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dbe717ef ILT |
1 | // dynobj.cc -- dynamic object support for gold |
2 | ||
3 | #include "gold.h" | |
4 | ||
5 | #include <vector> | |
6 | #include <cstring> | |
7 | ||
8 | #include "symtab.h" | |
9 | #include "dynobj.h" | |
10 | ||
11 | namespace gold | |
12 | { | |
13 | ||
14 | // Class Sized_dynobj. | |
15 | ||
16 | template<int size, bool big_endian> | |
17 | Sized_dynobj<size, big_endian>::Sized_dynobj( | |
18 | const std::string& name, | |
19 | Input_file* input_file, | |
20 | off_t offset, | |
21 | const elfcpp::Ehdr<size, big_endian>& ehdr) | |
22 | : Dynobj(name, input_file, offset), | |
23 | elf_file_(this, ehdr), | |
24 | soname_() | |
25 | { | |
26 | } | |
27 | ||
28 | // Set up the object. | |
29 | ||
30 | template<int size, bool big_endian> | |
31 | void | |
32 | Sized_dynobj<size, big_endian>::setup( | |
33 | const elfcpp::Ehdr<size, big_endian>& ehdr) | |
34 | { | |
35 | this->set_target(ehdr.get_e_machine(), size, big_endian, | |
36 | ehdr.get_e_ident()[elfcpp::EI_OSABI], | |
37 | ehdr.get_e_ident()[elfcpp::EI_ABIVERSION]); | |
38 | ||
39 | const unsigned int shnum = this->elf_file_.shnum(); | |
40 | this->set_shnum(shnum); | |
41 | } | |
42 | ||
43 | // Find the SHT_DYNSYM section and the various version sections, and | |
44 | // the dynamic section, given the section headers. | |
45 | ||
46 | template<int size, bool big_endian> | |
47 | void | |
48 | Sized_dynobj<size, big_endian>::find_dynsym_sections( | |
49 | const unsigned char* pshdrs, | |
50 | unsigned int* pdynsym_shndx, | |
51 | unsigned int* pversym_shndx, | |
52 | unsigned int* pverdef_shndx, | |
53 | unsigned int* pverneed_shndx, | |
54 | unsigned int* pdynamic_shndx) | |
55 | { | |
56 | *pdynsym_shndx = -1U; | |
57 | *pversym_shndx = -1U; | |
58 | *pverdef_shndx = -1U; | |
59 | *pverneed_shndx = -1U; | |
60 | *pdynamic_shndx = -1U; | |
61 | ||
62 | const unsigned int shnum = this->shnum(); | |
63 | const unsigned char* p = pshdrs; | |
64 | for (unsigned int i = 0; i < shnum; ++i, p += This::shdr_size) | |
65 | { | |
66 | typename This::Shdr shdr(p); | |
67 | ||
68 | unsigned int* pi; | |
69 | switch (shdr.get_sh_type()) | |
70 | { | |
71 | case elfcpp::SHT_DYNSYM: | |
72 | pi = pdynsym_shndx; | |
73 | break; | |
74 | case elfcpp::SHT_GNU_versym: | |
75 | pi = pversym_shndx; | |
76 | break; | |
77 | case elfcpp::SHT_GNU_verdef: | |
78 | pi = pverdef_shndx; | |
79 | break; | |
80 | case elfcpp::SHT_GNU_verneed: | |
81 | pi = pverneed_shndx; | |
82 | break; | |
83 | case elfcpp::SHT_DYNAMIC: | |
84 | pi = pdynamic_shndx; | |
85 | break; | |
86 | default: | |
87 | pi = NULL; | |
88 | break; | |
89 | } | |
90 | ||
91 | if (pi == NULL) | |
92 | continue; | |
93 | ||
94 | if (*pi != -1U) | |
95 | { | |
96 | fprintf(stderr, | |
97 | _("%s: %s: unexpected duplicate type %u section: %u, %u\n"), | |
98 | program_name, this->name().c_str(), shdr.get_sh_type(), | |
99 | *pi, i); | |
100 | gold_exit(false); | |
101 | } | |
102 | ||
103 | *pi = i; | |
104 | } | |
105 | } | |
106 | ||
107 | // Read the contents of section SHNDX. PSHDRS points to the section | |
108 | // headers. TYPE is the expected section type. LINK is the expected | |
109 | // section link. Store the data in *VIEW and *VIEW_SIZE. The | |
110 | // section's sh_info field is stored in *VIEW_INFO. | |
111 | ||
112 | template<int size, bool big_endian> | |
113 | void | |
114 | Sized_dynobj<size, big_endian>::read_dynsym_section( | |
115 | const unsigned char* pshdrs, | |
116 | unsigned int shndx, | |
117 | elfcpp::SHT type, | |
118 | unsigned int link, | |
119 | File_view** view, | |
120 | off_t* view_size, | |
121 | unsigned int* view_info) | |
122 | { | |
123 | if (shndx == -1U) | |
124 | { | |
125 | *view = NULL; | |
126 | *view_size = 0; | |
127 | *view_info = 0; | |
128 | return; | |
129 | } | |
130 | ||
131 | typename This::Shdr shdr(pshdrs + shndx * This::shdr_size); | |
132 | ||
133 | assert(shdr.get_sh_type() == type); | |
134 | ||
135 | if (shdr.get_sh_link() != link) | |
136 | { | |
137 | fprintf(stderr, | |
138 | _("%s: %s: unexpected link in section %u header: %u != %u\n"), | |
139 | program_name, this->name().c_str(), shndx, | |
140 | shdr.get_sh_link(), link); | |
141 | gold_exit(false); | |
142 | } | |
143 | ||
144 | *view = this->get_lasting_view(shdr.get_sh_offset(), shdr.get_sh_size()); | |
145 | *view_size = shdr.get_sh_size(); | |
146 | *view_info = shdr.get_sh_info(); | |
147 | } | |
148 | ||
149 | // Set soname_ if this shared object has a DT_SONAME tag. PSHDRS | |
150 | // points to the section headers. DYNAMIC_SHNDX is the section index | |
151 | // of the SHT_DYNAMIC section. STRTAB_SHNDX, STRTAB, and STRTAB_SIZE | |
152 | // are the section index and contents of a string table which may be | |
153 | // the one associated with the SHT_DYNAMIC section. | |
154 | ||
155 | template<int size, bool big_endian> | |
156 | void | |
157 | Sized_dynobj<size, big_endian>::set_soname(const unsigned char* pshdrs, | |
158 | unsigned int dynamic_shndx, | |
159 | unsigned int strtab_shndx, | |
160 | const unsigned char* strtabu, | |
161 | off_t strtab_size) | |
162 | { | |
163 | typename This::Shdr dynamicshdr(pshdrs + dynamic_shndx * This::shdr_size); | |
164 | assert(dynamicshdr.get_sh_type() == elfcpp::SHT_DYNAMIC); | |
165 | ||
166 | const off_t dynamic_size = dynamicshdr.get_sh_size(); | |
167 | const unsigned char* pdynamic = this->get_view(dynamicshdr.get_sh_offset(), | |
168 | dynamic_size); | |
169 | ||
170 | const unsigned int link = dynamicshdr.get_sh_link(); | |
171 | if (link != strtab_shndx) | |
172 | { | |
173 | if (link >= this->shnum()) | |
174 | { | |
175 | fprintf(stderr, | |
176 | _("%s: %s: DYNAMIC section %u link out of range: %u\n"), | |
177 | program_name, this->name().c_str(), | |
178 | dynamic_shndx, link); | |
179 | gold_exit(false); | |
180 | } | |
181 | ||
182 | typename This::Shdr strtabshdr(pshdrs + link * This::shdr_size); | |
183 | if (strtabshdr.get_sh_type() != elfcpp::SHT_STRTAB) | |
184 | { | |
185 | fprintf(stderr, | |
186 | _("%s: %s: DYNAMIC section %u link %u is not a strtab\n"), | |
187 | program_name, this->name().c_str(), | |
188 | dynamic_shndx, link); | |
189 | gold_exit(false); | |
190 | } | |
191 | ||
192 | strtab_size = strtabshdr.get_sh_size(); | |
193 | strtabu = this->get_view(strtabshdr.get_sh_offset(), strtab_size); | |
194 | } | |
195 | ||
196 | for (const unsigned char* p = pdynamic; | |
197 | p < pdynamic + dynamic_size; | |
198 | p += This::dyn_size) | |
199 | { | |
200 | typename This::Dyn dyn(p); | |
201 | ||
202 | if (dyn.get_d_tag() == elfcpp::DT_SONAME) | |
203 | { | |
204 | off_t val = dyn.get_d_val(); | |
205 | if (val >= strtab_size) | |
206 | { | |
207 | fprintf(stderr, | |
208 | _("%s: %s: DT_SONAME value out of range: " | |
209 | "%lld >= %lld\n"), | |
210 | program_name, this->name().c_str(), | |
211 | static_cast<long long>(val), | |
212 | static_cast<long long>(strtab_size)); | |
213 | gold_exit(false); | |
214 | } | |
215 | ||
216 | const char* strtab = reinterpret_cast<const char*>(strtabu); | |
217 | this->soname_ = std::string(strtab + val); | |
218 | return; | |
219 | } | |
220 | ||
221 | if (dyn.get_d_tag() == elfcpp::DT_NULL) | |
222 | return; | |
223 | } | |
224 | ||
225 | fprintf(stderr, _("%s: %s: missing DT_NULL in dynamic segment\n"), | |
226 | program_name, this->name().c_str()); | |
227 | gold_exit(false); | |
228 | } | |
229 | ||
230 | // Read the symbols and sections from a dynamic object. We read the | |
231 | // dynamic symbols, not the normal symbols. | |
232 | ||
233 | template<int size, bool big_endian> | |
234 | void | |
235 | Sized_dynobj<size, big_endian>::do_read_symbols(Read_symbols_data* sd) | |
236 | { | |
237 | this->read_section_data(&this->elf_file_, sd); | |
238 | ||
239 | const unsigned char* const pshdrs = sd->section_headers->data(); | |
240 | ||
241 | unsigned int dynsym_shndx; | |
242 | unsigned int versym_shndx; | |
243 | unsigned int verdef_shndx; | |
244 | unsigned int verneed_shndx; | |
245 | unsigned int dynamic_shndx; | |
246 | this->find_dynsym_sections(pshdrs, &dynsym_shndx, &versym_shndx, | |
247 | &verdef_shndx, &verneed_shndx, &dynamic_shndx); | |
248 | ||
249 | unsigned int strtab_shndx = -1U; | |
250 | ||
251 | if (dynsym_shndx == -1U) | |
252 | { | |
253 | sd->symbols = NULL; | |
254 | sd->symbols_size = 0; | |
255 | sd->symbol_names = NULL; | |
256 | sd->symbol_names_size = 0; | |
257 | } | |
258 | else | |
259 | { | |
260 | // Get the dynamic symbols. | |
261 | typename This::Shdr dynsymshdr(pshdrs + dynsym_shndx * This::shdr_size); | |
262 | assert(dynsymshdr.get_sh_type() == elfcpp::SHT_DYNSYM); | |
263 | ||
264 | sd->symbols = this->get_lasting_view(dynsymshdr.get_sh_offset(), | |
265 | dynsymshdr.get_sh_size()); | |
266 | sd->symbols_size = dynsymshdr.get_sh_size(); | |
267 | ||
268 | // Get the symbol names. | |
269 | strtab_shndx = dynsymshdr.get_sh_link(); | |
270 | if (strtab_shndx >= this->shnum()) | |
271 | { | |
272 | fprintf(stderr, | |
273 | _("%s: %s: invalid dynamic symbol table name index: %u\n"), | |
274 | program_name, this->name().c_str(), strtab_shndx); | |
275 | gold_exit(false); | |
276 | } | |
277 | typename This::Shdr strtabshdr(pshdrs + strtab_shndx * This::shdr_size); | |
278 | if (strtabshdr.get_sh_type() != elfcpp::SHT_STRTAB) | |
279 | { | |
280 | fprintf(stderr, | |
281 | _("%s: %s: dynamic symbol table name section " | |
282 | "has wrong type: %u\n"), | |
283 | program_name, this->name().c_str(), | |
284 | static_cast<unsigned int>(strtabshdr.get_sh_type())); | |
285 | gold_exit(false); | |
286 | } | |
287 | ||
288 | sd->symbol_names = this->get_lasting_view(strtabshdr.get_sh_offset(), | |
289 | strtabshdr.get_sh_size()); | |
290 | sd->symbol_names_size = strtabshdr.get_sh_size(); | |
291 | ||
292 | // Get the version information. | |
293 | ||
294 | unsigned int dummy; | |
295 | this->read_dynsym_section(pshdrs, versym_shndx, elfcpp::SHT_GNU_versym, | |
296 | dynsym_shndx, &sd->versym, &sd->versym_size, | |
297 | &dummy); | |
298 | ||
299 | // We require that the version definition and need section link | |
300 | // to the same string table as the dynamic symbol table. This | |
301 | // is not a technical requirement, but it always happens in | |
302 | // practice. We could change this if necessary. | |
303 | ||
304 | this->read_dynsym_section(pshdrs, verdef_shndx, elfcpp::SHT_GNU_verdef, | |
305 | strtab_shndx, &sd->verdef, &sd->verdef_size, | |
306 | &sd->verdef_info); | |
307 | ||
308 | this->read_dynsym_section(pshdrs, verneed_shndx, elfcpp::SHT_GNU_verneed, | |
309 | strtab_shndx, &sd->verneed, &sd->verneed_size, | |
310 | &sd->verneed_info); | |
311 | } | |
312 | ||
313 | // Read the SHT_DYNAMIC section to find whether this shared object | |
314 | // has a DT_SONAME tag. This doesn't really have anything to do | |
315 | // with reading the symbols, but this is a convenient place to do | |
316 | // it. | |
317 | if (dynamic_shndx != -1U) | |
318 | this->set_soname(pshdrs, dynamic_shndx, strtab_shndx, | |
319 | (sd->symbol_names == NULL | |
320 | ? NULL | |
321 | : sd->symbol_names->data()), | |
322 | sd->symbol_names_size); | |
323 | } | |
324 | ||
325 | // Lay out the input sections for a dynamic object. We don't want to | |
326 | // include sections from a dynamic object, so all that we actually do | |
327 | // here is check for .gnu.warning sections. | |
328 | ||
329 | template<int size, bool big_endian> | |
330 | void | |
331 | Sized_dynobj<size, big_endian>::do_layout(const General_options&, | |
332 | Symbol_table* symtab, | |
333 | Layout*, | |
334 | Read_symbols_data* sd) | |
335 | { | |
336 | const unsigned int shnum = this->shnum(); | |
337 | if (shnum == 0) | |
338 | return; | |
339 | ||
340 | // Get the section headers. | |
341 | const unsigned char* pshdrs = sd->section_headers->data(); | |
342 | ||
343 | // Get the section names. | |
344 | const unsigned char* pnamesu = sd->section_names->data(); | |
345 | const char* pnames = reinterpret_cast<const char*>(pnamesu); | |
346 | ||
347 | // Skip the first, dummy, section. | |
348 | pshdrs += This::shdr_size; | |
349 | for (unsigned int i = 1; i < shnum; ++i, pshdrs += This::shdr_size) | |
350 | { | |
351 | typename This::Shdr shdr(pshdrs); | |
352 | ||
353 | if (shdr.get_sh_name() >= sd->section_names_size) | |
354 | { | |
355 | fprintf(stderr, | |
356 | _("%s: %s: bad section name offset for section %u: %lu\n"), | |
357 | program_name, this->name().c_str(), i, | |
358 | static_cast<unsigned long>(shdr.get_sh_name())); | |
359 | gold_exit(false); | |
360 | } | |
361 | ||
362 | const char* name = pnames + shdr.get_sh_name(); | |
363 | ||
364 | this->handle_gnu_warning_section(name, i, symtab); | |
365 | } | |
366 | ||
367 | delete sd->section_headers; | |
368 | sd->section_headers = NULL; | |
369 | delete sd->section_names; | |
370 | sd->section_names = NULL; | |
371 | } | |
372 | ||
373 | // Add an entry to the vector mapping version numbers to version | |
374 | // strings. | |
375 | ||
376 | template<int size, bool big_endian> | |
377 | void | |
378 | Sized_dynobj<size, big_endian>::set_version_map( | |
379 | Version_map* version_map, | |
380 | unsigned int ndx, | |
381 | const char* name) const | |
382 | { | |
383 | assert(ndx < version_map->size()); | |
384 | if ((*version_map)[ndx] != NULL) | |
385 | { | |
386 | fprintf(stderr, _("%s: %s: duplicate definition for version %u\n"), | |
387 | program_name, this->name().c_str(), ndx); | |
388 | gold_exit(false); | |
389 | } | |
390 | (*version_map)[ndx] = name; | |
391 | } | |
392 | ||
393 | // Create a vector mapping version numbers to version strings. | |
394 | ||
395 | template<int size, bool big_endian> | |
396 | void | |
397 | Sized_dynobj<size, big_endian>::make_version_map( | |
398 | Read_symbols_data* sd, | |
399 | Version_map* version_map) const | |
400 | { | |
401 | if (sd->verdef == NULL && sd->verneed == NULL) | |
402 | return; | |
403 | ||
404 | // First find the largest version index. | |
405 | unsigned int maxver = 0; | |
406 | ||
407 | if (sd->verdef != NULL) | |
408 | { | |
409 | const unsigned char* pverdef = sd->verdef->data(); | |
410 | off_t verdef_size = sd->verdef_size; | |
411 | const unsigned int count = sd->verdef_info; | |
412 | ||
413 | const unsigned char* p = pverdef; | |
414 | for (unsigned int i = 0; i < count; ++i) | |
415 | { | |
416 | elfcpp::Verdef<size, big_endian> verdef(p); | |
417 | ||
418 | const unsigned int vd_ndx = verdef.get_vd_ndx(); | |
419 | ||
420 | // The GNU linker clears the VERSYM_HIDDEN bit. I'm not | |
421 | // sure why. | |
422 | ||
423 | if (vd_ndx > maxver) | |
424 | maxver = vd_ndx; | |
425 | ||
426 | const unsigned int vd_next = verdef.get_vd_next(); | |
427 | if ((p - pverdef) + vd_next >= verdef_size) | |
428 | { | |
429 | fprintf(stderr, | |
430 | _("%s: %s: verdef vd_next field out of range: %u\n"), | |
431 | program_name, this->name().c_str(), vd_next); | |
432 | gold_exit(false); | |
433 | } | |
434 | ||
435 | p += vd_next; | |
436 | } | |
437 | } | |
438 | ||
439 | if (sd->verneed != NULL) | |
440 | { | |
441 | const unsigned char* pverneed = sd->verneed->data(); | |
442 | off_t verneed_size = sd->verneed_size; | |
443 | const unsigned int count = sd->verneed_info; | |
444 | ||
445 | const unsigned char* p = pverneed; | |
446 | for (unsigned int i = 0; i < count; ++i) | |
447 | { | |
448 | elfcpp::Verneed<size, big_endian> verneed(p); | |
449 | ||
450 | const unsigned int vn_aux = verneed.get_vn_aux(); | |
451 | if ((p - pverneed) + vn_aux >= verneed_size) | |
452 | { | |
453 | fprintf(stderr, | |
454 | _("%s: %s: verneed vn_aux field out of range: %u\n"), | |
455 | program_name, this->name().c_str(), vn_aux); | |
456 | gold_exit(false); | |
457 | } | |
458 | ||
459 | const unsigned int vn_cnt = verneed.get_vn_cnt(); | |
460 | const unsigned char* pvna = p + vn_aux; | |
461 | for (unsigned int j = 0; j < vn_cnt; ++j) | |
462 | { | |
463 | elfcpp::Vernaux<size, big_endian> vernaux(pvna); | |
464 | ||
465 | const unsigned int vna_other = vernaux.get_vna_other(); | |
466 | if (vna_other > maxver) | |
467 | maxver = vna_other; | |
468 | ||
469 | const unsigned int vna_next = vernaux.get_vna_next(); | |
470 | if ((pvna - pverneed) + vna_next >= verneed_size) | |
471 | { | |
472 | fprintf(stderr, | |
473 | _("%s: %s: verneed vna_next field " | |
474 | "out of range: %u\n"), | |
475 | program_name, this->name().c_str(), vna_next); | |
476 | gold_exit(false); | |
477 | } | |
478 | ||
479 | pvna += vna_next; | |
480 | } | |
481 | ||
482 | const unsigned int vn_next = verneed.get_vn_next(); | |
483 | if ((p - pverneed) + vn_next >= verneed_size) | |
484 | { | |
485 | fprintf(stderr, | |
486 | _("%s: %s: verneed vn_next field out of range: %u\n"), | |
487 | program_name, this->name().c_str(), vn_next); | |
488 | gold_exit(false); | |
489 | } | |
490 | ||
491 | p += vn_next; | |
492 | } | |
493 | } | |
494 | ||
495 | // Now MAXVER is the largest version index we have seen. | |
496 | ||
497 | version_map->resize(maxver + 1); | |
498 | ||
499 | const char* names = reinterpret_cast<const char*>(sd->symbol_names->data()); | |
500 | off_t names_size = sd->symbol_names_size; | |
501 | ||
502 | if (sd->verdef != NULL) | |
503 | { | |
504 | const unsigned char* pverdef = sd->verdef->data(); | |
505 | off_t verdef_size = sd->verdef_size; | |
506 | const unsigned int count = sd->verdef_info; | |
507 | ||
508 | const unsigned char* p = pverdef; | |
509 | for (unsigned int i = 0; i < count; ++i) | |
510 | { | |
511 | elfcpp::Verdef<size, big_endian> verdef(p); | |
512 | ||
513 | const unsigned int vd_cnt = verdef.get_vd_cnt(); | |
514 | if (vd_cnt < 1) | |
515 | { | |
516 | fprintf(stderr, _("%s: %s: verdef vd_cnt field too small: %u\n"), | |
517 | program_name, this->name().c_str(), vd_cnt); | |
518 | gold_exit(false); | |
519 | } | |
520 | ||
521 | const unsigned int vd_aux = verdef.get_vd_aux(); | |
522 | if ((p - pverdef) + vd_aux >= verdef_size) | |
523 | { | |
524 | fprintf(stderr, | |
525 | _("%s: %s: verdef vd_aux field out of range: %u\n"), | |
526 | program_name, this->name().c_str(), vd_aux); | |
527 | gold_exit(false); | |
528 | } | |
529 | ||
530 | const unsigned char* pvda = p + vd_aux; | |
531 | elfcpp::Verdaux<size, big_endian> verdaux(pvda); | |
532 | ||
533 | const unsigned int vda_name = verdaux.get_vda_name(); | |
534 | if (vda_name >= names_size) | |
535 | { | |
536 | fprintf(stderr, | |
537 | _("%s: %s: verdaux vda_name field out of range: %u\n"), | |
538 | program_name, this->name().c_str(), vda_name); | |
539 | gold_exit(false); | |
540 | } | |
541 | ||
542 | this->set_version_map(version_map, verdef.get_vd_ndx(), | |
543 | names + vda_name); | |
544 | ||
545 | const unsigned int vd_next = verdef.get_vd_next(); | |
546 | if ((p - pverdef) + vd_next >= verdef_size) | |
547 | { | |
548 | fprintf(stderr, | |
549 | _("%s: %s: verdef vd_next field out of range: %u\n"), | |
550 | program_name, this->name().c_str(), vd_next); | |
551 | gold_exit(false); | |
552 | } | |
553 | ||
554 | p += vd_next; | |
555 | } | |
556 | } | |
557 | ||
558 | if (sd->verneed != NULL) | |
559 | { | |
560 | const unsigned char* pverneed = sd->verneed->data(); | |
561 | const unsigned int count = sd->verneed_info; | |
562 | ||
563 | const unsigned char* p = pverneed; | |
564 | for (unsigned int i = 0; i < count; ++i) | |
565 | { | |
566 | elfcpp::Verneed<size, big_endian> verneed(p); | |
567 | ||
568 | const unsigned int vn_aux = verneed.get_vn_aux(); | |
569 | const unsigned int vn_cnt = verneed.get_vn_cnt(); | |
570 | const unsigned char* pvna = p + vn_aux; | |
571 | for (unsigned int j = 0; j < vn_cnt; ++j) | |
572 | { | |
573 | elfcpp::Vernaux<size, big_endian> vernaux(pvna); | |
574 | ||
575 | const unsigned int vna_name = vernaux.get_vna_name(); | |
576 | if (vna_name >= names_size) | |
577 | { | |
578 | fprintf(stderr, | |
579 | _("%s: %s: vernaux vna_name field " | |
580 | "out of range: %u\n"), | |
581 | program_name, this->name().c_str(), vna_name); | |
582 | gold_exit(false); | |
583 | } | |
584 | ||
585 | this->set_version_map(version_map, vernaux.get_vna_other(), | |
586 | names + vna_name); | |
587 | ||
588 | pvna += vernaux.get_vna_next(); | |
589 | } | |
590 | ||
591 | p += verneed.get_vn_next(); | |
592 | } | |
593 | } | |
594 | } | |
595 | ||
596 | // Add the dynamic symbols to the symbol table. | |
597 | ||
598 | template<int size, bool big_endian> | |
599 | void | |
600 | Sized_dynobj<size, big_endian>::do_add_symbols(Symbol_table* symtab, | |
601 | Read_symbols_data* sd) | |
602 | { | |
603 | if (sd->symbols == NULL) | |
604 | { | |
605 | assert(sd->symbol_names == NULL); | |
606 | assert(sd->versym == NULL && sd->verdef == NULL && sd->verneed == NULL); | |
607 | return; | |
608 | } | |
609 | ||
610 | const int sym_size = This::sym_size; | |
611 | const size_t symcount = sd->symbols_size / sym_size; | |
612 | if (symcount * sym_size != sd->symbols_size) | |
613 | { | |
614 | fprintf(stderr, | |
615 | _("%s: %s: size of dynamic symbols is not " | |
616 | "multiple of symbol size\n"), | |
617 | program_name, this->name().c_str()); | |
618 | gold_exit(false); | |
619 | } | |
620 | ||
621 | Version_map version_map; | |
622 | this->make_version_map(sd, &version_map); | |
623 | ||
624 | const char* sym_names = | |
625 | reinterpret_cast<const char*>(sd->symbol_names->data()); | |
626 | symtab->add_from_dynobj(this, sd->symbols->data(), symcount, | |
627 | sym_names, sd->symbol_names_size, | |
628 | (sd->versym == NULL | |
629 | ? NULL | |
630 | : sd->versym->data()), | |
631 | sd->versym_size, | |
632 | &version_map); | |
633 | ||
634 | delete sd->symbols; | |
635 | sd->symbols = NULL; | |
636 | delete sd->symbol_names; | |
637 | sd->symbol_names = NULL; | |
638 | if (sd->versym != NULL) | |
639 | { | |
640 | delete sd->versym; | |
641 | sd->versym = NULL; | |
642 | } | |
643 | if (sd->verdef != NULL) | |
644 | { | |
645 | delete sd->verdef; | |
646 | sd->verdef = NULL; | |
647 | } | |
648 | if (sd->verneed != NULL) | |
649 | { | |
650 | delete sd->verneed; | |
651 | sd->verneed = NULL; | |
652 | } | |
653 | } | |
654 | ||
655 | // Instantiate the templates we need. We could use the configure | |
656 | // script to restrict this to only the ones for implemented targets. | |
657 | ||
658 | template | |
659 | class Sized_dynobj<32, false>; | |
660 | ||
661 | template | |
662 | class Sized_dynobj<32, true>; | |
663 | ||
664 | template | |
665 | class Sized_dynobj<64, false>; | |
666 | ||
667 | template | |
668 | class Sized_dynobj<64, true>; | |
669 | ||
670 | } // End namespace gold. |