Don't make PLT entry for R_X86_64_GOTPLT64

* x86_64.cc (Target_x86_64<size>::Scan::global): Don't make PLT
	entry for R_X86_64_GOTPLT64.
	(Target_x86_64<size>::Relocate::relocate): Update comments for
	R_X86_64_GOTPLT64.

gold/ChangeLog

@@ -1,3 +1,10 @@
+2014-11-13  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* x86_64.cc (Target_x86_64<size>::Scan::global): Don't make PLT
+	entry for R_X86_64_GOTPLT64.
+	(Target_x86_64<size>::Relocate::relocate): Update comments for
+	R_X86_64_GOTPLT64.
+
 2014-11-06  Evgeniy Dushistov  <dushistov@mail.ru>
 
 	* plugin.cc: use lock to searialize calls of Plugin_manager::claim_file

gold/x86_64.cc

@@ -2923,11 +2923,6 @@ Target_x86_64<size>::Scan::global(Symbol_table* symtab,
 		  }
 	      }
 	  }
-	// For GOTPLT64, we also need a PLT entry (but only if the
-	// symbol is not fully resolved).
-	if (r_type == elfcpp::R_X86_64_GOTPLT64
-	    && !gsym->final_value_is_known())
-	  target->make_plt_entry(symtab, layout, gsym);
       }
       break;
 
@@ -3454,9 +3449,9 @@ Target_x86_64<size>::Relocate::relocate(
       break;
 
     case elfcpp::R_X86_64_GOT64:
-      // The ABI doc says "Like GOT64, but indicates a PLT entry is needed."
-      // Since we always add a PLT entry, this is equivalent.
     case elfcpp::R_X86_64_GOTPLT64:
+      // R_X86_64_GOTPLT64 is obsolete and treated the the same as
+      // GOT64.
       gold_assert(have_got_offset);
       Relocate_functions<size, false>::rela64(view, got_offset, addend);
       break;