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pretty-print tracer: cleanup dynamic {} and remove caller addr
[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 /* TODO: optionally print caller address. */
17 static bool print_caller = false;
18
19 enum tracer_display_base {
20 TRACER_DISPLAY_BASE_2,
21 TRACER_DISPLAY_BASE_8,
22 TRACER_DISPLAY_BASE_10,
23 TRACER_DISPLAY_BASE_16,
24 };
25
26 union int_value {
27 uint64_t u[NR_SIDE_INTEGER128_SPLIT];
28 int64_t s[NR_SIDE_INTEGER128_SPLIT];
29 };
30
31 static struct side_tracer_handle *tracer_handle;
32
33 static uint64_t tracer_key;
34
35 static
36 void tracer_print_struct(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
37 static
38 void tracer_print_variant(const struct side_type *type_desc, const struct side_arg_variant *side_arg_variant);
39 static
40 void tracer_print_array(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
41 static
42 void tracer_print_vla(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
43 static
44 void tracer_print_vla_visitor(const struct side_type *type_desc, struct side_arg_vla_visitor *vla_visitor);
45 static
46 void tracer_print_dynamic(const struct side_arg *dynamic_item, bool print_brackets);
47 static
48 uint32_t tracer_print_gather_bool_type(const struct side_type_gather *type_gather, const void *_ptr);
49 static
50 uint32_t tracer_print_gather_byte_type(const struct side_type_gather *type_gather, const void *_ptr);
51 static
52 uint32_t tracer_print_gather_integer_type(const struct side_type_gather *type_gather, const void *_ptr,
53 enum tracer_display_base default_base);
54 static
55 uint32_t tracer_print_gather_float_type(const struct side_type_gather *type_gather, const void *_ptr);
56 static
57 uint32_t tracer_print_gather_string_type(const struct side_type_gather *type_gather, const void *_ptr);
58 static
59 uint32_t tracer_print_gather_enum_type(const struct side_type_gather *type_gather, const void *_ptr);
60 static
61 uint32_t tracer_print_gather_struct(const struct side_type_gather *type_gather, const void *_ptr);
62 static
63 uint32_t tracer_print_gather_array(const struct side_type_gather *type_gather, const void *_ptr);
64 static
65 uint32_t tracer_print_gather_vla(const struct side_type_gather *type_gather, const void *_ptr,
66 const void *_length_ptr);
67 static
68 void tracer_print_type(const struct side_type *type_desc, const struct side_arg *item);
69
70 static
71 void tracer_convert_string_to_utf8(const void *p, uint8_t unit_size, enum side_type_label_byte_order byte_order,
72 size_t *strlen_with_null,
73 char **output_str)
74 {
75 size_t ret, inbytesleft = 0, outbytesleft, bufsize, input_size;
76 const char *str = p, *fromcode;
77 char *inbuf = (char *) p, *outbuf, *buf;
78 iconv_t cd;
79
80 switch (unit_size) {
81 case 1:
82 if (strlen_with_null)
83 *strlen_with_null = strlen(str) + 1;
84 *output_str = (char *) str;
85 return;
86 case 2:
87 {
88 const uint16_t *p16 = p;
89
90 switch (byte_order) {
91 case SIDE_TYPE_BYTE_ORDER_LE:
92 {
93 fromcode = "UTF-16LE";
94 break;
95 }
96 case SIDE_TYPE_BYTE_ORDER_BE:
97 {
98 fromcode = "UTF-16BE";
99 break;
100 }
101 default:
102 fprintf(stderr, "Unknown byte order\n");
103 abort();
104 }
105 for (; *p16; p16++)
106 inbytesleft += 2;
107 input_size = inbytesleft + 2;
108 /*
109 * Worse case is U+FFFF UTF-16 (2 bytes) converting to
110 * { ef, bf, bf } UTF-8 (3 bytes).
111 */
112 bufsize = inbytesleft / 2 * 3 + 1;
113 break;
114 }
115 case 4:
116 {
117 const uint32_t *p32 = p;
118
119 switch (byte_order) {
120 case SIDE_TYPE_BYTE_ORDER_LE:
121 {
122 fromcode = "UTF-32LE";
123 break;
124 }
125 case SIDE_TYPE_BYTE_ORDER_BE:
126 {
127 fromcode = "UTF-32BE";
128 break;
129 }
130 default:
131 fprintf(stderr, "Unknown byte order\n");
132 abort();
133 }
134 for (; *p32; p32++)
135 inbytesleft += 4;
136 input_size = inbytesleft + 4;
137 /*
138 * Each 4-byte UTF-32 character converts to at most a
139 * 4-byte UTF-8 character.
140 */
141 bufsize = inbytesleft + 1;
142 break;
143 }
144 default:
145 fprintf(stderr, "Unknown string unit size %" PRIu8 "\n", unit_size);
146 abort();
147 }
148
149 cd = iconv_open("UTF8", fromcode);
150 if (cd == (iconv_t) -1) {
151 perror("iconv_open");
152 abort();
153 }
154 buf = malloc(bufsize);
155 if (!buf) {
156 abort();
157 }
158 outbuf = (char *) buf;
159 outbytesleft = bufsize;
160 ret = iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft);
161 if (ret == (size_t) -1) {
162 perror("iconv");
163 abort();
164 }
165 if (inbytesleft) {
166 fprintf(stderr, "Buffer too small to convert string input\n");
167 abort();
168 }
169 (*outbuf++) = '\0';
170 if (iconv_close(cd) == -1) {
171 perror("iconv_close");
172 abort();
173 }
174 if (strlen_with_null)
175 *strlen_with_null = input_size;
176 *output_str = buf;
177 }
178
179 static
180 void tracer_print_string(const void *p, uint8_t unit_size, enum side_type_label_byte_order byte_order,
181 size_t *strlen_with_null)
182 {
183 char *output_str = NULL;
184
185 tracer_convert_string_to_utf8(p, unit_size, byte_order, strlen_with_null, &output_str);
186 printf("\"%s\"", output_str);
187 if (output_str != p)
188 free(output_str);
189 }
190
191 static
192 void side_check_value_u64(union int_value v)
193 {
194 if (v.u[SIDE_INTEGER128_SPLIT_HIGH]) {
195 fprintf(stderr, "Unexpected integer value\n");
196 abort();
197 }
198 }
199
200 static
201 void side_check_value_s64(union int_value v)
202 {
203 if (v.s[SIDE_INTEGER128_SPLIT_LOW] & (1ULL << 63)) {
204 if (v.s[SIDE_INTEGER128_SPLIT_HIGH] != ~0LL) {
205 fprintf(stderr, "Unexpected integer value\n");
206 abort();
207 }
208 } else {
209 if (v.s[SIDE_INTEGER128_SPLIT_HIGH]) {
210 fprintf(stderr, "Unexpected integer value\n");
211 abort();
212 }
213 }
214 }
215
216 static
217 int64_t get_attr_integer64_value(const struct side_attr *attr)
218 {
219 int64_t val;
220
221 switch (side_enum_get(attr->value.type)) {
222 case SIDE_ATTR_TYPE_U8:
223 val = attr->value.u.integer_value.side_u8;
224 break;
225 case SIDE_ATTR_TYPE_U16:
226 val = attr->value.u.integer_value.side_u16;
227 break;
228 case SIDE_ATTR_TYPE_U32:
229 val = attr->value.u.integer_value.side_u32;
230 break;
231 case SIDE_ATTR_TYPE_U64:
232 val = attr->value.u.integer_value.side_u64;
233 break;
234 case SIDE_ATTR_TYPE_U128:
235 {
236 union int_value v = {
237 .u = {
238 [SIDE_INTEGER128_SPLIT_LOW] = attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_LOW],
239 [SIDE_INTEGER128_SPLIT_HIGH] = attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_HIGH],
240 },
241 };
242 side_check_value_u64(v);
243 val = v.u[SIDE_INTEGER128_SPLIT_LOW];
244 break;
245 }
246 case SIDE_ATTR_TYPE_S8:
247 val = attr->value.u.integer_value.side_s8;
248 break;
249 case SIDE_ATTR_TYPE_S16:
250 val = attr->value.u.integer_value.side_s16;
251 break;
252 case SIDE_ATTR_TYPE_S32:
253 val = attr->value.u.integer_value.side_s32;
254 break;
255 case SIDE_ATTR_TYPE_S64:
256 val = attr->value.u.integer_value.side_s64;
257 break;
258 case SIDE_ATTR_TYPE_S128:
259 {
260 union int_value v = {
261 .s = {
262 [SIDE_INTEGER128_SPLIT_LOW] = attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_LOW],
263 [SIDE_INTEGER128_SPLIT_HIGH] = attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_HIGH],
264 },
265 };
266 side_check_value_s64(v);
267 val = v.s[SIDE_INTEGER128_SPLIT_LOW];
268 break;
269 }
270 default:
271 fprintf(stderr, "Unexpected attribute type\n");
272 abort();
273 }
274 return val;
275 }
276
277 static
278 enum tracer_display_base get_attr_display_base(const struct side_attr *_attr, uint32_t nr_attr,
279 enum tracer_display_base default_base)
280 {
281 uint32_t i;
282
283 for (i = 0; i < nr_attr; i++) {
284 const struct side_attr *attr = &_attr[i];
285 char *utf8_str = NULL;
286 bool cmp;
287
288 tracer_convert_string_to_utf8(side_ptr_get(attr->key.p), attr->key.unit_size,
289 side_enum_get(attr->key.byte_order), NULL, &utf8_str);
290 cmp = strcmp(utf8_str, "std.integer.base");
291 if (utf8_str != side_ptr_get(attr->key.p))
292 free(utf8_str);
293 if (!cmp) {
294 int64_t val = get_attr_integer64_value(attr);
295
296 switch (val) {
297 case 2:
298 return TRACER_DISPLAY_BASE_2;
299 case 8:
300 return TRACER_DISPLAY_BASE_8;
301 case 10:
302 return TRACER_DISPLAY_BASE_10;
303 case 16:
304 return TRACER_DISPLAY_BASE_16;
305 default:
306 fprintf(stderr, "Unexpected integer display base: %" PRId64 "\n", val);
307 abort();
308 }
309 }
310 }
311 return default_base; /* Default */
312 }
313
314 static
315 void tracer_print_attr_type(const char *separator, const struct side_attr *attr)
316 {
317 char *utf8_str = NULL;
318
319 tracer_convert_string_to_utf8(side_ptr_get(attr->key.p), attr->key.unit_size,
320 side_enum_get(attr->key.byte_order), NULL, &utf8_str);
321 printf("{ key%s \"%s\", value%s ", separator, utf8_str, separator);
322 if (utf8_str != side_ptr_get(attr->key.p))
323 free(utf8_str);
324 switch (side_enum_get(attr->value.type)) {
325 case SIDE_ATTR_TYPE_BOOL:
326 printf("%s", attr->value.u.bool_value ? "true" : "false");
327 break;
328 case SIDE_ATTR_TYPE_U8:
329 printf("%" PRIu8, attr->value.u.integer_value.side_u8);
330 break;
331 case SIDE_ATTR_TYPE_U16:
332 printf("%" PRIu16, attr->value.u.integer_value.side_u16);
333 break;
334 case SIDE_ATTR_TYPE_U32:
335 printf("%" PRIu32, attr->value.u.integer_value.side_u32);
336 break;
337 case SIDE_ATTR_TYPE_U64:
338 printf("%" PRIu64, attr->value.u.integer_value.side_u64);
339 break;
340 case SIDE_ATTR_TYPE_U128:
341 if (attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_HIGH] == 0) {
342 printf("0x%" PRIx64, attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_LOW]);
343 } else {
344 printf("0x%" PRIx64 "%016" PRIx64,
345 attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_HIGH],
346 attr->value.u.integer_value.side_u128_split[SIDE_INTEGER128_SPLIT_LOW]);
347 }
348 break;
349 case SIDE_ATTR_TYPE_S8:
350 printf("%" PRId8, attr->value.u.integer_value.side_s8);
351 break;
352 case SIDE_ATTR_TYPE_S16:
353 printf("%" PRId16, attr->value.u.integer_value.side_s16);
354 break;
355 case SIDE_ATTR_TYPE_S32:
356 printf("%" PRId32, attr->value.u.integer_value.side_s32);
357 break;
358 case SIDE_ATTR_TYPE_S64:
359 printf("%" PRId64, attr->value.u.integer_value.side_s64);
360 break;
361 case SIDE_ATTR_TYPE_S128:
362 if (attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_HIGH] == 0) {
363 printf("0x%" PRIx64, attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_LOW]);
364 } else {
365 printf("0x%" PRIx64 "%016" PRIx64,
366 attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_HIGH],
367 attr->value.u.integer_value.side_s128_split[SIDE_INTEGER128_SPLIT_LOW]);
368 }
369 break;
370 case SIDE_ATTR_TYPE_FLOAT_BINARY16:
371 #if __HAVE_FLOAT16
372 printf("%g", (double) attr->value.u.float_value.side_float_binary16);
373 break;
374 #else
375 fprintf(stderr, "ERROR: Unsupported binary16 float type\n");
376 abort();
377 #endif
378 case SIDE_ATTR_TYPE_FLOAT_BINARY32:
379 #if __HAVE_FLOAT32
380 printf("%g", (double) attr->value.u.float_value.side_float_binary32);
381 break;
382 #else
383 fprintf(stderr, "ERROR: Unsupported binary32 float type\n");
384 abort();
385 #endif
386 case SIDE_ATTR_TYPE_FLOAT_BINARY64:
387 #if __HAVE_FLOAT64
388 printf("%g", (double) attr->value.u.float_value.side_float_binary64);
389 break;
390 #else
391 fprintf(stderr, "ERROR: Unsupported binary64 float type\n");
392 abort();
393 #endif
394 case SIDE_ATTR_TYPE_FLOAT_BINARY128:
395 #if __HAVE_FLOAT128
396 printf("%Lg", (long double) attr->value.u.float_value.side_float_binary128);
397 break;
398 #else
399 fprintf(stderr, "ERROR: Unsupported binary128 float type\n");
400 abort();
401 #endif
402 case SIDE_ATTR_TYPE_STRING:
403 tracer_print_string(side_ptr_get(attr->value.u.string_value.p),
404 attr->value.u.string_value.unit_size,
405 side_enum_get(attr->value.u.string_value.byte_order), NULL);
406 break;
407 default:
408 fprintf(stderr, "ERROR: <UNKNOWN ATTRIBUTE TYPE>");
409 abort();
410 }
411 printf(" }");
412 }
413
414 static
415 void print_attributes(const char *prefix_str, const char *separator,
416 const struct side_attr *attr, uint32_t nr_attr)
417 {
418 uint32_t i;
419
420 if (!nr_attr)
421 return;
422 printf("%s%s [ ", prefix_str, separator);
423 for (i = 0; i < nr_attr; i++) {
424 printf("%s", i ? ", " : "");
425 tracer_print_attr_type(separator, &attr[i]);
426 }
427 printf(" ]");
428 }
429
430 static
431 union int_value tracer_load_integer_value(const struct side_type_integer *type_integer,
432 const union side_integer_value *value,
433 uint16_t offset_bits, uint16_t *_len_bits)
434 {
435 union int_value v = {};
436 uint16_t len_bits;
437 bool reverse_bo;
438
439 if (!type_integer->len_bits)
440 len_bits = type_integer->integer_size * CHAR_BIT;
441 else
442 len_bits = type_integer->len_bits;
443 if (len_bits + offset_bits > type_integer->integer_size * CHAR_BIT)
444 abort();
445 reverse_bo = side_enum_get(type_integer->byte_order) != SIDE_TYPE_BYTE_ORDER_HOST;
446 switch (type_integer->integer_size) {
447 case 1:
448 if (type_integer->signedness)
449 v.s[SIDE_INTEGER128_SPLIT_LOW] = value->side_s8;
450 else
451 v.u[SIDE_INTEGER128_SPLIT_LOW] = value->side_u8;
452 break;
453 case 2:
454 if (type_integer->signedness) {
455 int16_t side_s16;
456
457 side_s16 = value->side_s16;
458 if (reverse_bo)
459 side_s16 = side_bswap_16(side_s16);
460 v.s[SIDE_INTEGER128_SPLIT_LOW] = side_s16;
461 } else {
462 uint16_t side_u16;
463
464 side_u16 = value->side_u16;
465 if (reverse_bo)
466 side_u16 = side_bswap_16(side_u16);
467 v.u[SIDE_INTEGER128_SPLIT_LOW] = side_u16;
468 }
469 break;
470 case 4:
471 if (type_integer->signedness) {
472 int32_t side_s32;
473
474 side_s32 = value->side_s32;
475 if (reverse_bo)
476 side_s32 = side_bswap_32(side_s32);
477 v.s[SIDE_INTEGER128_SPLIT_LOW] = side_s32;
478 } else {
479 uint32_t side_u32;
480
481 side_u32 = value->side_u32;
482 if (reverse_bo)
483 side_u32 = side_bswap_32(side_u32);
484 v.u[SIDE_INTEGER128_SPLIT_LOW] = side_u32;
485 }
486 break;
487 case 8:
488 if (type_integer->signedness) {
489 int64_t side_s64;
490
491 side_s64 = value->side_s64;
492 if (reverse_bo)
493 side_s64 = side_bswap_64(side_s64);
494 v.s[SIDE_INTEGER128_SPLIT_LOW] = side_s64;
495 } else {
496 uint64_t side_u64;
497
498 side_u64 = value->side_u64;
499 if (reverse_bo)
500 side_u64 = side_bswap_64(side_u64);
501 v.u[SIDE_INTEGER128_SPLIT_LOW] = side_u64;
502 }
503 break;
504 case 16:
505 if (type_integer->signedness) {
506 int64_t side_s64[NR_SIDE_INTEGER128_SPLIT];
507
508 side_s64[SIDE_INTEGER128_SPLIT_LOW] = value->side_s128_split[SIDE_INTEGER128_SPLIT_LOW];
509 side_s64[SIDE_INTEGER128_SPLIT_HIGH] = value->side_s128_split[SIDE_INTEGER128_SPLIT_HIGH];
510 if (reverse_bo) {
511 side_s64[SIDE_INTEGER128_SPLIT_LOW] = side_bswap_64(side_s64[SIDE_INTEGER128_SPLIT_LOW]);
512 side_s64[SIDE_INTEGER128_SPLIT_HIGH] = side_bswap_64(side_s64[SIDE_INTEGER128_SPLIT_HIGH]);
513 v.s[SIDE_INTEGER128_SPLIT_LOW] = side_s64[SIDE_INTEGER128_SPLIT_HIGH];
514 v.s[SIDE_INTEGER128_SPLIT_HIGH] = side_s64[SIDE_INTEGER128_SPLIT_LOW];
515 } else {
516 v.s[SIDE_INTEGER128_SPLIT_LOW] = side_s64[SIDE_INTEGER128_SPLIT_LOW];
517 v.s[SIDE_INTEGER128_SPLIT_HIGH] = side_s64[SIDE_INTEGER128_SPLIT_HIGH];
518 }
519 } else {
520 uint64_t side_u64[NR_SIDE_INTEGER128_SPLIT];
521
522 side_u64[SIDE_INTEGER128_SPLIT_LOW] = value->side_u128_split[SIDE_INTEGER128_SPLIT_LOW];
523 side_u64[SIDE_INTEGER128_SPLIT_HIGH] = value->side_u128_split[SIDE_INTEGER128_SPLIT_HIGH];
524 if (reverse_bo) {
525 side_u64[SIDE_INTEGER128_SPLIT_LOW] = side_bswap_64(side_u64[SIDE_INTEGER128_SPLIT_LOW]);
526 side_u64[SIDE_INTEGER128_SPLIT_HIGH] = side_bswap_64(side_u64[SIDE_INTEGER128_SPLIT_HIGH]);
527 v.u[SIDE_INTEGER128_SPLIT_LOW] = side_u64[SIDE_INTEGER128_SPLIT_HIGH];
528 v.u[SIDE_INTEGER128_SPLIT_HIGH] = side_u64[SIDE_INTEGER128_SPLIT_LOW];
529 } else {
530 v.u[SIDE_INTEGER128_SPLIT_LOW] = side_u64[SIDE_INTEGER128_SPLIT_LOW];
531 v.u[SIDE_INTEGER128_SPLIT_HIGH] = side_u64[SIDE_INTEGER128_SPLIT_HIGH];
532 }
533 }
534 break;
535 default:
536 abort();
537 }
538 if (type_integer->integer_size <= 8) {
539 v.u[SIDE_INTEGER128_SPLIT_LOW] >>= offset_bits;
540 if (len_bits < 64) {
541 v.u[SIDE_INTEGER128_SPLIT_LOW] &= (1ULL << len_bits) - 1;
542 if (type_integer->signedness) {
543 /* Sign-extend. */
544 if (v.u[SIDE_INTEGER128_SPLIT_LOW] & (1ULL << (len_bits - 1))) {
545 v.u[SIDE_INTEGER128_SPLIT_LOW] |= ~((1ULL << len_bits) - 1);
546 v.u[SIDE_INTEGER128_SPLIT_HIGH] = ~0ULL;
547 }
548 }
549 }
550 } else {
551 //TODO: Implement 128-bit integer with len_bits != 128 or nonzero offset_bits
552 if (len_bits < 128 || offset_bits != 0)
553 abort();
554 }
555 if (_len_bits)
556 *_len_bits = len_bits;
557 return v;
558 }
559
560 static
561 void print_enum_labels(const struct side_enum_mappings *mappings, union int_value v)
562 {
563 uint32_t i, print_count = 0;
564
565 side_check_value_s64(v);
566 printf(", labels: [ ");
567 for (i = 0; i < mappings->nr_mappings; i++) {
568 const struct side_enum_mapping *mapping = &side_ptr_get(mappings->mappings)[i];
569
570 if (mapping->range_end < mapping->range_begin) {
571 fprintf(stderr, "ERROR: Unexpected enum range: %" PRIu64 "-%" PRIu64 "\n",
572 mapping->range_begin, mapping->range_end);
573 abort();
574 }
575 if (v.s[SIDE_INTEGER128_SPLIT_LOW] >= mapping->range_begin && v.s[SIDE_INTEGER128_SPLIT_LOW] <= mapping->range_end) {
576 printf("%s", print_count++ ? ", " : "");
577 tracer_print_string(side_ptr_get(mapping->label.p), mapping->label.unit_size,
578 side_enum_get(mapping->label.byte_order), NULL);
579 }
580 }
581 if (!print_count)
582 printf("<NO LABEL>");
583 printf(" ]");
584 }
585
586 static
587 void tracer_print_enum(const struct side_type *type_desc, const struct side_arg *item)
588 {
589 const struct side_enum_mappings *mappings = side_ptr_get(type_desc->u.side_enum.mappings);
590 const struct side_type *elem_type = side_ptr_get(type_desc->u.side_enum.elem_type);
591 union int_value v;
592
593 if (side_enum_get(elem_type->type) != side_enum_get(item->type)) {
594 fprintf(stderr, "ERROR: Unexpected enum element type\n");
595 abort();
596 }
597 v = tracer_load_integer_value(&elem_type->u.side_integer,
598 &item->u.side_static.integer_value, 0, NULL);
599 print_attributes("attr", ":", side_ptr_get(mappings->attr), mappings->nr_attr);
600 printf("%s", mappings->nr_attr ? ", " : "");
601 tracer_print_type(elem_type, item);
602 print_enum_labels(mappings, v);
603 }
604
605 static
606 uint32_t elem_type_to_stride(const struct side_type *elem_type)
607 {
608 uint32_t stride_bit;
609
610 switch (side_enum_get(elem_type->type)) {
611 case SIDE_TYPE_BYTE:
612 stride_bit = 8;
613 break;
614
615 case SIDE_TYPE_U8:
616 case SIDE_TYPE_U16:
617 case SIDE_TYPE_U32:
618 case SIDE_TYPE_U64:
619 case SIDE_TYPE_U128:
620 case SIDE_TYPE_S8:
621 case SIDE_TYPE_S16:
622 case SIDE_TYPE_S32:
623 case SIDE_TYPE_S64:
624 case SIDE_TYPE_S128:
625 return elem_type->u.side_integer.integer_size * CHAR_BIT;
626 default:
627 fprintf(stderr, "ERROR: Unexpected enum bitmap element type\n");
628 abort();
629 }
630 return stride_bit;
631 }
632
633 static
634 void tracer_print_enum_bitmap(const struct side_type *type_desc,
635 const struct side_arg *item)
636 {
637 const struct side_enum_bitmap_mappings *side_enum_mappings = side_ptr_get(type_desc->u.side_enum_bitmap.mappings);
638 const struct side_type *enum_elem_type = side_ptr_get(type_desc->u.side_enum_bitmap.elem_type), *elem_type;
639 uint32_t i, print_count = 0, stride_bit, nr_items;
640 const struct side_arg *array_item;
641
642 switch (side_enum_get(enum_elem_type->type)) {
643 case SIDE_TYPE_U8: /* Fall-through */
644 case SIDE_TYPE_BYTE: /* Fall-through */
645 case SIDE_TYPE_U16: /* Fall-through */
646 case SIDE_TYPE_U32: /* Fall-through */
647 case SIDE_TYPE_U64: /* Fall-through */
648 case SIDE_TYPE_U128: /* Fall-through */
649 case SIDE_TYPE_S8: /* Fall-through */
650 case SIDE_TYPE_S16: /* Fall-through */
651 case SIDE_TYPE_S32: /* Fall-through */
652 case SIDE_TYPE_S64: /* Fall-through */
653 case SIDE_TYPE_S128:
654 elem_type = enum_elem_type;
655 array_item = item;
656 nr_items = 1;
657 break;
658 case SIDE_TYPE_ARRAY:
659 elem_type = side_ptr_get(enum_elem_type->u.side_array.elem_type);
660 array_item = side_ptr_get(side_ptr_get(item->u.side_static.side_array)->sav);
661 nr_items = type_desc->u.side_array.length;
662 break;
663 case SIDE_TYPE_VLA:
664 elem_type = side_ptr_get(enum_elem_type->u.side_vla.elem_type);
665 array_item = side_ptr_get(side_ptr_get(item->u.side_static.side_vla)->sav);
666 nr_items = side_ptr_get(item->u.side_static.side_vla)->len;
667 break;
668 default:
669 fprintf(stderr, "ERROR: Unexpected enum element type\n");
670 abort();
671 }
672 stride_bit = elem_type_to_stride(elem_type);
673
674 print_attributes("attr", ":", side_ptr_get(side_enum_mappings->attr), side_enum_mappings->nr_attr);
675 printf("%s", side_enum_mappings->nr_attr ? ", " : "");
676 printf("labels: [ ");
677 for (i = 0; i < side_enum_mappings->nr_mappings; i++) {
678 const struct side_enum_bitmap_mapping *mapping = &side_ptr_get(side_enum_mappings->mappings)[i];
679 bool match = false;
680 uint64_t bit;
681
682 if (mapping->range_end < mapping->range_begin) {
683 fprintf(stderr, "ERROR: Unexpected enum bitmap range: %" PRIu64 "-%" PRIu64 "\n",
684 mapping->range_begin, mapping->range_end);
685 abort();
686 }
687 for (bit = mapping->range_begin; bit <= mapping->range_end; bit++) {
688 if (bit > (nr_items * stride_bit) - 1)
689 break;
690 if (side_enum_get(elem_type->type) == SIDE_TYPE_BYTE) {
691 uint8_t v = array_item[bit / 8].u.side_static.byte_value;
692 if (v & (1ULL << (bit % 8))) {
693 match = true;
694 goto match;
695 }
696 } else {
697 union int_value v = {};
698
699 v = tracer_load_integer_value(&elem_type->u.side_integer,
700 &array_item[bit / stride_bit].u.side_static.integer_value,
701 0, NULL);
702 side_check_value_u64(v);
703 if (v.u[SIDE_INTEGER128_SPLIT_LOW] & (1ULL << (bit % stride_bit))) {
704 match = true;
705 goto match;
706 }
707 }
708 }
709 match:
710 if (match) {
711 printf("%s", print_count++ ? ", " : "");
712 tracer_print_string(side_ptr_get(mapping->label.p), mapping->label.unit_size,
713 side_enum_get(mapping->label.byte_order), NULL);
714 }
715 }
716 if (!print_count)
717 printf("<NO LABEL>");
718 printf(" ]");
719 }
720
721 static
722 void print_integer_binary(uint64_t v[NR_SIDE_INTEGER128_SPLIT], int bits)
723 {
724 int bit;
725
726 printf("0b");
727 if (bits > 64) {
728 bits -= 64;
729 v[SIDE_INTEGER128_SPLIT_HIGH] <<= 64 - bits;
730 for (bit = 0; bit < bits; bit++) {
731 printf("%c", v[SIDE_INTEGER128_SPLIT_HIGH] & (1ULL << 63) ? '1' : '0');
732 v[SIDE_INTEGER128_SPLIT_HIGH] <<= 1;
733 }
734 bits = 64;
735 }
736 v[SIDE_INTEGER128_SPLIT_LOW] <<= 64 - bits;
737 for (bit = 0; bit < bits; bit++) {
738 printf("%c", v[SIDE_INTEGER128_SPLIT_LOW] & (1ULL << 63) ? '1' : '0');
739 v[SIDE_INTEGER128_SPLIT_LOW] <<= 1;
740 }
741 }
742
743 static
744 void tracer_print_type_header(const char *separator,
745 const struct side_attr *attr, uint32_t nr_attr)
746 {
747 print_attributes("attr", separator, attr, nr_attr);
748 printf("%s", nr_attr ? ", " : "");
749 printf("value%s ", separator);
750 }
751
752 static
753 void tracer_print_type_bool(const char *separator,
754 const struct side_type_bool *type_bool,
755 const union side_bool_value *value,
756 uint16_t offset_bits)
757 {
758 uint32_t len_bits;
759 bool reverse_bo;
760 uint64_t v;
761
762 if (!type_bool->len_bits)
763 len_bits = type_bool->bool_size * CHAR_BIT;
764 else
765 len_bits = type_bool->len_bits;
766 if (len_bits + offset_bits > type_bool->bool_size * CHAR_BIT)
767 abort();
768 reverse_bo = side_enum_get(type_bool->byte_order) != SIDE_TYPE_BYTE_ORDER_HOST;
769 switch (type_bool->bool_size) {
770 case 1:
771 v = value->side_bool8;
772 break;
773 case 2:
774 {
775 uint16_t side_u16;
776
777 side_u16 = value->side_bool16;
778 if (reverse_bo)
779 side_u16 = side_bswap_16(side_u16);
780 v = side_u16;
781 break;
782 }
783 case 4:
784 {
785 uint32_t side_u32;
786
787 side_u32 = value->side_bool32;
788 if (reverse_bo)
789 side_u32 = side_bswap_32(side_u32);
790 v = side_u32;
791 break;
792 }
793 case 8:
794 {
795 uint64_t side_u64;
796
797 side_u64 = value->side_bool64;
798 if (reverse_bo)
799 side_u64 = side_bswap_64(side_u64);
800 v = side_u64;
801 break;
802 }
803 default:
804 abort();
805 }
806 v >>= offset_bits;
807 if (len_bits < 64)
808 v &= (1ULL << len_bits) - 1;
809 tracer_print_type_header(separator, side_ptr_get(type_bool->attr), type_bool->nr_attr);
810 printf("%s", v ? "true" : "false");
811 }
812
813 /* 2^128 - 1 */
814 #define U128_BASE_10_ARRAY_LEN sizeof("340282366920938463463374607431768211455")
815 /* -2^127 */
816 #define S128_BASE_10_ARRAY_LEN sizeof("-170141183460469231731687303715884105728")
817
818 /*
819 * u128_tostring_base_10 is inspired from https://stackoverflow.com/a/4364365
820 */
821 static
822 void u128_tostring_base_10(union int_value v, char str[U128_BASE_10_ARRAY_LEN])
823 {
824 int d[39] = {}, i, j, str_i = 0;
825
826 for (i = 63; i > -1; i--) {
827 if ((v.u[SIDE_INTEGER128_SPLIT_HIGH] >> i) & 1)
828 d[0]++;
829 for (j = 0; j < 39; j++)
830 d[j] *= 2;
831 for (j = 0; j < 38; j++) {
832 d[j + 1] += d[j] / 10;
833 d[j] %= 10;
834 }
835 }
836 for (i = 63; i > -1; i--) {
837 if ((v.u[SIDE_INTEGER128_SPLIT_LOW] >> i) & 1)
838 d[0]++;
839 if (i > 0) {
840 for (j = 0; j < 39; j++)
841 d[j] *= 2;
842 }
843 for (j = 0; j < 38; j++) {
844 d[j + 1] += d[j] / 10;
845 d[j] %= 10;
846 }
847 }
848 for (i = 38; i > 0; i--)
849 if (d[i] > 0)
850 break;
851 for (; i > -1; i--) {
852 str[str_i++] = '0' + d[i];
853 }
854 str[str_i] = '\0';
855 }
856
857 static
858 void s128_tostring_base_10(union int_value v, char str[S128_BASE_10_ARRAY_LEN])
859 {
860 uint64_t low, high, tmp;
861
862 if (v.s[SIDE_INTEGER128_SPLIT_HIGH] >= 0) {
863 /* Positive. */
864 v.u[SIDE_INTEGER128_SPLIT_LOW] = (uint64_t) v.s[SIDE_INTEGER128_SPLIT_LOW];
865 v.u[SIDE_INTEGER128_SPLIT_HIGH] = (uint64_t) v.s[SIDE_INTEGER128_SPLIT_HIGH];
866 u128_tostring_base_10(v, str);
867 return;
868 }
869
870 /* Negative. */
871
872 /* Special-case minimum value, which has no positive signed representation. */
873 if ((v.s[SIDE_INTEGER128_SPLIT_HIGH] == INT64_MIN) && (v.s[SIDE_INTEGER128_SPLIT_LOW] == 0)) {
874 memcpy(str, "-170141183460469231731687303715884105728", S128_BASE_10_ARRAY_LEN);
875 return;
876 }
877 /* Convert from two's complement. */
878 high = ~(uint64_t) v.s[SIDE_INTEGER128_SPLIT_HIGH];
879 low = ~(uint64_t) v.s[SIDE_INTEGER128_SPLIT_LOW];
880 tmp = low + 1;
881 if (tmp < low) {
882 high++;
883 /* Clear overflow to sign bit. */
884 high &= ~0x8000000000000000ULL;
885 }
886 v.u[SIDE_INTEGER128_SPLIT_LOW] = tmp;
887 v.u[SIDE_INTEGER128_SPLIT_HIGH] = high;
888 str[0] = '-';
889 u128_tostring_base_10(v, str + 1);
890 }
891
892 /* 2^128 - 1 */
893 #define U128_BASE_8_ARRAY_LEN sizeof("3777777777777777777777777777777777777777777")
894
895 static
896 void u128_tostring_base_8(union int_value v, char str[U128_BASE_8_ARRAY_LEN])
897 {
898 int d[43] = {}, i, j, str_i = 0;
899
900 for (i = 63; i > -1; i--) {
901 if ((v.u[SIDE_INTEGER128_SPLIT_HIGH] >> i) & 1)
902 d[0]++;
903 for (j = 0; j < 43; j++)
904 d[j] *= 2;
905 for (j = 0; j < 42; j++) {
906 d[j + 1] += d[j] / 8;
907 d[j] %= 8;
908 }
909 }
910 for (i = 63; i > -1; i--) {
911 if ((v.u[SIDE_INTEGER128_SPLIT_LOW] >> i) & 1)
912 d[0]++;
913 if (i > 0) {
914 for (j = 0; j < 43; j++)
915 d[j] *= 2;
916 }
917 for (j = 0; j < 42; j++) {
918 d[j + 1] += d[j] / 8;
919 d[j] %= 8;
920 }
921 }
922 for (i = 42; i > 0; i--)
923 if (d[i] > 0)
924 break;
925 for (; i > -1; i--) {
926 str[str_i++] = '0' + d[i];
927 }
928 str[str_i] = '\0';
929 }
930
931 static
932 void tracer_print_type_integer(const char *separator,
933 const struct side_type_integer *type_integer,
934 const union side_integer_value *value,
935 uint16_t offset_bits,
936 enum tracer_display_base default_base)
937 {
938 enum tracer_display_base base;
939 union int_value v;
940 uint16_t len_bits;
941
942 v = tracer_load_integer_value(type_integer, value, offset_bits, &len_bits);
943 tracer_print_type_header(separator, side_ptr_get(type_integer->attr), type_integer->nr_attr);
944 base = get_attr_display_base(side_ptr_get(type_integer->attr), type_integer->nr_attr, default_base);
945 switch (base) {
946 case TRACER_DISPLAY_BASE_2:
947 print_integer_binary(v.u, len_bits);
948 break;
949 case TRACER_DISPLAY_BASE_8:
950 /* Clear sign bits beyond len_bits */
951 if (len_bits < 64) {
952 v.u[SIDE_INTEGER128_SPLIT_LOW] &= (1ULL << len_bits) - 1;
953 v.u[SIDE_INTEGER128_SPLIT_HIGH] = 0;
954 } else if (len_bits < 128) {
955 v.u[SIDE_INTEGER128_SPLIT_HIGH] &= (1ULL << (len_bits - 64)) - 1;
956 }
957 if (len_bits <= 64) {
958 printf("0o%" PRIo64, v.u[SIDE_INTEGER128_SPLIT_LOW]);
959 } else {
960 char str[U128_BASE_8_ARRAY_LEN];
961
962 u128_tostring_base_8(v, str);
963 printf("0o%s", str);
964 }
965 break;
966 case TRACER_DISPLAY_BASE_10:
967 if (len_bits <= 64) {
968 if (type_integer->signedness)
969 printf("%" PRId64, v.s[SIDE_INTEGER128_SPLIT_LOW]);
970 else
971 printf("%" PRIu64, v.u[SIDE_INTEGER128_SPLIT_LOW]);
972 } else {
973 if (type_integer->signedness) {
974 char str[S128_BASE_10_ARRAY_LEN];
975 s128_tostring_base_10(v, str);
976 printf("%s", str);
977 } else {
978 char str[U128_BASE_10_ARRAY_LEN];
979 u128_tostring_base_10(v, str);
980 printf("%s", str);
981 }
982 }
983 break;
984 case TRACER_DISPLAY_BASE_16:
985 /* Clear sign bits beyond len_bits */
986 if (len_bits < 64) {
987 v.u[SIDE_INTEGER128_SPLIT_LOW] &= (1ULL << len_bits) - 1;
988 v.u[SIDE_INTEGER128_SPLIT_HIGH] = 0;
989 } else if (len_bits < 128) {
990 v.u[SIDE_INTEGER128_SPLIT_HIGH] &= (1ULL << (len_bits - 64)) - 1;
991 }
992 if (len_bits <= 64 || v.u[SIDE_INTEGER128_SPLIT_HIGH] == 0) {
993 printf("0x%" PRIx64, v.u[SIDE_INTEGER128_SPLIT_LOW]);
994 } else {
995 printf("0x%" PRIx64 "%016" PRIx64,
996 v.u[SIDE_INTEGER128_SPLIT_HIGH],
997 v.u[SIDE_INTEGER128_SPLIT_LOW]);
998 }
999 break;
1000 default:
1001 abort();
1002 }
1003 }
1004
1005 static
1006 void tracer_print_type_float(const char *separator,
1007 const struct side_type_float *type_float,
1008 const union side_float_value *value)
1009 {
1010 bool reverse_bo;
1011
1012 tracer_print_type_header(separator, side_ptr_get(type_float->attr), type_float->nr_attr);
1013 reverse_bo = side_enum_get(type_float->byte_order) != SIDE_TYPE_FLOAT_WORD_ORDER_HOST;
1014 switch (type_float->float_size) {
1015 case 2:
1016 {
1017 #if __HAVE_FLOAT16
1018 union {
1019 _Float16 f;
1020 uint16_t u;
1021 } float16 = {
1022 .f = value->side_float_binary16,
1023 };
1024
1025 if (reverse_bo)
1026 float16.u = side_bswap_16(float16.u);
1027 printf("%g", (double) float16.f);
1028 break;
1029 #else
1030 fprintf(stderr, "ERROR: Unsupported binary16 float type\n");
1031 abort();
1032 #endif
1033 }
1034 case 4:
1035 {
1036 #if __HAVE_FLOAT32
1037 union {
1038 _Float32 f;
1039 uint32_t u;
1040 } float32 = {
1041 .f = value->side_float_binary32,
1042 };
1043
1044 if (reverse_bo)
1045 float32.u = side_bswap_32(float32.u);
1046 printf("%g", (double) float32.f);
1047 break;
1048 #else
1049 fprintf(stderr, "ERROR: Unsupported binary32 float type\n");
1050 abort();
1051 #endif
1052 }
1053 case 8:
1054 {
1055 #if __HAVE_FLOAT64
1056 union {
1057 _Float64 f;
1058 uint64_t u;
1059 } float64 = {
1060 .f = value->side_float_binary64,
1061 };
1062
1063 if (reverse_bo)
1064 float64.u = side_bswap_64(float64.u);
1065 printf("%g", (double) float64.f);
1066 break;
1067 #else
1068 fprintf(stderr, "ERROR: Unsupported binary64 float type\n");
1069 abort();
1070 #endif
1071 }
1072 case 16:
1073 {
1074 #if __HAVE_FLOAT128
1075 union {
1076 _Float128 f;
1077 char arr[16];
1078 } float128 = {
1079 .f = value->side_float_binary128,
1080 };
1081
1082 if (reverse_bo)
1083 side_bswap_128p(float128.arr);
1084 printf("%Lg", (long double) float128.f);
1085 break;
1086 #else
1087 fprintf(stderr, "ERROR: Unsupported binary128 float type\n");
1088 abort();
1089 #endif
1090 }
1091 default:
1092 fprintf(stderr, "ERROR: Unknown float size\n");
1093 abort();
1094 }
1095 }
1096
1097 static
1098 void tracer_print_type(const struct side_type *type_desc, const struct side_arg *item)
1099 {
1100 enum side_type_label type;
1101
1102 switch (side_enum_get(type_desc->type)) {
1103 case SIDE_TYPE_ENUM:
1104 switch (side_enum_get(item->type)) {
1105 case SIDE_TYPE_U8:
1106 case SIDE_TYPE_U16:
1107 case SIDE_TYPE_U32:
1108 case SIDE_TYPE_U64:
1109 case SIDE_TYPE_U128:
1110 case SIDE_TYPE_S8:
1111 case SIDE_TYPE_S16:
1112 case SIDE_TYPE_S32:
1113 case SIDE_TYPE_S64:
1114 case SIDE_TYPE_S128:
1115 break;
1116 default:
1117 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
1118 abort();
1119 break;
1120 }
1121 break;
1122
1123 case SIDE_TYPE_ENUM_BITMAP:
1124 switch (side_enum_get(item->type)) {
1125 case SIDE_TYPE_U8:
1126 case SIDE_TYPE_BYTE:
1127 case SIDE_TYPE_U16:
1128 case SIDE_TYPE_U32:
1129 case SIDE_TYPE_U64:
1130 case SIDE_TYPE_U128:
1131 case SIDE_TYPE_ARRAY:
1132 case SIDE_TYPE_VLA:
1133 break;
1134 default:
1135 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
1136 abort();
1137 break;
1138 }
1139 break;
1140
1141 case SIDE_TYPE_GATHER_ENUM:
1142 switch (side_enum_get(item->type)) {
1143 case SIDE_TYPE_GATHER_INTEGER:
1144 break;
1145 default:
1146 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
1147 abort();
1148 break;
1149 }
1150 break;
1151
1152 case SIDE_TYPE_DYNAMIC:
1153 switch (side_enum_get(item->type)) {
1154 case SIDE_TYPE_DYNAMIC_NULL:
1155 case SIDE_TYPE_DYNAMIC_BOOL:
1156 case SIDE_TYPE_DYNAMIC_INTEGER:
1157 case SIDE_TYPE_DYNAMIC_BYTE:
1158 case SIDE_TYPE_DYNAMIC_POINTER:
1159 case SIDE_TYPE_DYNAMIC_FLOAT:
1160 case SIDE_TYPE_DYNAMIC_STRING:
1161 case SIDE_TYPE_DYNAMIC_STRUCT:
1162 case SIDE_TYPE_DYNAMIC_STRUCT_VISITOR:
1163 case SIDE_TYPE_DYNAMIC_VLA:
1164 case SIDE_TYPE_DYNAMIC_VLA_VISITOR:
1165 break;
1166 default:
1167 fprintf(stderr, "ERROR: Unexpected dynamic type\n");
1168 abort();
1169 break;
1170 }
1171 break;
1172
1173 default:
1174 if (side_enum_get(type_desc->type) != side_enum_get(item->type)) {
1175 fprintf(stderr, "ERROR: type mismatch between description and arguments\n");
1176 abort();
1177 }
1178 break;
1179 }
1180
1181 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)
1182 type = side_enum_get(type_desc->type);
1183 else
1184 type = side_enum_get(item->type);
1185
1186 printf("{ ");
1187 switch (type) {
1188 /* Stack-copy basic types */
1189 case SIDE_TYPE_NULL:
1190 tracer_print_type_header(":", side_ptr_get(type_desc->u.side_null.attr),
1191 type_desc->u.side_null.nr_attr);
1192 printf("<NULL TYPE>");
1193 break;
1194
1195 case SIDE_TYPE_BOOL:
1196 tracer_print_type_bool(":", &type_desc->u.side_bool, &item->u.side_static.bool_value, 0);
1197 break;
1198
1199 case SIDE_TYPE_U8:
1200 case SIDE_TYPE_U16:
1201 case SIDE_TYPE_U32:
1202 case SIDE_TYPE_U64:
1203 case SIDE_TYPE_U128:
1204 case SIDE_TYPE_S8:
1205 case SIDE_TYPE_S16:
1206 case SIDE_TYPE_S32:
1207 case SIDE_TYPE_S64:
1208 case SIDE_TYPE_S128:
1209 tracer_print_type_integer(":", &type_desc->u.side_integer, &item->u.side_static.integer_value, 0,
1210 TRACER_DISPLAY_BASE_10);
1211 break;
1212
1213 case SIDE_TYPE_BYTE:
1214 tracer_print_type_header(":", side_ptr_get(type_desc->u.side_byte.attr), type_desc->u.side_byte.nr_attr);
1215 printf("0x%" PRIx8, item->u.side_static.byte_value);
1216 break;
1217
1218 case SIDE_TYPE_POINTER:
1219 tracer_print_type_integer(":", &type_desc->u.side_integer, &item->u.side_static.integer_value, 0,
1220 TRACER_DISPLAY_BASE_16);
1221 break;
1222
1223 case SIDE_TYPE_FLOAT_BINARY16:
1224 case SIDE_TYPE_FLOAT_BINARY32:
1225 case SIDE_TYPE_FLOAT_BINARY64:
1226 case SIDE_TYPE_FLOAT_BINARY128:
1227 tracer_print_type_float(":", &type_desc->u.side_float, &item->u.side_static.float_value);
1228 break;
1229
1230 case SIDE_TYPE_STRING_UTF8:
1231 case SIDE_TYPE_STRING_UTF16:
1232 case SIDE_TYPE_STRING_UTF32:
1233 tracer_print_type_header(":", side_ptr_get(type_desc->u.side_string.attr), type_desc->u.side_string.nr_attr);
1234 tracer_print_string(side_ptr_get(item->u.side_static.string_value),
1235 type_desc->u.side_string.unit_size, side_enum_get(type_desc->u.side_string.byte_order), NULL);
1236 break;
1237
1238 /* Stack-copy compound types */
1239 case SIDE_TYPE_STRUCT:
1240 tracer_print_struct(type_desc, side_ptr_get(item->u.side_static.side_struct));
1241 break;
1242 case SIDE_TYPE_VARIANT:
1243 tracer_print_variant(type_desc, side_ptr_get(item->u.side_static.side_variant));
1244 break;
1245 case SIDE_TYPE_ARRAY:
1246 tracer_print_array(type_desc, side_ptr_get(item->u.side_static.side_array));
1247 break;
1248 case SIDE_TYPE_VLA:
1249 tracer_print_vla(type_desc, side_ptr_get(item->u.side_static.side_vla));
1250 break;
1251 case SIDE_TYPE_VLA_VISITOR:
1252 tracer_print_vla_visitor(type_desc, side_ptr_get(item->u.side_static.side_vla_visitor));
1253 break;
1254
1255 /* Stack-copy enumeration types */
1256 case SIDE_TYPE_ENUM:
1257 tracer_print_enum(type_desc, item);
1258 break;
1259 case SIDE_TYPE_ENUM_BITMAP:
1260 tracer_print_enum_bitmap(type_desc, item);
1261 break;
1262
1263 /* Gather basic types */
1264 case SIDE_TYPE_GATHER_BOOL:
1265 (void) tracer_print_gather_bool_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_bool_gather_ptr));
1266 break;
1267 case SIDE_TYPE_GATHER_INTEGER:
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_10);
1270 break;
1271 case SIDE_TYPE_GATHER_BYTE:
1272 (void) tracer_print_gather_byte_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_byte_gather_ptr));
1273 break;
1274 case SIDE_TYPE_GATHER_POINTER:
1275 (void) tracer_print_gather_integer_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_integer_gather_ptr),
1276 TRACER_DISPLAY_BASE_16);
1277 break;
1278 case SIDE_TYPE_GATHER_FLOAT:
1279 (void) tracer_print_gather_float_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_float_gather_ptr));
1280 break;
1281 case SIDE_TYPE_GATHER_STRING:
1282 (void) tracer_print_gather_string_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_string_gather_ptr));
1283 break;
1284
1285 /* Gather compound type */
1286 case SIDE_TYPE_GATHER_STRUCT:
1287 (void) tracer_print_gather_struct(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_struct_gather_ptr));
1288 break;
1289 case SIDE_TYPE_GATHER_ARRAY:
1290 (void) tracer_print_gather_array(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_array_gather_ptr));
1291 break;
1292 case SIDE_TYPE_GATHER_VLA:
1293 (void) tracer_print_gather_vla(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_vla_gather.ptr),
1294 side_ptr_get(item->u.side_static.side_vla_gather.length_ptr));
1295 break;
1296
1297 /* Gather enumeration types */
1298 case SIDE_TYPE_GATHER_ENUM:
1299 (void) tracer_print_gather_enum_type(&type_desc->u.side_gather, side_ptr_get(item->u.side_static.side_integer_gather_ptr));
1300 break;
1301
1302 /* Dynamic basic types */
1303 case SIDE_TYPE_DYNAMIC_NULL:
1304 case SIDE_TYPE_DYNAMIC_BOOL:
1305 case SIDE_TYPE_DYNAMIC_INTEGER:
1306 case SIDE_TYPE_DYNAMIC_BYTE:
1307 case SIDE_TYPE_DYNAMIC_POINTER:
1308 case SIDE_TYPE_DYNAMIC_FLOAT:
1309 case SIDE_TYPE_DYNAMIC_STRING:
1310
1311 /* Dynamic compound types */
1312 case SIDE_TYPE_DYNAMIC_STRUCT:
1313 case SIDE_TYPE_DYNAMIC_STRUCT_VISITOR:
1314 case SIDE_TYPE_DYNAMIC_VLA:
1315 case SIDE_TYPE_DYNAMIC_VLA_VISITOR:
1316 tracer_print_dynamic(item, false);
1317 break;
1318 default:
1319 fprintf(stderr, "<UNKNOWN TYPE>\n");
1320 abort();
1321 }
1322 printf(" }");
1323 }
1324
1325 static
1326 void tracer_print_field(const struct side_event_field *item_desc, const struct side_arg *item)
1327 {
1328 printf("%s: ", side_ptr_get(item_desc->field_name));
1329 tracer_print_type(&item_desc->side_type, item);
1330 }
1331
1332 static
1333 void tracer_print_struct(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec)
1334 {
1335 const struct side_arg *sav = side_ptr_get(side_arg_vec->sav);
1336 const struct side_type_struct *side_struct = side_ptr_get(type_desc->u.side_struct);
1337 uint32_t i, side_sav_len = side_arg_vec->len;
1338
1339 if (side_struct->nr_fields != side_sav_len) {
1340 fprintf(stderr, "ERROR: number of fields mismatch between description and arguments of structure\n");
1341 abort();
1342 }
1343 print_attributes("attr", ":", side_ptr_get(side_struct->attr), side_struct->nr_attr);
1344 printf("%s", side_struct->nr_attr ? ", " : "");
1345 printf("fields: { ");
1346 for (i = 0; i < side_sav_len; i++) {
1347 printf("%s", i ? ", " : "");
1348 tracer_print_field(&side_ptr_get(side_struct->fields)[i], &sav[i]);
1349 }
1350 printf(" }");
1351 }
1352
1353 static
1354 void tracer_print_variant(const struct side_type *type_desc, const struct side_arg_variant *side_arg_variant)
1355 {
1356 const struct side_type_variant *side_type_variant = side_ptr_get(type_desc->u.side_variant);
1357 const struct side_type *selector_type = &side_type_variant->selector;
1358 union int_value v;
1359 uint32_t i;
1360
1361 if (side_enum_get(selector_type->type) != side_enum_get(side_arg_variant->selector.type)) {
1362 fprintf(stderr, "ERROR: Unexpected variant selector type\n");
1363 abort();
1364 }
1365 switch (side_enum_get(selector_type->type)) {
1366 case SIDE_TYPE_U8:
1367 case SIDE_TYPE_U16:
1368 case SIDE_TYPE_U32:
1369 case SIDE_TYPE_U64:
1370 case SIDE_TYPE_U128:
1371 case SIDE_TYPE_S8:
1372 case SIDE_TYPE_S16:
1373 case SIDE_TYPE_S32:
1374 case SIDE_TYPE_S64:
1375 case SIDE_TYPE_S128:
1376 break;
1377 default:
1378 fprintf(stderr, "ERROR: Expecting integer variant selector type\n");
1379 abort();
1380 }
1381 v = tracer_load_integer_value(&selector_type->u.side_integer,
1382 &side_arg_variant->selector.u.side_static.integer_value, 0, NULL);
1383 side_check_value_u64(v);
1384 for (i = 0; i < side_type_variant->nr_options; i++) {
1385 const struct side_variant_option *option = &side_ptr_get(side_type_variant->options)[i];
1386
1387 if (v.s[SIDE_INTEGER128_SPLIT_LOW] >= option->range_begin && v.s[SIDE_INTEGER128_SPLIT_LOW] <= option->range_end) {
1388 tracer_print_type(&option->side_type, &side_arg_variant->option);
1389 return;
1390 }
1391 }
1392 fprintf(stderr, "ERROR: Variant selector value unknown %" PRId64 "\n", v.s[SIDE_INTEGER128_SPLIT_LOW]);
1393 abort();
1394 }
1395
1396 static
1397 void tracer_print_array(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec)
1398 {
1399 const struct side_arg *sav = side_ptr_get(side_arg_vec->sav);
1400 uint32_t i, side_sav_len = side_arg_vec->len;
1401
1402 if (type_desc->u.side_array.length != side_sav_len) {
1403 fprintf(stderr, "ERROR: length mismatch between description and arguments of array\n");
1404 abort();
1405 }
1406 print_attributes("attr", ":", side_ptr_get(type_desc->u.side_array.attr), type_desc->u.side_array.nr_attr);
1407 printf("%s", type_desc->u.side_array.nr_attr ? ", " : "");
1408 printf("elements: ");
1409 printf("[ ");
1410 for (i = 0; i < side_sav_len; i++) {
1411 printf("%s", i ? ", " : "");
1412 tracer_print_type(side_ptr_get(type_desc->u.side_array.elem_type), &sav[i]);
1413 }
1414 printf(" ]");
1415 }
1416
1417 static
1418 void tracer_print_vla(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec)
1419 {
1420 const struct side_arg *sav = side_ptr_get(side_arg_vec->sav);
1421 uint32_t i, side_sav_len = side_arg_vec->len;
1422
1423 print_attributes("attr", ":", side_ptr_get(type_desc->u.side_vla.attr), type_desc->u.side_vla.nr_attr);
1424 printf("%s", type_desc->u.side_vla.nr_attr ? ", " : "");
1425 printf("elements: ");
1426 printf("[ ");
1427 for (i = 0; i < side_sav_len; i++) {
1428 printf("%s", i ? ", " : "");
1429 tracer_print_type(side_ptr_get(type_desc->u.side_vla.elem_type), &sav[i]);
1430 }
1431 printf(" ]");
1432 }
1433
1434 static
1435 const char *tracer_gather_access(enum side_type_gather_access_mode access_mode, const char *ptr)
1436 {
1437 switch (access_mode) {
1438 case SIDE_TYPE_GATHER_ACCESS_DIRECT:
1439 return ptr;
1440 case SIDE_TYPE_GATHER_ACCESS_POINTER:
1441 /* Dereference pointer */
1442 memcpy(&ptr, ptr, sizeof(const char *));
1443 return ptr;
1444 default:
1445 abort();
1446 }
1447 }
1448
1449 static
1450 uint32_t tracer_gather_size(enum side_type_gather_access_mode access_mode, uint32_t len)
1451 {
1452 switch (access_mode) {
1453 case SIDE_TYPE_GATHER_ACCESS_DIRECT:
1454 return len;
1455 case SIDE_TYPE_GATHER_ACCESS_POINTER:
1456 return sizeof(void *);
1457 default:
1458 abort();
1459 }
1460 }
1461
1462 static
1463 union int_value tracer_load_gather_integer_value(const struct side_type_gather_integer *side_integer,
1464 const void *_ptr)
1465 {
1466 enum side_type_gather_access_mode access_mode =
1467 (enum side_type_gather_access_mode) side_integer->access_mode;
1468 uint32_t integer_size_bytes = side_integer->type.integer_size;
1469 const char *ptr = (const char *) _ptr;
1470 union side_integer_value value;
1471
1472 ptr = tracer_gather_access(access_mode, ptr + side_integer->offset);
1473 memcpy(&value, ptr, integer_size_bytes);
1474 return tracer_load_integer_value(&side_integer->type, &value,
1475 side_integer->offset_bits, NULL);
1476 }
1477
1478 static
1479 uint32_t tracer_print_gather_bool_type(const struct side_type_gather *type_gather, const void *_ptr)
1480 {
1481 enum side_type_gather_access_mode access_mode =
1482 (enum side_type_gather_access_mode) type_gather->u.side_bool.access_mode;
1483 uint32_t bool_size_bytes = type_gather->u.side_bool.type.bool_size;
1484 const char *ptr = (const char *) _ptr;
1485 union side_bool_value value;
1486
1487 switch (bool_size_bytes) {
1488 case 1:
1489 case 2:
1490 case 4:
1491 case 8:
1492 break;
1493 default:
1494 abort();
1495 }
1496 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_bool.offset);
1497 memcpy(&value, ptr, bool_size_bytes);
1498 tracer_print_type_bool(":", &type_gather->u.side_bool.type, &value,
1499 type_gather->u.side_bool.offset_bits);
1500 return tracer_gather_size(access_mode, bool_size_bytes);
1501 }
1502
1503 static
1504 uint32_t tracer_print_gather_byte_type(const struct side_type_gather *type_gather, const void *_ptr)
1505 {
1506 enum side_type_gather_access_mode access_mode =
1507 (enum side_type_gather_access_mode) type_gather->u.side_byte.access_mode;
1508 const char *ptr = (const char *) _ptr;
1509 uint8_t value;
1510
1511 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_byte.offset);
1512 memcpy(&value, ptr, 1);
1513 tracer_print_type_header(":", side_ptr_get(type_gather->u.side_byte.type.attr),
1514 type_gather->u.side_byte.type.nr_attr);
1515 printf("0x%" PRIx8, value);
1516 return tracer_gather_size(access_mode, 1);
1517 }
1518
1519 static
1520 uint32_t tracer_print_gather_integer_type(const struct side_type_gather *type_gather, const void *_ptr,
1521 enum tracer_display_base default_base)
1522 {
1523 enum side_type_gather_access_mode access_mode =
1524 (enum side_type_gather_access_mode) type_gather->u.side_integer.access_mode;
1525 uint32_t integer_size_bytes = type_gather->u.side_integer.type.integer_size;
1526 const char *ptr = (const char *) _ptr;
1527 union side_integer_value value;
1528
1529 switch (integer_size_bytes) {
1530 case 1:
1531 case 2:
1532 case 4:
1533 case 8:
1534 case 16:
1535 break;
1536 default:
1537 abort();
1538 }
1539 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_integer.offset);
1540 memcpy(&value, ptr, integer_size_bytes);
1541 tracer_print_type_integer(":", &type_gather->u.side_integer.type, &value,
1542 type_gather->u.side_integer.offset_bits, default_base);
1543 return tracer_gather_size(access_mode, integer_size_bytes);
1544 }
1545
1546 static
1547 uint32_t tracer_print_gather_float_type(const struct side_type_gather *type_gather, const void *_ptr)
1548 {
1549 enum side_type_gather_access_mode access_mode =
1550 (enum side_type_gather_access_mode) type_gather->u.side_float.access_mode;
1551 uint32_t float_size_bytes = type_gather->u.side_float.type.float_size;
1552 const char *ptr = (const char *) _ptr;
1553 union side_float_value value;
1554
1555 switch (float_size_bytes) {
1556 case 2:
1557 case 4:
1558 case 8:
1559 case 16:
1560 break;
1561 default:
1562 abort();
1563 }
1564 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_float.offset);
1565 memcpy(&value, ptr, float_size_bytes);
1566 tracer_print_type_float(":", &type_gather->u.side_float.type, &value);
1567 return tracer_gather_size(access_mode, float_size_bytes);
1568 }
1569
1570 static
1571 uint32_t tracer_print_gather_string_type(const struct side_type_gather *type_gather, const void *_ptr)
1572 {
1573 enum side_type_gather_access_mode access_mode =
1574 (enum side_type_gather_access_mode) type_gather->u.side_string.access_mode;
1575 const char *ptr = (const char *) _ptr;
1576 size_t string_len;
1577
1578 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_string.offset);
1579 tracer_print_type_header(":", side_ptr_get(type_gather->u.side_string.type.attr),
1580 type_gather->u.side_string.type.nr_attr);
1581 if (ptr) {
1582 tracer_print_string(ptr, type_gather->u.side_string.type.unit_size,
1583 side_enum_get(type_gather->u.side_string.type.byte_order), &string_len);
1584 } else {
1585 printf("<NULL>");
1586 string_len = type_gather->u.side_string.type.unit_size;
1587 }
1588 return tracer_gather_size(access_mode, string_len);
1589 }
1590
1591 static
1592 uint32_t tracer_print_gather_type(const struct side_type *type_desc, const void *ptr)
1593 {
1594 uint32_t len;
1595
1596 printf("{ ");
1597 switch (side_enum_get(type_desc->type)) {
1598 /* Gather basic types */
1599 case SIDE_TYPE_GATHER_BOOL:
1600 len = tracer_print_gather_bool_type(&type_desc->u.side_gather, ptr);
1601 break;
1602 case SIDE_TYPE_GATHER_INTEGER:
1603 len = tracer_print_gather_integer_type(&type_desc->u.side_gather, ptr,
1604 TRACER_DISPLAY_BASE_10);
1605 break;
1606 case SIDE_TYPE_GATHER_BYTE:
1607 len = tracer_print_gather_byte_type(&type_desc->u.side_gather, ptr);
1608 break;
1609 case SIDE_TYPE_GATHER_POINTER:
1610 len = tracer_print_gather_integer_type(&type_desc->u.side_gather, ptr,
1611 TRACER_DISPLAY_BASE_16);
1612 break;
1613 case SIDE_TYPE_GATHER_FLOAT:
1614 len = tracer_print_gather_float_type(&type_desc->u.side_gather, ptr);
1615 break;
1616 case SIDE_TYPE_GATHER_STRING:
1617 len = tracer_print_gather_string_type(&type_desc->u.side_gather, ptr);
1618 break;
1619
1620 /* Gather enum types */
1621 case SIDE_TYPE_GATHER_ENUM:
1622 len = tracer_print_gather_enum_type(&type_desc->u.side_gather, ptr);
1623 break;
1624
1625 /* Gather compound types */
1626 case SIDE_TYPE_GATHER_STRUCT:
1627 len = tracer_print_gather_struct(&type_desc->u.side_gather, ptr);
1628 break;
1629 case SIDE_TYPE_GATHER_ARRAY:
1630 len = tracer_print_gather_array(&type_desc->u.side_gather, ptr);
1631 break;
1632 case SIDE_TYPE_GATHER_VLA:
1633 len = tracer_print_gather_vla(&type_desc->u.side_gather, ptr, ptr);
1634 break;
1635 default:
1636 fprintf(stderr, "<UNKNOWN GATHER TYPE>");
1637 abort();
1638 }
1639 printf(" }");
1640 return len;
1641 }
1642
1643 static
1644 uint32_t tracer_print_gather_enum_type(const struct side_type_gather *type_gather, const void *_ptr)
1645 {
1646 const struct side_enum_mappings *mappings = side_ptr_get(type_gather->u.side_enum.mappings);
1647 const struct side_type *enum_elem_type = side_ptr_get(type_gather->u.side_enum.elem_type);
1648 const struct side_type_gather_integer *side_integer = &enum_elem_type->u.side_gather.u.side_integer;
1649 enum side_type_gather_access_mode access_mode =
1650 (enum side_type_gather_access_mode) side_integer->access_mode;
1651 uint32_t integer_size_bytes = side_integer->type.integer_size;
1652 const char *ptr = (const char *) _ptr;
1653 union side_integer_value value;
1654 union int_value v;
1655
1656 switch (integer_size_bytes) {
1657 case 1:
1658 case 2:
1659 case 4:
1660 case 8:
1661 case 16:
1662 break;
1663 default:
1664 abort();
1665 }
1666 ptr = tracer_gather_access(access_mode, ptr + side_integer->offset);
1667 memcpy(&value, ptr, integer_size_bytes);
1668 v = tracer_load_gather_integer_value(side_integer, &value);
1669 print_attributes("attr", ":", side_ptr_get(mappings->attr), mappings->nr_attr);
1670 printf("%s", mappings->nr_attr ? ", " : "");
1671 tracer_print_gather_type(enum_elem_type, ptr);
1672 print_enum_labels(mappings, v);
1673 return tracer_gather_size(access_mode, integer_size_bytes);
1674 }
1675
1676 static
1677 void tracer_print_gather_field(const struct side_event_field *field, const void *ptr)
1678 {
1679 printf("%s: ", side_ptr_get(field->field_name));
1680 (void) tracer_print_gather_type(&field->side_type, ptr);
1681 }
1682
1683 static
1684 uint32_t tracer_print_gather_struct(const struct side_type_gather *type_gather, const void *_ptr)
1685 {
1686 enum side_type_gather_access_mode access_mode =
1687 (enum side_type_gather_access_mode) type_gather->u.side_struct.access_mode;
1688 const struct side_type_struct *side_struct = side_ptr_get(type_gather->u.side_struct.type);
1689 const char *ptr = (const char *) _ptr;
1690 uint32_t i;
1691
1692 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_struct.offset);
1693 print_attributes("attr", ":", side_ptr_get(side_struct->attr), side_struct->nr_attr);
1694 printf("%s", side_struct->nr_attr ? ", " : "");
1695 printf("fields: { ");
1696 for (i = 0; i < side_struct->nr_fields; i++) {
1697 printf("%s", i ? ", " : "");
1698 tracer_print_gather_field(&side_ptr_get(side_struct->fields)[i], ptr);
1699 }
1700 printf(" }");
1701 return tracer_gather_size(access_mode, type_gather->u.side_struct.size);
1702 }
1703
1704 static
1705 uint32_t tracer_print_gather_array(const struct side_type_gather *type_gather, const void *_ptr)
1706 {
1707 enum side_type_gather_access_mode access_mode =
1708 (enum side_type_gather_access_mode) type_gather->u.side_array.access_mode;
1709 const char *ptr = (const char *) _ptr, *orig_ptr;
1710 uint32_t i;
1711
1712 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_array.offset);
1713 orig_ptr = ptr;
1714 print_attributes("attr", ":", side_ptr_get(type_gather->u.side_array.type.attr), type_gather->u.side_array.type.nr_attr);
1715 printf("%s", type_gather->u.side_array.type.nr_attr ? ", " : "");
1716 printf("elements: ");
1717 printf("[ ");
1718 for (i = 0; i < type_gather->u.side_array.type.length; i++) {
1719 const struct side_type *elem_type = side_ptr_get(type_gather->u.side_array.type.elem_type);
1720
1721 switch (side_enum_get(elem_type->type)) {
1722 case SIDE_TYPE_GATHER_VLA:
1723 fprintf(stderr, "<gather VLA only supported within gather structures>\n");
1724 abort();
1725 default:
1726 break;
1727 }
1728 printf("%s", i ? ", " : "");
1729 ptr += tracer_print_gather_type(elem_type, ptr);
1730 }
1731 printf(" ]");
1732 return tracer_gather_size(access_mode, ptr - orig_ptr);
1733 }
1734
1735 static
1736 uint32_t tracer_print_gather_vla(const struct side_type_gather *type_gather, const void *_ptr,
1737 const void *_length_ptr)
1738 {
1739 enum side_type_gather_access_mode access_mode =
1740 (enum side_type_gather_access_mode) type_gather->u.side_vla.access_mode;
1741 const struct side_type *length_type = side_ptr_get(type_gather->u.side_vla.length_type);
1742 const char *ptr = (const char *) _ptr, *orig_ptr;
1743 const char *length_ptr = (const char *) _length_ptr;
1744 union int_value v = {};
1745 uint32_t i, length;
1746
1747 /* Access length */
1748 switch (side_enum_get(length_type->type)) {
1749 case SIDE_TYPE_GATHER_INTEGER:
1750 break;
1751 default:
1752 fprintf(stderr, "<gather VLA expects integer gather length type>\n");
1753 abort();
1754 }
1755 v = tracer_load_gather_integer_value(&length_type->u.side_gather.u.side_integer,
1756 length_ptr);
1757 if (v.u[SIDE_INTEGER128_SPLIT_HIGH] || v.u[SIDE_INTEGER128_SPLIT_LOW] > UINT32_MAX) {
1758 fprintf(stderr, "Unexpected vla length value\n");
1759 abort();
1760 }
1761 length = (uint32_t) v.u[SIDE_INTEGER128_SPLIT_LOW];
1762 ptr = tracer_gather_access(access_mode, ptr + type_gather->u.side_vla.offset);
1763 orig_ptr = ptr;
1764 print_attributes("attr", ":", side_ptr_get(type_gather->u.side_vla.type.attr), type_gather->u.side_vla.type.nr_attr);
1765 printf("%s", type_gather->u.side_vla.type.nr_attr ? ", " : "");
1766 printf("elements: ");
1767 printf("[ ");
1768 for (i = 0; i < length; i++) {
1769 const struct side_type *elem_type = side_ptr_get(type_gather->u.side_vla.type.elem_type);
1770
1771 switch (side_enum_get(elem_type->type)) {
1772 case SIDE_TYPE_GATHER_VLA:
1773 fprintf(stderr, "<gather VLA only supported within gather structures>\n");
1774 abort();
1775 default:
1776 break;
1777 }
1778 printf("%s", i ? ", " : "");
1779 ptr += tracer_print_gather_type(elem_type, ptr);
1780 }
1781 printf(" ]");
1782 return tracer_gather_size(access_mode, ptr - orig_ptr);
1783 }
1784
1785 struct tracer_visitor_priv {
1786 const struct side_type *elem_type;
1787 int i;
1788 };
1789
1790 static
1791 enum side_visitor_status tracer_write_elem_cb(const struct side_tracer_visitor_ctx *tracer_ctx,
1792 const struct side_arg *elem)
1793 {
1794 struct tracer_visitor_priv *tracer_priv = (struct tracer_visitor_priv *) tracer_ctx->priv;
1795
1796 printf("%s", tracer_priv->i++ ? ", " : "");
1797 tracer_print_type(tracer_priv->elem_type, elem);
1798 return SIDE_VISITOR_STATUS_OK;
1799 }
1800
1801 static
1802 void tracer_print_vla_visitor(const struct side_type *type_desc, struct side_arg_vla_visitor *vla_visitor)
1803 {
1804 void *app_ctx;
1805 enum side_visitor_status status;
1806 struct tracer_visitor_priv tracer_priv = {
1807 .elem_type = side_ptr_get(type_desc->u.side_vla_visitor.elem_type),
1808 .i = 0,
1809 };
1810 const struct side_tracer_visitor_ctx tracer_ctx = {
1811 .write_elem = tracer_write_elem_cb,
1812 .priv = &tracer_priv,
1813 };
1814 side_visitor_func func;
1815
1816 if (!vla_visitor)
1817 abort();
1818 app_ctx = side_ptr_get(vla_visitor->app_ctx);
1819 print_attributes("attr", ":", side_ptr_get(type_desc->u.side_vla_visitor.attr), type_desc->u.side_vla_visitor.nr_attr);
1820 printf("%s", type_desc->u.side_vla_visitor.nr_attr ? ", " : "");
1821 printf("elements: ");
1822 printf("[ ");
1823 func = side_ptr_get(type_desc->u.side_vla_visitor.visitor);
1824 status = func(&tracer_ctx, app_ctx);
1825 switch (status) {
1826 case SIDE_VISITOR_STATUS_OK:
1827 break;
1828 case SIDE_VISITOR_STATUS_ERROR:
1829 fprintf(stderr, "ERROR: Visitor error\n");
1830 abort();
1831 }
1832 printf(" ]");
1833 }
1834
1835 static
1836 void tracer_print_dynamic_struct(const struct side_arg_dynamic_struct *dynamic_struct)
1837 {
1838 const struct side_arg_dynamic_field *fields = side_ptr_get(dynamic_struct->fields);
1839 uint32_t i, len = dynamic_struct->len;
1840
1841 print_attributes("attr", "::", side_ptr_get(dynamic_struct->attr), dynamic_struct->nr_attr);
1842 printf("%s", dynamic_struct->nr_attr ? ", " : "");
1843 printf("fields:: ");
1844 printf("[ ");
1845 for (i = 0; i < len; i++) {
1846 printf("%s", i ? ", " : "");
1847 printf("%s:: ", side_ptr_get(fields[i].field_name));
1848 tracer_print_dynamic(&fields[i].elem, true);
1849 }
1850 printf(" ]");
1851 }
1852
1853 struct tracer_dynamic_struct_visitor_priv {
1854 int i;
1855 };
1856
1857 static
1858 enum side_visitor_status tracer_dynamic_struct_write_elem_cb(
1859 const struct side_tracer_dynamic_struct_visitor_ctx *tracer_ctx,
1860 const struct side_arg_dynamic_field *dynamic_field)
1861 {
1862 struct tracer_dynamic_struct_visitor_priv *tracer_priv =
1863 (struct tracer_dynamic_struct_visitor_priv *) tracer_ctx->priv;
1864
1865 printf("%s", tracer_priv->i++ ? ", " : "");
1866 printf("%s:: ", side_ptr_get(dynamic_field->field_name));
1867 tracer_print_dynamic(&dynamic_field->elem, true);
1868 return SIDE_VISITOR_STATUS_OK;
1869 }
1870
1871 static
1872 void tracer_print_dynamic_struct_visitor(const struct side_arg *item)
1873 {
1874 struct side_arg_dynamic_struct_visitor *dynamic_struct_visitor;
1875 struct tracer_dynamic_struct_visitor_priv tracer_priv = {
1876 .i = 0,
1877 };
1878 const struct side_tracer_dynamic_struct_visitor_ctx tracer_ctx = {
1879 .write_field = tracer_dynamic_struct_write_elem_cb,
1880 .priv = &tracer_priv,
1881 };
1882 enum side_visitor_status status;
1883 void *app_ctx;
1884
1885 dynamic_struct_visitor = side_ptr_get(item->u.side_dynamic.side_dynamic_struct_visitor);
1886 if (!dynamic_struct_visitor)
1887 abort();
1888 app_ctx = side_ptr_get(dynamic_struct_visitor->app_ctx);
1889 print_attributes("attr", "::", side_ptr_get(dynamic_struct_visitor->attr), dynamic_struct_visitor->nr_attr);
1890 printf("%s", dynamic_struct_visitor->nr_attr ? ", " : "");
1891 printf("fields:: ");
1892 printf("[ ");
1893 status = side_ptr_get(dynamic_struct_visitor->visitor)(&tracer_ctx, app_ctx);
1894 switch (status) {
1895 case SIDE_VISITOR_STATUS_OK:
1896 break;
1897 case SIDE_VISITOR_STATUS_ERROR:
1898 fprintf(stderr, "ERROR: Visitor error\n");
1899 abort();
1900 }
1901 printf(" ]");
1902 }
1903
1904 static
1905 void tracer_print_dynamic_vla(const struct side_arg_dynamic_vla *vla)
1906 {
1907 const struct side_arg *sav = side_ptr_get(vla->sav);
1908 uint32_t i, side_sav_len = vla->len;
1909
1910 print_attributes("attr", "::", side_ptr_get(vla->attr), vla->nr_attr);
1911 printf("%s", vla->nr_attr ? ", " : "");
1912 printf("elements:: ");
1913 printf("[ ");
1914 for (i = 0; i < side_sav_len; i++) {
1915 printf("%s", i ? ", " : "");
1916 tracer_print_dynamic(&sav[i], true);
1917 }
1918 printf(" ]");
1919 }
1920
1921 struct tracer_dynamic_vla_visitor_priv {
1922 int i;
1923 };
1924
1925 static
1926 enum side_visitor_status tracer_dynamic_vla_write_elem_cb(
1927 const struct side_tracer_visitor_ctx *tracer_ctx,
1928 const struct side_arg *elem)
1929 {
1930 struct tracer_dynamic_vla_visitor_priv *tracer_priv =
1931 (struct tracer_dynamic_vla_visitor_priv *) tracer_ctx->priv;
1932
1933 printf("%s", tracer_priv->i++ ? ", " : "");
1934 tracer_print_dynamic(elem, true);
1935 return SIDE_VISITOR_STATUS_OK;
1936 }
1937
1938 static
1939 void tracer_print_dynamic_vla_visitor(const struct side_arg *item)
1940 {
1941 struct side_arg_dynamic_vla_visitor *dynamic_vla_visitor;
1942 struct tracer_dynamic_vla_visitor_priv tracer_priv = {
1943 .i = 0,
1944 };
1945 const struct side_tracer_visitor_ctx tracer_ctx = {
1946 .write_elem = tracer_dynamic_vla_write_elem_cb,
1947 .priv = &tracer_priv,
1948 };
1949 enum side_visitor_status status;
1950 void *app_ctx;
1951
1952 dynamic_vla_visitor = side_ptr_get(item->u.side_dynamic.side_dynamic_vla_visitor);
1953 if (!dynamic_vla_visitor)
1954 abort();
1955 app_ctx = side_ptr_get(dynamic_vla_visitor->app_ctx);
1956 print_attributes("attr", "::", side_ptr_get(dynamic_vla_visitor->attr), dynamic_vla_visitor->nr_attr);
1957 printf("%s", dynamic_vla_visitor->nr_attr ? ", " : "");
1958 printf("elements:: ");
1959 printf("[ ");
1960 status = side_ptr_get(dynamic_vla_visitor->visitor)(&tracer_ctx, app_ctx);
1961 switch (status) {
1962 case SIDE_VISITOR_STATUS_OK:
1963 break;
1964 case SIDE_VISITOR_STATUS_ERROR:
1965 fprintf(stderr, "ERROR: Visitor error\n");
1966 abort();
1967 }
1968 printf(" ]");
1969 }
1970
1971 static
1972 void tracer_print_dynamic(const struct side_arg *item, bool print_brackets)
1973 {
1974 if (print_brackets)
1975 printf("{ ");
1976 switch (side_enum_get(item->type)) {
1977 /* Dynamic basic types */
1978 case SIDE_TYPE_DYNAMIC_NULL:
1979 tracer_print_type_header("::", side_ptr_get(item->u.side_dynamic.side_null.attr),
1980 item->u.side_dynamic.side_null.nr_attr);
1981 printf("<NULL TYPE>");
1982 break;
1983 case SIDE_TYPE_DYNAMIC_BOOL:
1984 tracer_print_type_bool("::", &item->u.side_dynamic.side_bool.type, &item->u.side_dynamic.side_bool.value, 0);
1985 break;
1986 case SIDE_TYPE_DYNAMIC_INTEGER:
1987 tracer_print_type_integer("::", &item->u.side_dynamic.side_integer.type, &item->u.side_dynamic.side_integer.value, 0,
1988 TRACER_DISPLAY_BASE_10);
1989 break;
1990 case SIDE_TYPE_DYNAMIC_BYTE:
1991 tracer_print_type_header("::", side_ptr_get(item->u.side_dynamic.side_byte.type.attr), item->u.side_dynamic.side_byte.type.nr_attr);
1992 printf("0x%" PRIx8, item->u.side_dynamic.side_byte.value);
1993 break;
1994 case SIDE_TYPE_DYNAMIC_POINTER:
1995 tracer_print_type_integer("::", &item->u.side_dynamic.side_integer.type, &item->u.side_dynamic.side_integer.value, 0,
1996 TRACER_DISPLAY_BASE_16);
1997 break;
1998 case SIDE_TYPE_DYNAMIC_FLOAT:
1999 tracer_print_type_float("::", &item->u.side_dynamic.side_float.type,
2000 &item->u.side_dynamic.side_float.value);
2001 break;
2002 case SIDE_TYPE_DYNAMIC_STRING:
2003 tracer_print_type_header("::", side_ptr_get(item->u.side_dynamic.side_string.type.attr), item->u.side_dynamic.side_string.type.nr_attr);
2004 tracer_print_string((const char *)(uintptr_t) item->u.side_dynamic.side_string.value,
2005 item->u.side_dynamic.side_string.type.unit_size,
2006 side_enum_get(item->u.side_dynamic.side_string.type.byte_order), NULL);
2007 break;
2008
2009 /* Dynamic compound types */
2010 case SIDE_TYPE_DYNAMIC_STRUCT:
2011 tracer_print_dynamic_struct(side_ptr_get(item->u.side_dynamic.side_dynamic_struct));
2012 break;
2013 case SIDE_TYPE_DYNAMIC_STRUCT_VISITOR:
2014 tracer_print_dynamic_struct_visitor(item);
2015 break;
2016 case SIDE_TYPE_DYNAMIC_VLA:
2017 tracer_print_dynamic_vla(side_ptr_get(item->u.side_dynamic.side_dynamic_vla));
2018 break;
2019 case SIDE_TYPE_DYNAMIC_VLA_VISITOR:
2020 tracer_print_dynamic_vla_visitor(item);
2021 break;
2022 default:
2023 fprintf(stderr, "<UNKNOWN TYPE>\n");
2024 abort();
2025 }
2026 if (print_brackets)
2027 printf(" }");
2028 }
2029
2030 static
2031 void tracer_print_static_fields(const struct side_event_description *desc,
2032 const struct side_arg_vec *side_arg_vec,
2033 uint32_t *nr_items, void *caller_addr)
2034 {
2035 const struct side_arg *sav = side_ptr_get(side_arg_vec->sav);
2036 uint32_t i, side_sav_len = side_arg_vec->len;
2037
2038 if (print_caller)
2039 printf("caller: [%p] ", caller_addr);
2040 printf("provider: %s, event: %s",
2041 side_ptr_get(desc->provider_name),
2042 side_ptr_get(desc->event_name));
2043 if (desc->nr_fields != side_sav_len) {
2044 fprintf(stderr, "ERROR: number of fields mismatch between description and arguments\n");
2045 abort();
2046 }
2047 print_attributes(", attr", ":", side_ptr_get(desc->attr), desc->nr_attr);
2048 printf("%s", side_sav_len ? ", fields: [ " : "");
2049 for (i = 0; i < side_sav_len; i++) {
2050 printf("%s", i ? ", " : "");
2051 tracer_print_field(&side_ptr_get(desc->fields)[i], &sav[i]);
2052 }
2053 if (nr_items)
2054 *nr_items = i;
2055 if (side_sav_len)
2056 printf(" ]");
2057 }
2058
2059 static
2060 void tracer_call(const struct side_event_description *desc,
2061 const struct side_arg_vec *side_arg_vec,
2062 void *priv __attribute__((unused)),
2063 void *caller_addr)
2064 {
2065 uint32_t nr_fields = 0;
2066
2067 tracer_print_static_fields(desc, side_arg_vec, &nr_fields, caller_addr);
2068 printf("\n");
2069 }
2070
2071 static
2072 void tracer_call_variadic(const struct side_event_description *desc,
2073 const struct side_arg_vec *side_arg_vec,
2074 const struct side_arg_dynamic_struct *var_struct,
2075 void *priv __attribute__((unused)),
2076 void *caller_addr)
2077 {
2078 uint32_t nr_fields = 0, i, var_struct_len = var_struct->len;
2079
2080 tracer_print_static_fields(desc, side_arg_vec, &nr_fields, caller_addr);
2081
2082 if (side_unlikely(!(desc->flags & SIDE_EVENT_FLAG_VARIADIC))) {
2083 fprintf(stderr, "ERROR: unexpected non-variadic event description\n");
2084 abort();
2085 }
2086 print_attributes(", attr ", "::", side_ptr_get(var_struct->attr), var_struct->nr_attr);
2087 printf("%s", var_struct_len ? ", fields:: [ " : "");
2088 for (i = 0; i < var_struct_len; i++, nr_fields++) {
2089 printf("%s", i ? ", " : "");
2090 printf("%s:: ", side_ptr_get(side_ptr_get(var_struct->fields)[i].field_name));
2091 tracer_print_dynamic(&side_ptr_get(var_struct->fields)[i].elem, true);
2092 }
2093 if (i)
2094 printf(" ]");
2095 printf("\n");
2096 }
2097
2098 static
2099 void tracer_event_notification(enum side_tracer_notification notif,
2100 struct side_event_description **events, uint32_t nr_events,
2101 void *priv __attribute__((unused)))
2102 {
2103 uint32_t i;
2104 int ret;
2105
2106 printf("----------------------------------------------------------\n");
2107 printf("Tracer notified of events %s\n",
2108 notif == SIDE_TRACER_NOTIFICATION_INSERT_EVENTS ? "inserted" : "removed");
2109 for (i = 0; i < nr_events; i++) {
2110 struct side_event_description *event = events[i];
2111
2112 /* Skip NULL pointers */
2113 if (!event)
2114 continue;
2115 if (event->version != SIDE_EVENT_DESCRIPTION_ABI_VERSION) {
2116 printf("Error: event description ABI version (%u) does not match the version supported by the tracer (%u)\n",
2117 event->version, SIDE_EVENT_DESCRIPTION_ABI_VERSION);
2118 return;
2119 }
2120 printf("provider: %s, event: %s\n",
2121 side_ptr_get(event->provider_name), side_ptr_get(event->event_name));
2122 if (event->struct_size != side_offsetofend(struct side_event_description, side_event_description_orig_abi_last)) {
2123 printf("Warning: Event %s.%s description contains fields unknown to the tracer\n",
2124 side_ptr_get(event->provider_name), side_ptr_get(event->event_name));
2125 }
2126 if (notif == SIDE_TRACER_NOTIFICATION_INSERT_EVENTS) {
2127 if (event->nr_side_type_label > _NR_SIDE_TYPE_LABEL) {
2128 printf("Warning: event %s:%s may contain unknown field types (%u unknown types)\n",
2129 side_ptr_get(event->provider_name), side_ptr_get(event->event_name),
2130 event->nr_side_type_label - _NR_SIDE_TYPE_LABEL);
2131 }
2132 if (event->nr_side_attr_type > _NR_SIDE_ATTR_TYPE) {
2133 printf("Warning: event %s:%s may contain unknown attribute types (%u unknown types)\n",
2134 side_ptr_get(event->provider_name), side_ptr_get(event->event_name),
2135 event->nr_side_attr_type - _NR_SIDE_ATTR_TYPE);
2136 }
2137 if (event->flags & SIDE_EVENT_FLAG_VARIADIC) {
2138 ret = side_tracer_callback_variadic_register(event, tracer_call_variadic, NULL, tracer_key);
2139 if (ret)
2140 abort();
2141 } else {
2142 ret = side_tracer_callback_register(event, tracer_call, NULL, tracer_key);
2143 if (ret)
2144 abort();
2145 }
2146 } else {
2147 if (event->flags & SIDE_EVENT_FLAG_VARIADIC) {
2148 ret = side_tracer_callback_variadic_unregister(event, tracer_call_variadic, NULL, tracer_key);
2149 if (ret)
2150 abort();
2151 } else {
2152 ret = side_tracer_callback_unregister(event, tracer_call, NULL, tracer_key);
2153 if (ret)
2154 abort();
2155 }
2156 }
2157 }
2158 printf("----------------------------------------------------------\n");
2159 }
2160
2161 static __attribute__((constructor))
2162 void tracer_init(void);
2163 static
2164 void tracer_init(void)
2165 {
2166 if (side_tracer_request_key(&tracer_key))
2167 abort();
2168 tracer_handle = side_tracer_event_notification_register(tracer_event_notification, NULL);
2169 if (!tracer_handle)
2170 abort();
2171 }
2172
2173 static __attribute__((destructor))
2174 void tracer_exit(void);
2175 static
2176 void tracer_exit(void)
2177 {
2178 side_tracer_event_notification_unregister(tracer_handle);
2179 }
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