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-rw-r--r--kernel/linux/meson.build42
1 files changed, 42 insertions, 0 deletions
diff --git a/kernel/linux/meson.build b/kernel/linux/meson.build
new file mode 100644
index 00000000..a924c7b6
--- /dev/null
+++ b/kernel/linux/meson.build
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Intel Corporation
+
+subdirs = ['igb_uio']
+
+WARN_CROSS_COMPILE='Need "kernel_dir" option for kmod compilation when cross-compiling'
+WARN_NO_HEADERS='Cannot compile kernel modules as requested - are kernel headers installed?'
+
+# if we are cross-compiling we need kernel_dir specified
+# NOTE: warning() function only available from version 0.44 onwards
+if get_option('kernel_dir') == '' and meson.is_cross_build()
+ if meson.version().version_compare('>=0.44')
+ warning(WARN_CROSS_COMPILE)
+ else
+ message('WARNING: ' + WARN_CROSS_COMPILE)
+ endif
+else
+
+ kernel_dir = get_option('kernel_dir')
+ if kernel_dir == ''
+ # use default path for native builds
+ kernel_version = run_command('uname', '-r').stdout().strip()
+ kernel_dir = '/lib/modules/' + kernel_version + '/build'
+ endif
+
+ # test running make in kernel directory, using "make kernelversion"
+ make_returncode = run_command('make', '-sC', kernel_dir,
+ 'kernelversion').returncode()
+ if make_returncode != 0
+ if meson.version().version_compare('>=0.44')
+ warning(WARN_NO_HEADERS)
+ else
+ message('WARNING: ' + WARN_NO_HEADERS)
+ endif
+ else # returncode == 0
+
+# DO ACTUAL MODULE BUILDING
+ foreach d:subdirs
+ subdir(d)
+ endforeach
+ endif
+endif