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8da872d9 | 1 | /* ztest.c -- Test for libbacktrace inflate code. |
85ec4feb | 2 | Copyright (C) 2017-2018 Free Software Foundation, Inc. |
8da872d9 ILT |
3 | Written by Ian Lance Taylor, Google. |
4 | ||
5 | Redistribution and use in source and binary forms, with or without | |
6 | modification, are permitted provided that the following conditions are | |
7 | met: | |
8 | ||
9 | (1) Redistributions of source code must retain the above copyright | |
10 | notice, this list of conditions and the following disclaimer. | |
11 | ||
12 | (2) Redistributions in binary form must reproduce the above copyright | |
13 | notice, this list of conditions and the following disclaimer in | |
14 | the documentation and/or other materials provided with the | |
15 | distribution. | |
16 | ||
17 | (3) The name of the author may not be used to | |
18 | endorse or promote products derived from this software without | |
19 | specific prior written permission. | |
20 | ||
21 | THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
22 | IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
23 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
24 | DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, | |
25 | INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
26 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
27 | SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
29 | STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
30 | IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
31 | POSSIBILITY OF SUCH DAMAGE. */ | |
32 | ||
33 | #include "config.h" | |
34 | ||
8398c1df | 35 | #include <errno.h> |
8da872d9 ILT |
36 | #include <stdio.h> |
37 | #include <stdlib.h> | |
38 | #include <string.h> | |
39 | #include <time.h> | |
40 | #include <sys/types.h> | |
41 | #include <sys/stat.h> | |
42 | ||
43 | #ifdef HAVE_ZLIB | |
44 | #include <zlib.h> | |
45 | #endif | |
46 | ||
47 | #include "backtrace.h" | |
48 | #include "backtrace-supported.h" | |
49 | ||
50 | #include "internal.h" | |
51 | #include "testlib.h" | |
52 | ||
8398c1df ILT |
53 | #ifndef HAVE_CLOCK_GETTIME |
54 | ||
55 | typedef int xclockid_t; | |
56 | ||
57 | static int | |
58 | xclock_gettime (xclockid_t id ATTRIBUTE_UNUSED, | |
59 | struct timespec *ts ATTRIBUTE_UNUSED) | |
60 | { | |
61 | errno = EINVAL; | |
62 | return -1; | |
63 | } | |
64 | ||
65 | #define clockid_t xclockid_t | |
66 | #define clock_gettime xclock_gettime | |
67 | #undef CLOCK_REALTIME | |
68 | #define CLOCK_REALTIME 0 | |
69 | ||
70 | #endif /* !defined(HAVE_CLOCK_GETTIME) */ | |
71 | ||
72 | #ifdef CLOCK_PROCESS_CPUTIME_ID | |
73 | #define ZLIB_CLOCK_GETTIME_ARG CLOCK_PROCESS_CPUTIME_ID | |
74 | #else | |
75 | #define ZLIB_CLOCK_GETTIME_ARG CLOCK_REALTIME | |
76 | #endif | |
77 | ||
8da872d9 ILT |
78 | /* Some tests for the local zlib inflation code. */ |
79 | ||
80 | struct zlib_test | |
81 | { | |
82 | const char *name; | |
83 | const char *uncompressed; | |
566588f1 | 84 | size_t uncompressed_len; |
8da872d9 ILT |
85 | const char *compressed; |
86 | size_t compressed_len; | |
87 | }; | |
88 | ||
89 | /* Error callback. */ | |
90 | ||
91 | static void | |
92 | error_callback_compress (void *vdata, const char *msg, int errnum) | |
93 | { | |
94 | fprintf (stderr, "%s", msg); | |
95 | if (errnum > 0) | |
96 | fprintf (stderr, ": %s", strerror (errnum)); | |
97 | fprintf (stderr, "\n"); | |
98 | exit (EXIT_FAILURE); | |
99 | } | |
100 | ||
101 | static const struct zlib_test tests[] = | |
102 | { | |
103 | { | |
104 | "empty", | |
105 | "", | |
566588f1 | 106 | 0, |
8da872d9 ILT |
107 | "\x78\x9c\x03\x00\x00\x00\x00\x01", |
108 | 8, | |
109 | }, | |
110 | { | |
111 | "hello", | |
112 | "hello, world\n", | |
566588f1 | 113 | 0, |
8da872d9 ILT |
114 | ("\x78\x9c\xca\x48\xcd\xc9\xc9\xd7\x51\x28\xcf" |
115 | "\x2f\xca\x49\xe1\x02\x04\x00\x00\xff\xff\x21\xe7\x04\x93"), | |
116 | 25, | |
117 | }, | |
118 | { | |
119 | "goodbye", | |
120 | "goodbye, world", | |
566588f1 | 121 | 0, |
8da872d9 ILT |
122 | ("\x78\x9c\x4b\xcf\xcf\x4f\x49\xaa" |
123 | "\x4c\xd5\x51\x28\xcf\x2f\xca\x49" | |
124 | "\x01\x00\x28\xa5\x05\x5e"), | |
125 | 22, | |
566588f1 ILT |
126 | }, |
127 | { | |
128 | "ranges", | |
129 | ("\xcc\x11\x00\x00\x00\x00\x00\x00\xd5\x13\x00\x00\x00\x00\x00\x00" | |
130 | "\x1c\x14\x00\x00\x00\x00\x00\x00\x72\x14\x00\x00\x00\x00\x00\x00" | |
131 | "\x9d\x14\x00\x00\x00\x00\x00\x00\xd5\x14\x00\x00\x00\x00\x00\x00" | |
132 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
133 | "\xfb\x12\x00\x00\x00\x00\x00\x00\x09\x13\x00\x00\x00\x00\x00\x00" | |
134 | "\x0c\x13\x00\x00\x00\x00\x00\x00\xcb\x13\x00\x00\x00\x00\x00\x00" | |
135 | "\x29\x14\x00\x00\x00\x00\x00\x00\x4e\x14\x00\x00\x00\x00\x00\x00" | |
136 | "\x9d\x14\x00\x00\x00\x00\x00\x00\xd5\x14\x00\x00\x00\x00\x00\x00" | |
137 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
138 | "\xfb\x12\x00\x00\x00\x00\x00\x00\x09\x13\x00\x00\x00\x00\x00\x00" | |
139 | "\x67\x13\x00\x00\x00\x00\x00\x00\xcb\x13\x00\x00\x00\x00\x00\x00" | |
140 | "\x9d\x14\x00\x00\x00\x00\x00\x00\xd5\x14\x00\x00\x00\x00\x00\x00" | |
141 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
142 | "\x5f\x0b\x00\x00\x00\x00\x00\x00\x6c\x0b\x00\x00\x00\x00\x00\x00" | |
143 | "\x7d\x0b\x00\x00\x00\x00\x00\x00\x7e\x0c\x00\x00\x00\x00\x00\x00" | |
144 | "\x38\x0f\x00\x00\x00\x00\x00\x00\x5c\x0f\x00\x00\x00\x00\x00\x00" | |
145 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
146 | "\x83\x0c\x00\x00\x00\x00\x00\x00\xfa\x0c\x00\x00\x00\x00\x00\x00" | |
147 | "\xfd\x0d\x00\x00\x00\x00\x00\x00\xef\x0e\x00\x00\x00\x00\x00\x00" | |
148 | "\x14\x0f\x00\x00\x00\x00\x00\x00\x38\x0f\x00\x00\x00\x00\x00\x00" | |
149 | "\x9f\x0f\x00\x00\x00\x00\x00\x00\xac\x0f\x00\x00\x00\x00\x00\x00" | |
150 | "\xdb\x0f\x00\x00\x00\x00\x00\x00\xff\x0f\x00\x00\x00\x00\x00\x00" | |
151 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
152 | "\xfd\x0d\x00\x00\x00\x00\x00\x00\xd8\x0e\x00\x00\x00\x00\x00\x00" | |
153 | "\x9f\x0f\x00\x00\x00\x00\x00\x00\xac\x0f\x00\x00\x00\x00\x00\x00" | |
154 | "\xdb\x0f\x00\x00\x00\x00\x00\x00\xff\x0f\x00\x00\x00\x00\x00\x00" | |
155 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
156 | "\xfa\x0c\x00\x00\x00\x00\x00\x00\xea\x0d\x00\x00\x00\x00\x00\x00" | |
157 | "\xef\x0e\x00\x00\x00\x00\x00\x00\x14\x0f\x00\x00\x00\x00\x00\x00" | |
158 | "\x5c\x0f\x00\x00\x00\x00\x00\x00\x9f\x0f\x00\x00\x00\x00\x00\x00" | |
159 | "\xac\x0f\x00\x00\x00\x00\x00\x00\xdb\x0f\x00\x00\x00\x00\x00\x00" | |
160 | "\xff\x0f\x00\x00\x00\x00\x00\x00\x2c\x10\x00\x00\x00\x00\x00\x00" | |
161 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
162 | "\x60\x11\x00\x00\x00\x00\x00\x00\xd1\x16\x00\x00\x00\x00\x00\x00" | |
163 | "\x40\x0b\x00\x00\x00\x00\x00\x00\x2c\x10\x00\x00\x00\x00\x00\x00" | |
164 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
165 | "\x7a\x00\x00\x00\x00\x00\x00\x00\xb6\x00\x00\x00\x00\x00\x00\x00" | |
166 | "\x9f\x01\x00\x00\x00\x00\x00\x00\xa7\x01\x00\x00\x00\x00\x00\x00" | |
167 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
168 | "\x7a\x00\x00\x00\x00\x00\x00\x00\xa9\x00\x00\x00\x00\x00\x00\x00" | |
169 | "\x9f\x01\x00\x00\x00\x00\x00\x00\xa7\x01\x00\x00\x00\x00\x00\x00" | |
170 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"), | |
171 | 672, | |
172 | ("\x78\x9c\x3b\x23\xc8\x00\x06\x57\x85\x21\xb4\x8c\x08\x84\x2e\x82" | |
173 | "\xd2\x73\xa1\xf4\x55\x28\x8d\x0e\x7e\x0b\x41\x68\x4e\xa8\x7e\x1e" | |
174 | "\x28\x7d\x1a\x4a\x6b\x42\xf5\xf9\x91\x69\x5e\x3a\x9a\x79\x84\xf4" | |
175 | "\xc7\x73\x43\xe8\x1c\x28\x5d\x0b\xa5\xeb\x78\x20\xb4\x05\x3f\x84" | |
176 | "\x8e\xe1\xc7\xae\xbf\x19\xaa\xee\x17\x94\xfe\xcb\x0b\xa1\xdf\xf3" | |
177 | "\x41\x68\x11\x7e\x54\x73\xe6\x43\xe9\x35\x50\xfa\x36\x94\xfe\x8f" | |
178 | "\xc3\x7c\x98\x79\x37\xf8\xc8\xd3\x0f\x73\xd7\x2b\x1c\xee\x8a\x21" | |
179 | "\xd2\x5d\x3a\x02\xd8\xcd\x4f\x80\xa6\x87\x8b\x62\x10\xda\x81\x1b" | |
180 | "\xbf\xfa\x2a\x28\xbd\x0d\x4a\xcf\x67\x84\xd0\xcb\x19\xf1\xab\x5f" | |
181 | "\x49\xa4\x7a\x00\x48\x97\x29\xd4"), | |
182 | 152, | |
8da872d9 ILT |
183 | } |
184 | }; | |
185 | ||
186 | /* Test the hand coded samples. */ | |
187 | ||
188 | static void | |
189 | test_samples (struct backtrace_state *state) | |
190 | { | |
191 | size_t i; | |
192 | ||
193 | for (i = 0; i < sizeof tests / sizeof tests[0]; ++i) | |
194 | { | |
195 | char *p; | |
196 | size_t v; | |
197 | size_t j; | |
198 | unsigned char *uncompressed; | |
199 | size_t uncompressed_len; | |
200 | ||
201 | p = malloc (12 + tests[i].compressed_len); | |
202 | memcpy (p, "ZLIB", 4); | |
566588f1 ILT |
203 | v = tests[i].uncompressed_len; |
204 | if (v == 0) | |
205 | v = strlen (tests[i].uncompressed); | |
8da872d9 ILT |
206 | for (j = 0; j < 8; ++j) |
207 | p[j + 4] = (v >> ((7 - j) * 8)) & 0xff; | |
208 | memcpy (p + 12, tests[i].compressed, tests[i].compressed_len); | |
209 | uncompressed = NULL; | |
210 | uncompressed_len = 0; | |
211 | if (!backtrace_uncompress_zdebug (state, (unsigned char *) p, | |
212 | tests[i].compressed_len + 12, | |
213 | error_callback_compress, NULL, | |
214 | &uncompressed, &uncompressed_len)) | |
215 | { | |
216 | fprintf (stderr, "test %s: uncompress failed\n", tests[i].name); | |
217 | ++failures; | |
218 | } | |
219 | else | |
220 | { | |
221 | if (uncompressed_len != v) | |
222 | { | |
223 | fprintf (stderr, | |
224 | "test %s: got uncompressed length %zu, want %zu\n", | |
225 | tests[i].name, uncompressed_len, v); | |
226 | ++failures; | |
227 | } | |
228 | else if (memcmp (tests[i].uncompressed, uncompressed, v) != 0) | |
229 | { | |
230 | size_t j; | |
231 | ||
232 | fprintf (stderr, "test %s: uncompressed data mismatch\n", | |
233 | tests[i].name); | |
234 | for (j = 0; j < v; ++j) | |
235 | if (tests[i].uncompressed[j] != uncompressed[j]) | |
236 | fprintf (stderr, " %zu: got %#x want %#x\n", j, | |
237 | uncompressed[j], tests[i].uncompressed[j]); | |
238 | ++failures; | |
239 | } | |
240 | else | |
241 | printf ("PASS: inflate %s\n", tests[i].name); | |
242 | ||
243 | backtrace_free (state, uncompressed, uncompressed_len, | |
244 | error_callback_compress, NULL); | |
245 | } | |
246 | } | |
247 | } | |
248 | ||
8398c1df | 249 | #ifdef HAVE_ZLIB |
8da872d9 ILT |
250 | |
251 | /* Given a set of TRIALS timings, discard the lowest and highest | |
252 | values and return the mean average of the rest. */ | |
253 | ||
254 | static size_t | |
255 | average_time (const size_t *times, size_t trials) | |
256 | { | |
257 | size_t imax; | |
258 | size_t max; | |
259 | size_t imin; | |
260 | size_t min; | |
261 | size_t i; | |
262 | size_t sum; | |
263 | ||
264 | imin = 0; | |
265 | imax = 0; | |
266 | min = times[0]; | |
267 | max = times[0]; | |
268 | for (i = 1; i < trials; ++i) | |
269 | { | |
270 | if (times[i] < min) | |
271 | { | |
272 | imin = i; | |
273 | min = times[i]; | |
274 | } | |
275 | if (times[i] > max) | |
276 | { | |
277 | imax = i; | |
278 | max = times[i]; | |
279 | } | |
280 | } | |
281 | ||
282 | sum = 0; | |
283 | for (i = 0; i < trials; ++i) | |
284 | { | |
285 | if (i != imax && i != imin) | |
286 | sum += times[i]; | |
287 | } | |
288 | return sum / (trials - 2); | |
289 | } | |
290 | ||
291 | #endif | |
292 | ||
293 | /* Test a larger text, if available. */ | |
294 | ||
295 | static void | |
296 | test_large (struct backtrace_state *state) | |
297 | { | |
298 | #ifdef HAVE_ZLIB | |
299 | unsigned char *orig_buf; | |
300 | size_t orig_bufsize; | |
301 | size_t i; | |
302 | char *compressed_buf; | |
303 | size_t compressed_bufsize; | |
304 | unsigned long compress_sizearg; | |
305 | unsigned char *uncompressed_buf; | |
306 | size_t uncompressed_bufsize; | |
307 | int r; | |
308 | clockid_t cid; | |
309 | struct timespec ts1; | |
310 | struct timespec ts2; | |
311 | size_t ctime; | |
312 | size_t ztime; | |
313 | const size_t trials = 16; | |
314 | size_t ctimes[16]; | |
315 | size_t ztimes[16]; | |
316 | static const char * const names[] = { | |
317 | "Mark.Twain-Tom.Sawyer.txt", | |
318 | "../libgo/go/compress/testdata/Mark.Twain-Tom.Sawyer.txt" | |
319 | }; | |
320 | ||
321 | orig_buf = NULL; | |
322 | orig_bufsize = 0; | |
323 | uncompressed_buf = NULL; | |
324 | compressed_buf = NULL; | |
325 | ||
326 | for (i = 0; i < sizeof names / sizeof names[0]; ++i) | |
327 | { | |
328 | size_t len; | |
329 | char *namebuf; | |
330 | FILE *e; | |
331 | struct stat st; | |
332 | char *rbuf; | |
333 | size_t got; | |
334 | ||
335 | len = strlen (SRCDIR) + strlen (names[i]) + 2; | |
336 | namebuf = malloc (len); | |
337 | if (namebuf == NULL) | |
338 | { | |
339 | perror ("malloc"); | |
340 | goto fail; | |
341 | } | |
342 | snprintf (namebuf, len, "%s/%s", SRCDIR, names[i]); | |
343 | e = fopen (namebuf, "r"); | |
344 | free (namebuf); | |
345 | if (e == NULL) | |
346 | continue; | |
347 | if (fstat (fileno (e), &st) < 0) | |
348 | { | |
349 | perror ("fstat"); | |
350 | fclose (e); | |
351 | continue; | |
352 | } | |
353 | rbuf = malloc (st.st_size); | |
354 | if (rbuf == NULL) | |
355 | { | |
356 | perror ("malloc"); | |
357 | goto fail; | |
358 | } | |
359 | got = fread (rbuf, 1, st.st_size, e); | |
360 | fclose (e); | |
361 | if (got > 0) | |
362 | { | |
363 | orig_buf = rbuf; | |
364 | orig_bufsize = got; | |
365 | break; | |
366 | } | |
367 | free (rbuf); | |
368 | } | |
369 | ||
370 | if (orig_buf == NULL) | |
371 | { | |
372 | /* We couldn't find an input file. */ | |
373 | printf ("UNSUPPORTED: inflate large\n"); | |
374 | return; | |
375 | } | |
376 | ||
377 | compressed_bufsize = compressBound (orig_bufsize) + 12; | |
378 | compressed_buf = malloc (compressed_bufsize); | |
379 | if (compressed_buf == NULL) | |
380 | { | |
381 | perror ("malloc"); | |
382 | goto fail; | |
383 | } | |
384 | ||
385 | compress_sizearg = compressed_bufsize - 12; | |
386 | r = compress (compressed_buf + 12, &compress_sizearg, | |
387 | orig_buf, orig_bufsize); | |
388 | if (r != Z_OK) | |
389 | { | |
390 | fprintf (stderr, "zlib compress failed: %d\n", r); | |
391 | goto fail; | |
392 | } | |
393 | ||
394 | compressed_bufsize = compress_sizearg + 12; | |
395 | ||
396 | /* Prepare the header that our library expects. */ | |
397 | memcpy (compressed_buf, "ZLIB", 4); | |
398 | for (i = 0; i < 8; ++i) | |
399 | compressed_buf[i + 4] = (orig_bufsize >> ((7 - i) * 8)) & 0xff; | |
400 | ||
401 | uncompressed_buf = malloc (orig_bufsize); | |
402 | if (uncompressed_buf == NULL) | |
403 | { | |
404 | perror ("malloc"); | |
405 | goto fail; | |
406 | } | |
407 | uncompressed_bufsize = orig_bufsize; | |
408 | ||
409 | if (!backtrace_uncompress_zdebug (state, compressed_buf, compressed_bufsize, | |
410 | error_callback_compress, NULL, | |
411 | &uncompressed_buf, &uncompressed_bufsize)) | |
412 | { | |
413 | fprintf (stderr, "inflate large: backtrace_uncompress_zdebug failed\n"); | |
414 | goto fail; | |
415 | } | |
416 | ||
417 | if (uncompressed_bufsize != orig_bufsize) | |
418 | { | |
419 | fprintf (stderr, | |
420 | "inflate large: got uncompressed length %zu, want %zu\n", | |
421 | uncompressed_bufsize, orig_bufsize); | |
422 | goto fail; | |
423 | } | |
424 | ||
425 | if (memcmp (uncompressed_buf, orig_buf, uncompressed_bufsize) != 0) | |
426 | { | |
427 | fprintf (stderr, "inflate large: uncompressed data mismatch\n"); | |
428 | goto fail; | |
429 | } | |
430 | ||
431 | printf ("PASS: inflate large\n"); | |
432 | ||
433 | for (i = 0; i < trials; ++i) | |
434 | { | |
549d24e9 ILT |
435 | unsigned long uncompress_sizearg; |
436 | ||
8398c1df | 437 | cid = ZLIB_CLOCK_GETTIME_ARG; |
8da872d9 ILT |
438 | if (clock_gettime (cid, &ts1) < 0) |
439 | { | |
8398c1df ILT |
440 | if (errno == EINVAL) |
441 | return; | |
8da872d9 ILT |
442 | perror ("clock_gettime"); |
443 | return; | |
444 | } | |
445 | ||
446 | if (!backtrace_uncompress_zdebug (state, compressed_buf, | |
447 | compressed_bufsize, | |
448 | error_callback_compress, NULL, | |
449 | &uncompressed_buf, | |
450 | &uncompressed_bufsize)) | |
451 | { | |
452 | fprintf (stderr, | |
453 | ("inflate large: " | |
454 | "benchmark backtrace_uncompress_zdebug failed\n")); | |
455 | return; | |
456 | } | |
457 | ||
458 | if (clock_gettime (cid, &ts2) < 0) | |
459 | { | |
460 | perror ("clock_gettime"); | |
461 | return; | |
462 | } | |
463 | ||
464 | ctime = (ts2.tv_sec - ts1.tv_sec) * 1000000000; | |
465 | ctime += ts2.tv_nsec - ts1.tv_nsec; | |
466 | ctimes[i] = ctime; | |
467 | ||
468 | if (clock_gettime (cid, &ts1) < 0) | |
469 | { | |
470 | perror("clock_gettime"); | |
471 | return; | |
472 | } | |
473 | ||
549d24e9 ILT |
474 | uncompress_sizearg = uncompressed_bufsize; |
475 | r = uncompress (uncompressed_buf, &uncompress_sizearg, | |
8da872d9 ILT |
476 | compressed_buf + 12, compressed_bufsize - 12); |
477 | ||
478 | if (clock_gettime (cid, &ts2) < 0) | |
479 | { | |
480 | perror ("clock_gettime"); | |
481 | return; | |
482 | } | |
483 | ||
484 | if (r != Z_OK) | |
485 | { | |
486 | fprintf (stderr, | |
487 | "inflate large: benchmark zlib uncompress failed: %d\n", | |
488 | r); | |
489 | return; | |
490 | } | |
491 | ||
492 | ztime = (ts2.tv_sec - ts1.tv_sec) * 1000000000; | |
493 | ztime += ts2.tv_nsec - ts1.tv_nsec; | |
494 | ztimes[i] = ztime; | |
495 | } | |
496 | ||
497 | /* Toss the highest and lowest times and average the rest. */ | |
498 | ctime = average_time (ctimes, trials); | |
499 | ztime = average_time (ztimes, trials); | |
500 | ||
a978e26b ILT |
501 | printf ("backtrace: %zu ns\n", ctime); |
502 | printf ("zlib : %zu ns\n", ztime); | |
503 | printf ("ratio : %g\n", (double) ztime / (double) ctime); | |
8da872d9 ILT |
504 | |
505 | return; | |
506 | ||
507 | fail: | |
508 | printf ("FAIL: inflate large\n"); | |
509 | ++failures; | |
510 | ||
511 | if (orig_buf != NULL) | |
512 | free (orig_buf); | |
513 | if (compressed_buf != NULL) | |
514 | free (compressed_buf); | |
515 | if (uncompressed_buf != NULL) | |
516 | free (uncompressed_buf); | |
517 | ||
518 | #else /* !HAVE_ZLIB */ | |
519 | ||
520 | printf ("UNSUPPORTED: inflate large\n"); | |
521 | ||
522 | #endif /* !HAVE_ZLIB */ | |
523 | } | |
524 | ||
525 | int | |
526 | main (int argc ATTRIBUTE_UNUSED, char **argv) | |
527 | { | |
528 | struct backtrace_state *state; | |
529 | ||
530 | state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, | |
531 | error_callback_create, NULL); | |
532 | ||
533 | test_samples (state); | |
534 | test_large (state); | |
535 | ||
536 | exit (failures != 0 ? EXIT_FAILURE : EXIT_SUCCESS); | |
537 | } |