[dpdk-dev] [PATCH v6 8/8] build: meson changes to build on windows

[Anand Rawat <anand.rawat@intel.com>]

Added meson workarounds to build helloworld on windows.
Windows currently only supports kvargs and eal libraries.
This change restricts the build flow to supported libraries
only.

Signed-off-by: Anand Rawat <anand.rawat@intel.com>
Signed-off-by: Pallavi Kadam <pallavi.kadam@intel.com>
Reviewed-by: Jeff Shaw <jeffrey.b.shaw@intel.com>
Reviewed-by: Ranjit Menon <ranjit.menon@intel.com>
---
 app/meson.build                   |  6 +++++-
 buildtools/meson.build            |  6 +++++-
 drivers/meson.build               |  6 +++++-
 examples/meson.build              |  6 +++++-
 kernel/windows/meson.build        |  4 ++++
 lib/librte_eal/common/meson.build | 14 +++++++++-----
 lib/meson.build                   |  4 ++++
 7 files changed, 37 insertions(+), 9 deletions(-)
 create mode 100644 kernel/windows/meson.build

diff --git a/app/meson.build b/app/meson.build
index aa353f657..e949624b7 100644
--- a/app/meson.build
+++ b/app/meson.build
@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2017 Intel Corporation
+# Copyright(c) 2017-2019 Intel Corporation
+
+if host_machine.system() == 'windows'
+	subdir_done()
+endif
 
 apps = [
 	'pdump',
diff --git a/buildtools/meson.build b/buildtools/meson.build
index cdd38ed24..0209bec8f 100644
--- a/buildtools/meson.build
+++ b/buildtools/meson.build
@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2017 Intel Corporation
+# Copyright(c) 2017-2019 Intel Corporation
+
+if host_machine.system() == 'windows'
+	subdir_done()
+endif
 
 subdir('pmdinfogen')
 
diff --git a/drivers/meson.build b/drivers/meson.build
index 8c76a5659..7520a16e3 100644
--- a/drivers/meson.build
+++ b/drivers/meson.build
@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2017 Intel Corporation
+# Copyright(c) 2017-2019 Intel Corporation
+
+if host_machine.system() == 'windows'
+	subdir_done()
+endif
 
 # Defines the order in which the drivers are buit.
 dpdk_driver_classes = ['common',
diff --git a/examples/meson.build b/examples/meson.build
index af81c762e..bc1430fa8 100644
--- a/examples/meson.build
+++ b/examples/meson.build
@@ -35,7 +35,11 @@ foreach example: examples
 
 	ext_deps = [execinfo]
 	includes = [include_directories(example)]
-	deps = ['eal', 'mempool', 'net', 'mbuf', 'ethdev', 'cmdline']
+	if host_machine.system() != 'windows'
+		deps = ['eal', 'mempool', 'net', 'mbuf', 'ethdev', 'cmdline']
+	else
+		deps = ['eal'] # only supported lib on windows currently
+	endif
 	subdir(example)
 
 	if build
diff --git a/kernel/windows/meson.build b/kernel/windows/meson.build
new file mode 100644
index 000000000..c4a2a656a
--- /dev/null
+++ b/kernel/windows/meson.build
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2019 Intel Corporation
+
+# stub file for supporting windows logic in future release
\ No newline at end of file
diff --git a/lib/librte_eal/common/meson.build b/lib/librte_eal/common/meson.build
index 5ecae0b1f..e9021c00c 100644
--- a/lib/librte_eal/common/meson.build
+++ b/lib/librte_eal/common/meson.build
@@ -1,23 +1,26 @@
 # SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2017 Intel Corporation
+# Copyright(c) 2017-2019 Intel Corporation
 
 eal_inc += include_directories('.', 'include',
 		join_paths('include/arch', arch_subdir))
 
 common_objs = []
+common_sources = files(
+		'eal_common_errno.c',
+		'eal_common_launch.c',
+		'eal_common_lcore.c',
+		'eal_common_log.c'
+	)
+if host_machine.system() != 'windows'
 common_sources = files(
 	'eal_common_bus.c',
 	'eal_common_cpuflags.c',
 	'eal_common_class.c',
 	'eal_common_devargs.c',
 	'eal_common_dev.c',
-	'eal_common_errno.c',
 	'eal_common_fbarray.c',
 	'eal_common_hexdump.c',
 	'eal_common_hypervisor.c',
-	'eal_common_launch.c',
-	'eal_common_lcore.c',
-	'eal_common_log.c',
 	'eal_common_memalloc.c',
 	'eal_common_memory.c',
 	'eal_common_memzone.c',
@@ -38,6 +41,7 @@ common_sources = files(
 	'rte_reciprocal.c',
 	'rte_service.c'
 )
+endif
 
 # get architecture specific sources and objs
 eal_common_arch_sources = []
diff --git a/lib/meson.build b/lib/meson.build
index 9cba4662e..d3e556ae3 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -30,6 +30,10 @@ libraries = [
 	# flow_classify lib depends on pkt framework table lib
 	'flow_classify', 'bpf', 'telemetry']
 
+if host_machine.system() == 'windows'
+	libraries = ['kvargs','eal'] # override libraries for windows
+endif
+
 default_cflags = machine_args
 if cc.has_argument('-Wno-format-truncation')
 	default_cflags += '-Wno-format-truncation'
-- 
2.17.1.windows.2