1  /* Set flags signalling availability of kernel features based on given
       2     kernel version number.
       3     Copyright (C) 2010-2023 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_H
      21  #define _KERNEL_FEATURES_H 1
      22  
      23  #include_next <kernel-features.h>
      24  
      25  /* Support for statfs64 was added in 5.1.  */
      26  #if __LINUX_KERNEL_VERSION < 0x050100
      27  # undef __ASSUME_STATFS64
      28  # define __ASSUME_STATFS64 0
      29  #endif
      30  
      31  #define __ASSUME_RECV_SYSCALL	1
      32  #define __ASSUME_SEND_SYSCALL	1
      33  
      34  /* Support for the renameat2 syscall was added in 3.17.  */
      35  #if __LINUX_KERNEL_VERSION < 0x031100
      36  # undef __ASSUME_RENAMEAT2
      37  #endif
      38  
      39  /* Support for the execveat syscall was added in 4.2.  */
      40  #if __LINUX_KERNEL_VERSION < 0x040200
      41  # undef __ASSUME_EXECVEAT
      42  #endif
      43  
      44  /* Support for copy_file_range, statx was added in kernel 4.13.  */
      45  #if __LINUX_KERNEL_VERSION < 0x040D00
      46  # undef __ASSUME_MLOCK2
      47  # undef __ASSUME_STATX
      48  #endif
      49  
      50  /* Alpha requires old sysvipc even being a 64-bit architecture.  */
      51  #undef __ASSUME_SYSVIPC_DEFAULT_IPC_64
      52  
      53  #endif /* _KERNEL_FEATURES_H */