build: add workarounds for Windows helloworld

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>
Acked-by: Harini Ramakrishnan <harini.ramakrishnan@microsoft.com>

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',

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')
 

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',

examples/meson.build

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2017 Intel Corporation
+# Copyright(c) 2017-2019 Intel Corporation
 
 driver_libs = []
 if get_option('default_library') == 'static'
@@ -36,6 +36,9 @@ foreach example: examples
 	ext_deps = [execinfo]
 	includes = [include_directories(example)]
 	deps = ['eal', 'mempool', 'net', 'mbuf', 'ethdev', 'cmdline']
+	if host_machine.system() == 'windows'
+		deps = ['eal'] # only supported lib on Windows currently
+	endif
 	subdir(example)
 
 	if build

lib/librte_eal/windows/eal/meson.build

@@ -7,6 +7,12 @@ env_objs = []
 env_headers = files(
 	'include/rte_os.h',
 )
+common_sources = files(
+	'../../common/eal_common_errno.c',
+	'../../common/eal_common_launch.c',
+	'../../common/eal_common_lcore.c',
+	'../../common/eal_common_log.c'
+)
 env_sources = files('eal.c',
 	'eal_debug.c',
 	'eal_lcore.c',

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'] # only supported libraries for windows
+endif
+
 default_cflags = machine_args
 if cc.has_argument('-Wno-format-truncation')
 	default_cflags += '-Wno-format-truncation'