[MIPS] Initial checkin for MIPS changes for GOLD.

gold/output.h

 // output.h -- manage the output file for gold   -*- C++ -*-
 
 // Copyright 2006, 2007, 2008, 2009, 2010, 2011 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
@@ skipping 2406 matching lines @@
 
   // Add a new dynamic entry with a string.
   void
   add_string(elfcpp::DT tag, const char* str)
   { this->add_entry(Dynamic_entry(tag, this->pool_->add(str, true, NULL))); }
 
   void
   add_string(elfcpp::DT tag, const std::string& str)
   { this->add_string(tag, str.c_str()); }
 
+  // Add a new dynamic entry with target specific value.
+  void
+  add_target_specific(elfcpp::DT tag)
+  { this->add_entry(Dynamic_entry(tag)); }
+
  protected:
   // Adjust the output section to set the entry size.
   void
   do_adjust_output_section(Output_section*);
 
   // Set the final data size.
   void
   set_final_data_size();
 
   // Write out the dynamic entries.
@@ skipping 44 matching lines @@
     // Create an entry with the address of a symbol.
     Dynamic_entry(elfcpp::DT tag, const Symbol* sym)
       : tag_(tag), offset_(DYNAMIC_SYMBOL)
     { this->u_.sym = sym; }
 
     // Create an entry with a string.
     Dynamic_entry(elfcpp::DT tag, const char* str)
       : tag_(tag), offset_(DYNAMIC_STRING)
     { this->u_.str = str; }
 
+    // Create an entry with a target specific value.
+    Dynamic_entry(elfcpp::DT tag)
+      : tag_(tag), offset_(DYNAMIC_TARGET)
+    { };
+
     // Return the tag of this entry.
     elfcpp::DT
     tag() const
     { return this->tag_; }
 
     // Write the dynamic entry to an output view.
     template<int size, bool big_endian>
     void
     write(unsigned char* pov, const Stringpool*) const;
 
    private:
     // Classification is encoded in the OFFSET field.
     enum Classification
     {
       // Section address.
       DYNAMIC_SECTION_ADDRESS = 0,
       // Number.
       DYNAMIC_NUMBER = -1U,
       // Section size.
       DYNAMIC_SECTION_SIZE = -2U,
       // Symbol adress.
       DYNAMIC_SYMBOL = -3U,
       // String.
-      DYNAMIC_STRING = -4U
+      DYNAMIC_STRING = -4U,
+      // Target specific value.
+      DYNAMIC_TARGET = -5U
       // Any other value indicates a section address plus OFFSET.
     };
 
     union
     {
       // For DYNAMIC_NUMBER.
       unsigned int val;
       // For DYNAMIC_SECTION_SIZE and section address plus OFFSET.
       const Output_data* od;
       // For DYNAMIC_SYMBOL.
@@ skipping 2078 matching lines @@
   bool map_is_anonymous_;
   // True if base_ was allocated using new rather than mmap.
   bool map_is_allocated_;
   // True if this is a temporary file which should not be output.
   bool is_temporary_;
 };
 
 } // End namespace gold.
 
 #endif // !defined(GOLD_OUTPUT_H)