Don't use INTUSE with __adjtimex (bug 14132).

Bug 14132 is removal of the old INTDEF/INTUSE system of *_internal
aliases as obsoleted by the hidden_proto / hidden_def system.  Various
cases were cleaned up in 2012, but some remain.  This patch removes
the use of this mechanism for __adjtimex.

Tested for x86_64 that stripped installed shared libraries are
unchanged by the patch.

	[BZ #14132]
	* sysdeps/unix/sysv/linux/include/sys/timex.h: New file.
	* sysdeps/unix/sysv/linux/adjtime.c [!ADJTIMEX] (ADJTIMEX): Do not
	use INTUSE.
	[!ADJTIMEX] (INTUSE(__adjtimex)): Remove declaration.
	* sysdeps/unix/sysv/linux/alpha/adjtime.c (__adjtimex_internal):
	Remove alias.
	(__adjtimex): Define using libc_hidden_ver.
	* sysdeps/unix/sysv/linux/ntp_gettime.c (INTUSE(__adjtimex)):
	Remove declaration.
	(ntp_gettime): Call __adjtimex directly.
	* sysdeps/unix/sysv/linux/ntp_gettimex.c (INTUSE(__adjtimex)):
	Remove declaration.
	(ntp_gettimex): Call __adjtimex directly.
	* sysdeps/unix/sysv/linux/syscalls.list (adjtimex): Remove
	__adjtimex_internal alias.

ChangeLog

@@ -1,3 +1,22 @@
+2014-10-08  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #14132]
+	* sysdeps/unix/sysv/linux/include/sys/timex.h: New file.
+	* sysdeps/unix/sysv/linux/adjtime.c [!ADJTIMEX] (ADJTIMEX): Do not
+	use INTUSE.
+	[!ADJTIMEX] (INTUSE(__adjtimex)): Remove declaration.
+	* sysdeps/unix/sysv/linux/alpha/adjtime.c (__adjtimex_internal):
+	Remove alias.
+	(__adjtimex): Define using libc_hidden_ver.
+	* sysdeps/unix/sysv/linux/ntp_gettime.c (INTUSE(__adjtimex)):
+	Remove declaration.
+	(ntp_gettime): Call __adjtimex directly.
+	* sysdeps/unix/sysv/linux/ntp_gettimex.c (INTUSE(__adjtimex)):
+	Remove declaration.
+	(ntp_gettimex): Call __adjtimex directly.
+	* sysdeps/unix/sysv/linux/syscalls.list (adjtimex): Remove
+	__adjtimex_internal alias.
+
 2014-10-08  Roland McGrath  <roland@hack.frob.com>
 
 	[BZ #17460]

sysdeps/unix/sysv/linux/adjtime.c

@@ -41,8 +41,7 @@
 
 #ifndef ADJTIMEX
 #define NO_LOCAL_ADJTIME
-#define ADJTIMEX(x) INTUSE(__adjtimex) (x)
+#define ADJTIMEX(x) __adjtimex (x)
-extern int INTUSE(__adjtimex) (struct timex *__ntx);
 #endif
 
 #ifndef LINKAGE

sysdeps/unix/sysv/linux/alpha/adjtime.c

@@ -86,7 +86,7 @@ compat_symbol (libc, __adjtime_tv32, adjtime, GLIBC_2_0);
 int
 __adjtimex_tv64 (struct timex *tx) { return ADJTIMEX (tx); }
 
-strong_alias (__adjtimex_tv64, __adjtimex_internal);
+libc_hidden_ver (__adjtimex_tv64, __adjtimex)
 strong_alias (__adjtimex_tv64, __adjtimex_tv64p);
 weak_alias (__adjtimex_tv64, ntp_adjtime);
 versioned_symbol (libc, __adjtimex_tv64, __adjtimex, GLIBC_2_1);

sysdeps/unix/sysv/linux/include/sys/timex.h

@@ -0,0 +1,26 @@
+/* Internal declarations for sys/timex.h.
+   Copyright (C) 2014 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/>.  */
+
+#ifndef	_INCLUDE_SYS_TIMEX_H
+#define	_INCLUDE_SYS_TIMEX_H	1
+
+#include_next <sys/timex.h>
+
+libc_hidden_proto (__adjtimex)
+
+#endif /* sys/timex.h */

sysdeps/unix/sysv/linux/ntp_gettime.c

@@ -26,9 +26,6 @@
 #endif
 
 
-extern int INTUSE(__adjtimex) (struct timex *__ntx);
-
-
 int
 ntp_gettime (struct ntptimeval *ntv)
 {
@@ -36,7 +33,7 @@ ntp_gettime (struct ntptimeval *ntv)
   int result;
 
   tntx.modes = 0;
-  result = INTUSE(__adjtimex) (&tntx);
+  result = __adjtimex (&tntx);
   ntv->time = tntx.time;
   ntv->maxerror = tntx.maxerror;
   ntv->esterror = tntx.esterror;

sysdeps/unix/sysv/linux/ntp_gettimex.c

@@ -22,9 +22,6 @@
 #endif
 
 
-extern int INTUSE(__adjtimex) (struct timex *__ntx);
-
-
 int
 ntp_gettimex (struct ntptimeval *ntv)
 {
@@ -32,7 +29,7 @@ ntp_gettimex (struct ntptimeval *ntv)
   int result;
 
   tntx.modes = 0;
-  result = INTUSE(__adjtimex) (&tntx);
+  result = __adjtimex (&tntx);
   ntv->time = tntx.time;
   ntv->maxerror = tntx.maxerror;
   ntv->esterror = tntx.esterror;

sysdeps/unix/sysv/linux/syscalls.list

@@ -1,6 +1,6 @@
 # File name	Caller	Syscall name	Args	Strong name	Weak names
 
-adjtimex	adjtime	adjtimex	i:p	__adjtimex	adjtimex ntp_adjtime __adjtimex_internal
+adjtimex	adjtime	adjtimex	i:p	__adjtimex	adjtimex ntp_adjtime
 alarm		-	alarm		i:i	alarm
 bdflush		EXTRA	bdflush		i:ii	bdflush
 capget		EXTRA	capget		i:pp	capget