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