targets.c revision 1.8
1 /* Generic target-file-type support for the BFD library. 2 Copyright (C) 1990-2019 Free Software Foundation, Inc. 3 Written by Cygnus Support. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 #include "sysdep.h" 23 #include "bfd.h" 24 #include "libbfd.h" 25 #include "fnmatch.h" 26 27 /* 28 It's okay to see some: 29 #if 0 30 directives in this source file, as targets.c uses them to exclude 31 certain BFD vectors. This comment is specially formatted to catch 32 users who grep for ^#if 0, so please keep it this way! 33 */ 34 35 /* 36 SECTION 37 Targets 38 39 DESCRIPTION 40 Each port of BFD to a different machine requires the creation 41 of a target back end. All the back end provides to the root 42 part of BFD is a structure containing pointers to functions 43 which perform certain low level operations on files. BFD 44 translates the applications's requests through a pointer into 45 calls to the back end routines. 46 47 When a file is opened with <<bfd_openr>>, its format and 48 target are unknown. BFD uses various mechanisms to determine 49 how to interpret the file. The operations performed are: 50 51 o Create a BFD by calling the internal routine 52 <<_bfd_new_bfd>>, then call <<bfd_find_target>> with the 53 target string supplied to <<bfd_openr>> and the new BFD pointer. 54 55 o If a null target string was provided to <<bfd_find_target>>, 56 look up the environment variable <<GNUTARGET>> and use 57 that as the target string. 58 59 o If the target string is still <<NULL>>, or the target string is 60 <<default>>, then use the first item in the target vector 61 as the target type, and set <<target_defaulted>> in the BFD to 62 cause <<bfd_check_format>> to loop through all the targets. 63 @xref{bfd_target}. @xref{Formats}. 64 65 o Otherwise, inspect the elements in the target vector 66 one by one, until a match on target name is found. When found, 67 use it. 68 69 o Otherwise return the error <<bfd_error_invalid_target>> to 70 <<bfd_openr>>. 71 72 o <<bfd_openr>> attempts to open the file using 73 <<bfd_open_file>>, and returns the BFD. 74 75 Once the BFD has been opened and the target selected, the file 76 format may be determined. This is done by calling 77 <<bfd_check_format>> on the BFD with a suggested format. 78 If <<target_defaulted>> has been set, each possible target 79 type is tried to see if it recognizes the specified format. 80 <<bfd_check_format>> returns <<TRUE>> when the caller guesses right. 81 @menu 82 @* bfd_target:: 83 @end menu 84 */ 85 86 /* 87 88 INODE 89 bfd_target, , Targets, Targets 90 DOCDD 91 SUBSECTION 92 bfd_target 93 94 DESCRIPTION 95 This structure contains everything that BFD knows about a 96 target. It includes things like its byte order, name, and which 97 routines to call to do various operations. 98 99 Every BFD points to a target structure with its <<xvec>> 100 member. 101 102 The macros below are used to dispatch to functions through the 103 <<bfd_target>> vector. They are used in a number of macros further 104 down in @file{bfd.h}, and are also used when calling various 105 routines by hand inside the BFD implementation. The @var{arglist} 106 argument must be parenthesized; it contains all the arguments 107 to the called function. 108 109 They make the documentation (more) unpleasant to read, so if 110 someone wants to fix this and not break the above, please do. 111 112 .#define BFD_SEND(bfd, message, arglist) \ 113 . ((*((bfd)->xvec->message)) arglist) 114 . 115 .#ifdef DEBUG_BFD_SEND 116 .#undef BFD_SEND 117 .#define BFD_SEND(bfd, message, arglist) \ 118 . (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \ 119 . ((*((bfd)->xvec->message)) arglist) : \ 120 . (bfd_assert (__FILE__,__LINE__), NULL)) 121 .#endif 122 123 For operations which index on the BFD format: 124 125 .#define BFD_SEND_FMT(bfd, message, arglist) \ 126 . (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) 127 . 128 .#ifdef DEBUG_BFD_SEND 129 .#undef BFD_SEND_FMT 130 .#define BFD_SEND_FMT(bfd, message, arglist) \ 131 . (((bfd) && (bfd)->xvec && (bfd)->xvec->message) ? \ 132 . (((bfd)->xvec->message[(int) ((bfd)->format)]) arglist) : \ 133 . (bfd_assert (__FILE__,__LINE__), NULL)) 134 .#endif 135 . 136 This is the structure which defines the type of BFD this is. The 137 <<xvec>> member of the struct <<bfd>> itself points here. Each 138 module that implements access to a different target under BFD, 139 defines one of these. 140 141 FIXME, these names should be rationalised with the names of 142 the entry points which call them. Too bad we can't have one 143 macro to define them both! 144 145 .enum bfd_flavour 146 .{ 147 . {* N.B. Update bfd_flavour_name if you change this. *} 148 . bfd_target_unknown_flavour, 149 . bfd_target_aout_flavour, 150 . bfd_target_coff_flavour, 151 . bfd_target_ecoff_flavour, 152 . bfd_target_xcoff_flavour, 153 . bfd_target_elf_flavour, 154 . bfd_target_tekhex_flavour, 155 . bfd_target_srec_flavour, 156 . bfd_target_verilog_flavour, 157 . bfd_target_ihex_flavour, 158 . bfd_target_som_flavour, 159 . bfd_target_os9k_flavour, 160 . bfd_target_versados_flavour, 161 . bfd_target_msdos_flavour, 162 . bfd_target_ovax_flavour, 163 . bfd_target_evax_flavour, 164 . bfd_target_mmo_flavour, 165 . bfd_target_mach_o_flavour, 166 . bfd_target_pef_flavour, 167 . bfd_target_pef_xlib_flavour, 168 . bfd_target_sym_flavour 169 .}; 170 . 171 .enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN }; 172 . 173 .{* Forward declaration. *} 174 .typedef struct bfd_link_info _bfd_link_info; 175 . 176 .{* Forward declaration. *} 177 .typedef struct flag_info flag_info; 178 . 179 .typedef struct bfd_target 180 .{ 181 . {* Identifies the kind of target, e.g., SunOS4, Ultrix, etc. *} 182 . char *name; 183 . 184 . {* The "flavour" of a back end is a general indication about 185 . the contents of a file. *} 186 . enum bfd_flavour flavour; 187 . 188 . {* The order of bytes within the data area of a file. *} 189 . enum bfd_endian byteorder; 190 . 191 . {* The order of bytes within the header parts of a file. *} 192 . enum bfd_endian header_byteorder; 193 . 194 . {* A mask of all the flags which an executable may have set - 195 . from the set <<BFD_NO_FLAGS>>, <<HAS_RELOC>>, ...<<D_PAGED>>. *} 196 . flagword object_flags; 197 . 198 . {* A mask of all the flags which a section may have set - from 199 . the set <<SEC_NO_FLAGS>>, <<SEC_ALLOC>>, ...<<SET_NEVER_LOAD>>. *} 200 . flagword section_flags; 201 . 202 . {* The character normally found at the front of a symbol. 203 . (if any), perhaps `_'. *} 204 . char symbol_leading_char; 205 . 206 . {* The pad character for file names within an archive header. *} 207 . char ar_pad_char; 208 . 209 . {* The maximum number of characters in an archive header. *} 210 . unsigned char ar_max_namelen; 211 . 212 . {* How well this target matches, used to select between various 213 . possible targets when more than one target matches. *} 214 . unsigned char match_priority; 215 . 216 . {* Entries for byte swapping for data. These are different from the 217 . other entry points, since they don't take a BFD as the first argument. 218 . Certain other handlers could do the same. *} 219 . bfd_uint64_t (*bfd_getx64) (const void *); 220 . bfd_int64_t (*bfd_getx_signed_64) (const void *); 221 . void (*bfd_putx64) (bfd_uint64_t, void *); 222 . bfd_vma (*bfd_getx32) (const void *); 223 . bfd_signed_vma (*bfd_getx_signed_32) (const void *); 224 . void (*bfd_putx32) (bfd_vma, void *); 225 . bfd_vma (*bfd_getx16) (const void *); 226 . bfd_signed_vma (*bfd_getx_signed_16) (const void *); 227 . void (*bfd_putx16) (bfd_vma, void *); 228 . 229 . {* Byte swapping for the headers. *} 230 . bfd_uint64_t (*bfd_h_getx64) (const void *); 231 . bfd_int64_t (*bfd_h_getx_signed_64) (const void *); 232 . void (*bfd_h_putx64) (bfd_uint64_t, void *); 233 . bfd_vma (*bfd_h_getx32) (const void *); 234 . bfd_signed_vma (*bfd_h_getx_signed_32) (const void *); 235 . void (*bfd_h_putx32) (bfd_vma, void *); 236 . bfd_vma (*bfd_h_getx16) (const void *); 237 . bfd_signed_vma (*bfd_h_getx_signed_16) (const void *); 238 . void (*bfd_h_putx16) (bfd_vma, void *); 239 . 240 . {* Format dependent routines: these are vectors of entry points 241 . within the target vector structure, one for each format to check. *} 242 . 243 . {* Check the format of a file being read. Return a <<bfd_target *>> or zero. *} 244 . const struct bfd_target * 245 . (*_bfd_check_format[bfd_type_end]) (bfd *); 246 . 247 . {* Set the format of a file being written. *} 248 . bfd_boolean (*_bfd_set_format[bfd_type_end]) (bfd *); 249 . 250 . {* Write cached information into a file being written, at <<bfd_close>>. *} 251 . bfd_boolean (*_bfd_write_contents[bfd_type_end]) (bfd *); 252 . 253 The general target vector. These vectors are initialized using the 254 BFD_JUMP_TABLE macros. 255 . 256 . {* Generic entry points. *} 257 .#define BFD_JUMP_TABLE_GENERIC(NAME) \ 258 . NAME##_close_and_cleanup, \ 259 . NAME##_bfd_free_cached_info, \ 260 . NAME##_new_section_hook, \ 261 . NAME##_get_section_contents, \ 262 . NAME##_get_section_contents_in_window 263 . 264 . {* Called when the BFD is being closed to do any necessary cleanup. *} 265 . bfd_boolean (*_close_and_cleanup) (bfd *); 266 . {* Ask the BFD to free all cached information. *} 267 . bfd_boolean (*_bfd_free_cached_info) (bfd *); 268 . {* Called when a new section is created. *} 269 . bfd_boolean (*_new_section_hook) (bfd *, sec_ptr); 270 . {* Read the contents of a section. *} 271 . bfd_boolean (*_bfd_get_section_contents) (bfd *, sec_ptr, void *, file_ptr, 272 . bfd_size_type); 273 . bfd_boolean (*_bfd_get_section_contents_in_window) (bfd *, sec_ptr, 274 . bfd_window *, file_ptr, 275 . bfd_size_type); 276 . 277 . {* Entry points to copy private data. *} 278 .#define BFD_JUMP_TABLE_COPY(NAME) \ 279 . NAME##_bfd_copy_private_bfd_data, \ 280 . NAME##_bfd_merge_private_bfd_data, \ 281 . _bfd_generic_init_private_section_data, \ 282 . NAME##_bfd_copy_private_section_data, \ 283 . NAME##_bfd_copy_private_symbol_data, \ 284 . NAME##_bfd_copy_private_header_data, \ 285 . NAME##_bfd_set_private_flags, \ 286 . NAME##_bfd_print_private_bfd_data 287 . 288 . {* Called to copy BFD general private data from one object file 289 . to another. *} 290 . bfd_boolean (*_bfd_copy_private_bfd_data) (bfd *, bfd *); 291 . {* Called to merge BFD general private data from one object file 292 . to a common output file when linking. *} 293 . bfd_boolean (*_bfd_merge_private_bfd_data) (bfd *, struct bfd_link_info *); 294 . {* Called to initialize BFD private section data from one object file 295 . to another. *} 296 .#define bfd_init_private_section_data(ibfd, isec, obfd, osec, link_info) \ 297 . BFD_SEND (obfd, _bfd_init_private_section_data, \ 298 . (ibfd, isec, obfd, osec, link_info)) 299 . bfd_boolean (*_bfd_init_private_section_data) (bfd *, sec_ptr, bfd *, 300 . sec_ptr, 301 . struct bfd_link_info *); 302 . {* Called to copy BFD private section data from one object file 303 . to another. *} 304 . bfd_boolean (*_bfd_copy_private_section_data) (bfd *, sec_ptr, bfd *, 305 . sec_ptr); 306 . {* Called to copy BFD private symbol data from one symbol 307 . to another. *} 308 . bfd_boolean (*_bfd_copy_private_symbol_data) (bfd *, asymbol *, bfd *, 309 . asymbol *); 310 . {* Called to copy BFD private header data from one object file 311 . to another. *} 312 . bfd_boolean (*_bfd_copy_private_header_data) (bfd *, bfd *); 313 . {* Called to set private backend flags. *} 314 . bfd_boolean (*_bfd_set_private_flags) (bfd *, flagword); 315 . 316 . {* Called to print private BFD data. *} 317 . bfd_boolean (*_bfd_print_private_bfd_data) (bfd *, void *); 318 . 319 . {* Core file entry points. *} 320 .#define BFD_JUMP_TABLE_CORE(NAME) \ 321 . NAME##_core_file_failing_command, \ 322 . NAME##_core_file_failing_signal, \ 323 . NAME##_core_file_matches_executable_p, \ 324 . NAME##_core_file_pid 325 . 326 . char * (*_core_file_failing_command) (bfd *); 327 . int (*_core_file_failing_signal) (bfd *); 328 . bfd_boolean (*_core_file_matches_executable_p) (bfd *, bfd *); 329 . int (*_core_file_pid) (bfd *); 330 . 331 . {* Archive entry points. *} 332 .#define BFD_JUMP_TABLE_ARCHIVE(NAME) \ 333 . NAME##_slurp_armap, \ 334 . NAME##_slurp_extended_name_table, \ 335 . NAME##_construct_extended_name_table, \ 336 . NAME##_truncate_arname, \ 337 . NAME##_write_armap, \ 338 . NAME##_read_ar_hdr, \ 339 . NAME##_write_ar_hdr, \ 340 . NAME##_openr_next_archived_file, \ 341 . NAME##_get_elt_at_index, \ 342 . NAME##_generic_stat_arch_elt, \ 343 . NAME##_update_armap_timestamp 344 . 345 . bfd_boolean (*_bfd_slurp_armap) (bfd *); 346 . bfd_boolean (*_bfd_slurp_extended_name_table) (bfd *); 347 . bfd_boolean (*_bfd_construct_extended_name_table) (bfd *, char **, 348 . bfd_size_type *, 349 . const char **); 350 . void (*_bfd_truncate_arname) (bfd *, const char *, char *); 351 . bfd_boolean (*write_armap) (bfd *, unsigned int, struct orl *, 352 . unsigned int, int); 353 . void * (*_bfd_read_ar_hdr_fn) (bfd *); 354 . bfd_boolean (*_bfd_write_ar_hdr_fn) (bfd *, bfd *); 355 . bfd * (*openr_next_archived_file) (bfd *, bfd *); 356 .#define bfd_get_elt_at_index(b,i) \ 357 . BFD_SEND (b, _bfd_get_elt_at_index, (b,i)) 358 . bfd * (*_bfd_get_elt_at_index) (bfd *, symindex); 359 . int (*_bfd_stat_arch_elt) (bfd *, struct stat *); 360 . bfd_boolean (*_bfd_update_armap_timestamp) (bfd *); 361 . 362 . {* Entry points used for symbols. *} 363 .#define BFD_JUMP_TABLE_SYMBOLS(NAME) \ 364 . NAME##_get_symtab_upper_bound, \ 365 . NAME##_canonicalize_symtab, \ 366 . NAME##_make_empty_symbol, \ 367 . NAME##_print_symbol, \ 368 . NAME##_get_symbol_info, \ 369 . NAME##_get_symbol_version_string, \ 370 . NAME##_bfd_is_local_label_name, \ 371 . NAME##_bfd_is_target_special_symbol, \ 372 . NAME##_get_lineno, \ 373 . NAME##_find_nearest_line, \ 374 . NAME##_find_line, \ 375 . NAME##_find_inliner_info, \ 376 . NAME##_bfd_make_debug_symbol, \ 377 . NAME##_read_minisymbols, \ 378 . NAME##_minisymbol_to_symbol 379 . 380 . long (*_bfd_get_symtab_upper_bound) (bfd *); 381 . long (*_bfd_canonicalize_symtab) (bfd *, struct bfd_symbol **); 382 . struct bfd_symbol * 383 . (*_bfd_make_empty_symbol) (bfd *); 384 . void (*_bfd_print_symbol) (bfd *, void *, struct bfd_symbol *, 385 . bfd_print_symbol_type); 386 .#define bfd_print_symbol(b,p,s,e) \ 387 . BFD_SEND (b, _bfd_print_symbol, (b,p,s,e)) 388 . void (*_bfd_get_symbol_info) (bfd *, struct bfd_symbol *, 389 . symbol_info *); 390 .#define bfd_get_symbol_info(b,p,e) \ 391 . BFD_SEND (b, _bfd_get_symbol_info, (b,p,e)) 392 . const char *(*_bfd_get_symbol_version_string) (bfd *, struct bfd_symbol *, 393 . bfd_boolean *); 394 .#define bfd_get_symbol_version_string(b,s,h) \ 395 . BFD_SEND (b, _bfd_get_symbol_version_string, (b,s,h)) 396 . bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *); 397 . bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *); 398 . alent * (*_get_lineno) (bfd *, struct bfd_symbol *); 399 . bfd_boolean (*_bfd_find_nearest_line) (bfd *, struct bfd_symbol **, 400 . struct bfd_section *, bfd_vma, 401 . const char **, const char **, 402 . unsigned int *, unsigned int *); 403 . bfd_boolean (*_bfd_find_line) (bfd *, struct bfd_symbol **, 404 . struct bfd_symbol *, const char **, 405 . unsigned int *); 406 . bfd_boolean (*_bfd_find_inliner_info) 407 . (bfd *, const char **, const char **, unsigned int *); 408 . {* Back-door to allow format-aware applications to create debug symbols 409 . while using BFD for everything else. Currently used by the assembler 410 . when creating COFF files. *} 411 . asymbol * (*_bfd_make_debug_symbol) (bfd *, void *, unsigned long size); 412 .#define bfd_read_minisymbols(b, d, m, s) \ 413 . BFD_SEND (b, _read_minisymbols, (b, d, m, s)) 414 . long (*_read_minisymbols) (bfd *, bfd_boolean, void **, 415 . unsigned int *); 416 .#define bfd_minisymbol_to_symbol(b, d, m, f) \ 417 . BFD_SEND (b, _minisymbol_to_symbol, (b, d, m, f)) 418 . asymbol * (*_minisymbol_to_symbol) (bfd *, bfd_boolean, const void *, 419 . asymbol *); 420 . 421 . {* Routines for relocs. *} 422 .#define BFD_JUMP_TABLE_RELOCS(NAME) \ 423 . NAME##_get_reloc_upper_bound, \ 424 . NAME##_canonicalize_reloc, \ 425 . NAME##_set_reloc, \ 426 . NAME##_bfd_reloc_type_lookup, \ 427 . NAME##_bfd_reloc_name_lookup 428 . 429 . long (*_get_reloc_upper_bound) (bfd *, sec_ptr); 430 . long (*_bfd_canonicalize_reloc) (bfd *, sec_ptr, arelent **, 431 . struct bfd_symbol **); 432 . void (*_bfd_set_reloc) (bfd *, sec_ptr, arelent **, unsigned int); 433 . {* See documentation on reloc types. *} 434 . reloc_howto_type * 435 . (*reloc_type_lookup) (bfd *, bfd_reloc_code_real_type); 436 . reloc_howto_type * 437 . (*reloc_name_lookup) (bfd *, const char *); 438 . 439 . {* Routines used when writing an object file. *} 440 .#define BFD_JUMP_TABLE_WRITE(NAME) \ 441 . NAME##_set_arch_mach, \ 442 . NAME##_set_section_contents 443 . 444 . bfd_boolean (*_bfd_set_arch_mach) (bfd *, enum bfd_architecture, 445 . unsigned long); 446 . bfd_boolean (*_bfd_set_section_contents) (bfd *, sec_ptr, const void *, 447 . file_ptr, bfd_size_type); 448 . 449 . {* Routines used by the linker. *} 450 .#define BFD_JUMP_TABLE_LINK(NAME) \ 451 . NAME##_sizeof_headers, \ 452 . NAME##_bfd_get_relocated_section_contents, \ 453 . NAME##_bfd_relax_section, \ 454 . NAME##_bfd_link_hash_table_create, \ 455 . NAME##_bfd_link_add_symbols, \ 456 . NAME##_bfd_link_just_syms, \ 457 . NAME##_bfd_copy_link_hash_symbol_type, \ 458 . NAME##_bfd_final_link, \ 459 . NAME##_bfd_link_split_section, \ 460 . NAME##_bfd_link_check_relocs, \ 461 . NAME##_bfd_gc_sections, \ 462 . NAME##_bfd_lookup_section_flags, \ 463 . NAME##_bfd_merge_sections, \ 464 . NAME##_bfd_is_group_section, \ 465 . NAME##_bfd_discard_group, \ 466 . NAME##_section_already_linked, \ 467 . NAME##_bfd_define_common_symbol, \ 468 . NAME##_bfd_link_hide_symbol, \ 469 . NAME##_bfd_define_start_stop 470 . 471 . int (*_bfd_sizeof_headers) (bfd *, struct bfd_link_info *); 472 . bfd_byte * (*_bfd_get_relocated_section_contents) (bfd *, 473 . struct bfd_link_info *, 474 . struct bfd_link_order *, 475 . bfd_byte *, bfd_boolean, 476 . struct bfd_symbol **); 477 . 478 . bfd_boolean (*_bfd_relax_section) (bfd *, struct bfd_section *, 479 . struct bfd_link_info *, bfd_boolean *); 480 . 481 . {* Create a hash table for the linker. Different backends store 482 . different information in this table. *} 483 . struct bfd_link_hash_table * 484 . (*_bfd_link_hash_table_create) (bfd *); 485 . 486 . {* Add symbols from this object file into the hash table. *} 487 . bfd_boolean (*_bfd_link_add_symbols) (bfd *, struct bfd_link_info *); 488 . 489 . {* Indicate that we are only retrieving symbol values from this section. *} 490 . void (*_bfd_link_just_syms) (asection *, struct bfd_link_info *); 491 . 492 . {* Copy the symbol type and other attributes for a linker script 493 . assignment of one symbol to another. *} 494 .#define bfd_copy_link_hash_symbol_type(b, t, f) \ 495 . BFD_SEND (b, _bfd_copy_link_hash_symbol_type, (b, t, f)) 496 . void (*_bfd_copy_link_hash_symbol_type) (bfd *, 497 . struct bfd_link_hash_entry *, 498 . struct bfd_link_hash_entry *); 499 . 500 . {* Do a link based on the link_order structures attached to each 501 . section of the BFD. *} 502 . bfd_boolean (*_bfd_final_link) (bfd *, struct bfd_link_info *); 503 . 504 . {* Should this section be split up into smaller pieces during linking. *} 505 . bfd_boolean (*_bfd_link_split_section) (bfd *, struct bfd_section *); 506 . 507 . {* Check the relocations in the bfd for validity. *} 508 . bfd_boolean (* _bfd_link_check_relocs)(bfd *, struct bfd_link_info *); 509 . 510 . {* Remove sections that are not referenced from the output. *} 511 . bfd_boolean (*_bfd_gc_sections) (bfd *, struct bfd_link_info *); 512 . 513 . {* Sets the bitmask of allowed and disallowed section flags. *} 514 . bfd_boolean (*_bfd_lookup_section_flags) (struct bfd_link_info *, 515 . struct flag_info *, asection *); 516 . 517 . {* Attempt to merge SEC_MERGE sections. *} 518 . bfd_boolean (*_bfd_merge_sections) (bfd *, struct bfd_link_info *); 519 . 520 . {* Is this section a member of a group? *} 521 . bfd_boolean (*_bfd_is_group_section) (bfd *, const struct bfd_section *); 522 . 523 . {* Discard members of a group. *} 524 . bfd_boolean (*_bfd_discard_group) (bfd *, struct bfd_section *); 525 . 526 . {* Check if SEC has been already linked during a reloceatable or 527 . final link. *} 528 . bfd_boolean (*_section_already_linked) (bfd *, asection *, 529 . struct bfd_link_info *); 530 . 531 . {* Define a common symbol. *} 532 . bfd_boolean (*_bfd_define_common_symbol) (bfd *, struct bfd_link_info *, 533 . struct bfd_link_hash_entry *); 534 . 535 . {* Hide a symbol. *} 536 . void (*_bfd_link_hide_symbol) (bfd *, struct bfd_link_info *, 537 . struct bfd_link_hash_entry *); 538 . 539 . {* Define a __start, __stop, .startof. or .sizeof. symbol. *} 540 . struct bfd_link_hash_entry * 541 . (*_bfd_define_start_stop) (struct bfd_link_info *, const char *, 542 . asection *); 543 . 544 . {* Routines to handle dynamic symbols and relocs. *} 545 .#define BFD_JUMP_TABLE_DYNAMIC(NAME) \ 546 . NAME##_get_dynamic_symtab_upper_bound, \ 547 . NAME##_canonicalize_dynamic_symtab, \ 548 . NAME##_get_synthetic_symtab, \ 549 . NAME##_get_dynamic_reloc_upper_bound, \ 550 . NAME##_canonicalize_dynamic_reloc 551 . 552 . {* Get the amount of memory required to hold the dynamic symbols. *} 553 . long (*_bfd_get_dynamic_symtab_upper_bound) (bfd *); 554 . {* Read in the dynamic symbols. *} 555 . long (*_bfd_canonicalize_dynamic_symtab) (bfd *, struct bfd_symbol **); 556 . {* Create synthetized symbols. *} 557 . long (*_bfd_get_synthetic_symtab) (bfd *, long, struct bfd_symbol **, 558 . long, struct bfd_symbol **, 559 . struct bfd_symbol **); 560 . {* Get the amount of memory required to hold the dynamic relocs. *} 561 . long (*_bfd_get_dynamic_reloc_upper_bound) (bfd *); 562 . {* Read in the dynamic relocs. *} 563 . long (*_bfd_canonicalize_dynamic_reloc) (bfd *, arelent **, 564 . struct bfd_symbol **); 565 . 566 567 A pointer to an alternative bfd_target in case the current one is not 568 satisfactory. This can happen when the target cpu supports both big 569 and little endian code, and target chosen by the linker has the wrong 570 endianness. The function open_output() in ld/ldlang.c uses this field 571 to find an alternative output format that is suitable. 572 573 . {* Opposite endian version of this target. *} 574 . const struct bfd_target *alternative_target; 575 . 576 577 . {* Data for use by back-end routines, which isn't 578 . generic enough to belong in this structure. *} 579 . const void *backend_data; 580 . 581 .} bfd_target; 582 . 583 */ 584 585 /* All known xvecs (even those that don't compile on all systems). 586 Alphabetized for easy reference. 587 They are listed a second time below, since 588 we can't intermix extern's and initializers. */ 589 extern const bfd_target aarch64_elf32_be_vec; 590 extern const bfd_target aarch64_elf32_le_vec; 591 extern const bfd_target aarch64_elf64_be_vec; 592 extern const bfd_target aarch64_elf64_be_cloudabi_vec; 593 extern const bfd_target aarch64_elf64_le_vec; 594 extern const bfd_target aarch64_elf64_le_cloudabi_vec; 595 extern const bfd_target aarch64_mach_o_vec; 596 extern const bfd_target alpha_ecoff_le_vec; 597 extern const bfd_target alpha_elf64_vec; 598 extern const bfd_target alpha_elf64_fbsd_vec; 599 extern const bfd_target alpha_vms_vec; 600 extern const bfd_target alpha_vms_lib_txt_vec; 601 extern const bfd_target am33_elf32_linux_vec; 602 extern const bfd_target aout_vec; 603 extern const bfd_target arc_elf32_be_vec; 604 extern const bfd_target arc_elf32_le_vec; 605 extern const bfd_target arm_elf32_be_vec; 606 extern const bfd_target arm_elf32_le_vec; 607 extern const bfd_target arm_elf32_fdpic_be_vec; 608 extern const bfd_target arm_elf32_fdpic_le_vec; 609 extern const bfd_target arm_elf32_nacl_be_vec; 610 extern const bfd_target arm_elf32_nacl_le_vec; 611 extern const bfd_target arm_elf32_symbian_be_vec; 612 extern const bfd_target arm_elf32_symbian_le_vec; 613 extern const bfd_target arm_elf32_vxworks_be_vec; 614 extern const bfd_target arm_elf32_vxworks_le_vec; 615 extern const bfd_target arm_mach_o_vec; 616 extern const bfd_target arm_pe_be_vec; 617 extern const bfd_target arm_pe_le_vec; 618 extern const bfd_target arm_pe_wince_be_vec; 619 extern const bfd_target arm_pe_wince_le_vec; 620 extern const bfd_target arm_pei_be_vec; 621 extern const bfd_target arm_pei_le_vec; 622 extern const bfd_target arm_pei_wince_be_vec; 623 extern const bfd_target arm_pei_wince_le_vec; 624 extern const bfd_target avr_elf32_vec; 625 extern const bfd_target bfin_elf32_vec; 626 extern const bfd_target bfin_elf32_fdpic_vec; 627 extern const bfd_target cr16_elf32_vec; 628 extern const bfd_target cr16c_elf32_vec; 629 extern const bfd_target cris_aout_vec; 630 extern const bfd_target cris_elf32_vec; 631 extern const bfd_target cris_elf32_us_vec; 632 extern const bfd_target crx_elf32_vec; 633 extern const bfd_target csky_elf32_be_vec; 634 extern const bfd_target csky_elf32_le_vec; 635 extern const bfd_target d10v_elf32_vec; 636 extern const bfd_target d30v_elf32_vec; 637 extern const bfd_target dlx_elf32_be_vec; 638 extern const bfd_target elf32_be_vec; 639 extern const bfd_target elf32_le_vec; 640 extern const bfd_target elf64_be_vec; 641 extern const bfd_target elf64_le_vec; 642 extern const bfd_target epiphany_elf32_vec; 643 extern const bfd_target fr30_elf32_vec; 644 extern const bfd_target frv_elf32_vec; 645 extern const bfd_target frv_elf32_fdpic_vec; 646 extern const bfd_target h8300_elf32_vec; 647 extern const bfd_target h8300_elf32_linux_vec; 648 extern const bfd_target hppa_elf32_vec; 649 extern const bfd_target hppa_elf32_linux_vec; 650 extern const bfd_target hppa_elf32_nbsd_vec; 651 extern const bfd_target hppa_elf64_vec; 652 extern const bfd_target hppa_elf64_linux_vec; 653 extern const bfd_target hppa_som_vec; 654 extern const bfd_target i386_aout_vec; 655 extern const bfd_target i386_aout_bsd_vec; 656 extern const bfd_target i386_aout_lynx_vec; 657 extern const bfd_target i386_coff_vec; 658 extern const bfd_target i386_coff_go32_vec; 659 extern const bfd_target i386_coff_go32stubbed_vec; 660 extern const bfd_target i386_coff_lynx_vec; 661 extern const bfd_target i386_elf32_vec; 662 extern const bfd_target i386_elf32_fbsd_vec; 663 extern const bfd_target i386_elf32_nacl_vec; 664 extern const bfd_target i386_elf32_sol2_vec; 665 extern const bfd_target i386_elf32_vxworks_vec; 666 extern const bfd_target i386_mach_o_vec; 667 extern const bfd_target i386_msdos_vec; 668 extern const bfd_target i386_pe_vec; 669 extern const bfd_target i386_pei_vec; 670 extern const bfd_target iamcu_elf32_vec; 671 extern const bfd_target ia64_elf32_be_vec; 672 extern const bfd_target ia64_elf32_hpux_be_vec; 673 extern const bfd_target ia64_elf64_be_vec; 674 extern const bfd_target ia64_elf64_le_vec; 675 extern const bfd_target ia64_elf64_hpux_be_vec; 676 extern const bfd_target ia64_elf64_vms_vec; 677 extern const bfd_target ia64_pei_vec; 678 extern const bfd_target ip2k_elf32_vec; 679 extern const bfd_target iq2000_elf32_vec; 680 extern const bfd_target k1om_elf64_vec; 681 extern const bfd_target k1om_elf64_fbsd_vec; 682 extern const bfd_target l1om_elf64_vec; 683 extern const bfd_target l1om_elf64_fbsd_vec; 684 extern const bfd_target lm32_elf32_vec; 685 extern const bfd_target lm32_elf32_fdpic_vec; 686 extern const bfd_target m32c_elf32_vec; 687 extern const bfd_target m32r_elf32_vec; 688 extern const bfd_target m32r_elf32_le_vec; 689 extern const bfd_target m32r_elf32_linux_vec; 690 extern const bfd_target m32r_elf32_linux_le_vec; 691 extern const bfd_target m68hc11_elf32_vec; 692 extern const bfd_target m68hc12_elf32_vec; 693 extern const bfd_target m68k_elf32_vec; 694 extern const bfd_target s12z_elf32_vec; 695 extern const bfd_target mach_o_be_vec; 696 extern const bfd_target mach_o_le_vec; 697 extern const bfd_target mach_o_fat_vec; 698 extern const bfd_target mcore_elf32_be_vec; 699 extern const bfd_target mcore_elf32_le_vec; 700 extern const bfd_target mcore_pe_be_vec; 701 extern const bfd_target mcore_pe_le_vec; 702 extern const bfd_target mcore_pei_be_vec; 703 extern const bfd_target mcore_pei_le_vec; 704 extern const bfd_target mep_elf32_vec; 705 extern const bfd_target mep_elf32_le_vec; 706 extern const bfd_target metag_elf32_vec; 707 extern const bfd_target microblaze_elf32_vec; 708 extern const bfd_target microblaze_elf32_le_vec; 709 extern const bfd_target mips_ecoff_be_vec; 710 extern const bfd_target mips_ecoff_le_vec; 711 extern const bfd_target mips_ecoff_bele_vec; 712 extern const bfd_target mips_elf32_be_vec; 713 extern const bfd_target mips_elf32_le_vec; 714 extern const bfd_target mips_elf32_n_be_vec; 715 extern const bfd_target mips_elf32_n_le_vec; 716 extern const bfd_target mips_elf32_ntrad_be_vec; 717 extern const bfd_target mips_elf32_ntrad_le_vec; 718 extern const bfd_target mips_elf32_ntradfbsd_be_vec; 719 extern const bfd_target mips_elf32_ntradfbsd_le_vec; 720 extern const bfd_target mips_elf32_trad_be_vec; 721 extern const bfd_target mips_elf32_trad_le_vec; 722 extern const bfd_target mips_elf32_tradfbsd_be_vec; 723 extern const bfd_target mips_elf32_tradfbsd_le_vec; 724 extern const bfd_target mips_elf32_vxworks_be_vec; 725 extern const bfd_target mips_elf32_vxworks_le_vec; 726 extern const bfd_target mips_elf64_be_vec; 727 extern const bfd_target mips_elf64_le_vec; 728 extern const bfd_target mips_elf64_trad_be_vec; 729 extern const bfd_target mips_elf64_trad_le_vec; 730 extern const bfd_target mips_elf64_tradfbsd_be_vec; 731 extern const bfd_target mips_elf64_tradfbsd_le_vec; 732 extern const bfd_target mmix_elf64_vec; 733 extern const bfd_target mmix_mmo_vec; 734 extern const bfd_target mn10200_elf32_vec; 735 extern const bfd_target mn10300_elf32_vec; 736 extern const bfd_target moxie_elf32_be_vec; 737 extern const bfd_target moxie_elf32_le_vec; 738 extern const bfd_target msp430_elf32_vec; 739 extern const bfd_target msp430_elf32_ti_vec; 740 extern const bfd_target mt_elf32_vec; 741 extern const bfd_target nds32_elf32_be_vec; 742 extern const bfd_target nds32_elf32_le_vec; 743 extern const bfd_target nds32_elf32_linux_be_vec; 744 extern const bfd_target nds32_elf32_linux_le_vec; 745 extern const bfd_target nfp_elf64_vec; 746 extern const bfd_target nios2_elf32_be_vec; 747 extern const bfd_target nios2_elf32_le_vec; 748 extern const bfd_target ns32k_aout_pc532mach_vec; 749 extern const bfd_target ns32k_aout_pc532nbsd_vec; 750 extern const bfd_target or1k_elf32_vec; 751 extern const bfd_target pdp11_aout_vec; 752 extern const bfd_target pef_vec; 753 extern const bfd_target pef_xlib_vec; 754 extern const bfd_target pj_elf32_vec; 755 extern const bfd_target pj_elf32_le_vec; 756 extern const bfd_target plugin_vec; 757 extern const bfd_target powerpc_boot_vec; 758 extern const bfd_target powerpc_elf32_vec; 759 extern const bfd_target powerpc_elf32_le_vec; 760 extern const bfd_target powerpc_elf32_fbsd_vec; 761 extern const bfd_target powerpc_elf32_vxworks_vec; 762 extern const bfd_target powerpc_elf64_vec; 763 extern const bfd_target powerpc_elf64_le_vec; 764 extern const bfd_target powerpc_elf64_fbsd_vec; 765 extern const bfd_target powerpc_pe_vec; 766 extern const bfd_target powerpc_pe_le_vec; 767 extern const bfd_target powerpc_pei_vec; 768 extern const bfd_target powerpc_pei_le_vec; 769 extern const bfd_target powerpc_xcoff_vec; 770 extern const bfd_target pru_elf32_vec; 771 extern const bfd_target riscv_elf32_vec; 772 extern const bfd_target riscv_elf64_vec; 773 extern const bfd_target rl78_elf32_vec; 774 extern const bfd_target rs6000_xcoff64_vec; 775 extern const bfd_target rs6000_xcoff64_aix_vec; 776 extern const bfd_target rs6000_xcoff_vec; 777 extern const bfd_target rx_elf32_be_vec; 778 extern const bfd_target rx_elf32_be_ns_vec; 779 extern const bfd_target rx_elf32_le_vec; 780 extern const bfd_target rx_elf32_linux_le_vec; 781 extern const bfd_target s390_elf32_vec; 782 extern const bfd_target s390_elf64_vec; 783 extern const bfd_target score_elf32_be_vec; 784 extern const bfd_target score_elf32_le_vec; 785 extern const bfd_target sh_coff_vec; 786 extern const bfd_target sh_coff_le_vec; 787 extern const bfd_target sh_coff_small_vec; 788 extern const bfd_target sh_coff_small_le_vec; 789 extern const bfd_target sh_elf32_vec; 790 extern const bfd_target sh_elf32_le_vec; 791 extern const bfd_target sh_elf32_fdpic_be_vec; 792 extern const bfd_target sh_elf32_fdpic_le_vec; 793 extern const bfd_target sh_elf32_linux_vec; 794 extern const bfd_target sh_elf32_linux_be_vec; 795 extern const bfd_target sh_elf32_nbsd_vec; 796 extern const bfd_target sh_elf32_nbsd_le_vec; 797 extern const bfd_target sh_elf32_vxworks_vec; 798 extern const bfd_target sh_elf32_vxworks_le_vec; 799 extern const bfd_target sh_pe_le_vec; 800 extern const bfd_target sh_pei_le_vec; 801 extern const bfd_target sparc_elf32_vec; 802 extern const bfd_target sparc_elf32_sol2_vec; 803 extern const bfd_target sparc_elf32_vxworks_vec; 804 extern const bfd_target sparc_elf64_vec; 805 extern const bfd_target sparc_elf64_fbsd_vec; 806 extern const bfd_target sparc_elf64_sol2_vec; 807 extern const bfd_target spu_elf32_vec; 808 extern const bfd_target sym_vec; 809 extern const bfd_target tic30_aout_vec; 810 extern const bfd_target tic30_coff_vec; 811 extern const bfd_target tic4x_coff0_vec; 812 extern const bfd_target tic4x_coff0_beh_vec; 813 extern const bfd_target tic4x_coff1_vec; 814 extern const bfd_target tic4x_coff1_beh_vec; 815 extern const bfd_target tic4x_coff2_vec; 816 extern const bfd_target tic4x_coff2_beh_vec; 817 extern const bfd_target tic54x_coff0_vec; 818 extern const bfd_target tic54x_coff0_beh_vec; 819 extern const bfd_target tic54x_coff1_vec; 820 extern const bfd_target tic54x_coff1_beh_vec; 821 extern const bfd_target tic54x_coff2_vec; 822 extern const bfd_target tic54x_coff2_beh_vec; 823 extern const bfd_target tic6x_elf32_be_vec; 824 extern const bfd_target tic6x_elf32_le_vec; 825 extern const bfd_target tic6x_elf32_c6000_be_vec; 826 extern const bfd_target tic6x_elf32_c6000_le_vec; 827 extern const bfd_target tic6x_elf32_linux_be_vec; 828 extern const bfd_target tic6x_elf32_linux_le_vec; 829 extern const bfd_target tic80_coff_vec; 830 extern const bfd_target tilegx_elf32_be_vec; 831 extern const bfd_target tilegx_elf32_le_vec; 832 extern const bfd_target tilegx_elf64_be_vec; 833 extern const bfd_target tilegx_elf64_le_vec; 834 extern const bfd_target tilepro_elf32_vec; 835 extern const bfd_target v800_elf32_vec; 836 extern const bfd_target v850_elf32_vec; 837 extern const bfd_target ft32_elf32_vec; 838 extern const bfd_target vax_aout_1knbsd_vec; 839 extern const bfd_target vax_aout_nbsd_vec; 840 extern const bfd_target vax_elf32_vec; 841 extern const bfd_target visium_elf32_vec; 842 extern const bfd_target wasm_vec; 843 extern const bfd_target wasm32_elf32_vec; 844 extern const bfd_target x86_64_coff_vec; 845 extern const bfd_target x86_64_elf32_vec; 846 extern const bfd_target x86_64_elf32_nacl_vec; 847 extern const bfd_target x86_64_elf64_vec; 848 extern const bfd_target x86_64_elf64_cloudabi_vec; 849 extern const bfd_target x86_64_elf64_fbsd_vec; 850 extern const bfd_target x86_64_elf64_nacl_vec; 851 extern const bfd_target x86_64_elf64_sol2_vec; 852 extern const bfd_target x86_64_mach_o_vec; 853 extern const bfd_target x86_64_pe_vec; 854 extern const bfd_target x86_64_pe_be_vec; 855 extern const bfd_target x86_64_pei_vec; 856 extern const bfd_target xc16x_elf32_vec; 857 extern const bfd_target xgate_elf32_vec; 858 extern const bfd_target xstormy16_elf32_vec; 859 extern const bfd_target xtensa_elf32_be_vec; 860 extern const bfd_target xtensa_elf32_le_vec; 861 extern const bfd_target z80_coff_vec; 862 extern const bfd_target z8k_coff_vec; 863 864 /* These are always included. */ 865 extern const bfd_target srec_vec; 866 extern const bfd_target symbolsrec_vec; 867 extern const bfd_target verilog_vec; 868 extern const bfd_target tekhex_vec; 869 extern const bfd_target binary_vec; 870 extern const bfd_target ihex_vec; 871 872 /* All of the xvecs for core files. */ 873 extern const bfd_target core_aix386_vec; 874 extern const bfd_target core_cisco_be_vec; 875 extern const bfd_target core_cisco_le_vec; 876 extern const bfd_target core_hppabsd_vec; 877 extern const bfd_target core_hpux_vec; 878 extern const bfd_target core_irix_vec; 879 extern const bfd_target core_netbsd_vec; 880 extern const bfd_target core_osf_vec; 881 extern const bfd_target core_ptrace_vec; 882 extern const bfd_target core_sco5_vec; 883 extern const bfd_target core_trad_vec; 884 885 static const bfd_target * const _bfd_target_vector[] = 886 { 887 #ifdef SELECT_VECS 888 889 SELECT_VECS, 890 891 #else /* not SELECT_VECS */ 892 893 #ifdef DEFAULT_VECTOR 894 &DEFAULT_VECTOR, 895 #endif 896 /* This list is alphabetized to make it easy to compare 897 with other vector lists -- the decls above and 898 the case statement in configure.ac. 899 Try to keep it in order when adding new targets, and 900 use a name of the form <cpu>_<format>_<other>_<endian>_vec. 901 Note that sorting is done as if _<endian>_vec wasn't present. 902 Vectors that don't compile on all systems, or aren't finished, 903 should have an entry here with #if 0 around it, to show that 904 it wasn't omitted by mistake. */ 905 #ifdef BFD64 906 &aarch64_elf32_be_vec, 907 &aarch64_elf32_le_vec, 908 &aarch64_elf64_be_vec, 909 &aarch64_elf64_be_cloudabi_vec, 910 &aarch64_elf64_le_vec, 911 &aarch64_elf64_le_cloudabi_vec, 912 &aarch64_mach_o_vec, 913 #endif 914 915 #ifdef BFD64 916 &alpha_ecoff_le_vec, 917 &alpha_elf64_vec, 918 &alpha_elf64_fbsd_vec, 919 &alpha_vms_vec, 920 #endif 921 &alpha_vms_lib_txt_vec, 922 923 &am33_elf32_linux_vec, 924 925 #if 0 926 /* Since a.out files lack decent magic numbers, no way to recognize 927 which kind of a.out file it is. */ 928 &aout_vec, 929 #endif 930 931 &arc_elf32_be_vec, 932 &arc_elf32_le_vec, 933 934 &arm_elf32_be_vec, 935 &arm_elf32_le_vec, 936 &arm_elf32_fdpic_be_vec, 937 &arm_elf32_fdpic_le_vec, 938 &arm_elf32_symbian_be_vec, 939 &arm_elf32_symbian_le_vec, 940 &arm_elf32_vxworks_be_vec, 941 &arm_elf32_vxworks_le_vec, 942 &arm_mach_o_vec, 943 &arm_pe_be_vec, 944 &arm_pe_le_vec, 945 &arm_pe_wince_be_vec, 946 &arm_pe_wince_le_vec, 947 &arm_pei_be_vec, 948 &arm_pei_le_vec, 949 &arm_pei_wince_be_vec, 950 &arm_pei_wince_le_vec, 951 952 &avr_elf32_vec, 953 954 &bfin_elf32_vec, 955 &bfin_elf32_fdpic_vec, 956 957 &cr16_elf32_vec, 958 &cr16c_elf32_vec, 959 960 &cris_aout_vec, 961 &cris_elf32_vec, 962 &cris_elf32_us_vec, 963 964 &crx_elf32_vec, 965 966 &csky_elf32_be_vec, 967 &csky_elf32_le_vec, 968 969 &d10v_elf32_vec, 970 &d30v_elf32_vec, 971 972 &dlx_elf32_be_vec, 973 974 /* This, and other vectors, may not be used in any *.mt configuration. 975 But that does not mean they are unnecessary. If configured with 976 --enable-targets=all, objdump or gdb should be able to examine 977 the file even if we don't recognize the machine type. */ 978 &elf32_be_vec, 979 &elf32_le_vec, 980 #ifdef BFD64 981 &elf64_be_vec, 982 &elf64_le_vec, 983 #endif 984 985 &epiphany_elf32_vec, 986 987 &fr30_elf32_vec, 988 989 &frv_elf32_vec, 990 &frv_elf32_fdpic_vec, 991 992 &h8300_elf32_vec, 993 &h8300_elf32_linux_vec, 994 995 &hppa_elf32_vec, 996 &hppa_elf32_linux_vec, 997 &hppa_elf32_nbsd_vec, 998 #ifdef BFD64 999 &hppa_elf64_vec, 1000 &hppa_elf64_linux_vec, 1001 #endif 1002 &hppa_som_vec, 1003 1004 &i386_aout_vec, 1005 &i386_aout_bsd_vec, 1006 &i386_aout_lynx_vec, 1007 &i386_coff_vec, 1008 &i386_coff_go32_vec, 1009 &i386_coff_go32stubbed_vec, 1010 &i386_coff_lynx_vec, 1011 &i386_elf32_vec, 1012 &i386_elf32_fbsd_vec, 1013 &i386_elf32_nacl_vec, 1014 &i386_elf32_sol2_vec, 1015 &i386_elf32_vxworks_vec, 1016 &i386_mach_o_vec, 1017 &i386_msdos_vec, 1018 &i386_pe_vec, 1019 &i386_pei_vec, 1020 1021 &iamcu_elf32_vec, 1022 1023 #ifdef BFD64 1024 #if 0 1025 &ia64_elf32_be_vec, 1026 #endif 1027 &ia64_elf32_hpux_be_vec, 1028 &ia64_elf64_be_vec, 1029 &ia64_elf64_le_vec, 1030 &ia64_elf64_hpux_be_vec, 1031 &ia64_elf64_vms_vec, 1032 &ia64_pei_vec, 1033 #endif 1034 1035 &ip2k_elf32_vec, 1036 &iq2000_elf32_vec, 1037 1038 #ifdef BFD64 1039 &k1om_elf64_vec, 1040 &k1om_elf64_fbsd_vec, 1041 &l1om_elf64_vec, 1042 &l1om_elf64_fbsd_vec, 1043 #endif 1044 1045 &lm32_elf32_vec, 1046 1047 &m32c_elf32_vec, 1048 1049 &m32r_elf32_vec, 1050 &m32r_elf32_le_vec, 1051 &m32r_elf32_linux_vec, 1052 &m32r_elf32_linux_le_vec, 1053 1054 &m68hc11_elf32_vec, 1055 &m68hc12_elf32_vec, 1056 1057 &m68k_elf32_vec, 1058 1059 &s12z_elf32_vec, 1060 1061 &mach_o_be_vec, 1062 &mach_o_le_vec, 1063 &mach_o_fat_vec, 1064 1065 &mcore_elf32_be_vec, 1066 &mcore_elf32_le_vec, 1067 &mcore_pe_be_vec, 1068 &mcore_pe_le_vec, 1069 &mcore_pei_be_vec, 1070 &mcore_pei_le_vec, 1071 1072 &mep_elf32_vec, 1073 1074 &metag_elf32_vec, 1075 1076 µblaze_elf32_vec, 1077 1078 &mips_ecoff_be_vec, 1079 &mips_ecoff_le_vec, 1080 &mips_ecoff_bele_vec, 1081 #ifdef BFD64 1082 &mips_elf32_be_vec, 1083 &mips_elf32_le_vec, 1084 &mips_elf32_n_be_vec, 1085 &mips_elf32_n_le_vec, 1086 &mips_elf32_ntrad_be_vec, 1087 &mips_elf32_ntrad_le_vec, 1088 &mips_elf32_ntradfbsd_be_vec, 1089 &mips_elf32_ntradfbsd_le_vec, 1090 &mips_elf32_trad_be_vec, 1091 &mips_elf32_trad_le_vec, 1092 &mips_elf32_tradfbsd_be_vec, 1093 &mips_elf32_tradfbsd_le_vec, 1094 &mips_elf32_vxworks_be_vec, 1095 &mips_elf32_vxworks_le_vec, 1096 &mips_elf64_be_vec, 1097 &mips_elf64_le_vec, 1098 &mips_elf64_trad_be_vec, 1099 &mips_elf64_trad_le_vec, 1100 &mips_elf64_tradfbsd_be_vec, 1101 &mips_elf64_tradfbsd_le_vec, 1102 #endif 1103 1104 #ifdef BFD64 1105 &mmix_elf64_vec, 1106 &mmix_mmo_vec, 1107 #endif 1108 1109 &mn10200_elf32_vec, 1110 &mn10300_elf32_vec, 1111 1112 &moxie_elf32_be_vec, 1113 &moxie_elf32_le_vec, 1114 1115 &msp430_elf32_vec, 1116 &msp430_elf32_ti_vec, 1117 1118 &mt_elf32_vec, 1119 1120 &nds32_elf32_be_vec, 1121 &nds32_elf32_le_vec, 1122 &nds32_elf32_linux_be_vec, 1123 &nds32_elf32_linux_le_vec, 1124 1125 #ifdef BFD64 1126 &nfp_elf64_vec, 1127 #endif 1128 1129 &nios2_elf32_be_vec, 1130 &nios2_elf32_le_vec, 1131 1132 &ns32k_aout_pc532mach_vec, 1133 &ns32k_aout_pc532nbsd_vec, 1134 1135 &or1k_elf32_vec, 1136 1137 &pdp11_aout_vec, 1138 1139 &pef_vec, 1140 &pef_xlib_vec, 1141 1142 &pj_elf32_vec, 1143 &pj_elf32_le_vec, 1144 1145 #if BFD_SUPPORTS_PLUGINS 1146 &plugin_vec, 1147 #endif 1148 1149 &powerpc_boot_vec, 1150 &powerpc_elf32_vec, 1151 &powerpc_elf32_le_vec, 1152 &powerpc_elf32_fbsd_vec, 1153 &powerpc_elf32_vxworks_vec, 1154 #ifdef BFD64 1155 &powerpc_elf64_vec, 1156 &powerpc_elf64_le_vec, 1157 &powerpc_elf64_fbsd_vec, 1158 #endif 1159 &powerpc_pe_vec, 1160 &powerpc_pe_le_vec, 1161 &powerpc_pei_vec, 1162 &powerpc_pei_le_vec, 1163 #if 0 1164 /* This has the same magic number as RS/6000. */ 1165 &powerpc_xcoff_vec, 1166 #endif 1167 1168 &pru_elf32_vec, 1169 1170 #ifdef BFD64 1171 &riscv_elf32_vec, 1172 &riscv_elf64_vec, 1173 #endif 1174 &rl78_elf32_vec, 1175 1176 #ifdef BFD64 1177 &rs6000_xcoff64_vec, 1178 &rs6000_xcoff64_aix_vec, 1179 #endif 1180 &rs6000_xcoff_vec, 1181 1182 &rx_elf32_be_vec, 1183 &rx_elf32_be_ns_vec, 1184 &rx_elf32_le_vec, 1185 1186 &s390_elf32_vec, 1187 #ifdef BFD64 1188 &s390_elf64_vec, 1189 #endif 1190 1191 #ifdef BFD64 1192 &score_elf32_be_vec, 1193 &score_elf32_le_vec, 1194 #endif 1195 1196 &sh_coff_vec, 1197 &sh_coff_le_vec, 1198 &sh_coff_small_vec, 1199 &sh_coff_small_le_vec, 1200 &sh_elf32_vec, 1201 &sh_elf32_le_vec, 1202 &sh_elf32_fdpic_be_vec, 1203 &sh_elf32_fdpic_le_vec, 1204 &sh_elf32_linux_vec, 1205 &sh_elf32_linux_be_vec, 1206 &sh_elf32_nbsd_vec, 1207 &sh_elf32_nbsd_le_vec, 1208 &sh_elf32_vxworks_vec, 1209 &sh_elf32_vxworks_le_vec, 1210 &sh_pe_le_vec, 1211 &sh_pei_le_vec, 1212 1213 &sparc_elf32_vec, 1214 &sparc_elf32_sol2_vec, 1215 &sparc_elf32_vxworks_vec, 1216 #ifdef BFD64 1217 &sparc_elf64_vec, 1218 &sparc_elf64_fbsd_vec, 1219 &sparc_elf64_sol2_vec, 1220 #endif 1221 1222 &spu_elf32_vec, 1223 1224 &sym_vec, 1225 1226 &tic30_aout_vec, 1227 &tic30_coff_vec, 1228 &tic54x_coff0_beh_vec, 1229 &tic54x_coff0_vec, 1230 &tic54x_coff1_beh_vec, 1231 &tic54x_coff1_vec, 1232 &tic54x_coff2_beh_vec, 1233 &tic54x_coff2_vec, 1234 &tic6x_elf32_be_vec, 1235 &tic6x_elf32_le_vec, 1236 &tic80_coff_vec, 1237 1238 &tilegx_elf32_be_vec, 1239 &tilegx_elf32_le_vec, 1240 #ifdef BFD64 1241 &tilegx_elf64_be_vec, 1242 &tilegx_elf64_le_vec, 1243 #endif 1244 &tilepro_elf32_vec, 1245 1246 &ft32_elf32_vec, 1247 1248 &v800_elf32_vec, 1249 &v850_elf32_vec, 1250 1251 &vax_aout_1knbsd_vec, 1252 &vax_aout_nbsd_vec, 1253 &vax_elf32_vec, 1254 1255 &visium_elf32_vec, 1256 1257 &wasm_vec, 1258 &wasm32_elf32_vec, 1259 1260 #ifdef BFD64 1261 &x86_64_coff_vec, 1262 &x86_64_elf32_vec, 1263 &x86_64_elf32_nacl_vec, 1264 &x86_64_elf64_vec, 1265 &x86_64_elf64_cloudabi_vec, 1266 &x86_64_elf64_fbsd_vec, 1267 &x86_64_elf64_nacl_vec, 1268 &x86_64_elf64_sol2_vec, 1269 &x86_64_mach_o_vec, 1270 &x86_64_pe_vec, 1271 &x86_64_pe_be_vec, 1272 &x86_64_pei_vec, 1273 #endif 1274 1275 &xc16x_elf32_vec, 1276 1277 &xgate_elf32_vec, 1278 1279 &xstormy16_elf32_vec, 1280 1281 &xtensa_elf32_be_vec, 1282 &xtensa_elf32_le_vec, 1283 1284 &z80_coff_vec, 1285 1286 &z8k_coff_vec, 1287 #endif /* not SELECT_VECS */ 1288 1289 /* Always support S-records, for convenience. */ 1290 &srec_vec, 1291 &symbolsrec_vec, 1292 /* And verilog. */ 1293 &verilog_vec, 1294 /* And tekhex */ 1295 &tekhex_vec, 1296 /* Likewise for binary output. */ 1297 &binary_vec, 1298 /* Likewise for ihex. */ 1299 &ihex_vec, 1300 1301 /* Add any required traditional-core-file-handler. */ 1302 1303 #ifdef AIX386_CORE 1304 &core_aix386_vec, 1305 #endif 1306 #if 0 1307 /* We don't include cisco_core_*_vec. Although it has a magic number, 1308 the magic number isn't at the beginning of the file, and thus 1309 might spuriously match other kinds of files. */ 1310 &core_cisco_be_vec, 1311 &core_cisco_le_vec, 1312 #endif 1313 #ifdef HPPABSD_CORE 1314 &core_hppabsd_vec, 1315 #endif 1316 #ifdef HPUX_CORE 1317 &core_hpux_vec, 1318 #endif 1319 #ifdef IRIX_CORE 1320 &core_irix_vec, 1321 #endif 1322 #ifdef NETBSD_CORE 1323 &core_netbsd_vec, 1324 #endif 1325 #ifdef OSF_CORE 1326 &core_osf_vec, 1327 #endif 1328 #ifdef PTRACE_CORE 1329 &core_ptrace_vec, 1330 #endif 1331 #ifdef SCO5_CORE 1332 &core_sco5_vec, 1333 #endif 1334 #ifdef TRAD_CORE 1335 &core_trad_vec, 1336 #endif 1337 1338 NULL /* end of list marker */ 1339 }; 1340 const bfd_target * const *bfd_target_vector = _bfd_target_vector; 1341 1342 /* bfd_default_vector[0] contains either the address of the default vector, 1343 if there is one, or zero if there isn't. */ 1344 1345 const bfd_target *bfd_default_vector[] = { 1346 #ifdef DEFAULT_VECTOR 1347 &DEFAULT_VECTOR, 1348 #endif 1349 NULL 1350 }; 1351 1352 /* bfd_associated_vector[] contains the associated target vectors used 1353 to reduce the ambiguity in bfd_check_format_matches. */ 1354 1355 static const bfd_target *_bfd_associated_vector[] = { 1356 #ifdef ASSOCIATED_VECS 1357 ASSOCIATED_VECS, 1358 #endif 1359 NULL 1360 }; 1361 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector; 1362 1363 /* When there is an ambiguous match, bfd_check_format_matches puts the 1364 names of the matching targets in an array. This variable is the maximum 1365 number of entries that the array could possibly need. */ 1366 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector); 1367 1368 /* This array maps configuration triplets onto BFD vectors. */ 1370 1371 struct targmatch 1372 { 1373 /* The configuration triplet. */ 1374 const char *triplet; 1375 /* The BFD vector. If this is NULL, then the vector is found by 1376 searching forward for the next structure with a non NULL vector 1377 field. */ 1378 const bfd_target *vector; 1379 }; 1380 1381 /* targmatch.h is built by Makefile out of config.bfd. */ 1382 static const struct targmatch bfd_target_match[] = { 1383 #include "targmatch.h" 1384 { NULL, NULL } 1385 }; 1386 1387 /* Find a target vector, given a name or configuration triplet. */ 1388 1389 static const bfd_target * 1390 find_target (const char *name) 1391 { 1392 const bfd_target * const *target; 1393 const struct targmatch *match; 1394 1395 for (target = &bfd_target_vector[0]; *target != NULL; target++) 1396 if (strcmp (name, (*target)->name) == 0) 1397 return *target; 1398 1399 /* If we couldn't match on the exact name, try matching on the 1400 configuration triplet. FIXME: We should run the triplet through 1401 config.sub first, but that is hard. */ 1402 for (match = &bfd_target_match[0]; match->triplet != NULL; match++) 1403 { 1404 if (fnmatch (match->triplet, name, 0) == 0) 1405 { 1406 while (match->vector == NULL) 1407 ++match; 1408 return match->vector; 1409 } 1410 } 1411 1412 bfd_set_error (bfd_error_invalid_target); 1413 return NULL; 1414 } 1415 1416 /* 1417 FUNCTION 1418 bfd_set_default_target 1419 1420 SYNOPSIS 1421 bfd_boolean bfd_set_default_target (const char *name); 1422 1423 DESCRIPTION 1424 Set the default target vector to use when recognizing a BFD. 1425 This takes the name of the target, which may be a BFD target 1426 name or a configuration triplet. 1427 */ 1428 1429 bfd_boolean 1430 bfd_set_default_target (const char *name) 1431 { 1432 const bfd_target *target; 1433 1434 if (bfd_default_vector[0] != NULL 1435 && strcmp (name, bfd_default_vector[0]->name) == 0) 1436 return TRUE; 1437 1438 target = find_target (name); 1439 if (target == NULL) 1440 return FALSE; 1441 1442 bfd_default_vector[0] = target; 1443 return TRUE; 1444 } 1445 1446 /* 1447 FUNCTION 1448 bfd_find_target 1449 1450 SYNOPSIS 1451 const bfd_target *bfd_find_target (const char *target_name, bfd *abfd); 1452 1453 DESCRIPTION 1454 Return a pointer to the transfer vector for the object target 1455 named @var{target_name}. If @var{target_name} is <<NULL>>, 1456 choose the one in the environment variable <<GNUTARGET>>; if 1457 that is null or not defined, then choose the first entry in the 1458 target list. Passing in the string "default" or setting the 1459 environment variable to "default" will cause the first entry in 1460 the target list to be returned, and "target_defaulted" will be 1461 set in the BFD if @var{abfd} isn't <<NULL>>. This causes 1462 <<bfd_check_format>> to loop over all the targets to find the 1463 one that matches the file being read. 1464 */ 1465 1466 const bfd_target * 1467 bfd_find_target (const char *target_name, bfd *abfd) 1468 { 1469 const char *targname; 1470 const bfd_target *target; 1471 1472 if (target_name != NULL) 1473 targname = target_name; 1474 else 1475 targname = getenv ("GNUTARGET"); 1476 1477 /* This is safe; the vector cannot be null. */ 1478 if (targname == NULL || strcmp (targname, "default") == 0) 1479 { 1480 if (bfd_default_vector[0] != NULL) 1481 target = bfd_default_vector[0]; 1482 else 1483 target = bfd_target_vector[0]; 1484 if (abfd) 1485 { 1486 abfd->xvec = target; 1487 abfd->target_defaulted = TRUE; 1488 } 1489 return target; 1490 } 1491 1492 if (abfd) 1493 abfd->target_defaulted = FALSE; 1494 1495 target = find_target (targname); 1496 if (target == NULL) 1497 return NULL; 1498 1499 if (abfd) 1500 abfd->xvec = target; 1501 return target; 1502 } 1503 1504 /* Helper function for bfd_get_target_info to determine the target's 1505 architecture. This method handles bfd internal target names as 1506 tuples and triplets. */ 1507 static bfd_boolean 1508 _bfd_find_arch_match (const char *tname, const char **arch, 1509 const char **def_target_arch) 1510 { 1511 if (!arch) 1512 return FALSE; 1513 1514 while (*arch != NULL) 1515 { 1516 const char *in_a = strstr (*arch, tname); 1517 char end_ch = (in_a ? in_a[strlen (tname)] : 0); 1518 1519 if (in_a && (in_a == *arch || in_a[-1] == ':') 1520 && end_ch == 0) 1521 { 1522 *def_target_arch = *arch; 1523 return TRUE; 1524 } 1525 arch++; 1526 } 1527 return FALSE; 1528 } 1529 1530 /* 1531 FUNCTION 1532 bfd_get_target_info 1533 SYNOPSIS 1534 const bfd_target *bfd_get_target_info (const char *target_name, 1535 bfd *abfd, 1536 bfd_boolean *is_bigendian, 1537 int *underscoring, 1538 const char **def_target_arch); 1539 DESCRIPTION 1540 Return a pointer to the transfer vector for the object target 1541 named @var{target_name}. If @var{target_name} is <<NULL>>, 1542 choose the one in the environment variable <<GNUTARGET>>; if 1543 that is null or not defined, then choose the first entry in the 1544 target list. Passing in the string "default" or setting the 1545 environment variable to "default" will cause the first entry in 1546 the target list to be returned, and "target_defaulted" will be 1547 set in the BFD if @var{abfd} isn't <<NULL>>. This causes 1548 <<bfd_check_format>> to loop over all the targets to find the 1549 one that matches the file being read. 1550 If @var{is_bigendian} is not <<NULL>>, then set this value to target's 1551 endian mode. True for big-endian, FALSE for little-endian or for 1552 invalid target. 1553 If @var{underscoring} is not <<NULL>>, then set this value to target's 1554 underscoring mode. Zero for none-underscoring, -1 for invalid target, 1555 else the value of target vector's symbol underscoring. 1556 If @var{def_target_arch} is not <<NULL>>, then set it to the architecture 1557 string specified by the target_name. 1558 */ 1559 const bfd_target * 1560 bfd_get_target_info (const char *target_name, bfd *abfd, 1561 bfd_boolean *is_bigendian, 1562 int *underscoring, const char **def_target_arch) 1563 { 1564 const bfd_target *target_vec; 1565 1566 if (is_bigendian) 1567 *is_bigendian = FALSE; 1568 if (underscoring) 1569 *underscoring = -1; 1570 if (def_target_arch) 1571 *def_target_arch = NULL; 1572 target_vec = bfd_find_target (target_name, abfd); 1573 if (! target_vec) 1574 return NULL; 1575 if (is_bigendian) 1576 *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE 1577 : FALSE); 1578 if (underscoring) 1579 *underscoring = ((int) target_vec->symbol_leading_char) & 0xff; 1580 1581 if (def_target_arch) 1582 { 1583 const char *tname = target_vec->name; 1584 const char **arches = bfd_arch_list (); 1585 1586 if (arches && tname) 1587 { 1588 char *hyp = strchr (tname, '-'); 1589 1590 if (hyp != NULL) 1591 { 1592 tname = ++hyp; 1593 1594 /* Make sure we detect architecture names 1595 for triplets like "pe-arm-wince-little". */ 1596 if (!_bfd_find_arch_match (tname, arches, def_target_arch)) 1597 { 1598 char new_tname[50]; 1599 1600 strcpy (new_tname, hyp); 1601 while ((hyp = strrchr (new_tname, '-')) != NULL) 1602 { 1603 *hyp = 0; 1604 if (_bfd_find_arch_match (new_tname, arches, 1605 def_target_arch)) 1606 break; 1607 } 1608 } 1609 } 1610 else 1611 _bfd_find_arch_match (tname, arches, def_target_arch); 1612 } 1613 1614 if (arches) 1615 free (arches); 1616 } 1617 return target_vec; 1618 } 1619 1620 /* 1621 FUNCTION 1622 bfd_target_list 1623 1624 SYNOPSIS 1625 const char ** bfd_target_list (void); 1626 1627 DESCRIPTION 1628 Return a freshly malloced NULL-terminated 1629 vector of the names of all the valid BFD targets. Do not 1630 modify the names. 1631 1632 */ 1633 1634 const char ** 1635 bfd_target_list (void) 1636 { 1637 int vec_length = 0; 1638 bfd_size_type amt; 1639 const bfd_target * const *target; 1640 const char **name_list, **name_ptr; 1641 1642 for (target = &bfd_target_vector[0]; *target != NULL; target++) 1643 vec_length++; 1644 1645 amt = (vec_length + 1) * sizeof (char **); 1646 name_ptr = name_list = (const char **) bfd_malloc (amt); 1647 1648 if (name_list == NULL) 1649 return NULL; 1650 1651 for (target = &bfd_target_vector[0]; *target != NULL; target++) 1652 if (target == &bfd_target_vector[0] 1653 || *target != bfd_target_vector[0]) 1654 *name_ptr++ = (*target)->name; 1655 1656 *name_ptr = NULL; 1657 return name_list; 1658 } 1659 1660 /* 1661 FUNCTION 1662 bfd_iterate_over_targets 1663 1664 SYNOPSIS 1665 const bfd_target *bfd_iterate_over_targets 1666 (int (*func) (const bfd_target *, void *), 1667 void *data); 1668 1669 DESCRIPTION 1670 Call @var{func} for each target in the list of BFD target 1671 vectors, passing @var{data} to @var{func}. Stop iterating if 1672 @var{func} returns a non-zero result, and return that target 1673 vector. Return NULL if @var{func} always returns zero. 1674 */ 1675 1676 const bfd_target * 1677 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *), 1678 void *data) 1679 { 1680 const bfd_target *const *target; 1681 1682 for (target = bfd_target_vector; *target != NULL; ++target) 1683 if (func (*target, data)) 1684 return *target; 1685 1686 return NULL; 1687 } 1688 1689 /* 1690 FUNCTION 1691 bfd_flavour_name 1692 1693 SYNOPSIS 1694 const char *bfd_flavour_name (enum bfd_flavour flavour); 1695 1696 DESCRIPTION 1697 Return the string form of @var{flavour}. 1698 */ 1699 1700 const char * 1701 bfd_flavour_name (enum bfd_flavour flavour) 1702 { 1703 switch (flavour) 1704 { 1705 case bfd_target_unknown_flavour: return "unknown file format"; 1706 case bfd_target_aout_flavour: return "a.out"; 1707 case bfd_target_coff_flavour: return "COFF"; 1708 case bfd_target_ecoff_flavour: return "ECOFF"; 1709 case bfd_target_xcoff_flavour: return "XCOFF"; 1710 case bfd_target_elf_flavour: return "ELF"; 1711 case bfd_target_tekhex_flavour: return "Tekhex"; 1712 case bfd_target_srec_flavour: return "Srec"; 1713 case bfd_target_verilog_flavour: return "Verilog"; 1714 case bfd_target_ihex_flavour: return "Ihex"; 1715 case bfd_target_som_flavour: return "SOM"; 1716 case bfd_target_os9k_flavour: return "OS9K"; 1717 case bfd_target_versados_flavour: return "Versados"; 1718 case bfd_target_msdos_flavour: return "MSDOS"; 1719 case bfd_target_ovax_flavour: return "Ovax"; 1720 case bfd_target_evax_flavour: return "Evax"; 1721 case bfd_target_mmo_flavour: return "mmo"; 1722 case bfd_target_mach_o_flavour: return "MACH_O"; 1723 case bfd_target_pef_flavour: return "PEF"; 1724 case bfd_target_pef_xlib_flavour: return "PEF_XLIB"; 1725 case bfd_target_sym_flavour: return "SYM"; 1726 /* There is no "default" case here so that -Wswitch (part of -Wall) 1727 catches missing entries. */ 1728 } 1729 1730 abort (); 1731 } 1732
Indexes created Fri Mar 27 00:22:57 UTC 2026