--- /dev/null
+/*
+ * Copyright (c) 2011 ARM Ltd
+ * All rights reserved.
+ *
+ * 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.
+ * 3. The name of the company may not be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ARM LTD ``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 ARM LTD 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.
+ */
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#ifndef BUFF_SIZE
+#define BUFF_SIZE 1024
+#endif
+
+#ifndef START_COPY
+#define START_COPY 256
+#endif
+
+#ifndef MAX_BLOCK_SIZE
+#define MAX_BLOCK_SIZE 128
+#endif
+
+#ifndef MAX_OFFSET
+#define MAX_OFFSET 3
+#endif
+
+#if (START_COPY + MAX_OFFSET + MAX_BLOCK_SIZE >= BUFF_SIZE)
+#error "Buffer overrun: START_COPY + MAX_OFFSET + MAX_BLOCK_SIZE >= BUFF_SIZE."
+#endif
+
+#define TOO_MANY_ERRORS 11
+int errors = 0;
+
+void
+print_error (char const* msg, ...)
+{
+ errors++;
+ if (errors == TOO_MANY_ERRORS)
+ {
+ fprintf (stderr, "Too many errors.\n");
+ }
+ else if (errors < TOO_MANY_ERRORS)
+ {
+ va_list ap;
+ va_start (ap, msg);
+ vfprintf (stderr, msg, ap);
+ va_end (ap);
+ }
+ else
+ {
+ /* Further errors omitted. */
+ }
+}
+
+int
+main (void)
+{
+ /* Allocate buffers to read and write from. */
+ char src[BUFF_SIZE], dest[BUFF_SIZE], backup_src[BUFF_SIZE];
+
+ /* Fill the source buffer with non-null values, reproducable random data. */
+ srand (1539);
+ int i, j;
+ unsigned sa;
+ unsigned da;
+ unsigned n;
+ for (i = 0; i < BUFF_SIZE; i++)
+ {
+ src[i] = (char)rand () | 1;
+ backup_src[i] = src[i];
+ }
+
+ /* Make calls to memcpy with block sizes ranging between 1 and
+ MAX_BLOCK_SIZE bytes, aligned and misaligned source and destination. */
+ for (sa = 0; sa <= MAX_OFFSET; sa++)
+ for (da = 0; da <= MAX_OFFSET; da++)
+ for (n = 1; n <= MAX_BLOCK_SIZE; n++)
+ {
+ printf (".");
+ /* Zero dest so we can check it properly after the copying. */
+ for (j = 0; j < BUFF_SIZE; j++)
+ dest[j] = 0;
+
+ void *ret = memcpy (dest + START_COPY + da, src + sa, n);
+
+ /* Check return value. */
+ if (ret != (dest + START_COPY + da))
+ print_error ("\nFailed: wrong return value in memcpy of %u bytes "
+ "with src_align %u and dst_align %u. "
+ "Return value and dest should be the same"
+ "(ret is %p, dest is %p)\n",
+ n, sa, da, ret, dest + START_COPY + da);
+
+ /* Check that content of the destination buffer
+ is the same as the source buffer, and
+ memory outside destination buffer is not modified. */
+ for (j = 0; j < BUFF_SIZE; j++)
+ if (j < START_COPY + da)
+ {
+ if (dest[j] != 0)
+ print_error ("\nFailed: after memcpy of %u bytes "
+ "with src_align %u and dst_align %u, "
+ "byte %u before the start of dest is not 0.\n",
+ n, sa, da, START_COPY - j);
+ }
+ else if (j < START_COPY + da + n)
+ {
+ i = j - START_COPY - da;
+ if (dest[j] != (src + sa)[i])
+ print_error ("\nFailed: after memcpy of %u bytes "
+ "with src_align %u and dst_align %u, "
+ "byte %u in dest and src are not the same.\n",
+ n, sa, da, i);
+ }
+ else if (dest[j] != 0)
+ {
+ print_error ("\nFailed: after memcpy of %u bytes "
+ "with src_align %u and dst_align %u, "
+ "byte %u after the end of dest is not 0.\n",
+ n, sa, da, j - START_COPY - da - n);
+ }
+
+ /* Check src is not modified. */
+ for (j = 0; j < BUFF_SIZE; j++)
+ if (src[i] != backup_src[i])
+ print_error ("\nFailed: after memcpy of %u bytes "
+ "with src_align %u and dst_align %u, "
+ "byte %u of src is modified.\n",
+ n, sa, da, j);
+ }
+
+ printf ("\n");
+ if (errors != 0)
+ abort ();
+
+ exit (0);
+}
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