1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31 #include "it_test_vm.h"
32
33 #define MAP_TEST_FILE "/dev/shm/test"
34
Testcase(void)35 static int Testcase(void)
36 {
37 char *p1 = NULL;
38 char *p2 = NULL;
39 char *p3 = NULL;
40 int fd, pageSize;
41 int ret;
42
43 pageSize = getpagesize();
44 fd = open(MAP_TEST_FILE, O_RDONLY);
45 ICUNIT_ASSERT_NOT_EQUAL(fd, -1, fd);
46
47 p1 = (char *)mmap(NULL, pageSize, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
48 ICUNIT_ASSERT_NOT_EQUAL(p1, MAP_FAILED, p1);
49 (void)memset_s(p1, pageSize, 0, pageSize);
50
51 p2 = (char *)mmap(NULL, pageSize, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
52 ICUNIT_ASSERT_NOT_EQUAL(p2, MAP_FAILED, p2);
53 (void)memset_s(p2, pageSize, 0, pageSize);
54
55 ret = memcmp(p1, p2, pageSize);
56 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
57
58 p1[0] = 1;
59 ICUNIT_ASSERT_EQUAL(p2[0], 0, p2[0]);
60
61 p2[0] = 2;
62 ICUNIT_ASSERT_EQUAL(p1[0], 1, p1[0]);
63
64 p3 = (char *)mmap(NULL, pageSize, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
65 ICUNIT_ASSERT_NOT_EQUAL(p3, MAP_FAILED, p3);
66 ICUNIT_ASSERT_EQUAL(p3[0], 0xf, p3[0]);
67
68 ret = munmap(p1, pageSize);
69 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
70 ret = munmap(p2, pageSize);
71 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
72 ret = munmap(p3, pageSize);
73 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
74 ret = close(fd);
75 ICUNIT_ASSERT_EQUAL(ret, 0, ret);
76
77 return 0;
78 }
79
ItTestMmap003(void)80 void ItTestMmap003(void)
81 {
82 TEST_ADD_CASE("IT_MEM_MMAP_003", Testcase, TEST_LOS, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
83 }
84