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/* Set flags signalling availability of kernel features based on given
kernel version number.
Copyright (C) 1999-2003, 2004, 2005 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. */
/* This file must not contain any C code. At least it must be protected
to allow using the file also in assembler files. */
#if defined __mips__
# include <sgidefs.h>
#endif
#include <linux/version.h>
#define __LINUX_KERNEL_VERSION LINUX_VERSION_CODE
/* Real-time signal became usable in 2.1.70. */
#if __LINUX_KERNEL_VERSION >= 131398
# define __ASSUME_REALTIME_SIGNALS 1
#endif
/* Beginning with 2.5.63 support for realtime and monotonic clocks and
timers based on them is available. */
#if __LINUX_KERNEL_VERSION >= 132415
# define __ASSUME_POSIX_TIMERS 1
#endif
/* On x86, the set_thread_area syscall was introduced in 2.5.29, but its
semantics was changed in 2.5.30, and again after 2.5.31. */
#if __LINUX_KERNEL_VERSION >= 132384 && defined __i386__
# define __ASSUME_SET_THREAD_AREA_SYSCALL 1
#endif
/* We can use the LDTs for threading with Linux 2.3.99 and newer. */
#if __LINUX_KERNEL_VERSION >= 131939
# define __ASSUME_LDT_WORKS 1
#endif
/* Starting with 2.4.5 kernels PPC passes the AUXV in the standard way
and the vfork syscall made it into the official kernel. */
#if __LINUX_KERNEL_VERSION >= (132096+5) && defined __powerpc__
# define __ASSUME_STD_AUXV 1
# define __ASSUME_VFORK_SYSCALL 1
#endif
/* The vfork syscall on x86 and arm was definitely available in 2.4. */
#if __LINUX_KERNEL_VERSION >= 132097 && (defined __i386__ || defined __arm__)
# define __ASSUME_VFORK_SYSCALL 1
#endif
/* Starting with version 2.6.4-rc1 the getdents syscall returns d_type
* information as well and in between 2.6.5 and 2.6.8 most compat wrappers
* were fixed too. Except s390{,x} which was fixed in 2.6.11. */
#if (__LINUX_KERNEL_VERSION >= 0x020608 && !defined __s390__) \
|| (__LINUX_KERNEL_VERSION >= 0x02060b && defined __s390__)
# define __ASSUME_GETDENTS32_D_TYPE 1
#endif
/* Support for various CLOEXEC and NONBLOCK flags was added for x86,
x86-64, PPC, IA-64, SPARC< and S390 in 2.6.23. */
#if __LINUX_KERNEL_VERSION >= 0x020617 \
&& (defined __i386__ || defined __x86_64__ || defined __powerpc__ \
|| defined __ia64__ || defined __sparc__ || defined __s390__)
# define __ASSUME_O_CLOEXEC 1
#endif
/* These features were surely available with 2.4.12. */
#if __LINUX_KERNEL_VERSION >= 132108 && defined __mc68000__
# define __ASSUME_MMAP2_SYSCALL 1
# define __ASSUME_TRUNCATE64_SYSCALL 1
# define __ASSUME_STAT64_SYSCALL 1
# define __ASSUME_FCNTL64 1
# define __ASSUME_VFORK_SYSCALL 1
#endif
/* This header was added somewhere around 2.6.13 */
#if __LINUX_KERNEL_VERSION >= 132621
# define HAVE_LINUX_CPUMASK_H 1
#endif
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