2 %parse-param {void *_parse_state}
3 %parse-param {void *scanner}
4 %lex-param {void* scanner}
14 #include <linux/compiler.h>
15 #include <linux/types.h>
16 #include <linux/zalloc.h>
20 #include "parse-events.h"
21 #include "parse-events-bison.h"
23 void parse_events_error(YYLTYPE *loc, void *parse_state, void *scanner, char const *msg);
25 #define ABORT_ON(val) \
31 static struct list_head* alloc_list(void)
33 struct list_head *list;
35 list = malloc(sizeof(*list));
43 static void free_list_evsel(struct list_head* list_evsel)
45 struct evsel *evsel, *tmp;
47 list_for_each_entry_safe(evsel, tmp, list_evsel, core.node) {
48 list_del_init(&evsel->core.node);
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
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
66 %token PE_ARRAY_ALL PE_ARRAY_RANGE
67 %token PE_DRV_CFG_TERM
70 %type <num> PE_VALUE_SYM_HW
71 %type <num> PE_VALUE_SYM_SW
72 %type <num> PE_VALUE_SYM_TOOL
77 %type <str> PE_BPF_OBJECT
78 %type <str> PE_BPF_SOURCE
79 %type <str> PE_LEGACY_CACHE
80 %type <str> PE_MODIFIER_EVENT
81 %type <str> PE_MODIFIER_BP
82 %type <str> PE_EVENT_NAME
83 %type <str> PE_DRV_CFG_TERM
84 %type <str> name_or_raw name_or_legacy
85 %destructor { free ($$); } <str>
86 %type <term> event_term
87 %destructor { parse_events_term__delete ($$); } <term>
88 %type <list_terms> event_config
89 %type <list_terms> opt_event_config
90 %type <list_terms> opt_pmu_config
91 %destructor { parse_events_terms__delete ($$); } <list_terms>
92 %type <list_evsel> event_pmu
93 %type <list_evsel> event_legacy_symbol
94 %type <list_evsel> event_legacy_cache
95 %type <list_evsel> event_legacy_mem
96 %type <list_evsel> event_legacy_tracepoint
97 %type <list_evsel> event_legacy_numeric
98 %type <list_evsel> event_legacy_raw
99 %type <list_evsel> event_bpf_file
100 %type <list_evsel> event_def
101 %type <list_evsel> event_mod
102 %type <list_evsel> event_name
103 %type <list_evsel> event
104 %type <list_evsel> events
105 %type <list_evsel> group_def
106 %type <list_evsel> group
107 %type <list_evsel> groups
108 %destructor { free_list_evsel ($$); } <list_evsel>
109 %type <tracepoint_name> tracepoint_name
110 %destructor { free ($$.sys); free ($$.event); } <tracepoint_name>
112 %type <array> array_term
113 %type <array> array_terms
114 %destructor { free ($$.ranges); } <array>
115 %type <hardware_term> PE_TERM_HW
116 %destructor { free ($$.str); } <hardware_term>
122 struct list_head *list_evsel;
123 struct list_head *list_terms;
124 struct parse_events_term *term;
125 struct tracepoint_name {
129 struct parse_events_array array;
130 struct hardware_term {
138 PE_START_EVENTS start_events
140 PE_START_TERMS start_terms
144 struct parse_events_state *parse_state = _parse_state;
147 parse_events_update_lists($1, &parse_state->list);
153 struct list_head *list = $1;
154 struct list_head *group = $3;
157 parse_events_update_lists(group, list);
163 struct list_head *list = $1;
164 struct list_head *event = $3;
167 parse_events_update_lists(event, list);
176 group_def ':' PE_MODIFIER_EVENT
178 struct list_head *list = $1;
181 err = parse_events__modifier_group(list, $3);
184 struct parse_events_state *parse_state = _parse_state;
185 struct parse_events_error *error = parse_state->error;
187 parse_events_error__handle(error, @3.first_column,
188 strdup("Bad modifier"), NULL);
189 free_list_evsel(list);
198 PE_NAME '{' events '}'
200 struct list_head *list = $3;
202 /* Takes ownership of $1. */
203 parse_events__set_leader($1, list);
209 struct list_head *list = $2;
211 parse_events__set_leader(NULL, list);
218 struct list_head *event = $3;
219 struct list_head *list = $1;
222 parse_events_update_lists(event, list);
231 event_name PE_MODIFIER_EVENT
233 struct list_head *list = $1;
237 * Apply modifier on all events added by single event definition
238 * (there could be more events added for multiple tracepoint
239 * definitions via '*?'.
241 err = parse_events__modifier_event(list, $2, false);
244 struct parse_events_state *parse_state = _parse_state;
245 struct parse_events_error *error = parse_state->error;
247 parse_events_error__handle(error, @2.first_column,
248 strdup("Bad modifier"), NULL);
249 free_list_evsel(list);
258 PE_EVENT_NAME event_def
262 err = parse_events_name($2, $1);
273 event_def: event_pmu |
274 event_legacy_symbol |
275 event_legacy_cache sep_dc |
276 event_legacy_mem sep_dc |
277 event_legacy_tracepoint sep_dc |
278 event_legacy_numeric sep_dc |
279 event_legacy_raw sep_dc |
283 PE_NAME opt_pmu_config
285 struct parse_events_state *parse_state = _parse_state;
286 struct list_head *list = NULL, *orig_terms = NULL, *terms= NULL;
287 struct parse_events_error *error = parse_state->error;
288 char *pattern = NULL;
292 parse_events_terms__delete($2); \
293 parse_events_terms__delete(orig_terms); \
300 error->idx = @1.first_column;
302 if (parse_events_copy_term_list($2, &orig_terms)) {
312 /* Attempt to add to list assuming $1 is a PMU name. */
313 if (parse_events_add_pmu(parse_state, list, $1, $2, /*auto_merge_stats=*/false)) {
314 struct perf_pmu *pmu = NULL;
317 /* Failure to add, try wildcard expansion of $1 as a PMU name. */
318 if (asprintf(&pattern, "%s*", $1) < 0) {
323 while ((pmu = perf_pmus__scan(pmu)) != NULL) {
324 char *name = pmu->name;
326 if (parse_events__filter_pmu(parse_state, pmu))
329 if (!strncmp(name, "uncore_", 7) &&
330 strncmp($1, "uncore_", 7))
332 if (!perf_pmu__match(pattern, name, $1) ||
333 !perf_pmu__match(pattern, pmu->alias_name, $1)) {
334 bool auto_merge_stats = perf_pmu__auto_merge_stats(pmu);
336 if (parse_events_copy_term_list(orig_terms, &terms)) {
340 if (!parse_events_add_pmu(parse_state, list, pmu->name, terms,
343 parse_state->wild_card_pmus = true;
345 parse_events_terms__delete(terms);
350 /* Failure to add, assume $1 is an event name. */
352 ok = !parse_events_multi_pmu_add(parse_state, $1, $2, &list);
368 struct list_head *list;
371 err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list);
384 value_sym '/' event_config '/'
386 struct list_head *list;
388 int config = $1 & 255;
390 bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
395 err = parse_events_add_numeric(_parse_state, list, type, config, $3, wildcard);
396 parse_events_terms__delete($3);
398 free_list_evsel(list);
404 value_sym sep_slash_slash_dc
406 struct list_head *list;
408 int config = $1 & 255;
409 bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
414 ABORT_ON(parse_events_add_numeric(_parse_state, list, type, config,
415 /*head_config=*/NULL, wildcard));
419 PE_VALUE_SYM_TOOL sep_slash_slash_dc
421 struct list_head *list;
426 ABORT_ON(parse_events_add_tool(_parse_state, list, $1));
431 PE_LEGACY_CACHE opt_event_config
433 struct parse_events_state *parse_state = _parse_state;
434 struct list_head *list;
441 err = parse_events_add_cache(list, &parse_state->idx, $1, parse_state, $2);
443 parse_events_terms__delete($2);
446 free_list_evsel(list);
453 PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config
455 struct list_head *list;
462 err = parse_events_add_breakpoint(_parse_state, list,
464 parse_events_terms__delete($7);
473 PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE opt_event_config
475 struct list_head *list;
482 err = parse_events_add_breakpoint(_parse_state, list,
484 parse_events_terms__delete($5);
492 PE_PREFIX_MEM PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config
494 struct list_head *list;
501 err = parse_events_add_breakpoint(_parse_state, list,
503 parse_events_terms__delete($5);
512 PE_PREFIX_MEM PE_VALUE opt_event_config
514 struct list_head *list;
520 err = parse_events_add_breakpoint(_parse_state, list,
522 parse_events_terms__delete($3);
530 event_legacy_tracepoint:
531 tracepoint_name opt_event_config
533 struct parse_events_state *parse_state = _parse_state;
534 struct parse_events_error *error = parse_state->error;
535 struct list_head *list;
542 error->idx = @1.first_column;
544 err = parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event,
547 parse_events_terms__delete($2);
560 struct tracepoint_name tracepoint = {$1, $3};
565 event_legacy_numeric:
566 PE_VALUE ':' PE_VALUE opt_event_config
568 struct list_head *list;
574 err = parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4,
576 parse_events_terms__delete($4);
585 PE_RAW opt_event_config
587 struct list_head *list;
595 num = strtoull($1 + 1, NULL, 16);
598 err = parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, num, $2,
600 parse_events_terms__delete($2);
609 PE_BPF_OBJECT opt_event_config
611 struct parse_events_state *parse_state = _parse_state;
612 struct list_head *list;
618 err = parse_events_load_bpf(parse_state, list, $1, false, $2);
619 parse_events_terms__delete($2);
628 PE_BPF_SOURCE opt_event_config
630 struct list_head *list;
636 err = parse_events_load_bpf(_parse_state, list, $1, true, $2);
637 parse_events_terms__delete($2);
671 start_terms: event_config
673 struct parse_events_state *parse_state = _parse_state;
674 if (parse_state->terms) {
675 parse_events_terms__delete ($1);
678 parse_state->terms = $1;
682 event_config ',' event_term
684 struct list_head *head = $1;
685 struct parse_events_term *term = $3;
688 parse_events_term__delete(term);
691 list_add_tail(&term->list, head);
697 struct list_head *head = malloc(sizeof(*head));
698 struct parse_events_term *term = $1;
702 INIT_LIST_HEAD(head);
703 list_add_tail(&term->list, head);
707 name_or_raw: PE_RAW | PE_NAME | PE_LEGACY_CACHE
709 name_or_legacy: PE_NAME | PE_LEGACY_CACHE
714 struct parse_events_term *term;
716 if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_RAW,
717 strdup("raw"), $1, &@1, &@1)) {
724 name_or_raw '=' name_or_legacy
726 struct parse_events_term *term;
728 if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
737 name_or_raw '=' PE_VALUE
739 struct parse_events_term *term;
741 if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
742 $1, $3, false, &@1, &@3)) {
749 name_or_raw '=' PE_TERM_HW
751 struct parse_events_term *term;
753 if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
754 $1, $3.str, &@1, &@3)) {
764 struct parse_events_term *term;
766 if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
767 $1, 1, true, &@1, NULL)) {
776 struct parse_events_term *term;
778 if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
779 $1, 1, true, &@1, NULL)) {
788 struct parse_events_term *term;
790 if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_HARDWARE,
791 $1.str, $1.num & 255, false, &@1, NULL)) {
798 PE_TERM '=' name_or_legacy
800 struct parse_events_term *term;
802 if (parse_events_term__str(&term, (int)$1, NULL, $3, &@1, &@3)) {
809 PE_TERM '=' PE_TERM_HW
811 struct parse_events_term *term;
813 if (parse_events_term__str(&term, (int)$1, NULL, $3.str, &@1, &@3)) {
822 struct parse_events_term *term;
824 ABORT_ON(parse_events_term__term(&term, (int)$1, (int)$3, &@1, &@3));
830 struct parse_events_term *term;
832 ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, $3, false, &@1, &@3));
838 struct parse_events_term *term;
840 ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, 1, true, &@1, NULL));
844 name_or_raw array '=' name_or_legacy
846 struct parse_events_term *term;
848 if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
859 name_or_raw array '=' PE_VALUE
861 struct parse_events_term *term;
863 if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
864 $1, $4, false, &@1, &@4)) {
875 struct parse_events_term *term;
876 char *config = strdup($1);
880 if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_DRV_CFG,
881 config, $1, &@1, NULL)) {
902 array_terms ',' array_term
904 struct parse_events_array new_array;
906 new_array.nr_ranges = $1.nr_ranges + $3.nr_ranges;
907 new_array.ranges = realloc($1.ranges,
908 sizeof(new_array.ranges[0]) *
909 new_array.nr_ranges);
910 if (!new_array.ranges)
912 memcpy(&new_array.ranges[$1.nr_ranges], $3.ranges,
913 $3.nr_ranges * sizeof(new_array.ranges[0]));
923 struct parse_events_array array;
926 array.ranges = malloc(sizeof(array.ranges[0]));
929 array.ranges[0].start = $1;
930 array.ranges[0].length = 1;
934 PE_VALUE PE_ARRAY_RANGE PE_VALUE
936 struct parse_events_array array;
940 array.ranges = malloc(sizeof(array.ranges[0]));
943 array.ranges[0].start = $1;
944 array.ranges[0].length = $3 - $1 + 1;
950 sep_slash_slash_dc: '/' '/' | ':' |
954 void parse_events_error(YYLTYPE *loc, void *parse_state,
955 void *scanner __maybe_unused,
956 char const *msg __maybe_unused)
958 parse_events_evlist_error(parse_state, loc->last_column, "parser error");