targets.c revision 1.10
1 /* Generic target-file-type support for the BFD library. 2 Copyright (C) 1990-2018 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 d10v_elf32_vec; 634 extern const bfd_target d30v_elf32_vec; 635 extern const bfd_target dlx_elf32_be_vec; 636 extern const bfd_target elf32_be_vec; 637 extern const bfd_target elf32_le_vec; 638 extern const bfd_target elf64_be_vec; 639 extern const bfd_target elf64_le_vec; 640 extern const bfd_target epiphany_elf32_vec; 641 extern const bfd_target fr30_elf32_vec; 642 extern const bfd_target frv_elf32_vec; 643 extern const bfd_target frv_elf32_fdpic_vec; 644 extern const bfd_target h8300_elf32_vec; 645 extern const bfd_target h8300_elf32_linux_vec; 646 extern const bfd_target hppa_elf32_vec; 647 extern const bfd_target hppa_elf32_linux_vec; 648 extern const bfd_target hppa_elf32_nbsd_vec; 649 extern const bfd_target hppa_elf64_vec; 650 extern const bfd_target hppa_elf64_linux_vec; 651 extern const bfd_target hppa_som_vec; 652 extern const bfd_target i386_aout_vec; 653 extern const bfd_target i386_aout_bsd_vec; 654 extern const bfd_target i386_aout_lynx_vec; 655 extern const bfd_target i386_coff_vec; 656 extern const bfd_target i386_coff_go32_vec; 657 extern const bfd_target i386_coff_go32stubbed_vec; 658 extern const bfd_target i386_coff_lynx_vec; 659 extern const bfd_target i386_elf32_vec; 660 extern const bfd_target i386_elf32_fbsd_vec; 661 extern const bfd_target i386_elf32_nacl_vec; 662 extern const bfd_target i386_elf32_sol2_vec; 663 extern const bfd_target i386_elf32_vxworks_vec; 664 extern const bfd_target i386_mach_o_vec; 665 extern const bfd_target i386_msdos_vec; 666 extern const bfd_target i386_pe_vec; 667 extern const bfd_target i386_pei_vec; 668 extern const bfd_target iamcu_elf32_vec; 669 extern const bfd_target ia64_elf32_be_vec; 670 extern const bfd_target ia64_elf32_hpux_be_vec; 671 extern const bfd_target ia64_elf64_be_vec; 672 extern const bfd_target ia64_elf64_le_vec; 673 extern const bfd_target ia64_elf64_hpux_be_vec; 674 extern const bfd_target ia64_elf64_vms_vec; 675 extern const bfd_target ia64_pei_vec; 676 extern const bfd_target ip2k_elf32_vec; 677 extern const bfd_target iq2000_elf32_vec; 678 extern const bfd_target k1om_elf64_vec; 679 extern const bfd_target k1om_elf64_fbsd_vec; 680 extern const bfd_target l1om_elf64_vec; 681 extern const bfd_target l1om_elf64_fbsd_vec; 682 extern const bfd_target lm32_elf32_vec; 683 extern const bfd_target lm32_elf32_fdpic_vec; 684 extern const bfd_target m32c_elf32_vec; 685 extern const bfd_target m32r_elf32_vec; 686 extern const bfd_target m32r_elf32_le_vec; 687 extern const bfd_target m32r_elf32_linux_vec; 688 extern const bfd_target m32r_elf32_linux_le_vec; 689 extern const bfd_target m68hc11_elf32_vec; 690 extern const bfd_target m68hc12_elf32_vec; 691 extern const bfd_target m68k_elf32_vec; 692 extern const bfd_target s12z_elf32_vec; 693 extern const bfd_target mach_o_be_vec; 694 extern const bfd_target mach_o_le_vec; 695 extern const bfd_target mach_o_fat_vec; 696 extern const bfd_target mcore_elf32_be_vec; 697 extern const bfd_target mcore_elf32_le_vec; 698 extern const bfd_target mcore_pe_be_vec; 699 extern const bfd_target mcore_pe_le_vec; 700 extern const bfd_target mcore_pei_be_vec; 701 extern const bfd_target mcore_pei_le_vec; 702 extern const bfd_target mep_elf32_vec; 703 extern const bfd_target mep_elf32_le_vec; 704 extern const bfd_target metag_elf32_vec; 705 extern const bfd_target microblaze_elf32_vec; 706 extern const bfd_target microblaze_elf32_le_vec; 707 extern const bfd_target mips_ecoff_be_vec; 708 extern const bfd_target mips_ecoff_le_vec; 709 extern const bfd_target mips_ecoff_bele_vec; 710 extern const bfd_target mips_elf32_be_vec; 711 extern const bfd_target mips_elf32_le_vec; 712 extern const bfd_target mips_elf32_n_be_vec; 713 extern const bfd_target mips_elf32_n_le_vec; 714 extern const bfd_target mips_elf32_ntrad_be_vec; 715 extern const bfd_target mips_elf32_ntrad_le_vec; 716 extern const bfd_target mips_elf32_ntradfbsd_be_vec; 717 extern const bfd_target mips_elf32_ntradfbsd_le_vec; 718 extern const bfd_target mips_elf32_trad_be_vec; 719 extern const bfd_target mips_elf32_trad_le_vec; 720 extern const bfd_target mips_elf32_tradfbsd_be_vec; 721 extern const bfd_target mips_elf32_tradfbsd_le_vec; 722 extern const bfd_target mips_elf32_vxworks_be_vec; 723 extern const bfd_target mips_elf32_vxworks_le_vec; 724 extern const bfd_target mips_elf64_be_vec; 725 extern const bfd_target mips_elf64_le_vec; 726 extern const bfd_target mips_elf64_trad_be_vec; 727 extern const bfd_target mips_elf64_trad_le_vec; 728 extern const bfd_target mips_elf64_tradfbsd_be_vec; 729 extern const bfd_target mips_elf64_tradfbsd_le_vec; 730 extern const bfd_target mmix_elf64_vec; 731 extern const bfd_target mmix_mmo_vec; 732 extern const bfd_target mn10200_elf32_vec; 733 extern const bfd_target mn10300_elf32_vec; 734 extern const bfd_target moxie_elf32_be_vec; 735 extern const bfd_target moxie_elf32_le_vec; 736 extern const bfd_target msp430_elf32_vec; 737 extern const bfd_target msp430_elf32_ti_vec; 738 extern const bfd_target mt_elf32_vec; 739 extern const bfd_target nds32_elf32_be_vec; 740 extern const bfd_target nds32_elf32_le_vec; 741 extern const bfd_target nds32_elf32_linux_be_vec; 742 extern const bfd_target nds32_elf32_linux_le_vec; 743 extern const bfd_target nfp_elf64_vec; 744 extern const bfd_target nios2_elf32_be_vec; 745 extern const bfd_target nios2_elf32_le_vec; 746 extern const bfd_target ns32k_aout_pc532mach_vec; 747 extern const bfd_target ns32k_aout_pc532nbsd_vec; 748 extern const bfd_target or1k_elf32_vec; 749 extern const bfd_target pdp11_aout_vec; 750 extern const bfd_target pef_vec; 751 extern const bfd_target pef_xlib_vec; 752 extern const bfd_target pj_elf32_vec; 753 extern const bfd_target pj_elf32_le_vec; 754 extern const bfd_target plugin_vec; 755 extern const bfd_target powerpc_boot_vec; 756 extern const bfd_target powerpc_elf32_vec; 757 extern const bfd_target powerpc_elf32_le_vec; 758 extern const bfd_target powerpc_elf32_fbsd_vec; 759 extern const bfd_target powerpc_elf32_vxworks_vec; 760 extern const bfd_target powerpc_elf64_vec; 761 extern const bfd_target powerpc_elf64_le_vec; 762 extern const bfd_target powerpc_elf64_fbsd_vec; 763 extern const bfd_target powerpc_pe_vec; 764 extern const bfd_target powerpc_pe_le_vec; 765 extern const bfd_target powerpc_pei_vec; 766 extern const bfd_target powerpc_pei_le_vec; 767 extern const bfd_target powerpc_xcoff_vec; 768 extern const bfd_target pru_elf32_vec; 769 extern const bfd_target riscv_elf32_vec; 770 extern const bfd_target riscv_elf64_vec; 771 extern const bfd_target rl78_elf32_vec; 772 extern const bfd_target rs6000_xcoff64_vec; 773 extern const bfd_target rs6000_xcoff64_aix_vec; 774 extern const bfd_target rs6000_xcoff_vec; 775 extern const bfd_target rx_elf32_be_vec; 776 extern const bfd_target rx_elf32_be_ns_vec; 777 extern const bfd_target rx_elf32_le_vec; 778 extern const bfd_target s390_elf32_vec; 779 extern const bfd_target s390_elf64_vec; 780 extern const bfd_target score_elf32_be_vec; 781 extern const bfd_target score_elf32_le_vec; 782 extern const bfd_target sh_coff_vec; 783 extern const bfd_target sh_coff_le_vec; 784 extern const bfd_target sh_coff_small_vec; 785 extern const bfd_target sh_coff_small_le_vec; 786 extern const bfd_target sh_elf32_vec; 787 extern const bfd_target sh_elf32_le_vec; 788 extern const bfd_target sh_elf32_fdpic_be_vec; 789 extern const bfd_target sh_elf32_fdpic_le_vec; 790 extern const bfd_target sh_elf32_linux_vec; 791 extern const bfd_target sh_elf32_linux_be_vec; 792 extern const bfd_target sh_elf32_nbsd_vec; 793 extern const bfd_target sh_elf32_nbsd_le_vec; 794 extern const bfd_target sh_elf32_vxworks_vec; 795 extern const bfd_target sh_elf32_vxworks_le_vec; 796 extern const bfd_target sh_pe_le_vec; 797 extern const bfd_target sh_pei_le_vec; 798 extern const bfd_target sparc_elf32_vec; 799 extern const bfd_target sparc_elf32_sol2_vec; 800 extern const bfd_target sparc_elf32_vxworks_vec; 801 extern const bfd_target sparc_elf64_vec; 802 extern const bfd_target sparc_elf64_fbsd_vec; 803 extern const bfd_target sparc_elf64_sol2_vec; 804 extern const bfd_target spu_elf32_vec; 805 extern const bfd_target sym_vec; 806 extern const bfd_target tic30_aout_vec; 807 extern const bfd_target tic30_coff_vec; 808 extern const bfd_target tic4x_coff0_vec; 809 extern const bfd_target tic4x_coff0_beh_vec; 810 extern const bfd_target tic4x_coff1_vec; 811 extern const bfd_target tic4x_coff1_beh_vec; 812 extern const bfd_target tic4x_coff2_vec; 813 extern const bfd_target tic4x_coff2_beh_vec; 814 extern const bfd_target tic54x_coff0_vec; 815 extern const bfd_target tic54x_coff0_beh_vec; 816 extern const bfd_target tic54x_coff1_vec; 817 extern const bfd_target tic54x_coff1_beh_vec; 818 extern const bfd_target tic54x_coff2_vec; 819 extern const bfd_target tic54x_coff2_beh_vec; 820 extern const bfd_target tic6x_elf32_be_vec; 821 extern const bfd_target tic6x_elf32_le_vec; 822 extern const bfd_target tic6x_elf32_c6000_be_vec; 823 extern const bfd_target tic6x_elf32_c6000_le_vec; 824 extern const bfd_target tic6x_elf32_linux_be_vec; 825 extern const bfd_target tic6x_elf32_linux_le_vec; 826 extern const bfd_target tic80_coff_vec; 827 extern const bfd_target tilegx_elf32_be_vec; 828 extern const bfd_target tilegx_elf32_le_vec; 829 extern const bfd_target tilegx_elf64_be_vec; 830 extern const bfd_target tilegx_elf64_le_vec; 831 extern const bfd_target tilepro_elf32_vec; 832 extern const bfd_target v800_elf32_vec; 833 extern const bfd_target v850_elf32_vec; 834 extern const bfd_target ft32_elf32_vec; 835 extern const bfd_target vax_aout_1knbsd_vec; 836 extern const bfd_target vax_aout_nbsd_vec; 837 extern const bfd_target vax_elf32_vec; 838 extern const bfd_target visium_elf32_vec; 839 extern const bfd_target wasm_vec; 840 extern const bfd_target wasm32_elf32_vec; 841 extern const bfd_target x86_64_coff_vec; 842 extern const bfd_target x86_64_elf32_vec; 843 extern const bfd_target x86_64_elf32_nacl_vec; 844 extern const bfd_target x86_64_elf64_vec; 845 extern const bfd_target x86_64_elf64_cloudabi_vec; 846 extern const bfd_target x86_64_elf64_fbsd_vec; 847 extern const bfd_target x86_64_elf64_nacl_vec; 848 extern const bfd_target x86_64_elf64_sol2_vec; 849 extern const bfd_target x86_64_mach_o_vec; 850 extern const bfd_target x86_64_pe_vec; 851 extern const bfd_target x86_64_pe_be_vec; 852 extern const bfd_target x86_64_pei_vec; 853 extern const bfd_target xc16x_elf32_vec; 854 extern const bfd_target xgate_elf32_vec; 855 extern const bfd_target xstormy16_elf32_vec; 856 extern const bfd_target xtensa_elf32_be_vec; 857 extern const bfd_target xtensa_elf32_le_vec; 858 extern const bfd_target z80_coff_vec; 859 extern const bfd_target z8k_coff_vec; 860 861 /* These are always included. */ 862 extern const bfd_target srec_vec; 863 extern const bfd_target symbolsrec_vec; 864 extern const bfd_target verilog_vec; 865 extern const bfd_target tekhex_vec; 866 extern const bfd_target binary_vec; 867 extern const bfd_target ihex_vec; 868 869 /* All of the xvecs for core files. */ 870 extern const bfd_target core_aix386_vec; 871 extern const bfd_target core_cisco_be_vec; 872 extern const bfd_target core_cisco_le_vec; 873 extern const bfd_target core_hppabsd_vec; 874 extern const bfd_target core_hpux_vec; 875 extern const bfd_target core_irix_vec; 876 extern const bfd_target core_netbsd_vec; 877 extern const bfd_target core_osf_vec; 878 extern const bfd_target core_ptrace_vec; 879 extern const bfd_target core_sco5_vec; 880 extern const bfd_target core_trad_vec; 881 882 static const bfd_target * const _bfd_target_vector[] = 883 { 884 #ifdef SELECT_VECS 885 886 SELECT_VECS, 887 888 #else /* not SELECT_VECS */ 889 890 #ifdef DEFAULT_VECTOR 891 &DEFAULT_VECTOR, 892 #endif 893 /* This list is alphabetized to make it easy to compare 894 with other vector lists -- the decls above and 895 the case statement in configure.ac. 896 Try to keep it in order when adding new targets, and 897 use a name of the form <cpu>_<format>_<other>_<endian>_vec. 898 Note that sorting is done as if _<endian>_vec wasn't present. 899 Vectors that don't compile on all systems, or aren't finished, 900 should have an entry here with #if 0 around it, to show that 901 it wasn't omitted by mistake. */ 902 #ifdef BFD64 903 &aarch64_elf32_be_vec, 904 &aarch64_elf32_le_vec, 905 &aarch64_elf64_be_vec, 906 &aarch64_elf64_be_cloudabi_vec, 907 &aarch64_elf64_le_vec, 908 &aarch64_elf64_le_cloudabi_vec, 909 &aarch64_mach_o_vec, 910 #endif 911 912 #ifdef BFD64 913 &alpha_ecoff_le_vec, 914 &alpha_elf64_vec, 915 &alpha_elf64_fbsd_vec, 916 &alpha_vms_vec, 917 #endif 918 &alpha_vms_lib_txt_vec, 919 920 &am33_elf32_linux_vec, 921 922 #if 0 923 /* Since a.out files lack decent magic numbers, no way to recognize 924 which kind of a.out file it is. */ 925 &aout_vec, 926 #endif 927 928 &arc_elf32_be_vec, 929 &arc_elf32_le_vec, 930 931 &arm_elf32_be_vec, 932 &arm_elf32_le_vec, 933 &arm_elf32_fdpic_be_vec, 934 &arm_elf32_fdpic_le_vec, 935 &arm_elf32_symbian_be_vec, 936 &arm_elf32_symbian_le_vec, 937 &arm_elf32_vxworks_be_vec, 938 &arm_elf32_vxworks_le_vec, 939 &arm_mach_o_vec, 940 &arm_pe_be_vec, 941 &arm_pe_le_vec, 942 &arm_pe_wince_be_vec, 943 &arm_pe_wince_le_vec, 944 &arm_pei_be_vec, 945 &arm_pei_le_vec, 946 &arm_pei_wince_be_vec, 947 &arm_pei_wince_le_vec, 948 949 &avr_elf32_vec, 950 951 &bfin_elf32_vec, 952 &bfin_elf32_fdpic_vec, 953 954 &cr16_elf32_vec, 955 &cr16c_elf32_vec, 956 957 &cris_aout_vec, 958 &cris_elf32_vec, 959 &cris_elf32_us_vec, 960 961 &crx_elf32_vec, 962 963 &d10v_elf32_vec, 964 &d30v_elf32_vec, 965 966 &dlx_elf32_be_vec, 967 968 /* This, and other vectors, may not be used in any *.mt configuration. 969 But that does not mean they are unnecessary. If configured with 970 --enable-targets=all, objdump or gdb should be able to examine 971 the file even if we don't recognize the machine type. */ 972 &elf32_be_vec, 973 &elf32_le_vec, 974 #ifdef BFD64 975 &elf64_be_vec, 976 &elf64_le_vec, 977 #endif 978 979 &epiphany_elf32_vec, 980 981 &fr30_elf32_vec, 982 983 &frv_elf32_vec, 984 &frv_elf32_fdpic_vec, 985 986 &h8300_elf32_vec, 987 &h8300_elf32_linux_vec, 988 989 &hppa_elf32_vec, 990 &hppa_elf32_linux_vec, 991 &hppa_elf32_nbsd_vec, 992 #ifdef BFD64 993 &hppa_elf64_vec, 994 &hppa_elf64_linux_vec, 995 #endif 996 &hppa_som_vec, 997 998 &i386_aout_vec, 999 &i386_aout_bsd_vec, 1000 &i386_aout_lynx_vec, 1001 &i386_coff_vec, 1002 &i386_coff_go32_vec, 1003 &i386_coff_go32stubbed_vec, 1004 &i386_coff_lynx_vec, 1005 &i386_elf32_vec, 1006 &i386_elf32_fbsd_vec, 1007 &i386_elf32_nacl_vec, 1008 &i386_elf32_sol2_vec, 1009 &i386_elf32_vxworks_vec, 1010 &i386_mach_o_vec, 1011 &i386_msdos_vec, 1012 &i386_pe_vec, 1013 &i386_pei_vec, 1014 1015 &iamcu_elf32_vec, 1016 1017 #ifdef BFD64 1018 #if 0 1019 &ia64_elf32_be_vec, 1020 #endif 1021 &ia64_elf32_hpux_be_vec, 1022 &ia64_elf64_be_vec, 1023 &ia64_elf64_le_vec, 1024 &ia64_elf64_hpux_be_vec, 1025 &ia64_elf64_vms_vec, 1026 &ia64_pei_vec, 1027 #endif 1028 1029 &ip2k_elf32_vec, 1030 &iq2000_elf32_vec, 1031 1032 #ifdef BFD64 1033 &k1om_elf64_vec, 1034 &k1om_elf64_fbsd_vec, 1035 &l1om_elf64_vec, 1036 &l1om_elf64_fbsd_vec, 1037 #endif 1038 1039 &lm32_elf32_vec, 1040 1041 &m32c_elf32_vec, 1042 1043 &m32r_elf32_vec, 1044 &m32r_elf32_le_vec, 1045 &m32r_elf32_linux_vec, 1046 &m32r_elf32_linux_le_vec, 1047 1048 &m68hc11_elf32_vec, 1049 &m68hc12_elf32_vec, 1050 1051 &m68k_elf32_vec, 1052 1053 &s12z_elf32_vec, 1054 1055 &mach_o_be_vec, 1056 &mach_o_le_vec, 1057 &mach_o_fat_vec, 1058 1059 &mcore_elf32_be_vec, 1060 &mcore_elf32_le_vec, 1061 &mcore_pe_be_vec, 1062 &mcore_pe_le_vec, 1063 &mcore_pei_be_vec, 1064 &mcore_pei_le_vec, 1065 1066 &mep_elf32_vec, 1067 1068 &metag_elf32_vec, 1069 1070 µblaze_elf32_vec, 1071 1072 &mips_ecoff_be_vec, 1073 &mips_ecoff_le_vec, 1074 &mips_ecoff_bele_vec, 1075 #ifdef BFD64 1076 &mips_elf32_be_vec, 1077 &mips_elf32_le_vec, 1078 &mips_elf32_n_be_vec, 1079 &mips_elf32_n_le_vec, 1080 &mips_elf32_ntrad_be_vec, 1081 &mips_elf32_ntrad_le_vec, 1082 &mips_elf32_ntradfbsd_be_vec, 1083 &mips_elf32_ntradfbsd_le_vec, 1084 &mips_elf32_trad_be_vec, 1085 &mips_elf32_trad_le_vec, 1086 &mips_elf32_tradfbsd_be_vec, 1087 &mips_elf32_tradfbsd_le_vec, 1088 &mips_elf32_vxworks_be_vec, 1089 &mips_elf32_vxworks_le_vec, 1090 &mips_elf64_be_vec, 1091 &mips_elf64_le_vec, 1092 &mips_elf64_trad_be_vec, 1093 &mips_elf64_trad_le_vec, 1094 &mips_elf64_tradfbsd_be_vec, 1095 &mips_elf64_tradfbsd_le_vec, 1096 #endif 1097 1098 #ifdef BFD64 1099 &mmix_elf64_vec, 1100 &mmix_mmo_vec, 1101 #endif 1102 1103 &mn10200_elf32_vec, 1104 &mn10300_elf32_vec, 1105 1106 &moxie_elf32_be_vec, 1107 &moxie_elf32_le_vec, 1108 1109 &msp430_elf32_vec, 1110 &msp430_elf32_ti_vec, 1111 1112 &mt_elf32_vec, 1113 1114 &nds32_elf32_be_vec, 1115 &nds32_elf32_le_vec, 1116 &nds32_elf32_linux_be_vec, 1117 &nds32_elf32_linux_le_vec, 1118 1119 #ifdef BFD64 1120 &nfp_elf64_vec, 1121 #endif 1122 1123 &nios2_elf32_be_vec, 1124 &nios2_elf32_le_vec, 1125 1126 &ns32k_aout_pc532mach_vec, 1127 &ns32k_aout_pc532nbsd_vec, 1128 1129 &or1k_elf32_vec, 1130 1131 &pdp11_aout_vec, 1132 1133 &pef_vec, 1134 &pef_xlib_vec, 1135 1136 &pj_elf32_vec, 1137 &pj_elf32_le_vec, 1138 1139 #if BFD_SUPPORTS_PLUGINS 1140 &plugin_vec, 1141 #endif 1142 1143 &powerpc_boot_vec, 1144 &powerpc_elf32_vec, 1145 &powerpc_elf32_le_vec, 1146 &powerpc_elf32_fbsd_vec, 1147 &powerpc_elf32_vxworks_vec, 1148 #ifdef BFD64 1149 &powerpc_elf64_vec, 1150 &powerpc_elf64_le_vec, 1151 &powerpc_elf64_fbsd_vec, 1152 #endif 1153 &powerpc_pe_vec, 1154 &powerpc_pe_le_vec, 1155 &powerpc_pei_vec, 1156 &powerpc_pei_le_vec, 1157 #if 0 1158 /* This has the same magic number as RS/6000. */ 1159 &powerpc_xcoff_vec, 1160 #endif 1161 1162 &pru_elf32_vec, 1163 1164 #ifdef BFD64 1165 &riscv_elf32_vec, 1166 &riscv_elf64_vec, 1167 #endif 1168 &rl78_elf32_vec, 1169 1170 #ifdef BFD64 1171 &rs6000_xcoff64_vec, 1172 &rs6000_xcoff64_aix_vec, 1173 #endif 1174 &rs6000_xcoff_vec, 1175 1176 &rx_elf32_be_vec, 1177 &rx_elf32_be_ns_vec, 1178 &rx_elf32_le_vec, 1179 1180 &s390_elf32_vec, 1181 #ifdef BFD64 1182 &s390_elf64_vec, 1183 #endif 1184 1185 #ifdef BFD64 1186 &score_elf32_be_vec, 1187 &score_elf32_le_vec, 1188 #endif 1189 1190 &sh_coff_vec, 1191 &sh_coff_le_vec, 1192 &sh_coff_small_vec, 1193 &sh_coff_small_le_vec, 1194 &sh_elf32_vec, 1195 &sh_elf32_le_vec, 1196 &sh_elf32_fdpic_be_vec, 1197 &sh_elf32_fdpic_le_vec, 1198 &sh_elf32_linux_vec, 1199 &sh_elf32_linux_be_vec, 1200 &sh_elf32_nbsd_vec, 1201 &sh_elf32_nbsd_le_vec, 1202 &sh_elf32_vxworks_vec, 1203 &sh_elf32_vxworks_le_vec, 1204 &sh_pe_le_vec, 1205 &sh_pei_le_vec, 1206 1207 &sparc_elf32_vec, 1208 &sparc_elf32_sol2_vec, 1209 &sparc_elf32_vxworks_vec, 1210 #ifdef BFD64 1211 &sparc_elf64_vec, 1212 &sparc_elf64_fbsd_vec, 1213 &sparc_elf64_sol2_vec, 1214 #endif 1215 1216 &spu_elf32_vec, 1217 1218 &sym_vec, 1219 1220 &tic30_aout_vec, 1221 &tic30_coff_vec, 1222 &tic54x_coff0_beh_vec, 1223 &tic54x_coff0_vec, 1224 &tic54x_coff1_beh_vec, 1225 &tic54x_coff1_vec, 1226 &tic54x_coff2_beh_vec, 1227 &tic54x_coff2_vec, 1228 &tic6x_elf32_be_vec, 1229 &tic6x_elf32_le_vec, 1230 &tic80_coff_vec, 1231 1232 &tilegx_elf32_be_vec, 1233 &tilegx_elf32_le_vec, 1234 #ifdef BFD64 1235 &tilegx_elf64_be_vec, 1236 &tilegx_elf64_le_vec, 1237 #endif 1238 &tilepro_elf32_vec, 1239 1240 &ft32_elf32_vec, 1241 1242 &v800_elf32_vec, 1243 &v850_elf32_vec, 1244 1245 &vax_aout_1knbsd_vec, 1246 &vax_aout_nbsd_vec, 1247 &vax_elf32_vec, 1248 1249 &visium_elf32_vec, 1250 1251 &wasm_vec, 1252 &wasm32_elf32_vec, 1253 1254 #ifdef BFD64 1255 &x86_64_coff_vec, 1256 &x86_64_elf32_vec, 1257 &x86_64_elf32_nacl_vec, 1258 &x86_64_elf64_vec, 1259 &x86_64_elf64_cloudabi_vec, 1260 &x86_64_elf64_fbsd_vec, 1261 &x86_64_elf64_nacl_vec, 1262 &x86_64_elf64_sol2_vec, 1263 &x86_64_mach_o_vec, 1264 &x86_64_pe_vec, 1265 &x86_64_pe_be_vec, 1266 &x86_64_pei_vec, 1267 #endif 1268 1269 &xc16x_elf32_vec, 1270 1271 &xgate_elf32_vec, 1272 1273 &xstormy16_elf32_vec, 1274 1275 &xtensa_elf32_be_vec, 1276 &xtensa_elf32_le_vec, 1277 1278 &z80_coff_vec, 1279 1280 &z8k_coff_vec, 1281 #endif /* not SELECT_VECS */ 1282 1283 /* Always support S-records, for convenience. */ 1284 &srec_vec, 1285 &symbolsrec_vec, 1286 /* And verilog. */ 1287 &verilog_vec, 1288 /* And tekhex */ 1289 &tekhex_vec, 1290 /* Likewise for binary output. */ 1291 &binary_vec, 1292 /* Likewise for ihex. */ 1293 &ihex_vec, 1294 1295 /* Add any required traditional-core-file-handler. */ 1296 1297 #ifdef AIX386_CORE 1298 &core_aix386_vec, 1299 #endif 1300 #if 0 1301 /* We don't include cisco_core_*_vec. Although it has a magic number, 1302 the magic number isn't at the beginning of the file, and thus 1303 might spuriously match other kinds of files. */ 1304 &core_cisco_be_vec, 1305 &core_cisco_le_vec, 1306 #endif 1307 #ifdef HPPABSD_CORE 1308 &core_hppabsd_vec, 1309 #endif 1310 #ifdef HPUX_CORE 1311 &core_hpux_vec, 1312 #endif 1313 #ifdef IRIX_CORE 1314 &core_irix_vec, 1315 #endif 1316 #ifdef NETBSD_CORE 1317 &core_netbsd_vec, 1318 #endif 1319 #ifdef OSF_CORE 1320 &core_osf_vec, 1321 #endif 1322 #ifdef PTRACE_CORE 1323 &core_ptrace_vec, 1324 #endif 1325 #ifdef SCO5_CORE 1326 &core_sco5_vec, 1327 #endif 1328 #ifdef TRAD_CORE 1329 &core_trad_vec, 1330 #endif 1331 1332 NULL /* end of list marker */ 1333 }; 1334 const bfd_target * const *bfd_target_vector = _bfd_target_vector; 1335 1336 /* bfd_default_vector[0] contains either the address of the default vector, 1337 if there is one, or zero if there isn't. */ 1338 1339 const bfd_target *bfd_default_vector[] = { 1340 #ifdef DEFAULT_VECTOR 1341 &DEFAULT_VECTOR, 1342 #endif 1343 NULL 1344 }; 1345 1346 /* bfd_associated_vector[] contains the associated target vectors used 1347 to reduce the ambiguity in bfd_check_format_matches. */ 1348 1349 static const bfd_target *_bfd_associated_vector[] = { 1350 #ifdef ASSOCIATED_VECS 1351 ASSOCIATED_VECS, 1352 #endif 1353 NULL 1354 }; 1355 const bfd_target * const *bfd_associated_vector = _bfd_associated_vector; 1356 1357 /* When there is an ambiguous match, bfd_check_format_matches puts the 1358 names of the matching targets in an array. This variable is the maximum 1359 number of entries that the array could possibly need. */ 1360 const size_t _bfd_target_vector_entries = sizeof (_bfd_target_vector)/sizeof (*_bfd_target_vector); 1361 1362 /* This array maps configuration triplets onto BFD vectors. */ 1364 1365 struct targmatch 1366 { 1367 /* The configuration triplet. */ 1368 const char *triplet; 1369 /* The BFD vector. If this is NULL, then the vector is found by 1370 searching forward for the next structure with a non NULL vector 1371 field. */ 1372 const bfd_target *vector; 1373 }; 1374 1375 /* targmatch.h is built by Makefile out of config.bfd. */ 1376 static const struct targmatch bfd_target_match[] = { 1377 #include "targmatch.h" 1378 { NULL, NULL } 1379 }; 1380 1381 /* Find a target vector, given a name or configuration triplet. */ 1382 1383 static const bfd_target * 1384 find_target (const char *name) 1385 { 1386 const bfd_target * const *target; 1387 const struct targmatch *match; 1388 1389 for (target = &bfd_target_vector[0]; *target != NULL; target++) 1390 if (strcmp (name, (*target)->name) == 0) 1391 return *target; 1392 1393 /* If we couldn't match on the exact name, try matching on the 1394 configuration triplet. FIXME: We should run the triplet through 1395 config.sub first, but that is hard. */ 1396 for (match = &bfd_target_match[0]; match->triplet != NULL; match++) 1397 { 1398 if (fnmatch (match->triplet, name, 0) == 0) 1399 { 1400 while (match->vector == NULL) 1401 ++match; 1402 return match->vector; 1403 } 1404 } 1405 1406 bfd_set_error (bfd_error_invalid_target); 1407 return NULL; 1408 } 1409 1410 /* 1411 FUNCTION 1412 bfd_set_default_target 1413 1414 SYNOPSIS 1415 bfd_boolean bfd_set_default_target (const char *name); 1416 1417 DESCRIPTION 1418 Set the default target vector to use when recognizing a BFD. 1419 This takes the name of the target, which may be a BFD target 1420 name or a configuration triplet. 1421 */ 1422 1423 bfd_boolean 1424 bfd_set_default_target (const char *name) 1425 { 1426 const bfd_target *target; 1427 1428 if (bfd_default_vector[0] != NULL 1429 && strcmp (name, bfd_default_vector[0]->name) == 0) 1430 return TRUE; 1431 1432 target = find_target (name); 1433 if (target == NULL) 1434 return FALSE; 1435 1436 bfd_default_vector[0] = target; 1437 return TRUE; 1438 } 1439 1440 /* 1441 FUNCTION 1442 bfd_find_target 1443 1444 SYNOPSIS 1445 const bfd_target *bfd_find_target (const char *target_name, bfd *abfd); 1446 1447 DESCRIPTION 1448 Return a pointer to the transfer vector for the object target 1449 named @var{target_name}. If @var{target_name} is <<NULL>>, 1450 choose the one in the environment variable <<GNUTARGET>>; if 1451 that is null or not defined, then choose the first entry in the 1452 target list. Passing in the string "default" or setting the 1453 environment variable to "default" will cause the first entry in 1454 the target list to be returned, and "target_defaulted" will be 1455 set in the BFD if @var{abfd} isn't <<NULL>>. This causes 1456 <<bfd_check_format>> to loop over all the targets to find the 1457 one that matches the file being read. 1458 */ 1459 1460 const bfd_target * 1461 bfd_find_target (const char *target_name, bfd *abfd) 1462 { 1463 const char *targname; 1464 const bfd_target *target; 1465 1466 if (target_name != NULL) 1467 targname = target_name; 1468 else 1469 targname = getenv ("GNUTARGET"); 1470 1471 /* This is safe; the vector cannot be null. */ 1472 if (targname == NULL || strcmp (targname, "default") == 0) 1473 { 1474 if (bfd_default_vector[0] != NULL) 1475 target = bfd_default_vector[0]; 1476 else 1477 target = bfd_target_vector[0]; 1478 if (abfd) 1479 { 1480 abfd->xvec = target; 1481 abfd->target_defaulted = TRUE; 1482 } 1483 return target; 1484 } 1485 1486 if (abfd) 1487 abfd->target_defaulted = FALSE; 1488 1489 target = find_target (targname); 1490 if (target == NULL) 1491 return NULL; 1492 1493 if (abfd) 1494 abfd->xvec = target; 1495 return target; 1496 } 1497 1498 /* Helper function for bfd_get_target_info to determine the target's 1499 architecture. This method handles bfd internal target names as 1500 tuples and triplets. */ 1501 static bfd_boolean 1502 _bfd_find_arch_match (const char *tname, const char **arch, 1503 const char **def_target_arch) 1504 { 1505 if (!arch) 1506 return FALSE; 1507 1508 while (*arch != NULL) 1509 { 1510 const char *in_a = strstr (*arch, tname); 1511 char end_ch = (in_a ? in_a[strlen (tname)] : 0); 1512 1513 if (in_a && (in_a == *arch || in_a[-1] == ':') 1514 && end_ch == 0) 1515 { 1516 *def_target_arch = *arch; 1517 return TRUE; 1518 } 1519 arch++; 1520 } 1521 return FALSE; 1522 } 1523 1524 /* 1525 FUNCTION 1526 bfd_get_target_info 1527 SYNOPSIS 1528 const bfd_target *bfd_get_target_info (const char *target_name, 1529 bfd *abfd, 1530 bfd_boolean *is_bigendian, 1531 int *underscoring, 1532 const char **def_target_arch); 1533 DESCRIPTION 1534 Return a pointer to the transfer vector for the object target 1535 named @var{target_name}. If @var{target_name} is <<NULL>>, 1536 choose the one in the environment variable <<GNUTARGET>>; if 1537 that is null or not defined, then choose the first entry in the 1538 target list. Passing in the string "default" or setting the 1539 environment variable to "default" will cause the first entry in 1540 the target list to be returned, and "target_defaulted" will be 1541 set in the BFD if @var{abfd} isn't <<NULL>>. This causes 1542 <<bfd_check_format>> to loop over all the targets to find the 1543 one that matches the file being read. 1544 If @var{is_bigendian} is not <<NULL>>, then set this value to target's 1545 endian mode. True for big-endian, FALSE for little-endian or for 1546 invalid target. 1547 If @var{underscoring} is not <<NULL>>, then set this value to target's 1548 underscoring mode. Zero for none-underscoring, -1 for invalid target, 1549 else the value of target vector's symbol underscoring. 1550 If @var{def_target_arch} is not <<NULL>>, then set it to the architecture 1551 string specified by the target_name. 1552 */ 1553 const bfd_target * 1554 bfd_get_target_info (const char *target_name, bfd *abfd, 1555 bfd_boolean *is_bigendian, 1556 int *underscoring, const char **def_target_arch) 1557 { 1558 const bfd_target *target_vec; 1559 1560 if (is_bigendian) 1561 *is_bigendian = FALSE; 1562 if (underscoring) 1563 *underscoring = -1; 1564 if (def_target_arch) 1565 *def_target_arch = NULL; 1566 target_vec = bfd_find_target (target_name, abfd); 1567 if (! target_vec) 1568 return NULL; 1569 if (is_bigendian) 1570 *is_bigendian = ((target_vec->byteorder == BFD_ENDIAN_BIG) ? TRUE 1571 : FALSE); 1572 if (underscoring) 1573 *underscoring = ((int) target_vec->symbol_leading_char) & 0xff; 1574 1575 if (def_target_arch) 1576 { 1577 const char *tname = target_vec->name; 1578 const char **arches = bfd_arch_list (); 1579 1580 if (arches && tname) 1581 { 1582 char *hyp = strchr (tname, '-'); 1583 1584 if (hyp != NULL) 1585 { 1586 tname = ++hyp; 1587 1588 /* Make sure we detect architecture names 1589 for triplets like "pe-arm-wince-little". */ 1590 if (!_bfd_find_arch_match (tname, arches, def_target_arch)) 1591 { 1592 char new_tname[50]; 1593 1594 strcpy (new_tname, hyp); 1595 while ((hyp = strrchr (new_tname, '-')) != NULL) 1596 { 1597 *hyp = 0; 1598 if (_bfd_find_arch_match (new_tname, arches, 1599 def_target_arch)) 1600 break; 1601 } 1602 } 1603 } 1604 else 1605 _bfd_find_arch_match (tname, arches, def_target_arch); 1606 } 1607 1608 if (arches) 1609 free (arches); 1610 } 1611 return target_vec; 1612 } 1613 1614 /* 1615 FUNCTION 1616 bfd_target_list 1617 1618 SYNOPSIS 1619 const char ** bfd_target_list (void); 1620 1621 DESCRIPTION 1622 Return a freshly malloced NULL-terminated 1623 vector of the names of all the valid BFD targets. Do not 1624 modify the names. 1625 1626 */ 1627 1628 const char ** 1629 bfd_target_list (void) 1630 { 1631 int vec_length = 0; 1632 bfd_size_type amt; 1633 const bfd_target * const *target; 1634 const char **name_list, **name_ptr; 1635 1636 for (target = &bfd_target_vector[0]; *target != NULL; target++) 1637 vec_length++; 1638 1639 amt = (vec_length + 1) * sizeof (char **); 1640 name_ptr = name_list = (const char **) bfd_malloc (amt); 1641 1642 if (name_list == NULL) 1643 return NULL; 1644 1645 for (target = &bfd_target_vector[0]; *target != NULL; target++) 1646 if (target == &bfd_target_vector[0] 1647 || *target != bfd_target_vector[0]) 1648 *name_ptr++ = (*target)->name; 1649 1650 *name_ptr = NULL; 1651 return name_list; 1652 } 1653 1654 /* 1655 FUNCTION 1656 bfd_iterate_over_targets 1657 1658 SYNOPSIS 1659 const bfd_target *bfd_iterate_over_targets 1660 (int (*func) (const bfd_target *, void *), 1661 void *data); 1662 1663 DESCRIPTION 1664 Call @var{func} for each target in the list of BFD target 1665 vectors, passing @var{data} to @var{func}. Stop iterating if 1666 @var{func} returns a non-zero result, and return that target 1667 vector. Return NULL if @var{func} always returns zero. 1668 */ 1669 1670 const bfd_target * 1671 bfd_iterate_over_targets (int (*func) (const bfd_target *, void *), 1672 void *data) 1673 { 1674 const bfd_target *const *target; 1675 1676 for (target = bfd_target_vector; *target != NULL; ++target) 1677 if (func (*target, data)) 1678 return *target; 1679 1680 return NULL; 1681 } 1682 1683 /* 1684 FUNCTION 1685 bfd_flavour_name 1686 1687 SYNOPSIS 1688 const char *bfd_flavour_name (enum bfd_flavour flavour); 1689 1690 DESCRIPTION 1691 Return the string form of @var{flavour}. 1692 */ 1693 1694 const char * 1695 bfd_flavour_name (enum bfd_flavour flavour) 1696 { 1697 switch (flavour) 1698 { 1699 case bfd_target_unknown_flavour: return "unknown file format"; 1700 case bfd_target_aout_flavour: return "a.out"; 1701 case bfd_target_coff_flavour: return "COFF"; 1702 case bfd_target_ecoff_flavour: return "ECOFF"; 1703 case bfd_target_xcoff_flavour: return "XCOFF"; 1704 case bfd_target_elf_flavour: return "ELF"; 1705 case bfd_target_tekhex_flavour: return "Tekhex"; 1706 case bfd_target_srec_flavour: return "Srec"; 1707 case bfd_target_verilog_flavour: return "Verilog"; 1708 case bfd_target_ihex_flavour: return "Ihex"; 1709 case bfd_target_som_flavour: return "SOM"; 1710 case bfd_target_os9k_flavour: return "OS9K"; 1711 case bfd_target_versados_flavour: return "Versados"; 1712 case bfd_target_msdos_flavour: return "MSDOS"; 1713 case bfd_target_ovax_flavour: return "Ovax"; 1714 case bfd_target_evax_flavour: return "Evax"; 1715 case bfd_target_mmo_flavour: return "mmo"; 1716 case bfd_target_mach_o_flavour: return "MACH_O"; 1717 case bfd_target_pef_flavour: return "PEF"; 1718 case bfd_target_pef_xlib_flavour: return "PEF_XLIB"; 1719 case bfd_target_sym_flavour: return "SYM"; 1720 /* There is no "default" case here so that -Wswitch (part of -Wall) 1721 catches missing entries. */ 1722 } 1723 1724 abort (); 1725 } 1726
Indexes created Wed Mar 25 00:23:37 UTC 2026