validation: Test C libary functions

The test source code is generated from specification items
by the "./spec2modules.py" script contained in the
git://git.rtems.org/rtems-central.git Git repository.

Please read the "How-To" section in the "Software Requirements Engineering"
chapter of the RTEMS Software Engineering manual to get more information about
the process.

Update #3716.

testsuites/validation/tc-c.c

@@ -0,0 +1,189 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestCaseCValC
+ */
+
+/*
+ * Copyright (C) 2021 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.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems.h>
+#include <string.h>
+
+#include <rtems/test.h>
+
+/**
+ * @defgroup RTEMSTestCaseCValC spec:/c/val/c
+ *
+ * @ingroup RTEMSTestSuiteTestsuitesValidationNoClock0
+ *
+ * @brief Tests C library functions.
+ *
+ * This test case performs the following actions:
+ *
+ * - Call memcpy() for a sample set of buffers.
+ *
+ * - Call memset() for a sample set of buffers.
+ *
+ * @{
+ */
+
+static void Clear( volatile uint8_t *b, const volatile uint8_t *e )
+{
+  while ( b != e ) {
+    *b = 0;
+    ++b;
+  }
+}
+
+static bool Compare(
+  volatile uint8_t       *b,
+  const volatile uint8_t *e,
+  uint8_t                 expected
+)
+{
+  bool result;
+
+  result = true;
+
+  while ( b != e ) {
+    result = result && *b == expected;
+    ++b;
+  }
+
+  return result;
+}
+
+/**
+ * @brief Call memcpy() for a sample set of buffers.
+ */
+static void CValC_Action_0( void )
+{
+  uint8_t  src[sizeof( long ) * 10];
+  uint8_t  dst[sizeof( long ) * 10];
+  uint8_t *begin;
+  uint8_t *end;
+  uint8_t *aligned_src;
+  uint8_t *aligned_dst;
+  size_t   offset_src;
+
+  memset( src, 0x85, sizeof( src ) );
+  begin = dst;
+  end = begin + sizeof( dst );
+  aligned_src = (uint8_t *) RTEMS_ALIGN_UP( (uintptr_t) src, sizeof( long ) );
+  aligned_dst = (uint8_t *) RTEMS_ALIGN_UP( (uintptr_t) dst, sizeof( long ) );
+
+  for ( offset_src = 0; offset_src < sizeof( long ); ++offset_src  ) {
+    size_t offset_dst;
+
+    for ( offset_dst = 0; offset_dst < sizeof( long ); ++offset_dst  ) {
+      size_t size;
+
+      for ( size = 0; size < sizeof( long ) * 8; ++size ) {
+        uint8_t *s;
+        uint8_t *p;
+        uint8_t *q;
+
+        s = aligned_src + offset_src;
+        p = aligned_dst + offset_dst;
+        q = p + size;
+
+        Clear( begin, end );
+        memcpy( p, s, size );
+        T_true( Compare( begin, p, 0 ) );
+        T_true( Compare( p, q, 0x85 ) );
+        T_true( Compare( q, end, 0 ) );
+      }
+    }
+  }
+}
+
+/**
+ * @brief Call memset() for a sample set of buffers.
+ */
+static void CValC_Action_1( void )
+{
+  uint8_t  dst[sizeof( long ) * 10];
+  uint8_t *begin;
+  uint8_t *end;
+  uint8_t *aligned;
+  size_t   offset;
+
+  begin = dst;
+  end = begin + sizeof( dst );
+  aligned = (uint8_t *) RTEMS_ALIGN_UP( (uintptr_t) dst, sizeof( long ) );
+
+  for ( offset = 0; offset < sizeof( long ); ++offset  ) {
+    size_t size;
+
+    for ( size = 0; size < sizeof( long ) * 8; ++size ) {
+      uint8_t *p;
+      uint8_t *q;
+
+      p = aligned + offset;
+      q = p + size;
+
+      Clear( begin, end );
+      memset( p, 0x85, size );
+      T_true( Compare( begin, p, 0 ) );
+      T_true( Compare( p, q, 0x85 ) );
+      T_true( Compare( q, end, 0 ) );
+    }
+  }
+}
+
+/**
+ * @fn void T_case_body_CValC( void )
+ */
+T_TEST_CASE( CValC )
+{
+  CValC_Action_0();
+  CValC_Action_1();
+}
+
+/** @} */