2011-10-04 Greta Yorsh <Greta.Yorsh@arm.com>

        * testsuite/newlib.string/memcpy-1.c: New test.

1 files changed, 160 insertions, 0 deletions

diff --git a/newlib/testsuite/newlib.string/memcpy-1.c b/newlib/testsuite/newlib.string/memcpy-1.c
new file mode 100644
index 000000000..145db1a5c
--- /dev/null
+++ b/newlib/testsuite/newlib.string/memcpy-1.c
@@ -0,0 +1,160 @@
+/*
+ * 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);
+}