1 // object.cc -- support for an object file for linking in gold
3 // Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
4 // Written by Ian Lance Taylor <iant@google.com>.
6 // This file is part of gold.
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 3 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., 51 Franklin Street - Fifth Floor, Boston,
21 // MA 02110-1301, USA.
29 #include "libiberty.h"
31 #include "target-select.h"
32 #include "dwarf_reader.h"
45 // Set the target based on fields in the ELF file header.
48 Object::set_target(int machine
, int size
, bool big_endian
, int osabi
,
51 Target
* target
= select_target(machine
, size
, big_endian
, osabi
, abiversion
);
53 gold_fatal(_("%s: unsupported ELF machine number %d"),
54 this->name().c_str(), machine
);
55 this->target_
= target
;
58 // Report an error for this object file. This is used by the
59 // elfcpp::Elf_file interface, and also called by the Object code
63 Object::error(const char* format
, ...) const
66 va_start(args
, format
);
68 if (vasprintf(&buf
, format
, args
) < 0)
71 gold_error(_("%s: %s"), this->name().c_str(), buf
);
75 // Return a view of the contents of a section.
78 Object::section_contents(unsigned int shndx
, section_size_type
* plen
,
81 Location
loc(this->do_section_contents(shndx
));
82 *plen
= convert_to_section_size_type(loc
.data_size
);
83 return this->get_view(loc
.file_offset
, *plen
, true, cache
);
86 // Read the section data into SD. This is code common to Sized_relobj
87 // and Sized_dynobj, so we put it into Object.
89 template<int size
, bool big_endian
>
91 Object::read_section_data(elfcpp::Elf_file
<size
, big_endian
, Object
>* elf_file
,
92 Read_symbols_data
* sd
)
94 const int shdr_size
= elfcpp::Elf_sizes
<size
>::shdr_size
;
96 // Read the section headers.
97 const off_t shoff
= elf_file
->shoff();
98 const unsigned int shnum
= this->shnum();
99 sd
->section_headers
= this->get_lasting_view(shoff
, shnum
* shdr_size
,
102 // Read the section names.
103 const unsigned char* pshdrs
= sd
->section_headers
->data();
104 const unsigned char* pshdrnames
= pshdrs
+ elf_file
->shstrndx() * shdr_size
;
105 typename
elfcpp::Shdr
<size
, big_endian
> shdrnames(pshdrnames
);
107 if (shdrnames
.get_sh_type() != elfcpp::SHT_STRTAB
)
108 this->error(_("section name section has wrong type: %u"),
109 static_cast<unsigned int>(shdrnames
.get_sh_type()));
111 sd
->section_names_size
=
112 convert_to_section_size_type(shdrnames
.get_sh_size());
113 sd
->section_names
= this->get_lasting_view(shdrnames
.get_sh_offset(),
114 sd
->section_names_size
, false,
118 // If NAME is the name of a special .gnu.warning section, arrange for
119 // the warning to be issued. SHNDX is the section index. Return
120 // whether it is a warning section.
123 Object::handle_gnu_warning_section(const char* name
, unsigned int shndx
,
124 Symbol_table
* symtab
)
126 const char warn_prefix
[] = ".gnu.warning.";
127 const int warn_prefix_len
= sizeof warn_prefix
- 1;
128 if (strncmp(name
, warn_prefix
, warn_prefix_len
) == 0)
130 // Read the section contents to get the warning text. It would
131 // be nicer if we only did this if we have to actually issue a
132 // warning. Unfortunately, warnings are issued as we relocate
133 // sections. That means that we can not lock the object then,
134 // as we might try to issue the same warning multiple times
136 section_size_type len
;
137 const unsigned char* contents
= this->section_contents(shndx
, &len
,
139 std::string
warning(reinterpret_cast<const char*>(contents
), len
);
140 symtab
->add_warning(name
+ warn_prefix_len
, this, warning
);
146 // Class Sized_relobj.
148 template<int size
, bool big_endian
>
149 Sized_relobj
<size
, big_endian
>::Sized_relobj(
150 const std::string
& name
,
151 Input_file
* input_file
,
153 const elfcpp::Ehdr
<size
, big_endian
>& ehdr
)
154 : Relobj(name
, input_file
, offset
),
155 elf_file_(this, ehdr
),
157 local_symbol_count_(0),
158 output_local_symbol_count_(0),
159 output_local_dynsym_count_(0),
161 local_symbol_offset_(0),
162 local_dynsym_offset_(0),
164 local_got_offsets_(),
169 template<int size
, bool big_endian
>
170 Sized_relobj
<size
, big_endian
>::~Sized_relobj()
174 // Set up an object file based on the file header. This sets up the
175 // target and reads the section information.
177 template<int size
, bool big_endian
>
179 Sized_relobj
<size
, big_endian
>::setup(
180 const elfcpp::Ehdr
<size
, big_endian
>& ehdr
)
182 this->set_target(ehdr
.get_e_machine(), size
, big_endian
,
183 ehdr
.get_e_ident()[elfcpp::EI_OSABI
],
184 ehdr
.get_e_ident()[elfcpp::EI_ABIVERSION
]);
186 const unsigned int shnum
= this->elf_file_
.shnum();
187 this->set_shnum(shnum
);
190 // Find the SHT_SYMTAB section, given the section headers. The ELF
191 // standard says that maybe in the future there can be more than one
192 // SHT_SYMTAB section. Until somebody figures out how that could
193 // work, we assume there is only one.
195 template<int size
, bool big_endian
>
197 Sized_relobj
<size
, big_endian
>::find_symtab(const unsigned char* pshdrs
)
199 const unsigned int shnum
= this->shnum();
200 this->symtab_shndx_
= 0;
203 // Look through the sections in reverse order, since gas tends
204 // to put the symbol table at the end.
205 const unsigned char* p
= pshdrs
+ shnum
* This::shdr_size
;
206 unsigned int i
= shnum
;
210 p
-= This::shdr_size
;
211 typename
This::Shdr
shdr(p
);
212 if (shdr
.get_sh_type() == elfcpp::SHT_SYMTAB
)
214 this->symtab_shndx_
= i
;
221 // Return whether SHDR has the right type and flags to be a GNU
222 // .eh_frame section.
224 template<int size
, bool big_endian
>
226 Sized_relobj
<size
, big_endian
>::check_eh_frame_flags(
227 const elfcpp::Shdr
<size
, big_endian
>* shdr
) const
229 return (shdr
->get_sh_size() > 0
230 && shdr
->get_sh_type() == elfcpp::SHT_PROGBITS
231 && (shdr
->get_sh_flags() & elfcpp::SHF_ALLOC
) != 0);
234 // Return whether there is a GNU .eh_frame section, given the section
235 // headers and the section names.
237 template<int size
, bool big_endian
>
239 Sized_relobj
<size
, big_endian
>::find_eh_frame(
240 const unsigned char* pshdrs
,
242 section_size_type names_size
) const
244 const unsigned int shnum
= this->shnum();
245 const unsigned char* p
= pshdrs
+ This::shdr_size
;
246 for (unsigned int i
= 1; i
< shnum
; ++i
, p
+= This::shdr_size
)
248 typename
This::Shdr
shdr(p
);
249 if (this->check_eh_frame_flags(&shdr
))
251 if (shdr
.get_sh_name() >= names_size
)
253 this->error(_("bad section name offset for section %u: %lu"),
254 i
, static_cast<unsigned long>(shdr
.get_sh_name()));
258 const char* name
= names
+ shdr
.get_sh_name();
259 if (strcmp(name
, ".eh_frame") == 0)
266 // Read the sections and symbols from an object file.
268 template<int size
, bool big_endian
>
270 Sized_relobj
<size
, big_endian
>::do_read_symbols(Read_symbols_data
* sd
)
272 this->read_section_data(&this->elf_file_
, sd
);
274 const unsigned char* const pshdrs
= sd
->section_headers
->data();
276 this->find_symtab(pshdrs
);
278 const unsigned char* namesu
= sd
->section_names
->data();
279 const char* names
= reinterpret_cast<const char*>(namesu
);
280 if (memmem(names
, sd
->section_names_size
, ".eh_frame", 10) != NULL
)
282 if (this->find_eh_frame(pshdrs
, names
, sd
->section_names_size
))
283 this->has_eh_frame_
= true;
287 sd
->symbols_size
= 0;
288 sd
->external_symbols_offset
= 0;
289 sd
->symbol_names
= NULL
;
290 sd
->symbol_names_size
= 0;
292 if (this->symtab_shndx_
== 0)
294 // No symbol table. Weird but legal.
298 // Get the symbol table section header.
299 typename
This::Shdr
symtabshdr(pshdrs
300 + this->symtab_shndx_
* This::shdr_size
);
301 gold_assert(symtabshdr
.get_sh_type() == elfcpp::SHT_SYMTAB
);
303 // If this object has a .eh_frame section, we need all the symbols.
304 // Otherwise we only need the external symbols. While it would be
305 // simpler to just always read all the symbols, I've seen object
306 // files with well over 2000 local symbols, which for a 64-bit
307 // object file format is over 5 pages that we don't need to read
310 const int sym_size
= This::sym_size
;
311 const unsigned int loccount
= symtabshdr
.get_sh_info();
312 this->local_symbol_count_
= loccount
;
313 this->local_values_
.resize(loccount
);
314 section_offset_type locsize
= loccount
* sym_size
;
315 off_t dataoff
= symtabshdr
.get_sh_offset();
316 section_size_type datasize
=
317 convert_to_section_size_type(symtabshdr
.get_sh_size());
318 off_t extoff
= dataoff
+ locsize
;
319 section_size_type extsize
= datasize
- locsize
;
321 off_t readoff
= this->has_eh_frame_
? dataoff
: extoff
;
322 section_size_type readsize
= this->has_eh_frame_
? datasize
: extsize
;
324 File_view
* fvsymtab
= this->get_lasting_view(readoff
, readsize
, true, false);
326 // Read the section header for the symbol names.
327 unsigned int strtab_shndx
= symtabshdr
.get_sh_link();
328 if (strtab_shndx
>= this->shnum())
330 this->error(_("invalid symbol table name index: %u"), strtab_shndx
);
333 typename
This::Shdr
strtabshdr(pshdrs
+ strtab_shndx
* This::shdr_size
);
334 if (strtabshdr
.get_sh_type() != elfcpp::SHT_STRTAB
)
336 this->error(_("symbol table name section has wrong type: %u"),
337 static_cast<unsigned int>(strtabshdr
.get_sh_type()));
341 // Read the symbol names.
342 File_view
* fvstrtab
= this->get_lasting_view(strtabshdr
.get_sh_offset(),
343 strtabshdr
.get_sh_size(),
346 sd
->symbols
= fvsymtab
;
347 sd
->symbols_size
= readsize
;
348 sd
->external_symbols_offset
= this->has_eh_frame_
? locsize
: 0;
349 sd
->symbol_names
= fvstrtab
;
350 sd
->symbol_names_size
=
351 convert_to_section_size_type(strtabshdr
.get_sh_size());
354 // Return the section index of symbol SYM. Set *VALUE to its value in
355 // the object file. Note that for a symbol which is not defined in
356 // this object file, this will set *VALUE to 0 and return SHN_UNDEF;
357 // it will not return the final value of the symbol in the link.
359 template<int size
, bool big_endian
>
361 Sized_relobj
<size
, big_endian
>::symbol_section_and_value(unsigned int sym
,
364 section_size_type symbols_size
;
365 const unsigned char* symbols
= this->section_contents(this->symtab_shndx_
,
369 const size_t count
= symbols_size
/ This::sym_size
;
370 gold_assert(sym
< count
);
372 elfcpp::Sym
<size
, big_endian
> elfsym(symbols
+ sym
* This::sym_size
);
373 *value
= elfsym
.get_st_value();
374 // FIXME: Handle SHN_XINDEX.
375 return elfsym
.get_st_shndx();
378 // Return whether to include a section group in the link. LAYOUT is
379 // used to keep track of which section groups we have already seen.
380 // INDEX is the index of the section group and SHDR is the section
381 // header. If we do not want to include this group, we set bits in
382 // OMIT for each section which should be discarded.
384 template<int size
, bool big_endian
>
386 Sized_relobj
<size
, big_endian
>::include_section_group(
387 Symbol_table
* symtab
,
391 const elfcpp::Shdr
<size
, big_endian
>& shdr
,
392 std::vector
<bool>* omit
)
394 // Read the section contents.
395 const unsigned char* pcon
= this->get_view(shdr
.get_sh_offset(),
396 shdr
.get_sh_size(), true, false);
397 const elfcpp::Elf_Word
* pword
=
398 reinterpret_cast<const elfcpp::Elf_Word
*>(pcon
);
400 // The first word contains flags. We only care about COMDAT section
401 // groups. Other section groups are always included in the link
402 // just like ordinary sections.
403 elfcpp::Elf_Word flags
= elfcpp::Swap
<32, big_endian
>::readval(pword
);
405 // Look up the group signature, which is the name of a symbol. This
406 // is a lot of effort to go to to read a string. Why didn't they
407 // just have the group signature point into the string table, rather
408 // than indirect through a symbol?
410 // Get the appropriate symbol table header (this will normally be
411 // the single SHT_SYMTAB section, but in principle it need not be).
412 const unsigned int link
= shdr
.get_sh_link();
413 typename
This::Shdr
symshdr(this, this->elf_file_
.section_header(link
));
415 // Read the symbol table entry.
416 if (shdr
.get_sh_info() >= symshdr
.get_sh_size() / This::sym_size
)
418 this->error(_("section group %u info %u out of range"),
419 index
, shdr
.get_sh_info());
422 off_t symoff
= symshdr
.get_sh_offset() + shdr
.get_sh_info() * This::sym_size
;
423 const unsigned char* psym
= this->get_view(symoff
, This::sym_size
, true,
425 elfcpp::Sym
<size
, big_endian
> sym(psym
);
427 // Read the symbol table names.
428 section_size_type symnamelen
;
429 const unsigned char* psymnamesu
;
430 psymnamesu
= this->section_contents(symshdr
.get_sh_link(), &symnamelen
,
432 const char* psymnames
= reinterpret_cast<const char*>(psymnamesu
);
434 // Get the section group signature.
435 if (sym
.get_st_name() >= symnamelen
)
437 this->error(_("symbol %u name offset %u out of range"),
438 shdr
.get_sh_info(), sym
.get_st_name());
442 const char* signature
= psymnames
+ sym
.get_st_name();
444 // It seems that some versions of gas will create a section group
445 // associated with a section symbol, and then fail to give a name to
446 // the section symbol. In such a case, use the name of the section.
449 if (signature
[0] == '\0' && sym
.get_st_type() == elfcpp::STT_SECTION
)
451 secname
= this->section_name(sym
.get_st_shndx());
452 signature
= secname
.c_str();
455 // Record this section group, and see whether we've already seen one
456 // with the same signature.
458 if ((flags
& elfcpp::GRP_COMDAT
) == 0
459 || layout
->add_comdat(signature
, true))
461 if (parameters
->options().relocatable())
462 layout
->layout_group(symtab
, this, index
, name
, signature
, shdr
,
467 // This is a duplicate. We want to discard the sections in this
469 size_t count
= shdr
.get_sh_size() / sizeof(elfcpp::Elf_Word
);
470 for (size_t i
= 1; i
< count
; ++i
)
472 elfcpp::Elf_Word secnum
=
473 elfcpp::Swap
<32, big_endian
>::readval(pword
+ i
);
474 if (secnum
>= this->shnum())
476 this->error(_("section %u in section group %u out of range"),
480 (*omit
)[secnum
] = true;
486 // Whether to include a linkonce section in the link. NAME is the
487 // name of the section and SHDR is the section header.
489 // Linkonce sections are a GNU extension implemented in the original
490 // GNU linker before section groups were defined. The semantics are
491 // that we only include one linkonce section with a given name. The
492 // name of a linkonce section is normally .gnu.linkonce.T.SYMNAME,
493 // where T is the type of section and SYMNAME is the name of a symbol.
494 // In an attempt to make linkonce sections interact well with section
495 // groups, we try to identify SYMNAME and use it like a section group
496 // signature. We want to block section groups with that signature,
497 // but not other linkonce sections with that signature. We also use
498 // the full name of the linkonce section as a normal section group
501 template<int size
, bool big_endian
>
503 Sized_relobj
<size
, big_endian
>::include_linkonce_section(
506 const elfcpp::Shdr
<size
, big_endian
>&)
508 // In general the symbol name we want will be the string following
509 // the last '.'. However, we have to handle the case of
510 // .gnu.linkonce.t.__i686.get_pc_thunk.bx, which was generated by
511 // some versions of gcc. So we use a heuristic: if the name starts
512 // with ".gnu.linkonce.t.", we use everything after that. Otherwise
513 // we look for the last '.'. We can't always simply skip
514 // ".gnu.linkonce.X", because we have to deal with cases like
515 // ".gnu.linkonce.d.rel.ro.local".
516 const char* const linkonce_t
= ".gnu.linkonce.t.";
518 if (strncmp(name
, linkonce_t
, strlen(linkonce_t
)) == 0)
519 symname
= name
+ strlen(linkonce_t
);
521 symname
= strrchr(name
, '.') + 1;
522 bool include1
= layout
->add_comdat(symname
, false);
523 bool include2
= layout
->add_comdat(name
, true);
524 return include1
&& include2
;
527 // Lay out the input sections. We walk through the sections and check
528 // whether they should be included in the link. If they should, we
529 // pass them to the Layout object, which will return an output section
532 template<int size
, bool big_endian
>
534 Sized_relobj
<size
, big_endian
>::do_layout(Symbol_table
* symtab
,
536 Read_symbols_data
* sd
)
538 const unsigned int shnum
= this->shnum();
542 // Get the section headers.
543 const unsigned char* pshdrs
= sd
->section_headers
->data();
545 // Get the section names.
546 const unsigned char* pnamesu
= sd
->section_names
->data();
547 const char* pnames
= reinterpret_cast<const char*>(pnamesu
);
549 // For each section, record the index of the reloc section if any.
550 // Use 0 to mean that there is no reloc section, -1U to mean that
551 // there is more than one.
552 std::vector
<unsigned int> reloc_shndx(shnum
, 0);
553 std::vector
<unsigned int> reloc_type(shnum
, elfcpp::SHT_NULL
);
554 // Skip the first, dummy, section.
555 pshdrs
+= This::shdr_size
;
556 for (unsigned int i
= 1; i
< shnum
; ++i
, pshdrs
+= This::shdr_size
)
558 typename
This::Shdr
shdr(pshdrs
);
560 unsigned int sh_type
= shdr
.get_sh_type();
561 if (sh_type
== elfcpp::SHT_REL
|| sh_type
== elfcpp::SHT_RELA
)
563 unsigned int target_shndx
= shdr
.get_sh_info();
564 if (target_shndx
== 0 || target_shndx
>= shnum
)
566 this->error(_("relocation section %u has bad info %u"),
571 if (reloc_shndx
[target_shndx
] != 0)
572 reloc_shndx
[target_shndx
] = -1U;
575 reloc_shndx
[target_shndx
] = i
;
576 reloc_type
[target_shndx
] = sh_type
;
581 std::vector
<Map_to_output
>& map_sections(this->map_to_output());
582 map_sections
.resize(shnum
);
584 // If we are only linking for symbols, then there is nothing else to
586 if (this->input_file()->just_symbols())
588 delete sd
->section_headers
;
589 sd
->section_headers
= NULL
;
590 delete sd
->section_names
;
591 sd
->section_names
= NULL
;
595 // Whether we've seen a .note.GNU-stack section.
596 bool seen_gnu_stack
= false;
597 // The flags of a .note.GNU-stack section.
598 uint64_t gnu_stack_flags
= 0;
600 // Keep track of which sections to omit.
601 std::vector
<bool> omit(shnum
, false);
603 // Keep track of reloc sections when emitting relocations.
604 const bool relocatable
= parameters
->options().relocatable();
605 const bool emit_relocs
= (relocatable
606 || parameters
->options().emit_relocs());
607 std::vector
<unsigned int> reloc_sections
;
609 // Keep track of .eh_frame sections.
610 std::vector
<unsigned int> eh_frame_sections
;
612 // Skip the first, dummy, section.
613 pshdrs
= sd
->section_headers
->data() + This::shdr_size
;
614 for (unsigned int i
= 1; i
< shnum
; ++i
, pshdrs
+= This::shdr_size
)
616 typename
This::Shdr
shdr(pshdrs
);
618 if (shdr
.get_sh_name() >= sd
->section_names_size
)
620 this->error(_("bad section name offset for section %u: %lu"),
621 i
, static_cast<unsigned long>(shdr
.get_sh_name()));
625 const char* name
= pnames
+ shdr
.get_sh_name();
627 if (this->handle_gnu_warning_section(name
, i
, symtab
))
633 // The .note.GNU-stack section is special. It gives the
634 // protection flags that this object file requires for the stack
636 if (strcmp(name
, ".note.GNU-stack") == 0)
638 seen_gnu_stack
= true;
639 gnu_stack_flags
|= shdr
.get_sh_flags();
643 bool discard
= omit
[i
];
646 if (shdr
.get_sh_type() == elfcpp::SHT_GROUP
)
648 if (!this->include_section_group(symtab
, layout
, i
, name
, shdr
,
652 else if ((shdr
.get_sh_flags() & elfcpp::SHF_GROUP
) == 0
653 && Layout::is_linkonce(name
))
655 if (!this->include_linkonce_section(layout
, name
, shdr
))
662 // Do not include this section in the link.
663 map_sections
[i
].output_section
= NULL
;
667 // When doing a relocatable link we are going to copy input
668 // reloc sections into the output. We only want to copy the
669 // ones associated with sections which are not being discarded.
670 // However, we don't know that yet for all sections. So save
671 // reloc sections and process them later.
673 && (shdr
.get_sh_type() == elfcpp::SHT_REL
674 || shdr
.get_sh_type() == elfcpp::SHT_RELA
))
676 reloc_sections
.push_back(i
);
680 if (relocatable
&& shdr
.get_sh_type() == elfcpp::SHT_GROUP
)
683 // The .eh_frame section is special. It holds exception frame
684 // information that we need to read in order to generate the
685 // exception frame header. We process these after all the other
686 // sections so that the exception frame reader can reliably
687 // determine which sections are being discarded, and discard the
688 // corresponding information.
690 && strcmp(name
, ".eh_frame") == 0
691 && this->check_eh_frame_flags(&shdr
))
693 eh_frame_sections
.push_back(i
);
698 Output_section
* os
= layout
->layout(this, i
, name
, shdr
,
699 reloc_shndx
[i
], reloc_type
[i
],
702 map_sections
[i
].output_section
= os
;
703 map_sections
[i
].offset
= offset
;
705 // If this section requires special handling, and if there are
706 // relocs that apply to it, then we must do the special handling
707 // before we apply the relocs.
708 if (offset
== -1 && reloc_shndx
[i
] != 0)
709 this->set_relocs_must_follow_section_writes();
712 layout
->layout_gnu_stack(seen_gnu_stack
, gnu_stack_flags
);
714 // When doing a relocatable link handle the reloc sections at the
717 this->size_relocatable_relocs();
718 for (std::vector
<unsigned int>::const_iterator p
= reloc_sections
.begin();
719 p
!= reloc_sections
.end();
723 const unsigned char* pshdr
;
724 pshdr
= sd
->section_headers
->data() + i
* This::shdr_size
;
725 typename
This::Shdr
shdr(pshdr
);
727 unsigned int data_shndx
= shdr
.get_sh_info();
728 if (data_shndx
>= shnum
)
730 // We already warned about this above.
734 Output_section
* data_section
= map_sections
[data_shndx
].output_section
;
735 if (data_section
== NULL
)
737 map_sections
[i
].output_section
= NULL
;
741 Relocatable_relocs
* rr
= new Relocatable_relocs();
742 this->set_relocatable_relocs(i
, rr
);
744 Output_section
* os
= layout
->layout_reloc(this, i
, shdr
, data_section
,
746 map_sections
[i
].output_section
= os
;
747 map_sections
[i
].offset
= -1;
750 // Handle the .eh_frame sections at the end.
751 for (std::vector
<unsigned int>::const_iterator p
= eh_frame_sections
.begin();
752 p
!= eh_frame_sections
.end();
755 gold_assert(this->has_eh_frame_
);
756 gold_assert(sd
->external_symbols_offset
!= 0);
759 const unsigned char *pshdr
;
760 pshdr
= sd
->section_headers
->data() + i
* This::shdr_size
;
761 typename
This::Shdr
shdr(pshdr
);
764 Output_section
* os
= layout
->layout_eh_frame(this,
767 sd
->symbol_names
->data(),
768 sd
->symbol_names_size
,
773 map_sections
[i
].output_section
= os
;
774 map_sections
[i
].offset
= offset
;
776 // If this section requires special handling, and if there are
777 // relocs that apply to it, then we must do the special handling
778 // before we apply the relocs.
779 if (offset
== -1 && reloc_shndx
[i
] != 0)
780 this->set_relocs_must_follow_section_writes();
783 delete sd
->section_headers
;
784 sd
->section_headers
= NULL
;
785 delete sd
->section_names
;
786 sd
->section_names
= NULL
;
789 // Add the symbols to the symbol table.
791 template<int size
, bool big_endian
>
793 Sized_relobj
<size
, big_endian
>::do_add_symbols(Symbol_table
* symtab
,
794 Read_symbols_data
* sd
)
796 if (sd
->symbols
== NULL
)
798 gold_assert(sd
->symbol_names
== NULL
);
802 const int sym_size
= This::sym_size
;
803 size_t symcount
= ((sd
->symbols_size
- sd
->external_symbols_offset
)
805 if (symcount
* sym_size
!= sd
->symbols_size
- sd
->external_symbols_offset
)
807 this->error(_("size of symbols is not multiple of symbol size"));
811 this->symbols_
.resize(symcount
);
813 const char* sym_names
=
814 reinterpret_cast<const char*>(sd
->symbol_names
->data());
815 symtab
->add_from_relobj(this,
816 sd
->symbols
->data() + sd
->external_symbols_offset
,
817 symcount
, sym_names
, sd
->symbol_names_size
,
822 delete sd
->symbol_names
;
823 sd
->symbol_names
= NULL
;
826 // First pass over the local symbols. Here we add their names to
827 // *POOL and *DYNPOOL, and we store the symbol value in
828 // THIS->LOCAL_VALUES_. This function is always called from a
829 // singleton thread. This is followed by a call to
830 // finalize_local_symbols.
832 template<int size
, bool big_endian
>
834 Sized_relobj
<size
, big_endian
>::do_count_local_symbols(Stringpool
* pool
,
837 gold_assert(this->symtab_shndx_
!= -1U);
838 if (this->symtab_shndx_
== 0)
840 // This object has no symbols. Weird but legal.
844 // Read the symbol table section header.
845 const unsigned int symtab_shndx
= this->symtab_shndx_
;
846 typename
This::Shdr
symtabshdr(this,
847 this->elf_file_
.section_header(symtab_shndx
));
848 gold_assert(symtabshdr
.get_sh_type() == elfcpp::SHT_SYMTAB
);
850 // Read the local symbols.
851 const int sym_size
= This::sym_size
;
852 const unsigned int loccount
= this->local_symbol_count_
;
853 gold_assert(loccount
== symtabshdr
.get_sh_info());
854 off_t locsize
= loccount
* sym_size
;
855 const unsigned char* psyms
= this->get_view(symtabshdr
.get_sh_offset(),
856 locsize
, true, true);
858 // Read the symbol names.
859 const unsigned int strtab_shndx
= symtabshdr
.get_sh_link();
860 section_size_type strtab_size
;
861 const unsigned char* pnamesu
= this->section_contents(strtab_shndx
,
864 const char* pnames
= reinterpret_cast<const char*>(pnamesu
);
866 // Loop over the local symbols.
868 const std::vector
<Map_to_output
>& mo(this->map_to_output());
869 unsigned int shnum
= this->shnum();
870 unsigned int count
= 0;
871 unsigned int dyncount
= 0;
872 // Skip the first, dummy, symbol.
874 for (unsigned int i
= 1; i
< loccount
; ++i
, psyms
+= sym_size
)
876 elfcpp::Sym
<size
, big_endian
> sym(psyms
);
878 Symbol_value
<size
>& lv(this->local_values_
[i
]);
880 unsigned int shndx
= sym
.get_st_shndx();
881 lv
.set_input_shndx(shndx
);
883 if (sym
.get_st_type() == elfcpp::STT_SECTION
)
884 lv
.set_is_section_symbol();
885 else if (sym
.get_st_type() == elfcpp::STT_TLS
)
886 lv
.set_is_tls_symbol();
888 // Save the input symbol value for use in do_finalize_local_symbols().
889 lv
.set_input_value(sym
.get_st_value());
891 // Decide whether this symbol should go into the output file.
893 if (shndx
< shnum
&& mo
[shndx
].output_section
== NULL
)
895 lv
.set_no_output_symtab_entry();
896 gold_assert(!lv
.needs_output_dynsym_entry());
900 if (sym
.get_st_type() == elfcpp::STT_SECTION
)
902 lv
.set_no_output_symtab_entry();
903 gold_assert(!lv
.needs_output_dynsym_entry());
907 if (sym
.get_st_name() >= strtab_size
)
909 this->error(_("local symbol %u section name out of range: %u >= %u"),
910 i
, sym
.get_st_name(),
911 static_cast<unsigned int>(strtab_size
));
912 lv
.set_no_output_symtab_entry();
916 // Add the symbol to the symbol table string pool.
917 const char* name
= pnames
+ sym
.get_st_name();
918 pool
->add(name
, true, NULL
);
921 // If needed, add the symbol to the dynamic symbol table string pool.
922 if (lv
.needs_output_dynsym_entry())
924 dynpool
->add(name
, true, NULL
);
929 this->output_local_symbol_count_
= count
;
930 this->output_local_dynsym_count_
= dyncount
;
933 // Finalize the local symbols. Here we set the final value in
934 // THIS->LOCAL_VALUES_ and set their output symbol table indexes.
935 // This function is always called from a singleton thread. The actual
936 // output of the local symbols will occur in a separate task.
938 template<int size
, bool big_endian
>
940 Sized_relobj
<size
, big_endian
>::do_finalize_local_symbols(unsigned int index
,
943 gold_assert(off
== static_cast<off_t
>(align_address(off
, size
>> 3)));
945 const unsigned int loccount
= this->local_symbol_count_
;
946 this->local_symbol_offset_
= off
;
948 const std::vector
<Map_to_output
>& mo(this->map_to_output());
949 unsigned int shnum
= this->shnum();
951 for (unsigned int i
= 1; i
< loccount
; ++i
)
953 Symbol_value
<size
>& lv(this->local_values_
[i
]);
955 unsigned int shndx
= lv
.input_shndx();
957 // Set the output symbol value.
959 if (shndx
>= elfcpp::SHN_LORESERVE
)
961 if (shndx
== elfcpp::SHN_ABS
|| shndx
== elfcpp::SHN_COMMON
)
962 lv
.set_output_value(lv
.input_value());
965 // FIXME: Handle SHN_XINDEX.
966 this->error(_("unknown section index %u for local symbol %u"),
968 lv
.set_output_value(0);
975 this->error(_("local symbol %u section index %u out of range"),
980 Output_section
* os
= mo
[shndx
].output_section
;
984 lv
.set_output_value(0);
987 else if (mo
[shndx
].offset
== -1)
989 // This is a SHF_MERGE section or one which otherwise
990 // requires special handling. We get the output address
991 // of the start of the merged section. If this is not a
992 // section symbol, we can then determine the final
993 // value. If it is a section symbol, we can not, as in
994 // that case we have to consider the addend to determine
995 // the value to use in a relocation.
996 if (!lv
.is_section_symbol())
997 lv
.set_output_value(os
->output_address(this, shndx
,
1001 section_offset_type start
=
1002 os
->starting_output_address(this, shndx
);
1003 Merged_symbol_value
<size
>* msv
=
1004 new Merged_symbol_value
<size
>(lv
.input_value(), start
);
1005 lv
.set_merged_symbol_value(msv
);
1008 else if (lv
.is_tls_symbol())
1009 lv
.set_output_value(os
->tls_offset()
1011 + lv
.input_value());
1013 lv
.set_output_value(os
->address()
1015 + lv
.input_value());
1018 if (lv
.needs_output_symtab_entry())
1020 lv
.set_output_symtab_index(index
);
1027 // Set the output dynamic symbol table indexes for the local variables.
1029 template<int size
, bool big_endian
>
1031 Sized_relobj
<size
, big_endian
>::do_set_local_dynsym_indexes(unsigned int index
)
1033 const unsigned int loccount
= this->local_symbol_count_
;
1034 for (unsigned int i
= 1; i
< loccount
; ++i
)
1036 Symbol_value
<size
>& lv(this->local_values_
[i
]);
1037 if (lv
.needs_output_dynsym_entry())
1039 lv
.set_output_dynsym_index(index
);
1046 // Set the offset where local dynamic symbol information will be stored.
1047 // Returns the count of local symbols contributed to the symbol table by
1050 template<int size
, bool big_endian
>
1052 Sized_relobj
<size
, big_endian
>::do_set_local_dynsym_offset(off_t off
)
1054 gold_assert(off
== static_cast<off_t
>(align_address(off
, size
>> 3)));
1055 this->local_dynsym_offset_
= off
;
1056 return this->output_local_dynsym_count_
;
1059 // Write out the local symbols.
1061 template<int size
, bool big_endian
>
1063 Sized_relobj
<size
, big_endian
>::write_local_symbols(
1065 const Stringpool
* sympool
,
1066 const Stringpool
* dynpool
)
1068 if (parameters
->options().strip_all()
1069 && this->output_local_dynsym_count_
== 0)
1072 gold_assert(this->symtab_shndx_
!= -1U);
1073 if (this->symtab_shndx_
== 0)
1075 // This object has no symbols. Weird but legal.
1079 // Read the symbol table section header.
1080 const unsigned int symtab_shndx
= this->symtab_shndx_
;
1081 typename
This::Shdr
symtabshdr(this,
1082 this->elf_file_
.section_header(symtab_shndx
));
1083 gold_assert(symtabshdr
.get_sh_type() == elfcpp::SHT_SYMTAB
);
1084 const unsigned int loccount
= this->local_symbol_count_
;
1085 gold_assert(loccount
== symtabshdr
.get_sh_info());
1087 // Read the local symbols.
1088 const int sym_size
= This::sym_size
;
1089 off_t locsize
= loccount
* sym_size
;
1090 const unsigned char* psyms
= this->get_view(symtabshdr
.get_sh_offset(),
1091 locsize
, true, false);
1093 // Read the symbol names.
1094 const unsigned int strtab_shndx
= symtabshdr
.get_sh_link();
1095 section_size_type strtab_size
;
1096 const unsigned char* pnamesu
= this->section_contents(strtab_shndx
,
1099 const char* pnames
= reinterpret_cast<const char*>(pnamesu
);
1101 // Get views into the output file for the portions of the symbol table
1102 // and the dynamic symbol table that we will be writing.
1103 off_t output_size
= this->output_local_symbol_count_
* sym_size
;
1104 unsigned char* oview
= NULL
;
1105 if (output_size
> 0)
1106 oview
= of
->get_output_view(this->local_symbol_offset_
, output_size
);
1108 off_t dyn_output_size
= this->output_local_dynsym_count_
* sym_size
;
1109 unsigned char* dyn_oview
= NULL
;
1110 if (dyn_output_size
> 0)
1111 dyn_oview
= of
->get_output_view(this->local_dynsym_offset_
,
1114 const std::vector
<Map_to_output
>& mo(this->map_to_output());
1116 gold_assert(this->local_values_
.size() == loccount
);
1118 unsigned char* ov
= oview
;
1119 unsigned char* dyn_ov
= dyn_oview
;
1121 for (unsigned int i
= 1; i
< loccount
; ++i
, psyms
+= sym_size
)
1123 elfcpp::Sym
<size
, big_endian
> isym(psyms
);
1125 unsigned int st_shndx
= isym
.get_st_shndx();
1126 if (st_shndx
< elfcpp::SHN_LORESERVE
)
1128 gold_assert(st_shndx
< mo
.size());
1129 if (mo
[st_shndx
].output_section
== NULL
)
1131 st_shndx
= mo
[st_shndx
].output_section
->out_shndx();
1134 // Write the symbol to the output symbol table.
1135 if (!parameters
->options().strip_all()
1136 && this->local_values_
[i
].needs_output_symtab_entry())
1138 elfcpp::Sym_write
<size
, big_endian
> osym(ov
);
1140 gold_assert(isym
.get_st_name() < strtab_size
);
1141 const char* name
= pnames
+ isym
.get_st_name();
1142 osym
.put_st_name(sympool
->get_offset(name
));
1143 osym
.put_st_value(this->local_values_
[i
].value(this, 0));
1144 osym
.put_st_size(isym
.get_st_size());
1145 osym
.put_st_info(isym
.get_st_info());
1146 osym
.put_st_other(isym
.get_st_other());
1147 osym
.put_st_shndx(st_shndx
);
1152 // Write the symbol to the output dynamic symbol table.
1153 if (this->local_values_
[i
].needs_output_dynsym_entry())
1155 gold_assert(dyn_ov
< dyn_oview
+ dyn_output_size
);
1156 elfcpp::Sym_write
<size
, big_endian
> osym(dyn_ov
);
1158 gold_assert(isym
.get_st_name() < strtab_size
);
1159 const char* name
= pnames
+ isym
.get_st_name();
1160 osym
.put_st_name(dynpool
->get_offset(name
));
1161 osym
.put_st_value(this->local_values_
[i
].value(this, 0));
1162 osym
.put_st_size(isym
.get_st_size());
1163 osym
.put_st_info(isym
.get_st_info());
1164 osym
.put_st_other(isym
.get_st_other());
1165 osym
.put_st_shndx(st_shndx
);
1172 if (output_size
> 0)
1174 gold_assert(ov
- oview
== output_size
);
1175 of
->write_output_view(this->local_symbol_offset_
, output_size
, oview
);
1178 if (dyn_output_size
> 0)
1180 gold_assert(dyn_ov
- dyn_oview
== dyn_output_size
);
1181 of
->write_output_view(this->local_dynsym_offset_
, dyn_output_size
,
1186 // Set *INFO to symbolic information about the offset OFFSET in the
1187 // section SHNDX. Return true if we found something, false if we
1190 template<int size
, bool big_endian
>
1192 Sized_relobj
<size
, big_endian
>::get_symbol_location_info(
1195 Symbol_location_info
* info
)
1197 if (this->symtab_shndx_
== 0)
1200 section_size_type symbols_size
;
1201 const unsigned char* symbols
= this->section_contents(this->symtab_shndx_
,
1205 unsigned int symbol_names_shndx
= this->section_link(this->symtab_shndx_
);
1206 section_size_type names_size
;
1207 const unsigned char* symbol_names_u
=
1208 this->section_contents(symbol_names_shndx
, &names_size
, false);
1209 const char* symbol_names
= reinterpret_cast<const char*>(symbol_names_u
);
1211 const int sym_size
= This::sym_size
;
1212 const size_t count
= symbols_size
/ sym_size
;
1214 const unsigned char* p
= symbols
;
1215 for (size_t i
= 0; i
< count
; ++i
, p
+= sym_size
)
1217 elfcpp::Sym
<size
, big_endian
> sym(p
);
1219 if (sym
.get_st_type() == elfcpp::STT_FILE
)
1221 if (sym
.get_st_name() >= names_size
)
1222 info
->source_file
= "(invalid)";
1224 info
->source_file
= symbol_names
+ sym
.get_st_name();
1226 else if (sym
.get_st_shndx() == shndx
1227 && static_cast<off_t
>(sym
.get_st_value()) <= offset
1228 && (static_cast<off_t
>(sym
.get_st_value() + sym
.get_st_size())
1231 if (sym
.get_st_name() > names_size
)
1232 info
->enclosing_symbol_name
= "(invalid)";
1235 info
->enclosing_symbol_name
= symbol_names
+ sym
.get_st_name();
1236 if (parameters
->options().do_demangle())
1238 char* demangled_name
= cplus_demangle(
1239 info
->enclosing_symbol_name
.c_str(),
1240 DMGL_ANSI
| DMGL_PARAMS
);
1241 if (demangled_name
!= NULL
)
1243 info
->enclosing_symbol_name
.assign(demangled_name
);
1244 free(demangled_name
);
1255 // Input_objects methods.
1257 // Add a regular relocatable object to the list. Return false if this
1258 // object should be ignored.
1261 Input_objects::add_object(Object
* obj
)
1263 // Set the global target from the first object file we recognize.
1264 Target
* target
= obj
->target();
1265 if (!parameters
->target_valid())
1266 set_parameters_target(target
);
1267 else if (target
!= ¶meters
->target())
1269 obj
->error(_("incompatible target"));
1273 if (!obj
->is_dynamic())
1274 this->relobj_list_
.push_back(static_cast<Relobj
*>(obj
));
1277 // See if this is a duplicate SONAME.
1278 Dynobj
* dynobj
= static_cast<Dynobj
*>(obj
);
1279 const char* soname
= dynobj
->soname();
1281 std::pair
<Unordered_set
<std::string
>::iterator
, bool> ins
=
1282 this->sonames_
.insert(soname
);
1285 // We have already seen a dynamic object with this soname.
1289 this->dynobj_list_
.push_back(dynobj
);
1291 // If this is -lc, remember the directory in which we found it.
1292 // We use this when issuing warnings about undefined symbols: as
1293 // a heuristic, we don't warn about system libraries found in
1294 // the same directory as -lc.
1295 if (strncmp(soname
, "libc.so", 7) == 0)
1297 const char* object_name
= dynobj
->name().c_str();
1298 const char* base
= lbasename(object_name
);
1299 if (base
!= object_name
)
1300 this->system_library_directory_
.assign(object_name
,
1301 base
- 1 - object_name
);
1308 // Return whether an object was found in the system library directory.
1311 Input_objects::found_in_system_library_directory(const Object
* object
) const
1313 return (!this->system_library_directory_
.empty()
1314 && object
->name().compare(0,
1315 this->system_library_directory_
.size(),
1316 this->system_library_directory_
) == 0);
1319 // For each dynamic object, record whether we've seen all of its
1320 // explicit dependencies.
1323 Input_objects::check_dynamic_dependencies() const
1325 for (Dynobj_list::const_iterator p
= this->dynobj_list_
.begin();
1326 p
!= this->dynobj_list_
.end();
1329 const Dynobj::Needed
& needed((*p
)->needed());
1330 bool found_all
= true;
1331 for (Dynobj::Needed::const_iterator pneeded
= needed
.begin();
1332 pneeded
!= needed
.end();
1335 if (this->sonames_
.find(*pneeded
) == this->sonames_
.end())
1341 (*p
)->set_has_unknown_needed_entries(!found_all
);
1345 // Relocate_info methods.
1347 // Return a string describing the location of a relocation. This is
1348 // only used in error messages.
1350 template<int size
, bool big_endian
>
1352 Relocate_info
<size
, big_endian
>::location(size_t, off_t offset
) const
1354 // See if we can get line-number information from debugging sections.
1355 std::string filename
;
1356 std::string file_and_lineno
; // Better than filename-only, if available.
1358 Sized_dwarf_line_info
<size
, big_endian
> line_info(this->object
);
1359 // This will be "" if we failed to parse the debug info for any reason.
1360 file_and_lineno
= line_info
.addr2line(this->data_shndx
, offset
);
1362 std::string
ret(this->object
->name());
1364 Symbol_location_info info
;
1365 if (this->object
->get_symbol_location_info(this->data_shndx
, offset
, &info
))
1367 ret
+= " in function ";
1368 ret
+= info
.enclosing_symbol_name
;
1370 filename
= info
.source_file
;
1373 if (!file_and_lineno
.empty())
1374 ret
+= file_and_lineno
;
1377 if (!filename
.empty())
1380 ret
+= this->object
->section_name(this->data_shndx
);
1382 // Offsets into sections have to be positive.
1383 snprintf(buf
, sizeof(buf
), "+0x%lx", static_cast<long>(offset
));
1390 } // End namespace gold.
1395 using namespace gold
;
1397 // Read an ELF file with the header and return the appropriate
1398 // instance of Object.
1400 template<int size
, bool big_endian
>
1402 make_elf_sized_object(const std::string
& name
, Input_file
* input_file
,
1403 off_t offset
, const elfcpp::Ehdr
<size
, big_endian
>& ehdr
)
1405 int et
= ehdr
.get_e_type();
1406 if (et
== elfcpp::ET_REL
)
1408 Sized_relobj
<size
, big_endian
>* obj
=
1409 new Sized_relobj
<size
, big_endian
>(name
, input_file
, offset
, ehdr
);
1413 else if (et
== elfcpp::ET_DYN
)
1415 Sized_dynobj
<size
, big_endian
>* obj
=
1416 new Sized_dynobj
<size
, big_endian
>(name
, input_file
, offset
, ehdr
);
1422 gold_error(_("%s: unsupported ELF file type %d"),
1428 } // End anonymous namespace.
1433 // Read an ELF file and return the appropriate instance of Object.
1436 make_elf_object(const std::string
& name
, Input_file
* input_file
, off_t offset
,
1437 const unsigned char* p
, section_offset_type bytes
)
1439 if (bytes
< elfcpp::EI_NIDENT
)
1441 gold_error(_("%s: ELF file too short"), name
.c_str());
1445 int v
= p
[elfcpp::EI_VERSION
];
1446 if (v
!= elfcpp::EV_CURRENT
)
1448 if (v
== elfcpp::EV_NONE
)
1449 gold_error(_("%s: invalid ELF version 0"), name
.c_str());
1451 gold_error(_("%s: unsupported ELF version %d"), name
.c_str(), v
);
1455 int c
= p
[elfcpp::EI_CLASS
];
1456 if (c
== elfcpp::ELFCLASSNONE
)
1458 gold_error(_("%s: invalid ELF class 0"), name
.c_str());
1461 else if (c
!= elfcpp::ELFCLASS32
1462 && c
!= elfcpp::ELFCLASS64
)
1464 gold_error(_("%s: unsupported ELF class %d"), name
.c_str(), c
);
1468 int d
= p
[elfcpp::EI_DATA
];
1469 if (d
== elfcpp::ELFDATANONE
)
1471 gold_error(_("%s: invalid ELF data encoding"), name
.c_str());
1474 else if (d
!= elfcpp::ELFDATA2LSB
1475 && d
!= elfcpp::ELFDATA2MSB
)
1477 gold_error(_("%s: unsupported ELF data encoding %d"), name
.c_str(), d
);
1481 bool big_endian
= d
== elfcpp::ELFDATA2MSB
;
1483 if (c
== elfcpp::ELFCLASS32
)
1485 if (bytes
< elfcpp::Elf_sizes
<32>::ehdr_size
)
1487 gold_error(_("%s: ELF file too short"), name
.c_str());
1492 #ifdef HAVE_TARGET_32_BIG
1493 elfcpp::Ehdr
<32, true> ehdr(p
);
1494 return make_elf_sized_object
<32, true>(name
, input_file
,
1497 gold_error(_("%s: not configured to support "
1498 "32-bit big-endian object"),
1505 #ifdef HAVE_TARGET_32_LITTLE
1506 elfcpp::Ehdr
<32, false> ehdr(p
);
1507 return make_elf_sized_object
<32, false>(name
, input_file
,
1510 gold_error(_("%s: not configured to support "
1511 "32-bit little-endian object"),
1519 if (bytes
< elfcpp::Elf_sizes
<32>::ehdr_size
)
1521 gold_error(_("%s: ELF file too short"), name
.c_str());
1526 #ifdef HAVE_TARGET_64_BIG
1527 elfcpp::Ehdr
<64, true> ehdr(p
);
1528 return make_elf_sized_object
<64, true>(name
, input_file
,
1531 gold_error(_("%s: not configured to support "
1532 "64-bit big-endian object"),
1539 #ifdef HAVE_TARGET_64_LITTLE
1540 elfcpp::Ehdr
<64, false> ehdr(p
);
1541 return make_elf_sized_object
<64, false>(name
, input_file
,
1544 gold_error(_("%s: not configured to support "
1545 "64-bit little-endian object"),
1553 // Instantiate the templates we need.
1555 #ifdef HAVE_TARGET_32_LITTLE
1558 Object::read_section_data
<32, false>(elfcpp::Elf_file
<32, false, Object
>*,
1559 Read_symbols_data
*);
1562 #ifdef HAVE_TARGET_32_BIG
1565 Object::read_section_data
<32, true>(elfcpp::Elf_file
<32, true, Object
>*,
1566 Read_symbols_data
*);
1569 #ifdef HAVE_TARGET_64_LITTLE
1572 Object::read_section_data
<64, false>(elfcpp::Elf_file
<64, false, Object
>*,
1573 Read_symbols_data
*);
1576 #ifdef HAVE_TARGET_64_BIG
1579 Object::read_section_data
<64, true>(elfcpp::Elf_file
<64, true, Object
>*,
1580 Read_symbols_data
*);
1583 #ifdef HAVE_TARGET_32_LITTLE
1585 class Sized_relobj
<32, false>;
1588 #ifdef HAVE_TARGET_32_BIG
1590 class Sized_relobj
<32, true>;
1593 #ifdef HAVE_TARGET_64_LITTLE
1595 class Sized_relobj
<64, false>;
1598 #ifdef HAVE_TARGET_64_BIG
1600 class Sized_relobj
<64, true>;
1603 #ifdef HAVE_TARGET_32_LITTLE
1605 struct Relocate_info
<32, false>;
1608 #ifdef HAVE_TARGET_32_BIG
1610 struct Relocate_info
<32, true>;
1613 #ifdef HAVE_TARGET_64_LITTLE
1615 struct Relocate_info
<64, false>;
1618 #ifdef HAVE_TARGET_64_BIG
1620 struct Relocate_info
<64, true>;
1623 } // End namespace gold.