Commit | Line | Data |
---|---|---|
07dfc1d0 MD |
1 | /* |
2 | * lttng-filter-specialize.c | |
3 | * | |
4 | * LTTng modules filter code specializer. | |
5 | * | |
bbf3aef5 | 6 | * Copyright (C) 2010-2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
07dfc1d0 | 7 | * |
bbf3aef5 MD |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
07dfc1d0 | 14 | * |
bbf3aef5 MD |
15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
07dfc1d0 | 17 | * |
bbf3aef5 MD |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
21 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
24 | * SOFTWARE. | |
07dfc1d0 MD |
25 | */ |
26 | ||
241ae9a8 | 27 | #include <lttng-filter.h> |
07dfc1d0 MD |
28 | |
29 | int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode) | |
30 | { | |
31 | void *pc, *next_pc, *start_pc; | |
32 | int ret = -EINVAL; | |
33 | struct vstack _stack; | |
34 | struct vstack *stack = &_stack; | |
35 | ||
36 | vstack_init(stack); | |
37 | ||
38 | start_pc = &bytecode->data[0]; | |
39 | for (pc = next_pc = start_pc; pc - start_pc < bytecode->len; | |
40 | pc = next_pc) { | |
41 | switch (*(filter_opcode_t *) pc) { | |
42 | case FILTER_OP_UNKNOWN: | |
43 | default: | |
44 | printk(KERN_WARNING "unknown bytecode op %u\n", | |
45 | (unsigned int) *(filter_opcode_t *) pc); | |
46 | ret = -EINVAL; | |
47 | goto end; | |
48 | ||
49 | case FILTER_OP_RETURN: | |
50 | ret = 0; | |
51 | goto end; | |
52 | ||
53 | /* binary */ | |
54 | case FILTER_OP_MUL: | |
55 | case FILTER_OP_DIV: | |
56 | case FILTER_OP_MOD: | |
57 | case FILTER_OP_PLUS: | |
58 | case FILTER_OP_MINUS: | |
59 | case FILTER_OP_RSHIFT: | |
60 | case FILTER_OP_LSHIFT: | |
61 | case FILTER_OP_BIN_AND: | |
62 | case FILTER_OP_BIN_OR: | |
63 | case FILTER_OP_BIN_XOR: | |
64 | printk(KERN_WARNING "unsupported bytecode op %u\n", | |
65 | (unsigned int) *(filter_opcode_t *) pc); | |
66 | ret = -EINVAL; | |
67 | goto end; | |
68 | ||
69 | case FILTER_OP_EQ: | |
70 | { | |
71 | struct binary_op *insn = (struct binary_op *) pc; | |
72 | ||
73 | switch(vstack_ax(stack)->type) { | |
74 | default: | |
75 | printk(KERN_WARNING "unknown register type\n"); | |
76 | ret = -EINVAL; | |
77 | goto end; | |
78 | ||
79 | case REG_STRING: | |
02aca193 PP |
80 | if (vstack_bx(stack)->type == REG_STAR_GLOB_STRING) |
81 | insn->op = FILTER_OP_EQ_STAR_GLOB_STRING; | |
82 | else | |
83 | insn->op = FILTER_OP_EQ_STRING; | |
84 | break; | |
85 | case REG_STAR_GLOB_STRING: | |
86 | insn->op = FILTER_OP_EQ_STAR_GLOB_STRING; | |
07dfc1d0 MD |
87 | break; |
88 | case REG_S64: | |
89 | if (vstack_bx(stack)->type == REG_S64) | |
90 | insn->op = FILTER_OP_EQ_S64; | |
91 | else | |
92 | insn->op = FILTER_OP_EQ_DOUBLE_S64; | |
93 | break; | |
94 | case REG_DOUBLE: | |
95 | if (vstack_bx(stack)->type == REG_S64) | |
96 | insn->op = FILTER_OP_EQ_S64_DOUBLE; | |
97 | else | |
98 | insn->op = FILTER_OP_EQ_DOUBLE; | |
99 | break; | |
100 | } | |
101 | /* Pop 2, push 1 */ | |
102 | if (vstack_pop(stack)) { | |
103 | ret = -EINVAL; | |
104 | goto end; | |
105 | } | |
106 | vstack_ax(stack)->type = REG_S64; | |
107 | next_pc += sizeof(struct binary_op); | |
108 | break; | |
109 | } | |
110 | ||
111 | case FILTER_OP_NE: | |
112 | { | |
113 | struct binary_op *insn = (struct binary_op *) pc; | |
114 | ||
115 | switch(vstack_ax(stack)->type) { | |
116 | default: | |
117 | printk(KERN_WARNING "unknown register type\n"); | |
118 | ret = -EINVAL; | |
119 | goto end; | |
120 | ||
121 | case REG_STRING: | |
02aca193 PP |
122 | if (vstack_bx(stack)->type == REG_STAR_GLOB_STRING) |
123 | insn->op = FILTER_OP_NE_STAR_GLOB_STRING; | |
124 | else | |
125 | insn->op = FILTER_OP_NE_STRING; | |
126 | break; | |
127 | case REG_STAR_GLOB_STRING: | |
128 | insn->op = FILTER_OP_NE_STAR_GLOB_STRING; | |
07dfc1d0 MD |
129 | break; |
130 | case REG_S64: | |
131 | if (vstack_bx(stack)->type == REG_S64) | |
132 | insn->op = FILTER_OP_NE_S64; | |
133 | else | |
134 | insn->op = FILTER_OP_NE_DOUBLE_S64; | |
135 | break; | |
136 | case REG_DOUBLE: | |
137 | if (vstack_bx(stack)->type == REG_S64) | |
138 | insn->op = FILTER_OP_NE_S64_DOUBLE; | |
139 | else | |
140 | insn->op = FILTER_OP_NE_DOUBLE; | |
141 | break; | |
142 | } | |
143 | /* Pop 2, push 1 */ | |
144 | if (vstack_pop(stack)) { | |
145 | ret = -EINVAL; | |
146 | goto end; | |
147 | } | |
148 | vstack_ax(stack)->type = REG_S64; | |
149 | next_pc += sizeof(struct binary_op); | |
150 | break; | |
151 | } | |
152 | ||
153 | case FILTER_OP_GT: | |
154 | { | |
155 | struct binary_op *insn = (struct binary_op *) pc; | |
156 | ||
157 | switch(vstack_ax(stack)->type) { | |
158 | default: | |
159 | printk(KERN_WARNING "unknown register type\n"); | |
160 | ret = -EINVAL; | |
161 | goto end; | |
162 | ||
02aca193 PP |
163 | case REG_STAR_GLOB_STRING: |
164 | printk(KERN_WARNING "invalid register type for > binary operator\n"); | |
165 | ret = -EINVAL; | |
166 | goto end; | |
07dfc1d0 MD |
167 | case REG_STRING: |
168 | insn->op = FILTER_OP_GT_STRING; | |
169 | break; | |
170 | case REG_S64: | |
171 | if (vstack_bx(stack)->type == REG_S64) | |
172 | insn->op = FILTER_OP_GT_S64; | |
173 | else | |
174 | insn->op = FILTER_OP_GT_DOUBLE_S64; | |
175 | break; | |
176 | case REG_DOUBLE: | |
177 | if (vstack_bx(stack)->type == REG_S64) | |
178 | insn->op = FILTER_OP_GT_S64_DOUBLE; | |
179 | else | |
180 | insn->op = FILTER_OP_GT_DOUBLE; | |
181 | break; | |
182 | } | |
183 | /* Pop 2, push 1 */ | |
184 | if (vstack_pop(stack)) { | |
185 | ret = -EINVAL; | |
186 | goto end; | |
187 | } | |
188 | vstack_ax(stack)->type = REG_S64; | |
189 | next_pc += sizeof(struct binary_op); | |
190 | break; | |
191 | } | |
192 | ||
193 | case FILTER_OP_LT: | |
194 | { | |
195 | struct binary_op *insn = (struct binary_op *) pc; | |
196 | ||
197 | switch(vstack_ax(stack)->type) { | |
198 | default: | |
199 | printk(KERN_WARNING "unknown register type\n"); | |
200 | ret = -EINVAL; | |
201 | goto end; | |
202 | ||
02aca193 PP |
203 | case REG_STAR_GLOB_STRING: |
204 | printk(KERN_WARNING "invalid register type for < binary operator\n"); | |
205 | ret = -EINVAL; | |
206 | goto end; | |
07dfc1d0 MD |
207 | case REG_STRING: |
208 | insn->op = FILTER_OP_LT_STRING; | |
209 | break; | |
210 | case REG_S64: | |
211 | if (vstack_bx(stack)->type == REG_S64) | |
212 | insn->op = FILTER_OP_LT_S64; | |
213 | else | |
214 | insn->op = FILTER_OP_LT_DOUBLE_S64; | |
215 | break; | |
216 | case REG_DOUBLE: | |
217 | if (vstack_bx(stack)->type == REG_S64) | |
218 | insn->op = FILTER_OP_LT_S64_DOUBLE; | |
219 | else | |
220 | insn->op = FILTER_OP_LT_DOUBLE; | |
221 | break; | |
222 | } | |
223 | /* Pop 2, push 1 */ | |
224 | if (vstack_pop(stack)) { | |
225 | ret = -EINVAL; | |
226 | goto end; | |
227 | } | |
228 | vstack_ax(stack)->type = REG_S64; | |
229 | next_pc += sizeof(struct binary_op); | |
230 | break; | |
231 | } | |
232 | ||
233 | case FILTER_OP_GE: | |
234 | { | |
235 | struct binary_op *insn = (struct binary_op *) pc; | |
236 | ||
237 | switch(vstack_ax(stack)->type) { | |
238 | default: | |
239 | printk(KERN_WARNING "unknown register type\n"); | |
240 | ret = -EINVAL; | |
241 | goto end; | |
242 | ||
02aca193 PP |
243 | case REG_STAR_GLOB_STRING: |
244 | printk(KERN_WARNING "invalid register type for >= binary operator\n"); | |
245 | ret = -EINVAL; | |
246 | goto end; | |
07dfc1d0 MD |
247 | case REG_STRING: |
248 | insn->op = FILTER_OP_GE_STRING; | |
249 | break; | |
250 | case REG_S64: | |
251 | if (vstack_bx(stack)->type == REG_S64) | |
252 | insn->op = FILTER_OP_GE_S64; | |
253 | else | |
254 | insn->op = FILTER_OP_GE_DOUBLE_S64; | |
255 | break; | |
256 | case REG_DOUBLE: | |
257 | if (vstack_bx(stack)->type == REG_S64) | |
258 | insn->op = FILTER_OP_GE_S64_DOUBLE; | |
259 | else | |
260 | insn->op = FILTER_OP_GE_DOUBLE; | |
261 | break; | |
262 | } | |
263 | /* Pop 2, push 1 */ | |
264 | if (vstack_pop(stack)) { | |
265 | ret = -EINVAL; | |
266 | goto end; | |
267 | } | |
268 | vstack_ax(stack)->type = REG_S64; | |
269 | next_pc += sizeof(struct binary_op); | |
270 | break; | |
271 | } | |
272 | case FILTER_OP_LE: | |
273 | { | |
274 | struct binary_op *insn = (struct binary_op *) pc; | |
275 | ||
276 | switch(vstack_ax(stack)->type) { | |
277 | default: | |
278 | printk(KERN_WARNING "unknown register type\n"); | |
279 | ret = -EINVAL; | |
280 | goto end; | |
281 | ||
02aca193 PP |
282 | case REG_STAR_GLOB_STRING: |
283 | printk(KERN_WARNING "invalid register type for <= binary operator\n"); | |
284 | ret = -EINVAL; | |
285 | goto end; | |
07dfc1d0 MD |
286 | case REG_STRING: |
287 | insn->op = FILTER_OP_LE_STRING; | |
288 | break; | |
289 | case REG_S64: | |
290 | if (vstack_bx(stack)->type == REG_S64) | |
291 | insn->op = FILTER_OP_LE_S64; | |
292 | else | |
293 | insn->op = FILTER_OP_LE_DOUBLE_S64; | |
294 | break; | |
295 | case REG_DOUBLE: | |
296 | if (vstack_bx(stack)->type == REG_S64) | |
297 | insn->op = FILTER_OP_LE_S64_DOUBLE; | |
298 | else | |
299 | insn->op = FILTER_OP_LE_DOUBLE; | |
300 | break; | |
301 | } | |
302 | vstack_ax(stack)->type = REG_S64; | |
303 | next_pc += sizeof(struct binary_op); | |
304 | break; | |
305 | } | |
306 | ||
307 | case FILTER_OP_EQ_STRING: | |
308 | case FILTER_OP_NE_STRING: | |
309 | case FILTER_OP_GT_STRING: | |
310 | case FILTER_OP_LT_STRING: | |
311 | case FILTER_OP_GE_STRING: | |
312 | case FILTER_OP_LE_STRING: | |
02aca193 PP |
313 | case FILTER_OP_EQ_STAR_GLOB_STRING: |
314 | case FILTER_OP_NE_STAR_GLOB_STRING: | |
07dfc1d0 MD |
315 | case FILTER_OP_EQ_S64: |
316 | case FILTER_OP_NE_S64: | |
317 | case FILTER_OP_GT_S64: | |
318 | case FILTER_OP_LT_S64: | |
319 | case FILTER_OP_GE_S64: | |
320 | case FILTER_OP_LE_S64: | |
321 | case FILTER_OP_EQ_DOUBLE: | |
322 | case FILTER_OP_NE_DOUBLE: | |
323 | case FILTER_OP_GT_DOUBLE: | |
324 | case FILTER_OP_LT_DOUBLE: | |
325 | case FILTER_OP_GE_DOUBLE: | |
326 | case FILTER_OP_LE_DOUBLE: | |
327 | case FILTER_OP_EQ_DOUBLE_S64: | |
328 | case FILTER_OP_NE_DOUBLE_S64: | |
329 | case FILTER_OP_GT_DOUBLE_S64: | |
330 | case FILTER_OP_LT_DOUBLE_S64: | |
331 | case FILTER_OP_GE_DOUBLE_S64: | |
332 | case FILTER_OP_LE_DOUBLE_S64: | |
333 | case FILTER_OP_EQ_S64_DOUBLE: | |
334 | case FILTER_OP_NE_S64_DOUBLE: | |
335 | case FILTER_OP_GT_S64_DOUBLE: | |
336 | case FILTER_OP_LT_S64_DOUBLE: | |
337 | case FILTER_OP_GE_S64_DOUBLE: | |
338 | case FILTER_OP_LE_S64_DOUBLE: | |
339 | { | |
340 | /* Pop 2, push 1 */ | |
341 | if (vstack_pop(stack)) { | |
342 | ret = -EINVAL; | |
343 | goto end; | |
344 | } | |
345 | vstack_ax(stack)->type = REG_S64; | |
346 | next_pc += sizeof(struct binary_op); | |
347 | break; | |
348 | } | |
349 | ||
350 | /* unary */ | |
351 | case FILTER_OP_UNARY_PLUS: | |
352 | { | |
353 | struct unary_op *insn = (struct unary_op *) pc; | |
354 | ||
355 | switch(vstack_ax(stack)->type) { | |
356 | default: | |
357 | printk(KERN_WARNING "unknown register type\n"); | |
358 | ret = -EINVAL; | |
359 | goto end; | |
360 | ||
361 | case REG_S64: | |
362 | insn->op = FILTER_OP_UNARY_PLUS_S64; | |
363 | break; | |
364 | case REG_DOUBLE: | |
365 | insn->op = FILTER_OP_UNARY_PLUS_DOUBLE; | |
366 | break; | |
367 | } | |
368 | /* Pop 1, push 1 */ | |
369 | next_pc += sizeof(struct unary_op); | |
370 | break; | |
371 | } | |
372 | ||
373 | case FILTER_OP_UNARY_MINUS: | |
374 | { | |
375 | struct unary_op *insn = (struct unary_op *) pc; | |
376 | ||
377 | switch(vstack_ax(stack)->type) { | |
378 | default: | |
379 | printk(KERN_WARNING "unknown register type\n"); | |
380 | ret = -EINVAL; | |
381 | goto end; | |
382 | ||
383 | case REG_S64: | |
384 | insn->op = FILTER_OP_UNARY_MINUS_S64; | |
385 | break; | |
386 | case REG_DOUBLE: | |
387 | insn->op = FILTER_OP_UNARY_MINUS_DOUBLE; | |
388 | break; | |
389 | } | |
390 | /* Pop 1, push 1 */ | |
391 | next_pc += sizeof(struct unary_op); | |
392 | break; | |
393 | } | |
394 | ||
395 | case FILTER_OP_UNARY_NOT: | |
396 | { | |
397 | struct unary_op *insn = (struct unary_op *) pc; | |
398 | ||
399 | switch(vstack_ax(stack)->type) { | |
400 | default: | |
401 | printk(KERN_WARNING "unknown register type\n"); | |
402 | ret = -EINVAL; | |
403 | goto end; | |
404 | ||
405 | case REG_S64: | |
406 | insn->op = FILTER_OP_UNARY_NOT_S64; | |
407 | break; | |
408 | case REG_DOUBLE: | |
409 | insn->op = FILTER_OP_UNARY_NOT_DOUBLE; | |
410 | break; | |
411 | } | |
412 | /* Pop 1, push 1 */ | |
413 | next_pc += sizeof(struct unary_op); | |
414 | break; | |
415 | } | |
416 | ||
417 | case FILTER_OP_UNARY_PLUS_S64: | |
418 | case FILTER_OP_UNARY_MINUS_S64: | |
419 | case FILTER_OP_UNARY_NOT_S64: | |
420 | case FILTER_OP_UNARY_PLUS_DOUBLE: | |
421 | case FILTER_OP_UNARY_MINUS_DOUBLE: | |
422 | case FILTER_OP_UNARY_NOT_DOUBLE: | |
423 | { | |
424 | /* Pop 1, push 1 */ | |
425 | next_pc += sizeof(struct unary_op); | |
426 | break; | |
427 | } | |
428 | ||
429 | /* logical */ | |
430 | case FILTER_OP_AND: | |
431 | case FILTER_OP_OR: | |
432 | { | |
433 | /* Continue to next instruction */ | |
434 | /* Pop 1 when jump not taken */ | |
435 | if (vstack_pop(stack)) { | |
436 | ret = -EINVAL; | |
437 | goto end; | |
438 | } | |
439 | next_pc += sizeof(struct logical_op); | |
440 | break; | |
441 | } | |
442 | ||
443 | /* load field ref */ | |
444 | case FILTER_OP_LOAD_FIELD_REF: | |
445 | { | |
446 | printk(KERN_WARNING "Unknown field ref type\n"); | |
447 | ret = -EINVAL; | |
448 | goto end; | |
449 | } | |
450 | /* get context ref */ | |
451 | case FILTER_OP_GET_CONTEXT_REF: | |
452 | { | |
453 | printk(KERN_WARNING "Unknown get context ref type\n"); | |
454 | ret = -EINVAL; | |
455 | goto end; | |
456 | } | |
457 | case FILTER_OP_LOAD_FIELD_REF_STRING: | |
458 | case FILTER_OP_LOAD_FIELD_REF_SEQUENCE: | |
459 | case FILTER_OP_GET_CONTEXT_REF_STRING: | |
f127e61e MD |
460 | case FILTER_OP_LOAD_FIELD_REF_USER_STRING: |
461 | case FILTER_OP_LOAD_FIELD_REF_USER_SEQUENCE: | |
07dfc1d0 MD |
462 | { |
463 | if (vstack_push(stack)) { | |
464 | ret = -EINVAL; | |
465 | goto end; | |
466 | } | |
467 | vstack_ax(stack)->type = REG_STRING; | |
468 | next_pc += sizeof(struct load_op) + sizeof(struct field_ref); | |
469 | break; | |
470 | } | |
471 | case FILTER_OP_LOAD_FIELD_REF_S64: | |
472 | case FILTER_OP_GET_CONTEXT_REF_S64: | |
473 | { | |
474 | if (vstack_push(stack)) { | |
475 | ret = -EINVAL; | |
476 | goto end; | |
477 | } | |
478 | vstack_ax(stack)->type = REG_S64; | |
479 | next_pc += sizeof(struct load_op) + sizeof(struct field_ref); | |
480 | break; | |
481 | } | |
482 | case FILTER_OP_LOAD_FIELD_REF_DOUBLE: | |
483 | case FILTER_OP_GET_CONTEXT_REF_DOUBLE: | |
484 | { | |
485 | if (vstack_push(stack)) { | |
486 | ret = -EINVAL; | |
487 | goto end; | |
488 | } | |
489 | vstack_ax(stack)->type = REG_DOUBLE; | |
490 | next_pc += sizeof(struct load_op) + sizeof(struct field_ref); | |
491 | break; | |
492 | } | |
493 | ||
494 | /* load from immediate operand */ | |
495 | case FILTER_OP_LOAD_STRING: | |
496 | { | |
497 | struct load_op *insn = (struct load_op *) pc; | |
498 | ||
499 | if (vstack_push(stack)) { | |
500 | ret = -EINVAL; | |
501 | goto end; | |
502 | } | |
503 | vstack_ax(stack)->type = REG_STRING; | |
504 | next_pc += sizeof(struct load_op) + strlen(insn->data) + 1; | |
505 | break; | |
506 | } | |
507 | ||
02aca193 PP |
508 | case FILTER_OP_LOAD_STAR_GLOB_STRING: |
509 | { | |
510 | struct load_op *insn = (struct load_op *) pc; | |
511 | ||
512 | if (vstack_push(stack)) { | |
513 | ret = -EINVAL; | |
514 | goto end; | |
515 | } | |
516 | vstack_ax(stack)->type = REG_STAR_GLOB_STRING; | |
517 | next_pc += sizeof(struct load_op) + strlen(insn->data) + 1; | |
518 | break; | |
519 | } | |
520 | ||
07dfc1d0 MD |
521 | case FILTER_OP_LOAD_S64: |
522 | { | |
523 | if (vstack_push(stack)) { | |
524 | ret = -EINVAL; | |
525 | goto end; | |
526 | } | |
527 | vstack_ax(stack)->type = REG_S64; | |
528 | next_pc += sizeof(struct load_op) | |
529 | + sizeof(struct literal_numeric); | |
530 | break; | |
531 | } | |
532 | ||
533 | case FILTER_OP_LOAD_DOUBLE: | |
534 | { | |
535 | if (vstack_push(stack)) { | |
536 | ret = -EINVAL; | |
537 | goto end; | |
538 | } | |
539 | vstack_ax(stack)->type = REG_DOUBLE; | |
540 | next_pc += sizeof(struct load_op) | |
541 | + sizeof(struct literal_double); | |
542 | break; | |
543 | } | |
544 | ||
545 | /* cast */ | |
546 | case FILTER_OP_CAST_TO_S64: | |
547 | { | |
548 | struct cast_op *insn = (struct cast_op *) pc; | |
549 | ||
550 | switch (vstack_ax(stack)->type) { | |
551 | default: | |
552 | printk(KERN_WARNING "unknown register type\n"); | |
553 | ret = -EINVAL; | |
554 | goto end; | |
555 | ||
556 | case REG_STRING: | |
02aca193 | 557 | case REG_STAR_GLOB_STRING: |
07dfc1d0 MD |
558 | printk(KERN_WARNING "Cast op can only be applied to numeric or floating point registers\n"); |
559 | ret = -EINVAL; | |
560 | goto end; | |
561 | case REG_S64: | |
562 | insn->op = FILTER_OP_CAST_NOP; | |
563 | break; | |
564 | case REG_DOUBLE: | |
565 | insn->op = FILTER_OP_CAST_DOUBLE_TO_S64; | |
566 | break; | |
567 | } | |
568 | /* Pop 1, push 1 */ | |
569 | vstack_ax(stack)->type = REG_S64; | |
570 | next_pc += sizeof(struct cast_op); | |
571 | break; | |
572 | } | |
573 | case FILTER_OP_CAST_DOUBLE_TO_S64: | |
574 | { | |
575 | /* Pop 1, push 1 */ | |
576 | vstack_ax(stack)->type = REG_S64; | |
577 | next_pc += sizeof(struct cast_op); | |
578 | break; | |
579 | } | |
580 | case FILTER_OP_CAST_NOP: | |
581 | { | |
582 | next_pc += sizeof(struct cast_op); | |
583 | break; | |
584 | } | |
585 | ||
586 | } | |
587 | } | |
588 | end: | |
589 | return ret; | |
590 | } |