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61ba1cf9 ILT |
1 | // reloc.cc -- relocate input files for gold. |
2 | ||
ebdbb458 | 3 | // Copyright 2006, 2007, 2008 Free Software Foundation, Inc. |
6cb15b7f ILT |
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 | ||
61ba1cf9 ILT |
23 | #include "gold.h" |
24 | ||
cb295612 ILT |
25 | #include <algorithm> |
26 | ||
61ba1cf9 | 27 | #include "workqueue.h" |
5a6f7e2d | 28 | #include "symtab.h" |
61ba1cf9 | 29 | #include "output.h" |
a9a60db6 ILT |
30 | #include "merge.h" |
31 | #include "object.h" | |
7019cd25 | 32 | #include "target-reloc.h" |
61ba1cf9 ILT |
33 | #include "reloc.h" |
34 | ||
35 | namespace gold | |
36 | { | |
37 | ||
92e059d8 ILT |
38 | // Read_relocs methods. |
39 | ||
40 | // These tasks just read the relocation information from the file. | |
41 | // After reading it, the start another task to process the | |
42 | // information. These tasks requires access to the file. | |
43 | ||
17a1d0a9 ILT |
44 | Task_token* |
45 | Read_relocs::is_runnable() | |
92e059d8 | 46 | { |
17a1d0a9 | 47 | return this->object_->is_locked() ? this->object_->token() : NULL; |
92e059d8 ILT |
48 | } |
49 | ||
50 | // Lock the file. | |
51 | ||
17a1d0a9 ILT |
52 | void |
53 | Read_relocs::locks(Task_locker* tl) | |
92e059d8 | 54 | { |
17a1d0a9 | 55 | tl->add(this, this->object_->token()); |
92e059d8 ILT |
56 | } |
57 | ||
58 | // Read the relocations and then start a Scan_relocs_task. | |
59 | ||
60 | void | |
61 | Read_relocs::run(Workqueue* workqueue) | |
62 | { | |
63 | Read_relocs_data *rd = new Read_relocs_data; | |
64 | this->object_->read_relocs(rd); | |
17a1d0a9 ILT |
65 | this->object_->release(); |
66 | ||
da769d56 ILT |
67 | workqueue->queue_next(new Scan_relocs(this->options_, this->symtab_, |
68 | this->layout_, this->object_, rd, | |
69 | this->symtab_lock_, this->blocker_)); | |
92e059d8 ILT |
70 | } |
71 | ||
c7912668 ILT |
72 | // Return a debugging name for the task. |
73 | ||
74 | std::string | |
75 | Read_relocs::get_name() const | |
76 | { | |
77 | return "Read_relocs " + this->object_->name(); | |
78 | } | |
79 | ||
92e059d8 ILT |
80 | // Scan_relocs methods. |
81 | ||
82 | // These tasks scan the relocations read by Read_relocs and mark up | |
83 | // the symbol table to indicate which relocations are required. We | |
84 | // use a lock on the symbol table to keep them from interfering with | |
85 | // each other. | |
86 | ||
17a1d0a9 ILT |
87 | Task_token* |
88 | Scan_relocs::is_runnable() | |
92e059d8 | 89 | { |
17a1d0a9 ILT |
90 | if (!this->symtab_lock_->is_writable()) |
91 | return this->symtab_lock_; | |
92 | if (this->object_->is_locked()) | |
93 | return this->object_->token(); | |
94 | return NULL; | |
92e059d8 ILT |
95 | } |
96 | ||
97 | // Return the locks we hold: one on the file, one on the symbol table | |
98 | // and one blocker. | |
99 | ||
17a1d0a9 ILT |
100 | void |
101 | Scan_relocs::locks(Task_locker* tl) | |
92e059d8 | 102 | { |
17a1d0a9 ILT |
103 | tl->add(this, this->object_->token()); |
104 | tl->add(this, this->symtab_lock_); | |
105 | tl->add(this, this->blocker_); | |
92e059d8 ILT |
106 | } |
107 | ||
108 | // Scan the relocs. | |
109 | ||
110 | void | |
111 | Scan_relocs::run(Workqueue*) | |
112 | { | |
ead1e424 ILT |
113 | this->object_->scan_relocs(this->options_, this->symtab_, this->layout_, |
114 | this->rd_); | |
17a1d0a9 | 115 | this->object_->release(); |
92e059d8 ILT |
116 | delete this->rd_; |
117 | this->rd_ = NULL; | |
118 | } | |
119 | ||
c7912668 ILT |
120 | // Return a debugging name for the task. |
121 | ||
122 | std::string | |
123 | Scan_relocs::get_name() const | |
124 | { | |
125 | return "Scan_relocs " + this->object_->name(); | |
126 | } | |
127 | ||
61ba1cf9 ILT |
128 | // Relocate_task methods. |
129 | ||
730cdc88 | 130 | // We may have to wait for the output sections to be written. |
61ba1cf9 | 131 | |
17a1d0a9 ILT |
132 | Task_token* |
133 | Relocate_task::is_runnable() | |
61ba1cf9 | 134 | { |
730cdc88 ILT |
135 | if (this->object_->relocs_must_follow_section_writes() |
136 | && this->output_sections_blocker_->is_blocked()) | |
17a1d0a9 | 137 | return this->output_sections_blocker_; |
730cdc88 | 138 | |
c7912668 | 139 | if (this->object_->is_locked()) |
17a1d0a9 | 140 | return this->object_->token(); |
c7912668 | 141 | |
17a1d0a9 | 142 | return NULL; |
61ba1cf9 ILT |
143 | } |
144 | ||
145 | // We want to lock the file while we run. We want to unblock | |
730cdc88 | 146 | // INPUT_SECTIONS_BLOCKER and FINAL_BLOCKER when we are done. |
17a1d0a9 | 147 | // INPUT_SECTIONS_BLOCKER may be NULL. |
61ba1cf9 | 148 | |
17a1d0a9 ILT |
149 | void |
150 | Relocate_task::locks(Task_locker* tl) | |
61ba1cf9 | 151 | { |
17a1d0a9 ILT |
152 | if (this->input_sections_blocker_ != NULL) |
153 | tl->add(this, this->input_sections_blocker_); | |
154 | tl->add(this, this->final_blocker_); | |
155 | tl->add(this, this->object_->token()); | |
61ba1cf9 ILT |
156 | } |
157 | ||
158 | // Run the task. | |
159 | ||
160 | void | |
161 | Relocate_task::run(Workqueue*) | |
162 | { | |
92e059d8 | 163 | this->object_->relocate(this->options_, this->symtab_, this->layout_, |
61ba1cf9 | 164 | this->of_); |
cb295612 ILT |
165 | |
166 | // This is normally the last thing we will do with an object, so | |
167 | // uncache all views. | |
168 | this->object_->clear_view_cache_marks(); | |
169 | ||
17a1d0a9 | 170 | this->object_->release(); |
61ba1cf9 ILT |
171 | } |
172 | ||
c7912668 ILT |
173 | // Return a debugging name for the task. |
174 | ||
175 | std::string | |
176 | Relocate_task::get_name() const | |
177 | { | |
178 | return "Relocate_task " + this->object_->name(); | |
179 | } | |
180 | ||
92e059d8 ILT |
181 | // Read the relocs and local symbols from the object file and store |
182 | // the information in RD. | |
183 | ||
184 | template<int size, bool big_endian> | |
185 | void | |
f6ce93d6 | 186 | Sized_relobj<size, big_endian>::do_read_relocs(Read_relocs_data* rd) |
92e059d8 ILT |
187 | { |
188 | rd->relocs.clear(); | |
189 | ||
190 | unsigned int shnum = this->shnum(); | |
191 | if (shnum == 0) | |
192 | return; | |
193 | ||
194 | rd->relocs.reserve(shnum / 2); | |
195 | ||
ef9beddf ILT |
196 | const Output_sections& out_sections(this->output_sections()); |
197 | const std::vector<Address>& out_offsets(this->section_offsets_); | |
730cdc88 | 198 | |
645f8123 | 199 | const unsigned char *pshdrs = this->get_view(this->elf_file_.shoff(), |
9eb9fa57 | 200 | shnum * This::shdr_size, |
39d0cb0e | 201 | true, true); |
92e059d8 ILT |
202 | // Skip the first, dummy, section. |
203 | const unsigned char *ps = pshdrs + This::shdr_size; | |
204 | for (unsigned int i = 1; i < shnum; ++i, ps += This::shdr_size) | |
205 | { | |
206 | typename This::Shdr shdr(ps); | |
207 | ||
208 | unsigned int sh_type = shdr.get_sh_type(); | |
209 | if (sh_type != elfcpp::SHT_REL && sh_type != elfcpp::SHT_RELA) | |
210 | continue; | |
211 | ||
d491d34e | 212 | unsigned int shndx = this->adjust_shndx(shdr.get_sh_info()); |
92e059d8 ILT |
213 | if (shndx >= shnum) |
214 | { | |
75f2446e ILT |
215 | this->error(_("relocation section %u has bad info %u"), |
216 | i, shndx); | |
217 | continue; | |
92e059d8 ILT |
218 | } |
219 | ||
ef9beddf | 220 | Output_section* os = out_sections[shndx]; |
730cdc88 | 221 | if (os == NULL) |
92e059d8 ILT |
222 | continue; |
223 | ||
ead1e424 ILT |
224 | // We are scanning relocations in order to fill out the GOT and |
225 | // PLT sections. Relocations for sections which are not | |
226 | // allocated (typically debugging sections) should not add new | |
6a74a719 | 227 | // GOT and PLT entries. So we skip them unless this is a |
7019cd25 ILT |
228 | // relocatable link or we need to emit relocations. |
229 | typename This::Shdr secshdr(pshdrs + shndx * This::shdr_size); | |
230 | bool is_section_allocated = ((secshdr.get_sh_flags() & elfcpp::SHF_ALLOC) | |
231 | != 0); | |
232 | if (!is_section_allocated | |
8851ecca ILT |
233 | && !parameters->options().relocatable() |
234 | && !parameters->options().emit_relocs()) | |
7019cd25 | 235 | continue; |
ead1e424 | 236 | |
d491d34e | 237 | if (this->adjust_shndx(shdr.get_sh_link()) != this->symtab_shndx_) |
92e059d8 | 238 | { |
75f2446e ILT |
239 | this->error(_("relocation section %u uses unexpected " |
240 | "symbol table %u"), | |
d491d34e | 241 | i, this->adjust_shndx(shdr.get_sh_link())); |
75f2446e | 242 | continue; |
92e059d8 ILT |
243 | } |
244 | ||
245 | off_t sh_size = shdr.get_sh_size(); | |
246 | ||
247 | unsigned int reloc_size; | |
248 | if (sh_type == elfcpp::SHT_REL) | |
249 | reloc_size = elfcpp::Elf_sizes<size>::rel_size; | |
250 | else | |
251 | reloc_size = elfcpp::Elf_sizes<size>::rela_size; | |
252 | if (reloc_size != shdr.get_sh_entsize()) | |
253 | { | |
75f2446e ILT |
254 | this->error(_("unexpected entsize for reloc section %u: %lu != %u"), |
255 | i, static_cast<unsigned long>(shdr.get_sh_entsize()), | |
256 | reloc_size); | |
257 | continue; | |
92e059d8 ILT |
258 | } |
259 | ||
260 | size_t reloc_count = sh_size / reloc_size; | |
f5c3f225 | 261 | if (static_cast<off_t>(reloc_count * reloc_size) != sh_size) |
92e059d8 | 262 | { |
75f2446e ILT |
263 | this->error(_("reloc section %u size %lu uneven"), |
264 | i, static_cast<unsigned long>(sh_size)); | |
265 | continue; | |
92e059d8 ILT |
266 | } |
267 | ||
268 | rd->relocs.push_back(Section_relocs()); | |
269 | Section_relocs& sr(rd->relocs.back()); | |
270 | sr.reloc_shndx = i; | |
271 | sr.data_shndx = shndx; | |
9eb9fa57 | 272 | sr.contents = this->get_lasting_view(shdr.get_sh_offset(), sh_size, |
39d0cb0e | 273 | true, true); |
92e059d8 ILT |
274 | sr.sh_type = sh_type; |
275 | sr.reloc_count = reloc_count; | |
730cdc88 | 276 | sr.output_section = os; |
a45248e0 | 277 | sr.needs_special_offset_handling = out_offsets[shndx] == invalid_address; |
7019cd25 | 278 | sr.is_data_section_allocated = is_section_allocated; |
92e059d8 ILT |
279 | } |
280 | ||
281 | // Read the local symbols. | |
a3ad94ed | 282 | gold_assert(this->symtab_shndx_ != -1U); |
645f8123 | 283 | if (this->symtab_shndx_ == 0 || this->local_symbol_count_ == 0) |
92e059d8 ILT |
284 | rd->local_symbols = NULL; |
285 | else | |
286 | { | |
287 | typename This::Shdr symtabshdr(pshdrs | |
645f8123 | 288 | + this->symtab_shndx_ * This::shdr_size); |
a3ad94ed | 289 | gold_assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB); |
92e059d8 ILT |
290 | const int sym_size = This::sym_size; |
291 | const unsigned int loccount = this->local_symbol_count_; | |
a3ad94ed | 292 | gold_assert(loccount == symtabshdr.get_sh_info()); |
92e059d8 ILT |
293 | off_t locsize = loccount * sym_size; |
294 | rd->local_symbols = this->get_lasting_view(symtabshdr.get_sh_offset(), | |
39d0cb0e | 295 | locsize, true, true); |
92e059d8 ILT |
296 | } |
297 | } | |
298 | ||
299 | // Scan the relocs and adjust the symbol table. This looks for | |
300 | // relocations which require GOT/PLT/COPY relocations. | |
301 | ||
302 | template<int size, bool big_endian> | |
303 | void | |
f6ce93d6 | 304 | Sized_relobj<size, big_endian>::do_scan_relocs(const General_options& options, |
92e059d8 | 305 | Symbol_table* symtab, |
ead1e424 | 306 | Layout* layout, |
92e059d8 ILT |
307 | Read_relocs_data* rd) |
308 | { | |
309 | Sized_target<size, big_endian>* target = this->sized_target(); | |
310 | ||
311 | const unsigned char* local_symbols; | |
312 | if (rd->local_symbols == NULL) | |
313 | local_symbols = NULL; | |
314 | else | |
315 | local_symbols = rd->local_symbols->data(); | |
316 | ||
317 | for (Read_relocs_data::Relocs_list::iterator p = rd->relocs.begin(); | |
318 | p != rd->relocs.end(); | |
319 | ++p) | |
320 | { | |
8851ecca | 321 | if (!parameters->options().relocatable()) |
7019cd25 ILT |
322 | { |
323 | // As noted above, when not generating an object file, we | |
324 | // only scan allocated sections. We may see a non-allocated | |
325 | // section here if we are emitting relocs. | |
326 | if (p->is_data_section_allocated) | |
327 | target->scan_relocs(options, symtab, layout, this, p->data_shndx, | |
328 | p->sh_type, p->contents->data(), | |
329 | p->reloc_count, p->output_section, | |
330 | p->needs_special_offset_handling, | |
331 | this->local_symbol_count_, | |
332 | local_symbols); | |
8851ecca | 333 | if (parameters->options().emit_relocs()) |
7019cd25 ILT |
334 | this->emit_relocs_scan(options, symtab, layout, local_symbols, p); |
335 | } | |
6a74a719 ILT |
336 | else |
337 | { | |
338 | Relocatable_relocs* rr = this->relocatable_relocs(p->reloc_shndx); | |
339 | gold_assert(rr != NULL); | |
340 | rr->set_reloc_count(p->reloc_count); | |
341 | target->scan_relocatable_relocs(options, symtab, layout, this, | |
342 | p->data_shndx, p->sh_type, | |
343 | p->contents->data(), | |
344 | p->reloc_count, | |
345 | p->output_section, | |
346 | p->needs_special_offset_handling, | |
347 | this->local_symbol_count_, | |
348 | local_symbols, | |
349 | rr); | |
350 | } | |
351 | ||
92e059d8 ILT |
352 | delete p->contents; |
353 | p->contents = NULL; | |
354 | } | |
355 | ||
356 | if (rd->local_symbols != NULL) | |
357 | { | |
358 | delete rd->local_symbols; | |
359 | rd->local_symbols = NULL; | |
360 | } | |
361 | } | |
362 | ||
7019cd25 ILT |
363 | // This is a strategy class we use when scanning for --emit-relocs. |
364 | ||
365 | template<int sh_type> | |
366 | class Emit_relocs_strategy | |
367 | { | |
368 | public: | |
369 | // A local non-section symbol. | |
370 | inline Relocatable_relocs::Reloc_strategy | |
68943102 | 371 | local_non_section_strategy(unsigned int, Relobj*, unsigned int) |
7019cd25 ILT |
372 | { return Relocatable_relocs::RELOC_COPY; } |
373 | ||
374 | // A local section symbol. | |
375 | inline Relocatable_relocs::Reloc_strategy | |
376 | local_section_strategy(unsigned int, Relobj*) | |
377 | { | |
378 | if (sh_type == elfcpp::SHT_RELA) | |
379 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_RELA; | |
380 | else | |
381 | { | |
382 | // The addend is stored in the section contents. Since this | |
383 | // is not a relocatable link, we are going to apply the | |
384 | // relocation contents to the section as usual. This means | |
385 | // that we have no way to record the original addend. If the | |
386 | // original addend is not zero, there is basically no way for | |
387 | // the user to handle this correctly. Caveat emptor. | |
388 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_0; | |
389 | } | |
390 | } | |
391 | ||
392 | // A global symbol. | |
393 | inline Relocatable_relocs::Reloc_strategy | |
394 | global_strategy(unsigned int, Relobj*, unsigned int) | |
395 | { return Relocatable_relocs::RELOC_COPY; } | |
396 | }; | |
397 | ||
398 | // Scan the input relocations for --emit-relocs. | |
399 | ||
400 | template<int size, bool big_endian> | |
401 | void | |
402 | Sized_relobj<size, big_endian>::emit_relocs_scan( | |
403 | const General_options& options, | |
404 | Symbol_table* symtab, | |
405 | Layout* layout, | |
406 | const unsigned char* plocal_syms, | |
407 | const Read_relocs_data::Relocs_list::iterator& p) | |
408 | { | |
409 | Relocatable_relocs* rr = this->relocatable_relocs(p->reloc_shndx); | |
410 | gold_assert(rr != NULL); | |
411 | rr->set_reloc_count(p->reloc_count); | |
412 | ||
413 | if (p->sh_type == elfcpp::SHT_REL) | |
414 | this->emit_relocs_scan_reltype<elfcpp::SHT_REL>(options, symtab, layout, | |
415 | plocal_syms, p, rr); | |
416 | else | |
417 | { | |
418 | gold_assert(p->sh_type == elfcpp::SHT_RELA); | |
419 | this->emit_relocs_scan_reltype<elfcpp::SHT_RELA>(options, symtab, | |
420 | layout, plocal_syms, p, | |
421 | rr); | |
422 | } | |
423 | } | |
424 | ||
425 | // Scan the input relocation for --emit-relocs, templatized on the | |
426 | // type of the relocation section. | |
427 | ||
428 | template<int size, bool big_endian> | |
429 | template<int sh_type> | |
430 | void | |
431 | Sized_relobj<size, big_endian>::emit_relocs_scan_reltype( | |
432 | const General_options& options, | |
433 | Symbol_table* symtab, | |
434 | Layout* layout, | |
435 | const unsigned char* plocal_syms, | |
436 | const Read_relocs_data::Relocs_list::iterator& p, | |
437 | Relocatable_relocs* rr) | |
438 | { | |
439 | scan_relocatable_relocs<size, big_endian, sh_type, | |
440 | Emit_relocs_strategy<sh_type> >( | |
441 | options, | |
442 | symtab, | |
443 | layout, | |
444 | this, | |
445 | p->data_shndx, | |
446 | p->contents->data(), | |
447 | p->reloc_count, | |
448 | p->output_section, | |
449 | p->needs_special_offset_handling, | |
450 | this->local_symbol_count_, | |
451 | plocal_syms, | |
452 | rr); | |
453 | } | |
454 | ||
61ba1cf9 ILT |
455 | // Relocate the input sections and write out the local symbols. |
456 | ||
457 | template<int size, bool big_endian> | |
458 | void | |
f6ce93d6 | 459 | Sized_relobj<size, big_endian>::do_relocate(const General_options& options, |
61ba1cf9 | 460 | const Symbol_table* symtab, |
92e059d8 | 461 | const Layout* layout, |
61ba1cf9 ILT |
462 | Output_file* of) |
463 | { | |
464 | unsigned int shnum = this->shnum(); | |
465 | ||
466 | // Read the section headers. | |
645f8123 | 467 | const unsigned char* pshdrs = this->get_view(this->elf_file_.shoff(), |
9eb9fa57 | 468 | shnum * This::shdr_size, |
39d0cb0e | 469 | true, true); |
61ba1cf9 ILT |
470 | |
471 | Views views; | |
472 | views.resize(shnum); | |
473 | ||
474 | // Make two passes over the sections. The first one copies the | |
475 | // section data to the output file. The second one applies | |
476 | // relocations. | |
477 | ||
478 | this->write_sections(pshdrs, of, &views); | |
479 | ||
a9a60db6 ILT |
480 | // To speed up relocations, we set up hash tables for fast lookup of |
481 | // input offsets to output addresses. | |
482 | this->initialize_input_to_output_maps(); | |
483 | ||
61ba1cf9 ILT |
484 | // Apply relocations. |
485 | ||
92e059d8 | 486 | this->relocate_sections(options, symtab, layout, pshdrs, &views); |
61ba1cf9 | 487 | |
a9a60db6 ILT |
488 | // After we've done the relocations, we release the hash tables, |
489 | // since we no longer need them. | |
490 | this->free_input_to_output_maps(); | |
491 | ||
61ba1cf9 ILT |
492 | // Write out the accumulated views. |
493 | for (unsigned int i = 1; i < shnum; ++i) | |
494 | { | |
495 | if (views[i].view != NULL) | |
730cdc88 | 496 | { |
96803768 ILT |
497 | if (!views[i].is_postprocessing_view) |
498 | { | |
499 | if (views[i].is_input_output_view) | |
500 | of->write_input_output_view(views[i].offset, | |
501 | views[i].view_size, | |
502 | views[i].view); | |
503 | else | |
504 | of->write_output_view(views[i].offset, views[i].view_size, | |
505 | views[i].view); | |
506 | } | |
730cdc88 | 507 | } |
61ba1cf9 ILT |
508 | } |
509 | ||
510 | // Write out the local symbols. | |
d491d34e ILT |
511 | this->write_local_symbols(of, layout->sympool(), layout->dynpool(), |
512 | layout->symtab_xindex(), layout->dynsym_xindex()); | |
cb295612 ILT |
513 | |
514 | // We should no longer need the local symbol values. | |
515 | this->clear_local_symbols(); | |
61ba1cf9 ILT |
516 | } |
517 | ||
cb295612 ILT |
518 | // Sort a Read_multiple vector by file offset. |
519 | struct Read_multiple_compare | |
520 | { | |
521 | inline bool | |
522 | operator()(const File_read::Read_multiple_entry& rme1, | |
523 | const File_read::Read_multiple_entry& rme2) const | |
524 | { return rme1.file_offset < rme2.file_offset; } | |
525 | }; | |
526 | ||
61ba1cf9 ILT |
527 | // Write section data to the output file. PSHDRS points to the |
528 | // section headers. Record the views in *PVIEWS for use when | |
529 | // relocating. | |
530 | ||
531 | template<int size, bool big_endian> | |
532 | void | |
f6ce93d6 | 533 | Sized_relobj<size, big_endian>::write_sections(const unsigned char* pshdrs, |
61ba1cf9 | 534 | Output_file* of, |
cb295612 | 535 | Views* pviews) |
61ba1cf9 ILT |
536 | { |
537 | unsigned int shnum = this->shnum(); | |
ef9beddf ILT |
538 | const Output_sections& out_sections(this->output_sections()); |
539 | const std::vector<Address>& out_offsets(this->section_offsets_); | |
61ba1cf9 | 540 | |
cb295612 ILT |
541 | File_read::Read_multiple rm; |
542 | bool is_sorted = true; | |
543 | ||
61ba1cf9 ILT |
544 | const unsigned char* p = pshdrs + This::shdr_size; |
545 | for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size) | |
546 | { | |
547 | View_size* pvs = &(*pviews)[i]; | |
548 | ||
549 | pvs->view = NULL; | |
550 | ||
ef9beddf | 551 | const Output_section* os = out_sections[i]; |
61ba1cf9 ILT |
552 | if (os == NULL) |
553 | continue; | |
ef9beddf | 554 | Address output_offset = out_offsets[i]; |
61ba1cf9 ILT |
555 | |
556 | typename This::Shdr shdr(p); | |
557 | ||
558 | if (shdr.get_sh_type() == elfcpp::SHT_NOBITS) | |
559 | continue; | |
560 | ||
8851ecca ILT |
561 | if ((parameters->options().relocatable() |
562 | || parameters->options().emit_relocs()) | |
6a74a719 ILT |
563 | && (shdr.get_sh_type() == elfcpp::SHT_REL |
564 | || shdr.get_sh_type() == elfcpp::SHT_RELA) | |
565 | && (shdr.get_sh_flags() & elfcpp::SHF_ALLOC) == 0) | |
566 | { | |
7019cd25 ILT |
567 | // This is a reloc section in a relocatable link or when |
568 | // emitting relocs. We don't need to read the input file. | |
569 | // The size and file offset are stored in the | |
570 | // Relocatable_relocs structure. | |
6a74a719 ILT |
571 | Relocatable_relocs* rr = this->relocatable_relocs(i); |
572 | gold_assert(rr != NULL); | |
573 | Output_data* posd = rr->output_data(); | |
574 | gold_assert(posd != NULL); | |
575 | ||
576 | pvs->offset = posd->offset(); | |
577 | pvs->view_size = posd->data_size(); | |
578 | pvs->view = of->get_output_view(pvs->offset, pvs->view_size); | |
579 | pvs->address = posd->address(); | |
580 | pvs->is_input_output_view = false; | |
581 | pvs->is_postprocessing_view = false; | |
582 | ||
583 | continue; | |
584 | } | |
585 | ||
96803768 ILT |
586 | // In the normal case, this input section is simply mapped to |
587 | // the output section at offset OUTPUT_OFFSET. | |
588 | ||
eff45813 CC |
589 | // However, if OUTPUT_OFFSET == INVALID_ADDRESS, then input data is |
590 | // handled specially--e.g., a .eh_frame section. The relocation | |
96803768 ILT |
591 | // routines need to check for each reloc where it should be |
592 | // applied. For this case, we need an input/output view for the | |
593 | // entire contents of the section in the output file. We don't | |
594 | // want to copy the contents of the input section to the output | |
595 | // section; the output section contents were already written, | |
596 | // and we waited for them in Relocate_task::is_runnable because | |
597 | // relocs_must_follow_section_writes is set for the object. | |
598 | ||
599 | // Regardless of which of the above cases is true, we have to | |
600 | // check requires_postprocessing of the output section. If that | |
601 | // is false, then we work with views of the output file | |
602 | // directly. If it is true, then we work with a separate | |
603 | // buffer, and the output section is responsible for writing the | |
604 | // final data to the output file. | |
605 | ||
606 | off_t output_section_offset; | |
ef9beddf | 607 | Address output_section_size; |
96803768 ILT |
608 | if (!os->requires_postprocessing()) |
609 | { | |
610 | output_section_offset = os->offset(); | |
ef9beddf | 611 | output_section_size = convert_types<Address, off_t>(os->data_size()); |
96803768 ILT |
612 | } |
613 | else | |
614 | { | |
615 | output_section_offset = 0; | |
ef9beddf ILT |
616 | output_section_size = |
617 | convert_types<Address, off_t>(os->postprocessing_buffer_size()); | |
96803768 ILT |
618 | } |
619 | ||
730cdc88 | 620 | off_t view_start; |
fe8718a4 | 621 | section_size_type view_size; |
eff45813 | 622 | if (output_offset != invalid_address) |
730cdc88 | 623 | { |
96803768 | 624 | view_start = output_section_offset + output_offset; |
fe8718a4 | 625 | view_size = convert_to_section_size_type(shdr.get_sh_size()); |
730cdc88 ILT |
626 | } |
627 | else | |
628 | { | |
96803768 | 629 | view_start = output_section_offset; |
fe8718a4 | 630 | view_size = convert_to_section_size_type(output_section_size); |
730cdc88 | 631 | } |
61ba1cf9 | 632 | |
730cdc88 | 633 | if (view_size == 0) |
ead1e424 ILT |
634 | continue; |
635 | ||
eff45813 | 636 | gold_assert(output_offset == invalid_address |
ef9beddf | 637 | || output_offset + view_size <= output_section_size); |
ead1e424 | 638 | |
730cdc88 | 639 | unsigned char* view; |
96803768 ILT |
640 | if (os->requires_postprocessing()) |
641 | { | |
642 | unsigned char* buffer = os->postprocessing_buffer(); | |
643 | view = buffer + view_start; | |
eff45813 | 644 | if (output_offset != invalid_address) |
cb295612 ILT |
645 | { |
646 | off_t sh_offset = shdr.get_sh_offset(); | |
647 | if (!rm.empty() && rm.back().file_offset > sh_offset) | |
648 | is_sorted = false; | |
649 | rm.push_back(File_read::Read_multiple_entry(sh_offset, | |
650 | view_size, view)); | |
651 | } | |
96803768 | 652 | } |
730cdc88 ILT |
653 | else |
654 | { | |
eff45813 | 655 | if (output_offset == invalid_address) |
96803768 ILT |
656 | view = of->get_input_output_view(view_start, view_size); |
657 | else | |
658 | { | |
659 | view = of->get_output_view(view_start, view_size); | |
cb295612 ILT |
660 | off_t sh_offset = shdr.get_sh_offset(); |
661 | if (!rm.empty() && rm.back().file_offset > sh_offset) | |
662 | is_sorted = false; | |
663 | rm.push_back(File_read::Read_multiple_entry(sh_offset, | |
664 | view_size, view)); | |
96803768 | 665 | } |
730cdc88 | 666 | } |
92e059d8 | 667 | |
61ba1cf9 | 668 | pvs->view = view; |
730cdc88 | 669 | pvs->address = os->address(); |
eff45813 | 670 | if (output_offset != invalid_address) |
730cdc88 ILT |
671 | pvs->address += output_offset; |
672 | pvs->offset = view_start; | |
673 | pvs->view_size = view_size; | |
eff45813 | 674 | pvs->is_input_output_view = output_offset == invalid_address; |
96803768 | 675 | pvs->is_postprocessing_view = os->requires_postprocessing(); |
61ba1cf9 | 676 | } |
cb295612 ILT |
677 | |
678 | // Actually read the data. | |
679 | if (!rm.empty()) | |
680 | { | |
681 | if (!is_sorted) | |
682 | std::sort(rm.begin(), rm.end(), Read_multiple_compare()); | |
683 | this->read_multiple(rm); | |
684 | } | |
61ba1cf9 ILT |
685 | } |
686 | ||
687 | // Relocate section data. VIEWS points to the section data as views | |
688 | // in the output file. | |
689 | ||
690 | template<int size, bool big_endian> | |
691 | void | |
f6ce93d6 | 692 | Sized_relobj<size, big_endian>::relocate_sections( |
92e059d8 ILT |
693 | const General_options& options, |
694 | const Symbol_table* symtab, | |
695 | const Layout* layout, | |
696 | const unsigned char* pshdrs, | |
697 | Views* pviews) | |
61ba1cf9 ILT |
698 | { |
699 | unsigned int shnum = this->shnum(); | |
61ba1cf9 ILT |
700 | Sized_target<size, big_endian>* target = this->sized_target(); |
701 | ||
ef9beddf ILT |
702 | const Output_sections& out_sections(this->output_sections()); |
703 | const std::vector<Address>& out_offsets(this->section_offsets_); | |
730cdc88 | 704 | |
92e059d8 ILT |
705 | Relocate_info<size, big_endian> relinfo; |
706 | relinfo.options = &options; | |
707 | relinfo.symtab = symtab; | |
708 | relinfo.layout = layout; | |
709 | relinfo.object = this; | |
92e059d8 | 710 | |
61ba1cf9 ILT |
711 | const unsigned char* p = pshdrs + This::shdr_size; |
712 | for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size) | |
713 | { | |
714 | typename This::Shdr shdr(p); | |
715 | ||
716 | unsigned int sh_type = shdr.get_sh_type(); | |
717 | if (sh_type != elfcpp::SHT_REL && sh_type != elfcpp::SHT_RELA) | |
718 | continue; | |
719 | ||
d491d34e | 720 | unsigned int index = this->adjust_shndx(shdr.get_sh_info()); |
61ba1cf9 ILT |
721 | if (index >= this->shnum()) |
722 | { | |
75f2446e ILT |
723 | this->error(_("relocation section %u has bad info %u"), |
724 | i, index); | |
725 | continue; | |
61ba1cf9 ILT |
726 | } |
727 | ||
ef9beddf | 728 | Output_section* os = out_sections[index]; |
730cdc88 | 729 | if (os == NULL) |
61ba1cf9 ILT |
730 | { |
731 | // This relocation section is against a section which we | |
732 | // discarded. | |
733 | continue; | |
734 | } | |
ef9beddf | 735 | Address output_offset = out_offsets[index]; |
61ba1cf9 | 736 | |
a3ad94ed | 737 | gold_assert((*pviews)[index].view != NULL); |
8851ecca | 738 | if (parameters->options().relocatable()) |
6a74a719 | 739 | gold_assert((*pviews)[i].view != NULL); |
61ba1cf9 | 740 | |
d491d34e | 741 | if (this->adjust_shndx(shdr.get_sh_link()) != this->symtab_shndx_) |
61ba1cf9 | 742 | { |
75f2446e ILT |
743 | gold_error(_("relocation section %u uses unexpected " |
744 | "symbol table %u"), | |
d491d34e | 745 | i, this->adjust_shndx(shdr.get_sh_link())); |
75f2446e | 746 | continue; |
61ba1cf9 ILT |
747 | } |
748 | ||
749 | off_t sh_size = shdr.get_sh_size(); | |
750 | const unsigned char* prelocs = this->get_view(shdr.get_sh_offset(), | |
39d0cb0e | 751 | sh_size, true, false); |
61ba1cf9 ILT |
752 | |
753 | unsigned int reloc_size; | |
754 | if (sh_type == elfcpp::SHT_REL) | |
755 | reloc_size = elfcpp::Elf_sizes<size>::rel_size; | |
756 | else | |
757 | reloc_size = elfcpp::Elf_sizes<size>::rela_size; | |
758 | ||
759 | if (reloc_size != shdr.get_sh_entsize()) | |
760 | { | |
75f2446e ILT |
761 | gold_error(_("unexpected entsize for reloc section %u: %lu != %u"), |
762 | i, static_cast<unsigned long>(shdr.get_sh_entsize()), | |
730cdc88 | 763 | reloc_size); |
75f2446e | 764 | continue; |
61ba1cf9 ILT |
765 | } |
766 | ||
767 | size_t reloc_count = sh_size / reloc_size; | |
f5c3f225 | 768 | if (static_cast<off_t>(reloc_count * reloc_size) != sh_size) |
61ba1cf9 | 769 | { |
75f2446e ILT |
770 | gold_error(_("reloc section %u size %lu uneven"), |
771 | i, static_cast<unsigned long>(sh_size)); | |
772 | continue; | |
61ba1cf9 ILT |
773 | } |
774 | ||
eff45813 | 775 | gold_assert(output_offset != invalid_address |
96803768 ILT |
776 | || this->relocs_must_follow_section_writes()); |
777 | ||
92e059d8 ILT |
778 | relinfo.reloc_shndx = i; |
779 | relinfo.data_shndx = index; | |
8851ecca | 780 | if (!parameters->options().relocatable()) |
7019cd25 ILT |
781 | { |
782 | target->relocate_section(&relinfo, | |
783 | sh_type, | |
784 | prelocs, | |
785 | reloc_count, | |
786 | os, | |
eff45813 | 787 | output_offset == invalid_address, |
7019cd25 ILT |
788 | (*pviews)[index].view, |
789 | (*pviews)[index].address, | |
790 | (*pviews)[index].view_size); | |
8851ecca | 791 | if (parameters->options().emit_relocs()) |
7019cd25 ILT |
792 | this->emit_relocs(&relinfo, i, sh_type, prelocs, reloc_count, |
793 | os, output_offset, | |
794 | (*pviews)[index].view, | |
795 | (*pviews)[index].address, | |
796 | (*pviews)[index].view_size, | |
797 | (*pviews)[i].view, | |
798 | (*pviews)[i].view_size); | |
799 | } | |
6a74a719 ILT |
800 | else |
801 | { | |
802 | Relocatable_relocs* rr = this->relocatable_relocs(i); | |
803 | target->relocate_for_relocatable(&relinfo, | |
804 | sh_type, | |
805 | prelocs, | |
806 | reloc_count, | |
807 | os, | |
808 | output_offset, | |
809 | rr, | |
810 | (*pviews)[index].view, | |
811 | (*pviews)[index].address, | |
812 | (*pviews)[index].view_size, | |
813 | (*pviews)[i].view, | |
814 | (*pviews)[i].view_size); | |
815 | } | |
61ba1cf9 ILT |
816 | } |
817 | } | |
818 | ||
7019cd25 ILT |
819 | // Emit the relocs for --emit-relocs. |
820 | ||
821 | template<int size, bool big_endian> | |
822 | void | |
823 | Sized_relobj<size, big_endian>::emit_relocs( | |
824 | const Relocate_info<size, big_endian>* relinfo, | |
825 | unsigned int i, | |
826 | unsigned int sh_type, | |
827 | const unsigned char* prelocs, | |
828 | size_t reloc_count, | |
829 | Output_section* output_section, | |
ef9beddf | 830 | typename elfcpp::Elf_types<size>::Elf_Addr offset_in_output_section, |
7019cd25 ILT |
831 | unsigned char* view, |
832 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
833 | section_size_type view_size, | |
834 | unsigned char* reloc_view, | |
835 | section_size_type reloc_view_size) | |
836 | { | |
837 | if (sh_type == elfcpp::SHT_REL) | |
838 | this->emit_relocs_reltype<elfcpp::SHT_REL>(relinfo, i, prelocs, | |
839 | reloc_count, output_section, | |
840 | offset_in_output_section, | |
841 | view, address, view_size, | |
842 | reloc_view, reloc_view_size); | |
843 | else | |
844 | { | |
845 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
846 | this->emit_relocs_reltype<elfcpp::SHT_RELA>(relinfo, i, prelocs, | |
847 | reloc_count, output_section, | |
848 | offset_in_output_section, | |
849 | view, address, view_size, | |
850 | reloc_view, reloc_view_size); | |
851 | } | |
852 | } | |
853 | ||
854 | // Emit the relocs for --emit-relocs, templatized on the type of the | |
855 | // relocation section. | |
856 | ||
857 | template<int size, bool big_endian> | |
858 | template<int sh_type> | |
859 | void | |
860 | Sized_relobj<size, big_endian>::emit_relocs_reltype( | |
861 | const Relocate_info<size, big_endian>* relinfo, | |
862 | unsigned int i, | |
863 | const unsigned char* prelocs, | |
864 | size_t reloc_count, | |
865 | Output_section* output_section, | |
ef9beddf | 866 | typename elfcpp::Elf_types<size>::Elf_Addr offset_in_output_section, |
7019cd25 ILT |
867 | unsigned char* view, |
868 | typename elfcpp::Elf_types<size>::Elf_Addr address, | |
869 | section_size_type view_size, | |
870 | unsigned char* reloc_view, | |
871 | section_size_type reloc_view_size) | |
872 | { | |
873 | const Relocatable_relocs* rr = this->relocatable_relocs(i); | |
874 | relocate_for_relocatable<size, big_endian, sh_type>( | |
875 | relinfo, | |
876 | prelocs, | |
877 | reloc_count, | |
878 | output_section, | |
879 | offset_in_output_section, | |
880 | rr, | |
881 | view, | |
882 | address, | |
883 | view_size, | |
884 | reloc_view, | |
885 | reloc_view_size); | |
886 | } | |
887 | ||
a9a60db6 ILT |
888 | // Create merge hash tables for the local symbols. These are used to |
889 | // speed up relocations. | |
890 | ||
891 | template<int size, bool big_endian> | |
892 | void | |
893 | Sized_relobj<size, big_endian>::initialize_input_to_output_maps() | |
894 | { | |
895 | const unsigned int loccount = this->local_symbol_count_; | |
896 | for (unsigned int i = 1; i < loccount; ++i) | |
897 | { | |
898 | Symbol_value<size>& lv(this->local_values_[i]); | |
899 | lv.initialize_input_to_output_map(this); | |
900 | } | |
901 | } | |
902 | ||
903 | // Free merge hash tables for the local symbols. | |
904 | ||
905 | template<int size, bool big_endian> | |
906 | void | |
907 | Sized_relobj<size, big_endian>::free_input_to_output_maps() | |
908 | { | |
909 | const unsigned int loccount = this->local_symbol_count_; | |
910 | for (unsigned int i = 1; i < loccount; ++i) | |
911 | { | |
912 | Symbol_value<size>& lv(this->local_values_[i]); | |
913 | lv.free_input_to_output_map(); | |
914 | } | |
915 | } | |
916 | ||
917 | // Class Merged_symbol_value. | |
918 | ||
919 | template<int size> | |
920 | void | |
921 | Merged_symbol_value<size>::initialize_input_to_output_map( | |
922 | const Relobj* object, | |
923 | unsigned int input_shndx) | |
924 | { | |
925 | Object_merge_map* map = object->merge_map(); | |
926 | map->initialize_input_to_output_map<size>(input_shndx, | |
927 | this->output_start_address_, | |
928 | &this->output_addresses_); | |
929 | } | |
930 | ||
931 | // Get the output value corresponding to an input offset if we | |
932 | // couldn't find it in the hash table. | |
933 | ||
934 | template<int size> | |
935 | typename elfcpp::Elf_types<size>::Elf_Addr | |
936 | Merged_symbol_value<size>::value_from_output_section( | |
937 | const Relobj* object, | |
938 | unsigned int input_shndx, | |
939 | typename elfcpp::Elf_types<size>::Elf_Addr input_offset) const | |
940 | { | |
941 | section_offset_type output_offset; | |
942 | bool found = object->merge_map()->get_output_offset(NULL, input_shndx, | |
943 | input_offset, | |
944 | &output_offset); | |
945 | ||
946 | // If this assertion fails, it means that some relocation was | |
947 | // against a portion of an input merge section which we didn't map | |
948 | // to the output file and we didn't explicitly discard. We should | |
949 | // always map all portions of input merge sections. | |
950 | gold_assert(found); | |
951 | ||
952 | if (output_offset == -1) | |
953 | return 0; | |
954 | else | |
955 | return this->output_start_address_ + output_offset; | |
956 | } | |
957 | ||
730cdc88 ILT |
958 | // Track_relocs methods. |
959 | ||
960 | // Initialize the class to track the relocs. This gets the object, | |
961 | // the reloc section index, and the type of the relocs. This returns | |
962 | // false if something goes wrong. | |
963 | ||
964 | template<int size, bool big_endian> | |
965 | bool | |
966 | Track_relocs<size, big_endian>::initialize( | |
b696e6d4 | 967 | Object* object, |
730cdc88 ILT |
968 | unsigned int reloc_shndx, |
969 | unsigned int reloc_type) | |
970 | { | |
730cdc88 ILT |
971 | // If RELOC_SHNDX is -1U, it means there is more than one reloc |
972 | // section for the .eh_frame section. We can't handle that case. | |
973 | if (reloc_shndx == -1U) | |
974 | return false; | |
975 | ||
976 | // If RELOC_SHNDX is 0, there is no reloc section. | |
977 | if (reloc_shndx == 0) | |
978 | return true; | |
979 | ||
980 | // Get the contents of the reloc section. | |
981 | this->prelocs_ = object->section_contents(reloc_shndx, &this->len_, false); | |
982 | ||
983 | if (reloc_type == elfcpp::SHT_REL) | |
984 | this->reloc_size_ = elfcpp::Elf_sizes<size>::rel_size; | |
985 | else if (reloc_type == elfcpp::SHT_RELA) | |
986 | this->reloc_size_ = elfcpp::Elf_sizes<size>::rela_size; | |
987 | else | |
988 | gold_unreachable(); | |
989 | ||
990 | if (this->len_ % this->reloc_size_ != 0) | |
991 | { | |
992 | object->error(_("reloc section size %zu is not a multiple of " | |
993 | "reloc size %d\n"), | |
994 | static_cast<size_t>(this->len_), | |
995 | this->reloc_size_); | |
996 | return false; | |
997 | } | |
998 | ||
999 | return true; | |
1000 | } | |
1001 | ||
1002 | // Return the offset of the next reloc, or -1 if there isn't one. | |
1003 | ||
1004 | template<int size, bool big_endian> | |
1005 | off_t | |
1006 | Track_relocs<size, big_endian>::next_offset() const | |
1007 | { | |
1008 | if (this->pos_ >= this->len_) | |
1009 | return -1; | |
1010 | ||
1011 | // Rel and Rela start out the same, so we can always use Rel to find | |
1012 | // the r_offset value. | |
1013 | elfcpp::Rel<size, big_endian> rel(this->prelocs_ + this->pos_); | |
1014 | return rel.get_r_offset(); | |
1015 | } | |
1016 | ||
1017 | // Return the index of the symbol referenced by the next reloc, or -1U | |
1018 | // if there aren't any more relocs. | |
1019 | ||
1020 | template<int size, bool big_endian> | |
1021 | unsigned int | |
1022 | Track_relocs<size, big_endian>::next_symndx() const | |
1023 | { | |
1024 | if (this->pos_ >= this->len_) | |
1025 | return -1U; | |
1026 | ||
1027 | // Rel and Rela start out the same, so we can use Rel to find the | |
1028 | // symbol index. | |
1029 | elfcpp::Rel<size, big_endian> rel(this->prelocs_ + this->pos_); | |
1030 | return elfcpp::elf_r_sym<size>(rel.get_r_info()); | |
1031 | } | |
1032 | ||
1033 | // Advance to the next reloc whose r_offset is greater than or equal | |
1034 | // to OFFSET. Return the number of relocs we skip. | |
1035 | ||
1036 | template<int size, bool big_endian> | |
1037 | int | |
1038 | Track_relocs<size, big_endian>::advance(off_t offset) | |
1039 | { | |
1040 | int ret = 0; | |
1041 | while (this->pos_ < this->len_) | |
1042 | { | |
1043 | // Rel and Rela start out the same, so we can always use Rel to | |
1044 | // find the r_offset value. | |
1045 | elfcpp::Rel<size, big_endian> rel(this->prelocs_ + this->pos_); | |
1046 | if (static_cast<off_t>(rel.get_r_offset()) >= offset) | |
1047 | break; | |
1048 | ++ret; | |
1049 | this->pos_ += this->reloc_size_; | |
1050 | } | |
1051 | return ret; | |
1052 | } | |
1053 | ||
12c0daef | 1054 | // Instantiate the templates we need. |
61ba1cf9 | 1055 | |
193a53d9 | 1056 | #ifdef HAVE_TARGET_32_LITTLE |
92e059d8 ILT |
1057 | template |
1058 | void | |
f6ce93d6 | 1059 | Sized_relobj<32, false>::do_read_relocs(Read_relocs_data* rd); |
193a53d9 | 1060 | #endif |
92e059d8 | 1061 | |
193a53d9 | 1062 | #ifdef HAVE_TARGET_32_BIG |
92e059d8 ILT |
1063 | template |
1064 | void | |
f6ce93d6 | 1065 | Sized_relobj<32, true>::do_read_relocs(Read_relocs_data* rd); |
193a53d9 | 1066 | #endif |
92e059d8 | 1067 | |
193a53d9 | 1068 | #ifdef HAVE_TARGET_64_LITTLE |
92e059d8 ILT |
1069 | template |
1070 | void | |
f6ce93d6 | 1071 | Sized_relobj<64, false>::do_read_relocs(Read_relocs_data* rd); |
193a53d9 | 1072 | #endif |
92e059d8 | 1073 | |
193a53d9 | 1074 | #ifdef HAVE_TARGET_64_BIG |
92e059d8 ILT |
1075 | template |
1076 | void | |
f6ce93d6 | 1077 | Sized_relobj<64, true>::do_read_relocs(Read_relocs_data* rd); |
193a53d9 | 1078 | #endif |
92e059d8 | 1079 | |
193a53d9 | 1080 | #ifdef HAVE_TARGET_32_LITTLE |
92e059d8 ILT |
1081 | template |
1082 | void | |
f6ce93d6 | 1083 | Sized_relobj<32, false>::do_scan_relocs(const General_options& options, |
92e059d8 | 1084 | Symbol_table* symtab, |
ead1e424 | 1085 | Layout* layout, |
92e059d8 | 1086 | Read_relocs_data* rd); |
193a53d9 | 1087 | #endif |
92e059d8 | 1088 | |
193a53d9 | 1089 | #ifdef HAVE_TARGET_32_BIG |
92e059d8 ILT |
1090 | template |
1091 | void | |
f6ce93d6 | 1092 | Sized_relobj<32, true>::do_scan_relocs(const General_options& options, |
92e059d8 | 1093 | Symbol_table* symtab, |
ead1e424 | 1094 | Layout* layout, |
92e059d8 | 1095 | Read_relocs_data* rd); |
193a53d9 | 1096 | #endif |
92e059d8 | 1097 | |
193a53d9 | 1098 | #ifdef HAVE_TARGET_64_LITTLE |
92e059d8 ILT |
1099 | template |
1100 | void | |
f6ce93d6 | 1101 | Sized_relobj<64, false>::do_scan_relocs(const General_options& options, |
92e059d8 | 1102 | Symbol_table* symtab, |
ead1e424 | 1103 | Layout* layout, |
92e059d8 | 1104 | Read_relocs_data* rd); |
193a53d9 | 1105 | #endif |
92e059d8 | 1106 | |
193a53d9 | 1107 | #ifdef HAVE_TARGET_64_BIG |
92e059d8 ILT |
1108 | template |
1109 | void | |
f6ce93d6 | 1110 | Sized_relobj<64, true>::do_scan_relocs(const General_options& options, |
92e059d8 | 1111 | Symbol_table* symtab, |
ead1e424 | 1112 | Layout* layout, |
92e059d8 | 1113 | Read_relocs_data* rd); |
193a53d9 | 1114 | #endif |
92e059d8 | 1115 | |
193a53d9 | 1116 | #ifdef HAVE_TARGET_32_LITTLE |
61ba1cf9 ILT |
1117 | template |
1118 | void | |
f6ce93d6 | 1119 | Sized_relobj<32, false>::do_relocate(const General_options& options, |
61ba1cf9 | 1120 | const Symbol_table* symtab, |
92e059d8 | 1121 | const Layout* layout, |
61ba1cf9 | 1122 | Output_file* of); |
193a53d9 | 1123 | #endif |
61ba1cf9 | 1124 | |
193a53d9 | 1125 | #ifdef HAVE_TARGET_32_BIG |
61ba1cf9 ILT |
1126 | template |
1127 | void | |
f6ce93d6 | 1128 | Sized_relobj<32, true>::do_relocate(const General_options& options, |
61ba1cf9 | 1129 | const Symbol_table* symtab, |
92e059d8 | 1130 | const Layout* layout, |
61ba1cf9 | 1131 | Output_file* of); |
193a53d9 | 1132 | #endif |
61ba1cf9 | 1133 | |
193a53d9 | 1134 | #ifdef HAVE_TARGET_64_LITTLE |
61ba1cf9 ILT |
1135 | template |
1136 | void | |
f6ce93d6 | 1137 | Sized_relobj<64, false>::do_relocate(const General_options& options, |
61ba1cf9 | 1138 | const Symbol_table* symtab, |
92e059d8 | 1139 | const Layout* layout, |
61ba1cf9 | 1140 | Output_file* of); |
193a53d9 | 1141 | #endif |
61ba1cf9 | 1142 | |
193a53d9 | 1143 | #ifdef HAVE_TARGET_64_BIG |
61ba1cf9 ILT |
1144 | template |
1145 | void | |
f6ce93d6 | 1146 | Sized_relobj<64, true>::do_relocate(const General_options& options, |
61ba1cf9 | 1147 | const Symbol_table* symtab, |
92e059d8 | 1148 | const Layout* layout, |
61ba1cf9 | 1149 | Output_file* of); |
193a53d9 | 1150 | #endif |
61ba1cf9 | 1151 | |
a9a60db6 ILT |
1152 | #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG) |
1153 | template | |
1154 | class Merged_symbol_value<32>; | |
1155 | #endif | |
1156 | ||
1157 | #if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG) | |
1158 | template | |
1159 | class Merged_symbol_value<64>; | |
1160 | #endif | |
1161 | ||
1162 | #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG) | |
1163 | template | |
1164 | class Symbol_value<32>; | |
1165 | #endif | |
1166 | ||
1167 | #if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG) | |
1168 | template | |
1169 | class Symbol_value<64>; | |
1170 | #endif | |
1171 | ||
730cdc88 ILT |
1172 | #ifdef HAVE_TARGET_32_LITTLE |
1173 | template | |
1174 | class Track_relocs<32, false>; | |
1175 | #endif | |
1176 | ||
1177 | #ifdef HAVE_TARGET_32_BIG | |
1178 | template | |
1179 | class Track_relocs<32, true>; | |
1180 | #endif | |
1181 | ||
1182 | #ifdef HAVE_TARGET_64_LITTLE | |
1183 | template | |
1184 | class Track_relocs<64, false>; | |
1185 | #endif | |
1186 | ||
1187 | #ifdef HAVE_TARGET_64_BIG | |
1188 | template | |
1189 | class Track_relocs<64, true>; | |
1190 | #endif | |
1191 | ||
61ba1cf9 | 1192 | } // End namespace gold. |