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authorNoah Goldstein <goldstein.w.n@gmail.com>2022-02-08 15:24:59 -0600
committerNoah Goldstein <goldstein.w.n@gmail.com>2022-02-11 04:06:27 -0600
commit02561bb48a26429a238cbd6afbe5998dabcc4546 (patch)
treec51116299da248e7a7f9dc5b4303bebb689dc77a /string/test-strncmp.c
parentfb55d9b945ca7c88e01298657908fb3c54d0302c (diff)
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String: Ensure 'MIN_PAGE_SIZE' is multiple of 'getpagesize'
When 'TEST_LEN' was defined as (4096 * 3) the allocation size Would not be a multiple of system page size if system page size > 4096.
Diffstat (limited to 'string/test-strncmp.c')
-rw-r--r--string/test-strncmp.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/string/test-strncmp.c b/string/test-strncmp.c
index 1a3cee1792..831cb77893 100644
--- a/string/test-strncmp.c
+++ b/string/test-strncmp.c
@@ -16,7 +16,7 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#define TEST_LEN (4096 * 3)
+#define TEST_LEN (getpagesize () * 3)
#define MIN_PAGE_SIZE (TEST_LEN + 2 * getpagesize ())
#define TEST_MAIN
@@ -430,7 +430,7 @@ check_overflow (void)
const size_t of_masks[]
= { ULONG_MAX, LONG_MIN, ULONG_MAX - (ULONG_MAX >> 2),
((size_t)LONG_MAX) >> 1 };
-
+ const size_t test_len = MIN(TEST_LEN, 3 * 4096);
for (of_idx = 0; of_idx < sizeof (of_masks) / sizeof (of_masks[0]); ++of_idx)
{
of_mask = of_masks[of_idx];
@@ -484,7 +484,7 @@ check_overflow (void)
of_mask - j * 2, 0, 127, -1);
}
- for (i = 1; i < TEST_LEN; i += i)
+ for (i = 1; i < test_len; i += i)
{
do_test_n (j, 0, i - 1, of_mask, 0, 127, 0);
do_test_n (j, 0, i - 1, of_mask, 0, 127, 1);
@@ -540,7 +540,7 @@ int
test_main (void)
{
size_t i, j;
-
+ const size_t test_len = MIN(TEST_LEN, 3 * 4096);
test_init ();
check1 ();
@@ -608,7 +608,7 @@ test_main (void)
for (j = 0; j < 160; ++j)
{
- for (i = 0; i < TEST_LEN;)
+ for (i = 0; i < test_len;)
{
do_test_n (getpagesize () - j - 1, 0, i, i + 1, 0, 127, 0);
do_test_n (getpagesize () - j - 1, 0, i, i + 1, 0, 127, 1);
@@ -677,17 +677,17 @@ test_main (void)
{
i += 7;
}
- else if (i + 161 < TEST_LEN)
+ else if (i + 161 < test_len)
{
i += 31;
i *= 17;
i /= 16;
- if (i + 161 > TEST_LEN)
+ if (i + 161 > test_len)
{
- i = TEST_LEN - 160;
+ i = test_len - 160;
}
}
- else if (i + 32 < TEST_LEN)
+ else if (i + 32 < test_len)
{
i += 7;
}