sysdeps/unix/sysv/linux/alpha/kernel-features.h

   1 /* Set flags signalling availability of kernel features based on given
   2    kernel version number.
   3    Copyright (C) 2010-2015 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library.  If not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _KERNEL_FEATURES_H
  21 #define _KERNEL_FEATURES_H 1
  22
  23 /* Support for recvmmsg was added for alpha in 2.6.33.  */
  24 #if __LINUX_KERNEL_VERSION >= 0x020621
  25 # define __ASSUME_RECVMMSG_SYSCALL       1
  26 #endif
  27
  28 /* Support for accept4 and sendmmsg was added for alpha in 3.2.  */
  29 #if __LINUX_KERNEL_VERSION >= 0x030200
  30 # define __ASSUME_ACCEPT4_SYSCALL      1
  31 # define __ASSUME_SENDMMSG_SYSCALL     1
  32 #endif
  33
  34 #include_next <kernel-features.h>
  35
  36 #undef __ASSUME_ST_INO_64_BIT
  37
  38 /* Support for fallocate was added for alpha after 2.6.33-rc1.  */
  39 #if __LINUX_KERNEL_VERSION < 0x020621
  40 # undef __ASSUME_FALLOCATE
  41 #endif
  42
  43 /* There never has been support for fstat64.  */
  44 #undef __ASSUME_STATFS64
  45 #define __ASSUME_STATFS64 0
  46
  47 /* Support for fsyncdata was added for alpha after 2.6.21.  */
  48 #define __ASSUME_FDATASYNC      1
  49
  50 /* Support for various syscalls was added for alpha in 2.6.33.  */
  51 #if __LINUX_KERNEL_VERSION < 0x020621
  52 # undef __ASSUME_PREADV
  53 # undef __ASSUME_PWRITEV
  54 # undef __ASSUME_IN_NONBLOCK
  55 # undef __ASSUME_PIPE2
  56 # undef __ASSUME_EVENTFD2
  57 # undef __ASSUME_SIGNALFD4
  58 # undef __ASSUME_DUP3
  59 #endif
  60
  61 #endif /* _KERNEL_FEATURES_H */