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dbe717ef ILT |
1 | // dynobj.cc -- dynamic object support 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 | ||
dbe717ef ILT |
23 | #include "gold.h" |
24 | ||
25 | #include <vector> | |
26 | #include <cstring> | |
27 | ||
a3ad94ed | 28 | #include "elfcpp.h" |
7e1edb90 | 29 | #include "parameters.h" |
dbe717ef ILT |
30 | #include "symtab.h" |
31 | #include "dynobj.h" | |
32 | ||
33 | namespace gold | |
34 | { | |
35 | ||
a3ad94ed ILT |
36 | // Class Dynobj. |
37 | ||
a7a81c1d ILT |
38 | // Sets up the default soname_ to use, in the (rare) cases we never |
39 | // see a DT_SONAME entry. | |
40 | ||
41 | Dynobj::Dynobj(const std::string& name, Input_file* input_file, off_t offset) | |
e2827e5f ILT |
42 | : Object(name, input_file, true, offset), |
43 | needed_(), | |
44 | unknown_needed_(UNKNOWN_NEEDED_UNSET) | |
a7a81c1d ILT |
45 | { |
46 | // This will be overridden by a DT_SONAME entry, hopefully. But if | |
47 | // we never see a DT_SONAME entry, our rule is to use the dynamic | |
48 | // object's filename. The only exception is when the dynamic object | |
49 | // is part of an archive (so the filename is the archive's | |
50 | // filename). In that case, we use just the dynobj's name-in-archive. | |
51 | this->soname_ = this->input_file()->found_name(); | |
52 | if (this->offset() != 0) | |
53 | { | |
54 | std::string::size_type open_paren = this->name().find('('); | |
55 | std::string::size_type close_paren = this->name().find(')'); | |
56 | if (open_paren != std::string::npos && close_paren != std::string::npos) | |
57 | { | |
58 | // It's an archive, and name() is of the form 'foo.a(bar.so)'. | |
59 | this->soname_ = this->name().substr(open_paren + 1, | |
60 | close_paren - (open_paren + 1)); | |
61 | } | |
62 | } | |
63 | } | |
64 | ||
dbe717ef ILT |
65 | // Class Sized_dynobj. |
66 | ||
67 | template<int size, bool big_endian> | |
68 | Sized_dynobj<size, big_endian>::Sized_dynobj( | |
69 | const std::string& name, | |
70 | Input_file* input_file, | |
71 | off_t offset, | |
72 | const elfcpp::Ehdr<size, big_endian>& ehdr) | |
73 | : Dynobj(name, input_file, offset), | |
a3ad94ed | 74 | elf_file_(this, ehdr) |
dbe717ef ILT |
75 | { |
76 | } | |
77 | ||
78 | // Set up the object. | |
79 | ||
80 | template<int size, bool big_endian> | |
81 | void | |
82 | Sized_dynobj<size, big_endian>::setup( | |
83 | const elfcpp::Ehdr<size, big_endian>& ehdr) | |
84 | { | |
85 | this->set_target(ehdr.get_e_machine(), size, big_endian, | |
86 | ehdr.get_e_ident()[elfcpp::EI_OSABI], | |
87 | ehdr.get_e_ident()[elfcpp::EI_ABIVERSION]); | |
88 | ||
89 | const unsigned int shnum = this->elf_file_.shnum(); | |
90 | this->set_shnum(shnum); | |
91 | } | |
92 | ||
93 | // Find the SHT_DYNSYM section and the various version sections, and | |
94 | // the dynamic section, given the section headers. | |
95 | ||
96 | template<int size, bool big_endian> | |
97 | void | |
98 | Sized_dynobj<size, big_endian>::find_dynsym_sections( | |
99 | const unsigned char* pshdrs, | |
100 | unsigned int* pdynsym_shndx, | |
101 | unsigned int* pversym_shndx, | |
102 | unsigned int* pverdef_shndx, | |
103 | unsigned int* pverneed_shndx, | |
104 | unsigned int* pdynamic_shndx) | |
105 | { | |
106 | *pdynsym_shndx = -1U; | |
107 | *pversym_shndx = -1U; | |
108 | *pverdef_shndx = -1U; | |
109 | *pverneed_shndx = -1U; | |
110 | *pdynamic_shndx = -1U; | |
111 | ||
112 | const unsigned int shnum = this->shnum(); | |
113 | const unsigned char* p = pshdrs; | |
114 | for (unsigned int i = 0; i < shnum; ++i, p += This::shdr_size) | |
115 | { | |
116 | typename This::Shdr shdr(p); | |
117 | ||
118 | unsigned int* pi; | |
119 | switch (shdr.get_sh_type()) | |
120 | { | |
121 | case elfcpp::SHT_DYNSYM: | |
122 | pi = pdynsym_shndx; | |
123 | break; | |
124 | case elfcpp::SHT_GNU_versym: | |
125 | pi = pversym_shndx; | |
126 | break; | |
127 | case elfcpp::SHT_GNU_verdef: | |
128 | pi = pverdef_shndx; | |
129 | break; | |
130 | case elfcpp::SHT_GNU_verneed: | |
131 | pi = pverneed_shndx; | |
132 | break; | |
133 | case elfcpp::SHT_DYNAMIC: | |
134 | pi = pdynamic_shndx; | |
135 | break; | |
136 | default: | |
137 | pi = NULL; | |
138 | break; | |
139 | } | |
140 | ||
141 | if (pi == NULL) | |
142 | continue; | |
143 | ||
144 | if (*pi != -1U) | |
75f2446e ILT |
145 | this->error(_("unexpected duplicate type %u section: %u, %u"), |
146 | shdr.get_sh_type(), *pi, i); | |
dbe717ef ILT |
147 | |
148 | *pi = i; | |
149 | } | |
150 | } | |
151 | ||
152 | // Read the contents of section SHNDX. PSHDRS points to the section | |
153 | // headers. TYPE is the expected section type. LINK is the expected | |
154 | // section link. Store the data in *VIEW and *VIEW_SIZE. The | |
155 | // section's sh_info field is stored in *VIEW_INFO. | |
156 | ||
157 | template<int size, bool big_endian> | |
158 | void | |
159 | Sized_dynobj<size, big_endian>::read_dynsym_section( | |
160 | const unsigned char* pshdrs, | |
161 | unsigned int shndx, | |
162 | elfcpp::SHT type, | |
163 | unsigned int link, | |
164 | File_view** view, | |
8383303e | 165 | section_size_type* view_size, |
dbe717ef ILT |
166 | unsigned int* view_info) |
167 | { | |
168 | if (shndx == -1U) | |
169 | { | |
170 | *view = NULL; | |
171 | *view_size = 0; | |
172 | *view_info = 0; | |
173 | return; | |
174 | } | |
175 | ||
176 | typename This::Shdr shdr(pshdrs + shndx * This::shdr_size); | |
177 | ||
a3ad94ed | 178 | gold_assert(shdr.get_sh_type() == type); |
dbe717ef ILT |
179 | |
180 | if (shdr.get_sh_link() != link) | |
75f2446e ILT |
181 | this->error(_("unexpected link in section %u header: %u != %u"), |
182 | shndx, shdr.get_sh_link(), link); | |
dbe717ef | 183 | |
9eb9fa57 ILT |
184 | *view = this->get_lasting_view(shdr.get_sh_offset(), shdr.get_sh_size(), |
185 | false); | |
8383303e | 186 | *view_size = convert_to_section_size_type(shdr.get_sh_size()); |
dbe717ef ILT |
187 | *view_info = shdr.get_sh_info(); |
188 | } | |
189 | ||
e2827e5f ILT |
190 | // Read the dynamic tags. Set the soname field if this shared object |
191 | // has a DT_SONAME tag. Record the DT_NEEDED tags. PSHDRS points to | |
192 | // the section headers. DYNAMIC_SHNDX is the section index of the | |
193 | // SHT_DYNAMIC section. STRTAB_SHNDX, STRTAB, and STRTAB_SIZE are the | |
194 | // section index and contents of a string table which may be the one | |
195 | // associated with the SHT_DYNAMIC section. | |
dbe717ef ILT |
196 | |
197 | template<int size, bool big_endian> | |
198 | void | |
e2827e5f ILT |
199 | Sized_dynobj<size, big_endian>::read_dynamic(const unsigned char* pshdrs, |
200 | unsigned int dynamic_shndx, | |
201 | unsigned int strtab_shndx, | |
202 | const unsigned char* strtabu, | |
203 | off_t strtab_size) | |
dbe717ef ILT |
204 | { |
205 | typename This::Shdr dynamicshdr(pshdrs + dynamic_shndx * This::shdr_size); | |
a3ad94ed | 206 | gold_assert(dynamicshdr.get_sh_type() == elfcpp::SHT_DYNAMIC); |
dbe717ef ILT |
207 | |
208 | const off_t dynamic_size = dynamicshdr.get_sh_size(); | |
209 | const unsigned char* pdynamic = this->get_view(dynamicshdr.get_sh_offset(), | |
9eb9fa57 | 210 | dynamic_size, false); |
dbe717ef ILT |
211 | |
212 | const unsigned int link = dynamicshdr.get_sh_link(); | |
213 | if (link != strtab_shndx) | |
214 | { | |
215 | if (link >= this->shnum()) | |
216 | { | |
75f2446e ILT |
217 | this->error(_("DYNAMIC section %u link out of range: %u"), |
218 | dynamic_shndx, link); | |
219 | return; | |
dbe717ef ILT |
220 | } |
221 | ||
222 | typename This::Shdr strtabshdr(pshdrs + link * This::shdr_size); | |
223 | if (strtabshdr.get_sh_type() != elfcpp::SHT_STRTAB) | |
224 | { | |
75f2446e ILT |
225 | this->error(_("DYNAMIC section %u link %u is not a strtab"), |
226 | dynamic_shndx, link); | |
227 | return; | |
dbe717ef ILT |
228 | } |
229 | ||
230 | strtab_size = strtabshdr.get_sh_size(); | |
9eb9fa57 | 231 | strtabu = this->get_view(strtabshdr.get_sh_offset(), strtab_size, false); |
dbe717ef ILT |
232 | } |
233 | ||
e2827e5f ILT |
234 | const char* const strtab = reinterpret_cast<const char*>(strtabu); |
235 | ||
dbe717ef ILT |
236 | for (const unsigned char* p = pdynamic; |
237 | p < pdynamic + dynamic_size; | |
238 | p += This::dyn_size) | |
239 | { | |
240 | typename This::Dyn dyn(p); | |
241 | ||
e2827e5f | 242 | switch (dyn.get_d_tag()) |
dbe717ef | 243 | { |
e2827e5f ILT |
244 | case elfcpp::DT_NULL: |
245 | // We should always see DT_NULL at the end of the dynamic | |
246 | // tags. | |
247 | return; | |
248 | ||
249 | case elfcpp::DT_SONAME: | |
250 | { | |
251 | off_t val = dyn.get_d_val(); | |
252 | if (val >= strtab_size) | |
75f2446e | 253 | this->error(_("DT_SONAME value out of range: %lld >= %lld"), |
e2827e5f ILT |
254 | static_cast<long long>(val), |
255 | static_cast<long long>(strtab_size)); | |
256 | else | |
257 | this->set_soname_string(strtab + val); | |
258 | } | |
259 | break; | |
dbe717ef | 260 | |
e2827e5f ILT |
261 | case elfcpp::DT_NEEDED: |
262 | { | |
263 | off_t val = dyn.get_d_val(); | |
264 | if (val >= strtab_size) | |
265 | this->error(_("DT_NEEDED value out of range: %lld >= %lld"), | |
266 | static_cast<long long>(val), | |
267 | static_cast<long long>(strtab_size)); | |
268 | else | |
269 | this->add_needed(strtab + val); | |
270 | } | |
271 | break; | |
dbe717ef | 272 | |
e2827e5f ILT |
273 | default: |
274 | break; | |
275 | } | |
dbe717ef ILT |
276 | } |
277 | ||
75f2446e | 278 | this->error(_("missing DT_NULL in dynamic segment")); |
dbe717ef ILT |
279 | } |
280 | ||
281 | // Read the symbols and sections from a dynamic object. We read the | |
282 | // dynamic symbols, not the normal symbols. | |
283 | ||
284 | template<int size, bool big_endian> | |
285 | void | |
286 | Sized_dynobj<size, big_endian>::do_read_symbols(Read_symbols_data* sd) | |
287 | { | |
288 | this->read_section_data(&this->elf_file_, sd); | |
289 | ||
290 | const unsigned char* const pshdrs = sd->section_headers->data(); | |
291 | ||
292 | unsigned int dynsym_shndx; | |
293 | unsigned int versym_shndx; | |
294 | unsigned int verdef_shndx; | |
295 | unsigned int verneed_shndx; | |
296 | unsigned int dynamic_shndx; | |
297 | this->find_dynsym_sections(pshdrs, &dynsym_shndx, &versym_shndx, | |
298 | &verdef_shndx, &verneed_shndx, &dynamic_shndx); | |
299 | ||
300 | unsigned int strtab_shndx = -1U; | |
301 | ||
75f2446e ILT |
302 | sd->symbols = NULL; |
303 | sd->symbols_size = 0; | |
730cdc88 | 304 | sd->external_symbols_offset = 0; |
75f2446e ILT |
305 | sd->symbol_names = NULL; |
306 | sd->symbol_names_size = 0; | |
307 | ||
308 | if (dynsym_shndx != -1U) | |
dbe717ef ILT |
309 | { |
310 | // Get the dynamic symbols. | |
311 | typename This::Shdr dynsymshdr(pshdrs + dynsym_shndx * This::shdr_size); | |
a3ad94ed | 312 | gold_assert(dynsymshdr.get_sh_type() == elfcpp::SHT_DYNSYM); |
dbe717ef ILT |
313 | |
314 | sd->symbols = this->get_lasting_view(dynsymshdr.get_sh_offset(), | |
9eb9fa57 | 315 | dynsymshdr.get_sh_size(), false); |
8383303e ILT |
316 | sd->symbols_size = |
317 | convert_to_section_size_type(dynsymshdr.get_sh_size()); | |
dbe717ef ILT |
318 | |
319 | // Get the symbol names. | |
320 | strtab_shndx = dynsymshdr.get_sh_link(); | |
321 | if (strtab_shndx >= this->shnum()) | |
322 | { | |
75f2446e ILT |
323 | this->error(_("invalid dynamic symbol table name index: %u"), |
324 | strtab_shndx); | |
325 | return; | |
dbe717ef ILT |
326 | } |
327 | typename This::Shdr strtabshdr(pshdrs + strtab_shndx * This::shdr_size); | |
328 | if (strtabshdr.get_sh_type() != elfcpp::SHT_STRTAB) | |
329 | { | |
75f2446e ILT |
330 | this->error(_("dynamic symbol table name section " |
331 | "has wrong type: %u"), | |
332 | static_cast<unsigned int>(strtabshdr.get_sh_type())); | |
333 | return; | |
dbe717ef ILT |
334 | } |
335 | ||
336 | sd->symbol_names = this->get_lasting_view(strtabshdr.get_sh_offset(), | |
9eb9fa57 ILT |
337 | strtabshdr.get_sh_size(), |
338 | true); | |
8383303e ILT |
339 | sd->symbol_names_size = |
340 | convert_to_section_size_type(strtabshdr.get_sh_size()); | |
dbe717ef ILT |
341 | |
342 | // Get the version information. | |
343 | ||
344 | unsigned int dummy; | |
345 | this->read_dynsym_section(pshdrs, versym_shndx, elfcpp::SHT_GNU_versym, | |
346 | dynsym_shndx, &sd->versym, &sd->versym_size, | |
347 | &dummy); | |
348 | ||
349 | // We require that the version definition and need section link | |
350 | // to the same string table as the dynamic symbol table. This | |
351 | // is not a technical requirement, but it always happens in | |
352 | // practice. We could change this if necessary. | |
353 | ||
354 | this->read_dynsym_section(pshdrs, verdef_shndx, elfcpp::SHT_GNU_verdef, | |
355 | strtab_shndx, &sd->verdef, &sd->verdef_size, | |
356 | &sd->verdef_info); | |
357 | ||
358 | this->read_dynsym_section(pshdrs, verneed_shndx, elfcpp::SHT_GNU_verneed, | |
359 | strtab_shndx, &sd->verneed, &sd->verneed_size, | |
360 | &sd->verneed_info); | |
361 | } | |
362 | ||
363 | // Read the SHT_DYNAMIC section to find whether this shared object | |
e2827e5f ILT |
364 | // has a DT_SONAME tag and to record any DT_NEEDED tags. This |
365 | // doesn't really have anything to do with reading the symbols, but | |
366 | // this is a convenient place to do it. | |
dbe717ef | 367 | if (dynamic_shndx != -1U) |
e2827e5f ILT |
368 | this->read_dynamic(pshdrs, dynamic_shndx, strtab_shndx, |
369 | (sd->symbol_names == NULL | |
370 | ? NULL | |
371 | : sd->symbol_names->data()), | |
372 | sd->symbol_names_size); | |
dbe717ef ILT |
373 | } |
374 | ||
375 | // Lay out the input sections for a dynamic object. We don't want to | |
376 | // include sections from a dynamic object, so all that we actually do | |
377 | // here is check for .gnu.warning sections. | |
378 | ||
379 | template<int size, bool big_endian> | |
380 | void | |
7e1edb90 | 381 | Sized_dynobj<size, big_endian>::do_layout(Symbol_table* symtab, |
dbe717ef ILT |
382 | Layout*, |
383 | Read_symbols_data* sd) | |
384 | { | |
385 | const unsigned int shnum = this->shnum(); | |
386 | if (shnum == 0) | |
387 | return; | |
388 | ||
389 | // Get the section headers. | |
390 | const unsigned char* pshdrs = sd->section_headers->data(); | |
391 | ||
392 | // Get the section names. | |
393 | const unsigned char* pnamesu = sd->section_names->data(); | |
394 | const char* pnames = reinterpret_cast<const char*>(pnamesu); | |
395 | ||
396 | // Skip the first, dummy, section. | |
397 | pshdrs += This::shdr_size; | |
398 | for (unsigned int i = 1; i < shnum; ++i, pshdrs += This::shdr_size) | |
399 | { | |
400 | typename This::Shdr shdr(pshdrs); | |
401 | ||
402 | if (shdr.get_sh_name() >= sd->section_names_size) | |
403 | { | |
75f2446e ILT |
404 | this->error(_("bad section name offset for section %u: %lu"), |
405 | i, static_cast<unsigned long>(shdr.get_sh_name())); | |
406 | return; | |
dbe717ef ILT |
407 | } |
408 | ||
409 | const char* name = pnames + shdr.get_sh_name(); | |
410 | ||
411 | this->handle_gnu_warning_section(name, i, symtab); | |
412 | } | |
413 | ||
414 | delete sd->section_headers; | |
415 | sd->section_headers = NULL; | |
416 | delete sd->section_names; | |
417 | sd->section_names = NULL; | |
418 | } | |
419 | ||
420 | // Add an entry to the vector mapping version numbers to version | |
421 | // strings. | |
422 | ||
423 | template<int size, bool big_endian> | |
424 | void | |
425 | Sized_dynobj<size, big_endian>::set_version_map( | |
426 | Version_map* version_map, | |
427 | unsigned int ndx, | |
428 | const char* name) const | |
429 | { | |
14b31740 ILT |
430 | if (ndx >= version_map->size()) |
431 | version_map->resize(ndx + 1); | |
dbe717ef | 432 | if ((*version_map)[ndx] != NULL) |
75f2446e | 433 | this->error(_("duplicate definition for version %u"), ndx); |
dbe717ef ILT |
434 | (*version_map)[ndx] = name; |
435 | } | |
436 | ||
14b31740 | 437 | // Add mappings for the version definitions to VERSION_MAP. |
dbe717ef ILT |
438 | |
439 | template<int size, bool big_endian> | |
440 | void | |
14b31740 | 441 | Sized_dynobj<size, big_endian>::make_verdef_map( |
dbe717ef ILT |
442 | Read_symbols_data* sd, |
443 | Version_map* version_map) const | |
444 | { | |
14b31740 | 445 | if (sd->verdef == NULL) |
dbe717ef ILT |
446 | return; |
447 | ||
14b31740 | 448 | const char* names = reinterpret_cast<const char*>(sd->symbol_names->data()); |
8383303e | 449 | section_size_type names_size = sd->symbol_names_size; |
dbe717ef | 450 | |
14b31740 | 451 | const unsigned char* pverdef = sd->verdef->data(); |
8383303e | 452 | section_size_type verdef_size = sd->verdef_size; |
14b31740 ILT |
453 | const unsigned int count = sd->verdef_info; |
454 | ||
455 | const unsigned char* p = pverdef; | |
456 | for (unsigned int i = 0; i < count; ++i) | |
dbe717ef | 457 | { |
14b31740 | 458 | elfcpp::Verdef<size, big_endian> verdef(p); |
dbe717ef | 459 | |
14b31740 | 460 | if (verdef.get_vd_version() != elfcpp::VER_DEF_CURRENT) |
dbe717ef | 461 | { |
75f2446e ILT |
462 | this->error(_("unexpected verdef version %u"), |
463 | verdef.get_vd_version()); | |
464 | return; | |
14b31740 | 465 | } |
dbe717ef | 466 | |
14b31740 | 467 | const unsigned int vd_ndx = verdef.get_vd_ndx(); |
dbe717ef | 468 | |
14b31740 ILT |
469 | // The GNU linker clears the VERSYM_HIDDEN bit. I'm not |
470 | // sure why. | |
dbe717ef | 471 | |
14b31740 ILT |
472 | // The first Verdaux holds the name of this version. Subsequent |
473 | // ones are versions that this one depends upon, which we don't | |
474 | // care about here. | |
475 | const unsigned int vd_cnt = verdef.get_vd_cnt(); | |
476 | if (vd_cnt < 1) | |
477 | { | |
75f2446e ILT |
478 | this->error(_("verdef vd_cnt field too small: %u"), vd_cnt); |
479 | return; | |
dbe717ef | 480 | } |
dbe717ef | 481 | |
14b31740 ILT |
482 | const unsigned int vd_aux = verdef.get_vd_aux(); |
483 | if ((p - pverdef) + vd_aux >= verdef_size) | |
dbe717ef | 484 | { |
75f2446e ILT |
485 | this->error(_("verdef vd_aux field out of range: %u"), vd_aux); |
486 | return; | |
14b31740 | 487 | } |
dbe717ef | 488 | |
14b31740 ILT |
489 | const unsigned char* pvda = p + vd_aux; |
490 | elfcpp::Verdaux<size, big_endian> verdaux(pvda); | |
dbe717ef | 491 | |
14b31740 ILT |
492 | const unsigned int vda_name = verdaux.get_vda_name(); |
493 | if (vda_name >= names_size) | |
494 | { | |
75f2446e ILT |
495 | this->error(_("verdaux vda_name field out of range: %u"), vda_name); |
496 | return; | |
14b31740 | 497 | } |
dbe717ef | 498 | |
14b31740 | 499 | this->set_version_map(version_map, vd_ndx, names + vda_name); |
dbe717ef | 500 | |
14b31740 ILT |
501 | const unsigned int vd_next = verdef.get_vd_next(); |
502 | if ((p - pverdef) + vd_next >= verdef_size) | |
503 | { | |
75f2446e ILT |
504 | this->error(_("verdef vd_next field out of range: %u"), vd_next); |
505 | return; | |
dbe717ef | 506 | } |
14b31740 ILT |
507 | |
508 | p += vd_next; | |
dbe717ef | 509 | } |
14b31740 | 510 | } |
dbe717ef | 511 | |
14b31740 | 512 | // Add mappings for the required versions to VERSION_MAP. |
dbe717ef | 513 | |
14b31740 ILT |
514 | template<int size, bool big_endian> |
515 | void | |
516 | Sized_dynobj<size, big_endian>::make_verneed_map( | |
517 | Read_symbols_data* sd, | |
518 | Version_map* version_map) const | |
519 | { | |
520 | if (sd->verneed == NULL) | |
521 | return; | |
dbe717ef ILT |
522 | |
523 | const char* names = reinterpret_cast<const char*>(sd->symbol_names->data()); | |
8383303e | 524 | section_size_type names_size = sd->symbol_names_size; |
dbe717ef | 525 | |
14b31740 | 526 | const unsigned char* pverneed = sd->verneed->data(); |
8383303e | 527 | const section_size_type verneed_size = sd->verneed_size; |
14b31740 ILT |
528 | const unsigned int count = sd->verneed_info; |
529 | ||
530 | const unsigned char* p = pverneed; | |
531 | for (unsigned int i = 0; i < count; ++i) | |
dbe717ef | 532 | { |
14b31740 | 533 | elfcpp::Verneed<size, big_endian> verneed(p); |
dbe717ef | 534 | |
14b31740 | 535 | if (verneed.get_vn_version() != elfcpp::VER_NEED_CURRENT) |
dbe717ef | 536 | { |
75f2446e ILT |
537 | this->error(_("unexpected verneed version %u"), |
538 | verneed.get_vn_version()); | |
539 | return; | |
14b31740 | 540 | } |
dbe717ef | 541 | |
14b31740 | 542 | const unsigned int vn_aux = verneed.get_vn_aux(); |
dbe717ef | 543 | |
14b31740 ILT |
544 | if ((p - pverneed) + vn_aux >= verneed_size) |
545 | { | |
75f2446e ILT |
546 | this->error(_("verneed vn_aux field out of range: %u"), vn_aux); |
547 | return; | |
14b31740 | 548 | } |
dbe717ef | 549 | |
14b31740 ILT |
550 | const unsigned int vn_cnt = verneed.get_vn_cnt(); |
551 | const unsigned char* pvna = p + vn_aux; | |
552 | for (unsigned int j = 0; j < vn_cnt; ++j) | |
553 | { | |
554 | elfcpp::Vernaux<size, big_endian> vernaux(pvna); | |
dbe717ef | 555 | |
14b31740 ILT |
556 | const unsigned int vna_name = vernaux.get_vna_name(); |
557 | if (vna_name >= names_size) | |
dbe717ef | 558 | { |
75f2446e ILT |
559 | this->error(_("vernaux vna_name field out of range: %u"), |
560 | vna_name); | |
561 | return; | |
dbe717ef ILT |
562 | } |
563 | ||
14b31740 ILT |
564 | this->set_version_map(version_map, vernaux.get_vna_other(), |
565 | names + vna_name); | |
dbe717ef | 566 | |
14b31740 ILT |
567 | const unsigned int vna_next = vernaux.get_vna_next(); |
568 | if ((pvna - pverneed) + vna_next >= verneed_size) | |
dbe717ef | 569 | { |
75f2446e ILT |
570 | this->error(_("verneed vna_next field out of range: %u"), |
571 | vna_next); | |
572 | return; | |
dbe717ef ILT |
573 | } |
574 | ||
14b31740 ILT |
575 | pvna += vna_next; |
576 | } | |
577 | ||
578 | const unsigned int vn_next = verneed.get_vn_next(); | |
579 | if ((p - pverneed) + vn_next >= verneed_size) | |
580 | { | |
75f2446e ILT |
581 | this->error(_("verneed vn_next field out of range: %u"), vn_next); |
582 | return; | |
dbe717ef | 583 | } |
14b31740 ILT |
584 | |
585 | p += vn_next; | |
dbe717ef | 586 | } |
14b31740 | 587 | } |
dbe717ef | 588 | |
14b31740 | 589 | // Create a vector mapping version numbers to version strings. |
dbe717ef | 590 | |
14b31740 ILT |
591 | template<int size, bool big_endian> |
592 | void | |
593 | Sized_dynobj<size, big_endian>::make_version_map( | |
594 | Read_symbols_data* sd, | |
595 | Version_map* version_map) const | |
596 | { | |
597 | if (sd->verdef == NULL && sd->verneed == NULL) | |
598 | return; | |
dbe717ef | 599 | |
14b31740 ILT |
600 | // A guess at the maximum version number we will see. If this is |
601 | // wrong we will be less efficient but still correct. | |
602 | version_map->reserve(sd->verdef_info + sd->verneed_info * 10); | |
dbe717ef | 603 | |
14b31740 ILT |
604 | this->make_verdef_map(sd, version_map); |
605 | this->make_verneed_map(sd, version_map); | |
dbe717ef ILT |
606 | } |
607 | ||
608 | // Add the dynamic symbols to the symbol table. | |
609 | ||
610 | template<int size, bool big_endian> | |
611 | void | |
612 | Sized_dynobj<size, big_endian>::do_add_symbols(Symbol_table* symtab, | |
613 | Read_symbols_data* sd) | |
614 | { | |
615 | if (sd->symbols == NULL) | |
616 | { | |
a3ad94ed ILT |
617 | gold_assert(sd->symbol_names == NULL); |
618 | gold_assert(sd->versym == NULL && sd->verdef == NULL | |
619 | && sd->verneed == NULL); | |
dbe717ef ILT |
620 | return; |
621 | } | |
622 | ||
623 | const int sym_size = This::sym_size; | |
624 | const size_t symcount = sd->symbols_size / sym_size; | |
730cdc88 | 625 | gold_assert(sd->external_symbols_offset == 0); |
8383303e | 626 | if (symcount * sym_size != sd->symbols_size) |
dbe717ef | 627 | { |
75f2446e ILT |
628 | this->error(_("size of dynamic symbols is not multiple of symbol size")); |
629 | return; | |
dbe717ef ILT |
630 | } |
631 | ||
632 | Version_map version_map; | |
633 | this->make_version_map(sd, &version_map); | |
634 | ||
635 | const char* sym_names = | |
636 | reinterpret_cast<const char*>(sd->symbol_names->data()); | |
637 | symtab->add_from_dynobj(this, sd->symbols->data(), symcount, | |
638 | sym_names, sd->symbol_names_size, | |
639 | (sd->versym == NULL | |
640 | ? NULL | |
641 | : sd->versym->data()), | |
642 | sd->versym_size, | |
643 | &version_map); | |
644 | ||
645 | delete sd->symbols; | |
646 | sd->symbols = NULL; | |
647 | delete sd->symbol_names; | |
648 | sd->symbol_names = NULL; | |
649 | if (sd->versym != NULL) | |
650 | { | |
651 | delete sd->versym; | |
652 | sd->versym = NULL; | |
653 | } | |
654 | if (sd->verdef != NULL) | |
655 | { | |
656 | delete sd->verdef; | |
657 | sd->verdef = NULL; | |
658 | } | |
659 | if (sd->verneed != NULL) | |
660 | { | |
661 | delete sd->verneed; | |
662 | sd->verneed = NULL; | |
663 | } | |
664 | } | |
665 | ||
a3ad94ed ILT |
666 | // Given a vector of hash codes, compute the number of hash buckets to |
667 | // use. | |
668 | ||
669 | unsigned int | |
670 | Dynobj::compute_bucket_count(const std::vector<uint32_t>& hashcodes, | |
671 | bool for_gnu_hash_table) | |
672 | { | |
673 | // FIXME: Implement optional hash table optimization. | |
674 | ||
675 | // Array used to determine the number of hash table buckets to use | |
676 | // based on the number of symbols there are. If there are fewer | |
677 | // than 3 symbols we use 1 bucket, fewer than 17 symbols we use 3 | |
678 | // buckets, fewer than 37 we use 17 buckets, and so forth. We never | |
679 | // use more than 32771 buckets. This is straight from the old GNU | |
680 | // linker. | |
681 | static const unsigned int buckets[] = | |
682 | { | |
683 | 1, 3, 17, 37, 67, 97, 131, 197, 263, 521, 1031, 2053, 4099, 8209, | |
684 | 16411, 32771 | |
685 | }; | |
686 | const int buckets_count = sizeof buckets / sizeof buckets[0]; | |
687 | ||
688 | unsigned int symcount = hashcodes.size(); | |
689 | unsigned int ret = 1; | |
690 | for (int i = 0; i < buckets_count; ++i) | |
691 | { | |
692 | if (symcount < buckets[i]) | |
693 | break; | |
694 | ret = buckets[i]; | |
695 | } | |
696 | ||
697 | if (for_gnu_hash_table && ret < 2) | |
698 | ret = 2; | |
699 | ||
700 | return ret; | |
701 | } | |
702 | ||
703 | // The standard ELF hash function. This hash function must not | |
704 | // change, as the dynamic linker uses it also. | |
705 | ||
706 | uint32_t | |
707 | Dynobj::elf_hash(const char* name) | |
708 | { | |
709 | const unsigned char* nameu = reinterpret_cast<const unsigned char*>(name); | |
710 | uint32_t h = 0; | |
711 | unsigned char c; | |
712 | while ((c = *nameu++) != '\0') | |
713 | { | |
714 | h = (h << 4) + c; | |
715 | uint32_t g = h & 0xf0000000; | |
716 | if (g != 0) | |
717 | { | |
718 | h ^= g >> 24; | |
719 | // The ELF ABI says h &= ~g, but using xor is equivalent in | |
720 | // this case (since g was set from h) and may save one | |
721 | // instruction. | |
722 | h ^= g; | |
723 | } | |
724 | } | |
725 | return h; | |
726 | } | |
727 | ||
728 | // Create a standard ELF hash table, setting *PPHASH and *PHASHLEN. | |
729 | // DYNSYMS is a vector with all the global dynamic symbols. | |
730 | // LOCAL_DYNSYM_COUNT is the number of local symbols in the dynamic | |
731 | // symbol table. | |
732 | ||
733 | void | |
9025d29d | 734 | Dynobj::create_elf_hash_table(const std::vector<Symbol*>& dynsyms, |
a3ad94ed ILT |
735 | unsigned int local_dynsym_count, |
736 | unsigned char** pphash, | |
737 | unsigned int* phashlen) | |
738 | { | |
739 | unsigned int dynsym_count = dynsyms.size(); | |
740 | ||
741 | // Get the hash values for all the symbols. | |
742 | std::vector<uint32_t> dynsym_hashvals(dynsym_count); | |
743 | for (unsigned int i = 0; i < dynsym_count; ++i) | |
744 | dynsym_hashvals[i] = Dynobj::elf_hash(dynsyms[i]->name()); | |
745 | ||
746 | const unsigned int bucketcount = | |
747 | Dynobj::compute_bucket_count(dynsym_hashvals, false); | |
748 | ||
749 | std::vector<uint32_t> bucket(bucketcount); | |
750 | std::vector<uint32_t> chain(local_dynsym_count + dynsym_count); | |
751 | ||
752 | for (unsigned int i = 0; i < dynsym_count; ++i) | |
753 | { | |
754 | unsigned int dynsym_index = dynsyms[i]->dynsym_index(); | |
755 | unsigned int bucketpos = dynsym_hashvals[i] % bucketcount; | |
756 | chain[dynsym_index] = bucket[bucketpos]; | |
757 | bucket[bucketpos] = dynsym_index; | |
758 | } | |
759 | ||
760 | unsigned int hashlen = ((2 | |
761 | + bucketcount | |
762 | + local_dynsym_count | |
763 | + dynsym_count) | |
764 | * 4); | |
765 | unsigned char* phash = new unsigned char[hashlen]; | |
766 | ||
9025d29d ILT |
767 | if (parameters->is_big_endian()) |
768 | { | |
769 | #if defined(HAVE_TARGET_32_BIG) || defined(HAVE_TARGET_64_BIG) | |
770 | Dynobj::sized_create_elf_hash_table<true>(bucket, chain, phash, | |
771 | hashlen); | |
772 | #else | |
773 | gold_unreachable(); | |
774 | #endif | |
775 | } | |
a3ad94ed | 776 | else |
9025d29d ILT |
777 | { |
778 | #if defined(HAVE_TARGET_32_LITTLE) || defined(HAVE_TARGET_64_LITTLE) | |
779 | Dynobj::sized_create_elf_hash_table<false>(bucket, chain, phash, | |
780 | hashlen); | |
781 | #else | |
782 | gold_unreachable(); | |
783 | #endif | |
784 | } | |
a3ad94ed ILT |
785 | |
786 | *pphash = phash; | |
787 | *phashlen = hashlen; | |
788 | } | |
789 | ||
790 | // Fill in an ELF hash table. | |
791 | ||
792 | template<bool big_endian> | |
793 | void | |
794 | Dynobj::sized_create_elf_hash_table(const std::vector<uint32_t>& bucket, | |
795 | const std::vector<uint32_t>& chain, | |
796 | unsigned char* phash, | |
797 | unsigned int hashlen) | |
798 | { | |
799 | unsigned char* p = phash; | |
800 | ||
801 | const unsigned int bucketcount = bucket.size(); | |
802 | const unsigned int chaincount = chain.size(); | |
803 | ||
804 | elfcpp::Swap<32, big_endian>::writeval(p, bucketcount); | |
805 | p += 4; | |
806 | elfcpp::Swap<32, big_endian>::writeval(p, chaincount); | |
807 | p += 4; | |
808 | ||
809 | for (unsigned int i = 0; i < bucketcount; ++i) | |
810 | { | |
811 | elfcpp::Swap<32, big_endian>::writeval(p, bucket[i]); | |
812 | p += 4; | |
813 | } | |
814 | ||
815 | for (unsigned int i = 0; i < chaincount; ++i) | |
816 | { | |
817 | elfcpp::Swap<32, big_endian>::writeval(p, chain[i]); | |
818 | p += 4; | |
819 | } | |
820 | ||
821 | gold_assert(static_cast<unsigned int>(p - phash) == hashlen); | |
822 | } | |
823 | ||
824 | // The hash function used for the GNU hash table. This hash function | |
825 | // must not change, as the dynamic linker uses it also. | |
826 | ||
827 | uint32_t | |
828 | Dynobj::gnu_hash(const char* name) | |
829 | { | |
830 | const unsigned char* nameu = reinterpret_cast<const unsigned char*>(name); | |
831 | uint32_t h = 5381; | |
832 | unsigned char c; | |
833 | while ((c = *nameu++) != '\0') | |
834 | h = (h << 5) + h + c; | |
835 | return h; | |
836 | } | |
837 | ||
838 | // Create a GNU hash table, setting *PPHASH and *PHASHLEN. GNU hash | |
839 | // tables are an extension to ELF which are recognized by the GNU | |
840 | // dynamic linker. They are referenced using dynamic tag DT_GNU_HASH. | |
841 | // TARGET is the target. DYNSYMS is a vector with all the global | |
842 | // symbols which will be going into the dynamic symbol table. | |
843 | // LOCAL_DYNSYM_COUNT is the number of local symbols in the dynamic | |
844 | // symbol table. | |
845 | ||
846 | void | |
9025d29d | 847 | Dynobj::create_gnu_hash_table(const std::vector<Symbol*>& dynsyms, |
a3ad94ed ILT |
848 | unsigned int local_dynsym_count, |
849 | unsigned char** pphash, | |
850 | unsigned int* phashlen) | |
851 | { | |
852 | const unsigned int count = dynsyms.size(); | |
853 | ||
854 | // Sort the dynamic symbols into two vectors. Symbols which we do | |
855 | // not want to put into the hash table we store into | |
856 | // UNHASHED_DYNSYMS. Symbols which we do want to store we put into | |
857 | // HASHED_DYNSYMS. DYNSYM_HASHVALS is parallel to HASHED_DYNSYMS, | |
858 | // and records the hash codes. | |
859 | ||
860 | std::vector<Symbol*> unhashed_dynsyms; | |
861 | unhashed_dynsyms.reserve(count); | |
862 | ||
863 | std::vector<Symbol*> hashed_dynsyms; | |
864 | hashed_dynsyms.reserve(count); | |
865 | ||
866 | std::vector<uint32_t> dynsym_hashvals; | |
867 | dynsym_hashvals.reserve(count); | |
868 | ||
869 | for (unsigned int i = 0; i < count; ++i) | |
870 | { | |
871 | Symbol* sym = dynsyms[i]; | |
872 | ||
873 | // FIXME: Should put on unhashed_dynsyms if the symbol is | |
874 | // hidden. | |
875 | if (sym->is_undefined()) | |
876 | unhashed_dynsyms.push_back(sym); | |
877 | else | |
878 | { | |
879 | hashed_dynsyms.push_back(sym); | |
880 | dynsym_hashvals.push_back(Dynobj::gnu_hash(sym->name())); | |
881 | } | |
882 | } | |
883 | ||
884 | // Put the unhashed symbols at the start of the global portion of | |
885 | // the dynamic symbol table. | |
886 | const unsigned int unhashed_count = unhashed_dynsyms.size(); | |
887 | unsigned int unhashed_dynsym_index = local_dynsym_count; | |
888 | for (unsigned int i = 0; i < unhashed_count; ++i) | |
889 | { | |
890 | unhashed_dynsyms[i]->set_dynsym_index(unhashed_dynsym_index); | |
891 | ++unhashed_dynsym_index; | |
892 | } | |
893 | ||
894 | // For the actual data generation we call out to a templatized | |
895 | // function. | |
9025d29d ILT |
896 | int size = parameters->get_size(); |
897 | bool big_endian = parameters->is_big_endian(); | |
a3ad94ed ILT |
898 | if (size == 32) |
899 | { | |
900 | if (big_endian) | |
9025d29d ILT |
901 | { |
902 | #ifdef HAVE_TARGET_32_BIG | |
903 | Dynobj::sized_create_gnu_hash_table<32, true>(hashed_dynsyms, | |
904 | dynsym_hashvals, | |
905 | unhashed_dynsym_index, | |
906 | pphash, | |
907 | phashlen); | |
908 | #else | |
909 | gold_unreachable(); | |
910 | #endif | |
911 | } | |
a3ad94ed | 912 | else |
9025d29d ILT |
913 | { |
914 | #ifdef HAVE_TARGET_32_LITTLE | |
915 | Dynobj::sized_create_gnu_hash_table<32, false>(hashed_dynsyms, | |
916 | dynsym_hashvals, | |
917 | unhashed_dynsym_index, | |
918 | pphash, | |
919 | phashlen); | |
920 | #else | |
921 | gold_unreachable(); | |
922 | #endif | |
923 | } | |
a3ad94ed ILT |
924 | } |
925 | else if (size == 64) | |
926 | { | |
927 | if (big_endian) | |
9025d29d ILT |
928 | { |
929 | #ifdef HAVE_TARGET_64_BIG | |
930 | Dynobj::sized_create_gnu_hash_table<64, true>(hashed_dynsyms, | |
931 | dynsym_hashvals, | |
932 | unhashed_dynsym_index, | |
933 | pphash, | |
934 | phashlen); | |
935 | #else | |
936 | gold_unreachable(); | |
937 | #endif | |
938 | } | |
a3ad94ed | 939 | else |
9025d29d ILT |
940 | { |
941 | #ifdef HAVE_TARGET_64_LITTLE | |
942 | Dynobj::sized_create_gnu_hash_table<64, false>(hashed_dynsyms, | |
943 | dynsym_hashvals, | |
944 | unhashed_dynsym_index, | |
945 | pphash, | |
946 | phashlen); | |
947 | #else | |
948 | gold_unreachable(); | |
949 | #endif | |
950 | } | |
a3ad94ed ILT |
951 | } |
952 | else | |
953 | gold_unreachable(); | |
954 | } | |
955 | ||
956 | // Create the actual data for a GNU hash table. This is just a copy | |
957 | // of the code from the old GNU linker. | |
958 | ||
959 | template<int size, bool big_endian> | |
960 | void | |
961 | Dynobj::sized_create_gnu_hash_table( | |
962 | const std::vector<Symbol*>& hashed_dynsyms, | |
963 | const std::vector<uint32_t>& dynsym_hashvals, | |
964 | unsigned int unhashed_dynsym_count, | |
965 | unsigned char** pphash, | |
966 | unsigned int* phashlen) | |
967 | { | |
968 | if (hashed_dynsyms.empty()) | |
969 | { | |
970 | // Special case for the empty hash table. | |
971 | unsigned int hashlen = 5 * 4 + size / 8; | |
972 | unsigned char* phash = new unsigned char[hashlen]; | |
973 | // One empty bucket. | |
974 | elfcpp::Swap<32, big_endian>::writeval(phash, 1); | |
975 | // Symbol index above unhashed symbols. | |
976 | elfcpp::Swap<32, big_endian>::writeval(phash + 4, unhashed_dynsym_count); | |
977 | // One word for bitmask. | |
978 | elfcpp::Swap<32, big_endian>::writeval(phash + 8, 1); | |
979 | // Only bloom filter. | |
980 | elfcpp::Swap<32, big_endian>::writeval(phash + 12, 0); | |
981 | // No valid hashes. | |
982 | elfcpp::Swap<size, big_endian>::writeval(phash + 16, 0); | |
983 | // No hashes in only bucket. | |
984 | elfcpp::Swap<32, big_endian>::writeval(phash + 16 + size / 8, 0); | |
985 | ||
986 | *phashlen = hashlen; | |
987 | *pphash = phash; | |
988 | ||
989 | return; | |
990 | } | |
991 | ||
992 | const unsigned int bucketcount = | |
993 | Dynobj::compute_bucket_count(dynsym_hashvals, true); | |
994 | ||
995 | const unsigned int nsyms = hashed_dynsyms.size(); | |
996 | ||
997 | uint32_t maskbitslog2 = 1; | |
998 | uint32_t x = nsyms >> 1; | |
999 | while (x != 0) | |
1000 | { | |
1001 | ++maskbitslog2; | |
1002 | x >>= 1; | |
1003 | } | |
1004 | if (maskbitslog2 < 3) | |
1005 | maskbitslog2 = 5; | |
1006 | else if (((1U << (maskbitslog2 - 2)) & nsyms) != 0) | |
1007 | maskbitslog2 += 3; | |
1008 | else | |
1009 | maskbitslog2 += 2; | |
1010 | ||
1011 | uint32_t shift1; | |
1012 | if (size == 32) | |
1013 | shift1 = 5; | |
1014 | else | |
1015 | { | |
1016 | if (maskbitslog2 == 5) | |
1017 | maskbitslog2 = 6; | |
1018 | shift1 = 6; | |
1019 | } | |
1020 | uint32_t mask = (1U << shift1) - 1U; | |
1021 | uint32_t shift2 = maskbitslog2; | |
1022 | uint32_t maskbits = 1U << maskbitslog2; | |
1023 | uint32_t maskwords = 1U << (maskbitslog2 - shift1); | |
1024 | ||
1025 | typedef typename elfcpp::Elf_types<size>::Elf_WXword Word; | |
1026 | std::vector<Word> bitmask(maskwords); | |
1027 | std::vector<uint32_t> counts(bucketcount); | |
1028 | std::vector<uint32_t> indx(bucketcount); | |
1029 | uint32_t symindx = unhashed_dynsym_count; | |
1030 | ||
1031 | // Count the number of times each hash bucket is used. | |
1032 | for (unsigned int i = 0; i < nsyms; ++i) | |
1033 | ++counts[dynsym_hashvals[i] % bucketcount]; | |
1034 | ||
1035 | unsigned int cnt = symindx; | |
1036 | for (unsigned int i = 0; i < bucketcount; ++i) | |
1037 | { | |
1038 | indx[i] = cnt; | |
1039 | cnt += counts[i]; | |
1040 | } | |
1041 | ||
1042 | unsigned int hashlen = (4 + bucketcount + nsyms) * 4; | |
1043 | hashlen += maskbits / 8; | |
1044 | unsigned char* phash = new unsigned char[hashlen]; | |
1045 | ||
1046 | elfcpp::Swap<32, big_endian>::writeval(phash, bucketcount); | |
1047 | elfcpp::Swap<32, big_endian>::writeval(phash + 4, symindx); | |
1048 | elfcpp::Swap<32, big_endian>::writeval(phash + 8, maskwords); | |
1049 | elfcpp::Swap<32, big_endian>::writeval(phash + 12, shift2); | |
1050 | ||
1051 | unsigned char* p = phash + 16 + maskbits / 8; | |
1052 | for (unsigned int i = 0; i < bucketcount; ++i) | |
1053 | { | |
1054 | if (counts[i] == 0) | |
1055 | elfcpp::Swap<32, big_endian>::writeval(p, 0); | |
1056 | else | |
1057 | elfcpp::Swap<32, big_endian>::writeval(p, indx[i]); | |
1058 | p += 4; | |
1059 | } | |
1060 | ||
1061 | for (unsigned int i = 0; i < nsyms; ++i) | |
1062 | { | |
1063 | Symbol* sym = hashed_dynsyms[i]; | |
1064 | uint32_t hashval = dynsym_hashvals[i]; | |
1065 | ||
1066 | unsigned int bucket = hashval % bucketcount; | |
1067 | unsigned int val = ((hashval >> shift1) | |
1068 | & ((maskbits >> shift1) - 1)); | |
1069 | bitmask[val] |= (static_cast<Word>(1U)) << (hashval & mask); | |
1070 | bitmask[val] |= (static_cast<Word>(1U)) << ((hashval >> shift2) & mask); | |
1071 | val = hashval & ~ 1U; | |
1072 | if (counts[bucket] == 1) | |
1073 | { | |
1074 | // Last element terminates the chain. | |
1075 | val |= 1; | |
1076 | } | |
1077 | elfcpp::Swap<32, big_endian>::writeval(p + (indx[bucket] - symindx) * 4, | |
1078 | val); | |
1079 | --counts[bucket]; | |
1080 | ||
1081 | sym->set_dynsym_index(indx[bucket]); | |
1082 | ++indx[bucket]; | |
1083 | } | |
1084 | ||
1085 | p = phash + 16; | |
1086 | for (unsigned int i = 0; i < maskwords; ++i) | |
1087 | { | |
1088 | elfcpp::Swap<size, big_endian>::writeval(p, bitmask[i]); | |
1089 | p += size / 8; | |
1090 | } | |
1091 | ||
1092 | *phashlen = hashlen; | |
1093 | *pphash = phash; | |
1094 | } | |
1095 | ||
14b31740 ILT |
1096 | // Verdef methods. |
1097 | ||
1098 | // Write this definition to a buffer for the output section. | |
1099 | ||
1100 | template<int size, bool big_endian> | |
1101 | unsigned char* | |
91da9340 ILT |
1102 | Verdef::write(const Stringpool* dynpool, bool is_last, unsigned char* pb |
1103 | ACCEPT_SIZE_ENDIAN) const | |
14b31740 ILT |
1104 | { |
1105 | const int verdef_size = elfcpp::Elf_sizes<size>::verdef_size; | |
1106 | const int verdaux_size = elfcpp::Elf_sizes<size>::verdaux_size; | |
1107 | ||
1108 | elfcpp::Verdef_write<size, big_endian> vd(pb); | |
1109 | vd.set_vd_version(elfcpp::VER_DEF_CURRENT); | |
1110 | vd.set_vd_flags((this->is_base_ ? elfcpp::VER_FLG_BASE : 0) | |
1111 | | (this->is_weak_ ? elfcpp::VER_FLG_WEAK : 0)); | |
1112 | vd.set_vd_ndx(this->index()); | |
1113 | vd.set_vd_cnt(1 + this->deps_.size()); | |
1114 | vd.set_vd_hash(Dynobj::elf_hash(this->name())); | |
1115 | vd.set_vd_aux(verdef_size); | |
1116 | vd.set_vd_next(is_last | |
1117 | ? 0 | |
1118 | : verdef_size + (1 + this->deps_.size()) * verdaux_size); | |
1119 | pb += verdef_size; | |
1120 | ||
1121 | elfcpp::Verdaux_write<size, big_endian> vda(pb); | |
1122 | vda.set_vda_name(dynpool->get_offset(this->name())); | |
1123 | vda.set_vda_next(this->deps_.empty() ? 0 : verdaux_size); | |
1124 | pb += verdaux_size; | |
1125 | ||
1126 | Deps::const_iterator p; | |
1127 | unsigned int i; | |
1128 | for (p = this->deps_.begin(), i = 0; | |
1129 | p != this->deps_.end(); | |
1130 | ++p, ++i) | |
1131 | { | |
1132 | elfcpp::Verdaux_write<size, big_endian> vda(pb); | |
1133 | vda.set_vda_name(dynpool->get_offset(*p)); | |
1134 | vda.set_vda_next(i + 1 >= this->deps_.size() ? 0 : verdaux_size); | |
1135 | pb += verdaux_size; | |
1136 | } | |
1137 | ||
1138 | return pb; | |
1139 | } | |
1140 | ||
1141 | // Verneed methods. | |
1142 | ||
1143 | Verneed::~Verneed() | |
1144 | { | |
1145 | for (Need_versions::iterator p = this->need_versions_.begin(); | |
1146 | p != this->need_versions_.end(); | |
1147 | ++p) | |
1148 | delete *p; | |
1149 | } | |
1150 | ||
1151 | // Add a new version to this file reference. | |
1152 | ||
1153 | Verneed_version* | |
1154 | Verneed::add_name(const char* name) | |
1155 | { | |
1156 | Verneed_version* vv = new Verneed_version(name); | |
1157 | this->need_versions_.push_back(vv); | |
1158 | return vv; | |
1159 | } | |
1160 | ||
1161 | // Set the version indexes starting at INDEX. | |
1162 | ||
1163 | unsigned int | |
1164 | Verneed::finalize(unsigned int index) | |
1165 | { | |
1166 | for (Need_versions::iterator p = this->need_versions_.begin(); | |
1167 | p != this->need_versions_.end(); | |
1168 | ++p) | |
1169 | { | |
1170 | (*p)->set_index(index); | |
1171 | ++index; | |
1172 | } | |
1173 | return index; | |
1174 | } | |
1175 | ||
1176 | // Write this list of referenced versions to a buffer for the output | |
1177 | // section. | |
1178 | ||
1179 | template<int size, bool big_endian> | |
1180 | unsigned char* | |
1181 | Verneed::write(const Stringpool* dynpool, bool is_last, | |
91da9340 | 1182 | unsigned char* pb ACCEPT_SIZE_ENDIAN) const |
14b31740 ILT |
1183 | { |
1184 | const int verneed_size = elfcpp::Elf_sizes<size>::verneed_size; | |
1185 | const int vernaux_size = elfcpp::Elf_sizes<size>::vernaux_size; | |
1186 | ||
1187 | elfcpp::Verneed_write<size, big_endian> vn(pb); | |
1188 | vn.set_vn_version(elfcpp::VER_NEED_CURRENT); | |
1189 | vn.set_vn_cnt(this->need_versions_.size()); | |
1190 | vn.set_vn_file(dynpool->get_offset(this->filename())); | |
1191 | vn.set_vn_aux(verneed_size); | |
1192 | vn.set_vn_next(is_last | |
1193 | ? 0 | |
1194 | : verneed_size + this->need_versions_.size() * vernaux_size); | |
1195 | pb += verneed_size; | |
1196 | ||
1197 | Need_versions::const_iterator p; | |
1198 | unsigned int i; | |
1199 | for (p = this->need_versions_.begin(), i = 0; | |
1200 | p != this->need_versions_.end(); | |
1201 | ++p, ++i) | |
1202 | { | |
1203 | elfcpp::Vernaux_write<size, big_endian> vna(pb); | |
1204 | vna.set_vna_hash(Dynobj::elf_hash((*p)->version())); | |
1205 | // FIXME: We need to sometimes set VER_FLG_WEAK here. | |
1206 | vna.set_vna_flags(0); | |
1207 | vna.set_vna_other((*p)->index()); | |
1208 | vna.set_vna_name(dynpool->get_offset((*p)->version())); | |
1209 | vna.set_vna_next(i + 1 >= this->need_versions_.size() | |
1210 | ? 0 | |
1211 | : vernaux_size); | |
1212 | pb += vernaux_size; | |
1213 | } | |
1214 | ||
1215 | return pb; | |
1216 | } | |
1217 | ||
1218 | // Versions methods. | |
1219 | ||
1220 | Versions::~Versions() | |
1221 | { | |
1222 | for (Defs::iterator p = this->defs_.begin(); | |
1223 | p != this->defs_.end(); | |
1224 | ++p) | |
1225 | delete *p; | |
1226 | ||
1227 | for (Needs::iterator p = this->needs_.begin(); | |
1228 | p != this->needs_.end(); | |
1229 | ++p) | |
1230 | delete *p; | |
1231 | } | |
1232 | ||
46fe1623 ILT |
1233 | // Return the dynamic object which a symbol refers to. |
1234 | ||
1235 | Dynobj* | |
1236 | Versions::get_dynobj_for_sym(const Symbol_table* symtab, | |
1237 | const Symbol* sym) const | |
1238 | { | |
1239 | if (sym->is_copied_from_dynobj()) | |
1240 | return symtab->get_copy_source(sym); | |
1241 | else | |
1242 | { | |
1243 | Object* object = sym->object(); | |
1244 | gold_assert(object->is_dynamic()); | |
1245 | return static_cast<Dynobj*>(object); | |
1246 | } | |
1247 | } | |
1248 | ||
14b31740 ILT |
1249 | // Record version information for a symbol going into the dynamic |
1250 | // symbol table. | |
1251 | ||
1252 | void | |
35cdfc9a | 1253 | Versions::record_version(const Symbol_table* symtab, |
14b31740 ILT |
1254 | Stringpool* dynpool, const Symbol* sym) |
1255 | { | |
1256 | gold_assert(!this->is_finalized_); | |
1257 | gold_assert(sym->version() != NULL); | |
1258 | ||
1259 | Stringpool::Key version_key; | |
cfd73a4e | 1260 | const char* version = dynpool->add(sym->version(), false, &version_key); |
14b31740 | 1261 | |
46fe1623 | 1262 | if (!sym->is_from_dynobj() && !sym->is_copied_from_dynobj()) |
92f0e169 | 1263 | { |
7e1edb90 | 1264 | if (parameters->output_is_shared()) |
35cdfc9a | 1265 | this->add_def(sym, version, version_key); |
92f0e169 | 1266 | } |
14b31740 ILT |
1267 | else |
1268 | { | |
1269 | // This is a version reference. | |
46fe1623 | 1270 | Dynobj* dynobj = this->get_dynobj_for_sym(symtab, sym); |
14b31740 ILT |
1271 | this->add_need(dynpool, dynobj->soname(), version, version_key); |
1272 | } | |
1273 | } | |
1274 | ||
1275 | // We've found a symbol SYM defined in version VERSION. | |
1276 | ||
1277 | void | |
35cdfc9a ILT |
1278 | Versions::add_def(const Symbol* sym, const char* version, |
1279 | Stringpool::Key version_key) | |
14b31740 ILT |
1280 | { |
1281 | Key k(version_key, 0); | |
1282 | Version_base* const vbnull = NULL; | |
1283 | std::pair<Version_table::iterator, bool> ins = | |
1284 | this->version_table_.insert(std::make_pair(k, vbnull)); | |
1285 | ||
1286 | if (!ins.second) | |
1287 | { | |
1288 | // We already have an entry for this version. | |
1289 | Version_base* vb = ins.first->second; | |
1290 | ||
1291 | // We have now seen a symbol in this version, so it is not | |
1292 | // weak. | |
1293 | vb->clear_weak(); | |
1294 | ||
1295 | // FIXME: When we support version scripts, we will need to | |
1296 | // check whether this symbol should be forced local. | |
1297 | } | |
1298 | else | |
1299 | { | |
1300 | // If we are creating a shared object, it is an error to | |
1301 | // find a definition of a symbol with a version which is not | |
1302 | // in the version script. | |
7e1edb90 | 1303 | if (parameters->output_is_shared()) |
14b31740 | 1304 | { |
75f2446e | 1305 | gold_error(_("symbol %s has undefined version %s"), |
a2b1aa12 | 1306 | sym->demangled_name().c_str(), version); |
75f2446e | 1307 | return; |
14b31740 ILT |
1308 | } |
1309 | ||
1310 | // If this is the first version we are defining, first define | |
1311 | // the base version. FIXME: Should use soname here when | |
1312 | // creating a shared object. | |
35cdfc9a | 1313 | Verdef* vdbase = new Verdef(parameters->output_file_name(), true, false, |
14b31740 ILT |
1314 | true); |
1315 | this->defs_.push_back(vdbase); | |
1316 | ||
1317 | // When creating a regular executable, automatically define | |
1318 | // a new version. | |
1319 | Verdef* vd = new Verdef(version, false, false, false); | |
1320 | this->defs_.push_back(vd); | |
1321 | ins.first->second = vd; | |
1322 | } | |
1323 | } | |
1324 | ||
1325 | // Add a reference to version NAME in file FILENAME. | |
1326 | ||
1327 | void | |
1328 | Versions::add_need(Stringpool* dynpool, const char* filename, const char* name, | |
1329 | Stringpool::Key name_key) | |
1330 | { | |
1331 | Stringpool::Key filename_key; | |
cfd73a4e | 1332 | filename = dynpool->add(filename, true, &filename_key); |
14b31740 ILT |
1333 | |
1334 | Key k(name_key, filename_key); | |
1335 | Version_base* const vbnull = NULL; | |
1336 | std::pair<Version_table::iterator, bool> ins = | |
1337 | this->version_table_.insert(std::make_pair(k, vbnull)); | |
1338 | ||
1339 | if (!ins.second) | |
1340 | { | |
1341 | // We already have an entry for this filename/version. | |
1342 | return; | |
1343 | } | |
1344 | ||
1345 | // See whether we already have this filename. We don't expect many | |
1346 | // version references, so we just do a linear search. This could be | |
1347 | // replaced by a hash table. | |
1348 | Verneed* vn = NULL; | |
1349 | for (Needs::iterator p = this->needs_.begin(); | |
1350 | p != this->needs_.end(); | |
1351 | ++p) | |
1352 | { | |
1353 | if ((*p)->filename() == filename) | |
1354 | { | |
1355 | vn = *p; | |
1356 | break; | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | if (vn == NULL) | |
1361 | { | |
1362 | // We have a new filename. | |
1363 | vn = new Verneed(filename); | |
1364 | this->needs_.push_back(vn); | |
1365 | } | |
1366 | ||
1367 | ins.first->second = vn->add_name(name); | |
1368 | } | |
1369 | ||
1370 | // Set the version indexes. Create a new dynamic version symbol for | |
1371 | // each new version definition. | |
1372 | ||
1373 | unsigned int | |
1374 | Versions::finalize(const Target* target, Symbol_table* symtab, | |
1375 | unsigned int dynsym_index, std::vector<Symbol*>* syms) | |
1376 | { | |
1377 | gold_assert(!this->is_finalized_); | |
1378 | ||
1379 | unsigned int vi = 1; | |
1380 | ||
1381 | for (Defs::iterator p = this->defs_.begin(); | |
1382 | p != this->defs_.end(); | |
1383 | ++p) | |
1384 | { | |
1385 | (*p)->set_index(vi); | |
1386 | ++vi; | |
1387 | ||
1388 | // Create a version symbol if necessary. | |
1389 | if (!(*p)->is_symbol_created()) | |
1390 | { | |
008db82e ILT |
1391 | Symbol* vsym = symtab->define_as_constant(target, (*p)->name(), |
1392 | (*p)->name(), 0, 0, | |
1393 | elfcpp::STT_OBJECT, | |
1394 | elfcpp::STB_GLOBAL, | |
1395 | elfcpp::STV_DEFAULT, 0, | |
1396 | false); | |
14b31740 | 1397 | vsym->set_needs_dynsym_entry(); |
92f0e169 | 1398 | vsym->set_dynsym_index(dynsym_index); |
14b31740 ILT |
1399 | ++dynsym_index; |
1400 | syms->push_back(vsym); | |
1401 | // The name is already in the dynamic pool. | |
1402 | } | |
1403 | } | |
1404 | ||
1405 | // Index 1 is used for global symbols. | |
1406 | if (vi == 1) | |
1407 | { | |
1408 | gold_assert(this->defs_.empty()); | |
1409 | vi = 2; | |
1410 | } | |
1411 | ||
1412 | for (Needs::iterator p = this->needs_.begin(); | |
1413 | p != this->needs_.end(); | |
1414 | ++p) | |
1415 | vi = (*p)->finalize(vi); | |
1416 | ||
1417 | this->is_finalized_ = true; | |
1418 | ||
1419 | return dynsym_index; | |
1420 | } | |
1421 | ||
1422 | // Return the version index to use for a symbol. This does two hash | |
1423 | // table lookups: one in DYNPOOL and one in this->version_table_. | |
1424 | // Another approach alternative would be store a pointer in SYM, which | |
1425 | // would increase the size of the symbol table. Or perhaps we could | |
1426 | // use a hash table from dynamic symbol pointer values to Version_base | |
1427 | // pointers. | |
1428 | ||
1429 | unsigned int | |
46fe1623 ILT |
1430 | Versions::version_index(const Symbol_table* symtab, const Stringpool* dynpool, |
1431 | const Symbol* sym) const | |
14b31740 ILT |
1432 | { |
1433 | Stringpool::Key version_key; | |
1434 | const char* version = dynpool->find(sym->version(), &version_key); | |
1435 | gold_assert(version != NULL); | |
1436 | ||
91da9340 | 1437 | Key k; |
46fe1623 | 1438 | if (!sym->is_from_dynobj() && !sym->is_copied_from_dynobj()) |
31365f57 | 1439 | { |
7e1edb90 | 1440 | if (!parameters->output_is_shared()) |
31365f57 ILT |
1441 | return elfcpp::VER_NDX_GLOBAL; |
1442 | k = Key(version_key, 0); | |
1443 | } | |
14b31740 ILT |
1444 | else |
1445 | { | |
46fe1623 | 1446 | Dynobj* dynobj = this->get_dynobj_for_sym(symtab, sym); |
14b31740 ILT |
1447 | |
1448 | Stringpool::Key filename_key; | |
1449 | const char* filename = dynpool->find(dynobj->soname(), &filename_key); | |
1450 | gold_assert(filename != NULL); | |
1451 | ||
91da9340 | 1452 | k = Key(version_key, filename_key); |
14b31740 ILT |
1453 | } |
1454 | ||
91da9340 | 1455 | Version_table::const_iterator p = this->version_table_.find(k); |
14b31740 ILT |
1456 | gold_assert(p != this->version_table_.end()); |
1457 | ||
1458 | return p->second->index(); | |
1459 | } | |
1460 | ||
1461 | // Return an allocated buffer holding the contents of the symbol | |
1462 | // version section. | |
1463 | ||
1464 | template<int size, bool big_endian> | |
1465 | void | |
46fe1623 ILT |
1466 | Versions::symbol_section_contents(const Symbol_table* symtab, |
1467 | const Stringpool* dynpool, | |
14b31740 ILT |
1468 | unsigned int local_symcount, |
1469 | const std::vector<Symbol*>& syms, | |
1470 | unsigned char** pp, | |
91da9340 ILT |
1471 | unsigned int* psize |
1472 | ACCEPT_SIZE_ENDIAN) const | |
14b31740 ILT |
1473 | { |
1474 | gold_assert(this->is_finalized_); | |
1475 | ||
1476 | unsigned int sz = (local_symcount + syms.size()) * 2; | |
1477 | unsigned char* pbuf = new unsigned char[sz]; | |
1478 | ||
1479 | for (unsigned int i = 0; i < local_symcount; ++i) | |
1480 | elfcpp::Swap<16, big_endian>::writeval(pbuf + i * 2, | |
1481 | elfcpp::VER_NDX_LOCAL); | |
1482 | ||
1483 | for (std::vector<Symbol*>::const_iterator p = syms.begin(); | |
1484 | p != syms.end(); | |
1485 | ++p) | |
1486 | { | |
1487 | unsigned int version_index; | |
1488 | const char* version = (*p)->version(); | |
1489 | if (version == NULL) | |
1490 | version_index = elfcpp::VER_NDX_GLOBAL; | |
1491 | else | |
46fe1623 | 1492 | version_index = this->version_index(symtab, dynpool, *p); |
14b31740 ILT |
1493 | elfcpp::Swap<16, big_endian>::writeval(pbuf + (*p)->dynsym_index() * 2, |
1494 | version_index); | |
1495 | } | |
1496 | ||
1497 | *pp = pbuf; | |
1498 | *psize = sz; | |
1499 | } | |
1500 | ||
1501 | // Return an allocated buffer holding the contents of the version | |
1502 | // definition section. | |
1503 | ||
1504 | template<int size, bool big_endian> | |
1505 | void | |
1506 | Versions::def_section_contents(const Stringpool* dynpool, | |
1507 | unsigned char** pp, unsigned int* psize, | |
91da9340 ILT |
1508 | unsigned int* pentries |
1509 | ACCEPT_SIZE_ENDIAN) const | |
14b31740 ILT |
1510 | { |
1511 | gold_assert(this->is_finalized_); | |
1512 | gold_assert(!this->defs_.empty()); | |
1513 | ||
1514 | const int verdef_size = elfcpp::Elf_sizes<size>::verdef_size; | |
1515 | const int verdaux_size = elfcpp::Elf_sizes<size>::verdaux_size; | |
1516 | ||
1517 | unsigned int sz = 0; | |
1518 | for (Defs::const_iterator p = this->defs_.begin(); | |
1519 | p != this->defs_.end(); | |
1520 | ++p) | |
1521 | { | |
1522 | sz += verdef_size + verdaux_size; | |
1523 | sz += (*p)->count_dependencies() * verdaux_size; | |
1524 | } | |
1525 | ||
1526 | unsigned char* pbuf = new unsigned char[sz]; | |
1527 | ||
1528 | unsigned char* pb = pbuf; | |
1529 | Defs::const_iterator p; | |
1530 | unsigned int i; | |
1531 | for (p = this->defs_.begin(), i = 0; | |
1532 | p != this->defs_.end(); | |
1533 | ++p, ++i) | |
91da9340 ILT |
1534 | pb = (*p)->write SELECT_SIZE_ENDIAN_NAME(size, big_endian)( |
1535 | dynpool, i + 1 >= this->defs_.size(), pb | |
1536 | SELECT_SIZE_ENDIAN(size, big_endian)); | |
14b31740 ILT |
1537 | |
1538 | gold_assert(static_cast<unsigned int>(pb - pbuf) == sz); | |
1539 | ||
1540 | *pp = pbuf; | |
1541 | *psize = sz; | |
1542 | *pentries = this->defs_.size(); | |
1543 | } | |
1544 | ||
1545 | // Return an allocated buffer holding the contents of the version | |
1546 | // reference section. | |
1547 | ||
1548 | template<int size, bool big_endian> | |
1549 | void | |
1550 | Versions::need_section_contents(const Stringpool* dynpool, | |
1551 | unsigned char** pp, unsigned int *psize, | |
91da9340 ILT |
1552 | unsigned int *pentries |
1553 | ACCEPT_SIZE_ENDIAN) const | |
14b31740 ILT |
1554 | { |
1555 | gold_assert(this->is_finalized_); | |
1556 | gold_assert(!this->needs_.empty()); | |
1557 | ||
1558 | const int verneed_size = elfcpp::Elf_sizes<size>::verneed_size; | |
1559 | const int vernaux_size = elfcpp::Elf_sizes<size>::vernaux_size; | |
1560 | ||
1561 | unsigned int sz = 0; | |
1562 | for (Needs::const_iterator p = this->needs_.begin(); | |
1563 | p != this->needs_.end(); | |
1564 | ++p) | |
1565 | { | |
1566 | sz += verneed_size; | |
1567 | sz += (*p)->count_versions() * vernaux_size; | |
1568 | } | |
1569 | ||
1570 | unsigned char* pbuf = new unsigned char[sz]; | |
1571 | ||
1572 | unsigned char* pb = pbuf; | |
1573 | Needs::const_iterator p; | |
1574 | unsigned int i; | |
1575 | for (p = this->needs_.begin(), i = 0; | |
1576 | p != this->needs_.end(); | |
1577 | ++p, ++i) | |
91da9340 ILT |
1578 | pb = (*p)->write SELECT_SIZE_ENDIAN_NAME(size, big_endian)( |
1579 | dynpool, i + 1 >= this->needs_.size(), pb | |
1580 | SELECT_SIZE_ENDIAN(size, big_endian)); | |
14b31740 ILT |
1581 | |
1582 | gold_assert(static_cast<unsigned int>(pb - pbuf) == sz); | |
1583 | ||
1584 | *pp = pbuf; | |
1585 | *psize = sz; | |
1586 | *pentries = this->needs_.size(); | |
1587 | } | |
1588 | ||
dbe717ef ILT |
1589 | // Instantiate the templates we need. We could use the configure |
1590 | // script to restrict this to only the ones for implemented targets. | |
1591 | ||
193a53d9 | 1592 | #ifdef HAVE_TARGET_32_LITTLE |
dbe717ef ILT |
1593 | template |
1594 | class Sized_dynobj<32, false>; | |
193a53d9 | 1595 | #endif |
dbe717ef | 1596 | |
193a53d9 | 1597 | #ifdef HAVE_TARGET_32_BIG |
dbe717ef ILT |
1598 | template |
1599 | class Sized_dynobj<32, true>; | |
193a53d9 | 1600 | #endif |
dbe717ef | 1601 | |
193a53d9 | 1602 | #ifdef HAVE_TARGET_64_LITTLE |
dbe717ef ILT |
1603 | template |
1604 | class Sized_dynobj<64, false>; | |
193a53d9 | 1605 | #endif |
dbe717ef | 1606 | |
193a53d9 | 1607 | #ifdef HAVE_TARGET_64_BIG |
dbe717ef ILT |
1608 | template |
1609 | class Sized_dynobj<64, true>; | |
193a53d9 | 1610 | #endif |
dbe717ef | 1611 | |
193a53d9 | 1612 | #ifdef HAVE_TARGET_32_LITTLE |
14b31740 ILT |
1613 | template |
1614 | void | |
91da9340 | 1615 | Versions::symbol_section_contents<32, false>( |
46fe1623 | 1616 | const Symbol_table*, |
91da9340 ILT |
1617 | const Stringpool*, |
1618 | unsigned int, | |
1619 | const std::vector<Symbol*>&, | |
1620 | unsigned char**, | |
1621 | unsigned int* | |
1622 | ACCEPT_SIZE_ENDIAN_EXPLICIT(32, false)) const; | |
193a53d9 | 1623 | #endif |
14b31740 | 1624 | |
193a53d9 | 1625 | #ifdef HAVE_TARGET_32_BIG |
14b31740 ILT |
1626 | template |
1627 | void | |
91da9340 | 1628 | Versions::symbol_section_contents<32, true>( |
46fe1623 | 1629 | const Symbol_table*, |
91da9340 ILT |
1630 | const Stringpool*, |
1631 | unsigned int, | |
1632 | const std::vector<Symbol*>&, | |
1633 | unsigned char**, | |
1634 | unsigned int* | |
1635 | ACCEPT_SIZE_ENDIAN_EXPLICIT(32, true)) const; | |
193a53d9 | 1636 | #endif |
14b31740 | 1637 | |
193a53d9 | 1638 | #ifdef HAVE_TARGET_64_LITTLE |
14b31740 ILT |
1639 | template |
1640 | void | |
91da9340 | 1641 | Versions::symbol_section_contents<64, false>( |
46fe1623 | 1642 | const Symbol_table*, |
91da9340 ILT |
1643 | const Stringpool*, |
1644 | unsigned int, | |
1645 | const std::vector<Symbol*>&, | |
1646 | unsigned char**, | |
1647 | unsigned int* | |
1648 | ACCEPT_SIZE_ENDIAN_EXPLICIT(64, false)) const; | |
193a53d9 | 1649 | #endif |
14b31740 | 1650 | |
193a53d9 | 1651 | #ifdef HAVE_TARGET_64_BIG |
14b31740 ILT |
1652 | template |
1653 | void | |
91da9340 | 1654 | Versions::symbol_section_contents<64, true>( |
46fe1623 | 1655 | const Symbol_table*, |
91da9340 ILT |
1656 | const Stringpool*, |
1657 | unsigned int, | |
1658 | const std::vector<Symbol*>&, | |
1659 | unsigned char**, | |
1660 | unsigned int* | |
1661 | ACCEPT_SIZE_ENDIAN_EXPLICIT(64, true)) const; | |
193a53d9 | 1662 | #endif |
14b31740 | 1663 | |
193a53d9 | 1664 | #ifdef HAVE_TARGET_32_LITTLE |
14b31740 ILT |
1665 | template |
1666 | void | |
91da9340 ILT |
1667 | Versions::def_section_contents<32, false>( |
1668 | const Stringpool*, | |
1669 | unsigned char**, | |
1670 | unsigned int*, | |
1671 | unsigned int* | |
1672 | ACCEPT_SIZE_ENDIAN_EXPLICIT(32, false)) const; | |
193a53d9 | 1673 | #endif |
14b31740 | 1674 | |
193a53d9 | 1675 | #ifdef HAVE_TARGET_32_BIG |
14b31740 ILT |
1676 | template |
1677 | void | |
91da9340 ILT |
1678 | Versions::def_section_contents<32, true>( |
1679 | const Stringpool*, | |
1680 | unsigned char**, | |
1681 | unsigned int*, | |
1682 | unsigned int* | |
1683 | ACCEPT_SIZE_ENDIAN_EXPLICIT(32, true)) const; | |
193a53d9 | 1684 | #endif |
14b31740 | 1685 | |
193a53d9 | 1686 | #ifdef HAVE_TARGET_64_LITTLE |
14b31740 ILT |
1687 | template |
1688 | void | |
91da9340 ILT |
1689 | Versions::def_section_contents<64, false>( |
1690 | const Stringpool*, | |
1691 | unsigned char**, | |
1692 | unsigned int*, | |
1693 | unsigned int* | |
1694 | ACCEPT_SIZE_ENDIAN_EXPLICIT(64, false)) const; | |
193a53d9 | 1695 | #endif |
14b31740 | 1696 | |
193a53d9 | 1697 | #ifdef HAVE_TARGET_64_BIG |
14b31740 ILT |
1698 | template |
1699 | void | |
91da9340 ILT |
1700 | Versions::def_section_contents<64, true>( |
1701 | const Stringpool*, | |
1702 | unsigned char**, | |
1703 | unsigned int*, | |
1704 | unsigned int* | |
1705 | ACCEPT_SIZE_ENDIAN_EXPLICIT(64, true)) const; | |
193a53d9 | 1706 | #endif |
14b31740 | 1707 | |
193a53d9 | 1708 | #ifdef HAVE_TARGET_32_LITTLE |
14b31740 ILT |
1709 | template |
1710 | void | |
91da9340 ILT |
1711 | Versions::need_section_contents<32, false>( |
1712 | const Stringpool*, | |
1713 | unsigned char**, | |
1714 | unsigned int*, | |
1715 | unsigned int* | |
1716 | ACCEPT_SIZE_ENDIAN_EXPLICIT(32, false)) const; | |
193a53d9 | 1717 | #endif |
14b31740 | 1718 | |
193a53d9 | 1719 | #ifdef HAVE_TARGET_32_BIG |
14b31740 ILT |
1720 | template |
1721 | void | |
91da9340 ILT |
1722 | Versions::need_section_contents<32, true>( |
1723 | const Stringpool*, | |
1724 | unsigned char**, | |
1725 | unsigned int*, | |
1726 | unsigned int* | |
1727 | ACCEPT_SIZE_ENDIAN_EXPLICIT(32, true)) const; | |
193a53d9 | 1728 | #endif |
14b31740 | 1729 | |
193a53d9 | 1730 | #ifdef HAVE_TARGET_64_LITTLE |
14b31740 ILT |
1731 | template |
1732 | void | |
91da9340 ILT |
1733 | Versions::need_section_contents<64, false>( |
1734 | const Stringpool*, | |
1735 | unsigned char**, | |
1736 | unsigned int*, | |
1737 | unsigned int* | |
1738 | ACCEPT_SIZE_ENDIAN_EXPLICIT(64, false)) const; | |
193a53d9 | 1739 | #endif |
14b31740 | 1740 | |
193a53d9 | 1741 | #ifdef HAVE_TARGET_64_BIG |
14b31740 ILT |
1742 | template |
1743 | void | |
91da9340 ILT |
1744 | Versions::need_section_contents<64, true>( |
1745 | const Stringpool*, | |
1746 | unsigned char**, | |
1747 | unsigned int*, | |
1748 | unsigned int* | |
1749 | ACCEPT_SIZE_ENDIAN_EXPLICIT(64, true)) const; | |
193a53d9 | 1750 | #endif |
14b31740 | 1751 | |
dbe717ef | 1752 | } // End namespace gold. |