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fe7b738e7a
The minimum version that supports TLS. Also avoids having to fix the build for ancient __ASSUME_* settings.
108 lines
3.3 KiB
C
108 lines
3.3 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 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _KERNEL_FEATURES_H
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#define _KERNEL_FEATURES_H 1
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/* alpha switched to a 64-bit timeval sometime before 2.2.0. */
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#if __LINUX_KERNEL_VERSION >= 131584
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# define __ASSUME_TIMEVAL64 1
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#endif
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/* The tgkill syscall was introduced for alpha 2.6.0-test1 which unfortunately
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cannot be distinguished from 2.6.0. */
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#if __LINUX_KERNEL_VERSION >= 132609
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# define __ASSUME_TGKILL 1
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#endif
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/* Starting with version 2.6.4, the stat64 syscalls are available. */
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#if __LINUX_KERNEL_VERSION >= 0x020604 && defined __alpha__
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# define __ASSUME_STAT64_SYSCALL 1
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#endif
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#define __ASSUME_UTIMES 1
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/* Starting with version 2.6.9, SSI_IEEE_RAISE_EXCEPTION exists. */
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#if __LINUX_KERNEL_VERSION >= 0x020609
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# define __ASSUME_IEEE_RAISE_EXCEPTION 1
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#endif
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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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/* Support for the pipe2, eventfd2, signalfd4 syscalls was added for alpha
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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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#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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/* 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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#endif /* _KERNEL_FEATURES_H */
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