Range encodes an integer interval [a,b] as { begin = a, end = b + 1 },
where a \in [0,2^64-1] and b \in [1,2^64]. Thus, zero end is to be
interpreted as 2^64.
The implementation of -dfilter (commit 3514552
) uses Range
differently: it encodes [a,b] as { begin = a, end = b }. The code
works, but it contradicts the specification of Range in range.h.
Switch to the specified representation. Since it can't represent
[0,UINT64_MAX], we have to reject that now. Add a test for it.
While we're rejecting anyway: observe that we reject -dfilter LOB..UPB
where LOB > UPB when UPB is zero, but happily create an empty Range
when it isn't. Reject it then, too, and add a test for it.
While there, add a positive test for the problematic upper bound
UINT64_MAX.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
109 lines
3.6 KiB
C
109 lines
3.6 KiB
C
/*
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* logging unit-tests
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*
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* Copyright (C) 2016 Linaro Ltd.
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*
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* Author: Alex Bennée <alex.bennee@linaro.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qapi/error.h"
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#include "qemu/log.h"
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static void test_parse_range(void)
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{
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Error *err = NULL;
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qemu_set_dfilter_ranges("0x1000+0x100", &error_abort);
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g_assert_false(qemu_log_in_addr_range(0xfff));
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g_assert(qemu_log_in_addr_range(0x1000));
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g_assert(qemu_log_in_addr_range(0x1001));
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g_assert(qemu_log_in_addr_range(0x10ff));
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g_assert_false(qemu_log_in_addr_range(0x1100));
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qemu_set_dfilter_ranges("0x1000-0x100", &error_abort);
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g_assert_false(qemu_log_in_addr_range(0x1001));
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g_assert(qemu_log_in_addr_range(0x1000));
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g_assert(qemu_log_in_addr_range(0x0f01));
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g_assert_false(qemu_log_in_addr_range(0x0f00));
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qemu_set_dfilter_ranges("0x1000..0x1100", &error_abort);
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g_assert_false(qemu_log_in_addr_range(0xfff));
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g_assert(qemu_log_in_addr_range(0x1000));
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g_assert(qemu_log_in_addr_range(0x1100));
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g_assert_false(qemu_log_in_addr_range(0x1101));
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qemu_set_dfilter_ranges("0x1000..0x1000", &error_abort);
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g_assert_false(qemu_log_in_addr_range(0xfff));
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g_assert(qemu_log_in_addr_range(0x1000));
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g_assert_false(qemu_log_in_addr_range(0x1001));
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qemu_set_dfilter_ranges("0x1000+0x100,0x2100-0x100,0x3000..0x3100",
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&error_abort);
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g_assert(qemu_log_in_addr_range(0x1050));
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g_assert(qemu_log_in_addr_range(0x2050));
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g_assert(qemu_log_in_addr_range(0x3050));
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qemu_set_dfilter_ranges("0xffffffffffffffff-1", &error_abort);
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g_assert(qemu_log_in_addr_range(UINT64_MAX));
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g_assert_false(qemu_log_in_addr_range(UINT64_MAX - 1));
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qemu_set_dfilter_ranges("0..0xffffffffffffffff", &err);
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error_free_or_abort(&err);
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qemu_set_dfilter_ranges("2..1", &err);
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error_free_or_abort(&err);
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qemu_set_dfilter_ranges("0x1000+onehundred", &err);
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error_free_or_abort(&err);
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qemu_set_dfilter_ranges("0x1000+0", &err);
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error_free_or_abort(&err);
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}
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static void test_parse_path(void)
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{
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Error *err = NULL;
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qemu_set_log_filename("/tmp/qemu.log", &error_abort);
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qemu_set_log_filename("/tmp/qemu-%d.log", &error_abort);
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qemu_set_log_filename("/tmp/qemu.log.%d", &error_abort);
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qemu_set_log_filename("/tmp/qemu-%d%d.log", &err);
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error_free_or_abort(&err);
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}
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int main(int argc, char **argv)
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{
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g_test_init(&argc, &argv, NULL);
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g_test_add_func("/logging/parse_range", test_parse_range);
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g_test_add_func("/logging/parse_path", test_parse_path);
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return g_test_run();
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}
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