1 | /* Test and measure strdup functions. |
2 | Copyright (C) 2023-2024 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 <support/check.h> |
20 | |
21 | #ifdef WIDE |
22 | # include <wchar.h> |
23 | # define CHAR wchar_t |
24 | # define sfmt "ls" |
25 | # define BIG_CHAR WCHAR_MAX |
26 | # define SMALL_CHAR 1273 |
27 | # define STRCMP wcscmp |
28 | # define MEMCMP wmemcmp |
29 | # define MEMSET wmemset |
30 | # define TCS TEST_COMPARE_STRING_WIDE |
31 | #else |
32 | # define CHAR char |
33 | # define sfmt "s" |
34 | # define BIG_CHAR CHAR_MAX |
35 | # define SMALL_CHAR 127 |
36 | # define STRCMP strcmp |
37 | # define MEMCMP memcmp |
38 | # define MEMSET memset |
39 | # define TCS TEST_COMPARE_STRING |
40 | #endif |
41 | |
42 | #ifndef STRDUP_RESULT |
43 | # define STRDUP_RESULT(dst, len) dst |
44 | # define TEST_MAIN |
45 | # ifndef WIDE |
46 | # define TEST_NAME "strdup" |
47 | # else |
48 | # define TEST_NAME "wcsdup" |
49 | # endif |
50 | # include "test-string.h" |
51 | # ifndef WIDE |
52 | # define STRDUP strdup |
53 | # else |
54 | # define STRDUP wcsdup |
55 | # endif |
56 | #endif |
57 | |
58 | typedef CHAR *(*proto_t) (const CHAR *); |
59 | |
60 | static void |
61 | do_zero_len_test (void) |
62 | { |
63 | CHAR src[1] = { '\0' }; |
64 | CHAR *dst = STRDUP (s: src); |
65 | |
66 | TCS (dst, src); |
67 | free (ptr: dst); |
68 | } |
69 | |
70 | static void |
71 | do_one_test (const CHAR *src, |
72 | size_t len __attribute__((unused))) |
73 | { |
74 | CHAR *dst = STRDUP (s: src); |
75 | |
76 | if (STRCMP (dst, src) != 0) |
77 | { |
78 | error (status: 0, errnum: 0, |
79 | format: "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"" , |
80 | TEST_NAME, dst, src); |
81 | ret = 1; |
82 | free (ptr: dst); |
83 | return; |
84 | } |
85 | free (ptr: dst); |
86 | } |
87 | |
88 | static void |
89 | do_test (size_t align1, size_t align2, size_t len, int max_char) |
90 | { |
91 | size_t i; |
92 | CHAR *s1; |
93 | /* For wcsdup: align1 and align2 here mean alignment not in bytes, |
94 | but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)) |
95 | len for wcschr here isn't in bytes but it's number of wchar_t symbols. */ |
96 | align1 &= 7; |
97 | if ((align1 + len) * sizeof (CHAR) >= page_size) |
98 | return; |
99 | |
100 | align2 &= 7; |
101 | if ((align2 + len) * sizeof (CHAR) >= page_size) |
102 | return; |
103 | |
104 | s1 = (CHAR *) (buf1) + align1; |
105 | |
106 | for (i = 0; i < len; i++) |
107 | s1[i] = 32 + 23 * i % (max_char - 32); |
108 | s1[len] = 0; |
109 | |
110 | do_one_test (src: s1, len); |
111 | } |
112 | |
113 | static void |
114 | do_random_tests (void) |
115 | { |
116 | size_t i, j, n, align1, align2, len; |
117 | CHAR *p1 = (CHAR *)(buf1 + page_size) - 512; |
118 | CHAR *res; |
119 | |
120 | for (n = 0; n < ITERATIONS; n++) |
121 | { |
122 | /* align1 and align2 are expressed as wchar_t and not in bytes for wide |
123 | char test, and thus it will be equal to align times wchar_t size. |
124 | |
125 | For non wide version we need to check all alignments from 0 to 63 |
126 | since some assembly implementations have separate prolog for alignments |
127 | more 48. */ |
128 | |
129 | align1 = random () & (63 / sizeof (CHAR)); |
130 | if (random () & 1) |
131 | align2 = random () & (63 / sizeof (CHAR)); |
132 | else |
133 | align2 = align1 + (random () & 24); |
134 | len = random () & 511; |
135 | j = align1; |
136 | if (align2 > j) |
137 | j = align2; |
138 | if (len + j >= 511) |
139 | len = 510 - j - (random () & 7); |
140 | j = len + align1 + 64; |
141 | if (j > 512) |
142 | j = 512; |
143 | for (i = 0; i < j; i++) |
144 | { |
145 | if (i == len + align1) |
146 | p1[i] = 0; |
147 | else |
148 | { |
149 | p1[i] = random () & BIG_CHAR; |
150 | if (i >= align1 && i < len + align1 && !p1[i]) |
151 | p1[i] = (random () & SMALL_CHAR) + 3; |
152 | } |
153 | } |
154 | |
155 | res = STRDUP(s: p1 + align1); |
156 | TCS (res, (p1 + align1)); |
157 | free (ptr: res); |
158 | } |
159 | } |
160 | |
161 | |
162 | int |
163 | test_main (void) |
164 | { |
165 | size_t i; |
166 | |
167 | test_init (); |
168 | |
169 | printf (format: "%23s" , "" ); |
170 | printf (format: "\t%s" , TEST_NAME); |
171 | putchar (c: '\n'); |
172 | |
173 | for (i = 0; i < 16; ++i) |
174 | { |
175 | do_test (align1: 0, align2: 0, len: i, SMALL_CHAR); |
176 | do_test (align1: 0, align2: 0, len: i, BIG_CHAR); |
177 | do_test (align1: 0, align2: i, len: i, SMALL_CHAR); |
178 | do_test (align1: i, align2: 0, len: i, BIG_CHAR); |
179 | } |
180 | |
181 | for (i = 1; i < 8; ++i) |
182 | { |
183 | do_test (align1: 0, align2: 0, len: 8 << i, SMALL_CHAR); |
184 | do_test (align1: 8 - i, align2: 2 * i, len: 8 << i, SMALL_CHAR); |
185 | } |
186 | |
187 | for (i = 1; i < 8; ++i) |
188 | { |
189 | do_test (align1: i, align2: 2 * i, len: 8 << i, SMALL_CHAR); |
190 | do_test (align1: 2 * i, align2: i, len: 8 << i, BIG_CHAR); |
191 | do_test (align1: i, align2: i, len: 8 << i, SMALL_CHAR); |
192 | do_test (align1: i, align2: i, len: 8 << i, BIG_CHAR); |
193 | } |
194 | |
195 | do_zero_len_test (); |
196 | do_random_tests (); |
197 | |
198 | return ret; |
199 | } |
200 | |
201 | #include <support/test-driver.c> |
202 | |