Consolidate gettimeofday across aarch64/s390/tile

This patch removes the architecture specific gettimeofday implementation
to use the vDSO symbol and consolidate it on a common Linux one.
Similar to clock_gettime and clock_getres vDSO implementation, each port
that supports gettimeofday through vDSO should just implement INLINE_VSYSCALL
to access the symbol and define HAVE_{GETTIME,GETRES}_VSYSCAL as 1.

3 files changed, 1 insertions, 42 deletions

diff --git a/sysdeps/unix/sysv/linux/aarch64/gettimeofday.c b/sysdeps/unix/sysv/linux/aarch64/gettimeofday.c
deleted file mode 100644
index daa6538a68..0000000000
--- a/sysdeps/unix/sysv/linux/aarch64/gettimeofday.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/* Copyright (C) 2005-2015 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/>.  */
-
-#include <errno.h>
-#include <sys/time.h>
-
-#undef __gettimeofday
-
-#define HAVE_VSYSCALL
-#include <sysdep-vdso.h>
-
-/* Get the current time of day and timezone information,
-   putting it into *tv and *tz.  If tz is null, *tz is not filled.
-   Returns 0 on success, -1 on errors.  */
-int
-__gettimeofday (tv, tz)
-     struct timeval *tv;
-     struct timezone *tz;
-{
-  return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
-}
-libc_hidden_def (__gettimeofday)
-weak_alias (__gettimeofday, gettimeofday)
-libc_hidden_weak (gettimeofday)
diff --git a/sysdeps/unix/sysv/linux/aarch64/init-first.c b/sysdeps/unix/sysv/linux/aarch64/init-first.c
index 854189a793..9cf6c258c4 100644
--- a/sysdeps/unix/sysv/linux/aarch64/init-first.c
+++ b/sysdeps/unix/sysv/linux/aarch64/init-first.c
@@ -18,9 +18,6 @@
 
 #ifdef SHARED
 # include <dl-vdso.h>
-# undef __gettimeofday
-# undef __clock_gettime
-# undef __clock_getres
 # include <libc-vdso.h>
 
 int (*VDSO_SYMBOL(gettimeofday)) (struct timeval *, void *) attribute_hidden;
diff --git a/sysdeps/unix/sysv/linux/aarch64/sysdep.h b/sysdeps/unix/sysv/linux/aarch64/sysdep.h
index e69622a24b..fe94a50d47 100644
--- a/sysdeps/unix/sysv/linux/aarch64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/aarch64/sysdep.h
@@ -155,6 +155,7 @@
 /* List of system calls which are supported as vsyscalls.  */
 # define HAVE_CLOCK_GETRES_VSYSCALL	1
 # define HAVE_CLOCK_GETTIME_VSYSCALL	1
+# define HAVE_GETTIMEOFDAY_VSYSCALL	1
 
 /* Define a macro which expands into the inline wrapper code for a system
    call.  */