1 /* libbfd.h -- Declarations used by bfd library *implementation*. 2 (This include file is not for users of the library.) 3 4 Copyright (C) 1990-2016 Free Software Foundation, Inc. 5 6 Written by Cygnus Support. 7 8 This file is part of BFD, the Binary File Descriptor library. 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 3 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 23 MA 02110-1301, USA. */ 24 25 #include "hashtab.h" 26 27 #ifdef __cplusplus 28 extern "C" { 29 #endif 30 31 /* Align an address upward to a boundary, expressed as a number of bytes. 32 E.g. align to an 8-byte boundary with argument of 8. Take care never 33 to wrap around if the address is within boundary-1 of the end of the 34 address space. */ 35 #define BFD_ALIGN(this, boundary) \ 36 ((((bfd_vma) (this) + (boundary) - 1) >= (bfd_vma) (this)) \ 37 ? (((bfd_vma) (this) + ((boundary) - 1)) & ~ (bfd_vma) ((boundary)-1)) \ 38 : ~ (bfd_vma) 0) 39 40 /* If you want to read and write large blocks, you might want to do it 41 in quanta of this amount */ 42 #define DEFAULT_BUFFERSIZE 8192 43 44 /* Set a tdata field. Can't use the other macros for this, since they 45 do casts, and casting to the left of assignment isn't portable. */ 46 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v)) 47 48 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points 49 to an instance of this structure. */ 50 51 struct bfd_in_memory 52 { 53 /* Size of buffer. */ 54 bfd_size_type size; 55 /* Buffer holding contents of BFD. */ 56 bfd_byte *buffer; 57 }; 58 59 struct section_hash_entry 60 { 61 struct bfd_hash_entry root; 62 asection section; 63 }; 64 65 /* tdata for an archive. For an input archive, cache 66 needs to be free()'d. For an output archive, symdefs do. */ 67 68 struct artdata 69 { 70 file_ptr first_file_filepos; 71 /* Speed up searching the armap */ 72 htab_t cache; 73 bfd *archive_head; /* Only interesting in output routines. */ 74 carsym *symdefs; /* The symdef entries. */ 75 symindex symdef_count; /* How many there are. */ 76 char *extended_names; /* Clever intel extension. */ 77 bfd_size_type extended_names_size; /* Size of extended names. */ 78 /* When more compilers are standard C, this can be a time_t. */ 79 long armap_timestamp; /* Timestamp value written into armap. 80 This is used for BSD archives to check 81 that the timestamp is recent enough 82 for the BSD linker to not complain, 83 just before we finish writing an 84 archive. */ 85 file_ptr armap_datepos; /* Position within archive to seek to 86 rewrite the date field. */ 87 void *tdata; /* Backend specific information. */ 88 }; 89 90 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data) 91 92 /* Goes in bfd's arelt_data slot */ 93 struct areltdata 94 { 95 char * arch_header; /* It's actually a string. */ 96 bfd_size_type parsed_size; /* Octets of filesize not including ar_hdr. */ 97 bfd_size_type extra_size; /* BSD4.4: extra bytes after the header. */ 98 char *filename; /* Null-terminated. */ 99 file_ptr origin; /* For element of a thin archive. */ 100 void *parent_cache; /* Where and how to find this member. */ 101 file_ptr key; 102 }; 103 104 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size) 105 106 extern void *bfd_malloc 107 (bfd_size_type); 108 extern void *bfd_realloc 109 (void *, bfd_size_type); 110 extern void *bfd_realloc_or_free 111 (void *, bfd_size_type); 112 extern void *bfd_zmalloc 113 (bfd_size_type); 114 extern void *bfd_malloc2 115 (bfd_size_type, bfd_size_type); 116 extern void *bfd_realloc2 117 (void *, bfd_size_type, bfd_size_type); 118 extern void *bfd_zmalloc2 119 (bfd_size_type, bfd_size_type); 120 121 extern void _bfd_default_error_handler (const char *s, ...); 122 extern bfd_error_handler_type _bfd_error_handler; 123 extern bfd_assert_handler_type _bfd_assert_handler; 124 125 /* These routines allocate and free things on the BFD's objalloc. */ 126 127 extern void *bfd_alloc2 128 (bfd *, bfd_size_type, bfd_size_type); 129 extern void *bfd_zalloc2 130 (bfd *, bfd_size_type, bfd_size_type); 131 extern void bfd_release 132 (bfd *, void *); 133 134 bfd * _bfd_create_empty_archive_element_shell 135 (bfd *obfd); 136 bfd * _bfd_look_for_bfd_in_cache 137 (bfd *, file_ptr); 138 bfd_boolean _bfd_add_bfd_to_archive_cache 139 (bfd *, file_ptr, bfd *); 140 bfd_boolean _bfd_generic_mkarchive 141 (bfd *abfd); 142 char *_bfd_append_relative_path 143 (bfd *arch, char *elt_name); 144 const bfd_target *bfd_generic_archive_p 145 (bfd *abfd); 146 bfd_boolean bfd_slurp_armap 147 (bfd *abfd); 148 bfd_boolean bfd_slurp_bsd_armap_f2 149 (bfd *abfd); 150 #define bfd_slurp_bsd_armap bfd_slurp_armap 151 #define bfd_slurp_coff_armap bfd_slurp_armap 152 bfd_boolean _bfd_archive_64_bit_slurp_armap 153 (bfd *); 154 bfd_boolean _bfd_archive_64_bit_write_armap 155 (bfd *, unsigned int, struct orl *, unsigned int, int); 156 #define _bfd_archive_64_bit_slurp_extended_name_table \ 157 _bfd_slurp_extended_name_table 158 #define _bfd_archive_64_bit_construct_extended_name_table \ 159 _bfd_archive_coff_construct_extended_name_table 160 #define _bfd_archive_64_bit_truncate_arname \ 161 bfd_dont_truncate_arname 162 #define _bfd_archive_64_bit_read_ar_hdr \ 163 _bfd_generic_read_ar_hdr 164 #define _bfd_archive_64_bit_write_ar_hdr \ 165 _bfd_generic_write_ar_hdr 166 #define _bfd_archive_64_bit_openr_next_archived_file \ 167 bfd_generic_openr_next_archived_file 168 #define _bfd_archive_64_bit_get_elt_at_index \ 169 _bfd_generic_get_elt_at_index 170 #define _bfd_archive_64_bit_generic_stat_arch_elt \ 171 bfd_generic_stat_arch_elt 172 #define _bfd_archive_64_bit_update_armap_timestamp \ 173 bfd_true 174 175 bfd_boolean _bfd_slurp_extended_name_table 176 (bfd *abfd); 177 extern bfd_boolean _bfd_construct_extended_name_table 178 (bfd *, bfd_boolean, char **, bfd_size_type *); 179 bfd_boolean _bfd_write_archive_contents 180 (bfd *abfd); 181 bfd_boolean _bfd_compute_and_write_armap 182 (bfd *, unsigned int elength); 183 bfd *_bfd_get_elt_at_filepos 184 (bfd *archive, file_ptr filepos); 185 extern bfd *_bfd_generic_get_elt_at_index 186 (bfd *, symindex); 187 bfd * _bfd_new_bfd 188 (void); 189 bfd_boolean _bfd_free_cached_info 190 (bfd *); 191 192 bfd_boolean bfd_false 193 (bfd *ignore); 194 bfd_boolean bfd_true 195 (bfd *ignore); 196 void *bfd_nullvoidptr 197 (bfd *ignore); 198 int bfd_0 199 (bfd *ignore); 200 unsigned int bfd_0u 201 (bfd *ignore); 202 long bfd_0l 203 (bfd *ignore); 204 long _bfd_n1 205 (bfd *ignore); 206 void bfd_void 207 (bfd *ignore); 208 209 bfd *_bfd_new_bfd_contained_in 210 (bfd *); 211 const bfd_target *_bfd_dummy_target 212 (bfd *abfd); 213 214 void bfd_dont_truncate_arname 215 (bfd *abfd, const char *filename, char *hdr); 216 void bfd_bsd_truncate_arname 217 (bfd *abfd, const char *filename, char *hdr); 218 void bfd_gnu_truncate_arname 219 (bfd *abfd, const char *filename, char *hdr); 220 221 bfd_boolean bsd_write_armap 222 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count, 223 int stridx); 224 225 bfd_boolean coff_write_armap 226 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count, 227 int stridx); 228 229 extern void *_bfd_generic_read_ar_hdr 230 (bfd *); 231 extern void _bfd_ar_spacepad 232 (char *, size_t, const char *, long); 233 extern bfd_boolean _bfd_ar_sizepad 234 (char *, size_t, bfd_size_type); 235 236 extern void *_bfd_generic_read_ar_hdr_mag 237 (bfd *, const char *); 238 239 extern bfd_boolean _bfd_generic_write_ar_hdr 240 (bfd *, bfd *); 241 242 extern bfd_boolean _bfd_bsd44_write_ar_hdr 243 (bfd *, bfd *); 244 245 bfd * bfd_generic_openr_next_archived_file 246 (bfd *archive, bfd *last_file); 247 248 int bfd_generic_stat_arch_elt 249 (bfd *, struct stat *); 250 251 #define _bfd_read_ar_hdr(abfd) \ 252 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd)) 253 #define _bfd_write_ar_hdr(archive, abfd) \ 254 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd)) 255 256 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use 258 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */ 259 260 #define _bfd_generic_close_and_cleanup _bfd_archive_close_and_cleanup 261 extern bfd_boolean _bfd_archive_close_and_cleanup 262 (bfd *); 263 #define _bfd_generic_bfd_free_cached_info bfd_true 264 extern bfd_boolean _bfd_generic_new_section_hook 265 (bfd *, asection *); 266 extern bfd_boolean _bfd_generic_get_section_contents 267 (bfd *, asection *, void *, file_ptr, bfd_size_type); 268 extern bfd_boolean _bfd_generic_get_section_contents_in_window 269 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type); 270 271 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use 272 BFD_JUMP_TABLE_COPY (_bfd_generic). */ 273 274 #define _bfd_generic_bfd_copy_private_bfd_data \ 275 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 276 #define _bfd_generic_bfd_merge_private_bfd_data \ 277 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 278 #define _bfd_generic_bfd_set_private_flags \ 279 ((bfd_boolean (*) (bfd *, flagword)) bfd_true) 280 #define _bfd_generic_bfd_copy_private_section_data \ 281 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true) 282 #define _bfd_generic_bfd_copy_private_symbol_data \ 283 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true) 284 #define _bfd_generic_bfd_copy_private_header_data \ 285 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 286 #define _bfd_generic_bfd_print_private_bfd_data \ 287 ((bfd_boolean (*) (bfd *, void *)) bfd_true) 288 289 extern bfd_boolean _bfd_generic_init_private_section_data 290 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *); 291 292 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file 293 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */ 294 295 extern char *_bfd_nocore_core_file_failing_command 296 (bfd *); 297 extern int _bfd_nocore_core_file_failing_signal 298 (bfd *); 299 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p 300 (bfd *, bfd *); 301 extern int _bfd_nocore_core_file_pid 302 (bfd *); 303 304 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive 305 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */ 306 307 #define _bfd_noarchive_slurp_armap bfd_false 308 #define _bfd_noarchive_slurp_extended_name_table bfd_false 309 #define _bfd_noarchive_construct_extended_name_table \ 310 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \ 311 bfd_false) 312 #define _bfd_noarchive_truncate_arname \ 313 ((void (*) (bfd *, const char *, char *)) bfd_void) 314 #define _bfd_noarchive_write_armap \ 315 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \ 316 bfd_false) 317 #define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr 318 #define _bfd_noarchive_write_ar_hdr \ 319 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false) 320 #define _bfd_noarchive_openr_next_archived_file \ 321 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr) 322 #define _bfd_noarchive_get_elt_at_index \ 323 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr) 324 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt 325 #define _bfd_noarchive_update_armap_timestamp bfd_false 326 327 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style 328 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */ 329 330 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap 331 #define _bfd_archive_bsd_slurp_extended_name_table \ 332 _bfd_slurp_extended_name_table 333 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table 334 (bfd *, char **, bfd_size_type *, const char **); 335 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname 336 #define _bfd_archive_bsd_write_armap bsd_write_armap 337 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr 338 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr 339 #define _bfd_archive_bsd_openr_next_archived_file \ 340 bfd_generic_openr_next_archived_file 341 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index 342 #define _bfd_archive_bsd_generic_stat_arch_elt \ 343 bfd_generic_stat_arch_elt 344 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp 345 (bfd *); 346 347 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style 348 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */ 349 350 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap 351 #define _bfd_archive_coff_slurp_extended_name_table \ 352 _bfd_slurp_extended_name_table 353 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table 354 (bfd *, char **, bfd_size_type *, const char **); 355 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname 356 #define _bfd_archive_coff_write_armap coff_write_armap 357 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr 358 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr 359 #define _bfd_archive_coff_openr_next_archived_file \ 360 bfd_generic_openr_next_archived_file 361 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index 362 #define _bfd_archive_coff_generic_stat_arch_elt \ 363 bfd_generic_stat_arch_elt 364 #define _bfd_archive_coff_update_armap_timestamp bfd_true 365 366 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style 367 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */ 368 369 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap 370 #define _bfd_archive_bsd44_slurp_extended_name_table \ 371 _bfd_slurp_extended_name_table 372 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table 373 (bfd *, char **, bfd_size_type *, const char **); 374 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname 375 #define _bfd_archive_bsd44_write_armap bsd_write_armap 376 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr 377 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr 378 #define _bfd_archive_bsd44_openr_next_archived_file \ 379 bfd_generic_openr_next_archived_file 380 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index 381 #define _bfd_archive_bsd44_generic_stat_arch_elt \ 382 bfd_generic_stat_arch_elt 383 #define _bfd_archive_bsd44_update_armap_timestamp \ 384 _bfd_archive_bsd_update_armap_timestamp 385 386 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style 387 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them 388 are irrelevant and never called, so defined as NULL. */ 389 390 extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch); 391 #define _bfd_vms_lib_slurp_armap NULL 392 #define _bfd_vms_lib_slurp_extended_name_table NULL 393 #define _bfd_vms_lib_construct_extended_name_table NULL 394 #define _bfd_vms_lib_truncate_arname NULL 395 #define _bfd_vms_lib_write_armap NULL 396 #define _bfd_vms_lib_read_ar_hdr NULL 397 #define _bfd_vms_lib_write_ar_hdr NULL 398 extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *); 399 extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex); 400 extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *); 401 #define _bfd_vms_lib_update_armap_timestamp bfd_true 402 403 /* Extra routines for VMS style archives. */ 404 405 extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *); 406 extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *); 407 extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd); 408 extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd); 409 extern bfd_boolean _bfd_vms_lib_alpha_mkarchive (bfd *abfd); 410 extern bfd_boolean _bfd_vms_lib_ia64_mkarchive (bfd *abfd); 411 412 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol 413 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */ 414 415 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1 416 #define _bfd_nosymbols_canonicalize_symtab \ 417 ((long (*) (bfd *, asymbol **)) _bfd_n1) 418 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol 419 #define _bfd_nosymbols_print_symbol \ 420 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void) 421 #define _bfd_nosymbols_get_symbol_info \ 422 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void) 423 #define _bfd_nosymbols_get_symbol_version_string \ 424 ((const char *(*) (bfd *, asymbol *, bfd_boolean *)) bfd_nullvoidptr) 425 #define _bfd_nosymbols_bfd_is_local_label_name \ 426 ((bfd_boolean (*) (bfd *, const char *)) bfd_false) 427 #define _bfd_nosymbols_bfd_is_target_special_symbol \ 428 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 429 #define _bfd_nosymbols_get_lineno \ 430 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr) 431 #define _bfd_nosymbols_find_nearest_line \ 432 ((bfd_boolean (*) (bfd *, asymbol **, asection *, bfd_vma, \ 433 const char **, const char **, unsigned int *, \ 434 unsigned int *)) \ 435 bfd_false) 436 #define _bfd_nosymbols_find_line \ 437 ((bfd_boolean (*) (bfd *, asymbol **, asymbol *, \ 438 const char **, unsigned int *)) \ 439 bfd_false) 440 #define _bfd_nosymbols_find_inliner_info \ 441 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \ 442 bfd_false) 443 #define _bfd_nosymbols_bfd_make_debug_symbol \ 444 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 445 #define _bfd_nosymbols_read_minisymbols \ 446 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1) 447 #define _bfd_nosymbols_minisymbol_to_symbol \ 448 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \ 449 bfd_nullvoidptr) 450 451 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc 452 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */ 453 454 extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *); 455 extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *, 456 arelent **, asymbol **); 457 #define _bfd_norelocs_bfd_reloc_type_lookup \ 458 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr) 459 #define _bfd_norelocs_bfd_reloc_name_lookup \ 460 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr) 461 462 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not 463 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */ 464 465 #define _bfd_nowrite_set_arch_mach \ 466 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \ 467 bfd_false) 468 #define _bfd_nowrite_set_section_contents \ 469 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \ 470 bfd_false) 471 472 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use 473 BFD_JUMP_TABLE_WRITE (_bfd_generic). */ 474 475 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach 476 extern bfd_boolean _bfd_generic_set_section_contents 477 (bfd *, asection *, const void *, file_ptr, bfd_size_type); 478 479 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not 480 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */ 481 482 #define _bfd_nolink_sizeof_headers \ 483 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0) 484 #define _bfd_nolink_bfd_get_relocated_section_contents \ 485 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \ 486 bfd_byte *, bfd_boolean, asymbol **)) \ 487 bfd_nullvoidptr) 488 #define _bfd_nolink_bfd_relax_section \ 489 ((bfd_boolean (*) \ 490 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \ 491 bfd_false) 492 #define _bfd_nolink_bfd_gc_sections \ 493 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 494 bfd_false) 495 #define _bfd_nolink_bfd_lookup_section_flags \ 496 ((bfd_boolean (*) (struct bfd_link_info *, struct flag_info *, asection *)) \ 497 bfd_0) 498 #define _bfd_nolink_bfd_merge_sections \ 499 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 500 bfd_false) 501 #define _bfd_nolink_bfd_is_group_section \ 502 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \ 503 bfd_false) 504 #define _bfd_nolink_bfd_discard_group \ 505 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \ 506 bfd_false) 507 #define _bfd_nolink_bfd_link_hash_table_create \ 508 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr) 509 #define _bfd_nolink_bfd_link_add_symbols \ 510 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 511 #define _bfd_nolink_bfd_link_just_syms \ 512 ((void (*) (asection *, struct bfd_link_info *)) bfd_void) 513 #define _bfd_nolink_bfd_copy_link_hash_symbol_type \ 514 ((void (*) (bfd *, struct bfd_link_hash_entry *, \ 515 struct bfd_link_hash_entry *)) bfd_void) 516 #define _bfd_nolink_bfd_final_link \ 517 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 518 #define _bfd_nolink_bfd_link_split_section \ 519 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false) 520 #define _bfd_nolink_section_already_linked \ 521 ((bfd_boolean (*) (bfd *, asection *, \ 522 struct bfd_link_info *)) bfd_false) 523 #define _bfd_nolink_bfd_define_common_symbol \ 524 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \ 525 struct bfd_link_hash_entry *)) bfd_false) 526 #define _bfd_nolink_bfd_link_check_relocs \ 527 _bfd_generic_link_check_relocs 528 529 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not 530 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC 531 (_bfd_nodynamic). */ 532 533 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1 534 #define _bfd_nodynamic_canonicalize_dynamic_symtab \ 535 ((long (*) (bfd *, asymbol **)) _bfd_n1) 536 #define _bfd_nodynamic_get_synthetic_symtab \ 537 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1) 538 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1 539 #define _bfd_nodynamic_canonicalize_dynamic_reloc \ 540 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1) 541 542 /* Generic routine to determine of the given symbol is a local 544 label. */ 545 extern bfd_boolean bfd_generic_is_local_label_name 546 (bfd *, const char *); 547 548 /* Generic minisymbol routines. */ 549 extern long _bfd_generic_read_minisymbols 550 (bfd *, bfd_boolean, void **, unsigned int *); 551 extern asymbol *_bfd_generic_minisymbol_to_symbol 552 (bfd *, bfd_boolean, const void *, asymbol *); 553 554 /* Find the nearest line using .stab/.stabstr sections. */ 555 extern bfd_boolean _bfd_stab_section_find_nearest_line 556 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *, 557 const char **, const char **, unsigned int *, void **); 558 559 /* Find the nearest line using DWARF 1 debugging information. */ 560 extern bfd_boolean _bfd_dwarf1_find_nearest_line 561 (bfd *, asymbol **, asection *, bfd_vma, 562 const char **, const char **, unsigned int *); 563 564 struct dwarf_debug_section 565 { 566 const char *uncompressed_name; 567 const char *compressed_name; 568 }; 569 570 /* Map of uncompressed DWARF debug section name to compressed one. It 571 is terminated by NULL uncompressed_name. */ 572 573 extern const struct dwarf_debug_section dwarf_debug_sections[]; 574 575 /* Find the nearest line using DWARF 2 debugging information. */ 576 extern bfd_boolean _bfd_dwarf2_find_nearest_line 577 (bfd *, asymbol **, asymbol *, asection *, bfd_vma, 578 const char **, const char **, unsigned int *, unsigned int *, 579 const struct dwarf_debug_section *, unsigned int, void **); 580 581 /* Find the bias between DWARF addresses and real addresses. */ 582 extern bfd_signed_vma _bfd_dwarf2_find_symbol_bias 583 (asymbol **, void **); 584 585 /* Find inliner info after calling bfd_find_nearest_line. */ 586 extern bfd_boolean _bfd_dwarf2_find_inliner_info 587 (bfd *, const char **, const char **, unsigned int *, void **); 588 589 /* Read DWARF 2 debugging information. */ 590 extern bfd_boolean _bfd_dwarf2_slurp_debug_info 591 (bfd *, bfd *, const struct dwarf_debug_section *, asymbol **, void **, 592 bfd_boolean); 593 594 /* Clean up the data used to handle DWARF 2 debugging information. */ 595 extern void _bfd_dwarf2_cleanup_debug_info 596 (bfd *, void **); 597 598 /* Create a new section entry. */ 599 extern struct bfd_hash_entry *bfd_section_hash_newfunc 600 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 601 602 /* A routine to create entries for a bfd_link_hash_table. */ 603 extern struct bfd_hash_entry *_bfd_link_hash_newfunc 604 (struct bfd_hash_entry *entry, struct bfd_hash_table *table, 605 const char *string); 606 607 /* Initialize a bfd_link_hash_table. */ 608 extern bfd_boolean _bfd_link_hash_table_init 609 (struct bfd_link_hash_table *, bfd *, 610 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 611 struct bfd_hash_table *, 612 const char *), 613 unsigned int); 614 615 /* Generic link hash table creation routine. */ 616 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create 617 (bfd *); 618 619 /* Generic link hash table destruction routine. */ 620 extern void _bfd_generic_link_hash_table_free 621 (bfd *); 622 623 /* Generic add symbol routine. */ 624 extern bfd_boolean _bfd_generic_link_add_symbols 625 (bfd *, struct bfd_link_info *); 626 627 /* Generic add symbol routine. This version is used by targets for 628 which the linker must collect constructors and destructors by name, 629 as the collect2 program does. */ 630 extern bfd_boolean _bfd_generic_link_add_symbols_collect 631 (bfd *, struct bfd_link_info *); 632 633 /* Generic archive add symbol routine. */ 634 extern bfd_boolean _bfd_generic_link_add_archive_symbols 635 (bfd *, struct bfd_link_info *, 636 bfd_boolean (*) (bfd *, struct bfd_link_info *, 637 struct bfd_link_hash_entry *, const char *, 638 bfd_boolean *)); 639 640 /* Forward declaration to avoid prototype errors. */ 641 typedef struct bfd_link_hash_entry _bfd_link_hash_entry; 642 643 /* Generic routine to add a single symbol. */ 644 extern bfd_boolean _bfd_generic_link_add_one_symbol 645 (struct bfd_link_info *, bfd *, const char *name, flagword, 646 asection *, bfd_vma, const char *, bfd_boolean copy, 647 bfd_boolean constructor, struct bfd_link_hash_entry **); 648 649 /* Generic routine to mark section as supplying symbols only. */ 650 extern void _bfd_generic_link_just_syms 651 (asection *, struct bfd_link_info *); 652 653 /* Generic routine that does nothing. */ 654 extern void _bfd_generic_copy_link_hash_symbol_type 655 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *); 656 657 /* Generic link routine. */ 658 extern bfd_boolean _bfd_generic_final_link 659 (bfd *, struct bfd_link_info *); 660 661 extern bfd_boolean _bfd_generic_link_split_section 662 (bfd *, struct bfd_section *); 663 664 extern bfd_boolean _bfd_generic_section_already_linked 665 (bfd *, asection *, struct bfd_link_info *); 666 667 /* Generic reloc_link_order processing routine. */ 668 extern bfd_boolean _bfd_generic_reloc_link_order 669 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 670 671 /* Default link order processing routine. */ 672 extern bfd_boolean _bfd_default_link_order 673 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 674 675 /* Count the number of reloc entries in a link order list. */ 676 extern unsigned int _bfd_count_link_order_relocs 677 (struct bfd_link_order *); 678 679 /* Final link relocation routine. */ 680 extern bfd_reloc_status_type _bfd_final_link_relocate 681 (reloc_howto_type *, bfd *, asection *, bfd_byte *, 682 bfd_vma, bfd_vma, bfd_vma); 683 684 /* Relocate a particular location by a howto and a value. */ 685 extern bfd_reloc_status_type _bfd_relocate_contents 686 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *); 687 688 /* Clear a given location using a given howto. */ 689 extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd, 690 asection *input_section, bfd_byte *location); 691 692 /* Link stabs in sections in the first pass. */ 693 694 extern bfd_boolean _bfd_link_section_stabs 695 (bfd *, struct stab_info *, asection *, asection *, void **, 696 bfd_size_type *); 697 698 /* Eliminate stabs for discarded functions and symbols. */ 699 extern bfd_boolean _bfd_discard_section_stabs 700 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *); 701 702 /* Write out the .stab section when linking stabs in sections. */ 703 704 extern bfd_boolean _bfd_write_section_stabs 705 (bfd *, struct stab_info *, asection *, void **, bfd_byte *); 706 707 /* Write out the .stabstr string table when linking stabs in sections. */ 708 709 extern bfd_boolean _bfd_write_stab_strings 710 (bfd *, struct stab_info *); 711 712 /* Find an offset within a .stab section when linking stabs in 713 sections. */ 714 715 extern bfd_vma _bfd_stab_section_offset 716 (asection *, void *, bfd_vma); 717 718 /* Register a SEC_MERGE section as a candidate for merging. */ 719 720 extern bfd_boolean _bfd_add_merge_section 721 (bfd *, void **, asection *, void **); 722 723 /* Attempt to merge SEC_MERGE sections. */ 724 725 extern bfd_boolean _bfd_merge_sections 726 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *)); 727 728 /* Write out a merged section. */ 729 730 extern bfd_boolean _bfd_write_merged_section 731 (bfd *, asection *, void *); 732 733 /* Find an offset within a modified SEC_MERGE section. */ 734 735 extern bfd_vma _bfd_merged_section_offset 736 (bfd *, asection **, void *, bfd_vma); 737 738 /* Tidy up when done. */ 739 740 extern void _bfd_merge_sections_free (void *); 741 742 /* Create a string table. */ 743 extern struct bfd_strtab_hash *_bfd_stringtab_init 744 (void); 745 746 /* Create an XCOFF .debug section style string table. */ 747 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init 748 (void); 749 750 /* Free a string table. */ 751 extern void _bfd_stringtab_free 752 (struct bfd_strtab_hash *); 753 754 /* Get the size of a string table. */ 755 extern bfd_size_type _bfd_stringtab_size 756 (struct bfd_strtab_hash *); 757 758 /* Add a string to a string table. */ 759 extern bfd_size_type _bfd_stringtab_add 760 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy); 761 762 /* Write out a string table. */ 763 extern bfd_boolean _bfd_stringtab_emit 764 (bfd *, struct bfd_strtab_hash *); 765 766 /* Check that endianness of input and output file match. */ 767 extern bfd_boolean _bfd_generic_verify_endian_match 768 (bfd *, bfd *); 769 770 /* Macros to tell if bfds are read or write enabled. 772 773 Note that bfds open for read may be scribbled into if the fd passed 774 to bfd_fdopenr is actually open both for read and write 775 simultaneously. However an output bfd will never be open for 776 read. Therefore sometimes you want to check bfd_read_p or 777 !bfd_read_p, and only sometimes bfd_write_p. 778 */ 779 780 #define bfd_read_p(abfd) \ 781 ((abfd)->direction == read_direction || (abfd)->direction == both_direction) 782 #define bfd_write_p(abfd) \ 783 ((abfd)->direction == write_direction || (abfd)->direction == both_direction) 784 785 void bfd_assert 786 (const char*,int); 787 788 #define BFD_ASSERT(x) \ 789 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0) 790 791 #define BFD_FAIL() \ 792 do { bfd_assert(__FILE__,__LINE__); } while (0) 793 794 extern void _bfd_abort 795 (const char *, int, const char *) ATTRIBUTE_NORETURN; 796 797 /* if gcc >= 2.6, we can give a function name, too */ 798 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) 799 #define __PRETTY_FUNCTION__ ((char *) NULL) 800 #endif 801 802 #undef abort 803 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) 804 805 /* Manipulate a system FILE but using BFD's "file_ptr", rather than 806 the system "off_t" or "off64_t", as the offset. */ 807 extern file_ptr real_ftell (FILE *file); 808 extern int real_fseek (FILE *file, file_ptr offset, int whence); 809 extern FILE *real_fopen (const char *filename, const char *modes); 810 811 /* List of supported target vectors, and the default vector (if 812 bfd_default_vector[0] is NULL, there is no default). */ 813 extern const bfd_target * const *bfd_target_vector; 814 extern const bfd_target *bfd_default_vector[]; 815 816 /* List of associated target vectors. */ 817 extern const bfd_target * const *bfd_associated_vector; 818 819 /* Functions shared by the ECOFF and MIPS ELF backends, which have no 820 other common header files. */ 821 822 #if defined(__STDC__) || defined(ALMOST_STDC) 823 struct ecoff_find_line; 824 #endif 825 826 extern bfd_boolean _bfd_ecoff_locate_line 827 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const, 828 const struct ecoff_debug_swap * const, struct ecoff_find_line *, 829 const char **, const char **, unsigned int *); 830 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr 831 (void *, bfd_byte *); 832 extern bfd_boolean _bfd_ecoff_get_accumulated_sym 833 (void *, bfd_byte *); 834 extern bfd_boolean _bfd_ecoff_get_accumulated_ss 835 (void *, bfd_byte *); 836 837 extern bfd_vma _bfd_get_gp_value 838 (bfd *); 839 extern void _bfd_set_gp_value 840 (bfd *, bfd_vma); 841 842 /* Function shared by the COFF and ELF SH backends, which have no 843 other common header files. */ 844 845 #ifndef _bfd_sh_align_load_span 846 extern bfd_boolean _bfd_sh_align_load_span 847 (bfd *, asection *, bfd_byte *, 848 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), 849 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *); 850 #endif 851 852 /* This is the shape of the elements inside the already_linked hash 853 table. It maps a name onto a list of already_linked elements with 854 the same name. */ 855 856 struct bfd_section_already_linked_hash_entry 857 { 858 struct bfd_hash_entry root; 859 struct bfd_section_already_linked *entry; 860 }; 861 862 struct bfd_section_already_linked 863 { 864 struct bfd_section_already_linked *next; 865 asection *sec; 866 }; 867 868 extern struct bfd_section_already_linked_hash_entry * 869 bfd_section_already_linked_table_lookup (const char *); 870 extern bfd_boolean bfd_section_already_linked_table_insert 871 (struct bfd_section_already_linked_hash_entry *, asection *); 872 extern void bfd_section_already_linked_table_traverse 873 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *, 874 void *), void *); 875 876 extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *); 877 extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *); 878 extern bfd_vma safe_read_leb128 (bfd *, bfd_byte *, unsigned int *, 879 bfd_boolean, const bfd_byte * const); 880
