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 struct event_symbol event_symbols_tool[PERF_TOOL_MAX] = {
158 [PERF_TOOL_DURATION_TIME] = {
159 .symbol = "duration_time",
162 [PERF_TOOL_USER_TIME] = {
163 .symbol = "user_time",
166 [PERF_TOOL_SYSTEM_TIME] = {
167 .symbol = "system_time",
172 #define __PERF_EVENT_FIELD(config, name) \
173 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
175 #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
176 #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
177 #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
178 #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
180 #define for_each_subsystem(sys_dir, sys_dirent) \
181 while ((sys_dirent = readdir(sys_dir)) != NULL) \
182 if (sys_dirent->d_type == DT_DIR && \
183 (strcmp(sys_dirent->d_name, ".")) && \
184 (strcmp(sys_dirent->d_name, "..")))
186 static int tp_event_has_id(const char *dir_path, struct dirent *evt_dir)
188 char evt_path[MAXPATHLEN];
191 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, evt_dir->d_name);
192 fd = open(evt_path, O_RDONLY);
200 #define for_each_event(dir_path, evt_dir, evt_dirent) \
201 while ((evt_dirent = readdir(evt_dir)) != NULL) \
202 if (evt_dirent->d_type == DT_DIR && \
203 (strcmp(evt_dirent->d_name, ".")) && \
204 (strcmp(evt_dirent->d_name, "..")) && \
205 (!tp_event_has_id(dir_path, evt_dirent)))
207 #define MAX_EVENT_LENGTH 512
209 struct tracepoint_path *tracepoint_id_to_path(u64 config)
211 struct tracepoint_path *path = NULL;
212 DIR *sys_dir, *evt_dir;
213 struct dirent *sys_dirent, *evt_dirent;
217 char evt_path[MAXPATHLEN];
220 sys_dir = tracing_events__opendir();
224 for_each_subsystem(sys_dir, sys_dirent) {
225 dir_path = get_events_file(sys_dirent->d_name);
228 evt_dir = opendir(dir_path);
232 for_each_event(dir_path, evt_dir, evt_dirent) {
234 scnprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
236 fd = open(evt_path, O_RDONLY);
239 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
246 put_events_file(dir_path);
249 path = zalloc(sizeof(*path));
252 if (asprintf(&path->system, "%.*s", MAX_EVENT_LENGTH, sys_dirent->d_name) < 0) {
256 if (asprintf(&path->name, "%.*s", MAX_EVENT_LENGTH, evt_dirent->d_name) < 0) {
257 zfree(&path->system);
266 put_events_file(dir_path);
273 struct tracepoint_path *tracepoint_name_to_path(const char *name)
275 struct tracepoint_path *path = zalloc(sizeof(*path));
276 char *str = strchr(name, ':');
278 if (path == NULL || str == NULL) {
283 path->system = strndup(name, str - name);
284 path->name = strdup(str+1);
286 if (path->system == NULL || path->name == NULL) {
287 zfree(&path->system);
295 const char *event_type(int type)
298 case PERF_TYPE_HARDWARE:
301 case PERF_TYPE_SOFTWARE:
304 case PERF_TYPE_TRACEPOINT:
307 case PERF_TYPE_HW_CACHE:
308 return "hardware-cache";
317 static char *get_config_str(struct list_head *head_terms, int type_term)
319 struct parse_events_term *term;
324 list_for_each_entry(term, head_terms, list)
325 if (term->type_term == type_term)
326 return term->val.str;
331 static char *get_config_metric_id(struct list_head *head_terms)
333 return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_METRIC_ID);
336 static char *get_config_name(struct list_head *head_terms)
338 return get_config_str(head_terms, PARSE_EVENTS__TERM_TYPE_NAME);
341 static struct evsel *
342 __add_event(struct list_head *list, int *idx,
343 struct perf_event_attr *attr,
345 const char *name, const char *metric_id, struct perf_pmu *pmu,
346 struct list_head *config_terms, bool auto_merge_stats,
347 const char *cpu_list)
350 struct perf_cpu_map *cpus = pmu ? perf_cpu_map__get(pmu->cpus) :
351 cpu_list ? perf_cpu_map__new(cpu_list) : NULL;
353 if (pmu && attr->type == PERF_TYPE_RAW)
354 perf_pmu__warn_invalid_config(pmu, attr->config, name);
357 event_attr_init(attr);
359 evsel = evsel__new_idx(attr, *idx);
361 perf_cpu_map__put(cpus);
366 evsel->core.cpus = cpus;
367 evsel->core.own_cpus = perf_cpu_map__get(cpus);
368 evsel->core.requires_cpu = pmu ? pmu->is_uncore : false;
369 evsel->auto_merge_stats = auto_merge_stats;
372 evsel->name = strdup(name);
375 evsel->metric_id = strdup(metric_id);
378 list_splice_init(config_terms, &evsel->config_terms);
381 list_add_tail(&evsel->core.node, list);
386 struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr,
387 const char *name, const char *metric_id,
388 struct perf_pmu *pmu)
390 return __add_event(/*list=*/NULL, &idx, attr, /*init_attr=*/false, name,
391 metric_id, pmu, /*config_terms=*/NULL,
392 /*auto_merge_stats=*/false, /*cpu_list=*/NULL);
395 static int add_event(struct list_head *list, int *idx,
396 struct perf_event_attr *attr, const char *name,
397 const char *metric_id, struct list_head *config_terms)
399 return __add_event(list, idx, attr, /*init_attr*/true, name, metric_id,
400 /*pmu=*/NULL, config_terms,
401 /*auto_merge_stats=*/false, /*cpu_list=*/NULL) ? 0 : -ENOMEM;
404 static int add_event_tool(struct list_head *list, int *idx,
405 enum perf_tool_event tool_event)
408 struct perf_event_attr attr = {
409 .type = PERF_TYPE_SOFTWARE,
410 .config = PERF_COUNT_SW_DUMMY,
413 evsel = __add_event(list, idx, &attr, /*init_attr=*/true, /*name=*/NULL,
414 /*metric_id=*/NULL, /*pmu=*/NULL,
415 /*config_terms=*/NULL, /*auto_merge_stats=*/false,
419 evsel->tool_event = tool_event;
420 if (tool_event == PERF_TOOL_DURATION_TIME
421 || tool_event == PERF_TOOL_USER_TIME
422 || tool_event == PERF_TOOL_SYSTEM_TIME) {
423 free((char *)evsel->unit);
424 evsel->unit = strdup("ns");
429 static int parse_aliases(char *str, const char *const names[][EVSEL__MAX_ALIASES], int size)
434 for (i = 0; i < size; i++) {
435 for (j = 0; j < EVSEL__MAX_ALIASES && names[i][j]; j++) {
436 n = strlen(names[i][j]);
437 if (n > longest && !strncasecmp(str, names[i][j], n))
447 typedef int config_term_func_t(struct perf_event_attr *attr,
448 struct parse_events_term *term,
449 struct parse_events_error *err);
450 static int config_term_common(struct perf_event_attr *attr,
451 struct parse_events_term *term,
452 struct parse_events_error *err);
453 static int config_attr(struct perf_event_attr *attr,
454 struct list_head *head,
455 struct parse_events_error *err,
456 config_term_func_t config_term);
458 int parse_events_add_cache(struct list_head *list, int *idx,
459 char *type, char *op_result1, char *op_result2,
460 struct parse_events_error *err,
461 struct list_head *head_config,
462 struct parse_events_state *parse_state)
464 struct perf_event_attr attr;
465 LIST_HEAD(config_terms);
466 char name[MAX_NAME_LEN];
467 const char *config_name, *metric_id;
468 int cache_type = -1, cache_op = -1, cache_result = -1;
469 char *op_result[2] = { op_result1, op_result2 };
474 * No fallback - if we cannot get a clear cache type
477 cache_type = parse_aliases(type, evsel__hw_cache, PERF_COUNT_HW_CACHE_MAX);
478 if (cache_type == -1)
481 config_name = get_config_name(head_config);
482 n = snprintf(name, MAX_NAME_LEN, "%s", type);
484 for (i = 0; (i < 2) && (op_result[i]); i++) {
485 char *str = op_result[i];
487 n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str);
489 if (cache_op == -1) {
490 cache_op = parse_aliases(str, evsel__hw_cache_op,
491 PERF_COUNT_HW_CACHE_OP_MAX);
493 if (!evsel__is_cache_op_valid(cache_type, cache_op))
499 if (cache_result == -1) {
500 cache_result = parse_aliases(str, evsel__hw_cache_result,
501 PERF_COUNT_HW_CACHE_RESULT_MAX);
502 if (cache_result >= 0)
508 * Fall back to reads:
511 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
514 * Fall back to accesses:
516 if (cache_result == -1)
517 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
519 memset(&attr, 0, sizeof(attr));
520 attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
521 attr.type = PERF_TYPE_HW_CACHE;
524 if (config_attr(&attr, head_config, err,
528 if (get_config_terms(head_config, &config_terms))
532 metric_id = get_config_metric_id(head_config);
533 ret = parse_events__add_cache_hybrid(list, idx, &attr,
534 config_name ? : name,
537 &hybrid, parse_state);
541 ret = add_event(list, idx, &attr, config_name ? : name, metric_id,
544 free_config_terms(&config_terms);
548 static void tracepoint_error(struct parse_events_error *e, int err,
549 const char *sys, const char *name)
558 * We get error directly from syscall errno ( > 0),
559 * or from encoded pointer's error ( < 0).
565 str = "can't access trace events";
568 str = "unknown tracepoint";
571 str = "failed to add tracepoint";
575 tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name);
576 parse_events_error__handle(e, 0, strdup(str), strdup(help));
579 static int add_tracepoint(struct list_head *list, int *idx,
580 const char *sys_name, const char *evt_name,
581 struct parse_events_error *err,
582 struct list_head *head_config)
584 struct evsel *evsel = evsel__newtp_idx(sys_name, evt_name, (*idx)++);
587 tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name);
588 return PTR_ERR(evsel);
592 LIST_HEAD(config_terms);
594 if (get_config_terms(head_config, &config_terms))
596 list_splice(&config_terms, &evsel->config_terms);
599 list_add_tail(&evsel->core.node, list);
603 static int add_tracepoint_multi_event(struct list_head *list, int *idx,
604 const char *sys_name, const char *evt_name,
605 struct parse_events_error *err,
606 struct list_head *head_config)
609 struct dirent *evt_ent;
611 int ret = 0, found = 0;
613 evt_path = get_events_file(sys_name);
615 tracepoint_error(err, errno, sys_name, evt_name);
618 evt_dir = opendir(evt_path);
620 put_events_file(evt_path);
621 tracepoint_error(err, errno, sys_name, evt_name);
625 while (!ret && (evt_ent = readdir(evt_dir))) {
626 if (!strcmp(evt_ent->d_name, ".")
627 || !strcmp(evt_ent->d_name, "..")
628 || !strcmp(evt_ent->d_name, "enable")
629 || !strcmp(evt_ent->d_name, "filter"))
632 if (!strglobmatch(evt_ent->d_name, evt_name))
637 ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name,
642 tracepoint_error(err, ENOENT, sys_name, evt_name);
646 put_events_file(evt_path);
651 static int add_tracepoint_event(struct list_head *list, int *idx,
652 const char *sys_name, const char *evt_name,
653 struct parse_events_error *err,
654 struct list_head *head_config)
656 return strpbrk(evt_name, "*?") ?
657 add_tracepoint_multi_event(list, idx, sys_name, evt_name,
659 add_tracepoint(list, idx, sys_name, evt_name,
663 static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
664 const char *sys_name, const char *evt_name,
665 struct parse_events_error *err,
666 struct list_head *head_config)
668 struct dirent *events_ent;
672 events_dir = tracing_events__opendir();
674 tracepoint_error(err, errno, sys_name, evt_name);
678 while (!ret && (events_ent = readdir(events_dir))) {
679 if (!strcmp(events_ent->d_name, ".")
680 || !strcmp(events_ent->d_name, "..")
681 || !strcmp(events_ent->d_name, "enable")
682 || !strcmp(events_ent->d_name, "header_event")
683 || !strcmp(events_ent->d_name, "header_page"))
686 if (!strglobmatch(events_ent->d_name, sys_name))
689 ret = add_tracepoint_event(list, idx, events_ent->d_name,
690 evt_name, err, head_config);
693 closedir(events_dir);
697 #ifdef HAVE_LIBBPF_SUPPORT
698 struct __add_bpf_event_param {
699 struct parse_events_state *parse_state;
700 struct list_head *list;
701 struct list_head *head_config;
704 static int add_bpf_event(const char *group, const char *event, int fd, struct bpf_object *obj,
707 LIST_HEAD(new_evsels);
708 struct __add_bpf_event_param *param = _param;
709 struct parse_events_state *parse_state = param->parse_state;
710 struct list_head *list = param->list;
714 * Check if we should add the event, i.e. if it is a TP but starts with a '!',
715 * then don't add the tracepoint, this will be used for something else, like
716 * adding to a BPF_MAP_TYPE_PROG_ARRAY.
718 * See tools/perf/examples/bpf/augmented_raw_syscalls.c
723 pr_debug("add bpf event %s:%s and attach bpf program %d\n",
726 err = parse_events_add_tracepoint(&new_evsels, &parse_state->idx, group,
727 event, parse_state->error,
730 struct evsel *evsel, *tmp;
732 pr_debug("Failed to add BPF event %s:%s\n",
734 list_for_each_entry_safe(evsel, tmp, &new_evsels, core.node) {
735 list_del_init(&evsel->core.node);
736 evsel__delete(evsel);
740 pr_debug("adding %s:%s\n", group, event);
742 list_for_each_entry(pos, &new_evsels, core.node) {
743 pr_debug("adding %s:%s to %p\n",
748 list_splice(&new_evsels, list);
752 int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
753 struct list_head *list,
754 struct bpf_object *obj,
755 struct list_head *head_config)
759 struct __add_bpf_event_param param = {parse_state, list, head_config};
760 static bool registered_unprobe_atexit = false;
762 if (IS_ERR(obj) || !obj) {
763 snprintf(errbuf, sizeof(errbuf),
764 "Internal error: load bpf obj with NULL");
770 * Register atexit handler before calling bpf__probe() so
771 * bpf__probe() don't need to unprobe probe points its already
772 * created when failure.
774 if (!registered_unprobe_atexit) {
776 registered_unprobe_atexit = true;
779 err = bpf__probe(obj);
781 bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf));
785 err = bpf__load(obj);
787 bpf__strerror_load(obj, err, errbuf, sizeof(errbuf));
791 err = bpf__foreach_event(obj, add_bpf_event, ¶m);
793 snprintf(errbuf, sizeof(errbuf),
794 "Attach events in BPF object failed");
800 parse_events_error__handle(parse_state->error, 0,
801 strdup(errbuf), strdup("(add -v to see detail)"));
806 parse_events_config_bpf(struct parse_events_state *parse_state,
807 struct bpf_object *obj,
808 struct list_head *head_config)
810 struct parse_events_term *term;
813 if (!head_config || list_empty(head_config))
816 list_for_each_entry(term, head_config, list) {
819 if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) {
820 parse_events_error__handle(parse_state->error, term->err_term,
821 strdup("Invalid config term for BPF object"),
826 err = bpf__config_obj(obj, term, parse_state->evlist, &error_pos);
831 bpf__strerror_config_obj(obj, term, parse_state->evlist,
832 &error_pos, err, errbuf,
835 if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE)
838 idx = term->err_term + error_pos;
840 parse_events_error__handle(parse_state->error, idx,
843 "Hint:\tValid config terms:\n"
844 " \tmap:[<arraymap>].value<indices>=[value]\n"
845 " \tmap:[<eventmap>].event<indices>=[event]\n"
847 " \twhere <indices> is something like [0,3...5] or [all]\n"
848 " \t(add -v to see detail)"));
856 * Split config terms:
857 * perf record -e bpf.c/call-graph=fp,map:array.value[0]=1/ ...
858 * 'call-graph=fp' is 'evt config', should be applied to each
860 * 'map:array.value[0]=1' is 'obj config', should be processed
861 * with parse_events_config_bpf.
863 * Move object config terms from the first list to obj_head_config.
866 split_bpf_config_terms(struct list_head *evt_head_config,
867 struct list_head *obj_head_config)
869 struct parse_events_term *term, *temp;
872 * Currently, all possible user config term
873 * belong to bpf object. parse_events__is_hardcoded_term()
874 * happens to be a good flag.
876 * See parse_events_config_bpf() and
877 * config_term_tracepoint().
879 list_for_each_entry_safe(term, temp, evt_head_config, list)
880 if (!parse_events__is_hardcoded_term(term))
881 list_move_tail(&term->list, obj_head_config);
884 int parse_events_load_bpf(struct parse_events_state *parse_state,
885 struct list_head *list,
888 struct list_head *head_config)
891 struct bpf_object *obj;
892 LIST_HEAD(obj_head_config);
895 split_bpf_config_terms(head_config, &obj_head_config);
897 obj = bpf__prepare_load(bpf_file_name, source);
904 snprintf(errbuf, sizeof(errbuf),
905 "BPF support is not compiled");
907 bpf__strerror_prepare_load(bpf_file_name,
912 parse_events_error__handle(parse_state->error, 0,
913 strdup(errbuf), strdup("(add -v to see detail)"));
917 err = parse_events_load_bpf_obj(parse_state, list, obj, head_config);
920 err = parse_events_config_bpf(parse_state, obj, &obj_head_config);
923 * Caller doesn't know anything about obj_head_config,
924 * so combine them together again before returning.
927 list_splice_tail(&obj_head_config, head_config);
930 #else // HAVE_LIBBPF_SUPPORT
931 int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
932 struct list_head *list __maybe_unused,
933 struct bpf_object *obj __maybe_unused,
934 struct list_head *head_config __maybe_unused)
936 parse_events_error__handle(parse_state->error, 0,
937 strdup("BPF support is not compiled"),
938 strdup("Make sure libbpf-devel is available at build time."));
942 int parse_events_load_bpf(struct parse_events_state *parse_state,
943 struct list_head *list __maybe_unused,
944 char *bpf_file_name __maybe_unused,
945 bool source __maybe_unused,
946 struct list_head *head_config __maybe_unused)
948 parse_events_error__handle(parse_state->error, 0,
949 strdup("BPF support is not compiled"),
950 strdup("Make sure libbpf-devel is available at build time."));
953 #endif // HAVE_LIBBPF_SUPPORT
956 parse_breakpoint_type(const char *type, struct perf_event_attr *attr)
960 for (i = 0; i < 3; i++) {
961 if (!type || !type[i])
964 #define CHECK_SET_TYPE(bit) \
966 if (attr->bp_type & bit) \
969 attr->bp_type |= bit; \
974 CHECK_SET_TYPE(HW_BREAKPOINT_R);
977 CHECK_SET_TYPE(HW_BREAKPOINT_W);
980 CHECK_SET_TYPE(HW_BREAKPOINT_X);
987 #undef CHECK_SET_TYPE
989 if (!attr->bp_type) /* Default */
990 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
995 int parse_events_add_breakpoint(struct list_head *list, int *idx,
996 u64 addr, char *type, u64 len)
998 struct perf_event_attr attr;
1000 memset(&attr, 0, sizeof(attr));
1001 attr.bp_addr = addr;
1003 if (parse_breakpoint_type(type, &attr))
1006 /* Provide some defaults if len is not specified */
1008 if (attr.bp_type == HW_BREAKPOINT_X)
1011 len = HW_BREAKPOINT_LEN_4;
1016 attr.type = PERF_TYPE_BREAKPOINT;
1017 attr.sample_period = 1;
1019 return add_event(list, idx, &attr, /*name=*/NULL, /*mertic_id=*/NULL,
1020 /*config_terms=*/NULL);
1023 static int check_type_val(struct parse_events_term *term,
1024 struct parse_events_error *err,
1027 if (type == term->type_val)
1031 parse_events_error__handle(err, term->err_val,
1032 type == PARSE_EVENTS__TERM_TYPE_NUM
1033 ? strdup("expected numeric value")
1034 : strdup("expected string value"),
1041 * Update according to parse-events.l
1043 static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = {
1044 [PARSE_EVENTS__TERM_TYPE_USER] = "<sysfs term>",
1045 [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config",
1046 [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1",
1047 [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2",
1048 [PARSE_EVENTS__TERM_TYPE_NAME] = "name",
1049 [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period",
1050 [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq",
1051 [PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE] = "branch_type",
1052 [PARSE_EVENTS__TERM_TYPE_TIME] = "time",
1053 [PARSE_EVENTS__TERM_TYPE_CALLGRAPH] = "call-graph",
1054 [PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size",
1055 [PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit",
1056 [PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit",
1057 [PARSE_EVENTS__TERM_TYPE_MAX_STACK] = "max-stack",
1058 [PARSE_EVENTS__TERM_TYPE_MAX_EVENTS] = "nr",
1059 [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite",
1060 [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite",
1061 [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config",
1062 [PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore",
1063 [PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT] = "aux-output",
1064 [PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE] = "aux-sample-size",
1065 [PARSE_EVENTS__TERM_TYPE_METRIC_ID] = "metric-id",
1068 static bool config_term_shrinked;
1071 config_term_avail(int term_type, struct parse_events_error *err)
1075 if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) {
1076 parse_events_error__handle(err, -1,
1077 strdup("Invalid term_type"), NULL);
1080 if (!config_term_shrinked)
1083 switch (term_type) {
1084 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1085 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
1086 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
1087 case PARSE_EVENTS__TERM_TYPE_NAME:
1088 case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
1089 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1090 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1096 /* term_type is validated so indexing is safe */
1097 if (asprintf(&err_str, "'%s' is not usable in 'perf stat'",
1098 config_term_names[term_type]) >= 0)
1099 parse_events_error__handle(err, -1, err_str, NULL);
1104 void parse_events__shrink_config_terms(void)
1106 config_term_shrinked = true;
1109 static int config_term_common(struct perf_event_attr *attr,
1110 struct parse_events_term *term,
1111 struct parse_events_error *err)
1113 #define CHECK_TYPE_VAL(type) \
1115 if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \
1119 switch (term->type_term) {
1120 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1121 CHECK_TYPE_VAL(NUM);
1122 attr->config = term->val.num;
1124 case PARSE_EVENTS__TERM_TYPE_CONFIG1:
1125 CHECK_TYPE_VAL(NUM);
1126 attr->config1 = term->val.num;
1128 case PARSE_EVENTS__TERM_TYPE_CONFIG2:
1129 CHECK_TYPE_VAL(NUM);
1130 attr->config2 = term->val.num;
1132 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1133 CHECK_TYPE_VAL(NUM);
1135 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
1136 CHECK_TYPE_VAL(NUM);
1138 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
1139 CHECK_TYPE_VAL(STR);
1140 if (strcmp(term->val.str, "no") &&
1141 parse_branch_str(term->val.str,
1142 &attr->branch_sample_type)) {
1143 parse_events_error__handle(err, term->err_val,
1144 strdup("invalid branch sample type"),
1149 case PARSE_EVENTS__TERM_TYPE_TIME:
1150 CHECK_TYPE_VAL(NUM);
1151 if (term->val.num > 1) {
1152 parse_events_error__handle(err, term->err_val,
1153 strdup("expected 0 or 1"),
1158 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1159 CHECK_TYPE_VAL(STR);
1161 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1162 CHECK_TYPE_VAL(NUM);
1164 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1165 CHECK_TYPE_VAL(NUM);
1167 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1168 CHECK_TYPE_VAL(NUM);
1170 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1171 CHECK_TYPE_VAL(NUM);
1173 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1174 CHECK_TYPE_VAL(NUM);
1176 case PARSE_EVENTS__TERM_TYPE_NAME:
1177 CHECK_TYPE_VAL(STR);
1179 case PARSE_EVENTS__TERM_TYPE_METRIC_ID:
1180 CHECK_TYPE_VAL(STR);
1182 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1183 CHECK_TYPE_VAL(NUM);
1185 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1186 CHECK_TYPE_VAL(NUM);
1188 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1189 CHECK_TYPE_VAL(NUM);
1190 if ((unsigned int)term->val.num > 1) {
1191 parse_events_error__handle(err, term->err_val,
1192 strdup("expected 0 or 1"),
1197 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1198 CHECK_TYPE_VAL(NUM);
1200 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1201 CHECK_TYPE_VAL(NUM);
1202 if (term->val.num > UINT_MAX) {
1203 parse_events_error__handle(err, term->err_val,
1210 parse_events_error__handle(err, term->err_term,
1211 strdup("unknown term"),
1212 parse_events_formats_error_string(NULL));
1217 * Check term availability after basic checking so
1218 * PARSE_EVENTS__TERM_TYPE_USER can be found and filtered.
1220 * If check availability at the entry of this function,
1221 * user will see "'<sysfs term>' is not usable in 'perf stat'"
1222 * if an invalid config term is provided for legacy events
1223 * (for example, instructions/badterm/...), which is confusing.
1225 if (!config_term_avail(term->type_term, err))
1228 #undef CHECK_TYPE_VAL
1231 static int config_term_pmu(struct perf_event_attr *attr,
1232 struct parse_events_term *term,
1233 struct parse_events_error *err)
1235 if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER ||
1236 term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG)
1238 * Always succeed for sysfs terms, as we dont know
1239 * at this point what type they need to have.
1243 return config_term_common(attr, term, err);
1246 static int config_term_tracepoint(struct perf_event_attr *attr,
1247 struct parse_events_term *term,
1248 struct parse_events_error *err)
1250 switch (term->type_term) {
1251 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1252 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1253 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1254 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1255 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1256 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1257 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1258 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1259 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1260 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1261 return config_term_common(attr, term, err);
1264 parse_events_error__handle(err, term->err_term,
1265 strdup("unknown term"),
1266 strdup("valid terms: call-graph,stack-size\n"));
1274 static int config_attr(struct perf_event_attr *attr,
1275 struct list_head *head,
1276 struct parse_events_error *err,
1277 config_term_func_t config_term)
1279 struct parse_events_term *term;
1281 list_for_each_entry(term, head, list)
1282 if (config_term(attr, term, err))
1288 static int get_config_terms(struct list_head *head_config,
1289 struct list_head *head_terms __maybe_unused)
1291 #define ADD_CONFIG_TERM(__type, __weak) \
1292 struct evsel_config_term *__t; \
1294 __t = zalloc(sizeof(*__t)); \
1298 INIT_LIST_HEAD(&__t->list); \
1299 __t->type = EVSEL__CONFIG_TERM_ ## __type; \
1300 __t->weak = __weak; \
1301 list_add_tail(&__t->list, head_terms)
1303 #define ADD_CONFIG_TERM_VAL(__type, __name, __val, __weak) \
1305 ADD_CONFIG_TERM(__type, __weak); \
1306 __t->val.__name = __val; \
1309 #define ADD_CONFIG_TERM_STR(__type, __val, __weak) \
1311 ADD_CONFIG_TERM(__type, __weak); \
1312 __t->val.str = strdup(__val); \
1313 if (!__t->val.str) { \
1317 __t->free_str = true; \
1320 struct parse_events_term *term;
1322 list_for_each_entry(term, head_config, list) {
1323 switch (term->type_term) {
1324 case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
1325 ADD_CONFIG_TERM_VAL(PERIOD, period, term->val.num, term->weak);
1327 case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
1328 ADD_CONFIG_TERM_VAL(FREQ, freq, term->val.num, term->weak);
1330 case PARSE_EVENTS__TERM_TYPE_TIME:
1331 ADD_CONFIG_TERM_VAL(TIME, time, term->val.num, term->weak);
1333 case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
1334 ADD_CONFIG_TERM_STR(CALLGRAPH, term->val.str, term->weak);
1336 case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
1337 ADD_CONFIG_TERM_STR(BRANCH, term->val.str, term->weak);
1339 case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
1340 ADD_CONFIG_TERM_VAL(STACK_USER, stack_user,
1341 term->val.num, term->weak);
1343 case PARSE_EVENTS__TERM_TYPE_INHERIT:
1344 ADD_CONFIG_TERM_VAL(INHERIT, inherit,
1345 term->val.num ? 1 : 0, term->weak);
1347 case PARSE_EVENTS__TERM_TYPE_NOINHERIT:
1348 ADD_CONFIG_TERM_VAL(INHERIT, inherit,
1349 term->val.num ? 0 : 1, term->weak);
1351 case PARSE_EVENTS__TERM_TYPE_MAX_STACK:
1352 ADD_CONFIG_TERM_VAL(MAX_STACK, max_stack,
1353 term->val.num, term->weak);
1355 case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS:
1356 ADD_CONFIG_TERM_VAL(MAX_EVENTS, max_events,
1357 term->val.num, term->weak);
1359 case PARSE_EVENTS__TERM_TYPE_OVERWRITE:
1360 ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite,
1361 term->val.num ? 1 : 0, term->weak);
1363 case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE:
1364 ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite,
1365 term->val.num ? 0 : 1, term->weak);
1367 case PARSE_EVENTS__TERM_TYPE_DRV_CFG:
1368 ADD_CONFIG_TERM_STR(DRV_CFG, term->val.str, term->weak);
1370 case PARSE_EVENTS__TERM_TYPE_PERCORE:
1371 ADD_CONFIG_TERM_VAL(PERCORE, percore,
1372 term->val.num ? true : false, term->weak);
1374 case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT:
1375 ADD_CONFIG_TERM_VAL(AUX_OUTPUT, aux_output,
1376 term->val.num ? 1 : 0, term->weak);
1378 case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE:
1379 ADD_CONFIG_TERM_VAL(AUX_SAMPLE_SIZE, aux_sample_size,
1380 term->val.num, term->weak);
1390 * Add EVSEL__CONFIG_TERM_CFG_CHG where cfg_chg will have a bit set for
1391 * each bit of attr->config that the user has changed.
1393 static int get_config_chgs(struct perf_pmu *pmu, struct list_head *head_config,
1394 struct list_head *head_terms)
1396 struct parse_events_term *term;
1400 list_for_each_entry(term, head_config, list) {
1401 switch (term->type_term) {
1402 case PARSE_EVENTS__TERM_TYPE_USER:
1403 type = perf_pmu__format_type(&pmu->format, term->config);
1404 if (type != PERF_PMU_FORMAT_VALUE_CONFIG)
1406 bits |= perf_pmu__format_bits(&pmu->format, term->config);
1408 case PARSE_EVENTS__TERM_TYPE_CONFIG:
1417 ADD_CONFIG_TERM_VAL(CFG_CHG, cfg_chg, bits, false);
1419 #undef ADD_CONFIG_TERM
1423 int parse_events_add_tracepoint(struct list_head *list, int *idx,
1424 const char *sys, const char *event,
1425 struct parse_events_error *err,
1426 struct list_head *head_config)
1429 struct perf_event_attr attr;
1431 if (config_attr(&attr, head_config, err,
1432 config_term_tracepoint))
1436 if (strpbrk(sys, "*?"))
1437 return add_tracepoint_multi_sys(list, idx, sys, event,
1440 return add_tracepoint_event(list, idx, sys, event,
1444 int parse_events_add_numeric(struct parse_events_state *parse_state,
1445 struct list_head *list,
1446 u32 type, u64 config,
1447 struct list_head *head_config)
1449 struct perf_event_attr attr;
1450 LIST_HEAD(config_terms);
1451 const char *name, *metric_id;
1455 memset(&attr, 0, sizeof(attr));
1457 attr.config = config;
1460 if (config_attr(&attr, head_config, parse_state->error,
1461 config_term_common))
1464 if (get_config_terms(head_config, &config_terms))
1468 name = get_config_name(head_config);
1469 metric_id = get_config_metric_id(head_config);
1470 ret = parse_events__add_numeric_hybrid(parse_state, list, &attr,
1472 &config_terms, &hybrid);
1474 goto out_free_terms;
1476 ret = add_event(list, &parse_state->idx, &attr, name, metric_id,
1479 free_config_terms(&config_terms);
1483 int parse_events_add_tool(struct parse_events_state *parse_state,
1484 struct list_head *list,
1487 return add_event_tool(list, &parse_state->idx, tool_event);
1490 static bool config_term_percore(struct list_head *config_terms)
1492 struct evsel_config_term *term;
1494 list_for_each_entry(term, config_terms, list) {
1495 if (term->type == EVSEL__CONFIG_TERM_PERCORE)
1496 return term->val.percore;
1502 static int parse_events__inside_hybrid_pmu(struct parse_events_state *parse_state,
1503 struct list_head *list, char *name,
1504 struct list_head *head_config)
1506 struct parse_events_term *term;
1509 if (parse_state->fake_pmu || !head_config || list_empty(head_config) ||
1510 !perf_pmu__is_hybrid(name)) {
1515 * More than one term in list.
1517 if (head_config->next && head_config->next->next != head_config)
1520 term = list_first_entry(head_config, struct parse_events_term, list);
1521 if (term && term->config && strcmp(term->config, "event")) {
1522 ret = parse_events__with_hybrid_pmu(parse_state, term->config,
1529 int parse_events_add_pmu(struct parse_events_state *parse_state,
1530 struct list_head *list, char *name,
1531 struct list_head *head_config,
1532 bool auto_merge_stats,
1535 struct perf_event_attr attr;
1536 struct perf_pmu_info info;
1537 struct perf_pmu *pmu;
1538 struct evsel *evsel;
1539 struct parse_events_error *err = parse_state->error;
1540 bool use_uncore_alias;
1541 LIST_HEAD(config_terms);
1543 pmu = parse_state->fake_pmu ?: perf_pmu__find(name);
1545 if (verbose > 1 && !(pmu && pmu->selectable)) {
1546 fprintf(stderr, "Attempting to add event pmu '%s' with '",
1549 struct parse_events_term *term;
1551 list_for_each_entry(term, head_config, list) {
1552 fprintf(stderr, "%s,", term->config);
1555 fprintf(stderr, "' that may result in non-fatal errors\n");
1561 if (asprintf(&err_str,
1562 "Cannot find PMU `%s'. Missing kernel support?",
1564 parse_events_error__handle(err, 0, err_str, NULL);
1568 if (pmu->default_config) {
1569 memcpy(&attr, pmu->default_config,
1570 sizeof(struct perf_event_attr));
1572 memset(&attr, 0, sizeof(attr));
1575 use_uncore_alias = (pmu->is_uncore && use_alias);
1578 attr.type = pmu->type;
1579 evsel = __add_event(list, &parse_state->idx, &attr,
1580 /*init_attr=*/true, /*name=*/NULL,
1581 /*metric_id=*/NULL, pmu,
1582 /*config_terms=*/NULL, auto_merge_stats,
1585 evsel->pmu_name = name ? strdup(name) : NULL;
1586 evsel->use_uncore_alias = use_uncore_alias;
1593 if (!parse_state->fake_pmu && perf_pmu__check_alias(pmu, head_config, &info))
1597 fprintf(stderr, "After aliases, add event pmu '%s' with '",
1600 struct parse_events_term *term;
1602 list_for_each_entry(term, head_config, list) {
1603 fprintf(stderr, "%s,", term->config);
1606 fprintf(stderr, "' that may result in non-fatal errors\n");
1610 * Configure hardcoded terms first, no need to check
1611 * return value when called with fail == 0 ;)
1613 if (config_attr(&attr, head_config, parse_state->error, config_term_pmu))
1616 if (get_config_terms(head_config, &config_terms))
1620 * When using default config, record which bits of attr->config were
1621 * changed by the user.
1623 if (pmu->default_config && get_config_chgs(pmu, head_config, &config_terms))
1626 if (!parse_events__inside_hybrid_pmu(parse_state, list, name,
1631 if (!parse_state->fake_pmu && perf_pmu__config(pmu, &attr, head_config, parse_state->error)) {
1632 free_config_terms(&config_terms);
1636 evsel = __add_event(list, &parse_state->idx, &attr, /*init_attr=*/true,
1637 get_config_name(head_config),
1638 get_config_metric_id(head_config), pmu,
1639 &config_terms, auto_merge_stats, /*cpu_list=*/NULL);
1644 evsel->use_config_name = true;
1646 evsel->pmu_name = name ? strdup(name) : NULL;
1647 evsel->use_uncore_alias = use_uncore_alias;
1648 evsel->percore = config_term_percore(&evsel->config_terms);
1650 if (parse_state->fake_pmu)
1653 free((char *)evsel->unit);
1654 evsel->unit = strdup(info.unit);
1655 evsel->scale = info.scale;
1656 evsel->per_pkg = info.per_pkg;
1657 evsel->snapshot = info.snapshot;
1658 evsel->metric_expr = info.metric_expr;
1659 evsel->metric_name = info.metric_name;
1663 int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
1664 char *str, struct list_head *head,
1665 struct list_head **listp)
1667 struct parse_events_term *term;
1668 struct list_head *list = NULL;
1669 struct list_head *orig_head = NULL;
1670 struct perf_pmu *pmu = NULL;
1677 head = malloc(sizeof(struct list_head));
1681 INIT_LIST_HEAD(head);
1683 config = strdup(str);
1687 if (parse_events_term__num(&term,
1688 PARSE_EVENTS__TERM_TYPE_USER,
1689 config, 1, false, &config,
1694 list_add_tail(&term->list, head);
1696 /* Add it for all PMUs that support the alias */
1697 list = malloc(sizeof(struct list_head));
1701 INIT_LIST_HEAD(list);
1703 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
1704 struct perf_pmu_alias *alias;
1706 list_for_each_entry(alias, &pmu->aliases, list) {
1707 if (!strcasecmp(alias->name, str)) {
1708 parse_events_copy_term_list(head, &orig_head);
1709 if (!parse_events_add_pmu(parse_state, list,
1710 pmu->name, orig_head,
1712 pr_debug("%s -> %s/%s/\n", str,
1713 pmu->name, alias->str);
1716 parse_events_terms__delete(orig_head);
1721 if (parse_state->fake_pmu) {
1722 if (!parse_events_add_pmu(parse_state, list, str, head,
1724 pr_debug("%s -> %s/%s/\n", str, "fake_pmu", str);
1735 parse_events_terms__delete(head);
1739 int parse_events__modifier_group(struct list_head *list,
1742 return parse_events__modifier_event(list, event_mod, true);
1746 * Check if the two uncore PMUs are from the same uncore block
1747 * The format of the uncore PMU name is uncore_#blockname_#pmuidx
1749 static bool is_same_uncore_block(const char *pmu_name_a, const char *pmu_name_b)
1751 char *end_a, *end_b;
1753 end_a = strrchr(pmu_name_a, '_');
1754 end_b = strrchr(pmu_name_b, '_');
1756 if (!end_a || !end_b)
1759 if ((end_a - pmu_name_a) != (end_b - pmu_name_b))
1762 return (strncmp(pmu_name_a, pmu_name_b, end_a - pmu_name_a) == 0);
1766 parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list,
1767 struct parse_events_state *parse_state)
1769 struct evsel *evsel, *leader;
1771 bool is_leader = true;
1772 int i, nr_pmu = 0, total_members, ret = 0;
1774 leader = list_first_entry(list, struct evsel, core.node);
1775 evsel = list_last_entry(list, struct evsel, core.node);
1776 total_members = evsel->core.idx - leader->core.idx + 1;
1778 leaders = calloc(total_members, sizeof(uintptr_t));
1779 if (WARN_ON(!leaders))
1783 * Going through the whole group and doing sanity check.
1784 * All members must use alias, and be from the same uncore block.
1785 * Also, storing the leader events in an array.
1787 __evlist__for_each_entry(list, evsel) {
1789 /* Only split the uncore group which members use alias */
1790 if (!evsel->use_uncore_alias)
1793 /* The events must be from the same uncore block */
1794 if (!is_same_uncore_block(leader->pmu_name, evsel->pmu_name))
1800 * If the event's PMU name starts to repeat, it must be a new
1801 * event. That can be used to distinguish the leader from
1802 * other members, even they have the same event name.
1804 if ((leader != evsel) &&
1805 !strcmp(leader->pmu_name, evsel->pmu_name)) {
1810 /* Store the leader event for each PMU */
1811 leaders[nr_pmu++] = (uintptr_t) evsel;
1814 /* only one event alias */
1815 if (nr_pmu == total_members) {
1816 parse_state->nr_groups--;
1821 * An uncore event alias is a joint name which means the same event
1822 * runs on all PMUs of a block.
1823 * Perf doesn't support mixed events from different PMUs in the same
1824 * group. The big group has to be split into multiple small groups
1825 * which only include the events from the same PMU.
1827 * Here the uncore event aliases must be from the same uncore block.
1828 * The number of PMUs must be same for each alias. The number of new
1829 * small groups equals to the number of PMUs.
1830 * Setting the leader event for corresponding members in each group.
1833 __evlist__for_each_entry(list, evsel) {
1836 evsel__set_leader(evsel, (struct evsel *) leaders[i++]);
1839 /* The number of members and group name are same for each group */
1840 for (i = 0; i < nr_pmu; i++) {
1841 evsel = (struct evsel *) leaders[i];
1842 evsel->core.nr_members = total_members / nr_pmu;
1843 evsel->group_name = name ? strdup(name) : NULL;
1846 /* Take the new small groups into account */
1847 parse_state->nr_groups += nr_pmu - 1;
1856 __weak struct evsel *arch_evlist__leader(struct list_head *list)
1858 return list_first_entry(list, struct evsel, core.node);
1861 void parse_events__set_leader(char *name, struct list_head *list,
1862 struct parse_events_state *parse_state)
1864 struct evsel *leader;
1866 if (list_empty(list)) {
1867 WARN_ONCE(true, "WARNING: failed to set leader: empty list");
1871 if (parse_events__set_leader_for_uncore_aliase(name, list, parse_state))
1874 leader = arch_evlist__leader(list);
1875 __perf_evlist__set_leader(list, &leader->core);
1876 leader->group_name = name ? strdup(name) : NULL;
1877 list_move(&leader->core.node, list);
1880 /* list_event is assumed to point to malloc'ed memory */
1881 void parse_events_update_lists(struct list_head *list_event,
1882 struct list_head *list_all)
1885 * Called for single event definition. Update the
1886 * 'all event' list, and reinit the 'single event'
1887 * list, for next event definition.
1889 list_splice_tail(list_event, list_all);
1893 struct event_modifier {
1910 static int get_event_modifier(struct event_modifier *mod, char *str,
1911 struct evsel *evsel)
1913 int eu = evsel ? evsel->core.attr.exclude_user : 0;
1914 int ek = evsel ? evsel->core.attr.exclude_kernel : 0;
1915 int eh = evsel ? evsel->core.attr.exclude_hv : 0;
1916 int eH = evsel ? evsel->core.attr.exclude_host : 0;
1917 int eG = evsel ? evsel->core.attr.exclude_guest : 0;
1918 int eI = evsel ? evsel->core.attr.exclude_idle : 0;
1919 int precise = evsel ? evsel->core.attr.precise_ip : 0;
1920 int precise_max = 0;
1921 int sample_read = 0;
1922 int pinned = evsel ? evsel->core.attr.pinned : 0;
1923 int exclusive = evsel ? evsel->core.attr.exclusive : 0;
1925 int exclude = eu | ek | eh;
1926 int exclude_GH = evsel ? evsel->exclude_GH : 0;
1928 int bpf_counter = 0;
1930 memset(mod, 0, sizeof(*mod));
1935 exclude = eu = ek = eh = 1;
1936 if (!exclude_GH && !perf_guest)
1939 } else if (*str == 'k') {
1941 exclude = eu = ek = eh = 1;
1943 } else if (*str == 'h') {
1945 exclude = eu = ek = eh = 1;
1947 } else if (*str == 'G') {
1949 exclude_GH = eG = eH = 1;
1951 } else if (*str == 'H') {
1953 exclude_GH = eG = eH = 1;
1955 } else if (*str == 'I') {
1957 } else if (*str == 'p') {
1959 /* use of precise requires exclude_guest */
1962 } else if (*str == 'P') {
1964 } else if (*str == 'S') {
1966 } else if (*str == 'D') {
1968 } else if (*str == 'e') {
1970 } else if (*str == 'W') {
1972 } else if (*str == 'b') {
1983 * 0 - SAMPLE_IP can have arbitrary skid
1984 * 1 - SAMPLE_IP must have constant skid
1985 * 2 - SAMPLE_IP requested to have 0 skid
1986 * 3 - SAMPLE_IP must have 0 skid
1988 * See also PERF_RECORD_MISC_EXACT_IP
1999 mod->precise = precise;
2000 mod->precise_max = precise_max;
2001 mod->exclude_GH = exclude_GH;
2002 mod->sample_read = sample_read;
2003 mod->pinned = pinned;
2005 mod->bpf_counter = bpf_counter;
2006 mod->exclusive = exclusive;
2012 * Basic modifier sanity check to validate it contains only one
2013 * instance of any modifier (apart from 'p') present.
2015 static int check_modifier(char *str)
2019 /* The sizeof includes 0 byte as well. */
2020 if (strlen(str) > (sizeof("ukhGHpppPSDIWeb") - 1))
2024 if (*p != 'p' && strchr(p + 1, *p))
2032 int parse_events__modifier_event(struct list_head *list, char *str, bool add)
2034 struct evsel *evsel;
2035 struct event_modifier mod;
2040 if (check_modifier(str))
2043 if (!add && get_event_modifier(&mod, str, NULL))
2046 __evlist__for_each_entry(list, evsel) {
2047 if (add && get_event_modifier(&mod, str, evsel))
2050 evsel->core.attr.exclude_user = mod.eu;
2051 evsel->core.attr.exclude_kernel = mod.ek;
2052 evsel->core.attr.exclude_hv = mod.eh;
2053 evsel->core.attr.precise_ip = mod.precise;
2054 evsel->core.attr.exclude_host = mod.eH;
2055 evsel->core.attr.exclude_guest = mod.eG;
2056 evsel->core.attr.exclude_idle = mod.eI;
2057 evsel->exclude_GH = mod.exclude_GH;
2058 evsel->sample_read = mod.sample_read;
2059 evsel->precise_max = mod.precise_max;
2060 evsel->weak_group = mod.weak;
2061 evsel->bpf_counter = mod.bpf_counter;
2063 if (evsel__is_group_leader(evsel)) {
2064 evsel->core.attr.pinned = mod.pinned;
2065 evsel->core.attr.exclusive = mod.exclusive;
2072 int parse_events_name(struct list_head *list, const char *name)
2074 struct evsel *evsel;
2076 __evlist__for_each_entry(list, evsel) {
2078 evsel->name = strdup(name);
2085 comp_pmu(const void *p1, const void *p2)
2087 struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1;
2088 struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2;
2090 return strcasecmp(pmu1->symbol, pmu2->symbol);
2093 static void perf_pmu__parse_cleanup(void)
2095 if (perf_pmu_events_list_num > 0) {
2096 struct perf_pmu_event_symbol *p;
2099 for (i = 0; i < perf_pmu_events_list_num; i++) {
2100 p = perf_pmu_events_list + i;
2103 zfree(&perf_pmu_events_list);
2104 perf_pmu_events_list_num = 0;
2108 #define SET_SYMBOL(str, stype) \
2117 * Read the pmu events list from sysfs
2118 * Save it into perf_pmu_events_list
2120 static void perf_pmu__parse_init(void)
2123 struct perf_pmu *pmu = NULL;
2124 struct perf_pmu_alias *alias;
2128 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
2129 list_for_each_entry(alias, &pmu->aliases, list) {
2130 char *tmp = strchr(alias->name, '-');
2135 tmp2 = strchr(tmp + 1, '-');
2146 perf_pmu_events_list_num = -1;
2149 perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len);
2150 if (!perf_pmu_events_list)
2152 perf_pmu_events_list_num = len;
2156 while ((pmu = perf_pmu__scan(pmu)) != NULL) {
2157 list_for_each_entry(alias, &pmu->aliases, list) {
2158 struct perf_pmu_event_symbol *p = perf_pmu_events_list + len;
2159 char *tmp = strchr(alias->name, '-');
2163 tmp2 = strchr(tmp + 1, '-');
2165 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
2166 PMU_EVENT_SYMBOL_PREFIX);
2169 SET_SYMBOL(strndup(tmp, tmp2 - tmp), PMU_EVENT_SYMBOL_SUFFIX);
2171 SET_SYMBOL(strdup(++tmp2), PMU_EVENT_SYMBOL_SUFFIX2);
2174 SET_SYMBOL(strndup(alias->name, tmp - alias->name),
2175 PMU_EVENT_SYMBOL_PREFIX);
2177 SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX);
2180 SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL);
2185 qsort(perf_pmu_events_list, len,
2186 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2190 perf_pmu__parse_cleanup();
2194 * This function injects special term in
2195 * perf_pmu_events_list so the test code
2196 * can check on this functionality.
2198 int perf_pmu__test_parse_init(void)
2200 struct perf_pmu_event_symbol *list, *tmp, symbols[] = {
2201 {(char *)"read", PMU_EVENT_SYMBOL},
2202 {(char *)"event", PMU_EVENT_SYMBOL_PREFIX},
2203 {(char *)"two", PMU_EVENT_SYMBOL_SUFFIX},
2204 {(char *)"hyphen", PMU_EVENT_SYMBOL_SUFFIX},
2205 {(char *)"hyph", PMU_EVENT_SYMBOL_SUFFIX2},
2209 tmp = list = malloc(sizeof(*list) * ARRAY_SIZE(symbols));
2213 for (i = 0; i < ARRAY_SIZE(symbols); i++, tmp++) {
2214 tmp->type = symbols[i].type;
2215 tmp->symbol = strdup(symbols[i].symbol);
2220 perf_pmu_events_list = list;
2221 perf_pmu_events_list_num = ARRAY_SIZE(symbols);
2223 qsort(perf_pmu_events_list, ARRAY_SIZE(symbols),
2224 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2228 for (j = 0, tmp = list; j < i; j++, tmp++)
2234 enum perf_pmu_event_symbol_type
2235 perf_pmu__parse_check(const char *name)
2237 struct perf_pmu_event_symbol p, *r;
2239 /* scan kernel pmu events from sysfs if needed */
2240 if (perf_pmu_events_list_num == 0)
2241 perf_pmu__parse_init();
2243 * name "cpu" could be prefix of cpu-cycles or cpu// events.
2244 * cpu-cycles has been handled by hardcode.
2245 * So it must be cpu// events, not kernel pmu event.
2247 if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu"))
2248 return PMU_EVENT_SYMBOL_ERR;
2250 p.symbol = strdup(name);
2251 r = bsearch(&p, perf_pmu_events_list,
2252 (size_t) perf_pmu_events_list_num,
2253 sizeof(struct perf_pmu_event_symbol), comp_pmu);
2255 return r ? r->type : PMU_EVENT_SYMBOL_ERR;
2258 static int parse_events__scanner(const char *str,
2259 struct parse_events_state *parse_state)
2261 YY_BUFFER_STATE buffer;
2265 ret = parse_events_lex_init_extra(parse_state, &scanner);
2269 buffer = parse_events__scan_string(str, scanner);
2272 parse_events_debug = 1;
2273 parse_events_set_debug(1, scanner);
2275 ret = parse_events_parse(parse_state, scanner);
2277 parse_events__flush_buffer(buffer, scanner);
2278 parse_events__delete_buffer(buffer, scanner);
2279 parse_events_lex_destroy(scanner);
2284 * parse event config string, return a list of event terms.
2286 int parse_events_terms(struct list_head *terms, const char *str)
2288 struct parse_events_state parse_state = {
2290 .stoken = PE_START_TERMS,
2294 ret = parse_events__scanner(str, &parse_state);
2295 perf_pmu__parse_cleanup();
2298 list_splice(parse_state.terms, terms);
2299 zfree(&parse_state.terms);
2303 parse_events_terms__delete(parse_state.terms);
2307 static int parse_events__with_hybrid_pmu(struct parse_events_state *parse_state,
2308 const char *str, char *pmu_name,
2309 struct list_head *list)
2311 struct parse_events_state ps = {
2312 .list = LIST_HEAD_INIT(ps.list),
2313 .stoken = PE_START_EVENTS,
2314 .hybrid_pmu_name = pmu_name,
2315 .idx = parse_state->idx,
2319 ret = parse_events__scanner(str, &ps);
2320 perf_pmu__parse_cleanup();
2323 if (!list_empty(&ps.list)) {
2324 list_splice(&ps.list, list);
2325 parse_state->idx = ps.idx;
2334 int __parse_events(struct evlist *evlist, const char *str,
2335 struct parse_events_error *err, struct perf_pmu *fake_pmu)
2337 struct parse_events_state parse_state = {
2338 .list = LIST_HEAD_INIT(parse_state.list),
2339 .idx = evlist->core.nr_entries,
2342 .stoken = PE_START_EVENTS,
2343 .fake_pmu = fake_pmu,
2347 ret = parse_events__scanner(str, &parse_state);
2348 perf_pmu__parse_cleanup();
2350 if (!ret && list_empty(&parse_state.list)) {
2351 WARN_ONCE(true, "WARNING: event parser found nothing\n");
2356 * Add list to the evlist even with errors to allow callers to clean up.
2358 evlist__splice_list_tail(evlist, &parse_state.list);
2363 evlist->core.nr_groups += parse_state.nr_groups;
2364 last = evlist__last(evlist);
2365 last->cmdline_group_boundary = true;
2371 * There are 2 users - builtin-record and builtin-test objects.
2372 * Both call evlist__delete in case of error, so we dont
2378 void parse_events_error__init(struct parse_events_error *err)
2380 bzero(err, sizeof(*err));
2383 void parse_events_error__exit(struct parse_events_error *err)
2387 zfree(&err->first_str);
2388 zfree(&err->first_help);
2391 void parse_events_error__handle(struct parse_events_error *err, int idx,
2392 char *str, char *help)
2394 if (WARN(!str, "WARNING: failed to provide error string\n")) {
2398 switch (err->num_errors) {
2405 err->first_idx = err->idx;
2407 err->first_str = err->str;
2409 err->first_help = err->help;
2413 pr_debug("Multiple errors dropping message: %s (%s)\n",
2414 err->str, err->help);
2424 #define MAX_WIDTH 1000
2425 static int get_term_width(void)
2429 get_term_dimensions(&ws);
2430 return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
2433 static void __parse_events_error__print(int err_idx, const char *err_str,
2434 const char *err_help, const char *event)
2436 const char *str = "invalid or unsupported event: ";
2437 char _buf[MAX_WIDTH];
2438 char *buf = (char *) event;
2441 /* -2 for extra '' in the final fprintf */
2442 int width = get_term_width() - 2;
2443 int len_event = strlen(event);
2444 int len_str, max_len, cut = 0;
2447 * Maximum error index indent, we will cut
2448 * the event string if it's bigger.
2450 int max_err_idx = 13;
2453 * Let's be specific with the message when
2454 * we have the precise error.
2456 str = "event syntax error: ";
2457 len_str = strlen(str);
2458 max_len = width - len_str;
2462 /* We're cutting from the beginning. */
2463 if (err_idx > max_err_idx)
2464 cut = err_idx - max_err_idx;
2466 strncpy(buf, event + cut, max_len);
2468 /* Mark cut parts with '..' on both sides. */
2470 buf[0] = buf[1] = '.';
2472 if ((len_event - cut) > max_len) {
2473 buf[max_len - 1] = buf[max_len - 2] = '.';
2477 idx = len_str + err_idx - cut;
2480 fprintf(stderr, "%s'%s'\n", str, buf);
2482 fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err_str);
2484 fprintf(stderr, "\n%s\n", err_help);
2488 void parse_events_error__print(struct parse_events_error *err,
2491 if (!err->num_errors)
2494 __parse_events_error__print(err->idx, err->str, err->help, event);
2496 if (err->num_errors > 1) {
2497 fputs("\nInitial error:\n", stderr);
2498 __parse_events_error__print(err->first_idx, err->first_str,
2499 err->first_help, event);
2505 int parse_events_option(const struct option *opt, const char *str,
2506 int unset __maybe_unused)
2508 struct evlist *evlist = *(struct evlist **)opt->value;
2509 struct parse_events_error err;
2512 parse_events_error__init(&err);
2513 ret = parse_events(evlist, str, &err);
2516 parse_events_error__print(&err, str);
2517 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
2519 parse_events_error__exit(&err);
2524 int parse_events_option_new_evlist(const struct option *opt, const char *str, int unset)
2526 struct evlist **evlistp = opt->value;
2529 if (*evlistp == NULL) {
2530 *evlistp = evlist__new();
2532 if (*evlistp == NULL) {
2533 fprintf(stderr, "Not enough memory to create evlist\n");
2538 ret = parse_events_option(opt, str, unset);
2540 evlist__delete(*evlistp);
2548 foreach_evsel_in_last_glob(struct evlist *evlist,
2549 int (*func)(struct evsel *evsel,
2553 struct evsel *last = NULL;
2557 * Don't return when list_empty, give func a chance to report
2558 * error when it found last == NULL.
2560 * So no need to WARN here, let *func do this.
2562 if (evlist->core.nr_entries > 0)
2563 last = evlist__last(evlist);
2566 err = (*func)(last, arg);
2572 if (last->core.node.prev == &evlist->core.entries)
2574 last = list_entry(last->core.node.prev, struct evsel, core.node);
2575 } while (!last->cmdline_group_boundary);
2580 static int set_filter(struct evsel *evsel, const void *arg)
2582 const char *str = arg;
2584 int nr_addr_filters = 0;
2585 struct perf_pmu *pmu = NULL;
2587 if (evsel == NULL) {
2589 "--filter option should follow a -e tracepoint or HW tracer option\n");
2593 if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) {
2594 if (evsel__append_tp_filter(evsel, str) < 0) {
2596 "not enough memory to hold filter string\n");
2603 while ((pmu = perf_pmu__scan(pmu)) != NULL)
2604 if (pmu->type == evsel->core.attr.type) {
2610 perf_pmu__scan_file(pmu, "nr_addr_filters",
2611 "%d", &nr_addr_filters);
2613 if (!nr_addr_filters) {
2615 "This CPU does not support address filtering\n");
2619 if (evsel__append_addr_filter(evsel, str) < 0) {
2621 "not enough memory to hold filter string\n");
2628 int parse_filter(const struct option *opt, const char *str,
2629 int unset __maybe_unused)
2631 struct evlist *evlist = *(struct evlist **)opt->value;
2633 return foreach_evsel_in_last_glob(evlist, set_filter,
2637 static int add_exclude_perf_filter(struct evsel *evsel,
2638 const void *arg __maybe_unused)
2640 char new_filter[64];
2642 if (evsel == NULL || evsel->core.attr.type != PERF_TYPE_TRACEPOINT) {
2644 "--exclude-perf option should follow a -e tracepoint option\n");
2648 snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
2650 if (evsel__append_tp_filter(evsel, new_filter) < 0) {
2652 "not enough memory to hold filter string\n");
2659 int exclude_perf(const struct option *opt,
2660 const char *arg __maybe_unused,
2661 int unset __maybe_unused)
2663 struct evlist *evlist = *(struct evlist **)opt->value;
2665 return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
2669 static const char * const event_type_descriptors[] = {
2673 "Hardware cache event",
2674 "Raw hardware event descriptor",
2675 "Hardware breakpoint",
2678 static int cmp_string(const void *a, const void *b)
2680 const char * const *as = a;
2681 const char * const *bs = b;
2683 return strcmp(*as, *bs);
2687 * Print the events from <debugfs_mount_point>/tracing/events
2690 void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
2693 DIR *sys_dir, *evt_dir;
2694 struct dirent *sys_dirent, *evt_dirent;
2695 char evt_path[MAXPATHLEN];
2697 char **evt_list = NULL;
2698 unsigned int evt_i = 0, evt_num = 0;
2699 bool evt_num_known = false;
2702 sys_dir = tracing_events__opendir();
2706 if (evt_num_known) {
2707 evt_list = zalloc(sizeof(char *) * evt_num);
2709 goto out_close_sys_dir;
2712 for_each_subsystem(sys_dir, sys_dirent) {
2713 if (subsys_glob != NULL &&
2714 !strglobmatch(sys_dirent->d_name, subsys_glob))
2717 dir_path = get_events_file(sys_dirent->d_name);
2720 evt_dir = opendir(dir_path);
2724 for_each_event(dir_path, evt_dir, evt_dirent) {
2725 if (event_glob != NULL &&
2726 !strglobmatch(evt_dirent->d_name, event_glob))
2729 if (!evt_num_known) {
2734 snprintf(evt_path, MAXPATHLEN, "%s:%s",
2735 sys_dirent->d_name, evt_dirent->d_name);
2737 evt_list[evt_i] = strdup(evt_path);
2738 if (evt_list[evt_i] == NULL) {
2739 put_events_file(dir_path);
2740 goto out_close_evt_dir;
2746 put_events_file(dir_path);
2750 if (!evt_num_known) {
2751 evt_num_known = true;
2754 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
2756 while (evt_i < evt_num) {
2758 printf("%s ", evt_list[evt_i++]);
2761 printf(" %-50s [%s]\n", evt_list[evt_i++],
2762 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
2764 if (evt_num && pager_in_use())
2769 for (evt_i = 0; evt_i < evt_num; evt_i++)
2770 zfree(&evt_list[evt_i]);
2779 printf("FATAL: not enough memory to print %s\n",
2780 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
2786 * Check whether event is in <debugfs_mount_point>/tracing/events
2789 int is_valid_tracepoint(const char *event_string)
2791 DIR *sys_dir, *evt_dir;
2792 struct dirent *sys_dirent, *evt_dirent;
2793 char evt_path[MAXPATHLEN];
2796 sys_dir = tracing_events__opendir();
2800 for_each_subsystem(sys_dir, sys_dirent) {
2801 dir_path = get_events_file(sys_dirent->d_name);
2804 evt_dir = opendir(dir_path);
2808 for_each_event(dir_path, evt_dir, evt_dirent) {
2809 snprintf(evt_path, MAXPATHLEN, "%s:%s",
2810 sys_dirent->d_name, evt_dirent->d_name);
2811 if (!strcmp(evt_path, event_string)) {
2819 put_events_file(dir_path);
2825 static bool is_event_supported(u8 type, u64 config)
2829 struct evsel *evsel;
2830 struct perf_event_attr attr = {
2835 struct perf_thread_map *tmap = thread_map__new_by_tid(0);
2840 evsel = evsel__new(&attr);
2842 open_return = evsel__open(evsel, NULL, tmap);
2843 ret = open_return >= 0;
2845 if (open_return == -EACCES) {
2847 * This happens if the paranoid value
2848 * /proc/sys/kernel/perf_event_paranoid is set to 2
2849 * Re-run with exclude_kernel set; we don't do that
2850 * by default as some ARM machines do not support it.
2853 evsel->core.attr.exclude_kernel = 1;
2854 ret = evsel__open(evsel, NULL, tmap) >= 0;
2856 evsel__delete(evsel);
2859 perf_thread_map__put(tmap);
2863 void print_sdt_events(const char *subsys_glob, const char *event_glob,
2866 struct probe_cache *pcache;
2867 struct probe_cache_entry *ent;
2868 struct strlist *bidlist, *sdtlist;
2869 struct strlist_config cfg = {.dont_dupstr = true};
2870 struct str_node *nd, *nd2;
2871 char *buf, *path, *ptr = NULL;
2872 bool show_detail = false;
2875 sdtlist = strlist__new(NULL, &cfg);
2877 pr_debug("Failed to allocate new strlist for SDT\n");
2880 bidlist = build_id_cache__list_all(true);
2882 pr_debug("Failed to get buildids: %d\n", errno);
2885 strlist__for_each_entry(nd, bidlist) {
2886 pcache = probe_cache__new(nd->s, NULL);
2889 list_for_each_entry(ent, &pcache->entries, node) {
2893 !strglobmatch(ent->pev.group, subsys_glob))
2896 !strglobmatch(ent->pev.event, event_glob))
2898 ret = asprintf(&buf, "%s:%s@%s", ent->pev.group,
2899 ent->pev.event, nd->s);
2901 strlist__add(sdtlist, buf);
2903 probe_cache__delete(pcache);
2905 strlist__delete(bidlist);
2907 strlist__for_each_entry(nd, sdtlist) {
2908 buf = strchr(nd->s, '@');
2912 printf("%s ", nd->s);
2915 nd2 = strlist__next(nd);
2917 ptr = strchr(nd2->s, '@');
2920 if (strcmp(nd->s, nd2->s) == 0)
2924 path = build_id_cache__origname(buf);
2925 ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf);
2927 printf(" %-50s [%s]\n", buf, "SDT event");
2932 printf(" %-50s [%s]\n", nd->s, "SDT event");
2934 if (strcmp(nd->s, nd2->s) != 0)
2935 show_detail = false;
2940 strlist__delete(sdtlist);
2943 int print_hwcache_events(const char *event_glob, bool name_only)
2945 unsigned int type, op, i, evt_i = 0, evt_num = 0, npmus = 0;
2946 char name[64], new_name[128];
2947 char **evt_list = NULL, **evt_pmus = NULL;
2948 bool evt_num_known = false;
2949 struct perf_pmu *pmu = NULL;
2951 if (perf_pmu__has_hybrid()) {
2952 npmus = perf_pmu__hybrid_pmu_num();
2953 evt_pmus = zalloc(sizeof(char *) * npmus);
2959 if (evt_num_known) {
2960 evt_list = zalloc(sizeof(char *) * evt_num);
2965 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
2966 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
2967 /* skip invalid cache type */
2968 if (!evsel__is_cache_op_valid(type, op))
2971 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
2972 unsigned int hybrid_supported = 0, j;
2975 __evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name));
2976 if (event_glob != NULL && !strglobmatch(name, event_glob))
2979 if (!perf_pmu__has_hybrid()) {
2980 if (!is_event_supported(PERF_TYPE_HW_CACHE,
2981 type | (op << 8) | (i << 16))) {
2985 perf_pmu__for_each_hybrid_pmu(pmu) {
2986 if (!evt_num_known) {
2991 supported = is_event_supported(
2993 type | (op << 8) | (i << 16) |
2994 ((__u64)pmu->type << PERF_PMU_TYPE_SHIFT));
2996 snprintf(new_name, sizeof(new_name), "%s/%s/",
2998 evt_pmus[hybrid_supported] = strdup(new_name);
3003 if (hybrid_supported == 0)
3007 if (!evt_num_known) {
3012 if ((hybrid_supported == 0) ||
3013 (hybrid_supported == npmus)) {
3014 evt_list[evt_i] = strdup(name);
3016 for (j = 0; j < npmus; j++)
3017 zfree(&evt_pmus[j]);
3020 for (j = 0; j < hybrid_supported; j++) {
3021 evt_list[evt_i++] = evt_pmus[j];
3027 if (evt_list[evt_i] == NULL)
3034 if (!evt_num_known) {
3035 evt_num_known = true;
3039 for (evt_i = 0; evt_i < evt_num; evt_i++) {
3040 if (!evt_list[evt_i])
3045 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
3047 while (evt_i < evt_num) {
3049 printf("%s ", evt_list[evt_i++]);
3052 printf(" %-50s [%s]\n", evt_list[evt_i++],
3053 event_type_descriptors[PERF_TYPE_HW_CACHE]);
3055 if (evt_num && pager_in_use())
3060 for (evt_i = 0; evt_i < evt_num; evt_i++)
3061 zfree(&evt_list[evt_i]);
3064 for (evt_i = 0; evt_i < npmus; evt_i++)
3065 zfree(&evt_pmus[evt_i]);
3070 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]);
3076 static void print_tool_event(const struct event_symbol *syms, const char *event_glob,
3079 if (syms->symbol == NULL)
3082 if (event_glob && !(strglobmatch(syms->symbol, event_glob) ||
3083 (syms->alias && strglobmatch(syms->alias, event_glob))))
3087 printf("%s ", syms->symbol);
3089 char name[MAX_NAME_LEN];
3090 if (syms->alias && strlen(syms->alias))
3091 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
3093 strlcpy(name, syms->symbol, MAX_NAME_LEN);
3094 printf(" %-50s [%s]\n", name, "Tool event");
3098 void print_tool_events(const char *event_glob, bool name_only)
3100 // Start at 1 because the first enum entry symbols no tool event
3101 for (int i = 1; i < PERF_TOOL_MAX; ++i) {
3102 print_tool_event(event_symbols_tool + i, event_glob, name_only);
3108 void print_symbol_events(const char *event_glob, unsigned type,
3109 struct event_symbol *syms, unsigned max,
3112 unsigned int i, evt_i = 0, evt_num = 0;
3113 char name[MAX_NAME_LEN];
3114 char **evt_list = NULL;
3115 bool evt_num_known = false;
3118 if (evt_num_known) {
3119 evt_list = zalloc(sizeof(char *) * evt_num);
3125 for (i = 0; i < max; i++, syms++) {
3127 * New attr.config still not supported here, the latest
3128 * example was PERF_COUNT_SW_CGROUP_SWITCHES
3130 if (syms->symbol == NULL)
3133 if (event_glob != NULL && !(strglobmatch(syms->symbol, event_glob) ||
3134 (syms->alias && strglobmatch(syms->alias, event_glob))))
3137 if (!is_event_supported(type, i))
3140 if (!evt_num_known) {
3145 if (!name_only && strlen(syms->alias))
3146 snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias);
3148 strlcpy(name, syms->symbol, MAX_NAME_LEN);
3150 evt_list[evt_i] = strdup(name);
3151 if (evt_list[evt_i] == NULL)
3156 if (!evt_num_known) {
3157 evt_num_known = true;
3160 qsort(evt_list, evt_num, sizeof(char *), cmp_string);
3162 while (evt_i < evt_num) {
3164 printf("%s ", evt_list[evt_i++]);
3167 printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]);
3169 if (evt_num && pager_in_use())
3174 for (evt_i = 0; evt_i < evt_num; evt_i++)
3175 zfree(&evt_list[evt_i]);
3180 printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]);
3186 * Print the help text for the event symbols:
3188 void print_events(const char *event_glob, bool name_only, bool quiet_flag,
3189 bool long_desc, bool details_flag, bool deprecated,
3190 const char *pmu_name)
3192 print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
3193 event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
3195 print_symbol_events(event_glob, PERF_TYPE_SOFTWARE,
3196 event_symbols_sw, PERF_COUNT_SW_MAX, name_only);
3197 print_tool_events(event_glob, name_only);
3199 print_hwcache_events(event_glob, name_only);
3201 print_pmu_events(event_glob, name_only, quiet_flag, long_desc,
3202 details_flag, deprecated, pmu_name);
3204 if (event_glob != NULL)
3208 printf(" %-50s [%s]\n",
3210 event_type_descriptors[PERF_TYPE_RAW]);
3211 printf(" %-50s [%s]\n",
3212 "cpu/t1=v1[,t2=v2,t3 ...]/modifier",
3213 event_type_descriptors[PERF_TYPE_RAW]);
3215 printf(" (see 'man perf-list' on how to encode it)\n\n");
3217 printf(" %-50s [%s]\n",
3218 "mem:<addr>[/len][:access]",
3219 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
3224 print_tracepoint_events(NULL, NULL, name_only);
3226 print_sdt_events(NULL, NULL, name_only);
3228 metricgroup__print(true, true, NULL, name_only, details_flag,
3231 print_libpfm_events(name_only, long_desc);
3234 int parse_events__is_hardcoded_term(struct parse_events_term *term)
3236 return term->type_term != PARSE_EVENTS__TERM_TYPE_USER;
3239 static int new_term(struct parse_events_term **_term,
3240 struct parse_events_term *temp,
3243 struct parse_events_term *term;
3245 term = malloc(sizeof(*term));
3250 INIT_LIST_HEAD(&term->list);
3253 switch (term->type_val) {
3254 case PARSE_EVENTS__TERM_TYPE_NUM:
3255 term->val.num = num;
3257 case PARSE_EVENTS__TERM_TYPE_STR:
3258 term->val.str = str;
3269 int parse_events_term__num(struct parse_events_term **term,
3270 int type_term, char *config, u64 num,
3272 void *loc_term_, void *loc_val_)
3274 YYLTYPE *loc_term = loc_term_;
3275 YYLTYPE *loc_val = loc_val_;
3277 struct parse_events_term temp = {
3278 .type_val = PARSE_EVENTS__TERM_TYPE_NUM,
3279 .type_term = type_term,
3280 .config = config ? : strdup(config_term_names[type_term]),
3281 .no_value = no_value,
3282 .err_term = loc_term ? loc_term->first_column : 0,
3283 .err_val = loc_val ? loc_val->first_column : 0,
3286 return new_term(term, &temp, NULL, num);
3289 int parse_events_term__str(struct parse_events_term **term,
3290 int type_term, char *config, char *str,
3291 void *loc_term_, void *loc_val_)
3293 YYLTYPE *loc_term = loc_term_;
3294 YYLTYPE *loc_val = loc_val_;
3296 struct parse_events_term temp = {
3297 .type_val = PARSE_EVENTS__TERM_TYPE_STR,
3298 .type_term = type_term,
3300 .err_term = loc_term ? loc_term->first_column : 0,
3301 .err_val = loc_val ? loc_val->first_column : 0,
3304 return new_term(term, &temp, str, 0);
3307 int parse_events_term__sym_hw(struct parse_events_term **term,
3308 char *config, unsigned idx)
3310 struct event_symbol *sym;
3312 struct parse_events_term temp = {
3313 .type_val = PARSE_EVENTS__TERM_TYPE_STR,
3314 .type_term = PARSE_EVENTS__TERM_TYPE_USER,
3319 temp.config = strdup("event");
3323 BUG_ON(idx >= PERF_COUNT_HW_MAX);
3324 sym = &event_symbols_hw[idx];
3326 str = strdup(sym->symbol);
3329 return new_term(term, &temp, str, 0);
3332 int parse_events_term__clone(struct parse_events_term **new,
3333 struct parse_events_term *term)
3336 struct parse_events_term temp = {
3337 .type_val = term->type_val,
3338 .type_term = term->type_term,
3340 .err_term = term->err_term,
3341 .err_val = term->err_val,
3345 temp.config = strdup(term->config);
3349 if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM)
3350 return new_term(new, &temp, NULL, term->val.num);
3352 str = strdup(term->val.str);
3355 return new_term(new, &temp, str, 0);
3358 void parse_events_term__delete(struct parse_events_term *term)
3360 if (term->array.nr_ranges)
3361 zfree(&term->array.ranges);
3363 if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM)
3364 zfree(&term->val.str);
3366 zfree(&term->config);
3370 int parse_events_copy_term_list(struct list_head *old,
3371 struct list_head **new)
3373 struct parse_events_term *term, *n;
3381 *new = malloc(sizeof(struct list_head));
3384 INIT_LIST_HEAD(*new);
3386 list_for_each_entry (term, old, list) {
3387 ret = parse_events_term__clone(&n, term);
3390 list_add_tail(&n->list, *new);
3395 void parse_events_terms__purge(struct list_head *terms)
3397 struct parse_events_term *term, *h;
3399 list_for_each_entry_safe(term, h, terms, list) {
3400 list_del_init(&term->list);
3401 parse_events_term__delete(term);
3405 void parse_events_terms__delete(struct list_head *terms)
3409 parse_events_terms__purge(terms);
3413 void parse_events__clear_array(struct parse_events_array *a)
3418 void parse_events_evlist_error(struct parse_events_state *parse_state,
3419 int idx, const char *str)
3421 if (!parse_state->error)
3424 parse_events_error__handle(parse_state->error, idx, strdup(str), NULL);
3427 static void config_terms_list(char *buf, size_t buf_sz)
3433 for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) {
3434 const char *name = config_term_names[i];
3436 if (!config_term_avail(i, NULL))
3443 if (strlen(buf) + strlen(name) + 2 >= buf_sz)
3455 * Return string contains valid config terms of an event.
3456 * @additional_terms: For terms such as PMU sysfs terms.
3458 char *parse_events_formats_error_string(char *additional_terms)
3461 /* "no-overwrite" is the longest name */
3462 char static_terms[__PARSE_EVENTS__TERM_TYPE_NR *
3463 (sizeof("no-overwrite") - 1)];
3465 config_terms_list(static_terms, sizeof(static_terms));
3467 if (additional_terms) {
3468 if (asprintf(&str, "valid terms: %s,%s",
3469 additional_terms, static_terms) < 0)
3472 if (asprintf(&str, "valid terms: %s", static_terms) < 0)
3481 struct evsel *parse_events__add_event_hybrid(struct list_head *list, int *idx,
3482 struct perf_event_attr *attr,
3484 const char *metric_id,
3485 struct perf_pmu *pmu,
3486 struct list_head *config_terms)
3488 return __add_event(list, idx, attr, /*init_attr=*/true, name, metric_id,
3489 pmu, config_terms, /*auto_merge_stats=*/false,