1/* libbfd.h -- Declarations used by bfd library *implementation*. 2 (This include file is not for users of the library.) 3 4 Copyright (C) 1990-2017 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 28extern "C" { 29#endif 30 31/* If you want to read and write large blocks, you might want to do it 32 in quanta of this amount */ 33#define DEFAULT_BUFFERSIZE 8192 34 35/* Set a tdata field. Can't use the other macros for this, since they 36 do casts, and casting to the left of assignment isn't portable. */ 37#define set_tdata(bfd, v) ((bfd)->tdata.any = (v)) 38 39/* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points 40 to an instance of this structure. */ 41 42struct bfd_in_memory 43{ 44 /* Size of buffer. */ 45 bfd_size_type size; 46 /* Buffer holding contents of BFD. */ 47 bfd_byte *buffer; 48}; 49 50struct section_hash_entry 51{ 52 struct bfd_hash_entry root; 53 asection section; 54}; 55 56/* tdata for an archive. For an input archive, cache 57 needs to be free()'d. For an output archive, symdefs do. */ 58 59struct artdata 60{ 61 file_ptr first_file_filepos; 62 /* Speed up searching the armap */ 63 htab_t cache; 64 bfd *archive_head; /* Only interesting in output routines. */ 65 carsym *symdefs; /* The symdef entries. */ 66 symindex symdef_count; /* How many there are. */ 67 char *extended_names; /* Clever intel extension. */ 68 bfd_size_type extended_names_size; /* Size of extended names. */ 69 /* When more compilers are standard C, this can be a time_t. */ 70 long armap_timestamp; /* Timestamp value written into armap. 71 This is used for BSD archives to check 72 that the timestamp is recent enough 73 for the BSD linker to not complain, 74 just before we finish writing an 75 archive. */ 76 file_ptr armap_datepos; /* Position within archive to seek to 77 rewrite the date field. */ 78 void *tdata; /* Backend specific information. */ 79}; 80 81#define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data) 82 83/* Goes in bfd's arelt_data slot */ 84struct areltdata 85{ 86 char * arch_header; /* It's actually a string. */ 87 bfd_size_type parsed_size; /* Octets of filesize not including ar_hdr. */ 88 bfd_size_type extra_size; /* BSD4.4: extra bytes after the header. */ 89 char *filename; /* Null-terminated. */ 90 file_ptr origin; /* For element of a thin archive. */ 91 void *parent_cache; /* Where and how to find this member. */ 92 file_ptr key; 93}; 94 95#define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size) 96 97extern void *bfd_malloc 98 (bfd_size_type); 99extern void *bfd_realloc 100 (void *, bfd_size_type); 101extern void *bfd_realloc_or_free 102 (void *, bfd_size_type); 103extern void *bfd_zmalloc 104 (bfd_size_type); 105extern void *bfd_malloc2 106 (bfd_size_type, bfd_size_type); 107extern void *bfd_realloc2 108 (void *, bfd_size_type, bfd_size_type); 109extern void *bfd_zmalloc2 110 (bfd_size_type, bfd_size_type); 111 112extern void _bfd_error_handler (const char *s, ...); 113 114/* These routines allocate and free things on the BFD's objalloc. */ 115 116extern void *bfd_alloc2 117 (bfd *, bfd_size_type, bfd_size_type); 118extern void *bfd_zalloc2 119 (bfd *, bfd_size_type, bfd_size_type); 120extern void bfd_release 121 (bfd *, void *); 122 123bfd * _bfd_create_empty_archive_element_shell 124 (bfd *obfd); 125bfd * _bfd_look_for_bfd_in_cache 126 (bfd *, file_ptr); 127bfd_boolean _bfd_add_bfd_to_archive_cache 128 (bfd *, file_ptr, bfd *); 129bfd_boolean _bfd_generic_mkarchive 130 (bfd *abfd); 131char *_bfd_append_relative_path 132 (bfd *arch, char *elt_name); 133const bfd_target *bfd_generic_archive_p 134 (bfd *abfd); 135bfd_boolean bfd_slurp_armap 136 (bfd *abfd); 137bfd_boolean bfd_slurp_bsd_armap_f2 138 (bfd *abfd); 139#define bfd_slurp_bsd_armap bfd_slurp_armap 140#define bfd_slurp_coff_armap bfd_slurp_armap 141bfd_boolean _bfd_archive_64_bit_slurp_armap 142 (bfd *); 143bfd_boolean _bfd_archive_64_bit_write_armap 144 (bfd *, unsigned int, struct orl *, unsigned int, int); 145#define _bfd_archive_64_bit_slurp_extended_name_table \ 146 _bfd_slurp_extended_name_table 147#define _bfd_archive_64_bit_construct_extended_name_table \ 148 _bfd_archive_coff_construct_extended_name_table 149#define _bfd_archive_64_bit_truncate_arname \ 150 bfd_dont_truncate_arname 151#define _bfd_archive_64_bit_read_ar_hdr \ 152 _bfd_generic_read_ar_hdr 153#define _bfd_archive_64_bit_write_ar_hdr \ 154 _bfd_generic_write_ar_hdr 155#define _bfd_archive_64_bit_openr_next_archived_file \ 156 bfd_generic_openr_next_archived_file 157#define _bfd_archive_64_bit_get_elt_at_index \ 158 _bfd_generic_get_elt_at_index 159#define _bfd_archive_64_bit_generic_stat_arch_elt \ 160 bfd_generic_stat_arch_elt 161#define _bfd_archive_64_bit_update_armap_timestamp \ 162 bfd_true 163 164bfd_boolean _bfd_slurp_extended_name_table 165 (bfd *abfd); 166extern bfd_boolean _bfd_construct_extended_name_table 167 (bfd *, bfd_boolean, char **, bfd_size_type *); 168bfd_boolean _bfd_write_archive_contents 169 (bfd *abfd); 170bfd_boolean _bfd_compute_and_write_armap 171 (bfd *, unsigned int elength); 172bfd *_bfd_get_elt_at_filepos 173 (bfd *archive, file_ptr filepos); 174extern bfd *_bfd_generic_get_elt_at_index 175 (bfd *, symindex); 176bfd * _bfd_new_bfd 177 (void); 178bfd_boolean _bfd_free_cached_info 179 (bfd *); 180 181bfd_boolean bfd_false 182 (bfd *ignore); 183bfd_boolean bfd_true 184 (bfd *ignore); 185void *bfd_nullvoidptr 186 (bfd *ignore); 187int bfd_0 188 (bfd *ignore); 189unsigned int bfd_0u 190 (bfd *ignore); 191long bfd_0l 192 (bfd *ignore); 193long _bfd_n1 194 (bfd *ignore); 195void bfd_void 196 (bfd *ignore); 197 198bfd *_bfd_new_bfd_contained_in 199 (bfd *); 200const bfd_target *_bfd_dummy_target 201 (bfd *abfd); 202 203void bfd_dont_truncate_arname 204 (bfd *abfd, const char *filename, char *hdr); 205void bfd_bsd_truncate_arname 206 (bfd *abfd, const char *filename, char *hdr); 207void bfd_gnu_truncate_arname 208 (bfd *abfd, const char *filename, char *hdr); 209 210bfd_boolean bsd_write_armap 211 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count, 212 int stridx); 213 214bfd_boolean coff_write_armap 215 (bfd *arch, unsigned int elength, struct orl *map, unsigned int orl_count, 216 int stridx); 217 218extern void *_bfd_generic_read_ar_hdr 219 (bfd *); 220extern void _bfd_ar_spacepad 221 (char *, size_t, const char *, long); 222extern bfd_boolean _bfd_ar_sizepad 223 (char *, size_t, bfd_size_type); 224 225extern void *_bfd_generic_read_ar_hdr_mag 226 (bfd *, const char *); 227 228extern bfd_boolean _bfd_generic_write_ar_hdr 229 (bfd *, bfd *); 230 231extern bfd_boolean _bfd_bsd44_write_ar_hdr 232 (bfd *, bfd *); 233 234bfd * bfd_generic_openr_next_archived_file 235 (bfd *archive, bfd *last_file); 236 237int bfd_generic_stat_arch_elt 238 (bfd *, struct stat *); 239 240#define _bfd_read_ar_hdr(abfd) \ 241 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd)) 242#define _bfd_write_ar_hdr(archive, abfd) \ 243 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd)) 244 245/* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use 246 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */ 247 248#define _bfd_generic_close_and_cleanup _bfd_archive_close_and_cleanup 249extern bfd_boolean _bfd_archive_close_and_cleanup 250 (bfd *); 251#define _bfd_generic_bfd_free_cached_info bfd_true 252extern bfd_boolean _bfd_generic_new_section_hook 253 (bfd *, asection *); 254extern bfd_boolean _bfd_generic_get_section_contents 255 (bfd *, asection *, void *, file_ptr, bfd_size_type); 256extern bfd_boolean _bfd_generic_get_section_contents_in_window 257 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type); 258 259/* Generic routines to use for BFD_JUMP_TABLE_COPY. Use 260 BFD_JUMP_TABLE_COPY (_bfd_generic). */ 261 262#define _bfd_generic_bfd_copy_private_bfd_data \ 263 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 264#define _bfd_generic_bfd_merge_private_bfd_data \ 265 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_true) 266#define _bfd_generic_bfd_set_private_flags \ 267 ((bfd_boolean (*) (bfd *, flagword)) bfd_true) 268#define _bfd_generic_bfd_copy_private_section_data \ 269 ((bfd_boolean (*) (bfd *, asection *, bfd *, asection *)) bfd_true) 270#define _bfd_generic_bfd_copy_private_symbol_data \ 271 ((bfd_boolean (*) (bfd *, asymbol *, bfd *, asymbol *)) bfd_true) 272#define _bfd_generic_bfd_copy_private_header_data \ 273 ((bfd_boolean (*) (bfd *, bfd *)) bfd_true) 274#define _bfd_generic_bfd_print_private_bfd_data \ 275 ((bfd_boolean (*) (bfd *, void *)) bfd_true) 276 277extern bfd_boolean _bfd_generic_init_private_section_data 278 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *); 279 280/* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file 281 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */ 282 283extern char *_bfd_nocore_core_file_failing_command 284 (bfd *); 285extern int _bfd_nocore_core_file_failing_signal 286 (bfd *); 287extern bfd_boolean _bfd_nocore_core_file_matches_executable_p 288 (bfd *, bfd *); 289extern int _bfd_nocore_core_file_pid 290 (bfd *); 291 292/* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive 293 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */ 294 295#define _bfd_noarchive_slurp_armap bfd_false 296#define _bfd_noarchive_slurp_extended_name_table bfd_false 297#define _bfd_noarchive_construct_extended_name_table \ 298 ((bfd_boolean (*) (bfd *, char **, bfd_size_type *, const char **)) \ 299 bfd_false) 300#define _bfd_noarchive_truncate_arname \ 301 ((void (*) (bfd *, const char *, char *)) bfd_void) 302#define _bfd_noarchive_write_armap \ 303 ((bfd_boolean (*) (bfd *, unsigned int, struct orl *, unsigned int, int)) \ 304 bfd_false) 305#define _bfd_noarchive_read_ar_hdr bfd_nullvoidptr 306#define _bfd_noarchive_write_ar_hdr \ 307 ((bfd_boolean (*) (bfd *, bfd *)) bfd_false) 308#define _bfd_noarchive_openr_next_archived_file \ 309 ((bfd *(*) (bfd *, bfd *)) bfd_nullvoidptr) 310#define _bfd_noarchive_get_elt_at_index \ 311 ((bfd *(*) (bfd *, symindex)) bfd_nullvoidptr) 312#define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt 313#define _bfd_noarchive_update_armap_timestamp bfd_false 314 315/* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style 316 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */ 317 318#define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap 319#define _bfd_archive_bsd_slurp_extended_name_table \ 320 _bfd_slurp_extended_name_table 321extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table 322 (bfd *, char **, bfd_size_type *, const char **); 323#define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname 324#define _bfd_archive_bsd_write_armap bsd_write_armap 325#define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr 326#define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr 327#define _bfd_archive_bsd_openr_next_archived_file \ 328 bfd_generic_openr_next_archived_file 329#define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index 330#define _bfd_archive_bsd_generic_stat_arch_elt \ 331 bfd_generic_stat_arch_elt 332extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp 333 (bfd *); 334 335/* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style 336 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */ 337 338#define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap 339#define _bfd_archive_coff_slurp_extended_name_table \ 340 _bfd_slurp_extended_name_table 341extern bfd_boolean _bfd_archive_coff_construct_extended_name_table 342 (bfd *, char **, bfd_size_type *, const char **); 343#define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname 344#define _bfd_archive_coff_write_armap coff_write_armap 345#define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr 346#define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr 347#define _bfd_archive_coff_openr_next_archived_file \ 348 bfd_generic_openr_next_archived_file 349#define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index 350#define _bfd_archive_coff_generic_stat_arch_elt \ 351 bfd_generic_stat_arch_elt 352#define _bfd_archive_coff_update_armap_timestamp bfd_true 353 354/* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style 355 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */ 356 357#define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap 358#define _bfd_archive_bsd44_slurp_extended_name_table \ 359 _bfd_slurp_extended_name_table 360extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table 361 (bfd *, char **, bfd_size_type *, const char **); 362#define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname 363#define _bfd_archive_bsd44_write_armap bsd_write_armap 364#define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr 365#define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr 366#define _bfd_archive_bsd44_openr_next_archived_file \ 367 bfd_generic_openr_next_archived_file 368#define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index 369#define _bfd_archive_bsd44_generic_stat_arch_elt \ 370 bfd_generic_stat_arch_elt 371#define _bfd_archive_bsd44_update_armap_timestamp \ 372 _bfd_archive_bsd_update_armap_timestamp 373 374/* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style 375 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them 376 are irrelevant. */ 377 378extern bfd_boolean _bfd_vms_lib_write_archive_contents (bfd *arch); 379#define _bfd_vms_lib_slurp_armap _bfd_noarchive_slurp_armap 380#define _bfd_vms_lib_slurp_extended_name_table \ 381 _bfd_noarchive_slurp_extended_name_table 382#define _bfd_vms_lib_construct_extended_name_table \ 383 _bfd_noarchive_construct_extended_name_table 384#define _bfd_vms_lib_truncate_arname _bfd_noarchive_truncate_arname 385#define _bfd_vms_lib_write_armap _bfd_noarchive_write_armap 386#define _bfd_vms_lib_read_ar_hdr _bfd_noarchive_read_ar_hdr 387#define _bfd_vms_lib_write_ar_hdr _bfd_noarchive_write_ar_hdr 388extern bfd *_bfd_vms_lib_openr_next_archived_file (bfd *, bfd *); 389extern bfd *_bfd_vms_lib_get_elt_at_index (bfd *, symindex); 390extern int _bfd_vms_lib_generic_stat_arch_elt (bfd *, struct stat *); 391#define _bfd_vms_lib_update_armap_timestamp bfd_true 392 393/* Extra routines for VMS style archives. */ 394 395extern symindex _bfd_vms_lib_find_symbol (bfd *, const char *); 396extern bfd *_bfd_vms_lib_get_imagelib_file (bfd *); 397extern const bfd_target *_bfd_vms_lib_alpha_archive_p (bfd *abfd); 398extern const bfd_target *_bfd_vms_lib_ia64_archive_p (bfd *abfd); 399extern bfd_boolean _bfd_vms_lib_alpha_mkarchive (bfd *abfd); 400extern bfd_boolean _bfd_vms_lib_ia64_mkarchive (bfd *abfd); 401 402/* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol 403 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */ 404 405#define _bfd_nosymbols_get_symtab_upper_bound _bfd_n1 406#define _bfd_nosymbols_canonicalize_symtab \ 407 ((long (*) (bfd *, asymbol **)) _bfd_n1) 408#define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol 409#define _bfd_nosymbols_print_symbol \ 410 ((void (*) (bfd *, void *, asymbol *, bfd_print_symbol_type)) bfd_void) 411#define _bfd_nosymbols_get_symbol_info \ 412 ((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void) 413#define _bfd_nosymbols_get_symbol_version_string \ 414 ((const char *(*) (bfd *, asymbol *, bfd_boolean *)) bfd_nullvoidptr) 415#define _bfd_nosymbols_bfd_is_local_label_name \ 416 ((bfd_boolean (*) (bfd *, const char *)) bfd_false) 417#define _bfd_nosymbols_bfd_is_target_special_symbol \ 418 ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false) 419#define _bfd_nosymbols_get_lineno \ 420 ((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr) 421#define _bfd_nosymbols_find_nearest_line \ 422 ((bfd_boolean (*) (bfd *, asymbol **, asection *, bfd_vma, \ 423 const char **, const char **, unsigned int *, \ 424 unsigned int *)) \ 425 bfd_false) 426#define _bfd_nosymbols_find_line \ 427 ((bfd_boolean (*) (bfd *, asymbol **, asymbol *, \ 428 const char **, unsigned int *)) \ 429 bfd_false) 430#define _bfd_nosymbols_find_inliner_info \ 431 ((bfd_boolean (*) (bfd *, const char **, const char **, unsigned int *)) \ 432 bfd_false) 433#define _bfd_nosymbols_bfd_make_debug_symbol \ 434 ((asymbol *(*) (bfd *, void *, unsigned long)) bfd_nullvoidptr) 435#define _bfd_nosymbols_read_minisymbols \ 436 ((long (*) (bfd *, bfd_boolean, void **, unsigned int *)) _bfd_n1) 437#define _bfd_nosymbols_minisymbol_to_symbol \ 438 ((asymbol *(*) (bfd *, bfd_boolean, const void *, asymbol *)) \ 439 bfd_nullvoidptr) 440 441/* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc 442 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */ 443 444extern long _bfd_norelocs_get_reloc_upper_bound (bfd *, asection *); 445extern long _bfd_norelocs_canonicalize_reloc (bfd *, asection *, 446 arelent **, asymbol **); 447#define _bfd_norelocs_bfd_reloc_type_lookup \ 448 ((reloc_howto_type *(*) (bfd *, bfd_reloc_code_real_type)) bfd_nullvoidptr) 449#define _bfd_norelocs_bfd_reloc_name_lookup \ 450 ((reloc_howto_type *(*) (bfd *, const char *)) bfd_nullvoidptr) 451 452/* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not 453 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */ 454 455#define _bfd_nowrite_set_arch_mach \ 456 ((bfd_boolean (*) (bfd *, enum bfd_architecture, unsigned long)) \ 457 bfd_false) 458#define _bfd_nowrite_set_section_contents \ 459 ((bfd_boolean (*) (bfd *, asection *, const void *, file_ptr, bfd_size_type)) \ 460 bfd_false) 461 462/* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use 463 BFD_JUMP_TABLE_WRITE (_bfd_generic). */ 464 465#define _bfd_generic_set_arch_mach bfd_default_set_arch_mach 466extern bfd_boolean _bfd_generic_set_section_contents 467 (bfd *, asection *, const void *, file_ptr, bfd_size_type); 468 469/* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not 470 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */ 471 472#define _bfd_nolink_sizeof_headers \ 473 ((int (*) (bfd *, struct bfd_link_info *)) bfd_0) 474#define _bfd_nolink_bfd_get_relocated_section_contents \ 475 ((bfd_byte *(*) (bfd *, struct bfd_link_info *, struct bfd_link_order *, \ 476 bfd_byte *, bfd_boolean, asymbol **)) \ 477 bfd_nullvoidptr) 478#define _bfd_nolink_bfd_relax_section \ 479 ((bfd_boolean (*) \ 480 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *)) \ 481 bfd_false) 482#define _bfd_nolink_bfd_gc_sections \ 483 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 484 bfd_false) 485#define _bfd_nolink_bfd_lookup_section_flags \ 486 ((bfd_boolean (*) (struct bfd_link_info *, struct flag_info *, asection *)) \ 487 bfd_0) 488#define _bfd_nolink_bfd_merge_sections \ 489 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) \ 490 bfd_false) 491#define _bfd_nolink_bfd_is_group_section \ 492 ((bfd_boolean (*) (bfd *, const struct bfd_section *)) \ 493 bfd_false) 494#define _bfd_nolink_bfd_discard_group \ 495 ((bfd_boolean (*) (bfd *, struct bfd_section *)) \ 496 bfd_false) 497#define _bfd_nolink_bfd_link_hash_table_create \ 498 ((struct bfd_link_hash_table *(*) (bfd *)) bfd_nullvoidptr) 499#define _bfd_nolink_bfd_link_add_symbols \ 500 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 501#define _bfd_nolink_bfd_link_just_syms \ 502 ((void (*) (asection *, struct bfd_link_info *)) bfd_void) 503#define _bfd_nolink_bfd_copy_link_hash_symbol_type \ 504 ((void (*) (bfd *, struct bfd_link_hash_entry *, \ 505 struct bfd_link_hash_entry *)) bfd_void) 506#define _bfd_nolink_bfd_final_link \ 507 ((bfd_boolean (*) (bfd *, struct bfd_link_info *)) bfd_false) 508#define _bfd_nolink_bfd_link_split_section \ 509 ((bfd_boolean (*) (bfd *, struct bfd_section *)) bfd_false) 510#define _bfd_nolink_section_already_linked \ 511 ((bfd_boolean (*) (bfd *, asection *, \ 512 struct bfd_link_info *)) bfd_false) 513#define _bfd_nolink_bfd_define_common_symbol \ 514 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, \ 515 struct bfd_link_hash_entry *)) bfd_false) 516#define _bfd_nolink_bfd_link_check_relocs \ 517 _bfd_generic_link_check_relocs 518 519/* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not 520 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC 521 (_bfd_nodynamic). */ 522 523#define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_n1 524#define _bfd_nodynamic_canonicalize_dynamic_symtab \ 525 ((long (*) (bfd *, asymbol **)) _bfd_n1) 526#define _bfd_nodynamic_get_synthetic_symtab \ 527 ((long (*) (bfd *, long, asymbol **, long, asymbol **, asymbol **)) _bfd_n1) 528#define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_n1 529#define _bfd_nodynamic_canonicalize_dynamic_reloc \ 530 ((long (*) (bfd *, arelent **, asymbol **)) _bfd_n1) 531 532/* Generic routine to determine of the given symbol is a local 533 label. */ 534extern bfd_boolean bfd_generic_is_local_label_name 535 (bfd *, const char *); 536 537/* Generic minisymbol routines. */ 538extern long _bfd_generic_read_minisymbols 539 (bfd *, bfd_boolean, void **, unsigned int *); 540extern asymbol *_bfd_generic_minisymbol_to_symbol 541 (bfd *, bfd_boolean, const void *, asymbol *); 542 543/* Find the nearest line using .stab/.stabstr sections. */ 544extern bfd_boolean _bfd_stab_section_find_nearest_line 545 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *, 546 const char **, const char **, unsigned int *, void **); 547 548/* Find the nearest line using DWARF 1 debugging information. */ 549extern bfd_boolean _bfd_dwarf1_find_nearest_line 550 (bfd *, asymbol **, asection *, bfd_vma, 551 const char **, const char **, unsigned int *); 552 553struct dwarf_debug_section 554{ 555 const char *uncompressed_name; 556 const char *compressed_name; 557}; 558 559/* Map of uncompressed DWARF debug section name to compressed one. It 560 is terminated by NULL uncompressed_name. */ 561 562extern const struct dwarf_debug_section dwarf_debug_sections[]; 563 564/* Find the nearest line using DWARF 2 debugging information. */ 565extern bfd_boolean _bfd_dwarf2_find_nearest_line 566 (bfd *, asymbol **, asymbol *, asection *, bfd_vma, 567 const char **, const char **, unsigned int *, unsigned int *, 568 const struct dwarf_debug_section *, unsigned int, void **); 569 570/* Find the bias between DWARF addresses and real addresses. */ 571extern bfd_signed_vma _bfd_dwarf2_find_symbol_bias 572 (asymbol **, void **); 573 574/* Find inliner info after calling bfd_find_nearest_line. */ 575extern bfd_boolean _bfd_dwarf2_find_inliner_info 576 (bfd *, const char **, const char **, unsigned int *, void **); 577 578/* Read DWARF 2 debugging information. */ 579extern bfd_boolean _bfd_dwarf2_slurp_debug_info 580 (bfd *, bfd *, const struct dwarf_debug_section *, asymbol **, void **, 581 bfd_boolean); 582 583/* Clean up the data used to handle DWARF 2 debugging information. */ 584extern void _bfd_dwarf2_cleanup_debug_info 585 (bfd *, void **); 586 587/* Create a new section entry. */ 588extern struct bfd_hash_entry *bfd_section_hash_newfunc 589 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); 590 591/* A routine to create entries for a bfd_link_hash_table. */ 592extern struct bfd_hash_entry *_bfd_link_hash_newfunc 593 (struct bfd_hash_entry *entry, struct bfd_hash_table *table, 594 const char *string); 595 596/* Initialize a bfd_link_hash_table. */ 597extern bfd_boolean _bfd_link_hash_table_init 598 (struct bfd_link_hash_table *, bfd *, 599 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 600 struct bfd_hash_table *, 601 const char *), 602 unsigned int); 603 604/* Generic link hash table creation routine. */ 605extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create 606 (bfd *); 607 608/* Generic link hash table destruction routine. */ 609extern void _bfd_generic_link_hash_table_free 610 (bfd *); 611 612/* Generic add symbol routine. */ 613extern bfd_boolean _bfd_generic_link_add_symbols 614 (bfd *, struct bfd_link_info *); 615 616/* Generic archive add symbol routine. */ 617extern bfd_boolean _bfd_generic_link_add_archive_symbols 618 (bfd *, struct bfd_link_info *, 619 bfd_boolean (*) (bfd *, struct bfd_link_info *, 620 struct bfd_link_hash_entry *, const char *, 621 bfd_boolean *)); 622 623/* Forward declaration to avoid prototype errors. */ 624typedef struct bfd_link_hash_entry _bfd_link_hash_entry; 625 626/* Generic routine to add a single symbol. */ 627extern bfd_boolean _bfd_generic_link_add_one_symbol 628 (struct bfd_link_info *, bfd *, const char *name, flagword, 629 asection *, bfd_vma, const char *, bfd_boolean copy, 630 bfd_boolean constructor, struct bfd_link_hash_entry **); 631 632/* Generic routine to mark section as supplying symbols only. */ 633extern void _bfd_generic_link_just_syms 634 (asection *, struct bfd_link_info *); 635 636/* Generic routine that does nothing. */ 637extern void _bfd_generic_copy_link_hash_symbol_type 638 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *); 639 640/* Generic link routine. */ 641extern bfd_boolean _bfd_generic_final_link 642 (bfd *, struct bfd_link_info *); 643 644extern bfd_boolean _bfd_generic_link_split_section 645 (bfd *, struct bfd_section *); 646 647extern bfd_boolean _bfd_generic_section_already_linked 648 (bfd *, asection *, struct bfd_link_info *); 649 650/* Generic reloc_link_order processing routine. */ 651extern bfd_boolean _bfd_generic_reloc_link_order 652 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 653 654/* Default link order processing routine. */ 655extern bfd_boolean _bfd_default_link_order 656 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *); 657 658/* Count the number of reloc entries in a link order list. */ 659extern unsigned int _bfd_count_link_order_relocs 660 (struct bfd_link_order *); 661 662/* Final link relocation routine. */ 663extern bfd_reloc_status_type _bfd_final_link_relocate 664 (reloc_howto_type *, bfd *, asection *, bfd_byte *, 665 bfd_vma, bfd_vma, bfd_vma); 666 667/* Relocate a particular location by a howto and a value. */ 668extern bfd_reloc_status_type _bfd_relocate_contents 669 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *); 670 671/* Clear a given location using a given howto. */ 672extern void _bfd_clear_contents (reloc_howto_type *howto, bfd *input_bfd, 673 asection *input_section, bfd_byte *location); 674 675/* Link stabs in sections in the first pass. */ 676 677extern bfd_boolean _bfd_link_section_stabs 678 (bfd *, struct stab_info *, asection *, asection *, void **, 679 bfd_size_type *); 680 681/* Eliminate stabs for discarded functions and symbols. */ 682extern bfd_boolean _bfd_discard_section_stabs 683 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *); 684 685/* Write out the .stab section when linking stabs in sections. */ 686 687extern bfd_boolean _bfd_write_section_stabs 688 (bfd *, struct stab_info *, asection *, void **, bfd_byte *); 689 690/* Write out the .stabstr string table when linking stabs in sections. */ 691 692extern bfd_boolean _bfd_write_stab_strings 693 (bfd *, struct stab_info *); 694 695/* Find an offset within a .stab section when linking stabs in 696 sections. */ 697 698extern bfd_vma _bfd_stab_section_offset 699 (asection *, void *, bfd_vma); 700 701/* Register a SEC_MERGE section as a candidate for merging. */ 702 703extern bfd_boolean _bfd_add_merge_section 704 (bfd *, void **, asection *, void **); 705 706/* Attempt to merge SEC_MERGE sections. */ 707 708extern bfd_boolean _bfd_merge_sections 709 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *)); 710 711/* Write out a merged section. */ 712 713extern bfd_boolean _bfd_write_merged_section 714 (bfd *, asection *, void *); 715 716/* Find an offset within a modified SEC_MERGE section. */ 717 718extern bfd_vma _bfd_merged_section_offset 719 (bfd *, asection **, void *, bfd_vma); 720 721/* Tidy up when done. */ 722 723extern void _bfd_merge_sections_free (void *); 724 725/* Create a string table. */ 726extern struct bfd_strtab_hash *_bfd_stringtab_init 727 (void); 728 729/* Create an XCOFF .debug section style string table. */ 730extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init 731 (void); 732 733/* Free a string table. */ 734extern void _bfd_stringtab_free 735 (struct bfd_strtab_hash *); 736 737/* Get the size of a string table. */ 738extern bfd_size_type _bfd_stringtab_size 739 (struct bfd_strtab_hash *); 740 741/* Add a string to a string table. */ 742extern bfd_size_type _bfd_stringtab_add 743 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy); 744 745/* Write out a string table. */ 746extern bfd_boolean _bfd_stringtab_emit 747 (bfd *, struct bfd_strtab_hash *); 748 749/* Macros to tell if bfds are read or write enabled. 750 751 Note that bfds open for read may be scribbled into if the fd passed 752 to bfd_fdopenr is actually open both for read and write 753 simultaneously. However an output bfd will never be open for 754 read. Therefore sometimes you want to check bfd_read_p or 755 !bfd_read_p, and only sometimes bfd_write_p. 756*/ 757 758#define bfd_read_p(abfd) \ 759 ((abfd)->direction == read_direction || (abfd)->direction == both_direction) 760#define bfd_write_p(abfd) \ 761 ((abfd)->direction == write_direction || (abfd)->direction == both_direction) 762 763void bfd_assert 764 (const char*,int); 765 766#define BFD_ASSERT(x) \ 767 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0) 768 769#define BFD_FAIL() \ 770 do { bfd_assert(__FILE__,__LINE__); } while (0) 771 772extern void _bfd_abort 773 (const char *, int, const char *) ATTRIBUTE_NORETURN; 774 775/* if gcc >= 2.6, we can give a function name, too */ 776#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) 777#define __PRETTY_FUNCTION__ ((char *) NULL) 778#endif 779 780#undef abort 781#define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) 782 783/* Manipulate a system FILE but using BFD's "file_ptr", rather than 784 the system "off_t" or "off64_t", as the offset. */ 785extern file_ptr real_ftell (FILE *file); 786extern int real_fseek (FILE *file, file_ptr offset, int whence); 787extern FILE *real_fopen (const char *filename, const char *modes); 788 789/* List of supported target vectors, and the default vector (if 790 bfd_default_vector[0] is NULL, there is no default). */ 791extern const bfd_target * const *bfd_target_vector; 792extern const bfd_target *bfd_default_vector[]; 793 794/* List of associated target vectors. */ 795extern const bfd_target * const *bfd_associated_vector; 796 797/* Functions shared by the ECOFF and MIPS ELF backends, which have no 798 other common header files. */ 799 800#if defined(__STDC__) || defined(ALMOST_STDC) 801struct ecoff_find_line; 802#endif 803 804extern bfd_boolean _bfd_ecoff_locate_line 805 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const, 806 const struct ecoff_debug_swap * const, struct ecoff_find_line *, 807 const char **, const char **, unsigned int *); 808extern bfd_boolean _bfd_ecoff_get_accumulated_pdr 809 (void *, bfd_byte *); 810extern bfd_boolean _bfd_ecoff_get_accumulated_sym 811 (void *, bfd_byte *); 812extern bfd_boolean _bfd_ecoff_get_accumulated_ss 813 (void *, bfd_byte *); 814 815extern bfd_vma _bfd_get_gp_value 816 (bfd *); 817extern void _bfd_set_gp_value 818 (bfd *, bfd_vma); 819 820/* Function shared by the COFF and ELF SH backends, which have no 821 other common header files. */ 822 823#ifndef _bfd_sh_align_load_span 824extern bfd_boolean _bfd_sh_align_load_span 825 (bfd *, asection *, bfd_byte *, 826 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), 827 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *); 828#endif 829 830/* This is the shape of the elements inside the already_linked hash 831 table. It maps a name onto a list of already_linked elements with 832 the same name. */ 833 834struct bfd_section_already_linked_hash_entry 835{ 836 struct bfd_hash_entry root; 837 struct bfd_section_already_linked *entry; 838}; 839 840struct bfd_section_already_linked 841{ 842 struct bfd_section_already_linked *next; 843 asection *sec; 844}; 845 846extern struct bfd_section_already_linked_hash_entry * 847 bfd_section_already_linked_table_lookup (const char *); 848extern bfd_boolean bfd_section_already_linked_table_insert 849 (struct bfd_section_already_linked_hash_entry *, asection *); 850extern void bfd_section_already_linked_table_traverse 851 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *, 852 void *), void *); 853 854extern bfd_vma read_unsigned_leb128 (bfd *, bfd_byte *, unsigned int *); 855extern bfd_signed_vma read_signed_leb128 (bfd *, bfd_byte *, unsigned int *); 856extern bfd_vma safe_read_leb128 (bfd *, bfd_byte *, unsigned int *, 857 bfd_boolean, const bfd_byte * const); 858