* cref.cc: New file.

	* cref.h: New file.
	* options.h (class General_options): Add --print-symbol-counts.
	* main.cc (main): Issue defined symbol report if requested.
	* archive.cc (Archive::interpret_header): Make into a const member
	function.
	(Archive::add_symbols): Call Input_objects::archive_start and
	archive_stop.
	(Archive::const_iterator): Define new class.
	(Archive::begin, Archive::end): New functions.
	(Archive::include_all_members): Rewrite to use iterator.
	(Archive::count_members): New function.
	* archive.h (class Archive): Update declarations.
	(Archive::filename): New function.
	* object.cc: Include "cref.h".
	(Sized_relobj::Sized_relobj): Initialize defined_count_.
	(Sized_relobj::do_get_global_symbol_counts): New function.
	(Input_objects::add_object): Add object to cross-referencer.
	(Input_objects::archive_start): New function.
	(Input_objects::archive_stop): New function.
	(Input_objects::print_symbol_counts): New function.
	* object.h: Declare Cref and Archive.
	(Object::get_global_symbol_counts): New function.
	(Object::do_get_global_symbol_counts): New pure virtual function.
	(class Sized_relobj): Add defined_count_ field.  Update
	declarations.
	(class Input_objects): Add cref_ field.  Update constructor.
	Update declarations.
	* dynobj.cc (Sized_dynobj::Sized_dynobj): Initialize symbols_ and
	defined_count_.
	(Sized_dynobj::do_add_symbols): Allocate symbols_ if printing
	symbol counts.
	(Sized_dynobj::do_get_global_symbol_counts): New function.
	* dynobj.h (class Sized_dynobj): Add fields symbols_ and
	defined_count_.  Update declarations.  Define Symbols typedef.
	* symtab.cc (Symbol_table::add_from_relobj): Add defined
	parameter.  Change all callers.
	(Symbol_table::add_from_dynobj): Add sympointers and defined
	parameters.  Change all callers.
	* symtab.h (class Symbol_table): Update declarations.
	* Makefile.am (CCFILES): Add cref.cc.
	(HFILES): Add cref.h.
	* Makefile.in: Rebuild.

1 files changed, 73 insertions, 0 deletions

diff --git a/gold/cref.h b/gold/cref.h
new file mode 100644
index 00000000000..3da5d3ad326
--- /dev/null
+++ b/gold/cref.h
@@ -0,0 +1,73 @@
+// cref.h -- cross reference reports for gold   -*- C++ -*-
+
+// Copyright 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_CREF_H
+#define GOLD_CREF_H
+
+namespace gold
+{
+
+class Object;
+class Archive;
+class Cref_inputs;
+
+// This class collects data for cross reference and other reporting.
+
+class Cref
+{
+ public:
+  Cref()
+    : inputs_(NULL)
+  { }
+
+  // Record an input object file.  This is called for each object file
+  // in the order in which it is processed.
+  void
+  add_object(Object*);
+
+  // Start recording an input archive.  This is called for each
+  // archive in the order in which it appears on the command line.  A
+  // call to add_archive_start precedes calls to add_object for each
+  // object included from the archive.
+  void
+  add_archive_start(Archive*);
+
+  // Finish recording an input archive.  This is called after
+  // add_object has been called for each object included from the
+  // archive.
+  void
+  add_archive_stop(Archive*);
+
+  // Print symbol counts.
+  void
+  print_symbol_counts(const Symbol_table*) const;
+
+ private:
+  void
+  need_inputs();
+
+  Cref_inputs* inputs_;
+};
+
+} // End namespace gold.
+
+#endif // !defined(GOLD_CREF_H)