Add a test case for [BZ #23196]

	[BZ #23196]
	* string/test-memcpy.c (do_test1): New function.
	(test_main): Call it.

(cherry picked from commit ed983107bbc62245b06b99f02e69acf36a0baa3e)

diff --git a/ChangeLog b/ChangeLog
index e956dd3d6678a57a79f76f75acc7830329c1e28c..41b4dae2318a8749b866fef43aeed3672ec1ddb1 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-05-23  H.J. Lu  <hongjiu.lu@intel.com>
+
+       [BZ #23196]
+       * string/test-memcpy.c (do_test1): New function.
+       (test_main): Call it.
+
 2018-05-23  Andreas Schwab  <schwab@suse.de>
 
        [BZ #23196]

diff --git a/string/test-memcpy.c b/string/test-memcpy.c
index 49f0a760471a9b0ce688fe00a9e3df7406b9635d..dfc94b2e92bdd9987d53258ecd1a5b7f7e8d0f71 100644 (file)
--- a/string/test-memcpy.c
+++ b/string/test-memcpy.c
@@ -212,6 +212,50 @@ do_random_tests (void)
     }
 }
 
+static void
+do_test1 (void)
+{
+  size_t size = 0x100000;
+  void *large_buf;
+
+  large_buf = mmap (NULL, size * 2 + page_size, PROT_READ | PROT_WRITE,
+                   MAP_PRIVATE | MAP_ANON, -1, 0);
+  if (large_buf == MAP_FAILED)
+    {
+      puts ("Failed to allocat large_buf, skipping do_test1");
+      return;
+    }
+
+  if (mprotect (large_buf + size, page_size, PROT_NONE))
+    error (EXIT_FAILURE, errno, "mprotect failed");
+
+  size_t arrary_size = size / sizeof (uint32_t);
+  uint32_t *dest = large_buf;
+  uint32_t *src = large_buf + size + page_size;
+  size_t i;
+
+  for (i = 0; i < arrary_size; i++)
+    src[i] = (uint32_t) i;
+
+  FOR_EACH_IMPL (impl, 0)
+    {
+      memset (dest, -1, size);
+      CALL (impl, (char *) dest, (char *) src, size);
+      for (i = 0; i < arrary_size; i++)
+       if (dest[i] != src[i])
+         {
+           error (0, 0,
+                  "Wrong result in function %s dst \"%p\" src \"%p\" offset \"%zd\"",
+                  impl->name, dest, src, i);
+           ret = 1;
+           break;
+         }
+    }
+
+  munmap ((void *) dest, size);
+  munmap ((void *) src, size);
+}
+
 int
 test_main (void)
 {
@@ -253,6 +297,9 @@ test_main (void)
   do_test (0, 0, getpagesize ());
 
   do_random_tests ();
+
+  do_test1 ();
+
   return ret;
 }