1 /* libbfd.h -- Declarations used by bfd library *implementation*. 2 (This include file is not for users of the library.) 3 4 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 5 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 6 Free Software Foundation, Inc. 7 8 Written by Cygnus Support. 9 10 This file is part of BFD, the Binary File Descriptor library. 11 12 This program is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; either version 3 of the License, or 15 (at your option) any later version. 16 17 This program is distributed in the hope that it will be useful, 18 but WITHOUT ANY WARRANTY; without even the implied warranty of 19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 GNU General Public License for more details. 21 22 You should have received a copy of the GNU General Public License 23 along with this program; if not, write to the Free Software 24 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 25 MA 02110-1301, USA. */ 26 27 #include "hashtab.h" 28 29 /* Align an address upward to a boundary, expressed as a number of bytes. 30 E.g. align to an 8-byte boundary with argument of 8. Take care never 31 to wrap around if the address is within boundary-1 of the end of the 32 address space. */ 33 #define BFD_ALIGN(this, boundary) \ 34 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \ 35 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \ 36 : ~ (bfd_vma) 0) 37 38 /* If you want to read and write large blocks, you might want to do it 39 in quanta of this amount */ 40 #define DEFAULT_BUFFERSIZE 8192 41 42 /* Set a tdata field. Can't use the other macros for this, since they 43 do casts, and casting to the left of assignment isn't portable. */ 44 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v)) 45 46 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points 47 to an instance of this structure. */ 48 49 struct bfd_in_memory 50 { 51 /* Size of buffer. */ 52 bfd_size_type size; 53 /* Buffer holding contents of BFD. */ 54 bfd_byte *buffer; 55 }; 56 57 struct section_hash_entry 58 { 59 struct bfd_hash_entry root; 60 asection section; 61 }; 62 63 /* tdata for an archive. For an input archive, cache 64 needs to be free()'d. For an output archive, symdefs do. */ 65 66 struct artdata { 67 file_ptr first_file_filepos; 68 /* Speed up searching the armap */ 69 htab_t cache; 70 bfd *archive_head; /* Only interesting in output routines */ 71 carsym *symdefs; /* the symdef entries */ 72 symindex symdef_count; /* how many there are */ 73 char *extended_names; /* clever intel extension */ 74 bfd_size_type extended_names_size; /* Size of extended names */ 75 /* when more compilers are standard C, this can be a time_t */ 76 long armap_timestamp; /* Timestamp value written into armap. 77 This is used for BSD archives to check 78 that the timestamp is recent enough 79 for the BSD linker to not complain, 80 just before we finish writing an 81 archive. */ 82 file_ptr armap_datepos; /* Position within archive to seek to 83 rewrite the date field. */ 84 void *tdata; /* Backend specific information. */ 85 }; 86 87 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data) 88 89 /* Goes in bfd's arelt_data slot */ 90 struct areltdata { 91 char * arch_header; /* it's actually a string */ 92 unsigned int parsed_size; /* octets of filesize not including ar_hdr */ 93 char *filename; /* null-terminated */ 94 file_ptr origin; /* for element of a thin archive */ 95 }; 96 97 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size) 98 99 extern void *bfd_malloc 100 (bfd_size_type); 101 extern void *bfd_realloc 102 (void *, bfd_size_type); 103 extern void *bfd_realloc_or_free 104 (void *, bfd_size_type); 105 extern void *bfd_zmalloc 106 (bfd_size_type); 107 extern void *bfd_malloc2 108 (bfd_size_type, bfd_size_type); 109 extern void *bfd_realloc2 110 (void *, bfd_size_type, bfd_size_type); 111 extern void *bfd_zmalloc2 112 (bfd_size_type, bfd_size_type); 113 114 extern void _bfd_default_error_handler (const char *s, ...); 115 extern bfd_error_handler_type _bfd_error_handler; 116 117 /* These routines allocate and free things on the BFD's objalloc. */ 118 119 extern void *bfd_alloc 120 (bfd *, bfd_size_type); 121 extern void *bfd_zalloc 122 (bfd *, bfd_size_type); 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 const bfd_target *bfd_generic_archive_p 139 (bfd *abfd); 140 bfd_boolean bfd_slurp_armap 141 (bfd *abfd); 142 bfd_boolean bfd_slurp_bsd_armap_f2 143 (bfd *abfd); 144 #define bfd_slurp_bsd_armap bfd_slurp_armap 145 #define bfd_slurp_coff_armap bfd_slurp_armap 146 bfd_boolean _bfd_slurp_extended_name_table 147 (bfd *abfd); 148 extern bfd_boolean _bfd_construct_extended_name_table 149 (bfd *, bfd_boolean, char **, bfd_size_type *); 150 bfd_boolean _bfd_write_archive_contents 151 (bfd *abfd); 152 bfd_boolean _bfd_compute_and_write_armap 153 (bfd *, unsigned int elength); 154 bfd *_bfd_get_elt_at_filepos 155 (bfd *archive, file_ptr filepos); 156 extern bfd *_bfd_generic_get_elt_at_index 157 (bfd *, symindex); 158 bfd * _bfd_new_bfd 159 (void); 160 void _bfd_delete_bfd 161 (bfd *); 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); 206 207 extern void *_bfd_generic_read_ar_hdr_mag 208 (bfd *, const char *); 209 210 bfd * bfd_generic_openr_next_archived_file 211 (bfd *archive, bfd *last_file); 212 213 int bfd_generic_stat_arch_elt 214 (bfd *, struct stat *); 215 216 #define _bfd_read_ar_hdr(abfd) \ 217 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd)) 218 219 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use 220 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */ 221 222 #define _bfd_generic_close_and_cleanup bfd_true 223 #define _bfd_generic_bfd_free_cached_info bfd_true 224 extern bfd_boolean _bfd_generic_new_section_hook 225 (bfd *, asection *); 226 extern bfd_boolean _bfd_generic_get_section_contents 227 (bfd *, asection *, void *, file_ptr, bfd_size_type); 228 extern bfd_boolean _bfd_generic_get_section_contents_in_window 229 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type); 230 231 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use 232 BFD_JUMP_TABLE_COPY (_bfd_generic). */ 233 234 #define _bfd_generic_bfd_copy_private_bfd_data \ 235 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 236 #define _bfd_generic_bfd_merge_private_bfd_data \ 237 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 238 #define _bfd_generic_bfd_set_private_flags \ 239 ((bfd_boolean (*) (bfd *, flagword)) bfd_true) 240 #define _bfd_generic_bfd_copy_private_section_data \ 241 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true) 242 #define _bfd_generic_bfd_copy_private_symbol_data \ 243 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true) 244 #define _bfd_generic_bfd_copy_private_header_data \ 245 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 246 #define _bfd_generic_bfd_print_private_bfd_data \ 247 ((bfd_boolean (*) (bfd *, void *)) bfd_true) 248 249 extern bfd_boolean _bfd_generic_init_private_section_data 250 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *); 251 252 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file 253 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */ 254 255 extern char *_bfd_nocore_core_file_failing_command 256 (bfd *); 257 extern int _bfd_nocore_core_file_failing_signal 258 (bfd *); 259 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p 260 (bfd *, bfd *); 261 262 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive 263 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */ 264 265 #define _bfd_noarchive_slurp_armap bfd_false 266 #define _bfd_noarchive_slurp_extended_name_table bfd_false 267 #define _bfd_noarchive_construct_extended_name_table \ 268 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \ 269 bfd_false) 270 #define _bfd_noarchive_truncate_arname \ 271 ((void (*) (bfd *, const char *, char *)) bfd_void) 272 #define _bfd_noarchive_write_armap \ 273 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \ 274 bfd_false) 275 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr 276 #define _bfd_noarchive_openr_next_archived_file \ 277 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr) 278 #define _bfd_noarchive_get_elt_at_index \ 279 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr) 280 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt 281 #define _bfd_noarchive_update_armap_timestamp bfd_false 282 283 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style 284 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */ 285 286 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap 287 #define _bfd_archive_bsd_slurp_extended_name_table \ 288 _bfd_slurp_extended_name_table 289 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table 290 (bfd *, char **, bfd_size_type *, const char **); 291 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname 292 #define _bfd_archive_bsd_write_armap bsd_write_armap 293 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr 294 #define _bfd_archive_bsd_openr_next_archived_file \ 295 bfd_generic_openr_next_archived_file 296 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index 297 #define _bfd_archive_bsd_generic_stat_arch_elt \ 298 bfd_generic_stat_arch_elt 299 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp 300 (bfd *); 301 302 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style 303 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */ 304 305 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap 306 #define _bfd_archive_coff_slurp_extended_name_table \ 307 _bfd_slurp_extended_name_table 308 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table 309 (bfd *, char **, bfd_size_type *, const char **); 310 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname 311 #define _bfd_archive_coff_write_armap coff_write_armap 312 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr 313 #define _bfd_archive_coff_openr_next_archived_file \ 314 bfd_generic_openr_next_archived_file 315 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index 316 #define _bfd_archive_coff_generic_stat_arch_elt \ 317 bfd_generic_stat_arch_elt 318 #define _bfd_archive_coff_update_armap_timestamp bfd_true 319 320 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol 321 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */ 322 323 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1 324 #define _bfd_nosymbols_canonicalize_symtab \ 325 ((long (*) (bfd *, asymbol **)) _bfd_n1) 326 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol 327 #define _bfd_nosymbols_print_symbol \ 328 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void) 329 #define _bfd_nosymbols_get_symbol_info \ 330 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void) 331 #define _bfd_nosymbols_bfd_is_local_label_name \ 332 ((bfd_boolean (*) (bfd *, const char *)) bfd_false) 333 #define _bfd_nosymbols_bfd_is_target_special_symbol \ 334 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 335 #define _bfd_nosymbols_get_lineno \ 336 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr) 337 #define _bfd_nosymbols_find_nearest_line \ 338 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \ 339 const char **, unsigned int *)) \ 340 bfd_false) 341 #define _bfd_nosymbols_find_inliner_info \ 342 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \ 343 bfd_false) 344 #define _bfd_nosymbols_bfd_make_debug_symbol \ 345 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 346 #define _bfd_nosymbols_read_minisymbols \ 347 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1) 348 #define _bfd_nosymbols_minisymbol_to_symbol \ 349 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \ 350 bfd_nullvoidptr) 351 352 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc 353 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */ 354 355 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *); 356 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *, 357 arelent **, asymbol **); 358 #define _bfd_norelocs_bfd_reloc_type_lookup \ 359 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr) 360 #define _bfd_norelocs_bfd_reloc_name_lookup \ 361 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr) 362 363 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not 364 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */ 365 366 #define _bfd_nowrite_set_arch_mach \ 367 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \ 368 bfd_false) 369 #define _bfd_nowrite_set_section_contents \ 370 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \ 371 bfd_false) 372 373 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use 374 BFD_JUMP_TABLE_WRITE (_bfd_generic). */ 375 376 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach 377 extern bfd_boolean _bfd_generic_set_section_contents 378 (bfd *, asection *, const void *, file_ptr, bfd_size_type); 379 380 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not 381 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */ 382 383 #define _bfd_nolink_sizeof_headers \ 384 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0) 385 #define _bfd_nolink_bfd_get_relocated_section_contents \ 386 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \ 387 bfd_byte *, bfd_boolean, asymbol **)) \ 388 bfd_nullvoidptr) 389 #define _bfd_nolink_bfd_relax_section \ 390 ((bfd_boolean (*) \ 391 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \ 392 bfd_false) 393 #define _bfd_nolink_bfd_gc_sections \ 394 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 395 bfd_false) 396 #define _bfd_nolink_bfd_merge_sections \ 397 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 398 bfd_false) 399 #define _bfd_nolink_bfd_is_group_section \ 400 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \ 401 bfd_false) 402 #define _bfd_nolink_bfd_discard_group \ 403 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \ 404 bfd_false) 405 #define _bfd_nolink_bfd_link_hash_table_create \ 406 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr) 407 #define _bfd_nolink_bfd_link_hash_table_free \ 408 ((void (*) (struct bfd_link_hash_table *)) bfd_void) 409 #define _bfd_nolink_bfd_link_add_symbols \ 410 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 411 #define _bfd_nolink_bfd_link_just_syms \ 412 ((void (*) (asection *, struct bfd_link_info *)) bfd_void) 413 #define _bfd_nolink_bfd_final_link \ 414 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 415 #define _bfd_nolink_bfd_link_split_section \ 416 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false) 417 #define _bfd_nolink_section_already_linked \ 418 ((void (*) (bfd *, struct bfd_section *, struct bfd_link_info *)) bfd_void) 419 420 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not 421 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC 422 (_bfd_nodynamic). */ 423 424 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1 425 #define _bfd_nodynamic_canonicalize_dynamic_symtab \ 426 ((long (*) (bfd *, asymbol **)) _bfd_n1) 427 #define _bfd_nodynamic_get_synthetic_symtab \ 428 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1) 429 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1 430 #define _bfd_nodynamic_canonicalize_dynamic_reloc \ 431 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1) 432 433 /* Generic routine to determine of the given symbol is a local 434 label. */ 435 extern bfd_boolean bfd_generic_is_local_label_name 436 (bfd *, const char *); 437 438 /* Generic minisymbol routines. */ 439 extern long _bfd_generic_read_minisymbols 440 (bfd *, bfd_boolean, void **, unsigned int *); 441 extern asymbol *_bfd_generic_minisymbol_to_symbol 442 (bfd *, bfd_boolean, const void *, asymbol *); 443 444 /* Find the nearest line using .stab/.stabstr sections. */ 445 extern bfd_boolean _bfd_stab_section_find_nearest_line 446 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *, 447 const char **, const char **, unsigned int *, void **); 448 449 /* Find the nearest line using DWARF 1 debugging information. */ 450 extern bfd_boolean _bfd_dwarf1_find_nearest_line 451 (bfd *, asection *, asymbol **, bfd_vma, const char **, 452 const char **, unsigned int *); 453 454 /* Find the nearest line using DWARF 2 debugging information. */ 455 extern bfd_boolean _bfd_dwarf2_find_nearest_line 456 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **, 457 unsigned int *, unsigned int, void **); 458 459 /* Find the line using DWARF 2 debugging information. */ 460 extern bfd_boolean _bfd_dwarf2_find_line 461 (bfd *, asymbol **, asymbol *, const char **, 462 unsigned int *, unsigned int, void **); 463 464 bfd_boolean _bfd_generic_find_line 465 (bfd *, asymbol **, asymbol *, const char **, unsigned int *); 466 467 /* Find inliner info after calling bfd_find_nearest_line. */ 468 extern bfd_boolean _bfd_dwarf2_find_inliner_info 469 (bfd *, const char **, const char **, unsigned int *, void **); 470 471 /* Create a new section entry. */ 472 extern struct bfd_hash_entry *bfd_section_hash_newfunc 473 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 474 475 /* A routine to create entries for a bfd_link_hash_table. */ 476 extern struct bfd_hash_entry *_bfd_link_hash_newfunc 477 (struct bfd_hash_entry *entry, struct bfd_hash_table *table, 478 const char *string); 479 480 /* Initialize a bfd_link_hash_table. */ 481 extern bfd_boolean _bfd_link_hash_table_init 482 (struct bfd_link_hash_table *, bfd *, 483 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 484 struct bfd_hash_table *, 485 const char *), 486 unsigned int); 487 488 /* Generic link hash table creation routine. */ 489 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create 490 (bfd *); 491 492 /* Generic link hash table destruction routine. */ 493 extern void _bfd_generic_link_hash_table_free 494 (struct bfd_link_hash_table *); 495 496 /* Generic add symbol routine. */ 497 extern bfd_boolean _bfd_generic_link_add_symbols 498 (bfd *, struct bfd_link_info *); 499 500 /* Generic add symbol routine. This version is used by targets for 501 which the linker must collect constructors and destructors by name, 502 as the collect2 program does. */ 503 extern bfd_boolean _bfd_generic_link_add_symbols_collect 504 (bfd *, struct bfd_link_info *); 505 506 /* Generic archive add symbol routine. */ 507 extern bfd_boolean _bfd_generic_link_add_archive_symbols 508 (bfd *, struct bfd_link_info *, 509 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *)); 510 511 /* Forward declaration to avoid prototype errors. */ 512 typedef struct bfd_link_hash_entry _bfd_link_hash_entry; 513 514 /* Generic routine to add a single symbol. */ 515 extern bfd_boolean _bfd_generic_link_add_one_symbol 516 (struct bfd_link_info *, bfd *, const char *name, flagword, 517 asection *, bfd_vma, const char *, bfd_boolean copy, 518 bfd_boolean constructor, struct bfd_link_hash_entry **); 519 520 /* Generic routine to mark section as supplying symbols only. */ 521 extern void _bfd_generic_link_just_syms 522 (asection *, struct bfd_link_info *); 523 524 /* Generic link routine. */ 525 extern bfd_boolean _bfd_generic_final_link 526 (bfd *, struct bfd_link_info *); 527 528 extern bfd_boolean _bfd_generic_link_split_section 529 (bfd *, struct bfd_section *); 530 531 extern void _bfd_generic_section_already_linked 532 (bfd *, struct bfd_section *, struct bfd_link_info *); 533 534 /* Generic reloc_link_order processing routine. */ 535 extern bfd_boolean _bfd_generic_reloc_link_order 536 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 537 538 /* Default link order processing routine. */ 539 extern bfd_boolean _bfd_default_link_order 540 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 541 542 /* Count the number of reloc entries in a link order list. */ 543 extern unsigned int _bfd_count_link_order_relocs 544 (struct bfd_link_order *); 545 546 /* Final link relocation routine. */ 547 extern bfd_reloc_status_type _bfd_final_link_relocate 548 (reloc_howto_type *, bfd *, asection *, bfd_byte *, 549 bfd_vma, bfd_vma, bfd_vma); 550 551 /* Relocate a particular location by a howto and a value. */ 552 extern bfd_reloc_status_type _bfd_relocate_contents 553 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *); 554 555 /* Clear a given location using a given howto. */ 556 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd, 557 bfd_byte *location); 558 559 /* Link stabs in sections in the first pass. */ 560 561 extern bfd_boolean _bfd_link_section_stabs 562 (bfd *, struct stab_info *, asection *, asection *, void **, 563 bfd_size_type *); 564 565 /* Eliminate stabs for discarded functions and symbols. */ 566 extern bfd_boolean _bfd_discard_section_stabs 567 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *); 568 569 /* Write out the .stab section when linking stabs in sections. */ 570 571 extern bfd_boolean _bfd_write_section_stabs 572 (bfd *, struct stab_info *, asection *, void **, bfd_byte *); 573 574 /* Write out the .stabstr string table when linking stabs in sections. */ 575 576 extern bfd_boolean _bfd_write_stab_strings 577 (bfd *, struct stab_info *); 578 579 /* Find an offset within a .stab section when linking stabs in 580 sections. */ 581 582 extern bfd_vma _bfd_stab_section_offset 583 (asection *, void *, bfd_vma); 584 585 /* Register a SEC_MERGE section as a candidate for merging. */ 586 587 extern bfd_boolean _bfd_add_merge_section 588 (bfd *, void **, asection *, void **); 589 590 /* Attempt to merge SEC_MERGE sections. */ 591 592 extern bfd_boolean _bfd_merge_sections 593 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *)); 594 595 /* Write out a merged section. */ 596 597 extern bfd_boolean _bfd_write_merged_section 598 (bfd *, asection *, void *); 599 600 /* Find an offset within a modified SEC_MERGE section. */ 601 602 extern bfd_vma _bfd_merged_section_offset 603 (bfd *, asection **, void *, bfd_vma); 604 605 /* Create a string table. */ 606 extern struct bfd_strtab_hash *_bfd_stringtab_init 607 (void); 608 609 /* Create an XCOFF .debug section style string table. */ 610 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init 611 (void); 612 613 /* Free a string table. */ 614 extern void _bfd_stringtab_free 615 (struct bfd_strtab_hash *); 616 617 /* Get the size of a string table. */ 618 extern bfd_size_type _bfd_stringtab_size 619 (struct bfd_strtab_hash *); 620 621 /* Add a string to a string table. */ 622 extern bfd_size_type _bfd_stringtab_add 623 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy); 624 625 /* Write out a string table. */ 626 extern bfd_boolean _bfd_stringtab_emit 627 (bfd *, struct bfd_strtab_hash *); 628 629 /* Check that endianness of input and output file match. */ 630 extern bfd_boolean _bfd_generic_verify_endian_match 631 (bfd *, bfd *); 632 633 /* Macros to tell if bfds are read or write enabled. 634 635 Note that bfds open for read may be scribbled into if the fd passed 636 to bfd_fdopenr is actually open both for read and write 637 simultaneously. However an output bfd will never be open for 638 read. Therefore sometimes you want to check bfd_read_p or 639 !bfd_read_p, and only sometimes bfd_write_p. 640 */ 641 642 #define bfd_read_p(abfd) \ 643 ((abfd)->direction == read_direction || (abfd)->direction == both_direction) 644 #define bfd_write_p(abfd) \ 645 ((abfd)->direction == write_direction || (abfd)->direction == both_direction) 646 647 void bfd_assert 648 (const char*,int); 649 650 #define BFD_ASSERT(x) \ 651 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0) 652 653 #define BFD_FAIL() \ 654 do { bfd_assert(__FILE__,__LINE__); } while (0) 655 656 extern void _bfd_abort 657 (const char *, int, const char *) ATTRIBUTE_NORETURN; 658 659 /* if gcc >= 2.6, we can give a function name, too */ 660 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) 661 #define __PRETTY_FUNCTION__ ((char *) NULL) 662 #endif 663 664 #undef abort 665 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) 666 667 /* Manipulate a system FILE but using BFD's "file_ptr", rather than 668 the system "off_t" or "off64_t", as the offset. */ 669 extern file_ptr real_ftell (FILE *file); 670 extern int real_fseek (FILE *file, file_ptr offset, int whence); 671 extern FILE *real_fopen (const char *filename, const char *modes); 672 673 /* List of supported target vectors, and the default vector (if 674 bfd_default_vector[0] is NULL, there is no default). */ 675 extern const bfd_target * const *bfd_target_vector; 676 extern const bfd_target *bfd_default_vector[]; 677 678 /* List of associated target vectors. */ 679 extern const bfd_target * const *bfd_associated_vector; 680 681 /* Functions shared by the ECOFF and MIPS ELF backends, which have no 682 other common header files. */ 683 684 #if defined(__STDC__) || defined(ALMOST_STDC) 685 struct ecoff_find_line; 686 #endif 687 688 extern bfd_boolean _bfd_ecoff_locate_line 689 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const, 690 const struct ecoff_debug_swap * const, struct ecoff_find_line *, 691 const char **, const char **, unsigned int *); 692 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr 693 (void *, bfd_byte *); 694 extern bfd_boolean _bfd_ecoff_get_accumulated_sym 695 (void *, bfd_byte *); 696 extern bfd_boolean _bfd_ecoff_get_accumulated_ss 697 (void *, bfd_byte *); 698 699 extern bfd_vma _bfd_get_gp_value 700 (bfd *); 701 extern void _bfd_set_gp_value 702 (bfd *, bfd_vma); 703 704 /* Function shared by the COFF and ELF SH backends, which have no 705 other common header files. */ 706 707 #ifndef _bfd_sh_align_load_span 708 extern bfd_boolean _bfd_sh_align_load_span 709 (bfd *, asection *, bfd_byte *, 710 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), 711 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *); 712 #endif 713 714 /* This is the shape of the elements inside the already_linked hash 715 table. It maps a name onto a list of already_linked elements with 716 the same name. */ 717 718 struct bfd_section_already_linked_hash_entry 719 { 720 struct bfd_hash_entry root; 721 struct bfd_section_already_linked *entry; 722 }; 723 724 struct bfd_section_already_linked 725 { 726 struct bfd_section_already_linked *next; 727 asection *sec; 728 }; 729 730 extern struct bfd_section_already_linked_hash_entry * 731 bfd_section_already_linked_table_lookup (const char *); 732 extern bfd_boolean bfd_section_already_linked_table_insert 733 (struct bfd_section_already_linked_hash_entry *, asection *); 734 extern void bfd_section_already_linked_table_traverse 735 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *, 736 void *), void *); 737 738 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *); 739 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *); 740 741