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) 2010-2014 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 #define __ASSUME_UTIMES 1
  24
  25 /* Support for the O_CLOEXEC flag was added for alpha in 2.6.23.  */
  26 #if __LINUX_KERNEL_VERSION >= 0x020617
  27 # define __ASSUME_O_CLOEXEC    1
  28 #endif
  29
  30 /* Support for various CLOEXEC and NONBLOCK flags was added for alpha after
  31    2.6.33-rc1.  */
  32 #if __LINUX_KERNEL_VERSION >= 0x020621
  33 # define __ASSUME_SOCK_CLOEXEC  1
  34 # define __ASSUME_IN_NONBLOCK   1
  35 #endif
  36
  37 /* Support for the pipe2, eventfd2, signalfd4 syscalls was added for alpha
  38    after 2.6.33-rc1.  */
  39 #if __LINUX_KERNEL_VERSION >= 0x020621
  40 # define __ASSUME_PIPE2     1
  41 # define __ASSUME_EVENTFD2  1
  42 # define __ASSUME_SIGNALFD4 1
  43 #endif
  44
  45 /* Support for recvmmsg was added for alpha in 2.6.33.  */
  46 #if __LINUX_KERNEL_VERSION >= 0x020621
  47 # define __ASSUME_RECVMMSG_SYSCALL       1
  48 #endif
  49
  50 /* Support for accept4 and sendmmsg was added for alpha in 3.2.  */
  51 #if __LINUX_KERNEL_VERSION >= 0x030200
  52 # define __ASSUME_ACCEPT4_SYSCALL      1
  53 # define __ASSUME_SENDMMSG_SYSCALL     1
  54 #endif
  55
  56 #include_next <kernel-features.h>
  57
  58 #undef __ASSUME_ST_INO_64_BIT
  59
  60 /* pselect/ppoll were introduced on alpha just after 2.6.22-rc1.  */
  61 #if __LINUX_KERNEL_VERSION < 0x020617
  62 # undef __ASSUME_PSELECT
  63 # undef __ASSUME_PPOLL
  64 #endif
  65
  66 /* The *at syscalls were introduced on alpha just after 2.6.22-rc1.  */
  67 #if __LINUX_KERNEL_VERSION < 0x020617
  68 # undef __ASSUME_ATFCTS
  69 #endif
  70
  71 /* Support for inter-process robust mutexes was added on alpha just
  72    after 2.6.22-rc1.  */
  73 #if __LINUX_KERNEL_VERSION < 0x020617
  74 # undef __ASSUME_SET_ROBUST_LIST
  75 #endif
  76
  77 /* Support for utimensat was added on alpha after 2.6.22-rc1.  */
  78 #if __LINUX_KERNEL_VERSION < 0x020617
  79 # undef __ASSUME_UTIMENSAT
  80 #endif
  81
  82 /* Support for fallocate was added for alpha after 2.6.33-rc1.  */
  83 #if __LINUX_KERNEL_VERSION < 0x020621
  84 # undef __ASSUME_FALLOCATE
  85 #endif
  86
  87 /* There never has been support for fstat64.  */
  88 #undef __ASSUME_STATFS64
  89 #define __ASSUME_STATFS64 0
  90
  91 /* Support for fsyncdata was added for alpha after 2.6.21.  */
  92 #if __LINUX_KERNEL_VERSION >= 0x020616
  93 # define __ASSUME_FDATASYNC     1
  94 #endif
  95
  96 /* Support for preadv and pwritev was added for alpha in 2.6.33.  */
  97 #if __LINUX_KERNEL_VERSION < 0x020621
  98 # undef __ASSUME_PREADV
  99 # undef __ASSUME_PWRITEV
 100 #endif
 101
 102 #endif /* _KERNEL_FEATURES_H */