1  /* Set flags signalling availability of kernel features based on given
       2     kernel version number.  SH 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  #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  #endif