1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-vdso.h b/sysdeps/unix/sysv/linux/dl-vdso.h
new file mode 100644
index 0000000000..7e433e03ab
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/dl-vdso.h
@@ -0,0 +1,49 @@
+/* ELF symbol resolve functions for VDSO objects.
+   Copyright (C) 2005, 2007 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 _DL_VDSO_H
+#define _DL_VDSO_H	1
+
+#include <assert.h>
+#include <ldsodefs.h>
+
+#ifdef NDEBUG
+# define CHECK_HASH(var) do {} while (0)
+#else
+# include <dl-hash.h>
+# define CHECK_HASH(var) assert (var.hash == _dl_elf_hash (var.name))
+#endif
+
+/* Create version number record for lookup.  */
+#define PREPARE_VERSION(var, vname, vhash) \
+  struct r_found_version var;						      \
+  var.name = vname;							      \
+  var.hidden = 1;							      \
+  var.hash = vhash;							      \
+  CHECK_HASH (var);							      \
+  /* We don't have a specific file where the symbol can be found.  */	      \
+  var.filename = NULL
+
+
+/* Functions for resolving symbols in the VDSO link map.  */
+extern void *_dl_vdso_vsym (const char *name,
+			    const struct r_found_version *version)
+     internal_function attribute_hidden;
+
+#endif /* dl-vdso.h */