alpha: create kernel-features.h.

Signed-off-by: Matt Turner <mattst88@gmail.com>

diff --git a/sysdeps/unix/sysv/linux/alpha/kernel-features.h b/sysdeps/unix/sysv/linux/alpha/kernel-features.h
new file mode 100644 (file)
index 0000000..f611d58
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/kernel-features.h
@@ -0,0 +1,68 @@
+/* Set flags signalling availability of kernel features based on given
+   kernel version number.
+   Copyright (C) 2010 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* alpha switched to a 64-bit timeval sometime before 2.2.0.  */
+#if __LINUX_KERNEL_VERSION >= 131584
+# define __ASSUME_TIMEVAL64    1
+#endif
+
+/* The tgkill syscall was introduced for alpha 2.6.0-test1 which unfortunately
+   cannot be distinguished from 2.6.0.  */
+#if __LINUX_KERNEL_VERSION >= 132609
+# define __ASSUME_TGKILL       1
+#endif
+
+#define __ASSUME_UTIMES        1
+
+/* Starting with version 2.6.9, SSI_IEEE_RAISE_EXCEPTION exists.  */
+#if __LINUX_KERNEL_VERSION >= 0x020609
+# define __ASSUME_IEEE_RAISE_EXCEPTION 1
+#endif
+
+#include_next <kernel-features.h>
+
+#undef __ASSUME_ST_INO_64_BIT
+
+/* pselect/ppoll were introduced on alpha just after 2.6.22-rc1.  */
+#if __LINUX_KERNEL_VERSION < 0x020617
+# undef __ASSUME_PSELECT
+# undef __ASSUME_PPOLL
+#endif
+
+/* The *at syscalls were introduced on alpha just after 2.6.22-rc1.  */
+#if __LINUX_KERNEL_VERSION < 0x020617
+# undef __ASSUME_ATFCTS
+#endif
+
+/* Support for inter-process robust mutexes was added on alpha just
+   after 2.6.22-rc1.  */
+#if __LINUX_KERNEL_VERSION < 0x020617
+# undef __ASSUME_SET_ROBUST_LIST
+#endif
+
+/* Support for utimensat was added on alpha after 2.6.22-rc1.  */
+#if __LINUX_KERNEL_VERSION < 0x020617
+# undef __ASSUME_UTIMENSAT
+#endif
+
+/* Support for fallocate was added on alpha for 2.6.33.  */
+#if __LINUX_KERNEL_VERSION < 0x020621
+# undef __ASSUME_FALLOCATE
+#endif