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62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
/* Set flags signalling availability of kernel features based on given
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kernel version number.
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Copyright (C) 2010-2015 Free Software Foundation, Inc.
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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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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _KERNEL_FEATURES_H
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#define _KERNEL_FEATURES_H 1
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/* Support for recvmmsg was added for alpha in 2.6.33. */
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#if __LINUX_KERNEL_VERSION >= 0x020621
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# define __ASSUME_RECVMMSG_SYSCALL 1
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#endif
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/* Support for accept4 and sendmmsg was added for alpha in 3.2. */
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#if __LINUX_KERNEL_VERSION >= 0x030200
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# define __ASSUME_ACCEPT4_SYSCALL 1
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# define __ASSUME_SENDMMSG_SYSCALL 1
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#endif
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#include_next <kernel-features.h>
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#undef __ASSUME_ST_INO_64_BIT
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/* Support for fallocate was added for alpha after 2.6.33-rc1. */
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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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/* 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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/* Support for fsyncdata was added for alpha after 2.6.21. */
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#define __ASSUME_FDATASYNC 1
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/* Support for various syscalls was added for alpha in 2.6.33. */
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#if __LINUX_KERNEL_VERSION < 0x020621
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# undef __ASSUME_PREADV
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# undef __ASSUME_PWRITEV
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# undef __ASSUME_IN_NONBLOCK
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# undef __ASSUME_PIPE2
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# undef __ASSUME_EVENTFD2
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# undef __ASSUME_SIGNALFD4
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# undef __ASSUME_DUP3
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#endif
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#endif /* _KERNEL_FEATURES_H */
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