elf: Consolidate machine-agnostic DTV definitions in <dl-dtv.h>

Identical definitions of dtv_t and TLS_DTV_UNALLOCATED were
repeated for all architectures using DTVs.

1 files changed, 36 insertions, 0 deletions

diff --git a/sysdeps/generic/dl-dtv.h b/sysdeps/generic/dl-dtv.h
new file mode 100644
index 0000000000..36c5c58cdd
--- /dev/null
+++ b/sysdeps/generic/dl-dtv.h
@@ -0,0 +1,36 @@
+/* Generic declarations for DTV-based TLS handling in the dynamic linker.
+   Copyright (C) 2002-2016 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/>.  */
+
+#ifndef _DL_DTV_H
+#define _DL_DTV_H
+
+/* Type for the dtv.  */
+typedef union dtv
+{
+  size_t counter;
+  struct
+  {
+    void *val;
+    bool is_static;
+  } pointer;
+} dtv_t;
+
+/* Value used for dtv entries for which the allocation is delayed.  */
+#define TLS_DTV_UNALLOCATED ((void *) -1l)
+
+#endif /* _DLT_DTV_H */