From 7c65e9001b93d5d20046bc4d50fd10fff5f4adc2 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Fri, 20 Jan 2006 07:08:05 +0000
Subject: * include/fcntl.h: Declare __have_atfcts.

	* sysdeps/unix/sysv/linux/faccessat.c: Use syscall if available.
	* sysdeps/unix/sysv/linux/fchmodat.c: Likewise.
	* sysdeps/unix/sysv/linux/fchownat.c: Likewise.
	* sysdeps/unix/sysv/linux/futimesat.c: Likewise.
	* sysdeps/unix/sysv/linux/linkat.c: Likewise.
	* sysdeps/unix/sysv/linux/mkdirat.c: Likewise.
	* sysdeps/unix/sysv/linux/openat.c: Likewise.
	* sysdeps/unix/sysv/linux/readlinkat.c: Likewise.
	* sysdeps/unix/sysv/linux/renameat.c: Likewise.
	* sysdeps/unix/sysv/linux/symlinkat.c: Likewise.
	* sysdeps/unix/sysv/linux/unlinkat.c: Likewise.
	* sysdeps/unix/sysv/linux/xmknodat.c: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c: Likewise.
	* sysdeps/unix/sysv/linux/kernel-features.h: Define __ASSUME_PSELECT,
	__ASSUME_PPOLL, and __ASSUME_ATFCTS if possible.

	* io/ppoll.c: New file.
	* io/Makefile (routines): Add ppoll.
	(CFLAGS-ppoll.c): Define.
	* io/Versions: Export ppoll for GLIBC_2.4.
	* io/sys/poll.h: Declare ppoll.
	* sysdeps/unix/sysv/linux/ppoll.c: New file.

	* misc/pselect.c: Make it possible to include this file to define
	the generic code as a static function.
	* sysdeps/unix/sysv/linux/pselect.c: New file.
---
 sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c | 31 +++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

(limited to 'sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c')

diff --git a/sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c b/sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c
index 159301c172..0c37495575 100644
--- a/sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c
+++ b/sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c
@@ -28,15 +28,40 @@
 #include <sys/stat.h>
 
 #include <sysdep.h>
+#include <kernel-features.h>
 #include <sys/syscall.h>
 #include <bp-checks.h>
 
+
 /* Get information about the file NAME relative to FD in ST.  */
 int
 __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
 {
-  if ((vers != _STAT_VER_KERNEL && vers != _STAT_VER_LINUX)
-      || (flag & ~AT_SYMLINK_NOFOLLOW) != 0)
+  if (vers != _STAT_VER_KERNEL && vers != _STAT_VER_LINUX)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  int res;
+
+#ifdef __NR_newfstatat
+# ifndef __ASSUME_ATFCTS
+  if (__have_atfcts >= 0)
+# endif
+    {
+      res = INLINE_SYSCALL (newfstatat, 4, fd, file, st, flag);
+# ifndef __ASSUME_ATFCTS
+      if (res == -1 && errno == ENOSYS)
+	__have_atfcts = -1;
+      else
+# endif
+	return res;
+    }
+#endif
+
+#ifndef __ASSUME_ATFCTS
+  if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
     {
       __set_errno (EINVAL);
       return -1;
@@ -63,7 +88,6 @@ __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
     }
 
   INTERNAL_SYSCALL_DECL (err);
-  int res;
 
   if (flag & AT_SYMLINK_NOFOLLOW)
     res = INTERNAL_SYSCALL (lstat, err, 2, file, CHECK_1 (st));
@@ -77,6 +101,7 @@ __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
     }
 
   return res;
+#endif
 }
 #undef __fxstatat64
 strong_alias (__fxstatat, __fxstatat64);
-- 
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