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61ba1cf9 ILT |
1 | // reloc.cc -- relocate input files for gold. |
2 | ||
93ceb764 | 3 | // Copyright 2006, 2007, 2008, 2009, 2010 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 | 33 | #include "reloc.h" |
032ce4e9 | 34 | #include "icf.h" |
a2e47362 | 35 | #include "compressed_output.h" |
61ba1cf9 ILT |
36 | |
37 | namespace gold | |
38 | { | |
39 | ||
92e059d8 ILT |
40 | // Read_relocs methods. |
41 | ||
42 | // These tasks just read the relocation information from the file. | |
43 | // After reading it, the start another task to process the | |
44 | // information. These tasks requires access to the file. | |
45 | ||
17a1d0a9 ILT |
46 | Task_token* |
47 | Read_relocs::is_runnable() | |
92e059d8 | 48 | { |
17a1d0a9 | 49 | return this->object_->is_locked() ? this->object_->token() : NULL; |
92e059d8 ILT |
50 | } |
51 | ||
52 | // Lock the file. | |
53 | ||
17a1d0a9 ILT |
54 | void |
55 | Read_relocs::locks(Task_locker* tl) | |
92e059d8 | 56 | { |
17a1d0a9 | 57 | tl->add(this, this->object_->token()); |
92e059d8 ILT |
58 | } |
59 | ||
60 | // Read the relocations and then start a Scan_relocs_task. | |
61 | ||
62 | void | |
63 | Read_relocs::run(Workqueue* workqueue) | |
64 | { | |
65 | Read_relocs_data *rd = new Read_relocs_data; | |
66 | this->object_->read_relocs(rd); | |
6d03d481 | 67 | this->object_->set_relocs_data(rd); |
17a1d0a9 ILT |
68 | this->object_->release(); |
69 | ||
ef15dade ST |
70 | // If garbage collection or identical comdat folding is desired, we |
71 | // process the relocs first before scanning them. Scanning of relocs is | |
72 | // done only after garbage or identical sections is identified. | |
032ce4e9 ST |
73 | if (parameters->options().gc_sections() |
74 | || parameters->options().icf_enabled()) | |
ef15dade | 75 | { |
ad0f2072 | 76 | workqueue->queue_next(new Gc_process_relocs(this->symtab_, |
6d03d481 ST |
77 | this->layout_, |
78 | this->object_, rd, | |
93ceb764 ILT |
79 | this->this_blocker_, |
80 | this->next_blocker_)); | |
6d03d481 ST |
81 | } |
82 | else | |
83 | { | |
ad0f2072 ILT |
84 | workqueue->queue_next(new Scan_relocs(this->symtab_, this->layout_, |
85 | this->object_, rd, | |
93ceb764 ILT |
86 | this->this_blocker_, |
87 | this->next_blocker_)); | |
6d03d481 | 88 | } |
92e059d8 ILT |
89 | } |
90 | ||
c7912668 ILT |
91 | // Return a debugging name for the task. |
92 | ||
93 | std::string | |
94 | Read_relocs::get_name() const | |
95 | { | |
96 | return "Read_relocs " + this->object_->name(); | |
97 | } | |
98 | ||
6d03d481 ST |
99 | // Gc_process_relocs methods. |
100 | ||
93ceb764 ILT |
101 | Gc_process_relocs::~Gc_process_relocs() |
102 | { | |
103 | if (this->this_blocker_ != NULL) | |
104 | delete this->this_blocker_; | |
105 | } | |
106 | ||
107 | // These tasks process the relocations read by Read_relocs and | |
6d03d481 | 108 | // determine which sections are referenced and which are garbage. |
93ceb764 ILT |
109 | // This task is done only when --gc-sections is used. This is blocked |
110 | // by THIS_BLOCKER_. It unblocks NEXT_BLOCKER_. | |
6d03d481 ST |
111 | |
112 | Task_token* | |
113 | Gc_process_relocs::is_runnable() | |
114 | { | |
93ceb764 ILT |
115 | if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked()) |
116 | return this->this_blocker_; | |
6d03d481 ST |
117 | if (this->object_->is_locked()) |
118 | return this->object_->token(); | |
119 | return NULL; | |
120 | } | |
121 | ||
122 | void | |
123 | Gc_process_relocs::locks(Task_locker* tl) | |
124 | { | |
125 | tl->add(this, this->object_->token()); | |
93ceb764 | 126 | tl->add(this, this->next_blocker_); |
6d03d481 ST |
127 | } |
128 | ||
129 | void | |
130 | Gc_process_relocs::run(Workqueue*) | |
131 | { | |
ad0f2072 | 132 | this->object_->gc_process_relocs(this->symtab_, this->layout_, this->rd_); |
6d03d481 ST |
133 | this->object_->release(); |
134 | } | |
135 | ||
136 | // Return a debugging name for the task. | |
137 | ||
138 | std::string | |
139 | Gc_process_relocs::get_name() const | |
140 | { | |
141 | return "Gc_process_relocs " + this->object_->name(); | |
142 | } | |
143 | ||
92e059d8 ILT |
144 | // Scan_relocs methods. |
145 | ||
93ceb764 ILT |
146 | Scan_relocs::~Scan_relocs() |
147 | { | |
148 | if (this->this_blocker_ != NULL) | |
149 | delete this->this_blocker_; | |
150 | } | |
151 | ||
92e059d8 ILT |
152 | // These tasks scan the relocations read by Read_relocs and mark up |
153 | // the symbol table to indicate which relocations are required. We | |
154 | // use a lock on the symbol table to keep them from interfering with | |
155 | // each other. | |
156 | ||
17a1d0a9 ILT |
157 | Task_token* |
158 | Scan_relocs::is_runnable() | |
92e059d8 | 159 | { |
93ceb764 ILT |
160 | if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked()) |
161 | return this->this_blocker_; | |
17a1d0a9 ILT |
162 | if (this->object_->is_locked()) |
163 | return this->object_->token(); | |
164 | return NULL; | |
92e059d8 ILT |
165 | } |
166 | ||
167 | // Return the locks we hold: one on the file, one on the symbol table | |
168 | // and one blocker. | |
169 | ||
17a1d0a9 ILT |
170 | void |
171 | Scan_relocs::locks(Task_locker* tl) | |
92e059d8 | 172 | { |
17a1d0a9 | 173 | tl->add(this, this->object_->token()); |
93ceb764 | 174 | tl->add(this, this->next_blocker_); |
92e059d8 ILT |
175 | } |
176 | ||
177 | // Scan the relocs. | |
178 | ||
179 | void | |
180 | Scan_relocs::run(Workqueue*) | |
181 | { | |
ad0f2072 | 182 | this->object_->scan_relocs(this->symtab_, this->layout_, this->rd_); |
92e059d8 ILT |
183 | delete this->rd_; |
184 | this->rd_ = NULL; | |
a2a5469e | 185 | this->object_->release(); |
92e059d8 ILT |
186 | } |
187 | ||
c7912668 ILT |
188 | // Return a debugging name for the task. |
189 | ||
190 | std::string | |
191 | Scan_relocs::get_name() const | |
192 | { | |
193 | return "Scan_relocs " + this->object_->name(); | |
194 | } | |
195 | ||
61ba1cf9 ILT |
196 | // Relocate_task methods. |
197 | ||
730cdc88 | 198 | // We may have to wait for the output sections to be written. |
61ba1cf9 | 199 | |
17a1d0a9 ILT |
200 | Task_token* |
201 | Relocate_task::is_runnable() | |
61ba1cf9 | 202 | { |
730cdc88 ILT |
203 | if (this->object_->relocs_must_follow_section_writes() |
204 | && this->output_sections_blocker_->is_blocked()) | |
17a1d0a9 | 205 | return this->output_sections_blocker_; |
730cdc88 | 206 | |
c7912668 | 207 | if (this->object_->is_locked()) |
17a1d0a9 | 208 | return this->object_->token(); |
c7912668 | 209 | |
17a1d0a9 | 210 | return NULL; |
61ba1cf9 ILT |
211 | } |
212 | ||
213 | // We want to lock the file while we run. We want to unblock | |
730cdc88 | 214 | // INPUT_SECTIONS_BLOCKER and FINAL_BLOCKER when we are done. |
17a1d0a9 | 215 | // INPUT_SECTIONS_BLOCKER may be NULL. |
61ba1cf9 | 216 | |
17a1d0a9 ILT |
217 | void |
218 | Relocate_task::locks(Task_locker* tl) | |
61ba1cf9 | 219 | { |
17a1d0a9 ILT |
220 | if (this->input_sections_blocker_ != NULL) |
221 | tl->add(this, this->input_sections_blocker_); | |
222 | tl->add(this, this->final_blocker_); | |
223 | tl->add(this, this->object_->token()); | |
61ba1cf9 ILT |
224 | } |
225 | ||
226 | // Run the task. | |
227 | ||
228 | void | |
229 | Relocate_task::run(Workqueue*) | |
230 | { | |
ad0f2072 | 231 | this->object_->relocate(this->symtab_, this->layout_, this->of_); |
cb295612 ILT |
232 | |
233 | // This is normally the last thing we will do with an object, so | |
234 | // uncache all views. | |
235 | this->object_->clear_view_cache_marks(); | |
236 | ||
17a1d0a9 | 237 | this->object_->release(); |
61ba1cf9 ILT |
238 | } |
239 | ||
c7912668 ILT |
240 | // Return a debugging name for the task. |
241 | ||
242 | std::string | |
243 | Relocate_task::get_name() const | |
244 | { | |
245 | return "Relocate_task " + this->object_->name(); | |
246 | } | |
247 | ||
92e059d8 ILT |
248 | // Read the relocs and local symbols from the object file and store |
249 | // the information in RD. | |
250 | ||
251 | template<int size, bool big_endian> | |
252 | void | |
f6ce93d6 | 253 | Sized_relobj<size, big_endian>::do_read_relocs(Read_relocs_data* rd) |
92e059d8 ILT |
254 | { |
255 | rd->relocs.clear(); | |
256 | ||
2ea97941 ILT |
257 | unsigned int shnum = this->shnum(); |
258 | if (shnum == 0) | |
92e059d8 ILT |
259 | return; |
260 | ||
2ea97941 | 261 | rd->relocs.reserve(shnum / 2); |
92e059d8 | 262 | |
ef9beddf ILT |
263 | const Output_sections& out_sections(this->output_sections()); |
264 | const std::vector<Address>& out_offsets(this->section_offsets_); | |
730cdc88 | 265 | |
645f8123 | 266 | const unsigned char *pshdrs = this->get_view(this->elf_file_.shoff(), |
2ea97941 | 267 | shnum * This::shdr_size, |
39d0cb0e | 268 | true, true); |
92e059d8 ILT |
269 | // Skip the first, dummy, section. |
270 | const unsigned char *ps = pshdrs + This::shdr_size; | |
2ea97941 | 271 | for (unsigned int i = 1; i < shnum; ++i, ps += This::shdr_size) |
92e059d8 ILT |
272 | { |
273 | typename This::Shdr shdr(ps); | |
274 | ||
275 | unsigned int sh_type = shdr.get_sh_type(); | |
276 | if (sh_type != elfcpp::SHT_REL && sh_type != elfcpp::SHT_RELA) | |
277 | continue; | |
278 | ||
d491d34e | 279 | unsigned int shndx = this->adjust_shndx(shdr.get_sh_info()); |
2ea97941 | 280 | if (shndx >= shnum) |
92e059d8 | 281 | { |
75f2446e ILT |
282 | this->error(_("relocation section %u has bad info %u"), |
283 | i, shndx); | |
284 | continue; | |
92e059d8 ILT |
285 | } |
286 | ||
ef9beddf | 287 | Output_section* os = out_sections[shndx]; |
730cdc88 | 288 | if (os == NULL) |
92e059d8 ILT |
289 | continue; |
290 | ||
ead1e424 ILT |
291 | // We are scanning relocations in order to fill out the GOT and |
292 | // PLT sections. Relocations for sections which are not | |
293 | // allocated (typically debugging sections) should not add new | |
6a74a719 | 294 | // GOT and PLT entries. So we skip them unless this is a |
031cdbed ILT |
295 | // relocatable link or we need to emit relocations. FIXME: What |
296 | // should we do if a linker script maps a section with SHF_ALLOC | |
297 | // clear to a section with SHF_ALLOC set? | |
7019cd25 ILT |
298 | typename This::Shdr secshdr(pshdrs + shndx * This::shdr_size); |
299 | bool is_section_allocated = ((secshdr.get_sh_flags() & elfcpp::SHF_ALLOC) | |
300 | != 0); | |
301 | if (!is_section_allocated | |
8851ecca ILT |
302 | && !parameters->options().relocatable() |
303 | && !parameters->options().emit_relocs()) | |
7019cd25 | 304 | continue; |
ead1e424 | 305 | |
d491d34e | 306 | if (this->adjust_shndx(shdr.get_sh_link()) != this->symtab_shndx_) |
92e059d8 | 307 | { |
75f2446e ILT |
308 | this->error(_("relocation section %u uses unexpected " |
309 | "symbol table %u"), | |
d491d34e | 310 | i, this->adjust_shndx(shdr.get_sh_link())); |
75f2446e | 311 | continue; |
92e059d8 ILT |
312 | } |
313 | ||
314 | off_t sh_size = shdr.get_sh_size(); | |
315 | ||
316 | unsigned int reloc_size; | |
317 | if (sh_type == elfcpp::SHT_REL) | |
318 | reloc_size = elfcpp::Elf_sizes<size>::rel_size; | |
319 | else | |
320 | reloc_size = elfcpp::Elf_sizes<size>::rela_size; | |
321 | if (reloc_size != shdr.get_sh_entsize()) | |
322 | { | |
75f2446e ILT |
323 | this->error(_("unexpected entsize for reloc section %u: %lu != %u"), |
324 | i, static_cast<unsigned long>(shdr.get_sh_entsize()), | |
325 | reloc_size); | |
326 | continue; | |
92e059d8 ILT |
327 | } |
328 | ||
329 | size_t reloc_count = sh_size / reloc_size; | |
f5c3f225 | 330 | if (static_cast<off_t>(reloc_count * reloc_size) != sh_size) |
92e059d8 | 331 | { |
75f2446e ILT |
332 | this->error(_("reloc section %u size %lu uneven"), |
333 | i, static_cast<unsigned long>(sh_size)); | |
334 | continue; | |
92e059d8 ILT |
335 | } |
336 | ||
337 | rd->relocs.push_back(Section_relocs()); | |
338 | Section_relocs& sr(rd->relocs.back()); | |
339 | sr.reloc_shndx = i; | |
340 | sr.data_shndx = shndx; | |
9eb9fa57 | 341 | sr.contents = this->get_lasting_view(shdr.get_sh_offset(), sh_size, |
39d0cb0e | 342 | true, true); |
92e059d8 ILT |
343 | sr.sh_type = sh_type; |
344 | sr.reloc_count = reloc_count; | |
730cdc88 | 345 | sr.output_section = os; |
a45248e0 | 346 | sr.needs_special_offset_handling = out_offsets[shndx] == invalid_address; |
7019cd25 | 347 | sr.is_data_section_allocated = is_section_allocated; |
92e059d8 ILT |
348 | } |
349 | ||
350 | // Read the local symbols. | |
a3ad94ed | 351 | gold_assert(this->symtab_shndx_ != -1U); |
645f8123 | 352 | if (this->symtab_shndx_ == 0 || this->local_symbol_count_ == 0) |
92e059d8 ILT |
353 | rd->local_symbols = NULL; |
354 | else | |
355 | { | |
356 | typename This::Shdr symtabshdr(pshdrs | |
645f8123 | 357 | + this->symtab_shndx_ * This::shdr_size); |
a3ad94ed | 358 | gold_assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB); |
2ea97941 | 359 | const int sym_size = This::sym_size; |
92e059d8 | 360 | const unsigned int loccount = this->local_symbol_count_; |
a3ad94ed | 361 | gold_assert(loccount == symtabshdr.get_sh_info()); |
2ea97941 | 362 | off_t locsize = loccount * sym_size; |
92e059d8 | 363 | rd->local_symbols = this->get_lasting_view(symtabshdr.get_sh_offset(), |
39d0cb0e | 364 | locsize, true, true); |
92e059d8 ILT |
365 | } |
366 | } | |
367 | ||
6d03d481 ST |
368 | // Process the relocs to generate mappings from source sections to referenced |
369 | // sections. This is used during garbage colletion to determine garbage | |
370 | // sections. | |
371 | ||
372 | template<int size, bool big_endian> | |
373 | void | |
ad0f2072 | 374 | Sized_relobj<size, big_endian>::do_gc_process_relocs(Symbol_table* symtab, |
2ea97941 | 375 | Layout* layout, |
ad0f2072 | 376 | Read_relocs_data* rd) |
6d03d481 | 377 | { |
029ba973 ILT |
378 | Sized_target<size, big_endian>* target = |
379 | parameters->sized_target<size, big_endian>(); | |
6d03d481 ST |
380 | |
381 | const unsigned char* local_symbols; | |
382 | if (rd->local_symbols == NULL) | |
383 | local_symbols = NULL; | |
384 | else | |
385 | local_symbols = rd->local_symbols->data(); | |
386 | ||
387 | for (Read_relocs_data::Relocs_list::iterator p = rd->relocs.begin(); | |
388 | p != rd->relocs.end(); | |
389 | ++p) | |
390 | { | |
391 | if (!parameters->options().relocatable()) | |
392 | { | |
393 | // As noted above, when not generating an object file, we | |
394 | // only scan allocated sections. We may see a non-allocated | |
395 | // section here if we are emitting relocs. | |
396 | if (p->is_data_section_allocated) | |
2ea97941 | 397 | target->gc_process_relocs(symtab, layout, this, |
6d03d481 ST |
398 | p->data_shndx, p->sh_type, |
399 | p->contents->data(), p->reloc_count, | |
400 | p->output_section, | |
401 | p->needs_special_offset_handling, | |
402 | this->local_symbol_count_, | |
403 | local_symbols); | |
404 | } | |
405 | } | |
406 | } | |
407 | ||
408 | ||
92e059d8 ILT |
409 | // Scan the relocs and adjust the symbol table. This looks for |
410 | // relocations which require GOT/PLT/COPY relocations. | |
411 | ||
412 | template<int size, bool big_endian> | |
413 | void | |
ad0f2072 | 414 | Sized_relobj<size, big_endian>::do_scan_relocs(Symbol_table* symtab, |
2ea97941 | 415 | Layout* layout, |
92e059d8 ILT |
416 | Read_relocs_data* rd) |
417 | { | |
029ba973 ILT |
418 | Sized_target<size, big_endian>* target = |
419 | parameters->sized_target<size, big_endian>(); | |
92e059d8 ILT |
420 | |
421 | const unsigned char* local_symbols; | |
422 | if (rd->local_symbols == NULL) | |
423 | local_symbols = NULL; | |
424 | else | |
425 | local_symbols = rd->local_symbols->data(); | |
426 | ||
427 | for (Read_relocs_data::Relocs_list::iterator p = rd->relocs.begin(); | |
428 | p != rd->relocs.end(); | |
429 | ++p) | |
430 | { | |
6d03d481 ST |
431 | // When garbage collection is on, unreferenced sections are not included |
432 | // in the link that would have been included normally. This is known only | |
433 | // after Read_relocs hence this check has to be done again. | |
032ce4e9 ST |
434 | if (parameters->options().gc_sections() |
435 | || parameters->options().icf_enabled()) | |
6d03d481 ST |
436 | { |
437 | if (p->output_section == NULL) | |
438 | continue; | |
439 | } | |
8851ecca | 440 | if (!parameters->options().relocatable()) |
7019cd25 ILT |
441 | { |
442 | // As noted above, when not generating an object file, we | |
443 | // only scan allocated sections. We may see a non-allocated | |
444 | // section here if we are emitting relocs. | |
445 | if (p->is_data_section_allocated) | |
2ea97941 | 446 | target->scan_relocs(symtab, layout, this, p->data_shndx, |
7019cd25 ILT |
447 | p->sh_type, p->contents->data(), |
448 | p->reloc_count, p->output_section, | |
449 | p->needs_special_offset_handling, | |
450 | this->local_symbol_count_, | |
451 | local_symbols); | |
8851ecca | 452 | if (parameters->options().emit_relocs()) |
2ea97941 | 453 | this->emit_relocs_scan(symtab, layout, local_symbols, p); |
7019cd25 | 454 | } |
6a74a719 ILT |
455 | else |
456 | { | |
457 | Relocatable_relocs* rr = this->relocatable_relocs(p->reloc_shndx); | |
458 | gold_assert(rr != NULL); | |
459 | rr->set_reloc_count(p->reloc_count); | |
2ea97941 | 460 | target->scan_relocatable_relocs(symtab, layout, this, |
6a74a719 ILT |
461 | p->data_shndx, p->sh_type, |
462 | p->contents->data(), | |
463 | p->reloc_count, | |
464 | p->output_section, | |
465 | p->needs_special_offset_handling, | |
466 | this->local_symbol_count_, | |
467 | local_symbols, | |
468 | rr); | |
469 | } | |
470 | ||
92e059d8 ILT |
471 | delete p->contents; |
472 | p->contents = NULL; | |
473 | } | |
474 | ||
475 | if (rd->local_symbols != NULL) | |
476 | { | |
477 | delete rd->local_symbols; | |
478 | rd->local_symbols = NULL; | |
479 | } | |
480 | } | |
481 | ||
7019cd25 ILT |
482 | // This is a strategy class we use when scanning for --emit-relocs. |
483 | ||
484 | template<int sh_type> | |
485 | class Emit_relocs_strategy | |
486 | { | |
487 | public: | |
488 | // A local non-section symbol. | |
489 | inline Relocatable_relocs::Reloc_strategy | |
68943102 | 490 | local_non_section_strategy(unsigned int, Relobj*, unsigned int) |
7019cd25 ILT |
491 | { return Relocatable_relocs::RELOC_COPY; } |
492 | ||
493 | // A local section symbol. | |
494 | inline Relocatable_relocs::Reloc_strategy | |
495 | local_section_strategy(unsigned int, Relobj*) | |
496 | { | |
497 | if (sh_type == elfcpp::SHT_RELA) | |
498 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_RELA; | |
499 | else | |
500 | { | |
501 | // The addend is stored in the section contents. Since this | |
502 | // is not a relocatable link, we are going to apply the | |
503 | // relocation contents to the section as usual. This means | |
504 | // that we have no way to record the original addend. If the | |
505 | // original addend is not zero, there is basically no way for | |
506 | // the user to handle this correctly. Caveat emptor. | |
507 | return Relocatable_relocs::RELOC_ADJUST_FOR_SECTION_0; | |
508 | } | |
509 | } | |
510 | ||
511 | // A global symbol. | |
512 | inline Relocatable_relocs::Reloc_strategy | |
513 | global_strategy(unsigned int, Relobj*, unsigned int) | |
514 | { return Relocatable_relocs::RELOC_COPY; } | |
515 | }; | |
516 | ||
517 | // Scan the input relocations for --emit-relocs. | |
518 | ||
519 | template<int size, bool big_endian> | |
520 | void | |
521 | Sized_relobj<size, big_endian>::emit_relocs_scan( | |
7019cd25 | 522 | Symbol_table* symtab, |
2ea97941 | 523 | Layout* layout, |
7019cd25 ILT |
524 | const unsigned char* plocal_syms, |
525 | const Read_relocs_data::Relocs_list::iterator& p) | |
526 | { | |
527 | Relocatable_relocs* rr = this->relocatable_relocs(p->reloc_shndx); | |
528 | gold_assert(rr != NULL); | |
529 | rr->set_reloc_count(p->reloc_count); | |
530 | ||
531 | if (p->sh_type == elfcpp::SHT_REL) | |
2ea97941 | 532 | this->emit_relocs_scan_reltype<elfcpp::SHT_REL>(symtab, layout, |
7019cd25 ILT |
533 | plocal_syms, p, rr); |
534 | else | |
535 | { | |
536 | gold_assert(p->sh_type == elfcpp::SHT_RELA); | |
2ea97941 | 537 | this->emit_relocs_scan_reltype<elfcpp::SHT_RELA>(symtab, layout, |
ad0f2072 | 538 | plocal_syms, p, rr); |
7019cd25 ILT |
539 | } |
540 | } | |
541 | ||
542 | // Scan the input relocation for --emit-relocs, templatized on the | |
543 | // type of the relocation section. | |
544 | ||
545 | template<int size, bool big_endian> | |
546 | template<int sh_type> | |
547 | void | |
548 | Sized_relobj<size, big_endian>::emit_relocs_scan_reltype( | |
7019cd25 | 549 | Symbol_table* symtab, |
2ea97941 | 550 | Layout* layout, |
7019cd25 ILT |
551 | const unsigned char* plocal_syms, |
552 | const Read_relocs_data::Relocs_list::iterator& p, | |
553 | Relocatable_relocs* rr) | |
554 | { | |
555 | scan_relocatable_relocs<size, big_endian, sh_type, | |
556 | Emit_relocs_strategy<sh_type> >( | |
7019cd25 | 557 | symtab, |
2ea97941 | 558 | layout, |
7019cd25 ILT |
559 | this, |
560 | p->data_shndx, | |
561 | p->contents->data(), | |
562 | p->reloc_count, | |
563 | p->output_section, | |
564 | p->needs_special_offset_handling, | |
565 | this->local_symbol_count_, | |
566 | plocal_syms, | |
567 | rr); | |
568 | } | |
569 | ||
61ba1cf9 ILT |
570 | // Relocate the input sections and write out the local symbols. |
571 | ||
572 | template<int size, bool big_endian> | |
573 | void | |
ad0f2072 | 574 | Sized_relobj<size, big_endian>::do_relocate(const Symbol_table* symtab, |
2ea97941 | 575 | const Layout* layout, |
61ba1cf9 ILT |
576 | Output_file* of) |
577 | { | |
2ea97941 | 578 | unsigned int shnum = this->shnum(); |
61ba1cf9 ILT |
579 | |
580 | // Read the section headers. | |
645f8123 | 581 | const unsigned char* pshdrs = this->get_view(this->elf_file_.shoff(), |
2ea97941 | 582 | shnum * This::shdr_size, |
39d0cb0e | 583 | true, true); |
61ba1cf9 ILT |
584 | |
585 | Views views; | |
2ea97941 | 586 | views.resize(shnum); |
61ba1cf9 ILT |
587 | |
588 | // Make two passes over the sections. The first one copies the | |
589 | // section data to the output file. The second one applies | |
590 | // relocations. | |
591 | ||
592 | this->write_sections(pshdrs, of, &views); | |
593 | ||
a9a60db6 ILT |
594 | // To speed up relocations, we set up hash tables for fast lookup of |
595 | // input offsets to output addresses. | |
596 | this->initialize_input_to_output_maps(); | |
597 | ||
61ba1cf9 ILT |
598 | // Apply relocations. |
599 | ||
2ea97941 | 600 | this->relocate_sections(symtab, layout, pshdrs, &views); |
61ba1cf9 | 601 | |
a9a60db6 ILT |
602 | // After we've done the relocations, we release the hash tables, |
603 | // since we no longer need them. | |
604 | this->free_input_to_output_maps(); | |
605 | ||
61ba1cf9 | 606 | // Write out the accumulated views. |
2ea97941 | 607 | for (unsigned int i = 1; i < shnum; ++i) |
61ba1cf9 ILT |
608 | { |
609 | if (views[i].view != NULL) | |
730cdc88 | 610 | { |
96803768 ILT |
611 | if (!views[i].is_postprocessing_view) |
612 | { | |
613 | if (views[i].is_input_output_view) | |
614 | of->write_input_output_view(views[i].offset, | |
615 | views[i].view_size, | |
616 | views[i].view); | |
617 | else | |
618 | of->write_output_view(views[i].offset, views[i].view_size, | |
619 | views[i].view); | |
620 | } | |
730cdc88 | 621 | } |
61ba1cf9 ILT |
622 | } |
623 | ||
624 | // Write out the local symbols. | |
2ea97941 ILT |
625 | this->write_local_symbols(of, layout->sympool(), layout->dynpool(), |
626 | layout->symtab_xindex(), layout->dynsym_xindex()); | |
cb295612 ILT |
627 | |
628 | // We should no longer need the local symbol values. | |
629 | this->clear_local_symbols(); | |
61ba1cf9 ILT |
630 | } |
631 | ||
cb295612 ILT |
632 | // Sort a Read_multiple vector by file offset. |
633 | struct Read_multiple_compare | |
634 | { | |
635 | inline bool | |
636 | operator()(const File_read::Read_multiple_entry& rme1, | |
637 | const File_read::Read_multiple_entry& rme2) const | |
638 | { return rme1.file_offset < rme2.file_offset; } | |
639 | }; | |
640 | ||
61ba1cf9 ILT |
641 | // Write section data to the output file. PSHDRS points to the |
642 | // section headers. Record the views in *PVIEWS for use when | |
643 | // relocating. | |
644 | ||
645 | template<int size, bool big_endian> | |
646 | void | |
f6ce93d6 | 647 | Sized_relobj<size, big_endian>::write_sections(const unsigned char* pshdrs, |
61ba1cf9 | 648 | Output_file* of, |
cb295612 | 649 | Views* pviews) |
61ba1cf9 | 650 | { |
2ea97941 | 651 | unsigned int shnum = this->shnum(); |
ef9beddf ILT |
652 | const Output_sections& out_sections(this->output_sections()); |
653 | const std::vector<Address>& out_offsets(this->section_offsets_); | |
61ba1cf9 | 654 | |
cb295612 ILT |
655 | File_read::Read_multiple rm; |
656 | bool is_sorted = true; | |
657 | ||
61ba1cf9 | 658 | const unsigned char* p = pshdrs + This::shdr_size; |
2ea97941 | 659 | for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size) |
61ba1cf9 ILT |
660 | { |
661 | View_size* pvs = &(*pviews)[i]; | |
662 | ||
663 | pvs->view = NULL; | |
664 | ||
ef9beddf | 665 | const Output_section* os = out_sections[i]; |
61ba1cf9 ILT |
666 | if (os == NULL) |
667 | continue; | |
ef9beddf | 668 | Address output_offset = out_offsets[i]; |
61ba1cf9 ILT |
669 | |
670 | typename This::Shdr shdr(p); | |
671 | ||
672 | if (shdr.get_sh_type() == elfcpp::SHT_NOBITS) | |
673 | continue; | |
674 | ||
8851ecca ILT |
675 | if ((parameters->options().relocatable() |
676 | || parameters->options().emit_relocs()) | |
6a74a719 ILT |
677 | && (shdr.get_sh_type() == elfcpp::SHT_REL |
678 | || shdr.get_sh_type() == elfcpp::SHT_RELA) | |
679 | && (shdr.get_sh_flags() & elfcpp::SHF_ALLOC) == 0) | |
680 | { | |
7019cd25 ILT |
681 | // This is a reloc section in a relocatable link or when |
682 | // emitting relocs. We don't need to read the input file. | |
683 | // The size and file offset are stored in the | |
684 | // Relocatable_relocs structure. | |
6a74a719 ILT |
685 | Relocatable_relocs* rr = this->relocatable_relocs(i); |
686 | gold_assert(rr != NULL); | |
687 | Output_data* posd = rr->output_data(); | |
688 | gold_assert(posd != NULL); | |
689 | ||
690 | pvs->offset = posd->offset(); | |
691 | pvs->view_size = posd->data_size(); | |
692 | pvs->view = of->get_output_view(pvs->offset, pvs->view_size); | |
693 | pvs->address = posd->address(); | |
694 | pvs->is_input_output_view = false; | |
695 | pvs->is_postprocessing_view = false; | |
696 | ||
697 | continue; | |
698 | } | |
699 | ||
96803768 ILT |
700 | // In the normal case, this input section is simply mapped to |
701 | // the output section at offset OUTPUT_OFFSET. | |
702 | ||
eff45813 CC |
703 | // However, if OUTPUT_OFFSET == INVALID_ADDRESS, then input data is |
704 | // handled specially--e.g., a .eh_frame section. The relocation | |
96803768 ILT |
705 | // routines need to check for each reloc where it should be |
706 | // applied. For this case, we need an input/output view for the | |
707 | // entire contents of the section in the output file. We don't | |
708 | // want to copy the contents of the input section to the output | |
709 | // section; the output section contents were already written, | |
710 | // and we waited for them in Relocate_task::is_runnable because | |
711 | // relocs_must_follow_section_writes is set for the object. | |
712 | ||
713 | // Regardless of which of the above cases is true, we have to | |
714 | // check requires_postprocessing of the output section. If that | |
715 | // is false, then we work with views of the output file | |
716 | // directly. If it is true, then we work with a separate | |
717 | // buffer, and the output section is responsible for writing the | |
718 | // final data to the output file. | |
719 | ||
2ea97941 | 720 | off_t output_section_offset; |
ef9beddf | 721 | Address output_section_size; |
96803768 ILT |
722 | if (!os->requires_postprocessing()) |
723 | { | |
2ea97941 | 724 | output_section_offset = os->offset(); |
ef9beddf | 725 | output_section_size = convert_types<Address, off_t>(os->data_size()); |
96803768 ILT |
726 | } |
727 | else | |
728 | { | |
2ea97941 | 729 | output_section_offset = 0; |
ef9beddf ILT |
730 | output_section_size = |
731 | convert_types<Address, off_t>(os->postprocessing_buffer_size()); | |
96803768 ILT |
732 | } |
733 | ||
730cdc88 | 734 | off_t view_start; |
fe8718a4 | 735 | section_size_type view_size; |
a2e47362 | 736 | bool must_decompress = false; |
eff45813 | 737 | if (output_offset != invalid_address) |
730cdc88 | 738 | { |
2ea97941 | 739 | view_start = output_section_offset + output_offset; |
fe8718a4 | 740 | view_size = convert_to_section_size_type(shdr.get_sh_size()); |
a2e47362 CC |
741 | section_size_type uncompressed_size; |
742 | if (this->section_is_compressed(i, &uncompressed_size)) | |
743 | { | |
744 | view_size = uncompressed_size; | |
745 | must_decompress = true; | |
746 | } | |
730cdc88 ILT |
747 | } |
748 | else | |
749 | { | |
2ea97941 | 750 | view_start = output_section_offset; |
fe8718a4 | 751 | view_size = convert_to_section_size_type(output_section_size); |
730cdc88 | 752 | } |
61ba1cf9 | 753 | |
730cdc88 | 754 | if (view_size == 0) |
ead1e424 ILT |
755 | continue; |
756 | ||
eff45813 | 757 | gold_assert(output_offset == invalid_address |
ef9beddf | 758 | || output_offset + view_size <= output_section_size); |
ead1e424 | 759 | |
2ea97941 | 760 | unsigned char* view; |
96803768 ILT |
761 | if (os->requires_postprocessing()) |
762 | { | |
763 | unsigned char* buffer = os->postprocessing_buffer(); | |
2ea97941 | 764 | view = buffer + view_start; |
a2e47362 | 765 | if (output_offset != invalid_address && !must_decompress) |
cb295612 ILT |
766 | { |
767 | off_t sh_offset = shdr.get_sh_offset(); | |
768 | if (!rm.empty() && rm.back().file_offset > sh_offset) | |
769 | is_sorted = false; | |
770 | rm.push_back(File_read::Read_multiple_entry(sh_offset, | |
2ea97941 | 771 | view_size, view)); |
cb295612 | 772 | } |
96803768 | 773 | } |
730cdc88 ILT |
774 | else |
775 | { | |
eff45813 | 776 | if (output_offset == invalid_address) |
2ea97941 | 777 | view = of->get_input_output_view(view_start, view_size); |
96803768 ILT |
778 | else |
779 | { | |
2ea97941 | 780 | view = of->get_output_view(view_start, view_size); |
a2e47362 CC |
781 | if (!must_decompress) |
782 | { | |
783 | off_t sh_offset = shdr.get_sh_offset(); | |
784 | if (!rm.empty() && rm.back().file_offset > sh_offset) | |
785 | is_sorted = false; | |
786 | rm.push_back(File_read::Read_multiple_entry(sh_offset, | |
787 | view_size, view)); | |
788 | } | |
96803768 | 789 | } |
730cdc88 | 790 | } |
92e059d8 | 791 | |
a2e47362 CC |
792 | if (must_decompress) |
793 | { | |
794 | // Read and decompress the section. | |
795 | section_size_type len; | |
796 | const unsigned char* p = this->section_contents(i, &len, false); | |
797 | if (!decompress_input_section(p, len, view, view_size)) | |
798 | this->error(_("could not decompress section %s"), | |
799 | this->section_name(i).c_str()); | |
800 | } | |
801 | ||
2ea97941 | 802 | pvs->view = view; |
730cdc88 | 803 | pvs->address = os->address(); |
eff45813 | 804 | if (output_offset != invalid_address) |
730cdc88 ILT |
805 | pvs->address += output_offset; |
806 | pvs->offset = view_start; | |
807 | pvs->view_size = view_size; | |
eff45813 | 808 | pvs->is_input_output_view = output_offset == invalid_address; |
96803768 | 809 | pvs->is_postprocessing_view = os->requires_postprocessing(); |
61ba1cf9 | 810 | } |
cb295612 ILT |
811 | |
812 | // Actually read the data. | |
813 | if (!rm.empty()) | |
814 | { | |
815 | if (!is_sorted) | |
816 | std::sort(rm.begin(), rm.end(), Read_multiple_compare()); | |
817 | this->read_multiple(rm); | |
818 | } | |
61ba1cf9 ILT |
819 | } |
820 | ||
821 | // Relocate section data. VIEWS points to the section data as views | |
822 | // in the output file. | |
823 | ||
824 | template<int size, bool big_endian> | |
825 | void | |
72adc4fa | 826 | Sized_relobj<size, big_endian>::do_relocate_sections( |
92e059d8 | 827 | const Symbol_table* symtab, |
2ea97941 | 828 | const Layout* layout, |
92e059d8 ILT |
829 | const unsigned char* pshdrs, |
830 | Views* pviews) | |
61ba1cf9 | 831 | { |
2ea97941 | 832 | unsigned int shnum = this->shnum(); |
029ba973 ILT |
833 | Sized_target<size, big_endian>* target = |
834 | parameters->sized_target<size, big_endian>(); | |
61ba1cf9 | 835 | |
ef9beddf ILT |
836 | const Output_sections& out_sections(this->output_sections()); |
837 | const std::vector<Address>& out_offsets(this->section_offsets_); | |
730cdc88 | 838 | |
92e059d8 | 839 | Relocate_info<size, big_endian> relinfo; |
92e059d8 | 840 | relinfo.symtab = symtab; |
2ea97941 | 841 | relinfo.layout = layout; |
92e059d8 | 842 | relinfo.object = this; |
92e059d8 | 843 | |
61ba1cf9 | 844 | const unsigned char* p = pshdrs + This::shdr_size; |
2ea97941 | 845 | for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size) |
61ba1cf9 ILT |
846 | { |
847 | typename This::Shdr shdr(p); | |
848 | ||
849 | unsigned int sh_type = shdr.get_sh_type(); | |
850 | if (sh_type != elfcpp::SHT_REL && sh_type != elfcpp::SHT_RELA) | |
851 | continue; | |
852 | ||
1307d6cd ILT |
853 | off_t sh_size = shdr.get_sh_size(); |
854 | if (sh_size == 0) | |
855 | continue; | |
856 | ||
d491d34e | 857 | unsigned int index = this->adjust_shndx(shdr.get_sh_info()); |
61ba1cf9 ILT |
858 | if (index >= this->shnum()) |
859 | { | |
75f2446e ILT |
860 | this->error(_("relocation section %u has bad info %u"), |
861 | i, index); | |
862 | continue; | |
61ba1cf9 ILT |
863 | } |
864 | ||
ef9beddf | 865 | Output_section* os = out_sections[index]; |
730cdc88 | 866 | if (os == NULL) |
61ba1cf9 ILT |
867 | { |
868 | // This relocation section is against a section which we | |
869 | // discarded. | |
870 | continue; | |
871 | } | |
ef9beddf | 872 | Address output_offset = out_offsets[index]; |
61ba1cf9 | 873 | |
a3ad94ed | 874 | gold_assert((*pviews)[index].view != NULL); |
8851ecca | 875 | if (parameters->options().relocatable()) |
6a74a719 | 876 | gold_assert((*pviews)[i].view != NULL); |
61ba1cf9 | 877 | |
d491d34e | 878 | if (this->adjust_shndx(shdr.get_sh_link()) != this->symtab_shndx_) |
61ba1cf9 | 879 | { |
75f2446e ILT |
880 | gold_error(_("relocation section %u uses unexpected " |
881 | "symbol table %u"), | |
d491d34e | 882 | i, this->adjust_shndx(shdr.get_sh_link())); |
75f2446e | 883 | continue; |
61ba1cf9 ILT |
884 | } |
885 | ||
61ba1cf9 | 886 | const unsigned char* prelocs = this->get_view(shdr.get_sh_offset(), |
39d0cb0e | 887 | sh_size, true, false); |
61ba1cf9 ILT |
888 | |
889 | unsigned int reloc_size; | |
890 | if (sh_type == elfcpp::SHT_REL) | |
891 | reloc_size = elfcpp::Elf_sizes<size>::rel_size; | |
892 | else | |
893 | reloc_size = elfcpp::Elf_sizes<size>::rela_size; | |
894 | ||
895 | if (reloc_size != shdr.get_sh_entsize()) | |
896 | { | |
75f2446e ILT |
897 | gold_error(_("unexpected entsize for reloc section %u: %lu != %u"), |
898 | i, static_cast<unsigned long>(shdr.get_sh_entsize()), | |
730cdc88 | 899 | reloc_size); |
75f2446e | 900 | continue; |
61ba1cf9 ILT |
901 | } |
902 | ||
903 | size_t reloc_count = sh_size / reloc_size; | |
f5c3f225 | 904 | if (static_cast<off_t>(reloc_count * reloc_size) != sh_size) |
61ba1cf9 | 905 | { |
75f2446e ILT |
906 | gold_error(_("reloc section %u size %lu uneven"), |
907 | i, static_cast<unsigned long>(sh_size)); | |
908 | continue; | |
61ba1cf9 ILT |
909 | } |
910 | ||
eff45813 | 911 | gold_assert(output_offset != invalid_address |
96803768 ILT |
912 | || this->relocs_must_follow_section_writes()); |
913 | ||
92e059d8 | 914 | relinfo.reloc_shndx = i; |
82bb573a | 915 | relinfo.reloc_shdr = p; |
92e059d8 | 916 | relinfo.data_shndx = index; |
82bb573a | 917 | relinfo.data_shdr = pshdrs + index * This::shdr_size; |
2ea97941 | 918 | unsigned char* view = (*pviews)[index].view; |
364c7fa5 ILT |
919 | Address address = (*pviews)[index].address; |
920 | section_size_type view_size = (*pviews)[index].view_size; | |
921 | ||
922 | Reloc_symbol_changes* reloc_map = NULL; | |
923 | if (this->uses_split_stack() && output_offset != invalid_address) | |
924 | { | |
925 | typename This::Shdr data_shdr(pshdrs + index * This::shdr_size); | |
926 | if ((data_shdr.get_sh_flags() & elfcpp::SHF_EXECINSTR) != 0) | |
927 | this->split_stack_adjust(symtab, pshdrs, sh_type, index, | |
2ea97941 | 928 | prelocs, reloc_count, view, view_size, |
364c7fa5 ILT |
929 | &reloc_map); |
930 | } | |
931 | ||
8851ecca | 932 | if (!parameters->options().relocatable()) |
7019cd25 | 933 | { |
364c7fa5 | 934 | target->relocate_section(&relinfo, sh_type, prelocs, reloc_count, os, |
eff45813 | 935 | output_offset == invalid_address, |
2ea97941 | 936 | view, address, view_size, reloc_map); |
8851ecca | 937 | if (parameters->options().emit_relocs()) |
7019cd25 | 938 | this->emit_relocs(&relinfo, i, sh_type, prelocs, reloc_count, |
2ea97941 | 939 | os, output_offset, view, address, view_size, |
364c7fa5 | 940 | (*pviews)[i].view, (*pviews)[i].view_size); |
7019cd25 | 941 | } |
6a74a719 ILT |
942 | else |
943 | { | |
944 | Relocatable_relocs* rr = this->relocatable_relocs(i); | |
364c7fa5 ILT |
945 | target->relocate_for_relocatable(&relinfo, sh_type, prelocs, |
946 | reloc_count, os, output_offset, rr, | |
2ea97941 | 947 | view, address, view_size, |
6a74a719 ILT |
948 | (*pviews)[i].view, |
949 | (*pviews)[i].view_size); | |
950 | } | |
61ba1cf9 ILT |
951 | } |
952 | } | |
953 | ||
7019cd25 ILT |
954 | // Emit the relocs for --emit-relocs. |
955 | ||
956 | template<int size, bool big_endian> | |
957 | void | |
958 | Sized_relobj<size, big_endian>::emit_relocs( | |
959 | const Relocate_info<size, big_endian>* relinfo, | |
960 | unsigned int i, | |
961 | unsigned int sh_type, | |
962 | const unsigned char* prelocs, | |
963 | size_t reloc_count, | |
2ea97941 | 964 | Output_section* output_section, |
ef9beddf | 965 | typename elfcpp::Elf_types<size>::Elf_Addr offset_in_output_section, |
2ea97941 | 966 | unsigned char* view, |
7019cd25 ILT |
967 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
968 | section_size_type view_size, | |
969 | unsigned char* reloc_view, | |
970 | section_size_type reloc_view_size) | |
971 | { | |
972 | if (sh_type == elfcpp::SHT_REL) | |
973 | this->emit_relocs_reltype<elfcpp::SHT_REL>(relinfo, i, prelocs, | |
2ea97941 | 974 | reloc_count, output_section, |
7019cd25 | 975 | offset_in_output_section, |
2ea97941 | 976 | view, address, view_size, |
7019cd25 ILT |
977 | reloc_view, reloc_view_size); |
978 | else | |
979 | { | |
980 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
981 | this->emit_relocs_reltype<elfcpp::SHT_RELA>(relinfo, i, prelocs, | |
2ea97941 | 982 | reloc_count, output_section, |
7019cd25 | 983 | offset_in_output_section, |
2ea97941 | 984 | view, address, view_size, |
7019cd25 ILT |
985 | reloc_view, reloc_view_size); |
986 | } | |
987 | } | |
988 | ||
989 | // Emit the relocs for --emit-relocs, templatized on the type of the | |
990 | // relocation section. | |
991 | ||
992 | template<int size, bool big_endian> | |
993 | template<int sh_type> | |
994 | void | |
995 | Sized_relobj<size, big_endian>::emit_relocs_reltype( | |
996 | const Relocate_info<size, big_endian>* relinfo, | |
997 | unsigned int i, | |
998 | const unsigned char* prelocs, | |
999 | size_t reloc_count, | |
2ea97941 | 1000 | Output_section* output_section, |
ef9beddf | 1001 | typename elfcpp::Elf_types<size>::Elf_Addr offset_in_output_section, |
2ea97941 | 1002 | unsigned char* view, |
7019cd25 ILT |
1003 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
1004 | section_size_type view_size, | |
1005 | unsigned char* reloc_view, | |
1006 | section_size_type reloc_view_size) | |
1007 | { | |
1008 | const Relocatable_relocs* rr = this->relocatable_relocs(i); | |
1009 | relocate_for_relocatable<size, big_endian, sh_type>( | |
1010 | relinfo, | |
1011 | prelocs, | |
1012 | reloc_count, | |
2ea97941 | 1013 | output_section, |
7019cd25 ILT |
1014 | offset_in_output_section, |
1015 | rr, | |
2ea97941 | 1016 | view, |
7019cd25 ILT |
1017 | address, |
1018 | view_size, | |
1019 | reloc_view, | |
1020 | reloc_view_size); | |
1021 | } | |
1022 | ||
a9a60db6 ILT |
1023 | // Create merge hash tables for the local symbols. These are used to |
1024 | // speed up relocations. | |
1025 | ||
1026 | template<int size, bool big_endian> | |
1027 | void | |
1028 | Sized_relobj<size, big_endian>::initialize_input_to_output_maps() | |
1029 | { | |
1030 | const unsigned int loccount = this->local_symbol_count_; | |
1031 | for (unsigned int i = 1; i < loccount; ++i) | |
1032 | { | |
1033 | Symbol_value<size>& lv(this->local_values_[i]); | |
1034 | lv.initialize_input_to_output_map(this); | |
1035 | } | |
1036 | } | |
1037 | ||
1038 | // Free merge hash tables for the local symbols. | |
1039 | ||
1040 | template<int size, bool big_endian> | |
1041 | void | |
1042 | Sized_relobj<size, big_endian>::free_input_to_output_maps() | |
1043 | { | |
1044 | const unsigned int loccount = this->local_symbol_count_; | |
1045 | for (unsigned int i = 1; i < loccount; ++i) | |
1046 | { | |
1047 | Symbol_value<size>& lv(this->local_values_[i]); | |
1048 | lv.free_input_to_output_map(); | |
1049 | } | |
1050 | } | |
1051 | ||
364c7fa5 ILT |
1052 | // If an object was compiled with -fsplit-stack, this is called to |
1053 | // check whether any relocations refer to functions defined in objects | |
1054 | // which were not compiled with -fsplit-stack. If they were, then we | |
1055 | // need to apply some target-specific adjustments to request | |
1056 | // additional stack space. | |
1057 | ||
1058 | template<int size, bool big_endian> | |
1059 | void | |
1060 | Sized_relobj<size, big_endian>::split_stack_adjust( | |
1061 | const Symbol_table* symtab, | |
1062 | const unsigned char* pshdrs, | |
1063 | unsigned int sh_type, | |
1064 | unsigned int shndx, | |
1065 | const unsigned char* prelocs, | |
1066 | size_t reloc_count, | |
2ea97941 | 1067 | unsigned char* view, |
364c7fa5 ILT |
1068 | section_size_type view_size, |
1069 | Reloc_symbol_changes** reloc_map) | |
1070 | { | |
1071 | if (sh_type == elfcpp::SHT_REL) | |
1072 | this->split_stack_adjust_reltype<elfcpp::SHT_REL>(symtab, pshdrs, shndx, | |
1073 | prelocs, reloc_count, | |
2ea97941 | 1074 | view, view_size, |
364c7fa5 ILT |
1075 | reloc_map); |
1076 | else | |
1077 | { | |
1078 | gold_assert(sh_type == elfcpp::SHT_RELA); | |
1079 | this->split_stack_adjust_reltype<elfcpp::SHT_RELA>(symtab, pshdrs, shndx, | |
1080 | prelocs, reloc_count, | |
2ea97941 | 1081 | view, view_size, |
364c7fa5 ILT |
1082 | reloc_map); |
1083 | } | |
1084 | } | |
1085 | ||
1086 | // Adjust for -fsplit-stack, templatized on the type of the relocation | |
1087 | // section. | |
1088 | ||
1089 | template<int size, bool big_endian> | |
1090 | template<int sh_type> | |
1091 | void | |
1092 | Sized_relobj<size, big_endian>::split_stack_adjust_reltype( | |
1093 | const Symbol_table* symtab, | |
1094 | const unsigned char* pshdrs, | |
1095 | unsigned int shndx, | |
1096 | const unsigned char* prelocs, | |
1097 | size_t reloc_count, | |
2ea97941 | 1098 | unsigned char* view, |
364c7fa5 ILT |
1099 | section_size_type view_size, |
1100 | Reloc_symbol_changes** reloc_map) | |
1101 | { | |
1102 | typedef typename Reloc_types<sh_type, size, big_endian>::Reloc Reltype; | |
1103 | const int reloc_size = Reloc_types<sh_type, size, big_endian>::reloc_size; | |
1104 | ||
1105 | size_t local_count = this->local_symbol_count(); | |
1106 | ||
1107 | std::vector<section_offset_type> non_split_refs; | |
1108 | ||
1109 | const unsigned char* pr = prelocs; | |
1110 | for (size_t i = 0; i < reloc_count; ++i, pr += reloc_size) | |
1111 | { | |
1112 | Reltype reloc(pr); | |
1113 | ||
1114 | typename elfcpp::Elf_types<size>::Elf_WXword r_info = reloc.get_r_info(); | |
1115 | unsigned int r_sym = elfcpp::elf_r_sym<size>(r_info); | |
1116 | if (r_sym < local_count) | |
1117 | continue; | |
1118 | ||
1119 | const Symbol* gsym = this->global_symbol(r_sym); | |
1120 | gold_assert(gsym != NULL); | |
1121 | if (gsym->is_forwarder()) | |
1122 | gsym = symtab->resolve_forwards(gsym); | |
1123 | ||
1124 | // See if this relocation refers to a function defined in an | |
1125 | // object compiled without -fsplit-stack. Note that we don't | |
1126 | // care about the type of relocation--this means that in some | |
1127 | // cases we will ask for a large stack unnecessarily, but this | |
1128 | // is not fatal. FIXME: Some targets have symbols which are | |
1129 | // functions but are not type STT_FUNC, e.g., STT_ARM_TFUNC. | |
b6848d3c | 1130 | if (!gsym->is_undefined() |
364c7fa5 ILT |
1131 | && gsym->source() == Symbol::FROM_OBJECT |
1132 | && !gsym->object()->uses_split_stack()) | |
1133 | { | |
b6848d3c ILT |
1134 | unsigned int r_type = elfcpp::elf_r_type<size>(reloc.get_r_info()); |
1135 | if (parameters->target().is_call_to_non_split(gsym, r_type)) | |
1136 | { | |
1137 | section_offset_type offset = | |
1138 | convert_to_section_size_type(reloc.get_r_offset()); | |
1139 | non_split_refs.push_back(offset); | |
1140 | } | |
364c7fa5 ILT |
1141 | } |
1142 | } | |
1143 | ||
1144 | if (non_split_refs.empty()) | |
1145 | return; | |
1146 | ||
1147 | // At this point, every entry in NON_SPLIT_REFS indicates a | |
1148 | // relocation which refers to a function in an object compiled | |
1149 | // without -fsplit-stack. We now have to convert that list into a | |
1150 | // set of offsets to functions. First, we find all the functions. | |
1151 | ||
1152 | Function_offsets function_offsets; | |
1153 | this->find_functions(pshdrs, shndx, &function_offsets); | |
1154 | if (function_offsets.empty()) | |
1155 | return; | |
1156 | ||
1157 | // Now get a list of the function with references to non split-stack | |
1158 | // code. | |
1159 | ||
1160 | Function_offsets calls_non_split; | |
1161 | for (std::vector<section_offset_type>::const_iterator p | |
1162 | = non_split_refs.begin(); | |
1163 | p != non_split_refs.end(); | |
1164 | ++p) | |
1165 | { | |
1166 | Function_offsets::const_iterator low = function_offsets.lower_bound(*p); | |
1167 | if (low == function_offsets.end()) | |
1168 | --low; | |
1169 | else if (low->first == *p) | |
1170 | ; | |
1171 | else if (low == function_offsets.begin()) | |
1172 | continue; | |
1173 | else | |
1174 | --low; | |
1175 | ||
1176 | calls_non_split.insert(*low); | |
1177 | } | |
1178 | if (calls_non_split.empty()) | |
1179 | return; | |
1180 | ||
1181 | // Now we have a set of functions to adjust. The adjustments are | |
1182 | // target specific. Besides changing the output section view | |
1183 | // however, it likes, the target may request a relocation change | |
1184 | // from one global symbol name to another. | |
1185 | ||
1186 | for (Function_offsets::const_iterator p = calls_non_split.begin(); | |
1187 | p != calls_non_split.end(); | |
1188 | ++p) | |
1189 | { | |
1190 | std::string from; | |
1191 | std::string to; | |
1192 | parameters->target().calls_non_split(this, shndx, p->first, p->second, | |
2ea97941 | 1193 | view, view_size, &from, &to); |
364c7fa5 ILT |
1194 | if (!from.empty()) |
1195 | { | |
1196 | gold_assert(!to.empty()); | |
1197 | Symbol* tosym = NULL; | |
1198 | ||
1199 | // Find relocations in the relevant function which are for | |
1200 | // FROM. | |
1201 | pr = prelocs; | |
1202 | for (size_t i = 0; i < reloc_count; ++i, pr += reloc_size) | |
1203 | { | |
1204 | Reltype reloc(pr); | |
1205 | ||
1206 | typename elfcpp::Elf_types<size>::Elf_WXword r_info = | |
1207 | reloc.get_r_info(); | |
1208 | unsigned int r_sym = elfcpp::elf_r_sym<size>(r_info); | |
1209 | if (r_sym < local_count) | |
1210 | continue; | |
1211 | ||
2ea97941 | 1212 | section_offset_type offset = |
364c7fa5 | 1213 | convert_to_section_size_type(reloc.get_r_offset()); |
2ea97941 ILT |
1214 | if (offset < p->first |
1215 | || (offset | |
364c7fa5 ILT |
1216 | >= (p->first |
1217 | + static_cast<section_offset_type>(p->second)))) | |
1218 | continue; | |
1219 | ||
1220 | const Symbol* gsym = this->global_symbol(r_sym); | |
1221 | if (from == gsym->name()) | |
1222 | { | |
1223 | if (tosym == NULL) | |
1224 | { | |
1225 | tosym = symtab->lookup(to.c_str()); | |
1226 | if (tosym == NULL) | |
1227 | { | |
1228 | this->error(_("could not convert call " | |
1229 | "to '%s' to '%s'"), | |
1230 | from.c_str(), to.c_str()); | |
1231 | break; | |
1232 | } | |
1233 | } | |
1234 | ||
1235 | if (*reloc_map == NULL) | |
1236 | *reloc_map = new Reloc_symbol_changes(reloc_count); | |
1237 | (*reloc_map)->set(i, tosym); | |
1238 | } | |
1239 | } | |
1240 | } | |
1241 | } | |
1242 | } | |
1243 | ||
1244 | // Find all the function in this object defined in section SHNDX. | |
1245 | // Store their offsets in the section in FUNCTION_OFFSETS. | |
1246 | ||
1247 | template<int size, bool big_endian> | |
1248 | void | |
1249 | Sized_relobj<size, big_endian>::find_functions( | |
1250 | const unsigned char* pshdrs, | |
1251 | unsigned int shndx, | |
1252 | Sized_relobj<size, big_endian>::Function_offsets* function_offsets) | |
1253 | { | |
1254 | // We need to read the symbols to find the functions. If we wanted | |
1255 | // to, we could cache reading the symbols across all sections in the | |
1256 | // object. | |
2ea97941 ILT |
1257 | const unsigned int symtab_shndx = this->symtab_shndx_; |
1258 | typename This::Shdr symtabshdr(pshdrs + symtab_shndx * This::shdr_size); | |
364c7fa5 ILT |
1259 | gold_assert(symtabshdr.get_sh_type() == elfcpp::SHT_SYMTAB); |
1260 | ||
1261 | typename elfcpp::Elf_types<size>::Elf_WXword sh_size = | |
1262 | symtabshdr.get_sh_size(); | |
1263 | const unsigned char* psyms = this->get_view(symtabshdr.get_sh_offset(), | |
1264 | sh_size, true, true); | |
1265 | ||
2ea97941 ILT |
1266 | const int sym_size = This::sym_size; |
1267 | const unsigned int symcount = sh_size / sym_size; | |
1268 | for (unsigned int i = 0; i < symcount; ++i, psyms += sym_size) | |
364c7fa5 ILT |
1269 | { |
1270 | typename elfcpp::Sym<size, big_endian> isym(psyms); | |
1271 | ||
1272 | // FIXME: Some targets can have functions which do not have type | |
1273 | // STT_FUNC, e.g., STT_ARM_TFUNC. | |
1274 | if (isym.get_st_type() != elfcpp::STT_FUNC | |
1275 | || isym.get_st_size() == 0) | |
1276 | continue; | |
1277 | ||
1278 | bool is_ordinary; | |
1279 | unsigned int sym_shndx = this->adjust_sym_shndx(i, isym.get_st_shndx(), | |
1280 | &is_ordinary); | |
1281 | if (!is_ordinary || sym_shndx != shndx) | |
1282 | continue; | |
1283 | ||
1284 | section_offset_type value = | |
1285 | convert_to_section_size_type(isym.get_st_value()); | |
1286 | section_size_type fnsize = | |
1287 | convert_to_section_size_type(isym.get_st_size()); | |
1288 | ||
1289 | (*function_offsets)[value] = fnsize; | |
1290 | } | |
1291 | } | |
1292 | ||
a9a60db6 ILT |
1293 | // Class Merged_symbol_value. |
1294 | ||
1295 | template<int size> | |
1296 | void | |
1297 | Merged_symbol_value<size>::initialize_input_to_output_map( | |
1298 | const Relobj* object, | |
1299 | unsigned int input_shndx) | |
1300 | { | |
1301 | Object_merge_map* map = object->merge_map(); | |
1302 | map->initialize_input_to_output_map<size>(input_shndx, | |
1303 | this->output_start_address_, | |
1304 | &this->output_addresses_); | |
1305 | } | |
1306 | ||
1307 | // Get the output value corresponding to an input offset if we | |
1308 | // couldn't find it in the hash table. | |
1309 | ||
1310 | template<int size> | |
1311 | typename elfcpp::Elf_types<size>::Elf_Addr | |
1312 | Merged_symbol_value<size>::value_from_output_section( | |
1313 | const Relobj* object, | |
1314 | unsigned int input_shndx, | |
1315 | typename elfcpp::Elf_types<size>::Elf_Addr input_offset) const | |
1316 | { | |
1317 | section_offset_type output_offset; | |
1318 | bool found = object->merge_map()->get_output_offset(NULL, input_shndx, | |
1319 | input_offset, | |
1320 | &output_offset); | |
1321 | ||
1322 | // If this assertion fails, it means that some relocation was | |
1323 | // against a portion of an input merge section which we didn't map | |
1324 | // to the output file and we didn't explicitly discard. We should | |
1325 | // always map all portions of input merge sections. | |
1326 | gold_assert(found); | |
1327 | ||
1328 | if (output_offset == -1) | |
1329 | return 0; | |
1330 | else | |
1331 | return this->output_start_address_ + output_offset; | |
1332 | } | |
1333 | ||
730cdc88 ILT |
1334 | // Track_relocs methods. |
1335 | ||
1336 | // Initialize the class to track the relocs. This gets the object, | |
1337 | // the reloc section index, and the type of the relocs. This returns | |
1338 | // false if something goes wrong. | |
1339 | ||
1340 | template<int size, bool big_endian> | |
1341 | bool | |
1342 | Track_relocs<size, big_endian>::initialize( | |
b696e6d4 | 1343 | Object* object, |
730cdc88 ILT |
1344 | unsigned int reloc_shndx, |
1345 | unsigned int reloc_type) | |
1346 | { | |
730cdc88 ILT |
1347 | // If RELOC_SHNDX is -1U, it means there is more than one reloc |
1348 | // section for the .eh_frame section. We can't handle that case. | |
1349 | if (reloc_shndx == -1U) | |
1350 | return false; | |
1351 | ||
1352 | // If RELOC_SHNDX is 0, there is no reloc section. | |
1353 | if (reloc_shndx == 0) | |
1354 | return true; | |
1355 | ||
1356 | // Get the contents of the reloc section. | |
1357 | this->prelocs_ = object->section_contents(reloc_shndx, &this->len_, false); | |
1358 | ||
1359 | if (reloc_type == elfcpp::SHT_REL) | |
1360 | this->reloc_size_ = elfcpp::Elf_sizes<size>::rel_size; | |
1361 | else if (reloc_type == elfcpp::SHT_RELA) | |
1362 | this->reloc_size_ = elfcpp::Elf_sizes<size>::rela_size; | |
1363 | else | |
1364 | gold_unreachable(); | |
1365 | ||
1366 | if (this->len_ % this->reloc_size_ != 0) | |
1367 | { | |
1368 | object->error(_("reloc section size %zu is not a multiple of " | |
1369 | "reloc size %d\n"), | |
1370 | static_cast<size_t>(this->len_), | |
1371 | this->reloc_size_); | |
1372 | return false; | |
1373 | } | |
1374 | ||
1375 | return true; | |
1376 | } | |
1377 | ||
1378 | // Return the offset of the next reloc, or -1 if there isn't one. | |
1379 | ||
1380 | template<int size, bool big_endian> | |
1381 | off_t | |
1382 | Track_relocs<size, big_endian>::next_offset() const | |
1383 | { | |
1384 | if (this->pos_ >= this->len_) | |
1385 | return -1; | |
1386 | ||
1387 | // Rel and Rela start out the same, so we can always use Rel to find | |
1388 | // the r_offset value. | |
1389 | elfcpp::Rel<size, big_endian> rel(this->prelocs_ + this->pos_); | |
1390 | return rel.get_r_offset(); | |
1391 | } | |
1392 | ||
1393 | // Return the index of the symbol referenced by the next reloc, or -1U | |
1394 | // if there aren't any more relocs. | |
1395 | ||
1396 | template<int size, bool big_endian> | |
1397 | unsigned int | |
1398 | Track_relocs<size, big_endian>::next_symndx() const | |
1399 | { | |
1400 | if (this->pos_ >= this->len_) | |
1401 | return -1U; | |
1402 | ||
1403 | // Rel and Rela start out the same, so we can use Rel to find the | |
1404 | // symbol index. | |
1405 | elfcpp::Rel<size, big_endian> rel(this->prelocs_ + this->pos_); | |
1406 | return elfcpp::elf_r_sym<size>(rel.get_r_info()); | |
1407 | } | |
1408 | ||
1409 | // Advance to the next reloc whose r_offset is greater than or equal | |
1410 | // to OFFSET. Return the number of relocs we skip. | |
1411 | ||
1412 | template<int size, bool big_endian> | |
1413 | int | |
1414 | Track_relocs<size, big_endian>::advance(off_t offset) | |
1415 | { | |
1416 | int ret = 0; | |
1417 | while (this->pos_ < this->len_) | |
1418 | { | |
1419 | // Rel and Rela start out the same, so we can always use Rel to | |
1420 | // find the r_offset value. | |
1421 | elfcpp::Rel<size, big_endian> rel(this->prelocs_ + this->pos_); | |
1422 | if (static_cast<off_t>(rel.get_r_offset()) >= offset) | |
1423 | break; | |
1424 | ++ret; | |
1425 | this->pos_ += this->reloc_size_; | |
1426 | } | |
1427 | return ret; | |
1428 | } | |
1429 | ||
12c0daef | 1430 | // Instantiate the templates we need. |
61ba1cf9 | 1431 | |
193a53d9 | 1432 | #ifdef HAVE_TARGET_32_LITTLE |
92e059d8 ILT |
1433 | template |
1434 | void | |
f6ce93d6 | 1435 | Sized_relobj<32, false>::do_read_relocs(Read_relocs_data* rd); |
193a53d9 | 1436 | #endif |
92e059d8 | 1437 | |
193a53d9 | 1438 | #ifdef HAVE_TARGET_32_BIG |
92e059d8 ILT |
1439 | template |
1440 | void | |
f6ce93d6 | 1441 | Sized_relobj<32, true>::do_read_relocs(Read_relocs_data* rd); |
193a53d9 | 1442 | #endif |
92e059d8 | 1443 | |
193a53d9 | 1444 | #ifdef HAVE_TARGET_64_LITTLE |
92e059d8 ILT |
1445 | template |
1446 | void | |
f6ce93d6 | 1447 | Sized_relobj<64, false>::do_read_relocs(Read_relocs_data* rd); |
193a53d9 | 1448 | #endif |
92e059d8 | 1449 | |
193a53d9 | 1450 | #ifdef HAVE_TARGET_64_BIG |
92e059d8 ILT |
1451 | template |
1452 | void | |
f6ce93d6 | 1453 | Sized_relobj<64, true>::do_read_relocs(Read_relocs_data* rd); |
193a53d9 | 1454 | #endif |
92e059d8 | 1455 | |
6d03d481 ST |
1456 | #ifdef HAVE_TARGET_32_LITTLE |
1457 | template | |
1458 | void | |
ad0f2072 | 1459 | Sized_relobj<32, false>::do_gc_process_relocs(Symbol_table* symtab, |
2ea97941 | 1460 | Layout* layout, |
ad0f2072 | 1461 | Read_relocs_data* rd); |
6d03d481 ST |
1462 | #endif |
1463 | ||
1464 | #ifdef HAVE_TARGET_32_BIG | |
1465 | template | |
1466 | void | |
ad0f2072 | 1467 | Sized_relobj<32, true>::do_gc_process_relocs(Symbol_table* symtab, |
2ea97941 | 1468 | Layout* layout, |
ad0f2072 | 1469 | Read_relocs_data* rd); |
6d03d481 ST |
1470 | #endif |
1471 | ||
1472 | #ifdef HAVE_TARGET_64_LITTLE | |
1473 | template | |
1474 | void | |
ad0f2072 | 1475 | Sized_relobj<64, false>::do_gc_process_relocs(Symbol_table* symtab, |
2ea97941 | 1476 | Layout* layout, |
ad0f2072 | 1477 | Read_relocs_data* rd); |
6d03d481 ST |
1478 | #endif |
1479 | ||
1480 | #ifdef HAVE_TARGET_64_BIG | |
1481 | template | |
1482 | void | |
ad0f2072 | 1483 | Sized_relobj<64, true>::do_gc_process_relocs(Symbol_table* symtab, |
2ea97941 | 1484 | Layout* layout, |
ad0f2072 | 1485 | Read_relocs_data* rd); |
6d03d481 ST |
1486 | #endif |
1487 | ||
193a53d9 | 1488 | #ifdef HAVE_TARGET_32_LITTLE |
92e059d8 ILT |
1489 | template |
1490 | void | |
ad0f2072 | 1491 | Sized_relobj<32, false>::do_scan_relocs(Symbol_table* symtab, |
2ea97941 | 1492 | Layout* layout, |
92e059d8 | 1493 | Read_relocs_data* rd); |
193a53d9 | 1494 | #endif |
92e059d8 | 1495 | |
193a53d9 | 1496 | #ifdef HAVE_TARGET_32_BIG |
92e059d8 ILT |
1497 | template |
1498 | void | |
ad0f2072 | 1499 | Sized_relobj<32, true>::do_scan_relocs(Symbol_table* symtab, |
2ea97941 | 1500 | Layout* layout, |
92e059d8 | 1501 | Read_relocs_data* rd); |
193a53d9 | 1502 | #endif |
92e059d8 | 1503 | |
193a53d9 | 1504 | #ifdef HAVE_TARGET_64_LITTLE |
92e059d8 ILT |
1505 | template |
1506 | void | |
ad0f2072 | 1507 | Sized_relobj<64, false>::do_scan_relocs(Symbol_table* symtab, |
2ea97941 | 1508 | Layout* layout, |
92e059d8 | 1509 | Read_relocs_data* rd); |
193a53d9 | 1510 | #endif |
92e059d8 | 1511 | |
193a53d9 | 1512 | #ifdef HAVE_TARGET_64_BIG |
92e059d8 ILT |
1513 | template |
1514 | void | |
ad0f2072 | 1515 | Sized_relobj<64, true>::do_scan_relocs(Symbol_table* symtab, |
2ea97941 | 1516 | Layout* layout, |
92e059d8 | 1517 | Read_relocs_data* rd); |
193a53d9 | 1518 | #endif |
92e059d8 | 1519 | |
193a53d9 | 1520 | #ifdef HAVE_TARGET_32_LITTLE |
61ba1cf9 ILT |
1521 | template |
1522 | void | |
ad0f2072 | 1523 | Sized_relobj<32, false>::do_relocate(const Symbol_table* symtab, |
2ea97941 | 1524 | const Layout* layout, |
61ba1cf9 | 1525 | Output_file* of); |
193a53d9 | 1526 | #endif |
61ba1cf9 | 1527 | |
193a53d9 | 1528 | #ifdef HAVE_TARGET_32_BIG |
61ba1cf9 ILT |
1529 | template |
1530 | void | |
ad0f2072 | 1531 | Sized_relobj<32, true>::do_relocate(const Symbol_table* symtab, |
2ea97941 | 1532 | const Layout* layout, |
61ba1cf9 | 1533 | Output_file* of); |
193a53d9 | 1534 | #endif |
61ba1cf9 | 1535 | |
193a53d9 | 1536 | #ifdef HAVE_TARGET_64_LITTLE |
61ba1cf9 ILT |
1537 | template |
1538 | void | |
ad0f2072 | 1539 | Sized_relobj<64, false>::do_relocate(const Symbol_table* symtab, |
2ea97941 | 1540 | const Layout* layout, |
61ba1cf9 | 1541 | Output_file* of); |
193a53d9 | 1542 | #endif |
61ba1cf9 | 1543 | |
193a53d9 | 1544 | #ifdef HAVE_TARGET_64_BIG |
61ba1cf9 ILT |
1545 | template |
1546 | void | |
ad0f2072 | 1547 | Sized_relobj<64, true>::do_relocate(const Symbol_table* symtab, |
2ea97941 | 1548 | const Layout* layout, |
61ba1cf9 | 1549 | Output_file* of); |
193a53d9 | 1550 | #endif |
61ba1cf9 | 1551 | |
72adc4fa DK |
1552 | #ifdef HAVE_TARGET_32_LITTLE |
1553 | template | |
1554 | void | |
1555 | Sized_relobj<32, false>::do_relocate_sections( | |
72adc4fa | 1556 | const Symbol_table* symtab, |
2ea97941 | 1557 | const Layout* layout, |
72adc4fa DK |
1558 | const unsigned char* pshdrs, |
1559 | Views* pviews); | |
1560 | #endif | |
1561 | ||
1562 | #ifdef HAVE_TARGET_32_BIG | |
1563 | template | |
1564 | void | |
1565 | Sized_relobj<32, true>::do_relocate_sections( | |
72adc4fa | 1566 | const Symbol_table* symtab, |
2ea97941 | 1567 | const Layout* layout, |
72adc4fa DK |
1568 | const unsigned char* pshdrs, |
1569 | Views* pviews); | |
1570 | #endif | |
1571 | ||
1572 | #ifdef HAVE_TARGET_64_LITTLE | |
1573 | template | |
1574 | void | |
1575 | Sized_relobj<64, false>::do_relocate_sections( | |
72adc4fa | 1576 | const Symbol_table* symtab, |
2ea97941 | 1577 | const Layout* layout, |
72adc4fa DK |
1578 | const unsigned char* pshdrs, |
1579 | Views* pviews); | |
1580 | #endif | |
1581 | ||
1582 | #ifdef HAVE_TARGET_64_BIG | |
1583 | template | |
1584 | void | |
1585 | Sized_relobj<64, true>::do_relocate_sections( | |
72adc4fa DK |
1586 | const Symbol_table* symtab, |
1587 | const Layout* layout, | |
1588 | const unsigned char* pshdrs, | |
1589 | Views* pviews); | |
1590 | #endif | |
1591 | ||
3e4afc80 ILT |
1592 | #ifdef HAVE_TARGET_32_LITTLE |
1593 | template | |
1594 | void | |
1595 | Sized_relobj<32, false>::initialize_input_to_output_maps(); | |
1596 | ||
1597 | template | |
1598 | void | |
1599 | Sized_relobj<32, false>::free_input_to_output_maps(); | |
1600 | #endif | |
1601 | ||
1602 | #ifdef HAVE_TARGET_32_BIG | |
1603 | template | |
1604 | void | |
1605 | Sized_relobj<32, true>::initialize_input_to_output_maps(); | |
1606 | ||
1607 | template | |
1608 | void | |
1609 | Sized_relobj<32, true>::free_input_to_output_maps(); | |
1610 | #endif | |
1611 | ||
1612 | #ifdef HAVE_TARGET_64_LITTLE | |
1613 | template | |
1614 | void | |
1615 | Sized_relobj<64, false>::initialize_input_to_output_maps(); | |
1616 | ||
1617 | template | |
1618 | void | |
1619 | Sized_relobj<64, false>::free_input_to_output_maps(); | |
1620 | #endif | |
1621 | ||
1622 | #ifdef HAVE_TARGET_64_BIG | |
1623 | template | |
1624 | void | |
1625 | Sized_relobj<64, true>::initialize_input_to_output_maps(); | |
1626 | ||
1627 | template | |
1628 | void | |
1629 | Sized_relobj<64, true>::free_input_to_output_maps(); | |
1630 | #endif | |
1631 | ||
a9a60db6 ILT |
1632 | #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG) |
1633 | template | |
1634 | class Merged_symbol_value<32>; | |
1635 | #endif | |
1636 | ||
1637 | #if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG) | |
1638 | template | |
1639 | class Merged_symbol_value<64>; | |
1640 | #endif | |
1641 | ||
1642 | #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_32_BIG) | |
1643 | template | |
1644 | class Symbol_value<32>; | |
1645 | #endif | |
1646 | ||
1647 | #if defined(HAVE_TARGET_64_LITTLE) || defined(HAVE_TARGET_64_BIG) | |
1648 | template | |
1649 | class Symbol_value<64>; | |
1650 | #endif | |
1651 | ||
730cdc88 ILT |
1652 | #ifdef HAVE_TARGET_32_LITTLE |
1653 | template | |
1654 | class Track_relocs<32, false>; | |
1655 | #endif | |
1656 | ||
1657 | #ifdef HAVE_TARGET_32_BIG | |
1658 | template | |
1659 | class Track_relocs<32, true>; | |
1660 | #endif | |
1661 | ||
1662 | #ifdef HAVE_TARGET_64_LITTLE | |
1663 | template | |
1664 | class Track_relocs<64, false>; | |
1665 | #endif | |
1666 | ||
1667 | #ifdef HAVE_TARGET_64_BIG | |
1668 | template | |
1669 | class Track_relocs<64, true>; | |
1670 | #endif | |
1671 | ||
61ba1cf9 | 1672 | } // End namespace gold. |