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 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, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 /* alpha switched to a 64-bit timeval sometime before 2.2.0.  */
  22 #if __LINUX_KERNEL_VERSION >= 131584
  23 # define __ASSUME_TIMEVAL64     1
  24 #endif
  25
  26 /* The tgkill syscall was introduced for alpha 2.6.0-test1 which unfortunately
  27    cannot be distinguished from 2.6.0.  */
  28 #if __LINUX_KERNEL_VERSION >= 132609
  29 # define __ASSUME_TGKILL        1
  30 #endif
  31
  32 #define __ASSUME_UTIMES 1
  33
  34 /* Starting with version 2.6.9, SSI_IEEE_RAISE_EXCEPTION exists.  */
  35 #if __LINUX_KERNEL_VERSION >= 0x020609
  36 # define __ASSUME_IEEE_RAISE_EXCEPTION  1
  37 #endif
  38
  39 /* Support for the O_CLOEXEC flag was added for alpha in 2.6.23.  */
  40 #if __LINUX_KERNEL_VERSION >= 0x020617
  41 # define __ASSUME_O_CLOEXEC    1
  42 #endif
  43
  44 /* Support for various CLOEXEC and NONBLOCK flags was added for alpha after
  45    2.6.33-rc1.  */
  46 #if __LINUX_KERNEL_VERSION >= 0x020621
  47 # define __ASSUME_SOCK_CLOEXEC  1
  48 # define __ASSUME_IN_NONBLOCK   1
  49 #endif
  50
  51 /* Support for the pipe2, eventfd2, signalfd4 syscalls was added for alpha
  52    after 2.6.33-rc1.  */
  53 #if __LINUX_KERNEL_VERSION >= 0x020621
  54 # define __ASSUME_PIPE2     1
  55 # define __ASSUME_EVENTFD2  1
  56 # define __ASSUME_SIGNALFD4 1
  57 #endif
  58
  59 /* Support for accept4 was added for alpha after 2.6.33-rc1.  */
  60 #if __LINUX_KERNEL_VERSION >= 0x020621
  61 # define __ASSUME_ACCEPT4      1
  62 #endif
  63
  64 #include_next <kernel-features.h>
  65
  66 #undef __ASSUME_ST_INO_64_BIT
  67
  68 /* pselect/ppoll were introduced on alpha just after 2.6.22-rc1.  */
  69 #if __LINUX_KERNEL_VERSION < 0x020617
  70 # undef __ASSUME_PSELECT
  71 # undef __ASSUME_PPOLL
  72 #endif
  73
  74 /* The *at syscalls were introduced on alpha just after 2.6.22-rc1.  */
  75 #if __LINUX_KERNEL_VERSION < 0x020617
  76 # undef __ASSUME_ATFCTS
  77 #endif
  78
  79 /* Support for inter-process robust mutexes was added on alpha just
  80    after 2.6.22-rc1.  */
  81 #if __LINUX_KERNEL_VERSION < 0x020617
  82 # undef __ASSUME_SET_ROBUST_LIST
  83 #endif
  84
  85 /* Support for utimensat was added on alpha after 2.6.22-rc1.  */
  86 #if __LINUX_KERNEL_VERSION < 0x020617
  87 # undef __ASSUME_UTIMENSAT
  88 #endif
  89
  90 /* Support for fallocate was added for alpha after 2.6.33-rc1.  */
  91 #if __LINUX_KERNEL_VERSION < 0x020621
  92 # undef __ASSUME_FALLOCATE
  93 #endif