1 | /* Test and measure strcpy functions. |
2 | Copyright (C) 1999-2024 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 | #ifdef WIDE |
20 | # include <wchar.h> |
21 | # define CHAR wchar_t |
22 | # define UCHAR wchar_t |
23 | # define sfmt "ls" |
24 | # define BIG_CHAR WCHAR_MAX |
25 | # define SMALL_CHAR 1273 |
26 | # define STRCMP wcscmp |
27 | # define MEMCMP wmemcmp |
28 | # define MEMSET wmemset |
29 | #else |
30 | # define CHAR char |
31 | # define UCHAR unsigned char |
32 | # define sfmt "s" |
33 | # define BIG_CHAR CHAR_MAX |
34 | # define SMALL_CHAR 127 |
35 | # define STRCMP strcmp |
36 | # define MEMCMP memcmp |
37 | # define MEMSET memset |
38 | #endif |
39 | |
40 | #ifndef STRCPY_RESULT |
41 | # define STRCPY_RESULT(dst, len) dst |
42 | # define TEST_MAIN |
43 | # ifndef WIDE |
44 | # define TEST_NAME "strcpy" |
45 | # else |
46 | # define TEST_NAME "wcscpy" |
47 | # endif |
48 | # include "test-string.h" |
49 | # ifndef WIDE |
50 | # define STRCPY strcpy |
51 | # else |
52 | # define STRCPY wcscpy |
53 | # endif |
54 | |
55 | IMPL (STRCPY, 1) |
56 | |
57 | /* Also check the generic implementation. */ |
58 | #undef STRCPY |
59 | #undef libc_hidden_builtin_def |
60 | #define libc_hidden_builtin_def(a) |
61 | #undef libc_hidden_def |
62 | #define libc_hidden_def(a) |
63 | #undef weak_alias |
64 | #define weak_alias(a,b) |
65 | #undef attribute_hidden |
66 | #define attribute_hidden |
67 | # ifndef WIDE |
68 | # define STPCPY __stpcpy_default |
69 | # include "string/stpcpy.c" |
70 | # define STRCPY __strcpy_default |
71 | # define __stpcpy __stpcpy_default |
72 | # include "string/strcpy.c" |
73 | IMPL (__strcpy_default, 1) |
74 | # else |
75 | # define __wcslen wcslen |
76 | # define __wmemcpy wmemcpy |
77 | # define WCSCPY __wcscpy_default |
78 | # include "wcsmbs/wcscpy.c" |
79 | IMPL (__wcscpy_default, 1) |
80 | # endif |
81 | #endif |
82 | |
83 | typedef CHAR *(*proto_t) (CHAR *, const CHAR *); |
84 | |
85 | static void |
86 | do_one_test (impl_t *impl, CHAR *dst, const CHAR *src, |
87 | size_t len __attribute__((unused))) |
88 | { |
89 | if (CALL (impl, dst, src) != STRCPY_RESULT (dst, len)) |
90 | { |
91 | error (status: 0, errnum: 0, format: "Wrong result in function %s %p %p" , impl->name, |
92 | CALL (impl, dst, src), STRCPY_RESULT (dst, len)); |
93 | ret = 1; |
94 | return; |
95 | } |
96 | |
97 | if (STRCMP (dst, src) != 0) |
98 | { |
99 | error (status: 0, errnum: 0, |
100 | format: "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"" , |
101 | impl->name, dst, src); |
102 | ret = 1; |
103 | return; |
104 | } |
105 | } |
106 | |
107 | static void |
108 | do_test (size_t align1, size_t align2, size_t len, int max_char) |
109 | { |
110 | size_t i; |
111 | CHAR *s1, *s2; |
112 | /* For wcscpy: align1 and align2 here mean alignment not in bytes, |
113 | but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t)) |
114 | len for wcschr here isn't in bytes but it's number of wchar_t symbols. */ |
115 | align1 &= 7; |
116 | if ((align1 + len) * sizeof (CHAR) >= page_size) |
117 | return; |
118 | |
119 | align2 &= 7; |
120 | if ((align2 + len) * sizeof (CHAR) >= page_size) |
121 | return; |
122 | |
123 | s1 = (CHAR *) (buf1) + align1; |
124 | s2 = (CHAR *) (buf2) + align2; |
125 | |
126 | for (i = 0; i < len; i++) |
127 | s1[i] = 32 + 23 * i % (max_char - 32); |
128 | s1[len] = 0; |
129 | |
130 | FOR_EACH_IMPL (impl, 0) |
131 | do_one_test (impl, dst: s2, src: s1, len); |
132 | } |
133 | |
134 | static void |
135 | do_random_tests (void) |
136 | { |
137 | size_t i, j, n, align1, align2, len; |
138 | UCHAR *p1 = (UCHAR *) (buf1 + page_size) - 512; |
139 | UCHAR *p2 = (UCHAR *) (buf2 + page_size) - 512; |
140 | UCHAR *res; |
141 | |
142 | for (n = 0; n < ITERATIONS; n++) |
143 | { |
144 | /* For wcsrchr: align1 and align2 here mean align not in bytes, |
145 | but in wchar_ts, in bytes it will equal to align * (sizeof |
146 | (wchar_t)). For strrchr we need to check all alignments from |
147 | 0 to 63 since some assembly implementations have separate |
148 | prolog for alignments more 48. */ |
149 | |
150 | align1 = random () & (63 / sizeof (CHAR)); |
151 | if (random () & 1) |
152 | align2 = random () & (63 / sizeof (CHAR)); |
153 | else |
154 | align2 = align1 + (random () & 24); |
155 | len = random () & 511; |
156 | j = align1; |
157 | if (align2 > j) |
158 | j = align2; |
159 | if (len + j >= 511) |
160 | len = 510 - j - (random () & 7); |
161 | j = len + align1 + 64; |
162 | if (j > 512) |
163 | j = 512; |
164 | for (i = 0; i < j; i++) |
165 | { |
166 | if (i == len + align1) |
167 | p1[i] = 0; |
168 | else |
169 | { |
170 | p1[i] = random () & BIG_CHAR; |
171 | if (i >= align1 && i < len + align1 && !p1[i]) |
172 | p1[i] = (random () & SMALL_CHAR) + 3; |
173 | } |
174 | } |
175 | |
176 | FOR_EACH_IMPL (impl, 1) |
177 | { |
178 | MEMSET (p2 - 64, '\1', 512 + 64); |
179 | res = (UCHAR *) CALL (impl, (CHAR *) (p2 + align2), (CHAR *) (p1 + align1)); |
180 | if (res != STRCPY_RESULT (p2 + align2, len)) |
181 | { |
182 | error (status: 0, errnum: 0, format: "Iteration %zd - wrong result in function %s (%zd, %zd, %zd) %p != %p" , |
183 | n, impl->name, align1, align2, len, res, |
184 | STRCPY_RESULT (p2 + align2, len)); |
185 | ret = 1; |
186 | } |
187 | for (j = 0; j < align2 + 64; ++j) |
188 | { |
189 | if (p2[j - 64] != '\1') |
190 | { |
191 | error (status: 0, errnum: 0, format: "Iteration %zd - garbage before, %s (%zd, %zd, %zd)" , |
192 | n, impl->name, align1, align2, len); |
193 | ret = 1; |
194 | break; |
195 | } |
196 | } |
197 | for (j = align2 + len + 1; j < 512; ++j) |
198 | { |
199 | if (p2[j] != '\1') |
200 | { |
201 | error (status: 0, errnum: 0, format: "Iteration %zd - garbage after, %s (%zd, %zd, %zd)" , |
202 | n, impl->name, align1, align2, len); |
203 | ret = 1; |
204 | break; |
205 | } |
206 | } |
207 | if (MEMCMP (p1 + align1, p2 + align2, len + 1)) |
208 | { |
209 | error (status: 0, errnum: 0, format: "Iteration %zd - different strings, %s (%zd, %zd, %zd)" , |
210 | n, impl->name, align1, align2, len); |
211 | ret = 1; |
212 | } |
213 | } |
214 | } |
215 | } |
216 | |
217 | int |
218 | test_main (void) |
219 | { |
220 | size_t i; |
221 | |
222 | test_init (); |
223 | |
224 | printf (format: "%23s" , "" ); |
225 | FOR_EACH_IMPL (impl, 0) |
226 | printf (format: "\t%s" , impl->name); |
227 | putchar (c: '\n'); |
228 | |
229 | for (i = 0; i < 16; ++i) |
230 | { |
231 | do_test (align1: 0, align2: 0, len: i, SMALL_CHAR); |
232 | do_test (align1: 0, align2: 0, len: i, BIG_CHAR); |
233 | do_test (align1: 0, align2: i, len: i, SMALL_CHAR); |
234 | do_test (align1: i, align2: 0, len: i, BIG_CHAR); |
235 | } |
236 | |
237 | for (i = 1; i < 8; ++i) |
238 | { |
239 | do_test (align1: 0, align2: 0, len: 8 << i, SMALL_CHAR); |
240 | do_test (align1: 8 - i, align2: 2 * i, len: 8 << i, SMALL_CHAR); |
241 | } |
242 | |
243 | for (i = 1; i < 8; ++i) |
244 | { |
245 | do_test (align1: i, align2: 2 * i, len: 8 << i, SMALL_CHAR); |
246 | do_test (align1: 2 * i, align2: i, len: 8 << i, BIG_CHAR); |
247 | do_test (align1: i, align2: i, len: 8 << i, SMALL_CHAR); |
248 | do_test (align1: i, align2: i, len: 8 << i, BIG_CHAR); |
249 | } |
250 | |
251 | do_random_tests (); |
252 | return ret; |
253 | } |
254 | |
255 | #include <support/test-driver.c> |
256 | |