/* 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