1 /* Measure __strcpy_chk functions.
2 Copyright (C) 2013 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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 <http://www.gnu.org/licenses/>. */
20 # define STRCPY_RESULT(dst, len) dst
22 # define TEST_NAME "strcpy_chk"
23 # include "bench-string.h"
25 /* This test case implicitly tests the availability of the __chk_fail
26 symbol, which is part of the public ABI and may be used
28 extern void __attribute__ ((noreturn
)) __chk_fail (void);
29 char *simple_strcpy_chk (char *, const char *, size_t);
30 extern char *normal_strcpy (char *, const char *, size_t)
32 extern char *__strcpy_chk (char *, const char *, size_t);
34 IMPL (simple_strcpy_chk
, 0)
35 IMPL (normal_strcpy
, 1)
36 IMPL (__strcpy_chk
, 2)
39 simple_strcpy_chk (char *dst
, const char *src
, size_t len
)
44 while ((*dst
++ = *src
++) != '\0')
56 volatile int chk_fail_ok
;
65 longjmp (chk_fail_buf
, 1);
71 typedef char *(*proto_t
) (char *, const char *, size_t);
74 do_one_test (impl_t
*impl
, char *dst
, const char *src
,
75 size_t len
, size_t dlen
)
84 if (setjmp (chk_fail_buf
) == 0)
86 res
= CALL (impl
, dst
, src
, dlen
);
87 printf ("*** Function %s (%zd; %zd) did not __chk_fail\n",
88 impl
->name
, len
, dlen
);
95 res
= CALL (impl
, dst
, src
, dlen
);
97 if (res
!= STRCPY_RESULT (dst
, len
))
99 printf ("Wrong result in function %s %p %p\n", impl
->name
,
100 res
, STRCPY_RESULT (dst
, len
));
105 if (strcmp (dst
, src
) != 0)
107 printf ("Wrong result in function %s dst \"%s\" src \"%s\"\n",
108 impl
->name
, dst
, src
);
115 hp_timing_t start
__attribute ((unused
));
116 hp_timing_t stop
__attribute ((unused
));;
117 hp_timing_t best_time
= ~ (hp_timing_t
) 0;
120 for (i
= 0; i
< 32; ++i
)
122 HP_TIMING_NOW (start
);
123 CALL (impl
, dst
, src
, dlen
);
124 HP_TIMING_NOW (stop
);
125 HP_TIMING_BEST (best_time
, start
, stop
);
128 printf ("\t%zd", (size_t) best_time
);
133 do_test (size_t align1
, size_t align2
, size_t len
, size_t dlen
, int max_char
)
139 if (align1
+ len
>= page_size
)
143 if (align2
+ len
>= page_size
)
146 s1
= (char *) buf1
+ align1
;
147 s2
= (char *) buf2
+ align2
;
149 for (i
= 0; i
< len
; i
++)
150 s1
[i
] = 32 + 23 * i
% (max_char
- 32);
153 if (HP_TIMING_AVAIL
&& dlen
> len
)
154 printf ("Length %4zd, alignment %2zd/%2zd:", len
, align1
, align2
);
156 FOR_EACH_IMPL (impl
, 0)
157 do_one_test (impl
, s2
, s1
, len
, dlen
);
159 if (HP_TIMING_AVAIL
&& dlen
> len
)
169 sa
.sa_handler
= handler
;
171 sigemptyset (&sa
.sa_mask
);
173 sigaction (SIGABRT
, &sa
, NULL
);
175 /* Avoid all the buffer overflow messages on stderr. */
176 int fd
= open (_PATH_DEVNULL
, O_WRONLY
);
178 close (STDERR_FILENO
);
181 dup2 (fd
, STDERR_FILENO
);
184 setenv ("LIBC_FATAL_STDERR_", "1", 1);
189 FOR_EACH_IMPL (impl
, 0)
190 printf ("\t%s", impl
->name
);
193 for (i
= 0; i
< 16; ++i
)
195 do_test (0, 0, i
, i
+ 1, 127);
196 do_test (0, 0, i
, i
+ 1, 255);
197 do_test (0, i
, i
, i
+ 1, 127);
198 do_test (i
, 0, i
, i
+ 1, 255);
201 for (i
= 1; i
< 8; ++i
)
203 do_test (0, 0, 8 << i
, (8 << i
) + 1, 127);
204 do_test (8 - i
, 2 * i
, (8 << i
), (8 << i
) + 1, 127);
207 for (i
= 1; i
< 8; ++i
)
209 do_test (i
, 2 * i
, (8 << i
), (8 << i
) + 1, 127);
210 do_test (2 * i
, i
, (8 << i
), (8 << i
) + 1, 255);
211 do_test (i
, i
, (8 << i
), (8 << i
) + 1, 127);
212 do_test (i
, i
, (8 << i
), (8 << i
) + 1, 255);
215 for (i
= 0; i
< 16; ++i
)
217 do_test (0, 0, i
, i
+ 256, 127);
218 do_test (0, 0, i
, i
+ 256, 255);
219 do_test (0, i
, i
, i
+ 256, 127);
220 do_test (i
, 0, i
, i
+ 256, 255);
223 for (i
= 1; i
< 8; ++i
)
225 do_test (0, 0, 8 << i
, (8 << i
) + 256, 127);
226 do_test (8 - i
, 2 * i
, (8 << i
), (8 << i
) + 256, 127);
229 for (i
= 1; i
< 8; ++i
)
231 do_test (i
, 2 * i
, (8 << i
), (8 << i
) + 256, 127);
232 do_test (2 * i
, i
, (8 << i
), (8 << i
) + 256, 255);
233 do_test (i
, i
, (8 << i
), (8 << i
) + 256, 127);
234 do_test (i
, i
, (8 << i
), (8 << i
) + 256, 255);
237 for (i
= 0; i
< 16; ++i
)
239 do_test (0, 0, i
, i
, 127);
240 do_test (0, 0, i
, i
+ 2, 255);
241 do_test (0, i
, i
, i
+ 3, 127);
242 do_test (i
, 0, i
, i
+ 4, 255);
245 for (i
= 1; i
< 8; ++i
)
247 do_test (0, 0, 8 << i
, (8 << i
) - 15, 127);
248 do_test (8 - i
, 2 * i
, (8 << i
), (8 << i
) + 5, 127);
251 for (i
= 1; i
< 8; ++i
)
253 do_test (i
, 2 * i
, (8 << i
), (8 << i
) + i
, 127);
254 do_test (2 * i
, i
, (8 << i
), (8 << i
) + (i
- 1), 255);
255 do_test (i
, i
, (8 << i
), (8 << i
) + i
+ 2, 127);
256 do_test (i
, i
, (8 << i
), (8 << i
) + i
+ 3, 255);
262 #include "../test-skeleton.c"