sysdeps/unix/sysv/linux/mips/kernel-features.h

   1 /* Set flags signalling availability of kernel features based on given
   2    kernel version number.
   3    Copyright (C) 1999-2015 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 #include <sgidefs.h>
  21
  22 /* Support for the accept4 syscall was added in 2.6.31.  */
  23 #define __ASSUME_ACCEPT4_SYSCALL        1
  24
  25 /* Support for the recvmmsg syscall was added in 2.6.33.  */
  26 #if __LINUX_KERNEL_VERSION >= 0x020621
  27 # define __ASSUME_RECVMMSG_SYSCALL      1
  28 #endif
  29
  30 /* Support for the sendmmsg syscall was added in 3.1.  */
  31 #if __LINUX_KERNEL_VERSION >= 0x030100
  32 # define __ASSUME_SENDMMSG_SYSCALL      1
  33 #endif
  34
  35 #include_next <kernel-features.h>
  36
  37 /* The n32 syscall ABI did not have a getdents64 syscall until
  38    2.6.35.  */
  39 #if _MIPS_SIM == _ABIN32 && __LINUX_KERNEL_VERSION < 0x020623
  40 # undef __ASSUME_GETDENTS64_SYSCALL
  41 #endif
  42
  43 /* The MIPS kernel does not support futex_atomic_cmpxchg_inatomic if
  44    emulating LL/SC.  */
  45 #if __mips == 1 || defined _MIPS_ARCH_R5900
  46 # undef __ASSUME_FUTEX_LOCK_PI
  47 # undef __ASSUME_REQUEUE_PI
  48 # undef __ASSUME_SET_ROBUST_LIST
  49 #endif