[binutils] Bump binutils to 2.20.1

binutils/gold/object.cc

 // object.cc -- support for an object file for linking in gold
 
-// Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+// Copyright 2006, 2007, 2008, 2009, 2010 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,
@@ skipping 2113 matching lines @@
 
   return true;
 }
 
 // For each dynamic object, record whether we've seen all of its
 // explicit dependencies.
 
 void
 Input_objects::check_dynamic_dependencies() const
 {
+  bool issued_copy_dt_needed_error = false;
   for (Dynobj_list::const_iterator p = this->dynobj_list_.begin();
        p != this->dynobj_list_.end();
        ++p)
     {
       const Dynobj::Needed& needed((*p)->needed());
       bool found_all = true;
-      for (Dynobj::Needed::const_iterator pneeded = needed.begin();
-           pneeded != needed.end();
-           ++pneeded)
+      Dynobj::Needed::const_iterator pneeded;
+      for (pneeded = needed.begin(); pneeded != needed.end(); ++pneeded)
         {
           if (this->sonames_.find(*pneeded) == this->sonames_.end())
             {
               found_all = false;
               break;
             }
         }
       (*p)->set_has_unknown_needed_entries(!found_all);
+
+      // --copy-dt-needed-entries aka --add-needed is a GNU ld option
+      // --that gold does not support.  However, they cause no trouble
+      // --unless there is a DT_NEEDED entry that we don't know about;
+      // --warn only in that case.
+      if (!found_all
+          && !issued_copy_dt_needed_error
+          && (parameters->options().copy_dt_needed_entries()
+              || parameters->options().add_needed()))
+        {
+          const char* optname;
+          if (parameters->options().copy_dt_needed_entries())
+            optname = "--copy-dt-needed-entries";
+          else
+            optname = "--add-needed";
+          gold_error(_("%s is not supported but is required for %s in %s"),
+                     optname, (*pneeded).c_str(), (*p)->name().c_str());
+          issued_copy_dt_needed_error = true;
+        }
     }
 }
 
 // Start processing an archive.
 
 void
 Input_objects::archive_start(Archive* archive)
 {
   if (parameters->options().user_set_print_symbol_counts())
     {
@@ skipping 287 matching lines @@
 template
 struct Relocate_info<64, false>;
 #endif
 
 #ifdef HAVE_TARGET_64_BIG
 template
 struct Relocate_info<64, true>;
 #endif
 
 } // End namespace gold.