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, 2008, 2009, 6 2010 7 Free Software Foundation, Inc. 8 9 Written by Cygnus Support. 10 11 This file is part of BFD, the Binary File Descriptor library. 12 13 This program is free software; you can redistribute it and/or modify 14 it under the terms of the GNU General Public License as published by 15 the Free Software Foundation; either version 3 of the License, or 16 (at your option) any later version. 17 18 This program is distributed in the hope that it will be useful, 19 but WITHOUT ANY WARRANTY; without even the implied warranty of 20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 GNU General Public License for more details. 22 23 You should have received a copy of the GNU General Public License 24 along with this program; if not, write to the Free Software 25 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 26 MA 02110-1301, USA. */ 27 28 #include "hashtab.h" 29 30 /* Align an address upward to a boundary, expressed as a number of bytes. 31 E.g. align to an 8-byte boundary with argument of 8. Take care never 32 to wrap around if the address is within boundary-1 of the end of the 33 address space. */ 34 #define BFD_ALIGN(this, boundary) \ 35 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \ 36 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \ 37 : ~ (bfd_vma) 0) 38 39 /* If you want to read and write large blocks, you might want to do it 40 in quanta of this amount */ 41 #define DEFAULT_BUFFERSIZE 8192 42 43 /* Set a tdata field. Can't use the other macros for this, since they 44 do casts, and casting to the left of assignment isn't portable. */ 45 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v)) 46 47 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points 48 to an instance of this structure. */ 49 50 struct bfd_in_memory 51 { 52 /* Size of buffer. */ 53 bfd_size_type size; 54 /* Buffer holding contents of BFD. */ 55 bfd_byte *buffer; 56 }; 57 58 struct section_hash_entry 59 { 60 struct bfd_hash_entry root; 61 asection section; 62 }; 63 64 /* tdata for an archive. For an input archive, cache 65 needs to be free()'d. For an output archive, symdefs do. */ 66 67 struct artdata { 68 file_ptr first_file_filepos; 69 /* Speed up searching the armap */ 70 htab_t cache; 71 bfd *archive_head; /* Only interesting in output routines */ 72 carsym *symdefs; /* the symdef entries */ 73 symindex symdef_count; /* how many there are */ 74 char *extended_names; /* clever intel extension */ 75 bfd_size_type extended_names_size; /* Size of extended names */ 76 /* when more compilers are standard C, this can be a time_t */ 77 long armap_timestamp; /* Timestamp value written into armap. 78 This is used for BSD archives to check 79 that the timestamp is recent enough 80 for the BSD linker to not complain, 81 just before we finish writing an 82 archive. */ 83 file_ptr armap_datepos; /* Position within archive to seek to 84 rewrite the date field. */ 85 void *tdata; /* Backend specific information. */ 86 }; 87 88 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data) 89 90 /* Goes in bfd's arelt_data slot */ 91 struct areltdata { 92 char * arch_header; /* it's actually a string */ 93 unsigned int parsed_size; /* octets of filesize not including ar_hdr */ 94 unsigned int extra_size; /* BSD4.4: extra bytes after the header. */ 95 char *filename; /* null-terminated */ 96 file_ptr origin; /* for element of a thin archive */ 97 }; 98 99 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size) 100 101 extern void *bfd_malloc 102 (bfd_size_type); 103 extern void *bfd_realloc 104 (void *, bfd_size_type); 105 extern void *bfd_realloc_or_free 106 (void *, bfd_size_type); 107 extern void *bfd_zmalloc 108 (bfd_size_type); 109 extern void *bfd_malloc2 110 (bfd_size_type, bfd_size_type); 111 extern void *bfd_realloc2 112 (void *, bfd_size_type, bfd_size_type); 113 extern void *bfd_zmalloc2 114 (bfd_size_type, bfd_size_type); 115 116 extern void _bfd_default_error_handler (const char *s, ...); 117 extern bfd_error_handler_type _bfd_error_handler; 118 119 /* These routines allocate and free things on the BFD's objalloc. */ 120 121 extern void *bfd_alloc2 122 (bfd *, bfd_size_type, bfd_size_type); 123 extern void *bfd_zalloc2 124 (bfd *, bfd_size_type, bfd_size_type); 125 extern void bfd_release 126 (bfd *, void *); 127 128 bfd * _bfd_create_empty_archive_element_shell 129 (bfd *obfd); 130 bfd * _bfd_look_for_bfd_in_cache 131 (bfd *, file_ptr); 132 bfd_boolean _bfd_add_bfd_to_archive_cache 133 (bfd *, file_ptr, bfd *); 134 bfd_boolean _bfd_generic_mkarchive 135 (bfd *abfd); 136 char *_bfd_append_relative_path 137 (bfd *arch, char *elt_name); 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 extern bfd_boolean _bfd_generic_write_ar_hdr 211 (bfd *, bfd *); 212 213 extern bfd_boolean _bfd_bsd44_write_ar_hdr 214 (bfd *, bfd *); 215 216 bfd * bfd_generic_openr_next_archived_file 217 (bfd *archive, bfd *last_file); 218 219 int bfd_generic_stat_arch_elt 220 (bfd *, struct stat *); 221 222 #define _bfd_read_ar_hdr(abfd) \ 223 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd)) 224 #define _bfd_write_ar_hdr(archive, abfd) \ 225 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd)) 226 227 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use 228 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */ 229 230 #define _bfd_generic_close_and_cleanup bfd_true 231 #define _bfd_generic_bfd_free_cached_info bfd_true 232 extern bfd_boolean _bfd_generic_new_section_hook 233 (bfd *, asection *); 234 extern bfd_boolean _bfd_generic_get_section_contents 235 (bfd *, asection *, void *, file_ptr, bfd_size_type); 236 extern bfd_boolean _bfd_generic_get_section_contents_in_window 237 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type); 238 239 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use 240 BFD_JUMP_TABLE_COPY (_bfd_generic). */ 241 242 #define _bfd_generic_bfd_copy_private_bfd_data \ 243 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 244 #define _bfd_generic_bfd_merge_private_bfd_data \ 245 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 246 #define _bfd_generic_bfd_set_private_flags \ 247 ((bfd_boolean (*) (bfd *, flagword)) bfd_true) 248 #define _bfd_generic_bfd_copy_private_section_data \ 249 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true) 250 #define _bfd_generic_bfd_copy_private_symbol_data \ 251 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true) 252 #define _bfd_generic_bfd_copy_private_header_data \ 253 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 254 #define _bfd_generic_bfd_print_private_bfd_data \ 255 ((bfd_boolean (*) (bfd *, void *)) bfd_true) 256 257 extern bfd_boolean _bfd_generic_init_private_section_data 258 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *); 259 260 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file 261 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */ 262 263 extern char *_bfd_nocore_core_file_failing_command 264 (bfd *); 265 extern int _bfd_nocore_core_file_failing_signal 266 (bfd *); 267 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p 268 (bfd *, bfd *); 269 extern int _bfd_nocore_core_file_pid 270 (bfd *); 271 272 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive 273 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */ 274 275 #define _bfd_noarchive_slurp_armap bfd_false 276 #define _bfd_noarchive_slurp_extended_name_table bfd_false 277 #define _bfd_noarchive_construct_extended_name_table \ 278 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \ 279 bfd_false) 280 #define _bfd_noarchive_truncate_arname \ 281 ((void (*) (bfd *, const char *, char *)) bfd_void) 282 #define _bfd_noarchive_write_armap \ 283 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \ 284 bfd_false) 285 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr 286 #define _bfd_noarchive_write_ar_hdr \ 287 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false) 288 #define _bfd_noarchive_openr_next_archived_file \ 289 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr) 290 #define _bfd_noarchive_get_elt_at_index \ 291 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr) 292 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt 293 #define _bfd_noarchive_update_armap_timestamp bfd_false 294 295 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style 296 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */ 297 298 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap 299 #define _bfd_archive_bsd_slurp_extended_name_table \ 300 _bfd_slurp_extended_name_table 301 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table 302 (bfd *, char **, bfd_size_type *, const char **); 303 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname 304 #define _bfd_archive_bsd_write_armap bsd_write_armap 305 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr 306 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr 307 #define _bfd_archive_bsd_openr_next_archived_file \ 308 bfd_generic_openr_next_archived_file 309 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index 310 #define _bfd_archive_bsd_generic_stat_arch_elt \ 311 bfd_generic_stat_arch_elt 312 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp 313 (bfd *); 314 315 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style 316 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */ 317 318 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap 319 #define _bfd_archive_coff_slurp_extended_name_table \ 320 _bfd_slurp_extended_name_table 321 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table 322 (bfd *, char **, bfd_size_type *, const char **); 323 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname 324 #define _bfd_archive_coff_write_armap coff_write_armap 325 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr 326 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr 327 #define _bfd_archive_coff_openr_next_archived_file \ 328 bfd_generic_openr_next_archived_file 329 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index 330 #define _bfd_archive_coff_generic_stat_arch_elt \ 331 bfd_generic_stat_arch_elt 332 #define _bfd_archive_coff_update_armap_timestamp bfd_true 333 334 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style 335 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */ 336 337 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap 338 #define _bfd_archive_bsd44_slurp_extended_name_table \ 339 _bfd_slurp_extended_name_table 340 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table 341 (bfd *, char **, bfd_size_type *, const char **); 342 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname 343 #define _bfd_archive_bsd44_write_armap bsd_write_armap 344 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr 345 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr 346 #define _bfd_archive_bsd44_openr_next_archived_file \ 347 bfd_generic_openr_next_archived_file 348 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index 349 #define _bfd_archive_bsd44_generic_stat_arch_elt \ 350 bfd_generic_stat_arch_elt 351 #define _bfd_archive_bsd44_update_armap_timestamp \ 352 _bfd_archive_bsd_update_armap_timestamp 353 354 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style 355 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them 356 are irrelevant and never called, so defined as NULL. */ 357 358 extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch); 359 #define _bfd_vms_lib_slurp_armap NULL 360 #define _bfd_vms_lib_slurp_extended_name_table NULL 361 #define _bfd_vms_lib_construct_extended_name_table NULL 362 #define _bfd_vms_lib_truncate_arname NULL 363 #define _bfd_vms_lib_write_armap NULL 364 #define _bfd_vms_lib_read_ar_hdr NULL 365 #define _bfd_vms_lib_write_ar_hdr NULL 366 extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *); 367 extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex); 368 extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *); 369 #define _bfd_vms_lib_update_armap_timestamp bfd_true 370 371 /* Extra routines for VMS style archives. */ 372 373 extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *); 374 extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *); 375 extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd); 376 extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd); 377 extern bfd_boolean _bfd_vms_lib_alpha_mkarchive (bfd *abfd); 378 extern bfd_boolean _bfd_vms_lib_ia64_mkarchive (bfd *abfd); 379 380 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol 381 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */ 382 383 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1 384 #define _bfd_nosymbols_canonicalize_symtab \ 385 ((long (*) (bfd *, asymbol **)) _bfd_n1) 386 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol 387 #define _bfd_nosymbols_print_symbol \ 388 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void) 389 #define _bfd_nosymbols_get_symbol_info \ 390 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void) 391 #define _bfd_nosymbols_bfd_is_local_label_name \ 392 ((bfd_boolean (*) (bfd *, const char *)) bfd_false) 393 #define _bfd_nosymbols_bfd_is_target_special_symbol \ 394 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 395 #define _bfd_nosymbols_get_lineno \ 396 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr) 397 #define _bfd_nosymbols_find_nearest_line \ 398 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \ 399 const char **, unsigned int *)) \ 400 bfd_false) 401 #define _bfd_nosymbols_find_inliner_info \ 402 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \ 403 bfd_false) 404 #define _bfd_nosymbols_bfd_make_debug_symbol \ 405 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 406 #define _bfd_nosymbols_read_minisymbols \ 407 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1) 408 #define _bfd_nosymbols_minisymbol_to_symbol \ 409 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \ 410 bfd_nullvoidptr) 411 412 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc 413 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */ 414 415 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *); 416 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *, 417 arelent **, asymbol **); 418 #define _bfd_norelocs_bfd_reloc_type_lookup \ 419 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr) 420 #define _bfd_norelocs_bfd_reloc_name_lookup \ 421 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr) 422 423 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not 424 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */ 425 426 #define _bfd_nowrite_set_arch_mach \ 427 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \ 428 bfd_false) 429 #define _bfd_nowrite_set_section_contents \ 430 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \ 431 bfd_false) 432 433 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use 434 BFD_JUMP_TABLE_WRITE (_bfd_generic). */ 435 436 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach 437 extern bfd_boolean _bfd_generic_set_section_contents 438 (bfd *, asection *, const void *, file_ptr, bfd_size_type); 439 440 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not 441 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */ 442 443 #define _bfd_nolink_sizeof_headers \ 444 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0) 445 #define _bfd_nolink_bfd_get_relocated_section_contents \ 446 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \ 447 bfd_byte *, bfd_boolean, asymbol **)) \ 448 bfd_nullvoidptr) 449 #define _bfd_nolink_bfd_relax_section \ 450 ((bfd_boolean (*) \ 451 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \ 452 bfd_false) 453 #define _bfd_nolink_bfd_gc_sections \ 454 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 455 bfd_false) 456 #define _bfd_nolink_bfd_merge_sections \ 457 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 458 bfd_false) 459 #define _bfd_nolink_bfd_is_group_section \ 460 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \ 461 bfd_false) 462 #define _bfd_nolink_bfd_discard_group \ 463 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \ 464 bfd_false) 465 #define _bfd_nolink_bfd_link_hash_table_create \ 466 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr) 467 #define _bfd_nolink_bfd_link_hash_table_free \ 468 ((void (*) (struct bfd_link_hash_table *)) bfd_void) 469 #define _bfd_nolink_bfd_link_add_symbols \ 470 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 471 #define _bfd_nolink_bfd_link_just_syms \ 472 ((void (*) (asection *, struct bfd_link_info *)) bfd_void) 473 #define _bfd_nolink_bfd_copy_link_hash_symbol_type \ 474 ((void (*) (bfd *, struct bfd_link_hash_entry *, \ 475 struct bfd_link_hash_entry *)) bfd_void) 476 #define _bfd_nolink_bfd_final_link \ 477 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 478 #define _bfd_nolink_bfd_link_split_section \ 479 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false) 480 #define _bfd_nolink_section_already_linked \ 481 ((void (*) (bfd *, struct bfd_section *, struct bfd_link_info *)) bfd_void) 482 #define _bfd_nolink_bfd_define_common_symbol \ 483 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \ 484 struct bfd_link_hash_entry *)) bfd_false) 485 486 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not 487 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC 488 (_bfd_nodynamic). */ 489 490 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1 491 #define _bfd_nodynamic_canonicalize_dynamic_symtab \ 492 ((long (*) (bfd *, asymbol **)) _bfd_n1) 493 #define _bfd_nodynamic_get_synthetic_symtab \ 494 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1) 495 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1 496 #define _bfd_nodynamic_canonicalize_dynamic_reloc \ 497 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1) 498 499 /* Generic routine to determine of the given symbol is a local 500 label. */ 501 extern bfd_boolean bfd_generic_is_local_label_name 502 (bfd *, const char *); 503 504 /* Generic minisymbol routines. */ 505 extern long _bfd_generic_read_minisymbols 506 (bfd *, bfd_boolean, void **, unsigned int *); 507 extern asymbol *_bfd_generic_minisymbol_to_symbol 508 (bfd *, bfd_boolean, const void *, asymbol *); 509 510 /* Find the nearest line using .stab/.stabstr sections. */ 511 extern bfd_boolean _bfd_stab_section_find_nearest_line 512 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *, 513 const char **, const char **, unsigned int *, void **); 514 515 /* Find the nearest line using DWARF 1 debugging information. */ 516 extern bfd_boolean _bfd_dwarf1_find_nearest_line 517 (bfd *, asection *, asymbol **, bfd_vma, const char **, 518 const char **, unsigned int *); 519 520 /* Find the nearest line using DWARF 2 debugging information. */ 521 extern bfd_boolean _bfd_dwarf2_find_nearest_line 522 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **, 523 unsigned int *, unsigned int, void **); 524 525 /* Find the line using DWARF 2 debugging information. */ 526 extern bfd_boolean _bfd_dwarf2_find_line 527 (bfd *, asymbol **, asymbol *, const char **, 528 unsigned int *, unsigned int, void **); 529 530 bfd_boolean _bfd_generic_find_line 531 (bfd *, asymbol **, asymbol *, const char **, unsigned int *); 532 533 /* Find inliner info after calling bfd_find_nearest_line. */ 534 extern bfd_boolean _bfd_dwarf2_find_inliner_info 535 (bfd *, const char **, const char **, unsigned int *, void **); 536 537 /* Create a new section entry. */ 538 extern struct bfd_hash_entry *bfd_section_hash_newfunc 539 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 540 541 /* A routine to create entries for a bfd_link_hash_table. */ 542 extern struct bfd_hash_entry *_bfd_link_hash_newfunc 543 (struct bfd_hash_entry *entry, struct bfd_hash_table *table, 544 const char *string); 545 546 /* Initialize a bfd_link_hash_table. */ 547 extern bfd_boolean _bfd_link_hash_table_init 548 (struct bfd_link_hash_table *, bfd *, 549 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 550 struct bfd_hash_table *, 551 const char *), 552 unsigned int); 553 554 /* Generic link hash table creation routine. */ 555 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create 556 (bfd *); 557 558 /* Generic link hash table destruction routine. */ 559 extern void _bfd_generic_link_hash_table_free 560 (struct bfd_link_hash_table *); 561 562 /* Generic add symbol routine. */ 563 extern bfd_boolean _bfd_generic_link_add_symbols 564 (bfd *, struct bfd_link_info *); 565 566 /* Generic add symbol routine. This version is used by targets for 567 which the linker must collect constructors and destructors by name, 568 as the collect2 program does. */ 569 extern bfd_boolean _bfd_generic_link_add_symbols_collect 570 (bfd *, struct bfd_link_info *); 571 572 /* Generic archive add symbol routine. */ 573 extern bfd_boolean _bfd_generic_link_add_archive_symbols 574 (bfd *, struct bfd_link_info *, 575 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *)); 576 577 /* Forward declaration to avoid prototype errors. */ 578 typedef struct bfd_link_hash_entry _bfd_link_hash_entry; 579 580 /* Generic routine to add a single symbol. */ 581 extern bfd_boolean _bfd_generic_link_add_one_symbol 582 (struct bfd_link_info *, bfd *, const char *name, flagword, 583 asection *, bfd_vma, const char *, bfd_boolean copy, 584 bfd_boolean constructor, struct bfd_link_hash_entry **); 585 586 /* Generic routine to mark section as supplying symbols only. */ 587 extern void _bfd_generic_link_just_syms 588 (asection *, struct bfd_link_info *); 589 590 /* Generic routine that does nothing. */ 591 extern void _bfd_generic_copy_link_hash_symbol_type 592 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *); 593 594 /* Generic link routine. */ 595 extern bfd_boolean _bfd_generic_final_link 596 (bfd *, struct bfd_link_info *); 597 598 extern bfd_boolean _bfd_generic_link_split_section 599 (bfd *, struct bfd_section *); 600 601 extern void _bfd_generic_section_already_linked 602 (bfd *, struct bfd_section *, struct bfd_link_info *); 603 604 /* Generic reloc_link_order processing routine. */ 605 extern bfd_boolean _bfd_generic_reloc_link_order 606 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 607 608 /* Default link order processing routine. */ 609 extern bfd_boolean _bfd_default_link_order 610 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 611 612 /* Count the number of reloc entries in a link order list. */ 613 extern unsigned int _bfd_count_link_order_relocs 614 (struct bfd_link_order *); 615 616 /* Final link relocation routine. */ 617 extern bfd_reloc_status_type _bfd_final_link_relocate 618 (reloc_howto_type *, bfd *, asection *, bfd_byte *, 619 bfd_vma, bfd_vma, bfd_vma); 620 621 /* Relocate a particular location by a howto and a value. */ 622 extern bfd_reloc_status_type _bfd_relocate_contents 623 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *); 624 625 /* Clear a given location using a given howto. */ 626 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd, 627 asection *input_section, bfd_byte *location); 628 629 /* Link stabs in sections in the first pass. */ 630 631 extern bfd_boolean _bfd_link_section_stabs 632 (bfd *, struct stab_info *, asection *, asection *, void **, 633 bfd_size_type *); 634 635 /* Eliminate stabs for discarded functions and symbols. */ 636 extern bfd_boolean _bfd_discard_section_stabs 637 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *); 638 639 /* Write out the .stab section when linking stabs in sections. */ 640 641 extern bfd_boolean _bfd_write_section_stabs 642 (bfd *, struct stab_info *, asection *, void **, bfd_byte *); 643 644 /* Write out the .stabstr string table when linking stabs in sections. */ 645 646 extern bfd_boolean _bfd_write_stab_strings 647 (bfd *, struct stab_info *); 648 649 /* Find an offset within a .stab section when linking stabs in 650 sections. */ 651 652 extern bfd_vma _bfd_stab_section_offset 653 (asection *, void *, bfd_vma); 654 655 /* Register a SEC_MERGE section as a candidate for merging. */ 656 657 extern bfd_boolean _bfd_add_merge_section 658 (bfd *, void **, asection *, void **); 659 660 /* Attempt to merge SEC_MERGE sections. */ 661 662 extern bfd_boolean _bfd_merge_sections 663 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *)); 664 665 /* Write out a merged section. */ 666 667 extern bfd_boolean _bfd_write_merged_section 668 (bfd *, asection *, void *); 669 670 /* Find an offset within a modified SEC_MERGE section. */ 671 672 extern bfd_vma _bfd_merged_section_offset 673 (bfd *, asection **, void *, bfd_vma); 674 675 /* Create a string table. */ 676 extern struct bfd_strtab_hash *_bfd_stringtab_init 677 (void); 678 679 /* Create an XCOFF .debug section style string table. */ 680 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init 681 (void); 682 683 /* Free a string table. */ 684 extern void _bfd_stringtab_free 685 (struct bfd_strtab_hash *); 686 687 /* Get the size of a string table. */ 688 extern bfd_size_type _bfd_stringtab_size 689 (struct bfd_strtab_hash *); 690 691 /* Add a string to a string table. */ 692 extern bfd_size_type _bfd_stringtab_add 693 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy); 694 695 /* Write out a string table. */ 696 extern bfd_boolean _bfd_stringtab_emit 697 (bfd *, struct bfd_strtab_hash *); 698 699 /* Check that endianness of input and output file match. */ 700 extern bfd_boolean _bfd_generic_verify_endian_match 701 (bfd *, bfd *); 702 703 /* Macros to tell if bfds are read or write enabled. 704 705 Note that bfds open for read may be scribbled into if the fd passed 706 to bfd_fdopenr is actually open both for read and write 707 simultaneously. However an output bfd will never be open for 708 read. Therefore sometimes you want to check bfd_read_p or 709 !bfd_read_p, and only sometimes bfd_write_p. 710 */ 711 712 #define bfd_read_p(abfd) \ 713 ((abfd)->direction == read_direction || (abfd)->direction == both_direction) 714 #define bfd_write_p(abfd) \ 715 ((abfd)->direction == write_direction || (abfd)->direction == both_direction) 716 717 void bfd_assert 718 (const char*,int); 719 720 #define BFD_ASSERT(x) \ 721 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0) 722 723 #define BFD_FAIL() \ 724 do { bfd_assert(__FILE__,__LINE__); } while (0) 725 726 extern void _bfd_abort 727 (const char *, int, const char *) ATTRIBUTE_NORETURN; 728 729 /* if gcc >= 2.6, we can give a function name, too */ 730 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) 731 #define __PRETTY_FUNCTION__ ((char *) NULL) 732 #endif 733 734 #undef abort 735 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) 736 737 /* Manipulate a system FILE but using BFD's "file_ptr", rather than 738 the system "off_t" or "off64_t", as the offset. */ 739 extern file_ptr real_ftell (FILE *file); 740 extern int real_fseek (FILE *file, file_ptr offset, int whence); 741 extern FILE *real_fopen (const char *filename, const char *modes); 742 743 /* List of supported target vectors, and the default vector (if 744 bfd_default_vector[0] is NULL, there is no default). */ 745 extern const bfd_target * const *bfd_target_vector; 746 extern const bfd_target *bfd_default_vector[]; 747 748 /* List of associated target vectors. */ 749 extern const bfd_target * const *bfd_associated_vector; 750 751 /* Functions shared by the ECOFF and MIPS ELF backends, which have no 752 other common header files. */ 753 754 #if defined(__STDC__) || defined(ALMOST_STDC) 755 struct ecoff_find_line; 756 #endif 757 758 extern bfd_boolean _bfd_ecoff_locate_line 759 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const, 760 const struct ecoff_debug_swap * const, struct ecoff_find_line *, 761 const char **, const char **, unsigned int *); 762 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr 763 (void *, bfd_byte *); 764 extern bfd_boolean _bfd_ecoff_get_accumulated_sym 765 (void *, bfd_byte *); 766 extern bfd_boolean _bfd_ecoff_get_accumulated_ss 767 (void *, bfd_byte *); 768 769 extern bfd_vma _bfd_get_gp_value 770 (bfd *); 771 extern void _bfd_set_gp_value 772 (bfd *, bfd_vma); 773 774 /* Function shared by the COFF and ELF SH backends, which have no 775 other common header files. */ 776 777 #ifndef _bfd_sh_align_load_span 778 extern bfd_boolean _bfd_sh_align_load_span 779 (bfd *, asection *, bfd_byte *, 780 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), 781 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *); 782 #endif 783 784 /* This is the shape of the elements inside the already_linked hash 785 table. It maps a name onto a list of already_linked elements with 786 the same name. */ 787 788 struct bfd_section_already_linked_hash_entry 789 { 790 struct bfd_hash_entry root; 791 struct bfd_section_already_linked *entry; 792 }; 793 794 struct bfd_section_already_linked 795 { 796 struct bfd_section_already_linked *next; 797 asection *sec; 798 }; 799 800 extern struct bfd_section_already_linked_hash_entry * 801 bfd_section_already_linked_table_lookup (const char *); 802 extern bfd_boolean bfd_section_already_linked_table_insert 803 (struct bfd_section_already_linked_hash_entry *, asection *); 804 extern void bfd_section_already_linked_table_traverse 805 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *, 806 void *), void *); 807 808 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *); 809 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *); 810 811 struct dwarf_debug_section 812 { 813 const char *uncompressed_name; 814 const char *compressed_name; 815 }; 816 817 /* Map of uncompressed DWARF debug section name to compressed one. It 818 is terminated by NULL uncompressed_name. */ 819 820 extern struct dwarf_debug_section dwarf_debug_sections[]; 821