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string/tst-strcoll-overflow: Do not accept timeout as test result

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The test completes within 300 seconds if enough memory is available.
This commit is contained in:
Florian Weimer 2017-01-25 16:27:03 +01:00
parent af1a265da0
commit 5653ab12b4
3 changed files with 32 additions and 24 deletions
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14
ChangeLog
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@ -1,3 +1,17 @@
2017-01-25 Florian Weimer <fweimer@redhat.com>
* string/Makefile (xtests): Add comment.
(LOCALES): Add en_GB.UTF-8.
(tst-strcoll-overflow.out): Depend on generated locales.
* string/tst-strcoll-overflow.c: Convert to support/test-driver.c.
(SIZE, TIMEOUT): Update comments.
(do_test): Define as static. Fail test if setlocale fails.
Return EXIT_UNSUPPORTED if insufficient memory. Enhance output
messages.
(EXPECTED_SIGNAL, EXPECTED_STATUS, TEST_FUNCTION): Remove.
TIMEOUT at 300 seconds should be enough to run this test
successfully.
2017-01-24 Jakub Jelinek <jakub@redhat.com>
* soft-fp/op-common.h (_FP_MUL, _FP_FMA, _FP_DIV): Add

4
string/Makefile
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@ -59,6 +59,7 @@ tests := tester inl-tester noinl-tester testcopy test-ffs \
tst-strtok_r bug-strcoll2 tst-cmp tst-xbzero-opt \
test-endian-types
# This test allocates a lot of memory and can run for a long time.
xtests = tst-strcoll-overflow
ifeq ($(run-built-tests),yes)
@ -94,7 +95,7 @@ $(objpfx)tst-svc-cmp.out: tst-svc.expect $(objpfx)tst-svc.out
LOCALES := de_DE.UTF-8 en_US.ISO-8859-1 en_US.UTF-8 \
tr_TR.ISO-8859-9 tr_TR.UTF-8 cs_CZ.UTF-8 \
da_DK.ISO-8859-1
da_DK.ISO-8859-1 en_GB.UTF-8
include ../gen-locales.mk
$(objpfx)test-strcasecmp.out: $(gen-locales)
@ -103,5 +104,6 @@ $(objpfx)tst-strxfrm.out: $(gen-locales)
$(objpfx)tst-strxfrm2.out: $(gen-locales)
# bug-strcoll2 needs cs_CZ.UTF-8 and da_DK.ISO-8859-1.
$(objpfx)bug-strcoll2.out: $(gen-locales)
$(objpfx)tst-strcoll-overflow.out: $(gen-locales)
endif

38
string/tst-strcoll-overflow.c
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@ -21,42 +21,34 @@
#include <stdlib.h>
#include <string.h>
/* Verify that strcoll does not crash for large strings for which it cannot
cache weight lookup results. The size is large enough to cause integer
overflows on 32-bit as well as buffer overflows on 64-bit. The test should
work reasonably reliably when overcommit is disabled, but it obviously
depends on how much memory the system has. There's a limitation to this
test in that it does not run to completion. Actually collating such a
large string can take days and we can't have xcheck running that long. For
that reason, we run the test for about 5 minutes and then assume that
everything is fine if there are no crashes. */
#include <support/check.h>
#include <support/test-driver.h>
/* Verify that strcoll does not crash for large strings for which it
cannot cache weight lookup results. The size is large enough to
cause integer overflows on 32-bit as well as buffer overflows on
64-bit. */
#define SIZE 0x40000000ul
int
static int
do_test (void)
{
if (setlocale (LC_COLLATE, "en_GB.UTF-8") == NULL)
{
puts ("setlocale failed, cannot test for overflow");
return 0;
}
TEST_VERIFY_EXIT (setlocale (LC_COLLATE, "en_GB.UTF-8") != NULL);
char *p = malloc (SIZE);
if (p == NULL)
{
puts ("could not allocate memory");
return 1;
puts ("info: could not allocate memory, cannot run test");
return EXIT_UNSUPPORTED;
}
memset (p, 'x', SIZE - 1);
p[SIZE - 1] = 0;
printf ("%d\n", strcoll (p, p));
printf ("info: strcoll result: %d\n", strcoll (p, p));
return 0;
}
/* This test can rung for a long time, but it should complete within
this time on reasonably current hardware. */
#define TIMEOUT 300
#define EXPECTED_SIGNAL SIGALRM
#define EXPECTED_STATUS 0
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
#include <support/test-driver.c>