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targets.c revision 1.7
      1 /* Generic target-file-type support for the BFD library.
      2    Copyright (C) 1990-2017 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 *(*_bfd_check_format[bfd_type_end]) (bfd *);
    248 .
    249 .  {* Set the format of a file being written.  *}
    250 .  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
    251 .
    252 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
    253 .  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
    254 .
    255 The general target vector.  These vectors are initialized using the
    256 BFD_JUMP_TABLE macros.
    257 .
    258 .  {* Generic entry points.  *}
    259 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
    260 .  NAME##_close_and_cleanup, \
    261 .  NAME##_bfd_free_cached_info, \
    262 .  NAME##_new_section_hook, \
    263 .  NAME##_get_section_contents, \
    264 .  NAME##_get_section_contents_in_window
    265 .
    266 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
    267 .  bfd_boolean (*_close_and_cleanup) (bfd *);
    268 .  {* Ask the BFD to free all cached information.  *}
    269 .  bfd_boolean (*_bfd_free_cached_info) (bfd *);
    270 .  {* Called when a new section is created.  *}
    271 .  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
    272 .  {* Read the contents of a section.  *}
    273 .  bfd_boolean (*_bfd_get_section_contents)
    274 .    (bfd *, sec_ptr, void *, file_ptr, bfd_size_type);
    275 .  bfd_boolean (*_bfd_get_section_contents_in_window)
    276 .    (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type);
    277 .
    278 .  {* Entry points to copy private data.  *}
    279 .#define BFD_JUMP_TABLE_COPY(NAME) \
    280 .  NAME##_bfd_copy_private_bfd_data, \
    281 .  NAME##_bfd_merge_private_bfd_data, \
    282 .  _bfd_generic_init_private_section_data, \
    283 .  NAME##_bfd_copy_private_section_data, \
    284 .  NAME##_bfd_copy_private_symbol_data, \
    285 .  NAME##_bfd_copy_private_header_data, \
    286 .  NAME##_bfd_set_private_flags, \
    287 .  NAME##_bfd_print_private_bfd_data
    288 .
    289 .  {* Called to copy BFD general private data from one object file
    290 .     to another.  *}
    291 .  bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
    292 .  {* Called to merge BFD general private data from one object file
    293 .     to a common output file when linking.  *}
    294 .  bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *);
    295 .  {* Called to initialize BFD private section data from one object file
    296 .     to another.  *}
    297 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
    298 .  BFD_SEND (obfd, _bfd_init_private_section_data, (ibfd, isec, obfd, osec, link_info))
    299 .  bfd_boolean (*_bfd_init_private_section_data)
    300 .    (bfd *, sec_ptr, bfd *, sec_ptr, struct bfd_link_info *);
    301 .  {* Called to copy BFD private section data from one object file
    302 .     to another.  *}
    303 .  bfd_boolean (*_bfd_copy_private_section_data)
    304 .    (bfd *, sec_ptr, bfd *, sec_ptr);
    305 .  {* Called to copy BFD private symbol data from one symbol
    306 .     to another.  *}
    307 .  bfd_boolean (*_bfd_copy_private_symbol_data)
    308 .    (bfd *, asymbol *, bfd *, asymbol *);
    309 .  {* Called to copy BFD private header data from one object file
    310 .     to another.  *}
    311 .  bfd_boolean (*_bfd_copy_private_header_data)
    312 .    (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)
    348 .    (bfd *, char **, bfd_size_type *, const char **);
    349 .  void        (*_bfd_truncate_arname) (bfd *, const char *, char *);
    350 .  bfd_boolean (*write_armap)
    351 .    (bfd *, unsigned int, struct orl *, unsigned int, int);
    352 .  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
    353 .  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
    354 .  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
    355 .#define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
    356 .  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
    357 .  int         (*_bfd_stat_arch_elt) (bfd *, struct stat *);
    358 .  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
    359 .
    360 .  {* Entry points used for symbols.  *}
    361 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
    362 .  NAME##_get_symtab_upper_bound, \
    363 .  NAME##_canonicalize_symtab, \
    364 .  NAME##_make_empty_symbol, \
    365 .  NAME##_print_symbol, \
    366 .  NAME##_get_symbol_info, \
    367 .  NAME##_get_symbol_version_string, \
    368 .  NAME##_bfd_is_local_label_name, \
    369 .  NAME##_bfd_is_target_special_symbol, \
    370 .  NAME##_get_lineno, \
    371 .  NAME##_find_nearest_line, \
    372 .  NAME##_find_line, \
    373 .  NAME##_find_inliner_info, \
    374 .  NAME##_bfd_make_debug_symbol, \
    375 .  NAME##_read_minisymbols, \
    376 .  NAME##_minisymbol_to_symbol
    377 .
    378 .  long        (*_bfd_get_symtab_upper_bound) (bfd *);
    379 .  long        (*_bfd_canonicalize_symtab)
    380 .    (bfd *, struct bfd_symbol **);
    381 .  struct bfd_symbol *
    382 .              (*_bfd_make_empty_symbol) (bfd *);
    383 .  void        (*_bfd_print_symbol)
    384 .    (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type);
    385 .#define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
    386 .  void        (*_bfd_get_symbol_info)
    387 .    (bfd *, struct bfd_symbol *, symbol_info *);
    388 .#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
    389 .  const char *(*_bfd_get_symbol_version_string)
    390 .    (bfd *, struct bfd_symbol *, bfd_boolean *);
    391 .#define bfd_get_symbol_version_string(b,s,h) BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h))
    392 .  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
    393 .  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
    394 .  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
    395 .  bfd_boolean (*_bfd_find_nearest_line)
    396 .    (bfd *, struct bfd_symbol **, struct bfd_section *, bfd_vma,
    397 .     const char **, const char **, unsigned int *, unsigned int *);
    398 .  bfd_boolean (*_bfd_find_line)
    399 .    (bfd *, struct bfd_symbol **, struct bfd_symbol *,
    400 .     const char **, unsigned int *);
    401 .  bfd_boolean (*_bfd_find_inliner_info)
    402 .    (bfd *, const char **, const char **, unsigned int *);
    403 . {* Back-door to allow format-aware applications to create debug symbols
    404 .    while using BFD for everything else.  Currently used by the assembler
    405 .    when creating COFF files.  *}
    406 .  asymbol *   (*_bfd_make_debug_symbol)
    407 .    (bfd *, void *, unsigned long size);
    408 .#define bfd_read_minisymbols(b, d, m, s) \
    409 .  BFD_SEND (b, _read_minisymbols, (b, d, m, s))
    410 .  long        (*_read_minisymbols)
    411 .    (bfd *, bfd_boolean, void **, unsigned int *);
    412 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
    413 .  BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
    414 .  asymbol *   (*_minisymbol_to_symbol)
    415 .    (bfd *, bfd_boolean, const void *, asymbol *);
    416 .
    417 .  {* Routines for relocs.  *}
    418 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
    419 .  NAME##_get_reloc_upper_bound, \
    420 .  NAME##_canonicalize_reloc, \
    421 .  NAME##_bfd_reloc_type_lookup, \
    422 .  NAME##_bfd_reloc_name_lookup
    423 .
    424 .  long        (*_get_reloc_upper_bound) (bfd *, sec_ptr);
    425 .  long        (*_bfd_canonicalize_reloc)
    426 .    (bfd *, sec_ptr, arelent **, struct bfd_symbol **);
    427 .  {* See documentation on reloc types.  *}
    428 .  reloc_howto_type *
    429 .              (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
    430 .  reloc_howto_type *
    431 .              (*reloc_name_lookup) (bfd *, const char *);
    432 .
    433 .
    434 .  {* Routines used when writing an object file.  *}
    435 .#define BFD_JUMP_TABLE_WRITE(NAME) \
    436 .  NAME##_set_arch_mach, \
    437 .  NAME##_set_section_contents
    438 .
    439 .  bfd_boolean (*_bfd_set_arch_mach)
    440 .    (bfd *, enum bfd_architecture, unsigned long);
    441 .  bfd_boolean (*_bfd_set_section_contents)
    442 .    (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type);
    443 .
    444 .  {* Routines used by the linker.  *}
    445 .#define BFD_JUMP_TABLE_LINK(NAME) \
    446 .  NAME##_sizeof_headers, \
    447 .  NAME##_bfd_get_relocated_section_contents, \
    448 .  NAME##_bfd_relax_section, \
    449 .  NAME##_bfd_link_hash_table_create, \
    450 .  NAME##_bfd_link_add_symbols, \
    451 .  NAME##_bfd_link_just_syms, \
    452 .  NAME##_bfd_copy_link_hash_symbol_type, \
    453 .  NAME##_bfd_final_link, \
    454 .  NAME##_bfd_link_split_section, \
    455 .  NAME##_bfd_link_check_relocs, \
    456 .  NAME##_bfd_gc_sections, \
    457 .  NAME##_bfd_lookup_section_flags, \
    458 .  NAME##_bfd_merge_sections, \
    459 .  NAME##_bfd_is_group_section, \
    460 .  NAME##_bfd_discard_group, \
    461 .  NAME##_section_already_linked, \
    462 .  NAME##_bfd_define_common_symbol
    463 .
    464 .  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
    465 .  bfd_byte *  (*_bfd_get_relocated_section_contents)
    466 .    (bfd *, struct bfd_link_info *, struct bfd_link_order *,
    467 .     bfd_byte *, bfd_boolean, struct bfd_symbol **);
    468 .
    469 .  bfd_boolean (*_bfd_relax_section)
    470 .    (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
    471 .
    472 .  {* Create a hash table for the linker.  Different backends store
    473 .     different information in this table.  *}
    474 .  struct bfd_link_hash_table *
    475 .              (*_bfd_link_hash_table_create) (bfd *);
    476 .
    477 .  {* Add symbols from this object file into the hash table.  *}
    478 .  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
    479 .
    480 .  {* Indicate that we are only retrieving symbol values from this section.  *}
    481 .  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
    482 .
    483 .  {* Copy the symbol type and other attributes for a linker script
    484 .     assignment of one symbol to another.  *}
    485 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
    486 .  BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
    487 .  void (*_bfd_copy_link_hash_symbol_type)
    488 .    (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
    489 .
    490 .  {* Do a link based on the link_order structures attached to each
    491 .     section of the BFD.  *}
    492 .  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
    493 .
    494 .  {* Should this section be split up into smaller pieces during linking.  *}
    495 .  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
    496 .
    497 .  {* Check the relocations in the bfd for validity.  *}
    498 .  bfd_boolean (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
    499 .
    500 .  {* Remove sections that are not referenced from the output.  *}
    501 .  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
    502 .
    503 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
    504 .  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
    505 .					     struct flag_info *,
    506 .					     asection *);
    507 .
    508 .  {* Attempt to merge SEC_MERGE sections.  *}
    509 .  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
    510 .
    511 .  {* Is this section a member of a group?  *}
    512 .  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
    513 .
    514 .  {* Discard members of a group.  *}
    515 .  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
    516 .
    517 .  {* Check if SEC has been already linked during a reloceatable or
    518 .     final link.  *}
    519 .  bfd_boolean (*_section_already_linked) (bfd *, asection *,
    520 .					   struct bfd_link_info *);
    521 .
    522 .  {* Define a common symbol.  *}
    523 .  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
    524 .					     struct bfd_link_hash_entry *);
    525 .
    526 .  {* Routines to handle dynamic symbols and relocs.  *}
    527 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
    528 .  NAME##_get_dynamic_symtab_upper_bound, \
    529 .  NAME##_canonicalize_dynamic_symtab, \
    530 .  NAME##_get_synthetic_symtab, \
    531 .  NAME##_get_dynamic_reloc_upper_bound, \
    532 .  NAME##_canonicalize_dynamic_reloc
    533 .
    534 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
    535 .  long        (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
    536 .  {* Read in the dynamic symbols.  *}
    537 .  long        (*_bfd_canonicalize_dynamic_symtab)
    538 .    (bfd *, struct bfd_symbol **);
    539 .  {* Create synthetized symbols.  *}
    540 .  long        (*_bfd_get_synthetic_symtab)
    541 .    (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **,
    542 .     struct bfd_symbol **);
    543 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
    544 .  long        (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
    545 .  {* Read in the dynamic relocs.  *}
    546 .  long        (*_bfd_canonicalize_dynamic_reloc)
    547 .    (bfd *, arelent **, struct bfd_symbol **);
    548 .
    549 
    550 A pointer to an alternative bfd_target in case the current one is not
    551 satisfactory.  This can happen when the target cpu supports both big
    552 and little endian code, and target chosen by the linker has the wrong
    553 endianness.  The function open_output() in ld/ldlang.c uses this field
    554 to find an alternative output format that is suitable.
    555 
    556 .  {* Opposite endian version of this target.  *}
    557 .  const struct bfd_target * alternative_target;
    558 .
    559 
    560 .  {* Data for use by back-end routines, which isn't
    561 .     generic enough to belong in this structure.  *}
    562 .  const void *backend_data;
    563 .
    564 .} bfd_target;
    565 .
    566 */
    567 
    568 /* All known xvecs (even those that don't compile on all systems).
    569    Alphabetized for easy reference.
    570    They are listed a second time below, since
    571    we can't intermix extern's and initializers.  */
    572 extern const bfd_target aarch64_elf32_be_vec;
    573 extern const bfd_target aarch64_elf32_le_vec;
    574 extern const bfd_target aarch64_elf64_be_vec;
    575 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
    576 extern const bfd_target aarch64_elf64_le_vec;
    577 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
    578 extern const bfd_target aarch64_mach_o_vec;
    579 extern const bfd_target alpha_ecoff_le_vec;
    580 extern const bfd_target alpha_elf64_vec;
    581 extern const bfd_target alpha_elf64_fbsd_vec;
    582 extern const bfd_target alpha_nlm32_vec;
    583 extern const bfd_target alpha_vms_vec;
    584 extern const bfd_target alpha_vms_lib_txt_vec;
    585 extern const bfd_target am33_elf32_linux_vec;
    586 extern const bfd_target aout0_be_vec;
    587 extern const bfd_target aout64_vec;
    588 extern const bfd_target aout_vec;
    589 extern const bfd_target aout_adobe_vec;
    590 extern const bfd_target arc_elf32_be_vec;
    591 extern const bfd_target arc_elf32_le_vec;
    592 extern const bfd_target arm_aout_be_vec;
    593 extern const bfd_target arm_aout_le_vec;
    594 extern const bfd_target arm_aout_nbsd_vec;
    595 extern const bfd_target arm_aout_riscix_vec;
    596 extern const bfd_target arm_coff_be_vec;
    597 extern const bfd_target arm_coff_le_vec;
    598 extern const bfd_target arm_elf32_be_vec;
    599 extern const bfd_target arm_elf32_le_vec;
    600 extern const bfd_target arm_elf32_nacl_be_vec;
    601 extern const bfd_target arm_elf32_nacl_le_vec;
    602 extern const bfd_target arm_elf32_symbian_be_vec;
    603 extern const bfd_target arm_elf32_symbian_le_vec;
    604 extern const bfd_target arm_elf32_vxworks_be_vec;
    605 extern const bfd_target arm_elf32_vxworks_le_vec;
    606 extern const bfd_target arm_mach_o_vec;
    607 extern const bfd_target arm_pe_be_vec;
    608 extern const bfd_target arm_pe_le_vec;
    609 extern const bfd_target arm_pe_epoc_be_vec;
    610 extern const bfd_target arm_pe_epoc_le_vec;
    611 extern const bfd_target arm_pe_wince_be_vec;
    612 extern const bfd_target arm_pe_wince_le_vec;
    613 extern const bfd_target arm_pei_be_vec;
    614 extern const bfd_target arm_pei_le_vec;
    615 extern const bfd_target arm_pei_epoc_be_vec;
    616 extern const bfd_target arm_pei_epoc_le_vec;
    617 extern const bfd_target arm_pei_wince_be_vec;
    618 extern const bfd_target arm_pei_wince_le_vec;
    619 extern const bfd_target avr_elf32_vec;
    620 extern const bfd_target bfin_elf32_vec;
    621 extern const bfd_target bfin_elf32_fdpic_vec;
    622 extern const bfd_target bout_be_vec;
    623 extern const bfd_target bout_le_vec;
    624 extern const bfd_target cr16_elf32_vec;
    625 extern const bfd_target cr16c_elf32_vec;
    626 extern const bfd_target cris_aout_vec;
    627 extern const bfd_target cris_elf32_vec;
    628 extern const bfd_target cris_elf32_us_vec;
    629 extern const bfd_target crx_elf32_vec;
    630 extern const bfd_target d10v_elf32_vec;
    631 extern const bfd_target d30v_elf32_vec;
    632 extern const bfd_target dlx_elf32_be_vec;
    633 extern const bfd_target elf32_be_vec;
    634 extern const bfd_target elf32_le_vec;
    635 extern const bfd_target elf64_be_vec;
    636 extern const bfd_target elf64_le_vec;
    637 extern const bfd_target epiphany_elf32_vec;
    638 extern const bfd_target fr30_elf32_vec;
    639 extern const bfd_target frv_elf32_vec;
    640 extern const bfd_target frv_elf32_fdpic_vec;
    641 extern const bfd_target h8300_coff_vec;
    642 extern const bfd_target h8300_elf32_vec;
    643 extern const bfd_target h8300_elf32_linux_vec;
    644 extern const bfd_target h8500_coff_vec;
    645 extern const bfd_target hppa_elf32_vec;
    646 extern const bfd_target hppa_elf32_linux_vec;
    647 extern const bfd_target hppa_elf32_nbsd_vec;
    648 extern const bfd_target hppa_elf64_vec;
    649 extern const bfd_target hppa_elf64_linux_vec;
    650 extern const bfd_target hppa_som_vec;
    651 extern const bfd_target i370_elf32_vec;
    652 extern const bfd_target i386_aout_vec;
    653 extern const bfd_target i386_aout_bsd_vec;
    654 extern const bfd_target i386_aout_dynix_vec;
    655 extern const bfd_target i386_aout_fbsd_vec;
    656 extern const bfd_target i386_aout_linux_vec;
    657 extern const bfd_target i386_aout_lynx_vec;
    658 extern const bfd_target i386_aout_mach3_vec;
    659 extern const bfd_target i386_aout_nbsd_vec;
    660 extern const bfd_target i386_aout_os9k_vec;
    661 extern const bfd_target i386_coff_vec;
    662 extern const bfd_target i386_coff_go32_vec;
    663 extern const bfd_target i386_coff_go32stubbed_vec;
    664 extern const bfd_target i386_coff_lynx_vec;
    665 extern const bfd_target i386_elf32_vec;
    666 extern const bfd_target i386_elf32_fbsd_vec;
    667 extern const bfd_target i386_elf32_nacl_vec;
    668 extern const bfd_target i386_elf32_sol2_vec;
    669 extern const bfd_target i386_elf32_vxworks_vec;
    670 extern const bfd_target i386_mach_o_vec;
    671 extern const bfd_target i386_msdos_vec;
    672 extern const bfd_target i386_nlm32_vec;
    673 extern const bfd_target i386_pe_vec;
    674 extern const bfd_target i386_pei_vec;
    675 extern const bfd_target iamcu_elf32_vec;
    676 extern const bfd_target i860_coff_vec;
    677 extern const bfd_target i860_elf32_vec;
    678 extern const bfd_target i860_elf32_le_vec;
    679 extern const bfd_target i960_elf32_vec;
    680 extern const bfd_target ia64_elf32_be_vec;
    681 extern const bfd_target ia64_elf32_hpux_be_vec;
    682 extern const bfd_target ia64_elf64_be_vec;
    683 extern const bfd_target ia64_elf64_le_vec;
    684 extern const bfd_target ia64_elf64_hpux_be_vec;
    685 extern const bfd_target ia64_elf64_vms_vec;
    686 extern const bfd_target ia64_pei_vec;
    687 extern const bfd_target icoff_be_vec;
    688 extern const bfd_target icoff_le_vec;
    689 extern const bfd_target ieee_vec;
    690 extern const bfd_target ip2k_elf32_vec;
    691 extern const bfd_target iq2000_elf32_vec;
    692 extern const bfd_target k1om_elf64_vec;
    693 extern const bfd_target k1om_elf64_fbsd_vec;
    694 extern const bfd_target l1om_elf64_vec;
    695 extern const bfd_target l1om_elf64_fbsd_vec;
    696 extern const bfd_target lm32_elf32_vec;
    697 extern const bfd_target lm32_elf32_fdpic_vec;
    698 extern const bfd_target m32c_elf32_vec;
    699 extern const bfd_target m32r_elf32_vec;
    700 extern const bfd_target m32r_elf32_le_vec;
    701 extern const bfd_target m32r_elf32_linux_vec;
    702 extern const bfd_target m32r_elf32_linux_le_vec;
    703 extern const bfd_target m68hc11_elf32_vec;
    704 extern const bfd_target m68hc12_elf32_vec;
    705 extern const bfd_target m68k_aout_4knbsd_vec;
    706 extern const bfd_target m68k_aout_hp300bsd_vec;
    707 extern const bfd_target m68k_aout_hp300hpux_vec;
    708 extern const bfd_target m68k_aout_linux_vec;
    709 extern const bfd_target m68k_aout_nbsd_vec;
    710 extern const bfd_target m68k_aout_newsos3_vec;
    711 extern const bfd_target m68k_coff_vec;
    712 extern const bfd_target m68k_coff_apollo_vec;
    713 extern const bfd_target m68k_coff_aux_vec;
    714 extern const bfd_target m68k_coff_sysv_vec;
    715 extern const bfd_target m68k_coff_un_vec;
    716 extern const bfd_target m68k_elf32_vec;
    717 extern const bfd_target m68k_versados_vec;
    718 extern const bfd_target m88k_aout_mach3_vec;
    719 extern const bfd_target m88k_aout_obsd_vec;
    720 extern const bfd_target m88k_coff_bcs_vec;
    721 extern const bfd_target m88k_elf32_vec;
    722 extern const bfd_target mach_o_be_vec;
    723 extern const bfd_target mach_o_le_vec;
    724 extern const bfd_target mach_o_fat_vec;
    725 extern const bfd_target mcore_elf32_be_vec;
    726 extern const bfd_target mcore_elf32_le_vec;
    727 extern const bfd_target mcore_pe_be_vec;
    728 extern const bfd_target mcore_pe_le_vec;
    729 extern const bfd_target mcore_pei_be_vec;
    730 extern const bfd_target mcore_pei_le_vec;
    731 extern const bfd_target mep_elf32_vec;
    732 extern const bfd_target mep_elf32_le_vec;
    733 extern const bfd_target metag_elf32_vec;
    734 extern const bfd_target microblaze_elf32_vec;
    735 extern const bfd_target microblaze_elf32_le_vec;
    736 extern const bfd_target mips_aout_be_vec;
    737 extern const bfd_target mips_aout_le_vec;
    738 extern const bfd_target mips_ecoff_be_vec;
    739 extern const bfd_target mips_ecoff_le_vec;
    740 extern const bfd_target mips_ecoff_bele_vec;
    741 extern const bfd_target mips_elf32_be_vec;
    742 extern const bfd_target mips_elf32_le_vec;
    743 extern const bfd_target mips_elf32_n_be_vec;
    744 extern const bfd_target mips_elf32_n_le_vec;
    745 extern const bfd_target mips_elf32_ntrad_be_vec;
    746 extern const bfd_target mips_elf32_ntrad_le_vec;
    747 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
    748 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
    749 extern const bfd_target mips_elf32_trad_be_vec;
    750 extern const bfd_target mips_elf32_trad_le_vec;
    751 extern const bfd_target mips_elf32_tradfbsd_be_vec;
    752 extern const bfd_target mips_elf32_tradfbsd_le_vec;
    753 extern const bfd_target mips_elf32_vxworks_be_vec;
    754 extern const bfd_target mips_elf32_vxworks_le_vec;
    755 extern const bfd_target mips_elf64_be_vec;
    756 extern const bfd_target mips_elf64_le_vec;
    757 extern const bfd_target mips_elf64_trad_be_vec;
    758 extern const bfd_target mips_elf64_trad_le_vec;
    759 extern const bfd_target mips_elf64_tradfbsd_be_vec;
    760 extern const bfd_target mips_elf64_tradfbsd_le_vec;
    761 extern const bfd_target mips_pe_le_vec;
    762 extern const bfd_target mips_pei_le_vec;
    763 extern const bfd_target mmix_elf64_vec;
    764 extern const bfd_target mmix_mmo_vec;
    765 extern const bfd_target mn10200_elf32_vec;
    766 extern const bfd_target mn10300_elf32_vec;
    767 extern const bfd_target moxie_elf32_be_vec;
    768 extern const bfd_target moxie_elf32_le_vec;
    769 extern const bfd_target msp430_elf32_vec;
    770 extern const bfd_target msp430_elf32_ti_vec;
    771 extern const bfd_target mt_elf32_vec;
    772 extern const bfd_target nds32_elf32_be_vec;
    773 extern const bfd_target nds32_elf32_le_vec;
    774 extern const bfd_target nds32_elf32_linux_be_vec;
    775 extern const bfd_target nds32_elf32_linux_le_vec;
    776 extern const bfd_target nios2_elf32_be_vec;
    777 extern const bfd_target nios2_elf32_le_vec;
    778 extern const bfd_target ns32k_aout_pc532mach_vec;
    779 extern const bfd_target ns32k_aout_pc532nbsd_vec;
    780 extern const bfd_target oasys_vec;
    781 extern const bfd_target or1k_elf32_vec;
    782 extern const bfd_target pdp11_aout_vec;
    783 extern const bfd_target pef_vec;
    784 extern const bfd_target pef_xlib_vec;
    785 extern const bfd_target pj_elf32_vec;
    786 extern const bfd_target pj_elf32_le_vec;
    787 extern const bfd_target plugin_vec;
    788 extern const bfd_target powerpc_boot_vec;
    789 extern const bfd_target powerpc_elf32_vec;
    790 extern const bfd_target powerpc_elf32_le_vec;
    791 extern const bfd_target powerpc_elf32_fbsd_vec;
    792 extern const bfd_target powerpc_elf32_vxworks_vec;
    793 extern const bfd_target powerpc_elf64_vec;
    794 extern const bfd_target powerpc_elf64_le_vec;
    795 extern const bfd_target powerpc_elf64_fbsd_vec;
    796 extern const bfd_target powerpc_nlm32_vec;
    797 extern const bfd_target powerpc_pe_vec;
    798 extern const bfd_target powerpc_pe_le_vec;
    799 extern const bfd_target powerpc_pei_vec;
    800 extern const bfd_target powerpc_pei_le_vec;
    801 extern const bfd_target powerpc_xcoff_vec;
    802 extern const bfd_target pru_elf32_vec;
    803 extern const bfd_target riscv_elf32_vec;
    804 extern const bfd_target riscv_elf64_vec;
    805 extern const bfd_target rl78_elf32_vec;
    806 extern const bfd_target rs6000_xcoff64_vec;
    807 extern const bfd_target rs6000_xcoff64_aix_vec;
    808 extern const bfd_target rs6000_xcoff_vec;
    809 extern const bfd_target rx_elf32_be_vec;
    810 extern const bfd_target rx_elf32_be_ns_vec;
    811 extern const bfd_target rx_elf32_le_vec;
    812 extern const bfd_target s390_elf32_vec;
    813 extern const bfd_target s390_elf64_vec;
    814 extern const bfd_target score_elf32_be_vec;
    815 extern const bfd_target score_elf32_le_vec;
    816 extern const bfd_target sh64_elf32_vec;
    817 extern const bfd_target sh64_elf32_le_vec;
    818 extern const bfd_target sh64_elf32_linux_vec;
    819 extern const bfd_target sh64_elf32_linux_be_vec;
    820 extern const bfd_target sh64_elf32_nbsd_vec;
    821 extern const bfd_target sh64_elf32_nbsd_le_vec;
    822 extern const bfd_target sh64_elf64_vec;
    823 extern const bfd_target sh64_elf64_le_vec;
    824 extern const bfd_target sh64_elf64_linux_vec;
    825 extern const bfd_target sh64_elf64_linux_be_vec;
    826 extern const bfd_target sh64_elf64_nbsd_vec;
    827 extern const bfd_target sh64_elf64_nbsd_le_vec;
    828 extern const bfd_target sh_coff_vec;
    829 extern const bfd_target sh_coff_le_vec;
    830 extern const bfd_target sh_coff_small_vec;
    831 extern const bfd_target sh_coff_small_le_vec;
    832 extern const bfd_target sh_elf32_vec;
    833 extern const bfd_target sh_elf32_le_vec;
    834 extern const bfd_target sh_elf32_fdpic_be_vec;
    835 extern const bfd_target sh_elf32_fdpic_le_vec;
    836 extern const bfd_target sh_elf32_linux_vec;
    837 extern const bfd_target sh_elf32_linux_be_vec;
    838 extern const bfd_target sh_elf32_nbsd_vec;
    839 extern const bfd_target sh_elf32_nbsd_le_vec;
    840 extern const bfd_target sh_elf32_symbian_le_vec;
    841 extern const bfd_target sh_elf32_vxworks_vec;
    842 extern const bfd_target sh_elf32_vxworks_le_vec;
    843 extern const bfd_target sh_pe_le_vec;
    844 extern const bfd_target sh_pei_le_vec;
    845 extern const bfd_target sparc_aout_le_vec;
    846 extern const bfd_target sparc_aout_linux_vec;
    847 extern const bfd_target sparc_aout_lynx_vec;
    848 extern const bfd_target sparc_aout_nbsd_vec;
    849 extern const bfd_target sparc_aout_sunos_be_vec;
    850 extern const bfd_target sparc_coff_vec;
    851 extern const bfd_target sparc_coff_lynx_vec;
    852 extern const bfd_target sparc_elf32_vec;
    853 extern const bfd_target sparc_elf32_sol2_vec;
    854 extern const bfd_target sparc_elf32_vxworks_vec;
    855 extern const bfd_target sparc_elf64_vec;
    856 extern const bfd_target sparc_elf64_fbsd_vec;
    857 extern const bfd_target sparc_elf64_sol2_vec;
    858 extern const bfd_target sparc_nlm32_vec;
    859 extern const bfd_target spu_elf32_vec;
    860 extern const bfd_target sym_vec;
    861 extern const bfd_target tic30_aout_vec;
    862 extern const bfd_target tic30_coff_vec;
    863 extern const bfd_target tic4x_coff0_vec;
    864 extern const bfd_target tic4x_coff0_beh_vec;
    865 extern const bfd_target tic4x_coff1_vec;
    866 extern const bfd_target tic4x_coff1_beh_vec;
    867 extern const bfd_target tic4x_coff2_vec;
    868 extern const bfd_target tic4x_coff2_beh_vec;
    869 extern const bfd_target tic54x_coff0_vec;
    870 extern const bfd_target tic54x_coff0_beh_vec;
    871 extern const bfd_target tic54x_coff1_vec;
    872 extern const bfd_target tic54x_coff1_beh_vec;
    873 extern const bfd_target tic54x_coff2_vec;
    874 extern const bfd_target tic54x_coff2_beh_vec;
    875 extern const bfd_target tic6x_elf32_be_vec;
    876 extern const bfd_target tic6x_elf32_le_vec;
    877 extern const bfd_target tic6x_elf32_c6000_be_vec;
    878 extern const bfd_target tic6x_elf32_c6000_le_vec;
    879 extern const bfd_target tic6x_elf32_linux_be_vec;
    880 extern const bfd_target tic6x_elf32_linux_le_vec;
    881 extern const bfd_target tic80_coff_vec;
    882 extern const bfd_target tilegx_elf32_be_vec;
    883 extern const bfd_target tilegx_elf32_le_vec;
    884 extern const bfd_target tilegx_elf64_be_vec;
    885 extern const bfd_target tilegx_elf64_le_vec;
    886 extern const bfd_target tilepro_elf32_vec;
    887 extern const bfd_target v800_elf32_vec;
    888 extern const bfd_target v850_elf32_vec;
    889 extern const bfd_target ft32_elf32_vec;
    890 extern const bfd_target vax_aout_1knbsd_vec;
    891 extern const bfd_target vax_aout_bsd_vec;
    892 extern const bfd_target vax_aout_nbsd_vec;
    893 extern const bfd_target vax_elf32_vec;
    894 extern const bfd_target visium_elf32_vec;
    895 extern const bfd_target w65_coff_vec;
    896 extern const bfd_target wasm_vec;
    897 extern const bfd_target wasm32_elf32_vec;
    898 extern const bfd_target we32k_coff_vec;
    899 extern const bfd_target x86_64_coff_vec;
    900 extern const bfd_target x86_64_elf32_vec;
    901 extern const bfd_target x86_64_elf32_nacl_vec;
    902 extern const bfd_target x86_64_elf64_vec;
    903 extern const bfd_target x86_64_elf64_cloudabi_vec;
    904 extern const bfd_target x86_64_elf64_fbsd_vec;
    905 extern const bfd_target x86_64_elf64_nacl_vec;
    906 extern const bfd_target x86_64_elf64_sol2_vec;
    907 extern const bfd_target x86_64_mach_o_vec;
    908 extern const bfd_target x86_64_pe_vec;
    909 extern const bfd_target x86_64_pe_be_vec;
    910 extern const bfd_target x86_64_pei_vec;
    911 extern const bfd_target xc16x_elf32_vec;
    912 extern const bfd_target xgate_elf32_vec;
    913 extern const bfd_target xstormy16_elf32_vec;
    914 extern const bfd_target xtensa_elf32_be_vec;
    915 extern const bfd_target xtensa_elf32_le_vec;
    916 extern const bfd_target z80_coff_vec;
    917 extern const bfd_target z8k_coff_vec;
    918 
    919 /* These are always included.  */
    920 extern const bfd_target srec_vec;
    921 extern const bfd_target symbolsrec_vec;
    922 extern const bfd_target verilog_vec;
    923 extern const bfd_target tekhex_vec;
    924 extern const bfd_target binary_vec;
    925 extern const bfd_target ihex_vec;
    926 
    927 /* All of the xvecs for core files.  */
    928 extern const bfd_target core_aix386_vec;
    929 extern const bfd_target core_cisco_be_vec;
    930 extern const bfd_target core_cisco_le_vec;
    931 extern const bfd_target core_hppabsd_vec;
    932 extern const bfd_target core_hpux_vec;
    933 extern const bfd_target core_irix_vec;
    934 extern const bfd_target core_netbsd_vec;
    935 extern const bfd_target core_osf_vec;
    936 extern const bfd_target core_ptrace_vec;
    937 extern const bfd_target core_sco5_vec;
    938 extern const bfd_target core_trad_vec;
    939 
    940 static const bfd_target * const _bfd_target_vector[] =
    941 {
    942 #ifdef SELECT_VECS
    943 
    944 	SELECT_VECS,
    945 
    946 #else /* not SELECT_VECS */
    947 
    948 #ifdef DEFAULT_VECTOR
    949 	&DEFAULT_VECTOR,
    950 #endif
    951 	/* This list is alphabetized to make it easy to compare
    952 	   with other vector lists -- the decls above and
    953 	   the case statement in configure.ac.
    954 	   Try to keep it in order when adding new targets, and
    955 	   use a name of the form <cpu>_<format>_<other>_<endian>_vec.
    956 	   Note that sorting is done as if _<endian>_vec wasn't present.
    957 	   Vectors that don't compile on all systems, or aren't finished,
    958 	   should have an entry here with #if 0 around it, to show that
    959 	   it wasn't omitted by mistake.  */
    960 #ifdef BFD64
    961 	&aarch64_elf32_be_vec,
    962 	&aarch64_elf32_le_vec,
    963 	&aarch64_elf64_be_vec,
    964 	&aarch64_elf64_be_cloudabi_vec,
    965 	&aarch64_elf64_le_vec,
    966 	&aarch64_elf64_le_cloudabi_vec,
    967 	&aarch64_mach_o_vec,
    968 #endif
    969 
    970 #ifdef BFD64
    971 	&alpha_ecoff_le_vec,
    972 	&alpha_elf64_vec,
    973 	&alpha_elf64_fbsd_vec,
    974 	&alpha_nlm32_vec,
    975 	&alpha_vms_vec,
    976 #endif
    977 	&alpha_vms_lib_txt_vec,
    978 
    979 	&am33_elf32_linux_vec,
    980 
    981 	&aout0_be_vec,
    982 #ifdef BFD64
    983 	&aout64_vec,	/* Only compiled if host has long-long support.  */
    984 #endif
    985 #if 0
    986 	/* Since a.out files lack decent magic numbers, no way to recognize
    987 	   which kind of a.out file it is.  */
    988 	&aout_vec,
    989 #endif
    990 	&aout_adobe_vec,
    991 
    992 	&arc_elf32_be_vec,
    993 	&arc_elf32_le_vec,
    994 
    995 #if 0
    996 	/* We have no way of distinguishing these from other a.out variants.  */
    997 	&arm_aout_be_vec,
    998 	&arm_aout_le_vec,
    999 #endif
   1000 	&arm_aout_nbsd_vec,
   1001 #if 0
   1002 	/* We have no way of distinguishing these from other a.out variants.  */
   1003 	&arm_aout_riscix_vec,
   1004 #endif
   1005 	&arm_coff_be_vec,
   1006 	&arm_coff_le_vec,
   1007 	&arm_elf32_be_vec,
   1008 	&arm_elf32_le_vec,
   1009 	&arm_elf32_symbian_be_vec,
   1010 	&arm_elf32_symbian_le_vec,
   1011 	&arm_elf32_vxworks_be_vec,
   1012 	&arm_elf32_vxworks_le_vec,
   1013 	&arm_mach_o_vec,
   1014 	&arm_pe_be_vec,
   1015 	&arm_pe_le_vec,
   1016 	&arm_pe_epoc_be_vec,
   1017 	&arm_pe_epoc_le_vec,
   1018 	&arm_pe_wince_be_vec,
   1019 	&arm_pe_wince_le_vec,
   1020 	&arm_pei_be_vec,
   1021 	&arm_pei_le_vec,
   1022 	&arm_pei_epoc_be_vec,
   1023 	&arm_pei_epoc_le_vec,
   1024 	&arm_pei_wince_be_vec,
   1025 	&arm_pei_wince_le_vec,
   1026 
   1027 	&avr_elf32_vec,
   1028 
   1029 	&bfin_elf32_vec,
   1030 	&bfin_elf32_fdpic_vec,
   1031 
   1032 	&bout_be_vec,
   1033 	&bout_le_vec,
   1034 
   1035 	&cr16_elf32_vec,
   1036 	&cr16c_elf32_vec,
   1037 
   1038 	&cris_aout_vec,
   1039 	&cris_elf32_vec,
   1040 	&cris_elf32_us_vec,
   1041 
   1042 	&crx_elf32_vec,
   1043 
   1044 	&d10v_elf32_vec,
   1045 	&d30v_elf32_vec,
   1046 
   1047 	&dlx_elf32_be_vec,
   1048 
   1049 	/* This, and other vectors, may not be used in any *.mt configuration.
   1050 	   But that does not mean they are unnecessary.  If configured with
   1051 	   --enable-targets=all, objdump or gdb should be able to examine
   1052 	   the file even if we don't recognize the machine type.  */
   1053 	&elf32_be_vec,
   1054 	&elf32_le_vec,
   1055 #ifdef BFD64
   1056 	&elf64_be_vec,
   1057 	&elf64_le_vec,
   1058 #endif
   1059 
   1060 	&epiphany_elf32_vec,
   1061 
   1062 	&fr30_elf32_vec,
   1063 
   1064 	&frv_elf32_vec,
   1065 	&frv_elf32_fdpic_vec,
   1066 
   1067 	&h8300_coff_vec,
   1068 	&h8300_elf32_vec,
   1069 	&h8300_elf32_linux_vec,
   1070 	&h8500_coff_vec,
   1071 
   1072 	&hppa_elf32_vec,
   1073 	&hppa_elf32_linux_vec,
   1074 	&hppa_elf32_nbsd_vec,
   1075 #ifdef BFD64
   1076 	&hppa_elf64_vec,
   1077 	&hppa_elf64_linux_vec,
   1078 #endif
   1079 	&hppa_som_vec,
   1080 
   1081 	&i370_elf32_vec,
   1082 
   1083 	&i386_aout_vec,
   1084 	&i386_aout_bsd_vec,
   1085 #if 0
   1086 	&i386_aout_dynix_vec,
   1087 #endif
   1088 	&i386_aout_fbsd_vec,
   1089 #if 0
   1090 	/* Since a.out files lack decent magic numbers, no way to recognize
   1091 	   which kind of a.out file it is.  */
   1092 	&i386_aout_linux_vec,
   1093 #endif
   1094 	&i386_aout_lynx_vec,
   1095 #if 0
   1096 	/* No distinguishing features for Mach 3 executables.  */
   1097 	&i386_aout_mach3_vec,
   1098 #endif
   1099 	&i386_aout_nbsd_vec,
   1100 	&i386_aout_os9k_vec,
   1101 	&i386_coff_vec,
   1102 	&i386_coff_go32_vec,
   1103 	&i386_coff_go32stubbed_vec,
   1104 	&i386_coff_lynx_vec,
   1105 	&i386_elf32_vec,
   1106 	&i386_elf32_fbsd_vec,
   1107 	&i386_elf32_nacl_vec,
   1108 	&i386_elf32_sol2_vec,
   1109 	&i386_elf32_vxworks_vec,
   1110 	&i386_mach_o_vec,
   1111 	&i386_msdos_vec,
   1112 	&i386_nlm32_vec,
   1113 	&i386_pe_vec,
   1114 	&i386_pei_vec,
   1115 
   1116 	&iamcu_elf32_vec,
   1117 
   1118 	&i860_coff_vec,
   1119 	&i860_elf32_vec,
   1120 	&i860_elf32_le_vec,
   1121 
   1122 	&i960_elf32_vec,
   1123 
   1124 #ifdef BFD64
   1125 #if 0
   1126 	&ia64_elf32_be_vec,
   1127 #endif
   1128 	&ia64_elf32_hpux_be_vec,
   1129 	&ia64_elf64_be_vec,
   1130 	&ia64_elf64_le_vec,
   1131 	&ia64_elf64_hpux_be_vec,
   1132 	&ia64_elf64_vms_vec,
   1133 	&ia64_pei_vec,
   1134 #endif
   1135 
   1136 	&icoff_be_vec,
   1137 	&icoff_le_vec,
   1138 
   1139 	&ieee_vec,
   1140 
   1141 	&ip2k_elf32_vec,
   1142 	&iq2000_elf32_vec,
   1143 
   1144 #ifdef BFD64
   1145 	&k1om_elf64_vec,
   1146 	&k1om_elf64_fbsd_vec,
   1147 	&l1om_elf64_vec,
   1148 	&l1om_elf64_fbsd_vec,
   1149 #endif
   1150 
   1151 	&lm32_elf32_vec,
   1152 
   1153 	&m32c_elf32_vec,
   1154 
   1155 	&m32r_elf32_vec,
   1156 	&m32r_elf32_le_vec,
   1157 	&m32r_elf32_linux_vec,
   1158 	&m32r_elf32_linux_le_vec,
   1159 
   1160 	&m68hc11_elf32_vec,
   1161 	&m68hc12_elf32_vec,
   1162 
   1163 #if 0
   1164 	&m68k_aout_4knbsd_vec,
   1165 	/* Clashes with sparc_aout_sunos_be_vec magic no.  */
   1166 	&m68k_aout_hp300bsd_vec,
   1167 #endif
   1168 	&m68k_aout_hp300hpux_vec,
   1169 #if 0
   1170 	/* Since a.out files lack decent magic numbers, no way to recognize
   1171 	   which kind of a.out file it is.  */
   1172 	&m68k_aout_linux_vec,
   1173 #endif
   1174 	&m68k_aout_nbsd_vec,
   1175 	&m68k_aout_newsos3_vec,
   1176 	&m68k_coff_vec,
   1177 #if 0
   1178 	&m68k_coff_apollo_vec,
   1179 	&m68k_coff_aux_vec,
   1180 #endif
   1181 	&m68k_coff_sysv_vec,
   1182 	&m68k_coff_un_vec,
   1183 	&m68k_elf32_vec,
   1184 	&m68k_versados_vec,
   1185 
   1186 	&m88k_aout_mach3_vec,
   1187 	&m88k_aout_obsd_vec,
   1188 	&m88k_coff_bcs_vec,
   1189 	&m88k_elf32_vec,
   1190 
   1191 	&mach_o_be_vec,
   1192 	&mach_o_le_vec,
   1193 	&mach_o_fat_vec,
   1194 
   1195 	&mcore_elf32_be_vec,
   1196 	&mcore_elf32_le_vec,
   1197 	&mcore_pe_be_vec,
   1198 	&mcore_pe_le_vec,
   1199 	&mcore_pei_be_vec,
   1200 	&mcore_pei_le_vec,
   1201 
   1202 	&mep_elf32_vec,
   1203 
   1204 	&metag_elf32_vec,
   1205 
   1206 	&microblaze_elf32_vec,
   1207 
   1208 #if 0
   1209 	/* No one seems to use this.  */
   1210 	&mips_aout_be_vec,
   1211 #endif
   1212 	&mips_aout_le_vec,
   1213 	&mips_ecoff_be_vec,
   1214 	&mips_ecoff_le_vec,
   1215 	&mips_ecoff_bele_vec,
   1216 #ifdef BFD64
   1217 	&mips_elf32_be_vec,
   1218 	&mips_elf32_le_vec,
   1219 	&mips_elf32_n_be_vec,
   1220 	&mips_elf32_n_le_vec,
   1221 	&mips_elf32_ntrad_be_vec,
   1222 	&mips_elf32_ntrad_le_vec,
   1223 	&mips_elf32_ntradfbsd_be_vec,
   1224 	&mips_elf32_ntradfbsd_le_vec,
   1225 	&mips_elf32_trad_be_vec,
   1226 	&mips_elf32_trad_le_vec,
   1227 	&mips_elf32_tradfbsd_be_vec,
   1228 	&mips_elf32_tradfbsd_le_vec,
   1229 	&mips_elf32_vxworks_be_vec,
   1230 	&mips_elf32_vxworks_le_vec,
   1231 	&mips_elf64_be_vec,
   1232 	&mips_elf64_le_vec,
   1233 	&mips_elf64_trad_be_vec,
   1234 	&mips_elf64_trad_le_vec,
   1235 	&mips_elf64_tradfbsd_be_vec,
   1236 	&mips_elf64_tradfbsd_le_vec,
   1237 #endif
   1238 	&mips_pe_le_vec,
   1239 	&mips_pei_le_vec,
   1240 
   1241 #ifdef BFD64
   1242 	&mmix_elf64_vec,
   1243 	&mmix_mmo_vec,
   1244 #endif
   1245 
   1246 	&mn10200_elf32_vec,
   1247 	&mn10300_elf32_vec,
   1248 
   1249 	&moxie_elf32_be_vec,
   1250 	&moxie_elf32_le_vec,
   1251 
   1252 	&msp430_elf32_vec,
   1253 	&msp430_elf32_ti_vec,
   1254 
   1255 	&mt_elf32_vec,
   1256 
   1257 	&nds32_elf32_be_vec,
   1258 	&nds32_elf32_le_vec,
   1259 	&nds32_elf32_linux_be_vec,
   1260 	&nds32_elf32_linux_le_vec,
   1261 
   1262 	&nios2_elf32_be_vec,
   1263 	&nios2_elf32_le_vec,
   1264 
   1265 	&ns32k_aout_pc532mach_vec,
   1266 	&ns32k_aout_pc532nbsd_vec,
   1267 
   1268 #if 0
   1269 	/* We have no oasys tools anymore, so we can't test any of this
   1270 	   anymore. If you want to test the stuff yourself, go ahead...
   1271 	   steve (at) cygnus.com
   1272 	   Worse, since there is no magic number for archives, there
   1273 	   can be annoying target mis-matches.  */
   1274 	&oasys_vec,
   1275 #endif
   1276 
   1277 	&or1k_elf32_vec,
   1278 
   1279 	&pdp11_aout_vec,
   1280 
   1281 	&pef_vec,
   1282 	&pef_xlib_vec,
   1283 
   1284 	&pj_elf32_vec,
   1285 	&pj_elf32_le_vec,
   1286 
   1287 #if BFD_SUPPORTS_PLUGINS
   1288 	&plugin_vec,
   1289 #endif
   1290 
   1291 	&powerpc_boot_vec,
   1292 	&powerpc_elf32_vec,
   1293 	&powerpc_elf32_le_vec,
   1294 	&powerpc_elf32_fbsd_vec,
   1295 	&powerpc_elf32_vxworks_vec,
   1296 #ifdef BFD64
   1297 	&powerpc_elf64_vec,
   1298 	&powerpc_elf64_le_vec,
   1299 	&powerpc_elf64_fbsd_vec,
   1300 #endif
   1301 	&powerpc_nlm32_vec,
   1302 	&powerpc_pe_vec,
   1303 	&powerpc_pe_le_vec,
   1304 	&powerpc_pei_vec,
   1305 	&powerpc_pei_le_vec,
   1306 #if 0
   1307 	/* This has the same magic number as RS/6000.  */
   1308 	&powerpc_xcoff_vec,
   1309 #endif
   1310 
   1311 	&pru_elf32_vec,
   1312 
   1313 #ifdef BFD64
   1314 	&riscv_elf32_vec,
   1315 	&riscv_elf64_vec,
   1316 #endif
   1317 	&rl78_elf32_vec,
   1318 
   1319 #ifdef BFD64
   1320 	&rs6000_xcoff64_vec,
   1321 	&rs6000_xcoff64_aix_vec,
   1322 #endif
   1323 	&rs6000_xcoff_vec,
   1324 
   1325 	&rx_elf32_be_vec,
   1326 	&rx_elf32_be_ns_vec,
   1327 	&rx_elf32_le_vec,
   1328 
   1329 	&s390_elf32_vec,
   1330 #ifdef BFD64
   1331 	&s390_elf64_vec,
   1332 #endif
   1333 
   1334 #ifdef BFD64
   1335 	&score_elf32_be_vec,
   1336 	&score_elf32_le_vec,
   1337 #endif
   1338 
   1339 #ifdef BFD64
   1340 	&sh64_elf32_vec,
   1341 	&sh64_elf32_le_vec,
   1342 	&sh64_elf32_linux_vec,
   1343 	&sh64_elf32_linux_be_vec,
   1344 	&sh64_elf32_nbsd_vec,
   1345 	&sh64_elf32_nbsd_le_vec,
   1346 	&sh64_elf64_vec,
   1347 	&sh64_elf64_le_vec,
   1348 	&sh64_elf64_linux_vec,
   1349 	&sh64_elf64_linux_be_vec,
   1350 	&sh64_elf64_nbsd_vec,
   1351 	&sh64_elf64_nbsd_le_vec,
   1352 #endif
   1353 	&sh_coff_vec,
   1354 	&sh_coff_le_vec,
   1355 	&sh_coff_small_vec,
   1356 	&sh_coff_small_le_vec,
   1357 	&sh_elf32_vec,
   1358 	&sh_elf32_le_vec,
   1359 	&sh_elf32_fdpic_be_vec,
   1360 	&sh_elf32_fdpic_le_vec,
   1361 	&sh_elf32_linux_vec,
   1362 	&sh_elf32_linux_be_vec,
   1363 	&sh_elf32_nbsd_vec,
   1364 	&sh_elf32_nbsd_le_vec,
   1365 	&sh_elf32_symbian_le_vec,
   1366 	&sh_elf32_vxworks_vec,
   1367 	&sh_elf32_vxworks_le_vec,
   1368 	&sh_pe_le_vec,
   1369 	&sh_pei_le_vec,
   1370 
   1371 	&sparc_aout_le_vec,
   1372 	&sparc_aout_linux_vec,
   1373 	&sparc_aout_lynx_vec,
   1374 	&sparc_aout_nbsd_vec,
   1375 	&sparc_aout_sunos_be_vec,
   1376 	&sparc_coff_vec,
   1377 	&sparc_coff_lynx_vec,
   1378 	&sparc_elf32_vec,
   1379 	&sparc_elf32_sol2_vec,
   1380 	&sparc_elf32_vxworks_vec,
   1381 #ifdef BFD64
   1382 	&sparc_elf64_vec,
   1383 	&sparc_elf64_fbsd_vec,
   1384 	&sparc_elf64_sol2_vec,
   1385 #endif
   1386 	&sparc_nlm32_vec,
   1387 
   1388 	&spu_elf32_vec,
   1389 
   1390 	&sym_vec,
   1391 
   1392 	&tic30_aout_vec,
   1393 	&tic30_coff_vec,
   1394 	&tic54x_coff0_beh_vec,
   1395 	&tic54x_coff0_vec,
   1396 	&tic54x_coff1_beh_vec,
   1397 	&tic54x_coff1_vec,
   1398 	&tic54x_coff2_beh_vec,
   1399 	&tic54x_coff2_vec,
   1400 	&tic6x_elf32_be_vec,
   1401 	&tic6x_elf32_le_vec,
   1402 	&tic80_coff_vec,
   1403 
   1404 	&tilegx_elf32_be_vec,
   1405 	&tilegx_elf32_le_vec,
   1406 #ifdef BFD64
   1407 	&tilegx_elf64_be_vec,
   1408 	&tilegx_elf64_le_vec,
   1409 #endif
   1410 	&tilepro_elf32_vec,
   1411 
   1412 	&ft32_elf32_vec,
   1413 
   1414 	&v800_elf32_vec,
   1415 	&v850_elf32_vec,
   1416 
   1417 	&vax_aout_1knbsd_vec,
   1418 	&vax_aout_bsd_vec,
   1419 	&vax_aout_nbsd_vec,
   1420 	&vax_elf32_vec,
   1421 
   1422 	&visium_elf32_vec,
   1423 
   1424 	&w65_coff_vec,
   1425 
   1426         &wasm_vec,
   1427         &wasm32_elf32_vec,
   1428 
   1429 	&we32k_coff_vec,
   1430 
   1431 #ifdef BFD64
   1432 	&x86_64_coff_vec,
   1433 	&x86_64_elf32_vec,
   1434 	&x86_64_elf32_nacl_vec,
   1435 	&x86_64_elf64_vec,
   1436 	&x86_64_elf64_cloudabi_vec,
   1437 	&x86_64_elf64_fbsd_vec,
   1438 	&x86_64_elf64_nacl_vec,
   1439 	&x86_64_elf64_sol2_vec,
   1440 	&x86_64_mach_o_vec,
   1441 	&x86_64_pe_vec,
   1442 	&x86_64_pe_be_vec,
   1443 	&x86_64_pei_vec,
   1444 #endif
   1445 
   1446 	&xc16x_elf32_vec,
   1447 
   1448 	&xgate_elf32_vec,
   1449 
   1450 	&xstormy16_elf32_vec,
   1451 
   1452 	&xtensa_elf32_be_vec,
   1453 	&xtensa_elf32_le_vec,
   1454 
   1455 	&z80_coff_vec,
   1456 
   1457 	&z8k_coff_vec,
   1458 #endif /* not SELECT_VECS */
   1459 
   1460 /* Always support S-records, for convenience.  */
   1461 	&srec_vec,
   1462 	&symbolsrec_vec,
   1463 /* And verilog.  */
   1464 	&verilog_vec,
   1465 /* And tekhex */
   1466 	&tekhex_vec,
   1467 /* Likewise for binary output.  */
   1468 	&binary_vec,
   1469 /* Likewise for ihex.  */
   1470 	&ihex_vec,
   1471 
   1472 /* Add any required traditional-core-file-handler.  */
   1473 
   1474 #ifdef AIX386_CORE
   1475 	&core_aix386_vec,
   1476 #endif
   1477 #if 0
   1478 	/* We don't include cisco_core_*_vec.  Although it has a magic number,
   1479 	   the magic number isn't at the beginning of the file, and thus
   1480 	   might spuriously match other kinds of files.  */
   1481 	&core_cisco_be_vec,
   1482 	&core_cisco_le_vec,
   1483 #endif
   1484 #ifdef HPPABSD_CORE
   1485 	&core_hppabsd_vec,
   1486 #endif
   1487 #ifdef HPUX_CORE
   1488 	&core_hpux_vec,
   1489 #endif
   1490 #ifdef IRIX_CORE
   1491 	&core_irix_vec,
   1492 #endif
   1493 #ifdef NETBSD_CORE
   1494 	&core_netbsd_vec,
   1495 #endif
   1496 #ifdef OSF_CORE
   1497 	&core_osf_vec,
   1498 #endif
   1499 #ifdef PTRACE_CORE
   1500 	&core_ptrace_vec,
   1501 #endif
   1502 #ifdef SCO5_CORE
   1503 	&core_sco5_vec,
   1504 #endif
   1505 #ifdef TRAD_CORE
   1506 	&core_trad_vec,
   1507 #endif
   1508 
   1509 	NULL /* end of list marker */
   1510 };
   1511 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
   1512 
   1513 /* bfd_default_vector[0] contains either the address of the default vector,
   1514    if there is one, or zero if there isn't.  */
   1515 
   1516 const bfd_target *bfd_default_vector[] = {
   1517 #ifdef DEFAULT_VECTOR
   1518 	&DEFAULT_VECTOR,
   1519 #endif
   1520 	NULL
   1521 };
   1522 
   1523 /* bfd_associated_vector[] contains the associated target vectors used
   1524    to reduce the ambiguity in bfd_check_format_matches.  */
   1525 
   1526 static const bfd_target *_bfd_associated_vector[] = {
   1527 #ifdef ASSOCIATED_VECS
   1528 	ASSOCIATED_VECS,
   1529 #endif
   1530 	NULL
   1531 };
   1532 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
   1533 
   1534 /* When there is an ambiguous match, bfd_check_format_matches puts the
   1535    names of the matching targets in an array.  This variable is the maximum
   1536    number of entries that the array could possibly need.  */
   1537 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
   1538 
   1539 /* This array maps configuration triplets onto BFD vectors.  */
   1541 
   1542 struct targmatch
   1543 {
   1544   /* The configuration triplet.  */
   1545   const char *triplet;
   1546   /* The BFD vector.  If this is NULL, then the vector is found by
   1547      searching forward for the next structure with a non NULL vector
   1548      field.  */
   1549   const bfd_target *vector;
   1550 };
   1551 
   1552 /* targmatch.h is built by Makefile out of config.bfd.  */
   1553 static const struct targmatch bfd_target_match[] = {
   1554 #include "targmatch.h"
   1555   { NULL, NULL }
   1556 };
   1557 
   1558 /* Find a target vector, given a name or configuration triplet.  */
   1559 
   1560 static const bfd_target *
   1561 find_target (const char *name)
   1562 {
   1563   const bfd_target * const *target;
   1564   const struct targmatch *match;
   1565 
   1566   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1567     if (strcmp (name, (*target)->name) == 0)
   1568       return *target;
   1569 
   1570   /* If we couldn't match on the exact name, try matching on the
   1571      configuration triplet.  FIXME: We should run the triplet through
   1572      config.sub first, but that is hard.  */
   1573   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
   1574     {
   1575       if (fnmatch (match->triplet, name, 0) == 0)
   1576 	{
   1577 	  while (match->vector == NULL)
   1578 	    ++match;
   1579 	  return match->vector;
   1580 	}
   1581     }
   1582 
   1583   bfd_set_error (bfd_error_invalid_target);
   1584   return NULL;
   1585 }
   1586 
   1587 /*
   1588 FUNCTION
   1589 	bfd_set_default_target
   1590 
   1591 SYNOPSIS
   1592 	bfd_boolean bfd_set_default_target (const char *name);
   1593 
   1594 DESCRIPTION
   1595 	Set the default target vector to use when recognizing a BFD.
   1596 	This takes the name of the target, which may be a BFD target
   1597 	name or a configuration triplet.
   1598 */
   1599 
   1600 bfd_boolean
   1601 bfd_set_default_target (const char *name)
   1602 {
   1603   const bfd_target *target;
   1604 
   1605   if (bfd_default_vector[0] != NULL
   1606       && strcmp (name, bfd_default_vector[0]->name) == 0)
   1607     return TRUE;
   1608 
   1609   target = find_target (name);
   1610   if (target == NULL)
   1611     return FALSE;
   1612 
   1613   bfd_default_vector[0] = target;
   1614   return TRUE;
   1615 }
   1616 
   1617 /*
   1618 FUNCTION
   1619 	bfd_find_target
   1620 
   1621 SYNOPSIS
   1622 	const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
   1623 
   1624 DESCRIPTION
   1625 	Return a pointer to the transfer vector for the object target
   1626 	named @var{target_name}.  If @var{target_name} is <<NULL>>,
   1627 	choose the one in the environment variable <<GNUTARGET>>; if
   1628 	that is null or not defined, then choose the first entry in the
   1629 	target list.  Passing in the string "default" or setting the
   1630 	environment variable to "default" will cause the first entry in
   1631 	the target list to be returned, and "target_defaulted" will be
   1632 	set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
   1633 	<<bfd_check_format>> to loop over all the targets to find the
   1634 	one that matches the file being read.
   1635 */
   1636 
   1637 const bfd_target *
   1638 bfd_find_target (const char *target_name, bfd *abfd)
   1639 {
   1640   const char *targname;
   1641   const bfd_target *target;
   1642 
   1643   if (target_name != NULL)
   1644     targname = target_name;
   1645   else
   1646     targname = getenv ("GNUTARGET");
   1647 
   1648   /* This is safe; the vector cannot be null.  */
   1649   if (targname == NULL || strcmp (targname, "default") == 0)
   1650     {
   1651       if (bfd_default_vector[0] != NULL)
   1652 	target = bfd_default_vector[0];
   1653       else
   1654 	target = bfd_target_vector[0];
   1655       if (abfd)
   1656 	{
   1657 	  abfd->xvec = target;
   1658 	  abfd->target_defaulted = TRUE;
   1659 	}
   1660       return target;
   1661     }
   1662 
   1663   if (abfd)
   1664     abfd->target_defaulted = FALSE;
   1665 
   1666   target = find_target (targname);
   1667   if (target == NULL)
   1668     return NULL;
   1669 
   1670   if (abfd)
   1671     abfd->xvec = target;
   1672   return target;
   1673 }
   1674 
   1675 /* Helper function for bfd_get_target_info to determine the target's
   1676    architecture.  This method handles bfd internal target names as
   1677    tuples and triplets.  */
   1678 static bfd_boolean
   1679 _bfd_find_arch_match (const char *tname, const char **arch,
   1680 		      const char **def_target_arch)
   1681 {
   1682   if (!arch)
   1683     return FALSE;
   1684 
   1685   while (*arch != NULL)
   1686     {
   1687       const char *in_a = strstr (*arch, tname);
   1688       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
   1689 
   1690       if (in_a && (in_a == *arch || in_a[-1] == ':')
   1691           && end_ch == 0)
   1692         {
   1693           *def_target_arch = *arch;
   1694           return TRUE;
   1695         }
   1696       arch++;
   1697     }
   1698   return FALSE;
   1699 }
   1700 
   1701 /*
   1702 FUNCTION
   1703 	bfd_get_target_info
   1704 SYNOPSIS
   1705 	const bfd_target *bfd_get_target_info (const char *target_name,
   1706 					       bfd *abfd,
   1707 					       bfd_boolean *is_bigendian,
   1708 					       int *underscoring,
   1709 					       const char **def_target_arch);
   1710 DESCRIPTION
   1711         Return a pointer to the transfer vector for the object target
   1712         named @var{target_name}.  If @var{target_name} is <<NULL>>,
   1713         choose the one in the environment variable <<GNUTARGET>>; if
   1714         that is null or not defined, then choose the first entry in the
   1715         target list.  Passing in the string "default" or setting the
   1716         environment variable to "default" will cause the first entry in
   1717         the target list to be returned, and "target_defaulted" will be
   1718         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
   1719         <<bfd_check_format>> to loop over all the targets to find the
   1720         one that matches the file being read.
   1721 	If @var{is_bigendian} is not <<NULL>>, then set this value to target's
   1722 	endian mode. True for big-endian, FALSE for little-endian or for
   1723 	invalid target.
   1724 	If @var{underscoring} is not <<NULL>>, then set this value to target's
   1725 	underscoring mode. Zero for none-underscoring, -1 for invalid target,
   1726 	else the value of target vector's symbol underscoring.
   1727 	If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
   1728 	string specified by the target_name.
   1729 */
   1730 const bfd_target *
   1731 bfd_get_target_info (const char *target_name, bfd *abfd,
   1732 		     bfd_boolean *is_bigendian,
   1733 		     int *underscoring, const char **def_target_arch)
   1734 {
   1735   const bfd_target *target_vec;
   1736 
   1737   if (is_bigendian)
   1738     *is_bigendian = FALSE;
   1739   if (underscoring)
   1740     *underscoring = -1;
   1741   if (def_target_arch)
   1742     *def_target_arch = NULL;
   1743   target_vec = bfd_find_target (target_name, abfd);
   1744   if (! target_vec)
   1745     return NULL;
   1746   if (is_bigendian)
   1747     *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
   1748 							       : FALSE);
   1749   if (underscoring)
   1750     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
   1751 
   1752   if (def_target_arch)
   1753     {
   1754       const char *tname = target_vec->name;
   1755       const char **arches = bfd_arch_list ();
   1756 
   1757       if (arches && tname)
   1758         {
   1759           char *hyp = strchr (tname, '-');
   1760 
   1761           if (hyp != NULL)
   1762             {
   1763               tname = ++hyp;
   1764 
   1765 	      /* Make sure we detect architecture names
   1766 		 for triplets like "pe-arm-wince-little".  */
   1767 	      if (!_bfd_find_arch_match (tname, arches, def_target_arch))
   1768 		{
   1769 		  char new_tname[50];
   1770 
   1771 		  strcpy (new_tname, hyp);
   1772 		  while ((hyp = strrchr (new_tname, '-')) != NULL)
   1773 		    {
   1774 		      *hyp = 0;
   1775 		      if (_bfd_find_arch_match (new_tname, arches,
   1776 						def_target_arch))
   1777 			break;
   1778 		    }
   1779 		}
   1780 	    }
   1781 	  else
   1782 	    _bfd_find_arch_match (tname, arches, def_target_arch);
   1783 	}
   1784 
   1785       if (arches)
   1786         free (arches);
   1787     }
   1788   return target_vec;
   1789 }
   1790 
   1791 /*
   1792 FUNCTION
   1793 	bfd_target_list
   1794 
   1795 SYNOPSIS
   1796 	const char ** bfd_target_list (void);
   1797 
   1798 DESCRIPTION
   1799 	Return a freshly malloced NULL-terminated
   1800 	vector of the names of all the valid BFD targets. Do not
   1801 	modify the names.
   1802 
   1803 */
   1804 
   1805 const char **
   1806 bfd_target_list (void)
   1807 {
   1808   int vec_length = 0;
   1809   bfd_size_type amt;
   1810   const bfd_target * const *target;
   1811   const  char **name_list, **name_ptr;
   1812 
   1813   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1814     vec_length++;
   1815 
   1816   amt = (vec_length + 1) * sizeof (char **);
   1817   name_ptr = name_list = (const  char **) bfd_malloc (amt);
   1818 
   1819   if (name_list == NULL)
   1820     return NULL;
   1821 
   1822   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1823     if (target == &bfd_target_vector[0]
   1824 	|| *target != bfd_target_vector[0])
   1825       *name_ptr++ = (*target)->name;
   1826 
   1827   *name_ptr = NULL;
   1828   return name_list;
   1829 }
   1830 
   1831 /*
   1832 FUNCTION
   1833 	bfd_iterate_over_targets
   1834 
   1835 SYNOPSIS
   1836 	const bfd_target *bfd_iterate_over_targets
   1837 	  (int (*func) (const bfd_target *, void *),
   1838 	   void *data);
   1839 
   1840 DESCRIPTION
   1841 	Call @var{func} for each target in the list of BFD target
   1842 	vectors, passing @var{data} to @var{func}.  Stop iterating if
   1843 	@var{func} returns a non-zero result, and return that target
   1844 	vector.  Return NULL if @var{func} always returns zero.
   1845 */
   1846 
   1847 const bfd_target *
   1848 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
   1849 			  void *data)
   1850 {
   1851   const bfd_target *const *target;
   1852 
   1853   for (target = bfd_target_vector; *target != NULL; ++target)
   1854     if (func (*target, data))
   1855       return *target;
   1856 
   1857   return NULL;
   1858 }
   1859 
   1860 /*
   1861 FUNCTION
   1862 	bfd_flavour_name
   1863 
   1864 SYNOPSIS
   1865 	const char *bfd_flavour_name (enum bfd_flavour flavour);
   1866 
   1867 DESCRIPTION
   1868 	Return the string form of @var{flavour}.
   1869 */
   1870 
   1871 const char *
   1872 bfd_flavour_name (enum bfd_flavour flavour)
   1873 {
   1874   switch (flavour)
   1875     {
   1876     case bfd_target_unknown_flavour: return "unknown file format";
   1877     case bfd_target_aout_flavour: return "a.out";
   1878     case bfd_target_coff_flavour: return "COFF";
   1879     case bfd_target_ecoff_flavour: return "ECOFF";
   1880     case bfd_target_xcoff_flavour: return "XCOFF";
   1881     case bfd_target_elf_flavour: return "ELF";
   1882     case bfd_target_ieee_flavour: return "IEEE";
   1883     case bfd_target_nlm_flavour: return "NLM";
   1884     case bfd_target_oasys_flavour: return "Oasys";
   1885     case bfd_target_tekhex_flavour: return "Tekhex";
   1886     case bfd_target_srec_flavour: return "Srec";
   1887     case bfd_target_verilog_flavour: return "Verilog";
   1888     case bfd_target_ihex_flavour: return "Ihex";
   1889     case bfd_target_som_flavour: return "SOM";
   1890     case bfd_target_os9k_flavour: return "OS9K";
   1891     case bfd_target_versados_flavour: return "Versados";
   1892     case bfd_target_msdos_flavour: return "MSDOS";
   1893     case bfd_target_ovax_flavour: return "Ovax";
   1894     case bfd_target_evax_flavour: return "Evax";
   1895     case bfd_target_mmo_flavour: return "mmo";
   1896     case bfd_target_mach_o_flavour: return "MACH_O";
   1897     case bfd_target_pef_flavour: return "PEF";
   1898     case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
   1899     case bfd_target_sym_flavour: return "SYM";
   1900     /* There is no "default" case here so that -Wswitch (part of -Wall)
   1901        catches missing entries.  */
   1902     }
   1903 
   1904   abort ();
   1905 }
   1906