From: "H.J. Lu" <hjl.tools@gmail.com>
To: libc-alpha@sourceware.org
Subject: [PATCH] Update string/test-memmove.c to cover 16KB copy
Date: Thu, 19 Aug 2021 12:10:21 -0700 [thread overview]
Message-ID: <20210819191021.3766894-1-hjl.tools@gmail.com> (raw)
---
string/test-memmove.c | 49 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/string/test-memmove.c b/string/test-memmove.c
index b271248b1d..812f6bde9e 100644
--- a/string/test-memmove.c
+++ b/string/test-memmove.c
@@ -312,6 +312,52 @@ do_test2 (size_t offset)
munmap ((void *) large_buf, size);
}
+static void
+do_test3 (void)
+{
+ /* Copy 16KB data. */
+ size_t bytes_move = 16384;
+ size_t size = 16384 * 3;
+ uint32_t *buf;
+
+ buf = mmap (NULL, size, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANON, -1, 0);
+
+ if (buf == MAP_FAILED)
+ error (EXIT_UNSUPPORTED, errno, "mmap failed");
+
+ size_t arr_size = bytes_move / sizeof (uint32_t);
+ size_t i;
+
+ FOR_EACH_IMPL (impl, 0)
+ {
+ for (i = 0; i < arr_size; i++)
+ buf[i] = (uint32_t) i;
+
+ uint32_t *dst = &buf[arr_size + 3];
+
+#ifdef TEST_BCOPY
+ CALL (impl, (char *) buf, (char *) dst, bytes_move);
+#else
+ CALL (impl, (char *) dst, (char *) buf, bytes_move);
+#endif
+
+ for (i = 0; i < arr_size; i++)
+ {
+ if (dst[i] != (uint32_t) i)
+ {
+ error (0, 0,
+ "Wrong result in function %s dst \"%p\" src \"%p\" offset \"%zd\"",
+ impl->name, dst, buf, i);
+ ret = 1;
+ break;
+ }
+ }
+ }
+
+ munmap ((void *) buf, size);
+}
+
int
test_main (void)
{
@@ -356,6 +402,9 @@ test_main (void)
do_test2 (0x200000);
do_test2 (0x4000000 - 1);
do_test2 (0x4000000);
+
+ do_test3 ();
+
return ret;
}
--
2.31.1
next reply other threads:[~2021-08-19 19:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-19 19:10 H.J. Lu [this message]
2021-08-20 3:09 ` Noah Goldstein
2021-08-20 14:08 ` H.J. Lu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210819191021.3766894-1-hjl.tools@gmail.com \
--to=hjl.tools@gmail.com \
--cc=libc-alpha@sourceware.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).