1 /* libbfd.h -- Declarations used by bfd library *implementation*. 2 (This include file is not for users of the library.) 3 4 Copyright (C) 1990-2014 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 231 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */ 232 233 #define _bfd_generic_close_and_cleanup _bfd_archive_close_and_cleanup 234 extern bfd_boolean _bfd_archive_close_and_cleanup 235 (bfd *); 236 #define _bfd_generic_bfd_free_cached_info bfd_true 237 extern bfd_boolean _bfd_generic_new_section_hook 238 (bfd *, asection *); 239 extern bfd_boolean _bfd_generic_get_section_contents 240 (bfd *, asection *, void *, file_ptr, bfd_size_type); 241 extern bfd_boolean _bfd_generic_get_section_contents_in_window 242 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type); 243 244 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use 245 BFD_JUMP_TABLE_COPY (_bfd_generic). */ 246 247 #define _bfd_generic_bfd_copy_private_bfd_data \ 248 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 249 #define _bfd_generic_bfd_merge_private_bfd_data \ 250 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 251 #define _bfd_generic_bfd_set_private_flags \ 252 ((bfd_boolean (*) (bfd *, flagword)) bfd_true) 253 #define _bfd_generic_bfd_copy_private_section_data \ 254 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true) 255 #define _bfd_generic_bfd_copy_private_symbol_data \ 256 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true) 257 #define _bfd_generic_bfd_copy_private_header_data \ 258 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 259 #define _bfd_generic_bfd_print_private_bfd_data \ 260 ((bfd_boolean (*) (bfd *, void *)) bfd_true) 261 262 extern bfd_boolean _bfd_generic_init_private_section_data 263 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *); 264 265 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file 266 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */ 267 268 extern char *_bfd_nocore_core_file_failing_command 269 (bfd *); 270 extern int _bfd_nocore_core_file_failing_signal 271 (bfd *); 272 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p 273 (bfd *, bfd *); 274 extern int _bfd_nocore_core_file_pid 275 (bfd *); 276 277 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive 278 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */ 279 280 #define _bfd_noarchive_slurp_armap bfd_false 281 #define _bfd_noarchive_slurp_extended_name_table bfd_false 282 #define _bfd_noarchive_construct_extended_name_table \ 283 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \ 284 bfd_false) 285 #define _bfd_noarchive_truncate_arname \ 286 ((void (*) (bfd *, const char *, char *)) bfd_void) 287 #define _bfd_noarchive_write_armap \ 288 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \ 289 bfd_false) 290 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr 291 #define _bfd_noarchive_write_ar_hdr \ 292 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false) 293 #define _bfd_noarchive_openr_next_archived_file \ 294 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr) 295 #define _bfd_noarchive_get_elt_at_index \ 296 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr) 297 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt 298 #define _bfd_noarchive_update_armap_timestamp bfd_false 299 300 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style 301 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */ 302 303 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap 304 #define _bfd_archive_bsd_slurp_extended_name_table \ 305 _bfd_slurp_extended_name_table 306 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table 307 (bfd *, char **, bfd_size_type *, const char **); 308 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname 309 #define _bfd_archive_bsd_write_armap bsd_write_armap 310 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr 311 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr 312 #define _bfd_archive_bsd_openr_next_archived_file \ 313 bfd_generic_openr_next_archived_file 314 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index 315 #define _bfd_archive_bsd_generic_stat_arch_elt \ 316 bfd_generic_stat_arch_elt 317 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp 318 (bfd *); 319 320 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style 321 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */ 322 323 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap 324 #define _bfd_archive_coff_slurp_extended_name_table \ 325 _bfd_slurp_extended_name_table 326 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table 327 (bfd *, char **, bfd_size_type *, const char **); 328 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname 329 #define _bfd_archive_coff_write_armap coff_write_armap 330 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr 331 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr 332 #define _bfd_archive_coff_openr_next_archived_file \ 333 bfd_generic_openr_next_archived_file 334 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index 335 #define _bfd_archive_coff_generic_stat_arch_elt \ 336 bfd_generic_stat_arch_elt 337 #define _bfd_archive_coff_update_armap_timestamp bfd_true 338 339 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style 340 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */ 341 342 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap 343 #define _bfd_archive_bsd44_slurp_extended_name_table \ 344 _bfd_slurp_extended_name_table 345 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table 346 (bfd *, char **, bfd_size_type *, const char **); 347 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname 348 #define _bfd_archive_bsd44_write_armap bsd_write_armap 349 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr 350 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr 351 #define _bfd_archive_bsd44_openr_next_archived_file \ 352 bfd_generic_openr_next_archived_file 353 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index 354 #define _bfd_archive_bsd44_generic_stat_arch_elt \ 355 bfd_generic_stat_arch_elt 356 #define _bfd_archive_bsd44_update_armap_timestamp \ 357 _bfd_archive_bsd_update_armap_timestamp 358 359 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style 360 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them 361 are irrelevant and never called, so defined as NULL. */ 362 363 extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch); 364 #define _bfd_vms_lib_slurp_armap NULL 365 #define _bfd_vms_lib_slurp_extended_name_table NULL 366 #define _bfd_vms_lib_construct_extended_name_table NULL 367 #define _bfd_vms_lib_truncate_arname NULL 368 #define _bfd_vms_lib_write_armap NULL 369 #define _bfd_vms_lib_read_ar_hdr NULL 370 #define _bfd_vms_lib_write_ar_hdr NULL 371 extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *); 372 extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex); 373 extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *); 374 #define _bfd_vms_lib_update_armap_timestamp bfd_true 375 376 /* Extra routines for VMS style archives. */ 377 378 extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *); 379 extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *); 380 extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd); 381 extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd); 382 extern bfd_boolean _bfd_vms_lib_alpha_mkarchive (bfd *abfd); 383 extern bfd_boolean _bfd_vms_lib_ia64_mkarchive (bfd *abfd); 384 385 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol 386 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */ 387 388 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1 389 #define _bfd_nosymbols_canonicalize_symtab \ 390 ((long (*) (bfd *, asymbol **)) _bfd_n1) 391 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol 392 #define _bfd_nosymbols_print_symbol \ 393 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void) 394 #define _bfd_nosymbols_get_symbol_info \ 395 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void) 396 #define _bfd_nosymbols_bfd_is_local_label_name \ 397 ((bfd_boolean (*) (bfd *, const char *)) bfd_false) 398 #define _bfd_nosymbols_bfd_is_target_special_symbol \ 399 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 400 #define _bfd_nosymbols_get_lineno \ 401 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr) 402 #define _bfd_nosymbols_find_nearest_line \ 403 ((bfd_boolean (*) (bfd *, asymbol **, asection *, bfd_vma, \ 404 const char **, const char **, unsigned int *, \ 405 unsigned int *)) \ 406 bfd_false) 407 #define _bfd_nosymbols_find_line \ 408 ((bfd_boolean (*) (bfd *, asymbol **, asymbol *, \ 409 const char **, unsigned int *)) \ 410 bfd_false) 411 #define _bfd_nosymbols_find_inliner_info \ 412 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \ 413 bfd_false) 414 #define _bfd_nosymbols_bfd_make_debug_symbol \ 415 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 416 #define _bfd_nosymbols_read_minisymbols \ 417 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1) 418 #define _bfd_nosymbols_minisymbol_to_symbol \ 419 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \ 420 bfd_nullvoidptr) 421 422 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc 423 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */ 424 425 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *); 426 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *, 427 arelent **, asymbol **); 428 #define _bfd_norelocs_bfd_reloc_type_lookup \ 429 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr) 430 #define _bfd_norelocs_bfd_reloc_name_lookup \ 431 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr) 432 433 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not 434 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */ 435 436 #define _bfd_nowrite_set_arch_mach \ 437 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \ 438 bfd_false) 439 #define _bfd_nowrite_set_section_contents \ 440 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \ 441 bfd_false) 442 443 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use 444 BFD_JUMP_TABLE_WRITE (_bfd_generic). */ 445 446 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach 447 extern bfd_boolean _bfd_generic_set_section_contents 448 (bfd *, asection *, const void *, file_ptr, bfd_size_type); 449 450 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not 451 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */ 452 453 #define _bfd_nolink_sizeof_headers \ 454 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0) 455 #define _bfd_nolink_bfd_get_relocated_section_contents \ 456 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \ 457 bfd_byte *, bfd_boolean, asymbol **)) \ 458 bfd_nullvoidptr) 459 #define _bfd_nolink_bfd_relax_section \ 460 ((bfd_boolean (*) \ 461 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \ 462 bfd_false) 463 #define _bfd_nolink_bfd_gc_sections \ 464 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 465 bfd_false) 466 #define _bfd_nolink_bfd_lookup_section_flags \ 467 ((bfd_boolean (*) (struct bfd_link_info *, struct flag_info *, asection *)) \ 468 bfd_0) 469 #define _bfd_nolink_bfd_merge_sections \ 470 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 471 bfd_false) 472 #define _bfd_nolink_bfd_is_group_section \ 473 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \ 474 bfd_false) 475 #define _bfd_nolink_bfd_discard_group \ 476 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \ 477 bfd_false) 478 #define _bfd_nolink_bfd_link_hash_table_create \ 479 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr) 480 #define _bfd_nolink_bfd_link_add_symbols \ 481 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 482 #define _bfd_nolink_bfd_link_just_syms \ 483 ((void (*) (asection *, struct bfd_link_info *)) bfd_void) 484 #define _bfd_nolink_bfd_copy_link_hash_symbol_type \ 485 ((void (*) (bfd *, struct bfd_link_hash_entry *, \ 486 struct bfd_link_hash_entry *)) bfd_void) 487 #define _bfd_nolink_bfd_final_link \ 488 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 489 #define _bfd_nolink_bfd_link_split_section \ 490 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false) 491 #define _bfd_nolink_section_already_linked \ 492 ((bfd_boolean (*) (bfd *, asection *, \ 493 struct bfd_link_info *)) bfd_false) 494 #define _bfd_nolink_bfd_define_common_symbol \ 495 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \ 496 struct bfd_link_hash_entry *)) bfd_false) 497 498 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not 499 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC 500 (_bfd_nodynamic). */ 501 502 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1 503 #define _bfd_nodynamic_canonicalize_dynamic_symtab \ 504 ((long (*) (bfd *, asymbol **)) _bfd_n1) 505 #define _bfd_nodynamic_get_synthetic_symtab \ 506 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1) 507 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1 508 #define _bfd_nodynamic_canonicalize_dynamic_reloc \ 509 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1) 510 511 /* 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. 737 738 Note that bfds open for read may be scribbled into if the fd passed 739 to bfd_fdopenr is actually open both for read and write 740 simultaneously. However an output bfd will never be open for 741 read. Therefore sometimes you want to check bfd_read_p or 742 !bfd_read_p, and only sometimes bfd_write_p. 743 */ 744 745 #define bfd_read_p(abfd) \ 746 ((abfd)->direction == read_direction || (abfd)->direction == both_direction) 747 #define bfd_write_p(abfd) \ 748 ((abfd)->direction == write_direction || (abfd)->direction == both_direction) 749 750 void bfd_assert 751 (const char*,int); 752 753 #define BFD_ASSERT(x) \ 754 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0) 755 756 #define BFD_FAIL() \ 757 do { bfd_assert(__FILE__,__LINE__); } while (0) 758 759 extern void _bfd_abort 760 (const char *, int, const char *) ATTRIBUTE_NORETURN; 761 762 /* if gcc >= 2.6, we can give a function name, too */ 763 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) 764 #define __PRETTY_FUNCTION__ ((char *) NULL) 765 #endif 766 767 #undef abort 768 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) 769 770 /* Manipulate a system FILE but using BFD's "file_ptr", rather than 771 the system "off_t" or "off64_t", as the offset. */ 772 extern file_ptr real_ftell (FILE *file); 773 extern int real_fseek (FILE *file, file_ptr offset, int whence); 774 extern FILE *real_fopen (const char *filename, const char *modes); 775 776 /* List of supported target vectors, and the default vector (if 777 bfd_default_vector[0] is NULL, there is no default). */ 778 extern const bfd_target * const *bfd_target_vector; 779 extern const bfd_target *bfd_default_vector[]; 780 781 /* List of associated target vectors. */ 782 extern const bfd_target * const *bfd_associated_vector; 783 784 /* Functions shared by the ECOFF and MIPS ELF backends, which have no 785 other common header files. */ 786 787 #if defined(__STDC__) || defined(ALMOST_STDC) 788 struct ecoff_find_line; 789 #endif 790 791 extern bfd_boolean _bfd_ecoff_locate_line 792 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const, 793 const struct ecoff_debug_swap * const, struct ecoff_find_line *, 794 const char **, const char **, unsigned int *); 795 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr 796 (void *, bfd_byte *); 797 extern bfd_boolean _bfd_ecoff_get_accumulated_sym 798 (void *, bfd_byte *); 799 extern bfd_boolean _bfd_ecoff_get_accumulated_ss 800 (void *, bfd_byte *); 801 802 extern bfd_vma _bfd_get_gp_value 803 (bfd *); 804 extern void _bfd_set_gp_value 805 (bfd *, bfd_vma); 806 807 /* Function shared by the COFF and ELF SH backends, which have no 808 other common header files. */ 809 810 #ifndef _bfd_sh_align_load_span 811 extern bfd_boolean _bfd_sh_align_load_span 812 (bfd *, asection *, bfd_byte *, 813 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), 814 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *); 815 #endif 816 817 /* This is the shape of the elements inside the already_linked hash 818 table. It maps a name onto a list of already_linked elements with 819 the same name. */ 820 821 struct bfd_section_already_linked_hash_entry 822 { 823 struct bfd_hash_entry root; 824 struct bfd_section_already_linked *entry; 825 }; 826 827 struct bfd_section_already_linked 828 { 829 struct bfd_section_already_linked *next; 830 asection *sec; 831 }; 832 833 extern struct bfd_section_already_linked_hash_entry * 834 bfd_section_already_linked_table_lookup (const char *); 835 extern bfd_boolean bfd_section_already_linked_table_insert 836 (struct bfd_section_already_linked_hash_entry *, asection *); 837 extern void bfd_section_already_linked_table_traverse 838 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *, 839 void *), void *); 840 841 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *); 842 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *); 843
