[dpdk-dev] [RFCv2 32/40] igb_uio: add igb_uio to meson build

[Bruce Richardson]

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
---
 lib/librte_eal/linuxapp/igb_uio/Kbuild      |  1 +
 lib/librte_eal/linuxapp/igb_uio/meson.build | 47 +++++++++++++++++++++++++++++
 lib/librte_eal/linuxapp/meson.build         | 10 ++++++
 meson_options.txt                           |  4 ++-
 4 files changed, 61 insertions(+), 1 deletion(-)
 create mode 100644 lib/librte_eal/linuxapp/igb_uio/Kbuild
 create mode 100644 lib/librte_eal/linuxapp/igb_uio/meson.build

diff --git a/lib/librte_eal/linuxapp/igb_uio/Kbuild b/lib/librte_eal/linuxapp/igb_uio/Kbuild
new file mode 100644
index 000000000..98c98fe52
--- /dev/null
+++ b/lib/librte_eal/linuxapp/igb_uio/Kbuild
@@ -0,0 +1 @@
+obj-m := igb_uio.o
diff --git a/lib/librte_eal/linuxapp/igb_uio/meson.build b/lib/librte_eal/linuxapp/igb_uio/meson.build
new file mode 100644
index 000000000..c046e1d66
--- /dev/null
+++ b/lib/librte_eal/linuxapp/igb_uio/meson.build
@@ -0,0 +1,47 @@
+#   BSD LICENSE
+#
+#   Copyright(c) 2017 Intel Corporation. All rights reserved.
+#   All rights reserved.
+#
+#   Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions
+#   are met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in
+#       the documentation and/or other materials provided with the
+#       distribution.
+#     * Neither the name of Intel Corporation nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+mkfile = custom_target('igb_uio_makefile',
+	output: 'Makefile',
+	command: ['touch', '@OUTPUT@'])
+
+custom_target('igb_uio',
+	input: ['igb_uio.c', 'Kbuild'],
+	output: 'igb_uio.ko',
+	command: ['make', '-C', kernel_dir,
+		'M=' + meson.current_build_dir(),
+		'src=' + meson.current_source_dir(),
+		'EXTRA_CFLAGS=-I' + meson.current_source_dir() +
+			'/../../common/include',
+		'modules'],
+	depends: mkfile,
+	depend_files: [join_paths(kernel_dir, 'Kconfig')],
+	build_by_default: true)
diff --git a/lib/librte_eal/linuxapp/meson.build b/lib/librte_eal/linuxapp/meson.build
index bc9f22175..88164f297 100644
--- a/lib/librte_eal/linuxapp/meson.build
+++ b/lib/librte_eal/linuxapp/meson.build
@@ -30,3 +30,13 @@
 #   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 subdir('eal')
+
+if get_option('enable_kmods')
+	kernel_dir = get_option('kernel_dir')
+	if kernel_dir == ''
+		kernel_version = run_command('uname', '-r').stdout().strip()
+		kernel_dir = '/lib/modules/' + kernel_version + '/build'
+	endif
+
+	subdir('igb_uio')
+endif
\ No newline at end of file
diff --git a/meson_options.txt b/meson_options.txt
index 8f1db5330..9c45b8159 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -3,4 +3,6 @@ option('max_lcores', type: 'string', value: '128', description: 'maximum number
 option('max_numa_nodes', type: 'string', value: '4', description: 'maximum number of NUMA nodes supported by EAL')
 option('use_hpet', type: 'boolean', value: false, description: 'use HPET timer in EAL')
 option('allow_invalid_socket_id', type: 'boolean', value: false,
-	 description: 'allow out-of-range NUMA socket id\'s for platforms that don\'t report the value correctly')
+	description: 'allow out-of-range NUMA socket id\'s for platforms that don\'t report the value correctly')
+option('enable_kmods', type: 'boolean', value: true, description: 'build kernel modules')
+option('kernel_dir', type: 'string', value: '', description: 'path to the kernel for building kernel modules')
-- 
2.13.4