1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/hw_breakpoint.h>
4 #include <linux/zalloc.h>
11 #include <sys/param.h>
16 #include <subcmd/pager.h>
17 #include <subcmd/parse-options.h>
18 #include "parse-events.h"
19 #include <subcmd/exec-cmd.h>
22 #include "bpf-loader.h"
24 #include <api/fs/tracing_path.h>
25 #include <perf/cpumap.h>
26 #include "parse-events-bison.h"
27 #define YY_EXTRA_TYPE void*
28 #include "parse-events-flex.h"
30 #include "thread_map.h"
31 #include "probe-file.h"
33 #include "util/parse-branch-options.h"
34 #include "metricgroup.h"
35 #include "util/evsel_config.h"
36 #include "util/event.h"
38 #include "util/parse-events-hybrid.h"
39 #include "util/pmu-hybrid.h"
42 #define MAX_NAME_LEN 100
45 extern int parse_events_debug;
47 int parse_events_parse(void *parse_state, void *scanner);
48 static int get_config_terms(struct list_head *head_config,
49 struct list_head *head_terms __maybe_unused);
50 static int parse_events__with_hybrid_pmu(struct parse_events_state *parse_state,
51 const char *str, char *pmu_name,
52 struct list_head *list);
54 static struct perf_pmu_event_symbol *perf_pmu_events_list;
56 * The variable indicates the number of supported pmu event symbols.
57 * 0 means not initialized and ready to init
58 * -1 means failed to init, don't try anymore
59 * >0 is the number of supported pmu event symbols
61 static int perf_pmu_events_list_num;
63 struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
64 [PERF_COUNT_HW_CPU_CYCLES] = {
65 .symbol = "cpu-cycles",
68 [PERF_COUNT_HW_INSTRUCTIONS] = {
69 .symbol = "instructions",
72 [PERF_COUNT_HW_CACHE_REFERENCES] = {
73 .symbol = "cache-references",
76 [PERF_COUNT_HW_CACHE_MISSES] = {
77 .symbol = "cache-misses",
80 [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = {
81 .symbol = "branch-instructions",
84 [PERF_COUNT_HW_BRANCH_MISSES] = {
85 .symbol = "branch-misses",
88 [PERF_COUNT_HW_BUS_CYCLES] = {
89 .symbol = "bus-cycles",
92 [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = {
93 .symbol = "stalled-cycles-frontend",
94 .alias = "idle-cycles-frontend",
96 [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = {
97 .symbol = "stalled-cycles-backend",
98 .alias = "idle-cycles-backend",
100 [PERF_COUNT_HW_REF_CPU_CYCLES] = {
101 .symbol = "ref-cycles",
106 struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
107 [PERF_COUNT_SW_CPU_CLOCK] = {
108 .symbol = "cpu-clock",
111 [PERF_COUNT_SW_TASK_CLOCK] = {
112 .symbol = "task-clock",
115 [PERF_COUNT_SW_PAGE_FAULTS] = {
116 .symbol = "page-faults",
119 [PERF_COUNT_SW_CONTEXT_SWITCHES] = {
120 .symbol = "context-switches",
123 [PERF_COUNT_SW_CPU_MIGRATIONS] = {
124 .symbol = "cpu-migrations",
125 .alias = "migrations",
127 [PERF_COUNT_SW_PAGE_FAULTS_MIN] = {
128 .symbol = "minor-faults",
131 [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = {
132 .symbol = "major-faults",
135 [PERF_COUNT_SW_ALIGNMENT_FAULTS] = {
136 .symbol = "alignment-faults",
139 [PERF_COUNT_SW_EMULATION_FAULTS] = {
140 .symbol = "emulation-faults",
143 [PERF_COUNT_SW_DUMMY] = {
147 [PERF_COUNT_SW_BPF_OUTPUT] = {
148 .symbol = "bpf-output",
151 [PERF_COUNT_SW_CGROUP_SWITCHES] = {
152 .symbol = "cgroup-switches",
157 #define __PERF_EVENT_FIELD(config, name) \
158 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
160 #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
161 #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
162 #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
163 #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
165 #define for_each_subsystem(sys_dir, sys_dirent) \
166 while ((sys_dirent = readdir(sys_dir)) != NULL) \
167 if (sys_dirent->d_type == DT_DIR && \
168 (strcmp(sys_dirent->d_name, ".")) && \
169 (strcmp(sys_dirent->d_name, "..")))
171 static int tp_event_has_id(const char *dir_path, struct dirent *evt_dir)
173 char evt_path[MAXPATHLEN];
176 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, evt_dir->d_name);
177 fd = open(evt_path, O_RDONLY);
185 #define for_each_event(dir_path, evt_dir, evt_dirent) \
186 while ((evt_dirent = readdir(evt_dir)) != NULL) \
187 if (evt_dirent->d_type == DT_DIR && \
188 (strcmp(evt_dirent->d_name, ".")) && \
189 (strcmp(evt_dirent->d_name, "..")) && \
190 (!tp_event_has_id(dir_path, evt_dirent)))
192 #define MAX_EVENT_LENGTH 512
194 struct tracepoint_path *tracepoint_id_to_path(u64 config)
196 struct tracepoint_path *path = NULL;
197 DIR *sys_dir, *evt_dir;
198 struct dirent *sys_dirent, *evt_dirent;
202 char evt_path[MAXPATHLEN];
205 sys_dir = tracing_events__opendir();
209 for_each_subsystem(sys_dir, sys_dirent) {
210 dir_path = get_events_file(sys_dirent->d_name);
213 evt_dir = opendir(dir_path);
217 for_each_event(dir_path, evt_dir, evt_dirent) {
219 scnprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
221 fd = open(evt_path, O_RDONLY);
224 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
231 put_events_file(dir_path);
234 path = zalloc(sizeof(*path));
237 if (asprintf(&path->system, "%.*s", MAX_EVENT_LENGTH, sys_dirent->d_name) < 0) {
241 if (asprintf(&path->name, "%.*s", MAX_EVENT_LENGTH, evt_dirent->d_name) < 0) {
242 zfree(&path->system);
251 put_events_file(dir_path);
258 struct tracepoint_path *tracepoint_name_to_path(const char *name)
260 struct tracepoint_path *path = zalloc(sizeof(*path));
261 char *str = strchr(name, ':');
263 if (path == NULL || str == NULL) {
268 path->system = strndup(name, str - name);
269 path->name = strdup(str+1);
271 if (path->system == NULL || path->name == NULL) {
272 zfree(&path->system);
280 const char *event_type(int type)
283 case PERF_TYPE_HARDWARE:
286 case PERF_TYPE_SOFTWARE:
289 case PERF_TYPE_TRACEPOINT:
292 case PERF_TYPE_HW_CACHE:
293 return "hardware-cache";
302 static char *get_config_str(struct list_head *head_terms, int type_term)
304 struct parse_events_term *term;
309 list_for_each_entry(term, head_terms, list)
310 if (term->type_term == type_term)
311 return term->val.str;
316 static char *get_config_metric_id(struct list_head *head_terms)
318 return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_METRIC_ID);
321 static char *get_config_name(struct list_head *head_terms)
323 return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_NAME);
326 static struct evsel *
327 __add_event(struct list_head *list, int *idx,
328 struct perf_event_attr *attr,
330 const char *name, const char *metric_id, struct perf_pmu *pmu,
331 struct list_head *config_terms, bool auto_merge_stats,
332 const char *cpu_list)
335 struct perf_cpu_map *cpus = pmu ? perf_cpu_map__get(pmu->cpus) :
336 cpu_list ? perf_cpu_map__new(cpu_list) : NULL;
338 if (pmu && attr->type == PERF_TYPE_RAW)
339 perf_pmu__warn_invalid_config(pmu, attr->config, name);
342 event_attr_init(attr);
344 evsel = evsel__new_idx(attr, *idx);
346 perf_cpu_map__put(cpus);
351 evsel->core.cpus = cpus;
352 evsel->core.own_cpus = perf_cpu_map__get(cpus);
353 evsel->core.system_wide = pmu ? pmu->is_uncore : false;
354 evsel->auto_merge_stats = auto_merge_stats;
357 evsel->name = strdup(name);
360 evsel->metric_id = strdup(metric_id);
363 list_splice_init(config_terms, &evsel->config_terms);
366 list_add_tail(&evsel->core.node, list);
371 struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
372 const char *name, const char *metric_id,
373 struct perf_pmu *pmu)
375 return __add_event(/*list=*/NULL, &idx, attr, /*init_attr=*/false, name,
376 metric_id, pmu, /*config_terms=*/NULL,
377 /*auto_merge_stats=*/false, /*cpu_list=*/NULL);
380 static int add_event(struct list_head *list, int *idx,
381 struct perf_event_attr *attr, const char *name,
382 const char *metric_id, struct list_head *config_terms)
384 return __add_event(list, idx, attr, /*init_attr*/true, name, metric_id,
385 /*pmu=*/NULL, config_terms,
386 /*auto_merge_stats=*/false, /*cpu_list=*/NULL) ? 0 : -ENOMEM;
389 static int add_event_tool(struct list_head *list, int *idx,
390 enum perf_tool_event tool_event)
393 struct perf_event_attr attr = {
394 .type = PERF_TYPE_SOFTWARE,
395 .config = PERF_COUNT_SW_DUMMY,
398 evsel = __add_event(list, idx, &attr, /*init_attr=*/true, /*name=*/NULL,
399 /*metric_id=*/NULL, /*pmu=*/NULL,
400 /*config_terms=*/NULL, /*auto_merge_stats=*/false,
404 evsel->tool_event = tool_event;
405 if (tool_event == PERF_TOOL_DURATION_TIME) {
406 free((char *)evsel->unit);
407 evsel->unit = strdup("ns");
412 static int parse_aliases(char *str, const char *names[][EVSEL__MAX_ALIASES], int size)
417 for (i = 0; i < size; i++) {
418 for (j = 0; j < EVSEL__MAX_ALIASES && names[i][j]; j++) {
419 n = strlen(names[i][j]);
420 if (n > longest && !strncasecmp(str, names[i][j], n))
430 typedef int config_term_func_t(struct perf_event_attr *attr,
431 struct parse_events_term *term,
432 struct parse_events_error *err);
433 static int config_term_common(struct perf_event_attr *attr,
434 struct parse_events_term *term,
435 struct parse_events_error *err);
436 static int config_attr(struct perf_event_attr *attr,
437 struct list_head *head,
438 struct parse_events_error *err,
439 config_term_func_t config_term);
441 int parse_events_add_cache(struct list_head *list, int *idx,
442 char *type, char *op_result1, char *op_result2,
443 struct parse_events_error *err,
444 struct list_head *head_config,
445 struct parse_events_state *parse_state)
447 struct perf_event_attr attr;
448 LIST_HEAD(config_terms);
449 char name[MAX_NAME_LEN];
450 const char *config_name, *metric_id;
451 int cache_type = -1, cache_op = -1, cache_result = -1;
452 char *op_result[2] = { op_result1, op_result2 };
457 * No fallback - if we cannot get a clear cache type
460 cache_type = parse_aliases(type, evsel__hw_cache, PERF_COUNT_HW_CACHE_MAX);
461 if (cache_type == -1)
464 config_name = get_config_name(head_config);
465 n = snprintf(name, MAX_NAME_LEN, "%s", type);
467 for (i = 0; (i < 2) && (op_result[i]); i++) {
468 char *str = op_result[i];
470 n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
472 if (cache_op == -1) {
473 cache_op = parse_aliases(str, evsel__hw_cache_op,
474 PERF_COUNT_HW_CACHE_OP_MAX);
476 if (!evsel__is_cache_op_valid(cache_type, cache_op))
482 if (cache_result == -1) {
483 cache_result = parse_aliases(str, evsel__hw_cache_result,
484 PERF_COUNT_HW_CACHE_RESULT_MAX);
485 if (cache_result >= 0)
491 * Fall back to reads:
494 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
497 * Fall back to accesses:
499 if (cache_result == -1)
500 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
502 memset(&attr, 0, sizeof(attr));
503 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
504 attr.type = PERF_TYPE_HW_CACHE;
507 if (config_attr(&attr, head_config, err,
511 if (get_config_terms(head_config, &config_terms))
515 metric_id = get_config_metric_id(head_config);
516 ret = parse_events__add_cache_hybrid(list, idx, &attr,
517 config_name ? : name,
520 &hybrid, parse_state);
524 ret = add_event(list, idx, &attr, config_name ? : name, metric_id,
527 free_config_terms(&config_terms);
531 static void tracepoint_error(struct parse_events_error *e, int err,
532 const char *sys, const char *name)
541 * We get error directly from syscall errno ( > 0),
542 * or from encoded pointer's error ( < 0).
548 str = "can't access trace events";
551 str = "unknown tracepoint";
554 str = "failed to add tracepoint";
558 tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name);
559 parse_events_error__handle(e, 0, strdup(str), strdup(help));
562 static int add_tracepoint(struct list_head *list, int *idx,
563 const char *sys_name, const char *evt_name,
564 struct parse_events_error *err,
565 struct list_head *head_config)
567 struct evsel *evsel = evsel__newtp_idx(sys_name, evt_name, (*idx)++);
570 tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name);
571 return PTR_ERR(evsel);
575 LIST_HEAD(config_terms);
577 if (get_config_terms(head_config, &config_terms))
579 list_splice(&config_terms, &evsel->config_terms);
582 list_add_tail(&evsel->core.node, list);
586 static int add_tracepoint_multi_event(struct list_head *list, int *idx,
587 const char *sys_name, const char *evt_name,
588 struct parse_events_error *err,
589 struct list_head *head_config)
592 struct dirent *evt_ent;
594 int ret = 0, found = 0;
596 evt_path = get_events_file(sys_name);
598 tracepoint_error(err, errno, sys_name, evt_name);
601 evt_dir = opendir(evt_path);
603 put_events_file(evt_path);
604 tracepoint_error(err, errno, sys_name, evt_name);
608 while (!ret && (evt_ent = readdir(evt_dir))) {
609 if (!strcmp(evt_ent->d_name, ".")
610 || !strcmp(evt_ent->d_name, "..")
611 || !strcmp(evt_ent->d_name, "enable")
612 || !strcmp(evt_ent->d_name, "filter"))
615 if (!strglobmatch(evt_ent->d_name, evt_name))
620 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name,
625 tracepoint_error(err, ENOENT, sys_name, evt_name);
629 put_events_file(evt_path);
634 static int add_tracepoint_event(struct list_head *list, int *idx,
635 const char *sys_name, const char *evt_name,
636 struct parse_events_error *err,
637 struct list_head *head_config)
639 return strpbrk(evt_name, "*?") ?
640 add_tracepoint_multi_event(list, idx, sys_name, evt_name,
642 add_tracepoint(list, idx, sys_name, evt_name,
646 static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
647 const char *sys_name, const char *evt_name,
648 struct parse_events_error *err,
649 struct list_head *head_config)
651 struct dirent *events_ent;
655 events_dir = tracing_events__opendir();
657 tracepoint_error(err, errno, sys_name, evt_name);
661 while (!ret && (events_ent = readdir(events_dir))) {
662 if (!strcmp(events_ent->d_name, ".")
663 || !strcmp(events_ent->d_name, "..")
664 || !strcmp(events_ent->d_name, "enable")
665 || !strcmp(events_ent->d_name, "header_event")
666 || !strcmp(events_ent->d_name, "header_page"))
669 if (!strglobmatch(events_ent->d_name, sys_name))
672 ret = add_tracepoint_event(list, idx, events_ent->d_name,
673 evt_name, err, head_config);
676 closedir(events_dir);
680 #ifdef HAVE_LIBBPF_SUPPORT
681 struct __add_bpf_event_param {
682 struct parse_events_state *parse_state;
683 struct list_head *list;
684 struct list_head *head_config;
687 static int add_bpf_event(const char *group, const char *event, int fd, struct bpf_object *obj,
690 LIST_HEAD(new_evsels);
691 struct __add_bpf_event_param *param = _param;
692 struct parse_events_state *parse_state = param->parse_state;
693 struct list_head *list = param->list;
697 * Check if we should add the event, i.e. if it is a TP but starts with a '!',
698 * then don't add the tracepoint, this will be used for something else, like
699 * adding to a BPF_MAP_TYPE_PROG_ARRAY.
701 * See tools/perf/examples/bpf/augmented_raw_syscalls.c
706 pr_debug("add bpf event %s:%s and attach bpf program %d\n",
709 err = parse_events_add_tracepoint(&new_evsels, &parse_state->idx, group,
710 event, parse_state->error,
713 struct evsel *evsel, *tmp;
715 pr_debug("Failed to add BPF event %s:%s\n",
717 list_for_each_entry_safe(evsel, tmp, &new_evsels, core.node) {
718 list_del_init(&evsel->core.node);
719 evsel__delete(evsel);
723 pr_debug("adding %s:%s\n", group, event);
725 list_for_each_entry(pos, &new_evsels, core.node) {
726 pr_debug("adding %s:%s to %p\n",
731 list_splice(&new_evsels, list);
735 int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
736 struct list_head *list,
737 struct bpf_object *obj,
738 struct list_head *head_config)
742 struct __add_bpf_event_param param = {parse_state, list, head_config};
743 static bool registered_unprobe_atexit = false;
745 if (IS_ERR(obj) || !obj) {
746 snprintf(errbuf, sizeof(errbuf),
747 "Internal error: load bpf obj with NULL");
753 * Register atexit handler before calling bpf__probe() so
754 * bpf__probe() don't need to unprobe probe points its already
755 * created when failure.
757 if (!registered_unprobe_atexit) {
759 registered_unprobe_atexit = true;
762 err = bpf__probe(obj);
764 bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf));
768 err = bpf__load(obj);
770 bpf__strerror_load(obj, err, errbuf, sizeof(errbuf));
774 err = bpf__foreach_event(obj, add_bpf_event, ¶m);
776 snprintf(errbuf, sizeof(errbuf),
777 "Attach events in BPF object failed");
783 parse_events_error__handle(parse_state->error, 0,
784 strdup(errbuf), strdup("(add -v to see detail)"));
789 parse_events_config_bpf(struct parse_events_state *parse_state,
790 struct bpf_object *obj,
791 struct list_head *head_config)
793 struct parse_events_term *term;
796 if (!head_config || list_empty(head_config))
799 list_for_each_entry(term, head_config, list) {
802 if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) {
803 parse_events_error__handle(parse_state->error, term->err_term,
804 strdup("Invalid config term for BPF object"),
809 err = bpf__config_obj(obj, term, parse_state->evlist, &error_pos);
814 bpf__strerror_config_obj(obj, term, parse_state->evlist,
815 &error_pos, err, errbuf,
818 if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE)
821 idx = term->err_term + error_pos;
823 parse_events_error__handle(parse_state->error, idx,
826 "Hint:\tValid config terms:\n"
827 " \tmap:[<arraymap>].value<indices>=[value]\n"
828 " \tmap:[<eventmap>].event<indices>=[event]\n"
830 " \twhere <indices> is something like [0,3...5] or [all]\n"
831 " \t(add -v to see detail)"));
839 * Split config terms:
840 * perf record -e bpf.c/call-graph=fp,map:array.value[0]=1/ ...
841 * 'call-graph=fp' is 'evt config', should be applied to each
843 * 'map:array.value[0]=1' is 'obj config', should be processed
844 * with parse_events_config_bpf.
846 * Move object config terms from the first list to obj_head_config.
849 split_bpf_config_terms(struct list_head *evt_head_config,
850 struct list_head *obj_head_config)
852 struct parse_events_term *term, *temp;
855 * Currently, all possible user config term
856 * belong to bpf object. parse_events__is_hardcoded_term()
857 * happens to be a good flag.
859 * See parse_events_config_bpf() and
860 * config_term_tracepoint().
862 list_for_each_entry_safe(term, temp, evt_head_config, list)
863 if (!parse_events__is_hardcoded_term(term))
864 list_move_tail(&term->list, obj_head_config);
867 int parse_events_load_bpf(struct parse_events_state *parse_state,
868 struct list_head *list,
871 struct list_head *head_config)
874 struct bpf_object *obj;
875 LIST_HEAD(obj_head_config);
878 split_bpf_config_terms(head_config, &obj_head_config);
880 obj = bpf__prepare_load(bpf_file_name, source);
887 snprintf(errbuf, sizeof(errbuf),
888 "BPF support is not compiled");
890 bpf__strerror_prepare_load(bpf_file_name,
895 parse_events_error__handle(parse_state->error, 0,
896 strdup(errbuf), strdup("(add -v to see detail)"));
900 err = parse_events_load_bpf_obj(parse_state, list, obj, head_config);
903 err = parse_events_config_bpf(parse_state, obj, &obj_head_config);
906 * Caller doesn't know anything about obj_head_config,
907 * so combine them together again before returning.
910 list_splice_tail(&obj_head_config, head_config);
913 #else // HAVE_LIBBPF_SUPPORT
914 int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
915 struct list_head *list __maybe_unused,
916 struct bpf_object *obj __maybe_unused,
917 struct list_head *head_config __maybe_unused)
919 parse_events_error__handle(parse_state->error, 0,
920 strdup("BPF support is not compiled"),
921 strdup("Make sure libbpf-devel is available at build time."));
925 int parse_events_load_bpf(struct parse_events_state *parse_state,
926 struct list_head *list __maybe_unused,
927 char *bpf_file_name __maybe_unused,
928 bool source __maybe_unused,
929 struct list_head *head_config __maybe_unused)
931 parse_events_error__handle(parse_state->error, 0,
932 strdup("BPF support is not compiled"),
933 strdup("Make sure libbpf-devel is available at build time."));
936 #endif // HAVE_LIBBPF_SUPPORT
939 parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
943 for (i = 0; i < 3; i++) {
944 if (!type || !type[i])
947 #define CHECK_SET_TYPE(bit) \
949 if (attr->bp_type & bit) \
952 attr->bp_type |= bit; \
957 CHECK_SET_TYPE(HW_BREAKPOINT_R);
960 CHECK_SET_TYPE(HW_BREAKPOINT_W);
963 CHECK_SET_TYPE(HW_BREAKPOINT_X);
970 #undef CHECK_SET_TYPE
972 if (!attr->bp_type) /* Default */
973 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
978 int parse_events_add_breakpoint(struct list_head *list, int *idx,
979 u64 addr, char *type, u64 len)
981 struct perf_event_attr attr;
983 memset(&attr, 0, sizeof(attr));
986 if (parse_breakpoint_type(type, &attr))
989 /* Provide some defaults if len is not specified */
991 if (attr.bp_type == HW_BREAKPOINT_X)
994 len = HW_BREAKPOINT_LEN_4;
999 attr.type = PERF_TYPE_BREAKPOINT;
1000 attr.sample_period = 1;
1002 return add_event(list, idx, &attr, /*name=*/NULL, /*mertic_id=*/NULL,
1003 /*config_terms=*/NULL);
1006 static int check_type_val(struct parse_events_term *term,
1007 struct parse_events_error *err,
1010 if (type == term->type_val)
1014 parse_events_error__handle(err, term->err_val,
1015 type == PARSE_EVENTS__TERM_TYPE_NUM
1016 ? strdup("expected numeric value")
1017 : strdup("expected string value"),
1024 * Update according to parse-events.l
1026 static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = {
1027 [PARSE_EVENTS__TERM_TYPE_USER] = "<sysfs term>",
1028 [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config",
1029 [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1",
1030 [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2",
1031 [PARSE_EVENTS__TERM_TYPE_NAME] = "name",
1032 [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period",
1033 [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq",
1034 [PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE] = "branch_type",
1035 [PARSE_EVENTS__TERM_TYPE_TIME] = "time",
1036 [PARSE_EVENTS__TERM_TYPE_CALLGRAPH] = "call-graph",
1037 [PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size",
1038 [PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit",
1039 [PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit",
1040 [PARSE_EVENTS__TERM_TYPE_MAX_STACK] = "max-stack",
1041 [PARSE_EVENTS__TERM_TYPE_MAX_EVENTS] = "nr",
1042 [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite",
1043 [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite",
1044 [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config",
1045 [PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore",
1046 [PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT] = "aux-output",
1047 [PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE] = "aux-sample-size",
1048 [PARSE_EVENTS__TERM_TYPE_METRIC_ID] = "metric-id",
1051 static bool config_term_shrinked;
1054 config_term_avail(int term_type, struct parse_events_error *err)
1058 if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) {
1059 parse_events_error__handle(err, -1,
1060 strdup("Invalid term_type"), NULL);
1063 if (!config_term_shrinked)
1066 switch (term_type) {
1067 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1068 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
1069 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
1070 case PARSE_EVENTS__TERM_TYPE_NAME:
1071 case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
1072 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1073 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1079 /* term_type is validated so indexing is safe */
1080 if (asprintf(&err_str, "'%s' is not usable in 'perf stat'",
1081 config_term_names[term_type]) >= 0)
1082 parse_events_error__handle(err, -1, err_str, NULL);
1087 void parse_events__shrink_config_terms(void)
1089 config_term_shrinked = true;
1092 static int config_term_common(struct perf_event_attr *attr,
1093 struct parse_events_term *term,
1094 struct parse_events_error *err)
1096 #define CHECK_TYPE_VAL(type) \
1098 if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \
1102 switch (term->type_term) {
1103 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1104 CHECK_TYPE_VAL(NUM);
1105 attr->config = term->val.num;
1107 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
1108 CHECK_TYPE_VAL(NUM);
1109 attr->config1 = term->val.num;
1111 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
1112 CHECK_TYPE_VAL(NUM);
1113 attr->config2 = term->val.num;
1115 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1116 CHECK_TYPE_VAL(NUM);
1118 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
1119 CHECK_TYPE_VAL(NUM);
1121 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
1122 CHECK_TYPE_VAL(STR);
1123 if (strcmp(term->val.str, "no") &&
1124 parse_branch_str(term->val.str,
1125 &attr->branch_sample_type)) {
1126 parse_events_error__handle(err, term->err_val,
1127 strdup("invalid branch sample type"),
1132 case PARSE_EVENTS__TERM_TYPE_TIME:
1133 CHECK_TYPE_VAL(NUM);
1134 if (term->val.num > 1) {
1135 parse_events_error__handle(err, term->err_val,
1136 strdup("expected 0 or 1"),
1141 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1142 CHECK_TYPE_VAL(STR);
1144 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1145 CHECK_TYPE_VAL(NUM);
1147 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1148 CHECK_TYPE_VAL(NUM);
1150 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1151 CHECK_TYPE_VAL(NUM);
1153 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1154 CHECK_TYPE_VAL(NUM);
1156 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1157 CHECK_TYPE_VAL(NUM);
1159 case PARSE_EVENTS__TERM_TYPE_NAME:
1160 CHECK_TYPE_VAL(STR);
1162 case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
1163 CHECK_TYPE_VAL(STR);
1165 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1166 CHECK_TYPE_VAL(NUM);
1168 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1169 CHECK_TYPE_VAL(NUM);
1171 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1172 CHECK_TYPE_VAL(NUM);
1173 if ((unsigned int)term->val.num > 1) {
1174 parse_events_error__handle(err, term->err_val,
1175 strdup("expected 0 or 1"),
1180 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1181 CHECK_TYPE_VAL(NUM);
1183 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1184 CHECK_TYPE_VAL(NUM);
1185 if (term->val.num > UINT_MAX) {
1186 parse_events_error__handle(err, term->err_val,
1193 parse_events_error__handle(err, term->err_term,
1194 strdup("unknown term"),
1195 parse_events_formats_error_string(NULL));
1200 * Check term availability after basic checking so
1201 * PARSE_EVENTS__TERM_TYPE_USER can be found and filtered.
1203 * If check availability at the entry of this function,
1204 * user will see "'<sysfs term>' is not usable in 'perf stat'"
1205 * if an invalid config term is provided for legacy events
1206 * (for example, instructions/badterm/...), which is confusing.
1208 if (!config_term_avail(term->type_term, err))
1211 #undef CHECK_TYPE_VAL
1214 static int config_term_pmu(struct perf_event_attr *attr,
1215 struct parse_events_term *term,
1216 struct parse_events_error *err)
1218 if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER ||
1219 term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG)
1221 * Always succeed for sysfs terms, as we dont know
1222 * at this point what type they need to have.
1226 return config_term_common(attr, term, err);
1229 static int config_term_tracepoint(struct perf_event_attr *attr,
1230 struct parse_events_term *term,
1231 struct parse_events_error *err)
1233 switch (term->type_term) {
1234 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1235 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1236 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1237 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1238 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1239 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1240 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1241 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1242 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1243 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1244 return config_term_common(attr, term, err);
1247 parse_events_error__handle(err, term->err_term,
1248 strdup("unknown term"),
1249 strdup("valid terms: call-graph,stack-size\n"));
1257 static int config_attr(struct perf_event_attr *attr,
1258 struct list_head *head,
1259 struct parse_events_error *err,
1260 config_term_func_t config_term)
1262 struct parse_events_term *term;
1264 list_for_each_entry(term, head, list)
1265 if (config_term(attr, term, err))
1271 static int get_config_terms(struct list_head *head_config,
1272 struct list_head *head_terms __maybe_unused)
1274 #define ADD_CONFIG_TERM(__type, __weak) \
1275 struct evsel_config_term *__t; \
1277 __t = zalloc(sizeof(*__t)); \
1281 INIT_LIST_HEAD(&__t->list); \
1282 __t->type = EVSEL__CONFIG_TERM_ ## __type; \
1283 __t->weak = __weak; \
1284 list_add_tail(&__t->list, head_terms)
1286 #define ADD_CONFIG_TERM_VAL(__type, __name, __val, __weak) \
1288 ADD_CONFIG_TERM(__type, __weak); \
1289 __t->val.__name = __val; \
1292 #define ADD_CONFIG_TERM_STR(__type, __val, __weak) \
1294 ADD_CONFIG_TERM(__type, __weak); \
1295 __t->val.str = strdup(__val); \
1296 if (!__t->val.str) { \
1300 __t->free_str = true; \
1303 struct parse_events_term *term;
1305 list_for_each_entry(term, head_config, list) {
1306 switch (term->type_term) {
1307 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1308 ADD_CONFIG_TERM_VAL(PERIOD, period, term->val.num, term->weak);
1310 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
1311 ADD_CONFIG_TERM_VAL(FREQ, freq, term->val.num, term->weak);
1313 case PARSE_EVENTS__TERM_TYPE_TIME:
1314 ADD_CONFIG_TERM_VAL(TIME, time, term->val.num, term->weak);
1316 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1317 ADD_CONFIG_TERM_STR(CALLGRAPH, term->val.str, term->weak);
1319 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
1320 ADD_CONFIG_TERM_STR(BRANCH, term->val.str, term->weak);
1322 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1323 ADD_CONFIG_TERM_VAL(STACK_USER, stack_user,
1324 term->val.num, term->weak);
1326 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1327 ADD_CONFIG_TERM_VAL(INHERIT, inherit,
1328 term->val.num ? 1 : 0, term->weak);
1330 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1331 ADD_CONFIG_TERM_VAL(INHERIT, inherit,
1332 term->val.num ? 0 : 1, term->weak);
1334 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1335 ADD_CONFIG_TERM_VAL(MAX_STACK, max_stack,
1336 term->val.num, term->weak);
1338 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1339 ADD_CONFIG_TERM_VAL(MAX_EVENTS, max_events,
1340 term->val.num, term->weak);
1342 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1343 ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite,
1344 term->val.num ? 1 : 0, term->weak);
1346 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1347 ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite,
1348 term->val.num ? 0 : 1, term->weak);
1350 case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
1351 ADD_CONFIG_TERM_STR(DRV_CFG, term->val.str, term->weak);
1353 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1354 ADD_CONFIG_TERM_VAL(PERCORE, percore,
1355 term->val.num ? true : false, term->weak);
1357 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1358 ADD_CONFIG_TERM_VAL(AUX_OUTPUT, aux_output,
1359 term->val.num ? 1 : 0, term->weak);
1361 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1362 ADD_CONFIG_TERM_VAL(AUX_SAMPLE_SIZE, aux_sample_size,
1363 term->val.num, term->weak);
1373 * Add EVSEL__CONFIG_TERM_CFG_CHG where cfg_chg will have a bit set for
1374 * each bit of attr->config that the user has changed.
1376 static int get_config_chgs(struct perf_pmu *pmu, struct list_head *head_config,
1377 struct list_head *head_terms)
1379 struct parse_events_term *term;
1383 list_for_each_entry(term, head_config, list) {
1384 switch (term->type_term) {
1385 case PARSE_EVENTS__TERM_TYPE_USER:
1386 type = perf_pmu__format_type(&pmu->format, term->config);
1387 if (type != PERF_PMU_FORMAT_VALUE_CONFIG)
1389 bits |= perf_pmu__format_bits(&pmu->format, term->config);
1391 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1400 ADD_CONFIG_TERM_VAL(CFG_CHG, cfg_chg, bits, false);
1402 #undef ADD_CONFIG_TERM
1406 int parse_events_add_tracepoint(struct list_head *list, int *idx,
1407 const char *sys, const char *event,
1408 struct parse_events_error *err,
1409 struct list_head *head_config)
1412 struct perf_event_attr attr;
1414 if (config_attr(&attr, head_config, err,
1415 config_term_tracepoint))
1419 if (strpbrk(sys, "*?"))
1420 return add_tracepoint_multi_sys(list, idx, sys, event,
1423 return add_tracepoint_event(list, idx, sys, event,
1427 int parse_events_add_numeric(struct parse_events_state *parse_state,
1428 struct list_head *list,
1429 u32 type, u64 config,
1430 struct list_head *head_config)
1432 struct perf_event_attr attr;
1433 LIST_HEAD(config_terms);
1434 const char *name, *metric_id;
1438 memset(&attr, 0, sizeof(attr));
1440 attr.config = config;
1443 if (config_attr(&attr, head_config, parse_state->error,
1444 config_term_common))
1447 if (get_config_terms(head_config, &config_terms))
1451 name = get_config_name(head_config);
1452 metric_id = get_config_metric_id(head_config);
1453 ret = parse_events__add_numeric_hybrid(parse_state, list, &attr,
1455 &config_terms, &hybrid);
1457 goto out_free_terms;
1459 ret = add_event(list, &parse_state->idx, &attr, name, metric_id,
1462 free_config_terms(&config_terms);
1466 int parse_events_add_tool(struct parse_events_state *parse_state,
1467 struct list_head *list,
1470 return add_event_tool(list, &parse_state->idx, tool_event);
1473 static bool config_term_percore(struct list_head *config_terms)
1475 struct evsel_config_term *term;
1477 list_for_each_entry(term, config_terms, list) {
1478 if (term->type == EVSEL__CONFIG_TERM_PERCORE)
1479 return term->val.percore;
1485 static int parse_events__inside_hybrid_pmu(struct parse_events_state *parse_state,
1486 struct list_head *list, char *name,
1487 struct list_head *head_config)
1489 struct parse_events_term *term;
1492 if (parse_state->fake_pmu || !head_config || list_empty(head_config) ||
1493 !perf_pmu__is_hybrid(name)) {
1498 * More than one term in list.
1500 if (head_config->next && head_config->next->next != head_config)
1503 term = list_first_entry(head_config, struct parse_events_term, list);
1504 if (term && term->config && strcmp(term->config, "event")) {
1505 ret = parse_events__with_hybrid_pmu(parse_state, term->config,
1512 int parse_events_add_pmu(struct parse_events_state *parse_state,
1513 struct list_head *list, char *name,
1514 struct list_head *head_config,
1515 bool auto_merge_stats,
1518 struct perf_event_attr attr;
1519 struct perf_pmu_info info;
1520 struct perf_pmu *pmu;
1521 struct evsel *evsel;
1522 struct parse_events_error *err = parse_state->error;
1523 bool use_uncore_alias;
1524 LIST_HEAD(config_terms);
1526 pmu = parse_state->fake_pmu ?: perf_pmu__find(name);
1528 if (verbose > 1 && !(pmu && pmu->selectable)) {
1529 fprintf(stderr, "Attempting to add event pmu '%s' with '",
1532 struct parse_events_term *term;
1534 list_for_each_entry(term, head_config, list) {
1535 fprintf(stderr, "%s,", term->config);
1538 fprintf(stderr, "' that may result in non-fatal errors\n");
1544 if (asprintf(&err_str,
1545 "Cannot find PMU `%s'. Missing kernel support?",
1547 parse_events_error__handle(err, 0, err_str, NULL);
1551 if (pmu->default_config) {
1552 memcpy(&attr, pmu->default_config,
1553 sizeof(struct perf_event_attr));
1555 memset(&attr, 0, sizeof(attr));
1558 use_uncore_alias = (pmu->is_uncore && use_alias);
1561 attr.type = pmu->type;
1562 evsel = __add_event(list, &parse_state->idx, &attr,
1563 /*init_attr=*/true, /*name=*/NULL,
1564 /*metric_id=*/NULL, pmu,
1565 /*config_terms=*/NULL, auto_merge_stats,
1568 evsel->pmu_name = name ? strdup(name) : NULL;
1569 evsel->use_uncore_alias = use_uncore_alias;
1576 if (!parse_state->fake_pmu && perf_pmu__check_alias(pmu, head_config, &info))
1580 fprintf(stderr, "After aliases, add event pmu '%s' with '",
1583 struct parse_events_term *term;
1585 list_for_each_entry(term, head_config, list) {
1586 fprintf(stderr, "%s,", term->config);
1589 fprintf(stderr, "' that may result in non-fatal errors\n");
1593 * Configure hardcoded terms first, no need to check
1594 * return value when called with fail == 0 ;)
1596 if (config_attr(&attr, head_config, parse_state->error, config_term_pmu))
1599 if (get_config_terms(head_config, &config_terms))
1603 * When using default config, record which bits of attr->config were
1604 * changed by the user.
1606 if (pmu->default_config && get_config_chgs(pmu, head_config, &config_terms))
1609 if (!parse_events__inside_hybrid_pmu(parse_state, list, name,
1614 if (!parse_state->fake_pmu && perf_pmu__config(pmu, &attr, head_config, parse_state->error)) {
1615 free_config_terms(&config_terms);
1619 evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true,
1620 get_config_name(head_config),
1621 get_config_metric_id(head_config), pmu,
1622 &config_terms, auto_merge_stats, /*cpu_list=*/NULL);
1627 evsel->use_config_name = true;
1629 evsel->pmu_name = name ? strdup(name) : NULL;
1630 evsel->use_uncore_alias = use_uncore_alias;
1631 evsel->percore = config_term_percore(&evsel->config_terms);
1633 if (parse_state->fake_pmu)
1636 free((char *)evsel->unit);
1637 evsel->unit = strdup(info.unit);
1638 evsel->scale = info.scale;
1639 evsel->per_pkg = info.per_pkg;
1640 evsel->snapshot = info.snapshot;
1641 evsel->metric_expr = info.metric_expr;
1642 evsel->metric_name = info.metric_name;
1646 int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
1647 char *str, struct list_head *head,
1648 struct list_head **listp)
1650 struct parse_events_term *term;
1651 struct list_head *list = NULL;
1652 struct list_head *orig_head = NULL;
1653 struct perf_pmu *pmu = NULL;
1660 head = malloc(sizeof(struct list_head));
1664 INIT_LIST_HEAD(head);
1666 config = strdup(str);
1670 if (parse_events_term__num(&term,
1671 PARSE_EVENTS__TERM_TYPE_USER,
1672 config, 1, false, &config,
1677 list_add_tail(&term->list, head);
1679 /* Add it for all PMUs that support the alias */
1680 list = malloc(sizeof(struct list_head));
1684 INIT_LIST_HEAD(list);
1686 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
1687 struct perf_pmu_alias *alias;
1689 list_for_each_entry(alias, &pmu->aliases, list) {
1690 if (!strcasecmp(alias->name, str)) {
1691 parse_events_copy_term_list(head, &orig_head);
1692 if (!parse_events_add_pmu(parse_state, list,
1693 pmu->name, orig_head,
1695 pr_debug("%s -> %s/%s/\n", str,
1696 pmu->name, alias->str);
1699 parse_events_terms__delete(orig_head);
1704 if (parse_state->fake_pmu) {
1705 if (!parse_events_add_pmu(parse_state, list, str, head,
1707 pr_debug("%s -> %s/%s/\n", str, "fake_pmu", str);
1718 parse_events_terms__delete(head);
1722 int parse_events__modifier_group(struct list_head *list,
1725 return parse_events__modifier_event(list, event_mod, true);
1729 * Check if the two uncore PMUs are from the same uncore block
1730 * The format of the uncore PMU name is uncore_#blockname_#pmuidx
1732 static bool is_same_uncore_block(const char *pmu_name_a, const char *pmu_name_b)
1734 char *end_a, *end_b;
1736 end_a = strrchr(pmu_name_a, '_');
1737 end_b = strrchr(pmu_name_b, '_');
1739 if (!end_a || !end_b)
1742 if ((end_a - pmu_name_a) != (end_b - pmu_name_b))
1745 return (strncmp(pmu_name_a, pmu_name_b, end_a - pmu_name_a) == 0);
1749 parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list,
1750 struct parse_events_state *parse_state)
1752 struct evsel *evsel, *leader;
1754 bool is_leader = true;
1755 int i, nr_pmu = 0, total_members, ret = 0;
1757 leader = list_first_entry(list, struct evsel, core.node);
1758 evsel = list_last_entry(list, struct evsel, core.node);
1759 total_members = evsel->core.idx - leader->core.idx + 1;
1761 leaders = calloc(total_members, sizeof(uintptr_t));
1762 if (WARN_ON(!leaders))
1766 * Going through the whole group and doing sanity check.
1767 * All members must use alias, and be from the same uncore block.
1768 * Also, storing the leader events in an array.
1770 __evlist__for_each_entry(list, evsel) {
1772 /* Only split the uncore group which members use alias */
1773 if (!evsel->use_uncore_alias)
1776 /* The events must be from the same uncore block */
1777 if (!is_same_uncore_block(leader->pmu_name, evsel->pmu_name))
1783 * If the event's PMU name starts to repeat, it must be a new
1784 * event. That can be used to distinguish the leader from
1785 * other members, even they have the same event name.
1787 if ((leader != evsel) &&
1788 !strcmp(leader->pmu_name, evsel->pmu_name)) {
1793 /* Store the leader event for each PMU */
1794 leaders[nr_pmu++] = (uintptr_t) evsel;
1797 /* only one event alias */
1798 if (nr_pmu == total_members) {
1799 parse_state->nr_groups--;
1804 * An uncore event alias is a joint name which means the same event
1805 * runs on all PMUs of a block.
1806 * Perf doesn't support mixed events from different PMUs in the same
1807 * group. The big group has to be split into multiple small groups
1808 * which only include the events from the same PMU.
1810 * Here the uncore event aliases must be from the same uncore block.
1811 * The number of PMUs must be same for each alias. The number of new
1812 * small groups equals to the number of PMUs.
1813 * Setting the leader event for corresponding members in each group.
1816 __evlist__for_each_entry(list, evsel) {
1819 evsel__set_leader(evsel, (struct evsel *) leaders[i++]);
1822 /* The number of members and group name are same for each group */
1823 for (i = 0; i < nr_pmu; i++) {
1824 evsel = (struct evsel *) leaders[i];
1825 evsel->core.nr_members = total_members / nr_pmu;
1826 evsel->group_name = name ? strdup(name) : NULL;
1829 /* Take the new small groups into account */
1830 parse_state->nr_groups += nr_pmu - 1;
1839 __weak struct evsel *arch_evlist__leader(struct list_head *list)
1841 return list_first_entry(list, struct evsel, core.node);
1844 void parse_events__set_leader(char *name, struct list_head *list,
1845 struct parse_events_state *parse_state)
1847 struct evsel *leader;
1849 if (list_empty(list)) {
1850 WARN_ONCE(true, "WARNING: failed to set leader: empty list");
1854 if (parse_events__set_leader_for_uncore_aliase(name, list, parse_state))
1857 leader = arch_evlist__leader(list);
1858 __perf_evlist__set_leader(list, &leader->core);
1859 leader->group_name = name ? strdup(name) : NULL;
1860 list_move(&leader->core.node, list);
1863 /* list_event is assumed to point to malloc'ed memory */
1864 void parse_events_update_lists(struct list_head *list_event,
1865 struct list_head *list_all)
1868 * Called for single event definition. Update the
1869 * 'all event' list, and reinit the 'single event'
1870 * list, for next event definition.
1872 list_splice_tail(list_event, list_all);
1876 struct event_modifier {
1893 static int get_event_modifier(struct event_modifier *mod, char *str,
1894 struct evsel *evsel)
1896 int eu = evsel ? evsel->core.attr.exclude_user : 0;
1897 int ek = evsel ? evsel->core.attr.exclude_kernel : 0;
1898 int eh = evsel ? evsel->core.attr.exclude_hv : 0;
1899 int eH = evsel ? evsel->core.attr.exclude_host : 0;
1900 int eG = evsel ? evsel->core.attr.exclude_guest : 0;
1901 int eI = evsel ? evsel->core.attr.exclude_idle : 0;
1902 int precise = evsel ? evsel->core.attr.precise_ip : 0;
1903 int precise_max = 0;
1904 int sample_read = 0;
1905 int pinned = evsel ? evsel->core.attr.pinned : 0;
1906 int exclusive = evsel ? evsel->core.attr.exclusive : 0;
1908 int exclude = eu | ek | eh;
1909 int exclude_GH = evsel ? evsel->exclude_GH : 0;
1911 int bpf_counter = 0;
1913 memset(mod, 0, sizeof(*mod));
1918 exclude = eu = ek = eh = 1;
1919 if (!exclude_GH && !perf_guest)
1922 } else if (*str == 'k') {
1924 exclude = eu = ek = eh = 1;
1926 } else if (*str == 'h') {
1928 exclude = eu = ek = eh = 1;
1930 } else if (*str == 'G') {
1932 exclude_GH = eG = eH = 1;
1934 } else if (*str == 'H') {
1936 exclude_GH = eG = eH = 1;
1938 } else if (*str == 'I') {
1940 } else if (*str == 'p') {
1942 /* use of precise requires exclude_guest */
1945 } else if (*str == 'P') {
1947 } else if (*str == 'S') {
1949 } else if (*str == 'D') {
1951 } else if (*str == 'e') {
1953 } else if (*str == 'W') {
1955 } else if (*str == 'b') {
1966 * 0 - SAMPLE_IP can have arbitrary skid
1967 * 1 - SAMPLE_IP must have constant skid
1968 * 2 - SAMPLE_IP requested to have 0 skid
1969 * 3 - SAMPLE_IP must have 0 skid
1971 * See also PERF_RECORD_MISC_EXACT_IP
1982 mod->precise = precise;
1983 mod->precise_max = precise_max;
1984 mod->exclude_GH = exclude_GH;
1985 mod->sample_read = sample_read;
1986 mod->pinned = pinned;
1988 mod->bpf_counter = bpf_counter;
1989 mod->exclusive = exclusive;
1995 * Basic modifier sanity check to validate it contains only one
1996 * instance of any modifier (apart from 'p') present.
1998 static int check_modifier(char *str)
2002 /* The sizeof includes 0 byte as well. */
2003 if (strlen(str) > (sizeof("ukhGHpppPSDIWeb") - 1))
2007 if (*p != 'p' && strchr(p + 1, *p))
2015 int parse_events__modifier_event(struct list_head *list, char *str, bool add)
2017 struct evsel *evsel;
2018 struct event_modifier mod;
2023 if (check_modifier(str))
2026 if (!add && get_event_modifier(&mod, str, NULL))
2029 __evlist__for_each_entry(list, evsel) {
2030 if (add && get_event_modifier(&mod, str, evsel))
2033 evsel->core.attr.exclude_user = mod.eu;
2034 evsel->core.attr.exclude_kernel = mod.ek;
2035 evsel->core.attr.exclude_hv = mod.eh;
2036 evsel->core.attr.precise_ip = mod.precise;
2037 evsel->core.attr.exclude_host = mod.eH;
2038 evsel->core.attr.exclude_guest = mod.eG;
2039 evsel->core.attr.exclude_idle = mod.eI;
2040 evsel->exclude_GH = mod.exclude_GH;
2041 evsel->sample_read = mod.sample_read;
2042 evsel->precise_max = mod.precise_max;
2043 evsel->weak_group = mod.weak;
2044 evsel->bpf_counter = mod.bpf_counter;
2046 if (evsel__is_group_leader(evsel)) {
2047 evsel->core.attr.pinned = mod.pinned;
2048 evsel->core.attr.exclusive = mod.exclusive;
2055 int parse_events_name(struct list_head *list, const char *name)
2057 struct evsel *evsel;
2059 __evlist__for_each_entry(list, evsel) {
2061 evsel->name = strdup(name);
2068 comp_pmu(const void *p1, const void *p2)
2070 struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1;
2071 struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2;
2073 return strcasecmp(pmu1->symbol, pmu2->symbol);
2076 static void perf_pmu__parse_cleanup(void)
2078 if (perf_pmu_events_list_num > 0) {
2079 struct perf_pmu_event_symbol *p;
2082 for (i = 0; i < perf_pmu_events_list_num; i++) {
2083 p = perf_pmu_events_list + i;
2086 zfree(&perf_pmu_events_list);
2087 perf_pmu_events_list_num = 0;
2091 #define SET_SYMBOL(str, stype) \
2100 * Read the pmu events list from sysfs
2101 * Save it into perf_pmu_events_list
2103 static void perf_pmu__parse_init(void)
2106 struct perf_pmu *pmu = NULL;
2107 struct perf_pmu_alias *alias;
2111 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
2112 list_for_each_entry(alias, &pmu->aliases, list) {
2113 char *tmp = strchr(alias->name, '-');
2118 tmp2 = strchr(tmp + 1, '-');
2129 perf_pmu_events_list_num = -1;
2132 perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len);
2133 if (!perf_pmu_events_list)
2135 perf_pmu_events_list_num = len;
2139 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
2140 list_for_each_entry(alias, &pmu->aliases, list) {
2141 struct perf_pmu_event_symbol *p = perf_pmu_events_list + len;
2142 char *tmp = strchr(alias->name, '-');
2146 tmp2 = strchr(tmp + 1, '-');
2148 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
2149 PMU_EVENT_SYMBOL_PREFIX);
2152 SET_SYMBOL(strndup(tmp, tmp2 - tmp), PMU_EVENT_SYMBOL_SUFFIX);
2154 SET_SYMBOL(strdup(++tmp2), PMU_EVENT_SYMBOL_SUFFIX2);
2157 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
2158 PMU_EVENT_SYMBOL_PREFIX);
2160 SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX);
2163 SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL);
2168 qsort(perf_pmu_events_list, len,
2169 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2173 perf_pmu__parse_cleanup();
2177 * This function injects special term in
2178 * perf_pmu_events_list so the test code
2179 * can check on this functionality.
2181 int perf_pmu__test_parse_init(void)
2183 struct perf_pmu_event_symbol *list, *tmp, symbols[] = {
2184 {(char *)"read", PMU_EVENT_SYMBOL},
2185 {(char *)"event", PMU_EVENT_SYMBOL_PREFIX},
2186 {(char *)"two", PMU_EVENT_SYMBOL_SUFFIX},
2187 {(char *)"hyphen", PMU_EVENT_SYMBOL_SUFFIX},
2188 {(char *)"hyph", PMU_EVENT_SYMBOL_SUFFIX2},
2192 tmp = list = malloc(sizeof(*list) * ARRAY_SIZE(symbols));
2196 for (i = 0; i < ARRAY_SIZE(symbols); i++, tmp++) {
2197 tmp->type = symbols[i].type;
2198 tmp->symbol = strdup(symbols[i].symbol);
2203 perf_pmu_events_list = list;
2204 perf_pmu_events_list_num = ARRAY_SIZE(symbols);
2206 qsort(perf_pmu_events_list, ARRAY_SIZE(symbols),
2207 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2211 for (j = 0, tmp = list; j < i; j++, tmp++)
2217 enum perf_pmu_event_symbol_type
2218 perf_pmu__parse_check(const char *name)
2220 struct perf_pmu_event_symbol p, *r;
2222 /* scan kernel pmu events from sysfs if needed */
2223 if (perf_pmu_events_list_num == 0)
2224 perf_pmu__parse_init();
2226 * name "cpu" could be prefix of cpu-cycles or cpu// events.
2227 * cpu-cycles has been handled by hardcode.
2228 * So it must be cpu// events, not kernel pmu event.
2230 if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu"))
2231 return PMU_EVENT_SYMBOL_ERR;
2233 p.symbol = strdup(name);
2234 r = bsearch(&p, perf_pmu_events_list,
2235 (size_t) perf_pmu_events_list_num,
2236 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2238 return r ? r->type : PMU_EVENT_SYMBOL_ERR;
2241 static int parse_events__scanner(const char *str,
2242 struct parse_events_state *parse_state)
2244 YY_BUFFER_STATE buffer;
2248 ret = parse_events_lex_init_extra(parse_state, &scanner);
2252 buffer = parse_events__scan_string(str, scanner);
2255 parse_events_debug = 1;
2256 parse_events_set_debug(1, scanner);
2258 ret = parse_events_parse(parse_state, scanner);
2260 parse_events__flush_buffer(buffer, scanner);
2261 parse_events__delete_buffer(buffer, scanner);
2262 parse_events_lex_destroy(scanner);
2267 * parse event config string, return a list of event terms.
2269 int parse_events_terms(struct list_head *terms, const char *str)
2271 struct parse_events_state parse_state = {
2273 .stoken = PE_START_TERMS,
2277 ret = parse_events__scanner(str, &parse_state);
2278 perf_pmu__parse_cleanup();
2281 list_splice(parse_state.terms, terms);
2282 zfree(&parse_state.terms);
2286 parse_events_terms__delete(parse_state.terms);
2290 static int parse_events__with_hybrid_pmu(struct parse_events_state *parse_state,
2291 const char *str, char *pmu_name,
2292 struct list_head *list)
2294 struct parse_events_state ps = {
2295 .list = LIST_HEAD_INIT(ps.list),
2296 .stoken = PE_START_EVENTS,
2297 .hybrid_pmu_name = pmu_name,
2298 .idx = parse_state->idx,
2302 ret = parse_events__scanner(str, &ps);
2303 perf_pmu__parse_cleanup();
2306 if (!list_empty(&ps.list)) {
2307 list_splice(&ps.list, list);
2308 parse_state->idx = ps.idx;
2317 int __parse_events(struct evlist *evlist, const char *str,
2318 struct parse_events_error *err, struct perf_pmu *fake_pmu)
2320 struct parse_events_state parse_state = {
2321 .list = LIST_HEAD_INIT(parse_state.list),
2322 .idx = evlist->core.nr_entries,
2325 .stoken = PE_START_EVENTS,
2326 .fake_pmu = fake_pmu,
2330 ret = parse_events__scanner(str, &parse_state);
2331 perf_pmu__parse_cleanup();
2333 if (!ret && list_empty(&parse_state.list)) {
2334 WARN_ONCE(true, "WARNING: event parser found nothing\n");
2339 * Add list to the evlist even with errors to allow callers to clean up.
2341 evlist__splice_list_tail(evlist, &parse_state.list);
2346 evlist->core.nr_groups += parse_state.nr_groups;
2347 last = evlist__last(evlist);
2348 last->cmdline_group_boundary = true;
2354 * There are 2 users - builtin-record and builtin-test objects.
2355 * Both call evlist__delete in case of error, so we dont
2361 void parse_events_error__init(struct parse_events_error *err)
2363 bzero(err, sizeof(*err));
2366 void parse_events_error__exit(struct parse_events_error *err)
2370 zfree(&err->first_str);
2371 zfree(&err->first_help);
2374 void parse_events_error__handle(struct parse_events_error *err, int idx,
2375 char *str, char *help)
2377 if (WARN(!str, "WARNING: failed to provide error string\n")) {
2381 switch (err->num_errors) {
2388 err->first_idx = err->idx;
2390 err->first_str = err->str;
2392 err->first_help = err->help;
2396 pr_debug("Multiple errors dropping message: %s (%s)\n",
2397 err->str, err->help);
2407 #define MAX_WIDTH 1000
2408 static int get_term_width(void)
2412 get_term_dimensions(&ws);
2413 return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
2416 static void __parse_events_error__print(int err_idx, const char *err_str,
2417 const char *err_help, const char *event)
2419 const char *str = "invalid or unsupported event: ";
2420 char _buf[MAX_WIDTH];
2421 char *buf = (char *) event;
2424 /* -2 for extra '' in the final fprintf */
2425 int width = get_term_width() - 2;
2426 int len_event = strlen(event);
2427 int len_str, max_len, cut = 0;
2430 * Maximum error index indent, we will cut
2431 * the event string if it's bigger.
2433 int max_err_idx = 13;
2436 * Let's be specific with the message when
2437 * we have the precise error.
2439 str = "event syntax error: ";
2440 len_str = strlen(str);
2441 max_len = width - len_str;
2445 /* We're cutting from the beginning. */
2446 if (err_idx > max_err_idx)
2447 cut = err_idx - max_err_idx;
2449 strncpy(buf, event + cut, max_len);
2451 /* Mark cut parts with '..' on both sides. */
2453 buf[0] = buf[1] = '.';
2455 if ((len_event - cut) > max_len) {
2456 buf[max_len - 1] = buf[max_len - 2] = '.';
2460 idx = len_str + err_idx - cut;
2463 fprintf(stderr, "%s'%s'\n", str, buf);
2465 fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err_str);
2467 fprintf(stderr, "\n%s\n", err_help);
2471 void parse_events_error__print(struct parse_events_error *err,
2474 if (!err->num_errors)
2477 __parse_events_error__print(err->idx, err->str, err->help, event);
2479 if (err->num_errors > 1) {
2480 fputs("\nInitial error:\n", stderr);
2481 __parse_events_error__print(err->first_idx, err->first_str,
2482 err->first_help, event);
2488 int parse_events_option(const struct option *opt, const char *str,
2489 int unset __maybe_unused)
2491 struct evlist *evlist = *(struct evlist **)opt->value;
2492 struct parse_events_error err;
2495 parse_events_error__init(&err);
2496 ret = parse_events(evlist, str, &err);
2499 parse_events_error__print(&err, str);
2500 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
2502 parse_events_error__exit(&err);
2507 int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset)
2509 struct evlist **evlistp = opt->value;
2512 if (*evlistp == NULL) {
2513 *evlistp = evlist__new();
2515 if (*evlistp == NULL) {
2516 fprintf(stderr, "Not enough memory to create evlist\n");
2521 ret = parse_events_option(opt, str, unset);
2523 evlist__delete(*evlistp);
2531 foreach_evsel_in_last_glob(struct evlist *evlist,
2532 int (*func)(struct evsel *evsel,
2536 struct evsel *last = NULL;
2540 * Don't return when list_empty, give func a chance to report
2541 * error when it found last == NULL.
2543 * So no need to WARN here, let *func do this.
2545 if (evlist->core.nr_entries > 0)
2546 last = evlist__last(evlist);
2549 err = (*func)(last, arg);
2555 if (last->core.node.prev == &evlist->core.entries)
2557 last = list_entry(last->core.node.prev, struct evsel, core.node);
2558 } while (!last->cmdline_group_boundary);
2563 static int set_filter(struct evsel *evsel, const void *arg)
2565 const char *str = arg;
2567 int nr_addr_filters = 0;
2568 struct perf_pmu *pmu = NULL;
2570 if (evsel == NULL) {
2572 "--filter option should follow a -e tracepoint or HW tracer option\n");
2576 if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) {
2577 if (evsel__append_tp_filter(evsel, str) < 0) {
2579 "not enough memory to hold filter string\n");
2586 while ((pmu = perf_pmu__scan(pmu)) != NULL)
2587 if (pmu->type == evsel->core.attr.type) {
2593 perf_pmu__scan_file(pmu, "nr_addr_filters",
2594 "%d", &nr_addr_filters);
2596 if (!nr_addr_filters) {
2598 "This CPU does not support address filtering\n");
2602 if (evsel__append_addr_filter(evsel, str) < 0) {
2604 "not enough memory to hold filter string\n");
2611 int parse_filter(const struct option *opt, const char *str,
2612 int unset __maybe_unused)
2614 struct evlist *evlist = *(struct evlist **)opt->value;
2616 return foreach_evsel_in_last_glob(evlist, set_filter,
2620 static int add_exclude_perf_filter(struct evsel *evsel,
2621 const void *arg __maybe_unused)
2623 char new_filter[64];
2625 if (evsel == NULL || evsel->core.attr.type != PERF_TYPE_TRACEPOINT) {
2627 "--exclude-perf option should follow a -e tracepoint option\n");
2631 snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
2633 if (evsel__append_tp_filter(evsel, new_filter) < 0) {
2635 "not enough memory to hold filter string\n");
2642 int exclude_perf(const struct option *opt,
2643 const char *arg __maybe_unused,
2644 int unset __maybe_unused)
2646 struct evlist *evlist = *(struct evlist **)opt->value;
2648 return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
2652 static const char * const event_type_descriptors[] = {
2656 "Hardware cache event",
2657 "Raw hardware event descriptor",
2658 "Hardware breakpoint",
2661 static int cmp_string(const void *a, const void *b)
2663 const char * const *as = a;
2664 const char * const *bs = b;
2666 return strcmp(*as, *bs);
2670 * Print the events from <debugfs_mount_point>/tracing/events
2673 void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
2676 DIR *sys_dir, *evt_dir;
2677 struct dirent *sys_dirent, *evt_dirent;
2678 char evt_path[MAXPATHLEN];
2680 char **evt_list = NULL;
2681 unsigned int evt_i = 0, evt_num = 0;
2682 bool evt_num_known = false;
2685 sys_dir = tracing_events__opendir();
2689 if (evt_num_known) {
2690 evt_list = zalloc(sizeof(char *) * evt_num);
2692 goto out_close_sys_dir;
2695 for_each_subsystem(sys_dir, sys_dirent) {
2696 if (subsys_glob != NULL &&
2697 !strglobmatch(sys_dirent->d_name, subsys_glob))
2700 dir_path = get_events_file(sys_dirent->d_name);
2703 evt_dir = opendir(dir_path);
2707 for_each_event(dir_path, evt_dir, evt_dirent) {
2708 if (event_glob != NULL &&
2709 !strglobmatch(evt_dirent->d_name, event_glob))
2712 if (!evt_num_known) {
2717 snprintf(evt_path, MAXPATHLEN, "%s:%s",
2718 sys_dirent->d_name, evt_dirent->d_name);
2720 evt_list[evt_i] = strdup(evt_path);
2721 if (evt_list[evt_i] == NULL) {
2722 put_events_file(dir_path);
2723 goto out_close_evt_dir;
2729 put_events_file(dir_path);
2733 if (!evt_num_known) {
2734 evt_num_known = true;
2737 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
2739 while (evt_i < evt_num) {
2741 printf("%s ", evt_list[evt_i++]);
2744 printf(" %-50s [%s]\n", evt_list[evt_i++],
2745 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
2747 if (evt_num && pager_in_use())
2752 for (evt_i = 0; evt_i < evt_num; evt_i++)
2753 zfree(&evt_list[evt_i]);
2762 printf("FATAL: not enough memory to print %s\n",
2763 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
2769 * Check whether event is in <debugfs_mount_point>/tracing/events
2772 int is_valid_tracepoint(const char *event_string)
2774 DIR *sys_dir, *evt_dir;
2775 struct dirent *sys_dirent, *evt_dirent;
2776 char evt_path[MAXPATHLEN];
2779 sys_dir = tracing_events__opendir();
2783 for_each_subsystem(sys_dir, sys_dirent) {
2784 dir_path = get_events_file(sys_dirent->d_name);
2787 evt_dir = opendir(dir_path);
2791 for_each_event(dir_path, evt_dir, evt_dirent) {
2792 snprintf(evt_path, MAXPATHLEN, "%s:%s",
2793 sys_dirent->d_name, evt_dirent->d_name);
2794 if (!strcmp(evt_path, event_string)) {
2802 put_events_file(dir_path);
2808 static bool is_event_supported(u8 type, u64 config)
2812 struct evsel *evsel;
2813 struct perf_event_attr attr = {
2818 struct perf_thread_map *tmap = thread_map__new_by_tid(0);
2823 evsel = evsel__new(&attr);
2825 open_return = evsel__open(evsel, NULL, tmap);
2826 ret = open_return >= 0;
2828 if (open_return == -EACCES) {
2830 * This happens if the paranoid value
2831 * /proc/sys/kernel/perf_event_paranoid is set to 2
2832 * Re-run with exclude_kernel set; we don't do that
2833 * by default as some ARM machines do not support it.
2836 evsel->core.attr.exclude_kernel = 1;
2837 ret = evsel__open(evsel, NULL, tmap) >= 0;
2839 evsel__delete(evsel);
2842 perf_thread_map__put(tmap);
2846 void print_sdt_events(const char *subsys_glob, const char *event_glob,
2849 struct probe_cache *pcache;
2850 struct probe_cache_entry *ent;
2851 struct strlist *bidlist, *sdtlist;
2852 struct strlist_config cfg = {.dont_dupstr = true};
2853 struct str_node *nd, *nd2;
2854 char *buf, *path, *ptr = NULL;
2855 bool show_detail = false;
2858 sdtlist = strlist__new(NULL, &cfg);
2860 pr_debug("Failed to allocate new strlist for SDT\n");
2863 bidlist = build_id_cache__list_all(true);
2865 pr_debug("Failed to get buildids: %d\n", errno);
2868 strlist__for_each_entry(nd, bidlist) {
2869 pcache = probe_cache__new(nd->s, NULL);
2872 list_for_each_entry(ent, &pcache->entries, node) {
2876 !strglobmatch(ent->pev.group, subsys_glob))
2879 !strglobmatch(ent->pev.event, event_glob))
2881 ret = asprintf(&buf, "%s:%s@%s", ent->pev.group,
2882 ent->pev.event, nd->s);
2884 strlist__add(sdtlist, buf);
2886 probe_cache__delete(pcache);
2888 strlist__delete(bidlist);
2890 strlist__for_each_entry(nd, sdtlist) {
2891 buf = strchr(nd->s, '@');
2895 printf("%s ", nd->s);
2898 nd2 = strlist__next(nd);
2900 ptr = strchr(nd2->s, '@');
2903 if (strcmp(nd->s, nd2->s) == 0)
2907 path = build_id_cache__origname(buf);
2908 ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf);
2910 printf(" %-50s [%s]\n", buf, "SDT event");
2915 printf(" %-50s [%s]\n", nd->s, "SDT event");
2917 if (strcmp(nd->s, nd2->s) != 0)
2918 show_detail = false;
2923 strlist__delete(sdtlist);
2926 int print_hwcache_events(const char *event_glob, bool name_only)
2928 unsigned int type, op, i, evt_i = 0, evt_num = 0, npmus = 0;
2929 char name[64], new_name[128];
2930 char **evt_list = NULL, **evt_pmus = NULL;
2931 bool evt_num_known = false;
2932 struct perf_pmu *pmu = NULL;
2934 if (perf_pmu__has_hybrid()) {
2935 npmus = perf_pmu__hybrid_pmu_num();
2936 evt_pmus = zalloc(sizeof(char *) * npmus);
2942 if (evt_num_known) {
2943 evt_list = zalloc(sizeof(char *) * evt_num);
2948 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
2949 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
2950 /* skip invalid cache type */
2951 if (!evsel__is_cache_op_valid(type, op))
2954 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
2955 unsigned int hybrid_supported = 0, j;
2958 __evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name));
2959 if (event_glob != NULL && !strglobmatch(name, event_glob))
2962 if (!perf_pmu__has_hybrid()) {
2963 if (!is_event_supported(PERF_TYPE_HW_CACHE,
2964 type | (op << 8) | (i << 16))) {
2968 perf_pmu__for_each_hybrid_pmu(pmu) {
2969 if (!evt_num_known) {
2974 supported = is_event_supported(
2976 type | (op << 8) | (i << 16) |
2977 ((__u64)pmu->type << PERF_PMU_TYPE_SHIFT));
2979 snprintf(new_name, sizeof(new_name), "%s/%s/",
2981 evt_pmus[hybrid_supported] = strdup(new_name);
2986 if (hybrid_supported == 0)
2990 if (!evt_num_known) {
2995 if ((hybrid_supported == 0) ||
2996 (hybrid_supported == npmus)) {
2997 evt_list[evt_i] = strdup(name);
2999 for (j = 0; j < npmus; j++)
3000 zfree(&evt_pmus[j]);
3003 for (j = 0; j < hybrid_supported; j++) {
3004 evt_list[evt_i++] = evt_pmus[j];
3010 if (evt_list[evt_i] == NULL)
3017 if (!evt_num_known) {
3018 evt_num_known = true;
3022 for (evt_i = 0; evt_i < evt_num; evt_i++) {
3023 if (!evt_list[evt_i])
3028 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
3030 while (evt_i < evt_num) {
3032 printf("%s ", evt_list[evt_i++]);
3035 printf(" %-50s [%s]\n", evt_list[evt_i++],
3036 event_type_descriptors[PERF_TYPE_HW_CACHE]);
3038 if (evt_num && pager_in_use())
3043 for (evt_i = 0; evt_i < evt_num; evt_i++)
3044 zfree(&evt_list[evt_i]);
3047 for (evt_i = 0; evt_i < npmus; evt_i++)
3048 zfree(&evt_pmus[evt_i]);
3053 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]);
3059 static void print_tool_event(const char *name, const char *event_glob,
3062 if (event_glob && !strglobmatch(name, event_glob))
3065 printf("%s ", name);
3067 printf(" %-50s [%s]\n", name, "Tool event");
3071 void print_tool_events(const char *event_glob, bool name_only)
3073 print_tool_event("duration_time", event_glob, name_only);
3078 void print_symbol_events(const char *event_glob, unsigned type,
3079 struct event_symbol *syms, unsigned max,
3082 unsigned int i, evt_i = 0, evt_num = 0;
3083 char name[MAX_NAME_LEN];
3084 char **evt_list = NULL;
3085 bool evt_num_known = false;
3088 if (evt_num_known) {
3089 evt_list = zalloc(sizeof(char *) * evt_num);
3095 for (i = 0; i < max; i++, syms++) {
3097 * New attr.config still not supported here, the latest
3098 * example was PERF_COUNT_SW_CGROUP_SWITCHES
3100 if (syms->symbol == NULL)
3103 if (event_glob != NULL && !(strglobmatch(syms->symbol, event_glob) ||
3104 (syms->alias && strglobmatch(syms->alias, event_glob))))
3107 if (!is_event_supported(type, i))
3110 if (!evt_num_known) {
3115 if (!name_only && strlen(syms->alias))
3116 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
3118 strlcpy(name, syms->symbol, MAX_NAME_LEN);
3120 evt_list[evt_i] = strdup(name);
3121 if (evt_list[evt_i] == NULL)
3126 if (!evt_num_known) {
3127 evt_num_known = true;
3130 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
3132 while (evt_i < evt_num) {
3134 printf("%s ", evt_list[evt_i++]);
3137 printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]);
3139 if (evt_num && pager_in_use())
3144 for (evt_i = 0; evt_i < evt_num; evt_i++)
3145 zfree(&evt_list[evt_i]);
3150 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]);
3156 * Print the help text for the event symbols:
3158 void print_events(const char *event_glob, bool name_only, bool quiet_flag,
3159 bool long_desc, bool details_flag, bool deprecated,
3160 const char *pmu_name)
3162 print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
3163 event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
3165 print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
3166 event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
3167 print_tool_events(event_glob, name_only);
3169 print_hwcache_events(event_glob, name_only);
3171 print_pmu_events(event_glob, name_only, quiet_flag, long_desc,
3172 details_flag, deprecated, pmu_name);
3174 if (event_glob != NULL)
3178 printf(" %-50s [%s]\n",
3180 event_type_descriptors[PERF_TYPE_RAW]);
3181 printf(" %-50s [%s]\n",
3182 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
3183 event_type_descriptors[PERF_TYPE_RAW]);
3185 printf(" (see 'man perf-list' on how to encode it)\n\n");
3187 printf(" %-50s [%s]\n",
3188 "mem:<addr>[/len][:access]",
3189 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
3194 print_tracepoint_events(NULL, NULL, name_only);
3196 print_sdt_events(NULL, NULL, name_only);
3198 metricgroup__print(true, true, NULL, name_only, details_flag,
3201 print_libpfm_events(name_only, long_desc);
3204 int parse_events__is_hardcoded_term(struct parse_events_term *term)
3206 return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
3209 static int new_term(struct parse_events_term **_term,
3210 struct parse_events_term *temp,
3213 struct parse_events_term *term;
3215 term = malloc(sizeof(*term));
3220 INIT_LIST_HEAD(&term->list);
3223 switch (term->type_val) {
3224 case PARSE_EVENTS__TERM_TYPE_NUM:
3225 term->val.num = num;
3227 case PARSE_EVENTS__TERM_TYPE_STR:
3228 term->val.str = str;
3239 int parse_events_term__num(struct parse_events_term **term,
3240 int type_term, char *config, u64 num,
3242 void *loc_term_, void *loc_val_)
3244 YYLTYPE *loc_term = loc_term_;
3245 YYLTYPE *loc_val = loc_val_;
3247 struct parse_events_term temp = {
3248 .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
3249 .type_term = type_term,
3250 .config = config ? : strdup(config_term_names[type_term]),
3251 .no_value = no_value,
3252 .err_term = loc_term ? loc_term->first_column : 0,
3253 .err_val = loc_val ? loc_val->first_column : 0,
3256 return new_term(term, &temp, NULL, num);
3259 int parse_events_term__str(struct parse_events_term **term,
3260 int type_term, char *config, char *str,
3261 void *loc_term_, void *loc_val_)
3263 YYLTYPE *loc_term = loc_term_;
3264 YYLTYPE *loc_val = loc_val_;
3266 struct parse_events_term temp = {
3267 .type_val = PARSE_EVENTS__TERM_TYPE_STR,
3268 .type_term = type_term,
3270 .err_term = loc_term ? loc_term->first_column : 0,
3271 .err_val = loc_val ? loc_val->first_column : 0,
3274 return new_term(term, &temp, str, 0);
3277 int parse_events_term__sym_hw(struct parse_events_term **term,
3278 char *config, unsigned idx)
3280 struct event_symbol *sym;
3282 struct parse_events_term temp = {
3283 .type_val = PARSE_EVENTS__TERM_TYPE_STR,
3284 .type_term = PARSE_EVENTS__TERM_TYPE_USER,
3289 temp.config = strdup("event");
3293 BUG_ON(idx >= PERF_COUNT_HW_MAX);
3294 sym = &event_symbols_hw[idx];
3296 str = strdup(sym->symbol);
3299 return new_term(term, &temp, str, 0);
3302 int parse_events_term__clone(struct parse_events_term **new,
3303 struct parse_events_term *term)
3306 struct parse_events_term temp = {
3307 .type_val = term->type_val,
3308 .type_term = term->type_term,
3310 .err_term = term->err_term,
3311 .err_val = term->err_val,
3315 temp.config = strdup(term->config);
3319 if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM)
3320 return new_term(new, &temp, NULL, term->val.num);
3322 str = strdup(term->val.str);
3325 return new_term(new, &temp, str, 0);
3328 void parse_events_term__delete(struct parse_events_term *term)
3330 if (term->array.nr_ranges)
3331 zfree(&term->array.ranges);
3333 if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM)
3334 zfree(&term->val.str);
3336 zfree(&term->config);
3340 int parse_events_copy_term_list(struct list_head *old,
3341 struct list_head **new)
3343 struct parse_events_term *term, *n;
3351 *new = malloc(sizeof(struct list_head));
3354 INIT_LIST_HEAD(*new);
3356 list_for_each_entry (term, old, list) {
3357 ret = parse_events_term__clone(&n, term);
3360 list_add_tail(&n->list, *new);
3365 void parse_events_terms__purge(struct list_head *terms)
3367 struct parse_events_term *term, *h;
3369 list_for_each_entry_safe(term, h, terms, list) {
3370 list_del_init(&term->list);
3371 parse_events_term__delete(term);
3375 void parse_events_terms__delete(struct list_head *terms)
3379 parse_events_terms__purge(terms);
3383 void parse_events__clear_array(struct parse_events_array *a)
3388 void parse_events_evlist_error(struct parse_events_state *parse_state,
3389 int idx, const char *str)
3391 if (!parse_state->error)
3394 parse_events_error__handle(parse_state->error, idx, strdup(str), NULL);
3397 static void config_terms_list(char *buf, size_t buf_sz)
3403 for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) {
3404 const char *name = config_term_names[i];
3406 if (!config_term_avail(i, NULL))
3413 if (strlen(buf) + strlen(name) + 2 >= buf_sz)
3425 * Return string contains valid config terms of an event.
3426 * @additional_terms: For terms such as PMU sysfs terms.
3428 char *parse_events_formats_error_string(char *additional_terms)
3431 /* "no-overwrite" is the longest name */
3432 char static_terms[__PARSE_EVENTS__TERM_TYPE_NR *
3433 (sizeof("no-overwrite") - 1)];
3435 config_terms_list(static_terms, sizeof(static_terms));
3437 if (additional_terms) {
3438 if (asprintf(&str, "valid terms: %s,%s",
3439 additional_terms, static_terms) < 0)
3442 if (asprintf(&str, "valid terms: %s", static_terms) < 0)
3451 struct evsel *parse_events__add_event_hybrid(struct list_head *list, int *idx,
3452 struct perf_event_attr *attr,
3454 const char *metric_id,
3455 struct perf_pmu *pmu,
3456 struct list_head *config_terms)
3458 return __add_event(list, idx, attr, /*init_attr=*/true, name, metric_id,
3459 pmu, config_terms, /*auto_merge_stats=*/false,