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targets.c revision 1.1.1.11
      1 /* Generic target-file-type support for the BFD library.
      2    Copyright (C) 1990-2025 Free Software Foundation, Inc.
      3    Written by Cygnus Support.
      4 
      5    This file is part of BFD, the Binary File Descriptor library.
      6 
      7    This program is free software; you can redistribute it and/or modify
      8    it under the terms of the GNU General Public License as published by
      9    the Free Software Foundation; either version 3 of the License, or
     10    (at your option) any later version.
     11 
     12    This program is distributed in the hope that it will be useful,
     13    but WITHOUT ANY WARRANTY; without even the implied warranty of
     14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15    GNU General Public License for more details.
     16 
     17    You should have received a copy of the GNU General Public License
     18    along with this program; if not, write to the Free Software
     19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     20    MA 02110-1301, USA.  */
     21 
     22 #include "sysdep.h"
     23 #include "libiberty.h"
     24 #include "bfd.h"
     25 #include "libbfd.h"
     26 #include "fnmatch.h"
     27 
     28 /*
     29    It's okay to see some:
     30 #if 0
     31    directives in this source file, as targets.c uses them to exclude
     32    certain BFD vectors.  This comment is specially formatted to catch
     33    users who grep for ^#if 0, so please keep it this way!
     34 */
     35 
     36 /*
     37 SECTION
     38 	Targets
     39 
     40 DESCRIPTION
     41 	Each port of BFD to a different machine requires the creation
     42 	of a target back end. All the back end provides to the root
     43 	part of BFD is a structure containing pointers to functions
     44 	which perform certain low level operations on files. BFD
     45 	translates the applications's requests through a pointer into
     46 	calls to the back end routines.
     47 
     48 	When a file is opened with <<bfd_openr>>, its format and
     49 	target are unknown. BFD uses various mechanisms to determine
     50 	how to interpret the file. The operations performed are:
     51 
     52 	o Create a BFD by calling the internal routine
     53 	<<_bfd_new_bfd>>, then call <<bfd_find_target>> with the
     54 	target string supplied to <<bfd_openr>> and the new BFD pointer.
     55 
     56 	o If a null target string was provided to <<bfd_find_target>>,
     57 	look up the environment variable <<GNUTARGET>> and use
     58 	that as the target string.
     59 
     60 	o If the target string is still <<NULL>>, or the target string is
     61 	<<default>>, then use the first item in the target vector
     62 	as the target type, and set <<target_defaulted>> in the BFD to
     63 	cause <<bfd_check_format>> to loop through all the targets.
     64 	@xref{bfd_target}.  @xref{Formats}.
     65 
     66 	o Otherwise, inspect the elements in the target vector
     67 	one by one, until a match on target name is found. When found,
     68 	use it.
     69 
     70 	o Otherwise return the error <<bfd_error_invalid_target>> to
     71 	<<bfd_openr>>.
     72 
     73 	o <<bfd_openr>> attempts to open the file using
     74 	<<bfd_open_file>>, and returns the BFD.
     75 
     76 	Once the BFD has been opened and the target selected, the file
     77 	format may be determined. This is done by calling
     78 	<<bfd_check_format>> on the BFD with a suggested format.
     79 	If <<target_defaulted>> has been set, each possible target
     80 	type is tried to see if it recognizes the specified format.
     81 	<<bfd_check_format>> returns <<TRUE>> when the caller guesses right.
     82 @menu
     83 @* bfd_target::
     84 @end menu
     85 */
     86 
     87 /*
     88 
     89 INODE
     90 	bfd_target,  , Targets, Targets
     91 DOCDD
     92 SUBSECTION
     93 	bfd_target
     94 
     95 DESCRIPTION
     96 	This structure contains everything that BFD knows about a
     97 	target. It includes things like its byte order, name, and which
     98 	routines to call to do various operations.
     99 
    100 	Every BFD points to a target structure with its <<xvec>>
    101 	member.
    102 
    103 	The macros below are used to dispatch to functions through the
    104 	<<bfd_target>> vector. They are used in a number of macros further
    105 	down in @file{bfd.h}, and are also used when calling various
    106 	routines by hand inside the BFD implementation.  The @var{arglist}
    107 	argument must be parenthesized; it contains all the arguments
    108 	to the called function.
    109 
    110 	They make the documentation (more) unpleasant to read, so if
    111 	someone wants to fix this and not break the above, please do.
    112 
    113 .#define BFD_SEND(bfd, message, arglist) \
    114 .  ((*((bfd)->xvec->message)) arglist)
    115 .
    116 .#ifdef DEBUG_BFD_SEND
    117 .#undef BFD_SEND
    118 .#define BFD_SEND(bfd, message, arglist) \
    119 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
    120 .    ((*((bfd)->xvec->message)) arglist) : \
    121 .    (bfd_assert (__FILE__,__LINE__), NULL))
    122 .#endif
    123 
    124 	For operations which index on the BFD format:
    125 
    126 .#define BFD_SEND_FMT(bfd, message, arglist) \
    127 .  (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist)
    128 .
    129 .#ifdef DEBUG_BFD_SEND
    130 .#undef BFD_SEND_FMT
    131 .#define BFD_SEND_FMT(bfd, message, arglist) \
    132 .  (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \
    133 .   (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \
    134 .   (bfd_assert (__FILE__,__LINE__), NULL))
    135 .#endif
    136 .
    137 .{* Defined to TRUE if unused section symbol should be kept.  *}
    138 .#ifndef TARGET_KEEP_UNUSED_SECTION_SYMBOLS
    139 .#define TARGET_KEEP_UNUSED_SECTION_SYMBOLS true
    140 .#endif
    141 .
    142 	This is the structure which defines the type of BFD this is.  The
    143 	<<xvec>> member of the struct <<bfd>> itself points here.  Each
    144 	module that implements access to a different target under BFD,
    145 	defines one of these.
    146 
    147 	FIXME, these names should be rationalised with the names of
    148 	the entry points which call them. Too bad we can't have one
    149 	macro to define them both!
    150 
    151 EXTERNAL
    152 .enum bfd_flavour
    153 .{
    154 .  {* N.B. Update bfd_flavour_name if you change this.  *}
    155 .  bfd_target_unknown_flavour,
    156 .  bfd_target_aout_flavour,
    157 .  bfd_target_coff_flavour,
    158 .  bfd_target_ecoff_flavour,
    159 .  bfd_target_xcoff_flavour,
    160 .  bfd_target_elf_flavour,
    161 .  bfd_target_tekhex_flavour,
    162 .  bfd_target_srec_flavour,
    163 .  bfd_target_verilog_flavour,
    164 .  bfd_target_ihex_flavour,
    165 .  bfd_target_som_flavour,
    166 .  bfd_target_msdos_flavour,
    167 .  bfd_target_evax_flavour,
    168 .  bfd_target_mmo_flavour,
    169 .  bfd_target_mach_o_flavour,
    170 .  bfd_target_pef_flavour,
    171 .  bfd_target_pef_xlib_flavour,
    172 .  bfd_target_sym_flavour
    173 .};
    174 .
    175 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
    176 .
    177 .{* Forward declarations.  *}
    178 .struct flag_info;
    179 .typedef void (*bfd_cleanup) (bfd *);
    180 .
    181 
    182 CODE_FRAGMENT
    183 .typedef struct bfd_target
    184 .{
    185 .  {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc.  *}
    186 .  const char *name;
    187 .
    188 . {* The "flavour" of a back end is a general indication about
    189 .    the contents of a file.  *}
    190 .  enum bfd_flavour flavour;
    191 .
    192 .  {* The order of bytes within the data area of a file.  *}
    193 .  enum bfd_endian byteorder;
    194 .
    195 . {* The order of bytes within the header parts of a file.  *}
    196 .  enum bfd_endian header_byteorder;
    197 .
    198 .  {* A mask of all the flags which an executable may have set -
    199 .     from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>.  *}
    200 .  flagword object_flags;
    201 .
    202 . {* A mask of all the flags which a section may have set - from
    203 .    the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>.  *}
    204 .  flagword section_flags;
    205 .
    206 . {* The character normally found at the front of a symbol.
    207 .    (if any), perhaps `_'.  *}
    208 .  char symbol_leading_char;
    209 .
    210 . {* The pad character for file names within an archive header.  *}
    211 .  char ar_pad_char;
    212 .
    213 .  {* The maximum number of characters in an archive header.  *}
    214 .  unsigned char ar_max_namelen;
    215 .
    216 .  {* How well this target matches, used to select between various
    217 .     possible targets when more than one target matches.  *}
    218 .  unsigned char match_priority;
    219 .
    220 . {* TRUE if unused section symbols should be kept.  *}
    221 .  bool keep_unused_section_symbols;
    222 .
    223 .  {* Entries for byte swapping for data. These are different from the
    224 .     other entry points, since they don't take a BFD as the first argument.
    225 .     Certain other handlers could do the same.  *}
    226 .  uint64_t	  (*bfd_getx64) (const void *);
    227 .  int64_t	  (*bfd_getx_signed_64) (const void *);
    228 .  void		  (*bfd_putx64) (uint64_t, void *);
    229 .  bfd_vma	  (*bfd_getx32) (const void *);
    230 .  bfd_signed_vma (*bfd_getx_signed_32) (const void *);
    231 .  void		  (*bfd_putx32) (bfd_vma, void *);
    232 .  bfd_vma	  (*bfd_getx16) (const void *);
    233 .  bfd_signed_vma (*bfd_getx_signed_16) (const void *);
    234 .  void		  (*bfd_putx16) (bfd_vma, void *);
    235 .
    236 .  {* Byte swapping for the headers.  *}
    237 .  uint64_t	  (*bfd_h_getx64) (const void *);
    238 .  int64_t	  (*bfd_h_getx_signed_64) (const void *);
    239 .  void		  (*bfd_h_putx64) (uint64_t, void *);
    240 .  bfd_vma	  (*bfd_h_getx32) (const void *);
    241 .  bfd_signed_vma (*bfd_h_getx_signed_32) (const void *);
    242 .  void		  (*bfd_h_putx32) (bfd_vma, void *);
    243 .  bfd_vma	  (*bfd_h_getx16) (const void *);
    244 .  bfd_signed_vma (*bfd_h_getx_signed_16) (const void *);
    245 .  void		  (*bfd_h_putx16) (bfd_vma, void *);
    246 .
    247 .  {* Format dependent routines: these are vectors of entry points
    248 .     within the target vector structure, one for each format to check.  *}
    249 .
    250 .  {* Check the format of a file being read.  Return a <<bfd_cleanup>> on
    251 .     success or zero on failure.  *}
    252 .  bfd_cleanup (*_bfd_check_format[bfd_type_end]) (bfd *);
    253 .
    254 .  {* Set the format of a file being written.  *}
    255 .  bool (*_bfd_set_format[bfd_type_end]) (bfd *);
    256 .
    257 .  {* Write cached information into a file being written, at <<bfd_close>>.  *}
    258 .  bool (*_bfd_write_contents[bfd_type_end]) (bfd *);
    259 .
    260 
    261 The general target vector.  These vectors are initialized using the
    262 BFD_JUMP_TABLE macros.
    263 
    264 .  {* Generic entry points.  *}
    265 .#define BFD_JUMP_TABLE_GENERIC(NAME) \
    266 .  NAME##_close_and_cleanup, \
    267 .  NAME##_bfd_free_cached_info, \
    268 .  NAME##_new_section_hook, \
    269 .  NAME##_get_section_contents
    270 .
    271 .  {* Called when the BFD is being closed to do any necessary cleanup.  *}
    272 .  bool (*_close_and_cleanup) (bfd *);
    273 .  {* Ask the BFD to free all cached information.  *}
    274 .  bool (*_bfd_free_cached_info) (bfd *);
    275 .  {* Called when a new section is created.  *}
    276 .  bool (*_new_section_hook) (bfd *, sec_ptr);
    277 .  {* Read the contents of a section.  *}
    278 .  bool (*_bfd_get_section_contents) (bfd *, sec_ptr, void *, file_ptr,
    279 .				      bfd_size_type);
    280 .
    281 .  {* Entry points to copy private data.  *}
    282 .#define BFD_JUMP_TABLE_COPY(NAME) \
    283 .  NAME##_bfd_copy_private_bfd_data, \
    284 .  NAME##_bfd_merge_private_bfd_data, \
    285 .  NAME##_bfd_copy_private_section_data, \
    286 .  NAME##_bfd_copy_private_symbol_data, \
    287 .  NAME##_bfd_copy_private_header_data, \
    288 .  NAME##_bfd_set_private_flags, \
    289 .  NAME##_bfd_print_private_bfd_data
    290 .
    291 .  {* Called to copy BFD general private data from one object file
    292 .     to another.  *}
    293 .  bool (*_bfd_copy_private_bfd_data) (bfd *, bfd *);
    294 .  {* Called to merge BFD general private data from one object file
    295 .     to a common output file when linking.  *}
    296 .  bool (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *);
    297 .  {* Called to copy BFD private section data from one object file
    298 .     to another.  *}
    299 .  bool (*_bfd_copy_private_section_data) (bfd *, sec_ptr, bfd *, sec_ptr,
    300 .					   struct bfd_link_info *);
    301 .  {* Called to copy BFD private symbol data from one symbol
    302 .     to another.  *}
    303 .  bool (*_bfd_copy_private_symbol_data) (bfd *, asymbol *,
    304 .					  bfd *, asymbol *);
    305 .  {* Called to copy BFD private header data from one object file
    306 .     to another.  *}
    307 .  bool (*_bfd_copy_private_header_data) (bfd *, bfd *);
    308 .  {* Called to set private backend flags.  *}
    309 .  bool (*_bfd_set_private_flags) (bfd *, flagword);
    310 .
    311 .  {* Called to print private BFD data.  *}
    312 .  bool (*_bfd_print_private_bfd_data) (bfd *, void *);
    313 .
    314 .  {* Core file entry points.  *}
    315 .#define BFD_JUMP_TABLE_CORE(NAME) \
    316 .  NAME##_core_file_failing_command, \
    317 .  NAME##_core_file_failing_signal, \
    318 .  NAME##_core_file_matches_executable_p, \
    319 .  NAME##_core_file_pid
    320 .
    321 .  char *(*_core_file_failing_command) (bfd *);
    322 .  int   (*_core_file_failing_signal) (bfd *);
    323 .  bool  (*_core_file_matches_executable_p) (bfd *, bfd *);
    324 .  int   (*_core_file_pid) (bfd *);
    325 .
    326 .  {* Archive entry points.  *}
    327 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \
    328 .  NAME##_slurp_armap, \
    329 .  NAME##_slurp_extended_name_table, \
    330 .  NAME##_construct_extended_name_table, \
    331 .  NAME##_truncate_arname, \
    332 .  NAME##_write_armap, \
    333 .  NAME##_read_ar_hdr, \
    334 .  NAME##_write_ar_hdr, \
    335 .  NAME##_openr_next_archived_file, \
    336 .  NAME##_get_elt_at_index, \
    337 .  NAME##_generic_stat_arch_elt, \
    338 .  NAME##_update_armap_timestamp
    339 .
    340 .  bool (*_bfd_slurp_armap) (bfd *);
    341 .  bool (*_bfd_slurp_extended_name_table) (bfd *);
    342 .  bool (*_bfd_construct_extended_name_table) (bfd *, char **,
    343 .					       bfd_size_type *,
    344 .					       const char **);
    345 .  void (*_bfd_truncate_arname) (bfd *, const char *, char *);
    346 .  bool (*write_armap) (bfd *, unsigned, struct orl *, unsigned, int);
    347 .  void *(*_bfd_read_ar_hdr_fn) (bfd *);
    348 .  bool (*_bfd_write_ar_hdr_fn) (bfd *, bfd *);
    349 .  bfd *(*openr_next_archived_file) (bfd *, bfd *);
    350 .#define bfd_get_elt_at_index(b,i) \
    351 .	BFD_SEND (b, _bfd_get_elt_at_index, (b,i))
    352 .  bfd *(*_bfd_get_elt_at_index) (bfd *, symindex);
    353 .  int  (*_bfd_stat_arch_elt) (bfd *, struct stat *);
    354 .  bool (*_bfd_update_armap_timestamp) (bfd *);
    355 .
    356 .  {* Entry points used for symbols.  *}
    357 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \
    358 .  NAME##_get_symtab_upper_bound, \
    359 .  NAME##_canonicalize_symtab, \
    360 .  NAME##_make_empty_symbol, \
    361 .  NAME##_print_symbol, \
    362 .  NAME##_get_symbol_info, \
    363 .  NAME##_get_symbol_version_string, \
    364 .  NAME##_bfd_is_local_label_name, \
    365 .  NAME##_bfd_is_target_special_symbol, \
    366 .  NAME##_get_lineno, \
    367 .  NAME##_find_nearest_line, \
    368 .  NAME##_find_nearest_line_with_alt, \
    369 .  NAME##_find_line, \
    370 .  NAME##_find_inliner_info, \
    371 .  NAME##_bfd_make_debug_symbol, \
    372 .  NAME##_read_minisymbols, \
    373 .  NAME##_minisymbol_to_symbol
    374 .
    375 .  long	(*_bfd_get_symtab_upper_bound) (bfd *);
    376 .  long	(*_bfd_canonicalize_symtab) (bfd *, struct bfd_symbol **);
    377 .  struct bfd_symbol *
    378 .	(*_bfd_make_empty_symbol) (bfd *);
    379 .  void	(*_bfd_print_symbol) (bfd *, void *, struct bfd_symbol *,
    380 .			      bfd_print_symbol_type);
    381 .#define bfd_print_symbol(b,p,s,e) \
    382 .	BFD_SEND (b, _bfd_print_symbol, (b,p,s,e))
    383 .  void	 (*_bfd_get_symbol_info) (bfd *, struct bfd_symbol *, symbol_info *);
    384 .#define bfd_get_symbol_info(b,p,e) \
    385 .	BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
    386 .  const char *
    387 .	(*_bfd_get_symbol_version_string) (bfd *, struct bfd_symbol *,
    388 .					   bool, bool *);
    389 .#define bfd_get_symbol_version_string(b,s,p,h) \
    390 .	BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,p,h))
    391 .  bool (*_bfd_is_local_label_name) (bfd *, const char *);
    392 .  bool (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
    393 .  alent *
    394 .	(*_get_lineno) (bfd *, struct bfd_symbol *);
    395 .  bool (*_bfd_find_nearest_line) (bfd *, struct bfd_symbol **,
    396 .				   struct bfd_section *, bfd_vma,
    397 .				   const char **, const char **,
    398 .				   unsigned int *, unsigned int *);
    399 .  bool (*_bfd_find_nearest_line_with_alt) (bfd *, const char *,
    400 .					    struct bfd_symbol **,
    401 .					    struct bfd_section *, bfd_vma,
    402 .					    const char **, const char **,
    403 .					    unsigned int *, unsigned int *);
    404 .  bool (*_bfd_find_line) (bfd *, struct bfd_symbol **,
    405 .			   struct bfd_symbol *, const char **,
    406 .			   unsigned int *);
    407 .  bool (*_bfd_find_inliner_info)
    408 .    (bfd *, const char **, const char **, unsigned int *);
    409 . {* Back-door to allow format-aware applications to create debug symbols
    410 .    while using BFD for everything else.  Currently used by the assembler
    411 .    when creating COFF files.  *}
    412 .  asymbol *
    413 .	(*_bfd_make_debug_symbol) (bfd *);
    414 .#define bfd_read_minisymbols(b, d, m, s) \
    415 .	BFD_SEND (b, _read_minisymbols, (b, d, m, s))
    416 .  long	(*_read_minisymbols) (bfd *, bool, void **, unsigned int *);
    417 .#define bfd_minisymbol_to_symbol(b, d, m, f) \
    418 .	BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f))
    419 .  asymbol *
    420 .       (*_minisymbol_to_symbol) (bfd *, bool, const void *, asymbol *);
    421 .
    422 .  {* Routines for relocs.  *}
    423 .#define BFD_JUMP_TABLE_RELOCS(NAME) \
    424 .  NAME##_get_reloc_upper_bound, \
    425 .  NAME##_canonicalize_reloc, \
    426 .  NAME##_set_reloc, \
    427 .  NAME##_bfd_reloc_type_lookup, \
    428 .  NAME##_bfd_reloc_name_lookup
    429 .
    430 .  long	(*_get_reloc_upper_bound) (bfd *, sec_ptr);
    431 .  long	(*_bfd_canonicalize_reloc) (bfd *, sec_ptr, arelent **,
    432 .				    struct bfd_symbol **);
    433 .  void	(*_bfd_set_reloc) (bfd *, sec_ptr, arelent **, unsigned int);
    434 .  {* See documentation on reloc types.  *}
    435 .  reloc_howto_type *
    436 .	(*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type);
    437 .  reloc_howto_type *
    438 .	(*reloc_name_lookup) (bfd *, const char *);
    439 .
    440 .  {* Routines used when writing an object file.  *}
    441 .#define BFD_JUMP_TABLE_WRITE(NAME) \
    442 .  NAME##_set_arch_mach, \
    443 .  NAME##_set_section_contents
    444 .
    445 .  bool (*_bfd_set_arch_mach) (bfd *, enum bfd_architecture,
    446 .				      unsigned long);
    447 .  bool (*_bfd_set_section_contents) (bfd *, sec_ptr, const void *,
    448 .				      file_ptr, bfd_size_type);
    449 .
    450 .  {* Routines used by the linker.  *}
    451 .#define BFD_JUMP_TABLE_LINK(NAME) \
    452 .  NAME##_sizeof_headers, \
    453 .  NAME##_bfd_get_relocated_section_contents, \
    454 .  NAME##_bfd_relax_section, \
    455 .  NAME##_bfd_link_hash_table_create, \
    456 .  NAME##_bfd_link_add_symbols, \
    457 .  NAME##_bfd_link_just_syms, \
    458 .  NAME##_bfd_copy_link_hash_symbol_type, \
    459 .  NAME##_bfd_final_link, \
    460 .  NAME##_bfd_link_split_section, \
    461 .  NAME##_bfd_link_check_relocs, \
    462 .  NAME##_bfd_gc_sections, \
    463 .  NAME##_bfd_lookup_section_flags, \
    464 .  NAME##_bfd_merge_sections, \
    465 .  NAME##_bfd_is_group_section, \
    466 .  NAME##_bfd_group_name, \
    467 .  NAME##_bfd_discard_group, \
    468 .  NAME##_section_already_linked, \
    469 .  NAME##_bfd_define_common_symbol, \
    470 .  NAME##_bfd_link_hide_symbol, \
    471 .  NAME##_bfd_define_start_stop
    472 .
    473 .  int	(*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *);
    474 .  bfd_byte *
    475 .	(*_bfd_get_relocated_section_contents) (bfd *,
    476 .					        struct bfd_link_info *,
    477 .					        struct bfd_link_order *,
    478 .					        bfd_byte *, bool,
    479 .					        struct bfd_symbol **);
    480 .
    481 .  bool (*_bfd_relax_section) (bfd *, struct bfd_section *,
    482 .			       struct bfd_link_info *, bool *);
    483 .
    484 .  {* Create a hash table for the linker.  Different backends store
    485 .     different information in this table.  *}
    486 .  struct bfd_link_hash_table *
    487 .	(*_bfd_link_hash_table_create) (bfd *);
    488 .
    489 .  {* Add symbols from this object file into the hash table.  *}
    490 .  bool (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *);
    491 .
    492 .  {* Indicate that we are only retrieving symbol values from this section.  *}
    493 .  void (*_bfd_link_just_syms) (asection *, struct bfd_link_info *);
    494 .
    495 .  {* Copy the symbol type and other attributes for a linker script
    496 .     assignment of one symbol to another.  *}
    497 .#define bfd_copy_link_hash_symbol_type(b, t, f) \
    498 .	BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f))
    499 .  void (*_bfd_copy_link_hash_symbol_type) (bfd *,
    500 .					    struct bfd_link_hash_entry *,
    501 .					    struct bfd_link_hash_entry *);
    502 .
    503 .  {* Do a link based on the link_order structures attached to each
    504 .     section of the BFD.  *}
    505 .  bool (*_bfd_final_link) (bfd *, struct bfd_link_info *);
    506 .
    507 .  {* Should this section be split up into smaller pieces during linking.  *}
    508 .  bool (*_bfd_link_split_section) (bfd *, struct bfd_section *);
    509 .
    510 .  {* Check the relocations in the bfd for validity.  *}
    511 .  bool (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *);
    512 .
    513 .  {* Remove sections that are not referenced from the output.  *}
    514 .  bool (*_bfd_gc_sections) (bfd *, struct bfd_link_info *);
    515 .
    516 .  {* Sets the bitmask of allowed and disallowed section flags.  *}
    517 .  bool (*_bfd_lookup_section_flags) (struct bfd_link_info *,
    518 .				      struct flag_info *, asection *);
    519 .
    520 .  {* Attempt to merge SEC_MERGE sections.  *}
    521 .  bool (*_bfd_merge_sections) (bfd *, struct bfd_link_info *);
    522 .
    523 .  {* Is this section a member of a group?  *}
    524 .  bool (*_bfd_is_group_section) (bfd *, const struct bfd_section *);
    525 .
    526 .  {* The group name, if section is a member of a group.  *}
    527 .  const char *(*_bfd_group_name) (bfd *, const struct bfd_section *);
    528 .
    529 .  {* Discard members of a group.  *}
    530 .  bool (*_bfd_discard_group) (bfd *, struct bfd_section *);
    531 .
    532 .  {* Check if SEC has been already linked during a reloceatable or
    533 .     final link.  *}
    534 .  bool (*_section_already_linked) (bfd *, asection *,
    535 .				    struct bfd_link_info *);
    536 .
    537 .  {* Define a common symbol.  *}
    538 .  bool (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *,
    539 .				      struct bfd_link_hash_entry *);
    540 .
    541 .  {* Hide a symbol.  *}
    542 .  void (*_bfd_link_hide_symbol) (bfd *, struct bfd_link_info *,
    543 .				  struct bfd_link_hash_entry *);
    544 .
    545 .  {* Define a __start, __stop, .startof. or .sizeof. symbol.  *}
    546 .  struct bfd_link_hash_entry *
    547 .	(*_bfd_define_start_stop) (struct bfd_link_info *, const char *,
    548 .				   asection *);
    549 .
    550 .  {* Routines to handle dynamic symbols and relocs.  *}
    551 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \
    552 .  NAME##_get_dynamic_symtab_upper_bound, \
    553 .  NAME##_canonicalize_dynamic_symtab, \
    554 .  NAME##_get_synthetic_symtab, \
    555 .  NAME##_get_dynamic_reloc_upper_bound, \
    556 .  NAME##_canonicalize_dynamic_reloc
    557 .
    558 .  {* Get the amount of memory required to hold the dynamic symbols.  *}
    559 .  long (*_bfd_get_dynamic_symtab_upper_bound) (bfd *);
    560 .  {* Read in the dynamic symbols.  *}
    561 .  long (*_bfd_canonicalize_dynamic_symtab) (bfd *, struct bfd_symbol **);
    562 .  {* Create synthetized symbols.  *}
    563 .  long (*_bfd_get_synthetic_symtab) (bfd *, long, struct bfd_symbol **,
    564 .				      long, struct bfd_symbol **,
    565 .				      struct bfd_symbol **);
    566 .  {* Get the amount of memory required to hold the dynamic relocs.  *}
    567 .  long (*_bfd_get_dynamic_reloc_upper_bound) (bfd *);
    568 .  {* Read in the dynamic relocs.  *}
    569 .  long (*_bfd_canonicalize_dynamic_reloc) (bfd *, arelent **,
    570 .					    struct bfd_symbol **);
    571 .
    572 
    573 A pointer to an alternative bfd_target in case the current one is not
    574 satisfactory.  This can happen when the target cpu supports both big
    575 and little endian code, and target chosen by the linker has the wrong
    576 endianness.  The function open_output() in ld/ldlang.c uses this field
    577 to find an alternative output format that is suitable.
    578 
    579 .  {* Opposite endian version of this target.  *}
    580 .  const struct bfd_target *alternative_target;
    581 .
    582 
    583 .  {* Data for use by back-end routines, which isn't
    584 .     generic enough to belong in this structure.  *}
    585 .  const void *backend_data;
    586 .
    587 .} bfd_target;
    588 .
    589 .static inline const char *
    590 .bfd_get_target (const bfd *abfd)
    591 .{
    592 .  return abfd->xvec->name;
    593 .}
    594 .
    595 .static inline enum bfd_flavour
    596 .bfd_get_flavour (const bfd *abfd)
    597 .{
    598 .  return abfd->xvec->flavour;
    599 .}
    600 .
    601 .static inline flagword
    602 .bfd_applicable_file_flags (const bfd *abfd)
    603 .{
    604 .  return abfd->xvec->object_flags;
    605 .}
    606 .
    607 .static inline bool
    608 .bfd_family_coff (const bfd *abfd)
    609 .{
    610 .  return (bfd_get_flavour (abfd) == bfd_target_coff_flavour
    611 .          || bfd_get_flavour (abfd) == bfd_target_xcoff_flavour);
    612 .}
    613 .
    614 .static inline bool
    615 .bfd_big_endian (const bfd *abfd)
    616 .{
    617 .  return abfd->xvec->byteorder == BFD_ENDIAN_BIG;
    618 .}
    619 .static inline bool
    620 .bfd_little_endian (const bfd *abfd)
    621 .{
    622 .  return abfd->xvec->byteorder == BFD_ENDIAN_LITTLE;
    623 .}
    624 .
    625 .static inline bool
    626 .bfd_header_big_endian (const bfd *abfd)
    627 .{
    628 .  return abfd->xvec->header_byteorder == BFD_ENDIAN_BIG;
    629 .}
    630 .
    631 .static inline bool
    632 .bfd_header_little_endian (const bfd *abfd)
    633 .{
    634 .  return abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE;
    635 .}
    636 .
    637 .static inline flagword
    638 .bfd_applicable_section_flags (const bfd *abfd)
    639 .{
    640 .  return abfd->xvec->section_flags;
    641 .}
    642 .
    643 .static inline char
    644 .bfd_get_symbol_leading_char (const bfd *abfd)
    645 .{
    646 .  return abfd->xvec->symbol_leading_char;
    647 .}
    648 .
    649 .static inline enum bfd_flavour
    650 .bfd_asymbol_flavour (const asymbol *sy)
    651 .{
    652 .  if ((sy->flags & BSF_SYNTHETIC) != 0)
    653 .    return bfd_target_unknown_flavour;
    654 .  return sy->the_bfd->xvec->flavour;
    655 .}
    656 .
    657 .static inline bool
    658 .bfd_keep_unused_section_symbols (const bfd *abfd)
    659 .{
    660 .  return abfd->xvec->keep_unused_section_symbols;
    661 .}
    662 .
    663 .static inline bool
    664 .bfd_target_supports_archives (const bfd *abfd)
    665 .{
    666 .  return (abfd->xvec->_bfd_check_format[bfd_archive]
    667 .	   != abfd->xvec->_bfd_check_format[bfd_unknown]);
    668 .}
    669 .
    670 */
    671 
    672 /* All known xvecs (even those that don't compile on all systems).
    673    Alphabetized for easy reference.
    674    They are listed a second time below, since
    675    we can't intermix extern's and initializers.  */
    676 extern const bfd_target aarch64_elf32_be_vec;
    677 extern const bfd_target aarch64_elf32_le_vec;
    678 extern const bfd_target aarch64_elf64_be_vec;
    679 extern const bfd_target aarch64_elf64_be_cloudabi_vec;
    680 extern const bfd_target aarch64_elf64_le_vec;
    681 extern const bfd_target aarch64_elf64_le_cloudabi_vec;
    682 extern const bfd_target aarch64_mach_o_vec;
    683 extern const bfd_target aarch64_pei_le_vec;
    684 extern const bfd_target aarch64_pe_le_vec;
    685 extern const bfd_target alpha_ecoff_le_vec;
    686 extern const bfd_target alpha_elf64_vec;
    687 extern const bfd_target alpha_elf64_fbsd_vec;
    688 extern const bfd_target alpha_vms_vec;
    689 extern const bfd_target alpha_vms_lib_txt_vec;
    690 extern const bfd_target am33_elf32_linux_vec;
    691 extern const bfd_target amdgcn_elf64_le_vec;
    692 extern const bfd_target aout_vec;
    693 extern const bfd_target arc_elf32_be_vec;
    694 extern const bfd_target arc_elf32_le_vec;
    695 extern const bfd_target arm_elf32_be_vec;
    696 extern const bfd_target arm_elf32_le_vec;
    697 extern const bfd_target arm_elf32_fdpic_be_vec;
    698 extern const bfd_target arm_elf32_fdpic_le_vec;
    699 extern const bfd_target arm_elf32_nacl_be_vec;
    700 extern const bfd_target arm_elf32_nacl_le_vec;
    701 extern const bfd_target arm_elf32_vxworks_be_vec;
    702 extern const bfd_target arm_elf32_vxworks_le_vec;
    703 extern const bfd_target arm_mach_o_vec;
    704 extern const bfd_target arm_pe_be_vec;
    705 extern const bfd_target arm_pe_le_vec;
    706 extern const bfd_target arm_pe_wince_be_vec;
    707 extern const bfd_target arm_pe_wince_le_vec;
    708 extern const bfd_target arm_pei_be_vec;
    709 extern const bfd_target arm_pei_le_vec;
    710 extern const bfd_target arm_pei_wince_be_vec;
    711 extern const bfd_target arm_pei_wince_le_vec;
    712 extern const bfd_target avr_elf32_vec;
    713 extern const bfd_target bfin_elf32_vec;
    714 extern const bfd_target bfin_elf32_fdpic_vec;
    715 extern const bfd_target cr16_elf32_vec;
    716 extern const bfd_target cris_aout_vec;
    717 extern const bfd_target cris_elf32_vec;
    718 extern const bfd_target cris_elf32_us_vec;
    719 extern const bfd_target crx_elf32_vec;
    720 extern const bfd_target csky_elf32_be_vec;
    721 extern const bfd_target csky_elf32_le_vec;
    722 extern const bfd_target d10v_elf32_vec;
    723 extern const bfd_target d30v_elf32_vec;
    724 extern const bfd_target dlx_elf32_be_vec;
    725 extern const bfd_target elf32_be_vec;
    726 extern const bfd_target elf32_le_vec;
    727 extern const bfd_target elf64_be_vec;
    728 extern const bfd_target elf64_le_vec;
    729 extern const bfd_target bpf_elf64_le_vec;
    730 extern const bfd_target bpf_elf64_be_vec;
    731 extern const bfd_target epiphany_elf32_vec;
    732 extern const bfd_target fr30_elf32_vec;
    733 extern const bfd_target frv_elf32_vec;
    734 extern const bfd_target frv_elf32_fdpic_vec;
    735 extern const bfd_target h8300_elf32_vec;
    736 extern const bfd_target h8300_elf32_linux_vec;
    737 extern const bfd_target hppa_elf32_vec;
    738 extern const bfd_target hppa_elf32_linux_vec;
    739 extern const bfd_target hppa_elf32_nbsd_vec;
    740 extern const bfd_target hppa_elf64_vec;
    741 extern const bfd_target hppa_elf64_linux_vec;
    742 extern const bfd_target hppa_som_vec;
    743 extern const bfd_target i386_aout_vec;
    744 extern const bfd_target i386_aout_bsd_vec;
    745 extern const bfd_target i386_aout_lynx_vec;
    746 extern const bfd_target i386_coff_vec;
    747 extern const bfd_target i386_coff_go32_vec;
    748 extern const bfd_target i386_coff_go32stubbed_vec;
    749 extern const bfd_target i386_coff_lynx_vec;
    750 extern const bfd_target i386_elf32_vec;
    751 extern const bfd_target i386_elf32_fbsd_vec;
    752 extern const bfd_target i386_elf32_sol2_vec;
    753 extern const bfd_target i386_elf32_vxworks_vec;
    754 extern const bfd_target i386_mach_o_vec;
    755 extern const bfd_target i386_msdos_vec;
    756 extern const bfd_target i386_pe_vec;
    757 extern const bfd_target i386_pe_big_vec;
    758 extern const bfd_target i386_pei_vec;
    759 extern const bfd_target iamcu_elf32_vec;
    760 extern const bfd_target ia64_elf32_be_vec;
    761 extern const bfd_target ia64_elf32_hpux_be_vec;
    762 extern const bfd_target ia64_elf64_be_vec;
    763 extern const bfd_target ia64_elf64_le_vec;
    764 extern const bfd_target ia64_elf64_hpux_be_vec;
    765 extern const bfd_target ia64_elf64_vms_vec;
    766 extern const bfd_target ia64_pei_vec;
    767 extern const bfd_target ip2k_elf32_vec;
    768 extern const bfd_target iq2000_elf32_vec;
    769 extern const bfd_target kvx_elf32_vec;
    770 extern const bfd_target kvx_elf64_vec;
    771 extern const bfd_target lm32_elf32_vec;
    772 extern const bfd_target lm32_elf32_fdpic_vec;
    773 extern const bfd_target loongarch_elf64_vec;
    774 extern const bfd_target loongarch_elf32_vec;
    775 extern const bfd_target loongarch64_pei_vec;
    776 extern const bfd_target m32c_elf32_vec;
    777 extern const bfd_target m32r_elf32_vec;
    778 extern const bfd_target m32r_elf32_le_vec;
    779 extern const bfd_target m32r_elf32_linux_vec;
    780 extern const bfd_target m32r_elf32_linux_le_vec;
    781 extern const bfd_target m68hc11_elf32_vec;
    782 extern const bfd_target m68hc12_elf32_vec;
    783 extern const bfd_target m68k_elf32_vec;
    784 extern const bfd_target s12z_elf32_vec;
    785 extern const bfd_target mach_o_be_vec;
    786 extern const bfd_target mach_o_le_vec;
    787 extern const bfd_target mach_o_fat_vec;
    788 extern const bfd_target mcore_elf32_be_vec;
    789 extern const bfd_target mcore_elf32_le_vec;
    790 extern const bfd_target mcore_pe_be_vec;
    791 extern const bfd_target mcore_pe_le_vec;
    792 extern const bfd_target mcore_pei_be_vec;
    793 extern const bfd_target mcore_pei_le_vec;
    794 extern const bfd_target mep_elf32_vec;
    795 extern const bfd_target mep_elf32_le_vec;
    796 extern const bfd_target metag_elf32_vec;
    797 extern const bfd_target microblaze_elf32_vec;
    798 extern const bfd_target microblaze_elf32_le_vec;
    799 extern const bfd_target mips_ecoff_be_vec;
    800 extern const bfd_target mips_ecoff_le_vec;
    801 extern const bfd_target mips_ecoff_bele_vec;
    802 extern const bfd_target mips_elf32_be_vec;
    803 extern const bfd_target mips_elf32_le_vec;
    804 extern const bfd_target mips_elf32_n_be_vec;
    805 extern const bfd_target mips_elf32_n_le_vec;
    806 extern const bfd_target mips_elf32_ntrad_be_vec;
    807 extern const bfd_target mips_elf32_ntrad_le_vec;
    808 extern const bfd_target mips_elf32_ntradfbsd_be_vec;
    809 extern const bfd_target mips_elf32_ntradfbsd_le_vec;
    810 extern const bfd_target mips_elf32_trad_be_vec;
    811 extern const bfd_target mips_elf32_trad_le_vec;
    812 extern const bfd_target mips_elf32_tradfbsd_be_vec;
    813 extern const bfd_target mips_elf32_tradfbsd_le_vec;
    814 extern const bfd_target mips_elf32_vxworks_be_vec;
    815 extern const bfd_target mips_elf32_vxworks_le_vec;
    816 extern const bfd_target mips_elf64_be_vec;
    817 extern const bfd_target mips_elf64_le_vec;
    818 extern const bfd_target mips_elf64_trad_be_vec;
    819 extern const bfd_target mips_elf64_trad_le_vec;
    820 extern const bfd_target mips_elf64_tradfbsd_be_vec;
    821 extern const bfd_target mips_elf64_tradfbsd_le_vec;
    822 extern const bfd_target mmix_elf64_vec;
    823 extern const bfd_target mmix_mmo_vec;
    824 extern const bfd_target mn10200_elf32_vec;
    825 extern const bfd_target mn10300_elf32_vec;
    826 extern const bfd_target moxie_elf32_be_vec;
    827 extern const bfd_target moxie_elf32_le_vec;
    828 extern const bfd_target msp430_elf32_vec;
    829 extern const bfd_target msp430_elf32_ti_vec;
    830 extern const bfd_target mt_elf32_vec;
    831 extern const bfd_target nds32_elf32_be_vec;
    832 extern const bfd_target nds32_elf32_le_vec;
    833 extern const bfd_target nds32_elf32_linux_be_vec;
    834 extern const bfd_target nds32_elf32_linux_le_vec;
    835 extern const bfd_target nfp_elf64_vec;
    836 extern const bfd_target ns32k_aout_pc532mach_vec;
    837 extern const bfd_target ns32k_aout_pc532nbsd_vec;
    838 extern const bfd_target or1k_elf32_vec;
    839 extern const bfd_target pdb_vec;
    840 extern const bfd_target pdp11_aout_vec;
    841 extern const bfd_target pef_vec;
    842 extern const bfd_target pef_xlib_vec;
    843 extern const bfd_target pj_elf32_vec;
    844 extern const bfd_target pj_elf32_le_vec;
    845 extern const bfd_target plugin_vec;
    846 extern const bfd_target powerpc_boot_vec;
    847 extern const bfd_target powerpc_elf32_vec;
    848 extern const bfd_target powerpc_elf32_le_vec;
    849 extern const bfd_target powerpc_elf32_fbsd_vec;
    850 extern const bfd_target powerpc_elf32_vxworks_vec;
    851 extern const bfd_target powerpc_elf64_vec;
    852 extern const bfd_target powerpc_elf64_le_vec;
    853 extern const bfd_target powerpc_elf64_fbsd_vec;
    854 extern const bfd_target powerpc_elf64_fbsd_le_vec;
    855 extern const bfd_target powerpc_xcoff_vec;
    856 extern const bfd_target pru_elf32_vec;
    857 extern const bfd_target riscv_elf32_vec;
    858 extern const bfd_target riscv_elf64_vec;
    859 extern const bfd_target riscv_elf32_be_vec;
    860 extern const bfd_target riscv_elf64_be_vec;
    861 extern const bfd_target riscv64_pei_vec;
    862 extern const bfd_target rl78_elf32_vec;
    863 extern const bfd_target rs6000_xcoff64_vec;
    864 extern const bfd_target rs6000_xcoff64_aix_vec;
    865 extern const bfd_target rs6000_xcoff_vec;
    866 extern const bfd_target rx_elf32_be_vec;
    867 extern const bfd_target rx_elf32_be_ns_vec;
    868 extern const bfd_target rx_elf32_le_vec;
    869 extern const bfd_target rx_elf32_linux_le_vec;
    870 extern const bfd_target s390_elf32_vec;
    871 extern const bfd_target s390_elf64_vec;
    872 extern const bfd_target score_elf32_be_vec;
    873 extern const bfd_target score_elf32_le_vec;
    874 extern const bfd_target sh_coff_vec;
    875 extern const bfd_target sh_coff_le_vec;
    876 extern const bfd_target sh_coff_small_vec;
    877 extern const bfd_target sh_coff_small_le_vec;
    878 extern const bfd_target sh_elf32_vec;
    879 extern const bfd_target sh_elf32_le_vec;
    880 extern const bfd_target sh_elf32_fdpic_be_vec;
    881 extern const bfd_target sh_elf32_fdpic_le_vec;
    882 extern const bfd_target sh_elf32_linux_vec;
    883 extern const bfd_target sh_elf32_linux_be_vec;
    884 extern const bfd_target sh_elf32_nbsd_vec;
    885 extern const bfd_target sh_elf32_nbsd_le_vec;
    886 extern const bfd_target sh_elf32_vxworks_vec;
    887 extern const bfd_target sh_elf32_vxworks_le_vec;
    888 extern const bfd_target sh_pe_le_vec;
    889 extern const bfd_target sh_pei_le_vec;
    890 extern const bfd_target sparc_elf32_vec;
    891 extern const bfd_target sparc_elf32_sol2_vec;
    892 extern const bfd_target sparc_elf32_vxworks_vec;
    893 extern const bfd_target sparc_elf64_vec;
    894 extern const bfd_target sparc_elf64_fbsd_vec;
    895 extern const bfd_target sparc_elf64_sol2_vec;
    896 extern const bfd_target spu_elf32_vec;
    897 extern const bfd_target sym_vec;
    898 extern const bfd_target tic30_coff_vec;
    899 extern const bfd_target tic4x_coff0_vec;
    900 extern const bfd_target tic4x_coff0_beh_vec;
    901 extern const bfd_target tic4x_coff1_vec;
    902 extern const bfd_target tic4x_coff1_beh_vec;
    903 extern const bfd_target tic4x_coff2_vec;
    904 extern const bfd_target tic4x_coff2_beh_vec;
    905 extern const bfd_target tic54x_coff0_vec;
    906 extern const bfd_target tic54x_coff0_beh_vec;
    907 extern const bfd_target tic54x_coff1_vec;
    908 extern const bfd_target tic54x_coff1_beh_vec;
    909 extern const bfd_target tic54x_coff2_vec;
    910 extern const bfd_target tic54x_coff2_beh_vec;
    911 extern const bfd_target tic6x_elf32_be_vec;
    912 extern const bfd_target tic6x_elf32_le_vec;
    913 extern const bfd_target tic6x_elf32_c6000_be_vec;
    914 extern const bfd_target tic6x_elf32_c6000_le_vec;
    915 extern const bfd_target tic6x_elf32_linux_be_vec;
    916 extern const bfd_target tic6x_elf32_linux_le_vec;
    917 extern const bfd_target tilegx_elf32_be_vec;
    918 extern const bfd_target tilegx_elf32_le_vec;
    919 extern const bfd_target tilegx_elf64_be_vec;
    920 extern const bfd_target tilegx_elf64_le_vec;
    921 extern const bfd_target tilepro_elf32_vec;
    922 extern const bfd_target v800_elf32_vec;
    923 extern const bfd_target v850_elf32_vec;
    924 extern const bfd_target ft32_elf32_vec;
    925 extern const bfd_target vax_aout_1knbsd_vec;
    926 extern const bfd_target vax_aout_nbsd_vec;
    927 extern const bfd_target vax_elf32_vec;
    928 extern const bfd_target visium_elf32_vec;
    929 extern const bfd_target wasm_vec;
    930 extern const bfd_target wasm32_elf32_vec;
    931 extern const bfd_target x86_64_coff_vec;
    932 extern const bfd_target x86_64_elf32_vec;
    933 extern const bfd_target x86_64_elf64_vec;
    934 extern const bfd_target x86_64_elf64_cloudabi_vec;
    935 extern const bfd_target x86_64_elf64_fbsd_vec;
    936 extern const bfd_target x86_64_elf64_sol2_vec;
    937 extern const bfd_target x86_64_mach_o_vec;
    938 extern const bfd_target x86_64_pe_vec;
    939 extern const bfd_target x86_64_pe_big_vec;
    940 extern const bfd_target x86_64_pei_vec;
    941 extern const bfd_target xgate_elf32_vec;
    942 extern const bfd_target xstormy16_elf32_vec;
    943 extern const bfd_target xtensa_elf32_be_vec;
    944 extern const bfd_target xtensa_elf32_le_vec;
    945 extern const bfd_target z80_coff_vec;
    946 extern const bfd_target z80_elf32_vec;
    947 extern const bfd_target z8k_coff_vec;
    948 
    949 /* These are always included.  */
    950 extern const bfd_target srec_vec;
    951 extern const bfd_target symbolsrec_vec;
    952 extern const bfd_target verilog_vec;
    953 extern const bfd_target tekhex_vec;
    954 extern const bfd_target binary_vec;
    955 extern const bfd_target ihex_vec;
    956 
    957 /* All of the xvecs for core files.  */
    958 extern const bfd_target core_cisco_be_vec;
    959 extern const bfd_target core_cisco_le_vec;
    960 extern const bfd_target core_hppabsd_vec;
    961 extern const bfd_target core_hpux_vec;
    962 extern const bfd_target core_irix_vec;
    963 extern const bfd_target core_netbsd_vec;
    964 extern const bfd_target core_osf_vec;
    965 extern const bfd_target core_ptrace_vec;
    966 extern const bfd_target core_trad_vec;
    967 
    968 static const bfd_target * const _bfd_target_vector[] =
    969 {
    970 #ifdef SELECT_VECS
    971 
    972 	SELECT_VECS,
    973 
    974 #else /* not SELECT_VECS */
    975 
    976 #ifdef DEFAULT_VECTOR
    977 	&DEFAULT_VECTOR,
    978 #endif
    979 	/* This list is alphabetized to make it easy to compare
    980 	   with other vector lists -- the decls above and
    981 	   the case statement in configure.ac.
    982 	   Try to keep it in order when adding new targets, and
    983 	   use a name of the form <cpu>_<format>_<other>_<endian>_vec.
    984 	   Note that sorting is done as if _<endian>_vec wasn't present.
    985 	   Vectors that don't compile on all systems, or aren't finished,
    986 	   should have an entry here with #if 0 around it, to show that
    987 	   it wasn't omitted by mistake.  */
    988 #ifdef BFD64
    989 	&aarch64_elf32_be_vec,
    990 	&aarch64_elf32_le_vec,
    991 	&aarch64_elf64_be_vec,
    992 	&aarch64_elf64_be_cloudabi_vec,
    993 	&aarch64_elf64_le_vec,
    994 	&aarch64_elf64_le_cloudabi_vec,
    995 	&aarch64_mach_o_vec,
    996 	&aarch64_pe_le_vec,
    997 	&aarch64_pei_le_vec,
    998 #endif
    999 
   1000 #ifdef BFD64
   1001 	&amdgcn_elf64_le_vec,
   1002 #endif
   1003 
   1004 #ifdef BFD64
   1005 	&alpha_ecoff_le_vec,
   1006 	&alpha_elf64_vec,
   1007 	&alpha_elf64_fbsd_vec,
   1008 	&alpha_vms_vec,
   1009 #endif
   1010 	&alpha_vms_lib_txt_vec,
   1011 
   1012 	&am33_elf32_linux_vec,
   1013 
   1014 #if 0
   1015 	/* Since a.out files lack decent magic numbers, no way to recognize
   1016 	   which kind of a.out file it is.  */
   1017 	&aout_vec,
   1018 #endif
   1019 
   1020 	&arc_elf32_be_vec,
   1021 	&arc_elf32_le_vec,
   1022 
   1023 	&arm_elf32_be_vec,
   1024 	&arm_elf32_le_vec,
   1025 	&arm_elf32_fdpic_be_vec,
   1026 	&arm_elf32_fdpic_le_vec,
   1027 	&arm_elf32_vxworks_be_vec,
   1028 	&arm_elf32_vxworks_le_vec,
   1029 	&arm_mach_o_vec,
   1030 	&arm_pe_be_vec,
   1031 	&arm_pe_le_vec,
   1032 	&arm_pe_wince_be_vec,
   1033 	&arm_pe_wince_le_vec,
   1034 	&arm_pei_be_vec,
   1035 	&arm_pei_le_vec,
   1036 	&arm_pei_wince_be_vec,
   1037 	&arm_pei_wince_le_vec,
   1038 
   1039 	&avr_elf32_vec,
   1040 
   1041 	&bfin_elf32_vec,
   1042 	&bfin_elf32_fdpic_vec,
   1043 
   1044 	&cr16_elf32_vec,
   1045 
   1046 	&cris_aout_vec,
   1047 	&cris_elf32_vec,
   1048 	&cris_elf32_us_vec,
   1049 
   1050 	&crx_elf32_vec,
   1051 
   1052 	&csky_elf32_be_vec,
   1053 	&csky_elf32_le_vec,
   1054 
   1055 	&d10v_elf32_vec,
   1056 	&d30v_elf32_vec,
   1057 
   1058 	&dlx_elf32_be_vec,
   1059 
   1060 	/* This, and other vectors, may not be used in any *.mt configuration.
   1061 	   But that does not mean they are unnecessary.  If configured with
   1062 	   --enable-targets=all, objdump or gdb should be able to examine
   1063 	   the file even if we don't recognize the machine type.  */
   1064 	&elf32_be_vec,
   1065 	&elf32_le_vec,
   1066 #ifdef BFD64
   1067 	&elf64_be_vec,
   1068 	&elf64_le_vec,
   1069 #endif
   1070 
   1071 	&epiphany_elf32_vec,
   1072 
   1073 	&fr30_elf32_vec,
   1074 
   1075 	&frv_elf32_vec,
   1076 	&frv_elf32_fdpic_vec,
   1077 
   1078 	&h8300_elf32_vec,
   1079 	&h8300_elf32_linux_vec,
   1080 
   1081 	&hppa_elf32_vec,
   1082 	&hppa_elf32_linux_vec,
   1083 	&hppa_elf32_nbsd_vec,
   1084 #ifdef BFD64
   1085 	&hppa_elf64_vec,
   1086 	&hppa_elf64_linux_vec,
   1087 #endif
   1088 	&hppa_som_vec,
   1089 
   1090 	&i386_aout_vec,
   1091 	&i386_aout_bsd_vec,
   1092 	&i386_aout_lynx_vec,
   1093 	&i386_coff_vec,
   1094 	&i386_coff_go32_vec,
   1095 	&i386_coff_go32stubbed_vec,
   1096 	&i386_coff_lynx_vec,
   1097 	&i386_elf32_vec,
   1098 	&i386_elf32_fbsd_vec,
   1099 	&i386_elf32_sol2_vec,
   1100 	&i386_elf32_vxworks_vec,
   1101 	&i386_mach_o_vec,
   1102 	&i386_msdos_vec,
   1103 	&i386_pe_vec,
   1104 	&i386_pe_big_vec,
   1105 	&i386_pei_vec,
   1106 
   1107 	&iamcu_elf32_vec,
   1108 
   1109 #ifdef BFD64
   1110 	&bpf_elf64_be_vec,
   1111 	&bpf_elf64_le_vec,
   1112 #endif
   1113 
   1114 #ifdef BFD64
   1115 #if 0
   1116 	&ia64_elf32_be_vec,
   1117 #endif
   1118 	&ia64_elf32_hpux_be_vec,
   1119 	&ia64_elf64_be_vec,
   1120 	&ia64_elf64_le_vec,
   1121 	&ia64_elf64_hpux_be_vec,
   1122 	&ia64_elf64_vms_vec,
   1123 	&ia64_pei_vec,
   1124 #endif
   1125 
   1126 	&ip2k_elf32_vec,
   1127 	&iq2000_elf32_vec,
   1128 
   1129 #ifdef BFD64
   1130 	&kvx_elf32_vec,
   1131 	&kvx_elf64_vec,
   1132 #endif
   1133 
   1134 	&lm32_elf32_vec,
   1135 
   1136 	&m32c_elf32_vec,
   1137 
   1138 	&m32r_elf32_vec,
   1139 	&m32r_elf32_le_vec,
   1140 	&m32r_elf32_linux_vec,
   1141 	&m32r_elf32_linux_le_vec,
   1142 
   1143 	&m68hc11_elf32_vec,
   1144 	&m68hc12_elf32_vec,
   1145 
   1146 	&m68k_elf32_vec,
   1147 
   1148 	&s12z_elf32_vec,
   1149 
   1150 	&mach_o_be_vec,
   1151 	&mach_o_le_vec,
   1152 	&mach_o_fat_vec,
   1153 
   1154 	&mcore_elf32_be_vec,
   1155 	&mcore_elf32_le_vec,
   1156 	&mcore_pe_be_vec,
   1157 	&mcore_pe_le_vec,
   1158 	&mcore_pei_be_vec,
   1159 	&mcore_pei_le_vec,
   1160 
   1161 	&mep_elf32_vec,
   1162 
   1163 	&metag_elf32_vec,
   1164 
   1165 	&microblaze_elf32_vec,
   1166 
   1167 	&mips_ecoff_be_vec,
   1168 	&mips_ecoff_le_vec,
   1169 	&mips_ecoff_bele_vec,
   1170 #ifdef BFD64
   1171 	&mips_elf32_be_vec,
   1172 	&mips_elf32_le_vec,
   1173 	&mips_elf32_n_be_vec,
   1174 	&mips_elf32_n_le_vec,
   1175 	&mips_elf32_ntrad_be_vec,
   1176 	&mips_elf32_ntrad_le_vec,
   1177 	&mips_elf32_ntradfbsd_be_vec,
   1178 	&mips_elf32_ntradfbsd_le_vec,
   1179 	&mips_elf32_trad_be_vec,
   1180 	&mips_elf32_trad_le_vec,
   1181 	&mips_elf32_tradfbsd_be_vec,
   1182 	&mips_elf32_tradfbsd_le_vec,
   1183 	&mips_elf32_vxworks_be_vec,
   1184 	&mips_elf32_vxworks_le_vec,
   1185 	&mips_elf64_be_vec,
   1186 	&mips_elf64_le_vec,
   1187 	&mips_elf64_trad_be_vec,
   1188 	&mips_elf64_trad_le_vec,
   1189 	&mips_elf64_tradfbsd_be_vec,
   1190 	&mips_elf64_tradfbsd_le_vec,
   1191 #endif
   1192 
   1193 #ifdef BFD64
   1194 	&mmix_elf64_vec,
   1195 	&mmix_mmo_vec,
   1196 #endif
   1197 
   1198 	&mn10200_elf32_vec,
   1199 	&mn10300_elf32_vec,
   1200 
   1201 	&moxie_elf32_be_vec,
   1202 	&moxie_elf32_le_vec,
   1203 
   1204 	&msp430_elf32_vec,
   1205 	&msp430_elf32_ti_vec,
   1206 
   1207 	&mt_elf32_vec,
   1208 
   1209 	&nds32_elf32_be_vec,
   1210 	&nds32_elf32_le_vec,
   1211 	&nds32_elf32_linux_be_vec,
   1212 	&nds32_elf32_linux_le_vec,
   1213 
   1214 #ifdef BFD64
   1215 	&nfp_elf64_vec,
   1216 #endif
   1217 
   1218 	&ns32k_aout_pc532mach_vec,
   1219 	&ns32k_aout_pc532nbsd_vec,
   1220 
   1221 	&or1k_elf32_vec,
   1222 
   1223 	&pdb_vec,
   1224 
   1225 	&pdp11_aout_vec,
   1226 
   1227 	&pef_vec,
   1228 	&pef_xlib_vec,
   1229 
   1230 	&pj_elf32_vec,
   1231 	&pj_elf32_le_vec,
   1232 
   1233 	&powerpc_boot_vec,
   1234 	&powerpc_elf32_vec,
   1235 	&powerpc_elf32_le_vec,
   1236 	&powerpc_elf32_fbsd_vec,
   1237 	&powerpc_elf32_vxworks_vec,
   1238 #ifdef BFD64
   1239 	&powerpc_elf64_vec,
   1240 	&powerpc_elf64_le_vec,
   1241 	&powerpc_elf64_fbsd_vec,
   1242 	&powerpc_elf64_fbsd_le_vec,
   1243 #endif
   1244 #if 0
   1245 	/* This has the same magic number as RS/6000.  */
   1246 	&powerpc_xcoff_vec,
   1247 #endif
   1248 
   1249 	&pru_elf32_vec,
   1250 
   1251 #ifdef BFD64
   1252 	&riscv_elf32_vec,
   1253 	&riscv_elf64_vec,
   1254 	&riscv_elf32_be_vec,
   1255 	&riscv_elf64_be_vec,
   1256 	&riscv64_pei_vec,
   1257 #endif
   1258 	&rl78_elf32_vec,
   1259 
   1260 #ifdef BFD64
   1261 	&rs6000_xcoff64_vec,
   1262 	&rs6000_xcoff64_aix_vec,
   1263 #endif
   1264 	&rs6000_xcoff_vec,
   1265 
   1266 	&rx_elf32_be_vec,
   1267 	&rx_elf32_be_ns_vec,
   1268 	&rx_elf32_le_vec,
   1269 
   1270 	&s390_elf32_vec,
   1271 #ifdef BFD64
   1272 	&s390_elf64_vec,
   1273 #endif
   1274 
   1275 #ifdef BFD64
   1276 	&score_elf32_be_vec,
   1277 	&score_elf32_le_vec,
   1278 #endif
   1279 
   1280 	&sh_coff_vec,
   1281 	&sh_coff_le_vec,
   1282 	&sh_coff_small_vec,
   1283 	&sh_coff_small_le_vec,
   1284 	&sh_elf32_vec,
   1285 	&sh_elf32_le_vec,
   1286 	&sh_elf32_fdpic_be_vec,
   1287 	&sh_elf32_fdpic_le_vec,
   1288 	&sh_elf32_linux_vec,
   1289 	&sh_elf32_linux_be_vec,
   1290 	&sh_elf32_nbsd_vec,
   1291 	&sh_elf32_nbsd_le_vec,
   1292 	&sh_elf32_vxworks_vec,
   1293 	&sh_elf32_vxworks_le_vec,
   1294 	&sh_pe_le_vec,
   1295 	&sh_pei_le_vec,
   1296 
   1297 	&sparc_elf32_vec,
   1298 	&sparc_elf32_sol2_vec,
   1299 	&sparc_elf32_vxworks_vec,
   1300 #ifdef BFD64
   1301 	&sparc_elf64_vec,
   1302 	&sparc_elf64_fbsd_vec,
   1303 	&sparc_elf64_sol2_vec,
   1304 #endif
   1305 
   1306 	&spu_elf32_vec,
   1307 
   1308 	&sym_vec,
   1309 
   1310 	&tic30_coff_vec,
   1311 	&tic54x_coff0_beh_vec,
   1312 	&tic54x_coff0_vec,
   1313 	&tic54x_coff1_beh_vec,
   1314 	&tic54x_coff1_vec,
   1315 	&tic54x_coff2_beh_vec,
   1316 	&tic54x_coff2_vec,
   1317 	&tic6x_elf32_be_vec,
   1318 	&tic6x_elf32_le_vec,
   1319 
   1320 	&tilegx_elf32_be_vec,
   1321 	&tilegx_elf32_le_vec,
   1322 #ifdef BFD64
   1323 	&tilegx_elf64_be_vec,
   1324 	&tilegx_elf64_le_vec,
   1325 #endif
   1326 	&tilepro_elf32_vec,
   1327 
   1328 	&ft32_elf32_vec,
   1329 
   1330 	&v800_elf32_vec,
   1331 	&v850_elf32_vec,
   1332 
   1333 	&vax_aout_1knbsd_vec,
   1334 	&vax_aout_nbsd_vec,
   1335 	&vax_elf32_vec,
   1336 
   1337 	&visium_elf32_vec,
   1338 
   1339 	&wasm_vec,
   1340 	&wasm32_elf32_vec,
   1341 
   1342 #ifdef BFD64
   1343 	&x86_64_coff_vec,
   1344 	&x86_64_elf32_vec,
   1345 	&x86_64_elf64_vec,
   1346 	&x86_64_elf64_cloudabi_vec,
   1347 	&x86_64_elf64_fbsd_vec,
   1348 	&x86_64_elf64_sol2_vec,
   1349 	&x86_64_mach_o_vec,
   1350 	&x86_64_pe_vec,
   1351 	&x86_64_pe_big_vec,
   1352 	&x86_64_pei_vec,
   1353 #endif
   1354 
   1355 	&xgate_elf32_vec,
   1356 
   1357 	&xstormy16_elf32_vec,
   1358 
   1359 	&xtensa_elf32_be_vec,
   1360 	&xtensa_elf32_le_vec,
   1361 
   1362 	&z80_coff_vec,
   1363 	&z80_elf32_vec,
   1364 
   1365 	&z8k_coff_vec,
   1366 
   1367 #ifdef BFD64
   1368 	&loongarch_elf32_vec,
   1369 	&loongarch_elf64_vec,
   1370 	&loongarch64_pei_vec,
   1371 #endif
   1372 
   1373 #endif /* not SELECT_VECS */
   1374 
   1375 /* Always support S-records, for convenience.  */
   1376 	&srec_vec,
   1377 	&symbolsrec_vec,
   1378 /* And verilog.  */
   1379 	&verilog_vec,
   1380 /* And tekhex */
   1381 	&tekhex_vec,
   1382 /* Likewise for binary output.  */
   1383 	&binary_vec,
   1384 /* Likewise for ihex.  */
   1385 	&ihex_vec,
   1386 
   1387 #if BFD_SUPPORTS_PLUGINS
   1388 	&plugin_vec,
   1389 #endif
   1390 
   1391 /* Add any required traditional-core-file-handler.  */
   1392 
   1393 #if 0
   1394 	/* We don't include cisco_core_*_vec.  Although it has a magic number,
   1395 	   the magic number isn't at the beginning of the file, and thus
   1396 	   might spuriously match other kinds of files.  */
   1397 	&core_cisco_be_vec,
   1398 	&core_cisco_le_vec,
   1399 #endif
   1400 #ifdef HPPABSD_CORE
   1401 	&core_hppabsd_vec,
   1402 #endif
   1403 #ifdef HPUX_CORE
   1404 	&core_hpux_vec,
   1405 #endif
   1406 #ifdef IRIX_CORE
   1407 	&core_irix_vec,
   1408 #endif
   1409 #ifdef NETBSD_CORE
   1410 	&core_netbsd_vec,
   1411 #endif
   1412 #ifdef OSF_CORE
   1413 	&core_osf_vec,
   1414 #endif
   1415 #ifdef PTRACE_CORE
   1416 	&core_ptrace_vec,
   1417 #endif
   1418 #ifdef TRAD_CORE
   1419 	&core_trad_vec,
   1420 #endif
   1421 
   1422 	NULL /* end of list marker */
   1423 };
   1424 const bfd_target *const *const bfd_target_vector = _bfd_target_vector;
   1425 
   1426 /* bfd_default_vector[0] contains either the address of the default vector,
   1427    if there is one, or zero if there isn't.  */
   1428 
   1429 const bfd_target *bfd_default_vector[] = {
   1430 #ifdef DEFAULT_VECTOR
   1431 	&DEFAULT_VECTOR,
   1432 #endif
   1433 	NULL
   1434 };
   1435 
   1436 /* bfd_associated_vector[] contains the associated target vectors used
   1437    to reduce the ambiguity in bfd_check_format_matches.  */
   1438 
   1439 static const bfd_target *const _bfd_associated_vector[] = {
   1440 #ifdef ASSOCIATED_VECS
   1441 	ASSOCIATED_VECS,
   1442 #endif
   1443 	NULL
   1444 };
   1445 const bfd_target *const *const bfd_associated_vector = _bfd_associated_vector;
   1446 
   1447 /* When there is an ambiguous match, bfd_check_format_matches puts the
   1448    names of the matching targets in an array.  This variable is the maximum
   1449    number of entries that the array could possibly need.  */
   1450 const size_t _bfd_target_vector_entries = ARRAY_SIZE (_bfd_target_vector);
   1451 
   1452 
   1453 /* This array maps configuration triplets onto BFD vectors.  */
   1455 
   1456 struct targmatch
   1457 {
   1458   /* The configuration triplet.  */
   1459   const char *triplet;
   1460   /* The BFD vector.  If this is NULL, then the vector is found by
   1461      searching forward for the next structure with a non NULL vector
   1462      field.  */
   1463   const bfd_target *vector;
   1464 };
   1465 
   1466 /* targmatch.h is built by Makefile out of config.bfd.  */
   1467 static const struct targmatch bfd_target_match[] = {
   1468 #include "targmatch.h"
   1469   { NULL, NULL }
   1470 };
   1471 
   1472 /* Find a target vector, given a name or configuration triplet.  */
   1473 
   1474 static const bfd_target *
   1475 find_target (const char *name)
   1476 {
   1477   const bfd_target * const *target;
   1478   const struct targmatch *match;
   1479 
   1480   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1481     if (strcmp (name, (*target)->name) == 0)
   1482       return *target;
   1483 
   1484   /* If we couldn't match on the exact name, try matching on the
   1485      configuration triplet.  FIXME: We should run the triplet through
   1486      config.sub first, but that is hard.  */
   1487   for (match = &bfd_target_match[0]; match->triplet != NULL; match++)
   1488     {
   1489       if (fnmatch (match->triplet, name, 0) == 0)
   1490 	{
   1491 	  while (match->vector == NULL)
   1492 	    ++match;
   1493 	  return match->vector;
   1494 	}
   1495     }
   1496 
   1497   bfd_set_error (bfd_error_invalid_target);
   1498   return NULL;
   1499 }
   1500 
   1501 /*
   1502 FUNCTION
   1503 	bfd_set_default_target
   1504 
   1505 SYNOPSIS
   1506 	bool bfd_set_default_target (const char *name);
   1507 
   1508 DESCRIPTION
   1509 	Set the default target vector to use when recognizing a BFD.
   1510 	This takes the name of the target, which may be a BFD target
   1511 	name or a configuration triplet.
   1512 */
   1513 
   1514 bool
   1515 bfd_set_default_target (const char *name)
   1516 {
   1517   const bfd_target *target;
   1518 
   1519   if (bfd_default_vector[0] != NULL
   1520       && strcmp (name, bfd_default_vector[0]->name) == 0)
   1521     return true;
   1522 
   1523   target = find_target (name);
   1524   if (target == NULL)
   1525     return false;
   1526 
   1527   bfd_default_vector[0] = target;
   1528   return true;
   1529 }
   1530 
   1531 /*
   1532 FUNCTION
   1533 	bfd_find_target
   1534 
   1535 SYNOPSIS
   1536 	const bfd_target *bfd_find_target (const char *target_name, bfd *abfd);
   1537 
   1538 DESCRIPTION
   1539 	Return a pointer to the transfer vector for the object target
   1540 	named @var{target_name}.  If @var{target_name} is <<NULL>>,
   1541 	choose the one in the environment variable <<GNUTARGET>>; if
   1542 	that is null or not defined, then choose the first entry in the
   1543 	target list.  Passing in the string "default" or setting the
   1544 	environment variable to "default" will cause the first entry in
   1545 	the target list to be returned, and "target_defaulted" will be
   1546 	set in the BFD if @var{abfd} isn't <<NULL>>.  This causes
   1547 	<<bfd_check_format>> to loop over all the targets to find the
   1548 	one that matches the file being read.
   1549 */
   1550 
   1551 const bfd_target *
   1552 bfd_find_target (const char *target_name, bfd *abfd)
   1553 {
   1554   const char *targname;
   1555   const bfd_target *target;
   1556 
   1557   if (target_name != NULL)
   1558     targname = target_name;
   1559   else
   1560     targname = getenv ("GNUTARGET");
   1561 
   1562   /* This is safe; the vector cannot be null.  */
   1563   if (targname == NULL || strcmp (targname, "default") == 0)
   1564     {
   1565       if (bfd_default_vector[0] != NULL)
   1566 	target = bfd_default_vector[0];
   1567       else
   1568 	target = bfd_target_vector[0];
   1569       if (abfd)
   1570 	{
   1571 	  abfd->xvec = target;
   1572 	  abfd->target_defaulted = true;
   1573 	}
   1574       return target;
   1575     }
   1576 
   1577   if (abfd)
   1578     abfd->target_defaulted = false;
   1579 
   1580   target = find_target (targname);
   1581   if (target == NULL)
   1582     return NULL;
   1583 
   1584   if (abfd)
   1585     abfd->xvec = target;
   1586   return target;
   1587 }
   1588 
   1589 /* Helper function for bfd_get_target_info to determine the target's
   1590    architecture.  This method handles bfd internal target names as
   1591    tuples and triplets.  */
   1592 static bool
   1593 _bfd_find_arch_match (const char *tname, const char **arch,
   1594 		      const char **def_target_arch)
   1595 {
   1596   if (!arch)
   1597     return false;
   1598 
   1599   while (*arch != NULL)
   1600     {
   1601       const char *in_a = strstr (*arch, tname);
   1602       char end_ch = (in_a ? in_a[strlen (tname)] : 0);
   1603 
   1604       if (in_a && (in_a == *arch || in_a[-1] == ':')
   1605 	  && end_ch == 0)
   1606 	{
   1607 	  *def_target_arch = *arch;
   1608 	  return true;
   1609 	}
   1610       arch++;
   1611     }
   1612   return false;
   1613 }
   1614 
   1615 /*
   1616 FUNCTION
   1617 	bfd_get_target_info
   1618 SYNOPSIS
   1619 	const bfd_target *bfd_get_target_info (const char *target_name,
   1620 					       bfd *abfd,
   1621 					       bool *is_bigendian,
   1622 					       int *underscoring,
   1623 					       const char **def_target_arch);
   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 	If @var{is_bigendian} is not <<NULL>>, then set this value to target's
   1636 	endian mode. True for big-endian, FALSE for little-endian or for
   1637 	invalid target.
   1638 	If @var{underscoring} is not <<NULL>>, then set this value to target's
   1639 	underscoring mode. Zero for none-underscoring, -1 for invalid target,
   1640 	else the value of target vector's symbol underscoring.
   1641 	If @var{def_target_arch} is not <<NULL>>, then set it to the architecture
   1642 	string specified by the target_name.
   1643 */
   1644 const bfd_target *
   1645 bfd_get_target_info (const char *target_name, bfd *abfd,
   1646 		     bool *is_bigendian,
   1647 		     int *underscoring, const char **def_target_arch)
   1648 {
   1649   const bfd_target *target_vec;
   1650 
   1651   if (is_bigendian)
   1652     *is_bigendian = false;
   1653   if (underscoring)
   1654     *underscoring = -1;
   1655   if (def_target_arch)
   1656     *def_target_arch = NULL;
   1657   target_vec = bfd_find_target (target_name, abfd);
   1658   if (! target_vec)
   1659     return NULL;
   1660   if (is_bigendian)
   1661     *is_bigendian = target_vec->byteorder == BFD_ENDIAN_BIG;
   1662   if (underscoring)
   1663     *underscoring = ((int) target_vec->symbol_leading_char) & 0xff;
   1664 
   1665   if (def_target_arch)
   1666     {
   1667       const char *tname = target_vec->name;
   1668       const char **arches = bfd_arch_list ();
   1669 
   1670       if (arches && tname)
   1671 	{
   1672 	  char *hyp = strchr (tname, '-');
   1673 
   1674 	  if (hyp != NULL)
   1675 	    {
   1676 	      tname = ++hyp;
   1677 
   1678 	      /* Make sure we detect architecture names
   1679 		 for triplets like "pe-arm-wince-little".  */
   1680 	      if (!_bfd_find_arch_match (tname, arches, def_target_arch))
   1681 		{
   1682 		  char new_tname[50];
   1683 
   1684 		  strcpy (new_tname, hyp);
   1685 		  while ((hyp = strrchr (new_tname, '-')) != NULL)
   1686 		    {
   1687 		      *hyp = 0;
   1688 		      if (_bfd_find_arch_match (new_tname, arches,
   1689 						def_target_arch))
   1690 			break;
   1691 		    }
   1692 		}
   1693 	    }
   1694 	  else
   1695 	    _bfd_find_arch_match (tname, arches, def_target_arch);
   1696 	}
   1697 
   1698       free (arches);
   1699     }
   1700   return target_vec;
   1701 }
   1702 
   1703 /*
   1704 FUNCTION
   1705 	bfd_target_list
   1706 
   1707 SYNOPSIS
   1708 	const char ** bfd_target_list (void);
   1709 
   1710 DESCRIPTION
   1711 	Return a freshly malloced NULL-terminated
   1712 	vector of the names of all the valid BFD targets. Do not
   1713 	modify the names.
   1714 
   1715 */
   1716 
   1717 const char **
   1718 bfd_target_list (void)
   1719 {
   1720   int vec_length = 0;
   1721   size_t amt;
   1722   const bfd_target * const *target;
   1723   const  char **name_list, **name_ptr;
   1724 
   1725   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1726     vec_length++;
   1727 
   1728   amt = (vec_length + 1) * sizeof (char **);
   1729   name_ptr = name_list = (const  char **) bfd_malloc (amt);
   1730 
   1731   if (name_list == NULL)
   1732     return NULL;
   1733 
   1734   for (target = &bfd_target_vector[0]; *target != NULL; target++)
   1735     if (target == &bfd_target_vector[0]
   1736 	|| *target != bfd_target_vector[0])
   1737       *name_ptr++ = (*target)->name;
   1738 
   1739   *name_ptr = NULL;
   1740   return name_list;
   1741 }
   1742 
   1743 /*
   1744 FUNCTION
   1745 	bfd_iterate_over_targets
   1746 
   1747 SYNOPSIS
   1748 	const bfd_target *bfd_iterate_over_targets
   1749 	  (int (*func) (const bfd_target *, void *),
   1750 	   void *data);
   1751 
   1752 DESCRIPTION
   1753 	Call @var{func} for each target in the list of BFD target
   1754 	vectors, passing @var{data} to @var{func}.  Stop iterating if
   1755 	@var{func} returns a non-zero result, and return that target
   1756 	vector.  Return NULL if @var{func} always returns zero.
   1757 */
   1758 
   1759 const bfd_target *
   1760 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *),
   1761 			  void *data)
   1762 {
   1763   const bfd_target *const *target;
   1764 
   1765   for (target = bfd_target_vector; *target != NULL; ++target)
   1766     if (func (*target, data))
   1767       return *target;
   1768 
   1769   return NULL;
   1770 }
   1771 
   1772 /*
   1773 FUNCTION
   1774 	bfd_flavour_name
   1775 
   1776 SYNOPSIS
   1777 	const char *bfd_flavour_name (enum bfd_flavour flavour);
   1778 
   1779 DESCRIPTION
   1780 	Return the string form of @var{flavour}.
   1781 */
   1782 
   1783 const char *
   1784 bfd_flavour_name (enum bfd_flavour flavour)
   1785 {
   1786   switch (flavour)
   1787     {
   1788     case bfd_target_unknown_flavour: return "unknown file format";
   1789     case bfd_target_aout_flavour: return "a.out";
   1790     case bfd_target_coff_flavour: return "COFF";
   1791     case bfd_target_ecoff_flavour: return "ECOFF";
   1792     case bfd_target_xcoff_flavour: return "XCOFF";
   1793     case bfd_target_elf_flavour: return "ELF";
   1794     case bfd_target_tekhex_flavour: return "Tekhex";
   1795     case bfd_target_srec_flavour: return "Srec";
   1796     case bfd_target_verilog_flavour: return "Verilog";
   1797     case bfd_target_ihex_flavour: return "Ihex";
   1798     case bfd_target_som_flavour: return "SOM";
   1799     case bfd_target_msdos_flavour: return "MSDOS";
   1800     case bfd_target_evax_flavour: return "Evax";
   1801     case bfd_target_mmo_flavour: return "mmo";
   1802     case bfd_target_mach_o_flavour: return "MACH_O";
   1803     case bfd_target_pef_flavour: return "PEF";
   1804     case bfd_target_pef_xlib_flavour: return "PEF_XLIB";
   1805     case bfd_target_sym_flavour: return "SYM";
   1806     /* There is no "default" case here so that -Wswitch (part of -Wall)
   1807        catches missing entries.  */
   1808     }
   1809 
   1810   abort ();
   1811 }
   1812