xref: /openbmc/linux/tools/perf/util/parse-events.y (revision 5d7800d9) 
1 %define api.pure full
2 %parse-param {void *_parse_state}
3 %parse-param {void *scanner}
4 %lex-param {void* scanner}
5 %locations
6 
7 %{
8 
9 #define YYDEBUG 1
10 
11 #include <errno.h>
12 #include <fnmatch.h>
13 #include <stdio.h>
14 #include <linux/compiler.h>
15 #include <linux/types.h>
16 #include <linux/zalloc.h>
17 #include "pmu.h"
18 #include "pmus.h"
19 #include "evsel.h"
20 #include "parse-events.h"
21 #include "parse-events-bison.h"
22 
23 void parse_events_error(YYLTYPE *loc, void *parse_state, void *scanner, char const *msg);
24 
25 #define ABORT_ON(val) \
26 do { \
27 	if (val) \
28 		YYABORT; \
29 } while (0)
30 
31 static struct list_head* alloc_list(void)
32 {
33 	struct list_head *list;
34 
35 	list = malloc(sizeof(*list));
36 	if (!list)
37 		return NULL;
38 
39 	INIT_LIST_HEAD(list);
40 	return list;
41 }
42 
43 static void free_list_evsel(struct list_head* list_evsel)
44 {
45 	struct evsel *evsel, *tmp;
46 
47 	list_for_each_entry_safe(evsel, tmp, list_evsel, core.node) {
48 		list_del_init(&evsel->core.node);
49 		evsel__delete(evsel);
50 	}
51 	free(list_evsel);
52 }
53 
54 %}
55 
56 %token PE_START_EVENTS PE_START_TERMS
57 %token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_TERM
58 %token PE_VALUE_SYM_TOOL
59 %token PE_EVENT_NAME
60 %token PE_RAW PE_NAME
61 %token PE_BPF_OBJECT PE_BPF_SOURCE
62 %token PE_MODIFIER_EVENT PE_MODIFIER_BP PE_BP_COLON PE_BP_SLASH
63 %token PE_LEGACY_CACHE
64 %token PE_PREFIX_MEM PE_PREFIX_RAW PE_PREFIX_GROUP
65 %token PE_ERROR
66 %token PE_KERNEL_PMU_EVENT PE_PMU_EVENT_FAKE
67 %token PE_ARRAY_ALL PE_ARRAY_RANGE
68 %token PE_DRV_CFG_TERM
69 %token PE_TERM_HW
70 %type <num> PE_VALUE
71 %type <num> PE_VALUE_SYM_HW
72 %type <num> PE_VALUE_SYM_SW
73 %type <num> PE_VALUE_SYM_TOOL
74 %type <num> PE_TERM
75 %type <num> value_sym
76 %type <str> PE_RAW
77 %type <str> PE_NAME
78 %type <str> PE_BPF_OBJECT
79 %type <str> PE_BPF_SOURCE
80 %type <str> PE_LEGACY_CACHE
81 %type <str> PE_MODIFIER_EVENT
82 %type <str> PE_MODIFIER_BP
83 %type <str> PE_EVENT_NAME
84 %type <str> PE_KERNEL_PMU_EVENT PE_PMU_EVENT_FAKE
85 %type <str> PE_DRV_CFG_TERM
86 %type <str> name_or_raw name_or_legacy
87 %destructor { free ($$); } <str>
88 %type <term> event_term
89 %destructor { parse_events_term__delete ($$); } <term>
90 %type <list_terms> event_config
91 %type <list_terms> opt_event_config
92 %type <list_terms> opt_pmu_config
93 %destructor { parse_events_terms__delete ($$); } <list_terms>
94 %type <list_evsel> event_pmu
95 %type <list_evsel> event_legacy_symbol
96 %type <list_evsel> event_legacy_cache
97 %type <list_evsel> event_legacy_mem
98 %type <list_evsel> event_legacy_tracepoint
99 %type <list_evsel> event_legacy_numeric
100 %type <list_evsel> event_legacy_raw
101 %type <list_evsel> event_bpf_file
102 %type <list_evsel> event_def
103 %type <list_evsel> event_mod
104 %type <list_evsel> event_name
105 %type <list_evsel> event
106 %type <list_evsel> events
107 %type <list_evsel> group_def
108 %type <list_evsel> group
109 %type <list_evsel> groups
110 %destructor { free_list_evsel ($$); } <list_evsel>
111 %type <tracepoint_name> tracepoint_name
112 %destructor { free ($$.sys); free ($$.event); } <tracepoint_name>
113 %type <array> array
114 %type <array> array_term
115 %type <array> array_terms
116 %destructor { free ($$.ranges); } <array>
117 %type <hardware_term> PE_TERM_HW
118 %destructor { free ($$.str); } <hardware_term>
119 
120 %union
121 {
122 	char *str;
123 	u64 num;
124 	struct list_head *list_evsel;
125 	struct list_head *list_terms;
126 	struct parse_events_term *term;
127 	struct tracepoint_name {
128 		char *sys;
129 		char *event;
130 	} tracepoint_name;
131 	struct parse_events_array array;
132 	struct hardware_term {
133 		char *str;
134 		u64 num;
135 	} hardware_term;
136 }
137 %%
138 
139 start:
140 PE_START_EVENTS start_events
141 |
142 PE_START_TERMS  start_terms
143 
144 start_events: groups
145 {
146 	struct parse_events_state *parse_state = _parse_state;
147 
148 	/* frees $1 */
149 	parse_events_update_lists($1, &parse_state->list);
150 }
151 
152 groups:
153 groups ',' group
154 {
155 	struct list_head *list  = $1;
156 	struct list_head *group = $3;
157 
158 	/* frees $3 */
159 	parse_events_update_lists(group, list);
160 	$$ = list;
161 }
162 |
163 groups ',' event
164 {
165 	struct list_head *list  = $1;
166 	struct list_head *event = $3;
167 
168 	/* frees $3 */
169 	parse_events_update_lists(event, list);
170 	$$ = list;
171 }
172 |
173 group
174 |
175 event
176 
177 group:
178 group_def ':' PE_MODIFIER_EVENT
179 {
180 	struct list_head *list = $1;
181 	int err;
182 
183 	err = parse_events__modifier_group(list, $3);
184 	free($3);
185 	if (err) {
186 		struct parse_events_state *parse_state = _parse_state;
187 		struct parse_events_error *error = parse_state->error;
188 
189 		parse_events_error__handle(error, @3.first_column,
190 					   strdup("Bad modifier"), NULL);
191 		free_list_evsel(list);
192 		YYABORT;
193 	}
194 	$$ = list;
195 }
196 |
197 group_def
198 
199 group_def:
200 PE_NAME '{' events '}'
201 {
202 	struct list_head *list = $3;
203 
204 	/* Takes ownership of $1. */
205 	parse_events__set_leader($1, list);
206 	$$ = list;
207 }
208 |
209 '{' events '}'
210 {
211 	struct list_head *list = $2;
212 
213 	parse_events__set_leader(NULL, list);
214 	$$ = list;
215 }
216 
217 events:
218 events ',' event
219 {
220 	struct list_head *event = $3;
221 	struct list_head *list  = $1;
222 
223 	/* frees $3 */
224 	parse_events_update_lists(event, list);
225 	$$ = list;
226 }
227 |
228 event
229 
230 event: event_mod
231 
232 event_mod:
233 event_name PE_MODIFIER_EVENT
234 {
235 	struct list_head *list = $1;
236 	int err;
237 
238 	/*
239 	 * Apply modifier on all events added by single event definition
240 	 * (there could be more events added for multiple tracepoint
241 	 * definitions via '*?'.
242 	 */
243 	err = parse_events__modifier_event(list, $2, false);
244 	free($2);
245 	if (err) {
246 		struct parse_events_state *parse_state = _parse_state;
247 		struct parse_events_error *error = parse_state->error;
248 
249 		parse_events_error__handle(error, @2.first_column,
250 					   strdup("Bad modifier"), NULL);
251 		free_list_evsel(list);
252 		YYABORT;
253 	}
254 	$$ = list;
255 }
256 |
257 event_name
258 
259 event_name:
260 PE_EVENT_NAME event_def
261 {
262 	int err;
263 
264 	err = parse_events_name($2, $1);
265 	free($1);
266 	if (err) {
267 		free_list_evsel($2);
268 		YYABORT;
269 	}
270 	$$ = $2;
271 }
272 |
273 event_def
274 
275 event_def: event_pmu |
276 	   event_legacy_symbol |
277 	   event_legacy_cache sep_dc |
278 	   event_legacy_mem sep_dc |
279 	   event_legacy_tracepoint sep_dc |
280 	   event_legacy_numeric sep_dc |
281 	   event_legacy_raw sep_dc |
282 	   event_bpf_file
283 
284 event_pmu:
285 PE_NAME opt_pmu_config
286 {
287 	struct parse_events_state *parse_state = _parse_state;
288 	struct parse_events_error *error = parse_state->error;
289 	struct list_head *list = NULL, *orig_terms = NULL, *terms= NULL;
290 	char *pattern = NULL;
291 
292 #define CLEANUP_YYABORT					\
293 	do {						\
294 		parse_events_terms__delete($2);		\
295 		parse_events_terms__delete(orig_terms);	\
296 		free(list);				\
297 		free($1);				\
298 		free(pattern);				\
299 		YYABORT;				\
300 	} while(0)
301 
302 	if (parse_events_copy_term_list($2, &orig_terms))
303 		CLEANUP_YYABORT;
304 
305 	if (error)
306 		error->idx = @1.first_column;
307 
308 	list = alloc_list();
309 	if (!list)
310 		CLEANUP_YYABORT;
311 	/* Attempt to add to list assuming $1 is a PMU name. */
312 	if (parse_events_add_pmu(parse_state, list, $1, $2, /*auto_merge_stats=*/false)) {
313 		struct perf_pmu *pmu = NULL;
314 		int ok = 0;
315 
316 		/* Failure to add, try wildcard expansion of $1 as a PMU name. */
317 		if (asprintf(&pattern, "%s*", $1) < 0)
318 			CLEANUP_YYABORT;
319 
320 		while ((pmu = perf_pmus__scan(pmu)) != NULL) {
321 			char *name = pmu->name;
322 
323 			if (parse_events__filter_pmu(parse_state, pmu))
324 				continue;
325 
326 			if (!strncmp(name, "uncore_", 7) &&
327 			    strncmp($1, "uncore_", 7))
328 				name += 7;
329 			if (!perf_pmu__match(pattern, name, $1) ||
330 			    !perf_pmu__match(pattern, pmu->alias_name, $1)) {
331 				bool auto_merge_stats = perf_pmu__auto_merge_stats(pmu);
332 
333 				if (parse_events_copy_term_list(orig_terms, &terms))
334 					CLEANUP_YYABORT;
335 				if (!parse_events_add_pmu(parse_state, list, pmu->name, terms,
336 							  auto_merge_stats)) {
337 					ok++;
338 					parse_state->wild_card_pmus = true;
339 				}
340 				parse_events_terms__delete(terms);
341 			}
342 		}
343 
344 		if (!ok) {
345 			/* Failure to add, assume $1 is an event name. */
346 			zfree(&list);
347 			ok = !parse_events_multi_pmu_add(parse_state, $1, $2, &list);
348 			$2 = NULL;
349 		}
350 		if (!ok)
351 			CLEANUP_YYABORT;
352 	}
353 	parse_events_terms__delete($2);
354 	parse_events_terms__delete(orig_terms);
355 	free(pattern);
356 	free($1);
357 	$$ = list;
358 #undef CLEANUP_YYABORT
359 }
360 |
361 PE_KERNEL_PMU_EVENT sep_dc
362 {
363 	struct list_head *list;
364 	int err;
365 
366 	err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list);
367 	free($1);
368 	if (err < 0)
369 		YYABORT;
370 	$$ = list;
371 }
372 |
373 PE_NAME sep_dc
374 {
375 	struct list_head *list;
376 	int err;
377 
378 	err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list);
379 	free($1);
380 	if (err < 0)
381 		YYABORT;
382 	$$ = list;
383 }
384 |
385 PE_KERNEL_PMU_EVENT opt_pmu_config
386 {
387 	struct list_head *list;
388 	int err;
389 
390 	/* frees $2 */
391 	err = parse_events_multi_pmu_add(_parse_state, $1, $2, &list);
392 	free($1);
393 	if (err < 0)
394 		YYABORT;
395 	$$ = list;
396 }
397 |
398 PE_PMU_EVENT_FAKE sep_dc
399 {
400 	struct list_head *list;
401 	int err;
402 
403 	list = alloc_list();
404 	if (!list)
405 		YYABORT;
406 
407 	err = parse_events_add_pmu(_parse_state, list, $1, /*head_config=*/NULL,
408 				   /*auto_merge_stats=*/false);
409 	free($1);
410 	if (err < 0) {
411 		free(list);
412 		YYABORT;
413 	}
414 	$$ = list;
415 }
416 |
417 PE_PMU_EVENT_FAKE opt_pmu_config
418 {
419 	struct list_head *list;
420 	int err;
421 
422 	list = alloc_list();
423 	if (!list)
424 		YYABORT;
425 
426 	err = parse_events_add_pmu(_parse_state, list, $1, $2, /*auto_merge_stats=*/false);
427 	free($1);
428 	parse_events_terms__delete($2);
429 	if (err < 0) {
430 		free(list);
431 		YYABORT;
432 	}
433 	$$ = list;
434 }
435 
436 value_sym:
437 PE_VALUE_SYM_HW
438 |
439 PE_VALUE_SYM_SW
440 
441 event_legacy_symbol:
442 value_sym '/' event_config '/'
443 {
444 	struct list_head *list;
445 	int type = $1 >> 16;
446 	int config = $1 & 255;
447 	int err;
448 	bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
449 
450 	list = alloc_list();
451 	ABORT_ON(!list);
452 	err = parse_events_add_numeric(_parse_state, list, type, config, $3, wildcard);
453 	parse_events_terms__delete($3);
454 	if (err) {
455 		free_list_evsel(list);
456 		YYABORT;
457 	}
458 	$$ = list;
459 }
460 |
461 value_sym sep_slash_slash_dc
462 {
463 	struct list_head *list;
464 	int type = $1 >> 16;
465 	int config = $1 & 255;
466 	bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
467 
468 	list = alloc_list();
469 	ABORT_ON(!list);
470 	ABORT_ON(parse_events_add_numeric(_parse_state, list, type, config,
471 					  /*head_config=*/NULL, wildcard));
472 	$$ = list;
473 }
474 |
475 PE_VALUE_SYM_TOOL sep_slash_slash_dc
476 {
477 	struct list_head *list;
478 
479 	list = alloc_list();
480 	ABORT_ON(!list);
481 	ABORT_ON(parse_events_add_tool(_parse_state, list, $1));
482 	$$ = list;
483 }
484 
485 event_legacy_cache:
486 PE_LEGACY_CACHE opt_event_config
487 {
488 	struct parse_events_state *parse_state = _parse_state;
489 	struct list_head *list;
490 	int err;
491 
492 	list = alloc_list();
493 	ABORT_ON(!list);
494 	err = parse_events_add_cache(list, &parse_state->idx, $1, parse_state, $2);
495 
496 	parse_events_terms__delete($2);
497 	free($1);
498 	if (err) {
499 		free_list_evsel(list);
500 		YYABORT;
501 	}
502 	$$ = list;
503 }
504 
505 event_legacy_mem:
506 PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config
507 {
508 	struct list_head *list;
509 	int err;
510 
511 	list = alloc_list();
512 	ABORT_ON(!list);
513 	err = parse_events_add_breakpoint(_parse_state, list,
514 					  $2, $6, $4, $7);
515 	parse_events_terms__delete($7);
516 	free($6);
517 	if (err) {
518 		free(list);
519 		YYABORT;
520 	}
521 	$$ = list;
522 }
523 |
524 PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE opt_event_config
525 {
526 	struct list_head *list;
527 	int err;
528 
529 	list = alloc_list();
530 	ABORT_ON(!list);
531 	err = parse_events_add_breakpoint(_parse_state, list,
532 					  $2, NULL, $4, $5);
533 	parse_events_terms__delete($5);
534 	if (err) {
535 		free(list);
536 		YYABORT;
537 	}
538 	$$ = list;
539 }
540 |
541 PE_PREFIX_MEM PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config
542 {
543 	struct list_head *list;
544 	int err;
545 
546 	list = alloc_list();
547 	ABORT_ON(!list);
548 	err = parse_events_add_breakpoint(_parse_state, list,
549 					  $2, $4, 0, $5);
550 	parse_events_terms__delete($5);
551 	free($4);
552 	if (err) {
553 		free(list);
554 		YYABORT;
555 	}
556 	$$ = list;
557 }
558 |
559 PE_PREFIX_MEM PE_VALUE opt_event_config
560 {
561 	struct list_head *list;
562 	int err;
563 
564 	list = alloc_list();
565 	ABORT_ON(!list);
566 	err = parse_events_add_breakpoint(_parse_state, list,
567 					  $2, NULL, 0, $3);
568 	parse_events_terms__delete($3);
569 	if (err) {
570 		free(list);
571 		YYABORT;
572 	}
573 	$$ = list;
574 }
575 
576 event_legacy_tracepoint:
577 tracepoint_name opt_event_config
578 {
579 	struct parse_events_state *parse_state = _parse_state;
580 	struct parse_events_error *error = parse_state->error;
581 	struct list_head *list;
582 	int err;
583 
584 	list = alloc_list();
585 	ABORT_ON(!list);
586 	if (error)
587 		error->idx = @1.first_column;
588 
589 	err = parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event,
590 					error, $2);
591 
592 	parse_events_terms__delete($2);
593 	free($1.sys);
594 	free($1.event);
595 	if (err) {
596 		free(list);
597 		YYABORT;
598 	}
599 	$$ = list;
600 }
601 
602 tracepoint_name:
603 PE_NAME ':' PE_NAME
604 {
605 	struct tracepoint_name tracepoint = {$1, $3};
606 
607 	$$ = tracepoint;
608 }
609 
610 event_legacy_numeric:
611 PE_VALUE ':' PE_VALUE opt_event_config
612 {
613 	struct list_head *list;
614 	int err;
615 
616 	list = alloc_list();
617 	ABORT_ON(!list);
618 	err = parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4,
619 				       /*wildcard=*/false);
620 	parse_events_terms__delete($4);
621 	if (err) {
622 		free(list);
623 		YYABORT;
624 	}
625 	$$ = list;
626 }
627 
628 event_legacy_raw:
629 PE_RAW opt_event_config
630 {
631 	struct list_head *list;
632 	int err;
633 	u64 num;
634 
635 	list = alloc_list();
636 	ABORT_ON(!list);
637 	errno = 0;
638 	num = strtoull($1 + 1, NULL, 16);
639 	ABORT_ON(errno);
640 	free($1);
641 	err = parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, num, $2,
642 				       /*wildcard=*/false);
643 	parse_events_terms__delete($2);
644 	if (err) {
645 		free(list);
646 		YYABORT;
647 	}
648 	$$ = list;
649 }
650 
651 event_bpf_file:
652 PE_BPF_OBJECT opt_event_config
653 {
654 	struct parse_events_state *parse_state = _parse_state;
655 	struct list_head *list;
656 	int err;
657 
658 	list = alloc_list();
659 	ABORT_ON(!list);
660 	err = parse_events_load_bpf(parse_state, list, $1, false, $2);
661 	parse_events_terms__delete($2);
662 	free($1);
663 	if (err) {
664 		free(list);
665 		YYABORT;
666 	}
667 	$$ = list;
668 }
669 |
670 PE_BPF_SOURCE opt_event_config
671 {
672 	struct list_head *list;
673 	int err;
674 
675 	list = alloc_list();
676 	ABORT_ON(!list);
677 	err = parse_events_load_bpf(_parse_state, list, $1, true, $2);
678 	parse_events_terms__delete($2);
679 	if (err) {
680 		free(list);
681 		YYABORT;
682 	}
683 	$$ = list;
684 }
685 
686 opt_event_config:
687 '/' event_config '/'
688 {
689 	$$ = $2;
690 }
691 |
692 '/' '/'
693 {
694 	$$ = NULL;
695 }
696 |
697 {
698 	$$ = NULL;
699 }
700 
701 opt_pmu_config:
702 '/' event_config '/'
703 {
704 	$$ = $2;
705 }
706 |
707 '/' '/'
708 {
709 	$$ = NULL;
710 }
711 
712 start_terms: event_config
713 {
714 	struct parse_events_state *parse_state = _parse_state;
715 	if (parse_state->terms) {
716 		parse_events_terms__delete ($1);
717 		YYABORT;
718 	}
719 	parse_state->terms = $1;
720 }
721 
722 event_config:
723 event_config ',' event_term
724 {
725 	struct list_head *head = $1;
726 	struct parse_events_term *term = $3;
727 
728 	if (!head) {
729 		parse_events_term__delete(term);
730 		YYABORT;
731 	}
732 	list_add_tail(&term->list, head);
733 	$$ = $1;
734 }
735 |
736 event_term
737 {
738 	struct list_head *head = malloc(sizeof(*head));
739 	struct parse_events_term *term = $1;
740 
741 	ABORT_ON(!head);
742 	INIT_LIST_HEAD(head);
743 	list_add_tail(&term->list, head);
744 	$$ = head;
745 }
746 
747 name_or_raw: PE_RAW | PE_NAME | PE_LEGACY_CACHE
748 
749 name_or_legacy: PE_NAME | PE_LEGACY_CACHE
750 
751 event_term:
752 PE_RAW
753 {
754 	struct parse_events_term *term;
755 
756 	if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_RAW,
757 					strdup("raw"), $1, &@1, &@1)) {
758 		free($1);
759 		YYABORT;
760 	}
761 	$$ = term;
762 }
763 |
764 name_or_raw '=' name_or_legacy
765 {
766 	struct parse_events_term *term;
767 
768 	if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
769 					$1, $3, &@1, &@3)) {
770 		free($1);
771 		free($3);
772 		YYABORT;
773 	}
774 	$$ = term;
775 }
776 |
777 name_or_raw '=' PE_VALUE
778 {
779 	struct parse_events_term *term;
780 
781 	if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
782 					$1, $3, false, &@1, &@3)) {
783 		free($1);
784 		YYABORT;
785 	}
786 	$$ = term;
787 }
788 |
789 name_or_raw '=' PE_TERM_HW
790 {
791 	struct parse_events_term *term;
792 
793 	if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
794 					$1, $3.str, &@1, &@3)) {
795 		free($1);
796 		free($3.str);
797 		YYABORT;
798 	}
799 	$$ = term;
800 }
801 |
802 PE_LEGACY_CACHE
803 {
804 	struct parse_events_term *term;
805 
806 	if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
807 					$1, 1, true, &@1, NULL)) {
808 		free($1);
809 		YYABORT;
810 	}
811 	$$ = term;
812 }
813 |
814 PE_NAME
815 {
816 	struct parse_events_term *term;
817 
818 	if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
819 					$1, 1, true, &@1, NULL)) {
820 		free($1);
821 		YYABORT;
822 	}
823 	$$ = term;
824 }
825 |
826 PE_TERM_HW
827 {
828 	struct parse_events_term *term;
829 
830 	if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_HARDWARE,
831 				   $1.str, $1.num & 255, false, &@1, NULL)) {
832 		free($1.str);
833 		YYABORT;
834 	}
835 	$$ = term;
836 }
837 |
838 PE_TERM '=' name_or_legacy
839 {
840 	struct parse_events_term *term;
841 
842 	if (parse_events_term__str(&term, (int)$1, NULL, $3, &@1, &@3)) {
843 		free($3);
844 		YYABORT;
845 	}
846 	$$ = term;
847 }
848 |
849 PE_TERM '=' PE_TERM_HW
850 {
851 	struct parse_events_term *term;
852 
853 	if (parse_events_term__str(&term, (int)$1, NULL, $3.str, &@1, &@3)) {
854 		free($3.str);
855 		YYABORT;
856 	}
857 	$$ = term;
858 }
859 |
860 PE_TERM '=' PE_TERM
861 {
862 	struct parse_events_term *term;
863 
864 	ABORT_ON(parse_events_term__term(&term, (int)$1, (int)$3, &@1, &@3));
865 	$$ = term;
866 }
867 |
868 PE_TERM '=' PE_VALUE
869 {
870 	struct parse_events_term *term;
871 
872 	ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, $3, false, &@1, &@3));
873 	$$ = term;
874 }
875 |
876 PE_TERM
877 {
878 	struct parse_events_term *term;
879 
880 	ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, 1, true, &@1, NULL));
881 	$$ = term;
882 }
883 |
884 name_or_raw array '=' name_or_legacy
885 {
886 	struct parse_events_term *term;
887 
888 	if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
889 					$1, $4, &@1, &@4)) {
890 		free($1);
891 		free($4);
892 		free($2.ranges);
893 		YYABORT;
894 	}
895 	term->array = $2;
896 	$$ = term;
897 }
898 |
899 name_or_raw array '=' PE_VALUE
900 {
901 	struct parse_events_term *term;
902 
903 	if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
904 					$1, $4, false, &@1, &@4)) {
905 		free($1);
906 		free($2.ranges);
907 		YYABORT;
908 	}
909 	term->array = $2;
910 	$$ = term;
911 }
912 |
913 PE_DRV_CFG_TERM
914 {
915 	struct parse_events_term *term;
916 	char *config = strdup($1);
917 
918 	ABORT_ON(!config);
919 	if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_DRV_CFG,
920 					config, $1, &@1, NULL)) {
921 		free($1);
922 		free(config);
923 		YYABORT;
924 	}
925 	$$ = term;
926 }
927 
928 array:
929 '[' array_terms ']'
930 {
931 	$$ = $2;
932 }
933 |
934 PE_ARRAY_ALL
935 {
936 	$$.nr_ranges = 0;
937 	$$.ranges = NULL;
938 }
939 
940 array_terms:
941 array_terms ',' array_term
942 {
943 	struct parse_events_array new_array;
944 
945 	new_array.nr_ranges = $1.nr_ranges + $3.nr_ranges;
946 	new_array.ranges = realloc($1.ranges,
947 				sizeof(new_array.ranges[0]) *
948 				new_array.nr_ranges);
949 	ABORT_ON(!new_array.ranges);
950 	memcpy(&new_array.ranges[$1.nr_ranges], $3.ranges,
951 	       $3.nr_ranges * sizeof(new_array.ranges[0]));
952 	free($3.ranges);
953 	$$ = new_array;
954 }
955 |
956 array_term
957 
958 array_term:
959 PE_VALUE
960 {
961 	struct parse_events_array array;
962 
963 	array.nr_ranges = 1;
964 	array.ranges = malloc(sizeof(array.ranges[0]));
965 	ABORT_ON(!array.ranges);
966 	array.ranges[0].start = $1;
967 	array.ranges[0].length = 1;
968 	$$ = array;
969 }
970 |
971 PE_VALUE PE_ARRAY_RANGE PE_VALUE
972 {
973 	struct parse_events_array array;
974 
975 	ABORT_ON($3 < $1);
976 	array.nr_ranges = 1;
977 	array.ranges = malloc(sizeof(array.ranges[0]));
978 	ABORT_ON(!array.ranges);
979 	array.ranges[0].start = $1;
980 	array.ranges[0].length = $3 - $1 + 1;
981 	$$ = array;
982 }
983 
984 sep_dc: ':' |
985 
986 sep_slash_slash_dc: '/' '/' | ':' |
987 
988 %%
989 
990 void parse_events_error(YYLTYPE *loc, void *parse_state,
991 			void *scanner __maybe_unused,
992 			char const *msg __maybe_unused)
993 {
994 	parse_events_evlist_error(parse_state, loc->last_column, "parser error");
995 }
996