2010-03-26 20:49:55 +00:00
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/* Set flags signalling availability of kernel features based on given
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kernel version number.
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2013-01-02 19:01:50 +00:00
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Copyright (C) 2010-2013 Free Software Foundation, Inc.
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2010-03-26 20:49:55 +00:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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2012-03-09 23:56:38 +00:00
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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2010-03-26 20:49:55 +00:00
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2012-02-08 19:43:50 +00:00
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#ifndef _KERNEL_FEATURES_H
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#define _KERNEL_FEATURES_H 1
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2010-03-26 20:49:55 +00:00
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#define __ASSUME_UTIMES 1
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2010-03-26 20:49:56 +00:00
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/* Support for the O_CLOEXEC flag was added for alpha in 2.6.23. */
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#if __LINUX_KERNEL_VERSION >= 0x020617
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# define __ASSUME_O_CLOEXEC 1
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#endif
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/* Support for various CLOEXEC and NONBLOCK flags was added for alpha after
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2.6.33-rc1. */
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#if __LINUX_KERNEL_VERSION >= 0x020621
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# define __ASSUME_SOCK_CLOEXEC 1
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# define __ASSUME_IN_NONBLOCK 1
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#endif
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2013-06-05 20:26:40 +00:00
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/* Support for the pipe2, eventfd2, signalfd4 syscalls was added for alpha
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2010-03-26 20:49:56 +00:00
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after 2.6.33-rc1. */
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#if __LINUX_KERNEL_VERSION >= 0x020621
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# define __ASSUME_PIPE2 1
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# define __ASSUME_EVENTFD2 1
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# define __ASSUME_SIGNALFD4 1
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#endif
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/* Support for accept4 was added for alpha after 2.6.33-rc1. */
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#if __LINUX_KERNEL_VERSION >= 0x020621
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# define __ASSUME_ACCEPT4 1
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#endif
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2010-03-26 20:49:55 +00:00
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#include_next <kernel-features.h>
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#undef __ASSUME_ST_INO_64_BIT
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/* pselect/ppoll were introduced on alpha just after 2.6.22-rc1. */
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#if __LINUX_KERNEL_VERSION < 0x020617
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# undef __ASSUME_PSELECT
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# undef __ASSUME_PPOLL
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#endif
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/* The *at syscalls were introduced on alpha just after 2.6.22-rc1. */
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#if __LINUX_KERNEL_VERSION < 0x020617
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# undef __ASSUME_ATFCTS
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#endif
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/* Support for inter-process robust mutexes was added on alpha just
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after 2.6.22-rc1. */
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#if __LINUX_KERNEL_VERSION < 0x020617
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# undef __ASSUME_SET_ROBUST_LIST
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#endif
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/* Support for utimensat was added on alpha after 2.6.22-rc1. */
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#if __LINUX_KERNEL_VERSION < 0x020617
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# undef __ASSUME_UTIMENSAT
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#endif
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2010-03-26 20:49:56 +00:00
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/* Support for fallocate was added for alpha after 2.6.33-rc1. */
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2010-03-26 20:49:55 +00:00
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#if __LINUX_KERNEL_VERSION < 0x020621
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# undef __ASSUME_FALLOCATE
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#endif
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2012-02-08 19:43:50 +00:00
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/* There never has been support for fstat64. */
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#undef __ASSUME_STATFS64
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#define __ASSUME_STATFS64 0
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2012-08-17 17:01:28 +00:00
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/* Support for fsyncdata was added for alpha after 2.6.21. */
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#if __LINUX_KERNEL_VERSION >= 0x020616
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# define __ASSUME_FDATASYNC 1
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#endif
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2012-02-08 19:43:50 +00:00
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#endif /* _KERNEL_FEATURES_H */
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