eal/windows: support logging

Initialize logging on Windows to send log output
to the console.

Signed-off-by: Pallavi Kadam <pallavi.kadam@intel.com>
Reviewed-by: Ranjit Menon <ranjit.menon@intel.com>
Reviewed-by: Tasnim Bashar <tbashar@mellanox.com>
Tested-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Tested-by: Narcisa Vasile <navasile@linux.microsoft.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>

lib/librte_eal/windows/eal.c

@@ -227,6 +227,8 @@ rte_eal_init(int argc, char **argv)
 {
 	int i, fctret;
 
+	rte_eal_log_init(NULL, 0);
+
 	eal_log_level_parse(argc, argv);
 
 	/* create a map of all processors in the system */

lib/librte_eal/windows/eal_log.c

@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017-2018 Intel Corporation
+ */
+
+#include "eal_private.h"
+
+/* set the log to default function, called during eal init process. */
+int
+rte_eal_log_init(__rte_unused const char *id, __rte_unused int facility)
+{
+	rte_openlog_stream(stderr);
+
+	eal_log_set_default(stderr);
+
+	return 0;
+}

lib/librte_eal/windows/meson.build

@@ -7,6 +7,7 @@ sources += files(
 	'eal.c',
 	'eal_debug.c',
 	'eal_lcore.c',
+	'eal_log.c',
 	'eal_thread.c',
 	'fnmatch.c',
 	'getopt.c',