gold/reloc.cc

   1 // reloc.cc -- relocate input files for gold.
   2
   3 // Copyright 2006, 2007 Free Software Foundation, Inc.
   4 // Written by Ian Lance Taylor <iant@google.com>.
   5
   6 // This file is part of gold.
   7
   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.
  12
  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.
  17
  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.
  22
  23 #include "gold.h"
  24
  25 #include "workqueue.h"
  26 #include "object.h"
  27 #include "symtab.h"
  28 #include "output.h"
  29 #include "reloc.h"
  30
  31 namespace gold
  32 {
  33
  34 // Read_relocs methods.
  35
  36 // These tasks just read the relocation information from the file.
  37 // After reading it, the start another task to process the
  38 // information.  These tasks requires access to the file.
  39
  40 Task::Is_runnable_type
  41 Read_relocs::is_runnable(Workqueue*)
  42 {
  43   return this->object_->is_locked() ? IS_LOCKED : IS_RUNNABLE;
  44 }
  45
  46 // Lock the file.
  47
  48 Task_locker*
  49 Read_relocs::locks(Workqueue*)
  50 {
  51   return new Task_locker_obj<Object>(*this->object_);
  52 }
  53
  54 // Read the relocations and then start a Scan_relocs_task.
  55
  56 void
  57 Read_relocs::run(Workqueue* workqueue)
  58 {
  59   Read_relocs_data *rd = new Read_relocs_data;
  60   this->object_->read_relocs(rd);
  61   workqueue->queue_front(new Scan_relocs(this->options_, this->symtab_,
  62                                          this->layout_, this->object_, rd,
  63                                          this->symtab_lock_, this->blocker_));
  64 }
  65
  66 // Scan_relocs methods.
  67
  68 // These tasks scan the relocations read by Read_relocs and mark up
  69 // the symbol table to indicate which relocations are required.  We
  70 // use a lock on the symbol table to keep them from interfering with
  71 // each other.
  72
  73 Task::Is_runnable_type
  74 Scan_relocs::is_runnable(Workqueue*)
  75 {
  76   if (!this->symtab_lock_->is_writable() || this->object_->is_locked())
  77     return IS_LOCKED;
  78   return IS_RUNNABLE;
  79 }
  80
  81 // Return the locks we hold: one on the file, one on the symbol table
  82 // and one blocker.
  83
  84 class Scan_relocs::Scan_relocs_locker : public Task_locker
  85 {
  86  public:
  87   Scan_relocs_locker(Object* object, Task_token& symtab_lock, Task* task,
  88                      Task_token& blocker, Workqueue* workqueue)
  89     : objlock_(*object), symtab_locker_(symtab_lock, task),
  90       blocker_(blocker, workqueue)
  91   { }
  92
  93  private:
  94   Task_locker_obj<Object> objlock_;
  95   Task_locker_write symtab_locker_;
  96   Task_locker_block blocker_;
  97 };
  98
  99 Task_locker*
 100 Scan_relocs::locks(Workqueue* workqueue)
 101 {
 102   return new Scan_relocs_locker(this->object_, *this->symtab_lock_, this,
 103                                 *this->blocker_, workqueue);
 104 }
 105
 106 // Scan the relocs.
 107
 108 void
 109 Scan_relocs::run(Workqueue*)
 110 {
 111   this->object_->scan_relocs(this->options_, this->symtab_, this->layout_,
 112                              this->rd_);
 113   delete this->rd_;
 114   this->rd_ = NULL;
 115 }
 116
 117 // Relocate_task methods.
 118
 119 // These tasks are always runnable.
 120
 121 Task::Is_runnable_type
 122 Relocate_task::is_runnable(Workqueue*)
 123 {
 124   return IS_RUNNABLE;
 125 }
 126
 127 // We want to lock the file while we run.  We want to unblock
 128 // FINAL_BLOCKER when we are done.
 129
 130 class Relocate_task::Relocate_locker : public Task_locker
 131 {
 132  public:
 133   Relocate_locker(Task_token& token, Workqueue* workqueue,
 134                   Object* object)
 135     : blocker_(token, workqueue), objlock_(*object)
 136   { }
 137
 138  private:
 139   Task_locker_block blocker_;
 140   Task_locker_obj<Object> objlock_;
 141 };
 142
 143 Task_locker*
 144 Relocate_task::locks(Workqueue* workqueue)
 145 {
 146   return new Relocate_locker(*this->final_blocker_, workqueue,
 147                              this->object_);
 148 }
 149
 150 // Run the task.
 151
 152 void
 153 Relocate_task::run(Workqueue*)
 154 {
 155   this->object_->relocate(this->options_, this->symtab_, this->layout_,
 156                           this->of_);
 157 }
 158
 159 // Read the relocs and local symbols from the object file and store
 160 // the information in RD.
 161
 162 template<int size, bool big_endian>
 163 void
 164 Sized_relobj<size, big_endian>::do_read_relocs(Read_relocs_data* rd)
 165 {
 166   rd->relocs.clear();
 167
 168   unsigned int shnum = this->shnum();
 169   if (shnum == 0)
 170     return;
 171
 172   rd->relocs.reserve(shnum / 2);
 173
 174   const unsigned char *pshdrs = this->get_view(this->elf_file_.shoff(),
 175                                                shnum * This::shdr_size);
 176   // Skip the first, dummy, section.
 177   const unsigned char *ps = pshdrs + This::shdr_size;
 178   for (unsigned int i = 1; i < shnum; ++i, ps += This::shdr_size)
 179     {
 180       typename This::Shdr shdr(ps);
 181
 182       unsigned int sh_type = shdr.get_sh_type();
 183       if (sh_type != elfcpp::SHT_REL && sh_type != elfcpp::SHT_RELA)
 184         continue;
 185
 186       unsigned int shndx = shdr.get_sh_info();
 187       if (shndx >= shnum)
 188         {
 189           fprintf(stderr, _("%s: %s: relocation section %u has bad info %u\n"),
 190                   program_name, this->name().c_str(), i, shndx);
 191           gold_exit(false);
 192         }
 193
 194       if (!this->is_section_included(shndx))
 195         continue;
 196
 197       // We are scanning relocations in order to fill out the GOT and
 198       // PLT sections.  Relocations for sections which are not
 199       // allocated (typically debugging sections) should not add new
 200       // GOT and PLT entries.  So we skip them.
 201       typename This::Shdr secshdr(pshdrs + shndx * This::shdr_size);
 202       if ((secshdr.get_sh_flags() & elfcpp::SHF_ALLOC) == 0)
 203         continue;
 204
 205       if (shdr.get_sh_link() != this->symtab_shndx_)
 206         {
 207           fprintf(stderr,
 208                   _("%s: %s: relocation section %u uses unexpected "
 209                     "symbol table %u\n"),
 210                   program_name, this->name().c_str(), i, shdr.get_sh_link());
 211           gold_exit(false);
 212         }
 213
 214       off_t sh_size = shdr.get_sh_size();
 215
 216       unsigned int reloc_size;
 217       if (sh_type == elfcpp::SHT_REL)
 218         reloc_size = elfcpp::Elf_sizes<size>::rel_size;
 219       else
 220         reloc_size = elfcpp::Elf_sizes<size>::rela_size;
 221       if (reloc_size != shdr.get_sh_entsize())
 222         {
 223           fprintf(stderr,
 224                   _("%s: %s: unexpected entsize for reloc section %u: "
 225                     "%lu != %u"),
 226                   program_name, this->name().c_str(), i,
 227                   static_cast<unsigned long>(shdr.get_sh_entsize()),
 228                   reloc_size);
 229           gold_exit(false);
 230         }
 231
 232       size_t reloc_count = sh_size / reloc_size;
 233       if (reloc_count * reloc_size != sh_size)
 234         {
 235           fprintf(stderr, _("%s: %s: reloc section %u size %lu uneven"),
 236                   program_name, this->name().c_str(), i,
 237                   static_cast<unsigned long>(sh_size));
 238           gold_exit(false);
 239         }
 240
 241       rd->relocs.push_back(Section_relocs());
 242       Section_relocs& sr(rd->relocs.back());
 243       sr.reloc_shndx = i;
 244       sr.data_shndx = shndx;
 245       sr.contents = this->get_lasting_view(shdr.get_sh_offset(), sh_size);
 246       sr.sh_type = sh_type;
 247       sr.reloc_count = reloc_count;
 248     }
 249
 250   // Read the local symbols.
 251   gold_assert(this->symtab_shndx_ != -1U);
 252   if (this->symtab_shndx_ == 0 || this->local_symbol_count_ == 0)
 253     rd->local_symbols = NULL;
 254   else
 255     {
 256       typename This::Shdr symtabshdr(pshdrs
 257                                      + this->symtab_shndx_ * This::shdr_size);
 258       gold_assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB);
 259       const int sym_size = This::sym_size;
 260       const unsigned int loccount = this->local_symbol_count_;
 261       gold_assert(loccount == symtabshdr.get_sh_info());
 262       off_t locsize = loccount * sym_size;
 263       rd->local_symbols = this->get_lasting_view(symtabshdr.get_sh_offset(),
 264                                                  locsize);
 265     }
 266 }
 267
 268 // Scan the relocs and adjust the symbol table.  This looks for
 269 // relocations which require GOT/PLT/COPY relocations.
 270
 271 template<int size, bool big_endian>
 272 void
 273 Sized_relobj<size, big_endian>::do_scan_relocs(const General_options& options,
 274                                                Symbol_table* symtab,
 275                                                Layout* layout,
 276                                                Read_relocs_data* rd)
 277 {
 278   Sized_target<size, big_endian>* target = this->sized_target();
 279
 280   const unsigned char* local_symbols;
 281   if (rd->local_symbols == NULL)
 282     local_symbols = NULL;
 283   else
 284     local_symbols = rd->local_symbols->data();
 285
 286   for (Read_relocs_data::Relocs_list::iterator p = rd->relocs.begin();
 287        p != rd->relocs.end();
 288        ++p)
 289     {
 290       target->scan_relocs(options, symtab, layout, this, p->data_shndx,
 291                           p->sh_type, p->contents->data(), p->reloc_count,
 292                           this->local_symbol_count_,
 293                           local_symbols,
 294                           this->symbols_);
 295       delete p->contents;
 296       p->contents = NULL;
 297     }
 298
 299   if (rd->local_symbols != NULL)
 300     {
 301       delete rd->local_symbols;
 302       rd->local_symbols = NULL;
 303     }
 304 }
 305
 306 // Relocate the input sections and write out the local symbols.
 307
 308 template<int size, bool big_endian>
 309 void
 310 Sized_relobj<size, big_endian>::do_relocate(const General_options& options,
 311                                             const Symbol_table* symtab,
 312                                             const Layout* layout,
 313                                             Output_file* of)
 314 {
 315   unsigned int shnum = this->shnum();
 316
 317   // Read the section headers.
 318   const unsigned char* pshdrs = this->get_view(this->elf_file_.shoff(),
 319                                                shnum * This::shdr_size);
 320
 321   Views views;
 322   views.resize(shnum);
 323
 324   // Make two passes over the sections.  The first one copies the
 325   // section data to the output file.  The second one applies
 326   // relocations.
 327
 328   this->write_sections(pshdrs, of, &views);
 329
 330   // Apply relocations.
 331
 332   this->relocate_sections(options, symtab, layout, pshdrs, &views);
 333
 334   // Write out the accumulated views.
 335   for (unsigned int i = 1; i < shnum; ++i)
 336     {
 337       if (views[i].view != NULL)
 338         of->write_output_view(views[i].offset, views[i].view_size,
 339                               views[i].view);
 340     }
 341
 342   // Write out the local symbols.
 343   this->write_local_symbols(of, layout->sympool());
 344 }
 345
 346 // Write section data to the output file.  PSHDRS points to the
 347 // section headers.  Record the views in *PVIEWS for use when
 348 // relocating.
 349
 350 template<int size, bool big_endian>
 351 void
 352 Sized_relobj<size, big_endian>::write_sections(const unsigned char* pshdrs,
 353                                                Output_file* of,
 354                                                Views* pviews)
 355 {
 356   unsigned int shnum = this->shnum();
 357   std::vector<Map_to_output>& map_sections(this->map_to_output());
 358
 359   const unsigned char* p = pshdrs + This::shdr_size;
 360   for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size)
 361     {
 362       View_size* pvs = &(*pviews)[i];
 363
 364       pvs->view = NULL;
 365
 366       if (map_sections[i].offset == -1)
 367         continue;
 368
 369       const Output_section* os = map_sections[i].output_section;
 370       if (os == NULL)
 371         continue;
 372
 373       typename This::Shdr shdr(p);
 374
 375       if (shdr.get_sh_type() == elfcpp::SHT_NOBITS)
 376         continue;
 377
 378       off_t start = os->offset() + map_sections[i].offset;
 379       off_t sh_size = shdr.get_sh_size();
 380
 381       if (sh_size == 0)
 382         continue;
 383
 384       gold_assert(map_sections[i].offset >= 0
 385                   && map_sections[i].offset + sh_size <= os->data_size());
 386
 387       unsigned char* view = of->get_output_view(start, sh_size);
 388       this->read(shdr.get_sh_offset(), sh_size, view);
 389
 390       pvs->view = view;
 391       pvs->address = os->address() + map_sections[i].offset;
 392       pvs->offset = start;
 393       pvs->view_size = sh_size;
 394     }
 395 }
 396
 397 // Relocate section data.  VIEWS points to the section data as views
 398 // in the output file.
 399
 400 template<int size, bool big_endian>
 401 void
 402 Sized_relobj<size, big_endian>::relocate_sections(
 403     const General_options& options,
 404     const Symbol_table* symtab,
 405     const Layout* layout,
 406     const unsigned char* pshdrs,
 407     Views* pviews)
 408 {
 409   unsigned int shnum = this->shnum();
 410   Sized_target<size, big_endian>* target = this->sized_target();
 411
 412   Relocate_info<size, big_endian> relinfo;
 413   relinfo.options = &options;
 414   relinfo.symtab = symtab;
 415   relinfo.layout = layout;
 416   relinfo.object = this;
 417   relinfo.local_symbol_count = this->local_symbol_count_;
 418   relinfo.local_values = &this->local_values_;
 419   relinfo.symbols = this->symbols_;
 420
 421   const unsigned char* p = pshdrs + This::shdr_size;
 422   for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size)
 423     {
 424       typename This::Shdr shdr(p);
 425
 426       unsigned int sh_type = shdr.get_sh_type();
 427       if (sh_type != elfcpp::SHT_REL && sh_type != elfcpp::SHT_RELA)
 428         continue;
 429
 430       unsigned int index = shdr.get_sh_info();
 431       if (index >= this->shnum())
 432         {
 433           fprintf(stderr, _("%s: %s: relocation section %u has bad info %u\n"),
 434                   program_name, this->name().c_str(), i, index);
 435           gold_exit(false);
 436         }
 437
 438       if (!this->is_section_included(index))
 439         {
 440           // This relocation section is against a section which we
 441           // discarded.
 442           continue;
 443         }
 444
 445       gold_assert((*pviews)[index].view != NULL);
 446
 447       if (shdr.get_sh_link() != this->symtab_shndx_)
 448         {
 449           fprintf(stderr,
 450                   _("%s: %s: relocation section %u uses unexpected "
 451                     "symbol table %u\n"),
 452                   program_name, this->name().c_str(), i, shdr.get_sh_link());
 453           gold_exit(false);
 454         }
 455
 456       off_t sh_size = shdr.get_sh_size();
 457       const unsigned char* prelocs = this->get_view(shdr.get_sh_offset(),
 458                                                     sh_size);
 459
 460       unsigned int reloc_size;
 461       if (sh_type == elfcpp::SHT_REL)
 462         reloc_size = elfcpp::Elf_sizes<size>::rel_size;
 463       else
 464         reloc_size = elfcpp::Elf_sizes<size>::rela_size;
 465
 466       if (reloc_size != shdr.get_sh_entsize())
 467         {
 468           fprintf(stderr,
 469                   _("%s: %s: unexpected entsize for reloc section %u: "
 470                     "%lu != %u"),
 471                   program_name, this->name().c_str(), i,
 472                   static_cast<unsigned long>(shdr.get_sh_entsize()),
 473                   reloc_size);
 474           gold_exit(false);
 475         }
 476
 477       size_t reloc_count = sh_size / reloc_size;
 478       if (reloc_count * reloc_size != sh_size)
 479         {
 480           fprintf(stderr, _("%s: %s: reloc section %u size %lu uneven"),
 481                   program_name, this->name().c_str(), i,
 482                   static_cast<unsigned long>(sh_size));
 483           gold_exit(false);
 484         }
 485
 486       relinfo.reloc_shndx = i;
 487       relinfo.data_shndx = index;
 488       target->relocate_section(&relinfo,
 489                                sh_type,
 490                                prelocs,
 491                                reloc_count,
 492                                (*pviews)[index].view,
 493                                (*pviews)[index].address,
 494                                (*pviews)[index].view_size);
 495     }
 496 }
 497
 498 // Copy_relocs::Copy_reloc_entry methods.
 499
 500 // Return whether we should emit this reloc.  We should emit it if the
 501 // symbol is still defined in a dynamic object.  If we should not emit
 502 // it, we clear it, to save ourselves the test next time.
 503
 504 template<int size, bool big_endian>
 505 bool
 506 Copy_relocs<size, big_endian>::Copy_reloc_entry::should_emit()
 507 {
 508   if (this->sym_ == NULL)
 509     return false;
 510   if (this->sym_->is_from_dynobj())
 511     return true;
 512   this->sym_ = NULL;
 513   return false;
 514 }
 515
 516 // Emit a reloc into a SHT_REL section.
 517
 518 template<int size, bool big_endian>
 519 void
 520 Copy_relocs<size, big_endian>::Copy_reloc_entry::emit(
 521     Output_data_reloc<elfcpp::SHT_REL, true, size, big_endian>* reloc_data)
 522 {
 523   this->sym_->set_needs_dynsym_entry();
 524   reloc_data->add_global(this->sym_, this->reloc_type_, this->relobj_,
 525                          this->shndx_, this->address_);
 526 }
 527
 528 // Emit a reloc into a SHT_RELA section.
 529
 530 template<int size, bool big_endian>
 531 void
 532 Copy_relocs<size, big_endian>::Copy_reloc_entry::emit(
 533     Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian>* reloc_data)
 534 {
 535   this->sym_->set_needs_dynsym_entry();
 536   reloc_data->add_global(this->sym_, this->reloc_type_, this->relobj_,
 537                          this->shndx_, this->address_, this->addend_);
 538 }
 539
 540 // Copy_relocs methods.
 541
 542 // Return whether we need a COPY reloc for a relocation against GSYM.
 543 // The relocation is being applied to section SHNDX in OBJECT.
 544
 545 template<int size, bool big_endian>
 546 bool
 547 Copy_relocs<size, big_endian>::need_copy_reloc(
 548     const General_options*,
 549     Relobj* object,
 550     unsigned int shndx,
 551     Sized_symbol<size>* sym)
 552 {
 553   // FIXME: Handle -z nocopyrelocs.
 554
 555   if (sym->symsize() == 0)
 556     return false;
 557
 558   // If this is a readonly section, then we need a COPY reloc.
 559   // Otherwise we can use a dynamic reloc.
 560   if ((object->section_flags(shndx) & elfcpp::SHF_WRITE) == 0)
 561     return true;
 562
 563   return false;
 564 }
 565
 566 // Save a Rel reloc.
 567
 568 template<int size, bool big_endian>
 569 void
 570 Copy_relocs<size, big_endian>::save(
 571     Symbol* sym,
 572     Relobj* relobj,
 573     unsigned int shndx,
 574     const elfcpp::Rel<size, big_endian>& rel)
 575 {
 576   unsigned int reloc_type = elfcpp::elf_r_type<size>(rel.get_r_info());
 577   this->entries_.push_back(Copy_reloc_entry(sym, reloc_type, relobj, shndx,
 578                                             rel.get_r_offset(), 0));
 579 }
 580
 581 // Save a Rela reloc.
 582
 583 template<int size, bool big_endian>
 584 void
 585 Copy_relocs<size, big_endian>::save(
 586     Symbol* sym,
 587     Relobj* relobj,
 588     unsigned int shndx,
 589     const elfcpp::Rela<size, big_endian>& rela)
 590 {
 591   unsigned int reloc_type = elfcpp::elf_r_type<size>(rela.get_r_info());
 592   this->entries_.push_back(Copy_reloc_entry(sym, reloc_type, relobj, shndx,
 593                                             rela.get_r_offset(),
 594                                             rela.get_r_addend()));
 595 }
 596
 597 // Return whether there are any relocs to emit.  We don't want to emit
 598 // a reloc if the symbol is no longer defined in a dynamic object.
 599
 600 template<int size, bool big_endian>
 601 bool
 602 Copy_relocs<size, big_endian>::any_to_emit()
 603 {
 604   for (typename Copy_reloc_entries::iterator p = this->entries_.begin();
 605        p != this->entries_.end();
 606        ++p)
 607     {
 608       if (p->should_emit())
 609         return true;
 610     }
 611   return false;
 612 }
 613
 614 // Emit relocs.
 615
 616 template<int size, bool big_endian>
 617 template<int sh_type>
 618 void
 619 Copy_relocs<size, big_endian>::emit(
 620     Output_data_reloc<sh_type, true, size, big_endian>* reloc_data)
 621 {
 622   for (typename Copy_reloc_entries::iterator p = this->entries_.begin();
 623        p != this->entries_.end();
 624        ++p)
 625     {
 626       if (p->should_emit())
 627         p->emit(reloc_data);
 628     }
 629 }
 630
 631 // Instantiate the templates we need.  We could use the configure
 632 // script to restrict this to only the ones for implemented targets.
 633
 634 #ifdef HAVE_TARGET_32_LITTLE
 635 template
 636 void
 637 Sized_relobj<32, false>::do_read_relocs(Read_relocs_data* rd);
 638 #endif
 639
 640 #ifdef HAVE_TARGET_32_BIG
 641 template
 642 void
 643 Sized_relobj<32, true>::do_read_relocs(Read_relocs_data* rd);
 644 #endif
 645
 646 #ifdef HAVE_TARGET_64_LITTLE
 647 template
 648 void
 649 Sized_relobj<64, false>::do_read_relocs(Read_relocs_data* rd);
 650 #endif
 651
 652 #ifdef HAVE_TARGET_64_BIG
 653 template
 654 void
 655 Sized_relobj<64, true>::do_read_relocs(Read_relocs_data* rd);
 656 #endif
 657
 658 #ifdef HAVE_TARGET_32_LITTLE
 659 template
 660 void
 661 Sized_relobj<32, false>::do_scan_relocs(const General_options& options,
 662                                         Symbol_table* symtab,
 663                                         Layout* layout,
 664                                         Read_relocs_data* rd);
 665 #endif
 666
 667 #ifdef HAVE_TARGET_32_BIG
 668 template
 669 void
 670 Sized_relobj<32, true>::do_scan_relocs(const General_options& options,
 671                                        Symbol_table* symtab,
 672                                        Layout* layout,
 673                                        Read_relocs_data* rd);
 674 #endif
 675
 676 #ifdef HAVE_TARGET_64_LITTLE
 677 template
 678 void
 679 Sized_relobj<64, false>::do_scan_relocs(const General_options& options,
 680                                         Symbol_table* symtab,
 681                                         Layout* layout,
 682                                         Read_relocs_data* rd);
 683 #endif
 684
 685 #ifdef HAVE_TARGET_64_BIG
 686 template
 687 void
 688 Sized_relobj<64, true>::do_scan_relocs(const General_options& options,
 689                                        Symbol_table* symtab,
 690                                        Layout* layout,
 691                                        Read_relocs_data* rd);
 692 #endif
 693
 694 #ifdef HAVE_TARGET_32_LITTLE
 695 template
 696 void
 697 Sized_relobj<32, false>::do_relocate(const General_options& options,
 698                                      const Symbol_table* symtab,
 699                                      const Layout* layout,
 700                                      Output_file* of);
 701 #endif
 702
 703 #ifdef HAVE_TARGET_32_BIG
 704 template
 705 void
 706 Sized_relobj<32, true>::do_relocate(const General_options& options,
 707                                     const Symbol_table* symtab,
 708                                     const Layout* layout,
 709                                     Output_file* of);
 710 #endif
 711
 712 #ifdef HAVE_TARGET_64_LITTLE
 713 template
 714 void
 715 Sized_relobj<64, false>::do_relocate(const General_options& options,
 716                                      const Symbol_table* symtab,
 717                                      const Layout* layout,
 718                                      Output_file* of);
 719 #endif
 720
 721 #ifdef HAVE_TARGET_64_BIG
 722 template
 723 void
 724 Sized_relobj<64, true>::do_relocate(const General_options& options,
 725                                     const Symbol_table* symtab,
 726                                     const Layout* layout,
 727                                     Output_file* of);
 728 #endif
 729
 730 #ifdef HAVE_TARGET_32_LITTLE
 731 template
 732 class Copy_relocs<32, false>;
 733 #endif
 734
 735 #ifdef HAVE_TARGET_32_BIG
 736 template
 737 class Copy_relocs<32, true>;
 738 #endif
 739
 740 #ifdef HAVE_TARGET_64_LITTLE
 741 template
 742 class Copy_relocs<64, false>;
 743 #endif
 744
 745 #ifdef HAVE_TARGET_64_BIG
 746 template
 747 class Copy_relocs<64, true>;
 748 #endif
 749
 750 #ifdef HAVE_TARGET_32_LITTLE
 751 template
 752 void
 753 Copy_relocs<32, false>::emit<elfcpp::SHT_REL>(
 754     Output_data_reloc<elfcpp::SHT_REL, true, 32, false>*);
 755 #endif
 756
 757 #ifdef HAVE_TARGET_32_BIG
 758 template
 759 void
 760 Copy_relocs<32, true>::emit<elfcpp::SHT_REL>(
 761     Output_data_reloc<elfcpp::SHT_REL, true, 32, true>*);
 762 #endif
 763
 764 #ifdef HAVE_TARGET_64_LITTLE
 765 template
 766 void
 767 Copy_relocs<64, false>::emit<elfcpp::SHT_REL>(
 768     Output_data_reloc<elfcpp::SHT_REL, true, 64, false>*);
 769 #endif
 770
 771 #ifdef HAVE_TARGET_64_BIG
 772 template
 773 void
 774 Copy_relocs<64, true>::emit<elfcpp::SHT_REL>(
 775     Output_data_reloc<elfcpp::SHT_REL, true, 64, true>*);
 776 #endif
 777
 778 #ifdef HAVE_TARGET_32_LITTLE
 779 template
 780 void
 781 Copy_relocs<32, false>::emit<elfcpp::SHT_RELA>(
 782     Output_data_reloc<elfcpp::SHT_RELA , true, 32, false>*);
 783 #endif
 784
 785 #ifdef HAVE_TARGET_32_BIG
 786 template
 787 void
 788 Copy_relocs<32, true>::emit<elfcpp::SHT_RELA>(
 789     Output_data_reloc<elfcpp::SHT_RELA, true, 32, true>*);
 790 #endif
 791
 792 #ifdef HAVE_TARGET_64_LITTLE
 793 template
 794 void
 795 Copy_relocs<64, false>::emit<elfcpp::SHT_RELA>(
 796     Output_data_reloc<elfcpp::SHT_RELA, true, 64, false>*);
 797 #endif
 798
 799 #ifdef HAVE_TARGET_64_BIG
 800 template
 801 void
 802 Copy_relocs<64, true>::emit<elfcpp::SHT_RELA>(
 803     Output_data_reloc<elfcpp::SHT_RELA, true, 64, true>*);
 804 #endif
 805
 806 } // End namespace gold.