From: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date: Wed, 6 Apr 2022 07:15:39 +0000 (+0530)
Subject: test-memcpy: Actually reverse source and destination
X-Git-Tag: glibc-2.36~403
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=dfc7bf8a24f63532da167cc7131227c1c4027ffb;p=thirdparty%2Fglibc.git

test-memcpy: Actually reverse source and destination

Looks like an oversight in memcpy tests resulted in s2 and s1 not being
swapped for the second iteration of the memcpy test.  Fix it.  Also fix
a formatting nit.

Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
---

diff --git a/string/test-memcpy-support.h b/string/test-memcpy-support.h
index f1763da895d..699c00ce4cb 100644
--- a/string/test-memcpy-support.h
+++ b/string/test-memcpy-support.h
@@ -84,7 +84,7 @@ do_one_test (impl_t *impl, char *dst, const char *src, size_t len)
 static void
 do_test (size_t align1, size_t align2, size_t len)
 {
-  size_t i, j, repeats;
+  size_t i, j;
   char *s1, *s2;
 
   align1 &= 4095;
@@ -97,13 +97,16 @@ do_test (size_t align1, size_t align2, size_t len)
 
   s1 = (char *)(buf1 + align1);
   s2 = (char *)(buf2 + align2);
-  for (repeats = 0; repeats < 2; ++repeats)
+  for (size_t repeats = 0; repeats < 2; ++repeats)
     {
       for (i = 0, j = 1; i < len; i++, j += 23)
         s1[i] = j;
 
       FOR_EACH_IMPL (impl, 0)
       do_one_test (impl, s2, s1, len);
+
+      s1 = (char *) (buf2 + align1);
+      s2 = (char *) (buf1 + align2);
     }
 }
 
@@ -138,30 +141,29 @@ do_test1 (size_t align1, size_t align2, size_t size)
   unaligned_uint32_t *dest = large_buf + align1;
   unaligned_uint32_t *src = large_buf + region_size + 2 * page_size + align2;
   size_t i;
-  size_t repeats;
-  for (repeats = 0; repeats < 2; repeats++)
+  for (size_t repeats = 0; repeats < 2; repeats++)
     {
       for (i = 0; i < array_size; i++)
         src[i] = (uint32_t)i;
       FOR_EACH_IMPL (impl, 0)
-      {
-        memset (dest, -1, size);
-        CALL (impl, (char *)dest, (char *)src, size);
-        if (memcmp (src, dest, size))
-          {
-            for (i = 0; i < array_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;
-                  munmap ((void *)large_buf, mmap_size);
-                  return;
-                }
-          }
-      }
+	{
+	  memset (dest, -1, size);
+	  CALL (impl, (char *)dest, (char *)src, size);
+	  if (memcmp (src, dest, size))
+	    {
+	      for (i = 0; i < array_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;
+		    munmap ((void *)large_buf, mmap_size);
+		    return;
+		  }
+	    }
+	}
       dest = large_buf + region_size + 2 * page_size + align1;
       src = large_buf + align2;
     }