// readsyms.h -- read input file symbols for gold -*- C++ -*-
+// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
+// Written by Ian Lance Taylor <iant@google.com>.
+
+// This file is part of gold.
+
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+// MA 02110-1301, USA.
+
#ifndef GOLD_READSYMS_H
#define GOLD_READSYMS_H
+#include <vector>
+
#include "workqueue.h"
#include "object.h"
class Input_objects;
class Symbol_table;
+class Input_group;
+class Archive;
// This Task is responsible for reading the symbols from an input
// file. This also includes reading the relocations so that we can
{
public:
// DIRPATH is the list of directories to search for libraries.
- // INPUT is the file to read. THIS_BLOCKER is used to prevent the
- // associated Add_symbols task from running before the previous one
- // has completed; it will be NULL for the first task. NEXT_BLOCKER
- // is used to block the next input file from adding symbols.
+ // INPUT is the file to read. INPUT_GROUP is not NULL if we are in
+ // the middle of an input group. THIS_BLOCKER is used to prevent
+ // the associated Add_symbols task from running before the previous
+ // one has completed; it will be NULL for the first task.
+ // NEXT_BLOCKER is used to block the next input file from adding
+ // symbols.
Read_symbols(const General_options& options, Input_objects* input_objects,
- Symbol_table* symtab, Layout* layout, const Dirsearch& dirpath,
- const Input_argument& input,
- Task_token* this_blocker, Task_token* next_blocker)
+ Symbol_table* symtab, Layout* layout, Dirsearch* dirpath,
+ Mapfile* mapfile, const Input_argument* input_argument,
+ Input_group* input_group, Task_token* this_blocker,
+ Task_token* next_blocker)
: options_(options), input_objects_(input_objects), symtab_(symtab),
- layout_(layout), dirpath_(dirpath), input_(input),
+ layout_(layout), dirpath_(dirpath), mapfile_(mapfile),
+ input_argument_(input_argument), input_group_(input_group),
this_blocker_(this_blocker), next_blocker_(next_blocker)
{ }
// The standard Task methods.
- Is_runnable_type
- is_runnable(Workqueue*);
+ Task_token*
+ is_runnable();
- Task_locker*
- locks(Workqueue*);
+ void
+ locks(Task_locker*);
void
run(Workqueue*);
+ std::string
+ get_name() const;
+
private:
+ // Handle an archive group.
+ void
+ do_group(Workqueue*);
+
+ // Open and identify the file.
+ bool
+ do_read_symbols(Workqueue*);
+
const General_options& options_;
Input_objects* input_objects_;
Symbol_table* symtab_;
Layout* layout_;
- const Dirsearch& dirpath_;
- const Input_argument& input_;
+ Dirsearch* dirpath_;
+ Mapfile* mapfile_;
+ const Input_argument* input_argument_;
+ Input_group* input_group_;
Task_token* this_blocker_;
Task_token* next_blocker_;
};
// THIS_BLOCKER is used to prevent this task from running before the
// one for the previous input file. NEXT_BLOCKER is used to prevent
// the next task from running.
- Add_symbols(Symbol_table* symtab, Layout* layout, Object* object,
+ Add_symbols(Input_objects* input_objects, Symbol_table* symtab,
+ Layout* layout, Object* object,
Read_symbols_data* sd, Task_token* this_blocker,
Task_token* next_blocker)
- : symtab_(symtab), layout_(layout), object_(object), sd_(sd),
- this_blocker_(this_blocker), next_blocker_(next_blocker)
+ : input_objects_(input_objects), symtab_(symtab), layout_(layout),
+ object_(object), sd_(sd), this_blocker_(this_blocker),
+ next_blocker_(next_blocker)
{ }
~Add_symbols();
// The standard Task methods.
- Is_runnable_type
- is_runnable(Workqueue*);
+ Task_token*
+ is_runnable();
- Task_locker*
- locks(Workqueue*);
+ void
+ locks(Task_locker*);
void
run(Workqueue*);
-private:
- class Add_symbols_locker;
+ std::string
+ get_name() const
+ { return "Add_symbols " + this->object_->name(); }
+private:
+ Input_objects* input_objects_;
Symbol_table* symtab_;
Layout* layout_;
Object* object_;
Task_token* next_blocker_;
};
+// This class is used to track the archives in a group.
+
+class Input_group
+{
+ public:
+ typedef std::vector<Archive*> Archives;
+ typedef Archives::const_iterator const_iterator;
+
+ Input_group()
+ : archives_()
+ { }
+
+ // Add an archive to the group.
+ void
+ add_archive(Archive* arch)
+ { this->archives_.push_back(arch); }
+
+ // Loop over the archives in the group.
+
+ const_iterator
+ begin() const
+ { return this->archives_.begin(); }
+
+ const_iterator
+ end() const
+ { return this->archives_.end(); }
+
+ private:
+ Archives archives_;
+};
+
+// This class is used to finish up handling a group. It is just a
+// closure.
+
+class Finish_group : public Task
+{
+ public:
+ Finish_group(Input_objects* input_objects, Symbol_table* symtab,
+ Layout* layout, Mapfile* mapfile, Input_group* input_group,
+ int saw_undefined, Task_token* this_blocker,
+ Task_token* next_blocker)
+ : input_objects_(input_objects), symtab_(symtab),
+ layout_(layout), mapfile_(mapfile), input_group_(input_group),
+ saw_undefined_(saw_undefined), this_blocker_(this_blocker),
+ next_blocker_(next_blocker)
+ { }
+
+ ~Finish_group();
+
+ // The standard Task methods.
+
+ Task_token*
+ is_runnable();
+
+ void
+ locks(Task_locker*);
+
+ void
+ run(Workqueue*);
+
+ std::string
+ get_name() const
+ { return "Finish_group"; }
+
+ private:
+ Input_objects* input_objects_;
+ Symbol_table* symtab_;
+ Layout* layout_;
+ Mapfile* mapfile_;
+ Input_group* input_group_;
+ int saw_undefined_;
+ Task_token* this_blocker_;
+ Task_token* next_blocker_;
+};
+
+// This class is used to read a file which was not recognized as an
+// object or archive. It tries to read it as a linker script, using
+// the tokens to serialize with the calls to Add_symbols.
+
+class Read_script : public Task
+{
+ public:
+ Read_script(const General_options& options, Symbol_table* symtab,
+ Layout* layout, Dirsearch* dirpath, Input_objects* input_objects,
+ Mapfile* mapfile, Input_group* input_group,
+ const Input_argument* input_argument,
+ Input_file* input_file, Task_token* this_blocker,
+ Task_token* next_blocker)
+ : options_(options), symtab_(symtab), layout_(layout), dirpath_(dirpath),
+ input_objects_(input_objects), mapfile_(mapfile),
+ input_group_(input_group), input_argument_(input_argument),
+ input_file_(input_file), this_blocker_(this_blocker),
+ next_blocker_(next_blocker)
+ { }
+
+ ~Read_script();
+
+ // The standard Task methods.
+
+ Task_token*
+ is_runnable();
+
+ void
+ locks(Task_locker*);
+
+ void
+ run(Workqueue*);
+
+ std::string
+ get_name() const;
+
+ private:
+ const General_options& options_;
+ Symbol_table* symtab_;
+ Layout* layout_;
+ Dirsearch* dirpath_;
+ Input_objects* input_objects_;
+ Mapfile* mapfile_;
+ Input_group* input_group_;
+ const Input_argument* input_argument_;
+ Input_file* input_file_;
+ Task_token* this_blocker_;
+ Task_token* next_blocker_;
+};
+
} // end namespace gold
#endif // !defined(GOLD_READSYMS_H)
projects / deliverable / binutils-gdb.git / blobdiff