1 /* Generic target-file-type support for the BFD library. 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 3 2000, 2001, 2002, 2003, 2004, 2005 4 Free Software Foundation, Inc. 5 Written by Cygnus Support. 6 7 This file is part of BFD, the Binary File Descriptor library. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 2 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 22 23 #include "bfd.h" 24 #include "sysdep.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 This is the structure which defines the type of BFD this is. The 138 <<xvec>> member of the struct <<bfd>> itself points here. Each 139 module that implements access to a different target under BFD, 140 defines one of these. 141 142 FIXME, these names should be rationalised with the names of 143 the entry points which call them. Too bad we can't have one 144 macro to define them both! 145 146 .enum bfd_flavour 147 .{ 148 . bfd_target_unknown_flavour, 149 . bfd_target_aout_flavour, 150 . bfd_target_coff_flavour, 151 . bfd_target_ecoff_flavour, 152 . bfd_target_xcoff_flavour, 153 . bfd_target_elf_flavour, 154 . bfd_target_ieee_flavour, 155 . bfd_target_nlm_flavour, 156 . bfd_target_oasys_flavour, 157 . bfd_target_tekhex_flavour, 158 . bfd_target_srec_flavour, 159 . bfd_target_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 .typedef struct bfd_target 179 .{ 180 . {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc. *} 181 . char *name; 182 . 183 . {* The "flavour" of a back end is a general indication about 184 . the contents of a file. *} 185 . enum bfd_flavour flavour; 186 . 187 . {* The order of bytes within the data area of a file. *} 188 . enum bfd_endian byteorder; 189 . 190 . {* The order of bytes within the header parts of a file. *} 191 . enum bfd_endian header_byteorder; 192 . 193 . {* A mask of all the flags which an executable may have set - 194 . from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>. *} 195 . flagword object_flags; 196 . 197 . {* A mask of all the flags which a section may have set - from 198 . the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>. *} 199 . flagword section_flags; 200 . 201 . {* The character normally found at the front of a symbol. 202 . (if any), perhaps `_'. *} 203 . char symbol_leading_char; 204 . 205 . {* The pad character for file names within an archive header. *} 206 . char ar_pad_char; 207 . 208 . {* The maximum number of characters in an archive header. *} 209 . unsigned short ar_max_namelen; 210 . 211 . {* Entries for byte swapping for data. These are different from the 212 . other entry points, since they don't take a BFD as the first argument. 213 . Certain other handlers could do the same. *} 214 . bfd_uint64_t (*bfd_getx64) (const void *); 215 . bfd_int64_t (*bfd_getx_signed_64) (const void *); 216 . void (*bfd_putx64) (bfd_uint64_t, void *); 217 . bfd_vma (*bfd_getx32) (const void *); 218 . bfd_signed_vma (*bfd_getx_signed_32) (const void *); 219 . void (*bfd_putx32) (bfd_vma, void *); 220 . bfd_vma (*bfd_getx16) (const void *); 221 . bfd_signed_vma (*bfd_getx_signed_16) (const void *); 222 . void (*bfd_putx16) (bfd_vma, void *); 223 . 224 . {* Byte swapping for the headers. *} 225 . bfd_uint64_t (*bfd_h_getx64) (const void *); 226 . bfd_int64_t (*bfd_h_getx_signed_64) (const void *); 227 . void (*bfd_h_putx64) (bfd_uint64_t, void *); 228 . bfd_vma (*bfd_h_getx32) (const void *); 229 . bfd_signed_vma (*bfd_h_getx_signed_32) (const void *); 230 . void (*bfd_h_putx32) (bfd_vma, void *); 231 . bfd_vma (*bfd_h_getx16) (const void *); 232 . bfd_signed_vma (*bfd_h_getx_signed_16) (const void *); 233 . void (*bfd_h_putx16) (bfd_vma, void *); 234 . 235 . {* Format dependent routines: these are vectors of entry points 236 . within the target vector structure, one for each format to check. *} 237 . 238 . {* Check the format of a file being read. Return a <<bfd_target *>> or zero. *} 239 . const struct bfd_target *(*_bfd_check_format[bfd_type_end]) (bfd *); 240 . 241 . {* Set the format of a file being written. *} 242 . bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *); 243 . 244 . {* Write cached information into a file being written, at <<bfd_close>>. *} 245 . bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *); 246 . 247 The general target vector. These vectors are initialized using the 248 BFD_JUMP_TABLE macros. 249 . 250 . {* Generic entry points. *} 251 .#define BFD_JUMP_TABLE_GENERIC(NAME) \ 252 . NAME##_close_and_cleanup, \ 253 . NAME##_bfd_free_cached_info, \ 254 . NAME##_new_section_hook, \ 255 . NAME##_get_section_contents, \ 256 . NAME##_get_section_contents_in_window 257 . 258 . {* Called when the BFD is being closed to do any necessary cleanup. *} 259 . bfd_boolean (*_close_and_cleanup) (bfd *); 260 . {* Ask the BFD to free all cached information. *} 261 . bfd_boolean (*_bfd_free_cached_info) (bfd *); 262 . {* Called when a new section is created. *} 263 . bfd_boolean (*_new_section_hook) (bfd *, sec_ptr); 264 . {* Read the contents of a section. *} 265 . bfd_boolean (*_bfd_get_section_contents) 266 . (bfd *, sec_ptr, void *, file_ptr, bfd_size_type); 267 . bfd_boolean (*_bfd_get_section_contents_in_window) 268 . (bfd *, sec_ptr, bfd_window *, file_ptr, bfd_size_type); 269 . 270 . {* Entry points to copy private data. *} 271 .#define BFD_JUMP_TABLE_COPY(NAME) \ 272 . NAME##_bfd_copy_private_bfd_data, \ 273 . NAME##_bfd_merge_private_bfd_data, \ 274 . _bfd_generic_init_private_section_data, \ 275 . NAME##_bfd_copy_private_section_data, \ 276 . NAME##_bfd_copy_private_symbol_data, \ 277 . NAME##_bfd_copy_private_header_data, \ 278 . NAME##_bfd_set_private_flags, \ 279 . NAME##_bfd_print_private_bfd_data 280 . 281 . {* Called to copy BFD general private data from one object file 282 . to another. *} 283 . bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *); 284 . {* Called to merge BFD general private data from one object file 285 . to a common output file when linking. *} 286 . bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, bfd *); 287 . {* Called to initialize BFD private section data from one object file 288 . to another. *} 289 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \ 290 . BFD_SEND (obfd, _bfd_init_private_section_data, (ibfd, isec, obfd, osec, link_info)) 291 . bfd_boolean (*_bfd_init_private_section_data) 292 . (bfd *, sec_ptr, bfd *, sec_ptr, struct bfd_link_info *); 293 . {* Called to copy BFD private section data from one object file 294 . to another. *} 295 . bfd_boolean (*_bfd_copy_private_section_data) 296 . (bfd *, sec_ptr, bfd *, sec_ptr); 297 . {* Called to copy BFD private symbol data from one symbol 298 . to another. *} 299 . bfd_boolean (*_bfd_copy_private_symbol_data) 300 . (bfd *, asymbol *, bfd *, asymbol *); 301 . {* Called to copy BFD private header data from one object file 302 . to another. *} 303 . bfd_boolean (*_bfd_copy_private_header_data) 304 . (bfd *, bfd *); 305 . {* Called to set private backend flags. *} 306 . bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword); 307 . 308 . {* Called to print private BFD data. *} 309 . bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *); 310 . 311 . {* Core file entry points. *} 312 .#define BFD_JUMP_TABLE_CORE(NAME) \ 313 . NAME##_core_file_failing_command, \ 314 . NAME##_core_file_failing_signal, \ 315 . NAME##_core_file_matches_executable_p 316 . 317 . char * (*_core_file_failing_command) (bfd *); 318 . int (*_core_file_failing_signal) (bfd *); 319 . bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *); 320 . 321 . {* Archive entry points. *} 322 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \ 323 . NAME##_slurp_armap, \ 324 . NAME##_slurp_extended_name_table, \ 325 . NAME##_construct_extended_name_table, \ 326 . NAME##_truncate_arname, \ 327 . NAME##_write_armap, \ 328 . NAME##_read_ar_hdr, \ 329 . NAME##_openr_next_archived_file, \ 330 . NAME##_get_elt_at_index, \ 331 . NAME##_generic_stat_arch_elt, \ 332 . NAME##_update_armap_timestamp 333 . 334 . bfd_boolean (*_bfd_slurp_armap) (bfd *); 335 . bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *); 336 . bfd_boolean (*_bfd_construct_extended_name_table) 337 . (bfd *, char **, bfd_size_type *, const char **); 338 . void (*_bfd_truncate_arname) (bfd *, const char *, char *); 339 . bfd_boolean (*write_armap) 340 . (bfd *, unsigned int, struct orl *, unsigned int, int); 341 . void * (*_bfd_read_ar_hdr_fn) (bfd *); 342 . bfd * (*openr_next_archived_file) (bfd *, bfd *); 343 .#define bfd_get_elt_at_index(b,i) BFD_SEND (b, _bfd_get_elt_at_index, (b,i)) 344 . bfd * (*_bfd_get_elt_at_index) (bfd *, symindex); 345 . int (*_bfd_stat_arch_elt) (bfd *, struct stat *); 346 . bfd_boolean (*_bfd_update_armap_timestamp) (bfd *); 347 . 348 . {* Entry points used for symbols. *} 349 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \ 350 . NAME##_get_symtab_upper_bound, \ 351 . NAME##_canonicalize_symtab, \ 352 . NAME##_make_empty_symbol, \ 353 . NAME##_print_symbol, \ 354 . NAME##_get_symbol_info, \ 355 . NAME##_bfd_is_local_label_name, \ 356 . NAME##_bfd_is_target_special_symbol, \ 357 . NAME##_get_lineno, \ 358 . NAME##_find_nearest_line, \ 359 . _bfd_generic_find_line, \ 360 . NAME##_find_inliner_info, \ 361 . NAME##_bfd_make_debug_symbol, \ 362 . NAME##_read_minisymbols, \ 363 . NAME##_minisymbol_to_symbol 364 . 365 . long (*_bfd_get_symtab_upper_bound) (bfd *); 366 . long (*_bfd_canonicalize_symtab) 367 . (bfd *, struct bfd_symbol **); 368 . struct bfd_symbol * 369 . (*_bfd_make_empty_symbol) (bfd *); 370 . void (*_bfd_print_symbol) 371 . (bfd *, void *, struct bfd_symbol *, bfd_print_symbol_type); 372 .#define bfd_print_symbol(b,p,s,e) BFD_SEND (b, _bfd_print_symbol, (b,p,s,e)) 373 . void (*_bfd_get_symbol_info) 374 . (bfd *, struct bfd_symbol *, symbol_info *); 375 .#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e)) 376 . bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *); 377 . bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *); 378 . alent * (*_get_lineno) (bfd *, struct bfd_symbol *); 379 . bfd_boolean (*_bfd_find_nearest_line) 380 . (bfd *, struct bfd_section *, struct bfd_symbol **, bfd_vma, 381 . const char **, const char **, unsigned int *); 382 . bfd_boolean (*_bfd_find_line) 383 . (bfd *, struct bfd_symbol **, struct bfd_symbol *, 384 . const char **, unsigned int *); 385 . bfd_boolean (*_bfd_find_inliner_info) 386 . (bfd *, const char **, const char **, unsigned int *); 387 . {* Back-door to allow format-aware applications to create debug symbols 388 . while using BFD for everything else. Currently used by the assembler 389 . when creating COFF files. *} 390 . asymbol * (*_bfd_make_debug_symbol) 391 . (bfd *, void *, unsigned long size); 392 .#define bfd_read_minisymbols(b, d, m, s) \ 393 . BFD_SEND (b, _read_minisymbols, (b, d, m, s)) 394 . long (*_read_minisymbols) 395 . (bfd *, bfd_boolean, void **, unsigned int *); 396 .#define bfd_minisymbol_to_symbol(b, d, m, f) \ 397 . BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f)) 398 . asymbol * (*_minisymbol_to_symbol) 399 . (bfd *, bfd_boolean, const void *, asymbol *); 400 . 401 . {* Routines for relocs. *} 402 .#define BFD_JUMP_TABLE_RELOCS(NAME) \ 403 . NAME##_get_reloc_upper_bound, \ 404 . NAME##_canonicalize_reloc, \ 405 . NAME##_bfd_reloc_type_lookup 406 . 407 . long (*_get_reloc_upper_bound) (bfd *, sec_ptr); 408 . long (*_bfd_canonicalize_reloc) 409 . (bfd *, sec_ptr, arelent **, struct bfd_symbol **); 410 . {* See documentation on reloc types. *} 411 . reloc_howto_type * 412 . (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type); 413 . 414 . {* Routines used when writing an object file. *} 415 .#define BFD_JUMP_TABLE_WRITE(NAME) \ 416 . NAME##_set_arch_mach, \ 417 . NAME##_set_section_contents 418 . 419 . bfd_boolean (*_bfd_set_arch_mach) 420 . (bfd *, enum bfd_architecture, unsigned long); 421 . bfd_boolean (*_bfd_set_section_contents) 422 . (bfd *, sec_ptr, const void *, file_ptr, bfd_size_type); 423 . 424 . {* Routines used by the linker. *} 425 .#define BFD_JUMP_TABLE_LINK(NAME) \ 426 . NAME##_sizeof_headers, \ 427 . NAME##_bfd_get_relocated_section_contents, \ 428 . NAME##_bfd_relax_section, \ 429 . NAME##_bfd_link_hash_table_create, \ 430 . NAME##_bfd_link_hash_table_free, \ 431 . NAME##_bfd_link_add_symbols, \ 432 . NAME##_bfd_link_just_syms, \ 433 . NAME##_bfd_final_link, \ 434 . NAME##_bfd_link_split_section, \ 435 . NAME##_bfd_gc_sections, \ 436 . NAME##_bfd_merge_sections, \ 437 . NAME##_bfd_is_group_section, \ 438 . NAME##_bfd_discard_group, \ 439 . NAME##_section_already_linked \ 440 . 441 . int (*_bfd_sizeof_headers) (bfd *, bfd_boolean); 442 . bfd_byte * (*_bfd_get_relocated_section_contents) 443 . (bfd *, struct bfd_link_info *, struct bfd_link_order *, 444 . bfd_byte *, bfd_boolean, struct bfd_symbol **); 445 . 446 . bfd_boolean (*_bfd_relax_section) 447 . (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *); 448 . 449 . {* Create a hash table for the linker. Different backends store 450 . different information in this table. *} 451 . struct bfd_link_hash_table * 452 . (*_bfd_link_hash_table_create) (bfd *); 453 . 454 . {* Release the memory associated with the linker hash table. *} 455 . void (*_bfd_link_hash_table_free) (struct bfd_link_hash_table *); 456 . 457 . {* Add symbols from this object file into the hash table. *} 458 . bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *); 459 . 460 . {* Indicate that we are only retrieving symbol values from this section. *} 461 . void (*_bfd_link_just_syms) (asection *, struct bfd_link_info *); 462 . 463 . {* Do a link based on the link_order structures attached to each 464 . section of the BFD. *} 465 . bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *); 466 . 467 . {* Should this section be split up into smaller pieces during linking. *} 468 . bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *); 469 . 470 . {* Remove sections that are not referenced from the output. *} 471 . bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *); 472 . 473 . {* Attempt to merge SEC_MERGE sections. *} 474 . bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *); 475 . 476 . {* Is this section a member of a group? *} 477 . bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *); 478 . 479 . {* Discard members of a group. *} 480 . bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *); 481 . 482 . {* Check if SEC has been already linked during a reloceatable or 483 . final link. *} 484 . void (*_section_already_linked) (bfd *, struct bfd_section *, 485 . struct bfd_link_info *); 486 . 487 . {* Routines to handle dynamic symbols and relocs. *} 488 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \ 489 . NAME##_get_dynamic_symtab_upper_bound, \ 490 . NAME##_canonicalize_dynamic_symtab, \ 491 . NAME##_get_synthetic_symtab, \ 492 . NAME##_get_dynamic_reloc_upper_bound, \ 493 . NAME##_canonicalize_dynamic_reloc 494 . 495 . {* Get the amount of memory required to hold the dynamic symbols. *} 496 . long (*_bfd_get_dynamic_symtab_upper_bound) (bfd *); 497 . {* Read in the dynamic symbols. *} 498 . long (*_bfd_canonicalize_dynamic_symtab) 499 . (bfd *, struct bfd_symbol **); 500 . {* Create synthetized symbols. *} 501 . long (*_bfd_get_synthetic_symtab) 502 . (bfd *, long, struct bfd_symbol **, long, struct bfd_symbol **, 503 . struct bfd_symbol **); 504 . {* Get the amount of memory required to hold the dynamic relocs. *} 505 . long (*_bfd_get_dynamic_reloc_upper_bound) (bfd *); 506 . {* Read in the dynamic relocs. *} 507 . long (*_bfd_canonicalize_dynamic_reloc) 508 . (bfd *, arelent **, struct bfd_symbol **); 509 . 510 511 A pointer to an alternative bfd_target in case the current one is not 512 satisfactory. This can happen when the target cpu supports both big 513 and little endian code, and target chosen by the linker has the wrong 514 endianness. The function open_output() in ld/ldlang.c uses this field 515 to find an alternative output format that is suitable. 516 517 . {* Opposite endian version of this target. *} 518 . const struct bfd_target * alternative_target; 519 . 520 521 . {* Data for use by back-end routines, which isn't 522 . generic enough to belong in this structure. *} 523 . const void *backend_data; 524 . 525 .} bfd_target; 526 . 527 */ 528 529 /* All known xvecs (even those that don't compile on all systems). 530 Alphabetized for easy reference. 531 They are listed a second time below, since 532 we can't intermix extern's and initializers. */ 533 extern const bfd_target a_out_adobe_vec; 534 extern const bfd_target aix5coff64_vec; 535 extern const bfd_target aout0_big_vec; 536 extern const bfd_target aout_arm_big_vec; 537 extern const bfd_target aout_arm_little_vec; 538 extern const bfd_target aout_mips_big_vec; 539 extern const bfd_target aout_mips_little_vec; 540 extern const bfd_target apollocoff_vec; 541 extern const bfd_target arm_epoc_pe_big_vec; 542 extern const bfd_target arm_epoc_pe_little_vec; 543 extern const bfd_target arm_epoc_pei_big_vec; 544 extern const bfd_target arm_epoc_pei_little_vec; 545 extern const bfd_target armcoff_big_vec; 546 extern const bfd_target armcoff_little_vec; 547 extern const bfd_target armnetbsd_vec; 548 extern const bfd_target armpe_big_vec; 549 extern const bfd_target armpe_little_vec; 550 extern const bfd_target armpei_big_vec; 551 extern const bfd_target armpei_little_vec; 552 extern const bfd_target b_out_vec_big_host; 553 extern const bfd_target b_out_vec_little_host; 554 extern const bfd_target bfd_efi_app_ia32_vec; 555 extern const bfd_target bfd_efi_app_x86_64_vec; 556 extern const bfd_target bfd_efi_app_ia64_vec; 557 extern const bfd_target bfd_elf32_avr_vec; 558 extern const bfd_target bfd_elf32_bfin_vec; 559 extern const bfd_target bfd_elf32_bfinfdpic_vec; 560 extern const bfd_target bfd_elf32_big_generic_vec; 561 extern const bfd_target bfd_elf32_bigarc_vec; 562 extern const bfd_target bfd_elf32_bigarm_vec; 563 extern const bfd_target bfd_elf32_bigarm_symbian_vec; 564 extern const bfd_target bfd_elf32_bigarm_vxworks_vec; 565 extern const bfd_target bfd_elf32_bigmips_vec; 566 extern const bfd_target bfd_elf32_bigmips_vxworks_vec; 567 extern const bfd_target bfd_elf32_cr16c_vec; 568 extern const bfd_target bfd_elf32_cris_vec; 569 extern const bfd_target bfd_elf32_crx_vec; 570 extern const bfd_target bfd_elf32_d10v_vec; 571 extern const bfd_target bfd_elf32_d30v_vec; 572 extern const bfd_target bfd_elf32_dlx_big_vec; 573 extern const bfd_target bfd_elf32_fr30_vec; 574 extern const bfd_target bfd_elf32_frv_vec; 575 extern const bfd_target bfd_elf32_frvfdpic_vec; 576 extern const bfd_target bfd_elf32_h8300_vec; 577 extern const bfd_target bfd_elf32_hppa_linux_vec; 578 extern const bfd_target bfd_elf32_hppa_nbsd_vec; 579 extern const bfd_target bfd_elf32_hppa_vec; 580 extern const bfd_target bfd_elf32_i370_vec; 581 extern const bfd_target bfd_elf32_i386_freebsd_vec; 582 extern const bfd_target bfd_elf32_i386_vxworks_vec; 583 extern const bfd_target bfd_elf32_i386_vec; 584 extern const bfd_target bfd_elf32_i860_little_vec; 585 extern const bfd_target bfd_elf32_i860_vec; 586 extern const bfd_target bfd_elf32_i960_vec; 587 extern const bfd_target bfd_elf32_ia64_big_vec; 588 extern const bfd_target bfd_elf32_ia64_hpux_big_vec; 589 extern const bfd_target bfd_elf32_ip2k_vec; 590 extern const bfd_target bfd_elf32_iq2000_vec; 591 extern const bfd_target bfd_elf32_little_generic_vec; 592 extern const bfd_target bfd_elf32_littlearc_vec; 593 extern const bfd_target bfd_elf32_littlearm_vec; 594 extern const bfd_target bfd_elf32_littlearm_symbian_vec; 595 extern const bfd_target bfd_elf32_littlearm_vxworks_vec; 596 extern const bfd_target bfd_elf32_littlemips_vec; 597 extern const bfd_target bfd_elf32_littlemips_vxworks_vec; 598 extern const bfd_target bfd_elf32_m32c_vec; 599 extern const bfd_target bfd_elf32_m32r_vec; 600 extern const bfd_target bfd_elf32_m32rle_vec; 601 extern const bfd_target bfd_elf32_m32rlin_vec; 602 extern const bfd_target bfd_elf32_m32rlelin_vec; 603 extern const bfd_target bfd_elf32_m68hc11_vec; 604 extern const bfd_target bfd_elf32_m68hc12_vec; 605 extern const bfd_target bfd_elf32_m68k_vec; 606 extern const bfd_target bfd_elf32_m88k_vec; 607 extern const bfd_target bfd_elf32_mcore_big_vec; 608 extern const bfd_target bfd_elf32_mcore_little_vec; 609 extern const bfd_target bfd_elf32_mn10200_vec; 610 extern const bfd_target bfd_elf32_mn10300_vec; 611 extern const bfd_target bfd_elf32_mt_vec; 612 extern const bfd_target bfd_elf32_msp430_vec; 613 extern const bfd_target bfd_elf32_nbigmips_vec; 614 extern const bfd_target bfd_elf32_nlittlemips_vec; 615 extern const bfd_target bfd_elf32_ntradbigmips_vec; 616 extern const bfd_target bfd_elf32_ntradlittlemips_vec; 617 extern const bfd_target bfd_elf32_openrisc_vec; 618 extern const bfd_target bfd_elf32_or32_big_vec; 619 extern const bfd_target bfd_elf32_pj_vec; 620 extern const bfd_target bfd_elf32_pjl_vec; 621 extern const bfd_target bfd_elf32_powerpc_vec; 622 extern const bfd_target bfd_elf32_powerpcle_vec; 623 extern const bfd_target bfd_elf32_powerpc_vxworks_vec; 624 extern const bfd_target bfd_elf32_s390_vec; 625 extern const bfd_target bfd_elf32_sh64_vec; 626 extern const bfd_target bfd_elf32_sh64l_vec; 627 extern const bfd_target bfd_elf32_sh64lin_vec; 628 extern const bfd_target bfd_elf32_sh64blin_vec; 629 extern const bfd_target bfd_elf32_sh64lnbsd_vec; 630 extern const bfd_target bfd_elf32_sh64nbsd_vec; 631 extern const bfd_target bfd_elf32_sh_vec; 632 extern const bfd_target bfd_elf32_shblin_vec; 633 extern const bfd_target bfd_elf32_shl_vec; 634 extern const bfd_target bfd_elf32_shl_symbian_vec; 635 extern const bfd_target bfd_elf32_shlin_vec; 636 extern const bfd_target bfd_elf32_shlnbsd_vec; 637 extern const bfd_target bfd_elf32_shlobsd_vec; 638 extern const bfd_target bfd_elf32_shnbsd_vec; 639 extern const bfd_target bfd_elf32_shobsd_vec; 640 extern const bfd_target bfd_elf32_sparc_vec; 641 extern const bfd_target bfd_elf32_sparc_vxworks_vec; 642 extern const bfd_target bfd_elf32_tradbigmips_vec; 643 extern const bfd_target bfd_elf32_tradlittlemips_vec; 644 extern const bfd_target bfd_elf32_us_cris_vec; 645 extern const bfd_target bfd_elf32_v850_vec; 646 extern const bfd_target bfd_elf32_vax_vec; 647 extern const bfd_target bfd_elf32_xc16x_vec; 648 extern const bfd_target bfd_elf32_xstormy16_vec; 649 extern const bfd_target bfd_elf32_xtensa_be_vec; 650 extern const bfd_target bfd_elf32_xtensa_le_vec; 651 extern const bfd_target bfd_elf64_alpha_freebsd_vec; 652 extern const bfd_target bfd_elf64_alpha_vec; 653 extern const bfd_target bfd_elf64_big_generic_vec; 654 extern const bfd_target bfd_elf64_bigmips_vec; 655 extern const bfd_target bfd_elf64_hppa_linux_vec; 656 extern const bfd_target bfd_elf64_hppa_vec; 657 extern const bfd_target bfd_elf64_ia64_big_vec; 658 extern const bfd_target bfd_elf64_ia64_hpux_big_vec; 659 extern const bfd_target bfd_elf64_ia64_little_vec; 660 extern const bfd_target bfd_elf64_little_generic_vec; 661 extern const bfd_target bfd_elf64_littlemips_vec; 662 extern const bfd_target bfd_elf64_mmix_vec; 663 extern const bfd_target bfd_elf64_powerpc_vec; 664 extern const bfd_target bfd_elf64_powerpcle_vec; 665 extern const bfd_target bfd_elf64_s390_vec; 666 extern const bfd_target bfd_elf64_sh64_vec; 667 extern const bfd_target bfd_elf64_sh64l_vec; 668 extern const bfd_target bfd_elf64_sh64lin_vec; 669 extern const bfd_target bfd_elf64_sh64blin_vec; 670 extern const bfd_target bfd_elf64_sh64lnbsd_vec; 671 extern const bfd_target bfd_elf64_sh64nbsd_vec; 672 extern const bfd_target bfd_elf64_sparc_vec; 673 extern const bfd_target bfd_elf64_tradbigmips_vec; 674 extern const bfd_target bfd_elf64_tradlittlemips_vec; 675 extern const bfd_target bfd_elf64_x86_64_vec; 676 extern const bfd_target bfd_mmo_vec; 677 extern const bfd_target bfd_powerpc_pe_vec; 678 extern const bfd_target bfd_powerpc_pei_vec; 679 extern const bfd_target bfd_powerpcle_pe_vec; 680 extern const bfd_target bfd_powerpcle_pei_vec; 681 extern const bfd_target cris_aout_vec; 682 extern const bfd_target demo_64_vec; 683 extern const bfd_target ecoff_big_vec; 684 extern const bfd_target ecoff_biglittle_vec; 685 extern const bfd_target ecoff_little_vec; 686 extern const bfd_target ecoffalpha_little_vec; 687 extern const bfd_target go32coff_vec; 688 extern const bfd_target go32stubbedcoff_vec; 689 extern const bfd_target h8300coff_vec; 690 extern const bfd_target h8500coff_vec; 691 extern const bfd_target host_aout_vec; 692 extern const bfd_target hp300bsd_vec; 693 extern const bfd_target hp300hpux_vec; 694 extern const bfd_target i386aout_vec; 695 extern const bfd_target i386bsd_vec; 696 extern const bfd_target i386coff_vec; 697 extern const bfd_target i386dynix_vec; 698 extern const bfd_target i386freebsd_vec; 699 extern const bfd_target i386linux_vec; 700 extern const bfd_target i386lynx_aout_vec; 701 extern const bfd_target i386lynx_coff_vec; 702 extern const bfd_target i386mach3_vec; 703 extern const bfd_target i386msdos_vec; 704 extern const bfd_target i386netbsd_vec; 705 extern const bfd_target i386os9k_vec; 706 extern const bfd_target i386pe_vec; 707 extern const bfd_target i386pei_vec; 708 extern const bfd_target i860coff_vec; 709 extern const bfd_target icoff_big_vec; 710 extern const bfd_target icoff_little_vec; 711 extern const bfd_target ieee_vec; 712 extern const bfd_target m68k4knetbsd_vec; 713 extern const bfd_target m68kaux_coff_vec; 714 extern const bfd_target m68kcoff_vec; 715 extern const bfd_target m68kcoffun_vec; 716 extern const bfd_target m68klinux_vec; 717 extern const bfd_target m68knetbsd_vec; 718 extern const bfd_target m68ksysvcoff_vec; 719 extern const bfd_target m88kbcs_vec; 720 extern const bfd_target m88kmach3_vec; 721 extern const bfd_target m88kopenbsd_vec; 722 extern const bfd_target mach_o_be_vec; 723 extern const bfd_target mach_o_le_vec; 724 extern const bfd_target mach_o_fat_vec; 725 extern const bfd_target maxqcoff_vec; 726 extern const bfd_target mcore_pe_big_vec; 727 extern const bfd_target mcore_pe_little_vec; 728 extern const bfd_target mcore_pei_big_vec; 729 extern const bfd_target mcore_pei_little_vec; 730 extern const bfd_target mipslpe_vec; 731 extern const bfd_target mipslpei_vec; 732 extern const bfd_target newsos3_vec; 733 extern const bfd_target nlm32_alpha_vec; 734 extern const bfd_target nlm32_i386_vec; 735 extern const bfd_target nlm32_powerpc_vec; 736 extern const bfd_target nlm32_sparc_vec; 737 extern const bfd_target oasys_vec; 738 extern const bfd_target or32coff_big_vec; 739 extern const bfd_target pc532machaout_vec; 740 extern const bfd_target pc532netbsd_vec; 741 extern const bfd_target pdp11_aout_vec; 742 extern const bfd_target pef_vec; 743 extern const bfd_target pef_xlib_vec; 744 extern const bfd_target pmac_xcoff_vec; 745 extern const bfd_target ppcboot_vec; 746 extern const bfd_target riscix_vec; 747 extern const bfd_target rs6000coff64_vec; 748 extern const bfd_target rs6000coff_vec; 749 extern const bfd_target shcoff_small_vec; 750 extern const bfd_target shcoff_vec; 751 extern const bfd_target shlcoff_small_vec; 752 extern const bfd_target shlcoff_vec; 753 extern const bfd_target shlpe_vec; 754 extern const bfd_target shlpei_vec; 755 extern const bfd_target som_vec; 756 extern const bfd_target sparccoff_vec; 757 extern const bfd_target sparcle_aout_vec; 758 extern const bfd_target sparclinux_vec; 759 extern const bfd_target sparclynx_aout_vec; 760 extern const bfd_target sparclynx_coff_vec; 761 extern const bfd_target sparcnetbsd_vec; 762 extern const bfd_target sunos_big_vec; 763 extern const bfd_target sym_vec; 764 extern const bfd_target tic30_aout_vec; 765 extern const bfd_target tic30_coff_vec; 766 extern const bfd_target tic4x_coff0_beh_vec; 767 extern const bfd_target tic4x_coff0_vec; 768 extern const bfd_target tic4x_coff1_beh_vec; 769 extern const bfd_target tic4x_coff1_vec; 770 extern const bfd_target tic4x_coff2_beh_vec; 771 extern const bfd_target tic4x_coff2_vec; 772 extern const bfd_target tic54x_coff0_beh_vec; 773 extern const bfd_target tic54x_coff0_vec; 774 extern const bfd_target tic54x_coff1_beh_vec; 775 extern const bfd_target tic54x_coff1_vec; 776 extern const bfd_target tic54x_coff2_beh_vec; 777 extern const bfd_target tic54x_coff2_vec; 778 extern const bfd_target tic80coff_vec; 779 extern const bfd_target vaxbsd_vec; 780 extern const bfd_target vaxnetbsd_vec; 781 extern const bfd_target vax1knetbsd_vec; 782 extern const bfd_target versados_vec; 783 extern const bfd_target vms_alpha_vec; 784 extern const bfd_target vms_vax_vec; 785 extern const bfd_target w65_vec; 786 extern const bfd_target we32kcoff_vec; 787 extern const bfd_target z80coff_vec; 788 extern const bfd_target z8kcoff_vec; 789 790 /* These are always included. */ 791 extern const bfd_target srec_vec; 792 extern const bfd_target symbolsrec_vec; 793 extern const bfd_target tekhex_vec; 794 extern const bfd_target binary_vec; 795 extern const bfd_target ihex_vec; 796 797 /* All of the xvecs for core files. */ 798 extern const bfd_target aix386_core_vec; 799 extern const bfd_target cisco_core_big_vec; 800 extern const bfd_target cisco_core_little_vec; 801 extern const bfd_target hppabsd_core_vec; 802 extern const bfd_target hpux_core_vec; 803 extern const bfd_target irix_core_vec; 804 extern const bfd_target netbsd_core_vec; 805 extern const bfd_target osf_core_vec; 806 extern const bfd_target ptrace_core_vec; 807 extern const bfd_target sco5_core_vec; 808 extern const bfd_target trad_core_vec; 809 810 extern const bfd_target bfd_elf32_am33lin_vec; 811 static const bfd_target * const _bfd_target_vector[] = { 812 813 #ifdef SELECT_VECS 814 815 SELECT_VECS, 816 817 #else /* not SELECT_VECS */ 818 819 #ifdef DEFAULT_VECTOR 820 &DEFAULT_VECTOR, 821 #endif 822 /* This list is alphabetized to make it easy to compare 823 with other vector lists -- the decls above and 824 the case statement in configure.in. 825 Vectors that don't compile on all systems, or aren't finished, 826 should have an entry here with #if 0 around it, to show that 827 it wasn't omitted by mistake. */ 828 &a_out_adobe_vec, 829 #ifdef BFD64 830 &aix5coff64_vec, 831 #endif 832 &aout0_big_vec, 833 #if 0 834 /* We have no way of distinguishing these from other a.out variants. */ 835 &aout_arm_big_vec, 836 &aout_arm_little_vec, 837 /* No one seems to use this. */ 838 &aout_mips_big_vec, 839 #endif 840 &aout_mips_little_vec, 841 #if 0 842 &apollocoff_vec, 843 #endif 844 &arm_epoc_pe_big_vec, 845 &arm_epoc_pe_little_vec, 846 &arm_epoc_pei_big_vec, 847 &arm_epoc_pei_little_vec, 848 &armcoff_big_vec, 849 &armcoff_little_vec, 850 &armnetbsd_vec, 851 &armpe_big_vec, 852 &armpe_little_vec, 853 &armpei_big_vec, 854 &armpei_little_vec, 855 &b_out_vec_big_host, 856 &b_out_vec_little_host, 857 &bfd_efi_app_ia32_vec, 858 &bfd_efi_app_x86_64_vec, 859 #ifdef BFD64 860 &bfd_efi_app_ia64_vec, 861 #endif 862 &bfd_elf32_avr_vec, 863 &bfd_elf32_bfin_vec, 864 &bfd_elf32_bfinfdpic_vec, 865 866 /* This, and other vectors, may not be used in any *.mt configuration. 867 But that does not mean they are unnecessary. If configured with 868 --enable-targets=all, objdump or gdb should be able to examine 869 the file even if we don't recognize the machine type. */ 870 &bfd_elf32_big_generic_vec, 871 &bfd_elf32_bigarc_vec, 872 &bfd_elf32_bigarm_vec, 873 &bfd_elf32_bigarm_symbian_vec, 874 &bfd_elf32_bigarm_vxworks_vec, 875 &bfd_elf32_bigmips_vec, 876 &bfd_elf32_bigmips_vxworks_vec, 877 &bfd_elf32_cr16c_vec, 878 &bfd_elf32_cris_vec, 879 &bfd_elf32_crx_vec, 880 &bfd_elf32_d10v_vec, 881 &bfd_elf32_d30v_vec, 882 &bfd_elf32_dlx_big_vec, 883 &bfd_elf32_fr30_vec, 884 &bfd_elf32_frv_vec, 885 &bfd_elf32_frvfdpic_vec, 886 &bfd_elf32_h8300_vec, 887 &bfd_elf32_hppa_linux_vec, 888 &bfd_elf32_hppa_nbsd_vec, 889 &bfd_elf32_hppa_vec, 890 &bfd_elf32_i370_vec, 891 &bfd_elf32_i386_freebsd_vec, 892 &bfd_elf32_i386_vxworks_vec, 893 &bfd_elf32_i386_vec, 894 &bfd_elf32_i860_little_vec, 895 &bfd_elf32_i860_vec, 896 &bfd_elf32_i960_vec, 897 #if 0 898 &bfd_elf32_ia64_big_vec, 899 #endif 900 #ifdef BFD64 901 &bfd_elf32_ia64_hpux_big_vec, 902 #endif 903 &bfd_elf32_ip2k_vec, 904 &bfd_elf32_iq2000_vec, 905 &bfd_elf32_little_generic_vec, 906 &bfd_elf32_littlearc_vec, 907 &bfd_elf32_littlearm_vec, 908 &bfd_elf32_littlearm_symbian_vec, 909 &bfd_elf32_littlearm_vxworks_vec, 910 &bfd_elf32_littlemips_vec, 911 &bfd_elf32_littlemips_vxworks_vec, 912 &bfd_elf32_m32c_vec, 913 &bfd_elf32_m32r_vec, 914 &bfd_elf32_m32rle_vec, 915 &bfd_elf32_m32rlin_vec, 916 &bfd_elf32_m32rlelin_vec, 917 &bfd_elf32_m68hc11_vec, 918 &bfd_elf32_m68hc12_vec, 919 &bfd_elf32_m68k_vec, 920 &bfd_elf32_m88k_vec, 921 &bfd_elf32_mcore_big_vec, 922 &bfd_elf32_mcore_little_vec, 923 &bfd_elf32_mn10200_vec, 924 &bfd_elf32_mn10300_vec, 925 &bfd_elf32_mt_vec, 926 &bfd_elf32_msp430_vec, 927 #ifdef BFD64 928 &bfd_elf32_nbigmips_vec, 929 &bfd_elf32_nlittlemips_vec, 930 &bfd_elf32_ntradbigmips_vec, 931 &bfd_elf32_ntradlittlemips_vec, 932 #endif 933 &bfd_elf32_openrisc_vec, 934 &bfd_elf32_or32_big_vec, 935 &bfd_elf32_pj_vec, 936 &bfd_elf32_pjl_vec, 937 &bfd_elf32_powerpc_vec, 938 &bfd_elf32_powerpc_vxworks_vec, 939 &bfd_elf32_powerpcle_vec, 940 &bfd_elf32_s390_vec, 941 &bfd_elf32_sh_vec, 942 &bfd_elf32_shblin_vec, 943 &bfd_elf32_shl_vec, 944 &bfd_elf32_shl_symbian_vec, 945 &bfd_elf32_shlin_vec, 946 &bfd_elf32_shlnbsd_vec, 947 &bfd_elf32_shlobsd_vec, 948 &bfd_elf32_shnbsd_vec, 949 &bfd_elf32_shobsd_vec, 950 #ifdef BFD64 951 &bfd_elf32_sh64_vec, 952 &bfd_elf32_sh64l_vec, 953 &bfd_elf32_sh64lnbsd_vec, 954 &bfd_elf32_sh64nbsd_vec, 955 &bfd_elf32_sh64lin_vec, 956 &bfd_elf32_sh64blin_vec, 957 #endif 958 &bfd_elf32_sparc_vec, 959 &bfd_elf32_sparc_vxworks_vec, 960 &bfd_elf32_tradbigmips_vec, 961 &bfd_elf32_tradlittlemips_vec, 962 &bfd_elf32_us_cris_vec, 963 &bfd_elf32_v850_vec, 964 &bfd_elf32_vax_vec, 965 &bfd_elf32_xc16x_vec, 966 &bfd_elf32_xstormy16_vec, 967 &bfd_elf32_xtensa_be_vec, 968 &bfd_elf32_xtensa_le_vec, 969 #ifdef BFD64 970 &bfd_elf64_alpha_freebsd_vec, 971 &bfd_elf64_alpha_vec, 972 &bfd_elf64_big_generic_vec, 973 &bfd_elf64_bigmips_vec, 974 &bfd_elf64_hppa_linux_vec, 975 &bfd_elf64_hppa_vec, 976 &bfd_elf64_ia64_big_vec, 977 &bfd_elf64_ia64_hpux_big_vec, 978 &bfd_elf64_ia64_little_vec, 979 &bfd_elf64_little_generic_vec, 980 &bfd_elf64_littlemips_vec, 981 &bfd_elf64_mmix_vec, 982 &bfd_elf64_powerpc_vec, 983 &bfd_elf64_powerpcle_vec, 984 &bfd_elf64_s390_vec, 985 &bfd_elf64_sh64_vec, 986 &bfd_elf64_sh64l_vec, 987 &bfd_elf64_sh64lnbsd_vec, 988 &bfd_elf64_sh64nbsd_vec, 989 &bfd_elf64_sh64lin_vec, 990 &bfd_elf64_sh64blin_vec, 991 &bfd_elf64_sparc_vec, 992 &bfd_elf64_tradbigmips_vec, 993 &bfd_elf64_tradlittlemips_vec, 994 &bfd_elf64_x86_64_vec, 995 &bfd_mmo_vec, 996 #endif 997 &bfd_powerpc_pe_vec, 998 &bfd_powerpc_pei_vec, 999 &bfd_powerpcle_pe_vec, 1000 &bfd_powerpcle_pei_vec, 1001 &cris_aout_vec, 1002 #ifdef BFD64 1003 &demo_64_vec, /* Only compiled if host has long-long support. */ 1004 #endif 1005 &ecoff_big_vec, 1006 &ecoff_biglittle_vec, 1007 &ecoff_little_vec, 1008 #ifdef BFD64 1009 &ecoffalpha_little_vec, 1010 #endif 1011 &go32coff_vec, 1012 &go32stubbedcoff_vec, 1013 &h8300coff_vec, 1014 &h8500coff_vec, 1015 #if 0 1016 /* Since a.out files lack decent magic numbers, no way to recognize 1017 which kind of a.out file it is. */ 1018 &host_aout_vec, 1019 /* Clashes with sunos_big_vec magic no. */ 1020 &hp300bsd_vec, 1021 #endif 1022 &hp300hpux_vec, 1023 &i386aout_vec, 1024 &i386bsd_vec, 1025 &i386coff_vec, 1026 #if 0 1027 &i386dynix_vec, 1028 #endif 1029 &i386freebsd_vec, 1030 #if 0 1031 /* Since a.out files lack decent magic numbers, no way to recognize 1032 which kind of a.out file it is. */ 1033 &i386linux_vec, 1034 #endif 1035 &i386lynx_aout_vec, 1036 &i386lynx_coff_vec, 1037 #if 0 1038 /* No distinguishing features for Mach 3 executables. */ 1039 &i386mach3_vec, 1040 #endif 1041 &i386msdos_vec, 1042 &i386netbsd_vec, 1043 &i386os9k_vec, 1044 &i386pe_vec, 1045 &i386pei_vec, 1046 &i860coff_vec, 1047 &icoff_big_vec, 1048 &icoff_little_vec, 1049 &ieee_vec, 1050 #if 0 1051 &m68k4knetbsd_vec, 1052 &m68kaux_coff_vec, 1053 #endif 1054 &m68kcoff_vec, 1055 &m68kcoffun_vec, 1056 #if 0 1057 /* Since a.out files lack decent magic numbers, no way to recognize 1058 which kind of a.out file it is. */ 1059 &m68klinux_vec, 1060 #endif 1061 &m68knetbsd_vec, 1062 &m68ksysvcoff_vec, 1063 &m88kbcs_vec, 1064 &m88kmach3_vec, 1065 &m88kopenbsd_vec, 1066 &mach_o_be_vec, 1067 &mach_o_le_vec, 1068 &mach_o_fat_vec, 1069 &maxqcoff_vec, 1070 &mcore_pe_big_vec, 1071 &mcore_pe_little_vec, 1072 &mcore_pei_big_vec, 1073 &mcore_pei_little_vec, 1074 &mipslpe_vec, 1075 &mipslpei_vec, 1076 &newsos3_vec, 1077 #ifdef BFD64 1078 &nlm32_alpha_vec, 1079 #endif 1080 &nlm32_i386_vec, 1081 &nlm32_powerpc_vec, 1082 &nlm32_sparc_vec, 1083 #if 0 1084 /* We have no oasys tools anymore, so we can't test any of this 1085 anymore. If you want to test the stuff yourself, go ahead... 1086 steve@cygnus.com 1087 Worse, since there is no magic number for archives, there 1088 can be annoying target mis-matches. */ 1089 &oasys_vec, 1090 #endif 1091 /* Entry for the OpenRISC family. */ 1092 &or32coff_big_vec, 1093 1094 &pc532machaout_vec, 1095 &pc532netbsd_vec, 1096 &pdp11_aout_vec, 1097 &pef_vec, 1098 &pef_xlib_vec, 1099 #if 0 1100 /* This has the same magic number as RS/6000. */ 1101 &pmac_xcoff_vec, 1102 #endif 1103 &ppcboot_vec, 1104 #if 0 1105 /* We have no way of distinguishing these from other a.out variants. */ 1106 &riscix_vec, 1107 #endif 1108 #ifdef BFD64 1109 &rs6000coff64_vec, 1110 #endif 1111 &rs6000coff_vec, 1112 &shcoff_small_vec, 1113 &shcoff_vec, 1114 &shlcoff_small_vec, 1115 &shlcoff_vec, 1116 &shlpe_vec, 1117 &shlpei_vec, 1118 #if defined (HOST_HPPAHPUX) || defined (HOST_HPPABSD) || defined (HOST_HPPAOSF) 1119 &som_vec, 1120 #endif 1121 &sparccoff_vec, 1122 &sparcle_aout_vec, 1123 &sparclinux_vec, 1124 &sparclynx_aout_vec, 1125 &sparclynx_coff_vec, 1126 &sparcnetbsd_vec, 1127 &sunos_big_vec, 1128 &sym_vec, 1129 &tic30_aout_vec, 1130 &tic30_coff_vec, 1131 &tic54x_coff0_beh_vec, 1132 &tic54x_coff0_vec, 1133 &tic54x_coff1_beh_vec, 1134 &tic54x_coff1_vec, 1135 &tic54x_coff2_beh_vec, 1136 &tic54x_coff2_vec, 1137 &tic80coff_vec, 1138 &vaxbsd_vec, 1139 &vaxnetbsd_vec, 1140 &vax1knetbsd_vec, 1141 &versados_vec, 1142 #ifdef BFD64 1143 &vms_alpha_vec, 1144 #endif 1145 &vms_vax_vec, 1146 &w65_vec, 1147 &we32kcoff_vec, 1148 &z80coff_vec, 1149 &z8kcoff_vec, 1150 &bfd_elf32_am33lin_vec, 1151 #endif /* not SELECT_VECS */ 1152 1153 /* Always support S-records, for convenience. */ 1154 &srec_vec, 1155 &symbolsrec_vec, 1156 /* And tekhex */ 1157 &tekhex_vec, 1158 /* Likewise for binary output. */ 1159 &binary_vec, 1160 /* Likewise for ihex. */ 1161 &ihex_vec, 1162 1163 /* Add any required traditional-core-file-handler. */ 1164 1165 #ifdef AIX386_CORE 1166 &aix386_core_vec, 1167 #endif 1168 #if 0 1169 /* We don't include cisco_core_*_vec. Although it has a magic number, 1170 the magic number isn't at the beginning of the file, and thus 1171 might spuriously match other kinds of files. */ 1172 &cisco_core_big_vec, 1173 &cisco_core_little_vec, 1174 #endif 1175 #ifdef HPPABSD_CORE 1176 &hppabsd_core_vec, 1177 #endif 1178 #ifdef HPUX_CORE 1179 &hpux_core_vec, 1180 #endif 1181 #ifdef IRIX_CORE 1182 &irix_core_vec, 1183 #endif 1184 #ifdef NETBSD_CORE 1185 &netbsd_core_vec, 1186 #endif 1187 #ifdef OSF_CORE 1188 &osf_core_vec, 1189 #endif 1190 #ifdef PTRACE_CORE 1191 &ptrace_core_vec, 1192 #endif 1193 #ifdef SCO5_CORE 1194 &sco5_core_vec, 1195 #endif 1196 #ifdef TRAD_CORE 1197 &trad_core_vec, 1198 #endif 1199 1200 NULL /* end of list marker */ 1201 }; 1202 const bfd_target * const *bfd_target_vector = _bfd_target_vector; 1203 1204 /* bfd_default_vector[0] contains either the address of the default vector, 1205 if there is one, or zero if there isn't. */ 1206 1207 const bfd_target *bfd_default_vector[] = { 1208 #ifdef DEFAULT_VECTOR 1209 &DEFAULT_VECTOR, 1210 #endif 1211 NULL 1212 }; 1213 1214 /* bfd_associated_vector[] contains the associated target vectors used 1215 to reduce the ambiguity in bfd_check_format_matches. */ 1216 1217 static const bfd_target *_bfd_associated_vector[] = { 1218 #ifdef ASSOCIATED_VECS 1219 ASSOCIATED_VECS, 1220 #endif 1221 NULL 1222 }; 1223 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector; 1224 1225 /* When there is an ambiguous match, bfd_check_format_matches puts the 1226 names of the matching targets in an array. This variable is the maximum 1227 number of entries that the array could possibly need. */ 1228 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector); 1229 1230 /* This array maps configuration triplets onto BFD vectors. */ 1231 1232 struct targmatch 1233 { 1234 /* The configuration triplet. */ 1235 const char *triplet; 1236 /* The BFD vector. If this is NULL, then the vector is found by 1237 searching forward for the next structure with a non NULL vector 1238 field. */ 1239 const bfd_target *vector; 1240 }; 1241 1242 /* targmatch.h is built by Makefile out of config.bfd. */ 1243 static const struct targmatch bfd_target_match[] = { 1244 #include "targmatch.h" 1245 { NULL, NULL } 1246 }; 1247 1248 /* Find a target vector, given a name or configuration triplet. */ 1249 1250 static const bfd_target * 1251 find_target (const char *name) 1252 { 1253 const bfd_target * const *target; 1254 const struct targmatch *match; 1255 1256 for (target = &bfd_target_vector[0]; *target != NULL; target++) 1257 if (strcmp (name, (*target)->name) == 0) 1258 return *target; 1259 1260 /* If we couldn't match on the exact name, try matching on the 1261 configuration triplet. FIXME: We should run the triplet through 1262 config.sub first, but that is hard. */ 1263 for (match = &bfd_target_match[0]; match->triplet != NULL; match++) 1264 { 1265 if (fnmatch (match->triplet, name, 0) == 0) 1266 { 1267 while (match->vector == NULL) 1268 ++match; 1269 return match->vector; 1270 break; 1271 } 1272 } 1273 1274 bfd_set_error (bfd_error_invalid_target); 1275 return NULL; 1276 } 1277 1278 /* 1279 FUNCTION 1280 bfd_set_default_target 1281 1282 SYNOPSIS 1283 bfd_boolean bfd_set_default_target (const char *name); 1284 1285 DESCRIPTION 1286 Set the default target vector to use when recognizing a BFD. 1287 This takes the name of the target, which may be a BFD target 1288 name or a configuration triplet. 1289 */ 1290 1291 bfd_boolean 1292 bfd_set_default_target (const char *name) 1293 { 1294 const bfd_target *target; 1295 1296 if (bfd_default_vector[0] != NULL 1297 && strcmp (name, bfd_default_vector[0]->name) == 0) 1298 return TRUE; 1299 1300 target = find_target (name); 1301 if (target == NULL) 1302 return FALSE; 1303 1304 bfd_default_vector[0] = target; 1305 return TRUE; 1306 } 1307 1308 /* 1309 FUNCTION 1310 bfd_find_target 1311 1312 SYNOPSIS 1313 const bfd_target *bfd_find_target (const char *target_name, bfd *abfd); 1314 1315 DESCRIPTION 1316 Return a pointer to the transfer vector for the object target 1317 named @var{target_name}. If @var{target_name} is <<NULL>>, choose the 1318 one in the environment variable <<GNUTARGET>>; if that is null or not 1319 defined, then choose the first entry in the target list. 1320 Passing in the string "default" or setting the environment 1321 variable to "default" will cause the first entry in the target 1322 list to be returned, and "target_defaulted" will be set in the 1323 BFD. This causes <<bfd_check_format>> to loop over all the 1324 targets to find the one that matches the file being read. 1325 */ 1326 1327 const bfd_target * 1328 bfd_find_target (const char *target_name, bfd *abfd) 1329 { 1330 const char *targname; 1331 const bfd_target *target; 1332 1333 if (target_name != NULL) 1334 targname = target_name; 1335 else 1336 targname = getenv ("GNUTARGET"); 1337 1338 /* This is safe; the vector cannot be null. */ 1339 if (targname == NULL || strcmp (targname, "default") == 0) 1340 { 1341 abfd->target_defaulted = TRUE; 1342 if (bfd_default_vector[0] != NULL) 1343 abfd->xvec = bfd_default_vector[0]; 1344 else 1345 abfd->xvec = bfd_target_vector[0]; 1346 return abfd->xvec; 1347 } 1348 1349 abfd->target_defaulted = FALSE; 1350 1351 target = find_target (targname); 1352 if (target == NULL) 1353 return NULL; 1354 1355 abfd->xvec = target; 1356 return target; 1357 } 1358 1359 /* 1360 FUNCTION 1361 bfd_target_list 1362 1363 SYNOPSIS 1364 const char ** bfd_target_list (void); 1365 1366 DESCRIPTION 1367 Return a freshly malloced NULL-terminated 1368 vector of the names of all the valid BFD targets. Do not 1369 modify the names. 1370 1371 */ 1372 1373 const char ** 1374 bfd_target_list (void) 1375 { 1376 int vec_length = 0; 1377 bfd_size_type amt; 1378 #if defined (HOST_HPPAHPUX) && ! defined (__STDC__) 1379 /* The native compiler on the HP9000/700 has a bug which causes it 1380 to loop endlessly when compiling this file. This avoids it. */ 1381 volatile 1382 #endif 1383 const bfd_target * const *target; 1384 const char **name_list, **name_ptr; 1385 1386 for (target = &bfd_target_vector[0]; *target != NULL; target++) 1387 vec_length++; 1388 1389 amt = (vec_length + 1) * sizeof (char **); 1390 name_ptr = name_list = bfd_malloc (amt); 1391 1392 if (name_list == NULL) 1393 return NULL; 1394 1395 for (target = &bfd_target_vector[0]; *target != NULL; target++) 1396 if (target == &bfd_target_vector[0] 1397 || *target != bfd_target_vector[0]) 1398 *name_ptr++ = (*target)->name; 1399 1400 *name_ptr = NULL; 1401 return name_list; 1402 } 1403 1404 /* 1405 FUNCTION 1406 bfd_seach_for_target 1407 1408 SYNOPSIS 1409 const bfd_target *bfd_search_for_target 1410 (int (*search_func) (const bfd_target *, void *), 1411 void *); 1412 1413 DESCRIPTION 1414 Return a pointer to the first transfer vector in the list of 1415 transfer vectors maintained by BFD that produces a non-zero 1416 result when passed to the function @var{search_func}. The 1417 parameter @var{data} is passed, unexamined, to the search 1418 function. 1419 */ 1420 1421 const bfd_target * 1422 bfd_search_for_target (int (*search_func) (const bfd_target *, void *), 1423 void *data) 1424 { 1425 const bfd_target * const *target; 1426 1427 for (target = bfd_target_vector; *target != NULL; target ++) 1428 if (search_func (*target, data)) 1429 return *target; 1430 1431 return NULL; 1432 } 1433