Commit | Line | Data |
---|---|---|
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 | ||
57952005 | 22 | #include "compat/bitfield.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 | |
f3847c75 | 33 | * objdump. The declaration is there to avoid a -Wmissing-prototypes warning. |
6dc2ca62 | 34 | */ |
f3847c75 | 35 | void fct(void); |
6dc2ca62 MD |
36 | void fct(void) |
37 | { | |
47e0f2e2 | 38 | bt_bitfield_write(&glob, unsigned int, 12, 15, 0x12345678); |
6dc2ca62 MD |
39 | } |
40 | ||
41 | /* Test array size, in bytes */ | |
42 | #define TEST_LEN 128 | |
43 | #define NR_TESTS 10 | |
6e654c49 MD |
44 | #define SIGNED_INT_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%X, signed int dest, varying read unit size" |
45 | #define SIGNED_INT_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%X, signed int source, varying write unit size" | |
46 | #define SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, signed long long dest, varying read unit size" | |
47 | #define SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, signed long long source, varying write unit size" | |
48 | #define UNSIGNED_INT_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%X, unsigned int dest, varying read unit size" | |
49 | #define UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%X, unsigned int source, varying write unit size" | |
50 | #define UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, unsigned long long dest, varying read unit size" | |
51 | #define UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR "Writing and reading back 0x%llX, unsigned long long source, varying write unit size" | |
c4232b91 SM |
52 | #define DIAG_FMT_STR(val_type_fmt) "Failed reading value written \"%s\"-wise, with start=%i" \ |
53 | " and length=%i. Read 0x" val_type_fmt | |
6dc2ca62 | 54 | |
6e654c49 MD |
55 | static |
56 | unsigned int fls_u64(uint64_t x) | |
6dc2ca62 | 57 | { |
6e654c49 | 58 | unsigned int r = 64; |
6dc2ca62 | 59 | |
6e654c49 MD |
60 | if (!x) |
61 | return 0; | |
6dc2ca62 | 62 | |
6e654c49 MD |
63 | if (!(x & 0xFFFFFFFF00000000ULL)) { |
64 | x <<= 32; | |
65 | r -= 32; | |
66 | } | |
67 | if (!(x & 0xFFFF000000000000ULL)) { | |
68 | x <<= 16; | |
69 | r -= 16; | |
70 | } | |
71 | if (!(x & 0xFF00000000000000ULL)) { | |
72 | x <<= 8; | |
73 | r -= 8; | |
74 | } | |
75 | if (!(x & 0xF000000000000000ULL)) { | |
76 | x <<= 4; | |
77 | r -= 4; | |
78 | } | |
79 | if (!(x & 0xC000000000000000ULL)) { | |
80 | x <<= 2; | |
81 | r -= 2; | |
82 | } | |
83 | if (!(x & 0x8000000000000000ULL)) { | |
84 | x <<= 1; | |
85 | r -= 1; | |
86 | } | |
87 | return r; | |
6dc2ca62 MD |
88 | } |
89 | ||
6e654c49 MD |
90 | static |
91 | unsigned int fls_u32(uint32_t x) | |
6dc2ca62 | 92 | { |
6e654c49 | 93 | unsigned int r = 32; |
6dc2ca62 MD |
94 | |
95 | if (!x) | |
96 | return 0; | |
97 | if (!(x & 0xFFFF0000U)) { | |
98 | x <<= 16; | |
99 | r -= 16; | |
100 | } | |
101 | if (!(x & 0xFF000000U)) { | |
102 | x <<= 8; | |
103 | r -= 8; | |
104 | } | |
105 | if (!(x & 0xF0000000U)) { | |
106 | x <<= 4; | |
107 | r -= 4; | |
108 | } | |
109 | if (!(x & 0xC0000000U)) { | |
110 | x <<= 2; | |
111 | r -= 2; | |
112 | } | |
113 | if (!(x & 0x80000000U)) { | |
114 | x <<= 1; | |
115 | r -= 1; | |
116 | } | |
117 | return r; | |
118 | } | |
119 | ||
47e0f2e2 MD |
120 | #define print_byte_array(c, len) \ |
121 | do { \ | |
122 | unsigned long i; \ | |
123 | \ | |
124 | for (i = 0; i < (len); i++) { \ | |
125 | printf("0x%X", (c)[i]); \ | |
126 | if (i != (len) - 1) \ | |
127 | printf(" "); \ | |
128 | } \ | |
129 | printf("\n"); \ | |
130 | } while (0) | |
131 | ||
132 | #define init_byte_array(c, len, val) \ | |
133 | do { \ | |
134 | unsigned long i; \ | |
135 | \ | |
136 | for (i = 0; i < (len); i++) \ | |
137 | (c)[i] = (val); \ | |
138 | } while (0) | |
6dc2ca62 | 139 | |
c4232b91 SM |
140 | #define check_result(ref, val, buffer, typename, start, len, \ |
141 | desc_fmt_str, val_type_fmt) \ | |
142 | ({ \ | |
143 | if ((val) != (ref)) { \ | |
144 | fail(desc_fmt_str, ref); \ | |
145 | diag(DIAG_FMT_STR(val_type_fmt), #typename, start, len, val); \ | |
146 | printf("# "); \ | |
147 | print_byte_array(buffer, TEST_LEN); \ | |
148 | } \ | |
149 | (val) != (ref); \ | |
9e8e57d0 JG |
150 | }) |
151 | ||
f3847c75 | 152 | static |
6e654c49 | 153 | void run_test_unsigned_write(unsigned int src_ui, unsigned long long src_ull) |
6dc2ca62 | 154 | { |
6e654c49 | 155 | unsigned int nrbits_ui, nrbits_ull; |
6dc2ca62 MD |
156 | union { |
157 | unsigned char c[TEST_LEN]; | |
158 | unsigned short s[TEST_LEN/sizeof(unsigned short)]; | |
159 | unsigned int i[TEST_LEN/sizeof(unsigned int)]; | |
160 | unsigned long l[TEST_LEN/sizeof(unsigned long)]; | |
161 | unsigned long long ll[TEST_LEN/sizeof(unsigned long long)]; | |
162 | } target; | |
380d60b1 | 163 | unsigned long long readval; |
6dc2ca62 | 164 | unsigned int s, l; |
6dc2ca62 | 165 | |
3f8d247c | 166 | /* The number of bits needed to represent 0 is 0. */ |
6e654c49 | 167 | nrbits_ui = fls_u32(src_ui); |
6dc2ca62 | 168 | |
6e654c49 | 169 | /* Write from unsigned integer src input. */ |
6dc2ca62 | 170 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { |
3f8d247c | 171 | for (l = nrbits_ui; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6dc2ca62 | 172 | init_byte_array(target.c, TEST_LEN, 0xFF); |
6e654c49 | 173 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
47e0f2e2 | 174 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 | 175 | if (check_result(src_ui, readval, target.c, unsigned char, |
c4232b91 SM |
176 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR, |
177 | "%llX")) { | |
9e8e57d0 | 178 | return; |
6dc2ca62 MD |
179 | } |
180 | ||
181 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 182 | bt_bitfield_write(target.s, unsigned short, s, l, src_ui); |
47e0f2e2 | 183 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 | 184 | if (check_result(src_ui, readval, target.c, unsigned short, |
c4232b91 SM |
185 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR, |
186 | "%llX")) { | |
9e8e57d0 | 187 | return; |
6dc2ca62 MD |
188 | } |
189 | ||
190 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 191 | bt_bitfield_write(target.i, unsigned int, s, l, src_ui); |
47e0f2e2 | 192 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 | 193 | if (check_result(src_ui, readval, target.c, unsigned int, |
c4232b91 SM |
194 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR, |
195 | "%llX")) { | |
9e8e57d0 | 196 | return; |
6dc2ca62 MD |
197 | } |
198 | ||
199 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 200 | bt_bitfield_write(target.l, unsigned long, s, l, src_ui); |
47e0f2e2 | 201 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 | 202 | if (check_result(src_ui, readval, target.c, unsigned long, |
c4232b91 SM |
203 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR, |
204 | "%llX")) { | |
9e8e57d0 | 205 | return; |
6dc2ca62 MD |
206 | } |
207 | ||
208 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 209 | bt_bitfield_write(target.ll, unsigned long long, s, l, src_ui); |
47e0f2e2 | 210 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 | 211 | if (check_result(src_ui, readval, target.c, unsigned long long, |
c4232b91 SM |
212 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR, |
213 | "%llX")) { | |
9e8e57d0 | 214 | return; |
6dc2ca62 MD |
215 | } |
216 | } | |
217 | } | |
6e654c49 MD |
218 | pass(UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR, src_ui); |
219 | ||
3f8d247c | 220 | /* The number of bits needed to represent 0 is 0. */ |
6e654c49 MD |
221 | nrbits_ull = fls_u64(src_ull); |
222 | ||
223 | /* Write from unsigned long long src input. */ | |
224 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 225 | for (l = nrbits_ull; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
226 | init_byte_array(target.c, TEST_LEN, 0xFF); |
227 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); | |
228 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
229 | if (check_result(src_ull, readval, target.c, unsigned char, | |
c4232b91 SM |
230 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, |
231 | "%llX")) { | |
6e654c49 MD |
232 | return; |
233 | } | |
9e8e57d0 | 234 | |
6e654c49 MD |
235 | init_byte_array(target.c, TEST_LEN, 0xFF); |
236 | bt_bitfield_write(target.s, unsigned short, s, l, src_ull); | |
237 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
238 | if (check_result(src_ull, readval, target.c, unsigned short, | |
c4232b91 SM |
239 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, |
240 | "%llX")) { | |
6e654c49 MD |
241 | return; |
242 | } | |
243 | ||
244 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
245 | bt_bitfield_write(target.i, unsigned int, s, l, src_ull); | |
246 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
247 | if (check_result(src_ull, readval, target.c, unsigned int, | |
c4232b91 SM |
248 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, |
249 | "%llX")) { | |
6e654c49 MD |
250 | return; |
251 | } | |
252 | ||
253 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
254 | bt_bitfield_write(target.l, unsigned long, s, l, src_ull); | |
255 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
256 | if (check_result(src_ull, readval, target.c, unsigned long, | |
c4232b91 SM |
257 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, |
258 | "%llX")) { | |
6e654c49 MD |
259 | return; |
260 | } | |
261 | ||
262 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
263 | bt_bitfield_write(target.ll, unsigned long long, s, l, src_ull); | |
264 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
265 | if (check_result(src_ull, readval, target.c, unsigned long long, | |
c4232b91 SM |
266 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, |
267 | "%llX")) { | |
6e654c49 MD |
268 | return; |
269 | } | |
270 | } | |
271 | } | |
272 | pass(UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, src_ull); | |
6dc2ca62 MD |
273 | } |
274 | ||
f3847c75 | 275 | static |
6e654c49 | 276 | void run_test_unsigned_read(unsigned int src_ui, unsigned long long src_ull) |
6dc2ca62 | 277 | { |
6e654c49 MD |
278 | unsigned int nrbits_ui, nrbits_ull, readval_ui; |
279 | union { | |
280 | unsigned char c[TEST_LEN]; | |
281 | unsigned short s[TEST_LEN/sizeof(unsigned short)]; | |
282 | unsigned int i[TEST_LEN/sizeof(unsigned int)]; | |
283 | unsigned long l[TEST_LEN/sizeof(unsigned long)]; | |
284 | unsigned long long ll[TEST_LEN/sizeof(unsigned long long)]; | |
285 | } target; | |
286 | unsigned long long readval_ull; | |
287 | unsigned int s, l; | |
288 | ||
3f8d247c | 289 | /* The number of bits needed to represent 0 is 0. */ |
6e654c49 MD |
290 | nrbits_ui = fls_u32(src_ui); |
291 | ||
292 | /* Read to unsigned integer readval output. */ | |
293 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 294 | for (l = nrbits_ui; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
295 | init_byte_array(target.c, TEST_LEN, 0xFF); |
296 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); | |
297 | bt_bitfield_read(target.c, unsigned char, s, l, &readval_ui); | |
298 | if (check_result(src_ui, readval_ui, target.c, unsigned char, | |
c4232b91 SM |
299 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR, |
300 | "%X")) { | |
6e654c49 MD |
301 | return; |
302 | } | |
303 | ||
304 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
305 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
306 | bt_bitfield_read(target.s, unsigned short, s, l, &readval_ui); | |
6e654c49 | 307 | if (check_result(src_ui, readval_ui, target.c, unsigned short, |
c4232b91 SM |
308 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR, |
309 | "%X")) { | |
6e654c49 MD |
310 | return; |
311 | } | |
312 | ||
313 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
314 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
315 | bt_bitfield_read(target.i, unsigned int, s, l, &readval_ui); | |
6e654c49 | 316 | if (check_result(src_ui, readval_ui, target.c, unsigned int, |
c4232b91 SM |
317 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR, |
318 | "%X")) { | |
6e654c49 MD |
319 | return; |
320 | } | |
321 | ||
322 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
323 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
324 | bt_bitfield_read(target.l, unsigned long, s, l, &readval_ui); | |
6e654c49 | 325 | if (check_result(src_ui, readval_ui, target.c, unsigned long, |
c4232b91 SM |
326 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR, |
327 | "%X")) { | |
6e654c49 MD |
328 | return; |
329 | } | |
330 | ||
331 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
332 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
333 | bt_bitfield_read(target.ll, unsigned long long, s, l, &readval_ui); | |
6e654c49 | 334 | if (check_result(src_ui, readval_ui, target.c, unsigned long long, |
c4232b91 SM |
335 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR, |
336 | "%X")) { | |
6e654c49 MD |
337 | return; |
338 | } | |
339 | } | |
340 | } | |
341 | pass(UNSIGNED_INT_READ_TEST_DESC_FMT_STR, src_ui); | |
342 | ||
3f8d247c | 343 | /* The number of bits needed to represent 0 is 0. */ |
6e654c49 MD |
344 | nrbits_ull = fls_u64(src_ull); |
345 | ||
346 | /* Read to unsigned long long readval output. */ | |
347 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 348 | for (l = nrbits_ull; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
349 | init_byte_array(target.c, TEST_LEN, 0xFF); |
350 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); | |
351 | bt_bitfield_read(target.c, unsigned char, s, l, &readval_ull); | |
352 | if (check_result(src_ull, readval_ull, target.c, unsigned char, | |
c4232b91 SM |
353 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, |
354 | "%llX")) { | |
6e654c49 MD |
355 | return; |
356 | } | |
357 | ||
358 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
359 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); |
360 | bt_bitfield_read(target.s, unsigned short, s, l, &readval_ull); | |
6e654c49 | 361 | if (check_result(src_ull, readval_ull, target.c, unsigned short, |
c4232b91 SM |
362 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, |
363 | "%llX")) { | |
6e654c49 MD |
364 | return; |
365 | } | |
366 | ||
367 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
368 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); |
369 | bt_bitfield_read(target.i, unsigned int, s, l, &readval_ull); | |
6e654c49 | 370 | if (check_result(src_ull, readval_ull, target.c, unsigned int, |
c4232b91 SM |
371 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, |
372 | "%llX")) { | |
6e654c49 MD |
373 | return; |
374 | } | |
375 | ||
376 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
377 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); |
378 | bt_bitfield_read(target.l, unsigned long, s, l, &readval_ull); | |
6e654c49 | 379 | if (check_result(src_ull, readval_ull, target.c, unsigned long, |
c4232b91 SM |
380 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, |
381 | "%llX")) { | |
6e654c49 MD |
382 | return; |
383 | } | |
384 | ||
385 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
386 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); |
387 | bt_bitfield_read(target.ll, unsigned long long, s, l, &readval_ull); | |
6e654c49 | 388 | if (check_result(src_ull, readval_ull, target.c, unsigned long long, |
c4232b91 SM |
389 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, |
390 | "%llX")) { | |
6e654c49 MD |
391 | return; |
392 | } | |
393 | } | |
394 | } | |
395 | pass(UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, src_ull); | |
396 | } | |
397 | ||
f3847c75 | 398 | static |
6e654c49 MD |
399 | void run_test_unsigned(unsigned int src_ui, unsigned long long src_ull) |
400 | { | |
401 | run_test_unsigned_write(src_ui, src_ull); | |
402 | run_test_unsigned_read(src_ui, src_ull); | |
403 | } | |
404 | ||
f3847c75 | 405 | static |
6e654c49 MD |
406 | void run_test_signed_write(int src_i, long long src_ll) |
407 | { | |
e1b74ab3 | 408 | unsigned int nrbits_i, nrbits_ll; |
6dc2ca62 | 409 | union { |
47e0f2e2 | 410 | signed char c[TEST_LEN]; |
6dc2ca62 MD |
411 | short s[TEST_LEN/sizeof(short)]; |
412 | int i[TEST_LEN/sizeof(int)]; | |
413 | long l[TEST_LEN/sizeof(long)]; | |
414 | long long ll[TEST_LEN/sizeof(long long)]; | |
415 | } target; | |
380d60b1 | 416 | long long readval; |
6dc2ca62 | 417 | unsigned int s, l; |
6dc2ca62 | 418 | |
f4b1d95e MD |
419 | if (!src_i) |
420 | nrbits_i = 0; /* The number of bits needed to represent 0 is 0. */ | |
421 | else if (src_i & 0x80000000U) | |
6e654c49 | 422 | nrbits_i = fls_u32(~src_i) + 1; /* Find least significant bit conveying sign */ |
6dc2ca62 | 423 | else |
6e654c49 | 424 | nrbits_i = fls_u32(src_i) + 1; /* Keep sign at 0 */ |
6dc2ca62 | 425 | |
6e654c49 | 426 | /* Write from signed integer src input. */ |
9e8e57d0 | 427 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { |
3f8d247c | 428 | for (l = nrbits_i; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6dc2ca62 | 429 | init_byte_array(target.c, TEST_LEN, 0x0); |
6e654c49 | 430 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
47e0f2e2 | 431 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 | 432 | if (check_result(src_i, readval, target.c, signed char, |
c4232b91 SM |
433 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR, |
434 | "%llX")) { | |
9e8e57d0 | 435 | return; |
6dc2ca62 MD |
436 | } |
437 | ||
438 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 439 | bt_bitfield_write(target.s, short, s, l, src_i); |
47e0f2e2 | 440 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 | 441 | if (check_result(src_i, readval, target.c, short, |
c4232b91 SM |
442 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR, |
443 | "%llX")) { | |
9e8e57d0 | 444 | return; |
6dc2ca62 MD |
445 | } |
446 | ||
447 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 448 | bt_bitfield_write(target.i, int, s, l, src_i); |
47e0f2e2 | 449 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 | 450 | if (check_result(src_i, readval, target.c, int, |
c4232b91 SM |
451 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR, |
452 | "%llX")) { | |
9e8e57d0 | 453 | return; |
6dc2ca62 MD |
454 | } |
455 | ||
456 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 457 | bt_bitfield_write(target.l, long, s, l, src_i); |
47e0f2e2 | 458 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 | 459 | if (check_result(src_i, readval, target.c, long, |
c4232b91 SM |
460 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR, |
461 | "%llX")) { | |
9e8e57d0 | 462 | return; |
6dc2ca62 MD |
463 | } |
464 | ||
465 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 466 | bt_bitfield_write(target.ll, long long, s, l, src_i); |
47e0f2e2 | 467 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 | 468 | if (check_result(src_i, readval, target.c, long long, |
c4232b91 SM |
469 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR, |
470 | "%llX")) { | |
9e8e57d0 | 471 | return; |
6dc2ca62 MD |
472 | } |
473 | } | |
474 | } | |
6e654c49 MD |
475 | pass(SIGNED_INT_WRITE_TEST_DESC_FMT_STR, src_i); |
476 | ||
f4b1d95e MD |
477 | if (!src_ll) |
478 | nrbits_ll = 0; /* The number of bits needed to represent 0 is 0. */ | |
479 | else if (src_ll & 0x8000000000000000ULL) | |
6e654c49 MD |
480 | nrbits_ll = fls_u64(~src_ll) + 1; /* Find least significant bit conveying sign */ |
481 | else | |
482 | nrbits_ll = fls_u64(src_ll) + 1; /* Keep sign at 0 */ | |
483 | ||
484 | /* Write from signed long long src input. */ | |
485 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 486 | for (l = nrbits_ll; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
487 | init_byte_array(target.c, TEST_LEN, 0x0); |
488 | bt_bitfield_write(target.c, signed char, s, l, src_ll); | |
489 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
490 | if (check_result(src_ll, readval, target.c, signed char, | |
c4232b91 SM |
491 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, |
492 | "%llX")) { | |
6e654c49 MD |
493 | return; |
494 | } | |
495 | ||
496 | init_byte_array(target.c, TEST_LEN, 0x0); | |
497 | bt_bitfield_write(target.s, short, s, l, src_ll); | |
498 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
499 | if (check_result(src_ll, readval, target.c, short, | |
c4232b91 SM |
500 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, |
501 | "%llX")) { | |
6e654c49 MD |
502 | return; |
503 | } | |
504 | ||
505 | init_byte_array(target.c, TEST_LEN, 0x0); | |
506 | bt_bitfield_write(target.i, int, s, l, src_ll); | |
507 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
508 | if (check_result(src_ll, readval, target.c, int, | |
c4232b91 SM |
509 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, |
510 | "%llX")) { | |
6e654c49 MD |
511 | return; |
512 | } | |
9e8e57d0 | 513 | |
6e654c49 MD |
514 | init_byte_array(target.c, TEST_LEN, 0x0); |
515 | bt_bitfield_write(target.l, long, s, l, src_ll); | |
516 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
517 | if (check_result(src_ll, readval, target.c, long, | |
c4232b91 SM |
518 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, |
519 | "%llX")) { | |
6e654c49 MD |
520 | return; |
521 | } | |
522 | ||
523 | init_byte_array(target.c, TEST_LEN, 0x0); | |
524 | bt_bitfield_write(target.ll, long long, s, l, src_ll); | |
525 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
526 | if (check_result(src_ll, readval, target.c, long long, | |
c4232b91 SM |
527 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, |
528 | "%llX")) { | |
6e654c49 MD |
529 | return; |
530 | } | |
531 | } | |
532 | } | |
533 | pass(SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, src_ll); | |
6dc2ca62 MD |
534 | } |
535 | ||
f3847c75 | 536 | static |
6e654c49 | 537 | void run_test_signed_read(int src_i, long long src_ll) |
6dc2ca62 | 538 | { |
e1b74ab3 MD |
539 | unsigned int nrbits_i, nrbits_ll; |
540 | int readval_i; | |
6e654c49 MD |
541 | union { |
542 | unsigned char c[TEST_LEN]; | |
543 | unsigned short s[TEST_LEN/sizeof(unsigned short)]; | |
544 | unsigned int i[TEST_LEN/sizeof(unsigned int)]; | |
545 | unsigned long l[TEST_LEN/sizeof(unsigned long)]; | |
546 | unsigned long long ll[TEST_LEN/sizeof(unsigned long long)]; | |
547 | } target; | |
548 | long long readval_ll; | |
549 | unsigned int s, l; | |
6dc2ca62 | 550 | |
f4b1d95e MD |
551 | if (!src_i) |
552 | nrbits_i = 0; /* The number of bits needed to represent 0 is 0. */ | |
553 | else if (src_i & 0x80000000U) | |
6e654c49 MD |
554 | nrbits_i = fls_u32(~src_i) + 1; /* Find least significant bit conveying sign */ |
555 | else | |
556 | nrbits_i = fls_u32(src_i) + 1; /* Keep sign at 0 */ | |
6dc2ca62 | 557 | |
6e654c49 MD |
558 | /* Read to signed integer readval output. */ |
559 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 560 | for (l = nrbits_i; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
561 | init_byte_array(target.c, TEST_LEN, 0xFF); |
562 | bt_bitfield_write(target.c, signed char, s, l, src_i); | |
563 | bt_bitfield_read(target.c, signed char, s, l, &readval_i); | |
564 | if (check_result(src_i, readval_i, target.c, signed char, | |
c4232b91 SM |
565 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR, |
566 | "%X")) { | |
6e654c49 MD |
567 | return; |
568 | } | |
9e8e57d0 | 569 | |
6e654c49 | 570 | init_byte_array(target.c, TEST_LEN, 0xFF); |
e0412a92 MD |
571 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
572 | bt_bitfield_read(target.s, short, s, l, &readval_i); | |
6e654c49 | 573 | if (check_result(src_i, readval_i, target.c, short, |
c4232b91 SM |
574 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR, |
575 | "%X")) { | |
6e654c49 MD |
576 | return; |
577 | } | |
9e8e57d0 | 578 | |
6e654c49 | 579 | init_byte_array(target.c, TEST_LEN, 0xFF); |
e0412a92 MD |
580 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
581 | bt_bitfield_read(target.i, int, s, l, &readval_i); | |
6e654c49 | 582 | if (check_result(src_i, readval_i, target.c, int, |
c4232b91 SM |
583 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR, |
584 | "%X")) { | |
6e654c49 MD |
585 | return; |
586 | } | |
9e8e57d0 | 587 | |
6e654c49 | 588 | init_byte_array(target.c, TEST_LEN, 0xFF); |
e0412a92 MD |
589 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
590 | bt_bitfield_read(target.l, long, s, l, &readval_i); | |
6e654c49 | 591 | if (check_result(src_i, readval_i, target.c, long, |
c4232b91 SM |
592 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR, |
593 | "%X")) { | |
6e654c49 MD |
594 | return; |
595 | } | |
9e8e57d0 | 596 | |
6e654c49 | 597 | init_byte_array(target.c, TEST_LEN, 0xFF); |
e0412a92 MD |
598 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
599 | bt_bitfield_read(target.ll, long long, s, l, &readval_i); | |
6e654c49 | 600 | if (check_result(src_i, readval_i, target.c, long long, |
c4232b91 SM |
601 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR, |
602 | "%X")) { | |
6e654c49 MD |
603 | return; |
604 | } | |
605 | } | |
606 | } | |
607 | pass(SIGNED_INT_READ_TEST_DESC_FMT_STR, src_i); | |
608 | ||
f4b1d95e MD |
609 | if (!src_ll) |
610 | nrbits_ll = 0; /* The number of bits needed to represent 0 is 0. */ | |
6e654c49 MD |
611 | if (src_ll & 0x8000000000000000ULL) |
612 | nrbits_ll = fls_u64(~src_ll) + 1; /* Find least significant bit conveying sign */ | |
613 | else | |
614 | nrbits_ll = fls_u64(src_ll) + 1; /* Keep sign at 0 */ | |
615 | ||
616 | /* Read to signed long long readval output. */ | |
617 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 618 | for (l = nrbits_ll; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
619 | init_byte_array(target.c, TEST_LEN, 0xFF); |
620 | bt_bitfield_write(target.c, signed char, s, l, src_ll); | |
621 | bt_bitfield_read(target.c, signed char, s, l, &readval_ll); | |
622 | if (check_result(src_ll, readval_ll, target.c, signed char, | |
c4232b91 SM |
623 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, |
624 | "%llX")) { | |
6e654c49 MD |
625 | return; |
626 | } | |
627 | ||
628 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
629 | bt_bitfield_write(target.c, signed char, s, l, src_ll); |
630 | bt_bitfield_read(target.s, short, s, l, &readval_ll); | |
6e654c49 | 631 | if (check_result(src_ll, readval_ll, target.c, short, |
c4232b91 SM |
632 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, |
633 | "%llX")) { | |
6e654c49 MD |
634 | return; |
635 | } | |
636 | ||
637 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
638 | bt_bitfield_write(target.c, signed char, s, l, src_ll); |
639 | bt_bitfield_read(target.i, int, s, l, &readval_ll); | |
6e654c49 | 640 | if (check_result(src_ll, readval_ll, target.c, int, |
c4232b91 SM |
641 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, |
642 | "%llX")) { | |
6e654c49 MD |
643 | return; |
644 | } | |
645 | ||
646 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
647 | bt_bitfield_write(target.c, signed char, s, l, src_ll); |
648 | bt_bitfield_read(target.l, long, s, l, &readval_ll); | |
6e654c49 | 649 | if (check_result(src_ll, readval_ll, target.c, long, |
c4232b91 SM |
650 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, |
651 | "%llX")) { | |
6e654c49 MD |
652 | return; |
653 | } | |
654 | ||
655 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
656 | bt_bitfield_write(target.c, signed char, s, l, src_ll); |
657 | bt_bitfield_read(target.ll, long long, s, l, &readval_ll); | |
6e654c49 | 658 | if (check_result(src_ll, readval_ll, target.c, long long, |
c4232b91 SM |
659 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, |
660 | "%llX")) { | |
6e654c49 MD |
661 | return; |
662 | } | |
663 | } | |
664 | } | |
665 | pass(SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, src_ll); | |
666 | } | |
667 | ||
f3847c75 | 668 | static |
6e654c49 MD |
669 | void run_test_signed(int src_i, long long src_ll) |
670 | { | |
671 | run_test_signed_write(src_i, src_ll); | |
672 | run_test_signed_read(src_i, src_ll); | |
673 | } | |
674 | ||
f3847c75 | 675 | static |
6e654c49 MD |
676 | void run_test(void) |
677 | { | |
678 | int i; | |
679 | ||
680 | plan_tests(NR_TESTS * 8 + 24); | |
681 | ||
682 | srand(time(NULL)); | |
683 | ||
684 | run_test_unsigned(0, 0); | |
685 | run_test_signed(0, 0); | |
686 | run_test_unsigned(1, 1); | |
687 | run_test_unsigned(~0U, ~0ULL); | |
688 | run_test_signed(-1U, -1ULL); | |
689 | run_test_signed(0x80000000U, 0x8000000000000000ULL); | |
6dc2ca62 MD |
690 | |
691 | for (i = 0; i < NR_TESTS; i++) { | |
6e654c49 MD |
692 | unsigned int src_ui = rand(); |
693 | unsigned long long src_ull = ((unsigned long long) (unsigned int) rand() << 32) | | |
694 | (unsigned long long) (unsigned int) rand(); | |
695 | ||
696 | run_test_unsigned(src_ui, src_ull); | |
697 | run_test_signed((int) src_ui, (long long) src_ull); | |
6dc2ca62 | 698 | } |
6dc2ca62 MD |
699 | } |
700 | ||
9e8e57d0 JG |
701 | static |
702 | int print_encodings(unsigned long src, unsigned int shift, unsigned int len) | |
6dc2ca62 | 703 | { |
6dc2ca62 MD |
704 | union { |
705 | unsigned char c[8]; | |
706 | unsigned short s[4]; | |
707 | unsigned int i[2]; | |
708 | unsigned long l[2]; | |
709 | unsigned long long ll[1]; | |
710 | } target; | |
380d60b1 | 711 | unsigned long long readval; |
6dc2ca62 | 712 | |
9e8e57d0 | 713 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 714 | bt_bitfield_write(target.c, unsigned char, shift, len, src); |
6dc2ca62 MD |
715 | printf("bytewise\n"); |
716 | print_byte_array(target.c, 8); | |
717 | ||
9e8e57d0 | 718 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 719 | bt_bitfield_write(target.s, unsigned short, shift, len, src); |
6dc2ca62 MD |
720 | printf("shortwise\n"); |
721 | print_byte_array(target.c, 8); | |
722 | ||
9e8e57d0 | 723 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 724 | bt_bitfield_write(target.i, unsigned int, shift, len, src); |
6dc2ca62 MD |
725 | printf("intwise\n"); |
726 | print_byte_array(target.c, 8); | |
727 | ||
9e8e57d0 | 728 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 729 | bt_bitfield_write(target.l, unsigned long, shift, len, src); |
6dc2ca62 MD |
730 | printf("longwise\n"); |
731 | print_byte_array(target.c, 8); | |
732 | ||
9e8e57d0 | 733 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 734 | bt_bitfield_write(target.ll, unsigned long long, shift, len, src); |
6dc2ca62 MD |
735 | printf("lluwise\n"); |
736 | print_byte_array(target.c, 8); | |
737 | ||
47e0f2e2 | 738 | bt_bitfield_read(target.c, unsigned char, shift, len, &readval); |
6dc2ca62 | 739 | printf("read: %llX\n", readval); |
9e8e57d0 | 740 | print_byte_array(target.c, 8); |
6dc2ca62 | 741 | |
9e8e57d0 JG |
742 | return 0; |
743 | } | |
744 | ||
745 | int main(int argc, char **argv) | |
746 | { | |
747 | if (argc > 1) { | |
748 | /* Print encodings */ | |
749 | unsigned long src; | |
750 | unsigned int shift, len; | |
751 | ||
752 | src = atoi(argv[1]); | |
753 | if (argc > 2) | |
754 | shift = atoi(argv[2]); | |
755 | else | |
756 | shift = 12; | |
757 | if (argc > 3) | |
758 | len = atoi(argv[3]); | |
759 | else | |
760 | len = 40; | |
761 | return print_encodings(src, shift, len); | |
762 | } | |
6dc2ca62 | 763 | |
9e8e57d0 JG |
764 | /* Run tap-formated tests */ |
765 | run_test(); | |
766 | return exit_status(); | |
6dc2ca62 | 767 | } |