1 files changed, 51 insertions, 0 deletions
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c b/libc/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c
new file mode 100644
index 000000000..3aba81ceb
--- /dev/null
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/gettimeofday.c
@@ -0,0 +1,51 @@
+/* Copyright (C) 2002, 2003, 2007, 2011 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.  */
+
+#include <dl-vdso.h>
+
+
+#define VSYSCALL_ADDR_vgettimeofday	0xffffffffff600000ul
+
+
+#ifdef SHARED
+void *gettimeofday_ifunc (void) __asm__ ("__gettimeofday");
+
+void *
+gettimeofday_ifunc (void)
+{
+  PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
+
+  /* If the vDSO is not available we fall back on the old vsyscall.  */
+  return (_dl_vdso_vsym ("gettimeofday", &linux26)
+	  ?: (void *) VSYSCALL_ADDR_vgettimeofday);
+}
+__asm (".type __gettimeofday, %gnu_indirect_function");
+#else
+# include <sys/time.h>
+# include <sysdep.h>
+# include <errno.h>
+
+int
+__gettimeofday (struct timeval *tv, struct timezone *tz)
+{
+  return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
+}
+#endif
+
+weak_alias (__gettimeofday, gettimeofday)
+strong_alias (__gettimeofday, __gettimeofday_internal)