Commit | Line | Data |
---|---|---|
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 | ||
c420411f ILT |
41 | // Some BSD systems still use MAP_ANON instead of MAP_ANONYMOUS |
42 | #ifndef MAP_ANONYMOUS | |
43 | # define MAP_ANONYMOUS MAP_ANON | |
44 | #endif | |
45 | ||
a2fb1b05 ILT |
46 | namespace gold |
47 | { | |
48 | ||
a3ad94ed ILT |
49 | // Output_data variables. |
50 | ||
27bc2bce | 51 | bool Output_data::allocated_sizes_are_fixed; |
a3ad94ed | 52 | |
a2fb1b05 ILT |
53 | // Output_data methods. |
54 | ||
55 | Output_data::~Output_data() | |
56 | { | |
57 | } | |
58 | ||
730cdc88 ILT |
59 | // Return the default alignment for the target size. |
60 | ||
61 | uint64_t | |
62 | Output_data::default_alignment() | |
63 | { | |
64 | return Output_data::default_alignment_for_size(parameters->get_size()); | |
65 | } | |
66 | ||
75f65a3e ILT |
67 | // Return the default alignment for a size--32 or 64. |
68 | ||
69 | uint64_t | |
730cdc88 | 70 | Output_data::default_alignment_for_size(int size) |
75f65a3e ILT |
71 | { |
72 | if (size == 32) | |
73 | return 4; | |
74 | else if (size == 64) | |
75 | return 8; | |
76 | else | |
a3ad94ed | 77 | gold_unreachable(); |
75f65a3e ILT |
78 | } |
79 | ||
75f65a3e ILT |
80 | // Output_section_header methods. This currently assumes that the |
81 | // segment and section lists are complete at construction time. | |
82 | ||
83 | Output_section_headers::Output_section_headers( | |
16649710 ILT |
84 | const Layout* layout, |
85 | const Layout::Segment_list* segment_list, | |
86 | const Layout::Section_list* unattached_section_list, | |
61ba1cf9 | 87 | const Stringpool* secnamepool) |
9025d29d | 88 | : layout_(layout), |
75f65a3e | 89 | segment_list_(segment_list), |
a3ad94ed | 90 | unattached_section_list_(unattached_section_list), |
61ba1cf9 | 91 | secnamepool_(secnamepool) |
75f65a3e | 92 | { |
61ba1cf9 ILT |
93 | // Count all the sections. Start with 1 for the null section. |
94 | off_t count = 1; | |
16649710 ILT |
95 | for (Layout::Segment_list::const_iterator p = segment_list->begin(); |
96 | p != segment_list->end(); | |
75f65a3e | 97 | ++p) |
ead1e424 ILT |
98 | if ((*p)->type() == elfcpp::PT_LOAD) |
99 | count += (*p)->output_section_count(); | |
16649710 | 100 | count += unattached_section_list->size(); |
75f65a3e | 101 | |
9025d29d | 102 | const int size = parameters->get_size(); |
75f65a3e ILT |
103 | int shdr_size; |
104 | if (size == 32) | |
105 | shdr_size = elfcpp::Elf_sizes<32>::shdr_size; | |
106 | else if (size == 64) | |
107 | shdr_size = elfcpp::Elf_sizes<64>::shdr_size; | |
108 | else | |
a3ad94ed | 109 | gold_unreachable(); |
75f65a3e ILT |
110 | |
111 | this->set_data_size(count * shdr_size); | |
112 | } | |
113 | ||
61ba1cf9 ILT |
114 | // Write out the section headers. |
115 | ||
75f65a3e | 116 | void |
61ba1cf9 | 117 | Output_section_headers::do_write(Output_file* of) |
a2fb1b05 | 118 | { |
9025d29d | 119 | if (parameters->get_size() == 32) |
61ba1cf9 | 120 | { |
9025d29d ILT |
121 | if (parameters->is_big_endian()) |
122 | { | |
123 | #ifdef HAVE_TARGET_32_BIG | |
124 | this->do_sized_write<32, true>(of); | |
125 | #else | |
126 | gold_unreachable(); | |
127 | #endif | |
128 | } | |
61ba1cf9 | 129 | else |
9025d29d ILT |
130 | { |
131 | #ifdef HAVE_TARGET_32_LITTLE | |
132 | this->do_sized_write<32, false>(of); | |
133 | #else | |
134 | gold_unreachable(); | |
135 | #endif | |
136 | } | |
61ba1cf9 | 137 | } |
9025d29d | 138 | else if (parameters->get_size() == 64) |
61ba1cf9 | 139 | { |
9025d29d ILT |
140 | if (parameters->is_big_endian()) |
141 | { | |
142 | #ifdef HAVE_TARGET_64_BIG | |
143 | this->do_sized_write<64, true>(of); | |
144 | #else | |
145 | gold_unreachable(); | |
146 | #endif | |
147 | } | |
61ba1cf9 | 148 | else |
9025d29d ILT |
149 | { |
150 | #ifdef HAVE_TARGET_64_LITTLE | |
151 | this->do_sized_write<64, false>(of); | |
152 | #else | |
153 | gold_unreachable(); | |
154 | #endif | |
155 | } | |
61ba1cf9 ILT |
156 | } |
157 | else | |
a3ad94ed | 158 | gold_unreachable(); |
61ba1cf9 ILT |
159 | } |
160 | ||
161 | template<int size, bool big_endian> | |
162 | void | |
163 | Output_section_headers::do_sized_write(Output_file* of) | |
164 | { | |
165 | off_t all_shdrs_size = this->data_size(); | |
166 | unsigned char* view = of->get_output_view(this->offset(), all_shdrs_size); | |
167 | ||
168 | const int shdr_size = elfcpp::Elf_sizes<size>::shdr_size; | |
169 | unsigned char* v = view; | |
170 | ||
171 | { | |
172 | typename elfcpp::Shdr_write<size, big_endian> oshdr(v); | |
173 | oshdr.put_sh_name(0); | |
174 | oshdr.put_sh_type(elfcpp::SHT_NULL); | |
175 | oshdr.put_sh_flags(0); | |
176 | oshdr.put_sh_addr(0); | |
177 | oshdr.put_sh_offset(0); | |
178 | oshdr.put_sh_size(0); | |
179 | oshdr.put_sh_link(0); | |
180 | oshdr.put_sh_info(0); | |
181 | oshdr.put_sh_addralign(0); | |
182 | oshdr.put_sh_entsize(0); | |
183 | } | |
184 | ||
185 | v += shdr_size; | |
186 | ||
ead1e424 | 187 | unsigned shndx = 1; |
16649710 ILT |
188 | for (Layout::Segment_list::const_iterator p = this->segment_list_->begin(); |
189 | p != this->segment_list_->end(); | |
61ba1cf9 | 190 | ++p) |
593f47df | 191 | v = (*p)->write_section_headers SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( |
16649710 | 192 | this->layout_, this->secnamepool_, v, &shndx |
ead1e424 | 193 | SELECT_SIZE_ENDIAN(size, big_endian)); |
a3ad94ed | 194 | for (Layout::Section_list::const_iterator p = |
16649710 ILT |
195 | this->unattached_section_list_->begin(); |
196 | p != this->unattached_section_list_->end(); | |
61ba1cf9 ILT |
197 | ++p) |
198 | { | |
a3ad94ed | 199 | gold_assert(shndx == (*p)->out_shndx()); |
61ba1cf9 | 200 | elfcpp::Shdr_write<size, big_endian> oshdr(v); |
16649710 | 201 | (*p)->write_header(this->layout_, this->secnamepool_, &oshdr); |
61ba1cf9 | 202 | v += shdr_size; |
ead1e424 | 203 | ++shndx; |
61ba1cf9 ILT |
204 | } |
205 | ||
206 | of->write_output_view(this->offset(), all_shdrs_size, view); | |
a2fb1b05 ILT |
207 | } |
208 | ||
54dc6425 ILT |
209 | // Output_segment_header methods. |
210 | ||
61ba1cf9 | 211 | Output_segment_headers::Output_segment_headers( |
61ba1cf9 | 212 | const Layout::Segment_list& segment_list) |
9025d29d | 213 | : segment_list_(segment_list) |
61ba1cf9 | 214 | { |
9025d29d | 215 | const int size = parameters->get_size(); |
61ba1cf9 ILT |
216 | int phdr_size; |
217 | if (size == 32) | |
218 | phdr_size = elfcpp::Elf_sizes<32>::phdr_size; | |
219 | else if (size == 64) | |
220 | phdr_size = elfcpp::Elf_sizes<64>::phdr_size; | |
221 | else | |
a3ad94ed | 222 | gold_unreachable(); |
61ba1cf9 ILT |
223 | |
224 | this->set_data_size(segment_list.size() * phdr_size); | |
225 | } | |
226 | ||
54dc6425 | 227 | void |
61ba1cf9 | 228 | Output_segment_headers::do_write(Output_file* of) |
75f65a3e | 229 | { |
9025d29d | 230 | if (parameters->get_size() == 32) |
61ba1cf9 | 231 | { |
9025d29d ILT |
232 | if (parameters->is_big_endian()) |
233 | { | |
234 | #ifdef HAVE_TARGET_32_BIG | |
235 | this->do_sized_write<32, true>(of); | |
236 | #else | |
237 | gold_unreachable(); | |
238 | #endif | |
239 | } | |
61ba1cf9 | 240 | else |
9025d29d ILT |
241 | { |
242 | #ifdef HAVE_TARGET_32_LITTLE | |
61ba1cf9 | 243 | this->do_sized_write<32, false>(of); |
9025d29d ILT |
244 | #else |
245 | gold_unreachable(); | |
246 | #endif | |
247 | } | |
61ba1cf9 | 248 | } |
9025d29d | 249 | else if (parameters->get_size() == 64) |
61ba1cf9 | 250 | { |
9025d29d ILT |
251 | if (parameters->is_big_endian()) |
252 | { | |
253 | #ifdef HAVE_TARGET_64_BIG | |
254 | this->do_sized_write<64, true>(of); | |
255 | #else | |
256 | gold_unreachable(); | |
257 | #endif | |
258 | } | |
61ba1cf9 | 259 | else |
9025d29d ILT |
260 | { |
261 | #ifdef HAVE_TARGET_64_LITTLE | |
262 | this->do_sized_write<64, false>(of); | |
263 | #else | |
264 | gold_unreachable(); | |
265 | #endif | |
266 | } | |
61ba1cf9 ILT |
267 | } |
268 | else | |
a3ad94ed | 269 | gold_unreachable(); |
61ba1cf9 ILT |
270 | } |
271 | ||
272 | template<int size, bool big_endian> | |
273 | void | |
274 | Output_segment_headers::do_sized_write(Output_file* of) | |
275 | { | |
276 | const int phdr_size = elfcpp::Elf_sizes<size>::phdr_size; | |
277 | off_t all_phdrs_size = this->segment_list_.size() * phdr_size; | |
278 | unsigned char* view = of->get_output_view(this->offset(), | |
279 | all_phdrs_size); | |
280 | unsigned char* v = view; | |
281 | for (Layout::Segment_list::const_iterator p = this->segment_list_.begin(); | |
282 | p != this->segment_list_.end(); | |
283 | ++p) | |
284 | { | |
285 | elfcpp::Phdr_write<size, big_endian> ophdr(v); | |
286 | (*p)->write_header(&ophdr); | |
287 | v += phdr_size; | |
288 | } | |
289 | ||
290 | of->write_output_view(this->offset(), all_phdrs_size, view); | |
75f65a3e ILT |
291 | } |
292 | ||
293 | // Output_file_header methods. | |
294 | ||
9025d29d | 295 | Output_file_header::Output_file_header(const Target* target, |
75f65a3e ILT |
296 | const Symbol_table* symtab, |
297 | const Output_segment_headers* osh) | |
9025d29d | 298 | : target_(target), |
75f65a3e | 299 | symtab_(symtab), |
61ba1cf9 | 300 | segment_header_(osh), |
75f65a3e ILT |
301 | section_header_(NULL), |
302 | shstrtab_(NULL) | |
303 | { | |
9025d29d | 304 | const int size = parameters->get_size(); |
61ba1cf9 ILT |
305 | int ehdr_size; |
306 | if (size == 32) | |
307 | ehdr_size = elfcpp::Elf_sizes<32>::ehdr_size; | |
308 | else if (size == 64) | |
309 | ehdr_size = elfcpp::Elf_sizes<64>::ehdr_size; | |
310 | else | |
a3ad94ed | 311 | gold_unreachable(); |
61ba1cf9 ILT |
312 | |
313 | this->set_data_size(ehdr_size); | |
75f65a3e ILT |
314 | } |
315 | ||
316 | // Set the section table information for a file header. | |
317 | ||
318 | void | |
319 | Output_file_header::set_section_info(const Output_section_headers* shdrs, | |
320 | const Output_section* shstrtab) | |
321 | { | |
322 | this->section_header_ = shdrs; | |
323 | this->shstrtab_ = shstrtab; | |
324 | } | |
325 | ||
326 | // Write out the file header. | |
327 | ||
328 | void | |
61ba1cf9 | 329 | Output_file_header::do_write(Output_file* of) |
54dc6425 | 330 | { |
27bc2bce ILT |
331 | gold_assert(this->offset() == 0); |
332 | ||
9025d29d | 333 | if (parameters->get_size() == 32) |
61ba1cf9 | 334 | { |
9025d29d ILT |
335 | if (parameters->is_big_endian()) |
336 | { | |
337 | #ifdef HAVE_TARGET_32_BIG | |
338 | this->do_sized_write<32, true>(of); | |
339 | #else | |
340 | gold_unreachable(); | |
341 | #endif | |
342 | } | |
61ba1cf9 | 343 | else |
9025d29d ILT |
344 | { |
345 | #ifdef HAVE_TARGET_32_LITTLE | |
346 | this->do_sized_write<32, false>(of); | |
347 | #else | |
348 | gold_unreachable(); | |
349 | #endif | |
350 | } | |
61ba1cf9 | 351 | } |
9025d29d | 352 | else if (parameters->get_size() == 64) |
61ba1cf9 | 353 | { |
9025d29d ILT |
354 | if (parameters->is_big_endian()) |
355 | { | |
356 | #ifdef HAVE_TARGET_64_BIG | |
357 | this->do_sized_write<64, true>(of); | |
358 | #else | |
359 | gold_unreachable(); | |
360 | #endif | |
361 | } | |
61ba1cf9 | 362 | else |
9025d29d ILT |
363 | { |
364 | #ifdef HAVE_TARGET_64_LITTLE | |
365 | this->do_sized_write<64, false>(of); | |
366 | #else | |
367 | gold_unreachable(); | |
368 | #endif | |
369 | } | |
61ba1cf9 ILT |
370 | } |
371 | else | |
a3ad94ed | 372 | gold_unreachable(); |
61ba1cf9 ILT |
373 | } |
374 | ||
375 | // Write out the file header with appropriate size and endianess. | |
376 | ||
377 | template<int size, bool big_endian> | |
378 | void | |
379 | Output_file_header::do_sized_write(Output_file* of) | |
380 | { | |
a3ad94ed | 381 | gold_assert(this->offset() == 0); |
61ba1cf9 ILT |
382 | |
383 | int ehdr_size = elfcpp::Elf_sizes<size>::ehdr_size; | |
384 | unsigned char* view = of->get_output_view(0, ehdr_size); | |
385 | elfcpp::Ehdr_write<size, big_endian> oehdr(view); | |
386 | ||
387 | unsigned char e_ident[elfcpp::EI_NIDENT]; | |
388 | memset(e_ident, 0, elfcpp::EI_NIDENT); | |
389 | e_ident[elfcpp::EI_MAG0] = elfcpp::ELFMAG0; | |
390 | e_ident[elfcpp::EI_MAG1] = elfcpp::ELFMAG1; | |
391 | e_ident[elfcpp::EI_MAG2] = elfcpp::ELFMAG2; | |
392 | e_ident[elfcpp::EI_MAG3] = elfcpp::ELFMAG3; | |
393 | if (size == 32) | |
394 | e_ident[elfcpp::EI_CLASS] = elfcpp::ELFCLASS32; | |
395 | else if (size == 64) | |
396 | e_ident[elfcpp::EI_CLASS] = elfcpp::ELFCLASS64; | |
397 | else | |
a3ad94ed | 398 | gold_unreachable(); |
61ba1cf9 ILT |
399 | e_ident[elfcpp::EI_DATA] = (big_endian |
400 | ? elfcpp::ELFDATA2MSB | |
401 | : elfcpp::ELFDATA2LSB); | |
402 | e_ident[elfcpp::EI_VERSION] = elfcpp::EV_CURRENT; | |
403 | // FIXME: Some targets may need to set EI_OSABI and EI_ABIVERSION. | |
404 | oehdr.put_e_ident(e_ident); | |
405 | ||
406 | elfcpp::ET e_type; | |
7e1edb90 | 407 | if (parameters->output_is_object()) |
61ba1cf9 | 408 | e_type = elfcpp::ET_REL; |
436ca963 ILT |
409 | else if (parameters->output_is_shared()) |
410 | e_type = elfcpp::ET_DYN; | |
61ba1cf9 ILT |
411 | else |
412 | e_type = elfcpp::ET_EXEC; | |
413 | oehdr.put_e_type(e_type); | |
414 | ||
415 | oehdr.put_e_machine(this->target_->machine_code()); | |
416 | oehdr.put_e_version(elfcpp::EV_CURRENT); | |
417 | ||
ead1e424 | 418 | // FIXME: Need to support -e, and target specific entry symbol. |
61ba1cf9 ILT |
419 | Symbol* sym = this->symtab_->lookup("_start"); |
420 | typename Sized_symbol<size>::Value_type v; | |
421 | if (sym == NULL) | |
422 | v = 0; | |
423 | else | |
424 | { | |
425 | Sized_symbol<size>* ssym; | |
593f47df | 426 | ssym = this->symtab_->get_sized_symbol SELECT_SIZE_NAME(size) ( |
5482377d | 427 | sym SELECT_SIZE(size)); |
61ba1cf9 ILT |
428 | v = ssym->value(); |
429 | } | |
430 | oehdr.put_e_entry(v); | |
431 | ||
432 | oehdr.put_e_phoff(this->segment_header_->offset()); | |
433 | oehdr.put_e_shoff(this->section_header_->offset()); | |
434 | ||
435 | // FIXME: The target needs to set the flags. | |
436 | oehdr.put_e_flags(0); | |
437 | ||
438 | oehdr.put_e_ehsize(elfcpp::Elf_sizes<size>::ehdr_size); | |
439 | oehdr.put_e_phentsize(elfcpp::Elf_sizes<size>::phdr_size); | |
440 | oehdr.put_e_phnum(this->segment_header_->data_size() | |
441 | / elfcpp::Elf_sizes<size>::phdr_size); | |
442 | oehdr.put_e_shentsize(elfcpp::Elf_sizes<size>::shdr_size); | |
443 | oehdr.put_e_shnum(this->section_header_->data_size() | |
444 | / elfcpp::Elf_sizes<size>::shdr_size); | |
ead1e424 | 445 | oehdr.put_e_shstrndx(this->shstrtab_->out_shndx()); |
61ba1cf9 ILT |
446 | |
447 | of->write_output_view(0, ehdr_size, view); | |
54dc6425 ILT |
448 | } |
449 | ||
dbe717ef ILT |
450 | // Output_data_const methods. |
451 | ||
452 | void | |
a3ad94ed | 453 | Output_data_const::do_write(Output_file* of) |
dbe717ef | 454 | { |
a3ad94ed ILT |
455 | of->write(this->offset(), this->data_.data(), this->data_.size()); |
456 | } | |
457 | ||
458 | // Output_data_const_buffer methods. | |
459 | ||
460 | void | |
461 | Output_data_const_buffer::do_write(Output_file* of) | |
462 | { | |
463 | of->write(this->offset(), this->p_, this->data_size()); | |
dbe717ef ILT |
464 | } |
465 | ||
466 | // Output_section_data methods. | |
467 | ||
16649710 ILT |
468 | // Record the output section, and set the entry size and such. |
469 | ||
470 | void | |
471 | Output_section_data::set_output_section(Output_section* os) | |
472 | { | |
473 | gold_assert(this->output_section_ == NULL); | |
474 | this->output_section_ = os; | |
475 | this->do_adjust_output_section(os); | |
476 | } | |
477 | ||
478 | // Return the section index of the output section. | |
479 | ||
dbe717ef ILT |
480 | unsigned int |
481 | Output_section_data::do_out_shndx() const | |
482 | { | |
a3ad94ed | 483 | gold_assert(this->output_section_ != NULL); |
dbe717ef ILT |
484 | return this->output_section_->out_shndx(); |
485 | } | |
486 | ||
a3ad94ed ILT |
487 | // Output_data_strtab methods. |
488 | ||
27bc2bce | 489 | // Set the final data size. |
a3ad94ed ILT |
490 | |
491 | void | |
27bc2bce | 492 | Output_data_strtab::set_final_data_size() |
a3ad94ed ILT |
493 | { |
494 | this->strtab_->set_string_offsets(); | |
495 | this->set_data_size(this->strtab_->get_strtab_size()); | |
496 | } | |
497 | ||
498 | // Write out a string table. | |
499 | ||
500 | void | |
501 | Output_data_strtab::do_write(Output_file* of) | |
502 | { | |
503 | this->strtab_->write(of, this->offset()); | |
504 | } | |
505 | ||
c06b7b0b ILT |
506 | // Output_reloc methods. |
507 | ||
508 | // Get the symbol index of a relocation. | |
509 | ||
510 | template<bool dynamic, int size, bool big_endian> | |
511 | unsigned int | |
512 | Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::get_symbol_index() | |
513 | const | |
514 | { | |
515 | unsigned int index; | |
516 | switch (this->local_sym_index_) | |
517 | { | |
518 | case INVALID_CODE: | |
a3ad94ed | 519 | gold_unreachable(); |
c06b7b0b ILT |
520 | |
521 | case GSYM_CODE: | |
5a6f7e2d | 522 | if (this->u1_.gsym == NULL) |
c06b7b0b ILT |
523 | index = 0; |
524 | else if (dynamic) | |
5a6f7e2d | 525 | index = this->u1_.gsym->dynsym_index(); |
c06b7b0b | 526 | else |
5a6f7e2d | 527 | index = this->u1_.gsym->symtab_index(); |
c06b7b0b ILT |
528 | break; |
529 | ||
530 | case SECTION_CODE: | |
531 | if (dynamic) | |
5a6f7e2d | 532 | index = this->u1_.os->dynsym_index(); |
c06b7b0b | 533 | else |
5a6f7e2d | 534 | index = this->u1_.os->symtab_index(); |
c06b7b0b ILT |
535 | break; |
536 | ||
436ca963 ILT |
537 | case 0: |
538 | // Relocations without symbols use a symbol index of 0. | |
539 | index = 0; | |
540 | break; | |
541 | ||
c06b7b0b ILT |
542 | default: |
543 | if (dynamic) | |
544 | { | |
545 | // FIXME: It seems that some targets may need to generate | |
546 | // dynamic relocations against local symbols for some | |
547 | // reasons. This will have to be addressed at some point. | |
a3ad94ed | 548 | gold_unreachable(); |
c06b7b0b ILT |
549 | } |
550 | else | |
5a6f7e2d | 551 | index = this->u1_.relobj->symtab_index(this->local_sym_index_); |
c06b7b0b ILT |
552 | break; |
553 | } | |
a3ad94ed | 554 | gold_assert(index != -1U); |
c06b7b0b ILT |
555 | return index; |
556 | } | |
557 | ||
558 | // Write out the offset and info fields of a Rel or Rela relocation | |
559 | // entry. | |
560 | ||
561 | template<bool dynamic, int size, bool big_endian> | |
562 | template<typename Write_rel> | |
563 | void | |
564 | Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::write_rel( | |
565 | Write_rel* wr) const | |
566 | { | |
a3ad94ed | 567 | Address address = this->address_; |
5a6f7e2d ILT |
568 | if (this->shndx_ != INVALID_CODE) |
569 | { | |
570 | off_t off; | |
571 | Output_section* os = this->u2_.relobj->output_section(this->shndx_, | |
572 | &off); | |
573 | gold_assert(os != NULL); | |
730cdc88 ILT |
574 | if (off != -1) |
575 | address += os->address() + off; | |
576 | else | |
577 | { | |
578 | address = os->output_address(this->u2_.relobj, this->shndx_, | |
579 | address); | |
580 | gold_assert(address != -1U); | |
581 | } | |
5a6f7e2d ILT |
582 | } |
583 | else if (this->u2_.od != NULL) | |
584 | address += this->u2_.od->address(); | |
a3ad94ed | 585 | wr->put_r_offset(address); |
c06b7b0b ILT |
586 | wr->put_r_info(elfcpp::elf_r_info<size>(this->get_symbol_index(), |
587 | this->type_)); | |
588 | } | |
589 | ||
590 | // Write out a Rel relocation. | |
591 | ||
592 | template<bool dynamic, int size, bool big_endian> | |
593 | void | |
594 | Output_reloc<elfcpp::SHT_REL, dynamic, size, big_endian>::write( | |
595 | unsigned char* pov) const | |
596 | { | |
597 | elfcpp::Rel_write<size, big_endian> orel(pov); | |
598 | this->write_rel(&orel); | |
599 | } | |
600 | ||
601 | // Write out a Rela relocation. | |
602 | ||
603 | template<bool dynamic, int size, bool big_endian> | |
604 | void | |
605 | Output_reloc<elfcpp::SHT_RELA, dynamic, size, big_endian>::write( | |
606 | unsigned char* pov) const | |
607 | { | |
608 | elfcpp::Rela_write<size, big_endian> orel(pov); | |
609 | this->rel_.write_rel(&orel); | |
610 | orel.put_r_addend(this->addend_); | |
611 | } | |
612 | ||
613 | // Output_data_reloc_base methods. | |
614 | ||
16649710 ILT |
615 | // Adjust the output section. |
616 | ||
617 | template<int sh_type, bool dynamic, int size, bool big_endian> | |
618 | void | |
619 | Output_data_reloc_base<sh_type, dynamic, size, big_endian> | |
620 | ::do_adjust_output_section(Output_section* os) | |
621 | { | |
622 | if (sh_type == elfcpp::SHT_REL) | |
623 | os->set_entsize(elfcpp::Elf_sizes<size>::rel_size); | |
624 | else if (sh_type == elfcpp::SHT_RELA) | |
625 | os->set_entsize(elfcpp::Elf_sizes<size>::rela_size); | |
626 | else | |
627 | gold_unreachable(); | |
628 | if (dynamic) | |
629 | os->set_should_link_to_dynsym(); | |
630 | else | |
631 | os->set_should_link_to_symtab(); | |
632 | } | |
633 | ||
c06b7b0b ILT |
634 | // Write out relocation data. |
635 | ||
636 | template<int sh_type, bool dynamic, int size, bool big_endian> | |
637 | void | |
638 | Output_data_reloc_base<sh_type, dynamic, size, big_endian>::do_write( | |
639 | Output_file* of) | |
640 | { | |
641 | const off_t off = this->offset(); | |
642 | const off_t oview_size = this->data_size(); | |
643 | unsigned char* const oview = of->get_output_view(off, oview_size); | |
644 | ||
645 | unsigned char* pov = oview; | |
646 | for (typename Relocs::const_iterator p = this->relocs_.begin(); | |
647 | p != this->relocs_.end(); | |
648 | ++p) | |
649 | { | |
650 | p->write(pov); | |
651 | pov += reloc_size; | |
652 | } | |
653 | ||
a3ad94ed | 654 | gold_assert(pov - oview == oview_size); |
c06b7b0b ILT |
655 | |
656 | of->write_output_view(off, oview_size, oview); | |
657 | ||
658 | // We no longer need the relocation entries. | |
659 | this->relocs_.clear(); | |
660 | } | |
661 | ||
dbe717ef | 662 | // Output_data_got::Got_entry methods. |
ead1e424 ILT |
663 | |
664 | // Write out the entry. | |
665 | ||
666 | template<int size, bool big_endian> | |
667 | void | |
7e1edb90 | 668 | Output_data_got<size, big_endian>::Got_entry::write(unsigned char* pov) const |
ead1e424 ILT |
669 | { |
670 | Valtype val = 0; | |
671 | ||
672 | switch (this->local_sym_index_) | |
673 | { | |
674 | case GSYM_CODE: | |
675 | { | |
676 | Symbol* gsym = this->u_.gsym; | |
677 | ||
678 | // If the symbol is resolved locally, we need to write out its | |
679 | // value. Otherwise we just write zero. The target code is | |
680 | // responsible for creating a relocation entry to fill in the | |
d61c6bd4 ILT |
681 | // value at runtime. For non-preemptible symbols in a shared |
682 | // library, the target will need to record whether or not the | |
683 | // value should be written (e.g., it may use a RELATIVE | |
684 | // relocation type). | |
685 | if (gsym->final_value_is_known() || gsym->needs_value_in_got()) | |
ead1e424 ILT |
686 | { |
687 | Sized_symbol<size>* sgsym; | |
688 | // This cast is a bit ugly. We don't want to put a | |
689 | // virtual method in Symbol, because we want Symbol to be | |
690 | // as small as possible. | |
691 | sgsym = static_cast<Sized_symbol<size>*>(gsym); | |
692 | val = sgsym->value(); | |
693 | } | |
694 | } | |
695 | break; | |
696 | ||
697 | case CONSTANT_CODE: | |
698 | val = this->u_.constant; | |
699 | break; | |
700 | ||
701 | default: | |
e727fa71 ILT |
702 | val = this->u_.object->local_symbol_value(this->local_sym_index_); |
703 | break; | |
ead1e424 ILT |
704 | } |
705 | ||
a3ad94ed | 706 | elfcpp::Swap<size, big_endian>::writeval(pov, val); |
ead1e424 ILT |
707 | } |
708 | ||
dbe717ef | 709 | // Output_data_got methods. |
ead1e424 | 710 | |
dbe717ef ILT |
711 | // Add an entry for a global symbol to the GOT. This returns true if |
712 | // this is a new GOT entry, false if the symbol already had a GOT | |
713 | // entry. | |
714 | ||
715 | template<int size, bool big_endian> | |
716 | bool | |
717 | Output_data_got<size, big_endian>::add_global(Symbol* gsym) | |
ead1e424 | 718 | { |
dbe717ef ILT |
719 | if (gsym->has_got_offset()) |
720 | return false; | |
ead1e424 | 721 | |
dbe717ef ILT |
722 | this->entries_.push_back(Got_entry(gsym)); |
723 | this->set_got_size(); | |
724 | gsym->set_got_offset(this->last_got_offset()); | |
725 | return true; | |
726 | } | |
ead1e424 | 727 | |
e727fa71 ILT |
728 | // Add an entry for a local symbol to the GOT. This returns true if |
729 | // this is a new GOT entry, false if the symbol already has a GOT | |
730 | // entry. | |
731 | ||
732 | template<int size, bool big_endian> | |
733 | bool | |
734 | Output_data_got<size, big_endian>::add_local( | |
735 | Sized_relobj<size, big_endian>* object, | |
736 | unsigned int symndx) | |
737 | { | |
738 | if (object->local_has_got_offset(symndx)) | |
739 | return false; | |
07f397ab | 740 | |
e727fa71 ILT |
741 | this->entries_.push_back(Got_entry(object, symndx)); |
742 | this->set_got_size(); | |
743 | object->set_local_got_offset(symndx, this->last_got_offset()); | |
744 | return true; | |
745 | } | |
746 | ||
07f397ab ILT |
747 | // Add an entry (or a pair of entries) for a global TLS symbol to the GOT. |
748 | // In a pair of entries, the first value in the pair will be used for the | |
749 | // module index, and the second value will be used for the dtv-relative | |
750 | // offset. This returns true if this is a new GOT entry, false if the symbol | |
751 | // already has a GOT entry. | |
752 | ||
753 | template<int size, bool big_endian> | |
754 | bool | |
755 | Output_data_got<size, big_endian>::add_global_tls(Symbol* gsym, | |
756 | bool need_pair) | |
757 | { | |
758 | if (gsym->has_tls_got_offset(need_pair)) | |
759 | return false; | |
760 | ||
761 | this->entries_.push_back(Got_entry(gsym)); | |
762 | gsym->set_tls_got_offset(this->last_got_offset(), need_pair); | |
763 | if (need_pair) | |
764 | this->entries_.push_back(Got_entry(gsym)); | |
765 | this->set_got_size(); | |
766 | return true; | |
767 | } | |
768 | ||
769 | // Add an entry (or a pair of entries) for a local TLS symbol to the GOT. | |
770 | // In a pair of entries, the first value in the pair will be used for the | |
771 | // module index, and the second value will be used for the dtv-relative | |
772 | // offset. This returns true if this is a new GOT entry, false if the symbol | |
773 | // already has a GOT entry. | |
774 | ||
775 | template<int size, bool big_endian> | |
776 | bool | |
777 | Output_data_got<size, big_endian>::add_local_tls( | |
778 | Sized_relobj<size, big_endian>* object, | |
779 | unsigned int symndx, | |
780 | bool need_pair) | |
781 | { | |
782 | if (object->local_has_tls_got_offset(symndx, need_pair)) | |
783 | return false; | |
784 | ||
785 | this->entries_.push_back(Got_entry(object, symndx)); | |
786 | object->set_local_tls_got_offset(symndx, this->last_got_offset(), need_pair); | |
787 | if (need_pair) | |
788 | this->entries_.push_back(Got_entry(object, symndx)); | |
789 | this->set_got_size(); | |
790 | return true; | |
791 | } | |
792 | ||
ead1e424 ILT |
793 | // Write out the GOT. |
794 | ||
795 | template<int size, bool big_endian> | |
796 | void | |
dbe717ef | 797 | Output_data_got<size, big_endian>::do_write(Output_file* of) |
ead1e424 ILT |
798 | { |
799 | const int add = size / 8; | |
800 | ||
801 | const off_t off = this->offset(); | |
c06b7b0b | 802 | const off_t oview_size = this->data_size(); |
ead1e424 ILT |
803 | unsigned char* const oview = of->get_output_view(off, oview_size); |
804 | ||
805 | unsigned char* pov = oview; | |
806 | for (typename Got_entries::const_iterator p = this->entries_.begin(); | |
807 | p != this->entries_.end(); | |
808 | ++p) | |
809 | { | |
7e1edb90 | 810 | p->write(pov); |
ead1e424 ILT |
811 | pov += add; |
812 | } | |
813 | ||
a3ad94ed | 814 | gold_assert(pov - oview == oview_size); |
c06b7b0b | 815 | |
ead1e424 ILT |
816 | of->write_output_view(off, oview_size, oview); |
817 | ||
818 | // We no longer need the GOT entries. | |
819 | this->entries_.clear(); | |
820 | } | |
821 | ||
a3ad94ed ILT |
822 | // Output_data_dynamic::Dynamic_entry methods. |
823 | ||
824 | // Write out the entry. | |
825 | ||
826 | template<int size, bool big_endian> | |
827 | void | |
828 | Output_data_dynamic::Dynamic_entry::write( | |
829 | unsigned char* pov, | |
1ddbd1e6 ILT |
830 | const Stringpool* pool |
831 | ACCEPT_SIZE_ENDIAN) const | |
a3ad94ed ILT |
832 | { |
833 | typename elfcpp::Elf_types<size>::Elf_WXword val; | |
834 | switch (this->classification_) | |
835 | { | |
836 | case DYNAMIC_NUMBER: | |
837 | val = this->u_.val; | |
838 | break; | |
839 | ||
840 | case DYNAMIC_SECTION_ADDRESS: | |
16649710 | 841 | val = this->u_.od->address(); |
a3ad94ed ILT |
842 | break; |
843 | ||
844 | case DYNAMIC_SECTION_SIZE: | |
16649710 | 845 | val = this->u_.od->data_size(); |
a3ad94ed ILT |
846 | break; |
847 | ||
848 | case DYNAMIC_SYMBOL: | |
849 | { | |
16649710 ILT |
850 | const Sized_symbol<size>* s = |
851 | static_cast<const Sized_symbol<size>*>(this->u_.sym); | |
a3ad94ed ILT |
852 | val = s->value(); |
853 | } | |
854 | break; | |
855 | ||
856 | case DYNAMIC_STRING: | |
857 | val = pool->get_offset(this->u_.str); | |
858 | break; | |
859 | ||
860 | default: | |
861 | gold_unreachable(); | |
862 | } | |
863 | ||
864 | elfcpp::Dyn_write<size, big_endian> dw(pov); | |
865 | dw.put_d_tag(this->tag_); | |
866 | dw.put_d_val(val); | |
867 | } | |
868 | ||
869 | // Output_data_dynamic methods. | |
870 | ||
16649710 ILT |
871 | // Adjust the output section to set the entry size. |
872 | ||
873 | void | |
874 | Output_data_dynamic::do_adjust_output_section(Output_section* os) | |
875 | { | |
9025d29d | 876 | if (parameters->get_size() == 32) |
16649710 | 877 | os->set_entsize(elfcpp::Elf_sizes<32>::dyn_size); |
9025d29d | 878 | else if (parameters->get_size() == 64) |
16649710 ILT |
879 | os->set_entsize(elfcpp::Elf_sizes<64>::dyn_size); |
880 | else | |
881 | gold_unreachable(); | |
882 | } | |
883 | ||
a3ad94ed ILT |
884 | // Set the final data size. |
885 | ||
886 | void | |
27bc2bce | 887 | Output_data_dynamic::set_final_data_size() |
a3ad94ed ILT |
888 | { |
889 | // Add the terminating entry. | |
890 | this->add_constant(elfcpp::DT_NULL, 0); | |
891 | ||
892 | int dyn_size; | |
9025d29d | 893 | if (parameters->get_size() == 32) |
a3ad94ed | 894 | dyn_size = elfcpp::Elf_sizes<32>::dyn_size; |
9025d29d | 895 | else if (parameters->get_size() == 64) |
a3ad94ed ILT |
896 | dyn_size = elfcpp::Elf_sizes<64>::dyn_size; |
897 | else | |
898 | gold_unreachable(); | |
899 | this->set_data_size(this->entries_.size() * dyn_size); | |
900 | } | |
901 | ||
902 | // Write out the dynamic entries. | |
903 | ||
904 | void | |
905 | Output_data_dynamic::do_write(Output_file* of) | |
906 | { | |
9025d29d | 907 | if (parameters->get_size() == 32) |
a3ad94ed | 908 | { |
9025d29d ILT |
909 | if (parameters->is_big_endian()) |
910 | { | |
911 | #ifdef HAVE_TARGET_32_BIG | |
912 | this->sized_write<32, true>(of); | |
913 | #else | |
914 | gold_unreachable(); | |
915 | #endif | |
916 | } | |
a3ad94ed | 917 | else |
9025d29d ILT |
918 | { |
919 | #ifdef HAVE_TARGET_32_LITTLE | |
920 | this->sized_write<32, false>(of); | |
921 | #else | |
922 | gold_unreachable(); | |
923 | #endif | |
924 | } | |
a3ad94ed | 925 | } |
9025d29d | 926 | else if (parameters->get_size() == 64) |
a3ad94ed | 927 | { |
9025d29d ILT |
928 | if (parameters->is_big_endian()) |
929 | { | |
930 | #ifdef HAVE_TARGET_64_BIG | |
931 | this->sized_write<64, true>(of); | |
932 | #else | |
933 | gold_unreachable(); | |
934 | #endif | |
935 | } | |
a3ad94ed | 936 | else |
9025d29d ILT |
937 | { |
938 | #ifdef HAVE_TARGET_64_LITTLE | |
939 | this->sized_write<64, false>(of); | |
940 | #else | |
941 | gold_unreachable(); | |
942 | #endif | |
943 | } | |
a3ad94ed ILT |
944 | } |
945 | else | |
946 | gold_unreachable(); | |
947 | } | |
948 | ||
949 | template<int size, bool big_endian> | |
950 | void | |
951 | Output_data_dynamic::sized_write(Output_file* of) | |
952 | { | |
953 | const int dyn_size = elfcpp::Elf_sizes<size>::dyn_size; | |
954 | ||
955 | const off_t offset = this->offset(); | |
956 | const off_t oview_size = this->data_size(); | |
957 | unsigned char* const oview = of->get_output_view(offset, oview_size); | |
958 | ||
959 | unsigned char* pov = oview; | |
960 | for (typename Dynamic_entries::const_iterator p = this->entries_.begin(); | |
961 | p != this->entries_.end(); | |
962 | ++p) | |
963 | { | |
1ddbd1e6 ILT |
964 | p->write SELECT_SIZE_ENDIAN_NAME(size, big_endian)( |
965 | pov, this->pool_ SELECT_SIZE_ENDIAN(size, big_endian)); | |
a3ad94ed ILT |
966 | pov += dyn_size; |
967 | } | |
968 | ||
969 | gold_assert(pov - oview == oview_size); | |
970 | ||
971 | of->write_output_view(offset, oview_size, oview); | |
972 | ||
973 | // We no longer need the dynamic entries. | |
974 | this->entries_.clear(); | |
975 | } | |
976 | ||
ead1e424 ILT |
977 | // Output_section::Input_section methods. |
978 | ||
979 | // Return the data size. For an input section we store the size here. | |
980 | // For an Output_section_data, we have to ask it for the size. | |
981 | ||
982 | off_t | |
983 | Output_section::Input_section::data_size() const | |
984 | { | |
985 | if (this->is_input_section()) | |
b8e6aad9 | 986 | return this->u1_.data_size; |
ead1e424 | 987 | else |
b8e6aad9 | 988 | return this->u2_.posd->data_size(); |
ead1e424 ILT |
989 | } |
990 | ||
991 | // Set the address and file offset. | |
992 | ||
993 | void | |
96803768 ILT |
994 | Output_section::Input_section::set_address_and_file_offset( |
995 | uint64_t address, | |
996 | off_t file_offset, | |
997 | off_t section_file_offset) | |
ead1e424 ILT |
998 | { |
999 | if (this->is_input_section()) | |
96803768 ILT |
1000 | this->u2_.object->set_section_offset(this->shndx_, |
1001 | file_offset - section_file_offset); | |
ead1e424 | 1002 | else |
96803768 ILT |
1003 | this->u2_.posd->set_address_and_file_offset(address, file_offset); |
1004 | } | |
1005 | ||
1006 | // Finalize the data size. | |
1007 | ||
1008 | void | |
1009 | Output_section::Input_section::finalize_data_size() | |
1010 | { | |
1011 | if (!this->is_input_section()) | |
1012 | this->u2_.posd->finalize_data_size(); | |
b8e6aad9 ILT |
1013 | } |
1014 | ||
730cdc88 | 1015 | // Try to turn an input offset into an output offset. |
b8e6aad9 ILT |
1016 | |
1017 | bool | |
730cdc88 ILT |
1018 | Output_section::Input_section::output_offset(const Relobj* object, |
1019 | unsigned int shndx, | |
1020 | off_t offset, | |
1021 | off_t *poutput) const | |
b8e6aad9 ILT |
1022 | { |
1023 | if (!this->is_input_section()) | |
730cdc88 | 1024 | return this->u2_.posd->output_offset(object, shndx, offset, poutput); |
b8e6aad9 ILT |
1025 | else |
1026 | { | |
730cdc88 | 1027 | if (this->shndx_ != shndx || this->u2_.object != object) |
b8e6aad9 ILT |
1028 | return false; |
1029 | off_t output_offset; | |
1030 | Output_section* os = object->output_section(shndx, &output_offset); | |
1031 | gold_assert(os != NULL); | |
730cdc88 ILT |
1032 | gold_assert(output_offset != -1); |
1033 | *poutput = output_offset + offset; | |
b8e6aad9 ILT |
1034 | return true; |
1035 | } | |
ead1e424 ILT |
1036 | } |
1037 | ||
1038 | // Write out the data. We don't have to do anything for an input | |
1039 | // section--they are handled via Object::relocate--but this is where | |
1040 | // we write out the data for an Output_section_data. | |
1041 | ||
1042 | void | |
1043 | Output_section::Input_section::write(Output_file* of) | |
1044 | { | |
1045 | if (!this->is_input_section()) | |
b8e6aad9 | 1046 | this->u2_.posd->write(of); |
ead1e424 ILT |
1047 | } |
1048 | ||
96803768 ILT |
1049 | // Write the data to a buffer. As for write(), we don't have to do |
1050 | // anything for an input section. | |
1051 | ||
1052 | void | |
1053 | Output_section::Input_section::write_to_buffer(unsigned char* buffer) | |
1054 | { | |
1055 | if (!this->is_input_section()) | |
1056 | this->u2_.posd->write_to_buffer(buffer); | |
1057 | } | |
1058 | ||
a2fb1b05 ILT |
1059 | // Output_section methods. |
1060 | ||
1061 | // Construct an Output_section. NAME will point into a Stringpool. | |
1062 | ||
96803768 | 1063 | Output_section::Output_section(const char* name, elfcpp::Elf_Word type, |
b8e6aad9 | 1064 | elfcpp::Elf_Xword flags) |
96803768 | 1065 | : name_(name), |
a2fb1b05 ILT |
1066 | addralign_(0), |
1067 | entsize_(0), | |
16649710 | 1068 | link_section_(NULL), |
a2fb1b05 | 1069 | link_(0), |
16649710 | 1070 | info_section_(NULL), |
a2fb1b05 ILT |
1071 | info_(0), |
1072 | type_(type), | |
61ba1cf9 | 1073 | flags_(flags), |
91ea499d | 1074 | out_shndx_(-1U), |
c06b7b0b ILT |
1075 | symtab_index_(0), |
1076 | dynsym_index_(0), | |
ead1e424 ILT |
1077 | input_sections_(), |
1078 | first_input_offset_(0), | |
c51e6221 | 1079 | fills_(), |
96803768 | 1080 | postprocessing_buffer_(NULL), |
a3ad94ed | 1081 | needs_symtab_index_(false), |
16649710 ILT |
1082 | needs_dynsym_index_(false), |
1083 | should_link_to_symtab_(false), | |
730cdc88 | 1084 | should_link_to_dynsym_(false), |
27bc2bce ILT |
1085 | after_input_sections_(false), |
1086 | requires_postprocessing_(false) | |
a2fb1b05 | 1087 | { |
27bc2bce ILT |
1088 | // An unallocated section has no address. Forcing this means that |
1089 | // we don't need special treatment for symbols defined in debug | |
1090 | // sections. | |
1091 | if ((flags & elfcpp::SHF_ALLOC) == 0) | |
1092 | this->set_address(0); | |
a2fb1b05 ILT |
1093 | } |
1094 | ||
54dc6425 ILT |
1095 | Output_section::~Output_section() |
1096 | { | |
1097 | } | |
1098 | ||
16649710 ILT |
1099 | // Set the entry size. |
1100 | ||
1101 | void | |
1102 | Output_section::set_entsize(uint64_t v) | |
1103 | { | |
1104 | if (this->entsize_ == 0) | |
1105 | this->entsize_ = v; | |
1106 | else | |
1107 | gold_assert(this->entsize_ == v); | |
1108 | } | |
1109 | ||
ead1e424 | 1110 | // Add the input section SHNDX, with header SHDR, named SECNAME, in |
730cdc88 ILT |
1111 | // OBJECT, to the Output_section. RELOC_SHNDX is the index of a |
1112 | // relocation section which applies to this section, or 0 if none, or | |
1113 | // -1U if more than one. Return the offset of the input section | |
1114 | // within the output section. Return -1 if the input section will | |
1115 | // receive special handling. In the normal case we don't always keep | |
1116 | // track of input sections for an Output_section. Instead, each | |
1117 | // Object keeps track of the Output_section for each of its input | |
1118 | // sections. | |
a2fb1b05 ILT |
1119 | |
1120 | template<int size, bool big_endian> | |
1121 | off_t | |
730cdc88 ILT |
1122 | Output_section::add_input_section(Sized_relobj<size, big_endian>* object, |
1123 | unsigned int shndx, | |
ead1e424 | 1124 | const char* secname, |
730cdc88 ILT |
1125 | const elfcpp::Shdr<size, big_endian>& shdr, |
1126 | unsigned int reloc_shndx) | |
a2fb1b05 ILT |
1127 | { |
1128 | elfcpp::Elf_Xword addralign = shdr.get_sh_addralign(); | |
1129 | if ((addralign & (addralign - 1)) != 0) | |
1130 | { | |
75f2446e ILT |
1131 | object->error(_("invalid alignment %lu for section \"%s\""), |
1132 | static_cast<unsigned long>(addralign), secname); | |
1133 | addralign = 1; | |
a2fb1b05 | 1134 | } |
a2fb1b05 ILT |
1135 | |
1136 | if (addralign > this->addralign_) | |
1137 | this->addralign_ = addralign; | |
1138 | ||
44a43cf9 | 1139 | typename elfcpp::Elf_types<size>::Elf_WXword sh_flags = shdr.get_sh_flags(); |
4f833eee | 1140 | uint64_t entsize = shdr.get_sh_entsize(); |
44a43cf9 ILT |
1141 | |
1142 | // .debug_str is a mergeable string section, but is not always so | |
1143 | // marked by compilers. Mark manually here so we can optimize. | |
1144 | if (strcmp(secname, ".debug_str") == 0) | |
4f833eee ILT |
1145 | { |
1146 | sh_flags |= (elfcpp::SHF_MERGE | elfcpp::SHF_STRINGS); | |
1147 | entsize = 1; | |
1148 | } | |
44a43cf9 | 1149 | |
b8e6aad9 | 1150 | // If this is a SHF_MERGE section, we pass all the input sections to |
730cdc88 ILT |
1151 | // a Output_data_merge. We don't try to handle relocations for such |
1152 | // a section. | |
44a43cf9 | 1153 | if ((sh_flags & elfcpp::SHF_MERGE) != 0 |
730cdc88 | 1154 | && reloc_shndx == 0) |
b8e6aad9 | 1155 | { |
44a43cf9 | 1156 | if (this->add_merge_input_section(object, shndx, sh_flags, |
96803768 | 1157 | entsize, addralign)) |
b8e6aad9 ILT |
1158 | { |
1159 | // Tell the relocation routines that they need to call the | |
730cdc88 | 1160 | // output_offset method to determine the final address. |
b8e6aad9 ILT |
1161 | return -1; |
1162 | } | |
1163 | } | |
1164 | ||
27bc2bce | 1165 | off_t offset_in_section = this->current_data_size_for_child(); |
c51e6221 ILT |
1166 | off_t aligned_offset_in_section = align_address(offset_in_section, |
1167 | addralign); | |
1168 | ||
1169 | if (aligned_offset_in_section > offset_in_section | |
44a43cf9 | 1170 | && (sh_flags & elfcpp::SHF_EXECINSTR) != 0 |
c51e6221 ILT |
1171 | && object->target()->has_code_fill()) |
1172 | { | |
1173 | // We need to add some fill data. Using fill_list_ when | |
1174 | // possible is an optimization, since we will often have fill | |
1175 | // sections without input sections. | |
1176 | off_t fill_len = aligned_offset_in_section - offset_in_section; | |
1177 | if (this->input_sections_.empty()) | |
1178 | this->fills_.push_back(Fill(offset_in_section, fill_len)); | |
1179 | else | |
1180 | { | |
1181 | // FIXME: When relaxing, the size needs to adjust to | |
1182 | // maintain a constant alignment. | |
1183 | std::string fill_data(object->target()->code_fill(fill_len)); | |
1184 | Output_data_const* odc = new Output_data_const(fill_data, 1); | |
1185 | this->input_sections_.push_back(Input_section(odc)); | |
1186 | } | |
1187 | } | |
1188 | ||
27bc2bce ILT |
1189 | this->set_current_data_size_for_child(aligned_offset_in_section |
1190 | + shdr.get_sh_size()); | |
a2fb1b05 | 1191 | |
ead1e424 ILT |
1192 | // We need to keep track of this section if we are already keeping |
1193 | // track of sections, or if we are relaxing. FIXME: Add test for | |
1194 | // relaxing. | |
c51e6221 | 1195 | if (!this->input_sections_.empty()) |
ead1e424 ILT |
1196 | this->input_sections_.push_back(Input_section(object, shndx, |
1197 | shdr.get_sh_size(), | |
1198 | addralign)); | |
54dc6425 | 1199 | |
c51e6221 | 1200 | return aligned_offset_in_section; |
61ba1cf9 ILT |
1201 | } |
1202 | ||
ead1e424 ILT |
1203 | // Add arbitrary data to an output section. |
1204 | ||
1205 | void | |
1206 | Output_section::add_output_section_data(Output_section_data* posd) | |
1207 | { | |
b8e6aad9 ILT |
1208 | Input_section inp(posd); |
1209 | this->add_output_section_data(&inp); | |
1210 | } | |
1211 | ||
1212 | // Add arbitrary data to an output section by Input_section. | |
c06b7b0b | 1213 | |
b8e6aad9 ILT |
1214 | void |
1215 | Output_section::add_output_section_data(Input_section* inp) | |
1216 | { | |
ead1e424 | 1217 | if (this->input_sections_.empty()) |
27bc2bce | 1218 | this->first_input_offset_ = this->current_data_size_for_child(); |
c06b7b0b | 1219 | |
b8e6aad9 | 1220 | this->input_sections_.push_back(*inp); |
c06b7b0b | 1221 | |
b8e6aad9 | 1222 | uint64_t addralign = inp->addralign(); |
ead1e424 ILT |
1223 | if (addralign > this->addralign_) |
1224 | this->addralign_ = addralign; | |
c06b7b0b | 1225 | |
b8e6aad9 ILT |
1226 | inp->set_output_section(this); |
1227 | } | |
1228 | ||
1229 | // Add a merge section to an output section. | |
1230 | ||
1231 | void | |
1232 | Output_section::add_output_merge_section(Output_section_data* posd, | |
1233 | bool is_string, uint64_t entsize) | |
1234 | { | |
1235 | Input_section inp(posd, is_string, entsize); | |
1236 | this->add_output_section_data(&inp); | |
1237 | } | |
1238 | ||
1239 | // Add an input section to a SHF_MERGE section. | |
1240 | ||
1241 | bool | |
1242 | Output_section::add_merge_input_section(Relobj* object, unsigned int shndx, | |
1243 | uint64_t flags, uint64_t entsize, | |
96803768 | 1244 | uint64_t addralign) |
b8e6aad9 | 1245 | { |
87f95776 ILT |
1246 | bool is_string = (flags & elfcpp::SHF_STRINGS) != 0; |
1247 | ||
1248 | // We only merge strings if the alignment is not more than the | |
1249 | // character size. This could be handled, but it's unusual. | |
1250 | if (is_string && addralign > entsize) | |
b8e6aad9 ILT |
1251 | return false; |
1252 | ||
b8e6aad9 ILT |
1253 | Input_section_list::iterator p; |
1254 | for (p = this->input_sections_.begin(); | |
1255 | p != this->input_sections_.end(); | |
1256 | ++p) | |
87f95776 | 1257 | if (p->is_merge_section(is_string, entsize, addralign)) |
9a0910c3 ILT |
1258 | { |
1259 | p->add_input_section(object, shndx); | |
1260 | return true; | |
1261 | } | |
b8e6aad9 ILT |
1262 | |
1263 | // We handle the actual constant merging in Output_merge_data or | |
1264 | // Output_merge_string_data. | |
9a0910c3 ILT |
1265 | Output_section_data* posd; |
1266 | if (!is_string) | |
1267 | posd = new Output_merge_data(entsize, addralign); | |
b8e6aad9 ILT |
1268 | else |
1269 | { | |
9a0910c3 ILT |
1270 | switch (entsize) |
1271 | { | |
1272 | case 1: | |
1273 | posd = new Output_merge_string<char>(addralign); | |
1274 | break; | |
1275 | case 2: | |
1276 | posd = new Output_merge_string<uint16_t>(addralign); | |
1277 | break; | |
1278 | case 4: | |
1279 | posd = new Output_merge_string<uint32_t>(addralign); | |
1280 | break; | |
1281 | default: | |
1282 | return false; | |
1283 | } | |
b8e6aad9 ILT |
1284 | } |
1285 | ||
9a0910c3 ILT |
1286 | this->add_output_merge_section(posd, is_string, entsize); |
1287 | posd->add_input_section(object, shndx); | |
1288 | ||
b8e6aad9 ILT |
1289 | return true; |
1290 | } | |
1291 | ||
730cdc88 ILT |
1292 | // Given an address OFFSET relative to the start of input section |
1293 | // SHNDX in OBJECT, return whether this address is being included in | |
1294 | // the final link. This should only be called if SHNDX in OBJECT has | |
1295 | // a special mapping. | |
1296 | ||
1297 | bool | |
1298 | Output_section::is_input_address_mapped(const Relobj* object, | |
1299 | unsigned int shndx, | |
1300 | off_t offset) const | |
1301 | { | |
1302 | gold_assert(object->is_section_specially_mapped(shndx)); | |
1303 | ||
1304 | for (Input_section_list::const_iterator p = this->input_sections_.begin(); | |
1305 | p != this->input_sections_.end(); | |
1306 | ++p) | |
1307 | { | |
1308 | off_t output_offset; | |
1309 | if (p->output_offset(object, shndx, offset, &output_offset)) | |
1310 | return output_offset != -1; | |
1311 | } | |
1312 | ||
1313 | // By default we assume that the address is mapped. This should | |
1314 | // only be called after we have passed all sections to Layout. At | |
1315 | // that point we should know what we are discarding. | |
1316 | return true; | |
1317 | } | |
1318 | ||
1319 | // Given an address OFFSET relative to the start of input section | |
1320 | // SHNDX in object OBJECT, return the output offset relative to the | |
1321 | // start of the section. This should only be called if SHNDX in | |
1322 | // OBJECT has a special mapping. | |
1323 | ||
1324 | off_t | |
1325 | Output_section::output_offset(const Relobj* object, unsigned int shndx, | |
1326 | off_t offset) const | |
1327 | { | |
1328 | gold_assert(object->is_section_specially_mapped(shndx)); | |
1329 | // This can only be called meaningfully when layout is complete. | |
1330 | gold_assert(Output_data::is_layout_complete()); | |
1331 | ||
1332 | for (Input_section_list::const_iterator p = this->input_sections_.begin(); | |
1333 | p != this->input_sections_.end(); | |
1334 | ++p) | |
1335 | { | |
1336 | off_t output_offset; | |
1337 | if (p->output_offset(object, shndx, offset, &output_offset)) | |
1338 | return output_offset; | |
1339 | } | |
1340 | gold_unreachable(); | |
1341 | } | |
1342 | ||
b8e6aad9 ILT |
1343 | // Return the output virtual address of OFFSET relative to the start |
1344 | // of input section SHNDX in object OBJECT. | |
1345 | ||
1346 | uint64_t | |
1347 | Output_section::output_address(const Relobj* object, unsigned int shndx, | |
1348 | off_t offset) const | |
1349 | { | |
730cdc88 ILT |
1350 | gold_assert(object->is_section_specially_mapped(shndx)); |
1351 | // This can only be called meaningfully when layout is complete. | |
1352 | gold_assert(Output_data::is_layout_complete()); | |
1353 | ||
b8e6aad9 ILT |
1354 | uint64_t addr = this->address() + this->first_input_offset_; |
1355 | for (Input_section_list::const_iterator p = this->input_sections_.begin(); | |
1356 | p != this->input_sections_.end(); | |
1357 | ++p) | |
1358 | { | |
1359 | addr = align_address(addr, p->addralign()); | |
730cdc88 ILT |
1360 | off_t output_offset; |
1361 | if (p->output_offset(object, shndx, offset, &output_offset)) | |
1362 | { | |
1363 | if (output_offset == -1) | |
1364 | return -1U; | |
1365 | return addr + output_offset; | |
1366 | } | |
b8e6aad9 ILT |
1367 | addr += p->data_size(); |
1368 | } | |
1369 | ||
1370 | // If we get here, it means that we don't know the mapping for this | |
1371 | // input section. This might happen in principle if | |
1372 | // add_input_section were called before add_output_section_data. | |
1373 | // But it should never actually happen. | |
1374 | ||
1375 | gold_unreachable(); | |
ead1e424 ILT |
1376 | } |
1377 | ||
27bc2bce | 1378 | // Set the data size of an Output_section. This is where we handle |
ead1e424 ILT |
1379 | // setting the addresses of any Output_section_data objects. |
1380 | ||
1381 | void | |
27bc2bce | 1382 | Output_section::set_final_data_size() |
ead1e424 ILT |
1383 | { |
1384 | if (this->input_sections_.empty()) | |
27bc2bce ILT |
1385 | { |
1386 | this->set_data_size(this->current_data_size_for_child()); | |
1387 | return; | |
1388 | } | |
ead1e424 | 1389 | |
27bc2bce ILT |
1390 | uint64_t address = this->address(); |
1391 | off_t startoff = this->offset(); | |
ead1e424 ILT |
1392 | off_t off = startoff + this->first_input_offset_; |
1393 | for (Input_section_list::iterator p = this->input_sections_.begin(); | |
1394 | p != this->input_sections_.end(); | |
1395 | ++p) | |
1396 | { | |
1397 | off = align_address(off, p->addralign()); | |
96803768 ILT |
1398 | p->set_address_and_file_offset(address + (off - startoff), off, |
1399 | startoff); | |
ead1e424 ILT |
1400 | off += p->data_size(); |
1401 | } | |
1402 | ||
1403 | this->set_data_size(off - startoff); | |
1404 | } | |
9a0910c3 | 1405 | |
61ba1cf9 ILT |
1406 | // Write the section header to *OSHDR. |
1407 | ||
1408 | template<int size, bool big_endian> | |
1409 | void | |
16649710 ILT |
1410 | Output_section::write_header(const Layout* layout, |
1411 | const Stringpool* secnamepool, | |
61ba1cf9 ILT |
1412 | elfcpp::Shdr_write<size, big_endian>* oshdr) const |
1413 | { | |
1414 | oshdr->put_sh_name(secnamepool->get_offset(this->name_)); | |
1415 | oshdr->put_sh_type(this->type_); | |
1416 | oshdr->put_sh_flags(this->flags_); | |
1417 | oshdr->put_sh_addr(this->address()); | |
1418 | oshdr->put_sh_offset(this->offset()); | |
1419 | oshdr->put_sh_size(this->data_size()); | |
16649710 ILT |
1420 | if (this->link_section_ != NULL) |
1421 | oshdr->put_sh_link(this->link_section_->out_shndx()); | |
1422 | else if (this->should_link_to_symtab_) | |
1423 | oshdr->put_sh_link(layout->symtab_section()->out_shndx()); | |
1424 | else if (this->should_link_to_dynsym_) | |
1425 | oshdr->put_sh_link(layout->dynsym_section()->out_shndx()); | |
1426 | else | |
1427 | oshdr->put_sh_link(this->link_); | |
1428 | if (this->info_section_ != NULL) | |
1429 | oshdr->put_sh_info(this->info_section_->out_shndx()); | |
1430 | else | |
1431 | oshdr->put_sh_info(this->info_); | |
61ba1cf9 ILT |
1432 | oshdr->put_sh_addralign(this->addralign_); |
1433 | oshdr->put_sh_entsize(this->entsize_); | |
a2fb1b05 ILT |
1434 | } |
1435 | ||
ead1e424 ILT |
1436 | // Write out the data. For input sections the data is written out by |
1437 | // Object::relocate, but we have to handle Output_section_data objects | |
1438 | // here. | |
1439 | ||
1440 | void | |
1441 | Output_section::do_write(Output_file* of) | |
1442 | { | |
96803768 ILT |
1443 | gold_assert(!this->requires_postprocessing()); |
1444 | ||
c51e6221 ILT |
1445 | off_t output_section_file_offset = this->offset(); |
1446 | for (Fill_list::iterator p = this->fills_.begin(); | |
1447 | p != this->fills_.end(); | |
1448 | ++p) | |
1449 | { | |
1450 | std::string fill_data(of->target()->code_fill(p->length())); | |
1451 | of->write(output_section_file_offset + p->section_offset(), | |
1452 | fill_data.data(), fill_data.size()); | |
1453 | } | |
1454 | ||
ead1e424 ILT |
1455 | for (Input_section_list::iterator p = this->input_sections_.begin(); |
1456 | p != this->input_sections_.end(); | |
1457 | ++p) | |
1458 | p->write(of); | |
1459 | } | |
1460 | ||
96803768 ILT |
1461 | // If a section requires postprocessing, create the buffer to use. |
1462 | ||
1463 | void | |
1464 | Output_section::create_postprocessing_buffer() | |
1465 | { | |
1466 | gold_assert(this->requires_postprocessing()); | |
1467 | gold_assert(this->postprocessing_buffer_ == NULL); | |
1468 | ||
1469 | if (!this->input_sections_.empty()) | |
1470 | { | |
1471 | off_t off = this->first_input_offset_; | |
1472 | for (Input_section_list::iterator p = this->input_sections_.begin(); | |
1473 | p != this->input_sections_.end(); | |
1474 | ++p) | |
1475 | { | |
1476 | off = align_address(off, p->addralign()); | |
1477 | p->finalize_data_size(); | |
1478 | off += p->data_size(); | |
1479 | } | |
1480 | this->set_current_data_size_for_child(off); | |
1481 | } | |
1482 | ||
1483 | off_t buffer_size = this->current_data_size_for_child(); | |
1484 | this->postprocessing_buffer_ = new unsigned char[buffer_size]; | |
1485 | } | |
1486 | ||
1487 | // Write all the data of an Output_section into the postprocessing | |
1488 | // buffer. This is used for sections which require postprocessing, | |
1489 | // such as compression. Input sections are handled by | |
1490 | // Object::Relocate. | |
1491 | ||
1492 | void | |
1493 | Output_section::write_to_postprocessing_buffer() | |
1494 | { | |
1495 | gold_assert(this->requires_postprocessing()); | |
1496 | ||
1497 | Target* target = parameters->target(); | |
1498 | unsigned char* buffer = this->postprocessing_buffer(); | |
1499 | for (Fill_list::iterator p = this->fills_.begin(); | |
1500 | p != this->fills_.end(); | |
1501 | ++p) | |
1502 | { | |
1503 | std::string fill_data(target->code_fill(p->length())); | |
1504 | memcpy(buffer + p->section_offset(), fill_data.data(), fill_data.size()); | |
1505 | } | |
1506 | ||
1507 | off_t off = this->first_input_offset_; | |
1508 | for (Input_section_list::iterator p = this->input_sections_.begin(); | |
1509 | p != this->input_sections_.end(); | |
1510 | ++p) | |
1511 | { | |
1512 | off = align_address(off, p->addralign()); | |
1513 | p->write_to_buffer(buffer + off); | |
1514 | off += p->data_size(); | |
1515 | } | |
1516 | } | |
1517 | ||
a2fb1b05 ILT |
1518 | // Output segment methods. |
1519 | ||
1520 | Output_segment::Output_segment(elfcpp::Elf_Word type, elfcpp::Elf_Word flags) | |
54dc6425 | 1521 | : output_data_(), |
75f65a3e | 1522 | output_bss_(), |
a2fb1b05 ILT |
1523 | vaddr_(0), |
1524 | paddr_(0), | |
1525 | memsz_(0), | |
1526 | align_(0), | |
1527 | offset_(0), | |
1528 | filesz_(0), | |
1529 | type_(type), | |
ead1e424 ILT |
1530 | flags_(flags), |
1531 | is_align_known_(false) | |
a2fb1b05 ILT |
1532 | { |
1533 | } | |
1534 | ||
1535 | // Add an Output_section to an Output_segment. | |
1536 | ||
1537 | void | |
75f65a3e | 1538 | Output_segment::add_output_section(Output_section* os, |
dbe717ef ILT |
1539 | elfcpp::Elf_Word seg_flags, |
1540 | bool front) | |
a2fb1b05 | 1541 | { |
a3ad94ed ILT |
1542 | gold_assert((os->flags() & elfcpp::SHF_ALLOC) != 0); |
1543 | gold_assert(!this->is_align_known_); | |
75f65a3e | 1544 | |
ead1e424 | 1545 | // Update the segment flags. |
75f65a3e | 1546 | this->flags_ |= seg_flags; |
75f65a3e ILT |
1547 | |
1548 | Output_segment::Output_data_list* pdl; | |
1549 | if (os->type() == elfcpp::SHT_NOBITS) | |
1550 | pdl = &this->output_bss_; | |
1551 | else | |
1552 | pdl = &this->output_data_; | |
54dc6425 | 1553 | |
a2fb1b05 ILT |
1554 | // So that PT_NOTE segments will work correctly, we need to ensure |
1555 | // that all SHT_NOTE sections are adjacent. This will normally | |
1556 | // happen automatically, because all the SHT_NOTE input sections | |
1557 | // will wind up in the same output section. However, it is possible | |
1558 | // for multiple SHT_NOTE input sections to have different section | |
1559 | // flags, and thus be in different output sections, but for the | |
1560 | // different section flags to map into the same segment flags and | |
1561 | // thus the same output segment. | |
54dc6425 ILT |
1562 | |
1563 | // Note that while there may be many input sections in an output | |
1564 | // section, there are normally only a few output sections in an | |
1565 | // output segment. This loop is expected to be fast. | |
1566 | ||
61ba1cf9 | 1567 | if (os->type() == elfcpp::SHT_NOTE && !pdl->empty()) |
a2fb1b05 | 1568 | { |
a3ad94ed | 1569 | Output_segment::Output_data_list::iterator p = pdl->end(); |
75f65a3e | 1570 | do |
54dc6425 | 1571 | { |
75f65a3e | 1572 | --p; |
54dc6425 ILT |
1573 | if ((*p)->is_section_type(elfcpp::SHT_NOTE)) |
1574 | { | |
dbe717ef | 1575 | // We don't worry about the FRONT parameter. |
54dc6425 | 1576 | ++p; |
75f65a3e | 1577 | pdl->insert(p, os); |
54dc6425 ILT |
1578 | return; |
1579 | } | |
1580 | } | |
75f65a3e | 1581 | while (p != pdl->begin()); |
54dc6425 ILT |
1582 | } |
1583 | ||
1584 | // Similarly, so that PT_TLS segments will work, we need to group | |
75f65a3e ILT |
1585 | // SHF_TLS sections. An SHF_TLS/SHT_NOBITS section is a special |
1586 | // case: we group the SHF_TLS/SHT_NOBITS sections right after the | |
1587 | // SHF_TLS/SHT_PROGBITS sections. This lets us set up PT_TLS | |
07f397ab ILT |
1588 | // correctly. SHF_TLS sections get added to both a PT_LOAD segment |
1589 | // and the PT_TLS segment -- we do this grouping only for the | |
1590 | // PT_LOAD segment. | |
1591 | if (this->type_ != elfcpp::PT_TLS | |
1592 | && (os->flags() & elfcpp::SHF_TLS) != 0 | |
1593 | && !this->output_data_.empty()) | |
54dc6425 | 1594 | { |
75f65a3e ILT |
1595 | pdl = &this->output_data_; |
1596 | bool nobits = os->type() == elfcpp::SHT_NOBITS; | |
ead1e424 | 1597 | bool sawtls = false; |
a3ad94ed | 1598 | Output_segment::Output_data_list::iterator p = pdl->end(); |
75f65a3e | 1599 | do |
a2fb1b05 | 1600 | { |
75f65a3e | 1601 | --p; |
ead1e424 ILT |
1602 | bool insert; |
1603 | if ((*p)->is_section_flag_set(elfcpp::SHF_TLS)) | |
1604 | { | |
1605 | sawtls = true; | |
1606 | // Put a NOBITS section after the first TLS section. | |
1607 | // But a PROGBITS section after the first TLS/PROGBITS | |
1608 | // section. | |
1609 | insert = nobits || !(*p)->is_section_type(elfcpp::SHT_NOBITS); | |
1610 | } | |
1611 | else | |
1612 | { | |
1613 | // If we've gone past the TLS sections, but we've seen a | |
1614 | // TLS section, then we need to insert this section now. | |
1615 | insert = sawtls; | |
1616 | } | |
1617 | ||
1618 | if (insert) | |
a2fb1b05 | 1619 | { |
dbe717ef | 1620 | // We don't worry about the FRONT parameter. |
a2fb1b05 | 1621 | ++p; |
75f65a3e | 1622 | pdl->insert(p, os); |
a2fb1b05 ILT |
1623 | return; |
1624 | } | |
1625 | } | |
75f65a3e | 1626 | while (p != pdl->begin()); |
ead1e424 | 1627 | |
dbe717ef ILT |
1628 | // There are no TLS sections yet; put this one at the requested |
1629 | // location in the section list. | |
a2fb1b05 ILT |
1630 | } |
1631 | ||
dbe717ef ILT |
1632 | if (front) |
1633 | pdl->push_front(os); | |
1634 | else | |
1635 | pdl->push_back(os); | |
75f65a3e ILT |
1636 | } |
1637 | ||
1638 | // Add an Output_data (which is not an Output_section) to the start of | |
1639 | // a segment. | |
1640 | ||
1641 | void | |
1642 | Output_segment::add_initial_output_data(Output_data* od) | |
1643 | { | |
a3ad94ed | 1644 | gold_assert(!this->is_align_known_); |
75f65a3e ILT |
1645 | this->output_data_.push_front(od); |
1646 | } | |
1647 | ||
1648 | // Return the maximum alignment of the Output_data in Output_segment. | |
ead1e424 | 1649 | // Once we compute this, we prohibit new sections from being added. |
75f65a3e ILT |
1650 | |
1651 | uint64_t | |
ead1e424 | 1652 | Output_segment::addralign() |
75f65a3e | 1653 | { |
ead1e424 ILT |
1654 | if (!this->is_align_known_) |
1655 | { | |
1656 | uint64_t addralign; | |
1657 | ||
1658 | addralign = Output_segment::maximum_alignment(&this->output_data_); | |
1659 | if (addralign > this->align_) | |
1660 | this->align_ = addralign; | |
1661 | ||
1662 | addralign = Output_segment::maximum_alignment(&this->output_bss_); | |
1663 | if (addralign > this->align_) | |
1664 | this->align_ = addralign; | |
1665 | ||
1666 | this->is_align_known_ = true; | |
1667 | } | |
1668 | ||
75f65a3e ILT |
1669 | return this->align_; |
1670 | } | |
1671 | ||
ead1e424 ILT |
1672 | // Return the maximum alignment of a list of Output_data. |
1673 | ||
1674 | uint64_t | |
1675 | Output_segment::maximum_alignment(const Output_data_list* pdl) | |
1676 | { | |
1677 | uint64_t ret = 0; | |
1678 | for (Output_data_list::const_iterator p = pdl->begin(); | |
1679 | p != pdl->end(); | |
1680 | ++p) | |
1681 | { | |
1682 | uint64_t addralign = (*p)->addralign(); | |
1683 | if (addralign > ret) | |
1684 | ret = addralign; | |
1685 | } | |
1686 | return ret; | |
1687 | } | |
1688 | ||
4f4c5f80 ILT |
1689 | // Return the number of dynamic relocs applied to this segment. |
1690 | ||
1691 | unsigned int | |
1692 | Output_segment::dynamic_reloc_count() const | |
1693 | { | |
1694 | return (this->dynamic_reloc_count_list(&this->output_data_) | |
1695 | + this->dynamic_reloc_count_list(&this->output_bss_)); | |
1696 | } | |
1697 | ||
1698 | // Return the number of dynamic relocs applied to an Output_data_list. | |
1699 | ||
1700 | unsigned int | |
1701 | Output_segment::dynamic_reloc_count_list(const Output_data_list* pdl) const | |
1702 | { | |
1703 | unsigned int count = 0; | |
1704 | for (Output_data_list::const_iterator p = pdl->begin(); | |
1705 | p != pdl->end(); | |
1706 | ++p) | |
1707 | count += (*p)->dynamic_reloc_count(); | |
1708 | return count; | |
1709 | } | |
1710 | ||
75f65a3e | 1711 | // Set the section addresses for an Output_segment. ADDR is the |
ead1e424 ILT |
1712 | // address and *POFF is the file offset. Set the section indexes |
1713 | // starting with *PSHNDX. Return the address of the immediately | |
1714 | // following segment. Update *POFF and *PSHNDX. | |
75f65a3e ILT |
1715 | |
1716 | uint64_t | |
ead1e424 ILT |
1717 | Output_segment::set_section_addresses(uint64_t addr, off_t* poff, |
1718 | unsigned int* pshndx) | |
75f65a3e | 1719 | { |
a3ad94ed | 1720 | gold_assert(this->type_ == elfcpp::PT_LOAD); |
75f65a3e ILT |
1721 | |
1722 | this->vaddr_ = addr; | |
1723 | this->paddr_ = addr; | |
1724 | ||
1725 | off_t orig_off = *poff; | |
1726 | this->offset_ = orig_off; | |
1727 | ||
ead1e424 ILT |
1728 | *poff = align_address(*poff, this->addralign()); |
1729 | ||
1730 | addr = this->set_section_list_addresses(&this->output_data_, addr, poff, | |
1731 | pshndx); | |
75f65a3e ILT |
1732 | this->filesz_ = *poff - orig_off; |
1733 | ||
1734 | off_t off = *poff; | |
1735 | ||
61ba1cf9 | 1736 | uint64_t ret = this->set_section_list_addresses(&this->output_bss_, addr, |
ead1e424 | 1737 | poff, pshndx); |
75f65a3e ILT |
1738 | this->memsz_ = *poff - orig_off; |
1739 | ||
1740 | // Ignore the file offset adjustments made by the BSS Output_data | |
1741 | // objects. | |
1742 | *poff = off; | |
61ba1cf9 ILT |
1743 | |
1744 | return ret; | |
75f65a3e ILT |
1745 | } |
1746 | ||
b8e6aad9 ILT |
1747 | // Set the addresses and file offsets in a list of Output_data |
1748 | // structures. | |
75f65a3e ILT |
1749 | |
1750 | uint64_t | |
1751 | Output_segment::set_section_list_addresses(Output_data_list* pdl, | |
ead1e424 ILT |
1752 | uint64_t addr, off_t* poff, |
1753 | unsigned int* pshndx) | |
75f65a3e | 1754 | { |
ead1e424 | 1755 | off_t startoff = *poff; |
75f65a3e | 1756 | |
ead1e424 | 1757 | off_t off = startoff; |
75f65a3e ILT |
1758 | for (Output_data_list::iterator p = pdl->begin(); |
1759 | p != pdl->end(); | |
1760 | ++p) | |
1761 | { | |
ead1e424 | 1762 | off = align_address(off, (*p)->addralign()); |
27bc2bce | 1763 | (*p)->set_address_and_file_offset(addr + (off - startoff), off); |
ead1e424 ILT |
1764 | |
1765 | // Unless this is a PT_TLS segment, we want to ignore the size | |
1766 | // of a SHF_TLS/SHT_NOBITS section. Such a section does not | |
1767 | // affect the size of a PT_LOAD segment. | |
1768 | if (this->type_ == elfcpp::PT_TLS | |
1769 | || !(*p)->is_section_flag_set(elfcpp::SHF_TLS) | |
1770 | || !(*p)->is_section_type(elfcpp::SHT_NOBITS)) | |
1771 | off += (*p)->data_size(); | |
75f65a3e | 1772 | |
ead1e424 ILT |
1773 | if ((*p)->is_section()) |
1774 | { | |
1775 | (*p)->set_out_shndx(*pshndx); | |
1776 | ++*pshndx; | |
1777 | } | |
75f65a3e ILT |
1778 | } |
1779 | ||
1780 | *poff = off; | |
ead1e424 | 1781 | return addr + (off - startoff); |
75f65a3e ILT |
1782 | } |
1783 | ||
1784 | // For a non-PT_LOAD segment, set the offset from the sections, if | |
1785 | // any. | |
1786 | ||
1787 | void | |
1788 | Output_segment::set_offset() | |
1789 | { | |
a3ad94ed | 1790 | gold_assert(this->type_ != elfcpp::PT_LOAD); |
75f65a3e ILT |
1791 | |
1792 | if (this->output_data_.empty() && this->output_bss_.empty()) | |
1793 | { | |
1794 | this->vaddr_ = 0; | |
1795 | this->paddr_ = 0; | |
1796 | this->memsz_ = 0; | |
1797 | this->align_ = 0; | |
1798 | this->offset_ = 0; | |
1799 | this->filesz_ = 0; | |
1800 | return; | |
1801 | } | |
1802 | ||
1803 | const Output_data* first; | |
1804 | if (this->output_data_.empty()) | |
1805 | first = this->output_bss_.front(); | |
1806 | else | |
1807 | first = this->output_data_.front(); | |
1808 | this->vaddr_ = first->address(); | |
1809 | this->paddr_ = this->vaddr_; | |
1810 | this->offset_ = first->offset(); | |
1811 | ||
1812 | if (this->output_data_.empty()) | |
1813 | this->filesz_ = 0; | |
1814 | else | |
1815 | { | |
1816 | const Output_data* last_data = this->output_data_.back(); | |
1817 | this->filesz_ = (last_data->address() | |
1818 | + last_data->data_size() | |
1819 | - this->vaddr_); | |
1820 | } | |
1821 | ||
1822 | const Output_data* last; | |
1823 | if (this->output_bss_.empty()) | |
1824 | last = this->output_data_.back(); | |
1825 | else | |
1826 | last = this->output_bss_.back(); | |
1827 | this->memsz_ = (last->address() | |
1828 | + last->data_size() | |
1829 | - this->vaddr_); | |
75f65a3e ILT |
1830 | } |
1831 | ||
1832 | // Return the number of Output_sections in an Output_segment. | |
1833 | ||
1834 | unsigned int | |
1835 | Output_segment::output_section_count() const | |
1836 | { | |
1837 | return (this->output_section_count_list(&this->output_data_) | |
1838 | + this->output_section_count_list(&this->output_bss_)); | |
1839 | } | |
1840 | ||
1841 | // Return the number of Output_sections in an Output_data_list. | |
1842 | ||
1843 | unsigned int | |
1844 | Output_segment::output_section_count_list(const Output_data_list* pdl) const | |
1845 | { | |
1846 | unsigned int count = 0; | |
1847 | for (Output_data_list::const_iterator p = pdl->begin(); | |
1848 | p != pdl->end(); | |
1849 | ++p) | |
1850 | { | |
1851 | if ((*p)->is_section()) | |
1852 | ++count; | |
1853 | } | |
1854 | return count; | |
a2fb1b05 ILT |
1855 | } |
1856 | ||
61ba1cf9 ILT |
1857 | // Write the segment data into *OPHDR. |
1858 | ||
1859 | template<int size, bool big_endian> | |
1860 | void | |
ead1e424 | 1861 | Output_segment::write_header(elfcpp::Phdr_write<size, big_endian>* ophdr) |
61ba1cf9 ILT |
1862 | { |
1863 | ophdr->put_p_type(this->type_); | |
1864 | ophdr->put_p_offset(this->offset_); | |
1865 | ophdr->put_p_vaddr(this->vaddr_); | |
1866 | ophdr->put_p_paddr(this->paddr_); | |
1867 | ophdr->put_p_filesz(this->filesz_); | |
1868 | ophdr->put_p_memsz(this->memsz_); | |
1869 | ophdr->put_p_flags(this->flags_); | |
ead1e424 | 1870 | ophdr->put_p_align(this->addralign()); |
61ba1cf9 ILT |
1871 | } |
1872 | ||
1873 | // Write the section headers into V. | |
1874 | ||
1875 | template<int size, bool big_endian> | |
1876 | unsigned char* | |
16649710 ILT |
1877 | Output_segment::write_section_headers(const Layout* layout, |
1878 | const Stringpool* secnamepool, | |
ead1e424 ILT |
1879 | unsigned char* v, |
1880 | unsigned int *pshndx | |
5482377d ILT |
1881 | ACCEPT_SIZE_ENDIAN) const |
1882 | { | |
ead1e424 ILT |
1883 | // Every section that is attached to a segment must be attached to a |
1884 | // PT_LOAD segment, so we only write out section headers for PT_LOAD | |
1885 | // segments. | |
1886 | if (this->type_ != elfcpp::PT_LOAD) | |
1887 | return v; | |
1888 | ||
593f47df ILT |
1889 | v = this->write_section_headers_list |
1890 | SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( | |
16649710 | 1891 | layout, secnamepool, &this->output_data_, v, pshndx |
593f47df ILT |
1892 | SELECT_SIZE_ENDIAN(size, big_endian)); |
1893 | v = this->write_section_headers_list | |
1894 | SELECT_SIZE_ENDIAN_NAME(size, big_endian) ( | |
16649710 | 1895 | layout, secnamepool, &this->output_bss_, v, pshndx |
593f47df | 1896 | SELECT_SIZE_ENDIAN(size, big_endian)); |
61ba1cf9 ILT |
1897 | return v; |
1898 | } | |
1899 | ||
1900 | template<int size, bool big_endian> | |
1901 | unsigned char* | |
16649710 ILT |
1902 | Output_segment::write_section_headers_list(const Layout* layout, |
1903 | const Stringpool* secnamepool, | |
61ba1cf9 | 1904 | const Output_data_list* pdl, |
ead1e424 ILT |
1905 | unsigned char* v, |
1906 | unsigned int* pshndx | |
5482377d | 1907 | ACCEPT_SIZE_ENDIAN) const |
61ba1cf9 ILT |
1908 | { |
1909 | const int shdr_size = elfcpp::Elf_sizes<size>::shdr_size; | |
1910 | for (Output_data_list::const_iterator p = pdl->begin(); | |
1911 | p != pdl->end(); | |
1912 | ++p) | |
1913 | { | |
1914 | if ((*p)->is_section()) | |
1915 | { | |
5482377d | 1916 | const Output_section* ps = static_cast<const Output_section*>(*p); |
a3ad94ed | 1917 | gold_assert(*pshndx == ps->out_shndx()); |
61ba1cf9 | 1918 | elfcpp::Shdr_write<size, big_endian> oshdr(v); |
16649710 | 1919 | ps->write_header(layout, secnamepool, &oshdr); |
61ba1cf9 | 1920 | v += shdr_size; |
ead1e424 | 1921 | ++*pshndx; |
61ba1cf9 ILT |
1922 | } |
1923 | } | |
1924 | return v; | |
1925 | } | |
1926 | ||
a2fb1b05 ILT |
1927 | // Output_file methods. |
1928 | ||
c51e6221 | 1929 | Output_file::Output_file(const General_options& options, Target* target) |
61ba1cf9 | 1930 | : options_(options), |
c51e6221 | 1931 | target_(target), |
61ba1cf9 ILT |
1932 | name_(options.output_file_name()), |
1933 | o_(-1), | |
1934 | file_size_(0), | |
c420411f ILT |
1935 | base_(NULL), |
1936 | map_is_anonymous_(false) | |
61ba1cf9 ILT |
1937 | { |
1938 | } | |
1939 | ||
1940 | // Open the output file. | |
1941 | ||
a2fb1b05 | 1942 | void |
61ba1cf9 | 1943 | Output_file::open(off_t file_size) |
a2fb1b05 | 1944 | { |
61ba1cf9 ILT |
1945 | this->file_size_ = file_size; |
1946 | ||
4e9d8586 ILT |
1947 | // Unlink the file first; otherwise the open() may fail if the file |
1948 | // is busy (e.g. it's an executable that's currently being executed). | |
1949 | // | |
1950 | // However, the linker may be part of a system where a zero-length | |
1951 | // file is created for it to write to, with tight permissions (gcc | |
1952 | // 2.95 did something like this). Unlinking the file would work | |
1953 | // around those permission controls, so we only unlink if the file | |
1954 | // has a non-zero size. We also unlink only regular files to avoid | |
1955 | // trouble with directories/etc. | |
1956 | // | |
1957 | // If we fail, continue; this command is merely a best-effort attempt | |
1958 | // to improve the odds for open(). | |
1959 | ||
4e9d8586 | 1960 | struct stat s; |
5ffcaa86 ILT |
1961 | if (::stat(this->name_, &s) == 0 && s.st_size != 0) |
1962 | unlink_if_ordinary(this->name_); | |
4e9d8586 | 1963 | |
7e1edb90 | 1964 | int mode = parameters->output_is_object() ? 0666 : 0777; |
61ba1cf9 ILT |
1965 | int o = ::open(this->name_, O_RDWR | O_CREAT | O_TRUNC, mode); |
1966 | if (o < 0) | |
75f2446e | 1967 | gold_fatal(_("%s: open: %s"), this->name_, strerror(errno)); |
61ba1cf9 ILT |
1968 | this->o_ = o; |
1969 | ||
27bc2bce ILT |
1970 | this->map(); |
1971 | } | |
1972 | ||
1973 | // Resize the output file. | |
1974 | ||
1975 | void | |
1976 | Output_file::resize(off_t file_size) | |
1977 | { | |
c420411f ILT |
1978 | // If the mmap is mapping an anonymous memory buffer, this is easy: |
1979 | // just mremap to the new size. If it's mapping to a file, we want | |
1980 | // to unmap to flush to the file, then remap after growing the file. | |
1981 | if (this->map_is_anonymous_) | |
1982 | { | |
1983 | void* base = ::mremap(this->base_, this->file_size_, file_size, | |
1984 | MREMAP_MAYMOVE); | |
1985 | if (base == MAP_FAILED) | |
1986 | gold_fatal(_("%s: mremap: %s"), this->name_, strerror(errno)); | |
1987 | this->base_ = static_cast<unsigned char*>(base); | |
1988 | this->file_size_ = file_size; | |
1989 | } | |
1990 | else | |
1991 | { | |
1992 | this->unmap(); | |
1993 | this->file_size_ = file_size; | |
1994 | this->map(); | |
1995 | } | |
27bc2bce ILT |
1996 | } |
1997 | ||
1998 | // Map the file into memory. | |
1999 | ||
2000 | void | |
2001 | Output_file::map() | |
2002 | { | |
c420411f | 2003 | const int o = this->o_; |
61ba1cf9 | 2004 | |
c420411f ILT |
2005 | // If the output file is not a regular file, don't try to mmap it; |
2006 | // instead, we'll mmap a block of memory (an anonymous buffer), and | |
2007 | // then later write the buffer to the file. | |
2008 | void* base; | |
2009 | struct stat statbuf; | |
2010 | if (::fstat(o, &statbuf) != 0 | |
2011 | || !S_ISREG(statbuf.st_mode)) | |
2012 | { | |
2013 | this->map_is_anonymous_ = true; | |
2014 | base = ::mmap(NULL, this->file_size_, PROT_READ | PROT_WRITE, | |
2015 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); | |
2016 | } | |
2017 | else | |
2018 | { | |
2019 | // Write out one byte to make the file the right size. | |
2020 | if (::lseek(o, this->file_size_ - 1, SEEK_SET) < 0) | |
2021 | gold_fatal(_("%s: lseek: %s"), this->name_, strerror(errno)); | |
2022 | char b = 0; | |
2023 | if (::write(o, &b, 1) != 1) | |
2024 | gold_fatal(_("%s: write: %s"), this->name_, strerror(errno)); | |
2025 | ||
2026 | // Map the file into memory. | |
2027 | this->map_is_anonymous_ = false; | |
2028 | base = ::mmap(NULL, this->file_size_, PROT_READ | PROT_WRITE, | |
2029 | MAP_SHARED, o, 0); | |
2030 | } | |
61ba1cf9 | 2031 | if (base == MAP_FAILED) |
75f2446e | 2032 | gold_fatal(_("%s: mmap: %s"), this->name_, strerror(errno)); |
61ba1cf9 ILT |
2033 | this->base_ = static_cast<unsigned char*>(base); |
2034 | } | |
2035 | ||
c420411f | 2036 | // Unmap the file from memory. |
61ba1cf9 ILT |
2037 | |
2038 | void | |
c420411f | 2039 | Output_file::unmap() |
61ba1cf9 ILT |
2040 | { |
2041 | if (::munmap(this->base_, this->file_size_) < 0) | |
a0c4fb0a | 2042 | gold_error(_("%s: munmap: %s"), this->name_, strerror(errno)); |
61ba1cf9 | 2043 | this->base_ = NULL; |
c420411f ILT |
2044 | } |
2045 | ||
2046 | // Close the output file. | |
2047 | ||
2048 | void | |
2049 | Output_file::close() | |
2050 | { | |
2051 | // If the map isn't file-backed, we need to write it now. | |
2052 | if (this->map_is_anonymous_) | |
2053 | { | |
2054 | size_t bytes_to_write = this->file_size_; | |
2055 | while (bytes_to_write > 0) | |
2056 | { | |
2057 | ssize_t bytes_written = ::write(this->o_, this->base_, bytes_to_write); | |
2058 | if (bytes_written == 0) | |
2059 | gold_error(_("%s: write: unexpected 0 return-value"), this->name_); | |
2060 | else if (bytes_written < 0) | |
2061 | gold_error(_("%s: write: %s"), this->name_, strerror(errno)); | |
2062 | else | |
2063 | bytes_to_write -= bytes_written; | |
2064 | } | |
2065 | } | |
2066 | this->unmap(); | |
61ba1cf9 ILT |
2067 | |
2068 | if (::close(this->o_) < 0) | |
75f2446e | 2069 | gold_error(_("%s: close: %s"), this->name_, strerror(errno)); |
61ba1cf9 | 2070 | this->o_ = -1; |
a2fb1b05 ILT |
2071 | } |
2072 | ||
2073 | // Instantiate the templates we need. We could use the configure | |
2074 | // script to restrict this to only the ones for implemented targets. | |
2075 | ||
193a53d9 | 2076 | #ifdef HAVE_TARGET_32_LITTLE |
a2fb1b05 ILT |
2077 | template |
2078 | off_t | |
2079 | Output_section::add_input_section<32, false>( | |
730cdc88 | 2080 | Sized_relobj<32, false>* object, |
ead1e424 | 2081 | unsigned int shndx, |
a2fb1b05 | 2082 | const char* secname, |
730cdc88 ILT |
2083 | const elfcpp::Shdr<32, false>& shdr, |
2084 | unsigned int reloc_shndx); | |
193a53d9 | 2085 | #endif |
a2fb1b05 | 2086 | |
193a53d9 | 2087 | #ifdef HAVE_TARGET_32_BIG |
a2fb1b05 ILT |
2088 | template |
2089 | off_t | |
2090 | Output_section::add_input_section<32, true>( | |
730cdc88 | 2091 | Sized_relobj<32, true>* object, |
ead1e424 | 2092 | unsigned int shndx, |
a2fb1b05 | 2093 | const char* secname, |
730cdc88 ILT |
2094 | const elfcpp::Shdr<32, true>& shdr, |
2095 | unsigned int reloc_shndx); | |
193a53d9 | 2096 | #endif |
a2fb1b05 | 2097 | |
193a53d9 | 2098 | #ifdef HAVE_TARGET_64_LITTLE |
a2fb1b05 ILT |
2099 | template |
2100 | off_t | |
2101 | Output_section::add_input_section<64, false>( | |
730cdc88 | 2102 | Sized_relobj<64, false>* object, |
ead1e424 | 2103 | unsigned int shndx, |
a2fb1b05 | 2104 | const char* secname, |
730cdc88 ILT |
2105 | const elfcpp::Shdr<64, false>& shdr, |
2106 | unsigned int reloc_shndx); | |
193a53d9 | 2107 | #endif |
a2fb1b05 | 2108 | |
193a53d9 | 2109 | #ifdef HAVE_TARGET_64_BIG |
a2fb1b05 ILT |
2110 | template |
2111 | off_t | |
2112 | Output_section::add_input_section<64, true>( | |
730cdc88 | 2113 | Sized_relobj<64, true>* object, |
ead1e424 | 2114 | unsigned int shndx, |
a2fb1b05 | 2115 | const char* secname, |
730cdc88 ILT |
2116 | const elfcpp::Shdr<64, true>& shdr, |
2117 | unsigned int reloc_shndx); | |
193a53d9 | 2118 | #endif |
a2fb1b05 | 2119 | |
193a53d9 | 2120 | #ifdef HAVE_TARGET_32_LITTLE |
c06b7b0b ILT |
2121 | template |
2122 | class Output_data_reloc<elfcpp::SHT_REL, false, 32, false>; | |
193a53d9 | 2123 | #endif |
c06b7b0b | 2124 | |
193a53d9 | 2125 | #ifdef HAVE_TARGET_32_BIG |
c06b7b0b ILT |
2126 | template |
2127 | class Output_data_reloc<elfcpp::SHT_REL, false, 32, true>; | |
193a53d9 | 2128 | #endif |
c06b7b0b | 2129 | |
193a53d9 | 2130 | #ifdef HAVE_TARGET_64_LITTLE |
c06b7b0b ILT |
2131 | template |
2132 | class Output_data_reloc<elfcpp::SHT_REL, false, 64, false>; | |
193a53d9 | 2133 | #endif |
c06b7b0b | 2134 | |
193a53d9 | 2135 | #ifdef HAVE_TARGET_64_BIG |
c06b7b0b ILT |
2136 | template |
2137 | class Output_data_reloc<elfcpp::SHT_REL, false, 64, true>; | |
193a53d9 | 2138 | #endif |
c06b7b0b | 2139 | |
193a53d9 | 2140 | #ifdef HAVE_TARGET_32_LITTLE |
c06b7b0b ILT |
2141 | template |
2142 | class Output_data_reloc<elfcpp::SHT_REL, true, 32, false>; | |
193a53d9 | 2143 | #endif |
c06b7b0b | 2144 | |
193a53d9 | 2145 | #ifdef HAVE_TARGET_32_BIG |
c06b7b0b ILT |
2146 | template |
2147 | class Output_data_reloc<elfcpp::SHT_REL, true, 32, true>; | |
193a53d9 | 2148 | #endif |
c06b7b0b | 2149 | |
193a53d9 | 2150 | #ifdef HAVE_TARGET_64_LITTLE |
c06b7b0b ILT |
2151 | template |
2152 | class Output_data_reloc<elfcpp::SHT_REL, true, 64, false>; | |
193a53d9 | 2153 | #endif |
c06b7b0b | 2154 | |
193a53d9 | 2155 | #ifdef HAVE_TARGET_64_BIG |
c06b7b0b ILT |
2156 | template |
2157 | class Output_data_reloc<elfcpp::SHT_REL, true, 64, true>; | |
193a53d9 | 2158 | #endif |
c06b7b0b | 2159 | |
193a53d9 | 2160 | #ifdef HAVE_TARGET_32_LITTLE |
c06b7b0b ILT |
2161 | template |
2162 | class Output_data_reloc<elfcpp::SHT_RELA, false, 32, false>; | |
193a53d9 | 2163 | #endif |
c06b7b0b | 2164 | |
193a53d9 | 2165 | #ifdef HAVE_TARGET_32_BIG |
c06b7b0b ILT |
2166 | template |
2167 | class Output_data_reloc<elfcpp::SHT_RELA, false, 32, true>; | |
193a53d9 | 2168 | #endif |
c06b7b0b | 2169 | |
193a53d9 | 2170 | #ifdef HAVE_TARGET_64_LITTLE |
c06b7b0b ILT |
2171 | template |
2172 | class Output_data_reloc<elfcpp::SHT_RELA, false, 64, false>; | |
193a53d9 | 2173 | #endif |
c06b7b0b | 2174 | |
193a53d9 | 2175 | #ifdef HAVE_TARGET_64_BIG |
c06b7b0b ILT |
2176 | template |
2177 | class Output_data_reloc<elfcpp::SHT_RELA, false, 64, true>; | |
193a53d9 | 2178 | #endif |
c06b7b0b | 2179 | |
193a53d9 | 2180 | #ifdef HAVE_TARGET_32_LITTLE |
c06b7b0b ILT |
2181 | template |
2182 | class Output_data_reloc<elfcpp::SHT_RELA, true, 32, false>; | |
193a53d9 | 2183 | #endif |
c06b7b0b | 2184 | |
193a53d9 | 2185 | #ifdef HAVE_TARGET_32_BIG |
c06b7b0b ILT |
2186 | template |
2187 | class Output_data_reloc<elfcpp::SHT_RELA, true, 32, true>; | |
193a53d9 | 2188 | #endif |
c06b7b0b | 2189 | |
193a53d9 | 2190 | #ifdef HAVE_TARGET_64_LITTLE |
c06b7b0b ILT |
2191 | template |
2192 | class Output_data_reloc<elfcpp::SHT_RELA, true, 64, false>; | |
193a53d9 | 2193 | #endif |
c06b7b0b | 2194 | |
193a53d9 | 2195 | #ifdef HAVE_TARGET_64_BIG |
c06b7b0b ILT |
2196 | template |
2197 | class Output_data_reloc<elfcpp::SHT_RELA, true, 64, true>; | |
193a53d9 | 2198 | #endif |
c06b7b0b | 2199 | |
193a53d9 | 2200 | #ifdef HAVE_TARGET_32_LITTLE |
ead1e424 | 2201 | template |
dbe717ef | 2202 | class Output_data_got<32, false>; |
193a53d9 | 2203 | #endif |
ead1e424 | 2204 | |
193a53d9 | 2205 | #ifdef HAVE_TARGET_32_BIG |
ead1e424 | 2206 | template |
dbe717ef | 2207 | class Output_data_got<32, true>; |
193a53d9 | 2208 | #endif |
ead1e424 | 2209 | |
193a53d9 | 2210 | #ifdef HAVE_TARGET_64_LITTLE |
ead1e424 | 2211 | template |
dbe717ef | 2212 | class Output_data_got<64, false>; |
193a53d9 | 2213 | #endif |
ead1e424 | 2214 | |
193a53d9 | 2215 | #ifdef HAVE_TARGET_64_BIG |
ead1e424 | 2216 | template |
dbe717ef | 2217 | class Output_data_got<64, true>; |
193a53d9 | 2218 | #endif |
ead1e424 | 2219 | |
a2fb1b05 | 2220 | } // End namespace gold. |