1 /* BFD back-end data structures for ELF files.
2 Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
3 2002, 2003 Free Software Foundation, Inc.
4 Written by Cygnus Support.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 #include "elf/common.h"
26 #include "elf/internal.h"
27 #include "elf/external.h"
30 /* The number of entries in a section is its size divided by the size
31 of a single entry. This is normally only applicable to reloc and
32 symbol table sections. */
33 #define NUM_SHDR_ENTRIES(shdr) ((shdr)->sh_size / (shdr)->sh_entsize)
35 /* If size isn't specified as 64 or 32, NAME macro should fail. */
36 /* Do not "beautify" the CONCAT* macro args. Traditional C will not
37 remove whitespace added here, and thus will fail to concatenate
41 #define NAME(x,y) CONCAT4 (x,64,_,y)
44 #define NAME(x,y) CONCAT4 (x,32,_,y)
49 #define NAME(x,y) CONCAT4 (x,NOSIZE,_,y)
52 #define ElfNAME(X) NAME(Elf,X)
53 #define elfNAME(X) NAME(elf,X)
55 /* Information held for an ELF symbol. The first field is the
56 corresponding asymbol. Every symbol is an ELF file is actually a
57 pointer to this structure, although it is often handled as a
58 pointer to an asymbol. */
64 /* ELF symbol information. */
65 Elf_Internal_Sym internal_elf_sym
;
66 /* Backend specific information. */
69 unsigned int hppa_arg_reloc
;
75 /* Version information. This is from an Elf_Internal_Versym
76 structure in a SHT_GNU_versym section. It is zero if there is no
77 version information. */
78 unsigned short version
;
82 struct elf_strtab_hash
;
86 /* ELF linker hash table entries. */
88 struct elf_link_hash_entry
90 struct bfd_link_hash_entry root
;
92 /* Symbol index in output file. This is initialized to -1. It is
93 set to -2 if the symbol is used by a reloc. */
96 /* Symbol index as a dynamic symbol. Initialized to -1, and remains
97 -1 if this is not a dynamic symbol. */
98 /* ??? Note that this is consistently used as a synonym for tests
99 against whether we can perform various simplifying transformations
100 to the code. (E.g. changing a pc-relative jump to a PLT entry
101 into a pc-relative jump to the target function.) That test, which
102 is often relatively complex, and someplaces wrong or incomplete,
103 should really be replaced by a predicate in elflink.c.
105 End result: this field -1 does not indicate that the symbol is
106 not in the dynamic symbol table, but rather that the symbol is
107 not visible outside this DSO. */
110 /* String table index in .dynstr if this is a dynamic symbol. */
111 unsigned long dynstr_index
;
113 /* Hash value of the name computed using the ELF hash function. */
114 unsigned long elf_hash_value
;
116 /* If this is a weak defined symbol from a dynamic object, this
117 field points to a defined symbol with the same value, if there is
118 one. Otherwise it is NULL. */
119 struct elf_link_hash_entry
*weakdef
;
121 /* If this symbol is used in the linker created sections, the processor
122 specific backend uses this field to map the field into the offset
123 from the beginning of the section. */
124 struct elf_linker_section_pointers
*linker_section_pointer
;
126 /* Version information. */
129 /* This field is used for a symbol which is not defined in a
130 regular object. It points to the version information read in
131 from the dynamic object. */
132 Elf_Internal_Verdef
*verdef
;
133 /* This field is used for a symbol which is defined in a regular
134 object. It is set up in size_dynamic_sections. It points to
135 the version information we should write out for this symbol. */
136 struct bfd_elf_version_tree
*vertree
;
139 /* Virtual table entry use information. This array is nominally of size
140 size/sizeof(target_void_pointer), though we have to be able to assume
141 and track a size while the symbol is still undefined. It is indexed
142 via offset/sizeof(target_void_pointer). */
143 size_t vtable_entries_size
;
144 bfd_boolean
*vtable_entries_used
;
146 /* Virtual table derivation info. */
147 struct elf_link_hash_entry
*vtable_parent
;
149 /* If this symbol requires an entry in the global offset table, the
150 processor specific backend uses this field to track usage and
151 final offset. Two schemes are supported: The first assumes that
152 a symbol may only have one GOT entry, and uses REFCOUNT until
153 size_dynamic_sections, at which point the contents of the .got is
154 fixed. Afterward, if OFFSET is -1, then the symbol does not
155 require a global offset table entry. The second scheme allows
156 multiple GOT entries per symbol, managed via a linked list
157 pointed to by GLIST. */
160 bfd_signed_vma refcount
;
162 struct got_entry
*glist
;
163 struct plt_entry
*plist
;
166 /* Same, but tracks a procedure linkage table entry. */
167 union gotplt_union plt
;
172 /* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */
175 /* Symbol st_other value, symbol visibility. */
178 /* Some flags; legal values follow. */
179 unsigned short elf_link_hash_flags
;
180 /* Symbol is referenced by a non-shared object. */
181 #define ELF_LINK_HASH_REF_REGULAR 01
182 /* Symbol is defined by a non-shared object. */
183 #define ELF_LINK_HASH_DEF_REGULAR 02
184 /* Symbol is referenced by a shared object. */
185 #define ELF_LINK_HASH_REF_DYNAMIC 04
186 /* Symbol is defined by a shared object. */
187 #define ELF_LINK_HASH_DEF_DYNAMIC 010
188 /* Symbol has a non-weak reference from a non-shared object. */
189 #define ELF_LINK_HASH_REF_REGULAR_NONWEAK 020
190 /* Dynamic symbol has been adjustd. */
191 #define ELF_LINK_HASH_DYNAMIC_ADJUSTED 040
192 /* Symbol needs a copy reloc. */
193 #define ELF_LINK_HASH_NEEDS_COPY 0100
194 /* Symbol needs a procedure linkage table entry. */
195 #define ELF_LINK_HASH_NEEDS_PLT 0200
196 /* Symbol appears in a non-ELF input file. */
197 #define ELF_LINK_NON_ELF 0400
198 /* Symbol should be marked as hidden in the version information. */
199 #define ELF_LINK_HIDDEN 01000
200 /* Symbol was forced to local scope due to a version script file. */
201 #define ELF_LINK_FORCED_LOCAL 02000
202 /* Symbol was marked during garbage collection. */
203 #define ELF_LINK_HASH_MARK 04000
204 /* Symbol is referenced by a non-GOT/non-PLT relocation. This is
205 not currently set by all the backends. */
206 #define ELF_LINK_NON_GOT_REF 010000
207 /* Symbol has a definition in a shared object. */
208 #define ELF_LINK_DYNAMIC_DEF 020000
209 /* Symbol is weak in all shared objects. */
210 #define ELF_LINK_DYNAMIC_WEAK 040000
213 /* Records local symbols to be emitted in the dynamic symbol table. */
215 struct elf_link_local_dynamic_entry
217 struct elf_link_local_dynamic_entry
*next
;
219 /* The input bfd this symbol came from. */
222 /* The index of the local symbol being copied. */
225 /* The index in the outgoing dynamic symbol table. */
228 /* A copy of the input symbol. */
229 Elf_Internal_Sym isym
;
232 struct elf_link_loaded_list
234 struct elf_link_loaded_list
*next
;
238 /* Structures used by the eh_frame optimization code. */
247 struct cie_header hdr
;
248 unsigned char version
;
249 unsigned char augmentation
[20];
250 unsigned int code_align
;
252 unsigned int ra_column
;
253 unsigned int augmentation_size
;
254 struct elf_link_hash_entry
*personality
;
255 unsigned char per_encoding
;
256 unsigned char lsda_encoding
;
257 unsigned char fde_encoding
;
258 unsigned char initial_insn_length
;
259 unsigned char make_relative
;
260 unsigned char make_lsda_relative
;
261 unsigned char initial_instructions
[50];
269 unsigned int new_offset
;
270 unsigned char fde_encoding
;
271 unsigned char lsda_encoding
;
272 unsigned char lsda_offset
;
273 unsigned char cie
: 1;
274 unsigned char removed
: 1;
275 unsigned char make_relative
: 1;
276 unsigned char make_lsda_relative
: 1;
277 unsigned char per_encoding_relative
: 1;
280 struct eh_frame_sec_info
283 unsigned int alloced
;
284 struct eh_cie_fde entry
[1];
287 struct eh_frame_array_ent
293 struct eh_frame_hdr_info
296 asection
*last_cie_sec
;
298 unsigned int last_cie_offset
;
299 unsigned int fde_count
, array_count
;
300 struct eh_frame_array_ent
*array
;
301 /* TRUE if .eh_frame_hdr should contain the sorted search table.
302 We build it if we successfully read all .eh_frame input sections
303 and recognize them. */
307 /* Cached start, size and alignment of PT_TLS segment. */
308 struct elf_link_tls_segment
315 /* ELF linker hash table. */
317 struct elf_link_hash_table
319 struct bfd_link_hash_table root
;
321 /* Whether we have created the special dynamic sections required
322 when linking against or generating a shared object. */
323 bfd_boolean dynamic_sections_created
;
325 /* The BFD used to hold special sections created by the linker.
326 This will be the first BFD found which requires these sections to
330 /* The value to use when initialising got.refcount/offset and
331 plt.refcount/offset in an elf_link_hash_entry. Set to zero when
332 the values are refcounts. Set to init_offset in
333 size_dynamic_sections when the values may be offsets. */
334 union gotplt_union init_refcount
;
336 /* The value to use for got.refcount/offset and plt.refcount/offset
337 when the values may be offsets. Normally (bfd_vma) -1. */
338 union gotplt_union init_offset
;
340 /* The number of symbols found in the link which must be put into
341 the .dynsym section. */
342 bfd_size_type dynsymcount
;
344 /* The string table of dynamic symbols, which becomes the .dynstr
346 struct elf_strtab_hash
*dynstr
;
348 /* The number of buckets in the hash table in the .hash section.
349 This is based on the number of dynamic symbols. */
350 bfd_size_type bucketcount
;
352 /* A linked list of DT_NEEDED names found in dynamic objects
353 included in the link. */
354 struct bfd_link_needed_list
*needed
;
356 /* The _GLOBAL_OFFSET_TABLE_ symbol. */
357 struct elf_link_hash_entry
*hgot
;
359 /* A pointer to information used to link stabs in sections. */
362 /* A pointer to information used to merge SEC_MERGE sections. */
365 /* Used by eh_frame code when editing .eh_frame. */
366 struct eh_frame_hdr_info eh_info
;
368 /* A linked list of local symbols to be added to .dynsym. */
369 struct elf_link_local_dynamic_entry
*dynlocal
;
371 /* A linked list of DT_RPATH/DT_RUNPATH names found in dynamic
372 objects included in the link. */
373 struct bfd_link_needed_list
*runpath
;
375 /* Cached start, size and alignment of PT_TLS segment. */
376 struct elf_link_tls_segment
*tls_segment
;
378 /* A linked list of BFD's loaded in the link. */
379 struct elf_link_loaded_list
*loaded
;
382 /* Look up an entry in an ELF linker hash table. */
384 #define elf_link_hash_lookup(table, string, create, copy, follow) \
385 ((struct elf_link_hash_entry *) \
386 bfd_link_hash_lookup (&(table)->root, (string), (create), \
389 /* Traverse an ELF linker hash table. */
391 #define elf_link_hash_traverse(table, func, info) \
392 (bfd_link_hash_traverse \
394 (bfd_boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
397 /* Get the ELF linker hash table from a link_info structure. */
399 #define elf_hash_table(p) ((struct elf_link_hash_table *) ((p)->hash))
401 /* Returns TRUE if the hash table is a struct elf_link_hash_table. */
402 #define is_elf_hash_table(p) \
403 ((p)->hash->type == bfd_link_elf_hash_table)
405 /* Used by bfd_section_from_r_symndx to cache a small number of local
406 symbol to section mappings. */
407 #define LOCAL_SYM_CACHE_SIZE 32
411 unsigned long indx
[LOCAL_SYM_CACHE_SIZE
];
412 asection
*sec
[LOCAL_SYM_CACHE_SIZE
];
415 /* Constant information held for an ELF backend. */
417 struct elf_size_info
{
418 unsigned char sizeof_ehdr
, sizeof_phdr
, sizeof_shdr
;
419 unsigned char sizeof_rel
, sizeof_rela
, sizeof_sym
, sizeof_dyn
, sizeof_note
;
421 /* The size of entries in the .hash section. */
422 unsigned char sizeof_hash_entry
;
424 /* The number of internal relocations to allocate per external
426 unsigned char int_rels_per_ext_rel
;
427 /* We use some fixed size arrays. This should be large enough to
428 handle all back-ends. */
429 #define MAX_INT_RELS_PER_EXT_REL 3
431 unsigned char arch_size
, log_file_align
;
432 unsigned char elfclass
, ev_current
;
433 int (*write_out_phdrs
)
434 PARAMS ((bfd
*, const Elf_Internal_Phdr
*, unsigned int));
435 bfd_boolean (*write_shdrs_and_ehdr
)
438 PARAMS ((bfd
*, asection
*, PTR
));
439 void (*swap_symbol_in
)
440 PARAMS ((bfd
*, const PTR
, const PTR
, Elf_Internal_Sym
*));
441 void (*swap_symbol_out
)
442 PARAMS ((bfd
*, const Elf_Internal_Sym
*, PTR
, PTR
));
443 bfd_boolean (*slurp_reloc_table
)
444 PARAMS ((bfd
*, asection
*, asymbol
**, bfd_boolean
));
445 long (*slurp_symbol_table
)
446 PARAMS ((bfd
*, asymbol
**, bfd_boolean
));
448 PARAMS ((bfd
*, const PTR
, Elf_Internal_Dyn
*));
450 PARAMS ((bfd
*, const Elf_Internal_Dyn
*, PTR
));
452 /* This function is called to swap in a REL relocation. If an
453 external relocation corresponds to more than one internal
454 relocation, then all relocations are swapped in at once. */
455 void (*swap_reloc_in
)
456 PARAMS ((bfd
*, const bfd_byte
*, Elf_Internal_Rela
*));
458 /* This function is called to swap out a REL relocation. */
459 void (*swap_reloc_out
)
460 PARAMS ((bfd
*, const Elf_Internal_Rela
*, bfd_byte
*));
462 /* This function is called to swap in a RELA relocation. If an
463 external relocation corresponds to more than one internal
464 relocation, then all relocations are swapped in at once. */
465 void (*swap_reloca_in
)
466 PARAMS ((bfd
*, const bfd_byte
*, Elf_Internal_Rela
*));
468 /* This function is called to swap out a RELA relocation. */
469 void (*swap_reloca_out
)
470 PARAMS ((bfd
*, const Elf_Internal_Rela
*, bfd_byte
*));
473 #define elf_symbol_from(ABFD,S) \
474 (((S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \
475 && (S)->the_bfd->tdata.elf_obj_data != 0) \
476 ? (elf_symbol_type *) (S) \
479 enum elf_reloc_type_class
{
481 reloc_class_relative
,
486 struct elf_reloc_cookie
488 Elf_Internal_Rela
*rels
, *rel
, *relend
;
489 Elf_Internal_Sym
*locsyms
;
493 struct elf_link_hash_entry
**sym_hashes
;
494 bfd_boolean bad_symtab
;
497 /* The level of IRIX compatibility we're striving for. */
505 struct elf_backend_data
507 /* The architecture for this backend. */
508 enum bfd_architecture arch
;
510 /* The ELF machine code (EM_xxxx) for this backend. */
511 int elf_machine_code
;
513 /* The maximum page size for this backend. */
516 /* A function to translate an ELF RELA relocation to a BFD arelent
518 void (*elf_info_to_howto
)
519 PARAMS ((bfd
*, arelent
*, Elf_Internal_Rela
*));
521 /* A function to translate an ELF REL relocation to a BFD arelent
523 void (*elf_info_to_howto_rel
)
524 PARAMS ((bfd
*, arelent
*, Elf_Internal_Rela
*));
526 /* A function to determine whether a symbol is global when
527 partitioning the symbol table into local and global symbols.
528 This should be NULL for most targets, in which case the correct
529 thing will be done. MIPS ELF, at least on the Irix 5, has
530 special requirements. */
531 bfd_boolean (*elf_backend_sym_is_global
)
532 PARAMS ((bfd
*, asymbol
*));
534 /* The remaining functions are hooks which are called only if they
537 /* A function to permit a backend specific check on whether a
538 particular BFD format is relevant for an object file, and to
539 permit the backend to set any global information it wishes. When
540 this is called elf_elfheader is set, but anything else should be
541 used with caution. If this returns FALSE, the check_format
542 routine will return a bfd_error_wrong_format error. */
543 bfd_boolean (*elf_backend_object_p
)
546 /* A function to do additional symbol processing when reading the
547 ELF symbol table. This is where any processor-specific special
548 section indices are handled. */
549 void (*elf_backend_symbol_processing
)
550 PARAMS ((bfd
*, asymbol
*));
552 /* A function to do additional symbol processing after reading the
553 entire ELF symbol table. */
554 bfd_boolean (*elf_backend_symbol_table_processing
)
555 PARAMS ((bfd
*, elf_symbol_type
*, unsigned int));
557 /* A function to set the type of the info field. Processor-specific
558 types should be handled here. */
559 int (*elf_backend_get_symbol_type
)
560 PARAMS (( Elf_Internal_Sym
*, int));
562 /* A function to do additional processing on the ELF section header
563 just before writing it out. This is used to set the flags and
564 type fields for some sections, or to actually write out data for
566 bfd_boolean (*elf_backend_section_processing
)
567 PARAMS ((bfd
*, Elf_Internal_Shdr
*));
569 /* A function to handle unusual section types when creating BFD
570 sections from ELF sections. */
571 bfd_boolean (*elf_backend_section_from_shdr
)
572 PARAMS ((bfd
*, Elf_Internal_Shdr
*, const char *));
574 /* A function to convert machine dependent section header flags to
575 BFD internal section header flags. */
576 bfd_boolean (*elf_backend_section_flags
)
577 PARAMS ((flagword
*, Elf_Internal_Shdr
*));
579 /* A function to handle unusual program segment types when creating BFD
580 sections from ELF program segments. */
581 bfd_boolean (*elf_backend_section_from_phdr
)
582 PARAMS ((bfd
*, Elf_Internal_Phdr
*, int));
584 /* A function to set up the ELF section header for a BFD section in
585 preparation for writing it out. This is where the flags and type
586 fields are set for unusual sections. */
587 bfd_boolean (*elf_backend_fake_sections
)
588 PARAMS ((bfd
*, Elf_Internal_Shdr
*, asection
*));
590 /* A function to get the ELF section index for a BFD section. If
591 this returns TRUE, the section was found. If it is a normal ELF
592 section, *RETVAL should be left unchanged. If it is not a normal
593 ELF section *RETVAL should be set to the SHN_xxxx index. */
594 bfd_boolean (*elf_backend_section_from_bfd_section
)
595 PARAMS ((bfd
*, asection
*, int *retval
));
597 /* If this field is not NULL, it is called by the add_symbols phase
598 of a link just before adding a symbol to the global linker hash
599 table. It may modify any of the fields as it wishes. If *NAME
600 is set to NULL, the symbol will be skipped rather than being
601 added to the hash table. This function is responsible for
602 handling all processor dependent symbol bindings and section
603 indices, and must set at least *FLAGS and *SEC for each processor
604 dependent case; failure to do so will cause a link error. */
605 bfd_boolean (*elf_add_symbol_hook
)
606 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
607 const Elf_Internal_Sym
*, const char **name
,
608 flagword
*flags
, asection
**sec
, bfd_vma
*value
));
610 /* If this field is not NULL, it is called by the elf_link_output_sym
611 phase of a link for each symbol which will appear in the object file. */
612 bfd_boolean (*elf_backend_link_output_symbol_hook
)
613 PARAMS ((bfd
*, struct bfd_link_info
*info
, const char *,
614 Elf_Internal_Sym
*, asection
*));
616 /* The CREATE_DYNAMIC_SECTIONS function is called by the ELF backend
617 linker the first time it encounters a dynamic object in the link.
618 This function must create any sections required for dynamic
619 linking. The ABFD argument is a dynamic object. The .interp,
620 .dynamic, .dynsym, .dynstr, and .hash functions have already been
621 created, and this function may modify the section flags if
622 desired. This function will normally create the .got and .plt
623 sections, but different backends have different requirements. */
624 bfd_boolean (*elf_backend_create_dynamic_sections
)
625 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
627 /* The CHECK_RELOCS function is called by the add_symbols phase of
628 the ELF backend linker. It is called once for each section with
629 relocs of an object file, just after the symbols for the object
630 file have been added to the global linker hash table. The
631 function must look through the relocs and do any special handling
632 required. This generally means allocating space in the global
633 offset table, and perhaps allocating space for a reloc. The
634 relocs are always passed as Rela structures; if the section
635 actually uses Rel structures, the r_addend field will always be
637 bfd_boolean (*check_relocs
)
638 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*o
,
639 const Elf_Internal_Rela
*relocs
));
641 /* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend
642 linker for every symbol which is defined by a dynamic object and
643 referenced by a regular object. This is called after all the
644 input files have been seen, but before the SIZE_DYNAMIC_SECTIONS
645 function has been called. The hash table entry should be
646 bfd_link_hash_defined ore bfd_link_hash_defweak, and it should be
647 defined in a section from a dynamic object. Dynamic object
648 sections are not included in the final link, and this function is
649 responsible for changing the value to something which the rest of
650 the link can deal with. This will normally involve adding an
651 entry to the .plt or .got or some such section, and setting the
652 symbol to point to that. */
653 bfd_boolean (*elf_backend_adjust_dynamic_symbol
)
654 PARAMS ((struct bfd_link_info
*info
, struct elf_link_hash_entry
*h
));
656 /* The ALWAYS_SIZE_SECTIONS function is called by the backend linker
657 after all the linker input files have been seen but before the
658 section sizes have been set. This is called after
659 ADJUST_DYNAMIC_SYMBOL, but before SIZE_DYNAMIC_SECTIONS. */
660 bfd_boolean (*elf_backend_always_size_sections
)
661 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
));
663 /* The SIZE_DYNAMIC_SECTIONS function is called by the ELF backend
664 linker after all the linker input files have been seen but before
665 the sections sizes have been set. This is called after
666 ADJUST_DYNAMIC_SYMBOL has been called on all appropriate symbols.
667 It is only called when linking against a dynamic object. It must
668 set the sizes of the dynamic sections, and may fill in their
669 contents as well. The generic ELF linker can handle the .dynsym,
670 .dynstr and .hash sections. This function must handle the
671 .interp section and any sections created by the
672 CREATE_DYNAMIC_SECTIONS entry point. */
673 bfd_boolean (*elf_backend_size_dynamic_sections
)
674 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
));
676 /* The RELOCATE_SECTION function is called by the ELF backend linker
677 to handle the relocations for a section.
679 The relocs are always passed as Rela structures; if the section
680 actually uses Rel structures, the r_addend field will always be
683 This function is responsible for adjust the section contents as
684 necessary, and (if using Rela relocs and generating a
685 relocateable output file) adjusting the reloc addend as
688 This function does not have to worry about setting the reloc
689 address or the reloc symbol index.
691 LOCAL_SYMS is a pointer to the swapped in local symbols.
693 LOCAL_SECTIONS is an array giving the section in the input file
694 corresponding to the st_shndx field of each local symbol.
696 The global hash table entry for the global symbols can be found
697 via elf_sym_hashes (input_bfd).
699 When generating relocateable output, this function must handle
700 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
701 going to be the section symbol corresponding to the output
702 section, which means that the addend must be adjusted
704 bfd_boolean (*elf_backend_relocate_section
)
705 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
,
706 bfd
*input_bfd
, asection
*input_section
, bfd_byte
*contents
,
707 Elf_Internal_Rela
*relocs
, Elf_Internal_Sym
*local_syms
,
708 asection
**local_sections
));
710 /* The FINISH_DYNAMIC_SYMBOL function is called by the ELF backend
711 linker just before it writes a symbol out to the .dynsym section.
712 The processor backend may make any required adjustment to the
713 symbol. It may also take the opportunity to set contents of the
714 dynamic sections. Note that FINISH_DYNAMIC_SYMBOL is called on
715 all .dynsym symbols, while ADJUST_DYNAMIC_SYMBOL is only called
716 on those symbols which are defined by a dynamic object. */
717 bfd_boolean (*elf_backend_finish_dynamic_symbol
)
718 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
,
719 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
));
721 /* The FINISH_DYNAMIC_SECTIONS function is called by the ELF backend
722 linker just before it writes all the dynamic sections out to the
723 output file. The FINISH_DYNAMIC_SYMBOL will have been called on
724 all dynamic symbols. */
725 bfd_boolean (*elf_backend_finish_dynamic_sections
)
726 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
));
728 /* A function to do any beginning processing needed for the ELF file
729 before building the ELF headers and computing file positions. */
730 void (*elf_backend_begin_write_processing
)
731 PARAMS ((bfd
*, struct bfd_link_info
*));
733 /* A function to do any final processing needed for the ELF file
734 before writing it out. The LINKER argument is TRUE if this BFD
735 was created by the ELF backend linker. */
736 void (*elf_backend_final_write_processing
)
737 PARAMS ((bfd
*, bfd_boolean linker
));
739 /* This function is called by get_program_header_size. It should
740 return the number of additional program segments which this BFD
741 will need. It should return -1 on error. */
742 int (*elf_backend_additional_program_headers
)
745 /* This function is called to modify an existing segment map in a
746 backend specific fashion. */
747 bfd_boolean (*elf_backend_modify_segment_map
)
750 /* This function is called during section gc to discover the section a
751 particular relocation refers to. */
752 asection
* (*gc_mark_hook
)
753 PARAMS ((asection
*sec
, struct bfd_link_info
*, Elf_Internal_Rela
*,
754 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*));
756 /* This function, if defined, is called during the sweep phase of gc
757 in order that a backend might update any data structures it might
759 bfd_boolean (*gc_sweep_hook
)
760 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*o
,
761 const Elf_Internal_Rela
*relocs
));
763 /* This function, if defined, is called after the ELF headers have
764 been created. This allows for things like the OS and ABI versions
766 void (*elf_backend_post_process_headers
)
767 PARAMS ((bfd
*, struct bfd_link_info
*));
769 /* This function, if defined, prints a symbol to file and returns the
770 name of the symbol to be printed. It should return NULL to fall
771 back to default symbol printing. */
772 const char *(*elf_backend_print_symbol_all
)
773 PARAMS ((bfd
*, PTR
, asymbol
*));
775 /* This function, if defined, is called after all local symbols and
776 global symbols converted to locals are emited into the symtab
777 section. It allows the backend to emit special global symbols
778 not handled in the hash table. */
779 bfd_boolean (*elf_backend_output_arch_syms
)
780 PARAMS ((bfd
*, struct bfd_link_info
*, PTR
,
781 bfd_boolean (*) (PTR
, const char *, Elf_Internal_Sym
*, asection
*)));
783 /* Copy any information related to dynamic linking from a pre-existing
784 symbol to a newly created symbol. Also called to copy flags and
785 other back-end info to a weakdef, in which case the symbol is not
786 newly created and plt/got refcounts and dynamic indices should not
788 void (*elf_backend_copy_indirect_symbol
)
789 PARAMS ((struct elf_backend_data
*, struct elf_link_hash_entry
*,
790 struct elf_link_hash_entry
*));
792 /* Modify any information related to dynamic linking such that the
793 symbol is not exported. */
794 void (*elf_backend_hide_symbol
)
795 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
797 /* Emit relocations. Overrides default routine for emitting relocs,
798 except during a relocatable link, or if all relocs are being emitted. */
799 bfd_boolean (*elf_backend_emit_relocs
)
800 PARAMS ((bfd
*, asection
*, Elf_Internal_Shdr
*, Elf_Internal_Rela
*));
802 /* Count relocations. Not called for relocatable links
803 or if all relocs are being preserved in the output. */
804 unsigned int (*elf_backend_count_relocs
)
805 PARAMS ((asection
*, Elf_Internal_Rela
*));
807 /* This function, if defined, is called when an NT_PRSTATUS note is found
809 bfd_boolean (*elf_backend_grok_prstatus
)
810 PARAMS ((bfd
*, Elf_Internal_Note
*));
812 /* This function, if defined, is called when an NT_PSINFO or NT_PRPSINFO
813 note is found in a core file. */
814 bfd_boolean (*elf_backend_grok_psinfo
)
815 PARAMS ((bfd
*, Elf_Internal_Note
*));
817 /* Functions to print VMAs. Special code to handle 64 bit ELF files. */
818 void (* elf_backend_sprintf_vma
)
819 PARAMS ((bfd
*, char *, bfd_vma
));
820 void (* elf_backend_fprintf_vma
)
821 PARAMS ((bfd
*, PTR
, bfd_vma
));
823 /* This function returns class of a reloc type. */
824 enum elf_reloc_type_class (*elf_backend_reloc_type_class
)
825 PARAMS ((const Elf_Internal_Rela
*));
827 /* This function, if defined, removes information about discarded functions
828 from other sections which mention them. */
829 bfd_boolean (*elf_backend_discard_info
)
830 PARAMS ((bfd
*, struct elf_reloc_cookie
*, struct bfd_link_info
*));
832 /* This function, if defined, signals that the function above has removed
833 the discarded relocations for this section. */
834 bfd_boolean (*elf_backend_ignore_discarded_relocs
)
835 PARAMS ((asection
*));
837 /* This function, if defined, may write out the given section.
838 Returns TRUE if it did so and FALSE if the caller should. */
839 bfd_boolean (*elf_backend_write_section
)
840 PARAMS ((bfd
*, asection
*, bfd_byte
*));
842 /* The level of IRIX compatibility we're striving for.
843 MIPS ELF specific function. */
844 irix_compat_t (*elf_backend_mips_irix_compat
)
847 reloc_howto_type
*(*elf_backend_mips_rtype_to_howto
)
848 PARAMS ((unsigned int, bfd_boolean
));
850 /* The swapping table to use when dealing with ECOFF information.
851 Used for the MIPS ELF .mdebug section. */
852 const struct ecoff_debug_swap
*elf_backend_ecoff_debug_swap
;
854 /* Alternate EM_xxxx machine codes for this backend. */
855 int elf_machine_alt1
;
856 int elf_machine_alt2
;
858 const struct elf_size_info
*s
;
860 /* offset of the _GLOBAL_OFFSET_TABLE_ symbol from the start of the
862 bfd_vma got_symbol_offset
;
864 /* The size in bytes of the headers for the GOT and PLT. This includes
865 the so-called reserved entries on some systems. */
866 bfd_vma got_header_size
;
867 bfd_vma plt_header_size
;
869 /* This is TRUE if the linker should act like collect and gather
870 global constructors and destructors by name. This is TRUE for
871 MIPS ELF because the Irix 5 tools can not handle the .init
873 unsigned collect
: 1;
875 /* This is TRUE if the linker should ignore changes to the type of a
876 symbol. This is TRUE for MIPS ELF because some Irix 5 objects
877 record undefined functions as STT_OBJECT although the definitions
879 unsigned type_change_ok
: 1;
881 /* Whether the backend may use REL relocations. (Some backends use
882 both REL and RELA relocations, and this flag is set for those
884 unsigned may_use_rel_p
: 1;
886 /* Whether the backend may use RELA relocations. (Some backends use
887 both REL and RELA relocations, and this flag is set for those
889 unsigned may_use_rela_p
: 1;
891 /* Whether the default relocation type is RELA. If a backend with
892 this flag set wants REL relocations for a particular section,
893 it must note that explicitly. Similarly, if this flag is clear,
894 and the backend wants RELA relocations for a particular
896 unsigned default_use_rela_p
: 1;
898 /* Set if RELA relocations for a relocatable link can be handled by
899 generic code. Backends that set this flag need do nothing in the
900 backend relocate_section routine for relocatable linking. */
901 unsigned rela_normal
: 1;
903 /* TRUE if addresses "naturally" sign extend. This is used when
904 swapping in from Elf32 when BFD64. */
905 unsigned sign_extend_vma
: 1;
907 unsigned want_got_plt
: 1;
908 unsigned plt_readonly
: 1;
909 unsigned want_plt_sym
: 1;
910 unsigned plt_not_loaded
: 1;
911 unsigned plt_alignment
: 4;
912 unsigned can_gc_sections
: 1;
913 unsigned can_refcount
: 1;
914 unsigned want_got_sym
: 1;
915 unsigned want_dynbss
: 1;
916 /* Targets which do not support physical addressing often require
917 that the p_paddr field in the section header to be set to zero.
918 This field indicates whether this behavior is required. */
919 unsigned want_p_paddr_set_to_zero
: 1;
922 /* Information stored for each BFD section in an ELF file. This
923 structure is allocated by elf_new_section_hook. */
925 struct bfd_elf_section_data
927 /* The ELF header for this section. */
928 Elf_Internal_Shdr this_hdr
;
930 /* The ELF header for the reloc section associated with this
932 Elf_Internal_Shdr rel_hdr
;
934 /* If there is a second reloc section associated with this section,
935 as can happen on Irix 6, this field points to the header. */
936 Elf_Internal_Shdr
*rel_hdr2
;
938 /* The number of relocations currently assigned to REL_HDR. */
939 unsigned int rel_count
;
941 /* The number of relocations currently assigned to REL_HDR2. */
942 unsigned int rel_count2
;
944 /* The ELF section number of this section. Only used for an output
948 /* The ELF section number of the reloc section indicated by
949 REL_HDR if any. Only used for an output file. */
952 /* The ELF section number of the reloc section indicated by
953 REL_HDR2 if any. Only used for an output file. */
956 /* Used by the backend linker when generating a shared library to
957 record the dynamic symbol index for a section symbol
958 corresponding to this section. A value of 0 means that there is
959 no dynamic symbol for this section. */
962 /* Used by the backend linker to store the symbol hash table entries
963 associated with relocs against global symbols. */
964 struct elf_link_hash_entry
**rel_hashes
;
966 /* A pointer to the swapped relocs. If the section uses REL relocs,
967 rather than RELA, all the r_addend fields will be zero. This
968 pointer may be NULL. It is used by the backend linker. */
969 Elf_Internal_Rela
*relocs
;
971 /* A pointer to a linked list tracking dynamic relocs copied for
975 /* A pointer to the bfd section used for dynamic relocs. */
979 /* Group name, if this section is a member of a group. */
982 /* Group signature sym, if this is the SHT_GROUP section. */
983 struct symbol_cache_entry
*id
;
986 /* A linked list of sections in the group. Circular when used by
988 asection
*next_in_group
;
990 /* A pointer used for various section optimizations. */
994 #define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd)
995 #define elf_group_name(sec) (elf_section_data(sec)->group.name)
996 #define elf_group_id(sec) (elf_section_data(sec)->group.id)
997 #define elf_next_in_group(sec) (elf_section_data(sec)->next_in_group)
999 /* Return TRUE if section has been discarded. */
1000 #define elf_discarded_section(sec) \
1001 (!bfd_is_abs_section (sec) \
1002 && bfd_is_abs_section ((sec)->output_section) \
1003 && sec->sec_info_type != ELF_INFO_TYPE_MERGE \
1004 && sec->sec_info_type != ELF_INFO_TYPE_JUST_SYMS)
1006 #define get_elf_backend_data(abfd) \
1007 ((struct elf_backend_data *) (abfd)->xvec->backend_data)
1009 /* Enumeration to specify the special section. */
1010 typedef enum elf_linker_section_enum
1012 LINKER_SECTION_UNKNOWN
, /* not used */
1013 LINKER_SECTION_GOT
, /* .got section for global offset pointers */
1014 LINKER_SECTION_PLT
, /* .plt section for generated procedure stubs */
1015 LINKER_SECTION_SDATA
, /* .sdata/.sbss section for PowerPC */
1016 LINKER_SECTION_SDATA2
, /* .sdata2/.sbss2 section for PowerPC */
1017 LINKER_SECTION_MAX
/* # of linker sections */
1018 } elf_linker_section_enum_t
;
1020 /* Sections created by the linker. */
1022 typedef struct elf_linker_section
1024 char *name
; /* name of the section */
1025 char *rel_name
; /* name of the associated .rel{,a}. section */
1026 char *bss_name
; /* name of a related .bss section */
1027 char *sym_name
; /* name of symbol to reference this section */
1028 asection
*section
; /* pointer to the section */
1029 asection
*bss_section
; /* pointer to the bss section associated with this */
1030 asection
*rel_section
; /* pointer to the relocations needed for this section */
1031 struct elf_link_hash_entry
*sym_hash
; /* pointer to the created symbol hash value */
1032 bfd_vma initial_size
; /* initial size before any linker generated allocations */
1033 bfd_vma sym_offset
; /* offset of symbol from beginning of section */
1034 bfd_vma hole_size
; /* size of reserved address hole in allocation */
1035 bfd_vma hole_offset
; /* current offset for the hole */
1036 bfd_vma max_hole_offset
; /* maximum offset for the hole */
1037 elf_linker_section_enum_t which
; /* which section this is */
1038 bfd_boolean hole_written_p
; /* whether the hole has been initialized */
1039 unsigned int alignment
; /* alignment for the section */
1040 flagword flags
; /* flags to use to create the section */
1041 } elf_linker_section_t
;
1043 /* Linked list of allocated pointer entries. This hangs off of the symbol lists, and
1044 provides allows us to return different pointers, based on different addend's. */
1046 typedef struct elf_linker_section_pointers
1048 struct elf_linker_section_pointers
*next
; /* next allocated pointer for this symbol */
1049 bfd_vma offset
; /* offset of pointer from beginning of section */
1050 bfd_vma addend
; /* addend used */
1051 elf_linker_section_enum_t which
; /* which linker section this is */
1052 bfd_boolean written_address_p
; /* whether address was written yet */
1053 } elf_linker_section_pointers_t
;
1055 /* This struct is used to pass information to routines called via
1056 elf_link_hash_traverse which must return failure. */
1058 struct elf_info_failed
1061 struct bfd_link_info
*info
;
1062 struct bfd_elf_version_tree
*verdefs
;
1065 /* This structure is used to pass information to
1066 _bfd_elf_link_assign_sym_version. */
1068 struct elf_assign_sym_version_info
1072 /* General link information. */
1073 struct bfd_link_info
*info
;
1075 struct bfd_elf_version_tree
*verdefs
;
1076 /* Whether we had a failure. */
1080 /* This structure is used to pass information to
1081 _bfd_elf_link_find_version_dependencies. */
1083 struct elf_find_verdep_info
1087 /* General link information. */
1088 struct bfd_link_info
*info
;
1089 /* The number of dependencies. */
1091 /* Whether we had a failure. */
1095 /* Some private data is stashed away for future use using the tdata pointer
1096 in the bfd structure. */
1098 struct elf_obj_tdata
1100 Elf_Internal_Ehdr elf_header
[1]; /* Actual data, but ref like ptr */
1101 Elf_Internal_Shdr
**elf_sect_ptr
;
1102 Elf_Internal_Phdr
*phdr
;
1103 struct elf_segment_map
*segment_map
;
1104 struct elf_strtab_hash
*strtab_ptr
;
1107 unsigned int num_elf_sections
; /* elf_sect_ptr size */
1108 int num_section_syms
;
1109 asymbol
**section_syms
; /* STT_SECTION symbols for each section */
1110 Elf_Internal_Shdr symtab_hdr
;
1111 Elf_Internal_Shdr shstrtab_hdr
;
1112 Elf_Internal_Shdr strtab_hdr
;
1113 Elf_Internal_Shdr dynsymtab_hdr
;
1114 Elf_Internal_Shdr dynstrtab_hdr
;
1115 Elf_Internal_Shdr dynversym_hdr
;
1116 Elf_Internal_Shdr dynverref_hdr
;
1117 Elf_Internal_Shdr dynverdef_hdr
;
1118 Elf_Internal_Shdr symtab_shndx_hdr
;
1119 unsigned int symtab_section
, shstrtab_section
;
1120 unsigned int strtab_section
, dynsymtab_section
;
1121 unsigned int symtab_shndx_section
;
1122 unsigned int dynversym_section
, dynverdef_section
, dynverref_section
;
1123 file_ptr next_file_pos
;
1125 /* we don't need these inside bfd anymore, and I think
1126 these weren't used outside bfd. */
1127 void *prstatus
; /* The raw /proc prstatus structure */
1128 void *prpsinfo
; /* The raw /proc prpsinfo structure */
1130 bfd_vma gp
; /* The gp value */
1131 unsigned int gp_size
; /* The gp size */
1133 Elf_Internal_Shdr
**group_sect_ptr
;
1136 /* Information grabbed from an elf core file. */
1143 /* This is set to TRUE if the object was created by the backend
1147 /* A mapping from external symbols to entries in the linker hash
1148 table, used when linking. This is indexed by the symbol index
1149 minus the sh_info field of the symbol table header. */
1150 struct elf_link_hash_entry
**sym_hashes
;
1152 /* Track usage and final offsets of GOT entries for local symbols.
1153 This array is indexed by symbol index. Elements are used
1154 identically to "got" in struct elf_link_hash_entry. */
1157 bfd_signed_vma
*refcounts
;
1159 struct got_entry
**ents
;
1162 /* A mapping from local symbols to offsets into the various linker
1163 sections added. This is index by the symbol index. */
1164 elf_linker_section_pointers_t
**linker_section_pointers
;
1166 /* The linker ELF emulation code needs to let the backend ELF linker
1167 know what filename should be used for a dynamic object if the
1168 dynamic object is found using a search. The emulation code then
1169 sometimes needs to know what name was actually used. Until the
1170 file has been added to the linker symbol table, this field holds
1171 the name the linker wants. After it has been added, it holds the
1172 name actually used, which will be the DT_SONAME entry if there is
1174 const char *dt_name
;
1176 /* When a reference in a regular object is resolved by a shared
1177 object is loaded into via the DT_NEEDED entries by the linker
1178 ELF emulation code, we need to add the shared object to the
1179 DT_NEEDED list of the resulting binary to indicate the dependency
1180 as if the -l option is passed to the linker. This field holds the
1181 name of the loaded shared object. */
1182 const char *dt_soname
;
1184 /* Irix 5 often screws up the symbol table, sorting local symbols
1185 after global symbols. This flag is set if the symbol table in
1186 this BFD appears to be screwed up. If it is, we ignore the
1187 sh_info field in the symbol table header, and always read all the
1189 bfd_boolean bad_symtab
;
1191 /* Records the result of `get_program_header_size'. */
1192 bfd_size_type program_header_size
;
1194 /* Used by find_nearest_line entry point. */
1197 /* Used by MIPS ELF find_nearest_line entry point. The structure
1198 could be included directly in this one, but there's no point to
1199 wasting the memory just for the infrequently called
1200 find_nearest_line. */
1201 struct mips_elf_find_line
*find_line_info
;
1203 /* A place to stash dwarf1 info for this bfd. */
1204 struct dwarf1_debug
*dwarf1_find_line_info
;
1206 /* A place to stash dwarf2 info for this bfd. */
1207 PTR dwarf2_find_line_info
;
1209 /* An array of stub sections indexed by symbol number, used by the
1210 MIPS ELF linker. FIXME: We should figure out some way to only
1211 include this field for a MIPS ELF target. */
1212 asection
**local_stubs
;
1214 /* Used to determine if PT_GNU_EH_FRAME segment header should be
1216 asection
*eh_frame_hdr
;
1218 /* Used to determine if the e_flags field has been initialized */
1219 bfd_boolean flags_init
;
1221 /* Number of symbol version definitions we are about to emit. */
1222 unsigned int cverdefs
;
1224 /* Number of symbol version references we are about to emit. */
1225 unsigned int cverrefs
;
1227 /* Symbol version definitions in external objects. */
1228 Elf_Internal_Verdef
*verdef
;
1230 /* Symbol version references to external objects. */
1231 Elf_Internal_Verneed
*verref
;
1233 /* Linker sections that we are interested in. */
1234 struct elf_linker_section
*linker_section
[ (int)LINKER_SECTION_MAX
];
1236 /* The Irix 5 support uses two virtual sections, which represent
1237 text/data symbols defined in dynamic objects. */
1238 asymbol
*elf_data_symbol
;
1239 asymbol
*elf_text_symbol
;
1240 asection
*elf_data_section
;
1241 asection
*elf_text_section
;
1244 #define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
1245 #define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header)
1246 #define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr)
1247 #define elf_numsections(bfd) (elf_tdata(bfd) -> num_elf_sections)
1248 #define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr)
1249 #define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
1250 #define elf_symtab_shndx(bfd) (elf_tdata(bfd) -> symtab_shndx_section)
1251 #define elf_dynsymtab(bfd) (elf_tdata(bfd) -> dynsymtab_section)
1252 #define elf_dynversym(bfd) (elf_tdata(bfd) -> dynversym_section)
1253 #define elf_dynverdef(bfd) (elf_tdata(bfd) -> dynverdef_section)
1254 #define elf_dynverref(bfd) (elf_tdata(bfd) -> dynverref_section)
1255 #define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals)
1256 #define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals)
1257 #define elf_section_syms(bfd) (elf_tdata(bfd) -> section_syms)
1258 #define elf_num_section_syms(bfd) (elf_tdata(bfd) -> num_section_syms)
1259 #define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo)
1260 #define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus)
1261 #define elf_gp(bfd) (elf_tdata(bfd) -> gp)
1262 #define elf_gp_size(bfd) (elf_tdata(bfd) -> gp_size)
1263 #define elf_sym_hashes(bfd) (elf_tdata(bfd) -> sym_hashes)
1264 #define elf_local_got_refcounts(bfd) (elf_tdata(bfd) -> local_got.refcounts)
1265 #define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got.offsets)
1266 #define elf_local_got_ents(bfd) (elf_tdata(bfd) -> local_got.ents)
1267 #define elf_local_ptr_offsets(bfd) (elf_tdata(bfd) -> linker_section_pointers)
1268 #define elf_dt_name(bfd) (elf_tdata(bfd) -> dt_name)
1269 #define elf_dt_soname(bfd) (elf_tdata(bfd) -> dt_soname)
1270 #define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab)
1271 #define elf_flags_init(bfd) (elf_tdata(bfd) -> flags_init)
1272 #define elf_linker_section(bfd,n) (elf_tdata(bfd) -> linker_section[(int)n])
1274 extern void _bfd_elf_swap_verdef_in
1275 PARAMS ((bfd
*, const Elf_External_Verdef
*, Elf_Internal_Verdef
*));
1276 extern void _bfd_elf_swap_verdef_out
1277 PARAMS ((bfd
*, const Elf_Internal_Verdef
*, Elf_External_Verdef
*));
1278 extern void _bfd_elf_swap_verdaux_in
1279 PARAMS ((bfd
*, const Elf_External_Verdaux
*, Elf_Internal_Verdaux
*));
1280 extern void _bfd_elf_swap_verdaux_out
1281 PARAMS ((bfd
*, const Elf_Internal_Verdaux
*, Elf_External_Verdaux
*));
1282 extern void _bfd_elf_swap_verneed_in
1283 PARAMS ((bfd
*, const Elf_External_Verneed
*, Elf_Internal_Verneed
*));
1284 extern void _bfd_elf_swap_verneed_out
1285 PARAMS ((bfd
*, const Elf_Internal_Verneed
*, Elf_External_Verneed
*));
1286 extern void _bfd_elf_swap_vernaux_in
1287 PARAMS ((bfd
*, const Elf_External_Vernaux
*, Elf_Internal_Vernaux
*));
1288 extern void _bfd_elf_swap_vernaux_out
1289 PARAMS ((bfd
*, const Elf_Internal_Vernaux
*, Elf_External_Vernaux
*));
1290 extern void _bfd_elf_swap_versym_in
1291 PARAMS ((bfd
*, const Elf_External_Versym
*, Elf_Internal_Versym
*));
1292 extern void _bfd_elf_swap_versym_out
1293 PARAMS ((bfd
*, const Elf_Internal_Versym
*, Elf_External_Versym
*));
1295 extern int _bfd_elf_section_from_bfd_section
1296 PARAMS ((bfd
*, asection
*));
1297 extern char *bfd_elf_string_from_elf_section
1298 PARAMS ((bfd
*, unsigned, unsigned));
1299 extern char *bfd_elf_get_str_section
1300 PARAMS ((bfd
*, unsigned));
1301 extern Elf_Internal_Sym
*bfd_elf_get_elf_syms
1302 PARAMS ((bfd
*, Elf_Internal_Shdr
*, size_t, size_t,
1303 Elf_Internal_Sym
*, PTR
, Elf_External_Sym_Shndx
*));
1304 extern const char *bfd_elf_local_sym_name
1305 PARAMS ((bfd
*, Elf_Internal_Sym
*));
1307 extern bfd_boolean _bfd_elf_copy_private_bfd_data
1308 PARAMS ((bfd
*, bfd
*));
1309 extern bfd_boolean _bfd_elf_print_private_bfd_data
1310 PARAMS ((bfd
*, PTR
));
1311 extern void bfd_elf_print_symbol
1312 PARAMS ((bfd
*, PTR
, asymbol
*, bfd_print_symbol_type
));
1314 #define elf_string_from_elf_strtab(abfd, strindex) \
1315 bfd_elf_string_from_elf_section(abfd, elf_elfheader(abfd)->e_shstrndx, \
1318 #define bfd_elf32_print_symbol bfd_elf_print_symbol
1319 #define bfd_elf64_print_symbol bfd_elf_print_symbol
1321 extern void _bfd_elf_sprintf_vma
1322 PARAMS ((bfd
*, char *, bfd_vma
));
1323 extern void _bfd_elf_fprintf_vma
1324 PARAMS ((bfd
*, PTR
, bfd_vma
));
1326 extern enum elf_reloc_type_class _bfd_elf_reloc_type_class
1327 PARAMS ((const Elf_Internal_Rela
*));
1328 extern bfd_vma _bfd_elf_rela_local_sym
1329 PARAMS ((bfd
*, Elf_Internal_Sym
*, asection
*, Elf_Internal_Rela
*));
1330 extern bfd_vma _bfd_elf_rel_local_sym
1331 PARAMS ((bfd
*, Elf_Internal_Sym
*, asection
**, bfd_vma
));
1332 extern bfd_vma _bfd_elf_section_offset
1333 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*, bfd_vma
));
1335 extern unsigned long bfd_elf_hash
1336 PARAMS ((const char *));
1338 extern bfd_reloc_status_type bfd_elf_generic_reloc
1339 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
1340 extern bfd_boolean bfd_elf_mkobject
1342 extern bfd_boolean bfd_elf_mkcorefile
1344 extern Elf_Internal_Shdr
*bfd_elf_find_section
1345 PARAMS ((bfd
*, char *));
1346 extern bfd_boolean _bfd_elf_make_section_from_shdr
1347 PARAMS ((bfd
*, Elf_Internal_Shdr
*, const char *));
1348 extern bfd_boolean _bfd_elf_make_section_from_phdr
1349 PARAMS ((bfd
*, Elf_Internal_Phdr
*, int, const char *));
1350 extern struct bfd_hash_entry
*_bfd_elf_link_hash_newfunc
1351 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
1352 extern struct bfd_link_hash_table
*_bfd_elf_link_hash_table_create
1354 extern void _bfd_elf_link_hash_copy_indirect
1355 PARAMS ((struct elf_backend_data
*, struct elf_link_hash_entry
*,
1356 struct elf_link_hash_entry
*));
1357 extern void _bfd_elf_link_hash_hide_symbol
1358 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
1359 extern bfd_boolean _bfd_elf_link_hash_table_init
1360 PARAMS ((struct elf_link_hash_table
*, bfd
*,
1361 struct bfd_hash_entry
*(*) (struct bfd_hash_entry
*,
1362 struct bfd_hash_table
*,
1364 extern bfd_boolean _bfd_elf_slurp_version_tables
1366 extern bfd_boolean _bfd_elf_merge_sections
1367 PARAMS ((bfd
*, struct bfd_link_info
*));
1368 extern bfd_boolean bfd_elf_discard_group
1369 PARAMS ((bfd
*, struct sec
*));
1370 extern void bfd_elf_set_group_contents
1371 PARAMS ((bfd
*, asection
*, PTR
));
1372 extern void _bfd_elf_link_just_syms
1373 PARAMS ((asection
*, struct bfd_link_info
*));
1374 extern bfd_boolean _bfd_elf_copy_private_symbol_data
1375 PARAMS ((bfd
*, asymbol
*, bfd
*, asymbol
*));
1376 extern bfd_boolean _bfd_elf_copy_private_section_data
1377 PARAMS ((bfd
*, asection
*, bfd
*, asection
*));
1378 extern bfd_boolean _bfd_elf_write_object_contents
1380 extern bfd_boolean _bfd_elf_write_corefile_contents
1382 extern bfd_boolean _bfd_elf_set_section_contents
1383 PARAMS ((bfd
*, sec_ptr
, PTR
, file_ptr
, bfd_size_type
));
1384 extern long _bfd_elf_get_symtab_upper_bound
1386 extern long _bfd_elf_get_symtab
1387 PARAMS ((bfd
*, asymbol
**));
1388 extern long _bfd_elf_get_dynamic_symtab_upper_bound
1390 extern long _bfd_elf_canonicalize_dynamic_symtab
1391 PARAMS ((bfd
*, asymbol
**));
1392 extern long _bfd_elf_get_reloc_upper_bound
1393 PARAMS ((bfd
*, sec_ptr
));
1394 extern long _bfd_elf_canonicalize_reloc
1395 PARAMS ((bfd
*, sec_ptr
, arelent
**, asymbol
**));
1396 extern long _bfd_elf_get_dynamic_reloc_upper_bound
1398 extern long _bfd_elf_canonicalize_dynamic_reloc
1399 PARAMS ((bfd
*, arelent
**, asymbol
**));
1400 extern asymbol
*_bfd_elf_make_empty_symbol
1402 extern void _bfd_elf_get_symbol_info
1403 PARAMS ((bfd
*, asymbol
*, symbol_info
*));
1404 extern bfd_boolean _bfd_elf_is_local_label_name
1405 PARAMS ((bfd
*, const char *));
1406 extern alent
*_bfd_elf_get_lineno
1407 PARAMS ((bfd
*, asymbol
*));
1408 extern bfd_boolean _bfd_elf_set_arch_mach
1409 PARAMS ((bfd
*, enum bfd_architecture
, unsigned long));
1410 extern bfd_boolean _bfd_elf_find_nearest_line
1411 PARAMS ((bfd
*, asection
*, asymbol
**, bfd_vma
, const char **,
1412 const char **, unsigned int *));
1413 #define _bfd_elf_read_minisymbols _bfd_generic_read_minisymbols
1414 #define _bfd_elf_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
1415 extern int _bfd_elf_sizeof_headers
1416 PARAMS ((bfd
*, bfd_boolean
));
1417 extern bfd_boolean _bfd_elf_new_section_hook
1418 PARAMS ((bfd
*, asection
*));
1419 extern bfd_boolean _bfd_elf_init_reloc_shdr
1420 PARAMS ((bfd
*, Elf_Internal_Shdr
*, asection
*, bfd_boolean
));
1422 /* If the target doesn't have reloc handling written yet: */
1423 extern void _bfd_elf_no_info_to_howto
1424 PARAMS ((bfd
*, arelent
*, Elf_Internal_Rela
*));
1426 extern bfd_boolean bfd_section_from_shdr
1427 PARAMS ((bfd
*, unsigned int shindex
));
1428 extern bfd_boolean bfd_section_from_phdr
1429 PARAMS ((bfd
*, Elf_Internal_Phdr
*, int));
1431 extern int _bfd_elf_symbol_from_bfd_symbol
1432 PARAMS ((bfd
*, asymbol
**));
1434 extern asection
*bfd_section_from_r_symndx
1435 PARAMS ((bfd
*, struct sym_sec_cache
*, asection
*, unsigned long));
1436 extern asection
*bfd_section_from_elf_index
1437 PARAMS ((bfd
*, unsigned int));
1438 extern struct bfd_strtab_hash
*_bfd_elf_stringtab_init
1441 extern struct elf_strtab_hash
* _bfd_elf_strtab_init
1443 extern void _bfd_elf_strtab_free
1444 PARAMS ((struct elf_strtab_hash
*));
1445 extern bfd_size_type _bfd_elf_strtab_add
1446 PARAMS ((struct elf_strtab_hash
*, const char *, bfd_boolean
));
1447 extern void _bfd_elf_strtab_addref
1448 PARAMS ((struct elf_strtab_hash
*, bfd_size_type
));
1449 extern void _bfd_elf_strtab_delref
1450 PARAMS ((struct elf_strtab_hash
*, bfd_size_type
));
1451 extern void _bfd_elf_strtab_clear_all_refs
1452 PARAMS ((struct elf_strtab_hash
*));
1453 extern bfd_size_type _bfd_elf_strtab_size
1454 PARAMS ((struct elf_strtab_hash
*));
1455 extern bfd_size_type _bfd_elf_strtab_offset
1456 PARAMS ((struct elf_strtab_hash
*, bfd_size_type
));
1457 extern bfd_boolean _bfd_elf_strtab_emit
1458 PARAMS ((bfd
*, struct elf_strtab_hash
*));
1459 extern void _bfd_elf_strtab_finalize
1460 PARAMS ((struct elf_strtab_hash
*));
1462 extern bfd_boolean _bfd_elf_discard_section_eh_frame
1463 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*,
1464 bfd_boolean (*) (bfd_vma
, PTR
), struct elf_reloc_cookie
*));
1465 extern bfd_boolean _bfd_elf_discard_section_eh_frame_hdr
1466 PARAMS ((bfd
*, struct bfd_link_info
*));
1467 extern bfd_vma _bfd_elf_eh_frame_section_offset
1468 PARAMS ((bfd
*, asection
*, bfd_vma
));
1469 extern bfd_boolean _bfd_elf_write_section_eh_frame
1470 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*, bfd_byte
*));
1471 extern bfd_boolean _bfd_elf_write_section_eh_frame_hdr
1472 PARAMS ((bfd
*, struct bfd_link_info
*));
1473 extern bfd_boolean _bfd_elf_maybe_strip_eh_frame_hdr
1474 PARAMS ((struct bfd_link_info
*));
1476 extern bfd_boolean _bfd_elf_merge_symbol
1477 PARAMS ((bfd
*, struct bfd_link_info
*, const char *,
1478 Elf_Internal_Sym
*, asection
**, bfd_vma
*,
1479 struct elf_link_hash_entry
**, bfd_boolean
*, bfd_boolean
*,
1480 bfd_boolean
*, bfd_boolean
*, bfd_boolean
));
1482 extern bfd_boolean _bfd_elf_add_default_symbol
1483 PARAMS ((bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
1484 const char *, Elf_Internal_Sym
*, asection
**, bfd_vma
*,
1485 bfd_boolean
*, bfd_boolean
, bfd_boolean
));
1487 extern bfd_boolean _bfd_elf_export_symbol
1488 PARAMS ((struct elf_link_hash_entry
*, PTR
));
1490 extern bfd_boolean _bfd_elf_link_find_version_dependencies
1491 PARAMS ((struct elf_link_hash_entry
*, PTR
));
1493 extern bfd_boolean _bfd_elf_link_assign_sym_version
1494 PARAMS ((struct elf_link_hash_entry
*, PTR
));
1496 extern bfd_boolean _bfd_elf_link_record_dynamic_symbol
1497 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*));
1498 extern long _bfd_elf_link_lookup_local_dynindx
1499 PARAMS ((struct bfd_link_info
*, bfd
*, long));
1500 extern bfd_boolean _bfd_elf_compute_section_file_positions
1501 PARAMS ((bfd
*, struct bfd_link_info
*));
1502 extern void _bfd_elf_assign_file_positions_for_relocs
1504 extern file_ptr _bfd_elf_assign_file_position_for_section
1505 PARAMS ((Elf_Internal_Shdr
*, file_ptr
, bfd_boolean
));
1507 extern bfd_boolean _bfd_elf_validate_reloc
1508 PARAMS ((bfd
*, arelent
*));
1510 extern bfd_boolean _bfd_elf_link_create_dynamic_sections
1511 PARAMS ((bfd
*, struct bfd_link_info
*));
1512 extern bfd_boolean _bfd_elf_create_dynamic_sections
1513 PARAMS ((bfd
*, struct bfd_link_info
*));
1514 extern bfd_boolean _bfd_elf_create_got_section
1515 PARAMS ((bfd
*, struct bfd_link_info
*));
1516 extern unsigned long _bfd_elf_link_renumber_dynsyms
1517 PARAMS ((bfd
*, struct bfd_link_info
*));
1519 extern bfd_boolean _bfd_elfcore_make_pseudosection
1520 PARAMS ((bfd
*, char *, size_t, ufile_ptr
));
1521 extern char *_bfd_elfcore_strndup
1522 PARAMS ((bfd
*, char *, size_t));
1524 extern elf_linker_section_t
*_bfd_elf_create_linker_section
1525 PARAMS ((bfd
*, struct bfd_link_info
*, enum elf_linker_section_enum
,
1526 elf_linker_section_t
*));
1528 extern elf_linker_section_pointers_t
*_bfd_elf_find_pointer_linker_section
1529 PARAMS ((elf_linker_section_pointers_t
*, bfd_vma
,
1530 elf_linker_section_enum_t
));
1532 extern bfd_boolean bfd_elf32_create_pointer_linker_section
1533 PARAMS ((bfd
*, struct bfd_link_info
*, elf_linker_section_t
*,
1534 struct elf_link_hash_entry
*, const Elf_Internal_Rela
*));
1536 extern bfd_vma bfd_elf32_finish_pointer_linker_section
1537 PARAMS ((bfd
*, bfd
*, struct bfd_link_info
*, elf_linker_section_t
*,
1538 struct elf_link_hash_entry
*, bfd_vma
,
1539 const Elf_Internal_Rela
*, int));
1541 extern bfd_boolean bfd_elf64_create_pointer_linker_section
1542 PARAMS ((bfd
*, struct bfd_link_info
*, elf_linker_section_t
*,
1543 struct elf_link_hash_entry
*, const Elf_Internal_Rela
*));
1545 extern bfd_vma bfd_elf64_finish_pointer_linker_section
1546 PARAMS ((bfd
*, bfd
*, struct bfd_link_info
*, elf_linker_section_t
*,
1547 struct elf_link_hash_entry
*, bfd_vma
,
1548 const Elf_Internal_Rela
*, int));
1550 extern bfd_boolean _bfd_elf_make_linker_section_rela
1551 PARAMS ((bfd
*, elf_linker_section_t
*, int));
1553 extern Elf_Internal_Rela
*_bfd_elf_link_read_relocs
1554 PARAMS ((bfd
*, asection
*, PTR
, Elf_Internal_Rela
*, bfd_boolean
));
1556 extern bfd_boolean _bfd_elf_link_size_reloc_section
1557 PARAMS ((bfd
*, Elf_Internal_Shdr
*, asection
*));
1559 extern bfd_boolean _bfd_elf_link_output_relocs
1560 PARAMS ((bfd
*, asection
*, Elf_Internal_Shdr
*, Elf_Internal_Rela
*));
1562 extern bfd_boolean _bfd_elf_fix_symbol_flags
1563 PARAMS ((struct elf_link_hash_entry
*, struct elf_info_failed
*));
1565 extern bfd_boolean _bfd_elf_adjust_dynamic_symbol
1566 PARAMS ((struct elf_link_hash_entry
*, PTR
));
1568 extern bfd_boolean _bfd_elf_link_sec_merge_syms
1569 PARAMS ((struct elf_link_hash_entry
*, PTR
));
1571 extern const bfd_target
*bfd_elf32_object_p
1573 extern const bfd_target
*bfd_elf32_core_file_p
1575 extern char *bfd_elf32_core_file_failing_command
1577 extern int bfd_elf32_core_file_failing_signal
1579 extern bfd_boolean bfd_elf32_core_file_matches_executable_p
1580 PARAMS ((bfd
*, bfd
*));
1582 extern bfd_boolean bfd_elf32_bfd_link_add_symbols
1583 PARAMS ((bfd
*, struct bfd_link_info
*));
1584 extern bfd_boolean bfd_elf32_bfd_final_link
1585 PARAMS ((bfd
*, struct bfd_link_info
*));
1587 extern void bfd_elf32_swap_symbol_in
1588 PARAMS ((bfd
*, const PTR
, const PTR
, Elf_Internal_Sym
*));
1589 extern void bfd_elf32_swap_symbol_out
1590 PARAMS ((bfd
*, const Elf_Internal_Sym
*, PTR
, PTR
));
1591 extern void bfd_elf32_swap_reloc_in
1592 PARAMS ((bfd
*, const bfd_byte
*, Elf_Internal_Rela
*));
1593 extern void bfd_elf32_swap_reloc_out
1594 PARAMS ((bfd
*, const Elf_Internal_Rela
*, bfd_byte
*));
1595 extern void bfd_elf32_swap_reloca_in
1596 PARAMS ((bfd
*, const bfd_byte
*, Elf_Internal_Rela
*));
1597 extern void bfd_elf32_swap_reloca_out
1598 PARAMS ((bfd
*, const Elf_Internal_Rela
*, bfd_byte
*));
1599 extern void bfd_elf32_swap_phdr_in
1600 PARAMS ((bfd
*, const Elf32_External_Phdr
*, Elf_Internal_Phdr
*));
1601 extern void bfd_elf32_swap_phdr_out
1602 PARAMS ((bfd
*, const Elf_Internal_Phdr
*, Elf32_External_Phdr
*));
1603 extern void bfd_elf32_swap_dyn_in
1604 PARAMS ((bfd
*, const PTR
, Elf_Internal_Dyn
*));
1605 extern void bfd_elf32_swap_dyn_out
1606 PARAMS ((bfd
*, const Elf_Internal_Dyn
*, PTR
));
1607 extern long bfd_elf32_slurp_symbol_table
1608 PARAMS ((bfd
*, asymbol
**, bfd_boolean
));
1609 extern bfd_boolean bfd_elf32_write_shdrs_and_ehdr
1611 extern int bfd_elf32_write_out_phdrs
1612 PARAMS ((bfd
*, const Elf_Internal_Phdr
*, unsigned int));
1613 extern void bfd_elf32_write_relocs
1614 PARAMS ((bfd
*, asection
*, PTR
));
1615 extern bfd_boolean bfd_elf32_slurp_reloc_table
1616 PARAMS ((bfd
*, asection
*, asymbol
**, bfd_boolean
));
1617 extern bfd_boolean bfd_elf32_add_dynamic_entry
1618 PARAMS ((struct bfd_link_info
*, bfd_vma
, bfd_vma
));
1620 extern const bfd_target
*bfd_elf64_object_p
1622 extern const bfd_target
*bfd_elf64_core_file_p
1624 extern char *bfd_elf64_core_file_failing_command
1626 extern int bfd_elf64_core_file_failing_signal
1628 extern bfd_boolean bfd_elf64_core_file_matches_executable_p
1629 PARAMS ((bfd
*, bfd
*));
1630 extern bfd_boolean bfd_elf64_bfd_link_add_symbols
1631 PARAMS ((bfd
*, struct bfd_link_info
*));
1632 extern bfd_boolean bfd_elf64_bfd_final_link
1633 PARAMS ((bfd
*, struct bfd_link_info
*));
1635 extern void bfd_elf64_swap_symbol_in
1636 PARAMS ((bfd
*, const PTR
, const PTR
, Elf_Internal_Sym
*));
1637 extern void bfd_elf64_swap_symbol_out
1638 PARAMS ((bfd
*, const Elf_Internal_Sym
*, PTR
, PTR
));
1639 extern void bfd_elf64_swap_reloc_in
1640 PARAMS ((bfd
*, const bfd_byte
*, Elf_Internal_Rela
*));
1641 extern void bfd_elf64_swap_reloc_out
1642 PARAMS ((bfd
*, const Elf_Internal_Rela
*, bfd_byte
*));
1643 extern void bfd_elf64_swap_reloca_in
1644 PARAMS ((bfd
*, const bfd_byte
*, Elf_Internal_Rela
*));
1645 extern void bfd_elf64_swap_reloca_out
1646 PARAMS ((bfd
*, const Elf_Internal_Rela
*, bfd_byte
*));
1647 extern void bfd_elf64_swap_phdr_in
1648 PARAMS ((bfd
*, const Elf64_External_Phdr
*, Elf_Internal_Phdr
*));
1649 extern void bfd_elf64_swap_phdr_out
1650 PARAMS ((bfd
*, const Elf_Internal_Phdr
*, Elf64_External_Phdr
*));
1651 extern void bfd_elf64_swap_dyn_in
1652 PARAMS ((bfd
*, const PTR
, Elf_Internal_Dyn
*));
1653 extern void bfd_elf64_swap_dyn_out
1654 PARAMS ((bfd
*, const Elf_Internal_Dyn
*, PTR
));
1655 extern long bfd_elf64_slurp_symbol_table
1656 PARAMS ((bfd
*, asymbol
**, bfd_boolean
));
1657 extern bfd_boolean bfd_elf64_write_shdrs_and_ehdr
1659 extern int bfd_elf64_write_out_phdrs
1660 PARAMS ((bfd
*, const Elf_Internal_Phdr
*, unsigned int));
1661 extern void bfd_elf64_write_relocs
1662 PARAMS ((bfd
*, asection
*, PTR
));
1663 extern bfd_boolean bfd_elf64_slurp_reloc_table
1664 PARAMS ((bfd
*, asection
*, asymbol
**, bfd_boolean
));
1665 extern bfd_boolean bfd_elf64_add_dynamic_entry
1666 PARAMS ((struct bfd_link_info
*, bfd_vma
, bfd_vma
));
1668 #define bfd_elf32_link_record_dynamic_symbol \
1669 _bfd_elf_link_record_dynamic_symbol
1670 #define bfd_elf64_link_record_dynamic_symbol \
1671 _bfd_elf_link_record_dynamic_symbol
1673 extern int elf_link_record_local_dynamic_symbol
1674 PARAMS ((struct bfd_link_info
*, bfd
*, long));
1675 #define _bfd_elf32_link_record_local_dynamic_symbol \
1676 elf_link_record_local_dynamic_symbol
1677 #define _bfd_elf64_link_record_local_dynamic_symbol \
1678 elf_link_record_local_dynamic_symbol
1680 extern bfd_boolean _bfd_elf_close_and_cleanup
1682 extern bfd_reloc_status_type _bfd_elf_rel_vtable_reloc_fn
1683 PARAMS ((bfd
*, arelent
*, struct symbol_cache_entry
*, PTR
,
1684 asection
*, bfd
*, char **));
1686 extern bfd_boolean _bfd_elf32_gc_sections
1687 PARAMS ((bfd
*, struct bfd_link_info
*));
1688 extern bfd_boolean _bfd_elf32_gc_common_finalize_got_offsets
1689 PARAMS ((bfd
*, struct bfd_link_info
*));
1690 extern bfd_boolean _bfd_elf32_gc_common_final_link
1691 PARAMS ((bfd
*, struct bfd_link_info
*));
1692 extern bfd_boolean _bfd_elf32_gc_record_vtinherit
1693 PARAMS ((bfd
*, asection
*, struct elf_link_hash_entry
*, bfd_vma
));
1694 extern bfd_boolean _bfd_elf32_gc_record_vtentry
1695 PARAMS ((bfd
*, asection
*, struct elf_link_hash_entry
*, bfd_vma
));
1697 extern bfd_boolean _bfd_elf64_gc_sections
1698 PARAMS ((bfd
*, struct bfd_link_info
*));
1699 extern bfd_boolean _bfd_elf64_gc_common_finalize_got_offsets
1700 PARAMS ((bfd
*, struct bfd_link_info
*));
1701 extern bfd_boolean _bfd_elf64_gc_common_final_link
1702 PARAMS ((bfd
*, struct bfd_link_info
*));
1703 extern bfd_boolean _bfd_elf64_gc_record_vtinherit
1704 PARAMS ((bfd
*, asection
*, struct elf_link_hash_entry
*, bfd_vma
));
1705 extern bfd_boolean _bfd_elf64_gc_record_vtentry
1706 PARAMS ((bfd
*, asection
*, struct elf_link_hash_entry
*, bfd_vma
));
1708 extern bfd_boolean _bfd_elf32_reloc_symbol_deleted_p
1709 PARAMS ((bfd_vma
, PTR
));
1710 extern bfd_boolean _bfd_elf64_reloc_symbol_deleted_p
1711 PARAMS ((bfd_vma
, PTR
));
1713 /* Exported interface for writing elf corefile notes. */
1714 extern char *elfcore_write_note
1715 PARAMS ((bfd
*, char *, int *, const char *, int, const PTR
, int));
1716 extern char *elfcore_write_prpsinfo
1717 PARAMS ((bfd
*, char *, int *, const char *, const char *));
1718 extern char *elfcore_write_prstatus
1719 PARAMS ((bfd
*, char *, int *, long, int, const PTR
));
1720 extern char * elfcore_write_pstatus
1721 PARAMS ((bfd
*, char *, int *, long, int, const PTR
));
1722 extern char *elfcore_write_prfpreg
1723 PARAMS ((bfd
*, char *, int *, const PTR
, int));
1724 extern char *elfcore_write_prxfpreg
1725 PARAMS ((bfd
*, char *, int *, const PTR
, int));
1726 extern char *elfcore_write_lwpstatus
1727 PARAMS ((bfd
*, char *, int *, long, int, const PTR
));
1729 /* SH ELF specific routine. */
1731 extern bfd_boolean _sh_elf_set_mach_from_flags
1734 #endif /* _LIBELF_H_ */