elf-bfd.h revision 33965
1/* BFD back-end data structures for ELF files. 2 Copyright (C) 1992, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. 3 Written by Cygnus Support. 4 5This file is part of BFD, the Binary File Descriptor library. 6 7This program is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2 of the License, or 10(at your option) any later version. 11 12This program is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with this program; if not, write to the Free Software 19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 20 21#ifndef _LIBELF_H_ 22#define _LIBELF_H_ 1 23 24#include "elf/common.h" 25#include "elf/internal.h" 26#include "elf/external.h" 27#include "bfdlink.h" 28 29/* If size isn't specified as 64 or 32, NAME macro should fail. */ 30#ifndef NAME 31#if ARCH_SIZE==64 32#define NAME(x,y) CAT4(x,64,_,y) 33#endif 34#if ARCH_SIZE==32 35#define NAME(x,y) CAT4(x,32,_,y) 36#endif 37#endif 38 39#ifndef NAME 40#define NAME(x,y) CAT4(x,NOSIZE,_,y) 41#endif 42 43#define ElfNAME(X) NAME(Elf,X) 44#define elfNAME(X) NAME(elf,X) 45 46/* Information held for an ELF symbol. The first field is the 47 corresponding asymbol. Every symbol is an ELF file is actually a 48 pointer to this structure, although it is often handled as a 49 pointer to an asymbol. */ 50 51typedef struct 52{ 53 /* The BFD symbol. */ 54 asymbol symbol; 55 /* ELF symbol information. */ 56 Elf_Internal_Sym internal_elf_sym; 57 /* Backend specific information. */ 58 union 59 { 60 unsigned int hppa_arg_reloc; 61 PTR mips_extr; 62 PTR any; 63 } 64 tc_data; 65 66 /* Version information. This is from an Elf_Internal_Versym 67 structure in a SHT_GNU_versym section. It is zero if there is no 68 version information. */ 69 unsigned short version; 70 71} elf_symbol_type; 72 73/* ELF linker hash table entries. */ 74 75struct elf_link_hash_entry 76{ 77 struct bfd_link_hash_entry root; 78 79 /* Symbol index in output file. This is initialized to -1. It is 80 set to -2 if the symbol is used by a reloc. */ 81 long indx; 82 83 /* Symbol size. */ 84 bfd_size_type size; 85 86 /* Symbol index as a dynamic symbol. Initialized to -1, and remains 87 -1 if this is not a dynamic symbol. */ 88 long dynindx; 89 90 /* String table index in .dynstr if this is a dynamic symbol. */ 91 unsigned long dynstr_index; 92 93 /* If this is a weak defined symbol from a dynamic object, this 94 field points to a defined symbol with the same value, if there is 95 one. Otherwise it is NULL. */ 96 struct elf_link_hash_entry *weakdef; 97 98 /* If this symbol requires an entry in the global offset table, the 99 processor specific backend uses this field to hold the offset 100 into the .got section. If this field is -1, then the symbol does 101 not require a global offset table entry. */ 102 bfd_vma got_offset; 103 104 /* If this symbol requires an entry in the procedure linkage table, 105 the processor specific backend uses these two fields to hold the 106 offset into the procedure linkage section and the offset into the 107 .got section. If plt_offset is -1, then the symbol does not 108 require an entry in the procedure linkage table. */ 109 bfd_vma plt_offset; 110 111 /* If this symbol is used in the linker created sections, the processor 112 specific backend uses this field to map the field into the offset 113 from the beginning of the section. */ 114 struct elf_linker_section_pointers *linker_section_pointer; 115 116 /* Version information. */ 117 union 118 { 119 /* This field is used for a symbol which is not defined in a 120 regular object. It points to the version information read in 121 from the dynamic object. */ 122 Elf_Internal_Verdef *verdef; 123 /* This field is used for a symbol which is defined in a regular 124 object. It is set up in size_dynamic_sections. It points to 125 the version information we should write out for this symbol. */ 126 struct bfd_elf_version_tree *vertree; 127 } verinfo; 128 129 /* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */ 130 char type; 131 132 /* Symbol st_other value. */ 133 unsigned char other; 134 135 /* Some flags; legal values follow. */ 136 unsigned short elf_link_hash_flags; 137 /* Symbol is referenced by a non-shared object. */ 138#define ELF_LINK_HASH_REF_REGULAR 01 139 /* Symbol is defined by a non-shared object. */ 140#define ELF_LINK_HASH_DEF_REGULAR 02 141 /* Symbol is referenced by a shared object. */ 142#define ELF_LINK_HASH_REF_DYNAMIC 04 143 /* Symbol is defined by a shared object. */ 144#define ELF_LINK_HASH_DEF_DYNAMIC 010 145 /* Dynamic symbol has been adjustd. */ 146#define ELF_LINK_HASH_DYNAMIC_ADJUSTED 020 147 /* Symbol needs a copy reloc. */ 148#define ELF_LINK_HASH_NEEDS_COPY 040 149 /* Symbol needs a procedure linkage table entry. */ 150#define ELF_LINK_HASH_NEEDS_PLT 0100 151 /* Symbol appears in a non-ELF input file. */ 152#define ELF_LINK_NON_ELF 0200 153 /* Symbol should be marked as hidden in the version information. */ 154#define ELF_LINK_HIDDEN 0400 155 /* Symbol was forced to local scope due to a version script file. */ 156#define ELF_LINK_FORCED_LOCAL 01000 157}; 158 159/* ELF linker hash table. */ 160 161struct elf_link_hash_table 162{ 163 struct bfd_link_hash_table root; 164 /* Whether we have created the special dynamic sections required 165 when linking against or generating a shared object. */ 166 boolean dynamic_sections_created; 167 /* The BFD used to hold special sections created by the linker. 168 This will be the first BFD found which requires these sections to 169 be created. */ 170 bfd *dynobj; 171 /* The number of symbols found in the link which must be put into 172 the .dynsym section. */ 173 bfd_size_type dynsymcount; 174 /* The string table of dynamic symbols, which becomes the .dynstr 175 section. */ 176 struct bfd_strtab_hash *dynstr; 177 /* The number of buckets in the hash table in the .hash section. 178 This is based on the number of dynamic symbols. */ 179 bfd_size_type bucketcount; 180 /* A linked list of DT_NEEDED names found in dynamic objects 181 included in the link. */ 182 struct bfd_link_needed_list *needed; 183 /* The _GLOBAL_OFFSET_TABLE_ symbol. */ 184 struct elf_link_hash_entry *hgot; 185 /* A pointer to information used to link stabs in sections. */ 186 PTR stab_info; 187}; 188 189/* Look up an entry in an ELF linker hash table. */ 190 191#define elf_link_hash_lookup(table, string, create, copy, follow) \ 192 ((struct elf_link_hash_entry *) \ 193 bfd_link_hash_lookup (&(table)->root, (string), (create), \ 194 (copy), (follow))) 195 196/* Traverse an ELF linker hash table. */ 197 198#define elf_link_hash_traverse(table, func, info) \ 199 (bfd_link_hash_traverse \ 200 (&(table)->root, \ 201 (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \ 202 (info))) 203 204/* Get the ELF linker hash table from a link_info structure. */ 205 206#define elf_hash_table(p) ((struct elf_link_hash_table *) ((p)->hash)) 207 208/* Constant information held for an ELF backend. */ 209 210struct elf_size_info { 211 unsigned char sizeof_ehdr, sizeof_phdr, sizeof_shdr; 212 unsigned char sizeof_rel, sizeof_rela, sizeof_sym, sizeof_dyn, sizeof_note; 213 214 unsigned char arch_size, file_align; 215 unsigned char elfclass, ev_current; 216 int (*write_out_phdrs) PARAMS ((bfd *, const Elf_Internal_Phdr *, int)); 217 boolean (*write_shdrs_and_ehdr) PARAMS ((bfd *)); 218 void (*write_relocs) PARAMS ((bfd *, asection *, PTR)); 219 void (*swap_symbol_out) PARAMS ((bfd *, const Elf_Internal_Sym *, PTR)); 220 boolean (*slurp_reloc_table) 221 PARAMS ((bfd *, asection *, asymbol **, boolean)); 222 long (*slurp_symbol_table) PARAMS ((bfd *, asymbol **, boolean)); 223 void (*swap_dyn_in) PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *)); 224}; 225 226#define elf_symbol_from(ABFD,S) \ 227 (((S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \ 228 && (S)->the_bfd->tdata.elf_obj_data != 0) \ 229 ? (elf_symbol_type *) (S) \ 230 : 0) 231 232struct elf_backend_data 233{ 234 /* Whether the backend uses REL or RELA relocations. FIXME: some 235 ELF backends use both. When we need to support one, this whole 236 approach will need to be changed. */ 237 int use_rela_p; 238 239 /* The architecture for this backend. */ 240 enum bfd_architecture arch; 241 242 /* The ELF machine code (EM_xxxx) for this backend. */ 243 int elf_machine_code; 244 245 /* The maximum page size for this backend. */ 246 bfd_vma maxpagesize; 247 248 /* This is true if the linker should act like collect and gather 249 global constructors and destructors by name. This is true for 250 MIPS ELF because the Irix 5 tools can not handle the .init 251 section. */ 252 boolean collect; 253 254 /* This is true if the linker should ignore changes to the type of a 255 symbol. This is true for MIPS ELF because some Irix 5 objects 256 record undefined functions as STT_OBJECT although the definitions 257 are STT_FUNC. */ 258 boolean type_change_ok; 259 260 /* A function to translate an ELF RELA relocation to a BFD arelent 261 structure. */ 262 void (*elf_info_to_howto) PARAMS ((bfd *, arelent *, 263 Elf_Internal_Rela *)); 264 265 /* A function to translate an ELF REL relocation to a BFD arelent 266 structure. */ 267 void (*elf_info_to_howto_rel) PARAMS ((bfd *, arelent *, 268 Elf_Internal_Rel *)); 269 270 /* A function to determine whether a symbol is global when 271 partitioning the symbol table into local and global symbols. 272 This should be NULL for most targets, in which case the correct 273 thing will be done. MIPS ELF, at least on the Irix 5, has 274 special requirements. */ 275 boolean (*elf_backend_sym_is_global) PARAMS ((bfd *, asymbol *)); 276 277 /* The remaining functions are hooks which are called only if they 278 are not NULL. */ 279 280 /* A function to permit a backend specific check on whether a 281 particular BFD format is relevant for an object file, and to 282 permit the backend to set any global information it wishes. When 283 this is called elf_elfheader is set, but anything else should be 284 used with caution. If this returns false, the check_format 285 routine will return a bfd_error_wrong_format error. */ 286 boolean (*elf_backend_object_p) PARAMS ((bfd *)); 287 288 /* A function to do additional symbol processing when reading the 289 ELF symbol table. This is where any processor-specific special 290 section indices are handled. */ 291 void (*elf_backend_symbol_processing) PARAMS ((bfd *, asymbol *)); 292 293 /* A function to do additional symbol processing after reading the 294 entire ELF symbol table. */ 295 boolean (*elf_backend_symbol_table_processing) PARAMS ((bfd *, 296 elf_symbol_type *, 297 unsigned int)); 298 299 /* A function to do additional processing on the ELF section header 300 just before writing it out. This is used to set the flags and 301 type fields for some sections, or to actually write out data for 302 unusual sections. */ 303 boolean (*elf_backend_section_processing) PARAMS ((bfd *, 304 Elf32_Internal_Shdr *)); 305 306 /* A function to handle unusual section types when creating BFD 307 sections from ELF sections. */ 308 boolean (*elf_backend_section_from_shdr) PARAMS ((bfd *, 309 Elf32_Internal_Shdr *, 310 char *)); 311 312 /* A function to set up the ELF section header for a BFD section in 313 preparation for writing it out. This is where the flags and type 314 fields are set for unusual sections. */ 315 boolean (*elf_backend_fake_sections) PARAMS ((bfd *, Elf32_Internal_Shdr *, 316 asection *)); 317 318 /* A function to get the ELF section index for a BFD section. If 319 this returns true, the section was found. If it is a normal ELF 320 section, *RETVAL should be left unchanged. If it is not a normal 321 ELF section *RETVAL should be set to the SHN_xxxx index. */ 322 boolean (*elf_backend_section_from_bfd_section) 323 PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *, int *retval)); 324 325 /* If this field is not NULL, it is called by the add_symbols phase 326 of a link just before adding a symbol to the global linker hash 327 table. It may modify any of the fields as it wishes. If *NAME 328 is set to NULL, the symbol will be skipped rather than being 329 added to the hash table. This function is responsible for 330 handling all processor dependent symbol bindings and section 331 indices, and must set at least *FLAGS and *SEC for each processor 332 dependent case; failure to do so will cause a link error. */ 333 boolean (*elf_add_symbol_hook) 334 PARAMS ((bfd *abfd, struct bfd_link_info *info, 335 const Elf_Internal_Sym *, const char **name, 336 flagword *flags, asection **sec, bfd_vma *value)); 337 338 /* If this field is not NULL, it is called by the elf_link_output_sym 339 phase of a link for each symbol which will appear in the object file. */ 340 boolean (*elf_backend_link_output_symbol_hook) 341 PARAMS ((bfd *, struct bfd_link_info *info, const char *, 342 Elf_Internal_Sym *, asection *)); 343 344 /* The CREATE_DYNAMIC_SECTIONS function is called by the ELF backend 345 linker the first time it encounters a dynamic object in the link. 346 This function must create any sections required for dynamic 347 linking. The ABFD argument is a dynamic object. The .interp, 348 .dynamic, .dynsym, .dynstr, and .hash functions have already been 349 created, and this function may modify the section flags if 350 desired. This function will normally create the .got and .plt 351 sections, but different backends have different requirements. */ 352 boolean (*elf_backend_create_dynamic_sections) 353 PARAMS ((bfd *abfd, struct bfd_link_info *info)); 354 355 /* The CHECK_RELOCS function is called by the add_symbols phase of 356 the ELF backend linker. It is called once for each section with 357 relocs of an object file, just after the symbols for the object 358 file have been added to the global linker hash table. The 359 function must look through the relocs and do any special handling 360 required. This generally means allocating space in the global 361 offset table, and perhaps allocating space for a reloc. The 362 relocs are always passed as Rela structures; if the section 363 actually uses Rel structures, the r_addend field will always be 364 zero. */ 365 boolean (*check_relocs) 366 PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *o, 367 const Elf_Internal_Rela *relocs)); 368 369 /* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend 370 linker for every symbol which is defined by a dynamic object and 371 referenced by a regular object. This is called after all the 372 input files have been seen, but before the SIZE_DYNAMIC_SECTIONS 373 function has been called. The hash table entry should be 374 bfd_link_hash_defined ore bfd_link_hash_defweak, and it should be 375 defined in a section from a dynamic object. Dynamic object 376 sections are not included in the final link, and this function is 377 responsible for changing the value to something which the rest of 378 the link can deal with. This will normally involve adding an 379 entry to the .plt or .got or some such section, and setting the 380 symbol to point to that. */ 381 boolean (*elf_backend_adjust_dynamic_symbol) 382 PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *h)); 383 384 /* The ALWAYS_SIZE_SECTIONS function is called by the backend linker 385 after all the linker input files have been seen but before the 386 section sizes have been set. This is called after 387 ADJUST_DYNAMIC_SYMBOL, but before SIZE_DYNAMIC_SECTIONS. */ 388 boolean (*elf_backend_always_size_sections) 389 PARAMS ((bfd *output_bfd, struct bfd_link_info *info)); 390 391 /* The SIZE_DYNAMIC_SECTIONS function is called by the ELF backend 392 linker after all the linker input files have been seen but before 393 the sections sizes have been set. This is called after 394 ADJUST_DYNAMIC_SYMBOL has been called on all appropriate symbols. 395 It is only called when linking against a dynamic object. It must 396 set the sizes of the dynamic sections, and may fill in their 397 contents as well. The generic ELF linker can handle the .dynsym, 398 .dynstr and .hash sections. This function must handle the 399 .interp section and any sections created by the 400 CREATE_DYNAMIC_SECTIONS entry point. */ 401 boolean (*elf_backend_size_dynamic_sections) 402 PARAMS ((bfd *output_bfd, struct bfd_link_info *info)); 403 404 /* The RELOCATE_SECTION function is called by the ELF backend linker 405 to handle the relocations for a section. 406 407 The relocs are always passed as Rela structures; if the section 408 actually uses Rel structures, the r_addend field will always be 409 zero. 410 411 This function is responsible for adjust the section contents as 412 necessary, and (if using Rela relocs and generating a 413 relocateable output file) adjusting the reloc addend as 414 necessary. 415 416 This function does not have to worry about setting the reloc 417 address or the reloc symbol index. 418 419 LOCAL_SYMS is a pointer to the swapped in local symbols. 420 421 LOCAL_SECTIONS is an array giving the section in the input file 422 corresponding to the st_shndx field of each local symbol. 423 424 The global hash table entry for the global symbols can be found 425 via elf_sym_hashes (input_bfd). 426 427 When generating relocateable output, this function must handle 428 STB_LOCAL/STT_SECTION symbols specially. The output symbol is 429 going to be the section symbol corresponding to the output 430 section, which means that the addend must be adjusted 431 accordingly. */ 432 boolean (*elf_backend_relocate_section) 433 PARAMS ((bfd *output_bfd, struct bfd_link_info *info, 434 bfd *input_bfd, asection *input_section, bfd_byte *contents, 435 Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms, 436 asection **local_sections)); 437 438 /* The FINISH_DYNAMIC_SYMBOL function is called by the ELF backend 439 linker just before it writes a symbol out to the .dynsym section. 440 The processor backend may make any required adjustment to the 441 symbol. It may also take the opportunity to set contents of the 442 dynamic sections. Note that FINISH_DYNAMIC_SYMBOL is called on 443 all .dynsym symbols, while ADJUST_DYNAMIC_SYMBOL is only called 444 on those symbols which are defined by a dynamic object. */ 445 boolean (*elf_backend_finish_dynamic_symbol) 446 PARAMS ((bfd *output_bfd, struct bfd_link_info *info, 447 struct elf_link_hash_entry *h, Elf_Internal_Sym *sym)); 448 449 /* The FINISH_DYNAMIC_SECTIONS function is called by the ELF backend 450 linker just before it writes all the dynamic sections out to the 451 output file. The FINISH_DYNAMIC_SYMBOL will have been called on 452 all dynamic symbols. */ 453 boolean (*elf_backend_finish_dynamic_sections) 454 PARAMS ((bfd *output_bfd, struct bfd_link_info *info)); 455 456 /* A function to do any beginning processing needed for the ELF file 457 before building the ELF headers and computing file positions. */ 458 void (*elf_backend_begin_write_processing) 459 PARAMS ((bfd *, struct bfd_link_info *)); 460 461 /* A function to do any final processing needed for the ELF file 462 before writing it out. The LINKER argument is true if this BFD 463 was created by the ELF backend linker. */ 464 void (*elf_backend_final_write_processing) 465 PARAMS ((bfd *, boolean linker)); 466 467 /* This function is called by get_program_header_size. It should 468 return the number of additional program segments which this BFD 469 will need. It should return -1 on error. */ 470 int (*elf_backend_additional_program_headers) PARAMS ((bfd *)); 471 472 /* This function is called to modify an existing segment map in a 473 backend specific fashion. */ 474 boolean (*elf_backend_modify_segment_map) PARAMS ((bfd *)); 475 476 /* The swapping table to use when dealing with ECOFF information. 477 Used for the MIPS ELF .mdebug section. */ 478 const struct ecoff_debug_swap *elf_backend_ecoff_debug_swap; 479 480 /* Alternate EM_xxxx machine codes for this backend. */ 481 int elf_machine_alt1; 482 int elf_machine_alt2; 483 484 const struct elf_size_info *s; 485 486 unsigned want_got_plt : 1; 487 unsigned plt_readonly : 1; 488 unsigned want_plt_sym : 1; 489}; 490 491/* Information stored for each BFD section in an ELF file. This 492 structure is allocated by elf_new_section_hook. */ 493 494struct bfd_elf_section_data 495{ 496 /* The ELF header for this section. */ 497 Elf_Internal_Shdr this_hdr; 498 /* The ELF header for the reloc section associated with this 499 section, if any. */ 500 Elf_Internal_Shdr rel_hdr; 501 /* If there is a second reloc section associated with this section, 502 as can happen on Irix 6, this field points to the header. */ 503 Elf_Internal_Shdr *rel_hdr2; 504 /* The ELF section number of this section. Only used for an output 505 file. */ 506 int this_idx; 507 /* The ELF section number of the reloc section associated with this 508 section, if any. Only used for an output file. */ 509 int rel_idx; 510 /* Used by the backend linker to store the symbol hash table entries 511 associated with relocs against global symbols. */ 512 struct elf_link_hash_entry **rel_hashes; 513 /* A pointer to the swapped relocs. If the section uses REL relocs, 514 rather than RELA, all the r_addend fields will be zero. This 515 pointer may be NULL. It is used by the backend linker. */ 516 Elf_Internal_Rela *relocs; 517 /* Used by the backend linker when generating a shared library to 518 record the dynamic symbol index for a section symbol 519 corresponding to this section. */ 520 long dynindx; 521 /* A pointer used for .stab linking optimizations. */ 522 PTR stab_info; 523 /* A pointer available for the processor specific ELF backend. */ 524 PTR tdata; 525}; 526 527#define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd) 528 529#define get_elf_backend_data(abfd) \ 530 ((struct elf_backend_data *) (abfd)->xvec->backend_data) 531 532/* Enumeration to specify the special section. */ 533typedef enum elf_linker_section_enum 534{ 535 LINKER_SECTION_UNKNOWN, /* not used */ 536 LINKER_SECTION_GOT, /* .got section for global offset pointers */ 537 LINKER_SECTION_PLT, /* .plt section for generated procedure stubs */ 538 LINKER_SECTION_SDATA, /* .sdata/.sbss section for PowerPC */ 539 LINKER_SECTION_SDATA2, /* .sdata2/.sbss2 section for PowerPC */ 540 LINKER_SECTION_MAX /* # of linker sections */ 541} elf_linker_section_enum_t; 542 543/* Sections created by the linker. */ 544 545typedef struct elf_linker_section 546{ 547 char *name; /* name of the section */ 548 char *rel_name; /* name of the associated .rel{,a}. section */ 549 char *bss_name; /* name of a related .bss section */ 550 char *sym_name; /* name of symbol to reference this section */ 551 asection *section; /* pointer to the section */ 552 asection *bss_section; /* pointer to the bss section associated with this */ 553 asection *rel_section; /* pointer to the relocations needed for this section */ 554 struct elf_link_hash_entry *sym_hash; /* pointer to the created symbol hash value */ 555 bfd_vma initial_size; /* initial size before any linker generated allocations */ 556 bfd_vma sym_offset; /* offset of symbol from beginning of section */ 557 bfd_vma hole_size; /* size of reserved address hole in allocation */ 558 bfd_vma hole_offset; /* current offset for the hole */ 559 bfd_vma max_hole_offset; /* maximum offset for the hole */ 560 elf_linker_section_enum_t which; /* which section this is */ 561 boolean hole_written_p; /* whether the hole has been initialized */ 562 int alignment; /* alignment for the section */ 563 flagword flags; /* flags to use to create the section */ 564} elf_linker_section_t; 565 566/* Linked list of allocated pointer entries. This hangs off of the symbol lists, and 567 provides allows us to return different pointers, based on different addend's. */ 568 569typedef struct elf_linker_section_pointers 570{ 571 struct elf_linker_section_pointers *next; /* next allocated pointer for this symbol */ 572 bfd_vma offset; /* offset of pointer from beginning of section */ 573 bfd_signed_vma addend; /* addend used */ 574 elf_linker_section_enum_t which; /* which linker section this is */ 575 boolean written_address_p; /* whether address was written yet */ 576} elf_linker_section_pointers_t; 577 578/* Some private data is stashed away for future use using the tdata pointer 579 in the bfd structure. */ 580 581struct elf_obj_tdata 582{ 583 Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */ 584 Elf_Internal_Shdr **elf_sect_ptr; 585 Elf_Internal_Phdr *phdr; 586 struct elf_segment_map *segment_map; 587 struct bfd_strtab_hash *strtab_ptr; 588 int num_locals; 589 int num_globals; 590 asymbol **section_syms; /* STT_SECTION symbols for each section */ 591 Elf_Internal_Shdr symtab_hdr; 592 Elf_Internal_Shdr shstrtab_hdr; 593 Elf_Internal_Shdr strtab_hdr; 594 Elf_Internal_Shdr dynsymtab_hdr; 595 Elf_Internal_Shdr dynstrtab_hdr; 596 Elf_Internal_Shdr dynversym_hdr; 597 Elf_Internal_Shdr dynverref_hdr; 598 Elf_Internal_Shdr dynverdef_hdr; 599 unsigned int symtab_section, shstrtab_section; 600 unsigned int strtab_section, dynsymtab_section; 601 unsigned int dynversym_section, dynverdef_section, dynverref_section; 602 file_ptr next_file_pos; 603 void *prstatus; /* The raw /proc prstatus structure */ 604 void *prpsinfo; /* The raw /proc prpsinfo structure */ 605 bfd_vma gp; /* The gp value (MIPS only, for now) */ 606 unsigned int gp_size; /* The gp size (MIPS only, for now) */ 607 608 /* This is set to true if the object was created by the backend 609 linker. */ 610 boolean linker; 611 612 /* A mapping from external symbols to entries in the linker hash 613 table, used when linking. This is indexed by the symbol index 614 minus the sh_info field of the symbol table header. */ 615 struct elf_link_hash_entry **sym_hashes; 616 617 /* A mapping from local symbols to offsets into the global offset 618 table, used when linking. This is indexed by the symbol index. */ 619 bfd_vma *local_got_offsets; 620 621 /* A mapping from local symbols to offsets into the various linker 622 sections added. This is index by the symbol index. */ 623 elf_linker_section_pointers_t **linker_section_pointers; 624 625 /* The linker ELF emulation code needs to let the backend ELF linker 626 know what filename should be used for a dynamic object if the 627 dynamic object is found using a search. The emulation code then 628 sometimes needs to know what name was actually used. Until the 629 file has been added to the linker symbol table, this field holds 630 the name the linker wants. After it has been added, it holds the 631 name actually used, which will be the DT_SONAME entry if there is 632 one. */ 633 const char *dt_name; 634 635 /* Irix 5 often screws up the symbol table, sorting local symbols 636 after global symbols. This flag is set if the symbol table in 637 this BFD appears to be screwed up. If it is, we ignore the 638 sh_info field in the symbol table header, and always read all the 639 symbols. */ 640 boolean bad_symtab; 641 642 /* Records the result of `get_program_header_size'. */ 643 bfd_size_type program_header_size; 644 645 /* Used by find_nearest_line entry point. */ 646 PTR line_info; 647 648 /* Used by MIPS ELF find_nearest_line entry point. The structure 649 could be included directly in this one, but there's no point to 650 wasting the memory just for the infrequently called 651 find_nearest_line. */ 652 struct mips_elf_find_line *find_line_info; 653 654 /* An array of stub sections indexed by symbol number, used by the 655 MIPS ELF linker. FIXME: We should figure out some way to only 656 include this field for a MIPS ELF target. */ 657 asection **local_stubs; 658 659 /* Used to determine if the e_flags field has been initialized */ 660 boolean flags_init; 661 662 /* Number of symbol version definitions we are about to emit. */ 663 int cverdefs; 664 665 /* Number of symbol version references we are about to emit. */ 666 int cverrefs; 667 668 /* Symbol version definitions in external objects. */ 669 Elf_Internal_Verdef *verdef; 670 671 /* Symbol version references to external objects. */ 672 Elf_Internal_Verneed *verref; 673 674 /* Linker sections that we are interested in. */ 675 struct elf_linker_section *linker_section[ (int)LINKER_SECTION_MAX ]; 676}; 677 678#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data) 679#define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header) 680#define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr) 681#define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr) 682#define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section) 683#define elf_dynsymtab(bfd) (elf_tdata(bfd) -> dynsymtab_section) 684#define elf_dynversym(bfd) (elf_tdata(bfd) -> dynversym_section) 685#define elf_dynverdef(bfd) (elf_tdata(bfd) -> dynverdef_section) 686#define elf_dynverref(bfd) (elf_tdata(bfd) -> dynverref_section) 687#define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals) 688#define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals) 689#define elf_section_syms(bfd) (elf_tdata(bfd) -> section_syms) 690#define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo) 691#define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus) 692#define elf_gp(bfd) (elf_tdata(bfd) -> gp) 693#define elf_gp_size(bfd) (elf_tdata(bfd) -> gp_size) 694#define elf_sym_hashes(bfd) (elf_tdata(bfd) -> sym_hashes) 695#define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got_offsets) 696#define elf_local_ptr_offsets(bfd) (elf_tdata(bfd) -> linker_section_pointers) 697#define elf_dt_name(bfd) (elf_tdata(bfd) -> dt_name) 698#define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab) 699#define elf_flags_init(bfd) (elf_tdata(bfd) -> flags_init) 700#define elf_linker_section(bfd,n) (elf_tdata(bfd) -> linker_section[(int)n]) 701 702extern void _bfd_elf_swap_verdef_in 703 PARAMS ((bfd *, const Elf_External_Verdef *, Elf_Internal_Verdef *)); 704extern void _bfd_elf_swap_verdef_out 705 PARAMS ((bfd *, const Elf_Internal_Verdef *, Elf_External_Verdef *)); 706extern void _bfd_elf_swap_verdaux_in 707 PARAMS ((bfd *, const Elf_External_Verdaux *, Elf_Internal_Verdaux *)); 708extern void _bfd_elf_swap_verdaux_out 709 PARAMS ((bfd *, const Elf_Internal_Verdaux *, Elf_External_Verdaux *)); 710extern void _bfd_elf_swap_verneed_in 711 PARAMS ((bfd *, const Elf_External_Verneed *, Elf_Internal_Verneed *)); 712extern void _bfd_elf_swap_verneed_out 713 PARAMS ((bfd *, const Elf_Internal_Verneed *, Elf_External_Verneed *)); 714extern void _bfd_elf_swap_vernaux_in 715 PARAMS ((bfd *, const Elf_External_Vernaux *, Elf_Internal_Vernaux *)); 716extern void _bfd_elf_swap_vernaux_out 717 PARAMS ((bfd *, const Elf_Internal_Vernaux *, Elf_External_Vernaux *)); 718extern void _bfd_elf_swap_versym_in 719 PARAMS ((bfd *, const Elf_External_Versym *, Elf_Internal_Versym *)); 720extern void _bfd_elf_swap_versym_out 721 PARAMS ((bfd *, const Elf_Internal_Versym *, Elf_External_Versym *)); 722 723extern int _bfd_elf_section_from_bfd_section PARAMS ((bfd *, asection *)); 724extern char *bfd_elf_string_from_elf_section 725 PARAMS ((bfd *, unsigned, unsigned)); 726extern char *bfd_elf_get_str_section PARAMS ((bfd *, unsigned)); 727 728extern boolean _bfd_elf_print_private_bfd_data PARAMS ((bfd *, PTR)); 729extern void bfd_elf_print_symbol PARAMS ((bfd *, PTR, asymbol *, 730 bfd_print_symbol_type)); 731#define elf_string_from_elf_strtab(abfd,strindex) \ 732 bfd_elf_string_from_elf_section(abfd,elf_elfheader(abfd)->e_shstrndx,strindex) 733 734#define bfd_elf32_print_symbol bfd_elf_print_symbol 735#define bfd_elf64_print_symbol bfd_elf_print_symbol 736 737extern unsigned long bfd_elf_hash PARAMS ((CONST unsigned char *)); 738 739extern bfd_reloc_status_type bfd_elf_generic_reloc PARAMS ((bfd *, 740 arelent *, 741 asymbol *, 742 PTR, 743 asection *, 744 bfd *, 745 char **)); 746extern boolean bfd_elf_mkobject PARAMS ((bfd *)); 747extern Elf_Internal_Shdr *bfd_elf_find_section PARAMS ((bfd *, char *)); 748extern boolean _bfd_elf_make_section_from_shdr 749 PARAMS ((bfd *abfd, Elf_Internal_Shdr *hdr, const char *name)); 750extern struct bfd_hash_entry *_bfd_elf_link_hash_newfunc 751 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); 752extern struct bfd_link_hash_table *_bfd_elf_link_hash_table_create 753 PARAMS ((bfd *)); 754extern boolean _bfd_elf_link_hash_table_init 755 PARAMS ((struct elf_link_hash_table *, bfd *, 756 struct bfd_hash_entry *(*) (struct bfd_hash_entry *, 757 struct bfd_hash_table *, 758 const char *))); 759extern boolean _bfd_elf_slurp_version_tables PARAMS ((bfd *)); 760 761extern boolean _bfd_elf_copy_private_symbol_data 762 PARAMS ((bfd *, asymbol *, bfd *, asymbol *)); 763extern boolean _bfd_elf_copy_private_section_data 764 PARAMS ((bfd *, asection *, bfd *, asection *)); 765extern boolean _bfd_elf_write_object_contents PARAMS ((bfd *)); 766extern boolean _bfd_elf_set_section_contents PARAMS ((bfd *, sec_ptr, PTR, 767 file_ptr, 768 bfd_size_type)); 769extern long _bfd_elf_get_symtab_upper_bound PARAMS ((bfd *)); 770extern long _bfd_elf_get_symtab PARAMS ((bfd *, asymbol **)); 771extern long _bfd_elf_get_dynamic_symtab_upper_bound PARAMS ((bfd *)); 772extern long _bfd_elf_canonicalize_dynamic_symtab PARAMS ((bfd *, asymbol **)); 773extern long _bfd_elf_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr)); 774extern long _bfd_elf_canonicalize_reloc PARAMS ((bfd *, sec_ptr, 775 arelent **, asymbol **)); 776extern long _bfd_elf_get_dynamic_reloc_upper_bound PARAMS ((bfd *)); 777extern long _bfd_elf_canonicalize_dynamic_reloc PARAMS ((bfd *, arelent **, 778 asymbol **)); 779extern asymbol *_bfd_elf_make_empty_symbol PARAMS ((bfd *)); 780extern void _bfd_elf_get_symbol_info PARAMS ((bfd *, asymbol *, 781 symbol_info *)); 782extern boolean _bfd_elf_is_local_label_name PARAMS ((bfd *, const char *)); 783extern alent *_bfd_elf_get_lineno PARAMS ((bfd *, asymbol *)); 784extern boolean _bfd_elf_set_arch_mach PARAMS ((bfd *, enum bfd_architecture, 785 unsigned long)); 786extern boolean _bfd_elf_find_nearest_line PARAMS ((bfd *, asection *, 787 asymbol **, 788 bfd_vma, CONST char **, 789 CONST char **, 790 unsigned int *)); 791#define _bfd_elf_read_minisymbols _bfd_generic_read_minisymbols 792#define _bfd_elf_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol 793extern int _bfd_elf_sizeof_headers PARAMS ((bfd *, boolean)); 794extern boolean _bfd_elf_new_section_hook PARAMS ((bfd *, asection *)); 795 796/* If the target doesn't have reloc handling written yet: */ 797extern void _bfd_elf_no_info_to_howto PARAMS ((bfd *, arelent *, 798 Elf_Internal_Rela *)); 799 800extern boolean bfd_section_from_shdr PARAMS ((bfd *, unsigned int shindex)); 801extern boolean bfd_section_from_phdr PARAMS ((bfd *, Elf_Internal_Phdr *, int)); 802 803extern int _bfd_elf_symbol_from_bfd_symbol PARAMS ((bfd *, asymbol **)); 804 805asection *bfd_section_from_elf_index PARAMS ((bfd *, unsigned int)); 806boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *, 807 struct bfd_link_info *)); 808struct bfd_strtab_hash *_bfd_elf_stringtab_init PARAMS ((void)); 809boolean 810_bfd_elf_link_record_dynamic_symbol PARAMS ((struct bfd_link_info *, 811 struct elf_link_hash_entry *)); 812boolean 813_bfd_elf_compute_section_file_positions PARAMS ((bfd *, 814 struct bfd_link_info *)); 815void _bfd_elf_assign_file_positions_for_relocs PARAMS ((bfd *)); 816file_ptr _bfd_elf_assign_file_position_for_section PARAMS ((Elf_Internal_Shdr *, 817 file_ptr, 818 boolean)); 819 820extern boolean _bfd_elf_validate_reloc PARAMS ((bfd *, arelent *)); 821 822boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *, 823 struct bfd_link_info *)); 824boolean _bfd_elf_create_got_section PARAMS ((bfd *, 825 struct bfd_link_info *)); 826 827elf_linker_section_t *_bfd_elf_create_linker_section 828 PARAMS ((bfd *abfd, 829 struct bfd_link_info *info, 830 enum elf_linker_section_enum, 831 elf_linker_section_t *defaults)); 832 833elf_linker_section_pointers_t *_bfd_elf_find_pointer_linker_section 834 PARAMS ((elf_linker_section_pointers_t *linker_pointers, 835 bfd_signed_vma addend, 836 elf_linker_section_enum_t which)); 837 838boolean bfd_elf32_create_pointer_linker_section 839 PARAMS ((bfd *abfd, 840 struct bfd_link_info *info, 841 elf_linker_section_t *lsect, 842 struct elf_link_hash_entry *h, 843 const Elf32_Internal_Rela *rel)); 844 845bfd_vma bfd_elf32_finish_pointer_linker_section 846 PARAMS ((bfd *output_abfd, 847 bfd *input_bfd, 848 struct bfd_link_info *info, 849 elf_linker_section_t *lsect, 850 struct elf_link_hash_entry *h, 851 bfd_vma relocation, 852 const Elf32_Internal_Rela *rel, 853 int relative_reloc)); 854 855boolean bfd_elf64_create_pointer_linker_section 856 PARAMS ((bfd *abfd, 857 struct bfd_link_info *info, 858 elf_linker_section_t *lsect, 859 struct elf_link_hash_entry *h, 860 const Elf64_Internal_Rela *rel)); 861 862bfd_vma bfd_elf64_finish_pointer_linker_section 863 PARAMS ((bfd *output_abfd, 864 bfd *input_bfd, 865 struct bfd_link_info *info, 866 elf_linker_section_t *lsect, 867 struct elf_link_hash_entry *h, 868 bfd_vma relocation, 869 const Elf64_Internal_Rela *rel, 870 int relative_reloc)); 871 872boolean _bfd_elf_make_linker_section_rela 873 PARAMS ((bfd *dynobj, 874 elf_linker_section_t *lsect, 875 int alignment)); 876 877extern const bfd_target *bfd_elf32_object_p PARAMS ((bfd *)); 878extern const bfd_target *bfd_elf32_core_file_p PARAMS ((bfd *)); 879extern char *bfd_elf32_core_file_failing_command PARAMS ((bfd *)); 880extern int bfd_elf32_core_file_failing_signal PARAMS ((bfd *)); 881extern boolean bfd_elf32_core_file_matches_executable_p PARAMS ((bfd *, 882 bfd *)); 883 884extern boolean bfd_elf32_bfd_link_add_symbols 885 PARAMS ((bfd *, struct bfd_link_info *)); 886extern boolean bfd_elf32_bfd_final_link 887 PARAMS ((bfd *, struct bfd_link_info *)); 888 889extern void bfd_elf32_swap_symbol_in 890 PARAMS ((bfd *, const Elf32_External_Sym *, Elf_Internal_Sym *)); 891extern void bfd_elf32_swap_symbol_out 892 PARAMS ((bfd *, const Elf_Internal_Sym *, PTR)); 893extern void bfd_elf32_swap_reloc_in 894 PARAMS ((bfd *, const Elf32_External_Rel *, Elf_Internal_Rel *)); 895extern void bfd_elf32_swap_reloc_out 896 PARAMS ((bfd *, const Elf_Internal_Rel *, Elf32_External_Rel *)); 897extern void bfd_elf32_swap_reloca_in 898 PARAMS ((bfd *, const Elf32_External_Rela *, Elf_Internal_Rela *)); 899extern void bfd_elf32_swap_reloca_out 900 PARAMS ((bfd *, const Elf_Internal_Rela *, Elf32_External_Rela *)); 901extern void bfd_elf32_swap_phdr_in 902 PARAMS ((bfd *, const Elf32_External_Phdr *, Elf_Internal_Phdr *)); 903extern void bfd_elf32_swap_phdr_out 904 PARAMS ((bfd *, const Elf_Internal_Phdr *, Elf32_External_Phdr *)); 905extern void bfd_elf32_swap_dyn_in 906 PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *)); 907extern void bfd_elf32_swap_dyn_out 908 PARAMS ((bfd *, const Elf_Internal_Dyn *, Elf32_External_Dyn *)); 909extern long bfd_elf32_slurp_symbol_table 910 PARAMS ((bfd *, asymbol **, boolean)); 911extern boolean bfd_elf32_write_shdrs_and_ehdr PARAMS ((bfd *)); 912extern int bfd_elf32_write_out_phdrs 913 PARAMS ((bfd *, const Elf_Internal_Phdr *, int)); 914extern boolean bfd_elf32_add_dynamic_entry 915 PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma)); 916extern boolean bfd_elf32_link_create_dynamic_sections 917 PARAMS ((bfd *, struct bfd_link_info *)); 918extern Elf_Internal_Rela *_bfd_elf32_link_read_relocs 919 PARAMS ((bfd *, asection *, PTR, Elf_Internal_Rela *, boolean)); 920 921extern const bfd_target *bfd_elf64_object_p PARAMS ((bfd *)); 922extern const bfd_target *bfd_elf64_core_file_p PARAMS ((bfd *)); 923extern char *bfd_elf64_core_file_failing_command PARAMS ((bfd *)); 924extern int bfd_elf64_core_file_failing_signal PARAMS ((bfd *)); 925extern boolean bfd_elf64_core_file_matches_executable_p PARAMS ((bfd *, 926 bfd *)); 927extern boolean bfd_elf64_bfd_link_add_symbols 928 PARAMS ((bfd *, struct bfd_link_info *)); 929extern boolean bfd_elf64_bfd_final_link 930 PARAMS ((bfd *, struct bfd_link_info *)); 931 932extern void bfd_elf64_swap_symbol_in 933 PARAMS ((bfd *, const Elf64_External_Sym *, Elf_Internal_Sym *)); 934extern void bfd_elf64_swap_symbol_out 935 PARAMS ((bfd *, const Elf_Internal_Sym *, PTR)); 936extern void bfd_elf64_swap_reloc_in 937 PARAMS ((bfd *, const Elf64_External_Rel *, Elf_Internal_Rel *)); 938extern void bfd_elf64_swap_reloc_out 939 PARAMS ((bfd *, const Elf_Internal_Rel *, Elf64_External_Rel *)); 940extern void bfd_elf64_swap_reloca_in 941 PARAMS ((bfd *, const Elf64_External_Rela *, Elf_Internal_Rela *)); 942extern void bfd_elf64_swap_reloca_out 943 PARAMS ((bfd *, const Elf_Internal_Rela *, Elf64_External_Rela *)); 944extern void bfd_elf64_swap_phdr_in 945 PARAMS ((bfd *, const Elf64_External_Phdr *, Elf_Internal_Phdr *)); 946extern void bfd_elf64_swap_phdr_out 947 PARAMS ((bfd *, const Elf_Internal_Phdr *, Elf64_External_Phdr *)); 948extern void bfd_elf64_swap_dyn_in 949 PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *)); 950extern void bfd_elf64_swap_dyn_out 951 PARAMS ((bfd *, const Elf_Internal_Dyn *, Elf64_External_Dyn *)); 952extern long bfd_elf64_slurp_symbol_table 953 PARAMS ((bfd *, asymbol **, boolean)); 954extern boolean bfd_elf64_write_shdrs_and_ehdr PARAMS ((bfd *)); 955extern int bfd_elf64_write_out_phdrs 956 PARAMS ((bfd *, const Elf_Internal_Phdr *, int)); 957extern boolean bfd_elf64_add_dynamic_entry 958 PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma)); 959extern boolean bfd_elf64_link_create_dynamic_sections 960 PARAMS ((bfd *, struct bfd_link_info *)); 961extern Elf_Internal_Rela *_bfd_elf64_link_read_relocs 962 PARAMS ((bfd *, asection *, PTR, Elf_Internal_Rela *, boolean)); 963 964#define bfd_elf32_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol 965#define bfd_elf64_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol 966 967/* MIPS ELF specific routines. */ 968 969extern boolean _bfd_mips_elf_object_p PARAMS ((bfd *)); 970extern boolean _bfd_mips_elf_section_from_shdr 971 PARAMS ((bfd *, Elf_Internal_Shdr *, const char *)); 972extern boolean _bfd_mips_elf_fake_sections 973 PARAMS ((bfd *, Elf_Internal_Shdr *, asection *)); 974extern boolean _bfd_mips_elf_section_from_bfd_section 975 PARAMS ((bfd *, Elf_Internal_Shdr *, asection *, int *)); 976extern boolean _bfd_mips_elf_section_processing 977 PARAMS ((bfd *, Elf_Internal_Shdr *)); 978extern void _bfd_mips_elf_symbol_processing PARAMS ((bfd *, asymbol *)); 979extern boolean _bfd_mips_elf_read_ecoff_info 980 PARAMS ((bfd *, asection *, struct ecoff_debug_info *)); 981extern void _bfd_mips_elf_final_write_processing PARAMS ((bfd *, boolean)); 982extern bfd_reloc_status_type _bfd_mips_elf_hi16_reloc 983 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); 984extern bfd_reloc_status_type _bfd_mips_elf_lo16_reloc 985 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); 986extern bfd_reloc_status_type _bfd_mips_elf_gprel16_reloc 987 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); 988extern bfd_reloc_status_type _bfd_mips_elf_got16_reloc 989 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); 990extern bfd_reloc_status_type _bfd_mips_elf_gprel32_reloc 991 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); 992extern boolean _bfd_mips_elf_set_private_flags PARAMS ((bfd *, flagword)); 993extern boolean _bfd_mips_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *)); 994extern boolean _bfd_mips_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *)); 995extern boolean _bfd_mips_elf_find_nearest_line 996 PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **, 997 const char **, unsigned int *)); 998extern boolean _bfd_mips_elf_set_section_contents 999 PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type)); 1000 1001#endif /* _LIBELF_H_ */ 1002