1 // object.cc -- support for an object file for linking in gold
9 #include "target-select.h"
21 // Set the target based on fields in the ELF file header.
24 Object::set_target(int machine, int size, bool big_endian, int osabi,
27 Target* target = select_target(machine, size, big_endian, osabi, abiversion);
30 fprintf(stderr, _("%s: %s: unsupported ELF machine number %d\n"),
31 program_name, this->name().c_str(), machine);
34 this->target_ = target;
37 // Report an error for the elfcpp::Elf_file interface.
40 Object::error(const char* format, ...)
44 fprintf(stderr, "%s: %s: ", program_name, this->name().c_str());
45 va_start(args, format);
46 vfprintf(stderr, format, args);
53 // Return a view of the contents of a section.
56 Object::section_contents(unsigned int shndx, off_t* plen)
58 Location loc(this->do_section_contents(shndx));
59 *plen = loc.data_size;
60 return this->get_view(loc.file_offset, loc.data_size);
63 // Read the section data into SD. This is code common to Sized_relobj
64 // and Sized_dynobj, so we put it into Object.
66 template<int size, bool big_endian>
68 Object::read_section_data(elfcpp::Elf_file<size, big_endian, Object>* elf_file,
69 Read_symbols_data* sd)
71 const int shdr_size = elfcpp::Elf_sizes<size>::shdr_size;
73 // Read the section headers.
74 const off_t shoff = elf_file->shoff();
75 const unsigned int shnum = this->shnum();
76 sd->section_headers = this->get_lasting_view(shoff, shnum * shdr_size);
78 // Read the section names.
79 const unsigned char* pshdrs = sd->section_headers->data();
80 const unsigned char* pshdrnames = pshdrs + elf_file->shstrndx() * shdr_size;
81 typename elfcpp::Shdr<size, big_endian> shdrnames(pshdrnames);
83 if (shdrnames.get_sh_type() != elfcpp::SHT_STRTAB)
86 _("%s: %s: section name section has wrong type: %u\n"),
87 program_name, this->name().c_str(),
88 static_cast<unsigned int>(shdrnames.get_sh_type()));
92 sd->section_names_size = shdrnames.get_sh_size();
93 sd->section_names = this->get_lasting_view(shdrnames.get_sh_offset(),
94 sd->section_names_size);
97 // If NAME is the name of a special .gnu.warning section, arrange for
98 // the warning to be issued. SHNDX is the section index. Return
99 // whether it is a warning section.
102 Object::handle_gnu_warning_section(const char* name, unsigned int shndx,
103 Symbol_table* symtab)
105 const char warn_prefix[] = ".gnu.warning.";
106 const int warn_prefix_len = sizeof warn_prefix - 1;
107 if (strncmp(name, warn_prefix, warn_prefix_len) == 0)
109 symtab->add_warning(name + warn_prefix_len, this, shndx);
115 // Class Sized_relobj.
117 template<int size, bool big_endian>
118 Sized_relobj<size, big_endian>::Sized_relobj(
119 const std::string& name,
120 Input_file* input_file,
122 const elfcpp::Ehdr<size, big_endian>& ehdr)
123 : Relobj(name, input_file, offset),
124 elf_file_(this, ehdr),
126 local_symbol_count_(0),
127 output_local_symbol_count_(0),
129 local_symbol_offset_(0),
135 template<int size, bool big_endian>
136 Sized_relobj<size, big_endian>::~Sized_relobj()
140 // Set up an object file based on the file header. This sets up the
141 // target and reads the section information.
143 template<int size, bool big_endian>
145 Sized_relobj<size, big_endian>::setup(
146 const elfcpp::Ehdr<size, big_endian>& ehdr)
148 this->set_target(ehdr.get_e_machine(), size, big_endian,
149 ehdr.get_e_ident()[elfcpp::EI_OSABI],
150 ehdr.get_e_ident()[elfcpp::EI_ABIVERSION]);
152 const unsigned int shnum = this->elf_file_.shnum();
153 this->set_shnum(shnum);
156 // Find the SHT_SYMTAB section, given the section headers. The ELF
157 // standard says that maybe in the future there can be more than one
158 // SHT_SYMTAB section. Until somebody figures out how that could
159 // work, we assume there is only one.
161 template<int size, bool big_endian>
163 Sized_relobj<size, big_endian>::find_symtab(const unsigned char* pshdrs)
165 const unsigned int shnum = this->shnum();
166 this->symtab_shndx_ = 0;
169 // Look through the sections in reverse order, since gas tends
170 // to put the symbol table at the end.
171 const unsigned char* p = pshdrs + shnum * This::shdr_size;
172 unsigned int i = shnum;
176 p -= This::shdr_size;
177 typename This::Shdr shdr(p);
178 if (shdr.get_sh_type() == elfcpp::SHT_SYMTAB)
180 this->symtab_shndx_ = i;
187 // Read the sections and symbols from an object file.
189 template<int size, bool big_endian>
191 Sized_relobj<size, big_endian>::do_read_symbols(Read_symbols_data* sd)
193 this->read_section_data(&this->elf_file_, sd);
195 const unsigned char* const pshdrs = sd->section_headers->data();
197 this->find_symtab(pshdrs);
199 if (this->symtab_shndx_ == 0)
201 // No symbol table. Weird but legal.
203 sd->symbols_size = 0;
204 sd->symbol_names = NULL;
205 sd->symbol_names_size = 0;
209 // Get the symbol table section header.
210 typename This::Shdr symtabshdr(pshdrs
211 + this->symtab_shndx_ * This::shdr_size);
212 gold_assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB);
214 // We only need the external symbols.
215 const int sym_size = This::sym_size;
216 const unsigned int loccount = symtabshdr.get_sh_info();
217 this->local_symbol_count_ = loccount;
218 off_t locsize = loccount * sym_size;
219 off_t extoff = symtabshdr.get_sh_offset() + locsize;
220 off_t extsize = symtabshdr.get_sh_size() - locsize;
222 // Read the symbol table.
223 File_view* fvsymtab = this->get_lasting_view(extoff, extsize);
225 // Read the section header for the symbol names.
226 unsigned int strtab_shndx = symtabshdr.get_sh_link();
227 if (strtab_shndx >= this->shnum())
229 fprintf(stderr, _("%s: %s: invalid symbol table name index: %u\n"),
230 program_name, this->name().c_str(), strtab_shndx);
233 typename This::Shdr strtabshdr(pshdrs + strtab_shndx * This::shdr_size);
234 if (strtabshdr.get_sh_type() != elfcpp::SHT_STRTAB)
237 _("%s: %s: symbol table name section has wrong type: %u\n"),
238 program_name, this->name().c_str(),
239 static_cast<unsigned int>(strtabshdr.get_sh_type()));
243 // Read the symbol names.
244 File_view* fvstrtab = this->get_lasting_view(strtabshdr.get_sh_offset(),
245 strtabshdr.get_sh_size());
247 sd->symbols = fvsymtab;
248 sd->symbols_size = extsize;
249 sd->symbol_names = fvstrtab;
250 sd->symbol_names_size = strtabshdr.get_sh_size();
253 // Return whether to include a section group in the link. LAYOUT is
254 // used to keep track of which section groups we have already seen.
255 // INDEX is the index of the section group and SHDR is the section
256 // header. If we do not want to include this group, we set bits in
257 // OMIT for each section which should be discarded.
259 template<int size, bool big_endian>
261 Sized_relobj<size, big_endian>::include_section_group(
264 const elfcpp::Shdr<size, big_endian>& shdr,
265 std::vector<bool>* omit)
267 // Read the section contents.
268 const unsigned char* pcon = this->get_view(shdr.get_sh_offset(),
270 const elfcpp::Elf_Word* pword =
271 reinterpret_cast<const elfcpp::Elf_Word*>(pcon);
273 // The first word contains flags. We only care about COMDAT section
274 // groups. Other section groups are always included in the link
275 // just like ordinary sections.
276 elfcpp::Elf_Word flags = elfcpp::Swap<32, big_endian>::readval(pword);
277 if ((flags & elfcpp::GRP_COMDAT) == 0)
280 // Look up the group signature, which is the name of a symbol. This
281 // is a lot of effort to go to to read a string. Why didn't they
282 // just use the name of the SHT_GROUP section as the group
285 // Get the appropriate symbol table header (this will normally be
286 // the single SHT_SYMTAB section, but in principle it need not be).
287 const unsigned int link = shdr.get_sh_link();
288 typename This::Shdr symshdr(this, this->elf_file_.section_header(link));
290 // Read the symbol table entry.
291 if (shdr.get_sh_info() >= symshdr.get_sh_size() / This::sym_size)
293 fprintf(stderr, _("%s: %s: section group %u info %u out of range\n"),
294 program_name, this->name().c_str(), index, shdr.get_sh_info());
297 off_t symoff = symshdr.get_sh_offset() + shdr.get_sh_info() * This::sym_size;
298 const unsigned char* psym = this->get_view(symoff, This::sym_size);
299 elfcpp::Sym<size, big_endian> sym(psym);
301 // Read the symbol table names.
303 const unsigned char* psymnamesu;
304 psymnamesu = this->section_contents(symshdr.get_sh_link(), &symnamelen);
305 const char* psymnames = reinterpret_cast<const char*>(psymnamesu);
307 // Get the section group signature.
308 if (sym.get_st_name() >= symnamelen)
310 fprintf(stderr, _("%s: %s: symbol %u name offset %u out of range\n"),
311 program_name, this->name().c_str(), shdr.get_sh_info(),
316 const char* signature = psymnames + sym.get_st_name();
318 // It seems that some versions of gas will create a section group
319 // associated with a section symbol, and then fail to give a name to
320 // the section symbol. In such a case, use the name of the section.
323 if (signature[0] == '\0' && sym.get_st_type() == elfcpp::STT_SECTION)
325 secname = this->section_name(sym.get_st_shndx());
326 signature = secname.c_str();
329 // Record this section group, and see whether we've already seen one
330 // with the same signature.
331 if (layout->add_comdat(signature, true))
334 // This is a duplicate. We want to discard the sections in this
336 size_t count = shdr.get_sh_size() / sizeof(elfcpp::Elf_Word);
337 for (size_t i = 1; i < count; ++i)
339 elfcpp::Elf_Word secnum =
340 elfcpp::Swap<32, big_endian>::readval(pword + i);
341 if (secnum >= this->shnum())
344 _("%s: %s: section %u in section group %u out of range"),
345 program_name, this->name().c_str(), secnum,
349 (*omit)[secnum] = true;
355 // Whether to include a linkonce section in the link. NAME is the
356 // name of the section and SHDR is the section header.
358 // Linkonce sections are a GNU extension implemented in the original
359 // GNU linker before section groups were defined. The semantics are
360 // that we only include one linkonce section with a given name. The
361 // name of a linkonce section is normally .gnu.linkonce.T.SYMNAME,
362 // where T is the type of section and SYMNAME is the name of a symbol.
363 // In an attempt to make linkonce sections interact well with section
364 // groups, we try to identify SYMNAME and use it like a section group
365 // signature. We want to block section groups with that signature,
366 // but not other linkonce sections with that signature. We also use
367 // the full name of the linkonce section as a normal section group
370 template<int size, bool big_endian>
372 Sized_relobj<size, big_endian>::include_linkonce_section(
375 const elfcpp::Shdr<size, big_endian>&)
377 const char* symname = strrchr(name, '.') + 1;
378 bool include1 = layout->add_comdat(symname, false);
379 bool include2 = layout->add_comdat(name, true);
380 return include1 && include2;
383 // Lay out the input sections. We walk through the sections and check
384 // whether they should be included in the link. If they should, we
385 // pass them to the Layout object, which will return an output section
388 template<int size, bool big_endian>
390 Sized_relobj<size, big_endian>::do_layout(const General_options& options,
391 Symbol_table* symtab,
393 Read_symbols_data* sd)
395 const unsigned int shnum = this->shnum();
399 // Get the section headers.
400 const unsigned char* pshdrs = sd->section_headers->data();
402 // Get the section names.
403 const unsigned char* pnamesu = sd->section_names->data();
404 const char* pnames = reinterpret_cast<const char*>(pnamesu);
406 std::vector<Map_to_output>& map_sections(this->map_to_output());
407 map_sections.resize(shnum);
409 // Keep track of which sections to omit.
410 std::vector<bool> omit(shnum, false);
412 // Skip the first, dummy, section.
413 pshdrs += This::shdr_size;
414 for (unsigned int i = 1; i < shnum; ++i, pshdrs += This::shdr_size)
416 typename This::Shdr shdr(pshdrs);
418 if (shdr.get_sh_name() >= sd->section_names_size)
421 _("%s: %s: bad section name offset for section %u: %lu\n"),
422 program_name, this->name().c_str(), i,
423 static_cast<unsigned long>(shdr.get_sh_name()));
427 const char* name = pnames + shdr.get_sh_name();
429 if (this->handle_gnu_warning_section(name, i, symtab))
431 if (!options.is_relocatable())
435 bool discard = omit[i];
438 if (shdr.get_sh_type() == elfcpp::SHT_GROUP)
440 if (!this->include_section_group(layout, i, shdr, &omit))
443 else if (Layout::is_linkonce(name))
445 if (!this->include_linkonce_section(layout, name, shdr))
452 // Do not include this section in the link.
453 map_sections[i].output_section = NULL;
458 Output_section* os = layout->layout(this, i, name, shdr, &offset);
460 map_sections[i].output_section = os;
461 map_sections[i].offset = offset;
464 delete sd->section_headers;
465 sd->section_headers = NULL;
466 delete sd->section_names;
467 sd->section_names = NULL;
470 // Add the symbols to the symbol table.
472 template<int size, bool big_endian>
474 Sized_relobj<size, big_endian>::do_add_symbols(Symbol_table* symtab,
475 Read_symbols_data* sd)
477 if (sd->symbols == NULL)
479 gold_assert(sd->symbol_names == NULL);
483 const int sym_size = This::sym_size;
484 size_t symcount = sd->symbols_size / sym_size;
485 if (symcount * sym_size != sd->symbols_size)
488 _("%s: %s: size of symbols is not multiple of symbol size\n"),
489 program_name, this->name().c_str());
493 this->symbols_ = new Symbol*[symcount];
495 const char* sym_names =
496 reinterpret_cast<const char*>(sd->symbol_names->data());
497 symtab->add_from_relobj(this, sd->symbols->data(), symcount, sym_names,
498 sd->symbol_names_size, this->symbols_);
502 delete sd->symbol_names;
503 sd->symbol_names = NULL;
506 // Finalize the local symbols. Here we record the file offset at
507 // which they should be output, we add their names to *POOL, and we
508 // add their values to THIS->LOCAL_VALUES_ and their indexes in the
509 // output symbol table to THIS->LOCAL_INDEXES_. Return the symbol
510 // index. This function is always called from the main thread. The
511 // actual output of the local symbols will occur in a separate task.
513 template<int size, bool big_endian>
515 Sized_relobj<size, big_endian>::do_finalize_local_symbols(unsigned int index,
519 gold_assert(this->symtab_shndx_ != -1U);
520 if (this->symtab_shndx_ == 0)
522 // This object has no symbols. Weird but legal.
526 gold_assert(off == static_cast<off_t>(align_address(off, size >> 3)));
528 this->local_symbol_offset_ = off;
530 // Read the symbol table section header.
531 const unsigned int symtab_shndx = this->symtab_shndx_;
532 typename This::Shdr symtabshdr(this,
533 this->elf_file_.section_header(symtab_shndx));
534 gold_assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB);
536 // Read the local symbols.
537 const int sym_size = This::sym_size;
538 const unsigned int loccount = this->local_symbol_count_;
539 gold_assert(loccount == symtabshdr.get_sh_info());
540 off_t locsize = loccount * sym_size;
541 const unsigned char* psyms = this->get_view(symtabshdr.get_sh_offset(),
544 this->local_values_.resize(loccount);
545 this->local_indexes_.resize(loccount);
547 // Read the symbol names.
548 const unsigned int strtab_shndx = symtabshdr.get_sh_link();
550 const unsigned char* pnamesu = this->section_contents(strtab_shndx,
552 const char* pnames = reinterpret_cast<const char*>(pnamesu);
554 // Loop over the local symbols.
556 const std::vector<Map_to_output>& mo(this->map_to_output());
557 unsigned int shnum = this->shnum();
558 unsigned int count = 0;
559 // Skip the first, dummy, symbol.
561 for (unsigned int i = 1; i < loccount; ++i, psyms += sym_size)
563 elfcpp::Sym<size, big_endian> sym(psyms);
565 unsigned int shndx = sym.get_st_shndx();
567 if (shndx >= elfcpp::SHN_LORESERVE)
569 if (shndx == elfcpp::SHN_ABS)
570 this->local_values_[i] = sym.get_st_value();
573 // FIXME: Handle SHN_XINDEX.
575 _("%s: %s: unknown section index %u "
576 "for local symbol %u\n"),
577 program_name, this->name().c_str(), shndx, i);
586 _("%s: %s: local symbol %u section index %u "
588 program_name, this->name().c_str(), i, shndx);
592 if (mo[shndx].output_section == NULL)
594 this->local_values_[i] = 0;
595 this->local_indexes_[i] = -1U;
599 this->local_values_[i] = (mo[shndx].output_section->address()
601 + sym.get_st_value());
604 // Decide whether this symbol should go into the output file.
606 if (sym.get_st_type() == elfcpp::STT_SECTION)
608 this->local_indexes_[i] = -1U;
612 if (sym.get_st_name() >= strtab_size)
615 _("%s: %s: local symbol %u section name "
616 "out of range: %u >= %u\n"),
617 program_name, this->name().c_str(),
618 i, sym.get_st_name(),
619 static_cast<unsigned int>(strtab_size));
623 const char* name = pnames + sym.get_st_name();
624 pool->add(name, NULL);
625 this->local_indexes_[i] = index;
631 this->output_local_symbol_count_ = count;
636 // Write out the local symbols.
638 template<int size, bool big_endian>
640 Sized_relobj<size, big_endian>::write_local_symbols(Output_file* of,
641 const Stringpool* sympool)
643 gold_assert(this->symtab_shndx_ != -1U);
644 if (this->symtab_shndx_ == 0)
646 // This object has no symbols. Weird but legal.
650 // Read the symbol table section header.
651 const unsigned int symtab_shndx = this->symtab_shndx_;
652 typename This::Shdr symtabshdr(this,
653 this->elf_file_.section_header(symtab_shndx));
654 gold_assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB);
655 const unsigned int loccount = this->local_symbol_count_;
656 gold_assert(loccount == symtabshdr.get_sh_info());
658 // Read the local symbols.
659 const int sym_size = This::sym_size;
660 off_t locsize = loccount * sym_size;
661 const unsigned char* psyms = this->get_view(symtabshdr.get_sh_offset(),
664 // Read the symbol names.
665 const unsigned int strtab_shndx = symtabshdr.get_sh_link();
667 const unsigned char* pnamesu = this->section_contents(strtab_shndx,
669 const char* pnames = reinterpret_cast<const char*>(pnamesu);
671 // Get a view into the output file.
672 off_t output_size = this->output_local_symbol_count_ * sym_size;
673 unsigned char* oview = of->get_output_view(this->local_symbol_offset_,
676 const std::vector<Map_to_output>& mo(this->map_to_output());
678 gold_assert(this->local_values_.size() == loccount);
679 gold_assert(this->local_indexes_.size() == loccount);
681 unsigned char* ov = oview;
683 for (unsigned int i = 1; i < loccount; ++i, psyms += sym_size)
685 elfcpp::Sym<size, big_endian> isym(psyms);
687 if (this->local_indexes_[i] == -1U)
689 gold_assert(this->local_indexes_[i] != 0);
691 unsigned int st_shndx = isym.get_st_shndx();
692 if (st_shndx < elfcpp::SHN_LORESERVE)
694 gold_assert(st_shndx < mo.size());
695 if (mo[st_shndx].output_section == NULL)
697 st_shndx = mo[st_shndx].output_section->out_shndx();
700 elfcpp::Sym_write<size, big_endian> osym(ov);
702 gold_assert(isym.get_st_name() < strtab_size);
703 const char* name = pnames + isym.get_st_name();
704 osym.put_st_name(sympool->get_offset(name));
705 osym.put_st_value(this->local_values_[i]);
706 osym.put_st_size(isym.get_st_size());
707 osym.put_st_info(isym.get_st_info());
708 osym.put_st_other(isym.get_st_other());
709 osym.put_st_shndx(st_shndx);
714 gold_assert(ov - oview == output_size);
716 of->write_output_view(this->local_symbol_offset_, output_size, oview);
719 // Input_objects methods.
721 // Add a regular relocatable object to the list. Return false if this
722 // object should be ignored.
725 Input_objects::add_object(Object* obj)
727 if (!obj->is_dynamic())
728 this->relobj_list_.push_back(static_cast<Relobj*>(obj));
731 // See if this is a duplicate SONAME.
732 Dynobj* dynobj = static_cast<Dynobj*>(obj);
734 std::pair<Unordered_set<std::string>::iterator, bool> ins =
735 this->sonames_.insert(dynobj->soname());
738 // We have already seen a dynamic object with this soname.
742 this->dynobj_list_.push_back(dynobj);
745 Target* target = obj->target();
746 if (this->target_ == NULL)
747 this->target_ = target;
748 else if (this->target_ != target)
750 fprintf(stderr, "%s: %s: incompatible target\n",
751 program_name, obj->name().c_str());
758 // Relocate_info methods.
760 // Return a string describing the location of a relocation. This is
761 // only used in error messages.
763 template<int size, bool big_endian>
765 Relocate_info<size, big_endian>::location(size_t relnum, off_t) const
767 std::string ret(this->object->name());
770 snprintf(buf, sizeof buf, "%zu", relnum);
772 ret += " in reloc section ";
773 snprintf(buf, sizeof buf, "%u", this->reloc_shndx);
775 ret += " (" + this->object->section_name(this->reloc_shndx);
776 ret += ") for section ";
777 snprintf(buf, sizeof buf, "%u", this->data_shndx);
779 ret += " (" + this->object->section_name(this->data_shndx) + ")";
783 } // End namespace gold.
788 using namespace gold;
790 // Read an ELF file with the header and return the appropriate
791 // instance of Object.
793 template<int size, bool big_endian>
795 make_elf_sized_object(const std::string& name, Input_file* input_file,
796 off_t offset, const elfcpp::Ehdr<size, big_endian>& ehdr)
798 int et = ehdr.get_e_type();
799 if (et == elfcpp::ET_REL)
801 Sized_relobj<size, big_endian>* obj =
802 new Sized_relobj<size, big_endian>(name, input_file, offset, ehdr);
806 else if (et == elfcpp::ET_DYN)
808 Sized_dynobj<size, big_endian>* obj =
809 new Sized_dynobj<size, big_endian>(name, input_file, offset, ehdr);
815 fprintf(stderr, _("%s: %s: unsupported ELF file type %d\n"),
816 program_name, name.c_str(), et);
821 } // End anonymous namespace.
826 // Read an ELF file and return the appropriate instance of Object.
829 make_elf_object(const std::string& name, Input_file* input_file, off_t offset,
830 const unsigned char* p, off_t bytes)
832 if (bytes < elfcpp::EI_NIDENT)
834 fprintf(stderr, _("%s: %s: ELF file too short\n"),
835 program_name, name.c_str());
839 int v = p[elfcpp::EI_VERSION];
840 if (v != elfcpp::EV_CURRENT)
842 if (v == elfcpp::EV_NONE)
843 fprintf(stderr, _("%s: %s: invalid ELF version 0\n"),
844 program_name, name.c_str());
846 fprintf(stderr, _("%s: %s: unsupported ELF version %d\n"),
847 program_name, name.c_str(), v);
851 int c = p[elfcpp::EI_CLASS];
852 if (c == elfcpp::ELFCLASSNONE)
854 fprintf(stderr, _("%s: %s: invalid ELF class 0\n"),
855 program_name, name.c_str());
858 else if (c != elfcpp::ELFCLASS32
859 && c != elfcpp::ELFCLASS64)
861 fprintf(stderr, _("%s: %s: unsupported ELF class %d\n"),
862 program_name, name.c_str(), c);
866 int d = p[elfcpp::EI_DATA];
867 if (d == elfcpp::ELFDATANONE)
869 fprintf(stderr, _("%s: %s: invalid ELF data encoding\n"),
870 program_name, name.c_str());
873 else if (d != elfcpp::ELFDATA2LSB
874 && d != elfcpp::ELFDATA2MSB)
876 fprintf(stderr, _("%s: %s: unsupported ELF data encoding %d\n"),
877 program_name, name.c_str(), d);
881 bool big_endian = d == elfcpp::ELFDATA2MSB;
883 if (c == elfcpp::ELFCLASS32)
885 if (bytes < elfcpp::Elf_sizes<32>::ehdr_size)
887 fprintf(stderr, _("%s: %s: ELF file too short\n"),
888 program_name, name.c_str());
893 elfcpp::Ehdr<32, true> ehdr(p);
894 return make_elf_sized_object<32, true>(name, input_file,
899 elfcpp::Ehdr<32, false> ehdr(p);
900 return make_elf_sized_object<32, false>(name, input_file,
906 if (bytes < elfcpp::Elf_sizes<32>::ehdr_size)
908 fprintf(stderr, _("%s: %s: ELF file too short\n"),
909 program_name, name.c_str());
914 elfcpp::Ehdr<64, true> ehdr(p);
915 return make_elf_sized_object<64, true>(name, input_file,
920 elfcpp::Ehdr<64, false> ehdr(p);
921 return make_elf_sized_object<64, false>(name, input_file,
927 // Instantiate the templates we need. We could use the configure
928 // script to restrict this to only the ones for implemented targets.
931 class Sized_relobj<32, false>;
934 class Sized_relobj<32, true>;
937 class Sized_relobj<64, false>;
940 class Sized_relobj<64, true>;
943 struct Relocate_info<32, false>;
946 struct Relocate_info<32, true>;
949 struct Relocate_info<64, false>;
952 struct Relocate_info<64, true>;
954 } // End namespace gold.