1 /* BFD back-end data structures for ELF files.
2 Copyright (C) 1992, 1993 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24 #include "elf/common.h"
25 #include "elf/internal.h"
26 #include "elf/external.h"
29 /* If size isn't specified as 64 or 32, NAME macro should fail. */
32 #define NAME(x,y) CAT4(x,64,_,y)
35 #define NAME(x,y) CAT4(x,32,_,y)
40 #define NAME(x,y) CAT4(x,NOSIZE,_,y)
43 #define ElfNAME(X) NAME(Elf,X)
44 #define elfNAME(X) NAME(elf,X)
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. */
55 /* ELF symbol information. */
56 Elf_Internal_Sym internal_elf_sym;
57 /* Backend specific information. */
60 unsigned int hppa_arg_reloc;
67 /* ELF linker hash table entries. */
69 struct elf_link_hash_entry
71 struct bfd_link_hash_entry root;
73 /* Symbol index in output file. This is initialized to -1. It is
74 set to -2 if the symbol is used by a reloc. */
80 /* Symbol index as a dynamic symbol. Initialized to -1, and remains
81 -1 if this is not a dynamic symbol. */
84 /* String table index in .dynstr if this is a dynamic symbol. */
85 unsigned long dynstr_index;
87 /* If this is a weak defined symbol from a dynamic object, this
88 field points to a defined symbol with the same value, if there is
89 one. Otherwise it is NULL. */
90 struct elf_link_hash_entry *weakdef;
92 /* If this symbol requires an entry in the global offset table, the
93 processor specific backend uses this field to hold the offset
94 into the .got section. If this field is -1, then the symbol does
95 not require a global offset table entry. */
98 /* If this symbol requires an entry in the procedure linkage table,
99 the processor specific backend uses these two fields to hold the
100 offset into the procedure linkage section and the offset into the
101 .got section. If plt_offset is -1, then the symbol does not
102 require an entry in the procedure linkage table. */
105 /* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */
108 /* Some flags; legal values follow. */
109 unsigned char elf_link_hash_flags;
110 /* Symbol is referenced by a non-shared object. */
111 #define ELF_LINK_HASH_REF_REGULAR 01
112 /* Symbol is defined by a non-shared object. */
113 #define ELF_LINK_HASH_DEF_REGULAR 02
114 /* Symbol is referenced by a shared object. */
115 #define ELF_LINK_HASH_REF_DYNAMIC 04
116 /* Symbol is defined by a shared object. */
117 #define ELF_LINK_HASH_DEF_DYNAMIC 010
118 /* Dynamic symbol has been adjustd. */
119 #define ELF_LINK_HASH_DYNAMIC_ADJUSTED 020
120 /* Symbol needs a copy reloc. */
121 #define ELF_LINK_HASH_NEEDS_COPY 040
122 /* Symbol needs a procedure linkage table entry. */
123 #define ELF_LINK_HASH_NEEDS_PLT 0100
126 /* ELF linker hash table. */
128 struct elf_link_hash_table
130 struct bfd_link_hash_table root;
131 /* Whether we have created the special dynamic sections required
132 when linking against or generating a shared object. */
133 boolean dynamic_sections_created;
134 /* The BFD used to hold special sections created by the linker.
135 This will be the first BFD found which requires these sections to
138 /* The number of symbols found in the link which must be put into
139 the .dynsym section. */
141 /* The string table of dynamic symbols, which becomes the .dynstr
143 struct bfd_strtab_hash *dynstr;
144 /* The number of buckets in the hash table in the .hash section.
145 This is based on the number of dynamic symbols. */
147 /* A linked list of DT_NEEDED names found in dynamic objects
148 included in the link. */
149 struct bfd_elf_link_needed_list *needed;
152 /* Look up an entry in an ELF linker hash table. */
154 #define elf_link_hash_lookup(table, string, create, copy, follow) \
155 ((struct elf_link_hash_entry *) \
156 bfd_link_hash_lookup (&(table)->root, (string), (create), \
159 /* Traverse an ELF linker hash table. */
161 #define elf_link_hash_traverse(table, func, info) \
162 (bfd_link_hash_traverse \
164 (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
167 /* Get the ELF linker hash table from a link_info structure. */
169 #define elf_hash_table(p) ((struct elf_link_hash_table *) ((p)->hash))
171 /* Constant information held for an ELF backend. */
173 struct elf_size_info {
174 unsigned char sizeof_ehdr, sizeof_phdr, sizeof_shdr;
175 unsigned char sizeof_rel, sizeof_rela, sizeof_sym, sizeof_dyn, sizeof_note;
177 unsigned char arch_size, file_align;
178 unsigned char elfclass, ev_current;
179 int (*write_out_phdrs) PARAMS ((bfd *, Elf_Internal_Phdr *, int));
180 boolean (*write_shdrs_and_ehdr) PARAMS ((bfd *));
181 void (*write_relocs) PARAMS ((bfd *, asection *, PTR));
182 void (*swap_symbol_out) PARAMS ((bfd *, Elf_Internal_Sym *, PTR));
183 boolean (*slurp_reloc_table) PARAMS ((bfd *, asection *, asymbol **));
184 long (*slurp_symbol_table) PARAMS ((bfd *, asymbol **, boolean));
187 #define elf_symbol_from(ABFD,S) \
188 (((S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \
189 && (S)->the_bfd->tdata.elf_obj_data != 0) \
190 ? (elf_symbol_type *) (S) \
193 struct elf_backend_data
195 /* Whether the backend uses REL or RELA relocations. FIXME: some
196 ELF backends use both. When we need to support one, this whole
197 approach will need to be changed. */
200 /* The architecture for this backend. */
201 enum bfd_architecture arch;
203 /* The ELF machine code (EM_xxxx) for this backend. */
204 int elf_machine_code;
206 /* The maximum page size for this backend. */
209 /* This is true if the linker should act like collect and gather
210 global constructors and destructors by name. This is true for
211 MIPS ELF because the Irix 5 tools can not handle the .init
215 /* A function to translate an ELF RELA relocation to a BFD arelent
217 void (*elf_info_to_howto) PARAMS ((bfd *, arelent *,
218 Elf_Internal_Rela *));
220 /* A function to translate an ELF REL relocation to a BFD arelent
222 void (*elf_info_to_howto_rel) PARAMS ((bfd *, arelent *,
223 Elf_Internal_Rel *));
225 /* A function to determine whether a symbol is global when
226 partitioning the symbol table into local and global symbols.
227 This should be NULL for most targets, in which case the correct
228 thing will be done. MIPS ELF, at least on the Irix 5, has
229 special requirements. */
230 boolean (*elf_backend_sym_is_global) PARAMS ((bfd *, asymbol *));
232 /* The remaining functions are hooks which are called only if they
235 /* A function to permit a backend specific check on whether a
236 particular BFD format is relevant for an object file, and to
237 permit the backend to set any global information it wishes. When
238 this is called elf_elfheader is set, but anything else should be
239 used with caution. If this returns false, the check_format
240 routine will return a bfd_error_wrong_format error. */
241 boolean (*elf_backend_object_p) PARAMS ((bfd *));
243 /* A function to do additional symbol processing when reading the
244 ELF symbol table. This is where any processor-specific special
245 section indices are handled. */
246 void (*elf_backend_symbol_processing) PARAMS ((bfd *, asymbol *));
248 /* A function to do additional symbol processing after reading the
249 entire ELF symbol table. */
250 boolean (*elf_backend_symbol_table_processing) PARAMS ((bfd *,
254 /* A function to do additional processing on the ELF section header
255 just before writing it out. This is used to set the flags and
256 type fields for some sections, or to actually write out data for
258 boolean (*elf_backend_section_processing) PARAMS ((bfd *,
259 Elf32_Internal_Shdr *));
261 /* A function to handle unusual section types when creating BFD
262 sections from ELF sections. */
263 boolean (*elf_backend_section_from_shdr) PARAMS ((bfd *,
264 Elf32_Internal_Shdr *,
267 /* A function to set up the ELF section header for a BFD section in
268 preparation for writing it out. This is where the flags and type
269 fields are set for unusual sections. */
270 boolean (*elf_backend_fake_sections) PARAMS ((bfd *, Elf32_Internal_Shdr *,
273 /* A function to get the ELF section index for a BFD section. If
274 this returns true, the section was found. If it is a normal ELF
275 section, *RETVAL should be left unchanged. If it is not a normal
276 ELF section *RETVAL should be set to the SHN_xxxx index. */
277 boolean (*elf_backend_section_from_bfd_section)
278 PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *, int *retval));
280 /* If this field is not NULL, it is called by the add_symbols phase
281 of a link just before adding a symbol to the global linker hash
282 table. It may modify any of the fields as it wishes. If *NAME
283 is set to NULL, the symbol will be skipped rather than being
284 added to the hash table. This function is responsible for
285 handling all processor dependent symbol bindings and section
286 indices, and must set at least *FLAGS and *SEC for each processor
287 dependent case; failure to do so will cause a link error. */
288 boolean (*elf_add_symbol_hook)
289 PARAMS ((bfd *abfd, struct bfd_link_info *info,
290 const Elf_Internal_Sym *, const char **name,
291 flagword *flags, asection **sec, bfd_vma *value));
293 /* If this field is not NULL, it is called by the elf_link_output_sym
294 phase of a link for each symbol which will appear in the object file. */
295 boolean (*elf_backend_link_output_symbol_hook)
296 PARAMS ((bfd *, struct bfd_link_info *info, const char *,
297 Elf_Internal_Sym *, asection *));
299 /* The CREATE_DYNAMIC_SECTIONS function is called by the ELF backend
300 linker the first time it encounters a dynamic object in the link.
301 This function must create any sections required for dynamic
302 linking. The ABFD argument is a dynamic object. The .interp,
303 .dynamic, .dynsym, .dynstr, and .hash functions have already been
304 created, and this function may modify the section flags if
305 desired. This function will normally create the .got and .plt
306 sections, but different backends have different requirements. */
307 boolean (*elf_backend_create_dynamic_sections)
308 PARAMS ((bfd *abfd, struct bfd_link_info *info));
310 /* The CHECK_RELOCS function is called by the add_symbols phase of
311 the ELF backend linker. It is called once for each section with
312 relocs of an object file, just after the symbols for the object
313 file have been added to the global linker hash table. The
314 function must look through the relocs and do any special handling
315 required. This generally means allocating space in the global
316 offset table, and perhaps allocating space for a reloc. The
317 relocs are always passed as Rela structures; if the section
318 actually uses Rel structures, the r_addend field will always be
320 boolean (*check_relocs)
321 PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *o,
322 const Elf_Internal_Rela *relocs));
324 /* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend
325 linker for every symbol which is defined by a dynamic object and
326 referenced by a regular object. This is called after all the
327 input files have been seen, but before the SIZE_DYNAMIC_SECTIONS
328 function has been called. The hash table entry should be
329 bfd_link_hash_defined ore bfd_link_hash_defweak, and it should be
330 defined in a section from a dynamic object. Dynamic object
331 sections are not included in the final link, and this function is
332 responsible for changing the value to something which the rest of
333 the link can deal with. This will normally involve adding an
334 entry to the .plt or .got or some such section, and setting the
335 symbol to point to that. */
336 boolean (*elf_backend_adjust_dynamic_symbol)
337 PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *h));
339 /* The SIZE_DYNAMIC_SECTIONS function is called by the ELF backend
340 linker after all the linker input files have been seen but before
341 the sections sizes have been set. This is called after
342 ADJUST_DYNAMIC_SYMBOL has been called on all appropriate symbols.
343 It is only called when linking against a dynamic object. It must
344 set the sizes of the dynamic sections, and may fill in their
345 contents as well. The generic ELF linker can handle the .dynsym,
346 .dynstr and .hash sections. This function must handle the
347 .interp section and any sections created by the
348 CREATE_DYNAMIC_SECTIONS entry point. */
349 boolean (*elf_backend_size_dynamic_sections)
350 PARAMS ((bfd *output_bfd, struct bfd_link_info *info));
352 /* The RELOCATE_SECTION function is called by the ELF backend linker
353 to handle the relocations for a section.
355 The relocs are always passed as Rela structures; if the section
356 actually uses Rel structures, the r_addend field will always be
359 This function is responsible for adjust the section contents as
360 necessary, and (if using Rela relocs and generating a
361 relocateable output file) adjusting the reloc addend as
364 This function does not have to worry about setting the reloc
365 address or the reloc symbol index.
367 LOCAL_SYMS is a pointer to the swapped in local symbols.
369 LOCAL_SECTIONS is an array giving the section in the input file
370 corresponding to the st_shndx field of each local symbol.
372 The global hash table entry for the global symbols can be found
373 via elf_sym_hashes (input_bfd).
375 When generating relocateable output, this function must handle
376 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
377 going to be the section symbol corresponding to the output
378 section, which means that the addend must be adjusted
380 boolean (*elf_backend_relocate_section)
381 PARAMS ((bfd *output_bfd, struct bfd_link_info *info,
382 bfd *input_bfd, asection *input_section, bfd_byte *contents,
383 Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms,
384 asection **local_sections));
386 /* The FINISH_DYNAMIC_SYMBOL function is called by the ELF backend
387 linker just before it writes a symbol out to the .dynsym section.
388 The processor backend may make any required adjustment to the
389 symbol. It may also take the opportunity to set contents of the
390 dynamic sections. Note that FINISH_DYNAMIC_SYMBOL is called on
391 all .dynsym symbols, while ADJUST_DYNAMIC_SYMBOL is only called
392 on those symbols which are defined by a dynamic object. */
393 boolean (*elf_backend_finish_dynamic_symbol)
394 PARAMS ((bfd *output_bfd, struct bfd_link_info *info,
395 struct elf_link_hash_entry *h, Elf_Internal_Sym *sym));
397 /* The FINISH_DYNAMIC_SECTIONS function is called by the ELF backend
398 linker just before it writes all the dynamic sections out to the
399 output file. The FINISH_DYNAMIC_SYMBOL will have been called on
400 all dynamic symbols. */
401 boolean (*elf_backend_finish_dynamic_sections)
402 PARAMS ((bfd *output_bfd, struct bfd_link_info *info));
404 /* A function to do any beginning processing needed for the ELF file
405 before building the ELF headers and computing file positions. */
406 void (*elf_backend_begin_write_processing)
407 PARAMS ((bfd *, struct bfd_link_info *));
409 /* A function to do any final processing needed for the ELF file
410 before writing it out. The LINKER argument is true if this BFD
411 was created by the ELF backend linker. */
412 void (*elf_backend_final_write_processing)
413 PARAMS ((bfd *, boolean linker));
415 /* A function to create any special program headers required by the
416 backend. PHDRS are the program headers, and PHDR_COUNT is the
417 number of them. If PHDRS is NULL, this just counts headers
418 without creating them. This returns an updated value for
420 int (*elf_backend_create_program_headers)
421 PARAMS ((bfd *, Elf_Internal_Phdr *phdrs, int phdr_count));
423 /* The swapping table to use when dealing with ECOFF information.
424 Used for the MIPS ELF .mdebug section. */
425 const struct ecoff_debug_swap *elf_backend_ecoff_debug_swap;
427 /* Alternate EM_xxxx machine codes for this backend. */
428 int elf_machine_alt1;
429 int elf_machine_alt2;
431 const struct elf_size_info *s;
433 unsigned want_got_plt : 1;
434 unsigned plt_readonly : 1;
435 unsigned want_plt_sym : 1;
437 /* Put ELF and program headers in the first loadable segment. */
438 unsigned want_hdr_in_seg : 1;
441 /* Information stored for each BFD section in an ELF file. This
442 structure is allocated by elf_new_section_hook. */
444 struct bfd_elf_section_data {
445 /* The ELF header for this section. */
446 Elf_Internal_Shdr this_hdr;
447 /* The ELF header for the reloc section associated with this
449 Elf_Internal_Shdr rel_hdr;
450 /* The ELF section number of this section. Only used for an output
453 /* The ELF section number of the reloc section associated with this
454 section, if any. Only used for an output file. */
456 /* Used by the backend linker to store the symbol hash table entries
457 associated with relocs against global symbols. */
458 struct elf_link_hash_entry **rel_hashes;
459 /* A pointer to the swapped relocs. If the section uses REL relocs,
460 rather than RELA, all the r_addend fields will be zero. This
461 pointer may be NULL. It is used by the backend linker. */
462 Elf_Internal_Rela *relocs;
463 /* Used by the backend linker when generating a shared library to
464 record the dynamic symbol index for a section symbol
465 corresponding to this section. */
469 #define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd)
471 #define get_elf_backend_data(abfd) \
472 ((struct elf_backend_data *) (abfd)->xvec->backend_data)
474 /* Some private data is stashed away for future use using the tdata pointer
475 in the bfd structure. */
479 Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */
480 Elf_Internal_Shdr **elf_sect_ptr;
481 Elf_Internal_Phdr *phdr;
482 struct bfd_strtab_hash *strtab_ptr;
485 asymbol **section_syms; /* STT_SECTION symbols for each section */
486 Elf_Internal_Shdr symtab_hdr;
487 Elf_Internal_Shdr shstrtab_hdr;
488 Elf_Internal_Shdr strtab_hdr;
489 Elf_Internal_Shdr dynsymtab_hdr;
490 Elf_Internal_Shdr dynstrtab_hdr;
491 int symtab_section, shstrtab_section, strtab_section, dynsymtab_section;
492 file_ptr next_file_pos;
493 void *prstatus; /* The raw /proc prstatus structure */
494 void *prpsinfo; /* The raw /proc prpsinfo structure */
495 bfd_vma gp; /* The gp value (MIPS only, for now) */
496 int gp_size; /* The gp size (MIPS only, for now) */
498 /* This is set to true if the object was created by the backend
502 /* A mapping from external symbols to entries in the linker hash
503 table, used when linking. This is indexed by the symbol index
504 minus the sh_info field of the symbol table header. */
505 struct elf_link_hash_entry **sym_hashes;
507 /* A mapping from local symbols to offsets into the global offset
508 table, used when linking. This is indexed by the symbol index. */
509 bfd_vma *local_got_offsets;
511 /* The linker ELF emulation code needs to let the backend ELF linker
512 know what filename should be used for a dynamic object if the
513 dynamic object is found using a search. This field is used to
514 hold that information. */
515 const char *dt_needed_name;
517 /* Irix 5 often screws up the symbol table, sorting local symbols
518 after global symbols. This flag is set if the symbol table in
519 this BFD appears to be screwed up. If it is, we ignore the
520 sh_info field in the symbol table header, and always read all the
524 /* Records the result of `get_program_header_size'. */
525 bfd_size_type program_header_size;
527 /* Used by MIPS ELF find_nearest_line entry point. The structure
528 could be included directly in this one, but there's no point to
529 wasting the memory just for the infrequently called
530 find_nearest_line. */
531 struct mips_elf_find_line *find_line_info;
533 /* Used by PowerPC to determine if the e_flags field has been intiialized */
534 boolean ppc_flags_init;
537 #define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
538 #define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header)
539 #define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr)
540 #define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr)
541 #define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
542 #define elf_dynsymtab(bfd) (elf_tdata(bfd) -> dynsymtab_section)
543 #define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals)
544 #define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals)
545 #define elf_section_syms(bfd) (elf_tdata(bfd) -> section_syms)
546 #define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo)
547 #define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus)
548 #define elf_gp(bfd) (elf_tdata(bfd) -> gp)
549 #define elf_gp_size(bfd) (elf_tdata(bfd) -> gp_size)
550 #define elf_sym_hashes(bfd) (elf_tdata(bfd) -> sym_hashes)
551 #define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got_offsets)
552 #define elf_dt_needed_name(bfd) (elf_tdata(bfd) -> dt_needed_name)
553 #define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab)
554 #define elf_ppc_flags_init(bfd) (elf_tdata(bfd) -> ppc_flags_init)
556 extern char * bfd_elf_string_from_elf_section PARAMS ((bfd *, unsigned, unsigned));
557 extern char * bfd_elf_get_str_section PARAMS ((bfd *, unsigned));
559 extern void bfd_elf_print_symbol PARAMS ((bfd *, PTR, asymbol *,
560 bfd_print_symbol_type));
561 #define elf_string_from_elf_strtab(abfd,strindex) \
562 bfd_elf_string_from_elf_section(abfd,elf_elfheader(abfd)->e_shstrndx,strindex)
564 #define bfd_elf32_print_symbol bfd_elf_print_symbol
565 #define bfd_elf64_print_symbol bfd_elf_print_symbol
566 #define bfd_elf32_mkobject bfd_elf_mkobject
567 #define bfd_elf64_mkobject bfd_elf_mkobject
568 #define elf_mkobject bfd_elf_mkobject
570 extern unsigned long bfd_elf_hash PARAMS ((CONST unsigned char *));
572 extern bfd_reloc_status_type bfd_elf_generic_reloc PARAMS ((bfd *,
579 extern boolean bfd_elf_mkobject PARAMS ((bfd *));
580 extern Elf_Internal_Shdr *bfd_elf_find_section PARAMS ((bfd *, char *));
581 extern boolean _bfd_elf_make_section_from_shdr
582 PARAMS ((bfd *abfd, Elf_Internal_Shdr *hdr, const char *name));
583 extern struct bfd_hash_entry *_bfd_elf_link_hash_newfunc
584 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
585 extern struct bfd_link_hash_table *_bfd_elf_link_hash_table_create
587 extern boolean _bfd_elf_link_hash_table_init
588 PARAMS ((struct elf_link_hash_table *, bfd *,
589 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
590 struct bfd_hash_table *,
593 extern boolean _bfd_elf_write_object_contents PARAMS ((bfd *));
594 extern boolean _bfd_elf_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
597 extern long _bfd_elf_get_symtab_upper_bound PARAMS ((bfd *));
598 extern long _bfd_elf_get_symtab PARAMS ((bfd *, asymbol **));
599 extern long _bfd_elf_get_dynamic_symtab_upper_bound PARAMS ((bfd *));
600 extern long _bfd_elf_canonicalize_dynamic_symtab PARAMS ((bfd *, asymbol **));
601 extern long _bfd_elf_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
602 extern long _bfd_elf_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
603 arelent **, asymbol **));
604 extern asymbol *_bfd_elf_make_empty_symbol PARAMS ((bfd *));
605 extern void _bfd_elf_get_symbol_info PARAMS ((bfd *, asymbol *,
607 extern alent *_bfd_elf_get_lineno PARAMS ((bfd *, asymbol *));
608 extern boolean _bfd_elf_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
610 extern boolean _bfd_elf_find_nearest_line PARAMS ((bfd *, asection *,
612 bfd_vma, CONST char **,
615 #define _bfd_elf_read_minisymbols _bfd_generic_read_minisymbols
616 #define _bfd_elf_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
617 extern int _bfd_elf_sizeof_headers PARAMS ((bfd *, boolean));
618 extern boolean _bfd_elf_new_section_hook PARAMS ((bfd *, asection *));
620 /* If the target doesn't have reloc handling written yet: */
621 extern void _bfd_elf_no_info_to_howto PARAMS ((bfd *, arelent *,
622 Elf_Internal_Rela *));
624 asection *bfd_section_from_elf_index PARAMS ((bfd *, unsigned int));
625 boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
626 struct bfd_link_info *));
627 struct bfd_strtab_hash *_bfd_elf_stringtab_init PARAMS ((void));
629 _bfd_elf_link_record_dynamic_symbol PARAMS ((struct bfd_link_info *,
630 struct elf_link_hash_entry *));
632 _bfd_elf_compute_section_file_positions PARAMS ((bfd *,
633 struct bfd_link_info *));
634 void _bfd_elf_assign_file_positions_for_relocs PARAMS ((bfd *));
635 file_ptr _bfd_elf_assign_file_position_for_section PARAMS ((Elf_Internal_Shdr *,
639 boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
640 struct bfd_link_info *));
641 boolean _bfd_elf_create_got_section PARAMS ((bfd *,
642 struct bfd_link_info *));
644 extern const bfd_target *bfd_elf32_object_p PARAMS ((bfd *));
645 extern const bfd_target *bfd_elf32_core_file_p PARAMS ((bfd *));
646 extern char *bfd_elf32_core_file_failing_command PARAMS ((bfd *));
647 extern int bfd_elf32_core_file_failing_signal PARAMS ((bfd *));
648 extern boolean bfd_elf32_core_file_matches_executable_p PARAMS ((bfd *,
651 extern boolean bfd_elf32_bfd_link_add_symbols
652 PARAMS ((bfd *, struct bfd_link_info *));
653 extern boolean bfd_elf32_bfd_final_link
654 PARAMS ((bfd *, struct bfd_link_info *));
656 extern void bfd_elf32_swap_symbol_in
657 PARAMS ((bfd *, Elf32_External_Sym *, Elf_Internal_Sym *));
658 extern void bfd_elf32_swap_symbol_out
659 PARAMS ((bfd *, Elf_Internal_Sym *, PTR));
660 extern void bfd_elf32_swap_reloc_in
661 PARAMS ((bfd *, Elf32_External_Rel *, Elf_Internal_Rel *));
662 extern void bfd_elf32_swap_reloc_out
663 PARAMS ((bfd *, Elf_Internal_Rel *, Elf32_External_Rel *));
664 extern void bfd_elf32_swap_reloca_in
665 PARAMS ((bfd *, Elf32_External_Rela *, Elf_Internal_Rela *));
666 extern void bfd_elf32_swap_reloca_out
667 PARAMS ((bfd *, Elf_Internal_Rela *, Elf32_External_Rela *));
668 extern void bfd_elf32_swap_phdr_in
669 PARAMS ((bfd *, Elf32_External_Phdr *, Elf_Internal_Phdr *));
670 extern void bfd_elf32_swap_phdr_out
671 PARAMS ((bfd *, Elf_Internal_Phdr *, Elf32_External_Phdr *));
672 extern void bfd_elf32_swap_dyn_in
673 PARAMS ((bfd *, const Elf32_External_Dyn *, Elf_Internal_Dyn *));
674 extern void bfd_elf32_swap_dyn_out
675 PARAMS ((bfd *, const Elf_Internal_Dyn *, Elf32_External_Dyn *));
676 extern boolean bfd_elf32_add_dynamic_entry
677 PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma));
678 extern boolean bfd_elf32_link_create_dynamic_sections
679 PARAMS ((bfd *, struct bfd_link_info *));
681 extern const bfd_target *bfd_elf64_object_p PARAMS ((bfd *));
682 extern const bfd_target *bfd_elf64_core_file_p PARAMS ((bfd *));
683 extern char *bfd_elf64_core_file_failing_command PARAMS ((bfd *));
684 extern int bfd_elf64_core_file_failing_signal PARAMS ((bfd *));
685 extern boolean bfd_elf64_core_file_matches_executable_p PARAMS ((bfd *,
687 extern boolean bfd_elf64_bfd_link_add_symbols
688 PARAMS ((bfd *, struct bfd_link_info *));
689 extern boolean bfd_elf64_bfd_final_link
690 PARAMS ((bfd *, struct bfd_link_info *));
692 extern void bfd_elf64_swap_symbol_in
693 PARAMS ((bfd *, Elf64_External_Sym *, Elf_Internal_Sym *));
694 extern void bfd_elf64_swap_symbol_out
695 PARAMS ((bfd *, Elf_Internal_Sym *, PTR));
696 extern void bfd_elf64_swap_reloc_in
697 PARAMS ((bfd *, Elf64_External_Rel *, Elf_Internal_Rel *));
698 extern void bfd_elf64_swap_reloc_out
699 PARAMS ((bfd *, Elf_Internal_Rel *, Elf64_External_Rel *));
700 extern void bfd_elf64_swap_reloca_in
701 PARAMS ((bfd *, Elf64_External_Rela *, Elf_Internal_Rela *));
702 extern void bfd_elf64_swap_reloca_out
703 PARAMS ((bfd *, Elf_Internal_Rela *, Elf64_External_Rela *));
704 extern void bfd_elf64_swap_phdr_in
705 PARAMS ((bfd *, Elf64_External_Phdr *, Elf_Internal_Phdr *));
706 extern void bfd_elf64_swap_phdr_out
707 PARAMS ((bfd *, Elf_Internal_Phdr *, Elf64_External_Phdr *));
708 extern void bfd_elf64_swap_dyn_in
709 PARAMS ((bfd *, const Elf64_External_Dyn *, Elf_Internal_Dyn *));
710 extern void bfd_elf64_swap_dyn_out
711 PARAMS ((bfd *, const Elf_Internal_Dyn *, Elf64_External_Dyn *));
712 extern boolean bfd_elf64_add_dynamic_entry
713 PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma));
714 extern boolean bfd_elf64_link_create_dynamic_sections
715 PARAMS ((bfd *, struct bfd_link_info *));
717 #define bfd_elf32_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol
718 #define bfd_elf64_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol
720 #endif /* _LIBELF_H_ */