1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/libc-start.c b/sysdeps/unix/sysv/linux/x86_64/libc-start.c
new file mode 100644
index 0000000000..dea2e8afe4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86_64/libc-start.c
@@ -0,0 +1,49 @@
+/* Copyright (C) 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.  */
+
+#ifdef SHARED
+# include <dl-vdso.h>
+# include <bits/libc-vdso.h>
+
+int (*__vdso_gettimeofday) (struct timeval *, void *) attribute_hidden;
+
+int (*__vdso_clock_gettime) (clockid_t, struct timespec *);
+
+
+static inline void
+_libc_vdso_platform_setup (void)
+{
+  PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
+
+  void *p = _dl_vdso_vsym ("gettimeofday", &linux26);
+  /* If the vDSO is not available we fall back on the old vsyscall.  */
+#define VSYSCALL_ADDR_vgettimeofday	0xffffffffff600000ul
+  if (p == NULL)
+    p = (void *) VSYSCALL_ADDR_vgettimeofday;
+  PTR_MANGLE (p);
+  __vdso_gettimeofday = p;
+
+  p = _dl_vdso_vsym ("clock_gettime", &linux26);
+  PTR_MANGLE (p);
+  __vdso_clock_gettime = p;
+}
+
+# define VDSO_SETUP _libc_vdso_platform_setup
+#endif
+
+#include <csu/libc-start.c>