sysdeps/unix/sysv/linux/i386/kernel-features.h

   1 /* Set flags signalling availability of kernel features based on given
   2    kernel version number.  i386 version.
   3    Copyright (C) 1999-2023 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    <https://www.gnu.org/licenses/>.  */
  19
  20 /* Direct socketcalls available with kernel 4.3.  */
  21 #if __LINUX_KERNEL_VERSION >= 0x040300
  22 # define __ASSUME_GETSOCKNAME_SYSCALL        1
  23 # define __ASSUME_GETPEERNAME_SYSCALL        1
  24 #endif
  25
  26 #include_next <kernel-features.h>
  27
  28 #undef __ASSUME_ACCEPT_SYSCALL
  29
  30 /* Direct socketcalls available with kernel 4.3.  */
  31 #if __LINUX_KERNEL_VERSION < 0x040300
  32 # undef __ASSUME_ACCEPT4_SYSCALL
  33 # undef __ASSUME_SENDMSG_SYSCALL
  34 # undef __ASSUME_RECVMSG_SYSCALL
  35 # undef __ASSUME_CONNECT_SYSCALL
  36 # undef __ASSUME_RECVFROM_SYSCALL
  37 # undef __ASSUME_SENDTO_SYSCALL
  38 # undef __ASSUME_GETSOCKOPT_SYSCALL
  39 # undef __ASSUME_SETSOCKOPT_SYSCALL
  40 # undef __ASSUME_BIND_SYSCALL
  41 # undef __ASSUME_SOCKET_SYSCALL
  42 # undef __ASSUME_SOCKETPAIR_SYSCALL
  43 # undef __ASSUME_LISTEN_SYSCALL
  44 # undef __ASSUME_SHUTDOWN_SYSCALL
  45 #endif
  46
  47 /* i686 only supports ipc syscall before 5.1.  */
  48 #if __LINUX_KERNEL_VERSION < 0x050100
  49 # undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
  50 # undef __ASSUME_SYSVIPC_DEFAULT_IPC_64
  51 #endif
  52
  53 #undef __ASSUME_CLONE_DEFAULT
  54 #define __ASSUME_CLONE_BACKWARDS        1