Commit | Line | Data |
---|---|---|
97b58163 | 1 | /* |
c0c0989a | 2 | * SPDX-License-Identifier: MIT |
97b58163 | 3 | * |
7e50015d | 4 | * Copyright (C) 2010-2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
97b58163 | 5 | * |
c0c0989a | 6 | * LTTng UST bytecode specializer. |
97b58163 MD |
7 | */ |
8 | ||
3fbec7dc | 9 | #define _LGPL_SOURCE |
b4051ad8 | 10 | #include <stddef.h> |
fb31eb73 | 11 | #include <stdint.h> |
b4051ad8 | 12 | |
47e5f13e | 13 | #include <lttng/align.h> |
fc80554e MJ |
14 | |
15 | #include "context-internal.h" | |
16 | #include "lttng-bytecode.h" | |
92495593 | 17 | #include "ust-events-internal.h" |
97b58163 | 18 | |
47e5f13e MD |
19 | static int lttng_fls(int val) |
20 | { | |
21 | int r = 32; | |
22 | unsigned int x = (unsigned int) val; | |
23 | ||
24 | if (!x) | |
25 | return 0; | |
26 | if (!(x & 0xFFFF0000U)) { | |
27 | x <<= 16; | |
28 | r -= 16; | |
29 | } | |
30 | if (!(x & 0xFF000000U)) { | |
31 | x <<= 8; | |
32 | r -= 8; | |
33 | } | |
34 | if (!(x & 0xF0000000U)) { | |
35 | x <<= 4; | |
36 | r -= 4; | |
37 | } | |
38 | if (!(x & 0xC0000000U)) { | |
39 | x <<= 2; | |
40 | r -= 2; | |
41 | } | |
42 | if (!(x & 0x80000000U)) { | |
43 | r -= 1; | |
44 | } | |
45 | return r; | |
46 | } | |
47 | ||
48 | static int get_count_order(unsigned int count) | |
49 | { | |
50 | int order; | |
51 | ||
52 | order = lttng_fls(count) - 1; | |
53 | if (count & (count - 1)) | |
54 | order++; | |
55 | return order; | |
56 | } | |
57 | ||
58 | static ssize_t bytecode_reserve_data(struct bytecode_runtime *runtime, | |
59 | size_t align, size_t len) | |
60 | { | |
61 | ssize_t ret; | |
b72687b8 | 62 | size_t padding = lttng_ust_offset_align(runtime->data_len, align); |
47e5f13e MD |
63 | size_t new_len = runtime->data_len + padding + len; |
64 | size_t new_alloc_len = new_len; | |
65 | size_t old_alloc_len = runtime->data_alloc_len; | |
66 | ||
04aa13f8 | 67 | if (new_len > BYTECODE_MAX_DATA_LEN) |
47e5f13e MD |
68 | return -EINVAL; |
69 | ||
70 | if (new_alloc_len > old_alloc_len) { | |
71 | char *newptr; | |
72 | ||
73 | new_alloc_len = | |
74 | max_t(size_t, 1U << get_count_order(new_alloc_len), old_alloc_len << 1); | |
75 | newptr = realloc(runtime->data, new_alloc_len); | |
76 | if (!newptr) | |
77 | return -ENOMEM; | |
78 | runtime->data = newptr; | |
79 | /* We zero directly the memory from start of allocation. */ | |
80 | memset(&runtime->data[old_alloc_len], 0, new_alloc_len - old_alloc_len); | |
81 | runtime->data_alloc_len = new_alloc_len; | |
82 | } | |
83 | runtime->data_len += padding; | |
84 | ret = runtime->data_len; | |
85 | runtime->data_len += len; | |
86 | return ret; | |
87 | } | |
88 | ||
89 | static ssize_t bytecode_push_data(struct bytecode_runtime *runtime, | |
90 | const void *p, size_t align, size_t len) | |
91 | { | |
92 | ssize_t offset; | |
93 | ||
94 | offset = bytecode_reserve_data(runtime, align, len); | |
95 | if (offset < 0) | |
96 | return -ENOMEM; | |
97 | memcpy(&runtime->data[offset], p, len); | |
98 | return offset; | |
99 | } | |
100 | ||
101 | static int specialize_load_field(struct vstack_entry *stack_top, | |
102 | struct load_op *insn) | |
103 | { | |
104 | int ret; | |
105 | ||
106 | switch (stack_top->load.type) { | |
107 | case LOAD_OBJECT: | |
108 | break; | |
109 | case LOAD_ROOT_CONTEXT: | |
110 | case LOAD_ROOT_APP_CONTEXT: | |
111 | case LOAD_ROOT_PAYLOAD: | |
112 | default: | |
04aa13f8 | 113 | dbg_printf("Bytecode warning: cannot load root, missing field name.\n"); |
47e5f13e MD |
114 | ret = -EINVAL; |
115 | goto end; | |
116 | } | |
117 | switch (stack_top->load.object_type) { | |
118 | case OBJECT_TYPE_S8: | |
119 | dbg_printf("op load field s8\n"); | |
120 | stack_top->type = REG_S64; | |
121 | if (!stack_top->load.rev_bo) | |
04aa13f8 | 122 | insn->op = BYTECODE_OP_LOAD_FIELD_S8; |
47e5f13e MD |
123 | break; |
124 | case OBJECT_TYPE_S16: | |
125 | dbg_printf("op load field s16\n"); | |
126 | stack_top->type = REG_S64; | |
127 | if (!stack_top->load.rev_bo) | |
04aa13f8 | 128 | insn->op = BYTECODE_OP_LOAD_FIELD_S16; |
47e5f13e MD |
129 | break; |
130 | case OBJECT_TYPE_S32: | |
131 | dbg_printf("op load field s32\n"); | |
132 | stack_top->type = REG_S64; | |
133 | if (!stack_top->load.rev_bo) | |
04aa13f8 | 134 | insn->op = BYTECODE_OP_LOAD_FIELD_S32; |
47e5f13e MD |
135 | break; |
136 | case OBJECT_TYPE_S64: | |
137 | dbg_printf("op load field s64\n"); | |
138 | stack_top->type = REG_S64; | |
139 | if (!stack_top->load.rev_bo) | |
04aa13f8 | 140 | insn->op = BYTECODE_OP_LOAD_FIELD_S64; |
47e5f13e | 141 | break; |
70f9f7f9 FD |
142 | case OBJECT_TYPE_SIGNED_ENUM: |
143 | dbg_printf("op load field signed enumeration\n"); | |
144 | stack_top->type = REG_PTR; | |
145 | break; | |
47e5f13e MD |
146 | case OBJECT_TYPE_U8: |
147 | dbg_printf("op load field u8\n"); | |
d97f9b78 | 148 | stack_top->type = REG_U64; |
04aa13f8 | 149 | insn->op = BYTECODE_OP_LOAD_FIELD_U8; |
47e5f13e MD |
150 | break; |
151 | case OBJECT_TYPE_U16: | |
152 | dbg_printf("op load field u16\n"); | |
d97f9b78 | 153 | stack_top->type = REG_U64; |
47e5f13e | 154 | if (!stack_top->load.rev_bo) |
04aa13f8 | 155 | insn->op = BYTECODE_OP_LOAD_FIELD_U16; |
47e5f13e MD |
156 | break; |
157 | case OBJECT_TYPE_U32: | |
158 | dbg_printf("op load field u32\n"); | |
d97f9b78 | 159 | stack_top->type = REG_U64; |
47e5f13e | 160 | if (!stack_top->load.rev_bo) |
04aa13f8 | 161 | insn->op = BYTECODE_OP_LOAD_FIELD_U32; |
47e5f13e MD |
162 | break; |
163 | case OBJECT_TYPE_U64: | |
164 | dbg_printf("op load field u64\n"); | |
d97f9b78 | 165 | stack_top->type = REG_U64; |
47e5f13e | 166 | if (!stack_top->load.rev_bo) |
04aa13f8 | 167 | insn->op = BYTECODE_OP_LOAD_FIELD_U64; |
47e5f13e | 168 | break; |
70f9f7f9 FD |
169 | case OBJECT_TYPE_UNSIGNED_ENUM: |
170 | dbg_printf("op load field unsigned enumeration\n"); | |
171 | stack_top->type = REG_PTR; | |
172 | break; | |
47e5f13e MD |
173 | case OBJECT_TYPE_DOUBLE: |
174 | stack_top->type = REG_DOUBLE; | |
04aa13f8 | 175 | insn->op = BYTECODE_OP_LOAD_FIELD_DOUBLE; |
47e5f13e MD |
176 | break; |
177 | case OBJECT_TYPE_STRING: | |
178 | dbg_printf("op load field string\n"); | |
179 | stack_top->type = REG_STRING; | |
04aa13f8 | 180 | insn->op = BYTECODE_OP_LOAD_FIELD_STRING; |
47e5f13e MD |
181 | break; |
182 | case OBJECT_TYPE_STRING_SEQUENCE: | |
183 | dbg_printf("op load field string sequence\n"); | |
184 | stack_top->type = REG_STRING; | |
04aa13f8 | 185 | insn->op = BYTECODE_OP_LOAD_FIELD_SEQUENCE; |
47e5f13e MD |
186 | break; |
187 | case OBJECT_TYPE_DYNAMIC: | |
188 | dbg_printf("op load field dynamic\n"); | |
189 | stack_top->type = REG_UNKNOWN; | |
190 | /* Don't specialize load op. */ | |
191 | break; | |
192 | case OBJECT_TYPE_SEQUENCE: | |
193 | case OBJECT_TYPE_ARRAY: | |
194 | case OBJECT_TYPE_STRUCT: | |
195 | case OBJECT_TYPE_VARIANT: | |
196 | ERR("Sequences, arrays, struct and variant cannot be loaded (nested types)."); | |
197 | ret = -EINVAL; | |
198 | goto end; | |
199 | } | |
200 | return 0; | |
201 | ||
202 | end: | |
203 | return ret; | |
204 | } | |
205 | ||
206 | static int specialize_get_index_object_type(enum object_type *otype, | |
207 | int signedness, uint32_t elem_len) | |
208 | { | |
209 | switch (elem_len) { | |
210 | case 8: | |
211 | if (signedness) | |
212 | *otype = OBJECT_TYPE_S8; | |
213 | else | |
214 | *otype = OBJECT_TYPE_U8; | |
215 | break; | |
216 | case 16: | |
217 | if (signedness) | |
218 | *otype = OBJECT_TYPE_S16; | |
219 | else | |
220 | *otype = OBJECT_TYPE_U16; | |
221 | break; | |
222 | case 32: | |
223 | if (signedness) | |
224 | *otype = OBJECT_TYPE_S32; | |
225 | else | |
226 | *otype = OBJECT_TYPE_U32; | |
227 | break; | |
228 | case 64: | |
229 | if (signedness) | |
230 | *otype = OBJECT_TYPE_S64; | |
231 | else | |
232 | *otype = OBJECT_TYPE_U64; | |
233 | break; | |
234 | default: | |
235 | return -EINVAL; | |
236 | } | |
237 | return 0; | |
238 | } | |
239 | ||
240 | static int specialize_get_index(struct bytecode_runtime *runtime, | |
241 | struct load_op *insn, uint64_t index, | |
242 | struct vstack_entry *stack_top, | |
243 | int idx_len) | |
244 | { | |
245 | int ret; | |
04aa13f8 | 246 | struct bytecode_get_index_data gid; |
47e5f13e MD |
247 | ssize_t data_offset; |
248 | ||
249 | memset(&gid, 0, sizeof(gid)); | |
250 | switch (stack_top->load.type) { | |
251 | case LOAD_OBJECT: | |
252 | switch (stack_top->load.object_type) { | |
253 | case OBJECT_TYPE_ARRAY: | |
254 | { | |
218deb69 | 255 | const struct lttng_integer_type *integer_type; |
47e5f13e MD |
256 | const struct lttng_event_field *field; |
257 | uint32_t elem_len, num_elems; | |
258 | int signedness; | |
259 | ||
260 | field = stack_top->load.field; | |
218deb69 MD |
261 | switch (field->type.atype) { |
262 | case atype_array: | |
263 | integer_type = &field->type.u.legacy.array.elem_type.u.basic.integer; | |
264 | num_elems = field->type.u.legacy.array.length; | |
265 | break; | |
266 | case atype_array_nestable: | |
267 | if (field->type.u.array_nestable.elem_type->atype != atype_integer) { | |
268 | ret = -EINVAL; | |
269 | goto end; | |
270 | } | |
271 | integer_type = &field->type.u.array_nestable.elem_type->u.integer; | |
272 | num_elems = field->type.u.array_nestable.length; | |
273 | break; | |
274 | default: | |
275 | ret = -EINVAL; | |
276 | goto end; | |
277 | } | |
278 | elem_len = integer_type->size; | |
279 | signedness = integer_type->signedness; | |
47e5f13e MD |
280 | if (index >= num_elems) { |
281 | ret = -EINVAL; | |
282 | goto end; | |
283 | } | |
284 | ret = specialize_get_index_object_type(&stack_top->load.object_type, | |
285 | signedness, elem_len); | |
286 | if (ret) | |
287 | goto end; | |
288 | gid.offset = index * (elem_len / CHAR_BIT); | |
289 | gid.array_len = num_elems * (elem_len / CHAR_BIT); | |
290 | gid.elem.type = stack_top->load.object_type; | |
291 | gid.elem.len = elem_len; | |
218deb69 | 292 | if (integer_type->reverse_byte_order) |
47e5f13e MD |
293 | gid.elem.rev_bo = true; |
294 | stack_top->load.rev_bo = gid.elem.rev_bo; | |
295 | break; | |
296 | } | |
297 | case OBJECT_TYPE_SEQUENCE: | |
298 | { | |
218deb69 | 299 | const struct lttng_integer_type *integer_type; |
47e5f13e MD |
300 | const struct lttng_event_field *field; |
301 | uint32_t elem_len; | |
302 | int signedness; | |
303 | ||
304 | field = stack_top->load.field; | |
218deb69 MD |
305 | switch (field->type.atype) { |
306 | case atype_sequence: | |
307 | integer_type = &field->type.u.legacy.sequence.elem_type.u.basic.integer; | |
308 | break; | |
309 | case atype_sequence_nestable: | |
310 | if (field->type.u.sequence_nestable.elem_type->atype != atype_integer) { | |
311 | ret = -EINVAL; | |
312 | goto end; | |
313 | } | |
314 | integer_type = &field->type.u.sequence_nestable.elem_type->u.integer; | |
315 | break; | |
316 | default: | |
317 | ret = -EINVAL; | |
318 | goto end; | |
319 | } | |
320 | elem_len = integer_type->size; | |
321 | signedness = integer_type->signedness; | |
47e5f13e MD |
322 | ret = specialize_get_index_object_type(&stack_top->load.object_type, |
323 | signedness, elem_len); | |
324 | if (ret) | |
325 | goto end; | |
326 | gid.offset = index * (elem_len / CHAR_BIT); | |
327 | gid.elem.type = stack_top->load.object_type; | |
328 | gid.elem.len = elem_len; | |
218deb69 | 329 | if (integer_type->reverse_byte_order) |
47e5f13e MD |
330 | gid.elem.rev_bo = true; |
331 | stack_top->load.rev_bo = gid.elem.rev_bo; | |
332 | break; | |
333 | } | |
334 | case OBJECT_TYPE_STRUCT: | |
335 | /* Only generated by the specialize phase. */ | |
336 | case OBJECT_TYPE_VARIANT: /* Fall-through */ | |
337 | default: | |
338 | ERR("Unexpected get index type %d", | |
339 | (int) stack_top->load.object_type); | |
340 | ret = -EINVAL; | |
341 | goto end; | |
342 | } | |
343 | break; | |
344 | case LOAD_ROOT_CONTEXT: | |
345 | case LOAD_ROOT_APP_CONTEXT: | |
346 | case LOAD_ROOT_PAYLOAD: | |
347 | ERR("Index lookup for root field not implemented yet."); | |
348 | ret = -EINVAL; | |
349 | goto end; | |
350 | } | |
351 | data_offset = bytecode_push_data(runtime, &gid, | |
352 | __alignof__(gid), sizeof(gid)); | |
353 | if (data_offset < 0) { | |
354 | ret = -EINVAL; | |
355 | goto end; | |
356 | } | |
357 | switch (idx_len) { | |
358 | case 2: | |
359 | ((struct get_index_u16 *) insn->data)->index = data_offset; | |
360 | break; | |
361 | case 8: | |
362 | ((struct get_index_u64 *) insn->data)->index = data_offset; | |
363 | break; | |
364 | default: | |
365 | ret = -EINVAL; | |
366 | goto end; | |
367 | } | |
368 | ||
369 | return 0; | |
370 | ||
371 | end: | |
372 | return ret; | |
373 | } | |
374 | ||
375 | static int specialize_context_lookup_name(struct lttng_ctx *ctx, | |
376 | struct bytecode_runtime *bytecode, | |
377 | struct load_op *insn) | |
378 | { | |
379 | uint16_t offset; | |
380 | const char *name; | |
381 | ||
382 | offset = ((struct get_symbol *) insn->data)->offset; | |
362a65de | 383 | name = bytecode->p.priv->bc->bc.data + bytecode->p.priv->bc->bc.reloc_offset + offset; |
47e5f13e MD |
384 | return lttng_get_context_index(ctx, name); |
385 | } | |
386 | ||
387 | static int specialize_load_object(const struct lttng_event_field *field, | |
388 | struct vstack_load *load, bool is_context) | |
389 | { | |
390 | load->type = LOAD_OBJECT; | |
d97f9b78 | 391 | |
47e5f13e MD |
392 | switch (field->type.atype) { |
393 | case atype_integer: | |
218deb69 | 394 | if (field->type.u.integer.signedness) |
47e5f13e MD |
395 | load->object_type = OBJECT_TYPE_S64; |
396 | else | |
397 | load->object_type = OBJECT_TYPE_U64; | |
398 | load->rev_bo = false; | |
399 | break; | |
400 | case atype_enum: | |
218deb69 | 401 | case atype_enum_nestable: |
47e5f13e | 402 | { |
218deb69 | 403 | const struct lttng_integer_type *itype; |
47e5f13e | 404 | |
218deb69 MD |
405 | if (field->type.atype == atype_enum) { |
406 | itype = &field->type.u.legacy.basic.enumeration.container_type; | |
407 | } else { | |
408 | itype = &field->type.u.enum_nestable.container_type->u.integer; | |
409 | } | |
47e5f13e | 410 | if (itype->signedness) |
70f9f7f9 | 411 | load->object_type = OBJECT_TYPE_SIGNED_ENUM; |
47e5f13e | 412 | else |
70f9f7f9 | 413 | load->object_type = OBJECT_TYPE_UNSIGNED_ENUM; |
47e5f13e MD |
414 | load->rev_bo = false; |
415 | break; | |
416 | } | |
417 | case atype_array: | |
218deb69 MD |
418 | if (field->type.u.legacy.array.elem_type.atype != atype_integer) { |
419 | ERR("Array nesting only supports integer types."); | |
420 | return -EINVAL; | |
421 | } | |
422 | if (is_context) { | |
423 | load->object_type = OBJECT_TYPE_STRING; | |
424 | } else { | |
425 | if (field->type.u.legacy.array.elem_type.u.basic.integer.encoding == lttng_encode_none) { | |
426 | load->object_type = OBJECT_TYPE_ARRAY; | |
427 | load->field = field; | |
428 | } else { | |
429 | load->object_type = OBJECT_TYPE_STRING_SEQUENCE; | |
430 | } | |
431 | } | |
432 | break; | |
433 | case atype_array_nestable: | |
434 | if (field->type.u.array_nestable.elem_type->atype != atype_integer) { | |
47e5f13e MD |
435 | ERR("Array nesting only supports integer types."); |
436 | return -EINVAL; | |
437 | } | |
438 | if (is_context) { | |
439 | load->object_type = OBJECT_TYPE_STRING; | |
440 | } else { | |
218deb69 | 441 | if (field->type.u.array_nestable.elem_type->u.integer.encoding == lttng_encode_none) { |
47e5f13e MD |
442 | load->object_type = OBJECT_TYPE_ARRAY; |
443 | load->field = field; | |
444 | } else { | |
445 | load->object_type = OBJECT_TYPE_STRING_SEQUENCE; | |
446 | } | |
447 | } | |
448 | break; | |
449 | case atype_sequence: | |
218deb69 MD |
450 | if (field->type.u.legacy.sequence.elem_type.atype != atype_integer) { |
451 | ERR("Sequence nesting only supports integer types."); | |
452 | return -EINVAL; | |
453 | } | |
454 | if (is_context) { | |
455 | load->object_type = OBJECT_TYPE_STRING; | |
456 | } else { | |
457 | if (field->type.u.legacy.sequence.elem_type.u.basic.integer.encoding == lttng_encode_none) { | |
458 | load->object_type = OBJECT_TYPE_SEQUENCE; | |
459 | load->field = field; | |
460 | } else { | |
461 | load->object_type = OBJECT_TYPE_STRING_SEQUENCE; | |
462 | } | |
463 | } | |
464 | break; | |
465 | case atype_sequence_nestable: | |
466 | if (field->type.u.sequence_nestable.elem_type->atype != atype_integer) { | |
47e5f13e MD |
467 | ERR("Sequence nesting only supports integer types."); |
468 | return -EINVAL; | |
469 | } | |
470 | if (is_context) { | |
471 | load->object_type = OBJECT_TYPE_STRING; | |
472 | } else { | |
218deb69 | 473 | if (field->type.u.sequence_nestable.elem_type->u.integer.encoding == lttng_encode_none) { |
47e5f13e MD |
474 | load->object_type = OBJECT_TYPE_SEQUENCE; |
475 | load->field = field; | |
476 | } else { | |
477 | load->object_type = OBJECT_TYPE_STRING_SEQUENCE; | |
478 | } | |
479 | } | |
480 | break; | |
218deb69 | 481 | |
47e5f13e MD |
482 | case atype_string: |
483 | load->object_type = OBJECT_TYPE_STRING; | |
484 | break; | |
485 | case atype_float: | |
486 | load->object_type = OBJECT_TYPE_DOUBLE; | |
487 | break; | |
488 | case atype_dynamic: | |
489 | load->object_type = OBJECT_TYPE_DYNAMIC; | |
8d3190bd | 490 | break; |
47e5f13e MD |
491 | case atype_struct: |
492 | ERR("Structure type cannot be loaded."); | |
493 | return -EINVAL; | |
494 | default: | |
495 | ERR("Unknown type: %d", (int) field->type.atype); | |
496 | return -EINVAL; | |
497 | } | |
498 | return 0; | |
499 | } | |
500 | ||
b77aaa1b | 501 | static int specialize_context_lookup(struct lttng_ctx *ctx, |
47e5f13e MD |
502 | struct bytecode_runtime *runtime, |
503 | struct load_op *insn, | |
504 | struct vstack_load *load) | |
505 | { | |
506 | int idx, ret; | |
507 | struct lttng_ctx_field *ctx_field; | |
508 | struct lttng_event_field *field; | |
04aa13f8 | 509 | struct bytecode_get_index_data gid; |
47e5f13e MD |
510 | ssize_t data_offset; |
511 | ||
b77aaa1b | 512 | idx = specialize_context_lookup_name(ctx, runtime, insn); |
47e5f13e MD |
513 | if (idx < 0) { |
514 | return -ENOENT; | |
515 | } | |
b77aaa1b | 516 | ctx_field = &ctx->fields[idx]; |
47e5f13e MD |
517 | field = &ctx_field->event_field; |
518 | ret = specialize_load_object(field, load, true); | |
519 | if (ret) | |
520 | return ret; | |
521 | /* Specialize each get_symbol into a get_index. */ | |
04aa13f8 | 522 | insn->op = BYTECODE_OP_GET_INDEX_U16; |
47e5f13e MD |
523 | memset(&gid, 0, sizeof(gid)); |
524 | gid.ctx_index = idx; | |
525 | gid.elem.type = load->object_type; | |
6bbd9df3 | 526 | gid.elem.rev_bo = load->rev_bo; |
f3503ba9 | 527 | gid.field = field; |
47e5f13e MD |
528 | data_offset = bytecode_push_data(runtime, &gid, |
529 | __alignof__(gid), sizeof(gid)); | |
530 | if (data_offset < 0) { | |
531 | return -EINVAL; | |
532 | } | |
533 | ((struct get_index_u16 *) insn->data)->index = data_offset; | |
534 | return 0; | |
535 | } | |
536 | ||
b77aaa1b | 537 | static int specialize_app_context_lookup(struct lttng_ctx **pctx, |
47e5f13e MD |
538 | struct bytecode_runtime *runtime, |
539 | struct load_op *insn, | |
540 | struct vstack_load *load) | |
541 | { | |
542 | uint16_t offset; | |
543 | const char *orig_name; | |
544 | char *name = NULL; | |
545 | int idx, ret; | |
546 | struct lttng_ctx_field *ctx_field; | |
547 | struct lttng_event_field *field; | |
04aa13f8 | 548 | struct bytecode_get_index_data gid; |
47e5f13e MD |
549 | ssize_t data_offset; |
550 | ||
551 | offset = ((struct get_symbol *) insn->data)->offset; | |
362a65de | 552 | orig_name = runtime->p.priv->bc->bc.data + runtime->p.priv->bc->bc.reloc_offset + offset; |
47e5f13e MD |
553 | name = zmalloc(strlen(orig_name) + strlen("$app.") + 1); |
554 | if (!name) { | |
555 | ret = -ENOMEM; | |
556 | goto end; | |
557 | } | |
558 | strcpy(name, "$app."); | |
559 | strcat(name, orig_name); | |
b77aaa1b | 560 | idx = lttng_get_context_index(*pctx, name); |
47e5f13e MD |
561 | if (idx < 0) { |
562 | assert(lttng_context_is_app(name)); | |
563 | ret = lttng_ust_add_app_context_to_ctx_rcu(name, | |
b77aaa1b | 564 | pctx); |
47e5f13e MD |
565 | if (ret) |
566 | return ret; | |
b77aaa1b | 567 | idx = lttng_get_context_index(*pctx, name); |
47e5f13e MD |
568 | if (idx < 0) |
569 | return -ENOENT; | |
570 | } | |
b77aaa1b | 571 | ctx_field = &(*pctx)->fields[idx]; |
47e5f13e MD |
572 | field = &ctx_field->event_field; |
573 | ret = specialize_load_object(field, load, true); | |
574 | if (ret) | |
575 | goto end; | |
576 | /* Specialize each get_symbol into a get_index. */ | |
04aa13f8 | 577 | insn->op = BYTECODE_OP_GET_INDEX_U16; |
47e5f13e MD |
578 | memset(&gid, 0, sizeof(gid)); |
579 | gid.ctx_index = idx; | |
580 | gid.elem.type = load->object_type; | |
6bbd9df3 | 581 | gid.elem.rev_bo = load->rev_bo; |
f3503ba9 | 582 | gid.field = field; |
47e5f13e MD |
583 | data_offset = bytecode_push_data(runtime, &gid, |
584 | __alignof__(gid), sizeof(gid)); | |
585 | if (data_offset < 0) { | |
586 | ret = -EINVAL; | |
587 | goto end; | |
588 | } | |
589 | ((struct get_index_u16 *) insn->data)->index = data_offset; | |
590 | ret = 0; | |
591 | end: | |
592 | free(name); | |
593 | return ret; | |
594 | } | |
595 | ||
53b9d7db | 596 | static int specialize_payload_lookup(const struct lttng_event_desc *event_desc, |
47e5f13e MD |
597 | struct bytecode_runtime *runtime, |
598 | struct load_op *insn, | |
599 | struct vstack_load *load) | |
600 | { | |
601 | const char *name; | |
602 | uint16_t offset; | |
47e5f13e MD |
603 | unsigned int i, nr_fields; |
604 | bool found = false; | |
605 | uint32_t field_offset = 0; | |
606 | const struct lttng_event_field *field; | |
607 | int ret; | |
04aa13f8 | 608 | struct bytecode_get_index_data gid; |
47e5f13e MD |
609 | ssize_t data_offset; |
610 | ||
53b9d7db | 611 | nr_fields = event_desc->nr_fields; |
47e5f13e | 612 | offset = ((struct get_symbol *) insn->data)->offset; |
362a65de | 613 | name = runtime->p.priv->bc->bc.data + runtime->p.priv->bc->bc.reloc_offset + offset; |
47e5f13e | 614 | for (i = 0; i < nr_fields; i++) { |
53b9d7db | 615 | field = &event_desc->fields[i]; |
218deb69 MD |
616 | if (field->u.ext.nofilter) { |
617 | continue; | |
618 | } | |
47e5f13e MD |
619 | if (!strcmp(field->name, name)) { |
620 | found = true; | |
621 | break; | |
622 | } | |
623 | /* compute field offset on stack */ | |
624 | switch (field->type.atype) { | |
625 | case atype_integer: | |
626 | case atype_enum: | |
218deb69 | 627 | case atype_enum_nestable: |
47e5f13e MD |
628 | field_offset += sizeof(int64_t); |
629 | break; | |
630 | case atype_array: | |
218deb69 | 631 | case atype_array_nestable: |
47e5f13e | 632 | case atype_sequence: |
218deb69 | 633 | case atype_sequence_nestable: |
47e5f13e MD |
634 | field_offset += sizeof(unsigned long); |
635 | field_offset += sizeof(void *); | |
636 | break; | |
637 | case atype_string: | |
638 | field_offset += sizeof(void *); | |
639 | break; | |
640 | case atype_float: | |
641 | field_offset += sizeof(double); | |
642 | break; | |
643 | default: | |
644 | ret = -EINVAL; | |
645 | goto end; | |
646 | } | |
647 | } | |
648 | if (!found) { | |
649 | ret = -EINVAL; | |
650 | goto end; | |
651 | } | |
652 | ||
653 | ret = specialize_load_object(field, load, false); | |
654 | if (ret) | |
655 | goto end; | |
656 | ||
657 | /* Specialize each get_symbol into a get_index. */ | |
04aa13f8 | 658 | insn->op = BYTECODE_OP_GET_INDEX_U16; |
47e5f13e MD |
659 | memset(&gid, 0, sizeof(gid)); |
660 | gid.offset = field_offset; | |
661 | gid.elem.type = load->object_type; | |
6bbd9df3 | 662 | gid.elem.rev_bo = load->rev_bo; |
f3503ba9 | 663 | gid.field = field; |
47e5f13e MD |
664 | data_offset = bytecode_push_data(runtime, &gid, |
665 | __alignof__(gid), sizeof(gid)); | |
666 | if (data_offset < 0) { | |
667 | ret = -EINVAL; | |
668 | goto end; | |
669 | } | |
670 | ((struct get_index_u16 *) insn->data)->index = data_offset; | |
671 | ret = 0; | |
672 | end: | |
673 | return ret; | |
674 | } | |
675 | ||
04aa13f8 | 676 | int lttng_bytecode_specialize(const struct lttng_event_desc *event_desc, |
47e5f13e | 677 | struct bytecode_runtime *bytecode) |
97b58163 MD |
678 | { |
679 | void *pc, *next_pc, *start_pc; | |
680 | int ret = -EINVAL; | |
0305960f MD |
681 | struct vstack _stack; |
682 | struct vstack *stack = &_stack; | |
362a65de | 683 | struct lttng_ctx **pctx = bytecode->p.priv->pctx; |
97b58163 | 684 | |
0305960f | 685 | vstack_init(stack); |
97b58163 | 686 | |
47e5f13e | 687 | start_pc = &bytecode->code[0]; |
97b58163 MD |
688 | for (pc = next_pc = start_pc; pc - start_pc < bytecode->len; |
689 | pc = next_pc) { | |
04aa13f8 FD |
690 | switch (*(bytecode_opcode_t *) pc) { |
691 | case BYTECODE_OP_UNKNOWN: | |
97b58163 MD |
692 | default: |
693 | ERR("unknown bytecode op %u\n", | |
04aa13f8 | 694 | (unsigned int) *(bytecode_opcode_t *) pc); |
97b58163 MD |
695 | ret = -EINVAL; |
696 | goto end; | |
697 | ||
04aa13f8 | 698 | case BYTECODE_OP_RETURN: |
d97f9b78 MD |
699 | if (vstack_ax(stack)->type == REG_S64 || |
700 | vstack_ax(stack)->type == REG_U64) | |
04aa13f8 | 701 | *(bytecode_opcode_t *) pc = BYTECODE_OP_RETURN_S64; |
93c591bb MD |
702 | ret = 0; |
703 | goto end; | |
704 | ||
04aa13f8 | 705 | case BYTECODE_OP_RETURN_S64: |
d97f9b78 MD |
706 | if (vstack_ax(stack)->type != REG_S64 && |
707 | vstack_ax(stack)->type != REG_U64) { | |
93c591bb MD |
708 | ERR("Unexpected register type\n"); |
709 | ret = -EINVAL; | |
710 | goto end; | |
711 | } | |
97b58163 MD |
712 | ret = 0; |
713 | goto end; | |
714 | ||
715 | /* binary */ | |
04aa13f8 FD |
716 | case BYTECODE_OP_MUL: |
717 | case BYTECODE_OP_DIV: | |
718 | case BYTECODE_OP_MOD: | |
719 | case BYTECODE_OP_PLUS: | |
720 | case BYTECODE_OP_MINUS: | |
97b58163 | 721 | ERR("unsupported bytecode op %u\n", |
04aa13f8 | 722 | (unsigned int) *(bytecode_opcode_t *) pc); |
97b58163 MD |
723 | ret = -EINVAL; |
724 | goto end; | |
725 | ||
04aa13f8 | 726 | case BYTECODE_OP_EQ: |
97b58163 MD |
727 | { |
728 | struct binary_op *insn = (struct binary_op *) pc; | |
729 | ||
0305960f | 730 | switch(vstack_ax(stack)->type) { |
97b58163 MD |
731 | default: |
732 | ERR("unknown register type\n"); | |
733 | ret = -EINVAL; | |
734 | goto end; | |
735 | ||
736 | case REG_STRING: | |
53569322 MD |
737 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
738 | break; | |
3151a51d | 739 | if (vstack_bx(stack)->type == REG_STAR_GLOB_STRING) |
04aa13f8 | 740 | insn->op = BYTECODE_OP_EQ_STAR_GLOB_STRING; |
3151a51d | 741 | else |
04aa13f8 | 742 | insn->op = BYTECODE_OP_EQ_STRING; |
3151a51d PP |
743 | break; |
744 | case REG_STAR_GLOB_STRING: | |
745 | if (vstack_bx(stack)->type == REG_UNKNOWN) | |
746 | break; | |
04aa13f8 | 747 | insn->op = BYTECODE_OP_EQ_STAR_GLOB_STRING; |
97b58163 MD |
748 | break; |
749 | case REG_S64: | |
d97f9b78 | 750 | case REG_U64: |
53569322 MD |
751 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
752 | break; | |
d97f9b78 MD |
753 | if (vstack_bx(stack)->type == REG_S64 || |
754 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 755 | insn->op = BYTECODE_OP_EQ_S64; |
97b58163 | 756 | else |
04aa13f8 | 757 | insn->op = BYTECODE_OP_EQ_DOUBLE_S64; |
97b58163 MD |
758 | break; |
759 | case REG_DOUBLE: | |
53569322 MD |
760 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
761 | break; | |
d97f9b78 MD |
762 | if (vstack_bx(stack)->type == REG_S64 || |
763 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 764 | insn->op = BYTECODE_OP_EQ_S64_DOUBLE; |
dbea82ec | 765 | else |
04aa13f8 | 766 | insn->op = BYTECODE_OP_EQ_DOUBLE; |
97b58163 | 767 | break; |
53569322 MD |
768 | case REG_UNKNOWN: |
769 | break; /* Dynamic typing. */ | |
97b58163 | 770 | } |
0305960f MD |
771 | /* Pop 2, push 1 */ |
772 | if (vstack_pop(stack)) { | |
773 | ret = -EINVAL; | |
774 | goto end; | |
775 | } | |
776 | vstack_ax(stack)->type = REG_S64; | |
97b58163 MD |
777 | next_pc += sizeof(struct binary_op); |
778 | break; | |
779 | } | |
780 | ||
04aa13f8 | 781 | case BYTECODE_OP_NE: |
97b58163 MD |
782 | { |
783 | struct binary_op *insn = (struct binary_op *) pc; | |
784 | ||
0305960f | 785 | switch(vstack_ax(stack)->type) { |
97b58163 MD |
786 | default: |
787 | ERR("unknown register type\n"); | |
788 | ret = -EINVAL; | |
789 | goto end; | |
790 | ||
791 | case REG_STRING: | |
53569322 MD |
792 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
793 | break; | |
3151a51d | 794 | if (vstack_bx(stack)->type == REG_STAR_GLOB_STRING) |
04aa13f8 | 795 | insn->op = BYTECODE_OP_NE_STAR_GLOB_STRING; |
3151a51d | 796 | else |
04aa13f8 | 797 | insn->op = BYTECODE_OP_NE_STRING; |
3151a51d PP |
798 | break; |
799 | case REG_STAR_GLOB_STRING: | |
800 | if (vstack_bx(stack)->type == REG_UNKNOWN) | |
801 | break; | |
04aa13f8 | 802 | insn->op = BYTECODE_OP_NE_STAR_GLOB_STRING; |
97b58163 MD |
803 | break; |
804 | case REG_S64: | |
d97f9b78 | 805 | case REG_U64: |
53569322 MD |
806 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
807 | break; | |
d97f9b78 MD |
808 | if (vstack_bx(stack)->type == REG_S64 || |
809 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 810 | insn->op = BYTECODE_OP_NE_S64; |
97b58163 | 811 | else |
04aa13f8 | 812 | insn->op = BYTECODE_OP_NE_DOUBLE_S64; |
97b58163 MD |
813 | break; |
814 | case REG_DOUBLE: | |
53569322 MD |
815 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
816 | break; | |
d97f9b78 MD |
817 | if (vstack_bx(stack)->type == REG_S64 || |
818 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 819 | insn->op = BYTECODE_OP_NE_S64_DOUBLE; |
dbea82ec | 820 | else |
04aa13f8 | 821 | insn->op = BYTECODE_OP_NE_DOUBLE; |
97b58163 | 822 | break; |
53569322 MD |
823 | case REG_UNKNOWN: |
824 | break; /* Dynamic typing. */ | |
97b58163 | 825 | } |
0305960f MD |
826 | /* Pop 2, push 1 */ |
827 | if (vstack_pop(stack)) { | |
828 | ret = -EINVAL; | |
829 | goto end; | |
830 | } | |
831 | vstack_ax(stack)->type = REG_S64; | |
97b58163 MD |
832 | next_pc += sizeof(struct binary_op); |
833 | break; | |
834 | } | |
835 | ||
04aa13f8 | 836 | case BYTECODE_OP_GT: |
97b58163 MD |
837 | { |
838 | struct binary_op *insn = (struct binary_op *) pc; | |
839 | ||
0305960f | 840 | switch(vstack_ax(stack)->type) { |
97b58163 MD |
841 | default: |
842 | ERR("unknown register type\n"); | |
843 | ret = -EINVAL; | |
844 | goto end; | |
845 | ||
3151a51d PP |
846 | case REG_STAR_GLOB_STRING: |
847 | ERR("invalid register type for > binary operator\n"); | |
848 | ret = -EINVAL; | |
849 | goto end; | |
97b58163 | 850 | case REG_STRING: |
53569322 MD |
851 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
852 | break; | |
04aa13f8 | 853 | insn->op = BYTECODE_OP_GT_STRING; |
97b58163 MD |
854 | break; |
855 | case REG_S64: | |
d97f9b78 | 856 | case REG_U64: |
53569322 MD |
857 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
858 | break; | |
d97f9b78 MD |
859 | if (vstack_bx(stack)->type == REG_S64 || |
860 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 861 | insn->op = BYTECODE_OP_GT_S64; |
97b58163 | 862 | else |
04aa13f8 | 863 | insn->op = BYTECODE_OP_GT_DOUBLE_S64; |
97b58163 MD |
864 | break; |
865 | case REG_DOUBLE: | |
53569322 MD |
866 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
867 | break; | |
d97f9b78 MD |
868 | if (vstack_bx(stack)->type == REG_S64 || |
869 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 870 | insn->op = BYTECODE_OP_GT_S64_DOUBLE; |
dbea82ec | 871 | else |
04aa13f8 | 872 | insn->op = BYTECODE_OP_GT_DOUBLE; |
97b58163 | 873 | break; |
53569322 MD |
874 | case REG_UNKNOWN: |
875 | break; /* Dynamic typing. */ | |
97b58163 | 876 | } |
0305960f MD |
877 | /* Pop 2, push 1 */ |
878 | if (vstack_pop(stack)) { | |
879 | ret = -EINVAL; | |
880 | goto end; | |
881 | } | |
882 | vstack_ax(stack)->type = REG_S64; | |
97b58163 MD |
883 | next_pc += sizeof(struct binary_op); |
884 | break; | |
885 | } | |
886 | ||
04aa13f8 | 887 | case BYTECODE_OP_LT: |
97b58163 MD |
888 | { |
889 | struct binary_op *insn = (struct binary_op *) pc; | |
890 | ||
0305960f | 891 | switch(vstack_ax(stack)->type) { |
97b58163 MD |
892 | default: |
893 | ERR("unknown register type\n"); | |
894 | ret = -EINVAL; | |
895 | goto end; | |
896 | ||
3151a51d PP |
897 | case REG_STAR_GLOB_STRING: |
898 | ERR("invalid register type for < binary operator\n"); | |
899 | ret = -EINVAL; | |
900 | goto end; | |
97b58163 | 901 | case REG_STRING: |
53569322 MD |
902 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
903 | break; | |
04aa13f8 | 904 | insn->op = BYTECODE_OP_LT_STRING; |
97b58163 MD |
905 | break; |
906 | case REG_S64: | |
d97f9b78 | 907 | case REG_U64: |
53569322 MD |
908 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
909 | break; | |
d97f9b78 MD |
910 | if (vstack_bx(stack)->type == REG_S64 || |
911 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 912 | insn->op = BYTECODE_OP_LT_S64; |
97b58163 | 913 | else |
04aa13f8 | 914 | insn->op = BYTECODE_OP_LT_DOUBLE_S64; |
97b58163 MD |
915 | break; |
916 | case REG_DOUBLE: | |
53569322 MD |
917 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
918 | break; | |
d97f9b78 MD |
919 | if (vstack_bx(stack)->type == REG_S64 || |
920 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 921 | insn->op = BYTECODE_OP_LT_S64_DOUBLE; |
dbea82ec | 922 | else |
04aa13f8 | 923 | insn->op = BYTECODE_OP_LT_DOUBLE; |
97b58163 | 924 | break; |
53569322 MD |
925 | case REG_UNKNOWN: |
926 | break; /* Dynamic typing. */ | |
97b58163 | 927 | } |
0305960f MD |
928 | /* Pop 2, push 1 */ |
929 | if (vstack_pop(stack)) { | |
930 | ret = -EINVAL; | |
931 | goto end; | |
932 | } | |
933 | vstack_ax(stack)->type = REG_S64; | |
97b58163 MD |
934 | next_pc += sizeof(struct binary_op); |
935 | break; | |
936 | } | |
937 | ||
04aa13f8 | 938 | case BYTECODE_OP_GE: |
97b58163 MD |
939 | { |
940 | struct binary_op *insn = (struct binary_op *) pc; | |
941 | ||
0305960f | 942 | switch(vstack_ax(stack)->type) { |
97b58163 MD |
943 | default: |
944 | ERR("unknown register type\n"); | |
945 | ret = -EINVAL; | |
946 | goto end; | |
947 | ||
3151a51d PP |
948 | case REG_STAR_GLOB_STRING: |
949 | ERR("invalid register type for >= binary operator\n"); | |
950 | ret = -EINVAL; | |
951 | goto end; | |
97b58163 | 952 | case REG_STRING: |
53569322 MD |
953 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
954 | break; | |
04aa13f8 | 955 | insn->op = BYTECODE_OP_GE_STRING; |
97b58163 MD |
956 | break; |
957 | case REG_S64: | |
d97f9b78 | 958 | case REG_U64: |
53569322 MD |
959 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
960 | break; | |
d97f9b78 MD |
961 | if (vstack_bx(stack)->type == REG_S64 || |
962 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 963 | insn->op = BYTECODE_OP_GE_S64; |
97b58163 | 964 | else |
04aa13f8 | 965 | insn->op = BYTECODE_OP_GE_DOUBLE_S64; |
97b58163 MD |
966 | break; |
967 | case REG_DOUBLE: | |
53569322 MD |
968 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
969 | break; | |
d97f9b78 MD |
970 | if (vstack_bx(stack)->type == REG_S64 || |
971 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 972 | insn->op = BYTECODE_OP_GE_S64_DOUBLE; |
dbea82ec | 973 | else |
04aa13f8 | 974 | insn->op = BYTECODE_OP_GE_DOUBLE; |
97b58163 | 975 | break; |
53569322 MD |
976 | case REG_UNKNOWN: |
977 | break; /* Dynamic typing. */ | |
97b58163 | 978 | } |
0305960f MD |
979 | /* Pop 2, push 1 */ |
980 | if (vstack_pop(stack)) { | |
981 | ret = -EINVAL; | |
982 | goto end; | |
983 | } | |
d97f9b78 | 984 | vstack_ax(stack)->type = REG_U64; |
97b58163 MD |
985 | next_pc += sizeof(struct binary_op); |
986 | break; | |
987 | } | |
04aa13f8 | 988 | case BYTECODE_OP_LE: |
97b58163 MD |
989 | { |
990 | struct binary_op *insn = (struct binary_op *) pc; | |
991 | ||
0305960f | 992 | switch(vstack_ax(stack)->type) { |
97b58163 MD |
993 | default: |
994 | ERR("unknown register type\n"); | |
995 | ret = -EINVAL; | |
996 | goto end; | |
997 | ||
3151a51d PP |
998 | case REG_STAR_GLOB_STRING: |
999 | ERR("invalid register type for <= binary operator\n"); | |
1000 | ret = -EINVAL; | |
1001 | goto end; | |
97b58163 | 1002 | case REG_STRING: |
53569322 MD |
1003 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
1004 | break; | |
04aa13f8 | 1005 | insn->op = BYTECODE_OP_LE_STRING; |
97b58163 MD |
1006 | break; |
1007 | case REG_S64: | |
d97f9b78 | 1008 | case REG_U64: |
53569322 MD |
1009 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
1010 | break; | |
d97f9b78 MD |
1011 | if (vstack_bx(stack)->type == REG_S64 || |
1012 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 1013 | insn->op = BYTECODE_OP_LE_S64; |
97b58163 | 1014 | else |
04aa13f8 | 1015 | insn->op = BYTECODE_OP_LE_DOUBLE_S64; |
97b58163 MD |
1016 | break; |
1017 | case REG_DOUBLE: | |
53569322 MD |
1018 | if (vstack_bx(stack)->type == REG_UNKNOWN) |
1019 | break; | |
d97f9b78 MD |
1020 | if (vstack_bx(stack)->type == REG_S64 || |
1021 | vstack_bx(stack)->type == REG_U64) | |
04aa13f8 | 1022 | insn->op = BYTECODE_OP_LE_S64_DOUBLE; |
dbea82ec | 1023 | else |
04aa13f8 | 1024 | insn->op = BYTECODE_OP_LE_DOUBLE; |
97b58163 | 1025 | break; |
53569322 MD |
1026 | case REG_UNKNOWN: |
1027 | break; /* Dynamic typing. */ | |
97b58163 | 1028 | } |
0305960f | 1029 | vstack_ax(stack)->type = REG_S64; |
97b58163 MD |
1030 | next_pc += sizeof(struct binary_op); |
1031 | break; | |
1032 | } | |
1033 | ||
04aa13f8 FD |
1034 | case BYTECODE_OP_EQ_STRING: |
1035 | case BYTECODE_OP_NE_STRING: | |
1036 | case BYTECODE_OP_GT_STRING: | |
1037 | case BYTECODE_OP_LT_STRING: | |
1038 | case BYTECODE_OP_GE_STRING: | |
1039 | case BYTECODE_OP_LE_STRING: | |
1040 | case BYTECODE_OP_EQ_STAR_GLOB_STRING: | |
1041 | case BYTECODE_OP_NE_STAR_GLOB_STRING: | |
1042 | case BYTECODE_OP_EQ_S64: | |
1043 | case BYTECODE_OP_NE_S64: | |
1044 | case BYTECODE_OP_GT_S64: | |
1045 | case BYTECODE_OP_LT_S64: | |
1046 | case BYTECODE_OP_GE_S64: | |
1047 | case BYTECODE_OP_LE_S64: | |
1048 | case BYTECODE_OP_EQ_DOUBLE: | |
1049 | case BYTECODE_OP_NE_DOUBLE: | |
1050 | case BYTECODE_OP_GT_DOUBLE: | |
1051 | case BYTECODE_OP_LT_DOUBLE: | |
1052 | case BYTECODE_OP_GE_DOUBLE: | |
1053 | case BYTECODE_OP_LE_DOUBLE: | |
1054 | case BYTECODE_OP_EQ_DOUBLE_S64: | |
1055 | case BYTECODE_OP_NE_DOUBLE_S64: | |
1056 | case BYTECODE_OP_GT_DOUBLE_S64: | |
1057 | case BYTECODE_OP_LT_DOUBLE_S64: | |
1058 | case BYTECODE_OP_GE_DOUBLE_S64: | |
1059 | case BYTECODE_OP_LE_DOUBLE_S64: | |
1060 | case BYTECODE_OP_EQ_S64_DOUBLE: | |
1061 | case BYTECODE_OP_NE_S64_DOUBLE: | |
1062 | case BYTECODE_OP_GT_S64_DOUBLE: | |
1063 | case BYTECODE_OP_LT_S64_DOUBLE: | |
1064 | case BYTECODE_OP_GE_S64_DOUBLE: | |
1065 | case BYTECODE_OP_LE_S64_DOUBLE: | |
d97f9b78 MD |
1066 | { |
1067 | /* Pop 2, push 1 */ | |
1068 | if (vstack_pop(stack)) { | |
1069 | ret = -EINVAL; | |
1070 | goto end; | |
1071 | } | |
1072 | vstack_ax(stack)->type = REG_S64; | |
1073 | next_pc += sizeof(struct binary_op); | |
1074 | break; | |
1075 | } | |
1076 | ||
04aa13f8 FD |
1077 | case BYTECODE_OP_BIT_RSHIFT: |
1078 | case BYTECODE_OP_BIT_LSHIFT: | |
1079 | case BYTECODE_OP_BIT_AND: | |
1080 | case BYTECODE_OP_BIT_OR: | |
1081 | case BYTECODE_OP_BIT_XOR: | |
97b58163 | 1082 | { |
0305960f MD |
1083 | /* Pop 2, push 1 */ |
1084 | if (vstack_pop(stack)) { | |
1085 | ret = -EINVAL; | |
1086 | goto end; | |
1087 | } | |
1088 | vstack_ax(stack)->type = REG_S64; | |
97b58163 MD |
1089 | next_pc += sizeof(struct binary_op); |
1090 | break; | |
1091 | } | |
1092 | ||
1093 | /* unary */ | |
04aa13f8 | 1094 | case BYTECODE_OP_UNARY_PLUS: |
97b58163 MD |
1095 | { |
1096 | struct unary_op *insn = (struct unary_op *) pc; | |
1097 | ||
0305960f | 1098 | switch(vstack_ax(stack)->type) { |
97b58163 MD |
1099 | default: |
1100 | ERR("unknown register type\n"); | |
1101 | ret = -EINVAL; | |
1102 | goto end; | |
1103 | ||
1104 | case REG_S64: | |
d97f9b78 | 1105 | case REG_U64: |
04aa13f8 | 1106 | insn->op = BYTECODE_OP_UNARY_PLUS_S64; |
97b58163 MD |
1107 | break; |
1108 | case REG_DOUBLE: | |
04aa13f8 | 1109 | insn->op = BYTECODE_OP_UNARY_PLUS_DOUBLE; |
97b58163 | 1110 | break; |
53569322 MD |
1111 | case REG_UNKNOWN: /* Dynamic typing. */ |
1112 | break; | |
97b58163 | 1113 | } |
0305960f | 1114 | /* Pop 1, push 1 */ |
97b58163 MD |
1115 | next_pc += sizeof(struct unary_op); |
1116 | break; | |
1117 | } | |
1118 | ||
04aa13f8 | 1119 | case BYTECODE_OP_UNARY_MINUS: |
97b58163 MD |
1120 | { |
1121 | struct unary_op *insn = (struct unary_op *) pc; | |
1122 | ||
0305960f | 1123 | switch(vstack_ax(stack)->type) { |
97b58163 MD |
1124 | default: |
1125 | ERR("unknown register type\n"); | |
1126 | ret = -EINVAL; | |
1127 | goto end; | |
1128 | ||
1129 | case REG_S64: | |
d97f9b78 | 1130 | case REG_U64: |
04aa13f8 | 1131 | insn->op = BYTECODE_OP_UNARY_MINUS_S64; |
97b58163 MD |
1132 | break; |
1133 | case REG_DOUBLE: | |
04aa13f8 | 1134 | insn->op = BYTECODE_OP_UNARY_MINUS_DOUBLE; |
97b58163 | 1135 | break; |
53569322 MD |
1136 | case REG_UNKNOWN: /* Dynamic typing. */ |
1137 | break; | |
97b58163 | 1138 | } |
0305960f | 1139 | /* Pop 1, push 1 */ |
97b58163 MD |
1140 | next_pc += sizeof(struct unary_op); |
1141 | break; | |
1142 | } | |
1143 | ||
04aa13f8 | 1144 | case BYTECODE_OP_UNARY_NOT: |
97b58163 MD |
1145 | { |
1146 | struct unary_op *insn = (struct unary_op *) pc; | |
1147 | ||
0305960f | 1148 | switch(vstack_ax(stack)->type) { |
97b58163 MD |
1149 | default: |
1150 | ERR("unknown register type\n"); | |
1151 | ret = -EINVAL; | |
1152 | goto end; | |
1153 | ||
1154 | case REG_S64: | |
d97f9b78 | 1155 | case REG_U64: |
04aa13f8 | 1156 | insn->op = BYTECODE_OP_UNARY_NOT_S64; |
97b58163 MD |
1157 | break; |
1158 | case REG_DOUBLE: | |
04aa13f8 | 1159 | insn->op = BYTECODE_OP_UNARY_NOT_DOUBLE; |
97b58163 | 1160 | break; |
53569322 MD |
1161 | case REG_UNKNOWN: /* Dynamic typing. */ |
1162 | break; | |
97b58163 | 1163 | } |
0305960f | 1164 | /* Pop 1, push 1 */ |
97b58163 MD |
1165 | next_pc += sizeof(struct unary_op); |
1166 | break; | |
1167 | } | |
1168 | ||
04aa13f8 | 1169 | case BYTECODE_OP_UNARY_BIT_NOT: |
0039e2d8 MD |
1170 | { |
1171 | /* Pop 1, push 1 */ | |
1172 | next_pc += sizeof(struct unary_op); | |
1173 | break; | |
1174 | } | |
1175 | ||
04aa13f8 FD |
1176 | case BYTECODE_OP_UNARY_PLUS_S64: |
1177 | case BYTECODE_OP_UNARY_MINUS_S64: | |
1178 | case BYTECODE_OP_UNARY_NOT_S64: | |
1179 | case BYTECODE_OP_UNARY_PLUS_DOUBLE: | |
1180 | case BYTECODE_OP_UNARY_MINUS_DOUBLE: | |
1181 | case BYTECODE_OP_UNARY_NOT_DOUBLE: | |
97b58163 | 1182 | { |
0305960f | 1183 | /* Pop 1, push 1 */ |
97b58163 MD |
1184 | next_pc += sizeof(struct unary_op); |
1185 | break; | |
1186 | } | |
1187 | ||
1188 | /* logical */ | |
04aa13f8 FD |
1189 | case BYTECODE_OP_AND: |
1190 | case BYTECODE_OP_OR: | |
97b58163 | 1191 | { |
b9f4cd79 MD |
1192 | /* Continue to next instruction */ |
1193 | /* Pop 1 when jump not taken */ | |
1194 | if (vstack_pop(stack)) { | |
1195 | ret = -EINVAL; | |
1196 | goto end; | |
1197 | } | |
97b58163 MD |
1198 | next_pc += sizeof(struct logical_op); |
1199 | break; | |
1200 | } | |
1201 | ||
77aa5901 | 1202 | /* load field ref */ |
04aa13f8 | 1203 | case BYTECODE_OP_LOAD_FIELD_REF: |
97b58163 MD |
1204 | { |
1205 | ERR("Unknown field ref type\n"); | |
1206 | ret = -EINVAL; | |
1207 | goto end; | |
1208 | } | |
77aa5901 | 1209 | /* get context ref */ |
04aa13f8 | 1210 | case BYTECODE_OP_GET_CONTEXT_REF: |
77aa5901 | 1211 | { |
53569322 MD |
1212 | if (vstack_push(stack)) { |
1213 | ret = -EINVAL; | |
1214 | goto end; | |
1215 | } | |
1216 | vstack_ax(stack)->type = REG_UNKNOWN; | |
1217 | next_pc += sizeof(struct load_op) + sizeof(struct field_ref); | |
1218 | break; | |
77aa5901 | 1219 | } |
04aa13f8 FD |
1220 | case BYTECODE_OP_LOAD_FIELD_REF_STRING: |
1221 | case BYTECODE_OP_LOAD_FIELD_REF_SEQUENCE: | |
1222 | case BYTECODE_OP_GET_CONTEXT_REF_STRING: | |
97b58163 | 1223 | { |
0305960f MD |
1224 | if (vstack_push(stack)) { |
1225 | ret = -EINVAL; | |
1226 | goto end; | |
1227 | } | |
1228 | vstack_ax(stack)->type = REG_STRING; | |
97b58163 MD |
1229 | next_pc += sizeof(struct load_op) + sizeof(struct field_ref); |
1230 | break; | |
1231 | } | |
04aa13f8 FD |
1232 | case BYTECODE_OP_LOAD_FIELD_REF_S64: |
1233 | case BYTECODE_OP_GET_CONTEXT_REF_S64: | |
97b58163 | 1234 | { |
0305960f MD |
1235 | if (vstack_push(stack)) { |
1236 | ret = -EINVAL; | |
1237 | goto end; | |
1238 | } | |
1239 | vstack_ax(stack)->type = REG_S64; | |
97b58163 MD |
1240 | next_pc += sizeof(struct load_op) + sizeof(struct field_ref); |
1241 | break; | |
1242 | } | |
04aa13f8 FD |
1243 | case BYTECODE_OP_LOAD_FIELD_REF_DOUBLE: |
1244 | case BYTECODE_OP_GET_CONTEXT_REF_DOUBLE: | |
97b58163 | 1245 | { |
0305960f MD |
1246 | if (vstack_push(stack)) { |
1247 | ret = -EINVAL; | |
1248 | goto end; | |
1249 | } | |
1250 | vstack_ax(stack)->type = REG_DOUBLE; | |
97b58163 MD |
1251 | next_pc += sizeof(struct load_op) + sizeof(struct field_ref); |
1252 | break; | |
1253 | } | |
1254 | ||
77aa5901 | 1255 | /* load from immediate operand */ |
04aa13f8 | 1256 | case BYTECODE_OP_LOAD_STRING: |
97b58163 MD |
1257 | { |
1258 | struct load_op *insn = (struct load_op *) pc; | |
1259 | ||
0305960f MD |
1260 | if (vstack_push(stack)) { |
1261 | ret = -EINVAL; | |
1262 | goto end; | |
1263 | } | |
1264 | vstack_ax(stack)->type = REG_STRING; | |
97b58163 MD |
1265 | next_pc += sizeof(struct load_op) + strlen(insn->data) + 1; |
1266 | break; | |
1267 | } | |
1268 | ||
04aa13f8 | 1269 | case BYTECODE_OP_LOAD_STAR_GLOB_STRING: |
3151a51d PP |
1270 | { |
1271 | struct load_op *insn = (struct load_op *) pc; | |
1272 | ||
1273 | if (vstack_push(stack)) { | |
1274 | ret = -EINVAL; | |
1275 | goto end; | |
1276 | } | |
1277 | vstack_ax(stack)->type = REG_STAR_GLOB_STRING; | |
1278 | next_pc += sizeof(struct load_op) + strlen(insn->data) + 1; | |
1279 | break; | |
1280 | } | |
1281 | ||
04aa13f8 | 1282 | case BYTECODE_OP_LOAD_S64: |
97b58163 | 1283 | { |
0305960f MD |
1284 | if (vstack_push(stack)) { |
1285 | ret = -EINVAL; | |
1286 | goto end; | |
1287 | } | |
1288 | vstack_ax(stack)->type = REG_S64; | |
97b58163 MD |
1289 | next_pc += sizeof(struct load_op) |
1290 | + sizeof(struct literal_numeric); | |
1291 | break; | |
1292 | } | |
1293 | ||
04aa13f8 | 1294 | case BYTECODE_OP_LOAD_DOUBLE: |
97b58163 | 1295 | { |
0305960f MD |
1296 | if (vstack_push(stack)) { |
1297 | ret = -EINVAL; | |
1298 | goto end; | |
1299 | } | |
1300 | vstack_ax(stack)->type = REG_DOUBLE; | |
97b58163 MD |
1301 | next_pc += sizeof(struct load_op) |
1302 | + sizeof(struct literal_double); | |
1303 | break; | |
1304 | } | |
1305 | ||
1306 | /* cast */ | |
04aa13f8 | 1307 | case BYTECODE_OP_CAST_TO_S64: |
97b58163 MD |
1308 | { |
1309 | struct cast_op *insn = (struct cast_op *) pc; | |
1310 | ||
0305960f | 1311 | switch (vstack_ax(stack)->type) { |
97b58163 MD |
1312 | default: |
1313 | ERR("unknown register type\n"); | |
1314 | ret = -EINVAL; | |
1315 | goto end; | |
1316 | ||
1317 | case REG_STRING: | |
3151a51d | 1318 | case REG_STAR_GLOB_STRING: |
97b58163 MD |
1319 | ERR("Cast op can only be applied to numeric or floating point registers\n"); |
1320 | ret = -EINVAL; | |
1321 | goto end; | |
1322 | case REG_S64: | |
04aa13f8 | 1323 | insn->op = BYTECODE_OP_CAST_NOP; |
97b58163 MD |
1324 | break; |
1325 | case REG_DOUBLE: | |
04aa13f8 | 1326 | insn->op = BYTECODE_OP_CAST_DOUBLE_TO_S64; |
97b58163 | 1327 | break; |
53569322 | 1328 | case REG_UNKNOWN: |
d97f9b78 | 1329 | case REG_U64: |
53569322 | 1330 | break; |
97b58163 | 1331 | } |
0305960f MD |
1332 | /* Pop 1, push 1 */ |
1333 | vstack_ax(stack)->type = REG_S64; | |
97b58163 MD |
1334 | next_pc += sizeof(struct cast_op); |
1335 | break; | |
1336 | } | |
04aa13f8 | 1337 | case BYTECODE_OP_CAST_DOUBLE_TO_S64: |
97b58163 | 1338 | { |
0305960f MD |
1339 | /* Pop 1, push 1 */ |
1340 | vstack_ax(stack)->type = REG_S64; | |
97b58163 MD |
1341 | next_pc += sizeof(struct cast_op); |
1342 | break; | |
1343 | } | |
04aa13f8 | 1344 | case BYTECODE_OP_CAST_NOP: |
97b58163 MD |
1345 | { |
1346 | next_pc += sizeof(struct cast_op); | |
1347 | break; | |
1348 | } | |
1349 | ||
47e5f13e MD |
1350 | /* |
1351 | * Instructions for recursive traversal through composed types. | |
1352 | */ | |
04aa13f8 | 1353 | case BYTECODE_OP_GET_CONTEXT_ROOT: |
47e5f13e MD |
1354 | { |
1355 | if (vstack_push(stack)) { | |
1356 | ret = -EINVAL; | |
1357 | goto end; | |
1358 | } | |
1359 | vstack_ax(stack)->type = REG_PTR; | |
1360 | vstack_ax(stack)->load.type = LOAD_ROOT_CONTEXT; | |
1361 | next_pc += sizeof(struct load_op); | |
1362 | break; | |
1363 | } | |
04aa13f8 | 1364 | case BYTECODE_OP_GET_APP_CONTEXT_ROOT: |
47e5f13e MD |
1365 | { |
1366 | if (vstack_push(stack)) { | |
1367 | ret = -EINVAL; | |
1368 | goto end; | |
1369 | } | |
1370 | vstack_ax(stack)->type = REG_PTR; | |
1371 | vstack_ax(stack)->load.type = LOAD_ROOT_APP_CONTEXT; | |
1372 | next_pc += sizeof(struct load_op); | |
1373 | break; | |
1374 | } | |
04aa13f8 | 1375 | case BYTECODE_OP_GET_PAYLOAD_ROOT: |
47e5f13e MD |
1376 | { |
1377 | if (vstack_push(stack)) { | |
1378 | ret = -EINVAL; | |
1379 | goto end; | |
1380 | } | |
1381 | vstack_ax(stack)->type = REG_PTR; | |
1382 | vstack_ax(stack)->load.type = LOAD_ROOT_PAYLOAD; | |
1383 | next_pc += sizeof(struct load_op); | |
1384 | break; | |
1385 | } | |
1386 | ||
04aa13f8 | 1387 | case BYTECODE_OP_LOAD_FIELD: |
47e5f13e MD |
1388 | { |
1389 | struct load_op *insn = (struct load_op *) pc; | |
1390 | ||
1391 | assert(vstack_ax(stack)->type == REG_PTR); | |
1392 | /* Pop 1, push 1 */ | |
1393 | ret = specialize_load_field(vstack_ax(stack), insn); | |
1394 | if (ret) | |
1395 | goto end; | |
1396 | ||
1397 | next_pc += sizeof(struct load_op); | |
1398 | break; | |
1399 | } | |
1400 | ||
04aa13f8 FD |
1401 | case BYTECODE_OP_LOAD_FIELD_S8: |
1402 | case BYTECODE_OP_LOAD_FIELD_S16: | |
1403 | case BYTECODE_OP_LOAD_FIELD_S32: | |
1404 | case BYTECODE_OP_LOAD_FIELD_S64: | |
d97f9b78 MD |
1405 | { |
1406 | /* Pop 1, push 1 */ | |
1407 | vstack_ax(stack)->type = REG_S64; | |
1408 | next_pc += sizeof(struct load_op); | |
1409 | break; | |
1410 | } | |
1411 | ||
04aa13f8 FD |
1412 | case BYTECODE_OP_LOAD_FIELD_U8: |
1413 | case BYTECODE_OP_LOAD_FIELD_U16: | |
1414 | case BYTECODE_OP_LOAD_FIELD_U32: | |
1415 | case BYTECODE_OP_LOAD_FIELD_U64: | |
47e5f13e MD |
1416 | { |
1417 | /* Pop 1, push 1 */ | |
d97f9b78 | 1418 | vstack_ax(stack)->type = REG_U64; |
47e5f13e MD |
1419 | next_pc += sizeof(struct load_op); |
1420 | break; | |
1421 | } | |
1422 | ||
04aa13f8 FD |
1423 | case BYTECODE_OP_LOAD_FIELD_STRING: |
1424 | case BYTECODE_OP_LOAD_FIELD_SEQUENCE: | |
47e5f13e MD |
1425 | { |
1426 | /* Pop 1, push 1 */ | |
1427 | vstack_ax(stack)->type = REG_STRING; | |
1428 | next_pc += sizeof(struct load_op); | |
1429 | break; | |
1430 | } | |
1431 | ||
04aa13f8 | 1432 | case BYTECODE_OP_LOAD_FIELD_DOUBLE: |
47e5f13e MD |
1433 | { |
1434 | /* Pop 1, push 1 */ | |
1435 | vstack_ax(stack)->type = REG_DOUBLE; | |
1436 | next_pc += sizeof(struct load_op); | |
1437 | break; | |
1438 | } | |
1439 | ||
04aa13f8 | 1440 | case BYTECODE_OP_GET_SYMBOL: |
47e5f13e MD |
1441 | { |
1442 | struct load_op *insn = (struct load_op *) pc; | |
1443 | ||
1444 | dbg_printf("op get symbol\n"); | |
1445 | switch (vstack_ax(stack)->load.type) { | |
1446 | case LOAD_OBJECT: | |
1447 | ERR("Nested fields not implemented yet."); | |
1448 | ret = -EINVAL; | |
1449 | goto end; | |
1450 | case LOAD_ROOT_CONTEXT: | |
1451 | /* Lookup context field. */ | |
b77aaa1b | 1452 | ret = specialize_context_lookup(*pctx, |
47e5f13e MD |
1453 | bytecode, insn, |
1454 | &vstack_ax(stack)->load); | |
1455 | if (ret) | |
1456 | goto end; | |
1457 | break; | |
1458 | case LOAD_ROOT_APP_CONTEXT: | |
1459 | /* Lookup app context field. */ | |
b77aaa1b | 1460 | ret = specialize_app_context_lookup(pctx, |
47e5f13e MD |
1461 | bytecode, insn, |
1462 | &vstack_ax(stack)->load); | |
1463 | if (ret) | |
1464 | goto end; | |
1465 | break; | |
1466 | case LOAD_ROOT_PAYLOAD: | |
1467 | /* Lookup event payload field. */ | |
53b9d7db | 1468 | ret = specialize_payload_lookup(event_desc, |
47e5f13e MD |
1469 | bytecode, insn, |
1470 | &vstack_ax(stack)->load); | |
1471 | if (ret) | |
1472 | goto end; | |
1473 | break; | |
1474 | } | |
1475 | next_pc += sizeof(struct load_op) + sizeof(struct get_symbol); | |
1476 | break; | |
1477 | } | |
1478 | ||
04aa13f8 | 1479 | case BYTECODE_OP_GET_SYMBOL_FIELD: |
47e5f13e MD |
1480 | { |
1481 | /* Always generated by specialize phase. */ | |
1482 | ret = -EINVAL; | |
1483 | goto end; | |
1484 | } | |
1485 | ||
04aa13f8 | 1486 | case BYTECODE_OP_GET_INDEX_U16: |
47e5f13e MD |
1487 | { |
1488 | struct load_op *insn = (struct load_op *) pc; | |
1489 | struct get_index_u16 *index = (struct get_index_u16 *) insn->data; | |
1490 | ||
1491 | dbg_printf("op get index u16\n"); | |
1492 | /* Pop 1, push 1 */ | |
1493 | ret = specialize_get_index(bytecode, insn, index->index, | |
1494 | vstack_ax(stack), sizeof(*index)); | |
1495 | if (ret) | |
1496 | goto end; | |
1497 | next_pc += sizeof(struct load_op) + sizeof(struct get_index_u16); | |
1498 | break; | |
1499 | } | |
1500 | ||
04aa13f8 | 1501 | case BYTECODE_OP_GET_INDEX_U64: |
47e5f13e MD |
1502 | { |
1503 | struct load_op *insn = (struct load_op *) pc; | |
1504 | struct get_index_u64 *index = (struct get_index_u64 *) insn->data; | |
1505 | ||
1506 | dbg_printf("op get index u64\n"); | |
1507 | /* Pop 1, push 1 */ | |
1508 | ret = specialize_get_index(bytecode, insn, index->index, | |
1509 | vstack_ax(stack), sizeof(*index)); | |
1510 | if (ret) | |
1511 | goto end; | |
1512 | next_pc += sizeof(struct load_op) + sizeof(struct get_index_u64); | |
1513 | break; | |
1514 | } | |
1515 | ||
97b58163 MD |
1516 | } |
1517 | } | |
1518 | end: | |
1519 | return ret; | |
1520 | } |