Use XSTAT_IS_XSTAT64 in generic xstat functions

	* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c: Do not define
	fxstat if XSTAT_IS_XSTAT64 is set to non-zero.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c: Ditto for
	fxstatat.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c: Ditto for
	lxstat.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c: Ditto for xstat.

	* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat64.c: New file.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat64.c: New file.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c: Make __lxstat
	an alias of __lxstat64 if XSTAT_IS_XSTAT64 is set to non-zero.
	* sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c: Ditto for
	__xstat.

8 files changed, 107 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c
index dd5201192c..0a689a8455 100644
--- a/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c
+++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat.c
@@ -25,6 +25,7 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 
+#if !XSTAT_IS_XSTAT64
 #include "overflow.h"
 
 /* Get information about the file FD in BUF.  */
@@ -43,3 +44,4 @@ __fxstat (int vers, int fd, struct stat *buf)
 
 hidden_def (__fxstat)
 weak_alias (__fxstat, _fxstat);
+#endif
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat64.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat64.c
new file mode 100644
index 0000000000..bb97a704f0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstat64.c
@@ -0,0 +1,36 @@
+/* __fxstat64 () implementation.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   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/>.  */
+
+/* Hide the prototypes for __fxstat and _fxstat so that GCC will not
+   complain about the different function signatures if they are aliased
+   to  __fxstat64.  If XSTAT_IS_XSTAT64 is set to non-zero then the stat and
+   stat64 structures have an identical layout but different type names.  */
+
+#define __fxstat __fxstat_disable
+#define _fxstat _fxstat_disable
+
+#include <sysdeps/unix/sysv/linux/fxstat64.c>
+
+#undef __fxstat
+#undef _fxstat
+#if XSTAT_IS_XSTAT64
+weak_alias (__fxstat64, __fxstat)
+weak_alias (__fxstat64, _fxstat)
+hidden_ver (__fxstat64, __fxstat)
+#endif
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c
index dc7f934908..aaed6dbabf 100644
--- a/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c
+++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat.c
@@ -26,6 +26,7 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 
+#if !XSTAT_IS_XSTAT64
 #include "overflow.h"
 
 /* Get information about the file NAME in BUF.  */
@@ -42,3 +43,4 @@ __fxstatat (int vers, int fd, const char *file, struct stat *buf, int flag)
   return -1;
 }
 libc_hidden_def (__fxstatat)
+#endif
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat64.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat64.c
new file mode 100644
index 0000000000..dac2ad1d8c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/fxstatat64.c
@@ -0,0 +1,37 @@
+/* __fxstatat64 () implementation.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+   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/>.  */
+
+/* Hide the prototype for __fxstatat so that GCC will not complain about
+   the different function signature if it is aliased to  __fxstatat64.
+   If XSTAT_IS_XSTAT64 is set to non-zero then the stat and stat64 structures
+   have an identical layout but different type names.  */
+
+#define __fxstatat __fxstatat_disable
+
+#include <sys/stat.h>
+#undef _STAT_VER_LINUX
+#define _STAT_VER_LINUX _STAT_VER_KERNEL
+
+#include <sysdeps/unix/sysv/linux/fxstatat64.c>
+
+#undef __fxstatat
+#if XSTAT_IS_XSTAT64
+weak_alias (__fxstatat64, __fxstatat)
+libc_hidden_ver (__fxstatat64, __fxstatat)
+#endif
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c
index 395f98b06f..dd0338b485 100644
--- a/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c
+++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat.c
@@ -25,6 +25,7 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 
+#if !XSTAT_IS_XSTAT64
 #include "overflow.h"
 
 /* Get information about the file NAME in BUF.  */
@@ -41,3 +42,4 @@ __lxstat (int vers, const char *name, struct stat *buf)
   return -1;
 }
 hidden_def (__lxstat)
+#endif
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c
index e1c15a8cc2..7407c6b3f8 100644
--- a/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c
+++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/lxstat64.c
@@ -16,6 +16,13 @@
    License along with the GNU C Library.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
+/* Hide the prototype for __lxstat so that GCC will not complain about
+   the different function signature if it is aliased to  __lxstat64.
+   If XSTAT_IS_XSTAT64 is set to non-zero then the stat and stat64
+   structures have an identical layout but different type names.  */
+
+#define __lxstat __lxstat_disable
+
 #include <errno.h>
 #include <stddef.h>
 #include <fcntl.h>
@@ -36,3 +43,9 @@ __lxstat64 (int vers, const char *name, struct stat64 *buf)
   return -1;
 }
 hidden_def (__lxstat64)
+
+#undef __lxstat
+#if XSTAT_IS_XSTAT64
+strong_alias (__lxstat64, __lxstat)
+hidden_ver (__lxstat64, __lxstat)
+#endif
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c
index fdd2cb0ed8..b776e31d93 100644
--- a/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c
+++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat.c
@@ -25,6 +25,7 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 
+#if !XSTAT_IS_XSTAT64
 #include "overflow.h"
 
 /* Get information about the file NAME in BUF.  */
@@ -41,3 +42,4 @@ __xstat (int vers, const char *name, struct stat *buf)
   return -1;
 }
 hidden_def (__xstat)
+#endif
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c
index 225233780b..e710931f1b 100644
--- a/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c
+++ b/sysdeps/unix/sysv/linux/generic/wordsize-32/xstat64.c
@@ -16,6 +16,13 @@
    License along with the GNU C Library.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
+/* Hide the prototype for __xstat so that GCC will not complain about
+   the different function signature if it is aliased to  __xstat64.
+   If XSTAT_IS_XSTAT64 is set to non-zero then the stat and stat64
+   structures have an identical layout but different type names.  */
+
+#define __xstat __xstat_disable
+
 #include <errno.h>
 #include <stddef.h>
 #include <fcntl.h>
@@ -36,3 +43,9 @@ __xstat64 (int vers, const char *name, struct stat64 *buf)
   return -1;
 }
 hidden_def (__xstat64)
+
+#undef __xstat
+#if XSTAT_IS_XSTAT64
+strong_alias (__xstat64, __xstat)
+hidden_ver (__xstat64, __xstat)
+#endif