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 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_bfd_is_local_label_name \ 396 ((bfd_boolean (*) (bfd *, const char *)) bfd_false) 397 #define _bfd_nosymbols_bfd_is_target_special_symbol \ 398 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 399 #define _bfd_nosymbols_get_lineno \ 400 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr) 401 #define _bfd_nosymbols_find_nearest_line \ 402 ((bfd_boolean (*) (bfd *, asymbol **, asection *, bfd_vma, \ 403 const char **, const char **, unsigned int *, \ 404 unsigned int *)) \ 405 bfd_false) 406 #define _bfd_nosymbols_find_line \ 407 ((bfd_boolean (*) (bfd *, asymbol **, asymbol *, \ 408 const char **, unsigned int *)) \ 409 bfd_false) 410 #define _bfd_nosymbols_find_inliner_info \ 411 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \ 412 bfd_false) 413 #define _bfd_nosymbols_bfd_make_debug_symbol \ 414 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 415 #define _bfd_nosymbols_read_minisymbols \ 416 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1) 417 #define _bfd_nosymbols_minisymbol_to_symbol \ 418 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \ 419 bfd_nullvoidptr) 420 421 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc 422 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */ 423 424 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *); 425 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *, 426 arelent **, asymbol **); 427 #define _bfd_norelocs_bfd_reloc_type_lookup \ 428 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr) 429 #define _bfd_norelocs_bfd_reloc_name_lookup \ 430 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr) 431 432 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not 433 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */ 434 435 #define _bfd_nowrite_set_arch_mach \ 436 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \ 437 bfd_false) 438 #define _bfd_nowrite_set_section_contents \ 439 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \ 440 bfd_false) 441 442 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use 443 BFD_JUMP_TABLE_WRITE (_bfd_generic). */ 444 445 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach 446 extern bfd_boolean _bfd_generic_set_section_contents 447 (bfd *, asection *, const void *, file_ptr, bfd_size_type); 448 449 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not 450 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */ 451 452 #define _bfd_nolink_sizeof_headers \ 453 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0) 454 #define _bfd_nolink_bfd_get_relocated_section_contents \ 455 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \ 456 bfd_byte *, bfd_boolean, asymbol **)) \ 457 bfd_nullvoidptr) 458 #define _bfd_nolink_bfd_relax_section \ 459 ((bfd_boolean (*) \ 460 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \ 461 bfd_false) 462 #define _bfd_nolink_bfd_gc_sections \ 463 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 464 bfd_false) 465 #define _bfd_nolink_bfd_lookup_section_flags \ 466 ((bfd_boolean (*) (struct bfd_link_info *, struct flag_info *, asection *)) \ 467 bfd_0) 468 #define _bfd_nolink_bfd_merge_sections \ 469 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 470 bfd_false) 471 #define _bfd_nolink_bfd_is_group_section \ 472 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \ 473 bfd_false) 474 #define _bfd_nolink_bfd_discard_group \ 475 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \ 476 bfd_false) 477 #define _bfd_nolink_bfd_link_hash_table_create \ 478 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr) 479 #define _bfd_nolink_bfd_link_add_symbols \ 480 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 481 #define _bfd_nolink_bfd_link_just_syms \ 482 ((void (*) (asection *, struct bfd_link_info *)) bfd_void) 483 #define _bfd_nolink_bfd_copy_link_hash_symbol_type \ 484 ((void (*) (bfd *, struct bfd_link_hash_entry *, \ 485 struct bfd_link_hash_entry *)) bfd_void) 486 #define _bfd_nolink_bfd_final_link \ 487 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 488 #define _bfd_nolink_bfd_link_split_section \ 489 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false) 490 #define _bfd_nolink_section_already_linked \ 491 ((bfd_boolean (*) (bfd *, asection *, \ 492 struct bfd_link_info *)) bfd_false) 493 #define _bfd_nolink_bfd_define_common_symbol \ 494 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \ 495 struct bfd_link_hash_entry *)) bfd_false) 496 497 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not 498 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC 499 (_bfd_nodynamic). */ 500 501 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1 502 #define _bfd_nodynamic_canonicalize_dynamic_symtab \ 503 ((long (*) (bfd *, asymbol **)) _bfd_n1) 504 #define _bfd_nodynamic_get_synthetic_symtab \ 505 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1) 506 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1 507 #define _bfd_nodynamic_canonicalize_dynamic_reloc \ 508 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1) 509 510 /* Generic routine to determine of the given symbol is a local 511 label. */ 512 extern bfd_boolean bfd_generic_is_local_label_name 513 (bfd *, const char *); 514 515 /* Generic minisymbol routines. */ 516 extern long _bfd_generic_read_minisymbols 517 (bfd *, bfd_boolean, void **, unsigned int *); 518 extern asymbol *_bfd_generic_minisymbol_to_symbol 519 (bfd *, bfd_boolean, const void *, asymbol *); 520 521 /* Find the nearest line using .stab/.stabstr sections. */ 522 extern bfd_boolean _bfd_stab_section_find_nearest_line 523 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *, 524 const char **, const char **, unsigned int *, void **); 525 526 /* Find the nearest line using DWARF 1 debugging information. */ 527 extern bfd_boolean _bfd_dwarf1_find_nearest_line 528 (bfd *, asymbol **, asection *, bfd_vma, 529 const char **, const char **, unsigned int *); 530 531 struct dwarf_debug_section 532 { 533 const char *uncompressed_name; 534 const char *compressed_name; 535 }; 536 537 /* Map of uncompressed DWARF debug section name to compressed one. It 538 is terminated by NULL uncompressed_name. */ 539 540 extern const struct dwarf_debug_section dwarf_debug_sections[]; 541 542 /* Find the nearest line using DWARF 2 debugging information. */ 543 extern bfd_boolean _bfd_dwarf2_find_nearest_line 544 (bfd *, asymbol **, asymbol *, asection *, bfd_vma, 545 const char **, const char **, unsigned int *, unsigned int *, 546 const struct dwarf_debug_section *, unsigned int, void **); 547 548 /* Find inliner info after calling bfd_find_nearest_line. */ 549 extern bfd_boolean _bfd_dwarf2_find_inliner_info 550 (bfd *, const char **, const char **, unsigned int *, void **); 551 552 /* Read DWARF 2 debugging information. */ 553 extern bfd_boolean _bfd_dwarf2_slurp_debug_info 554 (bfd *, bfd *, const struct dwarf_debug_section *, asymbol **, void **, 555 bfd_boolean); 556 557 /* Clean up the data used to handle DWARF 2 debugging information. */ 558 extern void _bfd_dwarf2_cleanup_debug_info 559 (bfd *, void **); 560 561 /* Create a new section entry. */ 562 extern struct bfd_hash_entry *bfd_section_hash_newfunc 563 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 564 565 /* A routine to create entries for a bfd_link_hash_table. */ 566 extern struct bfd_hash_entry *_bfd_link_hash_newfunc 567 (struct bfd_hash_entry *entry, struct bfd_hash_table *table, 568 const char *string); 569 570 /* Initialize a bfd_link_hash_table. */ 571 extern bfd_boolean _bfd_link_hash_table_init 572 (struct bfd_link_hash_table *, bfd *, 573 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 574 struct bfd_hash_table *, 575 const char *), 576 unsigned int); 577 578 /* Generic link hash table creation routine. */ 579 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create 580 (bfd *); 581 582 /* Generic link hash table destruction routine. */ 583 extern void _bfd_generic_link_hash_table_free 584 (bfd *); 585 586 /* Generic add symbol routine. */ 587 extern bfd_boolean _bfd_generic_link_add_symbols 588 (bfd *, struct bfd_link_info *); 589 590 /* Generic add symbol routine. This version is used by targets for 591 which the linker must collect constructors and destructors by name, 592 as the collect2 program does. */ 593 extern bfd_boolean _bfd_generic_link_add_symbols_collect 594 (bfd *, struct bfd_link_info *); 595 596 /* Generic archive add symbol routine. */ 597 extern bfd_boolean _bfd_generic_link_add_archive_symbols 598 (bfd *, struct bfd_link_info *, 599 bfd_boolean (*) (bfd *, struct bfd_link_info *, 600 struct bfd_link_hash_entry *, const char *, 601 bfd_boolean *)); 602 603 /* Forward declaration to avoid prototype errors. */ 604 typedef struct bfd_link_hash_entry _bfd_link_hash_entry; 605 606 /* Generic routine to add a single symbol. */ 607 extern bfd_boolean _bfd_generic_link_add_one_symbol 608 (struct bfd_link_info *, bfd *, const char *name, flagword, 609 asection *, bfd_vma, const char *, bfd_boolean copy, 610 bfd_boolean constructor, struct bfd_link_hash_entry **); 611 612 /* Generic routine to mark section as supplying symbols only. */ 613 extern void _bfd_generic_link_just_syms 614 (asection *, struct bfd_link_info *); 615 616 /* Generic routine that does nothing. */ 617 extern void _bfd_generic_copy_link_hash_symbol_type 618 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *); 619 620 /* Generic link routine. */ 621 extern bfd_boolean _bfd_generic_final_link 622 (bfd *, struct bfd_link_info *); 623 624 extern bfd_boolean _bfd_generic_link_split_section 625 (bfd *, struct bfd_section *); 626 627 extern bfd_boolean _bfd_generic_section_already_linked 628 (bfd *, asection *, struct bfd_link_info *); 629 630 /* Generic reloc_link_order processing routine. */ 631 extern bfd_boolean _bfd_generic_reloc_link_order 632 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 633 634 /* Default link order processing routine. */ 635 extern bfd_boolean _bfd_default_link_order 636 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 637 638 /* Count the number of reloc entries in a link order list. */ 639 extern unsigned int _bfd_count_link_order_relocs 640 (struct bfd_link_order *); 641 642 /* Final link relocation routine. */ 643 extern bfd_reloc_status_type _bfd_final_link_relocate 644 (reloc_howto_type *, bfd *, asection *, bfd_byte *, 645 bfd_vma, bfd_vma, bfd_vma); 646 647 /* Relocate a particular location by a howto and a value. */ 648 extern bfd_reloc_status_type _bfd_relocate_contents 649 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *); 650 651 /* Clear a given location using a given howto. */ 652 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd, 653 asection *input_section, bfd_byte *location); 654 655 /* Link stabs in sections in the first pass. */ 656 657 extern bfd_boolean _bfd_link_section_stabs 658 (bfd *, struct stab_info *, asection *, asection *, void **, 659 bfd_size_type *); 660 661 /* Eliminate stabs for discarded functions and symbols. */ 662 extern bfd_boolean _bfd_discard_section_stabs 663 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *); 664 665 /* Write out the .stab section when linking stabs in sections. */ 666 667 extern bfd_boolean _bfd_write_section_stabs 668 (bfd *, struct stab_info *, asection *, void **, bfd_byte *); 669 670 /* Write out the .stabstr string table when linking stabs in sections. */ 671 672 extern bfd_boolean _bfd_write_stab_strings 673 (bfd *, struct stab_info *); 674 675 /* Find an offset within a .stab section when linking stabs in 676 sections. */ 677 678 extern bfd_vma _bfd_stab_section_offset 679 (asection *, void *, bfd_vma); 680 681 /* Register a SEC_MERGE section as a candidate for merging. */ 682 683 extern bfd_boolean _bfd_add_merge_section 684 (bfd *, void **, asection *, void **); 685 686 /* Attempt to merge SEC_MERGE sections. */ 687 688 extern bfd_boolean _bfd_merge_sections 689 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *)); 690 691 /* Write out a merged section. */ 692 693 extern bfd_boolean _bfd_write_merged_section 694 (bfd *, asection *, void *); 695 696 /* Find an offset within a modified SEC_MERGE section. */ 697 698 extern bfd_vma _bfd_merged_section_offset 699 (bfd *, asection **, void *, bfd_vma); 700 701 /* Tidy up when done. */ 702 703 extern void _bfd_merge_sections_free (void *); 704 705 /* Create a string table. */ 706 extern struct bfd_strtab_hash *_bfd_stringtab_init 707 (void); 708 709 /* Create an XCOFF .debug section style string table. */ 710 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init 711 (void); 712 713 /* Free a string table. */ 714 extern void _bfd_stringtab_free 715 (struct bfd_strtab_hash *); 716 717 /* Get the size of a string table. */ 718 extern bfd_size_type _bfd_stringtab_size 719 (struct bfd_strtab_hash *); 720 721 /* Add a string to a string table. */ 722 extern bfd_size_type _bfd_stringtab_add 723 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy); 724 725 /* Write out a string table. */ 726 extern bfd_boolean _bfd_stringtab_emit 727 (bfd *, struct bfd_strtab_hash *); 728 729 /* Check that endianness of input and output file match. */ 730 extern bfd_boolean _bfd_generic_verify_endian_match 731 (bfd *, bfd *); 732 733 /* Macros to tell if bfds are read or write enabled. 734 735 Note that bfds open for read may be scribbled into if the fd passed 736 to bfd_fdopenr is actually open both for read and write 737 simultaneously. However an output bfd will never be open for 738 read. Therefore sometimes you want to check bfd_read_p or 739 !bfd_read_p, and only sometimes bfd_write_p. 740 */ 741 742 #define bfd_read_p(abfd) \ 743 ((abfd)->direction == read_direction || (abfd)->direction == both_direction) 744 #define bfd_write_p(abfd) \ 745 ((abfd)->direction == write_direction || (abfd)->direction == both_direction) 746 747 void bfd_assert 748 (const char*,int); 749 750 #define BFD_ASSERT(x) \ 751 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0) 752 753 #define BFD_FAIL() \ 754 do { bfd_assert(__FILE__,__LINE__); } while (0) 755 756 extern void _bfd_abort 757 (const char *, int, const char *) ATTRIBUTE_NORETURN; 758 759 /* if gcc >= 2.6, we can give a function name, too */ 760 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) 761 #define __PRETTY_FUNCTION__ ((char *) NULL) 762 #endif 763 764 #undef abort 765 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) 766 767 /* Manipulate a system FILE but using BFD's "file_ptr", rather than 768 the system "off_t" or "off64_t", as the offset. */ 769 extern file_ptr real_ftell (FILE *file); 770 extern int real_fseek (FILE *file, file_ptr offset, int whence); 771 extern FILE *real_fopen (const char *filename, const char *modes); 772 773 /* List of supported target vectors, and the default vector (if 774 bfd_default_vector[0] is NULL, there is no default). */ 775 extern const bfd_target * const *bfd_target_vector; 776 extern const bfd_target *bfd_default_vector[]; 777 778 /* List of associated target vectors. */ 779 extern const bfd_target * const *bfd_associated_vector; 780 781 /* Functions shared by the ECOFF and MIPS ELF backends, which have no 782 other common header files. */ 783 784 #if defined(__STDC__) || defined(ALMOST_STDC) 785 struct ecoff_find_line; 786 #endif 787 788 extern bfd_boolean _bfd_ecoff_locate_line 789 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const, 790 const struct ecoff_debug_swap * const, struct ecoff_find_line *, 791 const char **, const char **, unsigned int *); 792 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr 793 (void *, bfd_byte *); 794 extern bfd_boolean _bfd_ecoff_get_accumulated_sym 795 (void *, bfd_byte *); 796 extern bfd_boolean _bfd_ecoff_get_accumulated_ss 797 (void *, bfd_byte *); 798 799 extern bfd_vma _bfd_get_gp_value 800 (bfd *); 801 extern void _bfd_set_gp_value 802 (bfd *, bfd_vma); 803 804 /* Function shared by the COFF and ELF SH backends, which have no 805 other common header files. */ 806 807 #ifndef _bfd_sh_align_load_span 808 extern bfd_boolean _bfd_sh_align_load_span 809 (bfd *, asection *, bfd_byte *, 810 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), 811 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *); 812 #endif 813 814 /* This is the shape of the elements inside the already_linked hash 815 table. It maps a name onto a list of already_linked elements with 816 the same name. */ 817 818 struct bfd_section_already_linked_hash_entry 819 { 820 struct bfd_hash_entry root; 821 struct bfd_section_already_linked *entry; 822 }; 823 824 struct bfd_section_already_linked 825 { 826 struct bfd_section_already_linked *next; 827 asection *sec; 828 }; 829 830 extern struct bfd_section_already_linked_hash_entry * 831 bfd_section_already_linked_table_lookup (const char *); 832 extern bfd_boolean bfd_section_already_linked_table_insert 833 (struct bfd_section_already_linked_hash_entry *, asection *); 834 extern void bfd_section_already_linked_table_traverse 835 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *, 836 void *), void *); 837 838 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *); 839 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *); 840