1 // plugin.cc -- plugin manager for gold -*- C++ -*-
3 // Copyright 2008, 2009 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.
31 #include "parameters.h"
47 // The linker's exported interfaces.
52 static enum ld_plugin_status
53 register_claim_file(ld_plugin_claim_file_handler handler);
55 static enum ld_plugin_status
56 register_all_symbols_read(ld_plugin_all_symbols_read_handler handler);
58 static enum ld_plugin_status
59 register_cleanup(ld_plugin_cleanup_handler handler);
61 static enum ld_plugin_status
62 add_symbols(void *handle, int nsyms, const struct ld_plugin_symbol *syms);
64 static enum ld_plugin_status
65 get_input_file(const void *handle, struct ld_plugin_input_file *file);
67 static enum ld_plugin_status
68 release_input_file(const void *handle);
70 static enum ld_plugin_status
71 get_symbols(const void *handle, int nsyms, struct ld_plugin_symbol *syms);
73 static enum ld_plugin_status
74 add_input_file(char *pathname);
76 static enum ld_plugin_status
77 add_input_library(char *pathname);
79 static enum ld_plugin_status
80 message(int level, const char *format, ...);
84 #endif // ENABLE_PLUGINS
86 static Pluginobj* make_sized_plugin_object(Input_file* input_file,
87 off_t offset, off_t filesize);
91 // Load one plugin library.
97 // Load the plugin library.
98 // FIXME: Look for the library in standard locations.
99 this->handle_ = dlopen(this->filename_.c_str(), RTLD_NOW);
100 if (this->handle_ == NULL)
102 gold_error(_("%s: could not load plugin library"),
103 this->filename_.c_str());
107 // Find the plugin's onload entry point.
108 ld_plugin_onload onload = reinterpret_cast<ld_plugin_onload>
109 (dlsym(this->handle_, "onload"));
112 gold_error(_("%s: could not find onload entry point"),
113 this->filename_.c_str());
117 // Get the linker's version number.
118 const char* ver = get_version_string();
121 sscanf(ver, "%d.%d", &major, &minor);
123 // Allocate and populate a transfer vector.
124 const int tv_fixed_size = 14;
125 int tv_size = this->args_.size() + tv_fixed_size;
126 ld_plugin_tv *tv = new ld_plugin_tv[tv_size];
128 // Put LDPT_MESSAGE at the front of the list so the plugin can use it
129 // while processing subsequent entries.
131 tv[i].tv_tag = LDPT_MESSAGE;
132 tv[i].tv_u.tv_message = message;
135 tv[i].tv_tag = LDPT_API_VERSION;
136 tv[i].tv_u.tv_val = LD_PLUGIN_API_VERSION;
139 tv[i].tv_tag = LDPT_GOLD_VERSION;
140 tv[i].tv_u.tv_val = major * 100 + minor;
143 tv[i].tv_tag = LDPT_LINKER_OUTPUT;
144 if (parameters->options().relocatable())
145 tv[i].tv_u.tv_val = LDPO_REL;
146 else if (parameters->options().shared())
147 tv[i].tv_u.tv_val = LDPO_DYN;
149 tv[i].tv_u.tv_val = LDPO_EXEC;
151 for (unsigned int j = 0; j < this->args_.size(); ++j)
154 tv[i].tv_tag = LDPT_OPTION;
155 tv[i].tv_u.tv_string = this->args_[j].c_str();
159 tv[i].tv_tag = LDPT_REGISTER_CLAIM_FILE_HOOK;
160 tv[i].tv_u.tv_register_claim_file = register_claim_file;
163 tv[i].tv_tag = LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK;
164 tv[i].tv_u.tv_register_all_symbols_read = register_all_symbols_read;
167 tv[i].tv_tag = LDPT_REGISTER_CLEANUP_HOOK;
168 tv[i].tv_u.tv_register_cleanup = register_cleanup;
171 tv[i].tv_tag = LDPT_ADD_SYMBOLS;
172 tv[i].tv_u.tv_add_symbols = add_symbols;
175 tv[i].tv_tag = LDPT_GET_INPUT_FILE;
176 tv[i].tv_u.tv_get_input_file = get_input_file;
179 tv[i].tv_tag = LDPT_RELEASE_INPUT_FILE;
180 tv[i].tv_u.tv_release_input_file = release_input_file;
183 tv[i].tv_tag = LDPT_GET_SYMBOLS;
184 tv[i].tv_u.tv_get_symbols = get_symbols;
187 tv[i].tv_tag = LDPT_ADD_INPUT_FILE;
188 tv[i].tv_u.tv_add_input_file = add_input_file;
191 tv[i].tv_tag = LDPT_ADD_INPUT_LIBRARY;
192 tv[i].tv_u.tv_add_input_library = add_input_library;
195 tv[i].tv_tag = LDPT_NULL;
196 tv[i].tv_u.tv_val = 0;
198 gold_assert(i == tv_size - 1);
200 // Call the onload entry point.
204 #endif // ENABLE_PLUGINS
207 // Call the plugin claim-file handler.
210 Plugin::claim_file(struct ld_plugin_input_file *plugin_input_file)
214 if (this->claim_file_handler_ != NULL)
216 (*this->claim_file_handler_)(plugin_input_file, &claimed);
223 // Call the all-symbols-read handler.
226 Plugin::all_symbols_read()
228 if (this->all_symbols_read_handler_ != NULL)
229 (*this->all_symbols_read_handler_)();
232 // Call the cleanup handler.
237 if (this->cleanup_handler_ != NULL)
238 (*this->cleanup_handler_)();
241 // Plugin_manager methods.
243 Plugin_manager::~Plugin_manager()
245 for (Plugin_list::iterator p = this->plugins_.begin();
246 p != this->plugins_.end();
249 this->plugins_.clear();
250 for (Object_list::iterator obj = this->objects_.begin();
251 obj != this->objects_.end();
254 this->objects_.clear();
257 // Load all plugin libraries.
260 Plugin_manager::load_plugins()
262 for (this->current_ = this->plugins_.begin();
263 this->current_ != this->plugins_.end();
265 (*this->current_)->load();
268 // Call the plugin claim-file handlers in turn to see if any claim the file.
271 Plugin_manager::claim_file(Input_file* input_file, off_t offset,
274 if (this->in_replacement_phase_)
277 unsigned int handle = this->objects_.size();
278 this->input_file_ = input_file;
279 this->plugin_input_file_.name = input_file->filename().c_str();
280 this->plugin_input_file_.fd = input_file->file().descriptor();
281 this->plugin_input_file_.offset = offset;
282 this->plugin_input_file_.filesize = filesize;
283 this->plugin_input_file_.handle = reinterpret_cast<void*>(handle);
285 for (this->current_ = this->plugins_.begin();
286 this->current_ != this->plugins_.end();
289 if ((*this->current_)->claim_file(&this->plugin_input_file_))
291 if (this->objects_.size() > handle)
292 return this->objects_[handle];
294 // If the plugin claimed the file but did not call the
295 // add_symbols callback, we need to create the Pluginobj now.
296 Pluginobj* obj = this->make_plugin_object(handle);
304 // Call the all-symbols-read handlers.
307 Plugin_manager::all_symbols_read(Workqueue* workqueue, Task* task,
308 Input_objects* input_objects,
309 Symbol_table* symtab, Layout* layout,
310 Dirsearch* dirpath, Mapfile* mapfile,
311 Task_token** last_blocker)
313 this->in_replacement_phase_ = true;
314 this->workqueue_ = workqueue;
316 this->input_objects_ = input_objects;
317 this->symtab_ = symtab;
318 this->layout_ = layout;
319 this->dirpath_ = dirpath;
320 this->mapfile_ = mapfile;
321 this->this_blocker_ = NULL;
323 for (this->current_ = this->plugins_.begin();
324 this->current_ != this->plugins_.end();
326 (*this->current_)->all_symbols_read();
328 *last_blocker = this->this_blocker_;
331 // Layout deferred objects.
334 Plugin_manager::layout_deferred_objects()
336 Deferred_layout_list::iterator obj;
338 for (obj = this->deferred_layout_objects_.begin();
339 obj != this->deferred_layout_objects_.end();
341 (*obj)->layout_deferred_sections(this->layout_);
344 // Call the cleanup handlers.
347 Plugin_manager::cleanup()
349 if (this->cleanup_done_)
351 for (this->current_ = this->plugins_.begin();
352 this->current_ != this->plugins_.end();
354 (*this->current_)->cleanup();
355 this->cleanup_done_ = true;
358 // Make a new Pluginobj object. This is called when the plugin calls
359 // the add_symbols API.
362 Plugin_manager::make_plugin_object(unsigned int handle)
364 // Make sure we aren't asked to make an object for the same handle twice.
365 if (this->objects_.size() != handle)
368 Pluginobj* obj = make_sized_plugin_object(this->input_file_,
369 this->plugin_input_file_.offset,
370 this->plugin_input_file_.filesize);
371 this->objects_.push_back(obj);
375 // Get the input file information with an open (possibly re-opened)
379 Plugin_manager::get_input_file(unsigned int handle,
380 struct ld_plugin_input_file *file)
382 Pluginobj* obj = this->object(handle);
384 return LDPS_BAD_HANDLE;
386 obj->lock(this->task_);
387 file->name = obj->filename().c_str();
388 file->fd = obj->descriptor();
389 file->offset = obj->offset();
390 file->filesize = obj->filesize();
391 file->handle = reinterpret_cast<void*>(handle);
395 // Release the input file.
398 Plugin_manager::release_input_file(unsigned int handle)
400 Pluginobj* obj = this->object(handle);
402 return LDPS_BAD_HANDLE;
404 obj->unlock(this->task_);
408 // Add a new input file.
411 Plugin_manager::add_input_file(char *pathname, bool is_lib)
413 Input_file_argument file(pathname, is_lib, "", false, this->options_);
414 Input_argument* input_argument = new Input_argument(file);
415 Task_token* next_blocker = new Task_token(true);
416 next_blocker->add_blocker();
417 if (this->layout_->incremental_inputs())
418 gold_error(_("Input files added by plug-ins in --incremental mode not "
419 "supported yet.\n"));
420 this->workqueue_->queue_soon(new Read_symbols(this->input_objects_,
430 this->this_blocker_ = next_blocker;
436 Pluginobj::Pluginobj(const std::string& name, Input_file* input_file,
437 off_t offset, off_t filesize)
438 : Object(name, input_file, false, offset),
439 nsyms_(0), syms_(NULL), symbols_(), filesize_(filesize), comdat_map_()
443 // Return TRUE if a defined symbol might be reachable from outside the
444 // universe of claimed objects.
447 is_visible_from_outside(Symbol* lsym)
449 if (lsym->in_real_elf())
451 if (parameters->options().relocatable())
453 if (parameters->options().export_dynamic() || parameters->options().shared())
454 return lsym->is_externally_visible();
458 // Get symbol resolution info.
461 Pluginobj::get_symbol_resolution_info(int nsyms, ld_plugin_symbol* syms) const
463 if (nsyms > this->nsyms_)
465 for (int i = 0; i < nsyms; i++)
467 ld_plugin_symbol* isym = &syms[i];
468 Symbol* lsym = this->symbols_[i];
469 ld_plugin_symbol_resolution res = LDPR_UNKNOWN;
471 if (lsym->is_undefined())
472 // The symbol remains undefined.
474 else if (isym->def == LDPK_UNDEF
475 || isym->def == LDPK_WEAKUNDEF
476 || isym->def == LDPK_COMMON)
478 // The original symbol was undefined or common.
479 if (lsym->source() != Symbol::FROM_OBJECT)
480 res = LDPR_RESOLVED_EXEC;
481 else if (lsym->object()->pluginobj() != NULL)
482 res = LDPR_RESOLVED_IR;
483 else if (lsym->object()->is_dynamic())
484 res = LDPR_RESOLVED_DYN;
486 res = LDPR_RESOLVED_EXEC;
490 // The original symbol was a definition.
491 if (lsym->source() != Symbol::FROM_OBJECT)
492 res = LDPR_PREEMPTED_REG;
493 else if (lsym->object() == static_cast<const Object*>(this))
494 res = (is_visible_from_outside(lsym)
495 ? LDPR_PREVAILING_DEF
496 : LDPR_PREVAILING_DEF_IRONLY);
498 res = (lsym->object()->pluginobj() != NULL
500 : LDPR_PREEMPTED_REG);
502 isym->resolution = res;
507 // Return TRUE if the comdat group with key COMDAT_KEY from this object
511 Pluginobj::include_comdat_group(std::string comdat_key, Layout* layout)
513 std::pair<Comdat_map::iterator, bool> ins =
514 this->comdat_map_.insert(std::make_pair(comdat_key, false));
516 // If this is the first time we've seen this comdat key, ask the
517 // layout object whether it should be included.
519 ins.first->second = layout->find_or_add_kept_section(comdat_key,
523 return ins.first->second;
526 // Class Sized_pluginobj.
528 template<int size, bool big_endian>
529 Sized_pluginobj<size, big_endian>::Sized_pluginobj(
530 const std::string& name,
531 Input_file* input_file,
534 : Pluginobj(name, input_file, offset, filesize)
538 // Read the symbols. Not used for plugin objects.
540 template<int size, bool big_endian>
542 Sized_pluginobj<size, big_endian>::do_read_symbols(Read_symbols_data*)
547 // Lay out the input sections. Not used for plugin objects.
549 template<int size, bool big_endian>
551 Sized_pluginobj<size, big_endian>::do_layout(Symbol_table*, Layout*,
557 // Add the symbols to the symbol table.
559 template<int size, bool big_endian>
561 Sized_pluginobj<size, big_endian>::do_add_symbols(Symbol_table* symtab,
565 const int sym_size = elfcpp::Elf_sizes<size>::sym_size;
566 unsigned char symbuf[sym_size];
567 elfcpp::Sym<size, big_endian> sym(symbuf);
568 elfcpp::Sym_write<size, big_endian> osym(symbuf);
570 typedef typename elfcpp::Elf_types<size>::Elf_WXword Elf_size_type;
572 this->symbols_.resize(this->nsyms_);
574 for (int i = 0; i < this->nsyms_; ++i)
576 const struct ld_plugin_symbol *isym = &this->syms_[i];
577 const char* name = isym->name;
578 const char* ver = isym->version;
579 elfcpp::Elf_Half shndx;
583 if (name != NULL && name[0] == '\0')
585 if (ver != NULL && ver[0] == '\0')
592 bind = elfcpp::STB_WEAK;
598 bind = elfcpp::STB_GLOBAL;
606 shndx = elfcpp::SHN_ABS;
609 shndx = elfcpp::SHN_COMMON;
614 shndx = elfcpp::SHN_UNDEF;
618 switch (isym->visibility)
621 vis = elfcpp::STV_DEFAULT;
624 vis = elfcpp::STV_DEFAULT;
627 vis = elfcpp::STV_DEFAULT;
631 vis = elfcpp::STV_DEFAULT;
635 if (isym->comdat_key != NULL
636 && isym->comdat_key[0] != '\0'
637 && !this->include_comdat_group(isym->comdat_key, layout))
638 shndx = elfcpp::SHN_UNDEF;
641 osym.put_st_value(0);
642 osym.put_st_size(static_cast<Elf_size_type>(isym->size));
643 osym.put_st_info(bind, elfcpp::STT_NOTYPE);
644 osym.put_st_other(vis, 0);
645 osym.put_st_shndx(shndx);
648 symtab->add_from_pluginobj<size, big_endian>(this, name, ver, &sym);
652 // Get the size of a section. Not used for plugin objects.
654 template<int size, bool big_endian>
656 Sized_pluginobj<size, big_endian>::do_section_size(unsigned int)
662 // Get the name of a section. Not used for plugin objects.
664 template<int size, bool big_endian>
666 Sized_pluginobj<size, big_endian>::do_section_name(unsigned int)
669 return std::string();
672 // Return a view of the contents of a section. Not used for plugin objects.
674 template<int size, bool big_endian>
676 Sized_pluginobj<size, big_endian>::do_section_contents(unsigned int)
684 // Return section flags. Not used for plugin objects.
686 template<int size, bool big_endian>
688 Sized_pluginobj<size, big_endian>::do_section_flags(unsigned int)
694 // Return section entsize. Not used for plugin objects.
696 template<int size, bool big_endian>
698 Sized_pluginobj<size, big_endian>::do_section_entsize(unsigned int)
704 // Return section address. Not used for plugin objects.
706 template<int size, bool big_endian>
708 Sized_pluginobj<size, big_endian>::do_section_address(unsigned int)
714 // Return section type. Not used for plugin objects.
716 template<int size, bool big_endian>
718 Sized_pluginobj<size, big_endian>::do_section_type(unsigned int)
724 // Return the section link field. Not used for plugin objects.
726 template<int size, bool big_endian>
728 Sized_pluginobj<size, big_endian>::do_section_link(unsigned int)
734 // Return the section link field. Not used for plugin objects.
736 template<int size, bool big_endian>
738 Sized_pluginobj<size, big_endian>::do_section_info(unsigned int)
744 // Return the section alignment. Not used for plugin objects.
746 template<int size, bool big_endian>
748 Sized_pluginobj<size, big_endian>::do_section_addralign(unsigned int)
754 // Return the Xindex structure to use. Not used for plugin objects.
756 template<int size, bool big_endian>
758 Sized_pluginobj<size, big_endian>::do_initialize_xindex()
764 // Get symbol counts. Not used for plugin objects.
766 template<int size, bool big_endian>
768 Sized_pluginobj<size, big_endian>::do_get_global_symbol_counts(const Symbol_table*,
769 size_t*, size_t*) const
774 // Class Plugin_finish. This task runs after all replacement files have
775 // been added. It calls each plugin's cleanup handler.
777 class Plugin_finish : public Task
780 Plugin_finish(Task_token* this_blocker, Task_token* next_blocker)
781 : this_blocker_(this_blocker), next_blocker_(next_blocker)
786 if (this->this_blocker_ != NULL)
787 delete this->this_blocker_;
793 if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
794 return this->this_blocker_;
799 locks(Task_locker* tl)
800 { tl->add(this, this->next_blocker_); }
805 Plugin_manager* plugins = parameters->options().plugins();
806 gold_assert(plugins != NULL);
812 { return "Plugin_finish"; }
815 Task_token* this_blocker_;
816 Task_token* next_blocker_;
819 // Class Plugin_hook.
821 Plugin_hook::~Plugin_hook()
825 // Return whether a Plugin_hook task is runnable.
828 Plugin_hook::is_runnable()
830 if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
831 return this->this_blocker_;
835 // Return a Task_locker for a Plugin_hook task. We don't need any
839 Plugin_hook::locks(Task_locker*)
843 // Run the "all symbols read" plugin hook.
846 Plugin_hook::run(Workqueue* workqueue)
848 gold_assert(this->options_.has_plugins());
849 this->options_.plugins()->all_symbols_read(workqueue,
851 this->input_objects_,
856 &this->this_blocker_);
857 workqueue->queue_soon(new Plugin_finish(this->this_blocker_,
858 this->next_blocker_));
861 // The C interface routines called by the plugins.
863 #ifdef ENABLE_PLUGINS
865 // Register a claim-file handler.
867 static enum ld_plugin_status
868 register_claim_file(ld_plugin_claim_file_handler handler)
870 gold_assert(parameters->options().has_plugins());
871 parameters->options().plugins()->set_claim_file_handler(handler);
875 // Register an all-symbols-read handler.
877 static enum ld_plugin_status
878 register_all_symbols_read(ld_plugin_all_symbols_read_handler handler)
880 gold_assert(parameters->options().has_plugins());
881 parameters->options().plugins()->set_all_symbols_read_handler(handler);
885 // Register a cleanup handler.
887 static enum ld_plugin_status
888 register_cleanup(ld_plugin_cleanup_handler handler)
890 gold_assert(parameters->options().has_plugins());
891 parameters->options().plugins()->set_cleanup_handler(handler);
895 // Add symbols from a plugin-claimed input file.
897 static enum ld_plugin_status
898 add_symbols(void* handle, int nsyms, const ld_plugin_symbol *syms)
900 gold_assert(parameters->options().has_plugins());
901 Pluginobj* obj = parameters->options().plugins()->make_plugin_object(
902 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle)));
905 obj->store_incoming_symbols(nsyms, syms);
909 // Get the input file information with an open (possibly re-opened)
912 static enum ld_plugin_status
913 get_input_file(const void *handle, struct ld_plugin_input_file *file)
915 gold_assert(parameters->options().has_plugins());
916 unsigned int obj_index =
917 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle));
918 return parameters->options().plugins()->get_input_file(obj_index, file);
921 // Release the input file.
923 static enum ld_plugin_status
924 release_input_file(const void *handle)
926 gold_assert(parameters->options().has_plugins());
927 unsigned int obj_index =
928 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle));
929 return parameters->options().plugins()->release_input_file(obj_index);
932 // Get the symbol resolution info for a plugin-claimed input file.
934 static enum ld_plugin_status
935 get_symbols(const void * handle, int nsyms, ld_plugin_symbol* syms)
937 gold_assert(parameters->options().has_plugins());
938 Pluginobj* obj = parameters->options().plugins()->object(
939 static_cast<unsigned int>(reinterpret_cast<intptr_t>(handle)));
942 return obj->get_symbol_resolution_info(nsyms, syms);
945 // Add a new (real) input file generated by a plugin.
947 static enum ld_plugin_status
948 add_input_file(char *pathname)
950 gold_assert(parameters->options().has_plugins());
951 return parameters->options().plugins()->add_input_file(pathname, false);
954 // Add a new (real) library required by a plugin.
956 static enum ld_plugin_status
957 add_input_library(char *pathname)
959 gold_assert(parameters->options().has_plugins());
960 return parameters->options().plugins()->add_input_file(pathname, true);
963 // Issue a diagnostic message from a plugin.
965 static enum ld_plugin_status
966 message(int level, const char * format, ...)
969 va_start(args, format);
974 parameters->errors()->info(format, args);
977 parameters->errors()->warning(format, args);
981 parameters->errors()->error(format, args);
984 parameters->errors()->fatal(format, args);
992 #endif // ENABLE_PLUGINS
994 // Allocate a Pluginobj object of the appropriate size and endianness.
997 make_sized_plugin_object(Input_file* input_file, off_t offset, off_t filesize)
999 Pluginobj* obj = NULL;
1001 parameters_force_valid_target();
1002 const Target& target(parameters->target());
1004 if (target.get_size() == 32)
1006 if (target.is_big_endian())
1007 #ifdef HAVE_TARGET_32_BIG
1008 obj = new Sized_pluginobj<32, true>(input_file->filename(),
1009 input_file, offset, filesize);
1011 gold_error(_("%s: not configured to support "
1012 "32-bit big-endian object"),
1013 input_file->filename().c_str());
1016 #ifdef HAVE_TARGET_32_LITTLE
1017 obj = new Sized_pluginobj<32, false>(input_file->filename(),
1018 input_file, offset, filesize);
1020 gold_error(_("%s: not configured to support "
1021 "32-bit little-endian object"),
1022 input_file->filename().c_str());
1025 else if (target.get_size() == 64)
1027 if (target.is_big_endian())
1028 #ifdef HAVE_TARGET_64_BIG
1029 obj = new Sized_pluginobj<64, true>(input_file->filename(),
1030 input_file, offset, filesize);
1032 gold_error(_("%s: not configured to support "
1033 "64-bit big-endian object"),
1034 input_file->filename().c_str());
1037 #ifdef HAVE_TARGET_64_LITTLE
1038 obj = new Sized_pluginobj<64, false>(input_file->filename(),
1039 input_file, offset, filesize);
1041 gold_error(_("%s: not configured to support "
1042 "64-bit little-endian object"),
1043 input_file->filename().c_str());
1047 gold_assert(obj != NULL);
1051 } // End namespace gold.