1 | /* Test case for strncmp inside a transactionally executing RTM region. |
2 | Copyright (C) 2021-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <stdint.h> |
20 | #include <tst-string-rtm.h> |
21 | |
22 | #ifdef WIDE |
23 | # define CHAR wchar_t |
24 | # define MEMSET wmemset |
25 | # define STRNCMP wcsncmp |
26 | # define TEST_NAME "wcsncmp" |
27 | #else /* !WIDE */ |
28 | # define CHAR char |
29 | # define MEMSET memset |
30 | # ifndef STRNCMP |
31 | # define STRNCMP strncmp |
32 | # define TEST_NAME "strncmp" |
33 | # endif |
34 | #endif /* !WIDE */ |
35 | |
36 | |
37 | |
38 | #define LOOP 3000 |
39 | #define STRING_SIZE 1024 |
40 | CHAR string1[STRING_SIZE]; |
41 | CHAR string2[STRING_SIZE]; |
42 | |
43 | __attribute__ ((noinline, noclone)) |
44 | static int |
45 | prepare (void) |
46 | { |
47 | MEMSET (string1, 'a', STRING_SIZE - 1); |
48 | MEMSET (string2, 'a', STRING_SIZE - 1); |
49 | if (STRNCMP (s1: string1, s2: string2, STRING_SIZE) == 0) |
50 | return EXIT_SUCCESS; |
51 | else |
52 | return EXIT_FAILURE; |
53 | } |
54 | |
55 | __attribute__ ((noinline, noclone)) |
56 | static int |
57 | function (void) |
58 | { |
59 | if (STRNCMP (s1: string1, s2: string2, STRING_SIZE) == 0) |
60 | return 0; |
61 | else |
62 | return 1; |
63 | } |
64 | |
65 | __attribute__ ((noinline, noclone)) |
66 | static int |
67 | function_overflow (void) |
68 | { |
69 | if (STRNCMP (s1: string1, s2: string2, SIZE_MAX) == 0) |
70 | return 0; |
71 | else |
72 | return 1; |
73 | } |
74 | |
75 | __attribute__ ((noinline, noclone)) |
76 | static int |
77 | function_overflow2 (void) |
78 | { |
79 | if (STRNCMP (s1: string1, s2: string2, SIZE_MAX >> 4) == 0) |
80 | return 0; |
81 | else |
82 | return 1; |
83 | } |
84 | |
85 | static int |
86 | do_test (void) |
87 | { |
88 | int status = do_test_1 (TEST_NAME, LOOP, prepare, function); |
89 | if (status != EXIT_SUCCESS) |
90 | return status; |
91 | status = do_test_1 (TEST_NAME, LOOP, prepare, function: function_overflow); |
92 | if (status != EXIT_SUCCESS) |
93 | return status; |
94 | status = do_test_1 (TEST_NAME, LOOP, prepare, function: function_overflow2); |
95 | if (status != EXIT_SUCCESS) |
96 | return status; |
97 | return status; |
98 | } |
99 | |