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diff --git a/REORG.TODO/sysdeps/x86_64/dl-tls.h b/REORG.TODO/sysdeps/x86_64/dl-tls.h
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+/* Thread-local storage handling in the ELF dynamic linker. x86-64 version.
+ Copyright (C) 2002-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stdint.h>
+
+/* Type used for the representation of TLS information in the GOT. */
+typedef struct dl_tls_index
+{
+ uint64_t ti_module;
+ uint64_t ti_offset;
+} tls_index;
+
+
+extern void *__tls_get_addr (tls_index *ti);