1 /* libbfd.h -- Declarations used by bfd library *implementation*. 2 (This include file is not for users of the library.) 3 4 Copyright (C) 1990-2015 Free Software Foundation, Inc. 5 6 Written by Cygnus Support. 7 8 This file is part of BFD, the Binary File Descriptor library. 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 3 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 23 MA 02110-1301, USA. */ 24 25 #include "hashtab.h" 26 27 /* Align an address upward to a boundary, expressed as a number of bytes. 28 E.g. align to an 8-byte boundary with argument of 8. Take care never 29 to wrap around if the address is within boundary-1 of the end of the 30 address space. */ 31 #define BFD_ALIGN(this, boundary) \ 32 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \ 33 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \ 34 : ~ (bfd_vma) 0) 35 36 /* If you want to read and write large blocks, you might want to do it 37 in quanta of this amount */ 38 #define DEFAULT_BUFFERSIZE 8192 39 40 /* Set a tdata field. Can't use the other macros for this, since they 41 do casts, and casting to the left of assignment isn't portable. */ 42 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v)) 43 44 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points 45 to an instance of this structure. */ 46 47 struct bfd_in_memory 48 { 49 /* Size of buffer. */ 50 bfd_size_type size; 51 /* Buffer holding contents of BFD. */ 52 bfd_byte *buffer; 53 }; 54 55 struct section_hash_entry 56 { 57 struct bfd_hash_entry root; 58 asection section; 59 }; 60 61 /* tdata for an archive. For an input archive, cache 62 needs to be free()'d. For an output archive, symdefs do. */ 63 64 struct artdata 65 { 66 file_ptr first_file_filepos; 67 /* Speed up searching the armap */ 68 htab_t cache; 69 bfd *archive_head; /* Only interesting in output routines. */ 70 carsym *symdefs; /* The symdef entries. */ 71 symindex symdef_count; /* How many there are. */ 72 char *extended_names; /* Clever intel extension. */ 73 bfd_size_type extended_names_size; /* Size of extended names. */ 74 /* When more compilers are standard C, this can be a time_t. */ 75 long armap_timestamp; /* Timestamp value written into armap. 76 This is used for BSD archives to check 77 that the timestamp is recent enough 78 for the BSD linker to not complain, 79 just before we finish writing an 80 archive. */ 81 file_ptr armap_datepos; /* Position within archive to seek to 82 rewrite the date field. */ 83 void *tdata; /* Backend specific information. */ 84 }; 85 86 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data) 87 88 /* Goes in bfd's arelt_data slot */ 89 struct areltdata 90 { 91 char * arch_header; /* It's actually a string. */ 92 bfd_size_type parsed_size; /* Octets of filesize not including ar_hdr. */ 93 bfd_size_type extra_size; /* BSD4.4: extra bytes after the header. */ 94 char *filename; /* Null-terminated. */ 95 file_ptr origin; /* For element of a thin archive. */ 96 void *parent_cache; /* Where and how to find this member. */ 97 file_ptr key; 98 }; 99 100 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size) 101 102 extern void *bfd_malloc 103 (bfd_size_type); 104 extern void *bfd_realloc 105 (void *, bfd_size_type); 106 extern void *bfd_realloc_or_free 107 (void *, bfd_size_type); 108 extern void *bfd_zmalloc 109 (bfd_size_type); 110 extern void *bfd_malloc2 111 (bfd_size_type, bfd_size_type); 112 extern void *bfd_realloc2 113 (void *, bfd_size_type, bfd_size_type); 114 extern void *bfd_zmalloc2 115 (bfd_size_type, bfd_size_type); 116 117 extern void _bfd_default_error_handler (const char *s, ...); 118 extern bfd_error_handler_type _bfd_error_handler; 119 extern bfd_assert_handler_type _bfd_assert_handler; 120 121 /* These routines allocate and free things on the BFD's objalloc. */ 122 123 extern void *bfd_alloc2 124 (bfd *, bfd_size_type, bfd_size_type); 125 extern void *bfd_zalloc2 126 (bfd *, bfd_size_type, bfd_size_type); 127 extern void bfd_release 128 (bfd *, void *); 129 130 bfd * _bfd_create_empty_archive_element_shell 131 (bfd *obfd); 132 bfd * _bfd_look_for_bfd_in_cache 133 (bfd *, file_ptr); 134 bfd_boolean _bfd_add_bfd_to_archive_cache 135 (bfd *, file_ptr, bfd *); 136 bfd_boolean _bfd_generic_mkarchive 137 (bfd *abfd); 138 char *_bfd_append_relative_path 139 (bfd *arch, char *elt_name); 140 const bfd_target *bfd_generic_archive_p 141 (bfd *abfd); 142 bfd_boolean bfd_slurp_armap 143 (bfd *abfd); 144 bfd_boolean bfd_slurp_bsd_armap_f2 145 (bfd *abfd); 146 #define bfd_slurp_bsd_armap bfd_slurp_armap 147 #define bfd_slurp_coff_armap bfd_slurp_armap 148 bfd_boolean _bfd_slurp_extended_name_table 149 (bfd *abfd); 150 extern bfd_boolean _bfd_construct_extended_name_table 151 (bfd *, bfd_boolean, char **, bfd_size_type *); 152 bfd_boolean _bfd_write_archive_contents 153 (bfd *abfd); 154 bfd_boolean _bfd_compute_and_write_armap 155 (bfd *, unsigned int elength); 156 bfd *_bfd_get_elt_at_filepos 157 (bfd *archive, file_ptr filepos); 158 extern bfd *_bfd_generic_get_elt_at_index 159 (bfd *, symindex); 160 bfd * _bfd_new_bfd 161 (void); 162 bfd_boolean _bfd_free_cached_info 163 (bfd *); 164 165 bfd_boolean bfd_false 166 (bfd *ignore); 167 bfd_boolean bfd_true 168 (bfd *ignore); 169 void *bfd_nullvoidptr 170 (bfd *ignore); 171 int bfd_0 172 (bfd *ignore); 173 unsigned int bfd_0u 174 (bfd *ignore); 175 long bfd_0l 176 (bfd *ignore); 177 long _bfd_n1 178 (bfd *ignore); 179 void bfd_void 180 (bfd *ignore); 181 182 bfd *_bfd_new_bfd_contained_in 183 (bfd *); 184 const bfd_target *_bfd_dummy_target 185 (bfd *abfd); 186 187 void bfd_dont_truncate_arname 188 (bfd *abfd, const char *filename, char *hdr); 189 void bfd_bsd_truncate_arname 190 (bfd *abfd, const char *filename, char *hdr); 191 void bfd_gnu_truncate_arname 192 (bfd *abfd, const char *filename, char *hdr); 193 194 bfd_boolean bsd_write_armap 195 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count, 196 int stridx); 197 198 bfd_boolean coff_write_armap 199 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count, 200 int stridx); 201 202 extern void *_bfd_generic_read_ar_hdr 203 (bfd *); 204 extern void _bfd_ar_spacepad 205 (char *, size_t, const char *, long); 206 extern bfd_boolean _bfd_ar_sizepad 207 (char *, size_t, bfd_size_type); 208 209 extern void *_bfd_generic_read_ar_hdr_mag 210 (bfd *, const char *); 211 212 extern bfd_boolean _bfd_generic_write_ar_hdr 213 (bfd *, bfd *); 214 215 extern bfd_boolean _bfd_bsd44_write_ar_hdr 216 (bfd *, bfd *); 217 218 bfd * bfd_generic_openr_next_archived_file 219 (bfd *archive, bfd *last_file); 220 221 int bfd_generic_stat_arch_elt 222 (bfd *, struct stat *); 223 224 #define _bfd_read_ar_hdr(abfd) \ 225 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd)) 226 #define _bfd_write_ar_hdr(archive, abfd) \ 227 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd)) 228 229 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use 230 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */ 231 232 #define _bfd_generic_close_and_cleanup _bfd_archive_close_and_cleanup 233 extern bfd_boolean _bfd_archive_close_and_cleanup 234 (bfd *); 235 #define _bfd_generic_bfd_free_cached_info bfd_true 236 extern bfd_boolean _bfd_generic_new_section_hook 237 (bfd *, asection *); 238 extern bfd_boolean _bfd_generic_get_section_contents 239 (bfd *, asection *, void *, file_ptr, bfd_size_type); 240 extern bfd_boolean _bfd_generic_get_section_contents_in_window 241 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type); 242 243 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use 244 BFD_JUMP_TABLE_COPY (_bfd_generic). */ 245 246 #define _bfd_generic_bfd_copy_private_bfd_data \ 247 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 248 #define _bfd_generic_bfd_merge_private_bfd_data \ 249 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 250 #define _bfd_generic_bfd_set_private_flags \ 251 ((bfd_boolean (*) (bfd *, flagword)) bfd_true) 252 #define _bfd_generic_bfd_copy_private_section_data \ 253 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true) 254 #define _bfd_generic_bfd_copy_private_symbol_data \ 255 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true) 256 #define _bfd_generic_bfd_copy_private_header_data \ 257 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 258 #define _bfd_generic_bfd_print_private_bfd_data \ 259 ((bfd_boolean (*) (bfd *, void *)) bfd_true) 260 261 extern bfd_boolean _bfd_generic_init_private_section_data 262 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *); 263 264 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file 265 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */ 266 267 extern char *_bfd_nocore_core_file_failing_command 268 (bfd *); 269 extern int _bfd_nocore_core_file_failing_signal 270 (bfd *); 271 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p 272 (bfd *, bfd *); 273 extern int _bfd_nocore_core_file_pid 274 (bfd *); 275 276 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive 277 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */ 278 279 #define _bfd_noarchive_slurp_armap bfd_false 280 #define _bfd_noarchive_slurp_extended_name_table bfd_false 281 #define _bfd_noarchive_construct_extended_name_table \ 282 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \ 283 bfd_false) 284 #define _bfd_noarchive_truncate_arname \ 285 ((void (*) (bfd *, const char *, char *)) bfd_void) 286 #define _bfd_noarchive_write_armap \ 287 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \ 288 bfd_false) 289 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr 290 #define _bfd_noarchive_write_ar_hdr \ 291 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false) 292 #define _bfd_noarchive_openr_next_archived_file \ 293 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr) 294 #define _bfd_noarchive_get_elt_at_index \ 295 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr) 296 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt 297 #define _bfd_noarchive_update_armap_timestamp bfd_false 298 299 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style 300 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */ 301 302 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap 303 #define _bfd_archive_bsd_slurp_extended_name_table \ 304 _bfd_slurp_extended_name_table 305 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table 306 (bfd *, char **, bfd_size_type *, const char **); 307 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname 308 #define _bfd_archive_bsd_write_armap bsd_write_armap 309 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr 310 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr 311 #define _bfd_archive_bsd_openr_next_archived_file \ 312 bfd_generic_openr_next_archived_file 313 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index 314 #define _bfd_archive_bsd_generic_stat_arch_elt \ 315 bfd_generic_stat_arch_elt 316 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp 317 (bfd *); 318 319 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style 320 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */ 321 322 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap 323 #define _bfd_archive_coff_slurp_extended_name_table \ 324 _bfd_slurp_extended_name_table 325 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table 326 (bfd *, char **, bfd_size_type *, const char **); 327 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname 328 #define _bfd_archive_coff_write_armap coff_write_armap 329 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr 330 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr 331 #define _bfd_archive_coff_openr_next_archived_file \ 332 bfd_generic_openr_next_archived_file 333 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index 334 #define _bfd_archive_coff_generic_stat_arch_elt \ 335 bfd_generic_stat_arch_elt 336 #define _bfd_archive_coff_update_armap_timestamp bfd_true 337 338 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style 339 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */ 340 341 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap 342 #define _bfd_archive_bsd44_slurp_extended_name_table \ 343 _bfd_slurp_extended_name_table 344 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table 345 (bfd *, char **, bfd_size_type *, const char **); 346 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname 347 #define _bfd_archive_bsd44_write_armap bsd_write_armap 348 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr 349 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr 350 #define _bfd_archive_bsd44_openr_next_archived_file \ 351 bfd_generic_openr_next_archived_file 352 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index 353 #define _bfd_archive_bsd44_generic_stat_arch_elt \ 354 bfd_generic_stat_arch_elt 355 #define _bfd_archive_bsd44_update_armap_timestamp \ 356 _bfd_archive_bsd_update_armap_timestamp 357 358 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style 359 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them 360 are irrelevant and never called, so defined as NULL. */ 361 362 extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch); 363 #define _bfd_vms_lib_slurp_armap NULL 364 #define _bfd_vms_lib_slurp_extended_name_table NULL 365 #define _bfd_vms_lib_construct_extended_name_table NULL 366 #define _bfd_vms_lib_truncate_arname NULL 367 #define _bfd_vms_lib_write_armap NULL 368 #define _bfd_vms_lib_read_ar_hdr NULL 369 #define _bfd_vms_lib_write_ar_hdr NULL 370 extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *); 371 extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex); 372 extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *); 373 #define _bfd_vms_lib_update_armap_timestamp bfd_true 374 375 /* Extra routines for VMS style archives. */ 376 377 extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *); 378 extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *); 379 extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd); 380 extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd); 381 extern bfd_boolean _bfd_vms_lib_alpha_mkarchive (bfd *abfd); 382 extern bfd_boolean _bfd_vms_lib_ia64_mkarchive (bfd *abfd); 383 384 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol 385 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */ 386 387 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1 388 #define _bfd_nosymbols_canonicalize_symtab \ 389 ((long (*) (bfd *, asymbol **)) _bfd_n1) 390 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol 391 #define _bfd_nosymbols_print_symbol \ 392 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void) 393 #define _bfd_nosymbols_get_symbol_info \ 394 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void) 395 #define _bfd_nosymbols_get_symbol_version_string \ 396 ((const char *(*) (bfd *, asymbol *, bfd_boolean *)) bfd_nullvoidptr) 397 #define _bfd_nosymbols_bfd_is_local_label_name \ 398 ((bfd_boolean (*) (bfd *, const char *)) bfd_false) 399 #define _bfd_nosymbols_bfd_is_target_special_symbol \ 400 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 401 #define _bfd_nosymbols_get_lineno \ 402 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr) 403 #define _bfd_nosymbols_find_nearest_line \ 404 ((bfd_boolean (*) (bfd *, asymbol **, asection *, bfd_vma, \ 405 const char **, const char **, unsigned int *, \ 406 unsigned int *)) \ 407 bfd_false) 408 #define _bfd_nosymbols_find_line \ 409 ((bfd_boolean (*) (bfd *, asymbol **, asymbol *, \ 410 const char **, unsigned int *)) \ 411 bfd_false) 412 #define _bfd_nosymbols_find_inliner_info \ 413 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \ 414 bfd_false) 415 #define _bfd_nosymbols_bfd_make_debug_symbol \ 416 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 417 #define _bfd_nosymbols_read_minisymbols \ 418 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1) 419 #define _bfd_nosymbols_minisymbol_to_symbol \ 420 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \ 421 bfd_nullvoidptr) 422 423 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc 424 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */ 425 426 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *); 427 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *, 428 arelent **, asymbol **); 429 #define _bfd_norelocs_bfd_reloc_type_lookup \ 430 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr) 431 #define _bfd_norelocs_bfd_reloc_name_lookup \ 432 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr) 433 434 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not 435 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */ 436 437 #define _bfd_nowrite_set_arch_mach \ 438 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \ 439 bfd_false) 440 #define _bfd_nowrite_set_section_contents \ 441 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \ 442 bfd_false) 443 444 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use 445 BFD_JUMP_TABLE_WRITE (_bfd_generic). */ 446 447 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach 448 extern bfd_boolean _bfd_generic_set_section_contents 449 (bfd *, asection *, const void *, file_ptr, bfd_size_type); 450 451 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not 452 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */ 453 454 #define _bfd_nolink_sizeof_headers \ 455 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0) 456 #define _bfd_nolink_bfd_get_relocated_section_contents \ 457 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \ 458 bfd_byte *, bfd_boolean, asymbol **)) \ 459 bfd_nullvoidptr) 460 #define _bfd_nolink_bfd_relax_section \ 461 ((bfd_boolean (*) \ 462 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \ 463 bfd_false) 464 #define _bfd_nolink_bfd_gc_sections \ 465 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 466 bfd_false) 467 #define _bfd_nolink_bfd_lookup_section_flags \ 468 ((bfd_boolean (*) (struct bfd_link_info *, struct flag_info *, asection *)) \ 469 bfd_0) 470 #define _bfd_nolink_bfd_merge_sections \ 471 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 472 bfd_false) 473 #define _bfd_nolink_bfd_is_group_section \ 474 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \ 475 bfd_false) 476 #define _bfd_nolink_bfd_discard_group \ 477 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \ 478 bfd_false) 479 #define _bfd_nolink_bfd_link_hash_table_create \ 480 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr) 481 #define _bfd_nolink_bfd_link_add_symbols \ 482 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 483 #define _bfd_nolink_bfd_link_just_syms \ 484 ((void (*) (asection *, struct bfd_link_info *)) bfd_void) 485 #define _bfd_nolink_bfd_copy_link_hash_symbol_type \ 486 ((void (*) (bfd *, struct bfd_link_hash_entry *, \ 487 struct bfd_link_hash_entry *)) bfd_void) 488 #define _bfd_nolink_bfd_final_link \ 489 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 490 #define _bfd_nolink_bfd_link_split_section \ 491 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false) 492 #define _bfd_nolink_section_already_linked \ 493 ((bfd_boolean (*) (bfd *, asection *, \ 494 struct bfd_link_info *)) bfd_false) 495 #define _bfd_nolink_bfd_define_common_symbol \ 496 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \ 497 struct bfd_link_hash_entry *)) bfd_false) 498 499 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not 500 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC 501 (_bfd_nodynamic). */ 502 503 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1 504 #define _bfd_nodynamic_canonicalize_dynamic_symtab \ 505 ((long (*) (bfd *, asymbol **)) _bfd_n1) 506 #define _bfd_nodynamic_get_synthetic_symtab \ 507 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1) 508 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1 509 #define _bfd_nodynamic_canonicalize_dynamic_reloc \ 510 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1) 511 512 /* Generic routine to determine of the given symbol is a local 513 label. */ 514 extern bfd_boolean bfd_generic_is_local_label_name 515 (bfd *, const char *); 516 517 /* Generic minisymbol routines. */ 518 extern long _bfd_generic_read_minisymbols 519 (bfd *, bfd_boolean, void **, unsigned int *); 520 extern asymbol *_bfd_generic_minisymbol_to_symbol 521 (bfd *, bfd_boolean, const void *, asymbol *); 522 523 /* Find the nearest line using .stab/.stabstr sections. */ 524 extern bfd_boolean _bfd_stab_section_find_nearest_line 525 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *, 526 const char **, const char **, unsigned int *, void **); 527 528 /* Find the nearest line using DWARF 1 debugging information. */ 529 extern bfd_boolean _bfd_dwarf1_find_nearest_line 530 (bfd *, asymbol **, asection *, bfd_vma, 531 const char **, const char **, unsigned int *); 532 533 struct dwarf_debug_section 534 { 535 const char *uncompressed_name; 536 const char *compressed_name; 537 }; 538 539 /* Map of uncompressed DWARF debug section name to compressed one. It 540 is terminated by NULL uncompressed_name. */ 541 542 extern const struct dwarf_debug_section dwarf_debug_sections[]; 543 544 /* Find the nearest line using DWARF 2 debugging information. */ 545 extern bfd_boolean _bfd_dwarf2_find_nearest_line 546 (bfd *, asymbol **, asymbol *, asection *, bfd_vma, 547 const char **, const char **, unsigned int *, unsigned int *, 548 const struct dwarf_debug_section *, unsigned int, void **); 549 550 /* Find inliner info after calling bfd_find_nearest_line. */ 551 extern bfd_boolean _bfd_dwarf2_find_inliner_info 552 (bfd *, const char **, const char **, unsigned int *, void **); 553 554 /* Read DWARF 2 debugging information. */ 555 extern bfd_boolean _bfd_dwarf2_slurp_debug_info 556 (bfd *, bfd *, const struct dwarf_debug_section *, asymbol **, void **, 557 bfd_boolean); 558 559 /* Clean up the data used to handle DWARF 2 debugging information. */ 560 extern void _bfd_dwarf2_cleanup_debug_info 561 (bfd *, void **); 562 563 /* Create a new section entry. */ 564 extern struct bfd_hash_entry *bfd_section_hash_newfunc 565 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 566 567 /* A routine to create entries for a bfd_link_hash_table. */ 568 extern struct bfd_hash_entry *_bfd_link_hash_newfunc 569 (struct bfd_hash_entry *entry, struct bfd_hash_table *table, 570 const char *string); 571 572 /* Initialize a bfd_link_hash_table. */ 573 extern bfd_boolean _bfd_link_hash_table_init 574 (struct bfd_link_hash_table *, bfd *, 575 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 576 struct bfd_hash_table *, 577 const char *), 578 unsigned int); 579 580 /* Generic link hash table creation routine. */ 581 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create 582 (bfd *); 583 584 /* Generic link hash table destruction routine. */ 585 extern void _bfd_generic_link_hash_table_free 586 (bfd *); 587 588 /* Generic add symbol routine. */ 589 extern bfd_boolean _bfd_generic_link_add_symbols 590 (bfd *, struct bfd_link_info *); 591 592 /* Generic add symbol routine. This version is used by targets for 593 which the linker must collect constructors and destructors by name, 594 as the collect2 program does. */ 595 extern bfd_boolean _bfd_generic_link_add_symbols_collect 596 (bfd *, struct bfd_link_info *); 597 598 /* Generic archive add symbol routine. */ 599 extern bfd_boolean _bfd_generic_link_add_archive_symbols 600 (bfd *, struct bfd_link_info *, 601 bfd_boolean (*) (bfd *, struct bfd_link_info *, 602 struct bfd_link_hash_entry *, const char *, 603 bfd_boolean *)); 604 605 /* Forward declaration to avoid prototype errors. */ 606 typedef struct bfd_link_hash_entry _bfd_link_hash_entry; 607 608 /* Generic routine to add a single symbol. */ 609 extern bfd_boolean _bfd_generic_link_add_one_symbol 610 (struct bfd_link_info *, bfd *, const char *name, flagword, 611 asection *, bfd_vma, const char *, bfd_boolean copy, 612 bfd_boolean constructor, struct bfd_link_hash_entry **); 613 614 /* Generic routine to mark section as supplying symbols only. */ 615 extern void _bfd_generic_link_just_syms 616 (asection *, struct bfd_link_info *); 617 618 /* Generic routine that does nothing. */ 619 extern void _bfd_generic_copy_link_hash_symbol_type 620 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *); 621 622 /* Generic link routine. */ 623 extern bfd_boolean _bfd_generic_final_link 624 (bfd *, struct bfd_link_info *); 625 626 extern bfd_boolean _bfd_generic_link_split_section 627 (bfd *, struct bfd_section *); 628 629 extern bfd_boolean _bfd_generic_section_already_linked 630 (bfd *, asection *, struct bfd_link_info *); 631 632 /* Generic reloc_link_order processing routine. */ 633 extern bfd_boolean _bfd_generic_reloc_link_order 634 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 635 636 /* Default link order processing routine. */ 637 extern bfd_boolean _bfd_default_link_order 638 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 639 640 /* Count the number of reloc entries in a link order list. */ 641 extern unsigned int _bfd_count_link_order_relocs 642 (struct bfd_link_order *); 643 644 /* Final link relocation routine. */ 645 extern bfd_reloc_status_type _bfd_final_link_relocate 646 (reloc_howto_type *, bfd *, asection *, bfd_byte *, 647 bfd_vma, bfd_vma, bfd_vma); 648 649 /* Relocate a particular location by a howto and a value. */ 650 extern bfd_reloc_status_type _bfd_relocate_contents 651 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *); 652 653 /* Clear a given location using a given howto. */ 654 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd, 655 asection *input_section, bfd_byte *location); 656 657 /* Link stabs in sections in the first pass. */ 658 659 extern bfd_boolean _bfd_link_section_stabs 660 (bfd *, struct stab_info *, asection *, asection *, void **, 661 bfd_size_type *); 662 663 /* Eliminate stabs for discarded functions and symbols. */ 664 extern bfd_boolean _bfd_discard_section_stabs 665 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *); 666 667 /* Write out the .stab section when linking stabs in sections. */ 668 669 extern bfd_boolean _bfd_write_section_stabs 670 (bfd *, struct stab_info *, asection *, void **, bfd_byte *); 671 672 /* Write out the .stabstr string table when linking stabs in sections. */ 673 674 extern bfd_boolean _bfd_write_stab_strings 675 (bfd *, struct stab_info *); 676 677 /* Find an offset within a .stab section when linking stabs in 678 sections. */ 679 680 extern bfd_vma _bfd_stab_section_offset 681 (asection *, void *, bfd_vma); 682 683 /* Register a SEC_MERGE section as a candidate for merging. */ 684 685 extern bfd_boolean _bfd_add_merge_section 686 (bfd *, void **, asection *, void **); 687 688 /* Attempt to merge SEC_MERGE sections. */ 689 690 extern bfd_boolean _bfd_merge_sections 691 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *)); 692 693 /* Write out a merged section. */ 694 695 extern bfd_boolean _bfd_write_merged_section 696 (bfd *, asection *, void *); 697 698 /* Find an offset within a modified SEC_MERGE section. */ 699 700 extern bfd_vma _bfd_merged_section_offset 701 (bfd *, asection **, void *, bfd_vma); 702 703 /* Tidy up when done. */ 704 705 extern void _bfd_merge_sections_free (void *); 706 707 /* Create a string table. */ 708 extern struct bfd_strtab_hash *_bfd_stringtab_init 709 (void); 710 711 /* Create an XCOFF .debug section style string table. */ 712 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init 713 (void); 714 715 /* Free a string table. */ 716 extern void _bfd_stringtab_free 717 (struct bfd_strtab_hash *); 718 719 /* Get the size of a string table. */ 720 extern bfd_size_type _bfd_stringtab_size 721 (struct bfd_strtab_hash *); 722 723 /* Add a string to a string table. */ 724 extern bfd_size_type _bfd_stringtab_add 725 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy); 726 727 /* Write out a string table. */ 728 extern bfd_boolean _bfd_stringtab_emit 729 (bfd *, struct bfd_strtab_hash *); 730 731 /* Check that endianness of input and output file match. */ 732 extern bfd_boolean _bfd_generic_verify_endian_match 733 (bfd *, bfd *); 734 735 /* Macros to tell if bfds are read or write enabled. 736 737 Note that bfds open for read may be scribbled into if the fd passed 738 to bfd_fdopenr is actually open both for read and write 739 simultaneously. However an output bfd will never be open for 740 read. Therefore sometimes you want to check bfd_read_p or 741 !bfd_read_p, and only sometimes bfd_write_p. 742 */ 743 744 #define bfd_read_p(abfd) \ 745 ((abfd)->direction == read_direction || (abfd)->direction == both_direction) 746 #define bfd_write_p(abfd) \ 747 ((abfd)->direction == write_direction || (abfd)->direction == both_direction) 748 749 void bfd_assert 750 (const char*,int); 751 752 #define BFD_ASSERT(x) \ 753 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0) 754 755 #define BFD_FAIL() \ 756 do { bfd_assert(__FILE__,__LINE__); } while (0) 757 758 extern void _bfd_abort 759 (const char *, int, const char *) ATTRIBUTE_NORETURN; 760 761 /* if gcc >= 2.6, we can give a function name, too */ 762 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) 763 #define __PRETTY_FUNCTION__ ((char *) NULL) 764 #endif 765 766 #undef abort 767 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) 768 769 /* Manipulate a system FILE but using BFD's "file_ptr", rather than 770 the system "off_t" or "off64_t", as the offset. */ 771 extern file_ptr real_ftell (FILE *file); 772 extern int real_fseek (FILE *file, file_ptr offset, int whence); 773 extern FILE *real_fopen (const char *filename, const char *modes); 774 775 /* List of supported target vectors, and the default vector (if 776 bfd_default_vector[0] is NULL, there is no default). */ 777 extern const bfd_target * const *bfd_target_vector; 778 extern const bfd_target *bfd_default_vector[]; 779 780 /* List of associated target vectors. */ 781 extern const bfd_target * const *bfd_associated_vector; 782 783 /* Functions shared by the ECOFF and MIPS ELF backends, which have no 784 other common header files. */ 785 786 #if defined(__STDC__) || defined(ALMOST_STDC) 787 struct ecoff_find_line; 788 #endif 789 790 extern bfd_boolean _bfd_ecoff_locate_line 791 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const, 792 const struct ecoff_debug_swap * const, struct ecoff_find_line *, 793 const char **, const char **, unsigned int *); 794 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr 795 (void *, bfd_byte *); 796 extern bfd_boolean _bfd_ecoff_get_accumulated_sym 797 (void *, bfd_byte *); 798 extern bfd_boolean _bfd_ecoff_get_accumulated_ss 799 (void *, bfd_byte *); 800 801 extern bfd_vma _bfd_get_gp_value 802 (bfd *); 803 extern void _bfd_set_gp_value 804 (bfd *, bfd_vma); 805 806 /* Function shared by the COFF and ELF SH backends, which have no 807 other common header files. */ 808 809 #ifndef _bfd_sh_align_load_span 810 extern bfd_boolean _bfd_sh_align_load_span 811 (bfd *, asection *, bfd_byte *, 812 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), 813 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *); 814 #endif 815 816 /* This is the shape of the elements inside the already_linked hash 817 table. It maps a name onto a list of already_linked elements with 818 the same name. */ 819 820 struct bfd_section_already_linked_hash_entry 821 { 822 struct bfd_hash_entry root; 823 struct bfd_section_already_linked *entry; 824 }; 825 826 struct bfd_section_already_linked 827 { 828 struct bfd_section_already_linked *next; 829 asection *sec; 830 }; 831 832 extern struct bfd_section_already_linked_hash_entry * 833 bfd_section_already_linked_table_lookup (const char *); 834 extern bfd_boolean bfd_section_already_linked_table_insert 835 (struct bfd_section_already_linked_hash_entry *, asection *); 836 extern void bfd_section_already_linked_table_traverse 837 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *, 838 void *), void *); 839 840 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *); 841 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *); 842 extern bfd_vma safe_read_leb128 (bfd *, bfd_byte *, unsigned int *, 843 bfd_boolean, const bfd_byte * const); 844