ceph/src/spdk/dpdk/kernel/linux/meson.build

   1 # SPDX-License-Identifier: BSD-3-Clause
   2 # Copyright(c) 2018 Intel Corporation
   3
   4 subdirs = ['igb_uio', 'kni']
   5
   6 WARN_CROSS_COMPILE='Need "kernel_dir" option for kmod compilation when cross-compiling'
   7 WARN_NO_HEADERS='Cannot compile kernel modules as requested - are kernel headers installed?'
   8
   9 # if we are cross-compiling we need kernel_dir specified
  10 # NOTE: warning() function only available from version 0.44 onwards
  11 if get_option('kernel_dir') == '' and meson.is_cross_build()
  12         if meson.version().version_compare('>=0.44')
  13                 warning(WARN_CROSS_COMPILE)
  14         else
  15                 message('WARNING: ' + WARN_CROSS_COMPILE)
  16         endif
  17 else
  18
  19         kernel_dir = get_option('kernel_dir')
  20         if kernel_dir == ''
  21                 # use default path for native builds
  22                 kernel_version = run_command('uname', '-r').stdout().strip()
  23                 kernel_dir = '/lib/modules/' + kernel_version + '/build'
  24         endif
  25
  26         # test running make in kernel directory, using "make kernelversion"
  27         make_returncode = run_command('make', '-sC', kernel_dir,
  28                         'kernelversion').returncode()
  29         if make_returncode != 0
  30                 warning(WARN_NO_HEADERS)
  31         else # returncode == 0
  32
  33 # DO ACTUAL MODULE BUILDING
  34                 foreach d:subdirs
  35                         subdir(d)
  36                 endforeach
  37         endif
  38 endif