1# SPDX-License-Identifier: BSD-3-Clause 2# Copyright(c) 2018 Intel Corporation 3 4subdirs = ['igb_uio', 'kni'] 5 6WARN_CROSS_COMPILE='Need "kernel_dir" option for kmod compilation when cross-compiling' 7WARN_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 11if 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 17else 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 if meson.version().version_compare('>=0.44') 31 warning(WARN_NO_HEADERS) 32 else 33 message('WARNING: ' + WARN_NO_HEADERS) 34 endif 35 else # returncode == 0 36 37# DO ACTUAL MODULE BUILDING 38 foreach d:subdirs 39 subdir(d) 40 endforeach 41 endif 42endif 43