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bae7f79e ILT |
1 | // readsyms.cc -- read input file symbols for gold |
2 | ||
0f7c0701 | 3 | // Copyright 2006, 2007, 2008, 2009 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 | ||
bae7f79e ILT |
23 | #include "gold.h" |
24 | ||
25 | #include <cstring> | |
26 | ||
27 | #include "elfcpp.h" | |
28 | #include "options.h" | |
29 | #include "dirsearch.h" | |
f6ce93d6 | 30 | #include "symtab.h" |
a2fb1b05 | 31 | #include "object.h" |
61ba1cf9 | 32 | #include "archive.h" |
dbe717ef | 33 | #include "script.h" |
61ba1cf9 | 34 | #include "readsyms.h" |
89fc3421 | 35 | #include "plugin.h" |
bae7f79e ILT |
36 | |
37 | namespace gold | |
38 | { | |
39 | ||
ee6d2efe ILT |
40 | // If we fail to open the object, then we won't create an Add_symbols |
41 | // task. However, we still need to unblock the token, or else the | |
42 | // link won't proceed to generate more error messages. We can only | |
17a1d0a9 ILT |
43 | // unblock tokens when the workqueue lock is held, so we need a dummy |
44 | // task to do that. The dummy task has to maintain the right sequence | |
45 | // of blocks, so we need both this_blocker and next_blocker. | |
ee6d2efe ILT |
46 | |
47 | class Unblock_token : public Task | |
48 | { | |
49 | public: | |
50 | Unblock_token(Task_token* this_blocker, Task_token* next_blocker) | |
51 | : this_blocker_(this_blocker), next_blocker_(next_blocker) | |
52 | { } | |
53 | ||
54 | ~Unblock_token() | |
55 | { | |
56 | if (this->this_blocker_ != NULL) | |
57 | delete this->this_blocker_; | |
58 | } | |
59 | ||
17a1d0a9 ILT |
60 | Task_token* |
61 | is_runnable() | |
ee6d2efe ILT |
62 | { |
63 | if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked()) | |
17a1d0a9 ILT |
64 | return this->this_blocker_; |
65 | return NULL; | |
ee6d2efe ILT |
66 | } |
67 | ||
17a1d0a9 ILT |
68 | void |
69 | locks(Task_locker* tl) | |
70 | { tl->add(this, this->next_blocker_); } | |
ee6d2efe ILT |
71 | |
72 | void | |
73 | run(Workqueue*) | |
74 | { } | |
75 | ||
c7912668 ILT |
76 | std::string |
77 | get_name() const | |
78 | { return "Unblock_token"; } | |
79 | ||
ee6d2efe ILT |
80 | private: |
81 | Task_token* this_blocker_; | |
82 | Task_token* next_blocker_; | |
83 | }; | |
84 | ||
bae7f79e ILT |
85 | // Class read_symbols. |
86 | ||
87 | Read_symbols::~Read_symbols() | |
88 | { | |
89 | // The this_blocker_ and next_blocker_ pointers are passed on to the | |
90 | // Add_symbols task. | |
91 | } | |
92 | ||
15f8229b ILT |
93 | // If appropriate, issue a warning about skipping an incompatible |
94 | // file. | |
95 | ||
96 | void | |
97 | Read_symbols::incompatible_warning(const Input_argument* input_argument, | |
98 | const Input_file* input_file) | |
99 | { | |
100 | if (parameters->options().warn_search_mismatch()) | |
101 | gold_warning("skipping incompatible %s while searching for %s", | |
102 | input_file->filename().c_str(), | |
103 | input_argument->file().name()); | |
104 | } | |
105 | ||
106 | // Requeue a Read_symbols task to search for the next object with the | |
107 | // same name. | |
108 | ||
109 | void | |
110 | Read_symbols::requeue(Workqueue* workqueue, Input_objects* input_objects, | |
111 | Symbol_table* symtab, Layout* layout, Dirsearch* dirpath, | |
112 | int dirindex, Mapfile* mapfile, | |
113 | const Input_argument* input_argument, | |
114 | Input_group* input_group, Task_token* next_blocker) | |
115 | { | |
116 | // Bump the directory search index. | |
117 | ++dirindex; | |
118 | ||
119 | // We don't need to worry about this_blocker, since we already | |
120 | // reached it. However, we are removing the blocker on next_blocker | |
121 | // because the calling task is completing. So we need to add a new | |
122 | // blocker. Since next_blocker may be shared by several tasks, we | |
123 | // need to increment the count with the workqueue lock held. | |
124 | workqueue->add_blocker(next_blocker); | |
125 | ||
126 | workqueue->queue(new Read_symbols(input_objects, symtab, layout, dirpath, | |
127 | dirindex, mapfile, input_argument, | |
128 | input_group, NULL, next_blocker)); | |
129 | } | |
130 | ||
ead1e424 ILT |
131 | // Return whether a Read_symbols task is runnable. We can read an |
132 | // ordinary input file immediately. For an archive specified using | |
133 | // -l, we have to wait until the search path is complete. | |
bae7f79e | 134 | |
17a1d0a9 ILT |
135 | Task_token* |
136 | Read_symbols::is_runnable() | |
bae7f79e | 137 | { |
dbe717ef | 138 | if (this->input_argument_->is_file() |
51dee2fe | 139 | && this->input_argument_->file().may_need_search() |
17a1d0a9 ILT |
140 | && this->dirpath_->token()->is_blocked()) |
141 | return this->dirpath_->token(); | |
bae7f79e | 142 | |
17a1d0a9 | 143 | return NULL; |
bae7f79e ILT |
144 | } |
145 | ||
146 | // Return a Task_locker for a Read_symbols task. We don't need any | |
147 | // locks here. | |
148 | ||
17a1d0a9 ILT |
149 | void |
150 | Read_symbols::locks(Task_locker*) | |
bae7f79e | 151 | { |
bae7f79e ILT |
152 | } |
153 | ||
ee6d2efe | 154 | // Run a Read_symbols task. |
bae7f79e ILT |
155 | |
156 | void | |
157 | Read_symbols::run(Workqueue* workqueue) | |
ee6d2efe ILT |
158 | { |
159 | // If we didn't queue a new task, then we need to explicitly unblock | |
160 | // the token. | |
161 | if (!this->do_read_symbols(workqueue)) | |
da769d56 ILT |
162 | workqueue->queue_soon(new Unblock_token(this->this_blocker_, |
163 | this->next_blocker_)); | |
ee6d2efe ILT |
164 | } |
165 | ||
166 | // Open the file and read the symbols. Return true if a new task was | |
167 | // queued, false if that could not happen due to some error. | |
168 | ||
169 | bool | |
170 | Read_symbols::do_read_symbols(Workqueue* workqueue) | |
bae7f79e | 171 | { |
dbe717ef | 172 | if (this->input_argument_->is_group()) |
ead1e424 | 173 | { |
a3ad94ed | 174 | gold_assert(this->input_group_ == NULL); |
ead1e424 | 175 | this->do_group(workqueue); |
ee6d2efe | 176 | return true; |
ead1e424 ILT |
177 | } |
178 | ||
5a6f7e2d | 179 | Input_file* input_file = new Input_file(&this->input_argument_->file()); |
15f8229b | 180 | if (!input_file->open(*this->dirpath_, this, &this->dirindex_)) |
ee6d2efe | 181 | return false; |
bae7f79e ILT |
182 | |
183 | // Read enough of the file to pick up the entire ELF header. | |
184 | ||
82dcae9d | 185 | off_t filesize = input_file->file().filesize(); |
bae3688d | 186 | |
82dcae9d ILT |
187 | if (filesize == 0) |
188 | { | |
75f2446e ILT |
189 | gold_error(_("%s: file is empty"), |
190 | input_file->file().filename().c_str()); | |
ee6d2efe | 191 | return false; |
82dcae9d ILT |
192 | } |
193 | ||
82dcae9d ILT |
194 | int read_size = elfcpp::Elf_sizes<64>::ehdr_size; |
195 | if (filesize < read_size) | |
196 | read_size = filesize; | |
197 | ||
7ef73768 ILT |
198 | const unsigned char* ehdr = input_file->file().get_view(0, 0, read_size, |
199 | true, false); | |
82dcae9d | 200 | |
89fc3421 CC |
201 | if (read_size >= Archive::sarmag) |
202 | { | |
203 | bool is_thin_archive | |
204 | = memcmp(ehdr, Archive::armagt, Archive::sarmag) == 0; | |
205 | if (is_thin_archive | |
206 | || memcmp(ehdr, Archive::armag, Archive::sarmag) == 0) | |
207 | { | |
208 | // This is an archive. | |
209 | Archive* arch = new Archive(this->input_argument_->file().name(), | |
210 | input_file, is_thin_archive, | |
211 | this->dirpath_, this); | |
15f8229b | 212 | arch->setup(); |
89fc3421 CC |
213 | |
214 | // Unlock the archive so it can be used in the next task. | |
215 | arch->unlock(this); | |
216 | ||
217 | workqueue->queue_next(new Add_archive_symbols(this->symtab_, | |
218 | this->layout_, | |
219 | this->input_objects_, | |
15f8229b ILT |
220 | this->dirpath_, |
221 | this->dirindex_, | |
89fc3421 | 222 | this->mapfile_, |
15f8229b | 223 | this->input_argument_, |
89fc3421 CC |
224 | arch, |
225 | this->input_group_, | |
226 | this->this_blocker_, | |
227 | this->next_blocker_)); | |
228 | return true; | |
229 | } | |
230 | } | |
231 | ||
232 | if (parameters->options().has_plugins()) | |
233 | { | |
234 | Pluginobj* obj = parameters->options().plugins()->claim_file(input_file, | |
235 | 0, filesize); | |
236 | if (obj != NULL) | |
237 | { | |
238 | // The input file was claimed by a plugin, and its symbols | |
239 | // have been provided by the plugin. | |
0f7c0701 CC |
240 | |
241 | // We are done with the file at this point, so unlock it. | |
242 | obj->unlock(this); | |
243 | ||
f488e4b0 CC |
244 | workqueue->queue_next(new Add_symbols(this->input_objects_, |
245 | this->symtab_, | |
246 | this->layout_, | |
15f8229b ILT |
247 | this->dirpath_, |
248 | this->dirindex_, | |
249 | this->mapfile_, | |
250 | this->input_argument_, | |
251 | this->input_group_, | |
252 | obj, | |
253 | NULL, | |
f488e4b0 CC |
254 | this->this_blocker_, |
255 | this->next_blocker_)); | |
89fc3421 CC |
256 | return true; |
257 | } | |
258 | } | |
259 | ||
82dcae9d | 260 | if (read_size >= 4) |
bae7f79e ILT |
261 | { |
262 | static unsigned char elfmagic[4] = | |
263 | { | |
264 | elfcpp::ELFMAG0, elfcpp::ELFMAG1, | |
265 | elfcpp::ELFMAG2, elfcpp::ELFMAG3 | |
266 | }; | |
7ef73768 | 267 | if (memcmp(ehdr, elfmagic, 4) == 0) |
bae7f79e ILT |
268 | { |
269 | // This is an ELF object. | |
a2fb1b05 | 270 | |
15f8229b | 271 | bool unconfigured; |
dbe717ef | 272 | Object* obj = make_elf_object(input_file->filename(), |
15f8229b ILT |
273 | input_file, 0, ehdr, read_size, |
274 | &unconfigured); | |
75f2446e | 275 | if (obj == NULL) |
15f8229b ILT |
276 | { |
277 | if (unconfigured && input_file->will_search_for()) | |
278 | { | |
279 | Read_symbols::incompatible_warning(this->input_argument_, | |
280 | input_file); | |
281 | input_file->file().release(); | |
282 | input_file->file().unlock(this); | |
283 | delete input_file; | |
284 | ++this->dirindex_; | |
285 | return this->do_read_symbols(workqueue); | |
286 | } | |
287 | return false; | |
288 | } | |
dbe717ef | 289 | |
12e14209 ILT |
290 | Read_symbols_data* sd = new Read_symbols_data; |
291 | obj->read_symbols(sd); | |
17a1d0a9 ILT |
292 | |
293 | // Opening the file locked it, so now we need to unlock it. | |
294 | // We need to unlock it before queuing the Add_symbols task, | |
295 | // because the workqueue doesn't know about our lock on the | |
296 | // file. If we queue the Add_symbols task first, it will be | |
297 | // stuck on the end of the file lock, but since the | |
298 | // workqueue doesn't know about that lock, it will never | |
299 | // release the Add_symbols task. | |
300 | ||
301 | input_file->file().unlock(this); | |
302 | ||
da769d56 ILT |
303 | // We use queue_next because everything is cached for this |
304 | // task to run right away if possible. | |
305 | ||
306 | workqueue->queue_next(new Add_symbols(this->input_objects_, | |
307 | this->symtab_, this->layout_, | |
15f8229b ILT |
308 | this->dirpath_, |
309 | this->dirindex_, | |
310 | this->mapfile_, | |
311 | this->input_argument_, | |
312 | this->input_group_, | |
313 | obj, | |
314 | sd, | |
da769d56 ILT |
315 | this->this_blocker_, |
316 | this->next_blocker_)); | |
bae7f79e | 317 | |
ee6d2efe | 318 | return true; |
bae7f79e ILT |
319 | } |
320 | } | |
321 | ||
da769d56 ILT |
322 | // Queue up a task to try to parse this file as a script. We use a |
323 | // separate task so that the script will be read in order with other | |
324 | // objects named on the command line. Also so that we don't try to | |
325 | // read multiple scripts simultaneously, which could lead to | |
326 | // unpredictable changes to the General_options structure. | |
327 | ||
f1ed28fb | 328 | workqueue->queue_soon(new Read_script(this->symtab_, |
da769d56 ILT |
329 | this->layout_, |
330 | this->dirpath_, | |
15f8229b | 331 | this->dirindex_, |
da769d56 | 332 | this->input_objects_, |
7d9e3d98 | 333 | this->mapfile_, |
da769d56 ILT |
334 | this->input_group_, |
335 | this->input_argument_, | |
336 | input_file, | |
337 | this->this_blocker_, | |
338 | this->next_blocker_)); | |
339 | return true; | |
bae7f79e ILT |
340 | } |
341 | ||
ead1e424 ILT |
342 | // Handle a group. We need to walk through the arguments over and |
343 | // over until we don't see any new undefined symbols. We do this by | |
344 | // setting off Read_symbols Tasks as usual, but recording the archive | |
345 | // entries instead of deleting them. We also start a Finish_group | |
346 | // Task which runs after we've read all the symbols. In that task we | |
347 | // process the archives in a loop until we are done. | |
348 | ||
349 | void | |
350 | Read_symbols::do_group(Workqueue* workqueue) | |
351 | { | |
352 | Input_group* input_group = new Input_group(); | |
353 | ||
dbe717ef | 354 | const Input_file_group* group = this->input_argument_->group(); |
ead1e424 | 355 | Task_token* this_blocker = this->this_blocker_; |
17a1d0a9 | 356 | |
ead1e424 ILT |
357 | for (Input_file_group::const_iterator p = group->begin(); |
358 | p != group->end(); | |
359 | ++p) | |
360 | { | |
dbe717ef | 361 | const Input_argument* arg = &*p; |
a3ad94ed | 362 | gold_assert(arg->is_file()); |
ead1e424 | 363 | |
17a1d0a9 | 364 | Task_token* next_blocker = new Task_token(true); |
ead1e424 | 365 | next_blocker->add_blocker(); |
f1ed28fb | 366 | workqueue->queue_soon(new Read_symbols(this->input_objects_, |
da769d56 | 367 | this->symtab_, this->layout_, |
15f8229b ILT |
368 | this->dirpath_, this->dirindex_, |
369 | this->mapfile_, arg, input_group, | |
da769d56 | 370 | this_blocker, next_blocker)); |
ead1e424 ILT |
371 | this_blocker = next_blocker; |
372 | } | |
373 | ||
374 | const int saw_undefined = this->symtab_->saw_undefined(); | |
da769d56 ILT |
375 | workqueue->queue_soon(new Finish_group(this->input_objects_, |
376 | this->symtab_, | |
377 | this->layout_, | |
7d9e3d98 | 378 | this->mapfile_, |
da769d56 ILT |
379 | input_group, |
380 | saw_undefined, | |
381 | this_blocker, | |
382 | this->next_blocker_)); | |
ead1e424 ILT |
383 | } |
384 | ||
c7912668 ILT |
385 | // Return a debugging name for a Read_symbols task. |
386 | ||
387 | std::string | |
388 | Read_symbols::get_name() const | |
389 | { | |
390 | if (!this->input_argument_->is_group()) | |
391 | { | |
392 | std::string ret("Read_symbols "); | |
393 | if (this->input_argument_->file().is_lib()) | |
394 | ret += "-l"; | |
395 | ret += this->input_argument_->file().name(); | |
396 | return ret; | |
397 | } | |
398 | ||
399 | std::string ret("Read_symbols group ("); | |
400 | bool add_space = false; | |
401 | const Input_file_group* group = this->input_argument_->group(); | |
402 | for (Input_file_group::const_iterator p = group->begin(); | |
403 | p != group->end(); | |
404 | ++p) | |
405 | { | |
406 | if (add_space) | |
407 | ret += ' '; | |
408 | ret += p->file().name(); | |
409 | add_space = true; | |
410 | } | |
411 | return ret + ')'; | |
412 | } | |
413 | ||
bae7f79e ILT |
414 | // Class Add_symbols. |
415 | ||
416 | Add_symbols::~Add_symbols() | |
417 | { | |
418 | if (this->this_blocker_ != NULL) | |
419 | delete this->this_blocker_; | |
420 | // next_blocker_ is deleted by the task associated with the next | |
421 | // input file. | |
422 | } | |
423 | ||
a2fb1b05 ILT |
424 | // We are blocked by this_blocker_. We block next_blocker_. We also |
425 | // lock the file. | |
bae7f79e | 426 | |
17a1d0a9 ILT |
427 | Task_token* |
428 | Add_symbols::is_runnable() | |
bae7f79e ILT |
429 | { |
430 | if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked()) | |
17a1d0a9 | 431 | return this->this_blocker_; |
a2fb1b05 | 432 | if (this->object_->is_locked()) |
17a1d0a9 ILT |
433 | return this->object_->token(); |
434 | return NULL; | |
bae7f79e ILT |
435 | } |
436 | ||
17a1d0a9 ILT |
437 | void |
438 | Add_symbols::locks(Task_locker* tl) | |
bae7f79e | 439 | { |
17a1d0a9 ILT |
440 | tl->add(this, this->next_blocker_); |
441 | tl->add(this, this->object_->token()); | |
bae7f79e ILT |
442 | } |
443 | ||
ead1e424 ILT |
444 | // Add the symbols in the object to the symbol table. |
445 | ||
bae7f79e | 446 | void |
15f8229b | 447 | Add_symbols::run(Workqueue* workqueue) |
bae7f79e | 448 | { |
f488e4b0 CC |
449 | Pluginobj* pluginobj = this->object_->pluginobj(); |
450 | if (pluginobj != NULL) | |
451 | { | |
452 | this->object_->add_symbols(this->symtab_, this->sd_, this->layout_); | |
453 | return; | |
454 | } | |
455 | ||
15f8229b ILT |
456 | // If this file has an incompatible format, try for another file |
457 | // with the same name. | |
458 | if (this->object_->searched_for() | |
459 | && !parameters->is_compatible_target(this->object_->target())) | |
008db82e | 460 | { |
15f8229b ILT |
461 | Read_symbols::incompatible_warning(this->input_argument_, |
462 | this->object_->input_file()); | |
463 | Read_symbols::requeue(workqueue, this->input_objects_, this->symtab_, | |
464 | this->layout_, this->dirpath_, this->dirindex_, | |
465 | this->mapfile_, this->input_argument_, | |
466 | this->input_group_, this->next_blocker_); | |
467 | this->object_->release(); | |
468 | delete this->object_; | |
469 | } | |
470 | else if (!this->input_objects_->add_object(this->object_)) | |
471 | { | |
472 | this->object_->release(); | |
008db82e ILT |
473 | delete this->object_; |
474 | } | |
475 | else | |
476 | { | |
7e1edb90 | 477 | this->object_->layout(this->symtab_, this->layout_, this->sd_); |
f488e4b0 | 478 | this->object_->add_symbols(this->symtab_, this->sd_, this->layout_); |
17a1d0a9 | 479 | this->object_->release(); |
008db82e | 480 | } |
12e14209 ILT |
481 | delete this->sd_; |
482 | this->sd_ = NULL; | |
bae7f79e ILT |
483 | } |
484 | ||
ead1e424 ILT |
485 | // Class Finish_group. |
486 | ||
487 | Finish_group::~Finish_group() | |
488 | { | |
489 | if (this->this_blocker_ != NULL) | |
490 | delete this->this_blocker_; | |
491 | // next_blocker_ is deleted by the task associated with the next | |
492 | // input file following the group. | |
493 | } | |
494 | ||
495 | // We need to wait for THIS_BLOCKER_ and unblock NEXT_BLOCKER_. | |
496 | ||
17a1d0a9 ILT |
497 | Task_token* |
498 | Finish_group::is_runnable() | |
ead1e424 ILT |
499 | { |
500 | if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked()) | |
17a1d0a9 ILT |
501 | return this->this_blocker_; |
502 | return NULL; | |
ead1e424 ILT |
503 | } |
504 | ||
17a1d0a9 ILT |
505 | void |
506 | Finish_group::locks(Task_locker* tl) | |
ead1e424 | 507 | { |
17a1d0a9 | 508 | tl->add(this, this->next_blocker_); |
ead1e424 ILT |
509 | } |
510 | ||
511 | // Loop over the archives until there are no new undefined symbols. | |
512 | ||
513 | void | |
514 | Finish_group::run(Workqueue*) | |
515 | { | |
516 | int saw_undefined = this->saw_undefined_; | |
517 | while (saw_undefined != this->symtab_->saw_undefined()) | |
518 | { | |
519 | saw_undefined = this->symtab_->saw_undefined(); | |
520 | ||
521 | for (Input_group::const_iterator p = this->input_group_->begin(); | |
522 | p != this->input_group_->end(); | |
523 | ++p) | |
524 | { | |
17a1d0a9 | 525 | Task_lock_obj<Archive> tl(this, *p); |
ead1e424 | 526 | |
7e1edb90 | 527 | (*p)->add_symbols(this->symtab_, this->layout_, |
7d9e3d98 | 528 | this->input_objects_, this->mapfile_); |
ead1e424 ILT |
529 | } |
530 | } | |
531 | ||
532 | // Delete all the archives now that we no longer need them. | |
533 | for (Input_group::const_iterator p = this->input_group_->begin(); | |
534 | p != this->input_group_->end(); | |
535 | ++p) | |
536 | delete *p; | |
537 | delete this->input_group_; | |
538 | } | |
539 | ||
da769d56 ILT |
540 | // Class Read_script |
541 | ||
542 | Read_script::~Read_script() | |
543 | { | |
544 | if (this->this_blocker_ != NULL) | |
545 | delete this->this_blocker_; | |
546 | // next_blocker_ is deleted by the task associated with the next | |
547 | // input file. | |
548 | } | |
549 | ||
550 | // We are blocked by this_blocker_. | |
551 | ||
552 | Task_token* | |
553 | Read_script::is_runnable() | |
554 | { | |
555 | if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked()) | |
556 | return this->this_blocker_; | |
557 | return NULL; | |
558 | } | |
559 | ||
560 | // We don't unlock next_blocker_ here. If the script names any input | |
561 | // files, then the last file will be responsible for unlocking it. | |
562 | ||
563 | void | |
564 | Read_script::locks(Task_locker*) | |
565 | { | |
566 | } | |
567 | ||
568 | // Read the script, if it is a script. | |
569 | ||
570 | void | |
571 | Read_script::run(Workqueue* workqueue) | |
572 | { | |
573 | bool used_next_blocker; | |
f1ed28fb | 574 | if (!read_input_script(workqueue, this->symtab_, this->layout_, |
15f8229b | 575 | this->dirpath_, this->dirindex_, this->input_objects_, |
7d9e3d98 ILT |
576 | this->mapfile_, this->input_group_, |
577 | this->input_argument_, this->input_file_, | |
578 | this->next_blocker_, &used_next_blocker)) | |
da769d56 ILT |
579 | { |
580 | // Here we have to handle any other input file types we need. | |
581 | gold_error(_("%s: not an object or archive"), | |
582 | this->input_file_->file().filename().c_str()); | |
583 | } | |
584 | ||
585 | if (!used_next_blocker) | |
586 | { | |
587 | // Queue up a task to unlock next_blocker. We can't just unlock | |
588 | // it here, as we don't hold the workqueue lock. | |
589 | workqueue->queue_soon(new Unblock_token(NULL, this->next_blocker_)); | |
590 | } | |
591 | } | |
592 | ||
593 | // Return a debugging name for a Read_script task. | |
594 | ||
595 | std::string | |
596 | Read_script::get_name() const | |
597 | { | |
598 | std::string ret("Read_script "); | |
599 | if (this->input_argument_->file().is_lib()) | |
600 | ret += "-l"; | |
601 | ret += this->input_argument_->file().name(); | |
602 | return ret; | |
603 | } | |
604 | ||
bae7f79e | 605 | } // End namespace gold. |