1 #include <linux/hw_breakpoint.h>
7 #include "parse-options.h"
8 #include "parse-events.h"
14 #include "bpf-loader.h"
16 #include <api/fs/tracing_path.h>
17 #include "parse-events-bison.h"
18 #define YY_EXTRA_TYPE int
19 #include "parse-events-flex.h"
21 #include "thread_map.h"
25 #define MAX_NAME_LEN 100
28 extern int parse_events_debug;
30 int parse_events_parse(void *data, void *scanner);
31 static int get_config_terms(struct list_head *head_config,
32 struct list_head *head_terms __maybe_unused);
34 static struct perf_pmu_event_symbol *perf_pmu_events_list;
36 * The variable indicates the number of supported pmu event symbols.
37 * 0 means not initialized and ready to init
38 * -1 means failed to init, don't try anymore
39 * >0 is the number of supported pmu event symbols
41 static int perf_pmu_events_list_num;
43 struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
44 [PERF_COUNT_HW_CPU_CYCLES] = {
45 .symbol = "cpu-cycles",
48 [PERF_COUNT_HW_INSTRUCTIONS] = {
49 .symbol = "instructions",
52 [PERF_COUNT_HW_CACHE_REFERENCES] = {
53 .symbol = "cache-references",
56 [PERF_COUNT_HW_CACHE_MISSES] = {
57 .symbol = "cache-misses",
60 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = {
61 .symbol = "branch-instructions",
64 [PERF_COUNT_HW_BRANCH_MISSES] = {
65 .symbol = "branch-misses",
68 [PERF_COUNT_HW_BUS_CYCLES] = {
69 .symbol = "bus-cycles",
72 [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = {
73 .symbol = "stalled-cycles-frontend",
74 .alias = "idle-cycles-frontend",
76 [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = {
77 .symbol = "stalled-cycles-backend",
78 .alias = "idle-cycles-backend",
80 [PERF_COUNT_HW_REF_CPU_CYCLES] = {
81 .symbol = "ref-cycles",
86 struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
87 [PERF_COUNT_SW_CPU_CLOCK] = {
88 .symbol = "cpu-clock",
91 [PERF_COUNT_SW_TASK_CLOCK] = {
92 .symbol = "task-clock",
95 [PERF_COUNT_SW_PAGE_FAULTS] = {
96 .symbol = "page-faults",
99 [PERF_COUNT_SW_CONTEXT_SWITCHES] = {
100 .symbol = "context-switches",
103 [PERF_COUNT_SW_CPU_MIGRATIONS] = {
104 .symbol = "cpu-migrations",
105 .alias = "migrations",
107 [PERF_COUNT_SW_PAGE_FAULTS_MIN] = {
108 .symbol = "minor-faults",
111 [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = {
112 .symbol = "major-faults",
115 [PERF_COUNT_SW_ALIGNMENT_FAULTS] = {
116 .symbol = "alignment-faults",
119 [PERF_COUNT_SW_EMULATION_FAULTS] = {
120 .symbol = "emulation-faults",
123 [PERF_COUNT_SW_DUMMY] = {
127 [PERF_COUNT_SW_BPF_OUTPUT] = {
128 .symbol = "bpf-output",
133 #define __PERF_EVENT_FIELD(config, name) \
134 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
136 #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
137 #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
138 #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
139 #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
141 #define for_each_subsystem(sys_dir, sys_dirent) \
142 while ((sys_dirent = readdir(sys_dir)) != NULL) \
143 if (sys_dirent->d_type == DT_DIR && \
144 (strcmp(sys_dirent->d_name, ".")) && \
145 (strcmp(sys_dirent->d_name, "..")))
147 static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
149 char evt_path[MAXPATHLEN];
152 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", tracing_events_path,
153 sys_dir->d_name, evt_dir->d_name);
154 fd = open(evt_path, O_RDONLY);
162 #define for_each_event(sys_dirent, evt_dir, evt_dirent) \
163 while ((evt_dirent = readdir(evt_dir)) != NULL) \
164 if (evt_dirent->d_type == DT_DIR && \
165 (strcmp(evt_dirent->d_name, ".")) && \
166 (strcmp(evt_dirent->d_name, "..")) && \
167 (!tp_event_has_id(sys_dirent, evt_dirent)))
169 #define MAX_EVENT_LENGTH 512
172 struct tracepoint_path *tracepoint_id_to_path(u64 config)
174 struct tracepoint_path *path = NULL;
175 DIR *sys_dir, *evt_dir;
176 struct dirent *sys_dirent, *evt_dirent;
180 char evt_path[MAXPATHLEN];
181 char dir_path[MAXPATHLEN];
183 sys_dir = opendir(tracing_events_path);
187 for_each_subsystem(sys_dir, sys_dirent) {
189 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
191 evt_dir = opendir(dir_path);
195 for_each_event(sys_dirent, evt_dir, evt_dirent) {
197 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
199 fd = open(evt_path, O_RDONLY);
202 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
211 path = zalloc(sizeof(*path));
212 path->system = malloc(MAX_EVENT_LENGTH);
217 path->name = malloc(MAX_EVENT_LENGTH);
219 zfree(&path->system);
223 strncpy(path->system, sys_dirent->d_name,
225 strncpy(path->name, evt_dirent->d_name,
237 struct tracepoint_path *tracepoint_name_to_path(const char *name)
239 struct tracepoint_path *path = zalloc(sizeof(*path));
240 char *str = strchr(name, ':');
242 if (path == NULL || str == NULL) {
247 path->system = strndup(name, str - name);
248 path->name = strdup(str+1);
250 if (path->system == NULL || path->name == NULL) {
251 zfree(&path->system);
260 const char *event_type(int type)
263 case PERF_TYPE_HARDWARE:
266 case PERF_TYPE_SOFTWARE:
269 case PERF_TYPE_TRACEPOINT:
272 case PERF_TYPE_HW_CACHE:
273 return "hardware-cache";
284 static struct perf_evsel *
285 __add_event(struct list_head *list, int *idx,
286 struct perf_event_attr *attr,
287 char *name, struct cpu_map *cpus,
288 struct list_head *config_terms,
289 struct list_head *drv_config_terms)
291 struct perf_evsel *evsel;
293 event_attr_init(attr);
295 evsel = perf_evsel__new_idx(attr, *idx);
300 evsel->cpus = cpu_map__get(cpus);
301 evsel->own_cpus = cpu_map__get(cpus);
304 evsel->name = strdup(name);
307 list_splice(config_terms, &evsel->config_terms);
309 if (drv_config_terms)
310 list_splice(drv_config_terms, &evsel->drv_config_terms);
312 list_add_tail(&evsel->node, list);
316 static int add_event(struct list_head *list, int *idx,
317 struct perf_event_attr *attr, char *name,
318 struct list_head *config_terms)
320 return __add_event(list, idx, attr, name,
321 NULL, config_terms, NULL) ? 0 : -ENOMEM;
324 static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
329 for (i = 0; i < size; i++) {
330 for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) {
331 n = strlen(names[i][j]);
332 if (n > longest && !strncasecmp(str, names[i][j], n))
342 int parse_events_add_cache(struct list_head *list, int *idx,
343 char *type, char *op_result1, char *op_result2)
345 struct perf_event_attr attr;
346 char name[MAX_NAME_LEN];
347 int cache_type = -1, cache_op = -1, cache_result = -1;
348 char *op_result[2] = { op_result1, op_result2 };
352 * No fallback - if we cannot get a clear cache type
355 cache_type = parse_aliases(type, perf_evsel__hw_cache,
356 PERF_COUNT_HW_CACHE_MAX);
357 if (cache_type == -1)
360 n = snprintf(name, MAX_NAME_LEN, "%s", type);
362 for (i = 0; (i < 2) && (op_result[i]); i++) {
363 char *str = op_result[i];
365 n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
367 if (cache_op == -1) {
368 cache_op = parse_aliases(str, perf_evsel__hw_cache_op,
369 PERF_COUNT_HW_CACHE_OP_MAX);
371 if (!perf_evsel__is_cache_op_valid(cache_type, cache_op))
377 if (cache_result == -1) {
378 cache_result = parse_aliases(str, perf_evsel__hw_cache_result,
379 PERF_COUNT_HW_CACHE_RESULT_MAX);
380 if (cache_result >= 0)
386 * Fall back to reads:
389 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
392 * Fall back to accesses:
394 if (cache_result == -1)
395 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
397 memset(&attr, 0, sizeof(attr));
398 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
399 attr.type = PERF_TYPE_HW_CACHE;
400 return add_event(list, idx, &attr, name, NULL);
403 static void tracepoint_error(struct parse_events_error *e, int err,
404 char *sys, char *name)
412 * We get error directly from syscall errno ( > 0),
413 * or from encoded pointer's error ( < 0).
419 e->str = strdup("can't access trace events");
422 e->str = strdup("unknown tracepoint");
425 e->str = strdup("failed to add tracepoint");
429 tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name);
430 e->help = strdup(help);
433 static int add_tracepoint(struct list_head *list, int *idx,
434 char *sys_name, char *evt_name,
435 struct parse_events_error *err,
436 struct list_head *head_config)
438 struct perf_evsel *evsel;
440 evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++);
442 tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name);
443 return PTR_ERR(evsel);
447 LIST_HEAD(config_terms);
449 if (get_config_terms(head_config, &config_terms))
451 list_splice(&config_terms, &evsel->config_terms);
454 list_add_tail(&evsel->node, list);
458 static int add_tracepoint_multi_event(struct list_head *list, int *idx,
459 char *sys_name, char *evt_name,
460 struct parse_events_error *err,
461 struct list_head *head_config)
463 char evt_path[MAXPATHLEN];
464 struct dirent *evt_ent;
466 int ret = 0, found = 0;
468 snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name);
469 evt_dir = opendir(evt_path);
471 tracepoint_error(err, errno, sys_name, evt_name);
475 while (!ret && (evt_ent = readdir(evt_dir))) {
476 if (!strcmp(evt_ent->d_name, ".")
477 || !strcmp(evt_ent->d_name, "..")
478 || !strcmp(evt_ent->d_name, "enable")
479 || !strcmp(evt_ent->d_name, "filter"))
482 if (!strglobmatch(evt_ent->d_name, evt_name))
487 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name,
492 tracepoint_error(err, ENOENT, sys_name, evt_name);
500 static int add_tracepoint_event(struct list_head *list, int *idx,
501 char *sys_name, char *evt_name,
502 struct parse_events_error *err,
503 struct list_head *head_config)
505 return strpbrk(evt_name, "*?") ?
506 add_tracepoint_multi_event(list, idx, sys_name, evt_name,
508 add_tracepoint(list, idx, sys_name, evt_name,
512 static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
513 char *sys_name, char *evt_name,
514 struct parse_events_error *err,
515 struct list_head *head_config)
517 struct dirent *events_ent;
521 events_dir = opendir(tracing_events_path);
523 tracepoint_error(err, errno, sys_name, evt_name);
527 while (!ret && (events_ent = readdir(events_dir))) {
528 if (!strcmp(events_ent->d_name, ".")
529 || !strcmp(events_ent->d_name, "..")
530 || !strcmp(events_ent->d_name, "enable")
531 || !strcmp(events_ent->d_name, "header_event")
532 || !strcmp(events_ent->d_name, "header_page"))
535 if (!strglobmatch(events_ent->d_name, sys_name))
538 ret = add_tracepoint_event(list, idx, events_ent->d_name,
539 evt_name, err, head_config);
542 closedir(events_dir);
546 struct __add_bpf_event_param {
547 struct parse_events_evlist *data;
548 struct list_head *list;
551 static int add_bpf_event(struct probe_trace_event *tev, int fd,
554 LIST_HEAD(new_evsels);
555 struct __add_bpf_event_param *param = _param;
556 struct parse_events_evlist *evlist = param->data;
557 struct list_head *list = param->list;
558 struct perf_evsel *pos;
561 pr_debug("add bpf event %s:%s and attach bpf program %d\n",
562 tev->group, tev->event, fd);
564 err = parse_events_add_tracepoint(&new_evsels, &evlist->idx, tev->group,
565 tev->event, evlist->error, NULL);
567 struct perf_evsel *evsel, *tmp;
569 pr_debug("Failed to add BPF event %s:%s\n",
570 tev->group, tev->event);
571 list_for_each_entry_safe(evsel, tmp, &new_evsels, node) {
572 list_del(&evsel->node);
573 perf_evsel__delete(evsel);
577 pr_debug("adding %s:%s\n", tev->group, tev->event);
579 list_for_each_entry(pos, &new_evsels, node) {
580 pr_debug("adding %s:%s to %p\n",
581 tev->group, tev->event, pos);
584 list_splice(&new_evsels, list);
588 int parse_events_load_bpf_obj(struct parse_events_evlist *data,
589 struct list_head *list,
590 struct bpf_object *obj)
594 struct __add_bpf_event_param param = {data, list};
595 static bool registered_unprobe_atexit = false;
597 if (IS_ERR(obj) || !obj) {
598 snprintf(errbuf, sizeof(errbuf),
599 "Internal error: load bpf obj with NULL");
605 * Register atexit handler before calling bpf__probe() so
606 * bpf__probe() don't need to unprobe probe points its already
607 * created when failure.
609 if (!registered_unprobe_atexit) {
611 registered_unprobe_atexit = true;
614 err = bpf__probe(obj);
616 bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf));
620 err = bpf__load(obj);
622 bpf__strerror_load(obj, err, errbuf, sizeof(errbuf));
626 err = bpf__foreach_tev(obj, add_bpf_event, ¶m);
628 snprintf(errbuf, sizeof(errbuf),
629 "Attach events in BPF object failed");
635 data->error->help = strdup("(add -v to see detail)");
636 data->error->str = strdup(errbuf);
640 int parse_events_load_bpf(struct parse_events_evlist *data,
641 struct list_head *list,
645 struct bpf_object *obj;
647 obj = bpf__prepare_load(bpf_file_name, source);
655 snprintf(errbuf, sizeof(errbuf),
656 "BPF support is not compiled");
658 bpf__strerror_prepare_load(bpf_file_name,
663 data->error->help = strdup("(add -v to see detail)");
664 data->error->str = strdup(errbuf);
668 return parse_events_load_bpf_obj(data, list, obj);
672 parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
676 for (i = 0; i < 3; i++) {
677 if (!type || !type[i])
680 #define CHECK_SET_TYPE(bit) \
682 if (attr->bp_type & bit) \
685 attr->bp_type |= bit; \
690 CHECK_SET_TYPE(HW_BREAKPOINT_R);
693 CHECK_SET_TYPE(HW_BREAKPOINT_W);
696 CHECK_SET_TYPE(HW_BREAKPOINT_X);
703 #undef CHECK_SET_TYPE
705 if (!attr->bp_type) /* Default */
706 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
711 int parse_events_add_breakpoint(struct list_head *list, int *idx,
712 void *ptr, char *type, u64 len)
714 struct perf_event_attr attr;
716 memset(&attr, 0, sizeof(attr));
717 attr.bp_addr = (unsigned long) ptr;
719 if (parse_breakpoint_type(type, &attr))
722 /* Provide some defaults if len is not specified */
724 if (attr.bp_type == HW_BREAKPOINT_X)
727 len = HW_BREAKPOINT_LEN_4;
732 attr.type = PERF_TYPE_BREAKPOINT;
733 attr.sample_period = 1;
735 return add_event(list, idx, &attr, NULL, NULL);
738 static int check_type_val(struct parse_events_term *term,
739 struct parse_events_error *err,
742 if (type == term->type_val)
746 err->idx = term->err_val;
747 if (type == PARSE_EVENTS__TERM_TYPE_NUM)
748 err->str = strdup("expected numeric value");
750 err->str = strdup("expected string value");
755 typedef int config_term_func_t(struct perf_event_attr *attr,
756 struct parse_events_term *term,
757 struct parse_events_error *err);
759 static int config_term_common(struct perf_event_attr *attr,
760 struct parse_events_term *term,
761 struct parse_events_error *err)
763 #define CHECK_TYPE_VAL(type) \
765 if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \
769 switch (term->type_term) {
770 case PARSE_EVENTS__TERM_TYPE_CONFIG:
772 attr->config = term->val.num;
774 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
776 attr->config1 = term->val.num;
778 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
780 attr->config2 = term->val.num;
782 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
785 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
788 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
790 * TODO uncomment when the field is available
791 * attr->branch_sample_type = term->val.num;
794 case PARSE_EVENTS__TERM_TYPE_TIME:
796 if (term->val.num > 1) {
797 err->str = strdup("expected 0 or 1");
798 err->idx = term->err_val;
802 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
805 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
808 case PARSE_EVENTS__TERM_TYPE_INHERIT:
811 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
814 case PARSE_EVENTS__TERM_TYPE_NAME:
818 err->str = strdup("unknown term");
819 err->idx = term->err_term;
820 err->help = parse_events_formats_error_string(NULL);
825 #undef CHECK_TYPE_VAL
828 static int config_term_pmu(struct perf_event_attr *attr,
829 struct parse_events_term *term,
830 struct parse_events_error *err)
832 if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER ||
833 term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG)
835 * Always succeed for sysfs terms, as we dont know
836 * at this point what type they need to have.
840 return config_term_common(attr, term, err);
843 static int config_term_tracepoint(struct perf_event_attr *attr,
844 struct parse_events_term *term,
845 struct parse_events_error *err)
847 switch (term->type_term) {
848 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
849 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
850 case PARSE_EVENTS__TERM_TYPE_INHERIT:
851 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
852 return config_term_common(attr, term, err);
855 err->idx = term->err_term;
856 err->str = strdup("unknown term");
857 err->help = strdup("valid terms: call-graph,stack-size\n");
865 static int config_attr(struct perf_event_attr *attr,
866 struct list_head *head,
867 struct parse_events_error *err,
868 config_term_func_t config_term)
870 struct parse_events_term *term;
872 list_for_each_entry(term, head, list)
873 if (config_term(attr, term, err))
879 #define ADD_CONFIG_TERM(__type, __name, __val, __head_terms) \
881 struct perf_evsel_config_term *__t; \
883 __t = zalloc(sizeof(*__t)); \
887 INIT_LIST_HEAD(&__t->list); \
888 __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \
889 __t->val.__name = __val; \
890 list_add_tail(&__t->list, __head_terms); \
893 static int get_config_terms(struct list_head *head_config,
894 struct list_head *head_terms __maybe_unused)
896 struct parse_events_term *term;
898 list_for_each_entry(term, head_config, list) {
899 switch (term->type_term) {
900 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
901 ADD_CONFIG_TERM(PERIOD, period,
902 term->val.num, head_terms);
904 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
905 ADD_CONFIG_TERM(FREQ, freq,
906 term->val.num, head_terms);
908 case PARSE_EVENTS__TERM_TYPE_TIME:
909 ADD_CONFIG_TERM(TIME, time,
910 term->val.num, head_terms);
912 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
913 ADD_CONFIG_TERM(CALLGRAPH, callgraph,
914 term->val.str, head_terms);
916 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
917 ADD_CONFIG_TERM(STACK_USER, stack_user,
918 term->val.num, head_terms);
920 case PARSE_EVENTS__TERM_TYPE_INHERIT:
921 ADD_CONFIG_TERM(INHERIT, inherit,
922 term->val.num ? 1 : 0, head_terms);
924 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
925 ADD_CONFIG_TERM(INHERIT, inherit,
926 term->val.num ? 0 : 1, head_terms);
932 #undef ADD_EVSEL_CONFIG
936 static int get_drv_config_terms(struct list_head *head_config,
937 struct list_head *head_terms)
939 struct parse_events_term *term;
941 list_for_each_entry(term, head_config, list) {
942 if (term->type_term != PARSE_EVENTS__TERM_TYPE_DRV_CFG)
945 ADD_CONFIG_TERM(DRV_CFG, drv_cfg, term->val.str, head_terms);
951 int parse_events_add_tracepoint(struct list_head *list, int *idx,
952 char *sys, char *event,
953 struct parse_events_error *err,
954 struct list_head *head_config)
957 struct perf_event_attr attr;
959 if (config_attr(&attr, head_config, err,
960 config_term_tracepoint))
964 if (strpbrk(sys, "*?"))
965 return add_tracepoint_multi_sys(list, idx, sys, event,
968 return add_tracepoint_event(list, idx, sys, event,
972 int parse_events_add_numeric(struct parse_events_evlist *data,
973 struct list_head *list,
974 u32 type, u64 config,
975 struct list_head *head_config)
977 struct perf_event_attr attr;
978 LIST_HEAD(config_terms);
980 memset(&attr, 0, sizeof(attr));
982 attr.config = config;
985 if (config_attr(&attr, head_config, data->error,
989 if (get_config_terms(head_config, &config_terms))
993 return add_event(list, &data->idx, &attr, NULL, &config_terms);
996 static int parse_events__is_name_term(struct parse_events_term *term)
998 return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
1001 static char *pmu_event_name(struct list_head *head_terms)
1003 struct parse_events_term *term;
1005 list_for_each_entry(term, head_terms, list)
1006 if (parse_events__is_name_term(term))
1007 return term->val.str;
1012 int parse_events_add_pmu(struct parse_events_evlist *data,
1013 struct list_head *list, char *name,
1014 struct list_head *head_config)
1016 struct perf_event_attr attr;
1017 struct perf_pmu_info info;
1018 struct perf_pmu *pmu;
1019 struct perf_evsel *evsel;
1020 LIST_HEAD(config_terms);
1021 LIST_HEAD(drv_config_terms);
1023 pmu = perf_pmu__find(name);
1027 if (pmu->default_config) {
1028 memcpy(&attr, pmu->default_config,
1029 sizeof(struct perf_event_attr));
1031 memset(&attr, 0, sizeof(attr));
1035 attr.type = pmu->type;
1036 evsel = __add_event(list, &data->idx, &attr,
1037 NULL, pmu->cpus, NULL, NULL);
1038 return evsel ? 0 : -ENOMEM;
1041 if (perf_pmu__check_alias(pmu, head_config, &info))
1045 * Configure hardcoded terms first, no need to check
1046 * return value when called with fail == 0 ;)
1048 if (config_attr(&attr, head_config, data->error, config_term_pmu))
1051 if (get_config_terms(head_config, &config_terms))
1054 if (get_drv_config_terms(head_config, &drv_config_terms))
1057 if (perf_pmu__config(pmu, &attr, head_config, data->error))
1060 evsel = __add_event(list, &data->idx, &attr,
1061 pmu_event_name(head_config), pmu->cpus,
1062 &config_terms, &drv_config_terms);
1064 evsel->unit = info.unit;
1065 evsel->scale = info.scale;
1066 evsel->per_pkg = info.per_pkg;
1067 evsel->snapshot = info.snapshot;
1070 return evsel ? 0 : -ENOMEM;
1073 int parse_events__modifier_group(struct list_head *list,
1076 return parse_events__modifier_event(list, event_mod, true);
1079 void parse_events__set_leader(char *name, struct list_head *list)
1081 struct perf_evsel *leader;
1083 if (list_empty(list)) {
1084 WARN_ONCE(true, "WARNING: failed to set leader: empty list");
1088 __perf_evlist__set_leader(list);
1089 leader = list_entry(list->next, struct perf_evsel, node);
1090 leader->group_name = name ? strdup(name) : NULL;
1093 /* list_event is assumed to point to malloc'ed memory */
1094 void parse_events_update_lists(struct list_head *list_event,
1095 struct list_head *list_all)
1098 * Called for single event definition. Update the
1099 * 'all event' list, and reinit the 'single event'
1100 * list, for next event definition.
1102 list_splice_tail(list_event, list_all);
1106 struct event_modifier {
1120 static int get_event_modifier(struct event_modifier *mod, char *str,
1121 struct perf_evsel *evsel)
1123 int eu = evsel ? evsel->attr.exclude_user : 0;
1124 int ek = evsel ? evsel->attr.exclude_kernel : 0;
1125 int eh = evsel ? evsel->attr.exclude_hv : 0;
1126 int eH = evsel ? evsel->attr.exclude_host : 0;
1127 int eG = evsel ? evsel->attr.exclude_guest : 0;
1128 int eI = evsel ? evsel->attr.exclude_idle : 0;
1129 int precise = evsel ? evsel->attr.precise_ip : 0;
1130 int precise_max = 0;
1131 int sample_read = 0;
1132 int pinned = evsel ? evsel->attr.pinned : 0;
1134 int exclude = eu | ek | eh;
1135 int exclude_GH = evsel ? evsel->exclude_GH : 0;
1137 memset(mod, 0, sizeof(*mod));
1142 exclude = eu = ek = eh = 1;
1144 } else if (*str == 'k') {
1146 exclude = eu = ek = eh = 1;
1148 } else if (*str == 'h') {
1150 exclude = eu = ek = eh = 1;
1152 } else if (*str == 'G') {
1154 exclude_GH = eG = eH = 1;
1156 } else if (*str == 'H') {
1158 exclude_GH = eG = eH = 1;
1160 } else if (*str == 'I') {
1162 } else if (*str == 'p') {
1164 /* use of precise requires exclude_guest */
1167 } else if (*str == 'P') {
1169 } else if (*str == 'S') {
1171 } else if (*str == 'D') {
1182 * 0 - SAMPLE_IP can have arbitrary skid
1183 * 1 - SAMPLE_IP must have constant skid
1184 * 2 - SAMPLE_IP requested to have 0 skid
1185 * 3 - SAMPLE_IP must have 0 skid
1187 * See also PERF_RECORD_MISC_EXACT_IP
1198 mod->precise = precise;
1199 mod->precise_max = precise_max;
1200 mod->exclude_GH = exclude_GH;
1201 mod->sample_read = sample_read;
1202 mod->pinned = pinned;
1208 * Basic modifier sanity check to validate it contains only one
1209 * instance of any modifier (apart from 'p') present.
1211 static int check_modifier(char *str)
1215 /* The sizeof includes 0 byte as well. */
1216 if (strlen(str) > (sizeof("ukhGHpppPSDI") - 1))
1220 if (*p != 'p' && strchr(p + 1, *p))
1228 int parse_events__modifier_event(struct list_head *list, char *str, bool add)
1230 struct perf_evsel *evsel;
1231 struct event_modifier mod;
1236 if (check_modifier(str))
1239 if (!add && get_event_modifier(&mod, str, NULL))
1242 __evlist__for_each(list, evsel) {
1243 if (add && get_event_modifier(&mod, str, evsel))
1246 evsel->attr.exclude_user = mod.eu;
1247 evsel->attr.exclude_kernel = mod.ek;
1248 evsel->attr.exclude_hv = mod.eh;
1249 evsel->attr.precise_ip = mod.precise;
1250 evsel->attr.exclude_host = mod.eH;
1251 evsel->attr.exclude_guest = mod.eG;
1252 evsel->attr.exclude_idle = mod.eI;
1253 evsel->exclude_GH = mod.exclude_GH;
1254 evsel->sample_read = mod.sample_read;
1255 evsel->precise_max = mod.precise_max;
1257 if (perf_evsel__is_group_leader(evsel))
1258 evsel->attr.pinned = mod.pinned;
1264 int parse_events_name(struct list_head *list, char *name)
1266 struct perf_evsel *evsel;
1268 __evlist__for_each(list, evsel) {
1270 evsel->name = strdup(name);
1277 comp_pmu(const void *p1, const void *p2)
1279 struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1;
1280 struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2;
1282 return strcmp(pmu1->symbol, pmu2->symbol);
1285 static void perf_pmu__parse_cleanup(void)
1287 if (perf_pmu_events_list_num > 0) {
1288 struct perf_pmu_event_symbol *p;
1291 for (i = 0; i < perf_pmu_events_list_num; i++) {
1292 p = perf_pmu_events_list + i;
1295 free(perf_pmu_events_list);
1296 perf_pmu_events_list = NULL;
1297 perf_pmu_events_list_num = 0;
1301 #define SET_SYMBOL(str, stype) \
1310 * Read the pmu events list from sysfs
1311 * Save it into perf_pmu_events_list
1313 static void perf_pmu__parse_init(void)
1316 struct perf_pmu *pmu = NULL;
1317 struct perf_pmu_alias *alias;
1320 pmu = perf_pmu__find("cpu");
1321 if ((pmu == NULL) || list_empty(&pmu->aliases)) {
1322 perf_pmu_events_list_num = -1;
1325 list_for_each_entry(alias, &pmu->aliases, list) {
1326 if (strchr(alias->name, '-'))
1330 perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len);
1331 if (!perf_pmu_events_list)
1333 perf_pmu_events_list_num = len;
1336 list_for_each_entry(alias, &pmu->aliases, list) {
1337 struct perf_pmu_event_symbol *p = perf_pmu_events_list + len;
1338 char *tmp = strchr(alias->name, '-');
1341 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
1342 PMU_EVENT_SYMBOL_PREFIX);
1344 SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX);
1347 SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL);
1351 qsort(perf_pmu_events_list, len,
1352 sizeof(struct perf_pmu_event_symbol), comp_pmu);
1356 perf_pmu__parse_cleanup();
1359 enum perf_pmu_event_symbol_type
1360 perf_pmu__parse_check(const char *name)
1362 struct perf_pmu_event_symbol p, *r;
1364 /* scan kernel pmu events from sysfs if needed */
1365 if (perf_pmu_events_list_num == 0)
1366 perf_pmu__parse_init();
1368 * name "cpu" could be prefix of cpu-cycles or cpu// events.
1369 * cpu-cycles has been handled by hardcode.
1370 * So it must be cpu// events, not kernel pmu event.
1372 if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu"))
1373 return PMU_EVENT_SYMBOL_ERR;
1375 p.symbol = strdup(name);
1376 r = bsearch(&p, perf_pmu_events_list,
1377 (size_t) perf_pmu_events_list_num,
1378 sizeof(struct perf_pmu_event_symbol), comp_pmu);
1380 return r ? r->type : PMU_EVENT_SYMBOL_ERR;
1383 static int parse_events__scanner(const char *str, void *data, int start_token)
1385 YY_BUFFER_STATE buffer;
1389 ret = parse_events_lex_init_extra(start_token, &scanner);
1393 buffer = parse_events__scan_string(str, scanner);
1396 parse_events_debug = 1;
1398 ret = parse_events_parse(data, scanner);
1400 parse_events__flush_buffer(buffer, scanner);
1401 parse_events__delete_buffer(buffer, scanner);
1402 parse_events_lex_destroy(scanner);
1407 * parse event config string, return a list of event terms.
1409 int parse_events_terms(struct list_head *terms, const char *str)
1411 struct parse_events_terms data = {
1416 ret = parse_events__scanner(str, &data, PE_START_TERMS);
1418 list_splice(data.terms, terms);
1424 parse_events__free_terms(data.terms);
1428 int parse_events(struct perf_evlist *evlist, const char *str,
1429 struct parse_events_error *err)
1431 struct parse_events_evlist data = {
1432 .list = LIST_HEAD_INIT(data.list),
1433 .idx = evlist->nr_entries,
1438 ret = parse_events__scanner(str, &data, PE_START_EVENTS);
1439 perf_pmu__parse_cleanup();
1441 struct perf_evsel *last;
1443 if (list_empty(&data.list)) {
1444 WARN_ONCE(true, "WARNING: event parser found nothing");
1448 perf_evlist__splice_list_tail(evlist, &data.list);
1449 evlist->nr_groups += data.nr_groups;
1450 last = perf_evlist__last(evlist);
1451 last->cmdline_group_boundary = true;
1457 * There are 2 users - builtin-record and builtin-test objects.
1458 * Both call perf_evlist__delete in case of error, so we dont
1464 #define MAX_WIDTH 1000
1465 static int get_term_width(void)
1469 get_term_dimensions(&ws);
1470 return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
1473 static void parse_events_print_error(struct parse_events_error *err,
1476 const char *str = "invalid or unsupported event: ";
1477 char _buf[MAX_WIDTH];
1478 char *buf = (char *) event;
1482 /* -2 for extra '' in the final fprintf */
1483 int width = get_term_width() - 2;
1484 int len_event = strlen(event);
1485 int len_str, max_len, cut = 0;
1488 * Maximum error index indent, we will cut
1489 * the event string if it's bigger.
1491 int max_err_idx = 13;
1494 * Let's be specific with the message when
1495 * we have the precise error.
1497 str = "event syntax error: ";
1498 len_str = strlen(str);
1499 max_len = width - len_str;
1503 /* We're cutting from the beggining. */
1504 if (err->idx > max_err_idx)
1505 cut = err->idx - max_err_idx;
1507 strncpy(buf, event + cut, max_len);
1509 /* Mark cut parts with '..' on both sides. */
1511 buf[0] = buf[1] = '.';
1513 if ((len_event - cut) > max_len) {
1514 buf[max_len - 1] = buf[max_len - 2] = '.';
1518 idx = len_str + err->idx - cut;
1521 fprintf(stderr, "%s'%s'\n", str, buf);
1523 fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err->str);
1525 fprintf(stderr, "\n%s\n", err->help);
1530 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
1535 int parse_events_option(const struct option *opt, const char *str,
1536 int unset __maybe_unused)
1538 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1539 struct parse_events_error err = { .idx = 0, };
1540 int ret = parse_events(evlist, str, &err);
1543 parse_events_print_error(&err, str);
1549 foreach_evsel_in_last_glob(struct perf_evlist *evlist,
1550 int (*func)(struct perf_evsel *evsel,
1554 struct perf_evsel *last = NULL;
1558 * Don't return when list_empty, give func a chance to report
1559 * error when it found last == NULL.
1561 * So no need to WARN here, let *func do this.
1563 if (evlist->nr_entries > 0)
1564 last = perf_evlist__last(evlist);
1567 err = (*func)(last, arg);
1573 if (last->node.prev == &evlist->entries)
1575 last = list_entry(last->node.prev, struct perf_evsel, node);
1576 } while (!last->cmdline_group_boundary);
1581 static int set_filter(struct perf_evsel *evsel, const void *arg)
1583 const char *str = arg;
1585 if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
1587 "--filter option should follow a -e tracepoint option\n");
1591 if (perf_evsel__append_filter(evsel, "&&", str) < 0) {
1593 "not enough memory to hold filter string\n");
1600 int parse_filter(const struct option *opt, const char *str,
1601 int unset __maybe_unused)
1603 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1605 return foreach_evsel_in_last_glob(evlist, set_filter,
1609 static int add_exclude_perf_filter(struct perf_evsel *evsel,
1610 const void *arg __maybe_unused)
1612 char new_filter[64];
1614 if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
1616 "--exclude-perf option should follow a -e tracepoint option\n");
1620 snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
1622 if (perf_evsel__append_filter(evsel, "&&", new_filter) < 0) {
1624 "not enough memory to hold filter string\n");
1631 int exclude_perf(const struct option *opt,
1632 const char *arg __maybe_unused,
1633 int unset __maybe_unused)
1635 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1637 return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
1641 static const char * const event_type_descriptors[] = {
1645 "Hardware cache event",
1646 "Raw hardware event descriptor",
1647 "Hardware breakpoint",
1650 static int cmp_string(const void *a, const void *b)
1652 const char * const *as = a;
1653 const char * const *bs = b;
1655 return strcmp(*as, *bs);
1659 * Print the events from <debugfs_mount_point>/tracing/events
1662 void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
1665 DIR *sys_dir, *evt_dir;
1666 struct dirent *sys_dirent, *evt_dirent;
1667 char evt_path[MAXPATHLEN];
1668 char dir_path[MAXPATHLEN];
1669 char **evt_list = NULL;
1670 unsigned int evt_i = 0, evt_num = 0;
1671 bool evt_num_known = false;
1674 sys_dir = opendir(tracing_events_path);
1678 if (evt_num_known) {
1679 evt_list = zalloc(sizeof(char *) * evt_num);
1681 goto out_close_sys_dir;
1684 for_each_subsystem(sys_dir, sys_dirent) {
1685 if (subsys_glob != NULL &&
1686 !strglobmatch(sys_dirent->d_name, subsys_glob))
1689 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1690 sys_dirent->d_name);
1691 evt_dir = opendir(dir_path);
1695 for_each_event(sys_dirent, evt_dir, evt_dirent) {
1696 if (event_glob != NULL &&
1697 !strglobmatch(evt_dirent->d_name, event_glob))
1700 if (!evt_num_known) {
1705 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1706 sys_dirent->d_name, evt_dirent->d_name);
1708 evt_list[evt_i] = strdup(evt_path);
1709 if (evt_list[evt_i] == NULL)
1710 goto out_close_evt_dir;
1717 if (!evt_num_known) {
1718 evt_num_known = true;
1721 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1723 while (evt_i < evt_num) {
1725 printf("%s ", evt_list[evt_i++]);
1728 printf(" %-50s [%s]\n", evt_list[evt_i++],
1729 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
1731 if (evt_num && pager_in_use())
1736 for (evt_i = 0; evt_i < evt_num; evt_i++)
1737 zfree(&evt_list[evt_i]);
1746 printf("FATAL: not enough memory to print %s\n",
1747 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
1753 * Check whether event is in <debugfs_mount_point>/tracing/events
1756 int is_valid_tracepoint(const char *event_string)
1758 DIR *sys_dir, *evt_dir;
1759 struct dirent *sys_dirent, *evt_dirent;
1760 char evt_path[MAXPATHLEN];
1761 char dir_path[MAXPATHLEN];
1763 sys_dir = opendir(tracing_events_path);
1767 for_each_subsystem(sys_dir, sys_dirent) {
1769 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1770 sys_dirent->d_name);
1771 evt_dir = opendir(dir_path);
1775 for_each_event(sys_dirent, evt_dir, evt_dirent) {
1776 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1777 sys_dirent->d_name, evt_dirent->d_name);
1778 if (!strcmp(evt_path, event_string)) {
1790 static bool is_event_supported(u8 type, unsigned config)
1794 struct perf_evsel *evsel;
1795 struct perf_event_attr attr = {
1801 struct thread_map map;
1808 evsel = perf_evsel__new(&attr);
1810 open_return = perf_evsel__open(evsel, NULL, &tmap.map);
1811 ret = open_return >= 0;
1813 if (open_return == -EACCES) {
1815 * This happens if the paranoid value
1816 * /proc/sys/kernel/perf_event_paranoid is set to 2
1817 * Re-run with exclude_kernel set; we don't do that
1818 * by default as some ARM machines do not support it.
1821 evsel->attr.exclude_kernel = 1;
1822 ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0;
1824 perf_evsel__delete(evsel);
1830 int print_hwcache_events(const char *event_glob, bool name_only)
1832 unsigned int type, op, i, evt_i = 0, evt_num = 0;
1834 char **evt_list = NULL;
1835 bool evt_num_known = false;
1838 if (evt_num_known) {
1839 evt_list = zalloc(sizeof(char *) * evt_num);
1844 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
1845 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
1846 /* skip invalid cache type */
1847 if (!perf_evsel__is_cache_op_valid(type, op))
1850 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
1851 __perf_evsel__hw_cache_type_op_res_name(type, op, i,
1852 name, sizeof(name));
1853 if (event_glob != NULL && !strglobmatch(name, event_glob))
1856 if (!is_event_supported(PERF_TYPE_HW_CACHE,
1857 type | (op << 8) | (i << 16)))
1860 if (!evt_num_known) {
1865 evt_list[evt_i] = strdup(name);
1866 if (evt_list[evt_i] == NULL)
1873 if (!evt_num_known) {
1874 evt_num_known = true;
1877 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1879 while (evt_i < evt_num) {
1881 printf("%s ", evt_list[evt_i++]);
1884 printf(" %-50s [%s]\n", evt_list[evt_i++],
1885 event_type_descriptors[PERF_TYPE_HW_CACHE]);
1887 if (evt_num && pager_in_use())
1892 for (evt_i = 0; evt_i < evt_num; evt_i++)
1893 zfree(&evt_list[evt_i]);
1898 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]);
1904 void print_symbol_events(const char *event_glob, unsigned type,
1905 struct event_symbol *syms, unsigned max,
1908 unsigned int i, evt_i = 0, evt_num = 0;
1909 char name[MAX_NAME_LEN];
1910 char **evt_list = NULL;
1911 bool evt_num_known = false;
1914 if (evt_num_known) {
1915 evt_list = zalloc(sizeof(char *) * evt_num);
1921 for (i = 0; i < max; i++, syms++) {
1923 if (event_glob != NULL && syms->symbol != NULL &&
1924 !(strglobmatch(syms->symbol, event_glob) ||
1925 (syms->alias && strglobmatch(syms->alias, event_glob))))
1928 if (!is_event_supported(type, i))
1931 if (!evt_num_known) {
1936 if (!name_only && strlen(syms->alias))
1937 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
1939 strlcpy(name, syms->symbol, MAX_NAME_LEN);
1941 evt_list[evt_i] = strdup(name);
1942 if (evt_list[evt_i] == NULL)
1947 if (!evt_num_known) {
1948 evt_num_known = true;
1951 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1953 while (evt_i < evt_num) {
1955 printf("%s ", evt_list[evt_i++]);
1958 printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]);
1960 if (evt_num && pager_in_use())
1965 for (evt_i = 0; evt_i < evt_num; evt_i++)
1966 zfree(&evt_list[evt_i]);
1971 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]);
1977 * Print the help text for the event symbols:
1979 void print_events(const char *event_glob, bool name_only)
1981 print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
1982 event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
1984 print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
1985 event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
1987 print_hwcache_events(event_glob, name_only);
1989 print_pmu_events(event_glob, name_only);
1991 if (event_glob != NULL)
1995 printf(" %-50s [%s]\n",
1997 event_type_descriptors[PERF_TYPE_RAW]);
1998 printf(" %-50s [%s]\n",
1999 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
2000 event_type_descriptors[PERF_TYPE_RAW]);
2002 printf(" (see 'man perf-list' on how to encode it)\n\n");
2004 printf(" %-50s [%s]\n",
2005 "mem:<addr>[/len][:access]",
2006 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
2011 print_tracepoint_events(NULL, NULL, name_only);
2014 int parse_events__is_hardcoded_term(struct parse_events_term *term)
2016 return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
2019 static int new_term(struct parse_events_term **_term, int type_val,
2020 int type_term, char *config,
2021 char *str, u64 num, int err_term, int err_val)
2023 struct parse_events_term *term;
2025 term = zalloc(sizeof(*term));
2029 INIT_LIST_HEAD(&term->list);
2030 term->type_val = type_val;
2031 term->type_term = type_term;
2032 term->config = config;
2033 term->err_term = err_term;
2034 term->err_val = err_val;
2037 case PARSE_EVENTS__TERM_TYPE_NUM:
2038 term->val.num = num;
2040 case PARSE_EVENTS__TERM_TYPE_STR:
2041 term->val.str = str;
2052 int parse_events_term__num(struct parse_events_term **term,
2053 int type_term, char *config, u64 num,
2054 void *loc_term_, void *loc_val_)
2056 YYLTYPE *loc_term = loc_term_;
2057 YYLTYPE *loc_val = loc_val_;
2059 return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term,
2061 loc_term ? loc_term->first_column : 0,
2062 loc_val ? loc_val->first_column : 0);
2065 int parse_events_term__str(struct parse_events_term **term,
2066 int type_term, char *config, char *str,
2067 void *loc_term_, void *loc_val_)
2069 YYLTYPE *loc_term = loc_term_;
2070 YYLTYPE *loc_val = loc_val_;
2072 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, type_term,
2074 loc_term ? loc_term->first_column : 0,
2075 loc_val ? loc_val->first_column : 0);
2078 int parse_events_term__sym_hw(struct parse_events_term **term,
2079 char *config, unsigned idx)
2081 struct event_symbol *sym;
2083 BUG_ON(idx >= PERF_COUNT_HW_MAX);
2084 sym = &event_symbols_hw[idx];
2087 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
2088 PARSE_EVENTS__TERM_TYPE_USER, config,
2089 (char *) sym->symbol, 0, 0, 0);
2091 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
2092 PARSE_EVENTS__TERM_TYPE_USER,
2093 (char *) "event", (char *) sym->symbol,
2097 int parse_events_term__clone(struct parse_events_term **new,
2098 struct parse_events_term *term)
2100 return new_term(new, term->type_val, term->type_term, term->config,
2101 term->val.str, term->val.num,
2102 term->err_term, term->err_val);
2105 void parse_events__free_terms(struct list_head *terms)
2107 struct parse_events_term *term, *h;
2109 list_for_each_entry_safe(term, h, terms, list)
2113 void parse_events_evlist_error(struct parse_events_evlist *data,
2114 int idx, const char *str)
2116 struct parse_events_error *err = data->error;
2121 err->str = strdup(str);
2122 WARN_ONCE(!err->str, "WARNING: failed to allocate error string");
2126 * Return string contains valid config terms of an event.
2127 * @additional_terms: For terms such as PMU sysfs terms.
2129 char *parse_events_formats_error_string(char *additional_terms)
2132 static const char *static_terms = "config,config1,config2,name,"
2133 "period,freq,branch_type,time,"
2134 "call-graph,stack-size\n";
2137 if (additional_terms) {
2138 if (asprintf(&str, "valid terms: %s,%s",
2139 additional_terms, static_terms) < 0)
2142 if (asprintf(&str, "valid terms: %s", static_terms) < 0)