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

   1 /* Set flags signalling availability of kernel features based on given
   2    kernel version number.  SH version.
   3    Copyright (C) 1999-2024 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 #ifndef __KERNEL_FEATURES_SH__
  21 # define __KERNEL_FEATURES_SH__
  22
  23 #include <endian.h>
  24
  25 /* These syscalls were added for SH in 2.6.37.  */
  26 #define __ASSUME_CONNECT_SYSCALL        1
  27 #define __ASSUME_SEND_SYSCALL           1
  28 #define __ASSUME_RECV_SYSCALL           1
  29
  30 #include_next <kernel-features.h>
  31
  32 /* SH4 ABI does not really require argument alignment for 64-bits, but
  33    the kernel interface for p{read,write}64 adds a dummy long argument
  34    before the offset.  */
  35 #define __ASSUME_PRW_DUMMY_ARG  1
  36
  37 /* sh only supports ipc syscall before 5.1.  */
  38 #if __LINUX_KERNEL_VERSION < 0x050100
  39 # undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
  40 # undef __ASSUME_SYSVIPC_DEFAULT_IPC_64
  41 #endif
  42 #if __BYTE_ORDER == __BIG_ENDIAN
  43 # define __ASSUME_SYSVIPC_BROKEN_MODE_T
  44 #endif
  45
  46 /* Support for several syscalls was added in 4.8.  */
  47 #if __LINUX_KERNEL_VERSION < 0x040800
  48 # undef __ASSUME_RENAMEAT2
  49 # undef __ASSUME_EXECVEAT
  50 # undef __ASSUME_MLOCK2
  51 #endif
  52
  53 /* sh does not support the statx system call before 5.1.  */
  54 #if __LINUX_KERNEL_VERSION < 0x050100
  55 # undef __ASSUME_STATX
  56 #endif
  57
  58 /* sh does not provide clone3.  */
  59 #undef __ASSUME_CLONE3
  60 #define __ASSUME_CLONE3 0
  61
  62 #endif