[rtems commit] config: Add zero file descriptor data structures

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    6e6e23384fe5ea7b37c0b56066221f1273cd4abb
Changeset: http://git.rtems.org/rtems/commit/?id=6e6e23384fe5ea7b37c0b56066221f1273cd4abb

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Mon Aug 31 17:27:44 2020 +0200

config: Add zero file descriptor data structures

Fix linker errors in the minimum test program on some BSPs introduced by
ced28f2cfcee6d32ad7bb72e16b235212eb2eaaf.

---

 cpukit/Makefile.am                     |  1 +
 cpukit/libcsupport/src/libiozeroiops.c | 46 ++++++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+)

diff --git a/cpukit/Makefile.am b/cpukit/Makefile.am
index 1ea3def..4b794c5 100644
--- a/cpukit/Makefile.am
+++ b/cpukit/Makefile.am
@@ -165,6 +165,7 @@ librtemscpu_a_SOURCES += libcsupport/src/lchown.c
 librtemscpu_a_SOURCES += libcsupport/src/libio.c
 librtemscpu_a_SOURCES += libcsupport/src/libio_exit.c
 librtemscpu_a_SOURCES += libcsupport/src/libio_init.c
+librtemscpu_a_SOURCES += libcsupport/src/libiozeroiops.c
 librtemscpu_a_SOURCES += libcsupport/src/link.c
 librtemscpu_a_SOURCES += libcsupport/src/lseek.c
 librtemscpu_a_SOURCES += libcsupport/src/lstat.c
diff --git a/cpukit/libcsupport/src/libiozeroiops.c b/cpukit/libcsupport/src/libiozeroiops.c
new file mode 100644
index 0000000..b4533c7
--- /dev/null
+++ b/cpukit/libcsupport/src/libiozeroiops.c
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup LibIOInternal
+ *
+ * @brief This source file provides rtems_libio_iops and
+ *   rtems_libio_number_iops for a zero file descriptor application
+ *   configuration.
+ */
+
+/*
+ * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/libio_.h>
+
+rtems_libio_t rtems_libio_iops[ 0 ];
+
+const uint32_t rtems_libio_number_iops = 0;