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