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 #define PE_ABORT(val) \
38 static struct list_head* alloc_list(void)
40 struct list_head *list;
42 list = malloc(sizeof(*list));
50 static void free_list_evsel(struct list_head* list_evsel)
52 struct evsel *evsel, *tmp;
54 list_for_each_entry_safe(evsel, tmp, list_evsel, core.node) {
55 list_del_init(&evsel->core.node);
63 %token PE_START_EVENTS PE_START_TERMS
64 %token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_TERM
65 %token PE_VALUE_SYM_TOOL
68 %token PE_BPF_OBJECT PE_BPF_SOURCE
69 %token PE_MODIFIER_EVENT PE_MODIFIER_BP PE_BP_COLON PE_BP_SLASH
70 %token PE_LEGACY_CACHE
73 %token PE_ARRAY_ALL PE_ARRAY_RANGE
74 %token PE_DRV_CFG_TERM
77 %type <num> PE_VALUE_SYM_HW
78 %type <num> PE_VALUE_SYM_SW
79 %type <num> PE_VALUE_SYM_TOOL
84 %type <str> PE_BPF_OBJECT
85 %type <str> PE_BPF_SOURCE
86 %type <str> PE_LEGACY_CACHE
87 %type <str> PE_MODIFIER_EVENT
88 %type <str> PE_MODIFIER_BP
89 %type <str> PE_EVENT_NAME
90 %type <str> PE_DRV_CFG_TERM
91 %type <str> name_or_raw name_or_legacy
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>
119 %type <array> array_term
120 %type <array> array_terms
121 %destructor { free ($$.ranges); } <array>
122 %type <hardware_term> PE_TERM_HW
123 %destructor { free ($$.str); } <hardware_term>
129 struct list_head *list_evsel;
130 struct list_head *list_terms;
131 struct parse_events_term *term;
132 struct tracepoint_name {
136 struct parse_events_array array;
137 struct hardware_term {
145 PE_START_EVENTS start_events
147 PE_START_TERMS start_terms
151 struct parse_events_state *parse_state = _parse_state;
154 parse_events_update_lists($1, &parse_state->list);
160 struct list_head *list = $1;
161 struct list_head *group = $3;
164 parse_events_update_lists(group, list);
170 struct list_head *list = $1;
171 struct list_head *event = $3;
174 parse_events_update_lists(event, list);
183 group_def ':' PE_MODIFIER_EVENT
185 struct list_head *list = $1;
188 err = parse_events__modifier_group(list, $3);
191 struct parse_events_state *parse_state = _parse_state;
192 struct parse_events_error *error = parse_state->error;
194 parse_events_error__handle(error, @3.first_column,
195 strdup("Bad modifier"), NULL);
196 free_list_evsel(list);
205 PE_NAME '{' events '}'
207 struct list_head *list = $3;
209 /* Takes ownership of $1. */
210 parse_events__set_leader($1, list);
216 struct list_head *list = $2;
218 parse_events__set_leader(NULL, list);
225 struct list_head *event = $3;
226 struct list_head *list = $1;
229 parse_events_update_lists(event, list);
238 event_name PE_MODIFIER_EVENT
240 struct list_head *list = $1;
244 * Apply modifier on all events added by single event definition
245 * (there could be more events added for multiple tracepoint
246 * definitions via '*?'.
248 err = parse_events__modifier_event(list, $2, false);
251 struct parse_events_state *parse_state = _parse_state;
252 struct parse_events_error *error = parse_state->error;
254 parse_events_error__handle(error, @2.first_column,
255 strdup("Bad modifier"), NULL);
256 free_list_evsel(list);
265 PE_EVENT_NAME event_def
269 err = parse_events_name($2, $1);
280 event_def: event_pmu |
281 event_legacy_symbol |
282 event_legacy_cache sep_dc |
283 event_legacy_mem sep_dc |
284 event_legacy_tracepoint sep_dc |
285 event_legacy_numeric sep_dc |
286 event_legacy_raw sep_dc |
290 PE_NAME opt_pmu_config
292 struct parse_events_state *parse_state = _parse_state;
293 struct list_head *list = NULL, *orig_terms = NULL, *terms= NULL;
294 struct parse_events_error *error = parse_state->error;
295 char *pattern = NULL;
299 parse_events_terms__delete($2); \
300 parse_events_terms__delete(orig_terms); \
307 error->idx = @1.first_column;
309 if (parse_events_copy_term_list($2, &orig_terms)) {
319 /* Attempt to add to list assuming $1 is a PMU name. */
320 if (parse_events_add_pmu(parse_state, list, $1, $2, /*auto_merge_stats=*/false)) {
321 struct perf_pmu *pmu = NULL;
324 /* Failure to add, try wildcard expansion of $1 as a PMU name. */
325 if (asprintf(&pattern, "%s*", $1) < 0) {
330 while ((pmu = perf_pmus__scan(pmu)) != NULL) {
331 char *name = pmu->name;
333 if (parse_events__filter_pmu(parse_state, pmu))
336 if (!strncmp(name, "uncore_", 7) &&
337 strncmp($1, "uncore_", 7))
339 if (!perf_pmu__match(pattern, name, $1) ||
340 !perf_pmu__match(pattern, pmu->alias_name, $1)) {
341 bool auto_merge_stats = perf_pmu__auto_merge_stats(pmu);
343 if (parse_events_copy_term_list(orig_terms, &terms)) {
347 if (!parse_events_add_pmu(parse_state, list, pmu->name, terms,
350 parse_state->wild_card_pmus = true;
352 parse_events_terms__delete(terms);
357 /* Failure to add, assume $1 is an event name. */
359 ok = !parse_events_multi_pmu_add(parse_state, $1, $2, &list);
375 struct list_head *list;
378 err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list);
391 value_sym '/' event_config '/'
393 struct list_head *list;
395 int config = $1 & 255;
397 bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
402 err = parse_events_add_numeric(_parse_state, list, type, config, $3, wildcard);
403 parse_events_terms__delete($3);
405 free_list_evsel(list);
411 value_sym sep_slash_slash_dc
413 struct list_head *list;
415 int config = $1 & 255;
416 bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE);
422 err = parse_events_add_numeric(_parse_state, list, type, config, /*head_config=*/NULL, wildcard);
428 PE_VALUE_SYM_TOOL sep_slash_slash_dc
430 struct list_head *list;
436 err = parse_events_add_tool(_parse_state, list, $1);
443 PE_LEGACY_CACHE opt_event_config
445 struct parse_events_state *parse_state = _parse_state;
446 struct list_head *list;
453 err = parse_events_add_cache(list, &parse_state->idx, $1, parse_state, $2);
455 parse_events_terms__delete($2);
458 free_list_evsel(list);
465 PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config
467 struct list_head *list;
474 err = parse_events_add_breakpoint(_parse_state, list,
476 parse_events_terms__delete($7);
485 PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE opt_event_config
487 struct list_head *list;
494 err = parse_events_add_breakpoint(_parse_state, list,
496 parse_events_terms__delete($5);
504 PE_PREFIX_MEM PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config
506 struct list_head *list;
513 err = parse_events_add_breakpoint(_parse_state, list,
515 parse_events_terms__delete($5);
524 PE_PREFIX_MEM PE_VALUE opt_event_config
526 struct list_head *list;
532 err = parse_events_add_breakpoint(_parse_state, list,
534 parse_events_terms__delete($3);
542 event_legacy_tracepoint:
543 tracepoint_name opt_event_config
545 struct parse_events_state *parse_state = _parse_state;
546 struct parse_events_error *error = parse_state->error;
547 struct list_head *list;
554 error->idx = @1.first_column;
556 err = parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event,
559 parse_events_terms__delete($2);
572 struct tracepoint_name tracepoint = {$1, $3};
577 event_legacy_numeric:
578 PE_VALUE ':' PE_VALUE opt_event_config
580 struct list_head *list;
586 err = parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4,
588 parse_events_terms__delete($4);
597 PE_RAW opt_event_config
599 struct list_head *list;
607 num = strtoull($1 + 1, NULL, 16);
610 err = parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, num, $2,
612 parse_events_terms__delete($2);
621 PE_BPF_OBJECT opt_event_config
623 struct parse_events_state *parse_state = _parse_state;
624 struct list_head *list;
630 err = parse_events_load_bpf(parse_state, list, $1, false, $2);
631 parse_events_terms__delete($2);
640 PE_BPF_SOURCE opt_event_config
642 struct list_head *list;
648 err = parse_events_load_bpf(_parse_state, list, $1, true, $2);
649 parse_events_terms__delete($2);
683 start_terms: event_config
685 struct parse_events_state *parse_state = _parse_state;
686 if (parse_state->terms) {
687 parse_events_terms__delete ($1);
690 parse_state->terms = $1;
694 event_config ',' event_term
696 struct list_head *head = $1;
697 struct parse_events_term *term = $3;
700 parse_events_term__delete(term);
703 list_add_tail(&term->list, head);
709 struct list_head *head = malloc(sizeof(*head));
710 struct parse_events_term *term = $1;
714 INIT_LIST_HEAD(head);
715 list_add_tail(&term->list, head);
719 name_or_raw: PE_RAW | PE_NAME | PE_LEGACY_CACHE
721 name_or_legacy: PE_NAME | PE_LEGACY_CACHE
726 struct parse_events_term *term;
727 int err = parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_RAW,
728 strdup("raw"), $1, &@1, &@1);
737 name_or_raw '=' name_or_legacy
739 struct parse_events_term *term;
740 int err = parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER, $1, $3, &@1, &@3);
750 name_or_raw '=' PE_VALUE
752 struct parse_events_term *term;
753 int err = parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
754 $1, $3, false, &@1, &@3);
763 name_or_raw '=' PE_TERM_HW
765 struct parse_events_term *term;
766 int err = parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER,
767 $1, $3.str, &@1, &@3);
779 struct parse_events_term *term;
780 int err = parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE,
781 $1, 1, true, &@1, NULL);
792 struct parse_events_term *term;
793 int err = parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
794 $1, 1, true, &@1, NULL);
805 struct parse_events_term *term;
806 int err = parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_HARDWARE,
807 $1.str, $1.num & 255, false, &@1, NULL);
816 PE_TERM '=' name_or_legacy
818 struct parse_events_term *term;
819 int err = parse_events_term__str(&term, (int)$1, NULL, $3, &@1, &@3);
828 PE_TERM '=' PE_TERM_HW
830 struct parse_events_term *term;
831 int err = parse_events_term__str(&term, (int)$1, NULL, $3.str, &@1, &@3);
842 struct parse_events_term *term;
843 int err = parse_events_term__term(&term, (int)$1, (int)$3, &@1, &@3);
853 struct parse_events_term *term;
854 int err = parse_events_term__num(&term, (int)$1, NULL, $3, false, &@1, &@3);
864 struct parse_events_term *term;
865 int err = parse_events_term__num(&term, (int)$1, NULL, 1, true, &@1, NULL);
873 name_or_raw array '=' name_or_legacy
875 struct parse_events_term *term;
876 int err = parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER, $1, $4, &@1, &@4);
888 name_or_raw array '=' PE_VALUE
890 struct parse_events_term *term;
891 int err = parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, $1, $4, false, &@1, &@4);
904 struct parse_events_term *term;
905 char *config = strdup($1);
910 err = parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_DRV_CFG, config, $1, &@1, NULL);
932 array_terms ',' array_term
934 struct parse_events_array new_array;
936 new_array.nr_ranges = $1.nr_ranges + $3.nr_ranges;
937 new_array.ranges = realloc($1.ranges,
938 sizeof(new_array.ranges[0]) *
939 new_array.nr_ranges);
940 if (!new_array.ranges)
942 memcpy(&new_array.ranges[$1.nr_ranges], $3.ranges,
943 $3.nr_ranges * sizeof(new_array.ranges[0]));
953 struct parse_events_array array;
956 array.ranges = malloc(sizeof(array.ranges[0]));
959 array.ranges[0].start = $1;
960 array.ranges[0].length = 1;
964 PE_VALUE PE_ARRAY_RANGE PE_VALUE
966 struct parse_events_array array;
970 array.ranges = malloc(sizeof(array.ranges[0]));
973 array.ranges[0].start = $1;
974 array.ranges[0].length = $3 - $1 + 1;
980 sep_slash_slash_dc: '/' '/' | ':' |
984 void parse_events_error(YYLTYPE *loc, void *parse_state,
985 void *scanner __maybe_unused,
986 char const *msg __maybe_unused)
988 parse_events_evlist_error(parse_state, loc->last_column, "parser error");