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61ba1cf9 ILT |
1 | // archive.cc -- archive support for gold |
2 | ||
114dfbe1 | 3 | // Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
6cb15b7f ILT |
4 | // Written by Ian Lance Taylor <iant@google.com>. |
5 | ||
6 | // This file is part of gold. | |
7 | ||
8 | // This program is free software; you can redistribute it and/or modify | |
9 | // it under the terms of the GNU General Public License as published by | |
10 | // the Free Software Foundation; either version 3 of the License, or | |
11 | // (at your option) any later version. | |
12 | ||
13 | // This program is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | ||
18 | // You should have received a copy of the GNU General Public License | |
19 | // along with this program; if not, write to the Free Software | |
20 | // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
21 | // MA 02110-1301, USA. | |
22 | ||
61ba1cf9 ILT |
23 | #include "gold.h" |
24 | ||
25 | #include <cerrno> | |
26 | #include <cstring> | |
27 | #include <climits> | |
28 | #include <vector> | |
a1207466 CC |
29 | #include "libiberty.h" |
30 | #include "filenames.h" | |
61ba1cf9 ILT |
31 | |
32 | #include "elfcpp.h" | |
7e1edb90 | 33 | #include "options.h" |
7d9e3d98 | 34 | #include "mapfile.h" |
61ba1cf9 | 35 | #include "fileread.h" |
ead1e424 | 36 | #include "readsyms.h" |
61ba1cf9 ILT |
37 | #include "symtab.h" |
38 | #include "object.h" | |
88a4108b | 39 | #include "layout.h" |
61ba1cf9 | 40 | #include "archive.h" |
89fc3421 | 41 | #include "plugin.h" |
09ec0418 | 42 | #include "incremental.h" |
61ba1cf9 ILT |
43 | |
44 | namespace gold | |
45 | { | |
46 | ||
47 | // The header of an entry in the archive. This is all readable text, | |
48 | // padded with spaces where necesary. If the contents of an archive | |
49 | // are all text file, the entire archive is readable. | |
50 | ||
51 | struct Archive::Archive_header | |
52 | { | |
53 | // The entry name. | |
54 | char ar_name[16]; | |
55 | // The file modification time. | |
56 | char ar_date[12]; | |
57 | // The user's UID in decimal. | |
58 | char ar_uid[6]; | |
59 | // The user's GID in decimal. | |
60 | char ar_gid[6]; | |
61 | // The file mode in octal. | |
62 | char ar_mode[8]; | |
63 | // The file size in decimal. | |
64 | char ar_size[10]; | |
65 | // The final magic code. | |
66 | char ar_fmag[2]; | |
67 | }; | |
68 | ||
ac45a351 CC |
69 | // Class Archive static variables. |
70 | unsigned int Archive::total_archives; | |
71 | unsigned int Archive::total_members; | |
72 | unsigned int Archive::total_members_loaded; | |
73 | ||
61ba1cf9 ILT |
74 | // Archive methods. |
75 | ||
76 | const char Archive::armag[sarmag] = | |
77 | { | |
78 | '!', '<', 'a', 'r', 'c', 'h', '>', '\n' | |
79 | }; | |
80 | ||
a1207466 CC |
81 | const char Archive::armagt[sarmag] = |
82 | { | |
83 | '!', '<', 't', 'h', 'i', 'n', '>', '\n' | |
84 | }; | |
85 | ||
61ba1cf9 ILT |
86 | const char Archive::arfmag[2] = { '`', '\n' }; |
87 | ||
2ea97941 ILT |
88 | Archive::Archive(const std::string& name, Input_file* input_file, |
89 | bool is_thin_archive, Dirsearch* dirpath, Task* task) | |
90 | : name_(name), input_file_(input_file), armap_(), armap_names_(), | |
65514900 | 91 | extended_names_(), armap_checked_(), seen_offsets_(), members_(), |
2ea97941 | 92 | is_thin_archive_(is_thin_archive), included_member_(false), |
09ec0418 CC |
93 | nested_archives_(), dirpath_(dirpath), task_(task), num_members_(0), |
94 | incremental_info_(NULL) | |
65514900 CC |
95 | { |
96 | this->no_export_ = | |
2ea97941 | 97 | parameters->options().check_excluded_libs(input_file->found_name()); |
65514900 CC |
98 | } |
99 | ||
61ba1cf9 ILT |
100 | // Set up the archive: read the symbol map and the extended name |
101 | // table. | |
102 | ||
103 | void | |
15f8229b | 104 | Archive::setup() |
61ba1cf9 | 105 | { |
3e95a404 ILT |
106 | // We need to ignore empty archives. |
107 | if (this->input_file_->file().filesize() == sarmag) | |
a1207466 | 108 | return; |
3e95a404 | 109 | |
61ba1cf9 ILT |
110 | // The first member of the archive should be the symbol table. |
111 | std::string armap_name; | |
8383303e | 112 | section_size_type armap_size = |
cb295612 | 113 | convert_to_section_size_type(this->read_header(sarmag, false, |
a1207466 | 114 | &armap_name, NULL)); |
75f2446e | 115 | off_t off = sarmag; |
4973341a ILT |
116 | if (armap_name.empty()) |
117 | { | |
118 | this->read_armap(sarmag + sizeof(Archive_header), armap_size); | |
119 | off = sarmag + sizeof(Archive_header) + armap_size; | |
120 | } | |
45aa233b | 121 | else if (!this->input_file_->options().whole_archive()) |
75f2446e ILT |
122 | gold_error(_("%s: no archive symbol table (run ranlib)"), |
123 | this->name().c_str()); | |
4973341a | 124 | |
cb295612 ILT |
125 | // See if there is an extended name table. We cache these views |
126 | // because it is likely that we will want to read the following | |
127 | // header in the add_symbols routine. | |
4973341a ILT |
128 | if ((off & 1) != 0) |
129 | ++off; | |
130 | std::string xname; | |
cb295612 | 131 | section_size_type extended_size = |
a1207466 | 132 | convert_to_section_size_type(this->read_header(off, true, &xname, NULL)); |
4973341a ILT |
133 | if (xname == "/") |
134 | { | |
135 | const unsigned char* p = this->get_view(off + sizeof(Archive_header), | |
39d0cb0e | 136 | extended_size, false, true); |
4973341a ILT |
137 | const char* px = reinterpret_cast<const char*>(p); |
138 | this->extended_names_.assign(px, extended_size); | |
139 | } | |
ac45a351 CC |
140 | bool preread_syms = (parameters->options().threads() |
141 | && parameters->options().preread_archive_symbols()); | |
142 | #ifndef ENABLE_THREADS | |
143 | preread_syms = false; | |
89fc3421 CC |
144 | #else |
145 | if (parameters->options().has_plugins()) | |
146 | preread_syms = false; | |
ac45a351 CC |
147 | #endif |
148 | if (preread_syms) | |
15f8229b | 149 | this->read_all_symbols(); |
a1207466 CC |
150 | } |
151 | ||
152 | // Unlock any nested archives. | |
4973341a | 153 | |
a1207466 CC |
154 | void |
155 | Archive::unlock_nested_archives() | |
156 | { | |
157 | for (Nested_archive_table::iterator p = this->nested_archives_.begin(); | |
158 | p != this->nested_archives_.end(); | |
159 | ++p) | |
160 | { | |
161 | p->second->unlock(this->task_); | |
162 | } | |
4973341a | 163 | } |
61ba1cf9 | 164 | |
4973341a ILT |
165 | // Read the archive symbol map. |
166 | ||
167 | void | |
8383303e | 168 | Archive::read_armap(off_t start, section_size_type size) |
4973341a | 169 | { |
ac45a351 CC |
170 | // To count the total number of archive members, we'll just count |
171 | // the number of times the file offset changes. Since most archives | |
172 | // group the symbols in the armap by object, this ought to give us | |
173 | // an accurate count. | |
174 | off_t last_seen_offset = -1; | |
175 | ||
61ba1cf9 | 176 | // Read in the entire armap. |
39d0cb0e | 177 | const unsigned char* p = this->get_view(start, size, true, false); |
61ba1cf9 ILT |
178 | |
179 | // Numbers in the armap are always big-endian. | |
180 | const elfcpp::Elf_Word* pword = reinterpret_cast<const elfcpp::Elf_Word*>(p); | |
f6ce93d6 | 181 | unsigned int nsyms = elfcpp::Swap<32, true>::readval(pword); |
61ba1cf9 ILT |
182 | ++pword; |
183 | ||
184 | // Note that the addition is in units of sizeof(elfcpp::Elf_Word). | |
185 | const char* pnames = reinterpret_cast<const char*>(pword + nsyms); | |
8383303e ILT |
186 | section_size_type names_size = |
187 | reinterpret_cast<const char*>(p) + size - pnames; | |
9eb9fa57 | 188 | this->armap_names_.assign(pnames, names_size); |
61ba1cf9 ILT |
189 | |
190 | this->armap_.resize(nsyms); | |
191 | ||
8383303e | 192 | section_offset_type name_offset = 0; |
61ba1cf9 ILT |
193 | for (unsigned int i = 0; i < nsyms; ++i) |
194 | { | |
9eb9fa57 ILT |
195 | this->armap_[i].name_offset = name_offset; |
196 | this->armap_[i].file_offset = elfcpp::Swap<32, true>::readval(pword); | |
197 | name_offset += strlen(pnames + name_offset) + 1; | |
61ba1cf9 | 198 | ++pword; |
ac45a351 CC |
199 | if (this->armap_[i].file_offset != last_seen_offset) |
200 | { | |
201 | last_seen_offset = this->armap_[i].file_offset; | |
202 | ++this->num_members_; | |
203 | } | |
61ba1cf9 ILT |
204 | } |
205 | ||
8383303e | 206 | if (static_cast<section_size_type>(name_offset) > names_size) |
75f2446e ILT |
207 | gold_error(_("%s: bad archive symbol table names"), |
208 | this->name().c_str()); | |
a93d6d07 ILT |
209 | |
210 | // This array keeps track of which symbols are for archive elements | |
211 | // which we have already included in the link. | |
212 | this->armap_checked_.resize(nsyms); | |
61ba1cf9 ILT |
213 | } |
214 | ||
215 | // Read the header of an archive member at OFF. Fail if something | |
216 | // goes wrong. Return the size of the member. Set *PNAME to the name | |
217 | // of the member. | |
218 | ||
219 | off_t | |
a1207466 CC |
220 | Archive::read_header(off_t off, bool cache, std::string* pname, |
221 | off_t* nested_off) | |
61ba1cf9 | 222 | { |
39d0cb0e ILT |
223 | const unsigned char* p = this->get_view(off, sizeof(Archive_header), true, |
224 | cache); | |
61ba1cf9 | 225 | const Archive_header* hdr = reinterpret_cast<const Archive_header*>(p); |
a1207466 | 226 | return this->interpret_header(hdr, off, pname, nested_off); |
4973341a | 227 | } |
61ba1cf9 | 228 | |
4973341a ILT |
229 | // Interpret the header of HDR, the header of the archive member at |
230 | // file offset OFF. Fail if something goes wrong. Return the size of | |
231 | // the member. Set *PNAME to the name of the member. | |
232 | ||
233 | off_t | |
234 | Archive::interpret_header(const Archive_header* hdr, off_t off, | |
92de84a6 | 235 | std::string* pname, off_t* nested_off) const |
4973341a | 236 | { |
61ba1cf9 ILT |
237 | if (memcmp(hdr->ar_fmag, arfmag, sizeof arfmag) != 0) |
238 | { | |
75f2446e ILT |
239 | gold_error(_("%s: malformed archive header at %zu"), |
240 | this->name().c_str(), static_cast<size_t>(off)); | |
241 | return this->input_file_->file().filesize() - off; | |
61ba1cf9 ILT |
242 | } |
243 | ||
244 | const int size_string_size = sizeof hdr->ar_size; | |
245 | char size_string[size_string_size + 1]; | |
246 | memcpy(size_string, hdr->ar_size, size_string_size); | |
247 | char* ps = size_string + size_string_size; | |
248 | while (ps[-1] == ' ') | |
249 | --ps; | |
250 | *ps = '\0'; | |
251 | ||
252 | errno = 0; | |
2ea97941 ILT |
253 | char* end; |
254 | off_t member_size = strtol(size_string, &end, 10); | |
255 | if (*end != '\0' | |
61ba1cf9 ILT |
256 | || member_size < 0 |
257 | || (member_size == LONG_MAX && errno == ERANGE)) | |
258 | { | |
75f2446e ILT |
259 | gold_error(_("%s: malformed archive header size at %zu"), |
260 | this->name().c_str(), static_cast<size_t>(off)); | |
261 | return this->input_file_->file().filesize() - off; | |
61ba1cf9 ILT |
262 | } |
263 | ||
264 | if (hdr->ar_name[0] != '/') | |
265 | { | |
266 | const char* name_end = strchr(hdr->ar_name, '/'); | |
267 | if (name_end == NULL | |
268 | || name_end - hdr->ar_name >= static_cast<int>(sizeof hdr->ar_name)) | |
269 | { | |
a0c4fb0a | 270 | gold_error(_("%s: malformed archive header name at %zu"), |
75f2446e ILT |
271 | this->name().c_str(), static_cast<size_t>(off)); |
272 | return this->input_file_->file().filesize() - off; | |
61ba1cf9 ILT |
273 | } |
274 | pname->assign(hdr->ar_name, name_end - hdr->ar_name); | |
a1207466 CC |
275 | if (nested_off != NULL) |
276 | *nested_off = 0; | |
61ba1cf9 ILT |
277 | } |
278 | else if (hdr->ar_name[1] == ' ') | |
279 | { | |
280 | // This is the symbol table. | |
114dfbe1 ILT |
281 | if (!pname->empty()) |
282 | pname->clear(); | |
61ba1cf9 ILT |
283 | } |
284 | else if (hdr->ar_name[1] == '/') | |
285 | { | |
286 | // This is the extended name table. | |
287 | pname->assign(1, '/'); | |
288 | } | |
289 | else | |
290 | { | |
291 | errno = 0; | |
2ea97941 | 292 | long x = strtol(hdr->ar_name + 1, &end, 10); |
a1207466 | 293 | long y = 0; |
2ea97941 ILT |
294 | if (*end == ':') |
295 | y = strtol(end + 1, &end, 10); | |
296 | if (*end != ' ' | |
61ba1cf9 ILT |
297 | || x < 0 |
298 | || (x == LONG_MAX && errno == ERANGE) | |
299 | || static_cast<size_t>(x) >= this->extended_names_.size()) | |
300 | { | |
75f2446e ILT |
301 | gold_error(_("%s: bad extended name index at %zu"), |
302 | this->name().c_str(), static_cast<size_t>(off)); | |
303 | return this->input_file_->file().filesize() - off; | |
61ba1cf9 ILT |
304 | } |
305 | ||
2ea97941 ILT |
306 | const char* name = this->extended_names_.data() + x; |
307 | const char* name_end = strchr(name, '\n'); | |
308 | if (static_cast<size_t>(name_end - name) > this->extended_names_.size() | |
a1207466 | 309 | || name_end[-1] != '/') |
61ba1cf9 | 310 | { |
75f2446e ILT |
311 | gold_error(_("%s: bad extended name entry at header %zu"), |
312 | this->name().c_str(), static_cast<size_t>(off)); | |
313 | return this->input_file_->file().filesize() - off; | |
61ba1cf9 | 314 | } |
2ea97941 | 315 | pname->assign(name, name_end - 1 - name); |
a1207466 CC |
316 | if (nested_off != NULL) |
317 | *nested_off = y; | |
61ba1cf9 ILT |
318 | } |
319 | ||
320 | return member_size; | |
321 | } | |
322 | ||
92de84a6 ILT |
323 | // An archive member iterator. |
324 | ||
325 | class Archive::const_iterator | |
326 | { | |
327 | public: | |
328 | // The header of an archive member. This is what this iterator | |
329 | // points to. | |
330 | struct Header | |
331 | { | |
332 | // The name of the member. | |
333 | std::string name; | |
334 | // The file offset of the member. | |
335 | off_t off; | |
336 | // The file offset of a nested archive member. | |
337 | off_t nested_off; | |
338 | // The size of the member. | |
339 | off_t size; | |
340 | }; | |
341 | ||
2a00e4fb | 342 | const_iterator(Archive* archive, off_t off) |
92de84a6 ILT |
343 | : archive_(archive), off_(off) |
344 | { this->read_next_header(); } | |
345 | ||
346 | const Header& | |
347 | operator*() const | |
348 | { return this->header_; } | |
349 | ||
350 | const Header* | |
351 | operator->() const | |
352 | { return &this->header_; } | |
353 | ||
354 | const_iterator& | |
355 | operator++() | |
356 | { | |
357 | if (this->off_ == this->archive_->file().filesize()) | |
358 | return *this; | |
359 | this->off_ += sizeof(Archive_header); | |
360 | if (!this->archive_->is_thin_archive()) | |
361 | this->off_ += this->header_.size; | |
362 | if ((this->off_ & 1) != 0) | |
363 | ++this->off_; | |
364 | this->read_next_header(); | |
365 | return *this; | |
366 | } | |
367 | ||
368 | const_iterator | |
369 | operator++(int) | |
370 | { | |
371 | const_iterator ret = *this; | |
372 | ++*this; | |
373 | return ret; | |
374 | } | |
375 | ||
376 | bool | |
377 | operator==(const const_iterator p) const | |
378 | { return this->off_ == p->off; } | |
379 | ||
380 | bool | |
381 | operator!=(const const_iterator p) const | |
382 | { return this->off_ != p->off; } | |
383 | ||
384 | private: | |
385 | void | |
386 | read_next_header(); | |
387 | ||
388 | // The underlying archive. | |
2a00e4fb | 389 | Archive* archive_; |
92de84a6 ILT |
390 | // The current offset in the file. |
391 | off_t off_; | |
392 | // The current archive header. | |
393 | Header header_; | |
394 | }; | |
395 | ||
396 | // Read the next archive header. | |
4973341a ILT |
397 | |
398 | void | |
92de84a6 | 399 | Archive::const_iterator::read_next_header() |
4973341a | 400 | { |
92de84a6 | 401 | off_t filesize = this->archive_->file().filesize(); |
4973341a ILT |
402 | while (true) |
403 | { | |
92de84a6 ILT |
404 | if (filesize - this->off_ < static_cast<off_t>(sizeof(Archive_header))) |
405 | { | |
406 | if (filesize != this->off_) | |
407 | { | |
408 | gold_error(_("%s: short archive header at %zu"), | |
409 | this->archive_->filename().c_str(), | |
410 | static_cast<size_t>(this->off_)); | |
411 | this->off_ = filesize; | |
412 | } | |
413 | this->header_.off = filesize; | |
414 | return; | |
415 | } | |
416 | ||
417 | unsigned char buf[sizeof(Archive_header)]; | |
418 | this->archive_->file().read(this->off_, sizeof(Archive_header), buf); | |
419 | ||
420 | const Archive_header* hdr = reinterpret_cast<const Archive_header*>(buf); | |
421 | this->header_.size = | |
422 | this->archive_->interpret_header(hdr, this->off_, &this->header_.name, | |
423 | &this->header_.nested_off); | |
424 | this->header_.off = this->off_; | |
425 | ||
426 | // Skip special members. | |
427 | if (!this->header_.name.empty() && this->header_.name != "/") | |
428 | return; | |
429 | ||
430 | this->off_ += sizeof(Archive_header) + this->header_.size; | |
431 | if ((this->off_ & 1) != 0) | |
432 | ++this->off_; | |
4973341a ILT |
433 | } |
434 | } | |
435 | ||
92de84a6 ILT |
436 | // Initial iterator. |
437 | ||
438 | Archive::const_iterator | |
2a00e4fb | 439 | Archive::begin() |
92de84a6 ILT |
440 | { |
441 | return Archive::const_iterator(this, sarmag); | |
442 | } | |
443 | ||
444 | // Final iterator. | |
445 | ||
446 | Archive::const_iterator | |
2a00e4fb | 447 | Archive::end() |
92de84a6 ILT |
448 | { |
449 | return Archive::const_iterator(this, this->input_file_->file().filesize()); | |
450 | } | |
451 | ||
ac45a351 CC |
452 | // Get the file and offset for an archive member, which may be an |
453 | // external member of a thin archive. Set *INPUT_FILE to the | |
454 | // file containing the actual member, *MEMOFF to the offset | |
455 | // within that file (0 if not a nested archive), and *MEMBER_NAME | |
456 | // to the name of the archive member. Return TRUE on success. | |
457 | ||
458 | bool | |
2ea97941 | 459 | Archive::get_file_and_offset(off_t off, Input_file** input_file, off_t* memoff, |
89fc3421 | 460 | off_t* memsize, std::string* member_name) |
ac45a351 CC |
461 | { |
462 | off_t nested_off; | |
463 | ||
89fc3421 | 464 | *memsize = this->read_header(off, false, member_name, &nested_off); |
ac45a351 | 465 | |
2ea97941 | 466 | *input_file = this->input_file_; |
ac45a351 CC |
467 | *memoff = off + static_cast<off_t>(sizeof(Archive_header)); |
468 | ||
469 | if (!this->is_thin_archive_) | |
470 | return true; | |
471 | ||
472 | // Adjust a relative pathname so that it is relative | |
473 | // to the directory containing the archive. | |
474 | if (!IS_ABSOLUTE_PATH(member_name->c_str())) | |
475 | { | |
fbd8a257 | 476 | const char* arch_path = this->filename().c_str(); |
ac45a351 CC |
477 | const char* basename = lbasename(arch_path); |
478 | if (basename > arch_path) | |
479 | member_name->replace(0, 0, | |
fbd8a257 | 480 | this->filename().substr(0, basename - arch_path)); |
ac45a351 CC |
481 | } |
482 | ||
483 | if (nested_off > 0) | |
484 | { | |
485 | // This is a member of a nested archive. Open the containing | |
486 | // archive if we don't already have it open, then do a recursive | |
487 | // call to include the member from that archive. | |
488 | Archive* arch; | |
489 | Nested_archive_table::const_iterator p = | |
490 | this->nested_archives_.find(*member_name); | |
491 | if (p != this->nested_archives_.end()) | |
492 | arch = p->second; | |
493 | else | |
494 | { | |
495 | Input_file_argument* input_file_arg = | |
ae3b5189 CD |
496 | new Input_file_argument(member_name->c_str(), |
497 | Input_file_argument::INPUT_FILE_TYPE_FILE, | |
498 | "", false, parameters->options()); | |
2ea97941 | 499 | *input_file = new Input_file(input_file_arg); |
15f8229b | 500 | int dummy = 0; |
2ea97941 | 501 | if (!(*input_file)->open(*this->dirpath_, this->task_, &dummy)) |
ac45a351 | 502 | return false; |
2ea97941 | 503 | arch = new Archive(*member_name, *input_file, false, this->dirpath_, |
ac45a351 | 504 | this->task_); |
15f8229b | 505 | arch->setup(); |
ac45a351 CC |
506 | std::pair<Nested_archive_table::iterator, bool> ins = |
507 | this->nested_archives_.insert(std::make_pair(*member_name, arch)); | |
508 | gold_assert(ins.second); | |
509 | } | |
2ea97941 | 510 | return arch->get_file_and_offset(nested_off, input_file, memoff, |
15f8229b | 511 | memsize, member_name); |
ac45a351 CC |
512 | } |
513 | ||
514 | // This is an external member of a thin archive. Open the | |
515 | // file as a regular relocatable object file. | |
516 | Input_file_argument* input_file_arg = | |
ae3b5189 CD |
517 | new Input_file_argument(member_name->c_str(), |
518 | Input_file_argument::INPUT_FILE_TYPE_FILE, | |
519 | "", false, this->input_file_->options()); | |
2ea97941 | 520 | *input_file = new Input_file(input_file_arg); |
15f8229b | 521 | int dummy = 0; |
2ea97941 | 522 | if (!(*input_file)->open(*this->dirpath_, this->task_, &dummy)) |
ac45a351 CC |
523 | return false; |
524 | ||
525 | *memoff = 0; | |
2ea97941 | 526 | *memsize = (*input_file)->file().filesize(); |
ac45a351 CC |
527 | return true; |
528 | } | |
529 | ||
15f8229b ILT |
530 | // Return an ELF object for the member at offset OFF. If the ELF |
531 | // object has an unsupported target type, set *PUNCONFIGURED to true | |
532 | // and return NULL. | |
ac45a351 CC |
533 | |
534 | Object* | |
15f8229b | 535 | Archive::get_elf_object_for_member(off_t off, bool* punconfigured) |
ac45a351 | 536 | { |
15f8229b ILT |
537 | *punconfigured = false; |
538 | ||
2ea97941 | 539 | Input_file* input_file; |
ac45a351 | 540 | off_t memoff; |
89fc3421 | 541 | off_t memsize; |
15f8229b | 542 | std::string member_name; |
2ea97941 | 543 | if (!this->get_file_and_offset(off, &input_file, &memoff, &memsize, |
15f8229b | 544 | &member_name)) |
ac45a351 CC |
545 | return NULL; |
546 | ||
89fc3421 CC |
547 | if (parameters->options().has_plugins()) |
548 | { | |
2ea97941 | 549 | Object* obj = parameters->options().plugins()->claim_file(input_file, |
89fc3421 CC |
550 | memoff, |
551 | memsize); | |
552 | if (obj != NULL) | |
553 | { | |
554 | // The input file was claimed by a plugin, and its symbols | |
555 | // have been provided by the plugin. | |
89fc3421 CC |
556 | return obj; |
557 | } | |
558 | } | |
559 | ||
f6060a4d ILT |
560 | const unsigned char* ehdr; |
561 | int read_size; | |
2ea97941 | 562 | if (!is_elf_object(input_file, memoff, &ehdr, &read_size)) |
ac45a351 CC |
563 | { |
564 | gold_error(_("%s: member at %zu is not an ELF object"), | |
565 | this->name().c_str(), static_cast<size_t>(off)); | |
566 | return NULL; | |
567 | } | |
568 | ||
ca09d69a | 569 | Object* obj = make_elf_object((std::string(this->input_file_->filename()) |
65514900 | 570 | + "(" + member_name + ")"), |
2ea97941 | 571 | input_file, memoff, ehdr, read_size, |
65514900 | 572 | punconfigured); |
029ba973 ILT |
573 | if (obj == NULL) |
574 | return NULL; | |
65514900 CC |
575 | obj->set_no_export(this->no_export()); |
576 | return obj; | |
ac45a351 CC |
577 | } |
578 | ||
579 | // Read the symbols from all the archive members in the link. | |
580 | ||
581 | void | |
15f8229b | 582 | Archive::read_all_symbols() |
ac45a351 CC |
583 | { |
584 | for (Archive::const_iterator p = this->begin(); | |
585 | p != this->end(); | |
586 | ++p) | |
15f8229b | 587 | this->read_symbols(p->off); |
ac45a351 CC |
588 | } |
589 | ||
590 | // Read the symbols from an archive member in the link. OFF is the file | |
591 | // offset of the member header. | |
592 | ||
593 | void | |
15f8229b | 594 | Archive::read_symbols(off_t off) |
ac45a351 | 595 | { |
15f8229b ILT |
596 | bool dummy; |
597 | Object* obj = this->get_elf_object_for_member(off, &dummy); | |
ac45a351 CC |
598 | |
599 | if (obj == NULL) | |
600 | return; | |
601 | ||
602 | Read_symbols_data* sd = new Read_symbols_data; | |
603 | obj->read_symbols(sd); | |
604 | Archive_member member(obj, sd); | |
605 | this->members_[off] = member; | |
606 | } | |
607 | ||
b0193076 | 608 | Archive::Should_include |
88a4108b ILT |
609 | Archive::should_include_member(Symbol_table* symtab, Layout* layout, |
610 | const char* sym_name, Symbol** symp, | |
611 | std::string* why, char** tmpbufp, | |
b0193076 | 612 | size_t* tmpbuflen) |
473b7a13 RÁE |
613 | { |
614 | // In an object file, and therefore in an archive map, an | |
615 | // '@' in the name separates the symbol name from the | |
616 | // version name. If there are two '@' characters, this is | |
617 | // the default version. | |
618 | char* tmpbuf = *tmpbufp; | |
619 | const char* ver = strchr(sym_name, '@'); | |
620 | bool def = false; | |
621 | if (ver != NULL) | |
622 | { | |
623 | size_t symlen = ver - sym_name; | |
624 | if (symlen + 1 > *tmpbuflen) | |
625 | { | |
626 | tmpbuf = static_cast<char*>(xrealloc(tmpbuf, symlen + 1)); | |
627 | *tmpbufp = tmpbuf; | |
628 | *tmpbuflen = symlen + 1; | |
629 | } | |
630 | memcpy(tmpbuf, sym_name, symlen); | |
631 | tmpbuf[symlen] = '\0'; | |
632 | sym_name = tmpbuf; | |
633 | ||
634 | ++ver; | |
635 | if (*ver == '@') | |
636 | { | |
637 | ++ver; | |
638 | def = true; | |
639 | } | |
640 | } | |
641 | ||
642 | Symbol* sym = symtab->lookup(sym_name, ver); | |
643 | if (def | |
644 | && ver != NULL | |
645 | && (sym == NULL | |
646 | || !sym->is_undefined() | |
647 | || sym->binding() == elfcpp::STB_WEAK)) | |
648 | sym = symtab->lookup(sym_name, NULL); | |
649 | ||
650 | *symp = sym; | |
651 | ||
652 | if (sym == NULL) | |
653 | { | |
654 | // Check whether the symbol was named in a -u option. | |
88a4108b | 655 | if (parameters->options().is_undefined(sym_name)) |
473b7a13 RÁE |
656 | { |
657 | *why = "-u "; | |
658 | *why += sym_name; | |
659 | } | |
88a4108b ILT |
660 | else if (layout->script_options()->is_referenced(sym_name)) |
661 | { | |
662 | size_t alc = 100 + strlen(sym_name); | |
663 | char* buf = new char[alc]; | |
664 | snprintf(buf, alc, _("script or expression reference to %s"), | |
665 | sym_name); | |
666 | *why = buf; | |
667 | delete[] buf; | |
668 | } | |
669 | else | |
670 | return Archive::SHOULD_INCLUDE_UNKNOWN; | |
473b7a13 RÁE |
671 | } |
672 | else if (!sym->is_undefined()) | |
b0193076 | 673 | return Archive::SHOULD_INCLUDE_NO; |
473b7a13 | 674 | else if (sym->binding() == elfcpp::STB_WEAK) |
b0193076 | 675 | return Archive::SHOULD_INCLUDE_UNKNOWN; |
473b7a13 | 676 | |
b0193076 | 677 | return Archive::SHOULD_INCLUDE_YES; |
473b7a13 RÁE |
678 | } |
679 | ||
ac45a351 CC |
680 | // Select members from the archive and add them to the link. We walk |
681 | // through the elements in the archive map, and look each one up in | |
682 | // the symbol table. If it exists as a strong undefined symbol, we | |
683 | // pull in the corresponding element. We have to do this in a loop, | |
684 | // since pulling in one element may create new undefined symbols which | |
15f8229b ILT |
685 | // may be satisfied by other objects in the archive. Return true in |
686 | // the normal case, false if the first member we tried to add from | |
687 | // this archive had an incompatible target. | |
ac45a351 | 688 | |
15f8229b | 689 | bool |
ac45a351 CC |
690 | Archive::add_symbols(Symbol_table* symtab, Layout* layout, |
691 | Input_objects* input_objects, Mapfile* mapfile) | |
692 | { | |
693 | ++Archive::total_archives; | |
694 | ||
695 | if (this->input_file_->options().whole_archive()) | |
696 | return this->include_all_members(symtab, layout, input_objects, | |
697 | mapfile); | |
698 | ||
699 | Archive::total_members += this->num_members_; | |
700 | ||
701 | input_objects->archive_start(this); | |
702 | ||
703 | const size_t armap_size = this->armap_.size(); | |
704 | ||
705 | // This is a quick optimization, since we usually see many symbols | |
706 | // in a row with the same offset. last_seen_offset holds the last | |
707 | // offset we saw that was present in the seen_offsets_ set. | |
708 | off_t last_seen_offset = -1; | |
709 | ||
710 | // Track which symbols in the symbol table we've already found to be | |
711 | // defined. | |
712 | ||
9c5b8369 ILT |
713 | char* tmpbuf = NULL; |
714 | size_t tmpbuflen = 0; | |
ac45a351 CC |
715 | bool added_new_object; |
716 | do | |
717 | { | |
718 | added_new_object = false; | |
719 | for (size_t i = 0; i < armap_size; ++i) | |
720 | { | |
721 | if (this->armap_checked_[i]) | |
722 | continue; | |
723 | if (this->armap_[i].file_offset == last_seen_offset) | |
724 | { | |
725 | this->armap_checked_[i] = true; | |
726 | continue; | |
727 | } | |
728 | if (this->seen_offsets_.find(this->armap_[i].file_offset) | |
729 | != this->seen_offsets_.end()) | |
730 | { | |
731 | this->armap_checked_[i] = true; | |
732 | last_seen_offset = this->armap_[i].file_offset; | |
733 | continue; | |
734 | } | |
735 | ||
736 | const char* sym_name = (this->armap_names_.data() | |
737 | + this->armap_[i].name_offset); | |
9c5b8369 | 738 | |
473b7a13 RÁE |
739 | Symbol* sym; |
740 | std::string why; | |
b0193076 | 741 | Archive::Should_include t = |
88a4108b ILT |
742 | Archive::should_include_member(symtab, layout, sym_name, &sym, |
743 | &why, &tmpbuf, &tmpbuflen); | |
9c5b8369 | 744 | |
b0193076 RÁE |
745 | if (t == Archive::SHOULD_INCLUDE_NO |
746 | || t == Archive::SHOULD_INCLUDE_YES) | |
473b7a13 | 747 | this->armap_checked_[i] = true; |
9c5b8369 | 748 | |
b0193076 | 749 | if (t != Archive::SHOULD_INCLUDE_YES) |
ac45a351 CC |
750 | continue; |
751 | ||
752 | // We want to include this object in the link. | |
753 | last_seen_offset = this->armap_[i].file_offset; | |
754 | this->seen_offsets_.insert(last_seen_offset); | |
ac45a351 | 755 | |
15f8229b ILT |
756 | if (!this->include_member(symtab, layout, input_objects, |
757 | last_seen_offset, mapfile, sym, | |
758 | why.c_str())) | |
9c5b8369 ILT |
759 | { |
760 | if (tmpbuf != NULL) | |
761 | free(tmpbuf); | |
762 | return false; | |
763 | } | |
ac45a351 CC |
764 | |
765 | added_new_object = true; | |
766 | } | |
767 | } | |
768 | while (added_new_object); | |
769 | ||
9c5b8369 ILT |
770 | if (tmpbuf != NULL) |
771 | free(tmpbuf); | |
772 | ||
ac45a351 | 773 | input_objects->archive_stop(this); |
15f8229b ILT |
774 | |
775 | return true; | |
ac45a351 CC |
776 | } |
777 | ||
92de84a6 ILT |
778 | // Include all the archive members in the link. This is for --whole-archive. |
779 | ||
15f8229b | 780 | bool |
92de84a6 ILT |
781 | Archive::include_all_members(Symbol_table* symtab, Layout* layout, |
782 | Input_objects* input_objects, Mapfile* mapfile) | |
783 | { | |
784 | input_objects->archive_start(this); | |
785 | ||
ac45a351 CC |
786 | if (this->members_.size() > 0) |
787 | { | |
788 | std::map<off_t, Archive_member>::const_iterator p; | |
789 | for (p = this->members_.begin(); | |
790 | p != this->members_.end(); | |
791 | ++p) | |
792 | { | |
15f8229b ILT |
793 | if (!this->include_member(symtab, layout, input_objects, p->first, |
794 | mapfile, NULL, "--whole-archive")) | |
795 | return false; | |
ac45a351 CC |
796 | ++Archive::total_members; |
797 | } | |
798 | } | |
799 | else | |
800 | { | |
801 | for (Archive::const_iterator p = this->begin(); | |
802 | p != this->end(); | |
803 | ++p) | |
804 | { | |
15f8229b ILT |
805 | if (!this->include_member(symtab, layout, input_objects, p->off, |
806 | mapfile, NULL, "--whole-archive")) | |
807 | return false; | |
ac45a351 CC |
808 | ++Archive::total_members; |
809 | } | |
810 | } | |
92de84a6 ILT |
811 | |
812 | input_objects->archive_stop(this); | |
15f8229b ILT |
813 | |
814 | return true; | |
92de84a6 ILT |
815 | } |
816 | ||
817 | // Return the number of members in the archive. This is only used for | |
818 | // reports. | |
819 | ||
820 | size_t | |
2a00e4fb | 821 | Archive::count_members() |
92de84a6 ILT |
822 | { |
823 | size_t ret = 0; | |
824 | for (Archive::const_iterator p = this->begin(); | |
825 | p != this->end(); | |
826 | ++p) | |
827 | ++ret; | |
828 | return ret; | |
829 | } | |
830 | ||
61ba1cf9 | 831 | // Include an archive member in the link. OFF is the file offset of |
7d9e3d98 | 832 | // the member header. WHY is the reason we are including this member. |
15f8229b ILT |
833 | // Return true if we added the member or if we had an error, return |
834 | // false if this was the first member we tried to add from this | |
835 | // archive and it had an incompatible format. | |
61ba1cf9 | 836 | |
15f8229b | 837 | bool |
7e1edb90 | 838 | Archive::include_member(Symbol_table* symtab, Layout* layout, |
7d9e3d98 ILT |
839 | Input_objects* input_objects, off_t off, |
840 | Mapfile* mapfile, Symbol* sym, const char* why) | |
61ba1cf9 | 841 | { |
ac45a351 | 842 | ++Archive::total_members_loaded; |
7d9e3d98 | 843 | |
ac45a351 CC |
844 | std::map<off_t, Archive_member>::const_iterator p = this->members_.find(off); |
845 | if (p != this->members_.end()) | |
a1207466 | 846 | { |
ca09d69a | 847 | Object* obj = p->second.obj_; |
15f8229b | 848 | |
ca09d69a | 849 | Read_symbols_data* sd = p->second.sd_; |
ac45a351 CC |
850 | if (mapfile != NULL) |
851 | mapfile->report_include_archive_member(obj->name(), sym, why); | |
852 | if (input_objects->add_object(obj)) | |
a1207466 | 853 | { |
ac45a351 | 854 | obj->layout(symtab, layout, sd); |
f488e4b0 | 855 | obj->add_symbols(symtab, sd, layout); |
15f8229b | 856 | this->included_member_ = true; |
a1207466 | 857 | } |
ac45a351 | 858 | delete sd; |
15f8229b ILT |
859 | return true; |
860 | } | |
861 | ||
862 | bool unconfigured; | |
863 | Object* obj = this->get_elf_object_for_member(off, &unconfigured); | |
864 | ||
865 | if (!this->included_member_ | |
866 | && this->searched_for() | |
029ba973 ILT |
867 | && obj == NULL |
868 | && unconfigured) | |
f2d707b5 | 869 | return false; |
61ba1cf9 | 870 | |
ac45a351 | 871 | if (obj == NULL) |
15f8229b | 872 | return true; |
61ba1cf9 | 873 | |
ac45a351 CC |
874 | if (mapfile != NULL) |
875 | mapfile->report_include_archive_member(obj->name(), sym, why); | |
61ba1cf9 | 876 | |
89fc3421 CC |
877 | Pluginobj* pluginobj = obj->pluginobj(); |
878 | if (pluginobj != NULL) | |
879 | { | |
f488e4b0 | 880 | pluginobj->add_symbols(symtab, NULL, layout); |
15f8229b ILT |
881 | this->included_member_ = true; |
882 | return true; | |
89fc3421 CC |
883 | } |
884 | ||
15f8229b | 885 | if (!input_objects->add_object(obj)) |
f2d707b5 ILT |
886 | { |
887 | // If this is an external member of a thin archive, unlock the | |
888 | // file. | |
889 | if (obj->offset() == 0) | |
890 | obj->unlock(this->task_); | |
891 | delete obj; | |
892 | } | |
15f8229b | 893 | else |
019cdb1a | 894 | { |
00698fc5 | 895 | { |
09ec0418 CC |
896 | if (layout->incremental_inputs() != NULL) |
897 | layout->incremental_inputs()->report_object(obj, this); | |
00698fc5 CC |
898 | Read_symbols_data sd; |
899 | obj->read_symbols(&sd); | |
900 | obj->layout(symtab, layout, &sd); | |
901 | obj->add_symbols(symtab, &sd, layout); | |
902 | } | |
fbd8a257 CC |
903 | |
904 | // If this is an external member of a thin archive, unlock the file | |
905 | // for the next task. | |
906 | if (obj->offset() == 0) | |
907 | obj->unlock(this->task_); | |
15f8229b ILT |
908 | |
909 | this->included_member_ = true; | |
019cdb1a | 910 | } |
15f8229b ILT |
911 | |
912 | return true; | |
ac45a351 | 913 | } |
61ba1cf9 | 914 | |
ac45a351 CC |
915 | // Print statistical information to stderr. This is used for --stats. |
916 | ||
917 | void | |
918 | Archive::print_stats() | |
919 | { | |
920 | fprintf(stderr, _("%s: archive libraries: %u\n"), | |
921 | program_name, Archive::total_archives); | |
922 | fprintf(stderr, _("%s: total archive members: %u\n"), | |
923 | program_name, Archive::total_members); | |
924 | fprintf(stderr, _("%s: loaded archive members: %u\n"), | |
925 | program_name, Archive::total_members_loaded); | |
61ba1cf9 ILT |
926 | } |
927 | ||
928 | // Add_archive_symbols methods. | |
929 | ||
930 | Add_archive_symbols::~Add_archive_symbols() | |
931 | { | |
932 | if (this->this_blocker_ != NULL) | |
933 | delete this->this_blocker_; | |
934 | // next_blocker_ is deleted by the task associated with the next | |
935 | // input file. | |
936 | } | |
937 | ||
938 | // Return whether we can add the archive symbols. We are blocked by | |
939 | // this_blocker_. We block next_blocker_. We also lock the file. | |
940 | ||
17a1d0a9 ILT |
941 | Task_token* |
942 | Add_archive_symbols::is_runnable() | |
61ba1cf9 ILT |
943 | { |
944 | if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked()) | |
17a1d0a9 ILT |
945 | return this->this_blocker_; |
946 | return NULL; | |
61ba1cf9 ILT |
947 | } |
948 | ||
17a1d0a9 ILT |
949 | void |
950 | Add_archive_symbols::locks(Task_locker* tl) | |
61ba1cf9 | 951 | { |
17a1d0a9 ILT |
952 | tl->add(this, this->next_blocker_); |
953 | tl->add(this, this->archive_->token()); | |
61ba1cf9 ILT |
954 | } |
955 | ||
956 | void | |
15f8229b | 957 | Add_archive_symbols::run(Workqueue* workqueue) |
61ba1cf9 | 958 | { |
09ec0418 CC |
959 | // For an incremental link, begin recording layout information. |
960 | Incremental_inputs* incremental_inputs = this->layout_->incremental_inputs(); | |
961 | if (incremental_inputs != NULL) | |
962 | incremental_inputs->report_archive_begin(this->archive_); | |
963 | ||
15f8229b ILT |
964 | bool added = this->archive_->add_symbols(this->symtab_, this->layout_, |
965 | this->input_objects_, | |
966 | this->mapfile_); | |
a1207466 CC |
967 | this->archive_->unlock_nested_archives(); |
968 | ||
17a1d0a9 | 969 | this->archive_->release(); |
39d0cb0e | 970 | this->archive_->clear_uncached_views(); |
17a1d0a9 | 971 | |
15f8229b ILT |
972 | if (!added) |
973 | { | |
974 | // This archive holds object files which are incompatible with | |
975 | // our output file. | |
976 | Read_symbols::incompatible_warning(this->input_argument_, | |
977 | this->archive_->input_file()); | |
978 | Read_symbols::requeue(workqueue, this->input_objects_, this->symtab_, | |
979 | this->layout_, this->dirpath_, this->dirindex_, | |
980 | this->mapfile_, this->input_argument_, | |
981 | this->input_group_, this->next_blocker_); | |
982 | delete this->archive_; | |
983 | return; | |
984 | } | |
985 | ||
ead1e424 ILT |
986 | if (this->input_group_ != NULL) |
987 | this->input_group_->add_archive(this->archive_); | |
988 | else | |
989 | { | |
09ec0418 CC |
990 | // For an incremental link, finish recording the layout information. |
991 | Incremental_inputs* incremental_inputs = this->layout_->incremental_inputs(); | |
992 | if (incremental_inputs != NULL) | |
993 | incremental_inputs->report_archive_end(this->archive_); | |
994 | ||
ead1e424 ILT |
995 | // We no longer need to know about this archive. |
996 | delete this->archive_; | |
c7912668 | 997 | this->archive_ = NULL; |
ead1e424 | 998 | } |
61ba1cf9 ILT |
999 | } |
1000 | ||
b0193076 RÁE |
1001 | // Class Lib_group static variables. |
1002 | unsigned int Lib_group::total_lib_groups; | |
1003 | unsigned int Lib_group::total_members; | |
1004 | unsigned int Lib_group::total_members_loaded; | |
1005 | ||
1006 | Lib_group::Lib_group(const Input_file_lib* lib, Task* task) | |
1007 | : lib_(lib), task_(task), members_() | |
1008 | { | |
1009 | this->members_.resize(lib->size()); | |
1010 | } | |
1011 | ||
1012 | // Select members from the lib group and add them to the link. We walk | |
1013 | // through the the members, and check if each one up should be included. | |
1014 | // If the object says it should be included, we do so. We have to do | |
1015 | // this in a loop, since including one member may create new undefined | |
1016 | // symbols which may be satisfied by other members. | |
1017 | ||
1018 | void | |
1019 | Lib_group::add_symbols(Symbol_table* symtab, Layout* layout, | |
1020 | Input_objects* input_objects) | |
1021 | { | |
1022 | ++Lib_group::total_lib_groups; | |
1023 | ||
1024 | Lib_group::total_members += this->members_.size(); | |
1025 | ||
1026 | bool added_new_object; | |
1027 | do | |
1028 | { | |
1029 | added_new_object = false; | |
1030 | unsigned int i = 0; | |
1031 | while (i < this->members_.size()) | |
1032 | { | |
1033 | const Archive_member& member = this->members_[i]; | |
ca09d69a | 1034 | Object* obj = member.obj_; |
b0193076 RÁE |
1035 | std::string why; |
1036 | ||
1037 | // Skip files with no symbols. Plugin objects have | |
1038 | // member.sd_ == NULL. | |
1039 | if (obj != NULL | |
1040 | && (member.sd_ == NULL || member.sd_->symbol_names != NULL)) | |
1041 | { | |
1042 | Archive::Should_include t = obj->should_include_member(symtab, | |
88a4108b | 1043 | layout, |
b0193076 RÁE |
1044 | member.sd_, |
1045 | &why); | |
1046 | ||
1047 | if (t != Archive::SHOULD_INCLUDE_YES) | |
1048 | { | |
1049 | ++i; | |
1050 | continue; | |
1051 | } | |
1052 | ||
1053 | this->include_member(symtab, layout, input_objects, member); | |
1054 | ||
1055 | added_new_object = true; | |
1056 | } | |
1057 | else | |
1058 | { | |
1059 | if (member.sd_ != NULL) | |
9919d93b CC |
1060 | { |
1061 | // The file must be locked in order to destroy the views | |
1062 | // associated with it. | |
1063 | gold_assert(obj != NULL); | |
1064 | obj->lock(this->task_); | |
1065 | delete member.sd_; | |
1066 | obj->unlock(this->task_); | |
1067 | } | |
b0193076 RÁE |
1068 | } |
1069 | ||
1070 | this->members_[i] = this->members_.back(); | |
1071 | this->members_.pop_back(); | |
1072 | } | |
1073 | } | |
1074 | while (added_new_object); | |
1075 | } | |
1076 | ||
1077 | // Include a lib group member in the link. | |
1078 | ||
1079 | void | |
1080 | Lib_group::include_member(Symbol_table* symtab, Layout* layout, | |
1081 | Input_objects* input_objects, | |
1082 | const Archive_member& member) | |
1083 | { | |
1084 | ++Lib_group::total_members_loaded; | |
1085 | ||
1086 | Object* obj = member.obj_; | |
1087 | gold_assert(obj != NULL); | |
1088 | ||
1089 | Pluginobj* pluginobj = obj->pluginobj(); | |
1090 | if (pluginobj != NULL) | |
1091 | { | |
1092 | pluginobj->add_symbols(symtab, NULL, layout); | |
1093 | return; | |
1094 | } | |
1095 | ||
1096 | Read_symbols_data* sd = member.sd_; | |
1097 | gold_assert(sd != NULL); | |
1098 | obj->lock(this->task_); | |
1099 | if (input_objects->add_object(obj)) | |
1100 | { | |
09ec0418 CC |
1101 | // FIXME: Record incremental link info for --start-lib/--end-lib. |
1102 | if (layout->incremental_inputs() != NULL) | |
1103 | layout->incremental_inputs()->report_object(obj, NULL); | |
b0193076 RÁE |
1104 | obj->layout(symtab, layout, sd); |
1105 | obj->add_symbols(symtab, sd, layout); | |
b0193076 RÁE |
1106 | } |
1107 | delete sd; | |
9919d93b CC |
1108 | // Unlock the file for the next task. |
1109 | obj->unlock(this->task_); | |
b0193076 RÁE |
1110 | } |
1111 | ||
1112 | // Print statistical information to stderr. This is used for --stats. | |
1113 | ||
1114 | void | |
1115 | Lib_group::print_stats() | |
1116 | { | |
1117 | fprintf(stderr, _("%s: lib groups: %u\n"), | |
1118 | program_name, Lib_group::total_lib_groups); | |
1119 | fprintf(stderr, _("%s: total lib groups members: %u\n"), | |
1120 | program_name, Lib_group::total_members); | |
1121 | fprintf(stderr, _("%s: loaded lib groups members: %u\n"), | |
1122 | program_name, Lib_group::total_members_loaded); | |
1123 | } | |
1124 | ||
1125 | Task_token* | |
1126 | Add_lib_group_symbols::is_runnable() | |
1127 | { | |
97b4be1c CC |
1128 | if (this->readsyms_blocker_ != NULL && this->readsyms_blocker_->is_blocked()) |
1129 | return this->readsyms_blocker_; | |
b0193076 RÁE |
1130 | if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked()) |
1131 | return this->this_blocker_; | |
1132 | return NULL; | |
1133 | } | |
1134 | ||
1135 | void | |
1136 | Add_lib_group_symbols::locks(Task_locker* tl) | |
1137 | { | |
1138 | tl->add(this, this->next_blocker_); | |
1139 | } | |
1140 | ||
1141 | void | |
1142 | Add_lib_group_symbols::run(Workqueue*) | |
1143 | { | |
1144 | this->lib_->add_symbols(this->symtab_, this->layout_, this->input_objects_); | |
09ec0418 CC |
1145 | |
1146 | // FIXME: Record incremental link info for --start_lib/--end_lib. | |
b0193076 RÁE |
1147 | } |
1148 | ||
1149 | Add_lib_group_symbols::~Add_lib_group_symbols() | |
1150 | { | |
1151 | if (this->this_blocker_ != NULL) | |
1152 | delete this->this_blocker_; | |
1153 | // next_blocker_ is deleted by the task associated with the next | |
1154 | // input file. | |
1155 | } | |
1156 | ||
61ba1cf9 | 1157 | } // End namespace gold. |