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Do not check `NULL` to call g_free(): g_free() accepts `NULL`
[babeltrace.git] / src / plugins / ctf / common / metadata / visitor-generate-ir.c
1 /*
2 * ctf-visitor-generate-ir.c
3 *
4 * Common Trace Format metadata visitor (generates CTF IR objects).
5 *
6 * Based on older ctf-visitor-generate-io-struct.c.
7 *
8 * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 * Copyright 2015-2018 - Philippe Proulx <philippe.proulx@efficios.com>
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a copy
12 * of this software and associated documentation files (the "Software"), to deal
13 * in the Software without restriction, including without limitation the rights
14 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
15 * copies of the Software, and to permit persons to whom the Software is
16 * furnished to do so, subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice shall be included in
19 * all copies or substantial portions of the Software.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
24 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
26 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 * SOFTWARE.
28 */
29
30 #define BT_COMP_LOG_SELF_COMP (ctx->log_cfg.self_comp)
31 #define BT_LOG_OUTPUT_LEVEL (ctx->log_cfg.log_level)
32 #define BT_LOG_TAG "PLUGIN/CTF/META/IR-VISITOR"
33 #include "plugins/comp-logging.h"
34
35 #include <stdio.h>
36 #include <unistd.h>
37 #include <string.h>
38 #include <stdbool.h>
39 #include <stdlib.h>
40 #include <ctype.h>
41 #include "common/assert.h"
42 #include <glib.h>
43 #include <inttypes.h>
44 #include <errno.h>
45 #include "common/common.h"
46 #include "common/uuid.h"
47 #include "compat/endian.h"
48 #include <babeltrace2/babeltrace.h>
49
50 #include "logging.h"
51 #include "scanner.h"
52 #include "parser.h"
53 #include "ast.h"
54 #include "decoder.h"
55 #include "ctf-meta.h"
56 #include "ctf-meta-visitors.h"
57
58 /* Bit value (left shift) */
59 #define _BV(_val) (1 << (_val))
60
61 /* Bit is set in a set of bits */
62 #define _IS_SET(_set, _mask) (*(_set) & (_mask))
63
64 /* Set bit in a set of bits */
65 #define _SET(_set, _mask) (*(_set) |= (_mask))
66
67 /* Try to push scope, or go to the `error` label */
68 #define _TRY_PUSH_SCOPE_OR_GOTO_ERROR() \
69 do { \
70 ret = ctx_push_scope(ctx); \
71 if (ret) { \
72 BT_COMP_LOGE_STR("Cannot push scope."); \
73 goto error; \
74 } \
75 } while (0)
76
77 /* Bits for verifying existing attributes in various declarations */
78 enum {
79 _CLOCK_NAME_SET = _BV(0),
80 _CLOCK_UUID_SET = _BV(1),
81 _CLOCK_FREQ_SET = _BV(2),
82 _CLOCK_PRECISION_SET = _BV(3),
83 _CLOCK_OFFSET_S_SET = _BV(4),
84 _CLOCK_OFFSET_SET = _BV(5),
85 _CLOCK_ABSOLUTE_SET = _BV(6),
86 _CLOCK_DESCRIPTION_SET = _BV(7),
87 };
88
89 enum {
90 _INTEGER_ALIGN_SET = _BV(0),
91 _INTEGER_SIZE_SET = _BV(1),
92 _INTEGER_BASE_SET = _BV(2),
93 _INTEGER_ENCODING_SET = _BV(3),
94 _INTEGER_BYTE_ORDER_SET = _BV(4),
95 _INTEGER_SIGNED_SET = _BV(5),
96 _INTEGER_MAP_SET = _BV(6),
97 };
98
99 enum {
100 _FLOAT_ALIGN_SET = _BV(0),
101 _FLOAT_MANT_DIG_SET = _BV(1),
102 _FLOAT_EXP_DIG_SET = _BV(2),
103 _FLOAT_BYTE_ORDER_SET = _BV(3),
104 };
105
106 enum {
107 _STRING_ENCODING_SET = _BV(0),
108 };
109
110 enum {
111 _TRACE_MINOR_SET = _BV(0),
112 _TRACE_MAJOR_SET = _BV(1),
113 _TRACE_BYTE_ORDER_SET = _BV(2),
114 _TRACE_UUID_SET = _BV(3),
115 _TRACE_PACKET_HEADER_SET = _BV(4),
116 };
117
118 enum {
119 _STREAM_ID_SET = _BV(0),
120 _STREAM_PACKET_CONTEXT_SET = _BV(1),
121 _STREAM_EVENT_HEADER_SET = _BV(2),
122 _STREAM_EVENT_CONTEXT_SET = _BV(3),
123 };
124
125 enum {
126 _EVENT_NAME_SET = _BV(0),
127 _EVENT_ID_SET = _BV(1),
128 _EVENT_MODEL_EMF_URI_SET = _BV(2),
129 _EVENT_STREAM_ID_SET = _BV(3),
130 _EVENT_LOG_LEVEL_SET = _BV(4),
131 _EVENT_CONTEXT_SET = _BV(5),
132 _EVENT_FIELDS_SET = _BV(6),
133 };
134
135 enum loglevel {
136 LOG_LEVEL_EMERG = 0,
137 LOG_LEVEL_ALERT = 1,
138 LOG_LEVEL_CRIT = 2,
139 LOG_LEVEL_ERR = 3,
140 LOG_LEVEL_WARNING = 4,
141 LOG_LEVEL_NOTICE = 5,
142 LOG_LEVEL_INFO = 6,
143 LOG_LEVEL_DEBUG_SYSTEM = 7,
144 LOG_LEVEL_DEBUG_PROGRAM = 8,
145 LOG_LEVEL_DEBUG_PROCESS = 9,
146 LOG_LEVEL_DEBUG_MODULE = 10,
147 LOG_LEVEL_DEBUG_UNIT = 11,
148 LOG_LEVEL_DEBUG_FUNCTION = 12,
149 LOG_LEVEL_DEBUG_LINE = 13,
150 LOG_LEVEL_DEBUG = 14,
151 _NR_LOGLEVELS = 15,
152 };
153
154 /* Prefixes of class aliases */
155 #define _PREFIX_ALIAS 'a'
156 #define _PREFIX_ENUM 'e'
157 #define _PREFIX_STRUCT 's'
158 #define _PREFIX_VARIANT 'v'
159
160 /* First entry in a BT list */
161 #define _BT_LIST_FIRST_ENTRY(_ptr, _class, _member) \
162 bt_list_entry((_ptr)->next, _class, _member)
163
164 #define _BT_COMP_LOGE_DUP_ATTR(_node, _attr, _entity) \
165 _BT_COMP_LOGE_LINENO((_node)->lineno, \
166 "Duplicate attribute in %s: attr-name=\"%s\"", \
167 _entity, _attr)
168
169 #define _BT_COMP_LOGE_NODE(_node, _msg, args...) \
170 _BT_COMP_LOGE_LINENO((_node)->lineno, _msg, ## args)
171
172 #define _BT_COMP_LOGW_NODE(_node, _msg, args...) \
173 _BT_COMP_LOGW_LINENO((_node)->lineno, _msg, ## args)
174
175 #define _BT_COMP_LOGT_NODE(_node, _msg, args...) \
176 _BT_COMP_LOGT_LINENO((_node)->lineno, _msg, ## args)
177
178 /*
179 * Declaration scope of a visitor context. This represents a TSDL
180 * lexical scope, so that aliases and named structures, variants,
181 * and enumerations may be registered and looked up hierarchically.
182 */
183 struct ctx_decl_scope {
184 /*
185 * Alias name to field class.
186 *
187 * GQuark -> struct ctf_field_class * (owned by this)
188 */
189 GHashTable *decl_map;
190
191 /* Parent scope; NULL if this is the root declaration scope */
192 struct ctx_decl_scope *parent_scope;
193 };
194
195 /*
196 * Visitor context (private).
197 */
198 struct ctx {
199 struct meta_log_config log_cfg;
200
201 /* Trace IR trace class being filled (owned by this) */
202 bt_trace_class *trace_class;
203
204 /* CTF meta trace being filled (owned by this) */
205 struct ctf_trace_class *ctf_tc;
206
207 /* Current declaration scope (top of the stack) (owned by this) */
208 struct ctx_decl_scope *current_scope;
209
210 /* True if trace declaration is visited */
211 bool is_trace_visited;
212
213 /* True if this is an LTTng trace */
214 bool is_lttng;
215
216 /* Config passed by the user */
217 struct ctf_metadata_decoder_config decoder_config;
218 };
219
220 /*
221 * Visitor (public).
222 */
223 struct ctf_visitor_generate_ir;
224
225 /**
226 * Creates a new declaration scope.
227 *
228 * @param par_scope Parent scope (NULL if creating a root scope)
229 * @returns New declaration scope, or NULL on error
230 */
231 static
232 struct ctx_decl_scope *ctx_decl_scope_create(struct ctx *ctx,
233 struct ctx_decl_scope *par_scope)
234 {
235 struct ctx_decl_scope *scope;
236
237 scope = g_new(struct ctx_decl_scope, 1);
238 if (!scope) {
239 BT_COMP_LOGE_STR("Failed to allocate one declaration scope.");
240 goto end;
241 }
242
243 scope->decl_map = g_hash_table_new_full(g_direct_hash, g_direct_equal,
244 NULL, (GDestroyNotify) ctf_field_class_destroy);
245 scope->parent_scope = par_scope;
246
247 end:
248 return scope;
249 }
250
251 /**
252 * Destroys a declaration scope.
253 *
254 * This function does not destroy the parent scope.
255 *
256 * @param scope Scope to destroy
257 */
258 static
259 void ctx_decl_scope_destroy(struct ctx_decl_scope *scope)
260 {
261 if (!scope) {
262 goto end;
263 }
264
265 g_hash_table_destroy(scope->decl_map);
266 g_free(scope);
267
268 end:
269 return;
270 }
271
272 /**
273 * Returns the GQuark of a prefixed alias.
274 *
275 * @param prefix Prefix character
276 * @param name Name
277 * @returns Associated GQuark, or 0 on error
278 */
279 static
280 GQuark get_prefixed_named_quark(struct ctx *ctx, char prefix, const char *name)
281 {
282 GQuark qname = 0;
283
284 BT_ASSERT(name);
285
286 /* Prefix character + original string + '\0' */
287 char *prname = g_new(char, strlen(name) + 2);
288 if (!prname) {
289 BT_COMP_LOGE_STR("Failed to allocate a string.");
290 goto end;
291 }
292
293 sprintf(prname, "%c%s", prefix, name);
294 qname = g_quark_from_string(prname);
295 g_free(prname);
296
297 end:
298 return qname;
299 }
300
301 /**
302 * Looks up a prefixed class alias within a declaration scope.
303 *
304 * @param scope Declaration scope
305 * @param prefix Prefix character
306 * @param name Alias name
307 * @param levels Number of levels to dig into (-1 means infinite)
308 * @param copy True to return a copy
309 * @returns Declaration (owned by caller if \p copy is true),
310 * or NULL if not found
311 */
312 static
313 struct ctf_field_class *ctx_decl_scope_lookup_prefix_alias(
314 struct ctx *ctx, struct ctx_decl_scope *scope, char prefix,
315 const char *name, int levels, bool copy)
316 {
317 GQuark qname = 0;
318 int cur_levels = 0;
319 struct ctf_field_class *decl = NULL;
320 struct ctx_decl_scope *cur_scope = scope;
321
322 BT_ASSERT(scope);
323 BT_ASSERT(name);
324 qname = get_prefixed_named_quark(ctx, prefix, name);
325 if (!qname) {
326 goto end;
327 }
328
329 if (levels < 0) {
330 levels = INT_MAX;
331 }
332
333 while (cur_scope && cur_levels < levels) {
334 decl = g_hash_table_lookup(cur_scope->decl_map,
335 (gconstpointer) GUINT_TO_POINTER(qname));
336 if (decl) {
337 /* Caller's reference */
338 if (copy) {
339 decl = ctf_field_class_copy(decl);
340 BT_ASSERT(decl);
341 }
342
343 goto end;
344 }
345
346 cur_scope = cur_scope->parent_scope;
347 cur_levels++;
348 }
349
350 end:
351 return decl;
352 }
353
354 /**
355 * Looks up a class alias within a declaration scope.
356 *
357 * @param scope Declaration scope
358 * @param name Alias name
359 * @param levels Number of levels to dig into (-1 means infinite)
360 * @param copy True to return a copy
361 * @returns Declaration (owned by caller if \p copy is true),
362 * or NULL if not found
363 */
364 static
365 struct ctf_field_class *ctx_decl_scope_lookup_alias(struct ctx *ctx,
366 struct ctx_decl_scope *scope, const char *name, int levels,
367 bool copy)
368 {
369 return ctx_decl_scope_lookup_prefix_alias(ctx, scope, _PREFIX_ALIAS,
370 name, levels, copy);
371 }
372
373 /**
374 * Looks up an enumeration within a declaration scope.
375 *
376 * @param scope Declaration scope
377 * @param name Enumeration name
378 * @param levels Number of levels to dig into (-1 means infinite)
379 * @param copy True to return a copy
380 * @returns Declaration (owned by caller if \p copy is true),
381 * or NULL if not found
382 */
383 static
384 struct ctf_field_class_enum *ctx_decl_scope_lookup_enum(struct ctx *ctx,
385 struct ctx_decl_scope *scope, const char *name, int levels,
386 bool copy)
387 {
388 return (void *) ctx_decl_scope_lookup_prefix_alias(ctx, scope,
389 _PREFIX_ENUM, name, levels, copy);
390 }
391
392 /**
393 * Looks up a structure within a declaration scope.
394 *
395 * @param scope Declaration scope
396 * @param name Structure name
397 * @param levels Number of levels to dig into (-1 means infinite)
398 * @param copy True to return a copy
399 * @returns Declaration (owned by caller if \p copy is true),
400 * or NULL if not found
401 */
402 static
403 struct ctf_field_class_struct *ctx_decl_scope_lookup_struct(struct ctx *ctx,
404 struct ctx_decl_scope *scope, const char *name, int levels,
405 bool copy)
406 {
407 return (void *) ctx_decl_scope_lookup_prefix_alias(ctx, scope,
408 _PREFIX_STRUCT, name, levels, copy);
409 }
410
411 /**
412 * Looks up a variant within a declaration scope.
413 *
414 * @param scope Declaration scope
415 * @param name Variant name
416 * @param levels Number of levels to dig into (-1 means infinite)
417 * @param copy True to return a copy
418 * @returns Declaration (owned by caller if \p copy is true),
419 * or NULL if not found
420 */
421 static
422 struct ctf_field_class_variant *ctx_decl_scope_lookup_variant(struct ctx *ctx,
423 struct ctx_decl_scope *scope, const char *name, int levels,
424 bool copy)
425 {
426 return (void *) ctx_decl_scope_lookup_prefix_alias(ctx, scope,
427 _PREFIX_VARIANT, name, levels, copy);
428 }
429
430 /**
431 * Registers a prefixed class alias within a declaration scope.
432 *
433 * @param scope Declaration scope
434 * @param prefix Prefix character
435 * @param name Alias name (non-NULL)
436 * @param decl Field class to register (copied)
437 * @returns 0 if registration went okay, negative value otherwise
438 */
439 static
440 int ctx_decl_scope_register_prefix_alias(struct ctx *ctx,
441 struct ctx_decl_scope *scope, char prefix, const char *name,
442 struct ctf_field_class *decl)
443 {
444 int ret = 0;
445 GQuark qname = 0;
446
447 BT_ASSERT(scope);
448 BT_ASSERT(name);
449 BT_ASSERT(decl);
450 qname = get_prefixed_named_quark(ctx, prefix, name);
451 if (!qname) {
452 ret = -ENOMEM;
453 goto end;
454 }
455
456 /* Make sure alias does not exist in local scope */
457 if (ctx_decl_scope_lookup_prefix_alias(ctx, scope, prefix, name, 1,
458 false)) {
459 ret = -EEXIST;
460 goto end;
461 }
462
463 decl = ctf_field_class_copy(decl);
464 BT_ASSERT(decl);
465 g_hash_table_insert(scope->decl_map, GUINT_TO_POINTER(qname), decl);
466
467 end:
468 return ret;
469 }
470
471 /**
472 * Registers a class alias within a declaration scope.
473 *
474 * @param scope Declaration scope
475 * @param name Alias name (non-NULL)
476 * @param decl Field class to register (copied)
477 * @returns 0 if registration went okay, negative value otherwise
478 */
479 static
480 int ctx_decl_scope_register_alias(struct ctx *ctx, struct ctx_decl_scope *scope,
481 const char *name, struct ctf_field_class *decl)
482 {
483 return ctx_decl_scope_register_prefix_alias(ctx, scope, _PREFIX_ALIAS,
484 name, (void *) decl);
485 }
486
487 /**
488 * Registers an enumeration declaration within a declaration scope.
489 *
490 * @param scope Declaration scope
491 * @param name Enumeration name (non-NULL)
492 * @param decl Enumeration field class to register (copied)
493 * @returns 0 if registration went okay, negative value otherwise
494 */
495 static
496 int ctx_decl_scope_register_enum(struct ctx *ctx, struct ctx_decl_scope *scope,
497 const char *name, struct ctf_field_class_enum *decl)
498 {
499 return ctx_decl_scope_register_prefix_alias(ctx, scope, _PREFIX_ENUM,
500 name, (void *) decl);
501 }
502
503 /**
504 * Registers a structure declaration within a declaration scope.
505 *
506 * @param scope Declaration scope
507 * @param name Structure name (non-NULL)
508 * @param decl Structure field class to register (copied)
509 * @returns 0 if registration went okay, negative value otherwise
510 */
511 static
512 int ctx_decl_scope_register_struct(struct ctx *ctx,
513 struct ctx_decl_scope *scope, const char *name,
514 struct ctf_field_class_struct *decl)
515 {
516 return ctx_decl_scope_register_prefix_alias(ctx, scope, _PREFIX_STRUCT,
517 name, (void *) decl);
518 }
519
520 /**
521 * Registers a variant declaration within a declaration scope.
522 *
523 * @param scope Declaration scope
524 * @param name Variant name (non-NULL)
525 * @param decl Variant field class to register
526 * @returns 0 if registration went okay, negative value otherwise
527 */
528 static
529 int ctx_decl_scope_register_variant(struct ctx *ctx,
530 struct ctx_decl_scope *scope, const char *name,
531 struct ctf_field_class_variant *decl)
532 {
533 return ctx_decl_scope_register_prefix_alias(ctx, scope, _PREFIX_VARIANT,
534 name, (void *) decl);
535 }
536
537 /**
538 * Destroys a visitor context.
539 *
540 * @param ctx Visitor context to destroy
541 */
542 static
543 void ctx_destroy(struct ctx *ctx)
544 {
545 struct ctx_decl_scope *scope;
546
547 if (!ctx) {
548 goto end;
549 }
550
551 scope = ctx->current_scope;
552
553 /*
554 * Destroy all scopes, from current one to the root scope.
555 */
556 while (scope) {
557 struct ctx_decl_scope *parent_scope = scope->parent_scope;
558
559 ctx_decl_scope_destroy(scope);
560 scope = parent_scope;
561 }
562
563 bt_trace_class_put_ref(ctx->trace_class);
564
565 if (ctx->ctf_tc) {
566 ctf_trace_class_destroy(ctx->ctf_tc);
567 }
568
569 g_free(ctx);
570
571 end:
572 return;
573 }
574
575 /**
576 * Creates a new visitor context.
577 *
578 * @param trace Associated trace
579 * @returns New visitor context, or NULL on error
580 */
581 static
582 struct ctx *ctx_create(const struct ctf_metadata_decoder_config *decoder_config)
583 {
584 struct ctx *ctx = NULL;
585
586 BT_ASSERT(decoder_config);
587
588 ctx = g_new0(struct ctx, 1);
589 if (!ctx) {
590 BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, decoder_config->log_level,
591 decoder_config->self_comp,
592 "Failed to allocate one visitor context.");
593 goto error;
594 }
595
596 ctx->log_cfg.log_level = decoder_config->log_level;
597 ctx->log_cfg.self_comp = decoder_config->self_comp;
598
599 if (decoder_config->self_comp) {
600 ctx->trace_class = bt_trace_class_create(
601 decoder_config->self_comp);
602 if (!ctx->trace_class) {
603 BT_COMP_LOGE_STR("Cannot create empty trace class.");
604 goto error;
605 }
606 }
607
608 ctx->ctf_tc = ctf_trace_class_create();
609 if (!ctx->ctf_tc) {
610 BT_COMP_LOGE_STR("Cannot create CTF trace class.");
611 goto error;
612 }
613
614 /* Root declaration scope */
615 ctx->current_scope = ctx_decl_scope_create(ctx, NULL);
616 if (!ctx->current_scope) {
617 BT_COMP_LOGE_STR("Cannot create declaration scope.");
618 goto error;
619 }
620
621 ctx->decoder_config = *decoder_config;
622 goto end;
623
624 error:
625 ctx_destroy(ctx);
626 ctx = NULL;
627
628 end:
629 return ctx;
630 }
631
632 /**
633 * Pushes a new declaration scope on top of a visitor context's
634 * declaration scope stack.
635 *
636 * @param ctx Visitor context
637 * @returns 0 on success, or a negative value on error
638 */
639 static
640 int ctx_push_scope(struct ctx *ctx)
641 {
642 int ret = 0;
643 struct ctx_decl_scope *new_scope;
644
645 BT_ASSERT(ctx);
646 new_scope = ctx_decl_scope_create(ctx, ctx->current_scope);
647 if (!new_scope) {
648 BT_COMP_LOGE_STR("Cannot create declaration scope.");
649 ret = -ENOMEM;
650 goto end;
651 }
652
653 ctx->current_scope = new_scope;
654
655 end:
656 return ret;
657 }
658
659 static
660 void ctx_pop_scope(struct ctx *ctx)
661 {
662 struct ctx_decl_scope *parent_scope = NULL;
663
664 BT_ASSERT(ctx);
665
666 if (!ctx->current_scope) {
667 goto end;
668 }
669
670 parent_scope = ctx->current_scope->parent_scope;
671 ctx_decl_scope_destroy(ctx->current_scope);
672 ctx->current_scope = parent_scope;
673
674 end:
675 return;
676 }
677
678 static
679 int visit_field_class_specifier_list(struct ctx *ctx, struct ctf_node *ts_list,
680 struct ctf_field_class **decl);
681
682 static
683 char *remove_underscores_from_field_ref(struct ctx *ctx, const char *field_ref)
684 {
685 const char *in_ch;
686 char *out_ch;
687 char *ret;
688 enum {
689 UNDERSCORE_REMOVE_STATE_REMOVE_NEXT_UNDERSCORE,
690 UNDERSCORE_REMOVE_STATE_DO_NOT_REMOVE_NEXT_UNDERSCORE,
691 } state = UNDERSCORE_REMOVE_STATE_REMOVE_NEXT_UNDERSCORE;
692
693 BT_ASSERT(field_ref);
694 ret = calloc(strlen(field_ref) + 1, 1);
695 if (!ret) {
696 BT_COMP_LOGE("Failed to allocate a string: size=%zu",
697 strlen(field_ref) + 1);
698 goto end;
699 }
700
701 in_ch = field_ref;
702 out_ch = ret;
703
704 while (*in_ch != '\0') {
705 switch (*in_ch) {
706 case ' ':
707 case '\t':
708 /* Remove whitespace */
709 in_ch++;
710 continue;
711 case '_':
712 if (state == UNDERSCORE_REMOVE_STATE_REMOVE_NEXT_UNDERSCORE) {
713 in_ch++;
714 state = UNDERSCORE_REMOVE_STATE_DO_NOT_REMOVE_NEXT_UNDERSCORE;
715 continue;
716 }
717
718 goto copy;
719 case '.':
720 state = UNDERSCORE_REMOVE_STATE_REMOVE_NEXT_UNDERSCORE;
721 goto copy;
722 default:
723 state = UNDERSCORE_REMOVE_STATE_DO_NOT_REMOVE_NEXT_UNDERSCORE;
724 goto copy;
725 }
726
727 copy:
728 *out_ch = *in_ch;
729 in_ch++;
730 out_ch++;
731 }
732
733 end:
734 return ret;
735 }
736
737 static
738 int is_unary_string(struct bt_list_head *head)
739 {
740 int ret = TRUE;
741 struct ctf_node *node;
742
743 bt_list_for_each_entry(node, head, siblings) {
744 if (node->type != NODE_UNARY_EXPRESSION) {
745 ret = FALSE;
746 }
747
748 if (node->u.unary_expression.type != UNARY_STRING) {
749 ret = FALSE;
750 }
751 }
752
753 return ret;
754 }
755
756 static
757 char *concatenate_unary_strings(struct bt_list_head *head)
758 {
759 int i = 0;
760 GString *str;
761 struct ctf_node *node;
762
763 str = g_string_new(NULL);
764 BT_ASSERT(str);
765
766 bt_list_for_each_entry(node, head, siblings) {
767 char *src_string;
768
769 if (
770 node->type != NODE_UNARY_EXPRESSION ||
771 node->u.unary_expression.type != UNARY_STRING ||
772 !(
773 (
774 node->u.unary_expression.link !=
775 UNARY_LINK_UNKNOWN
776 ) ^ (i == 0)
777 )
778 ) {
779 goto error;
780 }
781
782 switch (node->u.unary_expression.link) {
783 case UNARY_DOTLINK:
784 g_string_append(str, ".");
785 break;
786 case UNARY_ARROWLINK:
787 g_string_append(str, "->");
788 break;
789 case UNARY_DOTDOTDOT:
790 g_string_append(str, "...");
791 break;
792 default:
793 break;
794 }
795
796 src_string = node->u.unary_expression.u.string;
797 g_string_append(str, src_string);
798 i++;
799 }
800
801 /* Destroys the container, returns the underlying string */
802 return g_string_free(str, FALSE);
803
804 error:
805 /* This always returns NULL */
806 return g_string_free(str, TRUE);
807 }
808
809 static
810 const char *get_map_clock_name_value(struct bt_list_head *head)
811 {
812 int i = 0;
813 struct ctf_node *node;
814 const char *name = NULL;
815
816 bt_list_for_each_entry(node, head, siblings) {
817 char *src_string;
818 int uexpr_type = node->u.unary_expression.type;
819 int uexpr_link = node->u.unary_expression.link;
820 int cond = node->type != NODE_UNARY_EXPRESSION ||
821 uexpr_type != UNARY_STRING ||
822 !((uexpr_link != UNARY_LINK_UNKNOWN) ^ (i == 0));
823 if (cond) {
824 goto error;
825 }
826
827 /* Needs to be chained with . */
828 switch (node->u.unary_expression.link) {
829 case UNARY_DOTLINK:
830 break;
831 case UNARY_ARROWLINK:
832 case UNARY_DOTDOTDOT:
833 goto error;
834 default:
835 break;
836 }
837
838 src_string = node->u.unary_expression.u.string;
839
840 switch (i) {
841 case 0:
842 if (strcmp("clock", src_string)) {
843 goto error;
844 }
845 break;
846 case 1:
847 name = src_string;
848 break;
849 case 2:
850 if (strcmp("value", src_string)) {
851 goto error;
852 }
853 break;
854 default:
855 /* Extra identifier, unknown */
856 goto error;
857 }
858
859 i++;
860 }
861
862 return name;
863
864 error:
865 return NULL;
866 }
867
868 static
869 int is_unary_unsigned(struct bt_list_head *head)
870 {
871 int ret = TRUE;
872 struct ctf_node *node;
873
874 bt_list_for_each_entry(node, head, siblings) {
875 if (node->type != NODE_UNARY_EXPRESSION) {
876 ret = FALSE;
877 }
878
879 if (node->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT) {
880 ret = FALSE;
881 }
882 }
883
884 return ret;
885 }
886
887 static
888 int get_unary_unsigned(struct ctx *ctx, struct bt_list_head *head,
889 uint64_t *value)
890 {
891 int i = 0;
892 int ret = 0;
893 struct ctf_node *node;
894
895 *value = 0;
896
897 if (bt_list_empty(head)) {
898 ret = -1;
899 goto end;
900 }
901
902 bt_list_for_each_entry(node, head, siblings) {
903 int uexpr_type = node->u.unary_expression.type;
904 int uexpr_link = node->u.unary_expression.link;
905 int cond = node->type != NODE_UNARY_EXPRESSION ||
906 uexpr_type != UNARY_UNSIGNED_CONSTANT ||
907 uexpr_link != UNARY_LINK_UNKNOWN || i != 0;
908 if (cond) {
909 _BT_COMP_LOGE_NODE(node, "Invalid constant unsigned integer.");
910 ret = -EINVAL;
911 goto end;
912 }
913
914 *value = node->u.unary_expression.u.unsigned_constant;
915 i++;
916 }
917
918 end:
919 return ret;
920 }
921
922 static
923 int is_unary_signed(struct bt_list_head *head)
924 {
925 int ret = TRUE;
926 struct ctf_node *node;
927
928 bt_list_for_each_entry(node, head, siblings) {
929 if (node->type != NODE_UNARY_EXPRESSION) {
930 ret = FALSE;
931 }
932
933 if (node->u.unary_expression.type != UNARY_SIGNED_CONSTANT) {
934 ret = FALSE;
935 }
936 }
937
938 return ret;
939 }
940
941 static
942 int get_unary_signed(struct bt_list_head *head, int64_t *value)
943 {
944 int i = 0;
945 int ret = 0;
946 struct ctf_node *node;
947
948 bt_list_for_each_entry(node, head, siblings) {
949 int uexpr_type = node->u.unary_expression.type;
950 int uexpr_link = node->u.unary_expression.link;
951 int cond = node->type != NODE_UNARY_EXPRESSION ||
952 (uexpr_type != UNARY_UNSIGNED_CONSTANT &&
953 uexpr_type != UNARY_SIGNED_CONSTANT) ||
954 uexpr_link != UNARY_LINK_UNKNOWN || i != 0;
955 if (cond) {
956 ret = -EINVAL;
957 goto end;
958 }
959
960 switch (uexpr_type) {
961 case UNARY_UNSIGNED_CONSTANT:
962 *value = (int64_t)
963 node->u.unary_expression.u.unsigned_constant;
964 break;
965 case UNARY_SIGNED_CONSTANT:
966 *value = node->u.unary_expression.u.signed_constant;
967 break;
968 default:
969 ret = -EINVAL;
970 goto end;
971 }
972
973 i++;
974 }
975
976 end:
977 return ret;
978 }
979
980 static
981 int get_unary_uuid(struct ctx *ctx, struct bt_list_head *head,
982 uint8_t *uuid)
983 {
984 int i = 0;
985 int ret = 0;
986 struct ctf_node *node;
987
988 bt_list_for_each_entry(node, head, siblings) {
989 int uexpr_type = node->u.unary_expression.type;
990 int uexpr_link = node->u.unary_expression.link;
991 const char *src_string;
992
993 if (node->type != NODE_UNARY_EXPRESSION ||
994 uexpr_type != UNARY_STRING ||
995 uexpr_link != UNARY_LINK_UNKNOWN ||
996 i != 0) {
997 ret = -EINVAL;
998 goto end;
999 }
1000
1001 src_string = node->u.unary_expression.u.string;
1002 ret = bt_uuid_from_str(src_string, uuid);
1003 if (ret) {
1004 _BT_COMP_LOGE_NODE(node,
1005 "Cannot parse UUID: uuid=\"%s\"", src_string);
1006 goto end;
1007 }
1008 }
1009
1010 end:
1011 return ret;
1012 }
1013
1014 static
1015 int get_boolean(struct ctx *ctx, struct ctf_node *unary_expr)
1016 {
1017 int ret = 0;
1018
1019 if (unary_expr->type != NODE_UNARY_EXPRESSION) {
1020 _BT_COMP_LOGE_NODE(unary_expr,
1021 "Expecting unary expression: node-type=%d",
1022 unary_expr->type);
1023 ret = -EINVAL;
1024 goto end;
1025 }
1026
1027 switch (unary_expr->u.unary_expression.type) {
1028 case UNARY_UNSIGNED_CONSTANT:
1029 ret = (unary_expr->u.unary_expression.u.unsigned_constant != 0);
1030 break;
1031 case UNARY_SIGNED_CONSTANT:
1032 ret = (unary_expr->u.unary_expression.u.signed_constant != 0);
1033 break;
1034 case UNARY_STRING:
1035 {
1036 const char *str = unary_expr->u.unary_expression.u.string;
1037
1038 if (!strcmp(str, "true") || !strcmp(str, "TRUE")) {
1039 ret = TRUE;
1040 } else if (!strcmp(str, "false") || !strcmp(str, "FALSE")) {
1041 ret = FALSE;
1042 } else {
1043 _BT_COMP_LOGE_NODE(unary_expr,
1044 "Unexpected boolean value: value=\"%s\"", str);
1045 ret = -EINVAL;
1046 goto end;
1047 }
1048 break;
1049 }
1050 default:
1051 _BT_COMP_LOGE_NODE(unary_expr,
1052 "Unexpected unary expression type: node-type=%d",
1053 unary_expr->u.unary_expression.type);
1054 ret = -EINVAL;
1055 goto end;
1056 }
1057
1058 end:
1059 return ret;
1060 }
1061
1062 static
1063 enum ctf_byte_order byte_order_from_unary_expr(struct ctx *ctx,
1064 struct ctf_node *unary_expr)
1065 {
1066 const char *str;
1067 enum ctf_byte_order bo = -1;
1068
1069 if (unary_expr->u.unary_expression.type != UNARY_STRING) {
1070 _BT_COMP_LOGE_NODE(unary_expr,
1071 "\"byte_order\" attribute: expecting `be`, `le`, `network`, or `native`.");
1072 goto end;
1073 }
1074
1075 str = unary_expr->u.unary_expression.u.string;
1076
1077 if (!strcmp(str, "be") || !strcmp(str, "network")) {
1078 bo = CTF_BYTE_ORDER_BIG;
1079 } else if (!strcmp(str, "le")) {
1080 bo = CTF_BYTE_ORDER_LITTLE;
1081 } else if (!strcmp(str, "native")) {
1082 bo = CTF_BYTE_ORDER_DEFAULT;
1083 } else {
1084 _BT_COMP_LOGE_NODE(unary_expr,
1085 "Unexpected \"byte_order\" attribute value: "
1086 "expecting `be`, `le`, `network`, or `native`: value=\"%s\"",
1087 str);
1088 goto end;
1089 }
1090
1091 end:
1092 return bo;
1093 }
1094
1095 static
1096 enum ctf_byte_order get_real_byte_order(struct ctx *ctx,
1097 struct ctf_node *uexpr)
1098 {
1099 enum ctf_byte_order bo = byte_order_from_unary_expr(ctx, uexpr);
1100
1101 if (bo == CTF_BYTE_ORDER_DEFAULT) {
1102 bo = ctx->ctf_tc->default_byte_order;
1103 }
1104
1105 return bo;
1106 }
1107
1108 static
1109 int is_align_valid(uint64_t align)
1110 {
1111 return (align != 0) && !(align & (align - UINT64_C(1)));
1112 }
1113
1114 static
1115 int get_class_specifier_name(struct ctx *ctx, struct ctf_node *cls_specifier,
1116 GString *str)
1117 {
1118 int ret = 0;
1119
1120 if (cls_specifier->type != NODE_TYPE_SPECIFIER) {
1121 _BT_COMP_LOGE_NODE(cls_specifier,
1122 "Unexpected node type: node-type=%d",
1123 cls_specifier->type);
1124 ret = -EINVAL;
1125 goto end;
1126 }
1127
1128 switch (cls_specifier->u.field_class_specifier.type) {
1129 case TYPESPEC_VOID:
1130 g_string_append(str, "void");
1131 break;
1132 case TYPESPEC_CHAR:
1133 g_string_append(str, "char");
1134 break;
1135 case TYPESPEC_SHORT:
1136 g_string_append(str, "short");
1137 break;
1138 case TYPESPEC_INT:
1139 g_string_append(str, "int");
1140 break;
1141 case TYPESPEC_LONG:
1142 g_string_append(str, "long");
1143 break;
1144 case TYPESPEC_FLOAT:
1145 g_string_append(str, "float");
1146 break;
1147 case TYPESPEC_DOUBLE:
1148 g_string_append(str, "double");
1149 break;
1150 case TYPESPEC_SIGNED:
1151 g_string_append(str, "signed");
1152 break;
1153 case TYPESPEC_UNSIGNED:
1154 g_string_append(str, "unsigned");
1155 break;
1156 case TYPESPEC_BOOL:
1157 g_string_append(str, "bool");
1158 break;
1159 case TYPESPEC_COMPLEX:
1160 g_string_append(str, "_Complex");
1161 break;
1162 case TYPESPEC_IMAGINARY:
1163 g_string_append(str, "_Imaginary");
1164 break;
1165 case TYPESPEC_CONST:
1166 g_string_append(str, "const");
1167 break;
1168 case TYPESPEC_ID_TYPE:
1169 if (cls_specifier->u.field_class_specifier.id_type) {
1170 g_string_append(str,
1171 cls_specifier->u.field_class_specifier.id_type);
1172 }
1173 break;
1174 case TYPESPEC_STRUCT:
1175 {
1176 struct ctf_node *node = cls_specifier->u.field_class_specifier.node;
1177
1178 if (!node->u._struct.name) {
1179 _BT_COMP_LOGE_NODE(node, "Unexpected empty structure field class name.");
1180 ret = -EINVAL;
1181 goto end;
1182 }
1183
1184 g_string_append(str, "struct ");
1185 g_string_append(str, node->u._struct.name);
1186 break;
1187 }
1188 case TYPESPEC_VARIANT:
1189 {
1190 struct ctf_node *node = cls_specifier->u.field_class_specifier.node;
1191
1192 if (!node->u.variant.name) {
1193 _BT_COMP_LOGE_NODE(node, "Unexpected empty variant field class name.");
1194 ret = -EINVAL;
1195 goto end;
1196 }
1197
1198 g_string_append(str, "variant ");
1199 g_string_append(str, node->u.variant.name);
1200 break;
1201 }
1202 case TYPESPEC_ENUM:
1203 {
1204 struct ctf_node *node = cls_specifier->u.field_class_specifier.node;
1205
1206 if (!node->u._enum.enum_id) {
1207 _BT_COMP_LOGE_NODE(node,
1208 "Unexpected empty enumeration field class (`enum`) name.");
1209 ret = -EINVAL;
1210 goto end;
1211 }
1212
1213 g_string_append(str, "enum ");
1214 g_string_append(str, node->u._enum.enum_id);
1215 break;
1216 }
1217 case TYPESPEC_FLOATING_POINT:
1218 case TYPESPEC_INTEGER:
1219 case TYPESPEC_STRING:
1220 default:
1221 _BT_COMP_LOGE_NODE(cls_specifier->u.field_class_specifier.node,
1222 "Unexpected field class specifier type: %d",
1223 cls_specifier->u.field_class_specifier.type);
1224 ret = -EINVAL;
1225 goto end;
1226 }
1227
1228 end:
1229 return ret;
1230 }
1231
1232 static
1233 int get_class_specifier_list_name(struct ctx *ctx,
1234 struct ctf_node *cls_specifier_list, GString *str)
1235 {
1236 int ret = 0;
1237 struct ctf_node *iter;
1238 int alias_item_nr = 0;
1239 struct bt_list_head *head =
1240 &cls_specifier_list->u.field_class_specifier_list.head;
1241
1242 bt_list_for_each_entry(iter, head, siblings) {
1243 if (alias_item_nr != 0) {
1244 g_string_append(str, " ");
1245 }
1246
1247 alias_item_nr++;
1248 ret = get_class_specifier_name(ctx, iter, str);
1249 if (ret) {
1250 goto end;
1251 }
1252 }
1253
1254 end:
1255 return ret;
1256 }
1257
1258 static
1259 GQuark create_class_alias_identifier(struct ctx *ctx,
1260 struct ctf_node *cls_specifier_list,
1261 struct ctf_node *node_field_class_declarator)
1262 {
1263 int ret;
1264 char *str_c;
1265 GString *str;
1266 GQuark qalias = 0;
1267 struct ctf_node *iter;
1268 struct bt_list_head *pointers =
1269 &node_field_class_declarator->u.field_class_declarator.pointers;
1270
1271 str = g_string_new("");
1272 ret = get_class_specifier_list_name(ctx, cls_specifier_list, str);
1273 if (ret) {
1274 g_string_free(str, TRUE);
1275 goto end;
1276 }
1277
1278 bt_list_for_each_entry(iter, pointers, siblings) {
1279 g_string_append(str, " *");
1280
1281 if (iter->u.pointer.const_qualifier) {
1282 g_string_append(str, " const");
1283 }
1284 }
1285
1286 str_c = g_string_free(str, FALSE);
1287 qalias = g_quark_from_string(str_c);
1288 g_free(str_c);
1289
1290 end:
1291 return qalias;
1292 }
1293
1294 static
1295 int visit_field_class_declarator(struct ctx *ctx,
1296 struct ctf_node *cls_specifier_list,
1297 GQuark *field_name, struct ctf_node *node_field_class_declarator,
1298 struct ctf_field_class **field_decl,
1299 struct ctf_field_class *nested_decl)
1300 {
1301 /*
1302 * During this whole function, nested_decl is always OURS,
1303 * whereas field_decl is an output which we create, but
1304 * belongs to the caller (it is moved).
1305 */
1306 int ret = 0;
1307 *field_decl = NULL;
1308
1309 /* Validate field class declarator node */
1310 if (node_field_class_declarator) {
1311 if (node_field_class_declarator->u.field_class_declarator.type ==
1312 TYPEDEC_UNKNOWN) {
1313 _BT_COMP_LOGE_NODE(node_field_class_declarator,
1314 "Unexpected field class declarator type: type=%d",
1315 node_field_class_declarator->u.field_class_declarator.type);
1316 ret = -EINVAL;
1317 goto error;
1318 }
1319
1320 /* TODO: GCC bitfields not supported yet */
1321 if (node_field_class_declarator->u.field_class_declarator.bitfield_len !=
1322 NULL) {
1323 _BT_COMP_LOGE_NODE(node_field_class_declarator,
1324 "GCC bitfields are not supported as of this version.");
1325 ret = -EPERM;
1326 goto error;
1327 }
1328 }
1329
1330 /* Find the right nested declaration if not provided */
1331 if (!nested_decl) {
1332 struct bt_list_head *pointers =
1333 &node_field_class_declarator->u.field_class_declarator.pointers;
1334
1335 if (node_field_class_declarator && !bt_list_empty(pointers)) {
1336 GQuark qalias;
1337
1338 /*
1339 * If we have a pointer declarator, it HAS to
1340 * be present in the field class aliases (else
1341 * fail).
1342 */
1343 qalias = create_class_alias_identifier(ctx,
1344 cls_specifier_list, node_field_class_declarator);
1345 nested_decl =
1346 ctx_decl_scope_lookup_alias(ctx,
1347 ctx->current_scope,
1348 g_quark_to_string(qalias), -1, true);
1349 if (!nested_decl) {
1350 _BT_COMP_LOGE_NODE(node_field_class_declarator,
1351 "Cannot find class alias: name=\"%s\"",
1352 g_quark_to_string(qalias));
1353 ret = -EINVAL;
1354 goto error;
1355 }
1356
1357 if (nested_decl->type == CTF_FIELD_CLASS_TYPE_INT) {
1358 /* Pointer: force integer's base to 16 */
1359 struct ctf_field_class_int *int_fc =
1360 (void *) nested_decl;
1361
1362 int_fc->disp_base =
1363 BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL;
1364 }
1365 } else {
1366 ret = visit_field_class_specifier_list(ctx,
1367 cls_specifier_list, &nested_decl);
1368 if (ret) {
1369 BT_ASSERT(!nested_decl);
1370 goto error;
1371 }
1372 }
1373 }
1374
1375 BT_ASSERT(nested_decl);
1376
1377 if (!node_field_class_declarator) {
1378 *field_decl = nested_decl;
1379 nested_decl = NULL;
1380 goto end;
1381 }
1382
1383 if (node_field_class_declarator->u.field_class_declarator.type == TYPEDEC_ID) {
1384 if (node_field_class_declarator->u.field_class_declarator.u.id) {
1385 const char *id =
1386 node_field_class_declarator->u.field_class_declarator.u.id;
1387
1388 if (id[0] == '_') {
1389 id++;
1390 }
1391
1392 *field_name = g_quark_from_string(id);
1393 } else {
1394 *field_name = 0;
1395 }
1396
1397 *field_decl = nested_decl;
1398 nested_decl = NULL;
1399 goto end;
1400 } else {
1401 struct ctf_node *first;
1402 struct ctf_field_class *decl = NULL;
1403 struct ctf_field_class *outer_field_decl = NULL;
1404 struct bt_list_head *length =
1405 &node_field_class_declarator->
1406 u.field_class_declarator.u.nested.length;
1407
1408 /* Create array/sequence, pass nested_decl as child */
1409 if (bt_list_empty(length)) {
1410 _BT_COMP_LOGE_NODE(node_field_class_declarator,
1411 "Expecting length field reference or value.");
1412 ret = -EINVAL;
1413 goto error;
1414 }
1415
1416 first = _BT_LIST_FIRST_ENTRY(length, struct ctf_node, siblings);
1417 if (first->type != NODE_UNARY_EXPRESSION) {
1418 _BT_COMP_LOGE_NODE(first,
1419 "Unexpected node type: node-type=%d",
1420 first->type);
1421 ret = -EINVAL;
1422 goto error;
1423 }
1424
1425 switch (first->u.unary_expression.type) {
1426 case UNARY_UNSIGNED_CONSTANT:
1427 {
1428 struct ctf_field_class_array *array_decl = NULL;
1429
1430 array_decl = ctf_field_class_array_create();
1431 BT_ASSERT(array_decl);
1432 array_decl->length =
1433 first->u.unary_expression.u.unsigned_constant;
1434 array_decl->base.elem_fc = nested_decl;
1435 nested_decl = NULL;
1436 decl = (void *) array_decl;
1437 break;
1438 }
1439 case UNARY_STRING:
1440 {
1441 /* Lookup unsigned integer definition, create seq. */
1442 struct ctf_field_class_sequence *seq_decl = NULL;
1443 char *length_name = concatenate_unary_strings(length);
1444
1445 if (!length_name) {
1446 _BT_COMP_LOGE_NODE(node_field_class_declarator,
1447 "Cannot concatenate unary strings.");
1448 ret = -EINVAL;
1449 goto error;
1450 }
1451
1452 if (strncmp(length_name, "env.", 4) == 0) {
1453 /* This is, in fact, an array */
1454 const char *env_entry_name = &length_name[4];
1455 struct ctf_trace_class_env_entry *env_entry =
1456 ctf_trace_class_borrow_env_entry_by_name(
1457 ctx->ctf_tc, env_entry_name);
1458 struct ctf_field_class_array *array_decl;
1459
1460 if (!env_entry) {
1461 _BT_COMP_LOGE_NODE(node_field_class_declarator,
1462 "Cannot find environment entry: "
1463 "name=\"%s\"", env_entry_name);
1464 ret = -EINVAL;
1465 goto error;
1466 }
1467
1468 if (env_entry->type != CTF_TRACE_CLASS_ENV_ENTRY_TYPE_INT) {
1469 _BT_COMP_LOGE_NODE(node_field_class_declarator,
1470 "Wrong environment entry type "
1471 "(expecting integer): "
1472 "name=\"%s\"", env_entry_name);
1473 ret = -EINVAL;
1474 goto error;
1475 }
1476
1477 if (env_entry->value.i < 0) {
1478 _BT_COMP_LOGE_NODE(node_field_class_declarator,
1479 "Invalid, negative array length: "
1480 "env-entry-name=\"%s\", "
1481 "value=%" PRId64,
1482 env_entry_name,
1483 env_entry->value.i);
1484 ret = -EINVAL;
1485 goto error;
1486 }
1487
1488 array_decl = ctf_field_class_array_create();
1489 BT_ASSERT(array_decl);
1490 array_decl->length =
1491 (uint64_t) env_entry->value.i;
1492 array_decl->base.elem_fc = nested_decl;
1493 nested_decl = NULL;
1494 decl = (void *) array_decl;
1495 } else {
1496 char *length_name_no_underscore =
1497 remove_underscores_from_field_ref(ctx,
1498 length_name);
1499 if (!length_name_no_underscore) {
1500 /*
1501 * remove_underscores_from_field_ref()
1502 * logs errors
1503 */
1504 ret = -EINVAL;
1505 goto error;
1506 }
1507 seq_decl = ctf_field_class_sequence_create();
1508 BT_ASSERT(seq_decl);
1509 seq_decl->base.elem_fc = nested_decl;
1510 nested_decl = NULL;
1511 g_string_assign(seq_decl->length_ref,
1512 length_name_no_underscore);
1513 free(length_name_no_underscore);
1514 decl = (void *) seq_decl;
1515 }
1516
1517 g_free(length_name);
1518 break;
1519 }
1520 default:
1521 ret = -EINVAL;
1522 goto error;
1523 }
1524
1525 BT_ASSERT(!nested_decl);
1526 BT_ASSERT(decl);
1527 BT_ASSERT(!*field_decl);
1528
1529 /*
1530 * At this point, we found the next nested declaration.
1531 * We currently own this (and lost the ownership of
1532 * nested_decl in the meantime). Pass this next
1533 * nested declaration as the content of the outer
1534 * container, MOVING its ownership.
1535 */
1536 ret = visit_field_class_declarator(ctx, cls_specifier_list,
1537 field_name,
1538 node_field_class_declarator->
1539 u.field_class_declarator.u.nested.field_class_declarator,
1540 &outer_field_decl, decl);
1541 decl = NULL;
1542 if (ret) {
1543 BT_ASSERT(!outer_field_decl);
1544 ret = -EINVAL;
1545 goto error;
1546 }
1547
1548 BT_ASSERT(outer_field_decl);
1549 *field_decl = outer_field_decl;
1550 outer_field_decl = NULL;
1551 }
1552
1553 BT_ASSERT(*field_decl);
1554 goto end;
1555
1556 error:
1557 ctf_field_class_destroy(*field_decl);
1558 *field_decl = NULL;
1559
1560 if (ret >= 0) {
1561 ret = -1;
1562 }
1563
1564 end:
1565 ctf_field_class_destroy(nested_decl);
1566 nested_decl = NULL;
1567 return ret;
1568 }
1569
1570 static
1571 int visit_struct_decl_field(struct ctx *ctx,
1572 struct ctf_field_class_struct *struct_decl,
1573 struct ctf_node *cls_specifier_list,
1574 struct bt_list_head *field_class_declarators)
1575 {
1576 int ret = 0;
1577 struct ctf_node *iter;
1578 struct ctf_field_class *field_decl = NULL;
1579
1580 bt_list_for_each_entry(iter, field_class_declarators, siblings) {
1581 field_decl = NULL;
1582 GQuark qfield_name;
1583 const char *field_name;
1584
1585 ret = visit_field_class_declarator(ctx, cls_specifier_list,
1586 &qfield_name, iter, &field_decl, NULL);
1587 if (ret) {
1588 BT_ASSERT(!field_decl);
1589 _BT_COMP_LOGE_NODE(cls_specifier_list,
1590 "Cannot visit field class declarator: ret=%d", ret);
1591 goto error;
1592 }
1593
1594 BT_ASSERT(field_decl);
1595 field_name = g_quark_to_string(qfield_name);
1596
1597 /* Check if field with same name already exists */
1598 if (ctf_field_class_struct_borrow_member_by_name(
1599 struct_decl, field_name)) {
1600 _BT_COMP_LOGE_NODE(cls_specifier_list,
1601 "Duplicate field in structure field class: "
1602 "field-name=\"%s\"", field_name);
1603 ret = -EINVAL;
1604 goto error;
1605 }
1606
1607 /* Add field to structure */
1608 ctf_field_class_struct_append_member(struct_decl,
1609 field_name, field_decl);
1610 field_decl = NULL;
1611 }
1612
1613 return 0;
1614
1615 error:
1616 ctf_field_class_destroy(field_decl);
1617 field_decl = NULL;
1618 return ret;
1619 }
1620
1621 static
1622 int visit_variant_decl_field(struct ctx *ctx,
1623 struct ctf_field_class_variant *variant_decl,
1624 struct ctf_node *cls_specifier_list,
1625 struct bt_list_head *field_class_declarators)
1626 {
1627 int ret = 0;
1628 struct ctf_node *iter;
1629 struct ctf_field_class *field_decl = NULL;
1630
1631 bt_list_for_each_entry(iter, field_class_declarators, siblings) {
1632 field_decl = NULL;
1633 GQuark qfield_name;
1634 const char *field_name;
1635
1636 ret = visit_field_class_declarator(ctx, cls_specifier_list,
1637 &qfield_name, iter, &field_decl, NULL);
1638 if (ret) {
1639 BT_ASSERT(!field_decl);
1640 _BT_COMP_LOGE_NODE(cls_specifier_list,
1641 "Cannot visit field class declarator: ret=%d", ret);
1642 goto error;
1643 }
1644
1645 BT_ASSERT(field_decl);
1646 field_name = g_quark_to_string(qfield_name);
1647
1648 /* Check if field with same name already exists */
1649 if (ctf_field_class_variant_borrow_option_by_name(
1650 variant_decl, field_name)) {
1651 _BT_COMP_LOGE_NODE(cls_specifier_list,
1652 "Duplicate field in variant field class: "
1653 "field-name=\"%s\"", field_name);
1654 ret = -EINVAL;
1655 goto error;
1656 }
1657
1658 /* Add field to structure */
1659 ctf_field_class_variant_append_option(variant_decl,
1660 field_name, field_decl);
1661 field_decl = NULL;
1662 }
1663
1664 return 0;
1665
1666 error:
1667 ctf_field_class_destroy(field_decl);
1668 field_decl = NULL;
1669 return ret;
1670 }
1671
1672 static
1673 int visit_field_class_def(struct ctx *ctx, struct ctf_node *cls_specifier_list,
1674 struct bt_list_head *field_class_declarators)
1675 {
1676 int ret = 0;
1677 GQuark qidentifier;
1678 struct ctf_node *iter;
1679 struct ctf_field_class *class_decl = NULL;
1680
1681 bt_list_for_each_entry(iter, field_class_declarators, siblings) {
1682 ret = visit_field_class_declarator(ctx, cls_specifier_list,
1683 &qidentifier, iter, &class_decl, NULL);
1684 if (ret) {
1685 _BT_COMP_LOGE_NODE(iter,
1686 "Cannot visit field class declarator: ret=%d", ret);
1687 ret = -EINVAL;
1688 goto end;
1689 }
1690
1691 /* Do not allow field class def and alias of untagged variants */
1692 if (class_decl->type == CTF_FIELD_CLASS_TYPE_VARIANT) {
1693 struct ctf_field_class_variant *var_fc =
1694 (void *) class_decl;
1695
1696 if (var_fc->tag_path.path->len == 0) {
1697 _BT_COMP_LOGE_NODE(iter,
1698 "Type definition of untagged variant field class is not allowed.");
1699 ret = -EPERM;
1700 goto end;
1701 }
1702 }
1703
1704 ret = ctx_decl_scope_register_alias(ctx, ctx->current_scope,
1705 g_quark_to_string(qidentifier), class_decl);
1706 if (ret) {
1707 _BT_COMP_LOGE_NODE(iter,
1708 "Cannot register field class alias: name=\"%s\"",
1709 g_quark_to_string(qidentifier));
1710 goto end;
1711 }
1712 }
1713
1714 end:
1715 ctf_field_class_destroy(class_decl);
1716 class_decl = NULL;
1717 return ret;
1718 }
1719
1720 static
1721 int visit_field_class_alias(struct ctx *ctx, struct ctf_node *target,
1722 struct ctf_node *alias)
1723 {
1724 int ret = 0;
1725 GQuark qalias;
1726 struct ctf_node *node;
1727 GQuark qdummy_field_name;
1728 struct ctf_field_class *class_decl = NULL;
1729
1730 /* Create target field class */
1731 if (bt_list_empty(&target->u.field_class_alias_target.field_class_declarators)) {
1732 node = NULL;
1733 } else {
1734 node = _BT_LIST_FIRST_ENTRY(
1735 &target->u.field_class_alias_target.field_class_declarators,
1736 struct ctf_node, siblings);
1737 }
1738
1739 ret = visit_field_class_declarator(ctx,
1740 target->u.field_class_alias_target.field_class_specifier_list,
1741 &qdummy_field_name, node, &class_decl, NULL);
1742 if (ret) {
1743 BT_ASSERT(!class_decl);
1744 _BT_COMP_LOGE_NODE(node,
1745 "Cannot visit field class declarator: ret=%d", ret);
1746 goto end;
1747 }
1748
1749 /* Do not allow field class def and alias of untagged variants */
1750 if (class_decl->type == CTF_FIELD_CLASS_TYPE_VARIANT) {
1751 struct ctf_field_class_variant *var_fc = (void *) class_decl;
1752
1753 if (var_fc->tag_path.path->len == 0) {
1754 _BT_COMP_LOGE_NODE(target,
1755 "Type definition of untagged variant field class is not allowed.");
1756 ret = -EPERM;
1757 goto end;
1758 }
1759 }
1760
1761 /*
1762 * The semantic validator does not check whether the target is
1763 * abstract or not (if it has an identifier). Check it here.
1764 */
1765 if (qdummy_field_name != 0) {
1766 _BT_COMP_LOGE_NODE(target,
1767 "Expecting empty identifier: id=\"%s\"",
1768 g_quark_to_string(qdummy_field_name));
1769 ret = -EINVAL;
1770 goto end;
1771 }
1772
1773 /* Create alias identifier */
1774 node = _BT_LIST_FIRST_ENTRY(&alias->u.field_class_alias_name.field_class_declarators,
1775 struct ctf_node, siblings);
1776 qalias = create_class_alias_identifier(ctx,
1777 alias->u.field_class_alias_name.field_class_specifier_list, node);
1778 ret = ctx_decl_scope_register_alias(ctx, ctx->current_scope,
1779 g_quark_to_string(qalias), class_decl);
1780 if (ret) {
1781 _BT_COMP_LOGE_NODE(node,
1782 "Cannot register class alias: name=\"%s\"",
1783 g_quark_to_string(qalias));
1784 goto end;
1785 }
1786
1787 end:
1788 ctf_field_class_destroy(class_decl);
1789 class_decl = NULL;
1790 return ret;
1791 }
1792
1793 static
1794 int visit_struct_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
1795 struct ctf_field_class_struct *struct_decl)
1796 {
1797 int ret = 0;
1798
1799 switch (entry_node->type) {
1800 case NODE_TYPEDEF:
1801 ret = visit_field_class_def(ctx,
1802 entry_node->u.field_class_def.field_class_specifier_list,
1803 &entry_node->u.field_class_def.field_class_declarators);
1804 if (ret) {
1805 _BT_COMP_LOGE_NODE(entry_node,
1806 "Cannot add field class found in structure field class: ret=%d",
1807 ret);
1808 goto end;
1809 }
1810 break;
1811 case NODE_TYPEALIAS:
1812 ret = visit_field_class_alias(ctx, entry_node->u.field_class_alias.target,
1813 entry_node->u.field_class_alias.alias);
1814 if (ret) {
1815 _BT_COMP_LOGE_NODE(entry_node,
1816 "Cannot add field class alias found in structure field class: ret=%d",
1817 ret);
1818 goto end;
1819 }
1820 break;
1821 case NODE_STRUCT_OR_VARIANT_DECLARATION:
1822 /* Field */
1823 ret = visit_struct_decl_field(ctx, struct_decl,
1824 entry_node->u.struct_or_variant_declaration.
1825 field_class_specifier_list,
1826 &entry_node->u.struct_or_variant_declaration.
1827 field_class_declarators);
1828 if (ret) {
1829 goto end;
1830 }
1831 break;
1832 default:
1833 _BT_COMP_LOGE_NODE(entry_node,
1834 "Unexpected node type: node-type=%d", entry_node->type);
1835 ret = -EINVAL;
1836 goto end;
1837 }
1838
1839 end:
1840 return ret;
1841 }
1842
1843 static
1844 int visit_variant_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
1845 struct ctf_field_class_variant *variant_decl)
1846 {
1847 int ret = 0;
1848
1849 switch (entry_node->type) {
1850 case NODE_TYPEDEF:
1851 ret = visit_field_class_def(ctx,
1852 entry_node->u.field_class_def.field_class_specifier_list,
1853 &entry_node->u.field_class_def.field_class_declarators);
1854 if (ret) {
1855 _BT_COMP_LOGE_NODE(entry_node,
1856 "Cannot add field class found in variant field class: ret=%d",
1857 ret);
1858 goto end;
1859 }
1860 break;
1861 case NODE_TYPEALIAS:
1862 ret = visit_field_class_alias(ctx, entry_node->u.field_class_alias.target,
1863 entry_node->u.field_class_alias.alias);
1864 if (ret) {
1865 _BT_COMP_LOGE_NODE(entry_node,
1866 "Cannot add field class alias found in variant field class: ret=%d",
1867 ret);
1868 goto end;
1869 }
1870 break;
1871 case NODE_STRUCT_OR_VARIANT_DECLARATION:
1872 /* Field */
1873 ret = visit_variant_decl_field(ctx, variant_decl,
1874 entry_node->u.struct_or_variant_declaration.
1875 field_class_specifier_list,
1876 &entry_node->u.struct_or_variant_declaration.
1877 field_class_declarators);
1878 if (ret) {
1879 goto end;
1880 }
1881 break;
1882 default:
1883 _BT_COMP_LOGE_NODE(entry_node,
1884 "Unexpected node type: node-type=%d",
1885 entry_node->type);
1886 ret = -EINVAL;
1887 goto end;
1888 }
1889
1890 end:
1891 return ret;
1892 }
1893
1894 static
1895 int visit_struct_decl(struct ctx *ctx, const char *name,
1896 struct bt_list_head *decl_list, int has_body,
1897 struct bt_list_head *min_align,
1898 struct ctf_field_class_struct **struct_decl)
1899 {
1900 int ret = 0;
1901
1902 BT_ASSERT(struct_decl);
1903 *struct_decl = NULL;
1904
1905 /* For named struct (without body), lookup in declaration scope */
1906 if (!has_body) {
1907 if (!name) {
1908 BT_COMP_LOGE_STR("Bodyless structure field class: missing name.");
1909 ret = -EPERM;
1910 goto error;
1911 }
1912
1913 *struct_decl = ctx_decl_scope_lookup_struct(ctx, ctx->current_scope,
1914 name, -1, true);
1915 if (!*struct_decl) {
1916 BT_COMP_LOGE("Cannot find structure field class: name=\"struct %s\"",
1917 name);
1918 ret = -EINVAL;
1919 goto error;
1920 }
1921 } else {
1922 struct ctf_node *entry_node;
1923 uint64_t min_align_value = 0;
1924
1925 if (name) {
1926 if (ctx_decl_scope_lookup_struct(ctx,
1927 ctx->current_scope, name, 1, false)) {
1928 BT_COMP_LOGE("Structure field class already declared in local scope: "
1929 "name=\"struct %s\"", name);
1930 ret = -EINVAL;
1931 goto error;
1932 }
1933 }
1934
1935 if (!bt_list_empty(min_align)) {
1936 ret = get_unary_unsigned(ctx, min_align,
1937 &min_align_value);
1938 if (ret) {
1939 BT_COMP_LOGE("Unexpected unary expression for structure field class's `align` attribute: "
1940 "ret=%d", ret);
1941 goto error;
1942 }
1943 }
1944
1945 *struct_decl = ctf_field_class_struct_create();
1946 BT_ASSERT(*struct_decl);
1947
1948 if (min_align_value != 0) {
1949 (*struct_decl)->base.alignment = min_align_value;
1950 }
1951
1952 _TRY_PUSH_SCOPE_OR_GOTO_ERROR();
1953
1954 bt_list_for_each_entry(entry_node, decl_list, siblings) {
1955 ret = visit_struct_decl_entry(ctx, entry_node,
1956 *struct_decl);
1957 if (ret) {
1958 _BT_COMP_LOGE_NODE(entry_node,
1959 "Cannot visit structure field class entry: "
1960 "ret=%d", ret);
1961 ctx_pop_scope(ctx);
1962 goto error;
1963 }
1964 }
1965
1966 ctx_pop_scope(ctx);
1967
1968 if (name) {
1969 ret = ctx_decl_scope_register_struct(ctx,
1970 ctx->current_scope, name, *struct_decl);
1971 if (ret) {
1972 BT_COMP_LOGE("Cannot register structure field class in declaration scope: "
1973 "name=\"struct %s\", ret=%d", name, ret);
1974 goto error;
1975 }
1976 }
1977 }
1978
1979 return 0;
1980
1981 error:
1982 ctf_field_class_destroy((void *) *struct_decl);
1983 *struct_decl = NULL;
1984 return ret;
1985 }
1986
1987 static
1988 int visit_variant_decl(struct ctx *ctx, const char *name,
1989 const char *tag, struct bt_list_head *decl_list,
1990 int has_body, struct ctf_field_class_variant **variant_decl)
1991 {
1992 int ret = 0;
1993 struct ctf_field_class_variant *untagged_variant_decl = NULL;
1994
1995 BT_ASSERT(variant_decl);
1996 *variant_decl = NULL;
1997
1998 /* For named variant (without body), lookup in declaration scope */
1999 if (!has_body) {
2000 if (!name) {
2001 BT_COMP_LOGE_STR("Bodyless variant field class: missing name.");
2002 ret = -EPERM;
2003 goto error;
2004 }
2005
2006 untagged_variant_decl =
2007 ctx_decl_scope_lookup_variant(ctx, ctx->current_scope,
2008 name, -1, true);
2009 if (!untagged_variant_decl) {
2010 BT_COMP_LOGE("Cannot find variant field class: name=\"variant %s\"",
2011 name);
2012 ret = -EINVAL;
2013 goto error;
2014 }
2015 } else {
2016 struct ctf_node *entry_node;
2017
2018 if (name) {
2019 if (ctx_decl_scope_lookup_variant(ctx,
2020 ctx->current_scope, name, 1, false)) {
2021 BT_COMP_LOGE("Variant field class already declared in local scope: "
2022 "name=\"variant %s\"", name);
2023 ret = -EINVAL;
2024 goto error;
2025 }
2026 }
2027
2028 untagged_variant_decl = ctf_field_class_variant_create();
2029 BT_ASSERT(untagged_variant_decl);
2030 _TRY_PUSH_SCOPE_OR_GOTO_ERROR();
2031
2032 bt_list_for_each_entry(entry_node, decl_list, siblings) {
2033 ret = visit_variant_decl_entry(ctx, entry_node,
2034 untagged_variant_decl);
2035 if (ret) {
2036 _BT_COMP_LOGE_NODE(entry_node,
2037 "Cannot visit variant field class entry: "
2038 "ret=%d", ret);
2039 ctx_pop_scope(ctx);
2040 goto error;
2041 }
2042 }
2043
2044 ctx_pop_scope(ctx);
2045
2046 if (name) {
2047 ret = ctx_decl_scope_register_variant(ctx,
2048 ctx->current_scope, name,
2049 untagged_variant_decl);
2050 if (ret) {
2051 BT_COMP_LOGE("Cannot register variant field class in declaration scope: "
2052 "name=\"variant %s\", ret=%d", name, ret);
2053 goto error;
2054 }
2055 }
2056 }
2057
2058 /*
2059 * If tagged, create tagged variant and return; otherwise
2060 * return untagged variant.
2061 */
2062 if (!tag) {
2063 *variant_decl = untagged_variant_decl;
2064 untagged_variant_decl = NULL;
2065 } else {
2066 /*
2067 * At this point, we have a fresh untagged variant; nobody
2068 * else owns it. Set its tag now.
2069 */
2070 char *tag_no_underscore =
2071 remove_underscores_from_field_ref(ctx, tag);
2072
2073 if (!tag_no_underscore) {
2074 /* remove_underscores_from_field_ref() logs errors */
2075 goto error;
2076 }
2077
2078 g_string_assign(untagged_variant_decl->tag_ref,
2079 tag_no_underscore);
2080 free(tag_no_underscore);
2081 *variant_decl = untagged_variant_decl;
2082 untagged_variant_decl = NULL;
2083 }
2084
2085 BT_ASSERT(!untagged_variant_decl);
2086 BT_ASSERT(*variant_decl);
2087 return 0;
2088
2089 error:
2090 ctf_field_class_destroy((void *) untagged_variant_decl);
2091 untagged_variant_decl = NULL;
2092 ctf_field_class_destroy((void *) *variant_decl);
2093 *variant_decl = NULL;
2094 return ret;
2095 }
2096
2097 struct uori {
2098 bool is_signed;
2099 union {
2100 uint64_t u;
2101 uint64_t i;
2102 } value;
2103 };
2104
2105 static
2106 int visit_enum_decl_entry(struct ctx *ctx, struct ctf_node *enumerator,
2107 struct ctf_field_class_enum *enum_decl, struct uori *last)
2108 {
2109 int ret = 0;
2110 int nr_vals = 0;
2111 struct ctf_node *iter;
2112 struct uori start = {
2113 .is_signed = false,
2114 .value.u = 0,
2115 };
2116 struct uori end = {
2117 .is_signed = false,
2118 .value.u = 0,
2119 };
2120 const char *label = enumerator->u.enumerator.id;
2121 const char *effective_label = label;
2122 struct bt_list_head *values = &enumerator->u.enumerator.values;
2123
2124 bt_list_for_each_entry(iter, values, siblings) {
2125 struct uori *target;
2126
2127 if (iter->type != NODE_UNARY_EXPRESSION) {
2128 _BT_COMP_LOGE_NODE(iter,
2129 "Wrong expression for enumeration field class label: "
2130 "node-type=%d, label=\"%s\"", iter->type,
2131 label);
2132 ret = -EINVAL;
2133 goto error;
2134 }
2135
2136 if (nr_vals == 0) {
2137 target = &start;
2138 } else {
2139 target = &end;
2140 }
2141
2142 switch (iter->u.unary_expression.type) {
2143 case UNARY_SIGNED_CONSTANT:
2144 target->is_signed = true;
2145 target->value.i =
2146 iter->u.unary_expression.u.signed_constant;
2147 break;
2148 case UNARY_UNSIGNED_CONSTANT:
2149 target->is_signed = false;
2150 target->value.u =
2151 iter->u.unary_expression.u.unsigned_constant;
2152 break;
2153 default:
2154 _BT_COMP_LOGE_NODE(iter,
2155 "Invalid enumeration field class entry: "
2156 "expecting constant signed or unsigned integer: "
2157 "node-type=%d, label=\"%s\"",
2158 iter->u.unary_expression.type, label);
2159 ret = -EINVAL;
2160 goto error;
2161 }
2162
2163 if (nr_vals > 1) {
2164 _BT_COMP_LOGE_NODE(iter,
2165 "Invalid enumeration field class entry: label=\"%s\"",
2166 label);
2167 ret = -EINVAL;
2168 goto error;
2169 }
2170
2171 nr_vals++;
2172 }
2173
2174 if (nr_vals == 0) {
2175 start = *last;
2176 }
2177
2178 if (nr_vals <= 1) {
2179 end = start;
2180 }
2181
2182 if (end.is_signed) {
2183 last->value.i = end.value.i + 1;
2184 } else {
2185 last->value.u = end.value.u + 1;
2186 }
2187
2188 if (label[0] == '_') {
2189 /*
2190 * Strip the first underscore of any enumeration field
2191 * class's label in case this enumeration FC is used as
2192 * a variant FC tag later. The variant FC choice names
2193 * could also start with `_`, in which case the prefix
2194 * is removed, and it the resulting choice name needs to
2195 * match tag labels.
2196 */
2197 effective_label = &label[1];
2198 }
2199
2200 ctf_field_class_enum_append_mapping(enum_decl, effective_label,
2201 start.value.u, end.value.u);
2202 return 0;
2203
2204 error:
2205 return ret;
2206 }
2207
2208 static
2209 int visit_enum_decl(struct ctx *ctx, const char *name,
2210 struct ctf_node *container_cls,
2211 struct bt_list_head *enumerator_list,
2212 int has_body, struct ctf_field_class_enum **enum_decl)
2213 {
2214 int ret = 0;
2215 GQuark qdummy_id;
2216 struct ctf_field_class_int *integer_decl = NULL;
2217
2218 BT_ASSERT(enum_decl);
2219 *enum_decl = NULL;
2220
2221 /* For named enum (without body), lookup in declaration scope */
2222 if (!has_body) {
2223 if (!name) {
2224 BT_COMP_LOGE_STR("Bodyless enumeration field class: missing name.");
2225 ret = -EPERM;
2226 goto error;
2227 }
2228
2229 *enum_decl = ctx_decl_scope_lookup_enum(ctx, ctx->current_scope,
2230 name, -1, true);
2231 if (!*enum_decl) {
2232 BT_COMP_LOGE("Cannot find enumeration field class: "
2233 "name=\"enum %s\"", name);
2234 ret = -EINVAL;
2235 goto error;
2236 }
2237 } else {
2238 struct ctf_node *iter;
2239 struct uori last_value = {
2240 .is_signed = false,
2241 .value.u = 0,
2242 };
2243
2244 if (name) {
2245 if (ctx_decl_scope_lookup_enum(ctx, ctx->current_scope,
2246 name, 1, false)) {
2247 BT_COMP_LOGE("Enumeration field class already declared in local scope: "
2248 "name=\"enum %s\"", name);
2249 ret = -EINVAL;
2250 goto error;
2251 }
2252 }
2253
2254 if (!container_cls) {
2255 integer_decl = (void *) ctx_decl_scope_lookup_alias(ctx,
2256 ctx->current_scope, "int", -1, true);
2257 if (!integer_decl) {
2258 BT_COMP_LOGE_STR("Cannot find implicit `int` field class alias for enumeration field class.");
2259 ret = -EINVAL;
2260 goto error;
2261 }
2262 } else {
2263 ret = visit_field_class_declarator(ctx, container_cls,
2264 &qdummy_id, NULL, (void *) &integer_decl,
2265 NULL);
2266 if (ret) {
2267 BT_ASSERT(!integer_decl);
2268 ret = -EINVAL;
2269 goto error;
2270 }
2271 }
2272
2273 BT_ASSERT(integer_decl);
2274
2275 if (integer_decl->base.base.type != CTF_FIELD_CLASS_TYPE_INT) {
2276 BT_COMP_LOGE("Container field class for enumeration field class is not an integer field class: "
2277 "fc-type=%d", integer_decl->base.base.type);
2278 ret = -EINVAL;
2279 goto error;
2280 }
2281
2282 *enum_decl = ctf_field_class_enum_create();
2283 BT_ASSERT(*enum_decl);
2284 (*enum_decl)->base.base.base.alignment =
2285 integer_decl->base.base.alignment;
2286 ctf_field_class_int_copy_content((void *) *enum_decl,
2287 (void *) integer_decl);
2288 last_value.is_signed = (*enum_decl)->base.is_signed;
2289
2290 bt_list_for_each_entry(iter, enumerator_list, siblings) {
2291 ret = visit_enum_decl_entry(ctx, iter, *enum_decl,
2292 &last_value);
2293 if (ret) {
2294 _BT_COMP_LOGE_NODE(iter,
2295 "Cannot visit enumeration field class entry: "
2296 "ret=%d", ret);
2297 goto error;
2298 }
2299 }
2300
2301 if (name) {
2302 ret = ctx_decl_scope_register_enum(ctx,
2303 ctx->current_scope, name, *enum_decl);
2304 if (ret) {
2305 BT_COMP_LOGE("Cannot register enumeration field class in declaration scope: "
2306 "ret=%d", ret);
2307 goto error;
2308 }
2309 }
2310 }
2311
2312 goto end;
2313
2314 error:
2315 ctf_field_class_destroy((void *) *enum_decl);
2316 *enum_decl = NULL;
2317
2318 end:
2319 ctf_field_class_destroy((void *) integer_decl);
2320 integer_decl = NULL;
2321 return ret;
2322 }
2323
2324 static
2325 int visit_field_class_specifier(struct ctx *ctx,
2326 struct ctf_node *cls_specifier_list,
2327 struct ctf_field_class **decl)
2328 {
2329 int ret = 0;
2330 GString *str = NULL;
2331
2332 *decl = NULL;
2333 str = g_string_new("");
2334 ret = get_class_specifier_list_name(ctx, cls_specifier_list, str);
2335 if (ret) {
2336 _BT_COMP_LOGE_NODE(cls_specifier_list,
2337 "Cannot get field class specifier list's name: ret=%d", ret);
2338 goto error;
2339 }
2340
2341 *decl = ctx_decl_scope_lookup_alias(ctx, ctx->current_scope, str->str,
2342 -1, true);
2343 if (!*decl) {
2344 _BT_COMP_LOGE_NODE(cls_specifier_list,
2345 "Cannot find field class alias: name=\"%s\"", str->str);
2346 ret = -EINVAL;
2347 goto error;
2348 }
2349
2350 goto end;
2351
2352 error:
2353 ctf_field_class_destroy(*decl);
2354 *decl = NULL;
2355
2356 end:
2357 if (str) {
2358 g_string_free(str, TRUE);
2359 }
2360
2361 return ret;
2362 }
2363
2364 static
2365 int visit_integer_decl(struct ctx *ctx,
2366 struct bt_list_head *expressions,
2367 struct ctf_field_class_int **integer_decl)
2368 {
2369 int set = 0;
2370 int ret = 0;
2371 int signedness = 0;
2372 struct ctf_node *expression;
2373 uint64_t alignment = 0, size = 0;
2374 struct ctf_clock_class *mapped_clock_class = NULL;
2375 enum ctf_encoding encoding = CTF_ENCODING_NONE;
2376 bt_field_class_integer_preferred_display_base base =
2377 BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL;
2378 enum ctf_byte_order byte_order = ctx->ctf_tc->default_byte_order;
2379
2380 *integer_decl = NULL;
2381
2382 bt_list_for_each_entry(expression, expressions, siblings) {
2383 struct ctf_node *left, *right;
2384
2385 left = _BT_LIST_FIRST_ENTRY(&expression->u.ctf_expression.left,
2386 struct ctf_node, siblings);
2387 right = _BT_LIST_FIRST_ENTRY(
2388 &expression->u.ctf_expression.right, struct ctf_node,
2389 siblings);
2390
2391 if (left->u.unary_expression.type != UNARY_STRING) {
2392 _BT_COMP_LOGE_NODE(left,
2393 "Unexpected unary expression type: type=%d",
2394 left->u.unary_expression.type);
2395 ret = -EINVAL;
2396 goto error;
2397 }
2398
2399 if (!strcmp(left->u.unary_expression.u.string, "signed")) {
2400 if (_IS_SET(&set, _INTEGER_SIGNED_SET)) {
2401 _BT_COMP_LOGE_DUP_ATTR(left, "signed",
2402 "integer field class");
2403 ret = -EPERM;
2404 goto error;
2405 }
2406
2407 signedness = get_boolean(ctx, right);
2408 if (signedness < 0) {
2409 _BT_COMP_LOGE_NODE(right,
2410 "Invalid boolean value for integer field class's `signed` attribute: "
2411 "ret=%d", ret);
2412 ret = -EINVAL;
2413 goto error;
2414 }
2415
2416 _SET(&set, _INTEGER_SIGNED_SET);
2417 } else if (!strcmp(left->u.unary_expression.u.string,
2418 "byte_order")) {
2419 if (_IS_SET(&set, _INTEGER_BYTE_ORDER_SET)) {
2420 _BT_COMP_LOGE_DUP_ATTR(left, "byte_order",
2421 "integer field class");
2422 ret = -EPERM;
2423 goto error;
2424 }
2425
2426 byte_order = get_real_byte_order(ctx, right);
2427 if (byte_order == -1) {
2428 _BT_COMP_LOGE_NODE(right,
2429 "Invalid `byte_order` attribute in integer field class: "
2430 "ret=%d", ret);
2431 ret = -EINVAL;
2432 goto error;
2433 }
2434
2435 _SET(&set, _INTEGER_BYTE_ORDER_SET);
2436 } else if (!strcmp(left->u.unary_expression.u.string, "size")) {
2437 if (_IS_SET(&set, _INTEGER_SIZE_SET)) {
2438 _BT_COMP_LOGE_DUP_ATTR(left, "size",
2439 "integer field class");
2440 ret = -EPERM;
2441 goto error;
2442 }
2443
2444 if (right->u.unary_expression.type !=
2445 UNARY_UNSIGNED_CONSTANT) {
2446 _BT_COMP_LOGE_NODE(right,
2447 "Invalid `size` attribute in integer field class: "
2448 "expecting unsigned constant integer: "
2449 "node-type=%d",
2450 right->u.unary_expression.type);
2451 ret = -EINVAL;
2452 goto error;
2453 }
2454
2455 size = right->u.unary_expression.u.unsigned_constant;
2456 if (size == 0) {
2457 _BT_COMP_LOGE_NODE(right,
2458 "Invalid `size` attribute in integer field class: "
2459 "expecting positive constant integer: "
2460 "size=%" PRIu64, size);
2461 ret = -EINVAL;
2462 goto error;
2463 } else if (size > 64) {
2464 _BT_COMP_LOGE_NODE(right,
2465 "Invalid `size` attribute in integer field class: "
2466 "integer fields over 64 bits are not supported as of this version: "
2467 "size=%" PRIu64, size);
2468 ret = -EINVAL;
2469 goto error;
2470 }
2471
2472 _SET(&set, _INTEGER_SIZE_SET);
2473 } else if (!strcmp(left->u.unary_expression.u.string,
2474 "align")) {
2475 if (_IS_SET(&set, _INTEGER_ALIGN_SET)) {
2476 _BT_COMP_LOGE_DUP_ATTR(left, "align",
2477 "integer field class");
2478 ret = -EPERM;
2479 goto error;
2480 }
2481
2482 if (right->u.unary_expression.type !=
2483 UNARY_UNSIGNED_CONSTANT) {
2484 _BT_COMP_LOGE_NODE(right,
2485 "Invalid `align` attribute in integer field class: "
2486 "expecting unsigned constant integer: "
2487 "node-type=%d",
2488 right->u.unary_expression.type);
2489 ret = -EINVAL;
2490 goto error;
2491 }
2492
2493 alignment =
2494 right->u.unary_expression.u.unsigned_constant;
2495 if (!is_align_valid(alignment)) {
2496 _BT_COMP_LOGE_NODE(right,
2497 "Invalid `align` attribute in integer field class: "
2498 "expecting power of two: "
2499 "align=%" PRIu64, alignment);
2500 ret = -EINVAL;
2501 goto error;
2502 }
2503
2504 _SET(&set, _INTEGER_ALIGN_SET);
2505 } else if (!strcmp(left->u.unary_expression.u.string, "base")) {
2506 if (_IS_SET(&set, _INTEGER_BASE_SET)) {
2507 _BT_COMP_LOGE_DUP_ATTR(left, "base",
2508 "integer field class");
2509 ret = -EPERM;
2510 goto error;
2511 }
2512
2513 switch (right->u.unary_expression.type) {
2514 case UNARY_UNSIGNED_CONSTANT:
2515 {
2516 uint64_t constant = right->u.unary_expression.
2517 u.unsigned_constant;
2518
2519 switch (constant) {
2520 case 2:
2521 base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_BINARY;
2522 break;
2523 case 8:
2524 base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_OCTAL;
2525 break;
2526 case 10:
2527 base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL;
2528 break;
2529 case 16:
2530 base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL;
2531 break;
2532 default:
2533 _BT_COMP_LOGE_NODE(right,
2534 "Invalid `base` attribute in integer field class: "
2535 "base=%" PRIu64,
2536 right->u.unary_expression.u.unsigned_constant);
2537 ret = -EINVAL;
2538 goto error;
2539 }
2540 break;
2541 }
2542 case UNARY_STRING:
2543 {
2544 char *s_right = concatenate_unary_strings(
2545 &expression->u.ctf_expression.right);
2546 if (!s_right) {
2547 _BT_COMP_LOGE_NODE(right,
2548 "Unexpected unary expression for integer field class's `base` attribute.");
2549 ret = -EINVAL;
2550 goto error;
2551 }
2552
2553 if (!strcmp(s_right, "decimal") ||
2554 !strcmp(s_right, "dec") ||
2555 !strcmp(s_right, "d") ||
2556 !strcmp(s_right, "i") ||
2557 !strcmp(s_right, "u")) {
2558 base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL;
2559 } else if (!strcmp(s_right, "hexadecimal") ||
2560 !strcmp(s_right, "hex") ||
2561 !strcmp(s_right, "x") ||
2562 !strcmp(s_right, "X") ||
2563 !strcmp(s_right, "p")) {
2564 base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL;
2565 } else if (!strcmp(s_right, "octal") ||
2566 !strcmp(s_right, "oct") ||
2567 !strcmp(s_right, "o")) {
2568 base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_OCTAL;
2569 } else if (!strcmp(s_right, "binary") ||
2570 !strcmp(s_right, "b")) {
2571 base = BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_BINARY;
2572 } else {
2573 _BT_COMP_LOGE_NODE(right,
2574 "Unexpected unary expression for integer field class's `base` attribute: "
2575 "base=\"%s\"", s_right);
2576 g_free(s_right);
2577 ret = -EINVAL;
2578 goto error;
2579 }
2580
2581 g_free(s_right);
2582 break;
2583 }
2584 default:
2585 _BT_COMP_LOGE_NODE(right,
2586 "Invalid `base` attribute in integer field class: "
2587 "expecting unsigned constant integer or unary string.");
2588 ret = -EINVAL;
2589 goto error;
2590 }
2591
2592 _SET(&set, _INTEGER_BASE_SET);
2593 } else if (!strcmp(left->u.unary_expression.u.string,
2594 "encoding")) {
2595 char *s_right;
2596
2597 if (_IS_SET(&set, _INTEGER_ENCODING_SET)) {
2598 _BT_COMP_LOGE_DUP_ATTR(left, "encoding",
2599 "integer field class");
2600 ret = -EPERM;
2601 goto error;
2602 }
2603
2604 if (right->u.unary_expression.type != UNARY_STRING) {
2605 _BT_COMP_LOGE_NODE(right,
2606 "Invalid `encoding` attribute in integer field class: "
2607 "expecting unary string.");
2608 ret = -EINVAL;
2609 goto error;
2610 }
2611
2612 s_right = concatenate_unary_strings(
2613 &expression->u.ctf_expression.right);
2614 if (!s_right) {
2615 _BT_COMP_LOGE_NODE(right,
2616 "Unexpected unary expression for integer field class's `encoding` attribute.");
2617 ret = -EINVAL;
2618 goto error;
2619 }
2620
2621 if (!strcmp(s_right, "UTF8") ||
2622 !strcmp(s_right, "utf8") ||
2623 !strcmp(s_right, "utf-8") ||
2624 !strcmp(s_right, "UTF-8") ||
2625 !strcmp(s_right, "ASCII") ||
2626 !strcmp(s_right, "ascii")) {
2627 encoding = CTF_ENCODING_UTF8;
2628 } else if (!strcmp(s_right, "none")) {
2629 encoding = CTF_ENCODING_NONE;
2630 } else {
2631 _BT_COMP_LOGE_NODE(right,
2632 "Invalid `encoding` attribute in integer field class: "
2633 "unknown encoding: encoding=\"%s\"",
2634 s_right);
2635 g_free(s_right);
2636 ret = -EINVAL;
2637 goto error;
2638 }
2639
2640 g_free(s_right);
2641 _SET(&set, _INTEGER_ENCODING_SET);
2642 } else if (!strcmp(left->u.unary_expression.u.string, "map")) {
2643 const char *clock_name;
2644
2645 if (_IS_SET(&set, _INTEGER_MAP_SET)) {
2646 _BT_COMP_LOGE_DUP_ATTR(left, "map",
2647 "integer field class");
2648 ret = -EPERM;
2649 goto error;
2650 }
2651
2652 if (right->u.unary_expression.type != UNARY_STRING) {
2653 _BT_COMP_LOGE_NODE(right,
2654 "Invalid `map` attribute in integer field class: "
2655 "expecting unary string.");
2656 ret = -EINVAL;
2657 goto error;
2658 }
2659
2660 clock_name =
2661 get_map_clock_name_value(
2662 &expression->u.ctf_expression.right);
2663 if (!clock_name) {
2664 char *s_right = concatenate_unary_strings(
2665 &expression->u.ctf_expression.right);
2666
2667 if (!s_right) {
2668 _BT_COMP_LOGE_NODE(right,
2669 "Unexpected unary expression for integer field class's `map` attribute.");
2670 ret = -EINVAL;
2671 goto error;
2672 }
2673
2674 _BT_COMP_LOGE_NODE(right,
2675 "Invalid `map` attribute in integer field class: "
2676 "cannot find clock class at this point: name=\"%s\"",
2677 s_right);
2678 _SET(&set, _INTEGER_MAP_SET);
2679 g_free(s_right);
2680 continue;
2681 }
2682
2683 mapped_clock_class =
2684 ctf_trace_class_borrow_clock_class_by_name(
2685 ctx->ctf_tc, clock_name);
2686 if (!mapped_clock_class) {
2687 _BT_COMP_LOGE_NODE(right,
2688 "Invalid `map` attribute in integer field class: "
2689 "cannot find clock class at this point: name=\"%s\"",
2690 clock_name);
2691 ret = -EINVAL;
2692 goto error;
2693 }
2694
2695 _SET(&set, _INTEGER_MAP_SET);
2696 } else {
2697 _BT_COMP_LOGW_NODE(left,
2698 "Unknown attribute in integer field class: "
2699 "attr-name=\"%s\"",
2700 left->u.unary_expression.u.string);
2701 }
2702 }
2703
2704 if (!_IS_SET(&set, _INTEGER_SIZE_SET)) {
2705 BT_COMP_LOGE_STR("Missing `size` attribute in integer field class.");
2706 ret = -EPERM;
2707 goto error;
2708 }
2709
2710 if (!_IS_SET(&set, _INTEGER_ALIGN_SET)) {
2711 if (size % CHAR_BIT) {
2712 /* Bit-packed alignment */
2713 alignment = 1;
2714 } else {
2715 /* Byte-packed alignment */
2716 alignment = CHAR_BIT;
2717 }
2718 }
2719
2720 *integer_decl = ctf_field_class_int_create();
2721 BT_ASSERT(*integer_decl);
2722 (*integer_decl)->base.base.alignment = alignment;
2723 (*integer_decl)->base.byte_order = byte_order;
2724 (*integer_decl)->base.size = size;
2725 (*integer_decl)->is_signed = (signedness > 0);
2726 (*integer_decl)->disp_base = base;
2727 (*integer_decl)->encoding = encoding;
2728 (*integer_decl)->mapped_clock_class = mapped_clock_class;
2729 return 0;
2730
2731 error:
2732 ctf_field_class_destroy((void *) *integer_decl);
2733 *integer_decl = NULL;
2734 return ret;
2735 }
2736
2737 static
2738 int visit_floating_point_number_decl(struct ctx *ctx,
2739 struct bt_list_head *expressions,
2740 struct ctf_field_class_float **float_decl)
2741 {
2742 int set = 0;
2743 int ret = 0;
2744 struct ctf_node *expression;
2745 uint64_t alignment = 1, exp_dig = 0, mant_dig = 0;
2746 enum ctf_byte_order byte_order = ctx->ctf_tc->default_byte_order;
2747
2748 *float_decl = NULL;
2749
2750 bt_list_for_each_entry(expression, expressions, siblings) {
2751 struct ctf_node *left, *right;
2752
2753 left = _BT_LIST_FIRST_ENTRY(&expression->u.ctf_expression.left,
2754 struct ctf_node, siblings);
2755 right = _BT_LIST_FIRST_ENTRY(
2756 &expression->u.ctf_expression.right, struct ctf_node,
2757 siblings);
2758
2759 if (left->u.unary_expression.type != UNARY_STRING) {
2760 _BT_COMP_LOGE_NODE(left,
2761 "Unexpected unary expression type: type=%d",
2762 left->u.unary_expression.type);
2763 ret = -EINVAL;
2764 goto error;
2765 }
2766
2767 if (!strcmp(left->u.unary_expression.u.string, "byte_order")) {
2768 if (_IS_SET(&set, _FLOAT_BYTE_ORDER_SET)) {
2769 _BT_COMP_LOGE_DUP_ATTR(left, "byte_order",
2770 "floating point number field class");
2771 ret = -EPERM;
2772 goto error;
2773 }
2774
2775 byte_order = get_real_byte_order(ctx, right);
2776 if (byte_order == -1) {
2777 _BT_COMP_LOGE_NODE(right,
2778 "Invalid `byte_order` attribute in floating point number field class: "
2779 "ret=%d", ret);
2780 ret = -EINVAL;
2781 goto error;
2782 }
2783
2784 _SET(&set, _FLOAT_BYTE_ORDER_SET);
2785 } else if (!strcmp(left->u.unary_expression.u.string,
2786 "exp_dig")) {
2787 if (_IS_SET(&set, _FLOAT_EXP_DIG_SET)) {
2788 _BT_COMP_LOGE_DUP_ATTR(left, "exp_dig",
2789 "floating point number field class");
2790 ret = -EPERM;
2791 goto error;
2792 }
2793
2794 if (right->u.unary_expression.type !=
2795 UNARY_UNSIGNED_CONSTANT) {
2796 _BT_COMP_LOGE_NODE(right,
2797 "Invalid `exp_dig` attribute in floating point number field class: "
2798 "expecting unsigned constant integer: "
2799 "node-type=%d",
2800 right->u.unary_expression.type);
2801 ret = -EINVAL;
2802 goto error;
2803 }
2804
2805 exp_dig = right->u.unary_expression.u.unsigned_constant;
2806 _SET(&set, _FLOAT_EXP_DIG_SET);
2807 } else if (!strcmp(left->u.unary_expression.u.string,
2808 "mant_dig")) {
2809 if (_IS_SET(&set, _FLOAT_MANT_DIG_SET)) {
2810 _BT_COMP_LOGE_DUP_ATTR(left, "mant_dig",
2811 "floating point number field class");
2812 ret = -EPERM;
2813 goto error;
2814 }
2815
2816 if (right->u.unary_expression.type !=
2817 UNARY_UNSIGNED_CONSTANT) {
2818 _BT_COMP_LOGE_NODE(right,
2819 "Invalid `mant_dig` attribute in floating point number field class: "
2820 "expecting unsigned constant integer: "
2821 "node-type=%d",
2822 right->u.unary_expression.type);
2823 ret = -EINVAL;
2824 goto error;
2825 }
2826
2827 mant_dig = right->u.unary_expression.u.
2828 unsigned_constant;
2829 _SET(&set, _FLOAT_MANT_DIG_SET);
2830 } else if (!strcmp(left->u.unary_expression.u.string,
2831 "align")) {
2832 if (_IS_SET(&set, _FLOAT_ALIGN_SET)) {
2833 _BT_COMP_LOGE_DUP_ATTR(left, "align",
2834 "floating point number field class");
2835 ret = -EPERM;
2836 goto error;
2837 }
2838
2839 if (right->u.unary_expression.type !=
2840 UNARY_UNSIGNED_CONSTANT) {
2841 _BT_COMP_LOGE_NODE(right,
2842 "Invalid `align` attribute in floating point number field class: "
2843 "expecting unsigned constant integer: "
2844 "node-type=%d",
2845 right->u.unary_expression.type);
2846 ret = -EINVAL;
2847 goto error;
2848 }
2849
2850 alignment = right->u.unary_expression.u.
2851 unsigned_constant;
2852
2853 if (!is_align_valid(alignment)) {
2854 _BT_COMP_LOGE_NODE(right,
2855 "Invalid `align` attribute in floating point number field class: "
2856 "expecting power of two: "
2857 "align=%" PRIu64, alignment);
2858 ret = -EINVAL;
2859 goto error;
2860 }
2861
2862 _SET(&set, _FLOAT_ALIGN_SET);
2863 } else {
2864 _BT_COMP_LOGW_NODE(left,
2865 "Unknown attribute in floating point number field class: "
2866 "attr-name=\"%s\"",
2867 left->u.unary_expression.u.string);
2868 }
2869 }
2870
2871 if (!_IS_SET(&set, _FLOAT_MANT_DIG_SET)) {
2872 BT_COMP_LOGE_STR("Missing `mant_dig` attribute in floating point number field class.");
2873 ret = -EPERM;
2874 goto error;
2875 }
2876
2877 if (!_IS_SET(&set, _FLOAT_EXP_DIG_SET)) {
2878 BT_COMP_LOGE_STR("Missing `exp_dig` attribute in floating point number field class.");
2879 ret = -EPERM;
2880 goto error;
2881 }
2882
2883 if (mant_dig != 24 && mant_dig != 53) {
2884 BT_COMP_LOGE_STR("`mant_dig` attribute: expecting 24 or 53.");
2885 ret = -EPERM;
2886 goto error;
2887 }
2888
2889 if (mant_dig == 24 && exp_dig != 8) {
2890 BT_COMP_LOGE_STR("`exp_dig` attribute: expecting 8 because `mant_dig` is 24.");
2891 ret = -EPERM;
2892 goto error;
2893 }
2894
2895 if (mant_dig == 53 && exp_dig != 11) {
2896 BT_COMP_LOGE_STR("`exp_dig` attribute: expecting 11 because `mant_dig` is 53.");
2897 ret = -EPERM;
2898 goto error;
2899 }
2900
2901 if (!_IS_SET(&set, _INTEGER_ALIGN_SET)) {
2902 if ((mant_dig + exp_dig) % CHAR_BIT) {
2903 /* Bit-packed alignment */
2904 alignment = 1;
2905 } else {
2906 /* Byte-packed alignment */
2907 alignment = CHAR_BIT;
2908 }
2909 }
2910
2911 *float_decl = ctf_field_class_float_create();
2912 BT_ASSERT(*float_decl);
2913 (*float_decl)->base.base.alignment = alignment;
2914 (*float_decl)->base.byte_order = byte_order;
2915 (*float_decl)->base.size = mant_dig + exp_dig;
2916 return 0;
2917
2918 error:
2919 ctf_field_class_destroy((void *) *float_decl);
2920 *float_decl = NULL;
2921 return ret;
2922 }
2923
2924 static
2925 int visit_string_decl(struct ctx *ctx,
2926 struct bt_list_head *expressions,
2927 struct ctf_field_class_string **string_decl)
2928 {
2929 int set = 0;
2930 int ret = 0;
2931 struct ctf_node *expression;
2932 enum ctf_encoding encoding = CTF_ENCODING_UTF8;
2933
2934 *string_decl = NULL;
2935
2936 bt_list_for_each_entry(expression, expressions, siblings) {
2937 struct ctf_node *left, *right;
2938
2939 left = _BT_LIST_FIRST_ENTRY(&expression->u.ctf_expression.left,
2940 struct ctf_node, siblings);
2941 right = _BT_LIST_FIRST_ENTRY(
2942 &expression->u.ctf_expression.right, struct ctf_node,
2943 siblings);
2944
2945 if (left->u.unary_expression.type != UNARY_STRING) {
2946 _BT_COMP_LOGE_NODE(left,
2947 "Unexpected unary expression type: type=%d",
2948 left->u.unary_expression.type);
2949 ret = -EINVAL;
2950 goto error;
2951 }
2952
2953 if (!strcmp(left->u.unary_expression.u.string, "encoding")) {
2954 char *s_right;
2955
2956 if (_IS_SET(&set, _STRING_ENCODING_SET)) {
2957 _BT_COMP_LOGE_DUP_ATTR(left, "encoding",
2958 "string field class");
2959 ret = -EPERM;
2960 goto error;
2961 }
2962
2963 if (right->u.unary_expression.type != UNARY_STRING) {
2964 _BT_COMP_LOGE_NODE(right,
2965 "Invalid `encoding` attribute in string field class: "
2966 "expecting unary string.");
2967 ret = -EINVAL;
2968 goto error;
2969 }
2970
2971 s_right = concatenate_unary_strings(
2972 &expression->u.ctf_expression.right);
2973 if (!s_right) {
2974 _BT_COMP_LOGE_NODE(right,
2975 "Unexpected unary expression for string field class's `encoding` attribute.");
2976 ret = -EINVAL;
2977 goto error;
2978 }
2979
2980 if (!strcmp(s_right, "UTF8") ||
2981 !strcmp(s_right, "utf8") ||
2982 !strcmp(s_right, "utf-8") ||
2983 !strcmp(s_right, "UTF-8") ||
2984 !strcmp(s_right, "ASCII") ||
2985 !strcmp(s_right, "ascii")) {
2986 encoding = CTF_ENCODING_UTF8;
2987 } else if (!strcmp(s_right, "none")) {
2988 encoding = CTF_ENCODING_NONE;
2989 } else {
2990 _BT_COMP_LOGE_NODE(right,
2991 "Invalid `encoding` attribute in string field class: "
2992 "unknown encoding: encoding=\"%s\"",
2993 s_right);
2994 g_free(s_right);
2995 ret = -EINVAL;
2996 goto error;
2997 }
2998
2999 g_free(s_right);
3000 _SET(&set, _STRING_ENCODING_SET);
3001 } else {
3002 _BT_COMP_LOGW_NODE(left,
3003 "Unknown attribute in string field class: "
3004 "attr-name=\"%s\"",
3005 left->u.unary_expression.u.string);
3006 }
3007 }
3008
3009 *string_decl = ctf_field_class_string_create();
3010 BT_ASSERT(*string_decl);
3011 (*string_decl)->encoding = encoding;
3012 return 0;
3013
3014 error:
3015 ctf_field_class_destroy((void *) *string_decl);
3016 *string_decl = NULL;
3017 return ret;
3018 }
3019
3020 static
3021 int visit_field_class_specifier_list(struct ctx *ctx,
3022 struct ctf_node *ts_list, struct ctf_field_class **decl)
3023 {
3024 int ret = 0;
3025 struct ctf_node *first, *node;
3026
3027 *decl = NULL;
3028
3029 if (ts_list->type != NODE_TYPE_SPECIFIER_LIST) {
3030 _BT_COMP_LOGE_NODE(ts_list,
3031 "Unexpected node type: node-type=%d", ts_list->type);
3032 ret = -EINVAL;
3033 goto error;
3034 }
3035
3036 first = _BT_LIST_FIRST_ENTRY(&ts_list->u.field_class_specifier_list.head,
3037 struct ctf_node, siblings);
3038 if (first->type != NODE_TYPE_SPECIFIER) {
3039 _BT_COMP_LOGE_NODE(first,
3040 "Unexpected node type: node-type=%d", first->type);
3041 ret = -EINVAL;
3042 goto error;
3043 }
3044
3045 node = first->u.field_class_specifier.node;
3046
3047 switch (first->u.field_class_specifier.type) {
3048 case TYPESPEC_INTEGER:
3049 ret = visit_integer_decl(ctx, &node->u.integer.expressions,
3050 (void *) decl);
3051 if (ret) {
3052 BT_ASSERT(!*decl);
3053 goto error;
3054 }
3055 break;
3056 case TYPESPEC_FLOATING_POINT:
3057 ret = visit_floating_point_number_decl(ctx,
3058 &node->u.floating_point.expressions, (void *) decl);
3059 if (ret) {
3060 BT_ASSERT(!*decl);
3061 goto error;
3062 }
3063 break;
3064 case TYPESPEC_STRING:
3065 ret = visit_string_decl(ctx,
3066 &node->u.string.expressions, (void *) decl);
3067 if (ret) {
3068 BT_ASSERT(!*decl);
3069 goto error;
3070 }
3071 break;
3072 case TYPESPEC_STRUCT:
3073 ret = visit_struct_decl(ctx, node->u._struct.name,
3074 &node->u._struct.declaration_list,
3075 node->u._struct.has_body,
3076 &node->u._struct.min_align, (void *) decl);
3077 if (ret) {
3078 BT_ASSERT(!*decl);
3079 goto error;
3080 }
3081 break;
3082 case TYPESPEC_VARIANT:
3083 ret = visit_variant_decl(ctx, node->u.variant.name,
3084 node->u.variant.choice,
3085 &node->u.variant.declaration_list,
3086 node->u.variant.has_body, (void *) decl);
3087 if (ret) {
3088 BT_ASSERT(!*decl);
3089 goto error;
3090 }
3091 break;
3092 case TYPESPEC_ENUM:
3093 ret = visit_enum_decl(ctx, node->u._enum.enum_id,
3094 node->u._enum.container_field_class,
3095 &node->u._enum.enumerator_list,
3096 node->u._enum.has_body, (void *) decl);
3097 if (ret) {
3098 BT_ASSERT(!*decl);
3099 goto error;
3100 }
3101 break;
3102 case TYPESPEC_VOID:
3103 case TYPESPEC_CHAR:
3104 case TYPESPEC_SHORT:
3105 case TYPESPEC_INT:
3106 case TYPESPEC_LONG:
3107 case TYPESPEC_FLOAT:
3108 case TYPESPEC_DOUBLE:
3109 case TYPESPEC_SIGNED:
3110 case TYPESPEC_UNSIGNED:
3111 case TYPESPEC_BOOL:
3112 case TYPESPEC_COMPLEX:
3113 case TYPESPEC_IMAGINARY:
3114 case TYPESPEC_CONST:
3115 case TYPESPEC_ID_TYPE:
3116 ret = visit_field_class_specifier(ctx, ts_list, decl);
3117 if (ret) {
3118 _BT_COMP_LOGE_NODE(first,
3119 "Cannot visit field class specifier: ret=%d",
3120 ret);
3121 BT_ASSERT(!*decl);
3122 goto error;
3123 }
3124 break;
3125 default:
3126 _BT_COMP_LOGE_NODE(first,
3127 "Unexpected field class specifier type: node-type=%d",
3128 first->u.field_class_specifier.type);
3129 ret = -EINVAL;
3130 goto error;
3131 }
3132
3133 BT_ASSERT(*decl);
3134 return 0;
3135
3136 error:
3137 ctf_field_class_destroy((void *) *decl);
3138 *decl = NULL;
3139 return ret;
3140 }
3141
3142 static
3143 int visit_event_decl_entry(struct ctx *ctx, struct ctf_node *node,
3144 struct ctf_event_class *event_class, uint64_t *stream_id,
3145 int *set)
3146 {
3147 int ret = 0;
3148 char *left = NULL;
3149
3150 switch (node->type) {
3151 case NODE_TYPEDEF:
3152 ret = visit_field_class_def(ctx, node->u.field_class_def.field_class_specifier_list,
3153 &node->u.field_class_def.field_class_declarators);
3154 if (ret) {
3155 _BT_COMP_LOGE_NODE(node,
3156 "Cannot add field class found in event class.");
3157 goto error;
3158 }
3159 break;
3160 case NODE_TYPEALIAS:
3161 ret = visit_field_class_alias(ctx, node->u.field_class_alias.target,
3162 node->u.field_class_alias.alias);
3163 if (ret) {
3164 _BT_COMP_LOGE_NODE(node,
3165 "Cannot add field class alias found in event class.");
3166 goto error;
3167 }
3168 break;
3169 case NODE_CTF_EXPRESSION:
3170 {
3171 left = concatenate_unary_strings(&node->u.ctf_expression.left);
3172 if (!left) {
3173 _BT_COMP_LOGE_NODE(node, "Cannot concatenate unary strings.");
3174 ret = -EINVAL;
3175 goto error;
3176 }
3177
3178 if (!strcmp(left, "name")) {
3179 /* This is already known at this stage */
3180 if (_IS_SET(set, _EVENT_NAME_SET)) {
3181 _BT_COMP_LOGE_DUP_ATTR(node, "name", "event class");
3182 ret = -EPERM;
3183 goto error;
3184 }
3185
3186 _SET(set, _EVENT_NAME_SET);
3187 } else if (!strcmp(left, "id")) {
3188 int64_t id = -1;
3189
3190 if (_IS_SET(set, _EVENT_ID_SET)) {
3191 _BT_COMP_LOGE_DUP_ATTR(node, "id", "event class");
3192 ret = -EPERM;
3193 goto error;
3194 }
3195
3196 ret = get_unary_unsigned(ctx,
3197 &node->u.ctf_expression.right,
3198 (uint64_t *) &id);
3199 /* Only read "id" if get_unary_unsigned() succeeded. */
3200 if (ret || (!ret && id < 0)) {
3201 _BT_COMP_LOGE_NODE(node,
3202 "Unexpected unary expression for event class's `id` attribute.");
3203 ret = -EINVAL;
3204 goto error;
3205 }
3206
3207 event_class->id = id;
3208 _SET(set, _EVENT_ID_SET);
3209 } else if (!strcmp(left, "stream_id")) {
3210 if (_IS_SET(set, _EVENT_STREAM_ID_SET)) {
3211 _BT_COMP_LOGE_DUP_ATTR(node, "stream_id",
3212 "event class");
3213 ret = -EPERM;
3214 goto error;
3215 }
3216
3217 ret = get_unary_unsigned(ctx,
3218 &node->u.ctf_expression.right, stream_id);
3219
3220 /*
3221 * Only read "stream_id" if get_unary_unsigned()
3222 * succeeded.
3223 */
3224 if (ret) {
3225 _BT_COMP_LOGE_NODE(node,
3226 "Unexpected unary expression for event class's `stream_id` attribute.");
3227 ret = -EINVAL;
3228 goto error;
3229 }
3230
3231 _SET(set, _EVENT_STREAM_ID_SET);
3232 } else if (!strcmp(left, "context")) {
3233 if (_IS_SET(set, _EVENT_CONTEXT_SET)) {
3234 _BT_COMP_LOGE_NODE(node,
3235 "Duplicate `context` entry in event class.");
3236 ret = -EPERM;
3237 goto error;
3238 }
3239
3240 ret = visit_field_class_specifier_list(ctx,
3241 _BT_LIST_FIRST_ENTRY(
3242 &node->u.ctf_expression.right,
3243 struct ctf_node, siblings),
3244 &event_class->spec_context_fc);
3245 if (ret) {
3246 _BT_COMP_LOGE_NODE(node,
3247 "Cannot create event class's context field class.");
3248 goto error;
3249 }
3250
3251 BT_ASSERT(event_class->spec_context_fc);
3252 _SET(set, _EVENT_CONTEXT_SET);
3253 } else if (!strcmp(left, "fields")) {
3254 if (_IS_SET(set, _EVENT_FIELDS_SET)) {
3255 _BT_COMP_LOGE_NODE(node,
3256 "Duplicate `fields` entry in event class.");
3257 ret = -EPERM;
3258 goto error;
3259 }
3260
3261 ret = visit_field_class_specifier_list(ctx,
3262 _BT_LIST_FIRST_ENTRY(
3263 &node->u.ctf_expression.right,
3264 struct ctf_node, siblings),
3265 &event_class->payload_fc);
3266 if (ret) {
3267 _BT_COMP_LOGE_NODE(node,
3268 "Cannot create event class's payload field class.");
3269 goto error;
3270 }
3271
3272 BT_ASSERT(event_class->payload_fc);
3273 _SET(set, _EVENT_FIELDS_SET);
3274 } else if (!strcmp(left, "loglevel")) {
3275 uint64_t loglevel_value;
3276 bt_event_class_log_level log_level = -1;
3277
3278 if (_IS_SET(set, _EVENT_LOG_LEVEL_SET)) {
3279 _BT_COMP_LOGE_DUP_ATTR(node, "loglevel",
3280 "event class");
3281 ret = -EPERM;
3282 goto error;
3283 }
3284
3285 ret = get_unary_unsigned(ctx,
3286 &node->u.ctf_expression.right, &loglevel_value);
3287 if (ret) {
3288 _BT_COMP_LOGE_NODE(node,
3289 "Unexpected unary expression for event class's `loglevel` attribute.");
3290 ret = -EINVAL;
3291 goto error;
3292 }
3293
3294 switch (loglevel_value) {
3295 case 0:
3296 log_level = BT_EVENT_CLASS_LOG_LEVEL_EMERGENCY;
3297 break;
3298 case 1:
3299 log_level = BT_EVENT_CLASS_LOG_LEVEL_ALERT;
3300 break;
3301 case 2:
3302 log_level = BT_EVENT_CLASS_LOG_LEVEL_CRITICAL;
3303 break;
3304 case 3:
3305 log_level = BT_EVENT_CLASS_LOG_LEVEL_ERROR;
3306 break;
3307 case 4:
3308 log_level = BT_EVENT_CLASS_LOG_LEVEL_WARNING;
3309 break;
3310 case 5:
3311 log_level = BT_EVENT_CLASS_LOG_LEVEL_NOTICE;
3312 break;
3313 case 6:
3314 log_level = BT_EVENT_CLASS_LOG_LEVEL_INFO;
3315 break;
3316 case 7:
3317 log_level = BT_EVENT_CLASS_LOG_LEVEL_DEBUG_SYSTEM;
3318 break;
3319 case 8:
3320 log_level = BT_EVENT_CLASS_LOG_LEVEL_DEBUG_PROGRAM;
3321 break;
3322 case 9:
3323 log_level = BT_EVENT_CLASS_LOG_LEVEL_DEBUG_PROCESS;
3324 break;
3325 case 10:
3326 log_level = BT_EVENT_CLASS_LOG_LEVEL_DEBUG_MODULE;
3327 break;
3328 case 11:
3329 log_level = BT_EVENT_CLASS_LOG_LEVEL_DEBUG_UNIT;
3330 break;
3331 case 12:
3332 log_level = BT_EVENT_CLASS_LOG_LEVEL_DEBUG_FUNCTION;
3333 break;
3334 case 13:
3335 log_level = BT_EVENT_CLASS_LOG_LEVEL_DEBUG_LINE;
3336 break;
3337 case 14:
3338 log_level = BT_EVENT_CLASS_LOG_LEVEL_DEBUG;
3339 break;
3340 default:
3341 _BT_COMP_LOGW_NODE(node, "Not setting event class's log level because its value is unknown: "
3342 "log-level=%" PRIu64, loglevel_value);
3343 }
3344
3345 if (log_level != -1) {
3346 event_class->log_level = log_level;
3347 }
3348
3349 _SET(set, _EVENT_LOG_LEVEL_SET);
3350 } else if (!strcmp(left, "model.emf.uri")) {
3351 char *right;
3352
3353 if (_IS_SET(set, _EVENT_MODEL_EMF_URI_SET)) {
3354 _BT_COMP_LOGE_DUP_ATTR(node, "model.emf.uri",
3355 "event class");
3356 ret = -EPERM;
3357 goto error;
3358 }
3359
3360 right = concatenate_unary_strings(
3361 &node->u.ctf_expression.right);
3362 if (!right) {
3363 _BT_COMP_LOGE_NODE(node,
3364 "Unexpected unary expression for event class's `model.emf.uri` attribute.");
3365 ret = -EINVAL;
3366 goto error;
3367 }
3368
3369 if (strlen(right) == 0) {
3370 _BT_COMP_LOGW_NODE(node,
3371 "Not setting event class's EMF URI because it's empty.");
3372 } else {
3373 g_string_assign(event_class->emf_uri,
3374 right);
3375 }
3376
3377 g_free(right);
3378 _SET(set, _EVENT_MODEL_EMF_URI_SET);
3379 } else {
3380 _BT_COMP_LOGW_NODE(node,
3381 "Unknown attribute in event class: "
3382 "attr-name=\"%s\"", left);
3383 }
3384
3385 g_free(left);
3386 left = NULL;
3387 break;
3388 }
3389 default:
3390 ret = -EPERM;
3391 goto error;
3392 }
3393
3394 goto end;
3395
3396 error:
3397 g_free(left);
3398
3399 end:
3400 return ret;
3401 }
3402
3403 static
3404 char *get_event_decl_name(struct ctx *ctx, struct ctf_node *node)
3405 {
3406 char *left = NULL;
3407 char *name = NULL;
3408 struct ctf_node *iter;
3409 struct bt_list_head *decl_list = &node->u.event.declaration_list;
3410
3411 bt_list_for_each_entry(iter, decl_list, siblings) {
3412 if (iter->type != NODE_CTF_EXPRESSION) {
3413 continue;
3414 }
3415
3416 left = concatenate_unary_strings(&iter->u.ctf_expression.left);
3417 if (!left) {
3418 _BT_COMP_LOGE_NODE(iter,
3419 "Cannot concatenate unary strings.");
3420 goto error;
3421 }
3422
3423 if (!strcmp(left, "name")) {
3424 name = concatenate_unary_strings(
3425 &iter->u.ctf_expression.right);
3426 if (!name) {
3427 _BT_COMP_LOGE_NODE(iter,
3428 "Unexpected unary expression for event class's `name` attribute.");
3429 goto error;
3430 }
3431 }
3432
3433 g_free(left);
3434 left = NULL;
3435
3436 if (name) {
3437 break;
3438 }
3439 }
3440
3441 return name;
3442
3443 error:
3444 g_free(left);
3445 return NULL;
3446 }
3447
3448 static
3449 int visit_event_decl(struct ctx *ctx, struct ctf_node *node)
3450 {
3451 int ret = 0;
3452 int set = 0;
3453 struct ctf_node *iter;
3454 uint64_t stream_id = 0;
3455 char *event_name = NULL;
3456 struct ctf_event_class *event_class = NULL;
3457 struct ctf_stream_class *stream_class = NULL;
3458 struct bt_list_head *decl_list = &node->u.event.declaration_list;
3459 bool pop_scope = false;
3460
3461 if (node->visited) {
3462 goto end;
3463 }
3464
3465 node->visited = TRUE;
3466 event_name = get_event_decl_name(ctx, node);
3467 if (!event_name) {
3468 _BT_COMP_LOGE_NODE(node,
3469 "Missing `name` attribute in event class.");
3470 ret = -EPERM;
3471 goto error;
3472 }
3473
3474 event_class = ctf_event_class_create();
3475 BT_ASSERT(event_class);
3476 g_string_assign(event_class->name, event_name);
3477 _TRY_PUSH_SCOPE_OR_GOTO_ERROR();
3478 pop_scope = true;
3479
3480 bt_list_for_each_entry(iter, decl_list, siblings) {
3481 ret = visit_event_decl_entry(ctx, iter, event_class,
3482 &stream_id, &set);
3483 if (ret) {
3484 _BT_COMP_LOGE_NODE(iter, "Cannot visit event class's entry: "
3485 "ret=%d", ret);
3486 goto error;
3487 }
3488 }
3489
3490 if (!_IS_SET(&set, _EVENT_STREAM_ID_SET)) {
3491 /*
3492 * Allow missing stream_id if there is only a single
3493 * stream class.
3494 */
3495 switch (ctx->ctf_tc->stream_classes->len) {
3496 case 0:
3497 /* Create implicit stream class if there's none */
3498 stream_id = 0;
3499 stream_class = ctf_stream_class_create();
3500 BT_ASSERT(stream_class);
3501 stream_class->id = stream_id;
3502 g_ptr_array_add(ctx->ctf_tc->stream_classes,
3503 stream_class);
3504 break;
3505 case 1:
3506 /* Single stream class: get its ID */
3507 stream_class = ctx->ctf_tc->stream_classes->pdata[0];
3508 stream_id = stream_class->id;
3509 break;
3510 default:
3511 _BT_COMP_LOGE_NODE(node,
3512 "Missing `stream_id` attribute in event class.");
3513 ret = -EPERM;
3514 goto error;
3515 }
3516 }
3517
3518 /* We have the stream ID now; get the stream class if found */
3519 if (!stream_class) {
3520 stream_class = ctf_trace_class_borrow_stream_class_by_id(
3521 ctx->ctf_tc, stream_id);
3522 if (!stream_class) {
3523 _BT_COMP_LOGE_NODE(node,
3524 "Cannot find stream class at this point: "
3525 "id=%" PRId64, stream_id);
3526 ret = -EINVAL;
3527 goto error;
3528 }
3529 }
3530
3531 BT_ASSERT(stream_class);
3532
3533 if (!_IS_SET(&set, _EVENT_ID_SET)) {
3534 /* Allow only one event without ID per stream */
3535 if (stream_class->event_classes->len != 0) {
3536 _BT_COMP_LOGE_NODE(node,
3537 "Missing `id` attribute in event class.");
3538 ret = -EPERM;
3539 goto error;
3540 }
3541
3542 /* Automatic ID */
3543 event_class->id = 0;
3544 }
3545
3546 if (ctf_stream_class_borrow_event_class_by_id(stream_class,
3547 event_class->id)) {
3548 _BT_COMP_LOGE_NODE(node,
3549 "Duplicate event class (same ID) in the same stream class: "
3550 "id=%" PRId64, event_class->id);
3551 ret = -EEXIST;
3552 goto error;
3553 }
3554
3555 ctf_stream_class_append_event_class(stream_class, event_class);
3556 event_class = NULL;
3557 goto end;
3558
3559 error:
3560 ctf_event_class_destroy(event_class);
3561 event_class = NULL;
3562
3563 if (ret >= 0) {
3564 ret = -1;
3565 }
3566
3567 end:
3568 if (pop_scope) {
3569 ctx_pop_scope(ctx);
3570 }
3571
3572 g_free(event_name);
3573
3574 return ret;
3575 }
3576
3577 static
3578 int auto_map_field_to_trace_clock_class(struct ctx *ctx,
3579 struct ctf_field_class *fc)
3580 {
3581 struct ctf_clock_class *clock_class_to_map_to = NULL;
3582 struct ctf_field_class_int *int_fc = (void *) fc;
3583 int ret = 0;
3584 uint64_t clock_class_count;
3585
3586 if (!fc) {
3587 goto end;
3588 }
3589
3590 if (fc->type != CTF_FIELD_CLASS_TYPE_INT &&
3591 fc->type != CTF_FIELD_CLASS_TYPE_ENUM) {
3592 goto end;
3593 }
3594
3595 if (int_fc->mapped_clock_class) {
3596 /* Already mapped */
3597 goto end;
3598 }
3599
3600 clock_class_count = ctx->ctf_tc->clock_classes->len;
3601
3602 switch (clock_class_count) {
3603 case 0:
3604 /*
3605 * No clock class exists in the trace at this point. Create an
3606 * implicit one at 1 GHz, named `default`, and use this clock
3607 * class.
3608 */
3609 clock_class_to_map_to = ctf_clock_class_create();
3610 BT_ASSERT(clock_class_to_map_to);
3611 clock_class_to_map_to->frequency = UINT64_C(1000000000);
3612 g_string_assign(clock_class_to_map_to->name, "default");
3613 BT_ASSERT(ret == 0);
3614 g_ptr_array_add(ctx->ctf_tc->clock_classes,
3615 clock_class_to_map_to);
3616 break;
3617 case 1:
3618 /*
3619 * Only one clock class exists in the trace at this point: use
3620 * this one.
3621 */
3622 clock_class_to_map_to = ctx->ctf_tc->clock_classes->pdata[0];
3623 break;
3624 default:
3625 /*
3626 * Timestamp field not mapped to a clock class and there's more
3627 * than one clock class in the trace: this is an error.
3628 */
3629 BT_COMP_LOGE_STR("Timestamp field found with no mapped clock class, "
3630 "but there's more than one clock class in the trace at this point.");
3631 ret = -1;
3632 goto end;
3633 }
3634
3635 BT_ASSERT(clock_class_to_map_to);
3636 int_fc->mapped_clock_class = clock_class_to_map_to;
3637
3638 end:
3639 return ret;
3640 }
3641
3642 static
3643 int auto_map_fields_to_trace_clock_class(struct ctx *ctx,
3644 struct ctf_field_class *root_fc, const char *field_name)
3645 {
3646 int ret = 0;
3647 uint64_t i, count;
3648 struct ctf_field_class_struct *struct_fc = (void *) root_fc;
3649 struct ctf_field_class_variant *var_fc = (void *) root_fc;
3650
3651 if (!root_fc) {
3652 goto end;
3653 }
3654
3655 if (root_fc->type != CTF_FIELD_CLASS_TYPE_STRUCT &&
3656 root_fc->type != CTF_FIELD_CLASS_TYPE_VARIANT) {
3657 goto end;
3658 }
3659
3660 if (root_fc->type == CTF_FIELD_CLASS_TYPE_STRUCT) {
3661 count = struct_fc->members->len;
3662 } else {
3663 count = var_fc->options->len;
3664 }
3665
3666 for (i = 0; i < count; i++) {
3667 struct ctf_named_field_class *named_fc = NULL;
3668
3669 if (root_fc->type == CTF_FIELD_CLASS_TYPE_STRUCT) {
3670 named_fc = ctf_field_class_struct_borrow_member_by_index(
3671 struct_fc, i);
3672 } else if (root_fc->type == CTF_FIELD_CLASS_TYPE_VARIANT) {
3673 named_fc = ctf_field_class_variant_borrow_option_by_index(
3674 var_fc, i);
3675 }
3676
3677 if (strcmp(named_fc->name->str, field_name) == 0) {
3678 ret = auto_map_field_to_trace_clock_class(ctx,
3679 named_fc->fc);
3680 if (ret) {
3681 BT_COMP_LOGE("Cannot automatically map field to trace's clock class: "
3682 "field-name=\"%s\"", field_name);
3683 goto end;
3684 }
3685 }
3686
3687 ret = auto_map_fields_to_trace_clock_class(ctx, named_fc->fc,
3688 field_name);
3689 if (ret) {
3690 BT_COMP_LOGE("Cannot automatically map structure or variant field class's fields to trace's clock class: "
3691 "field-name=\"%s\", root-field-name=\"%s\"",
3692 field_name, named_fc->name->str);
3693 goto end;
3694 }
3695 }
3696
3697 end:
3698 return ret;
3699 }
3700
3701 static
3702 int visit_stream_decl_entry(struct ctx *ctx, struct ctf_node *node,
3703 struct ctf_stream_class *stream_class, int *set)
3704 {
3705 int ret = 0;
3706 char *left = NULL;
3707
3708 switch (node->type) {
3709 case NODE_TYPEDEF:
3710 ret = visit_field_class_def(ctx, node->u.field_class_def.field_class_specifier_list,
3711 &node->u.field_class_def.field_class_declarators);
3712 if (ret) {
3713 _BT_COMP_LOGE_NODE(node,
3714 "Cannot add field class found in stream class.");
3715 goto error;
3716 }
3717 break;
3718 case NODE_TYPEALIAS:
3719 ret = visit_field_class_alias(ctx, node->u.field_class_alias.target,
3720 node->u.field_class_alias.alias);
3721 if (ret) {
3722 _BT_COMP_LOGE_NODE(node,
3723 "Cannot add field class alias found in stream class.");
3724 goto error;
3725 }
3726 break;
3727 case NODE_CTF_EXPRESSION:
3728 {
3729 left = concatenate_unary_strings(&node->u.ctf_expression.left);
3730 if (!left) {
3731 _BT_COMP_LOGE_NODE(node, "Cannot concatenate unary strings.");
3732 ret = -EINVAL;
3733 goto error;
3734 }
3735
3736 if (!strcmp(left, "id")) {
3737 int64_t id;
3738
3739 if (_IS_SET(set, _STREAM_ID_SET)) {
3740 _BT_COMP_LOGE_DUP_ATTR(node, "id",
3741 "stream declaration");
3742 ret = -EPERM;
3743 goto error;
3744 }
3745
3746 ret = get_unary_unsigned(ctx,
3747 &node->u.ctf_expression.right,
3748 (uint64_t *) &id);
3749
3750 /* Only read "id" if get_unary_unsigned() succeeded. */
3751 if (ret || (!ret && id < 0)) {
3752 _BT_COMP_LOGE_NODE(node,
3753 "Unexpected unary expression for stream class's `id` attribute.");
3754 ret = -EINVAL;
3755 goto error;
3756 }
3757
3758 if (ctf_trace_class_borrow_stream_class_by_id(
3759 ctx->ctf_tc, id)) {
3760 _BT_COMP_LOGE_NODE(node,
3761 "Duplicate stream class (same ID): id=%" PRId64,
3762 id);
3763 ret = -EEXIST;
3764 goto error;
3765 }
3766
3767 stream_class->id = id;
3768 _SET(set, _STREAM_ID_SET);
3769 } else if (!strcmp(left, "event.header")) {
3770 if (_IS_SET(set, _STREAM_EVENT_HEADER_SET)) {
3771 _BT_COMP_LOGE_NODE(node,
3772 "Duplicate `event.header` entry in stream class.");
3773 ret = -EPERM;
3774 goto error;
3775 }
3776
3777 ret = visit_field_class_specifier_list(ctx,
3778 _BT_LIST_FIRST_ENTRY(
3779 &node->u.ctf_expression.right,
3780 struct ctf_node, siblings),
3781 &stream_class->event_header_fc);
3782 if (ret) {
3783 _BT_COMP_LOGE_NODE(node,
3784 "Cannot create stream class's event header field class.");
3785 goto error;
3786 }
3787
3788 BT_ASSERT(stream_class->event_header_fc);
3789 ret = auto_map_fields_to_trace_clock_class(ctx,
3790 stream_class->event_header_fc, "timestamp");
3791 if (ret) {
3792 _BT_COMP_LOGE_NODE(node,
3793 "Cannot automatically map specific event header field class fields named `timestamp` to trace's clock class.");
3794 goto error;
3795 }
3796
3797 _SET(set, _STREAM_EVENT_HEADER_SET);
3798 } else if (!strcmp(left, "event.context")) {
3799 if (_IS_SET(set, _STREAM_EVENT_CONTEXT_SET)) {
3800 _BT_COMP_LOGE_NODE(node,
3801 "Duplicate `event.context` entry in stream class.");
3802 ret = -EPERM;
3803 goto error;
3804 }
3805
3806 ret = visit_field_class_specifier_list(ctx,
3807 _BT_LIST_FIRST_ENTRY(
3808 &node->u.ctf_expression.right,
3809 struct ctf_node, siblings),
3810 &stream_class->event_common_context_fc);
3811 if (ret) {
3812 _BT_COMP_LOGE_NODE(node,
3813 "Cannot create stream class's event context field class.");
3814 goto error;
3815 }
3816
3817 BT_ASSERT(stream_class->event_common_context_fc);
3818 _SET(set, _STREAM_EVENT_CONTEXT_SET);
3819 } else if (!strcmp(left, "packet.context")) {
3820 if (_IS_SET(set, _STREAM_PACKET_CONTEXT_SET)) {
3821 _BT_COMP_LOGE_NODE(node,
3822 "Duplicate `packet.context` entry in stream class.");
3823 ret = -EPERM;
3824 goto error;
3825 }
3826
3827 ret = visit_field_class_specifier_list(ctx,
3828 _BT_LIST_FIRST_ENTRY(
3829 &node->u.ctf_expression.right,
3830 struct ctf_node, siblings),
3831 &stream_class->packet_context_fc);
3832 if (ret) {
3833 _BT_COMP_LOGE_NODE(node,
3834 "Cannot create stream class's packet context field class.");
3835 goto error;
3836 }
3837
3838 BT_ASSERT(stream_class->packet_context_fc);
3839 ret = auto_map_fields_to_trace_clock_class(ctx,
3840 stream_class->packet_context_fc,
3841 "timestamp_begin");
3842 if (ret) {
3843 _BT_COMP_LOGE_NODE(node,
3844 "Cannot automatically map specific packet context field class fields named `timestamp_begin` to trace's clock class.");
3845 goto error;
3846 }
3847
3848 ret = auto_map_fields_to_trace_clock_class(ctx,
3849 stream_class->packet_context_fc,
3850 "timestamp_end");
3851 if (ret) {
3852 _BT_COMP_LOGE_NODE(node,
3853 "Cannot automatically map specific packet context field class fields named `timestamp_end` to trace's clock class.");
3854 goto error;
3855 }
3856
3857 _SET(set, _STREAM_PACKET_CONTEXT_SET);
3858 } else {
3859 _BT_COMP_LOGW_NODE(node,
3860 "Unknown attribute in stream class: "
3861 "attr-name=\"%s\"", left);
3862 }
3863
3864 g_free(left);
3865 left = NULL;
3866 break;
3867 }
3868
3869 default:
3870 ret = -EPERM;
3871 goto error;
3872 }
3873
3874 return 0;
3875
3876 error:
3877 g_free(left);
3878 return ret;
3879 }
3880
3881 static
3882 int visit_stream_decl(struct ctx *ctx, struct ctf_node *node)
3883 {
3884 int set = 0;
3885 int ret = 0;
3886 struct ctf_node *iter;
3887 struct ctf_stream_class *stream_class = NULL;
3888 struct bt_list_head *decl_list = &node->u.stream.declaration_list;
3889
3890 if (node->visited) {
3891 goto end;
3892 }
3893
3894 node->visited = TRUE;
3895 stream_class = ctf_stream_class_create();
3896 BT_ASSERT(stream_class);
3897 _TRY_PUSH_SCOPE_OR_GOTO_ERROR();
3898
3899 bt_list_for_each_entry(iter, decl_list, siblings) {
3900 ret = visit_stream_decl_entry(ctx, iter, stream_class, &set);
3901 if (ret) {
3902 _BT_COMP_LOGE_NODE(iter,
3903 "Cannot visit stream class's entry: "
3904 "ret=%d", ret);
3905 ctx_pop_scope(ctx);
3906 goto error;
3907 }
3908 }
3909
3910 ctx_pop_scope(ctx);
3911
3912 if (_IS_SET(&set, _STREAM_ID_SET)) {
3913 /* Check that packet header has `stream_id` field */
3914 struct ctf_named_field_class *named_fc = NULL;
3915
3916 if (!ctx->ctf_tc->packet_header_fc) {
3917 _BT_COMP_LOGE_NODE(node,
3918 "Stream class has a `id` attribute, "
3919 "but trace has no packet header field class.");
3920 goto error;
3921 }
3922
3923 named_fc = ctf_field_class_struct_borrow_member_by_name(
3924 (void *) ctx->ctf_tc->packet_header_fc, "stream_id");
3925 if (!named_fc) {
3926 _BT_COMP_LOGE_NODE(node,
3927 "Stream class has a `id` attribute, "
3928 "but trace's packet header field class has no `stream_id` field.");
3929 goto error;
3930 }
3931
3932 if (named_fc->fc->type != CTF_FIELD_CLASS_TYPE_INT &&
3933 named_fc->fc->type != CTF_FIELD_CLASS_TYPE_ENUM) {
3934 _BT_COMP_LOGE_NODE(node,
3935 "Stream class has a `id` attribute, "
3936 "but trace's packet header field class's `stream_id` field is not an integer field class.");
3937 goto error;
3938 }
3939 } else {
3940 /* Allow only _one_ ID-less stream */
3941 if (ctx->ctf_tc->stream_classes->len != 0) {
3942 _BT_COMP_LOGE_NODE(node,
3943 "Missing `id` attribute in stream class as there's more than one stream class in the trace.");
3944 ret = -EPERM;
3945 goto error;
3946 }
3947
3948 /* Automatic ID: 0 */
3949 stream_class->id = 0;
3950 }
3951
3952 /*
3953 * Make sure that this stream class's ID is currently unique in
3954 * the trace.
3955 */
3956 if (ctf_trace_class_borrow_stream_class_by_id(ctx->ctf_tc,
3957 stream_class->id)) {
3958 _BT_COMP_LOGE_NODE(node,
3959 "Duplicate stream class (same ID): id=%" PRId64,
3960 stream_class->id);
3961 ret = -EINVAL;
3962 goto error;
3963 }
3964
3965 g_ptr_array_add(ctx->ctf_tc->stream_classes, stream_class);
3966 stream_class = NULL;
3967 goto end;
3968
3969 error:
3970 ctf_stream_class_destroy(stream_class);
3971 stream_class = NULL;
3972
3973 end:
3974 return ret;
3975 }
3976
3977 static
3978 int visit_trace_decl_entry(struct ctx *ctx, struct ctf_node *node, int *set)
3979 {
3980 int ret = 0;
3981 char *left = NULL;
3982 uint64_t val;
3983
3984 switch (node->type) {
3985 case NODE_TYPEDEF:
3986 ret = visit_field_class_def(ctx, node->u.field_class_def.field_class_specifier_list,
3987 &node->u.field_class_def.field_class_declarators);
3988 if (ret) {
3989 _BT_COMP_LOGE_NODE(node,
3990 "Cannot add field class found in trace (`trace` block).");
3991 goto error;
3992 }
3993 break;
3994 case NODE_TYPEALIAS:
3995 ret = visit_field_class_alias(ctx, node->u.field_class_alias.target,
3996 node->u.field_class_alias.alias);
3997 if (ret) {
3998 _BT_COMP_LOGE_NODE(node,
3999 "Cannot add field class alias found in trace (`trace` block).");
4000 goto error;
4001 }
4002 break;
4003 case NODE_CTF_EXPRESSION:
4004 {
4005 left = concatenate_unary_strings(&node->u.ctf_expression.left);
4006 if (!left) {
4007 _BT_COMP_LOGE_NODE(node, "Cannot concatenate unary strings.");
4008 ret = -EINVAL;
4009 goto error;
4010 }
4011
4012 if (!strcmp(left, "major")) {
4013 if (_IS_SET(set, _TRACE_MAJOR_SET)) {
4014 _BT_COMP_LOGE_DUP_ATTR(node, "major", "trace");
4015 ret = -EPERM;
4016 goto error;
4017 }
4018
4019 ret = get_unary_unsigned(ctx,
4020 &node->u.ctf_expression.right, &val);
4021 if (ret) {
4022 _BT_COMP_LOGE_NODE(node,
4023 "Unexpected unary expression for trace's `major` attribute.");
4024 ret = -EINVAL;
4025 goto error;
4026 }
4027
4028 if (val != 1) {
4029 _BT_COMP_LOGE_NODE(node,
4030 "Invalid trace's `minor` attribute: expecting 1.");
4031 goto error;
4032 }
4033
4034 ctx->ctf_tc->major = val;
4035 _SET(set, _TRACE_MAJOR_SET);
4036 } else if (!strcmp(left, "minor")) {
4037 if (_IS_SET(set, _TRACE_MINOR_SET)) {
4038 _BT_COMP_LOGE_DUP_ATTR(node, "minor", "trace");
4039 ret = -EPERM;
4040 goto error;
4041 }
4042
4043 ret = get_unary_unsigned(ctx,
4044 &node->u.ctf_expression.right, &val);
4045 if (ret) {
4046 _BT_COMP_LOGE_NODE(node,
4047 "Unexpected unary expression for trace's `minor` attribute.");
4048 ret = -EINVAL;
4049 goto error;
4050 }
4051
4052 if (val != 8) {
4053 _BT_COMP_LOGE_NODE(node,
4054 "Invalid trace's `minor` attribute: expecting 8.");
4055 goto error;
4056 }
4057
4058 ctx->ctf_tc->minor = val;
4059 _SET(set, _TRACE_MINOR_SET);
4060 } else if (!strcmp(left, "uuid")) {
4061 if (_IS_SET(set, _TRACE_UUID_SET)) {
4062 _BT_COMP_LOGE_DUP_ATTR(node, "uuid", "trace");
4063 ret = -EPERM;
4064 goto error;
4065 }
4066
4067 ret = get_unary_uuid(ctx,
4068 &node->u.ctf_expression.right,
4069 ctx->ctf_tc->uuid);
4070 if (ret) {
4071 _BT_COMP_LOGE_NODE(node,
4072 "Invalid trace's `uuid` attribute.");
4073 goto error;
4074 }
4075
4076 ctx->ctf_tc->is_uuid_set = true;
4077 _SET(set, _TRACE_UUID_SET);
4078 } else if (!strcmp(left, "byte_order")) {
4079 /* Default byte order is already known at this stage */
4080 if (_IS_SET(set, _TRACE_BYTE_ORDER_SET)) {
4081 _BT_COMP_LOGE_DUP_ATTR(node, "byte_order",
4082 "trace");
4083 ret = -EPERM;
4084 goto error;
4085 }
4086
4087 BT_ASSERT(ctx->ctf_tc->default_byte_order != -1);
4088 _SET(set, _TRACE_BYTE_ORDER_SET);
4089 } else if (!strcmp(left, "packet.header")) {
4090 if (_IS_SET(set, _TRACE_PACKET_HEADER_SET)) {
4091 _BT_COMP_LOGE_NODE(node,
4092 "Duplicate `packet.header` entry in trace.");
4093 ret = -EPERM;
4094 goto error;
4095 }
4096
4097 ret = visit_field_class_specifier_list(ctx,
4098 _BT_LIST_FIRST_ENTRY(
4099 &node->u.ctf_expression.right,
4100 struct ctf_node, siblings),
4101 &ctx->ctf_tc->packet_header_fc);
4102 if (ret) {
4103 _BT_COMP_LOGE_NODE(node,
4104 "Cannot create trace's packet header field class.");
4105 goto error;
4106 }
4107
4108 BT_ASSERT(ctx->ctf_tc->packet_header_fc);
4109 _SET(set, _TRACE_PACKET_HEADER_SET);
4110 } else {
4111 _BT_COMP_LOGW_NODE(node,
4112 "Unknown attribute in stream class: "
4113 "attr-name=\"%s\"", left);
4114 }
4115
4116 g_free(left);
4117 left = NULL;
4118 break;
4119 }
4120 default:
4121 _BT_COMP_LOGE_NODE(node, "Unknown expression in trace.");
4122 ret = -EINVAL;
4123 goto error;
4124 }
4125
4126 return 0;
4127
4128 error:
4129 g_free(left);
4130 return ret;
4131 }
4132
4133 static
4134 int visit_trace_decl(struct ctx *ctx, struct ctf_node *node)
4135 {
4136 int ret = 0;
4137 int set = 0;
4138 struct ctf_node *iter;
4139 struct bt_list_head *decl_list = &node->u.trace.declaration_list;
4140
4141 if (node->visited) {
4142 goto end;
4143 }
4144
4145 node->visited = TRUE;
4146
4147 if (ctx->is_trace_visited) {
4148 _BT_COMP_LOGE_NODE(node, "Duplicate trace (`trace` block).");
4149 ret = -EEXIST;
4150 goto error;
4151 }
4152
4153 _TRY_PUSH_SCOPE_OR_GOTO_ERROR();
4154
4155 bt_list_for_each_entry(iter, decl_list, siblings) {
4156 ret = visit_trace_decl_entry(ctx, iter, &set);
4157 if (ret) {
4158 _BT_COMP_LOGE_NODE(iter, "Cannot visit trace's entry (`trace` block): "
4159 "ret=%d", ret);
4160 ctx_pop_scope(ctx);
4161 goto error;
4162 }
4163 }
4164
4165 ctx_pop_scope(ctx);
4166
4167 if (!_IS_SET(&set, _TRACE_MAJOR_SET)) {
4168 _BT_COMP_LOGE_NODE(node,
4169 "Missing `major` attribute in trace (`trace` block).");
4170 ret = -EPERM;
4171 goto error;
4172 }
4173
4174 if (!_IS_SET(&set, _TRACE_MINOR_SET)) {
4175 _BT_COMP_LOGE_NODE(node,
4176 "Missing `minor` attribute in trace (`trace` block).");
4177 ret = -EPERM;
4178 goto error;
4179 }
4180
4181 if (!_IS_SET(&set, _TRACE_BYTE_ORDER_SET)) {
4182 _BT_COMP_LOGE_NODE(node,
4183 "Missing `byte_order` attribute in trace (`trace` block).");
4184 ret = -EPERM;
4185 goto error;
4186 }
4187
4188 ctx->is_trace_visited = true;
4189
4190 end:
4191 return 0;
4192
4193 error:
4194 return ret;
4195 }
4196
4197 static
4198 int visit_env(struct ctx *ctx, struct ctf_node *node)
4199 {
4200 int ret = 0;
4201 char *left = NULL;
4202 struct ctf_node *entry_node;
4203 struct bt_list_head *decl_list = &node->u.env.declaration_list;
4204
4205 if (node->visited) {
4206 goto end;
4207 }
4208
4209 node->visited = TRUE;
4210
4211 bt_list_for_each_entry(entry_node, decl_list, siblings) {
4212 struct bt_list_head *right_head =
4213 &entry_node->u.ctf_expression.right;
4214
4215 if (entry_node->type != NODE_CTF_EXPRESSION) {
4216 _BT_COMP_LOGE_NODE(entry_node,
4217 "Wrong expression in environment entry: "
4218 "node-type=%d", entry_node->type);
4219 ret = -EPERM;
4220 goto error;
4221 }
4222
4223 left = concatenate_unary_strings(
4224 &entry_node->u.ctf_expression.left);
4225 if (!left) {
4226 _BT_COMP_LOGE_NODE(entry_node,
4227 "Cannot get environment entry's name.");
4228 ret = -EINVAL;
4229 goto error;
4230 }
4231
4232 if (is_unary_string(right_head)) {
4233 char *right = concatenate_unary_strings(right_head);
4234
4235 if (!right) {
4236 _BT_COMP_LOGE_NODE(entry_node,
4237 "Unexpected unary expression for environment entry's value: "
4238 "name=\"%s\"", left);
4239 ret = -EINVAL;
4240 goto error;
4241 }
4242
4243 if (strcmp(left, "tracer_name") == 0) {
4244 if (strncmp(right, "lttng", 5) == 0) {
4245 BT_COMP_LOGI("Detected LTTng trace from `%s` environment value: "
4246 "tracer-name=\"%s\"",
4247 left, right);
4248 ctx->is_lttng = true;
4249 }
4250 }
4251
4252 ctf_trace_class_append_env_entry(ctx->ctf_tc,
4253 left, CTF_TRACE_CLASS_ENV_ENTRY_TYPE_STR,
4254 right, 0);
4255 g_free(right);
4256 } else if (is_unary_unsigned(right_head) ||
4257 is_unary_signed(right_head)) {
4258 int64_t v;
4259
4260 if (is_unary_unsigned(right_head)) {
4261 ret = get_unary_unsigned(ctx, right_head,
4262 (uint64_t *) &v);
4263 } else {
4264 ret = get_unary_signed(right_head, &v);
4265 }
4266 if (ret) {
4267 _BT_COMP_LOGE_NODE(entry_node,
4268 "Unexpected unary expression for environment entry's value: "
4269 "name=\"%s\"", left);
4270 ret = -EINVAL;
4271 goto error;
4272 }
4273
4274 ctf_trace_class_append_env_entry(ctx->ctf_tc,
4275 left, CTF_TRACE_CLASS_ENV_ENTRY_TYPE_INT,
4276 NULL, v);
4277 } else {
4278 _BT_COMP_LOGW_NODE(entry_node,
4279 "Environment entry has unknown type: "
4280 "name=\"%s\"", left);
4281 }
4282
4283 g_free(left);
4284 left = NULL;
4285 }
4286
4287 end:
4288 return 0;
4289
4290 error:
4291 g_free(left);
4292 return ret;
4293 }
4294
4295 static
4296 int set_trace_byte_order(struct ctx *ctx, struct ctf_node *trace_node)
4297 {
4298 int ret = 0;
4299 int set = 0;
4300 char *left = NULL;
4301 struct ctf_node *node;
4302 struct bt_list_head *decl_list = &trace_node->u.trace.declaration_list;
4303
4304 bt_list_for_each_entry(node, decl_list, siblings) {
4305 if (node->type == NODE_CTF_EXPRESSION) {
4306 struct ctf_node *right_node;
4307
4308 left = concatenate_unary_strings(
4309 &node->u.ctf_expression.left);
4310 if (!left) {
4311 _BT_COMP_LOGE_NODE(node,
4312 "Cannot concatenate unary strings.");
4313 ret = -EINVAL;
4314 goto error;
4315 }
4316
4317 if (!strcmp(left, "byte_order")) {
4318 enum ctf_byte_order bo;
4319
4320 if (_IS_SET(&set, _TRACE_BYTE_ORDER_SET)) {
4321 _BT_COMP_LOGE_DUP_ATTR(node, "byte_order",
4322 "trace");
4323 ret = -EPERM;
4324 goto error;
4325 }
4326
4327 _SET(&set, _TRACE_BYTE_ORDER_SET);
4328 right_node = _BT_LIST_FIRST_ENTRY(
4329 &node->u.ctf_expression.right,
4330 struct ctf_node, siblings);
4331 bo = byte_order_from_unary_expr(ctx,
4332 right_node);
4333 if (bo == -1) {
4334 _BT_COMP_LOGE_NODE(node,
4335 "Invalid `byte_order` attribute in trace (`trace` block): "
4336 "expecting `le`, `be`, or `network`.");
4337 ret = -EINVAL;
4338 goto error;
4339 } else if (bo == CTF_BYTE_ORDER_DEFAULT) {
4340 _BT_COMP_LOGE_NODE(node,
4341 "Invalid `byte_order` attribute in trace (`trace` block): "
4342 "cannot be set to `native` here.");
4343 ret = -EPERM;
4344 goto error;
4345 }
4346
4347 ctx->ctf_tc->default_byte_order = bo;
4348 }
4349
4350 g_free(left);
4351 left = NULL;
4352 }
4353 }
4354
4355 if (!_IS_SET(&set, _TRACE_BYTE_ORDER_SET)) {
4356 _BT_COMP_LOGE_NODE(trace_node,
4357 "Missing `byte_order` attribute in trace (`trace` block).");
4358 ret = -EINVAL;
4359 goto error;
4360 }
4361
4362 return 0;
4363
4364 error:
4365 g_free(left);
4366 return ret;
4367 }
4368
4369 static
4370 int visit_clock_decl_entry(struct ctx *ctx, struct ctf_node *entry_node,
4371 struct ctf_clock_class *clock, int *set, int64_t *offset_seconds,
4372 uint64_t *offset_cycles)
4373 {
4374 int ret = 0;
4375 char *left = NULL;
4376
4377 if (entry_node->type != NODE_CTF_EXPRESSION) {
4378 _BT_COMP_LOGE_NODE(entry_node,
4379 "Unexpected node type: node-type=%d",
4380 entry_node->type);
4381 ret = -EPERM;
4382 goto error;
4383 }
4384
4385 left = concatenate_unary_strings(&entry_node->u.ctf_expression.left);
4386 if (!left) {
4387 _BT_COMP_LOGE_NODE(entry_node, "Cannot concatenate unary strings.");
4388 ret = -EINVAL;
4389 goto error;
4390 }
4391
4392 if (!strcmp(left, "name")) {
4393 char *right;
4394
4395 if (_IS_SET(set, _CLOCK_NAME_SET)) {
4396 _BT_COMP_LOGE_DUP_ATTR(entry_node, "name", "clock class");
4397 ret = -EPERM;
4398 goto error;
4399 }
4400
4401 right = concatenate_unary_strings(
4402 &entry_node->u.ctf_expression.right);
4403 if (!right) {
4404 _BT_COMP_LOGE_NODE(entry_node,
4405 "Unexpected unary expression for clock class's `name` attribute.");
4406 ret = -EINVAL;
4407 goto error;
4408 }
4409
4410 g_string_assign(clock->name, right);
4411 g_free(right);
4412 _SET(set, _CLOCK_NAME_SET);
4413 } else if (!strcmp(left, "uuid")) {
4414 bt_uuid_t uuid;
4415
4416 if (_IS_SET(set, _CLOCK_UUID_SET)) {
4417 _BT_COMP_LOGE_DUP_ATTR(entry_node, "uuid", "clock class");
4418 ret = -EPERM;
4419 goto error;
4420 }
4421
4422 ret = get_unary_uuid(ctx, &entry_node->u.ctf_expression.right,
4423 uuid);
4424 if (ret) {
4425 _BT_COMP_LOGE_NODE(entry_node,
4426 "Invalid clock class's `uuid` attribute.");
4427 goto error;
4428 }
4429
4430 clock->has_uuid = true;
4431 bt_uuid_copy(clock->uuid, uuid);
4432 _SET(set, _CLOCK_UUID_SET);
4433 } else if (!strcmp(left, "description")) {
4434 char *right;
4435
4436 if (_IS_SET(set, _CLOCK_DESCRIPTION_SET)) {
4437 _BT_COMP_LOGE_DUP_ATTR(entry_node, "description",
4438 "clock class");
4439 ret = -EPERM;
4440 goto error;
4441 }
4442
4443 right = concatenate_unary_strings(
4444 &entry_node->u.ctf_expression.right);
4445 if (!right) {
4446 _BT_COMP_LOGE_NODE(entry_node,
4447 "Unexpected unary expression for clock class's `description` attribute.");
4448 ret = -EINVAL;
4449 goto error;
4450 }
4451
4452 g_string_assign(clock->description, right);
4453 g_free(right);
4454 _SET(set, _CLOCK_DESCRIPTION_SET);
4455 } else if (!strcmp(left, "freq")) {
4456 uint64_t freq = UINT64_C(-1);
4457
4458 if (_IS_SET(set, _CLOCK_FREQ_SET)) {
4459 _BT_COMP_LOGE_DUP_ATTR(entry_node, "freq", "clock class");
4460 ret = -EPERM;
4461 goto error;
4462 }
4463
4464 ret = get_unary_unsigned(ctx,
4465 &entry_node->u.ctf_expression.right, &freq);
4466 if (ret) {
4467 _BT_COMP_LOGE_NODE(entry_node,
4468 "Unexpected unary expression for clock class's `freq` attribute.");
4469 ret = -EINVAL;
4470 goto error;
4471 }
4472
4473 if (freq == UINT64_C(-1) || freq == 0) {
4474 _BT_COMP_LOGE_NODE(entry_node,
4475 "Invalid clock class frequency: freq=%" PRIu64,
4476 freq);
4477 ret = -EINVAL;
4478 goto error;
4479 }
4480
4481 clock->frequency = freq;
4482 _SET(set, _CLOCK_FREQ_SET);
4483 } else if (!strcmp(left, "precision")) {
4484 uint64_t precision;
4485
4486 if (_IS_SET(set, _CLOCK_PRECISION_SET)) {
4487 _BT_COMP_LOGE_DUP_ATTR(entry_node, "precision",
4488 "clock class");
4489 ret = -EPERM;
4490 goto error;
4491 }
4492
4493 ret = get_unary_unsigned(ctx,
4494 &entry_node->u.ctf_expression.right, &precision);
4495 if (ret) {
4496 _BT_COMP_LOGE_NODE(entry_node,
4497 "Unexpected unary expression for clock class's `precision` attribute.");
4498 ret = -EINVAL;
4499 goto error;
4500 }
4501
4502 clock->precision = precision;
4503 _SET(set, _CLOCK_PRECISION_SET);
4504 } else if (!strcmp(left, "offset_s")) {
4505 if (_IS_SET(set, _CLOCK_OFFSET_S_SET)) {
4506 _BT_COMP_LOGE_DUP_ATTR(entry_node, "offset_s",
4507 "clock class");
4508 ret = -EPERM;
4509 goto error;
4510 }
4511
4512 ret = get_unary_signed(
4513 &entry_node->u.ctf_expression.right, offset_seconds);
4514 if (ret) {
4515 _BT_COMP_LOGE_NODE(entry_node,
4516 "Unexpected unary expression for clock class's `offset_s` attribute.");
4517 ret = -EINVAL;
4518 goto error;
4519 }
4520
4521 _SET(set, _CLOCK_OFFSET_S_SET);
4522 } else if (!strcmp(left, "offset")) {
4523 if (_IS_SET(set, _CLOCK_OFFSET_SET)) {
4524 _BT_COMP_LOGE_DUP_ATTR(entry_node, "offset", "clock class");
4525 ret = -EPERM;
4526 goto error;
4527 }
4528
4529 ret = get_unary_unsigned(ctx,
4530 &entry_node->u.ctf_expression.right, offset_cycles);
4531 if (ret) {
4532 _BT_COMP_LOGE_NODE(entry_node,
4533 "Unexpected unary expression for clock class's `offset` attribute.");
4534 ret = -EINVAL;
4535 goto error;
4536 }
4537
4538 _SET(set, _CLOCK_OFFSET_SET);
4539 } else if (!strcmp(left, "absolute")) {
4540 struct ctf_node *right;
4541
4542 if (_IS_SET(set, _CLOCK_ABSOLUTE_SET)) {
4543 _BT_COMP_LOGE_DUP_ATTR(entry_node, "absolute",
4544 "clock class");
4545 ret = -EPERM;
4546 goto error;
4547 }
4548
4549 right = _BT_LIST_FIRST_ENTRY(
4550 &entry_node->u.ctf_expression.right,
4551 struct ctf_node, siblings);
4552 ret = get_boolean(ctx, right);
4553 if (ret < 0) {
4554 _BT_COMP_LOGE_NODE(entry_node,
4555 "Unexpected unary expression for clock class's `absolute` attribute.");
4556 ret = -EINVAL;
4557 goto error;
4558 }
4559
4560 clock->is_absolute = ret;
4561 _SET(set, _CLOCK_ABSOLUTE_SET);
4562 } else {
4563 _BT_COMP_LOGW_NODE(entry_node,
4564 "Unknown attribute in clock class: attr-name=\"%s\"",
4565 left);
4566 }
4567
4568 g_free(left);
4569 left = NULL;
4570 return 0;
4571
4572 error:
4573 g_free(left);
4574 return ret;
4575 }
4576
4577 static inline
4578 uint64_t cycles_from_ns(uint64_t frequency, uint64_t ns)
4579 {
4580 uint64_t cycles;
4581
4582 /* 1GHz */
4583 if (frequency == UINT64_C(1000000000)) {
4584 cycles = ns;
4585 } else {
4586 cycles = (uint64_t) (((double) ns * (double) frequency) / 1e9);
4587 }
4588
4589 return cycles;
4590 }
4591
4592 static
4593 void calibrate_clock_class_offsets(int64_t *offset_seconds,
4594 uint64_t *offset_cycles, uint64_t freq)
4595 {
4596 if (*offset_cycles >= freq) {
4597 const uint64_t s_in_offset_cycles = *offset_cycles / freq;
4598
4599 *offset_seconds += (int64_t) s_in_offset_cycles;
4600 *offset_cycles -= (s_in_offset_cycles * freq);
4601 }
4602 }
4603
4604 static
4605 void apply_clock_class_offset(struct ctx *ctx,
4606 struct ctf_clock_class *clock)
4607 {
4608 uint64_t freq;
4609 int64_t offset_s_to_apply = ctx->decoder_config.clock_class_offset_s;
4610 uint64_t offset_ns_to_apply;
4611 int64_t cur_offset_s;
4612 uint64_t cur_offset_cycles;
4613
4614 if (ctx->decoder_config.clock_class_offset_s == 0 &&
4615 ctx->decoder_config.clock_class_offset_ns == 0) {
4616 goto end;
4617 }
4618
4619 /* Transfer nanoseconds to seconds as much as possible */
4620 if (ctx->decoder_config.clock_class_offset_ns < 0) {
4621 const int64_t abs_ns = -ctx->decoder_config.clock_class_offset_ns;
4622 const int64_t abs_extra_s = abs_ns / INT64_C(1000000000) + 1;
4623 const int64_t extra_s = -abs_extra_s;
4624 const int64_t offset_ns = ctx->decoder_config.clock_class_offset_ns -
4625 (extra_s * INT64_C(1000000000));
4626
4627 BT_ASSERT(offset_ns > 0);
4628 offset_ns_to_apply = (uint64_t) offset_ns;
4629 offset_s_to_apply += extra_s;
4630 } else {
4631 const int64_t extra_s = ctx->decoder_config.clock_class_offset_ns /
4632 INT64_C(1000000000);
4633 const int64_t offset_ns = ctx->decoder_config.clock_class_offset_ns -
4634 (extra_s * INT64_C(1000000000));
4635
4636 BT_ASSERT(offset_ns >= 0);
4637 offset_ns_to_apply = (uint64_t) offset_ns;
4638 offset_s_to_apply += extra_s;
4639 }
4640
4641 freq = clock->frequency;
4642 cur_offset_s = clock->offset_seconds;
4643 cur_offset_cycles = clock->offset_cycles;
4644
4645 /* Apply offsets */
4646 cur_offset_s += offset_s_to_apply;
4647 cur_offset_cycles += cycles_from_ns(freq, offset_ns_to_apply);
4648
4649 /*
4650 * Recalibrate offsets because the part in cycles can be greater
4651 * than the frequency at this point.
4652 */
4653 calibrate_clock_class_offsets(&cur_offset_s, &cur_offset_cycles, freq);
4654
4655 /* Set final offsets */
4656 clock->offset_seconds = cur_offset_s;
4657 clock->offset_cycles = cur_offset_cycles;
4658
4659 end:
4660 return;
4661 }
4662
4663 static
4664 int visit_clock_decl(struct ctx *ctx, struct ctf_node *clock_node)
4665 {
4666 int ret = 0;
4667 int set = 0;
4668 struct ctf_clock_class *clock;
4669 struct ctf_node *entry_node;
4670 struct bt_list_head *decl_list = &clock_node->u.clock.declaration_list;
4671 const char *clock_class_name;
4672 int64_t offset_seconds = 0;
4673 uint64_t offset_cycles = 0;
4674 uint64_t freq;
4675
4676 if (clock_node->visited) {
4677 return 0;
4678 }
4679
4680 clock_node->visited = TRUE;
4681
4682 /* CTF 1.8's default frequency for a clock class is 1 GHz */
4683 clock = ctf_clock_class_create();
4684 if (!clock) {
4685 _BT_COMP_LOGE_NODE(clock_node,
4686 "Cannot create default clock class.");
4687 ret = -ENOMEM;
4688 goto end;
4689 }
4690
4691 bt_list_for_each_entry(entry_node, decl_list, siblings) {
4692 ret = visit_clock_decl_entry(ctx, entry_node, clock, &set,
4693 &offset_seconds, &offset_cycles);
4694 if (ret) {
4695 _BT_COMP_LOGE_NODE(entry_node,
4696 "Cannot visit clock class's entry: ret=%d",
4697 ret);
4698 goto end;
4699 }
4700 }
4701
4702 if (!_IS_SET(&set, _CLOCK_NAME_SET)) {
4703 _BT_COMP_LOGE_NODE(clock_node,
4704 "Missing `name` attribute in clock class.");
4705 ret = -EPERM;
4706 goto end;
4707 }
4708
4709 clock_class_name = clock->name->str;
4710 BT_ASSERT(clock_class_name);
4711 if (ctx->is_lttng && strcmp(clock_class_name, "monotonic") == 0) {
4712 /*
4713 * Old versions of LTTng forgot to set its clock class
4714 * as absolute, even if it is. This is important because
4715 * it's a condition to be able to sort messages
4716 * from different sources.
4717 */
4718 clock->is_absolute = true;
4719 }
4720
4721 /*
4722 * Adjust offsets so that the part in cycles is less than the
4723 * frequency (move to the part in seconds).
4724 */
4725 freq = clock->frequency;
4726 calibrate_clock_class_offsets(&offset_seconds, &offset_cycles, freq);
4727 BT_ASSERT(offset_cycles < clock->frequency);
4728 clock->offset_seconds = offset_seconds;
4729 clock->offset_cycles = offset_cycles;
4730 apply_clock_class_offset(ctx, clock);
4731 g_ptr_array_add(ctx->ctf_tc->clock_classes, clock);
4732 clock = NULL;
4733
4734 end:
4735 if (clock) {
4736 ctf_clock_class_destroy(clock);
4737 }
4738
4739 return ret;
4740 }
4741
4742 static
4743 int visit_root_decl(struct ctx *ctx, struct ctf_node *root_decl_node)
4744 {
4745 int ret = 0;
4746
4747 if (root_decl_node->visited) {
4748 goto end;
4749 }
4750
4751 root_decl_node->visited = TRUE;
4752
4753 switch (root_decl_node->type) {
4754 case NODE_TYPEDEF:
4755 ret = visit_field_class_def(ctx,
4756 root_decl_node->u.field_class_def.field_class_specifier_list,
4757 &root_decl_node->u.field_class_def.field_class_declarators);
4758 if (ret) {
4759 _BT_COMP_LOGE_NODE(root_decl_node,
4760 "Cannot add field class found in root scope.");
4761 goto end;
4762 }
4763 break;
4764 case NODE_TYPEALIAS:
4765 ret = visit_field_class_alias(ctx, root_decl_node->u.field_class_alias.target,
4766 root_decl_node->u.field_class_alias.alias);
4767 if (ret) {
4768 _BT_COMP_LOGE_NODE(root_decl_node,
4769 "Cannot add field class alias found in root scope.");
4770 goto end;
4771 }
4772 break;
4773 case NODE_TYPE_SPECIFIER_LIST:
4774 {
4775 struct ctf_field_class *decl = NULL;
4776
4777 /*
4778 * Just add the field class specifier to the root
4779 * declaration scope. Put local reference.
4780 */
4781 ret = visit_field_class_specifier_list(ctx, root_decl_node, &decl);
4782 if (ret) {
4783 _BT_COMP_LOGE_NODE(root_decl_node,
4784 "Cannot visit root scope's field class: "
4785 "ret=%d", ret);
4786 BT_ASSERT(!decl);
4787 goto end;
4788 }
4789
4790 ctf_field_class_destroy(decl);
4791 decl = NULL;
4792 break;
4793 }
4794 default:
4795 _BT_COMP_LOGE_NODE(root_decl_node,
4796 "Unexpected node type: node-type=%d",
4797 root_decl_node->type);
4798 ret = -EPERM;
4799 goto end;
4800 }
4801
4802 end:
4803 return ret;
4804 }
4805
4806 BT_HIDDEN
4807 struct ctf_visitor_generate_ir *ctf_visitor_generate_ir_create(
4808 const struct ctf_metadata_decoder_config *decoder_config)
4809 {
4810 struct ctx *ctx = NULL;
4811
4812 /* Create visitor's context */
4813 ctx = ctx_create(decoder_config);
4814 if (!ctx) {
4815 BT_COMP_LOGE_STR("Cannot create visitor's context.");
4816 goto error;
4817 }
4818
4819 goto end;
4820
4821 error:
4822 ctx_destroy(ctx);
4823 ctx = NULL;
4824
4825 end:
4826 return (void *) ctx;
4827 }
4828
4829 BT_HIDDEN
4830 void ctf_visitor_generate_ir_destroy(struct ctf_visitor_generate_ir *visitor)
4831 {
4832 ctx_destroy((void *) visitor);
4833 }
4834
4835 BT_HIDDEN
4836 bt_trace_class *ctf_visitor_generate_ir_get_ir_trace_class(
4837 struct ctf_visitor_generate_ir *visitor)
4838 {
4839 struct ctx *ctx = (void *) visitor;
4840
4841 BT_ASSERT(ctx);
4842
4843 if (ctx->trace_class) {
4844 bt_trace_class_get_ref(ctx->trace_class);
4845 }
4846
4847 return ctx->trace_class;
4848 }
4849
4850 BT_HIDDEN
4851 struct ctf_trace_class *ctf_visitor_generate_ir_borrow_ctf_trace_class(
4852 struct ctf_visitor_generate_ir *visitor)
4853 {
4854 struct ctx *ctx = (void *) visitor;
4855
4856 BT_ASSERT(ctx);
4857 BT_ASSERT(ctx->ctf_tc);
4858 return ctx->ctf_tc;
4859 }
4860
4861 BT_HIDDEN
4862 int ctf_visitor_generate_ir_visit_node(struct ctf_visitor_generate_ir *visitor,
4863 struct ctf_node *node)
4864 {
4865 int ret = 0;
4866 struct ctx *ctx = (void *) visitor;
4867
4868 BT_COMP_LOGI_STR("Visiting metadata's AST to generate CTF IR objects.");
4869
4870 switch (node->type) {
4871 case NODE_ROOT:
4872 {
4873 struct ctf_node *iter;
4874 bool got_trace_decl = false;
4875
4876 /*
4877 * The first thing we need is the native byte order of
4878 * the trace block, because early class aliases can have
4879 * a `byte_order` attribute set to `native`. If we don't
4880 * have the native byte order yet, and we don't have any
4881 * trace block yet, then fail with EINCOMPLETE.
4882 */
4883 if (ctx->ctf_tc->default_byte_order == -1) {
4884 bt_list_for_each_entry(iter, &node->u.root.trace, siblings) {
4885 if (got_trace_decl) {
4886 _BT_COMP_LOGE_NODE(node,
4887 "Duplicate trace (`trace` block).");
4888 ret = -1;
4889 goto end;
4890 }
4891
4892 ret = set_trace_byte_order(ctx, iter);
4893 if (ret) {
4894 _BT_COMP_LOGE_NODE(node,
4895 "Cannot set trace's native byte order: "
4896 "ret=%d", ret);
4897 goto end;
4898 }
4899
4900 got_trace_decl = true;
4901 }
4902
4903 if (!got_trace_decl) {
4904 BT_COMP_LOGD_STR("Incomplete AST: need trace (`trace` block).");
4905 ret = -EINCOMPLETE;
4906 goto end;
4907 }
4908 }
4909
4910 BT_ASSERT(ctx->ctf_tc->default_byte_order == CTF_BYTE_ORDER_LITTLE ||
4911 ctx->ctf_tc->default_byte_order == CTF_BYTE_ORDER_BIG);
4912 BT_ASSERT(ctx->current_scope &&
4913 ctx->current_scope->parent_scope == NULL);
4914
4915 /* Environment */
4916 bt_list_for_each_entry(iter, &node->u.root.env, siblings) {
4917 ret = visit_env(ctx, iter);
4918 if (ret) {
4919 _BT_COMP_LOGE_NODE(iter,
4920 "Cannot visit trace's environment (`env` block) entry: "
4921 "ret=%d", ret);
4922 goto end;
4923 }
4924 }
4925
4926 BT_ASSERT(ctx->current_scope &&
4927 ctx->current_scope->parent_scope == NULL);
4928
4929 /*
4930 * Visit clock blocks.
4931 */
4932 bt_list_for_each_entry(iter, &node->u.root.clock, siblings) {
4933 ret = visit_clock_decl(ctx, iter);
4934 if (ret) {
4935 _BT_COMP_LOGE_NODE(iter,
4936 "Cannot visit clock class: ret=%d",
4937 ret);
4938 goto end;
4939 }
4940 }
4941
4942 BT_ASSERT(ctx->current_scope &&
4943 ctx->current_scope->parent_scope == NULL);
4944
4945 /*
4946 * Visit root declarations next, as they can be used by any
4947 * following entity.
4948 */
4949 bt_list_for_each_entry(iter, &node->u.root.declaration_list,
4950 siblings) {
4951 ret = visit_root_decl(ctx, iter);
4952 if (ret) {
4953 _BT_COMP_LOGE_NODE(iter,
4954 "Cannot visit root entry: ret=%d",
4955 ret);
4956 goto end;
4957 }
4958 }
4959
4960 BT_ASSERT(ctx->current_scope &&
4961 ctx->current_scope->parent_scope == NULL);
4962
4963 /* Callsite blocks are not supported */
4964 bt_list_for_each_entry(iter, &node->u.root.callsite, siblings) {
4965 _BT_COMP_LOGW_NODE(iter,
4966 "\"callsite\" blocks are not supported as of this version.");
4967 }
4968
4969 BT_ASSERT(ctx->current_scope &&
4970 ctx->current_scope->parent_scope == NULL);
4971
4972 /* Trace */
4973 bt_list_for_each_entry(iter, &node->u.root.trace, siblings) {
4974 ret = visit_trace_decl(ctx, iter);
4975 if (ret) {
4976 _BT_COMP_LOGE_NODE(iter,
4977 "Cannot visit trace (`trace` block): "
4978 "ret=%d", ret);
4979 goto end;
4980 }
4981 }
4982
4983 BT_ASSERT(ctx->current_scope &&
4984 ctx->current_scope->parent_scope == NULL);
4985
4986 /* Streams */
4987 bt_list_for_each_entry(iter, &node->u.root.stream, siblings) {
4988 ret = visit_stream_decl(ctx, iter);
4989 if (ret) {
4990 _BT_COMP_LOGE_NODE(iter,
4991 "Cannot visit stream class: ret=%d",
4992 ret);
4993 goto end;
4994 }
4995 }
4996
4997 BT_ASSERT(ctx->current_scope &&
4998 ctx->current_scope->parent_scope == NULL);
4999
5000 /* Events */
5001 bt_list_for_each_entry(iter, &node->u.root.event, siblings) {
5002 ret = visit_event_decl(ctx, iter);
5003 if (ret) {
5004 _BT_COMP_LOGE_NODE(iter,
5005 "Cannot visit event class: ret=%d",
5006 ret);
5007 goto end;
5008 }
5009 }
5010
5011 BT_ASSERT(ctx->current_scope &&
5012 ctx->current_scope->parent_scope == NULL);
5013 break;
5014 }
5015 default:
5016 _BT_COMP_LOGE_NODE(node,
5017 "Unexpected node type: node-type=%d",
5018 node->type);
5019 ret = -EINVAL;
5020 goto end;
5021 }
5022
5023 /* Update default clock classes */
5024 ret = ctf_trace_class_update_default_clock_classes(ctx->ctf_tc,
5025 &ctx->log_cfg);
5026 if (ret) {
5027 ret = -EINVAL;
5028 goto end;
5029 }
5030
5031 /* Update trace class meanings */
5032 ret = ctf_trace_class_update_meanings(ctx->ctf_tc);
5033 if (ret) {
5034 ret = -EINVAL;
5035 goto end;
5036 }
5037
5038 /* Update stream class configuration */
5039 ret = ctf_trace_class_update_stream_class_config(ctx->ctf_tc);
5040 if (ret) {
5041 ret = -EINVAL;
5042 goto end;
5043 }
5044
5045 /* Update text arrays and sequences */
5046 ret = ctf_trace_class_update_text_array_sequence(ctx->ctf_tc);
5047 if (ret) {
5048 ret = -EINVAL;
5049 goto end;
5050 }
5051
5052 /* Resolve sequence lengths and variant tags */
5053 ret = ctf_trace_class_resolve_field_classes(ctx->ctf_tc, &ctx->log_cfg);
5054 if (ret) {
5055 ret = -EINVAL;
5056 goto end;
5057 }
5058
5059 if (ctx->trace_class) {
5060 /*
5061 * Update "in IR" for field classes.
5062 *
5063 * If we have no IR trace class, then we'll have no way
5064 * to create IR fields anyway, so we leave all the
5065 * `in_ir` members false.
5066 */
5067 ret = ctf_trace_class_update_in_ir(ctx->ctf_tc);
5068 if (ret) {
5069 ret = -EINVAL;
5070 goto end;
5071 }
5072 }
5073
5074 /* Update saved value indexes */
5075 ret = ctf_trace_class_update_value_storing_indexes(ctx->ctf_tc);
5076 if (ret) {
5077 ret = -EINVAL;
5078 goto end;
5079 }
5080
5081 /* Validate what we have so far */
5082 ret = ctf_trace_class_validate(ctx->ctf_tc, &ctx->log_cfg);
5083 if (ret) {
5084 ret = -EINVAL;
5085 goto end;
5086 }
5087
5088 /*
5089 * If there are fields which are not related to the CTF format
5090 * itself in the packet header and in event header field
5091 * classes, warn about it because they are never translated.
5092 */
5093 ctf_trace_class_warn_meaningless_header_fields(ctx->ctf_tc,
5094 &ctx->log_cfg);
5095
5096 if (ctx->trace_class) {
5097 /* Copy new CTF metadata -> new IR metadata */
5098 ret = ctf_trace_class_translate(ctx->log_cfg.self_comp,
5099 ctx->trace_class, ctx->ctf_tc);
5100 if (ret) {
5101 ret = -EINVAL;
5102 goto end;
5103 }
5104 }
5105
5106 end:
5107 return ret;
5108 }
BabelTrace - Trace Format Babel Tower
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