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 | |
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 | |
3f8d247c | 164 | /* The number of bits needed to represent 0 is 0. */ |
6e654c49 | 165 | nrbits_ui = fls_u32(src_ui); |
6dc2ca62 | 166 | |
6e654c49 | 167 | /* Write from unsigned integer src input. */ |
6dc2ca62 | 168 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { |
3f8d247c | 169 | for (l = nrbits_ui; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6dc2ca62 | 170 | init_byte_array(target.c, TEST_LEN, 0xFF); |
6e654c49 | 171 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
47e0f2e2 | 172 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 MD |
173 | if (check_result(src_ui, readval, target.c, unsigned char, |
174 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 175 | return; |
6dc2ca62 MD |
176 | } |
177 | ||
178 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 179 | bt_bitfield_write(target.s, unsigned short, s, l, src_ui); |
47e0f2e2 | 180 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 MD |
181 | if (check_result(src_ui, readval, target.c, unsigned short, |
182 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 183 | return; |
6dc2ca62 MD |
184 | } |
185 | ||
186 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 187 | bt_bitfield_write(target.i, unsigned int, s, l, src_ui); |
47e0f2e2 | 188 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 MD |
189 | if (check_result(src_ui, readval, target.c, unsigned int, |
190 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 191 | return; |
6dc2ca62 MD |
192 | } |
193 | ||
194 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 195 | bt_bitfield_write(target.l, unsigned long, s, l, src_ui); |
47e0f2e2 | 196 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 MD |
197 | if (check_result(src_ui, readval, target.c, unsigned long, |
198 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 199 | return; |
6dc2ca62 MD |
200 | } |
201 | ||
202 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
6e654c49 | 203 | bt_bitfield_write(target.ll, unsigned long long, s, l, src_ui); |
47e0f2e2 | 204 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); |
6e654c49 MD |
205 | if (check_result(src_ui, readval, target.c, unsigned long long, |
206 | s, l, UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 207 | return; |
6dc2ca62 MD |
208 | } |
209 | } | |
210 | } | |
6e654c49 MD |
211 | pass(UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR, src_ui); |
212 | ||
3f8d247c | 213 | /* The number of bits needed to represent 0 is 0. */ |
6e654c49 MD |
214 | nrbits_ull = fls_u64(src_ull); |
215 | ||
216 | /* Write from unsigned long long src input. */ | |
217 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 218 | for (l = nrbits_ull; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
219 | init_byte_array(target.c, TEST_LEN, 0xFF); |
220 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); | |
221 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
222 | if (check_result(src_ull, readval, target.c, unsigned char, | |
223 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
224 | return; | |
225 | } | |
9e8e57d0 | 226 | |
6e654c49 MD |
227 | init_byte_array(target.c, TEST_LEN, 0xFF); |
228 | bt_bitfield_write(target.s, unsigned short, s, l, src_ull); | |
229 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
230 | if (check_result(src_ull, readval, target.c, unsigned short, | |
231 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
232 | return; | |
233 | } | |
234 | ||
235 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
236 | bt_bitfield_write(target.i, unsigned int, 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 int, | |
239 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
240 | return; | |
241 | } | |
242 | ||
243 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
244 | bt_bitfield_write(target.l, unsigned long, s, l, src_ull); | |
245 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
246 | if (check_result(src_ull, readval, target.c, unsigned long, | |
247 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
248 | return; | |
249 | } | |
250 | ||
251 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
252 | bt_bitfield_write(target.ll, unsigned long long, s, l, src_ull); | |
253 | bt_bitfield_read(target.c, unsigned char, s, l, &readval); | |
254 | if (check_result(src_ull, readval, target.c, unsigned long long, | |
255 | s, l, UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
256 | return; | |
257 | } | |
258 | } | |
259 | } | |
260 | pass(UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, src_ull); | |
6dc2ca62 MD |
261 | } |
262 | ||
6e654c49 | 263 | void run_test_unsigned_read(unsigned int src_ui, unsigned long long src_ull) |
6dc2ca62 | 264 | { |
6e654c49 MD |
265 | unsigned int nrbits_ui, nrbits_ull, readval_ui; |
266 | union { | |
267 | unsigned char c[TEST_LEN]; | |
268 | unsigned short s[TEST_LEN/sizeof(unsigned short)]; | |
269 | unsigned int i[TEST_LEN/sizeof(unsigned int)]; | |
270 | unsigned long l[TEST_LEN/sizeof(unsigned long)]; | |
271 | unsigned long long ll[TEST_LEN/sizeof(unsigned long long)]; | |
272 | } target; | |
273 | unsigned long long readval_ull; | |
274 | unsigned int s, l; | |
275 | ||
3f8d247c | 276 | /* The number of bits needed to represent 0 is 0. */ |
6e654c49 MD |
277 | nrbits_ui = fls_u32(src_ui); |
278 | ||
279 | /* Read to unsigned integer readval output. */ | |
280 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 281 | for (l = nrbits_ui; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
282 | init_byte_array(target.c, TEST_LEN, 0xFF); |
283 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); | |
284 | bt_bitfield_read(target.c, unsigned char, s, l, &readval_ui); | |
285 | if (check_result(src_ui, readval_ui, target.c, unsigned char, | |
286 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
287 | return; | |
288 | } | |
289 | ||
290 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
291 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
292 | bt_bitfield_read(target.s, unsigned short, s, l, &readval_ui); | |
6e654c49 MD |
293 | if (check_result(src_ui, readval_ui, target.c, unsigned short, |
294 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
295 | return; | |
296 | } | |
297 | ||
298 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
299 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
300 | bt_bitfield_read(target.i, unsigned int, s, l, &readval_ui); | |
6e654c49 MD |
301 | if (check_result(src_ui, readval_ui, target.c, unsigned int, |
302 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
303 | return; | |
304 | } | |
305 | ||
306 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
307 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
308 | bt_bitfield_read(target.l, unsigned long, s, l, &readval_ui); | |
6e654c49 MD |
309 | if (check_result(src_ui, readval_ui, target.c, unsigned long, |
310 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
311 | return; | |
312 | } | |
313 | ||
314 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
315 | bt_bitfield_write(target.c, unsigned char, s, l, src_ui); |
316 | bt_bitfield_read(target.ll, unsigned long long, s, l, &readval_ui); | |
6e654c49 MD |
317 | if (check_result(src_ui, readval_ui, target.c, unsigned long long, |
318 | s, l, UNSIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
319 | return; | |
320 | } | |
321 | } | |
322 | } | |
323 | pass(UNSIGNED_INT_READ_TEST_DESC_FMT_STR, src_ui); | |
324 | ||
3f8d247c | 325 | /* The number of bits needed to represent 0 is 0. */ |
6e654c49 MD |
326 | nrbits_ull = fls_u64(src_ull); |
327 | ||
328 | /* Read to unsigned long long readval output. */ | |
329 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 330 | for (l = nrbits_ull; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
331 | init_byte_array(target.c, TEST_LEN, 0xFF); |
332 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); | |
333 | bt_bitfield_read(target.c, unsigned char, s, l, &readval_ull); | |
334 | if (check_result(src_ull, readval_ull, target.c, unsigned char, | |
335 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
336 | return; | |
337 | } | |
338 | ||
339 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
340 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); |
341 | bt_bitfield_read(target.s, unsigned short, s, l, &readval_ull); | |
6e654c49 MD |
342 | if (check_result(src_ull, readval_ull, target.c, unsigned short, |
343 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
344 | return; | |
345 | } | |
346 | ||
347 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
348 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); |
349 | bt_bitfield_read(target.i, unsigned int, s, l, &readval_ull); | |
6e654c49 MD |
350 | if (check_result(src_ull, readval_ull, target.c, unsigned int, |
351 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
352 | return; | |
353 | } | |
354 | ||
355 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
356 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); |
357 | bt_bitfield_read(target.l, unsigned long, s, l, &readval_ull); | |
6e654c49 MD |
358 | if (check_result(src_ull, readval_ull, target.c, unsigned long, |
359 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
360 | return; | |
361 | } | |
362 | ||
363 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
364 | bt_bitfield_write(target.c, unsigned char, s, l, src_ull); |
365 | bt_bitfield_read(target.ll, unsigned long long, s, l, &readval_ull); | |
6e654c49 MD |
366 | if (check_result(src_ull, readval_ull, target.c, unsigned long long, |
367 | s, l, UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
368 | return; | |
369 | } | |
370 | } | |
371 | } | |
372 | pass(UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, src_ull); | |
373 | } | |
374 | ||
375 | void run_test_unsigned(unsigned int src_ui, unsigned long long src_ull) | |
376 | { | |
377 | run_test_unsigned_write(src_ui, src_ull); | |
378 | run_test_unsigned_read(src_ui, src_ull); | |
379 | } | |
380 | ||
381 | void run_test_signed_write(int src_i, long long src_ll) | |
382 | { | |
e1b74ab3 | 383 | unsigned int nrbits_i, nrbits_ll; |
6dc2ca62 | 384 | union { |
47e0f2e2 | 385 | signed char c[TEST_LEN]; |
6dc2ca62 MD |
386 | short s[TEST_LEN/sizeof(short)]; |
387 | int i[TEST_LEN/sizeof(int)]; | |
388 | long l[TEST_LEN/sizeof(long)]; | |
389 | long long ll[TEST_LEN/sizeof(long long)]; | |
390 | } target; | |
380d60b1 | 391 | long long readval; |
6dc2ca62 | 392 | unsigned int s, l; |
6dc2ca62 | 393 | |
f4b1d95e MD |
394 | if (!src_i) |
395 | nrbits_i = 0; /* The number of bits needed to represent 0 is 0. */ | |
396 | else if (src_i & 0x80000000U) | |
6e654c49 | 397 | nrbits_i = fls_u32(~src_i) + 1; /* Find least significant bit conveying sign */ |
6dc2ca62 | 398 | else |
6e654c49 | 399 | nrbits_i = fls_u32(src_i) + 1; /* Keep sign at 0 */ |
6dc2ca62 | 400 | |
6e654c49 | 401 | /* Write from signed integer src input. */ |
9e8e57d0 | 402 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { |
3f8d247c | 403 | for (l = nrbits_i; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6dc2ca62 | 404 | init_byte_array(target.c, TEST_LEN, 0x0); |
6e654c49 | 405 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
47e0f2e2 | 406 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 MD |
407 | if (check_result(src_i, readval, target.c, signed char, |
408 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 409 | return; |
6dc2ca62 MD |
410 | } |
411 | ||
412 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 413 | bt_bitfield_write(target.s, short, s, l, src_i); |
47e0f2e2 | 414 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 MD |
415 | if (check_result(src_i, readval, target.c, short, |
416 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 417 | return; |
6dc2ca62 MD |
418 | } |
419 | ||
420 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 421 | bt_bitfield_write(target.i, int, s, l, src_i); |
47e0f2e2 | 422 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 MD |
423 | if (check_result(src_i, readval, target.c, int, |
424 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 425 | return; |
6dc2ca62 MD |
426 | } |
427 | ||
428 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 429 | bt_bitfield_write(target.l, long, s, l, src_i); |
47e0f2e2 | 430 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 MD |
431 | if (check_result(src_i, readval, target.c, long, |
432 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 433 | return; |
6dc2ca62 MD |
434 | } |
435 | ||
436 | init_byte_array(target.c, TEST_LEN, 0x0); | |
6e654c49 | 437 | bt_bitfield_write(target.ll, long long, s, l, src_i); |
47e0f2e2 | 438 | bt_bitfield_read(target.c, signed char, s, l, &readval); |
6e654c49 MD |
439 | if (check_result(src_i, readval, target.c, long long, |
440 | s, l, SIGNED_INT_WRITE_TEST_DESC_FMT_STR)) { | |
9e8e57d0 | 441 | return; |
6dc2ca62 MD |
442 | } |
443 | } | |
444 | } | |
6e654c49 MD |
445 | pass(SIGNED_INT_WRITE_TEST_DESC_FMT_STR, src_i); |
446 | ||
f4b1d95e MD |
447 | if (!src_ll) |
448 | nrbits_ll = 0; /* The number of bits needed to represent 0 is 0. */ | |
449 | else if (src_ll & 0x8000000000000000ULL) | |
6e654c49 MD |
450 | nrbits_ll = fls_u64(~src_ll) + 1; /* Find least significant bit conveying sign */ |
451 | else | |
452 | nrbits_ll = fls_u64(src_ll) + 1; /* Keep sign at 0 */ | |
453 | ||
454 | /* Write from signed long long src input. */ | |
455 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 456 | for (l = nrbits_ll; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
457 | init_byte_array(target.c, TEST_LEN, 0x0); |
458 | bt_bitfield_write(target.c, signed char, s, l, src_ll); | |
459 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
460 | if (check_result(src_ll, readval, target.c, signed char, | |
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.s, short, s, l, src_ll); | |
467 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
468 | if (check_result(src_ll, readval, target.c, short, | |
469 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
470 | return; | |
471 | } | |
472 | ||
473 | init_byte_array(target.c, TEST_LEN, 0x0); | |
474 | bt_bitfield_write(target.i, int, s, l, src_ll); | |
475 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
476 | if (check_result(src_ll, readval, target.c, int, | |
477 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
478 | return; | |
479 | } | |
9e8e57d0 | 480 | |
6e654c49 MD |
481 | init_byte_array(target.c, TEST_LEN, 0x0); |
482 | bt_bitfield_write(target.l, 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, | |
485 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
486 | return; | |
487 | } | |
488 | ||
489 | init_byte_array(target.c, TEST_LEN, 0x0); | |
490 | bt_bitfield_write(target.ll, long long, s, l, src_ll); | |
491 | bt_bitfield_read(target.c, signed char, s, l, &readval); | |
492 | if (check_result(src_ll, readval, target.c, long long, | |
493 | s, l, SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR)) { | |
494 | return; | |
495 | } | |
496 | } | |
497 | } | |
498 | pass(SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, src_ll); | |
6dc2ca62 MD |
499 | } |
500 | ||
6e654c49 | 501 | void run_test_signed_read(int src_i, long long src_ll) |
6dc2ca62 | 502 | { |
e1b74ab3 MD |
503 | unsigned int nrbits_i, nrbits_ll; |
504 | int readval_i; | |
6e654c49 MD |
505 | union { |
506 | unsigned char c[TEST_LEN]; | |
507 | unsigned short s[TEST_LEN/sizeof(unsigned short)]; | |
508 | unsigned int i[TEST_LEN/sizeof(unsigned int)]; | |
509 | unsigned long l[TEST_LEN/sizeof(unsigned long)]; | |
510 | unsigned long long ll[TEST_LEN/sizeof(unsigned long long)]; | |
511 | } target; | |
512 | long long readval_ll; | |
513 | unsigned int s, l; | |
6dc2ca62 | 514 | |
f4b1d95e MD |
515 | if (!src_i) |
516 | nrbits_i = 0; /* The number of bits needed to represent 0 is 0. */ | |
517 | else if (src_i & 0x80000000U) | |
6e654c49 MD |
518 | nrbits_i = fls_u32(~src_i) + 1; /* Find least significant bit conveying sign */ |
519 | else | |
520 | nrbits_i = fls_u32(src_i) + 1; /* Keep sign at 0 */ | |
6dc2ca62 | 521 | |
6e654c49 MD |
522 | /* Read to signed integer readval output. */ |
523 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 524 | for (l = nrbits_i; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
525 | init_byte_array(target.c, TEST_LEN, 0xFF); |
526 | bt_bitfield_write(target.c, signed char, s, l, src_i); | |
527 | bt_bitfield_read(target.c, signed char, s, l, &readval_i); | |
528 | if (check_result(src_i, readval_i, target.c, signed char, | |
529 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
530 | return; | |
531 | } | |
9e8e57d0 | 532 | |
6e654c49 | 533 | init_byte_array(target.c, TEST_LEN, 0xFF); |
e0412a92 MD |
534 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
535 | bt_bitfield_read(target.s, short, s, l, &readval_i); | |
6e654c49 MD |
536 | if (check_result(src_i, readval_i, target.c, short, |
537 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
538 | return; | |
539 | } | |
9e8e57d0 | 540 | |
6e654c49 | 541 | init_byte_array(target.c, TEST_LEN, 0xFF); |
e0412a92 MD |
542 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
543 | bt_bitfield_read(target.i, int, s, l, &readval_i); | |
6e654c49 MD |
544 | if (check_result(src_i, readval_i, target.c, int, |
545 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
546 | return; | |
547 | } | |
9e8e57d0 | 548 | |
6e654c49 | 549 | init_byte_array(target.c, TEST_LEN, 0xFF); |
e0412a92 MD |
550 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
551 | bt_bitfield_read(target.l, long, s, l, &readval_i); | |
6e654c49 MD |
552 | if (check_result(src_i, readval_i, target.c, long, |
553 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
554 | return; | |
555 | } | |
9e8e57d0 | 556 | |
6e654c49 | 557 | init_byte_array(target.c, TEST_LEN, 0xFF); |
e0412a92 MD |
558 | bt_bitfield_write(target.c, signed char, s, l, src_i); |
559 | bt_bitfield_read(target.ll, long long, s, l, &readval_i); | |
6e654c49 MD |
560 | if (check_result(src_i, readval_i, target.c, long long, |
561 | s, l, SIGNED_INT_READ_TEST_DESC_FMT_STR)) { | |
562 | return; | |
563 | } | |
564 | } | |
565 | } | |
566 | pass(SIGNED_INT_READ_TEST_DESC_FMT_STR, src_i); | |
567 | ||
f4b1d95e MD |
568 | if (!src_ll) |
569 | nrbits_ll = 0; /* The number of bits needed to represent 0 is 0. */ | |
6e654c49 MD |
570 | if (src_ll & 0x8000000000000000ULL) |
571 | nrbits_ll = fls_u64(~src_ll) + 1; /* Find least significant bit conveying sign */ | |
572 | else | |
573 | nrbits_ll = fls_u64(src_ll) + 1; /* Keep sign at 0 */ | |
574 | ||
575 | /* Read to signed long long readval output. */ | |
576 | for (s = 0; s < CHAR_BIT * TEST_LEN; s++) { | |
3f8d247c | 577 | for (l = nrbits_ll; l <= (CHAR_BIT * TEST_LEN) - s; l++) { |
6e654c49 MD |
578 | init_byte_array(target.c, TEST_LEN, 0xFF); |
579 | bt_bitfield_write(target.c, signed char, s, l, src_ll); | |
580 | bt_bitfield_read(target.c, signed char, s, l, &readval_ll); | |
581 | if (check_result(src_ll, readval_ll, target.c, signed char, | |
582 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
583 | return; | |
584 | } | |
585 | ||
586 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
587 | bt_bitfield_write(target.c, signed char, s, l, src_ll); |
588 | bt_bitfield_read(target.s, short, s, l, &readval_ll); | |
6e654c49 MD |
589 | if (check_result(src_ll, readval_ll, target.c, short, |
590 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
591 | return; | |
592 | } | |
593 | ||
594 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
595 | bt_bitfield_write(target.c, signed char, s, l, src_ll); |
596 | bt_bitfield_read(target.i, int, s, l, &readval_ll); | |
6e654c49 MD |
597 | if (check_result(src_ll, readval_ll, target.c, int, |
598 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
599 | return; | |
600 | } | |
601 | ||
602 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
603 | bt_bitfield_write(target.c, signed char, s, l, src_ll); |
604 | bt_bitfield_read(target.l, long, s, l, &readval_ll); | |
6e654c49 MD |
605 | if (check_result(src_ll, readval_ll, target.c, long, |
606 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
607 | return; | |
608 | } | |
609 | ||
610 | init_byte_array(target.c, TEST_LEN, 0xFF); | |
e0412a92 MD |
611 | bt_bitfield_write(target.c, signed char, s, l, src_ll); |
612 | bt_bitfield_read(target.ll, long long, s, l, &readval_ll); | |
6e654c49 MD |
613 | if (check_result(src_ll, readval_ll, target.c, long long, |
614 | s, l, SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR)) { | |
615 | return; | |
616 | } | |
617 | } | |
618 | } | |
619 | pass(SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, src_ll); | |
620 | } | |
621 | ||
622 | void run_test_signed(int src_i, long long src_ll) | |
623 | { | |
624 | run_test_signed_write(src_i, src_ll); | |
625 | run_test_signed_read(src_i, src_ll); | |
626 | } | |
627 | ||
628 | void run_test(void) | |
629 | { | |
630 | int i; | |
631 | ||
632 | plan_tests(NR_TESTS * 8 + 24); | |
633 | ||
634 | srand(time(NULL)); | |
635 | ||
636 | run_test_unsigned(0, 0); | |
637 | run_test_signed(0, 0); | |
638 | run_test_unsigned(1, 1); | |
639 | run_test_unsigned(~0U, ~0ULL); | |
640 | run_test_signed(-1U, -1ULL); | |
641 | run_test_signed(0x80000000U, 0x8000000000000000ULL); | |
6dc2ca62 MD |
642 | |
643 | for (i = 0; i < NR_TESTS; i++) { | |
6e654c49 MD |
644 | unsigned int src_ui = rand(); |
645 | unsigned long long src_ull = ((unsigned long long) (unsigned int) rand() << 32) | | |
646 | (unsigned long long) (unsigned int) rand(); | |
647 | ||
648 | run_test_unsigned(src_ui, src_ull); | |
649 | run_test_signed((int) src_ui, (long long) src_ull); | |
6dc2ca62 | 650 | } |
6dc2ca62 MD |
651 | } |
652 | ||
9e8e57d0 JG |
653 | static |
654 | int print_encodings(unsigned long src, unsigned int shift, unsigned int len) | |
6dc2ca62 | 655 | { |
6dc2ca62 MD |
656 | union { |
657 | unsigned char c[8]; | |
658 | unsigned short s[4]; | |
659 | unsigned int i[2]; | |
660 | unsigned long l[2]; | |
661 | unsigned long long ll[1]; | |
662 | } target; | |
380d60b1 | 663 | unsigned long long readval; |
6dc2ca62 | 664 | |
9e8e57d0 | 665 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 666 | bt_bitfield_write(target.c, unsigned char, shift, len, src); |
6dc2ca62 MD |
667 | printf("bytewise\n"); |
668 | print_byte_array(target.c, 8); | |
669 | ||
9e8e57d0 | 670 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 671 | bt_bitfield_write(target.s, unsigned short, shift, len, src); |
6dc2ca62 MD |
672 | printf("shortwise\n"); |
673 | print_byte_array(target.c, 8); | |
674 | ||
9e8e57d0 | 675 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 676 | bt_bitfield_write(target.i, unsigned int, shift, len, src); |
6dc2ca62 MD |
677 | printf("intwise\n"); |
678 | print_byte_array(target.c, 8); | |
679 | ||
9e8e57d0 | 680 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 681 | bt_bitfield_write(target.l, unsigned long, shift, len, src); |
6dc2ca62 MD |
682 | printf("longwise\n"); |
683 | print_byte_array(target.c, 8); | |
684 | ||
9e8e57d0 | 685 | init_byte_array(target.c, 8, 0xFF); |
47e0f2e2 | 686 | bt_bitfield_write(target.ll, unsigned long long, shift, len, src); |
6dc2ca62 MD |
687 | printf("lluwise\n"); |
688 | print_byte_array(target.c, 8); | |
689 | ||
47e0f2e2 | 690 | bt_bitfield_read(target.c, unsigned char, shift, len, &readval); |
6dc2ca62 | 691 | printf("read: %llX\n", readval); |
9e8e57d0 | 692 | print_byte_array(target.c, 8); |
6dc2ca62 | 693 | |
9e8e57d0 JG |
694 | return 0; |
695 | } | |
696 | ||
697 | int main(int argc, char **argv) | |
698 | { | |
699 | if (argc > 1) { | |
700 | /* Print encodings */ | |
701 | unsigned long src; | |
702 | unsigned int shift, len; | |
703 | ||
704 | src = atoi(argv[1]); | |
705 | if (argc > 2) | |
706 | shift = atoi(argv[2]); | |
707 | else | |
708 | shift = 12; | |
709 | if (argc > 3) | |
710 | len = atoi(argv[3]); | |
711 | else | |
712 | len = 40; | |
713 | return print_encodings(src, shift, len); | |
714 | } | |
6dc2ca62 | 715 | |
9e8e57d0 JG |
716 | /* Run tap-formated tests */ |
717 | run_test(); | |
718 | return exit_status(); | |
6dc2ca62 | 719 | } |