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 /* Starting with version 2.6.4, the stat64 syscalls are available.  */
  33 #if __LINUX_KERNEL_VERSION >= 0x020604 && defined __alpha__
  34 # define __ASSUME_STAT64_SYSCALL   1
  35 #endif
  36
  37 #define __ASSUME_UTIMES 1
  38
  39 /* Starting with version 2.6.9, SSI_IEEE_RAISE_EXCEPTION exists.  */
  40 #if __LINUX_KERNEL_VERSION >= 0x020609
  41 # define __ASSUME_IEEE_RAISE_EXCEPTION  1
  42 #endif
  43
  44 /* Support for the O_CLOEXEC flag was added for alpha in 2.6.23.  */
  45 #if __LINUX_KERNEL_VERSION >= 0x020617
  46 # define __ASSUME_O_CLOEXEC    1
  47 #endif
  48
  49 /* Support for various CLOEXEC and NONBLOCK flags was added for alpha after
  50    2.6.33-rc1.  */
  51 #if __LINUX_KERNEL_VERSION >= 0x020621
  52 # define __ASSUME_SOCK_CLOEXEC  1
  53 # define __ASSUME_IN_NONBLOCK   1
  54 #endif
  55
  56 /* Support for the pipe2, eventfd2, signalfd4 syscalls was added for alpha
  57    after 2.6.33-rc1.  */
  58 #if __LINUX_KERNEL_VERSION >= 0x020621
  59 # define __ASSUME_PIPE2     1
  60 # define __ASSUME_EVENTFD2  1
  61 # define __ASSUME_SIGNALFD4 1
  62 #endif
  63
  64 /* Support for accept4 was added for alpha after 2.6.33-rc1.  */
  65 #if __LINUX_KERNEL_VERSION >= 0x020621
  66 # define __ASSUME_ACCEPT4      1
  67 #endif
  68
  69 #include_next <kernel-features.h>
  70
  71 #undef __ASSUME_ST_INO_64_BIT
  72
  73 /* pselect/ppoll were introduced on alpha just after 2.6.22-rc1.  */
  74 #if __LINUX_KERNEL_VERSION < 0x020617
  75 # undef __ASSUME_PSELECT
  76 # undef __ASSUME_PPOLL
  77 #endif
  78
  79 /* The *at syscalls were introduced on alpha just after 2.6.22-rc1.  */
  80 #if __LINUX_KERNEL_VERSION < 0x020617
  81 # undef __ASSUME_ATFCTS
  82 #endif
  83
  84 /* Support for inter-process robust mutexes was added on alpha just
  85    after 2.6.22-rc1.  */
  86 #if __LINUX_KERNEL_VERSION < 0x020617
  87 # undef __ASSUME_SET_ROBUST_LIST
  88 #endif
  89
  90 /* Support for utimensat was added on alpha after 2.6.22-rc1.  */
  91 #if __LINUX_KERNEL_VERSION < 0x020617
  92 # undef __ASSUME_UTIMENSAT
  93 #endif
  94
  95 /* Support for fallocate was added for alpha after 2.6.33-rc1.  */
  96 #if __LINUX_KERNEL_VERSION < 0x020621
  97 # undef __ASSUME_FALLOCATE
  98 #endif