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-rw-r--r--sysdeps/x86_64/dl-tlsdesc.h64
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diff --git a/sysdeps/x86_64/dl-tlsdesc.h b/sysdeps/x86_64/dl-tlsdesc.h
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+/* Thread-local storage descriptor handling in the ELF dynamic linker.
+   x86_64 version.
+   Copyright (C) 2005, 2008 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _X86_64_DL_TLSDESC_H
+# define _X86_64_DL_TLSDESC_H 1
+
+/* Use this to access DT_TLSDESC_PLT and DT_TLSDESC_GOT.  */
+#ifndef ADDRIDX
+# define ADDRIDX(tag) (DT_NUM + DT_THISPROCNUM + DT_VERSIONTAGNUM \
+		       + DT_EXTRANUM + DT_VALNUM + DT_ADDRTAGIDX (tag))
+#endif
+
+/* Type used to represent a TLS descriptor in the GOT.  */
+struct tlsdesc
+{
+  ptrdiff_t (*entry)(struct tlsdesc *on_rax);
+  void *arg;
+};
+
+typedef struct dl_tls_index
+{
+  unsigned long int ti_module;
+  unsigned long int ti_offset;
+} tls_index;
+
+/* Type used as the argument in a TLS descriptor for a symbol that
+   needs dynamic TLS offsets.  */
+struct tlsdesc_dynamic_arg
+{
+  tls_index tlsinfo;
+  size_t gen_count;
+};
+
+extern ptrdiff_t attribute_hidden
+  _dl_tlsdesc_return(struct tlsdesc *on_rax),
+  _dl_tlsdesc_undefweak(struct tlsdesc *on_rax),
+  _dl_tlsdesc_resolve_rela(struct tlsdesc *on_rax),
+  _dl_tlsdesc_resolve_hold(struct tlsdesc *on_rax);
+
+# ifdef SHARED
+extern void *internal_function _dl_make_tlsdesc_dynamic (struct link_map *map,
+							 size_t ti_offset);
+
+extern ptrdiff_t attribute_hidden _dl_tlsdesc_dynamic(struct tlsdesc *);
+# endif
+
+#endif