1 // plugin.cc -- plugin manager for gold -*- C++ -*-
3 // Copyright 2008, 2009, 2010 Free Software Foundation, Inc.
4 // Written by Cary Coutant <ccoutant@google.com>.
6 // This file is part of gold.
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.
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.
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.
35 #include "parameters.h"
51 // The linker's exported interfaces.
56 static enum ld_plugin_status
57 register_claim_file(ld_plugin_claim_file_handler handler);
59 static enum ld_plugin_status
60 register_all_symbols_read(ld_plugin_all_symbols_read_handler handler);
62 static enum ld_plugin_status
63 register_cleanup(ld_plugin_cleanup_handler handler);
65 static enum ld_plugin_status
66 add_symbols(void *handle, int nsyms, const struct ld_plugin_symbol *syms);
68 static enum ld_plugin_status
69 get_input_file(const void *handle, struct ld_plugin_input_file *file);
71 static enum ld_plugin_status
72 release_input_file(const void *handle);
74 static enum ld_plugin_status
75 get_symbols(const void *handle, int nsyms, struct ld_plugin_symbol *syms);
77 static enum ld_plugin_status
78 add_input_file(const char *pathname);
80 static enum ld_plugin_status
81 add_input_library(const char *pathname);
83 static enum ld_plugin_status
84 set_extra_library_path(const char *path);
86 static enum ld_plugin_status
87 message(int level, const char *format, ...);
91 #endif // ENABLE_PLUGINS
93 static Pluginobj* make_sized_plugin_object(Input_file* input_file,
94 off_t offset, off_t filesize);
98 // Load one plugin library.
103 #ifdef ENABLE_PLUGINS
104 // Load the plugin library.
105 // FIXME: Look for the library in standard locations.
106 this->handle_ = dlopen(this->filename_.c_str(), RTLD_NOW);
107 if (this->handle_ == NULL)
109 gold_error(_("%s: could not load plugin library"),
110 this->filename_.c_str());
114 // Find the plugin's onload entry point.
115 void* ptr = dlsym(this->handle_, "onload");
118 gold_error(_("%s: could not find onload entry point"),
119 this->filename_.c_str());
122 ld_plugin_onload onload;
123 gold_assert(sizeof(onload) == sizeof(ptr));
124 memcpy(&onload, &ptr, sizeof(ptr));
126 // Get the linker's version number.
127 const char* ver = get_version_string();
130 sscanf(ver, "%d.%d", &major, &minor);
132 // Allocate and populate a transfer vector.
133 const int tv_fixed_size = 16;
134 int tv_size = this->args_.size() + tv_fixed_size;
135 ld_plugin_tv *tv = new ld_plugin_tv[tv_size];
137 // Put LDPT_MESSAGE at the front of the list so the plugin can use it
138 // while processing subsequent entries.
140 tv[i].tv_tag = LDPT_MESSAGE;
141 tv[i].tv_u.tv_message = message;
144 tv[i].tv_tag = LDPT_API_VERSION;
145 tv[i].tv_u.tv_val = LD_PLUGIN_API_VERSION;
148 tv[i].tv_tag = LDPT_GOLD_VERSION;
149 tv[i].tv_u.tv_val = major * 100 + minor;
152 tv[i].tv_tag = LDPT_LINKER_OUTPUT;
153 if (parameters->options().relocatable())
154 tv[i].tv_u.tv_val = LDPO_REL;
155 else if (parameters->options().shared())
156 tv[i].tv_u.tv_val = LDPO_DYN;
158 tv[i].tv_u.tv_val = LDPO_EXEC;
161 tv[i].tv_tag = LDPT_OUTPUT_NAME;
162 tv[i].tv_u.tv_string = parameters->options().output();
164 for (unsigned int j = 0; j < this->args_.size(); ++j)
167 tv[i].tv_tag = LDPT_OPTION;
168 tv[i].tv_u.tv_string = this->args_[j].c_str();
172 tv[i].tv_tag = LDPT_REGISTER_CLAIM_FILE_HOOK;
173 tv[i].tv_u.tv_register_claim_file = register_claim_file;
176 tv[i].tv_tag = LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK;
177 tv[i].tv_u.tv_register_all_symbols_read = register_all_symbols_read;
180 tv[i].tv_tag = LDPT_REGISTER_CLEANUP_HOOK;
181 tv[i].tv_u.tv_register_cleanup = register_cleanup;
184 tv[i].tv_tag = LDPT_ADD_SYMBOLS;
185 tv[i].tv_u.tv_add_symbols = add_symbols;
188 tv[i].tv_tag = LDPT_GET_INPUT_FILE;
189 tv[i].tv_u.tv_get_input_file = get_input_file;
192 tv[i].tv_tag = LDPT_RELEASE_INPUT_FILE;
193 tv[i].tv_u.tv_release_input_file = release_input_file;
196 tv[i].tv_tag = LDPT_GET_SYMBOLS;
197 tv[i].tv_u.tv_get_symbols = get_symbols;
200 tv[i].tv_tag = LDPT_ADD_INPUT_FILE;
201 tv[i].tv_u.tv_add_input_file = add_input_file;
204 tv[i].tv_tag = LDPT_ADD_INPUT_LIBRARY;
205 tv[i].tv_u.tv_add_input_library = add_input_library;
208 tv[i].tv_tag = LDPT_SET_EXTRA_LIBRARY_PATH;
209 tv[i].tv_u.tv_set_extra_library_path = set_extra_library_path;
212 tv[i].tv_tag = LDPT_NULL;
213 tv[i].tv_u.tv_val = 0;
215 gold_assert(i == tv_size - 1);
217 // Call the onload entry point.
221 #endif // ENABLE_PLUGINS
224 // Call the plugin claim-file handler.
227 Plugin::claim_file(struct ld_plugin_input_file *plugin_input_file)
231 if (this->claim_file_handler_ != NULL)
233 (*this->claim_file_handler_)(plugin_input_file, &claimed);
240 // Call the all-symbols-read handler.
243 Plugin::all_symbols_read()
245 if (this->all_symbols_read_handler_ != NULL)
246 (*this->all_symbols_read_handler_)();
249 // Call the cleanup handler.
254 if (this->cleanup_handler_ != NULL && !this->cleanup_done_)
256 // Set this flag before calling to prevent a recursive plunge
257 // in the event that a plugin's cleanup handler issues a
259 this->cleanup_done_ = true;
260 (*this->cleanup_handler_)();
264 // Plugin_manager methods.
266 Plugin_manager::~Plugin_manager()
268 for (Plugin_list::iterator p = this->plugins_.begin();
269 p != this->plugins_.end();
272 this->plugins_.clear();
273 for (Object_list::iterator obj = this->objects_.begin();
274 obj != this->objects_.end();
277 this->objects_.clear();
280 // Load all plugin libraries.
283 Plugin_manager::load_plugins()
285 for (this->current_ = this->plugins_.begin();
286 this->current_ != this->plugins_.end();
288 (*this->current_)->load();
291 // Call the plugin claim-file handlers in turn to see if any claim the file.
294 Plugin_manager::claim_file(Input_file* input_file, off_t offset,
297 if (this->in_replacement_phase_)
300 unsigned int handle = this->objects_.size();
301 this->input_file_ = input_file;
302 this->plugin_input_file_.name = input_file->filename().c_str();
303 this->plugin_input_file_.fd = input_file->file().descriptor();
304 this->plugin_input_file_.offset = offset;
305 this->plugin_input_file_.filesize = filesize;
306 this->plugin_input_file_.handle = reinterpret_cast<void*>(handle);
308 for (this->current_ = this->plugins_.begin();
309 this->current_ != this->plugins_.end();
312 if ((*this->current_)->claim_file(&this->plugin_input_file_))
314 if (this->objects_.size() > handle)
315 return this->objects_[handle];
317 // If the plugin claimed the file but did not call the
318 // add_symbols callback, we need to create the Pluginobj now.
319 Pluginobj* obj = this->make_plugin_object(handle);
327 // Call the all-symbols-read handlers.
330 Plugin_manager::all_symbols_read(Workqueue* workqueue, Task* task,
331 Input_objects* input_objects,
332 Symbol_table* symtab, Layout* layout,
333 Dirsearch* dirpath, Mapfile* mapfile,
334 Task_token** last_blocker)
336 this->in_replacement_phase_ = true;
337 this->workqueue_ = workqueue;
339 this->input_objects_ = input_objects;
340 this->symtab_ = symtab;
341 this->layout_ = layout;
342 this->dirpath_ = dirpath;
343 this->mapfile_ = mapfile;
344 this->this_blocker_ = NULL;
346 for (this->current_ = this->plugins_.begin();
347 this->current_ != this->plugins_.end();
349 (*this->current_)->all_symbols_read();
351 *last_blocker = this->this_blocker_;
354 // Layout deferred objects.
357 Plugin_manager::layout_deferred_objects()
359 Deferred_layout_list::iterator obj;
361 for (obj = this->deferred_layout_objects_.begin();
362 obj != this->deferred_layout_objects_.end();
364 (*obj)->layout_deferred_sections(this->layout_);
367 // Call the cleanup handlers.
370 Plugin_manager::cleanup()
372 for (this->current_ = this->plugins_.begin();
373 this->current_ != this->plugins_.end();
375 (*this->current_)->cleanup();
378 // Make a new Pluginobj object. This is called when the plugin calls
379 // the add_symbols API.
382 Plugin_manager::make_plugin_object(unsigned int handle)
384 // Make sure we aren't asked to make an object for the same handle twice.
385 if (this->objects_.size() != handle)
388 Pluginobj* obj = make_sized_plugin_object(this->input_file_,
389 this->plugin_input_file_.offset,
390 this->plugin_input_file_.filesize);
391 this->objects_.push_back(obj);
395 // Get the input file information with an open (possibly re-opened)
399 Plugin_manager::get_input_file(unsigned int handle,
400 struct ld_plugin_input_file *file)
402 Pluginobj* obj = this->object(handle);
404 return LDPS_BAD_HANDLE;
406 obj->lock(this->task_);
407 file->name = obj->filename().c_str();
408 file->fd = obj->descriptor();
409 file->offset = obj->offset();
410 file->filesize = obj->filesize();
411 file->handle = reinterpret_cast<void*>(handle);
415 // Release the input file.
418 Plugin_manager::release_input_file(unsigned int handle)
420 Pluginobj* obj = this->object(handle);
422 return LDPS_BAD_HANDLE;
424 obj->unlock(this->task_);
428 // Add a new library path.
431 Plugin_manager::set_extra_library_path(const char *path)
433 this->extra_search_path_ = std::string(path);
437 // Add a new input file.
440 Plugin_manager::add_input_file(const char *pathname, bool is_lib)
442 Input_file_argument file(pathname,
444 ? Input_file_argument::INPUT_FILE_TYPE_LIBRARY
445 : Input_file_argument::INPUT_FILE_TYPE_FILE),
447 ? this->extra_search_path_.c_str()
451 Input_argument* input_argument = new Input_argument(file);
452 Task_token* next_blocker = new Task_token(true);
453 next_blocker->add_blocker();
454 if (this->layout_->incremental_inputs())
455 gold_error(_("input files added by plug-ins in --incremental mode not "
457 this->workqueue_->queue_soon(new Read_symbols(this->input_objects_,
468 this->this_blocker_ = next_blocker;
474 Pluginobj::Pluginobj(const std::string& name, Input_file* input_file,
475 off_t offset, off_t filesize)
476 : Object(name, input_file, false, offset),
477 nsyms_(0), syms_(NULL), symbols_(), filesize_(filesize), comdat_map_()
481 // Return TRUE if a defined symbol might be reachable from outside the
482 // universe of claimed objects.
485 is_visible_from_outside(Symbol* lsym)
487 if (lsym->in_real_elf())
489 if (parameters->options().relocatable())
491 if (parameters->options().export_dynamic() || parameters->options().shared())
492 return lsym->is_externally_visible();
496 // Get symbol resolution info.
499 Pluginobj::get_symbol_resolution_info(int nsyms, ld_plugin_symbol* syms) const
501 if (nsyms > this->nsyms_)
504 if (static_cast<size_t>(nsyms) > this->symbols_.size())
506 // We never decided to include this object. We mark all symbols as
508 gold_assert (this->symbols_.size() == 0);
509 for (int i = 0; i < nsyms; i++)
510 syms[i].resolution = LDPR_PREEMPTED_REG;
514 for (int i = 0; i < nsyms; i++)
516 ld_plugin_symbol* isym = &syms[i];
517 Symbol* lsym = this->symbols_[i];
518 ld_plugin_symbol_resolution res = LDPR_UNKNOWN;
520 if (lsym->is_undefined())
521 // The symbol remains undefined.
523 else if (isym->def == LDPK_UNDEF
524 || isym->def == LDPK_WEAKUNDEF
525 || isym->def == LDPK_COMMON)
527 // The original symbol was undefined or common.
528 if (lsym->source() != Symbol::FROM_OBJECT)
529 res = LDPR_RESOLVED_EXEC;
530 else if (lsym->object()->pluginobj() == this)
531 res = (is_visible_from_outside(lsym)
532 ? LDPR_PREVAILING_DEF
533 : LDPR_PREVAILING_DEF_IRONLY);
534 else if (lsym->object()->pluginobj() != NULL)
535 res = LDPR_RESOLVED_IR;
536 else if (lsym->object()->is_dynamic())
537 res = LDPR_RESOLVED_DYN;
539 res = LDPR_RESOLVED_EXEC;
543 // The original symbol was a definition.
544 if (lsym->source() != Symbol::FROM_OBJECT)
545 res = LDPR_PREEMPTED_REG;
546 else if (lsym->object() == static_cast<const Object*>(this))
547 res = (is_visible_from_outside(lsym)
548 ? LDPR_PREVAILING_DEF
549 : LDPR_PREVAILING_DEF_IRONLY);
551 res = (lsym->object()->pluginobj() != NULL
553 : LDPR_PREEMPTED_REG);
555 isym->resolution = res;
560 // Return TRUE if the comdat group with key COMDAT_KEY from this object
564 Pluginobj::include_comdat_group(std::string comdat_key, Layout* layout)
566 std::pair<Comdat_map::iterator, bool> ins =
567 this->comdat_map_.insert(std::make_pair(comdat_key, false));
569 // If this is the first time we've seen this comdat key, ask the
570 // layout object whether it should be included.
572 ins.first->second = layout->find_or_add_kept_section(comdat_key,
576 return ins.first->second;
579 // Class Sized_pluginobj.
581 template<int size, bool big_endian>
582 Sized_pluginobj<size, big_endian>::Sized_pluginobj(
583 const std::string& name,
584 Input_file* input_file,
587 : Pluginobj(name, input_file, offset, filesize)
591 // Read the symbols. Not used for plugin objects.
593 template<int size, bool big_endian>
595 Sized_pluginobj<size, big_endian>::do_read_symbols(Read_symbols_data*)
600 // Lay out the input sections. Not used for plugin objects.
602 template<int size, bool big_endian>
604 Sized_pluginobj<size, big_endian>::do_layout(Symbol_table*, Layout*,
610 // Add the symbols to the symbol table.
612 template<int size, bool big_endian>
614 Sized_pluginobj<size, big_endian>::do_add_symbols(Symbol_table* symtab,
618 const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
619 unsigned char symbuf[sym_size];
620 elfcpp::Sym<size, big_endian> sym(symbuf);
621 elfcpp::Sym_write<size, big_endian> osym(symbuf);
623 typedef typename elfcpp::Elf_types<size>::Elf_WXword Elf_size_type;
625 this->symbols_.resize(this->nsyms_);
627 for (int i = 0; i < this->nsyms_; ++i)
629 const struct ld_plugin_symbol *isym = &this->syms_[i];
630 const char* name = isym->name;
631 const char* ver = isym->version;
632 elfcpp::Elf_Half shndx;
636 if (name != NULL && name[0] == '\0')
638 if (ver != NULL && ver[0] == '\0')
645 bind = elfcpp::STB_WEAK;
651 bind = elfcpp::STB_GLOBAL;
659 shndx = elfcpp::SHN_ABS;
662 shndx = elfcpp::SHN_COMMON;
667 shndx = elfcpp::SHN_UNDEF;
671 switch (isym->visibility)
674 vis = elfcpp::STV_PROTECTED;
677 vis = elfcpp::STV_INTERNAL;
680 vis = elfcpp::STV_HIDDEN;
684 vis = elfcpp::STV_DEFAULT;
688 if (isym->comdat_key != NULL
689 && isym->comdat_key[0] != '\0'
690 && !this->include_comdat_group(isym->comdat_key, layout))
691 shndx = elfcpp::SHN_UNDEF;
694 osym.put_st_value(0);
695 osym.put_st_size(static_cast<Elf_size_type>(isym->size));
696 osym.put_st_info(bind, elfcpp::STT_NOTYPE);
697 osym.put_st_other(vis, 0);
698 osym.put_st_shndx(shndx);
701 symtab->add_from_pluginobj<size, big_endian>(this, name, ver, &sym);
705 template<int size, bool big_endian>
706 Archive::Should_include
707 Sized_pluginobj<size, big_endian>::do_should_include_member(
708 Symbol_table* symtab, Read_symbols_data*, std::string* why)
711 size_t tmpbuflen = 0;
713 for (int i = 0; i < this->nsyms_; ++i) {
714 const struct ld_plugin_symbol& sym = this->syms_[i];
715 const char* name = sym.name;
717 Archive::Should_include t = Archive::should_include_member(symtab, name,
721 if (t == Archive::SHOULD_INCLUDE_YES)
730 return Archive::SHOULD_INCLUDE_UNKNOWN;
733 // Get the size of a section. Not used for plugin objects.
735 template<int size, bool big_endian>
737 Sized_pluginobj<size, big_endian>::do_section_size(unsigned int)
743 // Get the name of a section. Not used for plugin objects.
745 template<int size, bool big_endian>
747 Sized_pluginobj<size, big_endian>::do_section_name(unsigned int)
750 return std::string();
753 // Return a view of the contents of a section. Not used for plugin objects.
755 template<int size, bool big_endian>
757 Sized_pluginobj<size, big_endian>::do_section_contents(unsigned int)
765 // Return section flags. Not used for plugin objects.
767 template<int size, bool big_endian>
769 Sized_pluginobj<size, big_endian>::do_section_flags(unsigned int)
775 // Return section entsize. Not used for plugin objects.
777 template<int size, bool big_endian>
779 Sized_pluginobj<size, big_endian>::do_section_entsize(unsigned int)
785 // Return section address. Not used for plugin objects.
787 template<int size, bool big_endian>
789 Sized_pluginobj<size, big_endian>::do_section_address(unsigned int)
795 // Return section type. Not used for plugin objects.
797 template<int size, bool big_endian>
799 Sized_pluginobj<size, big_endian>::do_section_type(unsigned int)
805 // Return the section link field. Not used for plugin objects.
807 template<int size, bool big_endian>
809 Sized_pluginobj<size, big_endian>::do_section_link(unsigned int)
815 // Return the section link field. Not used for plugin objects.
817 template<int size, bool big_endian>
819 Sized_pluginobj<size, big_endian>::do_section_info(unsigned int)
825 // Return the section alignment. Not used for plugin objects.
827 template<int size, bool big_endian>
829 Sized_pluginobj<size, big_endian>::do_section_addralign(unsigned int)
835 // Return the Xindex structure to use. Not used for plugin objects.
837 template<int size, bool big_endian>
839 Sized_pluginobj<size, big_endian>::do_initialize_xindex()
845 // Get symbol counts. Not used for plugin objects.
847 template<int size, bool big_endian>
849 Sized_pluginobj<size, big_endian>::do_get_global_symbol_counts(const Symbol_table*,
850 size_t*, size_t*) const
855 // Get symbols. Not used for plugin objects.
857 template<int size, bool big_endian>
858 const Object::Symbols*
859 Sized_pluginobj<size, big_endian>::do_get_global_symbols() const
864 // Class Plugin_finish. This task runs after all replacement files have
865 // been added. It calls each plugin's cleanup handler.
867 class Plugin_finish : public Task
870 Plugin_finish(Task_token* this_blocker, Task_token* next_blocker)
871 : this_blocker_(this_blocker), next_blocker_(next_blocker)
876 if (this->this_blocker_ != NULL)
877 delete this->this_blocker_;
883 if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
884 return this->this_blocker_;
889 locks(Task_locker* tl)
890 { tl->add(this, this->next_blocker_); }
895 Plugin_manager* plugins = parameters->options().plugins();
896 gold_assert(plugins != NULL);
902 { return "Plugin_finish"; }
905 Task_token* this_blocker_;
906 Task_token* next_blocker_;
909 // Class Plugin_hook.
911 Plugin_hook::~Plugin_hook()
915 // Return whether a Plugin_hook task is runnable.
918 Plugin_hook::is_runnable()
920 if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
921 return this->this_blocker_;
925 // Return a Task_locker for a Plugin_hook task. We don't need any
929 Plugin_hook::locks(Task_locker*)
933 // Run the "all symbols read" plugin hook.
936 Plugin_hook::run(Workqueue* workqueue)
938 gold_assert(this->options_.has_plugins());
940 if (parameters->options().entry())
941 start_sym = this->symtab_->lookup(parameters->options().entry());
943 start_sym = this->symtab_->lookup("_start");
944 if (start_sym != NULL)
945 start_sym->set_in_real_elf();
947 this->options_.plugins()->all_symbols_read(workqueue,
949 this->input_objects_,
954 &this->this_blocker_);
955 workqueue->queue_soon(new Plugin_finish(this->this_blocker_,
956 this->next_blocker_));
959 // The C interface routines called by the plugins.
961 #ifdef ENABLE_PLUGINS
963 // Register a claim-file handler.
965 static enum ld_plugin_status
966 register_claim_file(ld_plugin_claim_file_handler handler)
968 gold_assert(parameters->options().has_plugins());
969 parameters->options().plugins()->set_claim_file_handler(handler);
973 // Register an all-symbols-read handler.
975 static enum ld_plugin_status
976 register_all_symbols_read(ld_plugin_all_symbols_read_handler handler)
978 gold_assert(parameters->options().has_plugins());
979 parameters->options().plugins()->set_all_symbols_read_handler(handler);
983 // Register a cleanup handler.
985 static enum ld_plugin_status
986 register_cleanup(ld_plugin_cleanup_handler handler)
988 gold_assert(parameters->options().has_plugins());
989 parameters->options().plugins()->set_cleanup_handler(handler);
993 // Add symbols from a plugin-claimed input file.
995 static enum ld_plugin_status
996 add_symbols(void* handle, int nsyms, const ld_plugin_symbol *syms)
998 gold_assert(parameters->options().has_plugins());
999 Pluginobj* obj = parameters->options().plugins()->make_plugin_object(
1000 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle)));
1003 obj->store_incoming_symbols(nsyms, syms);
1007 // Get the input file information with an open (possibly re-opened)
1010 static enum ld_plugin_status
1011 get_input_file(const void *handle, struct ld_plugin_input_file *file)
1013 gold_assert(parameters->options().has_plugins());
1014 unsigned int obj_index =
1015 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle));
1016 return parameters->options().plugins()->get_input_file(obj_index, file);
1019 // Release the input file.
1021 static enum ld_plugin_status
1022 release_input_file(const void *handle)
1024 gold_assert(parameters->options().has_plugins());
1025 unsigned int obj_index =
1026 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle));
1027 return parameters->options().plugins()->release_input_file(obj_index);
1030 // Get the symbol resolution info for a plugin-claimed input file.
1032 static enum ld_plugin_status
1033 get_symbols(const void * handle, int nsyms, ld_plugin_symbol* syms)
1035 gold_assert(parameters->options().has_plugins());
1036 Pluginobj* obj = parameters->options().plugins()->object(
1037 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle)));
1040 return obj->get_symbol_resolution_info(nsyms, syms);
1043 // Add a new (real) input file generated by a plugin.
1045 static enum ld_plugin_status
1046 add_input_file(const char *pathname)
1048 gold_assert(parameters->options().has_plugins());
1049 return parameters->options().plugins()->add_input_file(pathname, false);
1052 // Add a new (real) library required by a plugin.
1054 static enum ld_plugin_status
1055 add_input_library(const char *pathname)
1057 gold_assert(parameters->options().has_plugins());
1058 return parameters->options().plugins()->add_input_file(pathname, true);
1061 // Set the extra library path to be used by libraries added via
1062 // add_input_library
1064 static enum ld_plugin_status
1065 set_extra_library_path(const char *path)
1067 gold_assert(parameters->options().has_plugins());
1068 return parameters->options().plugins()->set_extra_library_path(path);
1071 // Issue a diagnostic message from a plugin.
1073 static enum ld_plugin_status
1074 message(int level, const char * format, ...)
1077 va_start(args, format);
1082 parameters->errors()->info(format, args);
1085 parameters->errors()->warning(format, args);
1089 parameters->errors()->error(format, args);
1092 parameters->errors()->fatal(format, args);
1100 #endif // ENABLE_PLUGINS
1102 // Allocate a Pluginobj object of the appropriate size and endianness.
1105 make_sized_plugin_object(Input_file* input_file, off_t offset, off_t filesize)
1107 Pluginobj* obj = NULL;
1109 parameters_force_valid_target();
1110 const Target& target(parameters->target());
1112 if (target.get_size() == 32)
1114 if (target.is_big_endian())
1115 #ifdef HAVE_TARGET_32_BIG
1116 obj = new Sized_pluginobj<32, true>(input_file->filename(),
1117 input_file, offset, filesize);
1119 gold_error(_("%s: not configured to support "
1120 "32-bit big-endian object"),
1121 input_file->filename().c_str());
1124 #ifdef HAVE_TARGET_32_LITTLE
1125 obj = new Sized_pluginobj<32, false>(input_file->filename(),
1126 input_file, offset, filesize);
1128 gold_error(_("%s: not configured to support "
1129 "32-bit little-endian object"),
1130 input_file->filename().c_str());
1133 else if (target.get_size() == 64)
1135 if (target.is_big_endian())
1136 #ifdef HAVE_TARGET_64_BIG
1137 obj = new Sized_pluginobj<64, true>(input_file->filename(),
1138 input_file, offset, filesize);
1140 gold_error(_("%s: not configured to support "
1141 "64-bit big-endian object"),
1142 input_file->filename().c_str());
1145 #ifdef HAVE_TARGET_64_LITTLE
1146 obj = new Sized_pluginobj<64, false>(input_file->filename(),
1147 input_file, offset, filesize);
1149 gold_error(_("%s: not configured to support "
1150 "64-bit little-endian object"),
1151 input_file->filename().c_str());
1155 gold_assert(obj != NULL);
1159 } // End namespace gold.