Update.

	* sysdeps/unix/opendir.c: If O_DIRECTORY_WORKS is defined don't
	use the hack with tryopen_o_directory to determine at runtime
	whether it works.
	* sysdeps/unix/sysv/linux/opendir.c: New file.
	* sysdeps/unix/sysv/linux/kernel-features.h: Define
	__ASSUME_O_DIRECTORY if kernel knows O_DIRECTORY.

diff --git a/ChangeLog b/ChangeLog
index 6c3267f..821c737 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2000-09-06  Ulrich Drepper  <drepper@redhat.com>
 
+       * sysdeps/unix/opendir.c: If O_DIRECTORY_WORKS is defined don't
+       use the hack with tryopen_o_directory to determine at runtime
+       whether it works.
+       * sysdeps/unix/sysv/linux/opendir.c: New file.
+       * sysdeps/unix/sysv/linux/kernel-features.h: Define
+       __ASSUME_O_DIRECTORY if kernel knows O_DIRECTORY.
+
        * catgets/Depend: New file.  Add intl.
        * catgets/Makefile (tests): Add tst-catgets.
        (generated): Remove de.msg.

diff --git a/sysdeps/unix/opendir.c b/sysdeps/unix/opendir.c
index cf030e0..ad91931 100644 (file)
--- a/sysdeps/unix/opendir.c
+++ b/sysdeps/unix/opendir.c
@@ -40,6 +40,10 @@
    a guinea pig.  It may be missing in chroot environments, so we
    make sure to fail safe. */
 #ifdef O_DIRECTORY
+# ifdef O_DIRECTORY_WORKS
+#  define o_directory_works 1
+#  define tryopen_o_directory() while (1) /* This must not be called.  */
+# else
 static int o_directory_works;
 
 static void
@@ -60,6 +64,7 @@ tryopen_o_directory (void)
 
   __set_errno (serrno);
 }
+# endif
 # define EXTRA_FLAGS O_DIRECTORY
 #else
 # define EXTRA_FLAGS 0

diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 2f9d12b..c7ff66e 100644 (file)
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -142,3 +142,9 @@
 #if __LINUX_KERNEL_VERSION >= 132097
 # define __ASSUME_GETDENTS64_SYSCALL   1
 #endif
+
+/* When did O_DIRECTORY became available?  Early in 2.3 but when?
+   Be safe, use 2.3.99.  */
+#if __LINUX_KERNEL_VERSION >= 131939
+# define __ASSUME_O_DIRECTORY  1
+#endif

diff --git a/sysdeps/unix/sysv/linux/opendir.c b/sysdeps/unix/sysv/linux/opendir.c
new file mode 100644 (file)
index 0000000..f58b379
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/opendir.c
@@ -0,0 +1,26 @@
+/* Copyright (C) 2000 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include "kernel-features.h"
+
+
+#ifdef __ASSUME_O_DIRECTORY
+# define O_DIRECTORY_WORKS     1
+#endif
+
+#include <sysdeps/unix/opendir.c>