ports/sysdeps/unix/sysv/linux/arm/kernel-features.h

   1 /* Set flags signalling availability of kernel features based on given
   2    kernel version number.
   3    Copyright (C) 2006-2012 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 /* The utimes syscall was added before 2.6.1.  */
  21 #if __LINUX_KERNEL_VERSION >= 132609
  22 # define __ASSUME_UTIMES        1
  23 #endif
  24
  25 /* On ARM the mmap2/stat64/lstat64/fstat64 syscalls were introduced in
  26    2.3.35.  */
  27 #define __ASSUME_MMAP2_SYSCALL          1
  28 #define __ASSUME_STAT64_SYSCALL 1
  29
  30 /* Arm got fcntl64 in 2.4.4.  */
  31 #define __ASSUME_FCNTL64                1
  32
  33 /* The signal frame layout changed in 2.6.18.  */
  34 #if __LINUX_KERNEL_VERSION >= 132626
  35 # define __ASSUME_SIGFRAME_V2   1
  36 #endif
  37
  38 /* Support for the eventfd2 and signalfd4 syscalls was added in 2.6.27.  */
  39 #if __LINUX_KERNEL_VERSION >= 0x02061b
  40 # define __ASSUME_EVENTFD2      1
  41 # define __ASSUME_SIGNALFD4     1
  42 #endif
  43
  44 /* Support for the accept4 syscall was added in 2.6.36.  */
  45 #if __LINUX_KERNEL_VERSION >= 0x020624
  46 # define __ASSUME_ACCEPT4       1
  47 #endif
  48
  49 #include_next <kernel-features.h>
  50
  51 /* Support for pselect6, ppoll and epoll_pwait was added in 2.6.32.  */
  52 #if __LINUX_KERNEL_VERSION < 0x020620
  53 # undef __ASSUME_PSELECT
  54 # undef __ASSUME_PPOLL
  55 #endif