1 /* libbfd.h -- Declarations used by bfd library *implementation*. 2 (This include file is not for users of the library.) 3 4 Copyright (C) 1990-2020 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 #ifndef _LIBBFD_H 26 #define _LIBBFD_H 1 27 28 #ifndef ATTRIBUTE_HIDDEN 29 #if HAVE_HIDDEN 30 #define ATTRIBUTE_HIDDEN __attribute__ ((__visibility__ ("hidden"))) 31 #else 32 #define ATTRIBUTE_HIDDEN 33 #endif 34 #endif 35 36 #include "hashtab.h" 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 /* If you want to read and write large blocks, you might want to do it 43 in quanta of this amount */ 44 #define DEFAULT_BUFFERSIZE 8192 45 46 /* Set a tdata field. Can't use the other macros for this, since they 47 do casts, and casting to the left of assignment isn't portable. */ 48 #define set_tdata(bfd, v) ((bfd)->tdata.any = (v)) 49 50 /* If BFD_IN_MEMORY is set for a BFD, then the iostream fields points 51 to an instance of this structure. */ 52 53 struct bfd_in_memory 54 { 55 /* Size of buffer. */ 56 bfd_size_type size; 57 /* Buffer holding contents of BFD. */ 58 bfd_byte *buffer; 59 }; 60 61 struct section_hash_entry 62 { 63 struct bfd_hash_entry root; 64 asection section; 65 }; 66 67 /* Unique section id. */ 68 extern unsigned int _bfd_section_id ATTRIBUTE_HIDDEN; 69 70 /* tdata for an archive. For an input archive, cache 71 needs to be free()'d. For an output archive, symdefs do. */ 72 73 struct artdata 74 { 75 file_ptr first_file_filepos; 76 /* Speed up searching the armap */ 77 htab_t cache; 78 bfd *archive_head; /* Only interesting in output routines. */ 79 carsym *symdefs; /* The symdef entries. */ 80 symindex symdef_count; /* How many there are. */ 81 char *extended_names; /* Clever intel extension. */ 82 bfd_size_type extended_names_size; /* Size of extended names. */ 83 /* When more compilers are standard C, this can be a time_t. */ 84 long armap_timestamp; /* Timestamp value written into armap. 85 This is used for BSD archives to check 86 that the timestamp is recent enough 87 for the BSD linker to not complain, 88 just before we finish writing an 89 archive. */ 90 file_ptr armap_datepos; /* Position within archive to seek to 91 rewrite the date field. */ 92 void *tdata; /* Backend specific information. */ 93 }; 94 95 #define bfd_ardata(bfd) ((bfd)->tdata.aout_ar_data) 96 97 /* Goes in bfd's arelt_data slot */ 98 struct areltdata 99 { 100 char * arch_header; /* It's actually a string. */ 101 bfd_size_type parsed_size; /* Octets of filesize not including ar_hdr. */ 102 bfd_size_type extra_size; /* BSD4.4: extra bytes after the header. */ 103 char *filename; /* Null-terminated. */ 104 file_ptr origin; /* For element of a thin archive. */ 105 void *parent_cache; /* Where and how to find this member. */ 106 file_ptr key; 107 }; 108 109 #define arelt_size(bfd) (((struct areltdata *)((bfd)->arelt_data))->parsed_size) 110 111 extern void *bfd_malloc 112 (bfd_size_type) ATTRIBUTE_HIDDEN; 113 extern void *bfd_realloc 114 (void *, bfd_size_type) ATTRIBUTE_HIDDEN; 115 extern void *bfd_realloc_or_free 116 (void *, bfd_size_type) ATTRIBUTE_HIDDEN; 117 extern void *bfd_zmalloc 118 (bfd_size_type) ATTRIBUTE_HIDDEN; 119 120 static inline char * 121 bfd_strdup (const char *str) 122 { 123 size_t len = strlen (str) + 1; 124 char *buf = bfd_malloc (len); 125 if (buf != NULL) 126 memcpy (buf, str, len); 127 return buf; 128 } 129 /* These routines allocate and free things on the BFD's objalloc. */ 130 131 extern void bfd_release 132 (bfd *, void *) ATTRIBUTE_HIDDEN; 133 134 extern bfd * _bfd_create_empty_archive_element_shell 135 (bfd *) ATTRIBUTE_HIDDEN; 136 extern bfd * _bfd_look_for_bfd_in_cache 137 (bfd *, file_ptr) ATTRIBUTE_HIDDEN; 138 extern bfd_boolean _bfd_add_bfd_to_archive_cache 139 (bfd *, file_ptr, bfd *) ATTRIBUTE_HIDDEN; 140 extern bfd_boolean _bfd_generic_mkarchive 141 (bfd *) ATTRIBUTE_HIDDEN; 142 extern char *_bfd_append_relative_path 143 (bfd *, char *) ATTRIBUTE_HIDDEN; 144 extern bfd_cleanup bfd_generic_archive_p 145 (bfd *) ATTRIBUTE_HIDDEN; 146 extern bfd_boolean bfd_slurp_armap 147 (bfd *) ATTRIBUTE_HIDDEN; 148 #define bfd_slurp_bsd_armap bfd_slurp_armap 149 #define bfd_slurp_coff_armap bfd_slurp_armap 150 extern bfd_boolean _bfd_archive_64_bit_slurp_armap 151 (bfd *) ATTRIBUTE_HIDDEN; 152 extern bfd_boolean _bfd_archive_64_bit_write_armap 153 (bfd *, unsigned int, struct orl *, unsigned int, int) ATTRIBUTE_HIDDEN; 154 #define _bfd_archive_64_bit_slurp_extended_name_table \ 155 _bfd_slurp_extended_name_table 156 #define _bfd_archive_64_bit_construct_extended_name_table \ 157 _bfd_archive_coff_construct_extended_name_table 158 #define _bfd_archive_64_bit_truncate_arname \ 159 bfd_dont_truncate_arname 160 #define _bfd_archive_64_bit_read_ar_hdr \ 161 _bfd_generic_read_ar_hdr 162 #define _bfd_archive_64_bit_write_ar_hdr \ 163 _bfd_generic_write_ar_hdr 164 #define _bfd_archive_64_bit_openr_next_archived_file \ 165 bfd_generic_openr_next_archived_file 166 #define _bfd_archive_64_bit_get_elt_at_index \ 167 _bfd_generic_get_elt_at_index 168 #define _bfd_archive_64_bit_generic_stat_arch_elt \ 169 bfd_generic_stat_arch_elt 170 #define _bfd_archive_64_bit_update_armap_timestamp _bfd_bool_bfd_true 171 172 extern bfd_boolean _bfd_slurp_extended_name_table 173 (bfd *) ATTRIBUTE_HIDDEN; 174 extern bfd_boolean _bfd_construct_extended_name_table 175 (bfd *, bfd_boolean, char **, bfd_size_type *) ATTRIBUTE_HIDDEN; 176 extern bfd_boolean _bfd_write_archive_contents 177 (bfd *) ATTRIBUTE_HIDDEN; 178 extern bfd_boolean _bfd_compute_and_write_armap 179 (bfd *, unsigned int) ATTRIBUTE_HIDDEN; 180 extern bfd *_bfd_get_elt_at_filepos 181 (bfd *, file_ptr) ATTRIBUTE_HIDDEN; 182 extern bfd *_bfd_generic_get_elt_at_index 183 (bfd *, symindex) ATTRIBUTE_HIDDEN; 184 extern bfd * _bfd_new_bfd 185 (void) ATTRIBUTE_HIDDEN; 186 extern bfd_boolean _bfd_free_cached_info 187 (bfd *) ATTRIBUTE_HIDDEN; 188 189 extern bfd_boolean _bfd_bool_bfd_false 190 (bfd *) ATTRIBUTE_HIDDEN; 191 extern bfd_boolean _bfd_bool_bfd_asymbol_false 192 (bfd *, asymbol *) ATTRIBUTE_HIDDEN; 193 extern bfd_boolean _bfd_bool_bfd_false_error 194 (bfd *) ATTRIBUTE_HIDDEN; 195 extern bfd_boolean _bfd_bool_bfd_link_false_error 196 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN; 197 extern bfd_boolean _bfd_bool_bfd_true 198 (bfd *) ATTRIBUTE_HIDDEN; 199 extern bfd_boolean _bfd_bool_bfd_link_true 200 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN; 201 extern bfd_boolean _bfd_bool_bfd_bfd_true 202 (bfd *, bfd *) ATTRIBUTE_HIDDEN; 203 extern bfd_boolean _bfd_bool_bfd_uint_true 204 (bfd *, unsigned int) ATTRIBUTE_HIDDEN; 205 extern bfd_boolean _bfd_bool_bfd_asection_bfd_asection_true 206 (bfd *, asection *, bfd *, asection *) ATTRIBUTE_HIDDEN; 207 extern bfd_boolean _bfd_bool_bfd_asymbol_bfd_asymbol_true 208 (bfd *, asymbol *, bfd *, asymbol *) ATTRIBUTE_HIDDEN; 209 extern bfd_boolean _bfd_bool_bfd_ptr_true 210 (bfd *, void *) ATTRIBUTE_HIDDEN; 211 extern void *_bfd_ptr_bfd_null_error 212 (bfd *) ATTRIBUTE_HIDDEN; 213 extern int _bfd_int_bfd_0 214 (bfd *) ATTRIBUTE_HIDDEN; 215 extern unsigned int _bfd_uint_bfd_0 216 (bfd *) ATTRIBUTE_HIDDEN; 217 extern long _bfd_long_bfd_0 218 (bfd *) ATTRIBUTE_HIDDEN; 219 extern long _bfd_long_bfd_n1_error 220 (bfd *) ATTRIBUTE_HIDDEN; 221 extern void _bfd_void_bfd 222 (bfd *) ATTRIBUTE_HIDDEN; 223 extern void _bfd_void_bfd_link 224 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN; 225 extern void _bfd_void_bfd_asection 226 (bfd *, asection *) ATTRIBUTE_HIDDEN; 227 228 extern bfd *_bfd_new_bfd_contained_in 229 (bfd *) ATTRIBUTE_HIDDEN; 230 extern bfd_cleanup _bfd_dummy_target 231 (bfd *) ATTRIBUTE_HIDDEN; 232 #define _bfd_no_cleanup _bfd_void_bfd 233 234 extern void bfd_dont_truncate_arname 235 (bfd *, const char *, char *) ATTRIBUTE_HIDDEN; 236 extern void bfd_bsd_truncate_arname 237 (bfd *, const char *, char *) ATTRIBUTE_HIDDEN; 238 extern void bfd_gnu_truncate_arname 239 (bfd *, const char *, char *) ATTRIBUTE_HIDDEN; 240 241 extern bfd_boolean _bfd_bsd_write_armap 242 (bfd *, unsigned int, struct orl *, unsigned int, int) ATTRIBUTE_HIDDEN; 243 244 extern bfd_boolean _bfd_coff_write_armap 245 (bfd *, unsigned int, struct orl *, unsigned int, int) ATTRIBUTE_HIDDEN; 246 247 extern void *_bfd_generic_read_ar_hdr 248 (bfd *) ATTRIBUTE_HIDDEN; 249 extern void _bfd_ar_spacepad 250 (char *, size_t, const char *, long) ATTRIBUTE_HIDDEN; 251 extern bfd_boolean _bfd_ar_sizepad 252 (char *, size_t, bfd_size_type) ATTRIBUTE_HIDDEN; 253 254 extern void *_bfd_generic_read_ar_hdr_mag 255 (bfd *, const char *) ATTRIBUTE_HIDDEN; 256 257 extern bfd_boolean _bfd_generic_write_ar_hdr 258 (bfd *, bfd *) ATTRIBUTE_HIDDEN; 259 260 extern bfd_boolean _bfd_bsd44_write_ar_hdr 261 (bfd *, bfd *) ATTRIBUTE_HIDDEN; 262 263 extern bfd * bfd_generic_openr_next_archived_file 264 (bfd *, bfd *) ATTRIBUTE_HIDDEN; 265 266 extern int bfd_generic_stat_arch_elt 267 (bfd *, struct stat *) ATTRIBUTE_HIDDEN; 268 269 #define _bfd_read_ar_hdr(abfd) \ 270 BFD_SEND (abfd, _bfd_read_ar_hdr_fn, (abfd)) 271 #define _bfd_write_ar_hdr(archive, abfd) \ 272 BFD_SEND (abfd, _bfd_write_ar_hdr_fn, (archive, abfd)) 273 274 /* Generic routines to use for BFD_JUMP_TABLE_GENERIC. Use 275 BFD_JUMP_TABLE_GENERIC (_bfd_generic). */ 276 277 #define _bfd_generic_close_and_cleanup _bfd_archive_close_and_cleanup 278 extern bfd_boolean _bfd_archive_close_and_cleanup 279 (bfd *) ATTRIBUTE_HIDDEN; 280 extern void _bfd_unlink_from_archive_parent (bfd *) ATTRIBUTE_HIDDEN; 281 #define _bfd_generic_bfd_free_cached_info _bfd_bool_bfd_true 282 extern bfd_boolean _bfd_generic_new_section_hook 283 (bfd *, asection *) ATTRIBUTE_HIDDEN; 284 extern bfd_boolean _bfd_generic_get_section_contents 285 (bfd *, asection *, void *, file_ptr, bfd_size_type) ATTRIBUTE_HIDDEN; 286 extern bfd_boolean _bfd_generic_get_section_contents_in_window 287 (bfd *, asection *, bfd_window *, file_ptr, bfd_size_type) ATTRIBUTE_HIDDEN; 288 289 /* Generic routines to use for BFD_JUMP_TABLE_COPY. Use 290 BFD_JUMP_TABLE_COPY (_bfd_generic). */ 291 292 #define _bfd_generic_bfd_copy_private_bfd_data _bfd_bool_bfd_bfd_true 293 #define _bfd_generic_bfd_merge_private_bfd_data \ 294 _bfd_bool_bfd_link_true 295 #define _bfd_generic_bfd_set_private_flags _bfd_bool_bfd_uint_true 296 #define _bfd_generic_bfd_copy_private_section_data \ 297 _bfd_bool_bfd_asection_bfd_asection_true 298 #define _bfd_generic_bfd_copy_private_symbol_data \ 299 _bfd_bool_bfd_asymbol_bfd_asymbol_true 300 #define _bfd_generic_bfd_copy_private_header_data _bfd_bool_bfd_bfd_true 301 #define _bfd_generic_bfd_print_private_bfd_data _bfd_bool_bfd_ptr_true 302 303 extern bfd_boolean _bfd_generic_init_private_section_data 304 (bfd *, asection *, bfd *, asection *, struct bfd_link_info *) 305 ATTRIBUTE_HIDDEN; 306 307 /* Routines to use for BFD_JUMP_TABLE_CORE when there is no core file 308 support. Use BFD_JUMP_TABLE_CORE (_bfd_nocore). */ 309 310 extern char *_bfd_nocore_core_file_failing_command 311 (bfd *) ATTRIBUTE_HIDDEN; 312 extern int _bfd_nocore_core_file_failing_signal 313 (bfd *) ATTRIBUTE_HIDDEN; 314 extern bfd_boolean _bfd_nocore_core_file_matches_executable_p 315 (bfd *, bfd *) ATTRIBUTE_HIDDEN; 316 extern int _bfd_nocore_core_file_pid 317 (bfd *) ATTRIBUTE_HIDDEN; 318 319 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE when there is no archive 320 file support. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive). */ 321 322 #define _bfd_noarchive_slurp_armap _bfd_bool_bfd_false_error 323 #define _bfd_noarchive_slurp_extended_name_table _bfd_bool_bfd_false_error 324 extern bfd_boolean _bfd_noarchive_construct_extended_name_table 325 (bfd *, char **, bfd_size_type *, const char **) ATTRIBUTE_HIDDEN; 326 extern void _bfd_noarchive_truncate_arname 327 (bfd *, const char *, char *) ATTRIBUTE_HIDDEN; 328 extern bfd_boolean _bfd_noarchive_write_armap 329 (bfd *, unsigned int, struct orl *, unsigned int, int) ATTRIBUTE_HIDDEN; 330 #define _bfd_noarchive_read_ar_hdr _bfd_ptr_bfd_null_error 331 extern bfd_boolean _bfd_noarchive_write_ar_hdr 332 (bfd *, bfd *) ATTRIBUTE_HIDDEN; 333 extern bfd * 334 _bfd_noarchive_openr_next_archived_file 335 (bfd *, bfd *) ATTRIBUTE_HIDDEN; 336 extern bfd * _bfd_noarchive_get_elt_at_index 337 (bfd *, symindex) ATTRIBUTE_HIDDEN; 338 #define _bfd_noarchive_generic_stat_arch_elt bfd_generic_stat_arch_elt 339 #define _bfd_noarchive_update_armap_timestamp _bfd_bool_bfd_false_error 340 341 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD style 342 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd). */ 343 344 #define _bfd_archive_bsd_slurp_armap bfd_slurp_bsd_armap 345 #define _bfd_archive_bsd_slurp_extended_name_table \ 346 _bfd_slurp_extended_name_table 347 extern bfd_boolean _bfd_archive_bsd_construct_extended_name_table 348 (bfd *, char **, bfd_size_type *, const char **) ATTRIBUTE_HIDDEN; 349 #define _bfd_archive_bsd_truncate_arname bfd_bsd_truncate_arname 350 #define _bfd_archive_bsd_write_armap _bfd_bsd_write_armap 351 #define _bfd_archive_bsd_read_ar_hdr _bfd_generic_read_ar_hdr 352 #define _bfd_archive_bsd_write_ar_hdr _bfd_generic_write_ar_hdr 353 #define _bfd_archive_bsd_openr_next_archived_file \ 354 bfd_generic_openr_next_archived_file 355 #define _bfd_archive_bsd_get_elt_at_index _bfd_generic_get_elt_at_index 356 #define _bfd_archive_bsd_generic_stat_arch_elt \ 357 bfd_generic_stat_arch_elt 358 extern bfd_boolean _bfd_archive_bsd_update_armap_timestamp 359 (bfd *) ATTRIBUTE_HIDDEN; 360 361 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get COFF style 362 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff). */ 363 364 #define _bfd_archive_coff_slurp_armap bfd_slurp_coff_armap 365 #define _bfd_archive_coff_slurp_extended_name_table \ 366 _bfd_slurp_extended_name_table 367 extern bfd_boolean _bfd_archive_coff_construct_extended_name_table 368 (bfd *, char **, bfd_size_type *, const char **) ATTRIBUTE_HIDDEN; 369 #define _bfd_archive_coff_truncate_arname bfd_dont_truncate_arname 370 #define _bfd_archive_coff_write_armap _bfd_coff_write_armap 371 #define _bfd_archive_coff_read_ar_hdr _bfd_generic_read_ar_hdr 372 #define _bfd_archive_coff_write_ar_hdr _bfd_generic_write_ar_hdr 373 #define _bfd_archive_coff_openr_next_archived_file \ 374 bfd_generic_openr_next_archived_file 375 #define _bfd_archive_coff_get_elt_at_index _bfd_generic_get_elt_at_index 376 #define _bfd_archive_coff_generic_stat_arch_elt \ 377 bfd_generic_stat_arch_elt 378 #define _bfd_archive_coff_update_armap_timestamp _bfd_bool_bfd_true 379 380 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get BSD4.4 style 381 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44). */ 382 383 #define _bfd_archive_bsd44_slurp_armap bfd_slurp_bsd_armap 384 #define _bfd_archive_bsd44_slurp_extended_name_table \ 385 _bfd_slurp_extended_name_table 386 extern bfd_boolean _bfd_archive_bsd44_construct_extended_name_table 387 (bfd *, char **, bfd_size_type *, const char **) ATTRIBUTE_HIDDEN; 388 #define _bfd_archive_bsd44_truncate_arname bfd_bsd_truncate_arname 389 #define _bfd_archive_bsd44_write_armap _bfd_bsd_write_armap 390 #define _bfd_archive_bsd44_read_ar_hdr _bfd_generic_read_ar_hdr 391 #define _bfd_archive_bsd44_write_ar_hdr _bfd_bsd44_write_ar_hdr 392 #define _bfd_archive_bsd44_openr_next_archived_file \ 393 bfd_generic_openr_next_archived_file 394 #define _bfd_archive_bsd44_get_elt_at_index _bfd_generic_get_elt_at_index 395 #define _bfd_archive_bsd44_generic_stat_arch_elt \ 396 bfd_generic_stat_arch_elt 397 #define _bfd_archive_bsd44_update_armap_timestamp \ 398 _bfd_archive_bsd_update_armap_timestamp 399 400 /* Routines to use for BFD_JUMP_TABLE_ARCHIVE to get VMS style 401 archives. Use BFD_JUMP_TABLE_ARCHIVE (_bfd_vms_lib). Some of them 402 are irrelevant. */ 403 404 extern bfd_boolean _bfd_vms_lib_write_archive_contents 405 (bfd *) ATTRIBUTE_HIDDEN; 406 #define _bfd_vms_lib_slurp_armap _bfd_noarchive_slurp_armap 407 #define _bfd_vms_lib_slurp_extended_name_table \ 408 _bfd_noarchive_slurp_extended_name_table 409 #define _bfd_vms_lib_construct_extended_name_table \ 410 _bfd_noarchive_construct_extended_name_table 411 #define _bfd_vms_lib_truncate_arname _bfd_noarchive_truncate_arname 412 #define _bfd_vms_lib_write_armap _bfd_noarchive_write_armap 413 #define _bfd_vms_lib_read_ar_hdr _bfd_noarchive_read_ar_hdr 414 #define _bfd_vms_lib_write_ar_hdr _bfd_noarchive_write_ar_hdr 415 extern bfd *_bfd_vms_lib_openr_next_archived_file 416 (bfd *, bfd *) ATTRIBUTE_HIDDEN; 417 extern bfd *_bfd_vms_lib_get_elt_at_index 418 (bfd *, symindex) ATTRIBUTE_HIDDEN; 419 extern int _bfd_vms_lib_generic_stat_arch_elt 420 (bfd *, struct stat *) ATTRIBUTE_HIDDEN; 421 #define _bfd_vms_lib_update_armap_timestamp _bfd_bool_bfd_true 422 423 /* Extra routines for VMS style archives. */ 424 425 extern symindex _bfd_vms_lib_find_symbol 426 (bfd *, const char *) ATTRIBUTE_HIDDEN; 427 extern bfd *_bfd_vms_lib_get_imagelib_file 428 (bfd *) ATTRIBUTE_HIDDEN; 429 extern bfd_cleanup _bfd_vms_lib_alpha_archive_p 430 (bfd *) ATTRIBUTE_HIDDEN; 431 extern bfd_cleanup _bfd_vms_lib_ia64_archive_p 432 (bfd *) ATTRIBUTE_HIDDEN; 433 extern bfd_boolean _bfd_vms_lib_alpha_mkarchive 434 (bfd *) ATTRIBUTE_HIDDEN; 435 extern bfd_boolean _bfd_vms_lib_ia64_mkarchive 436 (bfd *) ATTRIBUTE_HIDDEN; 437 438 /* Routines to use for BFD_JUMP_TABLE_SYMBOLS where there is no symbol 439 support. Use BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols). */ 440 441 #define _bfd_nosymbols_get_symtab_upper_bound _bfd_long_bfd_n1_error 442 extern long _bfd_nosymbols_canonicalize_symtab 443 (bfd *, asymbol **) ATTRIBUTE_HIDDEN; 444 #define _bfd_nosymbols_make_empty_symbol _bfd_generic_make_empty_symbol 445 extern void _bfd_nosymbols_print_symbol 446 (bfd *, void *, asymbol *, bfd_print_symbol_type) ATTRIBUTE_HIDDEN; 447 extern void _bfd_nosymbols_get_symbol_info 448 (bfd *, asymbol *, symbol_info *) ATTRIBUTE_HIDDEN; 449 extern const char * _bfd_nosymbols_get_symbol_version_string 450 (bfd *, asymbol *, bfd_boolean, bfd_boolean *) ATTRIBUTE_HIDDEN; 451 extern bfd_boolean _bfd_nosymbols_bfd_is_local_label_name 452 (bfd *, const char *) ATTRIBUTE_HIDDEN; 453 #define _bfd_nosymbols_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false 454 extern alent *_bfd_nosymbols_get_lineno 455 (bfd *, asymbol *) ATTRIBUTE_HIDDEN; 456 extern bfd_boolean _bfd_nosymbols_find_nearest_line 457 (bfd *, asymbol **, asection *, bfd_vma, 458 const char **, const char **, unsigned int *, unsigned int *) 459 ATTRIBUTE_HIDDEN; 460 extern bfd_boolean _bfd_nosymbols_find_line 461 (bfd *, asymbol **, asymbol *, const char **, unsigned int *) 462 ATTRIBUTE_HIDDEN; 463 extern bfd_boolean _bfd_nosymbols_find_inliner_info 464 (bfd *, const char **, const char **, unsigned int *) ATTRIBUTE_HIDDEN; 465 extern asymbol *_bfd_nosymbols_bfd_make_debug_symbol 466 (bfd *, void *, unsigned long) ATTRIBUTE_HIDDEN; 467 extern long _bfd_nosymbols_read_minisymbols 468 (bfd *, bfd_boolean, void **, unsigned int *) ATTRIBUTE_HIDDEN; 469 extern asymbol *_bfd_nosymbols_minisymbol_to_symbol 470 (bfd *, bfd_boolean, const void *, asymbol *) ATTRIBUTE_HIDDEN; 471 472 /* Routines to use for BFD_JUMP_TABLE_RELOCS when there is no reloc 473 support. Use BFD_JUMP_TABLE_RELOCS (_bfd_norelocs). */ 474 475 extern long _bfd_norelocs_get_reloc_upper_bound 476 (bfd *, asection *) ATTRIBUTE_HIDDEN; 477 extern long _bfd_norelocs_canonicalize_reloc 478 (bfd *, asection *, arelent **, asymbol **) ATTRIBUTE_HIDDEN; 479 extern void _bfd_norelocs_set_reloc 480 (bfd *, asection *, arelent **, unsigned int) ATTRIBUTE_HIDDEN; 481 extern reloc_howto_type *_bfd_norelocs_bfd_reloc_type_lookup 482 (bfd *, bfd_reloc_code_real_type) ATTRIBUTE_HIDDEN; 483 extern reloc_howto_type *_bfd_norelocs_bfd_reloc_name_lookup 484 (bfd *, const char *) ATTRIBUTE_HIDDEN; 485 486 /* Routines to use for BFD_JUMP_TABLE_WRITE for targets which may not 487 be written. Use BFD_JUMP_TABLE_WRITE (_bfd_nowrite). */ 488 489 extern bfd_boolean _bfd_nowrite_set_arch_mach 490 (bfd *, enum bfd_architecture, unsigned long) ATTRIBUTE_HIDDEN; 491 extern bfd_boolean _bfd_nowrite_set_section_contents 492 (bfd *, asection *, const void *, file_ptr, bfd_size_type) ATTRIBUTE_HIDDEN; 493 494 /* Generic routines to use for BFD_JUMP_TABLE_WRITE. Use 495 BFD_JUMP_TABLE_WRITE (_bfd_generic). */ 496 497 #define _bfd_generic_set_arch_mach bfd_default_set_arch_mach 498 extern bfd_boolean _bfd_generic_set_section_contents 499 (bfd *, asection *, const void *, file_ptr, bfd_size_type) ATTRIBUTE_HIDDEN; 500 501 /* Routines to use for BFD_JUMP_TABLE_LINK for targets which do not 502 support linking. Use BFD_JUMP_TABLE_LINK (_bfd_nolink). */ 503 504 extern int _bfd_nolink_sizeof_headers 505 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN; 506 extern bfd_byte *_bfd_nolink_bfd_get_relocated_section_contents 507 (bfd *, struct bfd_link_info *, struct bfd_link_order *, 508 bfd_byte *, bfd_boolean, asymbol **) ATTRIBUTE_HIDDEN; 509 extern bfd_boolean _bfd_nolink_bfd_relax_section 510 (bfd *, asection *, struct bfd_link_info *, bfd_boolean *) ATTRIBUTE_HIDDEN; 511 #define _bfd_nolink_bfd_gc_sections _bfd_bool_bfd_link_false_error 512 extern bfd_boolean _bfd_nolink_bfd_lookup_section_flags 513 (struct bfd_link_info *, struct flag_info *, asection *) ATTRIBUTE_HIDDEN; 514 #define _bfd_nolink_bfd_merge_sections _bfd_bool_bfd_link_false_error 515 extern bfd_boolean _bfd_nolink_bfd_is_group_section 516 (bfd *, const asection *) ATTRIBUTE_HIDDEN; 517 extern const char *_bfd_nolink_bfd_group_name 518 (bfd *, const asection *) ATTRIBUTE_HIDDEN; 519 extern bfd_boolean _bfd_nolink_bfd_discard_group 520 (bfd *, asection *) ATTRIBUTE_HIDDEN; 521 extern struct bfd_link_hash_table *_bfd_nolink_bfd_link_hash_table_create 522 (bfd *) ATTRIBUTE_HIDDEN; 523 #define _bfd_nolink_bfd_link_add_symbols _bfd_bool_bfd_link_false_error 524 extern void _bfd_nolink_bfd_link_just_syms 525 (asection *, struct bfd_link_info *) ATTRIBUTE_HIDDEN; 526 extern void _bfd_nolink_bfd_copy_link_hash_symbol_type 527 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *) 528 ATTRIBUTE_HIDDEN; 529 #define _bfd_nolink_bfd_final_link _bfd_bool_bfd_link_false_error 530 extern bfd_boolean _bfd_nolink_bfd_link_split_section 531 (bfd *, struct bfd_section *) ATTRIBUTE_HIDDEN; 532 extern bfd_boolean _bfd_nolink_section_already_linked 533 (bfd *, asection *, struct bfd_link_info *) ATTRIBUTE_HIDDEN; 534 extern bfd_boolean _bfd_nolink_bfd_define_common_symbol 535 (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *) 536 ATTRIBUTE_HIDDEN; 537 #define _bfd_nolink_bfd_link_hide_symbol \ 538 _bfd_generic_link_hide_symbol 539 extern struct bfd_link_hash_entry *_bfd_nolink_bfd_define_start_stop 540 (struct bfd_link_info *, const char *, asection *) ATTRIBUTE_HIDDEN; 541 #define _bfd_nolink_bfd_link_check_relocs \ 542 _bfd_generic_link_check_relocs 543 544 /* Routines to use for BFD_JUMP_TABLE_DYNAMIC for targets which do not 545 have dynamic symbols or relocs. Use BFD_JUMP_TABLE_DYNAMIC 546 (_bfd_nodynamic). */ 547 548 #define _bfd_nodynamic_get_dynamic_symtab_upper_bound _bfd_long_bfd_n1_error 549 #define _bfd_nodynamic_canonicalize_dynamic_symtab \ 550 _bfd_nosymbols_canonicalize_symtab 551 extern long _bfd_nodynamic_get_synthetic_symtab 552 (bfd *, long, asymbol **, long, asymbol **, asymbol **) ATTRIBUTE_HIDDEN; 553 #define _bfd_nodynamic_get_dynamic_reloc_upper_bound _bfd_long_bfd_n1_error 554 extern long _bfd_nodynamic_canonicalize_dynamic_reloc 555 (bfd *, arelent **, asymbol **) ATTRIBUTE_HIDDEN; 556 557 /* Generic routine to determine of the given symbol is a local 558 label. */ 559 extern bfd_boolean bfd_generic_is_local_label_name 560 (bfd *, const char *) ATTRIBUTE_HIDDEN; 561 562 /* Generic minisymbol routines. */ 563 extern long _bfd_generic_read_minisymbols 564 (bfd *, bfd_boolean, void **, unsigned int *) ATTRIBUTE_HIDDEN; 565 extern asymbol *_bfd_generic_minisymbol_to_symbol 566 (bfd *, bfd_boolean, const void *, asymbol *) ATTRIBUTE_HIDDEN; 567 568 /* Find the nearest line using .stab/.stabstr sections. */ 569 extern bfd_boolean _bfd_stab_section_find_nearest_line 570 (bfd *, asymbol **, asection *, bfd_vma, bfd_boolean *, 571 const char **, const char **, unsigned int *, void **) ATTRIBUTE_HIDDEN; 572 573 /* Find the nearest line using DWARF 1 debugging information. */ 574 extern bfd_boolean _bfd_dwarf1_find_nearest_line 575 (bfd *, asymbol **, asection *, bfd_vma, 576 const char **, const char **, unsigned int *) ATTRIBUTE_HIDDEN; 577 578 struct dwarf_debug_section 579 { 580 const char * uncompressed_name; 581 const char * compressed_name; 582 }; 583 584 /* Map of uncompressed DWARF debug section name to compressed one. It 585 is terminated by NULL uncompressed_name. */ 586 587 extern const struct dwarf_debug_section dwarf_debug_sections[] ATTRIBUTE_HIDDEN; 588 589 /* Find the nearest line using DWARF 2 debugging information. */ 590 extern int _bfd_dwarf2_find_nearest_line 591 (bfd *, asymbol **, asymbol *, asection *, bfd_vma, 592 const char **, const char **, unsigned int *, unsigned int *, 593 const struct dwarf_debug_section *, void **) ATTRIBUTE_HIDDEN; 594 595 /* Find the bias between DWARF addresses and real addresses. */ 596 extern bfd_signed_vma _bfd_dwarf2_find_symbol_bias 597 (asymbol **, void **) ATTRIBUTE_HIDDEN; 598 599 /* Find inliner info after calling bfd_find_nearest_line. */ 600 extern bfd_boolean _bfd_dwarf2_find_inliner_info 601 (bfd *, const char **, const char **, unsigned int *, void **) 602 ATTRIBUTE_HIDDEN; 603 604 /* Read DWARF 2 debugging information. */ 605 extern bfd_boolean _bfd_dwarf2_slurp_debug_info 606 (bfd *, bfd *, const struct dwarf_debug_section *, asymbol **, void **, 607 bfd_boolean) ATTRIBUTE_HIDDEN; 608 609 /* Clean up the data used to handle DWARF 2 debugging information. */ 610 extern void _bfd_dwarf2_cleanup_debug_info 611 (bfd *, void **) ATTRIBUTE_HIDDEN; 612 613 /* Create a new section entry. */ 614 extern struct bfd_hash_entry *bfd_section_hash_newfunc 615 (struct bfd_hash_entry *, struct bfd_hash_table *, const char *) 616 ATTRIBUTE_HIDDEN; 617 618 /* A routine to create entries for a bfd_link_hash_table. */ 619 extern struct bfd_hash_entry *_bfd_link_hash_newfunc 620 (struct bfd_hash_entry *entry, struct bfd_hash_table *table, 621 const char *string) ATTRIBUTE_HIDDEN; 622 623 /* Initialize a bfd_link_hash_table. */ 624 extern bfd_boolean _bfd_link_hash_table_init 625 (struct bfd_link_hash_table *, bfd *, 626 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 627 struct bfd_hash_table *, 628 const char *), 629 unsigned int) ATTRIBUTE_HIDDEN; 630 631 /* Generic link hash table creation routine. */ 632 extern struct bfd_link_hash_table *_bfd_generic_link_hash_table_create 633 (bfd *) ATTRIBUTE_HIDDEN; 634 635 /* Generic link hash table destruction routine. */ 636 extern void _bfd_generic_link_hash_table_free 637 (bfd *) ATTRIBUTE_HIDDEN; 638 639 /* Generic add symbol routine. */ 640 extern bfd_boolean _bfd_generic_link_add_symbols 641 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN; 642 643 /* Generic archive add symbol routine. */ 644 extern bfd_boolean _bfd_generic_link_add_archive_symbols 645 (bfd *, struct bfd_link_info *, 646 bfd_boolean (*) (bfd *, struct bfd_link_info *, 647 struct bfd_link_hash_entry *, const char *, 648 bfd_boolean *)) ATTRIBUTE_HIDDEN; 649 650 /* Forward declaration to avoid prototype errors. */ 651 typedef struct bfd_link_hash_entry _bfd_link_hash_entry; 652 653 /* Generic routine to add a single symbol. */ 654 extern bfd_boolean _bfd_generic_link_add_one_symbol 655 (struct bfd_link_info *, bfd *, const char *name, flagword, 656 asection *, bfd_vma, const char *, bfd_boolean copy, 657 bfd_boolean constructor, struct bfd_link_hash_entry **) ATTRIBUTE_HIDDEN; 658 659 /* Generic routine to mark section as supplying symbols only. */ 660 extern void _bfd_generic_link_just_syms 661 (asection *, struct bfd_link_info *) ATTRIBUTE_HIDDEN; 662 663 /* Generic routine that does nothing. */ 664 extern void _bfd_generic_copy_link_hash_symbol_type 665 (bfd *, struct bfd_link_hash_entry *, struct bfd_link_hash_entry *) 666 ATTRIBUTE_HIDDEN; 667 668 /* Generic link routine. */ 669 extern bfd_boolean _bfd_generic_final_link 670 (bfd *, struct bfd_link_info *) ATTRIBUTE_HIDDEN; 671 672 extern bfd_boolean _bfd_generic_link_split_section 673 (bfd *, struct bfd_section *) ATTRIBUTE_HIDDEN; 674 675 extern bfd_boolean _bfd_generic_section_already_linked 676 (bfd *, asection *, struct bfd_link_info *) ATTRIBUTE_HIDDEN; 677 678 /* Generic reloc_link_order processing routine. */ 679 extern bfd_boolean _bfd_generic_reloc_link_order 680 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *) 681 ATTRIBUTE_HIDDEN; 682 683 /* Default link order processing routine. */ 684 extern bfd_boolean _bfd_default_link_order 685 (bfd *, struct bfd_link_info *, asection *, struct bfd_link_order *) 686 ATTRIBUTE_HIDDEN; 687 688 /* Count the number of reloc entries in a link order list. */ 689 extern unsigned int _bfd_count_link_order_relocs 690 (struct bfd_link_order *) ATTRIBUTE_HIDDEN; 691 692 /* Final link relocation routine. */ 693 extern bfd_reloc_status_type _bfd_final_link_relocate 694 (reloc_howto_type *, bfd *, asection *, bfd_byte *, 695 bfd_vma, bfd_vma, bfd_vma) ATTRIBUTE_HIDDEN; 696 697 /* Relocate a particular location by a howto and a value. */ 698 extern bfd_reloc_status_type _bfd_relocate_contents 699 (reloc_howto_type *, bfd *, bfd_vma, bfd_byte *) ATTRIBUTE_HIDDEN; 700 701 /* Clear a given location using a given howto. */ 702 extern bfd_reloc_status_type _bfd_clear_contents 703 (reloc_howto_type *, bfd *, asection *, bfd_byte *, bfd_vma) ATTRIBUTE_HIDDEN; 704 705 /* Link stabs in sections in the first pass. */ 706 707 extern bfd_boolean _bfd_link_section_stabs 708 (bfd *, struct stab_info *, asection *, asection *, void **, 709 bfd_size_type *) ATTRIBUTE_HIDDEN; 710 711 /* Eliminate stabs for discarded functions and symbols. */ 712 extern bfd_boolean _bfd_discard_section_stabs 713 (bfd *, asection *, void *, bfd_boolean (*) (bfd_vma, void *), void *) 714 ATTRIBUTE_HIDDEN; 715 716 /* Write out the .stab section when linking stabs in sections. */ 717 718 extern bfd_boolean _bfd_write_section_stabs 719 (bfd *, struct stab_info *, asection *, void **, bfd_byte *) 720 ATTRIBUTE_HIDDEN; 721 722 /* Write out the .stabstr string table when linking stabs in sections. */ 723 724 extern bfd_boolean _bfd_write_stab_strings 725 (bfd *, struct stab_info *) ATTRIBUTE_HIDDEN; 726 727 /* Find an offset within a .stab section when linking stabs in 728 sections. */ 729 730 extern bfd_vma _bfd_stab_section_offset 731 (asection *, void *, bfd_vma) ATTRIBUTE_HIDDEN; 732 733 /* Register a SEC_MERGE section as a candidate for merging. */ 734 735 extern bfd_boolean _bfd_add_merge_section 736 (bfd *, void **, asection *, void **) ATTRIBUTE_HIDDEN; 737 738 /* Attempt to merge SEC_MERGE sections. */ 739 740 extern bfd_boolean _bfd_merge_sections 741 (bfd *, struct bfd_link_info *, void *, void (*) (bfd *, asection *)) 742 ATTRIBUTE_HIDDEN; 743 744 /* Write out a merged section. */ 745 746 extern bfd_boolean _bfd_write_merged_section 747 (bfd *, asection *, void *) ATTRIBUTE_HIDDEN; 748 749 /* Find an offset within a modified SEC_MERGE section. */ 750 751 extern bfd_vma _bfd_merged_section_offset 752 (bfd *, asection **, void *, bfd_vma) ATTRIBUTE_HIDDEN; 753 754 /* Tidy up when done. */ 755 756 extern void _bfd_merge_sections_free (void *) ATTRIBUTE_HIDDEN; 757 758 /* Create a string table. */ 759 extern struct bfd_strtab_hash *_bfd_stringtab_init 760 (void) ATTRIBUTE_HIDDEN; 761 762 /* Create an XCOFF .debug section style string table. */ 763 extern struct bfd_strtab_hash *_bfd_xcoff_stringtab_init 764 (void) ATTRIBUTE_HIDDEN; 765 766 /* Free a string table. */ 767 extern void _bfd_stringtab_free 768 (struct bfd_strtab_hash *) ATTRIBUTE_HIDDEN; 769 770 /* Get the size of a string table. */ 771 extern bfd_size_type _bfd_stringtab_size 772 (struct bfd_strtab_hash *) ATTRIBUTE_HIDDEN; 773 774 /* Add a string to a string table. */ 775 extern bfd_size_type _bfd_stringtab_add 776 (struct bfd_strtab_hash *, const char *, bfd_boolean hash, bfd_boolean copy) 777 ATTRIBUTE_HIDDEN; 778 779 /* Write out a string table. */ 780 extern bfd_boolean _bfd_stringtab_emit 781 (bfd *, struct bfd_strtab_hash *) ATTRIBUTE_HIDDEN; 782 783 /* Macros to tell if bfds are read or write enabled. 784 785 Note that bfds open for read may be scribbled into if the fd passed 786 to bfd_fdopenr is actually open both for read and write 787 simultaneously. However an output bfd will never be open for 788 read. Therefore sometimes you want to check bfd_read_p or 789 !bfd_read_p, and only sometimes bfd_write_p. 790 */ 791 792 #define bfd_read_p(abfd) \ 793 ((abfd)->direction == read_direction || (abfd)->direction == both_direction) 794 #define bfd_write_p(abfd) \ 795 ((abfd)->direction == write_direction || (abfd)->direction == both_direction) 796 797 extern void bfd_assert 798 (const char*,int) ATTRIBUTE_HIDDEN; 799 800 #define BFD_ASSERT(x) \ 801 do { if (!(x)) bfd_assert(__FILE__,__LINE__); } while (0) 802 803 #define BFD_FAIL() \ 804 do { bfd_assert(__FILE__,__LINE__); } while (0) 805 806 extern void _bfd_abort 807 (const char *, int, const char *) ATTRIBUTE_NORETURN ATTRIBUTE_HIDDEN; 808 809 /* if gcc >= 2.6, we can give a function name, too */ 810 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) 811 #define __PRETTY_FUNCTION__ ((char *) NULL) 812 #endif 813 814 #undef abort 815 #define abort() _bfd_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__) 816 817 /* Manipulate a system FILE but using BFD's "file_ptr", rather than 818 the system "off_t" or "off64_t", as the offset. */ 819 extern file_ptr _bfd_real_ftell 820 (FILE *) ATTRIBUTE_HIDDEN; 821 extern int _bfd_real_fseek 822 (FILE *, file_ptr, int) ATTRIBUTE_HIDDEN; 823 extern FILE *_bfd_real_fopen 824 (const char *, const char *) ATTRIBUTE_HIDDEN; 825 826 /* List of supported target vectors, and the default vector (if 827 bfd_default_vector[0] is NULL, there is no default). */ 828 extern const bfd_target * const *bfd_target_vector ATTRIBUTE_HIDDEN; 829 extern const bfd_target *bfd_default_vector[] ATTRIBUTE_HIDDEN; 830 831 /* List of associated target vectors. */ 832 extern const bfd_target * const *bfd_associated_vector ATTRIBUTE_HIDDEN; 833 834 /* Functions shared by the ECOFF and MIPS ELF backends, which have no 835 other common header files. */ 836 837 #if defined(__STDC__) || defined(ALMOST_STDC) 838 struct ecoff_find_line; 839 #endif 840 841 extern bfd_boolean _bfd_ecoff_locate_line 842 (bfd *, asection *, bfd_vma, struct ecoff_debug_info * const, 843 const struct ecoff_debug_swap * const, struct ecoff_find_line *, 844 const char **, const char **, unsigned int *) ATTRIBUTE_HIDDEN; 845 extern bfd_boolean _bfd_ecoff_get_accumulated_pdr 846 (void *, bfd_byte *) ATTRIBUTE_HIDDEN; 847 extern bfd_boolean _bfd_ecoff_get_accumulated_sym 848 (void *, bfd_byte *) ATTRIBUTE_HIDDEN; 849 extern bfd_boolean _bfd_ecoff_get_accumulated_ss 850 (void *, bfd_byte *) ATTRIBUTE_HIDDEN; 851 852 extern bfd_vma _bfd_get_gp_value 853 (bfd *) ATTRIBUTE_HIDDEN; 854 extern void _bfd_set_gp_value 855 (bfd *, bfd_vma) ATTRIBUTE_HIDDEN; 856 857 /* Function shared by the COFF and ELF SH backends, which have no 858 other common header files. */ 859 860 #ifndef _bfd_sh_align_load_span 861 extern bfd_boolean _bfd_sh_align_load_span 862 (bfd *, asection *, bfd_byte *, 863 bfd_boolean (*) (bfd *, asection *, void *, bfd_byte *, bfd_vma), 864 void *, bfd_vma **, bfd_vma *, bfd_vma, bfd_vma, bfd_boolean *) ATTRIBUTE_HIDDEN; 865 #endif 866 867 /* This is the shape of the elements inside the already_linked hash 868 table. It maps a name onto a list of already_linked elements with 869 the same name. */ 870 871 struct bfd_section_already_linked_hash_entry 872 { 873 struct bfd_hash_entry root; 874 struct bfd_section_already_linked *entry; 875 }; 876 877 struct bfd_section_already_linked 878 { 879 struct bfd_section_already_linked *next; 880 asection *sec; 881 }; 882 883 extern struct bfd_section_already_linked_hash_entry * 884 bfd_section_already_linked_table_lookup (const char *) ATTRIBUTE_HIDDEN; 885 extern bfd_boolean bfd_section_already_linked_table_insert 886 (struct bfd_section_already_linked_hash_entry *, asection *) 887 ATTRIBUTE_HIDDEN; 888 extern void bfd_section_already_linked_table_traverse 889 (bfd_boolean (*) (struct bfd_section_already_linked_hash_entry *, 890 void *), void *) ATTRIBUTE_HIDDEN; 891 892 extern bfd_vma _bfd_read_unsigned_leb128 893 (bfd *, bfd_byte *, unsigned int *) ATTRIBUTE_HIDDEN; 894 extern bfd_signed_vma _bfd_read_signed_leb128 895 (bfd *, bfd_byte *, unsigned int *) ATTRIBUTE_HIDDEN; 896 extern bfd_vma _bfd_safe_read_leb128 897 (bfd *, bfd_byte *, unsigned int *, bfd_boolean, const bfd_byte * const) 898 ATTRIBUTE_HIDDEN; 899 extern bfd_byte * _bfd_write_unsigned_leb128 900 (bfd_byte *, bfd_byte *, bfd_vma) ATTRIBUTE_HIDDEN; 901 902 #if GCC_VERSION >= 7000 903 #define _bfd_mul_overflow(a, b, res) __builtin_mul_overflow (a, b, res) 904 #else 905 /* Assumes unsigned values. Careful! Args evaluated multiple times. */ 906 #define _bfd_mul_overflow(a, b, res) \ 907 ((*res) = (a), (*res) *= (b), (b) != 0 && (*res) / (b) != (a)) 908 #endif 909 910 #ifdef __GNUC__ 911 #define _bfd_constant_p(v) __builtin_constant_p (v) 912 #else 913 #define _bfd_constant_p(v) 0 914 #endif 915 916 static inline bfd_byte * 917 _bfd_alloc_and_read (bfd *abfd, bfd_size_type asize, bfd_size_type rsize) 918 { 919 bfd_byte *mem; 920 if (!_bfd_constant_p (rsize)) 921 { 922 ufile_ptr filesize = bfd_get_file_size (abfd); 923 if (filesize != 0 && rsize > filesize) 924 { 925 bfd_set_error (bfd_error_file_truncated); 926 return NULL; 927 } 928 } 929 mem = bfd_alloc (abfd, asize); 930 if (mem != NULL) 931 { 932 if (bfd_bread (mem, rsize, abfd) == rsize) 933 return mem; 934 bfd_release (abfd, mem); 935 } 936 return NULL; 937 } 938 939 static inline bfd_byte * 940 _bfd_malloc_and_read (bfd *abfd, bfd_size_type asize, bfd_size_type rsize) 941 { 942 bfd_byte *mem; 943 if (!_bfd_constant_p (rsize)) 944 { 945 ufile_ptr filesize = bfd_get_file_size (abfd); 946 if (filesize != 0 && rsize > filesize) 947 { 948 bfd_set_error (bfd_error_file_truncated); 949 return NULL; 950 } 951 } 952 mem = bfd_malloc (asize); 953 if (mem != NULL) 954 { 955 if (bfd_bread (mem, rsize, abfd) == rsize) 956 return mem; 957 free (mem); 958 } 959 return NULL; 960 } 961