1 // reloc.cc -- relocate input files for gold.
3 // Copyright 2006, 2007 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.
25 #include "workqueue.h"
34 // Read_relocs methods.
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.
40 Task::Is_runnable_type
41 Read_relocs::is_runnable(Workqueue*)
43 return this->object_->is_locked() ? IS_LOCKED : IS_RUNNABLE;
49 Read_relocs::locks(Workqueue*)
51 return new Task_locker_obj<Object>(*this->object_);
54 // Read the relocations and then start a Scan_relocs_task.
57 Read_relocs::run(Workqueue* workqueue)
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_));
66 // Return a debugging name for the task.
69 Read_relocs::get_name() const
71 return "Read_relocs " + this->object_->name();
74 // Scan_relocs methods.
76 // These tasks scan the relocations read by Read_relocs and mark up
77 // the symbol table to indicate which relocations are required. We
78 // use a lock on the symbol table to keep them from interfering with
81 Task::Is_runnable_type
82 Scan_relocs::is_runnable(Workqueue*)
84 if (!this->symtab_lock_->is_writable() || this->object_->is_locked())
89 // Return the locks we hold: one on the file, one on the symbol table
92 class Scan_relocs::Scan_relocs_locker : public Task_locker
95 Scan_relocs_locker(Object* object, Task_token& symtab_lock, Task* task,
96 Task_token& blocker, Workqueue* workqueue)
97 : objlock_(*object), symtab_locker_(symtab_lock, task),
98 blocker_(blocker, workqueue)
102 Task_locker_obj<Object> objlock_;
103 Task_locker_write symtab_locker_;
104 Task_locker_block blocker_;
108 Scan_relocs::locks(Workqueue* workqueue)
110 return new Scan_relocs_locker(this->object_, *this->symtab_lock_, this,
111 *this->blocker_, workqueue);
117 Scan_relocs::run(Workqueue*)
119 this->object_->scan_relocs(this->options_, this->symtab_, this->layout_,
125 // Return a debugging name for the task.
128 Scan_relocs::get_name() const
130 return "Scan_relocs " + this->object_->name();
133 // Relocate_task methods.
135 // We may have to wait for the output sections to be written.
137 Task::Is_runnable_type
138 Relocate_task::is_runnable(Workqueue*)
140 if (this->object_->relocs_must_follow_section_writes()
141 && this->output_sections_blocker_->is_blocked())
144 if (this->object_->is_locked())
150 // We want to lock the file while we run. We want to unblock
151 // INPUT_SECTIONS_BLOCKER and FINAL_BLOCKER when we are done.
153 class Relocate_task::Relocate_locker : public Task_locker
156 Relocate_locker(Task_token& input_sections_blocker,
157 Task_token& final_blocker, Workqueue* workqueue,
159 : input_sections_blocker_(input_sections_blocker, workqueue),
160 final_blocker_(final_blocker, workqueue),
165 Task_block_token input_sections_blocker_;
166 Task_block_token final_blocker_;
167 Task_locker_obj<Object> objlock_;
171 Relocate_task::locks(Workqueue* workqueue)
173 return new Relocate_locker(*this->input_sections_blocker_,
174 *this->final_blocker_,
182 Relocate_task::run(Workqueue*)
184 this->object_->relocate(this->options_, this->symtab_, this->layout_,
188 // Return a debugging name for the task.
191 Relocate_task::get_name() const
193 return "Relocate_task " + this->object_->name();
196 // Read the relocs and local symbols from the object file and store
197 // the information in RD.
199 template<int size, bool big_endian>
201 Sized_relobj<size, big_endian>::do_read_relocs(Read_relocs_data* rd)
205 unsigned int shnum = this->shnum();
209 rd->relocs.reserve(shnum / 2);
211 std::vector<Map_to_output>& map_sections(this->map_to_output());
213 const unsigned char *pshdrs = this->get_view(this->elf_file_.shoff(),
214 shnum * This::shdr_size,
216 // Skip the first, dummy, section.
217 const unsigned char *ps = pshdrs + This::shdr_size;
218 for (unsigned int i = 1; i < shnum; ++i, ps += This::shdr_size)
220 typename This::Shdr shdr(ps);
222 unsigned int sh_type = shdr.get_sh_type();
223 if (sh_type != elfcpp::SHT_REL && sh_type != elfcpp::SHT_RELA)
226 unsigned int shndx = shdr.get_sh_info();
229 this->error(_("relocation section %u has bad info %u"),
234 Output_section* os = map_sections[shndx].output_section;
238 // We are scanning relocations in order to fill out the GOT and
239 // PLT sections. Relocations for sections which are not
240 // allocated (typically debugging sections) should not add new
241 // GOT and PLT entries. So we skip them.
242 typename This::Shdr secshdr(pshdrs + shndx * This::shdr_size);
243 if ((secshdr.get_sh_flags() & elfcpp::SHF_ALLOC) == 0)
246 if (shdr.get_sh_link() != this->symtab_shndx_)
248 this->error(_("relocation section %u uses unexpected "
250 i, shdr.get_sh_link());
254 off_t sh_size = shdr.get_sh_size();
256 unsigned int reloc_size;
257 if (sh_type == elfcpp::SHT_REL)
258 reloc_size = elfcpp::Elf_sizes<size>::rel_size;
260 reloc_size = elfcpp::Elf_sizes<size>::rela_size;
261 if (reloc_size != shdr.get_sh_entsize())
263 this->error(_("unexpected entsize for reloc section %u: %lu != %u"),
264 i, static_cast<unsigned long>(shdr.get_sh_entsize()),
269 size_t reloc_count = sh_size / reloc_size;
270 if (static_cast<off_t>(reloc_count * reloc_size) != sh_size)
272 this->error(_("reloc section %u size %lu uneven"),
273 i, static_cast<unsigned long>(sh_size));
277 rd->relocs.push_back(Section_relocs());
278 Section_relocs& sr(rd->relocs.back());
280 sr.data_shndx = shndx;
281 sr.contents = this->get_lasting_view(shdr.get_sh_offset(), sh_size,
283 sr.sh_type = sh_type;
284 sr.reloc_count = reloc_count;
285 sr.output_section = os;
286 sr.needs_special_offset_handling = map_sections[shndx].offset == -1;
289 // Read the local symbols.
290 gold_assert(this->symtab_shndx_ != -1U);
291 if (this->symtab_shndx_ == 0 || this->local_symbol_count_ == 0)
292 rd->local_symbols = NULL;
295 typename This::Shdr symtabshdr(pshdrs
296 + this->symtab_shndx_ * This::shdr_size);
297 gold_assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB);
298 const int sym_size = This::sym_size;
299 const unsigned int loccount = this->local_symbol_count_;
300 gold_assert(loccount == symtabshdr.get_sh_info());
301 off_t locsize = loccount * sym_size;
302 rd->local_symbols = this->get_lasting_view(symtabshdr.get_sh_offset(),
307 // Scan the relocs and adjust the symbol table. This looks for
308 // relocations which require GOT/PLT/COPY relocations.
310 template<int size, bool big_endian>
312 Sized_relobj<size, big_endian>::do_scan_relocs(const General_options& options,
313 Symbol_table* symtab,
315 Read_relocs_data* rd)
317 Sized_target<size, big_endian>* target = this->sized_target();
319 const unsigned char* local_symbols;
320 if (rd->local_symbols == NULL)
321 local_symbols = NULL;
323 local_symbols = rd->local_symbols->data();
325 for (Read_relocs_data::Relocs_list::iterator p = rd->relocs.begin();
326 p != rd->relocs.end();
329 target->scan_relocs(options, symtab, layout, this, p->data_shndx,
330 p->sh_type, p->contents->data(), p->reloc_count,
331 p->output_section, p->needs_special_offset_handling,
332 this->local_symbol_count_,
338 if (rd->local_symbols != NULL)
340 delete rd->local_symbols;
341 rd->local_symbols = NULL;
345 // Relocate the input sections and write out the local symbols.
347 template<int size, bool big_endian>
349 Sized_relobj<size, big_endian>::do_relocate(const General_options& options,
350 const Symbol_table* symtab,
351 const Layout* layout,
354 unsigned int shnum = this->shnum();
356 // Read the section headers.
357 const unsigned char* pshdrs = this->get_view(this->elf_file_.shoff(),
358 shnum * This::shdr_size,
364 // Make two passes over the sections. The first one copies the
365 // section data to the output file. The second one applies
368 this->write_sections(pshdrs, of, &views);
370 // Apply relocations.
372 this->relocate_sections(options, symtab, layout, pshdrs, &views);
374 // Write out the accumulated views.
375 for (unsigned int i = 1; i < shnum; ++i)
377 if (views[i].view != NULL)
379 if (views[i].is_input_output_view)
380 of->write_input_output_view(views[i].offset, views[i].view_size,
383 of->write_output_view(views[i].offset, views[i].view_size,
388 // Write out the local symbols.
389 this->write_local_symbols(of, layout->sympool());
392 // Write section data to the output file. PSHDRS points to the
393 // section headers. Record the views in *PVIEWS for use when
396 template<int size, bool big_endian>
398 Sized_relobj<size, big_endian>::write_sections(const unsigned char* pshdrs,
402 unsigned int shnum = this->shnum();
403 std::vector<Map_to_output>& map_sections(this->map_to_output());
405 const unsigned char* p = pshdrs + This::shdr_size;
406 for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size)
408 View_size* pvs = &(*pviews)[i];
412 const Output_section* os = map_sections[i].output_section;
415 off_t output_offset = map_sections[i].offset;
417 typename This::Shdr shdr(p);
419 if (shdr.get_sh_type() == elfcpp::SHT_NOBITS)
424 if (output_offset != -1)
426 view_start = os->offset() + output_offset;
427 view_size = shdr.get_sh_size();
431 view_start = os->offset();
432 view_size = os->data_size();
438 gold_assert(output_offset == -1
439 || (output_offset >= 0
440 && output_offset + view_size <= os->data_size()));
443 if (output_offset == -1)
444 view = of->get_input_output_view(view_start, view_size);
447 view = of->get_output_view(view_start, view_size);
448 this->read(shdr.get_sh_offset(), view_size, view);
452 pvs->address = os->address();
453 if (output_offset != -1)
454 pvs->address += output_offset;
455 pvs->offset = view_start;
456 pvs->view_size = view_size;
457 pvs->is_input_output_view = output_offset == -1;
461 // Relocate section data. VIEWS points to the section data as views
462 // in the output file.
464 template<int size, bool big_endian>
466 Sized_relobj<size, big_endian>::relocate_sections(
467 const General_options& options,
468 const Symbol_table* symtab,
469 const Layout* layout,
470 const unsigned char* pshdrs,
473 unsigned int shnum = this->shnum();
474 Sized_target<size, big_endian>* target = this->sized_target();
476 std::vector<Map_to_output>& map_sections(this->map_to_output());
478 Relocate_info<size, big_endian> relinfo;
479 relinfo.options = &options;
480 relinfo.symtab = symtab;
481 relinfo.layout = layout;
482 relinfo.object = this;
484 const unsigned char* p = pshdrs + This::shdr_size;
485 for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size)
487 typename This::Shdr shdr(p);
489 unsigned int sh_type = shdr.get_sh_type();
490 if (sh_type != elfcpp::SHT_REL && sh_type != elfcpp::SHT_RELA)
493 unsigned int index = shdr.get_sh_info();
494 if (index >= this->shnum())
496 this->error(_("relocation section %u has bad info %u"),
501 Output_section* os = map_sections[index].output_section;
504 // This relocation section is against a section which we
508 off_t output_offset = map_sections[index].offset;
510 gold_assert((*pviews)[index].view != NULL);
512 if (shdr.get_sh_link() != this->symtab_shndx_)
514 gold_error(_("relocation section %u uses unexpected "
516 i, shdr.get_sh_link());
520 off_t sh_size = shdr.get_sh_size();
521 const unsigned char* prelocs = this->get_view(shdr.get_sh_offset(),
524 unsigned int reloc_size;
525 if (sh_type == elfcpp::SHT_REL)
526 reloc_size = elfcpp::Elf_sizes<size>::rel_size;
528 reloc_size = elfcpp::Elf_sizes<size>::rela_size;
530 if (reloc_size != shdr.get_sh_entsize())
532 gold_error(_("unexpected entsize for reloc section %u: %lu != %u"),
533 i, static_cast<unsigned long>(shdr.get_sh_entsize()),
538 size_t reloc_count = sh_size / reloc_size;
539 if (static_cast<off_t>(reloc_count * reloc_size) != sh_size)
541 gold_error(_("reloc section %u size %lu uneven"),
542 i, static_cast<unsigned long>(sh_size));
546 relinfo.reloc_shndx = i;
547 relinfo.data_shndx = index;
548 target->relocate_section(&relinfo,
554 (*pviews)[index].view,
555 (*pviews)[index].address,
556 (*pviews)[index].view_size);
560 // Copy_relocs::Copy_reloc_entry methods.
562 // Return whether we should emit this reloc. We should emit it if the
563 // symbol is still defined in a dynamic object. If we should not emit
564 // it, we clear it, to save ourselves the test next time.
566 template<int size, bool big_endian>
568 Copy_relocs<size, big_endian>::Copy_reloc_entry::should_emit()
570 if (this->sym_ == NULL)
572 if (this->sym_->is_from_dynobj())
578 // Emit a reloc into a SHT_REL section.
580 template<int size, bool big_endian>
582 Copy_relocs<size, big_endian>::Copy_reloc_entry::emit(
583 Output_data_reloc<elfcpp::SHT_REL, true, size, big_endian>* reloc_data)
585 this->sym_->set_needs_dynsym_entry();
586 reloc_data->add_global(this->sym_, this->reloc_type_, this->output_section_,
587 this->relobj_, this->shndx_, this->address_);
590 // Emit a reloc into a SHT_RELA section.
592 template<int size, bool big_endian>
594 Copy_relocs<size, big_endian>::Copy_reloc_entry::emit(
595 Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian>* reloc_data)
597 this->sym_->set_needs_dynsym_entry();
598 reloc_data->add_global(this->sym_, this->reloc_type_, this->output_section_,
599 this->relobj_, this->shndx_, this->address_,
603 // Copy_relocs methods.
605 // Return whether we need a COPY reloc for a relocation against GSYM.
606 // The relocation is being applied to section SHNDX in OBJECT.
608 template<int size, bool big_endian>
610 Copy_relocs<size, big_endian>::need_copy_reloc(
611 const General_options*,
614 Sized_symbol<size>* sym)
616 // FIXME: Handle -z nocopyrelocs.
618 if (sym->symsize() == 0)
621 // If this is a readonly section, then we need a COPY reloc.
622 // Otherwise we can use a dynamic reloc.
623 if ((object->section_flags(shndx) & elfcpp::SHF_WRITE) == 0)
631 template<int size, bool big_endian>
633 Copy_relocs<size, big_endian>::save(
637 Output_section* output_section,
638 const elfcpp::Rel<size, big_endian>& rel)
640 unsigned int reloc_type = elfcpp::elf_r_type<size>(rel.get_r_info());
641 this->entries_.push_back(Copy_reloc_entry(sym, reloc_type, relobj, shndx,
643 rel.get_r_offset(), 0));
646 // Save a Rela reloc.
648 template<int size, bool big_endian>
650 Copy_relocs<size, big_endian>::save(
654 Output_section* output_section,
655 const elfcpp::Rela<size, big_endian>& rela)
657 unsigned int reloc_type = elfcpp::elf_r_type<size>(rela.get_r_info());
658 this->entries_.push_back(Copy_reloc_entry(sym, reloc_type, relobj, shndx,
661 rela.get_r_addend()));
664 // Return whether there are any relocs to emit. We don't want to emit
665 // a reloc if the symbol is no longer defined in a dynamic object.
667 template<int size, bool big_endian>
669 Copy_relocs<size, big_endian>::any_to_emit()
671 for (typename Copy_reloc_entries::iterator p = this->entries_.begin();
672 p != this->entries_.end();
675 if (p->should_emit())
683 template<int size, bool big_endian>
684 template<int sh_type>
686 Copy_relocs<size, big_endian>::emit(
687 Output_data_reloc<sh_type, true, size, big_endian>* reloc_data)
689 for (typename Copy_reloc_entries::iterator p = this->entries_.begin();
690 p != this->entries_.end();
693 if (p->should_emit())
698 // Track_relocs methods.
700 // Initialize the class to track the relocs. This gets the object,
701 // the reloc section index, and the type of the relocs. This returns
702 // false if something goes wrong.
704 template<int size, bool big_endian>
706 Track_relocs<size, big_endian>::initialize(
708 unsigned int reloc_shndx,
709 unsigned int reloc_type)
711 // If RELOC_SHNDX is -1U, it means there is more than one reloc
712 // section for the .eh_frame section. We can't handle that case.
713 if (reloc_shndx == -1U)
716 // If RELOC_SHNDX is 0, there is no reloc section.
717 if (reloc_shndx == 0)
720 // Get the contents of the reloc section.
721 this->prelocs_ = object->section_contents(reloc_shndx, &this->len_, false);
723 if (reloc_type == elfcpp::SHT_REL)
724 this->reloc_size_ = elfcpp::Elf_sizes<size>::rel_size;
725 else if (reloc_type == elfcpp::SHT_RELA)
726 this->reloc_size_ = elfcpp::Elf_sizes<size>::rela_size;
730 if (this->len_ % this->reloc_size_ != 0)
732 object->error(_("reloc section size %zu is not a multiple of "
734 static_cast<size_t>(this->len_),
742 // Return the offset of the next reloc, or -1 if there isn't one.
744 template<int size, bool big_endian>
746 Track_relocs<size, big_endian>::next_offset() const
748 if (this->pos_ >= this->len_)
751 // Rel and Rela start out the same, so we can always use Rel to find
752 // the r_offset value.
753 elfcpp::Rel<size, big_endian> rel(this->prelocs_ + this->pos_);
754 return rel.get_r_offset();
757 // Return the index of the symbol referenced by the next reloc, or -1U
758 // if there aren't any more relocs.
760 template<int size, bool big_endian>
762 Track_relocs<size, big_endian>::next_symndx() const
764 if (this->pos_ >= this->len_)
767 // Rel and Rela start out the same, so we can use Rel to find the
769 elfcpp::Rel<size, big_endian> rel(this->prelocs_ + this->pos_);
770 return elfcpp::elf_r_sym<size>(rel.get_r_info());
773 // Advance to the next reloc whose r_offset is greater than or equal
774 // to OFFSET. Return the number of relocs we skip.
776 template<int size, bool big_endian>
778 Track_relocs<size, big_endian>::advance(off_t offset)
781 while (this->pos_ < this->len_)
783 // Rel and Rela start out the same, so we can always use Rel to
784 // find the r_offset value.
785 elfcpp::Rel<size, big_endian> rel(this->prelocs_ + this->pos_);
786 if (static_cast<off_t>(rel.get_r_offset()) >= offset)
789 this->pos_ += this->reloc_size_;
794 // Instantiate the templates we need. We could use the configure
795 // script to restrict this to only the ones for implemented targets.
797 #ifdef HAVE_TARGET_32_LITTLE
800 Sized_relobj<32, false>::do_read_relocs(Read_relocs_data* rd);
803 #ifdef HAVE_TARGET_32_BIG
806 Sized_relobj<32, true>::do_read_relocs(Read_relocs_data* rd);
809 #ifdef HAVE_TARGET_64_LITTLE
812 Sized_relobj<64, false>::do_read_relocs(Read_relocs_data* rd);
815 #ifdef HAVE_TARGET_64_BIG
818 Sized_relobj<64, true>::do_read_relocs(Read_relocs_data* rd);
821 #ifdef HAVE_TARGET_32_LITTLE
824 Sized_relobj<32, false>::do_scan_relocs(const General_options& options,
825 Symbol_table* symtab,
827 Read_relocs_data* rd);
830 #ifdef HAVE_TARGET_32_BIG
833 Sized_relobj<32, true>::do_scan_relocs(const General_options& options,
834 Symbol_table* symtab,
836 Read_relocs_data* rd);
839 #ifdef HAVE_TARGET_64_LITTLE
842 Sized_relobj<64, false>::do_scan_relocs(const General_options& options,
843 Symbol_table* symtab,
845 Read_relocs_data* rd);
848 #ifdef HAVE_TARGET_64_BIG
851 Sized_relobj<64, true>::do_scan_relocs(const General_options& options,
852 Symbol_table* symtab,
854 Read_relocs_data* rd);
857 #ifdef HAVE_TARGET_32_LITTLE
860 Sized_relobj<32, false>::do_relocate(const General_options& options,
861 const Symbol_table* symtab,
862 const Layout* layout,
866 #ifdef HAVE_TARGET_32_BIG
869 Sized_relobj<32, true>::do_relocate(const General_options& options,
870 const Symbol_table* symtab,
871 const Layout* layout,
875 #ifdef HAVE_TARGET_64_LITTLE
878 Sized_relobj<64, false>::do_relocate(const General_options& options,
879 const Symbol_table* symtab,
880 const Layout* layout,
884 #ifdef HAVE_TARGET_64_BIG
887 Sized_relobj<64, true>::do_relocate(const General_options& options,
888 const Symbol_table* symtab,
889 const Layout* layout,
893 #ifdef HAVE_TARGET_32_LITTLE
895 class Copy_relocs<32, false>;
898 #ifdef HAVE_TARGET_32_BIG
900 class Copy_relocs<32, true>;
903 #ifdef HAVE_TARGET_64_LITTLE
905 class Copy_relocs<64, false>;
908 #ifdef HAVE_TARGET_64_BIG
910 class Copy_relocs<64, true>;
913 #ifdef HAVE_TARGET_32_LITTLE
916 Copy_relocs<32, false>::emit<elfcpp::SHT_REL>(
917 Output_data_reloc<elfcpp::SHT_REL, true, 32, false>*);
920 #ifdef HAVE_TARGET_32_BIG
923 Copy_relocs<32, true>::emit<elfcpp::SHT_REL>(
924 Output_data_reloc<elfcpp::SHT_REL, true, 32, true>*);
927 #ifdef HAVE_TARGET_64_LITTLE
930 Copy_relocs<64, false>::emit<elfcpp::SHT_REL>(
931 Output_data_reloc<elfcpp::SHT_REL, true, 64, false>*);
934 #ifdef HAVE_TARGET_64_BIG
937 Copy_relocs<64, true>::emit<elfcpp::SHT_REL>(
938 Output_data_reloc<elfcpp::SHT_REL, true, 64, true>*);
941 #ifdef HAVE_TARGET_32_LITTLE
944 Copy_relocs<32, false>::emit<elfcpp::SHT_RELA>(
945 Output_data_reloc<elfcpp::SHT_RELA , true, 32, false>*);
948 #ifdef HAVE_TARGET_32_BIG
951 Copy_relocs<32, true>::emit<elfcpp::SHT_RELA>(
952 Output_data_reloc<elfcpp::SHT_RELA, true, 32, true>*);
955 #ifdef HAVE_TARGET_64_LITTLE
958 Copy_relocs<64, false>::emit<elfcpp::SHT_RELA>(
959 Output_data_reloc<elfcpp::SHT_RELA, true, 64, false>*);
962 #ifdef HAVE_TARGET_64_BIG
965 Copy_relocs<64, true>::emit<elfcpp::SHT_RELA>(
966 Output_data_reloc<elfcpp::SHT_RELA, true, 64, true>*);
969 #ifdef HAVE_TARGET_32_LITTLE
971 class Track_relocs<32, false>;
974 #ifdef HAVE_TARGET_32_BIG
976 class Track_relocs<32, true>;
979 #ifdef HAVE_TARGET_64_LITTLE
981 class Track_relocs<64, false>;
984 #ifdef HAVE_TARGET_64_BIG
986 class Track_relocs<64, true>;
989 } // End namespace gold.