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, sys_next) \
142 while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \
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, evt_next) \
163 while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \
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_next, *evt_next, 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, sys_next) {
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, evt_next) {
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)
290 struct perf_evsel *evsel;
292 event_attr_init(attr);
294 evsel = perf_evsel__new_idx(attr, (*idx)++);
298 evsel->cpus = cpu_map__get(cpus);
299 evsel->own_cpus = cpu_map__get(cpus);
302 evsel->name = strdup(name);
305 list_splice(config_terms, &evsel->config_terms);
307 list_add_tail(&evsel->node, list);
311 static int add_event(struct list_head *list, int *idx,
312 struct perf_event_attr *attr, char *name,
313 struct list_head *config_terms)
315 return __add_event(list, idx, attr, name, NULL, config_terms) ? 0 : -ENOMEM;
318 static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
323 for (i = 0; i < size; i++) {
324 for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) {
325 n = strlen(names[i][j]);
326 if (n > longest && !strncasecmp(str, names[i][j], n))
336 int parse_events_add_cache(struct list_head *list, int *idx,
337 char *type, char *op_result1, char *op_result2)
339 struct perf_event_attr attr;
340 char name[MAX_NAME_LEN];
341 int cache_type = -1, cache_op = -1, cache_result = -1;
342 char *op_result[2] = { op_result1, op_result2 };
346 * No fallback - if we cannot get a clear cache type
349 cache_type = parse_aliases(type, perf_evsel__hw_cache,
350 PERF_COUNT_HW_CACHE_MAX);
351 if (cache_type == -1)
354 n = snprintf(name, MAX_NAME_LEN, "%s", type);
356 for (i = 0; (i < 2) && (op_result[i]); i++) {
357 char *str = op_result[i];
359 n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
361 if (cache_op == -1) {
362 cache_op = parse_aliases(str, perf_evsel__hw_cache_op,
363 PERF_COUNT_HW_CACHE_OP_MAX);
365 if (!perf_evsel__is_cache_op_valid(cache_type, cache_op))
371 if (cache_result == -1) {
372 cache_result = parse_aliases(str, perf_evsel__hw_cache_result,
373 PERF_COUNT_HW_CACHE_RESULT_MAX);
374 if (cache_result >= 0)
380 * Fall back to reads:
383 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
386 * Fall back to accesses:
388 if (cache_result == -1)
389 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
391 memset(&attr, 0, sizeof(attr));
392 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
393 attr.type = PERF_TYPE_HW_CACHE;
394 return add_event(list, idx, &attr, name, NULL);
397 static void tracepoint_error(struct parse_events_error *e, int err,
398 char *sys, char *name)
406 * We get error directly from syscall errno ( > 0),
407 * or from encoded pointer's error ( < 0).
413 e->str = strdup("can't access trace events");
416 e->str = strdup("unknown tracepoint");
419 e->str = strdup("failed to add tracepoint");
423 tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name);
424 e->help = strdup(help);
427 static int add_tracepoint(struct list_head *list, int *idx,
428 char *sys_name, char *evt_name,
429 struct parse_events_error *err,
430 struct list_head *head_config)
432 struct perf_evsel *evsel;
434 evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++);
436 tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name);
437 return PTR_ERR(evsel);
441 LIST_HEAD(config_terms);
443 if (get_config_terms(head_config, &config_terms))
445 list_splice(&config_terms, &evsel->config_terms);
448 list_add_tail(&evsel->node, list);
452 static int add_tracepoint_multi_event(struct list_head *list, int *idx,
453 char *sys_name, char *evt_name,
454 struct parse_events_error *err,
455 struct list_head *head_config)
457 char evt_path[MAXPATHLEN];
458 struct dirent *evt_ent;
460 int ret = 0, found = 0;
462 snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name);
463 evt_dir = opendir(evt_path);
465 tracepoint_error(err, errno, sys_name, evt_name);
469 while (!ret && (evt_ent = readdir(evt_dir))) {
470 if (!strcmp(evt_ent->d_name, ".")
471 || !strcmp(evt_ent->d_name, "..")
472 || !strcmp(evt_ent->d_name, "enable")
473 || !strcmp(evt_ent->d_name, "filter"))
476 if (!strglobmatch(evt_ent->d_name, evt_name))
481 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name,
486 tracepoint_error(err, ENOENT, sys_name, evt_name);
494 static int add_tracepoint_event(struct list_head *list, int *idx,
495 char *sys_name, char *evt_name,
496 struct parse_events_error *err,
497 struct list_head *head_config)
499 return strpbrk(evt_name, "*?") ?
500 add_tracepoint_multi_event(list, idx, sys_name, evt_name,
502 add_tracepoint(list, idx, sys_name, evt_name,
506 static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
507 char *sys_name, char *evt_name,
508 struct parse_events_error *err,
509 struct list_head *head_config)
511 struct dirent *events_ent;
515 events_dir = opendir(tracing_events_path);
517 tracepoint_error(err, errno, sys_name, evt_name);
521 while (!ret && (events_ent = readdir(events_dir))) {
522 if (!strcmp(events_ent->d_name, ".")
523 || !strcmp(events_ent->d_name, "..")
524 || !strcmp(events_ent->d_name, "enable")
525 || !strcmp(events_ent->d_name, "header_event")
526 || !strcmp(events_ent->d_name, "header_page"))
529 if (!strglobmatch(events_ent->d_name, sys_name))
532 ret = add_tracepoint_event(list, idx, events_ent->d_name,
533 evt_name, err, head_config);
536 closedir(events_dir);
540 struct __add_bpf_event_param {
541 struct parse_events_evlist *data;
542 struct list_head *list;
545 static int add_bpf_event(struct probe_trace_event *tev, int fd,
548 LIST_HEAD(new_evsels);
549 struct __add_bpf_event_param *param = _param;
550 struct parse_events_evlist *evlist = param->data;
551 struct list_head *list = param->list;
552 struct perf_evsel *pos;
555 pr_debug("add bpf event %s:%s and attach bpf program %d\n",
556 tev->group, tev->event, fd);
558 err = parse_events_add_tracepoint(&new_evsels, &evlist->idx, tev->group,
559 tev->event, evlist->error, NULL);
561 struct perf_evsel *evsel, *tmp;
563 pr_debug("Failed to add BPF event %s:%s\n",
564 tev->group, tev->event);
565 list_for_each_entry_safe(evsel, tmp, &new_evsels, node) {
566 list_del(&evsel->node);
567 perf_evsel__delete(evsel);
571 pr_debug("adding %s:%s\n", tev->group, tev->event);
573 list_for_each_entry(pos, &new_evsels, node) {
574 pr_debug("adding %s:%s to %p\n",
575 tev->group, tev->event, pos);
578 list_splice(&new_evsels, list);
582 int parse_events_load_bpf_obj(struct parse_events_evlist *data,
583 struct list_head *list,
584 struct bpf_object *obj)
588 struct __add_bpf_event_param param = {data, list};
589 static bool registered_unprobe_atexit = false;
591 if (IS_ERR(obj) || !obj) {
592 snprintf(errbuf, sizeof(errbuf),
593 "Internal error: load bpf obj with NULL");
599 * Register atexit handler before calling bpf__probe() so
600 * bpf__probe() don't need to unprobe probe points its already
601 * created when failure.
603 if (!registered_unprobe_atexit) {
605 registered_unprobe_atexit = true;
608 err = bpf__probe(obj);
610 bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf));
614 err = bpf__load(obj);
616 bpf__strerror_load(obj, err, errbuf, sizeof(errbuf));
620 err = bpf__foreach_tev(obj, add_bpf_event, ¶m);
622 snprintf(errbuf, sizeof(errbuf),
623 "Attach events in BPF object failed");
629 data->error->help = strdup("(add -v to see detail)");
630 data->error->str = strdup(errbuf);
634 int parse_events_load_bpf(struct parse_events_evlist *data,
635 struct list_head *list,
639 struct bpf_object *obj;
641 obj = bpf__prepare_load(bpf_file_name, source);
649 snprintf(errbuf, sizeof(errbuf),
650 "BPF support is not compiled");
652 bpf__strerror_prepare_load(bpf_file_name,
657 data->error->help = strdup("(add -v to see detail)");
658 data->error->str = strdup(errbuf);
662 return parse_events_load_bpf_obj(data, list, obj);
666 parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
670 for (i = 0; i < 3; i++) {
671 if (!type || !type[i])
674 #define CHECK_SET_TYPE(bit) \
676 if (attr->bp_type & bit) \
679 attr->bp_type |= bit; \
684 CHECK_SET_TYPE(HW_BREAKPOINT_R);
687 CHECK_SET_TYPE(HW_BREAKPOINT_W);
690 CHECK_SET_TYPE(HW_BREAKPOINT_X);
697 #undef CHECK_SET_TYPE
699 if (!attr->bp_type) /* Default */
700 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
705 int parse_events_add_breakpoint(struct list_head *list, int *idx,
706 void *ptr, char *type, u64 len)
708 struct perf_event_attr attr;
710 memset(&attr, 0, sizeof(attr));
711 attr.bp_addr = (unsigned long) ptr;
713 if (parse_breakpoint_type(type, &attr))
716 /* Provide some defaults if len is not specified */
718 if (attr.bp_type == HW_BREAKPOINT_X)
721 len = HW_BREAKPOINT_LEN_4;
726 attr.type = PERF_TYPE_BREAKPOINT;
727 attr.sample_period = 1;
729 return add_event(list, idx, &attr, NULL, NULL);
732 static int check_type_val(struct parse_events_term *term,
733 struct parse_events_error *err,
736 if (type == term->type_val)
740 err->idx = term->err_val;
741 if (type == PARSE_EVENTS__TERM_TYPE_NUM)
742 err->str = strdup("expected numeric value");
744 err->str = strdup("expected string value");
749 typedef int config_term_func_t(struct perf_event_attr *attr,
750 struct parse_events_term *term,
751 struct parse_events_error *err);
753 static int config_term_common(struct perf_event_attr *attr,
754 struct parse_events_term *term,
755 struct parse_events_error *err)
757 #define CHECK_TYPE_VAL(type) \
759 if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \
763 switch (term->type_term) {
764 case PARSE_EVENTS__TERM_TYPE_CONFIG:
766 attr->config = term->val.num;
768 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
770 attr->config1 = term->val.num;
772 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
774 attr->config2 = term->val.num;
776 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
779 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
782 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
784 * TODO uncomment when the field is available
785 * attr->branch_sample_type = term->val.num;
788 case PARSE_EVENTS__TERM_TYPE_TIME:
790 if (term->val.num > 1) {
791 err->str = strdup("expected 0 or 1");
792 err->idx = term->err_val;
796 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
799 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
802 case PARSE_EVENTS__TERM_TYPE_INHERIT:
805 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
808 case PARSE_EVENTS__TERM_TYPE_NAME:
812 err->str = strdup("unknown term");
813 err->idx = term->err_term;
814 err->help = parse_events_formats_error_string(NULL);
819 #undef CHECK_TYPE_VAL
822 static int config_term_pmu(struct perf_event_attr *attr,
823 struct parse_events_term *term,
824 struct parse_events_error *err)
826 if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER)
828 * Always succeed for sysfs terms, as we dont know
829 * at this point what type they need to have.
833 return config_term_common(attr, term, err);
836 static int config_term_tracepoint(struct perf_event_attr *attr,
837 struct parse_events_term *term,
838 struct parse_events_error *err)
840 switch (term->type_term) {
841 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
842 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
843 case PARSE_EVENTS__TERM_TYPE_INHERIT:
844 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
845 return config_term_common(attr, term, err);
848 err->idx = term->err_term;
849 err->str = strdup("unknown term");
850 err->help = strdup("valid terms: call-graph,stack-size\n");
858 static int config_attr(struct perf_event_attr *attr,
859 struct list_head *head,
860 struct parse_events_error *err,
861 config_term_func_t config_term)
863 struct parse_events_term *term;
865 list_for_each_entry(term, head, list)
866 if (config_term(attr, term, err))
872 static int get_config_terms(struct list_head *head_config,
873 struct list_head *head_terms __maybe_unused)
875 #define ADD_CONFIG_TERM(__type, __name, __val) \
877 struct perf_evsel_config_term *__t; \
879 __t = zalloc(sizeof(*__t)); \
883 INIT_LIST_HEAD(&__t->list); \
884 __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \
885 __t->val.__name = __val; \
886 list_add_tail(&__t->list, head_terms); \
889 struct parse_events_term *term;
891 list_for_each_entry(term, head_config, list) {
892 switch (term->type_term) {
893 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
894 ADD_CONFIG_TERM(PERIOD, period, term->val.num);
896 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
897 ADD_CONFIG_TERM(FREQ, freq, term->val.num);
899 case PARSE_EVENTS__TERM_TYPE_TIME:
900 ADD_CONFIG_TERM(TIME, time, term->val.num);
902 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
903 ADD_CONFIG_TERM(CALLGRAPH, callgraph, term->val.str);
905 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
906 ADD_CONFIG_TERM(STACK_USER, stack_user, term->val.num);
908 case PARSE_EVENTS__TERM_TYPE_INHERIT:
909 ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 1 : 0);
911 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
912 ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 0 : 1);
918 #undef ADD_EVSEL_CONFIG
922 int parse_events_add_tracepoint(struct list_head *list, int *idx,
923 char *sys, char *event,
924 struct parse_events_error *err,
925 struct list_head *head_config)
928 struct perf_event_attr attr;
930 if (config_attr(&attr, head_config, err,
931 config_term_tracepoint))
935 if (strpbrk(sys, "*?"))
936 return add_tracepoint_multi_sys(list, idx, sys, event,
939 return add_tracepoint_event(list, idx, sys, event,
943 int parse_events_add_numeric(struct parse_events_evlist *data,
944 struct list_head *list,
945 u32 type, u64 config,
946 struct list_head *head_config)
948 struct perf_event_attr attr;
949 LIST_HEAD(config_terms);
951 memset(&attr, 0, sizeof(attr));
953 attr.config = config;
956 if (config_attr(&attr, head_config, data->error,
960 if (get_config_terms(head_config, &config_terms))
964 return add_event(list, &data->idx, &attr, NULL, &config_terms);
967 static int parse_events__is_name_term(struct parse_events_term *term)
969 return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME;
972 static char *pmu_event_name(struct list_head *head_terms)
974 struct parse_events_term *term;
976 list_for_each_entry(term, head_terms, list)
977 if (parse_events__is_name_term(term))
978 return term->val.str;
983 int parse_events_add_pmu(struct parse_events_evlist *data,
984 struct list_head *list, char *name,
985 struct list_head *head_config)
987 struct perf_event_attr attr;
988 struct perf_pmu_info info;
989 struct perf_pmu *pmu;
990 struct perf_evsel *evsel;
991 LIST_HEAD(config_terms);
993 pmu = perf_pmu__find(name);
997 if (pmu->default_config) {
998 memcpy(&attr, pmu->default_config,
999 sizeof(struct perf_event_attr));
1001 memset(&attr, 0, sizeof(attr));
1005 attr.type = pmu->type;
1006 evsel = __add_event(list, &data->idx, &attr, NULL, pmu->cpus, NULL);
1007 return evsel ? 0 : -ENOMEM;
1010 if (perf_pmu__check_alias(pmu, head_config, &info))
1014 * Configure hardcoded terms first, no need to check
1015 * return value when called with fail == 0 ;)
1017 if (config_attr(&attr, head_config, data->error, config_term_pmu))
1020 if (get_config_terms(head_config, &config_terms))
1023 if (perf_pmu__config(pmu, &attr, head_config, data->error))
1026 evsel = __add_event(list, &data->idx, &attr,
1027 pmu_event_name(head_config), pmu->cpus,
1030 evsel->unit = info.unit;
1031 evsel->scale = info.scale;
1032 evsel->per_pkg = info.per_pkg;
1033 evsel->snapshot = info.snapshot;
1036 return evsel ? 0 : -ENOMEM;
1039 int parse_events__modifier_group(struct list_head *list,
1042 return parse_events__modifier_event(list, event_mod, true);
1045 void parse_events__set_leader(char *name, struct list_head *list)
1047 struct perf_evsel *leader;
1049 if (list_empty(list)) {
1050 WARN_ONCE(true, "WARNING: failed to set leader: empty list");
1054 __perf_evlist__set_leader(list);
1055 leader = list_entry(list->next, struct perf_evsel, node);
1056 leader->group_name = name ? strdup(name) : NULL;
1059 /* list_event is assumed to point to malloc'ed memory */
1060 void parse_events_update_lists(struct list_head *list_event,
1061 struct list_head *list_all)
1064 * Called for single event definition. Update the
1065 * 'all event' list, and reinit the 'single event'
1066 * list, for next event definition.
1068 list_splice_tail(list_event, list_all);
1072 struct event_modifier {
1086 static int get_event_modifier(struct event_modifier *mod, char *str,
1087 struct perf_evsel *evsel)
1089 int eu = evsel ? evsel->attr.exclude_user : 0;
1090 int ek = evsel ? evsel->attr.exclude_kernel : 0;
1091 int eh = evsel ? evsel->attr.exclude_hv : 0;
1092 int eH = evsel ? evsel->attr.exclude_host : 0;
1093 int eG = evsel ? evsel->attr.exclude_guest : 0;
1094 int eI = evsel ? evsel->attr.exclude_idle : 0;
1095 int precise = evsel ? evsel->attr.precise_ip : 0;
1096 int precise_max = 0;
1097 int sample_read = 0;
1098 int pinned = evsel ? evsel->attr.pinned : 0;
1100 int exclude = eu | ek | eh;
1101 int exclude_GH = evsel ? evsel->exclude_GH : 0;
1103 memset(mod, 0, sizeof(*mod));
1108 exclude = eu = ek = eh = 1;
1110 } else if (*str == 'k') {
1112 exclude = eu = ek = eh = 1;
1114 } else if (*str == 'h') {
1116 exclude = eu = ek = eh = 1;
1118 } else if (*str == 'G') {
1120 exclude_GH = eG = eH = 1;
1122 } else if (*str == 'H') {
1124 exclude_GH = eG = eH = 1;
1126 } else if (*str == 'I') {
1128 } else if (*str == 'p') {
1130 /* use of precise requires exclude_guest */
1133 } else if (*str == 'P') {
1135 } else if (*str == 'S') {
1137 } else if (*str == 'D') {
1148 * 0 - SAMPLE_IP can have arbitrary skid
1149 * 1 - SAMPLE_IP must have constant skid
1150 * 2 - SAMPLE_IP requested to have 0 skid
1151 * 3 - SAMPLE_IP must have 0 skid
1153 * See also PERF_RECORD_MISC_EXACT_IP
1164 mod->precise = precise;
1165 mod->precise_max = precise_max;
1166 mod->exclude_GH = exclude_GH;
1167 mod->sample_read = sample_read;
1168 mod->pinned = pinned;
1174 * Basic modifier sanity check to validate it contains only one
1175 * instance of any modifier (apart from 'p') present.
1177 static int check_modifier(char *str)
1181 /* The sizeof includes 0 byte as well. */
1182 if (strlen(str) > (sizeof("ukhGHpppPSDI") - 1))
1186 if (*p != 'p' && strchr(p + 1, *p))
1194 int parse_events__modifier_event(struct list_head *list, char *str, bool add)
1196 struct perf_evsel *evsel;
1197 struct event_modifier mod;
1202 if (check_modifier(str))
1205 if (!add && get_event_modifier(&mod, str, NULL))
1208 __evlist__for_each(list, evsel) {
1209 if (add && get_event_modifier(&mod, str, evsel))
1212 evsel->attr.exclude_user = mod.eu;
1213 evsel->attr.exclude_kernel = mod.ek;
1214 evsel->attr.exclude_hv = mod.eh;
1215 evsel->attr.precise_ip = mod.precise;
1216 evsel->attr.exclude_host = mod.eH;
1217 evsel->attr.exclude_guest = mod.eG;
1218 evsel->attr.exclude_idle = mod.eI;
1219 evsel->exclude_GH = mod.exclude_GH;
1220 evsel->sample_read = mod.sample_read;
1221 evsel->precise_max = mod.precise_max;
1223 if (perf_evsel__is_group_leader(evsel))
1224 evsel->attr.pinned = mod.pinned;
1230 int parse_events_name(struct list_head *list, char *name)
1232 struct perf_evsel *evsel;
1234 __evlist__for_each(list, evsel) {
1236 evsel->name = strdup(name);
1243 comp_pmu(const void *p1, const void *p2)
1245 struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1;
1246 struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2;
1248 return strcmp(pmu1->symbol, pmu2->symbol);
1251 static void perf_pmu__parse_cleanup(void)
1253 if (perf_pmu_events_list_num > 0) {
1254 struct perf_pmu_event_symbol *p;
1257 for (i = 0; i < perf_pmu_events_list_num; i++) {
1258 p = perf_pmu_events_list + i;
1261 free(perf_pmu_events_list);
1262 perf_pmu_events_list = NULL;
1263 perf_pmu_events_list_num = 0;
1267 #define SET_SYMBOL(str, stype) \
1276 * Read the pmu events list from sysfs
1277 * Save it into perf_pmu_events_list
1279 static void perf_pmu__parse_init(void)
1282 struct perf_pmu *pmu = NULL;
1283 struct perf_pmu_alias *alias;
1286 pmu = perf_pmu__find("cpu");
1287 if ((pmu == NULL) || list_empty(&pmu->aliases)) {
1288 perf_pmu_events_list_num = -1;
1291 list_for_each_entry(alias, &pmu->aliases, list) {
1292 if (strchr(alias->name, '-'))
1296 perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len);
1297 if (!perf_pmu_events_list)
1299 perf_pmu_events_list_num = len;
1302 list_for_each_entry(alias, &pmu->aliases, list) {
1303 struct perf_pmu_event_symbol *p = perf_pmu_events_list + len;
1304 char *tmp = strchr(alias->name, '-');
1307 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
1308 PMU_EVENT_SYMBOL_PREFIX);
1310 SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX);
1313 SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL);
1317 qsort(perf_pmu_events_list, len,
1318 sizeof(struct perf_pmu_event_symbol), comp_pmu);
1322 perf_pmu__parse_cleanup();
1325 enum perf_pmu_event_symbol_type
1326 perf_pmu__parse_check(const char *name)
1328 struct perf_pmu_event_symbol p, *r;
1330 /* scan kernel pmu events from sysfs if needed */
1331 if (perf_pmu_events_list_num == 0)
1332 perf_pmu__parse_init();
1334 * name "cpu" could be prefix of cpu-cycles or cpu// events.
1335 * cpu-cycles has been handled by hardcode.
1336 * So it must be cpu// events, not kernel pmu event.
1338 if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu"))
1339 return PMU_EVENT_SYMBOL_ERR;
1341 p.symbol = strdup(name);
1342 r = bsearch(&p, perf_pmu_events_list,
1343 (size_t) perf_pmu_events_list_num,
1344 sizeof(struct perf_pmu_event_symbol), comp_pmu);
1346 return r ? r->type : PMU_EVENT_SYMBOL_ERR;
1349 static int parse_events__scanner(const char *str, void *data, int start_token)
1351 YY_BUFFER_STATE buffer;
1355 ret = parse_events_lex_init_extra(start_token, &scanner);
1359 buffer = parse_events__scan_string(str, scanner);
1362 parse_events_debug = 1;
1364 ret = parse_events_parse(data, scanner);
1366 parse_events__flush_buffer(buffer, scanner);
1367 parse_events__delete_buffer(buffer, scanner);
1368 parse_events_lex_destroy(scanner);
1373 * parse event config string, return a list of event terms.
1375 int parse_events_terms(struct list_head *terms, const char *str)
1377 struct parse_events_terms data = {
1382 ret = parse_events__scanner(str, &data, PE_START_TERMS);
1384 list_splice(data.terms, terms);
1390 parse_events__free_terms(data.terms);
1394 int parse_events(struct perf_evlist *evlist, const char *str,
1395 struct parse_events_error *err)
1397 struct parse_events_evlist data = {
1398 .list = LIST_HEAD_INIT(data.list),
1399 .idx = evlist->nr_entries,
1404 ret = parse_events__scanner(str, &data, PE_START_EVENTS);
1405 perf_pmu__parse_cleanup();
1407 struct perf_evsel *last;
1409 if (list_empty(&data.list)) {
1410 WARN_ONCE(true, "WARNING: event parser found nothing");
1414 perf_evlist__splice_list_tail(evlist, &data.list);
1415 evlist->nr_groups += data.nr_groups;
1416 last = perf_evlist__last(evlist);
1417 last->cmdline_group_boundary = true;
1423 * There are 2 users - builtin-record and builtin-test objects.
1424 * Both call perf_evlist__delete in case of error, so we dont
1430 #define MAX_WIDTH 1000
1431 static int get_term_width(void)
1435 get_term_dimensions(&ws);
1436 return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
1439 static void parse_events_print_error(struct parse_events_error *err,
1442 const char *str = "invalid or unsupported event: ";
1443 char _buf[MAX_WIDTH];
1444 char *buf = (char *) event;
1448 /* -2 for extra '' in the final fprintf */
1449 int width = get_term_width() - 2;
1450 int len_event = strlen(event);
1451 int len_str, max_len, cut = 0;
1454 * Maximum error index indent, we will cut
1455 * the event string if it's bigger.
1457 int max_err_idx = 13;
1460 * Let's be specific with the message when
1461 * we have the precise error.
1463 str = "event syntax error: ";
1464 len_str = strlen(str);
1465 max_len = width - len_str;
1469 /* We're cutting from the beggining. */
1470 if (err->idx > max_err_idx)
1471 cut = err->idx - max_err_idx;
1473 strncpy(buf, event + cut, max_len);
1475 /* Mark cut parts with '..' on both sides. */
1477 buf[0] = buf[1] = '.';
1479 if ((len_event - cut) > max_len) {
1480 buf[max_len - 1] = buf[max_len - 2] = '.';
1484 idx = len_str + err->idx - cut;
1487 fprintf(stderr, "%s'%s'\n", str, buf);
1489 fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err->str);
1491 fprintf(stderr, "\n%s\n", err->help);
1496 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
1501 int parse_events_option(const struct option *opt, const char *str,
1502 int unset __maybe_unused)
1504 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1505 struct parse_events_error err = { .idx = 0, };
1506 int ret = parse_events(evlist, str, &err);
1509 parse_events_print_error(&err, str);
1515 foreach_evsel_in_last_glob(struct perf_evlist *evlist,
1516 int (*func)(struct perf_evsel *evsel,
1520 struct perf_evsel *last = NULL;
1524 * Don't return when list_empty, give func a chance to report
1525 * error when it found last == NULL.
1527 * So no need to WARN here, let *func do this.
1529 if (evlist->nr_entries > 0)
1530 last = perf_evlist__last(evlist);
1533 err = (*func)(last, arg);
1539 if (last->node.prev == &evlist->entries)
1541 last = list_entry(last->node.prev, struct perf_evsel, node);
1542 } while (!last->cmdline_group_boundary);
1547 static int set_filter(struct perf_evsel *evsel, const void *arg)
1549 const char *str = arg;
1551 if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
1553 "--filter option should follow a -e tracepoint option\n");
1557 if (perf_evsel__append_filter(evsel, "&&", str) < 0) {
1559 "not enough memory to hold filter string\n");
1566 int parse_filter(const struct option *opt, const char *str,
1567 int unset __maybe_unused)
1569 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1571 return foreach_evsel_in_last_glob(evlist, set_filter,
1575 static int add_exclude_perf_filter(struct perf_evsel *evsel,
1576 const void *arg __maybe_unused)
1578 char new_filter[64];
1580 if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
1582 "--exclude-perf option should follow a -e tracepoint option\n");
1586 snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
1588 if (perf_evsel__append_filter(evsel, "&&", new_filter) < 0) {
1590 "not enough memory to hold filter string\n");
1597 int exclude_perf(const struct option *opt,
1598 const char *arg __maybe_unused,
1599 int unset __maybe_unused)
1601 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
1603 return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
1607 static const char * const event_type_descriptors[] = {
1611 "Hardware cache event",
1612 "Raw hardware event descriptor",
1613 "Hardware breakpoint",
1616 static int cmp_string(const void *a, const void *b)
1618 const char * const *as = a;
1619 const char * const *bs = b;
1621 return strcmp(*as, *bs);
1625 * Print the events from <debugfs_mount_point>/tracing/events
1628 void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
1631 DIR *sys_dir, *evt_dir;
1632 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
1633 char evt_path[MAXPATHLEN];
1634 char dir_path[MAXPATHLEN];
1635 char **evt_list = NULL;
1636 unsigned int evt_i = 0, evt_num = 0;
1637 bool evt_num_known = false;
1640 sys_dir = opendir(tracing_events_path);
1644 if (evt_num_known) {
1645 evt_list = zalloc(sizeof(char *) * evt_num);
1647 goto out_close_sys_dir;
1650 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
1651 if (subsys_glob != NULL &&
1652 !strglobmatch(sys_dirent.d_name, subsys_glob))
1655 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1657 evt_dir = opendir(dir_path);
1661 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
1662 if (event_glob != NULL &&
1663 !strglobmatch(evt_dirent.d_name, event_glob))
1666 if (!evt_num_known) {
1671 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1672 sys_dirent.d_name, evt_dirent.d_name);
1674 evt_list[evt_i] = strdup(evt_path);
1675 if (evt_list[evt_i] == NULL)
1676 goto out_close_evt_dir;
1683 if (!evt_num_known) {
1684 evt_num_known = true;
1687 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1689 while (evt_i < evt_num) {
1691 printf("%s ", evt_list[evt_i++]);
1694 printf(" %-50s [%s]\n", evt_list[evt_i++],
1695 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
1697 if (evt_num && pager_in_use())
1702 for (evt_i = 0; evt_i < evt_num; evt_i++)
1703 zfree(&evt_list[evt_i]);
1712 printf("FATAL: not enough memory to print %s\n",
1713 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
1719 * Check whether event is in <debugfs_mount_point>/tracing/events
1722 int is_valid_tracepoint(const char *event_string)
1724 DIR *sys_dir, *evt_dir;
1725 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
1726 char evt_path[MAXPATHLEN];
1727 char dir_path[MAXPATHLEN];
1729 sys_dir = opendir(tracing_events_path);
1733 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
1735 snprintf(dir_path, MAXPATHLEN, "%s/%s", tracing_events_path,
1737 evt_dir = opendir(dir_path);
1741 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
1742 snprintf(evt_path, MAXPATHLEN, "%s:%s",
1743 sys_dirent.d_name, evt_dirent.d_name);
1744 if (!strcmp(evt_path, event_string)) {
1756 static bool is_event_supported(u8 type, unsigned config)
1760 struct perf_evsel *evsel;
1761 struct perf_event_attr attr = {
1767 struct thread_map map;
1774 evsel = perf_evsel__new(&attr);
1776 open_return = perf_evsel__open(evsel, NULL, &tmap.map);
1777 ret = open_return >= 0;
1779 if (open_return == -EACCES) {
1781 * This happens if the paranoid value
1782 * /proc/sys/kernel/perf_event_paranoid is set to 2
1783 * Re-run with exclude_kernel set; we don't do that
1784 * by default as some ARM machines do not support it.
1787 evsel->attr.exclude_kernel = 1;
1788 ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0;
1790 perf_evsel__delete(evsel);
1796 int print_hwcache_events(const char *event_glob, bool name_only)
1798 unsigned int type, op, i, evt_i = 0, evt_num = 0;
1800 char **evt_list = NULL;
1801 bool evt_num_known = false;
1804 if (evt_num_known) {
1805 evt_list = zalloc(sizeof(char *) * evt_num);
1810 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
1811 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
1812 /* skip invalid cache type */
1813 if (!perf_evsel__is_cache_op_valid(type, op))
1816 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
1817 __perf_evsel__hw_cache_type_op_res_name(type, op, i,
1818 name, sizeof(name));
1819 if (event_glob != NULL && !strglobmatch(name, event_glob))
1822 if (!is_event_supported(PERF_TYPE_HW_CACHE,
1823 type | (op << 8) | (i << 16)))
1826 if (!evt_num_known) {
1831 evt_list[evt_i] = strdup(name);
1832 if (evt_list[evt_i] == NULL)
1839 if (!evt_num_known) {
1840 evt_num_known = true;
1843 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1845 while (evt_i < evt_num) {
1847 printf("%s ", evt_list[evt_i++]);
1850 printf(" %-50s [%s]\n", evt_list[evt_i++],
1851 event_type_descriptors[PERF_TYPE_HW_CACHE]);
1853 if (evt_num && pager_in_use())
1858 for (evt_i = 0; evt_i < evt_num; evt_i++)
1859 zfree(&evt_list[evt_i]);
1864 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]);
1870 void print_symbol_events(const char *event_glob, unsigned type,
1871 struct event_symbol *syms, unsigned max,
1874 unsigned int i, evt_i = 0, evt_num = 0;
1875 char name[MAX_NAME_LEN];
1876 char **evt_list = NULL;
1877 bool evt_num_known = false;
1880 if (evt_num_known) {
1881 evt_list = zalloc(sizeof(char *) * evt_num);
1887 for (i = 0; i < max; i++, syms++) {
1889 if (event_glob != NULL && syms->symbol != NULL &&
1890 !(strglobmatch(syms->symbol, event_glob) ||
1891 (syms->alias && strglobmatch(syms->alias, event_glob))))
1894 if (!is_event_supported(type, i))
1897 if (!evt_num_known) {
1902 if (!name_only && strlen(syms->alias))
1903 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
1905 strncpy(name, syms->symbol, MAX_NAME_LEN);
1907 evt_list[evt_i] = strdup(name);
1908 if (evt_list[evt_i] == NULL)
1913 if (!evt_num_known) {
1914 evt_num_known = true;
1917 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
1919 while (evt_i < evt_num) {
1921 printf("%s ", evt_list[evt_i++]);
1924 printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]);
1926 if (evt_num && pager_in_use())
1931 for (evt_i = 0; evt_i < evt_num; evt_i++)
1932 zfree(&evt_list[evt_i]);
1937 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]);
1943 * Print the help text for the event symbols:
1945 void print_events(const char *event_glob, bool name_only)
1947 print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
1948 event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
1950 print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
1951 event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
1953 print_hwcache_events(event_glob, name_only);
1955 print_pmu_events(event_glob, name_only);
1957 if (event_glob != NULL)
1961 printf(" %-50s [%s]\n",
1963 event_type_descriptors[PERF_TYPE_RAW]);
1964 printf(" %-50s [%s]\n",
1965 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
1966 event_type_descriptors[PERF_TYPE_RAW]);
1968 printf(" (see 'man perf-list' on how to encode it)\n\n");
1970 printf(" %-50s [%s]\n",
1971 "mem:<addr>[/len][:access]",
1972 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
1977 print_tracepoint_events(NULL, NULL, name_only);
1980 int parse_events__is_hardcoded_term(struct parse_events_term *term)
1982 return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
1985 static int new_term(struct parse_events_term **_term, int type_val,
1986 int type_term, char *config,
1987 char *str, u64 num, int err_term, int err_val)
1989 struct parse_events_term *term;
1991 term = zalloc(sizeof(*term));
1995 INIT_LIST_HEAD(&term->list);
1996 term->type_val = type_val;
1997 term->type_term = type_term;
1998 term->config = config;
1999 term->err_term = err_term;
2000 term->err_val = err_val;
2003 case PARSE_EVENTS__TERM_TYPE_NUM:
2004 term->val.num = num;
2006 case PARSE_EVENTS__TERM_TYPE_STR:
2007 term->val.str = str;
2018 int parse_events_term__num(struct parse_events_term **term,
2019 int type_term, char *config, u64 num,
2020 void *loc_term_, void *loc_val_)
2022 YYLTYPE *loc_term = loc_term_;
2023 YYLTYPE *loc_val = loc_val_;
2025 return new_term(term, PARSE_EVENTS__TERM_TYPE_NUM, type_term,
2027 loc_term ? loc_term->first_column : 0,
2028 loc_val ? loc_val->first_column : 0);
2031 int parse_events_term__str(struct parse_events_term **term,
2032 int type_term, char *config, char *str,
2033 void *loc_term_, void *loc_val_)
2035 YYLTYPE *loc_term = loc_term_;
2036 YYLTYPE *loc_val = loc_val_;
2038 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR, type_term,
2040 loc_term ? loc_term->first_column : 0,
2041 loc_val ? loc_val->first_column : 0);
2044 int parse_events_term__sym_hw(struct parse_events_term **term,
2045 char *config, unsigned idx)
2047 struct event_symbol *sym;
2049 BUG_ON(idx >= PERF_COUNT_HW_MAX);
2050 sym = &event_symbols_hw[idx];
2053 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
2054 PARSE_EVENTS__TERM_TYPE_USER, config,
2055 (char *) sym->symbol, 0, 0, 0);
2057 return new_term(term, PARSE_EVENTS__TERM_TYPE_STR,
2058 PARSE_EVENTS__TERM_TYPE_USER,
2059 (char *) "event", (char *) sym->symbol,
2063 int parse_events_term__clone(struct parse_events_term **new,
2064 struct parse_events_term *term)
2066 return new_term(new, term->type_val, term->type_term, term->config,
2067 term->val.str, term->val.num,
2068 term->err_term, term->err_val);
2071 void parse_events__free_terms(struct list_head *terms)
2073 struct parse_events_term *term, *h;
2075 list_for_each_entry_safe(term, h, terms, list)
2079 void parse_events_evlist_error(struct parse_events_evlist *data,
2080 int idx, const char *str)
2082 struct parse_events_error *err = data->error;
2087 err->str = strdup(str);
2088 WARN_ONCE(!err->str, "WARNING: failed to allocate error string");
2092 * Return string contains valid config terms of an event.
2093 * @additional_terms: For terms such as PMU sysfs terms.
2095 char *parse_events_formats_error_string(char *additional_terms)
2098 static const char *static_terms = "config,config1,config2,name,"
2099 "period,freq,branch_type,time,"
2100 "call-graph,stack-size\n";
2103 if (additional_terms) {
2104 if (asprintf(&str, "valid terms: %s,%s",
2105 additional_terms, static_terms) < 0)
2108 if (asprintf(&str, "valid terms: %s", static_terms) < 0)