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6d03d481 | 1 | // plugin.cc -- plugin manager for gold -*- C++ -*- |
89fc3421 | 2 | |
0f3b89d8 | 3 | // Copyright 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
89fc3421 CC |
4 | // Written by Cary Coutant <ccoutant@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 | ||
1c7814ed ILT |
23 | #include "gold.h" |
24 | ||
89fc3421 CC |
25 | #include <cstdio> |
26 | #include <cstdarg> | |
27 | #include <cstring> | |
28 | #include <string> | |
29 | #include <vector> | |
bc06c745 ILT |
30 | |
31 | #ifdef ENABLE_PLUGINS | |
89fc3421 | 32 | #include <dlfcn.h> |
bc06c745 | 33 | #endif |
89fc3421 | 34 | |
89fc3421 CC |
35 | #include "parameters.h" |
36 | #include "errors.h" | |
37 | #include "fileread.h" | |
38 | #include "layout.h" | |
39 | #include "options.h" | |
40 | #include "plugin.h" | |
41 | #include "target.h" | |
42 | #include "readsyms.h" | |
43 | #include "symtab.h" | |
44 | #include "elfcpp.h" | |
45 | ||
46 | namespace gold | |
47 | { | |
48 | ||
49 | #ifdef ENABLE_PLUGINS | |
50 | ||
51 | // The linker's exported interfaces. | |
52 | ||
53 | extern "C" | |
54 | { | |
55 | ||
56 | static enum ld_plugin_status | |
57 | register_claim_file(ld_plugin_claim_file_handler handler); | |
58 | ||
59 | static enum ld_plugin_status | |
60 | register_all_symbols_read(ld_plugin_all_symbols_read_handler handler); | |
61 | ||
62 | static enum ld_plugin_status | |
63 | register_cleanup(ld_plugin_cleanup_handler handler); | |
64 | ||
65 | static enum ld_plugin_status | |
66 | add_symbols(void *handle, int nsyms, const struct ld_plugin_symbol *syms); | |
67 | ||
0f7c0701 CC |
68 | static enum ld_plugin_status |
69 | get_input_file(const void *handle, struct ld_plugin_input_file *file); | |
70 | ||
9c793f14 RÁE |
71 | static enum ld_plugin_status |
72 | get_view(const void *handle, const void **viewp); | |
73 | ||
0f7c0701 CC |
74 | static enum ld_plugin_status |
75 | release_input_file(const void *handle); | |
76 | ||
89fc3421 CC |
77 | static enum ld_plugin_status |
78 | get_symbols(const void *handle, int nsyms, struct ld_plugin_symbol *syms); | |
79 | ||
235061c2 CC |
80 | static enum ld_plugin_status |
81 | get_symbols_v2(const void *handle, int nsyms, struct ld_plugin_symbol *syms); | |
82 | ||
89fc3421 | 83 | static enum ld_plugin_status |
6508b958 | 84 | add_input_file(const char *pathname); |
89fc3421 | 85 | |
e99daf92 | 86 | static enum ld_plugin_status |
6508b958 | 87 | add_input_library(const char *pathname); |
e99daf92 | 88 | |
42218b9f RÁE |
89 | static enum ld_plugin_status |
90 | set_extra_library_path(const char *path); | |
91 | ||
89fc3421 | 92 | static enum ld_plugin_status |
6c52134c | 93 | message(int level, const char *format, ...); |
89fc3421 | 94 | |
e9552f7e ST |
95 | static enum ld_plugin_status |
96 | get_input_section_count(const void* handle, unsigned int* count); | |
97 | ||
98 | static enum ld_plugin_status | |
99 | get_input_section_type(const struct ld_plugin_section section, | |
100 | unsigned int* type); | |
101 | ||
102 | static enum ld_plugin_status | |
103 | get_input_section_name(const struct ld_plugin_section section, | |
104 | char** section_name_ptr); | |
105 | ||
106 | static enum ld_plugin_status | |
107 | get_input_section_contents(const struct ld_plugin_section section, | |
108 | const unsigned char** section_contents, | |
109 | size_t* len); | |
110 | ||
111 | static enum ld_plugin_status | |
112 | update_section_order(const struct ld_plugin_section *section_list, | |
113 | unsigned int num_sections); | |
114 | ||
115 | static enum ld_plugin_status | |
116 | allow_section_ordering(); | |
117 | ||
89fc3421 CC |
118 | }; |
119 | ||
120 | #endif // ENABLE_PLUGINS | |
121 | ||
122 | static Pluginobj* make_sized_plugin_object(Input_file* input_file, | |
0f7c0701 | 123 | off_t offset, off_t filesize); |
89fc3421 CC |
124 | |
125 | // Plugin methods. | |
126 | ||
127 | // Load one plugin library. | |
128 | ||
129 | void | |
130 | Plugin::load() | |
131 | { | |
132 | #ifdef ENABLE_PLUGINS | |
89fc3421 CC |
133 | // Load the plugin library. |
134 | // FIXME: Look for the library in standard locations. | |
4674ecfc | 135 | this->handle_ = dlopen(this->filename_.c_str(), RTLD_NOW); |
89fc3421 CC |
136 | if (this->handle_ == NULL) |
137 | { | |
4802450a RÁE |
138 | gold_error(_("%s: could not load plugin library: %s"), |
139 | this->filename_.c_str(), dlerror()); | |
89fc3421 CC |
140 | return; |
141 | } | |
142 | ||
143 | // Find the plugin's onload entry point. | |
b59befec ILT |
144 | void* ptr = dlsym(this->handle_, "onload"); |
145 | if (ptr == NULL) | |
89fc3421 | 146 | { |
4674ecfc CC |
147 | gold_error(_("%s: could not find onload entry point"), |
148 | this->filename_.c_str()); | |
89fc3421 CC |
149 | return; |
150 | } | |
b59befec ILT |
151 | ld_plugin_onload onload; |
152 | gold_assert(sizeof(onload) == sizeof(ptr)); | |
153 | memcpy(&onload, &ptr, sizeof(ptr)); | |
89fc3421 CC |
154 | |
155 | // Get the linker's version number. | |
156 | const char* ver = get_version_string(); | |
157 | int major = 0; | |
158 | int minor = 0; | |
159 | sscanf(ver, "%d.%d", &major, &minor); | |
160 | ||
161 | // Allocate and populate a transfer vector. | |
235061c2 | 162 | const int tv_fixed_size = 24; |
e9552f7e | 163 | |
4674ecfc | 164 | int tv_size = this->args_.size() + tv_fixed_size; |
ca09d69a | 165 | ld_plugin_tv* tv = new ld_plugin_tv[tv_size]; |
89fc3421 | 166 | |
abc8dcba CC |
167 | // Put LDPT_MESSAGE at the front of the list so the plugin can use it |
168 | // while processing subsequent entries. | |
89fc3421 | 169 | int i = 0; |
abc8dcba CC |
170 | tv[i].tv_tag = LDPT_MESSAGE; |
171 | tv[i].tv_u.tv_message = message; | |
172 | ||
173 | ++i; | |
89fc3421 CC |
174 | tv[i].tv_tag = LDPT_API_VERSION; |
175 | tv[i].tv_u.tv_val = LD_PLUGIN_API_VERSION; | |
176 | ||
177 | ++i; | |
178 | tv[i].tv_tag = LDPT_GOLD_VERSION; | |
179 | tv[i].tv_u.tv_val = major * 100 + minor; | |
180 | ||
181 | ++i; | |
182 | tv[i].tv_tag = LDPT_LINKER_OUTPUT; | |
183 | if (parameters->options().relocatable()) | |
184 | tv[i].tv_u.tv_val = LDPO_REL; | |
185 | else if (parameters->options().shared()) | |
186 | tv[i].tv_u.tv_val = LDPO_DYN; | |
187 | else | |
188 | tv[i].tv_u.tv_val = LDPO_EXEC; | |
189 | ||
3537c84b RÁE |
190 | ++i; |
191 | tv[i].tv_tag = LDPT_OUTPUT_NAME; | |
192 | tv[i].tv_u.tv_string = parameters->options().output(); | |
193 | ||
4674ecfc | 194 | for (unsigned int j = 0; j < this->args_.size(); ++j) |
89fc3421 CC |
195 | { |
196 | ++i; | |
197 | tv[i].tv_tag = LDPT_OPTION; | |
4674ecfc | 198 | tv[i].tv_u.tv_string = this->args_[j].c_str(); |
89fc3421 CC |
199 | } |
200 | ||
201 | ++i; | |
202 | tv[i].tv_tag = LDPT_REGISTER_CLAIM_FILE_HOOK; | |
203 | tv[i].tv_u.tv_register_claim_file = register_claim_file; | |
204 | ||
205 | ++i; | |
206 | tv[i].tv_tag = LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK; | |
207 | tv[i].tv_u.tv_register_all_symbols_read = register_all_symbols_read; | |
208 | ||
209 | ++i; | |
210 | tv[i].tv_tag = LDPT_REGISTER_CLEANUP_HOOK; | |
211 | tv[i].tv_u.tv_register_cleanup = register_cleanup; | |
212 | ||
213 | ++i; | |
214 | tv[i].tv_tag = LDPT_ADD_SYMBOLS; | |
215 | tv[i].tv_u.tv_add_symbols = add_symbols; | |
216 | ||
0f7c0701 CC |
217 | ++i; |
218 | tv[i].tv_tag = LDPT_GET_INPUT_FILE; | |
219 | tv[i].tv_u.tv_get_input_file = get_input_file; | |
220 | ||
9c793f14 RÁE |
221 | ++i; |
222 | tv[i].tv_tag = LDPT_GET_VIEW; | |
223 | tv[i].tv_u.tv_get_view = get_view; | |
224 | ||
0f7c0701 CC |
225 | ++i; |
226 | tv[i].tv_tag = LDPT_RELEASE_INPUT_FILE; | |
227 | tv[i].tv_u.tv_release_input_file = release_input_file; | |
228 | ||
89fc3421 CC |
229 | ++i; |
230 | tv[i].tv_tag = LDPT_GET_SYMBOLS; | |
231 | tv[i].tv_u.tv_get_symbols = get_symbols; | |
232 | ||
235061c2 CC |
233 | ++i; |
234 | tv[i].tv_tag = LDPT_GET_SYMBOLS_V2; | |
235 | tv[i].tv_u.tv_get_symbols = get_symbols_v2; | |
236 | ||
89fc3421 CC |
237 | ++i; |
238 | tv[i].tv_tag = LDPT_ADD_INPUT_FILE; | |
239 | tv[i].tv_u.tv_add_input_file = add_input_file; | |
240 | ||
e99daf92 ILT |
241 | ++i; |
242 | tv[i].tv_tag = LDPT_ADD_INPUT_LIBRARY; | |
243 | tv[i].tv_u.tv_add_input_library = add_input_library; | |
244 | ||
42218b9f RÁE |
245 | ++i; |
246 | tv[i].tv_tag = LDPT_SET_EXTRA_LIBRARY_PATH; | |
247 | tv[i].tv_u.tv_set_extra_library_path = set_extra_library_path; | |
248 | ||
e9552f7e ST |
249 | ++i; |
250 | tv[i].tv_tag = LDPT_GET_INPUT_SECTION_COUNT; | |
251 | tv[i].tv_u.tv_get_input_section_count = get_input_section_count; | |
252 | ||
253 | ++i; | |
254 | tv[i].tv_tag = LDPT_GET_INPUT_SECTION_TYPE; | |
255 | tv[i].tv_u.tv_get_input_section_type = get_input_section_type; | |
256 | ||
257 | ++i; | |
258 | tv[i].tv_tag = LDPT_GET_INPUT_SECTION_NAME; | |
259 | tv[i].tv_u.tv_get_input_section_name = get_input_section_name; | |
260 | ||
261 | ++i; | |
262 | tv[i].tv_tag = LDPT_GET_INPUT_SECTION_CONTENTS; | |
263 | tv[i].tv_u.tv_get_input_section_contents = get_input_section_contents; | |
264 | ||
265 | ++i; | |
266 | tv[i].tv_tag = LDPT_UPDATE_SECTION_ORDER; | |
267 | tv[i].tv_u.tv_update_section_order = update_section_order; | |
268 | ||
269 | ++i; | |
270 | tv[i].tv_tag = LDPT_ALLOW_SECTION_ORDERING; | |
271 | tv[i].tv_u.tv_allow_section_ordering = allow_section_ordering; | |
272 | ||
89fc3421 CC |
273 | ++i; |
274 | tv[i].tv_tag = LDPT_NULL; | |
275 | tv[i].tv_u.tv_val = 0; | |
276 | ||
277 | gold_assert(i == tv_size - 1); | |
278 | ||
279 | // Call the onload entry point. | |
280 | (*onload)(tv); | |
281 | ||
6c52134c | 282 | delete[] tv; |
89fc3421 CC |
283 | #endif // ENABLE_PLUGINS |
284 | } | |
285 | ||
286 | // Call the plugin claim-file handler. | |
287 | ||
288 | inline bool | |
ca09d69a | 289 | Plugin::claim_file(struct ld_plugin_input_file* plugin_input_file) |
89fc3421 CC |
290 | { |
291 | int claimed = 0; | |
292 | ||
293 | if (this->claim_file_handler_ != NULL) | |
294 | { | |
295 | (*this->claim_file_handler_)(plugin_input_file, &claimed); | |
296 | if (claimed) | |
297 | return true; | |
298 | } | |
299 | return false; | |
300 | } | |
301 | ||
302 | // Call the all-symbols-read handler. | |
303 | ||
304 | inline void | |
305 | Plugin::all_symbols_read() | |
306 | { | |
307 | if (this->all_symbols_read_handler_ != NULL) | |
308 | (*this->all_symbols_read_handler_)(); | |
309 | } | |
310 | ||
311 | // Call the cleanup handler. | |
312 | ||
313 | inline void | |
314 | Plugin::cleanup() | |
315 | { | |
40f36857 CC |
316 | if (this->cleanup_handler_ != NULL && !this->cleanup_done_) |
317 | { | |
318 | // Set this flag before calling to prevent a recursive plunge | |
319 | // in the event that a plugin's cleanup handler issues a | |
320 | // fatal error. | |
321 | this->cleanup_done_ = true; | |
322 | (*this->cleanup_handler_)(); | |
323 | } | |
89fc3421 CC |
324 | } |
325 | ||
0f3b89d8 ILT |
326 | // This task is used to rescan archives as needed. |
327 | ||
328 | class Plugin_rescan : public Task | |
329 | { | |
330 | public: | |
331 | Plugin_rescan(Task_token* this_blocker, Task_token* next_blocker) | |
332 | : this_blocker_(this_blocker), next_blocker_(next_blocker) | |
333 | { } | |
334 | ||
335 | ~Plugin_rescan() | |
336 | { | |
337 | delete this->this_blocker_; | |
338 | } | |
339 | ||
340 | Task_token* | |
341 | is_runnable() | |
342 | { | |
343 | if (this->this_blocker_->is_blocked()) | |
344 | return this->this_blocker_; | |
345 | return NULL; | |
346 | } | |
347 | ||
348 | void | |
349 | locks(Task_locker* tl) | |
350 | { tl->add(this, this->next_blocker_); } | |
351 | ||
352 | void | |
353 | run(Workqueue*) | |
354 | { parameters->options().plugins()->rescan(this); } | |
355 | ||
356 | std::string | |
357 | get_name() const | |
358 | { return "Plugin_rescan"; } | |
359 | ||
360 | private: | |
361 | Task_token* this_blocker_; | |
362 | Task_token* next_blocker_; | |
363 | }; | |
364 | ||
89fc3421 CC |
365 | // Plugin_manager methods. |
366 | ||
367 | Plugin_manager::~Plugin_manager() | |
368 | { | |
369 | for (Plugin_list::iterator p = this->plugins_.begin(); | |
370 | p != this->plugins_.end(); | |
371 | ++p) | |
372 | delete *p; | |
373 | this->plugins_.clear(); | |
374 | for (Object_list::iterator obj = this->objects_.begin(); | |
375 | obj != this->objects_.end(); | |
376 | ++obj) | |
377 | delete *obj; | |
378 | this->objects_.clear(); | |
379 | } | |
380 | ||
381 | // Load all plugin libraries. | |
382 | ||
383 | void | |
e9552f7e | 384 | Plugin_manager::load_plugins(Layout* layout) |
89fc3421 | 385 | { |
e9552f7e | 386 | this->layout_ = layout; |
89fc3421 CC |
387 | for (this->current_ = this->plugins_.begin(); |
388 | this->current_ != this->plugins_.end(); | |
389 | ++this->current_) | |
390 | (*this->current_)->load(); | |
391 | } | |
392 | ||
393 | // Call the plugin claim-file handlers in turn to see if any claim the file. | |
394 | ||
395 | Pluginobj* | |
396 | Plugin_manager::claim_file(Input_file* input_file, off_t offset, | |
e9552f7e | 397 | off_t filesize, Object* elf_object) |
89fc3421 CC |
398 | { |
399 | if (this->in_replacement_phase_) | |
400 | return NULL; | |
401 | ||
402 | unsigned int handle = this->objects_.size(); | |
403 | this->input_file_ = input_file; | |
404 | this->plugin_input_file_.name = input_file->filename().c_str(); | |
405 | this->plugin_input_file_.fd = input_file->file().descriptor(); | |
406 | this->plugin_input_file_.offset = offset; | |
407 | this->plugin_input_file_.filesize = filesize; | |
408 | this->plugin_input_file_.handle = reinterpret_cast<void*>(handle); | |
e9552f7e ST |
409 | if (elf_object != NULL) |
410 | this->objects_.push_back(elf_object); | |
411 | this->in_claim_file_handler_ = true; | |
89fc3421 CC |
412 | |
413 | for (this->current_ = this->plugins_.begin(); | |
414 | this->current_ != this->plugins_.end(); | |
415 | ++this->current_) | |
416 | { | |
417 | if ((*this->current_)->claim_file(&this->plugin_input_file_)) | |
418 | { | |
0f3b89d8 | 419 | this->any_claimed_ = true; |
e9552f7e | 420 | this->in_claim_file_handler_ = false; |
0f3b89d8 | 421 | |
e9552f7e ST |
422 | if (this->objects_.size() > handle |
423 | && this->objects_[handle]->pluginobj() != NULL) | |
424 | return this->objects_[handle]->pluginobj(); | |
abc8dcba CC |
425 | |
426 | // If the plugin claimed the file but did not call the | |
427 | // add_symbols callback, we need to create the Pluginobj now. | |
428 | Pluginobj* obj = this->make_plugin_object(handle); | |
429 | return obj; | |
89fc3421 CC |
430 | } |
431 | } | |
432 | ||
e9552f7e | 433 | this->in_claim_file_handler_ = false; |
89fc3421 CC |
434 | return NULL; |
435 | } | |
436 | ||
0f3b89d8 ILT |
437 | // Save an archive. This is used so that a plugin can add a file |
438 | // which refers to a symbol which was not previously referenced. In | |
439 | // that case we want to pretend that the symbol was referenced before, | |
440 | // and pull in the archive object. | |
441 | ||
442 | void | |
443 | Plugin_manager::save_archive(Archive* archive) | |
444 | { | |
445 | if (this->in_replacement_phase_ || !this->any_claimed_) | |
446 | delete archive; | |
447 | else | |
448 | this->rescannable_.push_back(Rescannable(archive)); | |
449 | } | |
450 | ||
451 | // Save an Input_group. This is like save_archive. | |
452 | ||
453 | void | |
454 | Plugin_manager::save_input_group(Input_group* input_group) | |
455 | { | |
456 | if (this->in_replacement_phase_ || !this->any_claimed_) | |
457 | delete input_group; | |
458 | else | |
459 | this->rescannable_.push_back(Rescannable(input_group)); | |
460 | } | |
461 | ||
89fc3421 CC |
462 | // Call the all-symbols-read handlers. |
463 | ||
464 | void | |
0f7c0701 | 465 | Plugin_manager::all_symbols_read(Workqueue* workqueue, Task* task, |
89fc3421 | 466 | Input_objects* input_objects, |
e9552f7e | 467 | Symbol_table* symtab, |
89fc3421 CC |
468 | Dirsearch* dirpath, Mapfile* mapfile, |
469 | Task_token** last_blocker) | |
470 | { | |
471 | this->in_replacement_phase_ = true; | |
472 | this->workqueue_ = workqueue; | |
0f7c0701 | 473 | this->task_ = task; |
89fc3421 CC |
474 | this->input_objects_ = input_objects; |
475 | this->symtab_ = symtab; | |
89fc3421 CC |
476 | this->dirpath_ = dirpath; |
477 | this->mapfile_ = mapfile; | |
478 | this->this_blocker_ = NULL; | |
479 | ||
480 | for (this->current_ = this->plugins_.begin(); | |
481 | this->current_ != this->plugins_.end(); | |
482 | ++this->current_) | |
483 | (*this->current_)->all_symbols_read(); | |
484 | ||
0f3b89d8 ILT |
485 | if (this->any_added_) |
486 | { | |
487 | Task_token* next_blocker = new Task_token(true); | |
488 | next_blocker->add_blocker(); | |
489 | workqueue->queue(new Plugin_rescan(this->this_blocker_, next_blocker)); | |
490 | this->this_blocker_ = next_blocker; | |
491 | } | |
492 | ||
89fc3421 CC |
493 | *last_blocker = this->this_blocker_; |
494 | } | |
495 | ||
0f3b89d8 ILT |
496 | // This is called when we see a new undefined symbol. If we are in |
497 | // the replacement phase, this means that we may need to rescan some | |
498 | // archives we have previously seen. | |
499 | ||
500 | void | |
501 | Plugin_manager::new_undefined_symbol(Symbol* sym) | |
502 | { | |
503 | if (this->in_replacement_phase_) | |
504 | this->undefined_symbols_.push_back(sym); | |
505 | } | |
506 | ||
507 | // Rescan archives as needed. This handles the case where a new | |
508 | // object file added by a plugin has an undefined reference to some | |
509 | // symbol defined in an archive. | |
510 | ||
511 | void | |
512 | Plugin_manager::rescan(Task* task) | |
513 | { | |
514 | size_t rescan_pos = 0; | |
515 | size_t rescan_size = this->rescannable_.size(); | |
516 | while (!this->undefined_symbols_.empty()) | |
517 | { | |
518 | if (rescan_pos >= rescan_size) | |
519 | { | |
520 | this->undefined_symbols_.clear(); | |
521 | return; | |
522 | } | |
523 | ||
524 | Undefined_symbol_list undefs; | |
525 | undefs.reserve(this->undefined_symbols_.size()); | |
526 | this->undefined_symbols_.swap(undefs); | |
527 | ||
528 | size_t min_rescan_pos = rescan_size; | |
529 | ||
530 | for (Undefined_symbol_list::const_iterator p = undefs.begin(); | |
531 | p != undefs.end(); | |
532 | ++p) | |
533 | { | |
534 | if (!(*p)->is_undefined()) | |
535 | continue; | |
536 | ||
537 | this->undefined_symbols_.push_back(*p); | |
538 | ||
539 | // Find the first rescan archive which defines this symbol, | |
540 | // starting at the current rescan position. The rescan position | |
541 | // exists so that given -la -lb -lc we don't look for undefined | |
542 | // symbols in -lb back in -la, but instead get the definition | |
543 | // from -lc. Don't bother to look past the current minimum | |
544 | // rescan position. | |
545 | for (size_t i = rescan_pos; i < min_rescan_pos; ++i) | |
546 | { | |
547 | if (this->rescannable_defines(i, *p)) | |
548 | { | |
549 | min_rescan_pos = i; | |
550 | break; | |
551 | } | |
552 | } | |
553 | } | |
554 | ||
555 | if (min_rescan_pos >= rescan_size) | |
556 | { | |
557 | // We didn't find any rescannable archives which define any | |
558 | // undefined symbols. | |
559 | return; | |
560 | } | |
561 | ||
562 | const Rescannable& r(this->rescannable_[min_rescan_pos]); | |
563 | if (r.is_archive) | |
564 | { | |
565 | Task_lock_obj<Archive> tl(task, r.u.archive); | |
566 | r.u.archive->add_symbols(this->symtab_, this->layout_, | |
567 | this->input_objects_, this->mapfile_); | |
568 | } | |
569 | else | |
570 | { | |
571 | size_t next_saw_undefined = this->symtab_->saw_undefined(); | |
572 | size_t saw_undefined; | |
573 | do | |
574 | { | |
575 | saw_undefined = next_saw_undefined; | |
576 | ||
577 | for (Input_group::const_iterator p = r.u.input_group->begin(); | |
578 | p != r.u.input_group->end(); | |
579 | ++p) | |
580 | { | |
581 | Task_lock_obj<Archive> tl(task, *p); | |
582 | ||
583 | (*p)->add_symbols(this->symtab_, this->layout_, | |
584 | this->input_objects_, this->mapfile_); | |
585 | } | |
586 | ||
587 | next_saw_undefined = this->symtab_->saw_undefined(); | |
588 | } | |
589 | while (saw_undefined != next_saw_undefined); | |
590 | } | |
591 | ||
592 | for (size_t i = rescan_pos; i < min_rescan_pos + 1; ++i) | |
593 | { | |
594 | if (this->rescannable_[i].is_archive) | |
595 | delete this->rescannable_[i].u.archive; | |
596 | else | |
597 | delete this->rescannable_[i].u.input_group; | |
598 | } | |
599 | ||
600 | rescan_pos = min_rescan_pos + 1; | |
601 | } | |
602 | } | |
603 | ||
604 | // Return whether the rescannable at index I defines SYM. | |
605 | ||
606 | bool | |
607 | Plugin_manager::rescannable_defines(size_t i, Symbol* sym) | |
608 | { | |
609 | const Rescannable& r(this->rescannable_[i]); | |
610 | if (r.is_archive) | |
611 | return r.u.archive->defines_symbol(sym); | |
612 | else | |
613 | { | |
614 | for (Input_group::const_iterator p = r.u.input_group->begin(); | |
615 | p != r.u.input_group->end(); | |
616 | ++p) | |
617 | { | |
618 | if ((*p)->defines_symbol(sym)) | |
619 | return true; | |
620 | } | |
621 | return false; | |
622 | } | |
623 | } | |
624 | ||
483620e8 | 625 | // Layout deferred objects. |
89fc3421 CC |
626 | |
627 | void | |
483620e8 | 628 | Plugin_manager::layout_deferred_objects() |
89fc3421 | 629 | { |
5995b570 CC |
630 | Deferred_layout_list::iterator obj; |
631 | ||
632 | for (obj = this->deferred_layout_objects_.begin(); | |
633 | obj != this->deferred_layout_objects_.end(); | |
634 | ++obj) | |
5f9bcf58 CC |
635 | { |
636 | // Lock the object so we can read from it. This is only called | |
637 | // single-threaded from queue_middle_tasks, so it is OK to lock. | |
638 | // Unfortunately we have no way to pass in a Task token. | |
639 | const Task* dummy_task = reinterpret_cast<const Task*>(-1); | |
640 | Task_lock_obj<Object> tl(dummy_task, *obj); | |
641 | (*obj)->layout_deferred_sections(this->layout_); | |
642 | } | |
483620e8 CC |
643 | } |
644 | ||
645 | // Call the cleanup handlers. | |
5995b570 | 646 | |
483620e8 CC |
647 | void |
648 | Plugin_manager::cleanup() | |
649 | { | |
89fc3421 CC |
650 | for (this->current_ = this->plugins_.begin(); |
651 | this->current_ != this->plugins_.end(); | |
652 | ++this->current_) | |
653 | (*this->current_)->cleanup(); | |
654 | } | |
655 | ||
656 | // Make a new Pluginobj object. This is called when the plugin calls | |
657 | // the add_symbols API. | |
658 | ||
659 | Pluginobj* | |
660 | Plugin_manager::make_plugin_object(unsigned int handle) | |
661 | { | |
662 | // Make sure we aren't asked to make an object for the same handle twice. | |
e9552f7e ST |
663 | if (this->objects_.size() != handle |
664 | && this->objects_[handle]->pluginobj() != NULL) | |
89fc3421 CC |
665 | return NULL; |
666 | ||
667 | Pluginobj* obj = make_sized_plugin_object(this->input_file_, | |
0f7c0701 CC |
668 | this->plugin_input_file_.offset, |
669 | this->plugin_input_file_.filesize); | |
e9552f7e ST |
670 | |
671 | ||
672 | // If the elf object for this file was pushed into the objects_ vector, delete | |
673 | // it to make room for the Pluginobj as this file is claimed. | |
674 | if (this->objects_.size() != handle) | |
675 | this->objects_.pop_back(); | |
676 | ||
89fc3421 CC |
677 | this->objects_.push_back(obj); |
678 | return obj; | |
679 | } | |
680 | ||
0f7c0701 CC |
681 | // Get the input file information with an open (possibly re-opened) |
682 | // file descriptor. | |
683 | ||
684 | ld_plugin_status | |
685 | Plugin_manager::get_input_file(unsigned int handle, | |
ca09d69a | 686 | struct ld_plugin_input_file* file) |
0f7c0701 | 687 | { |
e9552f7e | 688 | Pluginobj* obj = this->object(handle)->pluginobj(); |
0f7c0701 CC |
689 | if (obj == NULL) |
690 | return LDPS_BAD_HANDLE; | |
691 | ||
692 | obj->lock(this->task_); | |
693 | file->name = obj->filename().c_str(); | |
694 | file->fd = obj->descriptor(); | |
695 | file->offset = obj->offset(); | |
696 | file->filesize = obj->filesize(); | |
697 | file->handle = reinterpret_cast<void*>(handle); | |
698 | return LDPS_OK; | |
699 | } | |
700 | ||
701 | // Release the input file. | |
702 | ||
703 | ld_plugin_status | |
704 | Plugin_manager::release_input_file(unsigned int handle) | |
705 | { | |
e9552f7e ST |
706 | if (this->object(handle) == NULL) |
707 | return LDPS_BAD_HANDLE; | |
708 | ||
709 | Pluginobj* obj = this->object(handle)->pluginobj(); | |
710 | ||
0f7c0701 CC |
711 | if (obj == NULL) |
712 | return LDPS_BAD_HANDLE; | |
713 | ||
714 | obj->unlock(this->task_); | |
715 | return LDPS_OK; | |
716 | } | |
717 | ||
e9552f7e ST |
718 | // Get the elf object corresponding to the handle. Return NULL if we |
719 | // found a Pluginobj instead. | |
720 | ||
721 | Object* | |
722 | Plugin_manager::get_elf_object(const void* handle) | |
723 | { | |
724 | Object* obj = this->object( | |
725 | static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle))); | |
726 | ||
727 | // The object should not be a Pluginobj. | |
728 | if (obj == NULL | |
729 | || obj->pluginobj() != NULL) | |
730 | return NULL; | |
731 | ||
732 | return obj; | |
733 | } | |
734 | ||
9c793f14 RÁE |
735 | ld_plugin_status |
736 | Plugin_manager::get_view(unsigned int handle, const void **viewp) | |
737 | { | |
738 | off_t offset; | |
739 | size_t filesize; | |
740 | Input_file *input_file; | |
e9552f7e | 741 | if (this->in_claim_file_handler_) |
9c793f14 RÁE |
742 | { |
743 | // We are being called from the claim_file hook. | |
744 | const struct ld_plugin_input_file &f = this->plugin_input_file_; | |
745 | offset = f.offset; | |
746 | filesize = f.filesize; | |
747 | input_file = this->input_file_; | |
748 | } | |
749 | else | |
750 | { | |
751 | // An already claimed file. | |
e9552f7e ST |
752 | if (this->object(handle) == NULL) |
753 | return LDPS_BAD_HANDLE; | |
754 | Pluginobj* obj = this->object(handle)->pluginobj(); | |
9c793f14 RÁE |
755 | if (obj == NULL) |
756 | return LDPS_BAD_HANDLE; | |
757 | offset = obj->offset(); | |
758 | filesize = obj->filesize(); | |
759 | input_file = obj->input_file(); | |
760 | } | |
761 | *viewp = (void*) input_file->file().get_view(offset, 0, filesize, false, | |
762 | false); | |
763 | return LDPS_OK; | |
764 | } | |
765 | ||
42218b9f RÁE |
766 | // Add a new library path. |
767 | ||
768 | ld_plugin_status | |
ca09d69a | 769 | Plugin_manager::set_extra_library_path(const char* path) |
42218b9f RÁE |
770 | { |
771 | this->extra_search_path_ = std::string(path); | |
772 | return LDPS_OK; | |
773 | } | |
774 | ||
89fc3421 CC |
775 | // Add a new input file. |
776 | ||
777 | ld_plugin_status | |
ca09d69a | 778 | Plugin_manager::add_input_file(const char* pathname, bool is_lib) |
89fc3421 | 779 | { |
ae3b5189 CD |
780 | Input_file_argument file(pathname, |
781 | (is_lib | |
782 | ? Input_file_argument::INPUT_FILE_TYPE_LIBRARY | |
783 | : Input_file_argument::INPUT_FILE_TYPE_FILE), | |
42218b9f RÁE |
784 | (is_lib |
785 | ? this->extra_search_path_.c_str() | |
786 | : ""), | |
787 | false, | |
788 | this->options_); | |
89fc3421 CC |
789 | Input_argument* input_argument = new Input_argument(file); |
790 | Task_token* next_blocker = new Task_token(true); | |
791 | next_blocker->add_blocker(); | |
8c21d9d3 | 792 | if (parameters->incremental()) |
40f36857 CC |
793 | gold_error(_("input files added by plug-ins in --incremental mode not " |
794 | "supported yet")); | |
f1ed28fb | 795 | this->workqueue_->queue_soon(new Read_symbols(this->input_objects_, |
89fc3421 CC |
796 | this->symtab_, |
797 | this->layout_, | |
798 | this->dirpath_, | |
15f8229b | 799 | 0, |
89fc3421 CC |
800 | this->mapfile_, |
801 | input_argument, | |
802 | NULL, | |
b0193076 | 803 | NULL, |
89fc3421 CC |
804 | this->this_blocker_, |
805 | next_blocker)); | |
806 | this->this_blocker_ = next_blocker; | |
0f3b89d8 | 807 | this->any_added_ = true; |
89fc3421 CC |
808 | return LDPS_OK; |
809 | } | |
810 | ||
811 | // Class Pluginobj. | |
812 | ||
2ea97941 ILT |
813 | Pluginobj::Pluginobj(const std::string& name, Input_file* input_file, |
814 | off_t offset, off_t filesize) | |
815 | : Object(name, input_file, false, offset), | |
816 | nsyms_(0), syms_(NULL), symbols_(), filesize_(filesize), comdat_map_() | |
89fc3421 CC |
817 | { |
818 | } | |
819 | ||
235061c2 | 820 | // Return TRUE if a defined symbol is referenced from outside the |
f7c5b166 CC |
821 | // universe of claimed objects. Only references from relocatable, |
822 | // non-IR (unclaimed) objects count as a reference. References from | |
823 | // dynamic objects count only as "visible". | |
d66a9eb3 CC |
824 | |
825 | static inline bool | |
235061c2 | 826 | is_referenced_from_outside(Symbol* lsym) |
d66a9eb3 CC |
827 | { |
828 | if (lsym->in_real_elf()) | |
829 | return true; | |
830 | if (parameters->options().relocatable()) | |
831 | return true; | |
84ced98a RÁE |
832 | if (parameters->options().is_undefined(lsym->name())) |
833 | return true; | |
235061c2 CC |
834 | return false; |
835 | } | |
836 | ||
837 | // Return TRUE if a defined symbol might be reachable from outside the | |
838 | // load module. | |
839 | ||
840 | static inline bool | |
841 | is_visible_from_outside(Symbol* lsym) | |
842 | { | |
f7c5b166 CC |
843 | if (lsym->in_dyn()) |
844 | return true; | |
d66a9eb3 CC |
845 | if (parameters->options().export_dynamic() || parameters->options().shared()) |
846 | return lsym->is_externally_visible(); | |
847 | return false; | |
848 | } | |
849 | ||
89fc3421 CC |
850 | // Get symbol resolution info. |
851 | ||
852 | ld_plugin_status | |
235061c2 CC |
853 | Pluginobj::get_symbol_resolution_info(int nsyms, |
854 | ld_plugin_symbol* syms, | |
855 | int version) const | |
856 | { | |
857 | // For version 1 of this interface, we cannot use | |
858 | // LDPR_PREVAILING_DEF_IRONLY_EXP, so we return LDPR_PREVAILING_DEF | |
859 | // instead. | |
860 | const ld_plugin_symbol_resolution ldpr_prevailing_def_ironly_exp | |
861 | = (version > 1 | |
862 | ? LDPR_PREVAILING_DEF_IRONLY_EXP | |
863 | : LDPR_PREVAILING_DEF); | |
864 | ||
abc8dcba | 865 | if (nsyms > this->nsyms_) |
89fc3421 | 866 | return LDPS_NO_SYMS; |
b0193076 RÁE |
867 | |
868 | if (static_cast<size_t>(nsyms) > this->symbols_.size()) | |
869 | { | |
870 | // We never decided to include this object. We mark all symbols as | |
871 | // preempted. | |
ca09d69a | 872 | gold_assert(this->symbols_.size() == 0); |
b0193076 RÁE |
873 | for (int i = 0; i < nsyms; i++) |
874 | syms[i].resolution = LDPR_PREEMPTED_REG; | |
875 | return LDPS_OK; | |
876 | } | |
877 | ||
89fc3421 CC |
878 | for (int i = 0; i < nsyms; i++) |
879 | { | |
880 | ld_plugin_symbol* isym = &syms[i]; | |
881 | Symbol* lsym = this->symbols_[i]; | |
882 | ld_plugin_symbol_resolution res = LDPR_UNKNOWN; | |
883 | ||
884 | if (lsym->is_undefined()) | |
885 | // The symbol remains undefined. | |
886 | res = LDPR_UNDEF; | |
887 | else if (isym->def == LDPK_UNDEF | |
888 | || isym->def == LDPK_WEAKUNDEF | |
889 | || isym->def == LDPK_COMMON) | |
890 | { | |
891 | // The original symbol was undefined or common. | |
892 | if (lsym->source() != Symbol::FROM_OBJECT) | |
893 | res = LDPR_RESOLVED_EXEC; | |
be234d88 | 894 | else if (lsym->object()->pluginobj() == this) |
235061c2 CC |
895 | { |
896 | if (is_referenced_from_outside(lsym)) | |
897 | res = LDPR_PREVAILING_DEF; | |
898 | else if (is_visible_from_outside(lsym)) | |
899 | res = ldpr_prevailing_def_ironly_exp; | |
900 | else | |
901 | res = LDPR_PREVAILING_DEF_IRONLY; | |
902 | } | |
89fc3421 CC |
903 | else if (lsym->object()->pluginobj() != NULL) |
904 | res = LDPR_RESOLVED_IR; | |
905 | else if (lsym->object()->is_dynamic()) | |
906 | res = LDPR_RESOLVED_DYN; | |
907 | else | |
908 | res = LDPR_RESOLVED_EXEC; | |
909 | } | |
910 | else | |
911 | { | |
912 | // The original symbol was a definition. | |
913 | if (lsym->source() != Symbol::FROM_OBJECT) | |
914 | res = LDPR_PREEMPTED_REG; | |
915 | else if (lsym->object() == static_cast<const Object*>(this)) | |
235061c2 CC |
916 | { |
917 | if (is_referenced_from_outside(lsym)) | |
918 | res = LDPR_PREVAILING_DEF; | |
919 | else if (is_visible_from_outside(lsym)) | |
920 | res = ldpr_prevailing_def_ironly_exp; | |
921 | else | |
922 | res = LDPR_PREVAILING_DEF_IRONLY; | |
923 | } | |
89fc3421 CC |
924 | else |
925 | res = (lsym->object()->pluginobj() != NULL | |
926 | ? LDPR_PREEMPTED_IR | |
927 | : LDPR_PREEMPTED_REG); | |
928 | } | |
929 | isym->resolution = res; | |
930 | } | |
931 | return LDPS_OK; | |
932 | } | |
933 | ||
934 | // Return TRUE if the comdat group with key COMDAT_KEY from this object | |
935 | // should be kept. | |
936 | ||
937 | bool | |
2ea97941 | 938 | Pluginobj::include_comdat_group(std::string comdat_key, Layout* layout) |
89fc3421 CC |
939 | { |
940 | std::pair<Comdat_map::iterator, bool> ins = | |
941 | this->comdat_map_.insert(std::make_pair(comdat_key, false)); | |
942 | ||
943 | // If this is the first time we've seen this comdat key, ask the | |
944 | // layout object whether it should be included. | |
945 | if (ins.second) | |
2ea97941 ILT |
946 | ins.first->second = layout->find_or_add_kept_section(comdat_key, |
947 | NULL, 0, true, | |
948 | true, NULL); | |
89fc3421 CC |
949 | |
950 | return ins.first->second; | |
951 | } | |
952 | ||
953 | // Class Sized_pluginobj. | |
954 | ||
955 | template<int size, bool big_endian> | |
956 | Sized_pluginobj<size, big_endian>::Sized_pluginobj( | |
2ea97941 ILT |
957 | const std::string& name, |
958 | Input_file* input_file, | |
959 | off_t offset, | |
960 | off_t filesize) | |
961 | : Pluginobj(name, input_file, offset, filesize) | |
89fc3421 CC |
962 | { |
963 | } | |
964 | ||
965 | // Read the symbols. Not used for plugin objects. | |
966 | ||
967 | template<int size, bool big_endian> | |
968 | void | |
969 | Sized_pluginobj<size, big_endian>::do_read_symbols(Read_symbols_data*) | |
970 | { | |
971 | gold_unreachable(); | |
972 | } | |
973 | ||
974 | // Lay out the input sections. Not used for plugin objects. | |
975 | ||
976 | template<int size, bool big_endian> | |
977 | void | |
978 | Sized_pluginobj<size, big_endian>::do_layout(Symbol_table*, Layout*, | |
979 | Read_symbols_data*) | |
980 | { | |
981 | gold_unreachable(); | |
982 | } | |
983 | ||
984 | // Add the symbols to the symbol table. | |
985 | ||
89fc3421 CC |
986 | template<int size, bool big_endian> |
987 | void | |
988 | Sized_pluginobj<size, big_endian>::do_add_symbols(Symbol_table* symtab, | |
f488e4b0 | 989 | Read_symbols_data*, |
2ea97941 | 990 | Layout* layout) |
89fc3421 CC |
991 | { |
992 | const int sym_size = elfcpp::Elf_sizes<size>::sym_size; | |
993 | unsigned char symbuf[sym_size]; | |
994 | elfcpp::Sym<size, big_endian> sym(symbuf); | |
995 | elfcpp::Sym_write<size, big_endian> osym(symbuf); | |
996 | ||
997 | typedef typename elfcpp::Elf_types<size>::Elf_WXword Elf_size_type; | |
998 | ||
999 | this->symbols_.resize(this->nsyms_); | |
1000 | ||
1001 | for (int i = 0; i < this->nsyms_; ++i) | |
1002 | { | |
ca09d69a | 1003 | const struct ld_plugin_symbol* isym = &this->syms_[i]; |
2ea97941 | 1004 | const char* name = isym->name; |
89fc3421 CC |
1005 | const char* ver = isym->version; |
1006 | elfcpp::Elf_Half shndx; | |
1007 | elfcpp::STB bind; | |
1008 | elfcpp::STV vis; | |
1009 | ||
2ea97941 ILT |
1010 | if (name != NULL && name[0] == '\0') |
1011 | name = NULL; | |
89fc3421 CC |
1012 | if (ver != NULL && ver[0] == '\0') |
1013 | ver = NULL; | |
1014 | ||
1015 | switch (isym->def) | |
1016 | { | |
1017 | case LDPK_WEAKDEF: | |
1018 | case LDPK_WEAKUNDEF: | |
1019 | bind = elfcpp::STB_WEAK; | |
1020 | break; | |
1021 | case LDPK_DEF: | |
1022 | case LDPK_UNDEF: | |
1023 | case LDPK_COMMON: | |
1024 | default: | |
1025 | bind = elfcpp::STB_GLOBAL; | |
1026 | break; | |
1027 | } | |
1028 | ||
1029 | switch (isym->def) | |
1030 | { | |
1031 | case LDPK_DEF: | |
1032 | case LDPK_WEAKDEF: | |
1033 | shndx = elfcpp::SHN_ABS; | |
1034 | break; | |
1035 | case LDPK_COMMON: | |
1036 | shndx = elfcpp::SHN_COMMON; | |
1037 | break; | |
1038 | case LDPK_UNDEF: | |
1039 | case LDPK_WEAKUNDEF: | |
1040 | default: | |
1041 | shndx = elfcpp::SHN_UNDEF; | |
1042 | break; | |
1043 | } | |
1044 | ||
1045 | switch (isym->visibility) | |
1046 | { | |
1047 | case LDPV_PROTECTED: | |
105b6afd | 1048 | vis = elfcpp::STV_PROTECTED; |
89fc3421 CC |
1049 | break; |
1050 | case LDPV_INTERNAL: | |
105b6afd | 1051 | vis = elfcpp::STV_INTERNAL; |
89fc3421 CC |
1052 | break; |
1053 | case LDPV_HIDDEN: | |
105b6afd | 1054 | vis = elfcpp::STV_HIDDEN; |
89fc3421 CC |
1055 | break; |
1056 | case LDPV_DEFAULT: | |
1057 | default: | |
1058 | vis = elfcpp::STV_DEFAULT; | |
1059 | break; | |
1060 | } | |
1061 | ||
1062 | if (isym->comdat_key != NULL | |
1063 | && isym->comdat_key[0] != '\0' | |
2ea97941 | 1064 | && !this->include_comdat_group(isym->comdat_key, layout)) |
89fc3421 CC |
1065 | shndx = elfcpp::SHN_UNDEF; |
1066 | ||
1067 | osym.put_st_name(0); | |
1068 | osym.put_st_value(0); | |
1069 | osym.put_st_size(static_cast<Elf_size_type>(isym->size)); | |
1070 | osym.put_st_info(bind, elfcpp::STT_NOTYPE); | |
1071 | osym.put_st_other(vis, 0); | |
1072 | osym.put_st_shndx(shndx); | |
1073 | ||
1074 | this->symbols_[i] = | |
2ea97941 | 1075 | symtab->add_from_pluginobj<size, big_endian>(this, name, ver, &sym); |
89fc3421 CC |
1076 | } |
1077 | } | |
1078 | ||
b0193076 RÁE |
1079 | template<int size, bool big_endian> |
1080 | Archive::Should_include | |
1081 | Sized_pluginobj<size, big_endian>::do_should_include_member( | |
88a4108b ILT |
1082 | Symbol_table* symtab, |
1083 | Layout* layout, | |
1084 | Read_symbols_data*, | |
1085 | std::string* why) | |
b0193076 RÁE |
1086 | { |
1087 | char* tmpbuf = NULL; | |
1088 | size_t tmpbuflen = 0; | |
1089 | ||
88a4108b ILT |
1090 | for (int i = 0; i < this->nsyms_; ++i) |
1091 | { | |
1092 | const struct ld_plugin_symbol& sym = this->syms_[i]; | |
1093 | const char* name = sym.name; | |
1094 | Symbol* symbol; | |
1095 | Archive::Should_include t = Archive::should_include_member(symtab, | |
1096 | layout, | |
1097 | name, | |
1098 | &symbol, why, | |
1099 | &tmpbuf, | |
1100 | &tmpbuflen); | |
b0193076 RÁE |
1101 | if (t == Archive::SHOULD_INCLUDE_YES) |
1102 | { | |
1103 | if (tmpbuf != NULL) | |
1104 | free(tmpbuf); | |
1105 | return t; | |
1106 | } | |
88a4108b | 1107 | } |
b0193076 RÁE |
1108 | if (tmpbuf != NULL) |
1109 | free(tmpbuf); | |
1110 | return Archive::SHOULD_INCLUDE_UNKNOWN; | |
1111 | } | |
1112 | ||
e0c52780 CC |
1113 | // Iterate over global symbols, calling a visitor class V for each. |
1114 | ||
1115 | template<int size, bool big_endian> | |
1116 | void | |
1117 | Sized_pluginobj<size, big_endian>::do_for_all_global_symbols( | |
1118 | Read_symbols_data*, | |
1119 | Library_base::Symbol_visitor_base* v) | |
1120 | { | |
1121 | for (int i = 0; i < this->nsyms_; ++i) | |
1122 | { | |
1123 | const struct ld_plugin_symbol& sym = this->syms_[i]; | |
1124 | if (sym.def != LDPK_UNDEF) | |
1125 | v->visit(sym.name); | |
1126 | } | |
1127 | } | |
1128 | ||
cdc29364 CC |
1129 | // Iterate over local symbols, calling a visitor class V for each GOT offset |
1130 | // associated with a local symbol. | |
1131 | template<int size, bool big_endian> | |
1132 | void | |
1133 | Sized_pluginobj<size, big_endian>::do_for_all_local_got_entries( | |
1134 | Got_offset_list::Visitor*) const | |
1135 | { | |
1136 | gold_unreachable(); | |
1137 | } | |
1138 | ||
89fc3421 CC |
1139 | // Get the size of a section. Not used for plugin objects. |
1140 | ||
1141 | template<int size, bool big_endian> | |
1142 | uint64_t | |
1143 | Sized_pluginobj<size, big_endian>::do_section_size(unsigned int) | |
1144 | { | |
1145 | gold_unreachable(); | |
1146 | return 0; | |
1147 | } | |
1148 | ||
1149 | // Get the name of a section. Not used for plugin objects. | |
1150 | ||
1151 | template<int size, bool big_endian> | |
1152 | std::string | |
1153 | Sized_pluginobj<size, big_endian>::do_section_name(unsigned int) | |
1154 | { | |
1155 | gold_unreachable(); | |
1156 | return std::string(); | |
1157 | } | |
1158 | ||
1159 | // Return a view of the contents of a section. Not used for plugin objects. | |
1160 | ||
1161 | template<int size, bool big_endian> | |
1162 | Object::Location | |
1163 | Sized_pluginobj<size, big_endian>::do_section_contents(unsigned int) | |
1164 | { | |
1165 | Location loc(0, 0); | |
1166 | ||
1167 | gold_unreachable(); | |
1168 | return loc; | |
1169 | } | |
1170 | ||
1171 | // Return section flags. Not used for plugin objects. | |
1172 | ||
1173 | template<int size, bool big_endian> | |
1174 | uint64_t | |
1175 | Sized_pluginobj<size, big_endian>::do_section_flags(unsigned int) | |
1176 | { | |
1177 | gold_unreachable(); | |
1178 | return 0; | |
1179 | } | |
1180 | ||
ef15dade ST |
1181 | // Return section entsize. Not used for plugin objects. |
1182 | ||
1183 | template<int size, bool big_endian> | |
1184 | uint64_t | |
1185 | Sized_pluginobj<size, big_endian>::do_section_entsize(unsigned int) | |
1186 | { | |
1187 | gold_unreachable(); | |
1188 | return 0; | |
1189 | } | |
1190 | ||
89fc3421 CC |
1191 | // Return section address. Not used for plugin objects. |
1192 | ||
1193 | template<int size, bool big_endian> | |
1194 | uint64_t | |
1195 | Sized_pluginobj<size, big_endian>::do_section_address(unsigned int) | |
1196 | { | |
1197 | gold_unreachable(); | |
1198 | return 0; | |
1199 | } | |
1200 | ||
1201 | // Return section type. Not used for plugin objects. | |
1202 | ||
1203 | template<int size, bool big_endian> | |
1204 | unsigned int | |
1205 | Sized_pluginobj<size, big_endian>::do_section_type(unsigned int) | |
1206 | { | |
1207 | gold_unreachable(); | |
1208 | return 0; | |
1209 | } | |
1210 | ||
1211 | // Return the section link field. Not used for plugin objects. | |
1212 | ||
1213 | template<int size, bool big_endian> | |
1214 | unsigned int | |
1215 | Sized_pluginobj<size, big_endian>::do_section_link(unsigned int) | |
1216 | { | |
1217 | gold_unreachable(); | |
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | // Return the section link field. Not used for plugin objects. | |
1222 | ||
1223 | template<int size, bool big_endian> | |
1224 | unsigned int | |
1225 | Sized_pluginobj<size, big_endian>::do_section_info(unsigned int) | |
1226 | { | |
1227 | gold_unreachable(); | |
1228 | return 0; | |
1229 | } | |
1230 | ||
1231 | // Return the section alignment. Not used for plugin objects. | |
1232 | ||
1233 | template<int size, bool big_endian> | |
1234 | uint64_t | |
1235 | Sized_pluginobj<size, big_endian>::do_section_addralign(unsigned int) | |
1236 | { | |
1237 | gold_unreachable(); | |
1238 | return 0; | |
1239 | } | |
1240 | ||
1241 | // Return the Xindex structure to use. Not used for plugin objects. | |
1242 | ||
1243 | template<int size, bool big_endian> | |
1244 | Xindex* | |
1245 | Sized_pluginobj<size, big_endian>::do_initialize_xindex() | |
1246 | { | |
1247 | gold_unreachable(); | |
1248 | return NULL; | |
1249 | } | |
1250 | ||
53bbcc1b CC |
1251 | // Get symbol counts. Don't count plugin objects; the replacement |
1252 | // files will provide the counts. | |
89fc3421 CC |
1253 | |
1254 | template<int size, bool big_endian> | |
1255 | void | |
53bbcc1b CC |
1256 | Sized_pluginobj<size, big_endian>::do_get_global_symbol_counts( |
1257 | const Symbol_table*, | |
1258 | size_t* defined, | |
1259 | size_t* used) const | |
89fc3421 | 1260 | { |
53bbcc1b CC |
1261 | *defined = 0; |
1262 | *used = 0; | |
89fc3421 CC |
1263 | } |
1264 | ||
dde3f402 ILT |
1265 | // Get symbols. Not used for plugin objects. |
1266 | ||
1267 | template<int size, bool big_endian> | |
1268 | const Object::Symbols* | |
1269 | Sized_pluginobj<size, big_endian>::do_get_global_symbols() const | |
1270 | { | |
1271 | gold_unreachable(); | |
1272 | } | |
1273 | ||
5995b570 | 1274 | // Class Plugin_finish. This task runs after all replacement files have |
78384e8f CC |
1275 | // been added. For now, it's a placeholder for a possible plugin API |
1276 | // to allow the plugin to release most of its resources. The cleanup | |
1277 | // handlers must be called later, because they can remove the temporary | |
1278 | // object files that are needed until the end of the link. | |
89fc3421 | 1279 | |
5995b570 | 1280 | class Plugin_finish : public Task |
89fc3421 CC |
1281 | { |
1282 | public: | |
5995b570 | 1283 | Plugin_finish(Task_token* this_blocker, Task_token* next_blocker) |
89fc3421 CC |
1284 | : this_blocker_(this_blocker), next_blocker_(next_blocker) |
1285 | { } | |
1286 | ||
5995b570 | 1287 | ~Plugin_finish() |
89fc3421 CC |
1288 | { |
1289 | if (this->this_blocker_ != NULL) | |
1290 | delete this->this_blocker_; | |
1291 | } | |
1292 | ||
1293 | Task_token* | |
1294 | is_runnable() | |
1295 | { | |
1296 | if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked()) | |
1297 | return this->this_blocker_; | |
1298 | return NULL; | |
1299 | } | |
1300 | ||
1301 | void | |
1302 | locks(Task_locker* tl) | |
1303 | { tl->add(this, this->next_blocker_); } | |
1304 | ||
1305 | void | |
1306 | run(Workqueue*) | |
483620e8 | 1307 | { |
78384e8f | 1308 | // We could call early cleanup handlers here. |
483620e8 | 1309 | } |
89fc3421 CC |
1310 | |
1311 | std::string | |
1312 | get_name() const | |
5995b570 | 1313 | { return "Plugin_finish"; } |
89fc3421 CC |
1314 | |
1315 | private: | |
1316 | Task_token* this_blocker_; | |
1317 | Task_token* next_blocker_; | |
1318 | }; | |
1319 | ||
1320 | // Class Plugin_hook. | |
1321 | ||
1322 | Plugin_hook::~Plugin_hook() | |
1323 | { | |
1324 | } | |
1325 | ||
1326 | // Return whether a Plugin_hook task is runnable. | |
1327 | ||
1328 | Task_token* | |
1329 | Plugin_hook::is_runnable() | |
1330 | { | |
1331 | if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked()) | |
1332 | return this->this_blocker_; | |
1333 | return NULL; | |
1334 | } | |
1335 | ||
1336 | // Return a Task_locker for a Plugin_hook task. We don't need any | |
1337 | // locks here. | |
1338 | ||
1339 | void | |
1340 | Plugin_hook::locks(Task_locker*) | |
1341 | { | |
1342 | } | |
1343 | ||
89fc3421 CC |
1344 | // Run the "all symbols read" plugin hook. |
1345 | ||
1346 | void | |
5995b570 | 1347 | Plugin_hook::run(Workqueue* workqueue) |
89fc3421 CC |
1348 | { |
1349 | gold_assert(this->options_.has_plugins()); | |
a10ae760 | 1350 | Symbol* start_sym = this->symtab_->lookup(parameters->entry()); |
91ff43fe RÁE |
1351 | if (start_sym != NULL) |
1352 | start_sym->set_in_real_elf(); | |
1353 | ||
89fc3421 | 1354 | this->options_.plugins()->all_symbols_read(workqueue, |
0f7c0701 | 1355 | this, |
89fc3421 CC |
1356 | this->input_objects_, |
1357 | this->symtab_, | |
89fc3421 CC |
1358 | this->dirpath_, |
1359 | this->mapfile_, | |
1360 | &this->this_blocker_); | |
5995b570 CC |
1361 | workqueue->queue_soon(new Plugin_finish(this->this_blocker_, |
1362 | this->next_blocker_)); | |
89fc3421 CC |
1363 | } |
1364 | ||
1365 | // The C interface routines called by the plugins. | |
1366 | ||
1367 | #ifdef ENABLE_PLUGINS | |
1368 | ||
1369 | // Register a claim-file handler. | |
1370 | ||
1371 | static enum ld_plugin_status | |
1372 | register_claim_file(ld_plugin_claim_file_handler handler) | |
1373 | { | |
1374 | gold_assert(parameters->options().has_plugins()); | |
1375 | parameters->options().plugins()->set_claim_file_handler(handler); | |
1376 | return LDPS_OK; | |
1377 | } | |
1378 | ||
1379 | // Register an all-symbols-read handler. | |
1380 | ||
1381 | static enum ld_plugin_status | |
1382 | register_all_symbols_read(ld_plugin_all_symbols_read_handler handler) | |
1383 | { | |
1384 | gold_assert(parameters->options().has_plugins()); | |
1385 | parameters->options().plugins()->set_all_symbols_read_handler(handler); | |
1386 | return LDPS_OK; | |
1387 | } | |
1388 | ||
1389 | // Register a cleanup handler. | |
1390 | ||
1391 | static enum ld_plugin_status | |
1392 | register_cleanup(ld_plugin_cleanup_handler handler) | |
1393 | { | |
1394 | gold_assert(parameters->options().has_plugins()); | |
1395 | parameters->options().plugins()->set_cleanup_handler(handler); | |
1396 | return LDPS_OK; | |
1397 | } | |
1398 | ||
1399 | // Add symbols from a plugin-claimed input file. | |
1400 | ||
1401 | static enum ld_plugin_status | |
ca09d69a | 1402 | add_symbols(void* handle, int nsyms, const ld_plugin_symbol* syms) |
89fc3421 CC |
1403 | { |
1404 | gold_assert(parameters->options().has_plugins()); | |
1405 | Pluginobj* obj = parameters->options().plugins()->make_plugin_object( | |
1406 | static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle))); | |
1407 | if (obj == NULL) | |
1408 | return LDPS_ERR; | |
1409 | obj->store_incoming_symbols(nsyms, syms); | |
1410 | return LDPS_OK; | |
1411 | } | |
1412 | ||
0f7c0701 CC |
1413 | // Get the input file information with an open (possibly re-opened) |
1414 | // file descriptor. | |
1415 | ||
1416 | static enum ld_plugin_status | |
ca09d69a | 1417 | get_input_file(const void* handle, struct ld_plugin_input_file* file) |
0f7c0701 CC |
1418 | { |
1419 | gold_assert(parameters->options().has_plugins()); | |
1420 | unsigned int obj_index = | |
1421 | static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle)); | |
1422 | return parameters->options().plugins()->get_input_file(obj_index, file); | |
1423 | } | |
1424 | ||
1425 | // Release the input file. | |
1426 | ||
1427 | static enum ld_plugin_status | |
ca09d69a | 1428 | release_input_file(const void* handle) |
0f7c0701 CC |
1429 | { |
1430 | gold_assert(parameters->options().has_plugins()); | |
1431 | unsigned int obj_index = | |
1432 | static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle)); | |
1433 | return parameters->options().plugins()->release_input_file(obj_index); | |
1434 | } | |
1435 | ||
9c793f14 RÁE |
1436 | static enum ld_plugin_status |
1437 | get_view(const void *handle, const void **viewp) | |
1438 | { | |
1439 | gold_assert(parameters->options().has_plugins()); | |
1440 | unsigned int obj_index = | |
1441 | static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle)); | |
1442 | return parameters->options().plugins()->get_view(obj_index, viewp); | |
1443 | } | |
1444 | ||
89fc3421 CC |
1445 | // Get the symbol resolution info for a plugin-claimed input file. |
1446 | ||
1447 | static enum ld_plugin_status | |
ca09d69a | 1448 | get_symbols(const void* handle, int nsyms, ld_plugin_symbol* syms) |
89fc3421 CC |
1449 | { |
1450 | gold_assert(parameters->options().has_plugins()); | |
e9552f7e ST |
1451 | Object* obj = parameters->options().plugins()->object( |
1452 | static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle))); | |
89fc3421 CC |
1453 | if (obj == NULL) |
1454 | return LDPS_ERR; | |
e9552f7e ST |
1455 | Pluginobj* plugin_obj = obj->pluginobj(); |
1456 | if (plugin_obj == NULL) | |
1457 | return LDPS_ERR; | |
235061c2 CC |
1458 | return plugin_obj->get_symbol_resolution_info(nsyms, syms, 1); |
1459 | } | |
1460 | ||
1461 | // Version 2 of the above. The only difference is that this version | |
1462 | // is allowed to return the resolution code LDPR_PREVAILING_DEF_IRONLY_EXP. | |
1463 | ||
1464 | static enum ld_plugin_status | |
1465 | get_symbols_v2(const void* handle, int nsyms, ld_plugin_symbol* syms) | |
1466 | { | |
1467 | gold_assert(parameters->options().has_plugins()); | |
1468 | Object* obj = parameters->options().plugins()->object( | |
1469 | static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle))); | |
1470 | if (obj == NULL) | |
1471 | return LDPS_ERR; | |
1472 | Pluginobj* plugin_obj = obj->pluginobj(); | |
1473 | if (plugin_obj == NULL) | |
1474 | return LDPS_ERR; | |
1475 | return plugin_obj->get_symbol_resolution_info(nsyms, syms, 2); | |
89fc3421 CC |
1476 | } |
1477 | ||
1478 | // Add a new (real) input file generated by a plugin. | |
1479 | ||
1480 | static enum ld_plugin_status | |
ca09d69a | 1481 | add_input_file(const char* pathname) |
89fc3421 CC |
1482 | { |
1483 | gold_assert(parameters->options().has_plugins()); | |
e99daf92 ILT |
1484 | return parameters->options().plugins()->add_input_file(pathname, false); |
1485 | } | |
1486 | ||
1487 | // Add a new (real) library required by a plugin. | |
1488 | ||
1489 | static enum ld_plugin_status | |
ca09d69a | 1490 | add_input_library(const char* pathname) |
e99daf92 ILT |
1491 | { |
1492 | gold_assert(parameters->options().has_plugins()); | |
1493 | return parameters->options().plugins()->add_input_file(pathname, true); | |
89fc3421 CC |
1494 | } |
1495 | ||
42218b9f RÁE |
1496 | // Set the extra library path to be used by libraries added via |
1497 | // add_input_library | |
1498 | ||
1499 | static enum ld_plugin_status | |
ca09d69a | 1500 | set_extra_library_path(const char* path) |
42218b9f RÁE |
1501 | { |
1502 | gold_assert(parameters->options().has_plugins()); | |
1503 | return parameters->options().plugins()->set_extra_library_path(path); | |
1504 | } | |
1505 | ||
89fc3421 CC |
1506 | // Issue a diagnostic message from a plugin. |
1507 | ||
1508 | static enum ld_plugin_status | |
ca09d69a | 1509 | message(int level, const char* format, ...) |
89fc3421 CC |
1510 | { |
1511 | va_list args; | |
1512 | va_start(args, format); | |
1513 | ||
1514 | switch (level) | |
1515 | { | |
1516 | case LDPL_INFO: | |
1517 | parameters->errors()->info(format, args); | |
1518 | break; | |
1519 | case LDPL_WARNING: | |
1520 | parameters->errors()->warning(format, args); | |
1521 | break; | |
1522 | case LDPL_ERROR: | |
1523 | default: | |
1524 | parameters->errors()->error(format, args); | |
1525 | break; | |
1526 | case LDPL_FATAL: | |
1527 | parameters->errors()->fatal(format, args); | |
1528 | break; | |
1529 | } | |
1530 | ||
1531 | va_end(args); | |
1532 | return LDPS_OK; | |
1533 | } | |
1534 | ||
e9552f7e ST |
1535 | // Get the section count of the object corresponding to the handle. This |
1536 | // plugin interface can only be called in the claim_file handler of the plugin. | |
1537 | ||
1538 | static enum ld_plugin_status | |
1539 | get_input_section_count(const void* handle, unsigned int* count) | |
1540 | { | |
1541 | gold_assert(parameters->options().has_plugins()); | |
1542 | ||
1543 | if (!parameters->options().plugins()->in_claim_file_handler()) | |
1544 | return LDPS_ERR; | |
1545 | ||
1546 | Object* obj = parameters->options().plugins()->get_elf_object(handle); | |
1547 | ||
1548 | if (obj == NULL) | |
1549 | return LDPS_ERR; | |
1550 | ||
1551 | *count = obj->shnum(); | |
1552 | return LDPS_OK; | |
1553 | } | |
1554 | ||
1555 | // Get the type of the specified section in the object corresponding | |
1556 | // to the handle. This plugin interface can only be called in the | |
1557 | // claim_file handler of the plugin. | |
1558 | ||
1559 | static enum ld_plugin_status | |
1560 | get_input_section_type(const struct ld_plugin_section section, | |
1561 | unsigned int* type) | |
1562 | { | |
1563 | gold_assert(parameters->options().has_plugins()); | |
1564 | ||
1565 | if (!parameters->options().plugins()->in_claim_file_handler()) | |
1566 | return LDPS_ERR; | |
1567 | ||
1568 | Object* obj | |
1569 | = parameters->options().plugins()->get_elf_object(section.handle); | |
1570 | ||
1571 | if (obj == NULL) | |
1572 | return LDPS_BAD_HANDLE; | |
1573 | ||
1574 | *type = obj->section_type(section.shndx); | |
1575 | return LDPS_OK; | |
1576 | } | |
1577 | ||
1578 | // Get the name of the specified section in the object corresponding | |
1579 | // to the handle. This plugin interface can only be called in the | |
1580 | // claim_file handler of the plugin. | |
1581 | ||
1582 | static enum ld_plugin_status | |
1583 | get_input_section_name(const struct ld_plugin_section section, | |
1584 | char** section_name_ptr) | |
1585 | { | |
1586 | gold_assert(parameters->options().has_plugins()); | |
1587 | ||
1588 | if (!parameters->options().plugins()->in_claim_file_handler()) | |
1589 | return LDPS_ERR; | |
1590 | ||
1591 | Object* obj | |
1592 | = parameters->options().plugins()->get_elf_object(section.handle); | |
1593 | ||
1594 | if (obj == NULL) | |
1595 | return LDPS_BAD_HANDLE; | |
1596 | ||
1597 | // Check if the object is locked before getting the section name. | |
1598 | gold_assert(obj->is_locked()); | |
1599 | ||
1600 | const std::string section_name = obj->section_name(section.shndx); | |
1601 | *section_name_ptr = static_cast<char*>(malloc(section_name.length() + 1)); | |
1602 | memcpy(*section_name_ptr, section_name.c_str(), section_name.length() + 1); | |
1603 | return LDPS_OK; | |
1604 | } | |
1605 | ||
1606 | // Get the contents of the specified section in the object corresponding | |
1607 | // to the handle. This plugin interface can only be called in the | |
1608 | // claim_file handler of the plugin. | |
1609 | ||
1610 | static enum ld_plugin_status | |
1611 | get_input_section_contents(const struct ld_plugin_section section, | |
1612 | const unsigned char** section_contents_ptr, | |
1613 | size_t* len) | |
1614 | { | |
1615 | gold_assert(parameters->options().has_plugins()); | |
1616 | ||
1617 | if (!parameters->options().plugins()->in_claim_file_handler()) | |
1618 | return LDPS_ERR; | |
1619 | ||
1620 | Object* obj | |
1621 | = parameters->options().plugins()->get_elf_object(section.handle); | |
1622 | ||
1623 | if (obj == NULL) | |
1624 | return LDPS_BAD_HANDLE; | |
1625 | ||
1626 | // Check if the object is locked before getting the section contents. | |
1627 | gold_assert(obj->is_locked()); | |
1628 | ||
1629 | section_size_type plen; | |
1630 | *section_contents_ptr | |
1631 | = obj->section_contents(section.shndx, &plen, false); | |
1632 | *len = plen; | |
1633 | return LDPS_OK; | |
1634 | } | |
1635 | ||
1636 | // Specify the ordering of sections in the final layout. The sections are | |
1637 | // specified as (handle,shndx) pairs in the two arrays in the order in | |
1638 | // which they should appear in the final layout. | |
1639 | ||
1640 | static enum ld_plugin_status | |
f0558624 | 1641 | update_section_order(const struct ld_plugin_section* section_list, |
e9552f7e ST |
1642 | unsigned int num_sections) |
1643 | { | |
1644 | gold_assert(parameters->options().has_plugins()); | |
1645 | ||
1646 | if (num_sections == 0) | |
1647 | return LDPS_OK; | |
1648 | ||
1649 | if (section_list == NULL) | |
1650 | return LDPS_ERR; | |
1651 | ||
f0558624 ST |
1652 | Layout* layout = parameters->options().plugins()->layout(); |
1653 | gold_assert (layout != NULL); | |
e9552f7e | 1654 | |
f0558624 ST |
1655 | std::map<Section_id, unsigned int>* order_map |
1656 | = layout->get_section_order_map(); | |
1657 | ||
1658 | /* Store the mapping from Section_id to section position in layout's | |
1659 | order_map to consult after output sections are added. */ | |
e9552f7e ST |
1660 | for (unsigned int i = 0; i < num_sections; ++i) |
1661 | { | |
1662 | Object* obj = parameters->options().plugins()->get_elf_object( | |
1663 | section_list[i].handle); | |
1664 | if (obj == NULL) | |
1665 | return LDPS_BAD_HANDLE; | |
1666 | unsigned int shndx = section_list[i].shndx; | |
1667 | Section_id secn_id(obj, shndx); | |
f0558624 | 1668 | (*order_map)[secn_id] = i + 1; |
e9552f7e ST |
1669 | } |
1670 | ||
e9552f7e ST |
1671 | return LDPS_OK; |
1672 | } | |
1673 | ||
1674 | // Let the linker know that the sections could be reordered. | |
1675 | ||
1676 | static enum ld_plugin_status | |
1677 | allow_section_ordering() | |
1678 | { | |
1679 | gold_assert(parameters->options().has_plugins()); | |
1680 | Layout* layout = parameters->options().plugins()->layout(); | |
1681 | layout->set_section_ordering_specified(); | |
1682 | return LDPS_OK; | |
1683 | } | |
1684 | ||
89fc3421 CC |
1685 | #endif // ENABLE_PLUGINS |
1686 | ||
1687 | // Allocate a Pluginobj object of the appropriate size and endianness. | |
1688 | ||
1689 | static Pluginobj* | |
0f7c0701 | 1690 | make_sized_plugin_object(Input_file* input_file, off_t offset, off_t filesize) |
89fc3421 | 1691 | { |
89fc3421 CC |
1692 | Pluginobj* obj = NULL; |
1693 | ||
029ba973 ILT |
1694 | parameters_force_valid_target(); |
1695 | const Target& target(parameters->target()); | |
89fc3421 | 1696 | |
029ba973 | 1697 | if (target.get_size() == 32) |
89fc3421 | 1698 | { |
029ba973 | 1699 | if (target.is_big_endian()) |
92f03fcb | 1700 | #ifdef HAVE_TARGET_32_BIG |
89fc3421 | 1701 | obj = new Sized_pluginobj<32, true>(input_file->filename(), |
0f7c0701 | 1702 | input_file, offset, filesize); |
92f03fcb CC |
1703 | #else |
1704 | gold_error(_("%s: not configured to support " | |
1705 | "32-bit big-endian object"), | |
1706 | input_file->filename().c_str()); | |
89fc3421 | 1707 | #endif |
89fc3421 | 1708 | else |
92f03fcb | 1709 | #ifdef HAVE_TARGET_32_LITTLE |
89fc3421 | 1710 | obj = new Sized_pluginobj<32, false>(input_file->filename(), |
0f7c0701 | 1711 | input_file, offset, filesize); |
92f03fcb CC |
1712 | #else |
1713 | gold_error(_("%s: not configured to support " | |
1714 | "32-bit little-endian object"), | |
1715 | input_file->filename().c_str()); | |
89fc3421 CC |
1716 | #endif |
1717 | } | |
029ba973 | 1718 | else if (target.get_size() == 64) |
89fc3421 | 1719 | { |
029ba973 | 1720 | if (target.is_big_endian()) |
92f03fcb | 1721 | #ifdef HAVE_TARGET_64_BIG |
89fc3421 | 1722 | obj = new Sized_pluginobj<64, true>(input_file->filename(), |
0f7c0701 | 1723 | input_file, offset, filesize); |
92f03fcb CC |
1724 | #else |
1725 | gold_error(_("%s: not configured to support " | |
1726 | "64-bit big-endian object"), | |
1727 | input_file->filename().c_str()); | |
89fc3421 | 1728 | #endif |
89fc3421 | 1729 | else |
92f03fcb | 1730 | #ifdef HAVE_TARGET_64_LITTLE |
89fc3421 | 1731 | obj = new Sized_pluginobj<64, false>(input_file->filename(), |
0f7c0701 | 1732 | input_file, offset, filesize); |
92f03fcb CC |
1733 | #else |
1734 | gold_error(_("%s: not configured to support " | |
1735 | "64-bit little-endian object"), | |
1736 | input_file->filename().c_str()); | |
89fc3421 CC |
1737 | #endif |
1738 | } | |
1739 | ||
1740 | gold_assert(obj != NULL); | |
89fc3421 CC |
1741 | return obj; |
1742 | } | |
1743 | ||
1744 | } // End namespace gold. |