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, 2011, 2012 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 { 69 file_ptr first_file_filepos; 70 /* Speed up searching the armap */ 71 htab_t cache; 72 bfd *archive_head; /* Only interesting in output routines. */ 73 carsym *symdefs; /* The symdef entries. */ 74 symindex symdef_count; /* How many there are. */ 75 char *extended_names; /* Clever intel extension. */ 76 bfd_size_type extended_names_size; /* Size of extended names. */ 77 /* When more compilers are standard C, this can be a time_t. */ 78 long armap_timestamp; /* Timestamp value written into armap. 79 This is used for BSD archives to check 80 that the timestamp is recent enough 81 for the BSD linker to not complain, 82 just before we finish writing an 83 archive. */ 84 file_ptr armap_datepos; /* Position within archive to seek to 85 rewrite the date field. */ 86 void *tdata; /* Backend specific information. */ 87 }; 88 89 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data) 90 91 /* Goes in bfd's arelt_data slot */ 92 struct areltdata 93 { 94 char * arch_header; /* It's actually a string. */ 95 bfd_size_type parsed_size; /* Octets of filesize not including ar_hdr. */ 96 bfd_size_type extra_size; /* BSD4.4: extra bytes after the header. */ 97 char *filename; /* Null-terminated. */ 98 file_ptr origin; /* For element of a thin archive. */ 99 void *parent_cache; /* Where and how to find this member. */ 100 file_ptr key; 101 }; 102 103 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size) 104 105 extern void *bfd_malloc 106 (bfd_size_type); 107 extern void *bfd_realloc 108 (void *, bfd_size_type); 109 extern void *bfd_realloc_or_free 110 (void *, bfd_size_type); 111 extern void *bfd_zmalloc 112 (bfd_size_type); 113 extern void *bfd_malloc2 114 (bfd_size_type, bfd_size_type); 115 extern void *bfd_realloc2 116 (void *, bfd_size_type, bfd_size_type); 117 extern void *bfd_zmalloc2 118 (bfd_size_type, bfd_size_type); 119 120 extern void _bfd_default_error_handler (const char *s, ...); 121 extern bfd_error_handler_type _bfd_error_handler; 122 extern bfd_assert_handler_type _bfd_assert_handler; 123 124 /* These routines allocate and free things on the BFD's objalloc. */ 125 126 extern void *bfd_alloc2 127 (bfd *, bfd_size_type, bfd_size_type); 128 extern void *bfd_zalloc2 129 (bfd *, bfd_size_type, bfd_size_type); 130 extern void bfd_release 131 (bfd *, void *); 132 133 bfd * _bfd_create_empty_archive_element_shell 134 (bfd *obfd); 135 bfd * _bfd_look_for_bfd_in_cache 136 (bfd *, file_ptr); 137 bfd_boolean _bfd_add_bfd_to_archive_cache 138 (bfd *, file_ptr, bfd *); 139 bfd_boolean _bfd_generic_mkarchive 140 (bfd *abfd); 141 char *_bfd_append_relative_path 142 (bfd *arch, char *elt_name); 143 const bfd_target *bfd_generic_archive_p 144 (bfd *abfd); 145 bfd_boolean bfd_slurp_armap 146 (bfd *abfd); 147 bfd_boolean bfd_slurp_bsd_armap_f2 148 (bfd *abfd); 149 #define bfd_slurp_bsd_armap bfd_slurp_armap 150 #define bfd_slurp_coff_armap bfd_slurp_armap 151 bfd_boolean _bfd_slurp_extended_name_table 152 (bfd *abfd); 153 extern bfd_boolean _bfd_construct_extended_name_table 154 (bfd *, bfd_boolean, char **, bfd_size_type *); 155 bfd_boolean _bfd_write_archive_contents 156 (bfd *abfd); 157 bfd_boolean _bfd_compute_and_write_armap 158 (bfd *, unsigned int elength); 159 bfd *_bfd_get_elt_at_filepos 160 (bfd *archive, file_ptr filepos); 161 extern bfd *_bfd_generic_get_elt_at_index 162 (bfd *, symindex); 163 bfd * _bfd_new_bfd 164 (void); 165 bfd_boolean _bfd_free_cached_info 166 (bfd *); 167 168 bfd_boolean bfd_false 169 (bfd *ignore); 170 bfd_boolean bfd_true 171 (bfd *ignore); 172 void *bfd_nullvoidptr 173 (bfd *ignore); 174 int bfd_0 175 (bfd *ignore); 176 unsigned int bfd_0u 177 (bfd *ignore); 178 long bfd_0l 179 (bfd *ignore); 180 long _bfd_n1 181 (bfd *ignore); 182 void bfd_void 183 (bfd *ignore); 184 185 bfd *_bfd_new_bfd_contained_in 186 (bfd *); 187 const bfd_target *_bfd_dummy_target 188 (bfd *abfd); 189 190 void bfd_dont_truncate_arname 191 (bfd *abfd, const char *filename, char *hdr); 192 void bfd_bsd_truncate_arname 193 (bfd *abfd, const char *filename, char *hdr); 194 void bfd_gnu_truncate_arname 195 (bfd *abfd, const char *filename, char *hdr); 196 197 bfd_boolean bsd_write_armap 198 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count, 199 int stridx); 200 201 bfd_boolean coff_write_armap 202 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count, 203 int stridx); 204 205 extern void *_bfd_generic_read_ar_hdr 206 (bfd *); 207 extern void _bfd_ar_spacepad 208 (char *, size_t, const char *, long); 209 extern bfd_boolean _bfd_ar_sizepad 210 (char *, size_t, bfd_size_type); 211 212 extern void *_bfd_generic_read_ar_hdr_mag 213 (bfd *, const char *); 214 215 extern bfd_boolean _bfd_generic_write_ar_hdr 216 (bfd *, bfd *); 217 218 extern bfd_boolean _bfd_bsd44_write_ar_hdr 219 (bfd *, bfd *); 220 221 bfd * bfd_generic_openr_next_archived_file 222 (bfd *archive, bfd *last_file); 223 224 int bfd_generic_stat_arch_elt 225 (bfd *, struct stat *); 226 227 #define _bfd_read_ar_hdr(abfd) \ 228 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd)) 229 #define _bfd_write_ar_hdr(archive, abfd) \ 230 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd)) 231 232 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use 233 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */ 234 235 #define _bfd_generic_close_and_cleanup _bfd_archive_close_and_cleanup 236 extern bfd_boolean _bfd_archive_close_and_cleanup 237 (bfd *); 238 #define _bfd_generic_bfd_free_cached_info bfd_true 239 extern bfd_boolean _bfd_generic_new_section_hook 240 (bfd *, asection *); 241 extern bfd_boolean _bfd_generic_get_section_contents 242 (bfd *, asection *, void *, file_ptr, bfd_size_type); 243 extern bfd_boolean _bfd_generic_get_section_contents_in_window 244 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type); 245 246 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use 247 BFD_JUMP_TABLE_COPY (_bfd_generic). */ 248 249 #define _bfd_generic_bfd_copy_private_bfd_data \ 250 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 251 #define _bfd_generic_bfd_merge_private_bfd_data \ 252 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 253 #define _bfd_generic_bfd_set_private_flags \ 254 ((bfd_boolean (*) (bfd *, flagword)) bfd_true) 255 #define _bfd_generic_bfd_copy_private_section_data \ 256 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true) 257 #define _bfd_generic_bfd_copy_private_symbol_data \ 258 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true) 259 #define _bfd_generic_bfd_copy_private_header_data \ 260 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 261 #define _bfd_generic_bfd_print_private_bfd_data \ 262 ((bfd_boolean (*) (bfd *, void *)) bfd_true) 263 264 extern bfd_boolean _bfd_generic_init_private_section_data 265 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *); 266 267 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file 268 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */ 269 270 extern char *_bfd_nocore_core_file_failing_command 271 (bfd *); 272 extern int _bfd_nocore_core_file_failing_signal 273 (bfd *); 274 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p 275 (bfd *, bfd *); 276 extern int _bfd_nocore_core_file_pid 277 (bfd *); 278 279 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive 280 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */ 281 282 #define _bfd_noarchive_slurp_armap bfd_false 283 #define _bfd_noarchive_slurp_extended_name_table bfd_false 284 #define _bfd_noarchive_construct_extended_name_table \ 285 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \ 286 bfd_false) 287 #define _bfd_noarchive_truncate_arname \ 288 ((void (*) (bfd *, const char *, char *)) bfd_void) 289 #define _bfd_noarchive_write_armap \ 290 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \ 291 bfd_false) 292 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr 293 #define _bfd_noarchive_write_ar_hdr \ 294 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false) 295 #define _bfd_noarchive_openr_next_archived_file \ 296 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr) 297 #define _bfd_noarchive_get_elt_at_index \ 298 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr) 299 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt 300 #define _bfd_noarchive_update_armap_timestamp bfd_false 301 302 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style 303 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */ 304 305 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap 306 #define _bfd_archive_bsd_slurp_extended_name_table \ 307 _bfd_slurp_extended_name_table 308 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table 309 (bfd *, char **, bfd_size_type *, const char **); 310 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname 311 #define _bfd_archive_bsd_write_armap bsd_write_armap 312 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr 313 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr 314 #define _bfd_archive_bsd_openr_next_archived_file \ 315 bfd_generic_openr_next_archived_file 316 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index 317 #define _bfd_archive_bsd_generic_stat_arch_elt \ 318 bfd_generic_stat_arch_elt 319 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp 320 (bfd *); 321 322 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style 323 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */ 324 325 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap 326 #define _bfd_archive_coff_slurp_extended_name_table \ 327 _bfd_slurp_extended_name_table 328 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table 329 (bfd *, char **, bfd_size_type *, const char **); 330 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname 331 #define _bfd_archive_coff_write_armap coff_write_armap 332 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr 333 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr 334 #define _bfd_archive_coff_openr_next_archived_file \ 335 bfd_generic_openr_next_archived_file 336 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index 337 #define _bfd_archive_coff_generic_stat_arch_elt \ 338 bfd_generic_stat_arch_elt 339 #define _bfd_archive_coff_update_armap_timestamp bfd_true 340 341 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style 342 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */ 343 344 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap 345 #define _bfd_archive_bsd44_slurp_extended_name_table \ 346 _bfd_slurp_extended_name_table 347 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table 348 (bfd *, char **, bfd_size_type *, const char **); 349 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname 350 #define _bfd_archive_bsd44_write_armap bsd_write_armap 351 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr 352 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr 353 #define _bfd_archive_bsd44_openr_next_archived_file \ 354 bfd_generic_openr_next_archived_file 355 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index 356 #define _bfd_archive_bsd44_generic_stat_arch_elt \ 357 bfd_generic_stat_arch_elt 358 #define _bfd_archive_bsd44_update_armap_timestamp \ 359 _bfd_archive_bsd_update_armap_timestamp 360 361 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style 362 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them 363 are irrelevant and never called, so defined as NULL. */ 364 365 extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch); 366 #define _bfd_vms_lib_slurp_armap NULL 367 #define _bfd_vms_lib_slurp_extended_name_table NULL 368 #define _bfd_vms_lib_construct_extended_name_table NULL 369 #define _bfd_vms_lib_truncate_arname NULL 370 #define _bfd_vms_lib_write_armap NULL 371 #define _bfd_vms_lib_read_ar_hdr NULL 372 #define _bfd_vms_lib_write_ar_hdr NULL 373 extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *); 374 extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex); 375 extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *); 376 #define _bfd_vms_lib_update_armap_timestamp bfd_true 377 378 /* Extra routines for VMS style archives. */ 379 380 extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *); 381 extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *); 382 extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd); 383 extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd); 384 extern bfd_boolean _bfd_vms_lib_alpha_mkarchive (bfd *abfd); 385 extern bfd_boolean _bfd_vms_lib_ia64_mkarchive (bfd *abfd); 386 387 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol 388 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */ 389 390 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1 391 #define _bfd_nosymbols_canonicalize_symtab \ 392 ((long (*) (bfd *, asymbol **)) _bfd_n1) 393 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol 394 #define _bfd_nosymbols_print_symbol \ 395 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void) 396 #define _bfd_nosymbols_get_symbol_info \ 397 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void) 398 #define _bfd_nosymbols_bfd_is_local_label_name \ 399 ((bfd_boolean (*) (bfd *, const char *)) bfd_false) 400 #define _bfd_nosymbols_bfd_is_target_special_symbol \ 401 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 402 #define _bfd_nosymbols_get_lineno \ 403 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr) 404 #define _bfd_nosymbols_find_nearest_line \ 405 ((bfd_boolean (*) (bfd *, asection *, asymbol **, bfd_vma, const char **, \ 406 const char **, unsigned int *)) \ 407 bfd_false) 408 #define _bfd_nosymbols_find_inliner_info \ 409 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \ 410 bfd_false) 411 #define _bfd_nosymbols_bfd_make_debug_symbol \ 412 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 413 #define _bfd_nosymbols_read_minisymbols \ 414 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1) 415 #define _bfd_nosymbols_minisymbol_to_symbol \ 416 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \ 417 bfd_nullvoidptr) 418 419 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc 420 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */ 421 422 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *); 423 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *, 424 arelent **, asymbol **); 425 #define _bfd_norelocs_bfd_reloc_type_lookup \ 426 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr) 427 #define _bfd_norelocs_bfd_reloc_name_lookup \ 428 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr) 429 430 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not 431 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */ 432 433 #define _bfd_nowrite_set_arch_mach \ 434 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \ 435 bfd_false) 436 #define _bfd_nowrite_set_section_contents \ 437 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \ 438 bfd_false) 439 440 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use 441 BFD_JUMP_TABLE_WRITE (_bfd_generic). */ 442 443 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach 444 extern bfd_boolean _bfd_generic_set_section_contents 445 (bfd *, asection *, const void *, file_ptr, bfd_size_type); 446 447 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not 448 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */ 449 450 #define _bfd_nolink_sizeof_headers \ 451 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0) 452 #define _bfd_nolink_bfd_get_relocated_section_contents \ 453 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \ 454 bfd_byte *, bfd_boolean, asymbol **)) \ 455 bfd_nullvoidptr) 456 #define _bfd_nolink_bfd_relax_section \ 457 ((bfd_boolean (*) \ 458 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \ 459 bfd_false) 460 #define _bfd_nolink_bfd_gc_sections \ 461 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 462 bfd_false) 463 #define _bfd_nolink_bfd_lookup_section_flags \ 464 ((bfd_boolean (*) (struct bfd_link_info *, struct flag_info *, asection *)) \ 465 bfd_0) 466 #define _bfd_nolink_bfd_merge_sections \ 467 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 468 bfd_false) 469 #define _bfd_nolink_bfd_is_group_section \ 470 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \ 471 bfd_false) 472 #define _bfd_nolink_bfd_discard_group \ 473 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \ 474 bfd_false) 475 #define _bfd_nolink_bfd_link_hash_table_create \ 476 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr) 477 #define _bfd_nolink_bfd_link_hash_table_free \ 478 ((void (*) (struct bfd_link_hash_table *)) bfd_void) 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 *, asection *, asymbol **, bfd_vma, const char **, 529 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 *, const struct dwarf_debug_section *, asection *, asymbol **, bfd_vma, 545 const char **, const char **, unsigned int *, unsigned int *, unsigned int, 546 void **); 547 548 /* Find the line using DWARF 2 debugging information. */ 549 extern bfd_boolean _bfd_dwarf2_find_line 550 (bfd *, asymbol **, asymbol *, const char **, 551 unsigned int *, unsigned int *, unsigned int, void **); 552 553 bfd_boolean _bfd_generic_find_line 554 (bfd *, asymbol **, asymbol *, const char **, unsigned int *); 555 556 bfd_boolean _bfd_generic_find_nearest_line_discriminator 557 (bfd *, asection *, asymbol **, bfd_vma, const char **, const char **, 558 unsigned int *, unsigned int *); 559 560 /* Find inliner info after calling bfd_find_nearest_line. */ 561 extern bfd_boolean _bfd_dwarf2_find_inliner_info 562 (bfd *, const char **, const char **, unsigned int *, void **); 563 564 /* Read DWARF 2 debugging information. */ 565 extern bfd_boolean _bfd_dwarf2_slurp_debug_info 566 (bfd *, bfd *, const struct dwarf_debug_section *, asymbol **, void **); 567 568 /* Clean up the data used to handle DWARF 2 debugging information. */ 569 extern void _bfd_dwarf2_cleanup_debug_info 570 (bfd *, void **); 571 572 /* Create a new section entry. */ 573 extern struct bfd_hash_entry *bfd_section_hash_newfunc 574 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 575 576 /* A routine to create entries for a bfd_link_hash_table. */ 577 extern struct bfd_hash_entry *_bfd_link_hash_newfunc 578 (struct bfd_hash_entry *entry, struct bfd_hash_table *table, 579 const char *string); 580 581 /* Initialize a bfd_link_hash_table. */ 582 extern bfd_boolean _bfd_link_hash_table_init 583 (struct bfd_link_hash_table *, bfd *, 584 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 585 struct bfd_hash_table *, 586 const char *), 587 unsigned int); 588 589 /* Generic link hash table creation routine. */ 590 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create 591 (bfd *); 592 593 /* Generic link hash table destruction routine. */ 594 extern void _bfd_generic_link_hash_table_free 595 (struct bfd_link_hash_table *); 596 597 /* Generic add symbol routine. */ 598 extern bfd_boolean _bfd_generic_link_add_symbols 599 (bfd *, struct bfd_link_info *); 600 601 /* Generic add symbol routine. This version is used by targets for 602 which the linker must collect constructors and destructors by name, 603 as the collect2 program does. */ 604 extern bfd_boolean _bfd_generic_link_add_symbols_collect 605 (bfd *, struct bfd_link_info *); 606 607 /* Generic archive add symbol routine. */ 608 extern bfd_boolean _bfd_generic_link_add_archive_symbols 609 (bfd *, struct bfd_link_info *, 610 bfd_boolean (*) (bfd *, struct bfd_link_info *, bfd_boolean *)); 611 612 /* Forward declaration to avoid prototype errors. */ 613 typedef struct bfd_link_hash_entry _bfd_link_hash_entry; 614 615 /* Generic routine to add a single symbol. */ 616 extern bfd_boolean _bfd_generic_link_add_one_symbol 617 (struct bfd_link_info *, bfd *, const char *name, flagword, 618 asection *, bfd_vma, const char *, bfd_boolean copy, 619 bfd_boolean constructor, struct bfd_link_hash_entry **); 620 621 /* Generic routine to mark section as supplying symbols only. */ 622 extern void _bfd_generic_link_just_syms 623 (asection *, struct bfd_link_info *); 624 625 /* Generic routine that does nothing. */ 626 extern void _bfd_generic_copy_link_hash_symbol_type 627 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *); 628 629 /* Generic link routine. */ 630 extern bfd_boolean _bfd_generic_final_link 631 (bfd *, struct bfd_link_info *); 632 633 extern bfd_boolean _bfd_generic_link_split_section 634 (bfd *, struct bfd_section *); 635 636 extern bfd_boolean _bfd_generic_section_already_linked 637 (bfd *, asection *, struct bfd_link_info *); 638 639 /* Generic reloc_link_order processing routine. */ 640 extern bfd_boolean _bfd_generic_reloc_link_order 641 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 642 643 /* Default link order processing routine. */ 644 extern bfd_boolean _bfd_default_link_order 645 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 646 647 /* Count the number of reloc entries in a link order list. */ 648 extern unsigned int _bfd_count_link_order_relocs 649 (struct bfd_link_order *); 650 651 /* Final link relocation routine. */ 652 extern bfd_reloc_status_type _bfd_final_link_relocate 653 (reloc_howto_type *, bfd *, asection *, bfd_byte *, 654 bfd_vma, bfd_vma, bfd_vma); 655 656 /* Relocate a particular location by a howto and a value. */ 657 extern bfd_reloc_status_type _bfd_relocate_contents 658 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *); 659 660 /* Clear a given location using a given howto. */ 661 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd, 662 asection *input_section, bfd_byte *location); 663 664 /* Link stabs in sections in the first pass. */ 665 666 extern bfd_boolean _bfd_link_section_stabs 667 (bfd *, struct stab_info *, asection *, asection *, void **, 668 bfd_size_type *); 669 670 /* Eliminate stabs for discarded functions and symbols. */ 671 extern bfd_boolean _bfd_discard_section_stabs 672 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *); 673 674 /* Write out the .stab section when linking stabs in sections. */ 675 676 extern bfd_boolean _bfd_write_section_stabs 677 (bfd *, struct stab_info *, asection *, void **, bfd_byte *); 678 679 /* Write out the .stabstr string table when linking stabs in sections. */ 680 681 extern bfd_boolean _bfd_write_stab_strings 682 (bfd *, struct stab_info *); 683 684 /* Find an offset within a .stab section when linking stabs in 685 sections. */ 686 687 extern bfd_vma _bfd_stab_section_offset 688 (asection *, void *, bfd_vma); 689 690 /* Register a SEC_MERGE section as a candidate for merging. */ 691 692 extern bfd_boolean _bfd_add_merge_section 693 (bfd *, void **, asection *, void **); 694 695 /* Attempt to merge SEC_MERGE sections. */ 696 697 extern bfd_boolean _bfd_merge_sections 698 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *)); 699 700 /* Write out a merged section. */ 701 702 extern bfd_boolean _bfd_write_merged_section 703 (bfd *, asection *, void *); 704 705 /* Find an offset within a modified SEC_MERGE section. */ 706 707 extern bfd_vma _bfd_merged_section_offset 708 (bfd *, asection **, void *, bfd_vma); 709 710 /* Tidy up when done. */ 711 712 extern void _bfd_merge_sections_free (void *); 713 714 /* Create a string table. */ 715 extern struct bfd_strtab_hash *_bfd_stringtab_init 716 (void); 717 718 /* Create an XCOFF .debug section style string table. */ 719 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init 720 (void); 721 722 /* Free a string table. */ 723 extern void _bfd_stringtab_free 724 (struct bfd_strtab_hash *); 725 726 /* Get the size of a string table. */ 727 extern bfd_size_type _bfd_stringtab_size 728 (struct bfd_strtab_hash *); 729 730 /* Add a string to a string table. */ 731 extern bfd_size_type _bfd_stringtab_add 732 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy); 733 734 /* Write out a string table. */ 735 extern bfd_boolean _bfd_stringtab_emit 736 (bfd *, struct bfd_strtab_hash *); 737 738 /* Check that endianness of input and output file match. */ 739 extern bfd_boolean _bfd_generic_verify_endian_match 740 (bfd *, bfd *); 741 742 /* Macros to tell if bfds are read or write enabled. 743 744 Note that bfds open for read may be scribbled into if the fd passed 745 to bfd_fdopenr is actually open both for read and write 746 simultaneously. However an output bfd will never be open for 747 read. Therefore sometimes you want to check bfd_read_p or 748 !bfd_read_p, and only sometimes bfd_write_p. 749 */ 750 751 #define bfd_read_p(abfd) \ 752 ((abfd)->direction == read_direction || (abfd)->direction == both_direction) 753 #define bfd_write_p(abfd) \ 754 ((abfd)->direction == write_direction || (abfd)->direction == both_direction) 755 756 void bfd_assert 757 (const char*,int); 758 759 #define BFD_ASSERT(x) \ 760 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0) 761 762 #define BFD_FAIL() \ 763 do { bfd_assert(__FILE__,__LINE__); } while (0) 764 765 extern void _bfd_abort 766 (const char *, int, const char *) ATTRIBUTE_NORETURN; 767 768 /* if gcc >= 2.6, we can give a function name, too */ 769 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) 770 #define __PRETTY_FUNCTION__ ((char *) NULL) 771 #endif 772 773 #undef abort 774 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) 775 776 /* Manipulate a system FILE but using BFD's "file_ptr", rather than 777 the system "off_t" or "off64_t", as the offset. */ 778 extern file_ptr real_ftell (FILE *file); 779 extern int real_fseek (FILE *file, file_ptr offset, int whence); 780 extern FILE *real_fopen (const char *filename, const char *modes); 781 782 /* List of supported target vectors, and the default vector (if 783 bfd_default_vector[0] is NULL, there is no default). */ 784 extern const bfd_target * const *bfd_target_vector; 785 extern const bfd_target *bfd_default_vector[]; 786 787 /* List of associated target vectors. */ 788 extern const bfd_target * const *bfd_associated_vector; 789 790 /* Functions shared by the ECOFF and MIPS ELF backends, which have no 791 other common header files. */ 792 793 #if defined(__STDC__) || defined(ALMOST_STDC) 794 struct ecoff_find_line; 795 #endif 796 797 extern bfd_boolean _bfd_ecoff_locate_line 798 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const, 799 const struct ecoff_debug_swap * const, struct ecoff_find_line *, 800 const char **, const char **, unsigned int *); 801 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr 802 (void *, bfd_byte *); 803 extern bfd_boolean _bfd_ecoff_get_accumulated_sym 804 (void *, bfd_byte *); 805 extern bfd_boolean _bfd_ecoff_get_accumulated_ss 806 (void *, bfd_byte *); 807 808 extern bfd_vma _bfd_get_gp_value 809 (bfd *); 810 extern void _bfd_set_gp_value 811 (bfd *, bfd_vma); 812 813 /* Function shared by the COFF and ELF SH backends, which have no 814 other common header files. */ 815 816 #ifndef _bfd_sh_align_load_span 817 extern bfd_boolean _bfd_sh_align_load_span 818 (bfd *, asection *, bfd_byte *, 819 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), 820 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *); 821 #endif 822 823 /* This is the shape of the elements inside the already_linked hash 824 table. It maps a name onto a list of already_linked elements with 825 the same name. */ 826 827 struct bfd_section_already_linked_hash_entry 828 { 829 struct bfd_hash_entry root; 830 struct bfd_section_already_linked *entry; 831 }; 832 833 struct bfd_section_already_linked 834 { 835 struct bfd_section_already_linked *next; 836 asection *sec; 837 }; 838 839 extern struct bfd_section_already_linked_hash_entry * 840 bfd_section_already_linked_table_lookup (const char *); 841 extern bfd_boolean bfd_section_already_linked_table_insert 842 (struct bfd_section_already_linked_hash_entry *, asection *); 843 extern void bfd_section_already_linked_table_traverse 844 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *, 845 void *), void *); 846 847 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *); 848 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *); 849