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