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) 1999-2016 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 #include_next <kernel-features.h>
  23
  24 /* The MIPS kernel does not support futex_atomic_cmpxchg_inatomic if
  25    emulating LL/SC.  */
  26 #if __mips == 1 || defined _MIPS_ARCH_R5900
  27 # undef __ASSUME_FUTEX_LOCK_PI
  28 # undef __ASSUME_REQUEUE_PI
  29 # undef __ASSUME_SET_ROBUST_LIST
  30 #endif
  31
  32 /* Define this if your 32-bit syscall API requires 64-bit register
  33    pairs to start with an even-number register.  */
  34 #if _MIPS_SIM == _ABIO32
  35 # define __ASSUME_ALIGNED_REGISTER_PAIRS        1
  36 #endif
  37
  38 /* Define that mips64-n32 is a ILP32 ABI to set the correct interface to
  39    pass 64-bits values through syscalls.  */
  40 #if _MIPS_SIM == _ABIN32
  41 # define __ASSUME_WORDSIZE64_ILP32      1
  42 # define __ASSUME_OFF_DIFF_OFF64        1
  43 #endif