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a2fb1b05 ILT |
1 | // output.cc -- manage the output file for gold |
2 | ||
6cb15b7f ILT |
3 | // Copyright 2006, 2007 Free Software Foundation, Inc. |
4 | // Written by Ian Lance Taylor <iant@google.com>. | |
5 | ||
6 | // This file is part of gold. | |
7 | ||
8 | // This program is free software; you can redistribute it and/or modify | |
9 | // it under the terms of the GNU General Public License as published by | |
10 | // the Free Software Foundation; either version 3 of the License, or | |
11 | // (at your option) any later version. | |
12 | ||
13 | // This program is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | ||
18 | // You should have received a copy of the GNU General Public License | |
19 | // along with this program; if not, write to the Free Software | |
20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | // MA 02110-1301, USA. | |
22 | ||
a2fb1b05 ILT |
23 | #include "gold.h" |
24 | ||
25 | #include <cstdlib> | |
61ba1cf9 ILT |
26 | #include <cerrno> |
27 | #include <fcntl.h> | |
28 | #include <unistd.h> | |
29 | #include <sys/mman.h> | |
4e9d8586 | 30 | #include <sys/stat.h> |
75f65a3e | 31 | #include <algorithm> |
5ffcaa86 | 32 | #include "libiberty.h" // for unlink_if_ordinary() |
a2fb1b05 | 33 | |
7e1edb90 | 34 | #include "parameters.h" |
a2fb1b05 | 35 | #include "object.h" |
ead1e424 ILT |
36 | #include "symtab.h" |
37 | #include "reloc.h" | |
b8e6aad9 | 38 | #include "merge.h" |
a2fb1b05 ILT |
39 | #include "output.h" |
40 | ||
41 | namespace gold | |
42 | { | |
43 | ||
a3ad94ed ILT |
44 | // Output_data variables. |
45 | ||
27bc2bce | 46 | bool Output_data::allocated_sizes_are_fixed; |
a3ad94ed | 47 | |
a2fb1b05 ILT |
48 | // Output_data methods. |
49 | ||
50 | Output_data::~Output_data() | |
51 | { | |
52 | } | |
53 | ||
730cdc88 ILT |
54 | // Return the default alignment for the target size. |
55 | ||
56 | uint64_t | |
57 | Output_data::default_alignment() | |
58 | { | |
59 | return Output_data::default_alignment_for_size(parameters->get_size()); | |
60 | } | |
61 | ||
75f65a3e ILT |
62 | // Return the default alignment for a size--32 or 64. |
63 | ||
64 | uint64_t | |
730cdc88 | 65 | Output_data::default_alignment_for_size(int size) |
75f65a3e ILT |
66 | { |
67 | if (size == 32) | |
68 | return 4; | |
69 | else if (size == 64) | |
70 | return 8; | |
71 | else | |
a3ad94ed | 72 | gold_unreachable(); |
75f65a3e ILT |
73 | } |
74 | ||
75f65a3e ILT |
75 | // Output_section_header methods. This currently assumes that the |
76 | // segment and section lists are complete at construction time. | |
77 | ||
78 | Output_section_headers::Output_section_headers( | |
16649710 ILT |
79 | const Layout* layout, |
80 | const Layout::Segment_list* segment_list, | |
81 | const Layout::Section_list* unattached_section_list, | |
61ba1cf9 | 82 | const Stringpool* secnamepool) |
9025d29d | 83 | : layout_(layout), |
75f65a3e | 84 | segment_list_(segment_list), |
a3ad94ed | 85 | unattached_section_list_(unattached_section_list), |
61ba1cf9 | 86 | secnamepool_(secnamepool) |
75f65a3e | 87 | { |
61ba1cf9 ILT |
88 | // Count all the sections. Start with 1 for the null section. |
89 | off_t count = 1; | |
16649710 ILT |
90 | for (Layout::Segment_list::const_iterator p = segment_list->begin(); |
91 | p != segment_list->end(); | |
75f65a3e | 92 | ++p) |
ead1e424 ILT |
93 | if ((*p)->type() == elfcpp::PT_LOAD) |
94 | count += (*p)->output_section_count(); | |
16649710 | 95 | count += unattached_section_list->size(); |
75f65a3e | 96 | |
9025d29d | 97 | const int size = parameters->get_size(); |
75f65a3e ILT |
98 | int shdr_size; |
99 | if (size == 32) | |
100 | shdr_size = elfcpp::Elf_sizes<32>::shdr_size; | |
101 | else if (size == 64) | |
102 | shdr_size = elfcpp::Elf_sizes<64>::shdr_size; | |
103 | else | |
a3ad94ed | 104 | gold_unreachable(); |
75f65a3e ILT |
105 | |
106 | this->set_data_size(count * shdr_size); | |
107 | } | |
108 | ||
61ba1cf9 ILT |
109 | // Write out the section headers. |
110 | ||
75f65a3e | 111 | void |
61ba1cf9 | 112 | Output_section_headers::do_write(Output_file* of) |
a2fb1b05 | 113 | { |
9025d29d | 114 | if (parameters->get_size() == 32) |
61ba1cf9 | 115 | { |
9025d29d ILT |
116 | if (parameters->is_big_endian()) |
117 | { | |
118 | #ifdef HAVE_TARGET_32_BIG | |
119 | this->do_sized_write<32, true>(of); | |
120 | #else | |
121 | gold_unreachable(); | |
122 | #endif | |
123 | } | |
61ba1cf9 | 124 | else |
9025d29d ILT |
125 | { |
126 | #ifdef HAVE_TARGET_32_LITTLE | |
127 | this->do_sized_write<32, false>(of); | |
128 | #else | |
129 | gold_unreachable(); | |
130 | #endif | |
131 | } | |
61ba1cf9 | 132 | } |
9025d29d | 133 | else if (parameters->get_size() == 64) |
61ba1cf9 | 134 | { |
9025d29d ILT |
135 | if (parameters->is_big_endian()) |
136 | { | |
137 | #ifdef HAVE_TARGET_64_BIG | |
138 | this->do_sized_write<64, true>(of); | |
139 | #else | |
140 | gold_unreachable(); | |
141 | #endif | |
142 | } | |
61ba1cf9 | 143 | else |
9025d29d ILT |
144 | { |
145 | #ifdef HAVE_TARGET_64_LITTLE | |
146 | this->do_sized_write<64, false>(of); | |
147 | #else | |
148 | gold_unreachable(); | |
149 | #endif | |
150 | } | |
61ba1cf9 ILT |
151 | } |
152 | else | |
a3ad94ed | 153 | gold_unreachable(); |
61ba1cf9 ILT |
154 | } |
155 | ||
156 | template<int size, bool big_endian> | |
157 | void | |
158 | Output_section_headers::do_sized_write(Output_file* of) | |
159 | { | |
160 | off_t all_shdrs_size = this->data_size(); | |
161 | unsigned char* view = of->get_output_view(this->offset(), all_shdrs_size); | |
162 | ||
163 | const int shdr_size = elfcpp::Elf_sizes<size>::shdr_size; | |
164 | unsigned char* v = view; | |
165 | ||
166 | { | |
167 | typename elfcpp::Shdr_write<size, big_endian> oshdr(v); | |
168 | oshdr.put_sh_name(0); | |
169 | oshdr.put_sh_type(elfcpp::SHT_NULL); | |
170 | oshdr.put_sh_flags(0); | |
171 | oshdr.put_sh_addr(0); | |
172 | oshdr.put_sh_offset(0); | |
173 | oshdr.put_sh_size(0); | |
174 | oshdr.put_sh_link(0); | |
175 | oshdr.put_sh_info(0); | |
176 | oshdr.put_sh_addralign(0); | |
177 | oshdr.put_sh_entsize(0); | |
178 | } | |
179 | ||
180 | v += shdr_size; | |
181 | ||
ead1e424 | 182 | unsigned shndx = 1; |
16649710 ILT |
183 | for (Layout::Segment_list::const_iterator p = this->segment_list_->begin(); |
184 | p != this->segment_list_->end(); | |
61ba1cf9 | 185 | ++p) |
593f47df | 186 | v = (*p)->write_section_headers SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( |
16649710 | 187 | this->layout_, this->secnamepool_, v, &shndx |
ead1e424 | 188 | SELECT_SIZE_ENDIAN(size, big_endian)); |
a3ad94ed | 189 | for (Layout::Section_list::const_iterator p = |
16649710 ILT |
190 | this->unattached_section_list_->begin(); |
191 | p != this->unattached_section_list_->end(); | |
61ba1cf9 ILT |
192 | ++p) |
193 | { | |
a3ad94ed | 194 | gold_assert(shndx == (*p)->out_shndx()); |
61ba1cf9 | 195 | elfcpp::Shdr_write<size, big_endian> oshdr(v); |
16649710 | 196 | (*p)->write_header(this->layout_, this->secnamepool_, &oshdr); |
61ba1cf9 | 197 | v += shdr_size; |
ead1e424 | 198 | ++shndx; |
61ba1cf9 ILT |
199 | } |
200 | ||
201 | of->write_output_view(this->offset(), all_shdrs_size, view); | |
a2fb1b05 ILT |
202 | } |
203 | ||
54dc6425 ILT |
204 | // Output_segment_header methods. |
205 | ||
61ba1cf9 | 206 | Output_segment_headers::Output_segment_headers( |
61ba1cf9 | 207 | const Layout::Segment_list& segment_list) |
9025d29d | 208 | : segment_list_(segment_list) |
61ba1cf9 | 209 | { |
9025d29d | 210 | const int size = parameters->get_size(); |
61ba1cf9 ILT |
211 | int phdr_size; |
212 | if (size == 32) | |
213 | phdr_size = elfcpp::Elf_sizes<32>::phdr_size; | |
214 | else if (size == 64) | |
215 | phdr_size = elfcpp::Elf_sizes<64>::phdr_size; | |
216 | else | |
a3ad94ed | 217 | gold_unreachable(); |
61ba1cf9 ILT |
218 | |
219 | this->set_data_size(segment_list.size() * phdr_size); | |
220 | } | |
221 | ||
54dc6425 | 222 | void |
61ba1cf9 | 223 | Output_segment_headers::do_write(Output_file* of) |
75f65a3e | 224 | { |
9025d29d | 225 | if (parameters->get_size() == 32) |
61ba1cf9 | 226 | { |
9025d29d ILT |
227 | if (parameters->is_big_endian()) |
228 | { | |
229 | #ifdef HAVE_TARGET_32_BIG | |
230 | this->do_sized_write<32, true>(of); | |
231 | #else | |
232 | gold_unreachable(); | |
233 | #endif | |
234 | } | |
61ba1cf9 | 235 | else |
9025d29d ILT |
236 | { |
237 | #ifdef HAVE_TARGET_32_LITTLE | |
61ba1cf9 | 238 | this->do_sized_write<32, false>(of); |
9025d29d ILT |
239 | #else |
240 | gold_unreachable(); | |
241 | #endif | |
242 | } | |
61ba1cf9 | 243 | } |
9025d29d | 244 | else if (parameters->get_size() == 64) |
61ba1cf9 | 245 | { |
9025d29d ILT |
246 | if (parameters->is_big_endian()) |
247 | { | |
248 | #ifdef HAVE_TARGET_64_BIG | |
249 | this->do_sized_write<64, true>(of); | |
250 | #else | |
251 | gold_unreachable(); | |
252 | #endif | |
253 | } | |
61ba1cf9 | 254 | else |
9025d29d ILT |
255 | { |
256 | #ifdef HAVE_TARGET_64_LITTLE | |
257 | this->do_sized_write<64, false>(of); | |
258 | #else | |
259 | gold_unreachable(); | |
260 | #endif | |
261 | } | |
61ba1cf9 ILT |
262 | } |
263 | else | |
a3ad94ed | 264 | gold_unreachable(); |
61ba1cf9 ILT |
265 | } |
266 | ||
267 | template<int size, bool big_endian> | |
268 | void | |
269 | Output_segment_headers::do_sized_write(Output_file* of) | |
270 | { | |
271 | const int phdr_size = elfcpp::Elf_sizes<size>::phdr_size; | |
272 | off_t all_phdrs_size = this->segment_list_.size() * phdr_size; | |
273 | unsigned char* view = of->get_output_view(this->offset(), | |
274 | all_phdrs_size); | |
275 | unsigned char* v = view; | |
276 | for (Layout::Segment_list::const_iterator p = this->segment_list_.begin(); | |
277 | p != this->segment_list_.end(); | |
278 | ++p) | |
279 | { | |
280 | elfcpp::Phdr_write<size, big_endian> ophdr(v); | |
281 | (*p)->write_header(&ophdr); | |
282 | v += phdr_size; | |
283 | } | |
284 | ||
285 | of->write_output_view(this->offset(), all_phdrs_size, view); | |
75f65a3e ILT |
286 | } |
287 | ||
288 | // Output_file_header methods. | |
289 | ||
9025d29d | 290 | Output_file_header::Output_file_header(const Target* target, |
75f65a3e ILT |
291 | const Symbol_table* symtab, |
292 | const Output_segment_headers* osh) | |
9025d29d | 293 | : target_(target), |
75f65a3e | 294 | symtab_(symtab), |
61ba1cf9 | 295 | segment_header_(osh), |
75f65a3e ILT |
296 | section_header_(NULL), |
297 | shstrtab_(NULL) | |
298 | { | |
9025d29d | 299 | const int size = parameters->get_size(); |
61ba1cf9 ILT |
300 | int ehdr_size; |
301 | if (size == 32) | |
302 | ehdr_size = elfcpp::Elf_sizes<32>::ehdr_size; | |
303 | else if (size == 64) | |
304 | ehdr_size = elfcpp::Elf_sizes<64>::ehdr_size; | |
305 | else | |
a3ad94ed | 306 | gold_unreachable(); |
61ba1cf9 ILT |
307 | |
308 | this->set_data_size(ehdr_size); | |
75f65a3e ILT |
309 | } |
310 | ||
311 | // Set the section table information for a file header. | |
312 | ||
313 | void | |
314 | Output_file_header::set_section_info(const Output_section_headers* shdrs, | |
315 | const Output_section* shstrtab) | |
316 | { | |
317 | this->section_header_ = shdrs; | |
318 | this->shstrtab_ = shstrtab; | |
319 | } | |
320 | ||
321 | // Write out the file header. | |
322 | ||
323 | void | |
61ba1cf9 | 324 | Output_file_header::do_write(Output_file* of) |
54dc6425 | 325 | { |
27bc2bce ILT |
326 | gold_assert(this->offset() == 0); |
327 | ||
9025d29d | 328 | if (parameters->get_size() == 32) |
61ba1cf9 | 329 | { |
9025d29d ILT |
330 | if (parameters->is_big_endian()) |
331 | { | |
332 | #ifdef HAVE_TARGET_32_BIG | |
333 | this->do_sized_write<32, true>(of); | |
334 | #else | |
335 | gold_unreachable(); | |
336 | #endif | |
337 | } | |
61ba1cf9 | 338 | else |
9025d29d ILT |
339 | { |
340 | #ifdef HAVE_TARGET_32_LITTLE | |
341 | this->do_sized_write<32, false>(of); | |
342 | #else | |
343 | gold_unreachable(); | |
344 | #endif | |
345 | } | |
61ba1cf9 | 346 | } |
9025d29d | 347 | else if (parameters->get_size() == 64) |
61ba1cf9 | 348 | { |
9025d29d ILT |
349 | if (parameters->is_big_endian()) |
350 | { | |
351 | #ifdef HAVE_TARGET_64_BIG | |
352 | this->do_sized_write<64, true>(of); | |
353 | #else | |
354 | gold_unreachable(); | |
355 | #endif | |
356 | } | |
61ba1cf9 | 357 | else |
9025d29d ILT |
358 | { |
359 | #ifdef HAVE_TARGET_64_LITTLE | |
360 | this->do_sized_write<64, false>(of); | |
361 | #else | |
362 | gold_unreachable(); | |
363 | #endif | |
364 | } | |
61ba1cf9 ILT |
365 | } |
366 | else | |
a3ad94ed | 367 | gold_unreachable(); |
61ba1cf9 ILT |
368 | } |
369 | ||
370 | // Write out the file header with appropriate size and endianess. | |
371 | ||
372 | template<int size, bool big_endian> | |
373 | void | |
374 | Output_file_header::do_sized_write(Output_file* of) | |
375 | { | |
a3ad94ed | 376 | gold_assert(this->offset() == 0); |
61ba1cf9 ILT |
377 | |
378 | int ehdr_size = elfcpp::Elf_sizes<size>::ehdr_size; | |
379 | unsigned char* view = of->get_output_view(0, ehdr_size); | |
380 | elfcpp::Ehdr_write<size, big_endian> oehdr(view); | |
381 | ||
382 | unsigned char e_ident[elfcpp::EI_NIDENT]; | |
383 | memset(e_ident, 0, elfcpp::EI_NIDENT); | |
384 | e_ident[elfcpp::EI_MAG0] = elfcpp::ELFMAG0; | |
385 | e_ident[elfcpp::EI_MAG1] = elfcpp::ELFMAG1; | |
386 | e_ident[elfcpp::EI_MAG2] = elfcpp::ELFMAG2; | |
387 | e_ident[elfcpp::EI_MAG3] = elfcpp::ELFMAG3; | |
388 | if (size == 32) | |
389 | e_ident[elfcpp::EI_CLASS] = elfcpp::ELFCLASS32; | |
390 | else if (size == 64) | |
391 | e_ident[elfcpp::EI_CLASS] = elfcpp::ELFCLASS64; | |
392 | else | |
a3ad94ed | 393 | gold_unreachable(); |
61ba1cf9 ILT |
394 | e_ident[elfcpp::EI_DATA] = (big_endian |
395 | ? elfcpp::ELFDATA2MSB | |
396 | : elfcpp::ELFDATA2LSB); | |
397 | e_ident[elfcpp::EI_VERSION] = elfcpp::EV_CURRENT; | |
398 | // FIXME: Some targets may need to set EI_OSABI and EI_ABIVERSION. | |
399 | oehdr.put_e_ident(e_ident); | |
400 | ||
401 | elfcpp::ET e_type; | |
7e1edb90 | 402 | if (parameters->output_is_object()) |
61ba1cf9 | 403 | e_type = elfcpp::ET_REL; |
436ca963 ILT |
404 | else if (parameters->output_is_shared()) |
405 | e_type = elfcpp::ET_DYN; | |
61ba1cf9 ILT |
406 | else |
407 | e_type = elfcpp::ET_EXEC; | |
408 | oehdr.put_e_type(e_type); | |
409 | ||
410 | oehdr.put_e_machine(this->target_->machine_code()); | |
411 | oehdr.put_e_version(elfcpp::EV_CURRENT); | |
412 | ||
ead1e424 | 413 | // FIXME: Need to support -e, and target specific entry symbol. |
61ba1cf9 ILT |
414 | Symbol* sym = this->symtab_->lookup("_start"); |
415 | typename Sized_symbol<size>::Value_type v; | |
416 | if (sym == NULL) | |
417 | v = 0; | |
418 | else | |
419 | { | |
420 | Sized_symbol<size>* ssym; | |
593f47df | 421 | ssym = this->symtab_->get_sized_symbol SELECT_SIZE_NAME(size) ( |
5482377d | 422 | sym SELECT_SIZE(size)); |
61ba1cf9 ILT |
423 | v = ssym->value(); |
424 | } | |
425 | oehdr.put_e_entry(v); | |
426 | ||
427 | oehdr.put_e_phoff(this->segment_header_->offset()); | |
428 | oehdr.put_e_shoff(this->section_header_->offset()); | |
429 | ||
430 | // FIXME: The target needs to set the flags. | |
431 | oehdr.put_e_flags(0); | |
432 | ||
433 | oehdr.put_e_ehsize(elfcpp::Elf_sizes<size>::ehdr_size); | |
434 | oehdr.put_e_phentsize(elfcpp::Elf_sizes<size>::phdr_size); | |
435 | oehdr.put_e_phnum(this->segment_header_->data_size() | |
436 | / elfcpp::Elf_sizes<size>::phdr_size); | |
437 | oehdr.put_e_shentsize(elfcpp::Elf_sizes<size>::shdr_size); | |
438 | oehdr.put_e_shnum(this->section_header_->data_size() | |
439 | / elfcpp::Elf_sizes<size>::shdr_size); | |
ead1e424 | 440 | oehdr.put_e_shstrndx(this->shstrtab_->out_shndx()); |
61ba1cf9 ILT |
441 | |
442 | of->write_output_view(0, ehdr_size, view); | |
54dc6425 ILT |
443 | } |
444 | ||
dbe717ef ILT |
445 | // Output_data_const methods. |
446 | ||
447 | void | |
a3ad94ed | 448 | Output_data_const::do_write(Output_file* of) |
dbe717ef | 449 | { |
a3ad94ed ILT |
450 | of->write(this->offset(), this->data_.data(), this->data_.size()); |
451 | } | |
452 | ||
453 | // Output_data_const_buffer methods. | |
454 | ||
455 | void | |
456 | Output_data_const_buffer::do_write(Output_file* of) | |
457 | { | |
458 | of->write(this->offset(), this->p_, this->data_size()); | |
dbe717ef ILT |
459 | } |
460 | ||
461 | // Output_section_data methods. | |
462 | ||
16649710 ILT |
463 | // Record the output section, and set the entry size and such. |
464 | ||
465 | void | |
466 | Output_section_data::set_output_section(Output_section* os) | |
467 | { | |
468 | gold_assert(this->output_section_ == NULL); | |
469 | this->output_section_ = os; | |
470 | this->do_adjust_output_section(os); | |
471 | } | |
472 | ||
473 | // Return the section index of the output section. | |
474 | ||
dbe717ef ILT |
475 | unsigned int |
476 | Output_section_data::do_out_shndx() const | |
477 | { | |
a3ad94ed | 478 | gold_assert(this->output_section_ != NULL); |
dbe717ef ILT |
479 | return this->output_section_->out_shndx(); |
480 | } | |
481 | ||
a3ad94ed ILT |
482 | // Output_data_strtab methods. |
483 | ||
27bc2bce | 484 | // Set the final data size. |
a3ad94ed ILT |
485 | |
486 | void | |
27bc2bce | 487 | Output_data_strtab::set_final_data_size() |
a3ad94ed ILT |
488 | { |
489 | this->strtab_->set_string_offsets(); | |
490 | this->set_data_size(this->strtab_->get_strtab_size()); | |
491 | } | |
492 | ||
493 | // Write out a string table. | |
494 | ||
495 | void | |
496 | Output_data_strtab::do_write(Output_file* of) | |
497 | { | |
498 | this->strtab_->write(of, this->offset()); | |
499 | } | |
500 | ||
c06b7b0b ILT |
501 | // Output_reloc methods. |
502 | ||
503 | // Get the symbol index of a relocation. | |
504 | ||
505 | template<bool dynamic, int size, bool big_endian> | |
506 | unsigned int | |
507 | Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::get_symbol_index() | |
508 | const | |
509 | { | |
510 | unsigned int index; | |
511 | switch (this->local_sym_index_) | |
512 | { | |
513 | case INVALID_CODE: | |
a3ad94ed | 514 | gold_unreachable(); |
c06b7b0b ILT |
515 | |
516 | case GSYM_CODE: | |
5a6f7e2d | 517 | if (this->u1_.gsym == NULL) |
c06b7b0b ILT |
518 | index = 0; |
519 | else if (dynamic) | |
5a6f7e2d | 520 | index = this->u1_.gsym->dynsym_index(); |
c06b7b0b | 521 | else |
5a6f7e2d | 522 | index = this->u1_.gsym->symtab_index(); |
c06b7b0b ILT |
523 | break; |
524 | ||
525 | case SECTION_CODE: | |
526 | if (dynamic) | |
5a6f7e2d | 527 | index = this->u1_.os->dynsym_index(); |
c06b7b0b | 528 | else |
5a6f7e2d | 529 | index = this->u1_.os->symtab_index(); |
c06b7b0b ILT |
530 | break; |
531 | ||
436ca963 ILT |
532 | case 0: |
533 | // Relocations without symbols use a symbol index of 0. | |
534 | index = 0; | |
535 | break; | |
536 | ||
c06b7b0b ILT |
537 | default: |
538 | if (dynamic) | |
539 | { | |
540 | // FIXME: It seems that some targets may need to generate | |
541 | // dynamic relocations against local symbols for some | |
542 | // reasons. This will have to be addressed at some point. | |
a3ad94ed | 543 | gold_unreachable(); |
c06b7b0b ILT |
544 | } |
545 | else | |
5a6f7e2d | 546 | index = this->u1_.relobj->symtab_index(this->local_sym_index_); |
c06b7b0b ILT |
547 | break; |
548 | } | |
a3ad94ed | 549 | gold_assert(index != -1U); |
c06b7b0b ILT |
550 | return index; |
551 | } | |
552 | ||
553 | // Write out the offset and info fields of a Rel or Rela relocation | |
554 | // entry. | |
555 | ||
556 | template<bool dynamic, int size, bool big_endian> | |
557 | template<typename Write_rel> | |
558 | void | |
559 | Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::write_rel( | |
560 | Write_rel* wr) const | |
561 | { | |
a3ad94ed | 562 | Address address = this->address_; |
5a6f7e2d ILT |
563 | if (this->shndx_ != INVALID_CODE) |
564 | { | |
565 | off_t off; | |
566 | Output_section* os = this->u2_.relobj->output_section(this->shndx_, | |
567 | &off); | |
568 | gold_assert(os != NULL); | |
730cdc88 ILT |
569 | if (off != -1) |
570 | address += os->address() + off; | |
571 | else | |
572 | { | |
573 | address = os->output_address(this->u2_.relobj, this->shndx_, | |
574 | address); | |
575 | gold_assert(address != -1U); | |
576 | } | |
5a6f7e2d ILT |
577 | } |
578 | else if (this->u2_.od != NULL) | |
579 | address += this->u2_.od->address(); | |
a3ad94ed | 580 | wr->put_r_offset(address); |
c06b7b0b ILT |
581 | wr->put_r_info(elfcpp::elf_r_info<size>(this->get_symbol_index(), |
582 | this->type_)); | |
583 | } | |
584 | ||
585 | // Write out a Rel relocation. | |
586 | ||
587 | template<bool dynamic, int size, bool big_endian> | |
588 | void | |
589 | Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::write( | |
590 | unsigned char* pov) const | |
591 | { | |
592 | elfcpp::Rel_write<size, big_endian> orel(pov); | |
593 | this->write_rel(&orel); | |
594 | } | |
595 | ||
596 | // Write out a Rela relocation. | |
597 | ||
598 | template<bool dynamic, int size, bool big_endian> | |
599 | void | |
600 | Output_reloc<elfcpp::SHT_RELA, dynamic, size, big_endian>::write( | |
601 | unsigned char* pov) const | |
602 | { | |
603 | elfcpp::Rela_write<size, big_endian> orel(pov); | |
604 | this->rel_.write_rel(&orel); | |
605 | orel.put_r_addend(this->addend_); | |
606 | } | |
607 | ||
608 | // Output_data_reloc_base methods. | |
609 | ||
16649710 ILT |
610 | // Adjust the output section. |
611 | ||
612 | template<int sh_type, bool dynamic, int size, bool big_endian> | |
613 | void | |
614 | Output_data_reloc_base<sh_type, dynamic, size, big_endian> | |
615 | ::do_adjust_output_section(Output_section* os) | |
616 | { | |
617 | if (sh_type == elfcpp::SHT_REL) | |
618 | os->set_entsize(elfcpp::Elf_sizes<size>::rel_size); | |
619 | else if (sh_type == elfcpp::SHT_RELA) | |
620 | os->set_entsize(elfcpp::Elf_sizes<size>::rela_size); | |
621 | else | |
622 | gold_unreachable(); | |
623 | if (dynamic) | |
624 | os->set_should_link_to_dynsym(); | |
625 | else | |
626 | os->set_should_link_to_symtab(); | |
627 | } | |
628 | ||
c06b7b0b ILT |
629 | // Write out relocation data. |
630 | ||
631 | template<int sh_type, bool dynamic, int size, bool big_endian> | |
632 | void | |
633 | Output_data_reloc_base<sh_type, dynamic, size, big_endian>::do_write( | |
634 | Output_file* of) | |
635 | { | |
636 | const off_t off = this->offset(); | |
637 | const off_t oview_size = this->data_size(); | |
638 | unsigned char* const oview = of->get_output_view(off, oview_size); | |
639 | ||
640 | unsigned char* pov = oview; | |
641 | for (typename Relocs::const_iterator p = this->relocs_.begin(); | |
642 | p != this->relocs_.end(); | |
643 | ++p) | |
644 | { | |
645 | p->write(pov); | |
646 | pov += reloc_size; | |
647 | } | |
648 | ||
a3ad94ed | 649 | gold_assert(pov - oview == oview_size); |
c06b7b0b ILT |
650 | |
651 | of->write_output_view(off, oview_size, oview); | |
652 | ||
653 | // We no longer need the relocation entries. | |
654 | this->relocs_.clear(); | |
655 | } | |
656 | ||
dbe717ef | 657 | // Output_data_got::Got_entry methods. |
ead1e424 ILT |
658 | |
659 | // Write out the entry. | |
660 | ||
661 | template<int size, bool big_endian> | |
662 | void | |
7e1edb90 | 663 | Output_data_got<size, big_endian>::Got_entry::write(unsigned char* pov) const |
ead1e424 ILT |
664 | { |
665 | Valtype val = 0; | |
666 | ||
667 | switch (this->local_sym_index_) | |
668 | { | |
669 | case GSYM_CODE: | |
670 | { | |
671 | Symbol* gsym = this->u_.gsym; | |
672 | ||
673 | // If the symbol is resolved locally, we need to write out its | |
674 | // value. Otherwise we just write zero. The target code is | |
675 | // responsible for creating a relocation entry to fill in the | |
d61c6bd4 ILT |
676 | // value at runtime. For non-preemptible symbols in a shared |
677 | // library, the target will need to record whether or not the | |
678 | // value should be written (e.g., it may use a RELATIVE | |
679 | // relocation type). | |
680 | if (gsym->final_value_is_known() || gsym->needs_value_in_got()) | |
ead1e424 ILT |
681 | { |
682 | Sized_symbol<size>* sgsym; | |
683 | // This cast is a bit ugly. We don't want to put a | |
684 | // virtual method in Symbol, because we want Symbol to be | |
685 | // as small as possible. | |
686 | sgsym = static_cast<Sized_symbol<size>*>(gsym); | |
687 | val = sgsym->value(); | |
688 | } | |
689 | } | |
690 | break; | |
691 | ||
692 | case CONSTANT_CODE: | |
693 | val = this->u_.constant; | |
694 | break; | |
695 | ||
696 | default: | |
e727fa71 ILT |
697 | val = this->u_.object->local_symbol_value(this->local_sym_index_); |
698 | break; | |
ead1e424 ILT |
699 | } |
700 | ||
a3ad94ed | 701 | elfcpp::Swap<size, big_endian>::writeval(pov, val); |
ead1e424 ILT |
702 | } |
703 | ||
dbe717ef | 704 | // Output_data_got methods. |
ead1e424 | 705 | |
dbe717ef ILT |
706 | // Add an entry for a global symbol to the GOT. This returns true if |
707 | // this is a new GOT entry, false if the symbol already had a GOT | |
708 | // entry. | |
709 | ||
710 | template<int size, bool big_endian> | |
711 | bool | |
712 | Output_data_got<size, big_endian>::add_global(Symbol* gsym) | |
ead1e424 | 713 | { |
dbe717ef ILT |
714 | if (gsym->has_got_offset()) |
715 | return false; | |
ead1e424 | 716 | |
dbe717ef ILT |
717 | this->entries_.push_back(Got_entry(gsym)); |
718 | this->set_got_size(); | |
719 | gsym->set_got_offset(this->last_got_offset()); | |
720 | return true; | |
721 | } | |
ead1e424 | 722 | |
e727fa71 ILT |
723 | // Add an entry for a local symbol to the GOT. This returns true if |
724 | // this is a new GOT entry, false if the symbol already has a GOT | |
725 | // entry. | |
726 | ||
727 | template<int size, bool big_endian> | |
728 | bool | |
729 | Output_data_got<size, big_endian>::add_local( | |
730 | Sized_relobj<size, big_endian>* object, | |
731 | unsigned int symndx) | |
732 | { | |
733 | if (object->local_has_got_offset(symndx)) | |
734 | return false; | |
07f397ab | 735 | |
e727fa71 ILT |
736 | this->entries_.push_back(Got_entry(object, symndx)); |
737 | this->set_got_size(); | |
738 | object->set_local_got_offset(symndx, this->last_got_offset()); | |
739 | return true; | |
740 | } | |
741 | ||
07f397ab ILT |
742 | // Add an entry (or a pair of entries) for a global TLS symbol to the GOT. |
743 | // In a pair of entries, the first value in the pair will be used for the | |
744 | // module index, and the second value will be used for the dtv-relative | |
745 | // offset. This returns true if this is a new GOT entry, false if the symbol | |
746 | // already has a GOT entry. | |
747 | ||
748 | template<int size, bool big_endian> | |
749 | bool | |
750 | Output_data_got<size, big_endian>::add_global_tls(Symbol* gsym, | |
751 | bool need_pair) | |
752 | { | |
753 | if (gsym->has_tls_got_offset(need_pair)) | |
754 | return false; | |
755 | ||
756 | this->entries_.push_back(Got_entry(gsym)); | |
757 | gsym->set_tls_got_offset(this->last_got_offset(), need_pair); | |
758 | if (need_pair) | |
759 | this->entries_.push_back(Got_entry(gsym)); | |
760 | this->set_got_size(); | |
761 | return true; | |
762 | } | |
763 | ||
764 | // Add an entry (or a pair of entries) for a local TLS symbol to the GOT. | |
765 | // In a pair of entries, the first value in the pair will be used for the | |
766 | // module index, and the second value will be used for the dtv-relative | |
767 | // offset. This returns true if this is a new GOT entry, false if the symbol | |
768 | // already has a GOT entry. | |
769 | ||
770 | template<int size, bool big_endian> | |
771 | bool | |
772 | Output_data_got<size, big_endian>::add_local_tls( | |
773 | Sized_relobj<size, big_endian>* object, | |
774 | unsigned int symndx, | |
775 | bool need_pair) | |
776 | { | |
777 | if (object->local_has_tls_got_offset(symndx, need_pair)) | |
778 | return false; | |
779 | ||
780 | this->entries_.push_back(Got_entry(object, symndx)); | |
781 | object->set_local_tls_got_offset(symndx, this->last_got_offset(), need_pair); | |
782 | if (need_pair) | |
783 | this->entries_.push_back(Got_entry(object, symndx)); | |
784 | this->set_got_size(); | |
785 | return true; | |
786 | } | |
787 | ||
ead1e424 ILT |
788 | // Write out the GOT. |
789 | ||
790 | template<int size, bool big_endian> | |
791 | void | |
dbe717ef | 792 | Output_data_got<size, big_endian>::do_write(Output_file* of) |
ead1e424 ILT |
793 | { |
794 | const int add = size / 8; | |
795 | ||
796 | const off_t off = this->offset(); | |
c06b7b0b | 797 | const off_t oview_size = this->data_size(); |
ead1e424 ILT |
798 | unsigned char* const oview = of->get_output_view(off, oview_size); |
799 | ||
800 | unsigned char* pov = oview; | |
801 | for (typename Got_entries::const_iterator p = this->entries_.begin(); | |
802 | p != this->entries_.end(); | |
803 | ++p) | |
804 | { | |
7e1edb90 | 805 | p->write(pov); |
ead1e424 ILT |
806 | pov += add; |
807 | } | |
808 | ||
a3ad94ed | 809 | gold_assert(pov - oview == oview_size); |
c06b7b0b | 810 | |
ead1e424 ILT |
811 | of->write_output_view(off, oview_size, oview); |
812 | ||
813 | // We no longer need the GOT entries. | |
814 | this->entries_.clear(); | |
815 | } | |
816 | ||
a3ad94ed ILT |
817 | // Output_data_dynamic::Dynamic_entry methods. |
818 | ||
819 | // Write out the entry. | |
820 | ||
821 | template<int size, bool big_endian> | |
822 | void | |
823 | Output_data_dynamic::Dynamic_entry::write( | |
824 | unsigned char* pov, | |
1ddbd1e6 ILT |
825 | const Stringpool* pool |
826 | ACCEPT_SIZE_ENDIAN) const | |
a3ad94ed ILT |
827 | { |
828 | typename elfcpp::Elf_types<size>::Elf_WXword val; | |
829 | switch (this->classification_) | |
830 | { | |
831 | case DYNAMIC_NUMBER: | |
832 | val = this->u_.val; | |
833 | break; | |
834 | ||
835 | case DYNAMIC_SECTION_ADDRESS: | |
16649710 | 836 | val = this->u_.od->address(); |
a3ad94ed ILT |
837 | break; |
838 | ||
839 | case DYNAMIC_SECTION_SIZE: | |
16649710 | 840 | val = this->u_.od->data_size(); |
a3ad94ed ILT |
841 | break; |
842 | ||
843 | case DYNAMIC_SYMBOL: | |
844 | { | |
16649710 ILT |
845 | const Sized_symbol<size>* s = |
846 | static_cast<const Sized_symbol<size>*>(this->u_.sym); | |
a3ad94ed ILT |
847 | val = s->value(); |
848 | } | |
849 | break; | |
850 | ||
851 | case DYNAMIC_STRING: | |
852 | val = pool->get_offset(this->u_.str); | |
853 | break; | |
854 | ||
855 | default: | |
856 | gold_unreachable(); | |
857 | } | |
858 | ||
859 | elfcpp::Dyn_write<size, big_endian> dw(pov); | |
860 | dw.put_d_tag(this->tag_); | |
861 | dw.put_d_val(val); | |
862 | } | |
863 | ||
864 | // Output_data_dynamic methods. | |
865 | ||
16649710 ILT |
866 | // Adjust the output section to set the entry size. |
867 | ||
868 | void | |
869 | Output_data_dynamic::do_adjust_output_section(Output_section* os) | |
870 | { | |
9025d29d | 871 | if (parameters->get_size() == 32) |
16649710 | 872 | os->set_entsize(elfcpp::Elf_sizes<32>::dyn_size); |
9025d29d | 873 | else if (parameters->get_size() == 64) |
16649710 ILT |
874 | os->set_entsize(elfcpp::Elf_sizes<64>::dyn_size); |
875 | else | |
876 | gold_unreachable(); | |
877 | } | |
878 | ||
a3ad94ed ILT |
879 | // Set the final data size. |
880 | ||
881 | void | |
27bc2bce | 882 | Output_data_dynamic::set_final_data_size() |
a3ad94ed ILT |
883 | { |
884 | // Add the terminating entry. | |
885 | this->add_constant(elfcpp::DT_NULL, 0); | |
886 | ||
887 | int dyn_size; | |
9025d29d | 888 | if (parameters->get_size() == 32) |
a3ad94ed | 889 | dyn_size = elfcpp::Elf_sizes<32>::dyn_size; |
9025d29d | 890 | else if (parameters->get_size() == 64) |
a3ad94ed ILT |
891 | dyn_size = elfcpp::Elf_sizes<64>::dyn_size; |
892 | else | |
893 | gold_unreachable(); | |
894 | this->set_data_size(this->entries_.size() * dyn_size); | |
895 | } | |
896 | ||
897 | // Write out the dynamic entries. | |
898 | ||
899 | void | |
900 | Output_data_dynamic::do_write(Output_file* of) | |
901 | { | |
9025d29d | 902 | if (parameters->get_size() == 32) |
a3ad94ed | 903 | { |
9025d29d ILT |
904 | if (parameters->is_big_endian()) |
905 | { | |
906 | #ifdef HAVE_TARGET_32_BIG | |
907 | this->sized_write<32, true>(of); | |
908 | #else | |
909 | gold_unreachable(); | |
910 | #endif | |
911 | } | |
a3ad94ed | 912 | else |
9025d29d ILT |
913 | { |
914 | #ifdef HAVE_TARGET_32_LITTLE | |
915 | this->sized_write<32, false>(of); | |
916 | #else | |
917 | gold_unreachable(); | |
918 | #endif | |
919 | } | |
a3ad94ed | 920 | } |
9025d29d | 921 | else if (parameters->get_size() == 64) |
a3ad94ed | 922 | { |
9025d29d ILT |
923 | if (parameters->is_big_endian()) |
924 | { | |
925 | #ifdef HAVE_TARGET_64_BIG | |
926 | this->sized_write<64, true>(of); | |
927 | #else | |
928 | gold_unreachable(); | |
929 | #endif | |
930 | } | |
a3ad94ed | 931 | else |
9025d29d ILT |
932 | { |
933 | #ifdef HAVE_TARGET_64_LITTLE | |
934 | this->sized_write<64, false>(of); | |
935 | #else | |
936 | gold_unreachable(); | |
937 | #endif | |
938 | } | |
a3ad94ed ILT |
939 | } |
940 | else | |
941 | gold_unreachable(); | |
942 | } | |
943 | ||
944 | template<int size, bool big_endian> | |
945 | void | |
946 | Output_data_dynamic::sized_write(Output_file* of) | |
947 | { | |
948 | const int dyn_size = elfcpp::Elf_sizes<size>::dyn_size; | |
949 | ||
950 | const off_t offset = this->offset(); | |
951 | const off_t oview_size = this->data_size(); | |
952 | unsigned char* const oview = of->get_output_view(offset, oview_size); | |
953 | ||
954 | unsigned char* pov = oview; | |
955 | for (typename Dynamic_entries::const_iterator p = this->entries_.begin(); | |
956 | p != this->entries_.end(); | |
957 | ++p) | |
958 | { | |
1ddbd1e6 ILT |
959 | p->write SELECT_SIZE_ENDIAN_NAME(size, big_endian)( |
960 | pov, this->pool_ SELECT_SIZE_ENDIAN(size, big_endian)); | |
a3ad94ed ILT |
961 | pov += dyn_size; |
962 | } | |
963 | ||
964 | gold_assert(pov - oview == oview_size); | |
965 | ||
966 | of->write_output_view(offset, oview_size, oview); | |
967 | ||
968 | // We no longer need the dynamic entries. | |
969 | this->entries_.clear(); | |
970 | } | |
971 | ||
ead1e424 ILT |
972 | // Output_section::Input_section methods. |
973 | ||
974 | // Return the data size. For an input section we store the size here. | |
975 | // For an Output_section_data, we have to ask it for the size. | |
976 | ||
977 | off_t | |
978 | Output_section::Input_section::data_size() const | |
979 | { | |
980 | if (this->is_input_section()) | |
b8e6aad9 | 981 | return this->u1_.data_size; |
ead1e424 | 982 | else |
b8e6aad9 | 983 | return this->u2_.posd->data_size(); |
ead1e424 ILT |
984 | } |
985 | ||
986 | // Set the address and file offset. | |
987 | ||
988 | void | |
96803768 ILT |
989 | Output_section::Input_section::set_address_and_file_offset( |
990 | uint64_t address, | |
991 | off_t file_offset, | |
992 | off_t section_file_offset) | |
ead1e424 ILT |
993 | { |
994 | if (this->is_input_section()) | |
96803768 ILT |
995 | this->u2_.object->set_section_offset(this->shndx_, |
996 | file_offset - section_file_offset); | |
ead1e424 | 997 | else |
96803768 ILT |
998 | this->u2_.posd->set_address_and_file_offset(address, file_offset); |
999 | } | |
1000 | ||
1001 | // Finalize the data size. | |
1002 | ||
1003 | void | |
1004 | Output_section::Input_section::finalize_data_size() | |
1005 | { | |
1006 | if (!this->is_input_section()) | |
1007 | this->u2_.posd->finalize_data_size(); | |
b8e6aad9 ILT |
1008 | } |
1009 | ||
730cdc88 | 1010 | // Try to turn an input offset into an output offset. |
b8e6aad9 ILT |
1011 | |
1012 | bool | |
730cdc88 ILT |
1013 | Output_section::Input_section::output_offset(const Relobj* object, |
1014 | unsigned int shndx, | |
1015 | off_t offset, | |
1016 | off_t *poutput) const | |
b8e6aad9 ILT |
1017 | { |
1018 | if (!this->is_input_section()) | |
730cdc88 | 1019 | return this->u2_.posd->output_offset(object, shndx, offset, poutput); |
b8e6aad9 ILT |
1020 | else |
1021 | { | |
730cdc88 | 1022 | if (this->shndx_ != shndx || this->u2_.object != object) |
b8e6aad9 ILT |
1023 | return false; |
1024 | off_t output_offset; | |
1025 | Output_section* os = object->output_section(shndx, &output_offset); | |
1026 | gold_assert(os != NULL); | |
730cdc88 ILT |
1027 | gold_assert(output_offset != -1); |
1028 | *poutput = output_offset + offset; | |
b8e6aad9 ILT |
1029 | return true; |
1030 | } | |
ead1e424 ILT |
1031 | } |
1032 | ||
1033 | // Write out the data. We don't have to do anything for an input | |
1034 | // section--they are handled via Object::relocate--but this is where | |
1035 | // we write out the data for an Output_section_data. | |
1036 | ||
1037 | void | |
1038 | Output_section::Input_section::write(Output_file* of) | |
1039 | { | |
1040 | if (!this->is_input_section()) | |
b8e6aad9 | 1041 | this->u2_.posd->write(of); |
ead1e424 ILT |
1042 | } |
1043 | ||
96803768 ILT |
1044 | // Write the data to a buffer. As for write(), we don't have to do |
1045 | // anything for an input section. | |
1046 | ||
1047 | void | |
1048 | Output_section::Input_section::write_to_buffer(unsigned char* buffer) | |
1049 | { | |
1050 | if (!this->is_input_section()) | |
1051 | this->u2_.posd->write_to_buffer(buffer); | |
1052 | } | |
1053 | ||
a2fb1b05 ILT |
1054 | // Output_section methods. |
1055 | ||
1056 | // Construct an Output_section. NAME will point into a Stringpool. | |
1057 | ||
96803768 | 1058 | Output_section::Output_section(const char* name, elfcpp::Elf_Word type, |
b8e6aad9 | 1059 | elfcpp::Elf_Xword flags) |
96803768 | 1060 | : name_(name), |
a2fb1b05 ILT |
1061 | addralign_(0), |
1062 | entsize_(0), | |
16649710 | 1063 | link_section_(NULL), |
a2fb1b05 | 1064 | link_(0), |
16649710 | 1065 | info_section_(NULL), |
a2fb1b05 ILT |
1066 | info_(0), |
1067 | type_(type), | |
61ba1cf9 | 1068 | flags_(flags), |
91ea499d | 1069 | out_shndx_(-1U), |
c06b7b0b ILT |
1070 | symtab_index_(0), |
1071 | dynsym_index_(0), | |
ead1e424 ILT |
1072 | input_sections_(), |
1073 | first_input_offset_(0), | |
c51e6221 | 1074 | fills_(), |
96803768 | 1075 | postprocessing_buffer_(NULL), |
a3ad94ed | 1076 | needs_symtab_index_(false), |
16649710 ILT |
1077 | needs_dynsym_index_(false), |
1078 | should_link_to_symtab_(false), | |
730cdc88 | 1079 | should_link_to_dynsym_(false), |
27bc2bce ILT |
1080 | after_input_sections_(false), |
1081 | requires_postprocessing_(false) | |
a2fb1b05 | 1082 | { |
27bc2bce ILT |
1083 | // An unallocated section has no address. Forcing this means that |
1084 | // we don't need special treatment for symbols defined in debug | |
1085 | // sections. | |
1086 | if ((flags & elfcpp::SHF_ALLOC) == 0) | |
1087 | this->set_address(0); | |
a2fb1b05 ILT |
1088 | } |
1089 | ||
54dc6425 ILT |
1090 | Output_section::~Output_section() |
1091 | { | |
1092 | } | |
1093 | ||
16649710 ILT |
1094 | // Set the entry size. |
1095 | ||
1096 | void | |
1097 | Output_section::set_entsize(uint64_t v) | |
1098 | { | |
1099 | if (this->entsize_ == 0) | |
1100 | this->entsize_ = v; | |
1101 | else | |
1102 | gold_assert(this->entsize_ == v); | |
1103 | } | |
1104 | ||
ead1e424 | 1105 | // Add the input section SHNDX, with header SHDR, named SECNAME, in |
730cdc88 ILT |
1106 | // OBJECT, to the Output_section. RELOC_SHNDX is the index of a |
1107 | // relocation section which applies to this section, or 0 if none, or | |
1108 | // -1U if more than one. Return the offset of the input section | |
1109 | // within the output section. Return -1 if the input section will | |
1110 | // receive special handling. In the normal case we don't always keep | |
1111 | // track of input sections for an Output_section. Instead, each | |
1112 | // Object keeps track of the Output_section for each of its input | |
1113 | // sections. | |
a2fb1b05 ILT |
1114 | |
1115 | template<int size, bool big_endian> | |
1116 | off_t | |
730cdc88 ILT |
1117 | Output_section::add_input_section(Sized_relobj<size, big_endian>* object, |
1118 | unsigned int shndx, | |
ead1e424 | 1119 | const char* secname, |
730cdc88 ILT |
1120 | const elfcpp::Shdr<size, big_endian>& shdr, |
1121 | unsigned int reloc_shndx) | |
a2fb1b05 ILT |
1122 | { |
1123 | elfcpp::Elf_Xword addralign = shdr.get_sh_addralign(); | |
1124 | if ((addralign & (addralign - 1)) != 0) | |
1125 | { | |
75f2446e ILT |
1126 | object->error(_("invalid alignment %lu for section \"%s\""), |
1127 | static_cast<unsigned long>(addralign), secname); | |
1128 | addralign = 1; | |
a2fb1b05 | 1129 | } |
a2fb1b05 ILT |
1130 | |
1131 | if (addralign > this->addralign_) | |
1132 | this->addralign_ = addralign; | |
1133 | ||
44a43cf9 | 1134 | typename elfcpp::Elf_types<size>::Elf_WXword sh_flags = shdr.get_sh_flags(); |
4f833eee | 1135 | uint64_t entsize = shdr.get_sh_entsize(); |
44a43cf9 ILT |
1136 | |
1137 | // .debug_str is a mergeable string section, but is not always so | |
1138 | // marked by compilers. Mark manually here so we can optimize. | |
1139 | if (strcmp(secname, ".debug_str") == 0) | |
4f833eee ILT |
1140 | { |
1141 | sh_flags |= (elfcpp::SHF_MERGE | elfcpp::SHF_STRINGS); | |
1142 | entsize = 1; | |
1143 | } | |
44a43cf9 | 1144 | |
b8e6aad9 | 1145 | // If this is a SHF_MERGE section, we pass all the input sections to |
730cdc88 ILT |
1146 | // a Output_data_merge. We don't try to handle relocations for such |
1147 | // a section. | |
44a43cf9 | 1148 | if ((sh_flags & elfcpp::SHF_MERGE) != 0 |
730cdc88 | 1149 | && reloc_shndx == 0) |
b8e6aad9 | 1150 | { |
44a43cf9 | 1151 | if (this->add_merge_input_section(object, shndx, sh_flags, |
96803768 | 1152 | entsize, addralign)) |
b8e6aad9 ILT |
1153 | { |
1154 | // Tell the relocation routines that they need to call the | |
730cdc88 | 1155 | // output_offset method to determine the final address. |
b8e6aad9 ILT |
1156 | return -1; |
1157 | } | |
1158 | } | |
1159 | ||
27bc2bce | 1160 | off_t offset_in_section = this->current_data_size_for_child(); |
c51e6221 ILT |
1161 | off_t aligned_offset_in_section = align_address(offset_in_section, |
1162 | addralign); | |
1163 | ||
1164 | if (aligned_offset_in_section > offset_in_section | |
44a43cf9 | 1165 | && (sh_flags & elfcpp::SHF_EXECINSTR) != 0 |
c51e6221 ILT |
1166 | && object->target()->has_code_fill()) |
1167 | { | |
1168 | // We need to add some fill data. Using fill_list_ when | |
1169 | // possible is an optimization, since we will often have fill | |
1170 | // sections without input sections. | |
1171 | off_t fill_len = aligned_offset_in_section - offset_in_section; | |
1172 | if (this->input_sections_.empty()) | |
1173 | this->fills_.push_back(Fill(offset_in_section, fill_len)); | |
1174 | else | |
1175 | { | |
1176 | // FIXME: When relaxing, the size needs to adjust to | |
1177 | // maintain a constant alignment. | |
1178 | std::string fill_data(object->target()->code_fill(fill_len)); | |
1179 | Output_data_const* odc = new Output_data_const(fill_data, 1); | |
1180 | this->input_sections_.push_back(Input_section(odc)); | |
1181 | } | |
1182 | } | |
1183 | ||
27bc2bce ILT |
1184 | this->set_current_data_size_for_child(aligned_offset_in_section |
1185 | + shdr.get_sh_size()); | |
a2fb1b05 | 1186 | |
ead1e424 ILT |
1187 | // We need to keep track of this section if we are already keeping |
1188 | // track of sections, or if we are relaxing. FIXME: Add test for | |
1189 | // relaxing. | |
c51e6221 | 1190 | if (!this->input_sections_.empty()) |
ead1e424 ILT |
1191 | this->input_sections_.push_back(Input_section(object, shndx, |
1192 | shdr.get_sh_size(), | |
1193 | addralign)); | |
54dc6425 | 1194 | |
c51e6221 | 1195 | return aligned_offset_in_section; |
61ba1cf9 ILT |
1196 | } |
1197 | ||
ead1e424 ILT |
1198 | // Add arbitrary data to an output section. |
1199 | ||
1200 | void | |
1201 | Output_section::add_output_section_data(Output_section_data* posd) | |
1202 | { | |
b8e6aad9 ILT |
1203 | Input_section inp(posd); |
1204 | this->add_output_section_data(&inp); | |
1205 | } | |
1206 | ||
1207 | // Add arbitrary data to an output section by Input_section. | |
c06b7b0b | 1208 | |
b8e6aad9 ILT |
1209 | void |
1210 | Output_section::add_output_section_data(Input_section* inp) | |
1211 | { | |
ead1e424 | 1212 | if (this->input_sections_.empty()) |
27bc2bce | 1213 | this->first_input_offset_ = this->current_data_size_for_child(); |
c06b7b0b | 1214 | |
b8e6aad9 | 1215 | this->input_sections_.push_back(*inp); |
c06b7b0b | 1216 | |
b8e6aad9 | 1217 | uint64_t addralign = inp->addralign(); |
ead1e424 ILT |
1218 | if (addralign > this->addralign_) |
1219 | this->addralign_ = addralign; | |
c06b7b0b | 1220 | |
b8e6aad9 ILT |
1221 | inp->set_output_section(this); |
1222 | } | |
1223 | ||
1224 | // Add a merge section to an output section. | |
1225 | ||
1226 | void | |
1227 | Output_section::add_output_merge_section(Output_section_data* posd, | |
1228 | bool is_string, uint64_t entsize) | |
1229 | { | |
1230 | Input_section inp(posd, is_string, entsize); | |
1231 | this->add_output_section_data(&inp); | |
1232 | } | |
1233 | ||
1234 | // Add an input section to a SHF_MERGE section. | |
1235 | ||
1236 | bool | |
1237 | Output_section::add_merge_input_section(Relobj* object, unsigned int shndx, | |
1238 | uint64_t flags, uint64_t entsize, | |
96803768 | 1239 | uint64_t addralign) |
b8e6aad9 | 1240 | { |
87f95776 ILT |
1241 | bool is_string = (flags & elfcpp::SHF_STRINGS) != 0; |
1242 | ||
1243 | // We only merge strings if the alignment is not more than the | |
1244 | // character size. This could be handled, but it's unusual. | |
1245 | if (is_string && addralign > entsize) | |
b8e6aad9 ILT |
1246 | return false; |
1247 | ||
b8e6aad9 ILT |
1248 | Input_section_list::iterator p; |
1249 | for (p = this->input_sections_.begin(); | |
1250 | p != this->input_sections_.end(); | |
1251 | ++p) | |
87f95776 | 1252 | if (p->is_merge_section(is_string, entsize, addralign)) |
9a0910c3 ILT |
1253 | { |
1254 | p->add_input_section(object, shndx); | |
1255 | return true; | |
1256 | } | |
b8e6aad9 ILT |
1257 | |
1258 | // We handle the actual constant merging in Output_merge_data or | |
1259 | // Output_merge_string_data. | |
9a0910c3 ILT |
1260 | Output_section_data* posd; |
1261 | if (!is_string) | |
1262 | posd = new Output_merge_data(entsize, addralign); | |
b8e6aad9 ILT |
1263 | else |
1264 | { | |
9a0910c3 ILT |
1265 | switch (entsize) |
1266 | { | |
1267 | case 1: | |
1268 | posd = new Output_merge_string<char>(addralign); | |
1269 | break; | |
1270 | case 2: | |
1271 | posd = new Output_merge_string<uint16_t>(addralign); | |
1272 | break; | |
1273 | case 4: | |
1274 | posd = new Output_merge_string<uint32_t>(addralign); | |
1275 | break; | |
1276 | default: | |
1277 | return false; | |
1278 | } | |
b8e6aad9 ILT |
1279 | } |
1280 | ||
9a0910c3 ILT |
1281 | this->add_output_merge_section(posd, is_string, entsize); |
1282 | posd->add_input_section(object, shndx); | |
1283 | ||
b8e6aad9 ILT |
1284 | return true; |
1285 | } | |
1286 | ||
730cdc88 ILT |
1287 | // Given an address OFFSET relative to the start of input section |
1288 | // SHNDX in OBJECT, return whether this address is being included in | |
1289 | // the final link. This should only be called if SHNDX in OBJECT has | |
1290 | // a special mapping. | |
1291 | ||
1292 | bool | |
1293 | Output_section::is_input_address_mapped(const Relobj* object, | |
1294 | unsigned int shndx, | |
1295 | off_t offset) const | |
1296 | { | |
1297 | gold_assert(object->is_section_specially_mapped(shndx)); | |
1298 | ||
1299 | for (Input_section_list::const_iterator p = this->input_sections_.begin(); | |
1300 | p != this->input_sections_.end(); | |
1301 | ++p) | |
1302 | { | |
1303 | off_t output_offset; | |
1304 | if (p->output_offset(object, shndx, offset, &output_offset)) | |
1305 | return output_offset != -1; | |
1306 | } | |
1307 | ||
1308 | // By default we assume that the address is mapped. This should | |
1309 | // only be called after we have passed all sections to Layout. At | |
1310 | // that point we should know what we are discarding. | |
1311 | return true; | |
1312 | } | |
1313 | ||
1314 | // Given an address OFFSET relative to the start of input section | |
1315 | // SHNDX in object OBJECT, return the output offset relative to the | |
1316 | // start of the section. This should only be called if SHNDX in | |
1317 | // OBJECT has a special mapping. | |
1318 | ||
1319 | off_t | |
1320 | Output_section::output_offset(const Relobj* object, unsigned int shndx, | |
1321 | off_t offset) const | |
1322 | { | |
1323 | gold_assert(object->is_section_specially_mapped(shndx)); | |
1324 | // This can only be called meaningfully when layout is complete. | |
1325 | gold_assert(Output_data::is_layout_complete()); | |
1326 | ||
1327 | for (Input_section_list::const_iterator p = this->input_sections_.begin(); | |
1328 | p != this->input_sections_.end(); | |
1329 | ++p) | |
1330 | { | |
1331 | off_t output_offset; | |
1332 | if (p->output_offset(object, shndx, offset, &output_offset)) | |
1333 | return output_offset; | |
1334 | } | |
1335 | gold_unreachable(); | |
1336 | } | |
1337 | ||
b8e6aad9 ILT |
1338 | // Return the output virtual address of OFFSET relative to the start |
1339 | // of input section SHNDX in object OBJECT. | |
1340 | ||
1341 | uint64_t | |
1342 | Output_section::output_address(const Relobj* object, unsigned int shndx, | |
1343 | off_t offset) const | |
1344 | { | |
730cdc88 ILT |
1345 | gold_assert(object->is_section_specially_mapped(shndx)); |
1346 | // This can only be called meaningfully when layout is complete. | |
1347 | gold_assert(Output_data::is_layout_complete()); | |
1348 | ||
b8e6aad9 ILT |
1349 | uint64_t addr = this->address() + this->first_input_offset_; |
1350 | for (Input_section_list::const_iterator p = this->input_sections_.begin(); | |
1351 | p != this->input_sections_.end(); | |
1352 | ++p) | |
1353 | { | |
1354 | addr = align_address(addr, p->addralign()); | |
730cdc88 ILT |
1355 | off_t output_offset; |
1356 | if (p->output_offset(object, shndx, offset, &output_offset)) | |
1357 | { | |
1358 | if (output_offset == -1) | |
1359 | return -1U; | |
1360 | return addr + output_offset; | |
1361 | } | |
b8e6aad9 ILT |
1362 | addr += p->data_size(); |
1363 | } | |
1364 | ||
1365 | // If we get here, it means that we don't know the mapping for this | |
1366 | // input section. This might happen in principle if | |
1367 | // add_input_section were called before add_output_section_data. | |
1368 | // But it should never actually happen. | |
1369 | ||
1370 | gold_unreachable(); | |
ead1e424 ILT |
1371 | } |
1372 | ||
27bc2bce | 1373 | // Set the data size of an Output_section. This is where we handle |
ead1e424 ILT |
1374 | // setting the addresses of any Output_section_data objects. |
1375 | ||
1376 | void | |
27bc2bce | 1377 | Output_section::set_final_data_size() |
ead1e424 ILT |
1378 | { |
1379 | if (this->input_sections_.empty()) | |
27bc2bce ILT |
1380 | { |
1381 | this->set_data_size(this->current_data_size_for_child()); | |
1382 | return; | |
1383 | } | |
ead1e424 | 1384 | |
27bc2bce ILT |
1385 | uint64_t address = this->address(); |
1386 | off_t startoff = this->offset(); | |
ead1e424 ILT |
1387 | off_t off = startoff + this->first_input_offset_; |
1388 | for (Input_section_list::iterator p = this->input_sections_.begin(); | |
1389 | p != this->input_sections_.end(); | |
1390 | ++p) | |
1391 | { | |
1392 | off = align_address(off, p->addralign()); | |
96803768 ILT |
1393 | p->set_address_and_file_offset(address + (off - startoff), off, |
1394 | startoff); | |
ead1e424 ILT |
1395 | off += p->data_size(); |
1396 | } | |
1397 | ||
1398 | this->set_data_size(off - startoff); | |
1399 | } | |
9a0910c3 | 1400 | |
61ba1cf9 ILT |
1401 | // Write the section header to *OSHDR. |
1402 | ||
1403 | template<int size, bool big_endian> | |
1404 | void | |
16649710 ILT |
1405 | Output_section::write_header(const Layout* layout, |
1406 | const Stringpool* secnamepool, | |
61ba1cf9 ILT |
1407 | elfcpp::Shdr_write<size, big_endian>* oshdr) const |
1408 | { | |
1409 | oshdr->put_sh_name(secnamepool->get_offset(this->name_)); | |
1410 | oshdr->put_sh_type(this->type_); | |
1411 | oshdr->put_sh_flags(this->flags_); | |
1412 | oshdr->put_sh_addr(this->address()); | |
1413 | oshdr->put_sh_offset(this->offset()); | |
1414 | oshdr->put_sh_size(this->data_size()); | |
16649710 ILT |
1415 | if (this->link_section_ != NULL) |
1416 | oshdr->put_sh_link(this->link_section_->out_shndx()); | |
1417 | else if (this->should_link_to_symtab_) | |
1418 | oshdr->put_sh_link(layout->symtab_section()->out_shndx()); | |
1419 | else if (this->should_link_to_dynsym_) | |
1420 | oshdr->put_sh_link(layout->dynsym_section()->out_shndx()); | |
1421 | else | |
1422 | oshdr->put_sh_link(this->link_); | |
1423 | if (this->info_section_ != NULL) | |
1424 | oshdr->put_sh_info(this->info_section_->out_shndx()); | |
1425 | else | |
1426 | oshdr->put_sh_info(this->info_); | |
61ba1cf9 ILT |
1427 | oshdr->put_sh_addralign(this->addralign_); |
1428 | oshdr->put_sh_entsize(this->entsize_); | |
a2fb1b05 ILT |
1429 | } |
1430 | ||
ead1e424 ILT |
1431 | // Write out the data. For input sections the data is written out by |
1432 | // Object::relocate, but we have to handle Output_section_data objects | |
1433 | // here. | |
1434 | ||
1435 | void | |
1436 | Output_section::do_write(Output_file* of) | |
1437 | { | |
96803768 ILT |
1438 | gold_assert(!this->requires_postprocessing()); |
1439 | ||
c51e6221 ILT |
1440 | off_t output_section_file_offset = this->offset(); |
1441 | for (Fill_list::iterator p = this->fills_.begin(); | |
1442 | p != this->fills_.end(); | |
1443 | ++p) | |
1444 | { | |
1445 | std::string fill_data(of->target()->code_fill(p->length())); | |
1446 | of->write(output_section_file_offset + p->section_offset(), | |
1447 | fill_data.data(), fill_data.size()); | |
1448 | } | |
1449 | ||
ead1e424 ILT |
1450 | for (Input_section_list::iterator p = this->input_sections_.begin(); |
1451 | p != this->input_sections_.end(); | |
1452 | ++p) | |
1453 | p->write(of); | |
1454 | } | |
1455 | ||
96803768 ILT |
1456 | // If a section requires postprocessing, create the buffer to use. |
1457 | ||
1458 | void | |
1459 | Output_section::create_postprocessing_buffer() | |
1460 | { | |
1461 | gold_assert(this->requires_postprocessing()); | |
1462 | gold_assert(this->postprocessing_buffer_ == NULL); | |
1463 | ||
1464 | if (!this->input_sections_.empty()) | |
1465 | { | |
1466 | off_t off = this->first_input_offset_; | |
1467 | for (Input_section_list::iterator p = this->input_sections_.begin(); | |
1468 | p != this->input_sections_.end(); | |
1469 | ++p) | |
1470 | { | |
1471 | off = align_address(off, p->addralign()); | |
1472 | p->finalize_data_size(); | |
1473 | off += p->data_size(); | |
1474 | } | |
1475 | this->set_current_data_size_for_child(off); | |
1476 | } | |
1477 | ||
1478 | off_t buffer_size = this->current_data_size_for_child(); | |
1479 | this->postprocessing_buffer_ = new unsigned char[buffer_size]; | |
1480 | } | |
1481 | ||
1482 | // Write all the data of an Output_section into the postprocessing | |
1483 | // buffer. This is used for sections which require postprocessing, | |
1484 | // such as compression. Input sections are handled by | |
1485 | // Object::Relocate. | |
1486 | ||
1487 | void | |
1488 | Output_section::write_to_postprocessing_buffer() | |
1489 | { | |
1490 | gold_assert(this->requires_postprocessing()); | |
1491 | ||
1492 | Target* target = parameters->target(); | |
1493 | unsigned char* buffer = this->postprocessing_buffer(); | |
1494 | for (Fill_list::iterator p = this->fills_.begin(); | |
1495 | p != this->fills_.end(); | |
1496 | ++p) | |
1497 | { | |
1498 | std::string fill_data(target->code_fill(p->length())); | |
1499 | memcpy(buffer + p->section_offset(), fill_data.data(), fill_data.size()); | |
1500 | } | |
1501 | ||
1502 | off_t off = this->first_input_offset_; | |
1503 | for (Input_section_list::iterator p = this->input_sections_.begin(); | |
1504 | p != this->input_sections_.end(); | |
1505 | ++p) | |
1506 | { | |
1507 | off = align_address(off, p->addralign()); | |
1508 | p->write_to_buffer(buffer + off); | |
1509 | off += p->data_size(); | |
1510 | } | |
1511 | } | |
1512 | ||
a2fb1b05 ILT |
1513 | // Output segment methods. |
1514 | ||
1515 | Output_segment::Output_segment(elfcpp::Elf_Word type, elfcpp::Elf_Word flags) | |
54dc6425 | 1516 | : output_data_(), |
75f65a3e | 1517 | output_bss_(), |
a2fb1b05 ILT |
1518 | vaddr_(0), |
1519 | paddr_(0), | |
1520 | memsz_(0), | |
1521 | align_(0), | |
1522 | offset_(0), | |
1523 | filesz_(0), | |
1524 | type_(type), | |
ead1e424 ILT |
1525 | flags_(flags), |
1526 | is_align_known_(false) | |
a2fb1b05 ILT |
1527 | { |
1528 | } | |
1529 | ||
1530 | // Add an Output_section to an Output_segment. | |
1531 | ||
1532 | void | |
75f65a3e | 1533 | Output_segment::add_output_section(Output_section* os, |
dbe717ef ILT |
1534 | elfcpp::Elf_Word seg_flags, |
1535 | bool front) | |
a2fb1b05 | 1536 | { |
a3ad94ed ILT |
1537 | gold_assert((os->flags() & elfcpp::SHF_ALLOC) != 0); |
1538 | gold_assert(!this->is_align_known_); | |
75f65a3e | 1539 | |
ead1e424 | 1540 | // Update the segment flags. |
75f65a3e | 1541 | this->flags_ |= seg_flags; |
75f65a3e ILT |
1542 | |
1543 | Output_segment::Output_data_list* pdl; | |
1544 | if (os->type() == elfcpp::SHT_NOBITS) | |
1545 | pdl = &this->output_bss_; | |
1546 | else | |
1547 | pdl = &this->output_data_; | |
54dc6425 | 1548 | |
a2fb1b05 ILT |
1549 | // So that PT_NOTE segments will work correctly, we need to ensure |
1550 | // that all SHT_NOTE sections are adjacent. This will normally | |
1551 | // happen automatically, because all the SHT_NOTE input sections | |
1552 | // will wind up in the same output section. However, it is possible | |
1553 | // for multiple SHT_NOTE input sections to have different section | |
1554 | // flags, and thus be in different output sections, but for the | |
1555 | // different section flags to map into the same segment flags and | |
1556 | // thus the same output segment. | |
54dc6425 ILT |
1557 | |
1558 | // Note that while there may be many input sections in an output | |
1559 | // section, there are normally only a few output sections in an | |
1560 | // output segment. This loop is expected to be fast. | |
1561 | ||
61ba1cf9 | 1562 | if (os->type() == elfcpp::SHT_NOTE && !pdl->empty()) |
a2fb1b05 | 1563 | { |
a3ad94ed | 1564 | Output_segment::Output_data_list::iterator p = pdl->end(); |
75f65a3e | 1565 | do |
54dc6425 | 1566 | { |
75f65a3e | 1567 | --p; |
54dc6425 ILT |
1568 | if ((*p)->is_section_type(elfcpp::SHT_NOTE)) |
1569 | { | |
dbe717ef | 1570 | // We don't worry about the FRONT parameter. |
54dc6425 | 1571 | ++p; |
75f65a3e | 1572 | pdl->insert(p, os); |
54dc6425 ILT |
1573 | return; |
1574 | } | |
1575 | } | |
75f65a3e | 1576 | while (p != pdl->begin()); |
54dc6425 ILT |
1577 | } |
1578 | ||
1579 | // Similarly, so that PT_TLS segments will work, we need to group | |
75f65a3e ILT |
1580 | // SHF_TLS sections. An SHF_TLS/SHT_NOBITS section is a special |
1581 | // case: we group the SHF_TLS/SHT_NOBITS sections right after the | |
1582 | // SHF_TLS/SHT_PROGBITS sections. This lets us set up PT_TLS | |
07f397ab ILT |
1583 | // correctly. SHF_TLS sections get added to both a PT_LOAD segment |
1584 | // and the PT_TLS segment -- we do this grouping only for the | |
1585 | // PT_LOAD segment. | |
1586 | if (this->type_ != elfcpp::PT_TLS | |
1587 | && (os->flags() & elfcpp::SHF_TLS) != 0 | |
1588 | && !this->output_data_.empty()) | |
54dc6425 | 1589 | { |
75f65a3e ILT |
1590 | pdl = &this->output_data_; |
1591 | bool nobits = os->type() == elfcpp::SHT_NOBITS; | |
ead1e424 | 1592 | bool sawtls = false; |
a3ad94ed | 1593 | Output_segment::Output_data_list::iterator p = pdl->end(); |
75f65a3e | 1594 | do |
a2fb1b05 | 1595 | { |
75f65a3e | 1596 | --p; |
ead1e424 ILT |
1597 | bool insert; |
1598 | if ((*p)->is_section_flag_set(elfcpp::SHF_TLS)) | |
1599 | { | |
1600 | sawtls = true; | |
1601 | // Put a NOBITS section after the first TLS section. | |
1602 | // But a PROGBITS section after the first TLS/PROGBITS | |
1603 | // section. | |
1604 | insert = nobits || !(*p)->is_section_type(elfcpp::SHT_NOBITS); | |
1605 | } | |
1606 | else | |
1607 | { | |
1608 | // If we've gone past the TLS sections, but we've seen a | |
1609 | // TLS section, then we need to insert this section now. | |
1610 | insert = sawtls; | |
1611 | } | |
1612 | ||
1613 | if (insert) | |
a2fb1b05 | 1614 | { |
dbe717ef | 1615 | // We don't worry about the FRONT parameter. |
a2fb1b05 | 1616 | ++p; |
75f65a3e | 1617 | pdl->insert(p, os); |
a2fb1b05 ILT |
1618 | return; |
1619 | } | |
1620 | } | |
75f65a3e | 1621 | while (p != pdl->begin()); |
ead1e424 | 1622 | |
dbe717ef ILT |
1623 | // There are no TLS sections yet; put this one at the requested |
1624 | // location in the section list. | |
a2fb1b05 ILT |
1625 | } |
1626 | ||
dbe717ef ILT |
1627 | if (front) |
1628 | pdl->push_front(os); | |
1629 | else | |
1630 | pdl->push_back(os); | |
75f65a3e ILT |
1631 | } |
1632 | ||
1633 | // Add an Output_data (which is not an Output_section) to the start of | |
1634 | // a segment. | |
1635 | ||
1636 | void | |
1637 | Output_segment::add_initial_output_data(Output_data* od) | |
1638 | { | |
a3ad94ed | 1639 | gold_assert(!this->is_align_known_); |
75f65a3e ILT |
1640 | this->output_data_.push_front(od); |
1641 | } | |
1642 | ||
1643 | // Return the maximum alignment of the Output_data in Output_segment. | |
ead1e424 | 1644 | // Once we compute this, we prohibit new sections from being added. |
75f65a3e ILT |
1645 | |
1646 | uint64_t | |
ead1e424 | 1647 | Output_segment::addralign() |
75f65a3e | 1648 | { |
ead1e424 ILT |
1649 | if (!this->is_align_known_) |
1650 | { | |
1651 | uint64_t addralign; | |
1652 | ||
1653 | addralign = Output_segment::maximum_alignment(&this->output_data_); | |
1654 | if (addralign > this->align_) | |
1655 | this->align_ = addralign; | |
1656 | ||
1657 | addralign = Output_segment::maximum_alignment(&this->output_bss_); | |
1658 | if (addralign > this->align_) | |
1659 | this->align_ = addralign; | |
1660 | ||
1661 | this->is_align_known_ = true; | |
1662 | } | |
1663 | ||
75f65a3e ILT |
1664 | return this->align_; |
1665 | } | |
1666 | ||
ead1e424 ILT |
1667 | // Return the maximum alignment of a list of Output_data. |
1668 | ||
1669 | uint64_t | |
1670 | Output_segment::maximum_alignment(const Output_data_list* pdl) | |
1671 | { | |
1672 | uint64_t ret = 0; | |
1673 | for (Output_data_list::const_iterator p = pdl->begin(); | |
1674 | p != pdl->end(); | |
1675 | ++p) | |
1676 | { | |
1677 | uint64_t addralign = (*p)->addralign(); | |
1678 | if (addralign > ret) | |
1679 | ret = addralign; | |
1680 | } | |
1681 | return ret; | |
1682 | } | |
1683 | ||
4f4c5f80 ILT |
1684 | // Return the number of dynamic relocs applied to this segment. |
1685 | ||
1686 | unsigned int | |
1687 | Output_segment::dynamic_reloc_count() const | |
1688 | { | |
1689 | return (this->dynamic_reloc_count_list(&this->output_data_) | |
1690 | + this->dynamic_reloc_count_list(&this->output_bss_)); | |
1691 | } | |
1692 | ||
1693 | // Return the number of dynamic relocs applied to an Output_data_list. | |
1694 | ||
1695 | unsigned int | |
1696 | Output_segment::dynamic_reloc_count_list(const Output_data_list* pdl) const | |
1697 | { | |
1698 | unsigned int count = 0; | |
1699 | for (Output_data_list::const_iterator p = pdl->begin(); | |
1700 | p != pdl->end(); | |
1701 | ++p) | |
1702 | count += (*p)->dynamic_reloc_count(); | |
1703 | return count; | |
1704 | } | |
1705 | ||
75f65a3e | 1706 | // Set the section addresses for an Output_segment. ADDR is the |
ead1e424 ILT |
1707 | // address and *POFF is the file offset. Set the section indexes |
1708 | // starting with *PSHNDX. Return the address of the immediately | |
1709 | // following segment. Update *POFF and *PSHNDX. | |
75f65a3e ILT |
1710 | |
1711 | uint64_t | |
ead1e424 ILT |
1712 | Output_segment::set_section_addresses(uint64_t addr, off_t* poff, |
1713 | unsigned int* pshndx) | |
75f65a3e | 1714 | { |
a3ad94ed | 1715 | gold_assert(this->type_ == elfcpp::PT_LOAD); |
75f65a3e ILT |
1716 | |
1717 | this->vaddr_ = addr; | |
1718 | this->paddr_ = addr; | |
1719 | ||
1720 | off_t orig_off = *poff; | |
1721 | this->offset_ = orig_off; | |
1722 | ||
ead1e424 ILT |
1723 | *poff = align_address(*poff, this->addralign()); |
1724 | ||
1725 | addr = this->set_section_list_addresses(&this->output_data_, addr, poff, | |
1726 | pshndx); | |
75f65a3e ILT |
1727 | this->filesz_ = *poff - orig_off; |
1728 | ||
1729 | off_t off = *poff; | |
1730 | ||
61ba1cf9 | 1731 | uint64_t ret = this->set_section_list_addresses(&this->output_bss_, addr, |
ead1e424 | 1732 | poff, pshndx); |
75f65a3e ILT |
1733 | this->memsz_ = *poff - orig_off; |
1734 | ||
1735 | // Ignore the file offset adjustments made by the BSS Output_data | |
1736 | // objects. | |
1737 | *poff = off; | |
61ba1cf9 ILT |
1738 | |
1739 | return ret; | |
75f65a3e ILT |
1740 | } |
1741 | ||
b8e6aad9 ILT |
1742 | // Set the addresses and file offsets in a list of Output_data |
1743 | // structures. | |
75f65a3e ILT |
1744 | |
1745 | uint64_t | |
1746 | Output_segment::set_section_list_addresses(Output_data_list* pdl, | |
ead1e424 ILT |
1747 | uint64_t addr, off_t* poff, |
1748 | unsigned int* pshndx) | |
75f65a3e | 1749 | { |
ead1e424 | 1750 | off_t startoff = *poff; |
75f65a3e | 1751 | |
ead1e424 | 1752 | off_t off = startoff; |
75f65a3e ILT |
1753 | for (Output_data_list::iterator p = pdl->begin(); |
1754 | p != pdl->end(); | |
1755 | ++p) | |
1756 | { | |
ead1e424 | 1757 | off = align_address(off, (*p)->addralign()); |
27bc2bce | 1758 | (*p)->set_address_and_file_offset(addr + (off - startoff), off); |
ead1e424 ILT |
1759 | |
1760 | // Unless this is a PT_TLS segment, we want to ignore the size | |
1761 | // of a SHF_TLS/SHT_NOBITS section. Such a section does not | |
1762 | // affect the size of a PT_LOAD segment. | |
1763 | if (this->type_ == elfcpp::PT_TLS | |
1764 | || !(*p)->is_section_flag_set(elfcpp::SHF_TLS) | |
1765 | || !(*p)->is_section_type(elfcpp::SHT_NOBITS)) | |
1766 | off += (*p)->data_size(); | |
75f65a3e | 1767 | |
ead1e424 ILT |
1768 | if ((*p)->is_section()) |
1769 | { | |
1770 | (*p)->set_out_shndx(*pshndx); | |
1771 | ++*pshndx; | |
1772 | } | |
75f65a3e ILT |
1773 | } |
1774 | ||
1775 | *poff = off; | |
ead1e424 | 1776 | return addr + (off - startoff); |
75f65a3e ILT |
1777 | } |
1778 | ||
1779 | // For a non-PT_LOAD segment, set the offset from the sections, if | |
1780 | // any. | |
1781 | ||
1782 | void | |
1783 | Output_segment::set_offset() | |
1784 | { | |
a3ad94ed | 1785 | gold_assert(this->type_ != elfcpp::PT_LOAD); |
75f65a3e ILT |
1786 | |
1787 | if (this->output_data_.empty() && this->output_bss_.empty()) | |
1788 | { | |
1789 | this->vaddr_ = 0; | |
1790 | this->paddr_ = 0; | |
1791 | this->memsz_ = 0; | |
1792 | this->align_ = 0; | |
1793 | this->offset_ = 0; | |
1794 | this->filesz_ = 0; | |
1795 | return; | |
1796 | } | |
1797 | ||
1798 | const Output_data* first; | |
1799 | if (this->output_data_.empty()) | |
1800 | first = this->output_bss_.front(); | |
1801 | else | |
1802 | first = this->output_data_.front(); | |
1803 | this->vaddr_ = first->address(); | |
1804 | this->paddr_ = this->vaddr_; | |
1805 | this->offset_ = first->offset(); | |
1806 | ||
1807 | if (this->output_data_.empty()) | |
1808 | this->filesz_ = 0; | |
1809 | else | |
1810 | { | |
1811 | const Output_data* last_data = this->output_data_.back(); | |
1812 | this->filesz_ = (last_data->address() | |
1813 | + last_data->data_size() | |
1814 | - this->vaddr_); | |
1815 | } | |
1816 | ||
1817 | const Output_data* last; | |
1818 | if (this->output_bss_.empty()) | |
1819 | last = this->output_data_.back(); | |
1820 | else | |
1821 | last = this->output_bss_.back(); | |
1822 | this->memsz_ = (last->address() | |
1823 | + last->data_size() | |
1824 | - this->vaddr_); | |
75f65a3e ILT |
1825 | } |
1826 | ||
1827 | // Return the number of Output_sections in an Output_segment. | |
1828 | ||
1829 | unsigned int | |
1830 | Output_segment::output_section_count() const | |
1831 | { | |
1832 | return (this->output_section_count_list(&this->output_data_) | |
1833 | + this->output_section_count_list(&this->output_bss_)); | |
1834 | } | |
1835 | ||
1836 | // Return the number of Output_sections in an Output_data_list. | |
1837 | ||
1838 | unsigned int | |
1839 | Output_segment::output_section_count_list(const Output_data_list* pdl) const | |
1840 | { | |
1841 | unsigned int count = 0; | |
1842 | for (Output_data_list::const_iterator p = pdl->begin(); | |
1843 | p != pdl->end(); | |
1844 | ++p) | |
1845 | { | |
1846 | if ((*p)->is_section()) | |
1847 | ++count; | |
1848 | } | |
1849 | return count; | |
a2fb1b05 ILT |
1850 | } |
1851 | ||
61ba1cf9 ILT |
1852 | // Write the segment data into *OPHDR. |
1853 | ||
1854 | template<int size, bool big_endian> | |
1855 | void | |
ead1e424 | 1856 | Output_segment::write_header(elfcpp::Phdr_write<size, big_endian>* ophdr) |
61ba1cf9 ILT |
1857 | { |
1858 | ophdr->put_p_type(this->type_); | |
1859 | ophdr->put_p_offset(this->offset_); | |
1860 | ophdr->put_p_vaddr(this->vaddr_); | |
1861 | ophdr->put_p_paddr(this->paddr_); | |
1862 | ophdr->put_p_filesz(this->filesz_); | |
1863 | ophdr->put_p_memsz(this->memsz_); | |
1864 | ophdr->put_p_flags(this->flags_); | |
ead1e424 | 1865 | ophdr->put_p_align(this->addralign()); |
61ba1cf9 ILT |
1866 | } |
1867 | ||
1868 | // Write the section headers into V. | |
1869 | ||
1870 | template<int size, bool big_endian> | |
1871 | unsigned char* | |
16649710 ILT |
1872 | Output_segment::write_section_headers(const Layout* layout, |
1873 | const Stringpool* secnamepool, | |
ead1e424 ILT |
1874 | unsigned char* v, |
1875 | unsigned int *pshndx | |
5482377d ILT |
1876 | ACCEPT_SIZE_ENDIAN) const |
1877 | { | |
ead1e424 ILT |
1878 | // Every section that is attached to a segment must be attached to a |
1879 | // PT_LOAD segment, so we only write out section headers for PT_LOAD | |
1880 | // segments. | |
1881 | if (this->type_ != elfcpp::PT_LOAD) | |
1882 | return v; | |
1883 | ||
593f47df ILT |
1884 | v = this->write_section_headers_list |
1885 | SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( | |
16649710 | 1886 | layout, secnamepool, &this->output_data_, v, pshndx |
593f47df ILT |
1887 | SELECT_SIZE_ENDIAN(size, big_endian)); |
1888 | v = this->write_section_headers_list | |
1889 | SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( | |
16649710 | 1890 | layout, secnamepool, &this->output_bss_, v, pshndx |
593f47df | 1891 | SELECT_SIZE_ENDIAN(size, big_endian)); |
61ba1cf9 ILT |
1892 | return v; |
1893 | } | |
1894 | ||
1895 | template<int size, bool big_endian> | |
1896 | unsigned char* | |
16649710 ILT |
1897 | Output_segment::write_section_headers_list(const Layout* layout, |
1898 | const Stringpool* secnamepool, | |
61ba1cf9 | 1899 | const Output_data_list* pdl, |
ead1e424 ILT |
1900 | unsigned char* v, |
1901 | unsigned int* pshndx | |
5482377d | 1902 | ACCEPT_SIZE_ENDIAN) const |
61ba1cf9 ILT |
1903 | { |
1904 | const int shdr_size = elfcpp::Elf_sizes<size>::shdr_size; | |
1905 | for (Output_data_list::const_iterator p = pdl->begin(); | |
1906 | p != pdl->end(); | |
1907 | ++p) | |
1908 | { | |
1909 | if ((*p)->is_section()) | |
1910 | { | |
5482377d | 1911 | const Output_section* ps = static_cast<const Output_section*>(*p); |
a3ad94ed | 1912 | gold_assert(*pshndx == ps->out_shndx()); |
61ba1cf9 | 1913 | elfcpp::Shdr_write<size, big_endian> oshdr(v); |
16649710 | 1914 | ps->write_header(layout, secnamepool, &oshdr); |
61ba1cf9 | 1915 | v += shdr_size; |
ead1e424 | 1916 | ++*pshndx; |
61ba1cf9 ILT |
1917 | } |
1918 | } | |
1919 | return v; | |
1920 | } | |
1921 | ||
a2fb1b05 ILT |
1922 | // Output_file methods. |
1923 | ||
c51e6221 | 1924 | Output_file::Output_file(const General_options& options, Target* target) |
61ba1cf9 | 1925 | : options_(options), |
c51e6221 | 1926 | target_(target), |
61ba1cf9 ILT |
1927 | name_(options.output_file_name()), |
1928 | o_(-1), | |
1929 | file_size_(0), | |
1930 | base_(NULL) | |
1931 | { | |
1932 | } | |
1933 | ||
1934 | // Open the output file. | |
1935 | ||
a2fb1b05 | 1936 | void |
61ba1cf9 | 1937 | Output_file::open(off_t file_size) |
a2fb1b05 | 1938 | { |
61ba1cf9 ILT |
1939 | this->file_size_ = file_size; |
1940 | ||
4e9d8586 ILT |
1941 | // Unlink the file first; otherwise the open() may fail if the file |
1942 | // is busy (e.g. it's an executable that's currently being executed). | |
1943 | // | |
1944 | // However, the linker may be part of a system where a zero-length | |
1945 | // file is created for it to write to, with tight permissions (gcc | |
1946 | // 2.95 did something like this). Unlinking the file would work | |
1947 | // around those permission controls, so we only unlink if the file | |
1948 | // has a non-zero size. We also unlink only regular files to avoid | |
1949 | // trouble with directories/etc. | |
1950 | // | |
1951 | // If we fail, continue; this command is merely a best-effort attempt | |
1952 | // to improve the odds for open(). | |
1953 | ||
4e9d8586 | 1954 | struct stat s; |
5ffcaa86 ILT |
1955 | if (::stat(this->name_, &s) == 0 && s.st_size != 0) |
1956 | unlink_if_ordinary(this->name_); | |
4e9d8586 | 1957 | |
7e1edb90 | 1958 | int mode = parameters->output_is_object() ? 0666 : 0777; |
61ba1cf9 ILT |
1959 | int o = ::open(this->name_, O_RDWR | O_CREAT | O_TRUNC, mode); |
1960 | if (o < 0) | |
75f2446e | 1961 | gold_fatal(_("%s: open: %s"), this->name_, strerror(errno)); |
61ba1cf9 ILT |
1962 | this->o_ = o; |
1963 | ||
27bc2bce ILT |
1964 | this->map(); |
1965 | } | |
1966 | ||
1967 | // Resize the output file. | |
1968 | ||
1969 | void | |
1970 | Output_file::resize(off_t file_size) | |
1971 | { | |
1972 | if (::munmap(this->base_, this->file_size_) < 0) | |
1973 | gold_error(_("%s: munmap: %s"), this->name_, strerror(errno)); | |
1974 | this->file_size_ = file_size; | |
1975 | this->map(); | |
1976 | } | |
1977 | ||
1978 | // Map the file into memory. | |
1979 | ||
1980 | void | |
1981 | Output_file::map() | |
1982 | { | |
1983 | int o = this->o_; | |
1984 | ||
61ba1cf9 | 1985 | // Write out one byte to make the file the right size. |
27bc2bce | 1986 | if (::lseek(o, this->file_size_ - 1, SEEK_SET) < 0) |
75f2446e | 1987 | gold_fatal(_("%s: lseek: %s"), this->name_, strerror(errno)); |
61ba1cf9 ILT |
1988 | char b = 0; |
1989 | if (::write(o, &b, 1) != 1) | |
75f2446e | 1990 | gold_fatal(_("%s: write: %s"), this->name_, strerror(errno)); |
61ba1cf9 ILT |
1991 | |
1992 | // Map the file into memory. | |
27bc2bce | 1993 | void* base = ::mmap(NULL, this->file_size_, PROT_READ | PROT_WRITE, |
61ba1cf9 ILT |
1994 | MAP_SHARED, o, 0); |
1995 | if (base == MAP_FAILED) | |
75f2446e | 1996 | gold_fatal(_("%s: mmap: %s"), this->name_, strerror(errno)); |
61ba1cf9 ILT |
1997 | this->base_ = static_cast<unsigned char*>(base); |
1998 | } | |
1999 | ||
2000 | // Close the output file. | |
2001 | ||
2002 | void | |
2003 | Output_file::close() | |
2004 | { | |
2005 | if (::munmap(this->base_, this->file_size_) < 0) | |
a0c4fb0a | 2006 | gold_error(_("%s: munmap: %s"), this->name_, strerror(errno)); |
61ba1cf9 ILT |
2007 | this->base_ = NULL; |
2008 | ||
2009 | if (::close(this->o_) < 0) | |
75f2446e | 2010 | gold_error(_("%s: close: %s"), this->name_, strerror(errno)); |
61ba1cf9 | 2011 | this->o_ = -1; |
a2fb1b05 ILT |
2012 | } |
2013 | ||
2014 | // Instantiate the templates we need. We could use the configure | |
2015 | // script to restrict this to only the ones for implemented targets. | |
2016 | ||
193a53d9 | 2017 | #ifdef HAVE_TARGET_32_LITTLE |
a2fb1b05 ILT |
2018 | template |
2019 | off_t | |
2020 | Output_section::add_input_section<32, false>( | |
730cdc88 | 2021 | Sized_relobj<32, false>* object, |
ead1e424 | 2022 | unsigned int shndx, |
a2fb1b05 | 2023 | const char* secname, |
730cdc88 ILT |
2024 | const elfcpp::Shdr<32, false>& shdr, |
2025 | unsigned int reloc_shndx); | |
193a53d9 | 2026 | #endif |
a2fb1b05 | 2027 | |
193a53d9 | 2028 | #ifdef HAVE_TARGET_32_BIG |
a2fb1b05 ILT |
2029 | template |
2030 | off_t | |
2031 | Output_section::add_input_section<32, true>( | |
730cdc88 | 2032 | Sized_relobj<32, true>* object, |
ead1e424 | 2033 | unsigned int shndx, |
a2fb1b05 | 2034 | const char* secname, |
730cdc88 ILT |
2035 | const elfcpp::Shdr<32, true>& shdr, |
2036 | unsigned int reloc_shndx); | |
193a53d9 | 2037 | #endif |
a2fb1b05 | 2038 | |
193a53d9 | 2039 | #ifdef HAVE_TARGET_64_LITTLE |
a2fb1b05 ILT |
2040 | template |
2041 | off_t | |
2042 | Output_section::add_input_section<64, false>( | |
730cdc88 | 2043 | Sized_relobj<64, false>* object, |
ead1e424 | 2044 | unsigned int shndx, |
a2fb1b05 | 2045 | const char* secname, |
730cdc88 ILT |
2046 | const elfcpp::Shdr<64, false>& shdr, |
2047 | unsigned int reloc_shndx); | |
193a53d9 | 2048 | #endif |
a2fb1b05 | 2049 | |
193a53d9 | 2050 | #ifdef HAVE_TARGET_64_BIG |
a2fb1b05 ILT |
2051 | template |
2052 | off_t | |
2053 | Output_section::add_input_section<64, true>( | |
730cdc88 | 2054 | Sized_relobj<64, true>* object, |
ead1e424 | 2055 | unsigned int shndx, |
a2fb1b05 | 2056 | const char* secname, |
730cdc88 ILT |
2057 | const elfcpp::Shdr<64, true>& shdr, |
2058 | unsigned int reloc_shndx); | |
193a53d9 | 2059 | #endif |
a2fb1b05 | 2060 | |
193a53d9 | 2061 | #ifdef HAVE_TARGET_32_LITTLE |
c06b7b0b ILT |
2062 | template |
2063 | class Output_data_reloc<elfcpp::SHT_REL, false, 32, false>; | |
193a53d9 | 2064 | #endif |
c06b7b0b | 2065 | |
193a53d9 | 2066 | #ifdef HAVE_TARGET_32_BIG |
c06b7b0b ILT |
2067 | template |
2068 | class Output_data_reloc<elfcpp::SHT_REL, false, 32, true>; | |
193a53d9 | 2069 | #endif |
c06b7b0b | 2070 | |
193a53d9 | 2071 | #ifdef HAVE_TARGET_64_LITTLE |
c06b7b0b ILT |
2072 | template |
2073 | class Output_data_reloc<elfcpp::SHT_REL, false, 64, false>; | |
193a53d9 | 2074 | #endif |
c06b7b0b | 2075 | |
193a53d9 | 2076 | #ifdef HAVE_TARGET_64_BIG |
c06b7b0b ILT |
2077 | template |
2078 | class Output_data_reloc<elfcpp::SHT_REL, false, 64, true>; | |
193a53d9 | 2079 | #endif |
c06b7b0b | 2080 | |
193a53d9 | 2081 | #ifdef HAVE_TARGET_32_LITTLE |
c06b7b0b ILT |
2082 | template |
2083 | class Output_data_reloc<elfcpp::SHT_REL, true, 32, false>; | |
193a53d9 | 2084 | #endif |
c06b7b0b | 2085 | |
193a53d9 | 2086 | #ifdef HAVE_TARGET_32_BIG |
c06b7b0b ILT |
2087 | template |
2088 | class Output_data_reloc<elfcpp::SHT_REL, true, 32, true>; | |
193a53d9 | 2089 | #endif |
c06b7b0b | 2090 | |
193a53d9 | 2091 | #ifdef HAVE_TARGET_64_LITTLE |
c06b7b0b ILT |
2092 | template |
2093 | class Output_data_reloc<elfcpp::SHT_REL, true, 64, false>; | |
193a53d9 | 2094 | #endif |
c06b7b0b | 2095 | |
193a53d9 | 2096 | #ifdef HAVE_TARGET_64_BIG |
c06b7b0b ILT |
2097 | template |
2098 | class Output_data_reloc<elfcpp::SHT_REL, true, 64, true>; | |
193a53d9 | 2099 | #endif |
c06b7b0b | 2100 | |
193a53d9 | 2101 | #ifdef HAVE_TARGET_32_LITTLE |
c06b7b0b ILT |
2102 | template |
2103 | class Output_data_reloc<elfcpp::SHT_RELA, false, 32, false>; | |
193a53d9 | 2104 | #endif |
c06b7b0b | 2105 | |
193a53d9 | 2106 | #ifdef HAVE_TARGET_32_BIG |
c06b7b0b ILT |
2107 | template |
2108 | class Output_data_reloc<elfcpp::SHT_RELA, false, 32, true>; | |
193a53d9 | 2109 | #endif |
c06b7b0b | 2110 | |
193a53d9 | 2111 | #ifdef HAVE_TARGET_64_LITTLE |
c06b7b0b ILT |
2112 | template |
2113 | class Output_data_reloc<elfcpp::SHT_RELA, false, 64, false>; | |
193a53d9 | 2114 | #endif |
c06b7b0b | 2115 | |
193a53d9 | 2116 | #ifdef HAVE_TARGET_64_BIG |
c06b7b0b ILT |
2117 | template |
2118 | class Output_data_reloc<elfcpp::SHT_RELA, false, 64, true>; | |
193a53d9 | 2119 | #endif |
c06b7b0b | 2120 | |
193a53d9 | 2121 | #ifdef HAVE_TARGET_32_LITTLE |
c06b7b0b ILT |
2122 | template |
2123 | class Output_data_reloc<elfcpp::SHT_RELA, true, 32, false>; | |
193a53d9 | 2124 | #endif |
c06b7b0b | 2125 | |
193a53d9 | 2126 | #ifdef HAVE_TARGET_32_BIG |
c06b7b0b ILT |
2127 | template |
2128 | class Output_data_reloc<elfcpp::SHT_RELA, true, 32, true>; | |
193a53d9 | 2129 | #endif |
c06b7b0b | 2130 | |
193a53d9 | 2131 | #ifdef HAVE_TARGET_64_LITTLE |
c06b7b0b ILT |
2132 | template |
2133 | class Output_data_reloc<elfcpp::SHT_RELA, true, 64, false>; | |
193a53d9 | 2134 | #endif |
c06b7b0b | 2135 | |
193a53d9 | 2136 | #ifdef HAVE_TARGET_64_BIG |
c06b7b0b ILT |
2137 | template |
2138 | class Output_data_reloc<elfcpp::SHT_RELA, true, 64, true>; | |
193a53d9 | 2139 | #endif |
c06b7b0b | 2140 | |
193a53d9 | 2141 | #ifdef HAVE_TARGET_32_LITTLE |
ead1e424 | 2142 | template |
dbe717ef | 2143 | class Output_data_got<32, false>; |
193a53d9 | 2144 | #endif |
ead1e424 | 2145 | |
193a53d9 | 2146 | #ifdef HAVE_TARGET_32_BIG |
ead1e424 | 2147 | template |
dbe717ef | 2148 | class Output_data_got<32, true>; |
193a53d9 | 2149 | #endif |
ead1e424 | 2150 | |
193a53d9 | 2151 | #ifdef HAVE_TARGET_64_LITTLE |
ead1e424 | 2152 | template |
dbe717ef | 2153 | class Output_data_got<64, false>; |
193a53d9 | 2154 | #endif |
ead1e424 | 2155 | |
193a53d9 | 2156 | #ifdef HAVE_TARGET_64_BIG |
ead1e424 | 2157 | template |
dbe717ef | 2158 | class Output_data_got<64, true>; |
193a53d9 | 2159 | #endif |
ead1e424 | 2160 | |
a2fb1b05 | 2161 | } // End namespace gold. |