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[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 #include <iconv.h>
13
14 #include <side/trace.h>
15
16 enum tracer_display_base {
17 TRACER_DISPLAY_BASE_2,
18 TRACER_DISPLAY_BASE_8,
19 TRACER_DISPLAY_BASE_10,
20 TRACER_DISPLAY_BASE_16,
21 };
22
23 union int_value {
24 uint64_t u[NR_SIDE_INTEGER128_SPLIT];
25 int64_t s[NR_SIDE_INTEGER128_SPLIT];
26 };
27
28 static struct side_tracer_handle *tracer_handle;
29
30 static
31 void tracer_print_struct(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
32 static
33 void tracer_print_variant(const struct side_type *type_desc, const struct side_arg_variant *side_arg_variant);
34 static
35 void tracer_print_array(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
36 static
37 void tracer_print_vla(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
38 static
39 void tracer_print_vla_visitor(const struct side_type *type_desc, void *app_ctx);
40 static
41 void tracer_print_dynamic(const struct side_arg *dynamic_item);
42 static
43 uint32_t tracer_print_gather_bool_type(const struct side_type_gather *type_gather, const void *_ptr);
44 static
45 uint32_t tracer_print_gather_byte_type(const struct side_type_gather *type_gather, const void *_ptr);
46 static
47 uint32_t tracer_print_gather_integer_type(const struct side_type_gather *type_gather, const void *_ptr,
48 enum tracer_display_base default_base);
49 static
50 uint32_t tracer_print_gather_float_type(const struct side_type_gather *type_gather, const void *_ptr);
51 static
52 uint32_t tracer_print_gather_string_type(const struct side_type_gather *type_gather, const void *_ptr);
53 static
54 uint32_t tracer_print_gather_enum_type(const struct side_type_gather *type_gather, const void *_ptr);
55 static
56 uint32_t tracer_print_gather_struct(const struct side_type_gather *type_gather, const void *_ptr);
57 static
58 uint32_t tracer_print_gather_array(const struct side_type_gather *type_gather, const void *_ptr);
59 static
60 uint32_t tracer_print_gather_vla(const struct side_type_gather *type_gather, const void *_ptr,
61 const void *_length_ptr);
62 static
63 void tracer_print_type(const struct side_type *type_desc, const struct side_arg *item);
64
65 static
66 void tracer_convert_string_to_utf8(const void *p, uint8_t unit_size, enum side_type_label_byte_order byte_order,
67 size_t *strlen_with_null,
68 char **output_str)
69 {
70 size_t ret, inbytesleft = 0, outbytesleft, bufsize;
71 const char *str = p, *fromcode;
72 char *inbuf = (char *) p, *outbuf, *buf;
73 iconv_t cd;
74
75 switch (unit_size) {
76 case 1:
77 if (strlen_with_null)
78 *strlen_with_null = strlen(str) + 1;
79 *output_str = (char *) str;
80 return;
81 case 2:
82 {
83 const uint16_t *p16 = p;
84
85 switch (byte_order) {
86 case SIDE_TYPE_BYTE_ORDER_LE:
87 {
88 fromcode = "UTF-16LE";
89 break;
90 }
91 case SIDE_TYPE_BYTE_ORDER_BE:
92 {
93 fromcode = "UTF-16BE";
94 break;
95 }
96 default:
97 fprintf(stderr, "Unknown byte order\n");
98 abort();
99 }
100 for (; *p16; p16++)
101 inbytesleft += 2;
102 /*
103 * Worse case is U+FFFF UTF-16 (2 bytes) converting to
104 * { ef, bf, bf } UTF-8 (3 bytes).
105 */
106 bufsize = inbytesleft / 2 * 3 + 1;
107 break;
108 }
109 case 4:
110 {
111 const uint32_t *p32 = p;
112
113 switch (byte_order) {
114 case SIDE_TYPE_BYTE_ORDER_LE:
115 {
116 fromcode = "UTF-32LE";
117 break;
118 }
119 case SIDE_TYPE_BYTE_ORDER_BE:
120 {
121 fromcode = "UTF-32BE";
122 break;
123 }
124 default:
125 fprintf(stderr, "Unknown byte order\n");
126 abort();
127 }
128 for (; *p32; p32++)
129 inbytesleft += 4;
130 /*
131 * Each 4-byte UTF-32 character converts to at most a
132 * 4-byte UTF-8 character.
133 */
134 bufsize = inbytesleft + 1;
135 break;
136 }
137 default:
138 fprintf(stderr, "Unknown string unit size %" PRIu8 "\n", unit_size);
139 abort();
140 }
141
142 cd = iconv_open("UTF8", fromcode);
143 if (cd == (iconv_t) -1) {
144 perror("iconv_open");
145 abort();
146 }
147 buf = malloc(bufsize);
148 if (!buf) {
149 abort();
150 }
151 outbuf = (char *) buf;
152 outbytesleft = bufsize;
153 ret = iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
154 if (ret == (size_t) -1) {
155 perror("iconv");
156 abort();
157 }
158 if (inbytesleft) {
159 fprintf(stderr, "Buffer too small to convert string input\n");
160 abort();
161 }
162 (*outbuf++) = '\0';
163 if (iconv_close(cd) == -1) {
164 perror("iconv_close");
165 abort();
166 }
167 if (strlen_with_null)
168 *strlen_with_null = outbuf - buf;
169 *output_str = buf;
170 }
171
172 static
173 void tracer_print_string(const void *p, uint8_t unit_size, enum side_type_label_byte_order byte_order,
174 size_t *strlen_with_null)
175 {
176 char *output_str = NULL;
177
178 tracer_convert_string_to_utf8(p, unit_size, byte_order, strlen_with_null, &output_str);
179 printf("\"%s\"", output_str);
180 if (output_str != p)
181 free(output_str);
182 }
183
184 static
185 void side_check_value_u64(union int_value v)
186 {
187 if (v.u[SIDE_INTEGER128_SPLIT_HIGH]) {
188 fprintf(stderr, "Unexpected integer value\n");
189 abort();
190 }
191 }
192
193 static
194 void side_check_value_s64(union int_value v)
195 {
196 if (v.s[SIDE_INTEGER128_SPLIT_LOW] & (1ULL << 63)) {
197 if (v.s[SIDE_INTEGER128_SPLIT_HIGH] != ~0LL) {
198 fprintf(stderr, "Unexpected integer value\n");
199 abort();
200 }
201 } else {
202 if (v.s[SIDE_INTEGER128_SPLIT_HIGH]) {
203 fprintf(stderr, "Unexpected integer value\n");
204 abort();
205 }
206 }
207 }
208
209 static
210 int64_t get_attr_integer64_value(const struct side_attr *attr)
211 {
212 int64_t val;
213
214 switch (side_enum_get(attr->value.type)) {
215 case SIDE_ATTR_TYPE_U8:
216 val = attr->value.u.integer_value.side_u8;
217 break;
218 case SIDE_ATTR_TYPE_U16:
219 val = attr->value.u.integer_value.side_u16;
220 break;
221 case SIDE_ATTR_TYPE_U32:
222 val = attr->value.u.integer_value.side_u32;
223 break;
224 case SIDE_ATTR_TYPE_U64:
225 val = attr->value.u.integer_value.side_u64;
226 break;
227 case SIDE_ATTR_TYPE_U128:
228 {
229 union int_value v = {
230 .u = {
231 [SIDE_INTEGER128_SPLIT_LOW] = attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_LOW],
232 [SIDE_INTEGER128_SPLIT_HIGH] = attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_HIGH],
233 },
234 };
235 side_check_value_u64(v);
236 val = v.u[SIDE_INTEGER128_SPLIT_LOW];
237 break;
238 }
239 case SIDE_ATTR_TYPE_S8:
240 val = attr->value.u.integer_value.side_s8;
241 break;
242 case SIDE_ATTR_TYPE_S16:
243 val = attr->value.u.integer_value.side_s16;
244 break;
245 case SIDE_ATTR_TYPE_S32:
246 val = attr->value.u.integer_value.side_s32;
247 break;
248 case SIDE_ATTR_TYPE_S64:
249 val = attr->value.u.integer_value.side_s64;
250 break;
251 case SIDE_ATTR_TYPE_S128:
252 {
253 union int_value v = {
254 .s = {
255 [SIDE_INTEGER128_SPLIT_LOW] = attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_LOW],
256 [SIDE_INTEGER128_SPLIT_HIGH] = attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_HIGH],
257 },
258 };
259 side_check_value_s64(v);
260 val = v.s[SIDE_INTEGER128_SPLIT_LOW];
261 break;
262 }
263 default:
264 fprintf(stderr, "Unexpected attribute type\n");
265 abort();
266 }
267 return val;
268 }
269
270 static
271 enum tracer_display_base get_attr_display_base(const struct side_attr *_attr, uint32_t nr_attr,
272 enum tracer_display_base default_base)
273 {
274 uint32_t i;
275
276 for (i = 0; i < nr_attr; i++) {
277 const struct side_attr *attr = &_attr[i];
278 char *utf8_str = NULL;
279 bool cmp;
280
281 tracer_convert_string_to_utf8(side_ptr_get(attr->key.p), attr->key.unit_size,
282 side_enum_get(attr->key.byte_order), NULL, &utf8_str);
283 cmp = strcmp(utf8_str, "std.integer.base");
284 if (utf8_str != side_ptr_get(attr->key.p))
285 free(utf8_str);
286 if (!cmp) {
287 int64_t val = get_attr_integer64_value(attr);
288
289 switch (val) {
290 case 2:
291 return TRACER_DISPLAY_BASE_2;
292 case 8:
293 return TRACER_DISPLAY_BASE_8;
294 case 10:
295 return TRACER_DISPLAY_BASE_10;
296 case 16:
297 return TRACER_DISPLAY_BASE_16;
298 default:
299 fprintf(stderr, "Unexpected integer display base: %" PRId64 "\n", val);
300 abort();
301 }
302 }
303 }
304 return default_base; /* Default */
305 }
306
307 static
308 void tracer_print_attr_type(const char *separator, const struct side_attr *attr)
309 {
310 char *utf8_str = NULL;
311
312 tracer_convert_string_to_utf8(side_ptr_get(attr->key.p), attr->key.unit_size,
313 side_enum_get(attr->key.byte_order), NULL, &utf8_str);
314 printf("{ key%s \"%s\", value%s ", separator, utf8_str, separator);
315 if (utf8_str != side_ptr_get(attr->key.p))
316 free(utf8_str);
317 switch (side_enum_get(attr->value.type)) {
318 case SIDE_ATTR_TYPE_BOOL:
319 printf("%s", attr->value.u.bool_value ? "true" : "false");
320 break;
321 case SIDE_ATTR_TYPE_U8:
322 printf("%" PRIu8, attr->value.u.integer_value.side_u8);
323 break;
324 case SIDE_ATTR_TYPE_U16:
325 printf("%" PRIu16, attr->value.u.integer_value.side_u16);
326 break;
327 case SIDE_ATTR_TYPE_U32:
328 printf("%" PRIu32, attr->value.u.integer_value.side_u32);
329 break;
330 case SIDE_ATTR_TYPE_U64:
331 printf("%" PRIu64, attr->value.u.integer_value.side_u64);
332 break;
333 case SIDE_ATTR_TYPE_U128:
334 if (attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_HIGH] == 0) {
335 printf("0x%" PRIx64, attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_LOW]);
336 } else {
337 printf("0x%" PRIx64 "%016" PRIx64,
338 attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_HIGH],
339 attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_LOW]);
340 }
341 break;
342 case SIDE_ATTR_TYPE_S8:
343 printf("%" PRId8, attr->value.u.integer_value.side_s8);
344 break;
345 case SIDE_ATTR_TYPE_S16:
346 printf("%" PRId16, attr->value.u.integer_value.side_s16);
347 break;
348 case SIDE_ATTR_TYPE_S32:
349 printf("%" PRId32, attr->value.u.integer_value.side_s32);
350 break;
351 case SIDE_ATTR_TYPE_S64:
352 printf("%" PRId64, attr->value.u.integer_value.side_s64);
353 break;
354 case SIDE_ATTR_TYPE_S128:
355 if (attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_HIGH] == 0) {
356 printf("0x%" PRIx64, attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_LOW]);
357 } else {
358 printf("0x%" PRIx64 "%016" PRIx64,
359 attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_HIGH],
360 attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_LOW]);
361 }
362 break;
363 case SIDE_ATTR_TYPE_FLOAT_BINARY16:
364 #if __HAVE_FLOAT16
365 printf("%g", (double) attr->value.u.float_value.side_float_binary16);
366 break;
367 #else
368 fprintf(stderr, "ERROR: Unsupported binary16 float type\n");
369 abort();
370 #endif
371 case SIDE_ATTR_TYPE_FLOAT_BINARY32:
372 #if __HAVE_FLOAT32
373 printf("%g", (double) attr->value.u.float_value.side_float_binary32);
374 break;
375 #else
376 fprintf(stderr, "ERROR: Unsupported binary32 float type\n");
377 abort();
378 #endif
379 case SIDE_ATTR_TYPE_FLOAT_BINARY64:
380 #if __HAVE_FLOAT64
381 printf("%g", (double) attr->value.u.float_value.side_float_binary64);
382 break;
383 #else
384 fprintf(stderr, "ERROR: Unsupported binary64 float type\n");
385 abort();
386 #endif
387 case SIDE_ATTR_TYPE_FLOAT_BINARY128:
388 #if __HAVE_FLOAT128
389 printf("%Lg", (long double) attr->value.u.float_value.side_float_binary128);
390 break;
391 #else
392 fprintf(stderr, "ERROR: Unsupported binary128 float type\n");
393 abort();
394 #endif
395 case SIDE_ATTR_TYPE_STRING:
396 tracer_print_string(side_ptr_get(attr->value.u.string_value.p),
397 attr->value.u.string_value.unit_size,
398 side_enum_get(attr->value.u.string_value.byte_order), NULL);
399 break;
400 default:
401 fprintf(stderr, "ERROR: <UNKNOWN ATTRIBUTE TYPE>");
402 abort();
403 }
404 printf(" }");
405 }
406
407 static
408 void print_attributes(const char *prefix_str, const char *separator,
409 const struct side_attr *attr, uint32_t nr_attr)
410 {
411 uint32_t i;
412
413 if (!nr_attr)
414 return;
415 printf("%s%s [ ", prefix_str, separator);
416 for (i = 0; i < nr_attr; i++) {
417 printf("%s", i ? ", " : "");
418 tracer_print_attr_type(separator, &attr[i]);
419 }
420 printf(" ]");
421 }
422
423 static
424 union int_value tracer_load_integer_value(const struct side_type_integer *type_integer,
425 const union side_integer_value *value,
426 uint16_t offset_bits, uint16_t *_len_bits)
427 {
428 union int_value v = {};
429 uint16_t len_bits;
430 bool reverse_bo;
431
432 if (!type_integer->len_bits)
433 len_bits = type_integer->integer_size * CHAR_BIT;
434 else
435 len_bits = type_integer->len_bits;
436 if (len_bits + offset_bits > type_integer->integer_size * CHAR_BIT)
437 abort();
438 reverse_bo = side_enum_get(type_integer->byte_order) != SIDE_TYPE_BYTE_ORDER_HOST;
439 switch (type_integer->integer_size) {
440 case 1:
441 if (type_integer->signedness)
442 v.s[SIDE_INTEGER128_SPLIT_LOW] = value->side_s8;
443 else
444 v.u[SIDE_INTEGER128_SPLIT_LOW] = value->side_u8;
445 break;
446 case 2:
447 if (type_integer->signedness) {
448 int16_t side_s16;
449
450 side_s16 = value->side_s16;
451 if (reverse_bo)
452 side_s16 = side_bswap_16(side_s16);
453 v.s[SIDE_INTEGER128_SPLIT_LOW] = side_s16;
454 } else {
455 uint16_t side_u16;
456
457 side_u16 = value->side_u16;
458 if (reverse_bo)
459 side_u16 = side_bswap_16(side_u16);
460 v.u[SIDE_INTEGER128_SPLIT_LOW] = side_u16;
461 }
462 break;
463 case 4:
464 if (type_integer->signedness) {
465 int32_t side_s32;
466
467 side_s32 = value->side_s32;
468 if (reverse_bo)
469 side_s32 = side_bswap_32(side_s32);
470 v.s[SIDE_INTEGER128_SPLIT_LOW] = side_s32;
471 } else {
472 uint32_t side_u32;
473
474 side_u32 = value->side_u32;
475 if (reverse_bo)
476 side_u32 = side_bswap_32(side_u32);
477 v.u[SIDE_INTEGER128_SPLIT_LOW] = side_u32;
478 }
479 break;
480 case 8:
481 if (type_integer->signedness) {
482 int64_t side_s64;
483
484 side_s64 = value->side_s64;
485 if (reverse_bo)
486 side_s64 = side_bswap_64(side_s64);
487 v.s[SIDE_INTEGER128_SPLIT_LOW] = side_s64;
488 } else {
489 uint64_t side_u64;
490
491 side_u64 = value->side_u64;
492 if (reverse_bo)
493 side_u64 = side_bswap_64(side_u64);
494 v.u[SIDE_INTEGER128_SPLIT_LOW] = side_u64;
495 }
496 break;
497 case 16:
498 if (type_integer->signedness) {
499 int64_t side_s64[NR_SIDE_INTEGER128_SPLIT];
500
501 side_s64[SIDE_INTEGER128_SPLIT_LOW] = value->side_s128_split[SIDE_INTEGER128_SPLIT_LOW];
502 side_s64[SIDE_INTEGER128_SPLIT_HIGH] = value->side_s128_split[SIDE_INTEGER128_SPLIT_HIGH];
503 if (reverse_bo) {
504 side_s64[SIDE_INTEGER128_SPLIT_LOW] = side_bswap_64(side_s64[SIDE_INTEGER128_SPLIT_LOW]);
505 side_s64[SIDE_INTEGER128_SPLIT_HIGH] = side_bswap_64(side_s64[SIDE_INTEGER128_SPLIT_HIGH]);
506 v.s[SIDE_INTEGER128_SPLIT_LOW] = side_s64[SIDE_INTEGER128_SPLIT_HIGH];
507 v.s[SIDE_INTEGER128_SPLIT_HIGH] = side_s64[SIDE_INTEGER128_SPLIT_LOW];
508 } else {
509 v.s[SIDE_INTEGER128_SPLIT_LOW] = side_s64[SIDE_INTEGER128_SPLIT_LOW];
510 v.s[SIDE_INTEGER128_SPLIT_HIGH] = side_s64[SIDE_INTEGER128_SPLIT_HIGH];
511 }
512 } else {
513 uint64_t side_u64[NR_SIDE_INTEGER128_SPLIT];
514
515 side_u64[SIDE_INTEGER128_SPLIT_LOW] = value->side_u128_split[SIDE_INTEGER128_SPLIT_LOW];
516 side_u64[SIDE_INTEGER128_SPLIT_HIGH] = value->side_u128_split[SIDE_INTEGER128_SPLIT_HIGH];
517 if (reverse_bo) {
518 side_u64[SIDE_INTEGER128_SPLIT_LOW] = side_bswap_64(side_u64[SIDE_INTEGER128_SPLIT_LOW]);
519 side_u64[SIDE_INTEGER128_SPLIT_HIGH] = side_bswap_64(side_u64[SIDE_INTEGER128_SPLIT_HIGH]);
520 v.u[SIDE_INTEGER128_SPLIT_LOW] = side_u64[SIDE_INTEGER128_SPLIT_HIGH];
521 v.u[SIDE_INTEGER128_SPLIT_HIGH] = side_u64[SIDE_INTEGER128_SPLIT_LOW];
522 } else {
523 v.u[SIDE_INTEGER128_SPLIT_LOW] = side_u64[SIDE_INTEGER128_SPLIT_LOW];
524 v.u[SIDE_INTEGER128_SPLIT_HIGH] = side_u64[SIDE_INTEGER128_SPLIT_HIGH];
525 }
526 }
527 break;
528 default:
529 abort();
530 }
531 if (type_integer->integer_size <= 8) {
532 v.u[SIDE_INTEGER128_SPLIT_LOW] >>= offset_bits;
533 if (len_bits < 64) {
534 v.u[SIDE_INTEGER128_SPLIT_LOW] &= (1ULL << len_bits) - 1;
535 if (type_integer->signedness) {
536 /* Sign-extend. */
537 if (v.u[SIDE_INTEGER128_SPLIT_LOW] & (1ULL << (len_bits - 1))) {
538 v.u[SIDE_INTEGER128_SPLIT_LOW] |= ~((1ULL << len_bits) - 1);
539 v.u[SIDE_INTEGER128_SPLIT_HIGH] = ~0ULL;
540 }
541 }
542 }
543 } else {
544 //TODO: Implement 128-bit integer with len_bits != 128 or nonzero offset_bits
545 if (len_bits < 128 || offset_bits != 0)
546 abort();
547 }
548 if (_len_bits)
549 *_len_bits = len_bits;
550 return v;
551 }
552
553 static
554 void print_enum_labels(const struct side_enum_mappings *mappings, union int_value v)
555 {
556 uint32_t i, print_count = 0;
557
558 side_check_value_s64(v);
559 printf(", labels: [ ");
560 for (i = 0; i < mappings->nr_mappings; i++) {
561 const struct side_enum_mapping *mapping = &side_ptr_get(mappings->mappings)[i];
562
563 if (mapping->range_end < mapping->range_begin) {
564 fprintf(stderr, "ERROR: Unexpected enum range: %" PRIu64 "-%" PRIu64 "\n",
565 mapping->range_begin, mapping->range_end);
566 abort();
567 }
568 if (v.s[SIDE_INTEGER128_SPLIT_LOW] >= mapping->range_begin && v.s[SIDE_INTEGER128_SPLIT_LOW] <= mapping->range_end) {
569 printf("%s", print_count++ ? ", " : "");
570 tracer_print_string(side_ptr_get(mapping->label.p), mapping->label.unit_size,
571 side_enum_get(mapping->label.byte_order), NULL);
572 }
573 }
574 if (!print_count)
575 printf("<NO LABEL>");
576 printf(" ]");
577 }
578
579 static
580 void tracer_print_enum(const struct side_type *type_desc, const struct side_arg *item)
581 {
582 const struct side_enum_mappings *mappings = side_ptr_get(type_desc->u.side_enum.mappings);
583 const struct side_type *elem_type = side_ptr_get(type_desc->u.side_enum.elem_type);
584 union int_value v;
585
586 if (side_enum_get(elem_type->type) != side_enum_get(item->type)) {
587 fprintf(stderr, "ERROR: Unexpected enum element type\n");
588 abort();
589 }
590 v = tracer_load_integer_value(&elem_type->u.side_integer,
591 &item->u.side_static.integer_value, 0, NULL);
592 print_attributes("attr", ":", side_ptr_get(mappings->attr), mappings->nr_attr);
593 printf("%s", mappings->nr_attr ? ", " : "");
594 tracer_print_type(elem_type, item);
595 print_enum_labels(mappings, v);
596 }
597
598 static
599 uint32_t elem_type_to_stride(const struct side_type *elem_type)
600 {
601 uint32_t stride_bit;
602
603 switch (side_enum_get(elem_type->type)) {
604 case SIDE_TYPE_BYTE:
605 stride_bit = 8;
606 break;
607
608 case SIDE_TYPE_U8:
609 case SIDE_TYPE_U16:
610 case SIDE_TYPE_U32:
611 case SIDE_TYPE_U64:
612 case SIDE_TYPE_U128:
613 case SIDE_TYPE_S8:
614 case SIDE_TYPE_S16:
615 case SIDE_TYPE_S32:
616 case SIDE_TYPE_S64:
617 case SIDE_TYPE_S128:
618 return elem_type->u.side_integer.integer_size * CHAR_BIT;
619 default:
620 fprintf(stderr, "ERROR: Unexpected enum bitmap element type\n");
621 abort();
622 }
623 return stride_bit;
624 }
625
626 static
627 void tracer_print_enum_bitmap(const struct side_type *type_desc,
628 const struct side_arg *item)
629 {
630 const struct side_enum_bitmap_mappings *side_enum_mappings = side_ptr_get(type_desc->u.side_enum_bitmap.mappings);
631 const struct side_type *enum_elem_type = side_ptr_get(type_desc->u.side_enum_bitmap.elem_type), *elem_type;
632 uint32_t i, print_count = 0, stride_bit, nr_items;
633 const struct side_arg *array_item;
634
635 switch (side_enum_get(enum_elem_type->type)) {
636 case SIDE_TYPE_U8: /* Fall-through */
637 case SIDE_TYPE_BYTE: /* Fall-through */
638 case SIDE_TYPE_U16: /* Fall-through */
639 case SIDE_TYPE_U32: /* Fall-through */
640 case SIDE_TYPE_U64: /* Fall-through */
641 case SIDE_TYPE_U128: /* Fall-through */
642 case SIDE_TYPE_S8: /* Fall-through */
643 case SIDE_TYPE_S16: /* Fall-through */
644 case SIDE_TYPE_S32: /* Fall-through */
645 case SIDE_TYPE_S64: /* Fall-through */
646 case SIDE_TYPE_S128:
647 elem_type = enum_elem_type;
648 array_item = item;
649 nr_items = 1;
650 break;
651 case SIDE_TYPE_ARRAY:
652 elem_type = side_ptr_get(enum_elem_type->u.side_array.elem_type);
653 array_item = side_ptr_get(side_ptr_get(item->u.side_static.side_array)->sav);
654 nr_items = type_desc->u.side_array.length;
655 break;
656 case SIDE_TYPE_VLA:
657 elem_type = side_ptr_get(enum_elem_type->u.side_vla.elem_type);
658 array_item = side_ptr_get(side_ptr_get(item->u.side_static.side_vla)->sav);
659 nr_items = side_ptr_get(item->u.side_static.side_vla)->len;
660 break;
661 default:
662 fprintf(stderr, "ERROR: Unexpected enum element type\n");
663 abort();
664 }
665 stride_bit = elem_type_to_stride(elem_type);
666
667 print_attributes("attr", ":", side_ptr_get(side_enum_mappings->attr), side_enum_mappings->nr_attr);
668 printf("%s", side_enum_mappings->nr_attr ? ", " : "");
669 printf("labels: [ ");
670 for (i = 0; i < side_enum_mappings->nr_mappings; i++) {
671 const struct side_enum_bitmap_mapping *mapping = &side_ptr_get(side_enum_mappings->mappings)[i];
672 bool match = false;
673 uint64_t bit;
674
675 if (mapping->range_end < mapping->range_begin) {
676 fprintf(stderr, "ERROR: Unexpected enum bitmap range: %" PRIu64 "-%" PRIu64 "\n",
677 mapping->range_begin, mapping->range_end);
678 abort();
679 }
680 for (bit = mapping->range_begin; bit <= mapping->range_end; bit++) {
681 if (bit > (nr_items * stride_bit) - 1)
682 break;
683 if (side_enum_get(elem_type->type) == SIDE_TYPE_BYTE) {
684 uint8_t v = array_item[bit / 8].u.side_static.byte_value;
685 if (v & (1ULL << (bit % 8))) {
686 match = true;
687 goto match;
688 }
689 } else {
690 union int_value v = {};
691
692 v = tracer_load_integer_value(&elem_type->u.side_integer,
693 &array_item[bit / stride_bit].u.side_static.integer_value,
694 0, NULL);
695 side_check_value_u64(v);
696 if (v.u[SIDE_INTEGER128_SPLIT_LOW] & (1ULL << (bit % stride_bit))) {
697 match = true;
698 goto match;
699 }
700 }
701 }
702 match:
703 if (match) {
704 printf("%s", print_count++ ? ", " : "");
705 tracer_print_string(side_ptr_get(mapping->label.p), mapping->label.unit_size,
706 side_enum_get(mapping->label.byte_order), NULL);
707 }
708 }
709 if (!print_count)
710 printf("<NO LABEL>");
711 printf(" ]");
712 }
713
714 static
715 void print_integer_binary(uint64_t v[NR_SIDE_INTEGER128_SPLIT], int bits)
716 {
717 int bit;
718
719 printf("0b");
720 if (bits > 64) {
721 bits -= 64;
722 v[SIDE_INTEGER128_SPLIT_HIGH] <<= 64 - bits;
723 for (bit = 0; bit < bits; bit++) {
724 printf("%c", v[SIDE_INTEGER128_SPLIT_HIGH] & (1ULL << 63) ? '1' : '0');
725 v[SIDE_INTEGER128_SPLIT_HIGH] <<= 1;
726 }
727 bits = 64;
728 }
729 v[SIDE_INTEGER128_SPLIT_LOW] <<= 64 - bits;
730 for (bit = 0; bit < bits; bit++) {
731 printf("%c", v[SIDE_INTEGER128_SPLIT_LOW] & (1ULL << 63) ? '1' : '0');
732 v[SIDE_INTEGER128_SPLIT_LOW] <<= 1;
733 }
734 }
735
736 static
737 void tracer_print_type_header(const char *separator,
738 const struct side_attr *attr, uint32_t nr_attr)
739 {
740 print_attributes("attr", separator, attr, nr_attr);
741 printf("%s", nr_attr ? ", " : "");
742 printf("value%s ", separator);
743 }
744
745 static
746 void tracer_print_type_bool(const char *separator,
747 const struct side_type_bool *type_bool,
748 const union side_bool_value *value,
749 uint16_t offset_bits)
750 {
751 uint32_t len_bits;
752 bool reverse_bo;
753 uint64_t v;
754
755 if (!type_bool->len_bits)
756 len_bits = type_bool->bool_size * CHAR_BIT;
757 else
758 len_bits = type_bool->len_bits;
759 if (len_bits + offset_bits > type_bool->bool_size * CHAR_BIT)
760 abort();
761 reverse_bo = side_enum_get(type_bool->byte_order) != SIDE_TYPE_BYTE_ORDER_HOST;
762 switch (type_bool->bool_size) {
763 case 1:
764 v = value->side_bool8;
765 break;
766 case 2:
767 {
768 uint16_t side_u16;
769
770 side_u16 = value->side_bool16;
771 if (reverse_bo)
772 side_u16 = side_bswap_16(side_u16);
773 v = side_u16;
774 break;
775 }
776 case 4:
777 {
778 uint32_t side_u32;
779
780 side_u32 = value->side_bool32;
781 if (reverse_bo)
782 side_u32 = side_bswap_32(side_u32);
783 v = side_u32;
784 break;
785 }
786 case 8:
787 {
788 uint64_t side_u64;
789
790 side_u64 = value->side_bool64;
791 if (reverse_bo)
792 side_u64 = side_bswap_64(side_u64);
793 v = side_u64;
794 break;
795 }
796 default:
797 abort();
798 }
799 v >>= offset_bits;
800 if (len_bits < 64)
801 v &= (1ULL << len_bits) - 1;
802 tracer_print_type_header(separator, side_ptr_get(type_bool->attr), type_bool->nr_attr);
803 printf("%s", v ? "true" : "false");
804 }
805
806 /* 2^128 - 1 */
807 #define U128_BASE_10_ARRAY_LEN sizeof("340282366920938463463374607431768211455")
808 /* -2^127 */
809 #define S128_BASE_10_ARRAY_LEN sizeof("-170141183460469231731687303715884105728")
810
811 /*
812 * u128_tostring_base_10 is inspired from https://stackoverflow.com/a/4364365
813 */
814 static
815 void u128_tostring_base_10(union int_value v, char str[U128_BASE_10_ARRAY_LEN])
816 {
817 int d[39] = {}, i, j, str_i = 0;
818
819 for (i = 63; i > -1; i--) {
820 if ((v.u[SIDE_INTEGER128_SPLIT_HIGH] >> i) & 1)
821 d[0]++;
822 for (j = 0; j < 39; j++)
823 d[j] *= 2;
824 for (j = 0; j < 38; j++) {
825 d[j + 1] += d[j] / 10;
826 d[j] %= 10;
827 }
828 }
829 for (i = 63; i > -1; i--) {
830 if ((v.u[SIDE_INTEGER128_SPLIT_LOW] >> i) & 1)
831 d[0]++;
832 if (i > 0) {
833 for (j = 0; j < 39; j++)
834 d[j] *= 2;
835 }
836 for (j = 0; j < 38; j++) {
837 d[j + 1] += d[j] / 10;
838 d[j] %= 10;
839 }
840 }
841 for (i = 38; i > 0; i--)
842 if (d[i] > 0)
843 break;
844 for (; i > -1; i--) {
845 str[str_i++] = '0' + d[i];
846 }
847 str[str_i] = '\0';
848 }
849
850 static
851 void s128_tostring_base_10(union int_value v, char str[S128_BASE_10_ARRAY_LEN])
852 {
853 uint64_t low, high, tmp;
854
855 if (v.s[SIDE_INTEGER128_SPLIT_HIGH] >= 0) {
856 /* Positive. */
857 v.u[SIDE_INTEGER128_SPLIT_LOW] = (uint64_t) v.s[SIDE_INTEGER128_SPLIT_LOW];
858 v.u[SIDE_INTEGER128_SPLIT_HIGH] = (uint64_t) v.s[SIDE_INTEGER128_SPLIT_HIGH];
859 u128_tostring_base_10(v, str);
860 return;
861 }
862
863 /* Negative. */
864
865 /* Special-case minimum value, which has no positive signed representation. */
866 if ((v.s[SIDE_INTEGER128_SPLIT_HIGH] == INT64_MIN) && (v.s[SIDE_INTEGER128_SPLIT_LOW] == 0)) {
867 memcpy(str, "-170141183460469231731687303715884105728", S128_BASE_10_ARRAY_LEN);
868 return;
869 }
870 /* Convert from two's complement. */
871 high = ~(uint64_t) v.s[SIDE_INTEGER128_SPLIT_HIGH];
872 low = ~(uint64_t) v.s[SIDE_INTEGER128_SPLIT_LOW];
873 tmp = low + 1;
874 if (tmp < low) {
875 high++;
876 /* Clear overflow to sign bit. */
877 high &= ~0x8000000000000000ULL;
878 }
879 v.u[SIDE_INTEGER128_SPLIT_LOW] = tmp;
880 v.u[SIDE_INTEGER128_SPLIT_HIGH] = high;
881 str[0] = '-';
882 u128_tostring_base_10(v, str + 1);
883 }
884
885 /* 2^128 - 1 */
886 #define U128_BASE_8_ARRAY_LEN sizeof("3777777777777777777777777777777777777777777")
887
888 static
889 void u128_tostring_base_8(union int_value v, char str[U128_BASE_8_ARRAY_LEN])
890 {
891 int d[43] = {}, i, j, str_i = 0;
892
893 for (i = 63; i > -1; i--) {
894 if ((v.u[SIDE_INTEGER128_SPLIT_HIGH] >> i) & 1)
895 d[0]++;
896 for (j = 0; j < 43; j++)
897 d[j] *= 2;
898 for (j = 0; j < 42; j++) {
899 d[j + 1] += d[j] / 8;
900 d[j] %= 8;
901 }
902 }
903 for (i = 63; i > -1; i--) {
904 if ((v.u[SIDE_INTEGER128_SPLIT_LOW] >> i) & 1)
905 d[0]++;
906 if (i > 0) {
907 for (j = 0; j < 43; j++)
908 d[j] *= 2;
909 }
910 for (j = 0; j < 42; j++) {
911 d[j + 1] += d[j] / 8;
912 d[j] %= 8;
913 }
914 }
915 for (i = 42; i > 0; i--)
916 if (d[i] > 0)
917 break;
918 for (; i > -1; i--) {
919 str[str_i++] = '0' + d[i];
920 }
921 str[str_i] = '\0';
922 }
923
924 static
925 void tracer_print_type_integer(const char *separator,
926 const struct side_type_integer *type_integer,
927 const union side_integer_value *value,
928 uint16_t offset_bits,
929 enum tracer_display_base default_base)
930 {
931 enum tracer_display_base base;
932 union int_value v;
933 uint16_t len_bits;
934
935 v = tracer_load_integer_value(type_integer, value, offset_bits, &len_bits);
936 tracer_print_type_header(separator, side_ptr_get(type_integer->attr), type_integer->nr_attr);
937 base = get_attr_display_base(side_ptr_get(type_integer->attr), type_integer->nr_attr, default_base);
938 switch (base) {
939 case TRACER_DISPLAY_BASE_2:
940 print_integer_binary(v.u, len_bits);
941 break;
942 case TRACER_DISPLAY_BASE_8:
943 /* Clear sign bits beyond len_bits */
944 if (len_bits < 64) {
945 v.u[SIDE_INTEGER128_SPLIT_LOW] &= (1ULL << len_bits) - 1;
946 v.u[SIDE_INTEGER128_SPLIT_HIGH] = 0;
947 } else if (len_bits < 128) {
948 v.u[SIDE_INTEGER128_SPLIT_HIGH] &= (1ULL << (len_bits - 64)) - 1;
949 }
950 if (len_bits <= 64) {
951 printf("0o%" PRIo64, v.u[SIDE_INTEGER128_SPLIT_LOW]);
952 } else {
953 char str[U128_BASE_8_ARRAY_LEN];
954
955 u128_tostring_base_8(v, str);
956 printf("0o%s", str);
957 }
958 break;
959 case TRACER_DISPLAY_BASE_10:
960 if (len_bits <= 64) {
961 if (type_integer->signedness)
962 printf("%" PRId64, v.s[SIDE_INTEGER128_SPLIT_LOW]);
963 else
964 printf("%" PRIu64, v.u[SIDE_INTEGER128_SPLIT_LOW]);
965 } else {
966 if (type_integer->signedness) {
967 char str[S128_BASE_10_ARRAY_LEN];
968 s128_tostring_base_10(v, str);
969 printf("%s", str);
970 } else {
971 char str[U128_BASE_10_ARRAY_LEN];
972 u128_tostring_base_10(v, str);
973 printf("%s", str);
974 }
975 }
976 break;
977 case TRACER_DISPLAY_BASE_16:
978 /* Clear sign bits beyond len_bits */
979 if (len_bits < 64) {
980 v.u[SIDE_INTEGER128_SPLIT_LOW] &= (1ULL << len_bits) - 1;
981 v.u[SIDE_INTEGER128_SPLIT_HIGH] = 0;
982 } else if (len_bits < 128) {
983 v.u[SIDE_INTEGER128_SPLIT_HIGH] &= (1ULL << (len_bits - 64)) - 1;
984 }
985 if (len_bits <= 64 || v.u[SIDE_INTEGER128_SPLIT_HIGH] == 0) {
986 printf("0x%" PRIx64, v.u[SIDE_INTEGER128_SPLIT_LOW]);
987 } else {
988 printf("0x%" PRIx64 "%016" PRIx64,
989 v.u[SIDE_INTEGER128_SPLIT_HIGH],
990 v.u[SIDE_INTEGER128_SPLIT_LOW]);
991 }
992 break;
993 default:
994 abort();
995 }
996 }
997
998 static
999 void tracer_print_type_float(const char *separator,
1000 const struct side_type_float *type_float,
1001 const union side_float_value *value)
1002 {
1003 bool reverse_bo;
1004
1005 tracer_print_type_header(separator, side_ptr_get(type_float->attr), type_float->nr_attr);
1006 reverse_bo = side_enum_get(type_float->byte_order) != SIDE_TYPE_FLOAT_WORD_ORDER_HOST;
1007 switch (type_float->float_size) {
1008 case 2:
1009 {
1010 #if __HAVE_FLOAT16
1011 union {
1012 _Float16 f;
1013 uint16_t u;
1014 } float16 = {
1015 .f = value->side_float_binary16,
1016 };
1017
1018 if (reverse_bo)
1019 float16.u = side_bswap_16(float16.u);
1020 printf("%g", (double) float16.f);
1021 break;
1022 #else
1023 fprintf(stderr, "ERROR: Unsupported binary16 float type\n");
1024 abort();
1025 #endif
1026 }
1027 case 4:
1028 {
1029 #if __HAVE_FLOAT32
1030 union {
1031 _Float32 f;
1032 uint32_t u;
1033 } float32 = {
1034 .f = value->side_float_binary32,
1035 };
1036
1037 if (reverse_bo)
1038 float32.u = side_bswap_32(float32.u);
1039 printf("%g", (double) float32.f);
1040 break;
1041 #else
1042 fprintf(stderr, "ERROR: Unsupported binary32 float type\n");
1043 abort();
1044 #endif
1045 }
1046 case 8:
1047 {
1048 #if __HAVE_FLOAT64
1049 union {
1050 _Float64 f;
1051 uint64_t u;
1052 } float64 = {
1053 .f = value->side_float_binary64,
1054 };
1055
1056 if (reverse_bo)
1057 float64.u = side_bswap_64(float64.u);
1058 printf("%g", (double) float64.f);
1059 break;
1060 #else
1061 fprintf(stderr, "ERROR: Unsupported binary64 float type\n");
1062 abort();
1063 #endif
1064 }
1065 case 16:
1066 {
1067 #if __HAVE_FLOAT128
1068 union {
1069 _Float128 f;
1070 char arr[16];
1071 } float128 = {
1072 .f = value->side_float_binary128,
1073 };
1074
1075 if (reverse_bo)
1076 side_bswap_128p(float128.arr);
1077 printf("%Lg", (long double) float128.f);
1078 break;
1079 #else
1080 fprintf(stderr, "ERROR: Unsupported binary128 float type\n");
1081 abort();
1082 #endif
1083 }
1084 default:
1085 fprintf(stderr, "ERROR: Unknown float size\n");
1086 abort();
1087 }
1088 }
1089
1090 static
1091 void tracer_print_type(const struct side_type *type_desc, const struct side_arg *item)
1092 {
1093 enum side_type_label type;
1094
1095 switch (side_enum_get(type_desc->type)) {
1096 case SIDE_TYPE_ENUM:
1097 switch (side_enum_get(item->type)) {
1098 case SIDE_TYPE_U8:
1099 case SIDE_TYPE_U16:
1100 case SIDE_TYPE_U32:
1101 case SIDE_TYPE_U64:
1102 case SIDE_TYPE_U128:
1103 case SIDE_TYPE_S8:
1104 case SIDE_TYPE_S16:
1105 case SIDE_TYPE_S32:
1106 case SIDE_TYPE_S64:
1107 case SIDE_TYPE_S128:
1108 break;
1109 default:
1110 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
1111 abort();
1112 break;
1113 }
1114 break;
1115
1116 case SIDE_TYPE_ENUM_BITMAP:
1117 switch (side_enum_get(item->type)) {
1118 case SIDE_TYPE_U8:
1119 case SIDE_TYPE_BYTE:
1120 case SIDE_TYPE_U16:
1121 case SIDE_TYPE_U32:
1122 case SIDE_TYPE_U64:
1123 case SIDE_TYPE_U128:
1124 case SIDE_TYPE_ARRAY:
1125 case SIDE_TYPE_VLA:
1126 break;
1127 default:
1128 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
1129 abort();
1130 break;
1131 }
1132 break;
1133
1134 case SIDE_TYPE_GATHER_ENUM:
1135 switch (side_enum_get(item->type)) {
1136 case SIDE_TYPE_GATHER_INTEGER:
1137 break;
1138 default:
1139 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
1140 abort();
1141 break;
1142 }
1143 break;
1144
1145 case SIDE_TYPE_DYNAMIC:
1146 switch (side_enum_get(item->type)) {
1147 case SIDE_TYPE_DYNAMIC_NULL:
1148 case SIDE_TYPE_DYNAMIC_BOOL:
1149 case SIDE_TYPE_DYNAMIC_INTEGER:
1150 case SIDE_TYPE_DYNAMIC_BYTE:
1151 case SIDE_TYPE_DYNAMIC_POINTER:
1152 case SIDE_TYPE_DYNAMIC_FLOAT:
1153 case SIDE_TYPE_DYNAMIC_STRING:
1154 case SIDE_TYPE_DYNAMIC_STRUCT:
1155 case SIDE_TYPE_DYNAMIC_STRUCT_VISITOR:
1156 case SIDE_TYPE_DYNAMIC_VLA:
1157 case SIDE_TYPE_DYNAMIC_VLA_VISITOR:
1158 break;
1159 default:
1160 fprintf(stderr, "ERROR: Unexpected dynamic type\n");
1161 abort();
1162 break;
1163 }
1164 break;
1165
1166 default:
1167 if (side_enum_get(type_desc->type) != side_enum_get(item->type)) {
1168 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
1169 abort();
1170 }
1171 break;
1172 }
1173
1174 if (side_enum_get(type_desc->type) == SIDE_TYPE_ENUM || side_enum_get(type_desc->type) == SIDE_TYPE_ENUM_BITMAP || side_enum_get(type_desc->type) == SIDE_TYPE_GATHER_ENUM)
1175 type = side_enum_get(type_desc->type);
1176 else
1177 type = side_enum_get(item->type);
1178
1179 printf("{ ");
1180 switch (type) {
1181 /* Stack-copy basic types */
1182 case SIDE_TYPE_NULL:
1183 tracer_print_type_header(":", side_ptr_get(type_desc->u.side_null.attr),
1184 type_desc->u.side_null.nr_attr);
1185 printf("<NULL TYPE>");
1186 break;
1187
1188 case SIDE_TYPE_BOOL:
1189 tracer_print_type_bool(":", &type_desc->u.side_bool, &item->u.side_static.bool_value, 0);
1190 break;
1191
1192 case SIDE_TYPE_U8:
1193 case SIDE_TYPE_U16:
1194 case SIDE_TYPE_U32:
1195 case SIDE_TYPE_U64:
1196 case SIDE_TYPE_U128:
1197 case SIDE_TYPE_S8:
1198 case SIDE_TYPE_S16:
1199 case SIDE_TYPE_S32:
1200 case SIDE_TYPE_S64:
1201 case SIDE_TYPE_S128:
1202 tracer_print_type_integer(":", &type_desc->u.side_integer, &item->u.side_static.integer_value, 0,
1203 TRACER_DISPLAY_BASE_10);
1204 break;
1205
1206 case SIDE_TYPE_BYTE:
1207 tracer_print_type_header(":", side_ptr_get(type_desc->u.side_byte.attr), type_desc->u.side_byte.nr_attr);
1208 printf("0x%" PRIx8, item->u.side_static.byte_value);
1209 break;
1210
1211 case SIDE_TYPE_POINTER:
1212 tracer_print_type_integer(":", &type_desc->u.side_integer, &item->u.side_static.integer_value, 0,
1213 TRACER_DISPLAY_BASE_16);
1214 break;
1215
1216 case SIDE_TYPE_FLOAT_BINARY16:
1217 case SIDE_TYPE_FLOAT_BINARY32:
1218 case SIDE_TYPE_FLOAT_BINARY64:
1219 case SIDE_TYPE_FLOAT_BINARY128:
1220 tracer_print_type_float(":", &type_desc->u.side_float, &item->u.side_static.float_value);
1221 break;
1222
1223 case SIDE_TYPE_STRING_UTF8:
1224 case SIDE_TYPE_STRING_UTF16:
1225 case SIDE_TYPE_STRING_UTF32:
1226 tracer_print_type_header(":", side_ptr_get(type_desc->u.side_string.attr), type_desc->u.side_string.nr_attr);
1227 tracer_print_string(side_ptr_get(item->u.side_static.string_value),
1228 type_desc->u.side_string.unit_size, side_enum_get(type_desc->u.side_string.byte_order), NULL);
1229 break;
1230
1231 /* Stack-copy compound types */
1232 case SIDE_TYPE_STRUCT:
1233 tracer_print_struct(type_desc, side_ptr_get(item->u.side_static.side_struct));
1234 break;
1235 case SIDE_TYPE_VARIANT:
1236 tracer_print_variant(type_desc, side_ptr_get(item->u.side_static.side_variant));
1237 break;
1238 case SIDE_TYPE_ARRAY:
1239 tracer_print_array(type_desc, side_ptr_get(item->u.side_static.side_array));
1240 break;
1241 case SIDE_TYPE_VLA:
1242 tracer_print_vla(type_desc, side_ptr_get(item->u.side_static.side_vla));
1243 break;
1244 case SIDE_TYPE_VLA_VISITOR:
1245 tracer_print_vla_visitor(type_desc, item->u.side_static.side_vla_app_visitor_ctx);
1246 break;
1247
1248 /* Stack-copy enumeration types */
1249 case SIDE_TYPE_ENUM:
1250 tracer_print_enum(type_desc, item);
1251 break;
1252 case SIDE_TYPE_ENUM_BITMAP:
1253 tracer_print_enum_bitmap(type_desc, item);
1254 break;
1255
1256 /* Gather basic types */
1257 case SIDE_TYPE_GATHER_BOOL:
1258 (void) tracer_print_gather_bool_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_bool_gather_ptr));
1259 break;
1260 case SIDE_TYPE_GATHER_INTEGER:
1261 (void) tracer_print_gather_integer_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_integer_gather_ptr),
1262 TRACER_DISPLAY_BASE_10);
1263 break;
1264 case SIDE_TYPE_GATHER_BYTE:
1265 (void) tracer_print_gather_byte_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_byte_gather_ptr));
1266 break;
1267 case SIDE_TYPE_GATHER_POINTER:
1268 (void) tracer_print_gather_integer_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_integer_gather_ptr),
1269 TRACER_DISPLAY_BASE_16);
1270 break;
1271 case SIDE_TYPE_GATHER_FLOAT:
1272 (void) tracer_print_gather_float_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_float_gather_ptr));
1273 break;
1274 case SIDE_TYPE_GATHER_STRING:
1275 (void) tracer_print_gather_string_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_string_gather_ptr));
1276 break;
1277
1278 /* Gather compound type */
1279 case SIDE_TYPE_GATHER_STRUCT:
1280 (void) tracer_print_gather_struct(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_struct_gather_ptr));
1281 break;
1282 case SIDE_TYPE_GATHER_ARRAY:
1283 (void) tracer_print_gather_array(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_array_gather_ptr));
1284 break;
1285 case SIDE_TYPE_GATHER_VLA:
1286 (void) tracer_print_gather_vla(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_vla_gather.ptr),
1287 side_ptr_get(item->u.side_static.side_vla_gather.length_ptr));
1288 break;
1289
1290 /* Gather enumeration types */
1291 case SIDE_TYPE_GATHER_ENUM:
1292 (void) tracer_print_gather_enum_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_integer_gather_ptr));
1293 break;
1294
1295 /* Dynamic basic types */
1296 case SIDE_TYPE_DYNAMIC_NULL:
1297 case SIDE_TYPE_DYNAMIC_BOOL:
1298 case SIDE_TYPE_DYNAMIC_INTEGER:
1299 case SIDE_TYPE_DYNAMIC_BYTE:
1300 case SIDE_TYPE_DYNAMIC_POINTER:
1301 case SIDE_TYPE_DYNAMIC_FLOAT:
1302 case SIDE_TYPE_DYNAMIC_STRING:
1303
1304 /* Dynamic compound types */
1305 case SIDE_TYPE_DYNAMIC_STRUCT:
1306 case SIDE_TYPE_DYNAMIC_STRUCT_VISITOR:
1307 case SIDE_TYPE_DYNAMIC_VLA:
1308 case SIDE_TYPE_DYNAMIC_VLA_VISITOR:
1309 tracer_print_dynamic(item);
1310 break;
1311 default:
1312 fprintf(stderr, "<UNKNOWN TYPE>\n");
1313 abort();
1314 }
1315 printf(" }");
1316 }
1317
1318 static
1319 void tracer_print_field(const struct side_event_field *item_desc, const struct side_arg *item)
1320 {
1321 printf("%s: ", side_ptr_get(item_desc->field_name));
1322 tracer_print_type(&item_desc->side_type, item);
1323 }
1324
1325 static
1326 void tracer_print_struct(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec)
1327 {
1328 const struct side_arg *sav = side_ptr_get(side_arg_vec->sav);
1329 const struct side_type_struct *side_struct = side_ptr_get(type_desc->u.side_struct);
1330 uint32_t i, side_sav_len = side_arg_vec->len;
1331
1332 if (side_struct->nr_fields != side_sav_len) {
1333 fprintf(stderr, "ERROR: number of fields mismatch between description and arguments of structure\n");
1334 abort();
1335 }
1336 print_attributes("attr", ":", side_ptr_get(side_struct->attr), side_struct->nr_attr);
1337 printf("%s", side_struct->nr_attr ? ", " : "");
1338 printf("fields: { ");
1339 for (i = 0; i < side_sav_len; i++) {
1340 printf("%s", i ? ", " : "");
1341 tracer_print_field(&side_ptr_get(side_struct->fields)[i], &sav[i]);
1342 }
1343 printf(" }");
1344 }
1345
1346 static
1347 void tracer_print_variant(const struct side_type *type_desc, const struct side_arg_variant *side_arg_variant)
1348 {
1349 const struct side_type_variant *side_type_variant = side_ptr_get(type_desc->u.side_variant);
1350 const struct side_type *selector_type = &side_type_variant->selector;
1351 union int_value v;
1352 uint32_t i;
1353
1354 if (side_enum_get(selector_type->type) != side_enum_get(side_arg_variant->selector.type)) {
1355 fprintf(stderr, "ERROR: Unexpected variant selector type\n");
1356 abort();
1357 }
1358 switch (side_enum_get(selector_type->type)) {
1359 case SIDE_TYPE_U8:
1360 case SIDE_TYPE_U16:
1361 case SIDE_TYPE_U32:
1362 case SIDE_TYPE_U64:
1363 case SIDE_TYPE_U128:
1364 case SIDE_TYPE_S8:
1365 case SIDE_TYPE_S16:
1366 case SIDE_TYPE_S32:
1367 case SIDE_TYPE_S64:
1368 case SIDE_TYPE_S128:
1369 break;
1370 default:
1371 fprintf(stderr, "ERROR: Expecting integer variant selector type\n");
1372 abort();
1373 }
1374 v = tracer_load_integer_value(&selector_type->u.side_integer,
1375 &side_arg_variant->selector.u.side_static.integer_value, 0, NULL);
1376 side_check_value_u64(v);
1377 for (i = 0; i < side_type_variant->nr_options; i++) {
1378 const struct side_variant_option *option = &side_ptr_get(side_type_variant->options)[i];
1379
1380 if (v.s[SIDE_INTEGER128_SPLIT_LOW] >= option->range_begin && v.s[SIDE_INTEGER128_SPLIT_LOW] <= option->range_end) {
1381 tracer_print_type(&option->side_type, &side_arg_variant->option);
1382 return;
1383 }
1384 }
1385 fprintf(stderr, "ERROR: Variant selector value unknown %" PRId64 "\n", v.s[SIDE_INTEGER128_SPLIT_LOW]);
1386 abort();
1387 }
1388
1389 static
1390 void tracer_print_array(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec)
1391 {
1392 const struct side_arg *sav = side_ptr_get(side_arg_vec->sav);
1393 uint32_t i, side_sav_len = side_arg_vec->len;
1394
1395 if (type_desc->u.side_array.length != side_sav_len) {
1396 fprintf(stderr, "ERROR: length mismatch between description and arguments of array\n");
1397 abort();
1398 }
1399 print_attributes("attr", ":", side_ptr_get(type_desc->u.side_array.attr), type_desc->u.side_array.nr_attr);
1400 printf("%s", type_desc->u.side_array.nr_attr ? ", " : "");
1401 printf("elements: ");
1402 printf("[ ");
1403 for (i = 0; i < side_sav_len; i++) {
1404 printf("%s", i ? ", " : "");
1405 tracer_print_type(side_ptr_get(type_desc->u.side_array.elem_type), &sav[i]);
1406 }
1407 printf(" ]");
1408 }
1409
1410 static
1411 void tracer_print_vla(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec)
1412 {
1413 const struct side_arg *sav = side_ptr_get(side_arg_vec->sav);
1414 uint32_t i, side_sav_len = side_arg_vec->len;
1415
1416 print_attributes("attr", ":", side_ptr_get(type_desc->u.side_vla.attr), type_desc->u.side_vla.nr_attr);
1417 printf("%s", type_desc->u.side_vla.nr_attr ? ", " : "");
1418 printf("elements: ");
1419 printf("[ ");
1420 for (i = 0; i < side_sav_len; i++) {
1421 printf("%s", i ? ", " : "");
1422 tracer_print_type(side_ptr_get(type_desc->u.side_vla.elem_type), &sav[i]);
1423 }
1424 printf(" ]");
1425 }
1426
1427 static
1428 const char *tracer_gather_access(enum side_type_gather_access_mode access_mode, const char *ptr)
1429 {
1430 switch (access_mode) {
1431 case SIDE_TYPE_GATHER_ACCESS_DIRECT:
1432 return ptr;
1433 case SIDE_TYPE_GATHER_ACCESS_POINTER:
1434 /* Dereference pointer */
1435 memcpy(&ptr, ptr, sizeof(const char *));
1436 return ptr;
1437 default:
1438 abort();
1439 }
1440 }
1441
1442 static
1443 uint32_t tracer_gather_size(enum side_type_gather_access_mode access_mode, uint32_t len)
1444 {
1445 switch (access_mode) {
1446 case SIDE_TYPE_GATHER_ACCESS_DIRECT:
1447 return len;
1448 case SIDE_TYPE_GATHER_ACCESS_POINTER:
1449 return sizeof(void *);
1450 default:
1451 abort();
1452 }
1453 }
1454
1455 static
1456 union int_value tracer_load_gather_integer_value(const struct side_type_gather_integer *side_integer,
1457 const void *_ptr)
1458 {
1459 enum side_type_gather_access_mode access_mode =
1460 (enum side_type_gather_access_mode) side_integer->access_mode;
1461 uint32_t integer_size_bytes = side_integer->type.integer_size;
1462 const char *ptr = (const char *) _ptr;
1463 union side_integer_value value;
1464
1465 ptr = tracer_gather_access(access_mode, ptr + side_integer->offset);
1466 memcpy(&value, ptr, integer_size_bytes);
1467 return tracer_load_integer_value(&side_integer->type, &value,
1468 side_integer->offset_bits, NULL);
1469 }
1470
1471 static
1472 uint32_t tracer_print_gather_bool_type(const struct side_type_gather *type_gather, const void *_ptr)
1473 {
1474 enum side_type_gather_access_mode access_mode =
1475 (enum side_type_gather_access_mode) type_gather->u.side_bool.access_mode;
1476 uint32_t bool_size_bytes = type_gather->u.side_bool.type.bool_size;
1477 const char *ptr = (const char *) _ptr;
1478 union side_bool_value value;
1479
1480 switch (bool_size_bytes) {
1481 case 1:
1482 case 2:
1483 case 4:
1484 case 8:
1485 break;
1486 default:
1487 abort();
1488 }
1489 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_bool.offset);
1490 memcpy(&value, ptr, bool_size_bytes);
1491 tracer_print_type_bool(":", &type_gather->u.side_bool.type, &value,
1492 type_gather->u.side_bool.offset_bits);
1493 return tracer_gather_size(access_mode, bool_size_bytes);
1494 }
1495
1496 static
1497 uint32_t tracer_print_gather_byte_type(const struct side_type_gather *type_gather, const void *_ptr)
1498 {
1499 enum side_type_gather_access_mode access_mode =
1500 (enum side_type_gather_access_mode) type_gather->u.side_byte.access_mode;
1501 const char *ptr = (const char *) _ptr;
1502 uint8_t value;
1503
1504 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_byte.offset);
1505 memcpy(&value, ptr, 1);
1506 tracer_print_type_header(":", side_ptr_get(type_gather->u.side_byte.type.attr),
1507 type_gather->u.side_byte.type.nr_attr);
1508 printf("0x%" PRIx8, value);
1509 return tracer_gather_size(access_mode, 1);
1510 }
1511
1512 static
1513 uint32_t tracer_print_gather_integer_type(const struct side_type_gather *type_gather, const void *_ptr,
1514 enum tracer_display_base default_base)
1515 {
1516 enum side_type_gather_access_mode access_mode =
1517 (enum side_type_gather_access_mode) type_gather->u.side_integer.access_mode;
1518 uint32_t integer_size_bytes = type_gather->u.side_integer.type.integer_size;
1519 const char *ptr = (const char *) _ptr;
1520 union side_integer_value value;
1521
1522 switch (integer_size_bytes) {
1523 case 1:
1524 case 2:
1525 case 4:
1526 case 8:
1527 case 16:
1528 break;
1529 default:
1530 abort();
1531 }
1532 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_integer.offset);
1533 memcpy(&value, ptr, integer_size_bytes);
1534 tracer_print_type_integer(":", &type_gather->u.side_integer.type, &value,
1535 type_gather->u.side_integer.offset_bits, default_base);
1536 return tracer_gather_size(access_mode, integer_size_bytes);
1537 }
1538
1539 static
1540 uint32_t tracer_print_gather_float_type(const struct side_type_gather *type_gather, const void *_ptr)
1541 {
1542 enum side_type_gather_access_mode access_mode =
1543 (enum side_type_gather_access_mode) type_gather->u.side_float.access_mode;
1544 uint32_t float_size_bytes = type_gather->u.side_float.type.float_size;
1545 const char *ptr = (const char *) _ptr;
1546 union side_float_value value;
1547
1548 switch (float_size_bytes) {
1549 case 2:
1550 case 4:
1551 case 8:
1552 case 16:
1553 break;
1554 default:
1555 abort();
1556 }
1557 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_float.offset);
1558 memcpy(&value, ptr, float_size_bytes);
1559 tracer_print_type_float(":", &type_gather->u.side_float.type, &value);
1560 return tracer_gather_size(access_mode, float_size_bytes);
1561 }
1562
1563 static
1564 uint32_t tracer_print_gather_string_type(const struct side_type_gather *type_gather, const void *_ptr)
1565 {
1566 enum side_type_gather_access_mode access_mode =
1567 (enum side_type_gather_access_mode) type_gather->u.side_string.access_mode;
1568 const char *ptr = (const char *) _ptr;
1569 size_t string_len;
1570
1571 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_string.offset);
1572 tracer_print_type_header(":", side_ptr_get(type_gather->u.side_string.type.attr),
1573 type_gather->u.side_string.type.nr_attr);
1574 if (ptr) {
1575 tracer_print_string(ptr, type_gather->u.side_string.type.unit_size,
1576 side_enum_get(type_gather->u.side_string.type.byte_order), &string_len);
1577 } else {
1578 printf("<NULL>");
1579 string_len = type_gather->u.side_string.type.unit_size;
1580 }
1581 return tracer_gather_size(access_mode, string_len);
1582 }
1583
1584 static
1585 uint32_t tracer_print_gather_type(const struct side_type *type_desc, const void *ptr)
1586 {
1587 uint32_t len;
1588
1589 printf("{ ");
1590 switch (side_enum_get(type_desc->type)) {
1591 /* Gather basic types */
1592 case SIDE_TYPE_GATHER_BOOL:
1593 len = tracer_print_gather_bool_type(&type_desc->u.side_gather, ptr);
1594 break;
1595 case SIDE_TYPE_GATHER_INTEGER:
1596 len = tracer_print_gather_integer_type(&type_desc->u.side_gather, ptr,
1597 TRACER_DISPLAY_BASE_10);
1598 break;
1599 case SIDE_TYPE_GATHER_BYTE:
1600 len = tracer_print_gather_byte_type(&type_desc->u.side_gather, ptr);
1601 break;
1602 case SIDE_TYPE_GATHER_POINTER:
1603 len = tracer_print_gather_integer_type(&type_desc->u.side_gather, ptr,
1604 TRACER_DISPLAY_BASE_16);
1605 break;
1606 case SIDE_TYPE_GATHER_FLOAT:
1607 len = tracer_print_gather_float_type(&type_desc->u.side_gather, ptr);
1608 break;
1609 case SIDE_TYPE_GATHER_STRING:
1610 len = tracer_print_gather_string_type(&type_desc->u.side_gather, ptr);
1611 break;
1612
1613 /* Gather enum types */
1614 case SIDE_TYPE_GATHER_ENUM:
1615 len = tracer_print_gather_enum_type(&type_desc->u.side_gather, ptr);
1616 break;
1617
1618 /* Gather compound types */
1619 case SIDE_TYPE_GATHER_STRUCT:
1620 len = tracer_print_gather_struct(&type_desc->u.side_gather, ptr);
1621 break;
1622 case SIDE_TYPE_GATHER_ARRAY:
1623 len = tracer_print_gather_array(&type_desc->u.side_gather, ptr);
1624 break;
1625 case SIDE_TYPE_GATHER_VLA:
1626 len = tracer_print_gather_vla(&type_desc->u.side_gather, ptr, ptr);
1627 break;
1628 default:
1629 fprintf(stderr, "<UNKNOWN GATHER TYPE>");
1630 abort();
1631 }
1632 printf(" }");
1633 return len;
1634 }
1635
1636 static
1637 uint32_t tracer_print_gather_enum_type(const struct side_type_gather *type_gather, const void *_ptr)
1638 {
1639 const struct side_enum_mappings *mappings = side_ptr_get(type_gather->u.side_enum.mappings);
1640 const struct side_type *enum_elem_type = side_ptr_get(type_gather->u.side_enum.elem_type);
1641 const struct side_type_gather_integer *side_integer = &enum_elem_type->u.side_gather.u.side_integer;
1642 enum side_type_gather_access_mode access_mode =
1643 (enum side_type_gather_access_mode) side_integer->access_mode;
1644 uint32_t integer_size_bytes = side_integer->type.integer_size;
1645 const char *ptr = (const char *) _ptr;
1646 union side_integer_value value;
1647 union int_value v;
1648
1649 switch (integer_size_bytes) {
1650 case 1:
1651 case 2:
1652 case 4:
1653 case 8:
1654 case 16:
1655 break;
1656 default:
1657 abort();
1658 }
1659 ptr = tracer_gather_access(access_mode, ptr + side_integer->offset);
1660 memcpy(&value, ptr, integer_size_bytes);
1661 v = tracer_load_gather_integer_value(side_integer, &value);
1662 print_attributes("attr", ":", side_ptr_get(mappings->attr), mappings->nr_attr);
1663 printf("%s", mappings->nr_attr ? ", " : "");
1664 tracer_print_gather_type(enum_elem_type, ptr);
1665 print_enum_labels(mappings, v);
1666 return tracer_gather_size(access_mode, integer_size_bytes);
1667 }
1668
1669 static
1670 void tracer_print_gather_field(const struct side_event_field *field, const void *ptr)
1671 {
1672 printf("%s: ", side_ptr_get(field->field_name));
1673 (void) tracer_print_gather_type(&field->side_type, ptr);
1674 }
1675
1676 static
1677 uint32_t tracer_print_gather_struct(const struct side_type_gather *type_gather, const void *_ptr)
1678 {
1679 enum side_type_gather_access_mode access_mode =
1680 (enum side_type_gather_access_mode) type_gather->u.side_struct.access_mode;
1681 const struct side_type_struct *side_struct = side_ptr_get(type_gather->u.side_struct.type);
1682 const char *ptr = (const char *) _ptr;
1683 uint32_t i;
1684
1685 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_struct.offset);
1686 print_attributes("attr", ":", side_ptr_get(side_struct->attr), side_struct->nr_attr);
1687 printf("%s", side_struct->nr_attr ? ", " : "");
1688 printf("fields: { ");
1689 for (i = 0; i < side_struct->nr_fields; i++) {
1690 printf("%s", i ? ", " : "");
1691 tracer_print_gather_field(&side_ptr_get(side_struct->fields)[i], ptr);
1692 }
1693 printf(" }");
1694 return tracer_gather_size(access_mode, type_gather->u.side_struct.size);
1695 }
1696
1697 static
1698 uint32_t tracer_print_gather_array(const struct side_type_gather *type_gather, const void *_ptr)
1699 {
1700 enum side_type_gather_access_mode access_mode =
1701 (enum side_type_gather_access_mode) type_gather->u.side_array.access_mode;
1702 const char *ptr = (const char *) _ptr, *orig_ptr;
1703 uint32_t i;
1704
1705 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_array.offset);
1706 orig_ptr = ptr;
1707 print_attributes("attr", ":", side_ptr_get(type_gather->u.side_array.type.attr), type_gather->u.side_array.type.nr_attr);
1708 printf("%s", type_gather->u.side_array.type.nr_attr ? ", " : "");
1709 printf("elements: ");
1710 printf("[ ");
1711 for (i = 0; i < type_gather->u.side_array.type.length; i++) {
1712 const struct side_type *elem_type = side_ptr_get(type_gather->u.side_array.type.elem_type);
1713
1714 switch (side_enum_get(elem_type->type)) {
1715 case SIDE_TYPE_GATHER_VLA:
1716 fprintf(stderr, "<gather VLA only supported within gather structures>\n");
1717 abort();
1718 default:
1719 break;
1720 }
1721 printf("%s", i ? ", " : "");
1722 ptr += tracer_print_gather_type(elem_type, ptr);
1723 }
1724 printf(" ]");
1725 return tracer_gather_size(access_mode, ptr - orig_ptr);
1726 }
1727
1728 static
1729 uint32_t tracer_print_gather_vla(const struct side_type_gather *type_gather, const void *_ptr,
1730 const void *_length_ptr)
1731 {
1732 enum side_type_gather_access_mode access_mode =
1733 (enum side_type_gather_access_mode) type_gather->u.side_vla.access_mode;
1734 const struct side_type *length_type = side_ptr_get(type_gather->u.side_vla.length_type);
1735 const char *ptr = (const char *) _ptr, *orig_ptr;
1736 const char *length_ptr = (const char *) _length_ptr;
1737 union int_value v = {};
1738 uint32_t i, length;
1739
1740 /* Access length */
1741 switch (side_enum_get(length_type->type)) {
1742 case SIDE_TYPE_GATHER_INTEGER:
1743 break;
1744 default:
1745 fprintf(stderr, "<gather VLA expects integer gather length type>\n");
1746 abort();
1747 }
1748 v = tracer_load_gather_integer_value(&length_type->u.side_gather.u.side_integer,
1749 length_ptr);
1750 if (v.u[SIDE_INTEGER128_SPLIT_HIGH] || v.u[SIDE_INTEGER128_SPLIT_LOW] > UINT32_MAX) {
1751 fprintf(stderr, "Unexpected vla length value\n");
1752 abort();
1753 }
1754 length = (uint32_t) v.u[SIDE_INTEGER128_SPLIT_LOW];
1755 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_vla.offset);
1756 orig_ptr = ptr;
1757 print_attributes("attr", ":", side_ptr_get(type_gather->u.side_vla.type.attr), type_gather->u.side_vla.type.nr_attr);
1758 printf("%s", type_gather->u.side_vla.type.nr_attr ? ", " : "");
1759 printf("elements: ");
1760 printf("[ ");
1761 for (i = 0; i < length; i++) {
1762 const struct side_type *elem_type = side_ptr_get(type_gather->u.side_vla.type.elem_type);
1763
1764 switch (side_enum_get(elem_type->type)) {
1765 case SIDE_TYPE_GATHER_VLA:
1766 fprintf(stderr, "<gather VLA only supported within gather structures>\n");
1767 abort();
1768 default:
1769 break;
1770 }
1771 printf("%s", i ? ", " : "");
1772 ptr += tracer_print_gather_type(elem_type, ptr);
1773 }
1774 printf(" ]");
1775 return tracer_gather_size(access_mode, ptr - orig_ptr);
1776 }
1777
1778 struct tracer_visitor_priv {
1779 const struct side_type *elem_type;
1780 int i;
1781 };
1782
1783 static
1784 enum side_visitor_status tracer_write_elem_cb(const struct side_tracer_visitor_ctx *tracer_ctx,
1785 const struct side_arg *elem)
1786 {
1787 struct tracer_visitor_priv *tracer_priv = (struct tracer_visitor_priv *) tracer_ctx->priv;
1788
1789 printf("%s", tracer_priv->i++ ? ", " : "");
1790 tracer_print_type(tracer_priv->elem_type, elem);
1791 return SIDE_VISITOR_STATUS_OK;
1792 }
1793
1794 static
1795 void tracer_print_vla_visitor(const struct side_type *type_desc, void *app_ctx)
1796 {
1797 enum side_visitor_status status;
1798 struct tracer_visitor_priv tracer_priv = {
1799 .elem_type = side_ptr_get(type_desc->u.side_vla_visitor.elem_type),
1800 .i = 0,
1801 };
1802 const struct side_tracer_visitor_ctx tracer_ctx = {
1803 .write_elem = tracer_write_elem_cb,
1804 .priv = &tracer_priv,
1805 };
1806 side_visitor_func func;
1807
1808 print_attributes("attr", ":", side_ptr_get(type_desc->u.side_vla_visitor.attr), type_desc->u.side_vla_visitor.nr_attr);
1809 printf("%s", type_desc->u.side_vla_visitor.nr_attr ? ", " : "");
1810 printf("elements: ");
1811 printf("[ ");
1812 func = side_ptr_get(type_desc->u.side_vla_visitor.visitor);
1813 status = func(&tracer_ctx, app_ctx);
1814 switch (status) {
1815 case SIDE_VISITOR_STATUS_OK:
1816 break;
1817 case SIDE_VISITOR_STATUS_ERROR:
1818 fprintf(stderr, "ERROR: Visitor error\n");
1819 abort();
1820 }
1821 printf(" ]");
1822 }
1823
1824 static
1825 void tracer_print_dynamic_struct(const struct side_arg_dynamic_struct *dynamic_struct)
1826 {
1827 const struct side_arg_dynamic_field *fields = side_ptr_get(dynamic_struct->fields);
1828 uint32_t i, len = dynamic_struct->len;
1829
1830 print_attributes("attr", "::", side_ptr_get(dynamic_struct->attr), dynamic_struct->nr_attr);
1831 printf("%s", dynamic_struct->nr_attr ? ", " : "");
1832 printf("fields:: ");
1833 printf("[ ");
1834 for (i = 0; i < len; i++) {
1835 printf("%s", i ? ", " : "");
1836 printf("%s:: ", side_ptr_get(fields[i].field_name));
1837 tracer_print_dynamic(&fields[i].elem);
1838 }
1839 printf(" ]");
1840 }
1841
1842 struct tracer_dynamic_struct_visitor_priv {
1843 int i;
1844 };
1845
1846 static
1847 enum side_visitor_status tracer_dynamic_struct_write_elem_cb(
1848 const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
1849 const struct side_arg_dynamic_field *dynamic_field)
1850 {
1851 struct tracer_dynamic_struct_visitor_priv *tracer_priv =
1852 (struct tracer_dynamic_struct_visitor_priv *) tracer_ctx->priv;
1853
1854 printf("%s", tracer_priv->i++ ? ", " : "");
1855 printf("%s:: ", side_ptr_get(dynamic_field->field_name));
1856 tracer_print_dynamic(&dynamic_field->elem);
1857 return SIDE_VISITOR_STATUS_OK;
1858 }
1859
1860 static
1861 void tracer_print_dynamic_struct_visitor(const struct side_arg *item)
1862 {
1863 enum side_visitor_status status;
1864 struct tracer_dynamic_struct_visitor_priv tracer_priv = {
1865 .i = 0,
1866 };
1867 const struct side_tracer_dynamic_struct_visitor_ctx tracer_ctx = {
1868 .write_field = tracer_dynamic_struct_write_elem_cb,
1869 .priv = &tracer_priv,
1870 };
1871 void *app_ctx = side_ptr_get(item->u.side_dynamic.side_dynamic_struct_visitor.app_ctx);
1872
1873 print_attributes("attr", "::", side_ptr_get(item->u.side_dynamic.side_dynamic_struct_visitor.attr), item->u.side_dynamic.side_dynamic_struct_visitor.nr_attr);
1874 printf("%s", item->u.side_dynamic.side_dynamic_struct_visitor.nr_attr ? ", " : "");
1875 printf("fields:: ");
1876 printf("[ ");
1877 status = side_ptr_get(item->u.side_dynamic.side_dynamic_struct_visitor.visitor)(&tracer_ctx, app_ctx);
1878 switch (status) {
1879 case SIDE_VISITOR_STATUS_OK:
1880 break;
1881 case SIDE_VISITOR_STATUS_ERROR:
1882 fprintf(stderr, "ERROR: Visitor error\n");
1883 abort();
1884 }
1885 printf(" ]");
1886 }
1887
1888 static
1889 void tracer_print_dynamic_vla(const struct side_arg_dynamic_vla *vla)
1890 {
1891 const struct side_arg *sav = side_ptr_get(vla->sav);
1892 uint32_t i, side_sav_len = vla->len;
1893
1894 print_attributes("attr", "::", side_ptr_get(vla->attr), vla->nr_attr);
1895 printf("%s", vla->nr_attr ? ", " : "");
1896 printf("elements:: ");
1897 printf("[ ");
1898 for (i = 0; i < side_sav_len; i++) {
1899 printf("%s", i ? ", " : "");
1900 tracer_print_dynamic(&sav[i]);
1901 }
1902 printf(" ]");
1903 }
1904
1905 struct tracer_dynamic_vla_visitor_priv {
1906 int i;
1907 };
1908
1909 static
1910 enum side_visitor_status tracer_dynamic_vla_write_elem_cb(
1911 const struct side_tracer_visitor_ctx *tracer_ctx,
1912 const struct side_arg *elem)
1913 {
1914 struct tracer_dynamic_vla_visitor_priv *tracer_priv =
1915 (struct tracer_dynamic_vla_visitor_priv *) tracer_ctx->priv;
1916
1917 printf("%s", tracer_priv->i++ ? ", " : "");
1918 tracer_print_dynamic(elem);
1919 return SIDE_VISITOR_STATUS_OK;
1920 }
1921
1922 static
1923 void tracer_print_dynamic_vla_visitor(const struct side_arg *item)
1924 {
1925 enum side_visitor_status status;
1926 struct tracer_dynamic_vla_visitor_priv tracer_priv = {
1927 .i = 0,
1928 };
1929 const struct side_tracer_visitor_ctx tracer_ctx = {
1930 .write_elem = tracer_dynamic_vla_write_elem_cb,
1931 .priv = &tracer_priv,
1932 };
1933 void *app_ctx = side_ptr_get(item->u.side_dynamic.side_dynamic_vla_visitor.app_ctx);
1934
1935 print_attributes("attr", "::", side_ptr_get(item->u.side_dynamic.side_dynamic_vla_visitor.attr), item->u.side_dynamic.side_dynamic_vla_visitor.nr_attr);
1936 printf("%s", item->u.side_dynamic.side_dynamic_vla_visitor.nr_attr ? ", " : "");
1937 printf("elements:: ");
1938 printf("[ ");
1939 status = side_ptr_get(item->u.side_dynamic.side_dynamic_vla_visitor.visitor)(&tracer_ctx, app_ctx);
1940 switch (status) {
1941 case SIDE_VISITOR_STATUS_OK:
1942 break;
1943 case SIDE_VISITOR_STATUS_ERROR:
1944 fprintf(stderr, "ERROR: Visitor error\n");
1945 abort();
1946 }
1947 printf(" ]");
1948 }
1949
1950 static
1951 void tracer_print_dynamic(const struct side_arg *item)
1952 {
1953 printf("{ ");
1954 switch (side_enum_get(item->type)) {
1955 /* Dynamic basic types */
1956 case SIDE_TYPE_DYNAMIC_NULL:
1957 tracer_print_type_header("::", side_ptr_get(item->u.side_dynamic.side_null.attr),
1958 item->u.side_dynamic.side_null.nr_attr);
1959 printf("<NULL TYPE>");
1960 break;
1961 case SIDE_TYPE_DYNAMIC_BOOL:
1962 tracer_print_type_bool("::", &item->u.side_dynamic.side_bool.type, &item->u.side_dynamic.side_bool.value, 0);
1963 break;
1964 case SIDE_TYPE_DYNAMIC_INTEGER:
1965 tracer_print_type_integer("::", &item->u.side_dynamic.side_integer.type, &item->u.side_dynamic.side_integer.value, 0,
1966 TRACER_DISPLAY_BASE_10);
1967 break;
1968 case SIDE_TYPE_DYNAMIC_BYTE:
1969 tracer_print_type_header("::", side_ptr_get(item->u.side_dynamic.side_byte.type.attr), item->u.side_dynamic.side_byte.type.nr_attr);
1970 printf("0x%" PRIx8, item->u.side_dynamic.side_byte.value);
1971 break;
1972 case SIDE_TYPE_DYNAMIC_POINTER:
1973 tracer_print_type_integer("::", &item->u.side_dynamic.side_integer.type, &item->u.side_dynamic.side_integer.value, 0,
1974 TRACER_DISPLAY_BASE_16);
1975 break;
1976 case SIDE_TYPE_DYNAMIC_FLOAT:
1977 tracer_print_type_float("::", &item->u.side_dynamic.side_float.type,
1978 &item->u.side_dynamic.side_float.value);
1979 break;
1980 case SIDE_TYPE_DYNAMIC_STRING:
1981 tracer_print_type_header("::", side_ptr_get(item->u.side_dynamic.side_string.type.attr), item->u.side_dynamic.side_string.type.nr_attr);
1982 tracer_print_string((const char *)(uintptr_t) item->u.side_dynamic.side_string.value,
1983 item->u.side_dynamic.side_string.type.unit_size,
1984 side_enum_get(item->u.side_dynamic.side_string.type.byte_order), NULL);
1985 break;
1986
1987 /* Dynamic compound types */
1988 case SIDE_TYPE_DYNAMIC_STRUCT:
1989 tracer_print_dynamic_struct(side_ptr_get(item->u.side_dynamic.side_dynamic_struct));
1990 break;
1991 case SIDE_TYPE_DYNAMIC_STRUCT_VISITOR:
1992 tracer_print_dynamic_struct_visitor(item);
1993 break;
1994 case SIDE_TYPE_DYNAMIC_VLA:
1995 tracer_print_dynamic_vla(side_ptr_get(item->u.side_dynamic.side_dynamic_vla));
1996 break;
1997 case SIDE_TYPE_DYNAMIC_VLA_VISITOR:
1998 tracer_print_dynamic_vla_visitor(item);
1999 break;
2000 default:
2001 fprintf(stderr, "<UNKNOWN TYPE>\n");
2002 abort();
2003 }
2004 printf(" }");
2005 }
2006
2007 static
2008 void tracer_print_static_fields(const struct side_event_description *desc,
2009 const struct side_arg_vec *side_arg_vec,
2010 uint32_t *nr_items)
2011 {
2012 const struct side_arg *sav = side_ptr_get(side_arg_vec->sav);
2013 uint32_t i, side_sav_len = side_arg_vec->len;
2014
2015 printf("provider: %s, event: %s", side_ptr_get(desc->provider_name), side_ptr_get(desc->event_name));
2016 if (desc->nr_fields != side_sav_len) {
2017 fprintf(stderr, "ERROR: number of fields mismatch between description and arguments\n");
2018 abort();
2019 }
2020 print_attributes(", attr", ":", side_ptr_get(desc->attr), desc->nr_attr);
2021 printf("%s", side_sav_len ? ", fields: [ " : "");
2022 for (i = 0; i < side_sav_len; i++) {
2023 printf("%s", i ? ", " : "");
2024 tracer_print_field(&side_ptr_get(desc->fields)[i], &sav[i]);
2025 }
2026 if (nr_items)
2027 *nr_items = i;
2028 if (side_sav_len)
2029 printf(" ]");
2030 }
2031
2032 static
2033 void tracer_call(const struct side_event_description *desc,
2034 const struct side_arg_vec *side_arg_vec,
2035 void *priv __attribute__((unused)))
2036 {
2037 uint32_t nr_fields = 0;
2038
2039 tracer_print_static_fields(desc, side_arg_vec, &nr_fields);
2040 printf("\n");
2041 }
2042
2043 static
2044 void tracer_call_variadic(const struct side_event_description *desc,
2045 const struct side_arg_vec *side_arg_vec,
2046 const struct side_arg_dynamic_struct *var_struct,
2047 void *priv __attribute__((unused)))
2048 {
2049 uint32_t nr_fields = 0, i, var_struct_len = var_struct->len;
2050
2051 tracer_print_static_fields(desc, side_arg_vec, &nr_fields);
2052
2053 if (side_unlikely(!(desc->flags & SIDE_EVENT_FLAG_VARIADIC))) {
2054 fprintf(stderr, "ERROR: unexpected non-variadic event description\n");
2055 abort();
2056 }
2057 print_attributes(", attr ", "::", side_ptr_get(var_struct->attr), var_struct->nr_attr);
2058 printf("%s", var_struct_len ? ", fields:: [ " : "");
2059 for (i = 0; i < var_struct_len; i++, nr_fields++) {
2060 printf("%s", i ? ", " : "");
2061 printf("%s:: ", side_ptr_get(side_ptr_get(var_struct->fields)[i].field_name));
2062 tracer_print_dynamic(&side_ptr_get(var_struct->fields)[i].elem);
2063 }
2064 if (i)
2065 printf(" ]");
2066 printf("\n");
2067 }
2068
2069 static
2070 void tracer_event_notification(enum side_tracer_notification notif,
2071 struct side_event_description **events, uint32_t nr_events,
2072 void *priv __attribute__((unused)))
2073 {
2074 uint32_t i;
2075 int ret;
2076
2077 printf("----------------------------------------------------------\n");
2078 printf("Tracer notified of events %s\n",
2079 notif == SIDE_TRACER_NOTIFICATION_INSERT_EVENTS ? "inserted" : "removed");
2080 for (i = 0; i < nr_events; i++) {
2081 struct side_event_description *event = events[i];
2082
2083 /* Skip NULL pointers */
2084 if (!event)
2085 continue;
2086 if (event->version != SIDE_EVENT_DESCRIPTION_ABI_VERSION) {
2087 printf("Error: event description ABI version (%u) does not match the version supported by the tracer (%u)\n",
2088 event->version, SIDE_EVENT_DESCRIPTION_ABI_VERSION);
2089 return;
2090 }
2091 printf("provider: %s, event: %s\n",
2092 side_ptr_get(event->provider_name), side_ptr_get(event->event_name));
2093 if (event->struct_size != side_offsetofend(struct side_event_description, side_event_description_orig_abi_last)) {
2094 printf("Warning: Event %s.%s description contains fields unknown to the tracer\n",
2095 side_ptr_get(event->provider_name), side_ptr_get(event->event_name));
2096 }
2097 if (notif == SIDE_TRACER_NOTIFICATION_INSERT_EVENTS) {
2098 if (event->nr_side_type_label > _NR_SIDE_TYPE_LABEL) {
2099 printf("Warning: event %s:%s may contain unknown field types (%u unknown types)\n",
2100 side_ptr_get(event->provider_name), side_ptr_get(event->event_name),
2101 event->nr_side_type_label - _NR_SIDE_TYPE_LABEL);
2102 }
2103 if (event->nr_side_attr_type > _NR_SIDE_ATTR_TYPE) {
2104 printf("Warning: event %s:%s may contain unknown attribute types (%u unknown types)\n",
2105 side_ptr_get(event->provider_name), side_ptr_get(event->event_name),
2106 event->nr_side_attr_type - _NR_SIDE_ATTR_TYPE);
2107 }
2108 if (event->flags & SIDE_EVENT_FLAG_VARIADIC) {
2109 ret = side_tracer_callback_variadic_register(event, tracer_call_variadic, NULL);
2110 if (ret)
2111 abort();
2112 } else {
2113 ret = side_tracer_callback_register(event, tracer_call, NULL);
2114 if (ret)
2115 abort();
2116 }
2117 } else {
2118 if (event->flags & SIDE_EVENT_FLAG_VARIADIC) {
2119 ret = side_tracer_callback_variadic_unregister(event, tracer_call_variadic, NULL);
2120 if (ret)
2121 abort();
2122 } else {
2123 ret = side_tracer_callback_unregister(event, tracer_call, NULL);
2124 if (ret)
2125 abort();
2126 }
2127 }
2128 }
2129 printf("----------------------------------------------------------\n");
2130 }
2131
2132 static __attribute__((constructor))
2133 void tracer_init(void);
2134 static
2135 void tracer_init(void)
2136 {
2137 tracer_handle = side_tracer_event_notification_register(tracer_event_notification, NULL);
2138 if (!tracer_handle)
2139 abort();
2140 }
2141
2142 static __attribute__((destructor))
2143 void tracer_exit(void);
2144 static
2145 void tracer_exit(void)
2146 {
2147 side_tracer_event_notification_unregister(tracer_handle);
2148 }
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