhex_vec;
    939 extern const bfd_target binary_vec;
    940 extern const bfd_target ihex_vec;
    941 
    942 /* All of the xvecs for core files.  */
    943 extern const bfd_target core_aix386_vec;
    944 extern const bfd_target core_cisco_be_vec;
    945 extern const bfd_target core_cisco_le_vec;
    946 extern const bfd_target core_hppabsd_vec;
    947 extern const bfd_target core_hpux_vec;
    948 extern const bfd_target core_irix_vec;
    949 extern const bfd_target core_netbsd_vec;
    950 extern const bfd_target core_osf_vec;
    951 extern const bfd_target core_ptrace_vec;
    952 extern const bfd_target core_sco5_vec;
    953 extern const bfd_target core_trad_vec;
    954 
    955 static const bfd_target * const _bfd_target_vector[] =
    956 {
    957 #ifdef SELECT_VECS
    958 
    959 	SELECT_VECS,
    960 
    961 #else /* not SELECT_VECS */
    962 
    963 #ifdef DEFAULT_VECTOR
    964 	&DEFAULT_VECTOR,
    965 #endif
    966 	/* This list is alphabetized to make it easy to compare
    967 	   with other vector lists -- the decls above and
    968 	   the case statement in configure.ac.
    969 	   Try to keep it in order when adding new targets, and
    970 	   use a name of the form <cpu>_<format>_<other>_<endian>_vec.
    971 	   Note that sorting is done as if _<endian>_vec wasn't present.
    972 	   Vectors that don't compile on all systems, or aren't finished,
    973 	   should have an entry here with #if 0 around it, to show that
    974 	   it wasn't omitted by mistake.  */
    975 #ifdef BFD64
    976 	&aarch64_elf32_be_vec,
    977 	&aarch64_elf32_le_vec,
    978 	&aarch64_elf64_be_vec,
    979 	&aarch64_elf64_be_cloudabi_vec,
    980 	&aarch64_elf64_le_vec,
    981 	&aarch64_elf64_le_cloudabi_vec,
    982 	&aarch64_mach_o_vec,
    983 #endif
    984 
    985 #ifdef BFD64
    986 	&alpha_ecoff_le_vec,
    987 	&alpha_elf64_vec,
    988 	&alpha_elf64_fbsd_vec,
    989 	&alpha_nlm32_vec,
    990 	&alpha_vms_vec,
    991 #endif
    992 	&alpha_vms_lib_txt_vec,
    993 
    994 	&am33_elf32_linux_vec,
    995 
    996 	&aout0_be_vec,
    997 #ifdef BFD64
    998 	&aout64_vec,	/* Only compiled if host has long-long support.  */
    999 #endif
   1000 #if 0
   1001 	/* Since a.out files lack decent magic numbers, no way to recognize
   1002 	   which kind of a.out file it is.  */
   1003 	&aout_vec,
   1004 #endif
   1005 	&aout_adobe_vec,
   1006 
   1007 	&arc_elf32_be_vec,
   1008 	&arc_elf32_le_vec,
   1009 
   1010 #if 0
   1011 	/* We have no way of distinguishing these from other a.out variants.  */
   1012 	&arm_aout_be_vec,
   1013 	&arm_aout_le_vec,
   1014 #endif
   1015 	&arm_aout_nbsd_vec,
   1016 #if 0
   1017 	/* We have no way of distinguishing these from other a.out variants.  */
   1018 	&arm_aout_riscix_vec,
   1019 #endif
   1020 	&arm_coff_be_vec,
   1021 	&arm_coff_le_vec,
   1022 	&arm_elf32_be_vec,
   1023 	&arm_elf32_le_vec,
   1024 	&arm_elf32_symbian_be_vec,
   1025 	&arm_elf32_symbian_le_vec,
   1026 	&arm_elf32_vxworks_be_vec,
   1027 	&arm_elf32_vxworks_le_vec,
   1028 	&arm_mach_o_vec,
   1029 	&arm_pe_be_vec,
   1030 	&arm_pe_le_vec,
   1031 	&arm_pe_epoc_be_vec,
   1032 	&arm_pe_epoc_le_vec,
   1033 	&arm_pe_wince_be_vec,
   1034 	&arm_pe_wince_le_vec,
   1035 	&arm_pei_be_vec,
   1036 	&arm_pei_le_vec,
   1037 	&arm_pei_epoc_be_vec,
   1038 	&arm_pei_epoc_le_vec,
   1039 	&arm_pei_wince_be_vec,
   1040 	&arm_pei_wince_le_vec,
   1041 
   1042 	&avr_elf32_vec,
   1043 
   1044 	&bfin_elf32_vec,
   1045 	&bfin_elf32_fdpic_vec,
   1046 
   1047 	&bout_be_vec,
   1048 	&bout_le_vec,
   1049 
   1050 	&cr16_elf32_vec,
   1051 	&cr16c_elf32_vec,
   1052 
   1053 	&cris_aout_vec,
   1054 	&cris_elf32_vec,
   1055 	&cris_elf32_us_vec,
   1056 
   1057 	&crx_elf32_vec,
   1058 
   1059 	&d10v_elf32_vec,
   1060 	&d30v_elf32_vec,
   1061 
   1062 	&dlx_elf32_be_vec,
   1063 
   1064 	/* This, and other vectors, may not be used in any *.mt configuration.
   1065 	   But that does not mean they are unnecessary.  If configured with
   1066 	   --enable-targets=all, objdump or gdb should be able to examine
   1067 	   the file even if we don't recognize the machine type.  */
   1068 	&elf32_be_vec,
   1069 	&elf32_le_vec,
   1070 #ifdef BFD64
   1071 	&elf64_be_vec,
   1072 	&elf64_le_vec,
   1073 #endif
   1074 
   1075 	&epiphany_elf32_vec,
   1076 
   1077 	&fr30_elf32_vec,
   1078 
   1079 	&frv_elf32_vec,
   1080 	&frv_elf32_fdpic_vec,
   1081 
   1082 	&h8300_coff_vec,
   1083 	&h8300_elf32_vec,
   1084 	&h8300_elf32_linux_vec,
   1085 	&h8500_coff_vec,
   1086 
   1087 	&hppa_elf32_vec,
   1088 	&hppa_elf32_linux_vec,
   1089 	&hppa_elf32_nbsd_vec,
   1090 #ifdef BFD64
   1091 	&hppa_elf64_vec,
   1092 	&hppa_elf64_linux_vec,
   1093 #endif
   1094 	&hppa_som_vec,
   1095 
   1096 	&i370_elf32_vec,
   1097 
   1098 	&i386_aout_vec,
   1099 	&i386_aout_bsd_vec,
   1100 #if 0
   1101 	&i386_aout_dynix_vec,
   1102 #endif
   1103 	&i386_aout_fbsd_vec,
   1104 #if 0
   1105 	/* Since a.out files lack decent magic numbers, no way to recognize
   1106 	   which kind of a.out file it is.  */
   1107 	&i386_aout_linux_vec,
   1108 #endif
   1109 	&i386_aout_lynx_vec,
   1110 #if 0
   1111 	/* No distinguishing features for Mach 3 executables.  */
   1112 	&i386_aout_mach3_vec,
   1113 #endif
   1114 	&i386_aout_nbsd_vec,
   1115 	&i386_aout_os9k_vec,
   1116 	&i386_coff_vec,
   1117 	&i386_coff_go32_vec,
   1118 	&i386_coff_go32stubbed_vec,
   1119 	&i386_coff_lynx_vec,
   1120 	&i386_elf32_vec,
   1121 	&i386_elf32_fbsd_vec,
   1122 	&i386_elf32_nacl_vec,
   1123 	&i386_elf32_sol2_vec,
   1124 	&i386_elf32_vxworks_vec,
   1125 	&i386_mach_o_vec,
   1126 	&i386_msdos_vec,
   1127 	&i386_nlm32_vec,
   1128 	&i386_pe_vec,
   1129 	&i386_pei_vec,
   1130 
   1131 	&iamcu_elf32_vec,
   1132 
   1133 	&i860_coff_vec,
   1134 	&i860_elf32_vec,
   1135 	&i860_elf32_le_vec,
   1136 
   1137 	&i960_elf32_vec,
   1138 
   1139 #ifdef BFD64
   1140 #if 0
   1141 	&ia64_elf32_be_vec,
   1142 #endif
   1143 	&ia64_elf32_hpux_be_vec,
   1144 	&ia64_elf64_be_vec,
   1145 	&ia64_elf64_le_vec,
   1146 	&ia64_elf64_hpux_be_vec,
   1147 	&ia64_elf64_vms_vec,
   1148 	&ia64_pei_vec,
   1149 #endif
   1150 
   1151 	&icoff_be_vec,
   1152 	&icoff_le_vec,
   1153 
   1154 	&ieee_vec,
   1155 
   1156 	&ip2k_elf32_vec,
   1157 	&iq2000_elf32_vec,
   1158 
   1159 #ifdef BFD64
   1160 	&k1om_elf64_vec,
   1161 	&k1om_elf64_fbsd_vec,
   1162 	&l1om_elf64_vec,
   1163 	&l1om_elf64_fbsd_vec,
   1164 #endif
   1165 
   1166 	&lm32_elf32_vec,
   1167 
   1168 	&m32c_elf32_vec,
   1169 
   1170 	&m32r_elf32_vec,
   1171 	&m32r_elf32_le_vec,
   1172 	&m32r_elf32_linux_vec,
   1173 	&m32r_elf32_linux_le_vec,
   1174 
   1175 	&m68hc11_elf32_vec,
   1176 	&m68hc12_elf32_vec,
   1177 
   1178 #if 0
   1179 	&m68k_aout_4knbsd_vec,
   1180 	/* Clashes with sparc_aout_sunos_be_vec magic no.  */
   1181 	&m68k_aout_hp300bsd_vec,
   1182 #endif
   1183 	&m68k_aout_hp300hpux_vec,
   1184 #if 0
   1185 	/* Since a.out files lack decent magic numbers, no way to recognize
   1186 	   which kind of a.out file it is.  */
   1187 	&m68k_aout_linux_vec,
   1188 #endif
   1189 	&m68k_aout_nbsd_vec,
   1190 	&m68k_aout_newsos3_vec,
   1191 	&m68k_coff_vec,
   1192 #if 0
   1193 	&m68k_coff_apollo_vec,
   1194 	&m68k_coff_aux_vec,
   1195 #endif
   1196 	&m68k_coff_sysv_vec,
   1197 	&m68k_coff_un_vec,
   1198 	&m68k_elf32_vec,
   1199 	&m68k_versados_vec,
   1200 
   1201 	&m88k_aout_mach3_vec,
   1202 	&m88k_aout_obsd_vec,
   1203 	&m88k_coff_bcs_vec,
   1204 	&m88k_elf32_vec,
   1205 
   1206 	&mach_o_be_vec,
   1207 	&mach_o_le_vec,
   1208 	&mach_o_fat_vec,
   1209 
   1210 	&mcore_elf32_be_vec,
   1211 	&mcore_elf32_le_vec,
   1212 	&mcore_pe_be_vec,
   1213 	&mcore_pe_le_vec,
   1214 	&mcore_pei_be_vec,
   1215 	&mcore_pei_le_vec,
   1216 
   1217 	&mep_elf32_vec,
   1218 
   1219 	&metag_elf32_vec,
   1220 
   1221 	&microblaze_elf32_vec,
   1222 
   1223 #if 0
   1224 	/* No one seems to use this.  */
   1225 	&mips_aout_be_vec,
   1226 #endif
   1227 	&mips_aout_le_vec,
   1228 	&mips_ecoff_be_vec,
   1229 	&mips_ecoff_le_vec,
   1230 	&mips_ecoff_bele_vec,
   1231 #ifdef BFD64
   1232 	&mips_elf32_be_vec,
   1233 	&mips_elf32_le_vec,
   1234 	&mips_elf32_n_be_vec,
   1235 	&mips_elf32_n_le_vec,
   1236 	&mips_elf32_ntrad_be_vec,
   1237 	&mips_elf32_ntrad_le_vec,
   1238 	&mips_elf32_ntradfbsd_be_vec,
   1239 	&mips_elf32_ntradfbsd_le_vec,
   1240 	&mips_elf32_trad_be_vec,
   1241 	&mips_elf32_trad_le_vec,
   1242 	&mips_elf32_tradfbsd_be_vec,
   1243 	&mips_elf32_tradfbsd_le_vec,
   1244 	&mips_elf32_vxworks_be_vec,
   1245 	&mips_elf32_vxworks_le_vec,
   1246 	&mips_elf64_be_vec,
   1247 	&mips_elf64_le_vec,
   1248 	&mips_elf64_trad_be_vec,
   1249 	&mips_elf64_trad_le_vec,
   1250 	&mips_elf64_tradfbsd_be_vec,
   1251 	&mips_elf64_tradfbsd_le_vec,
   1252 #endif
   1253 	&mips_pe_le_vec,
   1254 	&mips_pei_le_vec,
   1255 
   1256 #ifdef BFD64
   1257 	&mmix_elf64_vec,
   1258 	&mmix_mmo_vec,
   1259 #endif
   1260 
   1261 	&mn10200_elf32_vec,
   1262 	&mn10300_elf32_vec,
   1263 
   1264 	&moxie_elf32_be_vec,
   1265 	&moxie_elf32_le_vec,
   1266 
   1267 	&msp430_elf32_vec,
   1268 	&msp430_elf32_ti_vec,
   1269 
   1270 	&mt_elf32_vec,
   1271 
   1272 	&nds32_elf32_be_vec,
   1273 	&nds32_elf32_le_vec,
   1274 	&nds32_elf32_linux_be_vec,
   1275 	&nds32_elf32_linux_le_vec,
   1276 
   1277 	&nios2_elf32_be_vec,
   1278 	&nios2_elf32_le_vec,
   1279 
   1280 	&ns32k_aout_pc532mach_vec,
   1281 	&ns32k_aout_pc532nbsd_vec,
   1282 
   1283 #if 0
   1284 	/* We have no oasys tools anymore, so we can't test any of this
   1285 	   anymore. If you want to test the stuff yourself, go ahead...
   1286 	   steve (at) cygnus.com
   1287 	   Worse, since there is no magic number for archives, there
   1288 	   can be annoying target mis-matches.  */
   1289 	&oasys_vec,
   1290 #endif
   1291 
   1292 	&or1k_elf32_vec,
   1293 
   1294 	&pdp11_aout_vec,
   1295 
   1296 	&pef_vec,
   1297 	&pef_xlib_vec,
   1298 
   1299 	&pj_elf32_vec,
   1300 	&pj_elf32_le_vec,
   1301 
   1302 #if BFD_SUPPORTS_PLUGINS
   1303 	&plugin_vec,
   1304 #endif
   1305 
   1306 	&powerpc_boot_vec,
   1307 	&powerpc_elf32_vec,
   1308 	&powerpc_elf32_le_vec,
   1309 	&powerpc_elf32_fbsd_vec,
   1310 	&powerpc_elf32_vxworks_vec,
   1311 #ifdef BFD64
   1312 	&powerpc_elf64_vec,
   1313 	&powerpc_elf64_le_vec,
   1314 	&powerpc_elf64_fbsd_vec,
   1315 #endif
   1316 	&powerpc_nlm32_vec,
   1317 	&powerpc_pe_vec,
   1318 	&powerpc_pe_le_vec,
   1319 	&powerpc_pei_vec,
   1320 	&powerpc_pei_le_vec,
   1321 #if 0
   1322 	/* This has the same magic number as RS/6000.  */
   1323 	&powerpc_xcoff_vec,
   1324 #endif
   1325 
   1326 	&pru_elf32_vec,
   1327 
   1328 #ifdef BFD64
   1329 	&riscv_elf32_vec,
   1330 	&riscv_elf64_vec,
   1331 #endif
   1332 	&rl78_elf32_vec,
   1333 
   1334 #ifdef BFD64
   1335 	&rs6000_xcoff64_vec,
   1336 	&rs6000_xcoff64_aix_vec,
   1337 #endif
   1338 	&rs6000_xcoff_vec,
   1339 
   1340 	&rx_elf32_be_vec,
   1341 	&rx_elf32_be_ns_vec,
   1342 	&rx_elf32_le_vec,
   1343 
   1344 	&s390_elf32_vec,
   1345 #ifdef BFD64
   1346 	&s390_elf64_vec,
   1347 #endif
   1348 
   1349 #ifdef BFD64
   1350 	&score_elf32_be_vec,
   1351 	&score_elf32_le_vec,
   1352 #endif
   1353 
   1354 #ifdef BFD64
   1355 	&sh64_elf32_vec,
   1356 	&sh64_elf32_le_vec,
   1357 	&sh64_elf32_linux_vec,
   1358 	&sh64_elf32_linux_be_vec,
   1359 	&sh64_elf32_nbsd_vec,
   1360 	&sh64_elf32_nbsd_le_vec,
   1361 	&sh64_elf64_vec,
   1362 	&sh64_elf64_le_vec,
   1363 	&sh64_elf64_linux_vec,
   1364 	&sh64_elf64_linux_be_vec,
   1365 	&sh64_elf64_nbsd_vec,
   1366 	&sh64_elf64_nbsd_le_vec,
   1367 #endif
   1368 	&sh_coff_vec,
   1369 	&sh_coff_le_vec,
   1370 	&sh_coff_small_vec,
   1371 	&sh_coff_small_le_vec,
   1372 	&sh_elf32_vec,
   1373 	&sh_elf32_le_vec,
   1374 	&sh_elf32_fdpic_be_vec,
   1375 	&sh_elf32_fdpic_le_vec,
   1376 	&sh_elf32_linux_vec,
   1377 	&sh_elf32_linux_be_vec,
   1378 	&sh_elf32_nbsd_vec,
   1379 	&sh_elf32_nbsd_le_vec,
   1380 	&sh_elf32_symbian_le_vec,
   1381 	&sh_elf32_vxworks_vec,
   1382 	&sh_elf32_vxworks_le_vec,
   1383 	&sh_pe_le_vec,
   1384 	&sh_pei_le_vec,
   1385 
   1386 	&sparc_aout_le_vec,
   1387 	&sparc_aout_linux_vec,
   1388 	&sparc_aout_lynx_vec,
   1389 	&sparc_aout_nbsd_vec,
   1390 	&sparc_aout_sunos_be_vec,
   1391 	&sparc_coff_vec,
   1392 	&sparc_coff_lynx_vec,
   1393 	&sparc_elf32_vec,
   1394 	&sparc_elf32_sol2_vec,
   1395 	&sparc_elf32_vxworks_vec,
   1396 #ifdef BFD64
   1397 	&sparc_elf64_vec,
   1398 	&sparc_elf64_fbsd_vec,
   1399 	&sparc_elf64_sol2_vec,
   1400 #endif
   1401 	&sparc_nlm32_vec,
   1402 
   1403 	&spu_elf32_vec,
   1404 
   1405 	&sym_vec,
   1406 
   1407 	&tic30_aout_vec,
   1408 	&tic30_coff_vec,
   1409 	&tic54x_coff0_beh_vec,
   1410 	&tic54x_coff0_vec,
   1411 	&tic54x_coff1_beh_vec,
   1412 	&tic54x_coff1_vec,
   1413 	&tic54x_coff2_beh_vec,
   1414 	&tic54x_coff2_vec,
   1415 	&tic6x_elf32_be_vec,
   1416 	&tic6x_elf32_le_vec,
   1417 	&tic80_coff_vec,
   1418 
   1419 	&tilegx_elf32_be_vec,
   1420 	&tilegx_elf32_le_vec,
   1421 #ifdef BFD64
   1422 	&tilegx_elf64_be_vec,
   1423 	&tilegx_elf64_le_vec,
   1424 #endif
   1425 	&tilepro_elf32_vec,
   1426 
   1427 	&ft32_elf32_vec,
   1428 
   1429 	&v800_elf32_vec,
   1430 	&v850_elf32_vec,
   1431 
   1432 	&vax_aout_1knbsd_vec,
   1433 	&vax_aout_bsd_vec,
   1434 	&vax_aout_nbsd_vec,
   1435 	&vax_elf32_vec,
   1436 
   1437 	&visium_elf32_vec,
   1438 
   1439 	&w65_coff_vec,
   1440 
   1441 	&wasm_vec,
   1442 	&wasm32_elf32_vec,
   1443 
   1444 	&we32k_coff_vec,
   1445 
   1446 #ifdef BFD64
   1447 	&x86_64_coff_vec,
   1448 	&x86_64_elf32_vec,
   1449 	&x86_64_elf32_nacl_vec,
   1450 	&x86_64_elf64_vec,
   1451 	&x86_64_elf64_cloudabi_vec,
   1452 	&x86_64_elf64_fbsd_vec,
   1453 	&x86_64_elf64_nacl_vec,
   1454 	&x86_64_elf64_sol2_vec,
   1455 	&x86_64_mach_o_vec,
   1456 	&x86_64_pe_vec,
   1457 	&x86_64_pe_be_vec,
   1458 	&x86_64_pei_vec,
   1459 #endif
   1460 
   1461 	&xc16x_elf32_vec,
   1462 
   1463 	&xgate_elf32_vec,
   1464 
   1465 	&xstormy16_elf32_vec,
   1466 
   1467 	&xtensa_elf32_be_vec,
   1468 	&xtensa_elf32_le_vec,
   1469 
   1470 	&z80_coff_vec,
   1471 
   1472 	&z8k_coff_vec,
   1473 #endif /* not SELECT_VECS */
   1474 
   1475 /* Always support S-records, for convenience.  */
   1476 	&srec_vec,
   1477 	&symbolsrec_vec,
   1478 /* And verilog.  */
   1479 	&verilog_vec,
   1480 /* And tekhex */
   1481 	&tekhex_vec,
   1482 /* Likewise for binary output.  */
   1483 	&binary_vec,
   1484 /* Likewise for ihex.  */
   1485 	&ihex_vec,
   1486 
   1487 /* Add any required traditional-core-file-handler.  */
   1488 
   1489 #ifdef AIX386_CORE
   1490 	&core_aix386_vec,
   1491 #endif
   1492 #if 0
   1493 	/* We don't include cisco_core_*_vec.  Although it has a magic number,
   1494 	   the magic number isn't at the beginning of the file, and thus
   1495 	   might spuriously match other kinds of files.  */
   1496 	&core_cisco_be_vec,
   1497 	&core_cisco_le_vec,
   1498 #endif
   1499 #ifdef HPPABSD_CORE
   1500 	&core_hppabsd_vec,
   1501 #endif
   1502 #ifdef HPUX_CORE
   1503 	&core_hpux_vec,
   1504 #endif
   1505 #ifdef IRIX_CORE
   1506 	&core_irix_vec,
   1507 #endif
   1508 #ifdef NETBSD_CORE
   1509 	&core_netbsd_vec,
   1510 #endif
   1511 #ifdef OSF_CORE
   1512 	&core_osf_vec,
   1513 #endif
   1514 #ifdef PTRACE_CORE
   1515 	&core_ptrace_vec,
   1516 #endif
   1517 #ifdef SCO5_CORE
   1518 	&core_sco5_vec,
   1519 #endif
   1520 #ifdef TRAD_CORE
   1521 	&core_trad_vec,
   1522 #endif
   1523 
   1524 	NULL /* end of list marker */
   1525 };
   1526 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
   1527 
   1528 /* bfd_default_vector[0] contains either the address of the default vector,
   1529    if there is one, or zero if there isn't.  */
   1530 
   1531 const bfd_target *bfd_default_vector[] = {
   1532 #ifdef DEFAULT_VECTOR
   1533 	&DEFAULT_VECTOR,
   1534 #endif
   1535 	NULL
   1536 };
   1537 
   1538 /* bfd_associated_vector[] contains the associated target vectors used
   1539    to reduce the ambiguity in bfd_check_format_matches.  */
   1540 
   1541 static const bfd_target *_bfd_associated_vector[] = {
   1542 #ifdef ASSOCIATED_VECS
   1543 	ASSOCIATED_VECS,
   1544 #endif
   1545 	NULL
   1546 };
   1547 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
   1548 
   1549 /* When there is an ambiguous match, bfd_check_format_matches puts the
   1550    names of the matching targets in an array.  This variable is the maximum
   1551    number of entries that the array could possibly need.  */
   1552 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
   1553 
   1554 /* This array maps configuration triplets onto BFD vectors.  */
   1556 
   1557 struct targmatch
   1558 {
   1559   /* The configuration triplet.  */
   1560   const char *triplet;
   1561   /* The BFD vector.  If this is NULL, then the vector is found by
   1562      searching forward for the next structure with a non NULL vector
   1563      field.  */
   1564   const bfd_target *vector;
   1565 };
   1566 
   1567 /* targmatch.h is built by Makefile out of config.bfd.  */
   1568 static const struct targmatch bfd_target_match[] = {
   1569 #include "targmatch.h"
   1570   { NULL, NULL }
   1571 };
   1572 
   1573 /* Find a target vector, given a name or configuration triplet.  */
   1574 
   1575 static const bfd_target *
   1576 find_target (const char *name)
   1577 {
   1578   const bfd_target * const *target;
   1579   const struct targmatch *match;
   1580 
   1581   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1582     if (strcmp (name, (*target)->name) == 0)
   1583       return *target;
   1584 
   1585   /* If we couldn't match on the exact name, try matching on the
   1586      configuration triplet.  FIXME: We should run the triplet through
   1587      config.sub first, but that is hard.  */
   1588   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
   1589     {
   1590       if (fnmatch (match->triplet, name, 0) == 0)
   1591 	{
   1592 	  while (match->vector == NULL)
   1593 	    ++match;
   1594 	  return match->vector;
   1595 	}
   1596     }
   1597 
   1598   bfd_set_error (bfd_error_invalid_target);
   1599   return NULL;
   1600 }
   1601 
   1602 /*
   1603 FUNCTION
   1604 	bfd_set_default_target
   1605 
   1606 SYNOPSIS
   1607 	bfd_boolean bfd_set_default_target (const char *name);
   1608 
   1609 DESCRIPTION
   1610 	Set the default target vector to use when recognizing a BFD.
   1611 	This takes the name of the target, which may be a BFD target
   1612 	name or a configuration triplet.
   1613 */
   1614 
   1615 bfd_boolean
   1616 bfd_set_default_target (const char *name)
   1617 {
   1618   const bfd_target *target;
   1619 
   1620   if (bfd_default_vector[0] != NULL
   1621       && strcmp (name, bfd_default_vector[0]->name) == 0)
   1622     return TRUE;
   1623 
   1624   target = find_target (name);
   1625   if (target == NULL)
   1626     return FALSE;
   1627 
   1628   bfd_default_vector[0] = target;
   1629   return TRUE;
   1630 }
   1631 
   1632 /*
   1633 FUNCTION
   1634 	bfd_find_target
   1635 
   1636 SYNOPSIS
   1637 	const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
   1638 
   1639 DESCRIPTION
   1640 	Return a pointer to the transfer vector for the object target
   1641 	named @var{target_name}.  If @var{target_name} is <<NULL>>,
   1642 	choose the one in the environment variable <<GNUTARGET>>; if
   1643 	that is null or not defined, then choose the first entry in the
   1644 	target list.  Passing in the string "default" or setting the
   1645 	environment variable to "default" will cause the first entry in
   1646 	the target list to be returned, and "target_defaulted" will be
   1647 	set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
   1648 	<<bfd_check_format>> to loop over all the targets to find the
   1649 	one that matches the file being read.
   1650 */
   1651 
   1652 const bfd_target *
   1653 bfd_find_target (const char *target_name, bfd *abfd)
   1654 {
   1655   const char *targname;
   1656   const bfd_target *target;
   1657 
   1658   if (target_name != NULL)
   1659     targname = target_name;
   1660   else
   1661     targname = getenv ("GNUTARGET");
   1662 
   1663   /* This is safe; the vector cannot be null.  */
   1664   if (targname == NULL || strcmp (targname, "default") == 0)
   1665     {
   1666       if (bfd_default_vector[0] != NULL)
   1667 	target = bfd_default_vector[0];
   1668       else
   1669 	target = bfd_target_vector[0];
   1670       if (abfd)
   1671 	{
   1672 	  abfd->xvec = target;
   1673 	  abfd->target_defaulted = TRUE;
   1674 	}
   1675       return target;
   1676     }
   1677 
   1678   if (abfd)
   1679     abfd->target_defaulted = FALSE;
   1680 
   1681   target = find_target (targname);
   1682   if (target == NULL)
   1683     return NULL;
   1684 
   1685   if (abfd)
   1686     abfd->xvec = target;
   1687   return target;
   1688 }
   1689 
   1690 /* Helper function for bfd_get_target_info to determine the target's
   1691    architecture.  This method handles bfd internal target names as
   1692    tuples and triplets.  */
   1693 static bfd_boolean
   1694 _bfd_find_arch_match (const char *tname, const char **arch,
   1695 		      const char **def_target_arch)
   1696 {
   1697   if (!arch)
   1698     return FALSE;
   1699 
   1700   while (*arch != NULL)
   1701     {
   1702       const char *in_a = strstr (*arch, tname);
   1703       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
   1704 
   1705       if (in_a && (in_a == *arch || in_a[-1] == ':')
   1706 	  && end_ch == 0)
   1707 	{
   1708 	  *def_target_arch = *arch;
   1709 	  return TRUE;
   1710 	}
   1711       arch++;
   1712     }
   1713   return FALSE;
   1714 }
   1715 
   1716 /*
   1717 FUNCTION
   1718 	bfd_get_target_info
   1719 SYNOPSIS
   1720 	const bfd_target *bfd_get_target_info (const char *target_name,
   1721 					       bfd *abfd,
   1722 					       bfd_boolean *is_bigendian,
   1723 					       int *underscoring,
   1724 					       const char **def_target_arch);
   1725 DESCRIPTION
   1726 	Return a pointer to the transfer vector for the object target
   1727 	named @var{target_name}.  If @var{target_name} is <<NULL>>,
   1728 	choose the one in the environment variable <<GNUTARGET>>; if
   1729 	that is null or not defined, then choose the first entry in the
   1730 	target list.  Passing in the string "default" or setting the
   1731 	environment variable to "default" will cause the first entry in
   1732 	the target list to be returned, and "target_defaulted" will be
   1733 	set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
   1734 	<<bfd_check_format>> to loop over all the targets to find the
   1735 	one that matches the file being read.
   1736 	If @var{is_bigendian} is not <<NULL>>, then set this value to target's
   1737 	endian mode. True for big-endian, FALSE for little-endian or for
   1738 	invalid target.
   1739 	If @var{underscoring} is not <<NULL>>, then set this value to target's
   1740 	underscoring mode. Zero for none-underscoring, -1 for invalid target,
   1741 	else the value of target vector's symbol underscoring.
   1742 	If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
   1743 	string specified by the target_name.
   1744 */
   1745 const bfd_target *
   1746 bfd_get_target_info (const char *target_name, bfd *abfd,
   1747 		     bfd_boolean *is_bigendian,
   1748 		     int *underscoring, const char **def_target_arch)
   1749 {
   1750   const bfd_target *target_vec;
   1751 
   1752   if (is_bigendian)
   1753     *is_bigendian = FALSE;
   1754   if (underscoring)
   1755     *underscoring = -1;
   1756   if (def_target_arch)
   1757     *def_target_arch = NULL;
   1758   target_vec = bfd_find_target (target_name, abfd);
   1759   if (! target_vec)
   1760     return NULL;
   1761   if (is_bigendian)
   1762     *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
   1763 							       : FALSE);
   1764   if (underscoring)
   1765     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
   1766 
   1767   if (def_target_arch)
   1768     {
   1769       const char *tname = target_vec->name;
   1770       const char **arches = bfd_arch_list ();
   1771 
   1772       if (arches && tname)
   1773 	{
   1774 	  char *hyp = strchr (tname, '-');
   1775 
   1776 	  if (hyp != NULL)
   1777 	    {
   1778 	      tname = ++hyp;
   1779 
   1780 	      /* Make sure we detect architecture names
   1781 		 for triplets like "pe-arm-wince-little".  */
   1782 	      if (!_bfd_find_arch_match (tname, arches, def_target_arch))
   1783 		{
   1784 		  char new_tname[50];
   1785 
   1786 		  strcpy (new_tname, hyp);
   1787 		  while ((hyp = strrchr (new_tname, '-')) != NULL)
   1788 		    {
   1789 		      *hyp = 0;
   1790 		      if (_bfd_find_arch_match (new_tname, arches,
   1791 						def_target_arch))
   1792 			break;
   1793 		    }
   1794 		}
   1795 	    }
   1796 	  else
   1797 	    _bfd_find_arch_match (tname, arches, def_target_arch);
   1798 	}
   1799 
   1800       if (arches)
   1801 	free (arches);
   1802     }
   1803   return target_vec;
   1804 }
   1805 
   1806 /*
   1807 FUNCTION
   1808 	bfd_target_list
   1809 
   1810 SYNOPSIS
   1811 	const char ** bfd_target_list (void);
   1812 
   1813 DESCRIPTION
   1814 	Return a freshly malloced NULL-terminated
   1815 	vector of the names of all the valid BFD targets. Do not
   1816 	modify the names.
   1817 
   1818 */
   1819 
   1820 const char **
   1821 bfd_target_list (void)
   1822 {
   1823   int vec_length = 0;
   1824   bfd_size_type amt;
   1825   const bfd_target * const *target;
   1826   const  char **name_list, **name_ptr;
   1827 
   1828   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1829     vec_length++;
   1830 
   1831   amt = (vec_length + 1) * sizeof (char **);
   1832   name_ptr = name_list = (const  char **) bfd_malloc (amt);
   1833 
   1834   if (name_list == NULL)
   1835     return NULL;
   1836 
   1837   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1838     if (target == &bfd_target_vector[0]
   1839 	|| *target != bfd_target_vector[0])
   1840       *name_ptr++ = (*target)->name;
   1841 
   1842   *name_ptr = NULL;
   1843   return name_list;
   1844 }
   1845 
   1846 /*
   1847 FUNCTION
   1848 	bfd_iterate_over_targets
   1849 
   1850 SYNOPSIS
   1851 	const bfd_target *bfd_iterate_over_targets
   1852 	  (int (*func) (const bfd_target *, void *),
   1853 	   void *data);
   1854 
   1855 DESCRIPTION
   1856 	Call @var{func} for each target in the list of BFD target
   1857 	vectors, passing @var{data} to @var{func}.  Stop iterating if
   1858 	@var{func} returns a non-zero result, and return that target
   1859 	vector.  Return NULL if @var{func} always returns zero.
   1860 */
   1861 
   1862 const bfd_target *
   1863 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
   1864 			  void *data)
   1865 {
   1866   const bfd_target *const *target;
   1867 
   1868   for (target = bfd_target_vector; *target != NULL; ++target)
   1869     if (func (*target, data))
   1870       return *target;
   1871 
   1872   return NULL;
   1873 }
   1874 
   1875 /*
   1876 FUNCTION
   1877 	bfd_flavour_name
   1878 
   1879 SYNOPSIS
   1880 	const char *bfd_flavour_name (enum bfd_flavour flavour);
   1881 
   1882 DESCRIPTION
   1883 	Return the string form of @var{flavour}.
   1884 */
   1885 
   1886 const char *
   1887 bfd_flavour_name (enum bfd_flavour flavour)
   1888 {
   1889   switch (flavour)
   1890     {
   1891     case bfd_target_unknown_flavour: return "unknown file format";
   1892     case bfd_target_aout_flavour: return "a.out";
   1893     case bfd_target_coff_flavour: return "COFF";
   1894     case bfd_target_ecoff_flavour: return "ECOFF";
   1895     case bfd_target_xcoff_flavour: return "XCOFF";
   1896     case bfd_target_elf_flavour: return "ELF";
   1897     case bfd_target_ieee_flavour: return "IEEE";
   1898     case bfd_target_nlm_flavour: return "NLM";
   1899     case bfd_target_oasys_flavour: return "Oasys";
   1900     case bfd_target_tekhex_flavour: return "Tekhex";
   1901     case bfd_target_srec_flavour: return "Srec";
   1902     case bfd_target_verilog_flavour: return "Verilog";
   1903     case bfd_target_ihex_flavour: return "Ihex";
   1904     case bfd_target_som_flavour: return "SOM";
   1905     case bfd_target_os9k_flavour: return "OS9K";
   1906     case bfd_target_versados_flavour: return "Versados";
   1907     case bfd_target_msdos_flavour: return "MSDOS";
   1908     case bfd_target_ovax_flavour: return "Ovax";
   1909     case bfd_target_evax_flavour: return "Evax";
   1910     case bfd_target_mmo_flavour: return "mmo";
   1911     case bfd_target_mach_o_flavour: return "MACH_O";
   1912     case bfd_target_pef_flavour: return "PEF";
   1913     case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
   1914     case bfd_target_sym_flavour: return "SYM";
   1915     /* There is no "default" case here so that -Wswitch (part of -Wall)
   1916        catches missing entries.  */
   1917     }
   1918 
   1919   abort ();
   1920 }
   1921