From: Sunil K Pandey <skpgkp2@gmail.com>
Date: Mon, 10 Oct 2022 16:28:14 +0000 (-0700)
Subject: String: Improve test coverage for memchr
X-Git-Tag: glibc-2.37~263
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=264db94040c463d9bc356101595d89335586875e;p=thirdparty%2Fglibc.git

String: Improve test coverage for memchr

This test improves memchr coverage near page boundary.

Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
---

diff --git a/string/test-memchr.c b/string/test-memchr.c
index 279a67ebe6a..1cbcd57fd43 100644
--- a/string/test-memchr.c
+++ b/string/test-memchr.c
@@ -247,8 +247,11 @@ test_main (void)
   /* BZ#21182 - wrong overflow calculation for i686 implementation
      with address near end of the page.  */
   for (i = 2; i < 16; ++i)
-    /* page_size is in fact getpagesize() * 2.  */
-    do_test (page_size / 2 - i, i, i, 1, 0x9B);
+    {
+      /* page_size is in fact getpagesize() * 2.  */
+      do_test (page_size / 2 - i, i, i, 1, 0x9B);
+      do_test (page_size / 2 - i, i - 1, i - 1, 1, 0x9B);
+    }
 
   do_random_tests ();
   do_overflow_tests ();