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arm: XFAIL string/tst-memmove-overflow due to bug 25620

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Also reduce the amount of output in case of a large-scale mismatch in
the copied data.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Florian Weimer 2020-05-13 16:45:29 +02:00
parent ad78d70275
commit eca1b23332
2 changed files with 26 additions and 2 deletions
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23
string/tst-memmove-overflow.c
View File

@ -57,6 +57,25 @@ expected_value (size_t index)
return randomized >> 25; /* Result is in the range [0, 127]. */
}
/* Used to count mismatches up to a limit, to avoid creating a huge
test output file. */
static unsigned int mismatch_count;
/* Check ACTUAL == EXPECTED. Use INDEX for error reporting. Exit the
process after too many errors. */
static inline void
check_one_index (size_t index, unsigned char actual, unsigned char expected)
{
if (actual != expected)
{
printf ("error: mismatch at index %zu: expected 0x%02x, got 0x%02x\n",
index, actual, expected);
++mismatch_count;
if (mismatch_count > 200)
FAIL_EXIT1 ("bailing out due to too many errors");
}
}
static int
test_main (void)
{
@ -138,13 +157,13 @@ test_main (void)
start + allocation_size - sizeof (expected_end) - 1,
sizeof (expected_end));
for (size_t i = 0; i < unshared_size - 1; ++i)
TEST_COMPARE (start[i], expected_value (i + 1));
check_one_index (i, start[i], expected_value (i + 1));
/* The gap between the checked start and end area of the mapping
has shared mappings at unspecified boundaries, so do not
check the expected values in the middle. */
for (size_t i = allocation_size - unshared_size; i < allocation_size - 1;
++i)
TEST_COMPARE (start[i], expected_value (i + 1));
check_one_index (i, start[i], expected_value (i + 1));
support_blob_repeat_free (&repeat);
}

5
sysdeps/arm/Makefile
View File

@ -68,3 +68,8 @@ ifeq ($(subdir),nptl)
libpthread-sysdep_routines += pt-arm-unwind-resume
libpthread-shared-only-routines += pt-arm-unwind-resume
endif
ifeq ($(subdir),string)
# This test fails on arm due to bug 25620 and related issues.
test-xfail-tst-memmove-overflow = yes
endif