added recent changes

KernelModule/meson.build

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+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Intel Corporation
+
+kmods = ['Hugepages']
+
+# for building kernel modules, we use kernel build system using make, as
+# with Linux. We have a skeleton BSDmakefile, which pulls many of its
+# values from the environment. Each module only has a single source file
+# right now, which allows us to simplify things. We pull in the sourcer
+# files from the individual meson.build files, and then use a custom
+# target to call make, passing in the values as env parameters.
+kmod_cflags = ['-I' + dpdk_build_root,
+        '-I' + join_paths(dpdk_source_root, 'config'),
+        '-include rte_config.h']
+
+kmod_arch = 'MACHINE_ARCH_NULL='
+kmod_arch = 'MACHINE_ARCH=aarch64'
+
+# to avoid warnings due to race conditions with creating the dev_if.h, etc.
+# files, serialize the kernel module builds. Each module will depend on
+# previous ones
+built_kmods = []
+foreach k:kmods
+    subdir(k)
+    built_kmods += custom_target(k,
+            input: [files('BSDmakefile.meson'), sources],
+            output: k + '.ko',
+            command: ['make', '-f', '@INPUT0@',
+                'KMOD_OBJDIR=@OUTDIR@',
+                'KMOD_SRC=@INPUT1@',
+                'KMOD=' + k,
+                'KMOD_CFLAGS=' + ' '.join(kmod_cflags),
+                'CC=clang',
+                kmod_arch],
+            depends: built_kmods, # make each module depend on prev
+            build_by_default: get_option('enable_kmods'),
+            install: get_option('enable_kmods'),
+            install_dir: '/boot/modules/')
+endforeach