+Read_member::locks(Task_locker* tl)
+{
+ tl->add(this, this->next_blocker_);
+}
+
+// Run a Read_member task.
+
+void
+Read_member::run(Workqueue*)
+{
+ // This task doesn't need to do anything for now. The Read_symbols task
+ // that is queued for the archive library will cause the archive to be
+ // processed from scratch.
+}
+
+// Class Check_script.
+
+Check_script::~Check_script()
+{
+ if (this->this_blocker_ != NULL)
+ delete this->this_blocker_;
+ // next_blocker_ is deleted by the task associated with the next
+ // input file.
+}
+
+// Return whether a Check_script task is runnable.
+
+Task_token*
+Check_script::is_runnable()
+{
+ if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
+ return this->this_blocker_;
+ return NULL;
+}
+
+void
+Check_script::locks(Task_locker* tl)
+{
+ tl->add(this, this->next_blocker_);
+}
+
+// Run a Check_script task.
+
+void
+Check_script::run(Workqueue*)
+{
+ Incremental_inputs* incremental_inputs = this->layout_->incremental_inputs();
+ gold_assert(incremental_inputs != NULL);
+ unsigned int arg_serial = this->input_reader_->arg_serial();
+ Script_info* script_info =
+ this->ibase_->get_script_info(this->input_file_index_);
+ Timespec mtime = this->input_reader_->get_mtime();
+ incremental_inputs->report_script(script_info, arg_serial, mtime);
+}
+
+// Class Check_library.
+
+Check_library::~Check_library()
+{
+ if (this->this_blocker_ != NULL)
+ delete this->this_blocker_;
+ // next_blocker_ is deleted by the task associated with the next
+ // input file.
+}
+
+// Return whether a Check_library task is runnable.
+
+Task_token*
+Check_library::is_runnable()
+{
+ if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
+ return this->this_blocker_;
+ return NULL;
+}
+
+void
+Check_library::locks(Task_locker* tl)
+{
+ tl->add(this, this->next_blocker_);
+}
+
+// Run a Check_library task.
+
+void
+Check_library::run(Workqueue*)
+{
+ Incremental_inputs* incremental_inputs = this->layout_->incremental_inputs();
+ gold_assert(incremental_inputs != NULL);
+ Incremental_library* lib = this->ibase_->get_library(this->input_file_index_);
+ gold_assert(lib != NULL);
+ lib->copy_unused_symbols();
+ // FIXME: Check that unused symbols remain unused.
+ if (!lib->is_reported())
+ {
+ unsigned int lib_serial = lib->arg_serial();
+ unsigned int lib_index = lib->input_file_index();
+ Script_info* script_info = this->ibase_->get_script_info(lib_index);
+ incremental_inputs->report_archive_begin(lib, lib_serial, script_info);
+ }
+ incremental_inputs->report_archive_end(lib);
+}
+
+// Class Input_group.
+
+// When we delete an Input_group we can delete the archive
+// information.
+
+Input_group::~Input_group()
+{
+ for (Input_group::const_iterator p = this->begin();
+ p != this->end();
+ ++p)
+ delete *p;
+}
+
+// Class Start_group.
+
+Start_group::~Start_group()
+{
+ if (this->this_blocker_ != NULL)
+ delete this->this_blocker_;
+ // next_blocker_ is deleted by the task associated with the first
+ // file in the group.
+}
+
+// We need to wait for THIS_BLOCKER_ and unblock NEXT_BLOCKER_.
+
+Task_token*
+Start_group::is_runnable()
+{
+ if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
+ return this->this_blocker_;
+ return NULL;
+}
+
+void
+Start_group::locks(Task_locker* tl)
+{
+ tl->add(this, this->next_blocker_);
+}
+
+// Store the number of undefined symbols we see now.
+
+void
+Start_group::run(Workqueue*)
+{
+ this->finish_group_->set_saw_undefined(this->symtab_->saw_undefined());
+}
+
+// Class Finish_group.
+
+Finish_group::~Finish_group()
+{
+ if (this->this_blocker_ != NULL)
+ delete this->this_blocker_;
+ // next_blocker_ is deleted by the task associated with the next
+ // input file following the group.
+}
+
+// We need to wait for THIS_BLOCKER_ and unblock NEXT_BLOCKER_.
+
+Task_token*
+Finish_group::is_runnable()
+{
+ if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
+ return this->this_blocker_;
+ return NULL;
+}
+
+void
+Finish_group::locks(Task_locker* tl)
+{
+ tl->add(this, this->next_blocker_);
+}
+
+// Loop over the archives until there are no new undefined symbols.
+
+void
+Finish_group::run(Workqueue*)
+{
+ size_t saw_undefined = this->saw_undefined_;
+ while (saw_undefined != this->symtab_->saw_undefined())
+ {
+ saw_undefined = this->symtab_->saw_undefined();
+
+ for (Input_group::const_iterator p = this->input_group_->begin();
+ p != this->input_group_->end();
+ ++p)
+ {
+ Task_lock_obj<Archive> tl(this, *p);
+
+ (*p)->add_symbols(this->symtab_, this->layout_,
+ this->input_objects_, this->mapfile_);
+ }
+ }
+
+ // Now that we're done with the archives, record the incremental
+ // layout information.
+ for (Input_group::const_iterator p = this->input_group_->begin();
+ p != this->input_group_->end();
+ ++p)
+ {
+ // For an incremental link, finish recording the layout information.
+ Incremental_inputs* incremental_inputs =
+ this->layout_->incremental_inputs();
+ if (incremental_inputs != NULL)
+ incremental_inputs->report_archive_end(*p);
+ }
+
+ if (parameters->options().has_plugins())
+ parameters->options().plugins()->save_input_group(this->input_group_);
+ else
+ delete this->input_group_;
+}
+
+// Class Read_script
+
+Read_script::~Read_script()
+{
+ if (this->this_blocker_ != NULL)
+ delete this->this_blocker_;
+ // next_blocker_ is deleted by the task associated with the next
+ // input file.
+}
+
+// We are blocked by this_blocker_.
+
+Task_token*
+Read_script::is_runnable()
+{
+ if (this->this_blocker_ != NULL && this->this_blocker_->is_blocked())
+ return this->this_blocker_;
+ return NULL;
+}
+
+// We don't unlock next_blocker_ here. If the script names any input
+// files, then the last file will be responsible for unlocking it.
+
+void
+Read_script::locks(Task_locker*)
+{
+}
+
+// Read the script, if it is a script.
+
+void
+Read_script::run(Workqueue* workqueue)
+{
+ bool used_next_blocker;
+ if (!read_input_script(workqueue, this->symtab_, this->layout_,
+ this->dirpath_, this->dirindex_, this->input_objects_,
+ this->mapfile_, this->input_group_,
+ this->input_argument_, this->input_file_,
+ this->next_blocker_, &used_next_blocker))
+ {
+ // Here we have to handle any other input file types we need.
+ gold_error(_("%s: not an object or archive"),
+ this->input_file_->file().filename().c_str());
+ }
+
+ if (!used_next_blocker)
+ {
+ // Queue up a task to unlock next_blocker. We can't just unlock
+ // it here, as we don't hold the workqueue lock.
+ workqueue->queue_soon(new Unblock_token(NULL, this->next_blocker_));
+ }
+}
+
+// Return a debugging name for a Read_script task.
+
+std::string
+Read_script::get_name() const