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) 2010-2012 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 /* The tgkill syscall was introduced for alpha 2.6.0-test1 which unfortunately
  24    cannot be distinguished from 2.6.0.  */
  25 #if __LINUX_KERNEL_VERSION >= 132609
  26 # define __ASSUME_TGKILL        1
  27 #endif
  28
  29 /* Starting with version 2.6.4, the stat64 syscalls are available.  */
  30 #if __LINUX_KERNEL_VERSION >= 0x020604 && defined __alpha__
  31 # define __ASSUME_STAT64_SYSCALL   1
  32 #endif
  33
  34 #define __ASSUME_UTIMES 1
  35
  36 /* Starting with version 2.6.9, SSI_IEEE_RAISE_EXCEPTION exists.  */
  37 #if __LINUX_KERNEL_VERSION >= 0x020609
  38 # define __ASSUME_IEEE_RAISE_EXCEPTION  1
  39 #endif
  40
  41 /* Support for the O_CLOEXEC flag was added for alpha in 2.6.23.  */
  42 #if __LINUX_KERNEL_VERSION >= 0x020617
  43 # define __ASSUME_O_CLOEXEC    1
  44 #endif
  45
  46 /* Support for various CLOEXEC and NONBLOCK flags was added for alpha after
  47    2.6.33-rc1.  */
  48 #if __LINUX_KERNEL_VERSION >= 0x020621
  49 # define __ASSUME_SOCK_CLOEXEC  1
  50 # define __ASSUME_IN_NONBLOCK   1
  51 #endif
  52
  53 /* Support for the pipe2, eventfd2, signalfd4 syscalls was added for alpha
  54    after 2.6.33-rc1.  */
  55 #if __LINUX_KERNEL_VERSION >= 0x020621
  56 # define __ASSUME_PIPE2     1
  57 # define __ASSUME_EVENTFD2  1
  58 # define __ASSUME_SIGNALFD4 1
  59 #endif
  60
  61 /* Support for accept4 was added for alpha after 2.6.33-rc1.  */
  62 #if __LINUX_KERNEL_VERSION >= 0x020621
  63 # define __ASSUME_ACCEPT4      1
  64 #endif
  65
  66 #include_next <kernel-features.h>
  67
  68 #undef __ASSUME_ST_INO_64_BIT
  69
  70 /* pselect/ppoll were introduced on alpha just after 2.6.22-rc1.  */
  71 #if __LINUX_KERNEL_VERSION < 0x020617
  72 # undef __ASSUME_PSELECT
  73 # undef __ASSUME_PPOLL
  74 #endif
  75
  76 /* The *at syscalls were introduced on alpha just after 2.6.22-rc1.  */
  77 #if __LINUX_KERNEL_VERSION < 0x020617
  78 # undef __ASSUME_ATFCTS
  79 #endif
  80
  81 /* Support for inter-process robust mutexes was added on alpha just
  82    after 2.6.22-rc1.  */
  83 #if __LINUX_KERNEL_VERSION < 0x020617
  84 # undef __ASSUME_SET_ROBUST_LIST
  85 #endif
  86
  87 /* Support for utimensat was added on alpha after 2.6.22-rc1.  */
  88 #if __LINUX_KERNEL_VERSION < 0x020617
  89 # undef __ASSUME_UTIMENSAT
  90 #endif
  91
  92 /* Support for fallocate was added for alpha after 2.6.33-rc1.  */
  93 #if __LINUX_KERNEL_VERSION < 0x020621
  94 # undef __ASSUME_FALLOCATE
  95 #endif
  96
  97 /* There never has been support for fstat64.  */
  98 #undef __ASSUME_STATFS64
  99 #define __ASSUME_STATFS64 0
 100
 101 #endif /* _KERNEL_FEATURES_H */