1  #!/usr/bin/python3
       2  # Test that glibc's sys/pidfd.h constants match the kernel's.
       3  # Copyright (C) 2022-2023 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  import argparse
      21  import sys
      22  
      23  import glibcextract
      24  import glibcsyscalls
      25  
      26  
      27  def main():
      28      """The main entry point."""
      29      parser = argparse.ArgumentParser(
      30          description="Test that glibc's sys/pidfd.h constants "
      31          "match the kernel's.")
      32      parser.add_argument('--cc', metavar='CC',
      33                          help='C compiler (including options) to use')
      34      args = parser.parse_args()
      35  
      36      if glibcextract.compile_c_snippet(
      37              '#include <linux/pidfd.h>',
      38              args.cc).returncode != 0:
      39          sys.exit (77)
      40  
      41      linux_version_headers = glibcsyscalls.linux_kernel_version(args.cc)
      42      linux_version_glibc = (6, 3)
      43      sys.exit(glibcextract.compare_macro_consts(
      44                  '#include <sys/pidfd.h>\n',
      45                  '#include <asm/fcntl.h>\n'
      46                  '#include <linux/pidfd.h>\n',
      47                  args.cc,
      48                  'PIDFD_.*',
      49                  None,
      50                  linux_version_glibc > linux_version_headers,
      51                  linux_version_headers > linux_version_glibc))
      52  
      53  if __name__ == '__main__':
      54      main()