projects / libside.git / blob
? search:


80867b8531bb1486cd8ba5d6cd70e29e42b26d1a
[libside.git] / src / tracer.c
1 // SPDX-License-Identifier: MIT
2 /*
3 * Copyright 2022 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
4 */
5
6 #include <stdint.h>
7 #include <inttypes.h>
8 #include <stdlib.h>
9 #include <stdio.h>
10 #include <stdbool.h>
11 #include <string.h>
12
13 #include <side/trace.h>
14
15 enum tracer_display_base {
16 TRACER_DISPLAY_BASE_2,
17 TRACER_DISPLAY_BASE_8,
18 TRACER_DISPLAY_BASE_10,
19 TRACER_DISPLAY_BASE_16,
20 };
21
22 static struct side_tracer_handle *tracer_handle;
23
24 static
25 void tracer_print_struct(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
26 static
27 void tracer_print_array(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
28 static
29 void tracer_print_vla(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
30 static
31 void tracer_print_vla_visitor(const struct side_type *type_desc, void *app_ctx);
32 static
33 void tracer_print_dynamic(const struct side_arg *dynamic_item);
34 static
35 uint32_t tracer_print_gather_bool_type(const struct side_type_gather *type_gather, const void *_ptr);
36 static
37 uint32_t tracer_print_gather_byte_type(const struct side_type_gather *type_gather, const void *_ptr);
38 static
39 uint32_t tracer_print_gather_integer_type(const struct side_type_gather *type_gather, const void *_ptr,
40 enum tracer_display_base default_base);
41 static
42 uint32_t tracer_print_gather_float_type(const struct side_type_gather *type_gather, const void *_ptr);
43 static
44 uint32_t tracer_print_gather_struct(const struct side_type_gather *type_gather, const void *_ptr);
45 static
46 uint32_t tracer_print_gather_array(const struct side_type_gather *type_gather, const void *_ptr);
47 static
48 uint32_t tracer_print_gather_vla(const struct side_type_gather *type_gather, const void *_ptr,
49 const void *_length_ptr);
50 static
51 void tracer_print_type(const struct side_type *type_desc, const struct side_arg *item);
52
53 static
54 int64_t get_attr_integer_value(const struct side_attr *attr)
55 {
56 int64_t val;
57
58 switch (attr->value.type) {
59 case SIDE_ATTR_TYPE_U8:
60 val = attr->value.u.integer_value.side_u8;
61 break;
62 case SIDE_ATTR_TYPE_U16:
63 val = attr->value.u.integer_value.side_u16;
64 break;
65 case SIDE_ATTR_TYPE_U32:
66 val = attr->value.u.integer_value.side_u32;
67 break;
68 case SIDE_ATTR_TYPE_U64:
69 val = attr->value.u.integer_value.side_u64;
70 break;
71 case SIDE_ATTR_TYPE_S8:
72 val = attr->value.u.integer_value.side_s8;
73 break;
74 case SIDE_ATTR_TYPE_S16:
75 val = attr->value.u.integer_value.side_s16;
76 break;
77 case SIDE_ATTR_TYPE_S32:
78 val = attr->value.u.integer_value.side_s32;
79 break;
80 case SIDE_ATTR_TYPE_S64:
81 val = attr->value.u.integer_value.side_s64;
82 break;
83 default:
84 fprintf(stderr, "Unexpected attribute type\n");
85 abort();
86 }
87 return val;
88 }
89
90 static
91 enum tracer_display_base get_attr_display_base(const struct side_attr *_attr, uint32_t nr_attr,
92 enum tracer_display_base default_base)
93 {
94 uint32_t i;
95
96 for (i = 0; i < nr_attr; i++) {
97 const struct side_attr *attr = &_attr[i];
98
99 if (!strcmp(attr->key, "std.integer.base")) {
100 int64_t val = get_attr_integer_value(attr);
101
102 switch (val) {
103 case 2:
104 return TRACER_DISPLAY_BASE_2;
105 case 8:
106 return TRACER_DISPLAY_BASE_8;
107 case 10:
108 return TRACER_DISPLAY_BASE_10;
109 case 16:
110 return TRACER_DISPLAY_BASE_16;
111 default:
112 fprintf(stderr, "Unexpected integer display base: %" PRId64 "\n", val);
113 abort();
114 }
115 }
116 }
117 return default_base; /* Default */
118 }
119
120 static
121 bool type_to_host_reverse_bo(const struct side_type *type_desc)
122 {
123 switch (type_desc->type) {
124 case SIDE_TYPE_U8:
125 case SIDE_TYPE_S8:
126 case SIDE_TYPE_BYTE:
127 return false;
128 case SIDE_TYPE_U16:
129 case SIDE_TYPE_U32:
130 case SIDE_TYPE_U64:
131 case SIDE_TYPE_S16:
132 case SIDE_TYPE_S32:
133 case SIDE_TYPE_S64:
134 case SIDE_TYPE_POINTER:
135 if (type_desc->u.side_integer.byte_order != SIDE_TYPE_BYTE_ORDER_HOST)
136 return true;
137 else
138 return false;
139 break;
140 case SIDE_TYPE_FLOAT_BINARY16:
141 case SIDE_TYPE_FLOAT_BINARY32:
142 case SIDE_TYPE_FLOAT_BINARY64:
143 case SIDE_TYPE_FLOAT_BINARY128:
144 if (type_desc->u.side_float.byte_order != SIDE_TYPE_FLOAT_WORD_ORDER_HOST)
145 return true;
146 else
147 return false;
148 break;
149 default:
150 fprintf(stderr, "Unexpected type\n");
151 abort();
152 }
153 }
154
155 static
156 void tracer_print_attr_type(const char *separator, const struct side_attr *attr)
157 {
158 printf("{ key%s \"%s\", value%s ", separator, attr->key, separator);
159 switch (attr->value.type) {
160 case SIDE_ATTR_TYPE_BOOL:
161 printf("%s", attr->value.u.bool_value ? "true" : "false");
162 break;
163 case SIDE_ATTR_TYPE_U8:
164 printf("%" PRIu8, attr->value.u.integer_value.side_u8);
165 break;
166 case SIDE_ATTR_TYPE_U16:
167 printf("%" PRIu16, attr->value.u.integer_value.side_u16);
168 break;
169 case SIDE_ATTR_TYPE_U32:
170 printf("%" PRIu32, attr->value.u.integer_value.side_u32);
171 break;
172 case SIDE_ATTR_TYPE_U64:
173 printf("%" PRIu64, attr->value.u.integer_value.side_u64);
174 break;
175 case SIDE_ATTR_TYPE_S8:
176 printf("%" PRId8, attr->value.u.integer_value.side_s8);
177 break;
178 case SIDE_ATTR_TYPE_S16:
179 printf("%" PRId16, attr->value.u.integer_value.side_s16);
180 break;
181 case SIDE_ATTR_TYPE_S32:
182 printf("%" PRId32, attr->value.u.integer_value.side_s32);
183 break;
184 case SIDE_ATTR_TYPE_S64:
185 printf("%" PRId64, attr->value.u.integer_value.side_s64);
186 break;
187 case SIDE_ATTR_TYPE_FLOAT_BINARY16:
188 #if __HAVE_FLOAT16
189 printf("%g", (double) attr->value.u.float_value.side_float_binary16);
190 break;
191 #else
192 fprintf(stderr, "ERROR: Unsupported binary16 float type\n");
193 abort();
194 #endif
195 case SIDE_ATTR_TYPE_FLOAT_BINARY32:
196 #if __HAVE_FLOAT32
197 printf("%g", (double) attr->value.u.float_value.side_float_binary32);
198 break;
199 #else
200 fprintf(stderr, "ERROR: Unsupported binary32 float type\n");
201 abort();
202 #endif
203 case SIDE_ATTR_TYPE_FLOAT_BINARY64:
204 #if __HAVE_FLOAT64
205 printf("%g", (double) attr->value.u.float_value.side_float_binary64);
206 break;
207 #else
208 fprintf(stderr, "ERROR: Unsupported binary64 float type\n");
209 abort();
210 #endif
211 case SIDE_ATTR_TYPE_FLOAT_BINARY128:
212 #if __HAVE_FLOAT128
213 printf("%Lg", (long double) attr->value.u.float_value.side_float_binary128);
214 break;
215 #else
216 fprintf(stderr, "ERROR: Unsupported binary128 float type\n");
217 abort();
218 #endif
219 case SIDE_ATTR_TYPE_STRING:
220 printf("\"%s\"", (const char *)(uintptr_t) attr->value.u.string_value);
221 break;
222 default:
223 fprintf(stderr, "ERROR: <UNKNOWN ATTRIBUTE TYPE>");
224 abort();
225 }
226 printf(" }");
227 }
228
229 static
230 void print_attributes(const char *prefix_str, const char *separator,
231 const struct side_attr *attr, uint32_t nr_attr)
232 {
233 uint32_t i;
234
235 if (!nr_attr)
236 return;
237 printf("%s%s [ ", prefix_str, separator);
238 for (i = 0; i < nr_attr; i++) {
239 printf("%s", i ? ", " : "");
240 tracer_print_attr_type(separator, &attr[i]);
241 }
242 printf(" ]");
243 }
244
245 static
246 void print_enum(const struct side_type *type_desc, const struct side_arg *item)
247 {
248 const struct side_enum_mappings *mappings = type_desc->u.side_enum.mappings;
249 const struct side_type *elem_type = type_desc->u.side_enum.elem_type;
250 uint32_t i, print_count = 0;
251 int64_t value;
252
253 if (elem_type->type != item->type) {
254 fprintf(stderr, "ERROR: Unexpected enum element type\n");
255 abort();
256 }
257 switch (item->type) {
258 case SIDE_TYPE_U8:
259 value = (int64_t) item->u.side_static.integer_value.side_u8;
260 break;
261 case SIDE_TYPE_U16:
262 {
263 uint16_t v;
264
265 v = item->u.side_static.integer_value.side_u16;
266 if (type_to_host_reverse_bo(elem_type))
267 v = side_bswap_16(v);
268 value = (int64_t) v;
269 break;
270 }
271 case SIDE_TYPE_U32:
272 {
273 uint32_t v;
274
275 v = item->u.side_static.integer_value.side_u32;
276 if (type_to_host_reverse_bo(elem_type))
277 v = side_bswap_32(v);
278 value = (int64_t) v;
279 break;
280 }
281 case SIDE_TYPE_U64:
282 {
283 uint64_t v;
284
285 v = item->u.side_static.integer_value.side_u64;
286 if (type_to_host_reverse_bo(elem_type))
287 v = side_bswap_64(v);
288 value = (int64_t) v;
289 break;
290 }
291 case SIDE_TYPE_S8:
292 value = (int64_t) item->u.side_static.integer_value.side_s8;
293 break;
294 case SIDE_TYPE_S16:
295 {
296 int16_t v;
297
298 v = item->u.side_static.integer_value.side_s16;
299 if (type_to_host_reverse_bo(elem_type))
300 v = side_bswap_16(v);
301 value = (int64_t) v;
302 break;
303 }
304 case SIDE_TYPE_S32:
305 {
306 int32_t v;
307
308 v = item->u.side_static.integer_value.side_s32;
309 if (type_to_host_reverse_bo(elem_type))
310 v = side_bswap_32(v);
311 value = (int64_t) v;
312 break;
313 }
314 case SIDE_TYPE_S64:
315 {
316 int64_t v;
317
318 v = item->u.side_static.integer_value.side_s64;
319 if (type_to_host_reverse_bo(elem_type))
320 v = side_bswap_64(v);
321 value = v;
322 break;
323 }
324 default:
325 fprintf(stderr, "ERROR: Unexpected enum element type\n");
326 abort();
327 }
328 print_attributes("attr", ":", mappings->attr, mappings->nr_attr);
329 printf("%s", mappings->nr_attr ? ", " : "");
330 tracer_print_type(type_desc->u.side_enum.elem_type, item);
331 printf(", labels: [ ");
332 for (i = 0; i < mappings->nr_mappings; i++) {
333 const struct side_enum_mapping *mapping = &mappings->mappings[i];
334
335 if (mapping->range_end < mapping->range_begin) {
336 fprintf(stderr, "ERROR: Unexpected enum range: %" PRIu64 "-%" PRIu64 "\n",
337 mapping->range_begin, mapping->range_end);
338 abort();
339 }
340 if (value >= mapping->range_begin && value <= mapping->range_end) {
341 printf("%s", print_count++ ? ", " : "");
342 printf("\"%s\"", mapping->label);
343 }
344 }
345 if (!print_count)
346 printf("<NO LABEL>");
347 printf(" ]");
348 }
349
350 static
351 uint32_t enum_elem_type_to_stride(const struct side_type *elem_type)
352 {
353 uint32_t stride_bit;
354
355 switch (elem_type->type) {
356 case SIDE_TYPE_U8: /* Fall-through */
357 case SIDE_TYPE_BYTE:
358 stride_bit = 8;
359 break;
360 case SIDE_TYPE_U16:
361 stride_bit = 16;
362 break;
363 case SIDE_TYPE_U32:
364 stride_bit = 32;
365 break;
366 case SIDE_TYPE_U64:
367 stride_bit = 64;
368 break;
369 default:
370 fprintf(stderr, "ERROR: Unexpected enum element type\n");
371 abort();
372 }
373 return stride_bit;
374 }
375
376 static
377 void print_enum_bitmap(const struct side_type *type_desc,
378 const struct side_arg *item)
379 {
380 const struct side_type *elem_type = type_desc->u.side_enum_bitmap.elem_type;
381 const struct side_enum_bitmap_mappings *side_enum_mappings = type_desc->u.side_enum_bitmap.mappings;
382 uint32_t i, print_count = 0, stride_bit, nr_items;
383 bool reverse_byte_order = false;
384 const struct side_arg *array_item;
385
386 switch (elem_type->type) {
387 case SIDE_TYPE_U8: /* Fall-through */
388 case SIDE_TYPE_BYTE: /* Fall-through */
389 case SIDE_TYPE_U16: /* Fall-through */
390 case SIDE_TYPE_U32: /* Fall-through */
391 case SIDE_TYPE_U64:
392 stride_bit = enum_elem_type_to_stride(elem_type);
393 reverse_byte_order = type_to_host_reverse_bo(elem_type);
394 array_item = item;
395 nr_items = 1;
396 break;
397 case SIDE_TYPE_ARRAY:
398 stride_bit = enum_elem_type_to_stride(elem_type->u.side_array.elem_type);
399 reverse_byte_order = type_to_host_reverse_bo(elem_type->u.side_array.elem_type);
400 array_item = item->u.side_static.side_array->sav;
401 nr_items = type_desc->u.side_array.length;
402 break;
403 case SIDE_TYPE_VLA:
404 stride_bit = enum_elem_type_to_stride(elem_type->u.side_vla.elem_type);
405 reverse_byte_order = type_to_host_reverse_bo(elem_type->u.side_vla.elem_type);
406 array_item = item->u.side_static.side_vla->sav;
407 nr_items = item->u.side_static.side_vla->len;
408 break;
409 default:
410 fprintf(stderr, "ERROR: Unexpected enum element type\n");
411 abort();
412 }
413
414 print_attributes("attr", ":", side_enum_mappings->attr, side_enum_mappings->nr_attr);
415 printf("%s", side_enum_mappings->nr_attr ? ", " : "");
416 printf("labels: [ ");
417 for (i = 0; i < side_enum_mappings->nr_mappings; i++) {
418 const struct side_enum_bitmap_mapping *mapping = &side_enum_mappings->mappings[i];
419 bool match = false;
420 uint64_t bit;
421
422 if (mapping->range_end < mapping->range_begin) {
423 fprintf(stderr, "ERROR: Unexpected enum bitmap range: %" PRIu64 "-%" PRIu64 "\n",
424 mapping->range_begin, mapping->range_end);
425 abort();
426 }
427 for (bit = mapping->range_begin; bit <= mapping->range_end; bit++) {
428 if (bit > (nr_items * stride_bit) - 1)
429 break;
430 switch (stride_bit) {
431 case 8:
432 {
433 uint8_t v = array_item[bit / 8].u.side_static.integer_value.side_u8;
434 if (v & (1ULL << (bit % 8))) {
435 match = true;
436 goto match;
437 }
438 break;
439 }
440 case 16:
441 {
442 uint16_t v = array_item[bit / 16].u.side_static.integer_value.side_u16;
443 if (reverse_byte_order)
444 v = side_bswap_16(v);
445 if (v & (1ULL << (bit % 16))) {
446 match = true;
447 goto match;
448 }
449 break;
450 }
451 case 32:
452 {
453 uint32_t v = array_item[bit / 32].u.side_static.integer_value.side_u32;
454 if (reverse_byte_order)
455 v = side_bswap_32(v);
456 if (v & (1ULL << (bit % 32))) {
457 match = true;
458 goto match;
459 }
460 break;
461 }
462 case 64:
463 {
464 uint64_t v = array_item[bit / 64].u.side_static.integer_value.side_u64;
465 if (reverse_byte_order)
466 v = side_bswap_64(v);
467 if (v & (1ULL << (bit % 64))) {
468 match = true;
469 goto match;
470 }
471 break;
472 }
473 default:
474 abort();
475 }
476 }
477 match:
478 if (match) {
479 printf("%s", print_count++ ? ", " : "");
480 printf("\"%s\"", mapping->label);
481 }
482 }
483 if (!print_count)
484 printf("<NO LABEL>");
485 printf(" ]");
486 }
487
488 static
489 void print_integer_binary(uint64_t v, int bits)
490 {
491 int i;
492
493 printf("0b");
494 v <<= 64 - bits;
495 for (i = 0; i < bits; i++) {
496 printf("%c", v & (1ULL << 63) ? '1' : '0');
497 v <<= 1;
498 }
499 }
500
501 static
502 void tracer_print_type_header(const char *separator,
503 const struct side_attr *attr, uint32_t nr_attr)
504 {
505 print_attributes("attr", separator, attr, nr_attr);
506 printf("%s", nr_attr ? ", " : "");
507 printf("value%s ", separator);
508 }
509
510 static
511 void tracer_print_type_bool(const char *separator,
512 const struct side_type_bool *type_bool,
513 const union side_bool_value *value,
514 uint16_t offset_bits)
515 {
516 uint32_t len_bits;
517 bool reverse_bo;
518 uint64_t v;
519
520 if (!type_bool->len_bits)
521 len_bits = type_bool->bool_size * CHAR_BIT;
522 else
523 len_bits = type_bool->len_bits;
524 if (len_bits + offset_bits > type_bool->bool_size * CHAR_BIT)
525 abort();
526 reverse_bo = type_bool->byte_order != SIDE_TYPE_BYTE_ORDER_HOST;
527 switch (type_bool->bool_size) {
528 case 1:
529 v = value->side_bool8;
530 break;
531 case 2:
532 {
533 uint16_t side_u16;
534
535 side_u16 = value->side_bool16;
536 if (reverse_bo)
537 side_u16 = side_bswap_16(side_u16);
538 v = side_u16;
539 break;
540 }
541 case 4:
542 {
543 uint32_t side_u32;
544
545 side_u32 = value->side_bool32;
546 if (reverse_bo)
547 side_u32 = side_bswap_32(side_u32);
548 v = side_u32;
549 break;
550 }
551 case 8:
552 {
553 uint64_t side_u64;
554
555 side_u64 = value->side_bool64;
556 if (reverse_bo)
557 side_u64 = side_bswap_64(side_u64);
558 v = side_u64;
559 break;
560 }
561 default:
562 abort();
563 }
564 v >>= offset_bits;
565 if (len_bits < 64)
566 v &= (1ULL << len_bits) - 1;
567 tracer_print_type_header(separator, type_bool->attr, type_bool->nr_attr);
568 printf("%s", v ? "true" : "false");
569 }
570
571 static
572 void tracer_print_type_integer(const char *separator,
573 const struct side_type_integer *type_integer,
574 const union side_integer_value *value,
575 uint16_t offset_bits,
576 enum tracer_display_base default_base)
577 {
578 enum tracer_display_base base;
579 uint32_t len_bits;
580 bool reverse_bo;
581 union {
582 uint64_t v_unsigned;
583 int64_t v_signed;
584 } v;
585
586 if (!type_integer->len_bits)
587 len_bits = type_integer->integer_size * CHAR_BIT;
588 else
589 len_bits = type_integer->len_bits;
590 if (len_bits + offset_bits > type_integer->integer_size * CHAR_BIT)
591 abort();
592 reverse_bo = type_integer->byte_order != SIDE_TYPE_BYTE_ORDER_HOST;
593 base = get_attr_display_base(type_integer->attr,
594 type_integer->nr_attr,
595 default_base);
596 switch (type_integer->integer_size) {
597 case 1:
598 if (type_integer->signedness)
599 v.v_signed = value->side_s8;
600 else
601 v.v_unsigned = value->side_u8;
602 break;
603 case 2:
604 if (type_integer->signedness) {
605 int16_t side_s16;
606
607 side_s16 = value->side_s16;
608 if (reverse_bo)
609 side_s16 = side_bswap_16(side_s16);
610 v.v_signed = side_s16;
611 } else {
612 uint16_t side_u16;
613
614 side_u16 = value->side_u16;
615 if (reverse_bo)
616 side_u16 = side_bswap_16(side_u16);
617 v.v_unsigned = side_u16;
618 }
619 break;
620 case 4:
621 if (type_integer->signedness) {
622 int32_t side_s32;
623
624 side_s32 = value->side_s32;
625 if (reverse_bo)
626 side_s32 = side_bswap_32(side_s32);
627 v.v_signed = side_s32;
628 } else {
629 uint32_t side_u32;
630
631 side_u32 = value->side_u32;
632 if (reverse_bo)
633 side_u32 = side_bswap_32(side_u32);
634 v.v_unsigned = side_u32;
635 }
636 break;
637 case 8:
638 if (type_integer->signedness) {
639 int64_t side_s64;
640
641 side_s64 = value->side_s64;
642 if (reverse_bo)
643 side_s64 = side_bswap_64(side_s64);
644 v.v_signed = side_s64;
645 } else {
646 uint64_t side_u64;
647
648 side_u64 = value->side_u64;
649 if (reverse_bo)
650 side_u64 = side_bswap_64(side_u64);
651 v.v_unsigned = side_u64;
652 }
653 break;
654 default:
655 abort();
656 }
657 v.v_unsigned >>= offset_bits;
658 if (len_bits < 64)
659 v.v_unsigned &= (1ULL << len_bits) - 1;
660 tracer_print_type_header(separator, type_integer->attr, type_integer->nr_attr);
661 switch (base) {
662 case TRACER_DISPLAY_BASE_2:
663 print_integer_binary(v.v_unsigned, len_bits);
664 break;
665 case TRACER_DISPLAY_BASE_8:
666 printf("0%" PRIo64, v.v_unsigned);
667 break;
668 case TRACER_DISPLAY_BASE_10:
669 if (type_integer->signedness) {
670 /* Sign-extend. */
671 if (len_bits < 64) {
672 if (v.v_unsigned & (1ULL << (len_bits - 1)))
673 v.v_unsigned |= ~((1ULL << len_bits) - 1);
674 }
675 printf("%" PRId64, v.v_signed);
676 } else {
677 printf("%" PRIu64, v.v_unsigned);
678 }
679 break;
680 case TRACER_DISPLAY_BASE_16:
681 printf("0x%" PRIx64, v.v_unsigned);
682 break;
683 default:
684 abort();
685 }
686 }
687
688 static
689 void tracer_print_type_float(const char *separator,
690 const struct side_type_float *type_float,
691 const union side_float_value *value)
692 {
693 bool reverse_bo;
694
695 reverse_bo = type_float->byte_order != SIDE_TYPE_FLOAT_WORD_ORDER_HOST;
696 tracer_print_type_header(separator, type_float->attr, type_float->nr_attr);
697 switch (type_float->float_size) {
698 case 2:
699 {
700 #if __HAVE_FLOAT16
701 union {
702 _Float16 f;
703 uint16_t u;
704 } float16 = {
705 .f = value->side_float_binary16,
706 };
707
708 if (reverse_bo)
709 float16.u = side_bswap_16(float16.u);
710 tracer_print_type_header(":", type_desc->u.side_float.attr, type_desc->u.side_float.nr_attr);
711 printf("%g", (double) float16.f);
712 break;
713 #else
714 fprintf(stderr, "ERROR: Unsupported binary16 float type\n");
715 abort();
716 #endif
717 }
718 case 4:
719 {
720 #if __HAVE_FLOAT32
721 union {
722 _Float32 f;
723 uint32_t u;
724 } float32 = {
725 .f = value->side_float_binary32,
726 };
727
728 if (reverse_bo)
729 float32.u = side_bswap_32(float32.u);
730 printf("%g", (double) float32.f);
731 break;
732 #else
733 fprintf(stderr, "ERROR: Unsupported binary32 float type\n");
734 abort();
735 #endif
736 }
737 case 8:
738 {
739 #if __HAVE_FLOAT64
740 union {
741 _Float64 f;
742 uint64_t u;
743 } float64 = {
744 .f = value->side_float_binary64,
745 };
746
747 if (reverse_bo)
748 float64.u = side_bswap_64(float64.u);
749 printf("%g", (double) float64.f);
750 break;
751 #else
752 fprintf(stderr, "ERROR: Unsupported binary64 float type\n");
753 abort();
754 #endif
755 }
756 case 16:
757 {
758 #if __HAVE_FLOAT128
759 union {
760 _Float128 f;
761 char arr[16];
762 } float128 = {
763 .f = value->side_float_binary128,
764 };
765
766 if (reverse_bo)
767 side_bswap_128p(float128.arr);
768 printf("%Lg", (long double) float128.f);
769 break;
770 #else
771 fprintf(stderr, "ERROR: Unsupported binary128 float type\n");
772 abort();
773 #endif
774 }
775 default:
776 fprintf(stderr, "ERROR: Unknown float size\n");
777 abort();
778 }
779 }
780
781 static
782 void tracer_print_type(const struct side_type *type_desc, const struct side_arg *item)
783 {
784 enum side_type_label type;
785
786 switch (type_desc->type) {
787 case SIDE_TYPE_ENUM:
788 switch (item->type) {
789 case SIDE_TYPE_U8:
790 case SIDE_TYPE_U16:
791 case SIDE_TYPE_U32:
792 case SIDE_TYPE_U64:
793 case SIDE_TYPE_S8:
794 case SIDE_TYPE_S16:
795 case SIDE_TYPE_S32:
796 case SIDE_TYPE_S64:
797 break;
798 default:
799 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
800 abort();
801 break;
802 }
803 break;
804
805 case SIDE_TYPE_ENUM_BITMAP:
806 switch (item->type) {
807 case SIDE_TYPE_U8:
808 case SIDE_TYPE_BYTE:
809 case SIDE_TYPE_U16:
810 case SIDE_TYPE_U32:
811 case SIDE_TYPE_U64:
812 case SIDE_TYPE_ARRAY:
813 case SIDE_TYPE_VLA:
814 break;
815 default:
816 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
817 abort();
818 break;
819 }
820 break;
821
822 case SIDE_TYPE_DYNAMIC:
823 switch (item->type) {
824 case SIDE_TYPE_DYNAMIC_NULL:
825 case SIDE_TYPE_DYNAMIC_BOOL:
826 case SIDE_TYPE_DYNAMIC_INTEGER:
827 case SIDE_TYPE_DYNAMIC_BYTE:
828 case SIDE_TYPE_DYNAMIC_POINTER:
829 case SIDE_TYPE_DYNAMIC_FLOAT:
830 case SIDE_TYPE_DYNAMIC_STRING:
831 case SIDE_TYPE_DYNAMIC_STRUCT:
832 case SIDE_TYPE_DYNAMIC_STRUCT_VISITOR:
833 case SIDE_TYPE_DYNAMIC_VLA:
834 case SIDE_TYPE_DYNAMIC_VLA_VISITOR:
835 break;
836 default:
837 fprintf(stderr, "ERROR: Unexpected dynamic type\n");
838 abort();
839 break;
840 }
841 break;
842
843 default:
844 if (type_desc->type != item->type) {
845 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
846 abort();
847 }
848 break;
849 }
850
851 if (type_desc->type == SIDE_TYPE_ENUM || type_desc->type == SIDE_TYPE_ENUM_BITMAP)
852 type = (enum side_type_label) type_desc->type;
853 else
854 type = (enum side_type_label) item->type;
855
856 printf("{ ");
857 switch (type) {
858 case SIDE_TYPE_NULL:
859 tracer_print_type_header(":", type_desc->u.side_null.attr, type_desc->u.side_null.nr_attr);
860 printf("<NULL TYPE>");
861 break;
862
863 case SIDE_TYPE_BOOL:
864 tracer_print_type_bool(":", &type_desc->u.side_bool, &item->u.side_static.bool_value, 0);
865 break;
866
867 case SIDE_TYPE_U8:
868 case SIDE_TYPE_U16:
869 case SIDE_TYPE_U32:
870 case SIDE_TYPE_U64:
871 case SIDE_TYPE_S8:
872 case SIDE_TYPE_S16:
873 case SIDE_TYPE_S32:
874 case SIDE_TYPE_S64:
875 tracer_print_type_integer(":", &type_desc->u.side_integer, &item->u.side_static.integer_value, 0,
876 TRACER_DISPLAY_BASE_10);
877 break;
878
879 case SIDE_TYPE_POINTER:
880 tracer_print_type_integer(":", &type_desc->u.side_integer, &item->u.side_static.integer_value, 0,
881 TRACER_DISPLAY_BASE_16);
882 break;
883
884 case SIDE_TYPE_BYTE:
885 tracer_print_type_header(":", type_desc->u.side_byte.attr, type_desc->u.side_byte.nr_attr);
886 printf("0x%" PRIx8, item->u.side_static.byte_value);
887 break;
888
889 case SIDE_TYPE_ENUM:
890 print_enum(type_desc, item);
891 break;
892
893 case SIDE_TYPE_ENUM_BITMAP:
894 print_enum_bitmap(type_desc, item);
895 break;
896
897 case SIDE_TYPE_FLOAT_BINARY16:
898 case SIDE_TYPE_FLOAT_BINARY32:
899 case SIDE_TYPE_FLOAT_BINARY64:
900 case SIDE_TYPE_FLOAT_BINARY128:
901 tracer_print_type_float(":", &type_desc->u.side_float, &item->u.side_static.float_value);
902 break;
903
904 case SIDE_TYPE_STRING:
905 tracer_print_type_header(":", type_desc->u.side_string.attr, type_desc->u.side_string.nr_attr);
906 printf("\"%s\"", (const char *)(uintptr_t) item->u.side_static.string_value);
907 break;
908 case SIDE_TYPE_STRUCT:
909 tracer_print_struct(type_desc, item->u.side_static.side_struct);
910 break;
911 case SIDE_TYPE_GATHER_STRUCT:
912 (void) tracer_print_gather_struct(&type_desc->u.side_gather, item->u.side_static.side_struct_gather_ptr);
913 break;
914 case SIDE_TYPE_GATHER_ARRAY:
915 (void) tracer_print_gather_array(&type_desc->u.side_gather, item->u.side_static.side_array_gather_ptr);
916 break;
917 case SIDE_TYPE_GATHER_VLA:
918 (void) tracer_print_gather_vla(&type_desc->u.side_gather, item->u.side_static.side_vla_gather.ptr,
919 item->u.side_static.side_vla_gather.length_ptr);
920 break;
921 case SIDE_TYPE_GATHER_BOOL:
922 (void) tracer_print_gather_bool_type(&type_desc->u.side_gather, item->u.side_static.side_bool_gather_ptr);
923 break;
924 case SIDE_TYPE_GATHER_BYTE:
925 (void) tracer_print_gather_byte_type(&type_desc->u.side_gather, item->u.side_static.side_byte_gather_ptr);
926 break;
927 case SIDE_TYPE_GATHER_POINTER:
928 (void) tracer_print_gather_integer_type(&type_desc->u.side_gather, item->u.side_static.side_integer_gather_ptr,
929 TRACER_DISPLAY_BASE_16);
930 break;
931 case SIDE_TYPE_GATHER_INTEGER:
932 (void) tracer_print_gather_integer_type(&type_desc->u.side_gather, item->u.side_static.side_integer_gather_ptr,
933 TRACER_DISPLAY_BASE_10);
934 break;
935 case SIDE_TYPE_GATHER_FLOAT:
936 (void) tracer_print_gather_float_type(&type_desc->u.side_gather, item->u.side_static.side_float_gather_ptr);
937 break;
938 case SIDE_TYPE_ARRAY:
939 tracer_print_array(type_desc, item->u.side_static.side_array);
940 break;
941 case SIDE_TYPE_VLA:
942 tracer_print_vla(type_desc, item->u.side_static.side_vla);
943 break;
944 case SIDE_TYPE_VLA_VISITOR:
945 tracer_print_vla_visitor(type_desc, item->u.side_static.side_vla_app_visitor_ctx);
946 break;
947
948 /* Dynamic types */
949 case SIDE_TYPE_DYNAMIC_NULL:
950 case SIDE_TYPE_DYNAMIC_BOOL:
951 case SIDE_TYPE_DYNAMIC_INTEGER:
952 case SIDE_TYPE_DYNAMIC_BYTE:
953 case SIDE_TYPE_DYNAMIC_POINTER:
954 case SIDE_TYPE_DYNAMIC_FLOAT:
955 case SIDE_TYPE_DYNAMIC_STRING:
956 case SIDE_TYPE_DYNAMIC_STRUCT:
957 case SIDE_TYPE_DYNAMIC_STRUCT_VISITOR:
958 case SIDE_TYPE_DYNAMIC_VLA:
959 case SIDE_TYPE_DYNAMIC_VLA_VISITOR:
960 tracer_print_dynamic(item);
961 break;
962 default:
963 fprintf(stderr, "<UNKNOWN TYPE>\n");
964 abort();
965 }
966 printf(" }");
967 }
968
969 static
970 void tracer_print_field(const struct side_event_field *item_desc, const struct side_arg *item)
971 {
972 printf("%s: ", item_desc->field_name);
973 tracer_print_type(&item_desc->side_type, item);
974 }
975
976 static
977 void tracer_print_struct(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec)
978 {
979 const struct side_arg *sav = side_arg_vec->sav;
980 uint32_t i, side_sav_len = side_arg_vec->len;
981
982 if (type_desc->u.side_struct->nr_fields != side_sav_len) {
983 fprintf(stderr, "ERROR: number of fields mismatch between description and arguments of structure\n");
984 abort();
985 }
986 print_attributes("attr", ":", type_desc->u.side_struct->attr, type_desc->u.side_struct->nr_attr);
987 printf("%s", type_desc->u.side_struct->nr_attr ? ", " : "");
988 printf("fields: { ");
989 for (i = 0; i < side_sav_len; i++) {
990 printf("%s", i ? ", " : "");
991 tracer_print_field(&type_desc->u.side_struct->fields[i], &sav[i]);
992 }
993 printf(" }");
994 }
995
996 static
997 void tracer_print_array(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec)
998 {
999 const struct side_arg *sav = side_arg_vec->sav;
1000 uint32_t i, side_sav_len = side_arg_vec->len;
1001
1002 if (type_desc->u.side_array.length != side_sav_len) {
1003 fprintf(stderr, "ERROR: length mismatch between description and arguments of array\n");
1004 abort();
1005 }
1006 print_attributes("attr", ":", type_desc->u.side_array.attr, type_desc->u.side_array.nr_attr);
1007 printf("%s", type_desc->u.side_array.nr_attr ? ", " : "");
1008 printf("elements: ");
1009 printf("[ ");
1010 for (i = 0; i < side_sav_len; i++) {
1011 printf("%s", i ? ", " : "");
1012 tracer_print_type(type_desc->u.side_array.elem_type, &sav[i]);
1013 }
1014 printf(" ]");
1015 }
1016
1017 static
1018 void tracer_print_vla(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec)
1019 {
1020 const struct side_arg *sav = side_arg_vec->sav;
1021 uint32_t i, side_sav_len = side_arg_vec->len;
1022
1023 print_attributes("attr", ":", type_desc->u.side_vla.attr, type_desc->u.side_vla.nr_attr);
1024 printf("%s", type_desc->u.side_vla.nr_attr ? ", " : "");
1025 printf("elements: ");
1026 printf("[ ");
1027 for (i = 0; i < side_sav_len; i++) {
1028 printf("%s", i ? ", " : "");
1029 tracer_print_type(type_desc->u.side_vla.elem_type, &sav[i]);
1030 }
1031 printf(" ]");
1032 }
1033
1034 static
1035 const char *tracer_gather_access(enum side_type_gather_access_mode access_mode, const char *ptr)
1036 {
1037 switch (access_mode) {
1038 case SIDE_TYPE_GATHER_ACCESS_DIRECT:
1039 return ptr;
1040 case SIDE_TYPE_GATHER_ACCESS_POINTER:
1041 /* Dereference pointer */
1042 memcpy(&ptr, ptr, sizeof(ptr));
1043 return ptr;
1044 default:
1045 abort();
1046 }
1047 }
1048
1049 static
1050 uint32_t tracer_gather_size(enum side_type_gather_access_mode access_mode, uint32_t len)
1051 {
1052 switch (access_mode) {
1053 case SIDE_TYPE_GATHER_ACCESS_DIRECT:
1054 return len;
1055 case SIDE_TYPE_GATHER_ACCESS_POINTER:
1056 return sizeof(void *);
1057 default:
1058 abort();
1059 }
1060 }
1061
1062 static
1063 uint64_t tracer_load_gather_integer_type(const struct side_type_gather *type_gather, const void *_ptr)
1064 {
1065 enum side_type_gather_access_mode access_mode = type_gather->u.side_integer.access_mode;
1066 uint32_t integer_size_bytes = type_gather->u.side_integer.type.integer_size;
1067 const char *ptr = (const char *) _ptr;
1068 union side_integer_value value;
1069
1070 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_integer.offset);
1071 memcpy(&value, ptr, integer_size_bytes);
1072 switch (type_gather->u.side_integer.type.integer_size) {
1073 case 1:
1074 return (uint64_t) value.side_u8;
1075 case 2:
1076 return (uint64_t) value.side_u16;
1077 case 4:
1078 return (uint64_t) value.side_u32;
1079 case 8:
1080 return (uint64_t) value.side_u64;
1081 default:
1082 abort();
1083 }
1084 }
1085
1086 static
1087 uint32_t tracer_print_gather_bool_type(const struct side_type_gather *type_gather, const void *_ptr)
1088 {
1089 enum side_type_gather_access_mode access_mode = type_gather->u.side_bool.access_mode;
1090 uint32_t bool_size_bytes = type_gather->u.side_bool.type.bool_size;
1091 const char *ptr = (const char *) _ptr;
1092 union side_bool_value value;
1093
1094 switch (bool_size_bytes) {
1095 case 1:
1096 case 2:
1097 case 4:
1098 case 8:
1099 break;
1100 default:
1101 abort();
1102 }
1103 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_bool.offset);
1104 memcpy(&value, ptr, bool_size_bytes);
1105 tracer_print_type_bool(":", &type_gather->u.side_bool.type, &value,
1106 type_gather->u.side_bool.offset_bits);
1107 return tracer_gather_size(access_mode, bool_size_bytes);
1108 }
1109
1110 static
1111 uint32_t tracer_print_gather_byte_type(const struct side_type_gather *type_gather, const void *_ptr)
1112 {
1113 enum side_type_gather_access_mode access_mode = type_gather->u.side_byte.access_mode;
1114 const char *ptr = (const char *) _ptr;
1115 uint8_t value;
1116
1117 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_byte.offset);
1118 memcpy(&value, ptr, 1);
1119 tracer_print_type_header(":", type_gather->u.side_byte.type.attr,
1120 type_gather->u.side_byte.type.nr_attr);
1121 printf("0x%" PRIx8, value);
1122 return tracer_gather_size(access_mode, 1);
1123 }
1124
1125 static
1126 uint32_t tracer_print_gather_integer_type(const struct side_type_gather *type_gather, const void *_ptr,
1127 enum tracer_display_base default_base)
1128 {
1129 enum side_type_gather_access_mode access_mode = type_gather->u.side_integer.access_mode;
1130 uint32_t integer_size_bytes = type_gather->u.side_integer.type.integer_size;
1131 const char *ptr = (const char *) _ptr;
1132 union side_integer_value value;
1133
1134 switch (integer_size_bytes) {
1135 case 1:
1136 case 2:
1137 case 4:
1138 case 8:
1139 break;
1140 default:
1141 abort();
1142 }
1143 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_integer.offset);
1144 memcpy(&value, ptr, integer_size_bytes);
1145 tracer_print_type_integer(":", &type_gather->u.side_integer.type, &value,
1146 type_gather->u.side_integer.offset_bits, default_base);
1147 return tracer_gather_size(access_mode, integer_size_bytes);
1148 }
1149
1150 static
1151 uint32_t tracer_print_gather_float_type(const struct side_type_gather *type_gather, const void *_ptr)
1152 {
1153 enum side_type_gather_access_mode access_mode = type_gather->u.side_float.access_mode;
1154 uint32_t float_size_bytes = type_gather->u.side_float.type.float_size;
1155 const char *ptr = (const char *) _ptr;
1156 union side_float_value value;
1157
1158 switch (float_size_bytes) {
1159 case 2:
1160 case 4:
1161 case 8:
1162 case 16:
1163 break;
1164 default:
1165 abort();
1166 }
1167 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_float.offset);
1168 memcpy(&value, ptr, float_size_bytes);
1169 tracer_print_type_float(":", &type_gather->u.side_float.type, &value);
1170 return tracer_gather_size(access_mode, float_size_bytes);
1171 }
1172
1173 static
1174 uint32_t tracer_print_gather_type(const struct side_type *type_desc, const void *ptr)
1175 {
1176 uint32_t len;
1177
1178 printf("{ ");
1179 switch (type_desc->type) {
1180 case SIDE_TYPE_GATHER_BOOL:
1181 len = tracer_print_gather_bool_type(&type_desc->u.side_gather, ptr);
1182 break;
1183 case SIDE_TYPE_GATHER_BYTE:
1184 len = tracer_print_gather_byte_type(&type_desc->u.side_gather, ptr);
1185 break;
1186 case SIDE_TYPE_GATHER_POINTER:
1187 len = tracer_print_gather_integer_type(&type_desc->u.side_gather, ptr,
1188 TRACER_DISPLAY_BASE_16);
1189 break;
1190 case SIDE_TYPE_GATHER_INTEGER:
1191 len = tracer_print_gather_integer_type(&type_desc->u.side_gather, ptr,
1192 TRACER_DISPLAY_BASE_10);
1193 break;
1194 case SIDE_TYPE_GATHER_FLOAT:
1195 len = tracer_print_gather_float_type(&type_desc->u.side_gather, ptr);
1196 break;
1197 case SIDE_TYPE_GATHER_STRUCT:
1198 len = tracer_print_gather_struct(&type_desc->u.side_gather, ptr);
1199 break;
1200 case SIDE_TYPE_GATHER_ARRAY:
1201 len = tracer_print_gather_array(&type_desc->u.side_gather, ptr);
1202 break;
1203 case SIDE_TYPE_GATHER_VLA:
1204 len = tracer_print_gather_vla(&type_desc->u.side_gather, ptr, ptr);
1205 break;
1206 default:
1207 fprintf(stderr, "<UNKNOWN GATHER TYPE>");
1208 abort();
1209 }
1210 printf(" }");
1211 return len;
1212 }
1213
1214 static
1215 void tracer_print_gather_field(const struct side_event_field *field, const void *ptr)
1216 {
1217 printf("%s: ", field->field_name);
1218 (void) tracer_print_gather_type(&field->side_type, ptr);
1219 }
1220
1221 static
1222 uint32_t tracer_print_gather_struct(const struct side_type_gather *type_gather, const void *_ptr)
1223 {
1224 enum side_type_gather_access_mode access_mode = type_gather->u.side_struct.access_mode;
1225 const char *ptr = (const char *) _ptr;
1226 uint32_t i;
1227
1228 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_struct.offset);
1229 print_attributes("attr", ":", type_gather->u.side_struct.type->attr, type_gather->u.side_struct.type->nr_attr);
1230 printf("%s", type_gather->u.side_struct.type->nr_attr ? ", " : "");
1231 printf("fields: { ");
1232 for (i = 0; i < type_gather->u.side_struct.type->nr_fields; i++) {
1233 printf("%s", i ? ", " : "");
1234 tracer_print_gather_field(&type_gather->u.side_struct.type->fields[i], ptr);
1235 }
1236 printf(" }");
1237 return tracer_gather_size(access_mode, type_gather->u.side_struct.size);
1238 }
1239
1240 static
1241 uint32_t tracer_print_gather_array(const struct side_type_gather *type_gather, const void *_ptr)
1242 {
1243 enum side_type_gather_access_mode access_mode = type_gather->u.side_array.access_mode;
1244 const char *ptr = (const char *) _ptr, *orig_ptr;
1245 uint32_t i;
1246
1247 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_array.offset);
1248 orig_ptr = ptr;
1249 print_attributes("attr", ":", type_gather->u.side_array.type.attr, type_gather->u.side_array.type.nr_attr);
1250 printf("%s", type_gather->u.side_array.type.nr_attr ? ", " : "");
1251 printf("elements: ");
1252 printf("[ ");
1253 for (i = 0; i < type_gather->u.side_array.type.length; i++) {
1254 switch (type_gather->u.side_array.type.elem_type->type) {
1255 case SIDE_TYPE_GATHER_VLA:
1256 fprintf(stderr, "<gather VLA only supported within gather structures>\n");
1257 abort();
1258 default:
1259 break;
1260 }
1261 printf("%s", i ? ", " : "");
1262 ptr += tracer_print_gather_type(type_gather->u.side_array.type.elem_type, ptr);
1263 }
1264 printf(" ]");
1265 return tracer_gather_size(access_mode, ptr - orig_ptr);
1266 }
1267
1268 static
1269 uint32_t tracer_print_gather_vla(const struct side_type_gather *type_gather, const void *_ptr,
1270 const void *_length_ptr)
1271 {
1272 enum side_type_gather_access_mode access_mode = type_gather->u.side_vla.access_mode;
1273 const char *ptr = (const char *) _ptr, *orig_ptr;
1274 const char *length_ptr = (const char *) _length_ptr;
1275 uint32_t i, length;
1276
1277 /* Access length */
1278 switch (type_gather->u.side_vla.length_type->type) {
1279 case SIDE_TYPE_GATHER_INTEGER:
1280 break;
1281 default:
1282 fprintf(stderr, "<gather VLA expects integer gather length type>\n");
1283 abort();
1284 }
1285 length = (uint32_t) tracer_load_gather_integer_type(&type_gather->u.side_vla.length_type->u.side_gather, length_ptr);
1286 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_vla.offset);
1287 orig_ptr = ptr;
1288 print_attributes("attr", ":", type_gather->u.side_vla.type.attr, type_gather->u.side_vla.type.nr_attr);
1289 printf("%s", type_gather->u.side_vla.type.nr_attr ? ", " : "");
1290 printf("elements: ");
1291 printf("[ ");
1292 for (i = 0; i < length; i++) {
1293 switch (type_gather->u.side_vla.type.elem_type->type) {
1294 case SIDE_TYPE_GATHER_VLA:
1295 fprintf(stderr, "<gather VLA only supported within gather structures>\n");
1296 abort();
1297 default:
1298 break;
1299 }
1300 printf("%s", i ? ", " : "");
1301 ptr += tracer_print_gather_type(type_gather->u.side_vla.type.elem_type, ptr);
1302 }
1303 printf(" ]");
1304 return tracer_gather_size(access_mode, ptr - orig_ptr);
1305 }
1306
1307 struct tracer_visitor_priv {
1308 const struct side_type *elem_type;
1309 int i;
1310 };
1311
1312 static
1313 enum side_visitor_status tracer_write_elem_cb(const struct side_tracer_visitor_ctx *tracer_ctx,
1314 const struct side_arg *elem)
1315 {
1316 struct tracer_visitor_priv *tracer_priv = (struct tracer_visitor_priv *) tracer_ctx->priv;
1317
1318 printf("%s", tracer_priv->i++ ? ", " : "");
1319 tracer_print_type(tracer_priv->elem_type, elem);
1320 return SIDE_VISITOR_STATUS_OK;
1321 }
1322
1323 static
1324 void tracer_print_vla_visitor(const struct side_type *type_desc, void *app_ctx)
1325 {
1326 enum side_visitor_status status;
1327 struct tracer_visitor_priv tracer_priv = {
1328 .elem_type = type_desc->u.side_vla_visitor.elem_type,
1329 .i = 0,
1330 };
1331 const struct side_tracer_visitor_ctx tracer_ctx = {
1332 .write_elem = tracer_write_elem_cb,
1333 .priv = &tracer_priv,
1334 };
1335
1336 print_attributes("attr", ":", type_desc->u.side_vla_visitor.attr, type_desc->u.side_vla_visitor.nr_attr);
1337 printf("%s", type_desc->u.side_vla_visitor.nr_attr ? ", " : "");
1338 printf("elements: ");
1339 printf("[ ");
1340 status = type_desc->u.side_vla_visitor.visitor(&tracer_ctx, app_ctx);
1341 switch (status) {
1342 case SIDE_VISITOR_STATUS_OK:
1343 break;
1344 case SIDE_VISITOR_STATUS_ERROR:
1345 fprintf(stderr, "ERROR: Visitor error\n");
1346 abort();
1347 }
1348 printf(" ]");
1349 }
1350
1351 static
1352 void tracer_print_dynamic_struct(const struct side_arg_dynamic_struct *dynamic_struct)
1353 {
1354 const struct side_arg_dynamic_field *fields = dynamic_struct->fields;
1355 uint32_t i, len = dynamic_struct->len;
1356
1357 print_attributes("attr", "::", dynamic_struct->attr, dynamic_struct->nr_attr);
1358 printf("%s", dynamic_struct->nr_attr ? ", " : "");
1359 printf("fields:: ");
1360 printf("[ ");
1361 for (i = 0; i < len; i++) {
1362 printf("%s", i ? ", " : "");
1363 printf("%s:: ", fields[i].field_name);
1364 tracer_print_dynamic(&fields[i].elem);
1365 }
1366 printf(" ]");
1367 }
1368
1369 struct tracer_dynamic_struct_visitor_priv {
1370 int i;
1371 };
1372
1373 static
1374 enum side_visitor_status tracer_dynamic_struct_write_elem_cb(
1375 const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
1376 const struct side_arg_dynamic_field *dynamic_field)
1377 {
1378 struct tracer_dynamic_struct_visitor_priv *tracer_priv =
1379 (struct tracer_dynamic_struct_visitor_priv *) tracer_ctx->priv;
1380
1381 printf("%s", tracer_priv->i++ ? ", " : "");
1382 printf("%s:: ", dynamic_field->field_name);
1383 tracer_print_dynamic(&dynamic_field->elem);
1384 return SIDE_VISITOR_STATUS_OK;
1385 }
1386
1387 static
1388 void tracer_print_dynamic_struct_visitor(const struct side_arg *item)
1389 {
1390 enum side_visitor_status status;
1391 struct tracer_dynamic_struct_visitor_priv tracer_priv = {
1392 .i = 0,
1393 };
1394 const struct side_tracer_dynamic_struct_visitor_ctx tracer_ctx = {
1395 .write_field = tracer_dynamic_struct_write_elem_cb,
1396 .priv = &tracer_priv,
1397 };
1398 void *app_ctx = item->u.side_dynamic.side_dynamic_struct_visitor.app_ctx;
1399
1400 print_attributes("attr", "::", item->u.side_dynamic.side_dynamic_struct_visitor.attr, item->u.side_dynamic.side_dynamic_struct_visitor.nr_attr);
1401 printf("%s", item->u.side_dynamic.side_dynamic_struct_visitor.nr_attr ? ", " : "");
1402 printf("fields:: ");
1403 printf("[ ");
1404 status = item->u.side_dynamic.side_dynamic_struct_visitor.visitor(&tracer_ctx, app_ctx);
1405 switch (status) {
1406 case SIDE_VISITOR_STATUS_OK:
1407 break;
1408 case SIDE_VISITOR_STATUS_ERROR:
1409 fprintf(stderr, "ERROR: Visitor error\n");
1410 abort();
1411 }
1412 printf(" ]");
1413 }
1414
1415 static
1416 void tracer_print_dynamic_vla(const struct side_arg_dynamic_vla *vla)
1417 {
1418 const struct side_arg *sav = vla->sav;
1419 uint32_t i, side_sav_len = vla->len;
1420
1421 print_attributes("attr", "::", vla->attr, vla->nr_attr);
1422 printf("%s", vla->nr_attr ? ", " : "");
1423 printf("elements:: ");
1424 printf("[ ");
1425 for (i = 0; i < side_sav_len; i++) {
1426 printf("%s", i ? ", " : "");
1427 tracer_print_dynamic(&sav[i]);
1428 }
1429 printf(" ]");
1430 }
1431
1432 struct tracer_dynamic_vla_visitor_priv {
1433 int i;
1434 };
1435
1436 static
1437 enum side_visitor_status tracer_dynamic_vla_write_elem_cb(
1438 const struct side_tracer_visitor_ctx *tracer_ctx,
1439 const struct side_arg *elem)
1440 {
1441 struct tracer_dynamic_vla_visitor_priv *tracer_priv =
1442 (struct tracer_dynamic_vla_visitor_priv *) tracer_ctx->priv;
1443
1444 printf("%s", tracer_priv->i++ ? ", " : "");
1445 tracer_print_dynamic(elem);
1446 return SIDE_VISITOR_STATUS_OK;
1447 }
1448
1449 static
1450 void tracer_print_dynamic_vla_visitor(const struct side_arg *item)
1451 {
1452 enum side_visitor_status status;
1453 struct tracer_dynamic_vla_visitor_priv tracer_priv = {
1454 .i = 0,
1455 };
1456 const struct side_tracer_visitor_ctx tracer_ctx = {
1457 .write_elem = tracer_dynamic_vla_write_elem_cb,
1458 .priv = &tracer_priv,
1459 };
1460 void *app_ctx = item->u.side_dynamic.side_dynamic_vla_visitor.app_ctx;
1461
1462 print_attributes("attr", "::", item->u.side_dynamic.side_dynamic_vla_visitor.attr, item->u.side_dynamic.side_dynamic_vla_visitor.nr_attr);
1463 printf("%s", item->u.side_dynamic.side_dynamic_vla_visitor.nr_attr ? ", " : "");
1464 printf("elements:: ");
1465 printf("[ ");
1466 status = item->u.side_dynamic.side_dynamic_vla_visitor.visitor(&tracer_ctx, app_ctx);
1467 switch (status) {
1468 case SIDE_VISITOR_STATUS_OK:
1469 break;
1470 case SIDE_VISITOR_STATUS_ERROR:
1471 fprintf(stderr, "ERROR: Visitor error\n");
1472 abort();
1473 }
1474 printf(" ]");
1475 }
1476
1477 static
1478 void tracer_print_dynamic(const struct side_arg *item)
1479 {
1480 printf("{ ");
1481 switch (item->type) {
1482 case SIDE_TYPE_DYNAMIC_NULL:
1483 tracer_print_type_header("::", item->u.side_dynamic.side_null.attr, item->u.side_dynamic.side_null.nr_attr);
1484 printf("<NULL TYPE>");
1485 break;
1486
1487 case SIDE_TYPE_DYNAMIC_BOOL:
1488 tracer_print_type_bool("::", &item->u.side_dynamic.side_bool.type, &item->u.side_dynamic.side_bool.value, 0);
1489 break;
1490
1491 case SIDE_TYPE_DYNAMIC_INTEGER:
1492 tracer_print_type_integer("::", &item->u.side_dynamic.side_integer.type, &item->u.side_dynamic.side_integer.value, 0,
1493 TRACER_DISPLAY_BASE_10);
1494 break;
1495 case SIDE_TYPE_DYNAMIC_BYTE:
1496 tracer_print_type_header("::", item->u.side_dynamic.side_byte.type.attr, item->u.side_dynamic.side_byte.type.nr_attr);
1497 printf("0x%" PRIx8, item->u.side_dynamic.side_byte.value);
1498 break;
1499
1500 case SIDE_TYPE_DYNAMIC_POINTER:
1501 tracer_print_type_integer("::", &item->u.side_dynamic.side_integer.type, &item->u.side_dynamic.side_integer.value, 0,
1502 TRACER_DISPLAY_BASE_16);
1503 break;
1504
1505 case SIDE_TYPE_DYNAMIC_FLOAT:
1506 tracer_print_type_float("::", &item->u.side_dynamic.side_float.type,
1507 &item->u.side_dynamic.side_float.value);
1508 break;
1509
1510 case SIDE_TYPE_DYNAMIC_STRING:
1511 tracer_print_type_header("::", item->u.side_dynamic.side_string.type.attr, item->u.side_dynamic.side_string.type.nr_attr);
1512 printf("\"%s\"", (const char *)(uintptr_t) item->u.side_dynamic.side_string.value);
1513 break;
1514 case SIDE_TYPE_DYNAMIC_STRUCT:
1515 tracer_print_dynamic_struct(item->u.side_dynamic.side_dynamic_struct);
1516 break;
1517 case SIDE_TYPE_DYNAMIC_STRUCT_VISITOR:
1518 tracer_print_dynamic_struct_visitor(item);
1519 break;
1520 case SIDE_TYPE_DYNAMIC_VLA:
1521 tracer_print_dynamic_vla(item->u.side_dynamic.side_dynamic_vla);
1522 break;
1523 case SIDE_TYPE_DYNAMIC_VLA_VISITOR:
1524 tracer_print_dynamic_vla_visitor(item);
1525 break;
1526 default:
1527 fprintf(stderr, "<UNKNOWN TYPE>\n");
1528 abort();
1529 }
1530 printf(" }");
1531 }
1532
1533 static
1534 void tracer_print_static_fields(const struct side_event_description *desc,
1535 const struct side_arg_vec *side_arg_vec,
1536 uint32_t *nr_items)
1537 {
1538 const struct side_arg *sav = side_arg_vec->sav;
1539 uint32_t i, side_sav_len = side_arg_vec->len;
1540
1541 printf("provider: %s, event: %s", desc->provider_name, desc->event_name);
1542 if (desc->nr_fields != side_sav_len) {
1543 fprintf(stderr, "ERROR: number of fields mismatch between description and arguments\n");
1544 abort();
1545 }
1546 print_attributes(", attr", ":", desc->attr, desc->nr_attr);
1547 printf("%s", side_sav_len ? ", fields: [ " : "");
1548 for (i = 0; i < side_sav_len; i++) {
1549 printf("%s", i ? ", " : "");
1550 tracer_print_field(&desc->fields[i], &sav[i]);
1551 }
1552 if (nr_items)
1553 *nr_items = i;
1554 if (side_sav_len)
1555 printf(" ]");
1556 }
1557
1558 void tracer_call(const struct side_event_description *desc,
1559 const struct side_arg_vec *side_arg_vec,
1560 void *priv __attribute__((unused)))
1561 {
1562 uint32_t nr_fields = 0;
1563
1564 tracer_print_static_fields(desc, side_arg_vec, &nr_fields);
1565 printf("\n");
1566 }
1567
1568 void tracer_call_variadic(const struct side_event_description *desc,
1569 const struct side_arg_vec *side_arg_vec,
1570 const struct side_arg_dynamic_struct *var_struct,
1571 void *priv __attribute__((unused)))
1572 {
1573 uint32_t nr_fields = 0, i, var_struct_len = var_struct->len;
1574
1575 tracer_print_static_fields(desc, side_arg_vec, &nr_fields);
1576
1577 if (side_unlikely(!(desc->flags & SIDE_EVENT_FLAG_VARIADIC))) {
1578 fprintf(stderr, "ERROR: unexpected non-variadic event description\n");
1579 abort();
1580 }
1581 print_attributes(", attr ", "::", var_struct->attr, var_struct->nr_attr);
1582 printf("%s", var_struct_len ? ", fields:: [ " : "");
1583 for (i = 0; i < var_struct_len; i++, nr_fields++) {
1584 printf("%s", i ? ", " : "");
1585 printf("%s:: ", var_struct->fields[i].field_name);
1586 tracer_print_dynamic(&var_struct->fields[i].elem);
1587 }
1588 if (i)
1589 printf(" ]");
1590 printf("\n");
1591 }
1592
1593 void tracer_event_notification(enum side_tracer_notification notif,
1594 struct side_event_description **events, uint32_t nr_events, void *priv)
1595 {
1596 uint32_t i;
1597 int ret;
1598
1599 printf("----------------------------------------------------------\n");
1600 printf("Tracer notified of events %s\n",
1601 notif == SIDE_TRACER_NOTIFICATION_INSERT_EVENTS ? "inserted" : "removed");
1602 for (i = 0; i < nr_events; i++) {
1603 struct side_event_description *event = events[i];
1604
1605 /* Skip NULL pointers */
1606 if (!event)
1607 continue;
1608 printf("provider: %s, event: %s\n",
1609 event->provider_name, event->event_name);
1610 if (notif == SIDE_TRACER_NOTIFICATION_INSERT_EVENTS) {
1611 if (event->flags & SIDE_EVENT_FLAG_VARIADIC) {
1612 ret = side_tracer_callback_variadic_register(event, tracer_call_variadic, NULL);
1613 if (ret)
1614 abort();
1615 } else {
1616 ret = side_tracer_callback_register(event, tracer_call, NULL);
1617 if (ret)
1618 abort();
1619 }
1620 } else {
1621 if (event->flags & SIDE_EVENT_FLAG_VARIADIC) {
1622 ret = side_tracer_callback_variadic_unregister(event, tracer_call_variadic, NULL);
1623 if (ret)
1624 abort();
1625 } else {
1626 ret = side_tracer_callback_unregister(event, tracer_call, NULL);
1627 if (ret)
1628 abort();
1629 }
1630 }
1631 }
1632 printf("----------------------------------------------------------\n");
1633 }
1634
1635 static __attribute__((constructor))
1636 void tracer_init(void);
1637 static
1638 void tracer_init(void)
1639 {
1640 tracer_handle = side_tracer_event_notification_register(tracer_event_notification, NULL);
1641 if (!tracer_handle)
1642 abort();
1643 }
1644
1645 static __attribute__((destructor))
1646 void tracer_exit(void);
1647 static
1648 void tracer_exit(void)
1649 {
1650 side_tracer_event_notification_unregister(tracer_handle);
1651 }
Software Instrumentation Dynamically Enabled
This page took 0.065631 seconds and 3 git commands to generate.