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8da872d9 | 1 | /* ztest.c -- Test for libbacktrace inflate code. |
99dee823 | 2 | Copyright (C) 2017-2021 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 | |
628ee3c2 ILT |
92 | error_callback_compress (void *vdata ATTRIBUTE_UNUSED, const char *msg, |
93 | int errnum) | |
8da872d9 ILT |
94 | { |
95 | fprintf (stderr, "%s", msg); | |
96 | if (errnum > 0) | |
97 | fprintf (stderr, ": %s", strerror (errnum)); | |
98 | fprintf (stderr, "\n"); | |
99 | exit (EXIT_FAILURE); | |
100 | } | |
101 | ||
102 | static const struct zlib_test tests[] = | |
103 | { | |
104 | { | |
105 | "empty", | |
106 | "", | |
566588f1 | 107 | 0, |
8da872d9 ILT |
108 | "\x78\x9c\x03\x00\x00\x00\x00\x01", |
109 | 8, | |
110 | }, | |
111 | { | |
112 | "hello", | |
113 | "hello, world\n", | |
566588f1 | 114 | 0, |
8da872d9 ILT |
115 | ("\x78\x9c\xca\x48\xcd\xc9\xc9\xd7\x51\x28\xcf" |
116 | "\x2f\xca\x49\xe1\x02\x04\x00\x00\xff\xff\x21\xe7\x04\x93"), | |
117 | 25, | |
118 | }, | |
119 | { | |
120 | "goodbye", | |
121 | "goodbye, world", | |
566588f1 | 122 | 0, |
8da872d9 ILT |
123 | ("\x78\x9c\x4b\xcf\xcf\x4f\x49\xaa" |
124 | "\x4c\xd5\x51\x28\xcf\x2f\xca\x49" | |
125 | "\x01\x00\x28\xa5\x05\x5e"), | |
126 | 22, | |
566588f1 ILT |
127 | }, |
128 | { | |
129 | "ranges", | |
130 | ("\xcc\x11\x00\x00\x00\x00\x00\x00\xd5\x13\x00\x00\x00\x00\x00\x00" | |
131 | "\x1c\x14\x00\x00\x00\x00\x00\x00\x72\x14\x00\x00\x00\x00\x00\x00" | |
132 | "\x9d\x14\x00\x00\x00\x00\x00\x00\xd5\x14\x00\x00\x00\x00\x00\x00" | |
133 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
134 | "\xfb\x12\x00\x00\x00\x00\x00\x00\x09\x13\x00\x00\x00\x00\x00\x00" | |
135 | "\x0c\x13\x00\x00\x00\x00\x00\x00\xcb\x13\x00\x00\x00\x00\x00\x00" | |
136 | "\x29\x14\x00\x00\x00\x00\x00\x00\x4e\x14\x00\x00\x00\x00\x00\x00" | |
137 | "\x9d\x14\x00\x00\x00\x00\x00\x00\xd5\x14\x00\x00\x00\x00\x00\x00" | |
138 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
139 | "\xfb\x12\x00\x00\x00\x00\x00\x00\x09\x13\x00\x00\x00\x00\x00\x00" | |
140 | "\x67\x13\x00\x00\x00\x00\x00\x00\xcb\x13\x00\x00\x00\x00\x00\x00" | |
141 | "\x9d\x14\x00\x00\x00\x00\x00\x00\xd5\x14\x00\x00\x00\x00\x00\x00" | |
142 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
143 | "\x5f\x0b\x00\x00\x00\x00\x00\x00\x6c\x0b\x00\x00\x00\x00\x00\x00" | |
144 | "\x7d\x0b\x00\x00\x00\x00\x00\x00\x7e\x0c\x00\x00\x00\x00\x00\x00" | |
145 | "\x38\x0f\x00\x00\x00\x00\x00\x00\x5c\x0f\x00\x00\x00\x00\x00\x00" | |
146 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
147 | "\x83\x0c\x00\x00\x00\x00\x00\x00\xfa\x0c\x00\x00\x00\x00\x00\x00" | |
148 | "\xfd\x0d\x00\x00\x00\x00\x00\x00\xef\x0e\x00\x00\x00\x00\x00\x00" | |
149 | "\x14\x0f\x00\x00\x00\x00\x00\x00\x38\x0f\x00\x00\x00\x00\x00\x00" | |
150 | "\x9f\x0f\x00\x00\x00\x00\x00\x00\xac\x0f\x00\x00\x00\x00\x00\x00" | |
151 | "\xdb\x0f\x00\x00\x00\x00\x00\x00\xff\x0f\x00\x00\x00\x00\x00\x00" | |
152 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
153 | "\xfd\x0d\x00\x00\x00\x00\x00\x00\xd8\x0e\x00\x00\x00\x00\x00\x00" | |
154 | "\x9f\x0f\x00\x00\x00\x00\x00\x00\xac\x0f\x00\x00\x00\x00\x00\x00" | |
155 | "\xdb\x0f\x00\x00\x00\x00\x00\x00\xff\x0f\x00\x00\x00\x00\x00\x00" | |
156 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
157 | "\xfa\x0c\x00\x00\x00\x00\x00\x00\xea\x0d\x00\x00\x00\x00\x00\x00" | |
158 | "\xef\x0e\x00\x00\x00\x00\x00\x00\x14\x0f\x00\x00\x00\x00\x00\x00" | |
159 | "\x5c\x0f\x00\x00\x00\x00\x00\x00\x9f\x0f\x00\x00\x00\x00\x00\x00" | |
160 | "\xac\x0f\x00\x00\x00\x00\x00\x00\xdb\x0f\x00\x00\x00\x00\x00\x00" | |
161 | "\xff\x0f\x00\x00\x00\x00\x00\x00\x2c\x10\x00\x00\x00\x00\x00\x00" | |
162 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
163 | "\x60\x11\x00\x00\x00\x00\x00\x00\xd1\x16\x00\x00\x00\x00\x00\x00" | |
164 | "\x40\x0b\x00\x00\x00\x00\x00\x00\x2c\x10\x00\x00\x00\x00\x00\x00" | |
165 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
166 | "\x7a\x00\x00\x00\x00\x00\x00\x00\xb6\x00\x00\x00\x00\x00\x00\x00" | |
167 | "\x9f\x01\x00\x00\x00\x00\x00\x00\xa7\x01\x00\x00\x00\x00\x00\x00" | |
168 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" | |
169 | "\x7a\x00\x00\x00\x00\x00\x00\x00\xa9\x00\x00\x00\x00\x00\x00\x00" | |
170 | "\x9f\x01\x00\x00\x00\x00\x00\x00\xa7\x01\x00\x00\x00\x00\x00\x00" | |
171 | "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"), | |
172 | 672, | |
173 | ("\x78\x9c\x3b\x23\xc8\x00\x06\x57\x85\x21\xb4\x8c\x08\x84\x2e\x82" | |
174 | "\xd2\x73\xa1\xf4\x55\x28\x8d\x0e\x7e\x0b\x41\x68\x4e\xa8\x7e\x1e" | |
175 | "\x28\x7d\x1a\x4a\x6b\x42\xf5\xf9\x91\x69\x5e\x3a\x9a\x79\x84\xf4" | |
176 | "\xc7\x73\x43\xe8\x1c\x28\x5d\x0b\xa5\xeb\x78\x20\xb4\x05\x3f\x84" | |
177 | "\x8e\xe1\xc7\xae\xbf\x19\xaa\xee\x17\x94\xfe\xcb\x0b\xa1\xdf\xf3" | |
178 | "\x41\x68\x11\x7e\x54\x73\xe6\x43\xe9\x35\x50\xfa\x36\x94\xfe\x8f" | |
179 | "\xc3\x7c\x98\x79\x37\xf8\xc8\xd3\x0f\x73\xd7\x2b\x1c\xee\x8a\x21" | |
180 | "\xd2\x5d\x3a\x02\xd8\xcd\x4f\x80\xa6\x87\x8b\x62\x10\xda\x81\x1b" | |
181 | "\xbf\xfa\x2a\x28\xbd\x0d\x4a\xcf\x67\x84\xd0\xcb\x19\xf1\xab\x5f" | |
182 | "\x49\xa4\x7a\x00\x48\x97\x29\xd4"), | |
183 | 152, | |
8da872d9 ILT |
184 | } |
185 | }; | |
186 | ||
187 | /* Test the hand coded samples. */ | |
188 | ||
189 | static void | |
190 | test_samples (struct backtrace_state *state) | |
191 | { | |
192 | size_t i; | |
193 | ||
194 | for (i = 0; i < sizeof tests / sizeof tests[0]; ++i) | |
195 | { | |
196 | char *p; | |
197 | size_t v; | |
198 | size_t j; | |
199 | unsigned char *uncompressed; | |
200 | size_t uncompressed_len; | |
201 | ||
202 | p = malloc (12 + tests[i].compressed_len); | |
203 | memcpy (p, "ZLIB", 4); | |
566588f1 ILT |
204 | v = tests[i].uncompressed_len; |
205 | if (v == 0) | |
206 | v = strlen (tests[i].uncompressed); | |
8da872d9 ILT |
207 | for (j = 0; j < 8; ++j) |
208 | p[j + 4] = (v >> ((7 - j) * 8)) & 0xff; | |
209 | memcpy (p + 12, tests[i].compressed, tests[i].compressed_len); | |
210 | uncompressed = NULL; | |
211 | uncompressed_len = 0; | |
212 | if (!backtrace_uncompress_zdebug (state, (unsigned char *) p, | |
213 | tests[i].compressed_len + 12, | |
214 | error_callback_compress, NULL, | |
215 | &uncompressed, &uncompressed_len)) | |
216 | { | |
217 | fprintf (stderr, "test %s: uncompress failed\n", tests[i].name); | |
218 | ++failures; | |
219 | } | |
220 | else | |
221 | { | |
222 | if (uncompressed_len != v) | |
223 | { | |
224 | fprintf (stderr, | |
225 | "test %s: got uncompressed length %zu, want %zu\n", | |
226 | tests[i].name, uncompressed_len, v); | |
227 | ++failures; | |
228 | } | |
229 | else if (memcmp (tests[i].uncompressed, uncompressed, v) != 0) | |
230 | { | |
231 | size_t j; | |
232 | ||
233 | fprintf (stderr, "test %s: uncompressed data mismatch\n", | |
234 | tests[i].name); | |
235 | for (j = 0; j < v; ++j) | |
236 | if (tests[i].uncompressed[j] != uncompressed[j]) | |
237 | fprintf (stderr, " %zu: got %#x want %#x\n", j, | |
238 | uncompressed[j], tests[i].uncompressed[j]); | |
239 | ++failures; | |
240 | } | |
241 | else | |
242 | printf ("PASS: inflate %s\n", tests[i].name); | |
243 | ||
244 | backtrace_free (state, uncompressed, uncompressed_len, | |
245 | error_callback_compress, NULL); | |
246 | } | |
247 | } | |
248 | } | |
249 | ||
8398c1df | 250 | #ifdef HAVE_ZLIB |
8da872d9 ILT |
251 | |
252 | /* Given a set of TRIALS timings, discard the lowest and highest | |
253 | values and return the mean average of the rest. */ | |
254 | ||
255 | static size_t | |
256 | average_time (const size_t *times, size_t trials) | |
257 | { | |
258 | size_t imax; | |
259 | size_t max; | |
260 | size_t imin; | |
261 | size_t min; | |
262 | size_t i; | |
263 | size_t sum; | |
264 | ||
265 | imin = 0; | |
266 | imax = 0; | |
267 | min = times[0]; | |
268 | max = times[0]; | |
269 | for (i = 1; i < trials; ++i) | |
270 | { | |
271 | if (times[i] < min) | |
272 | { | |
273 | imin = i; | |
274 | min = times[i]; | |
275 | } | |
276 | if (times[i] > max) | |
277 | { | |
278 | imax = i; | |
279 | max = times[i]; | |
280 | } | |
281 | } | |
282 | ||
283 | sum = 0; | |
284 | for (i = 0; i < trials; ++i) | |
285 | { | |
286 | if (i != imax && i != imin) | |
287 | sum += times[i]; | |
288 | } | |
289 | return sum / (trials - 2); | |
290 | } | |
291 | ||
292 | #endif | |
293 | ||
294 | /* Test a larger text, if available. */ | |
295 | ||
296 | static void | |
d2ec2786 | 297 | test_large (struct backtrace_state *state ATTRIBUTE_UNUSED) |
8da872d9 ILT |
298 | { |
299 | #ifdef HAVE_ZLIB | |
300 | unsigned char *orig_buf; | |
301 | size_t orig_bufsize; | |
302 | size_t i; | |
303 | char *compressed_buf; | |
304 | size_t compressed_bufsize; | |
305 | unsigned long compress_sizearg; | |
306 | unsigned char *uncompressed_buf; | |
307 | size_t uncompressed_bufsize; | |
308 | int r; | |
309 | clockid_t cid; | |
310 | struct timespec ts1; | |
311 | struct timespec ts2; | |
312 | size_t ctime; | |
313 | size_t ztime; | |
314 | const size_t trials = 16; | |
315 | size_t ctimes[16]; | |
316 | size_t ztimes[16]; | |
317 | static const char * const names[] = { | |
9a3d019a ILT |
318 | "Isaac.Newton-Opticks.txt", |
319 | "../libgo/go/testdata/Isaac.Newton-Opticks.txt", | |
8da872d9 ILT |
320 | }; |
321 | ||
322 | orig_buf = NULL; | |
323 | orig_bufsize = 0; | |
324 | uncompressed_buf = NULL; | |
325 | compressed_buf = NULL; | |
326 | ||
327 | for (i = 0; i < sizeof names / sizeof names[0]; ++i) | |
328 | { | |
329 | size_t len; | |
330 | char *namebuf; | |
331 | FILE *e; | |
332 | struct stat st; | |
333 | char *rbuf; | |
334 | size_t got; | |
335 | ||
336 | len = strlen (SRCDIR) + strlen (names[i]) + 2; | |
337 | namebuf = malloc (len); | |
338 | if (namebuf == NULL) | |
339 | { | |
340 | perror ("malloc"); | |
341 | goto fail; | |
342 | } | |
343 | snprintf (namebuf, len, "%s/%s", SRCDIR, names[i]); | |
344 | e = fopen (namebuf, "r"); | |
345 | free (namebuf); | |
346 | if (e == NULL) | |
347 | continue; | |
348 | if (fstat (fileno (e), &st) < 0) | |
349 | { | |
350 | perror ("fstat"); | |
351 | fclose (e); | |
352 | continue; | |
353 | } | |
354 | rbuf = malloc (st.st_size); | |
355 | if (rbuf == NULL) | |
356 | { | |
357 | perror ("malloc"); | |
358 | goto fail; | |
359 | } | |
360 | got = fread (rbuf, 1, st.st_size, e); | |
361 | fclose (e); | |
362 | if (got > 0) | |
363 | { | |
628ee3c2 | 364 | orig_buf = (unsigned char *) rbuf; |
8da872d9 ILT |
365 | orig_bufsize = got; |
366 | break; | |
367 | } | |
368 | free (rbuf); | |
369 | } | |
370 | ||
371 | if (orig_buf == NULL) | |
372 | { | |
373 | /* We couldn't find an input file. */ | |
374 | printf ("UNSUPPORTED: inflate large\n"); | |
375 | return; | |
376 | } | |
377 | ||
378 | compressed_bufsize = compressBound (orig_bufsize) + 12; | |
379 | compressed_buf = malloc (compressed_bufsize); | |
380 | if (compressed_buf == NULL) | |
381 | { | |
382 | perror ("malloc"); | |
383 | goto fail; | |
384 | } | |
385 | ||
386 | compress_sizearg = compressed_bufsize - 12; | |
628ee3c2 | 387 | r = compress ((unsigned char *) compressed_buf + 12, &compress_sizearg, |
8da872d9 ILT |
388 | orig_buf, orig_bufsize); |
389 | if (r != Z_OK) | |
390 | { | |
391 | fprintf (stderr, "zlib compress failed: %d\n", r); | |
392 | goto fail; | |
393 | } | |
394 | ||
395 | compressed_bufsize = compress_sizearg + 12; | |
396 | ||
397 | /* Prepare the header that our library expects. */ | |
398 | memcpy (compressed_buf, "ZLIB", 4); | |
399 | for (i = 0; i < 8; ++i) | |
400 | compressed_buf[i + 4] = (orig_bufsize >> ((7 - i) * 8)) & 0xff; | |
401 | ||
402 | uncompressed_buf = malloc (orig_bufsize); | |
403 | if (uncompressed_buf == NULL) | |
404 | { | |
405 | perror ("malloc"); | |
406 | goto fail; | |
407 | } | |
408 | uncompressed_bufsize = orig_bufsize; | |
409 | ||
628ee3c2 ILT |
410 | if (!backtrace_uncompress_zdebug (state, (unsigned char *) compressed_buf, |
411 | compressed_bufsize, | |
8da872d9 ILT |
412 | error_callback_compress, NULL, |
413 | &uncompressed_buf, &uncompressed_bufsize)) | |
414 | { | |
415 | fprintf (stderr, "inflate large: backtrace_uncompress_zdebug failed\n"); | |
416 | goto fail; | |
417 | } | |
418 | ||
419 | if (uncompressed_bufsize != orig_bufsize) | |
420 | { | |
421 | fprintf (stderr, | |
422 | "inflate large: got uncompressed length %zu, want %zu\n", | |
423 | uncompressed_bufsize, orig_bufsize); | |
424 | goto fail; | |
425 | } | |
426 | ||
427 | if (memcmp (uncompressed_buf, orig_buf, uncompressed_bufsize) != 0) | |
428 | { | |
429 | fprintf (stderr, "inflate large: uncompressed data mismatch\n"); | |
430 | goto fail; | |
431 | } | |
432 | ||
433 | printf ("PASS: inflate large\n"); | |
434 | ||
435 | for (i = 0; i < trials; ++i) | |
436 | { | |
549d24e9 ILT |
437 | unsigned long uncompress_sizearg; |
438 | ||
8398c1df | 439 | cid = ZLIB_CLOCK_GETTIME_ARG; |
8da872d9 ILT |
440 | if (clock_gettime (cid, &ts1) < 0) |
441 | { | |
8398c1df ILT |
442 | if (errno == EINVAL) |
443 | return; | |
8da872d9 ILT |
444 | perror ("clock_gettime"); |
445 | return; | |
446 | } | |
447 | ||
628ee3c2 ILT |
448 | if (!backtrace_uncompress_zdebug (state, |
449 | (unsigned char *) compressed_buf, | |
8da872d9 ILT |
450 | compressed_bufsize, |
451 | error_callback_compress, NULL, | |
452 | &uncompressed_buf, | |
453 | &uncompressed_bufsize)) | |
454 | { | |
455 | fprintf (stderr, | |
456 | ("inflate large: " | |
457 | "benchmark backtrace_uncompress_zdebug failed\n")); | |
458 | return; | |
459 | } | |
460 | ||
461 | if (clock_gettime (cid, &ts2) < 0) | |
462 | { | |
463 | perror ("clock_gettime"); | |
464 | return; | |
465 | } | |
466 | ||
467 | ctime = (ts2.tv_sec - ts1.tv_sec) * 1000000000; | |
468 | ctime += ts2.tv_nsec - ts1.tv_nsec; | |
469 | ctimes[i] = ctime; | |
470 | ||
471 | if (clock_gettime (cid, &ts1) < 0) | |
472 | { | |
473 | perror("clock_gettime"); | |
474 | return; | |
475 | } | |
476 | ||
549d24e9 | 477 | uncompress_sizearg = uncompressed_bufsize; |
628ee3c2 ILT |
478 | r = uncompress ((unsigned char *) uncompressed_buf, &uncompress_sizearg, |
479 | (unsigned char *) compressed_buf + 12, | |
480 | compressed_bufsize - 12); | |
8da872d9 ILT |
481 | |
482 | if (clock_gettime (cid, &ts2) < 0) | |
483 | { | |
484 | perror ("clock_gettime"); | |
485 | return; | |
486 | } | |
487 | ||
488 | if (r != Z_OK) | |
489 | { | |
490 | fprintf (stderr, | |
491 | "inflate large: benchmark zlib uncompress failed: %d\n", | |
492 | r); | |
493 | return; | |
494 | } | |
495 | ||
496 | ztime = (ts2.tv_sec - ts1.tv_sec) * 1000000000; | |
497 | ztime += ts2.tv_nsec - ts1.tv_nsec; | |
498 | ztimes[i] = ztime; | |
499 | } | |
500 | ||
501 | /* Toss the highest and lowest times and average the rest. */ | |
502 | ctime = average_time (ctimes, trials); | |
503 | ztime = average_time (ztimes, trials); | |
504 | ||
a978e26b ILT |
505 | printf ("backtrace: %zu ns\n", ctime); |
506 | printf ("zlib : %zu ns\n", ztime); | |
507 | printf ("ratio : %g\n", (double) ztime / (double) ctime); | |
8da872d9 ILT |
508 | |
509 | return; | |
510 | ||
511 | fail: | |
512 | printf ("FAIL: inflate large\n"); | |
513 | ++failures; | |
514 | ||
515 | if (orig_buf != NULL) | |
516 | free (orig_buf); | |
517 | if (compressed_buf != NULL) | |
518 | free (compressed_buf); | |
519 | if (uncompressed_buf != NULL) | |
520 | free (uncompressed_buf); | |
521 | ||
522 | #else /* !HAVE_ZLIB */ | |
523 | ||
524 | printf ("UNSUPPORTED: inflate large\n"); | |
525 | ||
526 | #endif /* !HAVE_ZLIB */ | |
527 | } | |
528 | ||
529 | int | |
530 | main (int argc ATTRIBUTE_UNUSED, char **argv) | |
531 | { | |
532 | struct backtrace_state *state; | |
533 | ||
534 | state = backtrace_create_state (argv[0], BACKTRACE_SUPPORTS_THREADS, | |
535 | error_callback_create, NULL); | |
536 | ||
537 | test_samples (state); | |
538 | test_large (state); | |
539 | ||
540 | exit (failures != 0 ? EXIT_FAILURE : EXIT_SUCCESS); | |
541 | } |