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      1 /* Generic target-file-type support for the BFD library.
      2    Copyright (C) 1990-2014 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 .  bfd_target_unknown_flavour,
    148 .  bfd_target_aout_flavour,
    149 .  bfd_target_coff_flavour,
    150 .  bfd_target_ecoff_flavour,
    151 .  bfd_target_xcoff_flavour,
    152 .  bfd_target_elf_flavour,
    153 .  bfd_target_ieee_flavour,
    154 .  bfd_target_nlm_flavour,
    155 .  bfd_target_oasys_flavour,
    156 .  bfd_target_tekhex_flavour,
    157 .  bfd_target_srec_flavour,
    158 .  bfd_target_verilog_flavour,
    159 .  bfd_target_ihex_flavour,
    160 .  bfd_target_som_flavour,
    161 .  bfd_target_os9k_flavour,
    162 .  bfd_target_versados_flavour,
    163 .  bfd_target_msdos_flavour,
    164 .  bfd_target_ovax_flavour,
    165 .  bfd_target_evax_flavour,
    166 .  bfd_target_mmo_flavour,
    167 .  bfd_target_mach_o_flavour,
    168 .  bfd_target_pef_flavour,
    169 .  bfd_target_pef_xlib_flavour,
    170 .  bfd_target_sym_flavour
    171 .};
    172 .
    173 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
    174 .
    175 .{* Forward declaration.  *}
    176 .typedef struct bfd_link_info _bfd_link_info;
    177 .
    178 .{* Forward declaration.  *}
    179 .typedef struct flag_info flag_info;
    180 .
    181 .typedef struct bfd_target
    182 .{
    183 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
    184 .  char *name;
    185 .
    186 . {* The "flavour" of a back end is a general indication about
    187 .    the contents of a file.  *}
    188 .  enum bfd_flavour flavour;
    189 .
    190 .  {* The order of bytes within the data area of a file.  *}
    191 .  enum bfd_endian byteorder;
    192 .
    193 . {* The order of bytes within the header parts of a file.  *}
    194 .  enum bfd_endian header_byteorder;
    195 .
    196 .  {* A mask of all the flags which an executable may have set -
    197 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
    198 .  flagword object_flags;
    199 .
    200 . {* A mask of all the flags which a section may have set - from
    201 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
    202 .  flagword section_flags;
    203 .
    204 . {* The character normally found at the front of a symbol.
    205 .    (if any), perhaps `_'.  *}
    206 .  char symbol_leading_char;
    207 .
    208 . {* The pad character for file names within an archive header.  *}
    209 .  char ar_pad_char;
    210 .
    211 .  {* The maximum number of characters in an archive header.  *}
    212 .  unsigned char ar_max_namelen;
    213 .
    214 .  {* How well this target matches, used to select between various
    215 .     possible targets when more than one target matches.  *}
    216 .  unsigned char match_priority;
    217 .
    218 .  {* Entries for byte swapping for data. These are different from the
    219 .     other entry points, since they don't take a BFD as the first argument.
    220 .     Certain other handlers could do the same.  *}
    221 .  bfd_uint64_t   (*bfd_getx64) (const void *);
    222 .  bfd_int64_t    (*bfd_getx_signed_64) (const void *);
    223 .  void           (*bfd_putx64) (bfd_uint64_t, void *);
    224 .  bfd_vma        (*bfd_getx32) (const void *);
    225 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
    226 .  void           (*bfd_putx32) (bfd_vma, void *);
    227 .  bfd_vma        (*bfd_getx16) (const void *);
    228 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
    229 .  void           (*bfd_putx16) (bfd_vma, void *);
    230 .
    231 .  {* Byte swapping for the headers.  *}
    232 .  bfd_uint64_t   (*bfd_h_getx64) (const void *);
    233 .  bfd_int64_t    (*bfd_h_getx_signed_64) (const void *);
    234 .  void           (*bfd_h_putx64) (bfd_uint64_t, void *);
    235 .  bfd_vma        (*bfd_h_getx32) (const void *);
    236 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
    237 .  void           (*bfd_h_putx32) (bfd_vma, void *);
    238 .  bfd_vma        (*bfd_h_getx16) (const void *);
    239 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
    240 .  void           (*bfd_h_putx16) (bfd_vma, void *);
    241 .
    242 .  {* Format dependent routines: these are vectors of entry points
    243 .     within the target vector structure, one for each format to check.  *}
    244 .
    245 .  {* Check the format of a file being read.  Return a <<bfd_target *>> or zero.  *}
    246 .  const struct bfd_target *(*_bfd_check_format[bfd_type_end]) (bfd *);
    247 .
    248 .  {* Set the format of a file being written.  *}
    249 .  bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *);
    250 .
    251 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
    252 .  bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *);
    253 .
    254 The general target vector.  These vectors are initialized using the
    255 BFD_JUMP_TABLE macros.
    256 .
    257 .  {* Generic entry points.  *}
    258 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
    259 .  NAME##_close_and_cleanup, \
    260 .  NAME##_bfd_free_cached_info, \
    261 .  NAME##_new_section_hook, \
    262 .  NAME##_get_section_contents, \
    263 .  NAME##_get_section_contents_in_window
    264 .
    265 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
    266 .  bfd_boolean (*_close_and_cleanup) (bfd *);
    267 .  {* Ask the BFD to free all cached information.  *}
    268 .  bfd_boolean (*_bfd_free_cached_info) (bfd *);
    269 .  {* Called when a new section is created.  *}
    270 .  bfd_boolean (*_new_section_hook) (bfd *, sec_ptr);
    271 .  {* Read the contents of a section.  *}
    272 .  bfd_boolean (*_bfd_get_section_contents)
    273 .    (bfd *, sec_ptr, void *, file_ptr, bfd_size_type);
    274 .  bfd_boolean (*_bfd_get_section_contents_in_window)
    275 .    (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type);
    276 .
    277 .  {* Entry points to copy private data.  *}
    278 .#define BFD_JUMP_TABLE_COPY(NAME) \
    279 .  NAME##_bfd_copy_private_bfd_data, \
    280 .  NAME##_bfd_merge_private_bfd_data, \
    281 .  _bfd_generic_init_private_section_data, \
    282 .  NAME##_bfd_copy_private_section_data, \
    283 .  NAME##_bfd_copy_private_symbol_data, \
    284 .  NAME##_bfd_copy_private_header_data, \
    285 .  NAME##_bfd_set_private_flags, \
    286 .  NAME##_bfd_print_private_bfd_data
    287 .
    288 .  {* Called to copy BFD general private data from one object file
    289 .     to another.  *}
    290 .  bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
    291 .  {* Called to merge BFD general private data from one object file
    292 .     to a common output file when linking.  *}
    293 .  bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, bfd *);
    294 .  {* Called to initialize BFD private section data from one object file
    295 .     to another.  *}
    296 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \
    297 .  BFD_SEND (obfd, _bfd_init_private_section_data, (ibfd, isec, obfd, osec, link_info))
    298 .  bfd_boolean (*_bfd_init_private_section_data)
    299 .    (bfd *, sec_ptr, bfd *, sec_ptr, struct bfd_link_info *);
    300 .  {* Called to copy BFD private section data from one object file
    301 .     to another.  *}
    302 .  bfd_boolean (*_bfd_copy_private_section_data)
    303 .    (bfd *, sec_ptr, bfd *, sec_ptr);
    304 .  {* Called to copy BFD private symbol data from one symbol
    305 .     to another.  *}
    306 .  bfd_boolean (*_bfd_copy_private_symbol_data)
    307 .    (bfd *, asymbol *, bfd *, asymbol *);
    308 .  {* Called to copy BFD private header data from one object file
    309 .     to another.  *}
    310 .  bfd_boolean (*_bfd_copy_private_header_data)
    311 .    (bfd *, bfd *);
    312 .  {* Called to set private backend flags.  *}
    313 .  bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword);
    314 .
    315 .  {* Called to print private BFD data.  *}
    316 .  bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *);
    317 .
    318 .  {* Core file entry points.  *}
    319 .#define BFD_JUMP_TABLE_CORE(NAME) \
    320 .  NAME##_core_file_failing_command, \
    321 .  NAME##_core_file_failing_signal, \
    322 .  NAME##_core_file_matches_executable_p, \
    323 .  NAME##_core_file_pid
    324 .
    325 .  char *      (*_core_file_failing_command) (bfd *);
    326 .  int         (*_core_file_failing_signal) (bfd *);
    327 .  bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *);
    328 .  int         (*_core_file_pid) (bfd *);
    329 .
    330 .  {* Archive entry points.  *}
    331 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
    332 .  NAME##_slurp_armap, \
    333 .  NAME##_slurp_extended_name_table, \
    334 .  NAME##_construct_extended_name_table, \
    335 .  NAME##_truncate_arname, \
    336 .  NAME##_write_armap, \
    337 .  NAME##_read_ar_hdr, \
    338 .  NAME##_write_ar_hdr, \
    339 .  NAME##_openr_next_archived_file, \
    340 .  NAME##_get_elt_at_index, \
    341 .  NAME##_generic_stat_arch_elt, \
    342 .  NAME##_update_armap_timestamp
    343 .
    344 .  bfd_boolean (*_bfd_slurp_armap) (bfd *);
    345 .  bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *);
    346 .  bfd_boolean (*_bfd_construct_extended_name_table)
    347 .    (bfd *, char **, bfd_size_type *, const char **);
    348 .  void        (*_bfd_truncate_arname) (bfd *, const char *, char *);
    349 .  bfd_boolean (*write_armap)
    350 .    (bfd *, unsigned int, struct orl *, unsigned int, int);
    351 .  void *      (*_bfd_read_ar_hdr_fn) (bfd *);
    352 .  bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
    353 .  bfd *       (*openr_next_archived_file) (bfd *, bfd *);
    354 .#define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
    355 .  bfd *       (*_bfd_get_elt_at_index) (bfd *, symindex);
    356 .  int         (*_bfd_stat_arch_elt) (bfd *, struct stat *);
    357 .  bfd_boolean (*_bfd_update_armap_timestamp) (bfd *);
    358 .
    359 .  {* Entry points used for symbols.  *}
    360 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
    361 .  NAME##_get_symtab_upper_bound, \
    362 .  NAME##_canonicalize_symtab, \
    363 .  NAME##_make_empty_symbol, \
    364 .  NAME##_print_symbol, \
    365 .  NAME##_get_symbol_info, \
    366 .  NAME##_bfd_is_local_label_name, \
    367 .  NAME##_bfd_is_target_special_symbol, \
    368 .  NAME##_get_lineno, \
    369 .  NAME##_find_nearest_line, \
    370 .  NAME##_find_line, \
    371 .  NAME##_find_inliner_info, \
    372 .  NAME##_bfd_make_debug_symbol, \
    373 .  NAME##_read_minisymbols, \
    374 .  NAME##_minisymbol_to_symbol
    375 .
    376 .  long        (*_bfd_get_symtab_upper_bound) (bfd *);
    377 .  long        (*_bfd_canonicalize_symtab)
    378 .    (bfd *, struct bfd_symbol **);
    379 .  struct bfd_symbol *
    380 .              (*_bfd_make_empty_symbol) (bfd *);
    381 .  void        (*_bfd_print_symbol)
    382 .    (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type);
    383 .#define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
    384 .  void        (*_bfd_get_symbol_info)
    385 .    (bfd *, struct bfd_symbol *, symbol_info *);
    386 .#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
    387 .  bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
    388 .  bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
    389 .  alent *     (*_get_lineno) (bfd *, struct bfd_symbol *);
    390 .  bfd_boolean (*_bfd_find_nearest_line)
    391 .    (bfd *, struct bfd_symbol **, struct bfd_section *, bfd_vma,
    392 .     const char **, const char **, unsigned int *, unsigned int *);
    393 .  bfd_boolean (*_bfd_find_line)
    394 .    (bfd *, struct bfd_symbol **, struct bfd_symbol *,
    395 .     const char **, unsigned int *);
    396 .  bfd_boolean (*_bfd_find_inliner_info)
    397 .    (bfd *, const char **, const char **, unsigned int *);
    398 . {* Back-door to allow format-aware applications to create debug symbols
    399 .    while using BFD for everything else.  Currently used by the assembler
    400 .    when creating COFF files.  *}
    401 .  asymbol *   (*_bfd_make_debug_symbol)
    402 .    (bfd *, void *, unsigned long size);
    403 .#define bfd_read_minisymbols(b, d, m, s) \
    404 .  BFD_SEND (b, _read_minisymbols, (b, d, m, s))
    405 .  long        (*_read_minisymbols)
    406 .    (bfd *, bfd_boolean, void **, unsigned int *);
    407 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
    408 .  BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
    409 .  asymbol *   (*_minisymbol_to_symbol)
    410 .    (bfd *, bfd_boolean, const void *, asymbol *);
    411 .
    412 .  {* Routines for relocs.  *}
    413 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
    414 .  NAME##_get_reloc_upper_bound, \
    415 .  NAME##_canonicalize_reloc, \
    416 .  NAME##_bfd_reloc_type_lookup, \
    417 .  NAME##_bfd_reloc_name_lookup
    418 .
    419 .  long        (*_get_reloc_upper_bound) (bfd *, sec_ptr);
    420 .  long        (*_bfd_canonicalize_reloc)
    421 .    (bfd *, sec_ptr, arelent **, struct bfd_symbol **);
    422 .  {* See documentation on reloc types.  *}
    423 .  reloc_howto_type *
    424 .              (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
    425 .  reloc_howto_type *
    426 .              (*reloc_name_lookup) (bfd *, const char *);
    427 .
    428 .
    429 .  {* Routines used when writing an object file.  *}
    430 .#define BFD_JUMP_TABLE_WRITE(NAME) \
    431 .  NAME##_set_arch_mach, \
    432 .  NAME##_set_section_contents
    433 .
    434 .  bfd_boolean (*_bfd_set_arch_mach)
    435 .    (bfd *, enum bfd_architecture, unsigned long);
    436 .  bfd_boolean (*_bfd_set_section_contents)
    437 .    (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type);
    438 .
    439 .  {* Routines used by the linker.  *}
    440 .#define BFD_JUMP_TABLE_LINK(NAME) \
    441 .  NAME##_sizeof_headers, \
    442 .  NAME##_bfd_get_relocated_section_contents, \
    443 .  NAME##_bfd_relax_section, \
    444 .  NAME##_bfd_link_hash_table_create, \
    445 .  NAME##_bfd_link_add_symbols, \
    446 .  NAME##_bfd_link_just_syms, \
    447 .  NAME##_bfd_copy_link_hash_symbol_type, \
    448 .  NAME##_bfd_final_link, \
    449 .  NAME##_bfd_link_split_section, \
    450 .  NAME##_bfd_gc_sections, \
    451 .  NAME##_bfd_lookup_section_flags, \
    452 .  NAME##_bfd_merge_sections, \
    453 .  NAME##_bfd_is_group_section, \
    454 .  NAME##_bfd_discard_group, \
    455 .  NAME##_section_already_linked, \
    456 .  NAME##_bfd_define_common_symbol
    457 .
    458 .  int         (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
    459 .  bfd_byte *  (*_bfd_get_relocated_section_contents)
    460 .    (bfd *, struct bfd_link_info *, struct bfd_link_order *,
    461 .     bfd_byte *, bfd_boolean, struct bfd_symbol **);
    462 .
    463 .  bfd_boolean (*_bfd_relax_section)
    464 .    (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
    465 .
    466 .  {* Create a hash table for the linker.  Different backends store
    467 .     different information in this table.  *}
    468 .  struct bfd_link_hash_table *
    469 .              (*_bfd_link_hash_table_create) (bfd *);
    470 .
    471 .  {* Add symbols from this object file into the hash table.  *}
    472 .  bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
    473 .
    474 .  {* Indicate that we are only retrieving symbol values from this section.  *}
    475 .  void        (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
    476 .
    477 .  {* Copy the symbol type and other attributes for a linker script
    478 .     assignment of one symbol to another.  *}
    479 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
    480 .  BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
    481 .  void (*_bfd_copy_link_hash_symbol_type)
    482 .    (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *);
    483 .
    484 .  {* Do a link based on the link_order structures attached to each
    485 .     section of the BFD.  *}
    486 .  bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *);
    487 .
    488 .  {* Should this section be split up into smaller pieces during linking.  *}
    489 .  bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *);
    490 .
    491 .  {* Remove sections that are not referenced from the output.  *}
    492 .  bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
    493 .
    494 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
    495 .  bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *,
    496 .					     struct flag_info *,
    497 .					     asection *);
    498 .
    499 .  {* Attempt to merge SEC_MERGE sections.  *}
    500 .  bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
    501 .
    502 .  {* Is this section a member of a group?  *}
    503 .  bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
    504 .
    505 .  {* Discard members of a group.  *}
    506 .  bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *);
    507 .
    508 .  {* Check if SEC has been already linked during a reloceatable or
    509 .     final link.  *}
    510 .  bfd_boolean (*_section_already_linked) (bfd *, asection *,
    511 .					   struct bfd_link_info *);
    512 .
    513 .  {* Define a common symbol.  *}
    514 .  bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
    515 .					     struct bfd_link_hash_entry *);
    516 .
    517 .  {* Routines to handle dynamic symbols and relocs.  *}
    518 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
    519 .  NAME##_get_dynamic_symtab_upper_bound, \
    520 .  NAME##_canonicalize_dynamic_symtab, \
    521 .  NAME##_get_synthetic_symtab, \
    522 .  NAME##_get_dynamic_reloc_upper_bound, \
    523 .  NAME##_canonicalize_dynamic_reloc
    524 .
    525 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
    526 .  long        (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
    527 .  {* Read in the dynamic symbols.  *}
    528 .  long        (*_bfd_canonicalize_dynamic_symtab)
    529 .    (bfd *, struct bfd_symbol **);
    530 .  {* Create synthetized symbols.  *}
    531 .  long        (*_bfd_get_synthetic_symtab)
    532 .    (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **,
    533 .     struct bfd_symbol **);
    534 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
    535 .  long        (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
    536 .  {* Read in the dynamic relocs.  *}
    537 .  long        (*_bfd_canonicalize_dynamic_reloc)
    538 .    (bfd *, arelent **, struct bfd_symbol **);
    539 .
    540 
    541 A pointer to an alternative bfd_target in case the current one is not
    542 satisfactory.  This can happen when the target cpu supports both big
    543 and little endian code, and target chosen by the linker has the wrong
    544 endianness.  The function open_output() in ld/ldlang.c uses this field
    545 to find an alternative output format that is suitable.
    546 
    547 .  {* Opposite endian version of this target.  *}
    548 .  const struct bfd_target * alternative_target;
    549 .
    550 
    551 .  {* Data for use by back-end routines, which isn't
    552 .     generic enough to belong in this structure.  *}
    553 .  const void *backend_data;
    554 .
    555 .} bfd_target;
    556 .
    557 */
    558 
    559 /* All known xvecs (even those that don't compile on all systems).
    560    Alphabetized for easy reference.
    561    They are listed a second time below, since
    562    we can't intermix extern's and initializers.  */
    563 extern const bfd_target aarch64_elf32_be_vec;
    564 extern const bfd_target aarch64_elf32_le_vec;
    565 extern const bfd_target aarch64_elf64_be_vec;
    566 extern const bfd_target aarch64_elf64_le_vec;
    567 extern const bfd_target alpha_ecoff_le_vec;
    568 extern const bfd_target alpha_elf64_vec;
    569 extern const bfd_target alpha_elf64_fbsd_vec;
    570 extern const bfd_target alpha_nlm32_vec;
    571 extern const bfd_target alpha_vms_vec;
    572 extern const bfd_target alpha_vms_lib_txt_vec;
    573 extern const bfd_target am33_elf32_linux_vec;
    574 extern const bfd_target aout0_be_vec;
    575 extern const bfd_target aout64_vec;
    576 extern const bfd_target aout_vec;
    577 extern const bfd_target aout_adobe_vec;
    578 extern const bfd_target arc_elf32_be_vec;
    579 extern const bfd_target arc_elf32_le_vec;
    580 extern const bfd_target arm_aout_be_vec;
    581 extern const bfd_target arm_aout_le_vec;
    582 extern const bfd_target arm_aout_nbsd_vec;
    583 extern const bfd_target arm_aout_riscix_vec;
    584 extern const bfd_target arm_coff_be_vec;
    585 extern const bfd_target arm_coff_le_vec;
    586 extern const bfd_target arm_elf32_be_vec;
    587 extern const bfd_target arm_elf32_le_vec;
    588 extern const bfd_target arm_elf32_nacl_be_vec;
    589 extern const bfd_target arm_elf32_nacl_le_vec;
    590 extern const bfd_target arm_elf32_symbian_be_vec;
    591 extern const bfd_target arm_elf32_symbian_le_vec;
    592 extern const bfd_target arm_elf32_vxworks_be_vec;
    593 extern const bfd_target arm_elf32_vxworks_le_vec;
    594 extern const bfd_target arm_pe_be_vec;
    595 extern const bfd_target arm_pe_le_vec;
    596 extern const bfd_target arm_pe_epoc_be_vec;
    597 extern const bfd_target arm_pe_epoc_le_vec;
    598 extern const bfd_target arm_pe_wince_be_vec;
    599 extern const bfd_target arm_pe_wince_le_vec;
    600 extern const bfd_target arm_pei_be_vec;
    601 extern const bfd_target arm_pei_le_vec;
    602 extern const bfd_target arm_pei_epoc_be_vec;
    603 extern const bfd_target arm_pei_epoc_le_vec;
    604 extern const bfd_target arm_pei_wince_be_vec;
    605 extern const bfd_target arm_pei_wince_le_vec;
    606 extern const bfd_target avr_elf32_vec;
    607 extern const bfd_target bfin_elf32_vec;
    608 extern const bfd_target bfin_elf32_fdpic_vec;
    609 extern const bfd_target bout_be_vec;
    610 extern const bfd_target bout_le_vec;
    611 extern const bfd_target cr16_elf32_vec;
    612 extern const bfd_target cr16c_elf32_vec;
    613 extern const bfd_target cris_aout_vec;
    614 extern const bfd_target cris_elf32_vec;
    615 extern const bfd_target cris_elf32_us_vec;
    616 extern const bfd_target crx_elf32_vec;
    617 extern const bfd_target d10v_elf32_vec;
    618 extern const bfd_target d30v_elf32_vec;
    619 extern const bfd_target dlx_elf32_be_vec;
    620 extern const bfd_target elf32_be_vec;
    621 extern const bfd_target elf32_le_vec;
    622 extern const bfd_target elf64_be_vec;
    623 extern const bfd_target elf64_le_vec;
    624 extern const bfd_target epiphany_elf32_vec;
    625 extern const bfd_target fr30_elf32_vec;
    626 extern const bfd_target frv_elf32_vec;
    627 extern const bfd_target frv_elf32_fdpic_vec;
    628 extern const bfd_target h8300_coff_vec;
    629 extern const bfd_target h8300_elf32_vec;
    630 extern const bfd_target h8500_coff_vec;
    631 extern const bfd_target hppa_elf32_vec;
    632 extern const bfd_target hppa_elf32_linux_vec;
    633 extern const bfd_target hppa_elf32_nbsd_vec;
    634 extern const bfd_target hppa_elf64_vec;
    635 extern const bfd_target hppa_elf64_linux_vec;
    636 extern const bfd_target hppa_som_vec;
    637 extern const bfd_target i370_elf32_vec;
    638 extern const bfd_target i386_aout_vec;
    639 extern const bfd_target i386_aout_bsd_vec;
    640 extern const bfd_target i386_aout_dynix_vec;
    641 extern const bfd_target i386_aout_fbsd_vec;
    642 extern const bfd_target i386_aout_linux_vec;
    643 extern const bfd_target i386_aout_lynx_vec;
    644 extern const bfd_target i386_aout_mach3_vec;
    645 extern const bfd_target i386_aout_nbsd_vec;
    646 extern const bfd_target i386_aout_os9k_vec;
    647 extern const bfd_target i386_coff_vec;
    648 extern const bfd_target i386_coff_go32_vec;
    649 extern const bfd_target i386_coff_go32stubbed_vec;
    650 extern const bfd_target i386_coff_lynx_vec;
    651 extern const bfd_target i386_elf32_vec;
    652 extern const bfd_target i386_elf32_fbsd_vec;
    653 extern const bfd_target i386_elf32_nacl_vec;
    654 extern const bfd_target i386_elf32_sol2_vec;
    655 extern const bfd_target i386_elf32_vxworks_vec;
    656 extern const bfd_target i386_mach_o_vec;
    657 extern const bfd_target i386_msdos_vec;
    658 extern const bfd_target i386_nlm32_vec;
    659 extern const bfd_target i386_pe_vec;
    660 extern const bfd_target i386_pei_vec;
    661 extern const bfd_target i860_coff_vec;
    662 extern const bfd_target i860_elf32_vec;
    663 extern const bfd_target i860_elf32_le_vec;
    664 extern const bfd_target i960_elf32_vec;
    665 extern const bfd_target ia64_elf32_be_vec;
    666 extern const bfd_target ia64_elf32_hpux_be_vec;
    667 extern const bfd_target ia64_elf64_be_vec;
    668 extern const bfd_target ia64_elf64_le_vec;
    669 extern const bfd_target ia64_elf64_hpux_be_vec;
    670 extern const bfd_target ia64_elf64_vms_vec;
    671 extern const bfd_target ia64_pei_vec;
    672 extern const bfd_target icoff_be_vec;
    673 extern const bfd_target icoff_le_vec;
    674 extern const bfd_target ieee_vec;
    675 extern const bfd_target ip2k_elf32_vec;
    676 extern const bfd_target iq2000_elf32_vec;
    677 extern const bfd_target k1om_elf64_vec;
    678 extern const bfd_target k1om_elf64_fbsd_vec;
    679 extern const bfd_target l1om_elf64_vec;
    680 extern const bfd_target l1om_elf64_fbsd_vec;
    681 extern const bfd_target lm32_elf32_vec;
    682 extern const bfd_target lm32_elf32_fdpic_vec;
    683 extern const bfd_target m32c_elf32_vec;
    684 extern const bfd_target m32r_elf32_vec;
    685 extern const bfd_target m32r_elf32_le_vec;
    686 extern const bfd_target m32r_elf32_linux_vec;
    687 extern const bfd_target m32r_elf32_linux_le_vec;
    688 extern const bfd_target m68hc11_elf32_vec;
    689 extern const bfd_target m68hc12_elf32_vec;
    690 extern const bfd_target m68k_aout_4knbsd_vec;
    691 extern const bfd_target m68k_aout_hp300bsd_vec;
    692 extern const bfd_target m68k_aout_hp300hpux_vec;
    693 extern const bfd_target m68k_aout_linux_vec;
    694 extern const bfd_target m68k_aout_nbsd_vec;
    695 extern const bfd_target m68k_aout_newsos3_vec;
    696 extern const bfd_target m68k_coff_vec;
    697 extern const bfd_target m68k_coff_apollo_vec;
    698 extern const bfd_target m68k_coff_aux_vec;
    699 extern const bfd_target m68k_coff_sysv_vec;
    700 extern const bfd_target m68k_coff_un_vec;
    701 extern const bfd_target m68k_elf32_vec;
    702 extern const bfd_target m68k_versados_vec;
    703 extern const bfd_target m88k_aout_mach3_vec;
    704 extern const bfd_target m88k_aout_obsd_vec;
    705 extern const bfd_target m88k_coff_bcs_vec;
    706 extern const bfd_target m88k_elf32_vec;
    707 extern const bfd_target mach_o_be_vec;
    708 extern const bfd_target mach_o_le_vec;
    709 extern const bfd_target mach_o_fat_vec;
    710 extern const bfd_target mcore_elf32_be_vec;
    711 extern const bfd_target mcore_elf32_le_vec;
    712 extern const bfd_target mcore_pe_be_vec;
    713 extern const bfd_target mcore_pe_le_vec;
    714 extern const bfd_target mcore_pei_be_vec;
    715 extern const bfd_target mcore_pei_le_vec;
    716 extern const bfd_target mep_elf32_vec;
    717 extern const bfd_target mep_elf32_le_vec;
    718 extern const bfd_target metag_elf32_vec;
    719 extern const bfd_target microblaze_elf32_vec;
    720 extern const bfd_target microblaze_elf32_le_vec;
    721 extern const bfd_target mips_aout_be_vec;
    722 extern const bfd_target mips_aout_le_vec;
    723 extern const bfd_target mips_ecoff_be_vec;
    724 extern const bfd_target mips_ecoff_le_vec;
    725 extern const bfd_target mips_ecoff_bele_vec;
    726 extern const bfd_target mips_elf32_be_vec;
    727 extern const bfd_target mips_elf32_le_vec;
    728 extern const bfd_target mips_elf32_n_be_vec;
    729 extern const bfd_target mips_elf32_n_le_vec;
    730 extern const bfd_target mips_elf32_ntrad_be_vec;
    731 extern const bfd_target mips_elf32_ntrad_le_vec;
    732 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
    733 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
    734 extern const bfd_target mips_elf32_trad_be_vec;
    735 extern const bfd_target mips_elf32_trad_le_vec;
    736 extern const bfd_target mips_elf32_tradfbsd_be_vec;
    737 extern const bfd_target mips_elf32_tradfbsd_le_vec;
    738 extern const bfd_target mips_elf32_vxworks_be_vec;
    739 extern const bfd_target mips_elf32_vxworks_le_vec;
    740 extern const bfd_target mips_elf64_be_vec;
    741 extern const bfd_target mips_elf64_le_vec;
    742 extern const bfd_target mips_elf64_trad_be_vec;
    743 extern const bfd_target mips_elf64_trad_le_vec;
    744 extern const bfd_target mips_elf64_tradfbsd_be_vec;
    745 extern const bfd_target mips_elf64_tradfbsd_le_vec;
    746 extern const bfd_target mips_pe_le_vec;
    747 extern const bfd_target mips_pei_le_vec;
    748 extern const bfd_target mmix_elf64_vec;
    749 extern const bfd_target mmix_mmo_vec;
    750 extern const bfd_target mn10200_elf32_vec;
    751 extern const bfd_target mn10300_elf32_vec;
    752 extern const bfd_target moxie_elf32_be_vec;
    753 extern const bfd_target moxie_elf32_le_vec;
    754 extern const bfd_target msp430_elf32_vec;
    755 extern const bfd_target msp430_elf32_ti_vec;
    756 extern const bfd_target mt_elf32_vec;
    757 extern const bfd_target nds32_elf32_be_vec;
    758 extern const bfd_target nds32_elf32_le_vec;
    759 extern const bfd_target nds32_elf32_linux_be_vec;
    760 extern const bfd_target nds32_elf32_linux_le_vec;
    761 extern const bfd_target nios2_elf32_be_vec;
    762 extern const bfd_target nios2_elf32_le_vec;
    763 extern const bfd_target ns32k_aout_pc532mach_vec;
    764 extern const bfd_target ns32k_aout_pc532nbsd_vec;
    765 extern const bfd_target oasys_vec;
    766 extern const bfd_target or1k_elf32_vec;
    767 extern const bfd_target pdp11_aout_vec;
    768 extern const bfd_target pef_vec;
    769 extern const bfd_target pef_xlib_vec;
    770 extern const bfd_target pj_elf32_vec;
    771 extern const bfd_target pj_elf32_le_vec;
    772 extern const bfd_target plugin_vec;
    773 extern const bfd_target powerpc_boot_vec;
    774 extern const bfd_target powerpc_elf32_vec;
    775 extern const bfd_target powerpc_elf32_le_vec;
    776 extern const bfd_target powerpc_elf32_fbsd_vec;
    777 extern const bfd_target powerpc_elf32_vxworks_vec;
    778 extern const bfd_target powerpc_elf64_vec;
    779 extern const bfd_target powerpc_elf64_le_vec;
    780 extern const bfd_target powerpc_elf64_fbsd_vec;
    781 extern const bfd_target powerpc_nlm32_vec;
    782 extern const bfd_target powerpc_pe_vec;
    783 extern const bfd_target powerpc_pe_le_vec;
    784 extern const bfd_target powerpc_pei_vec;
    785 extern const bfd_target powerpc_pei_le_vec;
    786 extern const bfd_target powerpc_xcoff_vec;
    787 extern const bfd_target rl78_elf32_vec;
    788 extern const bfd_target rs6000_xcoff64_vec;
    789 extern const bfd_target rs6000_xcoff64_aix_vec;
    790 extern const bfd_target rs6000_xcoff_vec;
    791 extern const bfd_target rx_elf32_be_vec;
    792 extern const bfd_target rx_elf32_be_ns_vec;
    793 extern const bfd_target rx_elf32_le_vec;
    794 extern const bfd_target s390_elf32_vec;
    795 extern const bfd_target s390_elf64_vec;
    796 extern const bfd_target score_elf32_be_vec;
    797 extern const bfd_target score_elf32_le_vec;
    798 extern const bfd_target sh64_elf32_vec;
    799 extern const bfd_target sh64_elf32_le_vec;
    800 extern const bfd_target sh64_elf32_linux_vec;
    801 extern const bfd_target sh64_elf32_linux_be_vec;
    802 extern const bfd_target sh64_elf32_nbsd_vec;
    803 extern const bfd_target sh64_elf32_nbsd_le_vec;
    804 extern const bfd_target sh64_elf64_vec;
    805 extern const bfd_target sh64_elf64_le_vec;
    806 extern const bfd_target sh64_elf64_linux_vec;
    807 extern const bfd_target sh64_elf64_linux_be_vec;
    808 extern const bfd_target sh64_elf64_nbsd_vec;
    809 extern const bfd_target sh64_elf64_nbsd_le_vec;
    810 extern const bfd_target sh_coff_vec;
    811 extern const bfd_target sh_coff_le_vec;
    812 extern const bfd_target sh_coff_small_vec;
    813 extern const bfd_target sh_coff_small_le_vec;
    814 extern const bfd_target sh_elf32_vec;
    815 extern const bfd_target sh_elf32_le_vec;
    816 extern const bfd_target sh_elf32_fdpic_be_vec;
    817 extern const bfd_target sh_elf32_fdpic_le_vec;
    818 extern const bfd_target sh_elf32_linux_vec;
    819 extern const bfd_target sh_elf32_linux_be_vec;
    820 extern const bfd_target sh_elf32_nbsd_vec;
    821 extern const bfd_target sh_elf32_nbsd_le_vec;
    822 extern const bfd_target sh_elf32_symbian_le_vec;
    823 extern const bfd_target sh_elf32_vxworks_vec;
    824 extern const bfd_target sh_elf32_vxworks_le_vec;
    825 extern const bfd_target sh_pe_le_vec;
    826 extern const bfd_target sh_pei_le_vec;
    827 extern const bfd_target sparc_aout_le_vec;
    828 extern const bfd_target sparc_aout_linux_vec;
    829 extern const bfd_target sparc_aout_lynx_vec;
    830 extern const bfd_target sparc_aout_nbsd_vec;
    831 extern const bfd_target sparc_aout_sunos_be_vec;
    832 extern const bfd_target sparc_coff_vec;
    833 extern const bfd_target sparc_coff_lynx_vec;
    834 extern const bfd_target sparc_elf32_vec;
    835 extern const bfd_target sparc_elf32_sol2_vec;
    836 extern const bfd_target sparc_elf32_vxworks_vec;
    837 extern const bfd_target sparc_elf64_vec;
    838 extern const bfd_target sparc_elf64_fbsd_vec;
    839 extern const bfd_target sparc_elf64_sol2_vec;
    840 extern const bfd_target sparc_nlm32_vec;
    841 extern const bfd_target spu_elf32_vec;
    842 extern const bfd_target sym_vec;
    843 extern const bfd_target tic30_aout_vec;
    844 extern const bfd_target tic30_coff_vec;
    845 extern const bfd_target tic4x_coff0_vec;
    846 extern const bfd_target tic4x_coff0_beh_vec;
    847 extern const bfd_target tic4x_coff1_vec;
    848 extern const bfd_target tic4x_coff1_beh_vec;
    849 extern const bfd_target tic4x_coff2_vec;
    850 extern const bfd_target tic4x_coff2_beh_vec;
    851 extern const bfd_target tic54x_coff0_vec;
    852 extern const bfd_target tic54x_coff0_beh_vec;
    853 extern const bfd_target tic54x_coff1_vec;
    854 extern const bfd_target tic54x_coff1_beh_vec;
    855 extern const bfd_target tic54x_coff2_vec;
    856 extern const bfd_target tic54x_coff2_beh_vec;
    857 extern const bfd_target tic6x_elf32_be_vec;
    858 extern const bfd_target tic6x_elf32_le_vec;
    859 extern const bfd_target tic6x_elf32_c6000_be_vec;
    860 extern const bfd_target tic6x_elf32_c6000_le_vec;
    861 extern const bfd_target tic6x_elf32_linux_be_vec;
    862 extern const bfd_target tic6x_elf32_linux_le_vec;
    863 extern const bfd_target tic80_coff_vec;
    864 extern const bfd_target tilegx_elf32_be_vec;
    865 extern const bfd_target tilegx_elf32_le_vec;
    866 extern const bfd_target tilegx_elf64_be_vec;
    867 extern const bfd_target tilegx_elf64_le_vec;
    868 extern const bfd_target tilepro_elf32_vec;
    869 extern const bfd_target v800_elf32_vec;
    870 extern const bfd_target v850_elf32_vec;
    871 extern const bfd_target vax_aout_1knbsd_vec;
    872 extern const bfd_target vax_aout_bsd_vec;
    873 extern const bfd_target vax_aout_nbsd_vec;
    874 extern const bfd_target vax_elf32_vec;
    875 extern const bfd_target w65_coff_vec;
    876 extern const bfd_target we32k_coff_vec;
    877 extern const bfd_target x86_64_coff_vec;
    878 extern const bfd_target x86_64_elf32_vec;
    879 extern const bfd_target x86_64_elf32_nacl_vec;
    880 extern const bfd_target x86_64_elf64_vec;
    881 extern const bfd_target x86_64_elf64_fbsd_vec;
    882 extern const bfd_target x86_64_elf64_nacl_vec;
    883 extern const bfd_target x86_64_elf64_sol2_vec;
    884 extern const bfd_target x86_64_mach_o_vec;
    885 extern const bfd_target x86_64_pe_vec;
    886 extern const bfd_target x86_64_pe_be_vec;
    887 extern const bfd_target x86_64_pei_vec;
    888 extern const bfd_target xc16x_elf32_vec;
    889 extern const bfd_target xgate_elf32_vec;
    890 extern const bfd_target xstormy16_elf32_vec;
    891 extern const bfd_target xtensa_elf32_be_vec;
    892 extern const bfd_target xtensa_elf32_le_vec;
    893 extern const bfd_target z80_coff_vec;
    894 extern const bfd_target z8k_coff_vec;
    895 
    896 /* These are always included.  */
    897 extern const bfd_target srec_vec;
    898 extern const bfd_target symbolsrec_vec;
    899 extern const bfd_target verilog_vec;
    900 extern const bfd_target tekhex_vec;
    901 extern const bfd_target binary_vec;
    902 extern const bfd_target ihex_vec;
    903 
    904 /* All of the xvecs for core files.  */
    905 extern const bfd_target core_aix386_vec;
    906 extern const bfd_target core_cisco_be_vec;
    907 extern const bfd_target core_cisco_le_vec;
    908 extern const bfd_target core_hppabsd_vec;
    909 extern const bfd_target core_hpux_vec;
    910 extern const bfd_target core_irix_vec;
    911 extern const bfd_target core_netbsd_vec;
    912 extern const bfd_target core_osf_vec;
    913 extern const bfd_target core_ptrace_vec;
    914 extern const bfd_target core_sco5_vec;
    915 extern const bfd_target core_trad_vec;
    916 
    917 static const bfd_target * const _bfd_target_vector[] =
    918 {
    919 #ifdef SELECT_VECS
    920 
    921 	SELECT_VECS,
    922 
    923 #else /* not SELECT_VECS */
    924 
    925 #ifdef DEFAULT_VECTOR
    926 	&DEFAULT_VECTOR,
    927 #endif
    928 	/* This list is alphabetized to make it easy to compare
    929 	   with other vector lists -- the decls above and
    930 	   the case statement in configure.ac.
    931 	   Try to keep it in order when adding new targets, and
    932 	   use a name of the form <cpu>_<format>_<other>_<endian>_vec.
    933 	   Note that sorting is done as if _<endian>_vec wasn't present.
    934 	   Vectors that don't compile on all systems, or aren't finished,
    935 	   should have an entry here with #if 0 around it, to show that
    936 	   it wasn't omitted by mistake.  */
    937 #ifdef BFD64
    938 	&aarch64_elf32_be_vec,
    939 	&aarch64_elf32_le_vec,
    940 	&aarch64_elf64_be_vec,
    941 	&aarch64_elf64_le_vec,
    942 #endif
    943 
    944 #ifdef BFD64
    945 	&alpha_ecoff_le_vec,
    946 	&alpha_elf64_vec,
    947 	&alpha_elf64_fbsd_vec,
    948 	&alpha_nlm32_vec,
    949 	&alpha_vms_vec,
    950 #endif
    951 	&alpha_vms_lib_txt_vec,
    952 
    953 	&am33_elf32_linux_vec,
    954 
    955 	&aout0_be_vec,
    956 #ifdef BFD64
    957 	&aout64_vec,	/* Only compiled if host has long-long support.  */
    958 #endif
    959 #if 0
    960 	/* Since a.out files lack decent magic numbers, no way to recognize
    961 	   which kind of a.out file it is.  */
    962 	&aout_vec,
    963 #endif
    964 	&aout_adobe_vec,
    965 
    966 	&arc_elf32_be_vec,
    967 	&arc_elf32_le_vec,
    968 
    969 #if 0
    970 	/* We have no way of distinguishing these from other a.out variants.  */
    971 	&arm_aout_be_vec,
    972 	&arm_aout_le_vec,
    973 #endif
    974 	&arm_aout_nbsd_vec,
    975 #if 0
    976 	/* We have no way of distinguishing these from other a.out variants.  */
    977 	&arm_aout_riscix_vec,
    978 #endif
    979 	&arm_coff_be_vec,
    980 	&arm_coff_le_vec,
    981 	&arm_elf32_be_vec,
    982 	&arm_elf32_le_vec,
    983 	&arm_elf32_symbian_be_vec,
    984 	&arm_elf32_symbian_le_vec,
    985 	&arm_elf32_vxworks_be_vec,
    986 	&arm_elf32_vxworks_le_vec,
    987 	&arm_pe_be_vec,
    988 	&arm_pe_le_vec,
    989 	&arm_pe_epoc_be_vec,
    990 	&arm_pe_epoc_le_vec,
    991 	&arm_pe_wince_be_vec,
    992 	&arm_pe_wince_le_vec,
    993 	&arm_pei_be_vec,
    994 	&arm_pei_le_vec,
    995 	&arm_pei_epoc_be_vec,
    996 	&arm_pei_epoc_le_vec,
    997 	&arm_pei_wince_be_vec,
    998 	&arm_pei_wince_le_vec,
    999 
   1000 	&avr_elf32_vec,
   1001 
   1002 	&bfin_elf32_vec,
   1003 	&bfin_elf32_fdpic_vec,
   1004 
   1005 	&bout_be_vec,
   1006 	&bout_le_vec,
   1007 
   1008 	&cr16_elf32_vec,
   1009 	&cr16c_elf32_vec,
   1010 
   1011 	&cris_aout_vec,
   1012 	&cris_elf32_vec,
   1013 	&cris_elf32_us_vec,
   1014 
   1015 	&crx_elf32_vec,
   1016 
   1017 	&d10v_elf32_vec,
   1018 	&d30v_elf32_vec,
   1019 
   1020 	&dlx_elf32_be_vec,
   1021 
   1022 	/* This, and other vectors, may not be used in any *.mt configuration.
   1023 	   But that does not mean they are unnecessary.  If configured with
   1024 	   --enable-targets=all, objdump or gdb should be able to examine
   1025 	   the file even if we don't recognize the machine type.  */
   1026 	&elf32_be_vec,
   1027 	&elf32_le_vec,
   1028 #ifdef BFD64
   1029 	&elf64_be_vec,
   1030 	&elf64_le_vec,
   1031 #endif
   1032 
   1033 	&epiphany_elf32_vec,
   1034 
   1035 	&fr30_elf32_vec,
   1036 
   1037 	&frv_elf32_vec,
   1038 	&frv_elf32_fdpic_vec,
   1039 
   1040 	&h8300_coff_vec,
   1041 	&h8300_elf32_vec,
   1042 	&h8500_coff_vec,
   1043 
   1044 	&hppa_elf32_vec,
   1045 	&hppa_elf32_linux_vec,
   1046 	&hppa_elf32_nbsd_vec,
   1047 #ifdef BFD64
   1048 	&hppa_elf64_vec,
   1049 	&hppa_elf64_linux_vec,
   1050 #endif
   1051 	&hppa_som_vec,
   1052 
   1053 	&i370_elf32_vec,
   1054 
   1055 	&i386_aout_vec,
   1056 	&i386_aout_bsd_vec,
   1057 #if 0
   1058 	&i386_aout_dynix_vec,
   1059 #endif
   1060 	&i386_aout_fbsd_vec,
   1061 #if 0
   1062 	/* Since a.out files lack decent magic numbers, no way to recognize
   1063 	   which kind of a.out file it is.  */
   1064 	&i386_aout_linux_vec,
   1065 #endif
   1066 	&i386_aout_lynx_vec,
   1067 #if 0
   1068 	/* No distinguishing features for Mach 3 executables.  */
   1069 	&i386_aout_mach3_vec,
   1070 #endif
   1071 	&i386_aout_nbsd_vec,
   1072 	&i386_aout_os9k_vec,
   1073 	&i386_coff_vec,
   1074 	&i386_coff_go32_vec,
   1075 	&i386_coff_go32stubbed_vec,
   1076 	&i386_coff_lynx_vec,
   1077 	&i386_elf32_vec,
   1078 	&i386_elf32_fbsd_vec,
   1079 	&i386_elf32_nacl_vec,
   1080 	&i386_elf32_sol2_vec,
   1081 	&i386_elf32_vxworks_vec,
   1082 	&i386_mach_o_vec,
   1083 	&i386_msdos_vec,
   1084 	&i386_nlm32_vec,
   1085 	&i386_pe_vec,
   1086 	&i386_pei_vec,
   1087 
   1088 	&i860_coff_vec,
   1089 	&i860_elf32_vec,
   1090 	&i860_elf32_le_vec,
   1091 
   1092 	&i960_elf32_vec,
   1093 
   1094 #ifdef BFD64
   1095 #if 0
   1096 	&ia64_elf32_be_vec,
   1097 #endif
   1098 	&ia64_elf32_hpux_be_vec,
   1099 	&ia64_elf64_be_vec,
   1100 	&ia64_elf64_le_vec,
   1101 	&ia64_elf64_hpux_be_vec,
   1102 	&ia64_elf64_vms_vec,
   1103 	&ia64_pei_vec,
   1104 #endif
   1105 
   1106 	&icoff_be_vec,
   1107 	&icoff_le_vec,
   1108 
   1109 	&ieee_vec,
   1110 
   1111 	&ip2k_elf32_vec,
   1112 	&iq2000_elf32_vec,
   1113 
   1114 #ifdef BFD64
   1115 	&k1om_elf64_vec,
   1116 	&k1om_elf64_fbsd_vec,
   1117 	&l1om_elf64_vec,
   1118 	&l1om_elf64_fbsd_vec,
   1119 #endif
   1120 
   1121 	&lm32_elf32_vec,
   1122 
   1123 	&m32c_elf32_vec,
   1124 
   1125 	&m32r_elf32_vec,
   1126 	&m32r_elf32_le_vec,
   1127 	&m32r_elf32_linux_vec,
   1128 	&m32r_elf32_linux_le_vec,
   1129 
   1130 	&m68hc11_elf32_vec,
   1131 	&m68hc12_elf32_vec,
   1132 
   1133 #if 0
   1134 	&m68k_aout_4knbsd_vec,
   1135 	/* Clashes with sparc_aout_sunos_be_vec magic no.  */
   1136 	&m68k_aout_hp300bsd_vec,
   1137 #endif
   1138 	&m68k_aout_hp300hpux_vec,
   1139 #if 0
   1140 	/* Since a.out files lack decent magic numbers, no way to recognize
   1141 	   which kind of a.out file it is.  */
   1142 	&m68k_aout_linux_vec,
   1143 #endif
   1144 	&m68k_aout_nbsd_vec,
   1145 	&m68k_aout_newsos3_vec,
   1146 	&m68k_coff_vec,
   1147 #if 0
   1148 	&m68k_coff_apollo_vec,
   1149 	&m68k_coff_aux_vec,
   1150 #endif
   1151 	&m68k_coff_sysv_vec,
   1152 	&m68k_coff_un_vec,
   1153 	&m68k_elf32_vec,
   1154 	&m68k_versados_vec,
   1155 
   1156 	&m88k_aout_mach3_vec,
   1157 	&m88k_aout_obsd_vec,
   1158 	&m88k_coff_bcs_vec,
   1159 	&m88k_elf32_vec,
   1160 
   1161 	&mach_o_be_vec,
   1162 	&mach_o_le_vec,
   1163 	&mach_o_fat_vec,
   1164 
   1165 	&mcore_elf32_be_vec,
   1166 	&mcore_elf32_le_vec,
   1167 	&mcore_pe_be_vec,
   1168 	&mcore_pe_le_vec,
   1169 	&mcore_pei_be_vec,
   1170 	&mcore_pei_le_vec,
   1171 
   1172 	&mep_elf32_vec,
   1173 
   1174 	&metag_elf32_vec,
   1175 
   1176 	&microblaze_elf32_vec,
   1177 
   1178 #if 0
   1179 	/* No one seems to use this.  */
   1180 	&mips_aout_be_vec,
   1181 #endif
   1182 	&mips_aout_le_vec,
   1183 	&mips_ecoff_be_vec,
   1184 	&mips_ecoff_le_vec,
   1185 	&mips_ecoff_bele_vec,
   1186 #ifdef BFD64
   1187 	&mips_elf32_be_vec,
   1188 	&mips_elf32_le_vec,
   1189 	&mips_elf32_n_be_vec,
   1190 	&mips_elf32_n_le_vec,
   1191 	&mips_elf32_ntrad_be_vec,
   1192 	&mips_elf32_ntrad_le_vec,
   1193 	&mips_elf32_ntradfbsd_be_vec,
   1194 	&mips_elf32_ntradfbsd_le_vec,
   1195 	&mips_elf32_trad_be_vec,
   1196 	&mips_elf32_trad_le_vec,
   1197 	&mips_elf32_tradfbsd_be_vec,
   1198 	&mips_elf32_tradfbsd_le_vec,
   1199 	&mips_elf32_vxworks_be_vec,
   1200 	&mips_elf32_vxworks_le_vec,
   1201 	&mips_elf64_be_vec,
   1202 	&mips_elf64_le_vec,
   1203 	&mips_elf64_trad_be_vec,
   1204 	&mips_elf64_trad_le_vec,
   1205 	&mips_elf64_tradfbsd_be_vec,
   1206 	&mips_elf64_tradfbsd_le_vec,
   1207 #endif
   1208 	&mips_pe_le_vec,
   1209 	&mips_pei_le_vec,
   1210 
   1211 #ifdef BFD64
   1212 	&mmix_elf64_vec,
   1213 	&mmix_mmo_vec,
   1214 #endif
   1215 
   1216 	&mn10200_elf32_vec,
   1217 	&mn10300_elf32_vec,
   1218 
   1219 	&moxie_elf32_be_vec,
   1220 	&moxie_elf32_le_vec,
   1221 
   1222 	&msp430_elf32_vec,
   1223 	&msp430_elf32_ti_vec,
   1224 
   1225 	&mt_elf32_vec,
   1226 
   1227 	&nds32_elf32_be_vec,
   1228 	&nds32_elf32_le_vec,
   1229 	&nds32_elf32_linux_be_vec,
   1230 	&nds32_elf32_linux_le_vec,
   1231 
   1232 	&nios2_elf32_be_vec,
   1233 	&nios2_elf32_le_vec,
   1234 
   1235 	&ns32k_aout_pc532mach_vec,
   1236 	&ns32k_aout_pc532nbsd_vec,
   1237 
   1238 #if 0
   1239 	/* We have no oasys tools anymore, so we can't test any of this
   1240 	   anymore. If you want to test the stuff yourself, go ahead...
   1241 	   steve (at) cygnus.com
   1242 	   Worse, since there is no magic number for archives, there
   1243 	   can be annoying target mis-matches.  */
   1244 	&oasys_vec,
   1245 #endif
   1246 
   1247 	&or1k_elf32_vec,
   1248 
   1249 	&pdp11_aout_vec,
   1250 
   1251 	&pef_vec,
   1252 	&pef_xlib_vec,
   1253 
   1254 	&pj_elf32_vec,
   1255 	&pj_elf32_le_vec,
   1256 
   1257 #if BFD_SUPPORTS_PLUGINS
   1258 	&plugin_vec,
   1259 #endif
   1260 
   1261 	&powerpc_boot_vec,
   1262 	&powerpc_elf32_vec,
   1263 	&powerpc_elf32_le_vec,
   1264 	&powerpc_elf32_fbsd_vec,
   1265 	&powerpc_elf32_vxworks_vec,
   1266 #ifdef BFD64
   1267 	&powerpc_elf64_vec,
   1268 	&powerpc_elf64_le_vec,
   1269 	&powerpc_elf64_fbsd_vec,
   1270 #endif
   1271 	&powerpc_nlm32_vec,
   1272 	&powerpc_pe_vec,
   1273 	&powerpc_pe_le_vec,
   1274 	&powerpc_pei_vec,
   1275 	&powerpc_pei_le_vec,
   1276 #if 0
   1277 	/* This has the same magic number as RS/6000.  */
   1278 	&powerpc_xcoff_vec,
   1279 #endif
   1280 
   1281 	&rl78_elf32_vec,
   1282 
   1283 #ifdef BFD64
   1284 	&rs6000_xcoff64_vec,
   1285 	&rs6000_xcoff64_aix_vec,
   1286 #endif
   1287 	&rs6000_xcoff_vec,
   1288 
   1289 	&rx_elf32_be_vec,
   1290 	&rx_elf32_be_ns_vec,
   1291 	&rx_elf32_le_vec,
   1292 
   1293 	&s390_elf32_vec,
   1294 #ifdef BFD64
   1295 	&s390_elf64_vec,
   1296 #endif
   1297 
   1298 #ifdef BFD64
   1299 	&score_elf32_be_vec,
   1300 	&score_elf32_le_vec,
   1301 #endif
   1302 
   1303 #ifdef BFD64
   1304 	&sh64_elf32_vec,
   1305 	&sh64_elf32_le_vec,
   1306 	&sh64_elf32_linux_vec,
   1307 	&sh64_elf32_linux_be_vec,
   1308 	&sh64_elf32_nbsd_vec,
   1309 	&sh64_elf32_nbsd_le_vec,
   1310 	&sh64_elf64_vec,
   1311 	&sh64_elf64_le_vec,
   1312 	&sh64_elf64_linux_vec,
   1313 	&sh64_elf64_linux_be_vec,
   1314 	&sh64_elf64_nbsd_vec,
   1315 	&sh64_elf64_nbsd_le_vec,
   1316 #endif
   1317 	&sh_coff_vec,
   1318 	&sh_coff_le_vec,
   1319 	&sh_coff_small_vec,
   1320 	&sh_coff_small_le_vec,
   1321 	&sh_elf32_vec,
   1322 	&sh_elf32_le_vec,
   1323 	&sh_elf32_fdpic_be_vec,
   1324 	&sh_elf32_fdpic_le_vec,
   1325 	&sh_elf32_linux_vec,
   1326 	&sh_elf32_linux_be_vec,
   1327 	&sh_elf32_nbsd_vec,
   1328 	&sh_elf32_nbsd_le_vec,
   1329 	&sh_elf32_symbian_le_vec,
   1330 	&sh_elf32_vxworks_vec,
   1331 	&sh_elf32_vxworks_le_vec,
   1332 	&sh_pe_le_vec,
   1333 	&sh_pei_le_vec,
   1334 
   1335 	&sparc_aout_le_vec,
   1336 	&sparc_aout_linux_vec,
   1337 	&sparc_aout_lynx_vec,
   1338 	&sparc_aout_nbsd_vec,
   1339 	&sparc_aout_sunos_be_vec,
   1340 	&sparc_coff_vec,
   1341 	&sparc_coff_lynx_vec,
   1342 	&sparc_elf32_vec,
   1343 	&sparc_elf32_sol2_vec,
   1344 	&sparc_elf32_vxworks_vec,
   1345 #ifdef BFD64
   1346 	&sparc_elf64_vec,
   1347 	&sparc_elf64_fbsd_vec,
   1348 	&sparc_elf64_sol2_vec,
   1349 #endif
   1350 	&sparc_nlm32_vec,
   1351 
   1352 	&spu_elf32_vec,
   1353 
   1354 	&sym_vec,
   1355 
   1356 	&tic30_aout_vec,
   1357 	&tic30_coff_vec,
   1358 	&tic54x_coff0_beh_vec,
   1359 	&tic54x_coff0_vec,
   1360 	&tic54x_coff1_beh_vec,
   1361 	&tic54x_coff1_vec,
   1362 	&tic54x_coff2_beh_vec,
   1363 	&tic54x_coff2_vec,
   1364 	&tic6x_elf32_be_vec,
   1365 	&tic6x_elf32_le_vec,
   1366 	&tic80_coff_vec,
   1367 
   1368 	&tilegx_elf32_be_vec,
   1369 	&tilegx_elf32_le_vec,
   1370 #ifdef BFD64
   1371 	&tilegx_elf64_be_vec,
   1372 	&tilegx_elf64_le_vec,
   1373 #endif
   1374 	&tilepro_elf32_vec,
   1375 
   1376 	&v800_elf32_vec,
   1377 	&v850_elf32_vec,
   1378 
   1379 	&vax_aout_1knbsd_vec,
   1380 	&vax_aout_bsd_vec,
   1381 	&vax_aout_nbsd_vec,
   1382 	&vax_elf32_vec,
   1383 
   1384 	&w65_coff_vec,
   1385 
   1386 	&we32k_coff_vec,
   1387 
   1388 #ifdef BFD64
   1389 	&x86_64_coff_vec,
   1390 	&x86_64_elf32_vec,
   1391 	&x86_64_elf32_nacl_vec,
   1392 	&x86_64_elf64_vec,
   1393 	&x86_64_elf64_fbsd_vec,
   1394 	&x86_64_elf64_nacl_vec,
   1395 	&x86_64_elf64_sol2_vec,
   1396 	&x86_64_mach_o_vec,
   1397 	&x86_64_pe_vec,
   1398 	&x86_64_pe_be_vec,
   1399 	&x86_64_pei_vec,
   1400 #endif
   1401 
   1402 	&xc16x_elf32_vec,
   1403 
   1404 	&xgate_elf32_vec,
   1405 
   1406 	&xstormy16_elf32_vec,
   1407 
   1408 	&xtensa_elf32_be_vec,
   1409 	&xtensa_elf32_le_vec,
   1410 
   1411 	&z80_coff_vec,
   1412 
   1413 	&z8k_coff_vec,
   1414 #endif /* not SELECT_VECS */
   1415 
   1416 /* Always support S-records, for convenience.  */
   1417 	&srec_vec,
   1418 	&symbolsrec_vec,
   1419 /* And verilog.  */
   1420 	&verilog_vec,
   1421 /* And tekhex */
   1422 	&tekhex_vec,
   1423 /* Likewise for binary output.  */
   1424 	&binary_vec,
   1425 /* Likewise for ihex.  */
   1426 	&ihex_vec,
   1427 
   1428 /* Add any required traditional-core-file-handler.  */
   1429 
   1430 #ifdef AIX386_CORE
   1431 	&core_aix386_vec,
   1432 #endif
   1433 #if 0
   1434 	/* We don't include cisco_core_*_vec.  Although it has a magic number,
   1435 	   the magic number isn't at the beginning of the file, and thus
   1436 	   might spuriously match other kinds of files.  */
   1437 	&core_cisco_be_vec,
   1438 	&core_cisco_le_vec,
   1439 #endif
   1440 #ifdef HPPABSD_CORE
   1441 	&core_hppabsd_vec,
   1442 #endif
   1443 #ifdef HPUX_CORE
   1444 	&core_hpux_vec,
   1445 #endif
   1446 #ifdef IRIX_CORE
   1447 	&core_irix_vec,
   1448 #endif
   1449 #ifdef NETBSD_CORE
   1450 	&core_netbsd_vec,
   1451 #endif
   1452 #ifdef OSF_CORE
   1453 	&core_osf_vec,
   1454 #endif
   1455 #ifdef PTRACE_CORE
   1456 	&core_ptrace_vec,
   1457 #endif
   1458 #ifdef SCO5_CORE
   1459 	&core_sco5_vec,
   1460 #endif
   1461 #ifdef TRAD_CORE
   1462 	&core_trad_vec,
   1463 #endif
   1464 
   1465 	NULL /* end of list marker */
   1466 };
   1467 const bfd_target * const *bfd_target_vector = _bfd_target_vector;
   1468 
   1469 /* bfd_default_vector[0] contains either the address of the default vector,
   1470    if there is one, or zero if there isn't.  */
   1471 
   1472 const bfd_target *bfd_default_vector[] = {
   1473 #ifdef DEFAULT_VECTOR
   1474 	&DEFAULT_VECTOR,
   1475 #endif
   1476 	NULL
   1477 };
   1478 
   1479 /* bfd_associated_vector[] contains the associated target vectors used
   1480    to reduce the ambiguity in bfd_check_format_matches.  */
   1481 
   1482 static const bfd_target *_bfd_associated_vector[] = {
   1483 #ifdef ASSOCIATED_VECS
   1484 	ASSOCIATED_VECS,
   1485 #endif
   1486 	NULL
   1487 };
   1488 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector;
   1489 
   1490 /* When there is an ambiguous match, bfd_check_format_matches puts the
   1491    names of the matching targets in an array.  This variable is the maximum
   1492    number of entries that the array could possibly need.  */
   1493 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector);
   1494 
   1495 /* This array maps configuration triplets onto BFD vectors.  */
   1497 
   1498 struct targmatch
   1499 {
   1500   /* The configuration triplet.  */
   1501   const char *triplet;
   1502   /* The BFD vector.  If this is NULL, then the vector is found by
   1503      searching forward for the next structure with a non NULL vector
   1504      field.  */
   1505   const bfd_target *vector;
   1506 };
   1507 
   1508 /* targmatch.h is built by Makefile out of config.bfd.  */
   1509 static const struct targmatch bfd_target_match[] = {
   1510 #include "targmatch.h"
   1511   { NULL, NULL }
   1512 };
   1513 
   1514 /* Find a target vector, given a name or configuration triplet.  */
   1515 
   1516 static const bfd_target *
   1517 find_target (const char *name)
   1518 {
   1519   const bfd_target * const *target;
   1520   const struct targmatch *match;
   1521 
   1522   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1523     if (strcmp (name, (*target)->name) == 0)
   1524       return *target;
   1525 
   1526   /* If we couldn't match on the exact name, try matching on the
   1527      configuration triplet.  FIXME: We should run the triplet through
   1528      config.sub first, but that is hard.  */
   1529   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
   1530     {
   1531       if (fnmatch (match->triplet, name, 0) == 0)
   1532 	{
   1533 	  while (match->vector == NULL)
   1534 	    ++match;
   1535 	  return match->vector;
   1536 	}
   1537     }
   1538 
   1539   bfd_set_error (bfd_error_invalid_target);
   1540   return NULL;
   1541 }
   1542 
   1543 /*
   1544 FUNCTION
   1545 	bfd_set_default_target
   1546 
   1547 SYNOPSIS
   1548 	bfd_boolean bfd_set_default_target (const char *name);
   1549 
   1550 DESCRIPTION
   1551 	Set the default target vector to use when recognizing a BFD.
   1552 	This takes the name of the target, which may be a BFD target
   1553 	name or a configuration triplet.
   1554 */
   1555 
   1556 bfd_boolean
   1557 bfd_set_default_target (const char *name)
   1558 {
   1559   const bfd_target *target;
   1560 
   1561   if (bfd_default_vector[0] != NULL
   1562       && strcmp (name, bfd_default_vector[0]->name) == 0)
   1563     return TRUE;
   1564 
   1565   target = find_target (name);
   1566   if (target == NULL)
   1567     return FALSE;
   1568 
   1569   bfd_default_vector[0] = target;
   1570   return TRUE;
   1571 }
   1572 
   1573 /*
   1574 FUNCTION
   1575 	bfd_find_target
   1576 
   1577 SYNOPSIS
   1578 	const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
   1579 
   1580 DESCRIPTION
   1581 	Return a pointer to the transfer vector for the object target
   1582 	named @var{target_name}.  If @var{target_name} is <<NULL>>,
   1583 	choose the one in the environment variable <<GNUTARGET>>; if
   1584 	that is null or not defined, then choose the first entry in the
   1585 	target list.  Passing in the string "default" or setting the
   1586 	environment variable to "default" will cause the first entry in
   1587 	the target list to be returned, and "target_defaulted" will be
   1588 	set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
   1589 	<<bfd_check_format>> to loop over all the targets to find the
   1590 	one that matches the file being read.
   1591 */
   1592 
   1593 const bfd_target *
   1594 bfd_find_target (const char *target_name, bfd *abfd)
   1595 {
   1596   const char *targname;
   1597   const bfd_target *target;
   1598 
   1599   if (target_name != NULL)
   1600     targname = target_name;
   1601   else
   1602     targname = getenv ("GNUTARGET");
   1603 
   1604   /* This is safe; the vector cannot be null.  */
   1605   if (targname == NULL || strcmp (targname, "default") == 0)
   1606     {
   1607       if (bfd_default_vector[0] != NULL)
   1608 	target = bfd_default_vector[0];
   1609       else
   1610 	target = bfd_target_vector[0];
   1611       if (abfd)
   1612 	{
   1613 	  abfd->xvec = target;
   1614 	  abfd->target_defaulted = TRUE;
   1615 	}
   1616       return target;
   1617     }
   1618 
   1619   if (abfd)
   1620     abfd->target_defaulted = FALSE;
   1621 
   1622   target = find_target (targname);
   1623   if (target == NULL)
   1624     return NULL;
   1625 
   1626   if (abfd)
   1627     abfd->xvec = target;
   1628   return target;
   1629 }
   1630 
   1631 /* Helper function for bfd_get_target_info to determine the target's
   1632    architecture.  This method handles bfd internal target names as
   1633    tuples and triplets.  */
   1634 static bfd_boolean
   1635 _bfd_find_arch_match (const char *tname, const char **arch,
   1636 		      const char **def_target_arch)
   1637 {
   1638   if (!arch)
   1639     return FALSE;
   1640 
   1641   while (*arch != NULL)
   1642     {
   1643       const char *in_a = strstr (*arch, tname);
   1644       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
   1645 
   1646       if (in_a && (in_a == *arch || in_a[-1] == ':')
   1647           && end_ch == 0)
   1648         {
   1649           *def_target_arch = *arch;
   1650           return TRUE;
   1651         }
   1652       arch++;
   1653     }
   1654   return FALSE;
   1655 }
   1656 
   1657 /*
   1658 FUNCTION
   1659 	bfd_get_target_info
   1660 SYNOPSIS
   1661 	const bfd_target *bfd_get_target_info (const char *target_name,
   1662 					       bfd *abfd,
   1663 					       bfd_boolean *is_bigendian,
   1664 					       int *underscoring,
   1665 					       const char **def_target_arch);
   1666 DESCRIPTION
   1667         Return a pointer to the transfer vector for the object target
   1668         named @var{target_name}.  If @var{target_name} is <<NULL>>,
   1669         choose the one in the environment variable <<GNUTARGET>>; if
   1670         that is null or not defined, then choose the first entry in the
   1671         target list.  Passing in the string "default" or setting the
   1672         environment variable to "default" will cause the first entry in
   1673         the target list to be returned, and "target_defaulted" will be
   1674         set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
   1675         <<bfd_check_format>> to loop over all the targets to find the
   1676         one that matches the file being read.
   1677 	If @var{is_bigendian} is not <<NULL>>, then set this value to target's
   1678 	endian mode. True for big-endian, FALSE for little-endian or for
   1679 	invalid target.
   1680 	If @var{underscoring} is not <<NULL>>, then set this value to target's
   1681 	underscoring mode. Zero for none-underscoring, -1 for invalid target,
   1682 	else the value of target vector's symbol underscoring.
   1683 	If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
   1684 	string specified by the target_name.
   1685 */
   1686 const bfd_target *
   1687 bfd_get_target_info (const char *target_name, bfd *abfd,
   1688 		     bfd_boolean *is_bigendian,
   1689 		     int *underscoring, const char **def_target_arch)
   1690 {
   1691   const bfd_target *target_vec;
   1692 
   1693   if (is_bigendian)
   1694     *is_bigendian = FALSE;
   1695   if (underscoring)
   1696     *underscoring = -1;
   1697   if (def_target_arch)
   1698     *def_target_arch = NULL;
   1699   target_vec = bfd_find_target (target_name, abfd);
   1700   if (! target_vec)
   1701     return NULL;
   1702   if (is_bigendian)
   1703     *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE
   1704 							       : FALSE);
   1705   if (underscoring)
   1706     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
   1707 
   1708   if (def_target_arch)
   1709     {
   1710       const char *tname = target_vec->name;
   1711       const char **arches = bfd_arch_list ();
   1712 
   1713       if (arches && tname)
   1714         {
   1715           char *hyp = strchr (tname, '-');
   1716 
   1717           if (hyp != NULL)
   1718             {
   1719               tname = ++hyp;
   1720 
   1721 	      /* Make sure we detect architecture names
   1722 		 for triplets like "pe-arm-wince-little".  */
   1723 	      if (!_bfd_find_arch_match (tname, arches, def_target_arch))
   1724 		{
   1725 		  char new_tname[50];
   1726 
   1727 		  strcpy (new_tname, hyp);
   1728 		  while ((hyp = strrchr (new_tname, '-')) != NULL)
   1729 		    {
   1730 		      *hyp = 0;
   1731 		      if (_bfd_find_arch_match (new_tname, arches,
   1732 						def_target_arch))
   1733 			break;
   1734 		    }
   1735 		}
   1736 	    }
   1737 	  else
   1738 	    _bfd_find_arch_match (tname, arches, def_target_arch);
   1739 	}
   1740 
   1741       if (arches)
   1742         free (arches);
   1743     }
   1744   return target_vec;
   1745 }
   1746 
   1747 /*
   1748 FUNCTION
   1749 	bfd_target_list
   1750 
   1751 SYNOPSIS
   1752 	const char ** bfd_target_list (void);
   1753 
   1754 DESCRIPTION
   1755 	Return a freshly malloced NULL-terminated
   1756 	vector of the names of all the valid BFD targets. Do not
   1757 	modify the names.
   1758 
   1759 */
   1760 
   1761 const char **
   1762 bfd_target_list (void)
   1763 {
   1764   int vec_length = 0;
   1765   bfd_size_type amt;
   1766   const bfd_target * const *target;
   1767   const  char **name_list, **name_ptr;
   1768 
   1769   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1770     vec_length++;
   1771 
   1772   amt = (vec_length + 1) * sizeof (char **);
   1773   name_ptr = name_list = (const  char **) bfd_malloc (amt);
   1774 
   1775   if (name_list == NULL)
   1776     return NULL;
   1777 
   1778   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1779     if (target == &bfd_target_vector[0]
   1780 	|| *target != bfd_target_vector[0])
   1781       *name_ptr++ = (*target)->name;
   1782 
   1783   *name_ptr = NULL;
   1784   return name_list;
   1785 }
   1786 
   1787 /*
   1788 FUNCTION
   1789 	bfd_seach_for_target
   1790 
   1791 SYNOPSIS
   1792 	const bfd_target *bfd_search_for_target
   1793 	  (int (*search_func) (const bfd_target *, void *),
   1794 	   void *);
   1795 
   1796 DESCRIPTION
   1797 	Return a pointer to the first transfer vector in the list of
   1798 	transfer vectors maintained by BFD that produces a non-zero
   1799 	result when passed to the function @var{search_func}.  The
   1800 	parameter @var{data} is passed, unexamined, to the search
   1801 	function.
   1802 */
   1803 
   1804 const bfd_target *
   1805 bfd_search_for_target (int (*search_func) (const bfd_target *, void *),
   1806 		       void *data)
   1807 {
   1808   const bfd_target * const *target;
   1809 
   1810   for (target = bfd_target_vector; *target != NULL; target ++)
   1811     if (search_func (*target, data))
   1812       return *target;
   1813 
   1814   return NULL;
   1815 }
   1816