11 files changed, 74 insertions, 222 deletions
diff --git a/sysdeps/unix/clock_gettime.c b/sysdeps/unix/clock_gettime.c
deleted file mode 100644
index aa74e11703..0000000000
--- a/sysdeps/unix/clock_gettime.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/* clock_gettime -- Get the current time from a POSIX clockid_t.  Unix version.
-   Copyright (C) 1999-2019 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
-   <https://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <time.h>
-#include <sys/time.h>
-#include <shlib-compat.h>
-
-/* Get current value of CLOCK and store it in TP.  */
-int
-__clock_gettime (clockid_t clock_id, struct timespec *tp)
-{
-  int retval = -1;
-
-  switch (clock_id)
-    {
-    case CLOCK_REALTIME:
-      {
-	struct timeval tv;
-	retval = __gettimeofday (&tv, NULL);
-	if (retval == 0)
-	  TIMEVAL_TO_TIMESPEC (&tv, tp);
-      }
-      break;
-
-    default:
-      __set_errno (EINVAL);
-      break;
-    }
-
-  return retval;
-}
-libc_hidden_def (__clock_gettime)
-
-versioned_symbol (libc, __clock_gettime, clock_gettime, GLIBC_2_17);
-/* clock_gettime moved to libc in version 2.17;
-   old binaries may expect the symbol version it had in librt.  */
-#if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_17)
-strong_alias (__clock_gettime, __clock_gettime_2);
-compat_symbol (libc, __clock_gettime_2, clock_gettime, GLIBC_2_2);
-#endif
diff --git a/sysdeps/unix/syscalls.list b/sysdeps/unix/syscalls.list
index 5fedd5733d..e28e801c7a 100644
--- a/sysdeps/unix/syscalls.list
+++ b/sysdeps/unix/syscalls.list
@@ -33,7 +33,6 @@ getrlimit	-	getrlimit	i:ip	__getrlimit	getrlimit
 getrusage	-	getrusage	i:ip	__getrusage	getrusage
 getsockname	-	getsockname	i:ibN	__getsockname	getsockname
 getsockopt	-	getsockopt	i:iiiBN	getsockopt
-gettimeofday	-	gettimeofday	i:pP	__gettimeofday	gettimeofday
 getuid		-	getuid		Ei:	__getuid	getuid
 ioctl		-	ioctl		i:iiI	__ioctl		ioctl
 kill		-	kill		i:ii	__kill		kill
diff --git a/sysdeps/unix/sysv/linux/aarch64/gettimeofday.c b/sysdeps/unix/sysv/linux/aarch64/gettimeofday.c
index 4ff74fa285..075af3d0d3 100644
--- a/sysdeps/unix/sysv/linux/aarch64/gettimeofday.c
+++ b/sysdeps/unix/sysv/linux/aarch64/gettimeofday.c
@@ -20,39 +20,39 @@
    putting it into *tv and *tz.  If tz is null, *tz is not filled.
    Returns 0 on success, -1 on errors.  */
 
-#include <sys/time.h>
+#include <time.h>
+#include <sysdep.h>
 
-#ifdef SHARED
-
-# include <dl-vdso.h>
-# include <sysdep-vdso.h>
+#ifdef HAVE_GETTIMEOFDAY_VSYSCALL
+# define HAVE_VSYSCALL
+#endif
+#include <sysdep-vdso.h>
 
 /* Used as a fallback in the ifunc resolver if VDSO is not available
    and for libc.so internal __gettimeofday calls.  */
-
 static int
 __gettimeofday_vsyscall (struct timeval *tv, struct timezone *tz)
 {
+  if (__glibc_unlikely (tz != 0))
+    memset (tz, 0, sizeof *tz);
+
   return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
 }
 
+#ifdef SHARED
+# include <dl-vdso.h>
+# include <sysdep-vdso.h>
+
 # define INIT_ARCH()
-libc_ifunc_hidden (__gettimeofday, __gettimeofday,
-		   (get_vdso_symbol (HAVE_GETTIMEOFDAY_VSYSCALL)
-		    ?: __gettimeofday_vsyscall))
-libc_hidden_def (__gettimeofday)
+libc_ifunc (__gettimeofday,
+	    (get_vdso_symbol (HAVE_GETTIMEOFDAY_VSYSCALL)
+	    ?: __gettimeofday_vsyscall))
 
 #else
-
-# include <sysdep.h>
 int
 __gettimeofday (struct timeval *tv, struct timezone *tz)
 {
-  return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
+  return __gettimeofday_vsyscall (tv, tz);
 }
-libc_hidden_def (__gettimeofday)
-
 #endif
-
 weak_alias (__gettimeofday, gettimeofday)
-libc_hidden_weak (gettimeofday)
diff --git a/sysdeps/unix/sysv/linux/i386/gettimeofday.c b/sysdeps/unix/sysv/linux/alpha/gettimeofday.c
index f6faecb21e..262a3c2352 100644
--- a/sysdeps/unix/sysv/linux/i386/gettimeofday.c
+++ b/sysdeps/unix/sysv/linux/alpha/gettimeofday.c
@@ -1,5 +1,5 @@
-/* gettimeofday - get the time.  Linux/i386 version.
-   Copyright (C) 2015-2019 Free Software Foundation, Inc.
+/* gettimeofday -- Get the current time of day.  Linux/Alpha/tv64 version.
+   Copyright (C) 2019 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
@@ -16,20 +16,7 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#ifdef SHARED
-# define __gettimeofday __redirect___gettimeofday
-#endif
-
-#include <sys/time.h>
-
-#ifdef SHARED
-# undef __gettimeofday
-# define __gettimeofday_type __redirect___gettimeofday
-
-# undef libc_hidden_def
-# define libc_hidden_def(name) \
-  __hidden_ver1 (__gettimeofday_syscall, __GI___gettimeofday, \
-	       __gettimeofday_syscall);
-#endif
-
-#include <sysdeps/unix/sysv/linux/x86/gettimeofday.c>
+/* We can use the generic implementation, but we have to override its
+   default symbol version.  */
+#define VERSION_gettimeofday GLIBC_2.1
+#include <time/gettimeofday.c>
diff --git a/sysdeps/unix/sysv/linux/alpha/osf_gettimeofday.c b/sysdeps/unix/sysv/linux/alpha/osf_gettimeofday.c
index 59fc614523..4698c8a5db 100644
--- a/sysdeps/unix/sysv/linux/alpha/osf_gettimeofday.c
+++ b/sysdeps/unix/sysv/linux/alpha/osf_gettimeofday.c
@@ -20,6 +20,8 @@
 
 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
 
+#include <string.h>
+#include <time.h>
 #include <sys/time.h>
 #include <tv32-compat.h>
 
@@ -30,10 +32,13 @@ int
 attribute_compat_text_section
 __gettimeofday_tv32 (struct timeval32 *restrict tv32, void *restrict tz)
 {
-  struct timeval tv;
-  __gettimeofday (&tv, tz);
+  if (__glibc_unlikely (tz != 0))
+    memset (tz, 0, sizeof (struct timezone));
 
-  *tv32 = valid_timeval64_to_timeval (tv);
+  struct timespec ts;
+  __clock_gettime (CLOCK_REALTIME, &ts);
+
+  *tv32 = valid_timespec_to_timeval32 (ts);
   return 0;
 }
 
diff --git a/sysdeps/unix/sysv/linux/alpha/tv32-compat.h b/sysdeps/unix/sysv/linux/alpha/tv32-compat.h
index 5f86e66e08..0fbf284bb5 100644
--- a/sysdeps/unix/sysv/linux/alpha/tv32-compat.h
+++ b/sysdeps/unix/sysv/linux/alpha/tv32-compat.h
@@ -89,6 +89,12 @@ valid_timeval32_to_timespec (const struct timeval32 tv)
   return (struct timespec) { tv.tv_sec, tv.tv_usec * 1000 };
 }
 
+static inline struct timeval32
+valid_timespec_to_timeval32 (const struct timespec ts)
+{
+  return (struct timeval32) { (time_t) ts.tv_sec, ts.tv_nsec / 1000 };
+}
+
 static inline void
 rusage64_to_rusage32 (struct rusage32 *restrict r32,
                       const struct rusage *restrict r64)
diff --git a/sysdeps/unix/sysv/linux/gettimeofday.c b/sysdeps/unix/sysv/linux/gettimeofday.c
deleted file mode 100644
index c9597d6405..0000000000
--- a/sysdeps/unix/sysv/linux/gettimeofday.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/* Copyright (C) 2015-2019 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
-   <https://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <sys/time.h>
-
-#undef __gettimeofday
-
-#ifdef HAVE_GETTIMEOFDAY_VSYSCALL
-# define HAVE_VSYSCALL
-#endif
-#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 (struct timeval *tv, struct timezone *tz)
-{
-  return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
-}
-
-#ifdef VERSION_gettimeofday
-weak_alias (___gettimeofday, __wgettimeofday);
-default_symbol_version (___gettimeofday, __gettimeofday, VERSION_gettimeofday);
-default_symbol_version (__wgettimeofday,   gettimeofday, VERSION_gettimeofday);
-libc_hidden_ver (___gettimeofday, __gettimeofday);
-libc_hidden_ver (___gettimeofday, gettimeofday);
-#else
-strong_alias (___gettimeofday, __gettimeofday)
-weak_alias (___gettimeofday, gettimeofday)
-libc_hidden_def (__gettimeofday)
-libc_hidden_weak (gettimeofday)
-#endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c b/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c
index 13a1fd292a..02486dee3a 100644
--- a/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c
+++ b/sysdeps/unix/sysv/linux/powerpc/gettimeofday.c
@@ -15,71 +15,40 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#if defined SHARED && !defined __powerpc64__
-# define __gettimeofday __redirect___gettimeofday
-#else
-# define __redirect___gettimeofday __gettimeofday
-#endif
-
-#include <sys/time.h>
-
-#ifdef SHARED
-
-# include <dl-vdso.h>
-# include <libc-vdso.h>
-# include <dl-machine.h>
-# include <sysdep.h>
-
-# ifndef __powerpc64__
-#  undef __gettimeofday
-
-int
-__gettimeofday_vsyscall (struct timeval *tv, struct timezone *tz)
-{
-  return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
-}
-
-/* __GI___gettimeofday is defined as hidden and for ppc32 it enables the
-   compiler make a local call (symbol@local) for internal GLIBC usage. It
-   means the PLT won't be used and the ifunc resolver will be called directly.
-   For ppc64 a call to a function in another translation unit might use a
-   different toc pointer thus disallowing direct branchess and making internal
-   ifuncs calls safe.  */
-#  undef libc_hidden_def
-#  define libc_hidden_def(name)					\
-  __hidden_ver1 (__gettimeofday_vsyscall, __GI___gettimeofday,	\
-	       __gettimeofday_vsyscall);
+#include <time.h>
+#include <sysdep.h>
 
-# endif /* !__powerpc64__  */
+#ifdef HAVE_GETTIMEOFDAY_VSYSCALL
+# define HAVE_VSYSCALL
+#endif
+#include <sysdep-vdso.h>
 
 static int
 __gettimeofday_syscall (struct timeval *tv, struct timezone *tz)
 {
-  return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
+  if (__glibc_unlikely (tz != 0))
+    memset (tz, 0, sizeof *tz);
+
+  return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
 }
 
+#ifdef SHARED
+# include <dl-vdso.h>
+# include <libc-vdso.h>
+
 # define INIT_ARCH() \
   void *vdso_gettimeofday = get_vdso_symbol (HAVE_GETTIMEOFDAY_VSYSCALL)
 
 /* If the vDSO is not available we fall back syscall.  */
-libc_ifunc_hidden (__redirect___gettimeofday, __gettimeofday,
-		   vdso_gettimeofday
-		   ? VDSO_IFUNC_RET (vdso_gettimeofday)
-		   : (void *) __gettimeofday_syscall);
-libc_hidden_def (__gettimeofday)
-
+libc_ifunc (__gettimeofday,
+	    vdso_gettimeofday
+	    ? VDSO_IFUNC_RET (vdso_gettimeofday)
+	    : (void *) __gettimeofday_syscall);
 #else
-
-# include <sysdep.h>
-# include <errno.h>
-
 int
 __gettimeofday (struct timeval *tv, struct timezone *tz)
 {
-  return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
+  return __gettimeofday_syscall (tv, tz);
 }
-libc_hidden_def (__gettimeofday)
-
 #endif
 weak_alias (__gettimeofday, gettimeofday)
-libc_hidden_weak (gettimeofday)
diff --git a/sysdeps/unix/sysv/linux/x86/gettimeofday.c b/sysdeps/unix/sysv/linux/x86/gettimeofday.c
index 2d9248ee26..cb20e358d8 100644
--- a/sysdeps/unix/sysv/linux/x86/gettimeofday.c
+++ b/sysdeps/unix/sysv/linux/x86/gettimeofday.c
@@ -16,47 +16,38 @@
    License along with the GNU C Library; if not, see
    <https://www.gnu.org/licenses/>.  */
 
-#include <sys/time.h>
+#include <time.h>
+#include <sysdep.h>
 
-#ifdef SHARED
-
-# include <dl-vdso.h>
-# include <errno.h>
-# include <sysdep-vdso.h>
-# include <sysdep-vdso.h>
+#ifdef HAVE_GETTIMEOFDAY_VSYSCALL
+# define HAVE_VSYSCALL
+#endif
+#include <sysdep-vdso.h>
 
 static int
 __gettimeofday_syscall (struct timeval *tv, struct timezone *tz)
 {
-  return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
+  if (__glibc_unlikely (tz != 0))
+    memset (tz, 0, sizeof *tz);
+
+  return INLINE_VSYSCALL (gettimeofday, 2, tv, tz);
 }
 
-# ifndef __gettimeofday_type
-/* The i386 gettimeofday.c includes this file with a defined
-   __gettimeofday_type macro.  For x86_64 we have to define it to __gettimeofday
-   as the internal symbol is the ifunc'ed one.  */
-#  define __gettimeofday_type __gettimeofday
-# endif
+#ifdef SHARED
+# include <dl-vdso.h>
+# include <libc-vdso.h>
 
 # define INIT_ARCH()
 /* If the vDSO is not available we fall back to syscall.  */
-libc_ifunc_hidden (__gettimeofday_type, __gettimeofday,
-		   (get_vdso_symbol ("__vdso_gettimeofday")
-		    ?: __gettimeofday_syscall));
-libc_hidden_def (__gettimeofday)
+libc_ifunc (__gettimeofday,
+	    (get_vdso_symbol (HAVE_GETTIMEOFDAY_VSYSCALL)
+	    ?: __gettimeofday_syscall));
 
 #else
-
-# include <sysdep.h>
-# include <errno.h>
-
 int
 __gettimeofday (struct timeval *tv, struct timezone *tz)
 {
-  return INLINE_SYSCALL (gettimeofday, 2, tv, tz);
+  return __gettimeofday_syscall (tv, tz);
 }
-libc_hidden_def (__gettimeofday)
-
 #endif
 weak_alias (__gettimeofday, gettimeofday)
-libc_hidden_weak (gettimeofday)
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/gettimeofday.c b/sysdeps/unix/sysv/linux/x86_64/x32/gettimeofday.c
new file mode 100644
index 0000000000..cd342f33ad
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/gettimeofday.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/x86/gettimeofday.c>
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list b/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list
index b44f6f99e9..786c884232 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/syscalls.list
@@ -1,6 +1,5 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
-gettimeofday	-	gettimeofday:__vdso_gettimeofday@LINUX_2.6	i:pP	__gettimeofday	gettimeofday
 personality	EXTRA	personality	Ei:i	__personality	personality
 posix_fadvise64	-	fadvise64	Vi:iiii	posix_fadvise	posix_fadvise64
 time		-	time:__vdso_time@LINUX_2.6			Ei:P	time