libbfd-in.h revision 1.1
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 221 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */ 222 223 #define _bfd_generic_close_and_cleanup bfd_true 224 #define _bfd_generic_bfd_free_cached_info bfd_true 225 extern bfd_boolean _bfd_generic_new_section_hook 226 (bfd *, asection *); 227 extern bfd_boolean _bfd_generic_get_section_contents 228 (bfd *, asection *, void *, file_ptr, bfd_size_type); 229 extern bfd_boolean _bfd_generic_get_section_contents_in_window 230 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type); 231 232 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use 233 BFD_JUMP_TABLE_COPY (_bfd_generic). */ 234 235 #define _bfd_generic_bfd_copy_private_bfd_data \ 236 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 237 #define _bfd_generic_bfd_merge_private_bfd_data \ 238 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 239 #define _bfd_generic_bfd_set_private_flags \ 240 ((bfd_boolean (*) (bfd *, flagword)) bfd_true) 241 #define _bfd_generic_bfd_copy_private_section_data \ 242 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true) 243 #define _bfd_generic_bfd_copy_private_symbol_data \ 244 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true) 245 #define _bfd_generic_bfd_copy_private_header_data \ 246 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 247 #define _bfd_generic_bfd_print_private_bfd_data \ 248 ((bfd_boolean (*) (bfd *, void *)) bfd_true) 249 250 extern bfd_boolean _bfd_generic_init_private_section_data 251 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *); 252 253 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file 254 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */ 255 256 extern char *_bfd_nocore_core_file_failing_command 257 (bfd *); 258 extern int _bfd_nocore_core_file_failing_signal 259 (bfd *); 260 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p 261 (bfd *, bfd *); 262 263 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive 264 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */ 265 266 #define _bfd_noarchive_slurp_armap bfd_false 267 #define _bfd_noarchive_slurp_extended_name_table bfd_false 268 #define _bfd_noarchive_construct_extended_name_table \ 269 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \ 270 bfd_false) 271 #define _bfd_noarchive_truncate_arname \ 272 ((void (*) (bfd *, const char *, char *)) bfd_void) 273 #define _bfd_noarchive_write_armap \ 274 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \ 275 bfd_false) 276 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr 277 #define _bfd_noarchive_openr_next_archived_file \ 278 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr) 279 #define _bfd_noarchive_get_elt_at_index \ 280 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr) 281 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt 282 #define _bfd_noarchive_update_armap_timestamp bfd_false 283 284 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style 285 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */ 286 287 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap 288 #define _bfd_archive_bsd_slurp_extended_name_table \ 289 _bfd_slurp_extended_name_table 290 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table 291 (bfd *, char **, bfd_size_type *, const char **); 292 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname 293 #define _bfd_archive_bsd_write_armap bsd_write_armap 294 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr 295 #define _bfd_archive_bsd_openr_next_archived_file \ 296 bfd_generic_openr_next_archived_file 297 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index 298 #define _bfd_archive_bsd_generic_stat_arch_elt \ 299 bfd_generic_stat_arch_elt 300 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp 301 (bfd *); 302 303 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style 304 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */ 305 306 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap 307 #define _bfd_archive_coff_slurp_extended_name_table \ 308 _bfd_slurp_extended_name_table 309 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table 310 (bfd *, char **, bfd_size_type *, const char **); 311 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname 312 #define _bfd_archive_coff_write_armap coff_write_armap 313 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr 314 #define _bfd_archive_coff_openr_next_archived_file \ 315 bfd_generic_openr_next_archived_file 316 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index 317 #define _bfd_archive_coff_generic_stat_arch_elt \ 318 bfd_generic_stat_arch_elt 319 #define _bfd_archive_coff_update_armap_timestamp bfd_true 320 321 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol 322 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */ 323 324 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1 325 #define _bfd_nosymbols_canonicalize_symtab \ 326 ((long (*) (bfd *, asymbol **)) _bfd_n1) 327 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol 328 #define _bfd_nosymbols_print_symbol \ 329 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void) 330 #define _bfd_nosymbols_get_symbol_info \ 331 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void) 332 #define _bfd_nosymbols_bfd_is_local_label_name \ 333 ((bfd_boolean (*) (bfd *, const char *)) bfd_false) 334 #define _bfd_nosymbols_bfd_is_target_special_symbol \ 335 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 336 #define _bfd_nosymbols_get_lineno \ 337 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr) 338 #define _bfd_nosymbols_find_nearest_line \ 339 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \ 340 const char **, unsigned int *)) \ 341 bfd_false) 342 #define _bfd_nosymbols_find_inliner_info \ 343 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \ 344 bfd_false) 345 #define _bfd_nosymbols_bfd_make_debug_symbol \ 346 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 347 #define _bfd_nosymbols_read_minisymbols \ 348 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1) 349 #define _bfd_nosymbols_minisymbol_to_symbol \ 350 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \ 351 bfd_nullvoidptr) 352 353 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc 354 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */ 355 356 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *); 357 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *, 358 arelent **, asymbol **); 359 #define _bfd_norelocs_bfd_reloc_type_lookup \ 360 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr) 361 #define _bfd_norelocs_bfd_reloc_name_lookup \ 362 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr) 363 364 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not 365 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */ 366 367 #define _bfd_nowrite_set_arch_mach \ 368 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \ 369 bfd_false) 370 #define _bfd_nowrite_set_section_contents \ 371 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \ 372 bfd_false) 373 374 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use 375 BFD_JUMP_TABLE_WRITE (_bfd_generic). */ 376 377 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach 378 extern bfd_boolean _bfd_generic_set_section_contents 379 (bfd *, asection *, const void *, file_ptr, bfd_size_type); 380 381 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not 382 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */ 383 384 #define _bfd_nolink_sizeof_headers \ 385 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0) 386 #define _bfd_nolink_bfd_get_relocated_section_contents \ 387 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \ 388 bfd_byte *, bfd_boolean, asymbol **)) \ 389 bfd_nullvoidptr) 390 #define _bfd_nolink_bfd_relax_section \ 391 ((bfd_boolean (*) \ 392 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \ 393 bfd_false) 394 #define _bfd_nolink_bfd_gc_sections \ 395 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 396 bfd_false) 397 #define _bfd_nolink_bfd_merge_sections \ 398 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 399 bfd_false) 400 #define _bfd_nolink_bfd_is_group_section \ 401 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \ 402 bfd_false) 403 #define _bfd_nolink_bfd_discard_group \ 404 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \ 405 bfd_false) 406 #define _bfd_nolink_bfd_link_hash_table_create \ 407 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr) 408 #define _bfd_nolink_bfd_link_hash_table_free \ 409 ((void (*) (struct bfd_link_hash_table *)) bfd_void) 410 #define _bfd_nolink_bfd_link_add_symbols \ 411 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 412 #define _bfd_nolink_bfd_link_just_syms \ 413 ((void (*) (asection *, struct bfd_link_info *)) bfd_void) 414 #define _bfd_nolink_bfd_final_link \ 415 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 416 #define _bfd_nolink_bfd_link_split_section \ 417 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false) 418 #define _bfd_nolink_section_already_linked \ 419 ((void (*) (bfd *, struct bfd_section *, struct bfd_link_info *)) bfd_void) 420 421 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not 422 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC 423 (_bfd_nodynamic). */ 424 425 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1 426 #define _bfd_nodynamic_canonicalize_dynamic_symtab \ 427 ((long (*) (bfd *, asymbol **)) _bfd_n1) 428 #define _bfd_nodynamic_get_synthetic_symtab \ 429 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1) 430 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1 431 #define _bfd_nodynamic_canonicalize_dynamic_reloc \ 432 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1) 433 434 /* Generic routine to determine of the given symbol is a local 436 label. */ 437 extern bfd_boolean bfd_generic_is_local_label_name 438 (bfd *, const char *); 439 440 /* Generic minisymbol routines. */ 441 extern long _bfd_generic_read_minisymbols 442 (bfd *, bfd_boolean, void **, unsigned int *); 443 extern asymbol *_bfd_generic_minisymbol_to_symbol 444 (bfd *, bfd_boolean, const void *, asymbol *); 445 446 /* Find the nearest line using .stab/.stabstr sections. */ 447 extern bfd_boolean _bfd_stab_section_find_nearest_line 448 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *, 449 const char **, const char **, unsigned int *, void **); 450 451 /* Find the nearest line using DWARF 1 debugging information. */ 452 extern bfd_boolean _bfd_dwarf1_find_nearest_line 453 (bfd *, asection *, asymbol **, bfd_vma, const char **, 454 const char **, unsigned int *); 455 456 /* Find the nearest line using DWARF 2 debugging information. */ 457 extern bfd_boolean _bfd_dwarf2_find_nearest_line 458 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **, 459 unsigned int *, unsigned int, void **); 460 461 /* Find the line using DWARF 2 debugging information. */ 462 extern bfd_boolean _bfd_dwarf2_find_line 463 (bfd *, asymbol **, asymbol *, const char **, 464 unsigned int *, unsigned int, void **); 465 466 bfd_boolean _bfd_generic_find_line 467 (bfd *, asymbol **, asymbol *, const char **, unsigned int *); 468 469 /* Find inliner info after calling bfd_find_nearest_line. */ 470 extern bfd_boolean _bfd_dwarf2_find_inliner_info 471 (bfd *, const char **, const char **, unsigned int *, void **); 472 473 /* Create a new section entry. */ 474 extern struct bfd_hash_entry *bfd_section_hash_newfunc 475 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 476 477 /* A routine to create entries for a bfd_link_hash_table. */ 478 extern struct bfd_hash_entry *_bfd_link_hash_newfunc 479 (struct bfd_hash_entry *entry, struct bfd_hash_table *table, 480 const char *string); 481 482 /* Initialize a bfd_link_hash_table. */ 483 extern bfd_boolean _bfd_link_hash_table_init 484 (struct bfd_link_hash_table *, bfd *, 485 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 486 struct bfd_hash_table *, 487 const char *), 488 unsigned int); 489 490 /* Generic link hash table creation routine. */ 491 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create 492 (bfd *); 493 494 /* Generic link hash table destruction routine. */ 495 extern void _bfd_generic_link_hash_table_free 496 (struct bfd_link_hash_table *); 497 498 /* Generic add symbol routine. */ 499 extern bfd_boolean _bfd_generic_link_add_symbols 500 (bfd *, struct bfd_link_info *); 501 502 /* Generic add symbol routine. This version is used by targets for 503 which the linker must collect constructors and destructors by name, 504 as the collect2 program does. */ 505 extern bfd_boolean _bfd_generic_link_add_symbols_collect 506 (bfd *, struct bfd_link_info *); 507 508 /* Generic archive add symbol routine. */ 509 extern bfd_boolean _bfd_generic_link_add_archive_symbols 510 (bfd *, struct bfd_link_info *, 511 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *)); 512 513 /* Forward declaration to avoid prototype errors. */ 514 typedef struct bfd_link_hash_entry _bfd_link_hash_entry; 515 516 /* Generic routine to add a single symbol. */ 517 extern bfd_boolean _bfd_generic_link_add_one_symbol 518 (struct bfd_link_info *, bfd *, const char *name, flagword, 519 asection *, bfd_vma, const char *, bfd_boolean copy, 520 bfd_boolean constructor, struct bfd_link_hash_entry **); 521 522 /* Generic routine to mark section as supplying symbols only. */ 523 extern void _bfd_generic_link_just_syms 524 (asection *, struct bfd_link_info *); 525 526 /* Generic link routine. */ 527 extern bfd_boolean _bfd_generic_final_link 528 (bfd *, struct bfd_link_info *); 529 530 extern bfd_boolean _bfd_generic_link_split_section 531 (bfd *, struct bfd_section *); 532 533 extern void _bfd_generic_section_already_linked 534 (bfd *, struct bfd_section *, struct bfd_link_info *); 535 536 /* Generic reloc_link_order processing routine. */ 537 extern bfd_boolean _bfd_generic_reloc_link_order 538 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 539 540 /* Default link order processing routine. */ 541 extern bfd_boolean _bfd_default_link_order 542 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 543 544 /* Count the number of reloc entries in a link order list. */ 545 extern unsigned int _bfd_count_link_order_relocs 546 (struct bfd_link_order *); 547 548 /* Final link relocation routine. */ 549 extern bfd_reloc_status_type _bfd_final_link_relocate 550 (reloc_howto_type *, bfd *, asection *, bfd_byte *, 551 bfd_vma, bfd_vma, bfd_vma); 552 553 /* Relocate a particular location by a howto and a value. */ 554 extern bfd_reloc_status_type _bfd_relocate_contents 555 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *); 556 557 /* Clear a given location using a given howto. */ 558 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd, 559 bfd_byte *location); 560 561 /* Link stabs in sections in the first pass. */ 562 563 extern bfd_boolean _bfd_link_section_stabs 564 (bfd *, struct stab_info *, asection *, asection *, void **, 565 bfd_size_type *); 566 567 /* Eliminate stabs for discarded functions and symbols. */ 568 extern bfd_boolean _bfd_discard_section_stabs 569 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *); 570 571 /* Write out the .stab section when linking stabs in sections. */ 572 573 extern bfd_boolean _bfd_write_section_stabs 574 (bfd *, struct stab_info *, asection *, void **, bfd_byte *); 575 576 /* Write out the .stabstr string table when linking stabs in sections. */ 577 578 extern bfd_boolean _bfd_write_stab_strings 579 (bfd *, struct stab_info *); 580 581 /* Find an offset within a .stab section when linking stabs in 582 sections. */ 583 584 extern bfd_vma _bfd_stab_section_offset 585 (asection *, void *, bfd_vma); 586 587 /* Register a SEC_MERGE section as a candidate for merging. */ 588 589 extern bfd_boolean _bfd_add_merge_section 590 (bfd *, void **, asection *, void **); 591 592 /* Attempt to merge SEC_MERGE sections. */ 593 594 extern bfd_boolean _bfd_merge_sections 595 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *)); 596 597 /* Write out a merged section. */ 598 599 extern bfd_boolean _bfd_write_merged_section 600 (bfd *, asection *, void *); 601 602 /* Find an offset within a modified SEC_MERGE section. */ 603 604 extern bfd_vma _bfd_merged_section_offset 605 (bfd *, asection **, void *, bfd_vma); 606 607 /* Create a string table. */ 608 extern struct bfd_strtab_hash *_bfd_stringtab_init 609 (void); 610 611 /* Create an XCOFF .debug section style string table. */ 612 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init 613 (void); 614 615 /* Free a string table. */ 616 extern void _bfd_stringtab_free 617 (struct bfd_strtab_hash *); 618 619 /* Get the size of a string table. */ 620 extern bfd_size_type _bfd_stringtab_size 621 (struct bfd_strtab_hash *); 622 623 /* Add a string to a string table. */ 624 extern bfd_size_type _bfd_stringtab_add 625 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy); 626 627 /* Write out a string table. */ 628 extern bfd_boolean _bfd_stringtab_emit 629 (bfd *, struct bfd_strtab_hash *); 630 631 /* Check that endianness of input and output file match. */ 632 extern bfd_boolean _bfd_generic_verify_endian_match 633 (bfd *, bfd *); 634 635 /* Macros to tell if bfds are read or write enabled. 637 638 Note that bfds open for read may be scribbled into if the fd passed 639 to bfd_fdopenr is actually open both for read and write 640 simultaneously. However an output bfd will never be open for 641 read. Therefore sometimes you want to check bfd_read_p or 642 !bfd_read_p, and only sometimes bfd_write_p. 643 */ 644 645 #define bfd_read_p(abfd) \ 646 ((abfd)->direction == read_direction || (abfd)->direction == both_direction) 647 #define bfd_write_p(abfd) \ 648 ((abfd)->direction == write_direction || (abfd)->direction == both_direction) 649 650 void bfd_assert 651 (const char*,int); 652 653 #define BFD_ASSERT(x) \ 654 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0) 655 656 #define BFD_FAIL() \ 657 do { bfd_assert(__FILE__,__LINE__); } while (0) 658 659 extern void _bfd_abort 660 (const char *, int, const char *) ATTRIBUTE_NORETURN; 661 662 /* if gcc >= 2.6, we can give a function name, too */ 663 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) 664 #define __PRETTY_FUNCTION__ ((char *) NULL) 665 #endif 666 667 #undef abort 668 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) 669 670 /* Manipulate a system FILE but using BFD's "file_ptr", rather than 671 the system "off_t" or "off64_t", as the offset. */ 672 extern file_ptr real_ftell (FILE *file); 673 extern int real_fseek (FILE *file, file_ptr offset, int whence); 674 extern FILE *real_fopen (const char *filename, const char *modes); 675 676 /* List of supported target vectors, and the default vector (if 677 bfd_default_vector[0] is NULL, there is no default). */ 678 extern const bfd_target * const *bfd_target_vector; 679 extern const bfd_target *bfd_default_vector[]; 680 681 /* List of associated target vectors. */ 682 extern const bfd_target * const *bfd_associated_vector; 683 684 /* Functions shared by the ECOFF and MIPS ELF backends, which have no 685 other common header files. */ 686 687 #if defined(__STDC__) || defined(ALMOST_STDC) 688 struct ecoff_find_line; 689 #endif 690 691 extern bfd_boolean _bfd_ecoff_locate_line 692 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const, 693 const struct ecoff_debug_swap * const, struct ecoff_find_line *, 694 const char **, const char **, unsigned int *); 695 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr 696 (void *, bfd_byte *); 697 extern bfd_boolean _bfd_ecoff_get_accumulated_sym 698 (void *, bfd_byte *); 699 extern bfd_boolean _bfd_ecoff_get_accumulated_ss 700 (void *, bfd_byte *); 701 702 extern bfd_vma _bfd_get_gp_value 703 (bfd *); 704 extern void _bfd_set_gp_value 705 (bfd *, bfd_vma); 706 707 /* Function shared by the COFF and ELF SH backends, which have no 708 other common header files. */ 709 710 #ifndef _bfd_sh_align_load_span 711 extern bfd_boolean _bfd_sh_align_load_span 712 (bfd *, asection *, bfd_byte *, 713 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), 714 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *); 715 #endif 716 717 /* This is the shape of the elements inside the already_linked hash 718 table. It maps a name onto a list of already_linked elements with 719 the same name. */ 720 721 struct bfd_section_already_linked_hash_entry 722 { 723 struct bfd_hash_entry root; 724 struct bfd_section_already_linked *entry; 725 }; 726 727 struct bfd_section_already_linked 728 { 729 struct bfd_section_already_linked *next; 730 asection *sec; 731 }; 732 733 extern struct bfd_section_already_linked_hash_entry * 734 bfd_section_already_linked_table_lookup (const char *); 735 extern bfd_boolean bfd_section_already_linked_table_insert 736 (struct bfd_section_already_linked_hash_entry *, asection *); 737 extern void bfd_section_already_linked_table_traverse 738 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *, 739 void *), void *); 740 741 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *); 742 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *); 743 744
Indexes created Wed Apr 15 00:22:22 UTC 2026