Commit | Line | Data |
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6dc2ca62 MD |
1 | /* |
2 | * test-bitfield.c | |
3 | * | |
d79865b9 | 4 | * BabelTrace - bitfield test program |
6dc2ca62 | 5 | * |
6e654c49 | 6 | * Copyright 2010-2019 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
6dc2ca62 MD |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
9cb421e5 | 10 | * the Free Software Foundation; under version 2 of the License. |
6dc2ca62 MD |
11 | * |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along | |
18 | * with this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
20 | */ | |
21 | ||
3d9990ac | 22 | #include <babeltrace/bitfield-internal.h> |
47e0f2e2 MD |
23 | #include <time.h> |
24 | #include <stdlib.h> | |
6dc2ca62 MD |
25 | #include <stdio.h> |
26 | ||
1833a3d1 | 27 | #include <tap/tap.h> |
9e8e57d0 | 28 | |
6dc2ca62 MD |
29 | unsigned int glob; |
30 | ||
31 | /* | |
32 | * This function is only declared to show the size of a bitfield write in | |
33 | * objdump. | |
34 | */ | |
35 | void fct(void) | |
36 | { | |
47e0f2e2 | 37 | bt_bitfield_write(&glob, unsigned int, 12, 15, 0x12345678); |
6dc2ca62 MD |
38 | } |
39 | ||
40 | /* Test array size, in bytes */ | |
41 | #define TEST_LEN 128 | |
42 | #define NR_TESTS 10 | |
6e654c49 MD |
43 | #define SIGNED_INT_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%X, signed int dest, varying read unit size" |
44 | #define SIGNED_INT_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%X, signed int source, varying write unit size" | |
45 | #define SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, signed long long dest, varying read unit size" | |
46 | #define SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, signed long long source, varying write unit size" | |
47 | #define UNSIGNED_INT_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%X, unsigned int dest, varying read unit size" | |
48 | #define UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%X, unsigned int source, varying write unit size" | |
49 | #define UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, unsigned long long dest, varying read unit size" | |
50 | #define UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, unsigned long long source, varying write unit size" | |
9e8e57d0 JG |
51 | #define DIAG_FMT_STR "Failed reading value written \"%s\"-wise, with start=%i" \ |
52 | " and length=%i. Read %llX" | |
6dc2ca62 | 53 | |
6e654c49 MD |
54 | static |
55 | unsigned int fls_u64(uint64_t x) | |
6dc2ca62 | 56 | { |
6e654c49 | 57 | unsigned int r = 64; |
6dc2ca62 | 58 | |
6e654c49 MD |
59 | if (!x) |
60 | return 0; | |
6dc2ca62 | 61 | |
6e654c49 MD |
62 | if (!(x & 0xFFFFFFFF00000000ULL)) { |
63 | x <<= 32; | |
64 | r -= 32; | |
65 | } | |
66 | if (!(x & 0xFFFF000000000000ULL)) { | |
67 | x <<= 16; | |
68 | r -= 16; | |
69 | } | |
70 | if (!(x & 0xFF00000000000000ULL)) { | |
71 | x <<= 8; | |
72 | r -= 8; | |
73 | } | |
74 | if (!(x & 0xF000000000000000ULL)) { | |
75 | x <<= 4; | |
76 | r -= 4; | |
77 | } | |
78 | if (!(x & 0xC000000000000000ULL)) { | |
79 | x <<= 2; | |
80 | r -= 2; | |
81 | } | |
82 | if (!(x & 0x8000000000000000ULL)) { | |
83 | x <<= 1; | |
84 | r -= 1; | |
85 | } | |
86 | return r; | |
6dc2ca62 MD |
87 | } |
88 | ||
6e654c49 MD |
89 | static |
90 | unsigned int fls_u32(uint32_t x) | |
6dc2ca62 | 91 | { |
6e654c49 | 92 | unsigned int r = 32; |
6dc2ca62 MD |
93 | |
94 | if (!x) | |
95 | return 0; | |
96 | if (!(x & 0xFFFF0000U)) { | |
97 | x <<= 16; | |
98 | r -= 16; | |
99 | } | |
100 | if (!(x & 0xFF000000U)) { | |
101 | x <<= 8; | |
102 | r -= 8; | |
103 | } | |
104 | if (!(x & 0xF0000000U)) { | |
105 | x <<= 4; | |
106 | r -= 4; | |
107 | } | |
108 | if (!(x & 0xC0000000U)) { | |
109 | x <<= 2; | |
110 | r -= 2; | |
111 | } | |
112 | if (!(x & 0x80000000U)) { | |
113 | x <<= 1; | |
114 | r -= 1; | |
115 | } | |
116 | return r; | |
117 | } | |
118 | ||
47e0f2e2 MD |
119 | #define print_byte_array(c, len) \ |
120 | do { \ | |
121 | unsigned long i; \ | |
122 | \ | |
123 | for (i = 0; i < (len); i++) { \ | |
124 | printf("0x%X", (c)[i]); \ | |
125 | if (i != (len) - 1) \ | |
126 | printf(" "); \ | |
127 | } \ | |
128 | printf("\n"); \ | |
129 | } while (0) | |
130 | ||
131 | #define init_byte_array(c, len, val) \ | |
132 | do { \ | |
133 | unsigned long i; \ | |
134 | \ | |
135 | for (i = 0; i < (len); i++) \ | |
136 | (c)[i] = (val); \ | |
137 | } while (0) | |
6dc2ca62 | 138 | |
9e8e57d0 | 139 | #define check_result(ref, val, buffer, typename, start, len, \ |
6e654c49 | 140 | desc_fmt_str) \ |
9e8e57d0 JG |
141 | ({ \ |
142 | if ((val) != (ref)) { \ | |
143 | fail(desc_fmt_str, ref); \ | |
144 | diag(DIAG_FMT_STR, #typename, start, len, val); \ | |
145 | printf("# "); \ | |
146 | print_byte_array(buffer, TEST_LEN); \ | |
147 | } \ | |
148 | (val) != (ref); \ | |
149 | }) | |
150 | ||
6e654c49 | 151 | void run_test_unsigned_write(unsigned int src_ui, unsigned long long src_ull) |
6dc2ca62 | 152 | { |
6e654c49 | 153 | unsigned int nrbits_ui, nrbits_ull; |
6dc2ca62 MD |
154 | union { |
155 | unsigned char c[TEST_LEN]; | |
156 | unsigned short s[TEST_LEN/sizeof(unsigned short)]; | |
157 | unsigned int i[TEST_LEN/sizeof(unsigned int)]; | |
158 | unsigned long l[TEST_LEN/sizeof(unsigned long)]; | |
159 | unsigned long long ll[TEST_LEN/sizeof(unsigned long long)]; | |
160 | } target; | |
380d60b1 | 161 | unsigned long long readval; |
6dc2ca62 | 162 | unsigned int s, l; |
6dc2ca62 | 163 | |
6e654c49 | 164 | nrbits_ui = fls_u32(src_ui); |
6dc2ca62 | 165 | |
6e654c49 | 166 | /* Write from unsigned integer src input. */ |
6dc2ca62 | 167 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { |
6e654c49 | 168 | for (l = nrbits_ui; l < (CHAR_BIT * TEST_LEN) - s; l++) { |
6dc2ca62 | 169 | init_byte_array(target.c, TEST_LEN, 0xFF); |
6e654c49 | 170 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
47e0f2e2 | 171 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 MD |
172 | if (check_result(src_ui, readval, target.c, unsigned char, |
173 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 174 | return; |
6dc2ca62 MD |
175 | } |
176 | ||
177 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 178 | bt_bitfield_write(target.s, unsigned short, s, l, src_ui); |
47e0f2e2 | 179 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 MD |
180 | if (check_result(src_ui, readval, target.c, unsigned short, |
181 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 182 | return; |
6dc2ca62 MD |
183 | } |
184 | ||
185 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 186 | bt_bitfield_write(target.i, unsigned int, s, l, src_ui); |
47e0f2e2 | 187 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 MD |
188 | if (check_result(src_ui, readval, target.c, unsigned int, |
189 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 190 | return; |
6dc2ca62 MD |
191 | } |
192 | ||
193 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 194 | bt_bitfield_write(target.l, unsigned long, s, l, src_ui); |
47e0f2e2 | 195 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 MD |
196 | if (check_result(src_ui, readval, target.c, unsigned long, |
197 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 198 | return; |
6dc2ca62 MD |
199 | } |
200 | ||
201 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 202 | bt_bitfield_write(target.ll, unsigned long long, s, l, src_ui); |
47e0f2e2 | 203 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 MD |
204 | if (check_result(src_ui, readval, target.c, unsigned long long, |
205 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 206 | return; |
6dc2ca62 MD |
207 | } |
208 | } | |
209 | } | |
6e654c49 MD |
210 | pass(UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR, src_ui); |
211 | ||
212 | nrbits_ull = fls_u64(src_ull); | |
213 | ||
214 | /* Write from unsigned long long src input. */ | |
215 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
216 | for (l = nrbits_ull; l < (CHAR_BIT * TEST_LEN) - s; l++) { | |
217 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
218 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); | |
219 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
220 | if (check_result(src_ull, readval, target.c, unsigned char, | |
221 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
222 | return; | |
223 | } | |
9e8e57d0 | 224 | |
6e654c49 MD |
225 | init_byte_array(target.c, TEST_LEN, 0xFF); |
226 | bt_bitfield_write(target.s, unsigned short, s, l, src_ull); | |
227 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
228 | if (check_result(src_ull, readval, target.c, unsigned short, | |
229 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
230 | return; | |
231 | } | |
232 | ||
233 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
234 | bt_bitfield_write(target.i, unsigned int, s, l, src_ull); | |
235 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
236 | if (check_result(src_ull, readval, target.c, unsigned int, | |
237 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
238 | return; | |
239 | } | |
240 | ||
241 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
242 | bt_bitfield_write(target.l, unsigned long, s, l, src_ull); | |
243 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
244 | if (check_result(src_ull, readval, target.c, unsigned long, | |
245 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
246 | return; | |
247 | } | |
248 | ||
249 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
250 | bt_bitfield_write(target.ll, unsigned long long, s, l, src_ull); | |
251 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
252 | if (check_result(src_ull, readval, target.c, unsigned long long, | |
253 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
254 | return; | |
255 | } | |
256 | } | |
257 | } | |
258 | pass(UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, src_ull); | |
6dc2ca62 MD |
259 | } |
260 | ||
6e654c49 | 261 | void run_test_unsigned_read(unsigned int src_ui, unsigned long long src_ull) |
6dc2ca62 | 262 | { |
6e654c49 MD |
263 | unsigned int nrbits_ui, nrbits_ull, readval_ui; |
264 | union { | |
265 | unsigned char c[TEST_LEN]; | |
266 | unsigned short s[TEST_LEN/sizeof(unsigned short)]; | |
267 | unsigned int i[TEST_LEN/sizeof(unsigned int)]; | |
268 | unsigned long l[TEST_LEN/sizeof(unsigned long)]; | |
269 | unsigned long long ll[TEST_LEN/sizeof(unsigned long long)]; | |
270 | } target; | |
271 | unsigned long long readval_ull; | |
272 | unsigned int s, l; | |
273 | ||
274 | nrbits_ui = fls_u32(src_ui); | |
275 | ||
276 | /* Read to unsigned integer readval output. */ | |
277 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
278 | for (l = nrbits_ui; l < (CHAR_BIT * TEST_LEN) - s; l++) { | |
279 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
280 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); | |
281 | bt_bitfield_read(target.c, unsigned char, s, l, &readval_ui); | |
282 | if (check_result(src_ui, readval_ui, target.c, unsigned char, | |
283 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
284 | return; | |
285 | } | |
286 | ||
287 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
288 | bt_bitfield_write(target.s, unsigned char, s, l, src_ui); | |
289 | bt_bitfield_read(target.c, unsigned short, s, l, &readval_ui); | |
290 | if (check_result(src_ui, readval_ui, target.c, unsigned short, | |
291 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
292 | return; | |
293 | } | |
294 | ||
295 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
296 | bt_bitfield_write(target.i, unsigned char, s, l, src_ui); | |
297 | bt_bitfield_read(target.c, unsigned int, s, l, &readval_ui); | |
298 | if (check_result(src_ui, readval_ui, target.c, unsigned int, | |
299 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
300 | return; | |
301 | } | |
302 | ||
303 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
304 | bt_bitfield_write(target.l, unsigned char, s, l, src_ui); | |
305 | bt_bitfield_read(target.c, unsigned long, s, l, &readval_ui); | |
306 | if (check_result(src_ui, readval_ui, target.c, unsigned long, | |
307 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
308 | return; | |
309 | } | |
310 | ||
311 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
312 | bt_bitfield_write(target.ll, unsigned char, s, l, src_ui); | |
313 | bt_bitfield_read(target.c, unsigned long long, s, l, &readval_ui); | |
314 | if (check_result(src_ui, readval_ui, target.c, unsigned long long, | |
315 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
316 | return; | |
317 | } | |
318 | } | |
319 | } | |
320 | pass(UNSIGNED_INT_READ_TEST_DESC_FMT_STR, src_ui); | |
321 | ||
322 | nrbits_ull = fls_u64(src_ull); | |
323 | ||
324 | /* Read to unsigned long long readval output. */ | |
325 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
326 | for (l = nrbits_ull; l < (CHAR_BIT * TEST_LEN) - s; l++) { | |
327 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
328 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); | |
329 | bt_bitfield_read(target.c, unsigned char, s, l, &readval_ull); | |
330 | if (check_result(src_ull, readval_ull, target.c, unsigned char, | |
331 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
332 | return; | |
333 | } | |
334 | ||
335 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
336 | bt_bitfield_write(target.s, unsigned char, s, l, src_ull); | |
337 | bt_bitfield_read(target.c, unsigned short, s, l, &readval_ull); | |
338 | if (check_result(src_ull, readval_ull, target.c, unsigned short, | |
339 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
340 | return; | |
341 | } | |
342 | ||
343 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
344 | bt_bitfield_write(target.i, unsigned char, s, l, src_ull); | |
345 | bt_bitfield_read(target.c, unsigned int, s, l, &readval_ull); | |
346 | if (check_result(src_ull, readval_ull, target.c, unsigned int, | |
347 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
348 | return; | |
349 | } | |
350 | ||
351 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
352 | bt_bitfield_write(target.l, unsigned char, s, l, src_ull); | |
353 | bt_bitfield_read(target.c, unsigned long, s, l, &readval_ull); | |
354 | if (check_result(src_ull, readval_ull, target.c, unsigned long, | |
355 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
356 | return; | |
357 | } | |
358 | ||
359 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
360 | bt_bitfield_write(target.ll, unsigned char, s, l, src_ull); | |
361 | bt_bitfield_read(target.c, unsigned long long, s, l, &readval_ull); | |
362 | if (check_result(src_ull, readval_ull, target.c, unsigned long long, | |
363 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
364 | return; | |
365 | } | |
366 | } | |
367 | } | |
368 | pass(UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, src_ull); | |
369 | } | |
370 | ||
371 | void run_test_unsigned(unsigned int src_ui, unsigned long long src_ull) | |
372 | { | |
373 | run_test_unsigned_write(src_ui, src_ull); | |
374 | run_test_unsigned_read(src_ui, src_ull); | |
375 | } | |
376 | ||
377 | void run_test_signed_write(int src_i, long long src_ll) | |
378 | { | |
379 | int nrbits_i, nrbits_ll; | |
6dc2ca62 | 380 | union { |
47e0f2e2 | 381 | signed char c[TEST_LEN]; |
6dc2ca62 MD |
382 | short s[TEST_LEN/sizeof(short)]; |
383 | int i[TEST_LEN/sizeof(int)]; | |
384 | long l[TEST_LEN/sizeof(long)]; | |
385 | long long ll[TEST_LEN/sizeof(long long)]; | |
386 | } target; | |
380d60b1 | 387 | long long readval; |
6dc2ca62 | 388 | unsigned int s, l; |
6dc2ca62 | 389 | |
6e654c49 MD |
390 | if (src_i & 0x80000000U) |
391 | nrbits_i = fls_u32(~src_i) + 1; /* Find least significant bit conveying sign */ | |
6dc2ca62 | 392 | else |
6e654c49 | 393 | nrbits_i = fls_u32(src_i) + 1; /* Keep sign at 0 */ |
6dc2ca62 | 394 | |
6e654c49 | 395 | /* Write from signed integer src input. */ |
9e8e57d0 | 396 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { |
6e654c49 | 397 | for (l = nrbits_i; l < (CHAR_BIT * TEST_LEN) - s; l++) { |
6dc2ca62 | 398 | init_byte_array(target.c, TEST_LEN, 0x0); |
6e654c49 | 399 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
47e0f2e2 | 400 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 MD |
401 | if (check_result(src_i, readval, target.c, signed char, |
402 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 403 | return; |
6dc2ca62 MD |
404 | } |
405 | ||
406 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 407 | bt_bitfield_write(target.s, short, s, l, src_i); |
47e0f2e2 | 408 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 MD |
409 | if (check_result(src_i, readval, target.c, short, |
410 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 411 | return; |
6dc2ca62 MD |
412 | } |
413 | ||
414 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 415 | bt_bitfield_write(target.i, int, s, l, src_i); |
47e0f2e2 | 416 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 MD |
417 | if (check_result(src_i, readval, target.c, int, |
418 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 419 | return; |
6dc2ca62 MD |
420 | } |
421 | ||
422 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 423 | bt_bitfield_write(target.l, long, s, l, src_i); |
47e0f2e2 | 424 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 MD |
425 | if (check_result(src_i, readval, target.c, long, |
426 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 427 | return; |
6dc2ca62 MD |
428 | } |
429 | ||
430 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 431 | bt_bitfield_write(target.ll, long long, s, l, src_i); |
47e0f2e2 | 432 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 MD |
433 | if (check_result(src_i, readval, target.c, long long, |
434 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 435 | return; |
6dc2ca62 MD |
436 | } |
437 | } | |
438 | } | |
6e654c49 MD |
439 | pass(SIGNED_INT_WRITE_TEST_DESC_FMT_STR, src_i); |
440 | ||
441 | if (src_ll & 0x8000000000000000ULL) | |
442 | nrbits_ll = fls_u64(~src_ll) + 1; /* Find least significant bit conveying sign */ | |
443 | else | |
444 | nrbits_ll = fls_u64(src_ll) + 1; /* Keep sign at 0 */ | |
445 | ||
446 | /* Write from signed long long src input. */ | |
447 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
448 | for (l = nrbits_ll; l < (CHAR_BIT * TEST_LEN) - s; l++) { | |
449 | init_byte_array(target.c, TEST_LEN, 0x0); | |
450 | bt_bitfield_write(target.c, signed char, s, l, src_ll); | |
451 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
452 | if (check_result(src_ll, readval, target.c, signed char, | |
453 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
454 | return; | |
455 | } | |
456 | ||
457 | init_byte_array(target.c, TEST_LEN, 0x0); | |
458 | bt_bitfield_write(target.s, short, s, l, src_ll); | |
459 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
460 | if (check_result(src_ll, readval, target.c, short, | |
461 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
462 | return; | |
463 | } | |
464 | ||
465 | init_byte_array(target.c, TEST_LEN, 0x0); | |
466 | bt_bitfield_write(target.i, int, s, l, src_ll); | |
467 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
468 | if (check_result(src_ll, readval, target.c, int, | |
469 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
470 | return; | |
471 | } | |
9e8e57d0 | 472 | |
6e654c49 MD |
473 | init_byte_array(target.c, TEST_LEN, 0x0); |
474 | bt_bitfield_write(target.l, long, s, l, src_ll); | |
475 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
476 | if (check_result(src_ll, readval, target.c, long, | |
477 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
478 | return; | |
479 | } | |
480 | ||
481 | init_byte_array(target.c, TEST_LEN, 0x0); | |
482 | bt_bitfield_write(target.ll, long long, s, l, src_ll); | |
483 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
484 | if (check_result(src_ll, readval, target.c, long long, | |
485 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
486 | return; | |
487 | } | |
488 | } | |
489 | } | |
490 | pass(SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, src_ll); | |
6dc2ca62 MD |
491 | } |
492 | ||
6e654c49 | 493 | void run_test_signed_read(int src_i, long long src_ll) |
6dc2ca62 | 494 | { |
6e654c49 MD |
495 | int nrbits_i, nrbits_ll, readval_i; |
496 | union { | |
497 | unsigned char c[TEST_LEN]; | |
498 | unsigned short s[TEST_LEN/sizeof(unsigned short)]; | |
499 | unsigned int i[TEST_LEN/sizeof(unsigned int)]; | |
500 | unsigned long l[TEST_LEN/sizeof(unsigned long)]; | |
501 | unsigned long long ll[TEST_LEN/sizeof(unsigned long long)]; | |
502 | } target; | |
503 | long long readval_ll; | |
504 | unsigned int s, l; | |
6dc2ca62 | 505 | |
6e654c49 MD |
506 | if (src_i & 0x80000000U) |
507 | nrbits_i = fls_u32(~src_i) + 1; /* Find least significant bit conveying sign */ | |
508 | else | |
509 | nrbits_i = fls_u32(src_i) + 1; /* Keep sign at 0 */ | |
6dc2ca62 | 510 | |
6e654c49 MD |
511 | /* Read to signed integer readval output. */ |
512 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
513 | for (l = nrbits_i; l < (CHAR_BIT * TEST_LEN) - s; l++) { | |
514 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
515 | bt_bitfield_write(target.c, signed char, s, l, src_i); | |
516 | bt_bitfield_read(target.c, signed char, s, l, &readval_i); | |
517 | if (check_result(src_i, readval_i, target.c, signed char, | |
518 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
519 | return; | |
520 | } | |
9e8e57d0 | 521 | |
6e654c49 MD |
522 | init_byte_array(target.c, TEST_LEN, 0xFF); |
523 | bt_bitfield_write(target.s, signed char, s, l, src_i); | |
524 | bt_bitfield_read(target.c, short, s, l, &readval_i); | |
525 | if (check_result(src_i, readval_i, target.c, short, | |
526 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
527 | return; | |
528 | } | |
9e8e57d0 | 529 | |
6e654c49 MD |
530 | init_byte_array(target.c, TEST_LEN, 0xFF); |
531 | bt_bitfield_write(target.i, signed char, s, l, src_i); | |
532 | bt_bitfield_read(target.c, int, s, l, &readval_i); | |
533 | if (check_result(src_i, readval_i, target.c, int, | |
534 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
535 | return; | |
536 | } | |
9e8e57d0 | 537 | |
6e654c49 MD |
538 | init_byte_array(target.c, TEST_LEN, 0xFF); |
539 | bt_bitfield_write(target.l, signed char, s, l, src_i); | |
540 | bt_bitfield_read(target.c, long, s, l, &readval_i); | |
541 | if (check_result(src_i, readval_i, target.c, long, | |
542 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
543 | return; | |
544 | } | |
9e8e57d0 | 545 | |
6e654c49 MD |
546 | init_byte_array(target.c, TEST_LEN, 0xFF); |
547 | bt_bitfield_write(target.ll, signed char, s, l, src_i); | |
548 | bt_bitfield_read(target.c, long long, s, l, &readval_i); | |
549 | if (check_result(src_i, readval_i, target.c, long long, | |
550 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
551 | return; | |
552 | } | |
553 | } | |
554 | } | |
555 | pass(SIGNED_INT_READ_TEST_DESC_FMT_STR, src_i); | |
556 | ||
557 | if (src_ll & 0x8000000000000000ULL) | |
558 | nrbits_ll = fls_u64(~src_ll) + 1; /* Find least significant bit conveying sign */ | |
559 | else | |
560 | nrbits_ll = fls_u64(src_ll) + 1; /* Keep sign at 0 */ | |
561 | ||
562 | /* Read to signed long long readval output. */ | |
563 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
564 | for (l = nrbits_ll; l < (CHAR_BIT * TEST_LEN) - s; l++) { | |
565 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
566 | bt_bitfield_write(target.c, signed char, s, l, src_ll); | |
567 | bt_bitfield_read(target.c, signed char, s, l, &readval_ll); | |
568 | if (check_result(src_ll, readval_ll, target.c, signed char, | |
569 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
570 | return; | |
571 | } | |
572 | ||
573 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
574 | bt_bitfield_write(target.s, signed char, s, l, src_ll); | |
575 | bt_bitfield_read(target.c, short, s, l, &readval_ll); | |
576 | if (check_result(src_ll, readval_ll, target.c, short, | |
577 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
578 | return; | |
579 | } | |
580 | ||
581 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
582 | bt_bitfield_write(target.i, signed char, s, l, src_ll); | |
583 | bt_bitfield_read(target.c, int, s, l, &readval_ll); | |
584 | if (check_result(src_ll, readval_ll, target.c, int, | |
585 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
586 | return; | |
587 | } | |
588 | ||
589 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
590 | bt_bitfield_write(target.l, signed char, s, l, src_ll); | |
591 | bt_bitfield_read(target.c, long, s, l, &readval_ll); | |
592 | if (check_result(src_ll, readval_ll, target.c, long, | |
593 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
594 | return; | |
595 | } | |
596 | ||
597 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
598 | bt_bitfield_write(target.ll, signed char, s, l, src_ll); | |
599 | bt_bitfield_read(target.c, long long, s, l, &readval_ll); | |
600 | if (check_result(src_ll, readval_ll, target.c, long long, | |
601 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
602 | return; | |
603 | } | |
604 | } | |
605 | } | |
606 | pass(SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, src_ll); | |
607 | } | |
608 | ||
609 | void run_test_signed(int src_i, long long src_ll) | |
610 | { | |
611 | run_test_signed_write(src_i, src_ll); | |
612 | run_test_signed_read(src_i, src_ll); | |
613 | } | |
614 | ||
615 | void run_test(void) | |
616 | { | |
617 | int i; | |
618 | ||
619 | plan_tests(NR_TESTS * 8 + 24); | |
620 | ||
621 | srand(time(NULL)); | |
622 | ||
623 | run_test_unsigned(0, 0); | |
624 | run_test_signed(0, 0); | |
625 | run_test_unsigned(1, 1); | |
626 | run_test_unsigned(~0U, ~0ULL); | |
627 | run_test_signed(-1U, -1ULL); | |
628 | run_test_signed(0x80000000U, 0x8000000000000000ULL); | |
6dc2ca62 MD |
629 | |
630 | for (i = 0; i < NR_TESTS; i++) { | |
6e654c49 MD |
631 | unsigned int src_ui = rand(); |
632 | unsigned long long src_ull = ((unsigned long long) (unsigned int) rand() << 32) | | |
633 | (unsigned long long) (unsigned int) rand(); | |
634 | ||
635 | run_test_unsigned(src_ui, src_ull); | |
636 | run_test_signed((int) src_ui, (long long) src_ull); | |
6dc2ca62 | 637 | } |
6dc2ca62 MD |
638 | } |
639 | ||
9e8e57d0 JG |
640 | static |
641 | int print_encodings(unsigned long src, unsigned int shift, unsigned int len) | |
6dc2ca62 | 642 | { |
6dc2ca62 MD |
643 | union { |
644 | unsigned char c[8]; | |
645 | unsigned short s[4]; | |
646 | unsigned int i[2]; | |
647 | unsigned long l[2]; | |
648 | unsigned long long ll[1]; | |
649 | } target; | |
380d60b1 | 650 | unsigned long long readval; |
6dc2ca62 | 651 | |
9e8e57d0 | 652 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 653 | bt_bitfield_write(target.c, unsigned char, shift, len, src); |
6dc2ca62 MD |
654 | printf("bytewise\n"); |
655 | print_byte_array(target.c, 8); | |
656 | ||
9e8e57d0 | 657 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 658 | bt_bitfield_write(target.s, unsigned short, shift, len, src); |
6dc2ca62 MD |
659 | printf("shortwise\n"); |
660 | print_byte_array(target.c, 8); | |
661 | ||
9e8e57d0 | 662 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 663 | bt_bitfield_write(target.i, unsigned int, shift, len, src); |
6dc2ca62 MD |
664 | printf("intwise\n"); |
665 | print_byte_array(target.c, 8); | |
666 | ||
9e8e57d0 | 667 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 668 | bt_bitfield_write(target.l, unsigned long, shift, len, src); |
6dc2ca62 MD |
669 | printf("longwise\n"); |
670 | print_byte_array(target.c, 8); | |
671 | ||
9e8e57d0 | 672 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 673 | bt_bitfield_write(target.ll, unsigned long long, shift, len, src); |
6dc2ca62 MD |
674 | printf("lluwise\n"); |
675 | print_byte_array(target.c, 8); | |
676 | ||
47e0f2e2 | 677 | bt_bitfield_read(target.c, unsigned char, shift, len, &readval); |
6dc2ca62 | 678 | printf("read: %llX\n", readval); |
9e8e57d0 | 679 | print_byte_array(target.c, 8); |
6dc2ca62 | 680 | |
9e8e57d0 JG |
681 | return 0; |
682 | } | |
683 | ||
684 | int main(int argc, char **argv) | |
685 | { | |
686 | if (argc > 1) { | |
687 | /* Print encodings */ | |
688 | unsigned long src; | |
689 | unsigned int shift, len; | |
690 | ||
691 | src = atoi(argv[1]); | |
692 | if (argc > 2) | |
693 | shift = atoi(argv[2]); | |
694 | else | |
695 | shift = 12; | |
696 | if (argc > 3) | |
697 | len = atoi(argv[3]); | |
698 | else | |
699 | len = 40; | |
700 | return print_encodings(src, shift, len); | |
701 | } | |
6dc2ca62 | 702 | |
9e8e57d0 JG |
703 | /* Run tap-formated tests */ |
704 | run_test(); | |
705 | return exit_status(); | |
6dc2ca62 | 706 | } |