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diff --git a/binutils-2.25/gold/tls.h b/binutils-2.25/gold/tls.h
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+// tls.h -- Thread-Local Storage utility routines 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_TLS_H
+#define GOLD_TLS_H
+
+#include "elfcpp.h"
+#include "reloc.h"
+
+namespace gold
+{
+
+namespace tls
+{
+
+// This is used for relocations that can be converted to a different,
+// more efficient type of relocation.
+
+enum Tls_optimization
+{
+  TLSOPT_NONE,    // Can not convert this relocation to a more efficient one.
+  TLSOPT_TO_LD,   // Can convert General Dynamic to Local Dynamic.
+  TLSOPT_TO_LE,   // Can convert GD or LD to Local-Exec.
+  TLSOPT_TO_IE,   // Can convert GD or LD or LE to Initial-Exec.
+};
+
+// Check the range for a TLS relocation.  This is inlined for efficiency.
+
+template<int size, bool big_endian>
+inline void
+check_range(const Relocate_info<size, big_endian>* relinfo,
+            size_t relnum,
+            typename elfcpp::Elf_types<size>::Elf_Addr rel_offset,
+            section_size_type view_size, int off)
+{
+  typename elfcpp::Elf_types<size>::Elf_Addr offset = rel_offset + off;
+  // Elf_Addr is unsigned, so this also tests for signed offset < 0.
+  if (offset > view_size)
+    gold_error_at_location(relinfo, relnum, rel_offset,
+			   _("TLS relocation out of range"));
+}
+
+// Check the validity of a TLS relocation.  This is like assert.
+
+template<int size, bool big_endian>
+inline void
+check_tls(const Relocate_info<size, big_endian>* relinfo,
+          size_t relnum,
+          typename elfcpp::Elf_types<size>::Elf_Addr rel_offset,
+          bool valid)
+{
+  if (!valid)
+    gold_error_at_location(relinfo, relnum, rel_offset,
+			   _("TLS relocation against invalid instruction"));
+}
+
+
+} // End namespace tls.
+
+} // End namespace gold.
+
+#endif // !defined(GOLD_TLS_H)